The invention relates to a direct current charging and discharging device and system and a vehicle, the direct current charging and discharging device is applied to the vehicle, the direct current charging and discharging device comprises a boost DC module, a power distribution module, a battery pack and a charging and discharging port, the boost DC module comprises a boost DC module, and the boost DC module comprises at least one bridge arm and an induction coil; the battery pack, the boost DC module and the charging and discharging port are sequentially connected in parallel through a switching circuit, one end of the induction coil is connected to the midpoint of the bridge arm, and the other end of the induction coil is connected to the positive electrode of the battery pack and the positive electrode of the charging and discharging port through the switching circuit; the charging and discharging port is used for being connected with an external power utilization device or an external power supply device; and the power distribution module is used for switching on the switching circuit according to the voltage of the battery pack and the voltage of the charging and discharging port so as to form different connecting loops, so that the battery pack performs direct current discharging on the external power utilization device or the external power supply device performs direct current charging on the battery pack.

    本公开涉及一种直流充放电设备、系统及车辆,应用于车辆,所述直流充放电设备包括升压DC模块、配电模块、电池包以及充放电口,所述升压DC模块包括升压DC模块,所述升压DC模块包括至少一个桥臂和一个感应线圈;所述电池包、所述升压DC模块以及所述充放电口通过开关线路依次并联,且所述感应线圈的一端连接于所述桥臂的中点,另一端通过所述开关线路连接于所述电池包的正极和所述充放电口的正极;所述充放电口用于连接外部用电装置或者外部供电装置;所述配电模块用于根据所述电池包的电压和所述充放电口的电压接通所述开关线路以形成不同的连接回路,以便所述电池包对所述外部用电装置直流放电或使得所述外部供电装置对所述电池包直流充电。


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    Title :

    Direct current charging and discharging equipment, system and vehicle


    Additional title:

    直流充放电设备、系统及车辆


    Contributors:
    CHEN MINGWEN (author) / XUE PENGHUI (author) / SHI LEI (author) / LI WEICHENG (author) / WEN HUIYING (author)

    Publication date :

    2024-02-06


    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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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