A heat sink assembly includes a heat exchanging section formed by a
thermally conductive sheet folded into alternating ridges and troughs
defining generally parallel spaced fins having opposite end edges. The
folded sheet is formed into a generally cylindrical configuration whereby
the troughs form an inner segmented cylinder and the ridges form an outer
segmented cylinder generally concentric with the inner cylinder. The heat
sink assembly may include a heat conductive rod dimensioned to engage the
troughs of the thermally conductive sheet. The ridges of the thermally
conductive sheet may also contain apertures to allow air to fully
circulate through the fins. The heat sink assembly may also include a fan
and a thermally conductive base plate.
