JP2021192760A - Clothes dryer - Google Patents

Abstract

To provide a highly safe clothes dryer that can reduce ignition proclivity even if a flammable refrigerant leaks out.SOLUTION: In a clothes dryer according to the present invention, an evaporator 31 and a condenser 32 constituting a heat pump 35 have joint portions 31a3, 32a3 in which one end of a straight portion 31a1 and a first folded portion 31a2 are joined by brazing and one end of a straight portion 32a1 and a first folded portion 32a2 are joined by brazing among the refrigerant pipes through which the refrigerant flows, wherein the joint portions are arranged in a ventilation path 50 provided outside a circulation air passage 20, and the straight portions 31a1, 32a1 and second folded portions 31a4, 32a4 provided with fins 31b and 32b are arranged in the circulation air passage 20.SELECTED DRAWING: Figure 3

Description

Embodiments of the present invention relate to a clothes dryer.

For clothes dryers equipped with heat pumps, the use of flammable refrigerants with a small ozone depletion potential and a low global warming potential is being considered due to growing concern about environmental problems.

Since the amount of refrigerant enclosed in the heat pump of the clothes dryer is small, even if the refrigerant leaks from the heat pump, it is difficult for the inside of the clothes dryer housing to reach the ignition limit concentration, and there is almost no possibility of developing a fire. Although not available, various safety measures have been conventionally proposed as safety measures in the event that the refrigerant leaks (see, for example, Patent Document 1 below).

In Patent Document 1 below, a compressor and a throttle of a heat pump, and a connection pipe connecting them to an evaporator and a condenser are covered with a cover, and a refrigerant detector arranged inside the cover leaks flammable refrigerant. When it is detected, the compressor is stopped and the exhaust blower that discharges the leaked refrigerant to the outside is operated.

However, in Patent Document 1 below, when the flammable refrigerant leaks from the heat pump, it accumulates inside the cover. Therefore, when the concentration of the flammable refrigerant inside the cover cannot be correctly detected due to a failure or error of the refrigerant detector, the ignition limit concentration is reached. May reach.

Japanese Unexamined Patent Publication No. 2009-207673

The embodiment of the present invention has been made in consideration of the above circumstances, and even if the flammable refrigerant leaks out in the clothes dryer provided with the heat pump using the flammable refrigerant, even if the flammable refrigerant leaks out. It is an object of the present invention to provide a highly safe clothes dryer capable of suppressing ignition.

The clothes dryer of one embodiment includes a drying chamber for accommodating clothes, a circulating air passage having both ends connected to the drying chamber, and a blower for circulating air between the drying chamber and the circulating air passage. A condenser that heats the air in the circulating air passage, an evaporator that cools and dehumidifies the air in the circulating air passage, a compressor that compresses a flammable refrigerant and supplies it to the condenser, and the condenser. In a clothes dryer provided with a heat pump in which a depressurizing means for depressurizing the combustible refrigerant that has passed through the refrigerant is connected by a refrigerant transport pipe, and a housing including the drying chamber, the circulating air passage, the blower, and the heat pump. The housing is provided on the base plate on which the condenser, the evaporator, and the compressor are placed, an outer box that covers the upper part of the base plate, and the outside of the circulation air passage. The condenser and the evaporator include a refrigerant pipe through which a refrigerant flows, and fins attached to the refrigerant pipe, and the refrigerant is provided with a ventilation path communicating with the outside through the first opening. The pipe is formed by joining a plurality of straight portions, a first folded portion provided so as to connect one end of the plurality of straight portions, and one end of the plurality of straight portions and the first folded portion by brazing. It is formed in a serpentine shape including a joint portion and a second folded portion integrally provided at the other end of the plurality of straight portions, and the joint portion is located in the ventilation path, and the plurality of straight portions and the said portion. The fin and the second folded portion are located in the circulating air passage.

Front view showing a clothes dryer according to an embodiment in which the door is removed. Longitudinal side view showing the schematic configuration of the clothes dryer of FIG. A-A cross-sectional view of FIG. Rear view showing the appearance of the clothes dryer of FIG. BB sectional view of FIG. Cross-sectional view of the heat exchange part provided in the clothes dryer of the modified example

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The following embodiments are examples, and the scope of the invention is not limited thereto. Various omissions, substitutions, and changes can be made to the following embodiments without departing from the gist of the invention. The following embodiments and modifications thereof are included in the scope of the invention described in the claims and the equivalent scope thereof.

In the following description, the left-right direction, the front-back direction, and the up-down direction indicate the direction when the washing / drying machine is viewed from the front, and the left-right direction corresponds to the width direction of the washing / drying machine. Further, right, left, top, bottom, front, and back indicate the position and side when the washer / dryer is viewed from the front unless otherwise specified.

The present embodiment relates to a drum-type washer-dryer that also serves as a washing machine and a clothes dryer, and is provided in a substantially rectangular box-shaped outer box 1a and a lower portion thereof, as shown in FIGS. 1 and 2. The housing 1 is composed of the base plate 1b and the base plate 1b.

On the front surface of the outer box 1a, a laundry entrance / exit 3 having an opening is formed at a substantially central portion thereof. The laundry entrance / exit 3 is opened / closed by a door 4 rotatably provided in the lateral direction via a hinge (see FIG. 2).

Inside the housing 1, as shown in FIG. 2, a water tank 8, a circulation air passage 20 connected to the water tank 8, and a blower 27 for circulating air between the water tank 8 and the circulation air passage 20 are provided. A heat pump 35 for dehumidifying and heating the air in the circulation air passage 20 and a ventilation path 50 are provided on the outside of the circulation air passage 20 as shown in FIG.

The water tank 8 has a substantially cylindrical shape with an opening on the front surface and a closed rear surface, and the opening on the front surface communicates with the laundry entrance / exit 3. The water tank 8 is elastically supported on the base plate 1b via an elastic support mechanism in a horizontal axis state in which the axial direction thereof is oriented in the front-rear direction. In the water tank 8, water such as tap water is supplied from the outside of the machine from a water supply port provided at the top of the water tank 8 via a water supply valve, and water such as tap water is supplied from the outside of the machine through a drain valve (not shown) provided at the bottom of the water tank 8. It is configured so that the water in the water tank 8 can be drained to the outside of the machine.

In the water tank 8, a cylindrical rotary drum 14 having an open front surface and a closed rear surface is rotatably arranged. The rotary drum 14 is arranged in the water tank 8 in a state in which the axial direction is the horizontal axis in the front-rear direction. A large number of holes 15 that allow water and ventilation are formed in the peripheral wall of the rotating drum 14, and the inside of the rotating drum 14 communicates with the water tank 8 through these holes 15.

The front opening of the rotary drum 14 also communicates with the laundry inlet / outlet 3, and the rotary drum 14 accommodates the laundry loaded from the laundry inlet / outlet 3. The rotary drum 14 is rotationally driven by a drum motor 17 provided on the back surface of the water tank 8. The rotary drum 14 having such a configuration functions as a washing tub during the washing process, as a dehydration tub during the dehydration process, and as a drying tub (drying chamber) during the drying operation.

As shown in FIG. 2, the water tank 8 has an exhaust port 10 provided at the lower part of the front end of the water tank 8 and an air supply port 11 provided at a position slightly above the center of the rear surface of the water tank 8 to exhaust air. A circulation air passage 20 is connected to the port 10 and the air supply port 11.

As shown in FIGS. 2 to 4, the circulation air passage 20 includes an exhaust duct 22, a heat exchange section 30, and an air supply duct 26 in this order from the upstream side in the air circulation direction, and is connected to the exhaust port 10. The air in the water tank 8 is exhausted from the exhaust duct 22, and the air flowing through the circulation air passage 20 is supplied into the water tank 8 from the air supply duct 26 connected to the air supply port 11.

The exhaust duct 22 extends downward from the lower part of the front end of the water tank 8 from the exhaust port 10, and the tip end (lower end) of the exhaust duct 22 is connected to the opening 42a provided on the upper surface of the heat exchange portion 30.

The heat exchange unit 30 has a housing 40 mounted on the base plate 1b below the water tank 8, an evaporator 31 provided inside the housing 40, and the inside of the housing 40 separated from the evaporator 31 toward the downstream side in the air circulation direction. It comprises a condenser 32 arranged in.

As shown in FIGS. 3 and 5, the evaporator 31 and the condenser 32 provided in the heat exchange section 30 are both fin tube type having a refrigerant pipe and fins 31b and 32b attached to the refrigerant pipe. It is a heat exchanger.

