WO2018186337A1 - Humidity control unit - Google Patents

Abstract

The present invention achieves a compact form while limiting the thickness of a humidity control unit which is installed with the rear surface thereof facing a wall. A casing (50) is installed with the rear surface (50b) thereof facing a wall surface (WS) along the vertical direction. The casing (50) is provided with a front surface (50a) opposite the rear surface (50b). An adsorption rotor (32) rotates about a first rotational axis (32d) which is inclined with respect to the rear surface (50b). An adsorption fan guides pre-adsorption air to the adsorption rotor (32), and discharges post-adsorption air from which moisture has been removed by the adsorption rotor (32) by passing the air through the adsorption rotor (32) in a direction along the first rotational axis (32d). A regeneration fan (35) guides pre-regeneration air to the adsorption rotor (32), and discharges post-regeneration air to which moisture has been added from the adsorption rotor (32) by passing the air through the adsorption rotor (32) in a direction along the first rotational axis (32d).

Description

Humidity control unit

The present disclosure relates to a humidity control unit, and in particular, to a humidity control unit that is installed with a back surface of a casing facing a wall surface along a vertical direction.

Conventionally, there is a humidification unit that is configured separately from an air conditioner that performs indoor air conditioning and supplies humidification air to the indoor unit of the air conditioner. Some of such humidification units are attached to a wall to which an indoor unit is attached, as described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2014-129950), for example.

However, when the humidifier unit described in Patent Document 1 is attached to the wall, when the heater, the suction rotor, and the fan are disposed from the outside air inlet toward the through hole opened in the wall, the humidifier unit is It becomes thick and the humidification unit protrudes greatly from the wall. When the humidifying unit protrudes greatly from the wall in this way, it becomes difficult for the user to accept the design, or the cost for employing the humidifying unit to secure the installation strength of the humidifying unit increases. . Moreover, it is preferable that the planar shape of the humidification unit is small, and it is preferable that the humidification unit is compact in the in-plane direction of the humidification unit.

The problem of the present disclosure is to achieve compactness while suppressing the thickness of the humidity control unit that is installed with the back face facing the wall.

A humidity control unit according to a first aspect is installed with a back surface facing a wall surface along the vertical direction, a casing having a front surface facing the back surface, and a first rotating shaft housed in the casing and inclined with respect to the back surface. The adsorbing rotor that rotates around and the adsorbed air that is housed in the casing, guides the pre-adsorption air to the adsorbing rotor, and passes through the adsorbing rotor in the direction along the first rotation axis so that moisture is deprived by the adsorbing rotor. A suction fan that blows out, and a regeneration that is housed in a casing, guides the pre-regeneration air to the suction rotor, and blows out the post-regeneration air given moisture from the suction rotor by passing through the suction rotor in the direction along the first rotation axis. For fans.

In the humidity control unit according to the first aspect, since the first main surface and the second main surface of the adsorption rotor are disposed obliquely with respect to the back surface, the adjustment is performed while suppressing an increase in the gap in a narrow space in the casing. It becomes easy to arrange the equipment constituting the wet unit.

The humidity control unit according to the second aspect is the humidity control unit according to the first aspect, wherein the suction fan has a suction fan suction port for sucking air after suction from the suction rotor, and the regeneration fan is regenerated from the suction rotor. There is a regeneration fan suction port for sucking rear air, and the suction fan and the regeneration fan have at least one of the suction fan suction port and the regeneration fan suction port overlapped with a partial region of the suction rotor in a front view. As such, it is arranged.

In the humidity control unit according to the second aspect, at least one of the suction fan suction port and the regeneration fan suction port overlaps with a partial region of the suction rotor in a front view. If the suction fan suction port overlaps with a part of the suction rotor, the area occupied by the suction fan and the suction rotor decreases. If the regeneration fan suction port overlaps with a part of the suction rotor, the regeneration fan And the area occupied by the suction rotor is reduced.

The humidity control unit according to the third aspect is the humidity control unit according to the second aspect, wherein the adsorption rotor has a partial area disposed between the adsorption fan and the front of the casing.

In the humidity control unit according to the third aspect, the suction fan and the suction fan are arranged at a short distance by passing through the partial area of the suction rotor by disposing a part of the suction rotor between the suction fan and the front of the casing. Since the air flow of the pre-adsorption air flowing in the air can be formed, the flow path resistance when the pre-adsorption air is guided to the adsorption rotor can be kept low.

The humidity control unit according to the fourth aspect is the humidity control unit according to the third aspect, wherein the suction fan is a centrifugal fan having a bell mouth, and the suction rotor has a farthest separation point farthest from the suction hole of the bell mouth. It is arranged so as to be 10% or more away from the radius of the suction hole.

In the humidity control unit according to the fourth aspect, the farthest away part from the suction hole of the bell mouth is 10% or more of the radius of the suction hole. Air easily flows between the suction fan and the suction rotor in a region that does not overlap with the suction rotor.

The humidity control unit according to the fifth aspect is the humidity control unit according to the fourth aspect, wherein the adsorption rotor is located at a position where the furthest separation is 40% or more of the radius of the suction hole, and the closest point to the suction hole is the suction circle. Are less than 40% of the radius of the hole.

In the humidity control unit according to the fifth aspect, since the closest part of the suction rotor is less than 40% of the radius of the suction mouth of the bell mouth, air can easily flow between the suction fan and the suction rotor. The suction rotor and the suction fan can be brought close to each other.

The humidity control unit according to the sixth aspect is the humidity control unit according to the first aspect to the fifth aspect, so that the suction fan and the regeneration fan are positioned at points closer to the back than the front of the casing. It is the one that is arranged.

In the humidity control unit according to the sixth aspect, since the gravity centers of the suction fan and the regeneration fan, which are heavy objects, are located close to the back surface of the casing, the humidity control unit is adjusted as compared with the case where the gravity center is close to the front surface. The moment of force acting in the direction of moving the wet unit away from the wall is reduced.

A humidity control unit according to a seventh aspect is the humidity control unit according to any one of the first to sixth aspects, further comprising a regeneration heat exchanger for heating the pre-regeneration air that passes through the adsorption rotor, and regeneration heat exchange The vessel is arranged so that the center of gravity is located at a point closer to the back side than the front side of the casing.

In the humidity control unit according to the seventh aspect, the center of gravity of the regeneration heat exchanger, which is a heavy object, is located at a point close to the back surface of the casing, so that the humidity control unit is compared with the case where the center of gravity is close to the front surface. Since the moment of the force acting in the direction away from the wall becomes small, it becomes easy to install the wall with the back surface facing the wall surface.

The humidity control unit according to the eighth aspect is the humidity control unit according to the seventh aspect, in which the regeneration heat exchanger is disposed obliquely along the adsorption rotor.

In the humidity control unit according to the eighth aspect, the regeneration heat exchanger is disposed obliquely along at least one of the first main surface and the second main surface of the adsorption rotor. The heat exchanger can be brought close to the adsorption rotor as a whole.

The humidity control unit according to the ninth aspect is the humidity control unit according to any one of the first to eighth aspects, wherein the suction fan has a suction fan rotor that rotates about the second rotation axis, and is used for regeneration. The fan has a regeneration fan rotor that rotates around a third rotation axis, and at least one of the second rotation axis and the third rotation axis is inclined with respect to the back surface of the suction fan and the regeneration fan. It is arranged so as to be along the first rotation axis.

In the humidity control unit according to the ninth aspect, the suction fan and the regeneration fan are arranged so that at least one of the second rotating shaft and the third rotating shaft is inclined with respect to the rear surface and along the first rotating shaft. Since they are arranged, the suction fan and / or the regeneration fan and the suction rotor can be arranged obliquely and close to each other.

A humidity control unit according to a tenth aspect is the humidity control unit according to any one of the first to ninth aspects, wherein the adsorption rotor is housed in the adsorption rotor unit together with a heating device that heats the adsorption rotor for regeneration, and is adsorbed The rotor unit is arranged so as to be in contact with or close to the front and back of the casing, and the suction fan is arranged so as to be in contact with or close to the front and / or back of the casing and used for regeneration. The fan is arranged so as to come into contact with or close to the front and / or back of the casing.

In the humidity control unit according to the tenth aspect, since the adsorption rotor unit is disposed so as to be in contact with or close to the front surface and the back surface of the casing, the thickness of the casing is perpendicular to the back surface of the adsorption rotor unit. It will be the same size.

The humidity control unit according to the first aspect or the ninth aspect can be made compact while suppressing the thickness of the humidity control unit.

In the humidity control unit according to the second aspect, the in-plane dimensions of the humidity control unit can be made compact.

In the humidity control unit according to the third aspect, the suction fan can be easily downsized, and the humidity control unit can be easily downsized.

In the humidity control unit according to the fourth aspect, it is easy to ensure humidity control performance even if it is made compact.

The humidity control unit according to the fifth aspect can improve the compactness of the humidity control unit while ensuring humidity control performance.

In the humidity control unit according to the sixth aspect or the seventh aspect, the force acting in the direction of separating the humidity control unit from the wall becomes small, and it becomes easy to install the humidity control unit with the back surface facing the wall surface.

The humidity control unit according to the eighth aspect can be made compact while reducing the loss of heat energy given to the pre-regeneration air from the regeneration heat exchanger.

In the humidity control unit according to the tenth aspect, the thickness can be reduced.

The circuit diagram of the air harmony device containing the humidification unit concerning a 1st embodiment. The conceptual diagram of the humidification unit of FIG. The schematic diagram of the air conditioning apparatus containing the humidification unit of FIG. 1 attached to the wall. The front view of the humidification unit which concerns on 1st Embodiment. The right view of the humidification unit of FIG. The left view of the humidification unit of FIG. The lower side view of the humidification unit of FIG. Sectional drawing of the humidification unit cut | disconnected along the II line | wire of FIG. Sectional drawing of the humidification unit cut | disconnected along the II line | wire of FIG. The perspective view of the humidification unit which concerns on 1st Embodiment. The partial expansion perspective view of the humidification unit of FIG. The conceptual diagram of the adsorption | suction rotor, the adsorption | suction fan rotor, and the reproduction | regeneration fan rotor for demonstrating positional relationship. Sectional drawing of the humidification unit which concerns on the modification 1A. The right side of the humidification unit concerning modification 1B. The left side of the humidification unit concerning modification 1B. The perspective view which looked at the humidification unit which concerns on modification 1C from the right front. The perspective view which looked at the humidification unit which concerns on modification 1C from the left back surface. Sectional drawing which shows an example of the humidification unit which concerns on modification 1D. Sectional drawing which shows the other example of the humidification unit which concerns on modification 1D. The circuit diagram of the air conditioning apparatus containing the dehumidification unit which concerns on 2nd Embodiment. The conceptual diagram of the dehumidification unit of FIG. The schematic diagram of the air conditioning apparatus containing the dehumidification unit of FIG. 20 attached to the wall. The circuit diagram of the air conditioning apparatus containing the dehumidification unit which concerns on modification 2A. The circuit diagram of the air conditioning apparatus containing the humidification unit which concerns on 3rd Embodiment. The conceptual diagram of the humidification unit of FIG. The schematic diagram of the air conditioning apparatus containing the humidification unit of FIG. 24 attached to the wall. The figure for demonstrating the structure of the humidity control unit which concerns on the modification 3A. The circuit diagram of the air conditioning apparatus containing the dehumidification unit which concerns on 4th Embodiment. The conceptual diagram of the dehumidification unit of FIG. The schematic diagram of the air conditioning apparatus containing the dehumidification unit of FIG. 28 attached to the wall. The figure for demonstrating the structure of the humidity control unit which concerns on the modification 4A.

<First Embodiment>
Hereinafter, the humidity control unit according to the first embodiment of the present disclosure will be described with reference to the drawings. In the first embodiment, the humidification unit incorporated in the air conditioner is described as an example of the humidity control unit.

(1) Whole structure The whole structure of the air conditioning apparatus which concerns on embodiment is shown by FIG. FIG. 2 shows the concept of the configuration of the humidifying unit 30 shown in FIG. An air conditioner 1 shown in FIG. 1 includes an outdoor unit 2, an indoor unit 4, and refrigerant communication pipes 5 and 6, and a humidifying unit 30 is attached to the air conditioner 1. As shown in FIG. 3, in the air conditioner 1 according to the first embodiment, the outdoor unit 2 is installed in the outdoor OD, the indoor unit 4 is attached to the indoor ID, and the outdoor unit 2 and the indoor unit 4 are The refrigerant communication pipes 5 and 6 are used for communication. The outdoor unit 2 includes a compressor 21, a four-way valve 22, an outdoor heat exchanger 23, an electric valve 24, a closing valve 25, a closing valve 26, an outdoor fan 27, and an accumulator 28. The indoor unit 4 includes an indoor heat exchanger 42 and an indoor fan 41.

By connecting the outdoor unit 2 and the indoor unit 4 with the refrigerant communication pipes 5 and 6, a refrigerant circuit 10 for performing a vapor compression refrigeration cycle is formed in the air conditioner 1. A compressor 21 is incorporated in the refrigerant circuit 10. The compressor 21 sucks in the low-pressure gas refrigerant, compresses the sucked-in gas refrigerant, and discharges the high-temperature and high-pressure gas refrigerant. The compressor 21 is, for example, a variable capacity inverter compressor that can perform rotation speed control by an inverter. As the operating frequency of the compressor 21 increases, the amount of refrigerant circulating in the refrigerant circuit 10 increases. Conversely, when the operating frequency decreases, the amount of refrigerant circulating in the refrigerant circuit 10 decreases.

The four-way valve 22 is a valve for switching the direction of the refrigerant flow when switching between the cooling operation and the heating operation. The four-way valve 22 has a discharge port (discharge pipe 21a) of the compressor 21 connected to a first port, an outdoor heat exchanger 23 connected to a second port, an accumulator 28 connected to a third port, and a fourth port. The refrigerant communication pipe 6 is connected to the valve via a closing valve 26. This four-way valve 22 is in a state indicated by a broken line in which the refrigerant flows between the first port and the second port and the refrigerant flows between the third port and the fourth port, and between the first port and the fourth port. And the state indicated by the solid line through which the refrigerant flows between the second port and the third port.

Although the detailed configuration of the humidification unit 30 will be described later, the humidification unit 30 includes a regeneration heat exchanger 31, and the regeneration heat exchanger 31 is inserted into the refrigerant communication tube 6. Therefore, in the heating operation state, the high-temperature and high-pressure gas refrigerant discharged from the compressor 21 is sent to the regeneration heat exchanger 31 while maintaining the high temperature and pressure. This humidifying unit 30 can generate post-regeneration air with high humidity by heating the pre-regeneration air that is sent to the adsorption rotor 32 by the regeneration heat exchanger 31. The ID will be humidified.

In the outdoor heat exchanger 23 disposed between the second port of the four-way valve 22 and the motor-operated valve 24, heat is exchanged between the refrigerant flowing through the heat transfer pipe (not shown) and the outdoor air. The outdoor heat exchanger 23 functions as a radiator that releases heat from the refrigerant during the cooling operation, and functions as an evaporator that applies heat to the refrigerant during the heating operation.

The electric valve 24 is disposed between the outdoor heat exchanger 23 and the indoor heat exchanger 42. The motor-operated valve 24 is an expansion valve having a function of expanding and depressurizing the refrigerant flowing between the outdoor heat exchanger 23 and the indoor heat exchanger 42. The motor-operated valve 24 is configured so that the opening degree of the expansion valve can be changed, and the flow path resistance of the refrigerant passing through the motor-operated valve 24 can be increased by reducing the opening degree of the expansion valve. By increasing the valve opening, the flow path resistance of the refrigerant passing through the motor-operated valve 24 can be reduced. Such an electric valve 24 expands and depressurizes the refrigerant flowing from the indoor heat exchanger 42 toward the outdoor heat exchanger 23 in the heating operation, and reduces the pressure in the cooling operation from the outdoor heat exchanger 23 to the indoor heat exchanger 42. The refrigerant flowing toward is expanded and decompressed.

The outdoor unit 2 is provided with an outdoor fan 27. The outdoor fan 27 sucks outdoor air into the outdoor unit 2 and supplies the outdoor air to the outdoor heat exchanger 23. The air after heat exchange is discharged to the outside of 2. The outdoor fan 27 promotes the function of the outdoor heat exchanger 23 that cools or evaporates the refrigerant using outdoor air as a cooling source or a heating source. The outdoor fan 27 is driven by an outdoor fan motor 27a that can change the rotation speed. By changing the rotational speed of the outdoor fan 27, the air volume of the outdoor air passing through the outdoor heat exchanger 23 is changed.

The indoor unit 4 is provided with an indoor fan 41. The indoor fan 41 sucks indoor air into the indoor unit 4 and supplies the indoor air to the indoor heat exchanger 42. The air after heat exchange is discharged to the outside of 4. The indoor fan 41 promotes the function of the indoor heat exchanger 42 that cools or evaporates the refrigerant using indoor air as a cooling source or a heating source. The indoor fan 41 is driven by an indoor fan motor 41a whose rotation speed can be changed. By changing the rotation speed of the indoor fan 41, the air volume of the indoor air passing through the indoor heat exchanger 42 is changed.

In addition, when installing the humidification unit 30, it is performed in the state in which the closing valves 25 and 26 are closed. Then, when the installation of the humidifying unit 30 is finished, the closing valves 25 and 26 are opened.

(2) Basic operation The indoor ID is humidified by the humidifying unit 30 mainly when the indoor ID is dried, and there is no particular limitation on the timing when the indoor ID is humidified by the humidifying unit 30. For example, in Japan, the room is often dried in winter, and is often humidified by the humidifying unit 30 during heating operation.

(2-1) Heating Operation During the heating operation, the refrigerant circuit 10 has the four-way valve 22 in the state indicated by the solid line in FIG. Moreover, the closing valves 25 and 26 are opened, and the opening degree of the electric valve 24 is adjusted so as to depressurize the refrigerant.

When the compressor 21 is driven in the refrigerant circuit 10 during such heating operation, the low-pressure gas refrigerant is sucked into the compressor 21 through the suction pipe 21b, and is compressed by the compressor 21 so that the compressor 21 It discharges from the discharge side (discharge pipe 21a). The high-temperature and high-pressure gas refrigerant discharged from the compressor 21 is sent to the regeneration heat exchanger 31 through the first port, the fourth port, the closing valve 26 and the refrigerant communication pipe 6 of the four-way valve 22. The refrigerant heat-exchanged in the regeneration heat exchanger 31 enters the indoor heat exchanger 42 through the refrigerant communication pipe 6 and the connection pipe 71. The high-temperature and high-pressure gas refrigerant radiates heat by exchanging heat with indoor air blown out from the indoor fan 41 in the indoor heat exchanger 42. The high-pressure refrigerant after heat radiation is sent to the motor-operated valve 24 through the connection pipe 72, the refrigerant communication pipe 5, and the closing valve 25. The refrigerant that has passed through the motor-operated valve 24 is decompressed by the motor-operated valve 24 and becomes a low-pressure gas-liquid two-phase refrigerant. The low-pressure gas-liquid two-phase refrigerant exiting the motor-operated valve 24 enters the outdoor heat exchanger 23. In the outdoor heat exchanger 23, the low-pressure gas-liquid two-phase refrigerant evaporates by heat exchange with outdoor air. The low-pressure gas refrigerant discharged from the outdoor heat exchanger 23 passes through the second port and third port of the four-way valve 22 and the accumulator 28 and is sent again to the suction side (suction pipe 21b) of the compressor 21.

(2-2) Cooling Operation During the cooling operation, the refrigerant circuit 10 has the four-way valve 22 in the state indicated by the broken line in FIG. Moreover, the closing valves 25 and 26 are opened, and the opening degree of the electric valve 24 is adjusted so as to depressurize the refrigerant.

When the compressor 21 is driven in the refrigerant circuit 10 during such cooling operation, the low-pressure gas refrigerant is sucked into the compressor 21 through the suction pipe 21b, and is compressed by the compressor 21 so that the compressor 21 It discharges from the discharge side (discharge pipe 21a). The high-temperature and high-pressure gas refrigerant discharged from the compressor 21 is sent to the outdoor heat exchanger 23 through the first port and the second port of the four-way valve 22. The high-temperature and high-pressure gas refrigerant radiates heat in the outdoor heat exchanger 23 by heat exchange with outdoor air. The high-pressure refrigerant after heat radiation is sent to the motor operated valve 24. The refrigerant that has passed through the motor-operated valve 24 is decompressed by the motor-operated valve 24 and becomes a low-pressure gas-liquid two-phase refrigerant. The low-pressure gas-liquid two-phase refrigerant is sent to the indoor heat exchanger 42 through the closing valve 25, the refrigerant communication pipe 5 and the connection pipe 72. In the indoor heat exchanger 42, the low-pressure gas-liquid two-phase refrigerant evaporates by heat exchange with the indoor air blown out from the indoor fan 41 to become a low-pressure gas refrigerant. The low-pressure gas refrigerant discharged from the indoor heat exchanger 42 includes a connection pipe 71, a refrigerant communication pipe 6 into which the regeneration heat exchanger 31 is inserted, a closing valve 26, a four-way valve 22 (from the fourth port to the third port), And is again sent to the suction side (suction pipe 21b) of the compressor 21 through the accumulator 28.

(3) Detailed configuration (3-1) Humidification unit 30
FIG. 4 shows the external appearance of the humidifying unit 30 as viewed from the front. The Z-axis direction shown in FIG. 4 is the vertical direction, and the X-axis direction is the left-right direction. The humidification unit 30 shown in FIG. 4 is attached to the wall surface WS. The wall surface WS extends parallel to the XZ plane. 5 shows a right side surface 50e of the humidifying unit 30, FIG. 6 shows a left side surface 50f of the humidifying unit 30, and FIG. 7 shows a lower side surface 50d of the humidifying unit 30. 8 shows a state in which the humidification unit 30 is cut along the line II in FIG. 4 and viewed from the right side, and FIG. 9 shows the humidification unit along the line II in FIG. The state which cut | disconnected 30 and was seen from the left side is shown. 8 and 9, the Y-axis direction is the front-rear direction. In the cross-sectional views of FIGS. 8 and 9 and the like, hatching such as oblique lines is partially omitted in order to make the drawings easy to see.

As shown in FIG. 1, the humidification unit 30 includes a regeneration heat exchanger 31, an adsorption rotor 32, a rotor motor 33, an adsorption fan 34, a regeneration fan 35, and a humidification hose 36. The regeneration heat exchanger 31, the suction rotor 32, the rotor motor 33, the suction fan 34, and the regeneration fan 35 are accommodated in the casing 50 shown in FIGS.

In the humidification unit 30, as shown in FIG. 2, pre-adsorption air is taken in from the pre-adsorption air intake 52 and sent to the adsorption region of the adsorption rotor 32. The post-adsorption air deprived of moisture in the adsorption region of the adsorption rotor 32 is blown out from the adsorption fan outlet 56. The pre-adsorption air and post-adsorption air streams are generated by the adsorption fan 34. The pre-regeneration air is taken in from the pre-regeneration air intake 54, heated when passing through the regeneration heat exchanger 31, and sent to the regeneration region of the adsorption rotor 32. The regenerated air given moisture in the regeneration region of the adsorption rotor 32 is blown out into the indoor unit 4 through the regenerated air duct 35e and the humidifying hose 36. The airflow of the air before regeneration and the air after regeneration is generated by the regeneration fan 35.

(3-1-1) Casing 50
As shown in FIGS. 4 to 9, the shape of the casing 50 of the humidifying unit 30 is designed based on a rectangular parallelepiped. Therefore, in the casing 50, the front 50a, the back 50b, the upper side 50c, the lower side 50d, the right side 50e, and the left side 50f occupy most of the appearance. The front surface 50a is a surface facing the back surface 50b. The upper side surface 50c, the lower side surface 50d, the right side surface 50e, and the left side surface 50f are side surfaces located between the front surface 50a and the back surface 50b. Note that there is a right inclined surface 50g that is inclined obliquely between the right side surface 50e and the back surface 50b, and there is a left inclined surface 50h that is inclined obliquely between the left side surface 50f and the back surface 50b (see FIG. 7).

The humidification unit 30 shown in FIG. 3 is attached so that the back surface 50b contacts the wall surface WS along the vertical direction. However, the casing 50 may not be attached so as to be in contact with the wall surface WS, and may be attached so that the back surface 50b of the casing 50 faces the wall surface WS. For example, the casing 50 may be attached to a frame disposed in parallel with the wall surface WS. A through hole 101 is formed in the wall 100 shown in FIG. The refrigerant communication pipes 5 and 6 and the humidifying hose 36 pass through the through hole 101.

In the casing 50, a dimension M1 (distance between the front surface 50a and the back surface 50b) perpendicular to the back surface 50b (a distance between the front surface 50a and the back surface 50b) shown in FIG. 5 is parallel to the back surface 50b (parallel to the XZ plane). Direction) dimension. The smallest dimension of the front surface 50a in the direction parallel to the back surface 50b is the distance between the right side surface 50e and the left side surface 50f (dimension M2 in the X-axis direction (see FIG. 7)). As can be seen by comparing the dimensions M1 and M2 in FIG. 7, the distance (dimension M1) between the front surface 50a and the back surface 50b is smaller than the distance (dimension M2) between the right side surface 50e and the left side surface 50f. That is, the casing 50 is thinned. As will be described later, when the suction rotor 32 is inclined with respect to the back surface 50b, the first rotating shaft 32d of the suction rotor 32 is perpendicular to the back surface 50b (the surface 32a of the suction rotor 32 is parallel to the back surface 50b). ), The dimension M3 in the Z-axis direction (see FIG. 4) can be reduced.

In the casing 50 shown in FIGS. 3 and 4, the longest side of the casing 50 is arranged along the Z-axis direction, and in order from the top (from the side closer to the upper side surface 50 c), the regeneration fan 35. The suction rotor 32 and the suction fan 34 are arranged side by side.

As shown in FIG. 4, a grid 51 is attached to the front surface 50 a of the casing 50. FIG. 10 shows an appearance in which the grid 51 is removed from the front surface 50 a of the humidifying unit 30. The casing 50 shown in FIG. 10 is viewed from the diagonally lower left. A semicircular pre-adsorption air intake 52 is formed on the front surface 50a of the casing 50 at a position slightly below the central portion of the front surface 50a. The longitudinal direction of the pre-adsorption air intake 52 is parallel to the X-axis direction. The exposed adsorption rotor 32 is visible from the pre-adsorption air intake 52.

A pipe connection portion cover 53 is attached to the left side surface 50 f of the casing 50. FIG. 11 shows an enlarged view of a portion of the external appearance of the humidifying unit 30 with the pipe connection portion cover 53 removed. The pipe connection part cover 53 covers the pipe connection parts 31a and 31b. The pipe connection part 31 a is connected to the refrigerant communication pipe 6 connected to the closing valve 26. The pipe connection part 31 b is connected to the refrigerant communication pipe 6 connected to the indoor heat exchanger 42 of the indoor unit 4. A pre-regeneration air intake 54 is formed on the left side surface 50f of the casing 50, and an opening 55 for taking out the humidification hose 36 from the inside of the casing 50 to the outside is formed (see FIG. 6). As shown in FIG. 5, the pre-regeneration air intake 54 is also formed on the right side surface 50e. The lower surface 50d of the casing 50 is formed with a suction fan outlet 56 (see FIG. 7).

(3-1-2) Adsorption rotor unit 39
The adsorption rotor unit 39 includes a regeneration heat exchanger 31, an adsorption rotor 32, and a rotor motor 33. The suction rotor 32 is a disk-shaped member. A large number of through holes (not shown) are formed in the rotor body 32c from the circular surface 32a to the circular back surface 32b of the adsorption rotor 32 so that air can pass through the adsorption rotor 32 from the surface 32a to the back surface 32b. It is configured. The adsorption rotor 32 contains a polymeric adsorbent. The adsorbent has a function of adsorbing moisture from the air passing through the adsorption rotor 32, and when air heated to a temperature higher than normal temperature passes through the adsorption rotor 32, moisture is absorbed into the heated air. It has a function to detach. In the disk-shaped region where the adsorption rotor 32 is arranged, the adsorption region passes through the air taken in from the pre-adsorption air intake 52 until it is blown out from the adsorption fan blow-out port 56, and the air before regeneration. In the regeneration region, the air taken in from the intake port 54 passes through the humidifying hose 36 before being sent to the indoor unit 4. These adsorption area and regeneration area are arranged so as not to overlap. In the humidifying unit 30 of the first embodiment, the adsorption area occupies the lower half of the generally disk-shaped area, and the regeneration area occupies the upper half of the generally disk-shaped area. Note that the occupation ratio of the adsorption area and the reproduction area can be designed as appropriate. For example, the reproduction area may be a sector and the rest may be an adsorption area.

As shown in FIG. 9, the suction rotor unit 39 supports the suction rotor 32 so that the suction rotor 32 rotates around the first rotation shaft 32d. The suction rotor 32 rotates around a first rotation shaft 32d inclined with respect to the back surface 50b. The suction rotor 32 is arranged such that an angle α formed by the first rotation shaft 32d and the X axis shown in FIG. 9 is, for example, 10 degrees to 30 degrees. Here, the angle α formed by the first rotation shaft 32d and the X axis is arranged to be about 15 degrees. For example, the suction rotor 32 rotates 30 times per hour. When the adsorption rotor 32 makes one rotation around the first rotation shaft 32d, the adsorption rotor 32 passes through the adsorption region and the regeneration region, and adsorbs moisture and desorbs moisture. For this purpose, the adsorption rotor unit 39 holds the regeneration heat exchanger 31 and reproduces the heat for regeneration so that all the pre-regeneration air heated through the regeneration heat exchanger 31 can pass through the adsorption rotor 32. An air path that passes through the regeneration region after passing through the vessel 31 is formed.

The regeneration heat exchanger 31 is arranged in parallel to the back surface 32b of the adsorption rotor 32 arranged in this way. For example, the envelope surface 31 </ b> P at the front side end of the fin of the regeneration heat exchanger 31 is substantially parallel to the back surface 32 b of the adsorption rotor 32. The regeneration heat exchanger 31 is preferably disposed obliquely along the adsorption rotor 32 in order to reduce the heat energy loss by bringing the regeneration heat exchanger 31 close to the adsorption rotor 32. In this case, those inclined by ± 10 degrees with respect to the back surface 32 b of the adsorption rotor 32 are also included in the arrangement along the adsorption rotor 32. The regeneration heat exchanger 31 is arranged so that the center of gravity is located at a point closer to the back surface 50 b than to the front surface 50 a of the casing 50. When the center of gravity of the regenerative heat exchanger 31 is located at a point close to the back surface 50b of the casing 50, the moment of force acting in the direction in which the humidifying unit 30 is separated from the wall 100 is greater than when the center of gravity is near the front surface 50a. Since it becomes small, it becomes easy to install the back surface 50b facing the wall surface WS.

The pre-regeneration air sent to the regeneration heat exchanger 31 is taken in from the pre-regeneration air intake 54 formed on the right side surface 50e and the left side surface 50f. The pre-regeneration air intake 54 includes an oblique cut portion 54 a that is obliquely cut along the inclination of the adsorption rotor 32. The pre-regeneration air intake 54 is increased by the amount of the opening being expanded by such an oblique cut portion 54a, and the flow path resistance of the pre-regeneration air is reduced.

(3-1-3) Suction fan 34
Here, an example in which a sirocco fan is used for the suction fan 34 is shown, but a fan that can be used for the suction fan 34 is not limited to a sirocco fan. However, the suction fan 34 is preferably a centrifugal fan that easily satisfies the conditions of the occupied volume and the air volume. The suction fan 34 includes a suction fan rotor 34a that rotates around the second rotation shaft 34b, a suction motor 34c, a suction fan case 34d, and a post-adsorption air duct 34e. The second rotating shaft 34b extends in a direction perpendicular to the back surface 50b. The suction motor 34c rotates the suction fan rotor 34a. The adsorption fan 34 guides pre-adsorption air from the pre-adsorption air intake 52 to the adsorption rotor 32 by the adsorption fan rotor 34a. Then, the pre-adsorption air is sent by the adsorption fan rotor 34a and passes through the adsorption rotor 32 in the adsorption area. Air that has been deprived of moisture by the adsorption rotor 32 by passing through the adsorption rotor 32 becomes air after adsorption. At this time, the air passing through the suction rotor 32 passes through the suction rotor 32 in parallel with the first rotation shaft 32 d of the suction rotor 32. When air passes through the suction rotor 32 in parallel with the first rotation shaft 32d in this way, the air passes through the suction rotor 32 as compared with the case where the air passes through the first rotation shaft 32d with an inclination of, for example, more than 30 degrees. The resistance to air is reduced.

A post-adsorption air duct 34e is disposed on the back surface 32b side of the adsorption rotor 32. The post-adsorption air duct 34e is larger than the portion where the adsorption rotor 32 and the adsorption area overlap in front view, and larger than the suction circular hole 34f of the bell mouth 34g of the adsorption fan 34. Further, the post-adsorption air duct 34e is arranged so as to cover the portion where the adsorption rotor 32 and the adsorption region overlap and the suction circular hole 34f of the bell mouth 34g in a front view. The adsorbed air sucked into the adsorbing fan 34 from the adsorbed air duct 34e through the suction circular hole 34f of the bell mouth 34g of the adsorbing fan 34 is blown out from the adsorbing fan outlet 56.

As shown in FIG. 8, the suction fan 34 is arranged such that the region RE1 of the suction circular hole 34f of the bell mouth 34g and the partial region RE2 of the suction rotor 32 overlap in front view. A partial region RE <b> 2 of the suction rotor 32 is disposed between the suction fan 34 and the front surface 50 a of the casing 50. By arranging the partial region RE2 of the suction rotor 32 between the suction fan 34 and the front surface 50a of the casing 50, the flow path resistance when the pre-adsorption air is guided to the suction rotor can be kept low, and the suction The fan 34 can be downsized.

Then, among the back surface 32b of the suction rotor 32 shown in FIG. 8, the projection range of the suction circular hole 34f of the bell mouth 34g (the portion overlapping the suction circular hole 34f in front view) is the farthest from the suction circular hole 34f. The farthest separation point P1 is 60% away from the radius r1 of the suction circular hole 34f. In order to make it easier for air to flow between the suction rotor 32 and the suction fan 34 in an area of the suction mouth 34f of the bell mouth 34g of the suction fan 34 that does not overlap with the suction rotor 32, the furthest away point P1 Is preferably arranged so as to be at least 10% of the radius r1. Further, if the suction rotor 32 is too far from the suction fan 34, it is difficult to reduce the thickness of the humidifying unit 30, so that the suction rotor 32 has, for example, the farthest separation point P1 separated by 40% or more of the radius r1 of the suction circular hole 34f. In some cases, the distance at which the nearest closest point P2 is separated from the suction circular hole 34f is set to be less than 40% of the radius r1 of the suction circular hole 34f. Here, the distance from the suction circular hole 34f to the closest point P2 is about 35% of the radius r1 of the suction circular hole 34f.

The suction fan 34 is arranged so that its center of gravity is located closer to the back surface 50b than to the front surface 50a of the casing 50. When the center of gravity of the suction fan 34 and the regeneration fan 35, which are heavy objects, is located at a point close to the back surface 50b of the casing 50, the direction in which the humidifying unit 30 is separated from the wall 100 as compared with the case where the center of gravity is close to the front surface 50a. Since the moment of the force acting on the back surface 50b becomes small, it becomes easy to install the back surface 50b facing the wall surface WS.

(3-1-4) Regeneration fan 35
Here, an example in which a turbo fan is used as the reproduction fan 35 is shown, but a fan that can be used as the reproduction fan 35 is not limited to a turbo fan. However, it is preferable to use a centrifugal fan that can easily satisfy the conditions of the occupied volume and the blowing amount as the regeneration fan 35. The regeneration fan 35 includes a regeneration fan rotor 35a that rotates around the third rotation shaft 35b, a regeneration motor 35c, a regeneration fan case 35d, and a post-regeneration air duct 35e. The third rotation shaft 35b extends in a direction perpendicular to the back surface 50b. The reproduction motor 35c rotates the reproduction fan rotor 35a. The regeneration fan 35 guides the pre-regeneration air from the pre-regeneration air intake 54 to the adsorption rotor 32 by the regeneration fan rotor 35a. Then, the pre-regeneration air is sent by the regeneration fan rotor 35a and passes through the adsorption rotor 32 in the regeneration region. The air given moisture to the adsorption rotor 32 by passing through the adsorption rotor 32 becomes air after regeneration. The pre-regeneration air is heated by the regeneration heat exchanger 31 before reaching the back surface 32 b of the adsorption rotor 32. At this time, the air passing through the suction rotor 32 passes through the suction rotor 32 in parallel with the first rotation shaft 32 d of the suction rotor 32. When air passes through the suction rotor 32 in parallel with the first rotation shaft 32d in this way, the air passes through the suction rotor 32 as compared with the case where the air passes through the first rotation shaft 32d with an inclination of, for example, more than 30 degrees. The resistance to air is reduced.

A post-regeneration air duct 35e is disposed on the surface 32a side of the adsorption rotor 32. The post-regeneration air duct 35e is larger than the portion where the suction rotor 32 and the regeneration region overlap in front view, and larger than the suction port 35f of the regeneration fan 35. The post-regeneration air duct 35e is disposed so as to cover the portion where the suction rotor 32 and the regeneration region overlap and the suction port 35f when viewed from the front. The regeneration fan 35 is a post-regeneration air duct 35e that is disposed along the front surface 50a of the casing 50, after the regeneration air that has passed from the regeneration heat exchanger 31 in the order of the back surface 32b and the front surface 32a of the adsorption rotor 32. To the suction port 35 f of the suction rotor 32. The post-regeneration air sucked into the regeneration fan 35 from the post-regeneration air duct 35e through the suction port 35f of the regeneration fan 35 is blown out through the humidification hose 36.

The reproduction fan 35 is arranged so that its center of gravity is located closer to the back surface 50b than to the front surface 50a of the casing 50. When the gravity centers of the suction fan 34 and the regeneration fan 35, which are heavy objects, are located at a point close to the back surface 50b of the casing 50, the humidifying unit 30 is moved away from the wall as compared with the case where the center of gravity is near the front surface 50a. Since the moment of the working force becomes small, it becomes easy to install the back surface 50b facing the wall surface WS.

(3-1-5) Positional relationship among the suction rotor 32, the suction fan 34, and the regeneration fan 35 The suction rotor 32, the suction fan rotor 34a, and the regeneration fan rotor 35a are arranged in one direction (Z-axis) along the back surface 50b. Direction). In the YZ plane, the first rotation shaft 32d of the suction rotor 32, the second rotation shaft 34b of the suction fan rotor 34a, and the third rotation shaft 35b of the regeneration fan rotor 35a pass through one straight line L1 extending in the Z-axis direction. Are lined up. When the suction rotor 32, the suction fan rotor 34a, and the regeneration fan rotor 35a are viewed in the arrangement direction, that is, when viewed from the lower side surface 50d to the upper side surface 50c along the straight line L1, as shown in FIG. Part of the rotor 32 and part of the suction fan rotor 34a overlap with part of the regeneration fan rotor 35a, and the distance M between the front surface 50a and the back surface 50b can be reduced to reduce the dimension M1 in the Y-axis direction. Can be made thinner.

Further, since the third rotation shaft 35b of the first rotation shaft 32d and the second rotation shaft 34b is arranged in the YZ plane passing through one straight line L1 extending in the Z-axis direction, the suction fan rotor 34a and Since the reproduction fan rotor 35a does not protrude from the suction rotor 32 in the X-axis direction, the dimension M2 of the casing 50 in the X-axis direction can be reduced.

In the adsorption rotor 32, in the adsorption region, air flows from the front surface 32a of the adsorption rotor 32 toward the back surface 32b, and in the regeneration region, air flows from the back surface 32b of the adsorption rotor 32 toward the front surface 32a. That is, the suction fan 34 and the regeneration fan 35 are arranged so that the airflow of the air before adsorption and the airflow of the air before regeneration are opposed to each other. When the airflow before wearing and the airflow before regeneration are counterflows, the humidifying ability can be improved as compared with the case where these airflows flow in the same direction.

(4) Modification (4-1) Modification 1A
In the first embodiment, the suction fan 34 and the regeneration fan 35 are arranged so that the airflow of the pre-adsorption air and the airflow of the pre-regeneration air are opposed to each other. As shown in FIG. 13, 35 may be arranged such that the airflow of the air before adsorption and the airflow of the air before regeneration flow in the same direction. In the humidifying unit 30A shown in FIG. 13, a pre-regeneration air intake 57 is formed on the front surface 50a of the casing 50A. The pre-regeneration air intake 57 is formed in a rectangular shape having substantially the same size as that of the regeneration heat exchanger 31 in a front view. A grid 58 is attached to the pre-regeneration air intake 57. Even when the pre-regeneration air inlet 57 is formed on the front surface 50a, the pre-regeneration air intake port may be provided on the right side surface 50e and the left side surface 50f close to the front surface 50a, as in the first embodiment. Good.

(4-2) Modification 1B
Although the case where the pre-adsorption air intake 52 is formed in the front surface 50a of the casing 50 has been described in the first embodiment, the pre-adsorption air intake may be formed on a side surface. For example, as shown in FIGS. 14 and 15, the pre-adsorption air intake 59 may be formed on the right side surface 50e and the left side surface 50f.

(4-3) Modification 1C
Although the said 1st Embodiment demonstrated the case where the opening part 55 for taking out and arrange | positioning the humidification hose 36 from the inner side of the casing 50 to the outer side was formed in the left side surface 50f, the opening part 55 is FIG. And as FIG. 17 shows, you may form in the right side surface 50e.

Moreover, the opening part 55 may be formed in both the right side surface 50e and the left side surface 50f which oppose each other. Usually, since only one of the openings 55 is used, it is possible to cover the opening 55 with a cap made of resin or rubber, for example. When the through hole 101 is formed in the wall surface WS, the correspondence between the right side surface 50e facing the through hole 101 and the correspondence direction facing the left side surface 50f relative to the through hole 101 can be selected. The degree of freedom of installation of the humidification unit 30 can be improved as compared with the case where it is provided on one side.

(4-4) Modification 1D
In the first embodiment, the case where only the first rotation shaft 32d of the suction rotor 32 is inclined with respect to the back surface 50b has been described. However, the second rotation shaft 34b of the suction fan 34 and / or the regeneration fan 35 is described. The third rotation shaft 35b may be configured to be inclined with respect to the back surface 50b. In the humidifying unit 30B shown in FIG. 18, the first rotation shaft 32d of the suction rotor 32 and the second rotation shaft 34b of the suction fan 34 are inclined with respect to the back surface 50b. In the humidifying unit 30B shown in FIG. 18, the suction rotor 32 and the suction fan 34 are arranged so that the first rotary shaft 32d and the second rotary shaft 34b are parallel to each other. Further, the suction rotor 32 and the suction fan rotor 34a of the suction fan 34 are disposed so as to overlap each other in a front view. In the humidifying unit 30B shown in FIG. 18, similarly to the humidifying unit 30 of the first embodiment, the first rotating shaft 32d, the second rotating shaft 34b and the second rotating shaft 34b are arranged in the YZ plane extending in the Z direction at the center of the casing 50B. The three rotation shafts 35b are arranged side by side. The humidifying unit 30B shown in FIG. 18 is configured such that the first rotating shaft 32d and the second rotating shaft 34b are parallel to each other. For example, the first rotating shaft 32d and the second rotating shaft 34b are in the YZ plane. You may arrange | position so that the inclination angle with respect to the back surface 50b may differ so that it may cross | intersect inside. For example, the suction fan 34 is arranged so that the angle β formed by the second rotation shaft 34b and the X axis shown in FIG. 18 is, for example, 10 degrees to 30 degrees. In the humidification unit 30B, the third rotating shaft 35b of the regeneration fan 35 extends in a direction perpendicular to the back surface 50b. The dimension M2 in the X-axis direction that is the smallest in the direction parallel to the back surface 50b is the same as in the first embodiment, and the dimension M4 in the vertical direction (Y-axis direction) is smaller than the dimension M2 in the X-axis direction. This is similar to the first embodiment. Further, by tilting the second rotation shaft 34b with respect to the back surface 50b, the dimension M5 in the Z-axis direction is made as small as the dimension M3 of the first embodiment.

