Breaker drive module

Abstract

A breaker drive module comprises a drive part, a first incomplete gear rotationally installed on the drive part through an elastic part, and a second incomplete gear being in transmission connection with the motor. The drive part is provided with a first motion-stopping surface, and the first incomplete gear is provided with a second motion-stopping surface; the motor drives the second incompletegear to rotate when closed, the second incomplete gear is engaged with the first incomplete gear to drive the rotation of the first incomplete gear, and the second motion-stopping surface and the first motion-stopping surface drive the rotation of the drive part to drive the closure of the breaker; and after the first incomplete gear is separated from the engaging with second incomplete gear, andthe first incomplete gear is acted by the elastic piece to be automatically returned to an initial position so as to reliably perform next engaging and cooperation with the second incomplete gear without influence of the breaker handle.

Description

technical field [0001] The invention belongs to the field of low-voltage electrical appliances, and relates to a circuit breaker, in particular to a drive module of the circuit breaker. Background technique [0002] In order to realize the remote control of the circuit breaker, the prior art is generally equipped with a drive module to realize automatic closing and opening of the circuit breaker. The drive module is mostly realized by motor and gear transmission. In order to meet the manual operation of the circuit breaker at the same time, there are mainly two existing technical solutions. One is to realize the closing of the circuit breaker through the motor-driven gear set, and the motor reverses to make the gear set return to The initial position, so as not to affect the operation of the handle of the circuit breaker, this scheme has relatively many detection positions (initial position, closing position, opening position), and has high requirements on the life of the mo...

AI Technical Summary

Problems solved by technology

The drive module is mostly realized by motor and gear transmission. In order to satisfy the manual operation of the circuit breaker at the same time, there are mainly two existing technical solutions. One is to realize the closing of the circuit breaker through the motor-driven gear set, and the motor reverses to make the gear set return to The initial position, so as not to affect the operation of the handle of the circuit breaker, this scheme has relatively many detection positions (initial position, closing position, opening position), and has high requirements on the life of the motor; the other is to use an incomplete gear structure , after the circuit breaker is closed, the incomplete gear is disengaged, so as to realize the free operation of the circuit breaker handle. This scheme has relatively few detection positions (initial position, tripping position), but the incomplete gear of the prior art and the circuit breaker The handle is rigidly connected to achieve synchronous movement, so the initial position of the incomplete gear is greatly affected by the handle of the circuit breaker, resulting in the incomplete gear meshing not in place

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