| 摘要 |
PROBLEM TO BE SOLVED: To provide a pack battery that increases the inside volume of a case 1 without making the case 1 thick, and prevents effectively the deformation of the case 1. SOLUTION: This pack battery divides a case 1 which incorporates a secondary battery 2 into a first case 1A and a second case 1B. In the first case 1A, a partition-wall 8 is arranged by integral molding, which protrudes inside and partitions a printed, board 4 and the battery, or partitions off the batteries installed adjacently. On the partition-wall 8, a fixation part 9 for coupling the second case 1B is arranged. In the second case 1B, a fixing-hook 10 is arranged by integral molding, which is protruded inside and hooked on the fixation part 9 of the partition-wall 8. By hooking the fixing-hook 10 on the fixation part 9 of the partition-wall 8, the first case 1A and the second case 1B are coupled through the fixing-hook 10 and the partition-wall 8.
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