The invention provides a vehicle body lower portion structure which can rectify airflow on a guide plate and can improve the air mechanical property. The vehicle body lower part structure comprises a guide plate which is arranged on a vehicle body of a vehicle and can move between a storage position covering the lower part of the vehicle body and an expansion position protruding downwards. Wherein the guide plates comprise a front guide plate and a rear guide plate, the front guide plate is rotatably arranged on the vehicle body through the front end of the front guide plate, the rear guide plate is rotatably arranged on the rear end of the front guide plate through the front end of the rear guide plate, the rear end of the rear guide plate is arranged on the vehicle body in the mode that the rear end of the rear guide plate can slide in the front-back direction of the vehicle, and the front guide plate and the rear guide plate are oppositely arranged. And the front flow guide plate and the rear flow guide plate face different directions at the unfolding position.

    本发明提供一种车体下部结构,能够对导流板上的气流进行整流,且能够提升空气力学性能。车体下部结构包括设置在车辆的车体上、且能够在覆盖所述车体的下部的收纳位置以及往下方突出的展开位置之间移动的导流板。其中,所述导流板包括前导流板以及后导流板,所述前导流板以其前端可旋转地设置在所述车体上,所述后导流板以其前端可旋转地设置在所述前导流板的后端上、且以其后端在车辆前后方向上可滑动的方式设置在所述车体上,并且,所述前导流板与所述后导流板在所述展开位置时的朝向不同。


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    Title :

    VEHICLE BODY UNDER STRUCTURE


    Additional title:

    车体下部结构


    Contributors:

    Publication date :

    2023-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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