WO2023184651A1

WO2023184651A1 - Water pump and clothes treatment device

Info

Publication number: WO2023184651A1
Application number: PCT/CN2022/092036
Authority: WO
Inventors: 朱磊; 周椿浩; 汪坤; 黄栋
Original assignee: 无锡小天鹅电器有限公司
Priority date: 2022-03-31
Filing date: 2022-05-10
Publication date: 2023-10-05

Abstract

The present disclosure relates to a water pump and a clothes treatment device. The water pump comprises a pump housing, which has an impeller cavity, wherein a cavity wall of the impeller cavity is provided with a circulation port configured to be in communication with an inner cavity of a drum of the clothes treatment device, and a drainage port configured to be in communication with the outside, the circulation port and the drainage port being spaced apart; a water separator is arranged on the cavity wall of the impeller cavity, and is located between the circulation port and the drainage port, and the side of the water separator that is close to the circulation port extends towards the circulation port and shields part of the circulation port, so that washing water can be blocked by means of the water separator, thereby preventing a water mixing phenomenon from occurring between the circulation port and the drainage port; and part of the circulation port can be shielded by the water separator, so that debris is prevented from blocking the circulation port.

Description

Water pumps and laundry treatment devices

This disclosure requires a Chinese patent application submitted to the China Patent Office on March 31, 2022, with the application number 202210346460.4, and the invention name is "Water Pump and Clothes Treatment Device". It was submitted to the China Patent Office on March 31, 2022, with the application number 202210346455.3. , the priority of the Chinese patent application with the invention name "Water Pump and Clothes Treatment Device" and the Chinese patent application submitted to the China Patent Office on March 31, 2022 with the application number 202220772609.0 and the invention name "Water Pump and Clothes Treatment Device", The entire contents of which are incorporated into this disclosure by reference.

Technical field

The present disclosure relates to the technical field of daily electrical appliances, and in particular, to a water pump and a clothes treatment device.

Background technique

In the related art, the clothes processing device may use a water pump to circulate the washing water or discharge the washing water. That is, by changing the rotation direction of the impeller of the water pump so that the wash water is discharged from the drain port to achieve drainage or the wash water is discharged from the circulation port to achieve water circulation.

However, when a drainage operation is required, the washing water may enter the circulation port, or when a water circulation operation is required, the washing water may enter the drainage port, resulting in water leakage between the drainage port and the circulation port.

Contents of the invention

The technical problem to be solved by this disclosure is to solve the existing problem of water leakage at the drainage outlet and the circulation outlet.

In order to solve the above technical problems, in a first aspect, an embodiment of the present disclosure provides a water pump, including a pump housing having an impeller cavity, and a cavity wall of the impeller cavity for communicating with the drum of the clothes treatment device. A circulation port connected to the cavity and a drainage port connected to the outside, the circulation port and the drainage port being spaced apart;

A water barrier is provided on the wall of the impeller chamber. The water barrier is located between the circulation port and the drainage port, and a side of the water barrier close to the circulation port faces the circulation port. The circulation opening extends and blocks part of the circulation opening.

The water pump and the clothes treatment device provided by the embodiment of the present disclosure include a pump casing, the pump casing has an impeller cavity, and the impeller cavity has a circulation port on the cavity wall for communicating with the drum inner cavity of the clothes treatment device and communicating with the outside. The drainage port, the circulation port and the drainage port are arranged at intervals; a water barrier is provided on the wall of the impeller cavity, the water barrier is located between the circulation port and the drainage port, and the side of the water barrier close to the circulation port faces the circulation port Extend and block part of the circulation port, so that the wash water can be blocked by the water barrier to prevent water from flowing between the circulation port and the drain port, and part of the circulation port can be blocked by setting the water barrier to prevent debris from clogging the circulation port. .

Optionally, the water-isolating member includes a water-isolating boss provided on the wall of the impeller chamber;

At least one side of the water-blocking boss close to the drainage port and/or at least one side close to the circulation port is formed as a water-blocking surface.

Optionally, the retaining surface on the side close to the drain outlet is an arc surface protruding toward the drain outlet;

And/or, the water retaining surface on the side close to the circulation port is an arc surface protruding toward the circulation port.

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

Optionally, in the direction from the drainage port to the circulation port, the water-isolating boss has the same size in the radial direction of the impeller cavity.

Optionally, the preset distance between the water-isolating boss and the outer edge of the impeller in the impeller cavity ranges from 3 mm to 5 mm.

Optionally, the water pump further includes a water-isolating step, the water-isolating step is located between the circulation port and the drain outlet, and the water-isolating step is located on the water-isolating boss near the impeller cavity. side of the center.

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

Optionally, the water isolating member is provided with a flow guide gap at a position close to the circulation port;

The width of the flow guide gap gradually decreases in the direction from the water inlet of the flow guide gap to the bottom of the flow guide gap.

Optionally, in the circumferential direction along the impeller cavity, there is a gap between the side of the water barrier close to the drain outlet and the drain outlet.

Optionally, the water isolating member and the pump housing are integrally formed.

Optionally, the present disclosure also provides a clothes treatment device, including a housing, a drum provided in the housing, and a water pump provided between the housing and the drum.

In a second aspect, embodiments of the present disclosure further provide a water pump, including a pump casing having a cavity, which is divided into a filter cavity and an impeller cavity through a partition; the impeller cavity has a cavity wall with A circulation port for communicating with the inner cavity of the drum of the laundry treatment device and a drainage port for communicating with the outside, the circulation port and the drainage port being spaced apart;

The side of the partition member close to the impeller cavity has a buffer groove. The buffer groove is located between the circulation port and the drainage port, and the buffer groove extends from the circulation port to the drainage port. extends in the direction of the mouth.

Further, the pump casing of the water pump has a cavity, and the cavity is divided into a filter cavity and an impeller cavity through a partition; the cavity wall of the impeller cavity has a circulation port for communicating with the inner cavity of the drum of the clothes treatment device and communicating with the outside. The drainage port, the circulation port and the drainage port are spaced apart; the side of the partition close to the impeller cavity has a buffer groove, and the buffer groove is located between the circulation port and the drainage port, and the buffer groove runs along the circulation port to the drainage port direction, so that the water in the impeller cavity forms a turbulent flow state when it flows through the buffer groove. That is, after the washing water forms a vortex, it can prevent the washing water from continuing to flow along the flow direction to a certain extent, thereby preventing the circulation port and the drain port from flowing. Water leakage occurs.

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

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

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

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

Optionally, the depth dimension of the buffer groove along the axial direction of the impeller cavity is no more than 3 mm.

Optionally, a water-proof boss is provided on the wall of the impeller chamber. The water-proof boss is located between the drainage port and the circulation port, and the buffer groove is provided on the water-proof boss. On stage.

Optionally, a water-proof step is provided on the wall of the impeller cavity, and the water-proof step and the water-proof boss are arranged in sequence along the center of the impeller cavity toward the cavity wall of the impeller cavity, so The buffer groove is provided on the water-proof step;

The height of the water-isolating step along the axial direction of the impeller cavity is smaller than the height of the water-isolating boss along the axial direction of the impeller cavity.

Optionally, the water-isolating step is arranged parallel to the impeller in the impeller cavity.

Optionally, the gap between the water-isolating step and the impeller ranges from 3mm to 5mm.

Optionally, at least one side of the water-proof boss close to the drainage port and/or at least one side close to the circulation port is formed as a water-proof surface.

Optionally, the retaining surface on the side close to the drainage outlet is an arc surface protruding toward the drainage outlet; and/or, the retaining surface on the side close to the circulation opening is an arc surface protruding toward the circulation opening. Protruding curved surface.

Optionally, the water-isolating boss is provided with a flow guide gap at a position close to the circulation port;

In a third aspect, the present disclosure also provides a water pump, including a pump casing. The pump casing has a cavity. The cavity is divided into an impeller cavity and a filter cavity through a partition. The impeller cavity has a cavity wall for a circulation port connected to the inner cavity of the drum of the clothes treatment device and a drainage port connected to the outside; the cavity wall of the filter chamber has a filter port connected to the inner cavity of the drum;

The partition is provided with a pressure relief hole, and the pressure relief hole is connected to the impeller chamber and the filter chamber respectively, so that the water in the impeller chamber can flow back to the filter through the pressure relief hole. inside the cavity.

Furthermore, the cavity of the pump casing of the water pump is divided into an impeller cavity and a filter cavity through a partition. The cavity wall of the impeller cavity has a circulation port for communicating with the inner cavity of the drum of the clothes treatment device and a drain port for communicating with the outside. , the cavity wall of the filter cavity has a filter port for communicating with the inner cavity of the drum; the partition is provided with a pressure relief hole, which is connected to the impeller cavity and the filter cavity respectively, so that the water in the impeller cavity can be drained through The pressure hole flows back into the filter cavity to avoid water leakage at the circulation port or drain port.

Optionally, the pressure relief hole is provided close to the circulation port.

Optionally, there are at least two pressure relief holes, and at least two pressure relief holes are arranged at intervals along the circumference of the impeller chamber.

Optionally, the central axis of the pressure relief hole is parallel to the central axis of the impeller chamber.

Optionally, the pressure relief hole has a diameter ranging from 1 mm to 5 mm.

Optionally, a water barrier is provided on the side of the partition close to the impeller cavity, and the water barrier is located between the circulation port and the drain outlet; the water barrier is connected to the drain port. A through hole connecting the pressure relief hole and the impeller cavity is provided at a position corresponding to the pressure hole.

Optionally, the water barrier is provided with a flow guide gap near the circulation port, the through hole is provided at the bottom of the flow guide gap, and the through hole is connected to the flow guide gap.

Optionally, the width of the flow guide gap gradually decreases in a direction from the water inlet of the flow guide gap to the bottom of the flow guide gap.

Optionally, the water isolating component and the partitioning component are integrally formed.

Description of drawings

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

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those of ordinary skill in the art, It is said that other drawings can be obtained based on these drawings without exerting creative labor.

Figures 1-2 are appearance views of the water pump according to the embodiment of the present invention at different viewing angles;

Figure 3 is a front view of the water pump according to the embodiment of the present utility model;

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

Figure 5 is a side view of the water pump according to the embodiment of the present utility model;

Figure 6 is a cross-sectional view at B-B in Figure 5;

Figure 7 is a cross-sectional view of the water pump according to the embodiment of the present utility model.

Among them, 1. Pump casing; 11. Impeller chamber; 111. Drainage outlet; 112. Circulation port; 113. Water-isolating parts; 114. Water-retaining surface; 115. Water-isolating steps; 1151. Buffer groove; 1152. Through hole; 116. Diversion gap; 12. Filter cavity; 121. Filter port; 122. Separator; 123. Through hole; 124. Pressure relief hole; 2. Impeller; 3. Limiting hook.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than All examples. Based on the embodiments in this disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative efforts fall within the scope of protection of this disclosure.

A clothes treatment device, such as a washing machine, includes a casing, a drum located in the casing, and a water pump located between the drum and the casing. The washing water in the drum is transported to the impeller cavity of the water pump. The water pump can be used to remove the water in the impeller cavity. Discharge it to the outside of the washing machine through the drain port on the water pump to achieve drainage operation, or discharge the water in the impeller cavity to the inner cavity of the drum through the circulation port on the water pump to achieve circulating water operation. In other words, the water pump used in current washing machines can be an integrated water pump for circulation and drainage.

Specifically, the current integrated water circulation and drainage pump used in washing machines includes a motor, a pump casing, and an impeller located in the impeller cavity of the pump casing. The motor can be a brushless DC motor, and the motor is drivingly connected to the impeller. The pump casing is provided with a drainage port connected to the outside and a circulation port connected to the inner cavity of the drum. For example, when drainage operation is required, the motor can drive the impeller to rotate clockwise, thereby driving the water transported into the impeller cavity to be discharged through the drainage outlet; when water circulation operation is required, the motor can drive the impeller to rotate counterclockwise, driving the The water delivered to the impeller cavity is discharged through the circulation port and returns to the inner cavity of the drum. That is, the motor drives the impeller to rotate forward and reverse to make the flow direction of the water flow different, thereby realizing circulating water operation or drainage operation.

However, in the related art, since a water pump is used for circulating water operation or drainage operation, the head difference or liquid level difference of the water is insufficient, and it is easy for the drainage port and the circulation port to work at the same time, that is, during the drainage operation, water flows from the circulation port. Water is discharged from the drain outlet or the water circulation outlet is discharged, causing water to flow between the drain outlet and the circulation outlet.

Embodiment 1

In order to effectively solve the problem of water flowing in the drainage port and the circulation port in the related art, with reference to Figures 1 to 7, this embodiment provides a water pump, which can be used in a washing machine and other clothes processing devices. Specifically, the water pump The water pump can be a centrifugal pump. The centrifugal pump includes a motor and an impeller 2. Specifically, the motor can drive the impeller 2 to rotate clockwise to achieve drainage operation, and when it rotates counterclockwise, it can achieve circulating water operation. Alternatively, the motor can also be set to drive the impeller 2 to rotate counterclockwise to achieve the drainage operation. , when the impeller 2 rotates clockwise, the circulating water operation is realized, which is determined according to the internal structure of the clothes treatment device.

In this embodiment, the impeller 2 is set to rotate clockwise to realize the drainage operation, and to rotate counterclockwise to realize the circulating water operation. In the following, it is assumed that the impeller 2 rotates clockwise to realize the drainage operation, and the impeller 2 rotates counterclockwise to realize the circulating water operation. describe.

Specifically, the water pump of this embodiment includes a pump housing 1 . The pump housing 1 can be made of plastic material. The pump casing 1 is provided with an impeller cavity 11 for placing the impeller 2 and a filter cavity 12 for water inlet. The filter cavity 12 is connected with the impeller cavity 11 . The filter cavity 12 is used to remove the wash water from the inner cavity of the drum of the clothes treatment device. transported to the impeller cavity 11. Specifically, the inner cavity of the pump housing 1 is provided with a partition 122 , and the partition 122 is used to divide the inner cavity of the pump housing 1 into an impeller chamber 11 and a filter chamber 12 . Specifically, the partition 122 can be integrally formed with the pump housing 1 or connected with the pump housing 1 by welding or adhesive bonding.

Specifically, the wall of the filter chamber 12 is provided with a filter port 121 that communicates with the inner cavity of the drum, and the wall of the impeller chamber 11 is provided with a circulation port 112 for communicating with the inner cavity of the drum and a drainage port 111 that communicates with the outside. , the circulation port 112 is spaced apart from the drain port 111, so that the washing water entering the impeller chamber 11 can be discharged from the circulation port 112 to the inner cavity of the drum to achieve water circulation or discharged from the drain port 111 to the outside of the clothes treatment device to achieve drainage.

A water barrier 113 is provided on the wall of the impeller chamber 11. The water barrier 113 is located between the circulation port 112 and the drainage port 111, and the side of the water barrier 113 close to the circulation port 112 extends toward the circulation port 112 and blocks part of it. Circulation port 112. Generally speaking, the pipe diameter of the drainage port 111 is larger than the pipe diameter of the circulation port 112, so debris can usually be discharged through the drainage port 111, while debris may block the circulation port 112 of the circulation port 112, so it can be discharged through The water barrier 113 is provided to block part of the circulation opening 112 to block debris, so as to prevent debris from clogging the circulation opening 112 .

In specific implementation, one end of the impeller 2 in the impeller cavity 11 is used for transmission connection with the motor. The impeller 2 is connected to the rotating shaft of the motor. The motor receives rotational force and rotates in the impeller cavity 11 so that the wash water in the impeller cavity 11 flows to be discharged from the drain port 111 or the circulation port 112 . Specifically, the motor can be a brushless motor.

In some embodiments, as shown in FIG. 5 , a flow guide gap 116 may be provided on the water barrier 113 close to the circulation port 112 , so that the water flow can be guided to the circulation port 112 . In the direction from the water inlet of the flow guide gap 116 to the bottom of the flow guide gap 116 (refer to the direction t shown in FIG. 5 ), the width of the flow guide gap 116 (refer to the dimension d in FIG. 5 ) gradually decreases. The purpose of setting is that since the position of the water isolating member 113 close to the circulation port 112 blocks part of the circulation port 112, it may have a certain impact on the drainage volume at the circulation port 112. Therefore, setting the width of the diversion gap 116 to gradually reduce can have a certain effect on the water drainage. The diversion effect of the wash water quickly guides the wash water to be discharged to the circulation port 112, thereby overcoming the problem of insufficient drainage caused by the water isolating member 113 blocking part of the circulation port 112.

The specific principle of preventing water cross-flow is: during the drainage operation, the wash water flows through the drain port 111 and is blocked by the water isolator 113 to form a vortex, thereby preventing the wash water from continuing to flow into the circulation port 112 and causing water cross-flow; during the water circulation operation, The wash water flows through the circulation port 112 and is blocked by the water isolating member 113 to form a vortex, thereby preventing the wash water from continuing to flow into the drain port 111 and causing water leakage.

The specific working process of the water pump is: when performing the drainage operation, the motor starts and drives the impeller 2 to rotate clockwise. When the impeller 2 rotates, the washing water in the impeller cavity 11 also flows clockwise, and part of the washing water flows to The drain outlet 111 flows out to the outside of the clothes processing device through the drain outlet 111, and part of the washing water flows through the drain outlet 111 and then impacts on the water isolating member 113 to form a vortex and then flows out through the drain outlet 111, thereby realizing the drainage operation and avoiding the circulation port. Water leakage occurred at 112 locations. When the water circulation operation is performed, the motor starts and drives the impeller 2 to rotate counterclockwise. When the impeller 2 rotates, the washing water in the impeller cavity 11 also flows counterclockwise. Part of the washing water flows to the circulation port 112 and is circulated. After flowing out of the outlet 112, it flows back into the inner cavity of the drum to achieve recycling, and part of the washing water flows through the circulation outlet 112 and then impacts on the water isolator 113 to form a vortex, and then flows through the circulation outlet 112 into the inner cavity of the drum to achieve circulating water operation and Water leakage at the drain outlet 111 can be avoided.

Referring to FIGS. 1 to 7 , a water barrier 113 is provided on the wall of the impeller chamber 11 , and the water barrier 113 is located between the circulation port 112 and the drain port 111 . In the circumferential direction along the impeller cavity 11 , there is a gap between the side of the water barrier 113 close to the drain outlet 111 and the drain outlet 111 . By arranging a gap between the side of the water isolating member 113 close to the drainage outlet 111 and the drain outlet 111 , it is also possible to prevent debris from being deposited on the side of the water isolating member 113 close to the circulation port 112 or on the side of the water isolating member 113 close to the drainage outlet. 111 or between the water barrier 113 and the impeller 2.

For example, during the drainage operation, when the wash water flows clockwise under the action of the impeller 2, the left end of the water barrier 113 does not extend to the drain outlet 111, so that the debris can be discharged from the drain outlet 111 or continue to flow in the impeller cavity 11 flow without getting stuck on the side of the water barrier 113 close to the drain outlet 111 or between the water barrier 113 and the impeller 2 .

When the drainage operation is performed, the impeller 2 rotates clockwise, driving the washing water to flow through the drain outlet 111 and continue to flow toward the water barrier 113 and impact on the left end surface of the water barrier 113 to form a turbulent flow, thereby causing the wash water to flow during drainage. A vortex is formed at the outlet 111 and then discharged from the drain outlet 111, thereby increasing the flow rate of the wash water discharged through the drain outlet 111 and achieving adjustable flow rate.

Referring to FIG. 4 , in this embodiment, along the circumferential direction of the impeller cavity 11 , the range of the gap between the side of the water barrier 113 close to the drain outlet 111 and the drain outlet 111 may be no more than 4 mm. That is, referring to the direction of the drawing shown in FIG. 4 , there is a gap between the left end surface of the water barrier 113 and the drain outlet 111 . For example, the gap between the side of the water barrier 113 close to the drain outlet 111 and the drain outlet 111 may be 1 mm, 2 mm, or 3 mm.

In summary, the water pump of this embodiment has a gap between the side of the water isolating member 113 close to the drain outlet 111 and the drain outlet 111, so that the wash water can impact on the water isolator 113 during the drainage operation. A turbulent flow is formed on the side close to the drain outlet 111, thereby regulating the flow rate of the water discharged through the drain outlet 111.

During specific implementation, the drain port 111 and the circulation port 112 of the water pump are formed on the outer circumferential surface of the pump housing 1 , and the drain port 111 is connected with the inside of the impeller cavity 11 , and the drain port 111 can be arranged from the outer circumferential surface of the pump housing 1 to Protruding outside. When the laundry treatment device performs a draining process, the drain port 111 is used as a channel, and the wash water in the impeller chamber 11 flows to the outside along the channel due to 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 peripheral surface of the pump casing 1 . When the laundry treatment device performs a water circulation operation, the circulation port 112 is used as a channel, and the wash water in the impeller cavity 11 flows along the channel into the drum inner cavity through 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, there can be one drainage port 111 and one circulation port 112 . In other embodiments, there can be multiple drainage ports 111 , and there can also be multiple circulation ports 112 . Multiple drainage ports 111 The inner diameters of the plurality of circulation ports 112 may be the same or different, and the inner diameters of the plurality of circulation ports 112 may also be the same or different, specifically set according to the amount of wash water to be discharged or circulated.

In specific implementation, the pump casing 1 can be made of plastic, and the water isolating part 113 can also be made of plastic. The water isolating part 113 and the pump casing 1 can be integrally injection molded of plastic, which can not only simplify the manufacturing process, but also strengthen the pump. Overall strength of shell 1. Of course, in other implementations, the water isolating member 113 and the pump housing 1 can also be formed separately and then connected together through bonding or fastener connection.

In addition, in this embodiment, as shown in FIG. 1 , the central axis of the drainage port 111 and the central axis of the circulation port 112 can be set to form a certain angle. For example, as shown in FIG. 1 , the water pump of this embodiment has a drainage port. The central axis of 111 forms an acute angle with the central axis of circulation port 112. For example, the angle between the two can be 45° or 60°. Of course, the drain port 111 and the circulation port 112 can also be arranged in parallel, which may be determined according to the internal structure and installation space of the clothes treatment device.

Furthermore, in this embodiment, the diameter of the drainage port 111 and the diameter of the circulation port 112 can be set to be consistent, so that the drainage efficiency and the circulating water efficiency can be approximately the same; or, the diameter of the drainage port 111 can also be set to be larger than the circulation port 112 The diameter of the drainage port 111 may be smaller than that of the circulation port 112 , so that the drainage efficiency is greater than the circulating water efficiency. Alternatively, the diameter of the drainage port 111 may be smaller than the diameter of the circulation port 112 , so that the circulating water efficiency is greater than the drainage efficiency.

In this embodiment, the diameter of the filter port 121 is larger than the diameter of the drain port 111 and the circulation port 112. The water in the drum inner cavity enters the filter chamber 12 through the filter port 121, and then enters the impeller chamber 11 connected with the filter chamber 12. , the water entering the impeller chamber 11 can be discharged through the drain port 111 to implement drainage operation or discharged from the circulation port 112 to implement circulating water operation.

Specifically, the filter port 121 can be connected to the inner cavity of the drum through a water inlet pipe, the drainage port 111 can be connected to the outside through a drainage pipe, and the circulation port 112 can be connected to the inner cavity of the drum through a circulation pipe. The water inlet pipe, drainage pipe and circulation pipe can all be soft pipes, such as plastic corrugated pipes or rubber pipes.

Referring to FIGS. 4 and 6 , the water isolation member 113 is a water isolation boss with a certain extension length in the circumferential direction of the impeller cavity 11 . The water-proof boss can be a solid boss, which is easy to process and manufacture; or the water-proof boss can also be a hollow structure, which can effectively reduce the weight of the water pump with the water-proof boss and achieve lightweight design.

That is, the water-isolating member 113 is a boss structure with a certain thickness in the axial direction of the impeller cavity 11 (refer to the x direction shown in FIG. 6 ). For example, the water-isolating boss is parallel to the circumferential extension track of the impeller cavity 11 . The arc-shaped water-proof boss, or the water-proof boss can also be a square water-proof 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-shaped structure arranged concentrically with the center of the impeller cavity 11 .

During specific implementation, referring to the direction of the drawing shown in Figure 2, the water blocking surface 114 can be provided only on the right side of the water blocking boss, that is, along the direction from the outer edge of the impeller cavity 11 to the center (refer to r shown in Figure 1 direction), the retaining surface 114 is in the form of a slope inclined toward the circulation port 112 or an arc surface curved toward the circulation port 112, thereby blocking and guiding the wash water. For example, when the water circulation operation is performed, the wash water passes through the circulation port 112 and is blocked by the water retaining surface 114 formed on the side of the water barrier boss close to the circulation port 112, thereby preventing the wash water from continuing to flow into the drain port 111. Causes water leakage.

Alternatively, the water-blocking surface 114 can also be provided only on the left side of the water-blocking boss, that is, along the direction from the outer edge of the impeller cavity 11 to the center (refer to the r direction shown in Figure 1), the water-blocking surface 114 can be in the direction of The drain outlet 111 has an inclined slope or an arc surface that is curved toward the drain outlet 111, thereby blocking and guiding the wash water. For example, when the drainage operation is performed, the wash water flows through the drain port 111 and is blocked by the retaining surface 114 formed on the side of the water-blocking boss close to the drain port 111, thereby preventing the wash water from continuing to flow into the circulation port 112 and causing String water.

Alternatively, retaining surfaces 114 can be provided on both the left side and the right side of the water retaining boss. When the water circulation operation is performed, the wash water flows through the circulation port 112 and is blocked by the water retaining surface 114 formed on the side of the water barrier boss close to the circulation port 112, thereby preventing the wash water from continuing to flow into the drain port 111 and causing cascading. water; when the drainage operation is performed, the wash water flows through the drain port 111 and is blocked on the water retaining surface 114 formed on the side of the water barrier boss close to the drain port 111, thereby preventing the wash water from continuing to flow into the circulation port 112 and causing String water.

In this embodiment, the water retaining surface 114 may be a curved surface structure. Specifically, when the water-blocking surface 114 is formed on the side of the water-proof boss close to the drain outlet 111 , the water-blocking surface 114 on the side close to the drain outlet 111 is an arc surface protruding toward the drain outlet 111 . By setting the retaining surface 114 on the side close to the drain outlet 111 as an arc surface protruding toward the drain outlet 111, the retaining surface 114 on the side close to the drain outlet 111 can form a retaining surface 114 that effectively guides water, so that While blocking the wash water through the retaining surface 114 , the wash water can also be directed toward the drain port 111 so that the wash water is discharged from the drain port 111 to avoid water leakage at the circulation port 112 .

Or, when the water-blocking surface 114 is formed on the side 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 an arc surface protruding toward the circulation port 112 . By setting the retaining surface 114 on the side close to the circulation port 112 as an arc surface protruding toward the circulation port 112, the retaining surface 114 on the side close to the circulation port 112 can form a retaining surface 114 that effectively guides water, so that While blocking the wash water through the retaining surface 114 , the wash water can also be directed toward the circulation port 112 so that the wash water is discharged from the circulation port 112 to avoid water leakage at the drain port 111 .

Alternatively, the retaining surface 114 on the side close to the drain outlet 111 is an arc surface protruding toward the drain outlet 111 and the retaining water surface 114 on the side close to the circulation port 112 is an arc surface protruding toward the circulation port 112 . When draining water, the retaining surface 114 on the side close to the drain outlet 111 can form a retaining surface 114 that effectively guides water, so that the wash water can be blocked by the retaining surface 114 and the wash water can also be directed toward the drain outlet 111 . The flow is diverted so that the wash water is discharged from the drain port 111 to avoid water leakage at the circulation port 112 . When water circulation operation is required, the retaining surface 114 on the side close to the circulation port 112 can form a retaining surface 114 that effectively guides water, so that the washing water can be blocked by the retaining surface 114 and the wash water can also be diverted. The water is directed toward the circulation port 112 so that the wash water is discharged from the circulation port 112 to avoid water leakage at the drain port 111 .

Alternatively, in other implementation manners, the retaining surface 114 may also be a slope structure. The surface of the bevel structure can be either smooth or textured. Specifically, the water retaining surface 114 can be cut with a cutting tool or polished with a grinding equipment.

Referring to Figure 6, the side of the water-proof boss facing the impeller 2 in the impeller cavity 11 is adapted to the shape of the impeller 2. That is, referring to the direction of the drawing shown in Figure 6, the lower surface of the water-proof boss is in the shape of The adapted shape of the upper surface of the impeller cavity 11 can make the arrangement of the impeller 2 and the water-proof boss in the impeller cavity 11 more beautiful and reasonable without affecting the rotation of the impeller 2 .

Optionally, the preset distance between the water-isolating boss and the outer edge of the impeller 2 may be 3 mm, 4 mm or 5 mm. Specifically, the preset distance between the water-isolating boss and the outer edge of the impeller 2 can be set according to actual needs.

In summary, by reasonably setting the preset distance between the water-isolating boss and the outer edge of the impeller 2, it is possible to avoid the preset distance being too large, resulting in too small a difference in the flow rate and lift of the water pump, and to avoid the preset distance being too large. If the range is too small, debris will accumulate and interfere with the rotation of the impeller 2.

In addition, in the direction from the drainage port 111 to the circulation port 112, the size of the water-proof boss in the radial direction of the impeller cavity 11 (refer to the r direction shown in Figure 1) is consistent, which can make the production of the water-proof boss possible. It is simple and convenient, and can not only ensure that water will not flow through the drainage port 111 during the drainage operation, but also ensure that water will not flow through the circulation port 112 during the circulating water operation.

Of course, in other implementations, it can also be provided in the direction from the drainage port 111 to the circulation port 112, and the size of the water-isolating boss in the radial direction of the impeller cavity 11 (refer to the r direction shown in Figure 1) gradually increases. The size of the water-isolating boss in the radial direction of the impeller cavity 11 gradually decreases as it increases, or in the direction from the drainage port 111 to the circulation port 112 .

Referring to Figure 5, in addition to providing a water-proof boss in the impeller cavity 11, a water-proof step 115 connected to the water-proof boss can also be provided in the impeller cavity 11. The water-proof step 115 is located at the circulation port 112 and the drainage port. 111, along the direction from the center to the outer edge of the impeller cavity 11, the water-isolating steps 115 and the water-isolating bosses are arranged in sequence and connected to each other, so that the wash water can be controlled by the water-isolating steps 115 and the water-isolating bosses. Blocking is performed to further ensure that the circulation port 112 and the drain port 111 do not cross water. In specific implementation, the water-isolating step 115 is located at the inner edge of the water-isolating boss.

In addition, in the circumferential direction along the impeller cavity 11, the extension length of the water isolation step 115 may be consistent with the extension length of the water isolation boss, or the extension length of the water isolation step 115 may be greater than the extension length of the water isolation boss, or the extension length of the water isolation step 115 may be greater than the extension length of the water isolation boss. The extension length of the water step 115 is smaller than the extension length of the water isolation boss.

For example, the set distance between the water-isolating step 115 and the outer edge of the impeller 2 may be 3 mm, 4 mm or 5 mm. By reasonably setting the set distance between the water-isolating step 115 and the outer edge of the impeller 2, it is possible to prevent the set distance from being too large, causing the flow rate and lift difference of the water pump to be too small, and to avoid the set distance being too large. Small leads to the accumulation of debris and interference with the rotation of the impeller 2.

Along the axial direction of the impeller cavity 11 (refer to the x direction shown in FIG. 6 ), the height of the water-isolating step 115 is smaller than the height of the water-isolating boss. That is to say, the left end faces of the water-proof step 115 and the water-proof boss can be set flush, and the right end of the water-proof boss protrudes from the right end of the water-proof step 115, so that the water-proof step 115 and the water-proof boss can be used The washing water at different water levels in the impeller cavity 11 is blocked, thereby preventing water from flowing through the circulation port 112 and the drain port 111 . That is to say, when the water level delivered to the impeller cavity 11 is high, the water can be blocked by the water-isolating step 115 and the water-isolating boss at the same time to prevent water from flowing between the drainage port 111 and the circulation port 112; when When the water level delivered to the impeller cavity 11 is low, the water is mainly blocked by the water-isolating step 115 to prevent water from flowing between the drain port 111 and the circulation port 112 . During specific manufacturing, the water-isolating step 115 and the water-isolating boss can be integrally injection molded with plastic to save processes and enhance the overall strength of the pump housing 1 .

During specific implementation, the gap range between the water isolating member 113 and the impeller 2 in the impeller cavity 11 is 3mm-5mm. By reasonably setting the gap range between the water isolating member 113 and the impeller 2, it is possible to avoid an excessive gap range. As a result, the difference between the flow rate and the head of the water pump is too small, and at the same time, it can avoid the accumulation of debris and interference with the rotation of the impeller 2 due to the small clearance range. For example, the gap between the water barrier 113 and the impeller 2 in the impeller cavity 11 may be 3 mm, or 4 mm, or 5 mm. Similarly, the gap between the water isolation member 113 and the impeller 2 in the impeller cavity 11 may be 3 mm, or 4 mm, or 5 mm.

In addition, a water-isolating boss can be provided close to one side surface of the impeller 2 in the impeller cavity 11 to match the shape of the impeller 2, so that the impeller 2 in the impeller cavity 11 can be separated from the water without affecting the rotation of the impeller 2. The arrangement of the boss is more beautiful and reasonable.

The water-isolating boss and the pump casing 1 can be integrally injection-molded with plastic to save processes and enhance the overall strength of the pump casing 1 .

This embodiment also provides a clothes treatment device, including the water pump described in Embodiment 1. Specifically, the specific structure and implementation principle of the water pump refer to the above description. For other structures of the laundry treatment device, please refer to the description of the fourth embodiment below.

Embodiment 2

Referring to FIGS. 1 to 7 , the water pump provided in this embodiment is different from the water pump in Embodiment 1 in that the side of the partition 122 close to the impeller chamber 11 has a water pump extending in the direction from the circulation port 112 to the drain port 111 . The buffer groove 1151, for example, can be an arc-shaped groove extending along the circumferential direction of the pump housing 1. The buffer groove 1151 is located between the circulation port 112 and the drain port 111 to allow the water in the impeller chamber 11 to flow through. When buffering the groove 1151, a turbulent flow state is formed. That is, the buffer groove 1151 is disposed in the impeller cavity 11 and can contact the wash water in the impeller cavity 11 to disturb the flow of the wash water, so that the wash water is disturbed and turbulent and forms a vortex state, forming a vortex state. The remaining wash water cannot continue to flow forward.

For example, during the drainage operation, after the wash water flows clockwise to the drain outlet 111 under the agitation of the impeller 2, part of the wash water is not discharged from the drain outlet 111 and continues to flow to the buffer groove 1151. In the buffer groove A vortex is formed under the turbulence of 1151, and the flow cannot continue to flow clockwise to the circulation port 112, thereby preventing water from flowing through the circulation port 112.

Similarly, during the circulating water operation, after the wash water flows counterclockwise to the circulation port 112 under the agitation of the impeller 2, part of the wash water is not discharged from the circulation port 112 and continues to flow to the buffer groove 1151. The turbulence of the groove 1151 forms a vortex, and the flow cannot continue to flow counterclockwise to the drain outlet 111 , thereby preventing water from flowing through the drain outlet 111 .

The specific working process of the water pump is: when the drainage operation is performed, the motor starts and drives the impeller 2 to rotate clockwise. When the impeller 2 rotates, the washing water in the impeller cavity 11 also flows clockwise, and part of the washing water flows to the pump. The drain outlet 111 flows out to the outside of the clothes processing device through the drain outlet 111, and part of the washing water flows through the drain outlet 111 and then impacts on the buffer groove 1151 to form a vortex, and then flows back to the drain outlet 111 and flows out through the drain outlet 111 to achieve drainage. operation and can avoid water leakage at the circulation port 112. When the water circulation operation is performed, the motor starts and drives the impeller 2 to rotate counterclockwise. When the impeller 2 rotates, the washing water in the impeller cavity 11 also flows counterclockwise. Part of the washing water flows to the circulation port 112 and is circulated. After flowing out of the port 112, it flows back to the inner cavity of the drum for recycling, and part of the washing water flows through the circulation port 112 and then impacts on the buffer groove 1151 to form a vortex, and then flows back to the circulation port 112 and flows into the inner cavity of the drum through the circulation port 112. , realizes circulating water operation and can avoid water leakage at the drain outlet 111.

Referring to FIG. 2 , the center of the partition 122 has a through hole 123 connecting the filter chamber 12 and the impeller chamber 11 , and the buffer groove 1151 is close to the through hole 123 . Specifically, the distance between the buffer groove 1151 and the through hole 123 can be set according to actual needs.

In addition, the end of the buffer groove 1151 close to the drainage outlet 111 can extend to the end of the drainage outlet 111 close to the circulation opening 112, or there can be a distance from the drainage opening 111; and/or, the end of the buffer groove 1151 close to the circulation opening One end of 112 may extend to an end of the circulation port 112 close to the drainage port 111 , or may have a certain distance from the circulation port 112 .

That is to say, along the direction of the drawing shown in Figure 2, if the drain outlet 111 is located on the left side of the circulation opening 112, then the left end of the buffer groove 1151 can be set to extend to the drain outlet 111, and the right end of the buffer groove 1151 can be set to extend to the circulation port 112; or the left end of the buffer groove 1151 does not extend to the drainage port 111, and the right end of the buffer groove 1151 does not extend to the circulation port 112; or the left end of the buffer groove 1151 extends to the drainage port 111, and the buffer groove 1151 does not extend to the circulation port 112. The right end of the groove 1151 does not extend to the circulation port 112; or the left end of the buffer groove 1151 does not extend to the drainage port 111, and the right end of the buffer groove 1151 extends to the circulation port 112. The specific extension length of the buffer groove 1151 along the circumferential direction of the impeller cavity 11 can be set according to actual needs.

In this embodiment, the extended shape of the buffer groove 1151 can be arc-shaped. By setting the buffer groove 1151 to be an arc-shaped arc-shaped groove, the arc-shaped buffer groove 1151 and the washing water can be connected in the impeller cavity 11 The flow directions are close, which facilitates the washing water to flow into the buffer groove 1151 to form a turbulent flow state, thereby preventing the washing water from continuing to flow and causing water leakage. Of course, in other implementations, the buffer groove 1151 can also be provided as a horizontal groove or a wavy groove along the drainage port 111 to the circulation port 112 . In addition, the cross-sectional shape of the buffer groove 1151 may be U-shaped, or, in other implementations, the cross-sectional shape of the buffer groove 1151 may be a semicircle, an ellipse, or a square shape.

During specific implementation, the width size range of the buffer groove 1151 along the radial direction of the impeller cavity 11 (refer to the r direction shown in Figure 1) is 1mm-2mm, and the buffer groove 1151 is along the axial direction of the impeller cavity 11 (refer to the r direction shown in Figure 1). The depth dimension in the x direction shown in 6 is not greater than 3 mm, so that the size of the buffer groove 1151 along the radial direction of the impeller cavity 11 can be reasonably set, so that turbulent flow occurs when an appropriate amount of wash water flows through the buffer groove 1151 This further generates a vortex, which can reduce the flow rate of the washing water to a certain extent, thereby preventing water from flowing between the circulation port 112 and the drain port 111 .

For example, the width dimension of the buffer groove 1151 along the radial direction of the impeller cavity 11 (refer to the r direction shown in FIG. 1 ) may be 1 mm, or 1.5 mm, or 2 mm. The depth dimension of the buffer groove 1151 along the axial direction of the impeller cavity 11 (refer to the x direction shown in FIG. 6 ) may be 1 mm, or 1.5 mm, or 2 mm, or 2.5 mm. Specifically, the size of the buffer groove 1151 along the radial direction of the impeller cavity 11 and the depth size along the axial direction of the impeller cavity 11 are related to the amount of wash water in the impeller cavity 11 and the discharge amount of the wash water. This embodiment does not specifically limit this.

Referring to FIG. 2 , in this embodiment, the center of the buffer groove 1151 can be arranged coaxially with the center of the pump casing 1 , thereby not only making it easier to manufacture the buffer groove 1151 , but also making it easier to move the buffer groove 1151 along the direction in the impeller cavity 11 . The wash water flowing in the rotation direction of the impeller 2 flows into the buffer groove 1151 and generates turbulent flow, which prevents the wash water from continuing to flow and causing water leakage.

That is to say, 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 usually also coaxially arranged, so that the impeller passes through the impeller. 2. The flow direction of the agitated wash water in the impeller cavity 11 is closer to the extension trajectory of the buffer groove 1151 along the circumferential direction of the impeller cavity 11, so that the wash water can be better disturbed to avoid the drain outlet 111 and circulation. Water leakage occurs between ports 112.

During specific implementation, the buffer groove 1151 may be provided with one or multiple buffer grooves 1151 . By providing the buffer grooves 1151 , the buffer grooves 1151 include multiple buffer grooves 1151 that are sequentially arranged along the radial direction of the impeller cavity 11 , so that the plurality of buffer grooves 1151 can be used to jointly buffer the impeller cavity 115 . The wash water performs a buffering and disturbing function to further ensure that the circulation port 112 and the drain port 111 do not cross water.

Furthermore, when multiple buffer grooves 1151 are provided, the plurality of buffer grooves 1151 are arranged in sequence along the radial direction of the impeller cavity 11 (refer to the r direction shown in FIG. 1 ). Specifically, the extension lengths of the plurality of buffer grooves 1151 sequentially arranged along the radial direction of the impeller cavity 11 along the circumferential direction of the impeller cavity 11 may be consistent or inconsistent.

Optionally, a water barrier 113 can be provided on the wall of the impeller chamber 11, and a buffer groove 1151 can be provided on the water barrier 113, so that not only can the wash water be disturbed by the buffer groove 1151 to form a vortex, In addition to preventing the washing water from continuing to flow and causing water to leak, the water barrier 113 can also be used to block the washing water to prevent water from flowing.

That is, when the drainage operation is performed, the wash water flows through the drain port 111 and is blocked on the side of the water barrier 113 close to the drain port 111, thereby preventing the wash water from continuing to flow into the circulation port 112 and causing water leakage; or, When the water circulation operation is performed, the wash water passes through the circulation port 112 and is blocked on the side of the water barrier 113 close to the circulation port 112 , thereby preventing the wash water from continuing to flow into the drain port 111 and causing water leakage.

The specific working process of the water pump provided with the water isolator 113 is as follows: when performing the drainage operation, the motor starts and drives the impeller 2 to rotate clockwise. When the impeller 2 rotates, it stirs the washing water in the impeller cavity 11 and also rotates in the clockwise direction. When the hour hand flows, part of the washing water flows to the drain outlet 111 and flows out to the outside of the clothes processing device through the drain outlet 111, while part of the wash water flows through the drain outlet 111 and then impacts on the water isolating member 113 to form a vortex and then flows out through the drain outlet 111. Drainage operation can avoid water leakage at the circulation port 112. When the water circulation operation is performed, the motor starts and drives the impeller 2 to rotate counterclockwise. When the impeller 2 rotates, the washing water in the impeller cavity 11 also flows counterclockwise. Part of the washing water flows to the circulation port 112 and is circulated. After flowing out of the outlet 112, it flows back into the inner cavity of the drum to achieve recycling, and part of the washing water flows through the circulation outlet 112 and then impacts on the water isolator 113 to form a vortex, and then flows through the circulation outlet 112 into the inner cavity of the drum to achieve circulating water operation and Water leakage at the drain outlet 111 can be avoided.

To sum up, the water pump of this embodiment can further ensure that the circulation port 112 and the drain port 111 will not cross water through the water barrier 113 and the buffer groove 1151, thus the dual functions of the water barrier 113 and the buffer groove 1151. .

The water-isolating member 113 is a water-isolating boss, and a water-isolating step 115 is also provided in the impeller cavity 11. The buffer groove 1151 is provided on the water-isolating step 115; the height dimension of the water-isolating step 115 along the axial direction of the impeller cavity 11 is less than The height dimension of the water-isolating boss along the axial direction of the impeller cavity 11.

That is to say, along the axial direction of the impeller cavity 11 (refer to the x direction shown in Figure 6), the height dimension of the water-proof step 115 is smaller than the height dimension of the water-proof boss, and the left end of the water-proof step 115 and the water-proof boss The end faces can be set flush, and the right end of the water-proof boss protrudes from the right end of the water-proof step 115, so that the water-proof step 115 and the water-proof boss can be suitable for blocking washing water at different water levels in the impeller cavity 11, so that Prevent water from flowing through the circulation port 112 and the drainage port 111.

That is to say, when the water level delivered to the impeller cavity 11 is high, the water can be blocked by the water-isolating step 115 and the water-isolating boss at the same time to prevent water from flowing between the drainage port 111 and the circulation port 112; when When the water level delivered to the impeller cavity 11 is low, the water is mainly blocked by the water-isolating step 115 and the buffer groove 1151 located on the water-isolating step 115 to prevent water from flowing between the drain port 111 and the circulation port 112 .

Referring to FIG. 5 , a flow guide gap 116 may be provided on the water isolating member 113 close to the circulation port 112 , so that the water flow can be guided to the circulation port 112 . In the direction from the water inlet of the flow guide gap 116 to the bottom of the flow guide gap 116 (refer to the direction t shown in FIG. 2 ), the width of the flow guide gap 116 (refer to the dimension d in FIG. 2 ) gradually decreases. The purpose of setting is that since the position of the water isolating member 113 close to the circulation port 112 blocks part of the circulation port 112, it may have a certain impact on the drainage volume at the circulation port 112. Therefore, setting the width of the diversion gap 116 to gradually reduce can have a certain effect on the water drainage. The diversion effect of the wash water quickly guides the wash water to be discharged to the circulation port 112, thereby overcoming the problem of insufficient drainage caused by the water isolating member 113 blocking part of the circulation port 112.

This embodiment also provides a clothes processing device, including the water pump described in Embodiment 2. Specifically, the specific structure and implementation principle of the water pump refer to the above description. For other structures of the laundry treatment device, please refer to the description of the fourth embodiment below.

Embodiment 3

Referring to Figures 1 to 7, the difference between the water pump provided in this embodiment and the first and second embodiments is that the partition 122 is provided with a pressure relief hole 124, and the pressure relief hole 124 is connected to the impeller chamber 11 and the filter respectively. The cavities 12 are connected so that the water in the impeller cavity 11 can flow back into the filter cavity 12 through the pressure relief hole 124 to avoid water leakage at the circulation port 112 or the drain port 111 .

For example, during the drainage operation, after the wash water flows clockwise to the drain port 111 under the agitation of the impeller 2, part of the wash water that is not discharged from the drain port 111 can flow back into the filter cavity 12 through the pressure relief hole 124. While achieving pressure relief, the washing water is prevented from continuing to flow to the circulation port 112, causing water to flow through the circulation port 112.

Similarly, during the water circulation operation, after the washing water flows counterclockwise to the circulation port 112 under the agitation of the impeller 2, part of the washing water that is not discharged from the circulation port 112 can flow back to the filter chamber 12 through the pressure relief hole 124. to achieve pressure relief while preventing the wash water from continuing to flow to the drain outlet 111, causing water to flow in the drain outlet 111.

The specific working process of the water pump is: when the drainage operation is performed, the motor starts and drives the impeller 2 to rotate clockwise. When the impeller 2 rotates, the washing water in the impeller cavity 11 also flows clockwise, and part of the washing water flows to the pump. The drain port 111 flows out to the outside of the clothes treatment device through the drain port 111, and part of the washing water flows through the drain port 111 and then is discharged from the pressure relief hole 124 into the filter cavity 12, thereby preventing water from flowing through the circulation port 112. When the water circulation operation is performed, the motor starts and drives the impeller 2 to rotate counterclockwise. When the impeller 2 rotates, the washing water in the impeller cavity 11 also flows counterclockwise. Part of the washing water flows to the circulation port 112 and is circulated. After flowing out of the port 112, it flows back into the inner cavity of the drum for recycling, and part of the washing water flows through the circulation port 112 and then is discharged from the pressure relief hole 124 into the filter chamber 12, thereby preventing water from flowing through the drain port 111.

The pressure relief holes 124 include at least two, and the at least two pressure relief holes 124 are arranged at intervals along the circumference of the impeller chamber 11 . For example, there may be two or three pressure relief holes 124 , and the two or three pressure relief holes 124 are arranged along the circumferential direction of the impeller chamber 11 . The plurality of pressure relief holes 124 are distributed at intervals along the circumferential direction of the impeller cavity 11, so that the distribution pattern of the plurality of pressure relief holes 124 is similar to the flow direction of the wash water to facilitate pressure relief. In other ways, two or three pressure relief holes 124 are provided at intervals along the radial direction of the impeller chamber 11 (refer to the r direction shown in FIG. 1 ).

That is to say, in this embodiment, multiple pressure relief holes 124 can be provided to relieve the pressure of the wash water in the impeller cavity 11 to prevent the wash water from flowing around the drain port 111 or the circulation port 112 . The specific number and distribution mode of the pressure relief holes 124 can be set according to actual needs, and this embodiment does not specifically limit this.

Generally speaking, the water pressure at the circulation port 112 is relatively large, so the pressure relief hole 124 can be set close to the circulation port 112 for better pressure relief, so that part of the water in the impeller chamber 11 is discharged from the circulation port 112, and part of the water is discharged from the circulation port 112. Discharge from the pressure relief hole 124 to prevent the wash water from continuing to flow to the drain port 111 and causing water to flow in the drain port 111, and to increase the amount of wash water discharged from the circulation port 112. Or, in other implementation manners, the pressure relief hole 124 may also be provided close to the drain outlet 111 . The specific location of the pressure relief hole 124 is set based on the amount of drained water, the amount of circulating water, and the degree of possibility of preventing water cross-flow.

In this embodiment, the central axis of the pressure relief hole 124 can be set parallel to the central axis of the impeller chamber 11 (refer to the x direction shown in Figure 6), so that the pressure relief hole 124 can be easily processed.

Of course, in other implementations, the central axis of the pressure relief hole 124 may also be arranged to intersect with the central axis of the impeller chamber 11 to facilitate the smooth flow of wash water through the pressure relief hole 124 . For example, when the pressure relief hole 124 is set close to the circulation port 112, along the direction from the impeller chamber 11 to the filter chamber 12, the central axis of the pressure relief hole 124 can be set to gradually deviate from the circulation port 112 along the flow direction of the wash water. ; When the pressure relief hole 124 is set close to the drain outlet 111, along the direction from the impeller chamber 11 to the filter chamber 12, the central axis of the pressure relief hole 124 can be set to gradually deviate from the drain outlet 111 along the flow direction of the wash water.

During specific implementation, the aperture range of the pressure relief hole 124 is 1mm-5mm. By reasonably setting the aperture of the pressure relief hole 124, the pressure relief performance of the washing water in the impeller cavity 11 from the pressure relief hole 124 can be controlled, so that the pressure relief performance can be controlled. Avoid water leakage in the drainage port 111 or the circulation port 112. For example, the diameter of the pressure relief hole 124 may be 1 mm, 3 mm or 5 mm.

Referring to Figures 2 and 7, a water barrier 113 can be provided on the wall of the impeller chamber 11, and a through hole 1152 connected to the pressure relief hole 124 is provided on the water barrier 113, so that not only can the through hole 1152 and the pressure relief hole 124 to achieve pressure relief to prevent water from flowing in, and the water barrier 113 can also be used to block the washing water to prevent water from flowing in. In specific implementation, the water-isolating member 113 may be a water-isolating boss provided on the wall of the impeller cavity 11 .

Referring to Figure 1, a limit hook 3 can also be provided on the outer wall of the pump casing 1 to fix the wires connected to the motor of the water pump, so that the wires are distributed according to the path defined by the limit hook 3, so that The routing of wires is more regular.

The limiting hook 3 is disposed on the pump housing 1 away from the drain port 111 and the circulation port 112 to avoid interference between the wires and the drainage pipe connected to the drain port 111 or the circulation pipe connected to the circulation port 112 . There may be two or more limiting hooks 3 , and the routing paths of wires extending according to a preset path are defined between the plurality of limiting hooks 3 .

During specific implementation, the limiting hook 3 can be integrally formed on the pump housing 1 to simplify the manufacturing process; or the limiting hook 3 can also be fixed on the outer wall of the pump housing 1 by snapping or bonding.

This embodiment also provides a clothes treatment device, including the water pump described in Embodiment 3. Specifically, the specific structure and implementation principle of the water pump refer to the above description. For other structures of the laundry treatment device, please refer to the description of the fourth embodiment below.

Embodiment 4

Referring to FIGS. 1 to 7 , this embodiment also provides a clothes processing device, which includes a housing, a drum located in the housing, and a water pump located between the housing and the drum. Wherein, the casing forms the appearance of the laundry treatment device. And the casing has an inlet (not shown in the figure) through which wash water can enter. The position corresponding to the drum on the casing is provided with a clothes putting opening or a clothes taking-out opening. The clothes putting opening or the clothes taking out opening can be provided on one side of the housing or on the top of the housing. For example, the clothes treatment device of this embodiment may be a washing machine, and its water pump may be a circulating and draining integrated water pump, so that circulating water operation and drainage operation can be realized.

In specific implementation, the water pump of the laundry treatment device includes a pump housing 1 . The pump housing 1 may specifically include an impeller chamber 11 for placing the impeller 2 and a filter chamber 12 for water inlet. The wall of the filter chamber 12 is provided with a filter port 121 that communicates with the inner cavity of the drum of the clothes treatment device. The wall of the impeller chamber 11 is provided with a circulation port 112 that is used to communicate with the inner cavity of the drum of the clothes treatment device and communicate with the outside. The drainage port 111, the circulation port 112 and the drainage port 111 are spaced apart, so that the washing water entering the impeller chamber 11 can be discharged from the circulation port 112 to achieve water circulation or discharge from the drainage port 111 to achieve drainage.

Referring to FIGS. 1 to 7 , a pressure relief hole 124 is provided on the partition 122 . The pressure relief hole 124 is connected to the impeller chamber 11 and the filter chamber 12 respectively, so that the water in the impeller chamber 11 can flow back through the pressure relief hole 124 into the filter cavity 12 to prevent water from flowing through the circulation port 112 or the drainage port 111.

Furthermore, a water-proof boss is provided on the wall of the impeller cavity 11. The water-proof boss is located between the circulation port 112 and the drainage port 111, thereby preventing water from flowing between the circulation port 112 and the drainage port 111. That is, when the drainage operation is performed, the washing water flows through the drainage port 111 and is blocked by the water isolating member, thereby preventing the washing water from continuing to flow into the circulation port 112 and causing water leakage; when the water circulation operation is performed, the washing water flows through the circulation port 112 after It is blocked by the water isolating member, thereby preventing the wash water from continuing to flow into the drain port 111 and causing water leakage.

Furthermore, the side of the partition 122 close to the impeller chamber 11 has a buffer groove 1151 extending along the circumferential direction of the pump housing 1 , and the buffer groove 1151 is located between the circulation port 112 and the drain port 111 , so that the impeller chamber 11 When the water inside flows through the buffer groove 1151, it forms a turbulent flow state. That is to say, the buffer groove 1151 is disposed in the impeller cavity 11 and can contact the washing water in the impeller cavity 11 to disturb the flow of the washing water, so that the washing water is disturbed and turbulent and forms a vortex state, forming a vortex state. The wash water in the vortex state cannot continue to flow forward.

Similarly, when the water circulation operation is performed, after the wash water flows counterclockwise to the circulation port 112 under the agitation of the impeller 2, part of the wash water is not discharged from the circulation port 112 and continues to flow to the buffer groove 1151. The vortex is formed under the turbulence of the groove 1151 and cannot continue to flow counterclockwise to the drain outlet 111 , thereby preventing water from flowing through the drain outlet 111 .

In summary, in the clothes processing device of this embodiment, the rotation direction of the motor can be changed, thereby driving the rotation direction of the impeller 2 to change. Therefore, the water pump of the clothes processing device of this embodiment can perform the function of a drainage pump and can also perform a circulation pump. Function, that is, one water pump can realize drainage operation and circulating water operation, thereby greatly simplifying the structure of the clothes treatment device, reducing the volume of the clothes treatment device, saving space, and reducing the cost of the clothes treatment device.

In addition, in the water pump of this embodiment, the rotation speed of the motor can be set higher when performing the drainage operation, and the rotation speed of the motor can be set lower when performing the water circulation operation, thereby preventing unnecessary noise and energy loss.

In specific implementation, the water pump is located in the casing and between the casing and the drum. Specifically, the water pump is located at the bottom of the drum. Once the washing water in the drum inner cavity flows into the impeller cavity 11 of the water pump, the water pump can perform a water circulation process or Drainage process.

The connection method between the water pump and the casing is: the pump casing 1 is provided with a first connection part, the casing is provided with a second connection part, and the water pump is fixed on the inner wall of the casing through the cooperation of the first connection part and the second connection part. For example, the first connection part may be a snap-fitting protrusion, and the second connection part may be a snap-fitting groove that is not snap-fitted with the snap-fitting protrusion. The water pump is fixed on the inner wall of the housing through snap-fitting between the snap-fitting protrusion and the snap-fitting slot. ; Alternatively, the first connecting part and the second connecting part are both threaded holes, and the fasteners are inserted into the threaded holes to fix the water pump on the inner wall of the housing.

In addition, the casing of the laundry treatment device can be made of plastic material or lightweight alloy material. In addition, the casing of the laundry treatment device may be either square or circular.

For other technical features of the clothes processing device of this embodiment, reference can be made to the description of Embodiment 1, and will not be described again here.

It should be noted that in this article, relational terms such as “first” and “second” are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is no such actual relationship or sequence between entities or operations. Furthermore, the terms "comprises," "comprises," or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

The above descriptions are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the disclosure. Therefore, the present disclosure is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

A water pump, characterized in that it includes a pump casing, the pump casing has an impeller cavity, and the cavity wall of the impeller cavity has a circulation port for communicating with the inner cavity of the drum of the clothes treatment device and a drainage port for communicating with the outside. , the circulation port and the drainage port are arranged at intervals;

A water barrier is provided on the wall of the impeller chamber. The water barrier is located between the circulation port and the drainage port, and a side of the water barrier close to the circulation port faces the circulation port. The circulation opening extends and blocks part of the circulation opening.
The water pump according to claim 1, wherein the water-isolating member includes a water-isolating boss provided on the wall of the impeller chamber; at least one part of the water-isolating boss is close to the drain outlet. The side surface and/or at least the side surface close to the circulation port is formed as a water retaining surface.
The water pump according to claim 2, wherein the retaining surface on the side close to the drain outlet is an arc surface protruding toward the drain outlet;

And/or, the water retaining surface on the side close to the circulation port is an arc surface protruding toward the circulation port;

And/or, the side of the water-isolating boss facing the impeller in the impeller cavity is adapted to the outer contour shape of the impeller;

And/or, in the direction from the drainage port to the circulation port, the size of the water-isolating boss in the radial direction of the impeller cavity is consistent;

And/or, the preset distance range between the water-isolating boss and the outer edge of the impeller in the impeller cavity is 3mm-5mm.
The water pump according to claim 2, characterized in that, the water pump further includes a water-proof step, the water-proof step is located between the circulation port and the drain outlet, and the water-proof step is located on the water barrier. The side of the water boss close to the center of the impeller cavity.
The water pump according to claim 4, characterized in that, in the axial direction along the impeller cavity, the height of the water-isolating step is smaller than the height of the water-isolating boss.
The water pump according to any one of claims 1 to 5, characterized in that the water isolating member is provided with a flow guide gap at a position close to the circulation port; and the water inlet along the flow guide gap to the In the direction of the bottom of the flow guiding gap, the width of the flow guiding gap gradually decreases.
The water pump according to any one of claims 1 to 5, characterized in that, in the circumferential direction along the impeller cavity, between the side of the water isolation member close to the drain outlet and the drain outlet There is a gap in between.
A laundry treatment device, characterized by comprising a casing, a drum disposed in the casing, and a water pump according to any one of claims 1 to 7 disposed between the casing and the drum.
A water pump, characterized in that it includes a pump casing, the pump casing has a cavity, and the cavity is divided into a filter cavity and an impeller cavity through a partition; the cavity wall of the impeller cavity has a structure for communicating with a clothes processing device A circulation port connected to the inner cavity of the drum and a drainage port connected to the outside, the circulation port and the drainage port being spaced apart;

The side of the partition member close to the impeller cavity has a buffer groove. The buffer groove is located between the circulation port and the drainage port, and the buffer groove extends from the circulation port to the drainage port. extends in the direction of the mouth.
The water pump according to claim 9, wherein the buffer groove is an arc-shaped groove extending along the circumferential direction of the impeller chamber.
The water pump according to claim 10, characterized in that the center of the circle where the arc-shaped groove is located is coaxially arranged with the center of the impeller cavity.
The water pump according to claim 9, wherein the buffer grooves include at least two, and the at least two buffer grooves are sequentially arranged along the radial direction of the impeller chamber.
The water pump according to any one of claims 9 to 12, wherein the width dimension of the buffer groove along the radial direction of the impeller cavity ranges from 1 mm to 2 mm.
The water pump according to any one of claims 9 to 12, characterized in that the depth dimension of the buffer groove along the axial direction of the impeller cavity is not greater than 3 mm.
The water pump according to any one of claims 9 to 12, characterized in that a water-proof boss is provided on the wall of the impeller chamber, and the water-proof boss is located between the drainage port and the circulation port. The buffer groove is provided on the water-isolating boss.
The water pump according to claim 15, characterized in that a water-proof step is further provided on the wall of the impeller cavity, and the water-proof step is formed along the center of the impeller cavity toward the wall of the impeller cavity. Water steps and water-isolating bosses are arranged in sequence, and the buffer groove is provided on the water-isolating steps;

The height of the water-isolating step along the axial direction of the impeller cavity is smaller than the height of the water-isolating boss along the axial direction of the impeller cavity.
The water pump according to claim 16, wherein the water-isolating step is arranged parallel to the impeller in the impeller chamber.
The water pump according to claim 17, characterized in that the gap between the water-isolating step and the impeller ranges from 3 mm to 5 mm.
The water pump according to claim 15, characterized in that at least one side of the water-proof boss close to the drainage port and/or at least one side close to the circulation port is formed as a water-proof surface.
The water pump according to claim 19, characterized in that, the retaining surface on the side close to the drain outlet is an arc surface protruding toward the drain outlet; and/or, all the water retaining surfaces on the side close to the circulation outlet are The water retaining surface is an arc surface protruding toward the circulation port.
The water pump according to claim 15, characterized in that, the water-isolating boss is provided with a flow guide gap at a position close to the circulation port; and the water inlet along the flow guide gap to the bottom of the flow guide gap In the direction, the width of the flow guide gap gradually decreases.
A laundry treatment device, characterized by comprising a casing, a drum disposed in the casing, and a water pump according to any one of claims 9 to 21 disposed between the casing and the drum.
A water pump, characterized in that it includes a pump casing, the pump casing has a cavity, the cavity is divided into an impeller cavity and a filter cavity through a partition, and the impeller cavity has a cavity wall for communicating with a clothes processing device. The circulation port connected to the inner cavity of the drum and the drainage port connected to the outside, and the cavity wall of the filter chamber has a filter port connected to the inner cavity of the drum;

The partition is provided with a pressure relief hole, and the pressure relief hole is connected to the impeller chamber and the filter chamber respectively, so that the water in the impeller chamber can flow back to the filter through the pressure relief hole. inside the cavity.
The water pump according to claim 23, wherein the pressure relief hole is provided close to the circulation port;

And/or, there are at least two pressure relief holes, and at least two pressure relief holes are arranged at intervals along the circumference of the impeller chamber;

And/or, the central axis of the pressure relief hole is parallel to the central axis of the impeller cavity;

And/or, the pressure relief hole has a diameter ranging from 1 mm to 5 mm.
The water pump according to claim 23, wherein a water barrier is provided on the side of the partition close to the impeller chamber, and the water barrier is located between the circulation port and the drain port; A through hole connecting the pressure relief hole and the impeller cavity is provided on the water isolating member at a position corresponding to the pressure relief hole.
The water pump according to claim 25, wherein the water isolating member is provided with a flow guide gap at a position close to the circulation port, the through hole is provided at the bottom of the flow guide gap, and the through hole is The hole is connected with the flow guide gap.
The water pump according to claim 26, wherein the width of the flow guide gap gradually decreases in a direction from the water inlet of the flow guide gap to the bottom of the flow guide gap.
The water pump according to claim 25, wherein the water-isolating member includes a water-isolating boss arranged on the wall of the impeller chamber; at least one side of the water-isolating boss close to the drain outlet And/or at least one side close to the circulation port is formed as a water retaining surface.
The water pump according to claim 28, characterized in that, the retaining surface on the side close to the drain outlet is an arc surface protruding toward the drain outlet; and/or, all the water retaining surfaces on the side close to the circulation outlet are The water retaining surface is an arc surface protruding toward the circulation port.
A laundry treatment device, characterized by comprising a casing, a drum disposed in the casing, and a water pump according to any one of claims 23 to 29 disposed between the casing and the drum.