Cooling fin and liquid cooling radiator

Abstract

The utility model provides a cooling fin and a liquid cooling radiator. The cooling fin provided by the utility model is formed by sequentially connecting a plurality of folding fins, the folding fins comprise reinforcing fins, the reinforcing fins are provided with cheek pieces, and the cheek pieces protrude out of the surfaces of the reinforcing fins. The utility model further provides a liquid cooling radiator, the liquid cooling radiator comprises a first liquid tank, a second liquid tank and a heat dissipation assembly arranged between the first liquid tank and the second liquid tank, the heat dissipation assembly comprises a plurality of liquid passing flat pipes communicated with the first liquid tank and the second liquid tank and the cooling fins, and the cooling fins are arranged between the two liquid passing flat pipes. According to the cooling fin, the reinforcing piece with the cheek piece is arranged, so that the cooling effect can be improved. According to the liquid cooling radiator, the improved cooling fins are adopted, and compared with a traditional radiator, the heat dissipation efficiency of the unit area of the heat dissipation component can be improved.

Description

Technical Field

[0001] This application relates to the technical field of computer cooling devices, and particularly to an improved heat sink and a liquid-cooled radiator having the heat sink. Background Art

[0002] With the continuous improvement of the performance of computers and servers, the power consumption and heat generation of core hardware such as processors and graphics cards have also increased significantly. Therefore, the efficiency of the cooling system is directly related to the stability and performance of computers and servers. Existing radiators mainly adopt two methods: air cooling and liquid cooling.

[0003] Air-cooled radiators rely on fans to take away heat from the heat sink, and have the advantages of simple structure and low cost. However, in a high-heat environment, their heat dissipation efficiency is limited, and the fan noise is relatively large. Liquid-cooled radiators dissipate heat through the circulation of coolant, which has higher heat dissipation efficiency and lower noise than air cooling, and is suitable for high-performance computers and servers. However, in the existing designs of liquid-cooled radiators, there is still much room for improvement in the structure and layout of the heat sink to further improve the heat dissipation efficiency and optimize the volume of the radiator.

[0004] The common heat sink designs in existing liquid-cooled radiators are mostly simple flat or folded sheet structures. This design has approached its bottleneck in terms of heat dissipation effect. Especially when it is necessary to further improve the heat dissipation efficiency, simply increasing the number or size of the heat sinks will cause the overall volume of the radiator to increase, which is not conducive to the use of small computer cases. Therefore, there is an urgent need for a heat sink structure and a liquid-cooled radiator that can significantly improve the heat dissipation efficiency within a limited volume. Utility Model Content

[0005] To overcome the defects of the above-mentioned existing technologies, this application provides an improved heat sink and a liquid-cooled radiator. Through innovative designs, the heat dissipation effect is improved, and at the same time, the volume of the radiator is kept moderate, which is suitable for small computer cases.

[0006] To achieve the above object, this application provides a heat sink, which is formed by sequentially connecting a plurality of folded sheets. The folded sheet includes a reinforcing sheet, and the reinforcing sheet is provided with gill fins that protrude from the surface of the reinforcing sheet.

[0007] By setting the gill fins, the specific surface area of the heat sink can be increased, and the heat dissipation effect can be significantly improved.

[0008] In an alternative implementation, ventilation holes are formed between the gill fins and the reinforcing sheet.

[0009] By setting the ventilation holes, the circulation of the heat dissipation air flow can be further optimized, and the heat dissipation efficiency can be improved.

[0010] In an alternative implementation, the number of gill fins provided on each reinforcing sheet is one or more.

[0011] In addition, the present application also provides a liquid-cooled radiator, which includes a first liquid tank, a second liquid tank, and a heat dissipation component disposed between the first liquid tank and the second liquid tank. The heat dissipation component includes a plurality of liquid-passing flat tubes connecting the first liquid tank and the second liquid tank, and the above-mentioned heat sink fins, and the heat sink fins are disposed between two liquid-passing flat tubes.

[0012] In an alternative implementation, a partition is provided in the first liquid tank, and the partition divides the interior of the first liquid tank into a first liquid chamber and a third liquid chamber. A second liquid chamber is provided in the second liquid tank. One end of the liquid-passing flat tube is communicated with the first liquid chamber or the third liquid chamber, and the other end of the liquid-passing flat tube is communicated with the second liquid chamber.

