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Patent Searching and Data


Title:
OVERVOLTAGE PROTECTOR AND BATTERY PROTECTIVE SYSTEM USING THE SAME
Document Type and Number:
Japanese Patent JP2003234055
Kind Code:
A
Abstract:

To provide an overvoltage protector of high reliability that has new overvoltage protective construction and that can be made compact and low in price.

The overvoltage protector 51 which prevents a secondary battery from overvoltage includes a case body 52, a resin cover 53, external terminals 56, 57, 58 and a piezo-electric actuator 54. The external terminals 56, 57 are electrically connected to each electrode of the piezo-electric actuator 54 respectively, and the external terminal 58 has a fixed contact 60. The piezo-electric actuator 54 is supported in a cantilever manner within the case body 52, and when overvoltage is applied between the external terminals 56, 57, a movable contact 61 is released from the fixed contact 60 displacing its end.


Inventors:
Inae, Masao
Baba, Hiroya
Application Number:
JP2002000033478
Publication Date:
August 22, 2003
Filing Date:
February 12, 2002
Export Citation:
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Assignee:
TEXAS INSTR JAPAN LTD
International Classes:
H01H57/00; H01M10/42; H01M10/44; H01L41/09; H02H9/04; (IPC1-7): H01H57/00; H01M10/44
Attorney, Agent or Firm:
片寄 恭三