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Patent Searching and Data


Title:
OVER-CURRENT PROTECTION DEVICE OF SECONDARY BATTERY, PROTECTION METHOD THEREOF, AND BATTERY PACK THEREOF
Document Type and Number:
WIPO Patent Application WO/2013/018972
Kind Code:
A1
Abstract:
An over-current protection device of a second battery includes a main relay, an auxiliary relay connected to the main relay in parallel, and a controller, which protects a battery module by detecting a current restriction resistance and over-current, connected to the auxiliary relay in series. The controller turns on the main relay and turns off the auxiliary relay under normal conditions. When over-current is detected, the current restricted through the current restriction resistance flows by the controller turning on the auxiliary relay and turning off the main relay.

Inventors:
BAEK SEONGMUN (KR)
Application Number:
KR2012/002483
Publication Date:
February 07, 2013
Filing Date:
April 03, 2012
Export Citation:
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Assignee:
LG CHEMICAL LTD (150-721, KR)
BAEK SEONGMUN (KR)
International Classes:
H02H9/02; B60L50/15; H01M10/48
Foreign References:
KR0184799B1
KR20110037058A2011-04-13
JPS6450768A1989-02-27
JP2008099528A2008-04-24
KR20100059685A2010-06-04
KR20050072276A2005-07-11
KR20110054965A2011-05-25
Other References:
See also references of EP 2701258A4
Attorney, Agent or Firm:
CHUNG, Soon-Sung (135-080, KR)
정순성 (135-080, KR)
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Claims: