ARC EXTINGUISHING DEVICE FOR EXTINGUISHING ARC IN ELECTRIC SWITCH, AND ELECTRIC SWITCH

WIPO Patent Application WO/2024/017076

A1

The present application discloses an arc extinguishing device for extinguishing an arc in an electric switch, and an electric switch. The arc extinguishing device at least comprises an arc extinguishing grid plate assembly, a moving contact, a static contact, and an insulating housing. An initial arc column is generated when the moving contact and the static contact are just separated. A plurality of metal arc extinguishing grid plates in the arc extinguishing grid plate assembly stacked to form at least one bending structure, and the plurality of metal arc extinguishing grid plates are arranged directly or indirectly along at least two adjacent inner sides in the insulating housing. The static contact is in the shape of at least one bending structure. A first metal arc extinguishing grid plate arranged at a first end of the arc extinguishing grid plate assembly is close to or adjacent to a bending conductor on the static contact, and is also arranged close to or adjacent to the initial arc column. The extension directions of the first metal arc extinguishing grid plate and the bending conductor are the same or form an included angle.

NAN TIAN (CN)
GUAN YIQING (CN)
KOU JI (CN)
ZHOU BIN (CN)
LIANG YINGJIE (CN)
NAN YIN (CN)

PCT/CN2023/106314

January 25, 2024

July 07, 2023

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TIANJIN SVRUI INTELLIGENT ELECTRICAL CO LTD (CN)

H01H9/30; H01H9/34

CN206401213U	2017-08-11
CN215183824U	2021-12-14
CN219105960U	2023-05-30
CN110033967A	2019-07-19
US20170098521A1	2017-04-06

BEIJING EAST IP LTD. (CN)

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