| 摘要 |
PROBLEM TO BE SOLVED: To facilitate manufacture by reducing man-hours in a winding step in a three-phase duplex motor formed from a first group of three-phase coils and a second group of three-phase coils and a manufacturing method thereof.SOLUTION: Coils (3) of phases in Δ connection of each of the groups are wound reversely to each other with neighboring two teeth (2) as a pair among a plurality of teeth included in a concentrated winding stator (1), connected in series and wound in the same direction in each of the pairs. When the stator is formed annular, the coils of the corresponding phases in each of the groups are disposed at positions facing each other with a rotary shaft of a motor interposed therebetween, and a drive current of a first inverter (7) to a three-phase coil (4) in the first group and a drive current of a second inverter (8) to a three-phase coil (5) in the second group have a phase difference of an electric angle π from each other.SELECTED DRAWING: Figure 1 |
