JP7054354B2 - Clothes dryer - Google Patents

Description

Embodiments of the present invention relate to a clothes dryer.

Conventionally, as a clothes dryer, a drum-type washer-dryer that employs a heat pump is known (see, for example, Patent Document 1). This drum-type washer-dryer is provided with an air supply port and an exhaust port in a water tank having a large number of holes and rotatably provided with a drum for accommodating clothes, and the air supply port and the exhaust port are connected outside the water tank. A circulation path is provided together with a fan device for blowing air, and an evaporator and a condenser of a heat pump are arranged in the circulation air passage so as to supply dry air into a water tank.

Japanese Unexamined Patent Publication No. 2006-230471

By the way, as for the positions of the air supply port and the exhaust port provided in the water tank, the air supply port is provided near the upper part of the back surface of the water tank from the viewpoint of allowing as much dry air as possible to pass through the clothing portion in the drum. The exhaust port is provided at the upper part on the front end side of the water tank as far as possible from the exhaust port. In this case, if the exhaust port is expanded toward the center of the water tank, it will be located relatively close to the air supply port, so the dry air is often discharged from the exhaust port without being used to dry the clothes. It was thought that it would become.

On the other hand, in recent years, in this type of washer-dryer, it is required to increase the circulating air volume of the drying air to improve the drying efficiency and shorten the drying time. It is conceivable to simply increase the capacity (rotational speed) of the fan device to increase the air volume, but this causes a problem that the noise caused by the fan device becomes large.
Therefore, we provide a clothes dryer capable of increasing the circulating air volume and enhancing the drying effect while suppressing the noise of the fan device.

The clothes dryer of the embodiment has an outer tank having an air supply port and an exhaust port, a rotating drum rotatably provided in the outer tank around a horizontal axis and accommodating clothes, and the air supply port and the exhaust. A circulation air passage provided so as to communicate between the mouth and the outside of the outer tank, a fan device for circulating the air in the rotating drum through the circulation air passage, and the circulation air in the circulation air passage. It is equipped with a dehumidifying and heating mechanism for dehumidifying and heating, the air supply port is provided on the back side of the outer tank, and the exhaust port is in the range of 1/3 of the front side of the outer tank and from there. Is provided at least at two positions on the rear side, and is separately provided on the cover constituting the front side of the outer tank and the main body constituting the rear side of the outer tank .

The right side view which shows the 1st Embodiment and shows the whole structure of the washer / dryer schematicly. Cross-sectional view of a main part of the exhaust duct cut horizontally in the thickness direction along the XX line of FIG. Longitudinal rear view showing the schematic configuration of the circulating air passage portion A perspective view from the back side showing the internal configuration of the washer / dryer with the outer box removed. The figure which shows the structure of the circulation air passage and a heat pump schematically. The right side view which shows the 2nd Embodiment and shows the whole structure of the washer / dryer schematicly.

(1) First Embodiment Hereinafter, the first embodiment applied to a drum-type washer-dryer equipped with a heat pump and capable of washing operation and drying operation will be described with reference to FIGS. 1 to 5. First, with reference to FIGS. 1 to 4, the overall configuration of the washer / dryer 1 as the clothes dryer according to the present embodiment will be described. As shown in FIGS. 1 and 3, the outer box 2 constituting the main body of the washer / dryer 1 has a substantially rectangular box shape, and the outer box 2 has an outer tank as shown in FIG. 4 and the like. The cylindrical water tank 3 is supported by an elastic support mechanism (not shown) in a state of being inclined backward. The water tank 3 is configured by connecting a water tank cover on the front side and a water tank main body on the rear side.

As shown in FIG. 1, a cylindrical rotary drum 4 in which clothes (laundry) are housed is rotatably supported in the water tank 3. The rotating drum 4 is configured to rotate about an inclined axis extending in the front-rear direction and inclined slightly backward from the horizontal. A large number of holes 4a for water passage and ventilation are formed in the peripheral wall portion and the rear wall portion of the rotary drum 4, and a plurality of holes (not shown) for stirring laundry are formed on the inner surface of the peripheral wall portion of the rotary drum 4. A baffle is provided.

Although not shown in detail, the front surface of the rotary drum 4 is provided with a circular opening through which clothes can be taken in and out. As shown in FIG. 1, a charging port 3a connected to an opening of the rotary drum 4 is formed on the front surface of the water tank 3. A door 5 for opening and closing the input port 3a is provided on the front surface of the outer box 2. An operation panel 6 is provided on the upper portion of the front surface portion of the outer box 2. Inside the outer box 2, for example, a control device 7 mainly composed of a microcomputer and controlling the entire washer / dryer 1 is provided.

As shown in FIGS. 3 and 4, a drum motor 8 made of, for example, an outer rotor type brushless motor constituting the drive mechanism is arranged at the rear portion of the water tank 3. As shown in FIG. 1, the tip of the rotary shaft 8a of the drum motor 8 penetrates the back surface of the water tank 3 and protrudes into the water tank 3, and is connected and fixed to the rear central portion of the rotary drum 4. With this configuration, the rotary drum 4 is directly driven to rotate by the drum motor 8. In this case, the rotating drum 4 is continuously rotated at a relatively high speed in the normal rotation direction, that is, in the clockwise direction when viewed from the front, in the dehydration stroke during the washing operation. During the washing operation, the rinsing process, and the drying operation during the washing operation, the rotating drum 4 repeatedly rotates forward and reverse at a relatively low speed.

Although not shown, a water supply mechanism provided with a water supply valve or the like for supplying water from tap water as a water supply source into the water tank 3 is provided in the upper part of the outer box 2. On the other hand, as shown in FIG. 1, a drainage pipe 9 is connected to the lower part of the water tank 3, and a drain valve 10 is provided in the middle of the drainage pipe 9. When water is supplied into the water tank 3 by the water supply mechanism with the drain valve 10 closed, the water is stored in the water tank 3. At this time, the water level in the water tank 3 is detected by a water level sensor (not shown). As the drain valve 10 is opened, the water in the water tank 3 is discharged to the outside of the machine through the drainage pipe line 9.

As shown in FIG. 1, the water tank 3 is provided with exhaust ports 11 and 12 for discharging air at a portion on the upper right side of the outer peripheral surface. Further, as shown in FIG. 3, an air supply port 18 for supplying dry air is provided at a portion near the upper center of the back surface of the water tank 3. In the present embodiment, the water tank 3 is provided with the first and second exhaust ports 11 and 12, and the details thereof will be described later. As shown in FIG. 3, the air supply port 18 is composed of, for example, three openings provided side by side.

Then, as shown in FIGS. 3 to 5, the inside of the outer box 2 is located outside the water tank 3, and dry air, that is, warm air is circulated and supplied into the water tank 3 (rotary drum 4) during the drying operation. A circulation air passage 20 for the purpose is provided. The inlet of the circulation air passage 20 is connected to the exhaust ports 11 and 12 of the water tank 3, and the outlet of the circulation air passage 20 is connected to the air supply port 18. In the present embodiment, the circulation air passage 20 incorporates a heat pump 21 (refrigeration cycle) as a dehumidifying and heating mechanism that dehumidifies and heats the circulating air to generate dry air. Along with this, a fan device 22 is provided to supply the air discharged from the exhaust ports 11 and 12 from the air supply port 18 into the water tank 3 and thus into the rotary drum 4 while circulating in the circulation air passage 20 in the direction of arrow A. There is.

Specifically, the circulation air passage 20 includes an exhaust duct 13, a rear duct 23, a heat pump duct 24, and an air supply duct 25. As shown in FIG. 1 and the like, the exhaust duct 13 is provided so that the front end side communicates with the exhaust ports 11 and 12 and the upper right side of the outer peripheral surface of the water tank 3 extends rearward and exhausts from the exhaust ports 11 and 12. Let the dry air flow backwards. By providing the exhaust duct 13 in a space composed of the cylindrical surface of the cylindrical water tank 3 and the square surface of the outer box 2 forming a rectangular box, the duct 13 can be made as large as possible in cross-sectional area. The upper end of the rear duct 23 is connected to the rear end of the exhaust duct 13. As shown in FIGS. 3 and 4, the rear duct 23 extends downward from the rear of the water tank 3, and its lower end is connected to the base end portion (left side in FIG. 3) of the heat pump duct 24.

The heat pump duct 24 is fixedly provided so as to extend in the right-left direction from the rear portion of the bottom portion of the outer box 2. The fan device 22 is provided on the tip end side (right end side in FIG. 3) of the heat pump duct 24. The fan device 22 is configured to include, for example, a centrifugal fan 33 and a fan motor 34 for driving the centrifugal fan 33 in a fan casing 32. The base end portion (lower end portion) of the air supply duct 25 is connected to the outlet portion of the fan casing 32. The air supply duct 25 extends upward behind the water tank 3 on the left side in the outer box 2, and its tip portion (upper end portion) is connected to the air supply port 18.

At this time, as shown in FIG. 3 and the like, the lower end of the rear duct 23 and the heat pump duct 24 are connected by a first connecting duct 14. The first connecting duct 14 is made of a flexible material such as rubber in a bellows-shaped cylinder, and is configured to be capable of absorbing vibration. Further, as shown in FIG. 3, the heat pump duct 24 (fan casing 32) and the lower end portion of the air supply duct 25 are connected by a second connecting duct 15. The second connecting duct 15 is also made of a flexible material such as rubber into a bellows-shaped cylinder, and is capable of absorbing vibration.

As shown in FIG. 5, in the heat pump duct 24, the evaporator 27 and the condenser 28 constituting the heat pump 21 are arranged in order on the left and right (left and right in FIG. 3). The heat pump 21 is configured by connecting a compressor 29, a condenser 28, a throttle valve 30 as a depressurizing means, and an evaporator 27 in a closed loop shape by a refrigerant pipe 31. A required amount of refrigerant is sealed inside the heat pump 21 and circulates in the refrigerant pipe 31. At this time, the condenser 28 functions as a heating means for heating the dry air, and the evaporator 27 functions as a dehumidifying means for removing moisture from the dry air.

During the drying operation, the heat pump 21 is driven by the compressor 29, so that the gaseous refrigerant discharged from the compressor 29 flows into the condenser 28 and is condensed by heat exchange in the condenser 28 to form a liquid. It is used as a refrigerant. The liquid refrigerant flowing out of the condenser 28 is expanded by the throttle valve 30 to be atomized, and the atomized refrigerant flows into the evaporator 27. Then, in the evaporator 27, the refrigerant is vaporized by heat exchange with the outside air, and the gaseous refrigerant is returned to the compressor 29. A circulation is performed in which the refrigerant is compressed by the compressor 29 and discharged at high temperature and high pressure.

By driving the fan device 22 together with the drive of the heat pump 21, the air in the water tank 3 (rotary drum 4) is discharged from the exhaust ports 11 and 12 as shown by arrows A in FIGS. 3 and 5. 13. It reaches the heat pump duct 24 through the rear duct 23. Then, the air that has passed through the rear duct 23 flows through the heat pump duct 24, passes through the evaporator 27 and the condenser 28 in order, then flows into the air supply duct 25, passes through the air supply port 18 and the hole 4a, and is a rotating drum. A cycle of being supplied within 4 is performed.

This air circulation removes moisture from the clothes in the water tank 3 (rotary drum 4), and the air containing a large amount of steam is cooled through the evaporator 27 portion in the heat pump duct 24, so that the steam is released. It is condensed (or sublimated) and dehumidified. Then, the dehumidified air is continuously heated by passing through the condenser 28 portion to become dry warm air, which is again supplied into the rotating drum 4 through the air supply duct 25 and is used for drying clothes.

A plurality of temperature sensors 35 for detecting the temperature of the refrigerant and the temperature of the dry air are provided in the main part of the heat pump 21 and the circulation air passage 20. The control device 7, which will be described later, drives the heat pump 21 and the fan device 22 and rotates the rotary drum 4 in one direction to execute a drying operation. At this time, the control device 7 drives and controls the heat pump 21 (compressor 29) and the fan device 22 based on the detected temperature of the temperature sensor 35 group.

Now, the exhaust ports 11 and 12 and the exhaust duct 13 will be described. As shown in FIGS. 1 and 2, in the present embodiment, the exhaust ports 11 and 12 are provided side by side on the upper right side of the outer peripheral surface of the water tank 3 when viewed from the front. The first exhaust port 11 on the front side is provided so as to open in a square shape on the water tank cover, and is located within a range of 1/3 of the front side of the outer peripheral surface of the water tank 3. The second exhaust port 12 is provided in the water tank body behind the first exhaust port 11, and in this case, the outer peripheral surface of the water tank 3 is divided into three equal parts in the front-rear direction. It is located within the range and is also provided so as to open in a quadrangle.

Further, in the present embodiment, as shown in FIG. 2, the exhaust ports 11 and 12 are provided with filters 16 and 17 for capturing lint (lint) and the like from the circulating wind, respectively. These filters 16 and 17 are made of, for example, a non-woven fabric, and are attached so as to close the exhaust ports 11 and 12 from the outer surface side of the water tank 3 while being held by a grid-like support frame. Although not shown in detail, airtightness is ensured between the filters 16 and 17 (support frame) and the exhaust ports 11 and 12 by packing or the like. The shape of each of the exhaust ports 11 and 12 of the water tank 3 may be formed in a grid pattern, and a filter may be directly attached to the grid-like portion to integrate with the water tank 3. As a result, the exhaust ports 11 and 12 themselves are reinforced, and the effect of suppressing the deformation of the water tank 3 can be obtained.

At this time, in the present embodiment, as shown in FIG. 2, the second exhaust port 12 is configured to be slightly larger (longer in the front-rear direction) than the first exhaust port 11. By the way, in the conventional washer / dryer, the cross-sectional area of the exhaust port having a cylindrical shape is about 3200 mm ² (diameter 64 mmφ), whereas in the present embodiment, the opening areas of the exhaust ports 11 and 12 are the whole. The total is 10,000 mm ² or more. The cross-sectional area of the exhaust port can be up to about 20000 mm ² . As described above, it is desirable that the opening area of the entire exhaust ports 11 and 12 is about twice or more and five times or less that of the conventional exhaust ports. The cross-sectional area of the circulating air passage 20 is about 4000 mm ² on average.

Then, in the present embodiment, as shown in FIGS. 1 and 4, the exhaust duct 13 is configured by attaching an air passage cover 19 to the outer surface of the water tank 3 so as to communicate with the exhaust ports 11 and 12. ing. The air passage cover 19 has an upper wall, a right side wall, and an upper half portion of the left side wall, and the lower half portion of the lower surface and the left side surface, that is, a portion in contact with the water tank 3 is opened, and is substantially long in the front-rear direction. It is configured in a rectangular box shape. Further, the front end portion of the air passage cover 19 is closed, and the rear end portion is opened and connected to the rear duct 23.

The washer / dryer 1 configured as described above is controlled by the control device 7 as described above. That is, an operation signal such as an operation course setting is input to the control device 7, and a detection signal from the water level sensor and the temperature sensor 35 group is input to the control device 7. Then, the control device 7 is a compressor of the water supply valve, the drain valve 10, the drum motor 8, the fan device 22 (fan motor 34), and the heat pump 21 based on the input signal from each sensor and the control program stored in advance. It controls 29 and the like, and automatically executes the washing operation and the drying operation including the washing process, the rinsing process, and the dehydration process according to the set operation course. Since the details of each of these washing and drying operations are well known, the description thereof will be omitted.

Next, the operation of the washer / dryer 1 having the above configuration will be described . In the washer / dryer 1, for example, the washing operation of the clothes put in the rotating drum 4 is performed, and subsequently, the drying operation for a predetermined time is executed. In this drying operation, the compressor 29 is driven to operate the heat pump 21, and the fan device 22 is driven. Further, the rotating drum 4 is rotated in both forward and reverse directions at a low speed by driving the drum motor 8. As a result, as shown by arrows A in FIGS. 1, 3, and 5, the air in the water tank 3 (rotary drum 4) passes through the circulation air passages 20 from the exhaust ports 11 and 12 and passes through the air supply port 18. The circulation that is supplied into the water tank 3 is performed.

As a result, circulating air (dry warm air) is supplied into the water tank 3 from the air supply port 18 on the back side of the water tank 3. The dry, high-temperature air passes through the rotating drum 4 and is used for drying clothes (evaporation of moisture), and then the air containing moisture and having a lowered temperature is discharged from the exhaust ports 11 and 12. Further, lint (lint) and the like from clothes are captured by the filters 16 and 17 when passing through the exhaust ports 11 and 12 together with the circulating air. Therefore, the lint can be eliminated without flowing into the circulation air passage 20 after that.

Here, conventionally, when the air supply port 18 is located on the back surface of the water tank 3, but the exhaust port is located near the center or the rear of the outer peripheral surface of the water tank 3, the circulating air is located in the water tank 3 (rotating). It was thought that the clothes did not reach the front side of the drum 4) and quickly escaped to the outside of the water tank 3 (so-called shortcut), making it difficult to dry clothes and reducing the drying efficiency. However, according to the research of the present inventor, even if the exhaust port located on the front side (1/3 range of the front side) of the water tank 3 is extended from there to the central part of the water tank 3 and further to the rear part. It was found that the drying efficiency does not decrease due to the escape of the drying air, but rather the air volume of the circulating air can be increased, thereby improving the drying efficiency.

In the present embodiment, the air supply port 18 is provided on the inner side of the outer tank, the first exhaust port 11 is provided in the range of 1/3 of the front side of the water tank 3, and the exhaust port 12 is provided on the rear side of the first exhaust port 11. By providing the exhaust ports 11 and 12 at two locations, it is possible to increase the circulating air volume and improve the drying efficiency of clothes. In this case, since it is not necessary to increase the rotation speed of the fan device 22 (fan motor 34) in order to increase the air volume of the circulating air, the noise of the fan device 22 can be suppressed.

Even if one large exhaust port is provided, such as by simply widening the exhaust port to the rear side, the flow of dry air is improved, but that causes a decrease in the strength of the water tank 3. There is a risk. On the other hand, as in the present embodiment, the exhaust ports 11 and 12 are divided into a plurality of exhaust ports 11 and 12, and the exhaust ports 11 and 12 are provided in each of the water tank cover and the water tank body, so that the formation is easy and the strength decrease of the water tank 3 is suppressed. Can be done.

Further, although detailed description is omitted, in the washing operation, steps such as washing, rinsing, and dehydration are executed. In the easy-to-wash and rinse process, water is stored in the water tank 3 and the rotating drum 4 is rotated. Further, in the dehydration process, the water contained in the clothes is repelled by centrifugal force by the rotation of the rotating drum 4. In such a washing operation, the lint captured by the filters 16 and 17 in the previous drying operation and adhering to the inner surface of the filters 16 and 17 can be washed away. Therefore, it is not necessary to clean the filters 16 and 17, and it is possible to realize so-called maintenance-free operation.

As described above, according to the washer / dryer 1 of the present embodiment, the following effects can be obtained. That is, in the present embodiment, the air supply port 18 is provided on the back side of the water tank 3, and the exhaust ports 11 and 12 are provided at two locations, one third of the front side of the water tank 3 and the rear side thereof. I tried to install it in a position. As a result, noise can be suppressed by not increasing the rotation speed of the fan device 22, and the circulating air volume can be increased to enhance the drying effect. Further, by providing the exhaust ports 11 and 12 separately, it is possible to suppress a decrease in the strength of the water tank 3.

In the present embodiment, the exhaust ports 11 and 12 are provided with filters 16 and 17 for capturing lint from the circulating wind, respectively. Thereby, the lint discharged from the clothes can be captured by the filters 16 and 17, and the adverse effect due to the outflow of the lint can be prevented. Further, by sufficiently increasing the total area of the exhaust ports 11 and 12, the pressure loss due to the filters 16 and 17 can be reduced to a level that does not cause any problem. The lint captured by the filters 16 and 17 can be removed by an operation during washing or dehydration, and maintenance-free operation can be achieved.

Further, in the present embodiment, an exhaust duct 13 serving as an air passage for exhausting air from the inside of the water tank 3 through the exhaust ports 11 and 12 is provided on the outer surface of the water tank 3 so that the air passage cover 19 communicates with the exhaust ports 11 and 12. It was configured by providing. As a result, the exhaust duct 13 can be provided with a simple configuration, and as a result, the assembly workability is improved. Further, in the past, in order to connect the cylindrical exhaust port and the exhaust duct, a rubber bellows-shaped connection duct capable of absorbing vibration was required, but in the present embodiment, the exhaust ports 11 and 12 are required. The bellows-shaped connection duct of the part is not required, and the configuration can be simplified accordingly.

(2) Second Embodiment, Other Embodiments Next, the second embodiment will be described with reference to FIG. The difference between the washer / dryer 41 according to the second embodiment and the washer / dryer 1 according to the first embodiment is the configuration of the exhaust duct 42 portion. That is, in the present embodiment, instead of providing the filters in the exhaust ports 11 and 12, the filter unit 43 is detachably provided in the exhaust duct 42. Hereinafter, the same parts as those of the first embodiment will be designated by the same reference numerals, new illustrations and detailed explanations will be omitted, and the points different from those of the first embodiment will be mainly described.

Also in this second embodiment, the air supply port 18 is provided on the back side (rear surface) of the water tank 3, and the range of 1/3 of the front side of the outer peripheral surface of the water tank 3 and the rear side thereof. Exhaust ports 11 and 12 are provided at two locations. However, these exhaust ports 11 and 12 are not provided with a filter. The exhaust duct 42 extends in the front-rear direction and constitutes a part of the circulation air passage 20 that guides the circulating air discharged from the exhaust ports 11 and 12 to the rear, that is, the upper end of the rear duct 23. The exhaust duct 42 is also formed by providing an air passage cover 44 on the outer surface of the water tank 3 so as to communicate with the exhaust ports 11 and 12.

A rectangular opening 44a is provided on the upper surface of the air passage cover 44 behind the exhaust port 12, and the filter unit 43 is detachably fitted through the rectangular opening 44a. It is configured to be. As is well known, the filter unit 43 has a thin rectangular box-shaped lid portion 45 located at the upper portion and a holder portion 46 provided at the lower portion thereof.

Although not shown in detail, the holder portion 46 has a substantially rectangular box shape with an open front surface, and an opening is formed from the bottom surface portion to the rear surface portion, and the holder portion 46 is linted so as to close the opening portion. A filter made of, for example, a non-woven fabric is provided to capture the material. The lid portion 45 has a handle portion on the upper surface thereof, and is configured to fit tightly into the rectangular opening 44a portion. As a result, in the mounted state of the filter unit 43, the opening on the front surface of the holder portion 46 is continuous with the air passage, and the filter is arranged facing the air passage to capture the lint from the circulating wind.

At this time, an opening 47 for inserting and removing the filter unit 43 is provided on the upper surface of the outer box 2, and a lid 48 for opening and closing the opening 47 is provided so as to be openable and closable. The user took out the filter unit 43 from the outer box 2 and captured it by opening the lid 48 and lifting the handle portion of the lid portion 45 of the filter unit 43 while the washer / dryer 41 was stopped. It is possible to dispose of the lint and clean the filter.

Also in such a second embodiment, as in the first embodiment, the air supply port 18 is provided on the back side of the water tank 3, and the exhaust ports 11 and 12 are provided on the back side of the water tank 3, and the exhaust ports 11 and 12 are 1/3 of the front side of the water tank 3. It was installed at two locations, one in the range of the above and the other behind it. As a result, it is possible to obtain an excellent effect that the circulating air volume can be increased and the drying effect can be enhanced while suppressing the noise of the fan device 22.

Then, in the present embodiment, the exhaust duct 42 is provided with a removable filter unit 43 for accommodating a filter that captures lint from the circulating air. As a result, the lint discharged from the clothes can be captured by the filter unit 43, and can be eliminated without flowing into the subsequent circulation air passage 20. Since the filter unit 43 is removable, it is possible to easily dispose of the captured lint and clean the filter unit 43.

In each of the above embodiments, the water tank 3 is provided with two exhaust ports 11 and 12, but three or more exhaust ports may be provided, and the rear portion 1 of the outer peripheral surface of the water tank 3 may be provided. The exhaust port may be arranged at the position of / 3. Specific numerical values such as the size (opening area) of the exhaust ports 11 and 12 are only shown as an example, and can be changed as appropriate. In addition, for example, the dehumidifying and heating mechanism is not limited to the one provided with a heat pump, and the hardware configuration of each part of the clothes dryer may be such that a water-cooled dehumidifying mechanism and a heater heating may be used to generate warm air. Various changes are possible. It may be a clothes dryer that does not have a washing function and only performs drying.

Each of the above embodiments is presented as an example and is not intended to limit the scope of the invention. This novel embodiment 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, 41 are a washer / dryer (clothes dryer), 2 is an outer box, 3 is a water tank (outer tank), 4 is a rotary drum, 7 is a control device, 8 is a drum motor, and 11 and 12 are exhaust ports. , 13 and 42 are exhaust ducts, 16 and 17 are filters, 18 is an air supply port, 19 and 44 are air passage covers, 20 is a circulation air passage, 21 is a heat pump (dehumidifying and heating mechanism), 22 is a fan device, and 23 is. The rear duct, 24 is a heat pump duct, 25 is an air supply duct, and 43 is a filter unit.

Claims (4)

An outer tank with an air supply port and an exhaust port,
A rotating drum rotatably provided around the horizontal axis in the outer tank and accommodating clothes,
A circulation air passage provided so as to communicate between the air supply port and the exhaust port on the outside of the outer tank,
A fan device that circulates the air in the rotating drum through the circulation air passage, and
It is equipped with a dehumidifying and heating mechanism that dehumidifies and heats the circulating air in the circulating air passage.
The air supply port is provided on the back side of the outer tank, and is provided.
The exhaust port is provided at least at two positions, one third of the front side of the outer tank and the rear side of the exhaust port , and the cover and the cover constituting the front side of the outer tank. A clothes dryer provided separately from the main body that constitutes the back side of the outer tank . The clothes dryer according to claim 1, wherein each of the exhaust ports is provided with a filter for capturing lint from the circulating air. The circulation air passage is configured to include an exhaust duct serving as an air passage for exhausting air from the inside of the rotating drum through the exhaust port.
The clothes dryer according to claim 1 or 2, wherein the exhaust duct is formed by providing an air passage cover on the outer surface of the outer tank so as to communicate with the exhaust port. The circulating air passage is provided on the outside of the outer tank and includes an exhaust duct that serves as an air passage for exhausting air from the inside of the rotating drum through the exhaust port. The exhaust duct captures lint from the circulating air. The clothes dryer according to claim 1, wherein a filter unit for accommodating the filter is detachably provided.

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