The invention relates to a rear protection device and a vehicle. The rear protection device is used for being connected with a frame of the vehicle, the rear protection device comprises a protection beam, the protection beam comprises a truss structure and a plate body assembly, the truss structure is made of a carbon fiber composite material, the plate body assembly at least covers the peripheral side of part of the truss structure, and the plate body assembly is made of a metal material. According to the rear protection device, the plate body assembly made of the metal material is arranged, so that the protection beam has certain structural rigidity and strength, and rear-end collision of cars into the bottom of a commercial vehicle during vehicle collision is avoided. By arranging the truss structure made of the carbon fiber composite material, various failure modes of the carbon fiber composite material in the collision failure process are combined with structural deformation of the truss structure, energy generated during vehicle collision is dissipated, and therefore the deformation amount of a rear-end collision car is reduced, a large living space still exists in the rear-end collision car after collision, and the safety of the rear-end collision car is improved. Therefore, the safety of passengers in the rear-end car is improved.
本申请涉及一种后防护装置及车辆。后防护装置用于与车辆的车架相连,后防护装置包括防护梁,防护梁包括桁架结构和板体组件,桁架结构由碳纤维复合材料制成,板体组件至少覆设于部分桁架结构的外周侧,板体组件由金属材料制成。上述后防护装置,通过设置由金属材料制成的板体组件,以使防护梁具有一定结构刚度及强度,避免车辆相撞时追尾轿车进入商用车底部。通过设置由碳纤维复合材料制成的桁架结构,以利用碳纤维复合材料在碰撞失效过程中的多种失效模式与桁架结构的结构变形结合,耗散掉车辆相撞时的能量,从而减小追尾轿车的变形量,使碰撞后追尾轿车内仍有较大的生存空间,从而提高追尾轿车内的乘员的安全性。
Rear protection device and vehicle
后防护装置及车辆
2022-12-02
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |