Heat pipe with embedded wick structure
First Claim
1. A wick structure comprising a substrate having a surface with a width and a length not less than the width, and a plurality of projections disposed on the surface in an arrangement so that no straight fluid communication path can be drawn across the surface that does not intersect at least one projection, wherein the surface defines an x axis disposed along the surface, and a y axis disposed along the surface at an angle to the x axis, and wherein the projections comprise:
- a) a plurality of first projections extending from the surface, where each of the first projections has a length along the x-axis and extends from a first point (x1, y1) to a second point (x1, y2);
b) a plurality of second projections extending from the surface, where each of the second projections has a length along the y-axis and extends from a first point (x1, y1) to a second point (x2, y1); and
wherein the arrangement comprises;
c) each first projection separated from every other first projection by at least one of;
a first x-distance along the direction of the x axis, and a first y distance along the direction of the y axis;
d) each second projection separated from every other second projection by at least one of;
a second x-distance along the direction of the x axis, and a second y-distance along the direction of the y axis; and
e) where every line parallel to the y axis encounters at least one second projection and every line parallel to the x axis encounters at least one first projection.
2 Assignments
0 Petitions
Accused Products
Abstract
A heat pipe has an embedded wick structure that maximizes capillary pumping capability. Heat from attached devices such as integrated circuits evaporates working fluid in the heat pipe. The vapor cools and condenses on a heat dissipation surface. The condensate collects in the wick structure, where capillary pumping returns the fluid to high heat areas.
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Citations
12 Claims
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1. A wick structure comprising a substrate having a surface with a width and a length not less than the width, and a plurality of projections disposed on the surface in an arrangement so that no straight fluid communication path can be drawn across the surface that does not intersect at least one projection, wherein the surface defines an x axis disposed along the surface, and a y axis disposed along the surface at an angle to the x axis, and wherein the projections comprise:
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a) a plurality of first projections extending from the surface, where each of the first projections has a length along the x-axis and extends from a first point (x1, y1) to a second point (x1, y2); b) a plurality of second projections extending from the surface, where each of the second projections has a length along the y-axis and extends from a first point (x1, y1) to a second point (x2, y1); and wherein the arrangement comprises; c) each first projection separated from every other first projection by at least one of;
a first x-distance along the direction of the x axis, and a first y distance along the direction of the y axis;d) each second projection separated from every other second projection by at least one of;
a second x-distance along the direction of the x axis, and a second y-distance along the direction of the y axis; ande) where every line parallel to the y axis encounters at least one second projection and every line parallel to the x axis encounters at least one first projection. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A heat pipe system for removing heat from a heat source comprising:
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a) a wick structure comprising; i) a substrate having a surface with a width and a length not less than the width and wherein the surface defines an x axis disposed along the surface, and a y axis disposed along the surface at an angle to the x axis; and ii) a plurality of projections comprising; a) plurality of x-projections from the surface, where each x-projection has a length and extends from a first point (x1, y1) to a second point (x1, y2); b) a plurality of y-projections from the surface, where each y-projection has a length and extends from a first point (x1, y1) to a second point (x2, y1); and iii) wherein the projections are disposed on the surface in an arrangement comprising; a) each x-projection separated from every other x-projection by at least a first x-distance along the direction of the x axis and at least a first y distance along the direction of the y axis; b) each y-projection separated from every other y-projection by at least a second x-distance along the direction of the x axis and at least a second y-distance along the direction of the y axis; and c) where every line parallel to the y axis encounters at least one y-projection and every line parallel to the x axis encounters at least one x-projection b) a cap sealably mounted with the wick structure substrate so that the wick structure and the cap enclose a volume, the cap further comprising a vapor channel that allows vapor to flow from one region of the cap to another region of the cap; c) a fluid within the volume. - View Dependent Claims (9, 10, 11, 12)
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Specification