JP4259463B2 - 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 washing and drying machine generally has a configuration as shown in FIG.

  Hereinafter, the configuration will be described. As shown in FIG. 7, 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 arranged, and a rotating shaft 6 a is rotated by a drive motor 6 to rotate the rotating tank. 5 is driven to rotate.

  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 outlet 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 washing / drying machine.

  Reference numeral 12 denotes a blower that blows and supplies 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.

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

  When performing the washing operation, 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 the water supply port 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 is activated and the rotary tank 5 is rotationally driven to perform a washing operation. . 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 the outside through 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 ends, the drying operation starts. In the drying step, the air heated by the heater 13 while stirring the clothes 4 by rotating the rotary tub 5 at a low speed by the drive motor 6 becomes warm air, and is blown in the direction of arrow a by the blower 12. 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 the heat during drying and use it effectively, a compressor that compresses the refrigerant, a radiator that dissipates the heat of the compressed refrigerant, and the pressure of the high-pressure refrigerant are reduced. It has been proposed to provide a washing and drying machine with a heat pump device that is connected by a pipe line so that the refrigerant circulates between the throttling means and a heat absorber that takes the heat from the surroundings of the refrigerant that has been decompressed to a low pressure ( 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.
Japanese Examined Patent Publication No. 6-75628

  However, as described above, the heat pump device provided in the conventional washing / drying machine connects the compressor, the radiator, the throttling means, and the heat absorber with a pipe line such as a copper pipe to supply a high-pressure refrigerant. Although it circulates, heat exchangers, such as a heat radiator and a heat sink, are usually a fin tube type, using aluminum as a fin material and using a copper tube as a tube. In washing and drying machines, undiluted washing water and organic acids may enter the drying air circuit and corrode the heat exchanger, reducing heat exchange performance and leaking refrigerant. there were. In addition, measures to reduce air volume and heat exchange performance due to lint passing through the wind circuit adhering to the heat exchanger were indispensable.

  The present invention solves the above-described conventional problems, and makes it difficult for the radiator and the heat absorber to be affected by corrosion caused by washing water and organic acid, and to reduce air volume and heat exchange performance due to lint, reliability, durability, An object of the present invention is to provide a washing dryer having excellent drying performance.

In order to solve the above-described conventional problems, a clothes drying apparatus according to the present invention includes a water tank elastically supported in a housing, a rotary tank rotatably provided in the water tank and containing clothes, and a compression for compressing a refrigerant. A radiator that radiates heat of the refrigerant, a throttle means for reducing the pressure of the high-pressure refrigerant, a heat absorber that draws heat from the surroundings by the reduced-pressure and low-pressure refrigerant, and the water tank A heat exchange air passage for guiding the drying air into the water tank after flowing the wet air blown from the inside of the water tank by the air blowing means to the heat absorber and the radiator in order; An air supply port provided in the water tank for guiding the drying air into the water tank, and a drain hole is provided in a heat exchange air passage on the downstream side of the drying air of the radiator, and the air supply port discharge from the drainage hole penetration with foam or washing water to the heat exchange air path from Obtained by a configuration in which, for bubbles or washing water has invaded from the air supply port is less likely to contact with the heat exchanger der Ru release heat sink, foam or washing water hardly reaches the radiator is a heat exchanger Since it can be reliably discharged from the drain hole, the heat resistance of the heat exchanger is improved, so the heat exchange performance is less likely to deteriorate , the reliability and durability of those parts are improved, and excellent drying performance is achieved. A washing / drying machine that can be held can be realized.

The washing and drying machine of the present invention makes heat exchangers such as heat absorbers and radiators less susceptible to corrosion by washing water and organic acids, air volume drop and heat exchange performance drop due to lint, reliability, durability, drying A washing and drying machine with excellent performance can be realized.

