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Jitter-free electromagnetic relay

A technology of electromagnetic relays and relays, applied in the direction of electromagnetic relays, electromagnetic relay details, relays, etc., can solve the problems of unsatisfactory anti-jitter effect and complex structure of electromagnetic relays, and achieve the elimination of contact jitter phenomenon, low power consumption, and long life long effect

Inactive Publication Date: 2014-07-09
BEIHAI SHENLAN SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in fact, it can be clearly seen that the electromagnetic relay is not only complex in structure, but also the anti-jitter effect is not ideal after the experiment.

Method used

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  • Jitter-free electromagnetic relay

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] attachedfigure 1 A schematic structural diagram of Embodiment 1 of the present invention is given, see the attached figure 1 . On the relay base 12 made of insulating material such as bakelite, a moving contact piece support piece 7 is fixed to a support body 8, on the support body 8 there is a moving contact piece support piece 7, and the coil 11 is fixed on the bottom of the relay base 12, The middle section of the U-shaped iron core 9 is placed in the coil 11. The two end points A and B of the iron core are respectively close to the left permanent magnet 1 and the right permanent magnet 1 fixed on the movable contact piece support piece 7. On the left side, there is a permanent magnet 1 rigidly connected to the moving contact piece 5, the left permanent magnet 1 on the moving contact piece supporting piece 7 is close to the end A of the U-shaped iron core 9, and the permanent magnet on the right side of the moving contact piece supporting piece 7 1 is close to the B...

Embodiment 2

[0042] attached figure 2 A schematic structural diagram of Embodiment 2 of the present invention is given, see the attached figure 2 . The only difference from Embodiment 1 is that in Embodiment 1, the movable contact piece 5 and the movable contact piece support piece 7 are made of two different metals and are riveted with rivets, while in this embodiment 2, the movable contact piece 5 and the movable contact piece support piece are made of two different metals. 7 is made of the same metal.

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Abstract

A jitter-free electromagnetic relay comprises a relay seat, a coil, an iron core, a movable contact piece, a movable contact point and a fixed contact point. The jitter-free electromagnetic relay is characterized in that a fixed contact piece is fixed with a permanent magnet, and the movable contact piece is fixed with another permanent magnet. According to the jitter-free electromagnetic relay, various measures for restraining jitter are adopted, so that jitter is restrained when contact and attraction are conducted on the contact points, and the contact jitter phenomenon is eliminated. The defect that in a traditional electromagnetic relay, the service life of the relay is shorten greatly because contact points are corroded and sintered by an electric arc which is generated due to the fact that jitter is generated when the attraction and release of contact heads and the contact points of are conducted is ideally overcome.

Description

technical field [0001] The invention belongs to the technical field of electromechanical engineering, and particularly relates to the design and manufacture of an electromagnetic relay without jitter. Background technique [0002] Electromagnetic relays are commonly used components in electromechanical engineering. The electromagnetic relay is mainly composed of relay base, iron core, coil, fixed contact piece, fixed contact fixed on the fixed contact piece, moving contact piece, and moving contact fixed on the moving contact piece. The traditional electromagnetic relay contacts will vibrate when they are pulled in and released, and cannot be used in applications requiring less jitter. When the contacts vibrate, an arc will be generated, and the arc will corrode and fuse the contacts. Jitter can seriously affect the life of the relay if certain precautions are not taken. Practice has proved that reducing contact jitter and eliminating arcs are the decisive factors to incr...

Claims

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Application Information

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IPC IPC(8): H01H50/54H01H1/54
Inventor 姚普粮韦甘铭林朝光黄镜彬欧世文龙光成苏光雍莫先怡
Owner BEIHAI SHENLAN SCI & TECH DEV