| 摘要 |
PROBLEM TO BE SOLVED: To suppress occurrence of trouble in the case of submergence.SOLUTION: The power storage device includes a box body (front and rear, right and left, and lower panels 30-34) having an opening at the top, and a lid body (upper panel 35) which closes the top opening of the box body, and the lid body has one end supported rotatably on the box body and the other end removably engaged with the box body. Consequently, when the atmospheric pressure in a housing rises owing to submergence, the other end (rear end) of the lid body (upper panel 35) is unlocked and the lid body rotates around the one end (front end) as a fulcrum to open the top opening of the box body. Consequently, the atmospheric pressure in the box body drops, so occurrence of trouble such as breakage of the housing can be suppressed. |
