Flexible energy absorption automobile anti-collision beam

Abstract

The invention provides a flexible energy absorption automobile anti-collision beam and belongs to the technical field of automobiles. The flexible energy absorption automobile anti-collision beam solves the problem that an existing anti-collision beam is poor in collision energy absorption effect. The flexible energy absorption automobile anti-collision beam comprises a front anti-collision board,a rear anti-collision board and multiple energy absorption pieces arranged between the front anti-collision board and the rear anti-collision board. The multiple energy absorption pieces are arrangedin the length direction of the anti-collision beam and are block bodies made of an elastic material. The front ends and the rear ends of the energy absorption pieces are provided with strip-shaped abutting faces. The multiple energy absorption pieces comprise the multiple first energy absorption pieces with the abutting faces transversely arranged and multiple second energy absorption pieces withthe abutting faces vertically arranged. The first energy absorption pieces and the second energy absorption pieces are arranged at intervals. The energy absorption pieces in the anti-collision beam can achieve transverse and longitudinal supporting and energy absorption effects on the anti-collision beam, the first energy absorption pieces and the second energy absorption pieces have the deformation recovery trend, so that large counter-force and the large counter-moment are generated, the stress direction is further changed, and two automobiles have a separating trend.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to an automobile anti-collision beam, in particular to a flexible energy-absorbing automobile anti-collision beam. Background technique [0002] The anti-collision beam is a rigid structure installed at the front end of the front longitudinal beam and the rear end of the rear longitudinal beam of the car. When a front or rear collision occurs, it can support, protect and disperse the impact force on the body structure and parts. When a collision occurs, the collision force will act on the energy-absorbing box through the anti-collision beam, and then propagate longitudinally to the vehicle body in the form of stress waves. The function of the anti-collision beam is to disperse the collision force to the two longitudinal beams of the vehicle body, improve the stress state of the vehicle body, and make the structural parts as uniform as possible. In the event of a low-speed collisi...

AI Technical Summary

Problems solved by technology

[0004] When a vehicle collides head-on, the energy-absorbing plate is bent at the bend. Although the high-efficiency energy absorber can absorb part of the impact energy to weaken the impact energy, it does not change the transmission direction of the impact force. and the deceleration effect is limited; in addition, when the vehicle has a side collision, the high-efficiency energy absorber in the anti-collision beam cannot effectively deform, resulting in less impact energy absorbed, which is not conducive to the protection of the vehicle

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