JP4268183B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washing / drying machine for washing and drying clothes and the like.

  A conventional drum-type washing and drying machine has a configuration as shown in FIG. Hereinafter, the configuration will be described. As shown in the figure, a cylindrical outer tub 3 elastically supported by a plurality of suspensions 2 is provided inside the housing 1 so that vibrations during washing and dehydration are absorbed by the suspension 2. Inside the outer tub 3, a cylindrical, horizontal axis type inner tub 5 that accommodates an object 4 to be washed or dried (hereinafter referred to as clothing) is rotatably arranged, and a rotating shaft 6 a is rotated by a drive motor 6. To rotate.

  A plurality of baffles (not shown) for stirring clothes are provided on the inner wall of the inner tank 5, and a plurality of small holes 5 a are provided on the peripheral wall of the inner tank 5. On the front surface of the housing 1, there are provided an opening 1a through which clothes 4 are taken in and out and a door 7 for opening and closing the opening 1a. Similar opening portions 3 a and 5 b are also provided on the front side of the outer tub 3 and the inner tub 5, and the opening portion 3 a of the outer tub 3 is water-tightly connected to the opening portion 1 a of the housing 1 by a bellows 8. The bottom of the outer tub 3 has a drain port 9 for discharging washing water, is connected to a drain hose 11 via a drain valve 10, and its tip is led out of the machine.

  The blower 12 blows and supplies the warm air heated by the heater 13 from the air supply port 14 into the inner tank 5. The circulation duct 15 performs dehumidification of the wet drying air that has passed through the inner tank 5 and the outer tank 3, and has one end connected to the exhaust port 16 at the bottom of the outer tank 3 and the other end connected to the blower 12. ing. The water supply valve 17 controls water supply from a water supply hose 18 connected to a tap or the like of a water supply.

  In the above configuration, when the washing operation is performed, the door 7 is opened, the clothes 4 and the detergent are put into the inner tub 5, and the operation is started. First, when the water supply valve 17 opens the water supply port on the washing water side and a predetermined amount of water is supplied into the outer tub 3 and the inner tub 5, the drive motor 6 is activated and the inner tub 5 is rotationally driven to perform the washing operation. Do. After a predetermined time, the drive motor 6 is stopped, the drain valve 10 is opened, and the dirty water is drained from the inner tank 5 and the outer tank 3 and drained to the drainage place outside the machine via the drain hose 11. Next, water is supplied to the outer tub 3 and the inner tub 5 in the same manner as described above, and a rinsing operation is performed. When rinsing is completed, the drain valve 10 is opened and drained, and then the inner tub 5 is rotationally driven by the drive motor 6 at a high speed, whereby the clothes 4 are dehydrated.

  When the washing operation is completed as described above, the drying operation is started. In the drying process, while the inner tub 5 is driven to rotate at a low speed by the drive motor 6 and the clothes 4 are stirred, the air blown in the direction of the arrow 19 by the blower 12 is heated by the heater 13 to become warm air, and the air supply port 14 is sent into the inner tank 5. This hot air takes away moisture from the garment 4, passes through the small hole 5 a of the inner tub 5, passes through the outer tub 3, and reaches the circulation duct 15 through the exhaust port 16.

  At this time, the water supply valve 17 opens the water supply port on the cooling water side, and cooling water is poured into the circulation duct 15. When the warm air containing moisture from the clothing 4 deprives moisture and passes through the circulation duct 15, the cooling water cools it to cause moisture condensation, and the moist warm air is dehumidified and again as shown by the arrow. Return to the blower 12. This cooling water and dew condensation water is drained out of the machine via the drain valve 10. The clothes 4 in the inner tub 5 are dried by circulating hot air through the circulation path of the blower 12, the heater 13, the air supply port 14, the inner tub 5, the outer tub 3, the exhaust port 16, and the circulation duct 15. Can do.

  In the above-described conventional configuration, the heat used for drying the garment 4 is all discarded to the outside by the cooling water of the circulation duct 15 or the heat radiation from the housing 1, and is not reused.

Therefore, a compressor that compresses the refrigerant, a radiator that dissipates the heat of the compressed refrigerant, a throttle means for reducing the pressure of the high-pressure refrigerant, and the reduced-pressure and low-pressure refrigerant generate heat from the surroundings. It has been proposed to provide a clothes dryer with a heat pump device in which a refrigerant is circulated through a pipe line so that the refrigerant circulates (see, for example, Patent Document 1). According to this configuration, it has been found that the amount of heat released to the outside can be recovered and the clothes can be effectively dried using energy.
JP 7-178289 A

  As described above, the washing and drying machine provided with the heat pump device has a heat pump device in which the compressor, the radiator, the squeezing means, and the heat absorber are connected by a pipe line such as a copper tube, and the air flows through the heat absorber and the radiator. However, if these parts are scattered in the casing, the assemblability in the manufacturing process and the serviceability at the time of failure are poor, and the number of parts such as mounting members is large and the configuration is complicated. There was a problem.

In order to solve the above-described conventional problems, a washing and drying machine of the present invention includes an outer tub that is tilted forward and supported in a housing, an inner tub that is rotatably supported in the outer tub, a compressor, A heat pump device in which a pipe is connected so that the refrigerant circulates between a radiator that radiates heat of the compressed refrigerant, a throttle means that reduces the pressure of the high-pressure refrigerant, and a heat absorber that takes the heat away from the surroundings. A washer / dryer comprising: a heat exchange air passage that accommodates the heat absorber and the heat sink having a maximum area facing the front and rear in a substantially front-rear direction; and a blower that blows air to the heat exchange air passage Then, the heat absorber, the radiator and the compressor are integrated with the heat exchange air path to constitute a heat pump unit, and the heat pump unit is disposed in the housing space below the back of the outer tub , The heat exchange air passage An exhaust duct for flowing air from the outer tub downward is connected to the side, and an air supply duct for flowing air to the outer tub upward is connected to the outlet side of the air, and the exhaust duct from the outer tub is passed through the exhaust duct. The air that has entered the heat exchange air passage passes through the heat absorber and the radiator in a substantially front-rear direction of the casing, and flows in the left-right direction of the casing toward the air supply duct after passing through the radiator. In this case, it is configured to lead to the outer tub through the air supply duct .

  According to the present invention, it is possible to make a unit in which a heat absorber, a radiator, a compressor, and the like constituting a heat pump device disposed in a space in the housing below the back of the outer tub are integrated, and the attachment / detachment from the housing becomes easy. As a result, assembly of the manufacturing process, replacement of parts at the time of failure, and the like can be facilitated, and the number of parts can be reduced.

The present invention includes an outer tub that is tilted forward and supported in a housing, an inner tub that is rotatably supported in the outer tub, a radiator that dissipates heat from the compressor and the compressed refrigerant, and a high-pressure A heat pump device that is connected by a conduit so that the refrigerant circulates through a throttle means for reducing the pressure of the refrigerant and a heat absorber in which the reduced refrigerant takes heat from the surroundings, and a surface that is the largest area of the heat absorber and the heat radiator A washer / dryer comprising: a heat exchange air passage that is accommodated in a substantially front-rear direction of the housing; and a blower that blows air to the heat exchange air passage, wherein the heat absorber, the heat radiator, and the compression A heat pump unit is configured by integrating the heat exchanger with the heat exchange air passage, and the heat pump unit is disposed in a housing inner space below the back surface of the outer tub. The exhaust duct that flows the air from And an air supply duct for flowing air to the outer tub upward on the air outlet side, and the air that has entered the heat exchange air passage from the outer tub through the exhaust duct is It passes through the heat absorber and the radiator in a substantially front-rear direction, and after passing through the radiator, flows in one direction left and right of the housing toward the air supply duct, and is guided to the outer tub through the air supply duct. The heat absorber, the radiator, the compressor, etc. constituting the heat pump device can be integrated with the heat exchange air passage, and the empty space in the housing can be used effectively to Compactly accommodated in the lower back.

