Design method of PCB winding end portion optimization

The invention discloses a design method of end portion optimization for a PCB winding. The design method reasonably utilizes the space of the inner and outer end portions of the PCB winding, extends and widens an inner end portion connection conductor in the winding inward on the premise of guarantee that the current density of an effective conductor of the winding is in a reasonable range when adisc type electric machine is running normally, and each inner end portion conductor can be designed in various shapes while reasonable layout of the space of the inner end portion is guaranteed. Forthe outer end portion connection conductor of the winding, as the heat radiation effect of the outer end portion connection conductor is better than the heat radiation effect of the inner end portionconnection conductor, the current density of the outer end portion connection conductor can be properly improved, so as to reasonably reduce the line width of the outer end portion connection conductor. Therefore, the effective