Vapor chamber with sintered grooved wick
First Claim
1. A heat pipe heat spreader comprising:
- a substantially L-shaped enclosure having an internal surface and a plurality of post projecting from said internal surface;
a working fluid disposed within said enclosure; and
a grooved wick disposed on at least a portion of said internal surface and including a plurality of individual particles having an average diameter, said grooved wick including at least two lands that are in fluid communication with one another through a particle layer disposed between said at least two lands that comprises less than about six average particle diameters.
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0 Petitions
Accused Products
Abstract
A heat pipe heat spreader is provided having a substantially L-shaped enclosure with an internal surface and a plurality of post projecting from the surface. A working fluid is disposed within the enclosure, and a grooved wick is formed on at least a portion of the internal surface. The grooved wick includes a plurality of individual particles having an average diameter, and including at least two lands that are in fluid communication with one another through a particle layer disposed between the at least two lands that comprises less than about six average particle diameters. A method for making a grooved heat pipe wick on an inside surface of a heat pipe container a layer of sintered powder between adjacent grooves that comprises no more than about six average particle diameters.
166 Citations
12 Claims
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1. A heat pipe heat spreader comprising:
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a substantially L-shaped enclosure having an internal surface and a plurality of post projecting from said internal surface;
a working fluid disposed within said enclosure; and
a grooved wick disposed on at least a portion of said internal surface and including a plurality of individual particles having an average diameter, said grooved wick including at least two lands that are in fluid communication with one another through a particle layer disposed between said at least two lands that comprises less than about six average particle diameters. - View Dependent Claims (2, 3, 4)
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5. A method for making a heat pipe wick on an inside surface of a heat pipe container, comprising the steps of:
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(a) positioning a mandrel having a grooved contour and a plurality of recesses within a portion of said container;
(b) providing a slurry of metal particles having an average particle diameter and that are suspended in a viscous binder;
(c) coating at least part of the inside surface of said container with said slurry so that said slurry conforms to said grooved contour of said mandrel and forms a layer of slurry between adjacent grooves that comprises no more than about six average particle diameters;
(d) drying said slurry to form a green wick; and
,(e) heat treating said green wick to yield a final composition of the heat pipe wick. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A heat pipe heat spreader comprising:
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a substantially L-shaped enclosure having an internal surface and a plurality of post projecting from said internal surface;
a working fluid disposed within said enclosure; and
a grooved wick disposed on at least a portion of said internal surface and including a plurality of individual particles having an average diameter, said grooved wick including at least two spaced-apart lands that are in fluid communication with one another through a particle layer disposed between said at least two spaced-apart lands that comprises less than about six average particle diameters. - View Dependent Claims (12)
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Specification