JP4352803B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washing / drying machine for washing and drying clothes in the same tank.

  Conventionally, as a device for washing and drying clothes, there are a device using a heater as a heat source and a device using a heat pump device as a heat source (see, for example, Patent Document 1). FIG. 8 is a side sectional view of the washing / drying machine described in the publication.

In FIG. 8, the washing and drying machine 1 has a casing 2, and a door 12 for attaching and removing clothes 6 is attached to the center of the casing 2, and a rotating drum 3 is accommodated therein. A predetermined portion of the rotating drum 3 has a beater 5 for lifting and dropping the clothes 6 along with the rotation of the rotating drum 3, and a punching hole 4 through which washing water 7 and circulating air 9 for drying enter and exit. . The shaft 11 of the rotating drum 3 receives power for rotation from a driving motor (not shown).

  Further, the back surface of the rotating drum 3 in the casing 2 is partitioned by a partition wall 22 except for the air inlet 24 and the air outlet 23, and ducts 10 and 13 through which the circulating air 9 passes are formed. The lower part of the front surface of the partition wall 22 constitutes a washing tub 14, and the lower part of the rotating drum 3 faces the portion of the washing tub 14.

  Each of the air ducts 10 and 13 incorporates a compressor 19, a condenser (condenser) 18, a fan 17, an expansion valve 20, an evaporator (evaporator) 15 and the like, and a so-called heat pump cycle is formed. Further, a part of the capacitor 18 is extended to the outer back surface of the casing to form a radiator 16. 21 is a drain drain pipe, and 8 is a washing drain pipe.

  Next, each process and operation will be described. In the washing and rinsing process, the door 12 is opened, the garment 6 and an appropriate amount of detergent are put in, the door 12 is closed, and the following processes are executed.

  A prescribed amount of water 7 is supplied from a water supply valve (not shown) to the washing tub 14 up to the position of the water level A. The rotating drum 3 rotates continuously or intermittently at the programmed number of rotations to perform cleaning. During this time, the garment 6 is lifted and dropped by the beater 5. After washing is completed, the water is drained out of the machine from the washing drain pipe 8 of the washing tub 14. Subsequently, the rinsing process is performed in the same process. Rinsing water is also drained out of the machine from the washing drain pipe 8 as washing drain.

  In the dehydration step, the rotating drum 3 rotates at a programmed number of rotations to dehydrate moisture in the clothing 6. The dewatered water is drained out of the machine from the washing drain pipe 8 as washing drain.

In the drying process, the compressor 19, the fan 17 and the rotating drum 3 are operated, and the circulating air 9 circulates inside the ducts 10 and 13 and the rotating drum 3. The water vapor evaporated from the clothing 6 is brought into contact with the evaporator 15 through the air outlet 23 and the duct 10 together with the circulating air 9, and is cooled to be condensed and condensed (condensed water). The dehumidified circulating air 9 is sent to the condenser 18 by the fan 17, heated there to become hot air, flows into the rotary drum 3 through the duct 13 and the air inlet 24, and evaporates moisture from the clothing 6 again. . The dehumidified condensed water is drained out of the machine through the drain drain pipe 21. During this time, the rotating drum 3 rotates continuously or intermittently at a preset number of rotations as in the washing process.
Japanese Unexamined Patent Publication No. 1-332893

  However, in the conventional configuration, the drain drain pipe 21 and the washing drain pipe 8 separately lead the drain to the outside of the machine. In the washing machine, there is one drainage hose corresponding to the drainage pipe, and when a washing / drying machine is installed at the place where the washing machine is installed, the drainage treatment can be performed with one drainage hose as in the past. It is desirable in terms of installation work, installation members such as a waterproof floor, and piping equipment under the floor.

  If the drain drain pipe 21 and the laundry drain pipe 8 are directly connected in the machine, the level of water stored in the washing tub 14 during washing is high, and the drain drain pipe 21 from the laundry drain pipe 8 due to water pressure during washing drainage. When washing water and rinsing water flow into the water and the installation position of each means such as the evaporator 15, the fan 17 and the condenser 18 for performing dehumidification and heating is lower than the stored water level of the washing water as well as the piping. However, there is a problem that there is a risk of getting wet with washing water in which detergent or bleach is dissolved.

  In order to prevent this, in addition to the drainage valve provided in the washing drainage pipe 8, a check valve for preventing a backflow to the drainage drainage pipe 21 or a drainage valve for the drainage drainage pipe 21 is used. There has been a problem that a separate backflow prevention means is required.

  The present invention solves the above-described conventional problems, and aims to realize a wastewater treatment means that can prevent backflow to the drain drainage pipe 21 and drain the water outside the machine with a single drainage pipe. is there.

  In order to achieve the above-mentioned object, the present invention flows the dew condensation water collected by an overflow outlet for discharging washing water exceeding a predetermined amount from the washing tub and dehumidifying means for collecting moisture from the drying air as dew condensation water. A condensation drainage channel, a part of the condensation drainage channel is disposed higher than the overflow port, the condensation drainage channel is connected to a drainage pipe downstream of the drainage valve, and the drainage is performed when washing water is drained. The valve is opened and the drain valve is closed during drying.

  As a result, even if the water pressure due to the water level immediately after the start of washing water drainage is applied to the condensation drainage channel and the water level in the condensation drainage channel rises, the water level of the washing water rises due to abnormalities in the water supply valve, water level sensor, etc However, the water level does not rise higher than the overflow outlet, and a part of the condensation drainage channel is located higher than the overflow outlet. There is no backflow. Accordingly, both the washing water and the dew condensation water can be drained out of the machine with one drain pipe.

  In addition, by connecting the condensation drainage channel to a drain pipe downstream from the drainage valve, the drainage valve is opened when washing water is drained, and the drainage valve is closed when drying, so that dew condensation water is ensured especially during drying. Can drain from drain pipe.

  As described above, according to the first aspect of the present invention, even when the water pressure due to the water level immediately after the start of drainage of the washing water is applied to the condensation drainage channel and the water level in the condensation drainage channel rises, Even if the wash water level rises due to an abnormality such as a valve or water level sensor, the water level does not rise above the overflow port. Since it is disposed at a high level, the washing water does not flow back to each means such as the dehumidifying means. Therefore, it is possible to realize a simple wastewater treatment that can be drained outside the apparatus with a single drainage pipe.

The invention according to claim 1 is a washing tub that fills with washing water, an overflow outlet that discharges washing water that exceeds a predetermined amount from the washing tub, a drain pipe that flows the washing water in the washing tub, and a drying tub A dehumidifying means for collecting moisture from the air as condensed water, a dewatering drainage channel for passing the condensed water collected by the dehumidifying unit, a drainage pump for sending the condensed water to the drainage pipe through the condensation drainage channel, and the inside of the washing tub A drain valve for draining the washing water outside the machine through the drain pipe, and a control means for controlling the drain valve and the drain pump, and a part of the condensation drainage channel is disposed higher than the overflow port In addition, the condensation drainage channel is connected to a drain pipe downstream from the drain valve, the drain valve is opened when washing water is drained, and the drain valve is closed when drying. Water pressure due to the water level immediately after the start of drainage is added to the condensation drainage channel, Even if the water level in the drainage channel rises, or even if the washing water level rises due to an abnormality such as a water supply valve or a water level sensor, the water level does not rise above the overflow outlet, and one of the condensation drainage channels Since the portion is disposed higher than the overflow port, the washing water does not flow back to each means such as the dehumidifying means. Accordingly, both the washing water and the dew condensation water can be drained out of the machine with one drain pipe.

  In addition, by connecting the condensation drainage channel to a drain pipe downstream from the drainage valve, the drainage valve is opened when washing water is drained, and the drainage valve is closed when drying, so that dew condensation water is ensured especially during drying. Can drain from drain pipe.

  Embodiments of the present invention will be described below with reference to the drawings.

