Server radiator, server radiating system and server

Abstract

The server radiator comprises a shell and a plurality of radiating fins, at least part of the radiating fins are stacked, the angle between every two adjacent radiating fins can be adjusted so as to change the size of the included angle between every two adjacent radiating fins, the radiating fins are internally provided with liquid inlet flow channels, liquid outlet flow channels and middle flow channels, and the liquid inlet flow channels, the liquid outlet flow channels and the middle flow channels are communicated with each other. The liquid inlet flow channel and the liquid outlet flow channel extend in the length direction of the cooling fins and communicate with each other at one ends of the cooling fins, and the two ends of the middle flow channel communicate with the liquid inlet flow channel and the liquid outlet flow channel correspondingly. The problem that the heat dissipating capacity of the server is difficult to adjust in a self-adaptive mode in the prior art is solved.

Description

Technical Field

[0001] The embodiments of the present application relate to the computer field, and in particular, to a server radiator, a server cooling system, and a server. Background Art

[0002] Servers generate a lot of heat during operation. Currently, the heat sinks used in most servers usually have a fixed shape. Common fixed-shape heat sinks are sheet-shaped, block-shaped, or have a specific geometric structure. For example, sheet heat sinks may be densely arranged around the key heat-generating components of the server to effectively conduct heat through large-area contact; block heat sinks may be used in some specific areas to provide concentrated heat dissipation. Although these fixed-shape heat sinks have certain guarantees in terms of heat dissipation performance and stability, their fixed shape makes the heat dissipation relatively constant, and they cannot adaptively adjust the heat dissipation to better cope with different workloads and environmental conditions. Summary of the invention

[0003] The embodiments of the present application provide a server radiator, a server cooling system and a server, so as to at least solve the problem in the related art that the heat dissipation of the server is difficult to adaptively adjust.

[0004] According to one aspect of the present application, a server radiator is provided, comprising a shell and a plurality of cooling fins, at least some of the cooling fins are stacked, and the angle between two adjacent cooling fins can be adjusted to change the angle between the two adjacent cooling fins, and the cooling fins are provided with a liquid inlet channel, a liquid outlet channel and an intermediate channel, the liquid inlet channel and the liquid outlet channel both extend along the length direction of the cooling fins and are connected at one end of the cooling fins, and the two ends of the intermediate channel are respectively connected to the liquid inlet channel and the liquid outlet channel.

[0005] Furthermore, the server radiator also includes an angle adjustment device, which is drivingly connected to at least one of two adjacent stacked radiating fins and drives the radiating fins to rotate.

[0006] Furthermore, the angle adjustment device includes a tube body, a slider, a transmission component and a rotating shaft for passing a cooling medium. The slider is movably arranged in the tube body and can move along the tube body driven by the cooling medium; the transmission component is drivingly connected to the slider; the rotating shaft is drivingly connected to the transmission component, and the rotating shaft is drivingly connected to at least one of the two adjacent stacked heat sink fins, and drives at least one heat sink fin to rotate relative to each other.

[0007] Furthermore, one of the two adjacent heat dissipation fins is fixedly arranged relative to the housing, and the other of the two adjacent heat dissipation fins is connected to the rotating shaft and rotates driven by the rotating shaft.

[0008] Furthermore, the housing has a windward side, and the distances between the first ends of two adjacent stacked heat dissipation fins facing the windward side and the windward side are different.

[0009] Furthermore, along the stacking direction, the distance between the first end of each stacked heat dissipation fin and the windward side first increases and then decreases, and the connecting line of the first ends of each stacked heat dissipation fin forms an arc.

[0010] Furthermore, some heat dissipation fins are stacked to form a fin group, there are multiple fin groups, and each fin group is arranged in sequence along a direction perpendicular to the stacking direction of the heat dissipation fins.

