The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2026
Filed:
Sep. 13, 2022
Chint Low Voltage Electrical Technology Co., Ltd., Shanghai, CN;
Denggui Ao, Shanghai, CN;
Dengyu Lu, Shanghai, CN;
Hao Fu, Shanghai, CN;
Yongfu Xu, Shanghai, CN;
Xiaoqin Yuan, Shanghai, CN;
Lijun Yan, Shanghai, CN;
Chuncui Wang, Shanghai, CN;
Abstract
A quick tripping device of a circuit breaker having a contact system that includes a moving contact mechanism and a static contact, wherein the moving contact mechanism includes a contact support and a moving contact, and a contact spring having two ends connected with the moving contact and the contact support respectively. The quick tripping device further includes a first transmission structure in driving fit with the contact spring and rotatable along with the contact spring. When a short-circuiting current flows through the contact system, the moving contact is repelled by an electric repulsive force between the moving contact and the static contact, so that the moving contact rotates relative to the contact support. The moving contact drives the first transmission structure to rotate through the contact spring, and the first transmission structure drives an operating mechanism to trip.