WO2008059774A1

WO2008059774A1 - Humidity conditioning unit

Info

Publication number: WO2008059774A1
Application number: PCT/JP2007/071877
Authority: WO
Inventors: Tomohiro Yabu
Original assignee: Daikin Industries, Ltd.
Priority date: 2006-11-14
Filing date: 2007-11-12
Publication date: 2008-05-22
Also published as: JP2008122017A; JP4135025B2

Abstract

A non-water supply humidification unit employing a humidity conditioning rotor is made compact. The humidity conditioning unit (6) comprises a humidity conditioning rotor (61) which can adsorb/desorb moisture in the air, a casing, a heater (64), and an air supply fan (65). An air channel having a moisture absorption channel passing the humidity conditioning rotor (61), and a humidification channel passing the humidity conditioning rotor separately from the moisture absorption channel is formed in the casing. The heater (64) is provided on the upstream side of the humidity conditioning rotor (61) in the humidification channel and heats the air flowing through the humidification channel. The air supply fan (65) is arranged in the casing and rotary driven by a fan motor (92) to feed air into the air channel. The fan motor (92) additionally rotary drives the humidity conditioning rotor (61).

Description

Specification

Humidity control unit

Technical field

TECHNICAL FIELD [0001] The present invention relates to a humidity control unit, and more particularly to a humidity control unit that is installed outside a room and supplies air conditioned through a duct or the like to the room.

Background art

[0002] Conventionally, as one of humidity control units, a non-water supply humidification unit using an adsorbent is known. Such a humidification unit mainly includes a humidity control rotor including an adsorbent, a moisture absorption fan, a humidification fan, and a heater. The humidity control rotor rotates so that its disk-shaped surface sequentially passes through the moisture absorption (adsorption) flow path and the humidification (regeneration) passage. A moisture absorption fan is disposed in the moisture absorption channel, and a humidification fan and a heater are disposed in the humidification channel (see, for example, Patent Documents 1 and 2).

When a part of the disk-shaped surface of the humidity control rotor passes through the moisture absorption flow path, moisture absorption air is supplied to the adsorbent by the moisture absorption fan, and the moisture contained in the moisture absorption air is adsorbed by the adsorbent. Is done. On the other hand, when a part of the disk-shaped surface of the humidity control rotor passes through the humidification flow path, the humidifying air heated by the heater is supplied to the adsorbent by the humidifying fan, and the adsorbent becomes the humidifying air. Moisture is desorbed from the adsorbent by being heated by heat. As a result, humidified air is generated by adding moisture desorbed from the adsorbent to the humidifying air. Humidified air is supplied indoors through a duct or the like.

Patent Document 1: Japanese Patent No. 3438672

Patent Document 2: Publication No. 2002-98365

Disclosure of the invention

[0003] Since the above-mentioned humidifying unit is assumed to be mounted on an outdoor unit that constitutes a separate type air conditioner, the vertical size may be a problem. Is not a problem because it only needs to fit the outdoor unit's plane size.

However, it should be installed near each room so that humid air can be supplied to multiple rooms. If it is installed on the wall of a building so that the amount of condensation inside the duct can be reduced by shortening the duct, etc., it will be necessary to make it more compact and mount it on the outdoor unit If the configuration of the humidifying unit is used as it is, it cannot be made compact.

An object of the present invention is to realize a compact unhumidified humidifying unit using a humidity control rotor.

[0004] A humidity control unit that is powerful in the first invention includes a humidity control rotor capable of absorbing and desorbing moisture in the air, a casing, a heating mechanism, and a blower fan. Inside the casing, there is formed an air flow path having a moisture absorption path that passes through the humidity control rotor and a humidification path that passes through the humidity control rotor separately from the moisture absorption path. The heating mechanism is provided on the upstream side of the humidity control rotor in the humidification channel, and heats the air flowing through the humidification channel. The blower fan is disposed in the casing and is driven to rotate by a fan motor to flow air into the air flow path. The fan motor further rotates the humidity control rotor.

This humidity control unit eliminates the need for a motor dedicated to driving the humidity control rotor, so the unit can be made compact.

[0005] The humidity control unit that provides power to the second invention is the humidity control unit that provides power to the first invention, wherein the fan motor is disposed so as to be sandwiched between the blower fan and the humidity control rotor. The rotating shaft extends toward both the blower fan side and the humidity control rotor side!

In this humidity control unit, the rotation axis of the fan motor can be shortened as much as possible, which contributes to a reduction in the size of the unit rotation axis.

[0006] The humidity control unit according to the third aspect of the invention is the humidity control unit according to the second aspect of the invention. In the humidity control unit, the rotation axis of the fan motor is controlled via a speed reduction mechanism that reduces the rotation of the fan motor. Connected to the rotor.

In this humidity control unit, the rotation of the fan motor can be reduced to match the rotation of the humidity control rotor.

[0007] The humidity control unit according to the fourth aspect of the present invention is the power control unit according to the third aspect of the invention, and the speed reduction mechanism can decelerate the rotation of the fan motor in multiple stages.

In this humidity control unit, the rotation ratio between the rotation of the fan motor and the rotation of the humidity control rotor is multistage. Since it can be changed to different floors, the humidity control capacity of the unit can be changed in multiple stages.

[0008] The humidity control unit according to the fifth invention is the humidity control unit according to the third or fourth invention, wherein the rotation center of the humidity control rotor is substantially concentric with the rotation axis of the fan motor. .

In this humidity control unit, the humidity control rotor and the blower fan are arranged side by side in the direction of the rotation axis, which can contribute to downsizing the unit in the direction perpendicular to the rotation axis.

[0009] The humidity control unit according to the sixth aspect of the invention is the humidity control unit according to the fifth aspect of the invention, wherein the deceleration mechanism has a plurality of gears for decelerating the rotation of the fan motor. Yes. The humidity control rotor is a substantially ring-shaped member, and the inner periphery of the humidity control unit is an annular door constituting one of a plurality of gears. In this humidity control unit, the driven gear is not the outer periphery of the humidity control rotor but the inner periphery. Therefore, when the speed reduction mechanism is viewed from the rotation axis direction of the fan motor, the speed reduction mechanism is arranged so as not to overlap the humidity control rotor as much as possible. It is easy to secure a flow path through the wet mouth.

[0010] The humidity control unit according to the seventh invention is the humidity control unit according to any one of the first to sixth inventions, wherein the fan motor is disposed upstream of the heating mechanism in the humidification flow path. Has been

Yes

In this humidity control unit, the air flowing through the humidification flow path can be heated by the waste heat of the fan motor, so that the desorption of moisture from the humidity control rotor can be promoted.

[0011] The humidity control unit according to the eighth invention is the humidity control unit according to any one of the first to seventh inventions, wherein the heating mechanism is a refrigerant circulating in the vapor compression refrigerant circuit. Includes flowing heat exchanger.

In this humidity control unit, for example, when the air conditioning apparatus is provided with the air conditioner, the heat of the refrigerant circulating in the refrigerant circuit can be used effectively, so that the power consumption used in the unit can be suppressed. .

