CN114657751B - Water pump and clothes treatment device - Google Patents

Abstract

The embodiment of the invention provides a water pump and a clothes treatment device, the water pump comprises a pump shell, wherein the pump shell is provided with an impeller cavity, the cavity wall of the impeller cavity is provided with a circulation port communicated with the inner cavity of a roller of the clothes treatment device and a water outlet communicated with the outside, and the circulation port and the water outlet are arranged at intervals; be provided with the water proof spare on the chamber wall in impeller chamber, the water proof spare is located the circulation mouth with between the outlet, just the water proof spare be close to one side orientation of circulation mouth the circulation mouth extends and shelters from some circulation mouthful to can prevent to take place the cluster water phenomenon between circulation mouth and the outlet through the water proof spare separation to wash water, and can shelter from some circulation mouthful through setting up the water proof spare, prevent debris jam circulation mouth.

Description

Water pump and clothes treatment device

Technical Field

The embodiment of the invention relates to the technical field of household appliances, in particular to a water pump and a clothes treatment device.

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 achieved by changing the rotation direction of the impeller of the water pump such that the washing water is discharged from the water discharge port or such that the washing water is discharged from the circulation port.

However, when the draining operation is required, the washing water may enter the circulation port, or when the circulating water operation is required, the washing water may enter the drain port, thereby causing a water-crossing phenomenon at the drain port and the circulation port.

Disclosure of Invention

In order to solve the above technical problems or at least partially solve the above technical problems, embodiments of the present invention provide a water pump and a laundry treatment apparatus.

In a first aspect, an embodiment of the present invention provides a water pump, including a pump casing, the pump casing having an impeller cavity, a circulation port for communicating with a drum inner cavity of a laundry treatment apparatus and a drain port communicating with the outside being provided on a cavity wall of the impeller cavity, the circulation port being spaced apart from the drain port;

the impeller comprises an impeller cavity, wherein the impeller cavity is characterized in that a water-proof piece is arranged on the cavity wall of the impeller cavity and is positioned between the circulation port and the water outlet, and one side, close to the circulation port, of the water-proof piece extends towards the circulation port and shields part of the circulation port.

In the technical scheme, the water-proof piece is arranged on the cavity wall of the impeller cavity and is positioned between the circulating port and the water outlet, so that the phenomenon of water flowing between the circulating port and the water outlet is avoided. Namely, when the water draining operation is performed, the washing water flows through the water draining opening and is blocked by the water isolating piece, so that the phenomenon that the washing water continuously flows into the circulating opening to cause water flowing through the circulating opening is avoided; when the circulating water is operated, the washing water flows through the circulating port and is blocked by the water isolation piece, so that the phenomenon that the washing water continuously flows into the water outlet to cause water flowing out of the water outlet is avoided.

In addition, generally, the pipe diameter of the water outlet is larger than that of the circulating port, so that sundries can be discharged through the water outlet, and the circulating port can be blocked by sundries, so that the circulating port can be prevented from being blocked by sundries by shielding part of the circulating port by the water separator. Optionally, the water-proof piece comprises a water-proof boss arranged on the cavity wall of the impeller cavity;

at least one side surface of the water-proof boss close to the water outlet and/or at least one side surface close to the circulating port is formed as a water-proof surface.

In the technical scheme, the water-proof piece is the water-proof boss, so that when the water draining operation is carried out, washing water flows through the water draining port and is blocked on the water-proof surface formed on the side surface of the water-proof boss, which is close to the water draining port, so that the phenomenon that the washing water continuously flows into the circulating port to cause water stringing is avoided; or when the circulating water is operated, the washing water is blocked on the water blocking surface formed on the side surface of the water blocking boss, which is close to the circulating port, after flowing through the circulating port, so that the phenomenon that the washing water continuously flows into the water outlet to cause water stringing is avoided.

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

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

Optionally, one side of the water-proof boss facing the impeller in the impeller cavity is adapted to the outer contour shape of the impeller.

In this technical scheme, through setting up the shape looks adaptation of the one side in orientation impeller chamber of water proof boss and impeller, can make the impeller in the impeller chamber and water proof boss's arrangement more pleasing to the eye reasonable under the prerequisite that does not influence impeller rotation.

