| 摘要 |
An objective of the present invention is to reduce the manufacturing cost of a multilayer wiring board by reducing torque ripple and the number of layers in the multilayer wiring board. A three-phase permanent magnet type motor (100) includes a stator (2) in which a plurality of coils (40) wound in the same direction are disposed and the number of slots is 12n (n is a natural number); a rotor (1) in which the number of poles of the permanent magnet (20) is 10n or 14n; and multilayer wiring boards (3) to (6) connected to be 2m parallel (m is a divisor of the n, including one). The three-phase permanent magnet type motor has a circuit configuration in which, among U-phase, V-phase, and W-phase, adjacent in-phase coils (40) are connected in parallel and are connected in series with a homopolar coil of a symmetrical in-phase second coil group facing at 6-slot pitch angle, when the center of a first coil group of the adjacent in-phase coils is set as a reference axis (B), and in-phase transition wiring patterns are disposed on the same layer of the multilayer wiring boards (4, 5, 6) in a line symmetrical manner. |
