JP2012217534A - Drum-type washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drum-type washing and drying machine that allows suppression of pressure fluctuation within a water tub caused by oscillation of the water tub.SOLUTION: A drum-type washing and drying machine includes a filter device 300 for collecting yarn wastes and the like contained in air from a warm air intake port; and an air blowing and heating path 203 in communication with the filter device 300 and including air blowing means 204 and heating means 205 therein. The yarn waste collecting filter device 300 is provided with a pressure release hole 326 for suppressing pressure fluctuation within a water tub 102 caused by oscillation of the water tub 102 and a check valve 327 for shutting off air in a drying step. This allows the suppression of the pressure fluctuation within the water tub 102, to prevent the pressure within the water tub 102 from becoming too high, which can prevent a disadvantage caused by a high pressure applied on a seal portion within the water tub 102 and a drying circulation path.

Description

  The present invention relates to a drum-type washing / drying machine for washing and drying clothes in a rotary drum.

  Conventionally, this type of drum type washing and drying machine is configured as shown in FIGS. Hereinafter, the configuration will be described.

  The rotating drum 1 is formed in a bottomed cylindrical shape, and a plurality of water passage holes 2 are provided on the entire surface of the rotating drum 1. The rotating drum 1 is rotatably disposed in the water tank 3. The rotary drum 1 is driven to rotate in the forward and reverse directions by a motor 4. A plurality of protruding plates 5 are provided on the inner wall surface of the rotating drum 1.

  An opening provided on the upward inclined surface on the front side of the water tub 3 is covered with a lid 6 so as to be freely opened and closed. By opening the lid 6, the laundry can be taken in and out of the rotary drum 1 through the clothing entrance 7. .

  The aquarium 3 is suspended from the washing machine body 8 by a spring body 9 and a damper 10 so as to be swingable. One end of a drainage path 11 is connected to the lower part of the aquarium 3 and the other end of the drainage path 11 is connected to a drain valve 12. The washing water in the aquarium 3 is drained by connecting to. The water supply valve 13 supplies water into the water tank 3 through the water supply path 14.

  The drying function includes a heating means 16, a blower fan 17, and a hot air blowing path 18, a hot air intake 19 for taking in air in the water tank 3 is provided on the upper surface of the water tank 3, and a heat exchanger 21 is provided in the dehumidifying unit 20. The warm air blowing port 22 is provided on the back surface of the washing machine body 8, and the air in the water tub 3 is heated and circulated in the direction of arrow C to dry the laundry.

  A drying filter 23 that collects yarn waste generated during the drying operation is disposed in front of the blower fan 17 in the drying circulation path. As a result, yarn waste or the like is prevented from accumulating on the blower fan 17 or the heating means 16. The drying filter 23 is disposed on the upper surface of the washing machine body 8 so that the user can easily attach and detach it.

  The control device 24 has a microcomputer and controls operations of the motor 4, the drain valve 12, the water supply valve 13, the blower fan 17, the heating means 16, and the like, and sequentially performs a series of steps such as washing, rinsing, dehydration, and drying. Control.

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

  When the lid 6 is opened and the laundry is put into the rotary drum 1 and the operation is started, the water supply valve 13 is driven to supply the washing water into the water tank 3 in the washing process. When the water level of the washing water reaches a predetermined water level, the driving of the water supply valve 13 is stopped and the water supply is terminated. Thereafter, the rotating drum 1 is rotated at a low speed by the motor 4, and the laundry in the rotating drum 1 is lifted and dropped onto the water surface. Thus, the washing process proceeds.

  After performing the washing process for a predetermined time, the drain valve 12 is driven to drain the washing water in the water tub 3, perform intermediate dehydration, and perform the subsequent rinsing process. In the rinsing process, the same operation as in the washing process is performed. In the dehydration process, the rotary drum 1 is rotationally driven at a high speed, and the laundry is dehydrated by centrifugation.

  Then, it transfers to a drying process. In the drying process, when the laundry is put into the rotary drum 1 and the drying process is started, the blower fan 17 and the heating means 16 are driven by the control device 24, and the water tank 3, the hot air intake 19, and the hot air blowing path 18 are driven. Hot air circulates through a series of paths that pass through. Further, the water supply valve 13 is operated to supply water into the dehumidifying unit 20, water is scattered at the lower end of the heat exchanger 21, contacted with wet hot air to exchange heat, and dehumidification is performed (for example, Patent Document 1). reference).

  Moreover, there exists a thing provided with the non-return valve between the water supply apparatus and the water tank in order to make the airtightness in a water tank high. The check valve is provided, for example, between the water supply path and the water tank, and when the water is supplied, the valve opens with the flow of water, but does not open in the reverse direction. By providing a check valve, when a large amount of bubbles is generated in the washing process, the bubbles are prevented from reaching the outside of the water tank. Further, in the drying process, drying circulation air is prevented from leaking out of the water tank.

JP 2009-82318 A

  However, when the water tank swings greatly at the start of dehydration, when the water tank moves from the center of amplitude to the peak amplitude, air is sucked from a check valve disposed between the water supply path and the water tank. Next, when trying to exhale the air sucked when returning from the peak amplitude to the center, the check valve functions, so there is no air escape space in the water tank, and the pressure in the entire water tank becomes high. The dry filter portion is not configured to seal against internal pressure. For this reason, when the internal pressure increases and exceeds a certain limit, there is a problem that the dry filter part floats. When the dry filter part floats, air may leak out and abnormal noise may occur. Moreover, if the dry filter part floats, the lint collected by the dry filter will blow out. In addition, when the amount of laundry is small or when entangled clothes are dehydrated, the aquarium tends to shake greatly, and the limit amplitude at which air in the aquarium escapes to the outside due to fluctuations in internal pressure at that time is a constraint, and more In some cases, the water tank cannot be shaken at an amplitude of 5 mm, which hinders the improvement of the dehydration start probability. On the other hand, if the fitting in the gap between the parts is closed so that the drying filter does not float, the operation of attaching and detaching the drying filter becomes hard, and it is difficult for the user to operate when cleaning the filter. It was.

  An object of the present invention is to solve the above-described conventional problems, and to provide a drum-type washing and drying machine capable of releasing the pressure in the water tank due to the swinging of the water tank.

In order to solve the above-described conventional problems, a drum-type washing and drying machine of the present invention is provided with a swingable water tank and a rotatable rotation in the water tank, and the rotation center axis is horizontal or from the front side to the back side. Rotating drum inclined downward, motor for driving the rotating drum, hot air intake port for taking in air in the rotating drum, and collecting lint contained in air from the hot air intake port A filter device that communicates with the filter device and has a blower heating path and a heating means inside, a blower port that blows air from the blower heating path into the rotary drum, the motor, and the heating means Control means for controlling washing, rinsing, dehydration, and drying processes, etc., and the filter device is provided at a position where a negative pressure is applied during ventilation in the drying process. To include a check valve covering the hole and the hole air passes,
The check valve is configured to open to the outside of the filter device.

  This allows the user to easily clean the filter without closing the fitting between parts, and even if the water tank swings greatly during dehydration, the pressure in the water tank can be effectively released to effectively reduce the pressure. Can be suppressed from becoming too high. As a result, the probability of dehydration activation can be improved, and shortening the washing time can improve the energy saving performance and also improve the reliability of the drum type washing and drying machine.

  The drum type washing and drying machine of the present invention is provided with a pressure release hole and a check valve for releasing pressure in the water tank by swinging the water tank in a filter device that collects lint and the like during the drying operation. The pressure in the water tank is released, the pressure in the water tank is prevented from becoming too high, and problems due to the high pressure applied to the seal portions in the water tank and the drying circulation path can be prevented.

Side sectional view of the drum-type washing and drying machine according to Embodiment 1 of the present invention. Side view of the drum-type washing and drying machine Side sectional view of the lint-collecting filter device of the drum-type washer / dryer Side sectional view of the upper unit Side sectional view of the lower unit Block diagram of the drum-type washer / dryer Side view of a conventional drum-type washing and drying machine Side view of the drum-type washing and drying machine

  A drum-type washing and drying machine according to a first aspect of the present invention includes a swingable water tub, a rotating drum that is rotatably disposed in the water tub, and whose rotation center axis is inclined horizontally or downward from the front side to the back side; A motor for rotationally driving the rotary drum; a hot air intake port for taking in air in the rotary drum; a filter device for collecting lint contained in air from the hot air intake port; and the filter device A blower heating path having a blowing means and a heating means inside, a blower opening for blowing air from the blower heating path into the rotary drum, and controlling the motor and the heating means to wash and rinse And a control means for controlling the dehydration and drying process, and the filter device is provided at a position where a negative pressure is generated when air is blown in the drying process. The filter device has a hole and a hole through which air passes. Comprises a check valve covering the hole, said check valve is obtained by a structure that opens to the outside of the filter device.

  With such a configuration, even when the water tank swings greatly and the pressure in the water tank fluctuates greatly, the pressure fluctuation can be suppressed by effectively releasing the pressure. It is possible to improve the reliability of the seal portion by preventing problems caused by high pressure applied in the water tank and the drying circulation path. In addition, since the water tank can be greatly swung, dehydration can be easily started, leading to a reduction in washing time and energy saving performance.

  In the second invention, in particular, the drum-type washing and drying machine is provided with a plurality of the holes and the check valves.

  With such a configuration, since the opening area of the valve for releasing the pressure in the water tank can be increased, the pressure can be effectively released even when the water tank is largely swung.

  Embodiment 1 of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 and 2 are side sectional views of the drum type washer / dryer according to Embodiment 1 of the present invention.

  In FIG. 1, the rotating drum 100 is formed in a bottomed cylindrical shape. A plurality of through holes 101 that allow water to flow and vent are provided on the entire outer periphery of the rotating drum 100. In the water tank 102, the rotary drum 100 is rotatably arranged. A rotation axis (rotation center axis) 103 is provided in the inclination direction at the rotation center of the rotary drum 100, and the rotation axis 103 is inclined downward from the front side toward the back side. A motor 104 attached to the rear surface of the water tank 102 is connected to the rotating shaft 103, and the rotating drum 100 is driven to rotate in the forward and reverse directions by the motor 104. Several protruding plates 105 are provided on the inner wall surface of the rotating drum 100.

  An opening 107 provided on the upward inclined surface of the main body 106 on the front side of the water tank 102 is covered with a lid 108 so as to be openable and closable. By opening the lid 108, rotation is performed through the opening 107 and the clothing entrance 109 of the rotary drum. The laundry is put in the drum 100 so that the laundry can be taken out from the rotary drum 100. Since the lid body 108 is provided on the upward inclined surface, the user can reduce the degree of bending his / her waist when putting in and out the laundry.

  The water tank 102 is suspended from the main body 106 by a spring body 110 and a damper 111 so as to be swingable. A drain port 112 is provided near the back side of the inner bottom of the water tank 102, one end of the drain channel 113 is connected to the drain port 112, and the other end of the drain channel 113 is connected to a drain valve (drain unit) 114. The washing water in the water tank 102 is drained. In FIG. 2, a water supply valve (water supply means) 115 supplies washing water into the water tank 102 through the detergent case 116 and the water supply path 117. The water supply check valve 119 is disposed between the detergent case 116 and the water supply path 117. When water is supplied, the water supply check valve 119 is in the opening direction (arrow D).

  The drying function includes a hot air intake port 200, a heat exchanger 201, an exhaust port 202, a lint collection filter device (filter device) 300, a blower heating path 203, a blower fan (blower unit) 204, a heater (heating unit) 205, The hot air blowing path 206 and the blowing port 207 are configured to form a drying circulation path.

  The configuration of the lint collecting filter device 300 will be described with reference to FIGS. 3, 4, and 5. FIG. 3 is a side sectional view of the lint collecting filter device of the drum type washing and drying machine in the first embodiment of the present invention. FIG. 4 is a side sectional view of the upper unit according to Embodiment 1 of the present invention. FIG. 5 is a side sectional view of the lower unit according to Embodiment 1 of the present invention.

  The lint collecting filter device 300 includes an upper unit 310 and a lower unit 320 disposed below the upper unit 310. The lower unit 320 is fixed inside the main body 106, while the upper unit 310 is easily removed from the main body 106.

  The upper unit 310 includes an upper filter unit 311. The upper filter unit 311 is adjacent to the lower filter unit 321. Further, the upper filter portion 311 is in contact with the lower filter portion 321 substantially in parallel.

  The lower unit 320 includes a housing 322 for housing the upper unit 310. The housing 322 includes a right side wall 324 in which a substantially cylindrical inflow port 323 that protrudes toward the bellows pipe 400 is formed, and a left side wall 325 that faces the right side wall 324. The dry air flows into the lint collecting filter device 300 through the bellows pipe 400 and the inlet 323.

  The lower unit 320 further includes a lower filter portion 321 connected to the right side wall 324 and the left side wall 325. The lower filter portion 321 divides the internal space formed by the housing 322 into an upper space US communicating with the inflow port 323 and a lower space LS adjacent to the upper space US. The dry air that flows in from the inflow port 323 flows into the upper space US and then reaches the lower space LS formed below the upper space US.

  An upper unit 310 is accommodated in the upper space US. The dry air that has flowed from the inflow port 323 flows into the upper unit 310 disposed in the upper space US. The dry air that has flowed into the upper unit 310 flows in the first direction FD toward the left side wall 325.

  A connection portion between the lower filter portion 321 and the left side wall 325 is formed above a connection portion between the lower filter portion 321 and the right side wall 324. Accordingly, the lower filter portion 321 and the upper filter portion 311 in contact with the lower filter portion 321 are inclined with respect to the flow of dry air in the first direction FD (in FIG. 3, 0 ° <θ <90 ° ( θ is an inclination angle of the upper filter portion 311 with respect to the first direction FD)).

  The lower filter unit 321 and the upper filter unit 311 remove lint from dry air flowing from the upper space US toward the lower space LS. Since the lower filter part 321 and the upper filter part 311 are inclined with respect to the flow of the dry air in the first direction FD, a relatively wide area for removing lint is secured. In the present embodiment, the upper filter portion 311 and the lower filter portion 321 are exemplified as a lint collecting filter element.

  In the lower space LS of the lower unit 320, a plurality of pressure relief holes 326 for releasing pressure are opened. The pressure relief hole 326 suppresses pressure fluctuation in the water tank 102 due to the swinging of the water tank 102. Since the lower space LS passes through the lower filter portion 321, yarn waste or the like does not come out of the lower unit 320 from the pressure release hole 326.

  A rubber check valve 327 is disposed so as to cover the pressure release hole 326. An arrow G is a direction in which the check valve 327 is opened, and an arrow F is a direction in which the check valve 327 is closed.

  The control device 150 is configured as shown in FIG. 6, has a control means 151 constituted by a microcomputer, and has a motor 104, a drain valve (DV) 114, and a water supply valve (FV) via a power switching means 152. 115, the operation of the heater 205 and the like are controlled, and a series of steps of washing, rinsing, dehydration and drying are sequentially controlled.

  The control unit 151 inputs information from the input setting unit 153 for setting a driving course and the like, and displays the information on the display unit 154 based on the information to notify the user. The storage unit 155 stores data necessary for control by the control unit 151. Reference numeral 156 denotes a commercial power source and 157 denotes a power switch.

