Liquid cooling unit

Abstract

A liquid cooling unit comprises a box body with an air inlet and an air outlet, a first radiator and a cooling fan, the first radiator and the cooling fan are arranged in the box body, the two faces of the first radiator face the air inlet and the air outlet respectively, the cooling fan is arranged at the position between the first radiator and the air outlet, and the first radiator is provided with a first water inlet and a first water outlet. A first water inlet pipe, a first water outlet pipe and a first water pump are further arranged in the box body, the first water pump is arranged on the first water outlet pipe, the first water inlet pipe is connected to the first water inlet, and the first water outlet pipe is connected to the first water outlet. The first radiator, the cooling fan, the first water inlet pipe, the first water outlet pipe and the first water pump are integrated in the box body of the liquid cooling unit, so that the liquid cooling modular arrangement of the liquid cooling unit is realized, the space utilization rate is very high, the structure is very compact, the installation efficiency is high, and the labor cost is low.

Description

Technical Field

[0001] This utility model relates to the field of power electronic heat dissipation technology, and in particular to a liquid cooling unit. Background Technology

[0002] In the power electronics industry, traditional liquid cooling units are typically modular, meaning the heat exchanger is housed separately within a casing. The heat exchanger is separate from components such as the inlet and outlet pipes, water pump, expansion tank, makeup pump, temperature sensors, pressure sensors, and check valves. Installing a liquid cooling unit requires first installing the heat exchanger casing, and then connecting the stainless steel inlet and outlet pipes, water pump, expansion tank, makeup pump, temperature sensors, pressure sensors, and check valves externally. This setup results in very low space utilization, wasted space, and a non-compact structure. Furthermore, the installation process is cumbersome, demanding high standards and requiring significant labor costs, as it involves connecting numerous components like the inlet and outlet pipes.

[0003] Therefore, there is an urgent need to develop a liquid cooling unit that is compact in structure and easy to install. Utility Model Content

[0004] The purpose of this utility model is to avoid the shortcomings of the prior art and provide a liquid cooling unit with a compact structure and simple installation, thereby solving the above-mentioned technical problems.

[0005] A liquid cooling unit includes: a housing having an air inlet and an air outlet, a first radiator and a cooling fan disposed within the housing, the two sides of the first radiator facing the air inlet and the air outlet respectively, the cooling fan being disposed between the first radiator and the air outlet, the first radiator having a first water inlet and a first water outlet, the housing also having a first water inlet pipe, a first water outlet pipe and a first water pump, the first water pump being disposed on the first water outlet pipe, the first water inlet pipe being connected to the first water inlet, and the first water outlet pipe being connected to the first water outlet.

[0006] Preferably, the above-mentioned housing is further provided with a second radiator, a second water pump, a second water inlet pipe and a second water outlet pipe. The second radiator is provided with a second water inlet and a second water outlet. The second water pump is provided on the second water outlet pipe. The second water inlet pipe is connected to the second water inlet. The second water outlet pipe is connected to the second water outlet. The first radiator and the second radiator are arranged to be tilted left and right to form a V shape.

[0007] Preferably, the V-shaped angle formed by the combination of the first radiator and the second radiator is between 30 degrees and 150 degrees.

[0008] Preferably, the aforementioned housing includes a top plate, a bottom plate, a front plate, a rear plate, a left side plate, and a right side plate. The top of the first radiator is fixed to the left side plate, and the bottom of the first radiator is fixed to the bottom plate. The top of the second radiator is fixed to the right side plate, and the bottom of the second radiator is fixed to the bottom plate. The air inlets of the first radiator are respectively located below the first radiators on the front plate, the rear plate, and the left side plate. The air inlets of the second radiator are respectively located below the first radiators on the front plate, the rear plate, and the right side plate. The air outlets are respectively located above the first radiators and the second radiators on the top plate, the front plate, and the rear plate. The cooling fan is located above the first radiators and the second radiator.

[0009] Preferably, the first water inlet pipe, the first water outlet pipe, the first water pump, the second water pump, the second water inlet pipe, and the second water outlet pipe are located below the first radiator and between the first radiator and the left side plate.

[0010] Preferably, an expansion tank is provided at the highest point of the air outlet inside the box, a liquid replenishment port is provided at the lower end of the expansion tank, a liquid filling port and a sealing cap covering the liquid filling port are provided at the upper front of the expansion tank, and the liquid cooling unit is also provided with connecting pipes that connect the liquid replenishment port and the water inlet of the first water pump, and the liquid replenishment port and the water inlet of the second water pump respectively.

[0011] Preferably, the expansion tank is provided with a first air inlet and a second air inlet on both sides, the first radiator is provided with a first exhaust port at the highest point, the second radiator is provided with a second exhaust port at the highest point, the liquid cooling unit is also provided with a first air collection pipe connected to the first air inlet and the first exhaust port respectively, and the liquid cooling unit is also provided with a second air collection pipe connected to the second air inlet and the second exhaust port respectively.

[0012] Preferably, the first and second air collection ports are located at a position more than two-thirds of the vertical height of the expansion tank.

[0013] Preferably, the expansion tank is provided with a pressure cover at the top and a liquid level switch that is separated from the liquid inside the expansion tank at the bottom.

[0014] Preferably, the first radiator is a microchannel radiator, and the second radiator is a microchannel radiator; the cooling fan is an axial fan with an air guide ring and a reverse self-cleaning function; the first water inlet pipe, the first water outlet pipe, the second water inlet pipe, and the second water outlet pipe are all nylon pipes, and the nylon pipes are wrapped with a layer of cloth tape and a layer of mesh sleeve from the inside to the outside, and quick connectors are provided on both sides of the nylon pipes; the first water pump and the second water pump are both electronic water pumps with speed adjustment function.

[0015] Compared with the prior art, this utility model has the following advantages: The liquid cooling unit of this utility model integrates a first radiator, a cooling fan, a first water inlet pipe, a first water outlet pipe, and a first water pump within its casing. That is, the casing not only has a cooling air duct with an air inlet, a first radiator, a cooling fan, and an air outlet, ensuring air-cooled heat dissipation of the first radiator, but also integrates a water supply system connected to the first radiator. The first water inlet pipe, the first water outlet pipe, and the first water pump are pre-connected and installed within the casing, realizing a modular liquid cooling configuration for the liquid cooling unit. This results in very high space utilization and a very compact structure. During installation, only the first water inlet pipe and the first water outlet pipe need to be connected externally; there is no need for additional water pipe connections as required by existing technologies. The installation operation is very simple and quick, with high installation efficiency and low labor costs. Attached Figure Description

[0016] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0017] Figure 1 This is a schematic diagram of the structure of a liquid cooling unit according to this utility model;

[0018] Figure 2 This is a schematic diagram of the water supply system of a liquid-cooled unit according to this utility model;

[0019] Figure 3 This is a structural diagram of the water supply system of a liquid-cooled unit of this utility model when the first radiator is not shown. Detailed Implementation

[0020] The present invention will be further described in conjunction with the following embodiments and accompanying drawings:

[0021] A liquid cooling unit, such as Figures 1 to 3As shown, it includes: a housing 10 with an air inlet 11 and an air outlet 12, a first radiator 13 and a cooling fan 14 disposed inside the housing 10, the two sides of the first radiator 13 facing the air inlet 11 and the air outlet 12 respectively, the cooling fan 14 being disposed between the first radiator 13 and the air outlet 12, the first radiator 13 being provided with a first water inlet 15 and a first water outlet 16, the housing 10 also being provided with a first water inlet pipe 17, a first water outlet pipe 18 and a first water pump 19, the first water pump 19 being disposed on the first water outlet pipe 18, the first water inlet pipe 17 being connected to the first water inlet 15, and the first water outlet pipe 18 being connected to the first water outlet 16.

[0022] Specifically, the number of cooling fans 14 can be set to one or more as needed. The first inlet pipe 17 and the first outlet pipe 18 can be connected to an external cooling system to form a water supply system for the first radiator 13, and the first water pump 19 provides circulation power for the water supply system of the first radiator 13.

[0023] The liquid-cooled unit of this invention integrates a first radiator 13, a cooling fan 14, a first water inlet pipe 17, a first water outlet pipe 18, and a first water pump 19 within its housing 10. This means that the housing 10 not only provides a cooling air duct with an air inlet 11, the first radiator 13, the cooling fan 14, and the air outlet 12, ensuring the air-cooled heat dissipation of the first radiator 13, but also integrates a water supply system connected to the first radiator 13. The first water inlet pipe 17, the first water outlet pipe 18, and the first water pump 19 are pre-connected and installed within the housing 10, achieving a modular liquid-cooled configuration for the unit. This results in very high space utilization and a very compact structure. During installation, only the first water inlet pipe 17 and the first water outlet pipe 18 need to be connected externally; unlike existing technologies, additional water pipe connections are not required. Installation is very simple and quick, with high efficiency and low labor costs.

[0024] Better, such as Figures 1 to 3 As shown, the housing 10 also includes a second radiator 20, a second water pump 21, a second inlet pipe 22, and a second outlet pipe 23. The second radiator 20 has a second inlet 24 and a second outlet 25. The second water pump 21 is mounted on the second outlet pipe 23. The second inlet pipe 22 is connected to the second inlet 24, and the second outlet pipe 23 is connected to the second outlet 25. The first radiator 13 and the second radiator 20 are arranged at an angle to the left and right, forming a V-shape. The second inlet pipe 22 and the second outlet pipe 23 can be connected to an external cooling system, thus forming a water supply system for the second radiator 20. The second water pump 21 provides circulation power for the water supply system of the second radiator 20.

[0025] The liquid-cooled unit of this invention is equipped with a first radiator 13 and a second radiator 20, and the first radiator 13 and the second radiator 20 have independent water supply systems. When one radiator or a water supply system fails, the other radiator can continue to operate normally, thus ensuring the normal operation of the liquid-cooled unit. Therefore, the redundant arrangement of the two radiators in the liquid-cooled unit of this invention ensures the reliability of the liquid-cooled unit.

[0026] In this utility model, the first radiator 13 and the second radiator 20 of the liquid cooling unit are arranged in a V-shape with their left and right sides tilted. This allows for the installation of a larger first radiator 13 and the second radiator 20 within the limited space inside the housing 10, thereby ensuring a larger heat dissipation area for the first radiator 13 and the second radiator 20 and achieving better heat dissipation efficiency.

[0027] Specifically, the V-shaped angle formed by the combination of the first radiator 13 and the second radiator 20 can be set from 30 degrees to 150 degrees, depending on the size of the enclosure 10. When the V-shaped angle is less than 30 degrees, the gap between the first radiator 13 and the second radiator 20 is small, which is not conducive to heat dissipation; and when the V-shaped angle is less than 30 degrees, the enclosure 10 needs to be set to a higher height, which will make the overall size of the enclosure 10 too large, resulting in higher costs and a less compact structure; when the V-shaped angle is greater than 150 degrees, the first radiator 13 and the second radiator 20 are set almost horizontally, and the size of the first radiator 13 and the second radiator 20 that can be set within the same size enclosure 10 is smaller, that is, the heat dissipation area is small and the heat dissipation efficiency is low.

[0028] Better, such as Figure 1 As shown, the housing 10 includes a top plate 26, a bottom plate 45, a front plate 27, a rear plate (not shown), a left side plate 28, and a right side plate (not shown). The top of the first radiator 13 is fixed to the left side plate 28, and the bottom of the first radiator 13 is fixed to the bottom plate 45. The top of the second radiator 20 is fixed to the right side plate (not shown), and the bottom of the second radiator 20 is fixed to the bottom plate 45. The air inlets 11 of the first radiator 13 are respectively located below the first radiator 13 on the front plate 27, the rear plate (not shown), and the left side plate 28. The air inlets 11 of the second radiator 20 are respectively located below the first radiator 13 on the front plate 27, the rear plate (not shown), and the right side plate (not shown). The air outlets 12 are respectively located above the first radiator 13 and the second radiator 20 on the top plate 26, the front plate 27, and the rear plate (not shown). The cooling fan 14 is located above the first radiator 13 and the second radiator 20.

[0029] The air inlets 11 of the first radiator 13 are respectively located below the first radiator 13 on the front panel 27, the rear panel (not shown in the figure), and the left side panel 28. That is, the air inlets 11 of the first radiator 13 are provided on the front panel 27, the rear panel (not shown in the figure), and the left side panel 28. This can ensure that a larger air volume from outside the cabinet 10 enters the cabinet 10 and passes through the first radiator 13, which can greatly improve the heat dissipation efficiency of the first radiator 13.

[0030] The air inlets 11 of the second radiator 20 are respectively located below the second radiator 20 on the front panel 27, the rear panel (not shown in the figure), and the right side panel (not shown in the figure). That is, the air inlets 11 of the second radiator 20 are provided on the front panel 27, the rear panel (not shown in the figure), and the right side panel (not shown in the figure). This can ensure that a larger air volume from outside the cabinet 10 enters the cabinet 10 and passes through the second radiator 20, which can greatly improve the heat dissipation efficiency of the second radiator 20.

[0031] The cooling fan 14 is positioned above the first radiator 13 and the second radiator 20. The V-shaped arrangement of the first radiator 13 and the second radiator 20 ensures that there is more space above the first radiator 13 and the second radiator 20, which means that there is more space to place the cooling fan 14 inside the housing 10. The cooling fan 14 can be placed at a lower position, thereby improving the utilization rate of the internal space of the housing 10 and reducing the size of the housing 10.

[0032] Better, such as Figure 1 As shown, the first inlet pipe 17, the first outlet pipe 18, the first water pump 19, the second water pump 21, the second inlet pipe 22, and the second outlet pipe 23 are located below the first radiator 13, between the first radiator 13 and the left side plate 28. That is, the water supply systems for both the first radiator 13 and the second radiator 20 are located below the first radiator 13, between the first radiator 13 and the left side plate 28, facilitating unified planning and installation of piping components and resulting in a compact structure. Of course, the second water pump 21, the second inlet pipe 22, and the second outlet pipe 23 can also be located below the second radiator 20, between the second radiator 20 and the right side plate (not shown in the figure), as needed.

[0033] Better, such as Figures 1 to 3 As shown, an expansion tank 29 is provided at the highest point of the air outlet 12 inside the housing 10. A liquid replenishment port 30 is provided at the lower end of the expansion tank 29. A liquid filling port 31 and a sealing cap 32 covering the liquid filling port 31 are provided at the upper front of the expansion tank 29. The liquid cooling unit is also provided with connecting pipes 41 that are respectively connected to the liquid replenishment port 30 and the water inlet of the first water pump 19, as well as the water inlet of the liquid replenishment port 30 and the water inlet of the second water pump 21.

[0034] The expansion tank 29 is used to accommodate the expansion of the system water and serves to maintain pressure and replenish water. The liquid inlet 31 is used to replenish water to the expansion tank 29. When the expansion tank 29 is short of water, liquid can be added to the expansion tank 29 simply by opening the sealing cover 32.

[0035] The replenishment port 30 of the expansion tank 29 is connected to the inlet of the first water pump 19 and the inlet of the second water pump 21 via a connecting pipe 41. When the water pressure in the water system of the first radiator 13 and the second radiator 20 increases, excess water flows into the expansion tank 29 through the connecting pipe 41. When the water pressure in the water system of the first radiator 13 and the second radiator 20 decreases, the water in the expansion tank 29 is replenished back into the water system of the first radiator 13 and the second radiator 20, thereby maintaining the balance of system pressure. The expansion tank 29 ensures that the volume of water in the water system of the first radiator 13 and the second radiator 20 increases or decreases due to temperature changes, thereby maintaining the stability of the water pressure in the system. The expansion tank 29 is located at the highest point of the air outlet 12 inside the housing 10, with a compact structure, which is beneficial for replenishing the water system of the first radiator 13 and the second radiator 20.

[0036] Better, such as Figures 1 to 3 As shown, the expansion tank 29 is provided with a first air collection port 33 and a second air collection port 34 on both sides. The first radiator 13 is provided with a first exhaust port 35 at the highest point and the second radiator 20 is provided with a second exhaust port 37 at the highest point. The liquid cooling unit is also provided with a first air collection pipe 36 that connects to the first air collection port 33 and the first exhaust port 35 respectively. The liquid cooling unit is also provided with a second air collection pipe 38 that connects to the second air collection port 34 and the second exhaust port 37 respectively.

[0037] When the air pressure inside the first radiator 13 is too high, the gas is discharged to the expansion tank 29 through the first exhaust port 35 and the first gas collection pipe 36 at the highest point of the first radiator 13 to ensure the stability of the air pressure inside the first radiator 13. Similarly, when the air pressure inside the second radiator 20 is too high, the gas is discharged to the expansion tank 29 through the second exhaust port 37 and the second gas collection pipe 38 at the highest point of the second radiator 20 to ensure the stability of the air pressure inside the second radiator 20.

