Forced cooling rotary electric machine

摘要

The invention aims at providing a forced cooling rotary electric machine (1) capable of bringing temperature distribution close to a designed temperature distribution and avoiding becoming a larger size, and employs a wedge (11B; 11C) formed with ventilation grooves (11G) and a wedge (11A) not formed with the ventilation grooves to regulate the flow rates of cooling gas passing through air ducts (13), so that the cooling gas supplied to a part (15A1) of a stator core (8), in which temperature is low, can be caused to flow positively to a part (15A2, 15B) in which the temperature is high and the temperature distribution in the axial direction of the stator core (8) can be uniformized. As a result, the temperature distribution in the axial direction of the stator core can be brought close to a designed temperature distribution, and a forced cooling rotary electric machine that need not be made larger in size with a margin can be obtained.