CN114855429A

CN114855429A - Control method of washing machine and washing machine

Info

Publication number: CN114855429A
Application number: CN202210429710.0A
Authority: CN
Inventors: 颜灵智; 谢红伟; 赵志强
Original assignee: Haier Smart Home Co Ltd; Chongqing Haier Front Loading Washing Machine Co Ltd
Current assignee: Haier Smart Home Co Ltd; Chongqing Haier Front Loading Washing Machine Co Ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-08-05
Also published as: WO2023202233A1

Abstract

The application belongs to the technical field of household appliances, and particularly relates to a control method of a washing machine and the washing machine, wherein the washing machine comprises a body, a water inlet, a water outlet and a water return port, wherein the body is provided with a washing cavity; the drainage filter comprises a first filter cavity and a second filter cavity which are sequentially communicated, the first filter cavity is communicated with the water outlet, the second filter cavity is provided with a first water outlet communicated with the water return port and a second water outlet communicated with the water outlet, and a first filter element is arranged in the first filter cavity; the second filter chamber is internally provided with a second filter element, the filtering precision of the first filter element is smaller than that of the second filter element, and the second filter element can move in the second filter chamber under the action of external force so as to selectively open one of the first water outlet and the second water outlet and block the other one of the first water outlet and the second water outlet. This application can improve drainage efficiency, when improving washing machine to the filter effect of little line bits, reduces the environmental pollution that little line bits caused.

Description

Control method of washing machine and washing machine

Technical Field

The application relates to the technical field of household appliances, in particular to a washing machine and a control method thereof.

Background

With the continuous improvement of the performance of the washing machine, people pursue a cleaning ratio and simultaneously gradually improve environmental awareness, and pay more and more attention to the reduction of the discharge amount of the micro-thread scraps of the washing machine.

Among the correlation technique, washing machine includes the organism and with the drainage pipe way of the washing chamber intercommunication of organism, wherein, is provided with the filter screen on the drainage pipe way, and when the washing water in the washing chamber passes through the drainage pipe way discharge organism outside, the filter screen is used for filtering the thread scraps in the washing water to avoid causing the winding to the drainage pump impeller, reduce drainage efficiency.

However, in the related art, in order to ensure the drainage efficiency of the washing machine, the filter net can only filter relatively thick thread scraps, and cannot filter micro thread scraps in the washing water, so that the micro thread scraps discharged with the washing water cause environmental pollution.

Disclosure of Invention

In view of the above problems, embodiments of the present application provide a control method for a washing machine and a washing machine, which are used for solving the technical problem that micro thread scraps discharged along with washing water cause environmental pollution due to the fact that micro thread scraps in the washing water cannot be filtered while the washing machine ensures the drainage efficiency.

In order to achieve the above object, the embodiments of the present application provide the following technical solutions:

in a first aspect, an embodiment of the present application provides a washing machine, including: a body having a washing chamber for receiving washing water; the washing cavity is provided with a water outlet and a water return port; the drainage filter comprises a first filtering cavity and a second filtering cavity which are sequentially communicated, the first filtering cavity is communicated with the drainage port, the second filtering cavity is provided with a first water outlet and a second water outlet, the first water outlet is communicated with the water return port, and the second water outlet is communicated with the drainage pipe of the body; the first filtering piece is arranged in the first filtering cavity and used for filtering the thread scraps entering the first filtering cavity; the second filter element is arranged in the second filter cavity and used for filtering the thread scraps entering the second filter cavity, wherein the filter precision of the first filter element is smaller than that of the second filter element; and the second filter element can move in the second filter cavity under the action of external force so as to selectively open one of the first water outlet and the second water outlet and close the other one of the first water outlet and the second water outlet.

In an alternative embodiment, a driving member is disposed at a communication position of the first filtering chamber and the second filtering chamber, and the driving member is used for adjusting a flow rate of the washing water, so that the magnitude of the external force applied by the washing water to the second filtering member is adjustable.

In an optional embodiment, the drainage filter further comprises an elastic member, one end of the elastic member is connected with one end of the second filter element, which is far away from the first filter cavity, and the other end of the elastic member is connected with the cavity wall of one end of the second filter cavity, which is far away from the first filter cavity; when the external force applied to the second filter element is larger than the elastic force of the elastic element, the second filter element moves to one side departing from the first filter cavity to open a second water outlet and block the first water outlet; when the external force applied to the second filter element is smaller than the elastic force of the elastic element, the second filter element moves along the elastic force direction of the elastic element to open the first water outlet and block the second water outlet.

In an alternative embodiment, the resilient member is a compression spring.

In an optional embodiment, one end of the second filter chamber, which faces away from the first filter chamber, is open, a first hatch for blocking the open is arranged at the open, the first hatch is detachably connected to the open, and one end of the elastic member, which faces away from the first filter chamber, is connected to the first hatch.

In an alternative embodiment, a sealing element is arranged between the second filter element and the wall of the second filter chamber, which sealing element is used to seal a gap between the second filter element and the wall of the second filter chamber.

In an optional embodiment, an end of the first filter chamber away from the second filter chamber is an opening, a second hatch for plugging the opening is disposed at the opening, the second hatch is detachably connected to the opening, and an end of the first filter member away from the second filter chamber is connected to the second hatch.

In an alternative embodiment, the first filter element is in one piece with the second hatch.

In an optional embodiment, the body includes a housing having an accommodating space, the drain filter is located in the accommodating space, a first mounting hole and a second mounting hole are provided on a front surface of the housing, the first mounting hole and the second mounting hole are respectively communicated with the accommodating space, the first hatch is embedded in the first mounting hole, and the second hatch is embedded in the second mounting hole.

In a second aspect, the present application also provides a control method of a washing machine, for the washing machine as described above, the method comprising:

draining the washing water in the washing cavity to a first filtering cavity of a drainage filter so as to filter the thread scraps in the washing water entering the first filtering cavity;

discharging the washing water filtered by the first filtering cavity into a second filtering cavity of the drainage filter so as to filter the thread scraps in the washing water entering the second filtering cavity, wherein the filtering precision of the second filtering cavity is greater than that of the first filtering cavity;

and the first water outlet or the second water outlet of the second filtering cavity can be selectively opened, so that the washing water in the second filtering cavity enters the washing cavity from the first water outlet or is discharged out of the body from the second water outlet.

As above, the present application provides a control method of a washing machine and a washing machine. As can be understood by those skilled in the art, the present application provides a washing machine including a body having a washing chamber for receiving washing water, the washing chamber having a drain port and a return port; the drainage filter is also arranged in the body and comprises a first filtering cavity and a second filtering cavity which are sequentially communicated, the first filtering cavity is communicated with the drainage port, the second filtering cavity is provided with a first water outlet and a second water outlet, the first water outlet is communicated with the water return port, and the second water outlet is communicated with the drainage pipe of the body; a first filtering piece is arranged in the first filtering cavity and used for filtering thread scraps entering the first filtering cavity; the second filter chamber is internally provided with a second filter piece for filtering the thread scraps entering the second filter chamber, wherein the filtering precision of the first filter piece is smaller than that of the second filter piece, and the second filter piece can move in the second filter chamber under the action of external force so as to selectively open one of the first water outlet and the second water outlet and block the other one of the first water outlet and the second water outlet. Through above-mentioned scheme, can filter the little thread bits in the washing water when guaranteeing washing machine's drainage efficiency, reduce the pollution that little thread bits caused the environment.

In addition to the technical problems solved by the embodiments of the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions, other technical problems solved by the control method of the washing machine and the washing machine provided by the embodiments of the present application, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.

Drawings

Fig. 1 is a schematic front view of a washing machine according to an embodiment of the present application;

FIG. 2 is a schematic view of an internal structure of a washing machine according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a drain filter in a washing machine according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of the internal structure of FIG. 3;

FIG. 5 is a schematic view of the second filter element of FIG. 4 in a first position within the second filter cavity;

FIG. 6 is a schematic view of the second filter element of FIG. 4 in a second position within the second filter cavity;

fig. 7 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present disclosure.

Reference numerals:

100-washing machine; 110-a body; 111-a housing;

112-outer cylinder; 113-inner cylinder; 114-a washing chamber;

1141-a water outlet; 1142-a water return port; 115-a door;

120-a drainage filter; 121-a first filter chamber; 1211-water injection port;

122-a second filter chamber; 1221-a first water outlet; 1222-a second water outlet;

123-a first filter element; 124-a second filter element; 125-a drive member;

126-a resilient member; 127-a seal; 128-a first hatch;

129-a second hatch; 130-a drain pipe.

Detailed Description

Microwire debris, also called microfibers, refers to fiber particles having a length of less than 5 mm.

In 2011, brown et al proposed that home washing of synthetic fiber garments is an important source of microfibers, and experiments showed that a single wash of a garment with synthetic fibers can release over 1900 fiber particles, which led to attention paid to the source of microfibers released by home washing. The international union for natural conservation published a research report on microfibers discharged into the ocean and soil in 2017, and the report shows that washing of synthetic fabrics can release 35% of fibers into washing water, causing pollution to the ocean and soil. For example, after ingestion of microfibrils in the sea by marine organisms such as fish, humans ingest marine animals such as fish having microfibrils in their bodies, which causes damage to the human body such as intestinal tract injury.

In addition, after the microfibers discharged along with the washing water enter the soil environment and are combined with other organic pollutants, the microfibers have small particle size, large specific surface area and strong adsorption capacity, so that the physicochemical properties of the soil can be changed, and the health of the soil ecosystem is influenced.

Among these, microfibrils affect animals in the soil mainly through the feeding pathway: after the microfibrils are ingested by soil animals, intestinal injury can be caused, the microfibrils are easy to agglomerate in the body, the ingestion and excretion are affected, and the survival rate, the body length and the reproductive capacity are obviously reduced.

Microfibers may alter the microbial community and biodiversity of the soil ecosystem: the existence of the microfibers in the soil can become carriers of other toxic and harmful substances, and the microfibers can affect microorganisms in the soil along with the migration of the microfibers, so that the health of a soil ecosystem is affected.

In 2013, the number of the global household washing machines reaches 8.4 hundred million according to statistics, and with the increasing population number, the consumption amount of the global synthetic fiber textile, the number of the washing machines and the washing frequency are increased, so that the microfiber discharged along with the washing water is reduced.

In the related art, a filter screen for collecting lint in washing water is provided on a drain line of a washing machine, and when washing water in a washing chamber is discharged out of a machine body through the drain line, the filter screen is used for filtering lint in the washing water, thereby reducing the amount of lint in the washing water. However, the size of the mesh of the filter net directly affects the drainage efficiency of the washing machine, and the too small mesh of the filter net causes the drainage efficiency of the washing machine to be reduced, thereby causing the washing cycle of the washing machine to be prolonged, so that the filter net with relatively large mesh is generally used in the related art to improve the drainage efficiency of the washing machine.

However, the filter net with larger meshes can only filter the thread scraps with larger size, the filtering precision is very low, the filtering effect is poor, a large amount of micro thread scraps still exist in the washing water, and the micro thread scraps can pollute the environment along with the discharge of the washing water.

In order to solve the above problems, the present application provides a control method of a washing machine and a washing machine. The application provides a washing machine can filter the little line bits in the washing water when guaranteeing washing machine high drainage efficiency, reduces the little line bits in the washing water to avoid the environmental pollution that little line bit caused.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

Example one

The specific structure of the drum washing machine will be described as follows:

fig. 1 is a schematic front view of a washing machine according to an embodiment of the present application; FIG. 2 is a schematic view of an internal structure of a washing machine according to an embodiment of the present disclosure; FIG. 3 is a schematic structural diagram of a drain filter in a washing machine according to an embodiment of the present disclosure; fig. 4 is a schematic view of the internal structure of fig. 3. As shown in fig. 1 and 2, an embodiment of the present application provides a washing machine 100, including: a body 110, the body 110 having a washing chamber 114 for receiving washing water. Specifically, the body 110 includes a housing 111, the housing 111 has a receiving space, an outer tub 112 and an inner tub 113 sleeved in the outer tub 112 are disposed in the receiving space, wherein the outer tub 112 and the inner tub 113 are coaxially disposed, an annular washing cavity 114 is formed between the outer tub 112 and the inner tub 113, the washing cavity 114 is used for receiving washing water, the clothes to be washed are placed in the inner tub 113, and a plurality of through holes are formed in a wall of the inner tub 113, so that the washing water in the washing cavity 114 can enter the inner tub 113 to wash the clothes.

Alternatively, the tub 112 has a water discharge port 1141 and a water return port 1142 communicating with the washing chamber 114, so that the washing water in the washing chamber 114 can be discharged out of the washing chamber 114 through the water discharge port 1141, or the washing water can be introduced into the washing chamber 114 again through the water return port 1142 for circulation washing.

In some embodiments, the water discharge port 1141 and the water return port 1142 may be spaced at the bottom of the tub 112.

Optionally, as shown in fig. 2 to 4, a drain filter 120 is disposed in the accommodating space of the casing 111, the drain filter 120 includes a first filter chamber 121 and a second filter chamber 122 which are sequentially communicated, the first filter chamber 121 is communicated with a drain port 1141 of the washing chamber 114, for example, the first filter chamber 121 has a water filling port 1211, and the drain port 1141 of the washing chamber 114 is communicated with the water filling port 1211 through a communication pipe, so that the washing water enters the first filter chamber 121 of the drain filter 120 through the drain port 1141 and the water filling port 1211.

In addition, the second filter chamber 122 has a first water outlet 1221 and a second water outlet 1222, the first water outlet 1221 may be communicated with the water return port 1142 of the washing chamber 114 through a communication pipe, and the second water outlet 1222 is communicated with the drain pipe 130 of the washing machine 100, so that when the first water outlet 1221 is opened, the washing water in the washing chamber 114 flows through the first filter chamber 121, the second filter chamber 122, and then returns to the washing chamber 114 from the water return port 1142 through the first water outlet 1221 to continue washing, thereby forming an internal circulation channel of the washing water; when the second water outlet 1222 is opened, the washing water in the washing chamber 114 passes through the first filter chamber 121 and is discharged out of the washing machine 100 through the second water outlet 1222, forming a drain passage for the washing water.

Optionally, with continued reference to fig. 4, a first filter element 123 is disposed in the first filter cavity 121, and the first filter element 123 is configured to filter the lint entering the first filter cavity 121; a second filter element 124 is disposed within the second filter cavity 122, the second filter element 124 being configured to filter lint that enters the second filter cavity 122.

Wherein, the filtering precision of the first filter member 123 is smaller than that of the second filter member 124, for example, the length, particle size and other dimensions of the thread scraps filterable by the first filter member 123 are larger than those of the second filter member 124, so that the thick thread scraps in the washing water are filtered by the first filter member 123, and the micro thread scraps in the washing water are filtered by the second filter member 124, thus, the filtering effect of the thread scraps in the washing water can be improved, the micro thread scraps in the washing water are reduced, and the environmental pollution is reduced.

In addition, the second filter member 124 is movable within the second filter chamber 122 under an external force to selectively open one of the first and

second water outlets

1221 and 1222 and close the other of the first and

second water outlets

1221 and 1222.

Alternatively, the second water outlet 1222 is positioned between the first water outlet 1221 and the first filter chamber 121, so that the washing water does not pass through the second filter 124 when the second water outlet 1222 is opened for drainage, thereby improving the efficiency of drainage and thus shortening the washing cycle.

It should be noted that, after the second filter element 124 is installed in the second filter cavity 122, the sidewall of the second filter element 124 just blocks the second water outlet 1222, so that when the external force applied to the second filter element 124 is not enough to push the second filter element 124 to move, the washing water can only enter the washing cavity 114 of the washing machine 100 again through the first water outlet 1221.

When the external force applied to the second filter member 124 pushes the second filter member 124 to move in a direction away from the first filter chamber 121, the second water outlet 1222 is opened, and the sidewall of the second filter member 124 blocks the first water outlet 1221, so that the washing water is discharged out of the washing machine 100 through the second water outlet 1222.

In the above solution, when the second water outlet 1222 is blocked, and the first water outlet 1221 is opened, water in the washing chamber 114 can enter the first filter chamber 121 through the water discharge port 1141, so as to filter coarse debris in the washing water by the first filter 123, the filtered washing water enters the second filter chamber 122, the micro-thread scraps in the washing water are filtered again by the second filter 124, and the filtered washing water enters the washing chamber 114 again through the first water outlet 1221 and the water return port 1142, so that, when the washing machine 100 is in a washing operation, for example, in the washing machine 100, during the main washing and rinsing stages, the washing water is circulated in the washing chamber 114, the first filtering chamber 121 and the second filtering chamber 122, so that the washing water is repeatedly filtered in the washing process of the clothes, the tiny thread scraps contained in the washing water are ensured to be extremely small, the filtering effect is good, and the pollution of the tiny thread scraps to the environment is reduced.

