Electric operation mechanism for realizing automatic switching-on function of miniature circuit breaker

Abstract

The invention relates to an electric operation mechanism for realizing an automatic switching-on function of a miniature circuit breaker, which comprises a box body, wherein the inside of the box body is provided with a control circuit board, a motor transmission unit and a shifting rod which is connected with the output of the motor transmission unit; the shifting rod extends out of the box body and supports against a handle of the miniature circuit breaker, and the motor transmission unit is controlled by the control circuit board, so that the shifting rod shifts the handle of the miniature circuit breaker, and finally, the switching-on motion of the circuit breaker is realized.

Description

technical field [0001] The invention relates to an electric operating mechanism, which is suitable for both three-phase and single-phase miniature circuit breakers, and in particular relates to an electric operating mechanism for realizing the automatic closing function of the miniature circuit breaker. Background technique [0002] For the electric power sector, switching and breaking equipment is an essential equipment to ensure the safety of electricity consumption and line switching. With the introduction of the country's smart grid plan, it is an important direction for circuit breaker equipment to move towards smart phones. [0003] see figure 1 As shown, it is a circuit breaker in the prior art, which can be a three-phase circuit breaker or a single-phase circuit breaker, and this will be described with a single-phase circuit breaker as an example. [0004] The circuit breaker includes a box body, inside the box body is provided with a circuit breaker action mechanis...

AI Technical Summary

Problems solved by technology

[0005] It has the following defects: in the prepayment system, the circuit breaker cannot be automatically closed after the user pays the electricity fee, and the electricity user needs to handle it himself, which brings inconvenience to the user;

[0006] Although there are some existing electric operating mechanisms, they are mainly aimed at large switches, and are rarely seen for miniature circuit breakers; and when a short-circuit fault occurs, there is no self-locking protection, which is easy to cause accidents

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