JP4581688B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washing / drying machine that performs washing / dehydration and drying in the same rotating tank.

  A conventional drum-type washing and drying machine will be described with reference to FIG.

  In FIG. 6, a cylindrical water tank 3 elastically supported by a plurality of suspensions 2 is provided inside the housing 1, and the suspension 2 absorbs vibration during washing and dehydration. Inside the water tank 3, a cylindrical and horizontal axis type rotating tank 5 that accommodates clothes 4 that are objects to be washed or dried is rotatably disposed, and a rotation shaft 6 a is rotated by a drive motor 6 to be rotated. To do.

  A plurality of baffles (not shown) for stirring clothes are provided on the inner wall of the rotating tub 5, and a plurality of small holes 5 a are provided on the peripheral wall of the rotating tub 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 openings 3 a and 5 b are also provided on the front side of the water tank 3 and the rotating tank 5, and the opening 3 a of the water tank 3 is water-tightly connected to the opening 1 a of the housing 1 by a bellows 8. The bottom of the aquarium 3 has a drain port 9 for discharging washing water, and 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 rotary tank 5. The circulation duct 15 performs dehumidification of the damp drying air that has passed through the rotary tank 5 and the water tank 3, and has one end connected to the exhaust port 16 at the bottom of the water tank 3 and the other end connected to the blower 12. . 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 rotating tub 5, and the operation is started. First, when the water supply valve 17 opens a water supply port (not shown) on the washing water side and a predetermined amount of water is supplied into the water tank 3 and the rotary tank 5, the drive motor 6 operates to rotate the rotary tank 5. The cleaning operation is performed. After a predetermined time, the drive motor 6 is stopped, the drain valve 10 is opened, and dirty water is drained from the rotary tank 5 and the water tank 3 and drained to a drainage place outside the machine via the drain hose 11.

  Next, water is supplied to the water tank 3 and the rotary tank 5 in the same manner as described above, and a rinsing operation is performed. When the rinsing is completed, the drain valve 10 is opened and drained, and then the rotating 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 rotating 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 into the rotary tank 5. This hot air takes away moisture from the garment 4, then passes through the water tank 3 through the small hole 5 a of the rotating tub 5 and reaches the circulation duct 15 through the exhaust port 16.

  At this time, the water supply valve 17 opens a water supply port (not shown) 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. By circulating hot air through the circulation path of the blower 12, the heater 13, the air supply port 14, the rotary tank 5, the water tank 3, the exhaust port 16, and the circulation duct 15, the clothes 4 in the rotary tank 5 can be dried. it can.

  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, in order to recover and effectively use the heat used when drying clothes, a compressor that compresses the refrigerant, a radiator that dissipates the heat of the compressed refrigerant, and a pressure of the high-pressure refrigerant are reduced. It has been proposed to provide a clothes dryer with a heat pump device that is connected by a pipe line so that the refrigerant circulates between the throttling means and the heat absorber that draws heat from the surroundings of the reduced pressure and low pressure refrigerant (for example, , See Patent Document 1). According to this configuration, it has been found that the clothes can be efficiently dried by condensing moisture evaporated from the clothes onto the heat absorber.
JP 7-178289 A

  However, in the above conventional heat pump type washing and drying machine, it is essential to provide at least a compressor, a radiator, a throttle means, and a heat absorber that constitute a refrigeration cycle, and further, a compressor, a radiator, a throttle means, and a heat absorber. There are many components compared to a washing and drying machine using an electric heater for drying, such as a refrigerant pipe for sequentially connecting the units, and the piping space is also required, and a large heat pump device, In order to store the inside of the washing / drying machine, there was a problem that the washing / drying machine main body itself was enlarged.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a heat pump type washing / drying machine in which an increase in size is suppressed.

In order to solve the above-described conventional problems, a washing and drying machine of the present invention includes a water tank elastically supported in a housing, a rotary tank that is rotatably provided in the water tank and accommodates clothes, a compressor, A radiator that dissipates the heat of the refrigerant compressed by the compressor, a throttling means for depressurizing the high-pressure refrigerant, a heat absorber that depressurizes the low-pressure refrigerant from the surroundings, and the radiator Blower means for supplying heated air into the rotating tub, and a circulation duct for circulating air in the rotating tub to the radiator through the heat absorber, the radiator and the heat absorber being opposed to each other. Disposed in the circulation duct, and a receiver for storing the refrigerant condensed and liquefied by the radiator is arranged in a connection pipe for guiding the refrigerant from the radiator to the throttle means, and the radiator and the heat absorber the heat dissipation as well as disposing the throttle means between And disposing the receiver within said circulation duct between the throttling means and the radiator, which has to be heated circulating air in said throttle means and said receiver, disposed opposite Since the throttle means is accommodated between the heat radiator and the heat absorber, a compact circulation duct can be configured. Furthermore, since the throttle means and the liquid receiver can be used as a part of the radiator, it is possible to reduce the size of the radiator, and a compact heat pump type washing and drying machine that suppresses the increase in size. Can be realized.

In the washing / drying machine of the present invention, since the throttle means is accommodated between the radiator and the heat absorber disposed opposite to each other, a compact circulation duct can be configured. Furthermore , since it is possible to use the squeezing means and the liquid receiver as a part of the radiator, the radiator can be reduced in size, and a compact heat pump type washing / drying machine that suppresses the increase in size can be realized. be able to.

The first invention dissipates heat from a water tank elastically supported in a housing, a rotary tank that is rotatably provided in the water tank and accommodates clothes, a compressor, and a refrigerant compressed by the compressor. A radiator, a throttling means for depressurizing the high-pressure refrigerant, a heat absorber from which the depressurized and low-pressure refrigerant takes heat from the surroundings, and supplying air heated by the radiator into the rotating tank and blowing means, together with the air in the rotating tub includes a circulation duct for circulating to the radiator through the heat absorber, wherein is opposed radiator and the heat absorber is disposed within the circulation duct, wherein A liquid receiver for storing refrigerant condensed and liquefied by a radiator is arranged in a connecting pipe that leads the refrigerant from the radiator to the throttle means, and the throttle means is disposed between the radiator and the heat absorber and the heat dissipation. In the circulation duct between the vessel and the throttle means And disposing the receiver, the radiator, between the diaphragm obtained by way of heating the circulating air unit and the liquid receiver, radiator and heat absorber disposed in opposed, throttle means Therefore, a compact circulation duct can be configured. Furthermore, since the throttle means can be used as a part of the radiator, it is possible to reduce the size of the radiator and realize a compact heat pump type washing and drying machine that suppresses the increase in size. Can do . It becomes possible to use the receiver as part of the radiator in is al,
Since it is possible to reduce the size of the radiator, it is possible to realize a compact heat pump type washing and drying machine that suppresses the increase in size.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is an external perspective view of the washing and drying machine according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view of the washing and drying machine as viewed from the rear surface 1b, and FIG. FIG. 4 is a system conceptual diagram showing a configuration of a heat pump device mounted on the washing / drying machine and a flow of drying air.

  As shown in FIGS. 1 to 4, a cylindrical water tub 3 elastically supported by a plurality of suspensions 2 is provided inside the housing 1, and vibrations during washing and dehydration are absorbed by the suspension 2. Inside the water tank 3, a cylindrical and horizontal axis type rotating tank 5 that accommodates the clothes 4 is rotatably provided, and is driven to rotate by a drive motor 6 through a rotating shaft 6 a. 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 openings 3 a and 5 b are also provided on the front side of the water tank 3 and the rotating tank 5, and the opening 3 a of the water tank 3 is water-tightly connected to the opening 1 a of the housing 1 by a bellows 8. The bottom of the water tank 3 has a drain port 9 for discharging washing water and is connected to a drain valve 10.

  The blower 12 constituting the blowing means is provided on the upper part of the water tank 3 so as to be positioned in a corner space formed by the upper surface 1c and the side surface 1d of the housing 1. The blower 12 communicates with an air supply duct 20 provided on the outer surface of the water tank 3, and blows air in the direction of arrow c from the air supply duct inlet 21 of the air supply duct 20 to the inside of the rotary tank 5 from the air supply port 14. To supply. Further, an exhaust duct 22 communicating with the exhaust port 16 on the back surface of the water tank 3 is provided on the outer surface of the water tank 3, and the air that has passed through the rotary tank 5 and the water tank 3 and has exited the exhaust port 16 is indicated by an arrow d. To the exhaust duct outlet 23.

