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Heat Sink with a Helical Heat Pipe

IP.com Disclosure Number: IPCOM000101767D
Publication Date: 2005-Mar-16
Document File: 2 page(s) / 63K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a heat pipe heat sink that incorporates a helical shape where the portion of the heat pipe intersects the heat sink fins. Benefits include improving heat transfer efficiency.

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Heat Sink with a Helical Heat Pipe

Disclosed is a method for a heat pipe heat sink that incorporates a helical shape where the portion of the heat pipe intersects the heat sink fins. Benefits include improving heat transfer efficiency.

Background

Increasing power trends in electronic components requires better heat dissipation from thermal solutions. Better heat dissipation is a function of thermal conductivity through the solution and then to the surrounding air. Solid metals conduct heat very well, but as heat dissipation requirements increase, the solid metal thermal solutions become too massive (see Figure 1). The bulk cost of metals and the heavy mass of the thermal solutions has led the industry to explore other lighter or less massive solutions.

Heat pipes have emerged as an effective and established thermal solution, particularly where there is limited airflow over the heat generating components, and where space or weight constraints exist. Heat pipe heat sinks currently feature heat pipes that are perpendicular to heat sink fins; however, heat conducted from the heat pipe to the thermal solution fin is limited by the contact area between the fin and heat pipe.

General Description

The disclosed method’s heat pipe heat sink incorporates a helical shape where the portion of the heat pipe intersects the heat sink fins. The heat sink base is made from a heat-conducting material, and uses the heat sink hardware to attach it in the desired position to cool the electronic...