JP4594221B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a drum-type washing / drying machine equipped with a heat pump device, and relates to an improvement in drying efficiency.

  A washing / drying machine equipped with a heat pump device is described in Japanese Patent Application Laid-Open No. 64-32893 (Patent Document 1). The heat pump device of the washing and drying machine is composed of a compressor that compresses the refrigerant, a radiator that radiates the heat of the compressed refrigerant, an adjustment valve that depressurizes the pressure of the compressed refrigerant, It has a heat sink that takes heat away.

  This washing dryer dries while heating and dehumidifying the air for drying by operating the heat pump device in the drying process.

JP-A-64-32893

  If the temperature and humidity of the drying air are not high, this washing dryer does not perform dehumidification well, has the disadvantages that the efficiency of the drying operation is poor and the operation time of the drying process is long.

  In view of the above-described problems, an object of the present invention is to provide a washing / drying machine that is efficient in drying operation and can shorten the operation time of the drying process.

  The present invention relates to a water tub provided in an outer frame housing, a washing / drying tub that is rotatably provided in the water tub and stores laundry, a compressor that compresses refrigerant, and the heat of the compressed refrigerant is dissipated. A heat pump device comprising a heat radiator, a regulating valve for reducing the pressure of the compressed refrigerant, a heat absorber for taking heat away from the enclosure where the refrigerant is reduced to a peripheral low pressure, and drying for drying the laundry in the laundry drying tub In a washing / drying machine having the drying tank including the water tank in which industrial air circulates, the heat absorber, and the heat radiator, a heat sink cooling fan for cooling the heat absorber, and heat radiation for cooling the heat radiator It is provided with a fan for dexterity.

  ADVANTAGE OF THE INVENTION According to this invention, the efficiency of drying operation can be improved and the washing dryer which can shorten the operation time of a drying process can be provided.

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

  As shown in FIG. 1, the drum-type washer / dryer has an outer tub 2 placed inside an outer frame housing 1. The center of the outer tub 2 is supported from below by a plurality of suspensions 3. Further, the outer tub 2 is supported by being suspended from its upper portion by a pulling spring 4.

  The suspension 3 supports the entire weight including the outer tub 2, has a strong elastic support structure, and is fixed to the outer frame base 20 of the outer frame housing 1. In particular, a damping mechanism or the like is provided for absorbing strong vertical vibration of the outer tub 2 that occurs during the dehydration operation and preventing abnormal vibration of the outer tub 2 that occurs when dehydration is started.

  The attachment position of the suspension 3 is provided at a substantially center of gravity of the outer tub 2. In the case of the washing / drying tub (drum) 11 that is inclined to the rear, the height of the suspension 3 becomes low, and the stroke cannot be taken.

  For this reason, since it is difficult to manufacture the damping mechanism portion in the suspension, the position of the center of gravity can be made higher in the height of the suspension than the position in the rear if it is located almost on the center side of the outer tub 2.

  Further, the pulling spring 4 supported by hanging from the upper part of the outer tub 2 is provided to support the falling of the outer tub 2 and to prevent vertical / horizontal vibration during dehydration.

  A water supply electromagnetic valve 6 and a detergent charging case 8 are provided inside the upper side of the outer frame housing 1. The detergent charging case 8 is connected to the water supply electromagnetic valve 6 through a water injection hose 7. A water supply hose 5 is connected to the water supply electromagnetic valve 6. The tip of the water supply hose 5 is connected to a tap (not shown).

  When washing is too easy, the water supply electromagnetic valve 6 is opened, and water necessary for washing and washing is supplied from the water injection hose 7 to the detergent charging case 8.

  A detergent necessary for washing is put into the detergent charging case 8. Further, at the time of rinsing, a softening finishing agent for improving the finish of the laundry is put into the case portion for storing the finishing agent provided in the detergent charging case 8 and automatically put into the outer tub 2 when necessary.

  That is, at the time of washing, the detergent is dissolved in the detergent charging case 8 by the water supplied from the water injection hose 7, flows through the flexible hose 10, and is charged into the inside from the upper part of the outer tub 2.

  The washing / drying tank (drum) 11 is rotatably installed in the outer tank 2. A washing / drying tub (drum) 11 having a bottomed cylindrical shape provided with a charging port on the front side is placed with its rotation axis center inclined so that the charging port 11a is inclined upward.

  The rotation axis center line has an inclination angle θ with respect to the horizontal line of 15 degrees. The inclination of the washing / drying tank 11 is preferably about 15 degrees from taking out the laundry, but the inclination angle θ can be selected within a range of about (5 to 30) degrees.

  The outer tub 2 has a bottomed cylindrical shape provided with a loading port 11b on the front side in the same manner as the washing and drying bath 11, and the central axis passing through the center (center) is inclined so that the loading port is inclined upward. Placed.

  The central axis of the outer tub 2 is placed at the same inclination angle as the rotation axis of the washing / drying tub 11 so as to overlap with each other.

  The outer frame housing 1 has a loading port 11c on the front side. The inlet 11c of the outer frame housing 1 is provided in the same direction as the inlet of the washing / drying tank 11 and the outer tank 2, and is provided with an outer lid 12 that can be opened and closed. The laundry is taken in and out by opening the outer lid 12.

  The bellows 21 is attached in a watertight manner to the mouth edge of the inlet 11 c of the outer frame housing 1 and the inner edge of the inlet 11 b of the outer tub 2. Watertightness between the outer frame casing 1 and the outer tub 2 is maintained by a bellows 21 made of an elastic body. Since the inner side of the outer lid 12 is in close contact with the bellows 21, no water leaks from the inlet 11c of the outer frame housing 1 to the outside.

  The washing / drying tank 11 has a balancer 13 on the outer periphery of the charging port 11a. The balancer 13 reduces vibration during dehydration. The washing / drying tank 11 has a plurality of dewatering holes 14 in the cylindrical portion. At the time of dehydration, water contained in the laundry is dehydrated into the outer tub 2 by centrifugal force through the dehydration hole 14.

  A plurality of (three) lifters 16 are provided in the cylindrical portion of the washing / drying tank 11. The lifter 16 extends along the direction of the rotation axis. The height of the lifter 16 is generally the same height over the longitudinal direction. In order to improve the movement of the laundry located on the back side, the lifter 16 may be substantially horizontal (horizontal when it is located on the lower side) with respect to the rotational axis of the washing / drying tub 11. When there are three (three) lifters 16, they are arranged at equal intervals of 120 degrees.

  The DC brushless motor 19 is attached and fixed to the rear outer surface of the outer tub 2. The DC brushless motor 19 is a drive source that rotationally drives the washing / drying tub 11.

  The washing / drying tank 11 has a flange 17 at the rear end which is the bottom side of the cylindrical portion. A main shaft 18 provided on the flange 17 is coupled to the rotor side of the DC brushless motor 19. Thus, the washing / drying tub 11 is rotatably supported by the outer tub 2 via the DC brushless motor 19 as a driving source.

  The drainage electromagnetic valve 22 is provided at the lower rear part of the outer tub 2 and is connected to a drainage hose 23. By opening the drain electromagnetic valve 22, the washing water and the rinsing water accumulated in the outer tub 2 are drained outside the machine through the drain hose 23.

  Next, the heat pump device and related parts will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the heat pump device includes a compressor 15, a heat absorber 52, a radiator 53, a pressure reducing adjustment valve 26, a communication pipe 25 through which a refrigerant flows, and the like. This heat pump device is provided so as to be attached to and supported by the outer tub 2.

  The compressor 15 has an output of about 400W. The compressed refrigerant can obtain thermal energy about 3 to 6 times the output of the compressor 15.

  The types of compressors include a reciprocating method, a rotary method, and a linear method. Either method may be used.

  However, since it is necessary to make the overall size of the heat pump device compact, noise and vibration are reduced by adopting a linear system that uses a DC brushless motor that uses rare earth magnets made of neodymium magnets for the compressor drive motor. It is possible to make an efficient compressor motor.

  The compressor 15 is attached and supported on the front end side of the outer lower surface of the outer tub 2. The heat absorber 52 is attached and supported near the upper side of the outer rear surface of the outer tub 2. The radiator 53 is disposed inside the lower part of the outer tub 2.

  The heat absorber and radiator will be described in detail. The heat absorber and the heat radiator have a common configuration.

  The heat absorber shown in FIGS. 3 to 6 will be described as an example.

  The heat absorber 52 includes a tubular body 100 through which drying air flows, a heat transfer fin 101 integrally formed so as to extend in the longitudinal direction on the inner periphery of the tubular body 100, and the outer periphery of the tubular body 100. It has a refrigerant circulation pipe 102 that is provided on the side and distributes the refrigerant.

  Further, the heat absorber 52 is integrally formed on the outer periphery of the cylindrical body 100 so as to extend in the longitudinal direction, and includes the refrigerant circulation pipe holding guide 103 that holds the refrigerant circulation pipe 102 and the refrigerant circulation pipe 102. The ventilation cover 104 which surrounds the outer periphery of 100 and guides the flow of cooling air, the discharge connecting pipe 105 provided on the discharge side of the tubular body 100, and the inflow pipe 106 provided on the inflow side of the tubular body 100 are provided.

  The cylindrical body 100, the heat transfer fin 101, the refrigerant flow pipe holding guide 103, and the inflow pipe 106 that are integrally formed of aluminum are formed by drawing. Since the cylindrical body 100, the heat transfer fins 101, and the refrigerant flow tube holding guide 103 are integrally made of aluminum, heat transfer is good.

  Heat exchange between the drying air 107 flowing through the cylindrical body 100 and the refrigerant flowing through the refrigerant flow pipe 102 and heat exchange between the cooling air 108 flowing through the ventilation cover 104 and the refrigerant flowing through the refrigerant flow pipe 102 are performed satisfactorily. It is.

  The heat transfer fin 101 extends in the longitudinal direction of the cylindrical body 100 as shown in FIG. 3 and rises toward the center of the cylindrical body 100 as shown in FIG. Can be formed. Since aluminum is used, drawing is easy.

  The drying air 107 flowing in the cylindrical body 100 flows along the longitudinal direction of the numerous heat transfer fins 101. Since the large number of heat transfer fins 101 extend in the longitudinal direction of the cylindrical body 100, adhesion of lint contained in the drying air hardly occurs.

  In particular, as in the modification shown in FIG. 6, adhesion of lint is not particularly likely to occur by rounding the longitudinal tip angle (drying air inflow side tip angle) of the heat transfer fin. The flow of the drying air flowing through the cylindrical body 100 is kept good.

  The discharge connecting pipe 105 is formed separately from the cylindrical body 100. The discharge connecting pipe 105 is detachably coupled to the discharge side end of the cylindrical body 100. Maintenance inspection in the cylindrical body 100 can be easily performed by removing the discharge connecting pipe 105.

  The inflow pipe 106 and the discharge connecting pipe 105 are connected to a duct constituting a drying air circulation path, whereby the heat absorber 52 communicates with the drying air circulation path and the drying air is circulated.

  As shown in FIGS. 4 and 5, a large number of refrigerant circulation pipe holding guides 103 formed on the outer periphery of the cylindrical body 100 are provided in pairs so as to sandwich the refrigerant circulation pipe 102 from both outsides. It extends in the longitudinal direction of the body 100.

  The refrigerant circulation pipe 102 made of copper is provided between the refrigerant circulation pipe holding guides 103 forming a pair so as to crawl the outer periphery of the cylindrical body 100 so as to repeat the serpentine. Since the refrigerant flow pipe 102 is sandwiched from both sides by the refrigerant flow pipe holding guide 103 and is also in contact with the outer periphery of the cylindrical body 100, heat transfer is good.

  As shown in FIGS. 3 and 5, the ventilation cover 104 that guides the circulation of the cooling air has a cooling air inlet 120 through which the cooling air flows and a cooling air outlet 121 through which the cooling air flows out. The cooling air inlet 120 is located on the discharge connecting pipe 105 side, the cooling air outlet 121 is located on the inlet pipe 106 side, and is provided symmetrically (opposite side) with the center of the cylindrical body 100 in between.

  Because of such a configuration, the cooling air flowing in the ventilation cover 104 touches the refrigerant circulation pipe 102 as a whole. As a result, heat exchange between the cooling air and the refrigerant flowing through the refrigerant flow pipe 102 is better performed.

  As shown in FIG. 2, the heat absorber 52 having the above-described configuration is placed so as to communicate with the drying air circulation path. The radiator 53 having the same configuration as the heat absorber 52 is communicated with the drying air circulation path so that the downstream side of the heat absorber 52 also comes.

  The heat absorber 52 is provided with a heat sink cooling fan 141. The radiator 53 is provided with a radiator fan 142. The capacity of the heat radiator 53 and the heat absorber 52 is increased by cooling the heat absorber cooling fan 141 and the heat radiator fan 142.

  The drying air circulation path includes a heat absorber 52 of the heat pump device, a radiator 53, a heat absorber 52, an outer tub 2 of the washing / drying machine, and a duct 122 for ventilation. Further, the drying air circulation path includes a flexible hose 123, a lint filter device 124, a humidity sensor 125, a blower fan 126, and a flexible hose 127.

  Drying air circulates in the drying air circulation path by the blowing of the blower fan 126. The lint coming out of the laundry 128 and riding on the drying air is collected by the lint filter device 124. Since lint is collected before flowing to the radiator 53 and the heat absorber 52, lint clogging of the radiator 53 and the heat absorber 52 can be prevented.

  The hot and humid drying air that has absorbed the moisture in the laundry 128 flows into the heat absorber 52 through the drying air circulation path. Water that is cooled by the heat absorber 52 and contained in the drying air is separated as condensed water. Condensed water is discharged out of the machine through a drain electromagnetic valve 22 and a drain hose 23.

  The drying air from which moisture has been removed flows into the radiator 53 and is heated, becomes warm drying air with low humidity, flows into the outer tub 2, and dries the laundry 128 in the laundry drying tub 11. Do. The high-temperature and high-humidity drying air that has absorbed the moisture again flows into the heat absorber 52, and the moisture contained in the drying air is taken away. This circulation of drying air is repeated to dry the laundry.

  Here, efficient operation in the drying process will be described with reference to FIGS.

  The heat absorber 52 takes moisture from the drying air after the temperature of the drying air is high and the humidity is high and humid.

  At the start of the drying operation, the temperature in the washing / drying tub 11 is low, and the moisture of the laundry 128 is hardly evaporated. Since the drying air has a low temperature and low humidity, moisture removal of the drying air by the heat absorber 52 is hardly performed.

  Therefore, when the drying operation is started, the heat sink cooling fan 141 is operated. The heat absorber 52 is blown by the normal temperature wind by the cooling fan 141 for the heat absorber. The heat absorber 52 takes in the heat of the wind, and the heat is released to the radiator 53 side. For this reason, heating of the drying air is accelerated, and the temperature rise in the washing / drying tank 11 is accelerated.

  When the drying operation is started several tens of minutes, the drying air reaches a high temperature and high humidity state with a humidity of about 85% (predetermined value). Humidity is detected by the humidity sensor 125.

  When the predetermined value is reached, the radiator fan 142 is operated. The radiator 53 is blown by a normal temperature wind by the radiator fan 142. The radiator 53 takes in the heat of the wind, and the heat is released to the heat absorber 52 side.

  Thereby, the heat absorption of the heat absorber 52 is increased (condensation temperature is further lowered), and the condensation of moisture contained in the drying air is increased.

