CN220929526U

CN220929526U - Brushless electronic water pump for automobile

Info

Publication number: CN220929526U
Application number: CN202322756099.5U
Authority: CN
Inventors: 邵万曙; 邵作友; 窦新明; 许忠军
Original assignee: Wenzhou Day Electromechanical Technology Co ltd
Current assignee: Wenzhou Day Electromechanical Technology Co ltd
Priority date: 2023-10-15
Filing date: 2023-10-15
Publication date: 2024-05-10
Anticipated expiration: 2033-10-15

Abstract

The utility model discloses a brushless electronic water pump for an automobile, which comprises a shell, a magnetic rotor, a coil stator, a supporting structure, epoxy resin and a circuit board, wherein the shell forms a sealed first cavity and a sealed second cavity, and a water inlet and a water outlet which are communicated with the first cavity are also formed in the shell; the magnetic rotor is arranged in the first cavity, and blades for guiding water flow from the water inlet to the water outlet are arranged on the magnetic rotor; the coil stator is arranged in the second cavity; the support structure is connected to the coil stator and used for fixing the coil stator at a preset position in the second cavity; the epoxy resin is filled in the second cavity; the circuit board is connected to the coil stator.

Description

Brushless electronic water pump for automobile

Technical Field

The application belongs to the technical field of automobile electronic water pumps, and particularly relates to a brushless electronic water pump for an automobile.

Background

The automobile water pump is an important component part of an engine cooling system, and is responsible for driving cooling water to circulate, absorbing redundant heat of an engine, transmitting the redundant heat to the air through a radiator device, and avoiding engine rejection caused by the reduction of lubricating capacity of engine oil, serious wear of parts in the engine, and the occurrence of faults such as engine cylinder pulling and the like due to the overhigh temperature of the engine.

In a conventional automotive water pump, a stator and a controller are assembled in a sealed plastic housing, and the stator and the controller are fixed to the housing by only one screw. When the environment is severe and the vibration is large, the stator is easy to loosen, the stator is moved for a long time, the stator shakes seriously and rubs with the shell, the shell is broken, cooling liquid is led to permeate into a cavity provided with the stator and the controller, the service lives of the stator and the controller are shortened after the cooling liquid permeates, and the controller is short-circuited when the cooling liquid is serious, so that the water pump is directly scrapped. Therefore, there is a need to solve the above-mentioned technical problems.

Disclosure of Invention

The embodiment of the application aims to provide a brushless electronic water pump for an automobile, which aims to solve the technical problem that a stator is easy to loosen in the prior art.

In order to achieve the above purpose, the application adopts the following technical scheme: provided is a brushless electronic water pump for an automobile, including:

The shell is provided with a water inlet and a water outlet which are communicated with the first cavity;

A magnetic rotor arranged in the first cavity, and provided with blades for guiding water flow from the water inlet to the water outlet;

A coil stator disposed within the second cavity;

The support structure is connected to the coil stator and used for enabling the coil stator to be fixed at a preset position in the second cavity;

epoxy resin filled in the second cavity;

and the circuit board is connected with the coil stator.

Optionally, the support structure includes a post connected to the housing and a compression member detachably connected to the post;

The compressing piece is matched with the convex column and clamps the coil stator between the compressing piece and the convex column.

Optionally, the pressing piece is provided with reinforcing ribs distributed in an annular mode.

Optionally, the support structure further comprises a bracket;

The support is matched with the reinforcing ribs and clamps the coil stator between the support and the reinforcing ribs.

Optionally, the supporting structure further comprises a compression bolt, and the compression bolt penetrates through the circuit board and is sequentially connected with the compression piece and the convex column in a threaded mode.

Optionally, the supporting structure further includes an adjusting pad, which is an elastomer and is sandwiched between the circuit board and the pressing member.

Optionally, the circuit board is provided with a vent hole communicated with the second cavity.

Optionally, the casing includes a casing body and a volute cover detachably connected to the casing body;

the volute cover is used for forming the water inlet and the water outlet and is also used for being matched with the shell body to form the first cavity.

Optionally, the housing further comprises a pump cover;

the pump cover is detachably connected to the shell body and is matched with the shell body to form a third cavity;

The circuit board is accommodated in the third cavity.

Optionally, the brushless electronic water pump for automobile further comprises a dust cover connected to the housing and located at the water inlet

The brushless electronic water pump for the automobile has the beneficial effects that: compared with the prior art, the shell forms the sealed first cavity and the second cavity, the magnetic rotor is arranged in the first cavity, the coil stator is arranged in the second cavity, the coil stator is fixed at a preset position in the second cavity through the supporting structure on one hand, and epoxy resin for fixing the position of the coil stator is filled in the second cavity on the other hand, through the structure, the installation stability of the coil stator is remarkably improved, the service life of the electronic water pump is remarkably prolonged, and the electronic water pump is far better than the prior art.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a brushless electronic water pump for an automobile according to an embodiment of the present application.

