Title:
BATTERY PROTECTION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2013/016974
Kind Code:
A1
Abstract:
A battery protection circuit comprises several monitor units (100) and a battery terminal controller (200). Each monitor unit (100) is in parallel connection with the same number of single batteries. The monitor unit (100) comprises a voltage collection module (101) and an equalizer circuit (102) that are in parallel connection with a single battery, the voltage collection module (101) connecting a voltage of the single battery and outputting a collection result, and the equalizer circuit (102) equalizing an electric quantity of each single battery. The battery terminal controller (200) is in series connection with multiple batteries, and controls an on state of charge or discharge of all the multiple batteries according to the collection result. The battery protection circuit can implement overcharge, overdischarge and short circuit protection on multiple batteries in series connection, and can equalize the electric quantity of each single battery. The battery protection circuit has low costs, is easy to install and maintain, and is highly reliable, thereby facilitating the standardization of lithium battery modules.
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Inventors:
JIANG YE (CN)
YI SHOUZHONG (CN)
TU JIJUN (CN)
ZHANG PENG (CN)
YI SHOUZHONG (CN)
TU JIJUN (CN)
ZHANG PENG (CN)
Application Number:
PCT/CN2012/076148
Publication Date:
February 07, 2013
Filing Date:
May 28, 2012
Export Citation:
Assignee:
SHENZHEN CT POWER TECH CO LTD (CN)
JIANG YE (CN)
YI SHOUZHONG (CN)
TU JIJUN (CN)
ZHANG PENG (CN)
JIANG YE (CN)
YI SHOUZHONG (CN)
TU JIJUN (CN)
ZHANG PENG (CN)
International Classes:
H02J7/00; H02H7/18
Foreign References:
| CN202190065U | 2012-04-11 | |||
| CN101471575A | 2009-07-01 | |||
| CN101830269A | 2010-09-15 | |||
| JP2002044873A | 2002-02-08 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE (CN)
深圳中一专利商标事务所 (CN)
深圳中一专利商标事务所 (CN)
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Claims: