| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a motor at low cost, by separately winding a rotor winding in a plurality of layers. <P>SOLUTION: The motor is arranged in a motor case, and has a stator 3 on which armature windings 5 are wound, and a rotor 6 rotatably attached to the motor case. The rotor 6 has a core portion 9 formed in the rotation center, and a plurality of teeth 10 extended radially from the core portion 9. Field windings 11, 12 separated into two layers in a radial direction are wound in each tooth 10. An inner peripheral retaining member 13 is provided between a pair of adjacent teeth 10, so as to be located at a position outward in a radial direction of the field winding 11 on the inner peripheral side. An outer peripheral retaining member 14 is so provided as to be located at a position outward in a radial direction of the field winding 12 on the outer peripheral side. The retaining member 13, 14 cover the outside of the field winding 11, 12, respectively, and hold the field winding 11, 12 against a centrifugal force associated with the rotation of the rotor 6. <P>COPYRIGHT: (C)2010,JPO&INPIT |
