Electromagnetic trip system of hydraulic type disconnector

Abstract

The invention discloses an electromagnetic trip system of a hydraulic type disconnector. The electromagnetic trip system of the hydraulic type disconnector comprises an armature, a damper, a loading coil, a support and a jumping pin, wherein the loading coil is sleeved on the damper, a pole shoe is arranged on one end of the damper, the pole shoe is of a cylinder shape and is coaxial with the damper, the armature comprises a lock catch part and an absorbing part, the armature is bent to form an L shape, the upper end of the lock catch part is connected with the support through an armature shaft in a hinge joint mode, a lock catch is arranged on the lock catch part to be matched with the jumping pin, the upper surface of the absorbing part corresponds to the end face of the pole shoe, and the distance between the lock catch part and the edge of the pole shoe is greatly longer than the distance between the upper surface of the absorbing part and the end face of the pole shoe. The L-shaped armature has functions of the lock catch and the armature simultaneously, due to the fact that the distance between the upper surface of the absorbing part and the end face of the pole shoe is greatly shorter than the distance between the lock catch part and the edge of the pole shoe, and therefore the electromagnetic trip system of the hydraulic type disconnector can satisfy sufficient trip journey, reduce initial working air gap, enlarge initial suction, and improve working reliability of the disconnector.

Description

technical field [0001] The invention relates to a hydraulic circuit breaker, in particular to an electromagnetic tripping system of the hydraulic circuit breaker. Background technique [0002] As an important part of hydraulic circuit breakers, the electromagnetic tripping system of hydraulic circuit breakers has always been a key part affecting the reliability of this type of product. The basic principles and main structures of the electromagnetic tripping system are well known in the art. Users continue to put forward higher requirements for the performance of circuit breakers, such as more reliable tripping characteristics, narrower installation dimensions, etc. Therefore, it is necessary to improve product performance stability in products with narrower dimensions. [0003] In the prior art, the electromagnetic tripping system of the hydraulic circuit breaker is mainly divided into two directions: one is the structure of the traditional thicker width size. The second is...

AI Technical Summary

Problems solved by technology

Especially for the current thin hydraulic circuit breakers, due to the small thickness of the product and the small size of the parts, the magnetic attraction force that can be provided is not large, and the working reliability of the product is difficult to guarantee.

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