| 摘要 |
PURPOSE:To obtain an accurate output in a simple structure by providing a reinforcing member for preventing the deformation due to tension applied at the molding time in a generating coil. CONSTITUTION:A small-sized motor in which a tachometer generator 21 is mounted, is composed of a rotor unit having a rotor magnet 32 and a rotational shaft 31, a stator yoke and case 34 to which a drive coil 33 is secured, and a stator unit having a bearing 35 and a position detector 36. The generator 21 has a multipolar magnet 22, a generating coil 20 and a case 23. The magnet 22 is radially magnetized, and the coil 20 is disposed oppositely to the magnet. The coil 20 is positioned by a sheetlike printed coil positioning member 18 and a reinforcing member 17, and formed circularly with resin. |
