JP2007135958A - Clothes drying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clothes drying machine facilitating installation of a heat pump for making up a clothes drying function in the machine and removal from the machine when the machine is scrapped. <P>SOLUTION: Components of the heat pump are integrated inside a unit case 21 having openings of a heated-air outlet 12 and a humid-air inlet 11 and set from the back of a washing machine case body 2, and a lower-part back plate 78 is fixed. A space between a heated-air duct 13 communicating with the inlet 11 opening to a water tank 3 and the outlet 12 is connected with an exhaust connection hose 33 formed of a flexible pipe material. A space between a humid-air duct 14 communicating with the outlet 12 and an intake connection pipe 32 communicating with a heated-air inlet is connected with an intake connection hose 49 formed of the flexible pipe material. Thereby a circulation passage of air for drying is formed. Because the number of screws used for fastening is reduced, installation/removal work of a heat pump unit 20 is enhanced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a clothes drying apparatus such as a clothes dryer or a washing dryer using a function of generating air for drying by a heat pump.

  As a means for generating drying air applied to the drying function of a clothes dryer or a washing dryer, a heater heating method in which air is heated by a heater is often used. Although the heater heating method has a simple structure and can be reduced in size, there are problems that it is necessary to separately provide a dehumidifying means and that power consumption is increased. In order to solve this problem, a heat pump type drying function using a heat pump cycle is applied to a clothes dryer or a washing dryer.

  The heat pump circulates the refrigerant compressed by the compressor from the radiator to the heat absorber, sends the heated air generated by the radiator toward the dry space containing the clothing, and the moisture absorbed air deprived of the clothing to the heat pump The clothes are dried and dehumidified by the heat absorber, and the clothes are dried by circulating the drying air that is heated again by the radiator and sent to the drying space.

As a washing and drying machine to which this heat pump type clothes drying apparatus is applied, the applicant of the present application has previously proposed a drum type washing and drying machine in which a drying function by a heat pump is added to a drum type washing machine (see Patent Document 1). ). In this drum-type washing and drying machine, a heat pump is disposed below or behind a water tank containing a rotating drum, and a drying process is performed by circulating air for drying between the heat pump and the water tank. The heat pump heats the drying air by the heat of the radiator generated by the circulation of the refrigerant. By supplying this heated air to the water tank, moisture is taken away from the clothes that are stirred by the rotation of the rotating drum, and the moisture absorption air Is returned to the heat pump, dehumidified by the hygroscopic device, and circulated and blown by the drying air to be supplied as heated air by the heater again.
JP 2005-052534 A

  However, clothes drying with a heat pump consumes less power for drying compared to the generation of heated air for drying with a heater and can be efficiently dried, but components such as compressors, radiators, heat absorbers, etc. A refrigerant pipe that circulates the refrigerant between the two and the air passage that circulates the drying air through the heat absorber and the heat radiator becomes complicated, and the volume occupied by the components for drying is complicated. There was a growing problem. Therefore, it is likely to increase the size of a clothes dryer or a washing dryer to which a heat pump type clothes drying apparatus is applied. In particular, in a washing / drying machine having a drying function added to the washing function, if a heat pump is configured in the washing machine housing in which the components as the washing machine are arranged, it is easy to increase the size of the washing / drying machine, and piping in the assembly process The number of work steps such as connection is likely to increase.

  In addition, since the heat pump uses a refrigerant, when the clothes dryer or the washing dryer to which the heat pump type clothes dryer is applied is discarded, it is required to remove the heat pump unit and collect the refrigerant. Refrigerant can use alternative chlorofluorocarbon instead of banned chlorofluorocarbon, and even if it leaks, it does not lead to ozone layer destruction, but it is subject to greenhouse gas regulations due to the high global warming potential of global warming. As always, it must be recovered and reused. Therefore, it is required that the heat pump unit can be easily removed without breaking the refrigerant pipe.

  The present invention has been devised in view of the above problems, and the object of the present invention is to integrate the components of the heat pump into a heat pump unit, making it easy to attach and detach, and taking out workability during assembly and disposal. The object is to provide an improved clothes drying apparatus.

