Battery Pack Bottom Protection Plate for Impact Energy Absorption

The bottom protection plate is divided into multiple functional layers: a protective outer layer with fiber-reinforced composite layers for structural strength, an impact-resistant layer for force distribution, and an energy-absorbing layer with drainage channels for energy dissipation. This segmentation allows each layer to specialize in specific protective functions, collectively achieving high impact resistance while maintaining reasonable structural complexity.

The protection plate employs composite material structures including fiber-reinforced composite layers in the protective outer layer, combining materials with different properties to achieve both strength and energy absorption capabilities. The integration of steel plates and balsa wood in the energy-absorbing layer further demonstrates composite material application for optimized impact resistance.

The energy-absorbing layer incorporates balsa wood with a porous cellular structure that efficiently absorbs impact energy through cell collapse and deformation. The drainage channels integrated into this layer further enhance energy absorption while providing a straightforward manufacturing approach that avoids complex machining operations.

The energy-absorbing layer is segmented into multiple components including steel plates, balsa wood blocks, and drainage channels. This segmentation allows each component to be manufactured separately using appropriate processes and then assembled, reducing overall manufacturing difficulty while maintaining high energy absorption capability.