Litz wire winding structure of wireless charging box

The utility model provides a litz wire winding structure of a wireless charging box, which enables the winding of a litz coil to be reliable and convenient and improves the product assembly efficiency. The cover plate comprises an upper cover plate body and peripheral side plates, the corresponding side plates are arranged on the periphery of the upper cover plate body, and the adjacent side plates are connected to form an overall outer contour edge with a height; and a Litz coil; a first wire inlet and a second wire outlet which are arranged at intervals are formed in the edge side of one corner of the upper cover plate, a plurality of spiral lower protruding rings are arranged on the lower surface area of the upper cover plate, a cavity used for clamping a litz coil is formed between every two adjacent spiral lower protruding rings, the spiral lower protruding rings are arranged from outside to inside, and the spiral lower protruding rings are arranged in the cavity. The tail end of the innermost spiral low