Electromagnetic power switch for vehicle

Abstract

The invention relates to an electromagnetic power supply master switch for a vehicle; the electromagnetic power supply master switch comprises a housing and an insulating cover, wherein a coil and a moving iron are arranged in the housing; a moving sheet is mounted above the moving iron; two moving sheet silver contacts are welded at left and right ends of the moving sheet in a fused way; a stainless steel elastic sheet is riveted at the bottom of the moving sheet; a copper soft braided strap is arranged at the bottom of the stainless steel elastic sheet; holes are formed on the front side and the back side of the stainless steel elastic sheet, which are close to the moving sheet; two moving sheet tungsten steel contacts are respectively riveted in the holes; a static sheet is arranged above the moving sheet; the static sheet comprises a static sheet stainless steel bracket and an insulating layer; and two static sheet silver contacts and two static sheet tungsten steel contacts are arranged on the static sheet stainless steel bracket in a manner of corresponding to the two moving sheet silver contacts and the moving sheet tungsten steel contacts. The electromagnetic power supply master switch for the vehicle, provided by the invention, has the advantages as follows: a group of serially connected tungsten steel contacts are also connected on the basis that the two silver contacts can resist an arc after being connected with each other in series; and moreover, through the adoption of a sealing form, the external side of the static sheet stainless steel bracket is welded with the inner wall of the housing, so that the arc resisting grade is enhanced and the service life of the electromagnetic power supply master switch is also prolonged.

Description

technical field [0001] The invention relates to a vehicle-used electromagnetic power supply master switch. Background technique [0002] At present, when the main switch of the electromagnetic power supply used in the car of the 24V system is cut off, due to factors such as excessive current (sometimes up to 1000A) and other factors, arcing will occur, thereby burning out the main switch, and even causing the vehicle to spontaneously ignite . Contents of the invention [0003] The purpose of the present invention is to provide a vehicle electromagnetic power main switch to avoid the switch from burning out and the vehicle spontaneous combustion caused thereby. [0004] The purpose of the present invention is to realize through the following technical solutions: [0005] An electromagnetic power switch for a vehicle, comprising a cylindrical casing and an insulating cover covering the top of the casing, a coil and a moving iron are arranged inside the casing, and a moving...

AI Technical Summary

Problems solved by technology

[0002] At present, when the main switch of the electromagnetic power supply used in the car of the 24V system is cut off, due to factors such as excessive current (sometimes up to 1000A) and other factors, arcing will occur, thereby burning out the main switch, and even causing the vehicle to spontaneously ignite

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