Optionally, the water blocking boss is uniform in size in a radial direction of the impeller chamber in a direction along the drain port to the circulation port.

In this technical scheme, through setting up along the orientation of outlet to circulation mouth, the water proof boss is unanimous in the radial direction's of impeller chamber size, can make the preparation of water proof boss simple and easy convenient, and can ensure that the circulation mouth can not take place to cross water when the drainage operation, the outlet can not take place to cross water when the circulation water operation.

Optionally, the preset distance between the water-proof boss and the outer edge of the impeller in the impeller cavity is 3mm-5mm.

In this technical scheme, through reasonable preset distance between setting up water proof boss and the outer fringe of impeller to both can avoid presetting the too big flow and the lift difference that lead to the water pump of distance range and be too little, can avoid presetting the too little clearance that leads to debris to pile up in the two and cause the interference to the rotation of impeller of distance range simultaneously.

Optionally, the water pump further comprises a water isolation step, wherein the water isolation step is located between the circulation port and the water outlet, and the water isolation step is located on one side, close to the center of the impeller cavity, of the water isolation boss.

In this technical scheme, through setting up water proof step and water proof boss, and water proof step and water proof boss set gradually along the radial of impeller chamber to can block washing water through water proof step and water proof boss jointly, in order to further ensure that circulation mouth and outlet can not take place the cluster water.

Optionally, the height of the water-blocking step is smaller than the height of the water-blocking boss in the axial direction along the impeller cavity.

In the technical scheme, the height of the water isolation step along the axial direction of the impeller cavity is smaller than that of the water isolation boss along the axial direction of the impeller cavity, so that the water isolation step and the water isolation boss can be suitable for blocking washing water with different water levels in the impeller cavity, and water flowing through the circulation port and the water outlet is prevented.

Optionally, a diversion gap is arranged at a position of the water isolation piece, which is close to the circulating port;

the width of the diversion gap gradually decreases 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 gradually along the direction of water inlet to bottom to can make the water conservancy diversion breach play the effect of water conservancy diversion to the washing water, with this water phenomenon that takes place between preventing circulation mouth and the outlet.

Optionally, in a circumferential direction of the impeller chamber, a gap is provided between a side of the water blocking member adjacent to the water discharge port and the water discharge port.

In this technical scheme, through setting up the clearance that has between the side that is close to the outlet of water proof spare and the outlet, also can avoid when the drainage operation, debris pile up on the side that is close to the outlet of water proof spare or water proof spare and impeller between.

Optionally, the water barrier is integrally formed with the pump housing.

In the technical scheme, the water-proof piece and the pump shell are integrally formed, so that the process is saved, and the strength of the pump shell can be improved.

In a second aspect, an embodiment of the present invention provides a laundry treating apparatus including a housing, a drum provided in the housing, and a water pump provided between the housing and the drum.

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 invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIGS. 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 a water pump according to an embodiment of the present invention;

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

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 of fig. 5 at B-B.

Wherein, 1, a pump shell; 11. an impeller cavity; 111. a water outlet; 112. a circulation port; 113. a water barrier; 114. a water blocking surface; 115. a water-proof step; 116. a diversion notch; 12. a filter chamber; 121. a filtering port; 2. an impeller; 3. and a limit clamping hook.

Detailed Description

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

In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention, but embodiments of the invention may be practiced otherwise than as described herein; it should be apparent that the embodiments in the specification are only some, but not all, of the embodiments of the invention.

In general, a laundry treating 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 transferred into an impeller chamber of the water pump, the water pump may be used to discharge water in the impeller chamber to an outside of the washing machine through a water discharge port on the water pump to achieve a water discharge operation, or to discharge water in the impeller chamber to a drum inner chamber through a circulation port on the water pump to achieve a circulating water operation. That is, the water pump used in the current washing machine may be a circulation-drainage integrated water pump.

Specifically, the circulating drainage integrated water pump used in the current washing machine 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 draining operation is needed, 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 draining port; when the circulating water operation is needed, the motor can drive the impeller to rotate anticlockwise, so that the water conveyed into the impeller cavity is driven to be discharged through the circulating port and flows back into the inner cavity of the roller. That is, the flow direction of the water flow is made different by driving the impeller to rotate forward and backward by the motor, thereby realizing the circulating water operation or the draining operation.

However, in the related art, since one water pump is used for the circulating water operation or the draining operation, the lift difference or the liquid level difference of the water is insufficient, and thus the situation that the water outlet and the circulating port work simultaneously, that is, the water is drained from the circulating port during the draining operation or the water is drained from the water outlet during the circulating water operation, is easy to occur, and the water outlet and the circulating port are caused to cross water.

Example 1

In order to effectively solve the problem of water flowing through 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 motor and an impeller 2, and can specifically realize water draining operation when the impeller 2 is driven by the motor to rotate clockwise and realize circulating water operation when the impeller 2 rotates anticlockwise, or can also set the motor to drive the impeller 2 to rotate anticlockwise and realize water draining operation when the impeller 2 rotates clockwise, and the centrifugal pump is specifically determined according to the internal structure of the clothes treatment device.

In this embodiment, the impeller 2 is set to perform the water discharge operation when rotated clockwise and the circulating water operation when rotated counterclockwise, and hereinafter, the impeller 2 is rotated clockwise to perform the water discharge operation, and the circulating water operation is performed by rotating the impeller 2 counterclockwise as described in detail.

Specifically, the water pump of the present embodiment includes a pump housing 1. The pump housing 1 may be made of a plastic material. An impeller cavity 11 for placing the impeller 2 and a filter cavity 12 for water inflow are arranged in the pump shell 1, the filter cavity 12 is communicated with the impeller cavity 11, and the filter cavity 12 is used for conveying washing water in a roller inner cavity of the clothes treatment device into the impeller cavity 11. In particular, the interior of the pump casing 1 has a partition therein for dividing the interior of the pump casing 1 into an impeller chamber 11 and a filter chamber 12. The partition may in particular be integrally formed with the pump housing 1 or be connected to the pump housing 1 by welding or adhesive bonding.

Specifically, the filter chamber 12 has a filter port 121 formed in a wall thereof and communicating with the drum interior, the impeller chamber 11 has a circulation port 112 formed in a wall thereof and communicating with the drum interior, and a drain port 111 formed in a wall thereof and communicating with the outside, and the circulation port 112 is spaced from the drain port 111, whereby water circulation can be achieved by draining washing water introduced into the impeller chamber 11 from the circulation port 112 into the drum interior or draining water from the drain port 111 to the outside of the laundry machine.

The impeller chamber 11 is provided with a water blocking member 113 on a chamber wall thereof, the water blocking member 113 being located between the circulation port 112 and the water discharge port 111, and a side of the water blocking member 113 adjacent to the circulation port 112 extending toward the circulation port 112 and blocking a part of the circulation port 112. Generally, the pipe diameter of the water outlet 111 is larger than that of the circulation port 112, so that impurities can be discharged through the water outlet 111, and the circulation port 112 may be blocked by impurities, so that the circulation port 112 may be blocked by shielding part of the circulation port 112 by providing the water separator 113, so as to avoid the impurities from blocking the circulation port 112.

In particular, one end of the impeller 2 in the impeller chamber 11 is adapted to be in driving connection with a motor. The impeller 2 is connected to a rotation shaft of a motor, receives a rotation force by the motor to rotate in the impeller chamber 11 so that the washing water in the impeller chamber 11 flows to be discharged from the water discharge port 111 or discharged from the circulation port 112. Specifically, the motor may be a brushless motor.

In some embodiments, as shown with reference to fig. 2, a deflector notch 116 may be provided at a position of the water barrier 113 adjacent to the circulation port 112, so that water flow may be guided to be discharged toward the circulation port 112.

In the direction from the water inlet of the diversion gap 116 to the bottom of the diversion gap 116 (refer to the direction t shown in fig. 2), the width of the diversion gap 116 (refer to the dimension d in fig. 2) is gradually reduced, which is set to cover part of the circulation port 112 due to the position of the water-blocking member 113 close to the circulation port 112, so that the water discharge at the circulation port 112 may be affected to a certain extent, so that the gradual reduction of the width of the diversion gap 116 can play a role in diversion of the washing water, and further, the washing water is rapidly guided to be discharged to the circulation port 112, and further, the problem of insufficient water discharge caused by the shielding of part of the circulation port 112 by the water-blocking member 113 is overcome.

The specific principle of preventing water from being mixed is as follows: when the water draining operation is performed, the washing water flows through the water draining outlet 111 and is blocked by the water isolating piece 113 to form vortex, so that the phenomenon that the washing water continuously flows into the circulating outlet 112 to cause water stringing is avoided; when the circulation water is operated, the washing water is blocked by the water blocking member 113 after passing through the circulation port 112 to form a vortex, thereby preventing the washing water from continuously flowing into the water discharge port 111 to cause water crosstalk.

In this embodiment, the specific working process of the water pump is as follows: when the water draining operation is performed, the motor is started and drives the impeller 2 to rotate clockwise, and when the impeller 2 rotates, the washing water in the stirring impeller cavity 11 also flows clockwise, part of the washing water flows to the water outlet 111 and flows out of the clothes treating device through the water outlet 111, part of the washing water flows through the water outlet 111 and then impacts on the water separator 113 to form a vortex and then flows out through the water outlet 111, so that the water draining operation is realized and the phenomenon that water is mixed at the circulating port 112 can be avoided. When the circulating water is operated, the motor is started and drives the impeller 2 to rotate anticlockwise, the washing water in the stirring impeller cavity 11 also flows anticlockwise when the impeller 2 rotates, part of the washing water flows to the circulating port 112 and flows out from the circulating port 112 and then flows back to the inner cavity of the roller to realize cyclic utilization, and part of the washing water is impacted on the water-proof member 113 to form a vortex after passing through the circulating port 112 and then flows into the inner cavity of the roller through the circulating port 112, so that the circulating water operation is realized and the water flowing at the water outlet 111 can be avoided.

Referring to fig. 1 to 6, a water blocking member 113 is provided on the wall of the impeller chamber 11, and the water blocking member 113 is located between the circulation port 112 and the water discharge port 111. In the circumferential direction of the impeller chamber 11, a gap is provided between the drain port 111 and a side of the water blocking member 113 close to the drain port 111. By providing the spacer 113 with a gap between the side close to the drain port 111 and the drain port 111, accumulation of foreign matter on the side close to the circulation port 112 of the spacer 113 or the side close to the drain port 111 of the spacer 113 or between the spacer 113 and the impeller 2 can be avoided.

For example, in the case that the washing water flows clockwise by the impeller 2 during the draining operation, since the left end of the spacer 113 does not extend to the drain port 111, that is, there is a space for avoiding between the spacer 113 and the drain port 111, impurities can be discharged from the drain port 111 or continue to flow in the impeller chamber 11 without being caught on the side of the spacer 113 adjacent to the drain port 111 or between the spacer 113 and the impeller 2.

In addition, when the water discharging operation is performed, the impeller 2 rotates clockwise, so that the washing water is driven to flow towards the water-blocking member 113 continuously when flowing through the water outlet 111 clockwise, and forms turbulence or vortex after impacting on the left end face of the water-blocking member 113, so that the washing water is discharged from the water outlet 111 after forming vortex at the water outlet 111, thereby improving the flow rate of the washing water discharged through the water outlet 111, and realizing adjustable flow rate.

Referring to fig. 4, in the present embodiment, the range of the gap between the side of the water barrier 113 near the drain port 111 and the drain port 111 may be not more than 4mm in the circumferential direction of the impeller chamber 11. That is, referring to the drawing direction shown in fig. 4, a gap is provided between the left end surface of the spacer 113 and the drain port 111. Illustratively, the gap between the side of the water barrier 113 adjacent to the drain port 111 and the drain port 111 may be 1mm or 2mm or 3mm.

In summary, the water pump of the present embodiment is configured such that a gap is provided between the side of the water barrier 113 adjacent to the drain port 111 and the drain port 111, so that the washing water can impinge on the side of the water barrier 113 adjacent to the drain port 111 to form turbulence when the water is drained, thereby adjusting the flow rate of the water discharged through the drain port 111.

In particular, the water pump's water discharge port 111 and circulation port 112 are formed on the outer circumferential surface of the pump casing 1, and the water discharge port 111 communicates with the inside of the impeller chamber 11, and the water discharge port 111 may be provided to protrude outward from the outer circumferential surface of the pump casing 1. When the laundry treating device performs a draining process, the drain port 111 serves as a passage along which wash water within the impeller chamber 11 flows to the outside by the impeller 2 rotating clockwise.

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

The water discharge 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, and in other embodiments, the drain port 111 may be provided in plurality, the circulation port 112 may be provided in plurality, the inner diameters of the plurality of drain ports 111 may be uniform or different, and the inner diameters of the plurality of circulation ports 112 may be uniform or different, specifically, the amount of wash water to be drained or circulated.

In particular, the pump casing 1 may be made of plastic, the water-blocking member 113 may be made of plastic, and the water-blocking member 113 and the pump casing 1 may be integrally injection-molded of plastic, so that not only the manufacturing process may be simplified, but also the overall strength of the pump casing 1 may be enhanced. Of course, in other embodiments, the water barrier 113 and the pump casing 1 may be formed separately and then connected together by adhesion or fastening.

In addition, in this embodiment, referring to fig. 1, the central axis of the water outlet 111 and the central axis of the circulation port 112 may be set to form an included angle, for example, referring to fig. 1, in the water pump of this embodiment, the central axis of the water outlet 111 and the central axis of the circulation port 112 form an acute angle, for example, the included angle between them may be 45 ° or 60 °. Of course, the water discharge port 111 and the circulation port 112 may be disposed in parallel, and may be specifically determined according to the structure and installation space of the inside of the laundry treating apparatus.

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 drain efficiency and the circulation water efficiency may be substantially the same; alternatively, the aperture of the drain port 111 may be larger than that of the circulation port 112, so that the drain efficiency is larger 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 greater than the drainage efficiency.

In addition, referring to fig. 1, in the present embodiment, the apertures of the filtering ports 121 are larger than those of the water outlet 111 and the circulating port 112, water in the inner cavity of the drum enters the filtering chamber 12 through the filtering ports 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 outlet 111 to realize a water discharge operation or discharged from the circulating port 112 to realize a circulating water operation.

Specifically, the filtering port 121 and the inner cavity of the drum may be communicated through a water inlet pipe, the water outlet 111 and the outside may be communicated through a water outlet pipe, and the circulation port 112 and the inner cavity of the drum may be communicated 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. 4, the specific shape and structure of the water barrier 113 may be: the water blocking member 113 is a water blocking boss having a certain extension length in the circumferential direction of the impeller chamber 11. The water-proof boss can be a solid boss, so that the processing and the manufacturing are easy; or, the water-proof boss can also be a hollow structure, so that the weight of the water pump with the water-proof boss can be effectively reduced, and the light-weight design is realized.

That is, the water blocking member 113 is a boss structure having a certain thickness in the axial direction of the impeller chamber 11 (refer to the x direction shown in fig. 6), such as a water blocking boss having an arc shape parallel to the circumferentially extending track of the impeller chamber 11, or a square water blocking boss. In this embodiment, in order to save the installation space in the impeller cavity 11 and make the arrangement of the water-proof boss in the impeller cavity 11 more reasonable and beautiful, the water-proof boss has an arc structure concentric with the center of the impeller cavity 11.

In particular, in the drawing direction shown in fig. 4, the water blocking surface 114 may be provided only on the right side surface of the water blocking boss, that is, along the direction from the outer edge to the center of the impeller chamber 11 (refer to the r direction 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 that the washing water may be blocked and guided. For example, when the circulation water is operated, the washing water is blocked on the water blocking surface 114 formed at the side surface of the water blocking boss near the circulation port 112 after passing through the circulation port 112, thereby preventing the washing water from continuously flowing into the water discharge port 111 to cause the water to flow in.

Alternatively, the water blocking surface 114 may be provided only on the left side surface of the water blocking boss, that is, along the direction from the outer edge to the center of the impeller chamber 11 (see r direction shown in fig. 4), and the water blocking surface 114 may be an inclined surface inclined toward the water discharge port 111 or an arc surface curved toward the water discharge port 111, so that the washing water may be blocked and guided. For example, when the draining operation is performed, the washing water flows through the drain port 111 and is blocked on the water blocking surface 114 formed on the side surface of the water blocking boss near the drain port 111, thereby preventing the washing water from continuously flowing into the circulation port 112 to cause water crosstalk.

Alternatively, the water blocking surface 114 may be provided on both left and right side surfaces of the water blocking boss. When the circulating water operation is performed, the washing water is blocked on the water blocking surface 114 formed on the side surface of the water blocking boss, which is close to the circulating port 112, after flowing through the circulating port 112, so that the washing water is prevented from continuously flowing into the water outlet 111 to cause water stringing; when the water draining operation is performed, the washing water flows through the water draining port 111 and is blocked on the water blocking surface 114 formed on the side surface of the water blocking boss, which is close to the water draining port 111, so that the washing water is prevented from continuously flowing into the circulating port 112 to cause water flowing.

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 water blocking boss close to the water discharge port 111, the water blocking surface 114 on the side close to the water discharge port 111 is a cambered surface protruding toward the water discharge port 111. The water blocking 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 blocking surface 114 close to one side of the water outlet 111 can form the water blocking surface 114 for effectively guiding water, so that the washing water can be guided towards the water outlet 111 while the washing water is blocked by the water blocking surface 114, the washing water is discharged from the water outlet 111, and water flowing through the circulating port 112 is avoided.

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

Alternatively, the water blocking surface 114 on the side close to the drain port 111 is an arc surface protruding toward the drain port 111 and the water blocking surface 114 on the side close to the circulation port 112 is an arc surface protruding toward the circulation port 112. When the water draining operation is needed, the water blocking surface 114 close to one side of the water draining port 111 can form the water blocking surface 114 for effectively guiding water, so that the washing water can be guided towards the water draining port 111 while the washing water is blocked by the water blocking surface 114, and the washing water is drained from the water draining port 111, so that the water flowing through the circulating port 112 is avoided. When the circulating water is required to be operated, the water blocking surface 114 close to one side of the circulating port 112 can form the water blocking surface 114 for effectively guiding water, so that the washing water can be guided towards the circulating port 112 while the washing water is blocked by the water blocking surface 114, and the washing water is discharged from the circulating port 112, so that the water flowing in the water outlet 111 is avoided.

Alternatively, in other implementations, the water blocking surface 114 may be a beveled structure. And the surface of the inclined plane structure can be a smooth surface or be provided with grains. Specifically, the water blocking surface 114 may be cut by a cutting tool or polished by a polishing device.

Referring to fig. 6, one side of the water-proof boss facing the impeller 2 in the impeller cavity 11 is matched with the shape of the impeller 2, namely, referring to the drawing direction shown in fig. 6, the lower surface of the water-proof boss is matched with the upper surface of the impeller cavity 11, and the arrangement of the impeller 2 and the water-proof boss in the impeller cavity 11 can be more attractive and reasonable on the premise that the rotation of the impeller 2 is not affected.

Alternatively, the preset distance a between the water-blocking boss and the outer edge of the impeller 2 may be 3mm, or 4mm or 5mm. Specifically, the preset distance a between the water-blocking boss and the outer edge of the impeller 2 may be set according to actual needs, which is not specifically limited in this embodiment.

In sum, through reasonable setting of predetermine distance a between the outer fringe of water proof boss and impeller 2 to both can avoid predetermining the too big flow and the lift difference that lead to the water pump of scope of distance a, can avoid predetermining the too little scope of distance a simultaneously and lead to debris to pile up and cause the interference to the rotation of impeller 2.

In addition, the dimension of the water blocking boss in the radial direction (r direction shown in fig. 4) of the impeller chamber 11 is uniform in the direction from the water discharge port 111 to the circulation port 112, so that the water blocking boss can be easily and conveniently manufactured, the water discharge port 111 can be prevented from being subjected to water-crossing during the water discharge operation, and the circulation port 112 can be prevented from being subjected to water-crossing during the water circulation operation.

Of course, in other implementations, the dimension of the water blocking boss in the radial direction of the impeller chamber 11 (refer to the r direction shown in fig. 4) may be gradually increased in the direction from the drain port 111 to the circulation port 112, or the dimension of the water blocking boss in the radial direction of the impeller chamber 11 (refer to the r direction shown in fig. 4) may be gradually decreased in the direction from the drain port 111 to the circulation port 112.

Referring to fig. 6, in addition to providing a water blocking boss in the impeller chamber 11, a water blocking step 115 connected to the water blocking boss may be provided in the impeller chamber 11, the water blocking step 115 being located between the circulation port 112 and the water discharge port 111, and the water blocking step 115 and the water blocking boss being sequentially provided and connected to each other in a direction along a center to an outer edge of the impeller chamber 11, so that washing water may be blocked by the water blocking step 115 and the water blocking boss together to further ensure that water does not flow through the circulation port 112 and the water discharge port 111. In particular, the water barrier step 115 is located at the inner edge of the water barrier boss.

In addition, the extension length of the water-blocking step 115 may coincide with the extension length of the water-blocking boss in the circumferential direction of the impeller chamber 11, or the extension length of the water-blocking step 115 may be greater than the extension length of the water-blocking boss, or the extension length of the water-blocking step 115 may be less than the extension length of the water-blocking boss.

Illustratively, the set distance n between the water blocking step 115 and the outer edge of the impeller 2 may be 3mm, or 4mm or 5mm. By reasonably setting the set distance n between the water isolation step 115 and the outer edge of the impeller 2, the problem that the flow and the lift of the water pump are too small due to the too large range of the set distance n can be avoided, and meanwhile, the problem that sundries are accumulated and interference is caused to the rotation of the impeller 2 due to the too small range of the set distance n can be avoided.

Further, in the axial direction of the impeller chamber 11 (refer to the x-direction shown in fig. 6), the height of the water blocking step 115 is smaller than the height of the water blocking boss.

That is, the left end faces of the water blocking step 115 and the water blocking boss may be disposed flush, and the right end of the water blocking boss protrudes from the right end of the water blocking step 115, so that the water blocking step 115 and the water blocking boss may be adapted to the blocking of the washing water of different water levels in the impeller chamber 11, thereby preventing the circulation port 112 and the water discharge port 111 from being water-crossed. That is, when the water level delivered into the impeller chamber 11 is high, water can be simultaneously blocked by the water blocking step 115 and the water blocking boss together, so that water can be prevented from flowing between the water outlet 111 and the circulation port 112; when the water level delivered into the impeller chamber 11 is low, water is blocked mainly by the water blocking step 115 at this time, and water is prevented from flowing between the water discharge port 111 and the circulation port 112.

In particular manufacturing, the water-blocking step 115 and the water-blocking boss may be integrally injection molded using plastic, so as to save process steps and enhance the overall strength of the pump casing 1.

In addition, referring to fig. 1, a limit hook 3 may be further disposed on an outer wall of the pump casing 1, so as to fix a wire connected with a motor of the water pump, so that the wire is distributed according to a path defined by the limit hook 3, and routing of the wire is more regular.

Further, the limit catch 3 may be provided on the pump housing 1 at a position away from the drain port 111 and the circulation port 112 to avoid interference of the wire with the drain pipe communicating with the drain port 111 or with the circulation pipe communicating with the circulation port 112. In particular, two or more limit hooks 3 may be provided, and a routing path of the wire extending according to the preset path is defined between the limit hooks 3.

In particular, the limit hook 3 can be integrally formed on the pump shell 1, thereby simplifying the manufacturing process; alternatively, the limit hook 3 may be fastened to the outer wall of the pump casing 1 by means of a fastening or bonding.

Example two

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

Wherein the housing is formed as an external appearance of the laundry treating apparatus. And the housing has an inlet (not shown) for the washing water. The shell is provided with a clothes putting opening or a clothes taking opening at a position corresponding to the roller. The laundry putting opening or the laundry taking opening may be provided at one side of the casing or at the top of the casing.

The laundry treating apparatus of the present embodiment may be a washing machine, and the water pump thereof may be a circulating water-draining integrated water pump, so that circulating water operation and draining operation may be realized.

In particular, the water pump of the laundry treating apparatus includes a pump housing 1. The pump housing 1 may in particular comprise an impeller chamber 11 for receiving the impeller 2 and a filter chamber 12 for inlet water. The filter chamber 12 has a filter port 121 formed in a wall thereof and communicating with a drum inner chamber of the laundry machine, the impeller chamber 11 has a circulation port 112 formed in a wall thereof and communicating with the drum inner chamber of the laundry machine, and a drain port 111 formed in a wall thereof and communicating with the outside, and the circulation port 112 is spaced from the drain port 111, whereby water circulation can be achieved by draining washing water introduced into the impeller chamber 11 from the circulation port 112 or draining water from the drain port 111.

In summary, in the laundry device according to the present embodiment, since the rotation direction of the motor may be changed, so that the rotation direction of the impeller 2 may be driven to change, the water pump of the laundry device according to the present embodiment may perform the function of the water discharge pump and may further perform the function of the circulation pump, that is, the water discharge operation and the circulation water operation may be implemented by one water pump, so that the structure of the laundry device is greatly simplified, the volume of the laundry device may be reduced, the space may be saved, and the cost of the laundry device may be reduced.

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

In particular, the water pump is located in the housing and between the housing and the drum, more particularly, the water pump is located at the bottom of the drum, and once the washing water in the inner cavity of the drum flows into the impeller cavity 11 of the water pump, the water pump can perform a circulating water process or a draining process.

The connection mode of the water pump and the shell is as follows: the pump shell 1 is provided with a first connecting part, the shell is provided with a second connecting part, and the water pump is fixed on the inner wall of the shell through the cooperation of the first connecting part and the second connecting part. The first connecting part can be a clamping protrusion, the second connecting part is not matched with the clamping protrusion in a clamping way, and the water pump is fixed on the inner wall of the shell through the clamping matching of the clamping protrusion and the clamping groove; or, the first connecting part and the second connecting part are threaded holes, and the fastener penetrates through the threaded holes so as to fix the water pump on the inner wall of the shell.

In addition, the casing of the clothes treating apparatus may be made of plastic material or light alloy material. In addition, the housing of the laundry treating apparatus may have a square shape or a circular shape.

Other technical features of the laundry treating apparatus of the present embodiment may be described with reference to the first embodiment, and will not be described herein.

It should be noted that in this document, relational terms such as "first" and "second" and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific implementation of an embodiment of the invention, so that those skilled in the art may understand or implement the embodiment of the 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 is to be accorded the widest scope consistent with the principles and novel features of the embodiments disclosed herein.

Claims (10)

1. The water pump is characterized by comprising a pump shell, wherein the pump shell is provided with an impeller cavity, a circulating port communicated with the inner cavity of a roller of the clothes treatment device and a water outlet communicated with the outside are arranged on the cavity wall of the impeller cavity, and the circulating port and the water outlet are arranged at intervals;

a water-proof piece is arranged on the cavity wall of the impeller cavity, the water-proof piece is positioned between the circulating port and the water outlet, and one side, close to the circulating port, of the water-proof piece extends towards the circulating port and shields part of the circulating port;

the water-proof piece comprises a water-proof boss arranged on the cavity wall of the impeller cavity; one side surface of the water-proof boss, which is at least close to the water outlet, and/or one side surface of the water-proof boss, which is at least close to the circulating port, are formed into a water-proof surface;

the water blocking surface close to one side of the water outlet is a cambered surface protruding towards the water outlet; and/or the water blocking surface close to one side of the circulating port is a cambered surface protruding towards the circulating port.

2. The water pump of claim 1, wherein a side of the water-blocking boss facing the impeller within the impeller cavity is adapted to an outer contour shape of the impeller.

3. The water pump of claim 1, wherein the water-blocking boss is uniform in size in a radial direction of the impeller chamber in a direction along the drain port to the circulation port.

4. The water pump of claim 1, wherein the predetermined distance between the water-blocking boss and the outer edge of the impeller within the impeller cavity is in the range of 3mm-5mm.

5. The water pump of any one of claims 1 to 4, further comprising a water isolation step located between the circulation port and the drain port, and located on a side of the water isolation boss near a center of the impeller cavity.

6. The water pump of claim 5, wherein the height of the water-blocking step is less than the height of the water-blocking boss in an axial direction along the impeller cavity.

7. The water pump according to any one of claims 1 to 4, wherein the water barrier is provided with a diversion gap at a position close to the circulation port;

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

8. The water pump according to any one of claims 1 to 4, wherein a gap is provided between a side of the water separator adjacent to the water discharge port and the water discharge port in a circumferential direction of the impeller chamber.

9. The water pump of any one of claims 1 to 4, wherein the water barrier is integrally formed with the pump housing.

10. A laundry treatment apparatus comprising a housing, a drum disposed within the housing, and a water pump according to any one of claims 1 to 9 disposed between the housing and the drum.