Beam structure and cross car beam assembly

Abstract

The invention relates to the field of vehicle body structures, and provides a beam structure and a cross car beam assembly. The beam structure comprises a first beam body and a second beam body whichare sequentially arranged, wherein the tail end of the first beam body and the head end of the second beam body are staggered and connected through a connector. According to the beam structure disclosed by the invention, the tail end of the first beam body and the head end of the second beam body are staggered and connected through the connector, so that the adjustment of the position of the second beam body relative to the first beam body can be more flexible. In addition, bent beam bodies and expansion and contraction beam bodies are avoided or reduced so as to enable the whole beam structure to be designed in a flat and straight manner, and eliminate the reduction in structural stiffness and strength caused by a bent structure. Moreover, the anti-torsion stiffness of the whole beam structure can be improved by avoiding a same axis, and the overall stiffness of the beam structure is improved.

Description

technical field [0001] The invention relates to the field of body structures, in particular to a beam structure and an instrument panel beam assembly. Background technique [0002] The instrument panel crossbeam is the internal skeleton of the instrument panel system, and is the connection bracket between the instrument panel system and the body-in-white assembly. The steering wheel of the vehicle is installed on the crossbeam of the instrument panel through the installation structure of the steering column, and the stiffness of the installation position of the crossbeam of the instrument panel and the steering column will affect the driving experience of the driver. [0003] Traditionally, due to weight limitations, the instrument panel beam is usually designed to be thicker on the left side and thinner on the right side according to the strength requirements of different positions. Fix by gas shielded welding. The left crossbeam of the dashboard crossbeam is arranged on ...

AI Technical Summary

Problems solved by technology

Therefore, the layout of the entire vehicle is usually ensured by bending the dashboard beam, which is difficult to design as a straight structure, but the bending of the dashboard beam will lead to a decrease in the stiffness of the dashboard beam and an increase in weight

[0004] Specifically, see figure 1 In the traditional instrument panel crossbeam assembly shown, the traditional left side crossbeam 11 and the traditional right side crossbeam 12 of the traditional instrument panel crossbeam assembly 1 are connected together by expanding or shrinking the tube, and the left end of the traditional left side crossbeam 11 The traditional left side wall connecting plate 15 is supported on the vehicle body, and the traditional right side beam 12 is supported on the vehicle body through the traditional right side wall connecting plate 16. The middle part of the traditional instrument panel beam assembly 1 is provided with a bending structure to ensure the overall layout of the vehicle. The bending structure can reduce the stiffness of the steering position by about 30%, and the traditional center channel crossbeam 14 is also designed as a curved structure, which seriously affects the overall structural rigidity of the traditional instrument panel crossbeam assembly 1, and further affects the rigidity of the traditional column installation structure 13. Strength, and in terms of technology, the instrument panel beam is formed by expanding or shrinking tubes, and the precision guarantee effect is poor

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