WO2022222703A1 - Lave-linge - Google Patents

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Publication number
WO2022222703A1
WO2022222703A1 PCT/CN2022/083611 CN2022083611W WO2022222703A1 WO 2022222703 A1 WO2022222703 A1 WO 2022222703A1 CN 2022083611 W CN2022083611 W CN 2022083611W WO 2022222703 A1 WO2022222703 A1 WO 2022222703A1
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WO
WIPO (PCT)
Prior art keywords
filter
chamber
slider
drain
filter body
Prior art date
Application number
PCT/CN2022/083611
Other languages
English (en)
Chinese (zh)
Inventor
新村光则
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to CN202280029127.9A priority Critical patent/CN117203389A/zh
Publication of WO2022222703A1 publication Critical patent/WO2022222703A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements

Definitions

  • the present invention relates to a washing machine.
  • washing machine provided with a drain filter which is provided in a drain path from which water used for washing is discharged to capture foreign matter such as fluff contained in the drain (for example, refer to Patent Document 1). ).
  • the catching efficiency of fluff from laundry, especially microplastics from chemical fiber laundry can be improved by narrowing the mesh of the drain filter.
  • the meshes of the drain filter are narrowed, clogging is likely to occur, and therefore, the frequency of cleaning the drain filter may increase, which may increase the burden on the user.
  • Patent Document 1 Japanese Patent Laid-Open No. 2013-81712
  • This application was made in view of the above-mentioned problems, and an object thereof is to provide a washing machine which can reduce the cleaning frequency of the drain filter.
  • the washing machine is provided with: an outer tub arranged in the box; a washing tub arranged in the outer tub and accommodating laundry; a drainage channel for discharging the water in the outer tub to the outside of the machine; a filter case disposed in the drain passage, having an inflow port into which the drain water from the outer cylinder flows and an outflow port into which the drain water flows; and a drain filter accommodated so as to be removable from the filter case in the filter box.
  • the drainage filter includes: a filter body having a cylindrical peripheral surface, and the peripheral surface is provided with a filter part that allows the drainage to pass through to capture foreign matter contained in the drainage; a sliding member to The filter body is disposed inside the filter body so as to be slidable in the axial direction of the peripheral surface, the interior of the filter body is partitioned along the axial direction in the region where the filter part is provided, and the filter body is separated.
  • the inside is divided into a second chamber and a first chamber connected to the inflow port; and an elastic member for imparting elastic force to the slider in a direction in which the second chamber is expanded.
  • the outer peripheral end of the slider is in contact with the surface of the filter portion.
  • the slider slides in the direction of expanding the first chamber according to the water pressure in the first chamber, and when the drain water stops flowing to the first chamber
  • the slider slides in the direction in which the second chamber is expanded by the elastic force of the elastic member.
  • the filter portion is automatically cleaned by the sliding of the slider due to the inflow and stoppage of the inflow of the drain water, so that the frequency of cleaning the drain filter by the user can be reduced.
  • the filter portion is provided over the entire circumference along the circumferential direction of the peripheral surface.
  • the following structure in the filter body, the end face on the side of the first chamber is opened, and the slider can enter and exit from the inside of the filter body through the opening of the end face, and the The end surface is in contact with the surface of the filter case in which the inflow port is formed, and the opening is connected to the inflow port.
  • the user can take out the slider to clean the filter portion from the inside of the filter body.
  • the drainage that has flowed into the inflow port can be made to flow into the first chamber through the opening.
  • the slider may be provided with a handle on the surface facing the opening of the filter body.
  • the user can manually clean the filter portion by grasping the handle and sliding the slider.
  • the outflow port may be provided on the surface of the filter case facing the peripheral surface of the filter body.
  • the position where the slider partitions the inside of the filter body may be such that the outflow port is in the axial direction.
  • the location of the zone range into the first chamber.
  • the outflow port enters the region of the first chamber in the axial direction of the peripheral surface, so even if the slider is not driven by the water pressure Sliding in the direction to expand the first chamber also ensures good drainage flow.
  • the washing machine which can reduce the cleaning frequency of a drain filter can be provided.
  • FIG. 1 is a side sectional view showing the configuration of the drum washing machine according to the embodiment.
  • FIG. 2 is a side sectional view of the filter device according to the embodiment.
