Miniature water-cooling radiator structure

Abstract

The utility model discloses a miniature water-cooling radiator structure and aims to overcome the defects that an existing water-cooling radiator is large in noise and unstable in flow. The water cooling device comprises a machine shell, a water cooling cavity is formed in the machine shell, a heat dissipation assembly is connected to the machine shell, and the heat dissipation assembly and the water cooling cavity are correspondingly arranged; a rotor is installed in the water-cooling cavity, an impeller is installed on the rotor, a stator winding is arranged on the periphery of the water-cooling cavity, and the inner wall of the water-cooling cavity is coated with a smooth ceramic coating. The miniature water-cooling radiator structure is low in noise, stable in flow and good in radiating effect.

Description

Technical Field

[0001] This utility model relates to the field of radiator technology, and more specifically, to a micro water-cooled radiator structure. Background Technology

[0002] With the rapid development of electronic technology, the performance of electronic devices such as computer mainframes is constantly improving, and the heat generated during their operation is also increasing. If this heat cannot be dissipated effectively and in a timely manner, it will lead to excessively high internal temperatures, affecting the stability and lifespan of the equipment. Traditional mainframe cooling mainly relies on fans, but fans have limited cooling efficiency in some situations, especially for high-performance mainframes or under high load. Miniature liquid coolers, as an active cooling element, are gradually being used in mainframe cooling systems. However, existing miniature liquid coolers for mainframe cooling are noisy and have unstable airflow, limiting their widespread application in the field of mainframe cooling. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a miniature water-cooled radiator structure with low noise, stable flow rate, and good heat dissipation effect.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a micro water-cooled radiator structure, including a housing, a water-cooling cavity inside the housing, a heat dissipation assembly connected to the housing, the heat dissipation assembly being correspondingly arranged with the water-cooling cavity; a rotor is installed inside the water-cooling cavity, an impeller is installed on the rotor, a stator winding is arranged around the water-cooling cavity, and a smooth ceramic coating is applied to the inner wall of the water-cooling cavity.

[0005] During operation, the stator windings are energized, driving the rotor to rotate, which in turn drives the impeller, thus enabling the flow of water within the water-cooling chamber. Cool water is drawn into the chamber, undergoes heat exchange, and is then discharged. The heat dissipation assembly is positioned corresponding to the water-cooling chamber, and the flowing water cools it. The rotor is mounted inside the water-cooling chamber, while the stator windings are located on its periphery, forming a brushless motor structure. This results in low operating noise and the generation of high torque within a small size. A smooth ceramic coating on the inner wall of the water-cooling chamber reduces frictional resistance during coolant flow, ensuring flow stability and effective heat dissipation.

[0006] The miniature water-cooled radiator structure of this patent application features low noise, stable flow rate, and good heat dissipation effect.

[0007] Preferably, the heat dissipation assembly includes a heat dissipation plate and a heat conduction plate. Several wing plates are spaced apart on the heat dissipation plate and abut against the heat conduction plate. Both the wing plates and the heat conduction plate are placed in the water cooling cavity.

[0008] When in use, the heat sink is installed close to the position where heat dissipation is required. Cooling water comes into contact with the fins and heat-conducting plate to achieve heat exchange, thereby dissipating heat from the heat sink. The fins increase the heat dissipation area, which helps to improve the heat dissipation effect.

[0009] Preferably, the heat sink is tightly connected to the opening end of the water cooling cavity, and a sealing ring is installed between the heat sink and the casing.

[0010] The sealing ring is installed between the heat sink and the casing to ensure the sealing effect of the water cooling cavity and prevent leakage.

[0011] Preferably, several heat dissipation fins are arranged around the positioning winding, and the surface of each heat dissipation fin is coated with a nano-ceramic layer.

[0012] The nano-ceramic layer enhances heat dissipation and corrosion resistance, enabling the water-cooled radiator to quickly dissipate the heat generated during operation. This ensures that even under high load conditions, the water-cooled radiator's temperature remains at a low level, effectively solving the problem of performance degradation or malfunction caused by overheating.

