The invention discloses a lower automobile body structure of an electric automobile. The lower automobile body structure comprises an automobile body lower assembly composed of a front cabin assembly, a battery pack assembly and a rear floor assembly. The front cabin assembly comprises a front longitudinal beam wheel cover assembly, and a front baffle lower cross beam is arranged on the front longitudinal beam wheel cover assembly. A battery pack front cross beam, a battery pack side edge beam and a battery pack rear cross beam are arranged on the side wall of the battery pack assembly; the rear floor assembly comprises a rear longitudinal beam wheel cover assembly; a rear floor front cross beam is arranged on the rear longitudinal beam wheel cover assembly; the front baffle lower cross beam is fixed with the battery pack front cross beam through a bolt, and the bolt is fixed with the battery pack rear cross beam through the rear floor front cross beam; the integration is high, the two independent units of the lower vehicle body and the battery pack are combined into a whole, and the number of parts and the weight of the vehicle body are reduced; a front floor assembly is omitted, the vehicle body tool development investment is reduced, and the whole vehicle development cost is reduced.
本发明公开了一种电动汽车下车体结构,包括由前舱总成、电池包总成、后地板总成构成的车身下部总成;所述前舱总成包括前纵梁轮罩总成,且所述前纵梁轮罩总成上设有前挡板下横梁;所述电池包总成的侧壁上设有电池包前横梁、电池包侧边梁以及电池包后横梁;且所述后地板总成包括后纵梁轮罩总成;且所述后纵梁轮罩总成上设有后地板前横梁;且所述前挡板下横梁经螺栓与电池包前横梁相固定,且所述后地板前横梁将螺栓与电池包后横梁相固定;本发明集成化高,将下车体和电池包两个独立的单元合并成为一个整体,减少了零件数量和车身重量;本发明取消前地板总成,减少车身工装开发投入,降低整车开发成本。
Lower vehicle body structure of electric vehicle
一种电动汽车下车体结构
18.03.2025
Patent
Elektronische Ressource
Chinesisch
Platform electric vehicle lower vehicle body structure
Europäisches Patentamt | 2022
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