  In order to achieve the above object, the present invention provides a connection between a heated air exhaust port of a heat pump and an intake port of a drying space containing clothes by a heated air blowing duct, and the exhaust port of the drying space and the moisture absorption of the heat pump. In the clothes drying apparatus, which connects the air intake port with a hygroscopic air blowing conduit, blows heated air from the heat pump to the drying space, and dries the clothes by air circulation returning the hygroscopic air from the drying space to the heat pump. The heat pump unit in which the constituent elements are integrated in a unit case, and the unit case is provided with the heated air exhaust port and the hygroscopic air intake port, and the heated air blowing duct and / or the hygroscopic air blowing duct is provided. And at least the heat pump unit side is formed of a flexible pipe, and the flexible pipe is connected to the heated air exhaust port and the hygroscopic air intake port. Characterized by comprising providing a connecting tube that continues to.

  According to the said structure, since the heat pump is comprised by the heat pump unit which integrated the component in the unit case, arrangement | positioning work can be performed easily. Further, the air duct connection between the heat pump unit and the drying space is completed simply by connecting the flexible pipe to the connection cylinder provided in the unit case. Therefore, the workability of assembly is good, and when the clothes drying apparatus is discarded, the workability of removing the heat pump unit and recovering the refrigerant is excellent. In addition, flexible tubing has a high degree of freedom in bending and detachment, has good workability in connecting and disconnecting pipes, has resistance to vibration from a dry space that generates vibration due to clothing agitation, etc. An effect of not conducting to the heat pump unit is also obtained.

  In the above configuration, the flexible tube is formed in an approximately cylindrical shape or an accordion shape by an elastic material, and the connection end is fitted to the connection tube and is crimped to the outer peripheral surface of the connection tube by the fastening member so as to be connected to the pipe. With this configuration, the workability of the pipe connection is good, and the connection can be easily released by releasing the fastening of the fastening member.

  According to the present invention, the heat pump is configured as a heat pump unit in which its components are integrated, and the pipe connection is made by connecting the flexible pipe to the unit case, so that the workability of assembling the clothes drying apparatus is good. When the clothes drying apparatus is discarded, the operation of removing the heat pump unit and collecting the refrigerant can be easily performed.

  The present embodiment shows an example in which the clothes drying apparatus using the heat pump system according to the present invention is applied to a drum type washing machine to constitute a drum type washing and drying machine. Many drum-type washing machines are installed in the washing machine casing, and the washing machine casing has a limited volume so that it can be installed in a limited area such as a waterproof pan. This is an application subject in which a heat pump type clothing drying device having a volume larger than that of the method is disposed in the washing machine casing, and it is difficult to attach it so that it can be easily attached and detached. Therefore, a clothes dryer having no washing function can be configured more easily.

  FIG. 1 mainly shows the configuration of the drying function in the drum-type washing / drying machine 1 according to the embodiment, and is displayed in a state modified from the actual form in order to show all the components of the drying function. . As shown in a side view in FIG. 2, the actual shape is formed in a curved surface whose front side is inclined from the vertical direction, and a door body 8 (see FIG. 1) for taking in and out the laundry is provided on the inclined curved surface. .

  In FIG. 1, a drum drive motor 4 is attached to the back surface of a water tank (drying space) 3 containing the rotary drum 5, and the rotary shaft 17 of the rotary drum 5 supported by a bearing 16 provided in the water tank 3 is described above. The water tank unit 10 is configured to be rotationally driven by the drum drive motor 4. The water tank unit 10 is supported by a suspension structure in the washing machine casing 2 at an inclination angle in which the rotation axis of the rotary drum 5 is upward on the front side. The water tank 3 and the rotating drum 5 are each opened on the front side, and the laundry can be taken in and out from the laundry entrance 6 of the rotating drum 5 by opening the door body 8 provided in the front of the washing machine housing 2. . When the door body 8 is closed, the bellows 143 provided at the opening of the water tank 3 is in close contact with the inner surface of the door body 8, so that the water tank 3 becomes a watertight and airtight space, and each process of washing, rinsing, dehydration and drying is performed. When running, water and air will not leak to the outside.

  The heat pump unit 20 is disposed so as to fit in the space formed in the lower part on the back side of the washing machine casing 2 by tilting the water tank unit 10 in the washing machine casing 2. The washing machine housing 2 has a limited volume so that the drum-type washing / drying machine 1 can be installed in an existing installation place with a limited area such as a waterproof pan. When the supporting suspension structure or the components for water supply, drainage, etc. are accommodated, the excess space is reduced, but the washing machine housing 2 is arranged without increasing the size by configuring the heat pump unit 20 compactly. Making it possible.

