Folded fin on edge heat sink
AssigneeDelphi Technologies, Inc.
InventorBrian Leslie Barten
Life of this patent
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Abstract
A heat sink for cooling electrical or electronic devices comprises a spreader plate having a top surface and having a bottom surface for attaching to the electronic device. A folded fin formed from a strip of heat conducting material comprising alternating planar portions and curved portions has one edge abutted to the top surface such that the curved portions extend upwardly from the top surface substantially at a right angle.
Claims20
A heat sink for cooling electrical or electronic devices, said heat sink comprising:
- a spreader plate having a top surface and having a bottom surface for attaching to the electronic device;
- and
- a folded fin formed from a strip of heat conducting material, said folded fin further comprising alternating planar portions and curved portions, wherein said folded fin has one edge abutted to said top surface such that said curved portions extend upwardly from said top surface substantially at a right angle.
A method of fabricating a heat sink for electrical or electronic devices, said method comprising the steps of:
- providing a spreader plate having a top surface and a bottom surface and further having opposing sides;
- producing a plurality of slots in said top surface of the spreader plate wherein the slots extend between the opposing sides of the spreader plate;
- forming a folded fin wherein the fin has a plurality of alternating curved portions and planar portions;
- inserting the edges of the planar portions into the slots such that one planar portion of the folded fin is inserted in each slot in the spreader plate and that the curved portions extend beyond the opposing sides;
- and
- affixing the planar portions to the spreader plate.
A method of fabricating a heat sink for electrical or electronic devices, said method comprising the steps of:
- providing a spreader plate having a top surface and a bottom surface and further having opposing sides;
- forming a folded fin wherein the fin has a plurality of alternating curved portions and planar portions;
- abutting one side of the folded fin on the top surface of the spreader plate such that planar and curved portions are substantially perpendicular to the top surface;
- and
- affixing the folded fin to the spreader plate.
Dependencies are inferred from the claim text.