▎ 摘　　要

NOVELTY - The card has a motor main body provided with a machine shell and the stator armature. A hairpin winding is composed of a certain number of a hairpin coil (5). The hairpin coil is formed by welding a single hairpin winding at a welding point. The single hairpin winding is provided with an inner layer and an outer layer. An inner wall of the machine shell is placed with an electronic iron core (9). An inner part of the machine shell is provided with a cooling liquid cavity (10). An outer surface of the hairpin shaped coil is provided with an insulating layer (15). The insulating layer is provided with an insulating paint (16) and an insulating film (17). USE - Permanent magnet synchronous card sending motor winding for high torque density vehicle, stator and motor used as driving system of new energy automobile, for improving power performance of vehicle, economical efficiency, driving motor continuously towards direction of high torque density. ADVANTAGE - The forming operation of the stator is simpler because of high conductivity of outer layer copper-graphene alloy and high thermal conductive of inner layer graphene-copper composite radiating film, the winding copper consumption is low. The end winding is transmitted to the cooling liquid heat transfer heat resistance is low, which can improve the torque density and current density of the motor, and can prolong the working time of the peak torque. The use of the inner layer reduces the use amount of the insulating paint, accelerating the end heat power consumption of the armature through the iron core middle part to transfer the coolant, which greatly reduces the temperature rise of motor main body. The inner layer has good flexibility, easy processing and installation and use, and high material reliability and no aging problem. DESCRIPTION OF DRAWING(S) - Barrette coil (5) Electronic iron core (9) Cooling liquid cavity (10) Insulating layer (15) Insulating paint (16) Insulating film (17)