Bionic energy absorption box

Abstract

The invention discloses a bionic energy absorption box. The bionic energy absorption box comprises a first connecting plate, a box body and a second connecting plate; the first connecting plate and the second connecting plate are respectively fixed to the two ends of the box body; the bionic energy absorption box is characterized in that the box body consists of grid walls of a polygonal grid unit and thin-walled columns which are arranged along the intersections of the grid walls; the thin-walled columns and the grid walls are waveforms with equal cross sections; a waveform deformation leading line is formed at the intersection of each grid wall and the corresponding thin-walled column. The energy absorption box disclosed by the invention is high in energy absorption capacity and stable in energy consumption; the speed of an automobile is effectively reduced after the automobile is collided, and the maximum safe speed of safety collision of the automobile is further improved; the bionic energy absorption box is particularly suitable for the field of design and manufacturing of automobile parts and similar structures with anti-collision requirements; the life safety of a main body and people can be effectively guaranteed.

Description

technical field [0001] The invention relates to an energy-absorbing box for absorbing impact during collision, in particular to an automobile energy-absorbing box. Background technique [0002] When a car collides, especially at a low speed, in order to avoid deformation of the front longitudinal beam, an energy absorbing box is usually installed between the automobile cross member (bumper) and the front longitudinal beam (automobile main frame). When a collision occurs, the first contact is the front bumper of the car, followed by the crash box, and finally the front side member. Automobile bumpers and energy-absorbing boxes not only protect the safety of occupants and external pedestrians in the car and minimize the degree of injury, but also reduce the degree of damage to the vehicle and other components, so that after a vehicle collision occurs, Its maintenance cost will be reduced. However, the test results of the IIHS in the United States show that the bumpers of mos...

AI Technical Summary

Problems solved by technology

When the car reaches a certain speed during the collision, the energy-absorbing box cannot completely absorb the kinetic energy of the car, and the remaining energy is borne by the longitudinal beam. At this time, the main structure of the car will be damaged, and even threaten the safety of the people in the car.

[0003] However, the inventor found that the following problems still exist in the current technology: the existing traditional energy-absorbing boxes are only quadrangular rectangles or single cylinders, and the deformation guide lines are also broken lines, so that the plastic deformation of the material is not fully utilized for energy consumption.

When a car collides with a medium-high speed, it will cause a large secondary collision damage. At this time, the role of the energy-absorbing box is very limited.

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