| 摘要 |
PURPOSE: A motor is provided to minimize the leakage of the magnetic flux from a rotor core by distributing a plurality of caulking parts to a circumference direction. CONSTITUTION: A stator has a stator core and teeth. A stator coil is wound around the teeth. The rotor is arranged in the stator. The rotor has a first curved part(310) and a second curved part(320). The first curved part corresponds to the outer end of the permanent magnet. The second curved part corresponds to the inner end of the permanent magnet. The length of the first curved part is longer than the length of the second curved part. A radius of curvature of the first curved part is larger than the radius of curvature of the second curved part. A plurality of caulking parts(350) are dispersedly arranged to the circumference direction of the rotor. |
