TWI434973B - Dryer and Laundry Dryer (2) - Google Patents

Description

Dryer and washer dryer (2) Background technique

The present invention relates to a dryer and a washer dryer having a heat pump device.

Description of the background art

A dryer for drying clothes, such as a drum type laundry dryer, typically has a heat pump mechanism. The heat pump mechanism can dry the clothes less than the power consumption of the device using the heater. Further, the heat pump mechanism can dehumidify the dry air used for drying the laundry without using cooling water and heat recovery by dry air. Therefore, the heat pump mechanism is advantageous in terms of water saving and energy saving as compared with a device that uses a heater to dry clothes (refer to Japanese Laid-Open Patent Publication No. 2006-110394).

The heat pump mechanism generally includes a compressor that compresses the refrigerant, a heat exchanger that exchanges heat with the dry air that dries the clothes, and a circulation pipe that defines a circulation path of the refrigerant between the compressor and the heat exchanger. The heat exchanger generally includes a dehumidifier that dehumidifies dry air, and a heater that heats the dry air.

Figure 11 is a schematic representation of a prior laundry dryer. Use the Figure 11 to illustrate the previous washer dryer.

The conventional drum type laundry dryer 150 includes a housing 100, a rotary drum 103 that rotates in the housing 100, and a water tank 102 that houses the rotary drum 103. In the following description, the internal space of the casing 100 formed below the water tank 102 is referred to as a lower space. Moreover, the internal space of the frame 100 formed above the water tank 102 is called an upper space.

The washing and drying machine 150 further includes a heat pump mechanism 130 disposed in the lower space, and a circulation air passage 108 connecting the heat pump mechanism 130 and the water tank 102. Further, the washing and drying machine 150 further includes a filter unit 140 for collecting lint (dust components such as a thread) generated in the step of drying the laundry, and a blower for flowing the dry air of the dry laundry in the circulation air passage 108. 109. The filter unit 140 and the blower 109 are attached to the circulation air passage 108.

The dry air is discharged from the upper portion of the water tank 102 and then passes through the filter portion 140. The filter portion 140 removes lint from dry air. The blower 109 then sends dry air to the heat pump mechanism 130. The heat pump mechanism 130 includes a heat exchanger (not shown) that exchanges heat with dry air. The heat exchanger dehumidifies and heats the dry air. Thereafter, the dry air flows into the rotary drum 103 again.

As described above, since the heat pump mechanism 130 of the washer-dryer 150 is disposed in the lower space of the casing 100, the circulation air path 108 for defining the circulation path of the dry air between the water tank 102 and the heat pump mechanism 130 is formed to be long. . The pressure loss of the dry air during the passage of the long circulation air passage 108 becomes large. Therefore, the previous laundry dryer 150 has difficulty achieving a rapid circulation speed of dry air and/or a large circulation amount.

The flow rate of the insufficient dry air in the circulation air passage 108 reduces the amount of heat exchange between the heat exchanger disposed in the circulation air passage 108 and the dry air. As a result, the drying of the clothes takes time. Furthermore, the power required to dry the clothes also increases.

Summary of invention

The object of the present invention is to provide a dryer and a laundry dryer which can use a short circulation air path for specifying a circulation path of dry air to increase the heat exchange rate of the heat exchanger, achieve a shortened drying time and reduce power consumption. Dry machine.

A dryer according to one aspect of the present invention includes: a frame; a groove supported by the outer casing; and a rotary drum rotatably mounted in the outer groove for accommodating the laundry of the object; a heat pump device including a heat exchanger for drying the laundry in the rotary drum; a blower for supplying air to dry air; and a circulation path for connecting the outer tank and the heat pump device to regulate circulation of the dry air from the blower portion And an air passage disposed in the circulation air passage to prevent dust components from entering the filter portion of the heat exchanger; wherein the filter portion and the heat exchanger are disposed in the outer groove formed in the frame body The upper portion of the space above the filter portion, the heat exchanger, and the air blowing portion are sequentially disposed along the flow direction of the dry air.

A washing and drying machine according to one aspect of the present invention includes: a frame; is supported in the frame body for storing a groove other than the washing water; and rotating in the outer groove for washing and drying the laundry a heat pump device including a heat exchanger for drying the laundry in the rotary drum; a blower for blowing dry air; and a circulation path for connecting the outer tank and the heat pump device to circulate the dry air from the air blow portion a circulation air passage; and a filter portion disposed in the circulation air passage for preventing dust components from entering the heat exchanger; wherein the filter portion and the heat exchanger are disposed in the frame body An upper space above the outer tank, and the filter unit, the heat exchanger, and the air blowing unit are sequentially disposed along a flow direction of the dry air.

Simple illustration

Fig. 1 is a cross-sectional view showing a schematic configuration of a drum type washing and drying machine according to an embodiment.

Fig. 2 is a partial view showing the front side of the drum type washing and drying machine shown in Fig. 1.

Fig. 3 is a perspective view schematically showing the internal structure of the drum type washing and drying machine shown in Fig. 1.

Fig. 4 is a schematic top view of the drum type washer dryer shown in Fig. 1.

Fig. 5 is a cross-sectional view taken along line A-A of Fig. 4;

Fig. 6 is a perspective view schematically showing the configuration of the upper portion of the drum type washing and drying machine shown in Fig. 1.

Fig. 7 is a perspective view schematically showing a supporting member in the drum type washing and drying machine shown in Fig. 1.

Fig. 8 is a perspective view schematically showing the drum type washing and drying machine shown in Fig. 1.

Fig. 9 is a perspective view schematically showing another arrangement of the supporting members in the drum type washing and drying machine shown in Fig. 1.

Fig. 10 is a perspective view schematically showing the drum type washing and drying machine shown in Fig. 9.

Figure 11 is a perspective view schematically showing a prior laundry dryer using a heat pump to dry laundry.

The best form for implementing the invention

Hereinafter, a dryer according to an embodiment will be described with reference to the drawings. In the present embodiment, the dryer is exemplified as a drum type washing and drying machine. Instead, the dryer can also be other laundry dryers. Instead, the dryer can also be a drying device that does not have a laundry function. Therefore, the detailed configurations described below are not intended to limit the principles of the embodiments.

(The overall composition of the drum type washer dryer)

Fig. 1 is a schematic cross-sectional view of a drum type washer dryer. Figure 2 is a perspective view partially showing the front side of the drum type laundry dryer. Fig. 3 is a perspective view schematically showing the internal structure of the drum type washing and drying machine.

The washing and drying machine 500 includes a casing 1 including a wall portion defining an internal space for accommodating various elements for washing and drying the laundry (for example, the rotary drum 3, the water tank 2, and the heat pump device 30, which will be described later). . The wall portion of the casing 1 includes a front wall 1e disposed on the front side, a rear wall 1d disposed on the opposite side to the front wall 1e, and a right side wall 1a and a right side wall 1a disposed between the front wall 1e and the rear wall 1d. The left side wall 1b is disposed on the opposite side. The front wall 1e, the rear wall 1d, the right side wall 1a, and the left side wall 1b are erected in the vertical direction. In the present embodiment, at least one of the right side wall 1a and the left side wall 1b is exemplified as a side wall. Moreover, the right side wall 1a is illustrated as a 1st side wall. The left side wall 1b is exemplified as the second side wall.

The wall portion of the frame 1 includes an upper wall 1c surrounded by an upper edge of the front wall 1e, the rear wall 1d, the right side wall 1a, and the left side wall 1b, and the front wall 1e, the rear wall 1d, the right side wall 1a, and the left side wall. The bottom wall 1f surrounded by the lower edge of 1b.

An input port for entering and exiting the laundry is formed on the front wall 1e. The washer dryer 500 further includes a door body 5 for closing or opening the input port. The door body 5 attached to the front wall 1e is rotated between an open position (see Fig. 1) of the open input port and a closed position (see Fig. 2) of the closed input port.

The washer-dryer 500 further includes a rotary drum 3 having a substantially cylindrical shape disposed in the housing 1. The rotary drum 3 for washing and drying the laundry includes a peripheral wall 531 that forms an opening that communicates with the insertion opening of the front wall 1e, and a bottom wall 532 that faces the opening formed by the peripheral wall 531. The laundry that is put in by the input port is accommodated in the rotary drum 3.

The washing and drying machine 500 further includes a substantially cylindrical water tank 2 disposed in the casing 1. The water tank 2 includes a peripheral wall 521 surrounding the peripheral wall 531 of the rotary drum 3, and a bottom wall 522 along the bottom wall 532 of the rotary drum 3. The washing water for washing the laundry is stored in the water tank 2. In the present embodiment, the water tank 2 is exemplified as an outer tank.

The washing and drying machine 500 further includes a water supply pipe (not shown) for supplying water to the water tank 2. The water supply pipe connected to the water tank 2 includes a water supply valve (not shown). The water supply valve is used to control the water supply to the water tank 2. The washing and drying machine 500 further includes a drain pipe (not shown) for draining water from the water tank 2. The drain pipe connected to the water tank 2 includes a drain valve (not shown). The drain valve is used to control the drainage from the water tank 2.

A discharge port 11 is formed in an upper portion of the peripheral wall 521 of the water tank 2. The dry air for drying the laundry contained in the rotary drum 3 rotatably housed in the water tank 2 is efficiently discharged by the discharge port 11. In the present embodiment, in order to prevent the washing water from flowing out of the discharge port 11, the discharge port 11 is formed above the maximum liquid level of the washing water in the water tank 2/rotary drum 3. When the drying device not having the washing function is used as the dryer, the discharge port 11 can be formed at any place of the peripheral wall 531 or the bottom wall 532 of the rotary drum 3.

As shown in FIG. 3, the washer-dryer 500 further includes a damper 523 including an upper end portion connected to the peripheral wall 521 of the water tank 2 and an end portion connected to the lower end of the bottom wall 1f of the casing 1. The rotary drum 3 rotates inside the water tank 2. The damper 523 that supports the water tank 2 in the casing 1 absorbs vibration caused by the rotation of the rotary drum 3.

The washing and drying machine 500 further includes a drive motor 7 that rotates the rotary drum 3. The drive motor 7 is attached to the outer surface of the bottom wall 522 of the water tank 2. The rotation shaft of the rotary drum 3 that is rotated by the drive motor 7 is inclined upward toward the front.

The clothing in the rotary drum 3 sometimes produces a weight imbalance of the rotary drum 3 and/or the water tank 2. As a result, the vibration caused by the rotation of the rotary drum 3 is transmitted to the water tank 2. The damper 523 supporting the water tank 2 attenuates the vibration from the water tank 2.

As described above, the door body 5 for opening and closing the input port of the rotary drum 3 is attached to the front wall 1e of the casing 1. The user can open the door body 5 to enter and exit the clothes of the rotary drum 3.

As shown in FIG. 2, the washing and drying machine 500 further includes an operation panel 4. The operation panel 4 is disposed along the upper edge of the front wall 1e of the casing 1. The operation panel 4 includes various operation keys 541 for operation of the laundry dryer 500, and a display window 542 for displaying various information such as an operation mode of the laundry dryer 500.

The washer-dryer 500 further includes a lotion input unit 10 for disposing a lotion in the housing 1. The lotion input portion 10 disposed under the left end of the operation panel 4 can be pulled forward. The lotion input unit 10 includes a storage container (not shown) that holds the lotion inside the casing 1. The storage container may be divided into, for example, a first housing portion (not shown) for accommodating the powder lotion, a second housing portion (not shown) for accommodating the liquid detergent, and a third housing for containing the softener. Department (not shown).

(heat pump device)

Figure 4 is a schematic plan view of the washer-dryer 500. Fig. 5 is a cross-sectional view of the line A-A shown in Fig. 4. Fig. 6 is a perspective view schematically showing the configuration of the upper portion of the washing and drying machine 500. The heat pump device will be described using FIG. 1 and FIG. 3 to FIG.

The laundry dryer 500 is provided with a heat pump device 30 for drying the laundry. The washing and drying machine 500 dehumidifies and heats the dry air discharged from the rotary drum 3 using the heat pump device 30.

As described above, the casing 1 forms an internal space in which various devices such as the rotary drum 3, the water tank 2, and the heat pump device 30 are housed. In the following description, a narrow space above the water tank 2 in the internal space of the casing 1 is referred to as an upper space. Further, a space below the water tank 2 in the internal space of the casing 1 is referred to as a lower space. The various components of the heat pump device 30 and the circulation path of the dry air formed between the heat pump device 30 and the rotary drum 3 are mostly disposed in the upper space.

As shown in FIG. 1, the washing and drying machine 500 further includes a circulation air passage 8 that connects the water tank 2 and the heat pump device 30. The circulation air passage 8 includes an upstream air passage 581 extending upward from the discharge port 11 and a downstream air passage 582 connected to the bottom wall 522 of the water tank 2.

The washing and drying machine 500 further includes a filter unit 40 disposed between the upstream air passage 581 and the heat pump device 30. The filter portion 40 connected to the upstream air passage 581 removes lint (referred to as a dust component of the thread) in the dry air. After the dry air, it flows into the heat pump device 30. As described above, the heat pump device 30 dehumidifies and heats the dry air.

The washer-dryer 500 further includes a blower unit 9 disposed between the heat pump device 30 and the downstream air passage 582. The blower unit 9 sucks dry air from the discharge port 11 of the water tank 2, and then feeds the dry air into the rotary drum 3 again through the downstream air passage 582. In this manner, the dry air sent from the air blowing unit 9 circulates in accordance with the circulation path defined by the circulation air path 8.

As described above, in the present embodiment, various components (the filter unit 40, the heat pump device 30, and the air blowing portion 9) of the circulation path of the dry air formed between the heat pump device 30 and the rotary drum 3 are collectively disposed. Upper space. As a result, the pressure loss of the dry air can be reduced, and a dry air having a rapid circulation speed and/or a sufficient air volume can be obtained.

As shown in FIGS. 3 to 5, the heat pump device 30 includes a compression unit 31 for compressing the refrigerant, a heat exchanger HEX for drying the laundry in the rotary drum 3, and a pressure for decompressing the high pressure refrigerant. The pressure reducing portion 33 of the expansion valve (or capillary tube). The heat exchanger HEX includes a heating unit 32 that compresses the heat generated by the compression unit 31 to become a high-temperature and high-pressure refrigerant, and a dehumidifying unit 34 that takes heat from the surroundings by a refrigerant that is depressurized and becomes a low pressure. In the present embodiment, the heating unit 32 is exemplified as a heat radiation unit. The dehumidifying portion 34 is exemplified as a heat absorbing portion.

As shown in FIG. 3, the heat pump device 30 further includes a line 20 that connects the compression unit 31, the heating unit 32 that constitutes the heat exchanger HEX, and the dehumidifying unit 34 and the pressure reducing unit 33. The refrigerant flowing in the pipe 20 circulates between the compression unit 31, the heating unit 32, the dehumidifying unit 34, and the decompressing unit 33.

In Fig. 3, a bus bar G extending from the top portion 2a of the bottom wall 522 of the water tank 2 (the uppermost point of the circular bottom wall 522) is shown. The bus bar G is present at the uppermost position among the bus bars on the outer surface of the peripheral wall 521 of the water tank 2 .

The compression unit 31 is disposed above the peripheral wall 521 of the water tank 2, and is disposed offset from the bus bar G to the right side wall 1a. The compression unit 31 includes a bottom surface 31a located below the bus bar G. Since the upper space above the peripheral wall 521 of the water tank 2 is effectively used in the compression portion 31, the heat pump device 30 including the compression portion 31 can be appropriately housed in the small casing 1. Since the position of the compression portion 31 is shifted to the right side wall 1a (or the left side wall 1b) with respect to the bus bar G at the uppermost position, the height of the frame body 1 is not increased, and the heat pump device 30 can be disposed in the upper space. As such, a small laundry dryer 500 can be provided.

