| 摘要 |
Intended is to simplify the structure of the rotor of an electric motor f or supporting inducing magnetic poles, thereby to enhance the strength. An o uter roller (13), which is arranged between a stator having first and second armatures to establish a rotating magnetic field and an inner rotor having first and second permanent magnets, is provided with a rotor body (31) for b urying and supporting first and second dielectric magnetic poles (38L and 38 R) of a magnetically soft material. The first dielectric magnetic poles (38L ) and the second dielectric magnetic poles (38R) are aligned in phase, and a re inserted into and assembled with straight slits (31a) formed in the rotor body (31) in the direction of an axis (L). Thus, the first and second diele ctric magnetic poles (38L and 38R) are arrayed in the axis (L) direction, so that the outer rotor (13) is not only simplified in structure to improve th e strength but also facilitated in support or assembly by the first and seco nd dielectric magnetic poles (38L and 38R). |
