WO2022201695A1

WO2022201695A1 - Dehumidifying device

Info

Publication number: WO2022201695A1
Application number: PCT/JP2021/047699
Authority: WO
Inventors: 圭介今川; 幸大甲田
Original assignee: アイリスオーヤマ株式会社
Priority date: 2021-03-26
Filing date: 2021-12-22
Publication date: 2022-09-29
Also published as: JP2022151382A; TW202300825A

Abstract

Provided is a dehumidifying device capable of enhancing dehumidification efficiency. A dehumidifying device (X) is provided with: a housing (1) provided with an inlet port (11b) and an outlet port (11c); a dehumidifying section (2) provided with a dehumidifying rotor (21) that removes moisture in the air drawn in from the inlet port (11b); and a cooling section (42) for cooling the air moving from the inlet port (11b) toward the dehumidifying section (2).

Description

dehumidifier

The present invention relates to a dehumidifier that removes moisture from the air.

As a dehumidifying device, for example, an evaporator 10, a radiator 11 for condensation, and a condenser 12 are provided in an air passage connecting an intake port 2 provided on the rear surface of the main body 1 and an outlet port 4 provided on the front of the upper surface. , and a radiator 13 for heat absorption are sequentially arranged, and a moisture absorption rotor 8 for absorbing moisture in the air is rotatably provided facing the suction port 3 provided in the lower front portion of the main body 1. A device has been proposed in which the rotor 8 is connected to the dew condensation radiator 11 and the heat absorption radiator 13 by pipes (for example, Patent Document 1).
In the above dehumidifier, the air passage from the evaporator 10 to the outlet 4 through the condenser 12 and the air passage from the moisture absorbing rotor 8 to the outlet 4 are joined in the middle. In other words, condensation of air by the evaporator and condenser and adsorption by the dehumidification rotor are performed separately.

Japanese Patent Application Laid-Open No. 2003-4253

There is a demand for increasing dehumidification efficiency in dehumidifiers.
SUMMARY OF THE INVENTION An object of the present invention is to provide a dehumidifier capable of increasing dehumidification efficiency.

A dehumidifier according to the present invention includes a housing having an inlet and an outlet, a dehumidifying section including a dehumidifying rotor for dehumidifying moisture in the air sucked from the inlet, and a dehumidifying section directed from the inlet to the dehumidifying section. and a cooling unit for cooling air.

According to the above configuration, since cooled air is supplied to the dehumidifying section, the dehumidifying efficiency can be enhanced.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the dehumidifier which concerns on embodiment, (a) is the figure seen from the upper front side, (b) is the figure seen from the upper rear side. It is a sectional view of a dehumidifier. It is a perspective view of a state in which the housing is removed, (a) is a view from the upper front side, and (b) is a view from the upper rear side. It is the perspective view which looked at the decomposition|disassembly state of the apparatus from which the housing|casing was removed from the upper front side. It is the perspective view which looked at the decomposition|disassembly state of the apparatus which removed the housing|casing from the back side downward direction. It is a cross-sectional enlarged view of the upper part of an apparatus, (a) is the figure seen from the left-right direction, (b) is the figure seen from the upper part of the left-right direction. 4 is an exploded perspective view of the frame; FIG. (a) is a view of the first dehumidifying section and the like from the suction port side, and (b) is a view of the evaporator and the like from the suction port side.

<Overview>
A first dehumidifier according to an aspect of an embodiment includes a housing including an inlet and an outlet, a dehumidifying section including a dehumidifying rotor that dehumidifies moisture in the air sucked from the inlet, and the inlet. and a cooling unit that cools the air flowing from the dehumidifying unit. As a result, the temperature of the dehumidifying rotor can be lowered and the moisture absorption efficiency of the dehumidifying rotor can be increased, compared to a structure that does not include a cooling section.
A second dehumidifier according to another aspect of the embodiment is the first dehumidifier, wherein the dehumidifier includes a heater that heats the dehumidification rotor, a drive motor that rotationally drives the dehumidification rotor, and the heater. and a heat exchanger that exchanges heat with the air that has been heated by the dehumidifying rotor and that has passed through the dehumidifying rotor, the heat exchanger being provided between the dehumidifying rotor and the cooling section. As a result, the low-temperature air cooled by the cooling unit is supplied (impacts) to the heat exchanger, thereby promoting heat exchange and improving dehumidification efficiency.
A third dehumidifying device according to another aspect of the embodiment is the second dehumidifying device, wherein the dehumidifying rotor is arranged in a first region facing the heater and a second region not facing the heater and the heat exchanger. It is rotationally driven so as to pass through two regions and move toward a third region facing the heat exchanger. As a result, the low-temperature air cooled by the cooling unit is passed through the high-temperature portion of the dehumidifying rotor heated by the heater, thereby lowering the temperature to a temperature at which the dehumidifying rotor can quickly absorb moisture, thereby increasing the adsorption efficiency.