  FIG. 3 shows the structure of the heat pump unit 20 with the unit case 21 disassembled. A compressor 27, a heat absorber 28, and a radiator 29 are fixed in the bottom case 22 constituting the unit case 21. The bottom case 22 is fitted to the peripheral edge thereof, and the upper case 23 is attached and fixed with a screw 43 through a packing member, and the rear surface opening portion of the upper case 23 is interposed with a flow path lid 24 through the packing member. By fixing with the screw 46, a heated air blowing path 45 is formed to close the rear open portion and send heated air to the exhaust connection tube 59.

  If a lid is attached from the upper surface side of the upper case 23 in order to form the heated air blowing path 45, the space is limited in the front-rear direction due to the configuration of the drum type washing and drying machine 1. A relief part for screwing in the passage 45 is required, and unevenness for screwing is made in the air passage, a uniform air passage cannot be obtained, the cross-sectional area can be made large and small, smooth air The flow of can not be obtained. On the other hand, as shown in the above configuration, the flow path lid 24 is extended in the vertical direction with sufficient space by closing the rear surface opening portion of the upper case 23, and screwing portions are provided in the upper and lower portions of the heated air blowing path 45. In addition, the front and rear direction of the heated air blowing path 45 with little space can be formed on a substantially flat surface.

  As shown in a cross-sectional view in FIG. 4, an intake connection cylinder 32 is connected to a hygroscopic air intake 30 formed in the upper case 23, and an exhaust connection cylinder 59 communicates with the heated air exhaust 31 through a heated air blowing path 45. An exhaust connection hose (flexible tube material) 33 in which a flexible material is formed in a bellows structure is coupled to the slab. Further, as shown in the drawing, a water storage part 34 that receives the condensed water dripped from the heat absorber 28 is formed on the bottom surface of the bottom case 22, and the water dripped into the water storage part 34 is filtered through the dust filtration filter 35. It is stored in the water reservoir 34. This stored water is drained from the stored water drain port 36 by a drain pump (not shown) at regular intervals.

  As shown in FIGS. 3 and 4, the heat absorber 28 is inclined so that the upper part approaches the heat radiator 29, and the heat absorber 28 is inclined with respect to the heat radiator 29 with the upper part inclined toward the heat absorber 28. Each one side faces diagonally at a predetermined interval. A front wall surface 23 a of the upper case 23 constituting the unit case 21 is formed on the other surface side of the heat absorber 28 at a predetermined interval substantially parallel to the inclination of the heat absorber 28, and on the other surface side of the heat radiator 29. A rear wall surface 23b of the upper case 23 is formed in a substantially vertical direction from the vicinity of the lower portion of the radiator 29, and an intake space 38 serving as an air flow path between the heat absorber 28 and the front wall surface 23a and between the radiator 29 and the rear wall surface 23b, and An exhaust space 39 is formed. Both end portions of the heat absorber 28 and the radiator 29 are formed so that an air flow path from the intake space on the heat absorber 28 side to the exhaust space 39 on the radiator 29 side through the heat absorber 28 and the radiator 29 is formed. The heat absorbing / dissipating unit 40 held by the pair of side wall plates 37 is accommodated in the unit case 21.

  In this way, the flow path lid 24 is configured to close the rear open portion from the rear of the upper case 23, and the front wall surface 23 a of the upper case 23 is formed to be inclined so as to escape the water tank unit 10. By forming the rear wall surface 23b in a substantially vertical direction along the rear surface of the washing machine housing 2, the limited space can be utilized to the maximum, and the heat pump unit 20 is formed behind the water tank unit 10. It is possible to arrange in a limited space. Further, since both end portions of the heat absorber 28 and the heat radiator 29 are held by the pair of left and right side plates 37, the heat absorber 28 and the heat radiator 29 can be accommodated in the unit case 21 as the heat absorption / heat radiation unit 40. Incorporation into or removal from the case 21 can be facilitated, and workability can be improved.

  As shown in FIG. 4, the intake space 38 communicates with the hygroscopic air intake port 30, and the exhaust space 39 communicates with the heated air exhaust port 31. Further, as shown in FIG. 3, the refrigerant pipes 41 provided in the heat absorber 28 and the heat radiator 29 are respectively connected to the compressor 27 and have a function of a heat pump cycle as shown in FIG.

