Liquid cooling plate
By designing the fin structure of the liquid cooling plate and using the staggered setting of the fins to increase the flow disturbance of the coolant, the problem of inefficient heat exchange caused by laminar flow in liquid cooling is solved, and efficient heat exchange and temperature uniformity are achieved.
Patent Information
- Application Number
- CN202422438093.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-09
AI Technical Summary
In existing liquid cooling technology, the laminar flow mode results in a low heat transfer coefficient and low heat exchange efficiency.
A liquid cooling plate is designed, comprising a shell and fins. The fins are composed of a plurality of sub-fin units arranged in an array. The protrusions of adjacent sub-fin units are staggered to increase disturbance when the coolant flows and improve turbulence capacity.
By increasing the flow disturbance of the coolant, the heat exchange performance and temperature uniformity of the liquid cold plate are improved, thereby improving the heat dissipation efficiency.
Smart Images
Figure CN223322320U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat dissipation of electronic equipment, in particular to a liquid cooling plate. Background Art
[0002] With the development of electronic information technology, miniaturization and integrated design are the trends in modern electronic equipment. The heat flux density of these devices increases with miniaturization and integration, and the number of components required to dissipate heat within a given range increases as well. Heat dissipation has become a major challenge for electronic equipment. Liquid cooling technology offers the advantages of high thermal conductivity, large specific heat capacity, and compact size. Liquid cooling also offers higher heat transfer efficiency than air cooling. Therefore, liquid cooling technology can meet the heat dissipation needs of high-power, high-heat-flux devices and has become a mainstream technology in the field.
[0003] In the process of implementing this application, the inventors found that there are at least the following technical problems in the prior art: the existing liquid cooling plate structure for achieving liquid cooling heat dissipation basically uses laminar flow to dissipate heat. In the laminar flow state, the fluid flows straight along the flow channel. This flow mode has a low heat transfer coefficient and the heat exchange efficiency is still not high. Utility Model Content
[0004] The purpose of the utility model is to provide a liquid cooling plate with high heat exchange efficiency, so as to improve the deficiencies of the prior art.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present utility model is as follows:
[0006] A liquid cooling plate, comprising:
[0007] The housing is provided with a receiving space for receiving the coolant, and a liquid inlet and a liquid outlet communicated with the receiving space;
[0008] The fin is arranged in the accommodating space, and the fin includes a plurality of sub-fin units arranged in an array. Each of the sub-fin units includes a plurality of continuous protrusions, and the protrusions of two adjacent sub-fin units are staggered.
[0009] Further,
[0010] The protrusions are arranged in a continuous tooth shape, and each protrusion is formed with a through hole for the coolant to flow through;
[0011] The shape of the continuous teeth includes one of the following: wave shape, "J" shape, and triangle shape.
[0012] Further,
[0013] The sub-fin unit includes a first sub-fin and a second sub-fin, and the protrusions in the first sub-fin and the second sub-fin have different heights, widths, and / or shapes.
[0014] Further,
[0015] The first sub-fins and the second sub-fins are staggered along the length direction of the shell;
[0016] The protrusions of the first sub-fin and the second sub-fin are staggered in the width direction of the shell, and / or the bottom end of the first sub-fin is flush with the bottom end of the second sub-fin, and the top end of the first sub-fin is lower than the top end of the second sub-fin.
[0017] Further,
[0018] The housing includes a cavity plate with a cavity therein and two covers provided at opposite ends of the cavity plate;
[0019] The cavity plate is made by an extrusion molding process, and the cavity plate and the two covers are combined to form the accommodating space of the shell; wherein, the material of the cavity plate is an aluminum alloy profile, and the surface of the cavity plate is copper-plated, or the material of the cavity plate is copper.
[0020] Further,
[0021] The cavity plate includes a bottom plate and an enclosing plate protruding from an upper surface of a middle portion of the bottom plate, and the cavity is formed in the enclosing plate.
[0022] Further,
[0023] The bottom plate is provided with a plurality of upper convex teeth which are parallel to each other and spaced apart on one side in the cavity, and the enclosing plate is provided with a plurality of lower convex teeth which are parallel to each other and spaced apart on one side in the cavity.
[0024] Further,
[0025] The cavity plate is brazed and welded to the two sealing covers.
[0026] Further,
[0027] The top of each sub-fin unit is provided with a first abutting plane abutting against the enclosing plate, and the bottom is provided with a second abutting plane abutting against the bottom plate. The first abutting plane of each sub-fin unit is welded to the enclosing plate, and the second abutting plane is welded to the bottom plate.
[0028] Further,
[0029] The shell also includes a liquid inlet pagoda head connected to the liquid inlet and a liquid outlet pagoda head connected to the liquid outlet.
[0030] Compared with the prior art, the embodiments of the present invention have at least the following technical effects:
[0031] The liquid cooling plate of an embodiment of the present invention includes a shell and fins. The shell is provided with a storage space for accommodating cooling liquid and a liquid inlet and a liquid outlet connected to the storage space. The fins are arranged in the storage space. The fins include a plurality of sub-fin units arranged in an array. Each sub-fin unit includes a plurality of continuous protrusions. The protrusions of two adjacent sub-fin units are staggered. The cooling liquid flows into the storage space of the shell from the liquid inlet, flows through the fins and is discharged from the liquid outlet. When the cooling liquid flows through the fins, the fins can increase the flow disturbance of the cooling liquid, improve the turbulent flow capacity of the liquid cooling plate, and improve the heat exchange performance and temperature uniformity performance of the liquid cooling plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 is a perspective view of an embodiment;
[0033] Figure 2 is an exploded view of an embodiment;
[0034] Figure 3 is a partial cross-sectional view of an embodiment;
[0035] Figure 4 is a three-dimensional diagram of a cavity plate in one embodiment;
[0036] Figure 5 is a perspective view of a fin in one embodiment;
[0037] Figure 6 3D is a perspective view of a sub-fin unit in one embodiment.
[0038] Description of Figure Numbers:
[0039] 10. Housing;
[0040] 11. Accommodation space; 12. Liquid inlet; 13. Liquid outlet; 14. Cavity plate; 15. Cover;
[0041] 140, bottom plate; 141, enclosure plate; 142, upper convex teeth; 143, lower convex teeth; 144, cavity;
[0042] 20. Fins;
[0043] 21. Sub-fin unit; 210. First sub-fin; 211. Second sub-fin; 212. Protrusion; 213. First abutting plane; 214. Second abutting plane;
[0044] 2120, perforation;
[0045] 30. Liquid inlet pagoda head; 40. Liquid outlet pagoda head. DETAILED DESCRIPTION
[0046] The following is a further detailed description of the technical solution of the present invention in conjunction with the accompanying drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. In the following description, reference is made to "some embodiments", which describes a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.
[0047] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.
[0048] like Figure 1-6 As shown, in one embodiment of the utility model, the liquid cooling plate includes a shell 10 and fins 20. The shell 10 is provided with a receiving space 11 for receiving the cooling liquid and a liquid inlet 12 and a liquid outlet 13 connected to the receiving space 11. The fins 20 are arranged in the receiving space 11. The fins 20 include a plurality of sub-fin units 21 arranged in an array. Each sub-fin unit 21 includes a plurality of continuous protrusions 212. The protrusions 212 of two adjacent sub-fin units 21 are staggered. The cooling liquid flows from the liquid inlet 12 into the receiving space 11 of the shell 10, flows through the fins and is discharged from the liquid outlet 13. When the cooling liquid flows through the fins, the fins can increase the flow disturbance of the cooling liquid, improve the turbulent flow capacity of the liquid cooling plate, and improve the heat exchange performance and temperature uniformity performance of the liquid cooling plate.
[0049] like Figure 5-6As shown, in one embodiment of the utility model, the protrusions 212 are arranged in a continuous tooth-like shape, and a through-hole 2120 is formed in each of the protrusions 212 for the coolant to flow through, and the shape of the continuous teeth is a "J" shape. The coolant flows from the liquid inlet 12 into the accommodating space 11 of the shell 10, flows through the fins, and is discharged from the liquid outlet 13. Because the protrusions 212 are arranged in a continuous tooth-like shape, and the shape of the continuous teeth is a "J" shape, and a through-hole 2120 is formed in each of the protrusions 212 for the coolant to flow through, the fins can further increase the flow disturbance of the coolant when the coolant flows through the fins, thereby improving the turbulent flow capacity of the liquid cooling plate, and improving the heat exchange performance and temperature uniformity performance of the liquid cooling plate. In other embodiments, the shape of the continuous teeth can also be set to a wave shape, a triangle, etc., and the specific setting depends on the actual needs of the user and is not limited here.
[0050] like Figure 6 As shown, in one embodiment of the utility model, the sub-fin unit 21 includes a first sub-fin 210 and a second sub-fin 211. The height and width of the protrusion 212 in the first sub-fin 210 and the second sub-fin 211 are different, and the shape is the shape of "J". The coolant flows into the accommodating space 11 of the shell 10 from the liquid inlet 12, flows through the fins and is discharged from the liquid outlet 13. When the coolant flows through the fins, the fins can further increase the flow disturbance of the coolant, improve the turbulence capacity of the liquid cooling plate, and improve the heat exchange performance and temperature uniformity performance of the liquid cooling plate. In other embodiments, the height, width and shape of the protrusion 212 in the first sub-fin 210 and the second sub-fin 211 can all be different, or one of them can be different, or two of them can be different. The specific setting depends on the actual needs of the user and is not limited here.
[0051] like Figure 3 、 Figure 5 and Figure 6As shown, in one embodiment of the utility model, the first sub-fin 210 and the second sub-fin 211 are arranged alternately along the length direction of the shell 10, and the protrusions 212 of the first sub-fin 210 and the second sub-fin 211 are staggered with each other along the width direction of the shell 10, the bottom end of the first sub-fin 210 is flush with the bottom end of the second sub-fin 211, and the top end of the first sub-fin 210 is lower than the top end of the second sub-fin 211. The coolant flows from the liquid inlet 12 into the accommodating space 11 of the shell 10, flows through the fins and is discharged from the liquid outlet 13. Since the first sub-fin 210 and the second sub-fin 211 are staggered along the length direction of the shell 10, the protrusions 212 of the first sub-fin 210 and the second sub-fin 211 are staggered with each other along the width direction of the shell 10, the bottom end of the first sub-fin 210 is flush with the bottom end of the second sub-fin 211, and the top end of the first sub-fin 210 is lower than the top end of the second sub-fin 211. When the coolant flows through the fins, longitudinal and transverse convection motions are generated. When the coolant flows through the fins, the fins can increase the flow disturbance of the coolant, improve the turbulence capacity of the liquid cooling plate, and improve the heat exchange performance and temperature uniformity performance of the liquid cooling plate.
[0052] like Figure 1-4 As shown, in one embodiment of the utility model, the shell 10 includes a cavity plate 14 with a cavity 144 inside and two covers 15 provided at opposite ends of the cavity plate 14. The cavity plate 14 is made by an extrusion molding process. The cavity plate 14 and the two covers 15 enclose the accommodating space 11 of the shell 10, wherein the material of the cavity plate 14 is an aluminum alloy profile, and the surface of the cavity plate 14 is copper-plated. The cavity of the cavity plate 14 is made of aluminum alloy profile extrusion molding process, and the processing cost is low. The two covers 15 are respectively covered on the two openings in the cavity plate 14 that are connected to the cavity. The cavity plate 14 and the two covers 15 are enclosed to form the accommodating space 11 of the shell 10, which can effectively reduce the overall manufacturing cost of the liquid cooling plate. The outer surface of the cavity plate 14 is copper-plated, which can increase the thermal conductivity of the surface around the liquid cooling plate and enhance the temperature uniformity of the liquid cooling plate. The inner surface of the cavity 144 of the cavity plate 14 is copper-plated, which can enhance the potential corrosion resistance and increase the product life of the liquid cooling plate. In other embodiments, the cavity plate 14 as a whole can also be processed with copper.
[0053] like Figure 4As shown, in one embodiment of the utility model, the cavity plate 14 includes a base plate 140 and an enclosure plate 141 protruding from the upper surface of the middle portion of the base plate 140, and the cavity 144 is formed in the enclosure plate 141. The base plate 140 and the enclosure plate 141 are integrally formed. The cavity of the cavity plate 14 formed by the base plate 140 and the enclosure plate 141 has good airtightness and strong pressure retention capacity. During long-term operation, the liquid cooling plate can effectively reduce the risk of coolant leakage and improve the reliability and durability of the liquid cooling plate.
[0054] like Figure 3 and Figure 5 As shown, in one embodiment of the utility model, the bottom plate 140 is provided with a plurality of mutually parallel and spaced upper convex teeth 142 on one side within the cavity, and the enclosing plate 141 is provided with a plurality of mutually parallel and spaced lower convex teeth 143 on one side within the cavity. The provision of the upper convex teeth 142 and the lower convex teeth 143 effectively increases the heat exchange area between the coolant and the liquid cooling plate, improving the heat dissipation capacity of the liquid cooling plate. In addition, the upper convex teeth 142 and the lower convex teeth 143 increase the flow disturbance of the coolant as it flows through the fins, improving the turbulent flow capacity of the liquid cooling plate.
[0055] like Figure 1 and Figure 2 As shown, in one embodiment of the utility model, the cavity plate 14 and the two covers 15 are brazed. Brazing is used to weld the cavity plate 14 and the two covers 15. The covers 15 seal the two openings of the cavity plate 14 by brazing. The housing 10 formed by the cavity plate 14 and the two covers 15 has good airtightness and strong pressure retention. The liquid cooling plate can effectively reduce the risk of coolant leakage during long-term operation, thereby improving the reliability and durability of the liquid cooling plate.
[0056] like Figure 3 and Figure 6 As shown, in one embodiment of the utility model, the top end of each sub-fin unit 21 is provided with a first abutting plane 213 that abuts against the enclosing plate 141, and the bottom end is provided with a second abutting plane 214 that abuts against the bottom plate 140. The first abutting plane 213 of each sub-fin unit 21 is welded to the enclosing plate 141, and the second abutting plane 214 is welded to the bottom plate 140. By welding the first abutting plane 213 of the sub-fin unit 21 to the enclosing plate 141 and the second abutting plane 214 of the sub-fin unit 21 to the exchange plate, the position of the fin in the accommodating space 11 can be effectively fixed.
[0057] like Figure 1-4As shown, in one embodiment of the utility model, the housing 10 further includes a liquid inlet tap 30 connected to the liquid inlet 12, and a liquid outlet tap 40 connected to the liquid outlet 13. The provision of the tap can achieve quick connection and disconnection of the pipeline, improving the efficiency of installation. The tap includes a sealing member, such as an O-ring or a metal gasket, which can produce a seal when tightened, reducing the risk of leakage during the coolant delivery process.
[0058] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. The scope of protection of the present utility model should be based on the scope of protection of the claims.
Claims
1. A liquid cooling plate, characterized in that: include: The housing (10) is provided with a receiving space (11) for receiving a coolant, and a liquid inlet (12) and a liquid outlet (13) communicated with the receiving space (11); A fin (20) is arranged in the accommodating space (11), and the fin includes a plurality of sub-fin units (21) arranged in an array, each of the sub-fin units (21) includes a plurality of continuous protrusions (212), and the protrusions (212) of two adjacent sub-fin units (21) are staggered.
2. The liquid cooling plate according to claim 1, wherein: The protrusions (212) are arranged in a continuous tooth shape, and a through hole (2120) is formed in each protrusion (212) for the coolant to flow through; The shape of the continuous teeth includes one of the following: wave shape, "J" shape, and triangle shape.
3. The liquid cooling plate according to claim 1 or 2, characterized in that: The sub-fin unit (21) comprises a first sub-fin (210) and a second sub-fin (211); the protrusions (212) in the first sub-fin (210) and the second sub-fin (211) have different heights, and / or different widths, and / or different shapes.
4. The liquid cooling plate according to claim 3, wherein: The first sub-fins (210) and the second sub-fins (211) are staggered along the length direction of the housing (10); The protrusions (212) of the first sub-fin (210) and the second sub-fin (211) are staggered with each other in the width direction of the shell (10), and / or the bottom end of the first sub-fin (210) is flush with the bottom end of the second sub-fin (211), and the top end of the first sub-fin (210) is lower than the top end of the second sub-fin (211).
5. The liquid cooling plate according to claim 1, wherein: The housing (10) comprises a cavity plate (14) with a cavity (144) therein and two covers (15) provided at opposite ends of the cavity plate (14); The cavity plate (14) is made by an extrusion molding process, and the cavity plate (14) and the two covers (15) enclose the accommodating space (11) of the shell (10); wherein the material of the cavity plate (14) is an aluminum alloy profile, and the surface of the cavity plate (14) is copper-plated, or the material of the cavity plate (14) is copper.
6. The liquid cooling plate according to claim 5, characterized in that: The cavity plate (14) comprises a bottom plate (140) and an enclosure plate (141) protruding from the upper surface of the middle portion of the bottom plate (140), and the cavity (144) is formed in the enclosure plate (141).
7. The liquid cooling plate according to claim 6, wherein: The bottom plate (140) is provided with a plurality of upper convex teeth (142) that are parallel to each other and spaced apart on one side of the cavity, and the enclosing plate (141) is provided with a plurality of lower convex teeth (143) that are parallel to each other and spaced apart on one side of the cavity.
8. The liquid cooling plate according to claim 5, wherein: The cavity plate (14) and the two sealing covers (15) are brazed and welded.
9. The liquid cooling plate according to claim 6, wherein: The top end of each sub-fin unit (21) is provided with a first abutting plane (213) abutting against the enclosing plate (141), and the bottom end is provided with a second abutting plane (214) abutting against the bottom plate (140); the first abutting plane (213) of each sub-fin unit (21) is welded to the enclosing plate (141), and the second abutting plane (214) is welded to the bottom plate (140).
10. The liquid cooling plate according to claim 1, wherein: The housing (10) further comprises a liquid inlet pagoda head (30) connected to the liquid inlet (12), and a liquid outlet pagoda head (40) connected to the liquid outlet (13).