Low-energy-consumption water-cooling radiator for large-scale cabinet

Abstract

The invention relates to the technical field of cabinet heat dissipation, and discloses a low-energy-consumption water-cooling radiator for a large-scale cabinet, and the radiator comprises a cabinet which serves as a basic component and is used for bearing and connecting a lower structure; the radiator is arranged in the cabinet and is used for radiating heat of the cabinet body; the low-resistance connecting structure is connected with the cabinet and the radiator; the integrated heat dissipation structure is attached to the heating surface of the cabinet; the combined type circulation pipeline comprises a liquid inlet pipe, a liquid outlet pipe and a multi-stage flow divider, and the multi-stage flow divider is connected with an external cooling liquid supply system; and the self-adaptive flow control valve dynamically adjusts the flow of the cooling liquid according to the internal temperature of the cabinet. The invention has the following beneficial effects: when a cooling liquid flows through, the divergent cross section of the main flow channel layer accelerates fluid diffusion and reduces thermal resistance of a boundary layer, the flow deflectors and the spiral turbulent flow fins cooperate to make the cooling liquid better contact with the nano hydrophilic coating, the nano hydrophilic coating reduces a liquid drop contact angle, the cooling liquid forms an ultrathin liquid film on the flow channel wall, and the heat resistance of the boundary layer is improved. And vaporization latent heat release is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of cabinet heat dissipation, and specifically relates to a low-energy-consumption water-cooled radiator for large cabinets. Background Art

[0002] With the rapid development of fields such as data centers and high-performance computing, the integration and power density of electronic components inside large cabinets have been continuously climbing, and the traditional air-cooled heat dissipation method has been difficult to meet its heat dissipation requirements. Water-cooled radiators have gradually become the mainstream choice due to their high heat dissipation performance, but there are still many technical bottlenecks in the existing water-cooled radiators for large cabinets: On the one hand, in terms of heat dissipation efficiency, the heat dissipation structure design of traditional water-cooled radiators is relatively rough. Ordinary water-cooled channels mostly adopt regular straight cylindrical or rectangular designs, and the flow pattern of the coolant in the channels is single, easily forming a laminar flow state, resulting in a large boundary layer thermal resistance and being difficult to quickly take away the heat of the heating elements. At the same time, the contact method between the channel and the heating surface is not tight enough, and the heat conduction efficiency is low, making the temperature of the core components in the cabinet remain high, seriously affecting the stability and service life of the equipment.

[0003] On the other hand, the energy consumption problem is prominent. Most of the existing water-cooled systems adopt a fixed-flow coolant circulation mode and cannot be dynamically adjusted according to the real-time heat load of the cabinet. Under low-load working conditions, a high-flow circulation is still maintained, resulting in the continuous high-power operation of the water pump and causing a large amount of energy waste; while under high loads, it may not be able to dissipate heat in time due to insufficient flow, forcing the system to add additional heat dissipation equipment, further increasing the energy consumption.

[0004] In terms of energy recovery and utilization, traditional water-cooled radiators have obvious deficiencies. A large amount of waste heat carried by the high-temperature coolant discharged from the liquid outlet pipe is directly discharged into the environment without any recovery and utilization, causing great waste of energy; at the same time, the uneven heat dissipation of key parts such as battery packs is likely to cause local overheating and there are potential safety hazards. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the present invention provides a low-energy-consumption water-cooled radiator for large cabinets, which solves the problem that a large amount of waste heat carried by the high-temperature coolant discharged from the liquid outlet pipe is directly discharged into the environment without any recovery and utilization.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A low-energy-consumption water-cooled radiator for large cabinets, comprising: A cabinet, which serves as a basic component for carrying and connecting the lower-level structure; A radiator, which is installed inside the cabinet for heat dissipation of the cabinet body; A low-resistance connection structure for connecting the cabinet and the radiator; Integrated heat dissipation structure, which is fitted and installed on the heat - generating surface of the cabinet; Compound circulation pipeline, including an inlet pipe, an outlet pipe and a multi - stage diverter, and the multi - stage diverter is connected to an external coolant supply system; Adaptive flow control valve, which dynamically adjusts the coolant flow according to the temperature inside the cabinet.

[0007] Preferably, the integrated heat dissipation structure includes a layered micro - channel flow path, and the layered micro - channel flow path is embedded inside the integrated heat dissipation module.

