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Electronic water pump and vehicle

A technology for electronic water pumps and pump casings, applied in pumps, pump devices, pump components, etc., can solve problems such as poor cooling effect and small flow rate, and achieve the effects of improving reliability, saving installation space, and simplifying product structure

Inactive Publication Date: 2019-04-16
GUANGDONG WELLING AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flow of coolant into the motor is relatively small, and the cooling effect is relatively poor.

Method used

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  • Electronic water pump and vehicle
  • Electronic water pump and vehicle
  • Electronic water pump and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Such as image 3 As shown, the casing assembly includes a pump casing assembly and a casing stator assembly 10 connected to the pump casing assembly. The pump casing assembly is provided with a water inlet 41 and a water outlet 51. The casing stator assembly 10 defines a first installation cavity 11, At least part of the water circulation channel and the second installation cavity 12; the impeller rotor assembly 30 of the electronic water pump can be rotatably installed in the casing assembly, and at least partly located in the second installation cavity 12, the casing stator assembly 10 includes the impeller rotor assembly 30 Isolated stator assembly.

[0078] Splitting the casing assembly into the pump casing assembly and the casing stator assembly 10 not only simplifies the structure of each part of the casing assembly, facilitates processing and molding, but also facilitates the assembly of components such as the electric control board 20 in the casing assembly; the...

Embodiment 2

[0115] The difference from Embodiment 1 is that: on the basis of Embodiment 1, further, the first installation chamber 11 includes a cavity with one end open and a cover plate 60 adapted to the open end of the cavity, such as figure 1 and image 3 As shown, the cover plate 60 can cover the open end of the cavity to package the electric control board 20 in the first installation cavity 11 .

[0116] The first installation cavity 11 includes a cavity body and a cover plate 60, one end of the cavity body is open, which is convenient for installing the electric control board 20, and the cover plate 60 is adapted to the open end of the cavity body, thereby being able to cover the open end of the cavity body, It is ensured that the electric control board 20 can be packaged in the first installation cavity 11 , so as to prevent the electric control board 20 from directly contacting the coolant, and ensure the reliability of the electric control board 20 . Further, for the solution i...

Embodiment 3

[0128] The difference with the second embodiment is that: on the basis of the second embodiment, further, the electric control board 20 is clamped in the first installation cavity 11, as image 3 shown.

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Abstract

The invention provides an electronic water pump and a vehicle. The electronic water pump comprises a machine shell assembly and an electric control board, wherein a water circulation channel and a first installation cavity are formed in the machine shell assembly in a limiting mode; the electric control board is mounted in the first installation cavity in a sealing mode; a water inlet and a wateroutlet of the electronic water pump are separately formed in the two ends of the water circulation channel, and at least part of the outer wall surface of the first installation cavity forms part of the inner wall surface of the water circulation channel; and a stator and a machine shell are integratedly injection molded. According to the electronic water pump, an internal flow path of the electronic water pump is improved, the flow rate of a coolant for cooling the electric control board is significantly increased, and the cooling effect on the electric control board is significantly improved; compared with additionally arranging large heat sinks to the electric control board, the internal flow path of the electronic water pump is improved, reducing the product volume is facilitated, theinstallation space is saved, and the product structure is simplified; and the integratedly injection molding of the stator and the machine shell plays the role of stator self-sealing, an internal sealing system of a motor is omitted, and the problem of stator heating is effectively solved.

Description

technical field [0001] The invention relates to the technical field of water pumps, in particular to an electronic water pump and a vehicle including the electronic water pump. Background technique [0002] At present, in view of the general environment of energy frugality, most modern high-end cars and electric vehicles replace the original mechanical water pumps with electronic cooling water pumps. Compared with traditional water pumps, electronic cooling water pumps have the advantages of precise control and higher efficiency. Generally, brushless DC motors are used, which have the characteristics of low voltage and high current. However, high current often makes the electrical components on the electric control board seriously heated, which affects the performance of the electric control board. For this reason, the traditional electronic water pump places the electric control board at the rear end cover of the motor, introduces the coolant into the motor, and uses the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D29/40F04D29/58
CPCF04D13/0606F04D29/406F04D29/5806F04D29/5813
Inventor 王东葛笑陈华江
Owner GUANGDONG WELLING AUTO PARTS CO LTD
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