本发明属于汽车用零部件领域,具体涉及一种具有特殊微元胞填充层的汽车门槛,该汽车门槛包括：设置在内、外两侧的汽车门槛板,设置在内、外两侧汽车门槛板之间的微元胞填充层,微元胞填充层是由多个单元胞在X向、Y向、Z向上依次排列组合而成的立体结构；单元胞由四个吸能件组合构成,相邻的两个吸能件相互垂直设置,四个吸能件的顶端、底部均通过一个正方体的连接块连接,使其形成一个整体；吸能件包括第一横向吸能部、与第一横向吸能部对称设置的第二横向吸能部、第一竖向吸能部、与第一竖向吸能部对称设置的第二竖向吸能部；本发明的优点是：汽车门槛结构简单,吸能效果好,适应很多车型,使侧面碰撞峰值降低,能更好的保护驾驶员生命安全。

The invention belongs to the field of auto parts, and specifically relates to a car threshold with a special micro-cell filling layer. The car threshold includes: car door sill plates arranged on the inner and outer sides, and car door sills arranged on the inner and outer sides The micro cell packing layer between the plates, the micro cell packing layer is a three-dimensional structure composed of multiple unit cells arranged in the X direction, Y direction, and Z direction; the unit cell is composed of four energy absorbing parts, Two adjacent energy absorbing members are arranged perpendicular to each other. The top and bottom of the four energy absorbing members are connected by a cube connecting block to form a whole; the energy absorbing member includes a first transverse energy absorbing part, and a first transverse energy absorbing part. The second lateral energy absorbing part, the first vertical energy absorbing part, and the second vertical energy absorbing part symmetrically arranged with the lateral energy absorbing part; the advantage of the present invention is: car door sill structure It is simple, has good energy absorption effect, adapts to many models, reduces the peak value of side collision, and can better protect the life safety of the driver.