JP2016016228A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine in which a dry state of a drain filter is attained after a washing operation ends to suppress a generation of an unpleasant odor.SOLUTION: The washing machine comprises: a housing 1; a water tub 2 provided within the housing 1; a drum 3 provided so as to be rotatable within the water tub 2; a motor 8 for rotationally driving the drum 3; a water supply path including a water supply piping 10 and a water supply valve 9 for supplying washing water into the water tub 2; a drain path including a drain piping 14 and a drain valve 13 and a drain filter 16 and connected to a bottom part of the water tub 2 for draining washing water in the water tub 2 to the outside of the machine; an air blowing path 17 branched from a halfway of the drain path including the drain filter 16 and connected to an outflow portion 20 of the water tub 2; a first air blowing portion 19 provided in the air blowing path 17; and a controller 25 for executing a washing operation. The controller 25 is configured to execute a drain filter drying step for drying the drain filter 16 by driving the first air blowing portion 19 to circulate air in the water tub 2 via the drain filter 16 into the water tub 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a washing machine for washing laundry such as clothes.

  Conventionally, in this type of washing machine, a filter device that collects lint and foreign matters generated from the laundry is provided in the drainage path (see, for example, Patent Document 1). In the washing machine described in Patent Document 1, the washing water used for washing and the water separated from the laundry in the dehydration step are discharged out of the machine through a drainage path provided below the water tank, and the drainage path It passes through the filter device provided in the. For this reason, even after washing is finished, the lint collected in the drainage channel and the filter device is in a wet state.

  In addition, a washing machine having a drying function capable of continuously performing from washing to drying, that is, a so-called washing and drying machine is also common (see, for example, Patent Document 2). In the washing / drying machine described in Patent Document 2, in the warm air circulation drying step, air in the inner tub circulates through the air passage while the drying of the laundry in the inner tub proceeds. For this reason, the drying air does not flow into the drainage path, and the drainage path is still wet after the operation is completed.

  In the intake drying process, the air sucked into the blower from the opened intake valve takes moisture from the laundry, passes through the drainage channel, breaks the water seal of the drain trap, and is discharged. At this time, the air passing through the drainage channel is moist air that has taken moisture from the laundry, and the dry air flows through the drainage channel as the laundry progresses. In the final stage of the intake drying process, water is supplied to the drain trap via the drainage channel to recover the water seal. For this reason, the operation is finished in a state where the drainage channel is wet with water. After the operation is finished, the intake valve is opened to ventilate the outer tub and the air passage so as to prevent mold.

  Moreover, in the washing machine provided with the drying function, a dehumidifying part using drainage is provided in the drainage channel (see, for example, Patent Document 3). In the washing machine described in Patent Document 3, when clothes are dried, hot air for drying clothes is introduced into the dehumidifying part through the drainage control valve and the drainage filter of the drainage channel, and the hot air is dehumidified by water cooling, and then the drying part is used. Return and circulate. A predetermined amount of drainage is stored in the dehumidifying section, and the hot air for drying clothes that passes through the dehumidifying section is cooled by the stored drainage to be dehumidified.

JP 2010-136740 A JP 2010-246709 A Japanese Utility Model Publication No. 2-71483

  However, in the configurations described in Patent Documents 1 and 2, the drainage path and the drainage filter provided in the drainage path are in a wet state even after washing is finished. For this reason, when left in a wet state, there is a problem that a strange odor is generated due to propagation of various germs.

Moreover, in the structure described in patent document 3, since waste_water | drain is stored in the dehumidification part provided in the drainage channel, it is in the state which got wet even after washing was finished. And after washing, it transfers to a clothing drying process in the state which stored a part of waste_water | drain in the dehumidification part, and the hot air for clothes drying sent to a dehumidification part from a drain outlet passes the waste_water | drain filter which collected lint. However, the lint is in a state of being wet with the drainage of the washing water. For this reason, there existed a problem that ventilation resistance was large, it was difficult to ensure sufficient air volume, and it was difficult to implement | achieve favorable drying performance.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a washing machine in which the drainage filter is dried after the washing operation is finished to suppress generation of unpleasant odor.

  In order to solve the above-described conventional problems, a washing machine of the present invention includes a housing, a water tank provided in the housing, an inner tank rotatably provided in the water tank, and a rotational drive of the inner tank. A water supply path for supplying washing water into the aquarium including a motor, a water supply pipe and a water supply valve, a drainage pipe, a drainage valve, and a drainage filter, and connected to the bottom of the water tank and connected to the water in the water tank A drainage path for draining the outside of the machine, a blower path branched from the middle of the drainage path including the drainage filter and connected to the outflow part of the water tank, and a first blower part provided in the blower path; And a control unit that executes a washing operation, wherein the control unit drives the first air blowing unit to circulate the air in the water tank into the water tank via the drainage filter. Drain filter drying process to dry Those that are configured so that.

  Thereby, after completion of the washing operation, the drainage filter wet with the drainage of the washing water can be dried, and the generation of unpleasant odor can be suppressed.

  The washing machine of the present invention can suppress the generation of unpleasant odor by drying the drainage filter after the end of the washing operation.

1 is a schematic configuration diagram of a washing machine according to Embodiment 1 of the present invention. Block configuration diagram of the washing machine in the present embodiment Adsorption characteristic graph with respect to humidity of deodorizing part of washing machine in the present embodiment Adsorption characteristic graph with respect to the temperature of the deodorizing part of the washing machine in the present embodiment Schematic configuration diagram of a washing machine in Embodiment 2 of the present invention The principal part enlarged view of the washing machine in this Embodiment System diagram of washing machine in the present embodiment Block configuration diagram of the washing machine in the present embodiment System diagram of washing machine in Embodiment 3 of the present invention System diagram of washing machine in Embodiment 4 of the present invention The principal part enlarged view of the washing machine in Embodiment 5 of this invention

A first invention includes a housing, a water tank provided in the housing, an inner tank rotatably provided in the water tank, a motor for rotationally driving the inner tank, a water supply pipe, and a water supply valve. A water supply path for supplying washing water into the aquarium, a drainage path for draining the washing water in the aquarium to the outside, connected to the bottom of the aquarium, including a drain pipe, a drain valve, and a drain filter, A blower path branched from the middle of the drainage path including a drainage filter and connected to the outflow part of the water tank, a first blower part provided in the blower path, and a control unit for performing a washing operation The control unit drives the first air blowing unit and circulates the air in the water tank through the drainage filter into the water tank to perform a drainage filter drying process for drying the drainage filter. It is composed of. Thereby, after completion | finish of washing operation, the drainage filter wet with the drainage of washing water can be made into the dry state, and generation | occurrence | production of an unpleasant odor can be suppressed. Moreover, the lint collected by the drainage filter is solidified, and the user can easily dispose of the lint.

  In a second aspect of the invention, in particular, in the first aspect of the invention, the control unit is configured to execute the drainage filter drying step after the dehydration step included in the washing operation. Thereby, in the dehydration step, the water separated from the laundry is discharged from the inner tank and the water tank to the outside of the machine through the drainage path. As the laundry dewaters, water stops flowing through the drainage path, and the drainage filter can be dried efficiently.

  In particular, according to a third aspect of the present invention, in the first aspect of the present invention, the inflow portion and the outflow portion are provided in the water tub, and the drying air passage for drying the laundry in the inner tub is provided in the dry air passage. A second air blowing unit, and the control unit drives the second air blowing unit after the dehydration step included in the washing operation, and causes the water in the water tank to pass through the drying air flow path to the water tank. It is configured to execute a drying step of circulating the inside to dry the laundry in the inner tub. As a result, the drainage filter wet with the drainage of the washing water can be dried after the washing operation or after the drying process according to the driving course, and the generation of unpleasant odor can be suppressed. .

  According to a fourth aspect of the invention, in the third aspect of the invention, the control unit is configured to execute the drainage filter drying step after the drying step. As a result, the moisture released from the laundry by the drying process does not flow through the drainage filter through the drainage filter, and the drainage filter drying process is performed after the inside of the aquarium becomes dry, so that the drainage filter can be efficiently dried. it can.

  In particular, according to a fifth aspect of the invention, in the third or fourth aspect of the invention, the dry air passage and the air passage join together before the outflow portion to the water tank, and one of the joined passages is the outflow. An air path switching unit that switches so as to communicate with the unit, and the control unit switches the air path switching unit so that the dry air flow path communicates during the drying process, and the air flow path during the drainage filter drying process The air path switching unit is configured to be switched so as to communicate with each other. Thereby, it is not necessary to provide a plurality of outflow parts in the water tank, and the configuration and switching of the water tank, the drying air passage, and the air passage can be rationally performed.

  In a sixth aspect of the invention, in particular, in any one of the third to fifth aspects of the invention, a heating section is provided between the outflow section and the air path switching section, and the control section is provided in the drainage filter drying step. The air that has passed through the drainage filter is heated by the heating unit. Thereby, the heating of the drying air at the time of a drying process and the heating of the drying air at the time of a drainage filter drying process can be efficiently heated by using a 3rd heating part together.

  According to a seventh aspect of the invention, in particular, in the third or fourth aspect of the invention, the air flow path merges immediately after the inflow portion of the dry air flow path, and any one of the merged paths communicates with the outflow portion. And the control unit switches the air path switching unit so that the dry air flow path communicates during the drying process, and the air flow path communicates during the drainage filter drying process. The air path switching unit is configured to be switched. Thereby, it is not necessary to provide a plurality of dehumidifying units, heating units, and air blowing units, which are the outflow part of the water tank, and a drying function, and the configuration and switching of the water tank, the drying air path, and the air blowing path can be rationally performed. In addition, the drainage filter drying step and the drying step can be efficiently performed by using both of them.

In an eighth aspect of the invention, in particular, in any one of the first to fourth aspects of the invention, the blower path has the outflow portion provided outside the labyrinth seal. As a result, the drying air that has flowed out of the air passage into the water tank can flow from the drain port to the drain path without passing through the inner tank, and the drying air can be circulated efficiently and quickly during the drainage filter drying process. Can be done.

  In a ninth aspect of the invention, in particular, in any one of the second to eighth aspects of the invention, the control unit has a timer unit for measuring time, and measures time after the dehydration step or the drying step is completed. The drainage filter drying step is performed after a predetermined time from the start. Thereby, after completion of the dehydration process or the drying process, after the laundry in the inner tub is taken out, the drainage filter drying process can be performed, and the drain filter is left in a wet state. Can be shortened and dried.

  In a tenth aspect of the invention, in particular, in any one of the first to ninth aspects of the invention, the blower path includes a deodorizing portion, and the deodorizing portion is disposed on the downstream side of the drainage filter. is there. Thereby, the odor generated in the drainage filter drying step can be eliminated.

  In an eleventh aspect of the invention, in particular, in the tenth aspect of the invention, a dehumidifying portion is provided in the air blowing path, and the deodorizing portion is disposed on the downstream side of the dehumidifying portion. As a result, the cooled and dehumidified air passes through the deodorization part, so that the deodorization part effectively improves the deodorization performance by enhancing the adsorption characteristic of odorous substances at a temperature and humidity excellent in adsorption characteristic. It can be demonstrated.

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

(Embodiment 1)
FIG. 1 is a schematic configuration diagram of a washing machine according to Embodiment 1 of the present invention. FIG. 2 is a block diagram of the washing machine in the present embodiment.

  As shown in FIG. 1, a water tank 2 elastically supported by a damper 1a is provided in a housing 1. A bottomed cylindrical drum 3 is rotatably provided in the water tank 2 as an inner tank for storing laundry such as clothes (hereinafter referred to as clothes or laundry). The drum 3 is provided such that the rotation shaft 3a is inclined forward and upward at an angle θ (for example, 5 to 20 degrees).

  An opening 6 through which clothes are taken in and out is provided on the front side of the drum 3. A plurality of baffles 4 projecting inward are provided inside the peripheral side surface of the drum 3, and the laundry is lifted when the drum 3 rotates slowly. A plurality of small holes 5 communicating with the inside of the water tank 2 are provided on the peripheral side surface of the drum 3. On the front side of the drum 3, a balancer 7 is formed in an annular shape so as to surround the opening 6 in order to reduce vibrations caused by the bias of the laundry when the drum 3 rotates.

  A motor 8 that rotationally drives the drum 3 is attached to the rear surface of the water tank 2. The motor 8 is constituted by a brushless DC motor, and the rotation speed can be freely changed by inverter control.

  A water supply path for supplying washing water into the water tank 2 includes a water supply valve 9, a water supply pipe 10, and a detergent case 11. The water supply valve 9 is provided in the water supply piping 10 connected to the water supply etc., and opens and closes a water supply path. The washing water flows through the water supply pipe 10, passes through the water supply valve 9 and the detergent case 11, and flows into the water tank 2 from the water supply port 12 provided at the upper rear part of the water tank 2. At this time, if it is a washing process at the start of washing, the detergent put into the detergent case 11 is supplied to the aquarium 2 as washing water together with tap water, and only tap water is supplied as washing water when rinsing. . Washing water collected at the bottom of the water tank 2 flows into the drum 3 through the small holes 5. The water supply port 12 communicates with the inside of the water tank 2 at the rear part of the drum 3.

  The drainage path for draining the wash water in the aquarium 2 includes a drain valve 13, a drain pipe 14, and a drain filter 16. The drain valve 13 is provided in the drain pipe 14 to open and close the drain path. At the time of drainage, the washing water in the water tank 2 flows into the drain pipe 14 from the drain port 15 provided at the bottom of the water tank 2, and the drain valve 13 is opened and discharged outside the apparatus. A drain filter 16 is provided in the drain pipe 14 between the drain port 15 and the drain valve 13. The drainage filter 16 collects foreign matter such as lint and buttons such as lint and dust separated from the laundry.

  A blower path 17 branched from the middle of the drain pipe 14 including the drain filter 16 and connected to the outflow part 20 provided at the rear part of the water tank 2 is connected to the drain path. The blower path 17 branches from the drainage path via a switching valve 18 provided between the drainage filter 16 and the drainage valve 13 and communicates with the outflow portion 20. A first blower 19 is provided in the blower path 17. The drying air blown to the blower path 17 by the first blower 19 flows into the drain pipe 14 from the drain port 15 and passes through the drain filter 16. Then, it flows out from the outflow part 20 into the water tank 2 through the switching valve 18 and circulates. The outflow part 20 is disposed at a position where the inflow into the air blowing path 17 can be prevented even when the washing water level in the water tank 2 rises. That is, it is desirable to be above the overflow port (not shown) of the water tank 2, for example, above the rotating shaft 3a.

  Therefore, the ventilation path 17 is formed in the upward direction where the outflow portion 20 is provided via the switching valve 18. The drying air flowing through the air blowing path 17 passes through the drainage filter 16 and travels from the switching valve 18 toward the outflow part 20, the first dehumidifying part 21, the deodorizing part 22, the first air blowing part 19, and the first air blowing part 19. It passes in order of the heating unit 23. The first dehumidifying unit 21 is configured by a water-cooled or air-cooled heat exchanger or the like. The deodorizing unit 22 is composed of an adsorbent such as activated carbon or zeolite. The first heating unit 23 is composed of a heater or the like. A labyrinth seal 24 is formed between the rear surface of the drum 3 and the inside of the water tank 2. The labyrinth seal 24 is formed by fitting a plurality of annular projections that project from the rear part of the water tank 2 and the rear part of the drum 3, and allows air to flow between the drain port 15 and the outflow part 20 of the water tank 2. It is preventing.

  The control unit 25 is provided in the upper front part in the housing 1. At the top of the control unit 25, an operation display unit 30 is provided for the user to set the washing operation. As shown in FIG. 2, the control unit 25 controls the motor 8, the water supply valve 9, the drain valve 13, the switching valve 18, the first air blowing unit 19, the first heating unit 23, and the like, washing, rinsing, The washing operation is executed by sequentially controlling each step of dehydration. Furthermore, the control part 25 performs the waste_water | drain filter drying process which blows to the ventilation path 17 and dries the waste water filter 16 after completion | finish of a washing operation. Further, the control unit 25 includes an output of a cloth amount detection unit 26 that detects the amount of laundry put into the drum 3 and a water level detection unit 27 that detects the amount of washing water supplied into the water tank 2. The output and the output of the rotation detection unit 28 that detects the driving of the drum 3 are input. The control unit 25 includes a timer unit 31 that measures time.

  A door 29 that can be opened and closed is provided on the front surface of the housing 1. The user can put in and out the laundry from the opening 6 of the drum 3 by opening the door 29.

  About the washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the user opens the door 29 of the housing 1 and puts the laundry into the drum 3 from the opening 6. Then, the power switch (not shown) of the operation display unit 30 is turned on, the washing operation is set, and the start switch (not shown) is operated to start the operation. In accordance with the setting of the washing operation, the control unit 25 sequentially controls, for example, a washing process, an intermediate dehydration process, a rinsing process A, a rinsing process B, a final dehydration process (dehydration process), and a drainage filter drying process.

  A washing process is executed by the start of the washing operation. The washing process includes five subdivided operations. The control unit 25 first performs a cloth amount detection operation, and the cloth amount detection unit 26 detects the amount of laundry put into the drum 3. The amount of laundry can be detected from the torque load applied to the motor 8 when the drum 3 rotates and the current value of the motor 8 when the drum 3 rotates.

  The control unit 25 sets the time of each step such as washing, rinsing, and dehydration and the amount of washing water according to the detected amount of laundry, and the operation display unit sets the amount of detergent set according to the amount of laundry. 30. The user puts detergent into the detergent case 11 according to the amount of detergent displayed on the operation display unit 30.

  The controller 25 performs the water supply operation when the cloth amount detection operation is completed. In the water supply operation in the washing process, tap water enters the detergent case 11 through the water supply pipe 10 from the opened water supply valve 9. Then, the detergent in the detergent case 11 is further melted to flow through the water supply pipe 10 and supplied as washing water into the water tank 2 from the water supply port 12 provided in the drum 3. Washing water collected at the bottom of the water tank 2 flows into the drum 3 through the small holes 5. At this time, the switching valve 18 is switched so as to close the air passage 17 side branched from the drain pipe 14, and the drain valve 13 is closed. The control unit 25 detects the amount of the washing water accumulated in the water tank 2 with the water level detection unit 27. And if the predetermined amount of washing water preset according to the quantity of the laundry is supplied, the water supply valve 9 will be closed.

  When the water supply operation is finished, the control unit 25 performs the tapping operation. In the tapping washing, after the laundry is lifted in the rotation direction of the drum 3 by the baffle 4, the laundry falls from the upper part in the drum 3 and is struck against the laundry remaining on the bottom surface of the drum 3 or the bottom of the drum 3. This is a washing method in which washing is performed by the mechanical force together with the chemical force of the detergent. The drum 3 is driven at a rotational speed at which the laundry in the drum 3 is beaten and washed by the motor 8, for example, 45 r / min. The drum 3 is more desirable because the cleaning effect is enhanced when the drum 3 is alternately driven forward and backward for a predetermined time.

  When the washing process is finished, the control unit 25 opens the drain valve 13 to drain the washing water in the water tank 2. The washing water flows out from the drain port 15 provided at the bottom of the water tank 2 to the drain pipe 14, passes through the drain filter 16, and is discharged out of the machine through the drain valve 13 opened. When passing through the drainage filter 16, lint and foreign matters contained in the washing water are collected.

  When the drainage is completed, the control unit 25 shifts to an intermediate dehydration process, and further executes a rinse process A, a rinse process B, and a final dehydration process in this order. When the dehydration process, which is the final washing process, is finished, the laundry washing operation is finished.

  The control part 25 starts time measurement by the timer part 31 after completion | finish of the washing operation, ie, after the dehydration process which is the last process of washing | cleaning, and performs a drainage filter drying process after predetermined time progress. The predetermined time is a time required to take out the laundry in the drum 3 after the washing is completed, and is about 5 minutes, for example. As a result, the user can take out the laundry in the drum 3 before the drainage filter drying process is started after the washing operation is completed. And the control part 25 can perform a waste_water | drain filter drying process in the state in which there is no laundry in the drum 3. FIG.

In addition, it may replace with the timer part 31 and may provide the taking-out detection part (not shown) which detects taking-out of the laundry from the drum 3. FIG. The control unit 25 detects that the door 29 is opened as an operation in which the user takes out the laundry from the drum 3 by the take-out detection unit, and after detecting that the door 29 is closed again, the drain filter is dried. Execute the process. In particular, when the reserved operation is executed, it is highly likely that the user is not nearby at the end of the washing operation, and therefore it is desirable to execute the drainage filter drying process by the take-out detection unit.

