All aluminum alloy front floor assembly for automobile

Abstract

The invention discloses an all aluminum alloy front floor assembly for an automobile. The all aluminum alloy front floor assembly for the automobile comprises a front floor, an omega-shaped middle passage stamping panel, a multi-cavity inverted U-shaped middle through plate piece with a wing arm-shaped section, a front floor longitudinal beam with an extending wing arm and a square-shaped section,a threshold beam with a wing wall and an irregular four-square-shaped section and an irregular seat cross beam with an extending wing arm and an irregular square-shaped section. According to the allaluminum alloy front floor assembly for the automobile, each member adopts an aluminum alloy material, and the integral mass of the assembly is light; compared with a steel front floor, the the all aluminum alloy front floor assembly for the automobile has the advantages that the integral weight loss reaches up to 25-35%, the manufacturing is simple, the cost is saved, and the assembly can be completely recycled. According to the all aluminum alloy front floor assembly for the automobile, each member adopts a cementing and riveting mixed connecting mode so that the structural strength of the integral structural frame is high; and moreover, the integral NVH performance of the automobile is improved.

Description

technical field [0001] The invention belongs to the technical field of automobiles, in particular to an automobile front floor assembly. Background technique [0002] With the continuous deepening of global urbanization and industrialization, the problems of energy shortage and environmental pollution are becoming more and more serious. In the field of transportation, countries all over the world are committed to promoting the development of low-energy, low-emission vehicles. Since the driving resistance of a vehicle is positively correlated with its weight, whether it is a traditional fuel vehicle or a new energy vehicle, reducing vehicle weight has become an important measure for energy saving and emission reduction. [0003] Aluminum alloy has many advantages such as high specific strength, good plasticity, easy processing and forming, corrosion resistance, recyclable recycling and suitable for various manufacturing methods. The most characteristic is that aluminum alloy...

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Problems solved by technology

Another Chinese patent document with application number 201810792998.1 discloses a floor assembly and a car, which discloses the use of a steel sill beam and an aluminum floor to achieve partial weight reduction, but the rigidity of the aluminum corrugated board is still much lower than People's expectations, and the connection between steel and aluminum is realized by transition joints, which not only complicates the production process but also increases the cost

[0005] At present, in the process of automobile lightweight design, the use of aluminum alloy to realize the lightweight of body structural parts (such as the front floor) is still in a relatively slow development state, and most of the designs are concentrated on the shape design of steel structures; The design of the front floor of the car has not yet been comprehensively designed from the aspects of aluminum alloy material selection, single component structure optimization, weight reduction effect, etc.

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