| 摘要 |
<p>A portable power supply is provided with a cylindrical body case (1) accommodating a cylindrical secondary battery (2) therein, a flat circuit board (3) having a charging circuit (31) and discharging circuit (32) for the secondary battery (2) mounted thereon, and a cable part (4) that is drawn out from an end surface (1x) of the body case (1) and has a connection terminal (5) attached to the leading end thereof. The body case (1) is divided in the longitudinal direction into a battery accommodation part (1A) for accommodating the secondary battery (2) and a board accommodation part (1B) for accommodating the circuit board (3). The cable part (4) is drawn out from the end surface (1x) of the board accommodation part (1B). The circuit board (3) is positioned in the board accommodation part (1B) roughly in the center of a cylindrical cross-section of the body case (1) and is disposed so as to extend in the longitudinal direction. An accommodation recess (6) is formed that is a space formed on a first surface (3A) side of the circuit board (3) and accommodates the cable part (4) and the connection terminal (5) on the surface of the body case (1).</p> |
