CN1922451B - Humidity control device - Google Patents

Abstract

A humidity controller (10) is provided with a refrigerant circuit (60). The refrigerant circuit (60) has first and second heat exchangers (61, 62) carrying an adsorptive agent and circulates a refrigerant to perform a freezing cycle. Further, in the refrigerant circuit (60), the direction of circulation of the refrigerant is reversible. The first and second heat exchangers (61, 62) are installed in a casing (11). In the humidity controller (10), air flow paths are switched so that first air passes through either of the heat exchangers (61, 62) that works as an evaporator and second air passesthrough the other that works as a condenser. A compressor (63), an expansion mechanism (65), and a four-way selector valve (64) of the refrigerant circuit (60) are installed in the casing (11) together with the heat exchangers (61, 62).

Description

Humidity control device

technical field

The present invention relates to a humidity control device for adjusting the humidity of air, in particular to a technique for performing refrigeration cycle for regeneration and cooling of adsorbent.

Background technique

Conventionally, for example, there is a humidity control device disclosed in Patent Document 1 that uses an adsorbent and a refrigeration cycle to adjust the humidity of air. The humidity control device has two adsorption units. Each adsorption unit includes a mesh container filled with an adsorbent and a refrigerant tube of a drum mesh container. The refrigerant pipes of each adsorption unit are connected to a refrigerant circuit that performs a refrigeration cycle. The humidity control device is provided with a damper for switching the air sent to each adsorption unit.

During the operation of the humidity control device, the compressor of the refrigerant circuit is operated, and a refrigeration cycle is performed in which one of the two adsorption units is an evaporator and the other is a condenser. In the refrigerant circuit, the circulation direction of the refrigerant is switched by operating the four-way switching valve, and each adsorption unit alternately functions as an evaporator or a condenser.

In the humidification operation of the humidity control device, the supply air flowing from the outside to the room is introduced into an adsorption unit serving as a condenser, and the supply air is humidified with moisture detached from the adsorbent. At this time, the exhaust gas flowing from the indoor to the outdoor is introduced into the adsorption unit that becomes an evaporator, and the moisture in the exhaust gas is recovered by the adsorbent. On the other hand, in the dehumidification operation of the humidity control device, the supply air flowing from the outdoors to the indoors is introduced into the adsorption unit serving as an evaporator, and the moisture in the intake air is adsorbed by the adsorbent. At this time, the exhaust gas flowing from the indoor to the outdoor is introduced into the adsorption unit that becomes the condenser, and the moisture detached from the adsorbent is discharged to the outdoor together with the exhaust gas.

As a unit having the same function as the above-mentioned adsorption unit, there is a heat exchange member disclosed in Patent Document 2, for example. In this heat exchange member, a plate-shaped fin is provided around the copper tube, and an adsorbent is supported on the surface of the copper tube or the fin. And, the heat exchange member heats or cools the adsorbent by the fluid flowing in the copper tube.

In addition, as the above-mentioned humidity control device, there is also a humidity control device disclosed in Patent Document 3. In this humidity control device, an air passage connecting an outdoor space and an indoor space is formed in a casing, and an adsorption element is provided in the air passage. Then, by making the outdoor air OA flow toward the adsorption element, for example, the moisture of the outdoor air OA is adsorbed, and supplied as dehumidified air (humidity-conditioned air (SA)) to the indoor space. Also, for example, the moisture adsorbed on the adsorption element is dehydrated, the moisture is added to the outdoor air OA, and supplied as humidified air (humidity-conditioned air (SA)) to the indoor space.

Patent Document 1: Japanese Patent Application Laid-Open No. 8-189667

Patent Document 2: Japanese Patent Laid-Open No. 7-265649

Patent Document 3: Japanese Patent Laid-Open No. 9-329371

However, in the conventional humidity control device described above, it is desired to increase the condensation temperature of the refrigerant in the heat exchanger as much as possible and to increase the regeneration temperature of the adsorbent. This is because, when the regeneration temperature of the adsorbent is high, the amount of moisture detached from the adsorbent increases, and the efficiency of the humidity control device improves.

In addition, if a part of the refrigerant circuit is arranged outside the casing, the refrigerant circuit must be connected with piping when installing the humidity control device, and the installation work is troublesome.

Contents of the invention

In view of the above problems, the object of the present invention is to increase the regeneration amount of the adsorbent, improve its efficiency, and facilitate the installation work by arranging the refrigerant circuit in the casing.

In order to achieve the above purpose, in the present invention, the compressor of the refrigerant circuit 60, the expansion mechanism 65, the reversing mechanism 64 for reversing the refrigerant circulation direction, and the heat exchangers 61, 62 are arranged in the housing 1 together. .

Specifically, in the humidity control device of the first invention, one of the dehumidified first air and the humidified second air is supplied indoors, and the other is discharged outdoors. It also has a refrigerant circuit 60, a housing 11 and a switching mechanism. The refrigerant circuit 60 is connected with the first and second heat exchangers 61 and 62 supporting the adsorbent to perform a refrigeration cycle, and the refrigerant circulation direction can be reversed. Turn, the housing 11 is provided with the heat exchangers 61 and 62 in the internal air passage, and the switching mechanism controls the circulation path of the air in the housing 11 according to the circulation direction of the refrigerant in the refrigerant circuit 60 Switching is performed so that the first air passes through one of the heat exchangers 61 and 62 that becomes the evaporator, and the second air passes through the one that becomes the condenser, and an air supply fan 25 provided in the housing 11 is also provided. and the exhaust fan 26, the casing 11 is formed in a box shape, the compressor 63 of the refrigerant circuit 60, the expansion mechanism 65 and the reversing mechanism 64 for reversing the refrigerant circulation direction and the heat exchanger 61 and 62 are arranged together in the housing 11, and the internal space of the housing 11 is divided into the first space 17 along one side plate of the housing 11, that is, the fan side side plate 13, and the remaining space. In the second space 18, the air supply fan 25 and the exhaust fan 26 are arranged in the first space 17, and the first and second heat exchangers 61 and 62 and the switching mechanism are arranged in the second space 18.

With the above configuration, in the refrigerant circuit 60, two refrigeration cycle operations are alternately repeated by switching the reversing mechanism 64 . In the first refrigeration cycle operation, the second air is sent to the first heat exchanger 61 serving as a condenser, and the first air is sent to the second heat exchanger 62 serving as an evaporator. In addition, in the first heat exchanger 61, after being heated by the refrigerant, the adsorbent is regenerated, and the moisture detached from the adsorbent is added to the second air. In addition, in the second heat exchanger 62, the moisture in the first air is adsorbed by the adsorbent, and the heat of adsorption generated at this time is absorbed by the refrigerant. On the other hand, in the operation of the second refrigeration cycle, the switching mechanism is used to switch to a flow path different from that in the operation of the first refrigeration cycle, and the first air is sent to the first heat exchanger 61 which becomes the above-mentioned evaporator, and the second The air is sent to the second heat exchanger 62 serving as a condenser. On the other hand, in the first heat exchanger (61), moisture in the first air is adsorbed by the adsorbent, and the heat of adsorption generated at this time is absorbed by the refrigerant. In the second heat exchanger 62, after being heated by the refrigerant, the adsorbent is regenerated, and the moisture detached from the adsorbent is added to the second air.

In the present invention, the humidity control device 10 supplies dehumidified first air or humidified second air into the room. That is, the humidity control device 10 may be a humidity control device that supplies only the dehumidified first air to the room, or may supply only the humidified second air to the room. This humidity control device 10 may be a humidity control device that switches between an operation in which dehumidified first air is supplied indoors and an operation in which humidified second air is supplied indoors.

In addition, in the present invention, since the compressor 63 of the refrigerant circuit 60, the expansion mechanism 65, the reversing mechanism 64 for reversing the refrigerant circulation direction, and the heat exchangers 61 and 62 are arranged in the housing 11, it is not necessary to connect the various elements of the refrigerant circuit 60 with pipes when installing the humidity control device, and it can be shipped with the refrigerant filled. Therefore, its setup job is very easy.

In addition, since the refrigerant circuit 60 is accommodated in the case 11, the connecting pipe can be shortened, thereby reducing the pressure loss in the pipe and increasing the condensation temperature. Therefore, the temperature of the refrigerant at the time of regeneration becomes high, the amount of regeneration of the adsorbent increases, and the efficiency of the humidity control device can be improved.

With the above structure, in the divided space of the casing 11, the air supply fan 25 and the exhaust fan 26 are arranged in the first space along the fan side side plate 13, and the first and second heat exchangers are arranged in the second space 18. 61, 62 and switching mechanism. Therefore, compared with the case where the fans 25 and 26 are arranged on the diagonal line of the housing 11, the overall compactness of the device can be greatly improved. Therefore, it is possible to obtain a humidity control device that can be easily installed in a small area such as the back of the ceiling.

According to a second invention, in the first invention, the compressor 63 is arranged in a space separated from the air passage inside the casing 11 .

According to the above structure, since the compressor 63 is located outside the air passage, the air supplied to the room will not be adversely affected by the heat radiated from the compressor 63 itself.

According to a third invention, in the first invention, the compressor 63 is disposed in an air passage inside the casing 11 .

According to the above structure, since the compressor 63 is installed in the air passage, the radiated heat of the compressor 63 itself can be effectively used. For example, when the compressor 63 is arranged in the flow path of the air supplied to the room, the heating effect is improved due to the increase in the temperature of the air. Therefore, it is advantageous for the humidity control device that gives priority to the heating effect. On the other hand, when the compressor 63 is arranged in the circulation path of the air discharged to the outside, the excess heat of the compressor 63 can be released by discharging the air that absorbs the radiant heat of the compressor 63 itself to the outside. to the outdoors. Therefore, it is beneficial to the humidity control device that gives priority to the cooling effect, and can discharge the heat of the compressor 63 to the outside, thereby improving the efficiency of the humidity control device.

According to a fourth invention, in any one of the first to third inventions, the casing 11 is respectively provided with: an air supply port 24 for connecting the pipes 72 and 74 communicating with the room, and an internal air suction port. Port 22, and the exhaust port 23 and the outside air suction port 21 for connecting the pipes 71 and 73 communicated with the outside.

According to the above configuration, the humidity control device can be arranged at an optimal position by using the ducts 71, 72, 73, 74 that communicate the indoor and outdoor areas with the casing 11.

According to a fifth invention, in any one of the first to third inventions, the housing 11 is provided with an air supply port 24 and an internal air suction port for directly communicating with the interior of the housing 11. 22, and the exhaust port 23 and the outside air suction port 21 that will be connected with the pipelines 72 and 74 communicated with the outside.

According to the above-mentioned structure, it is not necessary to provide the ducts 72 and 74 communicating with the room, and the space such as the ceiling can be effectively used.

According to a sixth invention, in the first invention, the compressor 63 of the refrigerant circuit 60 is disposed between the air supply fan 25 and the exhaust fan 26 in the first space 17 of the casing 11 .

Here, two heat exchangers 61, 62 are arranged in the casing 11. In order to ensure the humidity control capability, the heat exchangers 61, 62 need to be of a certain size, and a certain temperature is generated between the air supply fan 25 and the exhaust fan 26. degree of space. On the other hand, according to the said 7th invention, the compressor 63 can be installed in this vacant space effectively, and the compactness of a humidity control apparatus can be attained further.

According to the seventh invention, in the first invention, the first and second heat exchangers 61 and 62 are arranged such that the air is directed toward the thickness of the casing 11 parallel to the plate surface of the fan side side plate 13 . direction through. With the above configuration, when the humidity control device is placed horizontally to be embedded in the ceiling, if the two heat exchangers 61 and 62 are also placed substantially horizontally, a small thickness humidity control device can be obtained.

According to an eighth invention, in the first invention, the first and second heat exchangers 61 and 62 are arranged so that air passes in a direction perpendicular to the thickness direction of the housing 11, and the housing 11 The thickness direction of the body 11 is parallel to the surface of the fan-side side plate 13 .

With the above configuration, when the humidity control device is placed horizontally to be embedded in the ceiling, if the two heat exchangers 61 and 62 are also placed substantially horizontally, a small thickness humidity control device can be obtained.

According to the ninth invention, in the above-mentioned first invention, the air supply fan 25 and the exhaust fan 26 are composed of multi-bladed fans that suck air from the side of the fan housing and blow it out to the front, and the axes of the impellers are arranged Oriented to the thickness direction of the housing 11 parallel to the surface of the fan-side side plate 13 .

According to the above-mentioned structure, if the overall size of the fan in the axial direction of the impeller is small relative to the diameter of the impeller, the thickness of the humidity control device can be reduced.

According to the tenth invention, in the ninth invention, an air supply port 24 communicating with the room and an inner side plate 14 and 15 perpendicular to the fan side side plate 13 of the housing 11 are provided. The air intake port 22 is provided with an exhaust port 23 and an external air intake port 21 communicating with the outside on the other side, and is formed adjacent to each other in the second space 18 in a direction perpendicular to the fan-side side plate 13. The first heat exchange chamber 41 containing the first heat exchanger 61 and the second heat exchange chamber 42 containing the second heat exchanger 62 are provided with a first inflow path 43 and a first outflow path 44 for air. , the second inflow channel 45 and the second outflow channel 46 of air, the first inflow channel 43 and the first outflow channel 44 extend along one side of the continuous side surfaces of the two heat exchange chambers 41, 42 and are on the side of the housing 11 The thickness direction is overlapped, and the second inflow channel 45 and the second outflow channel 46 extend along the other side of the two heat exchange chambers 41 and 42 and are overlapped in the thickness direction of the casing 11. The thickness direction of the body 11 is parallel to the plate surface of the fan-side side plate 13, and the outflow channels 44, 46 communicate with the first space 17 through the fan-side communicating ports 75, 76 provided on the partition plate 31, so that The partition plate 31 is provided inside the casing 11 and partitions the inside of the casing 11 into a first space 17 and a second space 18 . With the above-mentioned structure, the air entering the casing 11 flows into the first or second inflow channel 45, and is dehumidified or humidified by the first or second heat exchanger 61, 62, and then the air in the first outflow channel 44 passes through the fan side. The air in the second outflow path 46 is discharged by the other fan through the fan-side communication port 75 through the communication port 76 . And the pipelines 72, 74 communicated with the room can be connected with the air supply port 24 and the internal air suction port 22 located on one side plate of the housing 11, and the pipelines 71, 73 communicated with the outdoor can be connected with the air inlet 22 located on another side plate of the housing 11. The exhaust port 23 on the side plate is connected with the external air suction port 21. Therefore, each of the pipes 71, 72, ... can be arranged in a straight line toward the indoor or outdoor, so that the piping 71, 72, ... can be easily arranged, and the installation space can be reduced.