In the heating unit 32, the refrigerant flowing in the line 20 exchanges heat with the surrounding air (dry air flowing from the filter unit 40 into the heating unit 32). As a result, the refrigerant is heated and vaporized, and the water component in the dry air is dew condensation. As a result, the water component in the dry air is removed.

The refrigerant after vaporization flows into the compression portion 31. The compression unit 31 compresses the refrigerant to a high temperature and a high pressure. The high temperature and high pressure refrigerant then flows into the heating portion 32. The refrigerant is heat-exchanged with the ambient air (dry air flowing from the dehumidifying portion 34 into the heating portion 32) in the heating portion 32. As a result, the dry air is heated, and the refrigerant is cooled and liquefied.

The pressure reducing unit 33 depressurizes the liquefied high-pressure refrigerant to have a low temperature and a low pressure. The low temperature and low pressure refrigerant flows into the dehumidifying portion 34 again.

As described above, the blower unit 9 sends dry air to the water tank 2 through the downstream air passage 582. After the air is dried, it flows into the rotary drum 3 through the water tank 2. As a result, the laundry accommodated in the rotary drum 3 is dried.

As a result of the drying of the clothes, the dry air contains more water components. As described above, the blower unit 9 sucks the dry air in the rotary drum 3 from the discharge port 11 of the water tank 2. As a result, the dry air reaches the heat pump device 30 via the upstream air passage 581 and the filter portion 40.

As described above, the dehumidifying portion 34 of the heat pump device 30 initially dehumidifies and cools the dry air. As a result, the water component in the dry air is dew condensation and separated from the dry air. After the air is dried, it flows into the heating portion 32. The heating unit 32 heats the dry air as described above. As a result, the dry air that has passed through the heat pump device 30 becomes high temperature and low humidity. The blower unit 9 sends the dry air of high temperature and low humidity to the rotary drum 3 again.

As shown in FIGS. 4 and 6, the air blowing portion 9 that is connected to the heat pump device 30 is disposed close to the compression portion 31. In the present embodiment, the air blowing portion 9 is disposed between the compression portion 31 and the left side wall 1b. The busbar G of the peripheral wall 521 of the water tank 2 is disposed on the left side space of the compression portion 31 disposed on the side of the right side wall 1a, and is effectively used for the arrangement of the air blowing portion 9, so that the air blowing portion 9 is appropriately housed in the smaller frame 1 in. The arrangement of the heat pump device 30 and the air blowing portion 9 arranged between the right side wall 1a and the left side wall 1b hardly causes an increase in the height of the frame body 1. Therefore, a small laundry dryer 500 can be provided.

The lint (referred to as the dust component of the thread) is produced by the dry laundry in the rotary drum 3. The adhesion and accumulation of the lint to the heat exchanger HEX causes a decrease in the circulation efficiency of the dry air and the heat exchange rate of the heat exchanger HEX.

The washing and drying machine 500 includes a filter unit 40 disposed upstream of the heat exchanger HEX. The filter unit 40 collects and collects foreign matters (lint) such as thread, dust, and pollen from the dry air before passing the dry air through the heat exchanger HEX, thereby suppressing entry of the lint into the heat exchanger HEX. The upper space of the casing 1 is attached to the filter portion 40 of the circulation air passage 8, and is close to the front wall 1e. Therefore, the user or the operator who wants to remove the lint accumulated in the filter unit 40 can perform the maintenance work while standing in the vicinity of the front wall 1e of the casing 1. As such, the washer dryer 500 can provide high efficiency maintenance operations.

As shown in Fig. 5, the filter unit 40 includes a first filter 40A and a second filter 40B disposed downstream of the first filter 40A. The mesh of the first filter 40A is thicker than the second filter 40B. Therefore, the second filter 40B collects and collects fine lint and other foreign matter that has passed through the first filter 40A. As a result, it is possible to suppress a decrease in heat exchange efficiency of the heat pump device 30 due to adhesion of lint and other foreign matter, and a decrease in cycle efficiency of the blower unit 9. Further, the filter unit 40 suppresses the scattering of lint and other foreign matter toward the outside of the casing 1. Therefore, contamination around the laundry dryer 500 can be suppressed.

As shown in Fig. 2, an opening 40c is formed in the upper wall 1c of the casing 1. The first filter 40A detachably attaches to the circulation air passage 8 via the opening 40c formed near the front edge of the upper wall 1c. Therefore, the user or the operator can attach and detach the first filter 40A to the casing 1 while standing in the vicinity of the front wall 1e of the casing 1. As such, the washer dryer 500 can provide high efficiency maintenance operations.

Unlike the first filter 40A, the second filter 40B is fixed to the circulation air passage 8. Since the first filter 40A removes lint and other foreign matter in the dry air before the second filter 40B, the frequency of clogging of the second filter 40B is small. Further, the user or the operator can clean the second filter 40B via the opening 40c formed in the upper wall 1c of the casing 1. Therefore, the clogging of the second filter 40B fixed to the circulation air passage 8 does not require excessive labor.

After the second filter 40B, a heat exchanger HEX is disposed. As described above, the heat exchanger HEX flows through the refrigerant which is heated by the compression unit 31. The second filter 40B fixed to the circulation air passage 8 prevents the user who is unskilled in maintenance work from easily contacting the heat exchanger HEX. Further, unlike the first filter 40A, since the second filter 40B is fixed to the circulation air passage 8, the second filter 40B hardly causes positional change. Therefore, the entry of the lint caused by the improper arrangement of the second filter 40B toward the heat exchanger HEX can be appropriately suppressed.

The filter portion 40 generates a pressure loss of dry air. As a result of the pressure loss, the velocity distribution of the dry air is smoothed (i.e., the flow of the dry air is rectified). As shown in FIGS. 4 and 5, the filter portion 40 is disposed before the heat exchanger HEX. Therefore, the rectified dry air flows into the heat exchanger HEX.

In general, when the circulation air passage is to be shortened in order to reduce the size of the washing and drying machine, it is difficult to provide a rectifying mechanism (for example, a straight pipe) in the circulation air passage. However, in the present embodiment, the filter portion 40 is to be dried. The air is rectified, so the flow interval required for rectification of the dry air is shortened. The inflow of the rectified dry air toward the heat exchanger HEX suppresses a large variation in the heat exchange efficiency. As a result, the heat exchange efficiency of the heat exchanger HEX can be improved.

As described above, the filter portion 40 upstream of the heat exchanger HEX does not need to provide a rectifying mechanism (for example, a straight pipe) to the circulation air passage 8, that is, rectification of dry air is achieved. Thus, the circulation air passage 8 can be appropriately shortened.

As shown in FIGS. 1 and 5, the dehumidifying portion 34 of the heat exchanger HEX includes an introduction surface 534 through which dry air flows. The filter unit 40 is disposed in the vicinity of the introduction surface 534. Therefore, the dry air rectified by the filter unit 40 is linearly fed into the dehumidifying portion 34 disposed after the filter unit 40.

As described above, the filter portion 40 rectifies the dry air. By the rectification of the dry air of the filter unit 40, the flow rate of the dry air is reduced. Since the circulation air passage 8 hardly bends the flow direction of the dry air between the filter portion 40 and the introduction surface 534, the dry air flows straight into the dehumidifying portion 34 after the flow velocity is reduced. As a result, the dry air passing through the dehumidifying unit 34 does not locally become a high flow velocity, and the scattering of the water component dew condensation in the dehumidifying unit 34 can be suppressed.

As shown in Fig. 5, the washer-dryer 500 further includes a recovery structure 35 for recovering the water component dew condensation in the dehumidifying unit 34. The recovery structure 35 is disposed below the dehumidification unit 34. As described above, since the filter unit 40 suppresses the scattering of the water component dew condensation in the dehumidifying unit 34, the water component can be sufficiently recovered by using the small recovery structure 35. Therefore, a small laundry dryer 500 can be provided.

A recess (not shown) is formed in the recovery structure 35. The water component dewed in the dehumidifying portion 34 is transmitted to the surface of the dehumidifying portion 34 and dripped in the concave portion. The recess is formed to receive a range of water components that are scattered downstream by the dry air.

As described above, the filter portion 40 for rectifying the dry air suppresses the scattering of the water component dew condensation in the dehumidifying portion 34. Therefore, the area of the recess required to receive the water component dropped by the dehumidifying portion 34 is small. Therefore, the water component can be sufficiently recovered by using the small recovery structure 35.

As described above, the water component of the scattering is suppressed by the filter unit 40 to be appropriately recovered by the recovery structure 35. The recovered water component is preferably discharged from the recess of the recovery structure 35 toward the outside of the washer dryer 500. For example, the water component can be drained together with the washing water to the drain opening provided below the frame 1.

The recovery structure 35 is disposed in the upper space of the casing 1 together with the heat exchanger HEX. Therefore, the water component recovered by the recovery structure 35 is properly drained by utilizing the potential energy. Since the discharge of the water component of the recovery structure 35 does not require a dedicated discharge device such as a pump. Therefore, a small laundry dryer 500 can be provided.

As described above, the filter portion 40 disposed before the heat exchanger HEX effectively suppresses the inflow of lint or other foreign matter toward the heat exchanger HEX. However, as a result of the use of the washer-dryer 500 for a long period of time, there are also cases where the heat exchanger HEX adheres and/or accumulates lint or other foreign matter.

As described above, the heat exchanger HEX is provided on the upper portion of the casing 1. The operator can remove the first filter 40A through the opening 40c formed in the upper wall 1c of the casing 1. Then, the operator can remove the second filter 40B from the circulation air path 8 using a dedicated tool. As a result, the operator can approach the heat exchanger HEX and remove lint or other foreign matter from the heat exchanger HEX. The operator can perform the removal of the first filter 40A, the removal of the second filter 40B, and the removal of lint or other foreign matter from the heat exchanger HEX in a state in which the operator stands in the vicinity of the front wall 1e of the casing 1. operation. Therefore, the washer dryer 500 can provide high efficiency maintenance work.

(Structure of filter unit)

The configuration of the filter portion 40 will be described using FIG.

The first cylindrical filter 40A having a substantially cylindrical shape of the filter portion 40 includes a filter mesh having a filter mesh which is thicker than that of the second filter 40B. The first filter 40A includes a circumferential surface on which an opening is formed. The opening formed in the circumferential surface of the first filter 40A serves as an inflow portion 41 into which dry air flows. The dry air discharged from the rotary drum 3 flows into the first filter 40A via the inflow portion 41.

The second filter 40B fixed downstream of the first filter 40A includes a flat filter mesh.

The filter unit 40 includes a lid portion 42 that is disposed above the first filter 40A. When the first filter 40A is attached to the washing and drying machine 500, the lid portion 42 is fitted to the opening 40c formed in the upper wall 1c of the casing 1. The lid portion 42 is preferably formed to be grippable by a user. When the user mounts the first filter 40A, the lid portion 42 can be used as a handle member.

The first cylindrical filter 40A having a substantially cylindrical shape includes a region L _L that generates a large pressure loss and a region L _S that generates a small pressure loss. The region L _{S which} is generated substantially at the center of the first filter 40A faces the inflow portion 41 and directly collides with the dry air flowing in from the inflow portion 41. The region L _L is generated above and below the region L _S .

The dry air of the first filter 40A having the cylindrical shape in which the pressure loss distribution described above is generated flows into the heat exchanger HEX. As a result of the pressure loss described above, the velocity distribution of the dry air having a relatively fast flow velocity in the upper portion of the dehumidifying portion 34 and a small flow velocity in the lower portion of the dehumidifying portion 34 is obtained. The cylindrical first filter 40A is preferably disposed in the vicinity of the introduction surface 534 of the dehumidifying portion 34. As a result, it is possible to effectively suppress the scattering of the water component which is dew condensation in the dehumidifying portion 34.

The droplets of the water component dewed in the dehumidifying portion 34 are smaller on the upper portion of the dehumidifying portion 34. The drops of water are combined with drops of other water components during the run down. As a result, the drip of the water component gradually increases as it flows down. Therefore, a large amount of water component is attached to the lower portion of the dehumidifying portion 34, and a smaller amount of water component is attached to the upper portion of the dehumidifying portion 34.

As described above, the speed of the dry air in the lower portion of the dehumidifying portion 34 is smaller than the speed of the dry air in the upper portion of the dehumidifying portion 34. Therefore, the droplets of the large water component are hard to be scattered, and as a result, the scattering range of the water component which is dew condensation in the dehumidifying portion 34 is narrowed. Therefore, the water component dew condensation in the dehumidifying portion 34 can be appropriately recovered using the smaller recovery structure 35.

(Compared with previous washing and drying machines)

According to the washing and drying machine 500 of the present embodiment, as described above, the heat pump device 30 and the filter unit 40 that is connected to the heat pump device 30 are provided. The filter unit 40 and the heat exchanger HEX of the heat pump device 30 are disposed in the upper space of the casing 1 (the space above the water tank 2). Therefore, the filter unit 40 is disposed close to the heat exchanger HEX.

The filter unit 40, the heat exchanger HEX, and the blower unit 9 are sequentially disposed along the flow direction of the dry air. The filter unit 40 rectifies the dry air. The rectified dry air flows into the heat exchanger HEX. The heat exchanger HEX dehumidifies and heats the dry air. The blower portion 9 then sends the dry air toward the rotary drum 3.

The prior art washing and drying machine includes a heat pump device disposed in a lower space of the casing (a space lower than the water tank), and a filter portion disposed in a space above the casing (a space above the water tank). The filter unit, the air supply unit, and the heat exchanger are disposed in sequence along the flow direction of the dry air.

As described above, in the present embodiment, since the filter unit 40 is disposed close to the heat exchanger HEX, it is possible to use the circulation air path 8 which is shorter than the circulation air passage used in the above-described prior art washing and drying machine, and circulates. Dry air. Therefore, the pressure loss of the dry air flowing through the circulation air passage 8 can be reduced. The reduction in the pressure loss of the dry air reduces the power consumption of the air supply portion 9 through which the dry air flows. The decrease in the pressure loss of the dry air also increases the flow rate of the dry air flowing through the circulation air path 8.

The filter portion 40 disposed in the short circulation air passage 8 is configured to rectify dry air. The rectification of the dry air increases the heat exchange rate of the heat exchanger HEX. As a result, compared with the previous washing and drying machine, a greatly increased heat exchange amount per unit time, power saving, and short drying time can be achieved.

(temperature detection of dry air)

Use Figure 5 to illustrate the temperature detection of dry air.

The washing and drying machine 500 further includes a first temperature sensor 36 and a second temperature sensor 37. Both the first temperature sensor 36 and the second temperature sensor 37 are used to detect the temperature of the dry air in the circulation air path 8.

The first temperature sensor 36 detects the temperature of the dry air flowing between the rotary drum 3 and the heat exchanger HEX. The first temperature sensor 36 is disposed between the filter unit 40 and the dehumidifying unit 34.

The second temperature sensor 37 detects the temperature of the dry air between the heat exchanger HEX and the rotary drum 3. The second temperature sensor 37 is disposed after the air blowing portion 9 .

The first temperature sensor 36 detects the temperature of the dry air before dehumidification by the heat exchanger HEX. The second temperature sensor 37 detects the temperature of the dry air after being dehumidified and heated by the heat exchanger HEX. The output signal of the first temperature sensor 36 and the output signal of the second temperature sensor 37 are used for control of the heat pump device 30.

