The invention relates to a power battery pack charging device and a control method thereof. The power battery pack charging device comprises a power supply module, a third branch line and a fourth branch line; the power supply module comprises at least two charging contactors, the at least two charging contactors are connected in series, and any one of the at least two charging contactors is connected in parallel with a plurality of strings of serially connected lithium iron phosphate cells; the third branch line and the fourth branch line are both connected with a fast charging interface, the third branch line is connected with a negative electrode bus of the power supply module, and the fourth branch line is connected with a positive electrode bus of the power supply module; and the at least two charging contactors are used for charging the power supply module in a step-by-step mode in a charging mode. Through the arrangement of the at least two charging contactors, a step-by-step charging mode is adopted, the problem that a high-voltage power supply is difficult to charge in an existing charging pile can be solved, and the control method is mature and easy to understand in logic and relatively low in cost.

    本发明涉及一种动力电池组充电装置及其控制方法。所述动力电池组充电装置包括包括电源模块、第三支线和第四支线;所述电源模块包括至少两个充电接触器,至少两个所述充电接触器之间串联,至少两个所述充电接触器中任一所述充电接触器与多串串联的磷酸铁锂电芯并联;所述第三支线和所述第四支线均与快充接口连接,所述第三支线与所述电源模块负极母线连接,所述第四支线与所述电源模块正极母线连接;至少两个所述充电接触器,用于在充电模式下以分步的方式对电源模块进行充电。本发明通过至少两个充电接触器的设置,采用分步骤充电的方式,可以解决高压电源在现有充电桩充电难的问题,且控制方法逻辑通熟易懂,成本相对来说较低。


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    Title :

    Power battery pack charging device and control method thereof


    Additional title:

    一种动力电池组充电装置及其控制方法


    Contributors:
    YANG ZHIGANG (author) / WANG YE (author) / ZHAO LILI (author)

    Publication date :

    2023-07-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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