High-efficiency liquid-cooling radiator for high-heat-flux component

Abstract

The invention relates to the technical field of a heat exchange device with a fixed channel assembly only used for one heat exchange medium, in particular to an efficient liquid cooling radiator for a high-heat-flux component, which comprises a frame, a radiating pipe arranged in a snakelike manner is arranged in the frame, and a plurality of groups of heat exchange modules are uniformly arranged on the radiating pipe along the medium flowing direction of the radiating pipe; the heat exchange module comprises a heat conduction part arranged on the heat dissipation pipe in a sleeving mode, two sets of heat exchange fin parts are transversely and symmetrically arranged on the two sides of the heat conduction part, two sets of heat exchange fin parts are longitudinally and symmetrically arranged on the two sides of the heat conduction part, and a flow guide part is arranged between every two sets of heat exchange fin parts. Through the collaborative design of the snake-shaped heat dissipation pipe and the multi-stage integrated heat exchange module, the efficient liquid cooling and cold discharging system integrating internal flow strengthening, external air optimizing, interface low resistance and local targeted cooling is constructed.

Description

Technical Field

[0001] This invention relates to the technical field of heat exchange devices with fixed channel assemblies that use only one heat exchange medium, and more specifically, to a high-efficiency liquid-cooled radiator for high heat flux density components. Background Technology

[0002] According to CN112414164A, a multi-channel high-efficiency water-cooling radiator, the product includes a distribution channel, a water collection channel, a first row of pipes, a second row of pipes, a third row of pipes, and a fourth row of pipes. The distribution channel is made of heat-dissipating metal and is divided into an inlet chamber, a transition chamber, and an outlet chamber by multiple first distribution baffles. The water collection channel is also made of heat-dissipating metal and is divided into a first collection chamber and a second collection chamber by multiple second distribution baffles. By setting distribution baffles in both the distribution channel and the water collection channel to form multiple chambers, and by connecting the various pipes to the corresponding chambers, the flow channels in this product form multiple sequentially connected meandering structures, effectively extending the flow path of water in the water-cooling radiator, allowing the water to be effectively and fully cooled and dissipated, resulting in excellent overall heat dissipation performance.

[0003] The aforementioned patents still have shortcomings in practical use. Existing liquid-cooled radiators, as devices that rely on heat exchange media for heat transfer, typically conduct heat to external fins through the heat exchange medium within the heat pipes, and then dissipate the heat accumulated on the fins into the environment using forced convection from a fan, thus completing the heat exchange process. However, this structure has several efficiency bottlenecks: First, the fins often adopt a matrix-arranged thin-plate structure, which, while increasing the heat exchange area, results in high solid-solid contact thermal resistance between the fins and the heat pipes, limiting the heat conduction path and leading to a slow rate of heat transfer from the pipe wall to the fins; second, the heat exchange medium must undergo a multi-stage heat transfer process involving "medium, pipe wall, fins, and air," with each stage introducing additional thermal resistance, significantly restricting the overall heat exchange efficiency; furthermore, traditional fin layouts often lack optimized airflow design, resulting in uneven airflow distribution among the fins and high flow resistance, further weakening the convective heat transfer effect. These factors collectively limit the improvement of the radiator's thermal performance.

[0004] Based on this, the present invention discloses a high-efficiency liquid-cooled radiator for high heat flux density components. Summary of the Invention

[0005] To address the problems mentioned in the background art, such as the reliance on multi-stage solid-phase heat transfer (heat medium, pipe wall, fins, air), high contact thermal resistance between fins and heat dissipation pipes, and lack of optimized airflow in the matrix fin layout, which lead to limited overall heat exchange efficiency, this invention provides a high-efficiency liquid cooling radiator for high heat flux density components. It includes a frame, in which heat dissipation pipes are arranged in a serpentine layout, and several sets of heat exchange modules are uniformly arranged on the heat dissipation pipes along the direction of medium flow.

[0006] The heat exchange module includes a heat-conducting part sleeved on the heat dissipation pipe. Two sets of heat exchange fins are symmetrically arranged laterally on both sides of the heat-conducting part, and two sets of heat exchange fins are symmetrically arranged longitudinally on both sides of the heat-conducting part. A flow guide is provided between each pair of heat exchange fins.

[0007] In order to improve the heat conduction efficiency from the heat pipe to the heat exchange fins, the present invention adopts a heat-conducting part to increase the contact area between the heat exchange fins and the heat pipe, and connects the heat-conducting part and the heat exchange fins by brazing.

[0008] As a further improvement to this technical solution, the heat-conducting part includes a heat-conducting ring sleeved on the heat dissipation pipe, and heat-conducting wedge rings are fixed on both sides of the heat-conducting ring. The cross-section of the heat-conducting wedge ring is arc-shaped, and liquid metal can be filled inside the heat-conducting ring to further improve the heat conduction efficiency.

[0009] Based on this, in order to solve the problems of multiple heat conduction steps and low heat conduction efficiency between traditional heat pipes and fins, as well as low heat dissipation efficiency for heat exchange medium, this invention adopts a method of guiding the heat exchange medium flowing through the heat pipe into the fin, while optimizing the structure of the fin, to increase the flow area of ​​the heat exchange medium and the heat exchange area of ​​the fin.

[0010] As a further improvement to this technical solution, the heat exchange fin section includes a fin plate, a temporary storage groove is formed in the fin plate, and an inlet pipe and an outlet pipe are respectively arranged on both sides of the temporary storage groove in the fin plate; one end of the inlet pipe and the outlet pipe are connected to the temporary storage groove, and the other end of the inlet pipe and the outlet pipe are respectively provided with a water collection cover and a water outlet cover, and the inlet pipe and the outlet pipe are respectively connected to the heat dissipation pipe through the water collection cover and the water outlet cover; secondly, the ends of the inlet pipes in the two longitudinally symmetrical fin plates on the heat-conducting wedge ring that are away from the temporary storage groove are connected to each other, and the ends of the outlet pipes in the two longitudinally symmetrical fin plates on the heat-conducting wedge ring that are away from the temporary storage groove are connected to each other.

[0011] It should be added that the water collection cover and the water outlet cover have a conical structure and are semi-open, and the openings of the water collection cover and the water outlet cover are inclined towards the center of the heat conduction ring; the water collection cover and the water outlet cover have the same structure but the openings face opposite directions, and the water inlet end of the water collection cover flows in the opposite direction to the medium in the heat dissipation pipe.

[0012] In addition, a second heat exchange air groove is provided at the top of the fin plate away from the heat conduction part, and a number of first heat exchange air grooves are provided on both sides of the fin plate, forming a heat exchange air duct between every two fin plates.

[0013] In another embodiment, in order to improve the heat exchange efficiency when the heat exchange medium flows through the fins, and further improve the heat exchange efficiency at the connection between the heat pipe and the fins, this invention adopts Bernoulli's principle to rapidly cool the position where the heat exchange medium flows through the fins, and at the same time, with the help of the optimized design of the air duct, further improves the heat exchange efficiency near the contact point between the fins and the heat pipe.

[0014] As a further improvement to this technical solution, the flow guiding section includes a flow guiding clamp disposed between two finned plates. A cooling air duct is formed within the flow guiding clamp, and the outlet end of the cooling air duct is narrow and located at the inlet end of the water inlet pipe. The flow guiding section includes a flow guiding clamp fixed on a heat-conducting ring. The flow guiding clamp has a concave structure and is adapted to the heat-conducting ring. A cooling air duct is formed within the flow guiding clamp, and the inner diameter of the inlet opening of the cooling air duct is larger than the inner diameter of the outlet opening. Furthermore, the cooling air duct is divided into two sections with the center as the node. The first section has a rectangular structure, and the second section has a circular tube structure. Secondly, the two sides of the flow guiding clamp are respectively attached to the corresponding finned plates. The two ends of the cooling air duct are the air inlet and the air outlet, respectively. The air outlet is located at the center position between the two water collection covers and the junction of the water inlet pipe. The top of the flow guiding clamp is located below the first heat exchange air trough.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In this high-efficiency liquid cooling radiator for high heat flux density components, by designing the heat dissipation pipes in a serpentine layout and uniformly arranging several sets of heat exchange modules along the medium flow direction, the residence time of the heat exchange medium in the radiator is extended and heat exchange is carried out step by step, which is conducive to fully releasing heat and avoiding the problem of insufficient heat exchange caused by excessive flow rate in the traditional straight-through structure, thereby significantly improving the overall heat exchange efficiency.

[0017] Secondly, by installing a heat-conducting part on the heat pipe and brazing it to firmly connect the heat-conducting part to the heat exchange fins, and by filling the heat-conducting ring with liquid metal to further reduce the interfacial thermal resistance, the actual contact area and the continuity of the heat conduction path between the heat pipe and the heat exchange fins are effectively increased. This solves the core bottleneck of "high contact thermal resistance between the fins and the heat pipe and low solid-solid thermal conductivity" in the background technology, thereby achieving efficient and rapid heat conduction from the pipe wall to the fins.

[0018] 2. In this high-efficiency liquid cooling radiator for high heat flux density components, a temporary storage tank, inlet pipe, and outlet pipe are built into the heat exchange fins, and the radiator is connected to the heat dissipation pipe through the water collection cover and outlet cover, so that part of the heat exchange medium flows directly into the interior of the fins for secondary heat exchange; this breaks the traditional multi-stage passive heat transfer mode that only relies on pipe-fin-air, and transforms the fins that originally "only rely on solid heat conduction" into functional units that "also have fluid active heat exchange", which greatly increases the effective heat exchange area and heat capacity participation, thereby significantly improving the heat exchange capacity per unit volume;

[0019] Secondly, the water collection shroud adopts a conical semi-open structure that is wider at the front and narrower at the back, with its opening facing the center of the heat dissipation pipe and arranged against the mainstream direction of the medium. Utilizing the Venturi effect, it accelerates the flow of the medium into the inlet pipe, which not only improves the kinetic energy and flow stability of the medium entering the temporary storage tank, but also provides a higher initial flow velocity for subsequent heat exchange, which is beneficial for enhancing convective heat transfer. The outlet shroud adopts a reverse opening design, which matches the flow direction of the return medium with that of the main channel, reduces disturbance and maintains stable system pressure drop, thereby optimizing the fluid dynamics performance of the entire circulation system. Furthermore, by setting a second heat exchange air duct on the top of the fins and setting several first heat exchange air ducts on both sides, and forming a heat exchange air channel between adjacent fins, the external airflow is effectively guided through the fin gaps, increasing the contact area and flow velocity between the air and the fin surface (forming a local "wind knife" effect), enhancing convective heat dissipation. At the same time, the air duct structure breaks the drawback of traditional matrix fins without air duct guidance, solving the problems of "lack of optimized air ducts and uneven airflow distribution" in the background technology, thereby improving the air-side heat exchange efficiency.

[0020] 3. In this high-efficiency liquid cooling radiator for high heat flux density components, a guide section is set between every two sets of heat exchange fins, and the narrow outlet of the cooling air duct is precisely aligned with the high-temperature transition zone between the water collection cover and the water inlet pipe. Utilizing Bernoulli's principle, the static pressure of the high-speed airflow decreases and the temperature drops sharply after passing through the contraction section, achieving targeted pre-cooling at the medium inlet. This design not only enhances local heat dissipation in the areas most prone to heat accumulation, but also forms a composite air duct by fitting the guide plate and fins together, achieving multi-dimensional airflow organization in conjunction with the heat exchange air duct, thereby further improving the thermal response speed of key nodes and the thermal balance of the system. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the heat exchange module of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the heat exchange fin section of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the heat-conducting part of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the fin plate of the present invention;

[0026] Figure 6 This is a cross-sectional view of the fin plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the air outlet structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the flow guide clamp of the present invention;

[0029] Figure 9 This is a cross-sectional view of the flow guide clamp of the present invention.

[0030] The meanings of the labels in the diagram are as follows:

[0031] 1. Frame; 2. Heat pipes; 3. Heat exchange fins; 4. Airflow guide; 5. Heat conduction section;

[0032] 31. Finned plate; 32. Temporary storage tank; 33. Water inlet pipe; 34. Water outlet pipe; 35. Water collection cover; 36. Water outlet cover; 37. Heat exchange air duct; 38. First heat exchange air duct; 39. Second heat exchange air duct;

[0033] 41. Airflow guide plate; 42. Cooling air duct; 43. Air inlet; 44. Air outlet;

[0034] 51. Heat-conducting ring; 52. Heat-conducting wedge ring. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Existing liquid cooling radiators rely on multi-stage solid-phase heat transfer (heat medium, pipe wall, fins, air), have high contact thermal resistance between fins and heat pipes, and lack optimized airflow in their matrix fin layout, resulting in limited overall heat exchange efficiency.

[0037] Therefore, the present invention provides a high-efficiency liquid-cooled radiator for high heat flux density components, see [link to relevant documentation]. Figures 1-3 As shown, it includes a frame 1, and a serpentine heat exchange pipe 2 is arranged inside the frame 1. Several sets of heat exchange modules are evenly arranged on the heat exchange pipe 2 along its medium flow direction.

[0038] The heat exchange module includes a heat-conducting part 5 sleeved on the heat dissipation pipe 2. Two sets of heat exchange fins 3 are symmetrically arranged laterally on both sides of the heat-conducting part 5, and two sets of heat exchange fins 3 are symmetrically arranged longitudinally on both sides of the heat-conducting part 5. A flow guide part 4 is provided between each pair of heat exchange fins 3.

[0039] During operation, after the heat exchange medium flows in through the inlet end of the heat exchange pipe 2, the heat exchange pipe 2 is designed with a serpentine structure, which allows the heat exchange medium to stay in the heat exchange pipe 2 for a longer time. Then, relying on several sets of heat exchange modules along the direction of the heat exchange medium flow, the heat exchange medium is equivalent to being continuously heat exchanged all the way, and finally flows out from the outlet end of the heat exchange pipe 2, and then enters the next cycle.

[0040] The heat exchange medium flowing through the heat pipe 2 passes through several heat exchange modules. Each time it passes through a heat exchange module, the heat exchange medium is introduced into the heat exchange fin section 3 through the heat exchange fin section 3 to further increase the heat exchange area and improve the heat exchange efficiency. At the same time, the flow guide section 4 further pre-heats the flow point of the heat exchange medium flowing into the heat exchange fin section 3. The whole process is that the heat pipe 2 is first heated by the heat conduction section 5, then the heat exchange medium is further heated by the heat exchange fin section 3, and then the flow guide section 4 performs rapid pre-heat exchange at the flow point of the heat exchange medium.

[0041] For details, see Figures 2-5 As shown, in order to improve the heat conduction efficiency from the heat pipe 2 to the heat exchange fins 3, the present invention uses a heat-conducting part 5 to increase the contact area between the heat exchange fins 3 and the heat pipe 2, and connects the heat-conducting part 5 and the heat exchange fins 3 by brazing. Specifically, the heat-conducting part 5 includes a heat-conducting ring 51 sleeved on the heat pipe 2, and heat-conducting wedge rings 52 are fixed on both sides of the heat-conducting ring 51. The heat-conducting wedge rings 52 have an arc-shaped cross-section, and the heat-conducting ring 51 can be filled with liquid metal to further improve the heat conduction efficiency.

