Water-cooled heat sink

Abstract

The utility model provides a kind of water-cooled radiator, it includes shell, the water inlet pipe being arranged at the top of shell, the water outlet pipe being arranged at the both sides of shell, shell includes bottom plate and the shell body that is enclosed with bottom plate and forms receiving cavity, cooling liquid flows in from water inlet pipe, flows out from water outlet pipe, receiving cavity is equipped with fin, fin includes the first fin extending from bottom plate surface and the second fin extending from shell face and being located between adjacent first fin, first liquid passage is formed between first fin and second fin, support layer is equipped on first fin and / or the second fin, one end of support layer is connected fin, other end is connected to shell, second liquid passage is formed on support layer, at least two first liquid passages are communicated by second liquid passage.The water-cooled radiator provided by the utility model makes that cooling liquid is not single one-way flow in passage, but there is reciprocating motion up and down inside, frequently changes flow direction, greatly increases disturbance, improves product heat-dissipation power.

Description

[Technical Field] This utility model relates to the field of radiator technology, and in particular to a water-cooled radiator. [Background Technology] In computers, the central processing unit (CPU), which is the core of computing, and the graphics processing unit (GPU), which handles image processing, generate increasingly more heat. Water cooling radiators, as efficient heat dissipation solutions for CPUs and GPUs, are increasingly used in computer cases. Similarly, automotive equipment faces the problem of increasingly powerful components generating more heat, and water cooling radiators are also commonly used in automotive equipment for heat dissipation and cooling.

[0003] The basic structure of existing water-cooled plates consists of an upper substrate and a lower substrate. The upper substrate has an inlet pipe on its upper surface and an outlet pipe on its side. The upper and lower substrates enclose a cavity for coolant flow. Fins form channels within the cavity, through which the coolant cools the heat source, lowering its temperature. These channels are crucial for heat exchange. In commonly used water-cooled radiators, one end of the fins is connected to the upper substrate, and the other end to the lower substrate. This configuration restricts coolant movement to the channels between adjacent fins, resulting in a unidirectional flow. This channel structure easily forms boundary layers, affecting heat dissipation. Furthermore, as the fin density increases, the requirements for impurity content in the water become significantly higher.

[0004] Therefore, it is necessary to provide a new water-cooled radiator to solve the above-mentioned technical problems. [Utility Model Content] The purpose of this invention is to provide a water-cooled radiator with excellent heat dissipation performance and controllable size.

[0006] To achieve the above objectives, this utility model provides a water-cooled radiator, which includes a shell, an inlet pipe disposed on the top of the shell, and outlet pipes disposed on both sides of the shell. The shell includes a base plate and a housing that, together with the base plate, forms a receiving cavity. Coolant flows into the receiving cavity from the inlet pipe and flows out of the receiving cavity from the outlet pipe. Fins are provided in the receiving cavity. The fins include a plurality of first fins extending from the surface of the base plate into the receiving cavity and second fins extending from the surface of the housing facing the base plate and located between adjacent first fins. A first liquid channel is formed between the first fins and the second fins. A support layer is provided on the first fins and / or the second fins. One end of the support layer is connected to the fins, and the other end is connected to the shell. A second liquid channel is formed on the support layer, and at least two of the first liquid channels are connected through the second liquid channel.

[0007] Preferably, the support layer includes a plurality of spaced-apart support columns, one end of which is connected to the fins and the other end of which is connected to the outer shell, and a second liquid channel is formed between adjacent support columns.

[0008] Preferably, the support column and the fin are integrally formed from the same material.

[0009] Preferably, the outer shell, the support column, and the fins are integrally formed from at least one material selected from copper, aluminum, or stainless steel.

[0010] Preferably, the housing and the base plate are fixed by welding, or the water-cooled radiator is made by 3D printing technology.

[0011] Preferably, the ratio of the width of the second liquid channel to the width of the first liquid channel is in the range of 1-20.

[0012] Preferably, the ratio of the width of the first liquid channel to the thickness of the fin is in the range of 0.2-3, and the ratio of the thickness of the support column to the thickness of the fin is in the range of 0.2-3.

[0013] Preferably, the thickness of the support column is less than or equal to the thickness of the fin.

[0014] Preferably, the support layer has a plate-like structure and is made of a porous material in which the second liquid channel is formed.

[0015] Preferably, the support layer includes a plurality of spaced support columns, the support columns being made of porous material, and the second liquid channels are formed between adjacent support columns and inside the support columns, the ratio of the width of the second liquid channel to the width of the first liquid channel being in the range of 0.1-20.

[0016] Preferably, the thickness of the fins is 0.1-3 mm, and the width of the first liquid channel is 0.1-20 mm.

[0017] Compared with related technologies, this utility model provides a water-cooled radiator, which includes a shell, an inlet pipe disposed on the top of the shell, and outlet pipes disposed on both sides of the shell. The shell includes a base plate and a housing that, together with the base plate, forms a receiving cavity. Coolant flows into the receiving cavity from the inlet pipe and flows out of the receiving cavity from the outlet pipe. Fins are provided in the receiving cavity. The fins include a plurality of first fins extending from the surface of the base plate into the receiving cavity and second fins extending from the surface of the housing facing the base plate and located between adjacent first fins. A third fin is formed between the first fins and the second fins. A liquid channel is provided, with a support layer on the first fin and / or the second fin. One end of the support layer is connected to the fin, and the other end is connected to the outer shell. A second liquid channel is formed on the support layer. At least two first liquid channels are connected through the second liquid channel. Due to the arrangement of the fins and the support layer, the coolant does not flow in a single unidirectional direction within the liquid channel, but instead undergoes a reciprocating motion inside, frequently changing the flow direction. This significantly increases the turbulence of the coolant and improves the heat dissipation power of the product. At the same time, the reciprocating motion improves the space utilization rate in the height direction of the receiving cavity, effectively reducing the structural size of the product. [Attached Image Description] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural diagram of the water-cooled radiator according to the first embodiment of this utility model; Figure 2 For example Figure 1 Partial exploded view of the water-cooled radiator shown; Figure 3 For example Figure 1 A partially exploded view of the water-cooled radiator from another angle; Figure 4 For along Figure 1 Cross-sectional view of line AA in the middle; Figure 5 This is a cross-sectional view of the water-cooled radiator according to the second embodiment of this utility model.

Detailed Implementation Methods

[0020] Please also refer to Figure 1-4 The first embodiment of this utility model provides a water-cooled radiator 100. The water-cooled radiator 100 includes a housing 1 having a receiving cavity 10, a water inlet pipe 2 disposed on the top of the housing 1, and water outlet pipes 3 disposed on both sides of the housing 1. Coolant flows into the receiving cavity 10 from the water inlet pipe 2 and flows out of the receiving cavity 10 from the water outlet pipes 3. There are two water outlet pipes 3, which are symmetrically disposed on both sides of the housing 1.

[0021] The outer shell 1 includes a base plate 11 and a housing 12 that covers the base plate 11 to form the receiving cavity 10. The water inlet pipe 2 and the water outlet pipe 3 are both disposed on the housing 12. The base plate 11 contacts a heat source to dissipate heat from the heat source. The receiving cavity 10 is provided with fins 4. Each fin 4 includes a plurality of first fins 41 extending from the surface of the base plate 11 into the receiving cavity 10, and second fins 42 extending from the surface of the housing 12 facing the base plate 11 and located between adjacent first fins 41. A first liquid channel 5 is formed between the first fins 41 and the second fins 42. A support layer 6 is provided on the first fins 41 and / or the second fins 42. Preferably, the support layer 6 is provided on both the first fins 41 and the second fins 42. In other embodiments, the support layer 6 may be provided only on the first fins 41 of the base plate 11, or only on the second fins 42 of the housing 12. The width of the first liquid channel 5 directly opposite the water inlet pipe 2 is greater than the width of the other first liquid channels 5.

[0022] One end of the support layer 6 is connected to the fin 4, and the other end is connected to the outer shell 1. That is, the support layer 6 on the first fin 41 is connected to the top wall of the shell 12, and the support layer 6 on the second fin 42 is connected to the bottom plate 11. This allows for better heat dissipation. A second liquid channel 7 is formed on the support layer 6, and every two adjacent first liquid channels 5 are connected through the second liquid channel 7. With this configuration, the flow direction of the coolant in the water-cooled radiator 100 is no longer a single direction. The coolant can flow along the extension direction of the first liquid channel 5, and it can also flow back and forth in the vertical direction. The coolant in the entire receiving cavity 10 can flow continuously, frequently changing the flow direction. This greatly increases the turbulence of the coolant and improves the heat dissipation power of the product. At the same time, the vertical reciprocating movement improves the space utilization in the height direction of the receiving cavity and effectively reduces the structural size of the product.

[0023] like Figures 2 to 4 As shown, the first fin 41 and the second fin 42 are provided with the support layer 6. The support layer 6 includes a plurality of spaced-apart support columns 61. One end of each support column 61 is connected to the fin 4, and the other end is connected to the outer shell 1. A second liquid channel 7 is formed between adjacent support columns 61. The support columns 61 and the fin 4 are integrally formed from the same material. The outer shell 1, the support columns 61, and the fin 4 are integrally formed from at least one material selected from copper, aluminum, or stainless steel. The shell 12 and the base plate 11 are fixed by welding, or the water-cooled radiator is manufactured using 3D printing technology. The thickness of the fins 4 is 0.1-3mm, and the width of the first liquid channel is 0.1-20mm. If the width of the first liquid channel 5 is greater than this range, the width of the first liquid channel 5 is too large, which will cause the thermal conductivity of the fins 4 and the support column 61 to decrease, thereby affecting the heat dissipation effect of the water-cooled radiator. If the width of the first liquid channel 5 is less than this range, the width of the first liquid channel 5 is too small, which will cause the coolant flow resistance to increase, which will also affect the heat dissipation effect of the water-cooled radiator.

[0024] The ratio of the width of the first liquid channel 5 to the thickness of the fin 4 is in the range of 0.2-3, and the ratio of the thickness of the support column 61 to the thickness of the fin 4 is also in the range of 0.2-3. That is, when the thickness of the fin is 1mm, the width of the first liquid channel 5 is 0.2-3mm, and the thickness of the support column 61 is 0.2-3mm.

[0025] Preferably, the thickness of the support column 61 is less than or equal to the thickness of the fin 4, which makes the flow of coolant more flexible and the coolant between adjacent first liquid channels 5 can flow more easily.

[0026] The ratio of the width of the second liquid channel 7 to the width of the first liquid channel 5 is in the range of 1-20. Within this range, the flow rate of the coolant can meet the heat dissipation requirements. Beyond this range, the heat dissipation effect will be reduced.

[0027] Please see Figure 5 This is the second embodiment of the present invention. In the second embodiment, the support layer 6' is a plate-like structure and is made of a porous material. The second liquid channel is formed in the porous material. That is, due to the material properties of the porous material, the voids in the support layer 6' naturally form the second liquid channel.

[0028] Alternatively, the support layer 6' can also be like the first embodiment, forming the support column 61' structure. The support column 61' is made of a porous material, and the second liquid channel is formed between adjacent support columns 61' and inside the support column 61'. The ratio of the width of the second liquid channel to the width 5' of the first liquid channel ranges from 0.1 to 20. Since the support column 61' is made of a porous material in this embodiment, the density of the support column 61' can be set to be more dense.

[0029] Compared with related technologies, this utility model provides a water-cooled radiator, which includes a shell, an inlet pipe disposed on the top of the shell, and outlet pipes disposed on both sides of the shell. The shell includes a base plate and a housing that, together with the base plate, forms a receiving cavity. Coolant flows into the receiving cavity from the inlet pipe and flows out of the receiving cavity from the outlet pipe. Fins are provided in the receiving cavity. The fins include a plurality of first fins extending from the surface of the base plate into the receiving cavity and second fins extending from the surface of the housing facing the base plate and located between adjacent first fins. A third fin is formed between the first fins and the second fins. A liquid channel is provided, with a support layer on the first fin and / or the second fin. One end of the support layer is connected to the fin, and the other end is connected to the outer shell. A second liquid channel is formed on the support layer. At least two first liquid channels are connected through the second liquid channel. Due to the arrangement of the fins and the support layer, the coolant does not flow in a single unidirectional direction within the liquid channel, but instead undergoes a reciprocating motion inside, frequently changing the flow direction. This significantly increases the turbulence of the coolant and improves the heat dissipation power of the product. At the same time, the reciprocating motion improves the space utilization rate in the height direction of the receiving cavity, effectively reducing the structural size of the product.

[0030] The above description is merely an embodiment of this utility model. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this utility model, but these improvements all fall within the protection scope of this utility model.

Claims

1. A water-cooled radiator, comprising a housing, an inlet pipe disposed on the top of the housing, and outlet pipes disposed on both sides of the housing, the housing comprising a base plate and a shell forming a receiving cavity with the base plate, coolant flowing into the receiving cavity from the inlet pipe and flowing out of the receiving cavity from the outlet pipe, the receiving cavity being provided with fins, the fins comprising a plurality of first fins extending from the surface of the base plate into the receiving cavity and second fins extending from the surface of the shell facing the base plate and located between adjacent first fins, a first liquid channel forming between the first fins and the second fins, characterized in that: The first fin and / or the second fin are provided with a support layer, one end of the support layer is connected to the fin and the other end is connected to the outer shell, and a second liquid channel is formed on the support layer, and at least two of the first liquid channels are connected through the second liquid channel.

2. The water-cooled radiator according to claim 1, characterized in that, The support layer includes a plurality of spaced support columns, one end of which is connected to the fins and the other end of which is connected to the outer shell, and a second liquid channel is formed between adjacent support columns.

3. The water-cooled radiator according to claim 2, characterized in that, The support column and the fins are integrally molded from the same material.

4. The water-cooled radiator according to claim 3, characterized in that, The outer shell, the support column, and the fins are integrally formed from at least one material selected from copper, aluminum, or stainless steel.

5. The water-cooled radiator according to claim 3, characterized in that, The housing is fixed to the base plate by welding, or the water-cooled radiator is made by 3D printing technology.

6. The water-cooled radiator according to claim 2, characterized in that, The ratio of the width of the second liquid channel to the width of the first liquid channel ranges from 1 to 20.

7. The water-cooled radiator according to claim 2, characterized in that, The ratio of the width of the first liquid channel to the thickness of the fin is in the range of 0.2-3, and the ratio of the thickness of the support column to the thickness of the fin is in the range of 0.2-3.

8. The water-cooled radiator according to claim 2, characterized in that, The thickness of the support column is less than or equal to the thickness of the fin.

9. The water-cooled radiator according to claim 1, characterized in that, The support layer has a plate-like structure and is made of a porous material in which the second liquid channel is formed.

10. The water-cooled radiator according to claim 9, characterized in that, The support layer includes a plurality of spaced support columns, which are made of porous material. The second liquid channel is formed between adjacent support columns and inside the support columns. The ratio of the width of the second liquid channel to the width of the first liquid channel ranges from 0.1 to 20.

11. The water-cooled radiator according to claim 1, characterized in that, The thickness of the fins is 0.1-3mm, and the width of the first liquid channel is 0.1-20mm.

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