| 摘要 |
PROBLEM TO BE SOLVED: To accommodate a cable so as not to lie in the way during non-use.SOLUTION: A portable power supply device comprises: a cylindrical secondary battery 2; a cylindrical main body case 1 in which the secondary battery 2 is accommodated; a tabular circuit board 3 on which a charge circuit 31 and a discharge circuit 32 of the secondary battery 2 are mounted; and a cable part 4 which is pulled out of an end face 1x of the main body case 1 and with which a connection terminal 5 is provided in a distal end. The main body case 1 is divided, in a length direction, into a battery housing part 1A for housing the secondary battery 2 and a board housing part 1B for housing the circuit board 3, and the cable part 4 is pulled out of the end face 1x of the board housing part 1B. Further, in the main body case 1, the circuit board 3 is positioned in a substantial center of a cylindrical cross-sectional face and disposed in the board housing part 1B while extending in the length direction, and in a space that is formed at a side of a first surface 3A of the circuit board 3 and on a surface of the main body case 1, a housing recess 6 is formed for housing the cable part 4 and the connection terminal 5.SELECTED DRAWING: Figure 6 |
