Patent ID: 9035525
Filing Date: 2015-05-19
Classification: H02K

Abstract:
1. A 3-phase 2-pole 2-layer armature winding of a rotating electrical machine, housed in 72 slots provided in a laminated iron core, the winding for each phase comprising: six parallel circuits separated into two phase belts comprising first and second phase belts, each parallel circuit comprising two coil pieces, an upper coil piece and a lower coil piece, connected in series with each other at a connection side coil end and at a non-connection side coil end; and the parallel circuits being connected such that upper coil pieces of first and fourth parallel circuits are placed at 3rd, 4th, 7th, and 12th positions from the center of a pole, and lower coil pieces of the first and fourth parallel circuits are placed at 1st, 6th, 9th, and 10th positions from the center of a pole; upper and lower coil pieces of second and fifth parallel circuits are placed at 2nd, 5th, 8th, and 11th positions from the center of a pole; and upper coil pieces of third and six parallel circuits are placed at 1st, 6th, 9th, and 10th positions from the center of a pole, and lower coil pieces of the third and six parallel circuits are placed at 3rd, 4th, 7th, and 12th positions from the center of a pole, when relative positions of the upper and lower coil pieces in one phase belt are indicated by positions counted sequentially from the center of a pole.