JP3915843B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washing / drying machine which performs washing and drying used in general households on the same rotating drum.

  As a conventional washing and drying machine, there are those using a heater as a heat source when drying clothes after washing, and those using a heat pump device as a heat source (for example, see Patent Document 1).

  Hereinafter, a conventional washing and drying machine described in Patent Document 1 will be described with reference to FIG.

  FIG. 10 is a cross-sectional side view of a conventional washing and drying machine described in Patent Document 1. In FIG.

  In FIG. 10, the washing and drying machine 1 has a casing 2, and a door 12 for attaching and removing clothes 6 is attached to a substantially center of the front surface of the casing 2, and the rotary drum 3 is rotatably housed inside. Has been. A predetermined portion of the inner wall of the rotating drum 3 is provided with a beater 5 for lifting and dropping the clothing 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. It is.

  The shaft 11 of the rotary drum 3 is connected to a drive motor (not shown) and is driven to rotate.

  Further, the rear surface of the rotating drum 3 in the casing 2 is partitioned by a partition wall 22 having an air inlet 24 and an air outlet 23, and ducts 10 and 13 through which the circulating air 9 passes are formed. A lower portion of the front surface of the partition wall 22 forms a washing tub 14, and a lower portion of the rotating drum 3 faces the portion of the washing tub 14.

  Each of the air ducts 10 and 13 is formed with a so-called heat pump cycle including a compressor 19, a condenser 18 (condenser), a fan 17, an expansion valve 20, an evaporator 15 (evaporator) and the like. 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.

  The operation and action of each process of the conventional washing / drying machine having the above-described configuration are as follows.

  During the washing and rinsing process, the door 12 is opened, the clothes 6 and an appropriate amount of detergent are put into the rotary drum 3, the door 12 is closed, and the following process is 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 a predetermined number of rotations programmed to perform cleaning. During this time, the garment 6 is lifted and dropped by the beater 5. After the washing is finished, the washing water is drained out of the machine from the washing drain pipe 8 provided at the bottom of the washing tub 14. Subsequently, the rinsing process is executed in the same process. When rinsing is completed, the rinse water is also drained out of the machine from the laundry drainage pipe 8 as washing drainage.

  In the dehydration process, the rotating drum 3 rotates at a programmed number of rotations to dehydrate the moisture 7 in the clothing 6. The dewatered water is also drained out of the machine from the laundry drainage pipe 8 as laundry drainage. During the drying process, the compressor 19, the fan 17 and the rotating drum 3 are operated, and the circulating air 9 circulates from duct 10 ⇒ duct 13 ⇒ inside the rotating drum 3 ⇒ duct 10.

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, where it is cooled to be condensed water (condensed water) and collected and dehumidified. 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 configuration of the conventional washing and drying machine, the drain drain pipe 21 and the wash drain pipe 8 are provided separately, and the washing water and the dew condensation water are separately guided outside the machine. In a general washing machine that does not have a drying function, there is only one drainage hose corresponding to the drainage pipe. When a new washing / drying machine is installed at the place where the washing machine is installed, 1 is used as in the conventional case. It is desirable to be able to perform drainage treatment with two drain hoses in terms of installation work, installation members such as a waterproof floor, and piping equipment under the floor.

  Therefore, if the drain drain pipe 21 and the laundry drain pipe 8 are directly connected in the machine, the water level stored in the washing tub 14 during washing is high, and the drain drain pipe 8 drains from the laundry drain pipe 8 due to water pressure during the washing drain. When the washing water and the rinsing water flow into the piping 21 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, Each of these means has a problem that it gets wet with washing water in which a detergent, a bleaching agent, etc. are dissolved, and causes problems such as poor insulation and corrosion.

  In order to prevent this, in addition to the drainage valve provided in the washing drainage pipe 8, a backflow such as a check valve for preventing a backflow to the drain drainage pipe 21 or a drain valve for the drain drainage pipe 21 is provided. A separate preventive means is required, which complicates the configuration and increases the cost.

The present invention solves the above-described conventional problems, and with a low-cost configuration, it is possible to drain condensed water at the time of the drying stroke with a single drainage pipe, and the condensed water in the drainage tank before starting the drying stroke. An object of the present invention is to provide a washing / drying machine that can perform an appropriate drainage operation regardless of the state and that does not retain condensed water in the drainage tank for a long time .

In order to solve the above-described conventional problems, a washing and drying machine according to the present invention cools a drying drum into which clothes are put, a washing tub that rotatably stores the rotating drum, and drying air when the clothes are dried. a heat pump device having a heating means for heating the dehumidified drying air by dehumidifying means and the dehumidifying means for recovering moisture as dew condensation water and is extended from an opening provided in the inner wall top of the washing tub The first flexible hose configured to blow the drying air discharged through the opening and the duct to the heat pump device, and the drying air heated by the heat pump device. a second flexible hose that is configured to blow air from the back of the washing tub to the rotating the drum, a blower means for circulating the drying air, the removal Shimete In a drain tank for storing the recovered condensed water, the drain pump for pumping the condensed water in the drainage tank, and the condensation drainage channel for draining condensation water raised Ku Mi in the drainage pump, the waste water from the washing tub comprises a washing water discharge passage to flow, and water discharge valve which controls drainage from the washing water discharge passage, and a drainage tube having one end the washing water discharge path and the condensation drainage channel to another end opened to the atmosphere is connected A washing / drying machine capable of performing washing, rinsing, dewatering, and drying processes. When the drying process is performed , the drainage pump is operated for a fourth predetermined time at the start, and then the front When the drainage pump is operated after a predetermined stop time has elapsed and then the intermittent operation for stopping the drain pump after the predetermined operation time has elapsed is repeated. Is The drainage pump which was so as to operate the fifth predetermined time, it is possible drained properly outside the body both washing water and condensed water in one drainage pipe, before starting the drying cycle of the waste water in the tank condensation state can make the appropriate drainage operation regardless of, and Ru can be eliminated that the condensed water stays long time draining the tank.

The washing / drying machine of the present invention can appropriately drain both washing water and dew condensation water out of the main body with one drain pipe, and is suitable regardless of the state of dew condensation water in the drain tank before starting the drying process. drainage operation can be performed, and Ru can be eliminated that the condensed water stays long time draining the tank.

A first invention is a rotating drum into which clothes are put, a washing tub that rotatably stores the rotating drum, and a dehumidifying means that cools drying air and collects moisture as condensed water when the clothes are dried. A heat pump device having heating means for heating the drying air dehumidified by the dehumidifying means, a duct extending from an opening provided in an upper portion of the inner wall of the washing tub, and the opening and the duct. The first flexible hose configured to blow the discharged drying air to the heat pump device, and the drying air heated by the heat pump device is blown into the rotating drum from the back surface of the washing tub. a second flexible hose that is configured to, a blowing means for circulating the drying air, a drain tank for storing the condensed water recovered by the dehumidifier A drain pump for pumping the condensed water in the drainage tank, and the condensation drainage channel for draining condensation water which the raised Ku Mi drainage pump, a wash water discharge path for flowing the effluent from the washing tub from the washing water discharge passage a drain valve for controlling the drainage, one end and a single drain pipe the washing water discharge path and the condensation drainage channel to open the other end is connected to the atmosphere, washing, rinsing, dehydrating, each stroke of the drying a viable washing and drying machine, wherein during the drying process performed at the start, the drainage pump so as to operate a fourth predetermined time, then the pre-Symbol drainage pump operation after a predetermined stop time After the operation, the intermittent operation is stopped after a predetermined operation time has elapsed, and the drain pump is operated for a fifth predetermined time when the drying process is completed when the drain pump is stopped. Let Obtained by way, it is possible drained properly outside the body both washing water and condensed water in one drain pipe, a suitable drainage operation regardless of the state of condensation water drain tank before starting the drying step It can be performed, and Ru can be eliminated that the condensed water stays long time draining the tank.

  In the second invention, in particular, in the washing process of the first invention, the drain pump is operated after a predetermined stop time has elapsed, and the operation for stopping the drain pump after the predetermined operation time has elapsed is repeated. Even when water accumulates in the drainage tank during the process, it is possible to provide a washing / drying machine that can appropriately drain the outside of the main body and can appropriately drain both the washing water and the dew condensation water to the outside of the main body with one drain pipe.

In the third invention, the predetermined stop time and / or operation time of the drainage pump of the first or second invention can be arbitrarily changed, and the drainage operation is performed at an appropriate timing according to the use situation. In addition, it is possible to provide a washing and drying machine that can appropriately drain both washing water and dew condensation water to the outside of the main body with one drain pipe .

The fourth aspect of the invention is such that the drainage pump is operated for a first predetermined time when the power supply of any one of the first to third aspects of the invention is turned on. Therefore, it is possible to provide a washing and drying machine capable of performing an appropriate drainage operation regardless of the state in the drainage tank before the power is turned on.

The fifth invention is such that the drainage pump is operated for a sixth predetermined time when the main body of any one of the first to fourth inventions is turned off. Condensed water in the tank is discharged, and a washing / drying machine that does not retain the condensed water in the drainage tank for a long time can be provided.

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

(Embodiment 1)
The washing / drying machine in the 1st Embodiment of this invention is demonstrated using FIGS. 1-3. FIG. 1 is a perspective view of the washing / drying machine according to the present embodiment as viewed from the back, and FIG. 2 is a side sectional view.

  In FIG. 1, a washing tub 26 is provided in a washing / drying machine main body 25 (hereinafter referred to as “main body 25”) in the present embodiment, and a motor 27 is attached. The washing tub 26 is attached to the main body 25 by being supported by suspensions 29 on both sides and an upper suspension 30.

  The main body 25 is composed of a compressor 35 that compresses the vaporized refrigerant, a tube heat exchanger with plate fins that radiates the heat of the compressed high-temperature and high-pressure refrigerant, and the pressure of the high-pressure refrigerant. And an expansion valve or a throttle means 37 formed of a capillary tube, and a heat sink 38 which is composed of a tube-type heat exchanger with plate fins and depressurizes and takes heat from the surroundings with a low pressure refrigerant. The heat pump device is formed by connecting the machine 35, the radiator 36, the throttle means 37, and the heat absorber 38 in this order and connected by a conduit 39 so that the refrigerant circulates again through the compressor 35.

  The air passage 40 is configured to communicate the heat absorber 38 as a dehumidifying means 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. A duct 44 is provided on the outer wall of the washing tub 26 and communicates the inside of the washing tub 26 and the air passage 40. An arrow B indicates the flow of drying air in the duct 44 and the air passage 40.

  In FIG. 2, the rotary drum 28 is attached directly to the shaft of the motor 27 and installed in the washing tub 26. Doors 32 for putting clothes 31 into the rotary drum 28 are provided at positions corresponding to the front openings 26 a and 28 a of the washing tub 26 and the rotary drum 28, respectively. 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 main body 25. 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. The opening 56 is provided on the inner wall of the washing tub 26 and communicates the washing tub 26 with the duct 44. An arrow C indicates the flow of drying air in the washing tub 26 and the rotating drum 28.

  The washing drainage channel 47 drains the washing water and the rinsing water at the time of easy washing. The condensation drainage channel 48 allows the condensed water generated by the heat absorber 38 to flow when the clothes 31 are dried, and the washing drainage channel 47 and the condensation drainage channel 48 are connected to a single drainage pipe 49. The tip 50 of the drain pipe 49 is open to the atmosphere outside the main body 25. There is one drainage valve 60 at the junction of the washing drainage channel 47 and the condensation drainage channel 48, and the drainage treatment means is constituted by the washing drainage channel 47, the condensation drainage channel 48, the drainage pipe 49, and the drainage valve 60. .

  In the present embodiment, when the heat absorber 38 that is a dehumidifying means cannot be disposed upward in the configuration, the condensed water accumulates at a position lower than the installation position of the drain valve 60, and the condensed water cannot be drained directly to the drain valve 60. The wastewater treatment means further includes a drainage tank 67 for accumulating condensed water, and a drainage pump 68 for pumping up water in the drainage tank 67, and the water absorption part 69 of the drainage pump 68 is a substantially bottom part of the drainage tank 67. The discharge port 70 of the drainage pump 68 is connected to the condensation drainage channel 48. The control means 71 controls the drain pump 68 in accordance with the state of the drain pump 68 and the passage of time.

  FIG. 3 is an enlarged cross-sectional view showing the configuration of the drain valve 60.

  In FIG. 3, the drain valve 60 includes a valve 61 that opens and closes a water channel and a motor 62 that rotationally drives the valve 61. When the valve 61 is driven by the motor 62 and the d side of the flow path 61a is closed, the washing drainage channel 47 side is closed, the condensation drainage channel 48 side (e side) is opened, and conversely, the valve 61 is rotated by the motor 62. Then, the washing drainage channel 47 side is opened, the condensation drainage channel 48 side is closed, and the backflow prevention that prevents the washing water and the rinsing water from flowing backward from the washing drainage channel 47 to the condensation drainage channel 48 is performed. Means are formed.

  The operation and action of the washing / drying machine configured as described above will be described below.

  In the washing process from washing, rinsing and dehydration, when the water is stored, the state of the valve 61 of the drain valve 60 is the d side in FIG. 3, the laundry drainage channel 47 side is closed, and the condensation drainage channel 48 side is opened. Yes. Water is supplied to the washing tub 26 from a water supply valve (not shown), and is stored up to the position of the water level D in FIG. The rotating drum 28 rotates continuously or intermittently at a programmed number of rotations, and cleaning and rinsing are performed. During this time, the garment 31 is lifted and dropped by the rotation of the rotary drum 28. When draining, the valve 61 of the drain valve 60 is set to the e side in FIG. 3, the washing drainage channel 47 side is opened, and the condensation drainage channel 48 side is closed. The washing water in the washing tub 14 passes through the washing drainage channel 47 and the drainage valve 60 without flowing into the condensation drainage channel 48 and is drained from the drainage pipe 49 to the outside of the main body 25.

  In the present embodiment, since the water may be accumulated in the drainage tank 67 via the duct 44 even during the washing process, the control means 71 performs a predetermined stop time while the drainage pump 68 is stopped. When it has elapsed, the drain pump 68 is operated to discharge condensed water to the outside of the main body 25, and when a predetermined operation time has elapsed during the operation of the drain pump 68, the drain pump 68 is stopped. ing.

  In the drying process, the valve 61 of the drainage valve 60 is rotated to the d side in FIG. 3 to close the washing drainage channel 47 side and open the condensation drainage channel 48 side, and the compressor 35, the blowing means 43 and the rotary drum 28 are operated. Is done. 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 clothing 31 is 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 line 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 surface of the rotary drum 28, hits the clothing 31, and takes away moisture from the clothing 31. The humid 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 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. Condensed water generated in the heat absorber 38 drops into the drain tank 67 and accumulates there. At this time, when the stop time of the drain pump 68 has passed a predetermined stop time, the control means 71 operates the drain pump 68 to discharge condensed water to the outside of the main body 25, and performs a predetermined operation while the drain pump 68 is operating. When time elapses, the drain pump 68 is stopped.

  In this embodiment, the stop time and operation time of the drain pump 68 are calculated optimally from the drain capacity of the drain pump 68 and the dehumidifying capacity of the heat absorber 38 as the dehumidifying means, and are set in the control means 71 in advance. However, if the optimum value is different from the preset value due to the ambient temperature, humidity, etc., the aging of the capacity of the main body 25, etc., it is set in the control means 71 by an operating means (not shown). It is also possible to change existing values.

  In addition, when the optimum values in the washing process and the drying process are different, it is possible to set the stop time and operation time of the drainage pump 68 for each process or for each more detailed process category such as washing and rinsing. It is.

  As described above, in the present embodiment, when a predetermined stop time elapses while the drain pump 68 is stopped, the drain pump 68 is operated to discharge condensed water to the outside of the apparatus. By providing the control means 71 for stopping the drainage pump 68 when the operation time of the period elapses, the drainage operation is performed at an appropriate timing, and in the same manner as a washing machine without a drying function, The condensed water can be drained outside the main body 25.

  Further, if the control means 71 can arbitrarily change the predetermined stop time and operation time of the drain pump 68, the drain operation can be performed at an appropriate timing according to the use situation.

  Further, by setting the stop time and operation time of the drainage pump 68 for each operation process such as washing and drying of the washing / drying machine by the control means 71, the drainage operation is performed at an appropriate timing according to the use situation and the operation process. be able to.

  In the present embodiment, an example in which a heat pump device is used as a heat source at the time of drying the garment 31 is shown, but other heat sources such as a heater or an induction heating device may be used.

  Moreover, in the said embodiment, although the tube type heat exchanger with a plate fin was used as the heat radiator 36 or the heat absorber 38, it is not limited to the form in particular. Further, although the drain pump 68 is operated during the drying stroke, it may be operated during other strokes.

  In addition, the drain pump 68 is intermittently operated by repeating the stop / operation alternately. However, when the dehumidifying capacity of the dehumidifying means 38 is greater than or equal to the drain capacity of the drain pump 68, the stop time is zero, that is, You may make it drive continuously. On the contrary, if the water tank 67 is configured not to accumulate water in a certain stroke, the operation time may be zero in that stroke, that is, the stop state may be maintained.

  FIG. 4 is a flowchart showing another control example of the drainage pump of the washing / drying machine in the embodiment.

  The heat absorber 38 has a temperature lower than that of the surrounding air due to the operation of the compressor 35 and acts as a dehumidifying means. However, even if the compressor 35 is stopped, the heat absorber 38 is lower than the ambient temperature for a while. This keeps the state of the temperature low and acts as a dehumidifying means. For this reason, there is a possibility that condensed water may accumulate in the drainage tank 67 even after the drying process is completed and the washing / drying machine is turned off. In this state, if the drainage pump 68 is intermittently operated with the stop time and operation time determined from the dehumidifying capacity of the heat absorber 38 and the drainage capacity of the drainage pump 68, the dew condensation water that has accumulated in the drainage tank 67 when the washing dryer is turned on. May not be drained and may exceed the capacity of the drainage tank 67 and overflow.

  In order to avoid this, in this control example, as shown in FIG. 4, when the washing / drying machine is turned on, the control means 71 starts the operation of the drainage pump 68 in step ST <b> 1, When the time elapses, it is determined in step ST2 that the initial operation time has elapsed, and in step ST3, the operation of the drainage pump 68 is stopped, and thereafter normal control is performed.

  Thus, according to this control example, the control means 71 operates the drain pump 68 for the first predetermined time when the washing / drying machine is turned on to discharge the condensed water in the drain tank 67. Appropriate drainage operation can be performed regardless of the state in the drainage tank 67 before putting in.

  FIG. 5 is a flowchart showing another control example of the drainage pump of the washing / drying machine in the present embodiment.

  Depending on the configuration of the washing and drying machine, it is possible to continue to the next washing process without turning off the power at the end of the drying process, but in that case, depending on the time from the end of the drying process to the start of the washing process, There is a possibility that condensed water may be accumulated in the drainage tank 67 by a certain heat absorber 38.

  In order to avoid this, as shown in FIG. 5, in this control example, when the washing process is started, the control means 71 starts the operation of the drainage pump 68 in step ST4, and the second predetermined time has elapsed. Then, it is determined that the initial operation time has elapsed in step ST5, the operation of the drain pump 68 is stopped in step ST6, and normal control is performed thereafter.

  As described above, according to this control example, the control means 71 operates the drain pump 68 for the second predetermined time at the start of the washing process to discharge the condensed water in the drain tank 67 at the start of the washing process. Thus, an appropriate drainage operation can be performed regardless of the state in the drainage tank 67 before starting the washing process.

  FIG. 6 is a flowchart showing another control example of the drainage pump of the washing / drying machine in the present embodiment.

  In the control means 71, when the drain pump 68 is operated for a predetermined time and is intermittently operated to stop for a predetermined time, when the washing process is completed while the drain pump 68 is stopped, condensed water has accumulated in the drain tank 67. There is a risk of being left unattended.

  In order to avoid this, in this control example, as shown in FIG. 6, when the washing process ends, the control means 71 starts the operation of the drainage pump 68 in step ST7, and when the third predetermined time has elapsed, In step ST8, it is determined that the operation time at the end has elapsed, and in step ST9, the operation of the drain pump 68 is stopped.

  As described above, in the present control example, the control means 71 operates the drain pump 68 for the third predetermined time at the end of the washing process to discharge the condensed water in the drain tank 67 at the end of the washing process. A washing / drying machine in which condensed water does not stay in 67 for a long time can be provided.

  FIG. 7 is a flowchart showing another control example of the drainage pump of the washing / drying machine in the present embodiment.

  Depending on the configuration of the washing and drying machine, a new drying process can be continuously performed without turning off the power at the end of the drying process. In that case, depending on the time from the end of the drying process to the start of a new drying process, even if the compressor 35 is stopped at the end of the first drying process, the temperature of the heat absorber 38 remains low, and the heat absorber 38 It acts as a dehumidifying means, and there is a possibility that condensed water is accumulated in the drain tank 67.

  In order to avoid this, in this control example, as shown in FIG. 7, when the drying process is started, the control means 71 starts the operation of the drainage pump 68 in step ST10, and the fourth predetermined time has elapsed. Then, it is determined that the initial operation time has elapsed in step ST11, the operation of the drainage pump 68 is stopped in step ST12, and thereafter normal control is performed.

  As described above, according to this control example, the control means 71 operates the drain pump 68 for the fourth predetermined time at the start of the drying process, so that the condensed water in the drain tank 67 is surely discharged at the start of the drying process. Thus, it is possible to provide a washing / drying machine that performs an appropriate drainage operation regardless of the state in the drainage tank 67 before starting the drying process.

  FIG. 8 is a flowchart showing another control example of the drainage pump of the washing / drying machine in the present embodiment.

  When the drainage pump 68 is operated for a predetermined time by the control means 71 and is intermittently operated to stop for a predetermined time, when the drying process is completed while the drainage pump 68 is stopped, the condensed water has accumulated in the drainage tank 67. There is a risk of being left alone.

  In order to avoid this, in this control example, as shown in FIG. 8, when the drying process ends, the control means 71 starts the operation of the drainage pump 68 in step ST13, and when the fifth predetermined time has elapsed, In step ST14, it is determined that the operation time at the end has elapsed, and the operation of the drain pump 68 is stopped in step ST15.

  As described above, according to this control example, when the control unit 71 operates the drain pump 68 for the fifth predetermined time at the end of the drying process, the dew condensation water in the drain tank 67 is discharged at the end of the drying process. In addition, it is possible to provide a washing / drying machine that does not retain condensed water in the drain tank 67 for a long time.

  FIG. 9 is a flowchart showing another control example of the drainage pump of the washing / drying machine in the present embodiment.

  In the intermittent operation in which the drainage pump 68 is operated for a predetermined time and stopped for a predetermined time in the control means 71, if the washing / drying machine is turned off while the drainage pump 68 is stopped, dew condensation occurs in the drainage tank 67. There is a risk of being left in a pool of water.

  In order to avoid this, in this control example, as shown in FIG. 9, when the control for turning off the power to the washing and drying machine is started, the control means 71 starts the operation of the drainage pump 68 in step ST16. When the sixth predetermined time has elapsed, it is determined in step ST17 that the end operation time has elapsed, and in step ST18, the operation of the drain pump 68 is stopped.

  As described above, according to this control example, the control means 71 operates the drainage pump 68 for the sixth predetermined time when the washing / drying machine is turned off, so that the condensed water in the drainage tank 67 at the end of the drying process. Accordingly, a washing / drying machine in which the dew condensation water does not stay in the drain tank 67 for a long time can be provided.

As described above, the washing / drying machine according to the present invention can drain both washing water and dew condensation water with a single drain pipe, and also relates to the state of the dew condensation water in the drain tank before starting the drying process. can not perform an appropriate drainage operation, and the waste water tank to be able to eliminate the condensed water stays long Runode, household, can be widely applied to industrial washing and drying machine.

The perspective view which looked at the washing / drying machine in the 1st Embodiment of this invention from the back Side sectional view of the washer / dryer Enlarged sectional view of the drainage valve of the washer / dryer Flow chart of the control means showing another control example of the drainage pump of the washing and drying machine Flow chart of the control means showing another control example of the drainage pump of the washing and drying machine Flow chart of the control means showing another control example of the drainage pump of the washing and drying machine Flow chart of the control means showing another control example of the drainage pump of the washing and drying machine Flow chart of the control means showing another control example of the drainage pump of the washing and drying machine Flow chart of the control means showing another control example of the drainage pump of the washing and drying machine Side view of a conventional washer-dryer

Explanation of symbols

25 Washer / dryer main unit
26 Washing tub 28 Rotating drum 38 Heat absorber (dehumidifying means)
47 Laundry drainage 48 Condensation drainage 49 Drainage pipe 67 Drainage tank 68 Drainage pump

Claims (5)

Dehumidified by the rotating drum into which clothes are put in, a washing tub for rotatably storing the rotating drum, dehumidifying means for cooling the drying air and collecting moisture as condensed water when the clothes are dried, and the dehumidifying means A heat pump device having heating means for heating the drying air, a duct extending from an opening provided in an upper portion of the inner wall of the washing tub, and the drying exhaust discharged through the opening and the duct A first flexible hose configured to blow air to the heat pump device, and a first flexible hose configured to blow drying air heated by the heat pump device into the rotating drum from the back of the washing tub. and 2 of the flexible hose, a blower means for circulating the drying air, a drain tank for storing the condensed water recovered by the dehumidifier, the drainage tank A drain pump for pumping the condensed water of the inner, and condensation drainage channel for draining condensation water raised Ku Mi in the drainage pump, a wash water discharge path for flowing the effluent from the washing tub, the drainage from the washing water discharge passage It includes a drain valve that controls, and one of the drain pipe, one end of the washing drainage path and the condensation drainage channel to open other end to the atmosphere is connected, washing, rinsing, dehydration, which can execute each step of drying A washing and drying machine,
Wherein in the drying step performed at the start, the drainage pump so as to operate a fourth predetermined time, then the pre-Symbol drainage pump, after operating after a predetermined stop time, a predetermined operation time has passed An intermittent operation to be stopped later is repeated, and when the drainage pump is stopped, the drainage pump is operated for a fifth predetermined time when the drying process is completed . The washing / drying machine according to claim 1, wherein in the washing process, the drain pump is operated after a predetermined stop time has elapsed and is repeatedly stopped after the predetermined operation time has elapsed. The washing / drying machine according to claim 1 or 2, wherein a predetermined stop time and / or operation time of the drainage pump can be arbitrarily changed. The washing / drying machine according to any one of claims 1 to 3 , wherein the drainage pump is operated for a first predetermined time when the power is turned on. The washing / drying machine according to any one of claims 1 to 4 , wherein the drainage pump is operated for a sixth predetermined time when the power of the main body is turned off.

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