JP6923620B2 - Clothes dryer - Google Patents

Description

Embodiments of the present invention relate to a clothes dryer.

Conventionally, a clothes dryer provided with a heat pump unit has been provided as a heat source for drying clothes and the like. By the way, in this kind of clothes dryer, it is necessary to arrange the heat pump unit in the limited space in the housing, and it is necessary to devise the arrangement configuration. For example, in Patent Document 1, by providing an air inlet above the compressor constituting the heat pump unit, the air passage connected to the heat pump unit is shortened, and the heat pump unit is arranged in a limited space in the housing. The technology to do so is disclosed.

Japanese Patent No. 5602802

However, in a configuration in which the air inlet is provided above the compressor, the air passage for guiding the inflowing air to the evaporator, that is, the air passage between the inlet and the evaporator should be avoided from the compressor. Must be provided. Therefore, it is necessary to bend or narrow the air passage between the inflow port and the evaporator, and the air passage resistance increases accordingly. Here, for example, if the case itself of the heat pump unit is enlarged or the installation position of the compressor is changed, the air passage resistance is not required to bend or narrow the air passage between the inflow port and the evaporator. Can be suppressed. However, in the housing, for example, a suspension for supporting the drying chamber is arranged, and depending on the positional relationship with such other components, the case of the heat pump unit can be enlarged or the compressor installation position can be increased. Is difficult to change freely.

Therefore, in the present embodiment, it is possible to avoid an increase in the air passage resistance of the air passage between the inflow port and the evaporator without increasing the case of the heat pump unit or changing the installation position of the compressor. Provide a clothes dryer that can be used.

The clothes dryer according to the present embodiment includes a housing, a drying chamber, a circulation air passage, a blowing means, and a heat pump unit. The drying chamber is provided in the housing and has an air outlet and an inlet. The circulating air passage includes an upstream air passage connected to the outlet of the drying chamber, a downstream air passage connected to the inlet of the drying chamber, and an intermediate wind connecting the upstream air passage and the downstream air passage. It consists of a road. The air blowing means circulates the air in the drying chamber through the circulating air passage. The heat pump unit has the intermediate air passage inside, constitutes a refrigerating cycle in which the refrigerant is circulated through the compressor, the condenser, the squeezer and the evaporator, and the condenser and the evaporator are placed in the intermediate air passage. The air flowing in from the upstream air passage is dehumidified by the evaporator, heated by the condenser, and discharged to the downstream air passage. Then, the case constituting the outer shell of the heat pump unit includes a compressor cover for covering said compressor, and Hiponkaba covering the evaporator comprises as a component of the case, and the heat pump unit, the upstream An inflow port for air flowing from the side air passage to the intermediate air passage is provided between the compressor and the evaporator on the heat pump cover side.

Longitudinal side view schematically showing a configuration example of a clothes dryer according to the present embodiment Longitudinal rear view schematically showing a configuration example of a clothes dryer according to this embodiment. A perspective view of a configuration example of a main part of the clothes dryer according to the present embodiment as viewed from the left side of the back surface. A perspective view of a configuration example of a main part of the clothes dryer according to the present embodiment as viewed from the right side of the back surface. The figure which shows the structural example of the heat pump unit which concerns on this embodiment schematicly. Top view schematically showing a configuration example in the case of the heat pump unit according to the present embodiment. A cross-sectional view schematically showing a configuration example in the case of the heat pump unit according to the first embodiment. A cross-sectional view schematically showing a configuration example in the case of the heat pump unit according to the second embodiment. A cross-sectional view schematically showing a configuration example in the case of the heat pump unit according to the third embodiment. A cross-sectional view schematically showing a configuration example in the case of the heat pump unit according to the fourth embodiment. A cross-sectional view schematically showing a configuration example in the case of the heat pump unit according to the fifth embodiment. A cross-sectional view schematically showing a configuration example in the case of the heat pump unit according to the sixth embodiment. A cross-sectional view schematically showing a configuration example in the case of the heat pump unit according to the seventh embodiment. A cross-sectional view schematically showing a configuration example in the case of the heat pump unit according to the eighth embodiment.

