CN220057377U - Drainage assembly and washing machine - Google Patents

Abstract

The present disclosure provides a drain assembly and a washing machine. The filter of drainage subassembly sets up in the drainage chamber, and is located the bottom of drainage chamber, and big debris etc. can deposit at the filter in the drainage chamber, and little debris can be directly follow the discharge at the delivery port, has both avoided big debris to the influence of impeller operation, has still avoided little debris to pile up at the filter and need frequent washing. Therefore, the structure reduces the blocking probability of the drainage assembly and improves the user experience of the washing machine.

Description

Drainage assembly and washing machine

Technical Field

The disclosure relates to the technical field of intelligent home, in particular to a drainage assembly and a washing machine.

Background

The draining pump in the washing machine can realize the draining function or the circulating spraying function, and a filter is required to be arranged in the using process of the draining pump so as to filter impurities entering the draining pump, so that the blocking problem of the draining pump is avoided.

The filter of the drainage pump in the related art generally adopts a mode of encrypting a filtering structure grid so as to prevent foreign matters from flowing into the drainage cavity where the impeller is positioned through the filter, thereby reducing the probability of blockage of the drainage pump due to the foreign matters. However, because the filtering structure is relatively fine, most cotton scraps, cloth strips, foreign matters and the like are left at the bottom of the filter, the filter is easy to be blocked, and therefore, the water flow is unsmooth, and the drainage function and the circulating spraying function are affected.

Disclosure of Invention

The present disclosure provides a drain assembly and a washing machine to solve related technical problems.

According to a first aspect of embodiments of the present disclosure there is provided a drain assembly comprising:

a motor;

the pump body comprises a shell and an impeller; the shell encloses a drainage cavity; the impeller is assembled in the drainage cavity and is connected with the output end of the motor; the shell is provided with a water inlet and at least one water outlet which are respectively communicated with the drainage cavity;

the filter is detachably assembled in the drainage cavity, and the filter is positioned at the bottom of the drainage cavity in the gravity direction.

Optionally, the housing is provided with an assembly opening in communication with the drainage cavity, and the filter is plugged into the drainage cavity through the assembly opening.

Optionally, the filter comprises a support structure and a gripping structure connected to the support structure; the bearing structure is accommodated at the bottom of the drainage cavity, and the holding structure is exposed out of the pump body.

Optionally, the water outlet comprises a water outlet and a circulating port; the water outlet is communicated with the water draining structure, and the circulating port is communicated with the circulating spraying structure.

Optionally, the water outlet and the circulation port are disposed on opposite sides of the housing.

Optionally, the housing includes a main body portion, and a first pipe portion and a second pipe portion disposed outside the main body portion; the main body part encloses the drainage cavity;

the first pipeline part is communicated with the drainage cavity through the drainage outlet; the second pipeline part is communicated with the drainage cavity through the circulating port;

the straight line of the extending direction of the first pipeline part is not intersected with the rotating shaft of the impeller, and/or the straight line of the extending direction of the second pipeline part is not intersected with the rotating shaft of the impeller.

Optionally, the water discharge port comprises a first end and a second end which are opposite to each other in the circumferential direction of the water discharge cavity, and the first end is provided with a diversion structure protruding out of the edge of the water discharge port; when the impeller rotates clockwise, water flows to the second end along the flow guiding structure; when the impeller rotates counterclockwise, water flows along the second end into the drain opening.

Optionally, the motor comprises a brushless dc motor.

Optionally, a preset interval is arranged between the impeller and the filter.

According to a second aspect of the present disclosure there is provided a washing machine comprising any one of the drain assemblies as described in the first aspect.

The technical scheme provided by the disclosure at least can achieve the following beneficial effects:

the filter of this disclosure drainage subassembly sets up in the drainage chamber, and is located the bottom of drainage chamber, and big debris etc. can deposit at the filter in the drainage chamber, and little debris can be directly follow at delivery port discharge, has both avoided big debris to impeller moving's influence, has still avoided little debris to pile up at the filter and need frequent washing. Therefore, the structure reduces the blocking probability of the drainage assembly and improves the user experience of the washing machine.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is a schematic cross-sectional view of a drain assembly according to an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic exploded perspective view of a drain assembly according to an exemplary embodiment of the present disclosure;

