Patent ID: 11929225
Assignee: ZHEJIANG CHINT ELECTRICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The miniature circuit breaker according to claim 9, wherein the operating mechanism further comprises a button mechanism reset member, and a guide boss and a guide groove set which are matched with the switching-off rod and arranged on the circuit breaker housing; the guide groove set comprises a first guide groove, a second guide groove, a third guide groove, a fourth guide groove, and a fifth guide groove, and the first guide groove, the second guide groove, the third guide groove, the fourth guide groove, and the fifth guide groove are connected end to end to form the annular guide groove set surrounding the guide boss;
when the miniature circuit breaker is in the switching-off state, the button mechanism is pressed, the switching-off rod driving end of the switching-off rod passes through the first guide groove and then the second guide groove to enter the third guide groove, the miniature circuit breaker enters the switching-on state, the button mechanism is released, the button mechanism reset member drives the switching-off rod driving end to pass through the third guiding groove to enter the fourth guiding groove through the button mechanism, and the switching-off rod driving end is in limit fit with the guide boss; and the button mechanism is pressed again, the button mechanism drives the buckle member to rotate through the switching-off rod driving end, the buckle member is unlocked from the catch member, the operating mechanism is buckled, the operating mechanism drives the button mechanism to reset, the button mechanism drives the switching-off driving end to pass through the fourth guide groove and then the fifth guide groove to enter the first guide groove, so that the miniature circuit breaker enters the switching-off state.