[0012] The humidity control unit according to the ninth invention is the humidity control unit according to any one of the first to eighth inventions, wherein the air that has passed through the humidification channel is supplied into the room and the moisture absorption channel. Humidification operation switching state that exhausts air that has passed through the room and air that has passed through the moisture absorption channel And a dehumidifying / humidifying switching mechanism capable of switching between a dehumidifying operation switching state in which air that has passed through the humidifying flow path is discharged to the outside.

In this humidity control unit, it is possible to switch between the humidifying operation and the dehumidifying operation.

[0013] The humidity control unit according to the tenth aspect of the invention is the humidity control unit according to any of the first to ninth aspects of the invention. In the humidity control unit, the casing is supplied with humidity control air that has passed through the humidity control rotor. A humidity control air outlet pipe is provided to supply the room. The humidity control air outlet pipe is inclined at least 1 degree with respect to the horizontal direction so as to have a downward slope toward the casing.

In this humidity control unit, when condensation occurs in the humidity control air outlet pipe, it is possible to return the condensed water to the inside of the casing. Therefore, it is possible to prevent the condensation water from accumulating in the humidity control air outlet pipe. .

[0014] The humidity control unit according to the eleventh aspect of the present invention is the same as the tenth aspect of the invention, and the drainage hole is formed in the casing.

In this humidity control unit, the condensed water accumulated in the casing can be discharged quickly, so the force S that discharges the condensed water generated in the humidity control air outlet pipe through the casing can be reduced.

[0015] The humidity control unit according to the twelfth aspect of the present invention is the humidity control unit according to any of the first to eleventh aspects of the invention. In the humidity control unit, the blower fan is an impeller rotated by a fan motor;ファン It has a fan casing that houses the root car. The fan casing has a fan inlet facing one of the impellers in the rotational axis direction, a humidifying fan outlet communicating with the humidifying passage, and a moisture absorbing fan outlet communicating with the moisture absorbing passage! /

In this humidity control unit, the humidification fan and the moisture absorption fan in the conventional humidity control unit are combined, and only one fan and fan motor are required. This contributes to the compactness of the unit.

Brief Description of Drawings

FIG. 1 is an external view of an air conditioner employing a humidity control unit according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of an air conditioner.

FIG. 3 is an external perspective view of a humidity control unit. FIG. 4 is an exploded perspective view of the humidity control unit.

FIG. 5 is a front view of the humidity control unit.

FIG. 6 is a cross-sectional view taken along the line I I in FIG.

FIG. 7 is a sectional view taken along line II-II in FIG.

FIG. 8 is a sectional view taken along line III-III in FIG.

FIG. 9 is a sectional view taken along line IV-IV in FIG.

FIG. 10 is a cross-sectional view taken along the line V-V in FIG.

FIG. 11 is a cross-sectional view taken along VI—VI O I in FIG.

FIG. 12 is a view showing a humidity control unit according to Modification 2 and corresponding to FIG.

FIG. 13 is a perspective view showing the upper left part of the fan casing of the humidity control unit according to Modification 2.

FIG. 14 is a view showing an air conditioner according to Modification 3 and corresponding to FIG.

FIG. 15 is a view showing an air conditioner according to Modification 3 and corresponding to FIG.

FIG. 16 is a diagram showing an air conditioner according to Modification 3 and corresponding to FIG.

FIG. 17 is a view showing an air conditioner according to Modification 4 and corresponding to FIG.

FIG. 18 is a view showing a humidity control unit according to Modification 4 and corresponding to FIG.

FIG. 19 is a view showing a humidity control unit according to Modification 4 and corresponding to the vicinity of the casing body of FIG.

FIG. 20 is a view showing a humidity control unit according to Modification 4 and corresponding to FIG.

FIG. 21 is a cross-sectional view taken along the line VII-VII in FIG. 21, showing only the downstream portion of the blower fan.

FIG. 22 is a view showing an operation during a humidifying operation according to Modification 4 and corresponding to FIG. 21.

FIG. 23 is a diagram showing an operation during a dehumidifying operation according to Modification 4 and corresponding to FIG. 21.

Explanation of symbols

6 Humidity control unit 9 Air supply pipe (Humidity control air outlet pipe)

10 Refrigerant circuit

61 Humidity control rotor

61a Second driven gear

64 Heater (heating mechanism)

65 Blower fan

66 Deceleration mechanism

86 impeller

88c Fan sucking population

88d Humidification side fan outlet

89a Moisture absorption side fan outlet

92 Fan motor

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of a humidity control unit according to the present invention will be described based on the drawings.

(1) Schematic configuration of air conditioner

FIG. 1 is an external view of an air conditioner 1 in which a humidity control unit that employs a force in one embodiment of the present invention is employed.

The air conditioner 1 is mainly composed of an outdoor unit 2 installed outside, an indoor unit 3 attached to the indoor side surface of the wall W, and a humidity control unit 6 attached to the outdoor surface of the wall W, etc. And. The outdoor unit 2 and the indoor unit 3 constitute a vapor compression refrigerant circuit 10 by being connected via refrigerant communication pipes 4 and 5, so that indoor air conditioning can be performed. Yes. Further, in the present embodiment, the back surface of the humidity control unit 6 (ie, the surface close to the outdoor surface of the wall W) is supplied as a humidity control air outlet pipe for supplying humidified air and the like to be described later to the room. A trachea 9 is provided and is connected to an indoor unit 3 that passes through the wall W and is attached to the indoor side surface of the wall W. For this reason, the length of the air supply pipe 9 is shorter than the configuration in which the conventional humidity control unit is mounted on the outdoor unit 2. It has become.

[2] (2) Schematic configuration of indoor unit and outdoor unit

Hereinafter, schematic configurations of the indoor unit 3 and the outdoor unit 2 will be described with reference to FIG. 1 and FIG. Here, FIG. 2 is a schematic configuration diagram of the air conditioner 1. As shown in FIG.

First, a schematic configuration of the indoor unit 3 will be described. The indoor unit 3 mainly includes an indoor refrigerant circuit 10a that constitutes a part of the refrigerant circuit 10. The indoor refrigerant circuit 10a mainly includes an indoor heat exchanger 31.

The indoor heat exchanger 31 is a heat exchanger that functions as a refrigerant heater during cooling to cool indoor air, and functions as a refrigerant cooler during heating to heat indoor air. In this embodiment, the indoor unit 3 includes an indoor fan 32 that sucks indoor air into the unit, exchanges heat between the indoor air and the refrigerant in the indoor heat exchanger 31, and supplies the indoor air to the room (see FIG. 1 arrow Fl, see F2).

[0020] In addition, the pipe end of the above-described air supply pipe 9 is inserted into the indoor unit 3, and humidified air or the like supplied from the humidity control unit 6 is once blown into the indoor unit 3. After that (see arrow F3 in FIG. 1), the indoor air is supplied to the room together with the room air 32.

Next, a schematic configuration of the outdoor unit 2 will be described. The outdoor unit 2 mainly includes an outdoor refrigerant circuit 10b that constitutes a part of the refrigerant circuit 10. The outdoor refrigerant circuit 10b mainly includes a compressor 21, a four-way switching valve 22, an outdoor heat exchanger 23, an expansion valve 24, and closing valves 25 and 26.

The compressor 21 is a compressor for compressing a refrigerant in the present embodiment.

[0021] The four-way switching valve 22 is a valve for switching the direction of the refrigerant flow. During cooling, the outdoor heat exchanger 23 serves as a cooler for the refrigerant discharged from the compressor 21, and the indoor heat exchange. In order for the converter 31 to function as a heater for the refrigerant reduced in pressure at the expansion valve 24, the discharge side of the compressor 21 and one end side of the outdoor heat exchanger 23 are connected, and the suction side of the compressor 21 and the refrigerant Connect to the connecting pipe 5 side (see the solid line of the four-way selector valve 22 in Fig. 1). In order to function the indoor heat exchanger 31 as a cooler for the refrigerant discharged from the compressor 21 and the outdoor heat exchanger 23 as a heater for the refrigerant depressurized by the expansion valve 24, the discharge side of the compressor 21 Can be connected to the refrigerant communication pipe 5 side, and the suction side of the compressor 21 and one end side of the outdoor heat exchanger 23 can be connected (see the broken line of the four-way switching valve 22 in FIG. 1).

).

In this embodiment, the outdoor heat exchanger 23 is a heat exchanger that functions as a refrigerant cooler using outdoor air as a cooling source during cooling, and functions as a refrigerant heater using outdoor air as a heating source during heating. is there. The outdoor heat exchanger 23 has one end connected to the four-way selector valve 22 and the other end connected to the refrigerant communication pipe 4! /.

[0022] The expansion valve 24 decompresses the refrigerant that is cooled in the outdoor heat exchanger 23 during cooling and is sent to the indoor heat exchanger 31, and is cooled in the indoor heat exchanger 31 during heating operation and is cooled in the outdoor heat exchanger 23. It is an electric expansion valve which decompresses the refrigerant | coolant sent to.

In the present embodiment, the outdoor unit 2 includes an outdoor fan 27 for sucking outdoor air into the unit, supplying the outdoor air to the outdoor heat exchanger 23, and then discharging the air to the outdoor (arrows F4 and F5 in FIG. 1). reference).

The shut-off valves 25 and 26 are valves provided at connection ports with external equipment pipes (specifically, refrigerant communication pipes 4 and 5). The closing valve 25 is connected to the expansion valve 24. The shut-off valve 26 is connected to the four-way selector valve 22! /.

As described above, the refrigerant circuit 10 of the air conditioner 1 is configured by connecting the indoor refrigerant circuit 10a, the outdoor refrigerant circuit 10b, and the refrigerant communication pipes 4 and 5. The air conditioner 1 of the present embodiment can be operated by switching between cooling and heating by the four-way switching valve 22.

[0023] (3) Cooling operation and heating operation

Next, the cooling operation and the heating operation of the air conditioner 1 will be described with reference to FIGS.

First, the cooling operation will be described.

During cooling operation, the four-way selector valve 22 is in the state indicated by the solid line in FIG. The discharge side is connected to one end side of the outdoor heat exchanger 23, and the suction side of the compressor 21 is connected to the refrigerant communication pipe 5 side. In addition, the closing valves 25 and 26 are opened, and the opening degree of the expansion valve 24 is adjusted.

When the compressor 21, the outdoor fan 27, and the indoor fan 32 are operated in the state of the refrigerant circuit 10, the low-pressure refrigerant is sucked into the compressor 21, compressed, and discharged as high-pressure refrigerant. This high-pressure refrigerant is sent to the outdoor heat exchanger 23 via the four-way switching valve 22, and exchanges heat with the outdoor air (see arrows F4 and F5 in Fig. 1) supplied by the outdoor fan 27. To be cooled. The high-pressure refrigerant cooled in the outdoor heat exchanger 23 is reduced in pressure by the expansion valve 24 to become low-pressure refrigerant, and then is sent to the indoor unit 3 via the closing valve 25 and the refrigerant communication pipe 4. It is done. The low-pressure refrigerant sent to the indoor unit 3 is sent to the indoor heat exchanger 31 and heated by exchanging heat with the indoor air (see arrows Fl and F2 in FIG. 1) supplied by the indoor fan 32. Is done. Then, the low-pressure refrigerant heated in the indoor heat exchanger 31 is sent to the outdoor unit 2 through the refrigerant communication pipe 5, and again through the closing valve 26 and the four-way switching valve 22, Inhaled by the compressor 21. In this way, cooling operation is performed.

Next, heating in the normal operation mode will be described with reference to FIGS. During the heating operation, the four-way selector valve 22 is in the state shown by the broken line in FIG. 1, that is, the discharge side of the compressor 21 is connected to the refrigerant communication pipe 5 side, and the suction side of the compressor 21 is the outdoor heat exchanger 23 It is in the state connected to the one end side. In addition, the closing valves 25 and 26 are opened, and the opening degree of the expansion valve 24 is adjusted.

When the compressor 21, the outdoor fan 27, and the indoor fan 32 are operated in the state of the refrigerant circuit 10, the low-pressure refrigerant is sucked into the compressor 21, compressed, and discharged as high-pressure refrigerant. It is sent to the indoor unit 3 via the four-way switching valve 22, the closing valve 26 and the refrigerant communication pipe 5. The high-pressure refrigerant sent to the indoor unit 3 is cooled in the indoor heat exchanger 31 by exchanging heat with the indoor air (see arrows F1 and F2 in FIG. 1) supplied by the indoor fan 32. The high-pressure refrigerant cooled in the indoor heat exchanger 31 is sent to the outdoor unit 2 via the refrigerant communication pipe 4 and the shut-off valve 25. And outdoor The high-pressure refrigerant sent to the knit 2 is decompressed by the expansion valve 24 to become low-pressure refrigerant, and then flows into the outdoor heat exchanger 23 and is supplied by the outdoor fan 27 (see arrow F4 in FIG. 1). And heat exchange with F5). The low-pressure refrigerant heated in the outdoor heat exchanger 23 is again sucked into the compressor 21 via the four-way switching valve 22. In this way, the heating operation is performed.

[0025] (4) Configuration of humidity control unit

Next, the configuration of the humidity control unit 6 of the present embodiment will be described with reference to FIGS. Here, FIG. 3 is an external perspective view of the humidity control unit 6. FIG. FIG. 4 is an exploded perspective view of the humidity control unit 6. FIG. 5 is a front view of the humidity control unit 6. 6 is a cross-sectional view taken along the line II of FIG. 7 is a cross-sectional view taken along the line II-II in FIG. FIG. 8 is a sectional view taken along line III-III in FIG. Fig. 9 is a sectional view taken along line IV-IV in Fig. 6. FIG. 10 is a cross-sectional view taken along the line V-V in FIG. Fig. 11 is a cross-sectional view taken along VI-VI-O-I in Fig. 7. In the following description of the humidity control unit 6, the surface where the humidity control unit 6 is close to the outdoor surface of the wall W is referred to as the “rear surface”, and the surface farther from the wall W than the rear surface. A surface “front” is defined as a “left surface”, a right surface “right surface”, a lower surface “lower surface”, and an upper surface “upper surface”.

In this embodiment, the humidity control unit 6 generates humidified air by absorbing and desorbing moisture in the outdoor air, and supplies the humidified air to the room through the air supply pipe 9. A humidity control rotor 61 capable of absorbing and desorbing moisture in the air, a casing main body 62 and a casing lid 63 as a casing, a heater 64 as a heating mechanism, and a blower fan 65 It has.

In the present embodiment, the casing main body 62 is a substantially rectangular box that is open on the front side, and mainly includes a back surface portion 71, a left side surface portion 72, a right side surface portion 73, a lower surface portion 74, and an upper surface portion 75. Have.

The back surface portion 71 is mainly formed with an inner tubular portion 71a, an outer tubular portion 71b, a back through-hole 71c, and a back drain hole 71d.

[0027] The inner cylindrical portion 71a is a cylindrical portion that extends from the substantially central position of the back surface portion 71 to the front side. On the front side end of the inner cylindrical part 71a, further toward the front side A cylindrical first cylindrical support portion 71e and a second cylindrical support portion 71f that extend are formed. The first cylindrical support portion 71e has an outer diameter that is smaller than the outer diameter of the inner cylindrical portion 71a, and has an inner diameter that is larger than the inner diameter of the inner cylindrical portion 71a. This is a cylindrical portion concentric with a (hereinafter, centered on the circle center of the inner cylindrical portion 71a). The second cylindrical support portion 71f is a small-diameter cylindrical portion disposed on the upper side of the first cylindrical support portion 71e at the lower end of the inner cylindrical portion 71a (not shown in FIG. 4).

The outer cylindrical portion 71b is a cylindrical portion having a center as the center O and extending from the substantially central position of the rear surface portion 71 to the front side so as to surround the outer side of the inner cylindrical portion 71a. A plurality of rectangular square holes 71g penetrating from the inner peripheral side to the outer peripheral side of the outer cylindrical portion 71b are formed in the right half portion of the outer cylindrical portion 71b.

[0028] The rear through-hole 71c is a round hole formed so as to penetrate the upper left portion of the region between the inner cylindrical portion 71a and the outer cylindrical portion 71b in the front view of the rear portion 71. It is. An air supply pipe 9 is inserted into the rear through-hole 71c from the front side of the rear portion 71. At the end of the air supply pipe 9 on the humidity control unit 6 side, an annular flange portion 9a having a diameter larger than that of the rear through hole 71c is provided. The air supply pipe 9 is attached to the casing body 62 at the flange portion 9a. The air supply pipe 9 is attached to the casing body 62 in a state where it is inclined at least 1 degree with respect to the horizontal direction so as to be inclined downward toward the casing body 62. Further, on the front side of the rear surface portion 71, an annular partition portion 76 that extends radially from the front side end of the outer cylindrical portion 71b toward the left side surface portion 72, the right side surface portion 73, the lower surface portion 74, and the upper surface portion 75 is provided. ing. The space inside the casing main body 62 is formed by the annular partitioning portion 76 so that the rear surface portion 71, the left side surface portion 72, the right side surface portion 73, the lower surface portion 74, the upper surface portion 75, the outer cylindrical portion 71b, and the annular partitioning portion 76 are formed. The first space S1 is surrounded by a first space SI and another space, and the first space S1 communicates with the other spaces by a plurality of square holes 71g formed in the outer cylindrical portion 71b.

[0029] In addition, the upper left portion of the region between the inner cylindrical portion 71a and the outer cylindrical portion 71b in the front view of the rear portion 71 has a substantially arc-shaped cylindrical shape with the front side and the rear side opened. An arcuate cylindrical portion 77 is provided. The arcuate cylindrical portion 77 mainly has an outer arc portion 77a, an inner arc portion 77b, a right side surface portion 77c, and a lower surface portion 77d. The outer circular arc portion 77a has an outer cylindrical shape. The inner arc portion 77b is close to the outer peripheral side of the upper left portion of the inner cylindrical portion 7la. The right side surface portion 77c and the lower surface portion 77d are formed as a second space S2 that communicates the annular space surrounded by the back surface portion 71, the inner cylindrical portion 71a, and the outer cylindrical portion 71b with the rear through-hole 71c, and the outer cylindrical portion 71b. It is partitioned into a third space S3 communicating with the formed plurality of square holes 71 g.

The back drain hole 71d is formed so as to pass through the inside of the back surface portion 71 directly below the back surface through hole 71c and from the position in contact with the top surface of the bottom surface portion 77d of the circular arc tubular portion 77 toward the lower end of the back surface portion 71. It is the made flow path.

[0030] A rectangular right side surface discharge hole 73a is formed in a portion of the right side surface portion 73 near the back surface portion 71 so as to communicate with the first space S1. The right side surface discharge hole 73a is formed from the vicinity of the upper end of the right side surface portion 73 to the vicinity of the lower end thereof.

A rectangular lower surface discharge hole 74a is formed in a portion of the lower surface portion 74 near the rear surface portion 71 so as to communicate with the first space S1. The lower surface discharge hole 74a is formed from the vicinity of the center of the lower surface portion 74 in the left-right direction to the vicinity of the right end.

A rectangular upper surface discharge hole 75a is formed in a portion of the upper surface portion 75 near the rear surface portion 71 so as to communicate with the first space S1. The upper surface discharge hole 75a is formed from the center of the upper surface portion 75 in the left-right direction to the vicinity of the right end.

The casing lid 63 is a member that covers the opening on the front side of the casing body 62. In this embodiment, the casing lid 63 is a substantially rectangular box that is open on the back side, and mainly includes a front surface portion 81, a left side surface portion 82, a right side surface portion 83, a lower surface portion 84, and an upper surface portion 85. Have.

[0031] A suction grill 81a is formed in the front portion 81 so that outdoor air can be sucked into the casing body 62 (see arrow F6 in FIGS. 1, 3 and 4).

The left side surface portion 82 is a portion disposed on the outer peripheral side of the left side surface portion 72 of the casing main body 62 in a state where the opening on the front side of the casing main body 62 is covered by the casing lid 63. The main body 62 extends to the back surface 71.

The right side surface portion 83 is a portion disposed on the outer peripheral side of the right side surface portion 73 of the casing body 62 in a state where the opening on the front side of the casing body 62 is covered by the casing lid 63. And the end on the back surface side extends to the back surface portion 71 of the casing body 62. The right side surface 83 is formed with a right side blowing grill 83a so as to face the right side surface discharge hole 73a formed in the right side surface 73 of the casing body 62, and the humidity adjusting rotor 61 is provided from the inside of the casing body 62. It is possible to blow out the moisture-absorbing air after moisture has been adsorbed in Fig. 1, 3 and 4 (see arrow F7).

[0032] The lower surface portion 84 is a portion disposed on the outer peripheral side of the lower surface portion 74 of the casing main body 62 in a state where the casing lid 63 covers the opening on the front side of the casing main body 62. The portion extends to the back surface portion 71 of the casing body 62. The lower surface portion 84 is formed with a lower surface blowing grill 84a so as to face the lower surface discharge hole 74a formed in the lower surface portion 74 of the casing main body 62, and the internal force of the casing main body 62 is also moisture in the humidity control rotor 61. It is possible to blow out the moisture-absorbing air after it has been adsorbed (see arrow F8 in Figs. 1, 3 and 4). In addition, a lower surface drain hole 84d is formed in the lower surface portion 84 so as to communicate with a back surface drain hole 71d formed in the back surface portion 71 of the casing body 62. And the drain drain hole is comprised by the above-mentioned back surface drain hole 71d and the lower surface drain hole 84d.

[0033] The upper surface portion 85 is a portion disposed on the outer peripheral side of the upper surface portion 75 of the casing main body 62 in a state where the casing lid 63 covers the opening on the front surface side of the casing main body 62. The portion extends to the back surface portion 71 of the casing body 62. An upper surface blowing grill 85a is formed on the upper surface portion 85 so as to face the upper surface discharge hole 75a formed in the upper surface portion 75 of the casing main body 62, and the internal force of the casing main body 62 is also moisture in the humidity control rotor 61. It is possible to blow out the moisture-absorbing air after it has been adsorbed (see arrow F9 in Figs. 1, 3 and 4).

The humidity control rotor 61 is a ceramic rotor having a substantially annular honeycomb structure, and has a structure through which air can easily pass. Specifically, the humidity control rotor 61 is substantially annular in a front view, and has a fine honeycomb shape in a cross section cut by a vertical plane. The main part of the humidity control port 61 is obtained by baking an adsorbent such as zeolite, silica gel, or alumina. This adsorbent such as zeolite adsorbs moisture in the air that comes into contact with it. It has the property of desorbing moisture adsorbed by heating. The inner peripheral edge of the humidity control rotor 61 is fitted to the outer peripheral side of the first cylindrical support portion 71e and is rotatable around the center O. An annular second driven gear 61 a is provided on the inner peripheral edge of the humidity control rotor 61. Further, the outer peripheral edge of the humidity control rotor 61 is close to the inner peripheral surface of the outer cylindrical portion 71b. The space in the casing body 62 is divided into first to third spaces S 1 to S 3 and other spaces by the humidity control rotor 61, the outer cylindrical portion 71 b and the annular partitioning portion 76.

[0034] <Heater>

The heater 64 is provided so as to face the second space S2 across the humidity control rotor 61 so that air flowing into the portion of the humidity control rotor 61 facing the second space S2 can be heated. It is summer. In the present embodiment, the heater 64 is an electric heater.

The blower fan 65 is disposed in the casing main body 62 on the front side of the humidity control rotor 61 and mainly includes an impeller 86 and a fan casing 87.

The impeller 86 mainly has a disk-shaped main plate 86a and a plurality of blades 86b arranged in an annular manner and fixed to the outer peripheral portion of the main plate 86a. The impeller 86 is rotationally driven by a fan motor 92. The fan motor 92 is arranged on the back side of the impeller 86, on the front side of the force and humidity control rotor 61, and its rotating shaft 92a passes through the center O, and on the vane wheel 86 side and humidity control side. It extends toward both sides of the rotor 61. A portion of the rotating shaft 92a extending toward the impeller 86 is connected to the main plate 86a through a central hole of a fan casing disc 89 which is a part of the fan casing 87.

[0035] The fan casing 87 mainly includes a fan casing main body 88 that surrounds the impeller 86 from the front side, the left and right side faces, the lower face side, and the upper face side, and a fan casing circle disposed on the rear face side of the impeller 86. It has a plate part 89 and a fan casing left upper part 90 provided so as to face the second space S2 with the heater 64 and the humidity control rotor 61 sandwiched in the rotation axis direction. The fan casing main body 88 has a scroll portion 88a and a box-shaped portion 88b. The scroll portion 88a is a tapered portion formed such that the diameter increases toward the back side in the direction of the rotation axis, and the fan suction port 88c facing the front side in the direction of the rotation axis and the front view. In A humidifying fan outlet 88d that opens toward the upper left portion is formed. On the front side of the scroll portion 88a, a bell mouth 91 having an opening having a substantially bell-shaped cross section is provided so as to face the fan suction port 88c. The box-shaped part 88b is a substantially rectangular box formed on the back side in the rotation axis direction of the scroll part 88a and having an open rear side, and the upper left part in front view is cut away.

[0036] The fan casing disk part 89 is arranged with a space in the direction of the rotation axis from the box-shaped part 88b, and an annular moisture-absorption-side fan outlet 89a is formed between the box-shaped part 88b and the direction of the rotation axis. is doing.

The upper left portion 90 of the fan casing includes a cylindrical portion 90a that communicates with the humidifying fan outlet 88d of the scroll portion 88a, a heater accommodating portion 90b that accommodates the heater 64, and the cylindrical portion 90a and the heater accommodating portion 90b. A communication portion 90c for communication, and a fourth space S4 that opposes the second space S2 with the humidity control rotor 61 sandwiched in the rotation axis direction is formed. Further, by providing the fan casing upper left portion 90, the portion other than the upper left portion of the box-shaped portion 88b communicates with the moisture absorption side fan blowout port 89a, and the fifth space facing the third space S3 of the humidity control rotor 61 is provided. A space S 5 is formed.

[0037] As described above, the outdoor air (Figs. 1, 3 and 4) sucked from the suction grill 81a is placed in the casing (that is, the casing body 62 and the casing lid 63) of the humidity control unit 6 of the present embodiment. (See arrow F6) is the suction flow path to the fan casing 87 through the opening of the bell mouth 91 and the fan suction port 88c, and the moisture absorption side fan outlet 89a after the pressure is increased by the impeller 86, the fifth space S 5 and the humidity control rotor 61 (more specifically, the part other than the upper left part in the front view) and the moisture absorption flow path leading to the third space S3 and the humidifying side fan blow after being pressurized by the impeller 86 A humidification flow path that reaches the second space S2 via the outlet 88d, the fourth space S4, the heater 64, and the humidity control rotor 61 (more specifically, the upper left portion in front view) is formed. . Here, since the air flowing through the humidification flow path passes through the heater 64 before passing through the humidity control rotor 61, the heater 64 is provided upstream of the humidity control rotor 61 in the humidification flow path. Thus, the air flowing through the humidification channel is heated.

Further, a portion of the rotating shaft 92a of the fan motor 92 that extends toward the humidity control rotor 61 is connected to the humidity control rotor 61 via a speed reduction mechanism 66 that reduces the rotation of the fan motor 92. The reduction mechanism 66 has a plurality of gears for reducing the rotation of the fan motor 92. In the present embodiment, the first drive gear 92b provided on the rotary shaft 92a and the rotary shaft 92a are Another rotating shaft 66a, a first driven gear 66b provided on the rotating shaft 66a, a second drive gear 66c provided on the rotating shaft 66a, and a second driven gear 61a provided on the humidity control rotor 61 have.

The first drive gear 92b is provided at a portion of the rotating shaft 92a that extends toward the humidity control rotor 61 side. The rotary shaft 66a is arranged immediately below the rotary shaft 92a, and the rear side end thereof is pivotally supported by the second cylindrical support portion 71f, and the front side end is a third cylinder formed in the fan casing disc 89. Axis-supporting part 89b is pivotally supported. The first driven gear 66b is a gear that meshes with the first drive gear 92b and has more teeth than the first drive gear 92b. The second drive gear 66c is a gear that meshes with the second driven gear 61a, and has fewer teeth than the second driven gear 61a.

As described above, the humidity control rotor 61 of the humidity control unit 6 of the present embodiment is rotationally driven by the fan motor 92.

