TW202040083A - Complex vapor chamber structure - Google Patents

Abstract

A complex vapor chamber structure includes a main body and at least one tubular body. The main body has a first chamber, a first opening and a second opening. A first capillary structure is disposed in the first chamber. A working fluid is filled in the first chamber. The first and second openings pass through one face of the main body to communicate with the first chamber. The tubular body has a first end, a second end and a passage. The first and second ends are respectively correspondingly inserted in the first and second openings, whereby the passage of the tubular body communicates with the first chamber via the first and second ends to form a loop for vapor-liquid circulation.

Description

Composite uniform temperature plate structure

The present invention relates to a temperature equalizing plate structure, in particular to a composite temperature equalizing plate structure that can greatly improve heat dissipation efficiency.

As the current electronic equipment is gradually advertised as thin and light, all components must be reduced in size accordingly. However, the heat generated by the reduction in the size of electronic equipment has become a major obstacle to improving the performance of electronic equipment and systems. Therefore, in order to effectively solve the heat dissipation problem of components in electronic equipment, the industry has respectively proposed a Vapor chamber and a heat pipe with better thermal conductivity to effectively solve the current heat dissipation problem. The vapor chamber (Vapor chamber) includes a rectangular casing and a capillary structure on the inner chamber wall of the casing, and the casing is filled with working liquid, and one side of the casing (ie, the evaporation zone) It is attached to a heating element (such as central processing unit, north-south bridge crystal, transistor, etc.) to absorb the heat generated by the heating element, so that the liquid working fluid is evaporated in the evaporation zone of the casing and converted into a vapor state. The heat is transferred to the condensation zone of the shell. The vapor working liquid is cooled in the condensation zone and then condensed into a liquid state. The liquid working liquid flows back to the evaporation zone through gravity or capillary structure to continue the vapor-liquid circulation to effectively achieve The effect of uniform temperature and heat dissipation. The principle and theoretical structure of a heat pipe is the same as that of a temperature equalizing plate. A capillary structure is provided on the inner wall of the heat pipe. Then the heat pipe is evacuated and filled with working fluid, and finally closed to form a heat pipe structure. When the working fluid is heated and evaporated from the evaporating part, it diffuses to the condensation end, and the working fluid is in the vapor state at the evaporating part, and when it leaves the evaporating part and diffuses to the condensation end, it is gradually cooled and condensed into a liquid state, and then again It flows back to the evaporation part through the capillary structure. Comparing the temperature equalization plate and the heat pipe, only the heat conduction method is different. The heat conduction method of the equalization plate is two-dimensional, which is the surface heat conduction method. However, the heat conduction method of the heat pipe is the one-dimensional heat conduction method (that is, remote heat dissipation). Therefore, the current electronic components only work with a single heat pipe or a uniform temperature plate. Therefore, some companies combine the uniform temperature plate and the heat pipe to use, and when the working liquid inside the uniform temperature plate is heated and evaporated, it is converted into a vapor state. Liquid, except for a part of the working liquid that will flow toward the top side of the uniform temperature plate, another part of the working liquid will flow to a condensing end of the heat pipe and be converted into a liquid working fluid, and then flow back to the liquid through the capillary force of the capillary structure of the heat pipe The vapor-liquid circulation is achieved in the uniform temperature plate. However, although the conventional uniform temperature plate combined with the heat pipe can simultaneously have the functions of uniform temperature heat dissipation and remote heat dissipation, relatively, when the liquid working fluid flows back from the condensing end of the heat pipe to the uniform temperature In the process of warming the interior of the plate, the flow path is relatively elongated, which also increases the heat dissipation time, resulting in poor heat dissipation efficiency.

