The invention relates to a device for parallel use of battery packs and a corresponding parallel use method of the battery packs, the device is provided with a plurality of battery pack interfaces, the battery packs can be respectively connected into the battery pack interfaces, the connected battery packs are mutually charged through a current-limiting and voltage-sharing access, so that the voltage difference among the battery packs is reduced, and when a management module detects that the voltage difference of the battery packs is smaller than a threshold value, the battery packs are connected into the battery pack interfaces. The first relay module is controlled to be closed, the main path is connected, the battery packs are connected in parallel through the main path, the voltage difference of the battery packs is small at the moment, and the ignition problem is avoided. The electric vehicle interface of the device can be connected with an electric vehicle, and the parallel battery packs supply power to the electric vehicle, so that the endurance can be increased. A charger can be connected into the charger interface of the device, the management module can detect the voltage of the battery packs and control the first relay module, so that the charger charges the low-voltage battery packs preferentially, and when the voltage difference of the battery packs is smaller than a threshold value, the first relay module is controlled to charge all the battery packs at the same time. And the parallel battery packs are charged in a balanced manner.

    本发明涉及电池包并联使用的装置和对应的电池包并联使用方法,装置具有多个电池包接口,可分别接入电池包,接入的电池包先经过限流均压通路互相充电,使电池包彼此间电压差降低,当管理模块探测到电池包电压差小于阈值时,控制第一继电器模块闭合,使主通路接通,让电池包通过主通路并联,此时电池包电压差较小,不会发生打火的问题。装置的电动车接口可与电动车接通,由并联的电池包对电动车供电,可增加续航。装置的充电器接口可接入充电器,管理模块可探测电池包电压,控制第一继电器模块,使充电器优先对低电压的电池包充电,当电池包电压差小于阈值时,再控制第一继电器模块对所有电池包同时充电。使并联的电池包充电均衡。


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    Title :

    Apparatus and method for parallel use of battery packs


    Additional title:

    用于电池包并联使用的装置和方法


    Contributors:
    ZHAO WU (author) / ZHANG YONGCHUAN (author) / LIN QI (author) / SONG YONG (author)

    Publication date :

    2024-06-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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