Vein-imitating shutter type radiator

Abstract

The invention discloses a vein-imitating shutter type radiator, which relates to the technical field of radiators, and comprises an inlet, a cooling liquid flow channel, vein-imitating fin radiating belts and an outlet, the inlet and the outlet are respectively communicated with two ends of the cooling liquid flow channel, and the vein-imitating fin radiating belts are fixedly connected with the outer wall of the cooling liquid flow channel. The vein-imitating fin heat dissipation belt is composed of a plurality of heat dissipation belt units, each heat dissipation belt unit comprises a wavy heat dissipation belt frame and vein-imitating fins, and vein-imitating hollowed-out structures are arranged on curved fin bodies of the vein-imitating fins. The vein-imitating hollow-out structures and the cylindrical drainage blocks are in gradient distribution from the middle to the two ends on the curved-surface fin body, and a series of problems of'airflow short circuit, heat exchange dead angles and sudden increase of local resistance 'of a traditional uniform hollow-out fin and'high flow resistance, poor airflow permeability and insufficient light weight' of a hollow-out-free fin are solved. And meanwhile, the requirements for heat exchange efficiency, flow resistance, structural stability and light weight are met.

Description

Technical Field

[0001] This invention relates to the field of radiator technology, specifically to a leaf vein-inspired louvered radiator. Background Technology

[0002] A radiator is an air-cooled cooling device for engines, cooling the high-temperature coolant. Its working principle is as follows: High-temperature coolant, having absorbed heat from the cylinder block and cylinder head in the engine block water jacket, is pressurized by a water pump and enters the upper chamber of the radiator. Through the distribution structure of the upper chamber, it evenly flows into multiple parallel cooling pipes. As the high-temperature coolant flows within the cooling pipes, it first transfers heat to the metal walls of the pipes; the pipe walls then transfer heat to the corrugated cooling strips that are tightly fitted to the cooling pipes through welded joints. Cool air passes laterally through the radiator core via the oncoming wind during vehicle movement or the forced airflow generated by the fan during idling. The cool air undergoes forced convection heat exchange with the high-temperature cooling pipes and strips, carrying away the heat and dissipating it into the atmosphere. The cooled coolant then collects in the lower chamber of the radiator and flows back to the engine block water jacket through the return pipe, completing the circulation. The continuous circulation of the tube-type radiator, the continuous flow of coolant, and the forced convection of air can stably control the engine's operating temperature within a reasonable range, avoiding problems such as reduced power and accelerated wear caused by overheating or overcooling.

[0003] As a key component of radiators, heat dissipation fins significantly expand the effective heat exchange area and enhance basic heat exchange capacity. The fin shape of the heat dissipation fins directly determines their heat dissipation efficiency, thus affecting the overall efficiency of the radiator. Traditional louvered finned heat dissipation fins are simple to manufacture and widely used, but they severely obstruct airflow, requiring high-power cooling fans, resulting in extremely high energy consumption, and the gaps in the fins are prone to clogging.

[0004] Therefore, a leaf vein-inspired louvered radiator was proposed to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a leaf vein-inspired louvered radiator, comprising an inlet, a coolant flow channel, a leaf vein-inspired fin heat dissipation strip, and an outlet, wherein the inlet and outlet are respectively connected to both ends of the coolant flow channel, and the leaf vein-inspired fin heat dissipation strip is fixedly connected to the outer wall of the coolant flow channel. The leaf vein-inspired finned heat sink consists of multiple heat sink units. Each heat sink unit includes a wavy heat sink frame and multiple leaf vein-inspired fins fixed at equal intervals on the heat sink frame. Each leaf vein-inspired fin comprises a curved fin body, a leaf vein-inspired hollow structure, and a cylindrical airflow guide block. The cross-sectional contour of the curved fin body satisfies the formula... Where A is the undulation height of the metal sheet surface contour, B is the distribution density of the contour ripples in the length direction, C is the initial shape of the contour at the starting position, and D is the reference position of the entire metal sheet. Multiple leaf vein-like hollow structures are provided on the curved fin body, and cylindrical drainage blocks fixed on the curved fin body are provided between the leaf vein-like hollow structures.

[0006] As a preferred embodiment, the leaf vein-like hollow structure includes a main vein, large branch veins, small branch veins, large fine veins, and small fine veins. Large branch veins and small branch veins connected to the main vein are provided on both the left and right sides of the main vein. Large fine veins connected to the large branch veins are provided on both the left and right sides of the large branch veins. Small fine veins connected to the small branch veins are provided on both the left and right sides of the small branch veins.

[0007] Preferably, the angle between the major branch and the main vein is α1, the angle between the minor branch and the main vein is also α1, the angle between the major fine vein and the major branch is α2, and the angle between the minor fine vein and the minor branch is also α2.

[0008] Preferably, the spacing between multiple leaf vein-like perforated structures on the same curved fin body is set in a gradient manner, with the spacing between adjacent leaf vein-like perforated structures being smaller closer to the two ends of the curved fin body.

[0009] Preferably, on the same curved fin body, the number of cylindrical drainage blocks between adjacent leaf vein-like hollow structures is set in a gradient manner, with fewer cylindrical drainage blocks between adjacent leaf vein-like hollow structures closer to the two ends of the curved fin body.

[0010] Preferably, the diameter D of the cylindrical drainage block satisfies 0.01≤D≤0.05mm and the height H satisfies 0.01≤H≤0.05mm.

[0011] The present invention has the following beneficial effects: The leaf vein-like perforated structure and cylindrical flow guide block of this invention are both gradient-distributed from the center to both ends on the curved fin body. The curved fin body has a continuous smooth surface conforming to a cosine curve, with periodically gradual changes in gaps and no sharp corner abrupt changes. It is optimized to address the core pain points of rectangular fins, such as "high airflow impact resistance, easy thickening of laminar boundary layer, many heat transfer dead zones, and high aerodynamic noise". This invention achieves a performance leap from dimensions such as reducing flow resistance, enhancing turbulent heat transfer, suppressing dust accumulation noise, and improving structural stability. It is especially suitable for the comprehensive requirements of tube-and-strip radiators for low resistance, high efficiency, quiet operation, and long life. The addition of a leaf vein-like perforated structure and gradient distribution on the fin (curved fin body) combines the characteristics of "excellent heat conduction and mass transfer performance" of the leaf vein structure. The leaf vein-like perforated structure has the advantages of "low-resistance flow guidance, lightweight, and expanded flow channels". After gradient distribution, it has the characteristics of "adapting to the flow pattern along the flow path and precise flow control".

[0012] This invention represents a lightweight upgrade and efficiency optimization of traditional fins (without perforation or with uniform perforation) and gradient porous fins. The design of the leaf vein-like perforated structure differs from porous structures with micropores. The gradient distribution involves a stepwise change in the density of the leaf vein-like perforated structure along the airflow direction (i.e., perpendicular to the coolant flow channel) from the outer layer of the fin towards the core heat exchange zone. This solves a series of problems associated with traditional uniformly perforated fins, such as "airflow short-circuiting, heat exchange dead zones, and sudden increases in local resistance," and with non-perforated fins, such as "high flow resistance, poor airflow penetration, and insufficient lightweighting." It simultaneously addresses heat exchange efficiency, flow resistance, structural stability, and lightweight requirements. Adding gradient-distributed cylindrical guide blocks between the leaf vein-like perforated structures is a refined and optimized design that combines the low-resistance flow around the cylindrical curved surface, gentle disturbance, and anti-dust accumulation characteristics with the advantages of gradient distribution in adapting to the flow pattern and precise flow control. This design differs from the "hard obstruction, strong disturbance, and high resistance" of traditional strip-shaped guide blocks, and also makes up for the shortcomings of gradient perforation in "passive flow guidance and difficulty in eliminating heat transfer dead zones." The core characteristics of the cylindrical guide blocks are curved surface facing the flow, late boundary layer separation around the flow, and no sharp-corner vortex regions. The gradient distribution allows its size, arrangement density, and protrusion height to be aligned with the airflow direction from windward to leeward, achieving multiple advantages such as "low-resistance flow control, gentle enhanced heat transfer, anti-dust accumulation and low noise, and high structural stability." Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the heat dissipation frame in this invention; Figure 3 This is a schematic diagram of the arrangement of leaf vein-like fins in the invention; Figure 4 This is a schematic diagram of the curved fin body in this invention; Figure 5 This is a schematic diagram of the leaf vein-like hollow structure in this invention; Figure 6 This is a schematic diagram of the cylindrical drainage block in this invention; Figure 7 This is a schematic diagram of the curved fin body and cylindrical drainage block in this invention.

