Embedded transformer PCB coil connecting device

An embedded transformer PCB coil connecting device relates to the field of transformers and comprises a coil, a coil holder, connecting columns and a limiting seat, the coil holder is arranged at the bottom of the coil, a plurality of groups of connecting columns are arranged on the lower surface of the coil holder at equal intervals, the bottom of the coil is connected with the connecting seat through the coil holder, an inserting groove is formed in the upper surface of the connecting seat, and the limiting seat is arranged in the inserting groove. The inserting grooves and the coil base are mutually inserted, fixing bases are arranged in the middles of the two sides of the connecting base, and limiting sliding grooves are formed in the upper surfaces of the fixing bases; the left protective plate and the right protective plate are located on the two sides of the coil respectively, meanwhile, the inserting cylinder and the inserting base are connected in an inserted mode, the left protective plate and the r