A fourth dehumidifier according to another aspect of the embodiment is the second or third dehumidifier, wherein the cooling unit is provided facing and adjacent to the heat exchanger. As a result, the heat exchanger is cooled by the low-temperature air, the circulation path of the dehumidifying section is cooled, dew condensation is likely to occur in the heat exchanger, and the dehumidifying efficiency can be enhanced.
A fifth dehumidifier according to another aspect of the embodiment is the air heated by the heater in any one of the second to fourth dehumidifiers and supplied from the dehumidifying rotor to the heat exchanger. passes through the periphery of the cooling section facing the dehumidifying rotor. As a result, the circulation path of the dehumidification section is cooled, dew condensation is likely to occur in the heat exchanger, and the dehumidification efficiency can be enhanced.
A sixth dehumidifying device according to another aspect of the embodiment is the dehumidifying device according to any one of the first to fifth dehumidifiers, wherein the casing includes a compressor, an evaporator, and a radiator. wherein the cooling section is the evaporator of the second dehumidifying section. As a result, the dehumidifying efficiency can be enhanced by the second dehumidifying section, and the size of the device can be reduced as compared with the case of separately providing the cooling section that does not constitute the second dehumidifying section.
A seventh dehumidifier according to another aspect of the embodiment is the sixth dehumidifier, wherein the dehumidifier is arranged between the evaporator and the radiator. As a result, the size of the device can be reduced.
An eighth dehumidifier according to another aspect of the embodiment is the sixth or seventh dehumidifier, wherein the distance between the evaporator and the dehumidifier is smaller than the distance between the dehumidifier and the radiator. As a result, the size of the device can be reduced while improving the dehumidification efficiency.

<Embodiment>
1. Dehumidifier Mainly, it demonstrates using (a), (b) of FIG. 1, and FIG.
The dehumidifier X includes a housing 1 having an inlet 11b and an outlet 11c. The dehumidifier X includes at least a first dehumidifying section 2 that dehumidifies the air sucked from the suction port 11b and a cooling section that cools the air flowing from the suction port 11b toward the first dehumidifying section 2 in the housing 1.
The dehumidifier X, as shown in FIG. 2, has a blower section 3 in the housing 1 for sucking air from the suction port 11b and for discharging the sucked air from the discharge port 11c.
The dehumidifier X of the present embodiment includes the second dehumidification section 4 inside the housing 1, and the evaporator 42 of the second dehumidification section 4 is used as an example of the cooling section.
For the sake of convenience, the first dehumidifying section 2 and the second dehumidifying section 4 are denoted by "first" or "second" in order to distinguish between them. The first dehumidifying section 2 and the second dehumidifying section 4 are supported by a frame 7 within the housing 1 .
The dehumidifier X of this embodiment includes a tank 81 detachably attached to the housing 1 for storing dehumidified water. The dehumidifier X includes an operation section 5 for a user to operate the device, and a circuit unit 6 integrally including a power supply section and a control section.
Here, for convenience of explanation, the side where the tank 81 exists is the front side, the side where the suction port 11b exists is the rear side, and the side where the discharge port 11c exists is the upper side. is the left-right direction.
Each part will be described below.

2. Each part (1) Housing The housing 1 is box-shaped, and has an opening 11a for the tank 81 at the lower front side, an intake port 11b extending from the middle to the upper rear side, and an exhaust port 11c at the upper front side. Each has an opening for the operation part 5 in the upper rear part.
As shown in FIGS. 1A, 1B and 2, a filter 82 is provided at the suction port 11b, and a louver 13 is rotatably provided at the discharge port 11c.

