frame

Abstract

The invention discloses a vehicle frame, comprising: an outer frame, wherein the outer frame is in a regular quadrilateral shape, and is surrounded by two parallel longitudinal beams and two parallelcross beams; A torsion shaft positioned in the center of the outer frame; A curved beam, which is arc-shaped, has four uniformly distributed on the outer periphery of the torsion axis, and fixedly connects the torsion axis and the outer frame, one end of the curved beam is fixedly connected to the outer wall of the torsion axis, and the other end is fixedly connected to the longitudinal beam or the cross beam. After the longitudinal beam receives the impact, the impact force is transmitted along the bending beam, and a moment occurs through the bending structure of the bending beam, which causes the whole frame structure to be deformed, so as to absorb the energy of the impact and ensure the safety of the vehicle.

Description

technical field [0001] The present invention relates to vehicle frames. Background technique [0002] With the development of society, people pay more and more attention to the safety of automobiles, requiring them to withstand strict frontal and side collisions, so that the safety of drivers and passengers can be guaranteed. In the NCAP (New Car Assessment Program, NCAP) evaluation of the new car crash test, the stiffness of the passenger compartment is directly related to the injury of the occupants. The damage will be reduced accordingly. However, the rigidity cannot be made too strong, because certain energy absorption requirements need to be met during a collision, and only sheet metal deformation can produce energy absorption. [0003] In a side impact, the impact energy is mainly absorbed by the doors, B-pillars and side members of the body. When the body size becomes too large after a collision, it can cause occupant injury or even death. [0004] In the existing...

AI Technical Summary

Problems solved by technology

Occupants may be injured or even killed when the body size becomes too large after a collision

[0004] In the existing technology, such as figure 1 As shown, generally the longitudinal beam 1' bears the collision force and transmits the force to each beam 2' for dispersion, and the energy cannot be absorbed effectively through the deformation of the beam 2'

Therefore, it is difficult for existing technologies to absorb large collision energy

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