[0013] According to the technical solutions provided by the foregoing implementation, the technical solutions of the present application have at least the following advantages:

[0014] The heat sink fins of the present application can improve the heat dissipation effect by providing reinforcing fins with gill fins. By providing ventilation holes between the gill fins and the reinforcing fins, air flow can pass through, accelerating heat diffusion and improving the heat dissipation efficiency. By adopting the improved heat sink fins, the liquid-cooled radiator of the present application can improve the heat dissipation efficiency per unit area of the heat dissipation component compared with the traditional radiator, and greatly improve the heat dissipation effect on the premise of ensuring the overall size of the liquid-cooled radiator. It is especially suitable for small computer cases and solves the contradiction between the heat dissipation effect and the heat dissipation volume in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a schematic structural diagram of the heat sink fins provided in Embodiment 1 of the present application;

[0017] Figure 2 is a schematic structural diagram of the heat sink fins provided in Embodiment 2 of the present application;

[0018] Figure 3 is Figure 3 an enlarged view of part A in

[0019] Figure 4 is a partial side view of the reinforcing fin in Embodiment 1 of the present application;

[0020] Figure 5 is a schematic structural diagram of the liquid-cooled radiator provided in Embodiment 3 of the present application;

[0021] Figure 6Explosion view of the liquid cooling radiator provided in Embodiment 3 of the present application;

[0022] Figure 7 Cross-sectional view of the liquid cooling radiator provided in Embodiment 3 of the present application, in which the heat sink is omitted.

[0023] Figure 8 For Figure 5 Enlarged view of part B in

[0024] Figure 9 For Figure 6 Enlarged view of part C in

[0025] Figure 10 Structural schematic diagram of the inner plate in Embodiment 3.

[0026] Explanation of reference numerals:

[0027] 10, heat sink; 11, light sheet; 12, reinforcing sheet; 13, gill sheet; 14, ventilation hole;

[0028] 21, first liquid tank; 22, second liquid tank; 23, heat dissipation component; 24, liquid passing flat tube; 25, partition board; 211, first liquid containing chamber; 212, third liquid containing chamber; 221, second liquid containing chamber; 213, liquid inlet hole; 214, liquid inlet nozzle; 215, liquid outlet hole; 216, liquid outlet nozzle; 26, first outer plate; 27, second outer plate; 28, plug plate; 281, liquid discharge hole; 282, liquid discharge plug; 29, inner plate; 291, limit groove. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0030] In this article, terms such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0031] In addition, in this text, orientation terms such as "upper" and "lower" are defined relative to the orientation shown in the structural schematic diagram of the attached drawings. It should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and they can change accordingly with the change of the orientation where the structure is placed.

[0032] Please refer to Figures 1 to 4 , this application provides a heat sink 10, which can be used in liquid-cooled radiators and air-cooled radiators.

[0033] Specifically, the heat sink 10 is formed by sequentially connecting a plurality of folded sheets. The folded sheets include reinforcing sheets 12, and the reinforcing sheets 12 are provided with gill fins 13, and the gill fins 13 protrude from the surface of the reinforcing sheets 12.

[0034] In this application, the gill fins 13 are used to increase the specific surface area of the heat sink 10, thereby significantly enhancing the heat dissipation effect.

[0035] Embodiment 1

[0036] In this embodiment, the folded sheets include a plurality of reinforcing sheets 12 and a plurality of plain sheets 11 without gill fins 13. Among them, the reinforcing sheets 12 and the plain sheets 11 can have the same size.

[0037] In order to improve the uniform heat dissipation effect, the reinforcing sheets 12 and the plain sheets 11 can be alternately connected to form the heat sink 10.

[0038] Specifically, the reinforcing sheets 12 and the plain sheets 11 can be alternately connected to form a "W" shape to have a larger unit heat dissipation area.

[0039] In this application, a ventilation hole 14 is formed between the gill fins 13 and the reinforcing sheets 12. The setting of the ventilation hole 14 helps the heat dissipation air flow to pass through to improve the heat dissipation of the heat sink 10.

[0040] In this embodiment, as shown in Figure 4 , the gill fins 13 are formed by locally stamping the reinforcing sheets 12, and the ventilation holes 14 communicate the two side surfaces of the reinforcing sheets 12.

[0041] Specifically, the heat sink 10 generally uses a thin aluminum sheet or other thin metal materials, which usually have the characteristics of light weight, easy processing, and high thermal conductivity. By locally stamping the surface of the reinforcing sheet 12, the gill fins 13 and the ventilation holes 14 are formed, and the processing technology is simple.

[0042] In this application, the number of gill fins 13 provided on each reinforcing sheet 12 can be 1 or multiple.

[0043] As shown in Figure 1As shown, in this embodiment, the number of gill fins 13 provided on the reinforcing sheet 12 is multiple, and the gill fins 13 are arranged on the surface of the reinforcing sheet 12. Through the multiple arranged gill fins 13, the heat dissipation effect can be significantly improved.