Wherein, each reference sign in the figure: 100. a housing; 101. a first cavity; 102. a second cavity; 103. a housing body; 104. a volute cover; 105. a pump cover; 106. a third cavity; 111. a water inlet; 112. a water outlet; 200. a magnetic rotor; 201. a blade; 300. a coil stator; 401. a convex column; 402. a pressing member; 403. a bracket; 404. a compression bolt; 405. an adjustment pad; 421. reinforcing ribs; 500. a circuit board; 501. a vent hole; 600. a dust cover.

Description of the embodiments

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1, an embodiment of the present application provides a brushless electronic water pump for an automobile. The brushless electronic water pump for automobiles comprises a shell 100, a magnetic rotor 200, a coil stator 300, epoxy resin and a circuit board 500, wherein the shell 100 forms a sealed first cavity 101 and a sealed second cavity 102, and a water inlet 111 and a water outlet 112 which are communicated with the first cavity 101 are also arranged on the shell 100; the magnetic rotor 200 is installed in the first cavity 101, and blades 201 for guiding water flow from the water inlet 111 to the water outlet 112 are arranged on the magnetic rotor 200; the coil stator 300 is disposed within the second cavity 102; the support structure is connected to the coil stator 300 and is used for fixing the coil stator 300 at a preset position in the second cavity 102; the epoxy resin is filled in the second cavity 102; the wiring board 500 is connected to the coil stator 300.

The principle of the present embodiment is that when the coil stator 300 is energized, a varying magnetic field generated by the energizing of the coil stator 300 penetrates through the magnetic rotor 200 having magnetism to drive the magnetic rotor 200 to rotate, and when the magnetic rotor 200 rotates, water can be thrown out from the water outlet 112 by centrifugal force generated by the blades 201, so that negative pressure is generated at the water inlet 111 to suck water, i.e. water flow is guided from the water inlet 111 to the water outlet 112. In this embodiment, the magnetic rotor 200 and the coil stator 300 are respectively disposed in two independent cavities, so that the two cavities can be prevented from being affected by each other in the installation process, and water at the position of the magnetic rotor 200 is effectively prevented from leaking into the cavity where the coil stator 300 is located. In addition, the support structure may maintain the coil stator 300 at a predetermined position within the second cavity 102, and the epoxy resin may be cured after filling the second cavity 102, which may further maintain the coil stator 300 at a predetermined position. With the above structure, the installation stability of the coil stator 300 is significantly increased, and thus the service life of the electronic water pump is significantly increased, which is far superior to the prior art.

Referring to fig. 1, in another embodiment of the present application, the supporting structure includes a boss 401 connected to the housing 100 and a pressing member 402 detachably connected to the boss 401; the pressing member 402 is fitted to the boss 401 and clamps the coil stator 300 between the pressing member 402 and the boss 401. According to the above structure provided in the present embodiment, the pressing member 402 forms a clamp for the coil stator 300 in cooperation with the boss 401, which can further fix the coil stator 300 and increase the mounting stability of the coil stator 300.

Referring to fig. 1, in another embodiment of the present application, the pressing member 402 is provided with reinforcing ribs 421 distributed in a ring shape. According to the above structure provided in the present embodiment, the reinforcing ribs 421 can be used to effectively increase the structural strength of the pressing member 402, so that the pressing member 402 is not damaged in the process of clamping the coil stator 300 by the engaging with the boss 401, and therefore, the pressing member 402 and the boss 401 can form a relatively large pressing force on the coil stator 300, which is beneficial to increasing the mounting stability of the coil stator 300.

Referring to fig. 1, in another embodiment of the present application, based on the embodiment provided with the reinforcing ribs 421, the support structure further includes a bracket 403; the bracket 403 is fitted to the reinforcing rib 421 and clamps the coil stator 300 between the bracket 403 and the reinforcing rib 421. According to the above structure provided in the present embodiment, the bracket 403 can be fitted to the reinforcing bar 421 to form a clamp for the coil stator 300, can form further fixation for the coil stator 300, and increases the mounting stability of the coil stator 300.

Referring to fig. 1, in another embodiment of the present application, the supporting structure further includes a compression bolt 404, and the compression bolt 404 passes through the circuit board 500 and is sequentially screwed to the compression member 402 and the boss 401. According to the above structure provided in this embodiment, the compression bolt 404 may further maintain stable connection between the compression member 402 and the boss 401, and may also be used to adjust the distance therebetween, so that the clamping force of the compression member 402 and the boss 401 on the coil stator 300 may be adjusted, and the technical feature of flexible use is provided.

Referring to fig. 1, in another embodiment of the present application, the supporting structure further includes an adjusting pad 405, wherein the adjusting pad 405 is made of an elastomer and is sandwiched between the circuit board 500 and the pressing member 402. According to the above structure provided in the present embodiment, the adjusting pad 405 can prevent the circuit board 500 and the pressing member 402 from being damaged due to excessive interaction force, and can further tightly connect the circuit board 500 and the pressing member 402 to ensure good connection stability.

Referring to fig. 1, in another embodiment of the present application, a circuit board 500 has a vent 501 in communication with the second cavity 102. According to the above structure provided in the present embodiment, the vent 501 can be used for filling epoxy resin on the one hand and exhausting air in the second chamber 102 on the other hand.

Referring to fig. 1, in another embodiment of the present application, a casing 100 includes a casing body 103 and a volute 104 detachably connected to the casing body 103; the volute 104 forms a water inlet 111 and a water outlet 112, and the volute 104 is further configured to cooperate with the housing body 103 to form the first cavity 101. In this embodiment, the first cavity 101 can be conveniently opened and the magnetic rotor 200 in the first cavity 101 can be maintained or replaced by the worm cover 104 detachably connected to the casing body 103, so that the use cost is effectively reduced.

Referring to fig. 1, in another embodiment of the present application, the housing 100 further includes a pump cover 105; the pump cover 105 is detachably connected to the housing body 103 and forms a third cavity 106 in cooperation with the housing body 103; the circuit board 500 is accommodated in the third cavity 106. In this embodiment, the pump cover 105 detachably connected to the housing body 103 can conveniently open the third cavity 106 to repair or replace the circuit board 500, thereby effectively reducing the use cost. In addition, the third cavity 106 formed by the pump cover 105 in the present embodiment in combination with the housing body 103 may also be used for heat dissipation of the circuit board 500, so as to avoid the excessive temperature on the circuit board 500.

Referring to fig. 1, in another embodiment of the present application, the brushless electronic water pump for a vehicle further includes a dust cover 600, where the dust cover 600 is connected to the housing 100 and is located at the water inlet 111, so as to effectively prevent sundries from entering the area of the blade 201 during storage or transportation.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims

1. A brushless electronic water pump for an automobile, comprising:

The shell (100) forms a first cavity (101) and a second cavity (102) which are sealed, and a water inlet (111) and a water outlet (112) which are communicated with the first cavity (101) are also arranged on the shell (100);

A magnetic rotor (200) mounted in the first cavity (101), the magnetic rotor (200) being provided with blades (201) for guiding a water flow from the water inlet (111) to the water outlet (112);

a coil stator (300) disposed within the second cavity (102);

A support structure connected to the coil stator (300) and adapted to fix the coil stator (300) in a preset position within the second cavity (102);

an epoxy resin filled in the second cavity (102);

And a wiring board (500) connected to the coil stator (300).

2. The brushless electronic water pump for automobiles as claimed in claim 1, wherein:

The support structure comprises a convex column (401) connected with the shell (100) and a pressing piece (402) detachably connected with the convex column (401);

The pressing member (402) is fitted to the boss (401) and clamps the coil stator (300) between the pressing member (402) and the boss (401).

3. The brushless electronic water pump for automobiles as claimed in claim 2, wherein:

the pressing piece (402) is provided with reinforcing ribs (421) which are distributed in an annular mode.

4. A brushless electronic water pump for automobiles as defined in claim 3, wherein:

the support structure further comprises a bracket (403);

The bracket (403) is fitted to the reinforcing rib (421) and clamps the coil stator (300) between the bracket (403) and the reinforcing rib (421).

5. The brushless electronic water pump for automobiles as claimed in claim 2, wherein:

The supporting structure further comprises a compression bolt (404), and the compression bolt (404) penetrates through the circuit board (500) and is sequentially connected with the compression piece (402) and the convex column (401) in a threaded mode.

6. The brushless electronic water pump for automobiles as claimed in claim 5, wherein:

The support structure further comprises an adjustment pad (405), the adjustment pad (405) being an elastomer and being sandwiched between the circuit board (500) and the compression member (402).

7. The brushless electronic water pump for automobiles as claimed in claim 1, wherein:

The circuit board (500) is provided with a vent hole (501) communicated with the second cavity (102).

8. The brushless electronic water pump for automobiles as claimed in claim 1, wherein:

the shell (100) comprises a shell body (103) and a volute cover (104) detachably connected to the shell body (103);

The volute cover (104) forms the water inlet (111) and the water outlet (112), and the volute cover (104) is also used for being matched with the shell body (103) to form the first cavity (101).

9. The brushless electronic water pump for automobiles as claimed in claim 8, wherein:

The housing (100) further comprises a pump cover (105);

The pump cover (105) is detachably connected to the shell body (103) and forms a third cavity (106) in cooperation with the shell body (103);

The circuit board (500) is accommodated in the third cavity (106).

10. The brushless electronic water pump for automobiles as claimed in claim 1, wherein:

The brushless electronic water pump for the automobile further comprises a dust cover (600), and the dust cover (600) is connected to the shell (100) and located at the water inlet (111).