| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor in which cracking can be prevented effectively even if the magnetic flux is oriented reverse radially, in a surface permanent magnet field motor (SPM), and to provide a dynamo-electric machine including the same.SOLUTION: In a rotor, a magnet 32 is oriented so that the magnetic flux is converged to an arbitrary focal point O set on the radial outside of a rotor 3 on the magnetic pole center line, the magnet side fixing surface 32b, i.e., the fixing surface of the magnet 32 to the rotor 3, has a profile that is a tongue in a plane perpendicular to the axial direction, and the fixing surface 31a on the rotor core side, i.e. the fixing surface of the rotor 3 to the magnet 32 has a profile that is an arcuate recess. The magnet side fixing surface 32b and the fixing surface 31a on the rotor core side have a matching shape, and the orientation direction of the magnet 32 is set to become a normal line passing a contact P, for the tangent line T of the magnet side fixing surface 32b and fixing surface 31a on the rotor core side. |
