A multi-level sandwich composite structure and an automobile front panel using the structure

Abstract

The invention discloses a multi-layer sandwich-type composite structure and an automobile dash board using the same. The composite structure comprises an upper roof plate, a first sandwich-type body,and an intermediate separating plate which are successively connected. The first sandwich-type body comprises a plurality of first matrixes. A plurality of the first matrixes is arranged on a horizontal plane in periodic array. The first matrix is formed by four first crossed units. The four first crossed units are arranged along a diagonal line of four side faces of a cube, and the four first crossed units are successively connected and a first cavity is surrounded between the four first crossed units. Two neighboring first matrixes are connected through own first crossed units. The compositestructure is capable of greatly improving structural rigidity and strength, bending resistance, anti-penetration performance and different surface collision resistance. The first sandwich-type body is a single-layer lattice structure, and has higher energy absorption capability. In addition, the first cavity has a noise-reducing function.

Description

technical field [0001] The invention relates to the technical field of automobile equipment, and more specifically, relates to a multi-layer sandwich composite structure and an automobile dash panel applying the structure. Background technique [0002] China's car ownership has been very large and is continuing to increase. Even so, China's per capita car ownership is still far behind that of developed countries. In the future development of China's industry, automobiles, as a pillar industry, still have huge room for growth. With the development of various technologies in the field of automotive equipment and the continuous improvement of people's living standards, people's requirements for the experience of riding a car are increasing, especially for the smoothness, noise level and safety of the car during driving. The stricter requirements also drive automotive engineers to pay more and more attention to the simultaneous realization of high performance and multi-function...

AI Technical Summary

Problems solved by technology

However, most of the automobile dash panels currently on the market are simple in structure and single in function, and cannot effectively block a large amount of noise and heat generated by the engine during the driving process of the automobile, and cannot meet its crashworthiness requirements in the event of a frontal impact accident on the automobile. High demands in terms of safety and penetration resistance

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