  The heat pump unit 20 having the above configuration is installed in the washing machine casing 2 from the back of the washing machine casing 2 as shown in FIGS. 6 and 7. The frame 58 that is the base of the washing machine housing 2 has a unit housing recess 79 formed on the back side so that the heat pump unit 20 can be housed and held. When the heat pump unit 20 is pushed in, the fitting protrusion 80 provided in the unit case 21 is fitted into the fitting hole 76a formed in the holding metal fitting 76 fixed to the unit housing recess 79, and the lower part of the heat pump unit 20 is The heat pump unit 20 is positioned and held on the frame 58 because it is fitted to the holding metal fitting 76.

  After the heat pump unit 20 is mounted, a lower back plate 78 is attached to the lower back of the washing machine housing 2. The lower back plate 78 is formed as a composite plate in which two metal plate materials 78b and a resin molded plate material 78a are combined. The lower back plate 78 covers portions protruding outward from the back surface of the washing machine housing 2 of the heat pump unit 20 and both side surfaces. The lower part of the back surface of the opened washing machine casing 2 is connected to both sides to be reinforced. The opening portion of the back surface of the washing machine housing is closed by attaching the back plate 70 (see FIG. 2) after all the assembly work into the washing machine housing 2 is completed, and at the same time the washing machine housing. The strength of 2 is ensured.

  The heat pump unit 20 mounted on the underframe 58 is connected electrically (connector connection) and drainage pipe. In addition, piping connection of the intake connection cylinder 32 and the exhaust connection hose 33 is made to the heat pump unit 20. The lower end side of the intake connection cylinder 32 which is formed in a square opening cross section corresponding to the squarely formed hygroscopic air intake opening 30 formed in the upper case 23 of the heat pump unit 20 is attached to the hygroscopic air intake opening 30 to form a circular opening cross section. Since the formed upper end side is formed by resin molding so as to be bent and rise to a position corresponding to the opening position of the hygroscopic air blowing duct (hygroscopic air blowing duct) 14, the hygroscopic air blowing duct 14 and the intake connection cylinder 32 is connected by a substantially cylindrical intake connection hose (flexible pipe material) 49 formed of a flexible material (for example, rubber material). The intake connection hose 49 is mounted so that both ends thereof are placed on the outer circumferences of the ends of the hygroscopic air blowing duct 14 and the intake connection cylinder 32, and are fastened and fixed by a hose band (fastening member) 77.

  The exhaust connection hose 33 that covers one end of the exhaust connection cylinder 59 and is fixed by the hose band 77 is formed of a flexible bellows structure of an elastic material (for example, rubber material), and the other end is the back surface of the water tank 3. It is connected to a heated air blow duct (heated air blow duct) 13 attached to the side. The heated air blowing duct 13 is formed in a cylindrical shape having a circular opening cross section in which one end communicates with the air inlet 11 that opens to the back surface of the water tank 3 and the other end rises from the back surface of the water tank 3. The pipe is easily connected by the operation of covering the portion with the other end of the exhaust connection hose 33 and fastening with the hose band 77.

  As described above, since the pipe connection between the heat pump unit 20 and the water tank unit 10 is simply the connection of the intake connection hose 49 and the exhaust connection hose 33, the operation can be easily performed. Since the intake connection hose 49 and the exhaust connection hose 33 have flexibility, they have a high degree of freedom of bending and detachment, and can flexibly cope with misalignment errors between connections. In addition, the water tank unit 10 vibrates with the rotation of the rotary drum 5, but the exhaust connection hose 33 is flexible due to the bellows structure and can flexibly cope with the vibration. Further, considering the pipe connection, the intake connection hose 49 is improved in workability if it is made of an elastic bellows structure like the exhaust connection hose 33, but the irregularity of the bellows structure is formed on the inner surface of the pipe. Since pressure loss in blowing is generated, the drying performance is lowered. Since the intake connection hose 49 is a connection pipe line between the hygroscopic air blowing duct 14 fixed to the main body side and the intake connection cylinder 32 of the heat pump unit 20, there is no need to consider vibration, and pressure loss and pipe connection work in ventilation Considering the characteristics, a substantially cylindrical hose made of a flexible material is suitable.

  With the pipe connection, the heat pump unit 20 and the water tank unit 10 are connected by the air supply path shown in FIGS. 1 and 5. An intake port 11 is formed on the back surface of the water tank 3, and an exhaust port 12 is formed on the side peripheral surface, and an exhaust connection is provided between the heated air blowing duct 13 connected to the intake port 11 and the heat pump unit 20. By connecting the exhaust port 12, the filter unit 60, and the hygroscopic air blowing duct 14 connected through the blower fan 15 and the heat pump unit 20 with the intake pump hose 49, the air of the drying air is connected. A circulation path is formed. In addition, in the drum type washing / drying machine 1 which concerns on this embodiment, when performing a drying process, the water tank 3 functions as a drying space.

  The rotating drum 5 has a plurality of through holes 9 formed on the side peripheral surface thereof so that water and air can freely flow through the water tank 3, and a plurality of small holes communicating with the intake port 11 on the bottom surface. 1 is provided, the dried heated air fed from the heat pump unit 20 through the exhaust connection hose 33 and the heated air blowing duct 13 is sucked as indicated by arrows in FIG. It can be introduced into the rotating drum 5 from the mouth 11. The heated air removes moisture from the clothes housed in the rotating drum 5 and becomes moisture-absorbing air. As shown by arrows in FIG. 1, the heated air passes through the through holes 9 and the laundry entrance 6 into the water tub 3 and from the exhaust port 12. The air is exhausted to the filter unit 60, the blower fan 15, and the hygroscopic air blower duct 14, and discharged from the intake connection hose 49 toward the intake connection cylinder 32 of the heat pump unit 20.

  The drum type washing / drying machine 1 configured as described above opens the door body 8 and puts laundry into the rotating drum 5, and supplies water and detergent into the water tank 3 from a water supply pipe (not shown) to start the washing process. As a result, the rotary drum 5 is rotated by the drum drive motor 4 and the agitation blades 7 provided at a plurality of locations on the inner peripheral surface lift the laundry upward and repeat the action of tapping washing to drop from above. Laundry is performed by.

  In the configuration of the present embodiment, as shown in FIG. 6, a pipe shutter 81 is provided in the vicinity of the air inlet 11 of the heated air blower duct 13, and detergent bubbles generated excessively in the water tank 3 in the washing process. Intrusion into the heated air blowing duct 13 from the intake port 11 can be prevented. When high-concentration detergent is mixed with foam by rotating the rotating drum 5, depending on the quality and amount of detergent, the amount of laundry, etc. When a large amount of detergent foam is generated in the aquarium 3, the detergent foam may overflow from the air inlet 11, but at least in the washing process, the pipeline of the heated air blowing duct 13 is controlled by the pipeline shutter 81. By doing so, it is possible to prevent the detergent bubbles from entering the heat pump unit 20 from the heated air blowing duct 13. Since the pipe shutter 81 can be arbitrarily controlled to open and close, by controlling the pipe shutter 81 to open in the drying process, there is no problem in the supply of heated air.

  Since washing is completed by performing a rinse process and a dehydration process after a washing process, it can be made to shift arbitrarily to a drying process. Moreover, only the drying process which dries wet clothes can also be implemented. Operation | movement of this drying process is demonstrated below with reference to FIGS.

  When a laundry or wet clothes (hereinafter collectively referred to as clothing) is stored in the rotating drum 5 and the drying process is performed, the rotating drum 5 rotates at a rotational speed corresponding to the drying process to remove the clothes. Simultaneously with the stirring, the heat pump unit 20 and the blower fan 15 are driven to start circulation of the drying air. In the heat pump unit 20, the refrigerant is compressed by the operation of the compressor 27, and by this pressure, the refrigerant flows through the refrigerant pipe 41 and circulates through the radiator 29, the throttle means 42, and the heat absorber 28 as shown in FIG. 5. Since the heat of the compressed refrigerant flows into the radiator 29 and is radiated to the air in contact with the fins provided in the refrigerant pipe 41, the blown air is heated. Since the heated air is fed from the exhaust space 39 through the exhaust connection hose 33 and the heated air blowing duct 13 into the rotary drum 5 from the intake port 12, the heated air becomes moisture-absorbed air that has taken moisture from the clothes to be stirred. And is discharged from the exhaust port 12.

  While the hygroscopic air discharged from the exhaust port 12 passes through the filter unit 60, lint such as lint mixed in the air is captured by the filter. The hygroscopic air blown from the filter unit 60 to the hygroscopic air blowing duct 14 enters the intake space 38 of the heat pump unit 20 through the intake connection hose 49, the intake connection cylinder 32, and the hygroscopic air intake port 30, and is decompressed by the throttle means 42. When the low-pressure refrigerant passes through the heat absorber 28, the sensible heat and latent heat are deprived and dehumidified, and the dewed water generated by the dehumidification is dropped into the water storage unit 34 and dehumidified and dried. As a result, an air circulation is formed where the heat enters the radiator 29 and is heated again. The water stored in the water storage section 34 is discharged into the water tank 3 by operating a drain pump (not shown) at regular intervals, and the drain valve 19 is opened to pass through the drain pipe 25 from the drain port. Drained outside.

  The structure of the clothes drying apparatus that heats and dehumidifies the drying air by the heat pump unit 20 collects the heat absorbed by the heat absorber 28 with the refrigerant and dissipates the heat again from the radiator 29, so that it exceeds the energy input to the compressor 27. The amount of heat can be applied to the clothing, and it is possible to reduce the drying time and save energy.

  As described above, since the heat pump unit 20 uses the refrigerant, when the drum type washing and drying machine 1 is discarded, it is necessary to remove the heat pump unit 20 and collect the refrigerant. Removal can be done easily. That is, when the back plate and the lower back plate 78 that close the back of the washing machine housing 2 are removed, the heat pump unit 20 is exposed. Therefore, the hose band 77 is loosened from the intake connection cylinder 32 and the intake connection hose 49 is removed, and the exhaust connection hose is removed. The pipe connection can be easily released by loosening the 33 hose bands 77 and disconnecting from the heated air blowing duct 13. When the connector connection and the drain pipe for electrical connection are removed, the connection of the heat pump unit 20 is released. Therefore, the heat pump unit 20 can be taken out by pulling it backward as if it is lifted.

  As described above, according to the present invention, the constituent elements of the heat pump are configured in the heat pump unit integrally accommodated in the unit case, so that they can be easily attached and detached, and the connection of the air duct to the heat pump unit is flexible. This can be done by a simple operation of connecting the sex tube to the heated air exhaust port and the hygroscopic air intake port provided in the unit case. Therefore, the operation of assembling the heat pump into the apparatus and the operation of removing the heat pump and recovering the refrigerant when the apparatus is discarded can be easily performed.

Sectional drawing which shows the structure of the drum type washing-drying machine to which the clothes drying apparatus which concerns on this invention is applied. The side view which shows the actual form of a drum type washing-drying machine same as the above. The disassembled perspective view which shows the structure of a heat pump unit. Sectional drawing which shows the structure of a heat pump unit. The schematic diagram explaining the drying operation by a heat pump. The perspective view which shows the attachment structure and piping structure of a heat pump unit. Sectional drawing which shows the attachment structure of a heat pump unit.

Explanation of symbols

1 Drum-type washing and drying machine 2 Washing machine housing 3 Water tank (drying space)
5 Rotating drum 10 Water tank unit 11 Intake port 12 Exhaust port 13 Heated air blow duct (heated air blow duct)
14 Hygroscopic air blowing duct (Hygroscopic air blowing duct)
15 Blower Fan 20 Heat Pump Unit 32 Intake Connection Tube 33 Exhaust Connection Hose (Flexible Tube)
49 Intake connection hose (flexible tubing)
59 Exhaust tube 77 Hose band (fastening member)
78 Lower back plate

Claims (2)

The heated air exhaust port of the heat pump and the intake port of the drying space containing the clothing are connected by a heated air blowing duct, and the hygroscopic air blowing tube is connected between the exhaust port of the drying space and the hygroscopic air intake port of the heat pump. In the clothes drying device that connects by the road, blows heated air from the heat pump to the drying space, and dries the clothes by air circulation that returns the moisture absorption air from the drying space to the heat pump,
The heat pump components are integrated into a unit case, and the unit case is provided with the heated air exhaust port and the hygroscopic air intake port. The heated air blowing duct and / or the hygroscopic air blowing tube A clothes drying apparatus, wherein at least a heat pump unit side of a path is formed of a flexible pipe material, and a connection tube connected to the flexible pipe material is provided at a heated air exhaust port and a hygroscopic air intake port. The flexible tube material is formed in a substantially cylindrical shape or a bellows shape by an elastic material, and a connection end is externally fitted to the connection tube, and is crimped to an outer peripheral surface of the connection tube by a fastening member, and is connected to the pipe. Clothing drying equipment.

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