Electromagnetic relay suitable for automatic production and with reliable electroconductivity and assembling method thereof

Abstract

The invention discloses an electromagnetic relay suitable for automatic production and with reliable electroconductivity and an assembling method of the electromagnetic relay. The electromagnetic relay comprises yoke, a movable spring and a movable spring leading pin, wherein the yoke is provided with a second bulge, and the movable spring is provided with a clamping hole correspondingly matched with the second bulge of the yoke; a second positioning hole correspondingly matched with a first bulge of the yoke is arranged on the movable spring leading pin; the movable spring is correspondingly matched with the first bulge and the second bulge of the yoke through a first positioning hole and the clamping hole to be positioned and clamped on the yoke; and the movable spring leading pin is arranged on the yoke by being matched with the first bulge of the yoke via the second positioning hole and performs riveting on the first bulge so that the movable leading pin, the movable spring and the yoke are fixed together, and the movable spring is clamped between the movable spring leading pin and the yoke. By adopting the structure, on one hand, the electromagnetic relay can eliminate the disadvantage that the movable spring is easily divorced from the bulges of the yoke in an automatic assembling process, and on the other hand, the electromagnetic relay can realize the effects of improving a current-carrying area, shortening a conducting path and reducing heat generation, thereby achieving the purposes of high-current and high-reliability electroconductivity.

Description

technical field [0001] The invention relates to an electromagnetic relay, in particular to an electromagnetic relay suitable for automatic production and reliable in conduction performance and an assembly method thereof. Background technique [0002] Relay is an automatic switching element with isolation function, which is widely used in communication, automobile, automatic control, household appliances and other fields, and is one of the most important control elements. With the requirements of modern industry for high production efficiency, high load current and high reliability of relays, the production method of relays has entered the era of automatic production, and the performance requirements have entered the era of high load and high reliability. [0003] The snap-in electromagnetic relay of the prior art usually includes parts such as a magnetic circuit part, a moving spring part, a lead-out pin, and a base part. It is composed of a moving spring and a moving conta...

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Problems solved by technology

[0004] The moving springs of the above two clap-on electromagnetic relays are positioned and fixed by riveting with the two convex buds on the yoke iron. During the automatic assembly process, the moving spring is easy to break away from the convex buds of the yoke iron, causing defects; On the one hand, the moving spring is not directly connected to the lead-out pin, but conducts electricity through the yoke. Since the conductivity of iron is very low compared to copper, it is easy to cause excessive heat in the conductive part of the yoke, which will cause the relay to fail due to excessive temperature rise.

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