  The flow of drying air in the drainage filter drying process will be specifically described. The control unit 25 drives the first blowing unit 19 to blow drying air through the blowing path 17. The blown drying air passes through the first heating unit 23 from the first blowing unit 19 and is heated. The heated drying air flows out from the outflow portion 20 into the water tank 2 and flows into the drum 3 through the inside of the labyrinth seal 24. Then, it passes through the small hole 5, passes through the outside of the labyrinth seal 24 in the water tank 2, and flows into the drainage pipe 14 from the drainage port 15 provided at the bottom.

  The drying air that has flowed into the drainage pipe 14 passes through the drainage filter 16, deprives moisture from the lint collected by the drainage filter 16, and becomes high humidity. Further, the drying air flows upward through the air supply path 17 via the switching valve 18 that is switched to flow toward the air supply path 17 branched from the drain pipe 14.

The drying air that has passed through the drainage filter 16 and has become high humidity passes through the first dehumidifying section 21 and is cooled and dehumidified. This low-temperature dry drying air passes through the deodorizing unit 22 and adsorbs odorous substances. The drying air from which the odorous substances have been removed circulates in the air blowing path 17 and the water tank 2 through the first air blowing unit 19 again.

  By performing the drainage filter drying step in this manner, the drum 3, the water tank 2, the drainage filter 16 and the air passage 17 can be dried with the heated dry warm air after the dehydration step, and left in a wet state. It will not be done.

  In particular, by drying lint and dirt substances collected by the drainage filter 16, growth of fungi, molds, etc. using the lint and dirt substances as habitats and food substances can be suppressed. Moreover, generation | occurrence | production of the unpleasant odor which is a metabolite which generate | occur | produces with microbe and mold growth can be suppressed, and the generated odor can be adsorbed and removed by the deodorizing part 22.

  When the deodorizing unit 22 is made of activated carbon, for example, as shown in the adsorption characteristic graph with respect to the humidity of the deodorizing unit in FIG. 3, the amount of adsorption decreases as the relative humidity increases. Further, as shown in the adsorption characteristic graph with respect to the temperature of the deodorizing unit in FIG. 4, the adsorption amount decreases as the temperature increases. In the present embodiment, the first dehumidifying unit 21 is provided on the downstream side of the drainage filter 16 and on the upstream side of the deodorizing unit 22. As a result, the low-temperature dry air that has been cooled and dehumidified passes through the deodorizing unit 22. For this reason, the deodorizing part 22 can exhibit a deodorizing performance effectively with the temperature and humidity excellent in the adsorption | suction characteristic.

  Further, a heating unit 23 is provided on the downstream side of the deodorizing unit 22, and the air that has passed through the deodorizing unit 22 is heated by the heating unit 23 and blown to the drainage filter 16. For this reason, it can blow to the waste_water | drain filter 16 without heating the deodorizing part 22 with the air heated at high temperature, and can improve the adsorption | suction characteristic of an odorous substance. The deodorizing unit 22 can prevent an unpleasant odor from being accumulated in the water tank 2 and the drum 3 communicating with the drainage filter 16 even when the door 29 is closed after use.

As described above, the washing machine of the present embodiment branches from the middle of the drainage path including the drainage filter 16 and is connected to the outflow part 20 of the water tank 2 and the first provided in the ventilation path 17. 1, and a control unit 25 that executes a washing operation. The control unit 25 drives the first blower 19, and the air in the water tank 2 passes through the drainage filter 16 in the water tank 2. The drainage filter drying step is performed to dry the drainage filter 16 by circulation. Thereby, after completion of the washing operation, the drainage filter 16 wet with the drainage of the washing water can be dried, and the generation of unpleasant odor can be suppressed.

  Moreover, the control part 25 is comprised so that a drainage filter drying process may be performed after the spin-drying | dehydration process included in a washing operation. Thereby, in the dehydration process, the water separated from the laundry is discharged from the drum 3 and the water tank 2 through the drainage path to the outside of the machine. With the progress of the dehydration of the laundry, water stops flowing through the drainage path, and the drainage filter 16 can be efficiently dried.

  Moreover, the control part 25 has the timer part 31 which measures time, and is comprised so that a drainage filter drying process may be performed after predetermined time, after starting a time measurement after complete | finishing a dehydration process. Thus, after the dehydration process is completed, the drainage filter drying process can be performed after the laundry in the drum 3 is taken out, and the time that the drainage filter 16 is left in a wet state can be shortened. And can be dried.

  Further, the deodorizing part 22 is disposed in the air blowing path 17 on the downstream side of the drainage filter 16. Thereby, the odor generated in the drainage filter drying step can be eliminated.

  Further, the deodorizing unit 22 is disposed in the air blowing path 17 on the downstream side of the dehumidifying unit 21. As a result, the cooled and dehumidified air passes through the deodorizing unit 22, so that the deodorizing unit 22 enhances the adsorption characteristics of odorous substances at a temperature and humidity excellent in adsorption characteristics, and effectively deodorizes performance. Can be demonstrated.

  In addition, a heat pump apparatus may be provided, the 1st dehumidification part 21 may be comprised with an evaporator, and the 1st heating part 23 may be comprised with a condenser.

(Embodiment 2)
FIG. 5 is a schematic configuration diagram of a washing machine having a drying function according to Embodiment 2 of the present invention. FIG. 6 is an enlarged view of the air path switching unit of the washing machine in the present embodiment. FIG. 7 is a system diagram of the washing machine in the present embodiment. FIG. 8 is a block configuration diagram of the washing machine according to the present embodiment. The feature of the washing machine in the present embodiment is that it has a drying function for drying the laundry in the drum 3 after the washing operation up to the dehydration process is completed. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  5-8, the control part 25 controls a drying process in addition to each process of washing | cleaning, a rinse, and spin-drying | dehydration. The user can execute the drying process in the same drum 3 following the dehydration process within the same drum 3. Further, the user can put the laundry into the drum 3 and execute only the drying process.

  The washing machine in the present embodiment has a drying air flow path for circulating the air in the drum 3 through the second dehumidifying unit 32 and the second heating unit 33 into the drum 3 by the second air blowing unit 40 as a drying function. 34 is provided. Furthermore, a heat pump device 35 is provided in the drying air passage 34, an evaporator of the heat pump device 35 is configured as the second dehumidifying unit 32, and a condenser is configured as the second heating unit 33.

The heat pump device 35 is connected by a pipe 39 so that the refrigerant circulates through the compressor 36, the condenser (second heating unit 33), the throttle unit 37, and the evaporator (second heating unit 32). Yes. The heat of the gas refrigerant compressed to high temperature and high pressure by the compressor 36 is dissipated and liquefied by the condenser, and the high pressure liquid refrigerant exiting the condenser is depressurized by the throttle unit 37 to become low temperature and low pressure. Heat is taken from the drying air to become a gas refrigerant and return to the compressor 36.

  In the present embodiment, the drying air passage 34 and the air passage 17 merge before the outflow portion 20 to the water tank 2, and an air passage switching portion 41 is provided at the confluence portion. The air path switching unit 41 switches so that one of the dry air path 34 and the air path 17 communicates with the outflow part 20.

  As shown in FIG. 6, the control unit 25 switches the air path switching unit 41 to the (a) side during the drying process, and drives the second air blowing unit 40. As a result, the drying air flows from the drying air passage 34 to the outflow portion 20 as indicated by an arrow A.

  That is, the drying air that has flowed into the drying air passage 34 from the inflow portion 42 provided in the upper front portion of the water tank 2 passes through the second dehumidifying portion 32, is cooled and dehumidified, and the second heating portion 33 Is heated through. The heated drying air flows out from the outflow section 20 into the water tank 2 through the air path switching section 41, and flows into the drum 3 through the inside of the labyrinth seal 24. The drying air flowing into the drum 3 takes moisture from the wet laundry and becomes high humidity. Then, after passing through the small hole 5 and the outside of the labyrinth seal 24 in the water tank 2, it again flows into the drying air passage 34 from the inflow part 42 provided at the upper front part of the water tank 2, Passed through, cooled and dehumidified. In this manner, the drying air circulates in the drying air passage 34 and the water tank 2, thereby allowing the laundry in the drum 3 to be dried.

  Further, the drainage filter drying process is performed after the drying process is performed. The control unit 25 switches the air path switching unit 41 to the (b) side during the drainage filter drying process, and drives the first blower unit 19. As a result, the drying air flows from the drying air passage 34 to the outflow portion 20 as indicated by an arrow B.

  The flow of the drying air in this drainage filter drying step is the same as that described in the first embodiment. That is, the drying air that has flowed into the drainage pipe 14 from the drainage port 15 by driving the first blower 19 passes through the drainage filter 16, and then passes through the switching valve 18, the dehumidifying unit 21, the deodorizing unit 22, It passes through the first air blowing unit 19 and the heating unit 23. Then, the air flows into the drum 3 from the outflow portion 20 through the air path switching portion 41 and circulates to advance the drying of the drainage filter 16. Moreover, the control part 25 may start time measurement by the timer part 31 after completion | finish of a drying process, and may be made to perform a waste_water | drain filter drying process after progress for a predetermined time.

  Even in a washing machine having a drying function, when only the washing operation is performed without performing the drying step, the drainage filter drying step is performed after the dehydration step, which is the final step of the washing operation. In addition, the control unit 25 starts the time measurement by the timer unit 31 after the washing operation is finished, that is, after the dehydration process as the final washing process is finished, and executes the drainage filter drying process after a predetermined time has elapsed. May be.

  As described above, the washing machine of the present embodiment is provided in the drying air passage 34 having the inflow portion and the outflow portion in the water tank 2 and drying the laundry in the drum 3, and the drying air passage 34. The control part 25 drives the 2nd ventilation part 40 after the spin-drying | dehydration process included in a washing operation, and the air in the water tank 2 is supplied to the water tank 2 via the dry ventilation path 34. It is configured to execute a drying process in which the laundry in the drum 3 is dried by being circulated inside. As a result, the drainage filter 16 wet with the drainage of the washing water can be dried after the end of the washing operation or the end of the drying process according to the driving course, thereby suppressing the generation of unpleasant odors. Can do.

  Moreover, the control part 25 is comprised so that a drainage filter drying process may be performed after a drying process. As a result, the moisture released from the laundry by the drying process does not flow through the drainage filter through the drainage filter, and the drainage filter drying process is performed after the water tank becomes dry, so that the drainage filter can be efficiently dried. it can.

  In addition, the drying air passage 34 and the air passage 17 are joined before the outflow portion to the water tank, and the air passage switching portion 41 that switches so that any one of the joined passages communicates with the outflow portion 20 is provided. The control unit 25 is configured to switch the air path switching unit 41 so that the drying air passage 34 communicates during the drying process, and to switch the air path switching unit 41 so that the air passage 17 communicates during the drainage filter drying process. Is. Thereby, it is not necessary to provide a plurality of outflow portions 20 in the water tank 2, and the configuration and switching of the water tank 2, the drying air path 34, and the air path 17 can be rationally performed.

  Further, the control unit 25 has a timer unit 31 for measuring time, and is configured to start time measurement after finishing the dehydration process or drying process and to execute the drainage filter drying process after a predetermined time. is there. Accordingly, after the drying process is finished, the laundry filter drying process can be performed after the laundry in the drum 3 is taken out, and the time for which the drainage filter 16 is left in a wet state can be shortened. And can be dried.

  In the present embodiment, the air path switching valve 41 is provided and the air flow path 17 and the outflow part 20 of the dry air flow path 34 are combined. However, the present invention is not limited to this, and the air path switching valve 41 is not limited thereto. The outflow part 20 may be provided in each path | route, without using.

(Embodiment 3)
FIG. 9 is a system diagram of the washing machine according to Embodiment 3 of the present invention. A feature of the washing machine of the present embodiment is that, with respect to the second embodiment, a third heating unit 44 is provided between the air path switching unit 41 and the outflow unit 20, and the drying air passage 34 or the air passage 17 is provided. The passed air is heated by the third heating unit 44. Other configurations except the heating unit are the same as those of the second embodiment, the same reference numerals are given to the same configurations, and the detailed description uses those of the first and second embodiments.

  In the drainage filter drying process after the dehydration process or the drying process is completed, the control unit 25 switches the air path switching unit 41 so that the air flow path 17 communicates with the outflow part 20 and drives the first air blowing unit 19. . The drying air flowing into the drain pipe 14 from the drain port 15 passes through the drain filter 16 and then passes through the switching valve 18 to the first dehumidifying unit 21, the deodorizing unit 22, the first blower unit 19, and the air path switching. It passes through the third heating part 44 via the part 41 and flows into the water tank 2 from the outflow part 20 and circulates.

  On the other hand, in the drying process of drying the laundry in the drum 3, the control unit 25 switches the air path switching unit 41 so that the drying air path 34 communicates with the outflow unit 20 and drives the second air blowing unit 40. . The drying air that has flowed into the drying air path 34 from the inflow part 42 passes through the third heating part 44 via the second dehumidifying part 32, the second air blowing part 40, and the air path switching part 41, and then flows into the outflow part 20. From the water tank 2 and then into the drum 3 for circulation.

  According to said structure, the heating of the drying air at the time of a drying process and the heating of the air for drying at the time of a waste_water | drain filter drying process can be efficiently heated by using the 3rd heating part 44 together.

In addition, the 3rd heating part 44 is comprised with the condenser of a heater or a heat pump apparatus. When the 3rd heating part 44 is comprised with a heater, the 1st dehumidification part 21 provided in the ventilation path 17 and the 2nd dehumidification part 32 provided in the dry ventilation path 34 are water cooling type or an air cooling type. Consists of heat exchangers. On the other hand, when the 3rd heating part 23 is comprised with the condenser of a heat pump apparatus, either one or both of the 1st dehumidification part 21 and the 2nd dehumidification part 32 are comprised with the evaporator of the heat pump apparatus. The

(Embodiment 4)
FIG. 10 is a system diagram of the washing machine in the fourth embodiment of the present invention. The feature of the washing machine of the present embodiment is that the air flow path 17 is connected to the air flow path switching unit 41 immediately after the inflow portion 42 of the dry air flow path 34 in the second embodiment. That is, the air blowing path 17 also serves as the drying air blowing path 34 and its drying function, and most of the dry air blowing path 34 becomes the air blowing path 17 in the drainage filter drying process. Other configurations are the same as those of the second embodiment, and the same reference numerals are given to the same configurations, and the detailed description uses those of the first and second embodiments.

  In the drainage filter drying process after the dehydration process or the drying process is completed, the control unit 25 switches the air path switching unit 41 so that the air passage 17 communicates with the drying air path 34 and drives the second air blowing unit 40. To do. The drying air that has flowed into the drain pipe 14 from the drain port 15 passes through the drain filter 16 and then passes through the switching valve 18 to the second dehumidifying unit 32, the deodorizing unit 22, the second heating unit 33, and the second heating unit 33. It flows into the water tank 2 from the outflow part 20 through the air blowing part 40 and circulates.

  On the other hand, in the drying process of drying the laundry in the drum 3, the control unit 25 switches the air path switching unit 41 so that the air blowing path 17 is closed and the dry air blowing path 34 communicates with the outflow part 20. The air blower 40 is driven. The drying air that has flowed into the drying air passage 34 from the inflow portion 42 passes through the second dehumidifying portion 32, the deodorizing portion 22, the second heating portion 33, and the second air blowing portion 40 from the outflow portion 20 into the water tank 2. And then flows into the drum 3 and circulates.

