Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-10-17
2006-10-17
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S043000, C310S045000, C310S194000, C310S118000, C310S256000
Reexamination Certificate
active
07122934
ABSTRACT:
A rotating electric machine comprises: a stator including a stator iron core having a plurality of slots and a stator winding incorporated in the plurality of slots; and a rotor rotatably disposed in the stator via a clearance; wherein a mold (i.e., a slot insulator) made of an insulating resin is brought into close contact with the surface of a projection (i.e., a tooth core) of the stator iron core, formed between the adjacent slots, the thickness of the mold at a portion of the projection wound with the stator winding being smaller than that of the mold at other portions. Thus, it is possible to provide the rotating electric machine in which thermal resistance generated between the stator winding and the stator iron core can be reduced, thermal transmittance of heat generated in the stator winding to the stator iron core can be enhanced, and the cooling efficiency of the stator winding can be enhanced.
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Product and services Rynite PET thermoplastic polyester resin (DuPont.com).
Japanese Office Action dated Jan. 17, 2005.
Koizumi Osamu
Tajima Fumio
Yamamoto Noriaki
Crowell & Moring LLP
Hitachi , Ltd.
Mohandesi Iraj A.
Schuberg Darren
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