| 摘要 |
PURPOSE:To eliminate leakage flux and prevent noise or the like from being generated, by a method wherein a rotor having salient poles, a fixed armature, and the first - fourth exciting coils are specifically constructed, and wherein current is conducted to the exciting coils on the first and the second conduction control circuits. CONSTITUTION:A rotary shaft 1 for a motor of reluctance type is supported by a ball bearing 1a for a circular cylindrical bearing unit 24, to be freely rotated. The magnetic poles 3a-3d of an armature 3 are mutually separated at the angle of 90 deg., and exciting coils 4a-4d are formed on the magnetic poles respectively, and the magnetic poles 3e-3h are also formed in the same way and are respectively provided with the exciting coils 4e-4h. Salient poles 2a-2f are arranged at the open angle of 30 deg. on a rotor 2, and said rotary shaft 1 is fixed on the central section of the bottom of a rotary unit 5 formed in a cup shape. When the rotor 2 is rotated clockwise, then an air-core 11 is separated from the salient pole 2a, and current is conducted to the exciting coils 4b and 4d, and the rotor is rotated clockwise in succession. The exciting coils 4a, 4c and the coils 4b, 4d are alternately conduction-controlled on the first and second conduction control circuits by means of the position-detecting output of the coil 11. |
