JPS6383587A - Flat board type heat pipe - Google Patents

Abstract

PURPOSE:To permit heat transfer between an upper plate and a lower plate of a flat board type heat pipe, by a method wherein operating liquid is permitted to move freely by capillary effect through narrow pipelines between partitioning plates, which are constituted by partitioning the hollow flat board type space between the upper plate and the lower plate by the partitioning plates. CONSTITUTION:A plurality of partitioning plates 3 are provided in a sealed hollow space 2, pinched by both flat plates 1a, 1b of a flat board type heat pipe, orthogonally to the flat plates 1a, 1b with a narrow gap between each others, whereby the sealed hollow space 2 is divided into a multitude of channels 6. The partitioning plates 3 are provided with holes 4, 4a, connecting between the channels 6 while predetermined operating fluid 5 is sealed in the hollow space 2. The channels 6 are formed by predetermined narrow gaps, therefore, the operating fluid 5 may be movable into the direction of the channels 6 by capillary effect. When holes 4a, smaller than the holes 4, are provided on parts covered by the operating fluid 5, the movement of the operating fluid 5 between neighboring channels 6 may be effected.

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION (Field of Industrial Application) The present invention relates to a flat heat pipe. (Prior art) In the conventional flat plate heat pipe, for example, "HE A
T P I P E S J P, D, DUNN, D.
As shown in the example in co-authored by A. REAY, 2nd edition, pages 197 to 198, the structure focuses mainly on the heat transport force in the width direction of the flat plate, and the flow rate of one working fluid is Weaks, which are roads, were installed alongside the transport of liquid in the width direction. Therefore, if there is a large heat flux in the thickness direction of the flat plate, that is, if there is a heat flow where one side of the flat plate is a heating surface and the other side is a cooling surface. There was a possibility that the heating surface would dry out and become unusable. (Problems to be Solved by the Invention) An object of the present invention is to provide a flat heat pipe that has a large heat transport capacity not only in the width direction but also in the thickness direction. [Structure of the invention] (Means for solving the problem) A flat heat pipe is operated in a narrow conduit between the partition plates, which is constructed by partitioning a flat hollow space between the upper plate and the lower plate with partition plates. This is a heat pipe that allows liquid to move freely through capillary action, allowing heat transfer between the upper and lower plates of a flat heat pipe. Working fluid can also move in a direction perpendicular to the surface of the partition plate. There are holes in the partition plate to ensure this. (Function) Since holes are provided in the partition plates, while allowing the movement of the working fluid in the plane direction of the heat pipe, the holes extend in the direction along the plane of the heat pipe between the partition plates and between the opposing planes. The working liquid can also move in a direction perpendicular to the plane due to the narrow conduit connecting the two, making it possible to transfer heat from one side to the other. (Example) An example of the present invention will be described with reference to FIG. Both flat plates 1a of the flat plate heat pipe. In the sealed hollow space 2 sandwiched between 1b and 1b, there is a flat plate la.
, lb, a plurality of partition plates 3 are provided with narrow gaps between them, and the sealed hollow space 2 is divided into a large number of narrow channels 6. Further, the partition plate 3 is provided with holes 4, 4a that connect the channels 6, and the hollow space 2 is filled with a predetermined working fluid 5. FIG. 2 shows how a working fluid 5 is held in the channel 6. A working fluid 5 is held in the channel 6.
As shown in FIG. 2, the working fluid 5 is retained because the channel 6 is formed by a predetermined narrow gap.
Needless to say, can move freely in the direction of channel 6 due to the capillary effect.
b to the other flat plate 1a along the part of the partition plate 3 where the holes 4 are not provided. Furthermore, if a hole 4a smaller than the hole 4 is provided in the portion covered with the working fluid 5, the working fluid 5 can be moved even between adjacent channels 6. Therefore, this type of flat plate heat pipe has a large heat transfer capacity not only in the width direction of the flat plate but also in the thickness direction. It goes without saying that the partition plates may be arranged in any manner, for example, in concentric circles. [Effects of the Invention] By forming the heat pipe in this way, it is possible to realize a flat heat pipe that has a sufficiently large heat transport force not only in the width direction but also in the thickness direction without drying out the heating surface. be.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing an embodiment of the present invention, and FIG. 2 is a partially sectional view showing an enlarged main part of FIG. 1. la, lb...Flat plate 2...Hollow space 3...Partition plate 4, 4a...hole 5...Working fluid 6...Channel agent Patent attorney Noriyuki Chika Yudo Kikuo Takehana Figure 1

Claims (1)

[Claims] In a flat heat pipe in which a working fluid is sealed in a hollow space provided in a flat plate shape, a partition plate is provided to divide the hollow space into narrow pipes, and a hole is made in the partition plate to open between the pipes. A flat plate heat pipe characterized by: