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Low-noise relay

A relay and low-noise technology, which is applied in the field of low-noise relays, can solve the problems of loud electromagnet noise and high electromagnetic force of relays, and achieve the effects of reducing noise, reducing electromagnetic force, and reducing oversaturation

Active Publication Date: 2018-08-10
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the relay using the above-mentioned magnetic circuit can also meet the general use requirements, however, during the pull-in process of this kind of relay, as the armature moves downward, the gap between the armature and the iron core gradually decreases, and there will be a gap near the top of the iron core. The phenomenon of magnetic saturation occurs, so that the electromagnetic force of the relay is very large when it is closed, so that the electromagnet will produce a lot of noise when it is closed.

Method used

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Embodiment Construction

[0015] In order to better understand the technical content of the present invention, specific embodiments are given and described as follows in conjunction with the accompanying drawings.

[0016] Such as Figure 1-3 As shown, a low-noise relay includes L-shaped moving reed 2, armature 3, iron core 4, L-shaped yoke 5, coil bobbin 7, coil 8, output static reed 9, input static reed 10 and The coil control pin 11, the coil frame 7 is arranged on the bottom of the L-shaped yoke 5, the outside of the coil 8 is coated with enameled wire and wound on the coil frame 7, the center of the coil frame 7 is provided with a through hole, and the iron core 4 passes through the through hole. The hole is fixedly connected with the bottom of the L-shaped yoke 5, the vertical part of the L-shaped moving reed 2 is fixedly connected with the vertical side of the L-shaped yoke 5, and its transverse part is fixedly connected with the armature 3, and the L-shaped moving reed 2 is horizontally The up...

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Abstract

The invention provides a low-noise relay, which mainly comprises a base, an L-shaped yoke, an armature, a bobbin, a coil, an iron core, a movable contact spring, a fixed contact spring, a movable contact and a fixed contact, wherein a magnetic limiting groove is formed in the lower part of a vertical side of the L-shaped yoke; the iron core is in a stepped form; the axis diameter of one end, far away from the armature, of the iron core is the smallest; and the axis diameter of one end, close to the armature, of the iron core is the biggest. When the coil is electrified, magnetic flux generatedby the coil passes through the magnetic limiting groove and the stepped iron core, so that the electromagnetic force of the relay in later pickup can be greatly reduced on the premise of ensuring that the relay has enough electromagnetic force in early pickup through the magnetic flux path, thereby effectively reducing the noise of the relay at work.

Description

technical field [0001] The invention belongs to the technical field of relays, in particular to a low-noise relay. Background technique [0002] The relay mainly controls the switching of the circuit by controlling the pull-in and disconnection of the relay, and plays the role of a switch. Now a common relay, its composition includes connection base, L-shaped yoke, moving reed, armature, coil bobbin, coil, iron core, static contact, moving contact, static reed, coil control pin, etc. . The magnetic circuit system of this kind of relay is usually composed of an L-shaped yoke, an armature, a cylindrical iron core, a coil, and a coil bobbin. , the cylindrical iron core is fixedly connected with the transverse part of the yoke through the hole, and the shape of the moving reed is similar to L-shaped, and one end of it is fixedly connected with the vertical part of the yoke, and the other end is fixedly connected with the armature. When the coil is energized, the magnetic flux...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/36
CPCH01H50/36
Inventor 徐照平杨利杰刘梁余后亮朱祥彬郭贺
Owner NANJING UNIV OF SCI & TECH
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