[0013] Preferably, a rotating shaft is installed inside the water-cooling cavity, and the rotor is rotatably mounted on the rotating shaft. A fixing frame is installed inside the water-cooling cavity, and the end of the rotating shaft is connected to the fixing frame.

[0014] The rotor rotates smoothly and reliably on a rotating shaft. Furthermore, the connection between the end of the shaft and the fixed frame further enhances stability.

[0015] Preferably, the housing is provided with an inlet and an outlet, the water cooling chamber is provided with a pumping chamber, the impeller is placed in the pumping chamber, the inlet extends to the side wall of the pumping chamber, and the outlet extends into the water cooling chamber.

[0016] During impeller rotation, cooling water enters the pumping chamber through the inlet. After heat exchange within the water-cooling chamber, the cooling water is discharged out through the outlet. The continuous rotation of the impeller ensures a constant flow of water, thereby guaranteeing the cooling effect.

[0017] Preferably, the housing includes an outer shell and a mounting cylinder, with a positioning ring disposed between the outer shell and the mounting cylinder, a water-cooling cavity disposed in the mounting cylinder, and a stator winding mounted between the outer wall of the mounting cylinder and the inner wall of the positioning ring.

[0018] The stator winding is stably and reliably mounted between the mounting sleeve and the locating ring. A large gap exists between the outer wall of the locating ring and the inner wall of the housing, which facilitates heat dissipation during stator winding operation.

[0019] Preferably, a positioning plate is connected to the positioning ring, and several locking holes are provided on the positioning plate. Several buckles are installed on the stator winding, and the buckles are engaged with the locking holes.

[0020] The positioning plate positions the stator winding, ensuring reliable installation of the stator winding.

[0021] Preferably, the housing is connected to the base plate, and the edge of the base plate is connected to several fastening screws. Preload springs and ring plates are fitted on the fastening screws. A nut is provided at one end of the fastening screw and a slot is provided at the other end. The preload spring abuts between the base plate and the nut. Several spring pieces are arranged circumferentially on the ring plate and are engaged in the slot.

[0022] The housing is mounted on the base plate, facilitating the installation of the entire heatsink in the desired location. A preload spring provides preload force, and the spring clips on the ring engage in slots for positioning.

[0023] Preferably, the impeller includes a mounting base and several blades. The blades are evenly distributed circumferentially on the mounting base, and the blades have an arc structure. The outer wall of the blades is inclined from top to bottom towards the axis of the mounting base.

[0024] The curved blades draw coolant into the water-cooling chamber as they rotate. The inclined outer wall of the blades provides axial thrust to the coolant during rotation, causing it to flow towards the heat dissipation assembly.

[0025] Compared with the prior art, the beneficial effects of this utility model are: (1) The micro water-cooled radiator structure of this patent application has low noise, stable flow, and good heat dissipation effect; (2) The surface of the heat dissipation fins is coated with a nano-ceramic layer, which enhances the heat dissipation performance and corrosion resistance, and can quickly dissipate the heat generated by the water-cooled radiator during operation, ensuring that even under high load operation, the temperature of the water-cooled radiator itself can be controlled at a low level, effectively solving the problem of performance degradation or failure caused by overheating of the water-cooled radiator. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is an exploded view of this utility model.

[0028] Figure 3 This is a cross-sectional view of the present invention.

[0029] Figure 4 This is a structural diagram of the internal structure of the water-cooling cavity of this utility model.

[0030] In the diagram: 1. Housing, 2. Water-cooled cavity, 3. Heat dissipation assembly, 4. Heat sink, 5. Heat conduction plate, 6. Blade, 7. Sealing ring, 8. Rotor, 9. Impeller, 10. Stator winding, 11. Heat dissipation fins, 12. Shaft, 13. Mounting bracket, 14. Bearing, 15. Flow hole, 16. Connecting post, 17. Insertion hole, 18. Water inlet, 19. Water outlet, 20. Pumping chamber, 21. 21. Positioning ring groove, 22. Convex ring, 23. Guide groove, 24. Flange, 25. Through groove, 26. Mounting base, 27. Blade, 28. Outer shell, 29. Mounting cylinder, 30. Positioning ring, 31. Positioning plate, 32. Snap hole, 33. Snap buckle, 34. Top cover, 35. Base plate, 36. Fastening screw, 37. Preload spring, 38. Ring piece, 39. Snap groove, 40. Spring piece, 41. Groove. Detailed Implementation

[0031] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0032] Example 1: A micro water-cooled radiator structure (see...) Figures 1 to 4 The system includes a housing 1, within which a water-cooling cavity 2 is located. The inner wall of the water-cooling cavity 2 is coated with a smooth ceramic coating. This smooth ceramic coating reduces frictional resistance during coolant flow, ensuring flow stability and effective heat dissipation. A heat dissipation assembly 3 is connected to the housing 1, corresponding to the water-cooling cavity 2. The heat dissipation assembly 3 includes a heat sink 4 and a heat conduction plate 5. The heat sink 4 is made of aluminum, and the heat conduction plate 5 is made of copper. Copper has good thermal conductivity, while aluminum is less prone to deformation. Several spaced-apart fins 6 are arranged on the heat sink 4, resting against the heat conduction plate 5. Both the fins 6 and the heat conduction plate 5 are located within the water-cooling cavity 2. The heat sink 4 is tightly connected to the open end of the water-cooling cavity 2, and a sealing ring 7 is installed between the heat sink 4 and the housing 1. The heat sink 4 and the end face of the housing 1 are fastened together with screws.

[0033] A rotor 8 is installed inside the water-cooled cavity 2, and an impeller 9 is mounted on the rotor 8. A stator winding 10 is arranged around the water-cooled cavity 2, and several heat dissipation fins 11 are arranged around the positioning winding. The surface of each heat dissipation fin 11 is coated with a nano-ceramic layer. A rotating shaft 12 is set inside the water-cooled cavity 2, and the rotor 8 is rotatably mounted on the rotating shaft 12. A fixing frame 13 is installed inside the water-cooled cavity 2, and the end of the rotating shaft 12 is connected to the fixing frame 13. A bearing 14 is installed between the rotating shaft 12 and the rotor 8. A permanent magnet is set on the rotor 8, and a winding coil is set on the stator winding 10. When the winding coil is energized, it drives the rotor 8 to rotate. A flow passage hole 15 is set on the fixing frame 13, and a connecting post 16 is set inside the flow passage hole 15. An insertion hole 17 is set on the connecting post 16, and the end of the rotating shaft 12 is installed in the insertion hole 17. A flow passage gap is set between the outer wall of the connecting post 16 and the inner wall of the flow passage hole 15. A connecting rib is set between the outer wall of the connecting post 16 and the inner wall of the flow passage hole 15, and the connecting post 16 is connected through the connecting rib.

[0034] The housing 1 is equipped with a water inlet 18 and a water outlet 19. A water-drawing chamber 20 is located within the water-cooling cavity 2. An impeller 9 is placed within the water-drawing chamber 20. The water inlet 18 extends to the side wall of the water-drawing chamber 20, and the water outlet 19 extends to the lower part of the water-cooling cavity 20. The water-drawing chamber 20 is located at the upper part of the water-cooling cavity 2. A stepped surface is provided on the inner wall of the water-cooling cavity 2 at the lower end of the water-drawing chamber 20. A positioning ring groove 21 is provided on the stepped surface. A protruding ring 22 is provided on the fixing bracket 13, and the protruding ring 22 is fitted into the positioning ring groove 21. A flow guide groove 23 is provided on the lower surface of the fixing bracket 13, communicating with the flow passage 15. The bottom surface of the flow guide groove 23 slopes downwards from the flow passage 15 to both sides. A flange 24 is provided around the outer edge of the lower surface of the mounting bracket 13. The heat-conducting plate 5 is attached to the lower surface of the mounting bracket 13, and the edge of the heat-conducting plate 5 is positioned against the inner wall of the flange 24. A through groove 25 is provided on the heat-conducting plate 5, corresponding to the flow channel 23. After the heat sink 4 is connected to the housing 1, the heat sink 4 abuts against the heat-conducting plate 5 to achieve the positioning of the mounting bracket 13.

[0035] The impeller 9 includes a mounting base 26 and a plurality of blades 27. The blades 27 are evenly distributed circumferentially on the mounting base 26. The blades 27 have an arc-shaped structure, and the outer wall of the blades 27 is inclined from top to bottom towards the axis of the mounting base 26. In this embodiment, eight blades 27 are evenly distributed.

[0036] The housing 1 includes an outer shell 28 and a mounting cylinder 29. A positioning ring 30 is provided between the outer shell 28 and the mounting cylinder 29. A water-cooling cavity 2 is disposed in the mounting cylinder 29. The stator winding 10 is installed between the outer wall of the mounting cylinder 29 and the inner wall of the positioning ring 30. Several heat dissipation fins 11 are connected between the outer wall of the positioning ring 30 and the inner wall of the outer shell 28. The stator winding 10 is stably and reliably installed between the mounting cylinder 29 and the positioning ring 30. There is a large gap between the outer wall of the positioning ring 30 and the inner wall of the outer shell 28, which is beneficial for heat dissipation during the operation of the stator winding 10. The heat dissipation fins 11 improve the connection strength of the positioning ring 30 and have good heat dissipation and heat conduction effects, which is beneficial for the rapid heat dissipation of the stator winding 10 itself. A positioning plate 31 is connected to the positioning ring 30. Several locking holes 32 are provided on the positioning plate 31. Several clips 33 are installed on the stator winding 10 and are engaged with the locking holes 32. The positioning plate 31 and the positioning ring 30 are fastened together by screws.

[0037] The upper end of the housing 1 is connected to a top cover 34, which covers the positioning plate 31. The lower end of the housing 1 is connected to a base plate 35. Several fastening screws 36 are connected to the edge of the base plate 35. Preload springs 37 and ring plates 38 are mounted on the fastening screws 36. One end of the fastening screw 36 is provided with a nut, and the other end is provided with a slot 39. The preload spring 37 abuts between the base plate 35 and the nut. Several spring pieces 40 are arranged circumferentially at intervals on the ring plate 38, and the spring pieces 40 are engaged in the slots 39. The lower surface of the base plate 35 is provided with grooves 41 corresponding to the fastening screws 36. The bottom surface of the grooves 41 is provided with connecting holes, and the fastening screws 36 are inserted into the connecting holes. The ring plates 38 abut against the bottom surface of the grooves 41. The housing 1 is mounted on the base plate 35, which facilitates the installation of the entire heat sink in the position where heat dissipation is required. The preload spring 37 provides preload force, and the spring pieces 40 on the ring plates 38 are engaged in the slots 39 to achieve positioning.

[0038] A miniature water-cooled radiator is fixed to the CPU to dissipate heat. During operation, the stator winding 10 is energized, driving the rotor 8 to rotate, which in turn drives the impeller 9, thus creating water flow within the water-cooling cavity 2. Cool water is drawn into the cavity, undergoes heat exchange, and is then discharged. The heat dissipation assembly 3 is positioned corresponding to the water-cooling cavity 2, and the water flow effectively cools it. The rotor 8 is installed inside the water-cooling cavity 2, while the stator winding 10 is located on its periphery, forming a brushless motor structure. This results in low operating noise and the generation of high torque within a small size. A smooth ceramic coating on the inner wall of the water-cooling cavity 2 reduces frictional resistance during coolant flow, ensuring flow stability and effective heat dissipation.

[0039] Example 2: A micro water-cooled radiator structure (see...) Figures 1 to 4The system includes a housing 1, within which a water-cooling cavity 2 is located. The inner wall of the water-cooling cavity 2 is coated with a smooth ceramic coating. This smooth ceramic coating reduces frictional resistance during coolant flow, ensuring flow stability and effective heat dissipation. A heat dissipation assembly 3 is connected to the housing 1, corresponding to the water-cooling cavity 2. The heat dissipation assembly 3 includes a heat sink 4 and a heat conduction plate 5. The heat sink 4 is made of aluminum, and the heat conduction plate 5 is made of copper. Copper has good thermal conductivity, while aluminum is less prone to deformation. Several spaced-apart fins 6 are arranged on the heat sink 4, resting against the heat conduction plate 5. Both the fins 6 and the heat conduction plate 5 are located within the water-cooling cavity 2. The heat sink 4 is tightly connected to the open end of the water-cooling cavity 2, and a sealing ring 7 is installed between the heat sink 4 and the housing 1. The heat sink 4 and the end face of the housing 1 are fastened together with screws.

[0040] A rotor 8 is installed inside the water-cooled cavity 2, and an impeller 9 is mounted on the rotor 8. A stator winding 10 is arranged around the water-cooled cavity 2, and several heat dissipation fins 11 are arranged around the positioning winding. The surface of each heat dissipation fin 11 is coated with a nano-ceramic layer. A rotating shaft 12 is set inside the water-cooled cavity 2, and the rotor 8 is rotatably mounted on the rotating shaft 12. A fixing frame 13 is installed inside the water-cooled cavity 2, and the end of the rotating shaft 12 is connected to the fixing frame 13. A bearing 14 is installed between the rotating shaft 12 and the rotor 8. A permanent magnet is set on the rotor 8, and a winding coil is set on the stator winding 10. When the winding coil is energized, it drives the rotor 8 to rotate. A flow passage hole 15 is set on the fixing frame 13, and a connecting post 16 is set inside the flow passage hole 15. An insertion hole 17 is set on the connecting post 16, and the end of the rotating shaft 12 is installed in the insertion hole 17. A flow passage gap is set between the outer wall of the connecting post 16 and the inner wall of the flow passage hole 15. A connecting rib is set between the outer wall of the connecting post 16 and the inner wall of the flow passage hole 15, and the connecting post 16 is connected through the connecting rib.

[0041] The rotor 8 is installed in the water-cooling cavity 2, and the stator winding 10 is located around the water-cooling cavity 2. The stator winding 10 uses direct current as its power source, thus forming a brushless DC motor. This motor can generate higher torque output in a smaller size, effectively improving the head and flow rate of the water-cooled radiator. This motor design can reduce internal energy loss and heat generation, while improving the efficiency of converting electrical energy into mechanical energy. Compared with traditional motors, it can improve the performance of the water-cooled radiator by 20%-30% under the same power input.

[0042] The housing 1 is equipped with a water inlet 18 and a water outlet 19. A water-drawing chamber 20 is located within the water-cooling cavity 2. An impeller 9 is placed within the water-drawing chamber 20. The water inlet 18 extends to the side wall of the water-drawing chamber 20, and the water outlet 19 extends to the lower part of the water-cooling cavity 20. The water-drawing chamber 20 is located at the upper part of the water-cooling cavity 2. A stepped surface is provided on the inner wall of the water-cooling cavity 2 at the lower end of the water-drawing chamber 20. A positioning ring groove 21 is provided on the stepped surface. A protruding ring 22 is provided on the fixing bracket 13, and the protruding ring 22 is fitted into the positioning ring groove 21. A flow guide groove 23 is provided on the lower surface of the fixing bracket 13, communicating with the flow passage 15. The bottom surface of the flow guide groove 23 slopes downwards from the flow passage 15 to both sides. A flange 24 is provided around the outer edge of the lower surface of the mounting bracket 13. The heat-conducting plate 5 is attached to the lower surface of the mounting bracket 13, and the edge of the heat-conducting plate 5 is positioned against the inner wall of the flange 24. A through groove 25 is provided on the heat-conducting plate 5, corresponding to the flow channel 23. After the heat sink 4 is connected to the housing 1, the heat sink 4 abuts against the heat-conducting plate 5 to achieve the positioning of the mounting bracket 13.