  Thus, at the start of the drying operation, the heat sink cooling fan 141 is operated to accelerate the temperature rise of the washing / drying tank 11 and the drying air, and when the drying air reaches high humidity, the radiator fan 142 is also operated. As a result, the concentration and removal of moisture in the drying air is increased, so that the drying process is efficiently performed, and as a result, the drying time is shortened.

  The operation of the drying process will be further described along the flowchart of FIG.

  Drying starts in step S1000. Since the humidity does not reach 85% for about several tens of minutes after the start of the drying operation, the operation of only the heat absorber cooling fan 141 continues (step S1002). When the humidity detected by the humidity sensor 125 reaches 85% in step S1001, operation of the radiator fan 142 is also added (step S1003).

  Then, when the operation of the drying process in which the cooling fan 141 for the heat absorber and the fan 142 for the radiator continue to operate and the laundry approaches drying, the humidity detected by the humidity sensor 125 starts to decrease. When the humidity falls below 85%, the heat sink cooling fan 141 and the radiator fan 142 are stopped, and the drying operation is performed until the dryness of the laundry becomes 99% or more based on the humidity information of the humidity sensor 125 ( Step S1004). Thereafter, the process proceeds to the next process (step S1005).

  Another embodiment of the lint filter device will be described with reference to FIG.

  The lint filter device 700 has a lint filter 701 having a wind-flow shape inside. The frame portion 702 of the lint filter 701 has a handle 703 on the surface. The lint filter 701 is detachably accommodated in the lint filter device 700 together with the frame portion 702. Detachment is performed by gripping the handle 703.

  A blower fan 705 is placed on the upstream side of the lint filter device 700 via a duct 704. The downstream side of the lint filter device 700 communicates with the heat absorber side via a duct 706.

  The indicator 707 is provided in the lint filter device 700 so as to communicate with the inlet side (upstream side) of the lint filter 701. An indicator 706 and the inlet side (upstream side) of the lint filter 701 are communicated with each other via a communication pipe 708.

  The lint filter 701 collects lint. As the lint collection increases, the air pressure generated upstream of the lint filter 701 increases. The high air pressure is displayed on the indicator 707. Thereby, since the amount of lint collected is known, the lint filter 701 can be cleaned without forgetting.

  The lint collected by the lint filter 701 is pushed in by the blower fan 705 provided on the upstream side. Unlike the method (suction method) in which suction is performed by a blower fan provided on the upstream side, this push-in method is unlikely to cause the lint to adhere to the filter mesh of the lint filter 701. For this reason, in the pushing method, filter clogging due to lint collection is less likely to occur than in the suction method.

  Next, the operation process of the drum-type washing / drying machine will be described with reference to FIG.

  In this operation process, the dirt adhering to the laundry 9 is removed, the detergent is rinsed off by rinsing, and the water contained in the laundry 9 is dehydrated from the dewatering hole 14 by centrifugal force by the rotation of the washing drying tank 11. It is a block diagram which shows the general automatic washing course which performs draining those water | moisture contents automatically.

  First, water supply 28 is performed by operating the water supply electromagnetic valve 6.

  In the washing 29, when water necessary for washing is supplied into the outer tub 2, the DC brushless motor 19 rotates to drive and rotate the washing / drying tub 11.

  At this time, the rotation speed of the washing / drying tub 11 is about 40 to 50 rotations per minute, and the right and left rotations are performed for several minutes between pauses, and the laundry is being lifted up by the lifter 16 in the washing / drying tub 11. Washed by tapping. During this washing operation, the washing water is heated by the heat radiation to the radiator 53, and washing is promoted.

  When the washing 29 is completed, the washing water containing dirt flowing out from the laundry is transferred to the drainage 30 for discharging the washing water out of the washing / drying machine.

  After the drainage is completed, the process proceeds to dehydration 31 for dehydrating the detergent contained in the laundry. In the dehydration 31, the water contained in the laundry is dehydrated from the plurality of dehydration holes 14 provided on the inner wall of the laundry drying tub 11 by centrifugal force by rotating the laundry drying tub 11 at a high speed.

  When the dehydration 31 is completed, the detergent contained in the laundry is rinsed and the process proceeds to the rinse 33.

  Before entering the operation of the rinsing 33, the necessary fresh water is supplied into the outer tub 2 by the water supply 32 for supplying fresh water in the same manner as in the washing 29.

  In general, about 30 L of fresh water necessary for rinsing is supplied as in washing.

  When a specified amount of fresh water is supplied, the process automatically proceeds to the rinsing 33, and the washing / drying tub 11 rotates while being reversed at a low speed as in the case of washing 29 to remove the detergent contained in the laundry. .

  Drainage after rinsing-dehydration-rinse (2) -drainage is performed in the same manner as described above, and finally, the process proceeds to final dehydration 38 for sufficiently dehydrating moisture contained in the laundry.

  The dehydration time of the final dehydration 38 is generally 5 minutes or longer, and the laundry drying tank 11 is rotated at a high speed to remove moisture from the laundry. The dehydration rate at this time reaches 60 to 65%.

  In the case of a drum type washing / drying machine in which a heat pump device is provided in the drum type washing / drying machine and automatically proceeds from washing to drying, the process automatically proceeds to the drying step 39 after the final dehydration 38 is completed. Transition.

  In the drying step 39, after the moisture in the laundry is sufficiently removed in the dehydration step, the laundry drying is performed while blowing the drying air of hot air heat-exchanged by the radiator 53 by the heat pump device described in FIG. The tank 11 is reversed or rotated in one direction at a speed of about 50 revolutions per minute to remove moisture from the laundry and dry it.

  In the drying process, the laundry is dried. In the washing / drying tank 11, the moisture of the laundry is absorbed by the drying air, and the moisture is taken up by the condensed air from the drying air sucked by the blower fan 126 and sent to the heat absorber 52. The condensed water (condensed water) taken is drained through the condensed water drain hose 27.

  The dehumidified drying air flows through the duct 122 and is sent into the washing / drying tub 11.

  The radiator 53 heats the washing / drying tub 11 and the outer tub 2 to promote the drying of the laundry. After completion of drying, the process automatically proceeds to end 40 to end the washing / drying course.

  Next, the operation of the drum type washer / dryer will be described with reference to the circuit block diagram of FIG.

  The power source 41 is connected to AC 100 V 50/60 Hz, and first the power switch 42 is turned on.

  The energized power is converted from an AC power source to a high-voltage DC power source by a rectifier circuit 44 that is a driving power source of the DC brushless motor 19 through a filter circuit 43 that cuts power line noise and aerial radio noise. It supplies to the DC inverter drive circuit 45 which is a motor drive circuit.

  The DC inverter drive circuit 45 includes an IGBT element circuit that supplies power to each phase coil of the DC brushless motor U phase 46, V phase 47, and W phase 48 at an electrical angle of 120 degrees or 180 degrees according to a control command of the microcomputer 49. The operation is controlled.

  The rotation control of the DC brushless motor 19 is based on the rotation of a rotor (not shown) having a plurality of magnets, and a signal from the IC Hall element 50 fixedly installed on the outer periphery of the DC brushless motor 19 is sent to the microcomputer 49. The rotational speed of the washing / drying tub 11 is adjusted by controlling the rotational speed of the intake.

  Further, fresh water necessary for rinsing to remove dirt and detergent attached to the laundry during washing is energized and supplied to the water supply electromagnetic valve 6 connected to the drive circuit unit 51 according to a command from the microcomputer 49. Further, when draining, the drain electromagnetic valve 22 is opened to drain dirty water outside the washing and drying machine.

  Further, during drying, operation control of the compressor 15 of the heat pump device, the pressure reducing adjustment valve 26, the blower fan 126, the heat absorber cooling fan 141, and the radiator fan is performed.

