Patent ID: 8118081

Claim:
A heat dissipation device comprising: a fin assembly, the fin assembly comprising an interlocked plurality of metal fins, each metal fin including; a main body provided with at least one locking tab, the at least one locking tab comprising: a connecting end connected with the main body and a free end remote from the main body; a first locking unit located adjacent to the connecting end of the at least one locking tab; a second locking unit located adjacent to the free end of the at least one locking tab; and a tongue between the first and the second locking units; and a void defined in the main body and disposed adjacent to the at least one locking tab; wherein the at least one locking tab of each metal fin extends through the void of an adjacent metal fin, the second locking unit of the at least one locking tab of the each metal fin engages the first locking unit of the at least one locking tab of the adjacent metal fin to interlock the each metal fin and the adjacent metal fin, and the tongue of the at least one locking tab of the each metal fin abuts the adjacent metal fin.