Title:
ROTATING-MACHINE STATOR COIL
Document Type and Number:
Japanese Patent JP3653901
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the heat transfer rate of the main insulating layer of a coil by alternately winding mica insulating layers, in which mica materials are stuck on insulating reinforcing base materials, and filter adding layers impregnated or coated with thermosetting insulating resins containing inorganic fillers in the main insulating layers.
SOLUTION: Tape-shaped mica insulating layers 26 and tape-shaped filler adding layers 23 are wound alternately in a strand conductor bundle 51. Mica materials 24 are stuck on insulating glass fibers 21 through binders 25 in the mica insulating layers 26. The filler charged layers 23 are composed of materials, in which glass fibers 21 composed of mutually crossing warp 21A and weft 21B are impregnated with thermosetting insulating resins 22, in which inorganic fillers are contained. Since the heat transfer rate of the fillers contained in the filler charged layers 23 is made larger than that of mica, heat dissipation in improved, and a cooling effect is enhanced. The conductor sectional area of the coil can be reduced, and the frame of the whole rotating machine can also be shrunk.
Inventors:
Maeda Masao
Koji Haga
Koji Haga
Application Number:
JP32942596A
Publication Date:
June 02, 2005
Filing Date:
December 10, 1996
Export Citation:
Assignee:
Fuji Electric Systems Co., Ltd.
International Classes:
H02K3/34; H02K15/085; H02K15/12; (IPC1-7): H02K3/34; H02K15/085; H02K15/12
Domestic Patent References:
| JP8250344A | ||||
| JP63110929A | ||||
| JP58005903A |
Attorney, Agent or Firm:
Masaharu Shinobe
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