High efficiency energy saving motor self lubricating enamelled wire

The invention discloses a high efficiency energy saving motor self lubricating enamelled wire comprising a copper round wire (1); the surface of the copper round wire (1) is wrapped in sequence from inside-out by a polyester imine paint layer (2), a polyamide-imide(PAI) paint layer (3) and a nanometer polyamide-imide(PAI) paint layer (4); a thickness ratio between the polyester imine paint layer (2), the polyamide-imide(PAI) paint layer (3) and the nanometer polyamide-imide(PAI) paint layer (4) is 70:24:6. The high efficiency energy saving motor self lubricating enamelled wire can effectively improve motor efficiency when applied to the motor.