The invention belongs to the technical field of electric vehicle bodies, and particularly relates to a vehicle body framework, a lower vehicle body structure design method and a pure electric vehicle. The battery pack is mounted in the lower vehicle body frame; and the position adjusting unit is located above the battery pack on the inner side of the lower vehicle body frame, and the height of the position adjusting unit changes along with the change of the thickness of the battery pack, so that the relative position between the position adjusting unit and the top surface of the battery pack is kept unchanged. The lower boundary of the battery pack serves as the design basis, the periphery of the vehicle body frame is designed to be a lap joint/sealing face, and the Z-direction lap joint relation between the vehicle body lower floor and the vehicle body frame is guaranteed. According to the scheme, the passenger space can be increased for a thin battery pack; for a thicker battery pack, the ground clearance can be fully utilized; and for the extended CTB scheme, the overlap edge of the vehicle body frame is changed into a sealing surface with the battery pack, and the generalization of the lower vehicle body is ensured to a greater extent.

    本发明属于电动车车身技术领域,具体涉及一种车身架构、下车身结构设计方法及纯电动汽车,包括:平台通用模块,平台通用模块包括下车身框架;电池包,安装于下车身框架内;位置调整单元,位于下车身框架内侧的所述电池包的上方,位置调整单元的高度随所述电池包厚度的变化而变化,以使所述位置调整单元与电池包顶面之间的相对位置保持不变。本发明以电池包下边界为设计基础,车身框架周边设计为搭接/密封面,使车身下地板与车身框架保证Z向的搭接关系。此方案对于较薄的电池包,会增大乘员空间;对于较厚的电池包,则会充分利用离地间隙;对于拓展CTB方案,则车身框架搭接边变为与电池包的密封面,同时也较大程度地保证了下车身的通用化。


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    Title :

    Vehicle body framework, lower vehicle body structure design method and pure electric vehicle


    Additional title:

    一种车身架构、下车身结构设计方法及纯电动汽车


    Contributors:
    DONG TONGJIE (author) / KANG FEI (author) / WANG DONG (author) / GE YANG (author)

    Publication date :

    2022-11-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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