| 摘要 |
<p>PURPOSE:To obtain a magnetically leviated motor wherein its size is small and its levitating force is sufficient by a method wherein a rotary magnetic field is generated in a stator, the levitating force is obtained by the mutual magnetic action between the rotary magnetic field and a permanent magnet and a current used to turn a rotor is made to flow to a stator winding so as to be superposed on a current used to obtain the levitating force. CONSTITUTION:A prescribed current is supplied to windings 3a, 3-b,...3-e, 3e, 3-a which have been arranged at the inside of slots 21, 22,...212 formed on the inner circumferential face 6f a stator 1, a sextupole rotary magnetic field and a quadrupole rotary magnetic field which is used to generate a motor torque are generated along the inner circumferential face of the stator 1. A levitating force and the rotary force of a motor are obtained by the mutual magnetic action between the rotary magnetic fields and permanent magnets 8a, 8b, 8c, 8d which are installed on a rotor 5. Thereby, since the rotor 5 is levitated magnetically and turned, it is not required to install a mechanical support mechanism in the racial direction. Consequently, the structure of the title motor can be made small, and sufficient, levitating force of the title motor can be obtained.</p> |