In the humidifying unit 30C shown in FIG. 19, the first rotation shaft 32d of the suction rotor 32, the second rotation shaft 34b of the suction fan 34, and the third rotation shaft 35b of the regeneration fan 35 are relative to the back surface 50b. Inclined. In the humidifying unit 30B shown in FIG. 19, the suction rotor 32, the suction fan 34, and the regeneration fan 35 are arranged so that the first rotation shaft 32d, the second rotation shaft 34b, and the third rotation shaft 35b are parallel to each other. Has been. Further, the first rotation shaft 32d of the suction rotor 32 and the suction fan rotor 34a of the suction fan 34 are arranged so as to overlap each other in a front view. Therefore, the dimension of the casing 50C in the Z-axis direction can be reduced as compared with the casing 50 of the first embodiment. In front view, the suction rotor 32 and the regeneration fan 35 are arranged so as not to overlap except for the portion of the post-regeneration air duct 35e. In the humidifying unit 30C of FIG. 19, the regeneration fan 35 excluding the post-regeneration air duct 35e and the suction rotor 32 are arranged so as not to overlap in a front view. Good. In the humidifying unit 30C shown in FIG. 19, the first rotating shaft 32d, the second rotating shaft 34b, and the second rotating shaft are arranged in the YZ plane extending in the Z direction at the center of the casing 50C, similarly to the humidifying unit 30 of the first embodiment. The three rotation shafts 35b are arranged side by side. The humidifying unit 30C shown in FIG. 19 is configured such that the first rotating shaft 32d, the second rotating shaft 34b, and the third rotating shaft 35b are parallel to each other. For example, the first rotating shaft 32d and the first rotating shaft 32d The two rotation shafts 34b, the first rotation shaft 32d and the third rotation shaft 35b, and the second rotation shaft 34b and the third rotation shaft 35b may be arranged so as to have different inclination angles with respect to the back surface 50b so that they intersect in the YZ plane. . The reproduction fan 35 is arranged so that an angle γ formed by the third rotation shaft 35b and the X axis shown in FIG. 19 is, for example, 10 degrees to 30 degrees. The smallest dimension M2 in the X-axis direction in the direction parallel to the back surface 50b is the same as in the first embodiment, and the dimension M6 in the vertical direction (Y-axis direction) is smaller than the dimension M2 in the X-axis direction. This is the same as in the first embodiment. Further, the third rotation shaft 35b is also inclined with respect to the back surface 50b, so that the dimension M7 in the Z-axis direction is smaller than the dimension M3 of the first embodiment.

(4-5) Modification 1E
In the first embodiment and the modified examples 1A to 1D, the suction circular hole 34f that is the suction fan suction port overlaps with a partial region of the suction rotor 32 in a front view (in other words, when viewed in the thickness direction). However, the suction port 35f, which is a regeneration fan suction port, may be disposed so as to overlap with a partial region of the suction rotor 32 in a front view.

(4-6) Modification 1F
In the first embodiment and the modified examples 1A to 1E, the humidifying units 30, 30A to 30A to 50C are arranged so that the longitudinal direction of the casings 50, 50A to 50C (the direction in which the sides of the dimensions M3, M5, and M7 extend) coincides with the Z-axis direction. Although 30C is mounted, even if the humidifying units 30, 30A to 30C are mounted so that the longitudinal direction of the casings 50 and 50A to 50C extends in the X-axis direction by rotating in a plane parallel to the back surface 50b, for example. Good.

(5) Features (5-1)
The humidification unit 30 of 1st Embodiment, the humidification unit 30A of the modification 1A, and the humidification units 30B and 30C of the modification 1D are examples of a humidity control unit. The suction rotor 32 rotates around a first rotation shaft 32d inclined with respect to the back surface 50b of the casing 50, 50A, 50B, 50C. Since the suction rotor 32 is disposed obliquely with respect to the back surface 50b, the humidification units 30, 30A to 30C such as the suction fan 34 and the regeneration fan 35 are suppressed while suppressing an increase in the gap in a narrow space inside the casing 50. It is easy to arrange the equipment that constitutes. As a result, it is possible to reduce the dimensions M3, M5, M7 in the in-plane direction parallel to the back surface 50b while reducing the thickness (dimensions M1, M4, M5) of the humidifying units 30, 30A to 30C. Yes.

(5-2)
In the first embodiment and the modifications 1A to 1F described above, at least one of the suction circular hole 34f that is the suction fan suction port and the suction port 35f that is the regeneration fan suction port is a partial region of the suction rotor 32. The suction rotor 32, the suction fan 34, and the regeneration fan 35 are arranged so as to overlap in a front view. When the suction circular hole 34f and a partial region of the suction rotor 32 overlap, the area occupied by the suction fan 34 and the suction rotor 32 is reduced with respect to the in-plane dimension parallel to the back surface 50b. The dimensions M3, M5, and M7 in the direction in which 34 and the suction rotor 32 are arranged can be reduced, and the in-plane dimensions of the humidifying units 30, 30A to 30C can be made compact. Similarly, when the suction port 35f and a partial area of the suction rotor 32 overlap, the area occupied by the regeneration fan 35 and the suction rotor 32 is reduced with respect to the in-plane dimension parallel to the back surface 50b. The dimension in the direction in which the fan 35 and the suction rotor 32 are arranged can be reduced, and the in-plane dimensions of the humidifying units 30 and 30A to 30C can be made compact.

(5-3)
In the humidifying units 30, 30 A to 30 C, the adsorption rotor 32 is partially disposed between the adsorption fan 34 and the front surface 50 a of the casing 50. With such an arrangement, it is possible to form an airflow of pre-adsorption air that passes through a partial region of the adsorption rotor 32 and flows to the adsorption fan 34 at a short distance. The channel resistance can be kept low. As a result, since the suction capacity of the suction fan 34 can be small, the suction fan 34 can be easily downsized, and the humidification units 30 and 30A to 30C can be easily made compact.

(5-4)
The suction fan 34 is a centrifugal fan having a bell mouth 34g, and the suction rotor 32 is arranged such that the furthest away point P1 from the suction circular hole 34f of the bell mouth 34g is 10% or more of the radius of the suction circular hole 34f. Has been placed. With such a configuration, air easily flows between the suction fan 34 and the suction rotor 32 in a region that does not overlap with the suction rotor 32 in the suction circular hole 34f of the bell mouth 34g. Since the amount of pre-adsorption air can be easily guided, it is easy to ensure the humidification performance even if it is compact.

(5-5)
In the suction rotor 32, the most distant place P1 of the suction rotor 32 is separated from the suction circular hole 34f by 40% or more of the radius r1 (see FIG. 8) of the suction circular hole 34f, and the closest part P2 closest to the suction circular hole 34f It is separated from the circular hole 34f by less than 40% of the radius r1 of the suction circular hole 34f. Since the closest point P2 of the suction rotor 32 is less than 40% of the radius r1 of the suction circular hole 34f of the bell mouth 34g, air can easily flow between the suction fan 34 and the suction rotor 32. The suction rotor 32 and the suction fan 34 can be brought close to each other. As a result, the compactification of the humidification unit 30 can be improved while ensuring the humidification performance.

(5-6)
In the humidifying units 30 and 30A to 30C of the first embodiment, the gravity center of the suction fan 34 and the gravity center of the regeneration fan 35 are arranged so that they are located closer to the back surface 50b than the front surface 50a of the casings 50 and 50A to 50C. Has been. Since the gravity centers of the suction fan 34 and the regeneration fan 35, which are heavy objects, are located near the rear surface 50b of the casings 50, 50A to 50C, humidification is performed as compared with the case where these gravity centers are located near the front surface 50a. The moment of force acting in the direction of separating units 30, 30A to 30C from wall 100 is reduced. For example, if the humidification units 30, 30A to 30C are supported by the center in the Y-axis direction by hand, they will fall toward the wall 100. Thus, the force acting in the direction of separating the humidifying units 30, 30A to 30C from the wall 100 is reduced, and the rear surface 50b is opposed to the wall surface WS and can be easily installed.

(5-7)
The humidifying units 30, 30A to 30C described above are arranged so that the center of gravity of the regeneration heat exchanger 31 is positioned closer to the back surface 50b than the front surface 50a of the casing 50, 50A to 50C. Compared with the case where the center of gravity of the heat exchanger 31 is close to the front surface 50a, the moment of the force acting in the direction of separating the humidifying units 30, 30A to 30C from the wall 100 is reduced, so that the rear surface 50b faces the wall surface WS. Easy to install.

(5-8)
Since the regeneration heat exchanger 31 is disposed obliquely along the adsorption rotor 32, the regeneration heat exchanger 31 can be brought close to the adsorption rotor 32 as a whole. As a result, the heat energy given to the pre-regeneration air from the regeneration heat exchanger 31 is unlikely to escape to the surrounding members, so that the compactness can be achieved while reducing the loss of heat energy.

(5-9)
As described in Modification Example 1D, the suction fan 34 and the regeneration fan 35 of the humidifying units 30B and 30C have at least one of the second rotating shaft 34b and the third rotating shaft 35b with respect to the back surface 50b. It arrange | positions so that it may become diagonal and may follow the 1st rotating shaft 32d. Thus, when at least one of the second rotating shaft 34b and the third rotating shaft 35b is inclined with respect to the back surface 50b and is arranged along the first rotating shaft 32d, the suction fan 34 and / or Alternatively, both the regeneration fan 35 and the suction rotor 32 can be arranged obliquely and close to each other. As a result, it is possible to reduce the size by reducing the dimensions M5 and M7 in the in-plane direction parallel to the back surface 50b while suppressing the thickness (dimensions M4 and M5) of the humidifying units 30B and 30C.

(5-10)
In the humidification units 30, 30A to 30C, the adsorption rotor 32 is accommodated in the adsorption rotor unit 39 together with the regeneration heat exchanger 31 for heating the adsorption rotor for regeneration. For example, as illustrated in FIGS. 8 and 9, the suction rotor unit 39 is disposed so as to come into contact with the front surface 50 a and the back surface 50 b of the casing 50 at the contact points P <b> 3 and P <b> 4. Further, as shown in FIGS. 8 and 9, the suction fan 34 is disposed so as to contact the back surface 50 b of the casing 50, and the regeneration fan 35 is close to the front surface 50 a and the back surface 50 b of the casing 50. Are arranged to be. Thus, since the suction rotor unit 39 including the suction rotor 32 arranged obliquely is arranged so as to contact the front surface 50a and the rear surface 50b of the casing 50, the dimension M1 in the thickness direction of the casing 50 is the suction rotor unit. The size in the vertical direction with respect to the back surface 50b of 39 is about the same. In this way, the humidification unit 30 is reduced in thickness.

Since the humidification unit 30 only needs to be thinned, the adsorption rotor unit does not need to be in contact with the front surface and the back surface of the casing, and may be disposed close to each other. Similarly, the suction fan is arranged so as to come into contact with or close to the front and / or back of the casing, and the regeneration fan comes into contact with or close to the front and / or back of the casing. It only has to be arranged.

Second Embodiment
(6) Overall Configuration The humidifying unit 30 of the first embodiment and the humidifying units 30A to 30C of the modified examples 1A to 1F are described as humidity control units that are incorporated in the air conditioner 1 and humidify the room ID. These humidifying units 30, 30A to 30C can be used as a dehumidifying unit by installing the same unit in the room and discharging the air after regeneration to the outside.

FIG. 20 shows the air conditioner 1 to which the dehumidifying unit 30D is attached. FIG. 21 shows the concept of the configuration of the dehumidifying unit 30D shown in FIG. The dehumidifying unit 30D is an example of a humidity control unit in the second embodiment. The dehumidifying unit 30D of the second embodiment is similar to the humidifying unit 30 of the first embodiment in that the regeneration heat exchanger 31, the adsorption rotor 32, the rotor motor 33, the adsorption fan 34, the regeneration fan 35, and the casing 50 The exhaust hose 37 is provided instead of the humidification hose 36 provided in the humidification unit 30 of the first embodiment. Since the configuration other than the exhaust hose 37 is the same as the dehumidifying unit 30D of the second embodiment and the humidifying unit 30 of the first embodiment, the description thereof is omitted.

(7) Operation of Dehumidification Unit 30D FIG. 22 shows a state where the casing 50 of the dehumidification unit 30D is attached to the room ID. From the dehumidifying unit 30D, the exhaust hose 37 extends to the outdoor OD through the through hole 101. The refrigerant communication pipe 6 piped from the outdoor unit 2 to the room ID through the through hole 101 is connected to the pipe connection part 31a of the dehumidifying unit 30D, and is piped from the outdoor unit 2 to the room ID through the through hole 101. The refrigerant communication pipe 5 is connected to the indoor unit 4 (connection pipe 72). The indoor unit 4 (connection pipe 71) and the pipe connection part 31b of the dehumidifying unit 30D are connected by the refrigerant communication pipe 6 piped in the room ID. The dehumidifying unit 30D is attached to a room different from the indoor unit 4, for example, and is arranged in a drying room, for example.

When the dehumidifying unit 30D performs dehumidification, the pre-adsorption air is taken in from the indoor ID through the pre-adsorption air intake 52 by the adsorption fan 34 and sent to the adsorption rotor 32. Then, the air after adsorption that has been dehydrated by the adsorption rotor 32 and dried is blown out by the adsorption fan 34 from the adsorption fan outlet 56 to the room ID. Further, the pre-regeneration air is taken in from the room ID through the pre-regeneration air intake 54 by the regeneration fan 35 and sent to the adsorption rotor 32. The regenerated air given moisture by the adsorption rotor 32 is blown out by the regeneration fan 35 through the exhaust hose 37 to the outdoor OD.

(8) Modification (8-1) Modification 2A
In the second embodiment, the case where the indoor unit 4 and the dehumidifying unit 30D are used in combination in FIG. 20 has been described. However, as shown in FIG. 23, the dehumidifying unit 30D and the outdoor unit 2 except for the indoor unit 4 are used. Can be directly connected to each other.

<Third Embodiment>
(9) Overall Configuration In the second embodiment described above, the case has been described where the dehumidifying unit 30D is installed in the room ID to dehumidify the room ID, but the humidifying unit 30E shown in FIG. 24 is installed in the room ID. It can also comprise so that indoor ID may be humidified. FIG. 25 shows the concept of the configuration of the humidifying unit 30E shown in FIG.

This humidification unit 30E is an example of a humidity control unit in the third embodiment. The humidification unit 30E of the third embodiment is similar to the humidification unit 30 of the first embodiment in that the regeneration heat exchanger 31, the adsorption rotor 32, the rotor motor 33, the adsorption fan 34, the regeneration fan 35, and the casing 50 are used. And a humidifying hose 36. The humidifying unit 30E according to the third embodiment further adsorbs to the outdoor OD through the through hole 101 and the air supply hose 38 for taking in pre-adsorption air from the outdoor OD through the through hole 101 (see FIG. 26). And an exhaust hose 37 for exhausting the rear air. The humidifying hose 36 of the humidifying unit 30E is a hose that connects the humidifying unit 30E and the indoor unit 4 in the room ID. Since the configuration other than the exhaust hose 37 and the air supply hose 38 is the same as that of the humidifying unit 30E of the third embodiment and the humidifying unit 30 of the first embodiment, description thereof is omitted.

(10) Operation of Humidification Unit 30E FIG. 26 shows a state where the casing 50 of the humidification unit 30E is attached to the room ID. When the humidification unit 30E performs humidification, the pre-adsorption air is taken in from the outdoor OD through the air supply hose 38 and the pre-adsorption air intake 52 by the adsorption fan 34 and sent to the adsorption rotor 32. The adsorbed air that has been dehydrated and dried by the adsorption rotor 32 is blown out by the adsorption fan 34 from the adsorption fan outlet 56 through the exhaust hose 37 to the outdoor OD. Further, the pre-regeneration air is taken in from the room ID through the pre-regeneration air intake 54 by the regeneration fan 35 and sent to the adsorption rotor 32. The regenerated air given moisture by the adsorption rotor 32 is sent to the indoor unit 4 through the humidifying hose 36 by the regeneration fan 35.

(11) Modification 3A
3rd Embodiment demonstrated the humidification unit 30E installed in indoor ID. Moreover, 2nd Embodiment demonstrated dehumidification unit 30D installed in indoor ID. By providing a damper that switches between intake and exhaust of the suction fan 34 and the regeneration fan 35, a dehumidifying / humidifying unit having both the humidifying function and the dehumidifying function can be configured.

FIG. 27 shows a humidity control unit 30F having both a humidifying function and a dehumidifying function. The humidity control unit 30F further includes four dampers 61 to 64 as compared with the configuration of the humidification unit 30E. The dampers 61 and 62 switch so that one of the pre-adsorption air and the pre-regeneration air is taken from the room ID and the other is taken from the outdoor OD. The dampers 63 and 64 are switched so that one of the air after adsorption blown by the suction fan 34 and the air after regeneration blown by the regeneration fan 35 is blown out to the room ID and the other is blown out to the outdoor OD. . When the dampers 61 and 62 are in the state shown by the solid line in FIG. 27, the pre-adsorption air is taken in from the outdoor OD through the air supply hose 38 by the adsorption fan 34 and sent to the adsorption rotor 32. The pre-reproduction air is taken from the room ID by the reproduction fan 35 and sent to the adsorption rotor 32. When the dampers 63 and 64 are in the state indicated by the solid line in FIG. 27, the air after adsorption is blown out by the adsorption fan 34 through the exhaust hose 37 to the outdoor OD, and the air after reproduction by the regeneration fan 35. Is blown out to the room ID through the humidity control hose 36A, and the room ID is humidified.