The refrigerant pipe is made of a material having high thermal conductivity such as copper, and the first folded portion 31a2 folded back in a U shape so as to connect a plurality of straight portions 31a1, 32a1 and one end of the straight portions 31a1, 32a1. 32a2, joints 31a3, 32a3 in which one end of straight portions 31a1, 32a1 and first folded portions 31a2, 32a2 are joined by brazing, and straight portions 31a1 folded back in a U shape at the other ends of straight portions 31a1, 32a1. , 32a1 is integrally provided with the second folded portions 31a4 and 32a4, and is formed in a meandering shape.

A large number of fins 31b and 32b are attached side by side to the straight portions 31a1 and 32a1 of the refrigerant pipe at a predetermined pitch.

The inlet 32a5 of the refrigerant pipe of the condenser 32 is inserted and fitted with the outlet of the refrigerant transport pipe 36 connected to the discharge side of the compressor 33 by making the diameters of the respective ends larger or smaller, and then to the outside. The exposed end is joined by brazing, and the outlet 32a6 of the refrigerant pipe of the condenser 32 is joined to one end of the refrigerant transport pipe 37 by brazing in the same manner as described above.

The refrigerant transport pipe 37 is a refrigerant transport pipe 37 that connects the condenser 32 and the evaporator 31, and is composed of a capillary tube, an electromagnetic valve whose opening degree can be adjusted, and the like in the middle, and depressurizes the refrigerant that has passed through the condenser 32. A decompression unit 34 is provided.

The inlet 31a5 of the refrigerant pipe of the evaporator 31 is joined to the other end of the refrigerant transport pipe 37 by brazing in the same manner as described above. Further, a refrigerant transport pipe 38 connected to the suction side of the compressor 33 is joined to the outlet 31a6 of the refrigerant pipe of the evaporator 31 by brazing in the same manner as described above.

As described above, the evaporator 31 and the condenser 32 are connected to the compressor 33 and the decompression unit 34 by the refrigerant transport pipes 36, 37, 38 in an annular shape to form the heat pump 35.

The housing 40 includes a lower member 41 that opens upward, a lid 42 that closes the upper surface opening of the lower member 41, and a sealing member 43 that seals between the lower member 41 and the lid 42.

The lower member 41 is a container-shaped member that is flat in the vertical direction, and a space for providing an evaporator 31 and a condenser 32 is formed therein. The lower member 41 partitions the air passage through which the air in the circulation air passage 20 flows between the lower member 41 and the lid body 42, and receives the dehumidified water generated by the evaporator 31. The bottom surface 41a of the lower member 41 is gently inclined so as to be lowered toward the rear, and the dehumidified water generated in the evaporator 31 is guided to the drainage means 44 provided on the back surface 1c of the outer box 1a for drainage. It is designed to do.

Such a housing 40 is placed on the base plate 1b so as to be close to one side (for example, the left side) in the left-right direction of the space formed between the water tank 8 and the base plate 1b. An opening 42a for connecting the lower end of the exhaust duct 22 is provided at the front end of the lid 42, an air supply duct 26 is connected to the rear end of the lower member 41, and air is directed rearward inside the housing 40. It is designed to flow.

Although not shown in detail, the compressor 33 includes a compression mechanism unit and a motor unit, and the motor unit is supplied with a drive power source having a set frequency by an inverter power source. As a result, the motor unit rotates at a rotation speed corresponding to the supplied frequency, and drives the compressor 33 at a desired set output.

The compressor 33 and the decompression unit 34 are arranged at positions apart from the heat exchange unit 30 in the heat exchange unit 30 in a direction perpendicular to the direction in which air flows. That is, the compressor 33 and the decompression unit 34 are spaces formed between the water tank 8 and the base plate 1b, and are arranged on the side (right side) of the heat exchange unit 30.

A hydrocarbon-based flammable refrigerant such as isobutane (hereinafter, also referred to as a refrigerant) is sealed in the heat pump 35, and the refrigerant circulates due to the operation of the compressor 33, so that the evaporator 31 is inside the housing 40. The air flowing through the refrigerator is cooled and dehumidified, and the condenser 32 heats the air dehumidified by the evaporator 31.

On the downstream side of the heat exchange unit 30 in the air circulation direction, the sirocco fan 27a is connected to the air supply port 11 of the water tank 8 via the air supply duct 26, and the sirocco fan 27a is connected to the heat exchange unit 30 and the air supply duct 26. It is provided.

The sirocco fan 27a constitutes the blower 27 together with the fan motor 27b provided in the space formed between the water tank 8 and the base plate 1b. The fan motor 27b is arranged on the rear side (rear right side) of the heat exchange portion 30 so that the rotating shaft 27c extends rearward. The rotating shaft 27c of the fan motor 27b penetrates the back surface 1c of the outer box 1a, and the sirocco fan 27a is attached to the tip thereof. When the sirocco fan 27a receives power from the fan motor 27b and rotates, the heat exchange unit 30 sucks in the dehumidified and heated air and discharges it to the air supply duct 26.

As shown in FIGS. 3 and 4, the air supply duct 26 is provided from a flow path extending in the vertical direction formed between the duct cover 28 to which the back surface 1c of the outer box 1a is attached and the back surface 1c of the outer box 1a. Become. The air discharged from the sirocco fan 27a flows upward in the air supply duct 26 and is supplied into the water tank 8 and further into the rotary drum 14 through the introduction port 29 provided on the back surface 1c of the outer box 1a. To.

The ventilation path 50 is a space formed outside the water tank 8 and the circulation air passage 20 inside the housing 1, and the circulation air passage 20 in which the air flow to and from the circulation air passage 20 is substantially blocked. It is a space independent of.

The ventilation path 50 is provided with a compressor 33 and a decompression unit 34 constituting the heat pump 35, and a fan motor 27b of the blower 27 inside the ventilation path 50. Further, the ventilation path 50 includes a first opening 51 provided so as to vertically penetrate the base plate 1b on the side (right side) of the heat exchange portion 30 provided with the compressor 33 and the fan motor 27b. A second opening 52 (see FIG. 4) provided above the first opening 51 on the back surface 1c of the outer box 1a is provided, and the housing 1 is provided via the first opening 51 and the second opening 52. It communicates with the external space of.

In such a ventilation path 50, an updraft is generated by the heat generated from the compressor 33 and the fan motor 27b during the operation of the heat pump 35 and the blower 27, and the air outside the housing 1 is taken in from the first opening 51. Air taken in from the outside of the housing 1 circulates in the ventilation path 50 so as to be discharged to the outside of the housing 1 from the second opening 52.

In FIG. 3, reference numeral 53 is a motor driving capacitor provided in the ventilation path 50, and supplies driving power to the drum motor 17 that rotates the rotating drum 14. The capacitor 53 is housed in an explosion-proof case with the lead wire connected to the drum motor 17 soldered, that is, the charging portion facing downward, and the base plate 1b is located on the side of the heat exchange portion 30. It is fixed to. A stand rising upward from the base plate 1b between the connection terminal as a charging part of the capacitor 53, which is an electric component provided on the base plate 1b, and the joint portions 31a3, 32a3 of the evaporator 31 and the condenser 32. Is provided with 54. The countersunk 54 projects upward from the capacitor 53 and partitions the capacitor 53 from the joints 31a3 and 32a3.

In the washer-dryer having the above configuration, in the evaporator 31 and the condenser 32, the first folded portions 31a2, 31a2 and the joint portions 31a3, 31a3 are located in the ventilation path 50, and the straight portions 31a1, 32a1 and the second folded portion 31a1, 32a1 are folded. The portions 31a4 and 32a4 and the fins 31b and 32b are provided so as to be located in the heat exchange portion 30 constituting the circulation air passage 20.

Specifically, inside the housing 40 partitioned by the lower member 41 and the lid 42, among the evaporator 31 and the condenser 32, the straight portions 31a1, 32a1, the second folded portions 31a4, 32a4 and the fins 31b, 32b is housed, and the first folded-back portions 31a2, 32a2 and the joining portions 31a3, 32a3 are housed in a water receiving portion 45 provided adjacent to the outside of the housing 40.

As shown in FIG. 5, the water receiving portion 45 includes a bottom surface 45a provided below the first folded portions 31a2, 32a2 and the joint portions 31a3, 32a3, and a peripheral wall 45b rising upward from the peripheral edge thereof, and has an opening portion upward. It has the shape of a container in which 45c is formed.

The water receiving unit 45 is provided adjacent to one side of the heat exchange unit 30 provided with the compressor 33 and the decompression unit 34 so as to be located between the compressor 33 and the decompression unit 34 and the heat exchange unit 30. It is partitioned from the inside of the housing 40 by a partition wall 46 extending parallel to the air circulation direction in the housing 40.

