Title:
ELECTRONIC EXPANSION VALVE
Document Type and Number:
WIPO Patent Application WO/2023/098767
Kind Code:
A1
Abstract:
An electronic expansion valve, comprising: a valve seat (10); a valve core sleeve (90) fixed together with the valve seat by welding to form a welded structure; and a mounting base body (100) provided with a second mounting channel, both the valve seat and the valve core sleeve being mounted in the second mounting channel, wherein the outer wall of the valve seat or the valve core sleeve is provided with a relief space for the relief of the welded structure, or the inner wall of the mounting base body is provided with a relief space for the relief of the welded structure. The electronic expansion valve can solve the technical problem in the prior art that it is inconvenient to mount a valve seat on a mounting base body.
Inventors:
JIN JU (CN)
SHA HAIJIAN (CN)
WANG FUGANG (CN)
SHA HAIJIAN (CN)
WANG FUGANG (CN)
Application Number:
PCT/CN2022/135694
Publication Date:
June 08, 2023
Filing Date:
November 30, 2022
Export Citation:
Assignee:
ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)
International Classes:
F16K1/02; F16K1/32; F16K1/38; F16K1/42
Foreign References:
| CN216742870U | 2022-06-14 | |||
| CN107304843A | 2017-10-31 | |||
| CN107435753A | 2017-12-05 | |||
| CN111059295A | 2020-04-24 | |||
| CN112524261A | 2021-03-19 | |||
| US20150048266A1 | 2015-02-19 | |||
| US20210239378A1 | 2021-08-05 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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