JP6307701B2 - Dehumidifier - Google Patents

Description

  The present invention relates to a dehumidifying apparatus that performs cooling and dehumidification using a refrigeration cycle.

  Conventionally, as is well known, this type of dehumidifier includes a main body case having an air inlet and an air outlet, a refrigeration cycle, a heat exchanging means, and a blower provided in the main body case. The cycle is formed by a compressor, and a radiator, an expansion unit, and a heat sink that are sequentially provided downstream of the compressor. The heat exchange unit includes a first heat exchange air passage that can perform heat exchange, and a first heat exchange air passage. The first heat exchange air passage, the heat absorber, and the heat exchange means of the heat exchange means for a part of the air sucked into the main body case from the intake port by the blower. The second heat exchange air passage, and the dehumidifying air passage that blows air to the air outlet through the radiator are sequentially formed (for example, the following Patent Literature 1 exists as a similar prior document) ).

JP 2005-214533 A

  The problem in the conventional example is to improve the feeling of use of the dehumidifier.

  That is, in the conventional thing, indoor air is dehumidified by cooling with a heat absorber and making it dew condensation. The dehumidified air is warmed to a temperature equal to or higher than the temperature of the room air by a radiator, and is dehumidified to be blown into the room. Therefore, when a dehumidifying device is used in a dressing room after bathing in summer, the warm air blown from the dehumidifying device may be directly received, and the feeling of use is poor.

  Then, this invention aims at the improvement of the usability | use_condition of a dehumidification apparatus.

In order to achieve the above object, the dehumidifier of the present invention comprises a main body case having an air inlet, a first air outlet, and a second air outlet, a refrigeration cycle and a heat exchange means provided in the main body case. The refrigeration cycle is formed by a compressor and a radiator, an expansion unit, and a heat absorber that are sequentially provided downstream of the compressor, and the heat exchange unit performs the first heat that can perform heat exchange. An air exchange path and a second heat exchange air path, and the first heat exchange air path of the heat exchange means for the air sucked into the main body case from the air inlet by the first air blowing means, A dehumidification air passage that blows air to the first air outlet through the heat sink, the second heat exchange air passage of the heat exchange means in sequence, and a second air blow means into the main body case from the intake port. Air sucked into the second outlet through the radiator A that warm air air passage, the said dividing Shimekazero, a bypass air passage for communicating the heat absorber and the intake port is provided, comprising a switching means in the bypass air passage, the upper surface of the heat exchange means An inlet of the first heat exchange air passage is provided, and an upper end of the heat exchange means and an upper end of the heat absorber are provided at substantially the same height, and the opening / closing means includes a rotation motor unit and the rotation The rotating plate portion is rotated by a motor portion, and the rotating plate portion protrudes upward from the upper ends of the heat absorber and the heat exchanging means when the bypass air passage is opened. To achieve the initial objectives.

As described above, the present invention includes a main body case having an air inlet, a first air outlet, and a second air outlet, and a refrigeration cycle and heat exchange means provided in the main body case. The heat exchanger is formed by a compressor and a radiator, an expansion device, and a heat absorber sequentially provided downstream of the compressor. The heat exchange device includes a first heat exchange air passage and a second heat exchange air passage that can perform heat exchange. The first heat exchange air passage of the heat exchange means, the heat absorber, and the heat exchange air that has been sucked into the main body case from the intake port by the first air blowing means. The dehumidifying air passage that blows air to the first air outlet sequentially through the second heat exchange air passage of the means, and the air that has been sucked into the main body case from the air inlet by the second air blowing means. through the vessel and a hot air air passage for blowing into the second air outlet, The dehumidifying air passage is provided with a bypass air passage communicating the inlet and the heat absorber, the bypass air passage is provided with an opening / closing means, and the first heat exchange air passage is provided on an upper surface of the heat exchange means. An opening is provided, and an upper end of the heat exchanging means and an upper end of the heat absorber are provided at substantially the same height, and the opening / closing means includes a rotating motor portion and a rotating plate rotated by the rotating motor portion. The rotating plate portion protrudes upward from the upper ends of the heat absorber and the heat exchanging means when the bypass air passage is opened , thereby improving the usability of the dehumidifying device. Is.

That is, the air that has been sucked into the main body case from the air inlet by the first air blowing means sequentially passes through the first heat exchange air passage of the heat exchange means, the heat absorber, and the second heat exchange air passage of the heat exchange means. A dehumidifying air passage that blows air to the first air outlet and a warm air air passage that uses the second air blowing means to blow air sucked into the main body case from the air inlet into the second air outlet through the radiator. Therefore, it is possible to receive only the cold air coming out from the first air outlet through the dehumidifying air passage. When the bypass air passage opening / closing means is opened, the bypass air passage opening / closing means is closed. Te, the relative humidity is high, Ru can blow air low dehumidified air temperature into the first air outlet.

  As a result, since the cool air blown from the dehumidifying device can be directly received, the usability can be improved even when the dehumidifying device is used in a dressing room after taking a bath in summer.

The perspective view of the dehumidification apparatus of embodiment of this invention Sectional view of the dehumidifying device of the present invention Exploded perspective view of heat exchange means of the dehumidifier of the present invention Block diagram of the dehumidifying device of the present invention The figure which shows the operation mode of the dehumidifier of this invention, and the temperature / humidity of blowing air

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, the main body case 1 of the dehumidifying device has a box shape, and is provided with an intake port 2 on the back side (the other side) of the outer peripheral surface, and a first air outlet 3 a and a second port on the upper side. The outlet 3b. The 1st blower outlet 3a is located near the front side (one side) in main part case 1, and the 2nd blower outlet 3b is located near the back side (other side) in main part case 1.

  As shown in FIG. 2, the main body case 1 includes a refrigeration cycle 4, heat exchange means 5, first air blowing means 6 a, and second air blowing means 6 b.

  The refrigeration cycle 4 includes a compressor 7, a radiator 8, a capillary tube 9 as an expansion means, and a heat absorber 10, which are connected in this order by a refrigerant pipe 11 to form a refrigeration cycle. This heat absorber 10 cools and dehumidifies air to be dehumidified. The radiator 8 and the heat absorber 10 are disposed to face each other. The radiator 8 is positioned closer to the back side (the other side) of the main body case 1, and the heat absorber 10 is positioned closer to the front side (one side) of the main body case 1. Between the radiator 8 and the heat absorber 10, the heat exchange means 5, the 1st ventilation means 6a, and the 2nd ventilation means 6b are provided in order from the heat absorber 10 side.

  The heat exchanging means 5 has a shape in which the lower surface of the rectangular parallelepiped is inclined, and is provided in the air path from the heat absorber 10 to the blower 6 between the heat radiator 8 and the heat absorber 10. As shown in FIG. 3, the heat exchanging means 5 is a cross-flow type heat exchanger, specifically, a first heat exchanging air passage 12 that is a vertical air passage and a horizontal air passage. A second heat exchange air passage 13 is provided. The heat exchange means 5 is, for example, a sensible heat exchanger such as a cross-flow type heat exchanger, and alternately stacks first heat transfer plates 14 and second heat transfer plates 15 made of resin or metal. Is formed. The first heat transfer plate 14 includes a number of first ribs 16 extending in the horizontal direction, and the second heat transfer plate 15 includes a number of second ribs 17 extending in the vertical direction. The first heat exchange air passage 12 is an air passage surrounded by the first heat transfer plate 14, the second heat transfer plate 15, and the plurality of second ribs 17. The second heat exchange air passage 13 is an air passage surrounded by the first heat transfer plate 14, the second heat transfer plate 15, and the plurality of first ribs 16.

  As shown in FIG. 2, the first air blowing means 6 a includes the first heat exchange air passage 12 of the heat exchange means 5, the heat absorber 10, and the heat exchange means 5 for the air taken into the main body case 1 from the air inlet 2. Then, the air is blown to the first air outlet 3a through the second heat exchange air passage 13 sequentially. This air passage is the dehumidifying air passage 18. The 1st ventilation means 6a is provided in the dehumidification air path 18 between the 2nd heat exchange air path 13 and the 1st blower outlet 3a. Specifically, when the first air blowing means 6 a is operated, air is sucked from the air inlet 2, and the sucked air is the inlet that is the upper surface of the heat exchanging means 5 of the first heat exchange air passage 12. It flows into 12a, heat-exchanges with air that has already been cooled and dehumidified by the heat absorber 10, is pre-cooled, and exits from the outlet 12b, which is the lower surface of the heat exchange means 5. Then, it is cooled and dehumidified through the heat absorber 10. The cooled and dehumidified air enters the heat exchange means 5 again from the inlet 13a of the heat exchange means 5 of the second heat exchange air passage 13, is heated by the air flowing in from the inlet 12a, exits from the outlet 13b, The air is blown out by the first blower 6a.

  The 2nd ventilation means 6b blows the air suck | inhaled in the main body case 1 from the inlet port 2 to the 2nd blower outlet 3b via the heat radiator 8. FIG. This air passage is the hot air passage 19. The 2nd ventilation means 6b is provided between the heat radiator 8 and the 2nd blower outlet 3b in the warm air flow path 19. As shown in FIG.

  As described above, the main body case 1 includes the dehumidifying air passage 18 and the hot air air passage 19.

  A feature of the present embodiment is that a dehumidifying air passage 18 and a hot air air passage 19 are provided in the air outlet 3.

  That is, the first heat exchange air passage 12 of the heat exchange means 5, the heat absorber 10, and the second heat of the heat exchange means 5, the air sucked into the main body case 1 from the air inlet 2 by the first air blowing means 6 a. The dehumidification air passage 18 that blows air to the first air outlet 3a sequentially through the exchange air passage 13 and the air blown into the main body case 1 from the air inlet 2 by the second air blowing means 6b through the radiator 8. Therefore, only the cold air coming out from the first air outlet 3a can be received through the dehumidifying air passage 18.

  As a result, since the cool air blown from the dehumidifying device can be directly received, the usability can be improved even when the dehumidifying device is used in a dressing room after taking a bath in summer.

  Moreover, the 1st blower outlet 3a is opened to the front side in the main body case 1 in the front upper part in the main body case 1, and the 2nd blower outlet 3b is opened on the top | upper surface in the main body case 1. . Separation means 20 is provided between the first air outlet 3a and the second air outlet 3b, and between the first air blowing means 6a and the second air blowing means 6b. By the separating means 20, the second air blowing means 6b sends air to the second air outlet 3b, and the first air blowing means 6a sends air to the first air outlet 3a or the second air outlet 3b. .

  That is, the separation means 20 can blow out the cold air dehumidified by the heat absorber 10 and the warm air warmed by the radiator 8 from the second air outlet 3b. The warmed warm air blows out from the second air outlet 3b, and the cold air dehumidified by the heat absorber 10 can be blown out from the first air outlet 3a. As a result, the cold air dehumidified from the first air outlet 3a is blown out, and the warm air is blown out from the second air outlet 3b. Therefore, it becomes easier to receive the cold air blown from the dehumidifier, and in the summer, Even when a dehumidifying device is used at a dressing room or the like, the feeling of use can be improved.

  Further, the first air blowing means 6 a and the second air blowing means 6 b include a motor part 21, a blade part 22, and a casing part 23.

  The motor unit 21 is fixed to the casing unit 23 and rotates a blade unit 22 fixed to a motor shaft 21 a extending from the motor unit 21 in the horizontal direction.

  The casing portion 23 has a scroll shape surrounding the blade portion 22 and has a first suction port 24, a first discharge port 26, a second suction port 25, and a second discharge port 27. . The first suction port 24 and the first discharge port 26 communicate with each other, and the second suction port 25 and the second discharge port 27 communicate with each other. The first suction port 24 communicates with the second heat exchange air passage 13, and the second suction port 25 communicates with the radiator 8. The first discharge port 26 communicates with the first air outlet 3a, and the second discharge port 27 communicates with the second air outlet 3b.

  The blade portion 22 includes a main plate portion 28, a first wing portion 29, and a second wing portion 30.

  The main plate portion 28 has a disc shape and includes a motor fixing portion 28a for fixing the motor shaft 21a of the motor portion 21 at the center. The main plate portion 28 is fixed at a right angle to the motor shaft 21a extending in the horizontal direction from the motor portion 21, and rotates on a vertical plane.

  The first wing portion 29 extends from one surface of the main plate portion 28 (the front surface side in the main body case 1), that is, from the first suction port 24 side toward the front surface of the main body case 1, and the vertical cross-sectional shape is an arc shape. It is a board. A large number of first wing portions 29 are annularly provided on the peripheral edge of the main plate portion 28.

  The second wing portion 30 extends from the other side surface of the main plate portion 28 (the back side of the main body case 1), that is, from the second suction port 25 side to the back side of the main body case 1, and the vertical cross-sectional shape is an arc shape. It is a board. A large number of second wing portions 30 are provided annularly on the peripheral edge of the main plate portion 28.