(5) Operation of humidity control unit

Hereinafter, the operation of the humidity control unit 6 will be described.

The humidity control unit 6 rotates and drives the impeller 86 of the blower fan 65 by the fan motor 92, so that outdoor air is sucked into the fan casing 87 through the suction flow path (Fig .; arrows F6 to! -4) , Fl, f2). In addition to the rotational drive of the impeller 86 by the fan motor 92, the humidity control rotor 61 is also rotationally driven.

Then, by the operation of the blower fan 65, the outdoor air sucked into the fan casing 87 is pressurized by the impeller 86, and then a part thereof is sent to the humidification passage through the humidification side fan outlet 88d. The rest is sent to the moisture absorption passage through the moisture absorption side fan outlet 89a (arrows f3 and f4 in Figs. 2 and 4).

[0040] The outdoor air sent to the moisture absorption channel passes through a portion other than the upper left portion of the humidity control rotor 61, and becomes dehumidified air from which moisture contained in the air is adsorbed and removed. (See arrows f5 and f6 in Figures 2 and 4.) The dehumidified air is sent from the third space S3 to the first space S1 through the plurality of square holes 71g, and the discharge holes 73a, 74a, 75a of the casing body 62 and the casing It is discharged to the outside through the blow grills 83a, 84a and 85a of the lid 63 (see arrows F7, F8 and F9 in Figs. 1, 3 and 4).

At this time, the portion other than the upper left part of the humidity control rotor 61 that has adsorbed moisture in the air is rotated by the humidity control rotor 61, so that the upper left part of the humidity control rotor 61 to which no moisture is adsorbed is The portion other than the upper left portion of the humidity control rotor 61 that has adsorbed moisture moves to the moisture absorption flow path.

[0041] On the other hand, the outdoor air sent to the humidification flow path is heated by the heater 64 and then passes through the upper left part of the humidity control heater 61. The moisture adsorbed on the humidity control rotor 61 by this heat is removed. The dehumidified air becomes humidified air to which the desorbed moisture is added (see arrows f 7, f8, and f9 in FIGS. 2 and 4). Then, the humidified air is sent to the indoor unit 3 through the rear through-hole 71c and the air supply pipe 9 (see arrows f7, f8, f9, and F3 in FIGS. 1 to 4).

At this time, the upper left portion of the humidity control rotor 61 from which moisture in the air has been desorbed rotates the humidity control rotor 61, so that the portion other than the upper left portion of the humidity control rotor 61 to which moisture has been adsorbed It moves to the path, and the upper left part of the humidity control rotor 61 to which moisture is not adsorbed moves to the moisture absorption channel. Thus, moisture in the air is continuously absorbed and desorbed in the humidity control rotor 61.

[0042] The humidified air sent to the indoor unit 3 is supplied into the room by the operation of the indoor unit 3 (see arrows Fl and F2 in Fig. 1).

(6) Features of humidity control unit

The humidity control unit 6 of the present embodiment has the following characteristics.

(A) In the humidity control unit 6 of the present embodiment, the fan motor 92 for the blower fan 65 is configured to further rotate the humidity control motor 61, so a motor dedicated for driving the humidity control rotor 61 is not required. Thus, the unit can be made compact.

(B) In the humidity control unit 6 of the present embodiment, the fan motor 92 is disposed so as to be sandwiched between the blower fan 65 and the humidity control rotor 61, and the rotation shaft 92a is connected to the blower fan 65 side and the humidity control unit. Since it extends toward both sides of the rotor 61, the rotating shaft 92a of the fan motor 92 can be shortened as much as possible, and this contributes to a reduction in the size of the unit in the rotating shaft direction. (C) In the humidity control unit 6 of the present embodiment, the rotation shaft 92a of the fan motor 92 is connected to the humidity control rotor 61 via the speed reduction mechanism 66 that decelerates the rotation of the fan motor 92. It becomes possible to decelerate the rotation of the unmotor 92 so as to match the rotation of the humidity control rotor 61.

(D) In the humidity control unit 6 of the present embodiment, since the rotation center (that is, the center O) of the humidity control rotor 61 is substantially concentric with the rotation shaft 92a of the fan motor 92, the humidity control rotor 61 and the blower fan 6 5 Are arranged side by side in the direction of the rotation axis, which can contribute to a compact size of the unit in the direction perpendicular to the rotation axis. In addition, when the size of the blower fan 65 in the front view is relatively large, the size of the humidity control rotor 61 in the front view can be increased to such an extent that the humidity control rotor can be made thinner. Become.

(E) In the humidity control unit 6 of the present embodiment, the second driven gear provided in the humidity control rotor 61

Since 61a is provided on the inner periphery of the humidity control rotor 61, the rotational force of the fan motor 92 is arranged so that the speed reduction mechanism 66 does not overlap the humidity control rotor 61 as much as possible when the speed reduction mechanism 66 is viewed. As a result, it is easy to secure a flow path (here, the fifth space S 5 of the moisture absorption flow path) of the air flow path that passes through the humidity control rotor 61.

(F) The humidity control unit 6 of the present embodiment is provided with an air supply pipe 9 on the back surface thereof (that is, the surface close to the outer surface of the wall W). Since it is connected to the indoor unit 3 mounted on the inner surface, the length of the air supply pipe 9 can be shortened compared to the configuration in which the conventional humidity control unit is mounted on the outdoor unit 2. It is possible to reduce the amount of condensation in the air supply pipe 9.

(G) In the humidity control unit 6 of the present embodiment, the air supply pipe 9 that supplies the humidity-controlled air into the room is inclined at least 1 degree with respect to the horizontal direction so as to be inclined downward toward the casing body 62. Therefore, in the unlikely event that condensation occurs in the air supply pipe 9, the condensed water can be returned into the casing main body 62, and the condensation water can be prevented from accumulating in the air supply pipe 9.

(H) In the humidity control unit 6 of the present embodiment, since the drain hole (specifically, the back drain hole 71d and the bottom drain hole 84d) are formed in the casing body 62, the casing body 62 has accumulated in the casing body 62. Condensed water can be discharged quickly, and the casing Condensed water generated in the supply pipe 9 can be discharged through the main body 62.

(I) In the humidity control unit 6 of the present embodiment, the blower fan 65 has an impeller 86 that is rotated by a fan motor 92 and a fan casing 87 in which the impeller 86 is accommodated. The fan casing 87 has a fan suction port 88c facing one side in the rotational axis direction of the impeller 86, a humidifying fan outlet 88d communicating with the humidifying channel, and a moisture absorbing fan outlet 89a communicating with the moisture absorbing channel. Since the humidifying fan and the hygroscopic fan in the conventional humidity control unit are combined, only one fan and fan motor are required, which contributes to the compactness of the unit.

[0046] (7) Modification 1

In the humidity control unit 6 according to the above-described embodiment, the force fan provided with the speed reduction mechanism 66 that reduces the rotation ratio between the rotation of the fan motor 92 and the rotation of the humidity control rotor 61 to a predetermined one rotation ratio. In order to change the rotation ratio between the rotation of the motor and the rotation of the humidity control rotor in multiple stages, more gears may be combined.

Thereby, the humidity control capability of the humidity control unit 6 can be changed in multiple stages.