(2) Outline of First Dehumidifier (2-1) Description will be made mainly with reference to FIGS. 4 and 5. FIG.
The first dehumidifying section 2 includes a dehumidifying rotor 21 that dehumidifies at least the moisture in the air sucked from the suction port 11b. That is, the first dehumidifier 2 is a desiccant dehumidifier.
In addition to the dehumidifying rotor 21, the first dehumidifying unit 2 includes a heater 22 that heats the dehumidifying rotor 21, a drive motor 23 that rotationally drives the dehumidifying rotor 21, a blower 24 that sends air to the heater 22, and a heater. The first frame 72 is provided with a heat exchanger 25 that exchanges heat with the air heated by 22 and passed through the dehumidifying rotor 21 by the blower 24 , and a circulation path 26 that circulates the air by the blower 24 . The circulation path 26 includes a first passage 261 that connects the blower 24 and the heater 22, a second passage 262 that connects the heater 22 and the heat exchanger 25, and a heat exchanger 25 and the blower 24. and a third passage 263 that connects with the first frame 72 .
The first dehumidifying section 2 is provided on an air flow path from the air sucked from the suction port 11b to the air discharged from the discharge port 11c.

The dehumidification of the first dehumidification section 2 is performed as follows. First, when the air sucked from the suction port 11b passes through the dehumidification rotor 21, moisture (humidity) in the air is adsorbed by the dehumidification rotor 21. As shown in FIG. The portion of the dehumidifying rotor 21 that has adsorbed moisture is heated when it reaches the heater 22 due to the rotation of the dehumidifying rotor 21 . Moisture evaporated by heating is sent to the heat exchanger 25 through the second passage 262 by the blower 24 , cooled by the heat exchanger 25 and condensed into water, which is stored in the tank 81 . On the other hand, in the dehumidification rotor 21, the portion heated by the heater 22 releases (dries) moisture, and the rotation of the rotor 21 again adsorbs the moisture in the air from the suction port 11b.

(2-2) Dehumidifying Rotor The dehumidifying rotor 21 is made of a water absorbing material (hygroscopic material) such as zeolite, has a disc shape, and is rotatably supported by the first frame 72 .
(2-3) Heater The heater 22 has a heater in the heater case 221 arranged on the opposite side of the suction port 11b with respect to the dehumidification rotor 21, and a receiver on the opposite side of the heater case 221 with the dehumidification rotor 21 interposed therebetween. 222. The heater case 221 connects with the first passage 261 and the receiver 222 connects with the second passage 262 .
As shown in FIG. 8A, the heater 22 is arranged concentrically with the disk-shaped dehumidification rotor 21 and has a fan shape with the same radius as the dehumidification rotor 21 . When viewed from the suction port 11b side, the heater 22 is disposed above and on one side in the left-right direction with respect to an imaginary line passing through the center of the dehumidifying rotor 21 and extending in the vertical direction.

(2-4) Blower As shown in FIG. 4, the blower 24 is arranged on the opposite side of the suction port 11b in the first frame 72 and in the lower part of the center in the left-right direction. ) and a motor 242 (see FIG. 4). The blower 24 is provided on a first passage cover 264 that forms the first passage 261 .

(2-5) Heat Exchanger The heat exchanger 25 is arranged on the suction port 11b side with respect to the dehumidification rotor 21, and is heated by the heater 22 using low-temperature air sucked from the suction port 11b. exchange heat with air. The heat exchanger 25 is arranged between the evaporator 42 of the second dehumidification section 4 and the dehumidification rotor 21, as shown in FIG. As shown in FIG. 8(a), the heat exchanger 25 is arranged on the other side in the left-right direction with respect to an imaginary line passing through the center of the dehumidifying rotor 21 and extending in the vertical direction when viewed from the suction port 11b side. It is
2, 5 and 6 (a) and (b), the heat exchanger 25 here includes a heat exchange section 252 consisting of a large number of resin pipes 251, and ( An upper support portion 253 that supports the upper end portion of the heat exchange portion 252 as shown in a) and (b), and a lower support portion 254 that supports the lower end portion of the heat exchange portion 252 as shown in FIG.
The resin pipe 251 has a rectangular or square cross section and is supported so that its cylinder axis is parallel. The resin pipe 251 is arranged with its cylinder axis parallel to the vertical direction.
As shown in FIGS. 6A and 6B, the upper support portion 253 is disposed at the downstream end of the second passage 262 and has a communication hole 253a extending in the left-right direction and communicating with the inside of the resin pipe 251. It has a rib portion 253b extending downward from the periphery of the communication hole 253a. In FIGS. 6A and 6B, the lead lines of the second passage 262 are indicated by arrows to distinguish them from the first frame 72 that constitutes the passage.
The lower support portion 254 is arranged at the upstream end of the third passage 263 and, like the upper support portion 253, has communicating holes and rib portions. A plurality of resin pipes 251 arranged side by side in the front and rear are supported by the rib portions of the upper support portion 253 and the lower support portion 254 in the front-rear direction and the left-right direction.

(2-6) Circulation Path The first passage 261 is composed of the front surface of the first frame 72 and the first passage cover 264 . The second passage 262 is composed of the rear surface of the first frame 72 and the second passage cover 265 . The third passage 263 is composed of the rear surface of the first frame 72 and the third passage cover 266 .
As shown in FIGS. 6A and 6B, the second passage cover 265 has a U-shape in a cross section perpendicular to the left-right direction, and the opening side thereof faces the first frame 72 side. installed. The second passage cover 265 is arranged over the outer peripheral side of the receiver 222 and the upper side of the heat exchanger 25, as shown in FIG. 8(a). The air moving inside the second passage 262 is schematically indicated by an arrow A in FIG. 8(a).
The second passage 262 is arranged around the evaporator 42, as shown in FIGS. 6(a) and 6(b). That is, the air supplied from the dehumidifying rotor 21 to the heat exchanger 25 passes through the periphery of the evaporator 42 facing the dehumidifying rotor 21 and the heat exchanger 25 . Thereby, the air supplied to the heat exchanger 25 is cooled by the evaporator 42 .
The second passage 262 has a first space 262a positioned above the heat exchanger 25 and a second space 262b positioned above the evaporator 42, as shown in FIG. 6(a). In other words, the second passage 262 is configured to protrude from above the heat exchanger 25 to above the evaporator 42 . In addition, the overhanging portion is close to the upper side of the evaporator 42 and overhangs.

(3) Blower Unit As shown in FIG. 2, the blower unit 3 is arranged upstream of the outlet 11c in the flow path from the suction port 11b to the outlet 11c. Here, it is provided below the discharge port 11c. As shown in FIGS. 4 and 5, the blower 3 includes a blower cover 31 attached to a blower frame 73 facing the dehumidifying rotor 21, a fan 32 provided on the side of the suction port 11b of the blower cover 31, and a blower cover. A motor 33 is provided on the opposite side of the suction port 11b in 31 and drives the fan 32 to rotate. The blower cover 31 is attached to the blower frame 73 on the side opposite to the suction port 11b, and the blower frame 73 has a through hole 732 for communicating the air from the suction port 11b to the blower portion 3 side.

(4) Second Dehumidification Section (4-1) Outline The second dehumidification section 4 includes at least a compressor 41 , an evaporator 42 and a radiator 43 . In other words, the second dehumidifying section 4 is a compressor-type (refrigerating cycle type) dehumidifying section that uses a refrigerating cycle. The dehumidifier X of the present embodiment is of a so-called hybrid type including a desiccant-type first dehumidifier 2 and a compressor-type second dehumidifier 4 .
The second dehumidifying section 4 includes a pressure reducer 44 in addition to the compressor 41, the evaporator 42, and the radiator 43, and these are connected by a pipe 45 through which the heat medium flows. As a result, the heat medium flows out of the compressor 41, passes through the radiator 43, the pressure reducer 44, and the evaporator 42, flows into the compressor 41, and circulates. Note that, for example, a hydrofluorocarbon (HFC) refrigerant can be used as the heat medium.

Dehumidification of the second dehumidifier 4 is performed as follows. First, the moisture in the air sucked from the suction port 11 b is condensed into water as heat is taken away (cooled) by the heat medium when passing through the evaporator 42 , and stored in the tank 81 . The heat medium in the evaporator 42 is sent to the compressor 41 in a state of being vaporized by the passing air, is compressed by the compressor 41 and becomes high pressure and high temperature, and is sent to the radiator 43 .
The low-temperature air that has passed through the evaporator 42 takes heat from the heat medium (raised in temperature) by the radiator 43 and is discharged from the discharge port 11c. The heat medium in the radiator 43 is liquefied by passing air and sent to the decompressor 44 , reduced in pressure by the decompressor 44 to low pressure and low temperature, and sent to the evaporator 42 .