The first temperature sensor 36 between the filter unit 40 and the heat exchanger HEX is disposed in a region L _L of the first filter 40A having a substantially cylindrical shape and having a large pressure loss (the upper portion of the first filter 40A or The lower part is nearby. The pressure of the first filter 40A of small area L _S loss compared to the pressure loss of a large area L _L less likely to occur due to clogging of the lint and other foreign matter. Therefore, the first temperature sensor 36 provided in the vicinity of the region L _L can accurately detect the temperature of the dry air for a long period of time. When the filter unit 40 is clogged with lint or other foreign matter, since the temperature detected by the first temperature sensor 36 changes, the output signal of the first temperature sensor 36 is used for detection. The filter unit 40 is clogging. Therefore, the first temperature sensor 36 disposed in the vicinity of the region L _L can accurately detect the presence or absence of clogging of the filter portion 40 for a long period of time.

The first temperature sensor 36 between the filter unit 40 and the heat exchanger HEX and the second temperature sensor 37 disposed downstream of the air blowing unit 9 are disposed inside the shorter circulation air passage 8. The interval between the first temperature sensor 36 and the second temperature sensor 37 becomes shorter. The first temperature sensor 36 and the second temperature sensor 37 in the shorter interval are less susceptible to the error factor (for example, dry air leakage) which causes an error in temperature detection. Therefore, the first temperature sensor 36 and the second temperature sensor 37 are hardly affected by the error factors such as the dry air leakage, and the temperature of the dry air can be detected with high precision.

(support mechanism)

Fig. 7 is a perspective view schematically showing a supporting member of the washing and drying machine 500. Fig. 8 is a perspective view schematically showing the washing and drying machine 500. The support mechanism will be described using Figs. 6 to 8.

The washing and drying machine 500 further includes a support mechanism 560 that supports the heat pump device 30 in the casing 1. The support mechanism 560 includes a support member 61 that supports the heat pump device 30, and a restriction member 62 that suppresses the heat pump device 30 from being displaced upward.

As shown in Fig. 7, both ends of the support member 61 of the heat pump device 30 are supported between the compression portion 31 and the regulating member 62, and are respectively engaged with the upper edge of the right side wall 1a and the upper edge of the left side wall 1b. Similarly, the both ends of the restricting member 62 are respectively engaged with the upper edge of the right side wall 1a and the upper edge of the left side wall 1b.

The support member 61 extending between the right side wall 1a and the left side wall 1b is disposed below the heating portion 32 and/or the dehumidifying portion 34 disposed upstream of the compressing portion 31. The heat pump device 30 is supported. The restricting member 62 extending between the right side wall 1a and the left side wall 1b restricts the upward displacement of the heat pump device 30 at a position farther from the compression portion 31 than the support member 61. In the present embodiment, the support member 61 is adjacent to the compression portion 31. The restricting member 62 extends above the filter portion 40 disposed upstream of the heat pump device 30.

Among the heat pump devices 30, the compression portion 31 has a large weight. The weight of the compression portion 31 is applied to the support member 61 of the heat pump device 30 in the vicinity of the compression portion 31, and is applied to the right side wall 1a and the left side wall 1b. As a result, the weight of the compression unit 31 is such that the vibration of the upper edge 1a and the upper edge of the left side wall 1b due to the vibration factor such as the rotation of the rotary drum 3 is reduced. The weight of the heat pump device 30 indicates the weight of the vibration element group including the right side wall 1a and the left side wall 1b for the load of the right side wall 1a and the left side wall 1b. The increase in the weight of the vibration element group including the right side wall 1a and the left side wall 1b is such that the vibration amplitude for the same exciting force is reduced. In this manner, since the right side wall 1a and the left side wall 1b of the casing 1 are subjected to downward gravity, the right side wall 1a and the left side wall 1b are exposed to the rotation of the rotary drum 3 or other vibration factors, and the right side wall 1a and the left side may be appropriately reduced. The vibration of the wall 1b. As a result, the vibration of the casing 1 can be suppressed as a whole.

The support mechanism 560 having the support member 61 pressurizes the upper edges of the right side wall 1a and the left side wall 1b by using the gravity acting on the heat pump device 30 including the compression portion 31, thereby effectively suppressing the rotation or other vibration factor caused by the rotary drum 3 The vibration of the right side wall 1a and the left side wall 1b of the frame body 1.

Figure 9 is a perspective view showing another configuration of the support member in the washer-dryer 500. Figure 10 is a schematic perspective view of the washer-dryer 500. Other configurations of the support member will be described using Figs. 9 and 10.

The weight of the compression portion 31 can also be loaded on one of the right side wall 1a and the left side wall 1b. For example, as shown in Fig. 10, the support mechanism 560 may be provided with a support member 63 extending between the right side wall 1a and the rear wall 1d instead of the above-described support member 61. As shown in Fig. 10, the compression portion 31 is disposed at a corner portion between the right side wall 1a and the rear wall 1d. Since the compression portion 31 is surrounded by the right side wall 1a, the rear wall 1d, and the support member 63, even if the washing and drying machine 500 is dropped or tipped over, the heavier compression portion 31 is also composed of the right side wall 1a, the rear wall 1d, and the support member 63. Properly supported.

The support mechanism 560 is further explained using FIG. 6 and FIG. 7 to FIG.

As shown in Fig. 6, the air blowing portion 9 disposed adjacent to the compression portion 31 is connected to the heat pump device 30. Therefore, in addition to the weight of the heat pump device 30, the weight of the air blowing portion 9 is also applied to the right side wall 1a and/or the left side wall 1b. As a result, the vibration of the right side wall 1a and/or the left side wall 1b of the casing 1 caused by the rotation of the rotary drum 3 or other vibration requirements is effectively suppressed.

The blower unit 9 includes a blower fan 9b that causes a flow of dry air in the circulation air passage 8, and a blower motor 9a that rotates the blower fan 9b. When the blower fan 9b rotates the blower fan 9b, the dry air that has passed through the heat pump device 30 is sent to the rotary drum 3. The blower motor 9a is the same as the compression unit 31 and has a large weight. As described above, the blower unit 9 is disposed close to the compression unit 31. The support members 61 and 63 disposed below the air blowing portion 9 extend along the compression portion 31 and the air blowing portion 9, and are used not only for supporting the compression portion 31 but also for supporting the air blowing portion 9. Therefore, a relatively simple configuration for supporting the more important members (the compressing portion 31 and the blowing portion 9) can be provided. The simpler support structure contributes significantly to the reduction in the number, weight and cost of the washer dryer 500.

As described above, above the heat pump device 30, on the right side wall 1a and the left side The restricting member 62 is extended to the wall 1b. The restricting member 62 is further away from the compressing portion 31 than the supporting member 61.

The restriction member 62 will be described using FIG. 1, FIG. 3, and FIG.

As shown in FIGS. 1 and 3, the compression portion 31 and the air blowing portion 9 having a large weight are disposed in the vicinity of the rear wall 1d. On the other hand, a lighter component (for example, the heat exchanger HEX) is closer to the front wall 1e than the compression portion 31 and the air blowing portion 9. Therefore, the circulation mechanism for the dry air including the heat pump device 30 acts to bring the moment of the lightweight member close to the front wall 1e.

The restricting member 62 disposed closer to the front wall 1e than the support member 61 suppresses the displacement of the lightweight member such as the heat exchanger HEX upward. In the present embodiment, the filter unit 40 is connected to the heat pump device 30. The restricting member 62 is erected above the filter portion 40 between the heat pump device 30 and the front wall 1e. In this manner, the restricting member 62 appropriately restricts the displacement of the heat exchanger HEX of the filter unit 40 and the heat pump device 30 upward. Alternatively, the restricting member 62 may be erected above the heat exchanger HEX of the heat pump device 30. The restricting member 62 directly restricts the displacement of the heat exchanger HEX upward.

As described above, the peripheral components (the filter portion 40 or the blower portion 9) of the heat pump device 30 and the heat pump device 30 are appropriately supported by the support members 61 and 63 which are laid under the heat pump device 30. Further, the restriction member 62 is placed above the heat pump device 30 and/or the filter portion 40. The restriction member 62 and the support members 61 and 63 disposed on the upper and lower sides of the heat pump device 30 are configured to appropriately reduce the vibration amplitude in the vertical direction. In this way, the vibration of the frame 1 caused by the rotation of the rotary drum 3 can be reduced as a whole.

