Patent ID: 7556086
Filing Date: 2009-07-07
Classification: F28D,F28F,H01L

Abstract:
1. A thermosyphon for enhancing cooling of electronic systems, the thermosyphon receiving heat from a heat-dissipating component and comprising: a central evaporator in contact with the heat-dissipating component, wherein the central evaporator comprises: a condenser in fluid communication with and extending around the periphery of the evaporator, wherein the condenser comprises: a liquid coolant partially filling the condenser and substantially filling the evaporator; and means for cooling the condenser, wherein at all orientations the evaporator is substantially full of liquid coolant, wherein the planar shapes of the evaporator and condenser peripheries are substantially rectangular, and wherein the cross-sectional shape of the condenser along an edge of the evaporator and perpendicular to the central plane is generally rectangular, the condenser is generally symmetric about the central plane, and the dimensions of the evaporator and condenser approximately satisfy the following relationship, where H B is the height of the condenser, H E is the distance between the interior surface of the second plate and the interior surface of the first plate, L B is the distance that the condenser extends from the periphery of the evaporator, perpendicular to the respective edge of the evaporator, L E is the length of the evaporator along one edge, and W E is the length of the evaporator along an edge perpendicular to the edge having length L E :