[0011] Furthermore, there are multiple intermediate flow channels, and each intermediate flow channel is arranged in sequence along the length direction of the heat dissipation fins; the server radiator also includes a liquid inlet pipeline and a liquid outlet pipeline, the liquid inlet pipeline is connected to the liquid inlet flow channel, the liquid outlet pipeline is connected to the liquid outlet flow channel, and the flow areas of the liquid inlet flow channel, the liquid outlet flow channel and the intermediate flow channel are all smaller than the flow areas of the liquid inlet pipeline and the liquid outlet pipeline; the server radiator also includes an angle adjustment device, the angle adjustment device includes a tube body for passing a cooling medium, a slider, a transmission component and a rotating shaft, the slider is movably arranged in the tube body, and can be driven by the cooling medium to move along the tube body The transmission component is driven and connected to the slider and the rotating shaft. The transmission component includes at least one of a gear rack and a crank slider. One of the two adjacent stacked heat sinks is driven and connected to the rotating shaft, and the other of the two adjacent stacked heat sinks is connected to the tube body. The rotating shaft drives one of the two heat sinks to rotate to change the angle between the two heat sinks. The shell has a windward side, and the heat sink has a first end facing the windward side. Along the stacking direction, the distance between the first end of each stacked heat sink and the windward side first increases and then decreases, and the connecting line of the first ends of each stacked heat sink forms an arc.

[0012] According to another aspect of the present application, a server cooling system is provided, comprising the above-mentioned server radiator, a fan and a liquid cooling pipeline; the fan faces the server radiator and blows air to the server radiator for air cooling; the liquid cooling pipeline is connected to the server radiator and supplies liquid to the server radiator for liquid cooling.

[0013] According to another aspect of the present application, a server is provided, including components and the above-mentioned server cooling system, wherein a server radiator of the server cooling system is arranged at the component and performs heat exchange with the component.

[0014] The technical solution of the present application is to change the size of the angle between the two adjacent heat fins by setting an adjustable angle between the two adjacent heat fins, so that the heat exchange area of ​​the heat fins can be adjusted, thereby adjusting the heat dissipation of the server radiator. Specifically, on the one hand, when the heat generated by the heat source is small, the stacked heat fins are sufficient to take away the heat generated by the heat source to achieve cooling of the heat source. At this time, the heat generated by the heat source is large, the stacked heat fins are insufficient to quickly take away the heat generated by the heat source. At this time, the angle between the two adjacent heat sinks is increased, so that the stacked heat sinks are staggered, thereby increasing the heat exchange area of ​​the heat fins, thereby improving the heat exchange efficiency. On the other hand, a liquid inlet flow channel, a liquid outlet flow channel and an intermediate flow channel are provided in the heat sink. The cooling medium flows through the liquid inlet flow channel, the liquid outlet flow channel and the intermediate flow channel, thereby quickly taking away the heat from the heat sink to achieve cooling. In addition, this fish gill-like setting method can also reduce noise to a certain extent, and Compared with traditional radiators, it can achieve good heat dissipation effect in a quieter way, bringing a better experience to the working environment. In this way, when the heat generated during the operation of the server is different, by changing the angle between two adjacent heat dissipation fins, the arrangement structure of multiple heat dissipation fins is deformed, thereby changing the heat exchange area and achieving the purpose of adjusting the heat exchange amount. As a result, the server radiator has good adaptability and can timely and effectively reduce the temperature of various components of the server according to different working environments and load conditions, ensure the normal operation and performance of the server, make the heat dissipation process more intelligent and efficient, reduce the risk of failure and damage caused by high temperature, extend the service life of the server, and improve the stability and reliability of the server. At the same time, it helps to save energy, reduce energy consumption, achieve energy conservation and emission reduction, and play a positive role in environmental protection. It is also conducive to the compact design of the server, exerting excellent heat dissipation capabilities in a limited space, facilitating the miniaturization and integration of the server, meeting the requirements of special fields for high heat dissipation performance, and ensuring the safe operation of high-precision equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the server radiator of the present application;

[0016] Figure 2 is a schematic diagram of the structure of the fin group;

[0017] Figure 3 It is a schematic diagram of the structure of two adjacent heat sink fins;

[0018] Figure 4 It is a structural schematic diagram of two adjacent heat sink fins from another angle;

[0019] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0020] Figure 6 is a schematic diagram of the structure of the angle adjustment device;

[0021] Figure 7 It is a schematic diagram of the cooling medium flow direction of the heat dissipation system;

[0022] Figure 8 It is a schematic diagram of the air flow direction of the cooling system.

