Advanced air cooled heat sink
AssigneeDelphi Technologies, Inc.
InventorsShrikant Mukund Joshi, Mohinder Singh Bhatti
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Abstract
A heat sink for cooling electrical or electronic devices comprises a base 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 includes 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. Each planar portion has a plurality of louvers formed therein wherein the louvers are substantially parallel one to the other and perpendicular to the base plate.
Claims20
A heat sink for cooling electrical or electronic devices, said heat sink comprising:
- a base 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, each said planar portion having a plurality of louvers formed therein, said louvers being substantially parallel one to the other and perpendicular to said base plate.
A method of fabricating a heat sink for electrical or electronic devices, said method comprising the steps of:
- providing a base plate having a top surface and a bottom surface;
- forming a folded fin from a strip of heat conductive material wherein the fin has a plurality of alternating curved portions and planar portions;
- forming a plurality of louvers in each of the planar portions such that the louvers are aligned substantially parallel to the curved portions;
- and
- affixing one edge of the folded fin to the base plate such that the curved portions and planar portions are substantially perpendicular to the top surface of the base plate.
Dependencies are inferred from the claim text.