(4-2) Compressor The compressor 41 is composed of a compressor. Compressor 41 compresses the heat medium that has flowed from evaporator 42 through pipe 411 (see (a) and (b) in FIG. 3). The compressed heat medium flows out to the radiator 43 through the piping 412 (see (a) and (b) of FIG. 3). Compressor 41 is a heavy structure and is arranged in the lower part of housing 1 .

(4-3)
The evaporator 42 is arranged on the suction port 11b side of the housing 1 and exchanges heat (cools) the air passing through the evaporator 42 with a low-temperature heat medium. The evaporator 42 has a pipe material 421 made of a material with good thermal conductivity (for example, copper or aluminum), and a heat medium flows inside the pipe material 421 . The pipe material 421 is configured in a zigzag shape to improve the efficiency of heat exchange with the air passing through the evaporator 42 . Here, the pipe member 421 extends in the left-right direction, and is reversed multiple times to the opposite side at the ends in the left-right direction.
The evaporator 42 has a holding member 422 that holds a zigzag pipe material 421 . The holding member 422 is composed of a thin plate material (for example, metal, resin, etc.) that is connected in the vertical direction at a plurality of locations extending in the horizontal direction of the pipe material 421 . 3A, 3B, 4 and 5, the holding member 422 is shown as a single plate.
The evaporator 42 is arranged on the upstream side of the heat exchanger 25 of the first dehumidifying section 2, that is, on the side of the suction port 11b in the flow path from the suction port 11b to the discharge port 11c. Thereby, the air cooled by the evaporator 42 is supplied to the heat exchanger 25, and the heat exchange efficiency of the heat exchanger 25 can be improved. In particular, since the evaporator 42 is arranged close to the heat exchanger 25, the air cooled by the evaporator 42 is directly supplied to the heat exchanger 25, so that the heat exchange efficiency can be further improved. . Here, the close arrangement means that the distance (gap) between the evaporator 42 and the heat exchanger 25 is in the range of 0 mm or more and 10 mm or less.

(4-4) Radiator The radiator 43 is arranged on the housing 1 on the outlet 11c side. In other words, the radiator 43 is arranged downstream of the first dehumidifying section 2 in the flow path from the suction port 11b to the discharge port 11c. That is, the radiator 43 and the evaporator 42 are provided so as to sandwich the first dehumidifying section 2 .
The radiator 43 exchanges heat (heats) air passing through the radiator 43 with a high-temperature heat medium. Like the evaporator 42 , the radiator 43 includes a pipe material 431 made of a material with good thermal conductivity (for example, copper or aluminum), and a heat medium flows inside the pipe material 431 . The pipe material 431 is formed in a zigzag shape in order to increase the efficiency of heat exchange with the air passing through the radiator 43 . Here, the pipe material 431 extends in the left-right direction, and is reversed multiple times to the opposite side at the ends in the left-right direction. The radiator 43 is provided with the two zigzag-shaped pipe members 431 stacked in the front-rear direction.
The radiator 43 has a holding member 432 that holds a zigzag pipe material 431 . The holding member 432 is composed of a thin plate material (for example, metal, resin, or the like) that is vertically connected at a plurality of locations extending in the horizontal direction of the pipe material 431 . 3A, 3B, 4 and 5, the holding member 432 is shown as a single plate.
The radiator 43 is arranged downstream of the dehumidifying rotor 21 of the first dehumidifying section 2, that is, on the side opposite to the suction port 11b in the flow path from the suction port 11b to the discharge port 11c.

(4-5) Decompressor The decompressor 44 is composed of, for example, an expansion valve, a capillary tube, etc. Here, an expansion valve is used. The decompressor 44 decompresses the heat medium flowing from the radiator 43 through the pipe 441 (see (a) and (b) of FIG. 3). The pressure-reduced heat medium flows out to the evaporator 42 through a pipe 442 (see (a) and (b) of FIG. 3).

(5) Operation Unit As shown in FIGS. 4 and 5, the operation unit 5 includes a plurality of operation means 51 for the user to operate the apparatus, and a plurality of operation means 51 for displaying the operation status of the apparatus and the user's operation details. and a display means 52 are provided on an operation board 54 on the rear surface of the base 53 . The operating means 51 is supported by a base 53 and the base 53 is attached to the housing 1 . In the attached state, the operating means 51 and the display means 52 are exposed on the upper surface of the housing 1 as shown in FIGS. 1(a) and 1(b).

