Patent ID: 7683517
Filing Date: 2010-03-23
Classification: H02K,Y10T

Abstract:
1. A rotary electric machine comprising: a stator core having a plurality of slots, each of said slots has an opening that is narrower than a circumferential width of the slot; and a coil piece mounted onto the stator core, wherein the coil piece for an entire single phase is formed by repeatedly winding a single wire having a flat-cross-section and continuously stacked so that the wire forms a plurality of wire layers that are laminated in a single row, wherein the coil piece has first portions each inserted into one of the slots and second portions that are not inserted into the slots, and wherein the first portions and the second portions are arranged alternately along the length of the wire, wherein the wire layers in each of said first portions are laminated while being aligned along a circumferential direction of the core inside the corresponding slot.