JP2014085074A - Humidity controller - Google Patents

Abstract

An object of the present invention is to improve user convenience by eliminating a target humidity setting change by a user.
A humidity control apparatus includes a setting unit in which a target humidity range is set, and a controller that selectively executes a dehumidifying operation and a humidifying operation. In this controller, when the indoor humidity becomes higher than the upper limit value of the target humidity range set in the setting unit, the dehumidifying operation is performed with the upper limit value as the target humidity, and the indoor humidity is set in the setting unit. When it becomes lower than the lower limit value of the humidity range, a humidifying operation with the lower limit value as the target humidity is executed.
[Selection] Figure 18

Description

  The present invention relates to a humidity control apparatus that adjusts humidity in a room, and particularly relates to a measure for improving user convenience.

  2. Description of the Related Art Conventionally, there is known a humidity control apparatus that supplies humidity that has been dehumidified or humidified into a room to condition the room. For example, Patent Document 1 discloses this type of humidity control apparatus. This humidity control apparatus includes a compressor, a four-way switching valve, and a refrigerant circuit to which two adsorption heat exchangers are connected. When the refrigerant is circulated, one adsorption heat exchanger functions as an evaporator, and the other The adsorption heat exchanger is configured to function as a condenser. In the adsorption heat exchanger as an evaporator, the adsorbent is cooled by the refrigerant, and an adsorption operation for adsorbing moisture in the air to the adsorbent is performed. On the other hand, in the adsorption heat exchanger serving as a condenser, the adsorbent is heated by the refrigerant, and a regeneration operation for desorbing moisture from the adsorbent into the air is performed. The regeneration operation and the adsorption operation are alternately repeated between the two adsorption heat exchangers by switching the refrigerant circulation direction in the refrigerant circuit with the four-way switching valve.

  In this humidity control apparatus, a dehumidifying operation and a humidifying operation are performed. In the dehumidifying operation, outdoor air (OA) is guided to an adsorption heat exchanger that performs an adsorption operation, and air dehumidified by the adsorption heat exchanger is supplied into the room. At this time, the indoor air (RA) is guided to the adsorption heat exchanger that performs the regeneration operation, and is discharged to the outside together with the moisture desorbed from the adsorbent of the adsorption heat exchanger.

  On the other hand, in the humidification operation, outdoor air (OA) is led to an adsorption heat exchanger that performs a regeneration operation, and air humidified by the adsorption heat exchanger is supplied indoors. At this time, the indoor air (RA) is guided to an adsorption heat exchanger that performs an adsorption operation, adsorbs moisture to the adsorbent of the adsorption heat exchanger, and then is discharged to the outside.

JP 2009-92299 A

  In the conventional humidity control apparatus, the humidity control operation that selectively executes the dehumidifying operation and the humidifying operation may be performed. In the humidity control operation, for example, in the summer when the humidity is high, the dehumidifying operation is executed when the indoor humidity becomes higher than a predetermined target humidity. In the winter when the humidity is low, the indoor humidity becomes lower than the predetermined target humidity. Humidification operation is executed.

  However, in the conventional humidity control operation, when the target humidity of the dehumidifying operation in summer is increased and the target humidity of the humidifying operation in winter is decreased, and the indoor humidity is to be kept within a predetermined range, the user performs the dehumidifying operation and humidifying operation. The target humidity has to be set and changed at the time of switching to operation, and there is a problem that it is not convenient for the user.

  The present invention has been made in view of the above points, and when the humidity control operation is performed to keep the indoor humidity within a predetermined range, the setting of the target humidity is not changed by the user and the convenience of the user is improved. The purpose is to let you.

  The first invention provides a dehumidifying part (33a, 33b) for dehumidifying air, a humidifying part (33a, 33b) for humidifying air, and the dehumidifying part (33a, 33b) so that the indoor humidity becomes a target humidity. And a controller (150) for controlling a humidity control operation for selectively performing the dehumidifying operation for supplying the air dehumidified in the room to the room and the humidifying operation for supplying the air humidified by the humidifying unit to the room. Intended for humidity control equipment. The control unit (150) includes a setting unit (120) for setting a target humidity range from a plurality of humidity ranges, and the control unit (150) sets the upper limit when the indoor humidity becomes higher than the upper limit value of the target humidity range. The dehumidifying operation is performed using the value as the target humidity, and when the indoor humidity becomes lower than the lower limit value of the target humidity range, the humidifying operation is performed using the lower limit value as the target humidity.

  In the said 1st invention, when performing humidity control operation, the target humidity range is set by the user. Then, when the humidity control operation is started and the indoor humidity becomes higher than the upper limit value of the target humidity range, a dehumidifying operation is performed with the upper limit value as the target humidity, and the indoor humidity is lower than the lower limit value of the target humidity range. If it becomes lower, the humidification operation with the lower limit as the target humidity is executed.

  Thus, in the first aspect, the indoor humidity is maintained within the target humidity range (between the upper limit value and the lower limit value) without the user changing the setting of the target humidity during the humidity control operation.

  According to a second aspect, in the first aspect, the plurality of humidity ranges of the setting unit (120) have different differences between the upper limit value and the lower limit value, and the larger the difference, the higher the upper limit value. The lower limit is low.

  In the second aspect of the invention, the wider the humidity range selected by the user as the target humidity range (the greater the difference between the upper limit value and the lower limit value of the humidity range), the higher the target humidity of the dehumidifying operation that is the upper limit value. The target humidity for the humidifying operation is lower. During each operation of the dehumidifying operation and the humidifying operation, the difference between the indoor humidity and the target humidity is reduced, and the operation output required to set the indoor humidity to the target humidity can be suppressed to a low level. Reduced.

  As described above, in the second aspect of the invention, the humidity control operation with lower power consumption is performed as the humidity range selected by the user as the target humidity range is wider. For this reason, the user can select a relatively wide humidity range and perform humidity control with an emphasis on energy saving (reduction of power consumption), or select a relatively narrow humidity range and adjust the humidity with an emphasis on indoor comfort. You can choose whether to drive.

  In a third aspect based on the second aspect, the setting unit (120) sets the humidity range having the largest difference between the upper limit value and the lower limit value as the target humidity range among the plurality of humidity ranges. It has a dedicated button.

  In the said 3rd invention, when performing a humidity control operation, if a user presses the said exclusive button, the humidity range with the highest upper limit and the lowest lower limit will be set as a target humidity range. During the humidity control operation, the dehumidifying operation in the energy saving mode having the highest target humidity and the lowest operating output and the humidifying operation in the energy saving mode having the lowest target humidity and the lowest operating output are selectively executed. .

  According to a fourth invention, in any one of the first to third inventions, the setting unit (120) periodically switches the humidity range between the plurality of humidity ranges each time the user presses. Instead, it has a setting button (124) for setting the target humidity range.

  The user selects one of a humidity range in which the target humidity for the dehumidifying operation is high and the target humidity for the humidifying operation is low, or a humidity range in which the target humidity for the dehumidifying operation is low and the target humidity for the humidifying operation is high. Set. If the humidity range is selected by the user using, for example, a cursor button, the user may be reminded that the target humidity increases or decreases each time the cursor button is pressed, which may cause misunderstanding of settings. However, in the fourth aspect of the invention, since the humidity range is selected by the user with the cyclic button that periodically switches the humidity range, misunderstanding in setting is avoided.

  In a fifth aspect based on any one of the first to fourth aspects, the dehumidifying section (33a, 33b) and the humidifying section (33a, 33b) are connected to a refrigerant circuit (30) that performs a refrigeration cycle. The adsorbent is supported by two adsorption heat exchangers (33a, 33b), and the refrigerant circuit (30) switches the refrigerant circulation direction to change the two adsorption heat exchangers (33a, 33b). And a switching mechanism (32) that alternately performs the adsorption operation and the regeneration operation of the adsorbent, and the control unit (150) is dehumidified by the adsorption heat exchanger (33a, 33b) during the adsorption operation. Humidity control operation for selectively performing a dehumidifying operation for supplying air into the room and a humidifying operation for supplying air humidified by the adsorption heat exchanger (33a, 33b) during the regeneration operation into the room .

  In the fifth aspect of the invention, a continuous humidity control operation for a long time is easily performed while alternately performing the adsorption operation and the regeneration operation between the two adsorption heat exchangers. Even during continuous operation for a long time, the user can keep the indoor humidity within the target humidity range (between the upper limit value and the lower limit value) without changing the target humidity setting.

  According to the present invention, when the humidity control operation is performed, the target humidity range is set by the user. Then, when the humidity control operation is started and the indoor humidity becomes higher than the upper limit value of the target humidity range, a dehumidifying operation is executed with the upper limit value as the target humidity, and the indoor humidity is lower than the lower limit value of the target humidity range. When the value becomes lower, the humidification operation with the lower limit as the target humidity is executed. As a result, the humidity in the room can be kept within the target humidity range (between the upper limit value and the lower limit value) without the user changing the target humidity setting during the humidity control operation, thereby improving user convenience. Can do.

  In addition, according to the second invention, as the humidity range selected by the user as the target humidity range is wider (the difference between the upper limit value and the lower limit value of the humidity range is larger), the operation output during the humidity control operation is lowered. I made it. As a result, the user can select a relatively wide humidity range to perform humidity control with an emphasis on energy saving (reduction of power consumption), or select a relatively narrow humidity range to focus on indoor comfort. You can choose whether to perform wet operation.

  According to the third aspect of the invention, the dedicated button for setting the humidity control operation in the energy saving mode having the lowest operation output of each operation is provided. As a result, the user can set the humidity control operation in the energy saving mode with one touch, for example, when taking out the house, to prevent indoor mold.

  According to the fourth invention, the user selects the humidity range with the setting button (124) which is a cyclic button. If the user selects a humidity range with, for example, a cursor button, the user is reminded that the target humidity will increase or decrease each time the cursor button is pressed, which may cause misunderstanding of settings. However, in the fourth invention, since the user selects the humidity range with a cyclic button, misunderstanding on setting can be avoided.

  Moreover, according to 5th invention, adsorption | suction operation | movement is carried out between the two adsorption | suction heat exchangers (33a, 33b) connected to the refrigerant circuit (30) by switching the circulation direction of the refrigerant | coolant of a refrigerant circuit (30). And playback operation are performed alternately. Then, dehumidifying operation to supply the air dehumidified by the adsorption heat exchanger (33a, 33b) during the adsorption operation to the room and supplying air humidified by the adsorption heat exchanger (33a, 33b) during the regeneration operation to the room Humidity control operation that selectively performs the humidifying operation is performed. This makes it possible to perform humidity control for a long time easily, and even during long-time humidity control operation, the user can set the indoor humidity within the target humidity range (upper limit value and lower limit value without changing the target humidity setting). In between).

FIG. 1 is a perspective view illustrating a casing structure of a humidity control apparatus according to an embodiment. FIG. 2 is a perspective view illustrating a frame structure of the humidity control apparatus according to the embodiment. FIG. 3 is a configuration diagram schematically illustrating the humidity control apparatus according to the embodiment. FIG. 3A is a top view of the humidity control apparatus, and FIG. 3B is an internal structure of the humidity control apparatus. FIG. 3C shows the internal structure of the humidity control apparatus from the left side, and FIG. 3D shows the internal structure of the humidity control apparatus from the right side. FIG. 4 is a configuration diagram schematically illustrating the humidity control apparatus according to the embodiment. FIG. 4A illustrates the internal structure of the humidity control apparatus as viewed from the YY cross section of FIG. FIG. 4B shows the internal structure of the humidity control apparatus as viewed from the ZZ cross section of FIG. FIG. 5 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the internal structure of the lower space. FIG. 6 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the peripheral structure of the reheat heat exchanger. FIG. 7 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the peripheral structure of the lower damper. FIG. 8 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the peripheral structure of the upper damper. FIG. 9 is a perspective view of the adsorption heat exchanger according to the embodiment in which the surrounding humidity control chamber is added using a virtual line. FIG. 10 is a perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the internal structure of the upper space. FIG. 11 is a schematic configuration diagram of a refrigerant circuit of the humidity control apparatus according to the embodiment. FIG. 12 is a schematic configuration diagram of a remote controller of the humidity control apparatus according to the embodiment. FIG. 13 is an air diagram showing humidity ranges A, B, and C that can be set as target humidity ranges in the setting unit of the remote controller according to the embodiment. FIG. 14 shows the air flow of the first operation during the dehumidifying operation (during the dehumidifying operation of the humidity adjusting operation) or the first operation during the humidifying operation (during the humidifying operation of the humidity adjusting operation) of the humidity control apparatus according to the embodiment. FIG. 4 is a view corresponding to FIG. 3. FIG. 15 shows the air flow of the first operation during the dehumidifying operation (during the dehumidifying operation of the humidity adjusting operation) or the first operation during the humidifying operation (during the humidifying operation of the humidity adjusting operation) of the humidity control apparatus according to the embodiment. FIG. 5 is a view corresponding to FIG. 4. FIG. 16 shows the air flow of the second operation during the dehumidifying operation (during the dehumidifying operation of the humidity adjusting operation) or the second operation during the humidifying operation (during the humidifying operation of the humidity adjusting operation) of the humidity control apparatus according to the embodiment. FIG. 4 is a view corresponding to FIG. 3. FIG. 17 shows the air flow of the second operation during the dehumidifying operation (during the dehumidifying operation of the humidity adjusting operation) or the second operation during the humidifying operation (during the humidifying operation of the humidity adjusting operation) of the humidity control apparatus according to the embodiment. FIG. 5 is a view corresponding to FIG. 4. FIG. 18 is a graph illustrating the passage of time in room humidity during the humidity control operation of the humidity control apparatus according to the embodiment.

  An embodiment of the present invention will be described. The embodiments described below are essentially preferable examples, and are not intended to limit the scope of the present invention, its application, or its use.

  The humidity control device (10) according to the embodiment of the present invention is a floor-type humidity control device that is installed on the floor surface of the room and adjusts the humidity of the room. The humidity control apparatus (10) is installed, for example, in a storage space of a closet in which clothes and the like are stored.

  The configuration of the humidity control apparatus (10) will be described with reference to the drawings. In the following description, “up”, “down”, “right”, “left”, “front”, and “rear” are indicated in principle by referring to the humidity control apparatus (10) shown in FIG. It is based on the case. 3 and 4 schematically show the humidity control device (10). FIG. 3 (A) shows the upper surface of the humidity control device (10), and FIG. 3 (B) shows the humidity control device. FIG. 3 (C) shows the internal structure on the left side of the humidity control device (10), and FIG. 3 (D) shows the internal structure on the right side of the humidity control device. 4A shows the internal structure of the humidity control apparatus of FIG. 3A as viewed from the YY cross section, and FIG. 4B shows the humidity control apparatus of FIG. 4A. The internal structure is viewed from the ZZ cross section.

<Case structure>
As shown in FIG. 1, the humidity control apparatus (10) includes a vertically long rectangular parallelepiped box-shaped casing (11). The casing (11) includes a rectangular plate-like bottom plate (12) and a top plate (13), and four rectangular plate-like panels (14, 14) corresponding to the four sides of the bottom plate (12) and the top plate (13). 15,16,17). These panels (14,15,16,17) consist of a front panel (14) on the front side, a rear panel (15) on the rear side, a right side panel (16) on the right side, and a left side panel on the left side ( 17). In the casing (11), the bottom plate (12), the top plate (13), the rear panel (15), the right side panel (16), and the left side panel (17) have a casing body (11a ). The front panel (14) is configured to be detachable from the casing body (11a) via a fastening member such as a screw. The casing (11) is installed such that the rear panel (15) is in contact with the indoor wall.

  The front panel (14) includes a lower panel (14a) that covers the lower space (S1) of the casing (11), an upper panel (14b) that covers the upper space (S3) of the casing (11), and a casing (11) And an intermediate panel (14c) covering the intermediate space (S2). Further, a filter maintenance panel (14d) is provided at the lower left corner of the lower panel (14a). In the front panel (14), these panels (14a, 14b, 14c, 14d) are configured to be individually removable.

  Four duct connection ports (18) are attached to the top plate (13). Specifically, the top plate (13) has an air supply connection port (18a) on the front right side, an exhaust connection port (18b) on the rear right side, and an outside air connection port (18c) on the rear left side. The inside air connection port (18d) is provided on the front left side. The air supply connection port (18a) and the indoor air connection port (18d) communicate with the indoor space via the duct, respectively, and the exhaust connection port (18b) and the outdoor air connection port (18c) communicate with the outdoor space via the duct, respectively. Communicate. That is, in the humidity control apparatus (10), the air supply connection port (18a) and the indoor air connection port (18d) connected to the indoor space are arranged in a concentrated manner on the front side of the casing (11), and are connected to the outdoor space. (18b) and the outside air connection port (18c) are collectively arranged on the rear side of the casing (11). Outdoor air (OA) is sucked into the outdoor air connection port (18c), and indoor air (RA) is sucked into the indoor air connection port (18d). Supply air (SA) is blown into the room from the air supply connection port (18a), and exhaust air (EA) is blown out of the room through the exhaust connection port (18b).

