JP2006109976A - Washing and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing and drying machine which is compact, low-vibration, low-noise and highly reliable. <P>SOLUTION: The washing and drying machine has a water tank 3 elastically supported in a housing 1, a rotary tub 5 rotatably provided in the water tank 3 and storing clothes, a heat pump cycle intended for drying clothes and composed of a heat absorber 21, a heat dissipator 23 and a compressor 26. The heat absorber 21 is installed in the same vibration system as the water tank 3. Since the installation of the heat absorber 21 in the same vibration system as the water tank 3 makes the machine compact, and helps reduce the length of an air duct, ventilation resistance is decreased and the volume of wind can be increased, and drying efficiency is improved. Furthermore, the installation of the heat absorber 21 on the top of the water tank 3 helps prevent bubbles and cleaning water from entering during washing, and the heat absorber 21 is reliable and durable, and dew condensate is drained well. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

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

  A conventional washing and drying machine of this type is generally configured as shown in FIG.

  Hereinafter, the configuration will be described. As shown in FIG. 10, a cylindrical water tank 3 that is 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 an object 4 to be washed or dried (hereinafter referred to as “clothing 4”) is rotatably disposed, and a rotating shaft 6 a is driven by a drive motor 6. Is rotated.

  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 hot air heated by the heater 13 into the rotary tank 5 from the air supply port 14. 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 is activated to rotate the rotary tank 5. Driven to perform cleaning operations. 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 / dehydrating operation is completed as described above, the drying operation is started. In the drying process, the rotary tank 5 is driven to rotate at a low speed by the drive motor 6 and the air heated by the heater 13 while stirring the clothes 4 becomes warm air, and is blown in the direction of arrow a by the blower 12, from the air supply port 14. It is fed 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, 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 washing / drying machine with a heat pump cycle configured by connecting a heat sink to be taken away by a pipe line so that the refrigerant circulates (see, for example, Patent Document 1).

According to this configuration, the clothes can be efficiently dried by causing the heat absorber to condense the water evaporated from the clothes.
Japanese Examined Patent Publication No. 6-75628

  However, the heat pump cycle mounted on the conventional washing and drying machine is connected to the compressor, the radiator, the throttling means, and the heat absorber, which are the main heat pump cycle components, as described above by a pipe line such as a copper pipe. Then, the high-pressure refrigerant is circulated, and there are methods such as installing the heat pump cycle parts as a single unit or a unit at the bottom of the housing 1.

  However, none of them are compact as a washing and drying machine, and there is a problem that vibration and noise increase because the center of gravity becomes high. Improvement of compactness, reduction of vibration, reduction of noise, and the like are indispensable. In addition, since the heat absorber and radiator installed in the air passage are installed below the water tank, the reliability and durability of refrigeration cycle components such as heat exchangers due to foam and washing water intrusion during washing There has been a problem of lowering.

  Moreover, in the treatment of the dew condensation water, it was necessary to raise the dew condensation water above the highest water surface of the water tank with a pump or the like to perform the waste water treatment.

  An object of the present invention is to solve the above-described conventional problems, and to provide a washing / drying machine having compactness, low vibration, low noise, reliability of heat exchanger, durability, and excellent drainage of condensed water. And

  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, and is used for drying clothes. It has a heat pump cycle having an exchanger, the heat exchanger is installed in the same vibration system as the water tank, and is excellent in compactness by installing a heat exchanger in the same vibration system as the water tank. Therefore, the ventilation resistance is reduced and the air volume can be increased, so that the drying efficiency is improved. In addition, if a heat exchanger is installed in the upper part of the water tank, it is possible to prevent intrusion of foam and washing water during washing, and the heat dryer has excellent reliability, durability and drainage of condensed water. Can be provided.

  The washing and drying machine of the present invention is compact, has low vibration and low noise, and is excellent in heat exchanger reliability, durability, and dew condensation water drainage.

  1st invention comprises the water tank elastically supported in the housing | casing, the rotation tank which is rotatably provided in the said water tank, and accommodates clothing, The heat pump cycle which has a heat exchanger for clothes drying, The exchanger is installed in the same vibration system as the water tank. By installing the heat exchanger in the same vibration system as the water tank, it is excellent in compactness, and the air passage can be made short, so the ventilation resistance is small. Thus, the air volume can be increased, so that the drying efficiency is improved. In addition, if a heat exchanger is installed in the upper part of the water tank, it is possible to prevent intrusion of foam and washing water during washing, and the heat dryer has excellent reliability, durability and drainage of condensed water. Can be provided.

  In the second invention, in particular, the heat exchanger of the first invention is provided on the outer periphery of the water tank, and a washing / drying machine having more compactness can be realized.

  In the third invention, in particular, the water tank of the second invention has a substantially cylindrical shape, and the heat exchanger is provided so as to be curved along the outer peripheral surface of the water tank. Therefore, it is possible to realize a washing / drying machine having further excellent compactness.

  In particular, the fourth invention is the one in which the heat exchanger of the first invention is provided on the back surface of the water tank, and the heat exchanger is installed on the back surface of the water tank, thereby realizing a washing and drying machine excellent in compactness. be able to.

  In particular, the fifth invention provides a blower for sending air to the heat exchanger according to any one of the first to fourth inventions, an air passage communicating with the blower and incorporating the heat exchanger, and the heat exchange. A drainage hole for draining the condensed water condensed in the heat exchanger is provided in the air channel, and the drainage hole is located in the upper part of the water tank. Since it is possible to naturally discharge condensed water to the outside of the casing without using it, it is possible to realize a washing and drying machine that is excellent in drainage of condensed water.

  The sixth invention, in particular, is provided with a compressor constituting the heat pump cycle according to any one of the first to fifth inventions, and the compressor is installed in the same vibration system as the water tank. Because it is installed in the same vibration system, the heat pump cycle configuration can be simplified, so it is excellent in compactness, and the weight of the aquarium increases and the position of the center of gravity decreases. Can do.

  In the seventh invention, in particular, the compressor is fixed to the lower central portion of the water tank of the sixth invention, and the amplitude of the water tank is suppressed by increasing the weight of the water tank and lowering the position of the center of gravity. Vibration can be reduced.

  In the eighth invention, in particular, a compressor is provided on the outer peripheral portion of the water tank of the sixth invention and a balancer for suppressing vibration of the water tank is provided. By optimizing the balance, the vibration amplitude of the aquarium can be suppressed, and noise and vibration can be reduced.

  The ninth aspect of the invention is, in particular, provided with a compressor constituting the heat pump cycle of any one of the first to fifth aspects of the invention, wherein the compressor is installed in the same vibration system as the casing, and the compressor is a water tank. Since the compressor is fixed to another vibration system, a washing / drying machine excellent in the reliability and durability of the compressor against vibration can be realized.

  In the tenth aspect of the invention, in particular, the compressor of the ninth aspect of the invention and the heat exchanger are connected by a connecting pipe capable of elastic deformation, and heat pump cycle components installed in different parts of the vibration system are connected. However, since the pipe is not broken, a washing / drying machine having excellent vibration durability can be realized.

  Hereinafter, embodiments of the present invention will be described 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 / drying machine according to the first embodiment of the present invention, FIG. 2 is a sectional view of the washing / drying machine 1 as viewed from the back 1c direction, and FIG. FIG. 4 is a system conceptual diagram showing the configuration of the heat pump cycle and the flow of the drying air of the washer / dryer.

  As shown in the figure, 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 is driven to rotate by a 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 9 for discharging washing water, and is connected to a drain valve 10 and a drain hose 11.

  The blower 12 constituting the blowing means is provided on the outer peripheral surface of the water tank 3 so as to be located in a corner space formed by the upper surface 1 d of the housing 1 and the water tank 3. The blower 12 communicates with the blower passage 20 provided on the back surface of the water tank 3, blows the air that has entered from the blower passage 20 in the direction of the arrow b, and supplies the air into the rotary tank 5 from the air supply port 14. Then, the air passing through the rotary tank 5 and coming out from the exhaust port 16 of the water tank 3 is sucked by the blower 12.

  On the rear surface of the water tank 3, a heat absorber air passage 22 for flowing air in the direction of an arrow e to a heat absorber 21 comprising a heat exchanger constituting a heat pump cycle, and an arrow f to a heat radiator 23 similarly comprising a heat exchanger. And the heat sink air passage 22 and the heat sink air passage 24 communicate with each other through a circulation duct 25 to connect the heat absorber 21 and the heat radiator 23 to each other. The passing air flows in a curved line. The heat absorber air passage 22, the radiator air passage 24, and the circulation duct 25 are integrally formed and fixed to the back surface of the water tank 3.

