Front longitudinal beam and automobile

Abstract

The invention belongs to the technical field of automobile front longitudinal beams, and relates to a front longitudinal beam and an automobile. The front longitudinal beam comprises a front longitudinal beam body with the cross section shaped like a Chinese character 'mu', wherein the front longitudinal beam body comprises a rectangular frame, a first reinforcing plate and a second reinforcing plate, the rectangular frame comprises an upper transverse plate, an inner longitudinal plate, a lower transverse plate and an outer longitudinal plate which are connected in sequence, the upper transverse plate is located above the lower transverse plate, the inner longitudinal plate is connected between the inner side of the upper transverse plate and the inner side of the lower transverse plate,the outer longitudinal plate is connected between the outer side of the upper transverse plate and the outer side of the lower transverse plate, the first reinforcing plate and the second reinforcingplate are arranged in an inner space of the rectangular frame, the first reinforcing plate is located above the second reinforcing plate, and the first reinforcing plate and the second reinforcing plate are connected between the inner longitudinal plate and the outer longitudinal plate so as to divide the inner space of the rectangular frame into three sub-cavities which are stacked up and down. On the premise of absorbing the same collision energy, the front longitudinal beam can provide a smaller section size and a more stable crushing form.

Description

technical field [0001] The invention belongs to the technical field of front longitudinal beams of automobiles, in particular to a front longitudinal beam and an automobile. Background technique [0002] Existing automobile body generally adopts larger-sized simple "mouth" type or "day" type cross-section aluminum alloy profile structure, or adopts two open-type punched aluminum plate parts or steel plate parts to connect to form the front longitudinal beam. [0003] Such as figure 1 Shown is a front longitudinal beam assembly structure 1a of a new energy vehicle model, the main longitudinal beam structure 11a is a "mouth" aluminum alloy profile, and the important installation point of Sanden is directly welded to the main longitudinal beam structure 11a by installing a threaded pipe 12a in the through hole 111a. The structure of the front longitudinal beam assembly is relatively simple. On the premise of meeting the collision requirements, the cross-sectional size of the ...

AI Technical Summary

Problems solved by technology

The structure of the front longitudinal beam assembly is relatively complex, with a large number of parts and stamping parts, high mold tooling costs, and high production management costs

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