Fall-resisting electromagnetic relay

Abstract

The invention discloses a fall-resisting electromagnetic relay which comprises a casing, an electromagnetic part and a base, wherein the electromagnetic part is fixed with the base; the bottom of the casing is connected with the base; the electromagnetic part positioned on the base is accommodated in a casing cavity by the bottom of the casing; the electromagnetic part comprises a magnetic circuit part and a movable spring armature part; the magnetic circuit part comprises a coil rack; the movable spring armature part comprises a movable spring and an armature; a convex part leaned against the electromagnetic part is arranged in the casing; and the convex part is pressed and attached to the electromagnetic part from the vertical direction, so that the electromagnetic part is positioned by the casing in the vertical direction; and a convex part which is away from the movable spring armature by a preset distance is arranged on the inner wall of the casing and can be used for limiting the moving distances of the movable spring armature along the vertical direction and the transverse direction. According to the fall-resisting electromagnetic relay adopting the structure, the electromagnetic part can be accurately positioned inside the casing; the movable spring armature can be accurately limited; the electromagnetic part of the electromagnetic relay is better positioned; and the fall-resisting electromagnetic relay has high fall-resisting performance.

Description

technical field [0001] The invention relates to an electromagnetic relay, in particular to an electromagnetic relay with good positioning of the electromagnetic part and high anti-drop performance. Background technique [0002] Electromagnetic relays are electromechanical components widely used in automotive electronic control modules. Due to the harshness of the automotive environment and the high requirements for safety performance, relays used in the automotive field are required to have high shock and vibration resistance and good drop resistance. [0003] In the existing relay, the positioning of the electromagnetic part inside the shell is inaccurate. In order to make up for the error in the assembly process and ensure that the moving spring armature part has a reliable movement space inside the shell, the limit space of the moving spring armature part inside the relay is designed The margin is relatively large, which also brings about a relatively large moving distan...

AI Technical Summary

Problems solved by technology

[0003] In the existing relay, the positioning of the electromagnetic part inside the shell is inaccurate. In order to make up for the error in the assembly process and ensure that the moving spring armature part has a reliable movement space inside the shell, the limit space of the moving spring armature part inside the relay is designed The margin is relatively large, which also brings about a relatively large moving distance of the armature part of the moving spring when the relay is subjected to strong shock and vibration, which exceeds the elastic deformation range of the moving spring and causes plastic deformation of the moving spring, and the function of the relay is damaged or even fails.

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