METHOD FOR MANUFACTURING STATOR USED FOR ROTATIONAL POSITION DETECTION DEVICE, STATOR USED FOR ROTATIONAL POSITION DETECTION DEVICE, AND ELECTRIC MOTOR

摘要

A method for manufacturing a stator (30) used for a rotational position detection device according to the present invention has a step of preparing a stator core (3), a first winding step, a second winding step, and a third winding step. First input windings and second input windings are wound around magnetic poles (14). The first input windings are distributed in a sinusoidal shape over the entire circumference of a yoke portion (3a) and are wound with N1 turns. The first input windings include lower layer first input windings and upper layer first input windings. The first input windings are divided by a division ratio (α) with respect to the N1 turns and one of the divided first input windings is set as the lower layer first input windings having N1a turns. The first input windings are divided by the division ratio (α) with respect to the N1 turns and the other of the divided first input windings is set as the upper layer first input windings having N1b turns. The second input windings are distributed in a sinusoidal shape having a phase different from the first input windings by 90° over the entire circumference of the yoke portion (3a) and are wound with N2 turns.