<Frame structure>
As shown in FIG. 2, four vertical frames (support members) (21) corresponding to the four corners of the bottom plate (12) are provided inside the casing (11). These vertical frames (21) include a first vertical frame (21a) on the front right side, a second vertical frame (21b) on the rear right side, a third vertical frame (21c) on the rear left side, and a left side on the front side. It is composed of a fourth vertical frame (21d). Each vertical frame (21) extends vertically to a position slightly above the middle portion in the height direction of the casing (11). That is, in the casing (11), there is no vertical frame directly connected to the bottom plate (12) between the top plate (13) and the upper end of each vertical frame (21).

  Four horizontal frames (22) (beam members) extending in the horizontal direction are bridged on top of each vertical frame (21). These horizontal frames (22) include a first horizontal frame (22a) between a first vertical frame (21a) and a second vertical frame (21b), a second vertical frame (21b), and a third vertical frame ( 21c), a second horizontal frame (22b), a third vertical frame (21c), a third horizontal frame (22c) between the fourth vertical frame (21d), and a fourth vertical frame (21d). And a fourth horizontal frame (22d) between the first vertical frame (21a). The second, third, and fourth horizontal frames (22b, 22c, 22d) are connected to the upper ends of the corresponding vertical frames (21). On the other hand, the first horizontal frame (22a) is connected to a portion slightly lower than the upper ends of the first and second vertical frames (21a, 21b).

  Three intermediate frames (23) extending horizontally are provided on the lower side of the horizontal frame (22). The intermediate frame (23) includes a first intermediate frame (23a) formed below the first horizontal frame (22a) and a second intermediate frame formed below the second horizontal frame (22b). (23b) and a third intermediate frame (23c) formed below the third horizontal frame (22c).

  The vertical frame (21), the horizontal frame (22), and the intermediate frame (23) are heavy components that are relatively heavy among the components of the humidity control device (10). ) And the adsorption heat exchanger (33a, 33b)) act to constitute a support member for supporting them.

<Inside space of casing>
As shown in FIG. 2, the inside of the casing (11) includes a lower space (S1) formed on the back side of the lower panel (14a) and an intermediate space (S2) formed on the back side of the intermediate panel (14c). ) And the upper space (S3) formed on the back side of the upper panel (14b).

<Components in the lower space>
As shown in FIGS. 5 and 6, a lower partition member (41) is installed in the lower space (S1) along the left side panel (17). The lower partition member (41) is made of a resin material such as polystyrene, and is formed in a frame shape in which the upper side and the lower side are opened. The lower partition member (41) includes a lower partition (41a) that divides the lower space (S1) left and right, and a small-diameter cylindrical portion having a substantially rectangular cross section disposed adjacent to the third vertical frame (21c). 41b) and a large-diameter cylindrical portion (41c) having a substantially rectangular cross section disposed adjacent to the fourth vertical frame (21d). An outside air inflow path (61) is defined inside the small diameter cylindrical portion (41b). A reheat chamber (63) is defined inside the large diameter cylindrical portion (41c). The outside air inflow channel (61) and the reheat chamber (63) communicate with each other through the communication port (62) (see FIG. 6).

  The reheat chamber (63) is provided with an upper support plate (41d) formed integrally with the lower partition member (41). The upper support plate (41d) is continuous with the left inner wall of the large-diameter cylindrical portion (41c) and is supported in a horizontal state so as to be parallel to the bottom plate (12). In the reheat chamber (63), a lower outside air flow path (63a) continuous to the communication port (62) is formed below the upper support plate (41d), and a lower outside air flow path (upper side of the upper support plate (41d) ( An upper outside air flow path (63b) continuous with 63a) is formed (see FIGS. 3B and 6). That is, in the reheat chamber (63), the vertical cross section of the air from the inflow side of the lower outside air flow path (63a) to the outflow side of the upper outside air flow path (63b) is substantially U-shaped (U-shaped). A flow path is formed.

  As shown in FIG. 6 and the like, the lower outside air flow path (63a) is provided with an insect filter (26), a pleat filter (27), and a reheat unit (28) in order from the upstream side to the downstream side. It is done.

  The insect filter (26) is a net-like member that captures insects and relatively large dust in the outdoor air. The pleated filter (27) is an air cleaning filter having finer eyes than the insect filter (26), and traps relatively small dust in the outdoor air. The lower partition member (41) is provided with a maintenance lid (41e) on the back side of the filter maintenance panel (14d) described above (see FIG. 5). The maintenance lid (41e) is configured to freely open and close the maintenance ports of the insect removing filter (26) and the pleat filter (27). That is, when the filter maintenance panel (14d) is removed and then the maintenance lid (41e) is opened, the front ends of the insect filter (26) and the pleat filter (27) are exposed to the outside of the casing body (11a).

  The reheat unit (28) has a frame (29) and a reheat heat exchanger (35) fixed inside the frame (29). The frame (29) includes a pair of side stays (29a) and a frame body (29b) that is sandwiched between the pair of side stays (29a) so that the inner wall faces obliquely downward. The frame body (29b) has an obliquely inclined opening surface (29c), and the reheat heat exchanger (35) is held along the opening surface (29c). A reheat heat exchanger (35) comprises the heating heat exchanger which heats outdoor air with a refrigerant | coolant.

  As shown in FIG. 5, in the lower space (S1), the machine room (60) is partitioned in a substantially half on the right side (outside of the lower partition member (41)). In the machine room (60), an electrical component box (90) is installed on the back side of the front panel (14). The electrical component box (90) accommodates electrical components such as a printed circuit board for a power supply circuit of a motor of the compressor (31) and a reactor electrically connected to the circuit on the printed circuit board. In the machine room (60), a compressor (31) and a four-way selector valve (32) are installed on the back side of the electrical component box (90). That is, when the lower panel (14a) of the front panel (14) is removed, the electrical component box (90) is exposed to the outside of the casing body (11a). Further, when the electrical component box (90) is taken out, the compressor (31) and the four-way selector valve (32) are exposed to the outside of the casing body (11a).

<Intermediate space>
In the intermediate space (S2), a first intermediate partition member (43), a second intermediate partition member (44), and a third intermediate partition member (47) are provided in order from the lower side to the upper side. These intermediate partition members (43, 44, 47) are all resin members such as polystyrene molded integrally.

  As shown in FIG. 7, the first intermediate partition member (43) closes the upper open portion of the machine room (60). On the upper surface of the first intermediate partition member (43), a frame portion (43a) protruding in a rectangular shape and a pair of concave grooves (43c, 43c) formed on the left and right outer sides of the frame portion (43a) And are formed. The frame portion (43a) is formed across the first intermediate partition member (43). A water receiving portion (43b) for receiving condensed water generated in the humidity control chamber (66a, 66b) is formed inside the frame portion (43a). The water receiving portion (43b) is formed across the first intermediate partition member (43). The bottom surface of the water receiving portion (43b) is inclined so as to face slightly upward from the horizontal plane. That is, the water accumulated in the water receiving portion (43b) is guided forward along the inclined bottom surface. The concave grooves (43c, 43c) extend in the front-rear direction along the left and right side walls of the frame portion (43a).

  As shown in FIG. 8, the second intermediate partition member (44) is supported by the first intermediate frame (23a) and the second intermediate frame (23b) while being predetermined above the first intermediate partition member (43). Are arranged at intervals. In the second intermediate partition member (44), concave grooves (44a, 44a) extending in the front-rear direction are formed at positions corresponding to the concave grooves (43c, 43c) of the first intermediate partition member (43).

  On the other hand, as shown in FIG. 7, between the first intermediate partition member (43) and the second intermediate partition member (44), there are two lower damper partition plates (45) and one horizontal partition. A plate (46) is formed. The two lower damper partition plates (45) and the one horizontal partition plate (46) are arranged vertically so that the plate thickness directions thereof are horizontal. The two lower damper partition plates (45) are composed of an outside air damper partition plate (45a) and an exhaust damper partition plate (45b).

  The lower part of the outside air damper partition plate (45a) is fitted into the left groove (43c) of the first intermediate partition member (43), and the upper end of the outside air damper partition plate (45a) is the left groove of the second intermediate partition member (44). (44a). The lower end of the exhaust damper partition member (45b) is fitted into the right groove (43c) of the first intermediate partition member (43), and the upper end of the exhaust damper partition member (45b) is the left groove of the second intermediate partition member (44). (44a). The front end of the lower damper partition (45) is located on the back side of the front panel (14). That is, when the front panel (14) is removed, the front end of the lower damper partition (45) is exposed to the outside of the casing body (11a). In a state where the front panel (14) is removed, the lower damper partition plate (45) can be pulled back and forth along the respective concave grooves (43c, 44a).

  As shown in FIGS. 3, 7, and 8, an intermediate outside air flow path (64) communicating with the reheat chamber (63) is formed on the left side of the outside air damper partition plate (45a) so as to extend back and forth. The outside air damper partition plate (45a) is provided with a first damper (D1) on the front side and a second damper (D2) on the rear side. On the right side of the exhaust damper partition plate (45b), an intermediate exhaust passage (65) is formed extending forward and backward. The exhaust damper partition plate (45b) is provided with a third damper (D3) on the front side and a fourth damper (D4) on the rear side.

  As shown in FIG. 7 and FIG. 9, the space between the outside air damper partition plate (45a) and the exhaust damper partition plate (45b) is divided into two humidity control chambers (66) by the horizontal partition plate (46). It has been. In these humidity control chambers (66), the front space forms a first humidity control chamber (66a), and the rear space forms a second humidity control chamber (66b). The first humidity control chamber (66a) is formed at a position corresponding to the first damper (D1) and the third damper (D3), and the second humidity control chamber (66b) is the second damper (D2) and the fourth damper. It is formed at a position corresponding to the damper (D4). The first humidity control chamber (66a) and the second humidity control chamber (66b) are formed over the inside of the second intermediate partition member (44).

  The two adsorption heat exchangers (33a, 33b) are a first adsorption heat exchanger (33a) housed in the first humidity control chamber (66a) and a second housed in the second humidity control chamber (66b). And an adsorption heat exchanger (33b). These two adsorption heat exchangers (33a, 33b) are those in which an adsorbent is supported on the surface of a cross fin type fin-and-tube heat exchanger body (34). Part.

  The heat exchanger body (34) of each adsorption heat exchanger (33a, 33b) includes a copper heat transfer tube (34a) and a number of aluminum fins (34b). The heat transfer tube (34a) has a straight tube portion and a U-shaped portion formed alternately and continuously in a meandering shape. The fin (34b) is formed in a vertically long plate shape, and the straight pipe portion of the heat transfer tube (34a) penetrates in the thickness direction. That is, a large number of fins (34b) are arranged in parallel along the axial direction of the straight tube portion of the heat transfer tube (34a).

  The adsorbent is supported on the surfaces of a large number of fins (34b) and heat transfer tubes (34a). At the interface between the adsorbent and air, moisture in the air is adsorbed or adsorbed moisture is desorbed into the air (adsorbent is regenerated). As the adsorbent, zeolite, silica gel, activated carbon, an organic polymer material having a hydrophilic functional group, or the like is used. Moreover, as an adsorbent, you may use the material (what is called a sorbent) which has the function not only to adsorb | suck moisture but to absorb moisture.

  Each adsorption heat exchanger (33a, 33b) is held in the storage chamber (67) so that the short side of the fin (34b) is vertical and the U-shaped portion of the heat transfer tube (34a) is located on both the left and right sides. The

  As shown in FIG. 8, the third intermediate partition member (47) is laminated on the upper side of the second intermediate partition member (44). A pair of wide grooves (47a, 47a) wide on the left and right are formed on the upper surface of the third intermediate partition member (47). A pair of upper damper partition plates (48) are fitted in the thickness direction in these wide grooves (47a). These upper damper partition plates (48) are arranged horizontally so that their thickness directions are vertical. The front end portion of the upper damper partition plate (48) is located on the back side of the front panel (14). That is, when the front panel (14) is removed, the front end portion of the upper damper partition (48) is exposed to the outside of the casing body (11a). When the front panel (14) is removed, the upper damper partition plate (48) can be pulled back and forth along the wide grooves (47a).

  The pair of upper damper partition plates (48) includes a left-side internal air damper partition plate (48a) and a right-side air supply damper partition plate (48b). The inside air damper partition plate (48a) is provided with a fifth damper (D5) on the front side and a sixth damper (D6) on the rear side. The supply damper partition plate (48b) is provided with a seventh damper (D7) on the front side and an eighth damper (D8) on the rear side. The fifth damper (D5) and the seventh damper (D7) are formed at positions corresponding to the first humidity control chamber (66a), and the sixth damper (D6) and the eighth damper (D8) are the second humidity control chamber. It is formed at a position corresponding to the chamber (66b).

  At the corners on the right rear side of the second intermediate partition member (44) and the third intermediate partition member (47), laterally long through holes extending in the front-rear direction are formed, and these through holes are continuously connected to the exhaust communication flow. Constructs a road (68).

  An outside air duct portion (53) of the first upper partition member (51) extends vertically in a corner on the left rear side of the intermediate space (S2) (see FIGS. 8 and 10). The lower end of the outside air duct part (53) is continuous with the large-diameter cylindrical part (41c) of the lower partition member (41). In the intermediate space (S2), a spacer member (24) is provided on the front side of the first humidity control chamber (66a). The spacer member (24) is interposed between the first intermediate partition member (43) and the first intermediate frame (23a) so as to ensure a predetermined interval.

<Upper space>
As shown in FIG. 10, a first upper partition member (51), a second upper partition member (54), and a third upper partition member (80) are provided in the upper space (S3). These partition members (51, 54, 80) are all polystyrene resin materials molded integrally. In the upper space (S3), the four upper chambers (19) are partitioned by these partition members (51, 54, 80). These upper chambers (19) consist of a front right-side indoor air supply chamber (19a), a rear right-side outdoor exhaust chamber (19b), a rear left-side outdoor air suction chamber (19c), and a front left-side indoor air suction Chamber (19d). The indoor air supply chamber (19a) communicates with the air supply connection port (18a), the outdoor exhaust chamber (19b) communicates with the exhaust connection port (18b), and the outdoor air suction chamber (19c) communicates with the external air connection port (18c). The room air suction chamber (19d) communicates with the room air connection port (18d). An air supply fan unit (84) is provided in the indoor air supply chamber (19a), and an exhaust fan unit (87) is provided in the outdoor exhaust chamber (19b).

  The first upper partition member (51) is provided on the left side of the upper space (S3). The first upper partition member (51) extends along the left side wall (52) formed across the front and rear ends of the casing (11) along the left side panel (17), and along the third vertical frame (21c). A cylindrical outside air duct portion (53) extending vertically. The outside air duct part (53) is arranged in the upper space (S3) and continues from the lower end of the large diameter duct part (53a) and the large diameter duct part (53a) that divides the outside air suction chamber (19c) inside. And a small-diameter duct portion (53b) that is disposed in the intermediate space (S2) and has a smaller diameter than the large-diameter duct portion (53a).

  In the upper space (S3), an outside air suction chamber (19c) is formed inside the large diameter duct portion (53a), and an inside air suction chamber (19d) is formed outside the large diameter duct portion (53a). In the upper space (S3), the upper inside air flow path (69) is partitioned from the outer lower side of the large diameter duct portion (53a) to the front panel (14). The upper end of the upper inside air channel (69) communicates with the inside air suction chamber (19d). Further, the fifth damper (D5) and the seventh damper (D7) of the internal air damper partition plate (48a) face the upper internal air flow path (69). A duct internal flow path (71) connected to the outside air inflow path (61) is formed inside the small diameter duct portion (53b) (see FIG. 3B).

  The second upper partition member (54) includes a right side wall portion (55) formed across the front and rear ends of the casing (11) along the right side panel (16) of the casing (11), and an upper space (S3). And a rear side wall portion (57) continuous to each rear end portion of the right side wall portion (55) and the central partition portion (56).

  A pedestal (55a) is formed inside the right side wall (55). The pedestal portion (55a) has a longitudinal section formed in an L shape, and extends back and forth from the rear side wall portion (57) to the front panel (14) side. A first installation surface (55c) on which the fan units (84, 87) and the third upper partition member (80) are installed so as to be able to be guided back and forth is formed on the upper end surface of the pedestal portion (55a).

  A columnar first contact portion (55b) extending in the vertical direction is formed at an intermediate portion in the front-rear direction of the right side wall portion (55). The rear end portion of the third upper partition member (80) contacts the front end of the first contact portion (55b). Further, a sealing material (not shown) is formed on the contact surface with respect to the third upper partition member (80) in the first contact portion (55b).

  The central partition (56) includes a vertical first vertical wall (56a), a horizontal wall (56b) bent horizontally from the lower end of the first vertical wall (56a), and a vertical from the right end of the horizontal wall (56b). And a bent second vertical wall (56c). A second installation surface (56d) on which the fan units (84, 87) and the third upper partition member (80) are installed so as to be guided back and forth is formed on the upper end surface of the central partition (56). .