After washing, in the spin-drying or draining stage, the second filter 124 moves in the second filter cavity 122 under the action of external force to open the second water outlet 1222 and block the first water outlet 1221 to close the internal circulation channel of the washing water, and during draining, the washing water in the washing cavity 114 passes through the second water outlet 1222 and is drained out of the body 110 through the drain pipe 130 of the washing machine 100 without passing through the second filter 124, so that the washing water can be drained quickly, the draining efficiency can be improved, and the whole washing cycle can be shortened.

Therefore, the washing machine provided by the embodiment of the application can improve the filtering precision of the micro thread scraps and reduce the pollution of the micro thread scraps to the environment; meanwhile, the drainage efficiency can be improved, and the whole washing period of the washing machine can be shortened.

It should be noted that, because the washing water is continuously filtered in a circulating way in the washing process, after the washing is finished, the micro thread scraps contained in the discharged washing water are very little, thereby reducing the pollution of the micro thread scraps to the environment.

Alternatively, the first filter member 123 may be a filter element for filtering coarse lint, and the second filter member 124 may be a filter element for filtering fine lint, and it is understood that the filter mesh of the first filter member 123 is larger than that of the second filter member 124, for example, the second filter member 124 may employ a multi-layer filter element with ultra-high density mesh, and the like, so that the second filter member 124 can filter fine lint with a small length or particle size to improve the filtering effect of the washing machine 100.

In addition, in this application, the drainage filter 120 includes, but is not limited to, the first filter 123 and the second filter 124, and specifically, a plurality of filters with different filtering precision may be provided according to actual requirements, so as to further improve the filtering effect and reduce the environmental pollution caused by the micro thread scraps.

Optionally, a driving member 125 is disposed at a communication position of the first filtering chamber 121 and the second filtering chamber 122, and the driving member 125 is used for adjusting a flow rate of the washing water, so that the magnitude of the external force applied by the washing water to the second filtering member 124 is adjustable.

It is understood that the external force applied to the second filter 124 may be a pressure applied to the second filter 124 by the washing water while flowing, and the magnitude of the pressure applied to the second filter 124 by the washing water may vary according to the variation of the flow rate of the washing water.

In some embodiments, the driving member 125 may be an impeller, wherein an impeller cavity may be disposed between the first filter cavity 121 and the second filter cavity 122, that is, the first filter cavity 121 and the second filter cavity 122 are communicated with each other through the impeller cavity, and the impeller is disposed in the impeller cavity.

The impeller is arranged between the first filter member 123 and the second filter member 124, the pressure applied to the second filter member 124 by the washing water is different when the rotation speed of the impeller is different, when the pressure applied to the second filter member 124 by the washing water is not enough to push the second filter member 124 to move, the second water outlet 1222 is blocked, the first water outlet 1221 is opened, so that the internal circulation passage of the washing machine 100 is opened, and the drainage passage is closed, thus, thick thread scraps, cloth strips and the like in the washing water are filtered by the first filter member 123 during the washing process, and the thick thread scraps, cloth strips and the like can be prevented from winding the impeller; the micro lint in the washing water is filtered by the second filter 124, thereby achieving the purpose of reducing the micro lint in the washing water.

In the above-mentioned scheme, the pressure applied by the washing water to the second filter element 124 can be adjusted by adjusting the operating power of the impeller to make the rotation speed of the impeller different so as to change the flow rate of the washing water entering the second filter cavity 122.

For example, when the washing machine 100 is used for washing, the impeller can be operated at a low power to rotate the impeller at a low rotation speed, and it can be understood that when the impeller is operated at a low power, the noise is low, the energy consumption is low, the pressure of the washing water applied to the second filter 124 is relatively low, and at this time, the pressure applied to the second filter 124 by the washing water is not enough to push the second filter 124 to move, so that the washing water in the washing cavity 114 passes through the first filter cavity 121 and the second filter cavity 122 and then returns to the washing cavity 114 again through the first water outlet 1221 for continuously washing the laundry in the inner tub 113, and the washing water is filtered by the first filter cavity 123 and the second filter cavity 124 respectively, so that coarse lint and micro lint in the washing water can be filtered, and the amount of micro lint in the washing water is extremely low.

