High-efficiency composite capillary vapor chamber

Abstract

The utility model relates to the technical field of VC vapor chamber, and discloses an efficient composite capillary vapor chamber, which comprises an upper cover plate, a copper mesh layer, a copper column assembly, a powder mesh layer and a lower cover plate, the upper cover plate and the lower cover plate are welded and form a plate cavity, the copper mesh layer, the copper column assembly and the powder mesh layer are respectively arranged in the plate cavity, the copper mesh layer is arranged on the upper cover plate in a tiled manner, and the powder mesh layer is arranged on the lower cover plate. The powder net layer is arranged on the lower cover plate in a tiled mode, the two ends of the copper column assembly are in butt joint with the upper cover plate and the lower cover plate respectively, and the copper column assembly is in capillary communication with the copper net layer and the powder net layer synchronously. Under the matching action of the copper net layer, the copper column assembly and the powder net layer, working medium backflow is facilitated, so that the heat absorption efficiency of the working medium is improved, the heat dissipation effect of the vapor chamber is guaranteed, meanwhile, the copper net layer and the powder net layer are matched up and down, the capillary mesh number is prevented from being limited, working medium backflow is effectively promoted, and working medium evaporation is accelerated. And the heat dissipation effect and the heat dissipation efficiency of the vapor chamber are further improved.

Description

Technical Field

[0001] This utility model patent relates to the technical field of VC heat exchange plates, specifically to a high-efficiency composite capillary heat exchange plate. Background Technology

[0002] The vapor chamber plate operates by circulating the evaporation and condensation of the working fluid within its enclosed plate-shaped cavity, giving it the characteristic of rapid temperature uniformity and thus enabling rapid heat conduction and diffusion. When the vapor chamber plate is working, the working liquid in the heated area evaporates upon heating, diffuses to the condensation area, condenses back into a liquid state, and then flows back to the evaporation area through the capillary structure adsorbed by gravity dripping. This cycle achieves heat conduction and diffusion.

[0003] Currently, in order to improve the reflux effect and reflux efficiency of the working fluid, a combination of mesh or fiber body with sintered powder structure is used to improve the reflux effect and reflux efficiency of the working fluid. For example, the prior patent with authorization announcement number CN212300051U discloses a structure comprising: a first plate and a second plate; the first plate has a first side and a second side; the second plate has a third side and a fourth side, the first and second plates are correspondingly covered to form an airtight chamber, a mesh body is attached to the third side of the second plate, and the third side has at least one heated area, the heated area has a first sintered powder structure and is selectively in contact with or connected to the aforementioned mesh body, and the airtight chamber is filled with a working fluid.

[0004] In the existing technology, the heat absorption and working fluid reflux efficiency of the heat spreader are insufficient, resulting in poor efficiency of vapor-liquid circulation. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency composite capillary heat exchanger, which aims to solve the problem of poor working fluid reflux efficiency in existing heat exchangers, thus affecting heat dissipation.

[0006] This utility model is implemented as follows: a high-efficiency composite capillary heat equalizer includes an upper cover plate, a copper mesh layer, a copper column assembly, a powder mesh layer, and a lower cover plate. The upper cover plate and the lower cover plate are welded together to form a plate cavity. The copper mesh layer, the copper column assembly, and the powder mesh layer are respectively located in the plate cavity. The copper mesh layer is laid flat on the upper cover plate, and the powder mesh layer is laid flat on the lower cover plate. The two ends of the copper column assembly are respectively connected to the upper cover plate and the lower cover plate, and the copper column assembly is simultaneously arranged in capillary communication with the copper mesh layer and the powder mesh layer.

[0007] Furthermore, the lower cover plate includes a heat-conducting part for heat exchange with a heat source, and the heat-conducting part is arranged in a protruding manner in a direction away from the upper cover plate; the high-efficiency composite capillary heat spreader includes a copper powder layer, and the powder mesh layer, the copper powder layer and the heat-conducting part are arranged in sequence.

[0008] Furthermore, the copper powder layer and the powder mesh layer are arranged in a flat, overlapping manner, and the copper powder layer and the powder mesh layer are arranged in a capillary-connected manner.

[0009] Furthermore, the upper part of the copper pillar assembly extends through the copper mesh layer and is arranged in a docking manner with the upper cover plate, while the lower part of the copper pillar assembly extends through both the powder mesh layer and the copper powder layer and is arranged in a docking manner with the lower cover plate.

[0010] Furthermore, the copper pillar assembly includes multiple large-diameter pillars, which are arranged at intervals. The upper part of each large-diameter pillar extends through the copper mesh layer and is connected to the upper cover plate. The lower part of each large-diameter pillar extends through both the powder mesh layer and the copper powder layer and is connected to the lower cover plate.

[0011] Furthermore, the large-diameter column includes a large powder column and a large copper column, which are nested together, with the large powder column located inside the large copper column. The two ends of the large powder column are respectively connected capillarily to the copper mesh layer, the powder mesh layer, and the copper powder layer.

[0012] Furthermore, the copper pillar assembly includes multiple small-diameter pillars, the diameter of which is smaller than that of the large-diameter pillar. The lower cover plate includes two side heating sections, and the two ends of the heat-conducting section are respectively connected to the two side heating sections and integrally formed. The small-diameter pillars extend through the powder mesh layer and are connected to the side heating sections.

[0013] Furthermore, the small-diameter column includes a small powder column and a small copper column, the small copper column and the small powder column are arranged in a nested manner, and the small powder column is located inside the small copper column. The two ends of the small powder column are respectively connected to the copper mesh layer and the powder mesh layer in a capillary manner.

[0014] Furthermore, longitudinal segments are formed at both ends of the powder mesh layer, and the longitudinal segments are arranged in capillary communication with the copper mesh layer.

[0015] Furthermore, the copper mesh layer, the powder mesh layer, and the copper powder layer are each arranged in a thin sheet shape.

[0016] Compared with the prior art, the high-efficiency composite capillary heat exchanger provided by this utility model, with the cooperation of the copper mesh layer, copper column assembly and powder mesh layer, facilitates the recirculation of the working fluid, thereby accelerating the efficiency of the working fluid in absorbing heat and ensuring the heat dissipation effect of the heat exchanger. At the same time, the upper and lower cooperation of the copper mesh layer and the powder mesh layer avoids the limitation of capillary mesh number, effectively promotes the recirculation of the working fluid and accelerates the evaporation of the working fluid, further improving the heat dissipation effect and efficiency of the heat exchanger. Attached Figure Description

[0017] Figure 1 This is a cross-sectional schematic diagram of the high-efficiency composite capillary heat equalizer provided by this utility model.

[0018] Figure 2 This is a schematic diagram of the cooperation between the high-efficiency composite capillary heat exchanger and the fin module provided by this utility model;

[0019] Figure 3 This is an enlarged schematic diagram of part A of the high-efficiency composite capillary heat equalizer provided by this utility model;

[0020] Figure 4 This is an enlarged schematic diagram of part B of the high-efficiency composite capillary heat equalizer provided by this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] Reference Figure 1-4 The image shown is a preferred embodiment of the present invention.

[0025] The high-efficiency composite capillary heat spreader includes an upper cover plate 1, a copper mesh layer 2, a copper column assembly 3, a powder mesh layer 4, and a lower cover plate 5. The upper cover plate 1 and the lower cover plate 5 are welded together to form a plate cavity. The copper mesh layer 2, the copper column assembly 3, and the powder mesh layer 4 are located in the plate cavity. The copper mesh layer 2 is laid flat on the upper cover plate 1, and the powder mesh layer 4 is laid flat on the lower cover plate 5. The two ends of the copper column assembly 3 are respectively connected to the upper cover plate 1 and the lower cover plate 5, and the copper column assembly 3 is simultaneously arranged in a capillary connection with the copper mesh layer 2 and the powder mesh layer 4.

[0026] The aforementioned high-efficiency composite capillary heat exchanger, with the combined action of copper mesh layer 2, copper column assembly 3, and powder mesh layer 4, facilitates the recirculation of the working fluid, thereby accelerating the efficiency of the working fluid in absorbing heat and ensuring the heat dissipation effect of the heat exchanger. At the same time, the combination of copper mesh layer 2 and powder mesh layer 4 avoids the limitation of capillary mesh number, effectively promotes the recirculation of the working fluid and accelerates the evaporation of the working fluid, further improving the heat dissipation effect and efficiency of the heat exchanger.

[0027] The lower cover plate 5 includes a heat-conducting part for heat exchange with a heat source. The heat-conducting part is arranged in a protruding manner in a direction away from the upper cover plate 1. In this way, heat conduction is achieved through contact or indirect contact between the heat-conducting part and the heat source.

