A kind of automobile bumper buffer structure

Abstract

The invention discloses a vehicle bumper with a damping structure. The vehicle bumper comprises a bumper damping cross beam, a bumper outer baffle and a damping structure which is arranged between the bumper damping cross beam and the bumper outer baffle. The vehicle bumper is characterized in that the damping structure is a bionic column-grid structure layer; the column-grid structure layer is formed by grid walls of polygonal grid cells and thin-walled columns in the junctions of the grid walls; sections of the thin-walled columns and grids along the height direction are waveforms with uniform sections; and deformed guide lines of the waveforms are formed in the junctions of the grid walls and the thin-walled columns. The bumper damping structure has large energy absorption and stable energy consumption, can be used for effectively reducing the vehicle speed after collision to further improve the highest safety speed during safe collision of a vehicle, is especially applicable to the field of vehicle part designing and manufacturing or structures with similar collision-prevention requirements, and can be used for effectively guaranteeing the safety of main body structures and human lives.

Description

technical field [0001] The invention relates to an automobile accessory, in particular to an automobile bumper buffer structure. Background technique [0002] The car bumper is the first protective device to absorb and ease the external impact and protect the front and rear of the car body. It cooperates with the second protective device - the energy-absorbing box - to jointly ensure the safety of the car body and the people inside the car. With the development of the automobile industry and highway traffic, the speed of automobiles is getting faster and faster. Automobile bumper has also moved towards the road of innovation as a kind of important safety device, and existing automobile bumper mainly comprises: bumper outer baffle and bumper shock-absorbing crossbeam, and it mainly carries out energy consumption by bending deformation. When the existing automobile bumper has a slight collision, the safety of the vehicle body and the occupants in the vehicle can be guaranteed...

AI Technical Summary

Problems solved by technology

However, when a relatively large collision occurs, the disadvantages of using the bumper to bend and deform energy consumption will appear, which is manifested in its weak impact resistance and poor cushioning effect, which will cause greater secondary collision damage and is unsafe to use.

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