The invention relates to a lower vehicle body framework structure of a large commercial and passenger dual-purpose pure electric vehicle. The structure comprises a front cabin framework and a middle-rear floor framework, the front cabin framework comprises a front anti-collision beam assembly, a front end stand column assembly, a front longitudinal beam assembly and a front floor assembly, the front anti-collision beam assembly comprises a front anti-collision beam and an energy absorption box, the front anti-collision beam is connected with the front longitudinal beam assembly through the energy absorption box, and the bottom of the front end stand column assembly is connected with the energy absorption box. The middle-rear floor framework comprises a flat floor, a rear floor, a seat pit, a cross beam assembly, a longitudinal beam assembly and a battery pack, the battery pack is installed below the cross beam assembly, the flat floor is installed above the cross beam assembly, the flat floor, the rear floor and the seat pit are sequentially connected, the cross beam assembly, the battery pack, the flat floor, the rear floor and the seat pit are all supported by the longitudinal beam assembly, and the flat floor is connected with the front floor assembly. Compared with the prior art, the structure has the advantages that the middle floor is light in weight and universal; the bearing space is large and the performance is high; the rear flat floor and the seat can be turned into the pit; the structure is modular; and the safety is high.

    本发明涉及一种大型商乘两用纯电车型下车体架构结构,包括前机舱架构和中后地板架构,前机舱架构包括前防撞梁总成、前端立柱总成、前纵梁总成和前地板总成,前防撞梁总成包括前防撞梁和吸能盒,前防撞梁通过吸能盒连接前纵梁总成,前端立柱总成的底部连接吸能盒;中后地板架构包括平地板、后地板、座椅坑、横梁组件、纵梁组件和电池包,电池包安装在横梁组件的下方,平地板安装在横梁组件的上方,平地板、后地板和座椅坑依次连接,横梁组件、电池包、平地板、后地板和座椅坑均受纵梁组件支撑,平地板连接前地板总成。与现有技术相比,本发明具有中地板轻量化、通用化;承载空间大、性能高;后部平地板、座椅可翻转入坑;模块化;安全性高等优点。


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    Title :

    Lower vehicle body framework structure of large commercial and passenger dual-purpose pure electric vehicle


    Additional title:

    一种大型商乘两用纯电车型下车体架构结构


    Contributors:
    NAN SHENGLIANG (author) / YU TONG (author) / ZHANG YUYI (author) / GAO XING (author) / ZHENG CHUQIANG (author)

    Publication date :

    2021-12-03


    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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