Lightweight automobile energy absorption box with lattice structure

Abstract

The light-weight automobile energy absorption box comprises a shell and a Diamond implicit curved surface lattice structure which is filled in the shell and composed of repeated unit cell units, and the unit cell units are Diamond implicit curved surface units and are arranged in a space Cartesian rectangular coordinate system array; by utilizing the characteristics of light weight and good energy absorption of the lattice structure, the weight of the energy absorption box is reduced, the impact resistance and the buffering energy absorption capacity of the energy absorption box are improved, and the safety of passengers and a vehicle body is effectively protected.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a lightweight automobile energy-absorbing box containing a lattice structure. Background technique [0002] The lightweight design of automobiles can reduce vehicle fuel consumption, increase cruising range, and effectively alleviate energy and environmental problems. But at the same time, as a vehicle for carrying people, automobiles will cause great harm to people in the event of a collision. Therefore, while reducing the weight of the vehicle body, it is also crucial to improve vehicle safety. Effectively reducing collision damage and improving vehicle protection performance put forward higher requirements for lightweight impact-resistant and energy-absorbing structures. The energy-absorbing box of the car is the main energy-absorbing component in the anti-collision beam system. When a collision occurs, the energy-absorbing box absorbs the energy during the collision and plays a r...

AI Technical Summary

Problems solved by technology

Due to the high rigidity of the traditional thin-walled stamping type automotive energy-absorbing box, the energy-absorbing effect is poor when it collapses, and it cannot play a good role in reducing the vibration generated when the collision occurs.

Patent Publication No. CN111688618A proposes a light-weight energy-absorbing box for automobiles containing imitation honeycomb structure and imitation bone structure, which cannot resist large force during high-speed impact and cannot absorb high energy

Patent Publication No. CN111775875A proposes a car energy-absorbing box and a chiral structure inner core with negative Poisson’s ratio characteristics, but the inner core and the box body are not integrally formed. Although this design is convenient for installation and cooperation with the box body, the It also limits the energy absorption efficiency of the energy absorbing box

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