Hereinafter, a plurality of embodiments relating to the clothes dryer will be described with reference to the drawings. In each embodiment, substantially the same elements are designated by the same reference numerals, and the description thereof will be omitted.
(First Embodiment)
The washer / dryer 1 illustrated in FIGS. 1 to 4 is a drum-type washing machine having a clothes washing function and a clothes drying function, and also functions as a clothes dryer. The housing 2 constituting the main body of the washer / dryer 1 has a substantially rectangular box shape, and the front surface portion 2a is formed in a slightly downward inclined shape. A laundry entrance / exit (not shown) is formed on the front surface portion 2a. Further, a door 3 for opening and closing the laundry entrance / exit is rotatably provided on the front surface portion 2a. Inside the housing 2, the water tank 4 is elastically supported via the suspension S. The water tank 4 has a bottomed cylindrical shape in which the front surface is open and the rear surface is closed, the axial direction is directed in the front-rear direction, and the water tank 4 is arranged in a slightly upwardly inclined state. The front opening of the water tank 4 is connected to the laundry entrance / exit via a bellows-shaped bellows (not shown). The water tank 4 functions as a drying chamber during the drying process for drying laundry such as clothes.

In the water tank 4, a drum 6 which is an example of a rotary tank is rotatably arranged. Like the water tank 4, this drum 6 also has a bottomed cylindrical shape having an opening on the front surface and a closed rear surface, and is arranged in a slightly upwardly inclined state with the axial direction directed in the front-rear direction. Has been done. A large number of holes 6a are formed in the peripheral wall portion and the rear wall portion of the drum 6. These holes 6a function as water passage holes through which water passes during the washing process and rinsing process, and function as ventilation holes through which dry air passes during the drying process. A motor 7 is provided on the back of the water tank 4, and the drum 6 is rotationally driven by the motor 7 via a rotating shaft 7a. A plurality of baffles (not shown) are provided inside the peripheral wall portion of the drum 6. Laundry such as clothes is housed in the drum 6 so as to be able to be taken in and out through the laundry entrance / exit, the opening of the water tank 4, and the opening of the drum 6.

The water tank 4 is provided with a wind inlet 8a at the upper part of the rear wall and an upward wind outlet 8b at the upper part of the front part of the peripheral wall portion. The air inlet 8a is an example of an air inlet provided in the drying chamber, and the air outlet 8b is an example of an air outlet provided in the drying chamber. A filter case 10 is connected to the upper part of the air outlet 8b via a connecting duct 9 formed in a bellows shape so as to be able to absorb vibration. A lint filter (not shown) is detachably attached to the filter case 10.

The front end of the exhaust duct 11 is connected to the rear of the filter case 10. The exhaust duct 11 is an example of an upstream air passage that constitutes an air passage on the upstream side of the ventilation means among the circulating air passages. The exhaust duct 11 extends rearward from the filter case 10 and then turns downward. The lower end portion is connected to the case 13 of the heat pump unit 12 provided below the water tank 4 at the rear lower portion in the housing 2. The case 13 constitutes the outer shell of the heat pump unit 12. The case 13 extends behind the suspension S along the lateral direction of the washer / dryer 1, that is, along the horizontal direction.

A compressor 22 constituting the heat pump 21 is disposed at one end of the case 13, and a blower 14 constituting the blowing means is disposed at the other end of the case 13. The blower 14 is composed of a fan casing 15, a fan 16 arranged in the fan casing 15, and a fan motor 17 for rotationally driving the fan 16. The discharge port of the fan casing 15 is provided upward, and one end of the air supply duct 19 is connected to the discharge port via a connection duct 18 formed in a bellows shape so as to be able to absorb vibration. The other end of the air supply duct 19 extends upward and is connected to the air inlet 8a of the water tank 4. The air supply duct 19 is an example of a downstream air passage that constitutes an air passage on the downstream side of the air blowing means among the circulating air passages.