[0008] Preferably, spiral turbulator fins and guide vanes are installed inside the layered micro - channel flow path. The guide vanes are arranged in a spiral line inside the layered micro - channel flow path. The spiral turbulator fins and the nano - hydrophilic coating arranged inside the layered micro - channel flow path form a heat exchange enhancement structure.

[0009] Preferably, one end of the inlet pipe is connected to a low - resistance connection structure. A pressure self - balancing double - flow channel structure is arranged inside the low - resistance connection structure. The double - flow channel structure includes a main path and a bypass path. A flow restrictor and an elastic airbag are arranged in the bypass path.

[0010] Preferably, the low - resistance connection structure adopts a magnetically controlled variable - flow quick - connect joint. A Hall sensor is arranged inside the magnetically controlled variable - flow quick - connect joint, and the Hall sensor is used to detect the flow rate inside the magnetically controlled variable - flow quick - connect joint.

[0011] Preferably, a waste heat recovery mechanism is arranged on the outer wall of the outlet pipe. The waste heat recovery mechanism includes a thermoelectric conversion sheet, the thermoelectric conversion sheet is fitted and installed on the outside of the outlet pipe, and the output end of the thermoelectric conversion sheet is electrically connected to the fan power supply system of the cabinet.

[0012] Preferably, the radiator includes a main board, a cover plate, a composite board and a battery pack water - cooling plate, and the main board and the cover plate are connected by welding.

[0013] Preferably, the adaptive flow control valve includes a temperature sensor. The temperature sensor is installed on one side of the outer wall of the cabinet. A dual - mode switching structure is installed on one side of the outer wall of the composite double - circulation pipeline, and the temperature sensor is electrically connected to the dual - mode switching structure.

[0014] Preferably, the dual - mode switching structure includes a damping ring. The damping ring is arranged inside the composite double - circulation pipeline, and a pressure compensator is also arranged inside the composite double - circulation pipeline.

[0015] The present invention provides a low - energy - consumption water - cooled radiator for a large cabinet, having the following beneficial effects: 1. The present invention forms an efficient heat exchange system through the hierarchical microchannel flow path in the integrated heat dissipation structure, in combination with spiral turbulator fins and a nano-hydrophilic coating. When the coolant flows through, the gradually expanding cross-section of the main flow path layer accelerates the diffusion of the fluid, reducing the boundary layer thermal resistance; the fractal topology of the auxiliary flow path layer guides the tributaries to penetrate the heat-intensive area, and the turbulent cavity at the end breaks the laminar state. The inclined-edge diversion in the circular flow path generates swirling eddies, which cooperate with the spiral turbulator fins to enhance the fluid tumbling. At the same time, the nano-hydrophilic coating reduces the droplet contact angle, enabling the coolant to form an ultra-thin liquid film on the flow path wall and accelerating the release of latent heat of vaporization.

[0016] 2. In the present invention, the adaptive flow control valve combines a temperature sensor and a dual-mode switching structure to achieve intelligent dynamic regulation of the coolant flow rate. In the steady state mode, the damping ring remains unobstructed, and the pressure compensator absorbs minor pulsations to maintain a stable and low-speed circulation of the coolant, reducing the energy consumption of the water pump; in the transient mode, when the local temperature rises sharply, the shape memory alloy skeleton of the damping ring contracts when heated, and the cross-sectional area of the flow path decreases suddenly, doubling the coolant flow rate and forming an enhanced emergency heat dissipation effect.

[0017] 3. The waste heat recovery mechanism on the outer wall of the outlet pipe of the present invention converts waste heat into electrical energy through a thermoelectric conversion sheet, driving the cabinet fan to enhance the air intake volume and forming a closed loop for pre-cooling the coolant and saving energy. Description of the Drawings

[0018] Figure 1 is the three-dimensional view of the water-cooled radiator for the cabinet in the present invention; Figure 2 is the display view of the water-cooled radiator for the cabinet in the present invention; Figure 3 is the schematic view of the water-cooled radiator for the cabinet in the present invention; Figure 4 is Figure 3 the enlarged view of part A in Figure 5 is the exploded view of the water-cooled radiator in the present invention; Figure 6 is the schematic view of the inlet pipe in the present invention; Figure 7 is the display view of the outlet pipe in the present invention; Figure 8 is the schematic view of the adaptive flow control valve in the present invention; Figure 9 is the display view of the hierarchical microchannel flow path in the present invention; Figure 10 is the display view of the integrated heat dissipation structure in the present invention; Figure 11 is Figure 10 the enlarged view of part B in Figure 12 is the display view of the guide vane in the present invention.

[0019] Among them, 1. Cabinet; 2. Radiator; 3. Liquid inlet pipe; 4. Liquid outlet pipe; 5. Multi-stage diverter; 6. Adaptive flow control valve; 7. Stratified microchannel flow path; 8. Spiral flow disturbing fin; 9. Nano hydrophilic coating; 10. Main path; 11. Bypass path; 12. Flow limiter; 13. Elastic airbag; 14. Magnetically controlled variable flow quick connector; 15. Hall sensor; 16. Thermoelectric conversion chip; 17. Main board; 18. Cover plate; 19. Composite board; 20. Battery pack water cooling plate; 21. Temperature sensor; 22. Dual-mode switching structure; 23. Damping ring; 24. Pressure compensator; 25. Flow guiding vane. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Please refer to the attached Figure 1 - attached Figure 12 , the embodiments of the present invention provide a low-energy consumption water-cooled radiator for a large cabinet, including: Cabinet 1, which serves as a basic component for carrying and connecting the lower-level structure; Radiator 2, which is installed inside the cabinet 1 for dissipating heat from the cabinet body; Low-resistance connection structure for connecting the cabinet 1 and the radiator 2; Integrated heat dissipation structure, which is fitted and installed on the heat-generating surface of the cabinet 1; Composite circulation pipeline, including a liquid inlet pipe 3, a liquid outlet pipe 4 and a multi-stage diverter 5, and the multi-stage diverter 5 is connected to an external coolant supply system; Adaptive flow control valve 6, which dynamically adjusts the coolant flow according to the temperature inside the cabinet 1.

[0022] The integrated heat dissipation structure includes a stratified microchannel flow path 7, and the stratified microchannel flow path 7 is embedded inside the integrated heat dissipation module. The inner diameter of the stratified microchannel flow path 7 gradually expands from the liquid inlet end to the liquid outlet end.

[0023] Spiral flow disturbing fins 8 and flow guiding vanes 25 are installed inside the stratified microchannel flow path 7. The flow guiding vanes 25 are arranged in a spiral shape inside the stratified microchannel flow path 7. The spiral flow disturbing fins 8 and the nano hydrophilic coating 9 arranged inside the stratified microchannel flow path 7 form a heat exchange enhancement structure.

[0024] Specifically, the liquid inlet pipe of the integrated heat dissipation structure extracts the coolant supplied by the external coolant supply system. When the coolant is injected into the layered microchannel flow path 7 through the liquid inlet pipe of the integrated heat dissipation structure, the main flow path preferentially undertakes the heat in the high-temperature area. Its gradually expanding cross-sectional flow path accelerates the diffusion of the fluid, and the flow velocity of the coolant increases. In this way, the thickness of the temperature boundary layer formed on the inner wall of the layered microchannel flow path 7 will become thinner, thereby reducing the boundary layer thermal resistance and significantly improving the overall heat dissipation efficiency; As Figure 9 and Figure 10 shown, the fractal topology guidance of the auxiliary flow path penetrates the branch flow into the heat generation dense area to dissipate heat from the heat generation dense area. The coolant in the branch flow merges with the main flow path after flowing through the heat generation dense area, and then the coolant flows into the end turbulent cavity to form a vortex swirling flow, breaking the laminar state of the coolant in the circular flow path. The coolant in the circular flow path is guided by the hypotenuse of the guide vane to generate a swirling vortex. This part of the vortex impacts the spiral turbulator fin 8, causing the spiral turbulator fin 8 to rotate inside the circular flow path. The vortex and the spiral turbulator fin 8 cooperate to enhance the fluid tumbling. Under the flipping effect, the coolant fluid can better contact the nano-hydrophilic coating 9. The nano-hydrophilic coating 9 reduces the droplet contact angle, causing the coolant to form an ultra-thin liquid film on the flow path wall and accelerating the release of latent heat of vaporization; It should be particularly noted that when the branch flow merges with the main flow path, the outlet of the branch flow is exactly located at the position of the spiral turbulator fin 8, which can also provide a force for the spiral turbulator fin 8 to rotate. After the coolant flows through the entire flow path and absorbs heat, the liquid outlet pipe at the other end of the integrated heat dissipation structure leads out the coolant to the coolant supply system, forming a coolant flow loop of the integrated heat dissipation structure.

[0025] One end of the liquid inlet pipe 3 is connected to a low-resistance connection structure. The inside of the low-resistance connection structure is provided with a pressure self-balancing double-flow path structure. The double-flow path structure includes a main path 10 and a bypass 11. The bypass 11 is provided with a flow restrictor 12 and an elastic airbag 13.

[0026] The low-resistance connection structure adopts a magnetically controlled variable-flow quick-connect joint 14. The inside of the magnetically controlled variable-flow quick-connect joint 14 is provided with a Hall sensor 15. The Hall sensor 15 is used to detect the flow velocity inside the magnetically controlled variable-flow quick-connect joint 14.

[0027] Specifically, under normal operating conditions, the coolant is mainly directly transported through the main path 10, and the flow limiter 12 in the bypass 11 maintains the minimum flow rate. When the pressure in the main path 10 suddenly increases, part of the fluid rushes into the bypass 11 to compress the elastic airbag 13 for energy storage; when the pressure decreases, the airbag expands to push the fluid to supplement the main path 10. Inside the magnetically controlled variable current quick connector 14, a magnetic flap level gauge is integrated. The liquid level change of its float is used to characterize the flow rate, and combined with the magnetic detection ability of the Hall sensor 15, a composite system with both flow rate measurement and pressure buffering functions is constructed. The Hall sensor 15 monitors the flow rate in real time to prevent high-speed fluid from inducing pipeline resonance and avoid energy waste in the low-flow rate area. Here, the magnetically controlled variable current quick connector, the magnetic flap level gauge, and the Hall sensor 15 are all existing structures, so no further elaboration will be made.

[0028] A waste heat recovery mechanism is provided on the outer wall of the liquid outlet pipe 4. The waste heat recovery mechanism includes a thermoelectric conversion sheet 16, and the thermoelectric conversion sheet 16 is adhesively installed on the outside of the liquid outlet pipe 4. The output end of the thermoelectric conversion sheet 16 is electrically connected to the fan power supply system of the cabinet 1.

[0029] Specifically, the waste heat of the liquid outlet pipe 4 drives the thermoelectric conversion sheet 16 to generate the Seebeck effect current: the hot end closely adheres to the pipe wall to collect waste heat, and the cold end maintains the temperature difference through the air-cooled fin group; after the generated current is stabilized by the converter, it is preferentially supplied to the cabinet fan to accelerate the rotation of the fan, thereby enhancing the air intake of the radiator 2 and reducing the initial temperature of the coolant, forming an energy-saving closed loop.

[0030] The radiator 2 includes a main board 17, a cover plate 18, a composite board 19, and a battery pack water cooling plate 20. The main board 17 and the cover plate 18 are connected by welding.

[0031] Specifically, the deep penetration welding of the main board 17 and the cover plate 18 forms a continuous vacuum sealing cavity to ensure zero leakage of the coolant. The copper layer of the composite board 19 quickly conducts away the heat of the chip, and the aluminum layer laterally diffuses the heat to the serpentine channel. The serpentine channel in the battery pack water cooling plate 20 forces the coolant to impact the turning wall surface, and the coolant fluidizes into a turbulent flow to eliminate the temperature difference of the battery pack.

[0032] The adaptive flow control valve 6 includes a temperature sensor 21. The temperature sensor 21 is installed on one side of the outer wall of the cabinet 1. A dual-mode switching structure 22 is installed on one side of the outer wall of the composite double-circulation pipeline. The temperature sensor 21 is electrically connected to the dual-mode switching structure 22.

[0033] The dual-mode switching structure 22 includes a damping ring 23. The damping ring 23 is arranged inside the composite double-circulation pipeline, and a pressure compensator 24 is also provided inside the composite double-circulation pipeline.

[0034] Specifically, the coordinated control of the dual-mode switching structure 22 is divided into two modes. First, the steady-state mode. When the temperature sensor 21 detects uniform temperature rise, the damping ring 23 remains unobstructed, and the pressure compensator 24 absorbs minor pulsations. Second, the transient mode. When the local temperature rises sharply, the titanium-nickel shape memory alloy skeleton of the damping ring 23 heats up and contracts, causing the cross-sectional area of the flow channel to decrease suddenly, doubling the coolant flow rate and forming an enhanced emergency heat dissipation effect. At the same time, the pressure compensator 24 compensates the pressure of the flow channel to further ensure the increase in flow rate.

[0035] Working principle: When the electronic components in the cabinet 1 generate heat, the heat is conducted to the hierarchical microchannel flow channel 7. After the coolant is distributed by the multi-stage diverter 5 from the external supply system, the flow rate is dynamically adjusted by the adaptive flow control valve 6 and injected into the system through the inlet pipe 3. In the low-resistance connection structure: Under normal operating conditions, the coolant is directly transported through the main path 10; when there is a pressure fluctuation, the elastic airbag 13 in the bypass 11 compresses to store energy or expands to supplement the flow. The Hall sensor 15 in the magneto-controlled variable-flow quick connector 14 real-time monitors the flow rate. Inside the magneto-controlled variable-flow quick connector 14, a magnetic-flip liquid level gauge is integrated. The liquid level change of its float is used to characterize the flow rate, and combined with the magnetic detection ability of the Hall sensor 15, a composite system with both flow rate measurement and pressure buffering functions is constructed. The Hall sensor 15 real-time monitors the flow rate. When the limit is exceeded, a magnetic field is excited to increase the viscosity of the magnetorheological fluid to suppress vibration and avoid energy waste in the low-flow rate area.

[0036] The inlet pipe of the integrated heat dissipation structure extracts coolant from the external coolant supply system. After the coolant enters the hierarchical microchannel flow channel 7, the gradually expanding cross-sectional flow channel of the main flow channel extends the fluid residence time and fully absorbs the heat in the high-temperature area; the fractal topology of the auxiliary flow channel guides the tributaries to penetrate the heat-generating dense area, and the end turbulent cavity destroys the laminar flow in the dense area; the guide vanes 25 arranged in a spiral shape inside the circular flow channel guide the coolant fluid to form a rotating vortex. This part of the vortex directly impacts the spiral turbulator fins 8 to make them rotate, and cooperates with the spiral turbulator fins 8 to enhance the fluid tumbling; under the flipping effect of the spiral turbulator fins 8, part of the coolant fluid contacts the nano-hydrophilic coating 9, and the nano-hydrophilic coating 9 spreads the coolant into an ultra-thin liquid film, accelerating the release of latent heat of vaporization. Through the cooperation of the spiral turbulator fins 8 and the nano-hydrophilic coating 9, a high-efficiency heat exchange system is formed. When the coolant flows through, the gradually expanding cross-section of the main flow channel accelerates the fluid diffusion and reduces the boundary layer thermal resistance; the fractal topology of the auxiliary flow channel guides the tributaries to penetrate the heat-generating dense area, and the end turbulent cavity breaks the laminar flow state. As Figure 10 and Figure 11 shown, that is the end turbulent cavity. After the coolant flows through the entire flow channel to absorb heat, the coolant is led out by the outlet pipe at the other end of the integrated heat dissipation structure, forming a coolant flow loop of the integrated heat dissipation structure. The gradually expanding flow channel is arranged at the connection between the end turbulent cavity and the main flow channel, expanding the vortex formation area and making the coolant break the laminar flow effect better.

[0037] When the coolant after absorbing heat and rising in temperature flows to the liquid outlet pipe 4: the waste heat recovery mechanism converts waste heat into electrical energy through the thermoelectric conversion sheet 16, drives the fan of the cabinet 1 to enhance the air intake volume, forms a closed loop for pre-cooling the coolant and saving energy, and the adaptive flow control valve 6 switches the working mode according to the signal of the temperature sensor 21: in the steady state mode, the damping ring 23 is fully open, and the pressure compensator 24 absorbs pulsations; in the transient mode, the shape memory alloy skeleton of the damping ring 23 shrinks, causing the cross-sectional area of the flow channel to suddenly decrease. At this time, the flow rate of the coolant doubles, forming an emergency enhanced heat dissipation effect, and the pressure compensator 24 synchronously cancels the water hammer effect. The adaptive flow control valve 6 combines the temperature sensor 21 and the dual-mode switching structure to realize the intelligent dynamic adjustment of the coolant flow rate. In the steady state mode, the damping ring 23 remains unobstructed, and the pressure compensator 24 absorbs minute pulsations to maintain the stable and low-speed circulation of the coolant, reducing the energy consumption of the water pump; in the transient mode, when the local temperature rises sharply, the shape memory alloy skeleton of the damping ring 23 is heated and shrinks, the cross-sectional area of the flow channel suddenly decreases, and the flow rate of the coolant doubles, forming an enhanced emergency heat dissipation effect.

[0038] The radiator 2 assembly ensures the reliability of the system. The deep penetration welding of the main board 17 and the cover plate 18 forms a vacuum sealed cavity to prevent leakage. The serpentine microchannels of the battery pack water cooling plate 20 eliminate the temperature difference of the battery pack through back-and-forth flushing.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-energy water-cooled radiator for a large cabinet, characterized in that Comprising: A cabinet (1), which serves as a basic component for carrying and connecting the lower structure; A radiator (2), which is installed inside the cabinet (1) for heat dissipation of the cabinet body; A low-resistance connection structure connecting the cabinet (1) and the radiator (2); An integrated heat dissipation structure, which is adhesively installed on the heat-generating surface of the cabinet (1); A composite circulation pipeline, including a liquid inlet pipe (3), a liquid outlet pipe (4) and a multi-stage flow divider (5), and the multi-stage flow divider (5) is connected to an external coolant supply system; An adaptive flow control valve (6) that dynamically adjusts the coolant flow according to the internal temperature of the cabinet (1).

2. The low-energy consumption water-cooled radiator for a large cabinet according to claim 1, wherein, The integrated heat dissipation structure includes a layered microchannel flow path (7), and the layered microchannel flow path (7) is embedded inside the integrated heat dissipation module.

3. The low-energy consumption water-cooled radiator for a large cabinet according to claim 2, characterized in that, Inside the layered microchannel flow path (7), there are spiral turbulator fins (8) and guide vanes (25) installed. The guide vanes (25) are arranged in a spiral pattern inside the layered microchannel flow path (7). The spiral turbulator fins (8) and a nano-hydrophilic coating (9) provided inside the layered microchannel flow path (7) form a heat exchange enhancement structure.

4. A low-energy consumption water-cooled radiator for a large cabinet according to claim 1, characterized in that One end of the liquid inlet pipe (3) is connected to the low-resistance connection structure. Inside the low-resistance connection structure, there is a pressure self-balancing double-flow channel structure. The double-flow channel structure includes a main path (10) and a bypass (11), and the bypass (11) is provided with a flow restrictor (12) and an elastic airbag (13).

5. The low-energy consumption water-cooled radiator for a large cabinet according to claim 4, wherein, The low-resistance connection structure adopts a magnetically controlled variable-flow quick-connect joint (14). Inside the magnetically controlled variable-flow quick-connect joint (14), there is a Hall sensor (15), and the Hall sensor (15) is used to detect the flow rate inside the magnetically controlled variable-flow quick-connect joint (14).

6. The low-energy consumption water-cooled radiator for a large cabinet according to claim 1, characterized in that, On the outer wall of the liquid outlet pipe (4), there is a waste heat recovery mechanism. The waste heat recovery mechanism includes a thermoelectric conversion sheet (16), and the thermoelectric conversion sheet (16) is adhesively installed on the outside of the liquid outlet pipe (4). The output end of the thermoelectric conversion sheet (16) is electrically connected to the fan power supply system of the cabinet (1).

7. The low-energy consumption water-cooled radiator for large cabinets according to claim 1, wherein, The radiator (2) includes a main board (17), a cover plate (18), a composite board (19) and a battery pack water cooling plate (20), and the main board (17) and the cover plate (18) are connected by welding.

8. A low-energy consumption water-cooled radiator for a large cabinet according to claim 1, characterized in that, The adaptive flow control valve (6) includes a temperature sensor (21). The temperature sensor (21) is installed on one side of the outer wall of the cabinet (1). On one side of the outer wall of the composite double-circulation pipeline, there is a dual-mode switching structure (22), and the temperature sensor (21) is electrically connected to the dual-mode switching structure (22).

9. The low-energy consumption water-cooled radiator for a large cabinet according to claim 8, characterized in that, The dual-mode switching structure (22) includes a damping ring (23). The damping ring (23) is arranged inside the composite double-circulation pipeline. Inside the composite double-circulation pipeline, there is also a pressure compensator (24).

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