  According to the above configuration, the dehumidification and heating of the drying air during the drying step and the dehumidification and heating of the drying air during the drainage filter drying step are performed by the second dehumidifying unit 32, the second heating unit 33, and the second dehumidifying unit 32. It is possible to efficiently perform the drainage filter drying process and the drying process by using the two air blowing units 40 in common. In addition, about the deodorizing part 22, you may be comprised so that it may be bypassed at the time of a drying process.

(Embodiment 5)
FIG. 11 is an enlarged view of a main part of the washing machine according to the fifth embodiment of the present invention. The feature of the washing machine of the present embodiment is that the outflow portion 20 of air from the air blowing path 17 into the water tank 2 is formed outside the labyrinth seal 24 in the first embodiment. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  When the control unit 25 drives the first air blowing unit 19, the drying air that has passed through the drainage filter 16 flows out into the water tank 2 from the outflow unit 20 provided outside the labyrinth seal 24. Then, it passes through the gap between the water tank 2 and the drum 3 outside the labyrinth seal 24, reaches the drain port 15 without passing through the drum 3, flows into the drain pipe 14 and circulates.

  According to said structure, the drying air which flowed out to the water tank 2 from the ventilation path 17 can be made to flow in into the drain piping 14 from the drain port 15 without passing through the inside of the drum 3, and it dries at the time of a drain filter drying process. The air can be circulated efficiently and quickly.

  Note that the present invention can be implemented by appropriately combining at least a part of the respective embodiments as necessary. For example, it is possible to combine the drying function of the second embodiment, and in this case, the outflow portion 20 of the drying air passage 34 is formed inside the labyrinth seal 24.

  As described above, the washing machine according to the present invention is useful as a washing machine because the drainage filter can be dried after the operation is completed and the generation of unpleasant odor can be suppressed.

1 Housing 2 Water tank 3 Drum (inner tank)
8 Motor 9 Water supply valve (Water supply path)
10 Water supply piping (water supply route)
13 Drain valve (drainage route)
14 Drainage piping (drainage route)
16 Drainage filter (drainage route)
DESCRIPTION OF SYMBOLS 17 Air supply path 19 1st air blower part 20 Outflow part 22 Deodorant part 24 Labyrinth seal 25 Control part 31 Timer part 34 Drying air supply path 40 2nd air blower part 41 Air path switch part 42 Inflow part

Claims (11)

A water tank provided in the water tank; a water tank provided in the water tank; an inner tank rotatably provided in the water tank; a motor that rotationally drives the inner tank; a water supply pipe; and a water supply valve. A water supply path for supplying water, a drainage pipe, a drainage valve, and a drainage filter, connected to the bottom of the aquarium and draining washing water in the aquarium out of the machine, and the drainage including the drainage filter A blower path branched from the middle of the path and connected to the outflow part of the water tank, a first blower part provided in the blower path, and a control part for executing a washing operation, A washing machine configured to execute a drainage filter drying step of driving the first air blowing unit and circulating the air in the water tank through the drainage filter into the water tank to dry the drainage filter. . The washing machine according to claim 1, wherein the control unit is configured to execute the drainage filter drying step after a dehydration step included in the washing operation. The control unit includes an inflow portion and an outflow portion in the water tub, and a drying air passage that dries the laundry in the inner tub, and a second air blowing portion provided in the dry air passage. After the dehydration step included in the washing operation, the second air blowing unit is driven, and the air in the water tank is circulated into the water tank via the drying air flow path to dry the laundry in the inner tank. The washing machine according to claim 1, wherein the washing machine is configured to perform a drying step. The washing machine according to claim 3, wherein the control unit is configured to execute the drainage filter drying step after the drying step. The control unit includes an air path switching unit that switches between the dry air blowing path and the air blowing path before the outflow part to the water tank, and switches any one of the joined paths to communicate with the outflow part. Is configured to switch the air path switching unit so that the dry air flow path communicates during the drying process, and to switch the air path switching unit so that the air flow path communicates during the drainage filter drying process. Item 5. A washing machine according to Item 3 or 4. A heating unit is provided between the outflow unit and the air path switching unit, and the control unit heats air that has passed through the drainage filter by the heating unit in the drainage filter drying step. The washing machine according to any one of 5. The air flow path includes a wind path switching unit that merges immediately after the inflow portion of the dry air flow path and switches so that any one of the merged paths communicates with the outflow portion, and the control unit includes the drying unit 5 or 4 is configured to switch the air path switching unit so that the dry air path is communicated during the process, and to switch the air path switching unit so that the air path is communicated during the drainage filter drying process. The washing machine described. The washing machine according to any one of claims 1 to 4, wherein the blowing path is provided with the outflow portion outside a labyrinth seal. The said control part has a timer part which measures time, and started the time measurement after finishing the said dehydration process or the said drying process, It is comprised so that the said waste_water | drain filter drying process may be performed after the predetermined time. The washing machine according to any one of 2 to 8. The washing machine according to any one of claims 1 to 9, wherein a deodorizing unit is provided in the air blowing path, and the deodorizing unit is disposed on the downstream side of the drainage filter. The washing machine according to claim 10, wherein a dehumidifying part is provided in the blowing path, and the deodorizing part is disposed on the downstream side of the dehumidifying part.

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