Patent ID: 7342330

Claim:
A hybrid type complex three-phase electric rotating machine, comprising: a stator core that is provided with twelve or twenty-four stator poles radially extended from a fixed portion, each of said respective stator poles having a same number of inductors at the tip ends thereof; a plurality of coils that are wound around said respective stator poles, said coils being connected so that a pair of said stator poles being substantially symmetric with respect to a point are excited in opposite polarities when the number of said stator poles is twelve, or so that four stator poles arranged at every about 90 degrees are alternately excited in opposite polarities in the circumferential direction when the number of said stator poles is twenty-four; and a rotor that is arranged with a predetermined air gap with respect to said inductors, said rotor having a pair of rotor cores each of which has rotor teeth facing to said inductors and a permanent magnet magnetized in the axial direction that is sandwiched between said rotor cores, said rotor cores being arranged to be deviated in angular position by ½ the pitch of said rotor teeth, wherein an angle β/m formed between an inductor of any one stator pole and an inductor at the corresponding position of the next stator pole and an angle α/m formed between an inductor of any one stator pole and an inductor at the corresponding position of the second-to-next stator pole, satisfy the following equations: (360 n± 60)/ Nr=α/m (1) (360 k± 30)/ Nr=β/m (2) where m=1 for the twelve pole type, m=2 for the twenty-four pole type, Nr is a number of said rotor teeth of said rotor core, and n and k are positive integers.