Washing machine

Abstract

The invention discloses a washing machine, relates to the technical field of washing machines, and aims to solve the problem that the filtering effect is poor when washing water flows out of a filter screen through self weight or water pressure. The washing machine comprises a machine shell, a barrel body and a filtering device. A mounting cavity is formed in the machine shell and used for mounting the barrel body and other assemblies. A washing cavity is formed in the barrel body to contain clothes to be washed, and a sewage discharging hole is further formed in the barrel body to discharge washing water in the washing cavity. The filtering device comprises an outer shell, a filtering net and a driving assembly, the filtering net is arranged in the containing cavity of the outer shell, and the driving assembly is arranged outside the outer shell and connected with the filtering net to drive the filtering net to rotate, so that washing water entering the filtering net from the washing cavity enters the containing cavity through the peripheral wall of the filtering net under the action of centrifugal force; and then the sewage is discharged through the sewage discharge hole.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and in particular to a washing machine. Background Art

[0002] A washing machine can use electrical energy to generate mechanical action to wash clothes, and it is a machine device that can replace manual washing.

[0003] Synthetic clothes contain microplastics such as polyester fibers and acrylic fibers, and most of them are non-biodegradable plastics. When using a washing machine to wash clothes made of synthetic materials, one piece of clothing can produce thousands of microplastic fibers. If the washing water is directly discharged into the underground pipeline, the washing water will flow into rivers and the ocean, be swallowed by fish and other marine organisms, enter the food chain, and finally reach the human body.

[0004] Therefore, in order to reduce the microplastics discharged into natural water bodies and protect natural water bodies, it is necessary to filter the washing water. Usually, a filter screen is set to filter the washing water. When filtering, the washing water flows through the filter screen by gravity or water pressure, so that dirt is intercepted by the filter screen, and the washing water flows out of the filter screen by its own weight or water pressure, and the filtering effect is not good. Summary of the Invention

[0005] The purpose of the present invention is to provide a washing machine, aiming to solve the problem that the filtering effect is not good when the washing water flows out of the filter screen by its own weight or water pressure.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The present invention provides a washing machine, including a machine shell, a barrel body and a filtering device. Among them, an installation cavity is formed inside the machine shell, and the installation cavity is used to install and set other components of the washing machine, providing protection for the components arranged therein. For example, the barrel body is arranged in the installation cavity, and a washing cavity is formed inside the barrel body, and the clothes to be washed can be put into the washing cavity for cleaning. Further, a sewage discharge hole is also opened on the barrel body to discharge the washing water in the washing cavity. The discharged washing water can enter the filtering device and be discharged after being filtered by the filtering device.

[0008] The filtering device can include an outer shell body, a filter screen and a driving component. Among them, a containing cavity is formed inside the outer shell body, and the outer shell body is used to protect and support the devices arranged inside it, and is used to seal the devices arranged inside the outer shell body.

[0009] Further, a first water inlet and a first water outlet are provided on the outer casing, and both the first water inlet and the first water outlet are communicated with the accommodating cavity. In addition, the first water inlet is also communicated with the sewage discharge hole. For example, the first water inlet is communicated with the sewage discharge hole through a sewage discharge pipe. Furthermore, the drain pump of the washing machine can pump the washing water into the sewage discharge pipe through the sewage discharge hole, and the washing water can flow into the first water inlet along the sewage discharge pipe.

[0010] The filter screen is arranged in the accommodating cavity of the outer casing. A filter screen opening is provided at one end of the filter screen close to the first water inlet, and the filter screen opening can be communicated with the first water inlet so that the washing water can flow into the interior of the filter screen after flowing out of the first water inlet.

[0011] The driving assembly is connected to the outer casing and is also connected to the filter screen. The driving assembly is used to drive the filter screen to rotate around the axis of the filter screen so that the washing water entering the filter screen from the washing cavity enters the accommodating cavity of the outer casing through the peripheral wall of the filter screen under the action of centrifugal force, and then is discharged through the first water outlet provided on the outer casing. Under the action of the driving assembly, the filter screen can rotate around the axis of the filter screen, and then under the action of centrifugal force, the washing water in the filter screen is discharged into the accommodating cavity through the peripheral wall of the filter screen.

[0012] During the continuous inflow of the washing water into the filter screen, a certain pressure difference will be generated between the inside and outside of the filter screen. The washing water in the filter screen flows into the accommodating cavity through the filter holes under the action of the pressure difference and its own gravity. The driving assembly is connected to the filter screen and can drive the filter screen to rotate around its own axis. In this way, when the filter screen rotates, it can drive the washing water inside the filter screen to rotate, and the efficiency of discharging the washing water from the filter screen under the action of centrifugal force will be higher. Compared with ordinary filtering equipment, driving the filter screen to rotate through the driving assembly can improve the filtering efficiency and can shorten the time for the washing machine to discharge the washing water to a certain extent.

[0013] In addition, the washing water contains a large amount of lint (including microplastics), and these lint are likely to deposit at the bottom of the filter screen under the action of their own gravity. There is also a part of the lint that may adhere to the inner wall of the filter screen due to being intercepted by the filter holes. If a large amount of lint adheres to the inner wall of the filter screen, it may cause the filter screen to be blocked, resulting in the washing water not being able to be discharged smoothly and affecting the filtering effect.

[0014] However, the filtering device provided in this application includes a driving component, which can drive the filter screen to rotate at a high speed. When the filter screen rotates at a high speed, it can drive the washing water inside it to rotate. In this way, the washing water inside the filter screen rotates and flows. On the one hand, the rotating water flow can stir the lint deposited at the bottom of the filter screen. On the other hand, the water flow can wash the lint attached to the inner wall of the filter screen, so that the lint can fall off from the inner wall of the filter screen and fall back into the water flow again, thereby reducing the occurrence of lint clogging the filter screen, improving the filtering effect, and reducing the number of times the user needs to replace or clean the filter screen.