Moreover, the refrigerant | coolant currently used for the heat pump apparatus is demonstrated.
Specific CFCs (CFC5 types) that have been used as conventional refrigerants are already abolished due to environmental problems.

  In addition, HCHC (R-22) is also subject to consumption restrictions, and HFC-134a is used as an alternative chlorofluorocarbon for the currently used refrigerant. However, HFC-134a has also started to reduce in recent years. For this reason, HC type (hydrocarbon = isobutane, butane, chicory propane, etc.) is shifting to refrigerants in the future.

  In addition, carbon dioxide tends to be used as a refrigerant, but there are drawbacks such as poor performance unless compressed to around 100 atm.

  For example, when HC-based propane gas is used as the refrigerant, it is necessary to consider that the electric system and the like are arranged at a position (particularly, a section) above the refrigerant pipe circulating the refrigerant.

The longitudinal cross-sectional view of the washing-drying machine is related with the Example of this invention. It is an internal enlarged view of the washing-drying machine in the drying operation process according to the embodiment of the present invention. 1 is a cross-sectional view of a heat absorber according to an embodiment of the present invention. It is an external view of the heat absorber related to the Example of this invention, and the ventilation cover was removed. FIG. 4 is a sectional view taken along line XX of FIG. 3 according to another embodiment of the present invention. FIG. 9 is a cross-sectional view showing a modification of the heat absorber according to the embodiment of the present invention. It is a figure concerning the other Example of this invention, and is a figure which shows a lint filter apparatus. FIG. 6 is a circuit block diagram according to another embodiment of the present invention. It is a figure which shows the relationship regarding the air humidity for drying, the driving | operation of the cooling fan for heat absorption, and the driving | operation of the cooling fan for radiators by a flow in connection with the other Example of this invention. FIG. 5 is a diagram related to an example of the present invention, and shows a relationship regarding drying air humidity, drying time, operation of an endothermic cooling fan, and operation of a radiator cooling fan. It is a figure which concerns on the Example of this invention, and shows the driving | operation process of a washing dryer.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Outer frame housing, 2 ... Water tank, 11 ... Washing-drying tank, 15 ... Compressor, 16 ... Radiator, 26 ... Regulating valve, 52 ... Heat absorber, 53 ... Heat radiator, 122 ... Duct, 141 ... Heat absorber Cooling fan, 142 ... radiator fan.

Claims (4)

A water tank provided in the outer frame housing, a washing / drying tank rotatably provided in the water tank for storing laundry, a compressor for compressing refrigerant, a radiator for radiating heat of the compressed refrigerant, and compression A pressure adjusting valve for reducing the pressure of the refrigerant, a heat pump device having a heat absorber for taking the heat from the surroundings of the refrigerant whose pressure has been reduced to low pressure, and drying air for drying the laundry in the washing and drying tank circulate In the washing and drying machine having the drying tank including the water tank, the heat absorber, and the radiator,
A heat sink cooling fan for cooling the heat absorber, and a heat radiator fan for cooling the heat radiator ,
According to the drying capacity of the laundry to be dried, it has a control device that can arbitrarily select operation of the cooling fan for the heat absorber and the fan for the radiator,
The heat absorber or the radiator includes a cylindrical body provided with heat transfer fins extending in a longitudinal direction inside the circulation of the drying air, and a refrigerant circulation pipe provided on an outer periphery of the cylindrical body. A washing / drying machine comprising an airflow cover that surrounds an outer periphery of the cylindrical body including the refrigerant flow pipe and allows air flow by the heat-absorbing device cooling fan or the heat-dissipating fan . In the washing and drying machine according to claim 1,
The washing / drying machine characterized in that the tubular body and the heat transfer fin integrated with aluminum are formed by drawing . In the washing and drying machine according to claim 2,
A washing / drying machine comprising a discharge connecting pipe which is separate from the cylindrical body on the discharge side of the cylindrical body . In the washing and drying machine according to claim 1,
The washing and drying machine , wherein the heat transfer fin has a longitudinal tip angle dropped .

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