A high-performance gas-liquid two-phase heat exchange radiator and a manufacturing method thereof

Abstract

The application discloses a high-performance gas-liquid two-phase heat exchange radiator and a manufacturing method thereof, and aims to provide a high-performance radiator which can effectively solve the problems of uneven heat distribution, high temperature area mainly concentrated in the substrate heat source area, low fin heat exchange efficiency, large temperature difference and the like of the existing conventional forced air cooling radiator. The radiator comprises a sealed and communicated phase change substrate and a heat exchange area. The phase change substrate is a hollow cavity with one end being opened, and a multi-element sintered powder capillary structure is sintered on the surface of the phase change shell. The heat exchange area comprises a heat exchanger and a sealed cavity composed of a converging chamber, a steam chamber and a communicating chamber. A certain amount of phase change working medium is injected into the sealed cavity. The converging chamber is arranged between the phase change substrate and the heat exchanger as a receiving part of the phase change substrate and the heat exchanger. The steam chamber and the communicating chamber are oppositely arranged on the two sides of the heat exchanger. The steam chamber is communicated with the converging chamber, and the communicating chamber is communicated with the converging chamber and the phase change substrate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of high-power heat dissipation technology, in particular to a high-performance gas-liquid two-phase heat exchange radiator and a manufacturing method thereof. BACKGROUND

[0002] With the increasing market demand for high-power semiconductor devices such as communication, new energy, rail transit, smart grid, medical equipment, etc., GTO, MCT, IGBT and other high-power semiconductor devices have developed rapidly, so today we are facing the more difficult heat dissipation demand situation: first, the packaging density of high-power semiconductor devices is constantly increasing, and the heat flux is constantly increasing; second, due to the continuous improvement of the performance of high-power semiconductor devices, the heat loss is getting higher and higher; in addition, high-power semiconductor devices have penetrated into various fields, and their application environment is constantly expanding, with great differences in the thermal environment used. These trends of high-power semiconductor devices make the overheating problem of electronic equipment more and more prominent.

[0003] The current conventional heat dissipation methods include air cooling and water cooling. Air cooling has been the main application technology for high-power heat dissipation due to its simple structure, high reliability, safety, high IP level, and low cost. However, the conventional air-cooled radiator has the following limitations when operating in a steady state:

[0004] (1) When high-power semiconductor devices operate at high power or high heat flux, the thermal conductivity of conventional forced air-cooled radiators is generally only 130-220 W / m.K. The area around the contact between the radiator substrate and the high-power semiconductor device heat source forms a high-temperature area, and heat is transferred from the heat source to the surrounding area through conduction, forming a high temperature gradient. The closer to the heat source, the higher the temperature, and the farther away from the heat source, the lower the temperature, and the temperature distribution is very uneven.

[0005] (2) The uneven temperature distribution of the substrate causes the temperature of the fins in the high-temperature area of the substrate to be high, and when air flows through, a large temperature difference is formed. The temperature of the fins far from the high-temperature area is low, and the temperature difference between the fins and the air is low, resulting in low heat exchange efficiency.

[0006] (3) In the radial direction of the heat exchanger fins, due to the low thermal conductivity of the fin material, 130-220 W / m.K, a large temperature difference is formed in the radial direction of the fins, generally up to 5-25 K. The distribution is extremely uneven, which seriously affects the heat exchange efficiency of the fins.

[0007] (4) Because the heat exchange performance of the conventional forced air cooling radiator is poor, the conventional forced air cooling heat exchange coefficient is 10-25 W / m2.K, and for high-power heat dissipation requirements, a large enough heat dissipation area is required, and because the fins form a large temperature difference in the radial direction, the temperature difference is generally 5-25 K, the higher the fin, the lower the heat exchange efficiency of the fin, and the volume and weight are greatly increased, so the height of the fin is generally ≤100 mm. In order to meet the heat dissipation requirements, the fin spacing is reduced to increase the heat dissipation area of the radiator, which greatly increases the flow resistance of the radiator.

