Title:
ELECTRONIC EXPANSION VALVE AND REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/127264
Kind Code:
A1
Abstract:
An electronic expansion valve and a refrigeration device. The electronic expansion valve comprises a valve seat (110), a nut (210), and a connecting piece (220). The valve seat (110) is provided with a valve cavity (101). One end of the nut (210) is mounted in the valve cavity (101). The outer wall of the nut (210) is convexly provided with an annular positioning portion (211). The positioning portion (211) abuts against the cavity wall of the valve seat (110) for positioning. One end of the connecting piece (220) is fixedly connected to the nut (210), and the other end extends away from the nut (210) and is fixedly connected to the axial end surface of the valve seat (110).
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Inventors:
HUANG LONGHUA (CN)
CHEN CHAO (CN)
YANG MAO (CN)
JIANG BO (CN)
CHEN CHAO (CN)
YANG MAO (CN)
JIANG BO (CN)
Application Number:
PCT/CN2021/120607
Publication Date:
June 23, 2022
Filing Date:
September 26, 2021
Export Citation:
Assignee:
GUANGDONG WELLING MOTOR MFG CO (CN)
International Classes:
F16K1/48; F16K31/02; F16K31/50
Foreign References:
| CN112524261A | 2021-03-19 | |||
| CN213954361U | 2021-08-13 | |||
| CN211145371U | 2020-07-31 | |||
| CN209012453U | 2019-06-21 | |||
| CN110836271A | 2020-02-25 | |||
| CN107917276A | 2018-04-17 | |||
| JP2000213660A | 2000-08-02 | |||
| CN202011483239A | 2020-12-14 |
Other References:
See also references of EP 4242498A4
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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