Cooling fan for a computer or other electronic system attached to the outside of the computer or system housing

摘要

The cooling fan is attached to a computer housing (10) in which a circuit board (20) is mounted. The wall of the housing opposite the circuit board has an opening (12) which is greater than half the surface of the circuit board and to which the fan is fastened. The operating heat of all the electronic components on the circuit board is dispersed by the air stream of the fan (30) or the cold ambient air can be fed into the housing.