Heat radiator

The utility model discloses a heat radiator, which comprises a radiation fin composed of a base plate and fins and a fan installed on the upper end surface of the radiation fin. The upper end surface of the radiation fin is an inclined surface with an included angle of 10-45 DEG with the base plate. The upper end surface of the radiation fin is designed to be inclined, so as to remarkably optimize the air cooling channel of the heat radiator. The utility model has the advantages that even though the distance between a cabinet face plate and the heat radiator is very short, the fan installed in an inclining manner can reduce air resistance, ensure enough cooling air entering the interior of the radiation fin and avoid reformation of circulation of hot air. Experiments prove that the heat radiation power of the heat radiator can reach 110 W, which can meet the heat radiation requirement of the prior CPU.