Non-salient pole generator rotor groove insulation structure

The utility model relates to a non-salient pole generator rotor groove insulation structure. The insulation structure comprises a rotor coil, a rotor groove portion, a rotor notch and a rotor groove bottom filler strip. The wire of the rotor coil utilizes an electromagnetic wire of SBMYFB-40/155. The inner layer of the electromagnetic wire is repeatedly coated by poly imide adhesive tapes. The outer layer of the electromagnetic wire utilizes a sintering structure by coating a single terylene fiberglass layer. The two ends of the rotor groove portion and the rotor notch are coated by two or more TFT material layers having the thickness of 0.35 mm. The rotor notch is coated by an epoxy laminated glass cloth plate having the thickness of 3 mm. The groove bottom filler strip utilizes an epoxy laminated glass cloth plate having the thickness of 0.5 mm. In the usage process of the insulation structure, a turn-to-turn fault can be prevented in an insulation tape-out process, and problems of groove portion insulation