| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric motor in which damage on a stator core can be suppressed during injection molding.SOLUTION: An electric motor includes an annular stator 3 having an outline 7 molded of a mold resin 6, and rotors 2, 2A disposed to face the magnetic pole face MF of the stator 3 and rotating. The stator core 32 of the stator 3 consists of a plurality of split cores 32D formed by compression molding magnetic powder. On the magnetic pole face MF of the split cores 32D (stator core 3), a columnar relaxation part 10 for relaxing a force applied to the split cores 32D, by concentrating a force applied from molding dies 5, 5A on the magnetic pole face MF excepting the formation region A of a flange 32b, is provided. |