On the other hand, when the dampers 61 and 62 are in the state indicated by the broken line in FIG. 27, the pre-adsorption air is taken in from the room ID by the adsorption fan 34 and sent to the adsorption rotor 32, and the regeneration fan. The pre-regeneration air is taken in from the outdoor OD through the air supply hose 38 and is sent to the adsorption rotor 32 by 35. When the dampers 63 and 64 are in the state shown by the broken lines in FIG. 27, the air after adsorption is blown out by the adsorption fan 34 to the room ID through the humidity control hose 36A, and the reproduction fan 35 After regeneration, the air is blown out to the outdoor OD through the exhaust hose 37, and the indoor ID is dehumidified. The dampers 61 to 64 may be constituted by shutters or may be provided outside the casing.

<Fourth embodiment>
(12) Overall Configuration In the first embodiment, the case where the humidifying unit 30 is installed in the outdoor OD and the indoor ID is humidified has been described. However, the dehumidifying unit 30G shown in FIG. 28 is installed in the outdoor OD. It can also comprise so that indoor ID may be dehumidified. FIG. 29 shows the concept of the configuration of the dehumidifying unit 30G shown in FIG.

This dehumidifying unit 30G is an example of a humidity control unit in the fourth embodiment. The dehumidifying unit 30G of the fourth embodiment is similar to the humidifying unit 30 of the first embodiment in that the regeneration heat exchanger 31, the adsorption rotor 32, the rotor motor 33, the adsorption fan 34, the regeneration fan 35, and the casing 50 are used. And. The dehumidifying unit 30G according to the fourth embodiment is further adsorbed to the room ID through the through hole 101 (see FIG. 30) and the air supply hose 38 for taking in pre-adsorption air from the room ID and the through hole 101. A humidity control hose 36A for sending rear air is provided. Since the configuration other than the humidity control hose 36A and the air supply hose 38 is the same as the dehumidifying unit 30G of the fourth embodiment and the humidifying unit 30 of the first embodiment, the description thereof is omitted.

(13) Operation of Dehumidification Unit 30G FIG. 30 shows a state where the casing 50 of the dehumidification unit 30G is attached to the outdoor OD. When the dehumidifying unit 30G performs dehumidification, the pre-adsorption air is taken in from the indoor ID through the air supply hose 38 and the pre-adsorption air intake 52 by the adsorption fan 34 and sent to the adsorption rotor 32. Then, the adsorbed air that has been dehydrated and dried by the adsorption rotor 32 is blown out by the adsorption fan 34 from the adsorption fan outlet 56 to the room ID through the humidity control hose 36A. In addition, the pre-regeneration air is taken in from the outdoor OD through the pre-regeneration air intake 54 by the regeneration fan 35 and sent to the adsorption rotor 32. The regenerated air given moisture by the adsorption rotor 32 is blown out to the outdoor OD by the regeneration fan 35.

(14) Modification 4A
In the fourth embodiment, the dehumidifying unit 30G installed in the outdoor OD has been described. Moreover, 1st Embodiment demonstrated the humidification unit 30 installed in outdoor OD. By providing a damper that switches between intake and exhaust of the suction fan 34 and the regeneration fan 35, a dehumidifying / humidifying unit having both the humidifying function and the dehumidifying function can be configured.

FIG. 31 shows a humidity control unit 30H having both a humidifying function and a dehumidifying function. The humidity control unit 30H further includes four dampers 66 to 69 with respect to the configuration of the humidification unit 30. The dampers 66 and 67 switch so that one of the pre-adsorption air and the pre-regeneration air is taken from the room ID and the other is taken from the outdoor OD. The dampers 68 and 69 switch so that one of the post-adsorption air blown by the suction fan 34 and the post-regeneration air blown by the regeneration fan 35 is blown to the room ID and the other is blown to the outdoor OD. .

When the dampers 66 and 67 are in the state shown by the solid line in FIG. 31, the pre-adsorption air is taken in from the outdoor OD by the adsorption fan 34 and sent to the adsorption rotor 32, and before the reproduction by the reproduction fan 35. Air is taken from the room ID through the air supply hose 38 and sent to the adsorption rotor 32. When the dampers 68 and 69 are in the state shown by the solid line in FIG. 31, the air after adsorption is blown out to the outdoor OD by the adsorption fan 34, and the air after regeneration is supplied to the humidity control hose 36A by the regeneration fan 35. The room ID is blown out and the room ID is humidified.

On the other hand, when the dampers 68 and 69 are in the state shown by the broken line in FIG. 31, the pre-adsorption air is taken in from the indoor ID through the air supply hose 38 by the adsorption fan 34 and the adsorption rotor 32. The air before regeneration is taken in from the outdoor OD by the regeneration fan 35 and is sent to the adsorption rotor 32. When the dampers 68 and 69 are in the state shown by the broken line in FIG. 31, the air after adsorption is blown out by the adsorption fan 34 to the room ID through the humidity control hose 36 </ b> A and is regenerated by the regeneration fan 35. Air is blown to the outdoor OD, and the room ID is dehumidified. The dampers 66 to 69 may be constituted by shutters or may be provided outside the casing.

While the embodiments of the present disclosure have been described above, it will be understood that various changes in form and details can be made without departing from the spirit and scope of the present disclosure as set forth in the claims. .

DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus 2 Outdoor unit 4 Indoor unit 30,30A-30C, 30E Humidification unit (example of humidity control unit)
30D, 30G Dehumidification unit (example of humidity control unit)
30F, 30H Humidity control unit 31 Heat exchanger for regeneration 32 Adsorption rotor 34 Adsorption fan 34a Adsorption fan rotor 34f Suction hole (example of adsorption fan intake port)
34g Bell mouth 35 Regeneration fan 35a Regeneration fan rotor 35f Suction port 36 Humidification hose 36A Humidity control hose 37 Exhaust hose 38 Supply hose 39 Suction rotor unit 50, 50A to 50C Casing 52 Pre-adsorption air intake 54, 57 Before regeneration Air intake 56 Suction fan outlet

JP 2014-129950 A

Claims (10)

1. A casing (50, 50A to 50C) which is installed with a rear surface facing a wall surface along the vertical direction and has a front surface facing the rear surface;
   An adsorption rotor (32) housed in the casing and configured to rotate around a first rotation axis inclined with respect to the back surface;
   It is housed in the casing, guides pre-adsorption air to the adsorption rotor, and blows out post-adsorption air deprived of moisture by the adsorption rotor by passing through the adsorption rotor in a direction along the first rotation axis. A suction fan (34);
   Contained in the casing, the pre-regeneration air is guided to the adsorption rotor, and passes through the adsorption rotor in a direction along the first rotation axis, thereby blowing out the post-regeneration air given moisture from the adsorption rotor. A humidity control unit comprising a certain reproducing fan (35).
2. The suction fan has a suction fan suction port (34f) for sucking the air after suction from the suction rotor;
   The regeneration fan has a regeneration fan suction port (35f) for sucking the post-regeneration air from the adsorption rotor,
   The suction fan and the regeneration fan are arranged so that at least one of the suction fan suction port and the regeneration fan suction port overlaps a partial region of the suction rotor in a front view.
   The humidity control unit according to claim 1.
3. The suction rotor is arranged such that the partial region is closer to the front surface of the casing than the suction fan.
   The humidity control unit according to claim 2.
4. The suction fan is a centrifugal fan having a bell mouth (34 g),
   The suction rotor is arranged so that the farthest away part from the suction hole of the bell mouth is 10% or more of the radius of the suction hole,
   The humidity control unit according to claim 3.
5. In the suction rotor, the farthest separation point is separated by 40% or more of the radius of the suction circular hole, and the closest point closest to the suction circular hole is separated by less than 40% of the radius of the suction circular hole
   The humidity control unit according to claim 4.
6. The suction fan and the regeneration fan are arranged such that the center of gravity of each of them is located at a point closer to the back surface than the front surface of the casing.
   The humidity control unit according to any one of claims 1 to 5.
7. A heat exchanger for regeneration (31) for heating the pre-regeneration air penetrating the adsorption rotor;
   The regeneration heat exchanger is disposed such that the center of gravity is located at a point closer to the back surface than the front surface of the casing.
   The humidity control unit according to any one of claims 1 to 6.
8. The regeneration heat exchanger is disposed obliquely along the adsorption rotor.
   The humidity control unit according to claim 7.
9. The suction fan has a suction fan rotor (34a) configured to rotate around a second rotation axis;
   The regeneration fan has a regeneration fan rotor (35a) configured to rotate around a third rotation axis,
   The suction fan and the regeneration fan are arranged such that at least one of the second rotating shaft and the third rotating shaft is inclined with respect to the rear surface and along the first rotating shaft. Yes,
   The humidity control unit according to any one of claims 1 to 8.
10. The adsorption rotor is housed in an adsorption rotor unit (39) together with a heating device for heating the adsorption rotor for regeneration,
    The adsorption rotor unit is disposed so as to come into contact with or close to the front surface and the back surface of the casing,
    The suction fan is disposed so as to be in contact with or close to the front surface and / or the back surface of the casing;
    The regeneration fan is disposed so as to be in contact with or close to the front surface and / or the back surface of the casing.
    The humidity control unit according to any one of claims 1 to 9.

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