| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamo-electric machine which has high-torque, low-vibration, and large-resolution at low cost, in a dynamo-electric machine combining in multiple stages a main-pole-saved type stator where the number of main poles as wound poles reduced to half and a composite hybrid type rotor where hybrid permanent magnet type rotors having two HB type rotors magnetized reversely to repulse each other. SOLUTION: The rotor has a plurality of inductors at each tip of four two-phase main poles, three three-phase main poles or five five-phase main poles which are provided radially by polygonal or roughly annular magnetic substances, and has N<SB>r</SB>(two or more) teeth which are provided rotatably via an air gap. Two axially magnetized permanent magnets are shifted by half a tooth pitch from each other to catch them. They are provided closely on a common rotating shaft, and the adjacent rotors are the same in tooth positions, and are magnetized into the same polarity to form a composite rotor unit, and these two or more composite rotor units adjoin one another on the same shaft. COPYRIGHT: (C)2009,JPO&INPIT
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