Patent ID: 9680345
Date: 2017-06-13
CPC Classifications: H02K

Claim:
1. A stator for a rotating electric machine, comprising: an annular stator core having a plurality of slots circumferentially arranged in the stator core, and a stator winding wound around the stator core and comprised of a plurality of U-shaped conductor segments, each of the conductor segments including a pair of slot-received portions inserted in different slots and a pair of circumferentially angled portions integrally connected with the respective slot-received portions and extending outside of the different slots, prescribed angled portions of different conductor segments being joined at their junction end portions to form the stator winding, wherein each of the plurality of conductor segments includes a conductor and a bilayer insulative coating comprised of an insulating layer covering a peripheral surface of the conductor and a protective layer covering a peripheral surface of the insulating layer, the protective layer being formed of a material having a Young's modulus that is equal to or greater than a Young's modulus of the insulating layer at room temperature and less than the Young's modulus of the insulating layer in high temperature environments caused by heat generation of the stator winding.