A first invention includes a water tank elastically supported in a housing, a rotary tank that is rotatably provided in the water tank and accommodates clothing, a compressor that compresses a refrigerant, and a radiator that radiates heat of the refrigerant. A throttling means for reducing the pressure of the high-pressure refrigerant, a heat absorber that takes heat away from the surroundings by the reduced-pressure low-pressure refrigerant, a blower means for blowing air into the water tank, and the blower means a heat exchange air path for guiding drying air after flowing in sequence the humid air blown from the water tank to the radiator and the heat absorber into the water tank, said to guide the drying air into the water tank A water supply opening provided in the water tank, a drain hole is provided in a heat exchange air path downstream of the drying air of the radiator, and bubbles or cleaning that has entered the heat exchange air path from the air supply opening water in what was configured to discharge from the drainage holes, penetrated from the air supply port Or to wash water less likely to contact with the heat exchanger der Ru release heat sink, since bubbles or wash water which can be discharged from the arrival hard to reliably drain holes to the radiator is a heat exchanger, the heat exchanger Since the corrosion resistance of the vessel is improved, the heat exchange performance is less likely to be lowered , the reliability and durability of those parts are improved, and a washing / drying machine capable of maintaining excellent drying performance can be realized. .

In particular, the second invention comprises a water storage chamber for storing foam or washing water that has entered the heat exchange air passage from the air supply port in the first invention , and heat exchange downstream of the drying air of the radiator. The drainage hole provided in the air passage is configured to communicate with the water storage chamber, and bubbles or washing water that has entered from the air supply port are less likely to come into contact with a radiator that is a heat exchanger, and water is stored from the drainage hole. since the flow directly to the chamber, and improved corrosion resistance of the heat exchanger, the heat exchange performance is unlikely to decrease, the reliability of these parts, to improve durability, washing and drying that can retain excellent drying performance Machine can be realized.

In the third invention, the water storage chamber of the second invention is configured to store the condensed water generated by the heat absorber, and can also be stored in the water storage chamber before the condensed water is discharged outside the apparatus.

According to a fourth aspect of the present invention, there is provided a drainage hole communicating with the water storage chamber in the heat exchange air passage upstream of the drying air of the heat absorber of the third invention. Since water is less likely to come into contact with the heat sink, which is a heat exchanger, and flows directly into the water storage chamber through the drainage hole, the corrosion resistance of the heat exchanger is improved, heat exchange performance is less likely to deteriorate, and the reliability of these components In addition, it is possible to realize a washing / drying machine capable of improving durability and maintaining excellent drying performance.

In the fifth aspect of the present invention , an inclined portion is provided so that the upstream side is lower in the heat exchange air path upstream of the drying air of the heat absorber of the fourth aspect of the invention, and a drainage hole is arranged upstream of the inclined portion. Therefore, the foam or washing water that has entered the heat exchange air passage is less likely to come into contact with the heat absorber that is the heat exchanger, and flows directly into the water storage chamber through the drainage hole, improving the corrosion resistance of the heat exchanger and heat exchange. It is possible to realize a washing / drying machine that is less likely to deteriorate in performance, improves the reliability and durability of those parts, and can maintain excellent drying performance.

In the sixth aspect of the invention, in particular, in the heat exchange air passage on the downstream side of the drying air of the radiator of any one of the first to fifth aspects, an inclined portion is provided so that the downstream side is lowered, and the downstream of the inclined portion. With a drain hole on the side, bubbles or washing water that has entered from the air supply port will not easily come into contact with the radiator that is the heat exchanger, so the bubbles or washing water will reach the radiator that is the heat exchanger. Because it is difficult to reliably discharge from the drain hole, the corrosion resistance of the heat exchanger is improved, so the heat exchange performance is less likely to deteriorate, the reliability and durability of those parts are improved, and excellent drying performance It is possible to realize a washing and drying machine capable of holding

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is an external perspective view of the washing / drying machine according to the first embodiment of the present invention, FIG. 2 is a sectional view of the washing / drying machine, FIG. 3 is a sectional view taken along the line A-A in FIG. FIG. 5 is a cross-sectional view taken along the line B-B in FIG. 2, and FIG. 5 is a system conceptual diagram showing a configuration of a heat pump device mounted on the washing and drying machine and a flow of drying air.

