Compact thermosiphon with enhanced condenser for electronics cooling
First Claim
1. A heat sink assembly for cooling an electronic device, said heat sink assembly comprising:
- a fan housed in a shroud, said fan including a hub having a diameter “
H” and
fan blades extending therefrom for causing an axially directed airflow through said shroud upon rotation of said fan blades; and
a thermosiphon comprising an evaporator defining an evaporating chamber containing a working fluid therein and a condenser mounted thereabove, said thermosiphon positioned at one end of said shroud such that said fan is aligned with said condenser for directing said axial airflow therethrough;
wherein;
said condenser including a base having an upper surface and having a plurality of fins extending substantially upwardly from said upper surface and further including a plurality of tubes forming a tube grouping, each said tube having an opening in fluid communication with said evaporator and for receiving and condensing vapor of said working fluid from said evaporator, said tubes being axially aligned with said airflow and laterally positioned such that a lateral width of said tube grouping is approximately equal to a width of said fan hub and substantially in lateral alignment therewith.
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Accused Products
Abstract
A heat sink assembly for cooling an electronic device comprises a fan housed in a shroud, the fan including a hub and fan blades extending therefrom for causing an axially directed airflow through the shroud upon rotation of the fan blades. A thermosiphon comprises an evaporator defining an evaporating chamber containing a working fluid therein and further including a condenser mounted thereabove. The thermosiphon is positioned at one end of the shroud such that the fan is aligned with the condenser for directing the axial airflow therethrough. The condenser includes a base having an upper surface and a plurality of fins extending substantially upwardly from the upper surface. The condenser also includes a plurality of tubes forming a tube grouping. Each tube having an opening in fluid communication with the evaporator and for receiving and condensing vapor of the working fluid received from the evaporator. The tubes are axially aligned with the airflow and are laterally positioned such that a lateral width of the tube grouping is approximately equal to a width of the hub and substantially in lateral alignment therewith.
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Citations
44 Claims
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1. A heat sink assembly for cooling an electronic device, said heat sink assembly comprising:
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a fan housed in a shroud, said fan including a hub having a diameter “
H” and
fan blades extending therefrom for causing an axially directed airflow through said shroud upon rotation of said fan blades; and
a thermosiphon comprising an evaporator defining an evaporating chamber containing a working fluid therein and a condenser mounted thereabove, said thermosiphon positioned at one end of said shroud such that said fan is aligned with said condenser for directing said axial airflow therethrough;
wherein;
said condenser including a base having an upper surface and having a plurality of fins extending substantially upwardly from said upper surface and further including a plurality of tubes forming a tube grouping, each said tube having an opening in fluid communication with said evaporator and for receiving and condensing vapor of said working fluid from said evaporator, said tubes being axially aligned with said airflow and laterally positioned such that a lateral width of said tube grouping is approximately equal to a width of said fan hub and substantially in lateral alignment therewith. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A condenser for a heat sink assembly for cooling an electronic device, said condenser comprising:
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a base having an upper housing affixed thereto, said upper housing having open ends, and further having a plurality of fins extending substantially upwardly from an upper surface of said base and within said upper housing;
a fan mounted at one of said open ends, said fan including a hub having a diameter “
H” and
fan blades extending therefrom for causing an axially directed airflow through said housing upon rotation of said fan blades;
a plurality of tubes within said upper housing for transmitting therethrough a vapor of a working fluid, said tubes defining a tube grouping, said tubes being arranged in axial alignment with said fan hub and laterally positioned such that a lateral width of said tube grouping is approximately equal to a width of said hub and substantially in lateral alignment therewith. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification