Body in white bend resistance structure and arrangement mode thereof

Abstract

The invention provides a body in white bend resistance structure and an arrangement mode thereof. The lower end of a lower vertical plate of a column A is in overlap connection with a sill strip. The upper end of the lower vertical plate of the column A is in overlap connection with an outer plate of the column A. The outer plate of the column A is in overlap connection with an upper beam of a column B. The upper end of an outer plate of the column B is in overlap connection with the upper beam of the column B. The lower end of the outer plate of the column B is in overlap connection with the sill strip. Two to three layers of spot welding connection is formed at each overlap joint to form a closed structure. The bend resistance section of the sill strip, the bend resistance section of the vertical plate of the column A, the bend resistance section of the outer plate of the column A and the bend resistance section of the upper beam of the column B are each in a closed annular shape. Due to the fact that the bend resistance sections form the closed annular shapes and are composed of three or four sheet metal parts, the bend resistance is improved; due to extending sections at the upper and lower ends of the outer plate of the column B, the overlap connection efficiency of the upper beam and the sill strip of the column B and the outer plate of the column B is enhanced, and the bend resistance performance is improved; the transverse and longitudinal staggered closed structure has the effect of enhancing inertia torque, and the bend resistance performance is improved.

Description

technical field [0001] The invention relates to the technical field of automobile body structures, in particular to a body-in-white anti-bending structure and its arrangement. Background technique [0002] The key component on the force transmission path of the automobile body is the main structure of the vehicle body, which is responsible for the force bearing and energy absorption during the vehicle collision process, and is the main determinant of whether the collision vehicle can obtain a high-star safety evaluation. The rationality, utility, and process realization of the design are the main factors affecting the collision result. The structural design on the force transmission path is not accomplished overnight, and requires repeated attempts, improvements, optimizations, and verifications to achieve the best design effect. [0003] In the traditional car body-in-white structure, the angle between the outer panel of the B-pillar and the height direction of the vehicle...

AI Technical Summary

Problems solved by technology

The angle of the outer panel of the B-pillar of the original structure and the overlapping effect of the outer panel and the connecting parts did not form a good bending performance

At the same time, the layout of the transverse and longitudinal beams of the body-in-white does not form a closed structure, and the bending resistance is poor

The traditional body-in-white water tank bracket assembly is heavy in weight, and the upper and lower beams are thicker. Although it has good load-bearing performance, the mass of the excitation end of the body-in-white is heavy, which will arouse the overall bending mode, and the bending resistance is also weak.

The connection structure between the longitudinal beam of the water tank and the front bumper and the front longitudinal beam is weak, and its installation structure is simple, and its bearing capacity and bending resistance are poor

Images