  • FIG. 3 is a side sectional view of the filter device according to the embodiment.
  • Fig. 4 is a cross-sectional view of the filter device according to the embodiment taken along the line A-A' in Fig. 2 .
  • FIG. 5 (a) is a side cross-sectional view of the drain filter of the embodiment, and (b) is an enlarged cross-sectional view of a main part of the drain filter of the embodiment.
  • FIG. 6 (a) and (b) are respectively sectional views of the filter body and the slider of the embodiment taken along the same position as in Fig. 4 .
  • FIG. 7 (a) to (c) are cross-sectional views schematically showing the main parts of the filter device of Modification 1.
  • FIG. 7 (a) to (c) are cross-sectional views schematically showing the main parts of the filter device of Modification 1.
  • 10 box body; 20: outer cylinder; 23: drum (washing drum); 40: drainage path; 61: filter box; 62: drainage filter; 103: inlet; 104: outlet; 210: filter body; 210b: peripheral surface; 210c: opening; 220: slider; 222b: outer peripheral end; 223: handle; 240: coil spring (elastic member); Room two.
  • FIG. 1 is a side sectional view showing the structure of the drum washing machine 1 .
  • the drum washing machine 1 includes a box 10 having a square shape.
  • a circular input port 11 into which laundry is input is formed on the front surface of the case 10 .
  • the input port 11 is covered with a door 12 which can be opened and closed freely.
  • the outer cylinder 20 is elastically supported by a plurality of dampers 21 and springs 22 .
  • the drum 23 is arrange
  • the drum 23 rotates around a horizontal axis.
  • the drum 23 has a circular opening 23a on the front surface.
  • the outer cylinder 20 has a circular opening 20a in front of the opening 23a of the drum 23 .
  • the drum 23 corresponds to the washing tub of the present invention.
  • casing 10 are connected by the annular spacer 24 which consists of elastic materials.
  • the peripheral surface of the closed door 12 is in contact with the gasket 24 to water-tighten the space between the inlet 11 and the door 12 .
  • a large number of dewatering holes 23b are formed on the inner peripheral surface of the drum 23 .
  • an annular balancer 25 is provided at the front portion, and three lifting ribs 26 having a substantially triangular prism shape are provided at equal intervals in the circumferential direction.
  • a drive motor 30 that generates torque for rotating the drum 23 is arranged behind the outer cylinder 20 .
  • the drive motor 30 is, for example, an outer rotor type DC brushless motor.
  • the driving motor 30 rotates the drum 23 at a rotational speed at which the centrifugal force applied to the laundry in the drum 23 is smaller than gravity to make the laundry tumble.
  • the driving motor 30 rotates the drum 23 at a rotational speed at which the centrifugal force applied to the laundry in the drum 23 is much greater than the gravity so that the laundry adheres to the inner peripheral surface of the drum 23 .
  • the bottom part of the outer cylinder 20 is provided with the recessed part 20b recessed downward.
  • a drain path 40 for draining the water in the outer cylinder 20 to the outside of the machine is connected to the drain port provided on the bottom surface of the recessed portion 20b.
  • the drainage passage 40 is provided with two filter devices 50 and 60 for capturing foreign matter such as fluff contained in the drainage from the outer cylinder 20 on the upstream side and the downstream side.
  • the filter device 50 on the upstream side is arranged in the front lower part of the casing 10 .
  • the filter device 50 includes a filter case 51 arranged in the drain path 40 , and a drain filter 52 accommodated in the filter case 51 so as to be removable from the filter case 51 .
  • the filter case 51 is connected to the inlet and outlet provided in the lower part of the front surface of the housing 10 , and the drain filter 52 can be inserted into and removed from the filter case 51 through the inlet and outlet. Doors can be installed at entrances and exits.
  • the filter device 50 for example, the filter unit described in Japanese Patent Application Laid-Open No. 2020-103718 can be used.
  • the filter device 60 on the downstream side is arranged in the front upper part of the casing 10 .
  • the filter device 60 includes a filter case 61 arranged in the drain path 40 , and a drain filter 62 accommodated in the filter case 61 so as to be removable from the filter case 61 .
  • the filter case 61 is connected to the inlet and outlet provided in the upper part of the front surface of the housing 10 , and the drain filter 62 can be inserted into and removed from the filter case 61 through the inlet and outlet. Doors can be installed at entrances and exits.
  • the drain filter 62 can capture foreign matter of a size smaller than that which can be captured by the drain filter 52 on the upstream side, in particular, microplastics as fine fluff from synthetic fiber washing. The configuration of the filter device 60 will be described in detail later.
  • a drainage pump 70 is arranged between the filter device 50 on the upstream side and the filter device 60 on the downstream side.
  • the first drainage hose 41 is connected to the concave portion 20 b of the outer cylinder 20 and the filter device 50
  • the second drainage hose 42 is connected to the filter device 50 and the drainage pump 70 .
  • the third drain hose 43 is connected to the drain pump 70 .
  • the third drain hose 43 is lifted up to the upper part of the case 10 and connected to the filter device 60 .
  • a fourth drain hose 44 extending outside the machine is connected to the filter device 60 .
  • Water is stored in the drainage passage 40 to the same height as the water level of the water stored in the outer cylinder 20 .
  • the drain pump 70 operates, the water stored in the drain passage 40 and the water in the outer cylinder 20 are discharged to the outside of the machine.
  • the drain water from the outer cylinder 20 passes through the two filter devices 50 and 60, and the foreign matter is captured by the two filter devices 50 and 60.
  • the failure of the drain pump 70 due to the entry of large foreign objects into the drain pump 70 is prevented by trapping large foreign objects.
  • the drain filter 62 is less likely to be clogged.
  • the water supply part 80 is arrange
  • the water supply unit 80 includes a water supply valve 81 and a water supply hose 82 .
  • One end of the water supply hose 82 is connected to the water supply valve 81 , and the other end is connected to the water injection port 20 c provided on the rear surface of the outer cylinder 20 .
  • the water supply valve 81 When the water supply valve 81 is opened, the tap water from the faucet flows through the water supply hose 82, and is supplied into the outer cylinder 20 from the water injection port 20c.
  • a detergent injection device (not shown) is further provided. Before the washing operation, detergent and softener are contained in the detergent feeding device. When the water supply in the washing process is performed, detergent is injected into the drum 23 from the detergent injection device, and the softener is injected into the drum 23 from the detergent injection device when the water supply in the rinsing process is performed.
  • washing operation of various operation modes is performed.
  • a washing process, an intermediate dehydration process, a rinsing process, and a final dehydration process are sequentially performed.
  • the rinsing process and the intermediate spin-drying process may be performed more than twice.
  • water containing detergent is stored in the outer tub 20 to a predetermined water level corresponding to the load of the laundry contained in the drum 23, and the drum 23 is immersed in the drum 23 by repeating the forward and reverse rotations.
  • the laundry in the water is tumbled.
  • the water containing detergent penetrates into the laundry, and by the force of the detergent and the mechanical force generated by the tumbling, the dirt adhered to the surface of the laundry and the inside are peeled off.
  • the drum 23 is rotated forward and reversely to tumble the laundry. Thereby, the detergent contained in the laundry is discharged together with the water, and the laundry is rinsed.
  • the driving motor 30 rotates at high speed in one direction, and the drum 23 rotates in one direction at a rotational speed where the centrifugal force acting on the laundry in the drum 23 is far greater than gravity.
  • the drum 23 is rotated at a higher rotation speed than that in the intermediate dehydration process.
  • FIG. 2 and 3 are side sectional views of the filter device 60 .
  • FIG. 2 shows a state in which drain water does not flow into the filter body 210 .
  • FIG. 3 shows a state in which the slider 220 is slid to the maximum extent by the water pressure when the drain water flows into the filter body 210 .
  • FIG. 4 is a cross-sectional view of the filter device 60 taken along the line A-A' of FIG. 2 .
  • FIG. 5( a ) is a side sectional view of the drain filter 62 .
  • FIG. 5( b ) is an enlarged cross-sectional view of a main part of the drain filter 62 .
  • (a) and (b) of FIG. 6 are cross-sectional views of the filter body 210 and the slider 220 taken along the same positions as in FIG. 4 , respectively.
  • the illustration of the coil spring 240 is abbreviate
  • the filter case 61 is formed of a resin material, and has a bottomed cylindrical shape with an open front end surface and a closed rear end surface.
  • the filter case 61 includes a filter accommodating portion 101 and a handle accommodating portion 102 located in front of the filter accommodating portion 101 and having a larger outer diameter than the filter accommodating portion 101 .
  • the circular inflow port 103 is formed in the center part of the rear-end surface 101a, and the circular outflow port 104 is formed in the lowest position of the rear-end part of the peripheral surface 101b.
  • the filter accommodating portion 101 has a cylindrical connecting portion 105 protruding rearward from the inflow port 103 , and the third drain hose 43 is connected to the connecting portion 105 .
  • the filter housing portion 101 has a cylindrical connecting portion 106 protruding downward from the outflow port 104 , and the fourth drain hose 44 is connected to the connecting portion 106 .
  • the handle accommodating portion 102 is provided with a tapered portion 107 whose outer diameter gradually decreases at the rear end portion. Moreover, the handle accommodating part 102 is provided with the annular mounting flange 108 at the front-end part. The fitting flange 108 is fitted to the front surface of the case 10 by screws or the like. The opening 102 a of the front end surface of the handle accommodating part 102 is aligned with the entrance and exit of the front surface of the case 10 .
  • the drain filter 62 includes a filter body 210 , a sliding member 220 , a sliding guide member 230 , a coil spring 240 and a handle 250 .
  • the filter body 210 is a bottomed cylindrical body with a closed front end surface and an open rear end surface, and is formed of a resin material, the front end surface 210a has a circular shape, and the peripheral surface 210b has a cylindrical shape.
  • the filter screen 260 is provided over the entire circumference in the circumferential direction.
  • the filter screen 260 is formed of a metal material such as stainless steel, and has a cylindrical shape.
  • the filter mesh 260 may have a structure in which meshes are formed by weaving wires into a mesh shape, or a structure in which meshes are formed by opening an infinite number of holes in a sheet-like material. In the case of the latter structure, the size of the hole is the size of the mesh.
  • the mesh size of the filter screen 260 is set to, for example, about 30 to 50 microns.
  • the filter screen 260 corresponds to the filter part of the present invention.
  • the filter screen 260 is integrally formed with the filter body 210 by means of insert molding. In the front-rear direction, that is, in the axial direction of the peripheral surface 210b of the filter body 210 , the filter screen 260 occupies more than half of the front side from the rear end portion of the peripheral surface 210b of the filter body 210 .
  • the filter body 210 is provided with a plurality of (eg, eight) grid bars 211 extending in the axial direction at predetermined intervals in the circumferential direction in the region of the filter mesh 260 . A part of the filter mesh 260 is embedded in each of the grid bars 211, and the area of the filter mesh 260 is divided into a plurality of areas in the circumferential direction. It should be noted that the number of grid bars 211 may be determined in consideration of the strength of the filter body 210 . In addition, the grid bars 211 may not be provided in the filter body 210 .
  • the front end surface 210a of the filter body 210 has a recessed portion 212 formed at the center of the inner side, and a cylindrical mounting boss 213 is provided at the center of the recessed portion 212 .
  • the outer peripheral edge portion of the recessed portion 212 is formed deep.
  • the slider 220 is slidably disposed inside the filter body 210 .
  • the slider 220 is formed of a resin material, and includes a slider body 221, a flange 222, and a handle 223.
  • the slider body 221 has a bottomed cylindrical shape with an open front end surface and a closed rear end surface.
  • the flange 222 has an annular shape, and is provided at a predetermined position on the peripheral surface of the slider body 221 . As shown in FIG. 6( b ), at the outer peripheral end portion of the flange 222 , at positions corresponding to the plurality of grid bars 211 of the filter body 210 , there is formed a radially recessed shape corresponding to the shape of the grid bars 211 . Recess 222a.
  • the outer peripheral end 222 b of the flange 222 which is the outer peripheral end of the slider 220 is in contact with the surface of the filter screen 260 .
  • a slight gap is generated between each of the grid bars 211 of the filter body 210 and the concave portion 222 a of the flange 222 .
  • the handle 223 has a plate shape and protrudes rearward from the rear end face of the slider body 221 .
  • the recessed part 222a is not provided in the flange 222.
  • the slider 220 partitions the interior of the filter body 210 along the axial direction of the filter body 210 in the region where the filter screen 260 is provided. Accordingly, the inside of the filter body 210 is divided into the second chamber R2 and the first chamber R1 connected to the inflow port 103 of the filter case 61 .
  • the sliding guide 230 is arranged inside the filter body 210 .
  • the slide guide 230 is formed of a resin material, and has a bottomed cylindrical shape with a closed front end surface and an open rear end surface.
  • the slide guide 230 is fixed to the center of the front end surface 210 a of the filter body 210 . That is, the front end portion of the slide guide 230 has a shape corresponding to the recessed portion 212 of the front end surface 210 a and is fitted into the recessed portion 212 .
  • the mounting bosses 213 are fitted into the mounting recesses 231 provided on the front end surface of the slide guide 230 , and the mounting recesses 231 are fixed to the mounting bosses 213 by screws 232 .
  • the space between the outer peripheral surface of the front end portion of the slide guide 230 and the inner peripheral surface of the recessed portion 212 is water-sealed by an O-ring 233 .
  • the slide guide 230 is inserted into the slider main body 221 and supports the slider 220 so as to be slidable.
  • a plurality of (eg, eight) ribs 234 extending in the axial direction are formed on the peripheral surface of the slide guide 230 at predetermined intervals in the circumferential direction. These ribs 234 are in contact with the inner peripheral surface of the slider body 221 , thereby reducing frictional resistance when the slider 220 slides.
  • An annular spacer 235 is provided at the front end portion of the slide guide 230 .
  • the gasket 235 is in contact with the inner peripheral surface of the slider body 221 . Thereby, water is prevented from entering the inside of the slider main body 221 and the slide guide 230 .
  • the front end side of the coil spring 240 is accommodated inside the slide guide 230 , and the rear end side protrudes rearward from the slide guide 230 .
  • the coil spring 240 corresponds to the elastic member of the present invention.
  • the position where the rear end surface of the slider main body 221 is in contact with the rear end of the coil spring 240 of natural length is the initial position of the slider 220 .
  • the slider 220 exists in the initial position.
  • the position where the slider 220 separates the inside of the filter body 210 that is, the position of the flange 222 of the slider 220 is the position where the outflow port 104 enters the area of the first chamber R1 in the axial direction of the filter body 210 , and the flow The outlet 104 exists directly below the first chamber R1.
  • An attachment portion 214 to which the handle 250 is attached is integrally formed at the front portion of the filter body 210 .
  • the attachment portion 214 has a cylindrical shape and has a larger outer diameter than the filter body 210 .
  • a flange 214a is provided in the middle portion, and an O-ring 215 is attached to the rear side of the flange 214a.
  • a claw 214b is formed at the front end portion.
  • the handle 250 is formed of a resin material, and includes a disk-shaped base portion 251 and a plate-shaped handle 252 protruding from the center portion of the base portion 251 .
  • the handle 250 is attached to the attachment portion 214 .
  • the claws 251a provided on the base portion 251 are engaged with the claws 214b of the attachment portion 214 .
  • the handle 250 is in a state in which it is rotatable without being exposed forward with respect to the attaching portion 214 .
  • the filter body 210 is accommodated in the filter accommodating portion 101
  • the handle 250 is accommodated in the handle accommodating portion 102 .
  • the handle 250 is provided with a male thread portion (not shown) on the outer peripheral surface of the base portion 251
  • the handle housing portion 102 is provided with a female thread portion (not shown).
  • the rear end surface of the filter body 210 is in contact with the rear end surface 101 a of the filter housing portion 101 , and the opening 210 c of the rear end surface of the filter body 210 is connected to the inflow port 103 .
  • An annular convex portion 216 is formed at the rear end of the filter body 210 , and the convex portion 216 is fitted into the annular groove portion 109 formed in the rear end surface 101 a of the filter housing portion 101 .
  • the drain from the outer cylinder 20 flows into the first chamber R1 of the filter body 210 through the inflow port 103 .
  • the slider 220 slides forward to a position where the water pressure in the first chamber R1 and the sliding resistance generated by the coil spring 240 and the packing 235 balance in the direction in which the first chamber R1 expands.
  • the spring constant of the coil spring 240 can be set so that the slider 220 does not move or move slightly at a stage when the area of the filter mesh 260 contained in the first chamber R1 hardly captures foreign matter such as microplastics.
  • the drain water flowing into the first chamber R1 flows out of the filter body 210 through the filter screen 260 and flows into the outflow port 104 .
  • the foreign matter contained in the drain is captured by the filter screen 260 and accumulated on the surface of the filter screen 260 . Since the drainage easily flows through a path with low flow resistance, foreign matter is particularly likely to accumulate in the portion of the filter screen 260 near the outflow port 104 .
  • the sliding member 220 can slide to the front end of the filter screen 260 to the maximum extent. When the sliding member 220 moves to this position, the drainage can pass through the entire area of the filter screen 260 .
  • the drain pump 70 When the drain pump 70 is stopped, the water pressure in the first chamber R1 decreases, and the slider 220 is pushed by the elastic force of the coil spring 240 and slides rearward in a direction in which the second chamber R2 expands.
  • the slider 220 slides, the slider 220, that is, the outer peripheral end 222b of the flange 222 slides over the surface of the filter screen 260 to push out the foreign matter accumulated on the surface of the filter screen 260 to the rear.
  • the pushed out foreign matter is accumulated in the first chamber R1 behind the stopped slider 220 , that is, after the slider 220 has completed sliding.
  • the slider 220 slides according to the change of the water pressure in the first chamber R1, thereby cleaning the surface of the filter screen 260 within the sliding range.
  • a large amount of foreign matter can be captured by the filter screen 260 before the entire filter screen 260 is clogged to such an extent that the minimum drainage flow rate cannot be ensured. Therefore, the frequency of cleaning the drain filter 62 by the user can be reduced.
  • the outflow port 104 enters the first chamber in the axial direction of the filter body 210 .
  • the drain water passing through the portion of the filter screen 260 near the outflow port 104 directly flows into the outflow port 104 . Therefore, the flow resistance of the drain water in the first chamber R1 is reduced, and the drain flow rate can be increased.
  • the outflow port 104 has already entered the region of the first chamber R1 in the state where the slider 220 is in the initial position.
  • the slider 220 is moved by hydraulic pressure. Even if the 220 slides forward in the direction in which the first chamber R1 expands, a good drainage flow rate can be ensured. Therefore, the slider 220 does not need to be slidable under low water pressure, and accordingly, the elastic force of the coil spring 240 can be increased. Therefore, when the slider 220 is slid backward by the elastic force in the direction in which the second chamber R2 expands, the foreign matter accumulated on the surface of the filter screen 260 can be strongly pushed out, and the foreign matter can be easily removed.
  • the drainage pump 70 is used to deliver the drainage to the drainage filter 62, which is the filter device 60, the water supply pressure can be increased, and even if the mesh size of the filter screen 260 is reduced in order to capture microplastics, it is easy to obtain a sufficient amount of water. Drain flow.
  • the user can remove the drain filter 62 from the filter box 61 to clean the filter screen 260 .
  • the user can grasp the handle 223 and pull the slider 220 to the rear of the initial position.
  • the outer peripheral end 222b of the flange 222 slides outward from the opening 210c of the filter body 210 on the surface of the filter mesh 260 behind the initial position, that is, the surface of the filter mesh 260 in the area where the slider 220 does not slide due to changes in water pressure. Foreign matter accumulated in the filter 260 is pushed out.
  • the inner peripheral wall surface is slightly bulged inward than the filter screen 260 .
  • the flange 222 of the slider 220 moves to the rear end portion, the flange 222 The outer peripheral end of the tumbler is in contact with the bulge portion 218 . Therefore, the sliding member 220 is less likely to accidentally fall off from the inside of the filter body 210 through the opening 210c.
  • the bulge part 218 has the inclined surface 218a which expands the opening 210c of the front-end
  • the inside of the filter body 210 having the filter mesh 260 on the peripheral surface 210b is partitioned by the slider 220 and divided into the first chamber R1 and the second chamber R2.
  • the slider 220 slides in the direction of expanding the first chamber R1 according to the magnitude of the water pressure in the first chamber R1, and when the drain water stops flowing into the first chamber R1, the slider 220 slides The member 220 is pressed by the coil spring 240 and slides in the direction in which the second chamber R2 is expanded.
  • the outer peripheral end 222b of the slider 220 slides on the surface of the filter 260 to remove foreign matter accumulated on the surface of the filter 260.
  • the filter screen 260 is automatically cleaned by the sliding of the slider 220 due to the inflow and stop of the inflow of the drain water, so that the frequency of cleaning the drain filter 62 by the user can be reduced.
  • the filter device 60 can be realized at low cost.
  • the filter mesh 260 is provided over the entire circumference along the circumferential direction of the peripheral surface 210b of the filter body 210 , a large amount of foreign matter can be captured by the filter mesh 260 .
  • the rear end surface which is the end surface on the side of the first chamber R1 , is open, and the slider 220 can enter and exit the filter body 210 from the opening 210 c of the rear end surface. Then, the rear end surface of the filter body 210 is in contact with the rear end surface 101 a of the filter case 61 to connect the opening 210 c to the inflow port 103 . Thereby, the user can take out the slider 220 to clean the filter mesh 260 from the inside of the filter body 210 . Moreover, the drain which flows into the inflow port 103 can be made to flow into the 1st chamber R1 through the opening 210c.
  • the slider 220 is provided with the handle 223 on the rear end surface of the opening 210c facing the filter body 210 , so that the user can manually clean the filter 260 by grasping the handle 223 and sliding the slider 220 .
  • the outflow port 104 enters the area of the first chamber R1 in the axial direction of the filter body 210. Therefore, even if it is not Even when the filter screen 260 is not clogged, the slider 220 is slid in the direction in which the first chamber R1 is expanded by the hydraulic pressure, and a good drainage flow rate can be ensured. Therefore, the slider 220 does not need to be slidable under low water pressure, and accordingly, the elastic force of the coil spring 240 can be increased to make the slider 220 slide strongly, so that the surface accumulated on the filter mesh 260 can be easily removed. of foreign bodies.
  • FIGS. 7( a ) to ( c ) are cross-sectional views schematically showing main parts of the filter device 60 of Modification 1.
  • FIG. 7( a ) to ( c ) are cross-sectional views schematically showing main parts of the filter device 60 of Modification 1.
  • the drain filter 62 is arranged so that when the inflow of drain water into the first chamber R1 is stopped and the slider 220 is present at the initial position, the slider 220 is placed on the filter body.
  • the position where the interior of 210 is partitioned that is, the position of the flange 222 of the slider 220 is forward of the outflow port 104 , and the outflow port 104 enters the area of the first chamber R1 in the axial direction of the filter body 210 .
  • the drain filter 62 is arranged so as to slide when the inflow of drain water into the first chamber R1 is stopped and the slider 220 exists at the initial position.
  • the position where the member 220 partitions the interior of the filter body 210 that is, the position of the flange 222 of the slider 220 is rearward of the outflow port 104 , which is offset from the area of the first chamber R1 in the axial direction of the filter body 210 .
  • this modification since the part of the filter screen 260 in the vicinity of the outflow port 104 which is easy to accumulate foreign substances is included in the sliding range of the slider 220, this part can be cleaned automatically.
  • the drain filter 62 may be configured such that the slider 220 partitions the inside of the filter body 210 when the inflow of the drain into the first chamber R1 is stopped and the slider 220 is at the initial position.
  • the position of that is, the position of the flange 222 of the slider 220 is within the range of the outflow port 104 , and a part of the outflow port 104 enters the area of the first chamber R1 in the axial direction of the filter body 210 .
  • the filter screen 260 is provided so as to extend over the entire circumference along the circumferential direction of the peripheral surface 210b of the filter body 210 .
  • the filter net 260 does not necessarily need to be provided over the entire circumference along the circumferential direction of the peripheral surface 210b of the filter body 210 .
  • the drainage that has flowed into the filter body 210 tends to flow downward. Therefore, for example, the filter screen 260 may be provided on the lower half circle in the circumferential direction of the peripheral surface 210b.
  • the filter screen 260 is formed of a metal material, but may be formed of a resin material.
  • the shape of the handle 223 provided in the slider 220 is not limited to the shape of the above-described embodiment, and any shape may be used as long as it can be grasped by fingers.
  • the downstream filter device 60 is arranged in the upper front part of the housing 10 , but may be arranged in the lower front part of the housing 10 , that is, at a position lower than the recessed portion 20 b of the outer cylinder 20 .
  • the filter device 50 on the upstream side is arranged in the front lower part in the casing 10 like the above-described embodiment, the two filter devices 50 and 60 may be arranged to be separated from each other to the left and right.
  • the drain pump 70 may not be provided.
  • the coil spring 240 is used in order to impart elastic force to the slider 220 , but a spring other than the coil spring 240 or an elastic member other than the spring may be used.
  • this invention is applied to the front-loading washing machine 1 provided with the horizontal axis
  • the present invention can also be applied to a so-called vertical fully automatic washing machine provided with a vertical axis type washing and dewatering tub having a pulsator inside.
  • the present invention can also be applied to a drum-type washer-dryer and a fully automatic washer-dryer with a drying function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

L'invention concerne un lave-linge doté d'un filtre de vidange (62). Le filtre de vidange (62) comprend : un corps de filtre (210) doté d'un tamis filtrant (260) sur une surface périphérique (210b) de celui-ci ; un élément coulissant (220) configuré pour pouvoir coulisser dans une direction axiale de la surface périphérique (210b) pour diviser l'intérieur du corps de filtre (210) en une première chambre (R1) et une deuxième chambre (R2) ; et un ressort en spirale (240) qui applique une force élastique sur l'élément coulissant (220) dans une direction dans laquelle la deuxième chambre (R2) s'étend. Une extrémité périphérique extérieure de l'élément coulissant (220) est en contact avec une surface du tamis filtrant (260). Lorsque l'eau de vidange s'écoule dans la première chambre (R1), l'élément coulissant (220) coulisse, dans la direction dans laquelle la première chambre (R1) s'étend, en fonction de la pression de l'eau dans la première chambre (R1) ; et lorsque l'eau de vidange arrête de s'écouler dans la première chambre (R1), l'élément coulissant (220) coulisse, dans la direction dans laquelle la deuxième chambre (R2) s'étend, au moyen de la force élastique du ressort en spirale (240).
PCT/CN2022/083611 2021-04-23 2022-03-29 Lave-linge WO2022222703A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202280029127.9A CN117203389A (zh) 2021-04-23 2022-03-29 洗衣机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-073402 2021-04-23
JP2021073402A JP2022167547A (ja) 2021-04-23 2021-04-23 洗濯機

Publications (1)

Publication Number Publication Date
WO2022222703A1 true WO2022222703A1 (fr) 2022-10-27

Family

ID=83723614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/083611 WO2022222703A1 (fr) 2021-04-23 2022-03-29 Lave-linge

Country Status (3)

Country Link
JP (1) JP2022167547A (fr)
CN (1) CN117203389A (fr)
WO (1) WO2022222703A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001321596A (ja) * 2000-05-17 2001-11-20 Sharp Corp フィルター装置及び排水ポンプ装置
KR100762342B1 (ko) * 2006-10-09 2007-10-02 주식회사 대우일렉트로닉스 세탁기의 필터배출장치 및 필터배출방법
US20080017568A1 (en) * 2006-07-24 2008-01-24 Steris Inc. Self-cleaning filter for washers
US20180015395A1 (en) * 2016-07-13 2018-01-18 Schlumberger Technology Corporation Self-cleaning filter
JP2019098010A (ja) * 2017-12-06 2019-06-24 東芝ライフスタイル株式会社 リントフィルタ装置および洗濯機
US20200179846A1 (en) * 2017-07-20 2020-06-11 Planet Care, Resitve Za Okolje D.O.O. Method and Device for Removing Particles from Waste Water
CN112424416A (zh) * 2018-08-22 2021-02-26 松下知识产权经营株式会社 洗衣机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001321596A (ja) * 2000-05-17 2001-11-20 Sharp Corp フィルター装置及び排水ポンプ装置
US20080017568A1 (en) * 2006-07-24 2008-01-24 Steris Inc. Self-cleaning filter for washers
KR100762342B1 (ko) * 2006-10-09 2007-10-02 주식회사 대우일렉트로닉스 세탁기의 필터배출장치 및 필터배출방법
US20180015395A1 (en) * 2016-07-13 2018-01-18 Schlumberger Technology Corporation Self-cleaning filter
US20200179846A1 (en) * 2017-07-20 2020-06-11 Planet Care, Resitve Za Okolje D.O.O. Method and Device for Removing Particles from Waste Water
JP2019098010A (ja) * 2017-12-06 2019-06-24 東芝ライフスタイル株式会社 リントフィルタ装置および洗濯機
CN112424416A (zh) * 2018-08-22 2021-02-26 松下知识产权经营株式会社 洗衣机

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CN117203389A (zh) 2023-12-08

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