Matching structure of movable contact spring and pushing card of electromagnetic relay

Abstract

The invention discloses a matching structure of a movable contact spring and a pushing card of an electromagnetic relay. The matching structure comprises the pushing card and the movable contact spring, a clamping groove is formed in the pushing card; an opening is formed in one end of the clamping groove; the width of the movable contact spring is matched with the clamping groove of the pushing card; a first bending part which is bent towards the thickness surface of the movable contact spring is arranged at one end of the movable contact spring in the length direction; the first bending part is hooked on the thickness surface of the pushing card through the clamping groove; and in the inner section of one end of the length of the movable contact spring, one side of the width of the movable contact spring facing the direction of pushing the card to be installed is provided with a second bending part which is bent towards one side of the thickness of the movable contact spring, one end of the second bending part is a free end, the free end of the second bending part is bent inwards in the width direction of the movable contact spring to form a third bending part, the third bending part abuts against the other face of the thickness of the pushing card, and the third bending part can be used for preventing burrs on the width edge of the movable contact spring from generating scrapes on the other face of the thickness of the pushing card when the pushing card is installed in the movable contact spring.

Description

technical field [0001] The invention relates to the technical field of relays, in particular to a matching structure of a moving reed and a push card of 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 electric current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit. A kind of relay in the prior art uses a push card to connect between the moving reed and the armature of the contact part. The static contacts are in contact or separated. figure 1 It is the matching structure of the moving reed and the push card of a kind of electromagnetic relay in the prior art, see figure 1 As shown, the matching structure of the movab...

AI Technical Summary

Problems solved by technology

[0003] One is, when the push card 100 is assembled with the movable reed 200 from top to bottom, the edges on both sides of the width of the movable reed 200 have burrs, especially the edge burrs on one side of the width of the movable reed 200 towards the direction of pushing the card into the direction of the push card. Card 100 is prone to plastic scraping, which makes the relay unable to conduct the fatal flaw of the circuit

[0004] The 2nd, movable reed 200 can only realize forward and backward direction to pushing card 100 (as figure 1 As shown), in the pushing card loading direction, the moving reed 200 does not limit the pushing card 100, so that the pushing card 100 is easy to swing, and the impact resistance is weak. Under external impact, the moving reed 200 and Push card 100 easy dislocation

[0005] The third is that the inner part of the end of the moving reed 200 is usually used to install the moving contact. The rigidity of the end of the moving reed 200 is relatively poor, which makes the moving reed easier to deform. When disconnecting, push the puller to move the moving reed There will be an invalid stroke. When closing, the push card will also have an invalid stroke after the overtravel

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