Electromagnetic structure of high-power relay

Abstract

The invention provides an electromagnetic structure of a high-power relay. The electromagnetic structure comprises a shell, a permanent magnet, a piece of lower yoke iron, a piece of upper yoke iron, a coil framework and an armature, wherein the shell is in a cylinder shape provided with an opening on the top; the shell comprises a shell lower bottom and a shell side wall; the permanent magnet is in a cylinder shape, is fixed at the central position of the shell lower bottom and is magnetized along the longitudinal direction; the lower yoke iron is in a circular shape, is arranged above the permanent magnet and is not contacted with the permanent magnet; the lower yoke iron is fixedly connected with the shell side wall; the upper yoke iron is in a circular shape, is arranged above the lower yoke iron and is not contacted with the lower yoke iron; the upper yoke iron is fixedly connected with the shell side wall; the coil framework is in a ring shape, is arranged between the upper yoke iron and the lower yoke iron and is wound by a coil; the armature is in a cylinder shape, passes through the center of the lower yoke iron and can move up and down along the vertical direction; the upper yoke iron, the armature, the lower yoke iron and the shell side wall are made from permeability magnetic materials.

Description

technical field [0001] The invention relates to the technical field of relays, in particular to an electromagnetic structure of a high-power relay. Background technique [0002] Due to the irreplaceable advantages of a series of solid switching devices such as high conversion depth, multi-channel synchronous switching, large input-output ratio, and strong anti-interference ability, high-voltage DC high-power contactors have become indispensable in high-voltage DC power supply systems for advanced weapons and equipment. Key components are mainly used to complete functions such as system power distribution and load protection, and are an important direction for the future development of contactors. Our country is still blank in the technical reserves related to the design and testing of high-voltage DC contactors. The quality and supporting capabilities of such contactor products are currently difficult to escort aerospace and weaponry, and are increasingly becoming the key to...

AI Technical Summary

Problems solved by technology

Our country is still blank in the technical reserves related to the design and testing of high-voltage DC contactors. The quality and supporting capabilities of such contactor products are currently difficult to escort aerospace and weaponry, and are increasingly becoming the key to restricting the development of aerospace and weaponry.

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