TW202140984A - Vapor chamber having carbon fiber composite - Google Patents

Abstract

The present invention relates to a vapor chamber having a carbon fiber composite, comprising bottom and top cover plates made of carbon fiber materials, at least one capillary-structured plate of metal heat conductive materials and a plurality of pillars. The bottom and top cover plates can be coupled together to create a completely sealed chamber. The at least one capillary-structured plate is disposed within the chamber, and the plurality of pillars pass through the at least one capillary-structured plate to prop against the bottom and top cover plates respectively. The chamber enables to be filled with a working liquid. As thermal energy is transferred from the bottom cover plate into the chamber, the working liquid adjacently surrounding a heat source may swiftly absorb heat to generate vapor, remove a large amount of thermal energy and further allow the vapor to be swiftly condensed into a liquid to release the thermal energy due to the heat potential of the vapor, as the vapor spreads from a high temperature zone to a low temperature zone. In this way, the condensed working liquid flows back to the heat source via the at least one capillary-structured plate so as to fully perform a dual-phase circle of heat transfer. Particularly speaking, with the bottom and top cover plates made of carbon fiber materials having properties of good heat conductivity and chemical stability, the vapor chamber of the present invention enables to improve the issue of insufficient corrosion resistance of a conventional metal vapor chamber and be more applicable in either 5G communication devices or harsh environments, e.g. labs where strong acids are possibly used, ocean, etc., in addition to its efficiency of heat dissipation much more similar to that of the conventional metal vapor chamber.

Description

Temperature equalizing plate with carbon fiber composite material

This series of inventions are related to an even temperature plate with a carbon fiber composite material, especially a temperature plate that has good thermal conductivity and corrosion resistance, and can be used in 5G communication equipment, strong acids, seaside and other harsh environments By.

With the continuous advancement of science and technology, the processing and computing speeds of processors and electronic components in general computer systems or electronic products have been relatively continuously improved to meet various operational requirements. However, the increase in processing and computing speeds relatively makes the processor , Electronic components produce more heat energy. When the heat energy is not quickly removed, the processor and electronic components will be overheated and cause performance degradation, stop operation, or even damage. Therefore, the heat dissipation treatment of processors and electronic components is a very important link involving the performance and service life of computer systems or electronic products.

The existing heat sink is mainly composed of a substrate and several heat dissipation fins. The substrate is used to contact the heat source, and the heat dissipation fins are set up in parallel on the top surface of the substrate. When the substrate absorbs the heat energy of the heat source, it will The heat energy is transferred to each of the heat dissipation fins, and the heat energy on the heat dissipation fins can be transferred to the outside air by the contact between the heat dissipation fins and the air, so as to achieve a cooling effect. However, although the substrate and the heat dissipation fins are made of metal materials with good heat transfer rate, their heat dissipation capacity is limited by the material properties and structure, and it is difficult to further improve.

In addition, the above-mentioned heat sinks or heat sinks on the market are usually made of metals such as copper and aluminum. Although their thermal conductivity is very good, their chemical stability is not good, and they are prone to oxidation, corrosion and other problems, which will affect Heat dissipation rate.

The main purpose of the present invention is to provide a temperature equalizing plate with carbon fiber composite material, which uses carbon fiber materials with good thermal conductivity and chemical stability through the bottom plate and top plate, so that the equalizing plate can dissipate heat from the existing metal equalizing plate. The efficiency is close to the outside, and the problem of insufficient corrosion resistance of the metal uniform temperature plate can be improved.

The purpose and effects of the present invention are achieved by the following technologies:

A uniform temperature plate with carbon fiber composite material, which includes a bottom plate, a top plate, at least one capillary mesh plate and a plurality of support columns; wherein:

The bottom plate and the top plate are made of carbon fiber material, and the bottom plate and the top plate are covered with each other up and down correspondingly, so that a closed cavity is formed between the bottom plate and the top plate. Inject working fluid;

The capillary mesh plate is a mesh body made of a metal heat-conducting material, which is arranged in the chamber, and the capillary mesh plate is provided with a plurality of perforations;

The support column penetrates the perforation of the capillary mesh plate, and its two ends abut the bottom plate and the top plate respectively;

Through the use of carbon fiber materials for the bottom plate and the top plate, the uniform temperature plate has good thermal conductivity and chemical stability, and achieves the effects of high heat dissipation efficiency and corrosion resistance.

The above-mentioned uniform temperature plate with carbon fiber composite material, wherein the working flow system is one of pure water, methanol, acetone or sodium solution.

As mentioned above, the thermally conductive metal plate with carbon fiber composite material is copper.

In order to make the technical content, the purpose of the invention and the effect achieved by the present invention more complete and clear, the following detailed descriptions are provided, and please refer to the disclosed drawings and figure numbers together:

Please refer to the first to fourth pictures. The temperature equalizing plate with carbon fiber composite material of the present invention includes a bottom plate 1, a top plate 2, at least one capillary mesh plate 3 and a plurality of support columns 4; wherein:

The bottom plate 1 is a plate body made of carbon fiber material;

The top plate 2 is also a plate body made of carbon fiber material. The top plate 2 and the bottom plate 1 are arranged in close contact with each other up and down, so that a closed chamber A is formed between the bottom plate 1 and the top plate 2 (see Figure 4). A working fluid B is injected into A (see Figure 5), where the working fluid B is one of pure water, methanol, acetone or sodium solution;

The capillary mesh plate 3 is a mesh body made of a metal thermally conductive material, and is set in the chamber A. The capillary mesh plate 3 is provided with a plurality of through holes 31, wherein the metal thermally conductive material of the capillary mesh plate 3 is copper ；

The support column 4 is inserted through the perforation 31 of the capillary mesh plate 3, and its two ends abut against the bottom plate 1 and the top plate 2 respectively, so that the capillary mesh plate 3 is suspended in the chamber A, and the capillary mesh plate 3 Divide chamber A into upper and lower layers.

During the implementation (please refer to the fifth figure), the uniform temperature plate is installed and attached to the heating element 5 (such as processor/CPU). At this time, the heat generated by the heating element 5 enters the chamber A through heat conduction from the external high temperature area. The working fluid B near the heat source quickly absorbs heat and vaporizes into steam, taking away a large amount of heat energy, and then using the latent heat of the steam to diffuse from the high-pressure zone to the low-pressure zone (that is, the low-temperature zone), and contact the lower temperature zone. On the inner wall, the vapor will quickly condense into a liquid and release heat energy. The condensed water flows back to the heat source by the capillary action of the capillary mesh plate 3 to form a heat transfer loop, thus passing through the evaporation and condensation of the working fluid B and passing through the capillary mesh. The cyclic operation of the board 3 can achieve the purpose of continuous heat dissipation of the heating element.

Since the bottom plate 1 and top plate 2 of the present invention are made of carbon fiber materials, they not only have good thermal conductivity, but also have chemical stability, so they can resist corrosion, thereby extending the life of the temperature equalization plate and reducing the replacement rate. The effect can be used in 5G communication equipment and suitable for harsh environments such as strong acid (laboratory) and seaside.

The above-mentioned examples are only part of the embodiments of the present invention, and are not intended to limit the present invention. Any modification based on the creative spirit and characteristics of the present invention should also be included in the scope of this patent.

To sum up, the embodiments of the present invention can indeed achieve the expected use effect, and the specific technical means disclosed by it have not been seen in similar products, nor have they been disclosed before the application. It is in full compliance with the patent law. Regulations and requirements, Yan submits an application for a patent for invention in accordance with the law, and asks for favors for examination, and grants a patent for approval, it is really convenient.

1: bottom plate

2: top plate

3: Capillary mesh plate

31: Piercing

4: Support column

5: Heating element

A: Chamber

B: working fluid

Figure 1: A three-dimensional exploded view of the temperature equalizing plate with carbon fiber composite material of the present invention

Figure 2: The three-dimensional schematic diagram of the combination of the support column and the capillary mesh plate of the temperature equalizing plate with carbon fiber composite material of the present invention

The third figure: the three-dimensional schematic diagram of the temperature equalizing plate with carbon fiber composite material of the present invention, the supporting column and the capillary mesh plate are arranged in the bottom plate

Figure 4: Combined cross-sectional view of the temperature equalizing plate with carbon fiber composite material of the present invention

Figure 5: A schematic diagram of the cooling and heat dissipation state of the uniform temperature plate with carbon fiber composite material of the present invention

1: bottom plate

2: top plate

3: Capillary mesh plate

31: Piercing

4: Support column

Claims (3)

A uniform temperature plate with carbon fiber composite material, which includes a bottom plate, a top plate, at least one capillary mesh plate and a plurality of support columns; wherein: The bottom plate and the top plate are made of carbon fiber material plates with good heat dissipation efficiency and corrosion resistance. The bottom plate and the top plate are covered with each other up and down correspondingly to form a closed cavity between the bottom plate and the top plate. Chamber, in which working fluid is injected into the chamber; The capillary mesh plate is a mesh body made of a metal heat-conducting material, which is arranged in the chamber, and the capillary mesh plate is provided with a plurality of perforations; The support column penetrates the perforation of the capillary mesh plate, and its two ends abut against the bottom plate and the top plate respectively. The uniform temperature plate with carbon fiber composite material according to claim 1, wherein the working flow system is one of pure water, methanol, acetone, or sodium solution. The uniform temperature plate with carbon fiber composite material according to claim 1, wherein the metal heat conductive material used for the capillary mesh plate is copper.

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