The invention discloses a new energy automobile lithium battery charging protection circuit and a protection method thereof, and belongs to the field of new energy automobiles. An equalization circuitof the new energy automobile lithium battery comprises an acquisition unit, a short circuit detection unit, a protection unit and an equalization unit, wherein the acquisition unit comprises a voltage acquisition module and a current acquisition module; the voltage acquisition module is used for acquiring a voltage signal when the lithium battery is charged and transmitting the signal; the current acquisition module is used for acquiring a current signal when the battery is charged and transmitting the signal; when the equalization unit charges a plurality of lithium battery packs, the charging voltage of each battery pack is ensured to be consistent, so that the service life and the performances of each battery pack are protected; voltage and current acquisition is carried out when the lithium battery is charged, and stabilization is carried out through the equalization unit; and meanwhile, the battery is timely protected during charging by utilizing overvoltage protection and over-current protection, so that the service life of the lithium battery is prolonged, and the performances of the lithium battery are improved.
本发明公开了一种新能源汽车锂电池充电保护电路及其保护方法,属于新能源汽车领域;一种新能源汽车锂电池的均衡电路及其控制方法包括:采集单元、短路检测单元、保护单元、以及均衡单元;其中,采集单元包括:电压采集模块和电流采集模块;电压采集模块进行锂电池充电时的电压信号采集,并进行信号传输;电流采集模块进行电池充电时的电流信号采集,并进行信号传输;均衡单元进行多个锂电池组进行充电时,保证每节电池组的充电电压一致,从而保护每个电池组的使用寿命和性能;本发明通过对锂电池充电时进行电压电流采集,并通过均衡单元稳定;同时利用过压保护与过流保护进行充电时对电池的及时保护,从而提高锂电池的使用寿命和性能。
New energy automobile lithium battery charging protection circuit and protection method thereof
一种新能源汽车锂电池充电保护电路及其保护方法
2020-07-24
Patent
Electronic Resource
Chinese
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