| 摘要 |
<p>The backpack has a main pocket (7) defined by a dorsal wall (2) that is arranged in contact with the back of a user. An outer wall (3) is arranged opposite the dorsal wall. A side wall connects the dorsal and outer walls. The dorsal and side walls are made of flexible fabric materials (20, 30). A rigid flat battery housing (11) has a dorsal face (11a) that is arranged parallel to and at the proximity of the dorsal wall. The outer wall has a rigid enclosure (35) arranged opposite the housing. The rigid enclosure covers a zone that is largely extended than a corresponding zone of the housing.</p> |
