| 摘要 |
<p>[Problem] To maintain the electromagnetic coupling efficiency between a power-receiving coil and a power-transmitting coil, while making the thickness thin. [Solution] This battery pack is placed on a charging stand and can be charged in a non-contact manner, and is provided with: a square rechargeable battery cell (1) having a width that is wider than the thickness; a power-receiving coil (4) that is positioned on a surface of the rechargeable battery cell (1), and can be electrically coupled with a transmitting coil built into the charging stand; a holder (2) having a coil-positioning hole (2A) for accommodating the power-receiving coil (4) opened therein; a magnetic sheet (3) that is positioned between the rechargeable battery cell (1) and the power-receiving coil (4), and is formed at a size that enables the magnetic sheet (3) to be accommodated in the coil-positioning hole (2A); and a coil cover (6) that is inserted into the coil-positioning hole (2A) with the power-receiving coil (4), which is positioned on the magnetic sheet (3), positioned in the coil-positioning hole (2A).</p> |
