JP7170184B2 - dehumidifier - Google Patents

Description

The present invention relates to a dehumidifier used in living spaces and the like.

A dehumidifying device has been put into practical use as a device for reducing humidity in a living space and increasing comfort.

The configuration includes a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are sequentially connected in a ring in a main body case having a suction port and a blowout port, It is provided with a dehumidifying rotor that releases moisture, a heating means that heats the air supplied to the moisture releasing section, and a blower means that blows the air.

Conventionally, in this type of dehumidifier, a first air passage for supplying air from the suction port to the moisture absorbing part and discharging from the blowing port, a heating means for sucking air from the suction port, a moisture releasing part, a heat absorber, a radiator and a third air passage for sucking air from the suction port and supplying it to the heat absorber and radiator in this order and discharging it from the blower port. It is (See Patent Document 1, for example).

JP 2016-87585 A

In such a conventional dehumidifier, the air volume can be adjusted only by the air blowing means. However, the optimum air volume of each air path differs depending on the operation mode and the indoor environment, and the air is not necessarily blown with the optimum air volume balance.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to optimize the balance of the air volume and improve the dehumidification performance.

In order to achieve this object, the dehumidifier according to the present invention comprises a body case having a suction port and a discharge port, a compressor, a radiator, an expander, and a heat absorber which are sequentially connected in an annular fashion to circulate the refrigerant. a refrigerating cycle, a dehumidifying rotor having a moisture absorption section and a moisture release section, heating means, air blowing means, and a third air sucked from the suction port by the air blowing means, supplied to the moisture absorption portion, and discharged from the air outlet. 1 air passage, a second air passage for sucking air from the suction port by the air blowing means, supplying the air to the heating means, the moisture releasing section, the heat absorber, and the heat radiator in this order and discharging it from the air outlet; a third air passage for sucking air from the suction port, supplying the air to the heat absorber and the heat radiator in this order, and discharging the air from the air outlet; provided ,
The air volume adjusting means is arranged between the suction port of the third air passage and the heat absorber, is arranged below the heating means or the dehumidification rotor, and is arranged in the direction in which the refrigerant flows in the heat absorber. It is intended to adjust the amount of air passing through the lower region of the heat absorber on the upstream side, thereby achieving the intended purpose.

According to the present invention, it has a main body case having an inlet and an outlet, a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are successively connected in an annular fashion to circulate a refrigerant, and a moisture absorption section and a moisture release section. a dehumidification rotor, heating means, air blowing means, a first air passage for sucking air from the suction port by the air blowing means, supplying the air to the moisture absorbing portion, and discharging the air from the air blowing port; a second air passage that sucks air from the heating means, the moisture releasing section, the heat absorber, and the heat radiator in this order and discharges it from the outlet; and the heat absorber that sucks air from the suction port. and a third air passage for supplying air to the radiator in order and discharging from the outlet, wherein the third air passage is provided with air volume adjustment means for adjusting air volume, and the air volume adjustment means is configured to adjust the third air flow. between the inlet of the passageway and the heat absorber, located below the heating means or the dehumidification rotor, and upstream of the heat absorber in the direction in which the refrigerant is flowing; By adjusting the amount of air passing through the area, it is possible to optimize the air amount balance and improve the dehumidification performance.

1 is an external perspective view of a dehumidifier according to an embodiment of the present invention; Cross-sectional view of the same dehumidifier The perspective view which shows the internal structure of the same dehumidification apparatus. The perspective view which shows the internal structure of the same dehumidification apparatus. The perspective view of the air volume adjustment member of the same dehumidifier FIG. 2 is a block circuit diagram for explaining the configuration of a control unit that controls the air volume adjustment member of the same dehumidifier.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a box-shaped main body case. A suction port 2 is arranged on a side surface of the main body case 1, and an air outlet 3 is arranged on an upper portion thereof.

Inside the main body case 1, a refrigeration cycle is installed in which a compressor 4, a radiator 5, an expander 6, and a heat absorber 7 are sequentially connected in an annular fashion to circulate the refrigerant. A blowing means 8 for blowing air is installed. Furthermore, a dehumidifying rotor 11 having a moisture absorbing portion 9 that adsorbs moisture from the air and a moisture releasing portion 10 that releases moisture to the air is provided, and the air supplied to the moisture releasing portion 10 and the heating for heating the moisture releasing portion 10 are provided. Means 12 are provided.

In the main body case 1, the dehumidifying rotor 11, the heat absorber 7, the radiator 5, and the air blowing means 8 are arranged in this order from the suction port 2. As shown in FIG. The dehumidification rotor 11 is formed in a disc shape and is rotatably erected so that its center axis is horizontal, and is rotated by the driving means 13 . Further, a heating means 12 is installed on the windward side of the moisture releasing section 10 of the dehumidifying rotor 11 . The moisture releasing part 10 and the heat absorber 7 are arranged to face each other.

In addition, a funnel-shaped water collecting means 14 is provided below the heat absorber 7 in the main body case 1 , and a water collecting tank 15 is provided below the water collecting means 14 so as to be detachable from the main body case 1 . are placed in

That is, dew is condensed in the heat absorber 7, and the condensed water is collected by the funnel-shaped water collection means 14 and flowed into the water collection tank 15. - 特許庁

Furthermore, a first air passage 16 , a second air passage 17 , and a third air passage 18 are provided inside the main body case 1 . The first air passage 16 is an air passage through which air is sucked from the suction port 2 by the air blowing means 8 , supplied to the moisture absorbing portion 9 , and discharged to the air blowing port 3 via the air blowing means 8 . The second air passage 17 sucks air from the suction port 2 by the air blowing means 8, supplies the air to the heating means 12, the moisture desorption part 10, the heat absorber 7, and the radiator 5 in this order, and supplies the air from the air outlet via the blowing means 8. It is an air passage to discharge.

Specifically, in the first air passage 16 , the indoor air sucked from the suction port 2 is supplied to the moisture absorbing portion 9 of the dehumidifying rotor 11 . At this time, the moisture in the air is absorbed by the moisture absorption part 9 and the air becomes dry. Furthermore, since heat of adsorption is generated when moisture is adsorbed, the indoor air is sucked by the air blowing means 8 mainly above the radiator 5 and the heat absorber 7 in a state where the humidity is reduced and the temperature is increased. , the air is blown into the room from the air outlet 3.

On the other hand, in the second air passage 17 , the room air warmed by the heating means 12 is supplied to the moisture releasing section 10 of the dehumidifying rotor 11 . In the moisture desorption part 10 , the moisture adsorbed by the moisture absorption part 9 is moved to the moisture desorption part 10 by the rotational drive of the dehumidification rotor 11 and released into the supplied air by heating by the heating means 12 . This high-humidity air is supplied to the heat absorber 7 and cooled to condense, and the moisture is taken out as water droplets. After that, the cooled air is supplied to the radiator 5 to cool the radiator 5 . Then, the air whose temperature has risen by taking heat from the radiator 5 is sucked into the air blowing means 8 . As for the refrigerating cycle, effective cooling of the radiator 5 increases the cooling efficiency when cooling the heat absorber 7 .

In the third air passage 18 , air is sucked from the suction port 2 , supplied to the heat absorber 7 and the radiator 5 in this order, and discharged from the air outlet 3 via the air blowing means 8 . That is, in the third air passage 18, the indoor air sucked from the suction port 2 is supplied to the heat absorber 7 and cooled to condense, and water is taken out as water droplets. After that, the cooled air is supplied to the radiator 5 to cool the radiator 5 . Then, the air whose temperature rises by taking heat from the radiator 5 is sucked into the air blowing means 8 .

Referring to FIG. 3, the internal structure will be described in more detail. Inside the main body case 1, a rotor support portion 19 that supports the dehumidification rotor 11 so as to be rotatable is provided. The rotor support 19 is also provided with heating means 12 and driving means 13 .

A feature of this embodiment is that an air volume adjustment means 20 is provided for adjusting the air volume of the third air passage. By controlling the air volume of the third air passage 18 with the air volume adjusting means 20, it is possible to send the optimum air volume to the heat absorber 7, and as a result, it is possible to improve the dehumidification performance. For example, when the indoor ambient temperature is low, the air volume adjustment means 20 reduces the air volume of the third air passage 18, thereby increasing the air volume of the second air passage 17 and reducing the air volume passing through the heat absorber 7. There is That is, cold air in the room is less likely to be supplied to the heat absorber 7 , and air warmed above the room temperature by the heating means 12 in the second air duct 17 is more likely to be supplied to the heat absorber 7 . In a general refrigeration cycle, when the ambient temperature becomes low, the dehumidified water in the heat absorber 7 freezes and adheres to the heat absorber 7 as frost, resulting in a significant reduction in dehumidification performance. Therefore, in order to remove the frost adhering to the heat absorber 7, the operation of the refrigerating cycle is periodically stopped and the defrosting operation is performed. When the heat absorber 7 is covered with frost, the dehumidifying performance is lowered and the dehumidifying performance cannot be obtained during the defrosting operation. By reducing the air volume of the third air passage 18 by the air volume adjustment means 20, air warmer than room temperature is supplied to the heat absorber 7, and the effect of preventing the heat absorber 7 from frosting can be expected. As a result, it is possible to improve the dehumidification performance.

Further, as shown in FIGS. 3 and 4 , the air volume adjusting means 20 is provided between the suction port 2 of the third air passage 18 and the heat absorber 7 . After the heat absorber 7, the air in the second air passage 17 and the air in the third air passage 18 are gradually mixed and headed toward the outlet 3. The third air passage 18 can be closed. As a result, it is possible to improve the dehumidification performance.

Also, the air volume adjusting means 20 is arranged below the heating means 12 or the dehumidifying rotor 11 . Since the air volume adjusting means 20 is arranged in the space below the heating means 12 or the dehumidifying rotor 11, the main body case 1 does not need to be enlarged.

Furthermore, in the second air passage 17, the air having a temperature higher than the room temperature immediately after the moisture desorption section 10 is blown to the downstream side of the heat absorber 7 in the direction in which the refrigerant flows (the upper part of the heat absorber 7), where the refrigerant temperature is relatively high. pass through the area. On the other hand, in the third air passage 18, the indoor air passes from the third air passage 18 to a region where the refrigerant temperature is relatively low on the upstream side (lower portion of the heat absorber 7) in the direction in which the refrigerant flows in the heat absorber 7. can be made As a result, by efficiently using the heat absorber 7, the dehumidification performance can be improved.

FIG. 3 shows a state in which the air volume adjusting means 20 is open. The configuration of the rotor support portion 19 will be described in more detail with reference to FIG. It has a communication opening 20b. The air volume adjusting means 20 includes a communicating opening 20b through which the third air passage 18 passes, and an air volume adjusting member 20a for opening and closing the communicating opening 20b. Thus, by providing the communication opening 20b and the air volume adjusting member 20a in the rotor supporting portion 19, there is no need to provide a new supporting member for supporting the air volume adjusting means 20, and the number of parts can be reduced.

FIG. 4 shows a state in which the air volume adjusting means 20 is closed. 4 and 5, the air volume adjustment member 20a includes a damper portion 22 that closes a communication opening 20b that opens in the horizontal direction, and a damper portion 22 that extends horizontally outward from the damper portion 22. A pair of extended shafts 23 , a support 24 provided on the rotor support 19 that supports the shafts 23 , and a motor (not shown) that rotates the damper 22 via the shafts 23 . , The damper portion 22 is configured to rotate from the communication opening 20b toward the suction port 2 side, that is, open from the downstream side to the upstream side in the blowing direction. That is, when the damper portion 22 is closed, the air blowing means 8 exerts a force in the direction of closing the air blowing means 8, thereby obtaining an effect of preventing chattering noise peculiar to rotating objects such as the refrigerating cycle and the air blowing means 8.

