CN217438487U

CN217438487U - Water pump and clothes treatment device

Info

Publication number: CN217438487U
Application number: CN202220765375.7U
Authority: CN
Inventors: 朱磊; 周椿浩; 汪坤; 黄栋
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-09-16
Anticipated expiration: 2032-03-31

Abstract

The embodiment of the utility model relates to a water pump and a clothes processing device, which comprises a pump shell, wherein the pump shell is provided with a cavity which is divided into a filter cavity and an impeller cavity by a separator; the wall of the impeller cavity is provided with a circulation port communicated with the inner cavity of the roller of the clothes processing device and a water outlet communicated with the outside, and the circulation port and the water outlet are arranged at intervals; the separator is close to one side of impeller cavity has the buffering recess, just the buffering recess is located the circulation mouth with between the outlet, just the buffering recess is followed the circulation mouth extremely the direction of outlet extends, so that rivers in the impeller cavity are through form turbulent state during the buffering recess, can avoid the washing water to continue to flow along the direction of flow to a certain extent after the washing water forms the vortex promptly, and then prevent to take place the phenomenon of shui between circulation mouth and the outlet.

Description

Water pump and clothes treatment device

Technical Field

The embodiment of the utility model provides a relate to life electrical apparatus technical field, especially relate to a water pump and clothing processing apparatus.

Background

In the related art, the laundry treating apparatus may employ a water pump to perform an operation of circulating the washing water or discharging the washing water. That is, the water circulation is realized by changing the rotation direction of the impeller of the water pump so that the washing water is discharged from the drain port to realize the water drainage or so that the washing water is discharged from the circulation port to realize the water circulation.

However, when the water discharge operation is required, the washing water may enter the circulation port, or when the water circulation operation is required, the washing water may enter the drain port, thereby causing a water cross phenomenon at the drain port and the circulation port.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem or at least partially solve the technical problem, an embodiment of the present invention provides a water pump and a laundry treatment device.

In a first aspect, an embodiment of the present invention provides a water pump, including a pump housing, the pump housing having a cavity, the cavity being divided into a filter chamber and an impeller chamber by a partition; the wall of the impeller cavity is provided with a circulation port communicated with the inner cavity of the roller of the clothes processing device and a water outlet communicated with the outside, and the circulation port and the water outlet are arranged at intervals;

one surface of the separator, which is close to the impeller cavity, is provided with a buffer groove, the buffer groove is positioned between the circulating port and the water outlet, and the buffer groove extends along the direction from the circulating port to the water outlet.

In this technical scheme, through setting up the buffer groove that extends along the direction of circulation mouth to outlet at the one side of the separator towards the impeller cavity that is located the pump case cavity for the washing water in the impeller cavity flows through buffer groove under the drive of impeller, can form the turbulent flow, can avoid the washing water to continue to flow along the flow direction originally to a certain extent after the washing water forms the vortex promptly, and then prevents to take place the phenomenon of crossing water between circulation mouth and the outlet. Namely, when the water discharging operation is carried out, the washing water flows through the water discharging port and then continues to flow to the buffer groove, turbulence is generated, and the washing water in a turbulent state cannot continue to flow to the circulating port, so that the circulating port is subjected to water mixing; or when the circulating water operation is carried out, the washing water flows through the circulating port and then continues to flow onto the buffer groove, turbulence is generated, the washing water cannot continue to flow to the water outlet, and water leakage occurs in the water outlet.

Optionally, the buffer groove is an arc-shaped groove extending along the circumferential direction of the impeller cavity.

In the technical scheme, the buffer groove is an arc-shaped groove extending along the circumferential direction of the impeller cavity, so that the arc-shaped groove is close to the flow direction of the washing water in the impeller cavity, the washing water can conveniently flow into the buffer groove to form a turbulent flow state, and the washing water can be prevented from continuously flowing to cause water mixing.

Optionally, the center of the circle where the arc-shaped groove is located is coaxial with the center of the impeller cavity.

In the technical scheme, the circle center of the arc-shaped groove is coaxially arranged with the center of the pump shell, so that the inner part of the impeller cavity is more attractive and neat.

Optionally, the buffer grooves include at least two, and the at least two buffer grooves are sequentially arranged along the radial direction of the impeller cavity.

In this technical scheme, including the radial at least two that set gradually along the impeller cavity through setting up the buffering recess to can carry out buffering vortex effect to the washing water jointly through at least two buffering recesses, can not take place to crowd water with the outlet in order to further ensure to circulate mouthful.

Optionally, the width dimension of the buffer groove along the radial direction of the impeller cavity ranges from 1mm to 2 mm.

In the technical scheme, the width size of the buffer groove along the radial direction of the impeller cavity is reasonably arranged, so that a proper amount of washing water can generate turbulence when flowing through the buffer groove, further a vortex is generated, the flow speed of the washing water which continuously flows can be reduced to a certain extent, and the phenomenon of water cross between the circulating port and the water outlet is prevented.

Optionally, a depth dimension of the buffer groove in an axial direction of the impeller cavity is not greater than 3 mm.

In the technical scheme, the size of the buffer groove along the axial direction of the impeller cavity is reasonably arranged, so that a proper amount of washing water can flow through the buffer groove to generate turbulent flow and further generate vortex, the flow speed of the washing water which continuously flows can be reduced to a certain degree, and the water mixing phenomenon between the circulating port and the water outlet is prevented.

Optionally, a water-resisting boss is arranged on the cavity wall of the impeller cavity, the water-resisting boss is located between the water outlet and the circulation port, and the buffer groove is formed in the water-resisting boss.