One end of the straight line portions 31a1, 32a1 penetrates through the partition wall 46 that separates the water receiving portion 45 and the housing 40 in an airtight state, and the first folded portions 31a2, 32a2 and the joint portion 31a3, 32a3 receive from the partition wall 46. It protrudes into the water portion 45. Further, a lid 42 is provided at the upper end of the partition wall 46 with the sealing member 43 interposed therebetween. As a result, the inside of the water receiving portion 45 communicates with the ventilation path 50 through the opening 45c provided on the upper surface, but a space is formed from the inside of the housing 40 in which the air flow is substantially blocked. ing.

In this embodiment, in addition to the first folded portions 31a2, 32a2 and the joining portions 31a3, 32a3, the inlets 31a5 and outlets 31a6 of the refrigerant pipe of the evaporator 31 and the inlets 32a5 and outlets 32a6 of the refrigerant pipes of the condenser 32 are used. A joint portion with the refrigerant transport pipes 36, 37, 38 is also provided inside the water receiving portion 45.

In the washer / dryer of the present embodiment as described above, the first folded portions 31a2, 31a2 and the joint portions 31a3, 31a3 are located in the ventilation path 50, and the straight portions 31a1, 32a1, the second folded portions 31a4, 32a4 and the fins 31b. , 32b is provided with an evaporator 31 and a condenser 32 so as to be located in the heat exchange section 30 constituting the circulation air passage 20. The joint portions 31a3, 32a3 joined by brazing have a higher possibility of refrigerant leakage than other parts of the refrigerant pipe and the refrigerant transport pipes 36, 37, 38, but in the washing / drying machine of the present embodiment, the possibility of refrigerant leakage occurs. Even if the flammable refrigerant leaks from the joints 31a3 and 32a3, it is difficult for the flammable refrigerant to enter the circulation air passage 20 where an ignition source such as static electricity is likely to be generated, and ignition can be suppressed.

In the present embodiment, since the first opening 51 is provided in the base plate 1b on which the heat exchange unit 30 and the compressor 33 are placed, if the flammable refrigerant has a higher specific gravity than air, it leaks out. The refrigerant is discharged from the first opening 51 to the outside of the housing 1 through the base plate 1b.

Further, when the heat pump 35 and the blower 27 are operating, the flammable refrigerant can be discharged to the outside of the housing 1 by the updraft generated in the ventilation path 50 by the heat of the compressor 33 and the fan motor 27b.

Further, in the present embodiment, since the water receiving portion 45 is provided so as to cover the lower part of the joint portions 31a3, 32a3 and the first folded portions 31a2, 32a2, the first folded portion of the evaporator 31 is provided during the operation of the heat pump 35. Even if the dew condensation water adhering to the 31a2 and the joint portion 31a3 drips down, it is possible to prevent the dew condensation water from reaching the fan motor 27b, the compressor 33, the condenser 53, etc. mounted on the base plate 1b. Moreover, since the water receiving portion 45 is provided with the opening 45c on the upper side, even if the flammable refrigerant leaks from the joint portions 31a3 and 32a3, the housing 1 passes through the ventilation path 50 from the opening 45c. It can be discharged to the outside.

Further, in the present embodiment, since the partition wall 46 that separates the water receiving portion 45 and the housing 40 of the heat exchange portion 30 is provided with the sealing member 43 that seals the housing 40 and the water receiving portion 45, the housing is provided. The air flow can be blocked between the water receiving portion 45 and the water receiving portion 45. Therefore, the heat exchange section 30 may have a negative pressure during the operation of the blower 27, but even in such a case, the flammable refrigerant leaking from the joint sections 31a3 and 32a3 is transferred from the water receiving section 45 to the heat exchange section. It is possible to prevent entering 30.

Further, in the present embodiment, since a strut is provided between the capacitor 53 mounted on the base plate 1b and the joint portions 31a3 and 32a3 of the evaporator 31 and the condenser 32, leakage from the joint portions 31a3 and 32a3. Even if the emitted refrigerant flows along the base plate 1b, it is possible to prevent the flammable refrigerant from reaching the vicinity of the capacitor 53, which can be a source of ignition such as sparks, particularly the connection terminal of the capacitor 53, which is a charging unit.

(Change example 1)
In the above-described embodiment, the case where the joint portions 31a3, 32a3 and the first folded portions 31a2, 32a2 provided on the outside of the heat exchange portion 30 in the evaporator 31 and the condenser 32 are exposed to the ventilation path 50 has been described, for example. As shown in FIG. 6, the water receiving portion 45 may be filled with a porous body such as urethane foam, and the joint portions 31a3, 32a3 and the first folded portion 31a2, 32a2 may be covered with the porous body 55. In such a case, heat leakage from the joint portions 31a3, 32a3 and the first folded portions 31a2, 32a2 can be suppressed to improve the thermal efficiency in the heat exchange portion 30, and the refrigerant leaks from the joint portions 31a3, 32a3. Even so, the refrigerant is slowly discharged into the ventilation path 50, and it is possible to prevent the inside of the housing 1 from reaching the ignition limit concentration.

(Change example 2)
In the above-described embodiment, the washer / dryer not provided with the refrigerant detection sensor has been described, but for example, a gas sensor for detecting the refrigerant leaking from the heat pump 35 may be provided in the ventilation path 50 or the circulation air passage 20. ..

1 ... Housing, 1a ... Outer box, 1b ... Base plate, 8 ... Water tank, 10 ... Exhaust port, 11 ... Air supply port, 17 ... Drum motor, 20 ... Circulation air passage, 22 ... Exhaust duct, 26 ... Air supply Duct, 27 ... Blower, 27a ... Sirocco fan, 27b ... Fan motor, 30 ... Heat exchange part, 31 ... Evaporator, 31a1 ... Straight part, 31a2 ... First folding part, 31a3 ... Joint part, 31a4 ... Second folding part , 31b ... Fins, 32 ... Condenser, 32a1 ... Straight section, 32a2 ... First folding section, 32a3 ... Joining section, 32a4 ... Second folding section, 32b ... Fins, 33 ... Compressor, 35 ... Heat pump, 36 ... Refrigerant Transport pipe, 37 ... Refrigerant transport pipe, 38 ... Refrigerant transport pipe, 40 ... Housing, 41 ... Lower member, 42 ... Lid, 43 ... Sealing member, 45 ... Water receiving chamber, 45c ... Opening, 46 ... Bulk partition, 50 ... ventilation path, 51 ... first opening, 52 ... second opening, 53 ... condenser, 54 ... duct, 55 ... porous body

Claims (6)

A drying room for storing clothes and
A circulation air passage whose both ends are connected to the drying chamber,
A blower that circulates air between the drying chamber and the circulating air passage,
A condenser that heats the air in the circulating air passage, an evaporator that cools and dehumidifies the air in the circulating air passage, a compressor that compresses a flammable refrigerant and supplies it to the condenser, and the condenser. A heat pump in which a dehumidifying means for depressurizing the combustible refrigerant that has passed through is connected by a refrigerant transport pipe,
In a clothes dryer provided with the drying chamber, the circulating air passage, the blower, and a housing for accommodating the heat pump.
The housing is provided on the base plate on which the condenser, the evaporator and the compressor are placed, an outer box covering the upper part of the base plate, and outside the circulation air passage. It has a ventilation path that communicates with the outside through the first opening.
The condenser and the evaporator include a refrigerant pipe through which a refrigerant flows, and fins attached to the refrigerant pipe.
The refrigerant pipe has a plurality of straight portions, a first folded portion provided so as to connect one end of the plurality of straight portions, and one end of the plurality of straight portions and the first folded portion by brazing. It is formed in a meandering shape including a joined portion and a second folded portion integrally provided at the other ends of the plurality of straight portions.
A clothes dryer in which the joint portion is located in the ventilation path, and the plurality of straight portions, the fins, and the second folded portion are located in the circulation air passage. The clothes dryer according to claim 1, further comprising a water receiving portion that covers the lower part of the joint portion and is provided with an opening that communicates with the ventilation path above the joint portion. The circulation air passage is provided in the heat exchange portion in which the plurality of straight portions, the fins, and the second folded portion are housed, a partition partition separating the heat exchange portion and the water receiving portion, and the heat partition. The clothes dryer according to claim 2, further comprising a sealing member for sealing the exchange portion and the water receiving portion. Any one of claims 1 to 3 including a stand provided on the base plate so as to partition between a charging portion of an electric component placed on the base plate and a joint portion of an evaporator and a condenser. The clothes dryer described in. The clothes dryer according to any one of claims 1 to 4, wherein the joint portion is covered with a porous body. The circulation air passage includes a heat exchange section in which the plurality of straight sections, the fins, and the second folding section are housed.
The housing includes a second opening provided at a position higher than the first opening of the outer box.
The one according to any one of claims 1 to 5, wherein the ventilation path is provided on one side of the heat exchange portion, and the joint portion, the compressor, and the first opening portion are provided in the ventilation path. Clothes dryer.

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