Circuit breaker operation structure for switch cabinet

Abstract

The invention discloses a circuit breaker operation structure for a switch cabinet. The circuit breaker operation structure comprises a frame, a main shaft, an energy storage gear set, a motor, an auxiliary switch, a buffer, a buffer limiting device, an energy storage spring, an opening tension spring, an opening and closing button assembly, a swing arm and a microswitch. The frame is provided with two partition plates, the main shaft penetrates through the partition plates, is pivoted to the frame and is provided with a fixed crank arm, and the energy storage gear set is arranged between the partition plates and is provided with a movable crank arm; the motor is arranged on the partition plates and is in transmission connection below the energy storage gear set; the auxiliary switch, the buffer and the buffer limiting device are arranged on the frame and are respectively linked with a fixed crank arm of the main shaft; the two ends of the energy storage spring are respectively connected with the partition plates and the movable crank arm; the two ends of the opening tension spring are respectively connected with the partition plates and the fixed crank arm; the opening and closing button assembly is installed on the partition plates and below the motor, and the swing arm and the microswitch are installed on the partition plates and are oppositely arranged. When energy storage is finished, a energy storage gear set drives the swing arm to trigger the microswitch, so that the motor can stop. According to the circuit breaker operation structure, the structure can be simplified, and the cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a circuit breaker operating structure for a switchgear, and is especially suitable for the application occasion of matching circuit breaker switches in SF6 high-voltage switchgear. Background technique [0002] Switch cabinet is an operating mechanism used in electrical equipment, mainly including frame, main shaft, closing and opening components, energy storage device, buffer and indicating parts. Usually, the operating mechanism of the circuit breaker includes manual operation and electric operation. The manual operation operates the input shaft through the handle to realize energy storage and closing and opening after energy storage; the electric operation realizes closing and opening after energy storage through the motor and closing and opening buttons. [0003] In the prior art, the design of the energy storage gear set involves energy storage and closing and o...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the design of the energy storage gear set is prone to jamming due to the energy storage and closing and opening actions, and it takes up a lot of space in the mechanism, affecting the cabinet width, and the cost is relatively high

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