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Title:
A MAGNETIC LATCHING EXTERNAL RELAY
Document Type and Number:
WIPO Patent Application WO/2008/113245
Kind Code:
A1
Abstract:
A magnetic latching external relay for a kilowatt-hour meter is composed of an electromagnetic system, a contact system, outlet terminals and a shell ( 25 ). The electromagnetic system and the contact system are located inside the shell ( 25 ). The outlet terminals are distributed on the two sides of the shell ( 25 ). One end of the outlet terminals has a style corresponding with the leading-out ends of the kilowatt-hour meter, and the other end has a style corresponding with the connecting terminals inside the kilowatt-hour meter. A plunger magnetic pole structure for a relay includes a magnetic yoke ( 19 ), an armature ( 20 ), at least one magnetic pole ( 18,23 ) and at least one coil ( 16 ), wherein the magnetic pole ( 18,23 ) is fixed, and the armature ( 20 ) is connected with a connecting link ( 17 ) and transmits to a driving rod ( 10 ) by the connecting link ( 17 ) to realize the turnon and switchover of contact heads. The peripheral of the plunger magnetic pole structure is a close magnetic circumstance composed of a magnetic plate ( 15 ) and the magnetic yoke ( 19 ).

Inventors:
SUN XIAOZHI (CN)
ZHANG ZIYOU (CN)
XIE SHICAI (CN)
Application Number:
PCT/CN2008/000171
Publication Date:
September 25, 2008
Filing Date:
March 20, 2008
Export Citation:
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Assignee:
ZHEJIANG PRESTIGE ELECTRONIC C (CN)
SUN XIAOZHI (CN)
ZHANG ZIYOU (CN)
XIE SHICAI (CN)
International Classes:
H01H51/01; H01H50/14; H01H50/16; H01H50/58
Foreign References:
CN2872582Y2007-02-21
CN2485779Y2002-04-10
CN2726099Y2005-09-14
CN201017827Y2008-02-06
CN201060808Y2008-05-14
Attorney, Agent or Firm:
BEIJING BEIXIN-ZHICHENG INTELLECTUAL PROPERTY AGENT CO., LTD (Xicheng District, Beijing 5, CN)
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