[0043] Precise calculations and simulations based on fluid mechanics principles enable smoother and more efficient coolant flow within the channels, reducing pressure loss and thus improving the overall efficiency of the water-cooled radiator. Compared to traditional fluid channel designs, pressure loss can be reduced by approximately 30%, and flow rate increased by about 15%.

[0044] The impeller 9 includes a mounting base 26 and a plurality of blades 27. The blades 27 are evenly distributed circumferentially on the mounting base 26. The blades 27 have an arc-shaped structure, and the outer wall of the blades 27 is inclined from top to bottom towards the axis of the mounting base 26. In this embodiment, eight blades 27 are evenly distributed.

[0045] The impeller 9 is manufactured using high-strength, lightweight composite materials (such as carbon fiber reinforced polymer). The blades 27 of the impeller 9 have undergone aerodynamic and hydrodynamic optimization, featuring unique curves and angles that enable more efficient propulsion of the coolant during rotation, reducing turbulence generation. While ensuring structural strength, the upper speed limit of the impeller 9 has been increased, significantly improving the flow rate and head of the water-cooled radiator, and resulting in lower noise and better stability at high speeds.

[0046] The housing 1 includes an outer shell 28 and a mounting cylinder 29. A positioning ring 30 is provided between the outer shell 28 and the mounting cylinder 29. A water-cooling cavity 2 is disposed in the mounting cylinder 29. The stator winding 10 is installed between the outer wall of the mounting cylinder 29 and the inner wall of the positioning ring 30. Several heat dissipation fins 11 are connected between the outer wall of the positioning ring 30 and the inner wall of the outer shell 28. The stator winding 10 is stably and reliably installed between the mounting cylinder 29 and the positioning ring 30. There is a large gap between the outer wall of the positioning ring 30 and the inner wall of the outer shell 28, which is beneficial for heat dissipation during the operation of the stator winding 10. The heat dissipation fins 11 improve the connection strength of the positioning ring 30 and have good heat dissipation and heat conduction effects, which is beneficial for the rapid heat dissipation of the stator winding 10 itself. A positioning plate 31 is connected to the positioning ring 30. Several locking holes 32 are provided on the positioning plate 31. Several clips 33 are installed on the stator winding 10 and are engaged with the locking holes 32. The positioning plate 31 and the positioning ring 30 are fastened together by screws.

[0047] The upper end of the housing 1 is connected to a top cover 34, which covers the positioning plate 31. The lower end of the housing 1 is connected to a base plate 35. Several fastening screws 36 are connected to the edge of the base plate 35. Preload springs 37 and ring plates 38 are mounted on the fastening screws 36. One end of the fastening screw 36 is provided with a nut, and the other end is provided with a slot 39. The preload spring 37 abuts between the base plate 35 and the nut. Several spring pieces 40 are arranged circumferentially at intervals on the ring plate 38, and the spring pieces 40 are engaged in the slots 39. The lower surface of the base plate 35 is provided with grooves 41 corresponding to the fastening screws 36. The bottom surface of the grooves 41 is provided with connecting holes, and the fastening screws 36 are inserted into the connecting holes. The ring plates 38 abut against the bottom surface of the grooves 41. The housing 1 is mounted on the base plate 35, which facilitates the installation of the entire heat sink in the position where heat dissipation is required. The preload spring 37 provides preload force, and the spring pieces 40 on the ring plates 38 are engaged in the slots 39 to achieve positioning.

[0048] The top cover 34 is injection molded from PBT material, and the casing 1 is injection molded from a high-strength, corrosion-resistant, lightweight material. The internal flow channels have been optimized to reduce the size and weight of the miniature water-cooled radiator, while improving the stability and efficiency of the water flow. The mounting bracket 13 is injection molded from a high-strength, corrosion-resistant, lightweight material.

[0049] A miniature water-cooled radiator is fixed to the CPU to dissipate heat. During operation, the stator winding 10 is energized, driving the rotor 8 to rotate, which in turn drives the impeller 9, thus creating water flow within the water-cooling cavity 2. Cool water is drawn into the cavity, undergoes heat exchange, and is then discharged. The heat dissipation assembly 3 is positioned corresponding to the water-cooling cavity 2, and the water flow effectively cools it. The rotor 8 is installed inside the water-cooling cavity 2, while the stator winding 10 is located on its periphery, forming a brushless motor structure. This results in low operating noise and the generation of high torque within a small size. A smooth ceramic coating on the inner wall of the water-cooling cavity 2 reduces frictional resistance during coolant flow, ensuring flow stability and effective heat dissipation.

[0050] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A micro water-cooled radiator structure, characterized in that, It includes a housing, inside which is a water-cooling cavity. A heat dissipation assembly is connected to the housing, and the heat dissipation assembly is correspondingly arranged with the water-cooling cavity. A rotor is installed inside the water-cooling cavity, and an impeller is installed on the rotor. A stator winding is arranged around the water-cooling cavity, and the inner wall of the water-cooling cavity is coated with a smooth ceramic coating.

2. The micro water-cooled radiator structure according to claim 1, characterized in that, The heat dissipation assembly includes a heat sink and a heat conduction plate. Several fins are spaced apart on the heat sink and abut against the heat conduction plate. Both the fins and the heat conduction plate are placed in a water cooling cavity.

3. The micro water-cooled radiator structure according to claim 2, characterized in that, The heat sink is tightly connected to the opening end of the water cooling cavity, and a sealing ring is installed between the heat sink and the casing.

4. The micro water-cooled radiator structure according to claim 1, characterized in that, Several heat dissipation fins are arranged around the positioning winding, and the surface of each heat dissipation fin is coated with a nano-ceramic layer.

5. The micro water-cooled radiator structure according to claim 1, characterized in that, A rotating shaft is installed inside the water-cooling chamber, and the rotor is mounted on the rotating shaft. A fixed frame is installed inside the water-cooling chamber, and the end of the rotating shaft is connected to the fixed frame.

6. The micro water-cooled radiator structure according to claim 1, characterized in that, The casing is equipped with a water inlet and a water outlet. A water pumping chamber is located inside the water cooling cavity. The impeller is placed in the water pumping chamber. The water inlet extends to the side wall of the water pumping chamber, and the water outlet extends into the water cooling cavity.

7. The micro water-cooled radiator structure according to claim 1, characterized in that, The housing includes an outer shell and a mounting cylinder. A positioning ring is provided between the outer shell and the mounting cylinder. The water-cooling cavity is located in the mounting cylinder. The stator winding is installed between the outer wall of the mounting cylinder and the inner wall of the positioning ring.

8. The micro water-cooled radiator structure according to claim 7, characterized in that, A positioning plate is connected to the positioning ring. Several locking holes are provided on the positioning plate. Several buckles are installed on the stator winding. The buckles are engaged with the locking holes.

9. A miniature water-cooled radiator structure according to any one of claims 1 to 8, characterized in that, The housing is connected to the base plate, and the edge of the base plate is connected to several fastening screws. Preload springs and ring plates are fitted on the fastening screws. A nut is provided at one end of the fastening screw and a slot is provided at the other end. The preload spring abuts between the base plate and the nut. Several spring pieces are arranged circumferentially on the ring plate and are engaged in the slot.

10. A miniature water-cooled radiator structure according to any one of claims 1 to 8, characterized in that, The impeller includes a mounting base and several blades. The blades are evenly distributed circumferentially on the mounting base. The blades have an arc structure, and the outer wall of the blades is inclined from top to bottom towards the axis of the mounting base.

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