Also, the damper portion 22 may be configured to have a larger opening area than the communication opening 20b. As a result, the suction side can have a surface that overlaps with the rotor support portion 19 . As a result, it is possible to improve the occlusion level.

A water collection means 14 may be provided below the air volume adjusting member 20a. As described above, the water collecting means 14 is arranged below the heat absorber 7, but in this embodiment, it is configured to extend below the air volume adjusting member 20a. When operating in an atmosphere such as a low temperature and operating with the communication opening 20b closed, the space surrounded by the rotor support portion 19 and the heat absorber 7 is kept in a hot and humid state, and the air volume adjustment member 20a moves toward the heat absorber 7. Condensation may occur. Even if condensation occurs on the air volume adjusting member 20a, it can be collected in the water collection tank 15 without leaking to the outside, and as a result, usability for the user can be improved.

Further, the structure of the shaft portion 23 and the damper portion 22 will be described in detail. configuration. That is, when the damper portion 22 is in the open state (normal operating state), the damper portion 22 hits the water collecting means 14 arranged below the air volume adjusting member 20a and is supported, so that no load is applied to the motor portion. Therefore, as a result, the risk of failure of the motor section can be reduced.

A method of operating the air volume adjusting member 20a will be described in detail. As shown in FIGS. 3 and 6, the body case 1 includes a first temperature measurement section 25, a second temperature measurement section 27, a humidity measurement section 28, and a control section . The control unit 26 rotates the compressor 4 of the refrigeration cycle, the air blowing means 8, and the dehumidification rotor 11 based on the measured values of the first temperature measurement unit 25, the second temperature measurement unit 27, and the humidity measurement unit 28. It controls the driving means 13, the heating means 12, and the air volume adjusting member 20a.

Specifically, the first temperature measurement unit 25 is provided near the suction port 2 . The control unit 26 controls the air volume adjustment member 20a according to the temperature measured by the first temperature measurement unit 25 during the dehumidification operation. When the temperature measured by the first temperature measuring unit 25 is equal to or lower than the first predetermined temperature, the control unit 26 operates the compressor 4, the air blowing means 8, the driving means 13, and the heating means 12, It is preferable to employ a configuration in which the third air passage 18 is closed by the air volume adjusting member 20a. That is, by closing the third air passage 18, warm air that has passed through the heating means 12 is supplied to the heat absorber 7, and by suppressing the supply of cold room temperature air, the heat absorber 7 is prevented from frosting. be able to. It is possible to improve dehumidification performance. An example of the first predetermined temperature is 10 degrees to 20 degrees.

A second temperature measurement unit 27 is provided in the heat absorber 7 . The control unit 26 controls the air volume adjustment member 20a and the compressor 4 according to the temperature measured by the second temperature measurement unit 27 during the dehumidification operation. When the temperature measured by the second temperature measuring unit 27 is equal to or lower than the second predetermined temperature, the control unit 26 operates the air blowing unit 8, the driving unit 13, and the heating unit 12, and the air volume adjusting member 20a It is preferable that the third air passage 18 is closed and the compressor 4 is stopped. An example of the second predetermined temperature is 0 degrees to 4 degrees.

As described above, frost adheres to the heat absorber 7 at a certain temperature or lower. A configuration in which the third air passage 18 is closed is preferable. However, even when the third air passage is closed, or when the temperature of the first temperature measuring unit 25 is equal to or higher than the first predetermined temperature, frost may occur depending on conditions such as humidity and air volume. Therefore, it is preferable to provide a temperature measuring section in the heat absorber 7 like the second temperature measuring section 27 for detecting frost formation. That is, when the temperature detected by the second temperature measuring unit 27 is equal to or lower than the second predetermined temperature, the control unit 26 closes the third air passage 18 by the air volume adjusting member 20a and stops the compressor 4. , it should automatically switch to the defrosting mode. That is, by closing the third air passage 18, warm air that has passed through the heating means 12 is supplied to the heat absorber 7, and as a result, defrosting performance can be improved.