(6) Circuit unit The circuit unit 6 is a drive for driving the first dehumidification unit 2, the blower unit 3, the second dehumidification unit 4, the display means 52 of the operation unit 5, etc. from the commercial power supply received from the electric cord 62. It has a power supply section that generates electric power, and a control section that controls the first dehumidification section 2, the blower section 3, the second dehumidification section 4, the display means 52 of the operation section 5, etc. according to the user's operation. The power supply unit and the control unit are configured by mounting a plurality of electronic components on a circuit board, and housed in a circuit case 61 as shown in FIGS. 4 and 5 .

(7) Frame Description will be made mainly with reference to FIG.
The frame 7 is composed of, for example, a base frame 71, a first frame 72, and a blower frame 73. As shown in FIG.
(7-1) Base Frame The base frame 71 is arranged on the lower side in the housing 1 and has a vertical plate portion 711 and a horizontal plate portion 712 . The vertical plate portion 711 extends in the vertical direction. Inside the housing 1, the tank 81 is arranged on the front side of the vertical plate portion 711, and the compressor 41 is arranged on the rear side (FIGS. 3A and 3B). b) see). The vertical plate portion 711 is curved in a "W" shape in a cross section perpendicular to the vertical direction. This can improve stability.
The horizontal plate portion 712 extends in the front, rear, left, and right directions, and the first frame 72 and the blower frame 73 are attached to the upper surface thereof in an upright state. The horizontal plate portion 712 includes a first frame fixing portion 713 for fixing the first frame 72, a lower evaporation support portion 714 for supporting the evaporator 42 of the second dehumidifying section 4 from below, and a blowing frame for fixing the blowing frame 73. It has a fixed portion 715 and a lower support portion 716 for supporting the radiator 43 of the second dehumidifying section 4 from below. The horizontal plate portion 712 has an inclined surface 717 at a portion located below the evaporator 42 and the first dehumidifying portion 2 , and the water cooled and condensed by the evaporator 42 and the heat exchanger 25 is removed from the tank 81 . lead to

(7-2) First Frame The first frame 72 is mainly for the first dehumidification section 2 (it is also a component that constitutes the circulation path 26 of the first dehumidification section 2). A dehumidification rotor 21, a heater 22, a drive motor 23, a blower 24, and a heat exchanger 25 are attached to the first frame 72, and a first passage cover 264, a second passage cover 265 and a third passage cover 266 are attached. A circulation path 26 is constructed.
A second passage cover 265 (see FIG. 4) is attached to the first frame 72, and the second passage cover 265 supports the inside of the inverted portion of the pipe material 421 of the evaporator 42 in the left-right direction from above. It has a portion 265a.
As a result, the evaporator 42 can be supported in a positioned state by using the first frame 72 that supports the first dehumidification section 2, the horizontal plate portion 712 to which the first frame 72 is attached, and the first passage cover 264. can be installed with a simple structure.

(7-3) Blower Frame The blower frame 73 is mainly for the blower section 3 (it is also a component that constitutes the discharge path 35 of the blower section 3). A blower cover 31 to which a fan 32 and a motor 33 are attached is attached to the blower frame 73, and together with the blower cover 31, an exhaust path 35 (see FIG. 2) connected to the exhaust port 11c is configured.
On the rear surface of the blower frame 73, there is provided a heat radiation position regulating portion 731 that restricts the position of the radiator 43 in the left-right direction, and a heat radiation upper support 75 that supports the radiator 43 from above is attached. The heat dissipation upper support member 75 has a heat dissipation upper support portion 751 that supports the laterally inner side of the inverted portion of the pipe material 431 (see FIGS. 4 and 5) of the radiator 43 . Note that the heat radiation upper support portion 751 faces the holding member 432 on the outer side in the left-right direction.
As a result, the radiator 43 can be supported in a positioned state by the blower frame 73 that supports the blower unit 3, the horizontal plate portion 712 to which the blower frame 73 is attached, and the support member 75 for heat radiation. It can be attached with a simple structure in which a supporting member 75 is provided for heat radiation.

