Wireless charging coil winding method and corresponding structure

The invention discloses a wireless charging coil winding method, which can adapt to different current and voltage outputs through a reasonable winding method, and reduces the manufacturing cost. The structure comprises a coil panel, the area of the coil panel is provided with N turns of Litz wire guide flanges to form N groups of ramps, the N groups of ramps are arranged in a manner of shrinking from inside to outside in the radial direction, the central area of the coil panel is a vacant plane, the N groups of ramps are provided with notch grooves corresponding to angle areas of Litz wire entrances and exits, and the notch grooves are used for winding arrangement of Litz wires in a manner of shrinking inwards or expanding outwards; and a litz wire; wherein the height of the ramps is not smaller than that of the two layers of Litz lines which are arranged in a stacked mode; the number of litz wires of the charging coil needing to be laid, the number of winding turns of each wire and the number of winding laye