CN113638200A

CN113638200A - Washing machine drainage filter structure and washing machine

Info

Publication number: CN113638200A
Application number: CN202110772312.4A
Authority: CN
Inventors: 颜灵智; 谢红伟; 王翠莲
Original assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-11-12

Abstract

The invention discloses a washing machine and a drainage filter thereof, wherein the drainage filter comprises: the filter element is rotatably arranged in the shell; the first driving structure can drive the filter element to rotate; a key shaft that can transmit the driving force of the first driving structure to the filter element; the second driving structure is used for driving the key shaft to realize the connection or disconnection of the key shaft and the first driving structure; and a cutting piece for cutting off the thread scraps is arranged on the filter element. The cutting piece for cutting off the thread scraps is arranged on the filter element, and the filter element can rotate, so that the thread scraps adhered to the filter element or thread scraps suspended in water flow and flowing through the shell can be cut off, the length of the thread scraps is shortened, the thread scraps can flow out along with the water flow, and the thread scraps are prevented from being wound on the filter element; is favorable for smooth drainage and avoids the accumulation of impurities such as thread scraps and the like at the position of the filter element. The thread scraps in the shell can be automatically cleaned, and the manual operation is saved.

Description

Washing machine drainage filter structure and washing machine

Technical Field

The invention belongs to the technical field of washing machines, and particularly relates to a washing machine drainage filter and a washing machine with the same.

Background

The drainage filter of the drum washing machine is usually designed together with the drainage pump, and is usually shielded by the filter door and hidden. The drainage filter requires a user to clean regularly, but in the actual use process, the user can hardly clean regularly and spontaneously, so the problems that the drainage filter is blocked and drainage cannot be performed frequently occur in daily washing. Once the problem occurs, a user needs to manually take out the filter screen in the drainage filter for cleaning, but the washing water is discharged together in the taking-out process, so that a lot of water is left around the washing machine, and great inconvenience is brought to the user in the use process.

Even if the drainage fault does not occur, after the washing machine runs for dozens of washing cycles, a plurality of threads and scraps can be gathered in the filter, and particularly, the washing and drying integrated machine is serious; meanwhile, most of the drum washing machines adopt an upper drainage structural design, residual water cannot be thoroughly drained, threads and dust on a drainage filter are soaked in water for a long time, are easy to mildew, deteriorate and turn black, and can be mixed with washing water in next washing, so that the drum washing machines are insanitary and unhealthy.

The existing method for cleaning thread scraps on the drainage filter comprises the following steps: the number of the drainage motors is increased, and the flow cleaning pipes are added on the drainage filter to solve the problem, but the cost of the drainage motors is higher, and the difficulty or complexity of program control is increased along with the increase of the drainage motors, so that the complexity of the whole machine assembly is also improved. The additional flow cleaning pipe still needs the user to use the container to collect water and drain by oneself, which increases the labor capacity of the user, and the space from the flow cleaning pipe to the bottom surface is very small, which is inconvenient to operate.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a washing machine drainage filter which is used for automatically cleaning thread scraps on the drainage filter in a washing machine, is favorable for smooth drainage, avoids mildew and the like of the thread scraps, and is favorable for saving manual operation.

In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:

a washing machine drain filter comprising:

a housing;

the filter element is rotatably arranged in the shell;

the first driving structure can drive the filter element to rotate;

a key shaft that can transmit the driving force of the first driving structure to the filter element;

the second driving structure is used for driving the key shaft to realize the connection or disconnection of the key shaft and the first driving structure;

and a cutting piece for cutting off the thread scraps is arranged on the filter element.

Further, the cutting member is a blade.

Further, the first drive structure has an impeller located within the housing and a motor for driving the impeller to rotate.

Further, the impeller and the motor are used for realizing the drainage of the washing machine.

Furthermore, a mounting groove matched with the first end of the key shaft is formed in the first driving structure, and the second driving structure is used for driving the key shaft to move in the axial direction, so that the first end of the key shaft is connected and mounted in the mounting groove or separated from the mounting groove.

Further, the second driving structure has a first magnetic member and a second magnetic member, at least one of the first magnetic member and the second magnetic member is an electromagnetic member, and the first magnetic member is fixedly disposed on the key shaft.

Furthermore, the magnetic switch further comprises a detachable plug used for closing the shell, and the second magnetic part is arranged on the plug.

Furthermore, the second magnetic part is an electromagnetic part, and a through hole for passing an electric wire is formed in the sealing plug.

Furthermore, be equipped with on the shutoff with casing internal seal's second holding tank, second magnetism spare is the electromagnetism spare, second magnetism spare is located in the second holding tank.

Further, the sealing plug is provided with a plug body and a plug cover capable of opening and closing the second accommodating groove, and the second magnetic piece is fixedly arranged on the plug cover.

Further, the filter element is provided with a first accommodationTroughThe second end of the key shaft is located in the first accommodationTroughAnd (4) the following steps.

Further, the filter element is provided with a first end frame, a second end frame and a core part connected between the first end frame and the second end frame, and the key shaft is arranged coaxially with the filter element.

Further, the cutting piece is arranged on the core part along the axial direction of the filter element.

Further, the cutting piece is obliquely arranged along the axial direction of the filter element.

Furthermore, the first end frame and the second end frame are provided with through holes which are used for the key shaft to pass through and can transmit the driving force of the first driving structure to the filter element.

Furthermore, the filter element also comprises a limiting sleeve which is arranged in the shell and used for limiting the filter element to rotate stably.

Further, the second end frame is matched with the limiting sleeve, and the second end frame is located in the limiting sleeve.

Based on the drainage filter of the washing machine, the invention also provides the washing machine with the drainage filter, which is used for automatically cleaning thread scraps on the drainage filter in the washing machine, is favorable for smooth drainage, avoids mildew and the like of the thread scraps, and reduces manual operation.

A washing machine is provided with the drainage filter.

Based on the washing machine drainage filter, the invention also provides a control method of the washing machine with the drainage filter, which is used for automatically cleaning thread scraps on the drainage filter in the washing machine, is favorable for smooth drainage, avoids mildew and the like of the thread scraps, and reduces manual operation.

A control method of the washing machine with the drainage filter comprises the following steps:

s10, in the drainage process of the washing machine, starting a thread scrap cutting program;

s20, starting the first driving structure to drain water;

s30, the second driving structure pushes the key shaft to move, so that the key shaft is connected with the first driving structure; the first driving structure drives the filter element to rotate and is used for cutting off thread scraps.

s10, after the washing of the washing machine is finished, entering a thread scrap cutting program;

s20, starting the first driving structure, and enabling the second driving structure to push the key shaft to move so that the key shaft is connected with the first driving structure;

and S30, driving the filter to rotate for cutting off the thread scraps.

And further, the step S40 of feeding water into the washing machine and then starting drainage to take the thread scraps away.

Compared with the prior art, the invention has the advantages and positive effects that: the cutting piece for cutting off the thread scraps is arranged on the filter element, and the filter element can rotate, so that the thread scraps adhered to the filter element or thread scraps suspended in water flow and flowing through the shell can be cut off, the length of the thread scraps is shortened, the thread scraps can flow out along with the water flow, and the thread scraps are prevented from being wound on the filter element or being accumulated in the shell; is favorable for smooth drainage and avoids the accumulation of impurities such as thread scraps and the like at the position of the filter element. To the drive of crossing the filter core, realize through the second drive structure the strong axle is connected or breaks away from with first drive structure, and first drive structure can drive it is rotatory to cross the filter core, can realize crossing the rotation of filter core through controlling first drive structure and second drive structure, realizes the line bits in the automatic clearance casing, has saved manual operation.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a drain filter of a washing machine according to the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of a portion of the structure of FIG. 2;

fig. 4 is a schematic structural view of the filter element in fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the positional relationships shown in the drawings, with the direction near the axis of the drain strainer being "inner" and vice versa. The terminology is for the purpose of describing the invention only and is for the purpose of simplifying the description, and is not intended to indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operated, and is not to be considered limiting of the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example one

Referring to fig. 1 to 4, an embodiment of a drain filter of a washing machine according to the present invention, a drain filter 100 of a washing machine includes: the filter element 20 is rotatably arranged in the shell 10, and the filter element 20 is provided with a cutting piece 21 for cutting off thread scraps; the first driving structure 40 can drive the filter element 20 to rotate, and the key shaft 30 can transmit the driving force of the first driving structure 40 to the filter element 20 to realize the rotation of the filter element 20; the second driving structure 50 is used for driving the key shaft 30 to realize the connection or disconnection between the key shaft 30 and the first driving structure 40, that is, when the key shaft 30 is connected with the first driving structure 40, the first driving structure 40 is started, and the torque of the first driving structure 40 is transmitted to the filter element 20 through the key shaft 30, so as to drive the filter element 20 to rotate; when the rocker shaft 30 is disengaged from the first drive structure 40, the torque output by the first drive structure 40 is not transmitted to the filter element 20, and the filter element 20 does not rotate.

The cutting piece 21 for cutting off the thread scraps is arranged on the filter element 20, and the filter element 20 can rotate, so that the thread scraps adhered to the filter element 20 or suspended in water flow and flowing through the shell 10 can be cut off, the length of the thread scraps is shortened, the thread scraps can flow out along with the water flow, and the thread scraps are prevented from being wound on the filter element 20; is favorable for smooth drainage and avoids the accumulation of impurities such as thread scraps and the like at the position of the filter element 20. For the drive of the filter element 20, the connection or the disconnection of the key shaft 30 and the first drive structure 40 is realized through the second drive structure 50, the first drive structure 40 can drive the filter element 20 to rotate, the rotation of the filter element 20 can be realized by controlling the first drive structure 40 and the second drive structure 50, the thread scraps in the shell can be automatically cleaned, and the manual operation can be reduced or avoided.

Referring to fig. 2, a drain filter 100 is connected to a drain system of a washing machine to perform drainage and filtration; the first driving structure 40 has an impeller 41 located inside the casing 10 and a motor 42 for driving the impeller 41 to rotate, and the motor 42 is fixedly installed outside the casing 10. The impeller 41 and the motor 42 are used for realizing the drainage of the washing machine, that is, the first driving structure 40 has the functions of realizing the drainage and automatically cleaning thread scraps; the impeller 41 and the motor 42 on the drainage filter 100 are used to drive the filter element 30 without adding a special motor, which is beneficial to the simplification of the structure and the reduction of the cost. The first driving structure 40 is started to play a role in draining water; when cutting wire scraps are required, the key shaft 30 is connected with the first driving structure 40 so that the cutting wire scraps can be realized while draining water. Of course, after the drainage is completed, the key shaft 30 may be connected to the first driving structure 40 to cut only the lint. In this case, after the first driving mechanism 40 is operated, there is no residual water in the drain filter 100, and the first driving mechanism 40 rotates faster due to the reduction of the resistance, so that the thread scrap cutting effect is more excellent.

The first driving structure 40 is provided with an installation groove 43 matched with the first end of the key shaft 30, and the second driving structure 50 is used for driving the key shaft 30 to extend and retract in the axial direction, so that the first end of the key shaft 30 is installed in the installation groove 43 in a connected manner or separated from the installation groove 43. The first driving structure 40 drives the filter element 20 to rotate, the key shaft 30 is coaxially arranged with the impeller 41, the filter element 20 can rotate, the filter element 20 does not move in the axial direction, and the key shaft 30 penetrates through the filter element 20. The key shaft 30 is axially movable left and right and rotatable.

In order to realize the driving of the key shaft 30 by the second driving structure 50, the second driving structure 50 is a first magnetic member 51 and a second magnetic member 52, at least one of the first magnetic member 51 and the second magnetic member 52 is an electromagnetic member, and the first magnetic member 51 is fixed on the key shaft. The electromagnetic member can change the magnetic poles by changing the current flow direction, so that the first magnetic member 51 and the second magnetic member 52 can attract or repel each other, and give a mutual attraction or repulsion, thereby realizing the left-right movement of the key shaft 30 along the axis.

Referring to fig. 3, the drain filter 100 further includes a removable closure 60, the closure 60 being used to close the housing 10, and the second magnetic member 52 being fixed to the closure 60. When the first magnetic member 51 and the second magnetic member 52 repel each other, the first magnetic member 51 moves in a direction away from the second magnetic member 52, so that the first magnetic member 51 drives the key shaft 30 to move in a direction close to the impeller 41, and the first end of the key shaft 30 extends into the mounting groove 43; when the impeller 41 rotates, the key shaft 30 is driven to rotate together, and the key shaft 30 drives the filter element 20 to rotate. When the first magnetic member 51 and the second magnetic member 52 attract each other, the first magnetic member 51 drives the key shaft 30 to move toward the second magnetic member 52, so that the first end of the key shaft 30 is separated from the mounting groove 43.

The filter element 20 is provided with a first accommodating groove 22, and the first magnetic element 51 is movably positioned in the first accommodating groove 22; the second end of the key shaft 30 is located in the first receiving groove 22, and the second end of the key shaft 30 is fixedly disposed with the first magnetic member 51.

The second accommodating groove 61 sealed with the inside of the housing 10 is formed in the sealing plug 60, so that water flowing through the housing 10 is prevented from entering the second accommodating groove 61, and the second magnetic member 52 is located in the second accommodating groove 61, thereby facilitating protection of an electrified circuit of the second magnetic member 52.

The sealing plug 60 has a plug body 65 and a plug cover 66 capable of opening and closing the second accommodating groove 61, the second magnetic member 52 is fixedly arranged on the plug cover 66, the plug cover 66 is detachably arranged, when the second driving structure 50 breaks down, the second magnetic member 52 can be maintained by detaching the plug cover 66, the fixing operation of the second magnetic member 52 is facilitated, and the improvement of the operation efficiency is facilitated. In order to supply power to the second magnetic member 52, a through hole for passing an electric wire is opened in the plug 60, and the through hole may be opened in the plug body 65 or the plug cover 66.

Referring to fig. 4, the candle 20 has a first end frame 25, a second end frame 26, a core 27 connected between the first end frame 25 and the second end frame 26, and a key shaft 30 coaxially disposed with the candle 20. The cutting member 21 is fixedly disposed on the core 27, and both the first end frame 25 and the second end frame 26 are provided with through holes for the key shaft to pass through, through which the driving force of the first driving structure 40 can be transmitted to the filter element 20. The cutting members 21 are preferably blades, the cutting members 21 being arranged in the axial extension direction, a plurality of cutting members 21 being provided on the core 27.

In other embodiments, the cutting member 21 may be fixed to the first end frame 25 and/or the second end frame 26, or the cutting member 21 may be disposed obliquely, etc.

The drain strainer 100 further includes a restricting sleeve 70 fixedly installed in the housing 10, and the restricting sleeve 70 serves to restrict the filter element 20 from smoothly rotating. The second end bracket 26 mates with a restraining sleeve 70, the second end bracket being rotatably positioned within the restraining sleeve 70.

Example two

This embodiment is a first control method using the drain strainer of the washing machine of the first embodiment, and the structure of the drain strainer of the washing machine is the same as that of the first embodiment.

A control method of a washing machine having a drain filter, having the steps of:

s20, starting the first driving structure 40 to drain water;

specifically, when the motor 42 is turned on, the impeller 41 rotates to discharge the washing water flowing into the housing 10.

S30, the second driving structure 50 pushes the key shaft 30 to move, so that the key shaft 30 is connected with the first driving structure 40; the filter element 20 is driven to rotate for cutting thread scraps;

specifically, the second magnetic member 52 is energized to realize mutual repulsion between the first magnetic member 51 and the second magnetic member 52, and the first magnetic member 51 moves in a direction away from the second magnetic member 52, so that the first magnetic member 51 drives the key shaft 30 to move in a direction close to the impeller 41, and the first end of the key shaft 30 extends into the mounting groove 43. The rotation of the impeller 41 can drive the key shaft 30 to rotate together, and the key shaft 30 drives the filter element 20 to rotate. The cut thread scraps are discharged together with the water flow.

The second magnetic member 52 is provided with an iron core, and the iron cores of the first magnetic member 51 and the second magnetic member 52 are attracted under the condition that the second magnetic member 52 is not electrified; when energized, the first magnetic member 51 and the second magnetic member 52 repel each other. The second magnetic member 52 is energized only when rotation of the filter element 20 is desired. When the key shaft 30 is separated from the first driving structure 40, it is necessary to turn off the motor 42 and then separate the key shaft 30.

The mounting groove 43 is preferably provided as a splined blind hole, and when the key shaft 30 is inserted in its rest state, one insertion is not guaranteed, and for this purpose the second magnetic member 52 must be energized for a long period of time. After the motor 42 is started, the motor rotates at a high speed, even if the instant when the key shaft 30 is inserted cannot be over against the key groove of the mounting groove 43, the key shaft can be immediately aligned to realize insertion in the rotating process of the motor 42, once the mounting groove 43 is combined with the first end of the key shaft 30, the mounting groove 43 and the key shaft 30 have interaction force in the rotating motion, the mounting groove and the key shaft can be ensured not to be easily separated, and therefore the second magnetic piece 52 can be powered off at the moment. When the key shaft is required to be separated, after the motor 42 stops rotating, the second magnetic member 52 is supplied with current in the opposite direction, and because the mounting groove 43 and the first end of the key shaft 30 are relatively static and have no binding force, the key shaft 30 can be immediately attracted to the right side through the first magnetic member 51, so that the reset is realized. At this time, the power of the second magnetic member 52 is cut off, and the first magnetic member 51 is attracted to the core of the second magnetic member, thereby preventing the key shaft 30 from moving leftward when not in use.

EXAMPLE III

This embodiment is a second control method using the drain strainer of the washing machine of the first embodiment, which has the same structure as that of the first embodiment.

Because the rotating speed of the first driving structure 40 is not high, the rotating speed of the first driving structure 40 in normal operation cannot effectively cut up the thread scraps wound on the filter element 20; it is preferred to provide that each motor start is intermittent, and that upon starting acceleration, a large force is generated between the thread-cutting element 21 and the thread-cutting element due to the acceleration.

Under the condition that the filter element 20 is full of water, the resistance of the filter element 20 and the cutting piece 21 is increased, and the resistance of the impeller 41 for discharging water is increased, so that the rotating speed of the first driving structure 40 cannot be increased, and the chopping effect is limited. It is preferable to arrange to perform the lint removal process during a non-draining stage of the washing machine.

s10, after washing of the washing machine is finished, starting a thread scrap cutting program;

specifically, the washing end is that the laundry can be taken out of the washing machine.

S20, activating the first driving structure 40, and then the second driving structure 50 pushing the key shaft 30 to move, so that the key shaft 30 is connected with the first driving structure 40;

specifically, after the motor 42 is started, the impeller 41 rotates to energize the second magnetic member 52, so that the first magnetic member 51 and the second magnetic member 52 repel each other, and the first magnetic member 51 moves in a direction away from the second magnetic member 52, so that the first magnetic member 51 drives the key shaft 30 to move in a direction close to the impeller 41, and the first end of the key shaft 30 extends into the mounting groove 43.

S30, driving the filter element 20 to rotate for cutting off the thread scraps;

specifically, the key shaft 30 can be driven to rotate together, and the key shaft 30 drives the filter element 20 to rotate.

The first driving structure 40 adopts interval starting, and when the first driving structure starts acceleration, a large force is generated between the thread scraps and the cutting piece 21 due to the existence of the acceleration; the thread scraps are cut off. The motor 42 is preferably set to start for 15 seconds and then stop for 15 seconds.

And draining the shredded thread scraps along with water flow when the next washing is drained.

Example four

This embodiment is a third control method using the drain strainer of the washing machine of the first embodiment, and the structure of the drain strainer of the washing machine is the same as that of the first embodiment.

s10, after the washing of the washing machine is finished, starting a thread scrap cutting program;

S30, driving the filter element 20 to rotate for cutting off the thread scraps;

S40, water is fed into the washing machine, and drainage is started to take away thread scraps;

specifically, a small amount of water is injected into the washing machine, and then the first driving structure 40 is actuated to discharge the water, and the cut thread scraps are discharged along with the water flow.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A drain filter for a washing machine, comprising:

a housing;

the filter element is rotatably arranged in the shell;

the first driving structure can drive the filter element to rotate;

2. The drain filter of claim 1, wherein the first drive structure has an impeller located within the housing and a motor for driving the impeller to rotate, the first drive structure for effecting draining of the washing machine.

3. The drain filter of claim 1, wherein the first driving structure is provided with a mounting groove matched with the first end of the key shaft, and the second driving structure is used for driving the key shaft to move in the axial direction, so that the first end of the key shaft is connected and mounted in the mounting groove or separated from the mounting groove.

4. A drain filter according to any of claims 1 to 3, wherein the second driving structure has a first magnetic member and a second magnetic member, at least one of the first magnetic member and the second magnetic member being an electromagnetic member, the first magnetic member being fixed to the key shaft.

5. The drain filter according to claim 4, further comprising a removable plug for closing the housing, wherein the second magnetic member is disposed on the plug, the second magnetic member is an electromagnetic member, and a through hole for passing an electric wire is disposed on the plug.

6. The drain filter according to claim 5, wherein a second receiving groove sealed with the inside of the housing is provided in the plug, and the second magnetic member is located in the second receiving groove.

7. The drain strainer of claim 6 wherein the stopper has a stopper body and a stopper cover which opens and closes the second receiving groove, and the second magnetic member is fixed to the stopper cover.

8. A drain filter according to any of claims 1 to 3, wherein the filter element has a first end frame, a second end frame, a core connected between the first and second end frames, and the key shaft is arranged coaxially with the filter element.

9. The drain filter of claim 8, further comprising a restraining sleeve disposed within the housing for restraining the filter element from rotating smoothly, the second end bracket mating with the restraining sleeve, the second end bracket being positioned within the restraining sleeve.

10. A washing machine characterized by having the drain filter of any one of claims 1 to 9.