Patent ID: 8304940

Claim:
A stator comprising: a cylindrical stator core, which has a plurality of slots that are provided at predetermined intervals in a circumferential direction and open toward an inner peripheral surface of the stator core; and a coil, which has a coil end portion protruding from an axial end of the stator core, wherein the coil end portion includes a plurality of axial conductor portions, which are provided continuously with slot conductor portions that are respectively inserted in the plurality of slots, and extend from the plurality of slots outwards in an axial direction of the stator, the stator includes a cover member provided with a main body portion that covers at least an outer peripheral surface of the coil end portion along an entire circumference, accommodating chambers that are formed radially inside the main body portion and individually accommodate the plurality of axial conductor portions, and an introducing path through which a cooling medium is introduced into the accommodating chambers, and a gap between an inner wall surface of each of the accommodating chambers and each of the axial conductor portions serves as a cooling path in which the cooling medium introduced from the introducing path flows, and the cooling path has a throttle portion where a flow path cross-sectional area gradually decreases from a junction with the introducing path toward a downstream side.