(conclusion between the elements)

The support mechanism 560 described above suppresses not only the vibration of the casing 1 but also the damage or damage of the fixing member such as a screw for connecting various components disposed in the upper space of the casing 1. The supporting mechanism 560 can also continuously maintain the peripheral components of the heat pump device 30 and the heat pump device 30 (filter portion 40 or air supply), for example, when accidental dropping or tipping occurs during the handling and/or setting of the washing and drying machine 500. Department 9). Hereinafter, the influence of the support mechanism 560 on the fixing member for the connection between the members will be described.

There are also several parts in the upper space of the frame of the general laundry dryer. The parts that are disposed in the upper space are typically connected to a support element called the upper wall of the frame. When the washing and drying machine is overturned or dropped, the components of the upper space and the fixing members of the supporting elements (such as small screws and/or threaded bushings for fixing the screws) are concluded because of the gravity of the parts acting on the upper space and Caused by falling over. The impact of falling, and the greater tensile force. A fixed tensile member for a relatively heavy part produces a large tensile force. Therefore, the fixing member for fixing the components disposed in the upper space of the general washing machine is more likely to be broken when the washing and drying machine is tipped over or dropped.

In the present embodiment, the compression portion 31 and the air blowing portion 9 of the heat pump device 30 have a large weight. The support members 61 and 63 appropriately support the compression portion 31 and/or the air blowing portion 9. Further, the restriction member 62 that is further away from the compression portion 31 than the support members 61, 63 is placed above the heat pump device 30 and/or the filter portion 40.

The laundry dryer 500 falls. When it is overturned, the weight of the heat pump device 30 and/or the air supply portion 9 is applied to the support members 61, 63 and the laundry dryer 500 is dropped. The impact of falling over. The weight of the heat pump device 30 and/or the air supply portion 9 and the accompanying laundry dryer 500 are dropped. The impact of overturning The compressive forces of the brace members 61, 63 act.

The compressive force acting on the support members 61, 63 also acts on the fixing members such as the screws and the threaded bushings that join the support members 61, 63 and the heat pump device 30/air blowing portion 9. However, unlike the tensile force, the fixing member is less susceptible to breakage by the compressive force.

In the present embodiment, the support members 61 and 63 are disposed close to the compression portion 31 having a large weight. As a result, a moment around the support members 61, 63 is generated. The moment around the support members 61, 63 is intended to float the relatively light weight components (filter portion 40 and heat exchanger HEX) existing between the support members 61, 63 and the front wall 1e. The moment around the support members 61, 63 generates a compressive force to the restricting member 62 that is mounted above the heat pump device 30 and/or the filter portion 40. The compressive force acting on the restricting member 62 also acts on the securing member such as the confinement restricting member 62, the screw and the threaded bushing of the heat pump device 30 and/or the filter portion 40. However, unlike the tensile force, the fixing member is less susceptible to breakage by the compressive force.

The height dimension of the frame of a typical washer dryer is increased according to the height dimension of the support members supporting the parts of the upper space.

In the present embodiment, the rotary drum 3 and the water tank 2 are inclined in the casing 1. As a result, the vicinity of the rear wall 1d of the upper space is wider than the vicinity of the front wall 1e. The larger size (compression portion 31 and/or air blowing portion 9) is disposed in the upper space near the rear wall 1d. Therefore, it is possible to ensure a sufficient and wide space for arranging the support members 61, 63 without increasing the height of the frame body 1.

The structure in which the blower unit 9 and the heat pump device 30 are concluded will be described using FIG.

The washing and drying machine 500 is provided with a structural member 38 for converging the air blowing portion 9 and the heat pump device 30. The air blowing portion 9 that is connected to the heat pump device 30 by the structural member 38 is disposed on the side of the compression portion 31. As a result, as described above, not only the weight of the heat pump device 30 but also the weight of the blower portion 9 is also applied to the right side wall 1a and/or the left side wall 1b. Thus, the vibration of the right side wall 1a and/or the left side wall 1b resulting from the rotation of the rotary drum 3 or other vibration factors can be effectively reduced.

The blower motor 9a is the same as the compression unit 31 and has a large weight. Since the weight portion 31 and the air blowing portion 9 having a large weight are disposed close to each other, the support members 61 and 63 can simultaneously support the compression portion 31 and the air blowing portion 9. Therefore, a relatively simple configuration for supporting the heavy weight (compression portion 31 and air blowing portion 9) can be provided. The support of the relatively heavy structure (the compression portion 31 and the blower portion 9) contributes significantly to the reduction in the number, weight, and cost of the washer dryer 500.

(Configuration of heat pump device)

The dehumidifying portion 34 and the heating portion 32 of the heat pump device 30 are preferably formed of a metal such as copper or aluminum having high thermal conductivity. As described above, since the heat pump device 30 is disposed above the water tank 2, it is difficult to expose it to the washing water. Therefore, the dehumidifying portion 34 and the heating portion 32 are less likely to be corroded by metals which are caused by chemical components such as a lotion, a softener or a bleach contained in the washing water.

Since the dehumidifying portion 34 and the heating portion 32 of the heat exchanger HEX are linearly arranged with respect to the air blowing portion 9 along the circulation path of the dry air, the dry air in the heat exchanger HEX flows substantially linearly. In general, the fluid flow in the bending causes a bias flow and a pressure loss of the fluid. However, according to the arrangement of the straight line of the dehumidifying portion 34 and the heating portion 32 of the present embodiment, the bias flow and the pressure loss of the fluid are hardly generated. As a result, an efficient circulation of dry air can be achieved. Therefore, the power consumption of the air blowing portion 9 in which the dry air flows in the circulation air passage 8 can be reduced.

The bias flow of the dry air is suppressed, and as a result, a high-speed flow of a part of the dry air passing through the dehumidifying portion 34 can be suppressed. As described above, the dehumidifying portion 34 dews the water component in the dry air. When the high-speed flow of the dry air is locally generated in the dehumidifying portion 34, the dew condensation water component is again transported to the rotary drum 3 via the air blowing portion 9 by the dry air. As a result, the laundry in the rotary drum 3 absorbs the water component again. In the present embodiment, the arrangement of the straight lines of the dehumidifying portion 34 and the heating portion 32 suppresses the high-speed flow of the local portion of the dry air as described above. Therefore, there is almost no decrease in the drying efficiency due to the circulation of the water component after the condensation.

In general, when the flow rate of the fluid passing through the heat pump device is lowered, the heat absorption amount from the heat absorbing portion of the fluid heat absorbing portion is reduced. As a result, the vaporization of the refrigerant passing through the heat absorbing portion becomes incomplete. Thereafter, the refrigerant that is not completely vaporized reaches the compression device. The compression device compresses the liquid refrigerant and, as a result, is potentially malfunctioning.

In the present embodiment, since the arrangement of the straight lines of the dehumidifying unit 34 and the heating unit 32 maintains an appropriate flow rate of the dry air in the heat exchanger HEX, it is easy to achieve complete vaporization of the refrigerant in the dehumidifying unit 34. Since it is difficult for the liquid refrigerant to flow to the compression portion 31, the failure of the compression portion 31 is hard to occur. Therefore, the reliability of the washing and drying machine 500 having the heat pump device 30 is improved. As a result of the improvement in reliability, continuous dehumidification can be performed without stopping the compression unit 31. Therefore, the drying operation time can be shortened.

Further, as the refrigerant to be applied to the heat pump device 30, a general refrigerant such as an HFC (hydrofluorocarbon)-based refrigerant, an HFO (hydrofluoroolefin compound)-based refrigerant, or a carbon dioxide refrigerant is preferably used.

(configuration of the air supply unit)

The arrangement of the blower unit 9 will be described using Fig. 1 .

