JP2006337019A - Humidity controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve reliability of a humidity controller by cooling a heat radiation section of a driving circuit for controlling machine parts such as a blowing means and compressor. <P>SOLUTION: The driving circuit 130 is arranged in air passage where treated air of the humidity controller circulates, and the heat radiation section 171 of the driving circuit 130 is cooled by the treated air. The heat radiation section of the driving circuit 130 is arranged in a second air passage where second air after humidity control by an adsorption element circulates. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a humidity control apparatus including an adsorbing element and a refrigerant circuit, and more specifically to a structure for cooling a driving circuit of a blowing unit or a compression mechanism.

  Conventionally, as a humidity control device, there is a desiccant humidity control device that performs air conditioning using a moisture adsorption action of a dehumidifying agent (desiccant).

  For example, a desiccant humidity control apparatus includes an adsorption element capable of absorbing and desorbing moisture in air, a refrigerant circuit for cooling / heating air, an air supply fan for sucking outside air and supplying it to the room, And an exhaust fan for sucking air and discharging it to the outside of the room. The refrigerant circuit is provided with a compressor for compressing the refrigerant.

In this configuration, for example, when air conditioning is performed indoors in the summer, outdoor air sucked by an air supply fan from outside is supplied to the room after being dehumidified and cooled through an adsorption element and a cooling circuit. (See Patent Document 1).
JP 2003-28458 A

  In such a humidity control device, when the temperature of the air supplied to the room, the air flow rate, and the like are more strictly controlled, an electric motor such as an inverter or the like is used for an electric motor such as a compressor of a refrigerant circuit or an air supply / exhaust fan. It is conceivable to provide a circuit to make these electric motors variable. In this case, since the inverter generates heat, a cooling means for preventing the inverter from generating heat is required. In addition, when it is necessary to transform an electric motor or an electrical instrument, it is necessary to provide electronic circuit components such as a reactor and a transformer. Also in this case, since these electronic circuit components may generate heat, a cooling means for preventing this heat generation is required.

  The present invention has been made in view of the above points, and an object thereof is a drive circuit that controls mechanical parts such as a blowing unit and a compression mechanism in a humidity control apparatus including an adsorbing element and a refrigerant circuit. It is providing the cooling structure for cooling the thermal radiation part of this, and aiming at the improvement of the reliability of a humidity control apparatus.

  According to the present invention, in the humidity control apparatus, a cooling structure is provided for cooling heat generated from a drive circuit (130) that controls mechanical parts of a blowing unit and a compression mechanism of a refrigerant circuit.

  Specifically, in the first aspect of the present invention, the first air passage in which the first air blowing means (95) for supplying the first air to the room is disposed in the casing, and the second air is discharged to the outside. A second air passage in which the second blower means (96) is disposed, an adsorbing element (81) for humidifying or dehumidifying one or both of the first air and the second air, the first air and the second air 2 A refrigerant circuit that heats or cools one or both of the air, and a drive circuit (130) that controls one or both of the air blowing means (95, 96) and the refrigerant circuit. We assume a wet device.

  The humidity control apparatus is characterized in that a part of the drive circuit (130) is disposed in the first air passage or the second air passage as a heat radiating section (171).

  In the first aspect of the present invention, the heat dissipating part (171) of the drive circuit (for example, inverter) (130) for controlling the mechanical parts (for example, the electric motor) of the air blowing means (95, 96) and the compression mechanism of the refrigerant circuit is provided. The first air or the second air passes through the first air passage or the second air passage. With this configuration, the heat radiating portion (171) of the drive circuit (130) can be cooled.

  According to a second aspect of the present invention, in the humidity control apparatus of the first aspect, the second air after the heat radiating portion (171) of the drive circuit (130) is conditioned by the adsorption element (81). It arrange | positions in the 2nd air passage which circulates.

  In the invention according to claim 2, the heat radiating portion (171) of the drive circuit (130) is disposed in the second air passage through which the second air after being conditioned by the adsorption element (81) flows, The second air is used for cooling.

  In this configuration, when the adsorption element (81) is used for dehumidification of the second air, the second air is in a low humidity state. Therefore, when the heat radiating portion (171) of the drive circuit (130) is cooled with the second air, it is possible to prevent moisture condensation and prevent the vicinity of the drive circuit (130) from becoming wet.

  When the adsorption element (81) is used for humidifying the second air, the heat of the second air is absorbed by the desorption of moisture from the adsorption element (81) to the second air. Therefore, the second air has a lower temperature than the temperature of the heat radiating portion (171) of the drive circuit (130). For this reason, the heat radiating portion (171) of the drive circuit (130) can be cooled more effectively.

  According to a third aspect of the present invention, in the humidity control apparatus of the first aspect, the first air after the heat radiating part (171) of the drive circuit (130) is conditioned by the adsorption element (81). It arrange | positions in the 1st air path which distribute | circulates.

  In the invention according to claim 3, the heat radiating portion (171) of the drive circuit (130) is disposed in the first air passage through which the first air conditioned by the adsorption element (81) flows, The first air is used for cooling.

  In this configuration, when the adsorption element (81) is used for dehumidification of the first air, the first air is in a low humidity state. Therefore, when the heat radiating portion (171) of the drive circuit (130) is cooled with the first air, it is possible to prevent moisture condensation and prevent the vicinity of the drive circuit (130) from becoming wet.

  When the adsorption element (81) is used for humidifying the first air, the heat of the first air is absorbed by desorption of moisture from the adsorption element (81) to the first air. Therefore, the first air has a lower temperature than the temperature of the heat radiating portion (171) of the drive circuit (130). For this reason, the heat radiating portion (171) of the drive circuit (130) can be cooled more effectively.

  According to a fourth aspect of the present invention, in the humidity control apparatus of the first aspect, the refrigerant circuit includes a heat exchanger (103) for cooling the first air that has been dehumidified by the adsorption element (81). And the heat radiating section (171) of the drive circuit (130) is arranged in a first air passage through which the first air after passing through the heat exchanger (103) flows.

  According to the fourth aspect of the present invention, the heat radiating portion (171) of the drive circuit (130) is cooled by the first air after being cooled by the heat exchanger (103). In this configuration, the temperature of the first air is lower than that of the heat radiating portion (171) of the drive circuit (130). Therefore, the heat radiation part (171) of the drive circuit (130) can be sufficiently cooled.

  According to a fifth aspect of the present invention, in the humidity control apparatus of the first aspect, the refrigerant circuit includes a heat exchanger (103) for cooling the second air that has been dehumidified by the adsorption element (81). And the heat radiating portion (171) of the drive circuit (130) is arranged in a second air passage through which the second air after passing through the heat exchanger (103) flows.

  According to the fifth aspect of the present invention, the heat radiating portion (171) of the drive circuit (130) is cooled by the second air after being cooled by the heat exchanger (103). In this configuration, the temperature of the second air is lower than that of the heat radiating portion (171) of the drive circuit (130). Therefore, the heat radiation part (171) of the drive circuit (130) can be sufficiently cooled.

  A sixth aspect of the present invention is the humidity control apparatus according to the first aspect, wherein the heat radiating portion (171) of the drive circuit (130) is the first air before being conditioned by the adsorption element (81). It arrange | positions at the 1st air path which distribute | circulates.

  According to the sixth aspect of the present invention, the heat radiating portion (171) of the drive circuit (130) is cooled by the first air before being conditioned by the adsorption element (81). The first air is stable at a lower temperature than the temperature of the heat dissipating part (171) of the drive circuit (130). For this reason, the heat radiating portion (171) of the drive circuit (130) can be sufficiently and stably cooled.

  A seventh aspect of the present invention is the humidity control apparatus according to the first aspect, wherein the heat radiating portion (171) of the drive circuit (130) is the second air before being conditioned by the adsorption element (81). It arrange | positions in the 2nd air passage which distribute | circulates.

  In the seventh aspect of the present invention, the heat radiating portion (171) of the drive circuit (130) is cooled by the second air before being conditioned by the adsorption element (81). The second air is stable at a lower temperature than the temperature of the heat radiating portion (171) of the drive circuit (130). For this reason, the heat radiating portion (171) of the drive circuit (130) can be sufficiently and stably cooled.

  The invention according to claim 8 is the first air passage in which the first air blowing means (95) for supplying the first air to the room is disposed in the casing, and the second air blowing means for discharging the second air to the outside. (96) is disposed, the adsorbing element (81) for humidifying or dehumidifying one or both of the first air and the second air, and one of the first air and the second air Or a humidity control device comprising a refrigerant circuit for heating or cooling both, and a drive circuit (130) for controlling one or both of the air blowing means (95, 96) and the refrigerant circuit. It is said.

  The humidity control apparatus is provided with cooling air blowing means (152) in the electrical component casing (151) that houses the drive circuit (130), and the heat dissipation part (171) of the drive circuit (130) is provided. The cooling air blowing means (152) is arranged in the flow path of the blowing air.

  In the invention according to claim 8, the drive circuit (130) is housed in the electrical component casing (151), and the cooling air blowing means (152) provided in the electrical component casing (151) is used to The heat radiating part (171) of the drive circuit (130) is configured to be cooled. With this configuration, the blown air generated by the cooling air blowing means (152) can reliably cool the heat radiating portion (171) of the drive circuit (130).

  In the invention according to claim 9, in the electrical component casing (151), a cooling passage (172) through which blown air flows is defined, and a part of the drive circuit (130) serves as a heat radiating portion (171). It is arranged in the cooling passage (172).

  According to the ninth aspect of the present invention, the cooling passage (172) is provided in the electrical component casing (151) so as to be separated from the internal space of the electrical component casing (151). The heat radiating section (171) of the drive circuit (130) is disposed in the cooling passage (172) and is cooled by the cooling air blowing means (152). With this configuration, in the electrical component casing (151), the blown air passes through the independent cooling passage (172) for cooling the heat radiating portion (171) of the drive circuit (130). Therefore, the heat radiating portion (171) of the drive circuit (131) can be cooled more reliably.

  According to a tenth aspect of the present invention, in the humidity control apparatus according to any one of the first to ninth aspects, the cooling fin (131) is provided in the heat dissipation portion (171) of the drive circuit (130). It is a feature.

  In the invention according to claim 10, since the cooling fin (131) is provided in the heat radiating portion (171) of the drive circuit (130), the heat generated from the heat radiating portion (171) is applied to the cooling fin (131). Conduct. With this configuration, the contact area between the heat radiation portion (171) of the drive circuit (130) and the blown air is increased, and the cooling effect can be enhanced.

  According to the first aspect of the present invention, the heat radiating portion (171) of the drive circuit (130) for controlling the mechanical parts of the blowing means (95, 96) and the compression mechanism of the refrigerant circuit is connected to the first air passage or the second air passage. The first air or the second air passes through the air passage. For this reason, the heat radiating part (171) of the drive circuit (130) can be cooled by the first air or the second air. At this time, by setting the flow velocity of the first air or the second air to a predetermined value or higher, the heat radiating portion (171) of the drive circuit (130) can be effectively cooled. Therefore, the reliability in the operation of the humidity control apparatus can be improved.

  According to invention of Claim 2, arrange | positioning the thermal radiation part (171) of a drive circuit (130) in the 2nd air passage through which the 2nd air after humidity regulation by the adsorption | suction element (81) distribute | circulates, The second air is used for cooling.

  In this configuration, when the adsorption element (81) is used for dehumidification of the second air, the second air is in a low humidity state. Therefore, when the heat radiating portion (171) of the drive circuit (130) is cooled with the second air, it is possible to prevent moisture condensation and prevent the vicinity of the drive circuit (130) from becoming wet.

  When the adsorption element (81) is used for humidifying the second air, the heat of the second air is absorbed by the desorption of moisture from the adsorption element (81) to the second air. Therefore, the temperature of the second air is lower than that of the heat radiating portion (171) of the drive circuit (130). For this reason, the heat radiation part (171) of the drive circuit (130) can be cooled more effectively.

  According to invention of Claim 3, arrange | positioning the thermal radiation part (171) of a drive circuit (130) in the 1st air path through which the 1st air after humidity control by the adsorption | suction element (81) distribute | circulates, The first air is used for cooling.

  In this configuration, when the adsorption element (81) is used for dehumidification of the first air, the first air is in a low humidity state. Therefore, when the heat radiating part (171) of the drive circuit (130) is cooled with the first air, it is possible to prevent moisture condensation and prevent the vicinity of the drive circuit (130) from becoming wet.

  When the adsorption element (81) is used for humidifying the first air, the heat of the first air is absorbed by desorption of moisture from the adsorption element (81) to the first air. Therefore, the temperature of the first air is lower than that of the heat radiating portion (171) of the drive circuit (130). For this reason, the heat radiating portion (171) of the drive circuit (130) can be cooled more effectively.

  According to the fourth aspect of the present invention, the first air after the heat radiating portion (171) of the drive circuit (130) is dehumidified by the adsorption element (81) and further cooled by the heat exchanger (103). It is configured to cool with. In this configuration, since the temperature of the first air is lower, the heat radiating portion (171) of the drive circuit (130) can be sufficiently cooled.

  According to the fifth aspect of the present invention, the heat radiation portion (171) of the drive circuit (130) is dehumidified by the adsorption element (81) and further cooled by the heat exchanger (103). It is configured to be cooled with air. In this configuration, since the temperature of the second air is lower, the heat radiating section (171) of the drive circuit (130) can be sufficiently cooled.

  In a sixth aspect of the invention, the heat radiating portion (171) of the drive circuit (130) is configured to be cooled with the first air before being conditioned by the adsorption element (81). The first air is stable at a lower temperature than the heat radiating portion (171) of the drive circuit (130). For this reason, the heat radiating portion (171) of the drive circuit (130) can be reliably cooled.

  According to the invention described in claim 7, the heat radiating portion (171) of the drive circuit (130) is configured to be cooled by the second air before being conditioned by the adsorption element (81). . The second air is stable at a lower temperature than the heat radiating portion (171) of the drive circuit (130). For this reason, the heat radiating portion (171) of the drive circuit (130) can be reliably cooled.

  According to the invention described in claim 8, the drive circuit (130) is housed in the electrical component casing (151), and the cooling air blowing means (152) provided in the electrical component casing (151) causes the The heat radiating part (171) of the drive circuit (130) is configured to be cooled. The blown air generated by the cooling air blowing means (152) is stable at a lower temperature than the heat radiating portion (171) of the drive circuit (130). For this reason, the heat radiating part (171) of the drive circuit (130) can be cooled more reliably. Therefore, the reliability in the operation of the humidity control apparatus can be improved.

  According to the ninth aspect of the present invention, the cooling passage (172) is provided in the electrical component casing (151) so as to be partitioned from the internal space of the electrical component casing (151). The heat radiating section (171) of the drive circuit (130) is disposed in the cooling passage (172) and is cooled by the cooling air blowing means (152). With this configuration, in the electrical component casing (151), the blown air passes through the independent cooling passage (172) for cooling the heat radiating portion (171) of the drive circuit (130). Therefore, the heat radiating portion (171) of the drive circuit (131) can be cooled more reliably. In addition, since the blown air does not flow in the space other than the cooling passage (172) in the electrical component casing (151), even if other drive circuit components are arranged in this space, It is possible to prevent dust and the like from adhering.

  According to the invention described in claim 10, the cooling fin (131) is provided in the heat radiating portion (171) of the drive circuit (130), and heat generated from the heat radiating portion (171) is conducted to the cooling fin (131). It is configured to do. With this configuration, the heat transfer area between the heat radiating portion (171) of the drive circuit (130) and the blown air that cools the heat radiating portion (171) is widened, and the cooling effect of the heat radiating portion (171) can be further enhanced. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<Embodiment 1 of the Invention>
Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings.

  The humidity control apparatus according to the present embodiment is configured to perform switching between a dehumidifying operation for supplying dehumidified air to the room and a humidifying operation for supplying the humidified air to the room. The humidity control apparatus includes an adsorbing element (81) and a refrigerant circuit, and is configured to perform a batch type (batch type) operation. Here, the configuration of the humidity control apparatus according to the present embodiment will be described with reference to FIGS. 1, 5, and 7. In the description of the first embodiment, “upper”, “lower”, “left”, “right”, “front”, “rear”, “front”, and “back” refer to the humidity control apparatus shown in FIG. It means directionality when viewed from the front side.

  As shown in FIG. 1, the humidity control apparatus includes a slightly flat rectangular parallelepiped casing (10). The casing (10) houses two adsorbing elements (81a, 81b) and a refrigerant circuit.

  The refrigerant circuit is provided with a regenerative heat exchanger (102) that functions as a condenser, a heat exchanger (103) that functions as an evaporator, a compressor (101), and an expansion valve. In this refrigerant circuit, the refrigeration cycle is performed by circulating the filled refrigerant. The heat exchanger (103) is composed of a first heat exchanger (103a) and a second heat exchanger (103b), and the refrigerant circuit is operated with the first heat exchanger (103a) as an evaporator. And the operation in which the second heat exchanger (103b) serves as an evaporator can be switched.

  As shown in FIG. 7, the adsorption elements (81a, 81b) are configured by alternately laminating flat plate members (83) and corrugated wave plate members (84). The corrugated plate members (84) are laminated so that the ridge line directions of the adjacent corrugated plate members (84) are shifted from each other by 90 °. The adsorption elements (81a, 81b) are formed in a rectangular parallelepiped shape or a rectangular column shape as a whole.

  In the adsorbing element (81a, 81b), in the stacking direction of the flat plate member (83) and the corrugated plate member (84), the humidity adjusting side passageway (85) and the cooling side passageway (86) provide the flat plate member (83). The sections are alternately formed with a sandwich. In this adsorption element (81a, 81b), the humidity adjusting side passageway (85) opens on the long side surface of the flat plate member (83), and the cooling side passageway (86) on the short side surface of the flat plate member (83). ) Is open.

  In the adsorption element (81a, 81b), on the surface of the flat plate member (83) facing the humidity adjustment side passage (85) and the surface of the corrugated plate member (84) provided in the humidity adjustment side passage (85), An adsorbent for adsorbing water vapor is applied. Examples of this type of adsorbent include silica gel, zeolite, ion exchange resin and the like.

  As shown in FIG. 1, in the casing (10), a first panel (11) is provided on the foremost side, and a second panel (12) is provided on the innermost side. In the first panel (11), an air supply port (14) is formed in the lower part near the left end, and an exhaust port (16) is formed in the lower part near the right end. On the other hand, the second panel (12) has an indoor suction port (13) formed in the lower portion near the left end, and an outdoor suction port (15) formed in the lower portion near the right end.

  The interior of the casing (10) is roughly divided into two spaces in the direction from the first panel (11) on the front side to the second panel (12) on the back side.

  The space formed near the first panel (11) of the casing (10) is further divided into left and right spaces by a partition plate (18). Of the left and right spaces, the right space constitutes the exhaust side flow path (41), and the left space constitutes the air supply side flow path (42).

  The exhaust side flow path (41) is a part of the second air passage referred to in the present invention, and communicates with the outside through the exhaust port (16). An exhaust fan (96), a second heat exchanger (103b), and a compressor (101) are installed in the exhaust side flow path (41). The second heat exchanger (103b) causes the air flowing toward the exhaust fan (second air blowing means) (96) to exchange heat with the refrigerant in the refrigerant circuit. The compressor (101) is used for the compression stroke of the refrigerant circuit.

  On the other hand, the air supply side channel (42) is a part of the first air passage referred to in the present invention, and communicates with the room through the air supply port (14). An air supply fan (first air blowing means) (95) and a first heat exchanger (103a) are installed in the air supply side flow path (42). The first heat exchanger (103a) causes the air flowing toward the air supply fan (95) to exchange heat with the refrigerant in the refrigerant circuit.

  Further, on the inner right surface of the casing (10), at a position adjacent to the exhaust side flow path (41), a drive circuit (130) for the compressor (101) and the air supply / exhaust fan (95, 96). Is provided. Furthermore, cooling fins (131) are provided on the surface of the drive circuit (130) to enhance the cooling effect of the heat radiation part (171) of the drive circuit (130). In addition, on the reverse side of the casing (10) provided with the drive circuit (130) and the cooling fin (131), an electrical component box (150) in which a control circuit of the humidity control device is accommodated is installed. Yes.

  The space formed near the second panel (12) of the casing (10) is divided into three spaces on the left and right by the right partition plate (20) and the left partition plate (30).

  The space on the right side of the right partition plate (20) is partitioned into two spaces in the vertical vertical direction. In this space, the upper space constitutes the upper right channel (65), and the lower space constitutes the lower right channel (66). The upper right channel (65) communicates with the exhaust channel (41), but is separated from the outdoor suction port (15). The lower right channel (66) communicates with the outdoor suction port (15), but is separated from the exhaust side channel (41).

  The space on the left side of the left partition plate (30) is partitioned into two spaces in the vertical vertical direction. In this space, the upper and lower spaces constitute the upper left channel (67), and the lower space constitutes the lower left channel (68). The upper left channel (67) communicates with the air supply channel (42), but is separated from the indoor suction port (13). The lower left channel (68) communicates with the indoor suction port (13), but is separated from the air supply channel (42).

  Two adsorbing elements (81a, 81b) are installed between the right partition plate (20) and the left partition plate (30). These adsorbing elements (81a, 81b) are arranged in a state where they are lined up and down at a predetermined interval. Specifically, a first adsorption element (81a) is provided near the first panel (11) on the near side, and a second adsorption element (81b) is provided on the near side of the second panel (12). .

  The first and second adsorption elements (81a, 81b) are installed in such a posture that the laminating direction of the flat plate member (83) and the corrugated plate member (84) in each of them coincides with the horizontal direction of the casing (10). In each adsorbing element (81a, 81b) in this posture, the humidity adjustment side passageway (85) is opened on the upper and lower side surfaces thereof, and the cooling side passageway (86) is opened on the front and rear side surfaces thereof. None of the passages (85, 86) are open.

  The space between the right partition plate (20) and the left partition plate (30) includes a first flow path (51), a second flow path (52), a first upper flow path (53), and a first lower flow path. (54), a second upper channel (55), a second lower channel (56), and a central channel (57).

  Further, as shown in FIG. 5, the first flow path (51) is formed on the front side (right side in FIG. 5) of the first adsorption element (81a), and the cooling side passage of the first adsorption element (81a). Communicate with (86). The second flow path (52) is formed on the back side (left side in FIG. 5) of the second adsorption element (81b) and communicates with the cooling side passage (86) of the second adsorption element (81b).

  The first upper passage (53) is formed above the first adsorption element (81a) and communicates with the humidity adjustment side passage (85) of the first adsorption element (81a). The first lower flow path (54) is formed below the first adsorption element (81a) and communicates with the humidity adjustment side passageway (85) of the first adsorption element (81a). The second upper passage (55) is formed above the second adsorption element (81b) and communicates with the humidity adjustment side passage (85) of the second adsorption element (81a). The second lower flow path (56) is formed below the second adsorption element (81b) and communicates with the humidity adjustment side passage (85) of the second adsorption element (81b).

  The central channel (57) is formed between the first adsorption element (81a) and the second adsorption element (81b), and communicates with the cooling side passageway (86) of both adsorption elements (81a, 81b). . In the central flow path (57), the regenerative heat exchanger (102) is installed in a substantially vertical state. The regenerative heat exchanger (102) causes the air flowing through the central flow path (57) to exchange heat with the refrigerant in the refrigerant circuit. The regenerative heat exchanger (102) functions as a condenser and constitutes a heater for heating the air.

  A first shutter (61) is provided in a partition between the central channel (57) and the first lower channel (54). On the other hand, a second shutter (62) is provided in a partition between the central channel (57) and the second lower channel (56). Both the first shutter 61 and the second shutter 62 are configured to be openable and closable.

  As shown in FIG. 1, the right partition plate (20) has a first right opening (21), a second right opening (22), a first upper right opening (23), a first lower right opening (24), A second upper right opening (25) and a second lower right opening (26) are formed. Each of these openings (21, 22,...) Includes an opening / closing shutter and is configured to be freely opened and closed.

  The first right opening (21) is provided in the lower part on the near side of the right partition plate (20). In a state where the opening / closing shutter of the first right opening (21) is opened, the first flow path (51) and the lower right flow path (66) communicate with each other. The second right opening (22) is provided in the lower part of the rear side of the right partition plate (20). In a state where the opening / closing shutter of the second right opening (22) is opened, the second flow path (52) and the lower right flow path (66) communicate with each other.

  The first upper right opening (23) is provided in the upper part of the right partition plate (20) adjacent to the first adsorption element (81a). In a state where the opening / closing shutter of the first upper right opening (23) is opened, the first upper channel (53) and the upper right channel (65) communicate with each other. The first lower right opening (24) is provided in the lower part of the right partition plate (20) adjacent to the first adsorption element (81a). When the open / close shutter of the first lower right opening (24) is opened, the first lower flow path (54) and the right lower flow path (66) communicate with each other.

  The second upper right opening (25) is provided in the upper part of the right partition plate (20) adjacent to the second adsorption element (81b). When the open / close shutter of the second upper right opening (25) is opened, the second upper channel (55) and the upper right channel (65) communicate with each other. The second lower right opening (26) is provided in the lower part of the right partition plate (20) adjacent to the second adsorption element (81b). In a state where the opening / closing shutter of the second lower right opening (26) is opened, the second lower channel (56) and the lower right channel (66) communicate with each other.

  The left partition plate (30) includes a first left opening (31), a second left opening (32), a first upper left opening (33), a first lower left opening (34), a second upper left opening (35), and A second lower left opening (36) is formed. Each of these openings (31, 32,...) Includes an opening / closing shutter and is configured to be freely opened and closed.

  The first left opening (31) is provided at the lower part on the near side of the left partition plate (30). In a state where the opening / closing shutter of the first upper left opening (31) is opened, the first flow path (51) and the lower left flow path (68) communicate with each other. The second left opening (32) is provided in the lower part on the back side of the left partition plate (30). When the open / close shutter of the second left side opening (32) is opened, the second channel (52) and the lower left channel (68) communicate with each other.

  The first upper left opening (33) is provided in the upper part of the left partition plate (30) adjacent to the first adsorption element (81a). In a state where the opening / closing shutter of the first upper left opening (33) is opened, the first upper channel (53) and the upper left channel (67) communicate with each other. The first lower left opening (34) is provided in the lower part of the left partition plate (30) adjacent to the first adsorption element (81a). In a state where the opening / closing shutter of the first lower left opening (34) is opened, the first lower flow path (54) and the lower left flow path (68) communicate with each other.

  The second upper left opening (35) is provided in the upper part of the left partition plate (30) adjacent to the second adsorption element (81b). When the open / close shutter of the second upper left opening (35) is opened, the second upper channel (55) and the upper left channel (67) communicate with each other. The second lower left opening (36) is provided in the lower part of the left partition plate (30) adjacent to the second adsorption element (81b). In a state where the opening / closing shutter of the second lower left opening (36) is opened, the second lower channel (56) and the lower left channel (68) communicate with each other.

  Next, the configuration in the vicinity of the drive circuit (130) described above will be described in detail with reference to FIG.

  More specifically, the drive circuit (130) provided on the inner right surface of the casing (10) adjacent to the exhaust side flow path (41) is a first inverter (control circuit for the compressor (101)). 130a) and a second inverter (130b) which is a control circuit for the air supply / exhaust fan (95, 96). These first and second inverters (130a, 130b) are fixed in parallel on the printed circuit board (132) in the horizontal direction. The printed circuit board (132) is attached by a plurality of spacers (133) and a support plate (134) provided at the lower part of the printed circuit board (132).

  In addition, cooling fins (131) are formed on the surface of the heat radiation part (171) of the first and second inverters (130a, 130b) so as to straddle both the first inverter (130a) and the second inverter (130b). Is provided. The cooling fin (131) includes a plate-like fin substrate (131a) and a plurality of cooling plates (131b) provided in a vertical direction from the fin substrate (131a). The fin substrate (131a) is installed on the surface of the heat radiating part (171) of the first and second inverters (130a, 130b). The cooling plate (131b) provided on the fin substrate (131a) extends leftward from the heat radiating part (171) of the first and second inverters (130a, 130b), and enters the exhaust side flow path (41). It is in a state protruding.

  Also, the purpose is to mount the cooling fin (131) and seal the first and second inverters (130a, 130b) between the first and second inverters (130a, 130b) and the fin substrate (131a). A sealing member (135) is provided.

  Further, the electrical component box (150) installed outside the casing (10) has a rectangular parallelepiped electrical component casing (151), and the open / close shutter and the supply shutter are provided in the electrical component casing (151). Control circuits such as air / exhaust fans (95, 96) are housed.

-Driving action-
The operation of the humidity control apparatus will be described. This humidity control apparatus switches between a dehumidifying operation and a humidifying operation. In addition, the humidity controller performs a dehumidifying operation and a humidifying operation by alternately repeating a first operation and a second operation as will be described later.

  During the dehumidifying operation, in the refrigerant circuit, the first heat exchanger (103a) serves as an evaporator, while the second heat exchanger (103b) is deactivated. On the other hand, in the humidifying operation, in the refrigerant circuit, the second heat exchanger (103b) serves as an evaporator, while the first heat exchanger (103a) is stopped.

  In addition, as shown in FIGS. 1 to 4, when the air supply fan (95) is driven during the dehumidifying operation or the humidifying operation of the humidity control apparatus, the outdoor air (OA) is passed through the outdoor suction port (15) through the casing ( 10) is taken in. The outdoor air is supplied as the first air to the room through the air supply port (14) after passing through a predetermined air passage. Here, the flow path of the first air from the outdoor suction port (15) to the air supply port (14) becomes the first air passage. On the other hand, when the exhaust fan (96) is driven, indoor air (RA) is taken into the casing (10) through the indoor suction port (13). This room air is discharged as the second air to the outside through the exhaust port (16) after passing through a predetermined air passage. Here, the flow path of the second air from the indoor suction port (13) to the exhaust port (16) is the second air passage.

≪Dehumidification operation≫
Next, the first operation during the dehumidifying operation will be described with reference to FIGS. 1 and 5A. In the first operation, an adsorption operation for the first adsorption element (81a) and a regeneration operation for the second adsorption element (81b) are performed. That is, in the first operation, air is dehumidified by the first adsorption element (81a), and at the same time, the adsorbent of the second adsorption element (81b) is regenerated.

  As shown in FIG. 1, in the right partition plate (20), the opening and closing shutters of the first lower right opening (24) and the second upper right opening (25) are in the open state, and the remaining openings (21, 22, 23, The open / close shutter of 26) is closed. In this state, the lower right channel (66) communicates with the first lower channel (54) by the first lower right opening (24), and the second upper channel (55) is communicated by the second upper right opening (25). And the upper right channel (65) communicate with each other.

  In the left partition plate (30), the open / close shutters of the first left opening (31) and the first upper left opening (33) are in the open state, and the open / close shutters of the remaining openings (32, 34, 35, 36) are in the closed state. It has become. In this state, the first left channel (31) communicates with the first channel (51) and the lower left channel (68), and the first upper channel (33) communicates with the first upper channel (53) and the upper left channel. The partial flow path (67) communicates.

  As shown in FIG. 5A, the first shutter 61 is closed and the second shutter 62 is open. In this state, the central flow path 57 and the second lower portion The flow path (56) is in communication.

  The first air that has flowed into the lower right channel (66) by the drive of the air supply fan (95) then flows into the first lower channel (54) through the first lower right opening (24). . On the other hand, the second air flowing into the lower left channel (68) by the drive of the exhaust fan (96) then flows into the first channel (51) through the first left opening (31).

 The first air in the first lower channel (54) flows into the humidity adjustment side passage (85) of the first adsorption element (81a). During the flow through the humidity adjustment side passageway (85), water vapor contained in the first air is adsorbed by the adsorbent. The first air dehumidified by the first adsorption element (81a) flows into the first upper flow path (53).

  On the other hand, the second air in the first flow path (51) flows into the cooling side passage (86) of the first adsorption element (81a). While flowing through the cooling side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity adjustment side passage (85). The second air deprived of heat of adsorption flows into the central passage (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) into the second lower channel (56).

  The second air heated by the first adsorption element (81a) and the regenerative heat exchanger (102) is introduced into the humidity adjusting side passageway (85) of the second adsorption element (81b). In the humidity adjusting side passageway (85), the adsorbent is heated by the second air, and water vapor is desorbed from the adsorbent. That is, the regeneration of the second adsorption element (81b) is performed. At this time, the second air is absorbed by regeneration of the adsorbent. The second air after regenerating the adsorbent flows into the second upper flow path (55).

  As shown in FIG. 1, the dehumidified first air that has flowed into the first upper channel (53) flows into the upper left channel (67) through the first upper left opening (33), and then It flows into the supply side flow path (42). The first air passes through the first heat exchanger (103a) while flowing through the supply side flow path (42), and is cooled by heat exchange with the refrigerant. Thereafter, the dehumidified and cooled first air is supplied into the room through the air supply port (14).

  On the other hand, the second air flowing into the second upper flow path (55) flows into the upper right flow path (65) through the second upper right opening (25), and then flows into the exhaust side flow path (41). Inflow. At this time, the heat radiation part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) provided in the exhaust side flow path (41) are cooled by the second air. Thereafter, the second air passes through the second heat exchanger (103b) while flowing through the exhaust side flow path (41). At that time, the second heat exchanger (103b) is at rest, and the second air is neither heated nor cooled. The second air used for cooling the first adsorbing element (81a), regenerating the second adsorbing element (81b), and cooling the drive circuit (130) is discharged to the outside through the exhaust port (16). Is done.

  Next, the second operation of the dehumidifying operation will be described with reference to FIG. 2 and FIG. In the second operation, contrary to the first operation, an adsorption operation for the second adsorption element (81b) and a regeneration operation for the first adsorption element (81a) are performed. That is, in the second operation, air is dehumidified by the second adsorption element (81b), and at the same time, the adsorbent of the first adsorption element (81a) is regenerated.

  As shown in FIG. 2, in the right partition plate (20), the open / close shutters of the first upper right opening (23) and the second lower right opening (26) are open, and the remaining openings (21, 22, 24, The open / close shutter of 25) is in a closed state. In this state, the first upper channel (53) and the upper right channel (65) communicate with each other through the first upper right opening (23), and the lower right channel (66) with the second lower right opening (26). The second lower channel (56) communicates with the second lower channel (56).

  In the left partition plate (30), the open / close shutters of the second left opening (32) and the second upper left opening (35) are open, and the open / close shutters of the remaining openings (31, 33, 34, 36) are closed. It has become. In this state, the lower left channel (68) and the second channel (52) communicate with each other through the second left opening (32), and the second upper channel (55) and the upper left channel through the second upper left opening (35). The partial flow path (67) communicates.

  Further, as shown in FIG. 5B, the second shutter (62) is in a closed state and the first shutter (61) is in an open state, and in this state, the central flow path (57) and the first lower portion are in the open state. The flow path (54) is in communication.

  The first air flowing into the lower right channel (66) by the drive of the air supply fan (95) then flows into the second lower channel (56) through the second lower right opening (26). . On the other hand, the second air that has flowed into the lower left channel (68) by the drive of the exhaust fan (96) then flows into the second channel (52) through the second left opening (32).

  The 1st air of the 2nd lower channel (56) flows into the humidity control side channel (85) of the 2nd adsorption element (81b). During the flow through the humidity adjustment side passageway (85), water vapor contained in the first air is adsorbed by the adsorbent. The first air dehumidified by the second adsorption element (81b) flows into the second upper flow path (55).

  On the other hand, the second air in the second flow path (52) flows into the cooling side passage (86) of the second adsorption element (81b). While flowing through the cooling side passage (86), the second air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity adjustment side passage (85). The second air deprived of heat of adsorption flows into the central passage (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) into the first lower channel (54).

  The second air heated by the second adsorption element (81b) and the regenerative heat exchanger (102) is introduced into the humidity adjustment side passageway (85) of the first adsorption element (81a). In the humidity adjusting side passageway (85), the adsorbent is heated by the second air, and water vapor is desorbed from the adsorbent. That is, the regeneration of the first adsorption element (81a) is performed. At this time, the second air is absorbed by regeneration of the adsorbent. The second air after regenerating the adsorbent flows into the second upper flow path (55). As shown in FIG. 2, the dehumidified first air flowing into the second upper channel (55) flows into the upper left channel (67) through the second upper left opening (35), and then It flows into the supply side flow path (42). The first air passes through the first heat exchanger (103a) while flowing through the supply side flow path (42), and is cooled by heat exchange with the refrigerant. Thereafter, the dehumidified and cooled first air is supplied into the room through the air supply port (14).

The second air flowing into the first upper flow path (53) flows into the upper right flow path (65) through the first upper right opening (23), and then flows into the exhaust side flow path (41). To do. At this time, the heat radiation part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) provided in the exhaust side flow path (41) are cooled by the second air. Thereafter, the second air passes through the second heat exchanger (103b) while flowing through the exhaust side flow path (41). At that time, the second heat exchanger (103b) is at rest, and the second air is neither heated nor cooled. The second air used for cooling the second adsorbing element (81b), regenerating the first adsorbing element (81a), and cooling the drive circuit (130) is discharged to the outside through the exhaust port (16). Is done.
The second air used for is discharged to the outside through the exhaust port (16).

≪Humidity operation≫
Next, the first operation during the humidifying operation will be described with reference to FIGS. 3 and 6A. In the first operation, an adsorption operation for the first adsorption element (81a) and a regeneration operation for the second adsorption element (81b) are performed. That is, in the first operation, air is humidified by the second adsorption element (81b), and the adsorbent of the first adsorption element (81a) adsorbs water vapor.

  As shown in FIG. 3, in the right partition plate (20), the open / close shutters of the first right opening (21) and the first upper right opening (23) are open, and the remaining openings (22, 24, 25, 26). The open / close shutter of) is closed. In this state, the lower right channel (66) and the first channel (51) communicate with each other through the first right opening (21), and the first upper channel (53) and the upper right channel through the first upper right opening (23). The partial flow path (65) is in communication.

  In the left partition plate (30), the open / close shutters of the first lower left opening (34) and the second upper left opening (35) are open, and the open / close shutters of the remaining openings (31, 32, 33, 36) are closed. It has become. In this state, the lower left channel (68) communicates with the first lower channel (54) by the first lower left opening (34), and the second upper channel (55) is communicated by the second upper left opening (35). The upper left channel (67) communicates.

  As shown in FIG. 6A, the first shutter 61 is closed and the second shutter 62 is open. In this state, the central flow path 57 and the second lower portion The flow path (56) is in communication.

  The first air that has flowed into the lower right channel (66) by the drive of the air supply fan (95) then flows into the first channel (51) through the first right opening (21). On the other hand, when the exhaust fan (96) is driven, the second air flowing into the lower left channel (68) passes through the first lower left opening (34) and then flows into the first lower channel (54). . The second air in the first lower flow path (54) flows into the humidity adjustment side passageway (85) of the first adsorption element (81a). During the flow through the humidity adjusting side passageway (85), water vapor contained in the second air is adsorbed by the adsorbent. The second air deprived of moisture by the first adsorption element (81a) flows into the first upper flow path (53).

  On the other hand, the first air in the first flow path (51) flows into the cooling side passage (86) of the first adsorption element (81a). While flowing through the cooling side passage (86), the first air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity adjustment side passage (85). The first air deprived of heat of adsorption flows into the central passage (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the first air is heated by heat exchange with the refrigerant. Thereafter, the first air flows from the central channel (57) into the second lower channel (56).

  The first air heated by the first adsorption element (81a) and the regenerative heat exchanger (102) is introduced into the humidity adjusting side passageway (85) of the second adsorption element (81b). In the humidity adjusting side passageway (85), the adsorbent is heated by the first air, and water vapor is desorbed from the adsorbent. That is, the regeneration of the second adsorption element (81b) is performed. Water vapor desorbed from the adsorbent is applied to the first air, and the first air is humidified. The first air humidified by the second adsorption element (81b) then flows into the second upper flow path (55).

  As shown in FIG. 3, the first air that has flowed into the second upper flow path (55) flows into the upper left flow path (67) through the second upper left opening (35), and then the air supply side flow It flows into the road (42). The first air passes through the first heat exchanger (103a) while flowing through the supply side flow path (42). At that time, the first heat exchanger (103a) is at rest, and the first air is neither heated nor cooled. The humidified first air is supplied to the room through the air supply port (14).

  On the other hand, the second air flowing into the first upper flow path (53) flows into the upper right flow path (65) through the first upper right opening (23), and then flows into the exhaust side flow path (41). Inflow. At this time, the heat radiation part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) provided in the exhaust side flow path (41) are cooled by the second air. Thereafter, the second air passes through the second heat exchanger (103b) while flowing through the exhaust side flow path (41), and is cooled by heat exchange with the refrigerant. The second air deprived of moisture and heat is discharged to the outside through the exhaust port (16).

