| 摘要 |
PROBLEM TO BE SOLVED: To provide a permanent magnet synchronous unit having a variable magnetic force configuration which drives in one direction and requires no selection of magnet, which is used for permanent magnet synchronous motor with variable induction voltage by changing the phase of a rotor.SOLUTION: The permanent magnet synchronous unit includes: a stator having windings; a motor shaft; and a rotor which includes a first rotor which is fixed onto the motor shaft and has plurality of field magnets with polarity different from each other alternately disposed in a rotation direction; and a second rotor which is disposed in an axial direction relative to the first rotor and has plurality of field magnets with polarity different from each other alternately disposed in a rotation direction. The second rotor has a variable mechanism which does not change the peripheral direction position relative to the first rotor by a torque in a forward direction relative to the stator, but changes the peripheral direction position relative to the first rotor by a torque in an inverse direction relative to the stator. |
