Patent ID: 7327568

Claim:
A heat sink assembly with rotatable fins, comprising: a housing, which has a first sidewall and a second sidewall opposite to the first sidewall, wherein the first sidewall has a first hole, a first sliding hole and a stop portion, and the second sidewall has a second hole and a second sliding hole; a first heat dissipating device, which is located in the housing, wherein the first heat dissipating device has at least one third hole, a first protrusion and a second protrusion, the first protrusion slides in the first sliding hole, the second protrusion slides in the second sliding hole, and the first protrusion and the second protrusion cause the first heat dissipating device to rotate between a first position and a second position; a rod, which passes through the first hole, the second hole and the third hole, wherein the first heat dissipating device rotates between the first position and the second position with the rod of being a rotating center; an elastic member, which has a first end connecting with the stop portion and a second end connecting with the first protrusion, wherein the elastic member provides an elasticity for the first protrusion to move the first heat dissipating device back to the first position; and a lever, which is pivoted on an external side of the second sidewall, wherein the lever moves with the second protrusion.