  As shown in FIGS. 1 to 5, a cylindrical water tank 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 the rotating tank 5 is rotationally driven by the drive motor 6. 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 (not shown) for discharging washing water, and is connected to a drain valve (not shown) and a drain hose 11.

  The blower 12 forming the blowing means is provided on the outer peripheral surface of the water tank 3 so as to be positioned in a corner space formed by the upper surface 1 d of the housing 1 and the water tank 3. Similarly to the heat sink air passage 22 that is a part of the heat exchange air passage for flowing air in the direction of the arrow e to the heat absorber 21 including the heat exchanger constituting the heat pump device at the lower back of the housing 1. A heat exchanger air passage 24 that is a part of a heat exchange air passage that allows air to flow in the direction of the arrow f is arranged side by side so that each heat exchanger has a substantially letter C shape. It is installed. For this reason, the heat absorber air passage 22 and the radiator air passage 24 are communicated with each other through a circulation duct 25, and the air passing through the heat absorber 21 and the heat radiator 23 efficiently flows in a substantially U shape. Further, since the heat absorber air passage 22, the heat radiator air passage 24, and the circulation duct 25 can be configured integrally and compactly, they are fixed to the lower back portion of the housing 1 as a unit.

  The drying air blown by the blower 12 passes through the heat sink 21 of the heat sink air passage 22 through the flexible connecting pipe 19 and passes through the radiator 23 of the radiator air passage 24 through the circulation duct 25. Then, as shown by an arrow b in FIG. 3, after passing through the flexible connecting pipe 19 and the air passage 20 and entering the rotary tank 5 from the air supply port 14 and passing through the clothing 4 in the rotary tank 5, the exhaust port It comes out of 16, returns to the air blower 12, and circulates.

  Further, as shown in FIG. 5, the heat pump device includes a vertical compressor 26, a radiator 23 that radiates heat of the compressed refrigerant, a throttle valve, a capillary tube, and the like for reducing the pressure of the high-pressure refrigerant. The throttling means 27 and the refrigerant that has been decompressed to a low pressure are connected by a conduit 28 so that the refrigerant circulates through the heat absorber 21 that draws heat from the surroundings, and the refrigerant flows and circulates in the direction of the arrow h. And form a heat pump cycle.

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

  In the cleaning process, water is supplied into the water tank 3 with a drain valve (not shown) closed until a predetermined water level is reached, and the clothes motor 4 and the rotating tank 5 containing the cleaning water are rotated by the driving motor 6 for cleaning. I do.

  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 process, the drain valve 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 vertical compressor 26 of the heat pump device is operated, the refrigerant is compressed, and this pressure circulates through the radiator 23, the throttle means 27, and the heat absorber 21. In the radiator 23, heat is released by the compression of the refrigerant, and in the heat absorber 21, the heat is absorbed by the refrigerant which has been decompressed by the throttle means 27 and becomes a low pressure. At this time, the blower 12 is activated, and warm air heated by the heat radiation of the radiator 23 is blown into the rotary tank 5 through the air supply path 14 from the air 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 blower 12 through the exhaust port 16 of the water tub 3 in the wet state, and reaches the heat absorber air passage 22. When the wet warm air passes through the heat absorber 21, sensible heat and latent heat are removed, and the dehumidified air is separated into dry air and condensed water. The dry air enters the radiator air passage 24 through the circulation duct 25, is heated again by the radiator 23, becomes warm air, and circulates to the air passage 20. Condensed water is stored in a water storage chamber 29 provided in the lower part of the heat absorber 21 and discharged from the drain hose 11 to the outside of the machine via the drain pump 35.