3. The position of the evaporator will be described with reference to FIGS. 8(a) and 8(b).
The first dehumidification section 2 includes a heat exchanger 25 and a heater 22 (receiver 222) facing the dehumidification rotor 21 as shown in FIG. 8A when viewed from the suction port 11b side. That is, the dehumidifying rotor 21 has a first region facing the heater 22, a second region not facing the heater 22 and the heat exchanger 25, and a third region facing the heat exchanger 25 in this order in the circumferential direction. have.
The dehumidifying rotor 21 is rotationally driven from the first area through the second area toward the third area. In this case, the dehumidifying rotor 21 is heated in the first area, naturally cooled in the second area, and cooled by the air heat-exchanged (cooled) by the heat exchanger 25 in the third area. As a result, the temperature of the air passing through the third region is lowered, and moisture in the air is easily condensed and easily adsorbed by the dehumidifying rotor 21 .

The evaporator 42 of the second dehumidifying section 4 is larger than the heat exchanger 25 and arranged to cover the heat exchanger 25, as shown in FIG. 8(b). Thereby, the cooled air that has passed through the evaporator 42 is supplied to the heat exchanger 25, and heat exchange efficiency can be improved. Moreover, although the temperature of the heat-exchanged air rises, the temperature is lower than that of the heat-exchanged air without the evaporator 42, so that the moisture adsorption rate of the dehumidification rotor 21 can be increased.
The evaporator 42 is arranged parallel and close to the heat exchanger 25 . Thereby, it is possible to prevent the air from the evaporator 42 toward the heat exchanger 25 from absorbing heat.
When viewed from the suction port 11b side, the evaporator 42 of the second dehumidifying section 4 is located at one end of the dehumidifying rotor 21 in the left-right direction (the left end in FIG. 8(b)), as shown in FIG. 8(b). ) is arranged on the other side in the left-right direction with respect to an imaginary line extending in the vertical direction passing through a position approximately 1/4 of the diameter. That is, approximately half of the second region of the dehumidifying rotor 21 in the left-right direction faces the evaporator 42 . As a result, the second area of the dehumidifying rotor 21 is cooled by the air from the evaporator 42, and the moisture adsorption rate can be improved compared to the case where the evaporator 42 is not provided.
In the embodiment, the heat exchanger 25 is arranged between the evaporator (cooling section) 42 and the dehumidification rotor 21. For example, the air passing through the evaporator (cooling section) 42 is From this point of view, the heat exchanger 25 includes an evaporator (cooling unit) 42 and a dehumidification rotor in the air flow path from the air sucked from the suction port 11b to the air discharged from the discharge port 11c. 21. All of the air cooled by the evaporator (cooling unit) 42 may be supplied to the heat exchanger, or part of the cooled air may be supplied.

Although the embodiment has been described above, the present invention is not limited to this embodiment, and may be modified as follows. Further, the embodiment may be combined with the modified example, or the modified examples may be combined with each other.
In addition, examples not described in the embodiments and modifications, and design changes that do not deviate from the scope of the present invention are also included in the present invention.

<Modification>
1. Housing The housing 1 only needs to have the suction port 11b and the discharge port 11c, and the positions thereof are not particularly limited. However, the dehumidifying section (first dehumidifying section 2) and the cooling section (evaporator 42) must be positioned on a flow path through which the air sucked from the suction port 11b is discharged from the discharge port 11c.

2. Cooling Unit (1) Position The cooling unit (the evaporator 42 of the second dehumidifying unit 4) is larger than the heat exchanger 25 when viewed from the suction port 11b, and is arranged so as to cover the heat exchanger 25. , may be smaller than the heat exchanger 25 . Also in this case, the air supplied to the heat exchanger 25 is cooled, and the heat exchange efficiency can be improved. That is, the size and position of the cooling section are not particularly limited as long as the air supplied to the heat exchanger 25 can be cooled.
However, by making it larger than the heat exchanger 25 and covering the heat exchanger 25 as in the embodiment, high heat exchange efficiency can be obtained. Further, the heat exchange efficiency can be enhanced by arranging the cooling part (42) on the side of the suction port 11b with respect to the heat exchanger 25. FIG.
The suction port 11b, the cooling section (42), the heat exchanger 25, and the dehumidification rotor 21 are provided so as to line up in the front-rear direction. As long as there is a cooling part on the air flow path to the vessel, it is not limited to the front-rear direction.