When the washing is finished and the spin-drying or draining is performed, the impeller may be operated at a high power to rotate the impeller at a high speed, and at this time, the pressure of the washing water applied to the second filter 124 is relatively high, so that the washing water applies a pressure to the second filter 124 enough to push the second filter 124 to move, so that the second filter 124 blocks the first water outlet 1221 and opens the second water outlet 1222, such that the internal circulation path of the washing water in the washing machine 100 is closed, and the drain path is opened, and the washing water can rapidly exit the washing machine 100 through the first filter chamber 121 and the second water outlet 1222, thereby improving the draining efficiency and shortening the overall washing cycle of the washing machine 100.

Optionally, the drainage filter 120 further includes an elastic member 126, the elastic member 126 is located in the second filter cavity 122, one end of the elastic member 126 is connected to one end of the second filter member 124 away from the first filter cavity 121, and the other end of the elastic member 126 is connected to a cavity wall of one end of the second filter cavity 122 away from the first filter cavity 121; when the impeller runs at a high power, the pressure applied to the second filter element 124 increases, and the pressure applied to the second filter element 124 is enough to overcome the elastic force of the elastic element 126, the elastic element 126 is pushed to compress, so that the second filter element 124 moves to the side away from the first filter cavity 121, thereby opening the second water outlet 1222, and blocking the first water outlet 1221, and realizing the normal drainage of the washing machine 100; as shown in fig. 5 and 6, when the second filter member 124 moves to the side away from the first filter chamber 121 and the part of the second filter member 124 covers the first water outlet 1221, the drainage pressure is increased, which accelerates the second filter member 124 to move to the side away from the first filter chamber 121, so that the second water outlet 1222 is opened and the first water outlet 1221 is blocked, thereby achieving the normal drainage of the washing machine 100 and ensuring the high drainage efficiency.

After the drainage is finished, the operation power of the impeller is reduced, so that the pressure applied to the second filter 124 by the washing water is smaller than the elastic force of the elastic member 126, and thus, the second filter 124 moves along the elastic force direction of the elastic member 126 under the elastic force of the elastic member 126 to reset the second filter 124, i.e., the second filter 124 blocks the second water outlet 1222 and opens the first water outlet 1221, thereby closing the drainage channel of the washing machine 100 and opening the internal circulation channel of the washing water, so that the washing water is continuously filtered and circulated through the internal circulation channel during the washing process, thereby reducing the amount of micro-thread scraps in the washing water, improving the filtering effect, and reducing the pollution of the micro-thread scraps to the environment.

Alternatively, the elastic member 126 may be a compression spring. In addition, the elastic member 126 may have other shapes and structures, and the specific shape and structure thereof may refer to the structure of the elastic member 126 commonly used by those skilled in the art, which is not described herein again.

Optionally, a sealing member 127 is disposed between the second filter element 124 and the wall of the second filter cavity 122, so as to seal a gap between the second filter element 124 and the wall of the second filter cavity 122 through the sealing member 127, thereby playing a waterproof role, so that when washing water applies an impact force to the second filter element 124, the washing water passes through the second filter element 124, and does not pass through a gap between the second filter element 124 and the wall of the second filter cavity 122, so as to ensure a filtering effect.

Illustratively, the seal 127 is a gland that fits over the second filter 124.

Optionally, the sealing element 127 may be made of a material such as rubber, and is not limited specifically.

Optionally, an end of the second filter cavity 122 facing away from the first filter cavity 121 is open, a first hatch 128 for closing the opening is disposed at the opening, the first hatch 128 is detachably connected to the opening, an end of the elastic member 126 facing away from the first filter cavity 121 is connected to the first hatch 128, and another end of the elastic member 126 is connected to the second filter element 124, so that the first hatch 128, the elastic member 126 and the second filter element 124 are connected together, and the second filter element 124 can be taken out by opening the first hatch 128, so as to facilitate replacement or cleaning of the second filter element 124.

In some embodiments, the end of the first filter chamber 121 facing away from the second filter chamber 122 is open, a second hatch 129 is disposed at the opening to close the opening, the second hatch 129 is detachably connected to the opening, and the first filter 123 is connected to the second hatch 129, such that when the second hatch 129 is opened, the first filter 123 can be removed to facilitate replacement or cleaning of the first filter 123.

Alternatively, the first filter 123 and the second hatch 129 may be designed as a single piece, for example, the first filter 123 and the second hatch 129 may be formed as a single piece by bonding, welding, clamping, detachable connection, etc., which may reduce the installation process and the installation cost.

In addition, in order to facilitate the user to detach the first hatch 128 and the second hatch 129, in the embodiment of the present application, as shown in fig. 1, the first hatch 128 and the second hatch 129 may be mounted on the front surface of the chassis 111, wherein the front surface of the chassis 111 is respectively provided with a first mounting hole and a second mounting hole which are communicated with the accommodating space of the chassis 111, the first hatch 128 may be embedded in the first mounting hole, and the second hatch 129 may be embedded in the second mounting hole, so that the user may directly open the first hatch 128 and the second hatch 129 on the front surface of the chassis 111 to replace or clean the second filter 124 and the first filter 123, thereby facilitating the user operation and improving the user experience.

It is understood that the front surface of the cabinet 111 of the washing machine 100 refers to a surface facing a user when the user operates the washing machine 100, which is the front surface of the cabinet 111, that is, the front surface of the washing machine 100, and the front surface of the washing machine 100 is provided with the door 115 of the washing machine 100, and the user can open the door 115 to put laundry into the drum 113 or take laundry out of the drum 113.

Alternatively, in order to provide both the first and

second hatches

128 and 129 on the front side of the housing 111, in the embodiment of the present application, the drain filter 120 may be provided with an elbow structure, such as a U-shaped structure, to facilitate the assembly and disassembly of the first and

second hatches

128 and 129, thereby facilitating the replacement and cleaning of the second and

third filter members

124 and 124. In addition, the drainage filter 120 may be provided in other shapes and structures, and the specific shape and structure may be optimized as long as it is convenient for a user to replace and clean, and is not particularly limited herein.

Example two

Fig. 7 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present disclosure. As shown in fig. 7, an embodiment of the present application further provides a control method of a washing machine, which is applied to the washing machine provided in the foregoing embodiment, and the method specifically includes:

step S101: and draining the washing water in the washing cavity to a first filtering cavity of a drainage filter so as to filter the thread scraps in the washing water entering the first filtering cavity.

Wherein, a first filter element, for example, a filter element with relatively large filter mesh is arranged in the first filter cavity, so as to be used for filtering coarse threads, cloth strips and the like in the washing water.

Step S102: and discharging the washing water filtered by the first filtering cavity into a second filtering cavity of the drainage filter so as to filter the thread scraps in the washing water entering the second filtering cavity, wherein the filtering precision of the second filtering cavity is greater than that of the first filtering cavity.

Wherein, the second filter chamber is internally provided with a second filter element which can be a filter element with dense multi-layer filter meshes and can filter the micro thread scraps in the washing water, thereby reducing the quantity of the micro thread scraps in the washing water, improving the filtering effect and reducing the environmental pollution caused by the micro thread scraps.

Step S103: and the first water outlet or the second water outlet of the second filtering cavity can be selectively opened, so that the washing water in the second filtering cavity enters the washing cavity from the first water outlet or is discharged out of the body from the second water outlet.

It can be understood that, when washing, the first water outlet is always in the open state, and the second water outlet is in the closed state, so that the washing water enters the drainage filter through the water outlet, and after being filtered, the washing water returns to the washing cavity again through the first water outlet and the water return port, so that the washing water is continuously filtered through the internal circulation, and the micro thread scraps in the washing water can be reduced; when the washing is finished and the water is drained, the first water outlet is blocked and the second water outlet is opened, so that the washing water is drained out of the washing machine through the water outlet and the second water outlet through the water drainage pipe.

In addition, when the washing water is discharged, the first water outlet is in a blocking state, so that the washing water is directly discharged from the second water outlet after entering the drainage filter, the drainage efficiency of the washing machine can be improved, and the washing cycle of the washing machine is shortened.