Here, the washer / dryer 1 is provided with a connection duct 9, a filter case 10, an exhaust duct 11, a case 13 of the heat pump unit 12, a fan casing 15 of the blower 14, a connection duct 18, and an air supply duct 19. It constitutes a circulating air passage 20 that communicates between the outlet 8b and the air inlet 8a. One end of the circulation air passage 20 is connected to the air inlet 8a and the other end is connected to the air outlet 8b on the outside of the water tank 4 and inside the housing 2. When the blower 14 is driven, the air in the water tank 4 flows out from the air outlet 8b into the circulation air passage 20 and circulates so as to be returned from the air inlet 8a into the water tank 4 through the circulation air passage 20. In the process of this circulation, the air flowing in the circulation air passage 20 is dehumidified by the evaporator 25, further heated by the condenser 23, and flows into the water tank 4 as warm air.

The circulating air passage 20 is roughly divided into three air passages: an upstream air passage 20A, a downstream air passage 20B, and an intermediate air passage 20C.
The upstream air passage 20A is mainly composed of the exhaust duct 11 and includes the connection duct 9 and the filter case 10, and is connected to the air outlet 8b of the water tank 4. In this case, the upstream air passage 20A has an upper air passage 20Aa extending in the front-rear direction in the upper part of the water tank 4 and a back air passage 20Ab extending in the vertical direction in the back surface of the water tank 4. The downstream air passage 20B is mainly composed of the air supply duct 19 and includes the fan casing 15 and the connecting duct 18, and is connected to the air inlet 8a of the water tank 4. The intermediate air passage 20C connects the leeward end of the upstream air passage 20A and the leeward end of the downstream air passage 20B between the upstream air passage 20A and the downstream air passage 20B. ing. In this case, the intermediate air passage 20C is formed inside the case 13 of the heat pump unit 12.

As shown in FIG. 5 as an example, the heat pump 21 provided in the heat pump unit 12 constitutes a refrigeration cycle by cycle-connecting the compressor 22, the condenser 23, the squeezer 24, and the evaporator 25 by the refrigerant pipe 26. Of these, the condenser 23 and the evaporator 25 constituting the heat exchanger are arranged in the intermediate air passage 20C provided in the case 13 of the circulation air passage 20. In the case 13, the condenser 23 is arranged closer to the blower 14 than the evaporator 25. That is, the evaporator 25 is arranged on the upstream side of the condenser 23. The condenser 23 functions as a heating means for heating the air passing through the circulating air passage 20, and the evaporator 25 functions as a dehumidifying means for cooling and dehumidifying the air passing through the circulating air passage 20.

The clothes dryer 1 according to the present embodiment adopts a configuration for suppressing an increase in air passage resistance of the circulating air passage 20, particularly the intermediate air passage 20C. Next, this configuration will be described. That is, as illustrated in FIG. 2, the case 13 of the heat pump unit 12 has an inflow port 30 to which the downstream end of the upstream air passage 20A is connected. In this case, the inflow port 30 is provided between the compressor 22 and the evaporator 25 on the upper surface of the case 13 of the heat pump unit 12.

In this case, the case 13 includes a heat pump cover 13A that covers the top of the condenser 23 and the evaporator 25, and a compressor cover 13B that covers the top of the compressor 22. The inflow port 30 is provided on the heaton cover 13A. Further, the inflow port 30 is provided at a position lower than the upper end of the compressor cover 13B. The heaton cover 13A provided with the inflow port 30 may be a cover that covers at least the upper part of the evaporator 25. That is, the heapon cover that covers the upper part of the evaporator 25 and the heapon cover that covers the upper part of the condenser may be provided separately, and the inflow port 30 may be provided in the heapon cover that covers the evaporator 25.

Further, when viewed from the back side of the washer / dryer 1, the inflow port 30 is displaced laterally, that is, in the horizontal direction of the washer / dryer 1 with respect to the upper end portion of the back air passage 20Ab constituting the upstream air passage 20A. It is configured in position. In this case, the inflow port 30 is provided so that the entire inflow port 30 does not overlap the upper end portion of the rear air passage 20Ab. However, the inflow port 30 may be provided so that a part thereof does not overlap the upper end portion of the rear air passage 20Ab. In the washer / dryer 1 according to the present embodiment, the compressor 22 is located behind the suspension S and below the rear air passage 20Ab.

Further, when viewed from the back side of the washer / dryer 1, the inflow port 30 is located below the motor 7 for rotating the drum 6 provided in the water tank 4. In this case, the inflow port 30 is entirely located below the motor 7. However, the inflow port 30 may be configured such that a part thereof is located below the motor 7.

Further, the rear air passage 20Ab constituting the upstream side air passage 20A has a vertical portion 20Ac extending in the vertical direction and a horizontal portion 20Ad extending in the horizontal direction. In the horizontal portion 20Ad, the area of the cross section orthogonal to the horizontal direction, that is, the air passage area is larger than the opening area of the inflow port 30. In this case, the air passage area of the horizontal portion 20Ad is larger than the opening area of the inflow port 30 in any cross section. However, the horizontal portion 20Ad may have a configuration in which at least a part of the air passage area is larger than the opening area of the inflow port 30.

Further, the air passage area of the horizontal portion 20Ad is larger than the area of the cross section of the vertical portion 20Ac orthogonal to the vertical direction, that is, the air passage area. In this case, the air passage area of the horizontal portion 20Ad is larger than the air passage area of any cross section of the vertical portion Ac in any cross section. However, the horizontal portion 20Ad may have a configuration in which at least a part of the air passage area is larger than the air passage area of any cross section of the vertical portion 20Ac.

The rear air passage 20Ab has a configuration in which a vertical portion 20Ac and a horizontal portion 20Ad are separately provided. By the way, in the drying process, moist air before being dehumidified by the evaporator 25 flows in the upstream air passage 20A including the back air passage 20Ab. Therefore, there is a concern that the moisture contained in the air will condense and leak from the connecting portion between the vertical portion 20Ac and the horizontal portion 20Ad. Therefore, as illustrated in FIGS. 3 and 4, a groove-shaped water receiving groove 35, which is an example of the water receiving portion, is provided on the outer surface of the horizontal portion 20Ad according to the present embodiment. Therefore, even if water leaks from the connecting portion between the vertical portion 20Ac and the horizontal portion 20Ad, the leaked water can be received by the water receiving groove 35, and the lower heat pump unit 12 gets wet. It can be avoided.

Further, the bottom portion of the horizontal portion 20Ad is inclined downward toward the inflow port 30. As a result, even if water contained in the air flowing in the upstream air passage 20A condenses, the water can be guided to the inflow port 30, and water is accumulated in the horizontal portion 20Ad and eventually in the upstream air passage 20A. Can be avoided. A drain hole (not shown) is provided in the case 13 to connect to a drain tank, and the condensed water flowing into the case 13 from the inflow port 30 can be drained to the drain tank.

Further, the horizontal portion 20Ad has a bent portion 20Ae connected to the inflow port 30 on the downstream side thereof. The bent portion 20Ae is provided at a position lower than the lower end of the motor 7. In the washer / dryer 1, for example, a packaging bolt 38 for fixing the water tank 4 at the time of shipment from the factory is provided on the back surface of the water tank 4. However, in the washer / dryer 1 according to the present embodiment, the horizontal portion 20Ad extends to the portion where the packaging bolt is provided in the conventional washer / dryer. Therefore, it is difficult to attach the packaging bolt sideways as in the conventional washer / dryer. Therefore, in the washer / dryer 1 according to the present embodiment, the space between the horizontal portion 20Ad and the downstream air passage 20B is effectively utilized, and the packaging bolt 38 is attached in the vertical orientation instead of the conventional horizontal orientation. ..

Further, the inflow port 30 is provided at a position lower than the upper end of the compressor 22. Here, the upper end of the compressor 22 basically means the upper end of the main body of the compressor 22, that is, the shoulder of the compressor 22. However, for example, when the refrigerant pipe 26 extends upward from the discharge port of the compressor 22, the portion where the refrigerant pipe 26 is first bent may be defined as the upper end of the compressor 22.

Further, as illustrated in FIG. 6, in the case 13, the evaporator 25 is inclined so that the rear end side is away from the compressor 22 than the front end side. Similarly, the condenser 23 is also inclined so that the rear end side is away from the compressor 22 than the front end side. A bulging portion 13a that slightly bulges rearward is provided on the portion of the rear end surface of the case 13 between the compressor 22 and the evaporator 25. The inflow port 30 is provided corresponding to the bulging portion 13a. As a result, the inflow port 30 has a configuration in which the rear end is located after the rear end of the evaporator 25.

Further, in the case 13, an inclined portion that inclines downward toward the evaporator 25 is provided at a position below the inflow port 30. Next, a configuration example of this inclined portion will be described. In the configuration example illustrated in FIG. 7, the wall surface of the intermediate air passage 20C facing the compressor 22 is composed of the wall surface forming member 40. The wall surface forming member 40 is fixed to the bottom of the case 13 by, for example, screwing. The wall surface forming member 40 is integrally provided with an inclined portion 41 that inclines downward toward the evaporator 25. As a result, the wall surface forming member 40 is attached to the case 13, so that the inclined portion 41 is provided below the inflow port 30. According to this configuration, as shown by the arrow W, the wind flowing in from the inflow port 30 easily flows toward the evaporator 25, and the air passage resistance in the air passage between the inflow port 30 and the evaporator 25 is increased. Can be further suppressed.

Further, the intermediate air passage 20C has a horizontal air passage portion 20Ca extending horizontally on the upstream side of the evaporator 25 and on the downstream side of the inclined portion 41. According to this configuration, the wind flowing along the inclined portion 41 reaches the evaporator 25 while being rectified in the horizontal air passage portion 20Ca.

According to the washer / dryer 1, an inflow port 30 for allowing air to flow from the upstream air passage 20A into the intermediate air passage 20C is provided between the compressor 22 and the evaporator 25, not above the compressor 22. rice field. Therefore, it is possible to confirm a sufficient air passage area without enlarging the case 13 of the heat pump unit 12 or changing the installation position of the compressor 22, and it is possible to confirm the sufficient air passage area between the inflow port 30 and the evaporator 25. It is possible to suppress an increase in air passage resistance in the air passage.

(Second Embodiment)
In the configuration example illustrated in FIG. 8, the washer / dryer 1 includes a wind direction adjusting member 50 attached to the inflow port 30. The wind direction adjusting member 50 forms a wind direction adjusting portion 51 below the inflow port 30 to guide the air flowing in from the inflow port 30 toward the evaporator 25. The wind direction adjusting portion 51 has an inclined portion 52 that inclines downward toward the evaporator 25. In this case, the inclined portion 52 forms a flat inclined surface.
With this configuration as well, the wind flowing in from the inflow port 30 can easily flow toward the evaporator 25, and an increase in air passage resistance in the air passage between the inflow port 30 and the evaporator 25 can be further suppressed.

(Third Embodiment)
In the configuration example illustrated in FIG. 9, the washer / dryer 1 includes a wind direction adjusting member 60 attached to the inflow port 30. The wind direction adjusting member 60 forms a wind direction adjusting portion 61 below the inflow port 30 to guide the air flowing in from the inflow port 30 toward the evaporator 25. The wind direction adjusting portion 61 has an inclined portion 62 that inclines downward toward the evaporator 25. In this case, the inclined portion 62 forms a curved inclined surface.
With this configuration as well, the wind flowing in from the inflow port 30 can easily flow toward the evaporator 25, and an increase in air passage resistance in the air passage between the inflow port 30 and the evaporator 25 can be further suppressed.

(Fourth Embodiment)
In the configuration example illustrated in FIG. 10, the washer / dryer 1 includes a plurality of wind direction plates 63 in the wind direction adjusting portion 61 of the wind direction adjusting member 60. These wind direction plates 63 adjust the wind direction of the air flowing in from the inflow port 30 toward the evaporator 25. According to this configuration, the wind flowing in from the inflow port 30 becomes easier to flow toward the evaporator 25, and the increase in the air passage resistance in the air passage between the inflow port 30 and the evaporator 25 can be further suppressed. .. The wind direction plate 63 may be provided integrally with the wind direction adjusting member 60, or may be provided separately. Further, if the number of the wind direction plates 63 is increased too much, a sound may be generated when the wind passes between the wind direction plates 63. Therefore, it is preferable that the number of wind direction plates 63 is limited to such that no sound is generated.

(Fifth Embodiment)
In the configuration example illustrated in FIG. 11, the washer / dryer 1 includes a wind direction adjusting member 70 attached to the inflow port 30. The wind direction adjusting member 70 forms a wind direction adjusting portion 71 below the inflow port 30 to guide the air flowing in from the inflow port 30 toward the evaporator 25. The wind direction adjusting portion 71 includes a tubular tubular portion 72 extending below the inflow port 30. According to this configuration, the wind flowing in from the inflow port 30 can easily flow toward the evaporator 25, and an increase in air passage resistance in the air passage between the inflow port 30 and the evaporator 25 can be further suppressed. In particular, at the lower end of the tubular portion 72, a flow of wind that goes around the lower end is also formed, which makes it easier for the wind to head toward the upper side of the evaporator 25. Therefore, the wind can be uniformly blown from the upper part to the lower part of the evaporator 25.

(Sixth Embodiment)
In the configuration example illustrated in FIG. 12, the washer / dryer 1 includes a wind direction adjusting member 80 attached to the inflow port 30. The wind direction adjusting member 80 forms a wind direction adjusting portion 81 below the inflow port 30 to guide the air flowing in from the inflow port 30 toward the evaporator 25. The wind direction adjusting portion 81 includes a tubular tubular portion 82 extending below the inflow port 30. The tubular portion 82 includes a plurality of air outlets 83. In this case, the tubular portion 82 includes a plurality of stages, in this case, a three-stage outlet 83 along the vertical direction of the tubular portion 82. Each of these outlets 83 has a rectangular opening, and the one provided on the downstream side, that is, the lower end side of the tubular portion 82 has a larger opening. The outlet 83 does not have to have a rectangular shape, and the shape may be appropriately changed, for example, a circular shape, an elliptical shape, a triangular shape, or a polygonal shape.

According to this configuration, since the wind is blown out from the plurality of stages of the outlets 83 arranged along the vertical direction of the tubular portion 82, the wind can be sent over a wide range from the upper part to the lower part of the evaporator 25. By making the sizes of the plurality of outlets 83 equal to each other, the wind can be uniformly sent from the upper part to the lower part of the evaporator 25. Further, by appropriately changing the size of each outlet 83, the amount of air sent to the evaporator 25 can be adjusted, and for example, the balance between the amount of air sent to the upper part of the evaporator 25 and the amount of air sent to the lower part can be balanced. Can be adjusted.

(7th Embodiment)
In the configuration example illustrated in FIG. 13, the tubular portion 82 includes a plurality of outlets 83, and the number of these outlets 83 is increased toward the downstream side. According to this configuration, since the wind is blown out from the plurality of stages of the outlets 83 arranged along the vertical direction of the tubular portion 82, the wind can be sent over a wide range from the upper part to the lower part of the evaporator 25. By making the number of the outlets 83 in each stage equal, it is possible to uniformly send the wind from the upper part to the lower part of the evaporator 25. Further, by appropriately changing the number of the outlets 83 of each stage, the amount of air sent to the evaporator 25 can be adjusted, for example, the balance between the amount of air sent to the upper part of the evaporator 25 and the amount of air sent to the lower part of the evaporator 25. Can be adjusted.

(8th Embodiment)
In the configuration example illustrated in FIG. 14, the inflow port 30 is provided so as to be depressed from the upper surface of the case 13, whereby the inflow port 30 is provided at a position lower than the upper end of the evaporator 25. There is. According to this configuration, a wind flow that wraps around the lower end of the inflow port 30 is also formed, and the wind can easily flow to the upper side of the evaporator 25. Therefore, the wind can be uniformly blown from the upper part to the lower part of the evaporator 25.

(Other embodiments)
The present embodiment is not limited to the above-described embodiment, and can be extended or modified as follows, for example.
For example, the rear air passage 20Ab may be integrally molded with a vertical portion and a horizontal portion. According to this configuration, water leakage at the connecting portion between the vertical portion and the horizontal portion can be reliably avoided. Further, the above-described embodiments may be combined and implemented.
Further, the inflow port 30 may be provided at a position where a part thereof overlaps with the evaporator 25 when viewed from above.

