Lightweight automobile energy absorption box with lattice structure

A technology of lattice structure and energy-absorbing box, which is applied to bumpers and other directions, can solve problems such as high energy, weakened vibration, and high rigidity, and achieve the effects of improving impact resistance, cushioning energy absorption, protecting safety, and reducing weight

CN114228651APending Publication Date: 2022-03-25重庆交通大学绿色航空技术研究院 +1
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-03-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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...

Examples

Embodiment Construction

[0017] The lightweight automotive energy-absorbing box containing the lattice structure of the present embodiment comprises a casing and a Diamond implicit surface lattice structure composed of repeated unit cells filled in the casing, and the unit cells are Diamond implicit The surface units are arranged in an array of Cartesian coordinates in space; the lattice structure metamaterials used have the characteristics of light weight, low thermal conductivity, high specific stiffness, high specific strength and large tensile and compressive strain, which can reduce the absorption Reduce the weight of the energy box, improve the impact resistance and cushioning energy absorption capacity of the energy-absorbing box, and effectively protect the safety of passengers and the vehicle body.

[0018] In this embodiment, the Diamond implicit surface lattice structure is composed of N×N×M Diamond implicit surface units connected to each other to form a spatial network structure, where N≥2...