  The central partition (56) divides the outside air suction chamber (19c) and the inside air suction chamber (19d) arranged in the front-rear direction from the outside exhaust chamber (19b) and the indoor air supply chamber (19a) arranged in the front-rear direction. In addition, a main partition extending in the front and rear direction of the casing (11) is formed. Since the central partition (56) is formed integrally with the right side wall (55) and the rear side wall (57) along the casing (11), the central partition (56) is independent of other members. You can't just remove it.

  A columnar second abutting portion (56e) extending vertically is formed at an intermediate portion in the front-rear direction of the central partition portion (56). The rear end portion of the third upper partition member (80) contacts the front end of the second contact portion (56e). Further, a sealing material (not shown) is formed on the contact surface with respect to the third upper partition member (80) at the second contact portion (56e).

  In the second upper partition member (54), a corner between the right side wall (55) and the rear side wall (57) and a corner between the central partition (56) and the rear side wall (57). In addition, an insertion part (58) is formed respectively. Reinforcing ribs (75) are inserted through the respective insertion portions (58). The upper end of each reinforcing rib (75) is fixed to the top plate (13) of the casing (11). These reinforcing ribs (75) constitute an attachment member to which the exhaust fan unit (87) is fixed and supported.

  The second upper partition member (54) is integrally formed with a horizontal partition portion (59) below the exhaust fan unit (87) (FIG. 4A). In the upper space (S3), an outdoor exhaust chamber (19b) is defined on the upper side of the horizontal partition (59), and an upper air supply channel (from the lower side of the horizontal partition (59) to the front panel (14) ( 70) is sectioned. The outdoor exhaust chamber (19b) communicates with the exhaust communication channel (68) shown in FIG. The upper end of the upper air supply channel (70) communicates with the indoor air supply chamber (19a). In addition, the sixth damper (D6) and the eighth damper (D8) of the supply damper partition plate (48b) face the upper supply passage (70).

  As shown in FIG. 10, the third upper partition member (80) includes a first side plate portion (81) formed along the right side wall portion (55) of the second upper partition member (54), and a second upper portion. A second side plate (82) formed along the central partition (56) of the partition member (54), a rear end of the first side plate (81), and a rear end of the second side plate (82) And an intermediate side plate portion (83) formed over the entire area. That is, the cross-sectional shape of the third upper partition member (80) is formed in a substantially U-shape (U-shape) having an open portion on the front side.

  In the third upper partition member (80), the lower ends of the side plate portions (81, 82) are respectively installed on the installation surfaces (55c, 56d) of the second upper partition member (54), and the intermediate side plate portion (83) The left and right end portions of the second upper partition member (54) are disposed so as to abut on the abutment portions (55b, 56e). When the third upper partition member (80) is arranged in this way, the space between the right side wall portion (55) and the central partition portion (56) is divided into two spaces (ie, the indoor air supply chamber (19a)). And an outdoor exhaust chamber (19b)). The third upper partition member (80) constitutes an air supply / exhaust partition portion that is detachably attached to the casing (11) so as to partition the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) forward and backward.

  The air supply fan unit (84) includes an air supply fan (85) and an air supply side mounting plate (86) for supporting the air supply fan (85). The air supply fan (85) is a centrifugal multi-blade fan (so-called sirocco fan). The air supply side mounting plate (86) includes a main body portion (86a) to which the motor of the air supply fan (85) is attached, a side plate portion (86b) formed on the left and right sides of the main body portion (86a), and a main body portion. (86a) and an upper plate part (86c) formed on the upper side. Each side plate part (86b) of the supply side mounting plate (86) is installed on each installation surface (55c, 56d) of the second upper partition member (54). Further, the right side plate portion (86b) and the upper plate portion (86c) of the supply side mounting plate (86) are connected to the above-described front panel (14) (see FIG. 1) via a fastening member such as a screw. Fixed.

  The exhaust fan unit (87) includes an exhaust fan (88) and an exhaust side mounting plate (89) for supporting the exhaust fan (88). The exhaust fan (88) is a centrifugal multi-blade fan (so-called sirocco fan). The exhaust side mounting plate (89) includes a main body portion (89a) to which the motor of the exhaust fan (88) is mounted, and side plate portions (89b) formed on the left and right sides of the main body portion (89a). . Each side plate part (89b) of the exhaust side mounting plate (89) is installed on each installation surface (55c, 56d) of the second upper partition member (54). Further, these side plate portions (89b) are fixed to the top plate (13) via the reinforcing rib (75) described above.

<Configuration of refrigerant circuit>
The humidity control apparatus (10) includes a refrigerant circuit (30) to which the above-described compressor (31) and two adsorption heat exchangers (33a, 33b) are connected. The configuration of the refrigerant circuit (30) will be described with reference to FIG.

  The refrigerant circuit (30) is a closed circuit to which refrigerant pipes are connected, and is filled with refrigerant. In the refrigerant circuit (30), the refrigerant circulates to perform a vapor compression refrigeration cycle. A compressor (31), a four-way switching valve (32), a first adsorption heat exchanger (33a), and a second adsorption heat exchanger (33b) are connected to the refrigerant circuit (30).

  The compressor (31) has a variable capacity (operating frequency) by so-called inverter control.

  The four-way switching valve (32) switches the refrigerant circulation direction in the refrigerant circuit (30) so that the adsorption operation and the regeneration operation are alternately performed between the two adsorption heat exchangers (33a, 33b). Thus, the switching mechanism of the present invention is configured. The four-way switching valve (32) has first to fourth ports and is configured to be able to switch the communication state of these ports. The first port of the four-way switching valve (32) is connected to the discharge pipe (31a) of the compressor (31), and the third port of the four-way switching valve (32) is the suction pipe (31b) of the compressor (31). Connected to. The second port of the four-way switching valve (32) is connected to the gas side end of the first adsorption heat exchanger (33a), and the fourth port of the four-way switching valve (32) is connected to the second adsorption heat exchanger (33b). ) Gas side end. The four-way switching valve (32) communicates the first port and the fourth port to communicate the second port and the third port (first state indicated by the solid line in FIG. 11), the first port and the second port. It is configured to be switchable to a state (second state indicated by a broken line in FIG. 11) in which the two ports are communicated and the third port and the fourth port are communicated.

  The refrigerant circuit (30) is provided with a one-way circuit (36) in which the refrigerant flows in one direction even when the refrigerant circulation direction is switched by the four-way switching valve (32). The one-way circuit (36) includes a bridge circuit (36a) in which four check valves (CV-1, CV-2, CV-3, CV-4) are connected in a bridge shape, and a bridge circuit (36a ), A main circuit (36b) and a reheat circuit (36c) connected in parallel are provided.

  Each check valve (CV-1, CV-2, CV-3, CV-4) of the bridge circuit (36a) allows the refrigerant to flow in the direction of the arrow in FIG. The flow of is prohibited. In the bridge circuit (36a), the liquid side end of the first adsorption heat exchanger (33a) is connected between the first check valve (C1-1) and the second check valve (CV-2), The liquid side end of the second adsorption heat exchanger (33b) is connected between the third check valve (CV-3) and the fourth check valve (CV-4). The junction of the first check valve (CV-1) and the third check valve (CV-3), and the flow divider of the second check valve (CV-2) and the fourth check valve (CV-4) The main circuit (36b) and the reheat circuit (36c) are connected in parallel with each other. A main expansion valve (37) is connected to the main circuit (36b). The reheat circuit (36c) is connected to the reheat heat exchanger (35) on the upstream side and to the reheat side expansion valve (38) on the downstream side. The main expansion valve (37) and the reheat side expansion valve (38) are electrically operated flow rate control valves whose opening degree is variable, and are constituted by, for example, electronic expansion valves.

<Controller and sensor>
As shown in FIG. 11, the humidity control apparatus (10) includes a controller (150). The controller (150) controls each operation (dehumidification operation, humidification operation, ventilation operation, humidity control operation) of the humidity control apparatus (10), and constitutes a control unit of the present invention. Specifically, the controller (150) determines the operating capacity of the compressor (31) and the opening of each expansion valve (37,38) according to the contents set in the remote controller (100) and the detection value of each sensor. It is configured to adjust and further adjust the open / close state of each damper (D1 to D8) and the operating air volume of each fan (85, 88).

  As shown in FIG. 3B, the humidity control apparatus (10) includes, as sensors, an inside air humidity sensor (91), an outside air humidity sensor (92), a first outside air temperature sensor (93), and a second sensor. And an outside air temperature sensor (94). The room air humidity sensor (91) is disposed in the upper room air flow path (69). The room air humidity sensor (91) detects the humidity (relative humidity) of the room air (RA) taken into the room air suction chamber (19d). The outside air humidity sensor (92) and the first outside air temperature sensor (93) are disposed between the filter (26, 27) and the reheat heat exchanger (35) in the lower outside air flow path (63a). The outdoor air humidity sensor (92) detects the humidity (relative humidity) of the outdoor air (OA) on the upstream side of the reheat heat exchanger (35), and the first outdoor air temperature sensor (93) is the reheat heat exchanger (35). ) Detect the temperature of the outdoor air (OA) upstream. The second outside air temperature sensor (94) is arranged on the downstream side of the reheat heat exchanger (35) in the lower outside air flow path (63a). The second outside air temperature sensor (94) detects the temperature of the outdoor air (OA) on the downstream side of the reheat heat exchanger (35).

<Remote controller>
As shown in FIG. 11, the humidity control apparatus (10) includes a remote controller (100). The remote controller (100) is a wired remote controller connected to the controller (150) via a transmission line, and transmits and receives signals to and from the controller (150) to remotely control the humidity control device (10). It is configured.

  As shown in FIG. 12, the remote controller (100) includes a liquid crystal display unit (110) and a setting unit (120).

  The liquid crystal display unit (110) displays the operating state of the humidity control device (10) and the contents set by the user, and is provided in the upper half on the front surface of the remote control (100).

  The setting unit (120) is provided in the lower half on the front surface of the remote control (100), and various setting buttons (121 to 125) operated by the user are arranged. Specifically, a donut-shaped cursor button (121) is arranged at the center of the setting unit (120), and a menu / confirm button (122) is arranged inside the cursor button (121). . Also, around the cursor button (121), there is an operation switch button (123) in the upper left, a button (124) in the lower left, a run / stop button (125) in the upper right, and a cancel button (126) in the lower right. Has been.

  The operation switching button (123) is a button for setting the operation content of the humidity control device (10), and every time the user presses, the operation content is changed to ventilation operation, dehumidification operation, humidification operation, humidity control operation. It is configured to switch periodically in order. The operation content set by the operation switching button (123) is displayed on the upper left in the liquid crystal display unit (110).

  The persistent button (124) is a button for setting a target humidity range for humidity control operation. Each time the button (124) is configured such that the user selects one of a plurality of humidity ranges and sets a target humidity range. Specifically, each time the user presses the button, the plurality of humidity ranges are displayed. It is a cyclic button that switches periodically in order.

  The plurality of humidity ranges are stored in a storage unit (not shown) inside the remote controller (100). In the present embodiment, three humidity ranges A, B, and C shown in FIG. 13 are stored in the storage unit. In the humidity range C, an upper limit value and a lower limit value are set so that the humidity range with the highest comfort is included. The humidity range B is set such that the upper limit value is higher than the humidity range C and lower than the lower limit value, and the humidity range A is set higher than the humidity range B and lower than the lower limit value.

  Of these three humidity ranges, when the humidity range A is selected as the target humidity range, “strong” is displayed at the center of the liquid crystal display unit (110), and when the humidity range B is selected, “standard” is displayed. When the humidity range C is selected, “weak” is displayed.

-Driving action-
Next, the operation of the humidity control apparatus (10) will be described in order with reference to the drawings. In the humidity control apparatus (10), a dehumidifying operation, a humidifying operation, a ventilation operation, and a humidity adjusting operation can be selected.

<Dehumidifying operation>
The dehumidifying operation is an operation for dehumidifying the room, and is mainly performed in summer when the humidity is high. In this dehumidifying operation, before the operation starts, the user depresses the operation switching button (123) of the remote control (100) to set “dehumidifying operation”, and the user presses the cursor button (121) to set the target humidity. Is set. Thereafter, when the user presses the run / stop button (125), the dehumidifying operation is started.

  In the humidity control apparatus (10) during the dehumidifying operation, the first operation and the second operation are alternately repeated at predetermined time intervals.

  First, the first operation during the dehumidifying operation will be described.

  During the first operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the first state, the reheat side expansion valve (38) is almost fully closed, and the main expansion valve ( 37) is opened at a predetermined opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) condenses (heatsinks) in the second adsorption heat exchanger (33b), passes through the bridge circuit (36a), Flows through the main circuit (36b). In the main circuit (36b), the refrigerant is decompressed by the main expansion valve (37). The refrigerant decompressed by the main expansion valve (37) passes through the bridge circuit (36a), evaporates in the first adsorption heat exchanger (33a), and is sucked into the compressor (31). Thus, in the first operation, the first adsorption heat exchanger (33a) functions as an evaporator, and the second adsorption heat exchanger (33b) functions as a condenser.

  As shown in FIGS. 14 and 15, the air supply fan (85) and the exhaust fan (88) operate during the first operation. Then, the first damper (D1), the fourth damper (D4), the sixth damper (D6), and the seventh damper (D7) are opened, and the second damper (D2), the third damper (D3), 5 damper (D5) and 8th damper (D8) will be in a closed state.

  When the air supply fan (85) is operated, outdoor air (OA) is taken into the outdoor air suction chamber (19c) via the duct, and flows in the duct flow path (71) and the outdoor air inflow path (61) in this order. It flows into the lower outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the dehumidifying operation, since no refrigerant is supplied to the reheat circuit (36c), air is not heated in the reheat heat exchanger (35).

  The air that has passed through the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the first damper (D1) in this order, and then passes through the first adsorption heat exchanger (33a). To do. In the first adsorption heat exchanger (33a), moisture in the air is adsorbed by the adsorbent, and the air is dehumidified. That is, an adsorption operation is performed in the first adsorption heat exchanger (33a). After that, the air dehumidified by the first adsorption heat exchanger (33a) flows in order through the seventh damper (D7), the upper air supply channel (70), and the indoor air supply chamber (19a), and passes through the duct to the room. Supplied to the space as supply air (SA).

  On the other hand, when the exhaust fan (88) is operated, the room air (RA) is taken into the room air suction chamber (19d) via the duct on the room side, and the upper room air flow path (69) and the sixth damper (D6) are connected. It flows in order and passes through the second adsorption heat exchanger (33b). In the second adsorption heat exchanger (33b), moisture is desorbed from the adsorbent into the air, and the adsorbent is regenerated. That is, the regeneration operation is performed in the second adsorption heat exchanger (33b). Thereafter, the air used for regeneration of the adsorbent of the second adsorption heat exchanger (33b) is transferred to the fourth damper (D4), the intermediate exhaust passage (65), the exhaust communication passage (68), the outdoor exhaust chamber ( 19b) in order, and is discharged as exhaust air (EA) to the outdoor space via the duct.

  Next, the second operation during the dehumidifying operation will be described.

  During the second operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the second state, and the reheat side expansion valve (38) is almost fully closed, and the main expansion valve ( 37) is opened at a predetermined opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) condenses (heatsinks) in the first adsorption heat exchanger (33a), passes through the bridge circuit (36a), Flows through the main circuit (36b). In the main circuit (36b), the refrigerant is decompressed by the main expansion valve (37). The refrigerant decompressed by the main expansion valve (37) passes through the bridge circuit (36a), evaporates by the second adsorption heat exchanger (33b), and is sucked into the compressor (31). Thus, in the second operation, the first adsorption heat exchanger (33a) functions as a condenser, and the second adsorption heat exchanger (33b) functions as an evaporator.

  As shown in FIGS. 16 and 17, the air supply fan (85) and the exhaust fan (88) operate during the second operation. Then, the second damper (D2), the third damper (D3), the fifth damper (D5), and the eighth damper (D8) are opened, and the first damper (D1), the fourth damper (D4), 6 damper (D6) and 7th damper (D7) will be in a closed state.

  When the air supply fan (85) is operated, outdoor air (OA) is taken into the outdoor air suction chamber (19c) via the duct, and flows in the duct flow path (71) and the outdoor air inflow path (61) in this order. It flows into the lower outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the dehumidifying operation, since no refrigerant is supplied to the reheat circuit (36c), air is not heated in the reheat heat exchanger (35).

  The air that has passed through the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the second damper (D2) in this order, and then passes through the second adsorption heat exchanger (33b). To do. In the second adsorption heat exchanger (33b), moisture in the air is adsorbed by the adsorbent, and the air is dehumidified. That is, the adsorption operation is performed in the second adsorption heat exchanger (33b). After that, the air dehumidified by the second adsorption heat exchanger (33b) flows through the eighth damper (D8), the upper air supply channel (70), the indoor air supply chamber (19a) in this order, and passes through the duct to the room. Supplied to the space as supply air (SA).

