The invention relates to the technical field of forklift lithium batteries, particularly to a forklift lithium battery pack parallel topological structure, which comprises a high-voltage box, a firstbattery box and a second battery box, wherein the high-voltage box is provided with two battery positive interfaces, two battery negative interfaces, two charging positive interfaces, two charging negative interfaces connected in parallel, two charging communication ports, a discharging negative interface, a whole vehicle communication port, two discharging relays connected in parallel, two charging relays connected in parallel, two fuses connected in parallel and a DCDC module. According to the invention, a mode of first parallel connection, then series connection and then parallel connectionis adopted, and the control logic is adopted, so that forklift battery charging and discharging are more balanced, the difference between battery packs is reduced, only one set of management system is needed, the production cost is low, the system control logic is relatively simple, wiring is safe, the unbalanced sparking phenomenon does not exist, use is flexible and convenient, and large-current charging can be achieved; and by adopting the control method, the charging and discharging of the battery are more balanced.

    本发明涉及叉车锂电池技术领域,尤其是一种叉车锂电池组并联拓扑结构,包括高压箱、一号电池箱、二号电池箱所述高压箱具有两个电池正接口、两个电池负接口、两个充电正接口、两个并联连接的充电负接口、两个充电通讯口、一个放电负接口、一个整车通讯口、两个并联连接的放电继电器、两个并联连接充电继电器、两个并联连接的保险丝、DCDC模块。本装置使用先并后串再并的方式,并采用以上控制逻辑,使叉车电池充放电更加均衡,减小电池组之间的差异,只需要一套管理系统,生产成本低,系统控制逻辑相对简单,接线安全,不存在不平衡打火现象,使用灵活方便,可以大电流充电,同时采用该种控制方法,使电池充放电更加均衡。


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    Titel :

    Forklift lithium battery pack parallel topological structure and charging and discharging control method


    Weitere Titelangaben:

    一种叉车锂电池组并联拓扑结构及充放电控制方法


    Beteiligte:
    WANG ZHIHAI (Autor:in) / HONG LEI (Autor:in) / XIAO LIANG (Autor:in) / WANG LI (Autor:in)

    Erscheinungsdatum :

    2021-03-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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