Oil protection direct-action electricity relay

A direct-acting, relay technology, applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve the problems of unusable relays, contact oxidation, contact damage, etc., achieve good arc extinguishing effect and prolong service life , long service life effect

Inactive Publication Date: 2009-06-10
周柔刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical part of the relay is not easily damaged, but the contacts will generate an arc when the current is broken, which will cause the contacts to be partially oxidized, melted and ablated at high temperature, and eventually the contacts will be damaged, and the relay cannot continue to be used

Method used

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  • Oil protection direct-action electricity relay

Examples

Experimental program
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Effect test

Embodiment Construction

[0011] As shown in the figure, in the relay of the embodiment, the end cover 3 and the bottom case 4 are fastened into a cylindrical shell, and the outer shell 2 is wrapped around the seams, so as to form a closed cylindrical shell.

[0012] Two static contacts 1 are fixed side by side on the inner wall of the closed cylindrical shell. The movable contact 11 is cylindrical and has a cavity inside, in which a magnet 5 is embedded. For heat insulation and shock resistance, the magnet 5 and A magnet buffer bush 10 made of silicon rubber is also provided between the moving contacts 11 , and the moving contacts 11 are placed in a closed cylindrical shell, and the inner cavity of the shell is filled with transformer oil 12 .

[0013] The above housing is fixed above a cylindrical electromagnet, which consists of a coil 7, an iron core 6, and a cylindrical iron yoke 9. The iron core 6 is fixed on the cylindrical iron yoke 9, and the upper edge of the cylindrical iron yoke 9 The muzzl...

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PUM

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Abstract

The invention provides an oil protection directly-operated relay, which comprises a moving contact, fixed contacts, coils and an iron yoke, wherein the two fixed contacts are straightly fixed on the inner wall of the end face of a closed cylindrical shell side by side; the moving contact adopts a cylindrical shape; the inside of the moving contact is provide with a magnet; an inner cavity of the closed cylindrical shell is filled with transformer oil; the shell is fixed above a straight-cylinder type electric magnet; an iron core of the electric magnet and the magnet in the moving contact are positioned in the same axial line; and the iron core is positioned under the magnet. The transformer oil has excellent arc extinction function, and the contacts have long service life, thereby prolonging the service life of the relay.

Description

technical field [0001] The present invention relates to switch electrical, especially to the improvement of direct acting relay. Background technique [0002] Relays are widely used in electrical equipment to control large currents. Relays that control large currents generally adopt a direct-acting structure, that is, the armature operates in a direct-acting manner. The mechanical part of the relay is not easily damaged, but the contacts will generate an arc when the current is broken, which will cause the contacts to be partially oxidized, melted and ablated at high temperature, and eventually the contacts will be damaged, and the relay cannot continue to be used. Contents of the invention [0003] The object of the present invention is to provide a relay with an arc extinguishing agent, which prolongs the service life of the relay by protecting contacts. [0004] The solution of the present invention is: an oil-protected direct-acting relay, including a moving contact,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/54H01H9/30
Inventor 周柔刚
Owner 周柔刚
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