Patent ID: 7120026

Claim:
A heat-dissipating device with heat conductive tubes comprising: a heat-dissipating unit having plurality of fins; each fin having a plurality of through holes; each through hole having a corresponding via hole near the through hole; a plurality of annular walls; each through hole being enclosed by a predetermined number of the annular walls; and a plurality of heat conductive tubes passing through respective through holes of the fins; a plurality of press bars; each via hole receiving a corresponding press bar; one side of each press bar being tapered; a plurality of middle walls; between the through hole and the via hole being arranged a respective middle wall; and wherein in manufacturing, the plurality of heat conductive tubes and the heat-dissipating unit with press bars are positioned to a fixture; a shaping mold serves to punch the press bars so that the press bar to press the side walls and thus the fins are tightly riveted to the heat conductive tubes.