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:
Mar. 17, 2026
Filed:
Feb. 16, 2022
Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd, Shanghai, CN;
Shanghai Electrical Apparatus Research Institute, Shanghai, CN;
Senlin Zhang, Shanghai, CN;
Bingqing Wang, Shanghai, CN;
Rongwei Zhou, Shanghai, CN;
Jisheng Sun, Shanghai, CN;
Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd, Shanghai, CN;
Shanghai Electrical Apparatus Research Institute, Shanghai, CN;
Abstract
A circuit breaker, comprising a housing, an operation assembly, an arc extinguishing device, and a transmission mechanism. The housing has, in a first direction, a bottom and a top opposite to each other, an accommodation portion recessed from the top to the bottom, and an accommodation cavity semi-surrounding the accommodation portion; a rotating wheel and a movable contact connected to the rotating wheel are provided in the accommodation cavity close to the top and adjacent to the accommodation portion in a second direction, wherein the first direction intersects the second direction; the operation assembly is rotatably and detachably connected to the top of the housing; the arc extinguishing device comprises an arc extinguishing chamber located in the accommodation cavity and close to the bottom of the housing. The circuit breaker can avoid interference between the transmission mechanism and other components while increasing the size of the arc extinguishing chamber.