Title:
ELECTRONIC EXPANSION VALVE AND REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/021770
Kind Code:
A1
Abstract:
An electronic expansion valve (10), comprising a valve seat (100), a connecting seat (200), a guiding sleeve (300), a valve port seat (400), and a valve spindle assembly (700). The valve seat has a valve cavity (120), the connecting seat and the guiding sleeve is disposed in the valve cavity, and the guiding sleeve is connected to the connecting seat. The valve port seat is provided with a valve port (410), and the valve port seat is sealingly connected to the guiding sleeve. The valve spindle assembly (700) comprises a valve rod (710) and a valve head (720), and the valve head is configured to open or close the valve port. The hardness of the valve port seat (400) is less than the hardness of the valve head (720). Also disclosed is a refrigeration device comprising the electronic expansion valve.
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Inventors:
YANG MAO (CN)
REN WEIFENG (CN)
LI GUANLONG (CN)
REN WEIFENG (CN)
LI GUANLONG (CN)
Application Number:
PCT/CN2023/093969
Publication Date:
February 01, 2024
Filing Date:
May 12, 2023
Export Citation:
Assignee:
GUANGDONG WELLING MOTOR MFG CO (CN)
International Classes:
F16K3/26; F16K3/30; F16K27/04
Foreign References:
| CN217927233U | 2022-11-29 | |||
| CN106678382A | 2017-05-17 | |||
| CN114352728A | 2022-04-15 | |||
| CN113623413A | 2021-11-09 | |||
| JP2004093016A | 2004-03-25 | |||
| JP2013092229A | 2013-05-16 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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