Thermosiphon systems for electronic devices
AssigneeGoogle Inc.
InventorsJeremy Rice, Jeffrey S. Spaulding, Huan D. Nguyen
Life of this patent
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Abstract
A thermosiphon system includes a condenser, an evaporator, and a condensate line fluidically coupling the condenser to the evaporator. The condensate line can be a tube with parallel passages can be used to carry the liquid condensate from the condenser to the evaporator and to carry the vapor from the evaporator to the condenser. The evaporator can be integrated into the tube. The condenser can be constructed with an angled core. The entire assembly can be constructed using a single material, e.g., aluminum, and can be brazed together in a single brazing operation.
Claims27
A thermosiphon system, comprising:
- a condenser;
- an evaporator including a chamber having a floor and a ceiling;
- and
- a condensate line fluidically coupling the condenser to the evaporator, the condensate line comprising a tube having a central passage and a pair of outer passages positioned adjacent a floor of the tube positioned on opposite lateral sides of the central passage and extending parallel to the central passage, the central passage positioned to carry a vapor phase of the working fluid from the evaporator to the condenser, the pair of outer passages positioned to carry a liquid phase of a working fluid from the condenser to the evaporator, wherein the central passage includes a first portion positioned laterally between the pair of outer passages and a pair of second portions extending vertically over the pair of outer passages, the pair of outer passages separated from the second portions by partitions extending along a length of the tube, and wherein a portion of the tube extends over the evaporator and apertures through the ceiling of the evaporator connect each of the pair of outer passages to the chamber of the evaporator.
8-9. (canceled)
The thermosiphon system of claim 8, wherein the evaporator comprises a plurality of fins projecting upwardly from the evaporator pan.
A thermosiphon system, comprising:
- a condenser;
- an evaporator including an evaporator pan, the evaporating pan including a chamber having a floor and a ceiling and a plurality of projections extending upwardly from the floor of the evaporator pan;
- and
- a condensate line fluidically coupling the condenser to the evaporator, wherein the condensate line includes a tube having a floor and a portion that extends over the evaporator and is separated from the chamber by a wall with a top surface of the wall providing the floor of the condensate line and a bottom surface of the wall providing the ceiling of the chamber such that the floor of the chamber is recessed relative to the floor of the condensate line, and wherein the plurality of projections extending upwardly from the evaporator pan through an aperture in the wall such that tops of the fins are positioned above the floor of the condensate line.
(canceled)
21-28. (canceled)
A method of assembling a thermosiphon system, comprising:
- providing a condenser, an evaporator, and a condensate line;
- and
- simultaneously brazing the condenser, the evaporator, and the condensate line to form a unitary body in a single brazing process.
Dependencies are inferred from the claim text.