A front longitudinal beam outer panel structure

Abstract

The invention relates to a front longitudinal beam outer plate structure of a motor vehicle. The front longitudinal beam outer plate structure comprises a front longitudinal beam body, wherein the front longitudinal beam body comprises a front longitudinal beam outer plate and a front longitudinal beam inner plate, the back section of the front longitudinal beam outer plate is mutually fixedly connected with a doorsill plate and / or a front door hinge pillar of the motor vehicle, a bending region is arranged at the middle section of the front longitudinal beam outer plate, and the front longitudinal beam outer plate on the bending region forms an angle alpha of less than 90 degrees with the trend of the front longitudinal beam body. According to the front longitudinal beam outer plate structure disclosed by the invention, when the collision of the front end occurs, one part of collision energy transferred by a front longitudinal beam can be effectively distributed to the front door hinge pillar and the doorsill plate before passing through the bending region, so that the front longitudinal beam outer plate structure disclosed by the invention can effectively optimize a transfer path of the energy, improve the transfer efficiency of the energy and further improve the collision performance of the whole vehicle.

Description

technical field [0001] The invention relates to a structure for absorbing and transmitting collision energy, in particular to a front longitudinal beam outer plate structure suitable for various vehicle body structures. Background technique [0002] The front side member structures in the prior art are generally arranged on both sides of the lower part of the engine compartment along the longitudinal direction of the vehicle. In the event of a frontal collision of the vehicle, the front side member is the most important carrier for absorbing and transmitting the collision energy. [0003] Such as figure 1 As shown, the front longitudinal beam is generally a closed cavity structure, which is divided into a front longitudinal beam outer panel 10 and a front longitudinal beam inner panel 20; [0004] Such as figure 2 and image 3 As shown, the front longitudinal beam outer panel 10 and the front longitudinal beam inner panel 20 extend rearward in an approximately parallel ...

AI Technical Summary

Problems solved by technology

[0008] However, the connection angle between the box-shaped part 50 and the rear section 40 of the front side beam and the sill plate 60 is close to vertical, and the energy transmission path from the rear section 40 of the front side beam to the sill plate 60 is not direct, so the transmission efficiency is relatively low.

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