Long-service small-sized electromagnetic relay

Abstract

The invention discloses a long-service small-sized electromagnetic relay. The long-service small-sized electromagnetic relay comprises a yoke iron, an armature, an elastic piece, an iron core assembly, a coil frame, a push rod and a base, wherein the iron core in a nesting structure penetrates through an iron core hole of the coil frame and is riveted to a vertical section of the yoke iron, the yoke iron and the armature are steadily combined by virtue of a ''reverse L-shaped'' elastic piece, the coil is electrified to work, the armature is actuated, an armature clamp block and an elastic piece baffle block push the tail of the push rod to drive a movable spring to work, and then a movable contact is in contact with static contact; when the yoke iron and the elastic piece are reset, a limiting rod of the push rod props against an insulation wall of the base, so that the situation that the relay is disabled due to a too-large counter force of the elastic piece is avoided; the coil frameis precisely mounted in the base through a positioning column, and a varnished wire between the coil and a terminal pin is always located on the top surface of a right base plate between two wire clamping bolts, so that the steady wiring is realized. The long-service small-sized electromagnetic relay is compact in structure, stable in performance and good in insulativity, the working failure caused due to over-large actuation voltage can be effectively avoided, the position is precise, and the automatic assembling is easily realized.

Description

Technical field [0001] The invention relates to a small electromagnetic relay, in particular to a long-life small electromagnetic relay, and belongs to the technical field of electrical equipment. Background technique [0002] With the development of electrical miniaturization, traditional relays have large volumes, relatively large bases, push rods and coil formers, and the assembly with functional parts is not compact enough, and the separation between the magnetic circuit system and the conductive system is not clear enough. The insulation is not high enough; the assembly and positioning of each component is complicated, the production organization has many processes, mainly manual assembly and semi-automatic assembly, poor positioning, many welding and assembly processes, poor working environment and low work efficiency, can not meet the fast, high-quality and efficient industrial automation Manufacturing needs; in addition, due to structural design defects, when the relay is...

AI Technical Summary

Problems solved by technology

[0002] With the development of electrical miniaturization, traditional relays have large volume, relatively large base, push rod and coil frame, and the combination with functional parts is not compact enough. The separation between the magnetic circuit system and the conductive system is not clear enough, and the coil The insulation is not high enough; the assembly and positioning of each component is complicated, and there are many production organization processes, mainly manual assembly and semi-automatic assembly, poor positioning, many welding and assembly processes, poor working environment and low work efficiency, which cannot meet the needs of fast, high-quality and efficient industrial automation Manufacturing needs; in addition, due to structural design defects, when the relay is powered off, the shrapnel bounces and easily pulls the push rod to move back quickly, causing the relay to fail. The iron or armature moves back and forth, and the contact between the edge of the yoke iron and the edge of the armature is poor, which causes parameter variation and decreases working stability, which affects the normal use and life of the product

[0003] Existing relays have complex structures, large volumes, complex production processes, relatively high production costs, unstable product quality, poor product consistency, short service life, and inconvenient assembly, which is not conducive to automatic assembly

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