Automobile body structure

Abstract

The invention provides an automobile body structure applied to the technical field of automotive vehicles. A front lower cross beam (10), a rear lower cross beam (11), a left longitudinal beam (7), a right longitudinal beam (8), two front uprights (3) and two rear uprights (5) of the automobile body structure are all made of aluminum alloy, the front lower cross beam (10) as well as the rear lower cross beam (11) and the left longitudinal beam (7) as well as the right longitudinal beam (8) are connected by means of welding or threaded connecting or cementing, the front uprights (3) are connected with joints of the front lower cross beam (10) and the left longitudinal beam (7) as well as the right longitudinal beam (8) by means of welding or threaded connecting or cementing respectively, and the rear uprights (5) are connected with joints of the rear lower cross beam (11) and the left longitudinal beam (7) as well as the right longitudinal beam (8) by means of welding or threaded connecting or cementing respectively. The automobile body structure has quite high bearing strength and anti-bending rigidity, and a transmission member and a main speed reducer of a driving axle are processed integrally, so that riding space is increased while manufacturing cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of motor vehicles, and more specifically relates to an automobile body structure. Background technique [0002] At present, most of the vehicle bodies are made of steel plate stamping and forming structure, the weight of the whole vehicle is relatively high, and the energy consumption is relatively high, which severely restricts the cruising range of pure electric vehicles. As energy saving and emission reduction become an effective way for sustainable development of countries all over the world, there are higher requirements for the energy consumption of vehicles. At the same time, a lot of molds need to be invested in the steel plate stamping and forming structure body, and the mold cost is very high, which directly increases the vehicle manufacturing cost. [0003] As far as tricycles are concerned, the wheel layout of most tricycles on the market is a regular three-wheel structure with one front and two...

AI Technical Summary

Problems solved by technology

At the same time, a lot of molds need to be invested in the steel plate stamping and forming structure body, and the mold cost is very high, which directly increases the vehicle manufacturing cost.

[0003] As far as tricycles are concerned, the wheel layout of most tricycles on the market is a regular three-wheel structure with one front and two rears, and there are also a small number of ATVs with an inverted three-wheel structure with front two and one rear, and the driving wheels are all rear. It is necessary to increase the transmission system components, and the three-wheel structure of the vehicle body is small, and the storage space of the battery is restricted after the transmission system components are added, so the cruising range of the pure electric vehicle is also affected.

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