Electronic water pump
An electronic water pump and pump housing technology, applied in the direction of pumps, pump devices, pump components, etc., can solve the problems of large heating of the stator coil, the effect of magnetic resistance on the efficiency of the electronic water pump, and the large gap between the stator coil and the rotor assembly.
Pending Publication Date: 2021-05-25
DUNAN AUTOMOTIVE THERMAL MANAGEMENT TECH CO LTD
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Problems solved by technology
In the existing electronic water pump, in order to prevent the short circuit of the electronic coil caused by the contact between the medium and the stator coil, an isolation sleeve is set to divide the cavity in the electronic water pump into a dry cavity and a wet cavity, because the isolation sleeve needs to be vacated between the stator coil and the rotor assembly position, resulting in a large gap between the stator coil and the rotor assembly, resulting in a large reluctance that affects the efficiency of the electronic water pump, and the stator coil of the electronic water pump also generates a large amount of heat, so it can only transfer heat through the pump casing if it is installed in a dry cavity For heat dissipation, this does not dissipate heat very well, reducing the life of the electronic water pump
Method used
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[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0022] As shown in the accompanying drawings, an embodiment of the present invention provides an electronic water pump, including: a pump housing 10, the pump housing 10 has a water inlet and a water outlet; a stator assembly 20, arranged in the pump housing 10, the stator assembly 20 Includin...
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The invention provides an electronic water pump. The electronic water pump comprises a pump shell, a stator assembly, a rotor assembly and an impeller, wherein a stator coil of the stator assembly is wound on a stator iron core; a plastic coating structure wraps the outer surfaces of the stator iron core and the stator coil, and is provided with water passing holes for water passing; one part of the rotor assembly is arranged in the stator iron core in a penetrating manner; the impeller is arranged in the pump shell, and the end part of the rotor assembly is in driving connection with the impeller. By adopting the scheme, the stator core and the stator coil are sealed by the plastic coating structure, so that the problem of short circuit of an electronic coil can be solved without the need of arranging an isolation sleeve between the stator coil and the rotor assembly; and the gap between the stator coil and the rotor assembly can be reduced, so that the magnetic resistance is reduced, and the efficiency of the electronic water pump is improved. In addition, the water passing holes are formed in the stator assembly, water can be introduced to cool the stator assembly, and the heat dissipation effect of the electronic water pump is improved, so that the service life of the electronic water pump can be prolonged.
Description
technical field [0001] The invention relates to the technical field of electronic water pumps, in particular to an electronic water pump. Background technique [0002] As a centrifugal pump, the electronic water pump drives the impeller to rotate through the rotor assembly, sucks the fluid from the water inlet and pressurizes it, and then discharges it from the water outlet. In the existing electronic water pump, in order to prevent the short circuit of the electronic coil caused by the contact between the medium and the stator coil, an isolation sleeve is set to divide the cavity in the electronic water pump into a dry cavity and a wet cavity, because the isolation sleeve needs to be vacated between the stator coil and the rotor assembly position, resulting in a large gap between the stator coil and the rotor assembly, resulting in a large reluctance that affects the efficiency of the electronic water pump, and the stator coil of the electronic water pump also generates a l...
Claims
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IPC IPC(8): F04D13/06F04D29/24F04D29/58H02K7/14H02K9/19
CPCF04D13/06F04D29/24F04D29/5806F04D29/586H02K9/19H02K7/14
Inventor 王俊杰周小伟
Owner DUNAN AUTOMOTIVE THERMAL MANAGEMENT TECH CO LTD