Flow guide structure of liquid cooling plate and liquid cooling plate

Abstract

The utility model discloses a kind of flow guide structure and liquid cooling plate of liquid cooling plate, comprising: cooling liquid passage being arranged in liquid cooling plate, several flow guide fins are arranged in the cooling liquid passage, each flow guide fin is arranged along the cooling liquid flow direction of the cooling liquid passage, the upper and lower ends of the flow guide fin respectively abut on the upper and lower two inner walls of the liquid cooling plate, the cooling liquid passage is arranged between adjacent two flow guide fins, the flow guide hole is arranged on the flow guide fin and is connected with the cooling liquid passage on both sides, the flow guide fin is sequentially connected with first arc-shaped turbulence section and second arc-shaped turbulence section, and several first arc-shaped turbulence sections and second arc-shaped turbulence sections are sequentially and repeatedly connected to form several bending turbulence parts;The utility model improves the flowability of cooling liquid, so that the heat conduction efficiency of cooling liquid is higher, and cooling liquid can realize more efficient heat conduction flow.

Description

Technical Field

[0001] This utility model relates to the field of server technology, specifically to a flow guiding structure for a liquid cooling plate and the liquid cooling plate itself. Background Technology

[0002] For high-power, high-heat-generating electronic devices such as GPUs (Graphics Processing Units), a cooling plate is usually required to ensure their normal and stable operation. As GPU power consumption continues to rise, efficient heat dissipation solutions have become crucial. Current GPU heat dissipation methods typically employ air cooling or liquid cooling. Traditional air cooling solutions are limited by the low specific heat capacity and thermal conductivity of air, making it difficult to meet the heat dissipation requirements of high-end GPUs. Therefore, liquid cooling has become the mainstream heat dissipation method for GPUs. Liquid cooling mainly achieves heat conduction through the circulation of coolant. For example, in patent document CN115509329A, multiple liquid cooling pipes are deployed in the upper empty space of the GPU module to optimize the liquid cooling structure.

[0003] Therefore, although the aforementioned patent documents use liquid cooling pipes to guide and dissipate heat from the coolant, it is difficult to improve the fluidity of the coolant, the heat transfer efficiency of the coolant is low, and the coolant cannot achieve more efficient heat conduction flow. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to provide a flow guiding structure for a liquid-cooled plate, comprising:

[0005] A coolant channel is disposed within a liquid cooling plate. Several guide fins are disposed within the coolant channel, each guide fin positioned along the coolant flow direction of the coolant channel. The upper and lower ends of the guide fins abut against the upper and lower inner walls of the liquid cooling plate, respectively. A coolant channel is disposed between two adjacent guide fins. A guide hole is disposed on the guide fin connecting the coolant channels on both sides. The guide fin is provided with a first arc-shaped turbulence section and a second arc-shaped turbulence section connected in sequence. Several first arc-shaped turbulence sections and second arc-shaped turbulence sections are sequentially and repeatedly connected to form several bent turbulence sections.

[0006] Preferably, the spacing between two adjacent guide fins is 1mm-5.5mm.

[0007] Preferably, the thickness of the guide fins is 0.2mm-2mm.

[0008] Preferably, each of the guide fins is provided with a guide hole, and the guide holes are all located on the first arc-shaped turbulence section or the second arc-shaped turbulence section. The guide holes on all the guide fins are on the same straight line in the lateral direction, and the coolant channels are interconnected.

[0009] Preferably, each of the flow guide fins has a plurality of flow guide holes, which are spaced apart along the length of the flow guide fin.

[0010] Preferably, both ends of the plurality of the guide fins are configured as either closed or open structures.

[0011] Preferably, a plurality of the first arc-shaped turbulence segments and the second arc-shaped turbulence segments are connected sequentially and repeatedly to form a wave shape, and the bending turbulence section is the connection point between the crest and trough of the wave.

[0012] The second objective of this utility model is to provide a liquid-cooled plate, comprising:

[0013] As described above, the flow guiding structure;

[0014] The liquid cooling plate has a first heat-conducting chamber and a second heat-conducting chamber separated along the height direction. The first heat-conducting chamber and the second heat-conducting chamber are interconnected, and the first heat-conducting chamber is located above the second heat-conducting chamber. A plurality of the flow-guiding fins are respectively disposed in the first heat-conducting chamber and the second heat-conducting chamber.

[0015] Preferably, a conductive space is formed at the connection between the first heat-conducting chamber and the second heat-conducting chamber. The conductive space is provided with a plurality of first arc-shaped turbulence segments or a plurality of second arc-shaped turbulence segments, and the height of the first arc-shaped turbulence segment or the second arc-shaped turbulence segment is less than the height of the conductive space.

[0016] Preferably, a plurality of the flow guide fins are separated by the first heat conduction chamber and the second heat conduction chamber to form at least two flow guide sections, and the at least two flow guide sections of each flow guide fin correspond one-to-one in the height direction.

[0017] The above-described solution of this utility model has at least the following beneficial effects:

[0018] The flow guiding structure of the liquid cooling plate provided by this utility model can disperse the coolant into each coolant channel through several flow guiding fins when the coolant is transported in. It can also increase the flow and heat dissipation area of ​​the coolant in the coolant channel through several first arc-shaped flow guiding sections and second arc-shaped flow guiding sections, thereby improving the fluidity of the coolant and making the heat transfer efficiency of the coolant higher, so that the coolant can achieve more efficient heat conduction flow.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the flow guiding structure of the liquid cooling plate provided in this embodiment of the utility model;

[0022] Figure 2 This is another schematic diagram of the flow guiding structure of the liquid cooling plate provided in this embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the guide fins provided in the embodiments of this utility model;

[0024] Figure 4 This is a cross-sectional view of the flow guiding structure of the liquid cooling plate provided in the embodiment of this utility model;

[0025] Explanation of icon numbers:

[0026] 10. Guide fins; 11. First arc-shaped turbulence section; 12. Second arc-shaped turbulence section; 13. Bending turbulence section; 101. Coolant channel; 102. Guide hole; 103. Guide section; 20. Liquid cooling plate; 201. First heat conduction chamber; 202. Second heat conduction chamber; 203. Conducting space.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The flow guiding structure and liquid cooling plate of the present invention are described in detail below with reference to the accompanying drawings.

[0034] like Figures 1 to 3As shown, the flow guiding structure of the liquid cooling plate provided in this embodiment of the present invention is mainly used for GPU heat dissipation. It includes: a coolant channel 101 disposed in the liquid cooling plate 20, a plurality of flow guiding fins 10 disposed in the coolant channel 101, each flow guiding fin 10 being disposed along the coolant flow direction of the coolant channel 101, the upper and lower ends of the flow guiding fin 10 respectively abutting against the upper and lower inner walls of the liquid cooling plate 20, a coolant channel 101 disposed between two adjacent flow guiding fins 10, a flow guiding hole 102 disposed on the flow guiding fin 10 connecting the coolant channels 101 on both sides, and the flow guiding fin 10 being provided with a first arc-shaped turbulence section 11 and a second arc-shaped turbulence section 12 connected in sequence, a plurality of first arc-shaped turbulence sections 11 and second arc-shaped turbulence sections 12 being connected in sequence and repeatedly to form a plurality of bent turbulence sections 13.

[0035] As a preferred method, such as Figure 3 As shown, each guide fin 10 is provided with a first arc-shaped spoiler section 11 and a second arc-shaped spoiler section 12 connected sequentially along its own length direction, so that the first arc-shaped spoiler section 11 and the second arc-shaped spoiler section 12 are repeatedly connected to form a regular undulating structure. The regular undulating structure means a structure with periodic undulating changes, such as a V-shaped undulating structure, a wave-shaped undulating structure, a U-shaped undulating structure, etc. More preferably, several first arc-shaped spoiler sections 11 and second arc-shaped spoiler sections 12 are connected sequentially and repeatedly to form a wave shape, and the bent spoiler section 13 is the connection between the crest and trough of the wave. The height difference between the crest and trough can be 3mm-10mm. Figure 3 As shown, when the coolant flows through the first arc-shaped turbulence section 11 and the second arc-shaped turbulence section 12 in sequence, the flow speed and flow direction of the coolant can be changed by the first arc-shaped turbulence section 11 and the second arc-shaped turbulence section 12, so that the coolant can flow along the bending direction of the coolant channel 101, which increases the contact area between the coolant and the first arc-shaped turbulence section 11 and the second arc-shaped turbulence section 12, and improves the heat transfer capacity of the liquid cooling plate 20.