  That is, in the first air blowing means 6 a, the blade portion 22 rotates, and the air sucked from the first suction port 24 by the first wing portion 29 passes through the first discharge port 26 to the first It blows to the blower outlet 3a. In the second air blowing means 6 b, the blade portion 22 rotates, and the air sucked from the second suction port 25 by the second blade portion 30 passes through the second discharge port 27. The air is sent to the outlet 3b.

  The separation means 20 is an air path change damper 31 that blows dehumidified air blown from the first discharge port 26 to the first blower outlet 3a or the second blower outlet 3b. The air path change damper 31 is rotatably provided at the first discharge port 26. When the air path change damper 31 is rotated to one side, the first discharge port 26 and the second discharge port 27 are connected to the second outlet 3b. Communicate with. When the air path change damper 31 rotates to the other side, the first discharge port 26 communicates with the first air outlet 3a, and the second discharge port 27 communicates with the second air outlet 3b.

  Specifically, a communication passage 32 that communicates the first discharge port 26 and the first blower outlet 3a is provided between the first discharge port 26 and the first blower outlet 3a. An air path changing damper 31 is rotatably provided between the communication path 32 and the first discharge port 26. First, when the air path change damper 31 rotates to one side, the first discharge port 26 is disconnected from the communication passage 32 and communicates with the second air outlet 3b. The 2nd discharge outlet 27 is also interrupted | blocked by the communication path 32, and connects with the 2nd blower outlet 3b. Thereby, both the air ventilated from the 1st discharge port 26 and the 2nd discharge port 27 blows off from the 2nd blower outlet 3b. Next, when the air path change damper 31 rotates to the other side, the first discharge port 26 is blocked from the second discharge port 27 and communicates with the communication path 32. The 2nd discharge outlet 27 is interrupted | blocked with the communication path 32, and connects with the 2nd blower outlet 3b. As a result, the air blown from the first discharge port 26 is blown out from the first air outlet 3a, and the air blown from the second discharge port 27 is blown out from the second air outlet 3b.

  That is, when the air path change damper 31 rotates to the other side, the air sucked into the main body case 1 from the air inlet 2 by the first air blowing means 6 a is the first heat exchange air path of the heat exchanging means 5. 12, the heat absorber 10, the second heat exchange air passage 13 of the heat exchange means 5, the first suction port 24, the first discharge port 26, the air passage change damper 31, and the communication passage 32 through the first passage sequentially. It blows to the blower outlet 3a. In addition, the air sucked into the main body case 1 from the air inlet 2 by the second air blowing means 6b passes through the radiator 8, the second air inlet 25, and the second outlet 27 to the second air outlet 3b. It is blown into. In this way, the cold air dehumidified from the first air outlet 3a blows out, and the warm air blows out from the second air outlet 3b, so that the cold air blown from the dehumidifier can be directly received, and the bath can be used in summer. Even when a dehumidifying device is used at an upcoming dressing room or the like, the feeling of use can be improved.

  Further, the dehumidifying air passage 18 is provided with a bypass air passage 33 that allows the intake port 2 and the heat absorber 10 to communicate with each other, and the bypass air passage 33 is provided with an opening / closing means 34.

  Specifically, the upper surface of the heat exchange means 5 is provided with an inlet of the first heat exchange air passage 12, and the upper end of the heat exchange means 5 and the upper end of the heat absorber 10 are provided at substantially the same height. Yes. The opening / closing means 34 includes a rotation motor portion 34a and a rotation plate portion 34b rotated by the rotation motor portion 34a. The rotation plate portion 34b opens the heat absorber 10 and heat when the bypass air passage 33 is opened. It protrudes upward from the upper end of the exchange means 5.

  As a result, when the opening / closing means 34 of the bypass air passage 33 is opened and the air passage change damper 31 is rotated to the other side, much of the air sucked into the main body case 1 from the air inlet 2 by the first air blowing means 6a. Flows to the heat absorber 10 without passing through the first heat exchange air passage 12 of the heat exchange means 5, and the second heat exchange air passage 13, the first suction port 24, and the first heat exchange means 5 of the heat exchange means 5. The air is blown to the first air outlet 3a through the discharge port 26, the air path change damper 31, and the communication passage 32 in order.

  That is, the air cooled and dehumidified by the heat absorber 10 enters the heat exchanging means 5 again from the inlet 13 a of the heat exchanging means 5 of the second heat exchange air passage 13. Here, since most of the air sucked into the main body case 1 from the air inlet 2 by the first air blowing means 6a does not pass through the first heat exchange air passage 12 of the heat exchange means 5, the heat exchange means 5 Without being heated, the air flows out from the outlet 13b and is blown out of the machine by the first blower 6a. As a result, compared with the case where the opening / closing means 34 of the bypass air passage 33 is closed, dehumidified air having a high relative humidity but a low temperature can be blown to the first air outlet 3a.

  4 and 5, the main body case 1 includes a control unit 35 connected to the motor unit 21. The control unit 35 includes the compressor 7, the air path change damper 31, and the opening / closing means. 34 and the operation unit 36 are connected. The operation unit 36 is provided on the top surface of the main body case 1, and three modes of “dehumidification drying”, “dehumidification cold air”, and “cold air” can be selected.

  First, when the “dehumidifying and drying” mode is selected on the operation unit 36, the dehumidifying and drying operation is performed. During the dehumidifying and drying operation, the control unit 35 operates the first air blowing unit 6a, the second air blowing unit 6b, and the compressor 7, closes the opening / closing unit 34, and the air path change damper 31 rotates to one side. Move. Thereby, both the air ventilated from the 1st discharge port 26 and the 2nd discharge port 27 blows off from the 2nd blower outlet 3b. That is, air having a temperature higher than room temperature and a low relative humidity is blown.

  Next, when the “dehumidified cool air” mode is selected on the operation unit 36, the dehumidified cool air operation is performed. During the dehumidifying and drying operation, the control unit 35 operates the first air blowing unit 6a, the second air blowing unit 6b, and the compressor 7, closes the opening / closing unit 34, and the air path change damper 31 rotates to the other side. Move. As a result, the air sucked into the main body case 1 from the air inlet 2 by the second air blowing means 6 b passes through the radiator 8, the second air inlet 25, and the second outlet 27 to the second air outlet. It is blown to 3b. Further, the air sucked into the main body case 1 from the air inlet 2 by the first air blowing means 6 a is converted into the first heat exchange air passage 12 of the heat exchange means 5, the heat absorber 10, and the second heat exchange means 5. The air is blown to the first air outlet 3a through the heat exchange air passage 13, the first suction port 24, the first discharge port 26, the air passage change damper 31, and the communication passage 32 in this order. In this way, the cold air dehumidified from the first air outlet 3a blows out, and the warm air blows out from the second air outlet 3b, so that the cold air blown from the dehumidifier can be directly received, and the bath can be used in summer. Even when a dehumidifying device is used at an upcoming dressing room or the like, the feeling of use can be improved.

  Finally, when the “cold air” mode is selected on the operation unit 36, the cold air operation is performed. During the cold air operation, the control unit 35 operates the first air blowing unit 6a, the second air blowing unit 6b, and the compressor 7, opens the opening / closing unit 34, and the air path change damper 31 rotates to the other side. To do.

  As a result, the air sucked into the main body case 1 from the air inlet 2 by the second air blowing means 6b passes through the radiator 8, the second air inlet 25, and the second outlet 27 to the second air outlet. It is blown to 3b. Further, most of the air sucked into the main body case 1 from the air inlet 2 by the first air blowing means 6a flows to the heat absorber 10 without passing through the first heat exchange air passage 12 of the heat exchange means 5, Air is blown to the first air outlet 3a through the second heat exchange air passage 13, the first suction port 24, the first discharge port 26, the air passage change damper 31, and the communication passage 32 in order of the heat exchange means 5. Is done.

  That is, the air cooled and dehumidified by the heat absorber 10 enters the heat exchanging means 5 again from the inlet 13 a of the heat exchanging means 5 of the second heat exchange air passage 13. Here, since most of the air sucked into the main body case 1 from the air inlet 2 by the first air blowing means 6a does not pass through the first heat exchange air passage 12 of the heat exchange means 5, the heat exchange means 5 Without being heated, the air flows out from the outlet 13b and is blown out of the machine by the first blower 6a. As a result, compared with the case where the opening / closing means 34 of the bypass air passage 33 is closed, dehumidified air having a high relative humidity but a low temperature can be blown to the first air outlet 3a.

  As described above, the present invention includes a main body case having an air inlet, a first air outlet, and a second air outlet, and a refrigeration cycle and heat exchange means provided in the main body case. The heat exchanger is formed by a compressor and a radiator, an expansion device, and a heat absorber sequentially provided downstream of the compressor. The heat exchange device includes a first heat exchange air passage and a second heat exchange air passage that can perform heat exchange. The first heat exchange air passage of the heat exchange means, the heat absorber, and the heat exchange air that has been sucked into the main body case from the intake port by the first air blowing means. The dehumidifying air passage that blows air to the first air outlet sequentially through the second heat exchange air passage of the means, and the air that has been sucked into the main body case from the air inlet by the second air blowing means. And a warm air passage for blowing air to the second air outlet through the vessel And than, thereby, those capable of improving the usability of the dehumidifier.

  That is, the air that has been sucked into the main body case from the air inlet by the first air blowing means sequentially passes through the first heat exchange air passage of the heat exchange means, the heat absorber, and the second heat exchange air passage of the heat exchange means. A dehumidifying air passage that blows air to the first air outlet and a warm air air passage that uses the second air blowing means to blow air sucked into the main body case from the air inlet into the second air outlet through the radiator. Therefore, it is possible to receive only the cold air coming out from the first air outlet through the dehumidifying air passage.

  As a result, since the cool air blown from the dehumidifying device can be directly received, the usability can be improved even when the dehumidifying device is used in a dressing room after taking a bath in summer.

  Therefore, it is expected to be utilized as a dehumidifying device for home use or office use.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Air inlet 3a 1st blower outlet 3b 2nd blower outlet 4 Refrigeration cycle 5 Heat exchange means 6a 1st ventilation means 6b 2nd ventilation means 7 Compressor 8 Radiator 9 Capillary tube 10 Heat absorber 11 Refrigerant piping 12 First heat exchange air passage 13 Second heat exchange air passage 14 First heat transfer plate 15 Second heat transfer plate 16 First rib 17 Second rib 18 Dehumidification air passage 19 Hot air Path 20 Separating means 21 Motor portion 21a Motor shaft 22 Blade portion 23 Casing portion 24 First suction port 25 Second suction port 26 First discharge port 27 Second discharge port 28 Main plate portion 28a Motor fixing unit 29 First Blade portion 30 second blade portion 31 air passage change damper 32 communication passage 33 bypass air passage 34 opening / closing means 34a rotation motor portion 34b rotation plate portion 35 control portion 36 operation portion

Claims (2)

A main body case having an air inlet, a first air outlet, and a second air outlet, and a refrigeration cycle and heat exchange means provided in the main body case. The refrigeration cycle includes a compressor, the compressor The heat exchange means is provided with a first heat exchange air passage and a second heat exchange air passage that can perform heat exchange. The air that has been sucked into the main body case from the air inlet by the first air blowing means, the first heat exchange air passage of the heat exchange means, the heat absorber, and the second heat exchange of the heat exchange means. A dehumidifying air passage that blows air to the first air outlet sequentially through the air passage, and air that has been sucked into the main body case from the air inlet by the second air blowing means via the radiator. and a warm air air passage for blowing air into the outlet, the removal Shimekazero, the A bypass air passage that communicates the air vent with the heat absorber is provided, the bypass air passage is provided with an opening / closing means, the top surface of the heat exchange means is provided with an inlet of the first heat exchange air passage, and the heat exchange means The upper end of the heat sink and the upper end of the heat absorber are provided at substantially the same height, and the opening / closing means includes a rotation motor portion and a rotation plate portion rotated by the rotation motor portion. The dehumidifying device is characterized in that the plate portion projects upward from the upper ends of the heat absorber and the heat exchange means when the bypass air passage is opened . A main body case having an air inlet, a first air outlet, and a second air outlet, and a refrigeration cycle and heat exchange means provided in the main body case. The refrigeration cycle includes a compressor, the compressor The heat exchange means is provided with a first heat exchange air passage and a second heat exchange air passage that can perform heat exchange. The air that has been sucked into the main body case from the air inlet by the first air blowing means, the first heat exchange air passage of the heat exchange means, the heat absorber, and the second heat exchange of the heat exchange means. A dehumidifying air passage that blows air to the first air outlet sequentially through the air passage, and air that has been sucked into the main body case from the air inlet by the second air blowing means via the radiator. A hot air passage that blows air to the air outlet, and the dehumidifying air passage includes A bypass air passage for communicating the air inlet and the heat absorber is provided, comprising a switching means in the bypass air passage, the control unit connected to the first blowing means and said second blowing means within the body casing And the control unit operates the first air blowing unit, the second air blowing unit, and the compressor during the dehumidifying cold air operation, closes the opening / closing unit, and operates the first air blowing during the cold air operation. means and said second blowing means, and wherein the compressor is operated, dehumidification you characterized by opening the switching means device.

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