Front subframe and front suspension device of electric vehicle

Abstract

The invention discloses a front subframe and a front suspension device of an electric vehicle. The front subframe comprises a girder assembly and cant beam assemblies arranged at the front end of thegirder assembly, wherein motor mounting space A which opens towards vehicle tail and is of an inverted U-shaped structure is formed by the girder assembly, and a motor reserving mounting bracket anda steering gear mounting seat are arranged at the front end of the inverted U-shaped structure; the cant beam assemblies are arranged on two sides of the front end of the girder assembly and are of anupright U-shaped structure opposite to the inverted U-shaped structure, a lateral stabilizer bar assembly and a front tubular beam are arranged in the upright U-shaped structure sequentially, and ananti-collision box is arranged at a front-end opening of the upright U-shaped structure. The front subframe is simple in structure, compact in structural design, light in weight and high in collisionsafety, strength and rigidity, facilitates spatial arrangement and has good practicability and promotion performance.

Description

Technical field [0001] The invention relates to a front subframe and a front suspension device of an electric vehicle, belonging to the technical field of automobile manufacturing. Background technique [0002] The subframe can be regarded as the skeleton of the front and rear axles and is an integral part of the front and rear axles. The subframe is not a complete frame, but a bracket that supports the front and rear axles and suspension, so that the axles and suspension are connected to the "main frame" through it. It is customarily called "subframe". The suspension of a traditional load-bearing body without a subframe is directly connected to the longitudinal beam of the body. Therefore, the components of the suspension guide mechanism of the front and rear axles are parts, not an assembly, which is not conducive to the assembly of the suspension. Moreover, the suspension is directly connected to the vehicle body, and the force of the suspension mechanism directly acts o...

AI Technical Summary

Problems solved by technology

But at the same time, due to the large overall size of the fuel vehicle engine, the full-frame sub-frame is designed to avoid the engine, and considering the connection relationship with the body longitudinal beam, the overall size of the full-frame sub-frame is relatively large, occupying layout space, and weighs more Heavy

However, since the overall size and weight of the motor of new energy vehicles are much smaller than that of the engine, if a full-frame sub-frame layout is adopted, the layout space will be wasted, which is not conducive to space layout and wastes costs.

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