Patent ID: 7952240
Filing Date: 2011-05-31
Classification: H02K

Abstract:
1. A rotary electric machine having a stator comprising: a coil; and a cooling unit that cools a coil end of the coil, which projects in an axial direction of the stator, wherein: the cooling unit includes: the outer periphery cooling portion and the end surface cooling portion include a cooling medium flow passage through which the cooling medium flows so as to be supplied in common to the plurality of injection holes, the outer periphery cooling portion and the end surface cooling portion are formed integrally to cover the outer peripheral surface and the axial end surface of the coil end such that respective portions of the cooling medium flow passage in the outer periphery cooling portion and the end surface cooling portion communicate with each other, and the cooling unit is formed from an insulating material and disposed in an insulating space between a case housing the stator and the coil end.