A circuit breaker with integrated electric operating mechanism

Abstract

The present invention proposes a circuit breaker with an integrated electric operating mechanism that is simple in structure, easy to use, and operates independently. The first motor and the gear set used to drive the handle to rotate, the first motor and the gear set are in transmission connection, the rotation shaft is installed outside the side wall of the circuit breaker body, and the circuit breaker body is provided with A clutch mechanism for realizing linkage or separation between the gear set and the rotating shaft, the clutch mechanism includes a first friction disc and a second friction disc, and the first friction disc is connected to the rotating shaft through the first linkage mechanism Transmission connection, the side wall of the circuit breaker body is slidably provided with a sliding table through the driving mechanism along the axial direction of the first friction disc, and the first motor and the gear set are installed on the sliding table.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to a circuit breaker integrated with an electric operating mechanism. Background technique [0002] Miniature circuit breakers are suitable for overload and short-circuit protection of AC 50 / 60Hz rated voltage 230 / 400V, rated current up to 63A lines, and can also be used for infrequent operation conversion of lines under normal conditions. Miniature circuit breakers are mainly used for Industrial, commercial, high-rise and residential and other places. In the existing miniature circuit breakers, the closing and opening of the miniature circuit breaker is controlled manually by direct control of the handle. Therefore, how to artificially control the opening and closing of circuit breakers remotely is a problem that needs to be solved urgently in this field. [0003] In order to solve the problem of remotely controlling the opening and closing of the breaker, the utility model patent No. 2019206...

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Problems solved by technology

[0004] The circuit breakers disclosed in the above-mentioned prior art all drive the operating mechanism through a motor, and then the operating mechanism finally acts on the handle. The interlocking linkage between the operating mechanism and the handle means that the operating mechanism can drive the handle within a certain range. At the same time, the action of the handle will also act on the operating mechanism. When the circuit breaker trips due to short-circuit protection or overload protection, the handle will reverse the action on the operating mechanism. At this time, the operation The mechanism hinders the circuit breaker in the emergency protection state, that is, the operating mechanism will cause the circuit breaker to delay tripping, thereby greatly reducing the safety of the circuit breaker

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