[0044] In other embodiments, the number of gill fins 13 provided on the reinforcing sheet 12 can be one. When the number of gill fins 13 is one, it has a better heat dissipation effect compared to the smooth sheet 11, and the structural strength of the heat sink 10 is not affected.

[0045] Embodiment 2

[0046] Combined with Figure 2 and Figure 3 As shown, in another embodiment, the folding sheets are all composed of the reinforcing sheets 12. Specifically, the reinforcing sheets 12 are alternately connected to form a "W" shape.

[0047] In each reinforcing sheet 12, gill fins 13 are provided.

[0048] And in this embodiment, multiple gill fins 13 are arranged on each reinforcing sheet 12, and a ventilation hole 14 is provided between each gill fin 13 and the reinforcing sheet 12 to significantly improve the heat dissipation effect.

[0049] Combined with Figures 5 to 10 As shown, the present application also provides a liquid-cooled radiator, which includes a first liquid tank 21 and a second liquid tank 22, and a heat dissipation component 23 provided between the first liquid tank 21 and the second liquid tank 22. The heat dissipation component 23 includes a plurality of liquid-passing flat tubes 24 connecting the first liquid tank 21 and the second liquid tank 22, and the above-mentioned heat sink 10, and the heat sink 10 is arranged between the two liquid-passing flat tubes 24.

[0050] Embodiment 3

[0051] Combined with Figure 5 and Figure 6 As shown, in this embodiment, a liquid-cooled radiator is provided, which includes a first liquid tank 21 and a second liquid tank 22, and a heat dissipation component 23 provided between the first liquid tank 21 and the second liquid tank 22. The heat dissipation component 23 includes a plurality of liquid-passing flat tubes 24 connecting the first liquid tank 21 and the second liquid tank 22, and the heat sink 10 of the above-mentioned Embodiment 1 and / or Embodiment 2, and the heat sink 10 is arranged between the two liquid-passing flat tubes 24.

[0052] Combined with Figure 6 and Figure 7 As shown, in this embodiment, a partition 25 is provided in the first liquid tank 21. The partition 25 divides the interior of the first liquid tank 21 into a first liquid chamber 211 and a third liquid chamber 212. A second liquid chamber 221 is provided in the second liquid tank. One end of the liquid-passing flat tube 24 is connected to the first liquid chamber 211 or the third liquid chamber 212, and the other end of the liquid-passing flat tube 24 is connected to the second liquid chamber 221.

[0053] Combined with Figure 5 and Figure 6 In this embodiment, the first liquid tank 21 is provided with a liquid inlet hole 213 communicating with the first liquid storage chamber 211, and a liquid inlet nozzle 214 is arranged at the liquid inlet hole 213; the first liquid tank 21 is provided with a liquid outlet hole 215 communicating with the third liquid storage chamber 212, and a liquid outlet nozzle 216 is arranged at the liquid outlet hole 215.

[0054] During use, the coolant enters the first liquid chamber through the liquid inlet nozzle 214. The coolant in the first liquid chamber flows to the second liquid storage chamber 221 through the communicating liquid passing flat tube 24. At this time, the heat dissipation assembly 23 exchanges heat with the coolant in the liquid passing flat tube 24, and then performs the first heat dissipation through the heat sink 10; the coolant that has undergone the first heat dissipation flows into the second liquid storage chamber 221 from the liquid passing flat tube 24, and then the coolant in the second liquid storage chamber 221 flows to the third liquid storage chamber 212 through the liquid passing flat tube 24 communicating therewith. At this time, the heat dissipation assembly 23 performs the second heat dissipation on the coolant in the liquid passing flat tube 24; the coolant flowing from the second liquid storage chamber 221 into the third liquid storage chamber 212 flows out from the liquid outlet nozzle 216 under the action of a driving mechanism such as a water pump.

[0055] Combined with Figure 9 As shown, in this embodiment, heat sinks 10 are closely arranged between two adjacent liquid passing flat tubes 24. The heat sinks 10 absorb the heat of the coolant in the liquid passing flat tubes 24 through heat conduction and dissipate the heat through air flow and the like.

[0056] Combined with Figures 5 to 7 As shown, the liquid cooling radiator further includes a first outer plate 26 and a second outer plate 27. The first outer plate 26 and the second outer plate 27 are arranged oppositely and are respectively arranged on both sides of the heat dissipation assembly 23.

[0057] The first outer plate 26 and the second outer plate 27 play the role of fixing and limiting the heat dissipation assembly 23, and cooperate with the first liquid tank 21 and the second liquid tank 22 to form a basket-shaped structure to accommodate and fix the heat dissipation assembly 23 inside.

[0058] In one embodiment, the first liquid tank 21 and the second liquid tank 22 are closed box structures, and their two ends are sealed to accommodate the coolant.

[0059] In this embodiment, both ends of the first liquid tank 21 and the second liquid tank 22 are open structures. Plug plates 28 are provided at both ends of the first outer plate 26 and the second outer plate 27. The shape of the plug plate 28 matches the openings at both ends of the first liquid tank 21 and the second liquid tank 22. The first outer plate 26 and the second outer plate 27 respectively block the openings at both ends of the first liquid tank 21 and the second liquid tank 22 to form a closed box for containing the coolant. By blocking the first liquid tank 21 and the second liquid tank 22 with the first outer plate 26 and the second outer plate 27, the connection firmness between the first outer plate 26 and the second outer plate 27 and the first liquid tank 21 and the second liquid tank 22 can be improved, and the stability of the overall structure is enhanced.

[0060] In this application, a drain hole 281 is provided in one of the plug plates 28, and a drain plug 282 is provided in the drain hole 281. When in normal use, the drain plug 282 blocks the drain hole 281; when liquid injection or drainage is required, the drain plug 282 can be opened, and the coolant can be injected or discharged through the drain hole 281.

[0061] Combined with Figures 5 to 7 As shown, in this embodiment, the drain hole 281 is provided in the plug plate 28 of the first outer plate 26 connected to the first liquid tank 21. In other embodiments, the drain hole 281 can be provided in other plug plates 28.

[0062] Combined with Figure 6 and Figure 10 As shown, in this embodiment, the liquid-cooled radiator further includes two inner side plates 29. One inner side plate 29 is disposed between the first outer plate 26 and the heat dissipation component 23, and the other inner side plate 29 is disposed between the second outer plate 27 and the heat dissipation component 23; the inner side plate 29 is provided with a limiting groove 291, and the limiting groove 291 is coupled with the heat dissipation component 23. By providing the inner side plate 29, the heat dissipation component 23 can be better positioned. The outer side of the heat dissipation component 23 can be accommodated in the limiting groove 291, avoiding loosening of the heat dissipation component 23.

[0063] The above has introduced in detail the heat sink and the liquid-cooled radiator provided by the embodiments of the present application, and specific embodiments are used to explain the principle and implementation manner of the present application. The above description is only used to help understand the method and its core mechanism of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific embodiments and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A heat sink, characterized in that: The heat sink is formed by sequentially connecting a plurality of fins. The fin includes a reinforcing fin, and the reinforcing fin is provided with gill fins. The gill fins protrude from the surface of the reinforcing fin, and ventilation holes are formed between the gill fins and the reinforcing fin.

2. The heat sink according to claim 1, wherein: The number of gill fins provided on each reinforcing fin is one or more.

3. The heat sink according to claim 1, wherein: The gill fins are formed by local stamping of the reinforcing fin, and the ventilation holes communicate with the two side surfaces of the reinforcing fin.

4. The heat sink according to claim 2, wherein: There are a plurality of the gill fins, and the gill fins are arranged on the reinforcing fin.

5. A liquid-cooled radiator, characterized in that, The liquid-cooled radiator includes a first liquid tank and a second liquid tank, and a heat dissipation assembly disposed between the first liquid tank and the second liquid tank. The heat dissipation assembly includes a plurality of liquid-passing flat tubes communicating the first liquid tank and the second liquid tank, and a heat sink according to any one of claims 1-4. The heat sink is disposed between the two liquid-passing flat tubes.

6. The liquid cooling radiator according to claim 5, wherein: A partition is provided in the first liquid tank. The partition divides the interior of the first liquid tank into a first liquid chamber and a third liquid chamber. A second liquid chamber is provided in the second liquid tank. One end of the liquid-passing flat tube communicates with the first liquid chamber or the third liquid chamber, and the other end of the liquid-passing flat tube communicates with the second liquid chamber.

7. The liquid-cooled radiator according to claim 6, wherein: The first liquid tank is provided with a liquid inlet hole communicating with the first liquid chamber, and a liquid inlet nozzle is provided at the liquid inlet hole; the first liquid tank is provided with a liquid outlet hole communicating with the third liquid chamber, and a liquid outlet nozzle is provided at the liquid outlet hole.

8. The liquid cooling radiator according to claim 5, characterized in that: The liquid-cooled radiator further includes a first outer plate and a second outer plate. The first outer plate and the second outer plate are oppositely arranged and are respectively disposed on both sides of the heat dissipation assembly.

9. The liquid-cooled radiator according to claim 8, wherein: The liquid-cooled radiator further includes two inner side plates. One of the inner side plates is disposed between the first outer plate and the heat dissipation assembly, and the other inner side plate is disposed between the second outer plate and the heat dissipation assembly; the inner side plate is provided with a limiting groove, and the limiting groove is coupled with the heat dissipation assembly.

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