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Patent Searching and Data


Title:
ELECTROMAGNETIC DEVICE FOR MOLDED CASE CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2017/206426
Kind Code:
A1
Abstract:
Provided is an electromagnetic device for a molded case circuit breaker, the electromagnetic device comprising an electromagnetic mechanism (1) and a regulating mechanism (2) which are connected in a driving manner. The electromagnetic mechanism (1) comprises an iron core (10), an armature (11), a rotating member (12) and a mounting bracket (13), and the armature (11) is connected to a drag rod (3) of the circuit breaker to bring the circuit breaker to trip in the event of a short circuit. One end of the armature (11) is elastically connected to the iron core (10), and the other end of the armature (11) is cocked, so as to form an air gap between the armature and the iron core (10). A cam (21) of the regulating mechanism (2) is mounted on the mounting bracket (13), the middle portion of the rotating member (12) is pivotally mounted on the mounting bracket (13) above the armature (11), and a driving end and a triggering end located at two ends of the rotating member (12) are arranged on a driving surface of the cam (21) and the cocked end of the armature (11) respectively. The cam (21) of the regulating mechanism (2) is rotated to bring both ends of the rotating member (12) of the electromagnetic mechanism (1) to bob with the middle portion as a fulcrum for movement, and the triggering end of the rotating member (12) drives the cocked end of the armature (11) to be able to move up and down relative to the iron core (10). The electromagnetic device for the molded case circuit breaker has a simple structure and is flexible enough to be regulated.

Inventors:
ZHU, Xinglun (No.1, CHINT Road CHINT Industrial Zone, North Baixian, Yueqing Zhejiang 3, 325603, CN)
LIANG, Guangyue (No.1, CHINT Road CHINT Industrial Zone, North Baixian, Yueqing Zhejiang 3, 325603, CN)
YAN, Lijun (No.1, CHINT Road CHINT Industrial Zone, North Baixian, Yueqing Zhejiang 3, 325603, CN)
Application Number:
CN2016/103108
Publication Date:
December 07, 2017
Filing Date:
October 24, 2016
Export Citation:
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Assignee:
ZHEJIANG CHINT ELECTRICS CO., LTD. (No.1, CHINT Road CHINT Industrial Zone, North Baixian, Yueqing Zhejiang 3, 325603, CN)
International Classes:
H01H71/24; H01H71/74
Foreign References:
CN205789813U2016-12-07
CN204155885U2015-02-11
US20080122563A12008-05-29
CN201773800U2011-03-23
CN201084663Y2008-07-09
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)
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