[0015] In some embodiments of this application, the filtering device further includes a sealing cover. An inlet chamber is formed inside the sealing cover. The sealing cover is provided with a second water inlet and a second water outlet. The outer housing is provided with a mounting hole, and the first water inlet is opened close to the mounting hole. The sealing cover is disposed at the mounting hole, and a part of the sealing cover is located in the accommodating chamber. The part of the sealing cover located in the accommodating chamber is sealingly connected to the outer housing. The second water inlet is communicated with the first water inlet. The second water outlet is communicated with the opening of the filter screen.

[0016] In some embodiments of this application, the filtering device further includes a first sealing ring and a second sealing ring. Among them, the first sealing ring abuts between the sealing cover and the outer housing, and the second sealing ring abuts between the sealing cover and the outer housing. The sealing cover is provided with a first clamping portion and a second clamping portion. The first clamping portion and the second clamping portion are arranged at intervals. The first water inlet and the second water inlet are located between the first clamping portion and the second clamping portion. The first clamping portion is a groove, and the first sealing ring is disposed in the first clamping portion. The second clamping portion is a groove, and the second sealing ring is disposed in the second clamping portion.

[0017] In some embodiments of this application, the sealing cover is connected to the hole wall of the mounting hole, and an annular channel is formed between the sealing cover and the hole wall of the mounting hole. The annular channel is respectively communicated with the second water inlet and the first water inlet. And / or, the number of the second water inlets can be multiple, and the multiple second water inlets are spaced apart from each other around the outer circumference of the sealing cover.

[0018] In some embodiments of this application, the filtering device further includes a filter screen cover plate, which is disposed at the opening of the filter screen for covering the opening of the filter screen. The filter screen cover plate is provided with a through hole, and the second water outlet is communicated with the through hole. A abutting portion is provided on the surface of the sealing cover close to the filter screen cover plate, and the abutting portion abuts against the filter screen cover plate.

[0019] In some embodiments of this application, the driving component includes a mounting frame and a driving motor. The mounting frame is located outside the accommodating chamber, and the mounting frame is connected to the outer housing, and the driving motor is connected to the mounting frame.

[0020] In some embodiments of the present application, the filter net includes a peripheral wall and a bottom wall. The peripheral wall is provided with filter holes so that the washing water inside the filter net can enter the accommodation cavity through the filter holes under the action of centrifugal force. The bottom wall is connected to one end of the peripheral wall away from the opening of the filter net and seals the one end of the peripheral wall away from the opening of the filter net. The driving assembly is connected to the bottom wall.

[0021] In some embodiments of the present application, the washing machine may further include a water flow sensor and a controller. The water flow sensor is used to detect whether there is water flowing through the first water inlet. When there is water flowing through the first water inlet, the water flow sensor generates an electrical signal. The controller is electrically connected to the water flow sensor and the driving assembly respectively and is used to obtain the electrical signal. The controller is configured to control the driving assembly to operate when obtaining the electrical signal.

[0022] In some embodiments of the present application, the washing machine may further include a pressure sensor and an alarm. The pressure sensor is used to detect the pressure value inside the filter net. The controller is electrically connected to the pressure sensor and the alarm respectively. The controller is further configured that if the pressure value is less than a preset pressure value and the controller receives the electrical signal, the controller controls the driving assembly to operate. If the pressure value is greater than or equal to the preset pressure value, the controller controls the alarm to operate and also controls the driving assembly to stop operating, and the preset pressure value is greater than 0. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 One of the schematic diagrams of a washing machine provided by an embodiment of the present application;

[0025] Figure 2 One of the schematic diagrams of a washing machine provided by an embodiment of the present application;

[0026] Figure 3 One of the schematic diagrams of a washing machine provided by an embodiment of the present application;

[0027] Figure 4 One of the schematic diagrams of a washing machine provided by an embodiment of the present application;

[0028] Figure 5 One of the schematic diagrams of a filtering device provided by an embodiment of the present application;

[0029] Figure 6 One of the schematic diagrams of a filtering device provided by an embodiment of the present application;

[0030] Figure 7 The third schematic diagram of the filtering device provided by the embodiment of the present application;

[0031] Figure 8 The fourth schematic diagram of the filtering device provided by the embodiment of the present application;

[0032] Figure 9 The first schematic diagram of the sealing cover provided by the embodiment of the present application;

[0033] Figure 10 The fifth schematic diagram of the filtering device provided by the embodiment of the present application;

[0034] Figure 11 The second schematic diagram of the sealing cover provided by the embodiment of the present application;

[0035] Figure 12 The schematic diagram of the filter screen cover plate provided by the embodiment of the present application;

[0036] Figure 13 The schematic diagram of the driving component provided by the embodiment of the present application;

[0037] Figure 14 The schematic diagram of the outer housing provided by the embodiment of the present application;

[0038] Figure 15 The first schematic diagram of the shaft seal provided by the embodiment of the present application;

[0039] Figure 16 The second schematic diagram of the shaft seal provided by the embodiment of the present application;

[0040] Figure 17 The first schematic diagram of the filter screen provided by the embodiment of the present application;

[0041] Figure 18 The second schematic diagram of the filter screen provided by the embodiment of the present application;

[0042] Figure 19 The first schematic diagram of the control flow of the controller provided by the embodiment of the present application;

[0043] Figure 20 The second schematic diagram of the control flow of the controller provided by the embodiment of the present application;

[0044] Figure 21 The sixth schematic diagram of the filtering device provided by the embodiment of the present application.

[0045] Reference numerals:

[0046] 100 - washing machine; 1 - housing; 10 - installation cavity; 11 - barrel; 111 - inner barrel; 112 - outer barrel; 110 - washing cavity; 1100 - sewage discharge hole;

[0047] 2 - Filter device; 21 - Outer housing; 210 - Mounting hole; 2100 - Annular channel; 2101 - Fixed column; 211 - First water inlet; 212 - First water outlet; 22 - Filter screen; 220 - Filter holes; 2200 - Spline fixing hole; 23 - Driving assembly; 231 - Mounting bracket; 2310 - Screw column; 2320 - Motor shaft hole; 232 - Driving motor; 2301 - First mounting hole; 2302 - Second mounting hole; 2303 - Avoidance hole; 2304 - Threaded hole; 2321 - Motor shaft; 23210 - Spline; 2322 - Shaft seal; 23220 - Through hole; 23221 - Buffer zone; 201 - First clamping portion; 2010 - First clamping groove; 202 - Second clamping portion; 2020 - Second clamping groove;

[0048] 3 - Sealing cover; 30 - Water inlet chamber; 31 - Second water inlet; 32 - Second water outlet; 33 - Contact portion; 300 - Handle; 301 - Fixed groove;

[0049] 41 - First sealing ring; 410 - First mounting portion; 42 - Second sealing ring; 420 - Second mounting portion;

[0050] 5 - Filter screen cover plate; 50 - Through hole;

[0051] 61 - Peripheral wall; 62 - Bottom wall;

[0052] 7 - Water flow sensor; 8 - Pressure sensor. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. is the orientation or relative positional relationship based on the orientation shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. Without special instructions, in the case of satisfying the relative positional relationship shown in the accompanying drawings, the above orientation description can be flexibly set during the actual application process.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", and "communicated" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the embodiments of the present invention, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, article or device comprising the element.

[0058] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as being more preferred or having more advantages than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0059] As Figure 1 shown, Figure 1 FIG. 16 is a schematic diagram of a washing machine 100 provided by an embodiment of the present application. The washing machine 100 may be a drum washing machine. The washing machine 100 may include a housing 1, and the housing 1 is used to mount other components of the washing machine 100.

[0060] As Figure 2 shown, an installation cavity 10 is formed inside the housing 1, and the installation cavity 10 is used to mount other components of the washing machine 100. Further, an opening is provided on the housing 1, and the shape of the opening may be circular, and the opening is communicated with the installation cavity 10.

[0061] Based on this, the washing machine 100 may further include a tub 11 disposed in the installation cavity 10 of the cabinet 1, and a washing cavity 110 is formed inside the tub 11, so that the clothes to be washed can be placed in the washing cavity 110 for washing. A sewage discharge hole ( Figure 2 not shown in the figure) is also provided on the tub 11, and the sewage discharge hole is communicated with the washing cavity 110, so that after the cleaning program of the washing machine 100 ends, the washing water in the washing cavity 110 can be discharged to the outside of the washing cavity 110 through the sewage discharge hole.

[0062] The above-mentioned tub 11 may include an inner tub 111 and an outer tub 112 (see Figure 2 ), the inner tub 111 and the outer tub 112 are nested, and both the inner tub 111 and the outer tub 112 have openings. The outer tub 112 is disposed in the installation cavity 10 of the cabinet 1, the axis of the outer tub 112 is parallel to the bottom surface of the cabinet 1, and the opening of the outer tub 112 is communicated with the opening of the cabinet 1.

[0063] The washing cavity 110 is formed inside the inner tub 111. The inner tub 111 is disposed inside the outer tub 112 and can rotate around the axis of the inner tub 111. It can be understood that three lifting ribs parallel to the axis of the inner tub 111 are provided inside the inner tub 111, and the three lifting ribs are evenly distributed along the circumferential direction of the inner tub 111. When the inner tub 111 rotates, the clothes in the inner tub 111 will rub against the inner wall of the inner tub 111 and the lifting ribs, and the lifting ribs will bring the clothes out of the liquid surface of the water, and then fall back into the water under the action of gravity after reaching a certain height, colliding with the water surface, so as to achieve the purpose of washing clothes. At the same time, a plurality of small holes are provided on the side wall of the inner tub 111. When the washing machine 100 spins the clothes dry, the water in the inner tub 111 can enter the outer tub 112 through the small holes under the action of the centrifugal force generated by the rotation of the inner tub 111, so as to spin the clothes in the inner tub 111 dry. In addition, the sewage discharge hole of the tub 11 is provided on the outer tub 112. In this way, when the drying or washing is over, the water that enters the outer tub 112 through the small holes can be discharged through the sewage discharge hole.

[0064] The washing machine 100 provided in this application may also be a pulsator washing machine. As Figure 3 shown, when the washing machine 100 is a pulsator washing machine, it may include a cabinet 1, and an installation cavity 10 is formed inside the cabinet 1. A tub 11 is provided in the installation cavity 10, and the tub 11 includes an inner tub 111 and an outer tub 112, and the inner tub 111 is nested inside the outer tub 112. A washing cavity 110 is formed inside the inner tub 111, so that clothes can be put into the washing cavity 110 for washing. It can be understood that a pulsator is provided inside the inner tub 111, and the pulsator rotates to stir the washing water in the washing cavity 110, and the clothes rotate with the washing water and collide and rub against the inner wall of the inner tub 111 to achieve the purpose of washing clothes.

[0065] Further, small holes are also formed in the inner tub 111 so that the water in the washing cavity can flow out into the outer tub 112 when the washing is finished or during spin-drying. As Figure 4 shown, a sewage drain hole 1100 is formed in the outer tub 112 so that the washing water can be discharged through the sewage drain hole 1100.

