| 摘要 |
PURPOSE: A motor is provided to minimize power consumption by blocking the power supplied to a magnet which is attached to the motor. CONSTITUTION: A stator(10) comprises a stator permanent magnets(14,16,18,20) and magnetic force shielding plates(22,24,26,28). A rotor(50) comprises a supporting member(52) arranged in the inner surface of the stator and rotor permanent magnets(54,56) leaving the constant interval in the outer circumference of the supporting member. A rotary shaft(70) is fixed to the supporting member. A magnetic field switching unit is located between both side and housing of the magnetic force shielding plate and shields or passes the magnetic force. |
