An energy storage type electrically operated miniature circuit breaker

Abstract

The invention discloses an energy storage type motor-operated small-sized circuit breaker which includes at least one small-sized circuit breaker (1) and a motor-operated apparatus (2). The small-sized circuit breaker (1) and the motor-operated apparatus (2) are connected by using side-surface splicing. The motor-operated apparatus (2) controls the small-sized circuit breaker (1) to conduct closed and open circuit. According to the invention, the circuit breaker adds elastic piece transmission to a convey chain. The elastic piece can conduct mechanical energy storage, so that the circuit breaker herein addresses safety hazard which is often caused by the lingering of the small-sized circuit breaker at an intermediate state upon abnormal power cut-off in the proceeding of executing closed circuit of rigid transmission motor-operated small-sized circuit breakers in the market.

Description

technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to an energy storage type electrically operated small circuit breaker, which improves the safety of the circuit breaker in use. Background technique [0002] The opening and closing actions of traditional miniature circuit breakers require manual operations. With the development of smart grid, there is an urgent need for small circuit breaker products that can reliably realize automatic opening and closing. Therefore, small circuit breakers assembled with electric operating devices have appeared on the market. By sending instructions to the electric operating device, the small circuit breaker can be driven to open and close automatically without manual operation, which effectively saves manpower and material resources. Applications are increasingly widespread. However, for such products that are common in the existing market, the internal tran...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an energy storage type electric operation miniature circuit breaker for the technical defect that the internal transmission mechanism between the existing miniature circuit breaker electric operating device and the miniature circuit breaker uses rigid parts to directly drive and is prone to accidents. An elastic part is added to the drive chain, and this elastic part can store mechanical energy, which solves the problem of abnormal power failure in the process of closing the small circuit breaker with rigid transmission and electric operation in the existing market. The problem that the contacts of miniature circuit breakers stay in an intermediate state is likely to cause safety hazards

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