An integrated c-ring structure

Abstract

An integrated C-ring structure, including skeleton and aluminum foam, the skeleton is integrally formed by injection molding of nylon 66 and 50% glass fiber material, the interior of the skeleton is hollow, the foam aluminum is set at the corner of the skeleton and is detachable with the skeleton The fixedly connected foam aluminum plates and the foam aluminum blocks filled inside the frame, the frame is filled with foam aluminum blocks and the torsional stiffness of the C-ring structure can be increased by replacing the foam aluminum plates with different foaming rates and the degree of freedom of torsional stiffness adjustment can be improved. The skeleton also includes side wall vertical plates arranged symmetrically on the left and right. A cavity is formed inside the side wall vertical plate, and foam aluminum blocks and reinforcing ribs are arranged inside the cavity to further increase the torsional rigidity of the C-ring structure. The integrated C-ring structure of the present invention replaces the welding and riveting structure of many parts of the original C-ring structure, meets the requirement of light weight and can increase the torsional rigidity of the C-ring structure.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to an integrated C-ring structure. Background technique [0002] The car C-ring structure is a roughly ring-shaped structure formed by connecting the side pillars on both sides of the body, the connecting beams of the left and right side luggage compartments, and the beams on the rear floor. Because it plays a key role in the torsional stiffness of the vehicle, it will It directly affects the handling stability and road noise level of the vehicle when driving, so it is also called "acoustic ring". [0003] The traditional C-ring structure involves many parts and connection points. The current design mostly assembles the parts together by welding or riveting between steel plates, which leads to a more complex overall structure, cumbersome connection process, and requires many Auxiliary stamping dies and welding fixtures cause a waste of human resources and energy; at the same time, the tra...

AI Technical Summary

Problems solved by technology

[0003] The traditional C-ring structure involves many parts and connection points. The current design mostly assembles the parts together by welding or riveting between steel plates, which leads to a more complex overall structure, cumbersome connection process, and requires many Auxiliary stamping dies and welding fixtures cause a waste of human resources and energy; at the same time, the traditional C-ring structure often has weak structures, resulting in insufficient torsional rigidity of the car, which in turn causes road noise levels, durability, safety and car handling The decline in stability performance directly affects people's recognition of car quality

[0004] The traditional method to solve the above technical problems is to increase the torsional stiffness of the C-ring structure by adding reinforcement plates, and in order to ensure the key role of the introduction of reinforcement plates, the number, cross-section and thickness of reinforcement plates are often increased, directly sacrificing the Cost, development cycle, light weight, vehicle space layout and other performance, while not avoiding the current complex design problems of the C-ring structure, the overall improvement effect is not obvious

In addition, the traditional design will also reduce the impact of road noise by adding sound insulation or sound-absorbing materials in the noise transmission path. This will undoubtedly increase the number of stamping dies and assembly tools, directly resulting in an increase in cost, energy, weight, etc. High cost performance, low power consumption, and lightweight design development increase resistance

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