一种可实现多轴线集中吸能的汽车B柱,包括：B柱外板、微元胞填充层、B柱内板；微元胞填充层是由多个单元胞体在X向和Y向上依次排列组合而成的立体结构；单元胞体是由两个对称的子单元胞连接构成；子单元胞包括：传力部、第一竖向吸能部、第二竖向吸能部、第一横向吸能部、第二横向吸能部；所述传力部一端通过第一水平传力板与第一竖向吸能部连接,另一端与第一横向吸能部连接；所述第一竖向吸能部与第二竖向吸能部连接,第一竖向吸能部与第二竖向吸能部之间的夹角为135-165°；所述第一横向吸能部与第二横向吸能部通过第二水平传力板连接；第二横向吸能部的另一端与第二竖向吸能部连接。该汽车B柱碰撞时初始峰值低,吸能过程稳定,吸能效果好。

A vehicle B-pillar capable of multi-axis concentrated energy absorption includes: B-pillar outer plate, cell packing layer, and B-pillar inner plate; the cell packing layer is composed of multiple unit cells in X direction and Y direction. A three-dimensional structure formed by permutation and combination; the unit cell body is formed by connecting two symmetrical subunit cells; the subunit cells include: a force transmission part, a first vertical energy absorbing part, a second vertical energy absorbing part, and a first horizontal The energy absorbing part and the second transverse energy absorbing part; one end of the force transmitting part is connected to the first vertical energy absorbing part through the first horizontal force transmission plate, and the other end is connected to the first horizontal energy absorbing part; the first vertical The energy absorbing part is connected to the second vertical energy absorbing part, and the included angle between the first vertical energy absorbing part and the second vertical energy absorbing part is 135-165°; The two horizontal energy absorbing parts are connected by a second horizontal force transfer plate; the other end of the second horizontal energy absorbing part is connected with the second vertical energy absorbing part. The initial peak value of the vehicle's B-pillar collision is low, the energy absorption process is stable, and the energy absorption effect is good.