BRUSHLESS MOTOR

PROBLEM TO BE SOLVED: To provide a brushless motor which reduces an energy loss by employing a rotor plate which reduces magnetic braking force exerted on the rotor plate while keeping appropriate stiffness. SOLUTION: The brushless motor includes a stator plate 11 in which a plurality of drive coils 15 are annularly arranged, and the rotor plate 23 which has a magnet 22 facing the drive coils 15 and is rotatably supported by the stator plate 11. The stator plate 11 comprises a substrate α of a metal non-magnetic material such as aluminum and cooper, and films β of a plating magnetic material such as nickel and iron, which are formed on a front and a rear faces of the substrate α of the non-magnetic material. COPYRIGHT: (C)2008,JPO&INPIT