EMBEDDED PERMANENT MAGNET ELECTRIC MOTOR

摘要

The embedded permanent magnet electric motor includes: a rotor having: a rotor core that has an outer circumferential surface that is constituted by a plurality of convex surfaces that are circular arc-shaped curved surfaces that are arranged continuously at a uniform angular pitch circumferentially; and a plurality of permanent magnets that are embedded in the rotor core so as to be positioned on a radially inner side of each of the circular arc-shaped curved surfaces; and a stator having: a stator core in which teeth are respectively disposed so as to extend radially inward from an annular core back and are arranged at a uniform angular pitch circumferentially to configure open slots; and a stator coil that is constituted by a plurality of concentrated winding coils that are wound into concentrated windings on each of the teeth.