The application provides a control method of a washing machine and the washing machine. The washing machine comprises a body, a water inlet, a water outlet, a water return port and a water outlet, wherein the body is provided with a washing cavity for containing washing water; the drainage filter is also arranged in the body and comprises a first filtering cavity and a second filtering cavity which are sequentially communicated, the first filtering cavity is communicated with the drainage port, the second filtering cavity is provided with a first water outlet and a second water outlet, the first water outlet is communicated with the water return port, and the second water outlet is communicated with the drainage pipe of the body; a first filtering piece is arranged in the first filtering cavity and used for filtering thread scraps entering the first filtering cavity; the second filter chamber is internally provided with a second filter piece for filtering the thread scraps entering the second filter chamber, wherein the filtering precision of the first filter piece is smaller than that of the second filter piece, and the second filter piece can move in the second filter chamber under the action of external force so as to selectively open one of the first water outlet and the second water outlet and block the other one of the first water outlet and the second water outlet. Through above-mentioned scheme, when can improve washing machine's drainage efficiency, improve washing machine to the filter effect of little line bits, reduce the environmental pollution that little line bits caused.

In the description of the present application, it is to 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

In the description of the present disclosure, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing and simplifying the present disclosure, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure.

The terms "first" and "second" in the description and claims of the present application and the above description of the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or display that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or display.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A washing machine, characterized by comprising:

a body having a washing chamber for receiving washing water; the washing cavity is provided with a water outlet and a water return port;

the drainage filter comprises a first filtering cavity and a second filtering cavity which are sequentially communicated, the first filtering cavity is communicated with the drainage port, the second filtering cavity is provided with a first water outlet and a second water outlet, the first water outlet is communicated with the water return port, and the second water outlet is communicated with the drainage pipe of the body;

the first filter piece is arranged in the first filtering cavity and used for filtering the thread scraps entering the first filtering cavity;

the second filter element is arranged in the second filter cavity and used for filtering the thread scraps entering the second filter cavity, wherein the filtering precision of the first filter element is smaller than that of the second filter element; and the second filter element can move in the second filter cavity under the action of external force so as to selectively open one of the first water outlet and the second water outlet and close the other one of the first water outlet and the second water outlet.

2. A washing machine as claimed in claim 1, wherein a driving member is provided at a communication between the first filtering chamber and the second filtering chamber, the driving member being adapted to adjust a flow rate of the washing water so that an external force applied to the second filter member by the washing water is adjustable.

3. A washing machine as claimed in claim 2 wherein the drain filter further comprises a resilient member, one end of the resilient member being connected to an end of the second filter element facing away from the first filter chamber, the other end of the resilient member being connected to a wall of the second filter chamber facing away from the first filter chamber;

when the external force applied to the second filter element is larger than the elastic force of the elastic element, the second filter element moves to one side departing from the first filter cavity to open a second water outlet and block the first water outlet;

when the external force applied to the second filter element is smaller than the elastic force of the elastic element, the second filter element moves along the elastic force direction of the elastic element to open the first water outlet and block the second water outlet.

4. A washing machine as claimed in claim 3 wherein the resilient member is a compression spring.

5. A washing machine as claimed in claim 3 wherein the end of the second filter chamber facing away from the first filter chamber is open, a first hatch is provided at the opening to close the opening, the first hatch is detachably connected to the opening, and the end of the resilient member facing away from the first filter chamber is connected to the first hatch.

6. A washing machine according to any of claims 1-5, wherein a seal is provided between the second filter element and a wall of the second filter chamber for sealing a gap between the second filter element and the wall of the second filter chamber.

7. A washing machine as claimed in claim 5 wherein the end of the first filter chamber facing away from the second filter chamber is open, a second hatch is provided at the opening to close the opening, the second hatch is removably connected to the opening, and the end of the first filter element facing away from the second filter chamber is connected to the second hatch.

8. A washing machine as claimed in claim 7 wherein the first filter element is integral with the second hatch.

9. The washing machine as claimed in claim 7, wherein the body includes a cabinet having an accommodating space, the drain filter is located in the accommodating space, a first mounting hole and a second mounting hole respectively communicating with the accommodating space are formed on a front surface of the cabinet, the first hatch is fitted at the first mounting hole, and the second hatch is fitted at the second mounting hole.

10. A control method of a washing machine, for a washing machine according to any one of claims 1 to 9, the method comprising: