WO2020017549A1

WO2020017549A1 - Dehumidifying and drying unit and washing and drying machine

Info

Publication number: WO2020017549A1
Application number: PCT/JP2019/028078
Authority: WO
Inventors: 政年藤井; 豊江場
Original assignee: シャープ株式会社
Priority date: 2018-07-20
Filing date: 2019-07-17
Publication date: 2020-01-23
Also published as: CN112424417B; CN112424417A; JPWO2020017549A1; TWI801625B; JP7301835B2; TW202007812A

Abstract

This dehumidifying and drying unit has, as a portion of an air ventilation path, a lower case member (100) provided with: a second small chamber (120) in which an evaporator (40) and a condenser (20) are arranged; and a fourth small chamber (140) partitioned from the second small chamber (120) by a partition wall (101). The fourth small chamber (140) is provided with a gradient part (141) arranged to be connected to the partition wall (101) and having an upper surface formed as an inclined surface that is lower toward the partition wall (101). The upper surface of the gradient part (141) is positioned lower than the lower end of a side plate on the partition wall (101) or higher than the upper end of the partition wall (101), and a long-thin gap (103) is formed between the lower end of the side plate (60) and the upper surface of the gradient part (141).

Description

Dehumidification drying unit and washing dryer

The present invention relates to a dehumidifying / drying unit for generating dry air and a washing / drying machine using the same.

洗濯 Conventionally, a washing / drying machine having both a washing function and a drying function has been commercialized. Such a washing / drying machine sends dry air into a washing tub to dry laundry that has been washed and dehydrated. For this reason, the washing and drying machine is provided with a dehumidifying and drying unit for generating dry air.

The conventional dehumidifying and drying unit has a structure in which the components of the refrigeration cycle are stored in a case having an air inlet and an air outlet. The configuration of such a conventional dehumidifying and drying unit will be described with reference to FIGS. The case for storing the refrigeration cycle is usually composed of an upper case member and a lower case member, but the illustration of the upper case member is omitted in FIGS. The state which arranged the element is illustrated. FIG. 8 is a perspective view of the dehumidifying / drying unit as viewed obliquely from above, and FIG. 9 is a plan view thereof. FIG. 10 is a perspective view of the lower case member as viewed obliquely from above, and FIG. 11 is a plan view thereof.

As shown in FIGS. 8 and 9, in the conventional dehumidifying and drying unit, on the lower case member 500, each component of the refrigeration cycle, that is, the compressor 10, the condenser 20, the expansion valve 30, and the evaporator 40 are provided. It is fixedly arranged. These components are connected by a refrigerant pipe 50 for circulating a refrigerant.

Inside such a dehumidifying and drying unit, a ventilation path is formed from the air intake port to the air exhaust port, and in this ventilation path, the condenser 20 and the evaporator 40 are arranged. The evaporator 40 is on the upstream side and the condenser 20 is on the downstream side along the flow direction of air. The evaporator 40 cools the air taken in from the air inlet, and removes moisture in the air by dew condensation. The air from which the moisture has been removed is warmed in the condenser 20, becomes dry air, and is discharged from the air outlet. The drying air generated by the dehumidifying drying unit is used for drying the laundry.

As shown in FIGS. 10 and 11, the lower case member 500 is divided into a plurality of small chambers by an outer wall and an inner partition wall. Specifically, the lower case member 500 has a first small room 110, a second small room 120, a third small room 130, a fourth small room 140, and a fifth small room 150.

The first small chamber 110 is connected to the air inlet, and is the first chamber into which the air taken in from the air inlet enters first. In the examples shown in FIGS. 8 to 11, the air inlet is provided on the upper case member side and is not shown. The second small chamber 120 is a small chamber in which the condenser 20 and the evaporator 40 are arranged above. The third small chamber 130 is connected to the air outlet, and is a small chamber that discharges dry air from the air outlet to the outside. Note that, in the examples shown in FIGS. 8 to 11, the air outlet is provided so as to straddle the upper case member and the lower case member 500, and only the lower half of the air outlet is shown. The expansion valve 30 is arranged in the fourth small chamber 140, and the compressor 10 is arranged in the fifth small chamber.

The first small chamber 110, the second small chamber 120, and the third small chamber 130 are connected in a substantially straight line, and a ventilation path is formed by these small chambers. That is, when the air flowing through the ventilation path passes through the second small chamber 120, dry air is obtained by the dehumidifying and drying action of the condenser 20 and the evaporator 40.

