Electric rotary machine

Details Electric rotary machine Electric rotary machine

2005-09-15

2008-09-30

Le, Dang D (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S089000, C310S043000

Reexamination Certificate

active

07429810

ABSTRACT:
In the stator of a electric rotary machine in which heat conductive insulation resin is filled at the end portions of a stator coil, the material of a stator core, the stator coil, the heat conductive insulation resin and a frame is selected such that a linear thermal expansion coefficient α1 of the stator core, a linear thermal expansion coefficient α2 of the stator coil, a linear thermal expansion coefficient α3 of the heat conductive insulation resin being filled and a linear thermal expansion coefficient α4 of the frame satisfy a relation that α1<α2 <α4≦α3. A cooling medium path is integrally formed within the frame made from aluminum through die casting molding.

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