Operation mechanism used by opening and closing releasing units in common and frame circuit breaker

Abstract

The invention relates to an operation mechanism used by opening and closing releasing units in common and a frame circuit breaker. The operation mechanism comprises a fixed guiding shaft, a sliding block arranged on the guiding shaft in a sliding connection manner, a closing semi shaft arranged below the front end of the sliding block, and an opening semi shaft arranged above the rear end of the sliding block. A long-strip-shaped straight slot is formed in the bottom of the rear end of the sliding block; the guiding shaft is inserted into the long-strip-shaped straight slot; a pressing block is arranged in the middle of the sliding block; a pressing stand is arranged at the bottom of the front end of the sliding block; and a force application platform is arranged on the top of the front end of the sliding block. Compared with the prior art, the operation mechanism and the frame circuit breaker have the following beneficial effects: because opening and closing are completed by one releasing unit, one releasing unit is reduced, so that the size of the frame circuit breaker is reduced by being compared with the existing frame circuit breaker; the total cost is lowered; mounting and dismounting are realized conveniently when a fault occurs at a product, so that maintenance becomes convenient; pars can be processed and manufactured conveniently; continuous opening and closing can be realized; pre-stored energy of the mechanism is not affected; and two wiring terminals can be employed by the releasing device, so that usage by a client is not affected.

Description

Technical field [0001] The invention relates to a frame circuit breaker, in particular to an operating mechanism and a frame circuit breaker shared by opening and closing releases. Background technique [0002] Frame circuit breaker, also called universal circuit breaker, is a kind of current that can connect, carry and break the current under normal circuit conditions, and can also connect, carry a certain time and break current under specified abnormal circuit conditions. Mechanical switch electrical appliances, the circuit breaker has a variety of intelligent protection functions, which can achieve selective protection, precise action, avoid unnecessary power outages, and improve power supply reliability. At present, the automatic opening and closing operations of all products in the industry use two releases, that is, a shunt release is used for opening, and a closing electromagnet is used for closing, so as to realize the closing and opening of the frame circuit breaker ope...

AI Technical Summary

Problems solved by technology

Due to the use of two releases, a large space is required in the frame circuit breaker to accommodate, thereby increasing the size of the frame circuit breaker; and the two releases increase the cost of the frame circuit breaker; in addition, using The two releases are not easy to repair when the product fails and needs to be repaired

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