As described above, the blower unit 9 includes the blower motor 9a and the blower fan 9b. The side of the blower motor 9a is provided on the upper side of the blower fan 9b. As a result, the rotation axis of the blower unit 9 is inclined downward toward the upstream. As a result, even if the water component dewed in the dehumidifying portion 34 is scattered to the air blowing portion 9, the water component adhering to the air blowing fan 9b is dropped in the opposite direction of the air blowing motor 9a by the gravity and the thrust from the air blowing fan 9b. As a result, the water component adhering to the blower fan 9b hardly reaches the blower motor 9a located above the blower fan 9b.

(Configuration of control board)

The configuration of the control substrate will be described using FIG.

The washing and drying machine 500 includes a control board 50 disposed in the housing 1 . Electronic components (various circuits) for controlling the laundry dryer 500 are mounted on the control substrate 50. The control board 50 is located above the lotion input unit 10 housed in the casing 1.

The wires for connecting the control substrate 50 of the present embodiment and the electric components such as the drive motor 7 or the blower motor 9a are shortened compared to the control substrate disposed in the lower space of the casing. The control board 50 is disposed in an upper space of the casing 1 (preferably in the vicinity of the front wall 1e). Therefore, the operator can perform the repair of the control substrate 50 while standing in the vicinity of the front wall 1e of the casing 1. As such, the washer dryer 500 can provide efficient maintenance work.

(alternative composition)

In the present embodiment, the filter unit 40 includes the first filter 40A and the second filter 40B, and performs a two-stage filtration process. Instead, the dryer can also be equipped with a filter device that performs a one-stage filtration process using a single filter element. Instead, the dryer can also be equipped with a filter device that uses a filter element of greater than 2 to perform a filtration process of greater than two.

In the present embodiment, the filter unit 40 includes a first filter 40A having a substantially cylindrical shape. Instead, the dryer can also have flat filter elements or other shapes of filter elements.

In the present embodiment, the washer-dryer 500 has a washing function and a drying function. Instead, the dryer does not have a laundry function. For example, if the laundry function is removed from the above-described washing and drying machine 500, a dryer having only a drying function can be obtained. The dryer having only the drying function does not need to be connected to the water supply pipe or the drain pipe of the water tank 2 of the above-described washing and drying machine 500. The requirement corresponding to the above-described water tank 2 is used as a groove for covering the rotating drum 3. Other requirements may be the same as the various requirements of the washer dryer 500 described above.

In the present embodiment, the washing and drying machine 500 is a drum type washing and drying machine. Instead, the dryer can also be a dry type laundry dryer for dry hanging clothes. Even in the case of the 洗衣 type washing and drying machine, according to the principle of the above-described embodiment, the reliability of the heat pump device can be improved, the drying time can be shortened, and a small power consumption can be achieved.

In the above embodiment, a dryer having the following configuration is mainly included.

A dryer according to one aspect of the present invention, comprising: a frame; a groove supported by the outer casing; and a rotary drum rotatably mounted in the outer groove for accommodating the laundry; a heat pump device for drying a heat exchanger in the rotary drum; a blower for blowing dry air; and a circulation air passage for connecting the outer tank and the heat pump device to circulate the circulation path of the dry air from the air blow portion And disposed in the circulation air passage to prevent dust components from entering the filter portion of the heat exchanger; the filter portion and the heat exchanger are disposed above the outer groove formed in the frame body In the upper space, the filter unit, the heat exchanger, and the air blowing unit are sequentially disposed along the flow direction of the dry air.

According to the above configuration, the heat exchangers of the filter unit and the heat pump device are disposed close to the upper space above the groove supported by the casing. The filter unit, the heat exchanger, and the air blowing unit are sequentially disposed along the flow direction of the dry air. The filter section rectifies the dry air. The rectified dry air flows into the heat exchanger. The heat exchanger dehumidifies and heats the dry air. The air supply part sends dry air that has been dehumidified and heated by the wind.

The conventional dryer has a heat pump device disposed below the groove formed outside the casing, and a filter portion disposed above the casing to form an upper space above the groove. The filter unit, the air supply unit, and the heat exchanger are disposed in sequence along the flow direction of the dry air.

According to the above configuration, the filter unit, the heat exchanger, and the air blowing unit are sequentially disposed along the flow direction of the dry air, so that the circulation air passage is shorter than that of the conventional dryer. Since the pressure loss of the dry air flowing through the circulation air path becomes low, the power consumption of the air supply portion of the air supply drying air in the circulation air path becomes low. Further, the air blowing portion can increase the circulation amount of the dry air.

According to the above configuration, since the filter portion is disposed upstream of the heat exchanger, the dry air can be rectified without using a rectifying mechanism such as a straight pipe in the circulation air passage. The filter portion disposed upstream of the heat exchanger generates a pressure loss of dry air. The pressure loss of the dry air smoothes the velocity distribution of the dry air (rectified dry air). Since the rectified dry air flows into the heat exchanger, local heat exchange rate unevenness is hardly generated, and a high heat exchange rate can be achieved.

As mentioned above, a short circulation path will result in a low pressure loss of dry air. Further, in the short circulation air passage, the dry air is rectified to achieve a high heat exchange rate. Therefore, according to the dryer having the above configuration, low power consumption and short drying time can be achieved.

Further, since the filter portion and the heat exchanger are formed in the upper space above the groove provided in the casing, the filter portion and the heat exchanger can be accessed from above the dryer. Therefore, the operator can maintain the filter unit and the heat exchanger as a whole without moving the dryer, and high work efficiency can be achieved.

In the above configuration, the heat exchanger preferably includes a heat absorbing portion that absorbs heat from the drying air using a refrigerant, and a heat releasing portion that heats the drying air using a refrigerant, wherein the heat absorbing portion includes an introduction surface into which the dry air flows, and the filter portion is It is disposed close to the introduction surface.

According to the above configuration, the filter portion is disposed in the vicinity of the introduction surface of the heat absorbing portion into which the dry air flows. Due to the rectification of the dry air by the filter portion, the velocity distribution of the dry air is smoothed, so that the increase in the speed of the portion of the dry air passing through the heat absorbing portion can be suppressed. As a result, the water component which is dew condensation in the heat absorbing portion hardly scatters. A small dryer is available because there is no need for large equipment to recover water.

Since the heat exchanger is formed in the upper space above the groove provided in the casing, the water component dewed in the heat absorbing portion can be drained by using the potential energy instead of the drainage device such as a pump. Therefore, a small dryer can be provided.

In the above configuration, the filter unit for collecting and collecting the dust component in the dry air preferably includes a first filter detachably provided to the circulation air passage, and is fixed in the circulation air passage. In the second filter, the first filter is disposed upstream of the second filter.

According to the above configuration, the filter unit for collecting and recovering the dust component in the dry air includes the first filter that is detachably provided to the circulation air passage. The first filter is disposed upstream of the second filter. The amount of dust components captured by the second filter is smaller than the amount of dust components captured by the first filter. The frequency of operation of cleaning or replacing the second filter is less than that of the first filter. Therefore, the fixing of the second filter toward the circulation air path hardly affects the maintenance of the second filter and hinders the maintenance of the second filter. Users who are unfamiliar with maintenance operations are close to the heat exchanger. Further, since the fixing of the second filter to the circulation air passage suppresses the improper arrangement of the second filter, it is possible to suppress entry of dust components into the heat exchanger.

In the above configuration, the filter unit preferably includes a cylindrical filter element, wherein the filter element is formed with an inflow portion through which the dry air flows, and a flow rate of the dry air at a lower portion of the heat absorbing portion is higher than the aforementioned The filter element is disposed in the circulation air passage such that the flow rate of the dry air in the upper portion of the heat absorption portion is small.

According to the above configuration, since the cylindrical filter element has a smaller flow velocity of the dry air passing through the lower portion of the heat absorbing portion than the dry air at the upper portion of the heat absorbing portion, the water component dew condensation at the heat absorbing portion hardly scatters. A small dryer is available because there is no need for large equipment to recover water.

In the above configuration, the dryer further includes a support mechanism for supporting the heat pump device, and the frame includes a wall portion defining the upper space. The wall portion includes a side wall that is erected in the vertical direction, and the support mechanism is coupled to the side wall.

