Electric pump

An electric pump and component technology, applied in the field of electric pumps, can solve problems such as damage to the insulating paint layer, and achieve the effect of reducing extrusion

Pending Publication Date: 2021-09-17
ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The electric pump includes a stator assembly, the stator assembly includes a stator core, an insulating frame and a winding, and the winding is wound on the insulating frame. During use, the plastic part of the injection molded part may expand and contract due to temperature, and the plastic part that expands and contracts may squeeze the enameled wire in the winding, which may cause the insulating varnish layer of the enameled wire in the winding to Damaged by mutual crushing force

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0022] The electric pump in the following embodiments can provide flow power for the working medium of the automobile thermal management system. The working medium can be 50% ethylene glycol aqueous solution or clear water, and of course the working medium can also be other substances.

[0023] see figure 1 , the electric pump 100 includes a pump casing, a rotor assembly 1, a stator assembly 2, a pump shaft 3 and an electric control board assembly 4, the rotor assembly 1 is sleeved on the outer periphery of the pump shaft 3; the pump casing can form a pump inner cavity, and the electric pump 100 also includes an isolation part 7, the isolation part 7 divides the inner cavity of the pump into a first cavity 80 and a second cavity 90, the first cavity 80 can flow through the working medium, the second cavity 90 does not directly contact the working med...

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Abstract

An electric pump comprises a stator assembly, and the stator assembly comprises a stator iron core, an insulating frame and at least three windings; the insulating frame wraps at least part of the surface of the stator iron core, and the windings are wound around the insulating frame; a first injection molding part is formed at least by taking the stator assembly as an insert through injection molding, the first injection molding part comprises a hole part, and the hole part extends in the axial direction of the first injection molding part; the cross section of the stator assembly is made in the direction perpendicular to the central axis of the stator assembly, and at least one hole part is formed in the cross section of the stator assembly and between every two adjacent windings in the circumferential direction of the stator assembly; therefore, the extrusion of the plastic part of the injection-molded part on the winding is reduced.

Description

technical field [0001] The invention relates to a fluid pump, in particular to an electric pump. Background technique [0002] The electric pump includes a stator assembly, the stator assembly includes a stator core, an insulating frame and a winding, and the winding is wound on the insulating frame. During use, the plastic part of the injection molded part may expand and contract due to temperature, and the plastic part that expands and contracts may squeeze the enameled wire in the winding, which may cause the insulating varnish layer of the enameled wire in the winding to Damaged by compression forces against each other. Contents of the invention [0003] The purpose of the present application is to provide an electric pump, which is beneficial to reduce the extrusion of the winding by the plastic part of the injection molded part during and / or after injection and / or during use of the injection molded part. [0004] In order to achieve the above purpose, one embodimen...

Claims

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Application Information

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IPC IPC(8): H02K1/22H02K3/34H02K3/38H02K3/50F04B17/03
CPCH02K1/22H02K3/345H02K3/38H02K3/50F04B17/03
Inventor 不公告发明人
Owner ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
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