CN111074480A

CN111074480A - Water diversion pump and washing machine

Info

Publication number: CN111074480A
Application number: CN202010023270.XA
Authority: CN
Inventors: 李海杰; 傅晓勇; 赖毅俊; 陈微; 卢挺浩; 罗瑞玺
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-11-02
Filing date: 2020-01-09
Publication date: 2020-04-28
Also published as: CN111088642A; CN111058219A; CN111139620A; CN111235818A; CN211947598U; CN212925484U; CN212152794U; CN111197225A; CN111394931A; CN212611479U; WO2021083006A1; CN111074476A; CN111074474A; CN111058218B; CN111074473A; CN111074475A; CN111118810B; CN212152788U; CN212357689U; EP4026938A4

Abstract

The invention provides a water diversion pump and a washing machine. The export of dividing the water pump is equipped with the rotation type two-way valve, the rotation type two-way valve includes: the shell is in a long cylinder shape; the valve core is arranged in the shell in a rotatable mode along the axial direction of the long cylinder of the shell; the driving assembly is arranged on one side of the valve core and drives the valve core to rotate in the shell; the upper circumferential surface of the shell is provided with a shell liquid inlet, and the lower circumferential surface of the shell is provided with two shell liquid outlets; two valve core liquid inlets which are communicated with the shell liquid inlet and two valve core liquid outlets which are communicated with the two shell liquid outlets are formed on the peripheral surface of the valve core; the two valve core liquid inlets and the two valve core liquid outlets are in one-to-one correspondence and form independent flow channels; when the valve core is driven by the driving assembly to rotate to different preset angles, the inlet and the outlet of one corresponding flow channel in the valve core correspond to and are communicated with the shell liquid inlet and the shell liquid outlet according to preset rules.

Description

Water diversion pump and washing machine

Technical Field

The invention relates to a pump structure, in particular to a water diversion pump and a washing machine.

Background

Washing machines have become an important component of everyday appliances. More and more users are looking for healthier washing methods, and water circulation is one of the links. However, the water circulation of the washing machine generally adopts a separate circulating water pump, which results in insufficient space utilization and increased design cost.

Disclosure of Invention

In view of the above, the present invention provides a water diversion pump and a washing machine, to solve the above problems, specifically:

the invention provides a water pump, wherein a rotary two-way valve is arranged at an outlet of the water pump, and the rotary two-way valve comprises:

the shell is in a long cylinder shape;

the valve core is arranged in the shell in a rotatable mode along the axial direction of the long cylinder of the shell;

the driving assembly is arranged on one side of the valve core and drives the valve core to rotate in the shell;

the upper circumferential surface of the shell is provided with a shell liquid inlet, and the lower circumferential surface of the shell is provided with two shell liquid outlets;

two valve core liquid inlets which are communicated with the shell liquid inlet and two valve core liquid outlets which are communicated with the two shell liquid outlets are formed on the peripheral surface of the valve core; the two valve core liquid inlets and the two valve core liquid outlets are in one-to-one correspondence and form independent flow channels;

when the valve core is driven by the driving assembly to rotate to different preset angles, the inlet and the outlet of one corresponding flow channel in the valve core correspond to and are communicated with the shell liquid inlet and the shell liquid outlet according to preset rules.

Further optionally, the two shell liquid outlets are a first shell liquid outlet and a second shell liquid outlet respectively;

the flow channel in the valve core comprises a first flow channel and a second flow channel, the first flow channel and the second flow channel are not on the same plane, wherein:

the first flow channel is provided with a first through hole A and a first through hole B on the circumferential surface of the valve core;

the second flow channel is provided with a second through hole A and a second through hole B on the circumferential surface of the valve core;

the valve core forms a gap between the first through hole A and the position corresponding to the liquid inlet of the shell, and when the first through hole A is communicated with the liquid inlet of the shell through the gap, the first through hole B is communicated with the liquid outlet of the first shell;

when the second through hole A is communicated with the liquid inlet of the shell, the second through hole B is communicated with the liquid outlet of the second shell.

Further optionally, the first flow passage and the second flow passage are both formed along a radial direction of the valve core.

Further optionally, a portion of the gap is in communication with a portion of the housing inlet.

Further optionally, the rotary two-way valve further comprises: a first sealing ring, a second sealing ring and a third sealing ring,

the first sealing ring is sleeved on the valve core and is positioned at one end far away from the driving assembly; the second sealing ring is sleeved on the valve core and is positioned between the first flow channel and the second flow channel; the third sealing ring is sleeved on the valve core and is positioned at one end close to the driving assembly.

Further optionally, a sealing ring supporting bridge is arranged at the notch and used for supporting and limiting the second sealing ring.

Further optionally, the driving assembly includes a motor for driving the valve core to rotate to a preset angle in the housing to form different passages.

Further optionally, a sealing washer is arranged between the motor and the valve core.

Further optionally, a cylinder bottom is arranged at one end of the shell far away from the driving component,

the inner side surface of the cylinder bottom is provided with a positioning support groove, the axis of one end of the valve core close to the cylinder bottom is provided with a positioning column, and the positioning column is assembled in the positioning support groove.

Further optionally, an opening direction of the first flow channel and an opening direction of the second flow channel form an angle of 90 °.

Further optionally, the water pump further comprises a pump body shell, a drainage motor, an impeller, a filter screen and a sealing cover,

the filter screen is arranged inside the pump body shell; the transmission end of the drainage motor is connected with an impeller, the impeller extends into the pump body shell, and the drainage motor is fixedly connected to one end of the pump body shell; the sealing cover is arranged at the other end of the pump body shell.

In a second aspect, the invention provides a washing machine comprising a water circuit system, wherein the water circuit system adopts the water pump as described in any one of the above items.

Further optionally, the waterway system further comprises: a water inlet pipeline, a washing barrel, a front section water return pipeline, a rear section water return pipeline and a water discharge pipeline,

the export of water intake pipe lets in the upper portion of washing barrel, the lower part intercommunication of washing barrel the entry of anterior segment return water pipeline, the export of anterior segment return water pipeline communicates the main way opening of water pump, a casing liquid outlet intercommunication water discharge line's entry, another casing liquid outlet intercommunication the entry of back end return water pipeline, the export intercommunication of back end return water pipeline the export front side of water intake pipe, wherein be equipped with one-way check valve on the back end return water pipeline.

Has the advantages that: the invention provides an integrated structural component of a multifunctional water pump, which mainly comprises a drainage motor, an impeller, a two-way switching valve, a pump body, a filter screen, a sealing cover, a fixing screw and the like, and has double functions of drainage and circular cleaning. When the electric two-way valve is in a power-off state, the water pump pipeline is in a drainage state; when the electric two-way valve is in the power-on state, the water pump pipeline is in the circulating cleaning state. The pump body of the water pump integrated structure assembly and the electromagnetic two-way valve shell are integrally formed through injection molding, the space utilization rate is high, and meanwhile, the design cost is reduced.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

FIG. 1 is an exploded view of a water pump according to an embodiment of the present invention;

FIG. 2 is a schematic view of a pump housing according to an embodiment of the present invention;

FIG. 3 is an exploded view of the rotary two-way valve of one embodiment of the present invention;

fig. 4 is a cross-sectional view of the rotary two-way valve of the embodiment of the invention switched to the liquid outlet of the second housing;

fig. 5 is a cross-sectional view of the rotary two-way valve of the embodiment of the invention after being switched to the liquid outlet of the first housing;

fig. 6 is a schematic view of a water circuit system of a washing machine according to an embodiment of the present invention.

In the figure: 1. a housing; 11. a shell liquid inlet; 12. a first housing liquid outlet; 13. a second housing liquid outlet; 14. a cylinder bottom; 15. positioning the supporting groove; 2. a valve core; 201. a first flow passage; 202. a second flow passage; 203. a first through hole A; 204. a second through hole B; 205. a second through hole A; 206. a second through hole B; 207. a notch; 208. a positioning column; 209. a seal ring support bridge; 3. a drive assembly; 4. a seal ring; 5. a sealing gasket; 6. a pump structure; 61. a pump body housing; 62. a water discharge motor; 63. an impeller; 64. a filter screen; 65. a sealing cover; 66. a screw; 67. a pump water inlet; 68. a pump outlet 71, a water inlet pipeline; 72. a washing tub; 73. a front-section water return pipeline; 74. a back section water return pipeline; 75. a drain line; 76. a one-way check valve; 77. a spraying structure; 8. a rotary two-way valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

People have higher and higher requirements on clothes washing, and in order to meet actual requirements, a water circulation system in the conventional washing machine is more and more complex, so that a water system occupies more and more space, and pipelines are more and more. In order to simplify the water path system and reduce the cost, the water circulation system of the washing machine needs to be improved.

The invention improves the structure of the water pump, and the outlet of the water pump is provided with the rotary two-way valve integrated with the pump, so that the water path switching can be realized while the water supply is met. The system optimization of the washing machine adopting the water pump is realized by combining the improved water pump.

To further illustrate the invention, the following examples are now provided.

Example 1

As shown in fig. 1 to 5, in the present embodiment, there is provided a water pump, a rotary two-way valve is provided at an outlet of the water pump, wherein the rotary two-way valve includes: a housing 1, a valve core 2 and a drive assembly 3. The shell is in a long cylinder shape; the valve core is arranged in the shell in a rotatable manner along the axial direction of the long cylinder of the shell; the driving assembly is arranged on one side of the valve core and can drive the valve core to rotate in the shell.

To achieve a mating communication of the housing with the valve cartridge, in an alternative implementation, the rotary two-way valve is designed such that: a shell liquid inlet 11 is arranged on the upper peripheral surface of the shell, and two shell liquid outlets are arranged on the lower peripheral surface (the upper peripheral surface and the lower peripheral surface are arranged oppositely, not in a narrow up-down relation, but only for convenience of explaining the relative relation between the shell liquid inlet and the shell liquid outlet, that is, the liquid inlet and the liquid outlet are respectively arranged on the peripheral surfaces along different radial directions); two valve core liquid inlets which are communicated with the shell liquid inlet are correspondingly formed on the peripheral surface of the valve core, and two valve core liquid outlets which are communicated with the two shell liquid outlets are formed at the same time. The two valve core liquid inlets and the two valve core liquid outlets are in one-to-one correspondence and form independent flow channels. The flow channels are not communicated with each other and are only connected with the valve core liquid inlet and the valve core liquid outlet which are mutually corresponding.

When the valve core is driven by the driving assembly to rotate to different preset angles, the inlet and the outlet of one corresponding flow channel in the valve core correspond to and are communicated with the shell liquid inlet and the shell liquid outlet according to preset rules. At this moment, the preset rule refers to that at any preset angle, an independent flow channel is correspondingly arranged on the valve core, the inlet of the flow channel is communicated with the inlet of the shell, the outlet of the flow channel is communicated with the outlet of the shell, the communication mode realizes independent communication, and at this moment, if one flow channel rotates to be communicated, the other flow channel cannot be communicated with the inlet of the shell.

In some optional implementations, the two housing liquid outlets are a first housing liquid outlet 12 and a second housing liquid outlet 13, and the flow passage in the corresponding valve core includes a first flow passage 201 and a second flow passage 202, where the first flow passage and the second flow passage are not on the same plane. The first flow passage is provided with a first through hole A203 and a first through hole B204 on the circumferential surface of the valve core; the second flow passage is provided with a second through hole A205 and a second through hole B206 on the circumferential surface of the valve core; the valve core forms a notch 207 between the first through hole A and the position corresponding to the liquid inlet of the shell. When the first through hole A is communicated with the shell liquid inlet through the notch, the first through hole B is communicated with the first shell liquid outlet; when the second through hole A is communicated with the liquid inlet of the shell, the second through hole B is communicated with the liquid outlet of the second shell. Preferably, the first flow passage and the second flow passage are both opened along a radial direction of the valve core. At this time, the radial direction corresponding to each opened flow passage may be different. The valve core structure can be more regular by arranging the flow channel in the radial direction, uneven thickness of two sides of the valve core flow channel due to the offset flow channel can be avoided, damage caused by abrasion after long-time use can be prevented, and the service life of the valve core is prolonged by the structure. Preferably, an opening direction of the first flow passage and an opening direction of the second flow passage form an angle of 90 °

In some practical requirements, the water pump is required to have a larger lift, and one part of the notch is communicated with one part of the shell liquid inlet, so that the sectional area of fluid flowing into the notch from the shell liquid inlet is reduced, and the throttling effect is realized.

In order to enhance the sealing performance among all the flow channels of the valve core, a sealing ring is also arranged on the valve core of the multi-way valve. Specifically, the method comprises the following steps. The seal ring 4 further includes: first sealing washer, second sealing washer and third sealing washer. The first sealing ring is sleeved on the valve core and is positioned at one end far away from the driving assembly; the second sealing ring is sleeved on the valve core and is positioned between the first flow channel and the second flow channel; the third sealing ring is sleeved on the valve core and is positioned at one end close to the driving assembly.

To the material of case, sealing washer and casing, optional, the case material is the copper, and the casing is stainless steel or copper, and the sealing washer is silica gel. Because the sealing washer is mostly softer material, if adopt materials such as rubber, silica gel, it has certain deformation, can support the second sealing washer through being formed with the sealing washer support bridge on the breach, has avoided because the sealing washer atress warp and leads to the gap between sealed case that can not be better and the casing, causes sealed effect not good. The seal ring support bridge 209 may now be designed integrally with the valve cartridge.

In order to improve automation and reduce manpower to realize automatic control, the driving assembly comprises a motor and can drive the valve core to rotate to a preset angle in the shell to form different passages. And a sealing washer is arranged between the motor and the valve core, so that water is prevented from overflowing the three-way valve and even burning the motor.

Based on the fact that the end, far away from the driving assembly, of the shell is provided with a cylinder bottom, in some optional implementation manners, a positioning support groove 15 is formed in the inner side face of the cylinder bottom, and a positioning column 208 is arranged at the axis of one end, close to the cylinder bottom, of the valve core and assembled in the positioning support groove. Through the cooperation of this location support groove and reference column, can the spacing this case of support to do benefit to the rotation of case in the casing. Furthermore, rolling parts such as bearings can be arranged in the positioning support grooves, so that friction between the parts is reduced.

In some alternative implementations, the water pump further includes a pump body housing 61, a drain motor 62, an impeller 63, a filter screen 64, and a seal cover 65, and screws 66. The filter screen is arranged inside the pump body shell; the transmission end of the drainage motor is connected with an impeller, the impeller extends into the pump body shell, and the drainage motor is fixedly connected to one end of the pump body shell; the sealing cover is arranged at the other end of the pump body shell. The pump 6 is provided with a pump water inlet 67 and a pump water outlet 68, and the pump water outlet 68 is connected with the shell liquid inlet 11 of the rotary two-way valve 8 and can be designed into an integrated structure.

Example 2

As shown in fig. 1 to 6, a washing machine is provided in the present embodiment. The washing machine comprises a water path system, wherein any water pump is adopted in the water path system to supply water and realize the switching of a water path.

In some optional implementations, the waterway system further comprises: a water inlet pipe 71, a washing tub 72, a front stage water return pipe 73, a rear stage water return pipe 74, and a drain pipe 75. The outlet of the water inlet pipeline is communicated with the upper part of the washing barrel, the lower part of the washing barrel is communicated with the inlet of the front-section water return pipeline, the outlet of the front-section water return pipeline is communicated with the main passage port of the water pump, the first branch passage port of the water pump is communicated with the inlet of the water drainage pipeline, the second branch passage port of the water pump is communicated with the inlet of the rear-section water return pipeline, and the outlet of the rear-section water return pipeline is communicated with the front side of the outlet of the water inlet pipeline.

A one-way check valve 76 is also arranged on the back section water return pipeline; in order to pressurize the drainage pipeline, the drainage pipeline can also be designed to be bent, namely, a section of upwards arched drainage pipeline section is arranged behind the rotary two-way valve. Further, a liquid outlet of the second shell is connected with a back-end water return pipeline; the liquid outlet of the first shell is connected with a drainage pipeline. This mode has utilized breach and the function of first casing liquid outlet cooperation throttle.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A water pump, characterized in that a rotary two-way valve is provided at the outlet of the water pump, the rotary two-way valve comprising:

the shell is in a long cylinder shape;

2. The water pump of claim 1, wherein the two housing liquid outlets are a first housing liquid outlet and a second housing liquid outlet, respectively;

3. The water pump of claim 2, wherein the first and second flow passages are open in a radial direction of the valve core.

4. The water pump of claim 3, wherein a portion of the notch is in communication with a portion of the housing inlet.

5. The water pump of claim 4, wherein the rotary two-way valve further comprises: a first sealing ring, a second sealing ring and a third sealing ring,

6. The water pump according to claim 5, wherein a gasket support bridge is provided at the notch for supporting and restraining the second gasket.

7. The water pump of claim 6, wherein the drive assembly includes a motor for driving the valve cartridge to rotate within the housing to a predetermined angle to form different passages.

8. The water pump of claim 7, wherein a sealing gasket is disposed between the motor and the valve cartridge.

9. The water pump of claim 8, wherein a bottom is provided at an end of the housing remote from the drive assembly,

10. The water pump according to claim 9, wherein an opening direction of the first flow passage is 90 ° to an opening direction of the second flow passage.

11. A washing machine comprising a water circuit system, characterized in that the water circuit system employs a water pump according to any one of claims 1-10.

12. The washing machine as claimed in claim 11, wherein the waterway system further comprises: a water inlet pipeline, a washing barrel, a front section water return pipeline, a rear section water return pipeline and a water discharge pipeline,

the export of water intake pipe lets in the upper portion of washing barrel, the lower part intercommunication of washing barrel the entry of anterior segment return water pipeline, the export of anterior segment return water pipeline communicates the main way opening of water pump, a casing liquid outlet intercommunication water discharge line's entry, another casing liquid outlet intercommunication the entry of back end return water pipeline, the export intercommunication of back end return water pipeline the export front side of water intake pipe is equipped with one-way check valve on the back end return water pipeline.