(2) Configuration The cooling unit (42) may cool the air supplied to the heat exchanger 25, and may be anything other than the evaporator 42 of the second dehumidifying unit 4. For example, cooling using a Peltier element may be used. .
Although the HFC refrigerant is used as the heat medium that flows inside the evaporator 42 , for example, a cooling section (without a radiator or the like) that circulates water or air in the pipe material 421 may be used.
The evaporator 42 as a cooling part extends in a direction orthogonal to the cylinder axis direction of the resin pipe 251 of the heat exchanger 25 and is configured in a zigzag shape with intervals in the cylinder axis direction. It may be in a zigzag shape extending in the direction of the cylinder axis and having intervals in the direction orthogonal to the direction of the cylinder axis.
The evaporator 42 as a cooling part is provided in a single zigzag shape with a single pipe material 421 on the side of the suction port 11b with respect to the heat exchanger 25, but using a plurality of pipe materials, Multiple units may be provided for the heat exchanger 25 . When multiple pipes are used, the extending directions of the pipe materials may be the same or different.

3. Dehumidifier (first dehumidifier)
(1) Structure The structure of the first dehumidifying section 2 is not particularly limited, but the heat exchanger 25 is located on the suction port 11b side with respect to the dehumidifying rotor 21, and is located between the cooling section (42) and the dehumidifying rotor 21. Preferably in between. Thereby, the dehumidifying effect of the first dehumidifying section 2 can be enhanced.
(2) Dehumidifying rotor The dehumidifying rotor 21 of the first dehumidifying section 2 is rotationally driven from the first region facing the heater 22 toward the second region not facing the heater 22 and the heat exchanger 25. However, it may be driven to rotate from the second area toward the first area. However, the dehumidification function becomes higher in the direction from the first area to the second area.
(3) Second passage (second passage cover)
The second passage 262 (second passage cover 265) is provided above the heat exchanger 25 and protrudes in the direction (front-rear direction) in which the heater 22 and the dehumidification rotor 21 are aligned. In the passage (second passage cover), the air heading from the heater 22 to the heat exchanger 25 is cooled by the cooling portion (42) (by passing the air around the cooling portion), and the second passage ( The position of the second passage cover) is not particularly limited. In other words, the position cooled by the cooling unit may be any one of up, down, left, right, front and back with respect to the cooling unit. For example, it may be provided so as to pass through at least one of both sides of the heat exchanger in the left-right direction (the direction in which air flows from the suction port 11b toward the dehumidification rotor 21 and the direction perpendicular to the cylindrical axis of the resin pipe).

X dehumidifying device 1 housing 2 first dehumidifying section (dehumidifying section)
3 blowing section 4 second dehumidifying section

11a suction port

11b discharge port 21 dehumidifying rotor 22 heater 23 drive motor 24 blower 25 heat exchanger 41 compressor 42 evaporator (cooling section)
43 radiator 44 decompressor

Claims

a housing having an inlet and an outlet;
a dehumidification unit including a dehumidification rotor that dehumidifies moisture in the air sucked from the suction port;
A dehumidifying device comprising: a cooling section that cools air directed from the suction port toward the dehumidifying section.
The dehumidification unit
a heater for heating the dehumidification rotor;
a drive motor that rotates the dehumidification rotor;
a heat exchanger that exchanges heat with the air that has been heated by the heater and has passed through the dehumidification rotor,
The dehumidifier according to claim 1, wherein the heat exchanger is provided between the dehumidifying rotor and the cooling section.
The dehumidifying rotor is driven to rotate from a first region facing the heater toward a third region facing the heat exchanger via a second region not facing the heater and the heat exchanger. The dehumidifier according to claim 2.
The dehumidifier according to claim 2 or 3, wherein the cooling unit is provided so as to face and be close to the heat exchanger.
5. Any one of claims 2 to 4, wherein the air heated by the heater and supplied from the dehumidification rotor to the heat exchanger passes through a peripheral portion of the cooling section facing the dehumidification rotor. dehumidification device according to the paragraph.
A refrigerating cycle type second dehumidifying unit comprising a compressor, an evaporator, and a radiator is provided in the housing,
The dehumidifier according to any one of claims 1 to 5, wherein the cooling section is the evaporator of the second dehumidifying section.
The dehumidifier according to claim 6, wherein the dehumidifying section is arranged between the evaporator and the radiator.
The dehumidifier according to claim 6 or 7, wherein the distance between the evaporator and the dehumidifying section is smaller than the distance between the dehumidifying section and the radiator.