(8) Modification 2

In the humidity control unit 6 according to the above-described embodiment and Modification 1, as shown in FIG. 6, the force with which the fan motor 92 is disposed in the fifth space S5 of the moisture absorption channel, for example, in FIG. 12 and FIG. As shown in the figure, the fan motor 92 is provided with a motor enclosure 90d that surrounds the periphery of the fan motor 92 in the upper left corner 90 of the fan casing and communicates with the fourth space S4 formed by the upper left corner 90 of the fan casing. May be arranged not in the moisture absorption channel but in the humidification channel and on the upstream side of the heater 64 in the humidification channel.

[0047] Thereby, the air flowing through the humidification flow path can be heated by the waste heat of the fan motor 92, and the desorption of moisture from the humidity control rotor 61 can be promoted. It can also contribute to power saving of the heater 64.

(9) Modification 3

In the humidity control unit 6 according to the above-described embodiment and modification examples 1 and 2, force using an electric heater as the heater 64 As in this embodiment, the air conditioner 1 including the vapor compression refrigerant circuit 10 If it is installed as part of the A heat exchanger in which the refrigerant circulating in the refrigerant circuit 10 flows may be used. In this case, in order to ensure the ability to heat outdoor air, it is desirable to use the refrigerant on the high-pressure side of the refrigeration cycle among the refrigerant circulating in the refrigerant circuit 10. Specifically, since high-pressure refrigerant flows between the discharge side of the compressor 21 and the expansion valve 24 during the heating operation, for example, as shown in FIG. A high-pressure refrigerant is introduced into the humidity control unit 6 from the refrigerant communication pipe 4 that connects the unit 3 to the indoor unit 3, and a heat exchanger that uses this high-pressure refrigerant as a heat source can be used as the heater 64.

In addition, as shown in FIG. 15 and FIG. 16 in which the heater 64 is not completely replaced with a heat exchanger using a refrigerant as a heat source as shown in FIG. 14, a heat exchanger 64a and an electric heater 64b are connected. It may be configured to be used together. In this case, it is conceivable that the heat exchanger 64a is arranged upstream of the electric heater 64b in the humidification flow path in consideration of the available temperature level, thereby circulating in the refrigerant circuit 10. Since the heat of the refrigerant can be used effectively, the power consumption used in the humidity control unit 6 can be suppressed.

(10) Modification 4

The humidity control unit 6 according to the above-described embodiment and the modified examples 1 to 3 has the force S that enables the humidification operation to supply humidified air indoors, as shown in FIGS. 17 to 21, the humidification operation. Not only the dehumidifying operation but also switching can be performed.

[0049] Hereinafter, the configuration of the humidity control unit 6 will be described with reference to this modified example. In the following description, the bell mouth 91, the blower fan 65, the fan motor 92, the speed reduction mechanism 66, the heater 64, and the humidity control rotor 61 have the same structure as the above-described embodiment and modifications;! To 3. The explanation will be omitted, focusing on the newly added members, such as the casing body 62, the casing lid 63, the annular partitioning portion 76, the arcuate cylindrical portion 77, etc. having different structures.

First, the schematic configuration of the humidity control unit 6 will be described with reference to FIG. In the humidity control unit 6 according to the above-described embodiments and modifications;! To 3, the humidified air generated through the humidification flow path (that is, the spaces S4 and S2) is supplied to the room through the air supply pipe 9, and the moisture absorption unit 6 Force that dehumidified air generated through the flow path (i.e., spaces S5, S3, and SI) is only discharged outside the blow grills 83a to 85a. Supply air that communicates with both the humidification channel (see Fig. 2; spaces S4 and S21 in! ~ 23) and the moisture absorption channel (see spaces S5 and S31 in Fig. 20 to Fig. 23) and the air supply pipe 9 Provide a channel (see space S20 in Fig. 20 to Fig. 23), provide a channel (see spaces S22 and S11 in Fig. 21 to 23, etc.) for exhausting humidified air to the outside, and pass through the humidification channel The humidified operation switching state in which the air that has passed through the moisture absorption channel through the flow path (see spaces S32 and S12 in FIGS. 20 to 23, etc.) is exhausted to the outside of the room and the moisture absorption channel has been passed. It is possible to switch between the dehumidifying operation switching state in which air is supplied into the room and the air that has passed through the humidifying channel through the channel (see spaces S22 and S11 in FIGS. It is assumed to have a humidification switching mechanism 98, 99.

[0050] Then, as shown in FIGS. 18, 19, and 21, the humidified air that has passed through the humidification flow path is close to the rear surface 71 of the left side surface 72 of the casing body 62, as shown in FIGS. A rectangular left side discharge hole 73a is formed in this part, and the left side discharge port 73a is opposed to the left side surface part 82 of the casing body 62 and the left side surface discharge hole 72a formed in the left side part 72 of the casing body 62. A grill 82a is formed (see arrow F10 in FIG. 18). In addition, since the left side surface discharge hole 73a is formed in the left side surface portion 72, the rear surface portion 71, the left side surface portion 72, the right side surface portion 73, the lower surface portion 74, the upper surface portion 75, the outer cylindrical portion 71b, and the annular partition portion 76 are used. In order to divide the enclosed first space S1 into a humidified air discharge space S11 through which humidified air flows and a dehumidified air discharge space S12 through which dehumidified air flows, the upper surface discharge holes 75a of the upper surface portion 75 A first discharge space partition 75b extending downward from the left side toward the outer cylindrical part 71b, and a right side toward the inner cylindrical part 71a from a position below the left side discharge hole 72a of the left side part 72 And a second discharge space partition 72b extending in the direction. Further, a square hole 71h is formed in the upper left part of the outer cylindrical portion 71b.

[0051] In the above-described embodiments and modifications;! To 3, the annular partitioning portion 76 is replaced with the inner cylindrical portion.

The area between 71a and the outer cylindrical portion 71b is divided into a second space S2 in which only humidified air flows and a third space S3 in which only dehumidified air flows.In this modification, the inner cylindrical portion In order to divide the space above 71a as a supply air flow path, two supply air flow path partition parts 78 and 79 are formed. Then, a back through hole 7 lc is formed at a position facing the supply air flow path of the back surface portion 71, and the air supply pipe 9 is inserted. Further, the annular partitioning portion 76 contacts the outer cylindrical portion 71b. From the contact position, the direction force is further directed to the inner peripheral side, so that the region between the inner cylindrical portion 71a and the outer cylindrical portion 71b of the annular partition portion 76 is formed by the supply air flow path partition portions 78 and 79. Except for the supply air flow path, the front / rear partition part 93 is formed so as to be divided into a front side region and a back side region. In addition, in the vicinity of the supply air flow path partition 78 of the front / rear partition 93, a front side space and a rear side space (hereinafter referred to as humidified air space S22) partitioned by the front / rear partition 93 are communicated. A front-side space and a back-side space (hereinafter referred to as dehumidification) partitioned by the front and rear partition portions 93 are formed in the vicinity of the supply air flow path partition portion 79 of the front and rear partition portions 93. A discharge side opening 93b communicating with the air space S32) is formed. Further, a supply-side opening 78a that connects the front-side space partitioned by the front-and-rear partitioning portion 93 and the supply-air flow passage is formed in a portion on the front side of the front-rear partitioning portion 93 of the supply air passage partitioning portion 78. A supply-side opening 79a that connects the front-side space partitioned by the front-and-rear partition 93 and the supply-air flow path to a portion of the supply air flow-path partition 79 on the front side of the front and rear partition 93. Is formed. An arcuate cylindrical portion 77 is disposed on the front side of the front / rear partition portion 93 to form a humidified air space S21. As a result, a portion other than the humidified air space S21 in the portion on the front side of the front / rear partition part 93 forms a dehumidified air space S31. Further, the arcuate cylindrical part 77 is formed with a right side opening 77f facing the supply side opening 78a and a cover part 77e covering the opening on the front side of the supply air flow path. The dehumidifying / humidifying switching mechanisms 98 and 99 are composed of dampers, and the dehumidifying / humidifying switching mechanism 98 is disposed at a corner formed by the right side surface portion 77c of the arcuate cylindrical portion 77 and the front and rear partition portions 93. The mechanism 99 is disposed at a corner formed by the supply air flow path partitioning portion 79 and the front and rear partitioning portion 93.