8) The condenser 20 and the evaporator 40 are heat exchangers in which the refrigerant pipes 50 are arranged in a meandering manner between the two

side plates

60, 60 as shown in FIGS. The two

side plates

60, 60 can be shared by the condenser 20 and the evaporator 40. In the condenser 20, high-temperature refrigerant flowing from the compressor 10 to the expansion valve 30 is passed through the refrigerant pipe 50, and in the evaporator 40, low-temperature refrigerant flowing from the expansion valve 30 to the compressor 10 is passed through the refrigerant pipe 50.

Further, a partition wall 101 is provided between the second small chamber 120 and the fourth small chamber 140, and one side plate 60 (the right side plate 60 in FIG. 8) of the condenser 20 and the evaporator 40 is a partition wall. It is mounted on 101. As a result, the space between the second small chamber 120 and the fourth small chamber 140 is blocked by the partition wall 101 and the side plate 60, and the communication is not established.

Here, it is important to make the communication between the second small chamber 120 and the fourth small chamber 140 non-communicative in order to increase the efficiency in the dehumidifying and drying unit. That is, when the communication between the second small chamber 120 and the fourth small chamber 140 is not interrupted and the communication state is established, the ventilation path extends to the fourth small chamber 140, and a part of the air passing through the ventilation path becomes the second small chamber. Flowing through the fourth compartment 140 without passing through 120 may occur. At this time, the air flowing through the fourth small chamber 140 is not sufficiently subjected to the dehumidifying and drying action of the condenser 20 and the evaporator 40, and is discharged from the air outlet as moist air. Decreases unit efficiency. If there is no communication between the second small chamber 120 and the fourth small chamber 140, it is possible to prevent air from flowing through the fourth small chamber 140.

(4) When the dehumidifying / drying unit is operated, water (condensed water) condensed in the evaporator 40 falls on the lower case member 500 due to gravity. Specifically, the dew condensation water falls on the bottom of the second small chamber 120 in which the evaporator 40 is arranged. The second small chamber 120 is provided with a drain hole 102 (see FIG. 10), and the dew condensation water accumulated in the second small chamber 120 is externally discharged by a drain pump 70 (see FIGS. 8 and 9) connected to the drain hole 102. Can be discharged to

On the other hand, dew water generated by the evaporator 40 is generated not only in the second small chamber 120 but also in the fourth small chamber 140. This is because the refrigerant pipes 50 included in the evaporator 40 are arranged in a meandering manner, and the bent portion of the refrigerant pipes 50 arranged in this way exists outside the side plate 60, that is, in the fourth small chamber 140. is there. Since the low-temperature refrigerant flows also in the bent portion of the refrigerant pipe 50 included in the evaporator 40, dew condensation water is generated also in this portion, and the generated dew water falls to the bottom of the fourth small chamber 140.

The condensed water that accumulates in the fourth small chamber 140 evaporates due to the operating heat of the compressor 10 if the amount is small. The check valve 71 (see FIG. 8) is discharged to the outside. However, the condensed water discharged from the check valve 71 is not discharged by the drain pump 70, and in a washing / drying machine having a dehumidifying / drying unit, water leaks onto the floor. Condensation water must be prevented from being discharged from the facility.

On the other hand, Patent Literature 1 discloses a configuration in which a groove-shaped drainage channel is provided in a partition wall that separates a ventilation path from a small chamber outside the ventilation path. That is, the condensed water generated outside the ventilation path can be returned to the ventilation path side by the drainage path, and can be drained together with the condensed water generated in the ventilation path.

JP 2010-63694A

In the configuration of Patent Document 1, the drainage channel is provided to connect the ventilation path with the small chamber outside the ventilation path, so that the efficiency of the dehumidifying and drying unit is reduced. This is because, as described above, air flows through the small chamber outside the ventilation path, and such air flow is discharged to the outside without being sufficiently dehumidified and dried in the ventilation path. That's why. In Patent Literature 1, in order to minimize such a decrease in efficiency, the drainage channel has a vertically elongated groove shape.

However, if the drainage channel has an elongated groove shape, the drainage channel may be clogged with dust or rust. When the drainage channel is clogged, naturally, the dew condensation water generated outside the ventilation path cannot be returned to the ventilation path side, and similarly to the dehumidifying and drying unit shown in FIGS. There is. In other words, it cannot be said that the configuration in Patent Document 1 can reliably prevent water leakage due to dew condensation water.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a dehumidifying / drying unit and a washer / dryer that can more reliably prevent water leakage due to dew condensation while suppressing a decrease in the efficiency of dehumidifying and drying. I do.

In order to solve the above problems, a dehumidifying and drying unit according to a first aspect of the present invention includes a refrigeration system including a compressor, a condenser, an expansion valve, and an evaporator in a case having an air inlet and an air outlet. A dehumidifying / drying unit storing a cycle, wherein the case includes a lower case member and an upper case member, and the lower case member is a part of a ventilation path connecting the air inlet to the air outlet. Wherein the evaporator and the condenser are disposed in a ventilation path inside small chamber, and the ventilation path inside small chamber has a ventilation path outside small chamber divided by a partition wall, the evaporator, A heat exchanger in which a refrigerant pipe is arranged in a meandering manner between two side plates, and one of the side plates is disposed so as to be placed on the partition wall; Contact with the partition wall Is disposed so as to have an inclined surface such that an upper surface thereof becomes lower in a direction toward the partition wall, and an upper surface of the inclined portion is higher than an upper end of the partition wall. An elongated gap is formed between the lower end of the side plate and the upper surface of the inclined portion, which is located at a high position.

According to the above configuration, a gap is formed between the lower end of the side plate on the partition wall and the upper surface of the slope, and the gap has a shape that is elongated in a substantially horizontal direction. Condensed water generated on the small chamber side outside the ventilation path (condensed water generated by the refrigerant pipe existing outside the side plate in the evaporator) is returned to the small chamber inside the ventilation path by the slope portion and the gap, and is generated in the small chamber inside the ventilation path. Can be drained together with dew water. Since the gap is an opening communicating the small chamber inside the ventilation path and the small chamber outside the ventilation path, an increase in the area of the gap causes a decrease in efficiency in the dehumidifying and drying unit, but the gap is elongated in a substantially horizontal direction. Therefore, the area can be suppressed, and a decrease in the efficiency of dehumidification and drying can be suppressed. In addition, since the gap is elongated in a substantially horizontal direction, the entire gap is unlikely to be clogged with dust or rust, and it is possible to prevent water leakage due to drainage problems due to clogging of the gap. Leakage can be more reliably prevented.

In the dehumidifying and drying unit, the gap may be formed only in a region adjacent to the evaporator, and may not be formed in a region adjacent to the condenser.

According to the above configuration, it is possible to avoid the occurrence of a detour path in which air that escapes from the gap in the area adjacent to the evaporator to the small chamber outside the ventilation path returns to the small chamber in the ventilation path from the gap in the area adjacent to the condenser. In addition, it is possible to suppress a decrease in efficiency in the dehumidifying and drying unit due to the generation of such a bypass route.

In the dehumidifying / drying unit, the gradient portion may be in contact with the partition wall only in a region adjacent to the evaporator.

According to the above configuration, it is possible to minimize a decrease in the volume of the small chamber outside the ventilation path due to the inclined portion, and it is easy to accommodate the expansion valve and the refrigerant pipe in the small chamber outside the ventilation path.

In the dehumidifying and drying unit, an outer peripheral rib projecting upward from an upper surface of the gradient portion is provided at a position not in contact with any of an outer wall of the lower case member and the partition wall at an outer edge of the gradient portion. Configuration can be adopted.

According to the above configuration, it is possible to prevent the condensed water that has fallen on the inclined portion from flowing down to the bottom of the small chamber outside the ventilation path.

Further, in the dehumidifying / drying unit, a groove having a depth in a vertical direction is formed in the slope, and a bent portion of a refrigerant pipe connected to the compressor or the expansion valve is formed in the groove. May be arranged.

According to the above configuration, in the case of disposing the refrigerant pipe bent to release vibration on the gradient part, the refrigerant pipe is disposed in the groove to secure a bending space of the refrigerant pipe in the vertical direction. Can be.

洗濯 Further, in order to solve the above problem, a washing and drying machine according to a second aspect of the present invention is provided with the above-described dehumidifying and drying unit.

The dehumidifying / drying unit and the washer / dryer of the present invention allow the dew water generated on the small chamber side outside the ventilation path (condensation water generated by the refrigerant pipe existing outside the side plate in the evaporator) to flow into the ventilation path by the slope portion and the gap. It can be returned to the small chamber side and drained together with the dew water generated in the small chamber in the ventilation path. At this time, since the gap has a shape that is elongated in the substantially horizontal direction, the area of the gap is suppressed, the efficiency of dehumidification and drying can be suppressed, and the entire gap is unlikely to be clogged with dust or rust. It is also possible to avoid the occurrence of water leakage due to the problem of drainage due to the above, and it is possible to more reliably prevent the water leakage due to the condensed water.

