Three-station bistable permanent magnet mechanism

Abstract

The invention discloses a three-station bistable permanent magnet mechanism which comprises an output shaft, an outer yoke, a moving iron core connected with the output shaft in a fastening way, a first group of coils, a second group of coils, and a moving iron core sleeved with the output shaft in an empty way; a group of permanent magnets are arranged on the moving iron core connected with the output shaft in the fastening way; a second group of permanent magnets are arranged on the moving iron core sleeved with the output shaft in an empty way; a first accommodation cavity and a second accommodation cavity which are mutually communicated are arranged at the middle of the outer yoke; the first group of coils are arranged in the first accommodation cavity and sleeved on the periphery of the moving iron core connected with the output shaft in the fastening way; and the second group of coils are fixedly arranged in the second accommodation cavity and sleeved on the moving iron core sleeved with the output shaft in an empty way. The invention provides the three-station bistable permanent magnet mechanism which can output three stable and static work positions; the three-station bistable permanent magnet mechanism can reciprocate among the three work positions, can control the motion speeds at different work positions and can meet the requirement of switch equipment of three work positions on a permanent magnet driving mechanism.

Description

technical field [0001] The invention relates to the field of electromagnetic technology, in particular to a three-position bistable permanent magnet operating mechanism for switchgear. Background technique [0002] In the field of switchgear, permanent magnet operating mechanism is widely used because of its simple structure, high reliability and long life. The traditional bistable permanent magnet mechanism has two working holding positions, which are used by the switchgear as the closing position and the opening position. With the development of switchgear, switchgear with three working positions has been gradually applied due to higher integration and simplification of interlocking devices, such as switchgear with closing position, opening position and isolation position. But the traditional bistable permanent magnet mechanism cannot meet the functional requirements. Contents of the invention [0003] The purpose of the present invention is to provide a three-position...

AI Technical Summary

Problems solved by technology

However, the traditional bistable permanent magnet mechanism cannot meet the functional requirements

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