Electric vehicle body substructure

Abstract

The invention discloses a vehicle body lower part structure of an electric automobile. The vehicle body lower part structure comprises a front floor framework structure, a rear floor framework structure and a front longitudinal beam; the front floor framework structure comprises a front baffle lower transverse beam, a pair of door sill beams and a rear floor front transverse beam; the front baffle lower transverse beam and the rear floor front transverse beam are arranged between the pair of door sill beams to form a front framework; the rear floor framework structure comprises a rear floor front transverse beam, a pair of rear floor longitudinal beams and a rear floor rear transverse beam; the pair of rear floor longitudinal beams are arranged between the rear floor front transverse beam and the rear floor rear transverse beam to form a rear framework; the rear end of the front longitudinal beam is connected with the front baffle lower transverse beam; the front baffle lower transverse beam, the door sill beams, the rear floor front transverse beam, the rear floor longitudinal beams, the rear floor rear transverse beam and the front longitudinal beam are all of hollow aluminum sectional material structures. All the beam structures adopt the hollow aluminum sectional material structures, so that the vehicle body lower part structure is light in weight and great in structural strength; the collision effect and the weight can be considered at the same time.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an electric vehicle body substructure. Background technique [0002] As a new energy vehicle, electric vehicles have the advantages of energy saving and environmental protection. Electric vehicles are becoming more and more research hotspots in the automotive field. At present, the common problem in the field of electric vehicles is that the battery life of electric vehicles is limited, which limits the popularization and application of electric vehicles. [0003] The existing lower structure of the car body is mostly a steel structure, which is heavy, which is not conducive to the lightweight of electric vehicles, and is not conducive to effectively extending the mileage of electric vehicles. Moreover, the manufacturing, assembly and maintenance costs of metal parts are high, which is not conducive to reducing costs and cannot meet the requirements of energy conservati...

AI Technical Summary

Problems solved by technology

At present, the common problem in the field of electric vehicles is that the battery life of electric vehicles is limited, which limits the promotion and application of electric vehicles

[0003] The existing lower structure of the car body is mostly a steel structure, which is heavy, which is not conducive to the lightweight of electric vehicles, and is not conducive to effectively extending the mileage of electric vehicles. Moreover, the manufacturing, assembly and maintenance costs of metal parts are high, which is not conducive to reducing costs and cannot meet the requirements of energy conservation and environmental protection. Requirements; In order to meet the collision requirements, the weight of the structural parts is heavy, and it is difficult to balance both the collision effect and the weight

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