Radiating and fixing device of high-power radiator

The utility model relates to the technical field of radiators, in particular to a high-power radiator radiating and fixing device which comprises a shell and a heating element, the shell comprises a shell body and a shell cover, the shell cover is arranged at the top end of the shell body, a working groove is formed in the top end of the shell body, a working block is arranged at the bottom end of the shell cover, and the bottom end of the working block extends into the working groove. Limiting devices are arranged on the left side wall and the right side wall of the working block, positioning blocks are slidably arranged on the left side wall and the right side wall of the working groove respectively, positioning grooves are formed in the bottom ends of the positioning blocks, fixing grooves are formed in the positions, corresponding to the positioning grooves, of the groove bottom of the working groove, and heating elements are arranged between the positioning grooves and the fixing grooves. A supporting gr