(Example 1)
1 is a partially cutaway perspective view of a washing / drying machine according to a first embodiment of the present invention as viewed from the back, and FIG. 2 is a side sectional view. In FIG. 1, there is a washing tub 26 in a washing and drying machine main body 25 of the present invention, and a motor 27 is attached. The washing tub 26 is attached to the main body 25 while being supported by suspensions 29 on both sides and an upper suspension 30.

  35 is a compressor, 36 is a radiator that dissipates the heat of the high-temperature and high-pressure refrigerant after compression, 37 is an expansion valve for reducing the pressure of the high-pressure refrigerant, or throttling means comprising a capillary tube, and 38 is depressurized. The low pressure refrigerant is a heat absorber that draws heat from the surroundings, and is connected to the compressor 35, the radiator 36, the throttle means 37, and the heat absorber 38 in this order so that the refrigerant circulates again through the compressor 35. The heat pump device connected at 39 is provided.

  Reference numeral 40 denotes an air passage through which drying air flows, and is configured to connect the heat absorber 38 for cooling the drying air and the radiator 36 as a heating means for heating the drying air. The washing tub 26 and the air passage 40 are connected by flexible hoses 41 and 42. The air passage 40 is provided with air blowing means 43.

  The heat pump device, the air blowing means 43 and the air passage 40 are included to constitute a dehumidifying means for dehumidifying the drying air. Reference numeral 44 denotes a duct provided on the outer wall of the washing tub 26. An arrow B indicates the flow of drying air in the duct 44 and the air passage 40.

  In FIG. 2, reference numeral 28 denotes a rotating drum that is directly connected to the shaft of the motor 27 and attached in the washing tub 26. A door 32 for loading clothes 31 is provided at a position corresponding to the front opening of the washing tub 26 and the rotary drum 28. A gap between the main body 25 and the washing tub 26 is substantially sealed by a bellows 33 and a door packing 34 so that air does not leak into the main body 25 or outside the machine. A hole 45 and an opening 46 through which washing water and drying air enter and exit are provided on the side wall and the bottom of the rotating drum 28. An opening 56 is provided in the inner wall of the washing tub 26 and connects the air passage between the washing tub 26 and the duct 44. An arrow C indicates the flow of drying air in the washing tub 26 and the rotary drum 28.

  Reference numeral 47 denotes a washing drainage channel for draining wastewater during washing, and the washing drainage channel 47 has a drain valve 60. Reference numeral 48 denotes a condensation drainage channel through which the condensed water generated by the heat absorber 38 flows when drying. 51 is a drainage pump that sends the condensed water to the condensation drainage channel 48. ing. The tip 50 of the drain pipe 49 is open to the atmosphere outside the machine. Control means 52 (not shown) for controlling the drain valve 60 and the drain pump 51 is provided. 53 is an overflow port provided in the washing tub 26, and the tip of the overflow port is connected to a drain pipe 49 downstream of the drain valve. A part of the condensation drainage channel 48 is arranged to be raised to a position higher than the overflow port 53.

  The operation and action of the washing / drying machine configured as described above will be described below. In the washing process from washing to rinsing and dehydration, when water is stored, the drain valve 60 is closed and water is supplied from the water supply valve (not shown) to the washing tub 26, and the position of the water level D in FIG. A predetermined amount of water is accumulated. Even if water is supplied above this level, the washing tub 26 is provided with an overflow port 53, and water exceeding a predetermined amount overflows and flows from the overflow port 53 to the drain pipe 49 and is drained.

  When the rotating drum 28 rotates continuously or intermittently at a programmed number of rotations, cleaning and rinsing are performed. During this time, the clothes 31 are lifted and dropped by the rotation of the rotary drum 28. When draining, the drain valve 60 is opened. The water in the washing tub 26 passes through the washing drain channel 47 and the drain valve 60 and is drained out of the machine from the drain pipe 49.

  In the drying process, the drain valve 60 is closed, and the compressor 35, the air blowing means 43, and the rotary drum 28 are operated. By the operation of the blowing means 43, the drying air circulates inside the washing tub 26 and the duct 44, the flexible hose 41, the air path 40, and the flexible hose 42. The clothes 31 are agitated by the rotation of the rotating drum 28 continuously or intermittently performed at a preset number of rotations.