  Next, the second operation of the humidifying operation will be described with reference to FIGS. 4 and 6B. In the second operation, contrary to the first operation, the adsorption operation for the second adsorption element (81b) and the regeneration operation for the first adsorption element (81a) are performed. That is, in the second operation, air is humidified by the first adsorption element (81a), and the adsorbent of the second adsorption element (81b) adsorbs water vapor.

  As shown in FIG. 4, in the right partition plate (20), the open / close shutters of the second right opening (22) and the second upper right opening (25) are open, and the remaining openings (21, 23, 24, 26). The open / close shutter of) is closed. In this state, the lower right channel (66) and the second channel (52) communicate with each other through the second right opening (22), and the second upper channel (55) at the upper right part through the second upper right opening (25). The flow path (65) is communicated.

  In the left partition plate (30), the open / close shutters of the first upper left opening (33) and the second lower left opening (36) are open, and the open / close shutters of the remaining openings (31, 32, 34, 35) are closed. It has become. In this state, the first upper channel (53) and the upper left channel (67) communicate with each other through the first upper left opening (33), and the lower left channel (68) and the first upper channel (67) communicate with each other through the second lower left opening (36). 2 The lower channel (56) communicates.

  Further, as shown in FIG. 6B, the second shutter (62) is in a closed state and the first shutter (61) is in an open state. In this state, the central flow path (57) and the first lower portion are in the closed state. The flow path (54) is in communication.

  The first air that has flowed into the lower right channel (66) by driving the air supply fan (95) then flows into the second channel (52) through the second right opening (22). On the other hand, the second air that has flowed into the lower left channel (68) by driving the exhaust fan (96) then flows into the second lower channel (56) through the second lower left opening (36). . The second air in the second lower flow path (56) flows into the humidity adjustment side passageway (85) of the second adsorption element (81b). During the flow through the humidity adjusting side passageway (85), water vapor contained in the second air is adsorbed by the adsorbent. The second air deprived of moisture by the second adsorption element (81b) flows into the second upper flow path (55).

  On the other hand, the first air in the second flow path (52) flows into the cooling side passage (86) of the second adsorption element (81b). While flowing through the cooling side passage (86), the first air absorbs heat of adsorption generated when water vapor is adsorbed by the adsorbent in the humidity adjustment side passage (85). The first air deprived of heat of adsorption flows into the central passage (57) and passes through the regenerative heat exchanger (102). At that time, in the regenerative heat exchanger (102), the second air is heated by heat exchange with the refrigerant. Thereafter, the second air flows from the central channel (57) into the first lower channel (54).

  The first air heated by the second adsorption element (81b) and the regenerative heat exchanger (102) is introduced into the humidity adjustment side passageway (85) of the first adsorption element (81a). In the humidity adjusting side passageway (85), the adsorbent is heated by the first air, and water vapor is desorbed from the adsorbent. That is, the regeneration of the first adsorption element (81a) is performed. Then, water vapor desorbed from the adsorbent is applied to the first air, and the first air is humidified. The first air humidified by the first adsorption element (81a) then flows into the first upper flow path (53).

  As shown in FIG. 4, the first air that has flowed into the first upper flow path (53) flows into the upper left flow path (67) through the first upper left opening (33), and then the air supply side flow It flows into the road (42). The first air passes through the first heat exchanger (103a) while flowing through the supply side flow path (42). At that time, the first heat exchanger (103a) is at rest, and the first air is neither heated nor cooled. The humidified first air is supplied to the room through the air supply port (14).

  On the other hand, the second air flowing into the second upper flow path (55) flows into the upper right flow path (65) through the second upper right opening (25), and then flows into the exhaust side flow path (41). Inflow. At this time, the heat radiation part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) provided in the exhaust side flow path (41) are cooled by the second air. Thereafter, the second air passes through the second heat exchanger (103b) while flowing through the exhaust side flow path (41), and is cooled by heat exchange with the refrigerant. The second air deprived of moisture and heat is discharged to the outside through the exhaust port (16).

-Effect of Embodiment 1-
According to the first embodiment, the following effects are exhibited.

  In the first embodiment, the first inverter (130a), which is a part of the drive circuit (130) of the compressor (101), and the part of the drive circuit (130) of the supply / exhaust fan (95, 96). A heat dissipating part (171) of a certain second inverter (130b) is arranged in the exhaust side flow path (41). The heat radiating portion (171) of the first and second inverters (130a, 130b) is cooled by the second air flowing through the exhaust side flow path (41).

  At this time, if the flow rate of the second air flowing through the exhaust side flow path (41) is set to a predetermined value or more, the heat radiation part (171) of the first and second inverters (130a, 130b) can be sufficiently cooled. The heat generation of the first and second inverters (130a, 130b) can be effectively suppressed.

  The second air becomes air after the adsorbent of the first adsorption element (81a) or the second adsorption element (81b) is regenerated during a dehumidifying operation such as in summer. Therefore, the second air is absorbed by regeneration of the adsorbent, and has a lower temperature than the heat radiating portion (171) of the first and second inverters (130a, 130b). For this reason, the cooling effect of the heat radiating part (171) of the first and second inverters (130a, 130b) can be enhanced.

  Further, the second air becomes air after moisture is adsorbed by the adsorbent of the first adsorbing element (81a) or the second adsorbing element (81b) during a humidifying operation such as in winter. Therefore, the second air is dehumidified and has a low humidity. For this reason, when the heat radiating portion (171) of the first and second inverters (130a, 130b) is cooled with the second air, it is possible to prevent the vicinity of the inverter (130) from becoming wet due to condensation.

  In the first embodiment, the cooling fins (131) are provided in the heat dissipating part (171) of the first and second inverters (130a, 130b). Therefore, when heat is generated in the first and second inverters (130a, 130b) during operation of the compressor (101) and the air supply / exhaust fans (95, 96), this heat is cooled by the cooling fins (131 ). For this reason, since the contact area (heat transfer area) between the heat radiating part (171) and the second air is increased, the heat generated from the first and second inverters (130a, 130b) can be more effectively cooled. Can do.

<Embodiment 2 of the Invention>
In the first embodiment of the present invention, the first inverter (130a), the second inverter (130b), and the cooling fin (131) are provided in the exhaust side flow path (41) in the casing (10) of the humidity control apparatus. However, in addition to this configuration, the first inverter (130a), the second inverter (130b), and the cooling fin (131) may be provided in the electrical component box (150).

  This configuration will be described in detail as Embodiment 2 of the present invention with reference to FIG.

  The electrical component box (150) can be freely installed at a position adjacent to the outside of the casing (10). However, in the second embodiment, on the outer right side of the casing (10), the exhaust side It is installed at a position adjacent to the channel (41).

  The electrical component box (150) has an electrical component casing (151) having a rectangular parallelepiped shape. The electrical component casing (151) includes first and second inverters (130a, 130b), and cooling fins (131) provided in a heat radiation portion (171) of the first and second inverters (130a, 130b). The cooling fan (152) is provided with a blower fan (152) that is a cooling blower means (152).

  The first and second inverters (130a, 130b) are fixed in parallel in a horizontal direction on a printed circuit board (132) attached to the inner left surface of the electrical component casing (151). In addition, cooling fins (131) are formed on the surface of the heat radiation part (171) of the first and second inverters (130a, 130b) so as to straddle both the first inverter (130a) and the second inverter (130b). Is provided. The cooling fin (131) includes a plate-like fin substrate (131a) and a plurality of cooling plates (131b) provided in a vertical direction from the fin substrate (131a). The fin substrate (131a) is installed on the surface of the heat radiating part (171) of the first and second inverters (130a, 130b). The cooling plate (131b) is formed to extend rightward from the fin substrate (131a) toward the center of the electrical component casing (151).

  Further, between the first and second inverters (130a, 130b) and the fin substrate (131a) of the cooling fin (131), the cooling fin (131) is mounted and the first and second inverters (130a, 130b) are installed. A sealing member (135) for the purpose of sealing is provided.

  On the inner lower surface of the electrical component casing (151), a heat radiating section (171) of the first and second inverters (130a, 130b) and a blower fan (152) for cooling the cooling fin (131) are provided. A cooling box (153) through which the blown air of the blower fan (152) flows is installed. The cooling box (153) includes a quadrangular prism-shaped fan casing (153a) having a substantially square surface and a cooling passage casing (153b). The fan casing (153a) and the cooling passage casing (153b) are connected to each other. The cooling box (153) is arranged so that the substantially square surface of the fan casing (153a) and the front surface of the electrical component casing (151) are flush with each other.

  A blower fan (152) is installed in the blower fan casing (153a). A circular cooling box second opening (155) is formed in the front surface of the blower fan casing (153a). On the other hand, a cooling box first opening (154) is formed on the rear surface of the cooling passage casing (153b). Further, a rectangular fin opening (157) into which the cooling fin (131) can be inserted is formed on the left surface of the cooling passage casing (153b). And the cooling fin (131) provided in the heat radiating part (171) of the first and second inverters (130a, 130b) protrudes from the fin opening (157) and extends into the cooling passage casing (153b). ing.

  In addition, an electrical component casing first opening (158) for introducing external air of the electrical component casing (151) sucked by the blower fan (152) is formed on the right surface of the electrical component casing (151). . On the other hand, on the front side of the electrical component casing (151), adjacent to the blower fan (152), an electrical component casing second opening (159) for discharging the external air introduced by the blower fan (152) is formed. Has been.

  With the above configuration, when the blower fan (152) is started, external air is introduced from the electrical component casing first opening (158) and flows into the cooling passage casing (153b) from the cooling box first opening (154). To do. Thereafter, the external air is in ventilation contact with the cooling fins (131) extending into the cooling passage casing (153b) from the heat radiation portion (171) of the first and second inverters (130a, 130b), and the cooling box second opening ( 155) and the electrical component casing second opening (159), and is discharged to the outside.

  Further, on the inner lower surface of the electrical component casing (151), on the rear side of the cooling box (153), a reactor (transformer circuit for driving power source of the compressor (101) and the supply / exhaust fans (95, 96)) ( 160) is installed.

-Effect of Embodiment 2-
According to the second embodiment, the following effects are exhibited.

  In the second embodiment, a first inverter (130a) that is a drive circuit (130) of the compressor (101) and a second inverter (130b) that is a drive circuit (130) of the supply / exhaust fan (95, 96). ) And the heat dissipating part (171) are arranged in the electrical component casing (151). Then, the heat radiating portion (171) of the first and second inverters (130a, 130b) is cooled by the blown air of the blower fan (cooling blower means) (152) provided in the electrical component casing (151). Yes. In this configuration, since the blown air sucked by the blower fan (152) is outside air of the electrical component casing (151), the temperature of the blown air is radiated from the first and second inverters (130a, 130b). The temperature is lower than that of the part (171). For this reason, the first and second inverters (130a, 130b) can be effectively cooled.

  In the second embodiment, the reactor (160) is arranged on the inner lower surface of the electrical component casing (151). The blown air from the blower fan (152) is in ventilation contact with the heat radiating section (171) of the reactor (160). With this configuration, the air blown from the blower fan (152) is used to cool the heat dissipating part (171) of the reactor (160) in addition to the heat dissipating part (171) of the first and second inverters (130a, 130b). be able to.

<Other Embodiments of Invention>
The present invention may be configured as follows with respect to the above embodiment.

  In the first embodiment, the first and second inverters (130a, 130b) and the cooling fin (131) are provided in the exhaust-side flow path (41) in the casing (10), and the first and second inverters (130a, 130a, 130) are provided. The heat radiating part (171) and the cooling fin (131) of 130b) are cooled by the second air after passing through the first adsorption element (81a) or the second adsorption element (81b). However, for example, the first and second inverters (130a, 130b) and the cooling fin (131) can be configured in various arrangement patterns in the first air passage or the second air passage.

  The arrangement pattern of the first and second inverters (130a, 130b) and the cooling fin (131) will be described in detail with reference to the drawings.

≪Other arrangement pattern 1≫
FIG. 10 shows that the first and second inverters (130a, 130b) and the cooling fin (131) are provided in the air supply side flow path (42) in the casing (10), and the first and second inverters (130a, 130b) are provided. ) And the cooling fin (131) are cooled by the first air after passing through the first adsorption element (81a) or the second adsorption element (81b). In this case, the first air flowing through the air supply side flow path (42) is adsorbed by the adsorbent of the first adsorbing element (81a) or the second adsorbing element (81b) during dehumidifying operation such as summer. It becomes air after being done. Therefore, the first air is dehumidified and has a low humidity. For this reason, when the heat radiating portion (171) of the first and second inverters (130a, 130b) is cooled with the first air, it is possible to prevent the vicinity of the drive circuit (130) from becoming wet due to condensation.

  On the other hand, the first air becomes air after regenerating the adsorbent of the first adsorbing element (81a) or the second adsorbing element (81b) during a humidifying operation such as in winter. Therefore, the first air is absorbed by regeneration of the adsorbent, and the temperature is lower than that of the heat radiating portion (171) of the first and second inverters (130a, 130b). For this reason, the cooling effect of the heat radiating part (171) of the first and second inverters (130a, 130b) can be enhanced.

≪Other arrangement pattern 2≫
FIG. 11A shows that the first and second inverters (130a, 130b) and the cooling fin (131) are arranged on the right side of the first heat exchanger (103a) in the air supply side passage (42) in the casing (10). And the first and second inverters (130a, 130b) are configured to cool the heat radiation part (171) and the cooling fin (131) with the first air after passing through the first heat exchanger (103a). It is a thing. In this case, during the dehumidifying operation, the first air flowing through the air supply side flow path (42) is cooled by the first heat exchanger (103a) and is in a low temperature state. For this reason, the cooling effect of the heat radiating part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) can be enhanced.

≪Other arrangement pattern 3≫
FIG. 11 (B) shows the first and second inverters (130a, 130b) and the cooling fin (131) on the left side of the second heat exchanger (103b) of the exhaust side passage (41) in the casing (10). Provided and configured to cool the heat radiation part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) with the second air after passing through the second heat exchanger (103b). It is a thing. In this case, during the humidification operation, the second air flowing through the exhaust-side flow path (42) is cooled by the second heat exchanger (103b) and is in a low temperature state. For this reason, the cooling effect of the heat radiating part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) can be enhanced.

≪Other arrangement pattern 4≫
In FIG. 12A, the first and second inverters (130a, 130b) and the cooling fin (131) are provided on the back side of the lower left channel (68), and the first and second inverters (130a, 130b) are provided. The heat radiation part (171) and the cooling fin (131) are cooled by the first air before passing through the first adsorption element (81a) or the second adsorption element (81b). In this case, the first air flowing through the lower left channel (68) is indoor air that is not conditioned. Therefore, the first air has a lower temperature than the heat radiating portion (171) of the first and second inverters (130a, 130b). For this reason, the heat radiating part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) can be sufficiently cooled.

≪Other arrangement pattern 5≫
In FIG. 12B, the first and second inverters (130a, 130b) and the cooling fin (131) are provided on the back side of the lower right channel (66), and the first and second inverters (130a, 130b) are provided. ) And the cooling fin 131 are cooled by the second air before passing through the first adsorption element 81a or the second adsorption element 81b. In this case, the 2nd air which distribute | circulates a lower right flow path (66) turns into outdoor air which is not humidity-controlled. Therefore, the temperature of the second air is lower than that of the heat radiating portion (171) of the first and second inverters (130a, 130b). For this reason, the heat radiating part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) can be sufficiently cooled.

  Further, for example, when a relatively long duct for introducing outdoor air is provided in the outdoor suction port (15), the second air is radiated when flowing through the duct. Therefore, the temperature of the second air is lower than that of the heat radiating portion (171) of the first and second inverters (130a, 130b). For this reason, the heat radiating part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) can be cooled more effectively.

  The first and second inverters (130a, 130b) and the cooling fins (131) in the first embodiment and the other embodiments described above are attached to the inner side surface of the casing (10). The first and second inverters (130a, 130b) and the cooling fin (131) may be attached to the inner upper surface of the casing (10). In this case, the heat dissipating part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) extend downward from the inner upper surface of the casing (10) as shown in FIG. It arrange | positions in a predetermined | prescribed air passage.

