Electromagnetic relay

Abstract

The invention discloses an electromagnetic relay, which comprises a base, a magnetic circuit part, a contact part and a push clamp, an armature of the magnetic circuit part is arranged on the base in a swinging manner, the contact part comprises a movable spring part with a movable contact and a static spring part with a static contact, and the movable spring part and the static spring part are respectively arranged on the base; the electromagnetic relay further comprises an elastic piece, the armature is matched with the movable spring part through the elastic piece and the pushing card, when the armature moves in the attraction direction, the movable spring part is driven to act through the elastic piece and the push clamp, and in an overtravel stage of the armature, the elastic piece elastically deforms. According to the invention, the contact overtravel and the contact pressure can be realized under the assistance of the elastic deformation of the elastic piece, so that on the one hand, the static spring part can be made to be rigid and does not need to be made to be flexible for realizing the contact overtravel, and the anti-drop impact performance of the relay is improved; and on the other hand, the problem that the armature cannot be attracted in place after the current-carrying capacity of the product is improved is solved.

Description

technical field [0001] The invention relates to the field of relays, in particular to an electromagnetic relay. Background technique [0002] The relay is an electronic control device, which has a control system (also known as the input circuit) and a controlled system (also known as the output circuit), usually used in automatic control circuits, it actually uses a smaller current to control a larger An "automatic switch" of current, so it plays the role of automatic adjustment, safety protection, conversion circuit, etc. in the circuit. [0003] Electromagnetic relay is a kind of relay, and a kind of electromagnetic relay of prior art is made up of base, magnetic circuit part, contact part, pushing card and casing etc. The armature of the magnetic circuit part is swingably installed on the base, the moving spring and the static spring of the contact part are respectively inserted on the base, and the head of the moving spring is connected to the top of the armature throug...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the present invention provides an electromagnetic relay. By adding an elastic member, the elastic member is used to assist in realizing the over-travel of the contact, so as to prevent the problem that the armature cannot be sucked in place when the current carrying capacity of the product is improved, and at the same time Improving the drop impact resistance of relays

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