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US 12,729,918 B2Granted
Wick structure for thin heatpipes
AssigneeDell Products L.P.
InventorsQinghong He, Travis C. North
Life of this patent
Estimating the term…
Abstract
In one or more embodiments, a thin heatpipe may comprise a tube with a wick formed as a plurality of longitudinal ridges, each ridge in contact with a first portion of an inner surface corresponding to a first side of the tube and extending to contact a portion of the inner surface associated with an opposite side of the tube. The ridges may divide the interior of the tube into a plurality of vapor cavity areas.
Claims7
A heatpipe comprising:
- a hollow tube forming a vapor cavity, wherein the tube comprises two opposing sides;
- a wick formed in the tube, the wick comprising a plurality of ridges, each ridge formed longitudinally on an inner surface of the tube and comprising a base in contact with a first portion of the inner surface and two sides extending for contact with a second portion of the inner surface, wherein the first portion is associated with a first side of the tube and the second portion is associated with a second side of the tube opposite the first side and the plurality of ridges divides an interior of the tube into a plurality of vapor cavity areas,
- wherein each ridge comprises a triangular cross-section profile with each side of each ridge having a first linear section and a second linear section,
- wherein, for each ridge of the plurality of ridges, the second linear section of each side extends from the first linear section of the same side such that the second linear section of each side converge together at the second portion of the inner surface,
- wherein, for at least one ridge of the plurality of ridges and for at least one side of the at least one ridge, a first length of the first linear section of the side differs from a second length of the second linear section of the side, and the first linear section extends linearly at a first angle with respect to the first portion of the inner surface of the hollow tube and the second linear section extends linearly at a second angle with respect to the first linear section, the second angle differing from the first angle;
- and
- a working fluid in the plurality of vapor cavity areas.
4 more elements
A cooling system for an information handling system, the cooling system comprising:
- a heat exchanger;
- and
- a heatpipe having a first end thermally coupled to a heat-generating component of the information handling system and a second end thermally coupled to the heat exchanger, wherein the heatpipe comprises:
- a hollow tube with an inner surface, wherein the tube is flattened to form two opposing sides;
- a wick formed in the tube, the wick comprising a plurality of ridges, each ridge formed longitudinally within the tube and comprising a base in contact with a portion of the inner surface associated with a first side of the two opposing sides and each ridges extends to contact a portion of the inner surface associated with a second side of the two opposing sides, the plurality of ridges dividing an interior of the tube into a plurality of vapor cavity areas,
- wherein each ridge comprises a triangular cross-section profile with each side of each ridge having a first linear section and a second linear section,
- wherein, for each ridge of the plurality of ridges, the second linear section of each side extends from the first linear section of the same side such that the second linear section of each side converge together at the second portion of the inner surface,
- wherein, for at least one ridge of the plurality of ridges and for at least one side of the at least one ridge, a first length of the first linear section of the side differs from a second length of the second linear section of the side, and the first linear section extends linearly at a first angle with respect to the first portion of the inner surface of the hollow tube and the second linear section extends linearly at a second angle with respect to the first linear section, the second angle differing from the first angle;
- and
- a working fluid in the plurality of vapor cavity areas.
7 more elements
Dependencies are inferred from the claim text.