ULTRA-HIGH-SPEED MECHANICAL SWITCH - STATE GRID CORP CHINA

Title:

ULTRA-HIGH-SPEED MECHANICAL SWITCH

Document Type and Number:

WIPO Patent Application WO/2016/058550

Kind Code:

A1

Abstract:

An ultra-high-speed mechanical switch comprises an insulation casing (1) that is internally provided with an electromagnetic operating mechanism used for driving switch pull rods (191, 192) to perform switch-opening and switch-closing movements. The electromagnetic operating mechanism comprises a movable iron core (90) in transmission connection with the switch pull rods, and a sealed cavity through which the movable iron core moves in a reciprocating manner to implement switch-opening and switch-closing. When moving to either end of the sealed cavity, the movable iron core is respectively at a switch-closed position and a switch-opened position. The movable iron core is a moving plate that divides the sealed cavity into two portions. Through holes (610) that connect the inside and the outside of the sealed cavity and are used for feeding or discharging buffering media are formed at a switch-opening position and a switch-closing position or at positions close to said opening position and said closing position on a circumferential wall of the sealed cavity. By means of the ultra-high-speed mechanical switch, the switch pull rods can be effectively buffered in the opening and closing movements, and mechanical impact is avoided.

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Inventors:

CHENG TIEHAN (CN)
ZHANG YOUPENG (CN)
MA ZHIHUA (CN)
HU YANTAO (CN)
SUN KEKE (CN)
MEN BO (CN)
ZHAO XIAOMIN (CN)
LIU CHANG (CN)

Application Number:

PCT/CN2015/092028

Publication Date:

April 21, 2016

Filing Date:

October 15, 2015

Export Citation:

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Assignee:

STATE GRID CORP CHINA (CN)
PINGGAO GROUP CO LTD (CN)
NORTH CHINA GRID COMPANY LTD (CN)

International Classes:

H01H31/02

Domestic Patent References:

WO2014141901A1

2014-09-18

Foreign References:

CN104347304A	2015-02-11
CN204332796U	2015-05-13
CN102214522A	2011-10-12

Attorney, Agent or Firm:

ZHENGZHOU RUIXIN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
郑州睿信知识产权代理有限公司 (CN)

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