Waterproof electromagnetic coil

The utility model discloses a waterproof electromagnetic coil which comprises a framework, a shell is wrapped on the framework, a support and a coil are arranged between the framework and the shell, the coil is wound on the framework, flanges are respectively arranged at two ends of the framework in a protruding mode, the flanges extend along the circumferential direction of the framework, and theflanges are connected with the framework in a protruding mode. A plurality of first annular grooves are formed in the end face of the flange, second annular grooves are formed in the side face of theflange, the shells are filled in the first annular grooves and the second annular grooves, and the surface roughness of the first annular grooves and the surface roughness of the second annular grooves are both larger than Ra25. The waterproof structure has the advantages of being simple in structure, simple in process, low in cost and good in waterproof effect. 本实用新型公开的一种防水电磁线圈，包括骨架，所述骨架上包覆有外壳，所述骨架和所述外壳之间设有支架以及线圈，所述线圈绕设于