When the heat pump unit of the present invention is provided so as to be detachable from the rear surface of the housing, it can be detached from the housing in an integrated manner, making it easy to assemble the manufacturing process, replace parts in the event of a failure, etc. Can be reduced. Therefore, it is preferable that the heat pump unit is detachably provided from the back surface of the housing.

  When the air blowing means of the above invention is provided in the heat pump unit, the heat pump unit can be a unit in which components necessary for operating the heat pump device are integrated, and can be operated separately from the washing / drying machine main body. Therefore, quality control of the unit alone can be performed in the manufacturing process. At that time, it is preferable to provide the air blowing means on the side surface of the housing of the heat pump unit in the left-right direction.

  In the above invention, the heat pump unit has an installation base for installing the heat absorber, a radiator, and the compressor, and an upper cover that covers the installation base from above, and the installation base is arranged so as to surround the compressor. When the peripheral wall is protruded and the height of the peripheral wall is configured to be higher than the bottom surface of the compressor, washing water overflows outside the outer tub due to water supply abnormality in the washing process, etc. In the case where water has accumulated above the bottom surface of the compressor, even if the water tightness of the joint surface between the installation base and the top cover is low, the peripheral wall of the installation base prevents water from entering. The machine never gets wet.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by this embodiment.

(Embodiment 1)
1 is a rear view of the washing and drying machine according to the first embodiment of the present invention, FIG. 2 is a sectional view thereof, FIG. 3 is a sectional view taken along line AA of FIG. Fig. 5 is an exploded side view of the heat exchange air passage, and Fig. 5 is a system conceptual diagram showing the configuration of the heat pump device and the flow of drying air.

  As shown in the figure, the washing / drying machine is installed on the waterproof pan 25. A cylindrical outer tub 3 elastically supported by a plurality of suspensions 2 is provided inside the casing 1, and vibrations during washing and dehydration are absorbed by the suspension 2. A cylindrical inner tub 5 that accommodates the clothes 4 is rotatably provided inside the outer tub 3 and is driven to rotate by a drive motor 6. Here, the outer tub 3 and the inner tub 5 are provided in the housing 1 so that the back surface is lowered from the front surface, and the rotation axis direction of the inner tub 5 is inclined upward by 20 to 30 degrees from the horizontal direction. ing. On the front surface of the housing 1, there are provided an opening 1a through which clothes 4 are taken in and out and a door 7 for opening and closing the opening 1a. Similar opening portions 3 a and 5 b are also provided on the front side of the outer tub 3 and the inner tub 5, and the opening portion 3 a of the outer tub 3 is water-tightly connected to the opening portion 1 a of the housing 1 by a bellows 8. The bottom of the outer tub 3 has a drain port 9 for discharging washing water and is connected to a drain valve 10.

  As shown in FIG. 1, the blower 12 constituting the blower means is provided at the lower back of the housing 1. The blower 12 communicates with the air supply duct 20 provided on the outer surface of the outer tub 3, and blows the drying air that has entered from the air supply duct inlet 21 of the air supply duct 20 in the direction of the arrow c, and the air is discharged from the air supply opening 14. It supplies in the tank 3 and the inner tank 5. FIG. Further, an exhaust duct 22 communicating with the exhaust port 16 provided above the outer tub 3 is provided on the back surface of the outer tub 3, and the air that has passed through the inner tub 5 and the outer tub 3 and has exited from the exhaust port 16 is provided. Is led out from the exhaust duct inlet 24 to the exhaust duct outlet 23 as indicated by an arrow d.

  At the lower back of the outer tub 3, a heat absorber 30 and a heat radiator 32, which are plate-shaped heat exchangers constituting the heat pump device, are arranged substantially in parallel so that the surfaces having the largest areas face each other. The arrangement direction is substantially the same as the front-rear direction of the casing 1 and the inclination direction of the back surface of the outer tub 3, and the empty spaces in the casing 1 are effectively used. The heat exchange air passage 31 guides the air blown by the blower 12 from the heat absorber 30 to the heat radiator 32 in the direction of arrow a and then into the outer tub 3 and the inner tub 5. The side communicates with the exhaust duct outlet 23.

