Radiating device with strengthening structure

By riveting reinforcing plates and fixing components onto the vapor chamber to form a clamping space for combining heat pipes or fin assemblies, the problem of insufficient structural strength of the vapor chamber heat dissipation device is solved, achieving more stable component connection and more efficient heat exchange.

CN120955255APending Publication Date: 2025-11-14NIDEC CHAUN-CHOUNG TECH CORP
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Patent Information

Application Number
CN202510309579.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-05-14
Filing Date
2025-03-17
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

Existing vapor chamber heat dissipation devices have insufficient structural strength after assembly, making them prone to deformation or damage due to factors such as collisions, and the components are not easily connected.

Method used

The reinforcing plate and the heat spreader are combined by riveting. The reinforcing plate and the heat spreader are fixed by fixing components to form a clamping space to combine heat pipes or fin assemblies, thereby enhancing the structural strength and stabilizing the component connection.

Benefits of technology

The structural strength of the vapor chamber was improved, the connection of the components was stabilized, the bonding effect of the heat pipes or fins was enhanced, and the overall performance of the heat dissipation device was improved.

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Abstract

The invention relates to a heat dissipation device with a strengthening structure. The heat dissipation device comprises a uniform temperature plate, a strengthening piece and a plurality of fixing assemblies, the uniform temperature plate is provided with a heating surface and a combination surface, and a plurality of fixing holes distributed in the periphery of the uniform temperature plate are formed in the combination surface; the reinforcing piece is provided with a covering part and two side wings extending from the covering part, the covering part corresponds to the combination surface of the vapor chamber, and a plurality of penetrating holes corresponding to the fixing holes are formed in the side wings respectively; each fixing assembly is provided with a penetrating part, an end head located at one end of the penetrating part and a riveting part located at the other end of the penetrating part, the penetrating parts are arranged in the penetrating holes and the fixing holes in a penetrating mode, and the end heads protrude out of the fixing holes; wherein an annular embedding edge is arranged in each penetrating hole, an annular embedding groove corresponding to each annular embedding edge is formed in the outer side of each penetrating part, and each riveting part is embedded in each penetrating hole and located outside one side of each annular embedding edge.
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Description

Technical Field

[0001] This invention relates to a heat dissipation device, and more particularly to a heat dissipation device with a reinforced structure. Background Technology

[0002] Current vapor chamber cooling devices primarily rely on the vapor chamber itself for contact with the heat source. However, since vapor chambers often require components such as fins or heat pipes to achieve good condensation, current vapor chambers typically use welding to bond these components together.

[0003] However, although vapor chambers can be combined with other components through methods such as welding, their structural strength is often insufficient. After being welded together with other components, they are also prone to deformation or even damage due to factors such as collisions. Therefore, the structural strength of existing vapor chamber heat dissipation devices after assembly is still somewhat inadequate.

[0004] In view of this, the inventor, in order to improve and solve the above-mentioned deficiencies, has devoted himself to research and applied theoretical knowledge, and finally proposed an invention with a reasonable design that effectively improves the above-mentioned deficiencies. Summary of the Invention

[0005] The main objective of this invention is to provide a heat dissipation device with a reinforced structure, which is assembled with a heat exchange plate by means of a reinforcing plate, such as riveting. In addition to strengthening the structural strength of the heat exchange plate, it is also beneficial to further combine heat pipes or configure fin assemblies.

[0006] To achieve the above objectives, the present invention provides a heat dissipation device with a reinforced structure, comprising a heat spreader, a reinforcing member, and a plurality of fixing components; the heat spreader has a heated surface and a mating surface opposite to the heated surface, and the mating surface is provided with a plurality of fixing holes distributed around the periphery of the heat spreader; the reinforcing member has a covering portion and two side wings extending from the covering portion, the covering portion corresponding to the mating surface of the heat spreader, and each side wing is provided with a plurality of through holes corresponding to each fixing hole, and each through hole and each fixing hole are respectively stacked; each fixing component has an insertion portion, an end located at one end of the insertion portion, and a riveting portion located at the other end of the insertion portion, and each fixing component is inserted through the through holes and fixing holes with its insertion portion, and each end protruding outside the fixing holes; wherein, each through hole is provided with an annular flange, and each through portion is provided with an annular groove corresponding to each annular flange, and each riveting portion is embedded in each through hole and located outside one side of each annular flange. Attached Figure Description

[0007] Figure 1 This is an exploded perspective view of the present invention.

[0008] Figure 2This is a three-dimensional exploded view of the fin group added to this invention.

[0009] Figure 3 This is a three-dimensional schematic diagram of the fin assembly added to this invention.

[0010] Figure 4 This is a cross-sectional view of the combination of the temperature distribution plate and the reinforcing member of the present invention.

[0011] Figure 5 This is a partial cross-sectional view of the fixing component of the present invention.

[0012] In the attached figures, the following labels are used:

[0013] 1: Heat spreader

[0014] 10: Heating surface

[0015] 11: Mating surface

[0016] 12: Fixing hole

[0017] 2: Reinforcing components

[0018] 20: Covering section

[0019] 200: Bending section

[0020] 201: Block

[0021] 21: Flanking

[0022] 210: Through hole

[0023] 211: Annular border

[0024] 212: Outer circumference groove

[0025] 213: Inner circumference groove

[0026] 22: Interlocking Space

[0027] 3: Fixed components

[0028] 30: Penetration part

[0029] 300: Annular groove

[0030] 31: End

[0031] 32: Riveting part

[0032] 4: Heat pipe

[0033] 40: Heating section

[0034] 41: Condensation section

[0035] 5: Fin group

[0036] 50: Lower fin group

[0037] 51: Upper fin group Detailed Implementation

[0038] To further understand the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit the present invention.

[0039] Please see Figure 1 , Figure 2 and Figure 3 The figures shown are an exploded perspective view, an exploded perspective view of the device with added fins, and a perspective assembly view of the device. The present invention provides a heat dissipation device with a reinforced structure, comprising a heat spreader 1, a reinforcing member 2, and multiple fixing components 3; wherein:

[0040] like Figure 4 As shown, the heat exchange plate 1 has a heated surface 10 and a mating surface 11. The heated surface 10 is used to contact a heat source (not shown), while the mating surface 11 is opposite to the heated surface 10. A plurality of fixing holes 12 are provided on the mating surface 11, which are distributed around the periphery of the heat exchange plate 1. The fixing holes 12 are located on the sealing edge or ineffective area around the periphery of the heat exchange plate 1.

[0041] As described above, the reinforcing member 2 can be made by stamping a metal sheet, and the metal sheet can be made of high-carbon steel (such as SK7). The reinforcing member 2 has a cover portion 20 and two side wings 21 extending from the cover portion 20. The cover portion 20 corresponds to the mating surface 11 of the heat spreader 1, and each side wing 21 is provided with a plurality of through holes 210 corresponding to the fixing holes 12, so that each through hole 210 and each fixing hole 12 are respectively stacked.

[0042] like Figure 5As shown, the fixing components 3 are inserted between the through hole 210 and the fixing hole 12. Each fixing component 3 has an insertion portion 30, an end head 31 located at one end of the insertion portion 30, and a riveting portion 32 located at the other end of the insertion portion 30. Each fixing component 3 has its insertion portion 30 inserted into the insertion hole 210 and the fixing hole 12, so that the end head 31 protrudes out of the fixing hole 12. An annular flange 211 is provided in the insertion hole 210, and an annular groove 300 corresponding to the annular flange 211 is provided outside the insertion portion 30. The riveting portion 32 is embedded in the insertion hole 210 and located outside one side of the annular flange 211. Specifically, the insertion hole 210 has a recessed outer annular groove 212 formed outside one side of the annular flange 211. The riveting portion 32 can be embedded in the outer annular groove 212 and is not exposed outside the surface of the side wing 21. Meanwhile, a recessed inner annular groove 213 can be formed in one side of the through hole 210 within the annular flange 211, and the inner annular groove 213 can be used for positioning when the through part 30 is inserted.

[0043] To further explain: each of the above-mentioned fixing components 3 can be a rivet. Before it is inserted into the through hole 210 and the fixing hole 12, the riveting part 32 can have the same outer diameter as the through part 30 and extend an appropriate length from the other end of the through part. After the through part 30 is inserted into the fixing hole 12 and the riveting part 32 extends out from the through hole 210, the riveting part 32 extending out from the through hole 210 is riveted to embed the riveting part 32 into the above-mentioned outer ring groove 212.

[0044] In addition, please see Figure 1 and Figure 4 As shown, the present invention can further form a clamping space 22 by using the covering portion 20 of the aforementioned reinforcing member and its two side wings 21 together, so that multiple heat pipes 4 can be stacked side by side on the mating surface 11 of the heat spreader 1; wherein, the reinforcing member has a bending portion 200 between its covering portion 20 and the two side wings 21, so that the covering portion 20 and the two side wings 21 form a height difference, thereby forming the clamping space 22 below the covering portion 20. Furthermore, each heat pipe 4 may have a heated section 40 and a condensing section 41 integrally extended from the heated section 40, wherein the cross-section of the heated section 40 may be square or rectangular to be arranged side by side in the clamping space 22 between the covering portion 20 and the heat spreader 1, so that the reinforcing member 2 can be connected to the heat spreader 1 by multiple fixing components 3, so that the heated section 40 of the heat pipes 4 can be connected between the reinforcing member 2 and the heat spreader 1, as required for the heat transfer and heat exchange of the heat spreader 1. In addition, a baffle 201 may be provided on the other side of the covering part 20 where the condensing section 41 of each heat pipe 4 extends out, so as to cover the heated section 40 of each heat pipe 4.

[0045] For example Figure 2 and Figure 3 As shown, at least one fin group 5 can be added to the condensing section 41 of each heat pipe 4. In the embodiment of the present invention, the fin group 5 may include a lower fin group 50 and an upper fin group 51, so that the lower fin group 50 and the upper fin group 51 are sandwiched together on the condensing section 41 of each heat pipe 4, thereby helping to cool the condensing section 41 of each heat pipe 4, so as to assist the heat exchanger 1 in heat exchange.

[0046] Therefore, by means of the above-described structure, the heat dissipation device with reinforced structure of the present invention can be obtained.

[0047] In conclusion, this invention does indeed achieve the intended use described in the above specification and resolves known deficiencies, fully meeting the requirements for an invention patent application. Therefore, this application is filed in accordance with the Patent Act. We respectfully request a thorough review and the granting of this patent to protect the inventor's rights.

[0048] However, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the patent claims of the present invention. Therefore, all equivalent techniques and means made based on the description and drawings of the present invention are also included within the scope of the claims of the present invention and are hereby stated.

Claims

1. A heat dissipation device with a reinforced structure, comprising: A heat spreader plate has a heating surface and a mating surface opposite to the heating surface, and the mating surface is provided with a plurality of fixing holes distributed around the periphery of the heat spreader plate. A reinforcing member has a cover portion and two side wings extending from the cover portion. The cover portion corresponds to the mating surface of the heat spreader plate, and each of the side wings has a plurality of through holes corresponding to each of the fixing holes, with each through hole overlapping the fixing hole. Multiple fixing components each have an insertion portion, an end head located at one end of the insertion portion, and a riveting portion located at the other end of the insertion portion, and each fixing component is inserted through the insertion portion into each of the through holes and each of the fixing holes, and each of the end heads protrudes out of each of the fixing holes. Each of the through holes is provided with an annular flange, and each of the through parts is provided with an annular groove corresponding to each of the annular flanges. Each of the riveting parts is embedded in each of the through holes and located on one side of each of the annular flanges.

2. The heat dissipation device with a reinforced structure as described in claim 1, wherein the fixing hole is located on the sealing edge or ineffective area of ​​the periphery of the heat spreader.

3. The heat dissipation device with a reinforced structure as described in claim 1, wherein the reinforcing member is made by stamping a metal sheet.

4. The heat dissipation device with a reinforced structure as described in claim 3, wherein the metal plate is made of steel.

5. The heat dissipation device with a reinforced structure as claimed in claim 1, wherein each of the through holes has a recessed outer annular groove formed on one side of each of the annular flanges, and each of the riveted portions is embedded in each of the outer annular grooves.

6. The heat dissipation device with a reinforced structure as described in claim 1 or 5, wherein each of the through holes has a recessed inner annular groove formed on one side of each of the annular flanges.

7. The heat dissipation device with a reinforced structure as claimed in claim 1, wherein the cover portion of the reinforcing member and its two side wings together form a clamping space.

8. The heat dissipation device with reinforced structure as claimed in claim 7, further comprising a plurality of heat pipes, each heat pipe having a heated section and a condensing section integrally extending from the heated section, wherein the heated sections of each heat pipe are arranged side by side on the mating surface of the heat spreader and accommodated within the clamping space.

9. The heat dissipation device with a reinforced structure as claimed in claim 8, wherein the reinforcing member has a bent portion between the cover portion and the two side wings respectively.

10. The heat dissipation device with reinforced structure as claimed in claim 8 or 9, further comprising at least one fin assembly, wherein the fin assembly is disposed on the condensation section of each of the heat pipes.