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Computer cooling fan

A computer system has a computer processor which generates heat when being operated. Computer systems typically use air cooling techniques to draw heat away from critical components in the computer system. Air cooling is used on computers ranging from personal computers and laptops to minicomputer and mainframe systems. Air cooling systems typically use fans to move air across electrical components in the computer system. The fan typically blows cool air into ambient spaces around electronic components. The electronic components dissipate heat into the ambient air. Fans of various types are used to force air out of the back of the enclosure or to force fresh air into the enclosure. In either case, such fans induce internal circulation and promote convective heat transfer from heat generating components. A computer fan assembly for a notebook computer or a laptop usually has inlet and outlet ports which are positioned relative to one another so that air enters a housing of the computer cooling fan assembly in a downwardly direction and exits the housing in a sideways direction. A fan's ability to cool a computer is a function of the volume and speed of the airflow it is able to create. Faster fans generally provide greater cooling ability than slower fans. Computer cooling fans, however, also make noise and the noise level is a function of the speed of the fan; faster are noisier than slower fans.

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