| 摘要 |
<p>In an electric automobile (1), a battery unit (2) is reliably protected from large deformation during a collision. When a frame (15) plastically deforms by a large amount, a large shearing force acts on a mechanical fuse (8) and a shear fracture occurs in a layered surface (23) (a rupture direction control function (23)). In a front-side mechanical fuse (8f), a rupture direction control function (23f) works so as to push the battery unit (2) forward and downward. In a rear-side mechanical fuse (8r), a rupture direction control function (23r) works so as to push the battery unit (2) rearward and downward. As a result, a force acts so as to push the battery unit (2) downward. The battery unit (2) thereby reliably detaches from a vehicle body (1). During normal travel, the mechanical fuse (8) maintains a stable connected state.</p> |
