| 摘要 |
PURPOSE:To form a hybrid motor inexpensively and small in size by providing a stator armature for a stepping motor and a driving poles for a DC brushless motor. CONSTITUTION:A hybrid motor 1 is closed by a cup unit 2a of a magnetic material and a stator yoke 2b which is operated also as a motor mounting plate at the lower opening of the unit to form a body 2. This rotary shaft 3 is radially oriented with a driving poles 4 for a PM type stepping motor on its outer periphery to be magnetized in multipoles to form a driving poles 5. A cup-shaped magnet rotor 7 is secured to the lower end face. A bearing 8 is provided at the center of the yoke 2b, and a printed wiring board 10 is provided on its upper face. Further, a stator armature 15 having first - second stator armatures 15a-15b is disposed on the inner periphery of the unit 2a, and a stator armature 17 for a DC brushless motor is fixedly disposed. Thus, the hybrid motor 1 is organically coupled with the function of both motors, such as the rotary magnetic encoder. |