[0014] In the diagram: 1, Inlet; 2, Coolant flow channel; 4, Outlet; 5, Heat dissipation frame; 7, Curved fin body; 8, Leaf vein-like hollow structure; 9, Cylindrical drainage block; 10, Main vein; 11, Large branch vein; 12, Small branch vein; 13, Large and small veins; 14, Small and small veins. Detailed Implementation

[0015] 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.

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Embodiments of the present invention refer to Figures 1 to 7 A leaf-vein-inspired louvered radiator includes an inlet 1, a coolant channel 2, leaf-vein-inspired finned heat dissipation strips, and an outlet 4. The inlet 1 and outlet 4 are connected to both ends of the coolant channel 2, and the leaf-vein-inspired finned heat dissipation strips are fixedly connected to the outer wall of the coolant channel 2. The coolant channel 2 and the leaf-vein-inspired finned heat dissipation strips are made of one of the following materials: graphite, titanium, niobium, aluminum, copper, or stainless steel. When the radiator is working, high-temperature coolant flows within the coolant channel 2, transferring heat to the channel wall. Because the leaf-vein-inspired finned heat dissipation strips are tightly welded to the outer wall of the coolant channel 2, heat is quickly transferred to them. Due to the uniform and thin thickness of the leaf-vein-inspired finned heat dissipation strips, heat loss during conduction is extremely low, allowing heat to diffuse quickly to the windward and leeward sides of the heat dissipation strips and the entire surface of the strips, creating a uniform temperature field. Subsequently, the blown-in air exchanges heat with the leaf-vein-inspired finned heat dissipation strips, and finally, the air carries the heat out.

[0018] The fractal structure of plant leaf veins is a highly efficient fluid transport system evolved in nature over a long period. The main vein is responsible for long-distance, low-resistance airflow, while the branch veins and fine veins are responsible for uniform airflow distribution throughout the entire surface. This characteristic perfectly matches the core requirements of radiator fins: low-resistance air intake facing the wind, uniform airflow distribution in the middle, and smooth heat release in the leeward direction. With the addition of a gradient distribution, precise adaptation of the flow pattern along the path can be further achieved. Utilizing the excellent heat conduction and mass transfer properties exhibited by the leaf vein structure, the fin shape of the heat dissipation strip can be designed to reduce the airflow obstruction effect of traditional heat dissipation strips, improve the tendency for gaps in the heat dissipation strips to become clogged, and increase heat dissipation efficiency while reducing the energy consumption of the cooling fan and the volume occupied by the fan, thereby improving the overall efficiency of the radiator.

[0019] refer to Figures 1 to 3The leaf vein-inspired finned heat sink consists of multiple heat sink units. Each heat sink unit includes a wavy heat sink frame 5 and leaf vein-inspired fins fixed to the frame 5. On each side of the frame 5, multiple inclined leaf vein-inspired fins are linearly arranged at intervals L0, where 1.2mm ≤ L0 ≤ 1.5mm. The leaf vein-inspired fins are inclined at an angle α0 on the frame 5, where 25° ≤ α0 ≤ 30°. In this embodiment, α0 = 27° and L0 = 1.5mm are satisfied. The airflow entering the leaf vein-like fin heat sink is blocked and guided by the narrow slits between the louvered leaf vein-like fins. The sharp edges of the slits cut the airflow, causing the laminar boundary layer, which was originally close to the surface of the leaf vein-like fins and had a very low flow velocity, to break. The orderly laminar parallel flow of the airflow is forced to change its flow direction and finally becomes a disordered vortex motion, which violently washes over the surface of the heat sink, tears and thins the boundary layer, greatly reduces the air thermal resistance, and the heat transfer becomes efficient convective heat transfer. The hot air is discharged from the radiator, and the cooled coolant flows out from outlet 4. refer to Figures 1 to 5 The leaf vein-inspired fin includes a curved fin body 7, a leaf vein-inspired hollow structure 8, and a cylindrical drainage block 9. The cross-sectional profile of the curved fin body 7 satisfies the formula... Where A is the undulation height of the metal sheet surface profile, B is the distribution density of the profile ripples along the length direction, C is the initial shape of the profile at the starting position, and D is the reference position of the entire metal sheet. Multiple leaf vein-like perforated structures 8 are provided on the curved fin body 7, and cylindrical guide blocks 9 fixed on the curved fin body 7 are arranged between the leaf vein-like perforated structures 8. Air enters from the windward side of the curved fin body 7, which is the smooth arc surface of the curved fin body 7. When the airflow comes into contact, it will flow smoothly around the curved surface without impact. When passing through the cylindrical guide blocks 9, the airflow flows around the curved surface. Due to the change in curvature of the curved surface, the flow velocity will decelerate on the windward side, accelerate on the side, and recover at the tail, forming a continuous change. This naturally generates small-scale, highly uniform turbulence, which gently disrupts the laminar boundary layer on the surface of the curved fin body 7 to improve heat transfer efficiency.

[0020] refer to Figure 4 , Figure 5 The leaf vein-inspired hollow structure 8 is designed based on the vein patterns of a leaf. It includes a main vein 10, large branch veins 11, small branch veins 12, large fine veins 13, and small fine veins 14. Large branch veins 11 and small branch veins 12, connected to the main vein 10, are located on both sides of the main vein 10. Large fine veins 13, connected to the large branch veins 11, are located on both sides of the large branch veins 11. Small fine veins 14, connected to the small branch veins 12, are located on both sides of the small branch veins 12. The lengths of the leaf veins at each level in the leaf vein-inspired hollow structure 8 satisfy the gradient relationship L. n =K l ·L n-1 , 0.25≤k l≤1, the width of each level of leaf vein satisfies the gradient relationship W n =k w ·W n-1 , where 0.6≤k w ≤1. The width of the main vein 10 is W1=0.1mm and the length is L1=0.95mm; the width of the large branch vein 11 is W2=0.1mm and the length is L2=0.3mm; the width of the small branch vein 12 is W3=0.08mm and the length is L3=0.23mm; the width of the large fine vein 13 is W4=0.05mm and the length is L4=0.06mm; the width of the small fine vein 14 is W5=0.04mm and the length is L5=0.05mm. The leaf vein-like hollow structure 8 designed in this invention can improve the problems of high airflow resistance and easy dust accumulation while ensuring sufficient fin strength.

[0021] There are four major branches 11 located on both sides of the main vein 10, and the angle between the major branches 11 and the main vein 10 is α1=60°; there are three minor branches 12 located on both sides of the main vein 10, and the angle between the minor branches 12 and the main vein 10 is also α1=60°; the distance between two adjacent branches is equal.

[0022] The angle between the large fine vein 13 and the large branch vein 11 is α2=25°. There are five large fine veins 13 on both sides of the large branch vein 11. The angle between the small fine vein 14 and the small branch vein 12 is also α2=25°. There are five small fine veins 14 on both sides of the small branch vein 12.

[0023] Each curved fin body 7 has seven leaf vein-like perforated structures 8. The spacing between the leaf vein-like perforated structures 8 on the same curved fin body 7 is gradient-shaped, with the spacing between adjacent leaf vein-like perforated structures 8 decreasing as they approach the ends of the curved fin body 7. The gradient spacing is S. c And satisfy S c(n-1) =K s ·S cn , 0.5≤k s ≤1.8; Spacing S in this embodiment C1 =0.8mm,K s =0.6. When the airflow passes through the leaf vein-like hollow structure 8, the main vein 10 guides the airflow in, while the remaining lower-level leaf veins (large branch veins 11, small branch veins 12, large fine veins 13, and small fine veins 14) restrict the airflow velocity, forcing the airflow to adhere to the surface of the coolant channel 2. This ensures the uniformity of the flow distribution in the core area without increasing the flow resistance of the outer layer, thereby reducing the total flow resistance coefficient of the radiator and increasing the unit airflow throughput.

[0024] On the same curved fin body 7, the number of cylindrical drainage blocks 9 between adjacent leaf vein-like hollow structures 8 is arranged in a gradient manner, with fewer cylindrical drainage blocks 9 between adjacent leaf vein-like hollow structures 8 closer to the ends of the curved fin body 7. The diameter D of the cylindrical drainage block 9 is 0.05mm and the height H is 0.05mm. The cylindrical drainage blocks 9 on the curved fin body 7 are arranged in columns, with ten blocks per column. There are six areas on the curved fin body 7 where cylindrical drainage blocks 9 are arranged. The six areas correspond to the positions between the seven leaf vein-like hollow structures 8, decreasing in a gradient of three columns, two columns, and one column, decreasing from the center of the curved fin body 7 towards both ends. The spacing between two adjacent columns within the same area is S. Y =0.02mm.

[0025] The working principle of all the content in the above embodiments is as follows: When the radiator is working, the high-pressure fan blows in air. The airflow impacts the sharp, narrow edges of the louvered heat dissipation fins, forcing a sharp change in its direction of motion. It also generates intense friction with the inner walls of the fins, while the confined space of the fins intensifies internal molecular collisions within the airflow. At this point, traditional louvered finned radiators generate significant air resistance. The right-angled frontal edges of the rectangular fins combined with the equal-width flow gaps are the core sources of this resistance. Airflow impacting the right-angled frontal edges creates strong boundary layer separation, generating large-scale vortices. The equal-width gaps cause the boundary layer to thicken continuously along the flow path, increasing frictional resistance and ultimately resulting in high total flow resistance and insufficient airflow.

[0026] The core geometric feature of the cosine curve curved fin body 7 used in this invention is that the fin is continuously curved in a cosine wave shape along the airflow direction, and two adjacent cosine wave curved fin bodies 7 are placed side by side, with the gap in the middle also in the shape of a cosine curve. This is completely different from the straight-edge flow-facing structure of rectangular fins. This design is superior to traditional rectangular fins in terms of reducing flow resistance, enhancing turbulent heat transfer, suppressing dust accumulation noise, and improving structural stability. Meanwhile, the windward side of the curved fin body 7 is a smooth arc surface with a cosine curve. When the airflow comes into contact, it will flow smoothly around the curved surface without impact. The boundary layer separation point is significantly moved to the point where the curvature of the curve is maximum, generating only a small-scale wake vortex, eliminating the resistance loss of right-angle impact flow. The cosine wave-shaped fins make the flow gap between adjacent fins change periodically. When the airflow passes through, it will accelerate moderately in the contraction section and decelerate slowly in the expansion section, forming a natural flow regulation. This avoids the frictional resistance soaring and the heat transfer coefficient rapidly decreasing with the flow distance caused by the continuous thickening of the boundary layer in the equal-width gap, which ultimately leads to a significant decrease in the heat transfer efficiency of the middle and rear section of the fin. This achieves high-efficiency heat transfer with low resistance, breaking through the bottleneck of "increased heat transfer inevitably increases resistance" of rectangular fins.

[0027] Upon entering, the air comes into contact with the cylindrical guide block 9. The cylindrical guide block 9 features a curved surface facing the airflow, late boundary layer separation, and no sharp-cornered vortex regions. The absence of sharp windward corners allows the airflow to smoothly flow around the curved surface, significantly shifting the boundary layer separation point backward. Only a small-scale wake vortex is formed at the tail of the cylindrical guide block 9, avoiding localized high drag caused by hard obstruction and preventing energy loss due to large-scale vortices, unlike square guide blocks. The cylindrical guide block 9 on the windward side disperses the high-speed, wall-hugging flow on the fin surface, preventing airflow short-circuiting; the central cylindrical guide block 9 maintains turbulence intensity within the optimal heat transfer range, preventing boundary layer re-thickening; and the cylindrical guide block 9 provides refined disturbance to the outgoing airflow, improving the convective heat transfer coefficient in the traditionally weak heat transfer zone on the leeward side. The smooth curved surface has no sharp corners, grooves, or stagnant areas where airflow stops. When dust particles come into contact with the curved surface, they are quickly carried away by the airflow and cannot adhere or deposit. This improves the problem of dust accumulation at sharp corners and dust hiding in grooves of the guide block. Through precise size and arrangement gradient, there are no low-speed stagnation areas, and no space for dust to accumulate. At the same time, the curved surface on the windward side can block large dust particles, which can play a primary curved surface filtration role and reduce the entry of large particles into the deep layers of the fins.

