JP2005287613A - Washing and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a compressor arranged in a lower space in a case from being exposed to washing water. <P>SOLUTION: In a washing and drying machine having the compressor 41 composing a heat pump device, an installing base 45 is provided to install the compressor 41 in a lower part of the case 1. A circumferential edge part 46 is formed on the installing base 45 so as to project upward for surrounding the circumference of the compressor 41. The height of the circumferential edge part 46 is formed higher than the bottom of the compressor 41. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

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

  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, and the suspension 2 absorbs vibration during washing and dehydration. 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, 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. In order to make mounting possible, it is necessary to effectively utilize the empty space in the housing to accommodate these components. I must. Due to the structure of the washing / drying machine, it is convenient to arrange the components of the heat pump device in the lower part of the housing where an empty space is likely to be created. In consideration of the stability of the main body of the washing / drying machine, it is more convenient to place a heavy object such as a compressor in the lower part of the housing as much as possible. However, in the washing / drying machine, there is a possibility that the washing water overflows outside the outer tub due to water supply abnormality in the washing process and is stored in a waterproof pan or the like where the machine body is installed. If the compressor that is an electrical component is disposed in the lower part of the housing, the compressor may get wet with the leaked water when such a situation occurs.

  In order to solve the above-described conventional problems, the washing and drying machine of the present invention forms a peripheral edge portion that protrudes upward so as to surround the periphery of the compressor on the installation base where the compressor is installed in the lower part of the casing. And the height of the said peripheral part is comprised so that it may become higher than the bottom face of the said compressor.

  Thereby, even if the washing water overflowing from the outer tub is stored in a waterproof pan or the like, the compressor does not get wet with the washing water, and the compressor can be disposed in the lower space in the housing.

  The washing / drying machine of the present invention can be disposed in the lower space in the housing without the compressor getting wet with washing water, and can be accommodated in a compact manner by effectively utilizing the empty space in the housing. .

  The first invention includes an outer tub supported in a housing, an inner tub rotatably supported in the outer tub, a heat radiator that radiates heat from the compressor and the compressed refrigerant, and the pressure of the high-pressure refrigerant. A heat pump device connected by a pipe line so that the refrigerant circulates through a squeezing means for depressurization and a heat absorber from which the depressurized refrigerant takes heat from the surroundings, and the outside after the drying air flows from the heat absorber to the radiator A blower that guides the inside of the tank and an installation base for installing the compressor in a lower part of the housing; and the installation base has a peripheral portion that protrudes upward so as to surround the compressor. By configuring the peripheral edge so as to be higher than the bottom surface of the compressor, the washing water overflows outside the outer tub due to water supply abnormality in the washing process and the water is stored in the waterproof pan. Even in the case of water, prevent water from entering at the periphery of the installation base. Since it, without compressor is wetted by the washing water can be disposed in the lower space in the housing.

  In the second invention, in particular, the compressor according to the first invention is configured to cover the upper part with an upper lid, so that the washing water overflowing out of the outer tub due to abnormal water supply in the washing process is compressed by the compressor. Even when splashed from above, the upper lid can prevent the compressor from getting wet with washing water.

  In particular, the third aspect of the invention is such that the compressor of the second aspect of the invention is surrounded by the installation base and the upper lid, so that the compressor can be disposed in the lower space inside the casing, It is possible to prevent the washing water overflowing from the tank from getting wet.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Components having the same configurations as those of the conventional example are denoted by the same reference numerals and detailed description thereof is omitted. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a rear 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 top view of a compressor of the washing / drying machine, FIG. These are the system conceptual diagrams which show the structure of the heat pump apparatus of the said washing dryer, and the flow of the air for drying.

  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, in the housing 1, the outer tub 3 and the inner tub 5 are provided such that the back surface is lowered from the front surface, and the rotation axis direction of the inner tub 5 is inclined 20 to 30 degrees from the horizontal direction.

  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.

  The blower 12 constituting the blower means is provided above the housing 1 as shown in FIG. The blower 12 sucks air that has passed through the inner tub 5 and the outer tub 3 from an exhaust port 16 provided above the outer tub 3, and blows air in the exhaust duct 22 provided on the back surface of the outer tub 3, As shown in d, the exhaust duct is led out from the exhaust duct inlet 24 to the exhaust duct outlet 23. Further, an air supply duct 20 is provided on the outer surface of the outer tub 3, and drying air that has entered from the air supply duct inlet 21 is blown in the direction of the arrow c, and the inside of the outer tub 3 and the inner tub 5 is supplied from the air supply port 14. To supply.

  In the lower part of the back surface of the outer tub 3, a heat absorber 30 and a radiator 32 made of a plate-shaped heat exchanger constituting the heat pump device are in the front-rear direction with respect to the housing 1 and in substantially the same direction as the back surface of the outer tub 3. In the inclined direction, the thickness direction is overlapped and arranged in parallel, and the empty space in the housing 1 is effectively utilized and accommodated. The heat exchange air passage 31 is for flowing the air blown by the blower 12 in the direction of arrow a from the heat absorber 30 to the heat radiator 32, and the inlet side thereof communicates with the exhaust duct outlet 23, and the outlet side Is in communication with the inlet duct 21.

