US 2007/0163755 A1 · Flat plate heat transfer device and method for manufacturing the same

Abstract

A flat plate heat transfer device contacted with heat source and heat-emitting unit at both end transfers heat generated at the heat source to the heat-emitting unit horizontally. The device includes a thermally-conductive flat case containing a working fluid evaporated with absorbing heat from the heat source and condensed with emitting heat to the heat-emitting unit; and a mesh aggregate installed in the case so that coarse and fine meshes in which wires are woven to be alternately crossed up/down are vertically laminated in contact. The coarse mesh gives main-directional and sub-directional vapor dispersion channels with different sectional areas at each crossing point of the mesh wires for vapor to flow therethrough. The main-directional vapor dispersion channel with relatively larger sectional area is parallel to heat transfer direction. The fine mesh gives liquid flow channels along running direction of the mesh wire from each crossing point of the mesh wires.

Claims33

Dependent claims

A flat plate heat transfer device, one end of which is contacted with:

a heat source and the other end of which is contacted with a heat emitting unit, the device transferring heat generated at the heat source to the heat emitting unit in a horizontal direction, the device comprising:
a thermally-conductive flat case containing a working fluid that is evaporated with absorbing heat from the heat source and condensed with emitting heat to the heat emitting unit;
and
a mesh aggregate installed in the case and configured so that coarse mesh and fine mesh in which wires are woven to be alternately crossed up and down are vertically laminated with being contacted with each other,
wherein the coarse mesh provides main-directional and sub-directional vapor dispersion channels with different sectional areas at each crossing point of mesh wires so that vapor evaporated from the working fluid is capable of flowing therethrough, the main-directional vapor dispersion channel with a relatively larger sectional area being parallel to a heat transfer direction,
wherein the fine mesh provides liquid flow channels along a surface of the mesh wires.

3 more elements

A method for manufacturing a flat plate heat transfer device, which includes a thermal-conductive flat case and a mesh aggregate mounted in the flat case, and which transfers heat in a horizontal direction with the use of a circulating mechanism of a working fluid by means of the mesh aggregate, the method comprising:

(a) forming upper and lower plates of the flat case, respectively;
(b) preparing a mesh aggregate with a structure that coarse mesh, in which wires are woven to be alternately crossed up and down, for giving vapor dispersion channels and fine mesh, in which wires are woven to be alternately crossed up and down, for giving liquid flow channels are laminated to be vertically opposite to each other, the coarse mesh having main-directional and sub-directional vapor dispersion channels with different sectional areas at each crossing point of mesh wires so that vapor evaporated from the working fluid is capable of flowing therethrough;
(c) inserting the mesh aggregate between the upper and lower plates, and adjusting a direction of the mesh aggregate so that the main-directional vapor dispersion channels of the coarse mesh are parallel to a heat transfer direction;
(d) forming a flat case by uniting the upper and lower plates with leaving a working fluid injection hole;
(e) decompressing an inside of the united case into a vacuum through the working fluid injection hole and then injecting a working fluid therethrough;
and
(f) sealing the flat case with the working fluid injected therein.

4 more elements

Dependencies are inferred from the claim text.

Flat plate heat transfer device and method for manufacturing the same

Life of this patent

Flat plate heat transfer device and method for manufacturing the same

Life of this patent

Abstract

Claims33