| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack the cost of which can be reduced furthermore, while ensuring impact resistance at the time of falling.SOLUTION: In a battery pack 1 having a convex part 4a where a part of a case 4 is exposed to the outside, the sidewall of the convex part 4a consists of a first part 4c in the overhang direction of the convex part and on the reverse side of an apparatus when mounted on the apparatus, a second part 4d continuous at the end 4g of the first part 4c and in the direction crossing the overhang direction, a third part 4e continuous at the end 4i of the second part 4d and on the side facing the apparatus when mounted thereon in the overhang direction, and a fourth part 4f continuous at the end 4h of the third part 4e and on the side facing the apparatus when mounted thereon in a direction crossing the overhang direction. An inclined wall 8a is formed of resin, as an impact buffering part, along a virtual line 4j connecting the intersections 4g and 4h. |
