The invention provides a bottom protection plate, a power battery assembly and a vehicle. The bottom protection plate comprises a main body made of multiple layers of fiber fabrics; the first reinforcing part is arranged on the peripheral side of the main body; the second reinforcing part is arranged on the first side face of the main body, and the second reinforcing part protrudes from the first side face to the first direction. According to the bottom protection plate, the main body is made of the multi-layer fiber fabric, and the first reinforcing part and the second reinforcing part are arranged on the main body in a matched mode, so that the problems existing in a bottom protection plate made of an original steel plate in a stamping mode are solved, and the bottom protection plate achieves the light weight effect on the basis that the structural strength is guaranteed; compared with an original bottom protection plate made of a steel plate, the weight of the bottom protection plate is reduced by more than 40%, meanwhile, the heat preservation performance of a power battery can be improved due to the characteristics of the multi-layer fiber fabric, the driving range of an electric vehicle at the low temperature is increased, and the bottom protection plate further has low thermal conductivity, full insulation performance, complete chemical corrosion resistance and grease resistance and is convenient to form.

    本发明提供一种底护板、动力电池总成及车辆,所述底护板包括由多层纤维织物制成的主体;第一加强部,设置于所述主体的外周侧;第二加强部,设置于所述主体的第一侧面,所述第二加强部由所述第一侧面向第一方向凸出。该底护板通过由多层纤维织物制成的主体并配合在主体上设置的第一加强部和第二加强部,解决了原有钢板冲压制成的底护板存在的问题,使得该底护板在保证结构强度的基础上达到了轻量化的效果,相比原有钢板制成的底护板降重超过40%,同时由于多层纤维织物的特性也可以提升动力电池保温性能,从而提升电动车辆低温下续驶里程,还具备低导热性、全绝缘性能以及完全耐化学腐蚀、耐油脂性能,还便于成型。


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    Title :

    Bottom protection plate, power battery assembly and vehicle


    Additional title:

    一种底护板、动力电池总成及车辆


    Contributors:
    CAO YUNFEI (author) / YAN CHAO (author) / FU YUNXI (author) / ZHANG ZHANJIANG (author) / ZHANG XINBIN (author)

    Publication date :

    2024-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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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