Contact system of electromagnetic relay

An electromagnetic relay and contact system technology, applied in electromagnetic relays, electromagnetic relay details, relays, etc., can solve the problems of reducing size, increasing the force of the moving spring, and increasing the push card 81', so as to reduce energy consumption, Increase contact gap, reduce force effect

Active Publication Date: 2012-06-27
XIAMEN HONGFA ELECTROACOUSTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the existing contact system, reducing the distance 81a' while keeping the displacement 81b' of the push card 81' unchanged can improve the contact gap, but it is necessary to increase the force of the moving spring. It is not conducive to saving energy; or in order to reduce the force of pushing the moving spring, it is necessary to increase the distance 81a', but this needs to increase the displacement 81b' of the push card 81', which is not conducive to reducing the size

Method used

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  • Contact system of electromagnetic relay
  • Contact system of electromagnetic relay
  • Contact system of electromagnetic relay

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment one, see Figure 5 to Figure 8 As shown, the contact system of a kind of electromagnetic relay of the present invention comprises: the moving spring part 6 that is made up of moving spring 60 and moving contact 61, the static spring part 7 that is made up of static spring 70 and static contact 71, and a The push card 81 that is used to push the movable spring 60 to move so that the movable contact 61 on the movable spring is in contact with the static contact 71 on the static spring; 1. The movable contact fixed end 62 used to connect the movable contact and the deformation root 66 used to support the deformation of the movable spring part connected to the movable contact;

[0035] It also includes: the rotating arm 64 and the supporting end 63 in the moving spring, and the stopper 91 which is arranged outside the moving spring to limit and support the supporting end 63 of the moving spring; the supporting end 63 is longitudinally arranged at the opposite Th...

Embodiment 2

[0044] Embodiment two, see Figure 9 As shown, the contact system of an electromagnetic relay of the present invention is different from Embodiment 1 in that the structure of the moving spring part 6 is different, and the moving spring part 6 includes a moving spring 60 and a moving contact 61, and the moving spring 60 includes The movable contact fixed end 62 , the support end 63 , two symmetrical rotating arms 64 and the lead-out pin 65 , the rotating arm 64 is located between the movable contact fixed end 62 and the supporting end 63 .

Embodiment 3

[0045] Embodiment three, see Figure 10 As shown, the contact system of an electromagnetic relay of the present invention is different from Embodiment 1 in that the structure of the moving spring part 6 is different, and the moving spring part 6 includes a moving spring 60 and a moving contact 61, and the moving spring 60 includes The fixed end 62 of the movable contact, the supporting end 63 , two symmetrical rotating arms 64 and the lead-out pin 65 , the rotating arm 64 is located beside the supporting end 63 .

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Abstract

The invention discloses a contact system of an electromagnetic relay, comprising a dynamic spring part, a static spring part and a pushing card, wherein the dynamic part comprises a lead-out pin for being connected with an outer lead, a dynamic contact fixing end for connecting a dynamic contact and a deformation root for supporting the deformation of the dynamic spring part connected with the dynamic contact; a rotary arm and a support end are additionally arranged inside the dynamic spring part, and a limit stop for limiting and supporting the support end of the dynamic spring is arranged outside the dynamic spring part; the support end is arranged at one end opposite to the dynamic contact fixing end in a lengthways manner; and the rotary arm is arranged horizontally and one end thereof is integrally connected on the dynamic spring between the dynamic contact fixing end and the support end, and the other end thereof is integrally connected on the extension section of the deformation root or the deformation root of the dynamic spring part. The structure can increase contact clearance without enhancing the strength for pushing the dynamic spring, or can reduce the strength for pushing the dynamic spring while preserving the prior contact clearance so as to reduce the energy cost of the electromagnetic relay.

Description

technical field [0001] The invention relates to an electromagnetic relay, in particular to a contact system of the electromagnetic relay. Background technique [0002] Electromagnetic relays are widely used in automatic control equipment. Due to the needs of technological development, relays are required to have a more compact structure, smaller volume, higher sensitivity, and higher reliability. Increase the gap between contacts. The usual way to increase the contact gap is to increase the length of the moving spring, or to use a bridge contact structure (such as figure 1 shown) or reduce the pushing point on the moving spring, the first two will increase the size of the relay, which is not conducive to the miniaturization of the relay, and reducing the pushing point on the moving spring can increase the contact gap, but due to the force arm Changes, or need to increase the force to push the moving spring, in order to ensure that the contact pressure will not decrease, or...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01H50/56
Inventor王俊青
OwnerXIAMEN HONGFA ELECTROACOUSTIC CO LTD