A flared-mouth type 3DVC heat spreader

Abstract

This utility model relates to a flared-mouth type 3DVC heat spreader, including a VC plate assembly. The VC plate assembly includes a VC upper cover and a VC bottom plate disposed opposite to each other, with a sealed cavity between the VC upper cover and the VC bottom plate. The opposite sides of the VC upper cover and the VC bottom plate are sealed together around the perimeter of the sealed cavity. The VC upper cover is connected to a flared-mouth capillary structure, which includes a copper tube and a flared-mouth copper mesh. The copper tube opens to one end, and the flared-mouth copper mesh is connected to the open end of the copper tube. The flared-mouth copper mesh extends into the sealed cavity and communicates with the sealed cavity. In the sealed cavity, a first copper powder capillary structure or at least one layer of first copper mesh is provided, and the first copper mesh is connected to the flared-mouth copper mesh. The outer side of the VC bottom plate has at least one protrusion corresponding to the sealed cavity, and the inner side of the protrusion forms a groove communicating with the sealed cavity.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for various consumer electronics products, including computers, servers, communications, and power supplies, and particularly to a horn-shaped 3DVC vapor chamber. Background Technology

[0002] With the rapid development of electronic technology and the continuous improvement of the performance of electronic devices, the heat flux density of their internal electronic components is also increasing, placing higher demands on heat dissipation technology. Vapor chambers, as a highly efficient heat dissipation component, are widely used in electronic devices. However, traditional vapor chambers have limitations in their heat conduction methods. Heat pipes conduct heat in a one-dimensional linear manner, while heat in ordinary vacuum chamber vapor chambers is conducted on a two-dimensional surface. Existing 3DVC capillary structures generally adopt a closed-loop powder ring design. For some high-performance, high-power electronic devices, the heat dissipation efficiency of existing vapor chambers is insufficient to meet their heat dissipation requirements. Furthermore, the capillary joints cannot be completely aligned, resulting in poor overall 3DVC performance, higher production costs, and lower yield rates. Utility Model Content

[0003] In view of the above situation, it is necessary to propose a funnel-shaped 3DVC vapor chamber to improve yield and performance.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a horn-shaped 3DVC heat spreader, including a VC plate assembly, the VC plate assembly including a VC upper cover and a VC bottom plate arranged opposite to each other, a sealing cavity between the VC upper cover and the VC bottom plate, and the opposite sides of the VC upper cover and the VC bottom plate are sealed and connected around the perimeter of the sealing cavity.

[0005] The VC cover is connected to a funnel-shaped capillary structure, which includes a copper tube and a funnel-shaped copper mesh. The copper tube opens to one end, and the funnel-shaped copper mesh is connected to the open end of the copper tube. The funnel-shaped copper mesh extends into the sealed cavity and communicates with the sealed cavity.

[0006] The sealed cavity is provided with a first copper powder capillary structure or at least one layer of first copper mesh, and the first copper mesh is connected to the flared copper mesh.

[0007] The outer side of the VC base plate has at least one protrusion corresponding to the sealing cavity, and the inner side of the protrusion forms a groove that communicates with the sealing cavity.

[0008] Furthermore, the copper tube is provided with a capillary structure, which is connected to the flared copper mesh.

[0009] Furthermore, the upper end of the flared copper mesh extends into the copper tube, and the lower end of the capillary structure extends into the flared copper mesh.

[0010] Furthermore, the VC top cover extends away from the VC bottom plate and has a connecting cylinder that surrounds the bottom of the copper tube.

[0011] Furthermore, the lower end of the flared copper mesh has a horizontally outwardly extended folded edge, which is fitted to the upper cover of the VC.

[0012] Furthermore, at least one layer of the first copper mesh is bonded to the folded edge.

[0013] Furthermore, the first copper mesh has two layers. The first layer of the first copper mesh has a first clearance hole that matches the folded edge. The second layer of the first copper mesh is attached to the side of the folded edge facing away from the VC cover and has a second clearance hole that connects to the copper tube.

[0014] Furthermore, both the convex hull and the groove are rectangular, with one of the flared capillary structures located at the center of the convex hull and the other flared capillary structures located at the four corners of the rectangle.

[0015] Furthermore, the VC base plate extends outward with a frame, which contacts and is sintered with the plane of the VC top cover.

[0016] The beneficial effects of this invention are as follows: The flared capillary structure, composed of a copper tube and a flared copper mesh, allows the capillaries inside the copper tube to combine with those inside the sealed cavity. This combination of the capillaries inside the copper tube, the flared copper mesh, the first copper mesh, the second copper mesh, or copper powder not only improves yield but also enhances performance. A raised bulge is provided on the outer side of the VC base plate to facilitate contact with the heating element and to increase the volume of the sealed cavity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a funnel-shaped 3DVC heat spreader according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of a flared 3DVC heat spreader from another direction according to an embodiment of this utility model;

[0019] Figure 3 This is an exploded structural diagram of a funnel-shaped 3DVC heat spreader according to an embodiment of the present invention.

[0020] Figure 4 This is a partial cross-sectional structural diagram of a funnel-shaped 3DVC heat spreader according to an embodiment of the present invention.

[0021] Figure 5This is a schematic diagram of the structure of the first copper mesh of the first layer of a trumpet-shaped 3DVC heat spreader according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the first copper mesh of the second layer of a trumpet-shaped 3DVC heat spreader according to an embodiment of the present invention.

[0023] Label Explanation:

[0024] 100. VC panel assembly; 110. VC top cover; 111. Connecting cylinder; 120. VC base plate;

[0025] 121. Convex hull; 122. Groove; 123. Frame; 130. Sealed cavity;

[0026] 200. Trumpet-shaped capillary mechanism; 210. Copper tube; 211. Capillary structure; 220. Trumpet-shaped copper mesh;

[0027] 221. Folded edge; 300. First copper mesh; 310. First clearance hole; 320. Second clearance hole. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a flared-mouth type 3DVC heat spreader, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0029] Please refer to Figures 1-6 A flared-mouth type 3DVC heat spreader includes a VC plate assembly 100. The VC plate assembly 100 includes a VC upper cover 110 and a VC bottom plate 120 disposed opposite to each other. A sealing cavity 130 is provided between the VC upper cover 110 and the VC bottom plate 120. The opposite sides of the VC upper cover 110 and the VC bottom plate 120 are sealed and connected around the perimeter of the sealing cavity 130.

[0030] The VC top cover 110 is connected to a flared capillary structure 200, which includes a copper tube 210 and a flared copper mesh 220. The copper tube 210 opens to one end, and the flared copper mesh 220 is connected to the open end of the copper tube 210. The flared copper mesh 220 extends into the sealed cavity 130 and communicates with the sealed cavity 130.

[0031] Inside the sealed cavity 130, the groove 122 of the convex 121 is filled with a second copper mesh or copper powder capillary structure.

[0032] The outer side of the VC base plate 120 has at least one protrusion 121 corresponding to the sealing cavity 130, and the inner side of the protrusion 121 forms a groove 122 that communicates with the sealing cavity 130.

[0033] A flared capillary structure 200, consisting of a copper tube 210 and a flared copper mesh 220, is provided. This allows the capillaries within the copper tube 210 to combine with those within the sealed cavity 130. This combination of the capillaries within the copper tube 210, the flared copper mesh 220, the first copper mesh 300, the second copper mesh, or copper powder not only improves yield but also enhances performance. A protrusion 121 is provided on the outer side of the VC base plate 120 to facilitate contact with the heating element and to increase the volume of the sealed cavity 130.

[0034] Please refer to Figure 4 The copper tube 210 contains a capillary structure 211, which is connected to the flared copper mesh 220. The capillary structure 211 inside the copper tube 210 can be formed by sintering copper powder.

[0035] Please refer to Figure 4 The upper end of the flared copper mesh 220 extends into the copper tube 210, and the lower end of the capillary structure 211 extends into the flared copper mesh 220. That is, there is an overlapping portion between the flared copper mesh 220 and the copper tube 210, and there is also an overlapping portion between the capillary structure 211 and the flared copper mesh 220, ensuring stable contact between the flared copper mesh 220 and the capillary structure 211.

[0036] Please refer to Figure 1 and Figure 3 The VC top cover 110 extends away from the VC bottom plate 120 and has a connecting sleeve 111 that surrounds the bottom of the copper tube 210. This improves the stability of the copper tube 210 connection.

[0037] Please refer to Figure 5 The lower end of the flared copper mesh 220 has a horizontally outwardly extended flange 221, which fits against the VC upper cover 110. The flange 221 increases the contact area, ensuring stable capillary contact between the flared copper mesh 220 and the sealed cavity 130.

[0038] Preferably, at least one layer of first copper mesh 300 is attached to the folded edge 221. This ensures the connection between the capillary structure 211 within the sealed cavity 130 and the flared copper mesh 220.

[0039] Please refer to 3- Figure 6 The first copper mesh 300 has two layers. The first layer of the first copper mesh 300 has a first clearance hole 310 that matches the folded edge 221 (e.g., Figure 5 The second layer of the first copper mesh 300 is attached to the side of the folded edge 221 facing away from the VC cover 110 and has a second clearance hole 320 connecting the copper tube 210 (e.g., Figure 6 It is understandable that the diameter of the second clearance hole 320 is smaller than that of the first clearance hole 310, so that the first copper mesh 300 of the second layer and the folded edge 221 have an overlapping portion.

[0040] Please refer to Figure 2 and Figure 3 Both the convex hull 121 and the groove 122 are rectangular. One of the flared capillary structures 200 is located at the center of the convex hull 121, and the other flared capillary structures 200 are located at the four corners of the rectangle.

[0041] Please refer to Figure 3 The VC base plate 120 extends outward with a frame 123, which contacts and is sintered with the plane of the VC top cover 110. This ensures a stable connection between the VC base plate 120 and the VC top cover 110.

[0042] Preferably, the groove 122 of the convex bulge 121 is filled with a second copper mesh or a second copper powder capillary structure.

[0043] Understandably, the flared copper mesh 220, with both its outer and inner diameters gradually increasing from the VC top cover 110 to the VC bottom plate 120, forms a flared shape.

[0044] This 3DVC structure first assembles a copper tube 210 and a flared copper mesh 220. After assembly, a central rod is placed inside, and powder is filled in. Then, sintering is performed to form a flared capillary structure 200. After sintering, it is assembled with the VC top cover 110, covered with a first copper mesh 300 or copper powder, and then another layer of the first copper mesh 300 is added. The assembled structure is then sintered together, completing the connection between the flared structure and the VC top cover 110 plate, forming a complete capillary structure 211. Finally, it is combined with the sintered VC base plate 120 (i.e., sintered with a second copper mesh or second copper powder capillary structure) to form a complete closed cavity.

[0045] Understandably, VC stands for VaporChambe, a heat-conducting plate, also known as a vapor chamber or superconducting heat plate. A flared-mouth 3D VC vapor chamber, or three-dimensional vacuum cavity vapor chamber, combines the advantages of heat pipes and VC vapor chambers, featuring high-efficiency heat dissipation and strong temperature uniformity.

[0046] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0047] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0048] In summary, the 3DVC heat spreader provided by this utility model features a flared capillary structure composed of copper tubes and a flared copper mesh. This structure allows the capillaries within the copper tubes to combine with those within the sealed cavity. Furthermore, the combination of the capillaries within the copper tubes, the flared copper mesh, the first copper mesh, the second copper mesh, or copper powder not only improves yield but also enhances performance. A raised bulge is provided on the outer side of the VC base plate to facilitate contact with the heating element and to increase the volume of the sealed cavity.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A flared-mouth type 3DVC heat spreader, characterized in that, The system includes a VC plate assembly, which includes a VC upper cover and a VC bottom plate disposed opposite to each other. A sealed cavity is provided between the VC upper cover and the VC bottom plate, and the opposite sides of the VC upper cover and the VC bottom plate are sealed together around the perimeter of the sealed cavity. The VC cover is connected to a funnel-shaped capillary structure, which includes a copper tube and a funnel-shaped copper mesh. The copper tube opens to one end, and the funnel-shaped copper mesh is connected to the open end of the copper tube. The funnel-shaped copper mesh extends into the sealed cavity and communicates with the sealed cavity. The sealed cavity is provided with a first copper powder capillary structure or at least one layer of first copper mesh, and the first copper mesh is connected to the flared copper mesh. The outer side of the VC base plate has at least one protrusion corresponding to the sealing cavity, and the inner side of the protrusion forms a groove that communicates with the sealing cavity.

2. The horn-shaped 3DVC heat spreader according to claim 1, characterized in that, The copper tube has a capillary structure inside, and the capillary structure is connected to the flared copper mesh.

3. The horn-shaped 3DVC heat spreader according to claim 2, characterized in that, The upper end of the flared copper mesh extends into the copper tube, and the lower end of the capillary structure extends into the flared copper mesh.

4. The flared-mouth type 3DVC heat spreader according to claim 1, characterized in that, The VC top cover extends away from the VC bottom plate and has a connecting cylinder that surrounds the bottom of the copper tube.

5. A funnel-shaped 3DVC heat spreader according to claim 1, characterized in that, The lower end of the flared copper mesh has a horizontally outward folded edge that fits into the upper cover of the VC.

6. A funnel-shaped 3DVC heat spreader according to claim 5, characterized in that, At least one layer of the first copper mesh is attached to the folded edge.

7. A funnel-shaped 3DVC heat spreader according to claim 6, characterized in that, The first copper mesh has two layers. The first layer of the first copper mesh has a first clearance hole that matches the folded edge. The second layer of the first copper mesh is attached to the side of the folded edge facing away from the VC cover and has a second clearance hole that connects to the copper tube.

8. A funnel-shaped 3DVC heat spreader according to claim 1, characterized in that, Both the convex hull and the groove are rectangular, with one of the flared capillary structures located at the center of the convex hull and the other flared capillary structures located at the four corners of the rectangle.

9. A funnel-shaped 3DVC heat spreader according to claim 1, characterized in that, The VC base plate extends outward with a frame, which contacts and is sintered with the plane of the VC top cover.

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