The drying air blown by the blower 12 passes through the blower passage 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 shown by the arrow b in FIG. Out of the exhaust port 16, passes through the heat absorber 21 of the heat sink air passage 22 through the blower 12, passes through the radiator 23 of the radiator air passage 24 through the circulation duct 25, and returns to the blower 12 to circulate. It is supposed to be.
In addition, the horizontal compressor 26, the radiator 23 for radiating the heat of the compressed refrigerant, the throttle means 27 including a throttle valve or a capillary for reducing the pressure of the high-pressure refrigerant, A heat absorber 21 that takes away heat from the surroundings is connected by a conduit 28 so that the refrigerant circulates, and the refrigerant flows and circulates in the direction of the arrow h to constitute a heat pump cycle.

  Main components constituting the heat pump cycle such as the compressor 26, the heat absorber 21, and the radiator 23 are installed on the outer peripheral surface of the water tank 3.

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

  In the washing process, water is supplied until the water level reaches a predetermined water level in the water tank 3 with the drain valve 10 closed, and washing is performed by rotating the clothes tank 4 and the rotary tank 5 containing the washing water by the drive motor 6. 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 26 of the heat pump cycle 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 heat radiation of the radiator 23 and the compressor 26 passes through the blower passage 20 and is blown into the rotary tank 5 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. This dry air enters the radiator air passage 24 through the circulation duct 25, is heated again by the radiator 23, becomes warm air, flows into the air passage 20, and circulates. Condensed water is discharged from a drain hole 32 provided in the heat sink air passage 22 through a drain pipe 33 communicating with the drain valve 10 and discharged from the drain hose 11 to the outside of the apparatus.

  The compressor 26 and the balancer 29 are equally installed in the both ends of the lower part of the water tank 3, and the low vibration and noise reduction of the washing-dryer main body at the time of spin-drying | dehydration are mainly implement | achieved.

  By using the heat pump cycle in this way, the heat absorbed by the heat absorber 21 can be recovered by the refrigerant and radiated again by the radiator 23 to give the clothing 4 more heat than the energy input to the compressor 26. Moreover, since the air path can be made short, the ventilation resistance is small and the air volume can be increased, so that the drying efficiency can be improved, and the drying time can be shortened and energy saving can be realized.

  Further, since the heat absorber 21, the radiator 23, and the compressor 26, which are main components constituting the heat pump cycle, are installed directly on the outer peripheral surface of the water tank 3, that is, in the same vibration system, the height of the entire washing and drying machine. Is suppressed, and it is excellent in compactness. Further, since the center of gravity can be kept low, a washing and drying machine with low vibration and low noise can be realized.

  Moreover, since the air blower 12 and the heat absorber 21 and the heat radiator 23 which are heat exchangers are installed in the upper part of the water tank 3, it is possible to prevent bubbles and washing water from entering during washing, and a heat pump such as a heat exchanger. High reliability of cycle parts can be ensured. Moreover, since the drainage of condensed water can be discharged out of the machine only by gravity without using a pump or the like, it is possible to realize a washing and drying machine with excellent drainage of condensed water.

  Further, since the air path can be made shorter, the ventilation resistance is reduced and the air volume is increased, so that the drying efficiency is improved.

  In this embodiment, the fin tube type is laid back and forth as the heat exchanger method and layout, but a parallel flow, serpentine, or drone cup type may be used as the heat exchanger method.

  Moreover, in this Embodiment, although it has the opening part 1a which puts in / out the clothing 4 in the surface opposite to the surface of the water tank 3 which has the drive motor 6 of the rotation tank 5, it is not limited to the said place, The water tank 3 and rotation Any position of the tank 5 may be set.

  Further, the refrigerant used in the heat pump cycle is not limited to the chlorofluorocarbon system, and natural refrigerants such as carbon dioxide, isobutane, and propane may be used.

  In this embodiment, the horizontal compressor 26 is used, but a vertical compressor may be used.

(Embodiment 2)
FIG. 5 shows a washing / drying machine according to the second embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, as shown in FIG. 5, the heat absorber 21 and the radiator 23 are provided to be curved along the cylindrical outer peripheral surface of the water tank 3, and the heat absorber 21, the radiator 23, and the water tank 3 are provided. Therefore, it is possible to provide a compact, low-vibration, low-noise washing and drying machine.

(Embodiment 3)
FIG. 6 is a cross-sectional view of a main part of the washing / drying machine according to the third embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, as shown in FIG. 6, a horizontal compressor 26 is fixed to the lower center portion of the water tank 3, and by installing the horizontal compressor 26 in the same vibration system as the water tank 3, The center of gravity of the dryer is positioned vertically above the center of the washer / dryer and can be kept low, so that a washer / dryer that is compact and excellent in low vibration and noise can be realized.

  Moreover, as shown in FIG. 7, the vertical compressor 30 may be fixed to the lower center part of the water tank 3, and the same effect can be acquired.

(Embodiment 4)
FIG. 8: is principal part sectional drawing of the washing-drying machine in the 4th Embodiment of this invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, as shown in FIG. 8, the horizontal compressor 26 is installed in the same vibration system as the casing 1, specifically, at the lower corner of the casing 1, and exchanges heat with the compressor 26. The connection pipe 31 for conveying the refrigerant that connects the heat absorber 21 and the heat radiator 23, which is a heat sink, is formed of a material that can be elastically deformed. As shown in the figure, the compressor 26 and the heat exchanger are connected to the vibration system. Even when installed in different places, the connection pipe 31 is not broken, so that the reliability can be improved. Note that a rubber hose, a flexible tube, or the like is practical as the connection pipe 31.

  Further, as shown in FIG. 9, a horizontal compressor 26 may be fixed to the housing 1 in the lower center portion of the water tank 3, and the center of gravity of the washing / drying machine is kept low vertically above the center of the washing / drying machine. Therefore, it is possible to realize a washing and drying machine that is compact and excellent in low vibration and low noise.

  As described above, the washing / drying machine according to the present invention is compact, has low vibration, low noise, and is excellent in reliability and durability of the heat exchanger, and is excellent in drainage of condensed water. It is useful for a washing dryer that performs dehumidification.

1 is an external perspective view of a washing / drying machine according to Embodiment 1 of the present invention. Cross section of the main part of the washing and drying machine Cross section of the main part of the washing and drying machine System conceptual diagram showing the configuration of the heat pump cycle of the washer / dryer Sectional drawing of the principal part of the washing-drying machine in Embodiment 2 of this invention Sectional drawing of the principal part of the washing-drying machine in Embodiment 3 of this invention Cross-sectional view of the main part of a washing and drying machine showing another example Sectional drawing of the principal part of the washing-drying machine in Embodiment 4 of this invention Cross-sectional view of the main part of a washing and drying machine showing another example Cross-sectional view of a conventional washing and drying machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing | casing 3 Water tank 5 Rotating tank 6 Drive motor 12 Blower 14 Air supply port 20 Air supply path 21 Heat absorber (heat exchanger)
22 heat sink air passage 23 heat sink (heat exchanger)
24 Radiator air passage 26, 30 Compressor 29 Balancer 31 Connection pipe 32 Drain hole

Claims (10)

A water tank elastically supported in a housing; a rotary tank that is rotatably provided in the water tank and contains clothes; and a heat pump cycle for drying clothes and having a heat exchanger, the heat exchanger being connected to the water tank A washing dryer installed in the same vibration system. The washing and drying machine according to claim 1, wherein a heat exchanger is provided on the outer periphery of the water tank. The washing / drying machine according to claim 2, wherein the water tank has a substantially cylindrical shape, and the heat exchanger is curved along the outer peripheral surface of the water tank. The washing and drying machine according to claim 1, wherein a heat exchanger is provided on the back surface of the water tank. A blower that sends air to the heat exchanger, and an air passage that communicates with the blower and incorporates the heat exchanger is provided, and the heat exchanger is disposed in an upper part of the water tank, and the heat exchanger is provided with the heat exchanger. The washing / drying machine according to any one of claims 1 to 4, wherein a drainage hole for draining condensed condensed water is provided. The laundry dryer according to any one of claims 1 to 5, wherein a compressor constituting a heat pump cycle is provided, and the compressor is installed in the same vibration system as the water tank. The washing / drying machine according to claim 6, wherein a compressor is fixed to a lower central portion of the water tank. The washing / drying machine according to claim 6, wherein a compressor is provided on an outer periphery of the water tank and a balancer for suppressing vibration of the water tank is provided. The washing and drying machine according to any one of claims 1 to 5, wherein a compressor constituting a heat pump cycle is provided, and the compressor is installed in the same vibration system as the casing. The washing and drying machine according to claim 9, wherein the compressor and the heat exchanger are connected by a connecting pipe capable of elastic deformation.

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