Pluggable heat-conducting fin

Abstract

The invention belongs to the technical field of heat transfer, and discloses a pluggable heat-conducting fin which is inserted between a heat transfer element and an insertion piece, the heat-conducting fin comprises a metal wrapping supporting structure, a heat-conducting medium and a packaging structure, the metal wrapping supporting structure comprises a first metal layer and a heat-conducting supporting piece, the heat-conducting supporting piece interacts with the first metal layer, and the heat-conducting medium is arranged between the first metal layer and the heat-conducting supporting piece. The deformation quantity of the first metal layer is limited, so that the extrusion quantity when the heat-conducting fin is inserted between the heat transfer element and the insertion piece is reduced, the extrusion quantity of the heat-conducting fin is small, the deformation quantity of the first metal layer is further reduced, resetting is easier and faster after the heat-conducting fin is inserted in place, and the heat-conducting performance of the installed heat-conducting fin is stable and consistent. In addition, the top surface of the heat-conducting supporting piece is close to the heat transfer element, heat transfer is facilitated, the periphery of the heat-conducting supporting piece is wrapped with the heat-conducting medium, the contact area between the heat-conducting supporting piece and the heat-conducting medium is increased, contact is more sufficient, heat exchange efficiency is high, and then the heat conductivity of the whole heat-conducting fin is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat transfer, and in particular to a pluggable heat conducting sheet. Background Art

[0002] Thermal pads are engineering materials with heat conduction and insulation as their core functions. They are mainly used for heat conduction between heating components and heat sinks or metal bases in electronic equipment. Their applications cover LED lighting, automotive electronics, power equipment, and communication equipment.

[0003] In server optical module connectors, the pluggable thermal pad is typically a metal sheet or a PI film (polyimide film) with double-sided adhesive around the edges and a thermally conductive medium in the middle. When the thermal pad is inserted, excessive pressure is applied to the thermal conductive medium, which can easily break through the adhesive around the edges, causing leakage. Furthermore, the thermal conductive medium deforms significantly during insertion, requiring high positive pressure to restore its shape. However, high positive pressure results in excessive compression, making it difficult to achieve a balanced balance and resulting in inconsistent thermal conductivity after installation.

[0004] Therefore, there is an urgent need to provide a pluggable heat conducting sheet to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a pluggable heat conducting sheet to ensure that the deformation is controllable, shorten the heat transfer distance of the heat conducting medium, increase the heat exchange area with the heat conducting medium, and improve the heat exchange efficiency, thereby making the thermal conductivity between the plug-in and plug-out better and more stable.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A pluggable heat conducting sheet is inserted between a heat transfer element and an insert, and the heat conducting sheet comprises:

[0008] The metal outer supporting structure includes a first metal layer and a heat-conducting support member, the heat-conducting support member is fixedly connected to the first metal layer, the surface of the first metal layer is provided with a heat-conducting area and a packaging area, the heat-conducting area is located in the central area of ​​the first metal layer, the packaging area surrounds the heat-conducting area, the outer peripheral wall of the heat-conducting area abuts the inner peripheral wall of the packaging area, and the heat-conducting support member is located in the heat-conducting area;

[0009] A heat-conducting medium, the heat-conducting medium being wrapped around the outer surface of the heat-conducting support member;

[0010] The packaging structure is fixedly connected to the surface of the packaging area, and the packaging structure is wrapped around the outer surface of the heat conducting medium.

[0011] Preferably, the heat-conducting support member is a heat-conducting support column, one end of which is fixedly connected to the surface of the heat-conducting area.

[0012] Preferably, there are multiple heat-conducting support columns, and the multiple heat-conducting support columns are arranged at intervals on the surface of the heat-conducting area.

[0013] Preferably, the heat-conducting support member is a heat-conducting support net, which is arranged parallel to the first metal layer, and the heat-conducting support net is fixedly connected to the surface of the heat-conducting area via a heat-conducting medium;

[0014] Alternatively, the heat-conducting support member is a heat-conducting support plate, the heat-conducting support plate is arranged parallel to the first metal layer, and the heat-conducting support plate is fixedly connected to the surface of the heat-conducting area via a heat-conducting medium.

[0015] Preferably, along the thickness direction of the first metal layer, a side of the first metal layer facing away from the heat-conducting support member is configured as a smooth surface.

[0016] Preferably, the heat conducting sheet further comprises a protective structure, the protective structure comprising a first protective layer, and the first protective layer is detachably connected to the smooth surface;

[0017] And / or, the protection structure includes a second protection layer, and along the thickness direction of the first metal layer, the second protection layer is detachably connected to a side of the packaging structure away from the smooth surface.

[0018] Preferably, the protective structure is made of plastic.

[0019] Preferably, the packaging structure includes a first adhesive layer, one side of which is fixed to the surface of the packaging area;

[0020] Alternatively, the packaging structure includes a second adhesive layer, a third adhesive layer and a rubber layer, one side of the second adhesive layer is fixed to the surface of the packaging area, and the rubber layer is sandwiched between the other side of the second adhesive layer and the third adhesive layer.

[0021] Preferably, a reserved area is further provided on the surface of the first metal layer. The reserved area is located at one end of the first metal layer and an edge of the reserved area abuts against an edge of the packaging area.

[0022] Preferably, the metal outer support structure further comprises a second metal layer, and along the thickness direction of the first metal layer, the second metal layer is fixedly connected to a side of the heat-conducting support component facing away from the first metal layer.

[0023] Beneficial effects of the present invention:

[0024] The present invention provides a pluggable heat-conducting sheet that is inserted between a heat transfer element and an insert. The heat-conducting sheet includes a metal outer support structure, a heat-conducting medium, and a packaging structure. The metal outer support structure includes a first metal layer and a heat-conducting support member. The heat-conducting support member interacts with the first metal layer to limit the deformation of the first metal layer, thereby reducing the amount of extrusion when the heat-conducting sheet is inserted between the heat transfer element and the insert. The smaller the amount of extrusion of the heat-conducting sheet, the further reduced the deformation of the first metal layer. After insertion, the resetting of the heat-conducting sheet will be easier and faster. After installation, the heat-conducting sheet has stable and consistent thermal conductivity. In addition, the top surface of the heat-conducting support member is close to the heat transfer element, which is more conducive to heat transfer. The heat-conducting medium is wrapped around the heat-conducting support member, which increases the contact area with the heat-conducting medium, makes the contact more complete, and improves the heat exchange efficiency, thereby improving the thermal conductivity of the entire heat-conducting sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the heat conducting sheet insertion structure provided in Example 1;

[0026] Figure 2 This is a schematic diagram of the metal outer support structure provided in Example 1;

[0027] Figure 3 is a schematic structural diagram of the first metal layer provided in Example 1;

[0028] Figure 4 This is a schematic diagram of the structure of the heat conducting sheet provided in Example 1;

[0029] Figure 5 This is a schematic diagram of the structure of the heat conducting sheet provided in Example 1 (thickness greater than 0.2 mm);

[0030] Figure 6 This is a schematic diagram of the heat conducting plate structure provided in Example 2;

[0031] Figure 7 This is a schematic diagram of the heat conducting plate structure provided in Example 2 (including the reserved area);

[0032] Figure 8 is a schematic structural diagram of the first metal layer provided in Example 2;

[0033] Figure 9 This is a schematic structural diagram of the heat-conducting support member provided in Example 3;

[0034] Figure 10 This is a schematic diagram of the heat conducting plate structure provided in Example 3;

[0035] Figure 11 This is a schematic diagram of the heat conducting plate structure provided in Example 3 (including the second metal layer).