Therefore, in order to effectively solve the above-mentioned problems, the main purpose of the present invention is to provide a composite temperature equalizing plate structure that greatly improves the overall heat dissipation efficiency. To achieve the above objective, the present invention provides a composite temperature equalizing plate structure, which includes a body and at least one tube body; The body has a first chamber, a first opening, and a second opening. The first chamber has a first capillary structure and is filled with a working fluid. The first and second openings penetrate one side of the body and are connected to the The first chamber communicates with each other. The tube body has a first end, a second end, and a passage. The first and second ends are respectively inserted into the aforementioned first and second openings, and the passage passes through the first and second openings. The end communicates with the first chamber. Through the design of the structure of the present invention, when at least one heat source is attached to the main body, first, the first plate (ie, the evaporation zone) of the main body will absorb the heat generated by the heat source to work the liquid state in the first chamber The liquid evaporates and transforms into a vaporous working liquid. A part of the vaporous working liquid diffuses and conducts heat to the second plate (condensing zone) of the body, where the vaporous working liquid is cooled and condensed into Liquid, the liquid working liquid drips from the first capillary structure back to the first plate to continue the vapor-liquid circulation, so as to effectively achieve the effect of uniform temperature and heat dissipation. In addition, another part of the vaporous working liquid is The structure design that the channel of the tube body and the first chamber of the body communicate with each other diffuses into the channel of the tube body for condensation, and the channel is condensed and converted into a liquid working liquid. In this way, the composite temperature uniformity of the present invention The plate structure has both two-dimensional and three-dimensional heat conduction methods, so that a loop vapor-liquid circulation is formed inside the first chamber of the body and the channel of the tube body, thereby greatly improving the overall heat dissipation efficiency.

The above-mentioned objects and structural and functional characteristics of the present invention will be described based on the preferred embodiments of the accompanying drawings. Please refer to Figures 1, 2 and 3, which are the three-dimensional exploded view, three-dimensional assembly view and partial three-dimensional cross-sectional view of the composite temperature equalizing plate structure of the present invention. As shown in the figure, a composite temperature equalizing plate structure 2 includes A body 20 and at least one tube body 3; The body 20 is correspondingly covered by a first plate body 20a and a second plate body 20b and jointly defines a first chamber 200. In the structural aspect of the present invention, the body 20 can be selected as a uniform temperature A plate or a hot plate or other equivalents can achieve the same effect in this case. A first opening 201 and a second opening 202 are formed through the aforementioned second plate body 20b, and the first and second openings 201, 202 are connected to the first chamber 200 and are located in the first chamber 200 A first capillary structure 21 is provided and a working liquid 22 is filled inside. The pipe body 3 has a first end 30 and a second end 31, and a channel 32 is formed inside the pipe body 3. The first and second ends 30, 31 are respectively inserted into the first opening of the body 20 201 and the second opening 202 enable the passage 32 of the tube body 3 to communicate with the first chamber 200 of the body 20 through the first and second ends 30, 31, and it is obvious from the first and second figures It can be seen that the tube body 3 inserted on the body 20 has a structure similar to a """ shape or a "U" shape when viewed from above. The material of the aforementioned body 20 and the tube 3 is selected to be any of copper, aluminum, iron, stainless steel, titanium or titanium alloy. The body 20 and the tube 3 can be made of the same material or used in a mixed manner. In addition, in the structural aspect of the present invention, the tube body 3 is selected to be a circular heat pipe or a flat heat pipe or a D-type heat pipe or a flat heat pipe or other equivalents, all of which can achieve the same in this case The effect. The inner wall of the channel 32 can be further provided with a second capillary structure (not shown in the figure), or the inner wall of the channel 32 is not provided with the second capillary structure (as shown in Figure 2), in this embodiment It is not limited to taking the inner wall of the channel 32 without the second capillary structure as an illustrative embodiment. The aforementioned first and second capillary structures 21 are preferably powder sintered bodies, but are not limited to this, and can also be selected to be any one of mesh body, fiber body, groove, and braid in specific implementation. The first and second capillary structures 21 can be selected as the same structure or different structures or composite capillaries, and the first and second capillary structures 21 are formed by electrochemical deposition, electroforming, 3D printing or printing. In addition, a plating layer (not shown in the figure) can be directly provided on the inner wall of the aforementioned main body 20 and the tube body 3, or alternatively, the plating layer can be further provided on the first and second capillary structures 21 as a lifting interior. The structure of vapor-liquid circulation efficiency is used, and the coating is either hydrophilic or hydrophobic. Please refer to Figure 1, the composite temperature equalizing plate structure 2 further has at least one first flange 4 and a second flange 5, the first and second flanges 4, 5 are correspondingly provided on the second plate On the first and second openings 201, 202 of the body 20b, the first and second ends 30, 31 of the aforementioned tube 3 are respectively connected to the first and second flanges 4, 5 respectively. Please refer to FIG. 3, which is a partial perspective cross-sectional view of the second embodiment of the present invention. As shown in the figure, the first and second ends 30, 31 of the tube body 3 further extend outward to form a first extension 300 And a second extension portion 310, and the first and second extension portions 300, 310 are extended and inserted into the first chamber 200 of the body 20, and the first and second extension portions 300, 310 are respectively provided with at least A first notch 301 and at least one second notch 311. The first and second notches 301, 311 and the first chamber 200 of the body 20 are in communication with each other. The first and second extensions 301, 311 are optional Abutting (as shown in Figure 3) or not abutting (not shown in the figure) the bottom side of the first chamber 200 (that is, it is arranged on one side of the first capillary structure 21). Therefore, through the design of the structure of the present invention, when at least one heat source (not shown) is attached to the main body 20, firstly, the first plate 20a (ie, the evaporation zone) of the main body 20 will adsorb the heat source The generated heat evaporates the liquid working liquid 22 in the first chamber 200 and converts it into a vaporous working liquid 22. A part of the vaporous working liquid 22 diffuses and conducts the heat to the second plate 20b of the body 20 (ie condensation Area), and where the working liquid 22 in the vapor state is cooled and condensed into a liquid state, the liquid working liquid 22 drips onto the first capillary structure 21 and returns to the first plate 20a to continue the vapor-liquid circulation and enter In order to effectively achieve the effect of uniform temperature and heat dissipation. In addition, another part of the vapor working liquid 22 is diffused into the channel 32 of the tube 3 to be condensed by the structural design that the channel 32 of the tube 3 and the first chamber 200 of the body 20 communicate with each other. The channel 32 is condensed and converted into a liquid working fluid 22. As a result, the composite uniform temperature plate structure 2 of the present invention has both two-dimensional and three-dimensional heat conduction methods to reach the first chamber 200 and the tube of the body 20. The channel 32 of the body 3 forms a loop type vapor-liquid circulation, which can greatly improve the overall heat dissipation efficiency. Please refer to Figures 4, 5, and 6, which are the three-dimensional exploded view, three-dimensional assembly view and implementation schematic diagram of the third embodiment of the composite temperature equalizing plate structure of the present invention. As shown in the figure, the difference from the aforementioned first embodiment is , The main body 20 can be provided with two pipes 3, the number and location of the pipes 3 are not limited, which is based on the needs of the user to set and adjust the number of pipes 3, and the pipes 3 can also The above-mentioned effects can also be achieved by deploying a plurality of heat sink fin groups 6 (as shown in Figure 6) with different structures and heights. As mentioned above, the present invention has the following advantages over the prior art: 1. Significantly improve heat dissipation efficiency. The present invention has been described in detail above, but what is described above is only a preferred embodiment of the present invention, and should not limit the scope of implementation of the present invention, that is, all equivalent changes and modifications made in accordance with the scope of application of the present invention Etc., should still be covered by the patent of the present invention.

2: Composite uniform temperature plate structure 20: body 20a: The first board 20b: second board 200: first chamber 201: first opening 202: second opening 21: The first capillary structure 22: working fluid 3: Tube body 30: first end 300: first extension 301: The first gap 31: second end 310: second extension 311: The second gap 32: Channel 4: first flange 5: second flange 6: cooling fin set 212: second groove 22: working fluid 23: Capillary structure 24: Filling port 25: rib 3: Pedestal 30: First side 300: Insert slot 31: second side 4: heat sink 5: Heat source 6: Heat transfer element

Figure 1 is a three-dimensional exploded view of the first embodiment of the composite uniform temperature plate structure of the present invention; Figure 2 is a three-dimensional assembly diagram of the first embodiment of the composite temperature equalizing plate structure of the present invention; Figure 3 is a partial three-dimensional cross-sectional view of the second embodiment of the composite temperature equalizing plate structure of the present invention; Figure 4 is a three-dimensional exploded view of the third embodiment of the composite temperature equalizing plate structure of the present invention; Figure 5 is a three-dimensional assembly diagram of the third embodiment of the composite temperature equalizing plate structure of the present invention; Fig. 6 is a schematic diagram of the third embodiment of the composite temperature equalizing plate structure of the present invention.

2: Composite uniform temperature plate structure

20: body

20a: The first board

20b: second board

201: first opening

202: second opening

3: Tube body

30: first end

31: second end

4: first flange

5: second flange

Claims (13)

A composite temperature equalizing plate structure, including: A body having a first chamber, a first opening, and a second opening. The first chamber has a first capillary structure and is filled with a working fluid. The first and second openings penetrate one side of the body and are connected with The first chamber is connected; and At least one tube body has a first end, a second end, and a passage. The first and second ends are respectively inserted into the first and second openings, and the passage passes through the first and second ends and the first One chamber is connected. The composite temperature equalizing plate structure according to claim 1, wherein the inner wall of the channel is further provided with a second capillary structure. The composite temperature uniform plate structure according to claim 1, wherein the system is formed by correspondingly covering a first plate body and a second plate body, and the first chamber is formed by the first and second plates The body is jointly defined and formed, and the first and second openings penetrate the second plate body. The composite temperature uniform plate structure according to claim 1, wherein at least one first flange and one second flange are correspondingly provided on the first and second openings, and the first and second ends of the tube body Correspondingly connect with the first and second flanges. The composite temperature equalizing plate structure according to claim 1, wherein the first and second ends of the tube body further have a first extension and a second extension respectively, and the first and second extensions are extended and inserted In the first cavity of the main body, the first and second extensions are selected to abut or not abut the bottom side of the first cavity. The composite temperature equalizing plate structure according to claim 5, wherein the first and second extension portions further define at least one first notch and at least one second notch respectively, and the first and second notches are connected to the first cavity The rooms are connected. The composite uniform temperature plate structure according to claim 1, wherein the body is a uniform temperature plate or a hot plate. The composite uniform temperature plate structure according to claim 1, wherein the tube system is a circular heat pipe or a flat heat pipe or a D-type heat pipe or a flat heat pipe. The composite temperature equalizing plate structure according to claim 1, wherein the tube body is in a """ shape or "U" shape when viewed from above. The composite temperature uniform plate structure according to claim 2, wherein the first and second capillary structures are selected to be any one of a powder sintered body, a grid body, a fiber body, a groove or a braid, and the first , The two capillary structures can be selected as the same structure or different structures or composite capillaries. The composite uniform temperature plate structure according to claim 2, wherein the first and second capillary structures are formed by electrochemical deposition, electroforming, 3D printing or printing. The composite uniform temperature plate structure according to claim 1, wherein there is a plating layer formed on the inner wall of the main body and the tube body. The composite temperature uniform plate structure according to claim 1, wherein the material of the body and the tube body is selected to be any one of copper, aluminum, iron, stainless steel, titanium or titanium alloy, and the body and the tube body can be Use the same material or mix and match.

Images