Armature and manufacturing method thereof

An armature adapted to a rotating electric machine provided with a field magnet including a plurality of magnetic poles having alternating polarities in a circumferential direction, the armature being disposed facing the field magnet, the armature comprising:

• a three-phase armature winding;
• and
• an armature core disposed opposite to the field magnet in a radial direction with the three-phase armature winding interposed therebetween,
• wherein
• the armature winding includes conductors arranged in the circumferential direction at predetermined intervals in the order of a first phase, a second phase and a third phase;
• a first insulation sheet is arranged to sequentially pass through a field magnet side with respect to a first conductor corresponding to the first phase in a radial direction, a portion between the first conductor and a second conductor corresponding to the second phase, an armature core side with respect to the second conductor and a third conductor corresponding to the third phase in the radial direction and a portion between the third conductor and the first conductor;
• and
• a second insulation sheet is arranged to sequentially pass through a portion opposite to the first conductor with respect to the first insulation sheet in the radial direction, a field magnet side with respect to the second conductor in the radial direction, a portion between the second conductor and the third conductor, a portion between the third conductor and the first insulation sheet in the radial direction and a portion between the third conductor and the first insulation sheet in the circumferential direction.