Battery Holder Beams Enhance Case Strength

The patent introduces reinforcement beams that extend in the thickness direction (Z-direction) from the inner surface of the case toward the outer surface. This vertical dimensionality addition allows the case to maintain thinness in the primary direction while gaining structural strength through the thickness dimension, effectively resolving the contradiction between thinness and strength.

The case is segmented into multiple functional regions: thin portions for portability and reinforcement beam portions for strength. The reinforcement beams are positioned at specific locations (such as corners and edges) to provide targeted structural support without requiring the entire case to be thick, thus maintaining overall thinness while achieving necessary strength.

The reinforcement beams are integrated directly into the case structure as an integral part of the housing, rather than being separate attached components. This merging approach provides necessary structural reinforcement while minimizing additional complexity, as the beams share the same material and manufacturing process as the case itself.

Reinforcement is applied locally only where structurally necessary (such as corners, edges, and areas subject to stress) rather than uniformly throughout the entire case. This localized approach increases strength at critical points without adding unnecessary complexity or material to the entire structure.