Patent ID: 9742242
Date: 2017-08-22
CPC Classifications: H02K

Claim:
1. A rotary electric machine comprising: a housing including: a rotor that includes a shaft of which two axial end portions are rotatably supported by said first end plate and said second end plate and an annular rotor core that is fitted over and is fixed to said shaft, said rotor being disposed inside said housing; a first cooling fan that includes blades and is disposed on a first axial end surface of said rotor core; a stator that includes: an air channel dividing plate that is disposed between an axial direction of said first end plate and coil ends at a first axial end side of said concentrated winding coils that are positioned radially outside said first cooling fan, an inner circumferential edge of said air channel dividing plate being radially separated from said shaft, and a cyclic pathway being formed in which cooling air is blown out from said first cooling fan, flows radially outward along a first axial end surface of said stator core between axial positions of said first axial end surface of said stator core and said air channel dividing plate, and then flows radially inward between axial positions of said air channel dividing plate and said first end plate, and returns to said first cooling fan on an inner circumferential side of said air channel dividing plate, wherein said rotary electric machine comprises a first air channel converting member that is disposed on said first end surface of said stator core so as to be positioned radially outside a circumferential gap between coil ends at a first axial end side of circumferentially adjacent concentrated winding coils, and that converts said cooling air that is blown out from said first cooling fan and has flowed radially outward along said first axial end surface of said stator core from said circumferential gap between said coil ends at said first axial end side of said circumferentially adjacent concentrated winding coils into an axial flow toward said first end plate, wherein said first air channel converting member has a thickness that varies along a direction parallel to an axis of the shaft and tapers off towards an end portion of said first channel converting member.