The eleventh invention is that, in the ninth invention, the fan-side side plate 13 of the casing 11 is provided with an air supply port 24 communicating with the indoor and an exhaust port 23 communicating with the outdoor, facing the The side plate 12 of the fan-side side plate 13 is provided with an internal air suction port 22 and an external air suction port 21, and in the second space 18, they are arranged side by side along the length direction of the fan-side side plate 13 to form a storage space. The first heat exchange chamber 41 containing the first heat exchanger 61 and the second heat exchange chamber 42 containing the second heat exchanger 62 are provided, and the first inflow passage 43 and the second inflow passage 45 for air are provided. The first outflow channel 44 and the second outflow channel 46 of the air, the first inflow channel 43 and the second inflow channel 45 are on one side of the continuous side surfaces of the two heat exchange chambers 41, 42 and the side facing the fan side. The side plates 12 of the plate 13 extend along the side plates 12 and are overlapped in the thickness direction of the housing 11. The first outflow path 44 and the second outflow path 46 are continuous between the two heat exchange chambers 41 and 42. Between the other side of the side and the fan-side side plate 13 extends along the fan-side side plate 13 and is overlapped in the thickness direction of the housing 11, and the thickness direction of the housing 11 and the fan-side side plate 13 are parallel to the plate surfaces, and the outflow channels 44, 46 are communicated with the first space 17 through the fan-side communication ports 75, 76 provided on the partition plate 31, and the partition plate 31 is provided on the side of the casing 11. The inside of the casing 11 is divided into a first space 17 and a second space 18 . With the above structure, the air entering the housing 11 from the inside air inlet 22 and the outside air inlet 21 flows into the first or second inflow channels 44, 46, and is dehumidified after passing through the first or second heat exchangers 61, 62. or humidification, then, the air in the first outflow channel 44 is discharged by one side of the air supply fan 25 or the exhaust fan 26 after passing through the fan side communication port 76, and the air in the second outflow channel 46 is discharged by the other after passing through the fan side communication port 75. Exhaust from one side fan.

In this structure, since the first inflow channel 43 and the second inflow channel 45 are provided along one side of the continuous side surfaces of the first heat exchange chamber 41 and the second heat exchange chamber 42 arranged in the longitudinal direction of the fan side plate 13, The 144th and the second outflow channel 46 are arranged along the other side, so the humidity control device (housing 11) is longer in the direction perpendicular to the side plate 13 on the fan side. The direction perpendicular to the side plate 13) is configured with the pipes 71, 72..., which can reduce the installation space of the humidity control device in the length direction of the side plate 13 on the fan side.

According to the twelfth invention, in the tenth or eleventh invention, the fan suction port 27 on the side of the fan casing of the air supply fan 25 is arranged to face any one of the fan side communicating ports 75 and 76, The fan suction port 28 on the side of the fan case of the exhaust fan 26 is arranged to face the other of the fan side communicating ports 75 and 76 .

With the above structure, since the suction ports 27, 28 on the side of the fan casing face the fan side communication ports 75, 76, after being dehumidified or humidified by the heat exchangers 61, 62 in the first or second outflow channels 44, 46 The air is smoothly inhaled by each fan 25, 26 through each fan side communication port 75, 76. Therefore, since the resistance of air becomes small, the efficiency of a humidity control apparatus improves.

In the thirteenth invention, in the first invention, the expansion mechanism 65 of the refrigerant circuit 60 and the reversing mechanism 64 for reversing the refrigerant circulation direction are arranged in the first space 17 of the casing 11. .

With the above structure, in addition to the compressor 63, the expansion mechanism 65 of the refrigerant circuit 60 and the reversing mechanism 64 for reversing the refrigerant circulation direction are concentrated in the first space 17, and further space saving of the entire apparatus can be achieved. change.

In the fourteenth invention, in the above-mentioned thirteenth invention, the piping of the refrigerant circuit 60 connected to the first and second heat exchangers 61 and 62 is arranged along the top plate of the casing 11 .

With the above structure, since the piping of the refrigerant circuit 60 is provided along the top plate of the housing 11, the refrigerant circuit 60 can be arranged from above, and the refrigerant circuit 60 can be maintained from above.

In the fifteenth invention, in the first invention, the outdoor side filter 124 is arranged and formed along the inflow surface of the outdoor air in the first and second heat exchangers 61 and 62 .

In the fifteenth invention, the outdoor air OA that has passed through the outdoor side filter 124 flows through the circulation spaces of the heat exchangers 61 and 62 from the inflow surfaces of the heat exchangers 61 and 62 . At this time, dust in the outdoor air OA is captured by the outdoor side filter 124 . And, for example, the outdoor air OA is dehumidified by adsorbing moisture in the outdoor air OA by the heat exchangers 61 and 62 . In addition, the outdoor air OA is humidified, for example, by removing moisture adsorbed on the heat exchangers 61 and 62 and adding the outdoor air OA.

However, in general, in order to reduce the ventilation resistance of the treated air flowing through the heat exchangers 61, 62 and improve the contact efficiency between the treated air and the heat exchangers 61, 62, the inflow surfaces of the heat exchangers 61, 62 are designed into a larger area. In contrast, in the sixteenth invention, the outdoor filter 124 is arranged and formed along the inflow surfaces of the heat exchangers 61 and 62 . Therefore, the inflow area of the outdoor air OA in the outdoor filter 124 can be enlarged, and an increase in pressure loss due to the installation of the outdoor filter 124 can be suppressed. In addition, by enlarging the capture surface of the outdoor side filter 124 in this way, the dust in the outdoor air OA is easily scattered and captured by the outdoor side filter 124 . Therefore, it is possible to overcome the clogging of the outdoor side filter 124 and the increase of the ventilation pressure loss due to the concentration of dust on a part of the outdoor side filter 124 .

According to the sixteenth invention, in the fifteenth invention, the first heat exchange chamber 41 in which the first heat exchanger 61 is arranged and the second heat exchange chamber 41 in which the second heat exchanger 62 is arranged are formed in the casing 11 . chamber 42 , the outdoor side filter 124 has a first filter portion 124 a disposed in the first heat exchange chamber 41 and a second filter portion 124 b disposed in the second heat exchange chamber 42 .

In the sixteenth invention, the first filter portion 124 a is arranged along the inflow surface of the outdoor air OA in the first heat exchanger 61 . Therefore, an increase in ventilation pressure loss due to the provision of the first filter portion 124a can be suppressed. In this invention, the second filter part 124b is arranged and formed along the inflow surface of the outdoor air OA in the second heat exchanger 62 . Therefore, an increase in ventilation pressure loss due to the provision of the second filter unit 124b can be suppressed.

The seventeenth invention is that in the sixteenth invention, in the outdoor side filter 124, the first filter part 124a and the second filter part 124b are integrated, and the outdoor side filter 124 is arranged in a horizontal manner. across the outdoor air inflow surface in the first heat exchanger 61 and the outdoor air inflow surface in the second heat exchanger 62.

With the above configuration, the first filter part 124a and the second filter part 124b are integrally formed and arranged along both the inflow surface of the first heat exchanger 61 and the inflow surface of the second heat exchanger 62 .

In the eighteenth invention, in the seventeenth invention, the first heat exchanger 61 and the second heat exchanger 62 are arranged close to each other in the housing 11, and the inflow surface of the first heat exchanger 61 and the second heat exchanger The inflow surfaces of the heat exchanger 62 are substantially on the same plane.

In the eighteenth invention, the first filter part 124a and the second filter part 124b can be arranged close to each other, and can be arranged on the same plane along the inflow surfaces of the first and second heat exchangers 61 and 62 . Therefore, the outdoor side filter 124 can be compactly formed as a single flat or thin plate.

In the nineteenth invention, in the fifteenth invention, the case 11 is formed with a take-out port 161 from which the outdoor filter 124 can be taken out.

In the twentieth invention, the outdoor filter 124 can be taken out of the housing 11 through the removal port 161 of the housing 11 to perform maintenance on the outdoor filter 124 .

According to the 20th invention, in the above-mentioned 16th invention, the first operation and the second operation are switched, and the first operation is to make the outdoor air flow through the first filter part 124a, the first heat exchanger 61 sequentially, and the second operation. While supplying to the indoor space, the indoor air is sequentially flowed through the second heat exchanger 62 and the second filter part 124b and discharged to the outdoor space; While being supplied to the indoor space through the first heat exchanger 61 and the second heat exchanger 62, the indoor air is discharged to the outdoor space by passing through the first heat exchanger 61 and the first filter unit 124a in sequence.

In the twentieth invention, the outdoor air OA during the first operation flows sequentially to the first filter unit 124a and the first heat exchanger 61, so the dust in the outdoor air OA circulating during the first operation is absorbed by the first filter. Section 124a captures. On the other hand, the indoor air RA during the second operation flows in the opposite direction to the outdoor air OA during the first operation, that is, flows sequentially to the first heat exchanger 61 and the first filter unit 124a. Therefore, the dust captured by the first filter unit 124a can be blown off by the room air RA and discharged to the outdoor space, and the dust in the first filter unit 124a can be removed.

In the present invention, the outdoor air OA during the second operation flows sequentially to the second filter unit 124b and the second heat exchanger 62, so the dust in the outdoor air OA circulating during the second operation is captured by the second filter unit 124b. . On the other hand, the indoor air RA at the time of the first operation is reversed to the outdoor air OA at the time of the second operation, that is, flows in order to the second heat exchanger 62 and the second filter unit 124b. Therefore, the dust captured by the second filter unit 124b can be blown off by the room air RA and discharged to the outdoor space, and the dust in the second filter unit 124b can be removed.

In the 21st invention, in the above-mentioned 16th invention, there is an indoor side filter 123b arranged in the passage for allowing indoor air to flow into the first heat exchange chamber 41 or the second heat exchange chamber 42, and the first operation and the second heat exchange chamber 42 are provided with an indoor filter 123b. The first action is to make the outdoor air flow through the first filter part 124a and the first heat exchanger 61 in order to supply to the indoor space, and at the same time make the indoor air flow through the indoor side filter 123b and the second heat exchanger 61 sequentially. The heat exchanger 62, the second filter part 124b, and discharge to the outdoor space; the second action is to make the outdoor space flow through the second filter part 124b, the second heat exchanger 62 in order to supply to the indoor space, and make the The indoor air flows through the indoor filter 123b, the first heat exchanger 61, and the first filter unit 124a in this order, and is discharged to the outdoor space.

In the twenty-first invention, the indoor side filter 123b can suppress the dust in the room air RA from adhering to the first heat exchanger 61 and the second heat exchanger 62 . In addition, by repeating the first operation and the second operation, dust in the outdoor air OA adhering to the outdoor side filter 124 can be blown off and removed by the indoor air RA.

According to the 22nd invention, in the above-mentioned 1st or 15th invention, in the said casing 11, the 1st heat exchange chamber 41 in which the 1st heat exchanger 61 was arrange|positioned, and the 1st heat exchange chamber 41 in which the 2nd heat exchanger 62 was arrange|positioned were formed. 2. The heat exchange chamber 42, an indoor air supply passage for allowing indoor air to flow into the first heat exchange chamber 41 or the second heat exchange chamber 42, and has an indoor side filter 123b arranged in the indoor air supply passage.

In the 22nd invention, an indoor air supply passage for communicating the indoor space with the first and second heat exchange chambers 41 and 42 is formed in the casing 11, and the indoor side filter 123b is provided in the indoor air supply passage. . Therefore, it is possible to suppress the dust in the room air RA flowing into the second heat exchanger 62 from adhering to the second heat exchanger 62 during the first operation. Conversely, it is possible to suppress the dust in the room air RA flowing into the first heat exchanger 61 from adhering to the first heat exchanger 61 during the second operation.

In the 23rd invention, in the above-mentioned 1st or 15th invention, the first heat exchange chamber 41 in which the first heat exchanger 61 is arranged and the second heat exchange chamber 41 in which the second heat exchanger 62 is arranged are formed in the casing 11 . The heat exchange chamber 42 has a suction port 163 that is connected to the air passage on the indoor space side of the first heat exchange chamber 41 and the second heat exchange chamber 42 in the housing 11 and faces the indoor space, and is disposed on the Indoor filter 123b near the opening of suction 163.

In the above twenty-third invention, an indoor air supply passage for communicating the indoor space with the first and second heat exchange chambers 41 and 42 is formed in the casing 11, and the indoor side filter 123b is provided in the indoor air supply passage. . Therefore, it is possible to suppress the dust in the room air RA flowing into the second heat exchanger 62 from adhering to the second heat exchanger 62 during the first operation. Conversely, it is possible to suppress the dust in the room air OA flowing into the first heat exchanger 61 from adhering to the first heat exchanger 61 during the second operation.

In this invention, the indoor side filter 123b is disposed near the opening of the suction port 163 disposed facing the indoor space. Therefore, the indoor side filter 123b can be easily replaced and maintained from the indoor space.

Invention effect

As described above, according to the invention of the present application, the compressor 63 of the refrigerant circuit 60, the expansion mechanism 65, the reversing mechanism 64 for reversing the refrigerant cycle, and the heat exchangers 61 and 62 are arranged in the casing. within 11. Therefore, since it can be factory-installed with the refrigerant charged, the installation work is easy, the pressure loss can be reduced, and the condensation temperature and the efficiency of the humidity control device can be improved.

According to the sixth invention, since the air supply fan 25 and the exhaust fan 26 are arranged in the first space 17 along the fan-side side plate 13 in the housing 11, the first space 18 is arranged in the other second space 18. And the second heat exchangers 61, 62 and switching mechanism, so the overall device space can be saved, and the humidity control device can be easily installed in a small area such as the back of the ceiling.

According to the sixteenth invention, the outdoor side filter 124 is arranged and formed on the inflow surface of the outdoor air OA of the heat exchangers 61 and 62 . Therefore, the inflow area of the outdoor air OA in the outdoor filter 124 can be enlarged, and an increase in pressure loss due to the installation of the outdoor filter 124 can be suppressed. In addition, since the dust trapped in the outdoor air OA can be dispersed, an increase in pressure loss when the outdoor filter 124 is clogged can be suppressed. Therefore, it is possible to prevent dust from adhering to the heat exchangers 61 and 62 and to reduce ventilation pressure loss, for example, to reduce the power load of the suction fan.

In the 17th invention, both the first filter part 124a protecting the first heat exchanger 61 and the second filter part 124b protecting the second heat exchanger 62 are located along the outside of each heat exchanger 61, 62. The inflow surface arrangement of the air OA is formed. Therefore, it is possible to suppress an increase in pressure loss due to the provision of the filter units (124a, 124b).

According to the eighteenth invention, the first filter part 124a and the second filter part 124b are integrally formed. Therefore, the outdoor side filter 124 can be installed compactly. When it is removed for maintenance, it can be taken out only once, so its workability is improved.

According to the nineteenth invention, the first filter part 124a and the second filter part 124b can be arranged close to each other, and are formed in a single flat or thin plate shape. Therefore, the outdoor side filter 124 can be more compactly designed. In addition, the installability of the outdoor side filter 124 can be improved.

According to the above-mentioned twentieth invention, the outdoor side filter 124 can be easily taken out from the outside of the housing 11 through the taking-out opening 161 . Therefore, the maintainability of the outdoor filter 124 can be improved.

According to the twenty-first invention, during the first operation and the second operation, the dust captured by the outdoor filter 124 is blown away by the room air RA, and the dust is discharged to the outdoor space together with the room air RA. Therefore, by alternately switching and operating the first operation and the second operation, the dust adhering to the outdoor side filter 124 can be automatically removed, and dust clogging of the outdoor side filter 124 can be suppressed. Therefore, an increase in the pressure loss of the outdoor filter 124 can be suppressed. In addition, the frequency of replacement or maintenance of the outdoor side filter 124 can be reduced.

According to the twenty-second invention, by alternately switching between the first operation and the second operation, the dust adhering to the outdoor filter 124 can be removed using the room air RA, and dust clogging of the outdoor filter 124 can be suppressed. On the other hand, dust in the indoor air RA is captured by the indoor filter 123b. Therefore, it is possible to suppress the dust in the room air RA from adhering to the second heat exchangers 61 and 62 .

According to the twenty-third invention, by providing the indoor filter 123b in addition to the outdoor filter 124, it is possible to suppress the dust in the room air RA from adhering to the heat exchangers 61, 62.

According to the twenty-fourth invention, the indoor side filter 123b is disposed at the suction port 163 facing the indoor space. Therefore, the indoor filter 123b can be easily detached from the indoor space. Therefore, the workability of replacement and maintenance of the indoor filter 123b can be improved.

Description of drawings

Fig. 1 is a perspective view of a humidity control device according to Embodiment 1.

Fig. 2 is the general structural view of the humidity control device of embodiment 1, this figure (A) is the X-X direction view of figure (B), figure (B) is the top view of humidity control device, figure (C) is figure (B) Y-Y direction view.

Fig. 3 is a piping system diagram of the refrigerant circuit according to Embodiment 1, in which (A) shows the state in operation of the first refrigeration cycle, and (B) shows the state in operation of the second refrigeration cycle.

Fig. 4 is a schematic structural view of the humidity control device showing the air flow in the first action of the dehumidification operation, and Fig. (A) is a view taken along the line X-X of Fig. (B), Fig. ) is the Y-Y view of Figure (B).

Fig. 5 is a schematic structural view of the humidity control device showing the air flow in the second operation of the dehumidification operation, and Fig. (A) is a view taken along the direction X-X of Fig. (B), Fig. It is the Y-Y direction view of Figure (B).

Fig. 6 is a schematic structural view of the humidity control device showing the air flow in the first action of the humidification operation, and figure (A) is a view taken along the direction X-X of figure (B), and figure (B) is a top view of the humidity control device, and figure (C) It is the Y-Y direction view of Figure (B).

Fig. 7 is a schematic structural view of the humidity control device showing the air flow direction of the second action of the humidification operation, Figure (A) is a view from the X-X direction of Figure (B), Figure (B) is a top view of the humidity control device, and Figure (C) It is the Y-Y direction view of Figure (B).

Fig. 8 is a schematic structural view of the humidity control device of a modified example of Embodiment 1, Figure (A) is a view taken along the direction X-X of Figure (B), Figure (B) is a top view of the humidity control device, and Figure (C) is a view of Figure (B) ) in the Y-Y direction.

Fig. 9 is a general structure diagram of the humidity control device of Embodiment 2, figure (A) is a view taken along the X-X direction of figure (B), figure (B) is a top view of the humidity control device, and figure (C) is Y-Y of figure (B) to the view.

Figure 10 is a general structural view of the humidity control device of Embodiment 3, Figure (A) is a view taken along the X-X direction of Figure (B), Figure (B) is a top view of the humidity control device, and Figure (C) is a Y-Y line of Figure (B) to the view.

Figure 11 is a general structural view of the humidity control device of Embodiment 4, Figure (A) is a view taken along the X-X direction of Figure (B), Figure (B) is a top view of the humidity control device, and Figure (C) is a Y-Y line of Figure (B) to the view.

Fig. 12 is a general structural view of the humidity control device of Embodiment 5, Figure (A) is a view taken along the X-X direction of Figure (B), Figure (B) is a top view of the humidity control device, and Figure (C) is a Y-Y line of Figure (B) to the view.

Fig. 13 is a schematic structural view of the humidity control device according to Embodiment 6. Figure (A) is a top view of the humidity control device, figure (B) is a view of the interior of the humidity control device from the left side, and figure (C) is a view from the right See the view inside the humidity control device from the side, and Figure (D) is a D-D cross-sectional view of Figure (A).

Fig. 14 is a schematic structural view of the humidity control device showing the flow of air during the first operation. Figure (A) is a top view of the humidity control device, and figure (B) is a view of the interior of the humidity control device from the left side. Figure (C) ) is a view of the inside of the humidity control device from the right side.

Fig. 15 is a schematic structural view of the humidity control device showing the flow of air during the first operation, Figure (A) is a cross-sectional view of the humidity control device viewed from the left side, Figure (B) is a B-B cross-sectional view of Figure (A), and Figure (C) ) is a C-C sectional view of Figure (A).

Fig. 16 is a schematic structural view of the humidity control device showing the flow of air during the second operation. Figure (A) is a top view of the humidity control device, and figure (B) is a view of the inside of the humidity control device from the left side. Figure (C) ) is a view of the inside of the humidity control device from the right side.

Fig. 17 is a general structural diagram of the humidity control device showing the air flow direction during the second operation, and Fig. (A) is a view from the left side to see the inside of the humidity control device, and Fig. (B) is a cross-sectional view of Fig. (A) on B-B, Fig. (C) is a C-C sectional view of figure (A).

Fig. 18 is a schematic configuration diagram of a humidity control device according to Modification 1 of Embodiment 6. Fig. (A) is a plan view of the humidity control device, and Fig. (B) is a view of the inside of the humidity control device from the left side. Fig. (C) ) is a view of the inside of the humidity control device from the right side, and figure (D) is a cross-sectional view of D-D of figure (A).

Fig. 19 is a plan view of the humidity control device showing the operation of removing the filter from the humidity control device according to Modification 1 of the sixth embodiment.

Fig. 20 is a schematic configuration diagram of a humidity control device according to Modification 2 of the sixth embodiment.

Symbol Description

10 Humidity control device 11 Shell 12 The first side plate

13 2nd side panel (fan side panel) 17 1st space 18 2nd space

21 External air suction port 22 Internal air suction port 23 Exhaust outlet (exhaust port)

24 Air supply outlet (air supply port) 25 Air supply fan 26 Exhaust fan

27 Suction port 41 1st heat exchange chamber (1st channel)

42 2nd heat exchange chamber (2nd channel) 43 1st inflow channel

44 1st outflow path 45 2nd inflow path 46 2nd outflow path

60 Refrigerant circuit 61 1st heat exchanger 62 2nd heat exchanger

63 Compressor 64 Four-way switching valve (reverse mechanism) 65 Electric expansion valve (expansion mechanism)

123b No. 2 pre-filter (indoor filter) 124 Outdoor filter

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments are preferred illustrations in nature, and do not limit the scope of the present invention, its applications and uses.

Embodiment 1 of the invention

Embodiment 1 of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1 and FIG. 2, the humidity control device 10 of this embodiment is used for dehumidifying and humidifying indoor air, has a box-shaped casing 11, and is arranged horizontally on the back of a ceiling, for example. In FIG. 2 , figure (B) is a top view, figure (C) is a view from the Y direction, and figure (A) is a view from the X direction. "Right" and "left" described below all refer to directions in FIG. 2 . Fig. 1 is a perspective view of the humidity control device 10 of Fig. 2(B) viewed from the upper right.

The refrigerant circuit 60 and the like are housed in the casing 11 . The refrigerant circuit 60 is a closed circuit including a first heat exchanger 61, a second heat exchanger 62, a compressor 63, a four-way switching valve 64 as a reversing mechanism, and an electric expansion valve 65 as an expansion mechanism. filled with refrigerant. In the refrigerant circuit 60 , a vapor compression refrigeration cycle is performed by reversibly circulating the charged refrigerant. The detailed structure of the refrigerant circuit 60 will be described later.

As shown in FIG. 2 , the casing 11 is in the shape of a substantially square flat box when viewed from above. The side plate on the left side of the casing 11 is composed of the first side plate 12, the side plate on the right side is composed of the second side plate 13 as the fan side plate, the side plate on the front side is composed of the third side plate 14, and the back side plate is composed of the second side plate 13. The side plate is constituted by the fourth side plate 15 . In FIG. 1 , the second side plate 13 , the fourth side plate 15 , and the top plate are omitted.

On the first side plate 12 on the left side of the housing 11, an outside air suction port 21 is formed on the upper side near the fourth side plate 15 on the back side, and on the upper side near the third side plate 14 on the front side. An internal air suction port 22 is formed on the side. On the other hand, on the second side plate 13 on the right side of the casing 11 , an exhaust outlet 23 is formed near the fourth side plate 15 , and an air supply outlet 24 is formed near the third side plate 14 .

As shown by double-dashed lines in Figure 1, the outdoor air suction pipe 71 is connected to the outside air suction port 21 of the first side plate 12 of the housing 11, and the indoor air suction pipe 72 is connected to the indoor air suction port 22. . On the other hand, an exhaust blowing duct 73 is connected to the exhaust blowing port 23 of the second side plate 13 of the casing 11 , and a supply air blowing duct 74 is connected to the supply air blowing port 24 . In this way, the interior of the housing 11 communicates with the interior of the room and the exterior.

As shown in FIG. 2 , a first partition plate 31 that is closer to the second side plate 13 than the center portion in the left-right direction is vertically provided inside the housing 11 . The internal space 16 of the casing 11 is partitioned left and right by the first partition 31 . Further, the right side of the first partition 31 is the first space 17 , and the left side of the first partition 31 is the second space 18 .

Inside the first space 17 of the casing 11 , a seventh partition 37 is erected close to the third side plate 14 . The first space 17 is divided into two by the seventh partition 37 . In the divided first space 17 , the air supply fan 25 is accommodated on the third side plate 14 side, and the exhaust fan 26 is accommodated on the fourth side plate 15 side. The air supply fan 25 and the exhaust fan 26 are composed of multi-bladed fans that suck air from the side of the fan housing and blow it out forward.

On the fourth side plate 15 side of the first space 17 , the compressor 63 of the refrigerant circuit 60 is sandwiched between the air supply fan 25 and the exhaust fan 26 . In addition, as shown in FIG. 1 , the electric expansion valve 65 and the four-way switching valve 64 of the refrigerant circuit 60 are also arranged on the fourth side plate 15 side of the first space 17 . In addition, the exhaust fan 26 is connected to the exhaust outlet 23 . The air supply fan 25 is connected to the air supply outlet 24 .

A second partition 32 , a third partition 33 , and a sixth partition 36 are provided in the second space 18 of the casing 11 . The second partition plate 32 is erected near the third side plate 14 , and the third partition plate 33 is erected near the fourth side plate 15 . The second space 18 is partitioned into three spaces from the front side to the back side by the second partition plate 32 and the third partition plate 33 . The sixth partition 36 is provided in the space sandwiched by the second partition 32 and the third partition 33 , and the sixth partition 36 is erected at the center in the left-right width direction of the second space 18 .

The space sandwiched between the second partition 32 and the third partition 33 is divided into left and right by a sixth partition 36 . Among them, the space on the right side constitutes the first heat exchange chamber 41 , and the first heat exchanger 61 is disposed therein. On the other hand, the space on the left constitutes the second heat exchange chamber 42, and the second heat exchanger 62 is arranged inside it.

An opening 31 a for piping that communicates the first heat exchange chamber 41 and the first space 17 is provided on the upper side of the central portion in the longitudinal direction of the first partition plate 31 . Moreover, the opening 36a for piping is also provided in the upper side of the center part of the longitudinal direction of the 6th partition plate 36. As shown in FIG.

Each heat exchanger 61, 62 is formed in the shape of a thick flat plate as a whole. Furthermore, the first heat exchanger 61 traverses the first heat exchange chamber 41 in the horizontal direction. The second heat exchanger 62 traverses the second heat exchange chamber 42 in the horizontal direction. The detailed structures of the first and second heat exchangers 61 and 62 will be described later.

A fifth partition 35 is provided in a space sandwiched between the third partition 33 and the fourth side plate 15 of the case 11 in the second space 18 . The fifth partition plate 35 crosses the central portion in the height direction of the space, and partitions the space up and down (see FIG. 2(A) ). The upper side space of the fifth partition plate 35 forms the first inflow channel 43 , and the lower side space forms the first outflow channel 44 . Also, the first inflow path 43 communicates with the outside air inlet 21 , and the first outflow path 44 communicates with the exhaust outlet 23 through the second fan-side communication port 76 of the first partition 31 and the exhaust fan 26 .

On the other hand, a fourth partition 34 is provided in a space sandwiched between the second partition 32 and the third side plate 14 of the case 11 in the second space 18 . The fourth partition plate 34 crosses the central portion in the height direction of the space, and partitions the space up and down (see FIG. 2(C) ). Furthermore, the upper space of the fourth separator 34 constitutes the second inflow path 245 , and the lower space thereof constitutes the second outflow path 46 . Also, the second inflow path 45 communicates with the internal air inlet 22 , and the second outflow path 46 communicates with the air supply outlet 24 through the first fan-side communication port 75 of the first partition 31 and the air supply fan 25 .

Four openings 51 , 52 , 53 , and 54 are formed in the third separator 33 (see FIG. 2(A) ). The first opening 51 formed in the upper right portion of the third partition plate 33 communicates the upper side of the first heat exchanger 61 in the first heat exchange chamber 41 with the first inlet passage 43 . The second opening 52 formed in the upper left portion of the third partition plate 33 communicates the upper side of the second heat exchanger 62 in the second heat exchange chamber 42 with the first inlet passage 43 . The third opening 53 formed in the lower right portion of the third partition plate 33 communicates the lower side of the first heat exchanger 61 in the first heat exchange chamber 41 with the first outflow path 44 . The fourth opening 54 formed in the lower left portion of the third partition communicates the lower side of the second heat exchanger 62 in the second heat exchange chamber 42 with the first outflow path 44 .

Four openings 55 , 56 , 57 , and 58 are formed in the second separator 32 (see FIG. 2(C) ). The fifth opening 55 formed in the upper right portion of the second partition plate 32 communicates the upper side of the first heat exchanger 61 in the first heat exchange chamber 41 with the second inlet passage 45 . The sixth opening 56 formed in the upper left portion of the second partition plate 32 communicates the upper side of the second heat exchanger 62 in the second heat exchange chamber 42 with the second inlet passage 45 . The seventh opening 57 formed in the lower right portion of the second partition plate 32 communicates the lower side of the first heat exchanger 61 in the first heat exchange chamber 41 with the second outflow path 46 . The eighth opening 58 formed in the lower left portion of the second partition plate 32 communicates the lower side of the second heat exchanger 62 in the second heat exchange chamber 42 with the second outflow path 46 .

Each opening 51, 52, 53, 54 of the third partition 33 and each opening 55, 56, 57, 58 of the second partition 32 are respectively provided with a switching mechanism not shown in the figure, which can be freely opened and closed. damper. And these openings 51..., 55... are switched between an open state and a closed state by opening and closing a damper. Thereby, the circulation path of the air in the casing 11 can be switched according to the refrigerant circulation direction in the refrigerant circuit 60 .

The refrigerant circuit 60 will now be described with reference to FIGS. 1 and 3 .

The discharge side of the compressor 63 is connected to the first port of the four-way switching valve 64, and the suction side thereof is connected to the second port of the four-way switching valve 64 through the piping closed port 31a of the first partition plate 31. 1. One end of the heat exchanger 61 is connected to the third port of the four-way switching valve 64 through the piping opening 31a. The other end of the first heat exchanger 61 is connected to the electric expansion valve 65 through the piping opening 31a, and then through the piping opening 31a. The opening 31a is connected to one end of the second heat exchanger 62 through the piping opening 36a of the sixth partition plate 36. The other end of the second heat exchanger 62 is connected to the four-way switching valve 64 through the piping openings 31a and 36a. The 4th port connection.

The compressor 63 constitutes a so-called hermetic type. Electric power is supplied to a motor (not shown) of the compressor 63 through an inverter.

Both of the first and second heat exchangers 61 and 62 have heat transfer tubes and a plurality of fins, and are constituted by so-called cross-fin-type fin-and-tube heat exchangers. In addition, an adsorbent such as zeolite is placed on substantially the entire outer surfaces of the first and second heat exchangers 61 and 62 .

The four-way switching valve 64 can be freely switched to a first state (the state shown in FIG. The second state in which the four ports are connected and the second port and the third port are connected (the state shown in FIG. 3(B)). In addition, the refrigerant circuit 60 reverses the refrigerant circulation direction by switching the four-way switching valve 64, and can switch between the first refrigeration cycle operation and the second refrigeration cycle operation. The first heat exchanger 61 functions as a condenser and the second heat exchanger 62 functions as an evaporator. During the operation of the second refrigeration cycle, the first heat exchanger 61 functions as an evaporator and the second heat exchanger 62 functions as a condenser.

1 Humidity control action of humidity control device-

The humidity control operation of the humidity control device 10 will now be described. In this humidity control device 10, it is possible to switch between dehumidification operation and humidification operation. In addition, in the humidity control device 10, the first operation and the second operation are alternately repeated at short time intervals (for example, 3 minutes) during the dehumidification operation or the humidification operation.

(Dehumidification operation)

During the dehumidification operation, in the humidity control device 10, the air supply fan 25 and the exhaust fan 26 operate. The humidity control device 10 takes in outdoor air OA as first air and supplies it indoors, and takes in room air RA as second air and discharges it outdoors.

First, the first operation during the dehumidification operation will be described with reference to FIGS. 3 and 4 . In this first operation, regeneration of the adsorbent is performed in the first heat exchanger 61 , and dehumidification of the first air, that is, the outdoor air OA is performed in the second heat exchanger 62 .

In the first operation, in the refrigerant circuit 60 , the four-way switching valve 64 is switched to the first state shown in FIG. 3A . In this state, when the compressor 63 is operated, the refrigerant circulates in the refrigerant circuit 60 to perform a first refrigeration cycle operation in which the first heat exchanger 61 serves as a condenser and the second heat exchanger 62 serves as an evaporator.

Specifically, the refrigerant discharged from the compressor 63 dissipates heat in the first heat exchanger 61 , is condensed, and is then sent to the electric expansion valve 65 for decompression. The decompressed refrigerant evaporates after absorbing heat in the second heat exchanger 62 , and is sucked into the compressor 63 to be compressed. And, the compressed refrigerant is discharged from the compressor 63 again.

In addition, during the first operation, the second opening 52, the third opening 53, and the eighth opening 58 are in the open state, and the first opening 51, the fourth opening 54, the sixth opening 56, and the seventh opening 57 are in the closed state. And as shown in FIG. 4 , indoor air RA as the second air is supplied to the first heat exchanger 61 , and outdoor air OA as the first air is supplied to the second heat exchanger 62 .

Specifically, the second air flowing in from the air inlet 22 is sent into the first heat exchange chamber 41 from the second inflow channel 45 through the fifth opening 55. In the first heat exchange chamber 41, the second air flows from above Down through the first heat exchanger 61. On the first heat exchanger 61, the adsorbent supported on the outer surface is heated by the refrigerant, and the moisture is detached from the adsorbent. The moisture detached from the adsorbent is added to the In the second air of the heat exchanger 61, the second air added with moisture in the first heat exchanger 61 flows out from the first heat exchange chamber 41 through the third opening 53 to the first outflow channel 44. Then, the second The air is sucked into the exhaust fan 26, and is discharged to the outside from the exhaust outlet 23 as exhaust air EA.

On the other hand, the first air flowing in from the outside air inlet 21 is sent into the second heat exchange chamber 42 through the second opening 52 from the first inlet passage 43 . In the second heat exchange chamber 42 , the first air passes through the heat exchanger 62 from above to below. In the second heat exchanger 62, moisture in the first air is adsorbed by the adsorbent supported on the surface. The heat of adsorption generated at this time is absorbed by the refrigerant. The first air dehumidified in the second heat exchanger 62 flows out from the second heat exchange chamber 42 to the second outflow path 46 through the eighth opening 58 . Then, the first air is sucked into the air supply fan 25 and supplied into the room from the air supply outlet 24 as supply air (SA).

Next, the second operation during the dehumidification operation will be described with reference to FIGS. 3 and 5 . In this second operation, regeneration of the adsorbent is performed in the second heat exchanger 62 , and dehumidification of the outdoor air OA, which is the first air, is performed in the first heat exchanger 61 .

In the second operation, in the refrigerant circuit 60 , the four-way switching valve 64 is switched to the second state shown in FIG. 3(B) . In this state, when the compressor 63 is operated, the refrigerant circulates in the refrigerant circuit 60, and the second refrigeration cycle operation is performed in which the first heat exchanger 61 serves as an evaporator and the second heat exchanger 62 serves as a condenser.

Specifically, the refrigerant discharged from the compressor 63 dissipates heat in the second heat exchanger 62 and then condenses, then is sent to the electric expansion valve 65 for decompression, and the decompressed refrigerant absorbs heat in the first heat exchanger 61 After evaporation, it is then compressed by the suction compressor 63. The compressed refrigerant is then discharged from the compressor 63 .

During the second operation, the first opening 51, the fourth opening 54, the sixth opening 56, and the seventh opening 57 are opened, and the second opening 52, the third opening 53, the fifth opening 55, and the eighth opening 58 are closed. state. And as shown in FIG. 5 , outdoor air OA as the first air is supplied to the first heat exchanger 61 , and room air RA as the second air is supplied to the second heat exchanger 62 .

Specifically, the second air flowing in from the inside air inlet 22 is sent into the second heat exchange chamber 42 through the sixth opening 56 from the second inlet passage 45 . In the second heat exchange chamber 42, the second air passes through the second heat exchanger 62 from above to below. In the second heat exchanger 62, the adsorbent supported on the outer surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture detached from the adsorbent is added to the second air passing through the second heat exchanger 62 . The second air added with moisture in the second heat exchanger 62 flows out from the second heat exchange chamber 42 to the first outflow path 44 through the fourth opening 54 . Then, the second air is sucked into the exhaust fan 26 and discharged from the exhaust outlet 23 to the outside as exhaust air EA.

On the other hand, the first air that has flowed in from the outside air inlet 21 is sent into the first heat exchange chamber 41 through the first opening 51 through the first inflow path 43 . In the first heat exchange chamber 41 , the first air passes through the first heat exchanger 61 from top to bottom. In the first heat exchanger 61, the moisture in the first air is adsorbed by the adsorbent supported on the surface. The heat of adsorption generated at this time is absorbed by the refrigerant. The first air dehumidified in the first heat exchanger 61 is sucked into the air supply fan 25 from the first heat exchange chamber 41 and supplied as supply air (SA) into the room from the supply air outlet 24 .

(humidification operation)

During the humidification operation, in the humidity control device 10, the air supply fan 25 and the exhaust fan 26 operate. And the humidity control apparatus 10 takes in indoor air RA as 1st air, and discharges it outdoors, and takes in outdoor air OA as 2nd air, and supplies it indoors.

First, the first operation during the humidification operation will be described with reference to FIGS. 3 and 6 . In this first operation, the outdoor air OA that is the second air is humidified in the first heat exchanger 61 , and moisture is recovered from the room air RA that is the first air in the second heat exchanger 62 .

In the first operation, in the refrigerant circuit 60, the four-way switching valve 64 is switched to the first state shown in FIG. 3(A). In this state, if the compressor 63 operates, the refrigerant will Circulate in the circuit 60, and perform the first refrigeration cycle operation in which the first heat exchanger 61 becomes a condenser and the second heat exchanger 62 becomes an evaporator.

During the first operation, the first opening 51, the fourth opening 54, the sixth opening 56, and the seventh opening 57 are opened, and the second opening 52, the third opening 53, the fifth opening 55, and the eighth opening 58 are closed. state. As shown in FIG. 6 , outdoor air OA as the second air is supplied to the first heat exchanger 61 , and room air RA as the first air is supplied to the second heat exchanger 62 .

Specifically, the first air that has flowed in from the inside air inlet 22 is sent into the second heat exchange chamber 42 from the second inflow path 45 through the sixth opening 56 . In the second heat exchange chamber 42 , the first air passes through the second heat exchanger 62 from top to bottom. In the second heat exchanger 62, the adsorbent supported on the surface adsorbs moisture in the first air. The heat of adsorption generated at this time is absorbed by the refrigerant. Then, the first air absorbed with moisture passes through the fourth opening 54 , the first outflow path 44 , and the exhaust fan 26 sequentially, and is discharged from the exhaust outlet 23 to the outside as exhaust air EA.

On the other hand, the second air flowing in from the outside air inlet 21 is sent into the first heat exchange chamber 41 after passing through the first opening 51 through the first inlet passage 43 . In the first heat exchange chamber 41 , the second air passes through the first heat exchanger 61 from top to bottom. In the first heat exchanger 61, the adsorbent supported on the outer surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture detached from the adsorbent is added to the second air passing through the first heat exchanger 61 . Then, the humidified second air passes through the seventh opening 57 , the second outflow path 46 , and the air supply fan 25 sequentially, and is supplied as supply air (SA) from the supply air outlet 24 into the room.

Next, the second operation during the humidification operation will be described with reference to FIGS. 3 and 7 . In this second operation, the second air outdoor unit air OA is humidified in the second heat exchanger 62 , and moisture is recovered from the room air RA that is the first air in the first heat exchanger 61 .

In the second operation, in the refrigerant circuit 60 , the four-way switching valve 64 is switched to the second state shown in FIG. 3(B) . In this state, when the compressor 63 is operated, the refrigerant circulates in the refrigerant circuit 60, and the second refrigeration cycle operation is performed in which the first heat exchanger 61 serves as an evaporator and the second heat exchanger 62 serves as a condenser.

During the second operation, the second opening 52, the third opening 53, the fifth opening 55, and the eighth opening 58 are opened, and the first opening 51, the fourth opening 54, the sixth opening 56, and the seventh opening 57 are closed. state. As shown in FIG. 7 , indoor air RA as the first air is supplied to the first heat exchanger 61 , and outdoor air OA as the second air is supplied to the second heat exchanger 62 .

Specifically, the first air that has flowed in from the inside air inlet 22 is sent into the first heat exchange chamber 41 through the fifth opening 55 through the second inflow path 45 . In the first heat exchange chamber 41 , the first air passes through the first heat exchanger 61 from top to bottom. In the first heat exchanger 61, the adsorbent supported on the surface adsorbs moisture in the first air. The heat of adsorption generated at this time is absorbed by the refrigerant. Then, the first air that has absorbed moisture passes through the third opening 53 , the first outflow path 44 , and the exhaust fan 26 sequentially, and is discharged from the exhaust outlet 23 to the outside as exhaust air EA.

On the other hand, the second air flowing in from the outside air inlet 21 is sent into the second heat exchange chamber 42 through the second opening 52 from the first inlet passage 43 . In the second heat exchange chamber 42 , the second air passes through the second heat exchanger 62 from top to bottom. In the second heat exchanger 62, the adsorbent supported on the outer surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture detached from the adsorbent is added to the second air passing through the second heat exchanger 62 . Then, the humidified second air passes through the eighth opening 58 , the second outflow path 46 , and the air supply fan 25 sequentially, and is supplied as supply air (SA) from the supply air outlet 24 into the room.

-Effect of Embodiment 1-

In this embodiment, the compressor 63 of the refrigerant circuit 60, the electric expansion valve 65, the four-way switching valve 64 for reversing the refrigerant circulation direction, and the heat exchangers 61 and 62 are installed in the casing 11. Therefore, it can be installed after leaving the factory in the state filled with refrigerant, so the installation work is easy, and the pressure loss can be reduced, the condensation temperature can be increased, and the efficiency of the humidity control device can be improved.

In the present embodiment, a first space 17 and a second space 18 are formed in the casing 11, and an air supply fan 25 and an exhaust fan 26 are arranged in the second space 18 along the second side plate 13, which is the side plate on the fan side. , and the first and second heat exchangers 61 and 62 and the switching mechanism are arranged in the first space 17 . Therefore, the arrangement of the devices in the housing 11 can be optimized, the housing 11 can be downsized, and the humidity control device 10 can be easily installed in a small area such as the back of the ceiling.

In this embodiment, the compressor 63 of the refrigerant circuit 60 is arranged between the air supply fan 25 and the exhaust fan 26 in the first space 17 of the casing 11 . Therefore, the empty space between the air supply fan 25 and the exhaust fan 26 can be effectively used, and the humidity control device can be further compacted.

In this embodiment, since the two heat exchangers 61 and 62 are arranged substantially horizontally, a humidity control device having a small thickness can be obtained.

In this embodiment, in addition to the compressor 63, the electric expansion valve 65 and the four-way switching valve 64 of the refrigerant circuit 60 are collectively arranged in the first space 17, so that the overall apparatus can be further reduced in space.

In this embodiment, the piping of the refrigerant circuit 60 connected to the first and second heat exchangers 61 and 62 is arranged along the top plate of the casing 11 . Therefore, when the humidity control device 10 is assembled, the refrigerant circuit 60 can be installed from the upper side of the casing 11 , and the maintenance work of the refrigerant circuit 60 can be easily performed from the upper side of the casing 11 .

-Modification of Embodiment 1-

In the humidity control device 10 of the above embodiment, the inside of the first space 17 of the housing 11 is divided into two by the seventh partition 37, but as shown in FIG. The body 11 is isolated from the air passage. In this case, the compressor 63 is isolated from the air passage, and the air supplied to the room is not adversely affected by the heat radiated from the compressor 63 itself. In addition, a differential pressure hardly occurs between the first heat exchange chamber 41 and the first space 17, and air does not flow from the first heat exchange chamber 41 to the first space 17 side through the piping opening 31a.

In addition, although not shown, the seventh partition 37 may not be provided, and the inside of the first space 17 of the casing 11 may be partitioned only by the eighth partition. In this case, since the indoor air absorbs the radiated heat of the compressor 63 itself, it is an advantageous configuration when heating is important.

Embodiment 2 of the invention

Fig. 9 shows Embodiment 2 of the present invention, in which the arrangement positions of the outside air inlet 21, the inside air inlet 22, the exhaust outlet 23, and the supply air outlet 24 are different from those of Embodiment 1 above. In each of the following embodiments, the same symbols are assigned to the same parts as those in FIGS. Therefore omitted.

Specifically, on the fourth side plate 15 on the back side of the housing 11, an external air heat transfer port 21 is formed on the upper side close to the first side plate 12, and an exhaust blower is formed close to the second side plate 13. Exit 23. On the other hand, on the third side plate 14 on the front side of the housing 11 , an air supply outlet 24 is formed close to the second side plate 13 , and an inside air suction port 22 is formed on the upper side close to the first side plate 12 .

As shown in Fig. 9 two-dot dash line, the outdoor air suction duct 71 is connected with the outside air suction port 21 of the 4th side plate 15 in the said housing 11, and the exhaust blowing duct 73 is connected with the exhaust blowing port 23, and On the one hand, the indoor air intake duct 72 is connected to the internal air intake port 22 of the third side plate 14 in the casing 11 , and the supply air blowout duct 74 is connected to the supply air blowout port 24 .

Thus, the pipelines 71, 73 on the outdoor side are arranged side by side on the fourth side plate 15 of the housing 11, and the pipelines 72, 73 on the indoor side are arranged side by side on the third side plate 14 of the housing 11, so each pipeline can be arranged side by side. 71, 72... are arranged in a straight line facing indoors or outdoors.

Embodiment 3 of the invention

Fig. 10 shows a third embodiment of the present invention, which is different from the above-mentioned first embodiment in terms of the installation method of the air supply fan 25 and the exhaust fan 26 and the like.

The impeller axes of the air supply fan 25 and the exhaust fan 26 face the thickness direction of the housing 11 (upper side in FIG. 10 ).

In addition, the positional relationship between the first inflow path 43 and the first outflow path 44 of the casing 11 is upside down, and the positional relationship between the second inflow path 45 and the second outflow path 46 is upside down. Subsequently, the four openings 51 , 52 , 53 , 54 of the third partition 33 and the four openings 55 , 56 , 57 , 58 of the second partition 32 are also upside down.

By disposing in this way, the thickness of the casing 11 can be suppressed, and the entire humidity control device 10 can be downsized.

In addition, the suction port 28 of the exhaust fan 26 is arranged to face the second fan-side communication port 76 side of the first partition plate 31 communicating with the first outflow path 44, and the suction port 27 of the air supply fan 25 is arranged to face The first fan-side communication port 75 side of the first partition plate 31 communicating with the second outflow path 46 . Accordingly, the air in the first outflow path 44 can be smoothly sucked in from the suction port 28 of the exhaust fan 26 , and the air in the second outflow path 46 can be smoothly sucked in from the suction port 27 of the air supply fan 25 .

Embodiment 4 of the invention

FIG. 11 shows Embodiment 4 of the present invention, and the arrangement of equipment on the side of the second space 18 is different from Embodiment 3 described above.

Specifically, in the second space 18, the first heat exchange chamber 41 for accommodating the first heat exchanger 61 and the second heat exchange chamber 42 for accommodating the second heat exchanger 62 are arranged along the fan-side side plate. 13 are adjacently formed side by side in the length direction. That is, the first heat exchange chamber 41 is arranged on the left side of the second space 18, and the second heat exchange chamber 42 is arranged on the right side.

In addition, in the second space 18, between one of the continuous side surfaces of the two heat exchange chambers 41, 42 and the first side plate 12, there is a The first inflow path 43 and the second inflow path 45 of air are arranged overlapping in the thickness direction of the casing 11 . At the same time, four openings 51 , 52 , 55 , and 56 are formed in the second separator 32 .

In the second space 18 , between the other side of the two heat exchange chambers 41 and 42 and the fan side side plate 13 , there is a casing extending along the fan side side plate 13 . The first outflow channel 44 and the second outflow channel 46 for air are arranged overlapping in the thickness direction of the body 11 , and four openings 53 , 54 , 57 , and 58 are formed in the third partition plate 33 .

The first outflow channel 44 communicates with the first space 17 through the second fan-side communication port 76 , and the second outflow channel 46 communicates with the first space 17 through the first fan-side communication port 75 .

-Humidity control operation of the humidity control device-

Only the first operation of the dehumidification operation will be described for the humidity control operation of this embodiment. As for other operations, it is only necessary to switch the four-way switching valve 64 and the damper in the same manner as in the first embodiment described above, so description thereof will be omitted.

In the first operation, in the refrigerant circuit 60, the four-way switching valve 64 is switched to the state shown in FIG. 3(A). In this state, when the compressor 63 is operated, the refrigerant circulates in the refrigerant circuit 60, and the first refrigeration cycle operation is performed in which the first heat exchanger 61 serves as a condenser and the second heat exchanger 62 serves as an evaporator.

Specifically, the refrigerant discharged from the compressor 63 dissipates heat in the first heat exchanger 61 to be condensed, and then is sent to the electric expansion valve 65 to be depressurized. The decompressed refrigerant absorbs heat and evaporates in the second heat exchanger 62 , and is sucked into the compressor 63 to be compressed. The compressed refrigerant is discharged from the compressor 63 again.

In addition, as shown in FIG. 11, during the first movement, the first opening 52, the third opening 53, the fifth opening 55, and the eighth opening 58 are opened, and the first opening 51, the fourth opening 54, and the sixth opening 56 are opened. And the seventh opening 57 is in a closed state. Furthermore, indoor air RA as the second air is supplied to the first heat exchanger 61 , and outdoor air OA as the first air is supplied to the second heat exchanger 62 .

Specifically, the second air that has flowed in from the inside air inlet 22 is sent into the first heat exchange chamber 41 through the second inflow path 45 through the fifth opening 55 . In the first heat exchange chamber 41, the adsorbent supported on the outer surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture detached from the adsorbent is added to the second air passing through the first heat exchanger 61 . The second air added with moisture in the first heat exchanger 61 flows out from the first heat exchange chamber 41 to the first outflow path 44 through the third opening 53 . Then, the second air is sucked into the exhaust fan 26 through the second fan-side communicating port 76 and is discharged to the outside as exhaust air EA from the exhaust outlet 23 .

On the other hand, the first air flowing in from the outside air inlet 21 is sent into the second heat exchange chamber 42 through the second opening 52 from the first inlet passage 43 . In the second heat exchange chamber 42 , the first air passes through the second heat exchanger 62 from top to bottom. In the second heat exchanger 62, the adsorbent supported on the surface adsorbs the first air

In addition, in the second space 18, between one of the continuous side surfaces of the two heat exchange chambers 41, 42 and the first side plate 12, there is a The first inflow path 43 and the second inflow path 45 of air are arranged overlapping in the thickness direction of the casing 11 . At the same time, four openings 51 , 52 , 55 , and 56 are formed in the second separator 32 .

In the second space 18 , between the other side of the two heat exchange chambers 41 and 42 and the fan side side plate 13 , there is a casing extending along the fan side side plate 13 . The first outflow channel 44 and the second outflow channel 46 for air are arranged overlapping in the thickness direction of the body 11 , and four openings 53 , 54 , 57 , and 58 are formed in the third partition plate 33 .

The first outflow channel 44 communicates with the first space 17 through the second fan-side communication port 76 , and the second outflow channel 46 communicates with the first space 17 through the first fan-side communication port 75 .

-Humidity control operation of the humidity control device-

Only the first operation of the dehumidification operation will be described for the humidity control operation of this embodiment. As for other operations, it is only necessary to switch the four-way switching valve 64 and the damper in the same manner as in the first embodiment described above, so description thereof will be omitted.

In the first operation, in the refrigerant circuit 60, the four-way switching valve 64 is switched to the state shown in FIG. 3(A). In this state, when the compressor 63 is operated, the refrigerant circulates in the refrigerant circuit 60, and the first refrigeration cycle operation is performed in which the first heat exchanger 61 serves as a condenser and the second heat exchanger 62 serves as an evaporator.

Specifically, the refrigerant discharged from the compressor 63 dissipates heat in the first heat exchanger 61 to be condensed, and then is sent to the electric expansion valve 65 to be depressurized. The decompressed refrigerant absorbs heat and evaporates in the second heat exchanger 62 , and is sucked into the compressor 63 to be compressed. The compressed refrigerant is discharged from the compressor 63 again.

In addition, as shown in FIG. 11, during the first movement, the first opening 52, the third opening 53, the fifth opening 55, and the eighth opening 58 are opened, and the first opening 51, the fourth opening 54, and the sixth opening 56 are opened. And the seventh opening 57 is in a closed state. Furthermore, indoor air RA as the second air is supplied to the first heat exchanger 61 , and outdoor air OA as the first air is supplied to the second heat exchanger 62 .

Specifically, the second air flowing in from the inner air inlet 22 is sent into the first heat exchange chamber 41 from the second inflow channel 45 through the fifth opening 55. In the first heat exchange chamber 41, the adsorption on the outer surface The refrigerant is heated by the refrigerant, and the moisture is detached from the adsorbent. The moisture detached from the adsorbent is added to the second air passing through the first heat exchanger 61. The second air after adding moisture in the first heat exchanger 61 is transferred from the first The heat exchange chamber 41 flows out to the first outflow channel 44 through the third opening 53. Then, the second air is sucked into the exhaust fan 26 through the second fan side communication port 76, and is discharged to the outside from the exhaust outlet 23 as exhaust air EA. .

On the other hand, the first air flowing in from the outside air inlet 21 is sent into the second heat exchange chamber 42 through the second opening 52 from the first inlet passage 43 . In the second heat exchange chamber 42 , the first air passes through the second heat exchanger 62 from top to bottom. In the second heat exchanger 62, the adsorbent supported on the surface adsorbs the first air

In the first operation, in the refrigerant circuit 60, the four-way switching valve 64 is switched to the state shown in FIG. 3(A). In this case, when the compressor 63 is operated, the refrigerant circulates in the refrigerant circuit 60, and the first refrigeration cycle operation is performed in which the first heat exchanger 61 serves as a condenser and the second heat exchanger 62 serves as an evaporator.

Specifically, the refrigerant discharged from the compressor 63 dissipates heat in the first heat exchanger 61 to be condensed, and then is sent to the electric expansion valve 65 to be decompressed. The decompressed refrigerant evaporates after absorbing heat in the second heat exchanger 62, and then is sent to the compressor 63 for compression. The compressed refrigerant is then discharged from the compressor 63 .

During the first operation, the second opening 52, the third opening 53, the fifth opening 55, and the eighth opening 58 are opened, and the first opening 51, the fourth opening 54, the sixth opening 56, and the seventh opening 57 are closed. state. And as shown in FIG. 12 , indoor air RA as the second air is supplied to the first heat exchanger 61 , and outdoor air OA as the first air is supplied to the second heat exchanger 62 .

Specifically, the second air that has flowed in from the inside air inlet 22 is sent into the first heat exchange chamber 41 through the second inflow path 45 through the fifth opening 55 . In the first heat exchange chamber 41 , the second air passes through the first heat exchanger 61 from the second partition plate 32 side to the third partition plate 33 side. In the first heat exchanger 61, the adsorbent supported on the outer surface is heated by the refrigerant, and moisture is detached from the adsorbent. The moisture desorbed from the adsorbent is added to the second air passing through the first heat exchanger 61 . The second air to which moisture has been added in the first heat exchanger 61 flows out from the second heat exchange chamber 41 to the first outflow path 44 through the third opening 53 . Then, the second air is sucked into the exhaust fan 26 through the second fan-side communicating port 76 and is discharged to the outside as exhaust air EA from the exhaust outlet 23 .

On the other hand, the first air flowing in from the outside air inlet 21 is sent into the second heat exchange chamber 42 through the second opening 52 from the first inlet passage 43 . In the second heat exchange chamber 42 , the first air passes through the second heat exchanger 62 from the second partition plate 32 side to the third partition plate 33 side. In the second heat exchanger 62, the adsorbent supported on the surface adsorbs moisture in the first air. The heat of adsorption generated at this time is absorbed by the refrigerant. The first air dehumidified in the second heat exchanger 62 flows out from the second heat exchange chamber 42 to the second outflow path 46 through the eighth opening 58 . Then, the first air is sucked into the air supply fan 25 through the first fan-side communication port 75 and supplied from the air supply outlet 24 into the room as supply air SA.

According to the humidity control device 10 of this embodiment, the width in the depth direction shown in FIG. 12 can be reduced.

Embodiment 6 of the invention

Referring now to Fig. 13, Embodiment 6 of the present invention will be described. In this embodiment, "upper", "lower", "left", "right", "front", "rear", "front", and "inside", unless otherwise specified, refer to Look at the humidity control device 10 from the side. The front of the humidity control device 10 is the lower side in FIG. 13(A).

The humidity control device 10 of the present embodiment has a slightly flat rectangular box-shaped casing 11 . An air passage for communicating indoor air with an outdoor space is formed inside the housing 11 .

In addition, a refrigerant circuit 60 is housed inside the casing 11 . The refrigerant circuit 60 is connected to the first heat exchanger 61 and the second heat exchanger 62, and has the same structure as that of the above-mentioned first embodiment. The configurations of the first heat exchanger 61 and the second heat exchanger 62 are also the same as those of the first embodiment described above. Here, descriptions of the configurations of the refrigerant circuit 60 , the first heat exchanger 61 , and the second heat exchanger 62 are omitted.

A rear panel 110a is formed on the innermost side of the casing 11, and a front panel 110b is formed on the most front side. A first side panel 111 is formed on the left side of the casing 11, and a second side panel 112 is formed on the right side. A top plate 110c is formed on the upper side of the housing 11, and a bottom plate 110d is formed on the lower side.

Near the left side of the rear panel 110, a first suction port 115 for taking in outdoor air OA from the outdoor space is formed, and a second inlet 115 for taking in room air RA from the indoor space is formed near the right side of the rear panel 110a. Suction port 116. On the other hand, near the left side of the front panel 110b, an air supply port 117 for supplying the humidity-adjusted air SA to the indoor space is formed, and an exhaust port for discharging exhaust air OA to the outdoor space is formed near the right side of the front panel 110b. 118.

The inside of the casing 11 is roughly divided into three spaces in the front-rear direction. Among these three spaces, the space formed near the front panel 110b of the casing 11 is divided into two spaces on the left and right. And, among these two spaces, the space on the left side constitutes the air supply side passage 131 , and the space on the right side constitutes the exhaust side passage 132 .

The air supply side channel 131 communicates with the indoor space through the air supply port 117 . An air supply fan 25 is disposed on the air supply side channel 131 . On the other hand, the exhaust side channel 132 communicates with the outdoor space through the exhaust port 118 . An exhaust fan 26 is disposed on the exhaust side channel 132 . The above-mentioned compressor 63 is disposed near the left side of the exhaust-side passage 132 .

A space formed near the rear panel 110 a of the casing 11 is partitioned into two spaces on the left and right by the suction side partition 119 . Of these two spaces, the space on the left side constitutes the first suction path 133 , and the space on the right side constitutes the second suction path 134 as a room air supply path. Moreover, the first suction passage 133 communicates with the outdoor space through the first suction port 115 , and the second suction passage 134 communicates with the indoor space through the second suction port 116 .

A suction side filter 123 penetrating through the suction side partition 119 and straddling the first suction passage 133 and the second suction passage 134 is arranged in a space formed near the rear panel 110 of the casing 11 . The suction-side filter 123 integrally includes a first pre-filter 123 a located in the first suction passage 133 and a second pre-filter 123 b located in the second suction passage 134 . Furthermore, the first pre-filter 123a captures dust in the outdoor air OA sucked in from the first suction port 115, and the second pre-filter 123b captures dust in the room air RA sucked in from the second suction port 116. . The second pre-filter 123b constitutes an indoor filter.

The space formed in the center in the front-rear direction of the casing 1 is partitioned into three left and right spaces by a first partition 113 located near the left side and a second partition 114 located near the right side. Furthermore, the space between the first partition plate 113 and the second partition plate 114 is partitioned by the central partition plate 120 into the first heat exchange chamber 41 serving as the first passage and the second heat exchange chamber 42 serving as the second passage.

The first heat exchange chamber 41 is formed on the rear side of the center partition 120, and the first heat exchanger 61 is arranged therein. The 1st heat exchanger 61 is arrange|positioned in the center part of the up-down direction of the 1st heat exchange chamber 41, as shown in FIG.13(D). And the first heat exchange chamber 41 is partitioned into an upper space and a lower space. The first heat exchanger 61 is formed in a flat rectangular box shape, and the areas of the upper surface and the lower surface of the first heat exchange chamber 41 are larger than the areas of the other surfaces. In addition, a circulation space is formed in the first heat exchanger 61, and the humidity of the air to be processed is adjusted by the vertical flow of the air to be processed. An inflow surface into which outdoor air OA flows is formed on the upper surface of the first heat exchanger 61 .

On the upper surface of the first heat exchanger 61, a first filter 124a is arranged and formed along the inflow surface of the outdoor air OA. The first filter 124a constitutes a first filter unit and covers the entire upper surface of the first heat exchanger 61 . Furthermore, the first filter 124a captures dust in the outdoor air OA flowing into the first heat exchanger 61 .

The second heat exchange chamber 42 is formed on the front side of the central partition 120, and the second heat exchanger 62 is arranged. The second heat exchanger 62 is the same as the first heat exchanger 61, and is arranged in the second heat exchange chamber 42. The central part in the up and down direction. And, the second heat exchange chamber 42 is divided into an upper space and a lower space. The second heat exchanger 62 is the same as the first heat exchanger 61, forming a circulation space, and using the air to be treated up and down The humidity of the air to be treated is adjusted by circulating in the opposite direction. On the upper surface of the second heat exchanger 62, an inflow surface for circulating the outdoor air OA is formed.

On the upper surface of the second heat exchanger 62, a second filter 124b is arranged and formed along the inflow surface of the outdoor air OA. The second filter 124b covers the entire upper surface of the second heat exchanger 62 and constitutes a second filter unit. In addition, the second filter 124b captures dust in the outdoor air flowing into the second heat exchanger 62 .

The space between the first side plate 111 and the first partition plate 113 is divided up and down. And the upper space of this space constitutes the left upper passage 143 , and the lower space constitutes the left lower passage 144 . The left upper passage 143 communicates with the first suction passage 133 and is separated from the air supply side passage 131 . The left lower passage 144 communicates with the air supply side passage 131 and is separated from the first suction passage 133 .

The space between the second side plate 112 and the second partition plate 114 is divided up and down. And the space on the upper side of this space constitutes the right upper passage 145 , and the space on the lower side constitutes the right lower passage 146 . The right upper passage 145 communicates with the exhaust side passage 132 and is separated from the second suction passage 134 . The right lower passage 146 communicates with the second suction passage 134 and is separated from the discharge side passage 132 .

In addition, a first upper left opening 151 , a second upper left opening 152 , a first lower left opening 153 , and a second lower left opening 154 are formed in the first partition plate 113 . The lower side of the first upper left opening 151 is formed on the upper portion of the rear side of the first partition 113 , and the lower side of the second upper left opening 152 is formed on the upper portion of the first partition 113 on the front side. The lower side of the first lower left opening 153 is formed at the lower portion of the rear side of the first partition 113 , and the lower side of the second lower left opening 154 is formed at the lower portion of the front side of the first partition 113 .

Opening and closing dampers are respectively provided at the first to fourth openings 151, 152, . . . The opening and closing dampers of the openings 151, 152, ... can be independently switched between an open state and a closed state. Furthermore, when the first left upper opening 151 is in an open state, the left upper passage 143 communicates with the upper space of the first heat exchange chamber 41 . In addition, when the second upper left opening 152 is opened, the left upper passage 143 communicates with the upper space of the second heat exchange chamber 42 . In addition, when the first left lower opening 153 is in an open state, the left lower passage 144 communicates with the lower space of the first heat exchange chamber 41 . And if the second lower left opening 154 is in an open state, the left lower passage 144 communicates with the lower space of the second heat exchange chamber 42 .

On the other hand, a first upper right opening 155 , a second upper right opening 156 , a first lower right opening 157 , and a second lower right opening 158 are formed in the second partition plate 114 . The lower side of the first upper right opening 155 is formed in the upper portion of the rear side of the second partition plate 114 , and the lower side of the second upper right opening 156 is formed in the upper portion of the second partition plate 114 on the front side. The lower side of the first lower right opening 157 is formed in the lower portion of the second partition plate 114 on the back side, and the lower side of the second lower right opening 158 is formed in the lower portion of the second partition plate 114 on the front side.

Opening and closing dampers are respectively provided at the fifth to eighth openings 155 , 156 . . . The opening and closing dampers of the openings 155, 156, ... can be independently switched between an open state and a closed state. Moreover, when the first upper right opening 155 is in an open state, the right upper passage 145 communicates with the upper space of the first heat exchange chamber 41 . And if the second upper right opening 156 is in an open state, the right upper passage 145 communicates with the upper space of the second heat exchange chamber 42 . In addition, when the first lower right opening 157 is in an open state, the right lower passage 146 communicates with the lower space of the first heat exchange chamber 41 . When the second lower right opening 158 is in an open state, the right lower passage 146 communicates with the lower space of the second heat exchange chamber 42 .

The humidity control device 10 having the above-mentioned configuration switches the opening and closing states of the opening and closing dampers from the first to eighth openings 151, 152, ... while switching the refrigerant circulation direction in the refrigerant circuit 60 described above. , and alternately perform the first action and the second action.

Specifically, the humidity control device 10 can switch between the first operation and the second operation. The first operation is to make the outdoor air OA flow through the second filter 124a and the first heat exchanger 61 in order to supply to the indoor space, At the same time, the indoor space RA is made to flow through the second heat exchanger 62 and the second filter 124b in order to be discharged to the outdoor space; It is supplied to the indoor space, and at the same time, the indoor space RA is sequentially passed through the first heat exchanger 61 and the first filter 124a to be discharged to the outdoor space.

-Operation action-

Now, the operation of the above-mentioned humidity control device 10 will be described. The humidity control device 10 continues to perform the dehumidification operation or the humidification operation while alternately switching the first operation and the second operation by switching the refrigerant circulation direction in the refrigerant circuit 60 .

Dehumidification operation

In the first operation during the dehumidification operation, the four-way switching valve 64 is set to the second state (state shown in FIG. 3(B) ). In the refrigerant circuit 60, the first heat exchanger 61 functions as an evaporator, and the second heat exchanger 62 functions as a condenser. On the other hand, in the second operation, the four-way switching valve 64 is set to the first state (state shown in FIG. 3(A) ). In the refrigerant circuit 60, the first heat exchanger 61 functions as a condenser, and the second heat exchanger 62 functions as an evaporator.

As shown in FIG. 14, once the air supply fan 25 and the exhaust fan 26 are activated, the outdoor air OA is taken into the casing 11 from the first suction port 115 and flows into the first suction passage 133, while the indoor air RA is drawn from the first suction port 115. 2. The suction port 116 is taken into the casing 11 and flows into the second suction passage 134.

The outdoor air OA flowing into the first suction duct 133 passes through the first pre-filter 123a. Here, larger dust in the outdoor air OA is captured. Then, the outdoor air OA flows into the left upper passage 143 . On the other hand, room air RA flowing into the second suction duct 134 passes through the second pre-filter 123b. Here, dust in the indoor air RA is captured. Then, the room air RA flows into the right lower passage 146 .

Next, the first operation during the dehumidification operation will be described with reference to FIGS. 14 and 15 . Fig. 15(A) is a cross-sectional view of the inside of the first and second heat exchange chambers 41 and 42 viewed from the left side, Fig. 15(B) is a B-B cross-sectional view of Fig. 15(A), and Fig. 15(C) is a cross-sectional view of Fig. 15(A) ) C-C section view.

In the first action of the dehumidification operation, the opening and closing dampers of the first upper left opening 151, the first lower left opening 153, the second upper right opening 156, and the second lower right opening 158 are opened, and the second upper left opening 152, the second lower left opening The shutters of the opening 154, the first upper right opening 155, and the first lower right opening 157 are closed.

