Heat exchange – With retainer for removable article – Electrical component
Patent
1996-11-08
1998-08-18
Leo, Leonard R.
Heat exchange
With retainer for removable article
Electrical component
165185, 174 163, 257722, 361704, 361707, F28F 700
Patent
active
057946841
ABSTRACT:
A heat sink is constructed from a plurality of fin elements each of which has upper and lower heat dissipating surfaces. The upper surface is provided with a centrally located nesting recess while the lower surface is provided with a centrally located nesting shoulder which is complementary in shape to the recess. The fin elements are assembled in interfitting stacked relation such that the nesting shoulder of one fin element is received in nested relation within the recess of an adjacent fin element and further assembled such that the outer side and bottom walls of the shoulder are in intimate facing thermal contact with the inner side and bottom walls of the recess. The side walls of the shoulder and recess of consecutively nested fin elements are consecutively longer in length, i.e. the recess is deeper and shoulder higher, so that the heat dissipating surfaces of the adjacent fin elements are maintained in spaced relation. The nesting formations of the fin elements are preferably formed by stamping the center portion of the fin elements to produce a recess on the stamped side while also forming the complementary shoulder on the opposing side. During assembly of the various fin elements, the nested formations are bonded together using a bonding technique appropriate to the particular metal used for the fin elements. The heat dissipating surfaces of the fin elements are also preferably provided with embossed surface formations to increase the effective heat dissipating surface area of the fin elements.
REFERENCES:
patent: 2806187 (1957-09-01), Boyer et al.
patent: 4107934 (1978-08-01), Beitner
patent: 5224538 (1993-07-01), Jacoby
patent: 5535816 (1996-07-01), Ishida
patent: 5654587 (1997-08-01), Schneider et al.
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