FIG. 3 is a schematic diagram of an assembled structure of a drain assembly in an exemplary embodiment of the present disclosure;

fig. 4 is a schematic diagram of an assembled structure of a housing and a filter of a pump body according to an exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of the present disclosure.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one, and the terms "a" and "an" are used individually. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper," "top," "bottom," and the like are merely for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The draining pump in the washing machine can realize the draining function or the circulating spraying function, and a filter is required to be arranged in the using process of the draining pump so as to filter impurities entering the draining pump, so that the blocking problem of the draining pump is avoided. The filter of the drainage pump in the related art generally adopts a mode of encrypting a filtering structure grid so as to prevent foreign matters from flowing into the drainage cavity where the impeller is positioned through the filter, thereby reducing the probability of blockage of the drainage pump due to the foreign matters. However, because the filtering structure is relatively fine, most cotton scraps, cloth strips, foreign matters and the like are left at the bottom of the filter, the filter is easy to be blocked, and therefore, the water flow is unsmooth, and the drainage function and the circulating spraying function are affected.

The present disclosure provides a drain assembly, fig. 1 is a schematic cross-sectional structure of a drain assembly according to an exemplary embodiment of the present disclosure, fig. 2 is a schematic exploded perspective view of a drain assembly according to an exemplary embodiment of the present disclosure, and fig. 3 is a schematic assembled perspective view of a drain assembly according to an exemplary embodiment of the present disclosure. As shown in fig. 1 to 3, the drain assembly 1 includes a motor 11, a pump body 12, and a filter 13. The pump body 12 includes a housing 122 and an impeller 121, the housing 122 encloses a drain chamber 1221, and the impeller 121 is assembled in the drain chamber 1221 and connected to an output end of the motor 11. The housing 122 is provided with a water inlet 1222 and at least one water outlet 1223 communicating with the drainage cavity 1221, respectively. The filter 13 is detachably assembled to the drain chamber 1221, and the filter 13 is located at the bottom of the drain chamber 1221 in the gravitational direction.

The filter 13 of the drainage assembly 1 is arranged in the drainage cavity 1221 and is positioned at the bottom of the drainage cavity 1221, large sundries and the like in the drainage cavity 1221 can be deposited on the filter 13, and small sundries can be directly discharged from the water outlet 1223, so that the influence of the large sundries on the operation of the impeller 121 is avoided, and the phenomenon that the small sundries are accumulated on the filter 13 and need to be frequently cleaned is avoided. Therefore, the structure reduces the blocking probability of the drainage assembly 1 and improves the user experience of the washing machine. For example, because the amount of small debris such as fabric, lint, etc. within the filter 13 is reduced, frequent cleaning is not required, and bacterial growth problems within the filter 13 are avoided.

In some embodiments, the housing 122 is provided with an assembly opening 1227 in communication with the drainage cavity 1221, and the filter 13 is plugged to the drainage cavity 1221 through the assembly opening 1227. The filter 13 is assembled in an inserting mode, so that the filter 13 can be directly installed outside the drainage assembly 1, the problem that the shell 122 needs to be disassembled in the process of disassembling and assembling the filter 13 is avoided, and the convenience in disassembling the filter 13 is improved.

The filter 13 may include a supporting structure 131 and a holding structure 132 connected to the supporting structure 131, where the supporting structure 131 is accommodated at the bottom of the drainage cavity 1221, and the holding structure 132 is exposed to the pump body 12. The gripping structure 132 may be used to grip the filter 13, thereby facilitating the removal and installation of the filter 13. The support structure 131 may be a tray-like structure that is sized to match the bottom space of the drainage chamber 1221 to prevent debris from falling outside the support structure 131. During assembly of the filter 13, the gripping structure 132 is pushed into the filter 13 towards the drainage chamber 1221 to load the support structure 131 into the bottom of the drainage chamber 1221. During replacement of the filter 13, the gripping structure 132 pulls the filter 13 out of the housing 122 toward the drain chamber 1221.

In some embodiments, the supporting structure 131 may be provided with a plurality of through holes 1311 to drain the accumulated water when taking out, so as to avoid bringing out the water to the outside of the drainage assembly 1, thereby improving the cleanliness of use and user experience of the filter 13.

