Patent ID: 6921328

Claim:
A cooling apparatus for electrical equipment, comprising: a heat sink including a gate-shaped frame having a flat section and side sections located respectively on both sides of said flat section, fins formed on said frame, and a fan guard mounting hole formed in said side section of said frame; a cooling fan having an engaging groove in each side section of said cooling fan; and a gate-shaped fan guard including a fan guard body and side plates located respectively on both sides of said fan guard body, wherein said fan guard body includes a grille section, said side plates including a shroud section at the rear end portion of each side plate, said side plates being provided with a fan mounting/engaging protrusion for clamping and engaging said cooling fan, on the inner surface of said side plate, said side plates including a protrusion supporting section having an engaging protrusion for mounting said fan guard to said heat sink, in the outer surface of said side plate.