The humidity measuring section 28 is provided near the first temperature measuring section 25 . The control unit 26 controls the air volume adjustment member 20a according to the humidity measured by the humidity measurement unit 28 during the dehumidification operation. When the humidity measured by the humidity measuring unit 28 is equal to or lower than the predetermined humidity, the control unit 26 operates the compressor 4, the air blowing means 8, the driving means 13, and the heating means 12, and the air volume adjusting member 20a controls the second humidity. 3 It is preferable that the blowing path 18 is closed. An example of the second predetermined humidity is 30% to 50%.

Under high-humidity conditions, the air warmed by the heating means 12 passes through the moisture releasing section 10 and the temperature drops when the moisture adsorbed on the dehumidifying rotor 11 is desorbed. Under low humidity conditions, the amount of moisture supplied to the moisture absorbing portion 9 of the dehumidifying rotor 11 is reduced. That is, the amount of moisture released by the moisture release section 10 of the dehumidification rotor 11 is reduced, and there is a risk that the downstream side of the moisture release section 10 in the second air passage 17 will be overheated. When the humidity measured by the humidity measuring unit 28 is equal to or lower than the predetermined humidity, the air volume of the dehumidifying rotor 11 is increased by closing the third air passage 18 with the air volume adjusting member 20a. That is, the amount of moisture absorption and desorption increases, and the temperature rise downstream of the moisture desorption section 10 decreases. Furthermore, since the air volume of the second air passage also increases, the heat dissipation of the heating means 12 is promoted, and it works in the direction of suppressing the temperature rise downstream of the moisture releasing section 10 . As a result, it is possible to prevent excessive temperature rise of the resin around the moisture release section 10, and an improvement in safety can be expected.

As shown in FIGS. 2 and 3, the body case 1 is provided with a fourth air passage 29 . The fourth air passage 29 is an air passage through which air is sucked from the suction port 2 by the air blowing means 8 , supplied to the radiator 5 , and discharged to the air outlet 3 via the air blowing means 8 . When the temperature of the first temperature measuring unit 25 is equal to or higher than the third predetermined temperature, the control unit 26 operates the compressor 4, the air blowing unit 8, the driving unit 13, and the heating unit 12, and controls the air volume adjusting member 20a. It is preferable to have a configuration in which the third air passage 18 is closed by . The third predetermined temperature is higher than the first predetermined temperature, and an example of the third predetermined temperature is 30 degrees to 40 degrees.

The fourth air passage 29 is provided to promote heat dissipation from the radiator 5. Especially under high temperature conditions, the amount of heat absorbed by the heat absorber 7 increases, and the balance with the amount of heat released from the radiator 5 is lost. There is a risk that the internal pressure of 5 will rise and the compressor 4 will overheat. That is, by closing the third air passage 18, the air volume of the radiator 5 can be relatively increased, and as a result, the effect of lengthening the life of the compressor 4 can be expected.

INDUSTRIAL APPLICABILITY The dehumidifier according to the present invention can exhibit performance that meets the user's purpose, and is useful as a dehumidifier used in a living space or the like.

REFERENCE SIGNS LIST 1 body case 2 suction port 3 air outlet 4 compressor 5 radiator 6 expander 7 heat absorber 8 air blowing means 9 moisture absorbing section 10 moisture releasing section 11 dehumidifying rotor 12 heating means 13 driving means 14 water collecting means 15 water collecting tank 16 No. 1 air passage 17 second air passage 18 third air passage 19 rotor supporting portion 20 air volume adjusting means 20a air volume adjusting member 20b communication opening 22 damper portion 23 shaft portion 24 supporting portion 25 first temperature measuring portion 26 control portion 27 second second temperature measurement unit 28 humidity measurement unit 29 fourth air passage

Claims (7)

a body case having an inlet and an outlet;
a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are sequentially connected in an annular fashion to circulate the refrigerant;
a dehumidification rotor having a moisture absorption part and a moisture release part, heating means, air blowing means,
a first air passage for sucking air from the suction port by the air blowing means, supplying the air to the moisture absorbing portion, and discharging the air from the air outlet;
a second air passage for sucking air from the suction port by the air blowing means, supplying the air to the heating means, the moisture releasing section, the heat absorber, and the heat radiator in this order, and discharging the air from the blowout port;
a third air passage for sucking air from the suction port, supplying the air to the heat absorber and the radiator in this order, and discharging the air from the air outlet;
The third air passage is provided with air volume adjustment means for adjusting the air volume,
The air volume adjusting means is arranged between the suction port of the third air passage and the heat absorber, is arranged below the heating means or the dehumidification rotor, and is arranged in the direction in which the refrigerant flows in the heat absorber. A dehumidifying device characterized by adjusting the amount of air passing through a region below the heat absorber on the upstream side. a body case having an inlet and an outlet;
a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are sequentially connected in an annular fashion to circulate the refrigerant;
a dehumidification rotor having a moisture absorption part and a moisture release part, heating means, air blowing means,
a first air passage for sucking air from the suction port by the air blowing means, supplying the air to the moisture absorbing portion, and discharging the air from the air outlet;
a second air passage for sucking air from the suction port by the air blowing means, supplying the air to the heating means, the moisture releasing section, the heat absorber, and the heat radiator in this order, and discharging the air from the blowout port;
a third air passage for sucking air from the suction port, supplying the air to the heat absorber and the radiator in this order, and discharging the air from the air outlet;
The third air passage is provided with air volume adjustment means for adjusting the air volume,
The air volume adjustment means is
a communicating opening through which the third air passage passes;
an air volume adjusting member that opens and closes the communication opening,
The communication opening is provided in a rotor support portion that rotatably supports the dehumidification rotor,
The air volume adjustment member is
a damper section that closes the communication opening that opens in the horizontal direction;
a pair of shaft portions extending horizontally outward from the damper portion;
a support portion provided on the rotor support portion that supports the shaft portion;
a motor unit that rotates the damper unit via the shaft unit,
The dehumidifying device, wherein the damper portion rotates from the communication opening toward the suction port. The damper section
3. The dehumidifier according to claim 2, wherein the area of the communication opening is larger than that of the communication opening. The air volume adjusting means is provided between the suction port of the third air passage and the heat absorber,
Water collecting means is provided below the air volume adjusting member,
The shaft portion is provided on the lower end side of the damper portion,
The upper end side of the damper portion opens to the suction port side,
4. A dehumidifier according to claim 2, wherein said water collecting means supports said damper portion when said damper portion is opened. a first temperature measuring unit provided in the main body case;
a control unit for controlling the air volume adjustment member according to the temperature measured by the first temperature measurement unit, wherein the control unit controls the temperature measured by the first temperature measurement unit when the temperature measured by the first temperature measurement unit is equal to or lower than a first predetermined temperature; 5. The dehumidifier according to any one of claims 2 to 4, wherein said third air passage is closed by said air volume adjusting member. a second temperature measuring unit provided in the heat absorber;
a control unit that controls the air volume adjustment member and the refrigeration cycle according to the temperature measured by the second temperature measurement unit ;
When the temperature measured by the second temperature measuring unit is equal to or lower than a second predetermined temperature, the control unit closes the third air passage and stops the refrigeration cycle by the air volume adjusting member. The dehumidifier according to any one of claims 2 to 4 , characterized in that: a humidity measurement unit provided in the main body case;
a control unit that controls the air volume adjustment member according to the humidity measured by the humidity measurement unit;
5. The control unit according to any one of claims 2 to 4 , wherein the control unit closes the third air passage by the air volume adjustment member when the humidity measured by the humidity measurement unit is equal to or lower than a predetermined humidity. dehumidifier.

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