Breaker possessing reclosing function

Abstract

The invention discloses a breaker possessing a reclosing function. A closing / opening transmission part of an operation mechanism of the breaker comprises a rotating handle, an embossment portion, a sliding handle and a support component, wherein the rotating handle is connected to an output shaft of a motor and is driven by the motor and can rotate about the output shaft; the embossment portion is arranged on the rotating handle and can be rotated together with the rotating handle; the sliding handle can carry out linear sliding along a guide groove arranged on the sliding handle under an effect of the embossment portion; the support component is fixed on a fixing seat and passes through the guide groove. The sliding handle carries out the linear sliding along the guide groove so as to realize closing / opening operation of the breaker. According to the breaker of the invention, a lever-type structure is used and a motion mode of gear transmission in the prior art is changed into a motion mode of linear lever sliding. By using a current electric operating mechanism, part processing cost is high; a part precision requirement is high and the structure is complex. By using the breaker of the invention, the above technical problems are solved. Simultaneously, an internal structure of the breaker is compact; an occupation space of a product is small and the breaker is especially suitable for a small-size reclosing breaker.

Description

technical field [0001] The invention belongs to the technical field of circuit breakers, in particular to a circuit breaker with reclosing function. Background technique [0002] A circuit breaker is a switching device that can close, carry and break current under normal circuit conditions, and can close, carry and break current under abnormal circuit conditions (including short-circuit conditions) within a specified time. It is generally composed of a contact system, an arc extinguishing system, an operating mechanism, a trip unit, and a casing. Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fuse-type switch. Combination with overheating and underheating relays, etc., and there is generally no need to change parts after breaking the fault current. The...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the cumbersome structure of the circuit breaker in the prior art due to the cumbersome structure of the operating mechanism and the high processing cost of the circuit breaker due to the high precision requirements of the operating mechanism. technical problems, thereby providing a circuit breaker with simple structure and low processing cost

[0007] Another technical problem to be solved by the present invention is to overcome the technical problem that the circuit breaker in the prior art takes up a large space and the structure is not compact due to the three-layer structure, so as to provide a circuit breaker with a small space and a compact structure. device

Images