[0028] The heat-conducting part is arranged at the bottom, so that the working fluid can easily flow back to the heat-conducting part under the action of capillary action and gravity, thus accelerating the efficiency of the working fluid in absorbing heat.

[0029] The high-efficiency composite capillary heat exchanger includes a copper powder layer 6, a powder mesh layer 4, and a heat-conducting part arranged in sequence. Under the combined action of the copper powder layer 6 and the powder mesh layer 4, the working fluid reflux is accelerated, thereby accelerating the efficiency of the working fluid in absorbing heat and improving the heat dissipation effect and efficiency of the heat exchanger.

[0030] The copper powder layer 6 and the powder mesh layer 4 are arranged in a flat, overlapping manner, and the copper powder layer 6 and the powder mesh layer 4 are arranged in a capillary connection; this improves the coordination effect between the copper powder layer 6 and the powder mesh layer 4, thereby facilitating the recirculation of the working fluid, accelerating the evaporation of the working fluid, and improving the heat dissipation effect.

[0031] The upper cover plate 1 and the lower cover plate 5 are arranged in a welded manner, and the upper cover plate 1 and the lower cover plate 5 can be welded and assembled by diffusion welding.

[0032] The upper part of the copper column assembly 3 extends through the copper mesh layer 2 and is arranged in a docking manner with the upper cover plate 1. The lower part of the copper column assembly 3 extends through the powder mesh layer 4 and the copper powder layer 6 and is arranged in a docking manner with the lower cover plate 5. In this way, the copper column assembly 3 plays a supporting and reinforcing role, improving the stability of the upper cover plate 1 and the lower cover plate 5. At the same time, the copper column assembly 3 plays a guiding role, increasing the return path of the working fluid and improving the return efficiency and effect of the working fluid.

[0033] The copper column assembly 3 includes multiple large-diameter columns 31, which are arranged at intervals. The upper part of the large-diameter column 31 extends through the copper mesh layer 2 and is connected to the upper cover plate 1. The lower part of the large-diameter column 31 extends through the powder mesh layer 4 and the copper powder layer 6 and is connected to the lower cover plate 5.

[0034] With the combined action of each large-diameter column 31, it has sufficient supporting force, which improves the load-bearing capacity of the heat exchange plate and extends its service life.

[0035] Furthermore, using large-diameter columns 31 can reduce the number of columns 31 required, thereby reducing costs, and at the same time, it helps to improve the production efficiency of the temperature distribution plate.

[0036] The large-diameter column 31 includes a large powder column 312 and a large copper column 311. The large copper column 311 and the large powder column 312 are arranged in a nested manner, with the large powder column 312 located inside the large copper column 311. The two ends of the large powder column 312 are capillarily connected to the copper mesh layer 2, the powder mesh layer 4, and the copper powder layer 6, respectively. In this way, the large copper column 311 plays a supporting role, while the large powder column 312 realizes the recirculation of the working fluid. This not only effectively ensures the supporting effect but also helps to improve the recirculation efficiency and effect of the working fluid.

[0037] The copper pillar assembly 3 includes multiple small-diameter pillars 32, the diameter of which is smaller than that of the large-diameter pillar 31. The lower cover plate 5 includes two side heating sections. The two ends of the heat-conducting section are respectively connected to the two side heating sections and are integrally formed. The small-diameter pillars 32 extend through the powder mesh layer 4 and are connected to the side heating sections.

[0038] With the combined action of each small-diameter column 32, it has sufficient supporting force, which improves the load-bearing capacity of the heat exchange plate and extends its service life.

[0039] The small-diameter column 32 includes a small powder column 322 and a small copper column 321. The small copper column 321 and the small powder column 322 are arranged in a nested manner, with the small powder column 322 located inside the small copper column 321. The two ends of the small powder column 322 are capillarily connected to the copper mesh layer 2 and the powder mesh layer 4, respectively. In this way, the small copper column 321 plays a supporting role, and the small powder column 322 realizes the recirculation of the working fluid. This not only effectively ensures the supporting effect, but also helps to improve the recirculation efficiency and effect of the working fluid.

[0040] Meanwhile, the small-diameter column 32 is located in the side heating section, and the spatial height of the side heating section is less than that of the heat conduction section. The use of the small-diameter column 32 provides sufficient support and effectively reduces the cost of the heat spreader.

[0041] The powder mesh layer 4 has longitudinal sections at both ends, and the longitudinal sections are capillarily connected to the copper mesh layer 2; this improves the capillary connection between the powder mesh layer 4 and the copper mesh layer 2, allowing the working fluid to flow back through different paths, thereby improving the reflux effect and reflux efficiency of the working fluid.

[0042] The longitudinal section is arranged at an angle, which facilitates the return of the working fluid.

[0043] The upper cover plate 1 and the fin module 7 are assembled together. The fin module 7 helps to dissipate heat and facilitates the cooling of the gaseous working fluid into a liquid working fluid, thereby improving the working fluid reflux efficiency.

[0044] The copper mesh layer 2, the powder mesh layer 4, and the copper powder layer 6 are arranged in thin sheets; this facilitates the assembly between the copper mesh layer 2 and the upper cover 1, as well as the assembly between the powder mesh layer 4 and the copper powder layer 6 and the lower cover 5; thus facilitating the production and manufacturing of the heat exchange plate.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency composite capillary temperature equalizer, characterized in that, The device includes an upper cover plate, a copper mesh layer, a copper pillar assembly, a powder mesh layer, and a lower cover plate. The upper cover plate and the lower cover plate are welded together to form a plate cavity. The copper mesh layer, the copper pillar assembly, and the powder mesh layer are respectively located in the plate cavity. The copper mesh layer is laid flat on the upper cover plate, and the powder mesh layer is laid flat on the lower cover plate. The two ends of the copper pillar assembly are respectively connected to the upper cover plate and the lower cover plate, and the copper pillar assembly is simultaneously arranged in capillary communication with the copper mesh layer and the powder mesh layer.

2. The high-efficiency composite capillary temperature equalizer as described in claim 1, characterized in that, The lower cover plate includes a heat-conducting part for heat exchange with a heat source, and the heat-conducting part is arranged in a protruding manner in a direction away from the upper cover plate; the high-efficiency composite capillary heat spreader includes a copper powder layer, and the powder mesh layer, the copper powder layer and the heat-conducting part are arranged in sequence.

3. The high-efficiency composite capillary temperature equalizer as described in claim 2, characterized in that, The copper powder layer and the powder mesh layer are arranged in a flat, overlapping manner, and the copper powder layer and the powder mesh layer are arranged in a capillary connection.

4. The high-efficiency composite capillary heat equalizer as described in claim 2, characterized in that, The upper part of the copper pillar assembly extends through the copper mesh layer and is arranged in a docking manner with the upper cover plate, while the lower part of the copper pillar assembly extends through both the powder mesh layer and the copper powder layer and is arranged in a docking manner with the lower cover plate.

5. The high-efficiency composite capillary temperature equalizer as described in claim 2, characterized in that, The copper pillar assembly includes multiple large-diameter pillars, which are arranged at intervals. The upper part of each large-diameter pillar extends through the copper mesh layer and is connected to the upper cover plate. The lower part of each large-diameter pillar extends through both the powder mesh layer and the copper powder layer and is connected to the lower cover plate.

6. The high-efficiency composite capillary temperature equalizer as described in claim 5, characterized in that, The large-diameter column includes a large powder column and a large copper column, which are nested together, with the large powder column located inside the large copper column. The two ends of the large powder column are capillarily connected to the copper mesh layer, the powder mesh layer, and the copper powder layer, respectively.

7. The high-efficiency composite capillary heat equalizer as described in claim 5, characterized in that, The copper pillar assembly includes multiple small-diameter pillars, the diameter of which is smaller than that of the large-diameter pillar. The lower cover plate includes two side heating sections. The two ends of the heat-conducting section are respectively connected to the two side heating sections and are integrally formed. The small-diameter pillars extend through the powder mesh layer and are connected to the side heating sections.

8. The high-efficiency composite capillary temperature equalizer as described in claim 7, characterized in that, The small-diameter column includes a small powder column and a small copper column. The small copper column and the small powder column are arranged in a nested manner, and the small powder column is located inside the small copper column. The two ends of the small powder column are respectively connected to the copper mesh layer and the powder mesh layer in a capillary manner.

9. The high-efficiency composite capillary heat equalizer as described in any one of claims 1-8, characterized in that, The powder mesh layer has longitudinal segments at both ends, and the longitudinal segments are arranged in capillary connection with the copper mesh layer.

10. The high-efficiency composite capillary temperature equalizer as described in any one of claims 2-8, characterized in that, The copper mesh layer, the powder mesh layer, and the copper powder layer are each arranged in a thin sheet shape.

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