Pushing card chipless assembling electromagnetic relay and assembling method thereof

Abstract

The invention discloses a pushing card chipless assembling electromagnetic relay and an assembling method thereof. The electromagnetic relay comprises a moving reed, an armature, a pushing card and a pedestal, wherein the pushing card is clamped into a track of the pedestal through an interference-free clamping structure between the pushing card and the pedestal and can only perform linear reciprocating movement along the track limited by the pedestal, the pushing card cooperates with the armature in a contact mode at one end of the linear reciprocating movement to enable the armature to only push the pushing card to move in a single direction, and the pushing card also cooperates with the moving reed at the other end of the linear reciprocating movement in a contact mode to enable the pushing card to also only push the moving feed to act in a single direction. According to the electromagnetic relay provided by the invention, when the pushing card is assembled, interference assembling is not employed, and plastic powder shreds are not generated; the positioning and motion locus of the pushing card of the assembled relay are determined through the pedestal, the plastic powder shreds are not easily generated through friction in normal operation of the relay, the movement locus of the pushing card is quite simple, and the assembling precision is also more accurate.

Description

technical field [0001] The invention relates to an electromagnetic relay, in particular to an electromagnetic relay for chipless assembly of a push card and an assembly method thereof. Background technique [0002] The basic working principle of the electromagnetic relay is to convert electrical energy into magnetic energy and then into mechanical energy, and use mechanical energy to connect and break the controlled circuit to realize the function of "relay". [0003] Connecting electrical signals is one of the most important functions of electromagnetic relays. For a long time, plastic powders generated during the assembly process of electromagnetic relays, or plastic powders generated during mechanical actions of relays, are important factors that affect the reliability of electrical contacts. factor. Therefore, how to reduce plastic powder is an important topic for relay manufacturers. [0004] In the traditional relay design, the positioning of the intermediate mechani...

AI Technical Summary

Problems solved by technology

In this way, the punching edges of metal parts such as moving springs and armatures often need to be in direct contact with the push cards made of plastic materials. The push cards rub against each other, which easily produces plastic powder, which affects the reliability of electrical contact

[0005] Although the electromagnetic relay products of the prior art have been improved in design in details, such as flanging the part of the moving spring that is in contact with the push card to prevent the blanking edge from directly rubbing against the push card, etc., this improvement is very limited and the process Complicated, costly and ineffective

[0006] In addition, due to the joint action of the moving spring and the armature, the movement track of the push card of the electromagnetic relay in the prior art changes with the rotation of the moving spring and the armature. The running track of the push card is very complicated, resulting in poor assembly accuracy.

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