| 摘要 |
PROBLEM TO BE SOLVED: To reduce manhour required for insulating a coil end. SOLUTION: One coil end 60 of a stator coil 40 is provided with coil conductors 42U, 42V, and 42W for input/output to/from stator coil extensions of stator coils of U, V, W phases and with an extended coil conductor 41 for neutral point connection. The stator coil extensions are bent at ends of slots 22 of a stator core 16, and extended as diagonal portions 61. Each diagonal portion 61 is coated with a uniform insulating powder film 62 to ensure a sufficient insulation breakdown voltage. The insulating powder film 62 is made of an epoxy resin, and is formed by electrostatic powder coating, fluidized bed coating, etc. COPYRIGHT: (C)2011,JPO&INPIT |
