Patent ID: 6812611
Filing Date: 2004-11-02
Classification: H02K

Abstract:
A permanent-magnet type electric rotating machine comprising:a rotation axis; a rotor that rotates together with said rotation axis, said rotor having a closed-end-cup-shaped holder that is mounted at one end of said rotation axis and a permanent magnet fixed on an inner surface of a cylindrical portion of said holder; and a stator that rotatably supports said rotation axis, said stator having a housing bush that supports said rotation axis in an axis hole formed through the center thereof, stator cores that are radially and directly mounted around said housing bush to face the outer tip ends thereof to said permanent magnet with an air gap and coils that are wound around said stator cores via insulators, wherein each said stator core has a wide base portion connected to a narrow bobbin portion around which said coil is wound, and said wide base portions of said stator cores are connected to one another with pressure so as to form a ring-shaped yoke by mounting said stator cores around said housing bush.