SOLENOID VALVE - ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD

Title:

SOLENOID VALVE

Document Type and Number:

WIPO Patent Application WO/2023/134750

Kind Code:

A1

Abstract:

Disclosed is a solenoid valve, comprising: a valve body (10), which is provided with a valve port (11); a housing (20), which is fixed to the valve body (10); a static iron core (30), which is arranged inside the housing (20); a movable iron core (40), which is movably arranged inside the housing (20), wherein a balance structure (41) is arranged on an outer side wall of the movable iron core (40), and extends from one end of the movable iron core (40) to the other end of the movable iron core (40), and an accommodating cavity is provided at the end of the movable iron core (40) which is close to the valve port (11); a sealing portion (50), which is movably arranged in the accommodating cavity; a correction portion, which is arranged in the accommodating cavity in a deflecting manner, is positioned at the end of the sealing portion (50) which is away from the valve port (11), and is provided with a first contact end and a second contact end, wherein the first contact end is provided with a cambered surface, the second contact end is provided with a flat surface, and the cambered surface of the first contact end abuts against the sealing portion (50); and a buffer member (70), which is arranged in the accommodating cavity and is positioned between the correction portion and the movable iron core (40), wherein one end of the buffer member abuts against the flat surface of the second contact end, and the other end of the buffer member abuts against an inner wall of the accommodating cavity. By means of the solenoid valve, the problem in the prior art of internal leakage being likely to occur at the valve port can be solved.

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Inventors:

TIAN PENG (CN)
TU LIEFENG (CN)
CHEN ZHEHANG (CN)

Application Number:

PCT/CN2023/072137

Publication Date:

July 20, 2023

Filing Date:

January 13, 2023

Export Citation:

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Assignee:

ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)

International Classes:

F16K1/00

Foreign References:

CN217401701U	2022-09-09
CN112984194A	2021-06-18
AU576710B1	1988-09-01
CN101929563A	2010-12-29
JP2019086086A	2019-06-06

Attorney, Agent or Firm:

KANGXIN PARTNERS , P.C. (CN)

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