| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric generator that is reduced in a cogging torque and has superior electric generation efficiency. <P>SOLUTION: The electric generator includes a plurality of unit electromotive parts each including a rotor having a plurality of field magnets arranged peripherally in a disk-like or cylindrical shape at equal intervals and a stator arranged concentrically at an outer periphery of or at a position opposed to the rotor and apart from the rotor, including a comb tooth part group comprising 3k comb tooth part arranged peripherally at equal intervals, and provided with coils of 3 m phases, and also has respective rotors fixed to one shaft. Phases of the field magnets of the respective rotors are shifted in peripheral directions of the rotors respectively, and the comb tooth parts of the respective stators are put in phase among all the unit electromotive parts to make positions where generated cogging torque becomes maximum different among the respective unit electromotive parts, and (i)th phases of the stators of the respective unit electromotive parts are electrically interconnected in series. <P>COPYRIGHT: (C)2013,JPO&INPIT |
