Enameled copper flat wire and vehicle-mounted driving motor

The invention relates to a high-frequency skin effect resistant enameled copper flat wire and a vehicle-mounted driving motor, the enameled copper flat wire comprises a wire core unit and a second insulating layer wrapping the outer side of the wire core unit, the wire core unit comprises a plurality of sub-wire cores arranged in a stacked mode and a first insulating layer filled among the sub-wire cores, and all the surfaces of the sub-wire cores are provided with first insulating layers. Compared with the prior art, the wire core unit is designed into a plurality of sub wire cores, the gaps are filled with the first insulating layers, and then the second insulating layers cover the outer sides, so that the skin effect caused by high-frequency current can be effectively weakened, the high-speed alternating current copper consumption of the motor is reduced, and the high-speed efficiency and the output performance of the motor are improved; therefore, the cruising ability and the high-speed cruising ability o