The invention discloses a lithium-ion battery pack system with high electromagnetic compatibility. The lithium-ion battery pack system comprises an outer system frame, a plurality of battery modules, a local electric control unit (LECU) assembly, a battery management unit (BMU) assembly, a high-voltage wire bundle, a low-voltage wire bundle, a communication wire bundle and a module sampling wire bundle, wherein a multi-layer structure is adopted by the high-voltage wire bundle; and a vertical wiring mode is adopted by the high-voltage wire bundle and the low-voltage wire bundle, so that the radio frequency interference resistance of the system is enhanced. A magnetic ring is arranged on a low-voltage connector, so that the conducted interference resistance and the bulk current injection resistance of the system are enhanced; and external conducted emission of high-frequency noise in the system through the low-voltage wire bundle can also be reduced. A twisted-pair connection mode is adopted by the communication wire bundle, so that the radio frequency interference resistance of the system is enhanced; and external radiated emission of high-frequency noise is also reduced. Through a sealing mode and a grounding mode of a metal housing of a printed circuit board (PCB) in the BMU assembly, the radio frequency interference resistance of the PCB and the conducted interference resistance of the system are enhanced.


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    Title :

    Lithium-ion battery pack system with high electromagnetic compatibility


    Contributors:
    YU CHEN (author) / HOU MIN (author) / LI LI NAN (author) / NA WEI (author) / CAO HUI (author) / WANG DONG (author)

    Publication date :

    2015-12-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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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