Radiator of electric appliance mainboard

The utility model discloses a radiator of an electric appliance mainboard. The radiator comprises a body and a radiating coating, wherein the body comprises a base and fixing plates integrally extending outwards from the two sides of the base, the base is concave upwards and convex downwards, a faying surface is formed on the lower surface of the base, a concave position is formed on the upper surface of the base, a plurality of cooling fins integrally extend out of the bottom surface of the concave position, and a receding space is formed below each fixing plate; the heat dissipation coatingcovers at least one surface of the body. The upper part of the base is concave and the lower part of the base is convex, so that a bonding surface bonded with the heating element is formed on the lower surface of the base; concave positions are formed in the upper surface of the base, the cooling fins are located in the concave positions, receding spaces for receding the electronic devices are formed below the fixing plat