| CPC F28F 3/086 (2013.01) [F28F 9/001 (2013.01); F28F 2210/08 (2013.01)] | 10 Claims |
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1. A heat sink comprising:
a casing including a chamber filled with a working fluid; and
at least one metal net disposed in the chamber, wherein the at least one metal net includes a plurality of first metal wires and a plurality of second metal wires, wherein the plurality of first metal wires and the plurality of second metal wires interlace with each other and are woven to form a plurality of holes, wherein each of the plurality of holes is surrounded and defined by two adjacent first metal wires and two adjacent second metal wires, and wherein the plurality of holes have at least two different sizes;
wherein at least two adjacent first metal wires and/or at least two adjacent second metal wires form a group, such that the plurality of first metal wires and/or the plurality of second metal wires form plural groups of first metal wires and/or plural groups of second metal wires, wherein two adjacent first metal wires of each group and/or two adjacent second metal wires of each group have a first spacing therebetween, wherein two adjacent groups of first metal wires and/or two adjacent groups of second metal wires have a second spacing therebetween, and wherein the second spacing is greater than the first spacing; and
wherein the plural groups of first metal wires and the plural groups of second metal wires interlace with each other and are woven to include a plurality of overlapped portions, and wherein the plurality of overlapped portions is pressed or rolled to adjust shapes, such that projections of holes surrounded by the plurality of overlapped portions present deformed holes having irregular shapes and having different sizes.
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