| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor having high torque by a winding structure without causing a loss of coil end in spite of a coreless structure. <P>SOLUTION: A motor having a plurality of air-core coils comprises: a rotor having a cylindrical shape; a rotating shaft extended in a center axis direction of the rotor; a base rotatably supporting the rotating shaft; and a cylindrical can-like stator covering the rotor. The rotor has: first magnets, of which N poles and S poles are alternately disposed on both cylinder top and bottom surfaces in a circumferential direction; and a second magnet, of which N poles and S poles are alternately disposed on a cylinder lateral in the circumferential direction. The stator has: portions opposite to the both cylinder top and bottom surfaces of the rotor; a portion opposite to the cylinder lateral of the rotor; and a space inside. <P>COPYRIGHT: (C)2012,JPO&INPIT |
