Patent ID: 7779532

Claim:
A manufacturing method of a hybrid permanent magnet type electric rotating machine, the method comprising: constructing a stator by winding excitation coils around respective main poles, and by forming a plurality of inductors on a tip portion of each of said main poles; constructing a rotor by fixing a first rotor unit, which includes a pair of rotor cores arranged with deviation of ½ a pitch of small teeth formed around said rotor cores in a circumferential direction and a magnetic magnet material sandwiched between said rotor cores, and a second rotor unit, which has a same construction as said first rotor unit, to a common rotation shaft so that positions of the small teeth of the adjacent rotor cores of said first and second rotor units are identical; assembling said rotor to said stator with a predetermined air gap therebetween to make an assembled body so that said rotor is free to rotate by means of a first bracket arranged at an outside of said first rotor unit and a second bracket arranged at an outside of said second rotor unit; magnetizing said magnet material of said first rotor unit in an axial direction by a magnetizing flux passing through said first bracket and said first rotor unit in the axial direction, passing through a stator core in a direction perpendicular to the axial direction, and passing through a first magnetizing path that connects a portion including said rotation shaft at a side of said first bracket to an outer circumference of said stator core through a yoke positioned outside said assembled body, wherein the magnetizing flux passes through a half of said assembled body in the axial direction; and magnetizing said magnet material of said second rotor unit in the axial direction in a polarity opposite to that of said magnet material of said first rotor unit by a magnetizing flux passing through said second bracket and said second rotor unit in the axial direction, passing through said stator core in a direction perpendicular to the axial direction, and passing through a second magnetizing path that connects the portion including said rotation shaft at a side of said second bracket to the outer circumference of said stator core through a yoke positioned outside said assembled body, wherein the magnetizing flux passes through the remaining half of said assembled body in the axial direction.