Pulse trigger based bistable contactor

Abstract

The invention relates to a pulse trigger based bistable contactor. The contactor comprises a pedestal and a static iron core mounted on the pedestal, the static iron core is sleeved by a coil, a moving iron core which can move downwardly after being attracted by a magnetic force is arranged over the static iron core, a static contact is arranged in the upper side of the moving iron core, and a moving contact connected with the moving iron core is arranged over the static contact; and the static iron core is internally provided with a cavity, the cavity of the static iron core is internally provided with a slide block which is connected with the moving iron core through a push rod, a self-locking channel forming a closed loop structure is formed in the slide block, a locking bar which can lock the state of the contactor during opening/closing by cooperation with the self-locking channel is arranged in the cavity of the static iron core, and the upper end of the locking bar is provided with an upper hook portion which can be bent backwards to extend into the self-locking channel. The bistable contactor is simple and more compact in structure, convenient to install, debug and maintain, low in power consumption and free of severe collision, and motion of contacts is more sensitive.

Description

technical field [0001] The invention relates to a bistable contactor based on pulse triggering. Background technique [0002] The contactor is a widely used electrical control switching device. The traditional contactor is composed of dynamic and static contacts, coils, iron cores, etc. The closed state of this type of contactor is maintained by electromagnetic force, which not only wastes electric energy, but also makes a lot of noise and the performance is not stable enough. [0003] The permanent magnet bistable contactor has attracted extensive attention due to its advantages of less fault sources, low noise, and low energy consumption in operation. It is mainly composed of coils, armatures, and permanent magnets. However, this kind of contactor has many capacitor coils, which is easy to generate leakage voltage, resulting in unstable opening and closing of the contactor, and weak anti-interference ability. In addition, when the moving contact is broken or pulled in, t...

AI Technical Summary

Problems solved by technology

However, during the opening and closing process of the relay, there will be collisions between the ratchet and the push rod, which will easily cause damage to the relay. At the same time, it cannot be guaranteed that the angle of each rotation of the ratchet must be 90 degrees. The essential

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