  In the lower part of the water tank 3, a heat absorber air passage 31 for flowing air in the direction of arrow a to a heat absorber 30 comprising a heat exchanger constituting the heat pump device, and a heat radiator 32 similarly comprising a heat exchanger indicated by arrow b A radiator air passage 33 for flowing air in a direction is arranged in a horizontal direction, and the heat absorber air passage 31 and the radiator air passage 33 communicate with each other through a circulation duct 34 and pass through the heat absorber 30 and the radiator 32. The air that flows is designed to flow linearly.

  The heat absorber air passage 31, the radiator air passage 33, and the circulation duct 34 are integrally formed and are fixed to an attachment base 35 in the housing 1.

  The inlet 31a of the heat absorber air passage 31 and the exhaust duct outlet 23 communicate with each other via an exhaust port hose 36 made of a bellows-like stretchable flexible material. Similarly, the outlet 33 a of the radiator air passage 33 and the air supply duct inlet 21 communicate with each other via an air supply hose 37 made of a bellows-like stretchable flexible material. An air filter 38 made of a synthetic fiber net or the like is detachably provided at the inlet 31a of the heat absorber air passage 31 as filter means for removing foreign substances in the air. Further, a discharge port 39 for discharging the dehumidified water is provided in the lower part on the downstream side of the heat absorber air passage 31.

  After the drying air blown by the blower 12 passes through the air supply duct 20 and enters the rotary tank 5 through the air supply port 14 and passes through the clothing 4 in the rotary tank 5, as indicated by an arrow 40 in FIG. 4. , Exits the exhaust port 16, passes through the exhaust duct 22, passes through the heat absorber 30 of the heat sink air passage 31, and passes through the circulation duct 34 and around the radiator 32 and the compressor 41 of the radiator air passage 33. And it returns to the air blower 12 and circulates.

  The heat pump device also 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 radiator 32. A pipe 44 that sequentially connects the connection pipe 43 for guiding the liquefied refrigerant to the throttling means 42 and the heat absorber 30 from which the reduced pressure and low pressure refrigerant takes heat from the surroundings so that the refrigerant circulates. The refrigerant flows in the direction of arrow 45 and circulates to realize a heat pump cycle. In addition, between the radiator 32 and the heat absorber 30 that are arranged opposite to each other, the throttle means 42 and its connection pipe 43 are accommodated.

  The operation of the washing / drying machine having the above configuration will be described.

  In the cleaning process, water is supplied until the water level reaches a predetermined level in the water tank 3 with the drain valve 10 closed, and the drive motor 6 rotates the clothes 4 and the rotating tank 5 containing the cleaning water to perform cleaning. At this time, a part of the cleaning water enters the exhaust duct 22, but the exhaust duct 22 has a shape in which the path is lifted upward so that the cleaning water does not easily enter the heat absorber 30.

  Further, in the rinsing process after washing, water is supplied into the water tank 3 as in the washing process, and the garment 4 is rinsed by rotating the rotating tank 5. In the dehydration step, the drain valve 10 is opened to drain water to the outside of the machine, and then the rotating 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 connecting pipe 43, the throttle means 42, and the heat absorber 30. In the radiator 32, the high-temperature and high-pressure refrigerant compressed by the compressor 41 exchanges heat with the circulating air to heat the circulating air while condensing and liquefying, and the connecting pipe 43 further heats the circulating air while liquefying the refrigerant. In the supercooling state, the expansion means 42 decompresses and expands the liquid refrigerant in the supercooled state, and the heat absorber 30 absorbs heat from the circulating air while evaporating and evaporating by exchanging heat with the circulating air. Dehumidification is performed by lowering the temperature and condensing the humidity in the air.

  The blower 12 blows the warm air heated by the heat radiation of the radiator 32, the connection pipe 43 and the compressor 41 through the supply duct 20 into the rotary tank 5 from the supply port 14. The rotating 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 rotating tub 5 deprives moisture when passing through the gap between the clothes 4, passes through the exhaust duct 22 and the exhaust port hose 36 through the exhaust port 16 of the water tub 3 in a wet state, and passes through the air filter 38. When passing through, foreign matter such as lint is removed and the heat absorber 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 enters the radiator air passage 33 through the circulation duct 34 and is heated again by the radiator 32, the connection pipe 43 and the compressor 41 to become warm air, and the air supply hose 37 and the air supply duct 20. And circulate to the blower 12.

  On the other hand, the dehumidified water dewed by the heat absorber 30 is discharged out of the machine from the bottom discharge port 39. 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, since the throttling means 42 and its connecting pipe 43 are accommodated between the heat radiator 32 and the heat absorber 30 that are arranged opposite to each other that constitute the heat pump device, a compact circulation duct can be configured. Become. Further, since the throttle means 42 and the connecting pipe 43 can be used as a part of the radiator 32, the radiator 32 can be reduced in size, and a compact heat pump type washing and drying machine that suppresses the increase in size. Can be realized.

(Embodiment 2)
FIG. 5 is a system conceptual diagram showing the configuration of the heat pump device of the washing / drying machine and the flow of drying air in the second embodiment of the present invention. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The operation of the washing machine during the washing process and the rinsing process is the same as that of the first embodiment, and a description thereof will be omitted. The drying process will be described.

  In this embodiment, the radiator 32, the connecting pipe 43, the throttle means 42 and the heat absorber 30 are sequentially connected, and the receiver pipe 46 is provided in the connecting pipe 43 between the radiator 32 and the throttle means 42. It is.

  When the compressor 41 of the heat pump device is operated in the drying process, the refrigerant is compressed, and this pressure circulates through the radiator 32, the connection pipe 43, the liquid receiver 46, the throttle means 42, and the heat absorber 30.

  In the radiator 32, the high-temperature and high-pressure refrigerant compressed by the compressor 41 exchanges heat with the circulating air to heat the circulating air while being condensed and liquefied, and the liquefied refrigerant is further liquefied by the connection pipe 43 and the liquid receiver 46. Then, the circulating air is heated to be in a supercooled state, and the expansion means 42 decompresses and expands the liquid refrigerant in the supercooled state, and the heat absorber 30 circulates while evaporating and evaporating by heat exchange with the circulating air. It absorbs heat from the air, lowers the temperature of the circulating air, and dehumidifies it by condensing the humidity in the air.

  At this time, the liquid refrigerant that normally accumulates inside the radiator 32 decreases by the content integral of the receiver 46, and the effective heat transfer area of the radiator 32 increases. That is, it is possible to reduce the size of the radiator 32 as the effective heat transfer area of the radiator 32 is increased.

  As described above, since the throttling means 42, the liquid receiver 46, and the connecting pipe 43 thereof are accommodated between the heat radiator 32 and the heat absorber 30 that are arranged opposite to each other constituting the heat pump device, a compact circulation duct is provided. Can be configured. Further, since the throttling means 42, the liquid receiver 46 and the connection pipe 43 can be used as a part of the radiator 32, the radiator 32 can be reduced in size, so that the size reduction is suppressed. A heat pump type washing and drying machine can be realized.

  As described above, the washing / drying machine according to the present invention can be configured as a compact circulation duct because the throttle means is housed between the radiator and the heat absorber disposed opposite to each other. Further, since the throttle means can be used as a part of the radiator, the radiator can be reduced in size, and can be applied to various dryers such as a washing dryer having a heat pump device.

1 is an external perspective view of a washing / drying machine according to Embodiment 1 of the present invention. Cross section of the washer / dryer AA sectional view of FIG. System concept of the washer / dryer System conceptual diagram of a washing and drying machine in Embodiment 2 of the present invention Cross-sectional view of a conventional washing and drying machine

DESCRIPTION OF SYMBOLS 1 Case 3 Water tank 5 Rotating tank 12 Blower (blower means)
30 heat absorber 31 heat absorber air passage 32 heat radiator 33 heat radiator air passage 34 circulation duct 41 compressor 42 throttling means 43 connection pipe 46 liquid receiver

Claims (1)

A water tank elastically supported in the housing, a rotary tank that is rotatably provided in the water tank and accommodates clothes, a compressor, a radiator that dissipates heat of the refrigerant compressed by the compressor, and a high-pressure Throttle means for depressurizing the refrigerant, a heat absorber from which the depressurized and low-pressure refrigerant takes heat from the surroundings, a blower means for supplying the air heated by the radiator into the rotating tank, and the rotation A circulation duct that circulates the air in the tank to the radiator through the heat absorber, and is disposed in the circulation duct with the radiator and the heat absorber facing each other, and is condensed and liquefied by the radiator. A liquid receiver for storing the refrigerant is disposed in a connection pipe for guiding the refrigerant from the radiator to the throttle means, the throttle means is disposed between the radiator and the heat absorber, and the radiator and the throttle means. The receiver in the circulation duct between Was set, the heat radiator, washing and drying machine which is adapted to heat the circulating air by the throttle means and the receiver.

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