Automobile threshold beam, automobile body and automobile

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Automobile threshold beam, automobile body and automobile

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LI QIBIN / JIANG DAXIU / WU JUN / OU TIANQIAO

The invention discloses an automobile threshold beam, an automobile body and an automobile. The automobile threshold beam comprises a threshold beam body and a reinforcing piece. One end of the threshold beam body is connected with the lower portion of an A column of a vehicle, and the interior of the threshold beam body is of a hollow structure. The reinforcing piece is arranged in the hollow structure at the corresponding position below the threshold beam body and the column A; the reinforcing piece comprises framework and a structural adhesive, the structural adhesive is arranged between the framework and the inner wall of the threshold beam body, and the structural adhesive can expand to support the threshold beam body. Compared with the prior art, the deformation of the threshold beamcan be effectively reduced, the collision performance of the whole vehicle is guaranteed, and the safety performance of the vehicle is improved; besides, the weight of the threshold beam can be greatly reduced by adopting the plastic framework and the structural adhesive, the lightweight design of a vehicle is facilitated, and the manufacturing cost can be saved.

本发明公开了一种汽车门槛梁、车身及汽车，该汽车门槛梁包括门槛梁本体和加强件；所述门槛梁本体的一端与车辆的A柱下方相连，所述门槛梁本体的内部为中空结构；所述加强件设于所述门槛梁本体与所述A柱下方对应位置处的中空结构内；所述加强件包括骨架和结构胶，所述结构胶设于所述骨架与所述门槛梁本体的内壁之间，所述结构胶能够膨胀以支撑所述门槛梁本体。本发明相对于现有技术，可以有效减少门槛梁的变形量，保证整车碰撞性能，提高了车辆的安全性能；另外，采用塑料骨架和结构胶能够大幅降低门槛梁的重量，有利于车辆的轻量化设计，并且可以节约制造成本。