| 摘要 |
PROBLEM TO BE SOLVED: To arrange a power receiving coil at a position suitable for contactless charging.SOLUTION: A battery pack 100 comprises: one or more chargeable secondary batteries; an output terminal 31 for outputting power of the secondary batteries to the outside; a battery holder 20 holding the secondary batteries; a power receiving coil 40 that is electromagnetically coupled with an external power feeding coil 51 and can receive power; and an outer case 10 housing the battery holder 20 and the power receiving coil 40 inside and exposing the output terminal 31. The outer case 10 is divided into a first case 11 and a second case 12. The first case 11 is provided with a first stationary structure 21 to be fixed to the battery holder 20, and the second case 12 is provided with a second stationary structure 15 for fixing the first case 11 at a peripheral edge of a jointing portion jointed to the first case 11. The power receiving coil 40 and the first stationary structure 21 is arranged to be overlaid on each other in a plane view. |
