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Patent Searching and Data


Title:
ELECTRIC PUMP
Document Type and Number:
WIPO Patent Application WO/2019/037531
Kind Code:
A1
Abstract:
An electric pump (100), comprising: a pump housing, a rotor assembly (3), a stator assembly (4), an isolation sleeve (7), a heat dissipation plate (8), and an electric control board (9). The pump housing defines a pump inner chamber; the pump inner chamber is partitioned into a first cavity (30) and a second cavity (40) by the isolation sleeve (7); the rotor assembly (3) is disposed in the first cavity (30); the stator assembly (4) and the electric control board (9) are disposed in the second cavity (40); the isolation sleeve (7) comprises a bottom portion (71); at least a portion of the heat dissipation plate (8) is disposed between the electric control board (9) and the bottom portion (71); at least a portion of the bottom portion (71) and at least a portion of the heat dissipation plate (8) are in direct contact, or are filled with thermal silicone grease or thermal silica therebetween, or are provided with a thermal patch therebetween. Or the first cavity (30) comprises a cavity fixedly formed by a portion of the heat dissipation plate (8) and the isolation sleeve (7). The structure is beneficial to the heat dissipation of the electric control board, thereby improving the service life of the electric pump.

Inventors:
BAO, Junfeng (No.289-2#, 12th Street Economic & Technological Development Are, Hangzhou Zhejiang 8, 310018, CN)
NING, Qiang (No.289-2#, 12th Street Economic & Technological Development Are, Hangzhou Zhejiang 8, 310018, CN)
Application Number:
CN2018/092349
Publication Date:
February 28, 2019
Filing Date:
June 22, 2018
Export Citation:
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Assignee:
HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD. (No.289-2#, 12th Street Economic & Technological Development Are, Hangzhou Zhejiang 8, 310018, CN)
International Classes:
F04D29/58; F04D13/06
Foreign References:
JP2013099021A2013-05-20
CN104362799A2015-02-18
CN204493214U2015-07-22
CN206054322U2017-03-29
JP2015151985A2015-08-24
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (7th Floor, Scitech PlaceNo.22 Jian Guo Men Wai Ave.,Chao Yang District, Beijing 4, 100004, CN)
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