Completed vapor chamber

Abstract

We provide finished vapor chamber products. [Solution] The completed vapor chamber of the present invention comprises a stainless steel housing (10), a capillary structure (14), a support structure (20), and a working fluid (30). The stainless steel housing has a cavity (100) and a roughened surface (101) facing the cavity. The capillary structure is disposed on the roughened surface. The support structure is positioned within the cavity and includes a layer (21) formed by a 3D printing and sintering method, and a plurality of protrusions (22) laminated and printed on the layer, the protrusions being disposed at intervals on both sides of the layer. The working fluid is injected into the cavity.

Description

[Technical Field]

[0001] The present invention relates to a vapor chamber, and more particularly to a complete vapor chamber without a gas vent tube. [Background technology]

[0002] In the manufacturing process of a vapor chamber, it is often necessary to install an injection pipe (also called a degassing pipe) to inject the working fluid and perform degassing or vacuuming, and then seal the mouth of the vapor chamber by sealing the subsequent sealed end. However, installing an injection pipe increases the complexity of manufacturing, increases costs, and may occupy additional space, making it unsuitable for designing a thin vapor chamber. Summary of the Invention [Problem to be solved by the invention]

[0003] Furthermore, vapor chambers often have an internal support structure installed to provide sufficient support for the vapor chamber's internal space to prevent deformation or damage during manufacturing or use. A rationally designed internal support structure also helps evenly distribute heat to prevent overheating in certain areas, thereby improving the vapor chamber's heat dissipation performance. However, the design and manufacturing of the support structure require precise processing techniques, which increases the complexity and cost of the process.

[0004] Therefore, the inventors of the present invention believed that the above drawbacks could be improved, and after extensive research, they came up with the present invention, which effectively improves the above issues through rational design.

[0005] The present invention was made in light of these circumstances, and the primary objective of the present invention is to provide a finished vapor chamber that does not require an injection tube, thereby reducing manufacturing complexity, reducing costs, and not occupying additional space, contributing to the design of a thinner vapor chamber.

[0006] The second objective of this invention is to provide a finished vapor chamber that maintains the structural integrity and stability of the vapor chamber by forming a support structure through 3D printing and sintering, thereby providing sufficient support structure for the internal space of the vapor chamber to prevent deformation or destruction during manufacturing or use. [Means for solving the problem]

[0007] To achieve the above object, one embodiment of the present invention provides a completed vapor chamber comprising a stainless steel housing, a capillary structure, a support structure, and a working fluid. The stainless steel housing has a cavity and a roughened surface facing the cavity. The capillary structure is disposed on the roughened surface. The support structure is positioned within the cavity and includes a layer formed by 3D printing and sintering, and a plurality of protrusions laminated and printed on the layer, the plurality of protrusions being spaced apart on both sides of the layer. The working fluid is injected into the cavity.

[0008] In addition, in the finished vapor chamber of the present invention, the stainless steel housing comprises a bottom plate, a frame, and a cover plate, and the wall surfaces of the cavity are roughened by a laser so that the bottom plate and the cover plate face each other.

[0009] In addition, in the finished vapor chamber of the present invention, the capillary structure is formed by printing stainless steel powder using 3D laser sintering, and the thickness of the capillary structure is between 0.01 mm and 0.1 mm.

[0010] In addition, in the completed vapor chamber according to the present invention, the plurality of protrusions are 1 cm 2 The laminate is characterized in that the number of particles is provided on both sides of the laminate so that there are an average of 25 to 30 particles per layer.

[0011] Furthermore, in the finished vapor chamber of the present invention, each convex portion is a hollow cone, and a convex portion provided on one side of the layer plate is connected to an adjacent convex portion provided on the other side.

[0012] In addition, in the finished vapor chamber of the present invention, the working fluid is injected into the support structure in the cavity.

[0013] In addition, in the finished vapor chamber of the present invention, the stainless steel housing is sealed using a laser welding method. [Effects of the Invention]

[0014] The present invention is configured as described above and has the following advantages. The finished vapor chamber of the present invention has a roughened inner wall surface of a stainless steel housing, a capillary structure formed on the roughened surface, and a support structure formed using a 3D printing and sintering method. The vapor chamber is manufactured by vacuuming and laser welding the semi-finished vapor chamber within a sealed cavity. The finished vapor chamber of the present invention does not require an injection tube, reducing manufacturing complexity and costs. Furthermore, omitting the installation of an injection tube is advantageous for designing a thinner vapor chamber. Furthermore, since the support structure of the present invention is formed using a 3D printing and sintering method, manufacturing complexity is reduced, costs are reduced, and no additional space is occupied, which is advantageous for designing a thinner vapor chamber. Furthermore, since the internal support structure of the present invention is formed using a 3D printing and sintering method, the support structure design and processing techniques are simplified, reducing process complexity and costs. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a flow chart illustrating a vapor chamber process according to an embodiment of the present invention. [Figure 2] 1 is an exploded view showing a completed vapor chamber according to an embodiment of the present invention; FIG. [Figure 3] 1 is a perspective view showing the external appearance of a support structure according to the present invention; [Figure 4] 2 is a schematic diagram of the working fluid being injected into the support structure according to the present invention; [Figure 5] 1 is a schematic view showing clamping of a jig according to the present invention; [Figure 6] 1 is a schematic diagram illustrating evacuation of a vapor chamber process according to an embodiment of the present invention; [Figure 7] 1 is a schematic diagram illustrating a vapor chamber welding process according to an embodiment of the present invention; [Figure 8] 1 is a perspective view showing the appearance of a finished vapor chamber according to an embodiment of the present invention; [Figure 9] 1 is a cross-sectional view showing the assembly of a finished vapor chamber according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention will be described below through embodiments of the invention, but the following embodiments do not limit the invention according to the scope of the utility model claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0017] Figure 1 is a flowchart showing a vapor chamber process according to one embodiment of the present invention. The present invention provides a vapor chamber process without an injection pipe, eliminating the need to inject a working fluid through an injection pipe (gas vent pipe) or to employ processes such as gas venting or vacuuming during the vapor chamber process. The present invention also provides a finished vapor chamber manufactured according to the vapor chamber process of Figure 1.

[0018] Figure 2 is an exploded view showing a finished vapor chamber according to one embodiment of the present invention, and also illustrates the vapor chamber process shown in Figure 1. The vapor chamber process according to the present invention includes step a) of providing a stainless steel housing 10 having a cavity 100, and step b) of roughening the inner wall surface of the stainless steel housing 10 to form a roughened surface.

[0019] In this embodiment, the stainless steel housing 10 includes a bottom plate 11, a frame 12, and a cover plate 13. The frame 12 is disposed between the bottom plate 11 and the cover plate 13, and a cavity 100 is formed between the bottom plate 11 and the cover plate 13. In step b, the present invention roughens the wall surfaces of the bottom plate 11 and the cover plate 13 facing the cavity 100 using a laser processing method, and in step c, forms a capillary structure 14 on the roughened surface. Specifically, the capillary structure 14 is formed by printing stainless steel powder using 3D laser sintering, and the thickness of the capillary structure 14 is 0.01 mm or more and 0.1 mm or less.

[0020] Further, based on step d, the present invention forms the support structure 20 by 3D printing and sintering, and positions the support structure 20 in the cavity 100. FIG. 3 is a perspective view showing the appearance of the support structure according to the present invention. In this embodiment, the support structure 20 includes a layer 21 and a plurality of protrusions 22. In the support structure 20 of the present invention, a 1 cm 2 cm 3 cm 4 cm 5 cm 6 cm 7 cm 8 cm 9 cm 10 cm 11 cm 12 cm 13 cm 14 cm 15 cm 16 cm 17 cm 18 cm 19 cm 20 cm 21 22 cm 23 cm 24 cm 25 cm 26 cm 27 cm 28 cm 29 cm 30 cm 31 cm 32 cm 33 cm 34 cm 35 cm 36 cm 37 cm 38 cm 39 cm 40 cm 41 cm 42 cm 43 cm 44 cm 45 cm 46 cm 47 cm 48 cm 49 cm 50 cm 51 cm 52 cm 53 cm 54 cm 55 cm 56 cm 57 cm 58 cm 59 cm 60 cm 61 cm 62 cm 63 cm 64 cm 65 cm 66 cm 67 cm 68 cm 69 cm 69 cm 70 cm 71 cm 72 cm 73 cm 74 cm 75 cm 76 cm 77 cm 78 cm 79 cm 79 cm 79 cm 79 cm 76 cm 79 ... 2 An average of 25 to 30 protrusions 22 are provided per layer 21. Specifically, each protrusion 22 is a hollow cone. Furthermore, a protrusion 22 provided on one surface of the layer 21 is connected to an adjacent protrusion 22 provided on the other surface. It should be noted that the support structure 20 further includes a plurality of through holes provided between adjacent protrusions 22.

[0021] 4 is a schematic diagram of the present invention, illustrating the working fluid being injected into the support structure, and is also shown in conjunction with the vapor chamber process of FIG. 1. The vapor chamber process of the present invention further includes step e of injecting the working fluid 30 into the support structure 20. In this embodiment, the working fluid 30 is first injected into the support structure 20, and then placed together with the support structure 20 in the cavity 100. In actual practice, the support structure 20 is placed in the stainless steel housing 10, and then the working fluid 30 is injected into the cavity 100. It should be noted that the base plate 11 of the present invention is first placed on the processing table 40, and then the frame 12 is attached to the base plate 11 to form the cavity 100, which facilitates the subsequent placement of the support structure 20.

[0022] 5 is a schematic diagram showing the clamping of a jig according to the present invention. The stainless steel housing 10 of the present invention comprises a bottom plate 11, a frame 12, and a cover plate 13. After the working fluid 30 is injected into the cavity 100, the frame 12 is covered with the cover plate 13 to seal the cavity 100. In actual practice, the stainless steel housing 10 is positioned by being compressed with a jig 50.

[0023] 6 is a schematic diagram illustrating evacuation of a vapor chamber process according to an embodiment of the present invention, and will be described in conjunction with the vapor chamber process of FIG. 1. The vapor chamber process according to the present invention further includes step f of providing a sealed cavity 60 and placing the stainless steel housing 10, on which the support structure 20 is installed, into the sealed cavity 60. The stainless steel housing 10 is placed on the processing table 40 and compressed by the jig 50. The vapor chamber process according to the present invention also includes step g of using a vacuum device 70 to evacuate the sealed cavity 60 and form a vacuum in the sealed cavity 60 and the cavity 100 of the stainless steel housing 10.

[0024] It should be noted that the vacuum device 70 is a vacuum pump that is connected to the sealed cavity 60 and draws a vacuum on the sealed cavity 60. In addition, in the vacuum operation of step g, the sealed cavity 60 is heated to a temperature lower than the boiling point of the working fluid 30.

[0025] 7 is a schematic diagram showing the welding process for a vapor chamber according to an embodiment of the present invention, and is described in conjunction with the vapor chamber process of FIG. 1. The vapor chamber process according to the present invention further includes step h of sealing the stainless steel housing 10. The present invention positions the support structure 20 by laser welding to the surface of the stainless steel housing 10. The present invention also performs laser welding on the periphery of the stainless steel housing 10 to join the bottom plate 11, frame 12, and cover plate 13, maintaining the vacuum and sealing of the cavity 100 and completing the vapor chamber.

[0026] 8 is a perspective view of the exterior of a finished vapor chamber according to one embodiment of the present invention. This invention uses the vapor chamber process described above to manufacture the finished vapor chamber 1. Because the finished vapor chamber 1 does not use an injection pipe (vent pipe) in the process, there are no injection pipes (vent pipes) or traces of subsequent processing on the exterior of the finished product.

[0027] 9 is a cross-sectional view showing the assembly of a completed vapor chamber according to one embodiment of the present invention. The completed vapor chamber 1 according to the present invention comprises a stainless steel housing 10, a capillary structure 14, a support structure 20, and a working fluid 30. The stainless steel housing 10 has a cavity 100 and includes a roughened surface 101 facing the cavity.

[0028] Furthermore, the support structure 20 is positioned in the cavity 100. The support structure 20 includes a layer plate 21 formed by a 3D printing and sintering method, and a plurality of protrusions 22 laminated and printed on the layer plate 21. These protrusions 22 are provided at intervals on both sides of the layer plate 21. Furthermore, the working fluid 30 is injected into the cavity 100.

[0029] Specifically, the stainless steel housing 10 includes a bottom plate 11, a frame 12, and a cover plate 13. The support structure 20 includes a layer plate 21 and a plurality of protrusions 22. Each protrusion 22 is a hollow cone, and a protrusion 22 on one side of the layer plate 21 is connected to an adjacent protrusion 22 on the other side. The protrusion 22 on one side of the support structure 20 abuts against the bottom plate 11, and the protrusion 22 on the other side abuts against the cover plate 13.

[0030] As a result, the vapor chamber finished product 1 of the present invention does not require an injection pipe, which reduces manufacturing complexity, lowers costs, and does not occupy additional space, contributing to the design of a slim vapor chamber. Furthermore, the present invention uses a 3D printing and sintering method to form the internal support structure, simplifying the support structure design and processing technology, reducing process complexity and lowering costs.

[0031] Although the embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design modifications and the like are also included within the scope of the present invention without departing from the gist of the present invention. [Explanation of symbols]

[0032] 1 Completed Vapor Chamber 10 Stainless steel housing 100 cavities 101 Rough surface 11 Bottom plate 12 frames 13 Cover plate 14 Capillary structure 20 Support structure 21 layer plate 22 Convex part 30 Working Fluid 40 Processing Table 50 Jig 60 Sealed Cavity 70 Vacuum equipment

Claims

1. a stainless steel housing having a cavity, the stainless steel housing including a roughened surface facing the cavity; a capillary structure disposed on the rough surface; a support structure positioned in the cavity, the support structure including a layer plate formed by a 3D printing and sintering method, and a plurality of protrusions laminated and printed on the layer plate, the plurality of protrusions being spaced apart on both sides of the layer plate; A vapor chamber finished product characterized by comprising: a working fluid injected into the cavity.

2. The finished vapor chamber of claim 1, characterized in that the stainless steel housing comprises a bottom plate, a frame, and a cover plate, and the wall surfaces of the cavity are roughened by a laser so that the bottom plate and the cover plate face each other.

3. 2. The vapor chamber of claim 1, wherein the capillary structure is formed by printing stainless steel powder using 3D laser sintering, and the thickness of the capillary structure is 0.01 mm or more and 0.1 mm or less.

4. The plurality of protrusions are 1 cm ２ 2. The finished vapor chamber according to claim 1, characterized in that the number of particles is set on both sides of the layer plate so that the average number of particles is 25 to 30 per layer.

5. A finished vapor chamber as described in claim 4, characterized in that each of the multiple protrusions is a hollow cone, and a protrusion on one side of the layer plate is connected to an adjacent protrusion on the other side.

6. 2. The vapor chamber of claim 1, wherein the working fluid is injected into the support structure in the cavity.

7. 2. The vapor chamber of claim 1, wherein the stainless steel housing is sealed by laser welding.

8. 2. The vapor chamber assembly according to claim 1, wherein the support structure further comprises a plurality of through holes formed between adjacent protrusions.

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