AIR COOLING UNIT

An air cooling unit disclosed in the present specification includes an electrical apparatus, a duct having an outlet for blowing air along a surface of the electrical apparatus, a temperature sensor disposed in the electrical apparatus, and a controller configured to limit operation of the electrical apparatus when a temperature detected by the temperature sensor exceeds a threshold temperature. The inner surface of the air outlet has thereon a projecting portion. The projecting portion and the temperature sensor are located on a same straight line parallel to an air blowing direction at the air outlet when the projecting portion and the temperature sensor are viewed along a direction perpendicular to the surface of the electrical apparatus.