[0028] The leaf vein-inspired hollow structure 8 is an innovative and optimized solution that integrates the fractal hierarchical flow guidance, network structure reinforcement characteristics, and gradient distribution along the flow path of natural leaf veins. The leaf vein-inspired hollow structure 8 replicates the fractal network structure of the main vein, branch veins, and veinlets of a plant leaf: the main vein 10 is a large-sized continuous flow channel, while the branch veins (large branch veins 11, small branch veins 12) and veinlets (large veinlets 13, small veinlets 14) are progressively branching medium-sized channels, forming a network-like hollow structure with main channel guidance and branch flow distribution. This achieves multiple performance leaps in terms of flow field control, heat transfer enhancement, structural lightweighting, dust accumulation resistance, and noise reduction. The fractal network channels of the leaf vein-inspired hollow structure 8 allow airflow to flow in multiple directions and branches, superimposed with gradient distribution along the flow path to achieve full-domain turbulence enhancement under low resistance, improving the problems of thickened boundary layer, numerous heat transfer dead zones, and heat transfer attenuation in the middle and later stages of traditional finned laminar flow. At the bifurcation points from the main vein to the branch veins and then to the veinlets, the airflow naturally generates small-scale, highly uniform turbulence due to the abrupt change in channel cross-section and flow direction. This gently disrupts the laminar boundary layer on the surface of the fins (curved fin body 7). The low disturbance of the main vein on the windward side allows the airflow to enter quickly, while the moderate disturbance of the branch veins in the middle maintains the turbulent state and prevents the boundary layer from thickening. The high disturbance of the veinlets on the leeward side enhances heat transfer at the outlet, keeping the heat transfer coefficient high throughout the entire length and area of ​​the fins. At the same time, the network of bifurcation channels of the veins allows the turbulence to cover every corner of the fins, effectively increasing the heat transfer area.

[0029] 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 leaf vein-inspired louvered radiator, characterized in that, It includes an inlet (1), a coolant flow channel (2), a leaf vein-like fin heat dissipation strip and an outlet (4). The inlet (1) and the outlet (4) are respectively connected to the two ends of the coolant flow channel (2), and the leaf vein-like fin heat dissipation strip is fixedly connected to the outer wall of the coolant flow channel (2). The leaf vein-inspired fin heat sink consists of multiple heat sink units. Each heat sink unit includes a wavy heat sink frame (5) and multiple leaf vein-inspired fins fixed at equal intervals on the heat sink frame (5). The leaf vein-inspired fins include a curved fin body (7), a leaf vein-inspired hollow structure (8), and a cylindrical drain block (9). The cross-sectional contour of the curved fin body (7) satisfies the formula A is the height of the undulation of the metal sheet surface contour, B is the distribution density of the contour ripples in the length direction, C is the initial shape of the contour at the starting position, and D is the reference position of the metal sheet as a whole. Multiple leaf vein-like hollow structures (8) are provided on the curved fin body (7), and cylindrical drainage blocks (9) fixed on the curved fin body (7) are provided between the leaf vein-like hollow structures (8).

2. The leaf vein-inspired louvered radiator according to claim 1, characterized in that, The leaf vein-like hollow structure (8) includes a main vein (10), a large branch vein (11), a small branch vein (12), a large fine vein (13), and a small fine vein (14). The main vein (10) is provided with a large branch vein (11) and a small branch vein (12) connected to the main vein (10) on both the left and right sides. The large branch vein (11) is provided with a large fine vein (13) connected to the large branch vein (11) on both the left and right sides. The small branch vein (12) is provided with a small fine vein (14) connected to the small branch vein (12) on both the left and right sides.

3. A leaf vein-inspired louvered radiator according to claim 2, characterized in that, The angle between the major branch (11) and the main branch (10) is α1, the angle between the minor branch (12) and the main branch (10) is also α1, the angle between the major fine branch (13) and the major branch (11) is α2, and the angle between the minor fine branch (14) and the minor branch (12) is also α2.

4. A leaf vein-inspired louvered radiator according to claim 3, characterized in that, The spacing between multiple leaf vein-like hollow structures (8) on the same curved fin body (7) is set in a gradient manner. The closer to the two ends of the curved fin body (7), the smaller the spacing between adjacent leaf vein-like hollow structures (8).

5. A leaf vein-inspired louvered radiator according to claim 4, characterized in that, On the same curved fin body (7), the number of cylindrical drainage blocks (9) between adjacent leaf vein hollow structures (8) is set in a gradient. The closer to the two ends of the curved fin body (7), the fewer the number of cylindrical drainage blocks (9) between adjacent leaf vein hollow structures (8).

6. A leaf vein-inspired louvered radiator according to claim 5, characterized in that, The diameter D of the cylindrical drainage block (9) satisfies 0.01≤D≤0.05mm and the height H satisfies 0.01≤H≤0.05mm.

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