  On the other hand, when the exhaust fan (88) is operated, the room air (RA) is taken into the room air suction chamber (19d) via the duct on the room side, and the upper room air flow path (69) and the fifth damper (D5) are connected. It flows in order and passes through the first adsorption heat exchanger (33a). In the first adsorption heat exchanger (33a), moisture is desorbed from the adsorbent into the air, and the adsorbent is regenerated. That is, the regeneration operation is performed in the first adsorption heat exchanger (33a). Thereafter, the air used for regeneration of the adsorbent in the first adsorption heat exchanger (33a) passes through the third damper (D3), and passes through the intermediate exhaust passage (65), the exhaust communication passage (68), and the outdoor. It flows through the exhaust chamber (19b) in order, and is discharged as exhaust air (EA) to the outdoor space via the duct.

<Humidification operation>
The humidification operation is an operation for humidifying the room, and is mainly performed in winter when the humidity is low. In this humidification operation, before the operation starts, the user presses the operation switching button (123) of the remote controller (100) to set “humidification operation”, and further, the user presses the cursor button (121) to set the target humidity. Is set. Thereafter, when the user presses the operation / stop button (125), the humidification operation is started.

  In the humidity control apparatus (10) during the humidifying operation, the first operation and the second operation are alternately repeated at predetermined time intervals.

  First, the first operation during the humidifying operation will be described.

  During the first operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the second state, the main expansion valve (37) is closed, and the reheat side expansion valve (38) is predetermined. It is opened at the opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) condenses (heatsinks) in the first adsorption heat exchanger (33a), passes through the bridge circuit (36a), It flows through the reheat circuit (36c). In the reheat circuit (36c), the high-pressure refrigerant in a gas-liquid two-phase state flows through the reheat heat exchanger (35), and the refrigerant radiates heat to the air (outdoor air (OA)). The refrigerant radiated by the reheat heat exchanger (35) is decompressed by the reheat side expansion valve (38). The refrigerant decompressed by the reheat side expansion valve (38) passes through the bridge circuit (36a), evaporates in the second adsorption heat exchanger (33b), and is sucked into the compressor (31). Thus, in the first operation, the first adsorption heat exchanger (33a) functions as a condenser, and the second adsorption heat exchanger (33b) functions as an evaporator.

  As shown in FIGS. 14 and 15, the air supply fan (85) and the exhaust fan (88) operate during the first operation. Then, the first damper (D1), the fourth damper (D4), the sixth damper (D6), and the seventh damper (D7) are opened, and the second damper (D2), the third damper (D3), 5 damper (D5) and 8th damper (D8) will be in a closed state.

  When the air supply fan (85) is operated, outdoor air (OA) is taken into the outdoor air suction chamber (19c) via the duct, and flows in the duct flow path (71) and the outdoor air inflow path (61) in this order. It flows into the lower outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the humidification operation, a refrigerant is appropriately supplied to the reheat heat exchanger (35), and the outdoor air (OA) is heated by the reheat heat exchanger (35).

  The air heated by the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the first damper (D1) in this order, and passes through the first adsorption heat exchanger (33a). pass. In the first adsorption heat exchanger (33a), air is humidified while moisture is desorbed from the adsorbent into the air to regenerate the adsorbent. That is, the regeneration operation is performed in the first adsorption heat exchanger (33a). After that, the air humidified by the first adsorption heat exchanger (33a) flows in order through the seventh damper (D7), the upper air supply channel (70), and the indoor air supply chamber (19a), and passes through the duct to the room. Supplied to the space as supply air (SA).

  On the other hand, when the exhaust fan (88) is operated, the room air (RA) is taken into the room air suction chamber (19d) via the duct on the room side, and the upper room air flow path (69) and the sixth damper (D6) are connected. It flows in order and passes through the second adsorption heat exchanger (33b). In the second adsorption heat exchanger (33b), moisture in the air is adsorbed by the adsorbent. That is, the adsorption operation is performed in the second adsorption heat exchanger (33b). After that, the air given moisture to the adsorbent of the second adsorption heat exchanger (33b) is the fourth damper (D4), the intermediate exhaust passage (65), the exhaust communication passage (68), the outdoor exhaust chamber (19b). ) In order, and is discharged as exhaust air (EA) to the outdoor space via the duct.

  Next, the second operation during the humidifying operation will be described.

  During the second operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the first state, the main expansion valve (37) is closed, and the reheat side expansion valve (38) is predetermined. It is opened at the opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) condenses (heatsinks) in the second adsorption heat exchanger (33b), passes through the bridge circuit (36a), It flows through the reheat circuit (36c). In the reheat circuit (36c), the high-pressure refrigerant in a gas-liquid two-phase state flows through the reheat heat exchanger (35), and the refrigerant radiates heat to the air (outdoor air (OA)). The refrigerant radiated by the reheat heat exchanger (35) is decompressed by the reheat side expansion valve (38). The refrigerant decompressed by the reheat side expansion valve (38) passes through the bridge circuit (36a), evaporates by the first adsorption heat exchanger (33a), and is sucked into the compressor (31). Thus, in the second operation, the first adsorption heat exchanger (33a) functions as an evaporator, and the second adsorption heat exchanger (33b) functions as a condenser.

  As shown in FIGS. 16 and 17, the air supply fan (85) and the exhaust fan (88) operate during the second operation. Then, the second damper (D2), the third damper (D3), the fifth damper (D5), and the eighth damper (D8) are opened, and the first damper (D1), the fourth damper (D4), 6 damper (D6) and 7th damper (D7) will be in a closed state.

  When the air supply fan (85) is operated, outdoor air (OA) is taken into the outdoor air suction chamber (19c) via the duct, and flows in the duct flow path (71) and the outdoor air inflow path (61) in this order. It flows into the lower outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the humidification operation, a refrigerant is appropriately supplied to the reheat heat exchanger (35), and the outdoor air (OA) is heated by the reheat heat exchanger (35).

  The air heated by the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the second damper (D2) in this order, and passes through the second adsorption heat exchanger (33b). pass. In the second adsorption heat exchanger (33b), air is humidified while moisture is desorbed from the adsorbent into the air to regenerate the adsorbent. That is, the regeneration operation is performed in the second adsorption heat exchanger (33b). Thereafter, the air humidified by the second adsorption heat exchanger (33b) flows through the eighth damper (D8), the upper air supply channel (70), and the indoor air supply chamber (19a) in this order, and passes through the duct to the room. Supplied to the space as supply air (SA).

  On the other hand, when the exhaust fan (88) is operated, the room air (RA) is taken into the room air suction chamber (19d) via the duct on the room side, and the upper room air flow path (69) and the fifth damper (D5) are connected. It flows in order and passes through the first adsorption heat exchanger (33a). In the first adsorption heat exchanger (33a), moisture in the air is adsorbed by the adsorbent. That is, an adsorption operation is performed in the first adsorption heat exchanger (33a). Thereafter, the air that has given moisture to the adsorbent of the first adsorption heat exchanger (33a) is the third damper (D3), the intermediate exhaust passage (65), the exhaust communication passage (68), the outdoor exhaust chamber (19b). ) In order, and is discharged as exhaust air (EA) to the outdoor space via the duct.

<Ventilation operation>
In the ventilation operation, outdoor air (OA) is supplied to the room as it is, and at the same time, the indoor air (RA) is discharged as it is to ventilate the room. In this ventilation operation, “ventilation operation” is set by the user pressing the operation switching button (123) of the remote controller (100) before the operation is started. Thereafter, when the user presses the operation / stop button (125), the ventilation operation is started.

  In the ventilation operation, the first operation and the second operation are alternately repeated at predetermined time intervals while the compressor (53) of the refrigerant circuit (50) is stopped.

  In the first operation of the ventilation operation, an air flow similar to the first operation of the dehumidification operation and the first operation of the humidification operation is formed. In the second operation of the ventilation operation, the second operation of the dehumidification operation and the second operation of the humidification operation are performed. An air flow similar to operation is formed. During each operation, the outdoor air (OA) taken into the outside air suction chamber (19c) via the duct passes through each part in the humidity control device (10), and then from the indoor air supply chamber (19a). Supplied to the indoor space as supply air (SA). On the other hand, the indoor air (RA) taken into the indoor air suction chamber (19d) via the duct on the indoor side passes through each part in the humidity control device (10) and then passes from the outdoor exhaust chamber (19b) to the outdoor space. Discharged as exhaust air (EA).

<Humidity control operation>
The humidity control operation is an operation that selectively executes a dehumidifying operation for dehumidifying the room and a humidifying operation for humidifying the room. In this humidity control operation, “humidity control operation” is set by the user pressing the operation switching button (123) of the remote controller (100) before the operation is started. Furthermore, the target humidity range is set by the user pressing the button (124) each time and selecting one from a plurality of (in this case, three) humidity ranges. Thereafter, when the user presses the run / stop button (125), the humidity control operation is started.

  As shown in FIG. 18, in the humidity control operation, each operation (dehumidifying operation and humidifying operation) is stopped while the indoor humidity is lower than the upper limit value of the target humidity range and higher than the lower limit value. And when indoor humidity becomes higher than the upper limit of a target humidity range, dehumidification operation | movement will be started. In the dehumidifying operation, the same operation as the dehumidifying operation is performed so that the upper limit value of the target humidity range becomes the target humidity, and the indoor humidity is maintained at the upper limit value (target humidity) during the dehumidifying operation.

  Further, in the humidity control operation, when the indoor humidity becomes lower than the lower limit value of the target humidity range, the humidifying operation is started. In the humidification operation, an operation similar to the humidification operation is performed so that the lower limit value of the target humidity range becomes the target humidity, and the indoor humidity is maintained at the lower limit value (target humidity) during the humidification operation.

  Thus, in the humidity control operation, the dehumidifying operation and the humidifying operation are selectively performed, and the indoor humidity is controlled within the target humidity range (between the upper limit value and the lower limit value).

  For example, when the widest humidity range A (the difference between the upper limit value and the lower limit value is the largest) among the three humidity ranges shown in FIG. 13 is set as the target humidity range, the liquid crystal display unit (110) displays “ "Low" is displayed, and the humidity control operation with a weak operation output (for example, the output of the compressor (31)) is performed.

  Specifically, in the humidity control operation in which the humidity range A is set, the target humidity for the dehumidifying operation is higher than when other humidity ranges are set. Therefore, during the dehumidifying operation, the difference between the indoor humidity and the target humidity is reduced, and the operation output required to set the indoor humidity to the target humidity is reduced.

  Furthermore, in the humidity control operation in which the humidity range A is set, the target humidity for the humidifying operation is lower than when other humidity ranges are set. Therefore, during the humidifying operation, the difference between the indoor humidity and the target humidity is reduced, and the operation output required to set the indoor humidity to the target humidity is reduced.

  Thus, when the humidity range A is set, the humidity adjustment operation in the energy saving mode with the operation output suppressed to a low level is performed. Therefore, power consumption during the humidity control operation can be reduced.

  In addition, when the humidity range C that is the narrowest (the difference between the upper limit value and the lower limit value is the smallest) among the three humidity ranges is set as the target humidity range, “strong” is displayed on the liquid crystal display unit (110). Then, the humidity control operation with a strong operation output (for example, the output of the compressor (31)) is performed.

  Specifically, in the humidity control operation in which the humidity range C is set, the target humidity of the dehumidifying operation is lower than when other humidity ranges are set. Therefore, during the dehumidifying operation, although the difference between the indoor humidity and the target humidity is increased and the operation output is increased, the indoor humidity can be kept low and the indoor comfort can be enhanced.

  Furthermore, in the humidity control operation in which the humidity range C is set, the target humidity for the humidifying operation is lower than when other humidity ranges are set. For this reason, during the humidifying operation, the difference between the indoor humidity and the target humidity becomes large and the operation output becomes large, but the indoor humidity can be kept high and the indoor comfort can be enhanced.

  In addition, when the humidity range B is set as the target humidity range among the three humidity ranges, “standard” is displayed on the liquid crystal display unit (110), and the humidity output range is stronger than when the operation output is the humidity range A. Humidity control operation weaker than in the case of C is performed.

-Effect of the embodiment-
According to the above-described embodiment, when the humidity control operation is performed, the target humidity range is set by the user. During the humidity control operation, the controller (150) executes a dehumidifying operation with the upper limit value as the target humidity range when the indoor humidity becomes higher than the upper limit value of the target humidity range. When the value is lower than the lower limit value, the humidifying operation with the lower limit value as the target humidity is executed. As a result, the humidity in the room can be kept within the target humidity range (between the upper limit value and the lower limit value) without the user changing the target humidity setting during the humidity control operation, thereby improving user convenience. Can do.

  Further, according to the embodiment, the user selects one of the three humidity ranges (humidity ranges A, B, and C) and sets the target humidity range. Then, the wider the humidity range selected by the user (the greater the difference between the upper limit value and the lower limit value of the humidity range), the lower the operation output during the humidity control operation. As a result, the user can select a relatively wide humidity range A to perform humidity control with an emphasis on energy saving (reduction of power consumption), or select a relatively narrow humidity range C to emphasize indoor comfort. You can choose whether to perform humidity control.

  Further, according to the above embodiment, the user selects the humidity range with the cyclic button (124). For example, if the user selects the humidity range with the cursor button (121), the user will be reminded that the target humidity will increase or decrease each time the cursor button (121) is pressed. There is a risk of inviting. However, in the above embodiment, since the user selects the humidity range with the cyclic button, misunderstanding on setting can be avoided.

  Moreover, according to the said embodiment, by switching the circulation direction of the refrigerant | coolant of a refrigerant circuit (30), adsorption | suction operation | movement is carried out between two adsorption | suction heat exchangers (33a, 33b) connected to the refrigerant circuit (30). The playback operation is alternately performed. Then, dehumidifying operation to supply the air dehumidified by the adsorption heat exchanger (33a, 33b) during the adsorption operation to the room and supplying air humidified by the adsorption heat exchanger (33a, 33b) during the regeneration operation to the room Humidity control operation that selectively performs the humidifying operation is performed. This makes it possible to perform humidity control for a long time easily, and even during long-time humidity control operation, the user can set the indoor humidity within the target humidity range (upper limit value and lower limit value without changing the target humidity setting). In between).

<< Other Embodiments >>
About the said embodiment, it is good also as the following structures.

  In the above embodiment, the desorption part of the present invention and the humidification part of the present invention are configured by two adsorption heat exchangers (33a, 33b) connected to the refrigerant circuit (30) and carrying the adsorbent. . However, as long as the dehumidifying part of the present invention dehumidifies the air taken in, it may have a configuration other than the above embodiment, and the humidifying part of the present invention other than the above embodiment as long as it humidifies the taken-in air. The configuration of

  In the above-described embodiment, so-called dehumidification ventilation operation (or humidification ventilation operation) is performed in which outdoor air (OA) is dehumidified (or humidified), supplied to the room, and indoor air (RA) is discharged. However, the method of dehumidifying (or humidifying) the room is not limited to this. For example, even if a so-called dehumidification circulation operation (or humidification circulation operation) is performed in which room air (RA) is dehumidified (or humidified) and returned to the room. I do not care.

  In the above embodiment, the target humidity range is set by the user selecting one of the three humidity ranges. However, the number of humidity ranges that can be selected by the user is not limited to this.

  In the above embodiment, the wider the humidity range (in order of A, B, and C), the higher the upper limit value of the humidity range and the lower the lower limit value of the humidity range. The relationship is not limited to this.

  Further, in the above embodiment, the button (124) that periodically switches the humidity ranges A, B, and C in order is used for setting the target humidity range. However, the button for setting the target humidity range is not limited to this. For example, when the user presses the button, the humidity range A in which the widest humidity range A is set (the difference between the upper limit value and the lower limit value is the largest) is set. A button may be provided separately. By doing so, the user can set the humidity control operation in the energy saving mode with a single touch, for example, when taking a go-out to prevent indoor mold, and the convenience of the user can be improved.

  As described above, the present invention is useful for a humidity control apparatus that adjusts the humidity of a room.

10 Humidity control device
30 Refrigerant circuit
32 Four-way selector valve (switching mechanism)
33a First adsorption heat exchanger (dehumidification part, humidification part, adsorption heat exchanger)
33b Second adsorption heat exchanger (dehumidification part, humidification part, adsorption heat exchanger)
120 Setting section
124 Situation button (Setting button)
150 Controller (Controller)

  The present invention relates to a humidity control apparatus that adjusts humidity in a room, and particularly relates to a measure for improving user convenience.

  2. Description of the Related Art Conventionally, there is known a humidity control apparatus that supplies humidity that has been dehumidified or humidified into a room to condition the room. For example, Patent Document 1 discloses this type of humidity control apparatus. This humidity control apparatus includes a compressor, a four-way switching valve, and a refrigerant circuit to which two adsorption heat exchangers are connected. When the refrigerant is circulated, one adsorption heat exchanger functions as an evaporator, and the other The adsorption heat exchanger is configured to function as a condenser. In the adsorption heat exchanger as an evaporator, the adsorbent is cooled by the refrigerant, and an adsorption operation for adsorbing moisture in the air to the adsorbent is performed. On the other hand, in the adsorption heat exchanger serving as a condenser, the adsorbent is heated by the refrigerant, and a regeneration operation for desorbing moisture from the adsorbent into the air is performed. The regeneration operation and the adsorption operation are alternately repeated between the two adsorption heat exchangers by switching the refrigerant circulation direction in the refrigerant circuit with the four-way switching valve.

  In this humidity control apparatus, a dehumidifying operation and a humidifying operation are performed. In the dehumidifying operation, outdoor air (OA) is guided to an adsorption heat exchanger that performs an adsorption operation, and air dehumidified by the adsorption heat exchanger is supplied into the room. At this time, the indoor air (RA) is guided to the adsorption heat exchanger that performs the regeneration operation, and is discharged to the outside together with the moisture desorbed from the adsorbent of the adsorption heat exchanger.

  On the other hand, in the humidification operation, outdoor air (OA) is led to an adsorption heat exchanger that performs a regeneration operation, and air humidified by the adsorption heat exchanger is supplied indoors. At this time, the indoor air (RA) is guided to an adsorption heat exchanger that performs an adsorption operation, adsorbs moisture to the adsorbent of the adsorption heat exchanger, and then is discharged to the outside.

JP 2009-92299 A

  In the conventional humidity control apparatus, the humidity control operation that selectively executes the dehumidifying operation and the humidifying operation may be performed. In the humidity control operation, for example, in the summer when the humidity is high, the dehumidifying operation is executed when the indoor humidity becomes higher than a predetermined target humidity. In the winter when the humidity is low, the indoor humidity becomes lower than the predetermined target humidity. Humidification operation is executed.

  However, in the conventional humidity control operation, when the target humidity of the dehumidifying operation in summer is increased and the target humidity of the humidifying operation in winter is decreased, and the indoor humidity is to be kept within a predetermined range, the user performs the dehumidifying operation and humidifying operation. The target humidity has to be set and changed at the time of switching to operation, and there is a problem that it is not convenient for the user.

  The present invention has been made in view of the above points, and when the humidity control operation is performed to keep the indoor humidity within a predetermined range, the setting of the target humidity is not changed by the user and the convenience of the user is improved. The purpose is to let you.

The first invention includes a dehumidifying section (33a, 33b) that dehumidifies air by adsorbing moisture in the air to the adsorbent, and a humidifying section that humidifies air by desorbing moisture from the adsorbent into the air. (33a, 33b) and the dehumidifying operation for supplying the air dehumidified by the dehumidifying unit (33a, 33b) to the room so that the indoor humidity becomes the target humidity, and the air humidified by the humidifying unit to the room The present invention is intended for a humidity control apparatus including a control unit (150) that controls a humidity control operation that selectively performs a humidifying operation to be supplied. Then, comprising a setting unit for one user to set the target humidity range of the plurality of humidity within a predetermined range (120), the control unit (150), indoor humidity and the target humidity range When the indoor humidity is lower than the lower limit value of the target humidity range, the humidification operation is performed using the lower limit value as the target humidity. .

  In the said 1st invention, when performing humidity control operation, the target humidity range is set by the user. Then, when the humidity control operation is started and the indoor humidity becomes higher than the upper limit value of the target humidity range, a dehumidifying operation is performed with the upper limit value as the target humidity, and the indoor humidity is lower than the lower limit value of the target humidity range. If it becomes lower, the humidification operation with the lower limit as the target humidity is executed.

  Thus, in the first aspect, the indoor humidity is maintained within the target humidity range (between the upper limit value and the lower limit value) without the user changing the setting of the target humidity during the humidity control operation.

In a second aspect based on the first invention, the plurality of humidity ranges, different humidity range which is the difference between the upper and lower limit values to each other, the wider humidity range of the humidity range, the upper limit value is high And the lower limit is low.

In the second aspect, the target humidity of the dehumidifying operation which is the upper limit value is higher as the humidity range of the humidity range selected by the user as the target humidity range is wider (the difference between the upper limit value and the lower limit value of the humidity range is larger). The target humidity for the humidifying operation, which is the lower limit value, is lowered. During each operation of the dehumidifying operation and the humidifying operation, the difference between the indoor humidity and the target humidity is reduced, and the operation output required to set the indoor humidity to the target humidity can be suppressed to a low level. Reduced.

As described above, in the second aspect of the invention, the humidity control operation with low power consumption is performed as the humidity range of the humidity range selected by the user as the target humidity range is wider. Therefore, the user, whether to emphasize the humidity driving energy efficiency (reduction in power consumption) by selecting a relatively wide humidity range humidity range, comfortable chamber humidity range selects a relatively narrow moisture range You can choose whether to perform humidity control with an emphasis on performance.

In a third aspect based on the second invention, the setting unit (120), as it has a dedicated button which the user widest humidity range of the humidity width is set to the target humidity range Press is there.

In the third aspect of the present invention, when performing the humidity control operation, when the user presses the dedicated button, the lowest humidity range highest lower limit upper limit is set to the target humidity range. During the humidity control operation, the dehumidifying operation in the energy saving mode having the highest target humidity and the lowest operating output and the humidifying operation in the energy saving mode having the lowest target humidity and the lowest operating output are selectively executed. .

According to a fourth invention, in any one of the first to third inventions, the setting unit (120) is set to the target humidity range among the plurality of humidity ranges each time the user presses. Has a setting button (124) that switches periodically in order.

  The user selects one of a humidity range in which the target humidity for the dehumidifying operation is high and the target humidity for the humidifying operation is low, or a humidity range in which the target humidity for the dehumidifying operation is low and the target humidity for the humidifying operation is high. Set. If the humidity range is selected by the user using, for example, a cursor button, the user may be reminded that the target humidity increases or decreases each time the cursor button is pressed, which may cause misunderstanding of settings. However, in the fourth aspect of the invention, since the humidity range is selected by the user with the cyclic button that periodically switches the humidity range, misunderstanding in setting is avoided.

In a fifth aspect based on any one of the first to fourth aspects, the dehumidifying section (33a, 33b) and the humidifying section (33a, 33b) are connected to a refrigerant circuit (30) that performs a refrigeration cycle. It is composed of two adsorption heat exchangers (33a, 33b) that support the adsorbent, and the refrigerant circuit (30) uses the two adsorption heat exchangers (33a, 33b) to adsorb and regenerate the adsorbent. And a switching mechanism (32) that switches the refrigerant circulation direction so that the air is dehumidified by the adsorption heat exchanger (33a, 33b) during the adsorption operation. Humidity control operation for selectively performing a dehumidifying operation for supplying air into the room and a humidifying operation for supplying air humidified by the adsorption heat exchanger (33a, 33b) during the regeneration operation into the room .

  In the fifth aspect of the invention, a continuous humidity control operation for a long time is easily performed while alternately performing the adsorption operation and the regeneration operation between the two adsorption heat exchangers. Even during continuous operation for a long time, the user can keep the indoor humidity within the target humidity range (between the upper limit value and the lower limit value) without changing the target humidity setting.

  According to the present invention, when the humidity control operation is performed, the target humidity range is set by the user. Then, when the humidity control operation is started and the indoor humidity becomes higher than the upper limit value of the target humidity range, a dehumidifying operation is executed with the upper limit value as the target humidity, and the indoor humidity is lower than the lower limit value of the target humidity range. When the value becomes lower, the humidification operation with the lower limit as the target humidity is executed. As a result, the humidity in the room can be kept within the target humidity range (between the upper limit value and the lower limit value) without the user changing the target humidity setting during the humidity control operation, thereby improving user convenience. Can do.

In addition, according to the second invention, as the humidity range of the humidity range selected by the user as the target humidity range is wider (the difference between the upper limit value and the lower limit value of the humidity range is larger), the operation output during the humidity control operation is increased. I tried to lower it. Thus, the user, whether to selected tone emphasizing wet driving energy efficiency (reduction in power consumption) and a relatively wide humidity range humidity range, the room by selecting a relatively narrow moisture range humidity range You can choose whether to perform humidity control with an emphasis on comfort.

  According to the third aspect of the invention, the dedicated button for setting the humidity control operation in the energy saving mode having the lowest operation output of each operation is provided. As a result, the user can set the humidity control operation in the energy saving mode with one touch, for example, when taking out the house, to prevent indoor mold.

  According to the fourth invention, the user selects the humidity range with the setting button (124) which is a cyclic button. If the user selects a humidity range with, for example, a cursor button, the user is reminded that the target humidity will increase or decrease each time the cursor button is pressed, which may cause misunderstanding of settings. However, in the fourth invention, since the user selects the humidity range with a cyclic button, misunderstanding on setting can be avoided.

  Moreover, according to 5th invention, adsorption | suction operation | movement is carried out between the two adsorption | suction heat exchangers (33a, 33b) connected to the refrigerant circuit (30) by switching the circulation direction of the refrigerant | coolant of a refrigerant circuit (30). And playback operation are performed alternately. Then, dehumidifying operation to supply the air dehumidified by the adsorption heat exchanger (33a, 33b) during the adsorption operation to the room and supplying air humidified by the adsorption heat exchanger (33a, 33b) during the regeneration operation to the room Humidity control operation that selectively performs the humidifying operation is performed. This makes it possible to perform humidity control for a long time easily, and even during long-time humidity control operation, the user can set the indoor humidity within the target humidity range (upper limit value and lower limit value without changing the target humidity setting). In between).

FIG. 1 is a perspective view illustrating a casing structure of a humidity control apparatus according to an embodiment. FIG. 2 is a perspective view illustrating a frame structure of the humidity control apparatus according to the embodiment. FIG. 3 is a configuration diagram schematically illustrating the humidity control apparatus according to the embodiment. FIG. 3A is a top view of the humidity control apparatus, and FIG. 3B is an internal structure of the humidity control apparatus. FIG. 3C shows the internal structure of the humidity control apparatus from the left side, and FIG. 3D shows the internal structure of the humidity control apparatus from the right side. FIG. 4 is a configuration diagram schematically illustrating the humidity control apparatus according to the embodiment. FIG. 4A illustrates the internal structure of the humidity control apparatus as viewed from the YY cross section of FIG. FIG. 4B shows the internal structure of the humidity control apparatus as viewed from the ZZ cross section of FIG. FIG. 5 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the internal structure of the lower space. FIG. 6 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the peripheral structure of the reheat heat exchanger. FIG. 7 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the peripheral structure of the lower damper. FIG. 8 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the peripheral structure of the upper damper. FIG. 9 is a perspective view of the adsorption heat exchanger according to the embodiment in which the surrounding humidity control chamber is added using a virtual line. FIG. 10 is a perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the internal structure of the upper space. FIG. 11 is a schematic configuration diagram of a refrigerant circuit of the humidity control apparatus according to the embodiment. FIG. 12 is a schematic configuration diagram of a remote controller of the humidity control apparatus according to the embodiment. FIG. 13 is an air diagram showing humidity ranges A, B, and C that can be set as target humidity ranges in the setting unit of the remote controller according to the embodiment. FIG. 14 shows the air flow of the first operation during the dehumidifying operation (during the dehumidifying operation of the humidity adjusting operation) or the first operation during the humidifying operation (during the humidifying operation of the humidity adjusting operation) of the humidity control apparatus according to the embodiment. FIG. 4 is a view corresponding to FIG. 3. FIG. 15 shows the air flow of the first operation during the dehumidifying operation (during the dehumidifying operation of the humidity adjusting operation) or the first operation during the humidifying operation (during the humidifying operation of the humidity adjusting operation) of the humidity control apparatus according to the embodiment. FIG. 5 is a view corresponding to FIG. 4. FIG. 16 shows the air flow of the second operation during the dehumidifying operation (during the dehumidifying operation of the humidity adjusting operation) or the second operation during the humidifying operation (during the humidifying operation of the humidity adjusting operation) of the humidity control apparatus according to the embodiment. FIG. 4 is a view corresponding to FIG. 3. FIG. 17 shows the air flow of the second operation during the dehumidifying operation (during the dehumidifying operation of the humidity adjusting operation) or the second operation during the humidifying operation (during the humidifying operation of the humidity adjusting operation) of the humidity control apparatus according to the embodiment. FIG. 5 is a view corresponding to FIG. 4. FIG. 18 is a graph illustrating the passage of time in room humidity during the humidity control operation of the humidity control apparatus according to the embodiment.

  An embodiment of the present invention will be described. The embodiments described below are essentially preferable examples, and are not intended to limit the scope of the present invention, its application, or its use.

  The humidity control device (10) according to the embodiment of the present invention is a floor-type humidity control device that is installed on the floor surface of the room and adjusts the humidity of the room. The humidity control apparatus (10) is installed, for example, in a storage space of a closet in which clothes and the like are stored.

  The configuration of the humidity control apparatus (10) will be described with reference to the drawings. In the following description, “up”, “down”, “right”, “left”, “front”, and “rear” are indicated in principle by referring to the humidity control apparatus (10) shown in FIG. It is based on the case. 3 and 4 schematically show the humidity control device (10). FIG. 3 (A) shows the upper surface of the humidity control device (10), and FIG. 3 (B) shows the humidity control device. FIG. 3 (C) shows the internal structure on the left side of the humidity control device (10), and FIG. 3 (D) shows the internal structure on the right side of the humidity control device. 4A shows the internal structure of the humidity control apparatus of FIG. 3A as viewed from the YY cross section, and FIG. 4B shows the humidity control apparatus of FIG. 4A. The internal structure is viewed from the ZZ cross section.

<Case structure>
As shown in FIG. 1, the humidity control apparatus (10) includes a vertically long rectangular parallelepiped box-shaped casing (11). The casing (11) includes a rectangular plate-like bottom plate (12) and a top plate (13), and four rectangular plate-like panels (14, 14) corresponding to the four sides of the bottom plate (12) and the top plate (13). 15,16,17). These panels (14,15,16,17) consist of a front panel (14) on the front side, a rear panel (15) on the rear side, a right side panel (16) on the right side, and a left side panel on the left side ( 17). In the casing (11), the bottom plate (12), the top plate (13), the rear panel (15), the right side panel (16), and the left side panel (17) have a casing body (11a ). The front panel (14) is configured to be detachable from the casing body (11a) via a fastening member such as a screw. The casing (11) is installed such that the rear panel (15) is in contact with the indoor wall.

  The front panel (14) includes a lower panel (14a) that covers the lower space (S1) of the casing (11), an upper panel (14b) that covers the upper space (S3) of the casing (11), and a casing (11) And an intermediate panel (14c) covering the intermediate space (S2). Further, a filter maintenance panel (14d) is provided at the lower left corner of the lower panel (14a). In the front panel (14), these panels (14a, 14b, 14c, 14d) are configured to be individually removable.

  Four duct connection ports (18) are attached to the top plate (13). Specifically, the top plate (13) has an air supply connection port (18a) on the front right side, an exhaust connection port (18b) on the rear right side, and an outside air connection port (18c) on the rear left side. The inside air connection port (18d) is provided on the front left side. The air supply connection port (18a) and the indoor air connection port (18d) communicate with the indoor space via the duct, respectively, and the exhaust connection port (18b) and the outdoor air connection port (18c) communicate with the outdoor space via the duct, respectively. Communicate. That is, in the humidity control apparatus (10), the air supply connection port (18a) and the indoor air connection port (18d) connected to the indoor space are arranged in a concentrated manner on the front side of the casing (11), and are connected to the outdoor space. (18b) and the outside air connection port (18c) are collectively arranged on the rear side of the casing (11). Outdoor air (OA) is sucked into the outdoor air connection port (18c), and indoor air (RA) is sucked into the indoor air connection port (18d). Supply air (SA) is blown into the room from the air supply connection port (18a), and exhaust air (EA) is blown out of the room through the exhaust connection port (18b).

<Frame structure>
As shown in FIG. 2, four vertical frames (support members) (21) corresponding to the four corners of the bottom plate (12) are provided inside the casing (11). These vertical frames (21) include a first vertical frame (21a) on the front right side, a second vertical frame (21b) on the rear right side, a third vertical frame (21c) on the rear left side, and a left side on the front side. It is composed of a fourth vertical frame (21d). Each vertical frame (21) extends vertically to a position slightly above the middle portion in the height direction of the casing (11). That is, in the casing (11), there is no vertical frame directly connected to the bottom plate (12) between the top plate (13) and the upper end of each vertical frame (21).

  Four horizontal frames (22) (beam members) extending in the horizontal direction are bridged on top of each vertical frame (21). These horizontal frames (22) include a first horizontal frame (22a) between a first vertical frame (21a) and a second vertical frame (21b), a second vertical frame (21b), and a third vertical frame ( 21c), a second horizontal frame (22b), a third vertical frame (21c), a third horizontal frame (22c) between the fourth vertical frame (21d), and a fourth vertical frame (21d). And a fourth horizontal frame (22d) between the first vertical frame (21a). The second, third, and fourth horizontal frames (22b, 22c, 22d) are connected to the upper ends of the corresponding vertical frames (21). On the other hand, the first horizontal frame (22a) is connected to a portion slightly lower than the upper ends of the first and second vertical frames (21a, 21b).

  Three intermediate frames (23) extending horizontally are provided on the lower side of the horizontal frame (22). The intermediate frame (23) includes a first intermediate frame (23a) formed below the first horizontal frame (22a) and a second intermediate frame formed below the second horizontal frame (22b). (23b) and a third intermediate frame (23c) formed below the third horizontal frame (22c).

  The vertical frame (21), the horizontal frame (22), and the intermediate frame (23) are heavy components that are relatively heavy among the components of the humidity control device (10). ) And the adsorption heat exchanger (33a, 33b)) act to constitute a support member for supporting them.

<Inside space of casing>
As shown in FIG. 2, the inside of the casing (11) includes a lower space (S1) formed on the back side of the lower panel (14a) and an intermediate space (S2) formed on the back side of the intermediate panel (14c). ) And the upper space (S3) formed on the back side of the upper panel (14b).

<Components in the lower space>
As shown in FIGS. 5 and 6, a lower partition member (41) is installed in the lower space (S1) along the left side panel (17). The lower partition member (41) is made of a resin material such as polystyrene, and is formed in a frame shape in which the upper side and the lower side are opened. The lower partition member (41) includes a lower partition (41a) that divides the lower space (S1) left and right, and a small-diameter cylindrical portion having a substantially rectangular cross section disposed adjacent to the third vertical frame (21c). 41b) and a large-diameter cylindrical portion (41c) having a substantially rectangular cross section disposed adjacent to the fourth vertical frame (21d). An outside air inflow path (61) is defined inside the small diameter cylindrical portion (41b). A reheat chamber (63) is defined inside the large diameter cylindrical portion (41c). The outside air inflow channel (61) and the reheat chamber (63) communicate with each other through the communication port (62) (see FIG. 6).

  The reheat chamber (63) is provided with an upper support plate (41d) formed integrally with the lower partition member (41). The upper support plate (41d) is continuous with the left inner wall of the large-diameter cylindrical portion (41c) and is supported in a horizontal state so as to be parallel to the bottom plate (12). In the reheat chamber (63), a lower outside air flow path (63a) continuous to the communication port (62) is formed below the upper support plate (41d), and a lower outside air flow path (upper side of the upper support plate (41d) ( An upper outside air flow path (63b) continuous with 63a) is formed (see FIGS. 3B and 6). That is, in the reheat chamber (63), the vertical cross section of the air from the inflow side of the lower outside air flow path (63a) to the outflow side of the upper outside air flow path (63b) is substantially U-shaped (U-shaped). A flow path is formed.

  As shown in FIG. 6 and the like, the lower outside air flow path (63a) is provided with an insect filter (26), a pleat filter (27), and a reheat unit (28) in order from the upstream side to the downstream side. It is done.

  The insect filter (26) is a net-like member that captures insects and relatively large dust in the outdoor air. The pleated filter (27) is an air cleaning filter having finer eyes than the insect filter (26), and traps relatively small dust in the outdoor air. The lower partition member (41) is provided with a maintenance lid (41e) on the back side of the filter maintenance panel (14d) described above (see FIG. 5). The maintenance lid (41e) is configured to freely open and close the maintenance ports of the insect removing filter (26) and the pleat filter (27). That is, when the filter maintenance panel (14d) is removed and then the maintenance lid (41e) is opened, the front ends of the insect filter (26) and the pleat filter (27) are exposed to the outside of the casing body (11a).

  The reheat unit (28) has a frame (29) and a reheat heat exchanger (35) fixed inside the frame (29). The frame (29) includes a pair of side stays (29a) and a frame body (29b) that is sandwiched between the pair of side stays (29a) so that the inner wall faces obliquely downward. The frame body (29b) has an obliquely inclined opening surface (29c), and the reheat heat exchanger (35) is held along the opening surface (29c). A reheat heat exchanger (35) comprises the heating heat exchanger which heats outdoor air with a refrigerant | coolant.

  As shown in FIG. 5, in the lower space (S1), the machine room (60) is partitioned in a substantially half on the right side (outside of the lower partition member (41)). In the machine room (60), an electrical component box (90) is installed on the back side of the front panel (14). The electrical component box (90) accommodates electrical components such as a printed circuit board for a power supply circuit of a motor of the compressor (31) and a reactor electrically connected to the circuit on the printed circuit board. In the machine room (60), a compressor (31) and a four-way selector valve (32) are installed on the back side of the electrical component box (90). That is, when the lower panel (14a) of the front panel (14) is removed, the electrical component box (90) is exposed to the outside of the casing body (11a). Further, when the electrical component box (90) is taken out, the compressor (31) and the four-way selector valve (32) are exposed to the outside of the casing body (11a).

<Intermediate space>
In the intermediate space (S2), a first intermediate partition member (43), a second intermediate partition member (44), and a third intermediate partition member (47) are provided in order from the lower side to the upper side. These intermediate partition members (43, 44, 47) are all resin members such as polystyrene molded integrally.

  As shown in FIG. 7, the first intermediate partition member (43) closes the upper open portion of the machine room (60). On the upper surface of the first intermediate partition member (43), a frame portion (43a) protruding in a rectangular shape and a pair of concave grooves (43c, 43c) formed on the left and right outer sides of the frame portion (43a) And are formed. The frame portion (43a) is formed across the first intermediate partition member (43). A water receiving portion (43b) for receiving condensed water generated in the humidity control chamber (66a, 66b) is formed inside the frame portion (43a). The water receiving portion (43b) is formed across the first intermediate partition member (43). The bottom surface of the water receiving portion (43b) is inclined so as to face slightly upward from the horizontal plane. That is, the water accumulated in the water receiving portion (43b) is guided forward along the inclined bottom surface. The concave grooves (43c, 43c) extend in the front-rear direction along the left and right side walls of the frame portion (43a).

  As shown in FIG. 8, the second intermediate partition member (44) is supported by the first intermediate frame (23a) and the second intermediate frame (23b) while being predetermined above the first intermediate partition member (43). Are arranged at intervals. In the second intermediate partition member (44), concave grooves (44a, 44a) extending in the front-rear direction are formed at positions corresponding to the concave grooves (43c, 43c) of the first intermediate partition member (43).

  On the other hand, as shown in FIG. 7, between the first intermediate partition member (43) and the second intermediate partition member (44), there are two lower damper partition plates (45) and one horizontal partition. A plate (46) is formed. The two lower damper partition plates (45) and the one horizontal partition plate (46) are arranged vertically so that the plate thickness directions thereof are horizontal. The two lower damper partition plates (45) are composed of an outside air damper partition plate (45a) and an exhaust damper partition plate (45b).

The lower part of the outside air damper partition plate (45a) is fitted into the left groove (43c) of the first intermediate partition member (43), and the upper end of the outside air damper partition plate (45a) is the left groove of the second intermediate partition member (44). (44a). The lower end of the exhaust damper partition plate (45b) is fitted into the right groove (43c) of the first intermediate partition member (43), and the upper end of the exhaust damper partition plate (45b) is the left groove of the second intermediate partition member (44). (44a). The front end of the lower damper partition (45) is located on the back side of the front panel (14). That is, when the front panel (14) is removed, the front end of the lower damper partition (45) is exposed to the outside of the casing body (11a). In a state where the front panel (14) is removed, the lower damper partition plate (45) can be pulled back and forth along the respective concave grooves (43c, 44a).

  As shown in FIGS. 3, 7, and 8, an intermediate outside air flow path (64) communicating with the reheat chamber (63) is formed on the left side of the outside air damper partition plate (45a) so as to extend back and forth. The outside air damper partition plate (45a) is provided with a first damper (D1) on the front side and a second damper (D2) on the rear side. On the right side of the exhaust damper partition plate (45b), an intermediate exhaust passage (65) is formed extending forward and backward. The exhaust damper partition plate (45b) is provided with a third damper (D3) on the front side and a fourth damper (D4) on the rear side.

  As shown in FIG. 7 and FIG. 9, the space between the outside air damper partition plate (45a) and the exhaust damper partition plate (45b) is divided into two humidity control chambers (66) by the horizontal partition plate (46). It has been. In these humidity control chambers (66), the front space forms a first humidity control chamber (66a), and the rear space forms a second humidity control chamber (66b). The first humidity control chamber (66a) is formed at a position corresponding to the first damper (D1) and the third damper (D3), and the second humidity control chamber (66b) is the second damper (D2) and the fourth damper. It is formed at a position corresponding to the damper (D4). The first humidity control chamber (66a) and the second humidity control chamber (66b) are formed over the inside of the second intermediate partition member (44).

  The two adsorption heat exchangers (33a, 33b) are a first adsorption heat exchanger (33a) housed in the first humidity control chamber (66a) and a second housed in the second humidity control chamber (66b). And an adsorption heat exchanger (33b). These two adsorption heat exchangers (33a, 33b) are those in which an adsorbent is supported on the surface of a cross fin type fin-and-tube heat exchanger body (34). Part.

  The heat exchanger body (34) of each adsorption heat exchanger (33a, 33b) includes a copper heat transfer tube (34a) and a number of aluminum fins (34b). The heat transfer tube (34a) has a straight tube portion and a U-shaped portion formed alternately and continuously in a meandering shape. The fin (34b) is formed in a vertically long plate shape, and the straight pipe portion of the heat transfer tube (34a) penetrates in the thickness direction. That is, a large number of fins (34b) are arranged in parallel along the axial direction of the straight tube portion of the heat transfer tube (34a).

  The adsorbent is supported on the surfaces of a large number of fins (34b) and heat transfer tubes (34a). At the interface between the adsorbent and air, moisture in the air is adsorbed or adsorbed moisture is desorbed into the air (adsorbent is regenerated). As the adsorbent, zeolite, silica gel, activated carbon, an organic polymer material having a hydrophilic functional group, or the like is used. Moreover, as an adsorbent, you may use the material (what is called a sorbent) which has the function not only to adsorb | suck moisture but to absorb moisture.

  Each adsorption heat exchanger (33a, 33b) is held in the storage chamber (67) so that the short side of the fin (34b) is vertical and the U-shaped portion of the heat transfer tube (34a) is located on both the left and right sides. The

  As shown in FIG. 8, the third intermediate partition member (47) is laminated on the upper side of the second intermediate partition member (44). A pair of wide grooves (47a, 47a) wide on the left and right are formed on the upper surface of the third intermediate partition member (47). A pair of upper damper partition plates (48) are fitted in the thickness direction in these wide grooves (47a). These upper damper partition plates (48) are arranged horizontally so that their thickness directions are vertical. The front end portion of the upper damper partition plate (48) is located on the back side of the front panel (14). That is, when the front panel (14) is removed, the front end portion of the upper damper partition (48) is exposed to the outside of the casing body (11a). When the front panel (14) is removed, the upper damper partition plate (48) can be pulled back and forth along the wide grooves (47a).

  The pair of upper damper partition plates (48) includes a left-side internal air damper partition plate (48a) and a right-side air supply damper partition plate (48b). The inside air damper partition plate (48a) is provided with a fifth damper (D5) on the front side and a sixth damper (D6) on the rear side. The supply damper partition plate (48b) is provided with a seventh damper (D7) on the front side and an eighth damper (D8) on the rear side. The fifth damper (D5) and the seventh damper (D7) are formed at positions corresponding to the first humidity control chamber (66a), and the sixth damper (D6) and the eighth damper (D8) are the second humidity control chamber. It is formed at a position corresponding to the chamber (66b).

  At the corners on the right rear side of the second intermediate partition member (44) and the third intermediate partition member (47), laterally long through holes extending in the front-rear direction are formed, and these through holes are continuously connected to the exhaust communication flow. Constructs a road (68).

  An outside air duct portion (53) of the first upper partition member (51) extends vertically in a corner on the left rear side of the intermediate space (S2) (see FIGS. 8 and 10). The lower end of the outside air duct part (53) is continuous with the large-diameter cylindrical part (41c) of the lower partition member (41). In the intermediate space (S2), a spacer member (24) is provided on the front side of the first humidity control chamber (66a). The spacer member (24) is interposed between the first intermediate partition member (43) and the first intermediate frame (23a) so as to ensure a predetermined interval.

<Upper space>
As shown in FIG. 10, a first upper partition member (51), a second upper partition member (54), and a third upper partition member (80) are provided in the upper space (S3). These partition members (51, 54, 80) are all polystyrene resin materials molded integrally. In the upper space (S3), the four upper chambers (19) are partitioned by these partition members (51, 54, 80). These upper chambers (19) consist of a front right-side indoor air supply chamber (19a), a rear right-side outdoor exhaust chamber (19b), a rear left-side outdoor air suction chamber (19c), and a front left-side indoor air suction Chamber (19d). The indoor air supply chamber (19a) communicates with the air supply connection port (18a), the outdoor exhaust chamber (19b) communicates with the exhaust connection port (18b), and the outdoor air suction chamber (19c) communicates with the external air connection port (18c). The room air suction chamber (19d) communicates with the room air connection port (18d). An air supply fan unit (84) is provided in the indoor air supply chamber (19a), and an exhaust fan unit (87) is provided in the outdoor exhaust chamber (19b).

  The first upper partition member (51) is provided on the left side of the upper space (S3). The first upper partition member (51) extends along the left side wall (52) formed across the front and rear ends of the casing (11) along the left side panel (17), and along the third vertical frame (21c). A cylindrical outside air duct portion (53) extending vertically. The outside air duct part (53) is arranged in the upper space (S3) and continues from the lower end of the large diameter duct part (53a) and the large diameter duct part (53a) that divides the outside air suction chamber (19c) inside. And a small-diameter duct portion (53b) that is disposed in the intermediate space (S2) and has a smaller diameter than the large-diameter duct portion (53a).

  In the upper space (S3), an outside air suction chamber (19c) is formed inside the large diameter duct portion (53a), and an inside air suction chamber (19d) is formed outside the large diameter duct portion (53a). In the upper space (S3), the upper inside air flow path (69) is partitioned from the outer lower side of the large diameter duct portion (53a) to the front panel (14). The upper end of the upper inside air channel (69) communicates with the inside air suction chamber (19d). Further, the fifth damper (D5) and the seventh damper (D7) of the internal air damper partition plate (48a) face the upper internal air flow path (69). A duct internal flow path (71) connected to the outside air inflow path (61) is formed inside the small diameter duct portion (53b) (see FIG. 3B).

  The second upper partition member (54) includes a right side wall portion (55) formed across the front and rear ends of the casing (11) along the right side panel (16) of the casing (11), and an upper space (S3). And a rear side wall portion (57) continuous to each rear end portion of the right side wall portion (55) and the central partition portion (56).

A pedestal (55a) is formed inside the right side wall (55). The pedestal portion (55a) has a longitudinal section formed in an L shape, and extends back and forth from the rear side wall portion (57) to the front panel (14) side. A first installation surface (55c) on which the fan units (84, 87) and the third upper partition member (80) are installed so as to be able to be guided back and forth is formed on the upper end surface of the pedestal portion (55a).

  A columnar first contact portion (55b) extending in the vertical direction is formed at an intermediate portion in the front-rear direction of the right side wall portion (55). The rear end portion of the third upper partition member (80) contacts the front end of the first contact portion (55b). Further, a sealing material (not shown) is formed on the contact surface with respect to the third upper partition member (80) in the first contact portion (55b).

  The central partition (56) includes a vertical first vertical wall (56a), a horizontal wall (56b) bent horizontally from the lower end of the first vertical wall (56a), and a vertical from the right end of the horizontal wall (56b). And a bent second vertical wall (56c). A second installation surface (56d) on which the fan units (84, 87) and the third upper partition member (80) are installed so as to be guided back and forth is formed on the upper end surface of the central partition (56). .

  The central partition (56) divides the outside air suction chamber (19c) and the inside air suction chamber (19d) arranged in the front-rear direction from the outside exhaust chamber (19b) and the indoor air supply chamber (19a) arranged in the front-rear direction. In addition, a main partition extending in the front and rear direction of the casing (11) is formed. Since the central partition (56) is formed integrally with the right side wall (55) and the rear side wall (57) along the casing (11), the central partition (56) is independent of other members. You can't just remove it.

  A columnar second abutting portion (56e) extending vertically is formed at an intermediate portion in the front-rear direction of the central partition portion (56). The rear end portion of the third upper partition member (80) contacts the front end of the second contact portion (56e). Further, a sealing material (not shown) is formed on the contact surface with respect to the third upper partition member (80) at the second contact portion (56e).

  In the second upper partition member (54), a corner between the right side wall (55) and the rear side wall (57) and a corner between the central partition (56) and the rear side wall (57). In addition, an insertion part (58) is formed respectively. Reinforcing ribs (75) are inserted through the respective insertion portions (58). The upper end of each reinforcing rib (75) is fixed to the top plate (13) of the casing (11). These reinforcing ribs (75) constitute an attachment member to which the exhaust fan unit (87) is fixed and supported.

  The second upper partition member (54) is integrally formed with a horizontal partition portion (59) below the exhaust fan unit (87) (FIG. 4A). In the upper space (S3), an outdoor exhaust chamber (19b) is defined on the upper side of the horizontal partition (59), and an upper air supply channel (from the lower side of the horizontal partition (59) to the front panel (14) ( 70) is sectioned. The outdoor exhaust chamber (19b) communicates with the exhaust communication channel (68) shown in FIG. The upper end of the upper air supply channel (70) communicates with the indoor air supply chamber (19a). In addition, the sixth damper (D6) and the eighth damper (D8) of the supply damper partition plate (48b) face the upper supply passage (70).

  As shown in FIG. 10, the third upper partition member (80) includes a first side plate portion (81) formed along the right side wall portion (55) of the second upper partition member (54), and a second upper portion. A second side plate (82) formed along the central partition (56) of the partition member (54), a rear end of the first side plate (81), and a rear end of the second side plate (82) And an intermediate side plate portion (83) formed over the entire area. That is, the cross-sectional shape of the third upper partition member (80) is formed in a substantially U-shape (U-shape) having an open portion on the front side.

  In the third upper partition member (80), the lower ends of the side plate portions (81, 82) are respectively installed on the installation surfaces (55c, 56d) of the second upper partition member (54), and the intermediate side plate portion (83) The left and right end portions of the second upper partition member (54) are disposed so as to abut on the abutment portions (55b, 56e). When the third upper partition member (80) is arranged in this way, the space between the right side wall portion (55) and the central partition portion (56) is divided into two spaces (ie, the indoor air supply chamber (19a)). And an outdoor exhaust chamber (19b)). The third upper partition member (80) constitutes an air supply / exhaust partition portion that is detachably attached to the casing (11) so as to partition the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) forward and backward.

The air supply fan unit (84) includes an air supply fan (85) and an air supply side mounting plate (86) for supporting the air supply fan (85). Supply fan (85) is a centrifugal multiblade fan (a so-called sirocco fan). The air supply side mounting plate (86) includes a main body portion (86a) to which the motor of the air supply fan (85) is attached, a side plate portion (86b) formed on the left and right sides of the main body portion (86a), and a main body portion. (86a) and an upper plate part (86c) formed on the upper side. Each side plate part (86b) of the supply side mounting plate (86) is installed on each installation surface (55c, 56d) of the second upper partition member (54). Further, the right side plate portion (86b) and the upper plate portion (86c) of the supply side mounting plate (86) are connected to the above-described front panel (14) (see FIG. 1) via a fastening member such as a screw. Fixed.

The exhaust fan unit (87) includes an exhaust fan (88) and an exhaust side mounting plate (89) for supporting the exhaust fan (88). Exhaust fan (88) is a centrifugal multiblade fan (a so-called sirocco fan). The exhaust side mounting plate (89) includes a main body portion (89a) to which the motor of the exhaust fan (88) is mounted, and side plate portions (89b) formed on the left and right sides of the main body portion (89a). . Each side plate part (89b) of the exhaust side mounting plate (89) is installed on each installation surface (55c, 56d) of the second upper partition member (54). Further, these side plate portions (89b) are fixed to the top plate (13) via the reinforcing rib (75) described above.

<Configuration of refrigerant circuit>
The humidity control apparatus (10) includes a refrigerant circuit (30) to which the above-described compressor (31) and two adsorption heat exchangers (33a, 33b) are connected. The configuration of the refrigerant circuit (30) will be described with reference to FIG.

  The refrigerant circuit (30) is a closed circuit to which refrigerant pipes are connected, and is filled with refrigerant. In the refrigerant circuit (30), the refrigerant circulates to perform a vapor compression refrigeration cycle. A compressor (31), a four-way switching valve (32), a first adsorption heat exchanger (33a), and a second adsorption heat exchanger (33b) are connected to the refrigerant circuit (30).

  The compressor (31) has a variable capacity (operating frequency) by so-called inverter control.

  The four-way switching valve (32) switches the refrigerant circulation direction in the refrigerant circuit (30) so that the adsorption operation and the regeneration operation are alternately performed between the two adsorption heat exchangers (33a, 33b). Thus, the switching mechanism of the present invention is configured. The four-way switching valve (32) has first to fourth ports and is configured to be able to switch the communication state of these ports. The first port of the four-way switching valve (32) is connected to the discharge pipe (31a) of the compressor (31), and the third port of the four-way switching valve (32) is the suction pipe (31b) of the compressor (31). Connected to. The second port of the four-way switching valve (32) is connected to the gas side end of the first adsorption heat exchanger (33a), and the fourth port of the four-way switching valve (32) is connected to the second adsorption heat exchanger (33b). ) Gas side end. The four-way switching valve (32) communicates the first port and the fourth port to communicate the second port and the third port (first state indicated by the solid line in FIG. 11), the first port and the second port. It is configured to be switchable to a state (second state indicated by a broken line in FIG. 11) in which the two ports are communicated and the third port and the fourth port are communicated.

  The refrigerant circuit (30) is provided with a one-way circuit (36) in which the refrigerant flows in one direction even when the refrigerant circulation direction is switched by the four-way switching valve (32). The one-way circuit (36) includes a bridge circuit (36a) in which four check valves (CV-1, CV-2, CV-3, CV-4) are connected in a bridge shape, and a bridge circuit (36a ), A main circuit (36b) and a reheat circuit (36c) connected in parallel are provided.

Each check valve (CV-1, CV-2, CV-3, CV-4) of the bridge circuit (36a) allows the refrigerant to flow in the direction of the arrow in FIG. The flow of is prohibited. In the bridge circuit (36a), the liquid side end of the first adsorption heat exchanger (33a) is connected between the first check valve ( CV-1 ) and the second check valve (CV-2), The liquid side end of the second adsorption heat exchanger (33b) is connected between the third check valve (CV-3) and the fourth check valve (CV-4). The junction of the first check valve (CV-1) and the third check valve (CV-3), and the flow divider of the second check valve (CV-2) and the fourth check valve (CV-4) The main circuit (36b) and the reheat circuit (36c) are connected in parallel with each other. A main expansion valve (37) is connected to the main circuit (36b). The reheat circuit (36c) is connected to the reheat heat exchanger (35) on the upstream side and to the reheat side expansion valve (38) on the downstream side. The main expansion valve (37) and the reheat side expansion valve (38) are electrically operated flow rate control valves whose opening degree is variable, and are constituted by, for example, electronic expansion valves.

<Controller and sensor>
As shown in FIG. 11, the humidity control apparatus (10) includes a controller (150). The controller (150) controls each operation (dehumidification operation, humidification operation, ventilation operation, humidity control operation) of the humidity control apparatus (10), and constitutes a control unit of the present invention. Specifically, the controller (150) determines the operating capacity of the compressor (31) and the opening of each expansion valve (37,38) according to the contents set in the remote controller (100) and the detection value of each sensor. It is configured to adjust and further adjust the open / close state of each damper (D1 to D8) and the operating air volume of each fan (85, 88).

As shown in FIG. 3B, the humidity control apparatus (10) includes, as sensors, an inside air humidity sensor (91), an outside air humidity sensor (92), a first outside air temperature sensor (93), and a second sensor. And an outside air temperature sensor (94). The room air humidity sensor (91) is disposed in the upper room air flow path (69). The room air humidity sensor (91) detects the relative humidity of the room air (RA) taken into the room air suction chamber (19d). The outside air humidity sensor (92) and the first outside air temperature sensor (93) are disposed between the filter (26, 27) and the reheat heat exchanger (35) in the lower outside air flow path (63a). The outdoor air humidity sensor (92) detects the relative humidity of the outdoor air (OA) upstream of the reheat heat exchanger (35), and the first outdoor air temperature sensor (93) is upstream of the reheat heat exchanger (35). The temperature of the outdoor air (OA) on the side is detected. The second outside air temperature sensor (94) is arranged on the downstream side of the reheat heat exchanger (35) in the lower outside air flow path (63a). The second outside air temperature sensor (94) detects the temperature of the outdoor air (OA) on the downstream side of the reheat heat exchanger (35).

<Remote controller>
As shown in FIG. 11, the humidity control apparatus (10) includes a remote controller (100). The remote controller (100) is a wired remote controller connected to the controller (150) via a transmission line, and transmits and receives signals to and from the controller (150) to remotely control the humidity control device (10). It is configured.

  As shown in FIG. 12, the remote controller (100) includes a liquid crystal display unit (110) and a setting unit (120).

  The liquid crystal display unit (110) displays the operating state of the humidity control device (10) and the contents set by the user, and is provided in the upper half on the front surface of the remote control (100).

  The setting unit (120) is provided in the lower half on the front surface of the remote control (100), and various setting buttons (121 to 125) operated by the user are arranged. Specifically, a donut-shaped cursor button (121) is arranged at the center of the setting unit (120), and a menu / confirm button (122) is arranged inside the cursor button (121). . Also, around the cursor button (121), there is an operation switch button (123) in the upper left, a button (124) in the lower left, a run / stop button (125) in the upper right, and a cancel button (126) in the lower right. Has been.

The operation switching button (123) is a button for setting the operation content of the humidity control device (10), and every time the user presses, the operation content is changed to ventilation operation, dehumidification operation, humidification operation, humidity control operation. It is configured to switch periodically in order. The operation content set by the operation switching button (123) is displayed on the upper left in the liquid crystal display unit (110).

  The persistent button (124) is a button for setting a target humidity range for humidity control operation. Each time the button (124) is configured such that the user selects one of a plurality of humidity ranges and sets a target humidity range. Specifically, each time the user presses the button, the plurality of humidity ranges are displayed. It is a cyclic button that switches periodically in order.

The plurality of humidity ranges are stored in a storage unit (not shown) inside the remote controller (100). In the present embodiment, three humidity ranges A, B, and C shown in FIG. 13 are stored in the storage unit. In the humidity range C, an upper limit value and a lower limit value are set so as to include the humidity range in which the comfort is highest. The humidity range B, the lower limit value higher upper limit than the humidity range C, further humidity range A, the lower limit value higher upper limit than the humidity range B is set to be lower .

  Of these three humidity ranges, when the humidity range A is selected as the target humidity range, “strong” is displayed at the center of the liquid crystal display unit (110), and when the humidity range B is selected, “standard” is displayed. When the humidity range C is selected, “weak” is displayed.

-Driving action-
Next, the operation of the humidity control apparatus (10) will be described in order with reference to the drawings. In the humidity control apparatus (10), a dehumidifying operation, a humidifying operation, a ventilation operation, and a humidity adjusting operation can be selected.

<Dehumidifying operation>
The dehumidifying operation is an operation for dehumidifying the room, and is mainly performed in summer when the humidity is high. In this dehumidifying operation, before the operation starts, the user depresses the operation switching button (123) of the remote control (100) to set “dehumidifying operation”, and the user presses the cursor button (121) to set the target humidity. Is set. Thereafter, when the user presses the run / stop button (125), the dehumidifying operation is started.

  In the humidity control apparatus (10) during the dehumidifying operation, the first operation and the second operation are alternately repeated at predetermined time intervals.

  First, the first operation during the dehumidifying operation will be described.

  During the first operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the first state, the reheat side expansion valve (38) is almost fully closed, and the main expansion valve ( 37) is opened at a predetermined opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) condenses (heatsinks) in the second adsorption heat exchanger (33b), passes through the bridge circuit (36a), Flows through the main circuit (36b). In the main circuit (36b), the refrigerant is decompressed by the main expansion valve (37). The refrigerant decompressed by the main expansion valve (37) passes through the bridge circuit (36a), evaporates in the first adsorption heat exchanger (33a), and is sucked into the compressor (31). Thus, in the first operation, the first adsorption heat exchanger (33a) functions as an evaporator, and the second adsorption heat exchanger (33b) functions as a condenser.

  As shown in FIGS. 14 and 15, the air supply fan (85) and the exhaust fan (88) operate during the first operation. Then, the first damper (D1), the fourth damper (D4), the sixth damper (D6), and the seventh damper (D7) are opened, and the second damper (D2), the third damper (D3), 5 damper (D5) and 8th damper (D8) will be in a closed state.

  When the air supply fan (85) is operated, outdoor air (OA) is taken into the outdoor air suction chamber (19c) via the duct, and flows in the duct flow path (71) and the outdoor air inflow path (61) in this order. It flows into the lower outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the dehumidifying operation, since no refrigerant is supplied to the reheat circuit (36c), air is not heated in the reheat heat exchanger (35).

  The air that has passed through the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the first damper (D1) in this order, and then passes through the first adsorption heat exchanger (33a). To do. In the first adsorption heat exchanger (33a), moisture in the air is adsorbed by the adsorbent, and the air is dehumidified. That is, an adsorption operation is performed in the first adsorption heat exchanger (33a). After that, the air dehumidified by the first adsorption heat exchanger (33a) flows in order through the seventh damper (D7), the upper air supply channel (70), and the indoor air supply chamber (19a), and passes through the duct to the room. Supplied to the space as supply air (SA).

  On the other hand, when the exhaust fan (88) is operated, the room air (RA) is taken into the room air suction chamber (19d) via the duct on the room side, and the upper room air flow path (69) and the sixth damper (D6) are connected. It flows in order and passes through the second adsorption heat exchanger (33b). In the second adsorption heat exchanger (33b), moisture is desorbed from the adsorbent into the air, and the adsorbent is regenerated. That is, the regeneration operation is performed in the second adsorption heat exchanger (33b). Thereafter, the air used for regeneration of the adsorbent of the second adsorption heat exchanger (33b) is transferred to the fourth damper (D4), the intermediate exhaust passage (65), the exhaust communication passage (68), the outdoor exhaust chamber ( 19b) in order, and is discharged as exhaust air (EA) to the outdoor space via the duct.

  Next, the second operation during the dehumidifying operation will be described.

  During the second operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the second state, and the reheat side expansion valve (38) is almost fully closed, and the main expansion valve ( 37) is opened at a predetermined opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) condenses (heatsinks) in the first adsorption heat exchanger (33a), passes through the bridge circuit (36a), Flows through the main circuit (36b). In the main circuit (36b), the refrigerant is decompressed by the main expansion valve (37). The refrigerant decompressed by the main expansion valve (37) passes through the bridge circuit (36a), evaporates by the second adsorption heat exchanger (33b), and is sucked into the compressor (31). Thus, in the second operation, the first adsorption heat exchanger (33a) functions as a condenser, and the second adsorption heat exchanger (33b) functions as an evaporator.

  As shown in FIGS. 16 and 17, the air supply fan (85) and the exhaust fan (88) operate during the second operation. Then, the second damper (D2), the third damper (D3), the fifth damper (D5), and the eighth damper (D8) are opened, and the first damper (D1), the fourth damper (D4), 6 damper (D6) and 7th damper (D7) will be in a closed state.

  When the air supply fan (85) is operated, outdoor air (OA) is taken into the outdoor air suction chamber (19c) via the duct, and flows in the duct flow path (71) and the outdoor air inflow path (61) in this order. It flows into the lower outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the dehumidifying operation, since no refrigerant is supplied to the reheat circuit (36c), air is not heated in the reheat heat exchanger (35).

  The air that has passed through the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the second damper (D2) in this order, and then passes through the second adsorption heat exchanger (33b). To do. In the second adsorption heat exchanger (33b), moisture in the air is adsorbed by the adsorbent, and the air is dehumidified. That is, the adsorption operation is performed in the second adsorption heat exchanger (33b). After that, the air dehumidified by the second adsorption heat exchanger (33b) flows through the eighth damper (D8), the upper air supply channel (70), the indoor air supply chamber (19a) in this order, and passes through the duct to the room. Supplied to the space as supply air (SA).

  On the other hand, when the exhaust fan (88) is operated, the room air (RA) is taken into the room air suction chamber (19d) via the duct on the room side, and the upper room air flow path (69) and the fifth damper (D5) are connected. It flows in order and passes through the first adsorption heat exchanger (33a). In the first adsorption heat exchanger (33a), moisture is desorbed from the adsorbent into the air, and the adsorbent is regenerated. That is, the regeneration operation is performed in the first adsorption heat exchanger (33a). Thereafter, the air used for regeneration of the adsorbent in the first adsorption heat exchanger (33a) passes through the third damper (D3), and passes through the intermediate exhaust passage (65), the exhaust communication passage (68), and the outdoor. It flows through the exhaust chamber (19b) in order, and is discharged as exhaust air (EA) to the outdoor space via the duct.

<Humidification operation>
The humidification operation is an operation for humidifying the room, and is mainly performed in winter when the humidity is low. In this humidification operation, before the operation starts, the user presses the operation switching button (123) of the remote controller (100) to set “humidification operation”, and further, the user presses the cursor button (121) to set the target humidity. Is set. Thereafter, when the user presses the operation / stop button (125), the humidification operation is started.

  In the humidity control apparatus (10) during the humidifying operation, the first operation and the second operation are alternately repeated at predetermined time intervals.

  First, the first operation during the humidifying operation will be described.

  During the first operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the second state, the main expansion valve (37) is closed, and the reheat side expansion valve (38) is predetermined. It is opened at the opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) condenses (heatsinks) in the first adsorption heat exchanger (33a), passes through the bridge circuit (36a), It flows through the reheat circuit (36c). In the reheat circuit (36c), the high-pressure refrigerant in a gas-liquid two-phase state flows through the reheat heat exchanger (35), and the refrigerant radiates heat to the air (outdoor air (OA)). The refrigerant radiated by the reheat heat exchanger (35) is decompressed by the reheat side expansion valve (38). The refrigerant decompressed by the reheat side expansion valve (38) passes through the bridge circuit (36a), evaporates in the second adsorption heat exchanger (33b), and is sucked into the compressor (31). Thus, in the first operation, the first adsorption heat exchanger (33a) functions as a condenser, and the second adsorption heat exchanger (33b) functions as an evaporator.

