Patent ID: 6992409
Filing Date: 2006-01-31
Classification: H02K

Abstract:
1. A rotary electric machine, comprising: a stator core, which has a cylindrical shape and includes a slot therein; a rotor, which is rotatably supported inside of the stator core; a casing, which accommodates the rotor and the stator core; a stator coil, which is inserted in the slot of the stator core, and includes a coil end protruded from a side face of the stator core; a cooling unit, which includes a coolant passage formed directly in a body of the cooling unit; an electric part, which is mounted on the cooling unit, and controls the stator coil, wherein the coolant passage is accommodated in a space defined by a side face of the stator core and an outer circumference wall of the coil end, and the cooling unit contacts the side face of the stator core, wherein the coolant passage of the cooling unit is annular; wherein the cooling unit includes a plate and a body, the coolant passage is disposed in the body and has an opening, the opening is opened in the axial direction of the rotor, and the plate has a ring plate shape and adheres to the body of the cooling unit so that the plate seals the opening of the coolant passage.