  As shown in FIGS. 1 and 3, a compressor 41 is arranged in the heat exchange air passage 31 side by side with the heat absorber 30 and the radiator 32 in the left-right direction of the housing 1. In this way, the heat absorber 30, the radiator 32, the compressor 41, the throttle means 42, the pipe line 43, and the like constituting the heat pump device are all housed in the heat exchange air passage 31, thereby integrating the heat pump unit. The heat pump unit 45 is detachably attached from the back surface of the housing 1.

  The blower 12 described above is attached to the side surface of the heat exchange air passage 31 side by side with the heat absorber 30, the radiator 32 and the compressor 41 in the left-right direction of the housing 1, and the inlet of the blower 12 is downstream of the radiator 32. It opens into the heat exchange air duct 31 on the side. The compressor 41 is installed in an air passage downstream of the radiator 32 in the heat exchange air passage 31, and the air flowing through the heat absorber 30 and the radiator 32 flows as indicated by an arrow b in FIG. The compressor 41 is configured to reach the suction port of the blower 12 after depriving the heat of the compressor 41. As shown by an arrow 40 in FIG. 5, the air blown by the blower 12 passes through the air supply duct 20, enters the outer tub 3 and the inner tub 5 from the air supply port 14, and passes through the clothing 4 in the inner tub 5. After that, it exits from the exhaust port 16, passes through the exhaust duct 22, passes through the heat absorber 30 and the radiator 32 in the heat exchange air passage 31, returns to the blower 12, and circulates.

  By disposing the compressor 41 and the blower 12 as described above, the heat pump device and the blower 12 are compactly accommodated in the lower part of the back surface of the outer tub 3 serving as an empty space in the housing 1, and the heat absorption constituting the heat pump device. The heat pump unit 45 in which the heat exchanger 30, the radiator 32, the compressor 41, and the like are integrated with the heat exchange air passage 31 can be obtained. As a result, the number of parts can be reduced, and the housing 1 can be detached from the back surface, and the heat pump unit 45 can be assembled in a separate line from the washing / drying machine main body in the manufacturing process. Will improve. And even if the heat pump device is out of order, parts can be easily repaired or replaced by taking out the heat pump unit 45 from the back surface of the housing 1.

  Further, since the blower 12 is attached to the heat pump unit 45, the heat pump device can be operated while the blower 12 is operated in a place different from the washing and drying machine main body, so that the quality control of the heat pump device in the manufacturing process. Can be easily performed. In addition, the air heated by the radiator 32 in the heat exchange air passage 31 is further heated by the heat of the compressor 41 and then further heated by the heat of the blower 12 when passing through the blower 12. 3 and the inner tank 5, the ability to dry the clothes in the inner tank 5 can be improved. Moreover, since the temperature of the compressor 41 is higher than the temperature of the air after passing through the radiator 32, the compressor 41 is cooled, and the compressor 41 is prevented from being overheated and broken. can do.

  As shown in FIG. 4, the heat exchange air passage 31 includes an installation base 46 on which the heat absorber 30, the radiator 32, and the compressor 41 are installed, and an upper lid 47 that covers this from above. In addition, the heat exchange air passage 31 has a structure in which air does not easily leak by sandwiching a seal member (not shown) such as packing between the joint surface 48 of the upper lid 47. The installation base 46 has a peripheral wall 49 that protrudes upward so as to surround the compressor 41, and the height of the peripheral wall 49 is configured to be higher than the bottom surface of the compressor 41. The height of the waterproof pan peripheral wall 26 serving as the peripheral wall of the waterproof pan 25 is higher than the bottom surface of the compressor 41, but is lower than the height of the peripheral wall 49.

  The blower 12 and the air supply duct inlet 21 communicate with each other via an air supply hose 33 made of a bellows-like stretchable flexible material, and the exhaust port 16 and the exhaust duct inlet 24 similarly have a bellows-like extension / contraction. It communicates via an exhaust hose 34 made of a possible flexible material to prevent the vibration of the outer tub 3 from being transmitted to the heat pump unit 45. Further, a lint filter 35 made of a synthetic fiber net or the like is detachably provided as a filter means for removing foreign substances in the air in the middle of the exhaust duct 22. Further, a drain water container 36 for storing dehumidified water from the heat absorber 30 is provided at the lower part of the heat exchange air passage 31, and the water stored in the drain water container 36 is discharged from the discharge port (not shown) outside the machine body. Is discharged.