  As shown in FIGS. 14 and 15, the air supply fan (85) and the exhaust fan (88) operate during the first operation. Then, the first damper (D1), the fourth damper (D4), the sixth damper (D6), and the seventh damper (D7) are opened, and the second damper (D2), the third damper (D3), 5 damper (D5) and 8th damper (D8) will be in a closed state.

  When the air supply fan (85) is operated, outdoor air (OA) is taken into the outdoor air suction chamber (19c) via the duct, and flows in the duct flow path (71) and the outdoor air inflow path (61) in this order. It flows into the lower outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the humidification operation, a refrigerant is appropriately supplied to the reheat heat exchanger (35), and the outdoor air (OA) is heated by the reheat heat exchanger (35).

  The air heated by the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the first damper (D1) in this order, and passes through the first adsorption heat exchanger (33a). pass. In the first adsorption heat exchanger (33a), air is humidified while moisture is desorbed from the adsorbent into the air to regenerate the adsorbent. That is, the regeneration operation is performed in the first adsorption heat exchanger (33a). After that, the air humidified by the first adsorption heat exchanger (33a) flows in order through the seventh damper (D7), the upper air supply channel (70), and the indoor air supply chamber (19a), and passes through the duct to the room. Supplied to the space as supply air (SA).

  On the other hand, when the exhaust fan (88) is operated, the room air (RA) is taken into the room air suction chamber (19d) via the duct on the room side, and the upper room air flow path (69) and the sixth damper (D6) are connected. It flows in order and passes through the second adsorption heat exchanger (33b). In the second adsorption heat exchanger (33b), moisture in the air is adsorbed by the adsorbent. That is, the adsorption operation is performed in the second adsorption heat exchanger (33b). After that, the air given moisture to the adsorbent of the second adsorption heat exchanger (33b) is the fourth damper (D4), the intermediate exhaust passage (65), the exhaust communication passage (68), the outdoor exhaust chamber (19b). ) In order, and is discharged as exhaust air (EA) to the outdoor space via the duct.

  Next, the second operation during the humidifying operation will be described.

  During the second operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the first state, the main expansion valve (37) is closed, and the reheat side expansion valve (38) is predetermined. It is opened at the opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) condenses (heatsinks) in the second adsorption heat exchanger (33b), passes through the bridge circuit (36a), It flows through the reheat circuit (36c). In the reheat circuit (36c), the high-pressure refrigerant in a gas-liquid two-phase state flows through the reheat heat exchanger (35), and the refrigerant radiates heat to the air (outdoor air (OA)). The refrigerant radiated by the reheat heat exchanger (35) is decompressed by the reheat side expansion valve (38). The refrigerant decompressed by the reheat side expansion valve (38) passes through the bridge circuit (36a), evaporates by the first adsorption heat exchanger (33a), and is sucked into the compressor (31). Thus, in the second operation, the first adsorption heat exchanger (33a) functions as an evaporator, and the second adsorption heat exchanger (33b) functions as a condenser.

  As shown in FIGS. 16 and 17, the air supply fan (85) and the exhaust fan (88) operate during the second operation. Then, the second damper (D2), the third damper (D3), the fifth damper (D5), and the eighth damper (D8) are opened, and the first damper (D1), the fourth damper (D4), 6 damper (D6) and 7th damper (D7) will be in a closed state.

  When the air supply fan (85) is operated, outdoor air (OA) is taken into the outdoor air suction chamber (19c) via the duct, and flows in the duct flow path (71) and the outdoor air inflow path (61) in this order. It flows into the lower outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the humidification operation, a refrigerant is appropriately supplied to the reheat heat exchanger (35), and the outdoor air (OA) is heated by the reheat heat exchanger (35).

  The air heated by the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the second damper (D2) in this order, and passes through the second adsorption heat exchanger (33b). pass. In the second adsorption heat exchanger (33b), air is humidified while moisture is desorbed from the adsorbent into the air to regenerate the adsorbent. That is, the regeneration operation is performed in the second adsorption heat exchanger (33b). Thereafter, the air humidified by the second adsorption heat exchanger (33b) flows through the eighth damper (D8), the upper air supply channel (70), and the indoor air supply chamber (19a) in this order, and passes through the duct to the room. Supplied to the space as supply air (SA).

  On the other hand, when the exhaust fan (88) is operated, the room air (RA) is taken into the room air suction chamber (19d) via the duct on the room side, and the upper room air flow path (69) and the fifth damper (D5) are connected. It flows in order and passes through the first adsorption heat exchanger (33a). In the first adsorption heat exchanger (33a), moisture in the air is adsorbed by the adsorbent. That is, an adsorption operation is performed in the first adsorption heat exchanger (33a). Thereafter, the air that has given moisture to the adsorbent of the first adsorption heat exchanger (33a) is the third damper (D3), the intermediate exhaust passage (65), the exhaust communication passage (68), the outdoor exhaust chamber (19b). ) In order, and is discharged as exhaust air (EA) to the outdoor space via the duct.

<Ventilation operation>
In the ventilation operation, outdoor air (OA) is supplied to the room as it is, and at the same time, the indoor air (RA) is discharged as it is to ventilate the room. In this ventilation operation, “ventilation operation” is set by the user pressing the operation switching button (123) of the remote controller (100) before the operation is started. Thereafter, when the user presses the operation / stop button (125), the ventilation operation is started.

In the ventilation operation, the first operation and the second operation are alternately repeated at predetermined time intervals while the compressor ( 31 ) of the refrigerant circuit ( 30 ) is stopped.

  In the first operation of the ventilation operation, an air flow similar to the first operation of the dehumidification operation and the first operation of the humidification operation is formed. In the second operation of the ventilation operation, the second operation of the dehumidification operation and the second operation of the humidification operation are performed. An air flow similar to operation is formed. During each operation, the outdoor air (OA) taken into the outside air suction chamber (19c) via the duct passes through each part in the humidity control device (10), and then from the indoor air supply chamber (19a). Supplied to the indoor space as supply air (SA). On the other hand, the indoor air (RA) taken into the indoor air suction chamber (19d) via the duct on the indoor side passes through each part in the humidity control device (10) and then passes from the outdoor exhaust chamber (19b) to the outdoor space. Discharged as exhaust air (EA).

<Humidity control operation>
The humidity control operation is an operation that selectively executes a dehumidifying operation for dehumidifying the room and a humidifying operation for humidifying the room. In this humidity control operation, “humidity control operation” is set by the user pressing the operation switching button (123) of the remote controller (100) before the operation is started. Furthermore, the target humidity range is set by the user pressing the button (124) each time and selecting one from a plurality of (in this case, three) humidity ranges. Thereafter, when the user presses the run / stop button (125), the humidity control operation is started.

  As shown in FIG. 18, in the humidity control operation, each operation (dehumidifying operation and humidifying operation) is stopped while the indoor humidity is lower than the upper limit value of the target humidity range and higher than the lower limit value. And when indoor humidity becomes higher than the upper limit of a target humidity range, dehumidification operation | movement will be started. In the dehumidifying operation, the same operation as the dehumidifying operation is performed so that the upper limit value of the target humidity range becomes the target humidity, and the indoor humidity is maintained at the upper limit value (target humidity) during the dehumidifying operation.

  Further, in the humidity control operation, when the indoor humidity becomes lower than the lower limit value of the target humidity range, the humidifying operation is started. In the humidification operation, an operation similar to the humidification operation is performed so that the lower limit value of the target humidity range becomes the target humidity, and the indoor humidity is maintained at the lower limit value (target humidity) during the humidification operation.

  Thus, in the humidity control operation, the dehumidifying operation and the humidifying operation are selectively performed, and the indoor humidity is controlled within the target humidity range (between the upper limit value and the lower limit value).

For example, the three humidity range shown in FIG. 13, (the largest difference between the upper limit and the lower limit) broadest humidity width the humidity range A is set as the target humidity range, the liquid crystal display unit (110) Is displayed as “weak”, and the humidity control operation with weak operation output (for example, the output of the compressor (31)) is performed.

Specifically, the humidity range A is set humidity operating the target humidity range, other than if the humidity range is set to the target humidity range, the target humidity of the dehumidifying operation is increased. Therefore, during the dehumidifying operation, the difference between the indoor humidity and the target humidity is reduced, and the operation output required to set the indoor humidity to the target humidity is reduced.

Further, the humidity range A is set humidity operating the target humidity range, than when other humidity range is set to the target humidity range, the target humidity of the humidified operation is lowered. Therefore, during the humidifying operation, the difference between the indoor humidity and the target humidity is reduced, and the operation output required to set the indoor humidity to the target humidity is reduced.

As described above, when the humidity range A is set to the target humidity range, the humidity adjustment operation in the energy saving mode in which the operation output is kept low is performed. Therefore, power consumption during the humidity control operation can be reduced.

Further, the three humidity range, (the smallest difference between the upper limit and the lower limit) narrowest humidity width when humidity range C is set as the target humidity range, the liquid crystal display unit (110), "strong ”Is displayed, and the humidity control operation with a strong operation output (for example, the output of the compressor (31)) is performed.

Specifically, the humidity range C is at the set humidity operating the target humidity range, other than if the humidity range is set to the target humidity range, the target humidity of the dehumidifying operation is increased. Therefore, during the dehumidifying operation, although the difference between the indoor humidity and the target humidity is increased and the operation output is increased, the indoor humidity can be kept low and the indoor comfort can be enhanced.

Further, the humidity range C is at the set humidity operating the target humidity range, than when other humidity range is set to the target humidity range, the target humidity of the humidified operation is lowered. For this reason, during the humidifying operation, the difference between the indoor humidity and the target humidity becomes large and the operation output becomes large, but the indoor humidity can be kept high and the indoor comfort can be enhanced.

  In addition, when the humidity range B is set as the target humidity range among the three humidity ranges, “standard” is displayed on the liquid crystal display unit (110), and the humidity output range is stronger than when the operation output is the humidity range A. Humidity control operation weaker than in the case of C is performed.

-Effect of the embodiment-
According to the above-described embodiment, when the humidity control operation is performed, the target humidity range is set by the user. During the humidity control operation, the controller (150) executes a dehumidifying operation with the upper limit value as the target humidity range when the indoor humidity becomes higher than the upper limit value of the target humidity range. When the value is lower than the lower limit value, the humidifying operation with the lower limit value as the target humidity is executed. As a result, the humidity in the room can be kept within the target humidity range (between the upper limit value and the lower limit value) without the user changing the target humidity setting during the humidity control operation, thereby improving user convenience. Can do.

Further, according to the embodiment, the user selects one of the three humidity ranges (humidity ranges A, B, and C) and sets the target humidity range. Then, the operation output during the humidity control operation is lowered as the humidity range of the humidity range selected by the user is wider (the difference between the upper limit value and the lower limit value of the humidity range is larger). As a result, the user selects a humidity range A having a relatively wide humidity range and performs humidity control with an emphasis on energy saving (reduction of power consumption), or selects a humidity range C having a relatively narrow humidity range. You can choose whether to perform humidity control with an emphasis on indoor comfort.

  Further, according to the above embodiment, the user selects the humidity range with the cyclic button (124). For example, if the user selects the humidity range with the cursor button (121), the user will be reminded that the target humidity will increase or decrease each time the cursor button (121) is pressed. There is a risk of inviting. However, in the above embodiment, since the user selects the humidity range with the cyclic button, misunderstanding on setting can be avoided.

  Moreover, according to the said embodiment, by switching the circulation direction of the refrigerant | coolant of a refrigerant circuit (30), adsorption | suction operation | movement is carried out between two adsorption | suction heat exchangers (33a, 33b) connected to the refrigerant circuit (30). The playback operation is alternately performed. Then, dehumidifying operation to supply the air dehumidified by the adsorption heat exchanger (33a, 33b) during the adsorption operation to the room and supplying air humidified by the adsorption heat exchanger (33a, 33b) during the regeneration operation to the room Humidity control operation that selectively performs the humidifying operation is performed. This makes it possible to perform humidity control for a long time easily, and even during long-time humidity control operation, the user can set the indoor humidity within the target humidity range (upper limit value and lower limit value without changing the target humidity setting). In between).

<< Other Embodiments >>
About the said embodiment, it is good also as the following structures.

In the above embodiment, the desorption part of the present invention and the humidification part of the present invention are configured by two adsorption heat exchangers (33a, 33b) connected to the refrigerant circuit (30) and carrying the adsorbent. . However, the dehumidifying unit of the present invention may have a configuration other than the above embodiment as long as it dehumidifies the air taken in by adsorbing moisture in the air to the adsorbent . Moreover, the humidification part of this invention may be the structure of those other than the above-mentioned embodiment as long as it humidifies the air taken in by desorbing moisture from the adsorbent into the air .

  In the above-described embodiment, so-called dehumidification ventilation operation (or humidification ventilation operation) is performed in which outdoor air (OA) is dehumidified (or humidified), supplied to the room, and indoor air (RA) is discharged. However, the method of dehumidifying (or humidifying) the room is not limited to this. For example, even if a so-called dehumidification circulation operation (or humidification circulation operation) is performed in which room air (RA) is dehumidified (or humidified) and returned to the room. I do not care.

  In the above embodiment, the target humidity range is set by the user selecting one of the three humidity ranges. However, the number of humidity ranges that can be selected by the user is not limited to this.

In the above embodiment, the wider the humidity range of the humidity range (in order of A, B, and C), the higher the upper limit value of the humidity range and the lower the lower limit value of the humidity range. The relationship with the lower limit value is not limited to this.

Further, in the above embodiment, the button (124) that periodically switches the humidity ranges A, B, and C in order is used for setting the target humidity range. However, the button for setting the target humidity range is not limited to this. For example, when the user presses, the humidity range A having the widest humidity range (the largest difference between the upper limit value and the lower limit value) is set as the target humidity range. A dedicated button for setting the humidity range A may be provided separately. By doing so, the user can set the humidity control operation in the energy saving mode with a single touch, for example, when taking a go-out to prevent indoor mold, and the convenience of the user can be improved.

  As described above, the present invention is useful for a humidity control apparatus that adjusts the humidity of a room.

10 Humidity control device
30 Refrigerant circuit
32 Four-way selector valve (switching mechanism)
33a First adsorption heat exchanger (dehumidification part, humidification part, adsorption heat exchanger)
33b Second adsorption heat exchanger (dehumidification part, humidification part, adsorption heat exchanger)
120 Setting section
124 Situation button (Setting button)
150 Controller (Controller)

Claims (5)

A dehumidifying part (33a, 33b) for dehumidifying the air;
A humidifying part (33a, 33b) for humidifying the air;
Select the dehumidifying operation to supply the air dehumidified by the dehumidifying unit (33a, 33b) to the room and the humidifying operation to supply the air humidified by the humidifying unit to the room so that the indoor humidity becomes the target humidity. A humidity control apparatus including a control unit (150) for controlling a humidity control operation to be performed automatically,
It has a setting unit (120) that sets the target humidity range from multiple humidity ranges.
When the indoor humidity becomes higher than the upper limit value of the target humidity range, the control unit (150) performs a dehumidifying operation using the upper limit value as the target humidity, and the indoor humidity is lower than the lower limit value of the target humidity range. Then, a humidity control apparatus that performs a humidifying operation using the lower limit as a target humidity. In claim 1,
A plurality of humidity ranges of the setting unit (120) have different differences between an upper limit value and a lower limit value, and the higher the difference, the higher the upper limit value and the lower the lower limit value. In claim 2,
The setting unit (120) has a dedicated button for setting a humidity range having the largest difference between the upper limit value and the lower limit value among the plurality of humidity ranges as a target humidity range. Wet equipment. In any one of Claims 1 thru | or 3,
The setting unit (120) has a setting button (124) for setting the target humidity range by periodically switching the humidity range between the plurality of humidity ranges in order each time the user presses the setting unit (120). Humidity control device characterized by. In any one of Claims 1 thru | or 4,
The dehumidifying section (33a, 33b) and the humidifying section (33a, 33b) are configured by two adsorption heat exchangers (33a, 33b) that are connected to a refrigerant circuit (30) that performs a refrigeration cycle and carry an adsorbent. And
The refrigerant circuit (30) includes a switching mechanism (32) that switches the refrigerant circulation direction and alternately performs the adsorption operation and the regeneration operation of the adsorbent in the two adsorption heat exchangers (33a, 33b). ,
The controller (150) includes a dehumidifying operation for supplying air dehumidified by the adsorption heat exchanger (33a, 33b) during the adsorption operation into the room, and the adsorption heat exchanger (33a, 33b) during the regeneration operation. A humidity control apparatus that controls a humidity control operation that selectively performs a humidifying operation for supplying air humidified in step 4 into a room.

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