本发明公开了一种具有两级结构的汽车吸能盒,包括：前安装板；一级结构,其一端连接所述前安装板,二级结构,其一端固定安装在所述中间稳定板上,包括：二级外筒；二级内筒,其套设在所述一级外筒内部；二级弹簧,其设置在所述一级外筒内,并套射在所述一级内筒外侧；后安装板,其连接所述二级结构的另一端,还提供了一种两级结构汽车吸能盒的吸能分配方法,通过调节刚度比例,实现两级结构的吸能分配。

The invention discloses an automobile energy absorbing box with a two-level structure, which includes: a front mounting plate; a primary structure, one end of which is connected to the front mounting plate, a secondary structure, and one end of which is fixedly mounted on the middle stabilizer plate , Including: a two-stage outer cylinder; a two-stage inner cylinder, which is sleeved inside the first-level outer cylinder; a two-stage spring, which is arranged in the first-level outer cylinder and is sleeved on the first-level inner cylinder The outer side; the rear mounting plate, which is connected to the other end of the secondary structure, also provides a method for energy absorption distribution of a two-level structure automobile energy absorption box, by adjusting the stiffness ratio, the energy absorption distribution of the two-level structure is realized.