公开(公告)号：US10347455B2

公开(公告)日：2019-07-09

申请号：US15559426

申请日：2016-03-19

Applicant: Hebei bao kay electric co., LTD

Inventor： Xinming Zhang

IPC: H01H73/02 ,  H01H71/24 ,  H01H83/20 ,  H01H71/08 ,  H01H83/22 ,  H01H71/04 ,  H01H77/10

Abstract: A miniature circuit breaker with quick current breaking capability which includes a miniature circuit breaker body, a current transformer CT1, a zero-sequence current transformer CT2 and a smart controller module. The miniature circuit breaker body is internally provided with a main arc extinguishing chamber, a fixed contact, a movable contact, a tripping mechanism, and a magnetic tripping push rod. The tripping mechanism includes a lock catch, a movable contact rocker arm, a jump pin, a connecting rod, and a tension spring. A rotated-hinge repulsive force structure is applied between the fixed contact and the movable contact. The tripping mechanism is further provided with a torsional spring to press the movable contact close to the fixed contact. A shunt tripping device controlling the miniature circuit breaker switch to be turned off is arranged in the smart controller module.

公开(公告)号：US20180090292A1

公开(公告)日：2018-03-29

申请号：US15559426

申请日：2016-03-19

Applicant: Hebei bao kay electric co., LTD

Inventor： Xinming ZHANG

IPC: H01H71/24 ,  H01H71/08

CPC classification number: H01H71/2463 ,  H01H71/04 ,  H01H71/08 ,  H01H77/102 ,  H01H83/20 ,  H01H83/226 ,  H01H2083/203 ,  H01H2219/016 ,  H01H2227/036 ,  H01H2235/01

Abstract: A miniature circuit breaker with quick current breaking capability which includes a miniature circuit breaker body, a current transformer CT1, a zero-sequence current transformer CT2 and a smart controller module. The miniature circuit breaker body is internally provided with a main arc extinguishing chamber, a fixed contact, a movable contact, a tripping mechanism, and a magnetic tripping push rod. The tripping mechanism includes a lock catch, a movable contact rocker arm, a jump pin, a connecting rod, and a tension spring. A rotated-hinge repulsive force structure is applied between the fixed contact and the movable contact. The tripping mechanism is further provided with a torsional spring to press the movable contact close to the fixed contact. A shunt tripping device controlling the miniature circuit breaker switch to be turned off is arranged in the smart controller module.