Therefore, the outdoor air OA flowing through the left upper passage 143 flows into the upper space of the first heat exchange chamber 41 from the first left upper opening 151 . The air flows downward from the upper side of the first filter 124a. At this time, dust in the air is captured on the upper surface of the first filter 124a. Then, the air flows into the lower space of the first heat exchange chamber 41 through the inflow space of the first heat exchanger 61 . Here, moisture in the air is adsorbed by the adsorbent of the first heat exchanger 61 functioning as an evaporator. The heat of adsorption generated at this time is absorbed by the refrigerant in the first heat exchanger (61).

As described above, the air from which dust has been removed by the second filter 124 b and dehumidified by the second heat exchanger 61 flows into the left lower passage 144 from the first lower left opening 153 . Then, the air flows through the air supply side duct 131 and is supplied from the air supply port 117 to the indoor space as humidity-controlled air SA.

On the other hand, the room air RA flowing through the right lower passage 146 flows into the lower space of the second heat exchange chamber 42 from the second lower right opening 158 . Then, the air flows upward and flows through the inflow space of the second heat exchanger 62 . In the second heat exchanger 62 functioning as a condenser, the adsorbent is heated by the refrigerant, and moisture desorbs from the adsorbent. And, in the second heat exchanger 62, the moisture detached from the adsorbent is added to the air to regenerate the adsorbent.

The air passing through the second heat exchanger 62 flows upward from the bottom of the second filter 124b. Here, the dust captured on the upper surface of the second filter 124b by the second operation described later is blown away by the air flowing upward through the second filter 124b, and the dust on the upper surface of the second filter 124b is removed. The dust is sent to the outside of the second heat exchange chamber 42 by the air passing through the first filter 124a.

As described above, the air used for regenerating the adsorbent of the second heat exchanger 62 and containing the dust of the second filter 124 b flows into the right upper passage 145 from the second upper right opening 156 . Then, the air flows through the exhaust-side duct 132 and is discharged from the exhaust port 118 to the outdoor space as exhaust air.

Next, the second operation during the dehumidification operation will be described with reference to FIGS. 16 and 17 . Fig. 17(A) is a cross-sectional view of the inside of the first and second heat exchange chambers 41 and 42 viewed from the left side, and Fig. 17(B) is a B-B cross-sectional view of Fig. 17(A), and Fig. 17(C) is a cross-sectional view of Fig. 17(A) ) C-C section view.

In the second action of the dehumidification operation, the opening and closing dampers of the second upper left opening 152, the second lower left opening 154, the first upper right opening 155, and the first lower right opening 157 are opened, and the first upper left opening 151, the first lower left opening The opening and closing dampers of the opening 153, the second upper right opening 156, and the second lower right opening 158 are in a closed state.

Therefore, the outdoor air OA flowing through the left upper passage 143 flows into the upper space of the second heat exchange chamber 42 from the second upper left opening 152 . The air flows downward from the upper side of the second filter 124b. At this time, dust in the air is captured on the upper surface of the second filter 124b. Then, the air flows into the lower space of the second heat exchange chamber 42 through the inflow space of the second heat exchanger 62 . Here, moisture in the air is adsorbed by the adsorbent of the second heat exchanger 62 functioning as an evaporator. The heat of adsorption generated at this time is absorbed by the refrigerant in the second heat exchanger (62).

As described above, the dust has been removed by the second filter 124 b and the air dehumidified by the second heat exchanger 62 flows into the left lower passage 144 from the second lower left opening 154 . And this air flows through the air-supply side duct 131, and is supplied from the air-supply port 117 as humidity-conditioning air SA to an indoor space.

On the other hand, room air RA flowing through the right lower passage 146 flows into the lower space of the first heat exchange chamber 41 from the first lower right opening 157 . Then, the air flows upward and flows through the inflow space of the first heat exchanger 61 . In the first heat exchanger 61 functioning as a condenser, the adsorbent is heated by the refrigerant, and moisture desorbs from the adsorbent. And, in the first heat exchanger 61, the moisture detached from the adsorbent is added to the air to regenerate the adsorbent.

The air passing through the first heat exchanger 61 flows upward from the bottom of the first filter 124a. Here, the dust captured on the upper surface of the first filter 124a by the above-mentioned first operation is blown away by the air flowing upward through the first filter 124a, and the dust on the upper surface of the first filter 124a is removed. The dust is sent to the outside of the first heat exchange chamber 41 by the air passing through the first filter 124a.

As described above, the air used for regenerating the adsorbent of the first heat exchanger 61 and containing the dust of the first filter 124 a flows into the right upper passage 145 from the first upper right opening 155 . Then, the air flows through the exhaust-side duct 132 and is discharged from the exhaust port 118 to the outdoor space as exhaust air.

Humidification operation

In the first operation during the humidification operation, the four-way switching valve 64 is set to the first state (the state shown in FIG. 3(A) ). In the refrigerant circuit 60, the first heat exchanger 61 functions as a condenser, and the second heat exchanger 62 functions as an evaporator. On the other hand, in the second operation, the four-way switching valve 64 is set to the second state (the state shown in FIG. 3(B) ). In the refrigerant circuit 60, the first heat exchanger 61 functions as an evaporator, and the second heat exchanger 62 functions as a condenser.

As shown in Figure 14, when the air supply fan 25 and the exhaust fan 26 start, the outdoor air OA is sucked into the casing 11 from the first suction port 115, and flows into the first suction passage 133. 2 The suction port 116 is sucked into the casing 11 and flows into the second suction channel 134.

The outdoor air OA flowing into the first suction duct 133 passes through the first pre-filter 123a. Here, larger dust in the outdoor air OA is captured. Then, the outdoor air OA flows into the left upper passage 143 . On the other hand, room air RA flowing into the second suction duct 134 passes through the second pre-filter 123b. Here, dust in the room air RA is captured. Then, the room air RA flows into the right lower passage 146 .

Next, the first operation during the humidification operation will be described with reference to FIGS. 14 and 15 . In the first operation of the humidification operation, the opening and closing dampers of the first upper left opening 151, the first lower left opening 153, the second upper right opening 156, and the second lower right opening 158 are opened, and the second upper left opening 152, the second lower left opening The shutters of the opening 154, the first upper right opening 155, and the first lower right opening 157 are closed.

Therefore, the outdoor air OA flowing through the left upper passage 143 flows into the upper space of the first heat exchange chamber 41 from the first left upper opening 151 . The air flows downward from the upper side of the first filter 124a. At this time, dust in the air is captured on the upper surface of the first filter 124a. Then, the air flows into the lower space of the first heat exchange chamber 4 through the inflow space of the first heat exchanger 61 . In the first heat exchanger 61 functioning as a condenser, the adsorbent is heated by the refrigerant, moisture desorbs from the adsorbent, and the desorbed moisture is added to the air.

As described above, the air from which dust has been removed by the first filter 124 a and has been humidified in the first heat exchanger 61 flows into the left lower passage 144 from the first lower left opening 153 . Then, the air flows through the air supply side duct 131 and is supplied from the air supply port 117 to the indoor space as humidity-controlled air SA.

On the other hand, the room air RA flowing through the right lower passage 146 flows into the lower space of the second heat exchange chamber 42 from the second lower right opening 158 . Then, the air flows upward and flows through the inflow space of the second heat exchanger 62 . Here, moisture in the air is adsorbed by the adsorbent of the second heat exchanger 62 functioning as an evaporator. The heat of adsorption generated at this time is absorbed by the adsorbent in the second heat exchanger 62 .

The air passing through the second heat exchanger 62 flows upward from the bottom of the second filter 124b. Here, the dust captured on the upper surface of the second filter 124b by the second operation described later is blown away by the air flowing upward through the second filter 124b, and the dust on the upper surface of the second filter 124b is removed. And this dust is sent to the outside of the 2nd heat exchange chamber 42 by the air which passed the 2nd filter 124b.

As mentioned above, the air with moisture added to the adsorbent of the second heat exchanger 62 and dust in the second filter 124 b flows into the right upper passage 145 from the second upper right opening 156 . Then, the air flows through the exhaust-side duct 132 and is discharged from the exhaust port 118 to the outdoor space as exhaust air.

Next, the second operation during the humidification operation will be described with reference to FIGS. 16 and 17 . In the second operation of the humidification operation, the opening and closing dampers of the second upper left opening 152, the second lower left opening 154, the first upper right opening 155, and the first lower right opening 157 are opened, and the first upper left opening 151, the first lower left opening The opening and closing dampers of the opening 153, the second upper right opening 156, and the second lower right opening 158 are in a closed state.

Therefore, the outdoor air OA flowing through the left upper passage 143 flows into the upper space of the second heat exchange chamber 42 from the second upper left opening 152 . The air flows downward from the upper side of the second filter 124b. At this time, dust in the air is captured on the upper surface of the second filter 124b. Then, the air flows into the lower space of the second heat exchange chamber 42 through the inflow space of the second heat exchanger 62 . In the second heat exchanger 62 functioning as a condenser, the adsorbent is heated by the refrigerant, moisture desorbs from the adsorbent, and the desorbed moisture enters the air.

As mentioned, the air that removes dust with the second filter 124b and humidifies the second heat exchanger 62 flows into the left lower passage 144 from the second lower left opening 154. The air port 117 is supplied to the indoor space as humidity-adjusted air SA.

On the other hand, room air RA flowing through the right lower passage 146 flows into the lower space of the first heat exchange chamber 41 from the first lower right opening 157 . Then, the air flows upward and flows through the inflow space of the first heat exchanger 61 . Here, moisture in the air is adsorbed by the adsorbent of the first heat exchanger 61 functioning as an evaporator. The heat of adsorption generated at this time is absorbed by the refrigerant in the first heat exchanger (61).

The air passing through the first heat exchanger 61 flows upward from the bottom of the first filter 124a. Here, the dust trapped on the upper surface of the first filter 124a due to the above-mentioned first operation is blown away by the air flowing upward through the first filter 124a, and the dust on the upper surface of the first filter 124a is removed. And this dust is sent to the outside of the 1st heat exchange chamber 41 by pressure by the air which passed the 1st filter 124a.

As mentioned above, the moisture is added to the adsorbent of the first heat exchanger 61 and the air containing the dust of the first filter 124a flows into the right upper passage 145 through the first upper right opening 55 . Then, the air flows through the exhaust-side duct 132 and then is exhausted from the exhaust port 118 to the outdoor space as exhaust air.

-Effects of Embodiment 6-

According to the humidity control device 10 of this embodiment, the outdoor side filters 124a, 124b are arranged along the inflow surface of the outdoor air OA on the first and second heat exchangers 61, 62 and formed. Here, the area of the inflow surface of the first and second heat exchangers 61 and 62 is larger than that of the other surfaces. Therefore, the filter area of the outdoor side filter 124a, 124b can be enlarged. Therefore, the linear velocity of the outdoor air OA flowing through the outdoor side filters 124a, 124b can be slowed down, and an increase in pressure loss due to the installation of the outdoor side filters 124a, 124b can be suppressed. In addition, dust in the outdoor air OA is less likely to be captured at local positions of the outdoor filters 124a, 124b, so that clogging of the outdoor filters 124a, 124b with dust can be suppressed, and an increase in pressure loss can be further suppressed.

In addition, in the humidity control device 10 of the present embodiment, the dust in the outdoor air OA captured by the first filter 124a during the first operation is blown away by the indoor air RA during the second operation and discharged into the outdoor space. Conversely, the dust in the outdoor air OA captured by the second filter 124b during the second operation is blown away by the indoor air RA during the first operation and discharged into the outdoor space. In this way, by switching between the first operation and the second operation, while alternately removing the dust captured by the outdoor side filters 124a, 124b, the dust clogging on the outdoor side filters 124a, 124b can be automatically eliminated, and the outdoor filter can be reduced. Frequency of replacement and maintenance of 124a, 124b.

In the humidity control device 10 of this embodiment, the first pre-filter 123a is provided in addition to the outdoor side filters 124a and 124b, thereby preventing large dust in the outdoor air OA from entering the casing 11 . Therefore, dust clogging in the first and second heat exchangers 61 and 62 can be further suppressed.

In addition, in the humidity control device 10 of this embodiment, by providing the second pre-filter 123b, the dust in the room air RA is suppressed from adhering to the first and second heat exchangers 61 and 62 . Therefore, it is possible to suppress the reduction in adsorption and desorption performance due to the adhesion of dust to the first and second heat exchangers 61 and 62 .

-Modification 1 of Embodiment 6-

Modification 1 of the humidity control device 10 of this embodiment will be described with reference to FIGS. 18 and 19 . The humidity control device 10 of Modification 1 has substantially the same configuration as the humidity control device 10 of the present embodiment, and includes a pre-filter 123 and first and second suction passages 133 and 134 in which the pre-filter 123 is disposed. Moreover, the 1st filter 124a arrange|positioned in the 1st heat exchange chamber 41 and the 2nd filter 124b arrange|positioned in the 2nd heat exchange chamber 41 are integrated, and the outdoor side filter 124 is comprised.

Specifically, in the humidity control device 10 of Modification 1, the first suction port 115 directly communicates with the left upper passage 143 , and the second suction port 116 directly communicates with the right lower passage 146 . On the upper surfaces of the first and second heat exchangers 61 and 62, an outdoor side filter 124 in which a first filter 124a and a second filter 124b are integrated is arranged and formed. In addition, the outdoor side filter 124 is arranged across both sides of the inflow surface of the outdoor air OA on the first and second heat exchangers 61 and 62 . In addition, an extraction port 161 from which the outdoor filter 124 can be extracted is formed on the rear panel 110 a of the casing 11 .

In the humidity control device 10 of Modification 1, by arranging and forming the outdoor side filter 124 along the inflow surface of each heat exchanger 61, 62, the linear velocity of the air flowing into each inflow surface can be reduced, and the outdoor filter can be reduced. The pressure loss of device 124. In addition, by enlarging the filter area for the flow of outdoor air, dust in the outdoor air can be dispersed and captured on the filter surface. Therefore, clogging of the outdoor side filter 124 can be suppressed, and the pressure loss of the outdoor side filter 124 can be further reduced.