[0042] Further, see Figures 2-6As shown, to address the issues of numerous heat conduction steps and low heat conduction efficiency in traditional heat pipes to fins, as well as low heat dissipation efficiency for the heat exchange medium, this invention employs a method that guides the heat exchange medium flowing through the heat pipe 2 into the fins, while simultaneously optimizing the fin structure to increase the flow area of ​​the heat exchange medium and the heat exchange area of ​​the fins. Specifically, the heat exchange fin section 3 includes a fin plate 31, with a temporary storage groove 32 formed within the fin plate 31. An inlet pipe 33 and an outlet pipe are respectively arranged on both sides of the temporary storage groove 32 within the fin plate 31. 34; One end of the water inlet pipe 33 and the water outlet pipe 34 are connected to the temporary storage tank 32, and the other end of the water inlet pipe 33 and the water outlet pipe 34 are respectively provided with a water collection cover 35 and a water outlet cover 36. The water inlet pipe 33 and the water outlet pipe 34 are respectively connected to the heat dissipation pipe 2 through the water collection cover 35 and the water outlet cover 36; Secondly, the ends of the water inlet pipes 33 in the two longitudinally symmetrical fin plates 31 on the heat-conducting wedge ring 52 away from the temporary storage tank 32 are connected to each other, and the ends of the water outlet pipes 34 in the two longitudinally symmetrical fin plates 31 on the heat-conducting wedge ring 52 away from the temporary storage tank 32 are connected to each other.

[0043] It should be added that the water collection cover 35 and the water outlet cover 36 have a conical structure and are semi-open, and the openings of the water collection cover 35 and the water outlet cover 36 are inclined towards the center of the heat conduction ring 51; the water collection cover 35 and the water outlet cover 36 have the same structure but the openings face opposite directions, and the water inlet end of the water collection cover 35 flows in the opposite direction to the medium in the heat dissipation pipe 2.

[0044] In addition, a second heat exchange air groove 39 is provided at the top of the fin plate 31 away from the heat conduction part 5, and a number of first heat exchange air grooves 38 are provided on both sides of the fin plate 31, forming a heat exchange air duct 37 between every two fin plates 31.

[0045] During operation, the heat exchange medium circulates rapidly within the heat pipe 2. As the heat exchange medium passes through each heat exchange module, it flows through its corresponding water collection shroud 35. The conical structure of the water collection shroud 35, with its tilted layout towards the center of the heat conduction ring 51, quickly gathers the flowing medium and guides it into the inlet pipe 33. Due to the medium's certain flow velocity and the corresponding circulation pump pressurizing it, and most importantly, the design of the water collection shroud 35 (wider at the front and narrower at the back), the flow velocity at the end increases, allowing the medium to quickly pass through the inlet pipe 33 into the temporary storage tank 32. This further increases the heat exchange area between the medium and the finned plate 31 within the temporary storage tank 32. At the same time, the heat exchange air duct 37 formed between the two finned plates 31 allows air to flow through it, further carrying away the heat exchanged between the temporary storage tank 32 and the finned plate 31.

[0046] Secondly, the heat exchange air grooves on the top and sides of the finned plate 31 increase the contact area between the air and the finned plate 31 when the air flows through them, further improving the heat exchange efficiency. In addition, the grooves can also form an effect similar to air knives, accelerating the speed at which the air flows through the grooves, which can also improve the heat exchange efficiency.

[0047] Moreover, in this invention, the medium that enters through the water collection cover 35 will flow into the upper and lower water inlet pipes 33. In other words, the temporary storage grooves 32 in the two longitudinally symmetrical fin plates 31 of the heat conduction ring 51 will both flow with the medium. This results in a matrix layout, which increases the heat exchange area and heat exchange efficiency of the medium.

[0048] Finally, the medium that has passed through the temporary storage tank 32 will exchange heat with the air between the heat exchange ducts 37 and then flow out through the outlet pipe 34. It will then flow back into the heat dissipation pipe 2 in conjunction with the outlet cover 36. The opposite opening design of the outlet cover 36 and the water collection cover 35 can reduce the impact of the medium flowing back into the heat dissipation pipe 2 on the overall flow direction and flow speed of the medium in the heat dissipation pipe 2, so that it matches the overall flow direction of the medium in the heat dissipation pipe 2. At the same time, the outlet cover 36 can also further increase the flow rate of the medium in the heat dissipation pipe 2, thus paving the way for the increased flow rate of the medium flowing into the water collection cover 35 in the next heat exchange module.

[0049] The heat exchange modules are arranged in sections, which is equivalent to exchanging heat between the medium and the heat exchange tube 2 in stages. Finally, the heat exchange is completed when the water flows out through the outlet of the heat exchange tube 2, which greatly improves the heat exchange efficiency.

[0050] Furthermore, see Figures 7-9 As shown, in order to improve the heat exchange efficiency of the heat exchange medium flowing through the fins, and further improve the heat exchange efficiency at the connection between the heat pipe and the fins, this invention uses Bernoulli's principle to rapidly cool the area where the heat exchange medium flows through the fins. Simultaneously, with the optimized design of the air duct, the heat exchange efficiency near the contact point between the fins and the heat pipe is further improved. Specifically, the flow guide 4 includes a flow guide clamp 41 disposed between the two fin plates 31. A cooling air duct 42 is formed within the flow guide clamp 41. The outlet of the cooling air duct 42 is narrow and located at the inlet end of the water inlet pipe 33. The flow guide 4 includes a flow guide fixed on the heat-conducting ring 51. The guide plate 41 has a concave structure and is adapted to the heat conduction ring 51. A cooling air duct 42 is opened inside the guide plate 41. The inner diameter of the air inlet opening of the cooling air duct 42 is larger than the inner diameter of the air outlet opening. The cooling air duct 42 is divided into two sections with the center as the node. The first section is a rectangular structure and the second section is a circular tube structure. The two sides of the guide plate 41 are respectively attached to the corresponding fin plates 31. The two ends of the cooling air duct 42 are the air inlet 43 and the air outlet 44, respectively. The air outlet 44 is located at the center between the interface of the water collection cover 35 on both sides and the water inlet pipe 33. The top of the guide plate 41 is located below the first heat exchange air trough 38.

[0051] During operation, since the water collection shroud 35 of each heat exchange module is the flow point for the medium to flow into the temporary storage tank 32, the temperature of the medium, finned plates 31, and heat conduction ring 51 located here will be relatively high. In this invention, the medium flows into the cooling duct 42 through air circulation. That is, the air first enters through the relatively large-diameter air inlet 43 and then flows out through the extremely small-diameter opening of the cooling duct 42. According to Bernoulli's principle, the temperature at the cooling duct 42 will drop sharply. Moreover, the cooling duct 42 is located in the center between the two water collection shrouds 35, so preheating can be performed at this medium flow point. At the same time, the flow guide plate 41 is designed between every two finned plates 31, and together with the heat exchange duct 37 formed between every two finned plates 31, they exchange heat on the finned plates 31 on both sides and the medium and heat conduction within the finned plates 31.

[0052] In summary, this invention utilizes a heat exchange medium that flows through each heat exchange module in a serpentine tube. On one hand, the medium is efficiently conducted to the fins via the heat-conducting part 5; on the other hand, a portion of the medium is guided by the water-collecting cover 35 into the temporary storage tank 32 inside the fins for active heat exchange. Simultaneously, external airflow implements efficient convective cooling of the fins and high-temperature nodes through optimized air ducts (heat exchange air duct 37, cooling air duct 42, and various air slots). This effectively solves the problem that existing liquid cooling radiators rely on multi-stage solid-phase heat transfer mediums, and suffer from high contact thermal resistance between the tube wall, fins, air, and heat dissipation tubes, as well as the lack of optimized air ducts in the matrix fin layout, resulting in limited overall heat exchange efficiency.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency liquid-cooled radiator for high heat flux density components, comprising a frame (1), characterized in that: The frame (1) is equipped with a serpentine heat exchange pipe (2), and several heat exchange modules are uniformly arranged on the heat exchange pipe (2) along its medium flow direction. The heat exchange module includes a heat-conducting part (5) sleeved on the heat dissipation pipe (2), two sets of heat exchange fins (3) are symmetrically arranged on both sides of the heat-conducting part (5) and two sets of heat exchange fins (3) are symmetrically arranged on both sides of the heat-conducting part (5) in the longitudinal direction, and a flow guide (4) is provided between each two sets of heat exchange fins (3). The heat exchange fin section (3) includes a fin plate (31), a temporary storage groove (32) is provided in the fin plate (31), and an inlet pipe (33) and an outlet pipe (34) are respectively provided on both sides of the temporary storage groove (32) in the fin plate (31). The flow guide (4) includes a flow guide clamp (41) disposed between two fin plates (31). A cooling air duct (42) is provided in the flow guide clamp (41). The air outlet of the cooling air duct (42) is narrow and is located at the water inlet end of the water inlet pipe (33).

2. The high-efficiency liquid-cooled radiator for high heat flux density components according to claim 1, characterized in that: The heat-conducting part (5) includes a heat-conducting ring (51) sleeved on the heat dissipation pipe (2), and heat-conducting wedge rings (52) are fixed on both sides of the heat-conducting ring (51). The cross-section of the heat-conducting wedge ring (52) is arc-shaped.

3. The high-efficiency liquid-cooled radiator for high heat flux density components according to claim 2, characterized in that: One end of the water inlet pipe (33) and the water outlet pipe (34) are connected to the temporary storage tank (32), and the other end of the water inlet pipe (33) and the water outlet pipe (34) are respectively provided with a water collection cover (35) and a water outlet cover (36). The water inlet pipe (33) and the water outlet pipe (34) are connected to the heat dissipation pipe (2) through the water collection cover (35) and the water outlet cover (36) respectively.

4. The high-efficiency liquid-cooled radiator for high heat flux density components according to claim 3, characterized in that: The water inlet pipes (33) in the two longitudinally symmetrical fin plates (31) on the heat-conducting wedge ring (52) are connected to each other at the ends away from the temporary storage tank (32), and the water outlet pipes (34) in the two longitudinally symmetrical fin plates (31) on the heat-conducting wedge ring (52) are connected to each other at the ends away from the temporary storage tank (32).

5. The high-efficiency liquid-cooled radiator for high heat flux density components according to claim 4, characterized in that: The water collection cover (35) and the water outlet cover (36) are conical and semi-open. The openings of the water collection cover (35) and the water outlet cover (36) are inclined towards the center of the heat conduction ring (51). The water collection cover (35) and the water outlet cover (36) have the same structure but the openings face opposite directions. The water inlet end of the water collection cover (35) flows in the opposite direction to the medium in the heat dissipation pipe (2).

6. The high-efficiency liquid-cooled radiator for high heat flux density components according to claim 1, characterized in that: The fin plate (31) has a second heat exchange air groove (39) at the top away from the heat conduction part (5), and a number of first heat exchange air grooves (38) are opened on both sides of the fin plate (31), forming a heat exchange air duct (37) between every two fin plates (31).

7. The high-efficiency liquid-cooled radiator for high heat flux density components according to claim 6, characterized in that: The flow guide (4) includes a flow guide clamp (41) fixed on the heat conduction ring (51). The flow guide clamp (41) has a concave structure and is adapted to the heat conduction ring (51). A cooling air duct (42) is opened in the flow guide clamp (41). The inner diameter of the air inlet opening of the cooling air duct (42) is larger than the inner diameter of the air outlet opening.

8. The high-efficiency liquid-cooled radiator for high heat flux density components according to claim 7, characterized in that: The cooling duct (42) is divided into two sections with the center as the node. The first section is a rectangular structure and the second section is a circular tube structure.

9. The high-efficiency liquid-cooled radiator for high heat flux density components according to claim 8, characterized in that: The flow guide plate (41) is attached to the corresponding fin plate (31) on both sides. The two ends of the cooling air duct (42) are the air inlet (43) and the air outlet (44), respectively. The air outlet (44) is located at the center between the interface of the water collection cover (35) on both sides and the water inlet pipe (33).

10. The high-efficiency liquid-cooled radiator for high heat flux density components according to claim 9, characterized in that: The top of the flow guide plate (41) is located below the first heat exchange air duct (38).

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