FIG. 4 is a perspective view of a lower case member used in the dehumidifying and drying unit according to Embodiment 1. It is a top view of the lower case member shown in FIG. (A), (b) is sectional drawing which shows the boundary part of the 2nd small room and the 4th small room in the location adjacent to an evaporator in the dehumidification drying unit which concerns on Embodiment 1. FIG. It is a modification of the dehumidifying and drying unit according to Embodiment 1, and is a perspective view of a lower case member. It is a top view of the lower case member shown in FIG. FIG. 13 is a perspective view of a lower case member used in the dehumidifying and drying unit according to Embodiment 2. It is a top view of the lower case member shown in FIG. It is a figure which shows a dehumidification drying unit, and is a perspective view which shows the state which arrange | positioned each component of the refrigeration cycle in the lower case member. It is a top view of the dehumidification drying unit shown in FIG. It is a perspective view of the lower case member used in the conventional dehumidification drying unit. It is a top view of the lower case member shown in FIG.

[Embodiment 1]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The dehumidifying and drying unit according to the first embodiment has a configuration similar to that of the dehumidifying and drying unit shown in FIGS. 8 and 9, and differs only in the shape of the lower case member. Therefore, in the first embodiment, the lower case member 100 is shown in FIGS. 1 and 2, and only the features of the lower case member 100 will be described. FIG. 1 is a perspective view of the lower case member 100 as viewed obliquely from above, and FIG. 2 is a plan view thereof. In the lower case member 100 shown in FIGS. 1 and 2, the same components as those of the lower case member 500 shown in FIGS. 10 and 11 are denoted by the same reference numerals, and detailed description thereof will be omitted.

下 The lower case member 100 according to the first embodiment is different from the lower case member 500 shown in FIGS. 10 and 11 in the shape of the fourth small chamber 140. Specifically, the fourth small chamber 140 in the lower case member 100 has a slope 141. The slope portion 141 is provided so as to be continuous with the partition wall 101 between the second small chamber 120 and the fourth small chamber 140, and the upper surface thereof is in a direction toward the partition wall 101 (the direction of arrow A in FIG. 2). It is an inclined surface that becomes lower along. In addition, the arrangement area of the gradient portion 141 corresponds to the existence area of the refrigerant pipe 50 (the bent portion of the refrigerant pipe 50 disposed outside the side plate 60: see FIGS. 8 and 9) included in the evaporator 40 in a plan view. It is formed to include. As a result, the dew condensation water generated in the fourth small chamber 140 falls on the slope 141. In the slope 141, an outer peripheral rib 141 a protruding upward from the upper surface of the slope 141 is provided on an outer edge portion of the lower case member 100 that does not come into contact with any of the outer wall and the partition wall 101. The outer peripheral rib 141 a prevents the dew water falling on the inclined portion 141 from flowing down to the bottom of the fourth small chamber 140.

FIGS. 3A and 3B are cross-sectional views showing a boundary portion between the second small chamber 120 and the fourth small chamber 140 at a location adjacent to the evaporator 40. In the partition wall 101, a portion adjacent to the evaporator 40 (a portion in contact with the gradient portion 141) is lower than a portion adjacent to the condenser 20 (see FIG. 1). Therefore, when the side plate 60 of the evaporator 40 is placed on the partition wall 101, the side plate 60 is in a state of floating from the partition wall 101. Further, in the example shown in FIG. 3A, the upper surface of the gradient portion 141 (the upper surface at the side contacting the partition wall 101) is located at a position lower than the lower end of the side plate 60 and at a position higher than the upper end of the partition wall 101. Exists. As a result, a gap 103 having an elongated shape in a substantially horizontal direction is formed between the lower end of the side plate 60 and the upper surface of the slope 141, and the dew water dropped on the slope 141 passes through the gap 103 (FIG. 3A). It flows down to the second small chamber 120 side (through the path indicated by the thick arrow in the middle). Further, in the example shown in FIG. 3B, the upper surface of the gradient portion 141 (the upper surface on the side that is in contact with the partition wall 101) is at a position higher than the lower end of the side plate 60. By separating the upper surface of the portion 141 also in the horizontal direction, a gap 103 having an elongated shape in a substantially horizontal direction is generated therebetween. The condensed water that has fallen on the inclined section 141 flows through the gap 103 (through a path indicated by a thick arrow in FIG. 3B) and flows down to the second small chamber 120 side.

As described above, in the dehumidifying and drying unit using the lower case member 100 according to the first embodiment, the dew condensation water generated on the fourth small chamber 140 side is returned to the second small chamber 120 side by the gradient portion 141 and the gap 103, and the second The water can be drained from the drain hole 102 together with the dew water generated in the two small chambers 120. In addition, since the gap 103 is an opening that allows the second small chamber 120 and the fourth small chamber 140 to communicate with each other, an increase in the area of the gap 103 causes a decrease in efficiency of the dehumidifying and drying unit. On the other hand, by reducing the dimension of the gap 103 in the height direction, the area of the gap 103 can be suppressed, and a decrease in the efficiency of dehumidification and drying can be suppressed.

On the other hand, since the gap 103 can be elongated in a substantially horizontal direction, the entire gap 103 is unlikely to be clogged with dust or rust. In other words, it is possible to avoid the occurrence of water leakage due to a problem of drainage due to the clogging of the gap 103, and it is possible to more reliably prevent water leakage due to dew condensation water.

In the configuration shown in FIGS. 1 and 2, the slope portion 141 is not formed so as to be in contact with the entire partition wall 101, but is formed so as to be in contact with the partition wall 101 only at a position adjacent to the evaporator 40. I have. However, the present invention is not limited to this, and the slope portion 141 may be formed so as to be in contact with the partition wall 101 including at least a portion adjacent to the evaporator 40. For example, as shown in FIGS. 4 and 5, the slope portion 141 may be formed so as to be in contact with the entire partition wall 101.

However, since the bottom of the fourth small chamber 140 is raised in the area where the gradient section 141 is formed, if the area of the gradient section 141 is increased, the capacity of the fourth small chamber 140 is reduced accordingly. As shown in FIGS. 10 and 11, the fourth small chamber 140 also houses the expansion valve 30 and the refrigerant pipe 50 connected to the compressor 10 and the expansion valve 30. Therefore, the formation area of the gradient part 141 is a minimum necessary area as shown in FIGS. 1 and 2, and if the volume of the fourth small chamber 140 is secured, the expansion valve 30 and the refrigerant pipe 50 are It is preferable because it can be easily stored.

Further, even in the configuration shown in FIGS. 4 and 5, the area where the gap 103 shown in FIG. 3 is formed in the partition wall 101 is not the entire area of the partition wall 101 but only the area adjacent to the evaporator 40. It is preferable that This is because when the gap 103 extends to the area adjacent to the condenser 20, the air that has escaped from the gap 103 in the area adjacent to the evaporator 40 to the fourth small chamber 140 is removed from the gap 103 in the area adjacent to the condenser 20. This is because a detour path such as returning to the second small chamber 120 may occur, and the efficiency of the dehumidifying and drying unit may be significantly reduced. If the gap 103 is not formed in a region adjacent to the condenser 20, the formation of such a bypass can be avoided, and a decrease in efficiency in the dehumidifying and drying unit can be suppressed.

[Embodiment 2]
6 and 7 are views showing the lower case member 100 according to the second embodiment, FIG. 6 is a perspective view of the lower case member 100 as viewed obliquely from above, and FIG. 7 is a plan view thereof. .

The fourth small chamber 140 in which the gradient portion 141 is formed accommodates the expansion valve 30, the compressor 10, and the refrigerant pipe 50 connected to the expansion valve 30. Therefore, the fourth small chamber 140 requires an accommodation space for it. It is. In addition, since the vibration generated in the compressor 10 is transmitted to the refrigerant pipe 50 connected to the compressor 10 and the expansion valve 30 in particular, it is necessary to prevent breakage due to the vibration. Specifically, the refrigerant pipe 50 to which such vibration is transmitted is bent between the connecting members, and has a structure in which a stress caused by vibration is released at the bent portion. In addition, in order to pipe the refrigerant pipe 50 in a limited space, the refrigerant pipe 50 is configured to be bent in a vertical direction.

On the other hand, since the bottom of the fourth small chamber 140 is raised in the formation area of the gradient part 141, a sufficient bending space is secured when the refrigerant pipe 50 bent to release vibration is to be disposed on the gradient part 141. There are times when you can't. The lower case member 100 according to the second embodiment solves such a problem, and as shown in FIGS. 6 and 7, a groove 142 having a depth in the vertical direction is provided in the inclined portion 141. I have.

In the dehumidifying / drying unit using the lower case member 100 shown in FIGS. 6 and 7, when the refrigerant pipe 50 bent to release vibration on the gradient section 141 is disposed, the refrigerant pipe 50 is disposed in the groove 142. By doing so, it is possible to secure a bending space of the refrigerant pipe 50 in the vertical direction.

[Embodiment 3]
A suitable application example of the dehumidifying and drying unit described in the first and second embodiments is a washing and drying machine. Such a washing and drying machine is equipped with a dehumidifying and drying unit for drying laundry, and an air outlet of the dehumidifying and drying unit is connected to a washing tub via a duct. In the duct, a blower fan for sending dry air generated by the dehumidifying and drying unit to the washing tub is arranged. Such a structure is a known structure in a washing and drying machine.

However, the application example of the dehumidifying / drying unit of the present invention is not limited to this, but may be applied to a dehumidifier (including a floor-mounted indoor air conditioner) and the like. When the dehumidifying / drying unit (the dehumidifying / drying unit using the lower case member 500) shown in FIGS. 10 and 11 is applied to such a dehumidifier, dew water generated in the dehumidifying / drying unit is discharged to the drain hole 102 or the check valve 71. After being discharged from, it is collected in a water storage tank. For this reason, two drain paths from the dehumidifying and drying unit to the water storage tank, a path from the drain hole 102 and a path from the check valve 71, were necessary. On the other hand, when the dehumidifying / drying unit using the lower case member 100 is applied, the draining path from the dehumidifying / drying unit to the water storage tank may be only the path from the drain hole 102, and the structure of the dehumidifier is simplified. Can be

The embodiment disclosed this time is an example in all respects, and is not a basis for restrictive interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the claims. In addition, all changes within the meaning and scope equivalent to the claims are included.

[Description of incorporation]
This international application claims priority based on Japanese Patent Application No. 2018-136787 filed with the JPO on July 20, 2018, and discloses the entirety of Japanese Patent Application No. 2018-136787. The contents are incorporated by reference into this international application.

DESCRIPTION OF SYMBOLS 10 Compressor 20 Condenser 30 Expansion valve 40 Evaporator 50 Refrigerant pipe 60 Side plate 70 Drain pump 71 Non-return valve 100 Lower case member 101 Partition wall 102 Drain hole 103 Gap 110 First small room 120 Second small room (small room in ventilation path)
130 3rd small room 140 4th small room (small room outside ventilation path)
141 Slope 141a Outer peripheral rib 142 Groove 150 Fifth small chamber

Claims

A dehumidifying and drying unit containing a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator in a case having an air inlet and an air outlet,
The case includes a lower case member and an upper case member,
The lower case member,
A part of a ventilation path connecting the air inlet to the air outlet, and a small chamber in a ventilation path in which the evaporator and the condenser are arranged;
The ventilation path inside small chamber has a ventilation path outside small chamber divided by a partition wall,
The evaporator is a heat exchanger in which a refrigerant pipe is arranged in a meandering manner between two side plates, and is arranged such that one of the side plates is placed on the partition wall,
The ventilation path outside small chamber is disposed so as to be in contact with the partition wall, and a slope portion having an inclined surface whose upper surface becomes lower along a direction toward the partition wall is provided,
An upper surface of the slope portion is present at a position higher than an upper end of the partition wall, and an elongated gap is formed between a lower end of the side plate and an upper surface of the slope portion. Drying unit.
The dehumidifying and drying unit according to claim 1,
The dehumidifying and drying unit, wherein the gap is formed only in a region adjacent to the evaporator, and is not formed in a region adjacent to the condenser.
The dehumidifying and drying unit according to claim 1 or 2,
The dehumidifying / drying unit, wherein the slope portion is in contact with the partition wall only in a region adjacent to the evaporator.
The dehumidifying and drying unit according to any one of claims 1 to 3,
An outer peripheral rib projecting upward from the upper surface of the gradient portion is provided at a position on the outer edge of the gradient portion that does not contact any of the outer wall of the lower case member and the partition wall. Dehumidifying and drying unit.
The dehumidifying and drying unit according to any one of claims 1 to 4,
A groove having a depth in the vertical direction is formed in the slope portion,
A dehumidifying / drying unit, wherein a bent portion of a refrigerant pipe connected to the compressor or the expansion valve is disposed in the groove.
A washing and drying machine comprising the dehumidifying and drying unit according to any one of claims 1 to 5.