The invention discloses a battery heating system and an electric vehicle. The system comprises a power battery pack, the power battery pack comprises a first battery pack and a second battery pack which are connected in series, and a center line is led out from the series connection point of the first battery pack and the second battery pack; each buck-boost inverter comprises an inverter bridge and an inductor, the n inverter bridges are connected in parallel to form a first confluence end and a second confluence end, the first confluence end and the second confluence end are correspondingly connected with the positive electrode and the negative electrode of the power battery pack, one end of the inductor is connected with the midpoint of the corresponding inverter bridge, and the other end of the inductor is connected with the midline, n is an integer greater than 1; and the controller is connected with the control end of the inverter bridge and is used for carrying out phase dislocation control on the n buck-boost inverters so as to realize simultaneous self-heating of the first battery pack and the second battery pack. According to the system, the power battery pack can be efficiently heated at low cost, and the stability of the voltage of the battery pack can be maintained.

    本发明公开了一种电池加热系统以及电动交通工具。其中,系统包括:动力电池包,动力电池包包括串联连接的第一电池组和第二电池组,且在第一电池组和第二电池组的串联连接点引出中线;n个升降压逆变器,每个升降压逆变器均包括逆变桥和电感,n个逆变桥并联连接形成第一汇流端和第二汇流端,第一汇流端和第二汇流端与动力电池包的正负极对应连接,电感的一端与对应逆变桥的中点连接,电感的另一端与中线连接,其中,n为大于1的整数;控制器,控制器与逆变桥的控制端连接,用于对n个升降压逆变器进行错相控制,以实现第一电池组和第二电池组的同时自加热。该系统,可以实现低成本、高效地对动力电池包进行加热,且能保持电池包电压的稳定性。


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    Titel :

    Battery heating system and electric vehicle


    Weitere Titelangaben:

    电池加热系统以及电动交通工具


    Beteiligte:
    LING HEPING (Autor:in) / YAN LEI (Autor:in) / GAO WEN (Autor:in) / XIE JINYUE (Autor:in)

    Erscheinungsdatum :

    2023-11-07


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    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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