  By the operation of the compressor 35, the refrigerant circulates in the pipe 39, and the heat of the high-temperature and high-pressure refrigerant is radiated by the radiator 36 to heat the circulating drying air. The heated drying air is sent into the washing tub 26 as shown by an arrow C in FIG. 2, passes through the opening 46 in the bottom of the rotating drum 28 and hits the clothing 31, deprives the clothing 31 of moisture, and is humid. The air passes through the hole 45 on the side wall of the rotary drum 28, passes through the opening 56 of the washing tub 26, and is sent to the duct 44.

The drying air that has passed through the duct 44 passes through the flexible hose 41 and is dehumidified by a heat absorber 38 as a dehumidifying means provided in the air passage 40 as indicated by an arrow B. The dehumidified drying air is sent again to the radiator 36 by the blowing means 43 and heated. Dew condensation water generated in the heat absorber 38 is discharged from the discharge pipe 49 passes through the condensing Non waterway 4 8 outside the apparatus.

  A part of the condensation drainage channel 48 is disposed higher than the overflow port 53 provided in the washing tub 26, and the water pressure due to the water level immediately after the start of drainage of the washing water is applied to the condensation drainage channel 48, and the condensation drainage channel 48. Even if the water level in the water rises, or even if the water level of the washing water rises due to an abnormality such as a water supply valve or a water level sensor, the water level does not rise above the overflow port 53, and the condensation drainage channel 48 Since the portion is arranged higher than the overflow port 53, the washing water does not flow back to each means such as the dehumidifying means. Accordingly, both the washing water and the dew condensation water can be drained out of the machine with one drain pipe 49.

  In addition, although the heat exchanger of the heat radiator 36 and the heat absorber 38 shown in a present Example has shown the tube type heat exchanger with a plate fin, the form is not specifically limited.

(Example 2)
FIG. 3 is a side sectional view of the washing / drying machine according to the second embodiment of the present invention. In addition, the same structure as the said Example 1 attaches | subjects the same code | symbol, and abbreviate | omits detailed description.

  In FIG. 3, the water outlet 55 of the condensation drainage channel 54 is connected to the washing tub 26 at a position higher than the overflow outlet 53 provided in the washing tub 26. Since the water level does not rise above the mouth 53 and the water outlet 55 of the condensation drainage channel 54 is disposed higher than the water overflow port 53, the washing water flows back to each means such as a dehumidifying means over the above. There is nothing to do. Accordingly, both the washing water and the dew condensation water can be drained out of the machine with one drain pipe 49.

  If the condensation drainage channel 54 is connected near the overflow port 53, the length of the condensation drainage channel 54 can be made shorter than the condensation drainage channel 48 of the first embodiment. Furthermore, since the cooled dew condensation water is caused to flow into the washing tub 26 and contact with the drying air after passing through the clothing 31, the drying air can be pre-cooled with the dew condensation water before cooling with the heat absorber 38. it can.

(Example 3)
FIG. 4 is a side sectional view of the washing / drying machine according to the third embodiment of the present invention. The same components as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 4, 61 is a drain receiver that temporarily stores condensed water, and a drain pump 51 sends the condensed water from the drain receiver 61 to the condensed drainage channel 48. The drain receiver 61 has a capacity that is sufficiently larger than the amount of water in which the condensed water remaining in the condensation drainage channel after the drainage pump has been operated, and the water pressure due to the water level immediately after the start of drainage of the washing water is the condensation drainage channel. Even if the water level in the condensate drainage channel 48 rises in addition to 48, or the wash water level rises due to an abnormality such as a water supply valve or a water level sensor, the water level may rise above the overflow port 53. In addition, since a part of the condensation drainage channel 48 is disposed at a higher position than the overflow port 53, the washing water does not flow back to each means such as the dehumidifying means.