In some embodiments, the filter 13 may be assembled with a sealing ring in a circumferential direction that mates with the assembly opening 1227 to achieve a seal between the filter 13 and the assembly opening 1227 by the sealing ring, avoiding water leakage problems at the assembly opening 1227.

In the above embodiment, as shown in fig. 2 and 4, the water outlet 1223 may include a water outlet 1223a and a circulation outlet 1223b, the water outlet 1223a communicating with the water discharge structure, and the circulation outlet 1223b communicating with the circulation shower structure. That is, the drainage and circulation shower functions can be realized by the above-described drainage assembly 1. There are various ways to control the water flow from the water outlet 1223a or the circulation port 1223b, for example, by controlling the opening and closing of the water outlet 1223a and the circulation port 1223b through a valve, or by controlling the flow direction of the water flow and the water blocking structure to make the water flow from the outlet at different positions.

In some embodiments, the drain port 1223a and the circulation port 1223b are disposed on opposite sides of the housing 122, so that structural interference between the drain port 1223a and the circulation port 1223b and external pipes during installation and use can be avoided, and the effect on one of the drain port 1223a and the circulation port 1223b can be reduced when the water flow direction in the drain chamber 1221 is different due to the relative positional relationship between the drain port 1223a and the circulation port 1223b.

In some embodiments, the housing 122 includes a main body portion 1224 and first and second conduit portions 1225, 1226 disposed outside the main body portion 1224, the main body portion 1224 enclosing a drainage cavity 1221. The first conduit portion 1225 communicates with the drain chamber 1221 through a drain port 1223a, and the second conduit portion 1226 communicates with the drain chamber 1221 through a circulation port 1223b. The straight line in which the extending direction of the first pipe portion 1225 is located does not intersect the rotation axis of the impeller 121, so that the extending direction of the first pipe portion 1225 is inclined from the tangent line at the centroid of the drain port 1223a. And/or, the line in which the second pipe portion 1226 extends does not intersect the rotation axis of the impeller 121, such that the direction of extension of the second pipe portion 1226 is inclined to the tangent at the centroid of the circulation port 1223b, facilitating the flow of water out along either the first pipe portion 1225 or the second pipe portion 1226 upon clockwise or counterclockwise rotation. The rotation axis of the impeller 121 may be a central axis around which the impeller 121 rotates.

For example, the force of the water flow at the water discharge port 1223a includes a component along the extending direction of the first pipe portion 1225 when the impeller 121 rotates counterclockwise, and the force of the water flow at the circulation port 1223b includes a component along the extending direction of the second pipe portion 1226 when the impeller 121 rotates clockwise. The centroid of the drain port 1223a may refer to the intersection of the central axis of the first pipe portion 1225 and the drain port 1223a, and the centroid of the circulation port 1223b may refer to the intersection of the central axis of the second pipe portion 1226 and the circulation port 1223b. The extending direction of the first pipe portion 1225 may be a direction along the central axis from one end to the other end of the drain port 1223a, and the extending direction of the second pipe portion 1226 may be a direction along the central axis from one end to the other end of the circulation port 1223b. For example, when the first pipe portion 1225 and the second pipe portion 1226 are circular pipes, the extending direction of the first pipe portion 1225 and the second pipe portion 1226 is parallel to the direction in which the circle centers of the circular pipe sections are connected.

Because the force acting on the inner wall forms an included angle with the tangential line at the corresponding action point when the water flow flows clockwise or counterclockwise along the inner wall of the drainage cavity 1221, the water flow can easily form a larger component force along the extending direction of the first pipe section 1225 and the second pipe section 1226 when the water flow rotates clockwise or counterclockwise by utilizing the extending direction of the first pipe section 1225 and the second pipe section 1226 which are obliquely arranged relative to the tangential line at the centroids of the drainage port 1223a and the circulation port 1223b, thereby improving the smoothness of the water flow.

The water flow in the drainage chamber 1221 generates a clockwise flow along with the clockwise rotation of the impeller 121 and a counterclockwise flow along with the counterclockwise rotation of the impeller 121. For example, the water flow in the drainage chamber 1221 may be discharged through the drain port 1223a by a component force of the water flow in the extending direction of the first pipe portion 1225 while flowing counterclockwise through the first pipe portion 1225. When the water flows clockwise, the water flows along the inner wall of the drainage chamber 1221 substantially due to the restriction of the extending direction of the first pipe portion 1225, and does not flow out of the drainage port 1223a.

Also, the water flow of the drainage chamber 1221 can be discharged through the circulation port 1223b by using a component force of the water flow in the extending direction of the second pipe portion 1226 while the water flow flows clockwise through the second pipe portion 1226. When the water flows counterclockwise, the water flows substantially along the inner wall of the drainage chamber 1221 due to the restriction of the extending direction of the second pipe portion 1226, and does not flow out of the circulation port 1223b.

Wherein, for example, the dashed arrows in fig. 2 may represent clockwise direction and the solid arrows may represent counterclockwise direction. The above-described clockwise direction may refer to a clockwise direction when looking down from the top of the motor 11, and the counterclockwise direction may refer to a counterclockwise direction when looking down from the top of the motor 11.

In addition, the width of the drain port 1223a in the depth direction of the drain chamber 1221 may be gradually increased in the counterclockwise direction to improve the smoothness of the counterclockwise drainage of the water flow, and to reduce interference of the size of the drain port 1223a with the water flow along the inner wall of the drain chamber 1221 when the water flow is clockwise. The width of the circulation port 1223b in the depth direction of the drainage chamber 1221 may be gradually increased in the clockwise direction to improve the smoothness of the clockwise drainage of the water flow, and to reduce the interference of the size of the circulation port 1223b with the water flow flowing along the inner wall of the drainage chamber 1221 when the water flow is counterclockwise.

In some embodiments, the first pipe portion 1225 may extend in a direction parallel to the force at the intersection with the drain port 1223a when the water flows counterclockwise, to effectively utilize the water flow force and improve the drainage efficiency. The extending direction of the second pipe portion 1226 may also be parallel to the acting force at the intersection point with the circulation port 1223b when the water flow flows clockwise, so as to effectively use the acting force of the water flow and improve the water outlet efficiency of the circulation port 1223b.

It should be noted that, the inclination angle of the extending direction of the pipe with respect to the tangent line may be 30 ° to 60 °, or may be other angles other than right angles, which is not limited in this disclosure. In an embodiment, the pipe provided with the water inlet 1222 extends towards the first direction, the first pipe portion 1225 extends at a predetermined inclination angle to the corresponding tangent line and is opposite to the first direction, and the second pipe portion 1226 extends at a predetermined inclination angle to the corresponding tangent line and is opposite to the first direction. Further, the cross-sectional size of the drain port 1223a may be larger than that of the circulation port 1223b to obtain a larger drain speed in the case of draining.

In some embodiments, the drain opening 1223a includes opposite first and second ends 1223c, 1223d in the circumferential direction of the drain cavity 1221, the first end 1223c may be provided with a deflector structure 1228 protruding from an edge of the drain opening 1223a, and when the impeller 121 is rotated clockwise, water flows along the deflector structure 1228 to the second end 1223d, and when the impeller 121 is rotated counterclockwise, water flows along the second end 1223d into the drain opening 1223a. That is, the flow guiding structure 1228 forms a smooth surface of a certain height at the edge of the drain opening 1223a, and when the impeller 121 rotates clockwise, the water flow passes over the drain opening 1223a directly to the second end 1223d by the inertia of the water flow flowing along the surface of the flow guiding structure 1228. When the impeller 121 rotates counterclockwise, water flows along the second end 1223d directly into the drain 1223a.

In other embodiments, the circulation port 1223b includes opposite third and fourth ends 1223e and 1223f in the circumferential direction of the drainage cavity 1221, the third end 1223e may be provided with a flow guiding structure 1228 protruding from the edge of the drainage port 1223a, and when the impeller 121 rotates counterclockwise, water flows along the flow guiding structure 1228 to the fourth end 1223f, and when the impeller 121 rotates clockwise, water flows into the circulation port 1223b along the fourth end 1223f. That is, the flow guiding structure 1228 forms a smooth surface with a certain height at the edge of the circulation port 1223b, and when the impeller 121 rotates counterclockwise, the water flow passes through the circulation port 1223b to directly reach the fourth port 1223f by utilizing the inertia of the water flow flowing along the surface of the flow guiding structure 1228. When the impeller 121 rotates counterclockwise, water flows along the fourth end 1223f directly into the circulation port 1223b.

In the above embodiment, the motor 11 includes the brushless dc motor 11, and the brushless dc motor 11 replaces the motor 11 with a mechanical commutator with an electronic commutator, so that a better use effect can be obtained when the motor 11 is switched in the forward and reverse directions.

In some embodiments, a preset interval may be provided between the impeller 121 and the filter 13 to avoid structural interference between the impeller 121 and the filter 13, so that the pump body 12 operates normally. Meanwhile, the preset interval provides a falling space for depositing the large weight, so that interference of the large weight to the impeller 121 after entering the drainage cavity 1221 is avoided.

In some embodiments, the height of the housing 122 may be controlled between 40mm and 50mm to reduce the space occupation of the drain assembly 1, reduce the cost, reduce the residual water in the pump body 12, and avoid the sanitary problems of bacteria growth caused by sewage accumulation. For example, the height of the housing 122 may be 45mm.

It should be noted that, the housing 122 and the motor 11 may be fixedly connected through a threaded connection. After assembly, the motor 11 is positioned at the top of the housing 122 and the filter 13 is positioned at the bottom of the drain chamber 1221 within the housing 122.

The present disclosure further provides a washing machine comprising the above drain assembly 1.

Wherein the drain assembly 1 may be connected to the washing machine main body through a fixed mounting structure on the motor 11. For example, the motor 11 is provided with a connection table, the connection table is provided with three threaded connection holes distributed in a triangle shape, and the motor 11 and the washing machine body can be fixedly connected through the threaded connection holes and the threaded connection pieces. The drain assembly 1 may be provided at a bottom position of the washing machine.

Since the filter 13 of the drainage assembly 1 of the washing machine is disposed in the drainage cavity 1221 and is located at the bottom of the drainage cavity 1221, large impurities and the like in the drainage cavity 1221 can be deposited on the filter 13, and small impurities can be directly discharged from the water outlet 1223, thereby avoiding the influence of the large impurities on the operation of the impeller 121 and avoiding frequent cleaning due to the accumulation of the small impurities on the filter 13. Therefore, the structure reduces the blocking probability of the drainage assembly 1 and improves the user experience of the washing machine.

The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present disclosure.

Claims (10)

1. A drain assembly, comprising:

a motor;

the pump body comprises a shell and an impeller; the shell encloses a drainage cavity; the impeller is assembled in the drainage cavity and is connected with the output end of the motor; the shell is provided with a water inlet and at least one water outlet which are respectively communicated with the drainage cavity;

the filter is detachably assembled in the drainage cavity, and the filter is positioned at the bottom of the drainage cavity in the gravity direction.

2. The drain assembly of claim 1, wherein the housing is provided with an assembly opening in communication with the drain chamber, the filter being plugged to the drain chamber through the assembly opening.

3. The drain assembly of claim 1, wherein the filter includes a support structure and a gripping structure coupled to the support structure; the bearing structure is accommodated at the bottom of the drainage cavity, and the holding structure is exposed out of the pump body.

4. The drain assembly of claim 1, wherein the water outlet includes a drain port and a circulation port; the water outlet is communicated with the water draining structure, and the circulating port is communicated with the circulating spraying structure.

5. The drain assembly of claim 4, wherein the drain opening and the circulation opening are disposed on opposite sides of the housing.

6. The drain assembly of claim 4, wherein the housing includes a main body portion and first and second conduit portions disposed outside the main body portion; the main body part encloses the drainage cavity;

the first pipeline part is communicated with the drainage cavity through the drainage outlet; the second pipeline part is communicated with the drainage cavity through the circulating port;

the straight line of the extending direction of the first pipeline part is not intersected with the rotating shaft of the impeller, and/or the straight line of the extending direction of the second pipeline part is not intersected with the rotating shaft of the impeller.

7. The drain assembly of claim 4, wherein the drain opening includes opposed first and second ends in a circumferential direction of the drain cavity, the first end being provided with a deflector structure protruding beyond an edge of the drain opening; when the impeller rotates clockwise, water flows to the second end along the flow guiding structure; when the impeller rotates counterclockwise, water flows along the second end into the drain opening.

8. The drain assembly of claim 1, wherein the motor comprises a brushless dc motor.

9. The drain assembly of claim 1, wherein a predetermined spacing is provided between the impeller and the filter.

10. A washing machine comprising a drain assembly as claimed in any one of claims 1 to 9.