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Electromagnetic release and electrical protection equipment comprising same

An electromagnetic release and magnetic yoke technology, applied in electrical components, protection switches, emergency protection devices, etc., can solve the problem of unstable use of electromagnetic release, achieve easy structural design and production, improve stability, Reliable and stable work

Pending Publication Date: 2021-08-06
SANYOU CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome at least one defect described in the above-mentioned prior art, the first object of the present invention is to provide an electromagnetic release to solve the problem of unstable use of the existing electromagnetic release, and at the same time, the electromagnetic release can be used For low current, low power consumption conditions

Method used

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  • Electromagnetic release and electrical protection equipment comprising same
  • Electromagnetic release and electrical protection equipment comprising same
  • Electromagnetic release and electrical protection equipment comprising same

Examples

Experimental program
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Embodiment 1

[0053] refer to Figure 1~6 , the present invention discloses an electromagnetic tripper, comprising a housing 1, a tripping assembly 2 arranged in the housing 1, the tripping assembly 2 includes a U-shaped yoke 201, an armature 202, a permanent magnet 203, a reset Spring 204, excitation coil 205, magnetic yoke 201 has two branches 2011 arranged in parallel and a connection portion 2012 between the two branches 2011, the two branches 2011 of magnetic yoke 201 have polar surfaces 20111, and excitation coil 205 is arranged on the magnetic on the yoke 201;

[0054] The armature 202 is movable relative to the yoke 201, and can stick to the bipolar surface 20111 to form a closed magnetic circuit;

[0055] Return spring 204 is connected with armature 202, see figure 2 , to provide elastic force for the armature 202 to separate from the bipolar surface 20111 when the electromagnetic release is in a tripped state;

[0056] refer to image 3 , when the electromagnetic tripper is i...

Embodiment 2

[0125] This embodiment discloses an electrical protection device, which includes any electromagnetic release in Embodiment 1, and the electrical protection device may be a leakage protection switch.

[0126] By adopting an electromagnetic tripper with higher stability and suitable for driving and triggering by small currents, the electrical protection device can have the advantages of strong stability in use and high sensitivity.

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Abstract

The invention discloses an electromagnetic release and electrical protection equipment comprising the same, and relates to the technical field of electromagnetic tripping devices. The electromagnetic release provided by the invention comprises a U-shaped magnet yoke, an armature, a permanent magnet and a reset spring, and further comprises an air gap maintaining device which is used for enabling an air gap between the permanent magnet and the armature to be a constant preset value when the armature is attached to the two polar surfaces of the magnet yoke end, when the armature is attached to the polar surfaces of the two branches of the magnet yoke through the air gap maintaining device, the air gap between the permanent magnet and the armature is constantly kept at a preset air gap value, so that the attraction force of the magnet to the armature is constant, the work of the electromagnetic release is reliable and stable, the balance moment of the reset spring and the magnet is conveniently and accurately designed, the moment balance of the reset elastic piece and the permanent magnet can be destroyed by adopting a small current, the scheme of the low-power electromagnetic release becomes possible, and the low-power electromagnetic release is suitable for low-power-consumption and low-current use working conditions.

Description

technical field [0001] The present invention relates to the technical field of electromagnetic tripping devices, in particular to an electromagnetic tripper and electrical protection equipment including the electromagnetic tripper. Background technique [0002] Electromagnetic release is a kind of release, which is mainly used for short-circuit protection of circuits. [0003] In the prior art, the Chinese patent with the notification number CN1763884B discloses an electromagnetic tripping device and an electrical protection device including the device. The electromagnetic tripping device includes a U-shaped armature, a tripping coil, a blade, a spring of the blade, The reset pin of the leaf plate, the leaf plate pivots relative to the armature, and can move to the polar surfaces at both ends of the armature to close the magnetic circuit composed of the armature and the leaf plate, and the tripping coil surrounds this circuit The casing is installed; when standing still, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/24H01H71/32H01H71/02H01H71/08
CPCH01H71/02H01H71/08H01H71/24H01H71/2472H01H71/32
Inventor 唐俊平任世刚于荣爱傅天年何明荣
Owner SANYOU CORP LTD
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