The invention discloses a series constant-voltage charging system and method. The series constant-voltage charging system comprises a constant-current charging module and a constant-voltage charging module; a voltage detection module and a current detection module, wherein the voltage detection module is electrically connected with the constant current charging module, and the current detection module is electrically connected with the constant voltage charging module; and a switching module which is used for connecting the voltage detection module and the current detection module to the battery pack, so that the switching module selects the constant-current charging module to be connected to the battery pack or the constant-voltage charging module to be connected to the battery pack; the voltage detection module and the current detection module are used for controlling each single battery in the battery pack to be connected to or disconnected from the constant-current charging module and the constant-voltage charging module according to the detected voltage or current state of the single battery in the battery pack; and the working voltage value of the constant-voltage charging module is the voltage of the single battery which reaches the constant-voltage point firstly.

    本发明公开一种串联恒压充电系统和方法,包括:一恒流充电模块和一恒压充电模块;一电压检测模块和一电流检测模块,所述电压检测模块电性连接所述恒流充电模块,所述电流检测模块电性连接所述恒压充电模块;一切换模块,连接所述电压检测模块和所述电流检测模块至所述电池组,使所述切换模块选择所述恒流充电模块接入所述电池组或所述恒压充电模块接入所述电池组;所述电压检测模块和所述电流检测模块根据检测到的所述电池组内的单体电池的电压或电流状态来控制所述电池组内每一单体电池接入或断开所述恒流充电模块和所述恒压充电模块;所述恒压充电模块工作的电压值为最先到达恒压点的所述单体电池的电压。


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    Title :

    Series constant-voltage charging system and method


    Additional title:

    一种串联恒压充电系统和方法


    Contributors:
    MAO GUANGFU (author) / TANG RUNPING (author)

    Publication date :

    2021-07-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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