| 摘要 |
PURPOSE:To reduce the size and to increase the efficiency by mounting a controller on a substrate having arms contacted with an engaging hole to be engaged with a projections of a bobbin of a stator winding and a stator core, and interposing it between the support of a bracket and the core. CONSTITUTION:A yoke 3 on which a winding 2 is wound is provided at a stator core 1, a permanent magnet is provided at the core of a rotor to be mounted on a rotational shaft, they are assembled by the first and second brackets to form a small-sized motor. A controller 23 for molding a control circuit and a rotor position detector 24 are mounted on a substrate 25. In this case, engaging holes 26, 27 and arms 28, 29 are provided on the substrate 25, and projections 33, 34 to be engaged with the holes 26, 27 are provided on a bobbin 30 of a stator winding 2. Thus, after the holes 26, 27 of the substrate 25 are engaged with the projections 33, 34 of the bobbin 30 and positioned when a motor is assembled, the substrate 25 is interposed between the core 1 and the second bracket to readily and accurately mount the substrate 25. |