[0038] Better, such as Figures 1 to 3 As shown, the first air collection port 33 and the second air collection port 34 are located at a position more than two-thirds of the vertical height of the expansion tank 29. The first air collection port 33 and the second air collection port 34 are located at a certain height, which is conducive to collecting excess gas in the first radiator 13 and the second radiator 20 and discharging it into the expansion tank 29.

[0039] Better, such as Figures 1 to 3As shown, the top of the expansion tank 29 is provided with a pressure cover 39, and the bottom of the expansion tank 29 is provided with a liquid level switch 40 that is separated from the liquid inside the expansion tank 29.

[0040] The pressure cover 39 is a prior art pressure cover 39. When the gas pressure in the expansion tank 29 is higher than the set value, the pressure cover 39 automatically releases gas to the outside of the expansion tank 29; when the gas pressure in the expansion tank 29 is lower than the set value, the pressure cover 39 automatically adds gas to the expansion tank 29 to replenish the pressure. The pressure cover 39 can ensure that the pressure in the expansion tank 29 is stable.

[0041] The liquid level switch 40 is located at the bottom of the water replenishment device and does not directly contact the liquid in the water system, thus achieving the function of separating dry and wet. The liquid level switch 40 is a device for detecting the liquid level in the prior art. When the liquid level is lower than the set value, it can issue an alarm signal to prompt the staff to add liquid to the expansion tank 29.

[0042] Preferably, the coolant used in this liquid cooling unit includes, but is not limited to, water, and different types of liquids can be used as coolants at different application temperatures.

[0043] The liquid-cooled unit of this invention uses an expansion tank 29 to achieve pressure and liquid balance in the water system of the first radiator 13 and the second radiator 20. Existing technologies typically employ numerous components such as expansion tanks, replenishment pumps, temperature sensors, pressure sensors, and check valves. These components not only increase the system's risk points but also require regular maintenance, significantly increasing operating costs. Therefore, the liquid-cooled unit of this invention, using an expansion tank 29 to achieve pressure and liquid balance in the water system of the first radiator 13 and the second radiator 20, offers superior performance, a simpler structure, saves on numerous components, and reduces equipment and maintenance costs.

[0044] Preferably, the first radiator 13 is a microchannel radiator, and the second radiator 20 is a microchannel radiator; the cooling fan 14 is an axial fan with an air guide ring (not shown in the figure) and a reverse self-cleaning function; the first water inlet pipe 17, the first water outlet pipe 18, the second water inlet pipe 22, and the second water outlet pipe 23 are all nylon pipes, and the nylon pipes are wrapped with a layer of cloth tape and a layer of mesh sleeve from the inside to the outside, and quick connectors 42 are provided on both sides of the nylon pipes; the first water pump 19 and the second water pump 21 are both electronic water pumps with speed adjustment function.

[0045] Microchannel radiators are existing technologies that utilize microchannels for efficient heat exchange. The structure of a microchannel radiator typically includes dozens of tiny flow channels within a flat tube. The fluid flowing within these microchannels can effectively absorb and transfer heat, thus achieving highly efficient heat exchange. The first radiator 13 and the second radiator 20 employ microchannel radiators, resulting in very high heat exchange efficiency, high heat dissipation efficiency, and excellent heat dissipation effect.

[0046] The cooling fan 14 is an axial fan with an air guide ring (not shown in the figure) and a reverse self-cleaning function. The axial fan draws air in from the air inlets 11 on all sides and exhausts air from the top, which can effectively improve the airflow efficiency of the liquid cooling unit of this utility model. The air guide ring (not shown in the figure) can increase the airflow speed of the cooling fan 14 and improve the efficiency of the cooling fan 14. The axial fan is set to have a reverse self-cleaning function, that is, air is drawn in from the top air outlet 12 and exhausted from the air outlets 12 on all sides, realizing the cleaning function of the filter screen inside the axial fan.

[0047] The nylon tubing is wrapped with a layer of cloth tape and a layer of mesh sleeve from the inside out, ensuring the sealing and tensile flexibility of the nylon tubing. The first inlet pipe 17, the first outlet pipe 18, the second inlet pipe 22 and the second outlet pipe 23 are made of nylon tubing and can be quickly connected through quick connectors 42 at both ends of the nylon tubing, which simplifies the system. Compared with the existing technology that uses stainless steel pipes, it can achieve quick connection, has low cost and greatly reduces weight.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A liquid-cooled unit, characterized in that, include: The enclosure includes an air inlet and an air outlet, a first radiator and a cooling fan disposed within the enclosure, with the two sides of the first radiator facing the air inlet and the air outlet respectively, and the cooling fan disposed between the first radiator and the air outlet. The first radiator has a first water inlet and a first water outlet. The enclosure also includes a first water inlet pipe, a first water outlet pipe and a first water pump, with the first water pump disposed on the first water outlet pipe, the first water inlet pipe connected to the first water inlet, and the first water outlet pipe connected to the first water outlet.

2. The liquid-cooled unit according to claim 1, characterized in that: The housing is also equipped with a second radiator, a second water pump, a second inlet pipe, and a second outlet pipe. The second radiator is equipped with a second inlet and a second outlet. The second water pump is mounted on the second outlet pipe. The second inlet pipe is connected to the second inlet, and the second outlet pipe is connected to the second outlet. The first radiator and the second radiator are arranged to be tilted left and right to form a V-shape.

3. A liquid-cooled unit according to claim 2, characterized in that: The V-shape formed by the first heat sink and the second heat sink has an angle of 30 degrees to 150 degrees.

4. A liquid-cooled unit according to claim 3, characterized in that: The enclosure includes a top plate, a bottom plate, a front plate, a rear plate, a left side plate, and a right side plate. The top of the first radiator is fixed to the left side plate, and the bottom of the first radiator is fixed to the bottom plate. The top of the second radiator is fixed to the right side plate, and the bottom of the second radiator is fixed to the bottom plate. The air inlets of the first radiator are respectively located below the first radiator on the front plate, the rear plate, and the left side plate. The air inlets of the second radiator are respectively located below the first radiator on the front plate, the rear plate, and the right side plate. The air outlets are respectively located above the first radiator and the second radiator on the top plate, the front plate, and the rear plate. The cooling fan is located above the first radiator and the second radiator.

5. A liquid-cooled unit according to claim 4, characterized in that: The first inlet pipe, the first outlet pipe, the first water pump, the second water pump, the second inlet pipe, and the second outlet pipe are located below the first radiator and between the first radiator and the left side plate.

6. A liquid-cooled unit according to claim 2, characterized in that: An expansion tank is provided at the highest point of the air outlet inside the box. A liquid replenishment port is provided at the lower end of the expansion tank. A liquid filling port and a sealing cap covering the liquid filling port are provided at the upper front of the expansion tank. The liquid cooling unit is also provided with connecting pipes that connect the liquid replenishment port to the water inlet of the first water pump and the liquid replenishment port to the water inlet of the second water pump.

7. A liquid-cooled unit according to claim 6, characterized in that: The expansion tank is provided with a first air inlet and a second air inlet on both sides. The first radiator is provided with a first exhaust port at the highest point and the second radiator is provided with a second exhaust port at the highest point. The liquid cooling unit is also provided with a first air collection pipe that connects the first air inlet and the first exhaust port respectively. The liquid cooling unit is also provided with a second air collection pipe that connects the second air inlet and the second exhaust port respectively.

8. A liquid-cooled unit according to claim 7, characterized in that: The first and second air collection ports are located at a position more than two-thirds of the vertical height of the expansion tank.

9. A liquid-cooled unit according to claim 8, characterized in that: The expansion tank is equipped with a pressure cover on the top and a level switch at the bottom that is separate from the liquid inside the expansion tank.

10. A liquid-cooled unit according to claim 2, characterized in that: The first heat sink is a microchannel heat sink, and the second heat sink is a microchannel heat sink; the cooling fan is an axial fan with an air guide ring and a reverse self-cleaning function; the first water inlet pipe, the first water outlet pipe, the second water inlet pipe, and the second water outlet pipe are all nylon pipes, and the nylon pipes are wrapped with a layer of cloth tape and a layer of mesh sleeve from the inside to the outside, and quick connectors are provided on both sides of the nylon pipes; the first water pump and the second water pump are both electronic water pumps with speed adjustment function.

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