  In addition, because vane pumps, etc., have a structure in which the pump chamber is closed, residual water such as high-level piping does not flow back when the pump is stopped, but centrifugal pumps, etc., are open when the pump is stopped. It is conceivable that the residual water from the piping at a higher level will flow backward. Also in this case, since the capacity of the drain receptacle 61 is large, the dew condensation water remaining in the condensation drainage channel 48 does not collect in the drain receptacle 61 and flows back to each means such as the dehumidifying means. Accordingly, both the washing water and the dew condensation water can be drained out of the machine with one drain pipe.

(Example 4)
FIG. 5 is a sectional side view of the washing / drying machine of Example 4 of the present invention. In addition, the thing of the same structure as the said Examples 1-3 attaches | subjects the same code | symbol, and abbreviate | omits detailed description.

  The heat pump device as the dehumidifying means, the air blowing means 43, the air passage 40, and the like are disposed higher than the overflow port 53 provided in the washing tub 26. The condensation drainage channel 48 is connected to a drainage pipe 49.

  According to the configuration described above, even if the water level of the washing water rises, the water level does not rise above the overflow port 53, and each means such as a dehumidifying means is disposed higher than the overflow port 53. Therefore, the washing water does not flow back to the dehumidifying means. Accordingly, both the washing water and the dew condensation water can be drained out of the machine with one drain pipe 49.

  The condensation drainage channel 48 may be connected to the washing tub 26 as shown in FIG. 6 in addition to being connected to the drainage pipe 49, and it is only necessary to form a waterway in the direction in which the condensation water flows by natural fall. Is not particularly limited.

  The same applies to a washer-dryer using a heater as a heat source instead of the heat source of the heat pump apparatus according to the embodiment of the present invention. FIG. 7 is a partially cutaway perspective view of a heater-type washing / drying machine as viewed from the back. In FIG. 7, 57 is a heater that heats the drying air, and 58 is a heat exchanger that cools and dehumidifies the drying air that has become wet due to moisture from the garment 31 with lower outside air. The heat exchanger 58 is an orthogonal plate fin type heat exchanger, and the air of the outside air is blown by the air-cooling blowing means 59 so as to be orthogonal to the drying air. An arrow E indicates the flow of the cooling external air blown by the air cooling blowing means 59.

  According to the above configuration, the drying air after passing through the clothes is cooled and dehumidified with air, and the condensed water generated in the heat exchanger 58 passes through the condensed drainage channel 48 and the drainage valve 60 from the drainage pipe 49. It is discharged outside the machine.

The heat exchanger 58 is the same as a tube-type heat exchanger with a prefin, and the form of the heat exchanger is not particularly limited.

1 is a partially cutaway perspective view of a washing and drying machine according to a first embodiment of the present invention. Side sectional view of the washer / dryer Side sectional view of the washing and drying machine of Example 2 of the present invention. Side sectional view of the washing and drying machine of Example 3 of the present invention Side sectional view of the washing and drying machine of Example 4 of the present invention Side sectional view of another example of the washing and drying machine of Embodiment 4 of the present invention Partially cutaway perspective view using a heater as the heat source of the washing and drying machine of the present invention Side view of a conventional washer-dryer

38 Heat Absorber 47 Washing Drainage Channel 48, 54 Condensation Drainage Channel 49 Drainage Pipe 51 Drainage Pump 52 Control Unit 53 Overflow Port 55 Water Discharge Port 58 Heat Exchanger 59 Air Cooling Blower Unit 60 Drainage Valve 61 Drain Receiver 61

Claims (1)

Recover moisture from the washing tub that fills the washing water, an overflow outlet that discharges the washing water from the washing tub exceeding a predetermined amount, a drain pipe that flows the washing water in the washing tub, and the drying air. A dehumidifying means, a condensation drainage channel for passing the condensed water collected by the dehumidifying unit, a drainage pump for sending the condensed water to the drainage pipe through the condensation drainage channel , and a washing water in the washing tub through the drainage pipe. A drain valve for draining to the outside, and a control means for controlling the drain valve and the drain pump, and a part of the dew drainage channel is disposed higher than the overflow port, and the dew drain channel is A laundry dryer connected to a drain pipe downstream of the drain valve, wherein the drain valve is opened when draining the washing water, and the drain valve is closed when drying.

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