The clothes dryer according to the present embodiment described above includes a housing, a drying chamber, a circulation air passage, a blowing means, and a heat pump unit. The drying chamber is provided in the housing and has an air outlet and an inlet. The circulating air passage includes an upstream air passage connected to the outlet of the drying chamber, a downstream air passage connected to the inlet of the drying chamber, and an intermediate wind connecting the upstream air passage and the downstream air passage. It consists of a road. The air blowing means circulates the air in the drying chamber through the circulating air passage. The heat pump unit has the intermediate air passage inside, constitutes a refrigerating cycle in which the refrigerant is circulated through the compressor, the condenser, the squeezer and the evaporator, and the condenser and the evaporator are placed in the intermediate air passage. The air flowing in from the upstream air passage is dehumidified by the evaporator, heated by the condenser, and discharged to the downstream air passage. The heat pump unit is provided with an inflow port into which air from the upstream air passage flows between the compressor and the evaporator. According to this configuration, it is possible to confirm a sufficient air passage area without enlarging the case of the heat pump unit or changing the installation position of the compressor, and the wind between the inflow port and the evaporator can be confirmed. It is possible to avoid an increase in the air passage resistance of the road.

It should be noted that this embodiment is presented as an example, and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. The present embodiment and its modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and the equivalent scope thereof.

In the drawing, 1 is a washer / dryer (clothes dryer), 2 is a housing, 4 is a water tank (drying chamber), 6 is a drum (rotary tank), 7 is a motor, 8a is an air inlet, and 8b is an air outlet. , 12 is a heat pump unit, 13 is a case, 13A is a heat pump cover, 13B is a compressor cover, 14 is a blower (blower means), 20 is a circulating air passage, 20A is an upstream air passage, 20Ab is a rear air passage, and 20Ac is. Vertical part, 20Ad is horizontal part, 20Ae is bent part, 20B is downstream air passage, 20C is intermediate air passage, 20Ca is horizontal air passage part, 22 is compressor, 23 is condenser, 24 is squeezer, 25 is Evaporator, 30 is the inflow port, 35 is the water receiving groove (water receiving part), 41, 52, 62 is the inclined part, 50, 60, 70, 80 are the wind direction adjusting members, 51, 61, 71, 81 are the wind direction adjusting. A portion, 63 is a wind direction plate, 72 and 82 are tubular portions, and 83 is an outlet.

Claims (6)

With the housing
A drying chamber provided in the housing and having an air outlet and an inlet,
It is composed of an upstream air passage connected to the outlet of the drying chamber, a downstream air passage connected to the inlet of the drying chamber, and an intermediate air passage connecting the upstream air passage and the downstream air passage. Circulation air passage and
An air blowing means for circulating the air in the drying chamber through the circulating air passage, and
A refrigeration cycle having the intermediate air passage inside and circulating a refrigerant through a compressor, a condenser, a squeezer and an evaporator is provided, and the condenser and the evaporator are provided in the intermediate air passage, and the upstream A heat pump unit that dehumidifies the air flowing in from the side air passage by the evaporator, heats it by the condenser, and flows out to the downstream side air passage is provided.
The case constituting the outer shell of the heat pump unit is
A compressor cover that covers the compressor and
A heaton cover that covers the evaporator and
Is provided as a component of the case.
The heat pump unit is a clothes dryer provided with an inflow port for air flowing from the upstream side air passage to the intermediate air passage between the compressor and the evaporator on the heat pump cover side. The upstream air passage has a horizontal portion extending in the horizontal direction.
The clothes dryer according to claim 1 , wherein the horizontal portion has at least a part of the air passage area larger than the opening area of the inflow port. The upstream air passage has a vertical portion extending in the vertical direction and a horizontal portion extending in the horizontal direction separate from the vertical portion.
The clothes dryer according to claim 1 or 2 , wherein the horizontal portion has at least a part of the air passage area larger than the vertical portion. The upstream air passage has a horizontal portion extending in the horizontal direction.
Bottom of the horizontal section, the clothes drier of claim 1 which is inclined downward toward the inlet. A wind direction adjusting member attached to the inflow port is provided.
The clothes dryer according to any one of claims 1 to 4 , wherein the wind direction adjusting member forms a wind direction adjusting portion that guides the air flowing in from the inflow port toward the evaporator below the inflow port. .. The clothes dryer according to any one of claims 1 to 5 , wherein the inflow port is provided on the heat pump cover.

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