  As shown by an arrow 40 in FIG. 4, the drying air blown by the blower 12 passes through the exhaust duct 22, passes through the heat absorber 30 and the radiator 32 in the heat exchange air passage 31, and then the air supply duct 20. Through the air supply port 14, enters the outer tub 3 and the inner tub 5, passes through the clothing 4 in the inner tub 5, returns to the blower 12 through the exhaust port 16, and circulates. Yes.

  As shown in FIG. 1, near the bottom surface of the casing 1, which is the lower back of the outer tub 3, a compressor 41 constituting a heat pump device is arranged side by side with a heat exchange air passage 31 in the left-right direction with respect to the casing 1. It is accommodated by making effective use of the empty space in the housing 1. The installation table 45 is for mounting the compressor 41, and the height of the peripheral edge 46 is higher than the bottom surface of the compressor 41 and is configured to surround the lower portion 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 edge 46.

  The air supply duct 20 and the air supply duct inlet 21 communicate with each other via an air supply hose 33 made of a bellows-like stretchable and flexible material, and the exhaust port 16 and the exhaust duct inlet 24 are similarly provided with a bellows shape. It communicates via an exhaust hose 34 made of a flexible material that can be expanded and contracted to prevent the vibration of the outer tub 3 from being transmitted to the heat pump device. 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) to the outside of 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. 4 to realize a heat pump cycle. To do.

  The control means 48 controls the washing, dehydration 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 wash water overflows outside the outer tub 3 and the water is stored in the waterproof pan 25. Even in such a case, the peripheral edge 46 of the installation table 45 on which the compressor 41 is placed prevents the water from entering the installation table 45, so that the compressor 41 is immersed in water and breaks down. There is nothing.

  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. At this time, even if water is stored in the waterproof pan 25, the compressor 41 is not immersed in water. 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 in the moist state, passes through the lint filter 35. 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, since the compressor 41 is disposed on the installation table 45 configured such that the height of the peripheral edge 46 is higher than the bottom surface of the compressor 41 at the lower part in the housing 1, the washing process Even if the water supply is abnormal, the washing water overflows to the outside of the outer tub, and the compressor is not immersed in the water even if it accumulates in the waterproof pan. Moreover, since the height of the peripheral part 46 is made higher than the waterproof pan surrounding wall 26, even if there is much quantity of the overflowed water, it will flow out of a waterproof pan and a compressor will not be immersed in 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. 5 shows a rear view 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, and detailed description thereof is omitted.

  Near the bottom surface of the casing 1, which is the lower back of the outer tub 3, a compressor 41 constituting a heat pump device is arranged side by side with the heat exchange air passage 31 in the left-right direction with respect to the casing 1. Of free space is effectively utilized. An upper lid 47 configured to surround the upper portion of the compressor 41 is provided above the compressor 41 installed on the installation table 45.

  According to this configuration, in the washing process, some water supply abnormality such as breakage of the water supply path, water supply above a predetermined water level, etc. occurs, the washing water overflows out of the outer tub 3 and is sprinkled from above the compressor 41. Even if it comes, the top lid 47 prevents water from splashing from above the compressor 41 and entering the installation table 45, so that the compressor 41 will not get wet or be immersed in water and prevent failure. Can do.

(Embodiment 3)
FIG. 6 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 second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 6, the peripheral portions of the installation base 45 configured to enclose the lower portion of the compressor 41 and the upper lid 47 configured to cover the upper part come into contact with each other to surround the compressor 41. The compressor 41 is accommodated in the compressor chamber 48 formed by the above. By inserting a seal member (not shown) such as packing between the contact surfaces of the installation table 45 and the upper lid 47, the compressor chamber 48 can be made into a completely watertight structure.

  According to this configuration, in the washing process, even if some water supply abnormality such as breakage of the water supply path or water supply above a predetermined water level occurs and the washing water overflows outside the outer tub 3, the water remains in the compressor chamber 48. Since it does not enter the compressor 41, the compressor 41 is not wetted or soaked in water, and failure can be prevented.

  As described above, the washer / dryer according to the present invention can be disposed in the lower space in the casing without the compressor getting wet with the washing water, and is compact by effectively utilizing the empty space in the casing. It is useful for a washing and drying machine provided with a heat pump device.

The rear view of the washing-drying machine of Embodiment 1 of this invention Cross section of the washer / dryer Top view of the compressor of the washer / dryer System concept of the washer / dryer The rear view 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 (storage container)
32 Radiator 41 Compressor 42 Throttle means 43 Pipe line 45 Installation base 46 Peripheral part 47 Upper lid 48 Compressor chamber

Claims (3)

An outer tub supported in the housing; an inner tub rotatably supported in the outer tub; a radiator that radiates heat from the compressor and the compressed refrigerant; a throttling means that depressurizes the high-pressure refrigerant; A heat pump device that is connected by a pipe line so that the refrigerant circulates through a heat absorber that takes heat away from the surroundings, and air that guides drying air from the heat absorber to the radiator and then into the outer tub Means and an installation base for installing the compressor in the lower part of the housing, the installation base having a peripheral edge protruding upward so as to surround the periphery of the compressor, and a height of the peripheral edge A washing and drying machine configured to be higher than the bottom surface of the compressor. The washing / drying machine according to claim 1, wherein the compressor is configured to cover an upper portion thereof with an upper lid. The washing / drying machine according to claim 2, wherein the compressor is surrounded by an installation table and an upper lid.

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