Title:
ELECTRIC VALVE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/157782
Kind Code:
A1
Abstract:
Disclosed is an electric valve, comprising: a valve body component (1A, 1B), wherein the valve body component (1A, 1B) comprises a valve core sleeve (2A, 2B), the valve core sleeve (2A, 2B) comprises a first inner guide wall (201A, 201B); a transmission component (4A, 4B), wherein a movable connecting component (6A, 6B) is in a suspended connection with the transmission component (4A, 4B), the movable connecting component (6A, 6B) comprises a connecting body (62A, 62B), the connecting body (62A, 62B) comprises a first outer guide wall (601A, 601B), the first outer guide wall (601A, 601B) is slidably in clearance fit with the first inner guide wall (201A, 201B), the connecting body (62A, 62B) comprises a lower opening portion (604A) and an accommodating hole (61A, 61B) in communication with the lower opening portion (604A), and a hole wall of the accommodating hole (61A, 61B) comprises a second inner guide wall (602A, 502B); and a valve needle component (5A, 5B), wherein the valve needle component (5A, 5B) comprises a valve needle (51A, 51B), the valve needle (51A, 51B) comprises a second outer guide wall (502A, 602B), the second outer guide wall (502A, 602B) is slidably in clearance fit with the second inner guide wall (602A, 502B), one end of an elastic element (7A, 7B) abuts against the movable connecting component (6A, 6B), and the other end of the elastic element (7A, 7B) abuts against the valve needle (51A, 51B). The reliability of opening of the electric valve is relatively improved, and motion stationarity of the valve needle component (5A, 5B) is improved. Further disclosed are a manufacturing method for the electric valve, and another electric valve and a manufacturing method therefor.
Inventors:
TANG SIJIE (CN)
Application Number:
PCT/CN2018/085982
Publication Date:
August 22, 2019
Filing Date:
May 08, 2018
Export Citation:
Assignee:
ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP CO LTD (CN)
International Classes:
F16K31/06
Foreign References:
| CN206159607U | 2017-05-10 | |||
| CN105090534A | 2015-11-25 | |||
| JPH0968287A | 1997-03-11 | |||
| CN206647571U | 2017-11-17 | |||
| CN201810147921A | 2018-02-13 | |||
| CN201810148020A | 2018-02-13 |
Other References:
See also references of EP 3754237A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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