Rapid-switch bistable state magnetic operating mechanism

Abstract

The invention provides a rapid-switch bistable state magnetic operating mechanism, and the operating mechanism comprises a moving core, a solenoid coil, permanent magnets, and a housing. The housing is a cylindrical housing, and the solenoid coil is disposed between a side surface of the moving coil and the housing. The permanent magnets comprise an upper permanent magnet and a lower permanent magnet, which are respectively disposed above and below the moving coil and have the opposite polarities. The magnetic core is provided with a guide column which is coaxial with the magnetic core. A switch can achieve the dual-holding and bistable state through the two permanent magnets when the switch is in any one state of switching-on or switching-off, thereby ironing out the defects that a conventional monostable permanent magnet mechanism is weak in holding force in a vacuum extinction chamber when the conventional monostable permanent magnet mechanism is in a switching-on or switching-off,and improving the overall reliability and stability of a rapid switch. Moreover, a spring tension structure in the conventional operating mechanism is simplified, and the switching performance of theswitch is greatly improved, wherein the switching-on time can be within 3ms. The mechanism has the good performances of high-speed switching and bistable state, and can achieve the electric switchingfunction through just changing the current direction of a coil.

Description

technical field [0001] The invention relates to a high-speed switch opening and closing, and specifically designs a fast switch bistable magnetic force operating mechanism. Background technique [0002] Switches are one of the most ubiquitous components in electrical circuits. Fast switches are used more and more in power systems because of their excellent performance. Most of the current fast switches are mechanical switches or semi-mechanical switches; semi-mechanical switches are mostly opened, closed and maintained through the cooperation of electromagnetic force and spring force. The holding force is very weak, and the fast switch needs to overcome the holding force of the spring in the process of changing the original state when opening and closing, so part of the opening and closing power provided will be offset, resulting in weakening of the opening and closing power , resulting in relatively poor closing performance of the fast switch; the fast switch designed for...

AI Technical Summary

Problems solved by technology

Most of the current fast switches are mechanical switches or semi-mechanical switches; semi-mechanical switches are mostly opened, closed and maintained through the cooperation of electromagnetic force and spring force. The holding force is very weak, and the fast switch needs to overcome the holding force of the spring in the process of changing the original state when opening and closing, so part of the opening and closing power provided will be offset, resulting in weakening of the opening and closing power , resulting in relatively poor closing performance of the fast switch; the fast switch designed for the above shortcomings is often difficult to take into account high-speed opening and closing and stability

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