Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SELF-BALANCING STRUCTURE CAPABLE OF BALANCING PRESSING FORCES ON DOUBLE-BREAK CONTACT BRIDGE
Document Type and Number:
WIPO Patent Application WO/2018/095315
Kind Code:
A1
Abstract:
A self-balancing structure capable of balancing pressing forces on a double-break contact bridge comprises a rotor support frame, a contact bridge, and two elastic pieces. The contact bridge 2 comprises: two contact ends arranged symmetrically about the center of the contact bridge; and a middle portion installed via a pivot axle on the rotor support frame. A guiding track is provided between the rotor support frame and the contact bridge, and has a length exceeding an outer diameter of the pivot axle. Two adjusting parts are arranged on an upper side and a lower side of the middle portion of the contact bridge and symmetrically about the center of the contact bridge, and operate together with the two elastic pieces. Two ends of each of the elastic pieces act on the rotor support frame and the adjusting part, respectively. An angle β is formed between a contact surface of the contact end contacting a stationary contact and a length direction of the guiding track, wherein 60° ≤ β ≤ 120°. An angle γ formed arranged between a direction of a force acting on the adjusting part of the elastic piece and the length direction of the guiding track, wherein 60° ≤ γ ≤ 120°. The self-balancing structure capable of balancing pressing forces on a double-break contact bridge in the invention is simple in structure, and can ensure reliable contact of the double-break contact bridge.

Inventors:
XU, Wenliang (No. 1, Chint Road Chint,Industrial Zone, North Baixian, Yueqing Zhejiang 3, 325603, CN)
AO, Denggui (505 Wuning Road, Putuo District, Shanghai 3, 200063, CN)
GU, Xiang (No. 1, Chint Road Chint,Industrial Zone, North Baixian, Yueqing Zhejiang 3, 325603, CN)
ZHOU, Rongwei (No. 1, Chint Road Chint,Industrial Zone, North Baixian, Yueqing Zhejiang 3, 325603, CN)
Application Number:
CN2017/112176
Publication Date:
May 31, 2018
Filing Date:
November 21, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ZHEJIANG CHINT ELECTRICS CO., LTD. (No. 1, Chint Road Chint Industrial Zone, North Baixian, Yueqing Zhejiang 3, 325603, CN)
SEARI ELECTRIC TECHNOLOGY CO., LTD. (505 Wuning Road, Putuo District, Shanghai 3, 200063, CN)
International Classes:
H01H73/04
Foreign References:
CN206322595U2017-07-11
CN101958211A2011-01-26
CN1949433A2007-04-18
US7221246B22007-05-22
CN1971801A2007-05-30
CN1598997A2005-03-23
US20070251809A12007-11-01
Attorney, Agent or Firm:
BEIJING JOYAN INTELLECTUAL PROPERTY OFFICE (Room 2607, Tower A Millennium Plaza,No. 72 Xisanhuan North Road, Haidian District, Beijing 8, 100048, CN)
Download PDF: