JP3170065U - Structure of plate heat pipe - Google Patents

Abstract

The present invention provides a bendable plate heat pipe structure.
A main body 11 of a plate heat pipe 1 is formed by connecting a first plate body 111 and a second plate body 112 to face each other. The main body 11 has a circulation region 113 and a connection region 114, and two or more circulation regions 113 are connected via the connection region 114. The circulation region 113 and the connection region 114 are defined with a chamber filled with a working fluid. The circulation region 113 has a first wick structure 116, the connection region 114 has a second wick structure 117, and the plate-type heat pipe 1 is bent by being bent at the connection region 114 on a foldable mesh. Even if it is curved, the internal wick structure is not damaged.
[Selection] Figure 1

Description

The present invention relates to a structure of a plate-type heat pipe, and in particular, a wick structure having a bending characteristic is provided in a portion of the plate-type heat pipe to be bent, so that even if the plate-type heat pipe is bent, an internal wick structure is provided. The present invention relates to the structure of a plate heat pipe that does not break.

Electronic devices are required to be further thinned. Therefore, each member used in the electronic device is also required to be reduced in size. However, as the dimensions of the electronic device are reduced, the heat generated from the electronic device has become an obstacle to improving the performance of the electronic device and the system. In addition, although semiconductors constituting electronic elements continue to be reduced in size, higher performance is required.

Semiconductors increase in heat flux as their dimensions are reduced. Thereby, there exists a possibility that a semiconductor will be in an overheated state and an electronic product may fail or be damaged. Therefore, it is not sufficient to dissipate heat with respect to the total heat quantity of the electronic product.

The plate-type heat pipe is required to have different dimensions and forms depending on the place of use. In addition, the plate heat pipe needs to be curved or have a special shape according to the heat source. However, since a wick structure is provided inside the plate heat pipe, when the plate heat pipe is deformed by applying an external force, the internal wick structure is damaged. As a result, if the internal working fluid circulation efficiency is affected or severe, the working fluid effect is lost.

That is, the structure of the conventional plate heat pipe is not convenient for bending or cannot be bent. Further, in order to make the plate heat pipe into a special shape, it is necessary to sinter the wick structure after the upper lid and the lower lid are curved in advance. However, in this case, the manufacturing process becomes complicated and the cost is high.

That is, the conventional plate-type heat pipe has the following defects (1) to (3).
(1) The finished product cannot be curved.
(2) Cost is high.
(3) The manufacturing process is complicated.

JP 2001-183080 A JP 2007-64523 A

An object of the present invention is to provide a plate-type heat pipe structure that can be curved.

In order to solve the above-mentioned problem, the structure of the plate heat pipe of the present invention is formed by connecting the first plate body and the second plate body facing each other. The main body has a circulation region and a connection region. The circulation area and the connection area are connected. A chamber is defined by the circulation region and the connection region. The chamber is filled with a working fluid. The circulation region has a first wick structure, and the connection region has a second wick structure.

The structure of the plate heat pipe of the present invention can solve the disadvantage that the structure of the conventional plate heat pipe cannot be bent and deformed after molding, and increases the flexibility of the shape of the plate heat pipe. be able to.

It is a disassembled perspective view which shows the structure of the plate-type heat pipe by 1st Embodiment of this invention. It is a perspective view which shows the structure of the plate-type heat pipe by 1st Embodiment of this invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a perspective view which shows the curved state of the structure of the plate-type heat pipe by 1st Embodiment of this invention. It is a disassembled perspective view which shows the structure of the plate-type heat pipe by 2nd Embodiment of this invention. It is a perspective view which shows the structure of the plate type heat pipe by 2nd Embodiment of this invention. It is a perspective view which shows the curved state of the structure of the plate-type heat pipe by 2nd Embodiment of this invention. It is a perspective view which shows the support plate of the structure of the plate-type heat pipe by one Embodiment of this invention. It is a perspective view which shows the support plate of the structure of the plate-type heat pipe by one Embodiment of this invention. It is a perspective view which shows the support plate of the structure of the plate-type heat pipe by one Embodiment of this invention. It is a disassembled perspective view which shows the use condition of the structure of the plate-type heat pipe by 2nd Embodiment of this invention. It is a perspective view which shows the use condition of the structure of the plate type heat pipe by 2nd Embodiment of this invention.

DESCRIPTION OF EMBODIMENTS Embodiments showing the objects, features, and effects of the present invention will be described in detail with reference to the drawings.

(First embodiment)
Please refer to FIGS. FIG. 1 is an exploded perspective view illustrating a structure of a plate heat pipe according to a first embodiment of the present invention. FIG. 2 is a perspective view showing an external structure of a plate heat pipe according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a perspective view showing a curved state of the structure of the plate heat pipe according to the first embodiment of the present invention. As can be seen from FIGS. 1 to 4, the plate-type heat pipe 1 according to the first embodiment of the present invention has the above structure.

The main body 11 of the heat pipe of the present invention is formed by connecting a first plate body 111 and a second plate body 112 to face each other.

The main body 11 has a circulation region 113 and a connection region 114. The circulation area 113 and the connection area 114 are connected. Further, the chamber 115 is defined by the circulation region 113 and the connection region 114 (see FIG. 3). The working fluid 3 is filled in the chamber 115. The circulation region 113 has a first wick structure 116, and the connection region 114 has a second wick structure 117.

The first wick structure 116 is formed by connecting a powder sintered body and a plurality of support columns to each other. The support column is a powder sintered column or a copper column.

(Second Embodiment)
Please refer to FIG. FIG. 5 is an exploded perspective view illustrating a structure of a plate heat pipe according to the second embodiment of the present invention. FIG. 6 is a perspective view showing an external appearance structure of a plate heat pipe according to a second embodiment of the present invention. FIG. 7 is a perspective view showing a curved state of the structure of the plate heat pipe according to the second embodiment of the present invention. FIG. 8 is a perspective view illustrating a support plate having a plate heat pipe structure according to an embodiment of the present invention. FIG. 9 is a perspective view illustrating a support plate having a plate heat pipe structure according to an embodiment of the present invention. FIG. 10 is a perspective view illustrating a support plate having a plate heat pipe structure according to an embodiment of the present invention. As can be seen from FIG. 5 to FIG. 10, the plate-type heat pipe according to the second embodiment has the same structure as the plate-type heat pipe according to the first embodiment, and therefore the same structure is repeated here. Not to mention.
In the structure of the plate heat pipe 1 according to the second embodiment of the present invention, the circulation region 113 includes a first circulation part 1131, a second circulation part 1132, and a third circulation part 1133. In addition, the connection region 114 includes a first connection portion 1141 and a second connection portion 1142. The first connection part 1141 is provided between the first circulation part 1131 and the second circulation part 1132, and the second connection part 1142 is connected to the second circulation part 1132 and the third circulation part 1133. Between.

The first circulator 1131, the second circulator 1132, and the third circulator 1133 are provided with the first wick structure 116 described above. The first connecting portion 1141 and the second connecting portion 1142 are provided with the second wick structure 117 described above.

The first wick structure 116 is formed by connecting a powder sintered body 1161 and a plurality of support columns 1162 to each other. The support column 1162 is a powder sintered column or a copper column.

The second wick structure 117 is a support plate 1171 or a support pillar 1172 coupled to a support plate 1171.

The support plate 1171 is a mesh body (see FIG. 8), a plate member (see FIG. 9) or a corrugated plate body (see FIG. 10) having an uneven surface.

Between the 1st circulation part 1131 and the 2nd circulation part 1132, it has the 1st included angle 1134 accompanying bending (refer FIG. 7). A second included angle 1135 is similarly provided between the second circulating unit 1132 and the third circulating unit 1133. The first included angle 1134 and the second included angle 1135 are greater than 0 degrees and less than 90 degrees.

Please refer to FIG. 11 and FIG. FIG. 11 is an exploded perspective view showing a usage state of the structure of the plate heat pipe according to the second embodiment of the present invention. FIG. 12 is a perspective view illustrating a usage state of the structure of the plate heat pipe according to the second embodiment of the present invention. As shown in FIGS. 11 and 12, the main body 11 further includes a heat radiating portion 118. The heat radiating unit 118 is oppositely connected to the heat radiating unit 118. The heat radiating unit 2 is a heat radiator or a heat radiating fin. In the present embodiment, a heat radiating fin is exemplified, but the present invention is not limited to this.

DESCRIPTION OF SYMBOLS 1 Plate type heat pipe 11 Main body 111 1st board body 112 2nd board body 113 Circulation area | region 1131 1st circulation part 1132 2nd circulation part 1133 3rd circulation part 1134 1st included angle 1135 2nd Nipping angle 114 Connection region 1141 First connection portion 1142 Second connection portion 115 Chamber 116 First wick structure 1161 Powder sintered body 1162 Support column 117 Second wick structure 1171 Support plate 1172 Support column 118 Heat dissipation portion 2 Heat dissipation Unit 3 Working fluid

Claims (9)

A heat pipe body is connected between the first plate and the second plate to define a chamber that is a space filled with a working fluid between them;
The main body is divided into a circulation area composed of two or more circulation parts and a connection area, the circulation part is connected via the connection area, and the circulation area is provided with a first wick structure, and the connection area is bent. A plate-type heat pipe structure characterized in that it can be bent by providing a possible second wick structure and bending it at the connection region. The circulation region further includes a first circulation unit, a second circulation unit, and a third circulation unit, and the connection region further includes a first connection unit and a second connection unit, 1 connection portion is provided between the first circulation portion and the second circulation portion, and the second connection portion is provided between the second circulation portion and the third circulation portion. The first circulation part, the second circulation part, and the third circulation part are provided with the first wick structure, and the first connection part and the second connection part. The second wick structure is provided, and the first wick structure is formed by connecting a powder sintered body and a plurality of support columns, and the support column is a powder sintered column or a copper column. The structure of the plate-type heat pipe according to claim 1, wherein 2. The first wick structure is formed by connecting a powder sintered body and a plurality of support columns to each other, and the support column is a powder sintered column or a copper column. Plate heat pipe structure. Between the first circulation part and the second circulation part, there is a first included angle that accompanies bending, and between the second circulation part and the third circulation part similarly. 3. The plate heat according to claim 2, wherein the plate-type heat has a second included angle associated with bending, and the first included angle and the second included angle are greater than 0 degree and less than 90 degrees. The structure of the pipe. The structure of the plate type heat pipe according to claim 1, wherein the plate type heat pipe further includes a heat radiating part, and a heat radiating unit is opposedly connected to the heat radiating part. The plate heat pipe structure according to claim 5, wherein the heat radiating unit is a heat radiator or a heat radiating fin.   2. The plate heat pipe structure according to claim 1, wherein the second wick structure is a support plate or a support plate coupled to a support plate. 3. The structure of the plate-type heat pipe according to claim 1, wherein the support plate is a mesh body, a plate material having a concavo-convex body on a surface, or a corrugated plate body.   The structure of the plate-type heat pipe according to claim 7, wherein the support column is a powder sintered column.

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