According to the above configuration, the casing includes a wall portion defining the upper space. The wall portion includes side walls that are erected in the up and down direction. The support mechanism supporting the heat pump device is connected to the side wall, so that the weight of the heat pump device is applied to the side wall. Therefore, the vibration of the side wall can be reduced.

In the above configuration, the support mechanism preferably includes a support member disposed under the heat pump device and a restricting member disposed above the heat pump device; and the support member connected to the side wall supports the heat pump device, and the restricting member It is to limit the displacement of the heat pump device upward.

According to the above configuration, the support member disposed under the heat pump device supports the heat pump. Since the support member is attached to the side wall, the weight of the heat pump is applied to the side wall. Therefore, the vibration of the side wall can be reduced. The restriction member disposed above the heat pump device limits the displacement of the heat pump device upward. Therefore, the downward movement on the heat pump device becomes smaller.

In the above configuration, the heat pump device preferably includes a compression portion that compresses the refrigerant, and the support member supports the heat pump device between the compression portion and the restriction member.

According to the above configuration, since the compression portion of the compression refrigerant has a large weight, the torque around the support member of the heat pump device is supported between the compression portion and the restriction member to displace the heat pump device upward. The restriction member disposed above the heat pump device stabilizes the upper portion of the heat pump device because the heat pump device is displaced upward.

A washing and drying machine of another aspect of the above embodiment is characterized in that The invention comprises: a frame; a groove supported in the frame for storing the outer tank of the washing water; a rotating drum rotating in the outer tank for washing and drying the laundry; and a drying drum for drying the laundry in the rotating drum a heat pump device of a heat exchanger; a blower portion for supplying air to dry air; a circulation air passage connecting the outer tank and the heat pump device to define a circulation path of the dry air circulating from the air blowing portion; and being disposed in the circulation air passage a filter portion for preventing dust components from entering the heat exchanger; the filter portion and the heat exchanger are disposed in an upper space above the outer groove formed in the casing, and the filter portion, The heat exchanger and the air blowing portion are disposed in this order along the flow direction of the dry air.

According to the above configuration, a relatively high heat exchange efficiency can be achieved using a short circulation air passage. Therefore, according to the above-described laundry dryer, low power consumption and short drying time can be achieved.

Industrial availability

The principle of the above embodiment is suitable for use in various dryers or washer dryers such as drum type, hanging type or rotary disc type.

1‧‧‧ frame

1a‧‧‧ right wall

1b‧‧‧Left wall

1c‧‧‧上壁

1d‧‧‧back wall

1e‧‧‧ front wall

1f‧‧‧ bottom wall

2‧‧‧ outer trough (sink)

2a‧‧‧ top

3‧‧‧Rotating drum

4‧‧‧Operator panel

5‧‧‧

7‧‧‧Drive motor

8‧‧‧Circular wind road

9‧‧‧Air Supply Department

9a‧‧‧Air supply motor

9b‧‧‧Air supply fan

10‧‧‧Dosing agent input department

11‧‧‧Export

20‧‧‧pipe

30‧‧‧ heat pump unit

31‧‧‧Compression Department

31a‧‧‧ bottom

32‧‧‧ heating department

33‧‧‧Decompression Department

34‧‧‧Dehumidification Department

35‧‧‧Recycling structure

36‧‧‧1st temperature sensor

37‧‧‧2nd temperature sensor

38‧‧‧Architecture

40‧‧‧Filter Department

40A‧‧‧1st filter

40B‧‧‧2nd filter

40c‧‧‧ openings

41‧‧‧Inflows

42‧‧‧ 盖部

50‧‧‧Control substrate

61,63‧‧‧Support members

62‧‧‧Restricted components

100‧‧‧ frame

102‧‧‧Sink

103‧‧‧Rotating drum

108‧‧‧Circular wind road

109‧‧‧Air blower

130‧‧‧Heat pump mechanism

140‧‧‧Filter Department

150,500‧‧‧Washing dryer

521, 531 ‧ ‧ wall

522, 532‧‧‧ bottom wall

523‧‧‧ damper

534‧‧‧Import

541‧‧‧ operation keys

542‧‧‧ display window

560‧‧‧Support institutions

581‧‧‧Upstream wind road

582‧‧‧ downstream wind road

HEX‧‧‧ heat exchanger

G‧‧‧ Busbar

L _L, L _S ‧‧‧Area

Fig. 1 is a cross-sectional view showing a schematic configuration of a drum type washing and drying machine according to an embodiment.

Fig. 2 is a partial view showing the front side of the drum type washing and drying machine shown in Fig. 1.

Fig. 3 is a perspective view schematically showing the internal structure of the drum type washing and drying machine shown in Fig. 1.

Fig. 4 is a schematic top view of the drum type washer dryer shown in Fig. 1.

Fig. 5 is a cross-sectional view taken along line A-A of Fig. 4;

Fig. 6 is a perspective view schematically showing the configuration of the upper portion of the drum type washing and drying machine shown in Fig. 1.

Fig. 7 is a perspective view schematically showing a supporting member in the drum type washing and drying machine shown in Fig. 1.

Fig. 8 is a perspective view schematically showing the drum type washing and drying machine shown in Fig. 1.

Fig. 9 is a perspective view schematically showing another arrangement of the supporting members in the drum type washing and drying machine shown in Fig. 1.

Fig. 10 is a perspective view schematically showing the drum type washing and drying machine shown in Fig. 9.

Figure 11 is a perspective view schematically showing a prior laundry dryer using a heat pump to dry laundry.

8. . . Circulation wind path

9. . . Air supply department

30. . . Heat pump unit

32. . . Heating department

33. . . Decompression department

34. . . Dehumidifier

35. . . Recycling structure

36. . . 1st temperature sensor

37. . . Second temperature sensor

40. . . Filter section

40A. . . 1st filter

40B. . . 2nd filter

41. . . Inflow

42. . . Cover

500. . . Laundry dryer

534. . . Import face

581. . . Upstream wind road

HEX. . . Heat exchanger

L _L . . . region

L _S . . . region

Claims (4)

A dryer comprising: a frame; a groove supported by the outer casing; and a bottomed cylindrical drum rotatably mounted in the outer groove for accommodating the clothes of the drying object; a heat pump device including a heat exchanger for drying the laundry in the drum; a blower for blowing the drying air; and the outer tank and the heat pump device for drying the air blower from the air blower a circulation air passage for air circulation; and a filter portion provided in the circulation air passage for preventing dust from entering the heat exchanger; and the filter portion having a portion including an inflow portion of the drying air and opening a cylindrical filter, a first filter portion detachably provided to the circulation air passage for collecting dust in the drying air, and a second filter portion fixed to the circulation air passage. The first filter unit is disposed on the upstream side of the second filter unit, and the heat exchanger includes a heat absorbing portion that absorbs heat from the drying air of the refrigerant, and a heat medium for heating and drying the refrigerant. In the heat radiating portion of the air, the filter portion and the heat exchanger are disposed in a space above the outer tank in the casing, and the filter is provided in the vicinity of the air-introducing surface side of the heat absorbing portion to pass through the filter. Dry air The flow rate is relatively suppressed in the lower portion of the heat absorbing portion from the upper portion of the heat absorbing portion, and the filter portion, the heat exchanger, and the air blowing portion are disposed in this order from the upstream side of the circulation air passage. The dryer of claim 1, wherein the heat pump device comprises a compression portion for compressing a refrigerant, the heat pump device being disposed at an upper portion of the frame body and supported on an upper portion of at least one side plate of the side plates of the frame body In the support mechanism, the support mechanism includes a support member that is disposed between the compressor and supports the heat pump device from below, and a restriction member that can support the heat pump from above. The dryer according to claim 2, wherein the restricting member supports the portion of the heat pump device remote from the compression portion from above. A washing and drying machine comprising the dryer according to any one of claims 1 to 3, wherein the laundry in the drum is washed by storing the washing water in the outer tank and rotating the drum.