  In this way, by using the heat pump device, the heat absorbed by the heat absorber 21 is recovered by the refrigerant and again radiated by the radiator 23 to give the clothing 4 more heat than the energy input to the vertical compressor 26. Therefore, drying efficiency can be improved, so that drying time can be shortened and energy saving can be realized.

  Further, the heat sink air passage 22 on the upstream side of the heat absorber 21 has a drain hole a30 communicating with the water storage chamber 29, and the upstream side of the heat absorber air path 22 between the heat absorber 21 and the drain hole a30 is low. An inclined portion a32 is provided so that the radiator air passage 24 on the downstream side of the radiator 23 has a drain hole b31 communicating with the water storage chamber 29, and between the radiator 23 and the drain hole b31. Since the inclined portion b33 is provided in the radiator air passage 24 so that the downstream side is lowered, the foam or the washing water that has entered the heat exchange air passage is transferred to the heat absorber 21 and the radiator 23 that are heat exchangers. It flows directly into the water storage chamber 29 from the drain hole a30 or the drain hole b31 without contact. Further, since the inclined part a32 and the inclined part b33 are provided, the foam or the washing water can surely flow into the water storage chamber 29 without reaching the heat absorber 21 and the radiator 23. Since the corrosion resistance of the heat absorber 21 and the radiator 23 is improved, the heat exchange performance is not deteriorated, the reliability and durability of the heat pump device are improved, and excellent drying performance can be maintained.

  Further, the water storage chamber 29 is provided with a filter 34 for separating lint mixed in the liquid flowing into the water storage chamber 29. Since the water storage chamber 29 communicates with the drainage pump 35, the drainage hole a30 or The lint and impurities in the liquid that has passed through the drain hole b31 are separated by the filter. Since the liquid that has passed through the filter 34 is sucked and discharged by the drainage pump 35 and discharged from the drainage hose 11, the lint does not pass through the drainage pump 35 and is excellent in reliability and durability.

  Further, the vertical compressor 26 is separated from the heat exchange air passage by the air passage constituting member 36 forming the heat exchange air passage, and a predetermined amount of gap is provided at the upper portion of the vertical compressor 26 by the air passage constituting member 36. Since the support portion 37 is formed, the vertical compressor 26 does not come into contact with bubbles or washing water passing through the heat exchange air passage and is excellent in corrosion resistance. Even if a large excitation force is applied due to external vibration, the vertical compressor 26 and the support portion 37 come into contact with each other, so that the vibration of the vertical compressor 26 is suppressed. The pipe 28 is not bent or bent, and is surrounded by the surroundings, so that the soundproofing effect is also excellent.

  Furthermore, if the cushioning material 38 is provided between the support portion 37 and the vertical compressor 26, the impact can be reduced even if a large excitation force is generated. Moreover, since it has a function as a sound absorbing material, it is effective for reducing noise.

  Further, since the terminal 39 of the upper shell portion 26a of the vertical compressor 26 is surrounded by the air passage constituting member 36, the terminal 39 portion is protected from bubbles or washing water, and therefore, the insulation voltage resistance is excellent.

  In the present embodiment, the opening 1a through which the clothes 4 are put in and out is provided on the surface opposite to the surface of the water tank 3 having the drive motor 6 of the rotating tank 5. However, the opening 1a is not limited to the place, but is a water tank. 3 and the rotary tank 5 may be set at any position.

  Although the support portion 37 has a substantially cylindrical shape, it is possible to provide a plurality of slits in the vertical direction so as to reduce the impact at the time of contact between the vertical compressor 26 and the support portion 37.

  Further, a predetermined amount of gap is provided between the vertical compressor 26 and the buffer material 38, but the gap may be omitted.

  Further, the refrigerant used in the heat pump device is not limited to the chlorofluorocarbon system, and natural carbon dioxide, isobutane, or propane may be used. In this embodiment, a vertical compressor is used, but a horizontal compressor may be used.

(Embodiment 2)
FIG. 6 is a cross-sectional view of the main part of the washing / drying machine according to the second embodiment of the present invention, and FIG. 7 is a right side view of the main part. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In this embodiment, as shown in FIGS. 6 and 7, the inclined surface of the inclined portion c <b> 40 or the inclined portion b <b> 41 is set in the vertical direction, so that foam or washing water flows directly into the water storage chamber 29 without contacting the radiator 23. Therefore, since the corrosion resistance of the radiator 23 is improved, it is possible to prevent the heat exchange performance from being lowered, improve the reliability and durability of the heat pump device, and maintain excellent drying performance. Further, by combining the support portion 37 of the vertical compressor 26 and the air path component 36, the periphery of the vertical compressor 26 can be made compact, and corrosion resistance, water resistance, soundproofing, It is possible to provide a washing / drying machine having excellent anti-vibration properties.

  As described above, the washing / drying machine according to the present invention guides the foam or the washing water in the heat exchange air passage to the water storage chamber through the drain hole, so that the influence of corrosion on the heat exchanger and Useful for washing machines that perform drying and dehumidification because the wind circuit is less susceptible to reduced air volume and heat exchange performance, improves the reliability and durability of the heat pump device, and maintains excellent drying performance. It is.

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. BB sectional view of FIG. System concept of the washer / dryer Sectional drawing of the principal part of the heat exchange air path part of the washing-drying machine in Embodiment 2 of this invention Cross section of the main part of the heat exchange air passage Cross-sectional view of a conventional washing and drying machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing | casing 3 Water tank 4 Clothing 5 Rotating tank 6 Drive motor 12 Blower (blower means)
14 Air supply port 20 Air supply path 21 Heat absorber 22 Heat absorber air path (Heat exchange air path)
23 Radiator 24 Radiator air path (Heat exchange air path)
26 Vertical compressor (compressor)
28 Pipe line 29 Reservoir 30 Drain hole a
31 Drain hole b
32 Inclined part a
33 Inclined part b
34 Filter 35 Drainage pump 36 Airway component 37 Support section 38 Buffer material 39 Terminal

Claims (6)

A water tank elastically supported in the housing, a rotary tank that is rotatably provided in the water tank and accommodates clothing, a compressor that compresses the refrigerant, a radiator that radiates the heat of the refrigerant, and a high-pressure refrigerant A throttle means for reducing the pressure, a heat absorber that draws heat from the surroundings by the reduced pressure and low pressure refrigerant, a blower means for blowing air into the water tank, and blown from the water tank by the blower means. A heat exchange air passage that guides the drying air into the water tank after flowing wet air through the heat absorber and the radiator in order, and an air supply provided in the water tank to guide the drying air into the water tank as well as and a mouth, from the downstream side of the heat exchange air path to the drainage hole is provided, the drain hole was a foam or wash water entering the air inlet heat exchange air path from the drying air in the radiator A washer-dryer with a discharge configuration . A water storage chamber for storing foam or washing water that has entered the heat exchange air passage from the air supply port is provided, and a drain hole provided in the heat exchange air passage on the downstream side of the drying air of the radiator communicates with the water storage chamber. The washing / drying machine according to claim 1, wherein the washing / drying machine is configured as described above. The washing / drying machine according to claim 2, wherein the water storage chamber is configured to store dew condensation water generated by the heat absorber. The washing / drying machine according to claim 3, wherein a drainage hole communicating with the water storage chamber is provided in a heat exchange air passage upstream of the drying air of the heat absorber. The washing / drying machine according to claim 4 , wherein an inclined portion is provided so that an upstream side is lowered in a heat exchange air passage on an upstream side of drying air of the heat absorber, and a drain hole is provided on the upstream side of the inclined portion. An inclined portion so that the downstream side becomes lower disposed downstream heat exchange air path of the drying air of the radiator, according to claim 1 which arranged drainage holes on the downstream side of the inclined portion Laundry dryer.

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