[0008] In summary, there is an urgent need for a high-performance radiator that can effectively solve the problems of uneven heat distribution, high-temperature area mainly concentrated in the substrate heat source area, low fin heat exchange efficiency, and large temperature difference in the prior art. SUMMARY

[0009] An object of the present application is to provide a high-performance gas-liquid two-phase heat exchange radiator and to provide at least the advantages to be described later.

[0010] The technical solution of the present application is as follows:

[0011] A high-performance gas-liquid two-phase heat exchange radiator, comprising a sealed and communicating phase change substrate and a heat exchange area, the heat exchange area comprising a heat exchanger, characterized in that the inner surface of the phase change shell of the phase change substrate is provided with structure reinforcing columns and sintered with capillary structures, and the structure cover plate is welded to the phase change shell through the welding part to make the phase change substrate into a one-end-open cavity; the heat exchange area further comprises a confluence chamber, a vapor chamber, and a communication chamber forming a sealed cavity, the confluence chamber is placed in the middle of the phase change substrate and the heat exchanger as a receiving part, the vapor chamber and the communication chamber are oppositely arranged on both sides of the heat exchanger and are respectively communicated with the confluence chamber through a vapor delivery pipe and a communication pipe, the communication chamber is further connected to the phase change substrate through a condensate return pipe, and the sealed cavity is filled with phase change working medium.

[0012] Preferably, the phase change substrate specifically comprises a phase change shell, structure reinforcing columns, structure support steps, a welding part, capillary structures, structure locking hole columns, and a structure cover plate, the two short sides and one long side of the phase change shell are vertically provided with structure support steps, the structure reinforcing columns are arranged on the inner surface of the phase change shell, the capillary structures are sintered aluminum or aluminum alloy powder capillary structures with a thickness of 0.5-5 mm, and the structure cover plate is welded above the welding part, and the one-end-open cavity is a phase change substrate vapor-liquid two-phase outlet.

[0013] Preferably, the confluence chamber comprises a confluence chamber shell, a confluence chamber cavity, a vapor-liquid two-phase inlet, a vapor-liquid two-phase outlet, and a flow guide reinforcing plate, the vapor-liquid two-phase outlet is provided as 1-5, and the diameter is φ10.0 mm-φ50.0 mm.

[0014] Preferably, the communication mode of the confluence chamber and the heat exchanger is that the bottom end face of the heat exchanger is parallel to the confluence chamber or has an inclination angle of 0-45°, that is, the steam chamber and the communication chamber arranged on both sides of the heat exchanger are perpendicular to the confluence chamber; or the heat exchanger is rotated by 90° so that the steam chamber and the communication chamber are parallel to the confluence chamber, and the communication chamber is lower than the steam chamber.

[0015] Preferably, when the confluence chamber and the heat exchanger are in the first communication mode, the flow guide reinforcing plate is in a strip shape, has a distance of 5-10 mm from the upper and lower shell faces of the confluence chamber shell, and has an included angle of 35-75° with the vapor-liquid two-phase inlet; when the confluence chamber and the heat exchanger are in the second communication mode, the flow guide reinforcing plate is perpendicular to the vapor-liquid two-phase inlet.

[0016] Preferably, the heat exchanger is a heat exchange fin and a phase change flat tube arranged at intervals, and the heat exchange fin comprises a condensation inner fin.

[0017] Preferably, the welding part is a step face of a step structure support or a welding column grown on the structure reinforcing column and the step face.

[0018] Preferably, the capillary structure is layered, is sintered on the inner surface of the phase change shell and the upper bottom surface of the structure reinforcing column, or is separately sintered on the inner surface of the phase change shell, or is a three-dimensional capillary structure, that is, is sintered on the inner surface of the phase change shell and the outer surface of the structure reinforcing column.

[0019] The application further provides a manufacturing method of the high-performance vapor-liquid two-phase heat exchange radiator.

[0020] a) designing the structure of the phase change base plate according to the heat demand;

[0021] The thickness of the phase change base plate is 10.0-30.0 mm, the thickness of the phase change shell is 3.0-10.0 mm, the phase change shell grows structure locking hole columns, structure reinforcing columns are generated on the inner surface of the phase change shell, and aluminum or aluminum alloy powder capillary structures are sintered on the inner surface;

[0022] The shape of the phase change shell is processed by NC processing of die casting or cold forging, hot forging, the structure cover plate is welded to the phase change shell through the welding part by using a welding sealing process, and a phase change base plate with an open end in a cavity is formed;

[0023] b) aligning and sealingly welding the vapor-liquid two-phase inlet of the confluence chamber with the vapor-liquid two-phase outlet of the phase change base plate;

[0024] c) based on step b), the steam chamber and the communication chamber arranged on both sides of the heat exchanger are respectively welded to the confluence chamber through steam delivery pipes, communication pipes, and the communication chamber is welded to the phase change substrate through a condensate return pipe.

[0025] d) welding a process tail pipe at the end of the heat exchanger away from the phase change substrate;

[0026] e) based on step d, using the process tail pipe to perform a sealing test and a leak detection test on the heat sink, vacuumizing the sealed cavity, and injecting a phase change working medium into the sealed cavity through the process tail pipe;

[0027] f) using a sealing tool to seal the process tail pipe, and using TIG, high-power laser or electron beam welding to melt and seal the sealing point.

[0028] Preferably,

[0029] In the step a):

[0030] The structural locking hole column has a diameter of 5.0 mm to 15.0 mm, the structural reinforcing column has a diameter of 3.0 mm to 15.0 mm, and the distribution interval of the structural reinforcing column in the shell is 10.0 mm to 100.0 mm, and the particle diameter of the capillary structure is 20 mesh to 200 mesh;

[0031] When the welding sealing process is vacuum brazing or atmosphere brazing, the welding part is a step surface of an equal-height structural support step and a structural reinforcing column, and the height of the two is 10.0 mm to 15.0 mm, at this time the structural cover plate is a flat plate without an opening, and the thickness is 10.0 mm to 15.0 mm; when the welding sealing process is TIG, MIG, high-power laser, or electron beam, the welding part is a welding column with a diameter of 3.0 mm to 10.0 mm grown on the structural reinforcing column, at this time the structural cover plate is a flat plate with a circular opening, and the size of the circular opening is larger than the diameter of the welding column by 0.05 mm to 2.0 mm;

[0032] In the step d), the diameter of the process tail pipe is φ2.0 mm to φ5.0 mm;

[0033] In the step e):

[0034] The leak detection test is performed by a helium mass spectrometry leak detection device, the helium leak detection pressure is 600±50 Kpa, the time is 60 to 90 s, and the judgment standard is <1.0*10-7 mbar.l / s;

[0035] The vacuum degree requirement of the vacuumization is <10 Pa;

[0036] The mass of the phase change working fluid is calculated based on the capillary thickness, the vapor cavity volume, and the heat transfer rate.

[0037] Beneficial effects

[0038] The high-performance gas-liquid two-phase heat exchange radiator provided by this invention has good heat dissipation performance. It can effectively save heat dissipation area for high-power semiconductor devices with high power heat dissipation requirements and has high heat exchange efficiency. The phase change substrate of this invention can ensure uniform temperature distribution and significantly reduce temperature difference in forced convection applications. Attached Figure Description

[0039] Figure 1 A structural diagram of the high-performance gas-liquid two-phase heat exchange radiator provided by the present invention;

[0040] Figure 2 A schematic diagram of the first connection method between the manifold and the heat exchanger;

[0041] Figure 3 A schematic diagram of the second connection method between the manifold and the heat exchanger;

[0042] Figure 4 for Figure 2 Structural diagram of the junction room under the connection mode;

[0043] Figure 5 for Figure 3 Structural diagram of the junction room under the connection mode;

[0044] Figure 6 This is a structural diagram of a phase change substrate;

[0045] Figure 7 This is a structural diagram of a layered capillary structure when the welded part in a phase change substrate consists of a structural support step and a structural reinforcing column of equal height.

