| 摘要 |
Provided is a motor comprising a stator and a rotor arranged in the inner circumference of the stator. The stator is constituted of a generally cylindrical stator core, and a coil wound with a conductor. The stator core has an outer circumference portion to become the outer circumference wall of the stator, and an inner circumference portion to be wound with a conductor. Moreover, the outer circumference portion is made of a first sintered metal of a pressed-powder magnetic material, and the inner circumference portion is made of a second sintered metal of a pressed-powder magnetic material. The first sintered metal has a higher mechanical strength than that of the second sintered metal. Moreover, the outer circumference portion and the inner circumference portion are diffusion-junctioned to form the stator core. |
