| 摘要 |
PURPOSE:To absorb a stress due to a heat or the like by providing a cutout at the bore side of a shielding plate, and connecting fixedly a plastic magnet through the cutout to a winding securing resin of an armature. CONSTITUTION:A flat motor has an armature 4 in which a winding is secured in a flat shape by resin molding, a shielding plate 2 is further disposed, and a speed detecting plastic magnet 1 is provided thereon. A magnetic sensitive element 3 is disposed oppositely to the magnet 1 at a stator side. In this case, a cut out 2b is formed at the bore side of the plate 2, thereby connecting fixedly the magnet 1 to the winding securing resin of the armature. Thus, the allowable value of the temperature rise in the motor is broadened to improve the impact durability. |