  In the second embodiment, when the blower fan (152) of the cooling box (153) is started, external air is sucked from the electrical component casing first opening (158), the cooling box first opening (154), and the cooling box second opening. (155) is circulated and then discharged from the electrical component casing second opening (159). However, in addition to the above configuration, for example, as shown in FIG. 14A, by reversing the suction direction of the blower fan (152), the indoor air is sucked from the electrical component casing second opening (159), It is good also as a structure discharged | emitted from the electrical component casing 1st opening (158) through a cooling box 2nd opening (155) and a cooling box 1st opening (154).

  Further, in the second embodiment, the first and second openings (158, 159) of the blower fan (152) and the electrical component casing (151) are formed in the electrical component casing (151) as shown in FIGS. ) Can be placed freely within.

  Further, in the second embodiment, the cooling box (153) in the electrical component casing (151) includes an internal space of the electrical component casing (151) and an internal space of the cooling box (153) (cooling passage (172)). It can also be configured to be partitioned. In this case, the cooling box (153) is formed so that the front and rear surfaces of the cooling box (153) are flush with the front and rear surfaces of the electrical goods casing (151), as shown in FIG. Be placed. A blower fan (152) is provided on the front surface of the electrical component casing (151). In this configuration, the external air sucked by the blower fan (152) flows only through the cooling passage (172) in the cooling box (153). Therefore, the heat radiation part (171) and the cooling fin (131) of the first and second inverters (130a, 130b) can be more reliably cooled by the external air. Further, since the external air flows only through the cooling passage (172) of the cooling box (153), for example, other driving circuit components are arranged in the space outside the cooling box (153) in the electrical component casing (151). In this case, it is possible to prevent the dust introduced by the external air from adhering to the drive circuit components arranged in this space.

  Further, as a modification of the cooling box (153) shown in FIG. 15 (A), as shown in FIG. 15 (B), the blower fan (153) is positioned near the center of the inner left surface in the cooling box (153). The external air sucked from this position can be discharged from both the front and rear sides of the cooling box (153). In this case, the external air introduced by the blower fan (153) circulates in two front and rear directions. Therefore, the cooling passage (external air circulates behind the cooling box (153) from the cooling fan (153) ( 172), for example, by disposing the reactor (160) or the like, the heat radiating portions of the drive circuit components other than the first and second inverters (130a, 130b) can be simultaneously and efficiently cooled.

It is a schematic block diagram which shows the structure of the humidity control apparatus which concerns on Embodiment 1, and the flow of the air in 1st operation | movement at the time of a dehumidification driving | operation, FIG. 1 (A), FIG. 1 (B), FIG. The top view, left side view, and right side view of the humidity control apparatus are shown. It is a schematic block diagram which shows the flow of the air in the structure of the humidity control apparatus which concerns on Embodiment 1, and the 2nd operation | movement at the time of a dehumidification driving | operation, FIG. 2 (A), FIG. 2 (B), FIG. The top view, left side view, and right side view of the humidity control apparatus are shown. It is a schematic block diagram which shows the flow of the air in the structure of the humidity control apparatus which concerns on Embodiment 1, and the 1st operation | movement at the time of a humidification driving | operation, FIG. 3 (A), FIG. 3 (B), FIG. The top view, left side view, and right side view of the humidity control apparatus are shown. It is a schematic block diagram which shows the flow of the air in the structure of the humidity control apparatus which concerns on Embodiment 1, and the 2nd operation | movement at the time of a humidification driving | operation, FIG. 4 (A), FIG. 4 (B), FIG. The top view, left side view, and right side view of the humidity control apparatus are shown. It is a principal part enlarged view at the time of the dehumidification driving | operation of the humidity control apparatus which concerns on Embodiment 1. FIG. It is a principal part enlarged view at the time of the dehumidification driving | operation of the humidity control apparatus which concerns on Embodiment 1. FIG. It is a schematic perspective view which shows the structure of the adsorption | suction element of the humidity control apparatus which concerns on Embodiment 1. FIG. FIG. 3 is an enlarged perspective view of a main part in the vicinity of a drive circuit of the humidity control apparatus according to the first embodiment. It is a schematic perspective view of the electrical component box of the humidity control apparatus according to the second embodiment. It is a top view which shows the other arrangement pattern 1 of a drive circuit and a cooling fin. FIGS. 11A and 11B are top views showing the other arrangement pattern 2 and the other arrangement pattern 3 of the drive circuit and the cooling fin, respectively. 12A and 12B are top views showing other arrangement patterns 4 and other arrangement patterns 5 of the drive circuit and the cooling fin, respectively. It is a top view which shows the other example of installation of a drive circuit and a cooling fin. 14A, 14B, and 14C are schematic perspective views illustrating modifications of the electrical component box according to the second embodiment. FIGS. 15A and 15B are schematic perspective views illustrating modifications of the electrical component box according to the second embodiment.

Explanation of symbols

(10) Casing
(41) Exhaust side flow path
(42) Supply side flow path
(81) Adsorption element
(95) Air supply fan
(96) Exhaust fan
(103) Heat exchanger
(130) Drive circuit
(130a) First inverter
(130b) Second inverter
(131) Cooling fin
(150) Electrical component box
(151) Electrical component casing
(152) Blower fan
(153) Cooling box
(160) Reactor
(171) Heat sink
(172) Cooling passage

Claims (10)

In the casing (10),
A first air passage in which first air blowing means (95) for supplying the first air to the room is disposed;
A second air passage in which second air blowing means (96) for discharging the second air to the outside is disposed;
An adsorbing element (81) for humidifying or dehumidifying one or both of the first air and the second air;
A refrigerant circuit for heating or cooling one or both of the first air and the second air;
A humidity control device comprising a driving circuit (130) for controlling one or both of the air blowing means (95, 96) and the refrigerant circuit,
A humidity control apparatus, wherein a part of the drive circuit (130) is disposed in the first air passage or the second air passage as a heat radiating portion (171). The humidity control apparatus according to claim 1,
The heat radiating unit (171) of the drive circuit (130) is disposed in a second air passage through which the second air after being conditioned by the adsorption element (81) flows. . The humidity control apparatus according to claim 1,
The heat radiating section (171) of the drive circuit (130) is disposed in a first air passage through which the first air after being conditioned by the adsorption element (81) flows. . The humidity control apparatus according to claim 1,
The refrigerant circuit includes a heat exchanger (103) for cooling the first air after being dehumidified by the adsorption element (81),
The humidity control apparatus, wherein the heat radiating section (171) of the drive circuit (130) is disposed in a first air passage through which the first air after passing through the heat exchanger (103) flows. The humidity control apparatus according to claim 1,
The refrigerant circuit includes a heat exchanger (103) for cooling the second air after being dehumidified by the adsorption element (81),
The humidity control apparatus, wherein the heat radiating section (171) of the drive circuit (130) is disposed in a second air passage through which the second air after passing through the heat exchanger (103) flows. The humidity control apparatus according to claim 1,
The heat radiating section (171) of the drive circuit (130) is disposed in a first air passage through which the first air before being conditioned by the adsorption element (81) flows. . The humidity control apparatus according to claim 1,
The heat-radiating part (171) of the drive circuit (130) is disposed in a second air passage through which the second air before being conditioned by the adsorption element (81) flows. . In the casing,
A first air passage in which first air blowing means (95) for supplying the first air to the room is disposed;
A second air passage in which second air blowing means (96) for discharging the second air to the outside is disposed;
An adsorbing element (81) for humidifying or dehumidifying one or both of the first air and the second air;
A refrigerant circuit for heating or cooling one or both of the first air and the second air;
A humidity control device comprising a driving circuit (130) for controlling one or both of the air blowing means (95, 96) and the refrigerant circuit,
In the electrical component casing (151) that houses the drive circuit (130), cooling air blowing means (152) is provided,
A humidity control apparatus, wherein a part of the drive circuit (130) is arranged as a heat radiating section (171) in a flow path of the blown air of the cooling air blowing means (152). The humidity control apparatus according to claim 8,
In the electrical component casing (151), a cooling passage (172) through which blown air flows is partitioned,
A humidity control apparatus, wherein a part of the drive circuit (130) is disposed in the cooling passage (172) as a heat radiating part (171). In the humidity control apparatus of any one of Claims 1-9,
A humidity control apparatus, wherein the heat dissipating part (171) of the drive circuit (130) is provided with cooling fins (131).

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