초록 ▼

Three embodiments of a heat exchanger assembly for cooling an electronic device are shown respectively in FIGS. 1-2, 3 and 4 and each comprises a flange, a dome, a plurality of condensing tubes, a shroud, and a boiler plate. In the first embodiment shown in FIG. 1, the dome is semi-spherical in shap

Three embodiments of a heat exchanger assembly for cooling an electronic device are shown respectively in FIGS. 1-2, 3 and 4 and each comprises a flange, a dome, a plurality of condensing tubes, a shroud, and a boiler plate. In the first embodiment shown in FIG. 1, the dome is semi-spherical in shape and the distance measured axially along the center axis equals the distance measured laterally from or perpendicular to the center axis. In the second and third embodiments shown in FIGS. 3 and, 4, respectively, the distance measured axially along the center axis is greater than the distance measured laterally from or perpendicular to the center axis. The domes in the second and third embodiments are an ellipsoid and a semi-logarithmic body, respectively. In all embodiments, a plurality of condensing tubes aligned in fan rows and arced rows extend from the dome to distal ends to facilitate more-efficient heat transfer.

대표청구항 ▼

What is claimed is: 1. A heat exchanger assembly for cooling the electronic device comprising; a boiler plate for disposition over the electronic device, a semi-spherical dome having a center axis and disposed on said boiler plate and defining a semi-spherical boiling chamber curved axially along a

What is claimed is: 1. A heat exchanger assembly for cooling the electronic device comprising; a boiler plate for disposition over the electronic device, a semi-spherical dome having a center axis and disposed on said boiler plate and defining a semi-spherical boiling chamber curved axially along and laterally from said center axis, a refrigerant disposed in said semi-spherical boiling chamber for undergoing a liquid-to-vapor-to-condensate cycle in response to the heat generated by the electronic device, a plurality of spaced condensing tubes disposed in a plurality of fan rows and extending from said dome to distal ends, a shroud enclosing said distal ends of said condensing tubes in spaced relationship to said dome for moving air over said condensing tubes and over said dome, said shroud and said distal ends of said condensing tubes being disposed in a domed shape in spaced relationship to said semi-spherical dome. 2. An assembly as set forth in claim 1 wherein each of said condensing tubes is in a fan plane containing and extending radially from said center axis. 3. An assembly as set forth in claim 2 including a plurality of said condensing tubes in each of said fan rows and spaced from one another in the associated fan plane. 4. An assembly as set forth in claim 3 wherein said condensing tubes in each fan row diverge from one another in a fan-like fashion. 5. An assembly as set forth in claim 4 wherein said distal ends of said condensing tubes in each of said fan rows are aligned from one to another along curved paths extending in opposite directions from a transverse plane extending perpendicularly through said fan planes and perpendicularly through said center axis. 6. An assembly as set forth in claim 5 wherein adjacent fan rows and said fan planes converge toward one another in opposite directions from said transverse plane. 7. An assembly as set forth in claim 5 wherein said condensing tubes in adjacent fan rows are aligned in arced rows extending concentrically about said center axis. 8. An assembly as set forth in claim 7 wherein said condensing tubes in said arced rows adjacent said transverse plane extend generally parallel to said transverse plane and said condensing tubes in said arced rows adjacent said center axis extend generally across said transverse plane whereby said arced rows gradually change from a fan-like radial disposition of said condensing tubes in said arced row adjacent said transverse plane to a conical disposition of said condensing tubes in said arced row about said center axis adjacent said center axis. 9. An assembly as set forth in claim 8 wherein the spacing between next adjacent condensing tubes in each arched row decreases from arched row to arched row from said transverse plane to said center axis whereby said arced rows adjacent said center axis are more tightly packed with said condensing tubes than said arced rows adjacent said transverse plane. 10. An assembly as set forth in claim 1 including a flange disposed on said boiler plate and surrounding said dome. 11. A heat exchanger assembly for cooling comprising; a boiler plate, a semi-spherical dome having a center axis and disposed on said boiler plate and defining a semi-spherical chamber curved axially along and laterally from said center axis, a plurality of spaced condensing tubes extending from said dome to distal ends, a plurality of said condensing tubes in each of a plurality of fan rows, each of said fan rows being in a fan plane extending radially from said center axis, said condensing tubes being spaced from one another in the associated fan plane, a shroud enclosing said distal ends of said condensing tubes in spaced relationship to said dome for moving air over said condensing tubes and over said dome, said shroud and said distal ends of said condensing tubes being disposed in a domed shape in spaced relationship to said dome.