[0036] In the picture:

[0037] 10. Thermal conductive sheet;

[0038] 20. Heat transfer element;

[0039] 30. Inserts;

[0040] 40. Metal outsourcing support structure; 41. First metal layer; 411. Heat transfer area; 412. Packaging area; 413. Smooth surface; 414. Reserved area; 42. Heat transfer support member; 421. Heat transfer support column; 422. Heat transfer support mesh; 43. Second metal layer;

[0041] 50. Heat transfer medium;

[0042] 60. Encapsulation structure; 61. First adhesive layer; 62. Second adhesive layer; 63. Third adhesive layer; 64. Rubber layer; 65. Fourth adhesive layer;

[0043] 70. Protective structure; 71. First protective layer; 72. Second protective layer. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0045] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used merely to provide additional context and have no special meaning.

[0048] Example 1

[0049] This embodiment provides a pluggable heat conducting sheet, which ensures that the deformation amount is controllable, shortens the heat transfer distance of the heat conducting medium, increases the heat exchange area with the heat conducting medium, and improves the heat exchange efficiency, thereby making the thermal conductivity between the plug-in and plug-out better and more stable.

[0050] Specifically, if Figures 1 to 4 As shown, a pluggable heat-conducting sheet 10 is inserted between a heat transfer element 20 and an insert 30. The heat-conducting sheet 10 includes a metal outer supporting structure 40, a heat-conducting medium 50 and a packaging structure 60. The metal outer supporting structure 40 includes a first metal layer 41 and a heat-conducting support member 42. The heat-conducting support member 42 is fixedly connected to the first metal layer 41. The surface of the first metal layer 41 is provided with a heat-conducting area 411 and a packaging area 412. The heat-conducting area 411 is located in the central area of ​​the first metal layer 41. The packaging area 412 surrounds the heat-conducting area 411. The outer peripheral wall of the heat-conducting area 411 abuts the inner peripheral wall of the packaging area 412. The heat-conducting support member 42 is located in the heat-conducting area 411; the heat-conducting medium 50 is wrapped around the outer surface of the heat-conducting support member 42; the packaging structure 60 is fixedly connected to the surface of the packaging area 412, and the packaging structure 60 is wrapped around the outer surface of the heat-conducting medium 50.

[0051] The thermally conductive support member 42 interacts with the first metal layer 41, limiting the deformation of the first metal layer 41, thereby reducing the amount of extrusion when the thermally conductive sheet 10 is inserted between the heat transfer element 20 and the insert 30. Less extrusion reduces deformation, making it easier and faster to reposition after insertion, resulting in stable and consistent thermal conductivity of the installed thermally conductive sheet 10. Furthermore, the top surface of the thermally conductive support member 42 is closer to the heat transfer element 20, which is more conducive to heat transfer. The thermally conductive medium 50 is surrounded by the thermally conductive support member 42, increasing the contact area with the thermally conductive medium 50, making contact more complete and improving heat exchange efficiency, thereby improving the thermal conductivity of the entire thermally conductive sheet 10. Furthermore, the thermally conductive support member 42 reduces the amount of thermally conductive medium 50 used, reducing resource consumption and pollutant emissions during the production, use, and disposal of the thermally conductive medium 50, thereby reducing the burden and damage to the ecological environment and being more environmentally friendly. In this embodiment, the first metal layer 41 is a composite material of stainless steel and copper. In other embodiments, the first metal layer 41 is made of copper and copper alloys, aluminum and aluminum alloys, or alloy steel.

[0052] Furthermore, the thermally conductive support member 42 is a thermally conductive support column 421, one end of which is fixedly connected to the surface of the thermally conductive area 411, thereby improving the stability of the connection between the thermally conductive support column 421 and the first metal layer 41, and the top of the columnar structure further shortens the distance between the thermally conductive support column 421 and the heat transfer element 20, thereby improving the heat transfer efficiency of the thermally conductive support column 421.

[0053] Furthermore, there are multiple heat-conducting support columns 421, and the multiple heat-conducting support columns 421 are arranged at intervals on the surface of the heat-conducting area 411. The interaction between the multiple heat-conducting support columns 421 further reduces the deformation of the inserted heat-conducting sheet 10, and further increases the contact area between the heat-conducting support columns 421 and the heat-conducting medium 50, thereby improving the heat-conducting efficiency of the heat-conducting sheet 10. It should be noted that the number of heat-conducting support columns 421 can be adjusted at any time according to the actual area of ​​the heat-conducting area 411, and is not limited here. In this embodiment, the heat-conducting support columns 421 are evenly arranged in an array on the surface of the heat-conducting area 411. In other embodiments, the heat-conducting support columns 421 can be arranged at random intervals.

[0054] Furthermore, the thermally conductive support column 421 is integrally formed with the first metal layer 41 by etching, thereby improving the stability of the connection between the thermally conductive support column 421 and the first metal layer 41. In other embodiments, the fixed connection between the thermally conductive support column 421 and the first metal layer 41 can also be achieved by 3D printing, cold forging, or bonding.

[0055] Optionally, along the thickness direction of the first metal layer 41, a side of the first metal layer 41 facing away from the heat-conducting support member 42 is provided with a smooth surface 413 to facilitate insertion and removal of the thermal conductive sheet 10 and the insert 30. It should be noted that obtaining the smooth surface 413 by polishing the first metal layer 41 is a common technique used by those skilled in the art and will not be further described here.

[0056] Optionally, the packaging structure 60 includes a first adhesive layer 61. One side of the first adhesive layer 61 is fixed to the surface of the packaging area 412. On the one hand, the first adhesive layer 61 cooperates with the heat-conducting support member 42 to support the heat-conducting medium 50. On the other hand, after the heat-conducting sheet 10 is introduced between the heat transfer element 20 and the insert 30, it serves to fix the first metal layer 41. In this embodiment, the first adhesive layer 61 is double-sided tape. In other embodiments, the first adhesive layer 61 can also be solid glue or glue.

[0057] It should be noted that if Figure 5As shown, when the overall thickness of the thermal conductive sheet 10 is greater than 0.2 mm, the packaging structure 60 includes a second adhesive layer 62, a third adhesive layer 63, and a rubber layer 64. One side of the second adhesive layer 62 is fixed to the surface of the packaging area 412, and the rubber layer 64 is sandwiched between the other side of the second adhesive layer 62 and the third adhesive layer 63 to avoid the packaging structure 60 being too thin and failing to achieve the support effect. In this embodiment, the second adhesive layer 62 is double-sided tape. In other embodiments, the second adhesive layer 62 is glue or solid glue. In this embodiment, the third adhesive layer 63 is double-sided tape. In other embodiments, the third adhesive layer 63 is glue or solid glue. In this embodiment, the rubber layer 64 is foam. In other embodiments, the rubber layer 64 can be rubber or silicone.

[0058] Optionally, the thermal conductive sheet 10 further includes a protective structure 70, which includes a first protective layer 71 and a second protective layer 72. The first protective layer 71 is detachably connected to the smooth surface 413, and the second protective layer 72 is detachably connected to the side of the packaging structure 60 facing away from the smooth surface 413 along the thickness direction of the first metal layer 41. The first protective layer 71 can prevent the smooth surface 413 from being scratched and oxidized during production or transportation, resulting in poor appearance or poor performance, while the second protective layer 72 is to protect the first adhesive layer 61 and prevent the first adhesive layer 61 from being damaged. The provision of the first protective layer 71 and the second protective layer 72 ensures the integrity of the thermal conductive sheet 10 before plugging and unplugging, avoiding a smooth insertion process. It should be noted that the first protective layer 71 and the second protective layer 72 need to be torn off before inserting the thermal conductive sheet 10, which will not be repeated here. In other embodiments, the protective structure 70 includes a first protective layer 71, which is detachably connected to the smooth surface 413, or the protective structure 70 includes a second protective layer 72, which is detachably connected to the side of the packaging structure 60 facing away from the smooth surface 413 along the thickness direction of the first metal layer 41.

[0059] Furthermore, the protective structure 70 is made of plastic, which protects the smooth surface 413 and the first adhesive layer 61 while reducing the production cost of the thermal conductive sheet 10. In this embodiment, the first protective layer 71 is made of polypropylene. In other embodiments, the first protective layer 71 is made of polyethylene, polyvinyl chloride, or the like. In this embodiment, the second protective layer 72 is made of polypropylene. In other embodiments, the second protective layer 72 is made of polyethylene, polyvinyl chloride, or the like.

[0060] Example 2

[0061] This embodiment provides a pluggable heat conducting sheet 10 . The following mainly describes the differences between this embodiment and the first embodiment, and the similarities are not repeated here.

[0062] like Figures 6 and 7As shown, the metal outer support structure 40 includes a second metal layer 43. Along the thickness direction of the first metal layer 41, the second metal layer 43 is fixedly connected to the side of the thermally conductive support member 42 facing away from the first metal layer 41. The first metal layer 41 and the second metal layer 43 work together to further reduce the deformation of the first metal layer 41, thereby further reducing the deformation of the thermal conductive sheet 10 when inserted between the heat transfer element 20 and the insert 30. In this embodiment, the second metal layer 43 is a metal foil. In other embodiments, the second metal layer 43 may be a polymer plastic outer film, etc.

[0063] Furthermore, the packaging structure 60 includes a fourth adhesive layer 65, through which the second metal layer 43 is fixedly connected to the thermally conductive medium 50, thereby achieving a stable connection of the second metal layer 43. In this embodiment, the fourth metal layer is double-sided tape. In other embodiments, the fourth adhesive layer 65 can be solid glue or glue.

[0064] Furthermore, if Figure 8 As shown, a reserved area 414 is further provided on the surface of the first metal layer 41. The reserved area 414 is located at one end of the first metal layer 41 and the edge of the reserved area 414 abuts against the edge of the packaging area 412. By applying epoxy glue on the reserved area 414 and fixing it to the heat transfer element 20, the overall fixing performance of the heat conducting sheet 10 is increased during insertion.

[0065] Example 3

[0066] This embodiment provides a pluggable heat conducting sheet 10 . The following mainly describes the differences between this embodiment and the previous embodiment, and the similarities are not repeated here.

[0067] like Figures 9 and 10 As shown, the heat-conducting support member 42 is a heat-conducting support mesh 422, which is arranged parallel to the first metal layer 41, and the heat-conducting support mesh 422 is fixedly connected to the surface of the heat-conducting area 411 through a heat-conducting medium 50. The heat-conducting medium 50 wraps the heat-conducting support mesh 422, and the heat-conducting medium 50 is filled inside the mesh structure, further increasing the contact area between the heat-conducting support mesh 422 and the heat-conducting medium 50, thereby improving the heat conduction efficiency of the heat-conducting support mesh 422. In other embodiments, the heat-conducting support member 42 can also be a heat-conducting support sheet, which is arranged parallel to the first metal layer 41, and the heat-conducting support sheet is fixedly connected to the surface of the heat-conducting area 411 through the heat-conducting medium 50. It should be noted that the heat-conducting support mesh 422 provided in this embodiment is made of metal braiding. In other embodiments, the heat-conducting support mesh 422 can be made by metal welding or etching.

[0068] In other embodiments, Figure 11As shown, the metal outer support structure 40 further includes a second metal layer 43. Along the thickness direction of the first metal layer 41, the second metal layer 43 is fixedly connected to the side of the heat-conducting support member 42 facing away from the first metal layer 41. The first metal layer 41 and the second metal layer 43 work together to further reduce the deformation of the heat-conducting sheet 10 when inserted between the heat transfer element 20 and the insert 30. In this embodiment, the second metal layer 43 is a metal foil. In other embodiments, the second metal layer 43 may be a polymer plastic outer film, etc.

[0069] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A pluggable thermal conductive sheet, characterized in that: The heat conducting sheet (10) is inserted between the heat transfer element (20) and the insert (30), and the heat conducting sheet (10) comprises: A metal outer support structure (40), the metal outer support structure (40) comprising a first metal layer (41) and a heat-conducting support member (42), the heat-conducting support member (42) being fixedly connected to the first metal layer (41), a surface of the first metal layer (41) being provided with a heat-conducting area (411) and a packaging area (412), the heat-conducting area (411) being located in a central area of ​​the first metal layer (41), the packaging area (412) surrounding the heat-conducting area (411), the inner peripheral wall of the heat-conducting area (411) abutting against the outer peripheral wall of the packaging area (412), and the heat-conducting support member (42) being located within the heat-conducting area (411); a heat-conducting medium (50), the heat-conducting medium (50) being wrapped around the outer surface of the heat-conducting support member (42); A packaging structure (60) is fixedly connected to the surface of the packaging area (412), and the packaging structure (60) is wrapped around the outer surface of the heat-conducting medium (50).

2. The pluggable heat conducting sheet according to claim 1, characterized in that: The heat-conducting support member (42) is a heat-conducting support column (421), and one end of the heat-conducting support column (421) is fixedly connected to the surface of the heat-conducting area (411).

3. The pluggable heat conducting sheet according to claim 2, characterized in that: There are a plurality of heat-conducting support columns (421), and the plurality of heat-conducting support columns (421) are arranged at intervals on the surface of the heat-conducting area (411).

4. The pluggable heat conducting sheet according to claim 1, wherein: The heat-conducting support member (42) is a heat-conducting support net (422), the heat-conducting support net (422) is arranged in parallel with the first metal layer (41), and the heat-conducting support net (422) is fixedly connected to the surface of the heat-conducting area (411) via the heat-conducting medium (50); Alternatively, the heat-conducting support member (42) is a heat-conducting support plate, the heat-conducting support plate is arranged parallel to the first metal layer (41), and the heat-conducting support plate is fixedly connected to the surface of the heat-conducting area (411) via the heat-conducting medium (50).

5. The pluggable heat conducting sheet according to claim 1, wherein: Along the thickness direction of the first metal layer (41), a side of the first metal layer (41) facing away from the heat-conducting support member (42) is provided as a smooth surface (413).

6. The pluggable heat conducting sheet according to claim 5, characterized in that: The heat conducting sheet (10) further comprises a protective structure (70), wherein the protective structure (70) comprises a first protective layer (71), and the first protective layer (71) is detachably connected to the smooth surface (413); And / or, the protective structure (70) includes a second protective layer (72), and along the thickness direction of the first metal layer (41), the second protective layer (72) is detachably connected to a side of the packaging structure (60) facing away from the smooth surface (413).

7. The pluggable heat conducting sheet according to claim 6, characterized in that: The protective structure (70) is made of plastic.

8. The pluggable thermal conductive sheet according to any one of claims 1 to 7, characterized in that: The packaging structure (60) comprises a first adhesive layer (61), one side of the first adhesive layer (61) being fixed to the surface of the packaging area (412); Alternatively, the packaging structure (60) includes a second adhesive layer (62), a third adhesive layer (63) and a rubber layer (64), one side of the second adhesive layer (62) is fixed to the surface of the packaging area (412), and the rubber layer (64) is sandwiched between the other side of the second adhesive layer (62) and the third adhesive layer (63).

9. The pluggable thermal conductive sheet according to any one of claims 1 to 7, characterized in that: A reserved area (414) is further provided on the surface of the first metal layer (41), the reserved area (414) is located at one end of the first metal layer (41), and the edge of the reserved area (414) abuts against the edge of the packaging area (412).

10. The pluggable thermal conductive sheet according to any one of claims 1 to 7, characterized in that: The metal outer support structure (40) further comprises a second metal layer (43), and along the thickness direction of the first metal layer (41), the second metal layer (43) is fixedly connected to a side of the heat-conducting support member (42) facing away from the first metal layer (41).

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