CN114086361A - Washing machine inner barrel assembly, washing machine and control method - Google Patents

Abstract

The invention provides a washing machine inner barrel assembly, a washing machine and a control method, wherein the washing machine inner barrel assembly comprises: the inner barrel is provided with a water passing part communicated with the inside and the outside of the inner barrel at the bottom, a filtering component is arranged at the water passing part, a water drainage hole which is far away from the axis of the inner barrel relative to the water passing part is arranged at the bottom of the inner barrel, and the inner barrel is communicated with the outside of the inner barrel through the water drainage hole. Through the arrangement, the washing water in the inner barrel can directly flow out of the inner barrel through the water drainage holes formed in the bottom of the inner barrel, the water pressure at the bottom of the inner barrel is reduced, the water flow speed at the water passing part formed in the bottom of the inner barrel is improved, the thread scrap filtering efficiency of the filtering component covering the water passing part is obviously improved, and the obvious technical progress of improving the thread scrap collecting efficiency of the washing machine is further achieved.

Description

Washing machine inner barrel assembly, washing machine and control method

Technical Field

The invention belongs to the technical field of clothes treatment equipment, particularly relates to a pulsator washing machine, and particularly relates to an inner barrel assembly which is applied to the pulsator washing machine, has a thread scrap filtering function and can automatically clean collected thread scraps; meanwhile, the invention also relates to a control method for collecting and self-cleaning the thread scraps in the washing water, which is applied to the washing machine.

Background

In order to prevent the thread scraps from adhering to the clothes, a thread scraps filtering assembly is generally disposed on an inner tub wall of the washing machine to collect the thread scraps so as to clean the clothes. Like this, after having washed the clothing, need pull down the thread scraps filter and clear up, avoid thread scraps filtering component to block up.

The existing thread scrap filtering component is generally arranged on the inner wall of the inner barrel, the thread scrap filtering component rotates along with the inner barrel, and washing water continuously passes through the thread scrap filtering component so as to realize the purpose of filtering and collecting thread scraps wrapped in washing water of the washing machine.

However, the lint filter assembly with the structure is arranged on the wall of the inner barrel, so that the lint filter assembly is required to be arranged on the inner barrel when the washing machine is assembled, the assembling complexity in the production process is increased, and the production efficiency is reduced; meanwhile, the lint filtering component is arranged to protrude out of the surface of the inner barrel wall, so that the lint filtering component can abrade the washing clothes in the inner barrel in the rotating process of the inner barrel; in addition, because the thread scraps filter assembly of above-mentioned structure is collected the thread scraps after filtering to accomodating bag or receiver in, after washing machine normal use certain time, still need the user to carry out manual clearance to the thread scraps of collecting.

In order to solve the above problems, as shown in fig. 1, the applicant previously proposed a washing machine in which a filter assembly 7 is provided at a tub bottom 5 in the washing machine, and the filter assembly 7 collects lint in washing water. The filtering assembly 7 collects lint when the washing machine performs a washing process; when the washing machine performs a draining process, the thread scraps collected by the filtering assembly 7 are removed by the draining water flow. However, the washing machine having the above structure has the following problems:

1. when the washing machine washes, the washing water which flows back to the inner barrel 1 from the thread scrap filtering component 7 can only flow into the inner barrel 1 above the impeller 2 through a flow passage arranged on the impeller 2 and/or a gap between the impeller 2 and the side wall 8 of the inner barrel, so that the pressure at the space between the impeller 2 and the bottom 5 of the inner barrel is too high, and the problems of poor water flow circulation and low thread scrap collecting efficiency at the thread scrap filtering component 7 can be caused;

2. when the washing machine drains water, because the thread scrap filtering component 7 is arranged at the water passing part 4 communicated between the inner barrel bottom 5 and the inner and outer barrels, the filtering component 7 can block water flow flowing out of the inner barrel, so that the drainage rate of the washing machine is reduced, and the problem that the washing machine has too long drainage time can be caused.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an inner barrel assembly of a washing machine, so as to accelerate the flowability of washing water in the inner barrel and further achieve the purpose of improving the thread scrap filtering efficiency.

In order to achieve the purpose of the invention, the basic concept of the technical scheme adopted by the invention is as follows:

the present invention provides an inner tub assembly of a washing machine, which includes: the bottom of the inner barrel is provided with a water passing part communicated with the inside and the outside of the inner barrel, and a filtering component is arranged at the water passing part; the inner barrel bottom is provided with a water drainage hole which is far away from the axis of the inner barrel relative to the water passing part and is directly communicated with the outside of the inner barrel.

Further, the water passing part is arranged in the middle of the bottom of the inner barrel; the filter assembly is arranged at the lower side of the bottom of the inner barrel and correspondingly covers the water passing part; the drain hole is arranged on the inner barrel bottom at the periphery of the filtering component.

Further, the water drainage hole is arranged at the periphery of the bottom of the inner barrel; preferably, a plurality of water drainage holes are formed in the periphery of the bottom of the inner barrel; further preferably, the drain holes at the periphery of the bottom of the inner barrel are arranged at equal intervals along the circumferential direction.

Further, the water drainage hole is arranged at the lowest part of the bottom of the inner barrel; preferably, the inner barrel bottom is a groove structure which is arranged with an opening upwards, and the drain hole is arranged at the connecting part of the bottom wall and the side wall of the groove.

Furthermore, the water drain hole is arranged in the direction from the inner part of the inner barrel to the outside and is inclined downwards.

Further, a flange plate is arranged at the center of the bottom of the inner barrel; the water passing part is a hollow part arranged on the flange plate, and/or a gap arranged at the joint of the inner barrel bottom and the flange plate, and/or a through hole directly arranged at the middle part of the inner barrel bottom.

Further, the filtering component comprises a bracket, a hollow area is arranged on the bracket, and the inside and the outside of the inner barrel are communicated through the water part by the hollow area; the bracket is fixedly connected with the flange and/or the bottom of the inner barrel; and a filter screen covering the hollow area is laid on the bracket.

The present invention also discloses a washing machine, which includes: the washing machine inner barrel assembly is sleeved in the outer barrel, and a wave wheel is arranged in the inner barrel of the washing machine inner barrel assembly; the washing machine also comprises a motor, and the inner barrel and the impeller are directly or indirectly connected with the motor, so that the inner barrel and the impeller can rotate together or respectively under the driving action of the motor of the washing machine.

The invention also provides a control method of the washing machine, so as to achieve the purpose of improving the thread scrap collecting efficiency; another objective of the present invention is to provide a control method for a washing machine, so as to achieve the purpose of self-cleaning the lint collected by the washing machine and reducing the lint residue in the washing machine.

In order to achieve the purpose of the invention, the invention adopts the following specific technical scheme:

the invention also introduces a control method of the washing machine, when the washing machine executes a washing program, the impeller is driven to rotate, the washing water in the inner barrel flows towards the peripheral side wall of the inner barrel under the agitation of the impeller, at least part of the water flows through the water drainage holes arranged at the bottom of the inner barrel and flows between the inner barrel and the outer barrel, the washing water between the inner barrel and the outer barrel flows back to the inner barrel through the water passing part at the bottom of the inner barrel, the filtering component arranged at the water passing part filters the thread scraps of the return water, and the thread scraps are trapped between the inner barrel and the outer barrel.

Further, after the washing program is finished, firstly, the washing water in the outer barrel is drained to a first set water level which is slightly higher than the bottom of the inner barrel, so that the liquid level of the washing water in the barrel just exceeds the upper surface of the bottom of the inner barrel; driving the inner barrel to rotate, wherein washing water in the inner barrel flows to a space between the inner barrel and the outer barrel from the water drainage hole under the action of a rotating acting force, and the thread scraps in the inner barrel flow to the space between the inner barrel and the outer barrel along with the water flow I;

when the washing water in the inner barrel diffuses and flows towards the periphery of the inner barrel, negative pressure is formed in the middle of the bottom of the inner barrel, the water between the inner barrel and the outer barrel is pumped into the inner barrel through the water passing part in the middle of the bottom of the inner barrel, and the thread scraps in the washing water flowing through the water passing part are collected below the filtering component.

Preferably, the first set water level is slightly higher than the bottom of the inner barrel, so that only a small amount of washing water is left in the inner barrel, the washing water in the inner barrel can be completely discharged by the rotating acting force, and the purpose of effectively cleaning the thread scraps in the inner barrel and avoiding the thread scraps remaining is further achieved.

Further, the washing machine drains water to a second set water level, the water level of the washing water in the outer barrel is flush with the filtering component, the inner barrel and the impeller are controlled to rotate at high speed together, and the thread scraps attached to the filtering component are separated from the filtering component under the action of the rotating centrifugal force and thrown into the washing water between the inner barrel and the outer barrel;

the washing machine continues to drain water to an empty water level, and the thread scraps in the washing water flow out along with the drained water.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the water drain holes which are distributed in a staggered manner with the filtering components and are directly communicated with the inside and the outside of the inner barrel are arranged on the bottom of the inner barrel, so that the water drain holes are arranged far away from the axis of the inner barrel relative to the water passing part, washing water in the inner barrel can directly flow out of the inner barrel through the water drain holes arranged on the bottom of the inner barrel, the water pressure at the bottom of the inner barrel is reduced, the water flow speed at the water passing part arranged on the bottom of the inner barrel is improved, the thread scraps filtering efficiency of the filtering components covering the water passing part is obviously improved, and the obvious technical progress of improving the thread scraps collecting efficiency of the washing machine is further achieved.

2. Meanwhile, the drainage holes which are not paved with the filtering component but are directly communicated with the inside and the outside of the inner barrel are arranged at the bottom of the inner barrel, so that the washing water in the inner barrel of the washing machine can directly flow out of the inner barrel through the drainage holes, the drainage speed is improved, and the drainage duration of the washing machine is effectively reduced.

3. In addition, according to the control method of the washing machine, the washing machine can effectively collect the thread scraps in the washing water and thoroughly clean the collected thread scraps in the drainage procedure of the washing machine, so that thread scrap residues in the washing machine are obviously reduced, and the thread scrap collecting efficiency of the washing machine is effectively improved.

Meanwhile, the invention has simple structure and obvious effect and is suitable for popularization and use.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic structural view of an inner tub assembly of a related art washing machine;

FIG. 2 is a schematic structural view of an inner tub assembly of the washing machine in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of the bottom of the inner barrel viewed from above in an embodiment of the present invention;

FIG. 4 is a schematic bottom view of the inner tub in the embodiment of the present invention;

FIGS. 5 and 6 are schematic structural views of the bottom of the inner barrel from different perspectives in the embodiment of the invention;

fig. 7 is a flowchart of a control method of a washing machine in an embodiment of the present invention.

Description of the main elements in the figures:

1. an inner barrel; 2. an impeller; 3. a water drain hole; 4. a water passing part; 5. an inner barrel bottom; 6. a flange plate; 7. a filter assembly; 8. the side wall of the inner barrel.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 2 to 7, in the embodiment of the present invention, a washing machine is described, which includes an outer tub in which an inner tub 1 is installed to be relatively rotatable, and an impeller 2 is installed in the inner tub 1 to be relatively rotatable or co-rotatable, so as to agitate water in the inner tub 1 and generate a rotating current to treat laundry in the inner tub. In the embodiment of the present invention, the pulsator 2 provided in the inner tub 1 may be any other conventional pulsator component capable of agitating water in the inner tub 1, for example: a stir column, and the like. Meanwhile, for convenience of description, the embodiment of the present invention is described by taking the pulsator 2 as an example of the agitation member installed in the inner tub 1.

In the embodiment of the invention, the inner barrel 1 comprises a cylindrical inner barrel side wall 8 with a vertically arranged axis, and the lower end of the inner barrel side wall 8 is correspondingly connected with an inner barrel bottom 5. The inner barrel bottom 5 and the inner barrel side wall 8 jointly form an inner barrel 1 which is open at the upper end and is barrel-shaped. The inner barrel 1 is coaxially arranged in the outer barrel, the bottom of the outer barrel is provided with a motor, the motor is connected with an inner barrel shaft directly or through a transmission mechanism, and the inner barrel shaft penetrates through the outer barrel and is coaxially connected with an inner barrel bottom 5.

In the embodiment of the invention, in order to realize the fixed connection of the inner barrel shaft and the inner barrel bottom 5, the flange 6 is arranged on the inner barrel bottom 5, the flange 6 is arranged at the center of the inner barrel bottom 5, the upper side of the flange 6 is fixedly connected with the inner barrel bottom 5, and the lower side of the flange 6 is connected with the upper end of the inner barrel shaft. And a through hole for the wave wheel shaft to pass through is formed in the center of the flange plate.

Meanwhile, in order to realize the water permeability of the inner barrel 1 of the washing machine, an opening which is arranged in a penetrating way is generally arranged at the center of the inner barrel bottom 5, the flange 6 is generally arranged at the opening of the inner barrel bottom 5 correspondingly, the periphery of the flange 6 is connected with the inner barrel bottom 5 at the periphery of the opening, a hollow part and/or a gap arranged at the joint of the inner barrel bottom 5 and the flange 6 and/or a through hole directly arranged at the middle part of the inner barrel bottom 5 are arranged on the flange 6, so that the hollow part, the gap and/or the through hole form a water passing part 4 arranged on the inner barrel bottom 5, and the water passing part 4 is communicated between the inner barrel 1 and the inner barrel and the outer barrel to realize the water flow between the inner barrel and the outer barrel.

Especially, in the washing process of the washing machine, the washing water in the inner barrel 1 can form rotating water flow under the stirring action of the rotating impeller 2, the rotating water flow in the inner barrel 1 flows to the side wall of the periphery of the inner barrel and flows to the space between the inner barrel and the outer barrel through the dewatering holes formed on the side wall 8 of the inner barrel; then, the washing water flowing between the inner and outer barrels flows down to the lower space of the inner barrel bottom 5, and then flows back to the inner barrel 1 through the water passing part 4 arranged on the inner barrel bottom 5 to form water circulation, thereby achieving the effect of washing the clothes in the inner barrel 1.

In the embodiment of the invention, the filtering component 7 is arranged on the inner barrel bottom 5 of the inner barrel 1 of the washing machine, the filtering component 7 at least covers the water passing part 4, so that the washing water flowing through the water passing part 4 is subjected to thread scrap filtering through the filtering component 7, the purpose of filtering thread scraps in the washing water flowing back to the inner barrel 1 through the water passing part 4 when the washing machine executes a washing program is realized, and the effect of collecting the thread scraps contained in the washing water in the outer barrel of the washing machine is further achieved.

In the embodiment of the present invention, in order to improve the mobility of the washing water in the inner tub 1, especially to increase the water exchange rate at the bottom 5 of the inner tub and the space below the pulsator 2, so as to improve the flow velocity of the water flowing through the water part 4 and increase the thread scrap collecting efficiency of the filtering component 7, the following settings are specially performed:

in the embodiment of the invention, the inner barrel bottom 5 is provided with the water drainage holes 3 which are distributed in a staggered way with the filtering component 7 and are communicated with the inside and the outside of the inner barrel, and the water drainage holes 3 are arranged far away from the axis of the inner barrel relative to the water passing part 4 and are directly communicated with the outside of the inner barrel 1 without passing through the filtering component 7. Through the arrangement, the washing water in the inner barrel 1 can directly flow out of the inner barrel through the water drainage hole 3 formed at the bottom of the inner barrel 5, the water pressure at the bottom of the inner barrel 5 is reduced, the water flow speed at the water passing part 4 arranged at the bottom of the inner barrel 5 is improved, the thread scrap filtering efficiency of the filtering component 7 covering the water passing part 4 is obviously improved, and the obvious technical progress for improving the thread scrap collecting efficiency of the washing machine is further achieved.

Example one

As shown in fig. 2 to 6, in the present embodiment, an inner barrel assembly is disclosed, which includes: an inner barrel 1; the inner barrel bottom 5 is provided with a water passing part 4 which is communicated with the inside and the outside of the inner barrel 1 and is used for leading the washing water between the inner barrel and the outer barrel to flow into the inner barrel 1 when the washing machine executes a washing program, and the water passing part 4 is provided with a filtering component 7 for filtering thread scraps of the washing water flowing into the inner barrel 1; the inner barrel bottom 5 is provided with water drainage holes 3 which are arranged in a staggered way with the filtering components 7 and are communicated with the inside and the outside of the inner barrel 1. The water discharge hole 3 is arranged far away from the axis of the inner barrel relative to the water passing part 4, does not pass through the filtering component 7 and is directly communicated with the outside of the inner barrel 1.

In this embodiment, the inner barrel 1 is provided with a coaxially arranged impeller 2, and the impeller 2 is arranged above the inner barrel bottom 5 and spaced from the inner barrel bottom 5 by a certain gap. The lower side of the wave wheel 2 is connected with a wave wheel 2 shaft, the wave wheel 2 shaft sequentially penetrates through the inner barrel bottom 5 and the outer barrel bottom, the lower end of the wave wheel 2 shaft is connected with a motor of the washing machine directly or through a transmission mechanism, so that the wave wheel 2 can rotate around the shaft relatively, and the rotating wave wheel 2 can be used for stirring washing water in the inner barrel to generate rotating water flow.

With the above arrangement, the washing water flowing into the inner tub 1 from the water passing part 4 can be agitated by the rotary pulsator 2 and flow in the outer circumferential direction; and because the water escape holes 3 are positioned at the periphery of the inner barrel bottom 5 relative to the water passing part 4, at least part of the rotating water flow flowing to the periphery can directly flow out through the water escape holes 3, thereby realizing the improvement of the fluidity of the washing water in the inner barrel 1, and particularly achieving the remarkable technical progress of increasing the water changing rate of the washing water below the impeller 2 and at the position of the inner barrel bottom 5.

In this embodiment, the water passing part 4 is disposed in the middle of the inner tub bottom 5, and the water draining hole 3 is disposed on the inner tub bottom 5 on the outer peripheral side of the filter assembly 7 to improve the water flow of the washing water of the washing machine. Preferably, the drain hole 3 is provided at the outer periphery of the inner tub bottom 5. Therefore, the middle part and the periphery of the inner barrel bottom 5 are respectively provided with the openings communicated with the inside and the outside of the inner barrel 1, so that when a washing program is executed by the washing machine, washing water can flow back into the inner barrel from the water passing part 4 in the middle part of the inner barrel bottom 5 and flow out of the inner barrel from the water drainage holes 3 in the periphery of the inner barrel bottom 5, the interference influence between the washing water and the washing water can be minimized, the flowability of circulating water flow in the washing machine is further improved, and the thread scrap filtering efficiency of the filtering component 7 at the water passing part 4 of the inner barrel bottom 5 is enhanced.

In this embodiment, the filtering component 7 is disposed at the lower side of the inner tub bottom 5 and correspondingly covers the water passing part 4, so that the washing water passing through the water passing part 4 can be filtered by the thread scraps through the filtering component 7.

In the embodiment, a plurality of water drainage holes 3 are arranged on the periphery of the bottom 5 of the inner barrel; preferably, the drain holes 3 at the periphery of the inner barrel bottom 5 are arranged at equal intervals along the circumferential direction, so that the drain holes 3 are arranged relative to the inner barrel bottom 5 in a central symmetry manner, the center of gravity of the inner barrel bottom 5 is positioned on the axis of the inner barrel 1, and the problem of eccentric operation of the inner barrel 1 is avoided.

In this embodiment, the water drain hole 3 is disposed at the lowest position of the inner tub bottom 5 to ensure that all the washing water in the inner tub bottom 5 can flow to the space between the inner tub and the outer tub through the water drain hole 3, so as to effectively prevent the washing water in the inner tub 1 from remaining; meanwhile, when the washing machine executes a washing program, the flowability of the washing water at the bottom 5 of the inner tub can be improved.

Preferably, in this embodiment, the bottom 5 of the inner barrel is a groove structure with an upward opening, and the lower end of the sidewall 8 of the inner barrel is correspondingly sealed and connected with the opening of the bottom 5 of the inner barrel with the groove structure, so as to form a barrel-shaped structure with an open upper end. In this embodiment, the drainage hole 3 is disposed at the connection between the bottom wall and the side wall of the groove-shaped inner tub bottom 5, so that at least a portion of the drainage hole 3 is located at the bottom wall of the groove-shaped inner tub bottom 5 and at least a portion of the drainage hole is located at the side wall of the groove-shaped inner tub bottom 5, so that the washing water flowing along the radial direction of the inner tub 1 and toward the outer periphery of the inner tub 1 can be smoothly discharged from the drainage hole 3 formed at the side wall and the bottom wall of the inner tub bottom 5, and the fluidity of the washing water at the inner tub bottom 5 of the washing machine can be further improved.

In this embodiment, the drainage holes 3 are formed to be inclined downward from the inside to the outside of the inner tub 1, so that the drainage holes 3 formed in the bottom 5 of the inner tub are formed to be inclined downward, so that the washing water in the inner tub 1 can smoothly flow out through the drainage holes 3 inclined downward, and the washing water between the inner and outer tubs can be blocked to a certain extent, thereby preventing the washing water between the inner and outer tubs from flowing back into the inner tub through the drainage holes 3, thereby preventing the problem of the decrease of the thread scrap collecting efficiency.

Preferably, the drainage hole may be configured to have a bent duct, so that water flow between the inner and outer barrels cannot flow into the inner barrel under the blocking of the bent portion of the drainage hole, so as to further reduce the backflow of lint between the inner and outer barrels into the inner barrel through the drainage hole (not shown in the drawings).

In order to further prevent the thread scraps between the inner and outer barrels from flowing back into the inner barrel 1 through the drainage hole 3, a water blocking rib extending downwards or obliquely downwards and downwards towards the side far away from the axis of the inner barrel 1 may be provided at the side of the drainage hole 3 away from the axis of the inner barrel 1 to block the water flow descending between the side walls of the inner and outer barrels and prevent the water flow from flowing back into the inner barrel 1 directly through the drainage hole 3 (not shown in the drawings).

In the embodiment, a flange 6 is arranged at the center of the bottom 5 of the inner barrel; the water passing part 4 is a hollow part arranged on the flange 6, and/or a gap arranged at the joint of the inner barrel bottom 5 and the flange 6, and/or a through hole directly arranged at the middle part of the inner barrel bottom 5. As shown in fig. 2 to 6, in the present embodiment, the water passing part 4 is formed by a plurality of through holes extending along the inner barrel bottom in the radial direction and arranged in the middle of the inner barrel bottom 5 and on the inner barrel bottom 5 at the periphery of the flange 6, and the through holes form the water passing part 4 communicating the inside and the outside of the inner barrel.

In the embodiment, a filtering component 7 covering the water passing part 4 is arranged on one side of the inner barrel bottom 5 and/or the flange 6 facing to the inside and the outside; of course, the filter assembly 7 may be installed on one side of the flange 6 facing the inner tub, or the filter assemblies 7 may be installed on both sides of the flange 6, respectively, so that the filter assemblies 7 may be installed and the lint flowing through the washing water may be filtered by the filter assemblies 7. In this embodiment, the filter assembly 7 may be any structure in the prior art. For example: as shown in fig. 2 to 6, the filter assembly 7 in this embodiment is an annular structure disposed coaxially with the inner tub bottom 5, and the outer peripheral side of the annular filter assembly 7 is lower than the inner peripheral side, so that the inner periphery of the filter assembly 7 is fixedly connected with the lower side of the inner tub bottom 5, and a certain height difference is provided between the outer periphery of the filter assembly 7 and the lower side of the inner tub bottom 5, so that the foreign matter in the tub can pass through the inner tub bottom from the height difference, and the washing process is not affected.

Preferably, in this embodiment, in order to improve the filtering efficiency of the filtering assembly 7 and avoid the residue of the thread scraps on the filtering assembly 7, the filtering assembly 7 is configured as follows: the filtering component 7 comprises a support, a plurality of hollow areas are arranged on the support, one side of each hollow area, which faces the inner barrel, is communicated with the inside of the inner barrel through the water part 4, and the other side of each hollow area is communicated with the outside of the inner barrel. The bracket is fixedly connected with the flange 6 and/or the inner barrel bottom 5; preferably, the bracket is provided with claws so that the bracket can be detachably connected with the flange 6 and/or the inner barrel bottom 5. In this embodiment, the filter screen that covers the fretwork area is laid on the support, the peripheral zone looks sealing connection of the fretwork area on the filter screen and the support for the washing water advances to pass the fretwork area through the filter screen, in order to reach the effect of carrying out comprehensive filtration to the washing water. In this embodiment, the filter screen can be any existing mesh structure, and only needs to have the effect of filtering the thread scraps flowing through the washing water.

By arranging the filtering component 7 into the filtering screen structure, the filtering holes of the filtering screen can be arranged at any position, so that the technical progress of narrowing the filtering holes and improving the thread scrap interception efficiency can be realized; in addition, through setting up filtering component 7 to the filter screen structure of laying on the support, because the support can adopt arbitrary materials such as plastics, metal to constitute for there is the filtering component 7's that support and filter screen constitute surface smoothness obtains showing and promotes, has avoided filtering component 7 edge to have too much burr, has used for a long time and has leaded to the emergence of the thread scrap scheduling problem of remaining.

Example two

As shown in fig. 2, the present embodiment discloses a washing machine, which includes: the washing machine comprises an outer barrel, wherein the inner barrel assembly of the washing machine is arranged in the outer barrel, the impeller 2 is arranged in the inner barrel 1 of the inner barrel assembly of the washing machine, and the inner barrel 1 and the impeller 2 are connected with a motor of the washing machine through a speed reduction clutch, so that the inner barrel 1 and the impeller 2 can respectively or jointly rotate at a certain rotation-stop ratio to realize the treatment of washing, dewatering and other functions on clothes contained in the inner barrel 1.

As shown in fig. 7, the present embodiment further introduces a control method applied to the above washing machine, which specifically includes the following steps:

s1, when a washing machine executes a washing program, a wave wheel rotates at a certain rotation-stop ratio, when washing water flows through a water passing part at the bottom of an inner barrel and flows back to the inner barrel, the returned washing water is filtered by a filtering component, and thread scraps are trapped between the inner barrel and the outer barrel;

s2, after the washing machine finishes a washing program, draining the washing water in the outer barrel to a first set water level higher than the bottom of the inner barrel, controlling the inner barrel and a wave wheel arranged in the inner barrel to rotate together at a first set rotating speed, and enabling the thread scraps and the water in the inner barrel to flow between the inner barrel and the outer barrel from a drainage hole arranged at the bottom of the inner barrel under the action of rotating force;

s3, continuously draining water to a second set water level by the washing machine to enable the water level height of the washing water in the outer barrel to be flush with that of the filtering component, controlling the inner barrel and the impeller arranged in the inner barrel to rotate at a high speed together at a second set rotating speed, and throwing and diffusing thread scraps attached to the filtering component into the washing water between the inner barrel and the outer barrel under the action of centrifugal force;

and S4, continuing draining by the washing machine until all the washing water in the outer barrel is drained, so that the thread scraps diffused into the washing water between the inner barrel and the outer barrel flow out of the outer barrel of the washing machine along with the drainage water flow.

Through the steps, the washing machine can effectively collect the thread scraps in the washing water and thoroughly clean the collected thread scraps in the drainage procedure of the washing machine, so that thread scraps in the washing machine are obviously reduced, and the thread scrap collecting efficiency of the washing machine is effectively improved.

In this embodiment, the specific process of step S1 is as follows: when the washing machine executes a washing program, the impeller rotates at a certain rotation-stop ratio, washing water in the inner barrel is stirred by the impeller to generate rotating water flow, the rotating water flow moves towards the outer periphery under the action of centrifugal force, at least part of water flows through the water drainage holes arranged on the periphery of the bottom of the inner barrel and flows between the inner barrel and the outer barrel, the washing water between the inner barrel and the outer barrel flows back to the inner barrel through the water passing part in the middle of the bottom of the inner barrel, and the backflow water flow is filtered by thread scraps through the filtering component arranged at the water passing part and is intercepted between the inner barrel and the outer barrel.

By the method, the filter assembly arranged at the water passing part at the bottom of the inner barrel can be used for effectively collecting the thread scraps in the washing water in the washing process of the washing machine; particularly, by the method, the washing water reflowing in the inner barrel can directly flow out through the drain holes arranged at the bottom of the inner barrel, so that the mobility of the washing water at the bottom of the inner barrel and below the impeller of the washing machine is improved, and the remarkable technical progress of improving the thread scrap collecting efficiency of the washing machine is achieved.

In this embodiment, the specific process of step S2 is as follows: after the washing machine finishes a washing program and performs drainage, firstly draining washing water in the outer barrel to a first set water level higher than the bottom of the inner barrel, then controlling the inner barrel and a wave wheel arranged in the inner barrel to rotate together at a first set rotating speed for a set time t1, wherein the washing water in the inner barrel flows to a position between the inner barrel and the outer barrel from a water drainage hole under the action of a rotating acting force, and the thread scraps in the inner barrel flow to the position between the inner barrel and the outer barrel along with a water flow I, so that the purpose of completely flowing out and cleaning the thread scraps in the inner barrel is realized; meanwhile, as the washing water in the inner barrel flows towards the outer periphery in a diffused manner, negative pressure is formed at the water passing part at the middle part of the bottom of the inner barrel, water flow between the inner barrel and the outer barrel flows towards the filtering component arranged at the middle part of the bottom of the inner barrel, and thread scraps in the washing water are collected below the filtering component, so that the purpose of collecting the thread scraps flowing out of the inner barrel is achieved.

Preferably, the first set water level in step S2 is slightly higher than the bottom of the inner tub, so that only a small amount of washing water remains in the inner tub, and the washing water in the inner tub is completely discharged by the rotating force, thereby achieving the purpose of effectively cleaning the thread scraps in the inner tub to avoid thread scraps remaining.

In this embodiment, in the step S2, the inner tub and the pulsator disposed therein rotate at a first set rotation speed, which is a medium speed or a low speed; the first set rotation speed may be set to: the rotation speed of the impeller when the washing machine executes a washing program.

In this embodiment, the specific process of step S3 is as follows: after the washing machine finishes the step S2, the washing machine continues to drain water to a second set water level where the water level of the washing water in the outer tub is flush with the water level of the filter assembly, then the inner tub and the impeller arranged in the inner tub are controlled to rotate at a high speed together at a second set rotating speed for a set time t2, and the thread scraps attached to the filter assembly are separated from the filter assembly under the action of the centrifugal force of the high-speed rotation and enter the washing water between the inner tub and the outer tub, so that the thread scraps attached to the filter assembly are diffused into the washing water between the inner tub and the outer tub, and the effect of self-cleaning of the filter assembly is achieved.

