Heat sink for hand held equipment

A hand held equipment comprising:

• body defining an outer surface and a heat source within a cavity defined by the body;
• and
• a heat sink forming a portion of the outer surface of the body and positioned in close proximity to the heat source so as to conduct heat away from the heat source, the heat sink further comprising:
• a base having a lower surface and an upper surface opposite the lower surface, the lower surface being in close proximity to the heat source;
• a plurality of fins having a proximal end meeting the upper surface of the base, and a distal end extending away from the base, each of the plurality of fins defining a cross-sectional area and terminating at an outward surface;
• and
• a coating having low thermal conductivity extending over at least a portion of the outward surface of the plurality of fins;
• wherein the base and the plurality of fins are formed from an aluminum alloy;
• and
• wherein the upper surface and the plurality of fins are anodized and wherein the upper surface and the plurality of fins have a chemical film applied thereto.

A heat sink comprising:

• a base having a lower surface and an upper surface opposite the lower surface, the lower surface structurally configured to be placed in close proximity to a heat source;
• a plurality of fins having a proximal end meeting the upper surface of the base, and a distal end extending away from the base, each of the plurality of fins defining a cross-sectional area and terminating at an outward surface;
• and
• a coating having low thermal conductivity extending over at least a portion of the outward surface of the plurality of fins;
• wherein the plurality of fins are elongated fins defining a first side and a second side opposite the first side;
• wherein the plurality of elongated fins are spaced apart from each other so as to be substantially parallel to each other and substantially perpendicular to the upper surface of the base;
• and
• wherein the outward surface of the plurality of fins define a hemispherical configuration.

A heat sink comprising:

• a base having a lower surface and an upper surface opposite the lower surface, the lower surface structurally configured to be placed in close proximity to a heat source;
• a plurality of fins having a proximal end meeting the upper surface of the base, and a distal end extending away from the base, each of the plurality of fins defining a cross-sectional area and terminating at an outward surface;
• and
• a coating having low thermal conductivity extending over at least a portion of the outward surface of the plurality of fins;
• wherein the base and the plurality of fins are formed from an aluminum alloy;
• and
• wherein the upper surface and the plurality of fins are one of anodized or otherwise coated with an anti-oxidation coating and wherein the upper surface and the plurality of fins have a chemical film applied thereto.