An apparatus and a system for balancing energy in a battery pack are provided, to implement balanced energy distribution among individual batteries in a battery pack, so as to avoid problems of a complex control structure and high resource overheads in using a prior-art solution of implementing balanced energy distribution among the individual batteries in the battery pack. The apparatus includes: a transmitting coil, configured to transmit an electromagnetic wave generated by an input first alternating current to multiple receiving coils; the multiple receiving coils, where parameter values of all receiving coils of the multiple receiving coils are the same, all the receiving coils are coupled to the transmitting coil at a same coupling strength, and each receiving coil is configured to receive the electromagnetic wave transmitted by the transmitting coil, and generate and output a second alternating current according to the electromagnetic wave; and multiple rectifiers, where the multiple rectifiers are connected to the multiple receiving coils in a one-to-one correspondence, and each of the multiple rectifiers is configured to convert the input second alternating current into a direct current, and output the direct current to one individual battery in the battery pack, where the multiple rectifiers and multiple individual batteries in the battery pack are in a one-to-one correspondence.


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    Title :

    BATTERY PACK ENERGY BALANCING DEVICE AND SYSTEM


    Additional title:

    BATTERIEPACK-ENERGIEAUSGLEICHSVORRICHTUNG UND -SYSTEM
    DISPOSITIF ET SYSTÈME D'ÉQUILIBRAGE D'ÉNERGIE DE BLOC-BATTERIE


    Contributors:
    YANG RUI (author) / LIU MING (author) / LIU XIAOKANG (author)

    Publication date :

    2020-08-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / H01F MAGNETS , Magnete / 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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