An active enhanced heat sink and heat exchange method based on synthetic double jet technology

Abstract

The present invention belongs to the field of heat dissipation, and specifically relates to an actively enhanced temperature equalizing plate and a heat exchange method based on synthetic dual-jet technology, wherein the actively enhanced temperature equalizing plate based on synthetic dual-jet technology includes an evaporation chamber, a heat pipe and a condensation chamber connected in sequence; a concave cavity is provided at the bottom of the evaporation chamber, the concave cavity includes a bottom surface and a convex inclined surface provided on one side of the bottom surface and a jet exciter I provided on the other side opposite to the convex inclined surface, the jet port of the jet exciter I faces the bottom surface, the jet ejected from the jet port passes through the bottom surface and enters the convex inclined surface, and guides the bubbles separated from the bottom surface and the convex inclined surface to the heat pipe; the outer end surface of the evaporation chamber corresponds to the concave cavity position for installing a heat source.

Description

Technical Field

[0001] The present invention belongs to the field of heat dissipation, and in particular relates to an actively enhanced temperature homogenizing plate and a heat exchange method based on synthetic dual-jet technology. Background Art

[0002] The 3DVC heatsink is an advanced cooling technology that combines traditional vapor chamber (VC) and heat pipe technology. This design overcomes the limitations of two-dimensional heat dissipation through a three-dimensional heat transfer path. This not only eliminates some of the contact thermal resistance between the heat pipe and the VC, but also improves the ability to efficiently dissipate heat from electronic devices in compact, high-density heat sources. However, with the continuous improvement of electronic device performance and power consumption, 3DVC vapor chambers face the following challenges: First, film boiling of the coolant on the heated surface can occur, leading to dry-out, which seriously hinders the vapor chamber's performance and may even cause irreversible damage. Second, as electronic devices evolve towards greater intelligence and miniaturization, current 3DVC vapor chambers often require longer heat pipes to maintain phase change circulation when operating under high heat flux densities, hindering device miniaturization. Therefore, improvements are needed to enhance the performance and stability of existing 3DVC vapor chambers under high heat flux densities, as well as their applicability for cooling in compact spaces. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an actively enhanced temperature homogenizing plate and heat exchange method based on synthetic dual jet technology, which has a compact structure, structural complexity and significantly improved heat exchange effect without increasing energy consumption.

[0004] The present invention provides an active enhanced temperature homogenizing plate based on synthetic double jet technology, comprising an evaporation chamber, a heat pipe and a condensation chamber connected in sequence;

[0005] The bottom of the evaporation chamber is provided with a concave cavity, which includes a bottom surface, a raised inclined surface provided on one side of the bottom surface, and a jet actuator I provided on the other side opposite to the raised inclined surface. The jet port of the jet actuator I faces the bottom surface, and the jet ejected from the jet port passes through the bottom surface and then enters the raised inclined surface, and guides the bubbles separated from the bottom surface and the raised inclined surface to the heat pipe.

[0006] The outer end surface of the evaporation chamber corresponds to the concave cavity position for installing a heat source.

[0007] Furthermore, an inclined surface is provided on the concave cavity at a side opposite to the convex inclined surface, and the jet actuator I is fixedly provided on the inclined surface.

[0008] Furthermore, the inclined surface, the raised inclined surface and the jet actuator I are symmetrically arranged in two groups.

[0009] Furthermore, the upper ends of the two raised inclined surfaces fit together.

[0010] Furthermore, the inclination angle of the inclined surface is 25°-35°.

[0011] Furthermore, the raised inclined surface is an arc surface, and the center of the arc surface is located in the evaporation chamber.

[0012] Furthermore, both ends of the heat pipe are horn structures, and the heat pipe is connected to the evaporation chamber and the condensation chamber through the horn structures.

[0013] Furthermore, the heat pipes are arranged in a plurality of intervals, and the plurality of heat pipes are all disposed within the concave cavity;

[0014] It also includes a plurality of heat dissipation fins arranged longitudinally along the heat pipe;

[0015] Each heat sink fin is connected to all heat pipes.

[0016] Furthermore, a jet exciter II is provided in the condensation chamber.

[0017] The present invention also provides a heat exchange method for an actively enhanced vapor chamber based on synthetic dual jet technology, using the actively enhanced vapor chamber based on synthetic dual jet technology, comprising the following steps:

[0018] The heat source is transferred to the cooling medium in the evaporation chamber through the wall of the evaporation chamber. The cooling medium absorbs the heat, undergoes phase change, and generates bubbles on the wall of the concave chamber. The jet actuator I works to blow away the bubbles, and the jet generates a turbulent vortex structure after passing through the convex inclined surface to increase heat exchange. The bubbles flow along the convex inclined surface into the heat pipe.

[0019] The heat pipe is cooled by external liquid cooling / air cooling. Part of the gas phase working medium condenses and refluxes in the heat pipe and returns to the evaporation chamber. After part of the gas phase working medium enters the condensation chamber through the heat pipe, the sudden increase in the volume of the condensation chamber will cause the gas phase pressure to suddenly decrease, which promotes the condensation of the gas phase. After the gas phase working medium in the condensation chamber is condensed, it returns to the evaporation chamber through the heat pipe in liquid state.

[0020] The present invention has the following beneficial effects: the active enhanced heat spreader based on synthetic dual jet technology improves the flow of the cooling medium by adding an inclined jet actuator I, enhancing convective heat transfer between the liquid phase and the heat exchange surface. It also impacts bubbles attached to the cavity wall, preventing film cooling and dry burning of the internal cooling medium, and improving the heat transfer efficiency of the cavity wall. The addition of the raised inclined surface increases the heat transfer area between the evaporation chamber and the high-heat area of ​​the heat source, increasing the amount of the cooling medium in the gas phase and improving the heat transfer efficiency. Furthermore, the jet is guided to detach bubbles from the bottom surface and the surface of the raised inclined surface, and the bubbles and jet are ultimately directed toward the nozzle of the heat pipe, improving the bubble detachment efficiency, shortening the bubble migration path, accelerating the circulation process between the gas and liquid phases, and reducing the thermal resistance during phase change heat transfer. Furthermore, the jet actuator I and the raised inclined surface cooperate to change the jet direction twice, enhancing the shear effect between the fluid and the heat pipe surface, forming a complex vortex structure and improving the heat transfer efficiency. That is, the present invention couples the jet exciter I with the raised inclined surface, which can greatly enhance the heat exchange effect and achieve the effect of "1+1>2". BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Attachment Figure 1 It is a structural schematic diagram of the present invention;

[0022] Attachment Figure 2 This is a schematic diagram of the structure of the evaporation chamber in the present invention, which is close to the concave cavity.

[0023] Attachment Figure 3 This is a schematic diagram of the structure of the evaporation chamber near the heat pipe in the present invention;

[0024] Attachment Figure 4 This is a schematic diagram of the structure of the condensing chamber near the heat pipe in the present invention;

[0025] Attachment Figure 5 This is a schematic diagram of the structure of the condensation chamber on the side away from the heat pipe in the present invention;

[0026] Attachment Figure 6 Schematic diagram of the grid and boundary conditions of the calculation model of the present invention;

[0027] Attachment Figure 7 Schematic diagram of flow field distribution of the present invention;

[0028] Attachment Figure 8 The heat transfer coefficient comparison chart of different structures.

[0029] In the figure, 1-heat source; 2-evaporation chamber; 21-concave cavity; 211-bottom surface; 212-inclined surface; 22-raised inclined surface; 23-jet actuator I; 231-jet outlet; 3-heat pipe; 4-heat sink fin; 5-condensation chamber; 51-jet actuator II. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0033] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection, electrical connection, physical connection, or wireless communication connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] As attached Figure 1 -Attached Figure 5 As shown, the present invention provides an active enhanced vapor chamber based on synthetic double jet technology, comprising an evaporation chamber 2, a heat pipe 3 and a condensation chamber 5 connected in sequence;

[0036] The bottom of the evaporation chamber 2 is provided with a concave cavity 21. The concave cavity 21 includes a bottom surface 211, a raised inclined surface 22 provided on one side of the bottom surface 211, and a jet actuator I 23 provided on the other side opposite the raised inclined surface 22. The jet port 231 of the jet actuator I 23 faces the bottom surface 211. The jet ejected from the jet port 231 passes through the bottom surface 211 and then enters the raised inclined surface 22, thereby guiding the vapor bubbles separated from the bottom surface 211 and the raised inclined surface 22 to the heat pipe 3.

[0037] The outer end surface of the evaporation chamber 2 corresponds to the concave cavity 21 and is used for installing the heat source 1.

[0038] The active enhanced temperature evaporating plate based on the synthetic dual jet technology provided by the present invention can realize the following heat exchange method.

[0039] The heat source 1 is transferred to the cooling medium in the evaporation chamber 2 through the wall of the evaporation chamber 2. The cooling medium absorbs the heat, undergoes phase change and generates bubbles on the wall of the cavity 21. The jet actuator I 23 works to blow away the bubbles.

[0040] Specifically, the jet generated by the jet actuator I 23 will first enter the bottom surface 211, and after impacting the cooling medium and bubbles on the bottom surface 211, enter the convex inclined surface 22. The convex inclined surface 22 guides the jet and the impacted bubbles to the nozzle of the heat pipe 3;

[0041] After the jet passes through the convex inclined surface 22, a turbulent vortex structure is generated to increase heat exchange, and the bubbles flow along the convex inclined surface 22 into the heat pipe 3, thereby improving the efficiency of bubble separation and the efficiency of the separated bubbles entering the heat pipe 3;

[0042] The heat pipe 3 is cooled by external liquid cooling / air cooling. Part of the gaseous working medium condenses and refluxes in the heat pipe 3 and returns to the evaporation chamber 2. After part of the gaseous working medium passes through the heat pipe 3 and enters the condensation chamber 5, the sudden increase in the volume of the condensation chamber 5 will cause the gaseous phase pressure to suddenly decrease, which promotes the condensation of the gas phase. After the gaseous phase working medium in the condensation chamber 5 is condensed, it becomes liquid and flows back to the evaporation chamber 2 through the heat pipe 3, thereby realizing the recycling of the cooling medium.

[0043] To further illustrate the superior performance of the structure of the present invention, preliminary simulations were conducted to compare the boiling heat transfer performance of several different heat sink structures. The main variables were: the presence or absence of the impact of the jet actuator I 23, the presence or absence of the raised slope 22 structure, and the impact angle of the jet actuator I 23. The calculations used five different structures, as shown in Table 1. The flow field data was simulated using CFD, the turbulence model used was SST kw, the boiling model used was the VOF-Lee model, and the two-dimensional model grid and boundary conditions were as follows: Figure 6As shown, the total number of grids is 92564, the jet velocity is 1 m / s, and it changes sinusoidally at a frequency of 50 Hz. In order to increase the calculation speed, the bottom surface 211 is set to a constant wall temperature of 400 K, and the working fluid used in the calculation is pure water.

[0044] Table 1 Calculation using different structures

[0045]

[0046] Reference Attachment Figure 7 From the flow field distribution diagram, it can be seen that the jet exciter I 23 and the raised slope 22 work together to form an upward velocity gradient on the surface of the raised slope 22, which helps to quickly blow away the bubbles. Observing the streamline direction in the velocity field, it can be seen that after the jet hits the raised slope 22, an upward-turned vortex structure is generated, which increases the disturbance to the fluid and further enhances the convective heat transfer between the liquid phase working medium and the heat exchange surface. Compared with horizontal jets, oblique jets (such as a 30° inclination angle) can enhance the shear effect between the fluid and the surface of the heat pipe 3 by changing the jet direction and form a complex vortex structure. Experiments have shown that when the jet angle increases from horizontal to oblique angle (0° to 30°), the tangential component of the jet velocity increases, the vortex position in the upstream area of ​​the target surface moves forward, and the boundary layer disturbance increases, thereby improving the heat transfer coefficient. In addition, placing the heat pipe 3 above the raised inclined surface 22 can guide the movement trajectory of the fluid and bubbles through the raised inclined surface 22, directly introducing the bubbles into the heat pipe 3, shortening the bubble migration path, accelerating the circulation process between the gas phase and the liquid phase, and reducing the thermal resistance in the phase change heat transfer process.

[0047] By comparing the boiling heat transfer performance of the bottom surface model of the temperature-averaging plate with five different structures, the heat transfer coefficients of different structures are calculated. Figure 8 As shown in the figure, the jet can significantly increase the heat transfer coefficient of the heat exchange surface, and this effect can be enhanced by changing the jet angle to an inclined jet. The flow guide structure can increase the heat transfer area and improve the heat transfer rate, but the increased area leads to a decrease in the heat transfer rate per unit area, resulting in a slight decrease in the heat transfer coefficient. However, coupling the jet actuator I 23 with the raised inclined surface 22 can greatly enhance the heat transfer effect, achieving a "1+1>2" effect.

[0048] It can be seen that the combination of the jet actuator I 23 and the raised inclined surface 22 can greatly improve the heat exchange performance of the core heat dissipation area of ​​the temperature homogenizer, and has good application prospects.

[0049] That is, the actively enhanced temperature equalizing plate based on the synthetic dual-jet technology of the present invention can improve the flow of the cooling medium by adding an inclined jet exciter Ⅰ23, enhance the convective heat exchange between the liquid phase working medium and the heat exchange surface, and at the same time impact the bubbles attached to the wall of the cavity 21, prevent the film cooling and dry burning of the internal cooling working medium, and improve the heat exchange effect of the cavity wall; by adding the raised inclined surface 22, on the one hand, the heat exchange area between the evaporation chamber 2 and the high-temperature area of ​​the heat source 1 can be increased, the gas phase amount of the cooling medium can be increased, and the heat exchange effect can be improved; on the other hand, the jet can be guided so that the jet can detach the bubbles on the bottom surface 211 and the surface of the raised inclined surface 22, and the bubbles and jet can finally flow toward the nozzle of the heat pipe 3, thereby improving the bubble detachment efficiency, shortening the bubble migration path, accelerating the circulation process between the gas phase and the liquid phase, and reducing the thermal resistance in the phase change heat transfer process. Furthermore, the fluidic actuator I 23 and the raised slope 22 work together to alter the jet direction twice, enhancing the shearing effect between the fluid and the surface of the heat pipe 3, forming a complex vortex structure and improving heat transfer. In other words, the present invention's coupling of the fluidic actuator I 23 with the raised slope 22 significantly enhances heat transfer, achieving a "1+1>2" effect.

[0050] In one embodiment, an inclined surface 212 is provided on the concave cavity 21 on the side opposite the raised inclined surface 22, and the jet actuator I 23 is fixedly mounted on the inclined surface 212. In this embodiment, the provision of the inclined surface 212 increases the heat exchange area of ​​the concave cavity 21, thereby improving the heat exchange effect. It also facilitates the tilted placement of the jet actuator I 23 within the concave cavity 21, resulting in an oblique jet flow, further improving the heat exchange effect.

[0051] In one embodiment, two symmetrical groups of inclined surfaces 212, raised inclined surfaces 22, and fluidic actuators I 23 are arranged. This arrangement further enhances heat exchange. Furthermore, the two groups of fluidic actuators I 23 and raised inclined surfaces 22 are independent of each other. The flow fields between the upper ends of the two raised inclined surfaces 22 do not interfere with each other, ensuring their respective flow effects. However, the flow fields interact at the upper ends of the two raised inclined surfaces 22, increasing turbulence and further enhancing heat exchange.

[0052] In one embodiment, the upper ends of the two raised slopes 22 fit together. As part of the wall surface of the cavity 21, the raised slopes 22 absorb heat from the heat source 1, thereby vaporizing the cooling medium. The upper ends of the two raised slopes 22 fit together, creating a sharp-angled structure rather than a flat surface. This ensures that the jet flows through all surfaces of the bottom surface 211 and the raised slopes 22, impacting the bottom surface 211 and the raised slopes 22 to dislodge bubbles (in a flat surface structure, the jet would not impact the flat surface), thus preventing dry burning.

[0053] In one embodiment, the inclined surface 212 has an inclination angle of 25°-35°, preferably 30°. The inclination angle of the inclined surface 212 determines the inclination angle of the jet actuator I 23, which can ensure a better bubble separation effect and improve the heat transfer coefficient.

[0054] In one embodiment, the raised inclined surface 22 is an arc surface, and the center of the arc surface is located in the evaporation chamber 2. This configuration allows the raised inclined surface 22 to smoothly guide the jet flow, thereby reducing flow resistance.

[0055] In one embodiment, the heat pipe 3 has trumpet-shaped structures at both ends, connecting the heat pipe 3 to the evaporation chamber 2 and the condensation chamber 5 via the trumpet-shaped structures. The trumpet-shaped structures at both ends of the heat pipe 3 facilitate the entry of the gaseous working medium in the evaporation chamber 2 into the heat pipe 3 and facilitate the return of the condensed liquid working medium in the condensation chamber 5 to the heat pipe 3. This also increases the connection area between the heat pipe 3 and the evaporation chamber 2 and the condensation chamber 5, improving the stability of the connection.

[0056] In one embodiment, the heat pipes 3 are arranged in a plurality of intervals; the plurality of heat pipes 3 are all arranged within the concave cavity 21; and the heat exchange effect is gradually improved. In this arrangement, the bubbles guided by the convex inclined surface 22 will enter the condensation cavity 5 through the plurality of heat pipes 3.

[0057] The active enhanced vapor chamber based on synthetic dual jet technology further comprises a plurality of heat dissipation fins 4 arranged longitudinally along the heat pipe 3;

[0058] Each heat dissipation fin 4 is connected to all heat pipes 3. The heat dissipation fin 4 can perform air cooling and heat dissipation, thereby improving the heat dissipation effect of the heat pipe 3.

[0059] In one embodiment, a jet actuator II 51 is installed within the condensing chamber 5. This accelerates the flow and heat exchange of the gaseous working medium within the condensing chamber 5, promoting its cooling and the separation and reflow of droplets adhering to the wall. The coordinated condensation between the condensing chamber 5 structure and the jet actuator II 51 also shortens the length of the heat pipe 3 required for condensing the gaseous working medium, reducing the overall volume of the device and enabling rapid cooling of the gaseous working medium in the heat pipe 3, reducing the device's installed volume by over 50%.

[0060] In one embodiment, in order to further increase the condensation rate, the top wall of the condensation chamber may adopt a condensation-promoting structure, such as a super-hydrophobic surface, a conical structure, and a parting flow channel.

[0061] In one embodiment, the jet actuator I 23 and the jet actuator II 51 are synthetic dual-jet actuators. The synthetic dual-jet actuator can increase the jet frequency while maintaining the same power consumption, thereby improving the use effect of the jet.

[0062] The present invention also provides a heat exchange method for an actively enhanced vapor chamber based on synthetic dual jet technology, using the actively enhanced vapor chamber based on synthetic dual jet technology, comprising the following steps:

[0063] The heat source 1 is transferred to the cooling medium in the evaporation chamber 2 through the wall of the evaporation chamber 2. The cooling medium absorbs the heat, undergoes a phase change, and generates bubbles on the wall of the concave cavity 21. The jet actuator I 23 works to blow away the bubbles, and the jet generates a turbulent vortex structure after passing through the convex inclined surface 22 to increase heat exchange. The bubbles flow along the convex inclined surface 22 into the heat pipe 3.

[0064] The heat pipe 3 is cooled by external liquid cooling / air cooling, and part of the gas phase working medium condenses and refluxes in the heat pipe 3 and returns to the evaporation chamber 2. After part of the gas phase working medium passes through the heat pipe 3 and enters the condensation chamber 5, the sudden increase in the volume of the condensation chamber 5 will cause the gas phase pressure to suddenly decrease, which promotes the condensation of the gas phase. After the gas phase working medium in the condensation chamber 5 is condensed, it becomes liquid and flows back to the evaporation chamber 2 through the heat pipe 3.

[0065] The above description is merely an embodiment and does not limit the present invention in any way. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make many possible changes, modifications, or modifications to the technical solution of the present invention into equivalent embodiments with equivalent changes using the technical content disclosed above. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. An active enhanced heat sink based on synthetic dual jet technology, characterized by: It comprises an evaporation chamber (2), a heat pipe (3) and a condensation chamber (5) connected in sequence; A concave cavity (21) is provided at the bottom of the evaporation chamber (2), the concave cavity (21) comprising a bottom surface (211), a convex inclined surface (22) provided on one side of the bottom surface (211), and a jet actuator I (23) provided on the other side opposite to the convex inclined surface (22), the jet port (231) of the jet actuator I (23) facing the bottom surface (211), the jet ejected from the jet port (231) passes through the bottom surface (211) and then enters the convex inclined surface (22), and guides the bubbles separated from the bottom surface (211) and the convex inclined surface (22) to the heat pipe (3); The outer end surface of the evaporation chamber (2) corresponds to the position of the concave cavity (21) for installing the heat source (1).

2. The active enhanced vapor chamber based on synthetic dual jet technology according to claim 1, characterized in that: An inclined surface (212) is provided on the concave cavity (21) on a side opposite to the raised inclined surface (22), and the jet actuator I (23) is fixedly provided on the inclined surface (212).

3. The active enhanced vapor chamber based on synthetic dual jet technology according to claim 1, characterized in that: The inclined surface (212), the raised inclined surface (22) and the jet actuator I (23) are symmetrically arranged in two groups.

4. The active enhanced vapor chamber based on synthetic dual jet technology according to claim 3, characterized in that: The upper ends of the two raised inclined surfaces (22) fit together.

5. The active enhanced vapor chamber based on synthetic dual jet technology according to any one of claims 1 to 4, characterized in that: The inclination angle of the inclined surface (212) is 25°-35°.

6. The active enhanced vapor chamber based on synthetic dual jet technology according to any one of claims 1 to 4, characterized in that: The raised inclined surface (22) is an arc surface, and the center of the arc surface is located in the evaporation chamber (2).

7. The active enhanced vapor chamber based on synthetic dual jet technology according to any one of claims 1 to 4, characterized in that: Both ends of the heat pipe (3) are horn structures, and the heat pipe (3) is connected to the evaporation chamber (2) and the condensation chamber (5) through the horn structures.

8. The active enhanced vapor chamber based on synthetic dual jet technology according to any one of claims 1 to 4, characterized in that: The heat pipes (3) are arranged at intervals in a plurality, and the plurality of heat pipes (3) are all arranged within the concave cavity (21); It also includes a plurality of heat dissipation fins (4) arranged longitudinally along the heat pipe (3); Each heat dissipation fin (4) is connected to all the heat pipes (3).

9. The active enhanced vapor chamber based on synthetic dual jet technology according to any one of claims 1 to 4, characterized in that: A jet exciter II (51) is provided in the condensation chamber (5).

10. A heat exchange method for an active enhanced heat sink based on synthetic dual jet technology, characterized in that: Using the active enhanced vapor chamber based on synthetic dual jet technology as described in any one of claims 1 to 9 comprises the following steps: The heat source (1) is transferred to the cooling medium in the evaporation chamber (2) through the wall of the evaporation chamber (2). The cooling medium absorbs the heat, undergoes phase change, and generates bubbles on the wall of the concave chamber (21). The jet exciter I (23) works to blow away the bubbles, and the jet generates a turbulent vortex structure after passing through the convex inclined surface (22) to increase heat exchange. The bubbles flow along the convex inclined surface (22) into the heat pipe (3). The heat pipe (3) is cooled by external liquid cooling / air cooling, and part of the gas phase working medium condenses and refluxes in the heat pipe (3) and returns to the evaporation chamber (2). After part of the gas phase working medium enters the condensation chamber (5) through the heat pipe (3), the gas phase pressure suddenly decreases due to the sudden increase in the volume of the condensation chamber (5), which promotes the condensation of the gas phase. After the gas phase working medium in the condensation chamber (5) is condensed, it flows back to the evaporation chamber (2) through the heat pipe (3) in liquid form.

Images