| 摘要 |
PURPOSE:To obtain a motor which can be readily manufactured and adapted for a servo motor in a small size by multipolarizing the outer periphery and the ends of a magnet rotor, and integrally forming drive poles and poles for a magnetic encoder. CONSTITUTION:Two magnetic hollow ring-shaped stator armatures 2-1, 2-2 in which pole pieces 3a, 3b, 3a', 3b' are formed at the inner periphery and coils are wound are superposed, and a magnet rotor 6 is disposed in the central hollow body 11. The outer periphery of the rotor 6 is multipolarized to form drive poles 6a, and the end is multipolarized to form poles 6b for a magnetic encoder. Magnetic sensors 13-1, 13-2 are mounted on a stator to oppose to the poles 6b of the end to integrally form a magnetic encoder. |
