Method and device for suppressing noise of electromagnetic relay and computer-readable storage medium

Abstract

The invention discloses a method and device for suppressing the noise of an electromagnetic relay and a computer-readable storage medium. The method comprises a step of energizing a coil of an electromagnetic relay to control the movement of an armature of the electromagnetic relay such that a movable contact and a static contact of the electromagnetic relay gradually approach when the electromagnetic relay needs to be closed, and a step of starting to reduce the current such that the movement speed of the armature is lower than a preset first speed value when the movable contact and the static contact are in contact when the time reaches a preset first time T1. According to the invention, the generation of noise of the electromagnetic relay during the closing process can be effectively suppressed by controlling the working current of the electromagnetic relay in the closing process.

Description

technical field [0001] The invention relates to the technical field of relays, in particular to a method, device and computer-readable storage medium for suppressing the noise of an electromagnetic relay. Background technique [0002] Electromagnetic relay is a switch that uses smaller current and lower voltage to control larger current and higher voltage. It plays the role of automatic adjustment and safety protection in the circuit. The working principle of the electromagnetic relay is: when it needs to be closed, the electromagnetic field is generated by energizing the coil, thereby generating an attraction force on the armature to move the armature, and then moving the moving contact to the static contact and finally contacting the static contact; and When it needs to be disconnected, the energization of the coil is disconnected, and the armature is reset under the action of a reset member (such as a spring), so that the movable contact is separated from the static conta...

AI Technical Summary

Problems solved by technology

[0003] The inventor found in the process of implementing the present invention that there are the following technical problems in the prior art: when the existing electromagnetic relay is closed, relatively strong noise will be generated due to the rapid collision between the moving contact and the static contact, while Strong noise can cause people's restlessness and restlessness

For example, the above-mentioned large-capacity electromagnetic relay will generate noise due to the rapid collision between the movable contact 55 and the static contact 54 during the closing process (it will also generate noise due to the rapid collision between the armature 56 and the fixed iron core 50)

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