STRONG-CURRENT FIXED CONTACT DEVICE OF HIGH-VOLTAGE GROUND SWITCH

Title:

STRONG-CURRENT FIXED CONTACT DEVICE OF HIGH-VOLTAGE GROUND SWITCH

Document Type and Number:

WIPO Patent Application WO/2014/071791

Kind Code:

A1

Abstract:

A strong-current fixed contact device of a high-voltage ground switch comprises a base (1); two opposite contact plates (2) are disposed on the base, and the two contact plates are perpendicular to an upper end surface of the base; each of the two contact plates is provided with a support plate (3) whose lower portion is relatively fixed with the base; two sets of coaxially superimposed disc springs (5) are disposed between an upper portion of each support plate and the contact plate on the same side. In the fixed contact device, by disposing two sets of disc springs on single side, a contact area between the contact plate of the fixed contact and a blade of a moving contact increased. The holding capability between the contact plate and the blade of the moving contact is effectively improved; compared with the solution of a single-side single-set disc spring having the same pressure, the present invention improves the service life of the product while ensuring the connection performance of the fixed contact.

Inventors:

JIANG CHUNWEI (CN)

Application Number:

PCT/CN2013/085179

Publication Date:

May 15, 2014

Filing Date:

October 14, 2013

Export Citation:

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Assignee:

JIANGSHAN ELECTRIC TECHNOLOGY DEV CO LTD (CN)

International Classes:

H01H1/50; H01H1/06; H01H1/42

Domestic Patent References:

WO2002080206A2

2002-10-10

Foreign References:

CN202977183U	2013-06-05
CN201622942U	2010-11-03
CN102044348A	2011-05-04
CN202339844U	2012-07-18
GB2190545A	1987-11-18
JPS6193516A	1986-05-12
CN201622942U	2010-11-03

Other References: