CN212177493U - Water pump and vehicle - Google Patents

Abstract

The utility model provides a water pump and vehicle relates to the vehicle cooling system field. The water pump is including wearing to be equipped with the casing of pivot to and set up and establish at the casing inside and establish at the epaxial impeller of commentaries on classics, wherein, the impeller includes that the movable cover establishes at the epaxial carousel of commentaries on classics, along the circumference distribution of carousel a plurality of blades of one side of carousel, and set up the connection pad in one side of keeping away from the carousel of a plurality of blades, in order to make when the impeller rotates to throw away liquid from the blade and form the reaction force along the radial direction of pivot, and then prevent the axial motion of impeller along the pivot. The utility model provides a connection pad can be so that high-speed rotatory liquid forms along the radial direction's of pivot reaction force, avoids producing along pivot axial direction's effort, has reduced the axial float of impeller, has alleviateed the wearing and tearing of thrust gasket and impeller, has greatly prolonged the working life of water pump.

Description

Water pump and vehicle

Technical Field

The utility model relates to a vehicle cooling system field especially relates to a water pump and vehicle.

Background

Along with the attention of the country to energy conservation and emission reduction of vehicles, the country increasingly increases the support force of new energy vehicles, more and more pure electric vehicles are put into the market, the heat dissipation of an electronic controller and a motor needs to be cooled, a traditional mechanical water pump is inconvenient to be used in the pure electric vehicles, and a plurality of new energy vehicles adopt the electronic water pump as a power source for cooling liquid circulation. The electronic water pump has the advantages that the control on the rotating speed is flexible and convenient, the rotating speed and the flow can be accurately controlled according to needs, so that the aims of reducing energy consumption and increasing the endurance mileage are fulfilled, and therefore, the electronic water pump for the automobile is widely applied, and has a very good market prospect.

When the electronic water pump operates, a layer of liquid film can be formed between the bearing end face of the water pump impeller rotating at a high speed and the thrust washer, and the liquid film can avoid the direct contact between the thrust washer and the bearing to cause abrasion and influence the service life of the electronic water pump. When the water pump runs, the impeller of the water pump axially moves due to the impact force of the antifreeze and the vacuum caused by centrifugal force, a liquid film between the end surface of the bearing and the thrust washer is damaged, the impeller of the water pump rotating at high speed and the thrust washer are directly contacted and abraded, vibration noise of the electronic water pump is increased, the service life of the electronic water pump is shortened, even the water pump is blocked, the cooling liquid cannot normally circulate, the high temperature of a motor is caused, and the normal running of a vehicle is influenced.

The existing measures for solving the problems of abrasion of a water pump rotor bearing and a thrust washer mainly include the adoption of reliable bearing materials, the improvement of the surface precision of the thrust washer, the improvement of the cleaning degree of an anti-freezing solution and the like to reduce abrasion, but the problems of the cause of water pump impeller movement are not fundamentally solved, the cost is very high, and the effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an object of the first aspect is to provide a water pump, solve the technical problem that prior art normal water pump impeller axial float leads to impeller and thrust washer wearing and tearing.

The utility model discloses a further purpose of first aspect further prevents water pump impeller axial float.

The utility model discloses the purpose of second aspect provides a vehicle.

According to the utility model discloses an aim of first aspect, the utility model provides a water pump, including wearing to be equipped with the casing of pivot, and set up the casing is inside and the cover is established change epaxial impeller, wherein, the impeller includes:

the rotating disc is rotatably sleeved on the rotating shaft;

the blades are distributed on one side of the rotary disc along the circumferential direction of the rotary disc;

the annular connecting disc is arranged on one side, far away from the rotating disc, of the blades, so that the blades are clamped between the rotating disc and the connecting disc, and therefore when the impeller rotates, liquid is thrown out of the blades to form reaction force along the radial direction of the rotating shaft, and the impeller is prevented from moving along the axial direction of the rotating shaft.

Optionally, the outer diameter of the connecting disc is the same size as the diameter of the turntable.

Optionally, the connecting disc and the blade are integrally formed.

Optionally, a bearing is disposed between the turntable and the rotating shaft.

Optionally, the bearing is fixedly connected with the turntable.

Optionally, a plurality of through holes are formed in the turntable, and the through holes are arranged along the circumferential direction of the turntable.

Optionally, a plurality of the through holes are arranged concentrically and annularly.

Optionally, the number of the plurality of blades is seven, and the seven blades are uniformly arranged along the circumferential direction of the rotating disk.

Optionally, the number of the through holes is seven, and the seven through holes are arranged at intervals with the seven blades.

According to the utility model discloses the purpose of second aspect, the utility model also provides a vehicle, its vehicle mounting has foretell water pump.

The utility model discloses a wear to be equipped with the casing of pivot to and set up and establish at the casing inside and establish at the epaxial impeller of commentaries on classics, wherein, the impeller is including rotationally establishing at the epaxial carousel of commentaries on classics, a plurality of blades of one side at the carousel are distributed to circumference along the carousel, and set up the annular connection pad that is in one side of keeping away from the carousel of a plurality of blades, so that a plurality of blade centre grippings are between carousel and connection pad, thereby make when impeller rotates to throw away liquid from the blade and form the reaction force along pivot radial direction, and then prevent that the impeller from along the axial motion of pivot. The utility model provides a connection pad can be so that high-speed rotatory liquid forms along the radial direction's of pivot reaction force, avoids producing along pivot axial direction's effort, has reduced the axial float of impeller, has alleviateed the wearing and tearing of thrust gasket and impeller, has greatly prolonged the working life of water pump.

Further, the utility model discloses a plurality of through holes have been seted up on the well carousel, and a plurality of through holes are arranged along the circumference of carousel. When the impeller rotates, the cooling liquid in the shell flows through the through holes, namely flows from a high-pressure area to a low-pressure area, so that the pressure difference on two sides of the impeller is reduced, and finally, the pressure balance on two sides of the impeller is achieved, and the axial movement of the impeller is further reduced.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic block diagram of a water pump according to one embodiment of the present invention;

FIG. 2 is a schematic front view of an impeller of the water pump shown in FIG. 1;

FIG. 3 is a schematic side view of an impeller of the water pump shown in FIG. 1;

fig. 4 is a schematic structural view of a housing of the water pump shown in fig. 1.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Fig. 1 is a schematic block diagram of a water pump 100 according to an embodiment of the present invention. As shown in fig. 1, in a specific embodiment, the water pump 100 may generally include a housing 1 and an impeller 3, a rotating shaft 2 is disposed through the housing 1 in an axial direction, the impeller 3 is disposed inside the housing 1 and sleeved on the rotating shaft 2, wherein the impeller 3 includes a rotating disc 31 movably sleeved on the rotating shaft 2, a plurality of blades 32 distributed on one side of the rotating disc 31 in a circumferential direction of the rotating disc 31, and the impeller 3 further includes a connecting disc 33 in an annular shape disposed on one side of the plurality of blades 32 away from the rotating disc 31, so as to enable liquid thrown from the blades 32 to form a reaction force in a radial direction of the rotating shaft 2 when the impeller 3 rotates, thereby preventing the impeller 3 from moving in the axial direction of the rotating shaft 2. Here, the liquid may be an antifreeze or a coolant.

The utility model provides a connection pad 33 can be so that high-speed rotatory liquid forms along 2 radial direction's of pivot reaction force, avoids producing along 2 axial direction's of pivot effort, has reduced impeller 3's axial float, has alleviateed thrust gasket and impeller 3's wearing and tearing, has greatly prolonged water pump 100's life.

Further, a bearing 35 is arranged between the turntable 31 and the rotating shaft 2, and the bearing 35 is fixedly connected with the turntable 31.

When the water pump 100 is in operation, the impeller 3 of the water pump 100 axially moves to break a liquid film between the end surface of the bearing 35 and the thrust washer 4, so that the end surface of the bearing 35 and the thrust washer 4 generate contact friction to generate abrasion. Therefore, the utility model discloses a set up connection pad 33 and can be so that high-speed rotatory liquid perpendicular to pivot 2 avoids producing axial effort to impeller 3's motion all around, has reduced impeller 3's axial float, avoids 3 axial floats of impeller to the broken ring of liquid film, has alleviateed thrust gasket 4 and bearing 35's wearing and tearing.

Furthermore, the utility model discloses under the condition of the size and the material that do not change bearing 35 and thrust washer 4, avoided the improvement by a wide margin of cost of manufacture, fine reaching the balance between benefit and the cost.

Specifically, the casing 1 includes a volute casing and a rotor casing which are connected with each other, a water inlet and a water outlet are arranged on the volute casing, the rotating shaft 2 sequentially penetrates through the rotor casing and the volute casing, and the impeller 3 can freely rotate on the rotating shaft 2 and can axially move.

Fig. 2 is a schematic front view of the impeller 3 of the water pump 100 shown in fig. 1, fig. 3 is a schematic side view of the impeller 3 of the water pump 100 shown in fig. 1, and fig. 4 is a schematic structural view of the housing 1 of the water pump 100 shown in fig. 1. As shown in fig. 2-4 and referring to fig. 1, in another embodiment, the rotating disc 31 is provided with a plurality of through holes 34, and the through holes 34 are arranged along the circumferential direction of the rotating disc 31. When the impeller 3 rotates, the cooling liquid in the casing 1 flows through the through holes 34, i.e., flows from a high-pressure region to a low-pressure region, so that the pressure difference between the two sides of the impeller 3 is reduced, and finally, the pressure balance between the two sides of the impeller 3 is achieved, thereby further reducing the axial movement of the impeller 3, and enabling the water pump 100 to operate more stably. In addition, the present invention can prevent the impeller 3 from shaking when rotating by arranging the through holes 34 uniformly, thereby reducing vibration and noise generated when the water pump 100 is operated, and further improving the comfort of riding a vehicle.

Further, the plurality of through holes 34 are arranged in a concentric ring shape, so that the liquid in the casing 1 can rapidly flow between the two sides of the impeller 3, and the pressure on the two sides of the impeller 3 can be balanced as soon as possible.

In yet another embodiment, the number of the plurality of blades 32 is seven, and the seven blades 32 are uniformly arranged in the circumferential direction of the rotating disk 31. The plurality of through holes 34 is also seven, and the seven through holes 34 are spaced apart from the seven blades 32.

Specifically, the outer diameter of the connecting disc 33 is the same as the diameter of the rotating disc 31, and the connecting disc 33 and the blades 32 are integrally formed. Thus, as can be seen in fig. 2, the connecting disc 33 is connected to only a part of the end of the vane 32, and the inner diameter of the connecting disc 33 is slightly smaller than the outer diameter, so that a large amount of liquid can be sucked from the center of the connecting disc 33 when the impeller 3 rotates.

The utility model also provides a vehicle, its water pump 100 of installing in above-mentioned any one embodiment to water pump 100, and it is unnecessary here a repeated description.

The utility model provides a connection pad 33 can make high-speed rotatory liquid perpendicularly disperse all around, and the counter force perpendicular to pivot 2 of liquid, the 3 epaxial making a concerted effort of impeller reach the balance, can not produce the axial effort. The edges of the vanes 32 on the impeller 3 generate high pressure due to centrifugal force and the pressure increases from the center of the impeller 3 closer to the edges, and if this connecting disc 33 is not present, the high pressure of the liquid acts on the volute, and the reaction force of the liquid causes axial movement of the impeller 3, thus breaking the liquid film. When the impeller 3 rotates at a high speed, a pressure difference is generated between the front and the back of the rotating disc 31 of the impeller 3, so that the impeller 3 moves axially on the rotating shaft 2 to impact the thrust washer 4, a liquid film between the thrust washer 4 and the end face of the bearing 35 is damaged, the abrasion of the thrust washer 4 and the bearing 35 is accelerated, and the service life of the water pump 100 is affected. And through the utility model discloses in the through hole 34 that sets up, liquid can be followed through hole 34 and by the regional motion of high pressure to the low pressure region, finally reaches the balance of 3 two side pressures of impeller, and impeller 3 moves more steadily, has reduced 3 axial float of impeller to very big extension water pump 100's working life.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. The utility model provides a water pump, its characterized in that, is including wearing to be equipped with casing (1) of pivot, and set up casing (1) is inside and the cover is established impeller (3) on pivot (2), wherein, impeller (3) include:

the rotating disc (31) is rotatably sleeved on the rotating shaft (2);

a plurality of blades (32) distributed on one side of the rotating disk (31) in the circumferential direction of the rotating disk (31);

the annular connecting disc (33) is arranged on one side, far away from the rotating disc (31), of the blades (32), so that the blades (32) are clamped between the rotating disc (31) and the connecting disc (33), when the impeller (3) rotates, liquid is thrown out of the blades (32) to form reaction force along the radial direction of the rotating shaft (2), and therefore the impeller (3) is prevented from moving along the axial direction of the rotating shaft (2).

2. The water pump of claim 1,

the outer diameter of the connecting disc (33) is consistent with the diameter of the rotary disc (31).

3. The water pump of claim 2,

the connecting disc (33) and the blades (32) are integrally formed.

4. The water pump of claim 1,

and a bearing (35) is arranged between the turntable (31) and the rotating shaft (2).

5. The water pump of claim 4,

the bearing (35) is fixedly connected with the turntable (31).

6. The water pump of claim 1,

a plurality of through holes (34) are formed in the rotary disc (31), and the through holes (34) are distributed along the circumferential direction of the rotary disc (31).

7. The water pump of claim 6,

the through holes (34) are arranged concentrically and annularly.

8. The water pump of claim 6,

the number of the plurality of blades (32) is seven, and the seven blades (32) are uniformly arranged along the circumferential direction of the rotating disk (31).

9. The water pump of claim 8,

the number of the through holes (34) is seven, and the seven through holes (34) are arranged at intervals with the seven blades (32).

10. A vehicle, characterized in that the vehicle is equipped with a water pump according to any one of claims 1-9.

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