[0036] Optionally, each guide fin 10 can also adopt an irregular undulating structure, such as an irregular concave-convex structure. By setting the guide fin 10 to an undulating structure, the heat dissipation area of ​​the guide fin 10 is larger, and when the coolant enters the coolant channel 101, the undulating structure can make the coolant flow better, so that the coolant and the guide fin 10 can fully contact each other, and the flow guiding efficiency is higher.

[0037] like Figure 3As shown, the spacing L1 between two adjacent guide fins 10 is 1mm-5.5mm, and the thickness L2 of the guide fin 10 is 0.2mm-2mm. The spacing L1 between the guide fins 10 determines the width of the coolant channel 101. The smaller the spacing L1 between the guide fins 10, the higher the density of the several guide fins 10. The larger the spacing L1 between the guide fins 10, the lower the density of the several guide fins 10. The spacing L1 and thickness L2 of the guide fins 10 should meet the requirement of high coolant flowability while maximizing the density of the several guide fins 10. For example, the spacing L1 between two adjacent guide fins 10 can be 3.5mm, and the thickness L2 of the guide fin 10 can be 1mm. The dimensions of the spacing L1 and thickness L2 mentioned above are only examples and are not limited here.

[0038] like Figure 1 As shown, each guide fin 10 is provided with a guide hole 102, and the guide holes 102 are all located on the first arc-shaped turbulence section 11 or the second arc-shaped turbulence section 12. Furthermore, the guide holes 102 on all guide fins 10 are aligned on the same straight line in the transverse direction, connecting each coolant channel 101 to the others. When the coolant flows to each coolant channel 101, the coolant can be quickly transferred to each coolant channel 101 through each guide hole 102, resulting in better flow of the coolant within each coolant channel 101. More preferably, each... The guide fin 10 has multiple guide holes 102, which are spaced apart along the length of the guide fin 10. Each guide hole 102 on each guide fin 10 can be located on the same straight line, so that the coolant can flow better between the coolant channels 101 and the heat transfer efficiency is higher. Optionally, the shape of the guide holes 102 can be rectangular, circular, elliptical, etc., and the multiple guide holes 102 can be located at the edge of the guide fin 10 or at the center of the guide fin 10.

[0039] Combination Figure 1 and Figure 4 As shown, both ends of several guide fins 10 are constructed as either closed or open structures. When both ends of several guide fins 10 are closed, coolant can be pre-stored in each coolant channel 101, thereby enabling rapid heat dissipation at the moment the GPU starts up, and allowing for rapid outflow after being delivered into the coolant. When both ends of several guide fins 10 are open structures, coolant can quickly flow out of the guide fins 10 and transfer heat outward, improving heat dissipation efficiency.

[0040] The flow guiding structure of the liquid cooling plate provided by this utility model can disperse the coolant into each coolant channel 101 by a number of flow guiding fins when the coolant is transported in, and increase the flow and heat dissipation area of ​​the coolant in the coolant channel 101 by a number of first arc-shaped flow guiding sections 11 and second arc-shaped flow guiding sections 12, thereby improving the fluidity of the coolant, making the heat transfer efficiency of the coolant higher, and enabling the coolant to achieve more efficient heat conduction flow.

[0041] like Figure 2 and 4 As shown, the liquid cooling plate 20 provided in this embodiment of the present invention includes the flow guiding structure as described above. The liquid cooling plate 20 has a first heat guiding chamber 201 and a second heat guiding chamber 202 separated along the height direction. The first heat guiding chamber 201 and the second heat guiding chamber 202 are interconnected and the first heat guiding chamber 201 is located above the second heat guiding chamber 202. A plurality of flow guiding fins 10 are respectively disposed in the first heat guiding chamber 201 and the second heat guiding chamber 202.

[0042] In this embodiment, a conductive space 203 is formed at the connection between the first heat-conducting chamber 201 and the second heat-conducting chamber 202. The conductive space 203 contains a plurality of first arc-shaped turbulence sections 11 or a plurality of second arc-shaped turbulence sections 12. Coolant can flow into the coolant channel 101 of the first heat-conducting chamber 201, and after being turbulent by a plurality of guide fins 10, it can flow through the conductive space 203 into the coolant channel 101 of the second heat-conducting chamber 202, allowing the guide fins 10 in the second heat-conducting chamber 202 to further cool the fluid. The liquid achieves turbulence, which allows the coolant to continuously diffuse into each coolant channel 101 of the liquid cooling plate 20 as it continuously enters the liquid cooling plate 20, thereby achieving turbulent heat exchange and improving the heat dissipation effect of the liquid cooling plate 20. By setting the height of the first arc-shaped turbulence section 11 or the second arc-shaped turbulence section 12 in the conductive space 203 to be less than the height of the conductive space 203, the coolant will not be blocked by the heat-conducting fins 10 when entering the conductive space 203, allowing the coolant to diffuse into each coolant channel 101 of the second heat-conducting chamber 202 more quickly.

[0043] Furthermore, several guide fins 10 are separated by the first heat conduction chamber 201 and the second heat conduction chamber 202 to form at least two guide sections 103. The at least two guide sections 103 of each guide fin 10 correspond one-to-one in the height direction, so that when the coolant enters the first heat conduction chamber 201, the coolant can enter the conduction space 203 through the coolant channel 101. When the coolant flows from the conduction space 203 to the second heat conduction chamber 202, it can flow and diffuse synchronously to each coolant channel 101 of the second heat conduction chamber 202. This allows the coolant to conduct heat synchronously during the flow process, thereby improving the heat dissipation effect of the liquid cooling plate 20.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A flow guiding structure for a liquid cooling plate, characterized in that, include: A coolant channel is provided within a liquid cooling plate. Several guide fins are arranged within the coolant channel, each guide fin positioned along the coolant flow direction of the channel. The upper and lower ends of each guide fin abut against the upper and lower inner walls of the liquid cooling plate, respectively. A coolant channel is provided between adjacent guide fins. Guide holes are provided on each guide fin to connect the coolant channels on both sides. Each guide fin has a first arc-shaped turbulence section and a second arc-shaped turbulence section connected in sequence. Several first and second arc-shaped turbulence sections are sequentially and repeatedly connected to form several bent turbulence sections.

2. The flow guiding structure of the liquid cooling plate according to claim 1, characterized in that, The spacing between two adjacent guide fins is 1mm-5.5mm.

3. The flow guiding structure of the liquid cooling plate according to claim 1, characterized in that, The thickness of the guide fins is 0.2mm-2mm.

4. The flow guiding structure of the liquid cooling plate according to claim 1, characterized in that, Each of the aforementioned guide fins is provided with a guide hole, and the guide holes are all located on the first arc-shaped turbulence section or the second arc-shaped turbulence section. Furthermore, the guide holes on all the guide fins are on the same straight line in the lateral direction, and they connect the various coolant channels to each other.

5. The flow guiding structure of the liquid cooling plate according to claim 4, characterized in that, Each of the flow guide fins has multiple flow guide holes, which are spaced apart along the length of the flow guide fin.

6. The flow guiding structure of the liquid cooling plate according to claim 1, characterized in that, Both ends of several of the aforementioned guide fins are constructed as either closed or open structures.

7. The flow guiding structure of the liquid cooling plate according to claim 1, characterized in that, Several first arc-shaped turbulence segments and second arc-shaped turbulence segments are connected sequentially and repeatedly to form a wave shape, and the bending turbulence section is the connection point between the crest and trough of the wave.

8. A liquid-cooled plate, characterized in that, include: The flow guiding structure as described in any one of claims 1 to 7; The liquid cooling plate has a first heat-conducting chamber and a second heat-conducting chamber separated along the height direction. The first heat-conducting chamber and the second heat-conducting chamber are interconnected, and the first heat-conducting chamber is located above the second heat-conducting chamber. A plurality of the flow-guiding fins are respectively disposed in the first heat-conducting chamber and the second heat-conducting chamber.

9. The liquid cooling plate according to claim 8, characterized in that, A conductive space is formed at the connection between the first heat-conducting chamber and the second heat-conducting chamber. The conductive space is provided with a plurality of first arc-shaped turbulence sections or a plurality of second arc-shaped turbulence sections, and the height of the first arc-shaped turbulence section or the second arc-shaped turbulence section is less than the height of the conductive space.

10. The liquid cooling plate according to claim 8, characterized in that, The plurality of the flow guide fins are separated by the first heat conduction chamber and the second heat conduction chamber to form at least two flow guide sections, and the at least two flow guide sections of each flow guide fin correspond one-to-one in the height direction.

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