  The operation of the above configuration will be described. The lid 108 is opened, the laundry is put into the rotating drum 100, a predetermined amount of detergent is put into the detergent case 116, and then the operation is started. First, a washing process is performed. In the washing process, the water supply valve 115 is operated to supply the washing water, and the washing water passes through the detergent case 116 and the water supply path 117 and enters the water tank 102 together with the detergent. After supplying water to a predetermined water level, the rotating drum 100 is controlled to start up to a first predetermined rotation speed (for example, 45 r / min), and a washing operation for repeating normal rotation, pause, inversion, and pause operations for a predetermined time. Execute. In addition, the laundry accommodated in the rotating drum 100 is lifted in the rotating direction by the protruding plate 105 provided on the inner peripheral wall of the rotating drum 100 by the rotation of the rotating drum 100 at this time, and the appropriate height is raised. Since the agitating operation of dropping from the position is repeated, the laundry has the effect of tapping and washing.

  After performing this washing operation for a predetermined time, the washing process is terminated and the first drainage process is executed. In the first draining process, the drain valve 114 operates to drain the water. At this time, the washing water in the water tank 102 is drained outside the machine through the drain port 112, the drain valve 114, and the drain path 113. Thereafter, the process proceeds to the first dehydration step.

  In the first dehydration step, the rotating drum 100 is raised to a second predetermined rotation speed (for example, 800 r / min) and rotated at a second predetermined rotation speed for a predetermined time, so that the washing water contained in the laundry is discharged. Dehydrate. By the time the second predetermined rotation speed is reached, the resonance point of the water tank 102 is passed. At that time, a large pressure fluctuation occurs in the water tank 102 as the water tank 102 swings greatly. When the water tank 102 shakes greatly and moves from the center of the amplitude to the peak amplitude, the water supply check valve 119 opens and sucks air into the water tank 102. Next, when the water tank 102 returns to the center position of the amplitude, it tries to exhale the sucked air. However, since the water supply check valve 119 is closed, the air is compressed and the internal pressure rises. At this time, the pressure can be released from the pressure release hole 326 provided in the lower unit 320 of the lint collecting filter device 300 connected to the water tank 102 through the drying path. The check valve 327 provided in the lint collection filter device 300 opens and functions in the direction of arrow G (outward of the filter device 300), so that the pressure in the water tank 102 can be released and pressure fluctuation is suppressed. be able to.

  After the first dehydration step is performed for a predetermined time, the water supply valve 115 is operated, the washing water is poured into the water tank 102 via the detergent case 116 and the water supply path 117, and the first rinsing step is performed. In the first rinsing step, the rotation speed of the rotating drum 100 is set to a third predetermined rotation speed (for example, 40 r / min), and the normal rotation, pause, reverse, and pause operations are repeated. The washing operation is performed for a predetermined time in which the laundry is lifted in the rotation direction by the protruding plate 105 provided on the inner peripheral wall of the rotary drum 100 and the stirring operation of dropping from the raised appropriate height position is repeated for a predetermined time.

  Thereafter, the second draining process is executed in the same manner as the first draining process, and after the second dehydrating process is executed in the same manner as in the first dehydrating process, the second rinsing process is executed in the same manner as in the first rinsing process. Furthermore, a 3rd drainage process is performed similarly to a 1st drainage process and a 2nd drainage process, and a final dehydration process is performed.

  In the drying process, the air in the rotating drum 100 is discharged from the through hole 101 formed in the outer peripheral surface of the rotating drum 100 to the space formed between the water tank 102 and the rotating drum 100 by the rotation of the blower fan 204. Then, it flows in into the heat exchanger 201 from the warm air intake 200 provided in the lower back of the water tank 102. A water injection hose 500 is disposed in the heat exchanger 201, and water injected by opening the water injection valve 501 is sprinkled from the water injection hose 500 into the heat exchanger 201. Therefore, the water is discharged into the heat exchanger 201. The air containing the humidified moisture is cooled and dehumidified. The air dehumidified by the heat exchanger 201 passes through the lint collecting filter device 300, enters the blower heating path 203, is guided in front of the water tank 102, flows into the blower heating path 203, and is heated by the heater 205. . Thereafter, the air is sent to a hot air blowing path 206 provided in front of the water tank 102, and is blown into the water tank 102 from an air outlet 207 provided in the upper front part of the water tank 102. Since the air blown into the water tank 102 flows into the rotary drum 100 from the through hole 101 formed in the bottom surface of the rotary drum 100, moisture is taken away from the laundry by the dehumidified and heated air, and the rotation of the rotary drum 100 is performed. The drying of all the laundry is promoted by the agitation, and the laundry is dried by repeating this air circulation for a predetermined time.

  In the above configuration, the water tank 102 and the series of drying paths are required to be sealed. If a large amount of circulating air containing moisture leaks out of the water tank 102, the reliability of the washing machine components will be reduced. In addition, the humidity at the place where the washing machine is installed also increases.

  In the lower space LS of the lower unit 320 in the drying path, a plurality of pressure relief holes 326 for releasing pressure are provided. During the drying operation, the blower fan 204 is arranged so that the yarn waste collecting filter device 300 is at a negative pressure, and the check valve 327 is closed (arrow F), so that the drying circulation air leaks outside. Never leave.

  As described above, the pressure relief hole 326 and the check valve 327 can effectively release the pressure during dehydration, and the configuration in which the drying circulation air is not released during the drying operation is established.

  In this embodiment, a plurality of pressure relief holes for releasing pressure are provided, but one may be used. Further, the arrangement location is not limited to the location of the present embodiment. Further, the shape of the check valve is not limited in this embodiment.

  As described above, the electrolysis apparatus according to the present invention suppresses pressure fluctuation in the water tank, prevents the pressure in the water tank from becoming too high, and high pressure is applied to the seal portion in the water tank and the drying circulation path. Problems due to this can be prevented and reliability can be improved. In addition, since the water tank can be swung greatly, dehydration can be easily started, and the energy saving performance can be improved by reducing the washing time. It is useful for washing machines, commercial washing machines and cleaning equipment.

DESCRIPTION OF SYMBOLS 100 Rotating drum 101 Through-hole 102 Water tank 103 Rotating shaft 104 Motor 105 Projection plate 106 Main body 107 Opening part 108 Cover body 109 Clothing entrance / exit 110 Spring body 111 Damper 112 Drain outlet 113 Drain path 114 Drain valve (drain means)
115 Water supply valve (water supply means)
116 Detergent case 117 Water supply path 119 Water supply check valve 150 Control device 151 Control means 152 Power switching means 153 Input setting means 154 Display means 155 Storage means 200 Hot air intake 201 Heat exchanger 202 Exhaust outlet 203 Blower heating path 204 Blower fan (Blower means)
205 Heater (heating means)
206 Warm air blowing path 207 Blower port 300 Lint collection filter device (filter device)
310 Upper Unit 311 Upper Filter Section 320 Lower Unit 321 Lower Filter Section 322 Housing 323 Inlet 324 Right Side Wall 325 Left Side Wall 326 Pressure Release Hole 327 Check Valve 400 Bellows Pipe US Upper Space LS Lower Space

Claims (2)

A swingable water tank,
A rotating drum that is rotatably arranged in the water tank, and whose rotation center axis is inclined horizontally or downward from the front side to the back side;
A motor for rotating the rotating drum;
A hot air intake for taking in the air in the rotating drum;
A filter device for collecting lint etc. contained in the air from the hot air intake;
A ventilation heating path communicating with the filter device and having a blowing means and a heating means inside;
A blower opening for blowing air from the blower heating path into the rotary drum;
And control means for controlling the motor and the heating means, etc. to control washing, rinsing, dehydration and drying,
The filter device is provided at a position where a negative pressure is applied during blowing in the drying process,
The filter device includes a hole through which air passes and a check valve that covers the hole,
The check valve is a drum-type washing and drying machine configured to open to the outside of the filter device. The drum-type washing and drying machine according to claim 1, wherein a plurality of the holes and the check valves are provided.

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