In this embodiment, in the step S3, the inner tub and the pulsator disposed therein rotate at a high speed at a second set rotation speed, which is a higher rotation speed than the first set rotation speed; the second set rotation speed may be set to: the rotation speed of the inner tub when the washing machine performs the dehydration process.

In this embodiment, the specific process of step S4 is as follows: after the washing machine performs the step S3, the washing machine continues to drain water until all the washing water in the outer tub is discharged, so that the lint diffused into the space between the inner tub and the outer tub flows out of the outer tub of the washing machine along with the drainage water flow, thereby performing self-cleaning on the lint collected in the washing machine.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An inner tub assembly for a washing machine, comprising: interior bucket, interior bucket bottom are equipped with the inside and outside water portion of crossing of bucket in the intercommunication, cross water portion department and are equipped with filtering component, its characterized in that: the inner barrel bottom is provided with a water drainage hole which is far away from the axis of the inner barrel relative to the water passing part, and the inner barrel is communicated with the outside of the inner barrel through the water drainage hole.

2. The inner tub assembly of claim 1, wherein the water passing part is disposed at the middle of the bottom of the inner tub, the filter assembly is disposed at the lower side of the bottom of the inner tub to cover the water passing part, and the drain hole is disposed at the bottom of the inner tub at the periphery of the filter assembly.

3. The washing machine inner tub assembly as claimed in claim 2, wherein the drain hole is provided at an outer periphery of the inner tub bottom;

preferably, a plurality of water drainage holes are formed in the periphery of the bottom of the inner barrel;

further preferably, the drain holes at the periphery of the bottom of the inner barrel are arranged at equal intervals along the circumferential direction.

4. The washing machine inner barrel assembly according to claim 3, wherein the water drain hole is arranged at the lowest part of the inner barrel bottom;

preferably, the inner barrel bottom is a groove structure which is arranged with an opening upwards, and the drain hole is arranged at the connecting part of the bottom wall and the side wall of the groove.

5. An inner tub assembly for a washing machine as claimed in claim 4, wherein the drain hole is formed to be inclined downwardly from the inside to the outside of the inner tub.

6. An inner barrel assembly of a washing machine as claimed in any one of claims 1 to 5, wherein the inner barrel bottom is provided with a flange at the center, and the water passing part is a hollow part arranged on the flange, and/or a gap arranged at the joint of the inner barrel bottom and the flange, and/or a through hole directly formed at the middle part of the inner barrel bottom.

7. The washing machine inner barrel assembly as claimed in any one of claims 1 to 6, wherein the filtering assembly comprises a support frame, a hollow area is provided on the support frame, the hollow area connects the inside and outside of the inner barrel through the water part, the support frame is fixedly connected with the flange and/or the bottom of the inner barrel, and a filter screen covering the hollow area is provided on the support frame.

8. A washing machine, comprising: an outer tub; the method is characterized in that: an outer barrel is internally provided with an inner barrel assembly of the washing machine as claimed in any one of claims 1 to 7, and a pulsator is arranged in the inner barrel.

9. A control method of the washing machine according to claim 8, characterized in that: when the washing machine executes a washing program, the impeller is driven to rotate, washing water in the inner barrel flows to the outer periphery under the stirring of the impeller, at least part of the washing water flows to a position between the inner barrel and the outer barrel through the drainage holes on the periphery of the bottom of the inner barrel, the washing water between the inner barrel and the outer barrel flows back to the inner barrel through the water passing part in the middle of the bottom of the inner barrel, and the filtering component arranged at the water passing part filters the returned water to trap the thread scraps between the inner barrel and the outer barrel.

10. The control method of a washing machine as claimed in claim 9, wherein after the washing process is finished, the washing machine drains water to a first set water level slightly higher than the bottom of the inner tub, the inner tub is driven to rotate, and the washing water and the thread scraps in the inner tub flow from the first drain hole to between the inner tub and the outer tub under the action of the rotational force;

preferably, the washing machine drains water to a second set water level, the water level of the washing water in the outer barrel is flush with the filtering component, the inner barrel and the impeller are controlled to rotate at high speed together, and the thread scraps attached to the filtering component are separated from the filtering component under the action of the rotating centrifugal force and thrown into the washing water between the inner barrel and the outer barrel;

the washing machine continues to drain water to an empty water level, and the thread scraps in the washing water flow out along with the drained water.

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