| CPC H02K 9/193 (2013.01) | 7 Claims |
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1. A cooling structure for a rotary electric machine, the rotary electric machine including a ring-shaped stator, a rotor that is disposed to face the stator and is rotatable about a rotation axis, and a coil end formed in a side portion in an axial direction of the stator, the cooing structure comprising:
a coil end cover that covers the coil end, is provided so as to be able to store a coolant therein, and has a coolant introduction hole through which the coolant is introduced and a coolant discharge hole through which the coolant stored in the coil end cover overflows and is discharged to the outside;
rectifying portion that reverses flow of the coolant that has passed over the coolant discharge hole; and
a coolant supply unit connected to the coolant introduction hole and configured to supply the coolant into the coil end cover, the coolant supply unit includes a shower nozzle portion that introduces the coolant into the coil end cover through the coolant introduction hole, the shower nozzle portion injects the coolant at an angle with respect to the coolant introduction hole so that an injected coolant flows along a circumferential direction of the stator in the coil end cover,
wherein the rectifying portion being provided at a position where flow of the coolant along the circumferential direction of the stator passes over the coolant discharge hole.
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