The invention discloses a power battery charging system which comprises a first power battery, a second power battery, a main positive relay, a main negative relay, a first fast charging relay, a second fast charging relay, a third fast charging relay, a fourth fast charging relay, a pre-charging relay, a pre-charging resistor, a positive interface and a negative interface. And high-voltage fast charging, low-voltage fast charging, pre-charging and slow charging of the power battery can be realized. According to the invention, through electrical architecture adjustment, charging of the battery by being compatible with different fast charging voltage platforms can be realized through relatively small modification, a DC/DC voltage booster does not need to be arranged, the fast charging efficiency is improved, and the charging cost is reduced.

    本发明公开了一种动力电池充电系统,包括第一动力电池、第二动力电池、主正继电器、主负继电器、第一快充继电器、第二快充继电、第三快充继电器、第四快充继电器、预充继电器、预充电阻、正接口以及负接口,能实现对动力电池进行高压快充、低压快充、预充以及慢充。本发明通过电气架构调整,以较小的改动实现可兼容不同快充电压平台对电池的充电,无须布置DC/DC升压器,提升了快充充电效率,降低了充电成本。


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    Title :

    Power battery charging system


    Additional title:

    一种动力电池充电系统


    Contributors:
    YAO WEIHAO (author) / ZHU YUN (author)

    Publication date :

    2023-05-05


    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



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