[0046] Figure 8 A structural diagram of a three-dimensional capillary structure when the welding part in a phase change substrate consists of a structural support step surface of equal height and a structural reinforcing column.

[0047] Figure 9 This is a structural diagram of the layered capillary structure in a phase change substrate where the welded portion is a structural support step surface and a welded column.

[0048] Figure 10 These are schematic diagrams of two structures for the condenser fins in a heat exchanger.

[0049] In the diagram: 1. Phase change substrate; 2. Heat exchanger; 3. Manifold; 4. Steam chamber; 5. Connecting chamber; 6. Steam delivery pipe; 7. Connecting pipe; 8. Condensate return pipe; 9. Process tailpipe; 10. Phase change shell; 11. Structural reinforcing column; 12. Structural support step; 13. Welding section; 14. Capillary structure; 15. Structural locking hole column; 16. Structural cover plate; 17. Phase change substrate vapor-liquid two-phase outlet; 18. Welding column; 19. Manifold shell; 20. Vapor-liquid two-phase inlet; 21. Vapor-liquid two-phase outlet; 22. Flow guiding reinforcing plate; 23. Heat exchange fins; 24. Phase change flat tube; 25. Condensate inner fins; 26. Condensate return inlet. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0051] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not imply the presence or addition of one or more other elements or combinations thereof.

[0052] like Figure 1 As shown, the present invention provides a high-performance gas-liquid two-phase heat exchange radiator, including a sealed and connected phase change substrate 1 and a heat exchange zone. The phase change substrate 1 is a hollow cavity with one end open, and its phase change shell surface is sintered with a multi-element sintered powder capillary structure. The heat exchange zone includes a heat exchanger 2 and a sealed cavity composed of a manifold 3, a steam chamber 4, and a connecting chamber 5. A certain amount of phase change working fluid is injected into the sealed cavity. Specifically, the manifold 3 is placed in the middle of the phase change substrate 1 and the heat exchanger 2 as the receiving part. The steam chamber 4 and the connecting chamber 5 are arranged opposite each other on both sides of the heat exchanger 2. The steam chamber 4 is connected to the manifold 3 through a steam delivery pipe 6, and the connecting chamber 5 is connected to the manifold 3 through a connecting pipe 7. The connecting chamber 5 is also connected to the phase change substrate 1 through a condensation return pipe 8. The steam delivery pipe 6 and the condensate return pipe 8 are made of aluminum or aluminum alloy round pipes. The phase change working medium is required to have a phase change temperature suitable for the application environment (the commonly used phase change temperature is generally between -50℃ and 100℃), a high latent heat of vaporization (80J / g to 2260J / g), chemical stability and compatibility with the shell material, and to meet the environmental requirements of ODP and GWP, including water, ammonia, fluorinated alkanes, fluorinated ethers, cycloalkanes and Freon substitutes, etc.

[0053] like Figures 2-5As shown, the manifold 3 includes a manifold shell 19, a manifold chamber, a vapor-liquid two-phase inlet 20, a vapor-liquid two-phase outlet 21, and a flow-guiding reinforcing plate 22. The vapor-liquid two-phase outlet 21 is generally set to 1 to 5, with an outlet diameter of φ10.0mm to φ50.0mm. The processing material of the manifold is generally 1-series aluminum alloy, 3-series aluminum alloy, 5-series aluminum alloy, 6-series aluminum alloy, etc. When the phase change substrate 1 absorbs heat, causing the phase change working medium to boil and the vapor-liquid two-phase working medium fluid generated by the phase change will enter the manifold 3 through the vapor-liquid two-phase inlet 20 and flow out through the vapor-liquid two-phase outlet 21.

[0054] There are two connection methods between the manifold 3 and the heat exchanger 2, both of which are beneficial for the reflux of condensate. The first connection method is that the bottom end face of the heat exchanger 2 is parallel to the manifold 3 or at an angle of 0°-45°. That is, the steam chamber 4 and the connecting chamber 5 set on both sides of the heat exchanger 2 are perpendicular to the manifold 3. In this case, the flow guiding plate 22 is strip-shaped, 5mm to 10mm away from the upper and lower shell surfaces of the manifold 3, and forms a certain angle with the vapor-liquid two-phase inlet 20, generally 35° to 75°. The second connection method is that the steam chamber 4 and the connecting chamber 5 are parallel to the manifold 3, and the connecting chamber 5 needs to be lower than the steam chamber 4. In this case, the flow guiding plate 22 is perpendicular to the vapor-liquid two-phase inlet 20.

[0055] The core module of the high-performance gas-liquid two-phase heat exchange radiator of the present invention is a phase change substrate 1, such as... Figures 6-9 As shown, the condensate return inlet 26 of the phase change substrate 1 is used to communicate with the heat exchange zone communication chamber 5 through the condensate return pipe 8. The phase change substrate 1 also includes a phase change shell 10, a structural reinforcing column 11, a structural support step 12, a welding part 13, a capillary structure 14, a structural locking hole column 15, and a structural cover plate 16. The two short sides and one long side of the phase change shell 10 are provided with a structural support step 12 perpendicularly. The structural reinforcing column 11 is arranged on the inner surface of the phase change shell 10. The capillary structure 14 is a sintered aluminum or aluminum alloy powder capillary structure with a thickness of 0.5mm to 5mm. The structural cover plate 16 is welded to the top of the welding part 13. The cavity with one open end is the phase change substrate vapor-liquid two-phase outlet 17.

[0056] like Figures 7-9 As shown, the welding portion 13 and capillary structure 14 of the phase change substrate 1 in this invention have two implementations: the welding portion 13 can be formed by the step surface of the structural support step 12 and the upper bottom surface of the structural reinforcing column 11, or it can be formed by the step surface and the welding column 18 extending from the structural reinforcing column 11. The capillary structure 14 can be layered or three-dimensional. When it is layered, the capillary structure 14 can be sintered on the inner surface of the phase change shell 10 and the upper bottom surface of the structural reinforcing column 11, or sintered separately on the inner surface of the phase change shell 10; when the capillary structure 14 is three-dimensional, it is sintered on the inner surface of the phase change shell 10 and the outer surface of the structural reinforcing column 11.

[0057] The capillary structure 14 is a connected small capillary hole, which greatly improves the vapor bubble generation vaporization core, reduces the boiling vaporization superheat, greatly improves the boiling heat transfer coefficient, and the heat transfer coefficient is 2x105 W / m2.K-3.5x106 W / m2.K, which is much larger than the heat transfer coefficient of the convection heat transfer, and better meets the high-power heat exchange and high heat flux density heat exchange demand, and because the inner surface of the phase change substrate 1 is sintered with the capillary structure 14, the superheat of the phase change working medium boiling vaporization is effectively reduced, the surface temperature of the phase change substrate 1 can be better reduced, and the working temperature of the high-power semiconductor device can be better controlled.

[0058] As shown in Figure 10 The heat exchanger 2 includes heat exchange fins 23, phase change flat tubes 24, and condensation inner fins 25. According to different condensation requirements, the condensation inner fins 25 can be selected to have a straight tooth structure or a staggered tooth structure. When the condensation inner fins 25 have an inner tooth structure, the condensation can be dispersed, the liquid film thickness can be reduced, the heat transfer coefficient of the vapor-liquid two-phase working medium and the phase change flat tube heat exchange can be increased, and the condensation heat transfer effect can be strengthened. The vapor-liquid two-phase fluid latent heat and sensible heat condensation has a good improvement effect.

[0059] The operation principle of the high-performance gas-liquid two-phase heat exchange radiator of the present application is that the high-power semiconductor device is locked on the phase change substrate 1, and the heat loss generated during the operation of the device is transmitted to the surface of the phase change substrate 1, and then transmitted to the inner surface of the phase change substrate 1 through the phase change shell 10 of the phase change substrate. The heat is transmitted to the capillary structure 14 and the inner surface of the phase change shell 10 through heat conduction, so that heat exchange occurs between the heat and the phase change working medium. The phase change working medium absorbs heat to generate vapor bubbles, and changes from a liquid state to a vapor state through boiling heat exchange and phase change. The vapor-liquid two-phase phase change working medium is transmitted upward along the sealed cavity, and then flows into the steam chamber 4 along the steam delivery pipe 6 after being converged in the converging chamber 3, and then is transmitted into each phase change flat tube 24. The phase change steam flows to the distal end along the phase change flat tube 24, and in this process, heat is transmitted to the outer wall of the phase change flat tube 24 and then to the heat exchange fins 23. The latent heat and sensible heat of the air flowing through the heat exchange fins 23 and the outer wall of the phase change flat tube 24 are exchanged. The phase change working medium in the cavity of the heat exchanger 2 is condensed into a liquid state, and then flows back to the phase change substrate 1 through the communication pipe 7 and the condensation return pipe 8. The air flowing outside the heat exchanger forms a temperature rise, and the heat is taken out of the system.

[0060] Based on the high-performance gas-liquid two-phase heat exchange radiator of the present application, a manufacturing method of the radiator is also provided, which includes the following steps:

[0061] a) designing the structure of the phase change substrate according to the heat demand:

[0062] The thickness of the phase change substrate 1 is 10.0mm-30.0mm, the thickness of the phase change shell 10 is 3.0mm-10.0mm, the phase change shell 10 grows out of the structural locking hole column 15, the structural reinforcing column 11 is generated on the inner surface of the phase change shell 10, and the aluminum or aluminum alloy powder capillary structure 14 is sintered on the inner surface;

[0063] The outer shape of the phase change shell 10 is processed by NC processing of die casting or cold forging, hot forging, and the structural cover plate 16 is welded on the phase change shell 10 by the welding sealing process through the welding part 13, forming a phase change substrate 1 with one end opening as a cavity;

[0064] b) Align the vapor-liquid two-phase inlet 20 of the converging chamber 3 with the vapor-liquid two-phase outlet 17 of the phase change substrate and seal weld;

[0065] c) Based on step b), the steam chamber 4 and the communication chamber 5 arranged on both sides of the heat exchanger 2 are respectively welded and connected with the converging chamber 3 through the steam delivery pipe 6 and the communication pipe 7, and the communication chamber 5 is welded in the phase change substrate 1 through the condensate return pipe 8.

[0066] d) Welding process tail pipe 9 at the end of the heat exchanger 2 away from the phase change substrate 1;

[0067] e) Based on step d, use the process tail pipe 9 to seal test and leak test the heat exchanger 2, vacuum the sealed cavity, and inject the phase change working medium into the sealed cavity through the process tail pipe 9;

[0068] f) Use the sealing tool to seal the process tail pipe 9, and melt and seal the sealing point with TIG, high-power laser or electron beam welding.

[0069] Wherein,

[0070] In the above step a), the diameter of the structural locking hole column 15 is 5.0mm-15.0mm, the diameter of the structural reinforcing column 11 is 3.0mm-15.0mm, the distribution interval in the shell is 10.0mm-100.0mm, the particle diameter of the capillary structure 14 is 20-200 mesh; When the welding sealing process is vacuum brazing or atmosphere brazing, the welding part 13 is a step surface of an equal-height structural support step and a structural reinforcing column, and the height of the two is 10.0mm-15.0mm, at this time the structural cover plate 16 is a flat plate without opening, and the thickness is 10.0mm-15.0mm; When the welding sealing process is TIG, MIG, high-power laser or electron beam, the welding part 13 is a welding column 18 with a diameter of 3.0mm-10.0mm grown on the structural reinforcing column and a step surface, at this time the structural cover plate 16 is a flat plate with a circular hole, and the size of the circular hole is larger than the diameter of the welding column 18 by 0.05mm-2.0mm.

[0071] In the step b), the diameter of the process tail pipe is φ2.0mm-φ5.0mm.

[0072] In the step e), the leak detection test is performed by a helium mass spectrometry leak detection device, the helium leak detection pressure is 600±50Kpa, the time is 60-90s, the judgment standard is <1.0*10-7mbar.l / s; the vacuum degree required by the vacuum extraction is <10Pa; the mass of the phase change working medium is calculated according to the thickness of the capillary structure and the steam cavity and the heat transport capacity.

Claims

1. A high-performance gas-liquid two-phase heat exchange radiator, comprising a sealed, interconnected phase change substrate and a heat exchange zone, wherein the heat exchange zone includes a heat exchanger, characterized in that, The phase change substrate has structural reinforcing columns arranged on the inner surface of the phase change shell and a capillary structure sintered thereon. The structural cover plate is welded to the phase change shell through a welding part, making the phase change substrate a cavity with one end open. The heat exchange zone also includes a manifold chamber, a steam chamber, and a connecting chamber forming a closed cavity. The manifold chamber is placed between the phase change substrate and the heat exchanger as the receiving part between them. The steam chamber and the connecting chamber are arranged opposite to each other on both sides of the heat exchanger and are connected to the manifold chamber through a steam delivery pipe and a connecting pipe, respectively. The connecting chamber is also connected to the phase change substrate through a condensation return pipe. The closed cavity is injected with a phase change working fluid. The manifold chamber includes a manifold chamber shell, a manifold chamber cavity, a vapor-liquid two-phase inlet, a vapor-liquid two-phase outlet, and a flow guiding reinforcing plate. The vapor-liquid two-phase outlet is set to 1 to 5, with a diameter of φ10.0mm to φ50.0mm. One end opening of the phase change substrate is connected to the vapor-liquid two-phase inlet on the manifold chamber.

2. The high-performance gas-liquid two-phase heat exchange radiator according to claim 1, characterized in that, The phase change substrate specifically includes a phase change shell, structural reinforcing columns, structural support steps, a welding part, a capillary structure, a structural locking hole column, and a structural cover plate. The phase change shell has structural support steps perpendicular to its two short sides and one long side. The structural reinforcing columns are arranged on the inner surface of the phase change shell. The capillary structure is a sintered aluminum or aluminum alloy powder capillary structure with a thickness of 0.5mm to 5mm. The structural cover plate is welded to the top of the welding part. The cavity with one open end is the vapor-liquid two-phase outlet of the phase change substrate.

3. The high-performance gas-liquid two-phase heat exchange radiator according to claim 2, characterized in that, The connection between the manifold and the heat exchanger is as follows: the bottom end face of the heat exchanger is parallel to the manifold or at an angle of 0°-45°, that is, the steam chamber and the connecting chamber located on both sides of the heat exchanger are perpendicular to the manifold; or the heat exchanger is rotated 90° so that the steam chamber and the connecting chamber are parallel to the manifold, and the connecting chamber is lower than the steam chamber.

4. The high-performance gas-liquid two-phase heat exchange radiator according to claim 3, characterized in that, When the manifold and the heat exchanger are connected in the first manner, the flow guiding plate is strip-shaped, with a distance of 5mm to 10mm between it and the upper and lower shell surfaces of the manifold shell, and an angle of 35° to 75° with the vapor-liquid two-phase inlet; when the manifold and the heat exchanger are connected in the second manner, the flow guiding plate is perpendicular to the vapor-liquid two-phase inlet.

5. The high-performance gas-liquid two-phase heat exchange radiator according to claim 1, characterized in that, The heat exchanger consists of spaced heat exchange fins and phase change flat tubes, and the heat exchange fins include condenser inner fins.

6. The high-performance gas-liquid two-phase heat exchange radiator according to claim 1, characterized in that, The welded part is either the step surface of a structural support step of equal height and a structural reinforcing column, or a welded column extending from the structural reinforcing column and the step surface.

7. The high-performance gas-liquid two-phase heat exchange radiator according to claim 1, characterized in that, The capillary structure is layered and is sintered on the inner surface of the phase change shell and the upper bottom surface of the structural reinforcing column, or sintered separately on the inner surface of the phase change shell, or it is a three-dimensional capillary structure, that is, sintered on the inner surface of the phase change shell and the outer surface of the structural reinforcing column.

8. A method for manufacturing a high-performance gas-liquid two-phase heat exchange radiator as described in claim 3, characterized in that, include: a) Design the structure of the phase change substrate according to thermal requirements: The phase change substrate has a thickness of 10.0 mm to 30.0 mm, the phase change shell has a thickness of 3.0 mm to 10.0 mm, structural locking holes are grown inside the phase change shell, structural reinforcing columns are generated on the inner surface of the phase change shell, and aluminum or aluminum alloy powder capillary structures are sintered on the inner surface. The phase change shell is shaped by die casting or cold forging and hot forging using NC machining, and the structural cover plate is welded to the phase change shell through the welding part using a welding sealing process to form a cavity-shaped phase change substrate with one end open. b) Align the vapor-liquid two-phase inlet of the manifold with the vapor-liquid two-phase outlet of the phase change substrate and seal and weld them together; c) Based on step b), the steam chamber and the connecting chamber located on both sides of the heat exchanger are respectively welded to the manifold through steam delivery pipe and connecting pipe, and the connecting chamber is welded to the phase change substrate through condensation return pipe; d) Weld a process tailpipe to the end of the heat exchanger furthest from the phase change substrate; e) Based on step d, the heat sink is subjected to sealing and leak testing using the process tailpipe, the sealed cavity is evacuated, and a phase change working fluid is injected into the sealed cavity through the process tailpipe. f) Use a sealing fixture to seal the process tail pipe, and use TIG, high-power laser or electron beam welding to melt and seal the sealing point.

9. The method for manufacturing a high-performance gas-liquid two-phase heat exchange radiator according to claim 8, characterized in that, In step a): The diameter of the locking hole post of the structure is 5.0 mm to 15.0 mm, the diameter of the reinforcing post of the structure is 3.0 mm to 15.0 mm, the distribution spacing of the posts within the shell is 10.0 mm to 100.0 mm, and the particle diameter of the capillary structure is 20 mesh to 200 mesh. When the welding sealing process is vacuum brazing or atmosphere brazing, the welded part is the step surface of the structural support step and the structural reinforcing column of equal height, with a height of 10.0mm to 15.0mm. In this case, the structural cover plate is a flat plate without openings, and its thickness is 10.0mm to 15.0mm. When the welding sealing process is TIG, MIG, high-power laser, or electron beam, the welded part is a welding column with a diameter of 3.0mm to 10.0mm extending from the structural reinforcing column and the step surface. In this case, the structural cover plate is a flat plate with a circular hole, and the size of the circular hole is 0.05mm to 2.0mm larger than the diameter of the welding column. In step d), the diameter of the process tailpipe is φ2.0mm~φ5.0mm; In step e): The leak detection test was conducted using a helium mass spectrometer leak detection device. The helium leak detection pressure was 600±50 kPa, the time was 60 to 90 seconds, and the judgment standard was <1.0*10-7 mbar.l / s. The vacuum level required for the vacuuming process is <10Pa; The mass of the phase change working fluid is calculated based on the capillary thickness, the vapor cavity volume, and the heat transfer rate.

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