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Title:
ARC EXTINCTION MAGNETIC CIRCUIT HAVING MISALIGNED MAGNETIC STEEL AND DIRECT-CURRENT RELAY THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/155637
Kind Code:
A1
Abstract:
Disclosed are an arc extinction magnetic circuit having misaligned magnetic steel and a direct-current relay thereof. The arc extinction magnetic circuit comprises a contact portion. The contact portion comprises two stationary contacts respectively for providing current inflow and outflow and a movable contact spring. Two ends of the movable contact spring respectively cooperate with the two stationary contacts. Each of the outer sides of the two ends in the length direction of the movable contact spring is respectively provided with a piece of first magnetic steel. Each of the outer sides of the two ends in the width direction of the movable contact spring is respectively provided with a piece of second magnetic steel, and the two pieces of second magnetic steel are misaligned. The two pieces of first magnetic steel face each other with opposite poles, and the two pieces of second magnetic steel also face each other with opposite poles. In the present invention, two pieces of magnetic steel in the middle in the length direction of the movable contact spring are misaligned, the distance between the two adjacent pieces of magnetic steel is reduced, the strength of a magnetic field between the two adjacent pieces of magnetic steel is then enhanced, thereby greatly enhancing the strength of an arc extinction magnetic field and the strength of the magnetic field which provides ampere force for the movable spring, and substantially increasing the magnetic utilization rate of the magnetic steel.

Inventors:
ZHONG, Shuming (No.560-564 Donglin Road Jimei North Industry District, Xiamen, Fujian 1, 361021, CN)
SHI, Shengsheng (No.560-564 Donglin Road Jimei North Industry District, Xiamen, Fujian 1, 361021, CN)
Application Number:
CN2016/077945
Publication Date:
October 06, 2016
Filing Date:
March 31, 2016
Export Citation:
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Assignee:
XIAMEN HONGFA ELECTRIC POWER CONTROLS CO., LTD. (No.560-564 Donglin Road Jimei North Industry District, Xiamen, Fujian 1, 361021, CN)
International Classes:
H01H50/38
Foreign References:
CN204558373U2015-08-12
CN104882335A2015-09-02
CN104091726A2014-10-08
CN102246250A2011-11-16
Attorney, Agent or Firm:
SHOUCHUANG JUNHE PATENT AGENT CO.,LTD.XIAMEN (Room 606, No.23-3 Wanghai Road, Xiamen Software Park Phase Ⅱ, Siming Distric, Xiamen City Fujian 2, 361012, CN)
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