  In addition, the heat pump device includes a compressor 41, a radiator 32 that radiates heat of the compressed refrigerant, a throttle means 42 that includes a throttle valve, a capillary tube, and the like for reducing the pressure of the high-pressure refrigerant, and a reduced pressure. The refrigerant that has become low pressure is connected to the heat absorber 30 that takes heat from the surroundings by a pipe 43 so that the refrigerant circulates, and the refrigerant flows and circulates in the direction of the arrow 44 in FIG. 5 to realize a heat pump cycle. To do.

  The control means 50 controls the washing, dehydrating and drying processes by driving the drive motor 6, the drain valve 10, the blower 12, the compressor 41, and the like.

  Next, the operation of the above configuration will be described. In the washing process, water is supplied until the water level reaches a predetermined water level in the outer tub 3 with the drain valve 10 closed, and the garment 4 and the inner tub 5 containing the washing water are rotated by the drive motor 6 to wash the clothing 4. I do. At this time, if any water supply abnormality such as breakage of the water supply path or water supply above a predetermined level occurs, the washing water overflows outside the outer tub 3 and the water is stored in the waterproof pan 25. In such a case, even if the water tightness of the joint surface 48 of the installation table 46 and the upper lid 47 is low, the peripheral wall 49 of the installation table 46 prevents water from entering, so the compressor 41 may get wet. Absent.

  In the rinsing step after washing, water is supplied into the outer tub 3 as in the washing step, and the garment 4 is rinsed by rotating the inner tub 5. In the dehydration step, the drain valve 10 is opened to drain water to the outside of the machine, and then the inner tub 5 containing the clothing 4 is rotated at high speed by the drive motor 6 to dehydrate.

  In the drying process, when the compressor 41 of the heat pump device is operated, the refrigerant is compressed, and the pressure circulates through the radiator 32, the throttle means 42, and the heat absorber 30. In the radiator 32, heat is released by the compression of the refrigerant, and in the heat absorber 30, the heat is absorbed by the refrigerant that has been depressurized by the throttle means 42 to become a low pressure. At this time, the blower 12 is activated, and warm air heated by heat radiation of the radiator 32 is blown into the outer tub 3 and the inner tub 5 from the air supply port 14 through the air supply duct 20. The inner tub 5 is rotationally driven by a drive motor 6 and the clothes 4 are stirred up and down.

  The warm air blown into the inner tub 5 deprives moisture when passing through the gap between the clothes 4, passes through the exhaust duct 22 through the exhaust port 16 of the outer tub 3 and passes through the lint filter 35 in a wet state. Thus, foreign matters such as lint are removed and the heat exchange air passage 31 is reached. When the wet warm air passes through the heat absorber 30, sensible heat and latent heat are taken away and dehumidified, and separated into dry air and dehumidified water. This dry air is heated again by the radiator 32 and becomes hot air. The dehumidified water dewed by the heat absorber 30 is stored in the drain water container 36 and discharged out of the apparatus through the discharge port. By repeating the above operation, the clothing 4 is dried.

  By using the heat pump device in this way, the heat absorbed by the heat absorber 30 can be recovered by the refrigerant and radiated again by the heat radiator 32 to give the garment 4 more heat than the energy input to the compressor 41. Therefore, it becomes possible to shorten the drying time and realize energy saving.

  As described above, the heat absorber 30 and the radiator 32 are accommodated in the lower back portion of the outer tub 3, and the air blown by the blower 12 is flowed from the heat absorber 30 to the radiator 32 and then into the outer tub 3. Since the heat exchanging air passage 31 is provided and the compressor 41 is accommodated in the heat exchanging air passage 31, the heat absorber 30, the radiator 32, the compressor 41, etc. constituting the heat pump device are integrated with the heat exchange air passage 31. The heat pump unit 45 can be attached and detached from the rear surface of the housing 1, making it easy to assemble a manufacturing process, replace parts in the event of a failure, and reduce the number of parts.

