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Bistable permanent-magnet operating mechanism dispersedly exciting on two sides of brake opening and closing working air gaps

A technology of working air gap and permanent magnet operation, which is applied to the power device inside the switch, etc., can solve the problems of high peak current of opening coil and closing coil and unsatisfactory mechanical characteristics, so as to reduce the peak current and increase the excitation Effects, touch time and motion time reduction effects

Inactive Publication Date: 2013-01-02
沈阳明鑫智能电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it is also used in switches with medium strokes, the peak current of the opening coil and closing coil is relatively large, and the mechanical characteristics are not ideal
It has not been applied to long-stroke high-voltage switches

Method used

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  • Bistable permanent-magnet operating mechanism dispersedly exciting on two sides of brake opening and closing working air gaps
  • Bistable permanent-magnet operating mechanism dispersedly exciting on two sides of brake opening and closing working air gaps

Examples

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Embodiment Construction

[0017] figure 1 It is the operation diagram of the bistable permanent magnet with dispersed excitation on both sides of the opening and closing working air gap. In the figure, 1 is the static iron core, 2 is the moving iron core, 3 is the permanent magnet, and 4 is the driving rod (non-magnetic material) ), 5 is the main closing coil, 6 is the auxiliary opening coil, 7 is the main opening coil, and 8 is the auxiliary closing coil. The moving iron core 2 is located at the opening position. Such as figure 1 As shown, this kind of bistable permanent magnet operating mechanism with distributed excitation on both sides of the opening and closing working air gap places the main closing coil 5 and auxiliary opening coil 6 on the side of the closing working air gap, The main opening coil 7 and the auxiliary closing coil 8 are placed on one side of the working air gap.

[0018] figure 2 Wiring diagram for main closing coil, auxiliary closing coil, main opening coil and auxiliary o...

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Abstract

The invention discloses a bistable permanent-magnet operating mechanism dispersedly exciting on two sides of brake opening and closing working air gaps, which is suitable to be used for driving a contact terminal to move in single-phase, multi-phase high-voltage, intermediate-voltage and low-voltage switches and is characterized in that a main brake closing coil and an auxiliary brake opening coil are arranged on one side of a brake closing working air gap, and a main brake opening coil and an auxiliary brake closing coil are arranged on one side of a brake opening working air gap, wherein the main brake closing coil and the auxiliary brake closing coil are connected in series; and the main brake opening coil and the auxiliary brake opening coil are connected in series. The invention has favorable excitation effect; a moving iron core can obtain enough operation power in a whole movement process; the contact time and the movement time are reduced, the peak current of an exciting coil is reduced, the energy consumption of an energy storage capacitor is decreased, and the mechanical properties are well matched with brake opening properties and brake closing properties of the contactterminal.

Description

technical field [0001] The invention relates to a bistable permanent magnet operating mechanism, in particular to a bistable permanent magnet operating mechanism which disperses excitation on both sides of the opening working air gap and the closing working air gap. The improvement of the structure of the steady-state permanent magnet operating mechanism is suitable for use in single-phase, multi-phase high-voltage, medium-voltage and low-voltage switches for driving contact movement. Background technique [0002] The bistable permanent magnet operating mechanism is mainly used in high-voltage, medium-voltage and low-voltage switches to drive contacts to open or close. The existing bistable permanent magnet operating mechanism has two coils, one closing coil and one opening coil. The closing coil is placed on the side of the closing working air gap, and the opening coil is placed on the opening side. Working air gap side. [0003] The working principle of the bistable perm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/28
Inventor 蔡志远马少华厉伟王俭
Owner 沈阳明鑫智能电器有限公司
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