Low noise cooling system e.g. for microprocessor in computer, has an axial flow fan with noise damper

摘要

The axial flow fan [1] is mounted freely on a spacer [3] that is set a distance [A] of 0.1 an 10 times the rotor diameter from the heat sink [2]. The open setting of the rotor allows air to be drawn radially and axially over the heat sink surfaces. The spacer has a damping element [4] of elastic material.