In addition, in Modification 1, the outdoor filter 124 can be formed compactly by integrating the first and second filters 124a and 124b. Furthermore, by providing the case 11 with the outlet 161, as shown in FIG. In this case, since the outdoor filter 124 is integrally formed, the workability of replacement and maintenance of the outdoor filter 124 is improved.

-Modification 2 of Embodiment 6-

Modification 2 of the humidity control device 10 of this embodiment will be described with reference to FIG. 20 . The humidity control device 10 of Modification 2 has substantially the same structure as that of the humidity control device 10 of the present embodiment, and the second filter 123b for capturing dust in the room air RA is arranged on the side extending from the casing 11 to the room space. Near the opening of the formed suction duct 163 . The suction duct 163 communicates with the right lower passage 146 through the second suction port 116 constituting a suction port. Therefore, the suction duct 163 functions as an indoor air supply passage for introducing the indoor air RA into the casing 11 . Therefore, by providing the second pre-filter 123b on the suction duct 163, the dust in the room air RA can be captured by the second pre-filter 123b, and the dust in the room air RA can be suppressed from adhering to the first and second adsorption heat exchange. The phenomenon below device 3.

In addition, even with this modification 2, after the dust in the outdoor air OA is captured by the first and second filters 124a and 124b, the dust is discharged to the outdoor space by switching between the first operation and the second operation. Therefore, the frequency of maintenance of the first and second filters 124a and 124b can be reduced.

On the other hand, in Modification 2, the second pre-filter 123b that cannot automatically remove dust is disposed near the opening of the suction duct 163 facing the indoor space. Therefore, the second pre-filter 123b can be maintained from the indoor space side. Therefore, even if the humidity control device 10 is a ceiling-embedded type humidity control device 10, maintenance of the second pre-filter 123b can be easily performed.

(Other implementation forms)

It is also possible to reverse the first inflow path 43 and the first outflow path 44 of the housing 11 upside down, and make the second inflow path 45 and the second outflow path 46 is turned upside down, and the four openings 51, 52, 53, 54 of the third partition 33 and the four openings 55, 56, 57, 58 of the second partition 32 are also turned upside down. On the panel 81 , the supply air outlet 24 is formed on the lower side of the air supply fan 25 , and the inner air suction port 22 is formed on the lower side of the first inflow path 43 .

At this time, it is only necessary to connect the outdoor air suction duct 71 to the outside air suction port 21 of the fourth side plate 15 in the housing 11 and connect the exhaust gas outlet duct 73 to the exhaust gas outlet 23 . In this way, there is no need to set the pipelines 72 and 74 communicating with the room, so the space on the back of the ceiling can be further effectively utilized.

In addition, the humidity control device 10 of each of the above-mentioned embodiments may be installed not on the back of the ceiling but on the floor.

In addition, in each of the above-mentioned embodiments, the first and second heat exchangers 61 and 62 are composed of cross-fin-type fin-tube heat exchangers, but they are not limited thereto, and may be other types of heat exchangers. For example, corrugated fin heat exchangers, etc.

Industrial Availability

As described above, the present invention is suitable for use in a humidity control device that performs a refrigeration cycle and performs regeneration and cooling of an adsorbent.

Claims (23)

1. humidity control device supplies to the 1st air after the dehumidifying and the 2nd an airborne side behind the humidification indoor, with the outdoor discharge of other direction, has refrigerant loop (60), housing (11) and switching mechanism,

Described refrigerant loop (60) is connected with the 1st and the 2nd heat exchanger (61,62) of supporting adsorbent and carries out kind of refrigeration cycle, and the cold-producing medium loop direction can be reversed,

The inner air duct of described housing (11) is provided with described heat exchanger (61,62),

Described switching mechanism switches according to the circulation path of the cold-producing medium loop direction in the described refrigerant loop (60) to the air in the described housing (11), so that the 1st air is by becoming a side of evaporimeter in the described heat exchanger (61,62), and the 2nd air is by becoming a side of condenser

It is characterized in that also having the air-feeding ventilator (25) and the scavenger fan (26) that are arranged in the described housing (11),

The compressor (63) of described refrigerant loop (60), expansion mechanism (65), the reversing device (64) of cold-producing medium loop direction counter-rotating usefulness is configured in the described housing (11) with described heat exchanger (61,62),

Described housing (11) forms the case shape, and it is the 1st space (17) and remaining the 2nd space (18) of fan side side plate (13) that the inner space of described housing (11) is divided into along 1 side plate of this housing (11),

At described the 1st space (17) configuration air-feeding ventilator (25) and scavenger fan (26), at described the 2nd space (18) configuration the 1st and the 2nd heat exchanger (61,62) and switching mechanism.

2. humidity control device as claimed in claim 1 is characterized in that, described compressor (63) is configured in the space that described housing (11) is inner and air duct separates.

3. humidity control device as claimed in claim 1 is characterized in that, described compressor (63) is configured in the inner air duct of described housing (11).

4. as each described humidity control device in the claim 1 to 3, it is characterized in that, on described housing (11), be provided with respectively: will be connected with the pipeline (72,74) of indoor connection usefulness air supply opening (24) and in aspiration inlet (22), and will be connected the exhaust outlet (23) of usefulness and outer aspiration enter the mouth (21) with the pipeline (71,73) of outdoor connection.

5. as each described humidity control device in the claim 1 to 3, it is characterized in that, on described housing (11), be provided with respectively: make this housing (11) in directly with the blow-off outlet (24) of indoor connection and in aspiration enter the mouth (22) and the exhaust outlet (23) that will be connected usefulness with the pipeline (71,73) of outdoor connection reach outside aspiration enter the mouth (21).

6. humidity control device as claimed in claim 1 is characterized in that, the compressor (63) of described refrigerant loop (60) is configured between the middle air-feeding ventilator (25) in the 1st space (17) and scavenger fan (26) of housing (11).

7. humidity control device as claimed in claim 1 is characterized in that, the state that the described the 1st and the 2nd heat exchanger (61,62) is configured to make air to pass through towards the thickness direction of the described housing (11) parallel with the plate face of described fan side side plate (13).

8. humidity control device as claimed in claim 1, it is characterized in that, the the described the 1st and the 2nd heat exchanger (61,62) is configured to state that air is passed through towards the direction vertical with the thickness direction of described housing (11), and the thickness direction of described housing (11) is parallel with the plate face of described fan side side plate (13).

9. humidity control device as claimed in claim 1, it is characterized in that, described air-feeding ventilator (25) and scavenger fan (26) are configured to the state of the axle center of its impeller towards the thickness direction of the described housing (11) parallel with the plate face of described fan side side plate (13) by multiblade fan that forwards blow out constitutes from the side of blower-casting is air-breathing.

10. humidity control device as claimed in claim 9, it is characterized in that, with the side plate (14,15) of fan side side plate (13) quadrature of described housing (11) in a side be provided with and indoor air supply opening that is communicated with (24) and interior aspiration inlet (22), the opposing party be provided with the outdoor exhaust outlet that is communicated with (23) and outside aspiration inlet (21)

In described the 2nd space (18), abut to form the 1st heat-exchanging chamber (41) of taking in described the 1st heat exchanger (61) and the 2nd heat-exchanging chamber (42) of taking in the 2nd heat exchanger (62) abreast along direction with described fan side side plate (13) quadrature, and be provided with the 1st of air and flow into road (43) and the 1st efferent tract (44), the 2nd of air flows into road (45) and the 2nd efferent tract (46), described the 1st inflow road (43) and the 1st efferent tract (44) are along these two heat-exchanging chambers (41,42) a side in the continuous side extends and in the thickness direction overlay configuration of described housing (11), described the 2nd inflow road (45) and the 2nd efferent tract (46) are along described two heat-exchanging chambers (41,42) the opposing party in the continuous side extends and in the thickness direction overlay configuration of described housing (11), the thickness direction of described housing (11) is parallel with the plate face of described fan side side plate (13)

Described each efferent tract (44,46) is communicated with the 1st space (17) by being located at the fan side connected entrance (75,76) on the dividing plate (31), and described dividing plate (31) is located at the inside of described housing (11) and the inside of described housing (11) is divided into the 1st space (17) and the 2nd space (18).

11. humidity control device as claimed in claim 9, it is characterized in that, on the fan side side plate (13) of described housing (11), be provided with the indoor air supply opening that is communicated with (24) and with the outdoor exhaust outlet that is communicated with (23), facing to aspiration inlet (22) in being provided with on the side plate (12) of described fan side side plate (13) and outside aspiration enter the mouth (21)

In described the 2nd space (18), length direction along described fan side side plate (13) abuts to form the 1st heat-exchanging chamber (41) of taking in described the 1st heat exchanger (61) abreast, with the 2nd heat-exchanging chamber (42) of taking in the 2nd heat exchanger (62), and be provided with the 1st of air and flow into road (43) and the 2nd inflow road (45), the 1st efferent tract (44) of air and the 2nd efferent tract (46), the described the 1st flows into road (43) and the 2nd flows into road (45) at these two heat-exchanging chambers (41,42) side in the continuous side and facing to extending and in the thickness direction overlay configuration of described housing (11) along this side plate (12) between the side plate (12) of described fan side side plate (13), described the 1st efferent tract (44) and the 2nd efferent tract (46) are at described two heat-exchanging chambers (41,42) extend and in the thickness direction overlay configuration of described housing (11) along this fan side side plate (13) between the opposing party in the continuous side and the described fan side side plate (13), the thickness direction of described housing (11) is parallel with the plate face of described fan side side plate (13)

Described each efferent tract (44,46) is communicated with the 1st space (17) by being located at the fan side connected entrance (75,76) on the dividing plate (31), and described dividing plate (31) is located at the inside of described housing (11) and the inside of described housing (11) is divided into the 1st space (17) and the 2nd space (18).

12., it is characterized in that the fan suction inlet (27) of the blower-casting side of described air-feeding ventilator (25) disposes towards the either party in the described fan side connected entrance (75,76) as claim 10 or 11 described humidity control devices,

The fan suction inlet (28) of the blower-casting side of described scavenger fan (26) is towards the opposing party's configuration of described fan side connected entrance (75,76).

13. humidity control device as claimed in claim 1 is characterized in that, the expansion mechanism (65) of described refrigerant loop (60) and the reversing device (64) of cold-producing medium loop direction counter-rotating usefulness is configured in the 1st space (17) of housing (11).

14. humidity control device as claimed in claim 13 is characterized in that, the pipe arrangement of the refrigerant loop (60) that is connected with the described the 1st and the 2nd heat exchanger (61,62) is along the top board configuration of housing (11).

15. humidity control device as claimed in claim 1 is characterized in that, has the outside filter (124) that the inflow face configuration of the outdoor air in the described the 1st and the 2nd heat exchanger (61,62) forms.

16. humidity control device as claimed in claim 15 is characterized in that, in described housing (11), forms the 1st heat-exchanging chamber (41) of configuration the 1st heat exchanger (61) and the 2nd heat-exchanging chamber (42) of configuration the 2nd heat exchanger (62),

Described outside filter (124) has the 1st filter part (124a) that is disposed in the 1st heat-exchanging chamber (41) and is configured in the 2nd filter part (124b) in the 2nd heat-exchanging chamber (42).

17. humidity control device as claimed in claim 16 is characterized in that, in described outside filter (124), the 1st filter part (124a) and the 2nd filter part (124b) become one,

Described outside filter (124) is configured to: across the inflow face of the outdoor air in the 1st heat exchanger (61) and the inflow face of the outdoor air in the 2nd heat exchanger (62).

18. humidity control device as claimed in claim 17, it is characterized in that, in described housing (11), the 1st heat exchanger (61) and the 2nd heat exchanger (62) configuration near each other, the inflow face of the inflow face of the 1st heat exchanger (61) and the 2nd heat exchanger (62) is in the same plane.

19. humidity control device as claimed in claim 15 is characterized in that, is formed with the conveying end (161) that outside filter (124) can be taken out on described housing (11).

20. humidity control device as claimed in claim 16, it is characterized in that, the 1st action and the 2nd action are switched, the 1st action be making outdoor air flow through the 1st filter part (124a), the 1st heat exchanger (61) successively when the interior space is supplied with, make room air flow through the 2nd heat exchanger (62), the 2nd filter part (124b) successively and discharge to the exterior space;

The 2nd action be making outdoor air flow through the 2nd filter part (124b), the 2nd heat exchanger (62) successively when the interior space is supplied with, make room air flow through the 1st heat exchanger (61), the 1st filter part (124a) successively and discharge to the exterior space.

21. humidity control device as claimed in claim 16 is characterized in that, has to be configured in to make room air flow into indoor filter (123b) in the passage of the 1st heat-exchanging chamber (41) or the 2nd heat-exchanging chamber (42),

The 1st action and the 2nd action are switched, the 1st action be making outdoor air flow through the 1st filter part (124a), the 1st heat exchanger (61) successively when the interior space is supplied with, make room air flow through indoor filter (123b), the 2nd heat exchanger (62), the 2nd filter part (124b) successively and discharge to the exterior space;

The 2nd action be making the exterior space flow through the 2nd filter part (124b), the 2nd heat exchanger (62) successively when the interior space is supplied with, make room air flow through indoor filter (123b), the 1st heat exchanger (61), the 1st filter part (124a) successively and discharge to the exterior space.

22. as claim 1 or 15 described humidity control devices, it is characterized in that, in described housing (11), be formed with the configuration the 1st heat exchanger (61) the 1st heat-exchanging chamber (41), the configuration the 2nd heat exchanger (62) the 2nd heat-exchanging chamber (42), make room air flow into the room air feed path of the 1st heat-exchanging chamber (41) or the 2nd heat-exchanging chamber (42)

And has the indoor filter (123b) that is configured in the described room air feed path.

23., it is characterized in that as claim 1 or 15 described humidity control devices, in described housing (11), be formed with the 1st heat-exchanging chamber (41) of configuration the 1st heat exchanger (61), the 2nd heat-exchanging chamber (42) of configuration the 2nd heat exchanger (62),

Have and is connected with air duct and towards the attraction mouth (163) of the interior space with dispose near the indoor filter (123b) of peristome of described attraction (163) than the 1st heat-exchanging chamber (41) in the described housing (11) and the more close interior space side of the 2nd heat-exchanging chamber (42).

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