[0066] During the process of washing clothes with the above washing machine 100, a large amount of lint will be generated. Since synthetic clothes usually contain microplastics such as polyester fibers and acrylic fibers, most of which are non-biodegradable materials. Each time a piece of clothing is washed, thousands of lint can be generated. In this case, if the washing water is not treated, these microplastics will be discharged into the underground pipes along with the washing water, and finally flow into rivers and the ocean, where they will be swallowed by fish and other marine organisms, enter the food chain, and reach the human body.

[0067] Based on this, in order to reduce the amount of microplastics discharged into natural water bodies, the washing machine 100 provided in this application may further include a filtering device.

[0068] It should be noted that when the washing machine 100 is a drum washing machine, the drum washing machine further includes a drainage pump, which can pump the washing water in the washing cavity 110 and the outer tub 112 into the filtering device so that the filtering device filters the washing water. When the washing machine 100 is a pulsator washing machine, the pulsator washing machine is an up-drainage pulsator washing machine, and the up-drainage pulsator washing machine also pumps the washing water into the filtering device through a drainage pump.

[0069] Next, the filter plate device will be described. As Figure 5 shown, the filtering device 2 may include a housing 21. The housing 21 is used to protect and support the devices disposed inside it and to seal the devices disposed inside the housing 21.

[0070] Again, as Figure 6 shown, an accommodation cavity 20 is formed inside the housing 21, and other devices of the filtering device 2 can be arranged in the accommodation cavity 20. Further, a first water inlet 211 and a first water outlet 212 are formed in the housing 21, and both the first water inlet 211 and the first water outlet 212 are communicated with the accommodation cavity 20. In addition, the first water inlet 211 is also communicated with the sewage drain hole. For example, the first water inlet 211 is communicated with the sewage drain hole through a sewage drain pipe. Furthermore, the drainage pump of the washing machine 100 can pump the washing water into the sewage drain pipe through the sewage drain hole, and the washing water can flow into the first water inlet 211 along the sewage drain pipe.

[0071] Exemplarily, the washing machine 100 may further include a sewage pipe (not shown). One end of the sewage pipe is communicated with the sewage hole 1100 of the washing machine 100, and the other end is communicated with the first water inlet 211, so that the washing water in the washing cavity 110 can flow into the first water inlet 211 through the sewage pipe. Further, the washing machine 100 may further include a water outlet pipe (not shown). One end of the water outlet pipe is communicated with the first water outlet 212, and the other end is communicated with a floor drain, so that the filtered washing water can be discharged.

[0072] Continuing to refer to Figure 6 , in order to filter the washing water, the filtering device 2 may further include a filter net 22, and the filter net 22 is disposed in the accommodation cavity 20 of the outer housing 21. One end of the filter net 22 near the first water inlet 211 is provided with a filter net opening, and the filter net opening can be communicated with the first water inlet 211, so that the washing water can flow into the interior of the filter net 22 after flowing out of the first water inlet 211.

[0073] On this basis, as Figure 6 shown, the filtering device 2 may further include a driving assembly 23. The driving assembly 23 is connected to the outer housing 21, and the driving assembly 23 is also connected to the filter net 22. The driving assembly 23 is used to drive the filter net 22 to rotate around the axis of the filter net 22, so that the washing water entering the filter net 22 from the washing cavity 110 enters the accommodation cavity 20 of the outer housing 21 under the action of centrifugal force, and then is discharged through the first water outlet 212 opened on the outer housing 21.

[0074] As can be seen from the above, under the action of the driving assembly 23, the filter net 22 can rotate around the axis of the filter net 22, and then the washing water in the filter net 22 is discharged into the accommodation cavity through the peripheral wall of the filter net 22 under the action of centrifugal force.

[0075] It can be understood that the filter net 22 should be provided with filter holes 220, and the filter holes 220 can communicate the interior of the filter net 22 with the accommodation cavity 20 of the outer housing 21. In this way, the washing water in the filter net 22 can be discharged into the accommodation cavity 20 through the filter holes 220.

[0076] In addition, it should be noted that the number of the filter holes 220 is multiple, and the multiple filter holes 220 are uniformly distributed on the peripheral wall surface of the filter net 22. Further, the filter holes 220 can be selected between one micron and two millimeters. Exemplarily, the aperture of the filter hole 220 can be 1μm, or the aperture of the filter hole 220 can also be 2mm.

[0077] In summary, the filtering device 2 provided by the present application mainly includes a housing 21, a filter screen 22, and a driving assembly 23. The filter screen 22 located inside the housing 21 is connected to the driving assembly 23, and the driving assembly 23 is used to drive the filter screen 22 to rotate.

[0078] In this case, when the washing machine 100 finishes washing or during the spin-drying process, after the washing water enters the interior of the filter screen 22 through the first water inlet 211, the liquid part of the washing water can flow out from the interior of the filter screen 22 through the filter holes 220 into the accommodating cavity of the housing 21, and then be discharged through the first water outlet 212 opened on the housing 21. It can be understood that during the process of the liquid part of the washing water in the filter screen 22 flowing out through the filter holes 220, the lint (including microplastics) contained in the washing water will be intercepted by the filter holes 220 inside the filter screen 22, thereby realizing the filtration of the washing water.

[0079] It should be noted that during the continuous inflow of the washing water into the filter screen 22, a certain pressure difference will be generated between the inside and outside of the filter screen 22. The washing water in the filter screen 22 flows into the accommodating cavity 20 through the filter holes 220 under the action of the pressure difference and its own gravity. The driving assembly 23 is connected to the filter screen 22 and can drive the filter screen 22 to rotate around its own axis. In this way, when the filter screen 22 rotates, it can drive the washing water inside the filter screen 22 to rotate, and the efficiency of the washing water discharged from the filter screen 22 under the action of centrifugal force will be higher. Compared with ordinary filtering devices, driving the filter screen 22 to rotate through the driving assembly 23 can improve the filtering efficiency and can shorten the time for the washing machine 100 to discharge the washing water to a certain extent.

[0080] In addition, the washing water contains a large amount of lint (including microplastics), and these lint are likely to deposit at the bottom of the filter screen 22 under the action of their own gravity. There is also a part of the lint that may adhere to the inner wall of the filter screen 22 due to being intercepted by the filter holes 220. If a large amount of lint adheres to the inner wall of the filter screen 22, it may cause the filter screen 22 to be blocked, resulting in the washing water being unable to be discharged smoothly and affecting the filtering effect.

[0081] However, the filtering device 2 provided by the present application includes a driving assembly 23, and the driving assembly 23 can drive the filter screen 22 to rotate at a high speed. When the filter screen 22 rotates at a high speed, it can drive the washing water inside it to rotate. In this way, the washing water inside the filter screen 22 rotates and flows. On the one hand, the rotating water flow can stir the lint deposited at the bottom of the filter screen 22. On the other hand, the water flow can wash the lint adhering to the inner wall of the filter screen 22, so that the lint can fall off from the inner wall of the filter screen 22 and fall back into the water flow again, thereby reducing the occurrence of the filter screen 22 being blocked by lint, and can reduce the number of times the user replaces or cleans the filter screen 22.

[0082] As described above, the washing water can enter the interior of the filter net 22 through the first water inlet 211, so as to carry out filtration. In order to prevent the washing water in the filter net 22 from overflowing due to excessive amount, or splashing out when the driving component 23 drives the filter net 22 to rotate. As Figures 5 to 6 shown, the filtering device 2 may further include a sealing cover 3. An inlet cavity 30 is formed inside the sealing cover 3. Further, a second water inlet 31 and a second water outlet 32 are formed on the sealing cover 3, and both the second water inlet 31 and the second water outlet 32 communicate with the inlet cavity 30.

[0083] Also as Figure 7 shown, in order to enable the above-mentioned sealing cover 3 to be installed on the outer housing 21, an installation hole 210 is further formed on the outer housing 21. It should be noted that the first water inlet 211 ( Figure 7 not shown in the figure) is formed close to the installation hole 210. In this case, the sealing cover 3 ( Figure 7 not shown in the figure) is arranged at the installation hole 210, and a part of the sealing cover 3 is located in the accommodation cavity 20 of the outer housing 21. The part of the sealing cover 3 located in the accommodation cavity 20 is sealingly connected to the outer housing 21. The second water inlet 31 communicates with the first water inlet 211, and the second water inlet 31 also communicates with the interior of the filter net 22.

[0084] Exemplarily, a handle 300 (see Figure 5 ) is provided at one end of the sealing cover 3 away from the installation hole 210. The handle 300 can facilitate the user to hold, so as to facilitate the installation and disassembly of the sealing cover 3.

[0085] In this way, the washing water flows through the first water inlet 211 and then enters the inlet cavity 30 of the sealing cover 3 through the second water inlet 31 communicated therewith, and then flows out from the second water outlet 32 through the filter net opening and enters the interior of the filter net 22. Compared with the washing water directly flowing out from the first water inlet 211 and flowing into the interior of the filter net 22 through the filter net opening, the washing water first enters the inlet cavity 30 and then flows into the interior of the filter net 22 through the second water outlet 32, which can effectively prevent the washing water from directly flowing into the accommodation cavity 20 of the outer housing 21 through the gap between the filter net 22 and the outer housing 21, ensuring that the washing water is discharged after filtration is completed.

[0086] In order to improve the sealing effect between the sealing cover 3 and the outer housing 21, as Figure 8 shown, the filtering device 2 may further include a first sealing ring 41 and a second sealing ring 42. Among them, the first sealing ring 41 abuts between the sealing cover 3 and the outer housing 21, and the second sealing ring 42 abuts between the sealing cover 3 and the outer housing.

[0087] On this basis, in order to limit the first sealing ring 41 and the second sealing ring 42 to ensure that the first sealing ring 41 and the second sealing ring 42 can stably abut between the sealing cover 3 and the outer housing 21. As Figure 9 shown, a first clamping portion 410 and a second clamping portion 420 are formed on the sealing cover 3, and the first clamping portion 410 and the second clamping portion 420 are arranged at intervals. Based on this, the first water inlet 211 (see Figure 6 ) and the second water inlet 31 are located between the first clamping portion 410 and the second clamping portion 420.

[0088] Exemplarily, the first clamping portion 410 may be a groove, the first sealing ring 41 is arranged in the first clamping portion 410, the second clamping portion 420 may be a groove, and the second sealing ring 42 is arranged in the second clamping portion 420.

[0089] In this way, a first clamping portion 410 and a second clamping portion 420 are formed on the sealing cover 3, and the first sealing ring 41 and the second sealing ring 42 are respectively arranged in the grooves formed by the first clamping portion 410 and the second clamping portion 420. Both the first sealing ring 41 and the second sealing ring 42 abut between the sealing cover 3 and the outer housing 21, and the first sealing ring 41 and the second sealing ring 42 can further ensure that there is no gap between the sealing cover 3 and the outer housing 21. Furthermore, it is ensured that the washing water flowing out of the first water inlet 211 between the first clamping portion 410 and the second clamping portion 420 will not leak from the gap between the sealing cover 3 and the outer housing 21, and it is guaranteed that the washing water flowing out of the first water inlet 211 can completely flow into the water inlet cavity 30 through the second water inlet 31, and flow into the interior of the filter net 22 through the second water outlet 32 communicated with the water inlet cavity 30, so that the washing water is discharged after passing through the filtration of the filter net 22.

[0090] In some embodiments of the present application, as Figure 10 shown, the sealing cover 3 is connected to the hole wall of the mounting hole 210 (see Figure 7 ), and an annular channel 2100 is formed between the sealing cover 3 and the hole wall of the mounting hole 210. The annular channel 2100 is respectively communicated with the second water inlet 31 and the first water inlet 211.

[0091] In this way, the washing water flowing out of the first water inlet 211 will first fill the annular channel 2100. After the annular channel 2100 is filled with washing water, the washing water will then flow into the water inlet cavity 30 of the sealing cover 3 through the second water inlet 31 communicated with the annular channel 2100.

[0092] In some other embodiments of the present application, as Figure 11 shown, the number of the second water inlets 31 may be multiple, and the multiple second water inlets 31 are spaced apart from each other around the outer periphery of the sealing cover 3.

[0093] When an annular channel 2100 is formed between the sealing cover 3 and the hole wall of the mounting hole 210, a plurality of second water inlets 31 may be located in the annular channel 2100. In this way, when the washing water fills the annular channel 2100, the washing water in the annular channel 2100 can flow into the water inlet cavity 30 through the plurality of second water inlets 31 at the same time, improving the water inlet efficiency of the washing water entering the filter net 22, ensuring that the washing water discharged from the washing machine 100 can enter the inside of the filter net 22 in time, and thus ensuring a relatively fast drainage rate of the washing water of the washing machine 100.

[0094] In some other embodiments of the present application, referring to Figure 6 and Figure 12 , the filtering device 2 may further include a filter net cover plate 5, which is arranged at the filter net opening for covering the filter net opening. In addition, a through hole 50 is formed on the filter net cover plate 5, and the second water outlet 32 is communicated with the through hole 50. On this basis, a contact portion 33 (see Figure 9 ) is arranged on one side surface of the sealing cover 3 close to the filter net cover plate 5, and the contact portion 33 abuts against the filter net cover plate 5.

[0095] In this way, the above-mentioned filter net cover plate 5 can be covered on the filter net opening to prevent the washing water from splashing out during the rotation of the filter net 22. The through hole 50 formed on the filter net cover plate 5 enables the second water inlet 31 to communicate with the inside of the filter net 22, so that the washing water can flow into the inside of the filter net 22. In addition, a contact portion 33 (see Figure 9 ) arranged on one side surface of the sealing cover 3 close to the filter net cover plate 5 can abut against the filter net cover plate 5 to prevent the filter net cover plate 5 from being thrown out during the rotation of the filter net 22, thereby ensuring that the filter net cover plate 5 can effectively cover the filter net 22.

[0096] Next, the driving assembly 23 will be described with reference to the accompanying drawings. Referring to Figure 6 and Figure 13 , the driving assembly 23 may include a mounting frame 231 and a driving motor 232. Among them, the mounting frame 231 is located outside the accommodating cavity 20, and the mounting frame 231 is connected to the outer housing 21. Based on this, the driving motor 232 is connected to the mounting frame 231.

[0097] Exemplarily, in order to enable the mounting frame 231 to be connected to the driving motor 232, as Figure 13 shown, a first mounting hole 2301 is formed on the mounting frame 231, and a second mounting hole 2302 is formed on one side surface of the driving motor 232 close to the mounting frame 231. The first mounting hole 2301 and the second mounting hole 2302 correspond to each other. Then, a screw can be passed through the first mounting hole 2301 and the second mounting hole 2302 to connect the driving motor 232 to the mounting frame 231.

[0098] In this way, the drive motor 232 can be mounted on the outside of the outer housing 21 through the mounting bracket 231, so that the influence of washing water on the drive motor 232 does not need to be considered.

[0099] To enable the mounting bracket 231 to be connected to the outer housing 21, as Figure 14 shown, screw posts 2310 are provided on the outer housing 21, and the screw posts 2310 are provided on the side of the outer housing 21 where the first water outlet 212 is formed. Corresponding screw holes 2304 are formed in the mounting bracket 231 (see Figure 13 ), and then screws can be screwed into the screw posts 2310 and the screw holes 2304 on the mounting bracket 231 for connection, so that the mounting bracket 231 can be connected to the outer housing 21.

[0100] Continuing to refer to Figure 14 , a drive motor shaft hole 2320 is also formed in the outer housing 21, and the drive motor shaft hole 2320 communicates with the accommodation cavity 20, so that the motor shaft 2321 of the drive motor 232 (see Figure 13 ) can extend into the accommodation cavity 20 through the drive motor shaft hole 2320 and be connected to the filter net 22. Further, to enable the drive motor 232 to pass through the mounting bracket 231, an avoidance hole 2303 is formed in the mounting bracket 231 (see Figure 13 ), so that the motor shaft 2321 can extend into the accommodation cavity 20.

[0101] In addition, a spline 23210 is also provided at one end of the motor shaft 2321 close to the filter net 22 (see Figure 13 ), so that the motor shaft 2321 can drive the filter net 22 to rotate after being connected to the filter net 22. Based on this, a spline fixing hole 2200 is also formed in the filter net 22 (see Figure 6 ), the spline 23210 is located in the spline fixing hole 2200, and the spline 23210 and the spline fixing hole 2200 cannot rotate relative to each other, so as to ensure that the filter net 22 can be driven to rotate when the drive motor 232 works.

[0102] On this basis, to prevent the washing water in the accommodation cavity 20 from leaking from the drive motor shaft hole 2320, as Figure 15 and Figure 16 shown, the filtering device 2 can further include a shaft seal 2322. The shaft seal 2322 can be sleeved on the motor shaft 2321, and the shaft seal 2322 is located in the drive motor shaft hole 2320. The upper surface of the shaft seal 2322 abuts against the drive motor shaft hole 2320, and the lower surface abuts against the drive motor 232 to prevent the washing water from leaking. The shaft seal 2322 is formed with a through hole 23220, and the motor shaft 2321 passes through the through hole 23220.

[0103] Further, a buffer area 23221 is also formed in the shaft seal 2322. The buffer area bypass hole is arranged around the through hole 23220 and is not communicated with the through hole 23220. The buffer area 23221 can provide a buffer space for the motor shaft 2321, ensuring that there is a buffer space when the motor shaft 2321 shakes during rotation, avoiding excessive extrusion of the shaft seal 2322 by the motor shaft 2321, and improving the service life of the shaft seal 2322.

[0104] Exemplarily, the above shaft seal can be made of a soft material such as rubber.

[0105] As can be seen from the above, the filter net 22 can filter the washing water. Next, the filter net 22 will be further described. Refer to Figure 17 , the filter net 22 may include a peripheral wall 61 and a bottom wall 62. Filter holes 220 are formed in the peripheral wall 61, so that the washing water in the filter net 22 can enter the accommodation cavity 20 through the filter holes 220 under the action of centrifugal force, and then be discharged through the first water outlet 212 communicated with the accommodation cavity 20.

[0106] The bottom wall 62 is connected to one end of the peripheral wall 61 away from the filter net opening and seals one end of the peripheral wall 61 away from the filter net opening. The driving assembly 23 is connected to the bottom wall 62.

[0107] Exemplarily, refer to Figure 18 , the filter net 22 provided in the present application may also be a conical cylinder. Along the direction from the filter net opening to the bottom wall 62, the inner diameter of the filter net 22 gradually decreases.

[0108] In this way, the washing water entering the filter net 22 from the washing cavity enters the accommodation cavity 20 through the peripheral wall 61 of the filter net 22, completing the filtration of the washing water.

[0109] On this basis, the washing machine 100 provided in the present application may further include a water flow sensor 7 (see Figure 6 ) and a controller (not shown). The controller is electrically connected to the water flow sensor 7 and the driving assembly 23.

[0110] The water flow sensor 7 is used to detect whether there is water flow at the first water inlet 211. When there is water flow through the first water inlet 211, the water flow sensor 7 generates an electrical signal. The controller is used to obtain the electrical signal generated by the water flow sensor 7, and when the electrical signal is obtained, the controller controls the driving assembly 23 to work.

[0111] In this way, refer to Figure 19, when the washing water discharged from the washing machine 100 flows through the first water inlet 211, the water flow sensor 7 detects the flowing water and generates an electrical signal, which is received by the controller. After receiving the electrical signal, the controller controls the driving assembly 23 to work. The driving assembly 23 drives the filter net 22 to rotate, and the washing water in the filter net 22 will flow out from the filter holes 220 under the action of centrifugal force.

[0112] Further, the washing machine 100 provided in the present application may further include a pressure sensor 8 (see Figure 6 ), and an alarm 92. The controller is electrically connected to the pressure sensor 8 and the alarm respectively, and the pressure sensor 8 is used to detect the pressure value in the filter net 22.

[0113] Based on this, the controller is further configured to obtain the pressure value. When the pressure value is greater than or equal to the preset pressure value, the controller controls the alarm to work, and the controller also controls the driving assembly 23 to stop working. It should be noted that the preset pressure value is greater than 0.

[0114] In summary, referring to Figure 20 , when the controller obtains the electrical signal and the obtained pressure value is less than the preset pressure value, the controller controls the driving assembly 23 to work, so that the filter net 22 can rotate. When the pressure value is greater than or equal to the preset pressure value, the controller controls the driving assembly 23 to stop working and controls the alarm to work.

[0115] It can be understood that as the lint accumulated in the filter net 22 gradually increases, the degree of blockage of the filter holes 220 of the filter net 22 will also increase. Therefore, when the filter net 22 is filled with washing water, the pressure will also increase. And as the lint accumulates more, the pressure value in the filter net 22 will also increase.

[0116] In this case, if the pressure value obtained by the controller is less than the preset pressure value and the controller also receives the electrical signal sent by the water flow sensor, the controller controls the driving assembly 23 to work. That is, when the lint accumulation in the filter net 22 is less and there is washing water flowing through the first water inlet 211, the controller can control the driving assembly 23 to work, rotate the filter net 22, and then make the washing water in the filter net 22 flow out from the filter holes 220 under the action of centrifugal force.

[0117] If the pressure value obtained by the controller is greater than or equal to the preset pressure value, the controller controls the alarm to work, and the controller also controls the driving assembly 23 to stop working. That is, when the lint accumulation is too much and the filter net 22 needs to be replaced or cleaned, the controller can remind the user to clean or replace the filter net 22 through the alarm. And the controller also controls the driving assembly 23 to stop working, because the filter net 22 is already blocked, so controlling the driving assembly 23 to stop working can reduce unnecessary power consumption.

[0118] In addition, the washing machine 100 provided in this application may further include a communication component, which is electrically connected to the controller. When the pressure value obtained by the controller is greater than or equal to a preset pressure value, the controller will control the communication component to work. The communication component can send a reminder message to the user, and the user can receive the message through the mobile APP side, so that the user can clean the filtering device 2 in time to ensure the normal use of the filtering device 2.

[0119] In some embodiments of this application, as Figure 21 shown, a first clamping portion 201 and a second clamping portion 202 are provided on the outer casing 21. The first clamping portion 201 and the second clamping portion 202 are respectively formed with a first clamping groove 2010 and a second clamping groove 2020. Based on this, the outer casing 21 can be hung on the mounting rod or the support structure through the first clamping portion 201 and the second clamping portion 202. Exemplarily, a mounting rod can be provided on the wall near where the user places the washing machine 100, and the axis of the mounting rod is parallel to the ground, so that the first clamping portion 201 and the second clamping portion 202 can be hooked on the mounting rod, thereby realizing the installation of the outer casing 21.

[0120] In some other embodiments of this application, referring to Figure 7 and Figure 11 , a fixing groove 301 is provided on the sealing cover 3, and the fixing groove 301 has an opening. Further, a fixing post 2101 is provided on the inner peripheral wall of the mounting hole 210 of the outer casing 21. The fixing post 2101 can be screwed into the fixing groove 301 through the opening of the fixing groove 301 and is clamped with the fixing groove 301. In this way, the sealing cover 3 can be connected to the outer casing 21. And when disassembling, only need to rotate the sealing cover 3 so that the fixing groove 301 is separated from the fixing post 2101.

[0121] In the description of this specification, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0122] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A washing machine, characterized in that, the washing machine comprises: a casing, with an installation cavity formed inside; a barrel body, disposed in the installation cavity; a washing cavity is formed inside the barrel body; a sewage discharge hole is formed in the barrel body and communicates with the washing cavity; a filtering device, comprising: an outer casing, with a receiving cavity formed inside; a first water inlet and a first water outlet are formed in the outer casing, and both the first water inlet and the first water outlet communicate with the receiving cavity; a filter net, disposed in the receiving cavity; a filter net opening is formed at one end of the filter net close to the first water inlet, and the filter net opening communicates with the first water inlet, so that the washing water in the washing cavity can enter the filter net; a driving assembly, connected to the outer casing and connected to the filter net, for driving the filter net to rotate around its axis, so that the washing water entering the filter net from the washing cavity enters the receiving cavity through the peripheral wall of the filter net under the action of centrifugal force.

2. The washing machine according to claim 1, characterized in that, the filtering device further comprises: a sealing cover, with a water inlet cavity formed inside; a second water inlet and a second water outlet are formed in the sealing cover; an installation hole is formed in the outer casing, and the first water inlet is formed close to the installation hole; the sealing cover is disposed at the installation hole, a part of the sealing cover is located in the receiving cavity, and the part of the sealing cover located in the receiving cavity is hermetically connected to the outer casing; the second water inlet communicates with the first water inlet; the second water outlet communicates with the filter net opening.

3. The washing machine according to claim 2, characterized in that, the filtering device further comprises: a first sealing ring, abutted between the sealing cover and the outer casing; a second sealing ring, abutted between the sealing cover and the outer casing; a first clamping portion and a second clamping portion are formed on the sealing cover, the first clamping portion and the second clamping portion are arranged at intervals, and the first water inlet and the second water inlet are located between the first clamping portion and the second clamping portion; the first clamping portion is a groove, and the first sealing ring is disposed in the first clamping portion; the second clamping portion is a groove, and the second sealing ring is disposed in the second clamping portion.

4. The washing machine according to claim 3, characterized in that, the sealing cover is connected to the hole wall of the installation hole, and an annular channel is formed between the sealing cover and the hole wall of the installation hole, and the annular channel communicates with the second water inlet and the first water inlet respectively; and / or, the number of the second water inlets can be multiple, and the multiple second water inlets are arranged at intervals around the outer periphery of the sealing cover.

5. The washing machine according to claim 2, characterized in that, the filtering device further comprises: a filter net cover plate, disposed at the filter net opening for covering the filter net opening; a through hole is formed in the filter net cover plate, and the second water outlet communicates with the through hole; a butting portion is disposed on one side surface of the sealing cover close to the filter net cover plate, and the butting portion abuts against the filter net cover plate.

6. The washing machine according to any one of claims 1-5, characterized in that, The driving assembly includes: A mounting bracket located outside the accommodation cavity, and the mounting bracket is connected to the outer housing; A driving motor connected to the mounting bracket.

7. The washing machine according to any one of claims 1-5, wherein, The filter screen includes: A peripheral wall provided with filter holes, so that the washing water in the filter screen can enter the accommodation cavity through the filter holes under the action of centrifugal force; and A bottom wall connected to one end of the peripheral wall away from the opening of the filter screen and sealing one end of the peripheral wall away from the opening of the filter screen, and the driving assembly is connected to the bottom wall.

8. The washing machine according to any one of claims 1-5, wherein, The washing machine may further include: A water flow sensor for detecting whether there is water flow at the first water inlet; when there is water flow through the first water inlet, the water flow sensor generates an electrical signal; A controller electrically connected to the water flow sensor and the driving assembly respectively for acquiring the electrical signal; the controller is configured to: Control the driving assembly to operate in the case of acquiring the electrical signal.

9. The washing machine according to claim 8, wherein, The washing machine may further include: a pressure sensor and an alarm, and the pressure sensor is used for detecting the pressure value in the filter screen; The controller is electrically connected to the pressure sensor and the alarm respectively, and the controller is further configured to: If the pressure value is less than a preset pressure value and the controller receives the electrical signal, the controller controls the driving assembly to operate; If the pressure value is greater than or equal to the preset pressure value, control the alarm to operate, and the controller also controls the driving assembly to stop operating, and the preset pressure value is greater than 0.

10. A washing machine, wherein, The washing machine includes: A machine shell with an installation cavity formed inside; A barrel body disposed in the installation cavity; a washing cavity is formed inside the barrel body; a sewage discharge hole is opened on the barrel body and communicated with the washing cavity; A filtering device, including: An outer housing with an accommodation cavity formed inside; a first water inlet and a first water outlet are opened on the outer housing, and both the first water inlet and the first water outlet are communicated with the accommodation cavity; A filter screen disposed in the accommodation cavity; a filter screen opening is opened at one end of the filter screen close to the first water inlet, and the filter screen opening is communicated with the first water inlet, so that the washing water in the washing cavity can enter the filter screen; The washing water entering the filter screen from the washing cavity enters the accommodation cavity through the peripheral wall of the filter screen.

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