In this technical scheme, through set up the water proof boss on the chamber wall at the impeller cavity, and will cushion the recess and set up on the water proof boss to not only can carry out the vortex through buffering recess to the washing water, block that the washing water continues to flow and lead to the cluster outside water, can also block the washing water through the water proof boss in order to prevent the cluster water.

Namely, when the water discharging operation is carried out, the washing water flows through the water discharging port and then is blocked on the side surface of one side of the water-stop boss close to the water discharging port, so that the washing water is prevented from flowing into the circulating port continuously to cause water mixing; or, when the circulating water operation is carried out, the washing water flows through the circulating port and then is blocked on the side face of the water-resisting boss close to the circulating port, so that the washing water is prevented from flowing into the water outlet continuously to cause water leakage.

That is to say, through the dual function of water proof boss and buffering recess, can further ensure that circulation mouth and outlet can not take place to cross water.

Optionally, in a direction from the center of the impeller cavity to the cavity wall of the impeller cavity, the water-resisting boss includes a first water-resisting portion and a second water-resisting portion which are sequentially arranged, and the buffer groove is arranged on the first water-resisting portion;

the height of the first water insulating part along the axial direction of the impeller cavity is smaller than the height of the second water insulating part along the axial direction of the impeller cavity.

In this technical scheme, including first water-stop portion and second water-stop portion through setting up the water-stop boss, and first water-stop portion and second water-stop portion are different along the height dimension of the axial direction of impeller cavity to make first water-stop portion and second water-stop portion can be applicable to blockking of the washing water of the different water levels in the impeller cavity, thereby prevent that circulation mouth and outlet from taking place to cluster water.

Optionally, the first water insulation part is arranged in parallel with the impeller in the impeller cavity.

In this technical scheme, through setting up first water-stop portion and impeller parallel arrangement to make first water-stop portion not only can not cause the interference to the rotation of impeller, and can make arranging of first water-stop portion and impeller more reasonable regular.

Optionally, the range of the gap between the first water insulation part and the impeller is 3mm-5 mm.

In this technical scheme, through the clearance scope between the first portion that cuts off water and the impeller of reasonable setting to make the clearance between first portion that cuts off water and the impeller can not too big cause the water pump lift not enough, and can not make the clearance undersize make debris easily pile up.

Optionally, at least one side surface of the second water insulation part close to the water discharge opening and/or at least one side surface of the second water insulation part close to the circulation opening is formed into a water blocking surface.

In the technical scheme, a side surface of the second water-isolating part, which is at least close to the water outlet, and/or a side surface of the second water-isolating part, which is at least close to the circulating port, is formed into a water-blocking surface, so that when water is drained, washing water flows through the water outlet and then is blocked on the water-blocking surface formed on the side surface of the second water-isolating part, which is at least close to the water outlet, so that the washing water is prevented from continuously flowing into the circulating port to cause water mixing; and/or, when the circulating water operation is carried out, the washing water flows through the circulating port and then is blocked on the water blocking surface formed on the side surface of one side, close to the circulating port, of the second water isolating part, so that the washing water is prevented from continuously flowing into the water outlet to cause water mixing.

Optionally, the water retaining surface close to one side of the water outlet is an arc surface protruding towards the water outlet; and/or the water retaining surface close to one side of the circulation port is a cambered surface protruding towards the circulation port.

In this technical scheme, be close to the water retaining surface of outlet one side for towards the convex cambered surface of outlet and/or be close to the water retaining surface of circulation mouth one side for towards the convex cambered surface of circulation mouth through the setting, thereby make the water retaining surface can form the water retaining surface that carries out effective water conservancy diversion to water, so that can also carry out the water conservancy diversion with washing water towards circulation mouth or outlet when blockking to washing water through the water retaining surface, make washing water discharge from required outlet or circulation mouth, in order to avoid taking place the cluster water.

Optionally, a flow guide notch is formed in the position, close to the circulation port, of the waterproof boss; the width of the diversion gap is gradually reduced along the direction from the water inlet of the diversion gap to the bottom of the diversion gap.

In this technical scheme, through setting up the water conservancy diversion breach, and the width of water conservancy diversion breach reduces along the direction of water inlet to bottom gradually to can make the water conservancy diversion breach play and carry out the effect of water conservancy diversion to the washing water, with this prevent to take place to cross the water phenomenon between circulation mouth and the outlet.

Optionally, the water-stop boss and the pump shell are integrally formed.

In the technical scheme, the water-resisting boss and the pump shell are integrally formed, so that the process is saved, and the strength of the pump shell can be increased.

In a second aspect, an embodiment of the present invention provides a clothes treating apparatus, including a housing, a roller disposed in the housing, and a water pump disposed between the housing and the roller.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the embodiments of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1-2 are external views of a water pump according to an embodiment of the present invention at different viewing angles;

fig. 3 is a front view of the water pump according to the embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

fig. 5 is a side view of a water pump according to an embodiment of the present invention;

fig. 6 is a cross-sectional view at B-B of fig. 5.

Wherein, 1, pump casing; 11. an impeller cavity; 111. a water outlet; 112. a circulation port; 113. a waterproof boss; 114. water retaining surface; 115. a buffer groove; 116. a first water-insulating portion; 117. a second water insulating portion; 118. a diversion gap; 12. a filter chamber; 121. a filter port; 122. a separator; 123. a through hole; 2. an impeller; 3. a limit hook.

Detailed Description

In order that the above-mentioned objects, features and advantages of the embodiments of the present invention may be more clearly understood, further description of aspects of the embodiments of the present invention will be made below. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention, but the embodiments of the invention may be practiced in other ways than those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present invention, and not all of them.

Generally, a laundry processing apparatus, such as a washing machine, includes a housing, a drum disposed in the housing, and a water pump disposed between the drum and the housing, wherein after washing water in the drum is delivered into an impeller chamber of the water pump, the water pump can be used to discharge water in the impeller chamber to the outside of the washing machine through a water discharge port on the water pump to implement a water discharge operation, or discharge water in the impeller chamber into an inner chamber of the drum through a circulation port on the water pump to implement a water circulation operation. That is, the water pump used in the current washing machine is a circulation and drainage integrated water pump.

Specifically, the circulating and draining integrated water pump used in the washing machine at present comprises a motor, a pump shell and an impeller arranged in an impeller cavity of the pump shell, wherein the motor can be a brushless direct current motor, and the motor is in driving connection with the impeller. The pump shell is provided with a water outlet communicated with the outside and a circulating port communicated with the inner cavity of the roller. For example, when the water needs to be drained, the motor can drive the impeller to rotate clockwise, so that the water conveyed into the impeller cavity is driven to be drained through the water outlet; when circulating water operation is required, the motor can drive the impeller to rotate anticlockwise, so that water conveyed into the impeller cavity is driven to be discharged through the circulating port and flow back to the inner cavity of the roller. That is, the motor drives the impeller to rotate forward and backward to enable the flow direction of water flow to be different, so that circulating water operation or water drainage operation is realized.

However, in the related art, since one water pump is used for the circulation water operation or the drainage operation, a difference in the lift or a difference in the level of water is caused, and thus, it is easy to cause the simultaneous operation of the drainage port and the circulation port, that is, the drainage port and the circulation port through which water is drained during the drainage operation or the drainage port through which water is drained during the circulation water operation, and the water leakage phenomenon occurs between the drainage port and the circulation port.

Example one

In order to effectively solve the problem of water leakage at the water outlet and the circulation port in the related art, referring to fig. 1 to 6, the present embodiment provides a water pump, which may be used in a laundry treatment apparatus such as a washing machine, and in particular, may be a centrifugal pump. The centrifugal pump comprises a pump shell 1, a motor and an impeller 2, and particularly can realize drainage operation when the motor drives the impeller 2 to rotate clockwise, and realize circulating water operation when the impeller 2 rotates anticlockwise, or can also realize drainage operation when the motor drives the impeller 2 to rotate anticlockwise, and realize circulating water operation when the impeller 2 rotates clockwise, and is particularly determined according to the internal structure of the clothes treatment device.

In this embodiment, it is set that the water discharge operation is realized when the impeller 2 rotates clockwise, the circulating water operation is realized when the impeller 2 rotates counterclockwise, the water discharge operation is realized by the clockwise rotation of the impeller 2 hereinafter, and the circulating water operation is realized by the counterclockwise rotation of the impeller 2 for related description.

Specifically, the pump housing 1 of the water pump of the embodiment is provided with an impeller cavity 11 for placing the impeller 2 and a filter cavity 12 for water inflow, a partition 122 in the pump housing 1 divides the cavity of the pump housing 1 into the filter cavity 12 and the impeller cavity 11 which are communicated with each other, and the filter cavity 12 is used for conveying the washing water in the drum inner cavity of the clothes treatment device into the impeller cavity 11.

Specifically, the wall of the filter chamber 12 is provided with a filter opening 121 communicated with the drum inner chamber of the laundry treatment device, the wall of the impeller chamber 11 is provided with a circulation opening 112 communicated with the drum inner chamber of the laundry treatment device and a drain opening 111 communicated with the outside, and the circulation opening 112 and the drain opening 111 are arranged at intervals, so that water circulation can be realized by discharging the washing water entering the impeller chamber 11 from the circulation opening 112 into the drum inner chamber or discharging the washing water from the drain opening 111 to the outside of the laundry treatment device.

In a specific implementation, one end of the impeller 2 in the impeller cavity 11 is used for being in transmission connection with a motor. The impeller 2 is connected to a rotation shaft of a motor, and receives a rotation force by the motor to rotate in the impeller chamber 11 to make the washing water in the impeller chamber 11 flow to be discharged from the drain port 111 or discharged from the circulation port 112.

Referring to fig. 1 to 6, a side of the partition 122 adjacent to the impeller chamber 11 has a buffer groove 115 extending in a direction from the circulation port 112 to the drain port 111, for example, the buffer groove 115 may be an arc-shaped groove extending in a circumferential direction of the pump housing 1, and the buffer groove 115 is located between the circulation port 112 and the drain port 111, so that a turbulent state is formed when water in the impeller chamber 11 passes through the buffer groove 115. That is, the buffer groove 115 is disposed in the impeller cavity 11 and may contact with the washing water in the impeller cavity 11 to disturb the flow of the washing water, so that the washing water is disturbed and forms a vortex state, and the washing water in the vortex state cannot flow forward.

For example, when the water discharging operation is performed, after the washing water flows to the drain opening 111 clockwise under the agitation of the impeller 2, a part of the washing water is not discharged from the drain opening 111 and continues to flow onto the buffer groove 115, and a vortex is formed under the turbulent flow effect of the buffer groove 115, so that the washing water cannot continue to flow to the circulation port 112 clockwise, thereby preventing the water from mixing at the circulation port 112.

Similarly, when the circulating water operation is performed, after the washing water flows to the circulation port 112 along the counterclockwise direction under the agitation of the impeller 2, part of the washing water is not discharged from the circulation port 112 and continues to flow to the buffer groove 115, and a vortex is formed under the turbulent flow effect of the buffer groove 115, so that the washing water cannot continue to flow to the drain port 111 along the counterclockwise direction, and thus, the water leakage of the drain port 111 can be avoided.

The specific working process of the water pump is as follows: when the water discharging operation is performed, the motor is started, the impeller 2 is driven to rotate clockwise, the washing water in the impeller cavity 11 is stirred to flow clockwise when the impeller 2 rotates, part of the washing water flows to the water outlet 111 and flows out of the clothes treatment device through the water outlet 111, and part of the washing water flows through the water outlet 111, impacts on the buffer groove 115 to form a vortex, then flows back to the water outlet 111 and flows out through the water outlet 111, so that the water discharging operation is realized, and water leakage at the circulating port 112 can be avoided. When the circulating water operation is performed, the motor is started, the impeller 2 is driven to rotate anticlockwise, the washing water in the impeller cavity 11 is stirred to flow anticlockwise when the impeller 2 rotates, part of the washing water flows to the circulation port 112 and flows out through the circulation port 112 and then flows back to the inner cavity of the roller to realize recycling, and part of the washing water flows through the circulation port 112 and then impacts on the buffer groove 115 to form a vortex, and then flows back to the circulation port 112 and flows back to the inner cavity of the roller through the circulation port 112, so that the circulating water operation is realized, and water mixing at the water outlet 111 can be avoided.

In a concrete implementation, the drain port 111 and the circulation port 112 of the water pump are formed on the outer circumferential surface of the pump case 1, and the drain port 111 communicates with the inside of the impeller chamber 11, and the drain port 111 may be provided to protrude outward from the outer circumferential surface of the pump case 1. When the laundry treating apparatus is performing the draining process, the drain opening 111 serves as a passage along which the washing water in the impeller chamber 11 flows to the outside by the clockwise rotation of the impeller 2.

The circulation port 112 communicates with the inside of the impeller chamber 11, and protrudes outward from the outer circumferential surface of the pump housing 1. When the laundry treating apparatus performs the circulation water operation, the circulation port 112 serves as a passage along which the washing water in the impeller chamber 11 flows into the drum interior by the counterclockwise rotation of the impeller 2.

The drain port 111 and the circulation port 112 are formed at different positions on the outer wall of the pump housing 1. In one embodiment, the drain port 111 and the circulation port 112 may be provided in one piece, in other embodiments, the drain port 111 may be provided in plural, the circulation port 112 may be provided in plural, the inner diameters of the plurality of drain ports 111 may be the same or different, and the inner diameters of the plurality of circulation ports 112 may be the same or different, which is specifically set according to the amount of washing water to be drained or circulated.

Further, in the present embodiment, the aperture of the drain port 111 and the aperture of the circulation port 112 may be set to be uniform, so that the drainage efficiency and the circulation water efficiency may be substantially the same; alternatively, the diameter of the drain port 111 may be larger than the diameter of the circulation port 112, so that the drainage efficiency is higher than the circulation water efficiency; alternatively, the diameter of the drain port 111 may be smaller than the diameter of the circulation port 112, so that the circulation water efficiency is higher than the drainage efficiency.

In addition, referring to fig. 1, in this embodiment, the aperture of the filtering port 121 is larger than the apertures of the water discharge port 111 and the circulation port 112, and water in the drum chamber enters the filtering chamber 12 through the filtering port 121 and then enters the impeller chamber 11 communicated with the filtering chamber 12, and the water entering the impeller chamber 11 can be discharged through the water discharge port 111 to realize a water discharge operation or discharged from the circulation port 112 to realize a water circulation operation.

Specifically, the filter opening 121 can be communicated with the inner cavity of the drum through a water inlet pipe, the water outlet 111 can be communicated with the outside through a water drain pipe, and the circulation opening 112 can be communicated with the inner cavity of the drum through a circulation pipe. The water inlet pipe, the water outlet pipe and the circulating pipe can be soft pipes such as plastic corrugated pipes or rubber pipes.

Referring to fig. 2, the partition 122 has a through-hole 123 at the center thereof for communicating the filter chamber 12 and the impeller chamber 11, and the buffer groove 115 is adjacent to the through-hole 123. Specifically, the distance between the buffer groove 115 and the through hole 123 may be set according to actual needs, and this embodiment does not specifically limit this.

In addition, one end of the buffer groove 115 close to the drain opening 111 may extend to one end of the drain opening 111 close to the circulation opening 112, or may have a certain distance from the drain opening 111; and/or, an end of the buffer groove 115 close to the circulation port 112 may extend to an end of the circulation port 112 close to the drain port 111, or may be spaced from the circulation port 112.

That is, along the drawing direction shown in fig. 2, if the drain opening 111 is set to the left side of the circulation opening 112, the left end of the buffer groove 115 may be set to extend to the drain opening 111, and the right end of the buffer groove 115 may be set to extend to the circulation opening 112; or, the left end of the buffer groove 115 does not extend to the drain opening 111, and the right end of the buffer groove 115 does not extend to the circulation opening 112; or, the left end of the buffer groove 115 extends to the drain opening 111, and the right end of the buffer groove 115 does not extend to the circulation opening 112; alternatively, the left end of the buffer groove 115 does not extend to the drain port 111, and the right end of the buffer groove 115 extends to the circulation port 112. The extension length of the buffer groove 115 along the circumferential direction of the impeller cavity 11 can be set according to actual needs, and this embodiment is not limited in detail.

In this embodiment, the extension shape of the buffer groove 115 may be an arc shape, and the buffer groove 115 is an arc-shaped groove, so that the arc-shaped buffer groove 115 is close to the flow direction of the washing water in the impeller cavity 11, and the washing water flows into the buffer groove 115 to form a turbulent state, thereby preventing the washing water from flowing continuously and causing water mixing. Of course, in other implementations, the buffer groove 115 may be a horizontal groove or a wavy groove along the drain opening 111 to the circulation opening 112.

Further, the cross-sectional shape for the buffer groove 115 may be U-shaped, or in other implementations, the cross-sectional shape of the buffer groove 115 may be semicircular or elliptical or square.

In concrete implementation, the width of the buffer groove 115 along the radial direction of the impeller cavity 11 (refer to the r direction shown in fig. 2) ranges from 1mm to 2mm, and the depth of the buffer groove 115 along the axial direction of the impeller cavity 11 (refer to the x direction shown in fig. 6) is not greater than 3mm, so that the size of the buffer groove 115 along the radial direction of the impeller cavity 11 can be reasonably set, so that a proper amount of washing water can generate turbulence when flowing through the buffer groove 115, and further a vortex can be generated, thereby reducing the continuous flowing speed of the washing water to a certain extent, and further preventing the water leakage phenomenon between the circulation port 112 and the water discharge port 111.

Illustratively, the width dimension of the relief groove 115 in the radial direction of the impeller cavity 11 (refer to the r direction shown in fig. 2) may be 1mm, or 1.5mm or 2 mm. The buffer grooves 115 may have a depth dimension of 1mm, or 1.5mm, or 2mm, or 2.5mm in the axial direction of the impeller cavity 11 (refer to the x-direction shown in fig. 6). Specifically, the size of the buffer groove 115 in the radial direction of the impeller cavity 11 and the depth of the buffer groove in the axial direction of the impeller cavity 11 are related to the amount of the washing water in the impeller cavity 11 and the discharge amount of the washing water, and this embodiment is not particularly limited thereto.

Referring to fig. 2, in the present embodiment, the center of the buffer groove 115 may be coaxially arranged with the center of the pump housing 1, so that it is not only convenient to manufacture the buffer groove 115, but also convenient to make the washing water flowing in the impeller cavity 11 along the rotation direction of the impeller 2 flow into the buffer groove 115 to generate turbulence, thereby avoiding the water cross-flow caused by the continuous flow of the washing water.

That is, when the center of the circle where the arc-shaped groove is located is coaxially arranged with the center of the impeller cavity 11, the center of the impeller 2 in the impeller cavity 11 and the center of the impeller cavity 11 are also generally coaxially arranged, so that the flow direction of the washing water in the impeller cavity 11 agitated by the impeller 2 is closer to the extending track of the buffer groove 115 along the circumferential direction of the impeller cavity 11, and thus the washing water can be better disturbed, so as to avoid water crosstalk between the water discharge port 111 and the circulation port 112.

During the concrete implementation, buffering recess 115 both can set up one, also can set up many, includes along the radial many that set gradually of impeller cavity 11 through setting up buffering recess 115 to can cushion the vortex effect through many buffering recesses 115 jointly to the washing water, in order to further ensure that circulation mouth 112 and outlet 111 can not take place to cross water.

Further, when the buffer grooves 115 are provided in plural, the plural buffer grooves 115 are arranged in sequence in the radial direction of the impeller chamber 11 (refer to the r direction shown in fig. 2). Specifically, the extension lengths of the plurality of buffer grooves 115 arranged in sequence in the radial direction of the impeller cavity 11 in the circumferential direction of the impeller cavity 11 may be uniform or nonuniform.

Optionally, a water-stop boss 113 may be disposed on the cavity wall of the impeller cavity 11, and the buffer groove 115 is disposed on the water-stop boss 113, so that the washing water may be disturbed to form a vortex through the buffer groove 115, the washing water is prevented from flowing continuously to cause water mixing, and the washing water may be prevented from mixing through the water-stop boss 113.

That is, when the water discharging operation is performed, the washing water is stopped on the side surface of the water stop boss 113 near the water outlet 111 after passing through the water outlet 111, so as to prevent the washing water from flowing into the circulation port 112 to cause water leakage; or, when the water circulating operation is performed, the washing water flowing through the circulation port 112 is blocked on the side surface of the water stop boss 113 near the circulation port 112, so as to prevent the washing water from flowing into the water outlet 111 continuously to cause water leakage.

The specific working process of being provided with the water pump of water proof boss 113 is: when the water discharging operation is performed, the motor is started, the impeller 2 is driven to rotate clockwise, the washing water in the impeller cavity 11 is stirred to flow clockwise when the impeller 2 rotates, part of the washing water flows to the water outlet 111 and flows out of the clothes treatment device through the water outlet 111, and part of the washing water flows through the water outlet 111 and impacts on the water-stop boss 113 to form a vortex and then flows out through the water outlet 111, so that the water discharging operation is realized, and the water leakage at the circulation port 112 can be avoided. When circulating water operation is carried out, the motor is started, the impeller 2 is driven to rotate anticlockwise, washing water in the impeller cavity 11 is stirred to flow anticlockwise when the impeller 2 rotates, part of the washing water flows to the circulation port 112 and flows out through the circulation port 112 and then flows back to the inner cavity of the roller to be recycled, and part of the washing water flows through the circulation port 112 and then impacts on the water-resisting boss 113 to form a vortex and then flows into the inner cavity of the roller through the circulation port 112, so that circulating water operation is realized, and water leakage at the water outlet 111 can be avoided.

In summary, in the water pump of the present embodiment, the water stop boss 113 and the buffer groove 115 serve to prevent water from flowing between the circulation port 112 and the drain port 111.

The waterproof boss 113 may be a solid boss, so that the processing and manufacturing are easy; or, the water-stop boss 113 may also be a hollow structure, so that the weight of the water pump having the water-stop boss 113 may be effectively reduced, and a lightweight design may be implemented.

In specific implementation, the water-resisting boss 113 comprises a first water-resisting part 116 and a second water-resisting part 117 which are sequentially arranged along the center of the impeller cavity 11 towards the cavity wall direction of the impeller cavity 11, and the buffer groove 115 is arranged on the first water-resisting part 116; the height dimension of the first water cut-off portion 116 in the axial direction of the impeller chamber 11 is smaller than the height dimension of the second water cut-off portion 117 in the axial direction of the impeller chamber 11.

That is, along the axial direction of impeller chamber 11 (refer to x direction shown in fig. 6), the height dimension of first water-stopping part 116 is smaller than the height dimension of second water-stopping part 117, the left end faces of first water-stopping part 116 and second water-stopping part 117 may be arranged flush, and the right end of second water-stopping part 117 protrudes out of the right end of first water-stopping part 116, so that first water-stopping part 116 and second water-stopping part 117 may be suitable for blocking of washing water of different water levels in impeller chamber 11, thereby preventing water leakage of circulation port 112 and water discharge port 111.

That is, when the water level delivered into the impeller cavity 11 is high, the first water-insulating part 116 and the second water-insulating part 117 can block water together at the same time, and water leakage between the water outlet 111 and the circulation port 112 is prevented; when the water level delivered into the impeller chamber 11 is low, the water is blocked mainly by the first water insulating part 116 and the buffer groove 115 on the first water insulating part 116, and the water leakage between the water outlet 111 and the circulation port 112 is prevented.

In a specific implementation, referring to the drawing direction shown in fig. 4, the water blocking surface 114 may be disposed only on the right side surface of the second water blocking portion 117, that is, along the direction from the outer edge of the impeller cavity 11 to the center (referring to the direction r shown in fig. 4), and the water blocking surface 114 may be an inclined surface inclined toward the circulation port 112 or an arc surface curved toward the circulation port 112, so as to block and guide the washing water. For example, when the water circulation operation is performed, the washing water flowing through the circulation port 112 is blocked by the water blocking surface 114 formed on the side surface of the second water blocking part 117 near the circulation port 112, so as to prevent the washing water from flowing into the water outlet 111 continuously and causing water leakage.

Alternatively, the water blocking surface 114 may be provided only on the left side surface of the second water blocking part 117, that is, along the direction from the outer edge of the impeller chamber 11 to the center (refer to the direction r shown in fig. 4), and the water blocking surface 114 may have an inclined surface inclined toward the drain opening 111 or an arc surface curved toward the drain opening 111, so that the washing water may be blocked and guided. For example, when the water discharging operation is performed, the washing water flowing through the water discharging opening 111 is stopped by the water blocking surface 114 formed on the side surface of the second water blocking part 117 near the water discharging opening 111, so as to prevent the washing water from flowing into the circulation opening 112 continuously and causing water leakage.

Alternatively, the water blocking surface 114 may be provided on both the left side surface and the right side surface of the second water blocking portion 117. When the water circulating operation is performed, the washing water flowing through the circulation port 112 is stopped on the water blocking surface 114 formed on the side surface of the second water isolating part 117 close to the circulation port 112, so as to prevent the washing water from flowing into the water outlet 111 continuously to cause water mixing; when the water discharging operation is performed, the washing water flowing through the water discharging opening 111 is stopped on the water blocking surface 114 formed on the side surface of the second water blocking part 117 near the water discharging opening 111, so as to prevent the washing water from flowing into the circulation opening 112 continuously to cause water leakage.

In this embodiment, the water blocking surface 114 may be a cambered surface structure. Specifically, when the water blocking surface 114 is formed on the side surface of the second water blocking portion 117 close to the drain opening 111, the water blocking surface 114 close to the drain opening 111 is a curved surface protruding toward the drain opening 111. The water retaining surface 114 close to one side of the water outlet 111 is a cambered surface protruding towards the water outlet 111, so that the water retaining surface 114 close to one side of the water outlet 111 can form a water retaining surface 114 for effectively guiding water, the washing water can be guided towards the water outlet 111 while being blocked by the water retaining surface 114, the washing water is discharged from the water outlet 111, and the water leakage at the circulating port 112 is avoided.

Or, when the water blocking surface 114 is formed on the side surface of the second water cut-off part 117 close to the circulation port 112, the water blocking surface 114 close to the circulation port 112 is a cambered surface protruding toward the circulation port 112. The water retaining surface 114 close to one side of the circulation port 112 is a cambered surface protruding towards the circulation port 112, so that the water retaining surface 114 close to one side of the circulation port 112 can form a water retaining surface 114 for effectively guiding water, the washing water can be guided towards the circulation port 112 while being blocked by the water retaining surface 114, the washing water is discharged from the circulation port 112, and the water leakage at the water outlet 111 is avoided.

Alternatively, the water blocking surface 114 on the side close to the drain opening 111 is a curved surface projecting toward the drain opening 111, and the water blocking surface 114 on the side close to the circulation opening 112 is a curved surface projecting toward the circulation opening 112. When the water discharging operation is required, the water blocking surface 114 near one side of the water outlet 111 can form a water blocking surface 114 for effectively guiding water, so that the washing water is blocked by the water blocking surface 114 and guided towards the water outlet 111, and the washing water is discharged from the water outlet 111, so as to prevent the water from mixing at the circulation port 112. When the circulating water operation is required, the water blocking surface 114 near one side of the circulating port 112 can form a water blocking surface 114 for effectively guiding water, so that the washing water is blocked by the water blocking surface 114 and guided towards the circulating port 112, and the washing water is discharged from the circulating port 112, so as to prevent the water from flowing through the water outlet 111.

During concrete implementation, the first water isolating part 116 is parallel to the impeller 2 in the impeller cavity 11 and has a clearance range between the impeller 2 of 3mm-5mm, and the clearance range between the first water isolating part 116 and the impeller 2 is reasonably set, so that the flow and the lift difference undersize of the water pump caused by the overlarge clearance range can be avoided, and meanwhile, the sundries accumulation caused by the undersize of the clearance range and the interference caused by the rotation of the impeller 2 can be avoided. The gap between the first water separation portion 116 and the impeller 2 means a distance n between the right side surface of the first water separation portion 116 and the left side surface of the impeller 2 along the x direction shown in fig. 6.

Illustratively, the gap between the first water cut-off portion 116 and the impeller 2 in the impeller chamber 11 may be 3mm, or 4mm, or 5 mm. Similarly, the gap between the second water insulating part 117 and the impeller 2 in the impeller cavity 11 may be 3mm, or 4mm, or 5 mm.

In addition, the first water insulating part 116 can be arranged to be close to one side surface of the impeller 2 in the impeller cavity 11 and be matched with the shape of the impeller 2, so that the impeller 2 in the impeller cavity 11 and the first water insulating part 116 can be arranged more attractively and reasonably on the premise of not influencing the rotation of the impeller 2.

In some embodiments, referring to fig. 2, a diversion notch 118 may be provided at a position of the water stop boss 113 near the circulation port 112, so as to guide the water flow to be discharged to the circulation port 112. In the direction from the water inlet of the diversion notch 118 to the bottom of the diversion notch 118 (refer to the direction t shown in fig. 2), the width of the diversion notch 118 (refer to the dimension d in fig. 2) is gradually reduced, and the arrangement aims at that the part of the circulation port 112 is shielded by the position, close to the circulation port 112, of the water-stop boss 113, so that the water discharge at the circulation port 112 may be influenced to a certain extent, therefore, the gradual reduction of the width of the diversion notch 118 can play a role in diversion of the washing water, so as to quickly guide the washing water to the circulation port 112, and further overcome the problem that the water discharge is insufficient because the part of the circulation port 112 is shielded by the water-stop boss 113.

During specific manufacturing, the water-stop boss 113 and the pump shell 1 can be integrally formed by plastic injection molding, so that the working procedures are saved, and the overall strength of the pump shell 1 is enhanced.

In addition, as shown in fig. 1, the outer wall of the pump case 1 can be further provided with a limiting hook 3, so that a wire connected with a motor of the water pump is fixed, the wire is distributed according to a path limited by the limiting hook 3, and the wiring of the wire is more regular.

Further, the stopper hook 3 may be provided on the pump case 1 at a position away from the drain port 111 and the circulation port 112 to prevent the wire from interfering with the drain pipe communicating with the drain port 111 or with the circulation pipe communicating with the circulation port 112. In specific implementation, the number of the limiting hooks 3 can be two or more, and a wiring path of a wire extending according to a preset path is defined between the limiting hooks 3.

In the concrete implementation, the limiting hook 3 can be integrally formed on the pump shell 1, so that the manufacturing process is simplified; or, the limiting hook 3 can be fixed on the outer wall of the pump shell 1 in a clamping or bonding mode.

Example two

Referring to fig. 1 to 6, the present embodiment also provides a laundry treating apparatus including a casing, a drum disposed in the casing, and a water pump disposed between the casing and the drum.

Wherein the outer case is formed as an external appearance of the laundry treating apparatus. And the housing has an inlet (not shown) through which washing water can enter. The casing has a laundry input port or a laundry output port at a position corresponding to the drum. The laundry input port or the laundry output port may be provided at one side of the casing or at the top of the casing.

For example, the laundry treatment apparatus of the present embodiment may be a washing machine, and the water pump may be a circulation and drainage integrated water pump, so that a circulation water operation and a drainage operation may be implemented.

In a concrete implementation, the water pump of the clothes treating apparatus includes a pump housing 1. The pump casing 1 may include an impeller chamber 11 for placing the impeller 2 and a filter chamber 12 for feeding water. The wall of the filter chamber 12 is provided with a filter opening 121 communicated with the drum inner chamber of the laundry treatment device, the wall of the impeller chamber 11 is provided with a circulation opening 112 communicated with the drum inner chamber of the laundry treatment device and a drain opening 111 communicated with the outside, and the circulation opening 112 and the drain opening 111 are arranged at intervals, so that water circulation can be realized by discharging the washing water entering into the impeller chamber 11 from the circulation opening 112 or water drainage can be realized by discharging the washing water from the drain opening 111.

Referring to fig. 1 to 6, a side of the partition 122 adjacent to the impeller chamber 11 has a buffer groove 115 extending in a circumferential direction of the pump housing 1, and the buffer groove 115 is located between the circulation port 112 and the drain port 111 to form a turbulent state when water in the impeller chamber 11 passes through the buffer groove 115. That is, the buffer groove 115 is disposed in the impeller cavity 11 and may contact with the washing water in the impeller cavity 11 to disturb the flow of the washing water, so that the washing water is disturbed and forms a vortex state, and the washing water in the vortex state cannot flow forward.

Furthermore, a water stop boss 113 is arranged on the cavity wall of the impeller cavity 11, and the water stop boss 113 is located between the circulation port 112 and the water outlet 111, so that the water leakage phenomenon between the circulation port 112 and the water outlet 111 can be avoided. That is, when the water discharging operation is performed, the washing water is blocked by the water blocking boss 113 after passing through the water discharging opening 111, so that the washing water is prevented from flowing into the circulation opening 112 continuously to cause water leakage; when the water circulating operation is performed, the washing water flowing through the circulation port 112 is blocked by the water blocking boss 113, so as to prevent the washing water from flowing into the water outlet 111 continuously to cause water leakage.

In summary, the laundry treating apparatus of the present embodiment can change the rotation direction of the motor, so as to change the rotation direction of the impeller 2, and the water pump of the laundry treating apparatus of the present embodiment can perform the function of the drainage pump and also perform the function of the circulation pump, that is, the drainage operation and the circulation water operation can be realized by one water pump, so that the structure of the laundry treating apparatus is greatly simplified, the volume of the laundry treating apparatus can be reduced, the space is saved, and the cost of the laundry treating apparatus can be reduced.

In addition, the water pump of the present embodiment, the rotation speed of the motor may be set high when the water discharging operation is performed, and the rotation speed of the motor may be set low when the circulating water operation is performed, so that unnecessary noise and energy loss may be prevented.

In the specific implementation, the water pump is located in the shell and between shell and the cylinder, more specifically, the water pump is located the bottom of cylinder, and in case when the wash water in the cylinder inner chamber flows to the impeller cavity 11 of water pump, the water pump can carry out circulating water process or drainage process.

The connection mode of the water pump and the shell is as follows: the pump case 1 is provided with a first connecting portion, the shell is provided with a second connecting portion, and the water pump is fixed on the inner wall of the shell through the matching of the first connecting portion and the second connecting portion. For example, the first connecting part can be a clamping protrusion, the second connecting part is not provided with a clamping groove in clamping fit with the clamping protrusion, and the water pump is fixed on the inner wall of the shell through clamping fit of the clamping protrusion and the clamping groove; or, first connecting portion and second connecting portion are the screw hole, thereby the fastener is worn to establish and is fixed the water pump on the shell inner wall in the screw hole.

In addition, the casing of the clothes treatment device can be made of plastic materials, and can also be made of light alloy materials. In addition, the outer case of the laundry treating apparatus may be square or circular.

Other technical features of the laundry processing apparatus of this embodiment can refer to the description of the first embodiment, and are not repeated herein.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the embodiments of the present invention, and is intended to enable those skilled in the art to understand and implement the embodiments of the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments of the invention. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features of the embodiments disclosed herein.

Claims

1. A water pump is characterized by comprising a pump shell, wherein the pump shell is provided with a cavity which is divided into a filter cavity and an impeller cavity by a partition; the wall of the impeller cavity is provided with a circulation port communicated with the inner cavity of the roller of the clothes processing device and a water outlet communicated with the outside, and the circulation port and the water outlet are arranged at intervals;

2. The water pump of claim 1, wherein the relief groove is an arcuate groove extending circumferentially of the impeller cavity.

3. The water pump of claim 2, wherein the arc-shaped groove is located at a center of a circle that is coaxial with a center of the impeller cavity.

4. The water pump of claim 1, wherein the buffer grooves comprise at least two, and at least two buffer grooves are sequentially arranged in a radial direction of the impeller chamber.

5. The water pump according to any one of claims 1 to 4, wherein a width dimension of the relief groove in a radial direction of the impeller cavity is in a range of 1mm to 2 mm.

6. The water pump according to any one of claims 1 to 4, wherein a depth dimension of the buffer groove in an axial direction of the impeller cavity is not more than 3 mm.

7. The water pump according to any one of claims 1 to 4, wherein a water-stop boss is provided on a wall of the impeller cavity, the water-stop boss is located between the water discharge port and the circulation port, and the buffer groove is provided on the water-stop boss.

8. The water pump of claim 7, wherein the water-stop boss comprises a first water-stop portion and a second water-stop portion arranged in sequence in a direction from the center of the impeller cavity to the cavity wall of the impeller cavity, and the buffer groove is formed in the first water-stop portion;

9. The water pump of claim 8, wherein the first water insulation portion is disposed parallel to an impeller within the impeller cavity.

10. The water pump of claim 9, wherein a gap between the first water cut-off and the impeller ranges from 3mm to 5 mm.

11. The water pump according to claim 8, wherein at least one side surface of the second water blocking part adjacent to the water discharge opening and/or at least one side surface of the second water blocking part adjacent to the circulation opening is formed as a water blocking surface.

12. The water pump according to claim 11, wherein the water retaining surface on a side close to the drain opening is a curved surface that is convex toward the drain opening; and/or the water retaining surface close to one side of the circulation port is a cambered surface protruding towards the circulation port.

13. The water pump according to claim 7, wherein a flow guide notch is formed in a position, close to the circulation port, of the water stop boss;

the width of the diversion gap is gradually reduced along the direction from the water inlet of the diversion gap to the bottom of the diversion gap.

14. A laundry treating apparatus, comprising a casing, a drum provided in the casing, and the water pump according to any one of claims 1 to 13 provided between the casing and the drum.