In the humidity control unit 6 having such a configuration, as shown in FIG. 22, the dehumidifying / humidifying switching mechanism 98 closes the discharge side opening 93a and opens the right side opening 77f and the supply side opening 78a. And the dehumidifying / humidifying switching mechanism 99 is operated to open the discharge side opening 93b and close the supply side opening 79a, so that the humidified air flows into the humidifying flow path (that is, the space S4 and the humidified air space S21). ) Flows into the supply air flow path (ie, space S20) and is supplied to the room through the air supply pipe 9 (see arrow F3 in FIGS. 18 and 19). Dehumidification through space S5 and dehumidified air space S31) The air flows into the air space S32 and is discharged to the outside through a flow path composed of the 71g square hole, the dehumidified air discharge space S12, the discharge holes 73a, 74a, 75a and the blow grills 83a, 84a, 85a (Fig. 18). And the arrows F7, F8, F9 in Fig. 19), humidification operation is performed.

Further, in the humidity control unit 6 having such a configuration, as shown in FIG. 23, the discharge side opening 93a is opened, and the right side opening 77f and the supply side opening 78a are closed. By operating the humidification switching mechanism 98, closing the discharge side opening 93b, and operating the dehumidification switching mechanism 99 so as to open the supply side opening 79a, the dehumidified air flows into the dehumidification channel (i.e., the space S5 and the dehumidified air space S31) flow into the supply air flow path (ie, space S20) and are supplied to the room through the air supply pipe 9 (see arrow F3 in FIGS. 18 and 19), while the humidified air Flows into the humidified air space S22 through the space S4 and the humidified air space S21, and goes outside through the flow path including the square hole 71h, the humidified air discharge space Sl l, the left side discharge hole 72a, and the blow grill 82a. (Figure 18 and Figure 19) Reference mark F10), dehumidifying operation is performed.

(11) Other embodiments

As mentioned above, although embodiment of this invention and its modification were demonstrated based on drawing, specific structure is not restricted to these embodiment and its modification, the range which does not deviate from the summary of invention. Can be changed.

(A)

In the above-described embodiment and its modification, the example in which the humidity control unit according to the present invention is applied to an air conditioner having a configuration in which one indoor unit 3 is connected to one outdoor unit 2 has been described. However, the present invention is not limited to this, and in a configuration in which a plurality of indoor units are connected to a single outdoor unit, a humidity control unit that applies power to the present invention may be applied to each indoor unit.

(B)

In the above-described embodiment and its modification, the example in which the humidity control unit is installed together with the indoor unit has been described. However, the humidity control unit may be installed independently regardless of the indoor unit. In this case, for example, by providing a blow grill or the like at the tip of the air supply pipe penetrating the wall, the humidity-controlled air can be supplied into the room. Industrial applicability

If the present invention is used, it is possible to achieve a compact size of a non-water supply humidification unit using a humidity control rotor.

Claims

The scope of the claims

[1] A humidity control rotor (61) capable of absorbing and desorbing moisture in the air;

A casing in which an air flow path having a moisture absorption channel passing through the humidity control rotor and a humidification channel passing through the humidity control rotor is formed inside;

A heating mechanism (64) that is provided on the upstream side of the humidity control rotor of the humidification flow path and heats the air flowing through the humidification flow path;

A blower fan (65) disposed in the casing and driven to rotate by a fan motor (92) to flow air into the air flow path;

The fan motor further rotates the humidity control rotor.

Humidity control unit (6).

[2] The fan motor (92) is disposed so as to be sandwiched between the blower fan (65) and the humidity control rotor (61). The humidity control unit (6) according to claim 1, wherein the humidity control unit (6) extends toward both sides of the sensor.

[3] The rotation axis of the fan motor (92) is a speed reduction mechanism that decelerates the rotation of the fan motor (

The humidity control unit (6) according to claim 2, being connected to the humidity control rotor (61) via 66).

[4] The humidity control unit (6) according to claim 3, wherein the speed reduction mechanism (66) can reduce the rotation of the fan motor (92) in multiple stages.

[5] The humidity control unit (6) according to claim 3 or 4, wherein a rotation center of the humidity control rotor (61) is substantially concentric with a rotation shaft of the fan motor (92).

[6] The reduction mechanism (66) has a plurality of gears for reducing the rotation of the fan motor (92),

The humidity control rotor (61) is a substantially annular member, and an annular driven gear (6 la) constituting one of the plurality of gears is provided on an inner peripheral edge thereof. Humidity control unit (6) as described.

[7] The fan motor (92) may be arranged on the upstream side of the heating mechanism (64) in the humidification flow path! /! Humidity control unit (6).

[8] In the heating mechanism (64), the refrigerant circulating in the vapor compression refrigerant circuit (10) flows. A humidity control unit (6) according to any one of claims 1 to 8, including a heat exchanger.

[9] Supplying air that has passed through the humidification channel into the room and exhausting the air that has passed through the moisture absorption channel to the outside of the room, and supplying air that has passed through the moisture absorption channel into the room The humidity control unit (6) according to any one of claims 1 to 8, further comprising a dehumidification / humidity switching mechanism capable of switching between a dehumidification operation switching state in which the air that has passed through the humidification flow path is discharged to the outside. .

[10] The casing is provided with a humidity control air outlet pipe (9) for supplying humidity control air that has passed through the humidity control rotor (61) to the room,

The humidity control unit (6) according to any one of claims 1 to 9, wherein the humidity control air outlet pipe is inclined at least 1 degree with respect to a horizontal direction so as to have a downward slope toward the casing.

).

[11] The humidity control unit according to claim 10, wherein a drain hole is formed in the casing.

[12] The blower fan (65) includes an impeller (86) that is rotationally driven by the fan motor (92), and a fan casing (87) in which the impeller is accommodated,

The fan casing communicates with the fan suction port (88c) facing one side in the rotational axis direction of the impeller, the humidification side fan outlet (88d) communicating with the humidification channel, and the moisture absorption channel. A moisture absorption side fan outlet (89a),

The humidity control unit (6) according to any one of claims 1 to 11.