Patent ID: 7817424

Claim:
A heat sink assembly comprising: an air duct defining an air guiding channel therein; a heat sink configured to contact a heat source to dissipate heat from the heat source, the heat sink comprising a plurality of heat pipes contacting the air duct to transfer heat to the air duct, wherein the heat sink is placed on a first side of the air guiding channel; and a fan configured to force air to flow through the air guiding channel to the heat sink to dissipate heat on the air duct and the heat sink, wherein the fan is placed on a second side of the air guiding channel to communicate the fan with the heat sink via the air duct; a connecting piece connecting the heat sink and the air duct together, wherein the connecting piece is inclined, and comprises a first end formed on a low end of the connecting piece, and a second end formed on a high end of the connecting piece; the first end is secured on the heat sink; the second end is secured on the air duct, wherein each of the first and second ends of the connecting piece comprises a plurality of inserting posts; the heat sink defines a plurality of first securing holes for receiving the inserting posts of the first end; the air duct defines a plurality of second securing holes for receiving the inserting posts of the second end.