  In addition, since the compressor 41 is installed in the air passage on the downstream side of the radiator 32, the air heated by the radiator 32 is further heated by the heat of the compressor 41 and supplied into the outer tub 3. Therefore, the drying capacity can be improved. Further, the compressor 41 is cooled by the air after passing through the radiator 32, and the compressor 41 can be prevented from being overheated and broken.

  In addition, since the blower 12 is provided in the heat exchange air passage 31, it can be a unit that integrates the components necessary for operating the heat pump device, and can be operated separately from the main body of the washing and drying machine. Quality control of a single unit is possible in the manufacturing process.

  Further, since the blower 12 is provided on the downstream side of the radiator 32, the air heated through the radiator 32 is further heated by the heat of the blower 12 and supplied into the outer tub 3. Can be improved.

  Further, the heat exchange air passage 31 includes an installation base 46 for installing the heat absorber 30, the radiator 32, and the compressor 41, and an upper lid 47 that covers the installation base 46 from above. Since the peripheral wall 49 is protruded upward so as to surround the periphery, and the height of the peripheral wall 49 is configured to be higher than the bottom surface of the compressor 41, the washing water is discharged from the outer tub due to water supply abnormality or the like in the washing process. When the water overflows to the outside and the water accumulates above the bottom surface of the compressor 41 in the waterproof pan 25 or the like, the water tightness of the joint surface 48 of the installation base 46 and the upper lid 47 is low. However, since the peripheral wall 49 of the installation base 46 prevents water from entering, the compressor 41 does not get wet with water.

  In this embodiment, the place where the washing and drying machine is installed is on the waterproof pan 25. However, the present invention is not limited to this, and the same effect can be obtained as long as the place has some structure for storing water. can get.

  In the present embodiment, a discharge port is provided as a means for discharging the dehumidified water in the drain water container 36, but a drain pump may be provided to discharge water.

(Embodiment 2)
FIG. 6 is a cross-sectional view showing the configuration in the heat exchange air passage 31 of the washing / drying machine according to the second embodiment of the present invention. The same components as those of the first embodiment are denoted by the same reference numerals. Detailed description is omitted.

  As shown in FIG. 6, the compressor 41 is installed in the heat exchange air passage 31 separately from the air passage by the partition wall 51, and the air flowing in the heat exchange air passage 31 is absorbed by the heat absorber 30 and the heat dissipation. After passing through the device 32 linearly in the direction of arrow a, it flows in the direction of arrow b without passing through the compressor 41 and reaches the suction port of the blower 12.

  According to this configuration, since the partition wall 51 for separating the air passage and the compressor 41 is provided in the heat exchange air passage 31, the air supply duct 20 and the exhaust gas are discharged from the air supply port 14 and the exhaust port 16 in the washing process. Even when washing water or foam enters the heat exchange air passage 31 through the duct 22, the compressor 41 is separated from the air passage so that it does not get wet with water.

(Embodiment 3)
FIG. 7 shows a rear view of the washing / drying machine according to the third embodiment of the present invention. The same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 7, the blower 12 is attached to the side surface of the heat exchange air passage 31, and the suction port is at the exhaust duct outlet 23, and the blowout port is at the upstream side of the heat absorber 30 in the heat exchange air passage 31. It is open. A heat exchange air passage outlet 52 is provided above the compressor 41, and the air blown by the blower 12 is blown into the heat exchange air passage 31 and passes through the heat absorber 30 and the radiator 32. Then, it is configured to reach the heat exchange air passage outlet 52. The heat exchange air passage outlet 52 communicates with the air supply duct inlet 21 via an air supply hose 33 made of a bellows-like stretchable flexible material, and warm air is supplied from the heat exchange air passage outlet 52. It passes through the inside of the duct 20 and is supplied from the air supply port 14 into the outer tub 3 and the inner tub 5 to dry the clothes 4 in the inner tub 5.

  According to this configuration, the blower 12 sucks the air that has passed through the exhaust duct 22 on the upstream side of the heat absorber 30. Due to the characteristics of the heat pump device, the amount of heat dissipated by the radiator 32 is larger than the amount of heat absorbed by the heat absorber 30 by the amount of heat almost equal to the amount of electric power applied to the compressor 41, and therefore upstream of the heat absorber 30. The air temperature on the side is lower than the air temperature on the downstream side of the radiator 32. For this reason, since the suction air temperature of the air blower 12 becomes low compared with the case where the air blower 12 is arrange | positioned downstream of the heat radiator 32, it prevents that the temperature of the motor of the air blower 12 overheats and fails. Can do.

  As described above, since the blower 12 is provided on the upstream side of the radiator 32, the blower 12 sucks air before being heated by the radiator 32, compared to the case where it is provided on the downstream side of the radiator 32. Since the suction air temperature is lowered, it is possible to prevent the motor of the blower 12 from being overheated and malfunctioning.

  In the present embodiment, the blower 12 is provided on the upstream side of the heat absorber 30, but the same effect can be obtained even if it is provided between the heat absorber 30 and the radiator 32. In this case, since the intake air temperature of the blower 12 is further lowered, it is further advantageous for the temperature rise of the motor of the blower 12.

  As described above, the washing and drying machine according to the present invention facilitates assembly of the manufacturing process, replacement of parts in the event of failure, and the number of parts can be reduced. Therefore, the washing and drying machine provided with the heat pump device Useful for.

The rear view of the washing-drying machine of Embodiment 1 of this invention Cross section of the washer / dryer Cross section of the main part of the washing and drying machine Exploded side view of the heat exchange air passage of the washer / dryer System concept of the washer / dryer Sectional drawing of the principal part of the washing-drying machine of Embodiment 2 of this invention The rear view of the washing-drying machine of Embodiment 3 of this invention Cross-sectional view of a conventional washing and drying machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 3 Outer tank 5 Inner tank 12 Blower (blower means)
30 heat absorber 31 heat exchange air passage 32 heat radiator 41 compressor 42 throttling means 43 conduit 46 installation stand 47 upper lid 49 peripheral wall 51 partition

Claims (5)

The outer tub tilted forward and supported in the housing, the inner tub rotatably supported in the outer tub, the radiator that radiates the heat of the compressor and the compressed refrigerant, and the pressure of the high-pressure refrigerant A heat pump device in which pipes are connected so that the refrigerant circulates through a throttle means for reducing the pressure and a heat absorber in which the reduced pressure refrigerant takes heat from the surroundings, and a surface that is the largest area of the heat absorber and the heat radiator A washer-dryer comprising a heat exchange air passage accommodated in a substantially front-rear direction and a blower for blowing air to the heat exchange air passage, wherein the heat absorber, the radiator and the compressor are heated. A heat pump unit is formed integrally with the exchange air passage, and the heat pump unit is disposed in the housing inner space below the back of the outer tub, and the heat exchange air passage is configured to supply air from the outer tub to the air inlet side. When connecting an exhaust duct that flows downward In addition, an air supply duct for flowing air to the outer tub upward is connected to the air outlet side, and the air that has entered the heat exchange air passage from the outer tub through the exhaust duct is an abbreviation of the casing. Passing through the heat absorber and the radiator in the front-rear direction, and after passing through the radiator, flows in one direction to the left and right of the housing toward the air supply duct, and then leads to the outer tub through the air supply duct. Constructed washing dryer. The washing / drying machine according to claim 1, wherein the heat pump unit is detachably provided from the back surface of the housing. The washing / drying machine according to claim 1 or 2 , wherein the blowing means is provided in the heat pump unit. The washing / drying machine according to claim 3 , wherein the blowing means is provided on a side surface of the housing of the heat pump unit in the left-right direction. The heat pump unit has an installation base on which a heat absorber, a radiator, and a compressor are installed, and an upper lid that covers the installation base from above, and the installation base projects a peripheral wall upward so as to surround the compressor. The laundry dryer according to any one of claims 1 to 4 , wherein a height of the peripheral wall is higher than a bottom surface of the compressor.

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