전기 기계용 분배된 계단식 권선

1. A stator, comprising: a substantially cylindrical core having two axial ends and a plurality of longitudinally extending slots formed therebetween;a first wire disposed about substantially the entire circumference of the core, is disposed in a radial layer other than a radially outermost layer of a first slot of the plurality of slots and in a radially outermost slot of a second slot of the plurality of slots and one other radial layer of the second slot, the second slot being circumferentially adjacent to the first slot;a second wire disposed about substantially the entire circumference of the core, is disposed in the radially outermost layer of the first slot and is disposed in two radial layers other than the radially outermost layer of the second slot;wherein the first and second wires define a first plurality of slot groups of circumferentially adjacent slots wherein the first plurality of slot groups are circumferentially distributed about the stator core and define a first phase and wherein the first and second wires are disposed in a set of circumferentially adjacent slots including the first and second slots which define a first one of the slot groups of the first plurality of slot groups;wherein, between the first one of the first plurality of slot groups and a circumferentially adjacent second one of the first plurality of slot groups, the first and second wires define first and second end loops wherein, at a first one of the axial ends of the cylindrical core, the first wire defines the first end loop which has a pitch of N+1 and exits from the first slot and enters a slot disposed N+1 slots in a first circumferential direction from the first slot whereby there are N slots disposed between the slots exited and entered by the first end loop and wherein, at the first one of the axial ends, the second wire defines the second end loop which has a pitch of N−1 and exits from the second slot and enters a slot disposed N−1 slots in the first circumferential direction from the second slot whereby there are N−2 slots disposed between the slots exited and entered by the second end loop; andwherein the first and second wires each define N pitch end loops between the second one of the first plurality of slot groups and a circumferentially adjacent third one of the first plurality of slot groups and between the first one of the first plurality of slot groups and a circumferentially adjacent fourth one of the first plurality of slot groups wherein the third one of the first plurality of slot groups is disposed in the first circumferential direction relative to the second one of the first plurality of slot groups and the fourth one of the first plurality of slot groups is in the opposite circumferential direction relative to the first one of the first plurality of slot groups, and wherein there are N−1 slots disposed between the slots exited and entered by the first and second wires for each of the N pitch end loops.