Rotationally molded automobile chassis with steel-structured framework

Abstract

The invention belongs to the technical field of new energy automobiles, and in particular relates to a rotationally molded automobile chassis with a steel-structured framework. The rotationally molded automobile chassis comprises a chassis body, wherein the chassis body comprises a surface layer, the steel-structured framework and a central foaming layer; the central foaming layer is located in the inner cavity of the surface layer; the steel-structured framework is arranged inside the surface layer, and comprises an overall outline framework, as well as transverse rods and a vertical rod, all connected with the overall outline framework; reinforcing rib structures of protruding type and groove type are arranged on the upper surface and the lower surface of the chassis body respectively; inserts used for mounting parts are arranged on the chassis body. According to the invention, one-step rotational molding forming of the automobile chassis is achieved through the rotational molding technology, so that the manufacturing process is simplified, the manufacturing efficiency is increased, and the cost is lowered; the steel-structured framework has better buffering and shock absorption effects while the rigidity intensity of a conventional steel-structured chassis is kept; good acoustic insulation and heat insulation effects are achieved.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicles, and in particular relates to a rotationally molded vehicle chassis with a steel structure skeleton. Background technique [0002] At present, electric vehicles are developing rapidly. The body of an ordinary electric vehicle is generally made of glass fiber reinforced plastic or metal sheet metal, and the chassis is all made of metal structure. Because all are metal structures, the weight of the car itself is relatively heavy, the endurance of the car will be greatly affected, the impact resistance of the car is poor, and the safety factor is low. Some domestic manufacturers have done a lot of research on the lightweight of automobile bodies. For example, the published patent (CN102601905A) mentioned a one-time molded three-layer plastic car shell. The car shell is the plastic shell, which is light in weight. , Good impact resistance, etc. However, there are very few plasticizing te...

AI Technical Summary

Problems solved by technology

However, there are few plasticizing technology innovations for automobile chassis in China. Simply reducing the weight of the chassis will cause the rigidity of the chassis to fail to meet the requirements and cause danger.

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