Electronic equipment (10) has multiple cooling fans (15) for sending air to a heat sink (30). The multiple cooling fans (15) generate airflow (Fh) passing through the heat sink (30) from a first side (H1) to a second side (H2) thereof. The heat sink (30) is arranged obliquely to a crosswise direction and a longitudinal direction of the electronic equipment (10). A sheathing member (40) has an air inlet opening (41i) formed obliquely to the crosswise and longitudinal directions along the first side (H1) of the heat sink (30).