[0023] 10. Shell; 20. Heat dissipation fins; 21. Liquid inlet channel; 22. Liquid outlet channel; 23. Intermediate channel; 24. First end; 31. Tube body; 32. Slider; 33. Transmission component; 34. Rotating shaft; 40. Liquid inlet pipeline; 50. Liquid outlet pipeline; 60. Fan; 70. Liquid cooling pipeline. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0026] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0027] In order to solve the problem in the related art that the heat dissipation of a server is difficult to adaptively adjust, an embodiment of the present application provides a server radiator, a server heat dissipation system and a server.

[0028] like Figures 1 to 8 As shown, a server radiator includes a shell 10 and a plurality of heat dissipation fins 20, at least some of the heat dissipation fins 20 are overlapped, and the angle between two adjacent heat dissipation fins 20 can be adjusted to change the angle between two adjacent heat dissipation fins 20. The heat dissipation fins 20 are provided with a liquid inlet channel 21, a liquid outlet channel 22 and an intermediate channel 23. The liquid inlet channel 21 and the liquid outlet channel 22 both extend along the length direction of the heat dissipation fins 20 and are connected at one end of the heat dissipation fins 20, and the two ends of the intermediate channel 23 are respectively connected to the liquid inlet channel 21 and the liquid outlet channel 22.

[0029] In this embodiment, the angle between two adjacent heat sinks 20 is adjustable to change the size of the angle between the two adjacent heat sinks 20, so that the heat exchange area of ​​the heat sink 20 can be adjusted, thereby adjusting the heat dissipation of the server radiator. Specifically, on the one hand, when the heat generated by the heat source is small, the stacked heat sink 20 is sufficient to take away the heat generated by the heat source to achieve cooling of the heat source. At this time, the heat sink 20 remains in a stacked state. When the heat generated by the heat source is large, the stacked heat sink 20 is insufficient to quickly take away the heat generated by the heat source. At this time, the angle between the two adjacent heat sinks 20 is increased, so that the stacked heat sink 20 is staggered, thereby increasing the heat exchange area of ​​the heat sink 20, thereby improving the heat exchange efficiency. On the other hand, the heat sink 20 is provided with a liquid inlet channel 21, a liquid outlet channel 22 and an intermediate channel 23. The cooling medium flows through the liquid inlet channel 21, the liquid outlet channel 22 and the intermediate channel 23, thereby quickly taking away the heat of the heat sink 20 to achieve cooling. In addition, this fish gill-like setting method can also To reduce noise to a certain extent, it can achieve good heat dissipation effect in a quieter way compared with traditional radiators, bringing a better experience to the working environment. In this way, when the heat generated during the operation of the server changes, by changing the angle between two adjacent heat dissipation fins 20, the arrangement structure of multiple heat dissipation fins 20 is deformed, thereby changing the heat exchange area and achieving the purpose of adjusting the heat exchange amount, so that the server radiator has good adaptability, and can timely and effectively reduce the temperature of various components of the server according to different working environments and load conditions, ensure the normal operation and performance of the server, make the heat dissipation process more intelligent and efficient, reduce the risk of failure and damage caused by high temperature, extend the service life of the server, and improve the stability and reliability of the server. At the same time, it helps to save energy, reduce energy consumption, achieve energy conservation and emission reduction, and play a positive role in environmental protection. It is also conducive to the compact design of the server, exerting excellent heat dissipation capabilities in a limited space, facilitating the miniaturization and integration of the server, meeting the requirements of special fields for high heat dissipation performance, and ensuring the safe operation of high-precision equipment.

[0030] like Figure 3 , Figure 5As shown, in the present embodiment, there are a plurality of intermediate flow channels 23, and each intermediate flow channel 23 is arranged in sequence along the length direction of the heat sink fin 20 at intervals, so that part of the cooling medium enters the plurality of intermediate flow channels 23 from the liquid inlet flow channel 21 and flows out from the liquid outlet flow channel 22, and part of the cooling medium flows directly from the liquid inlet flow channel 21 to the liquid outlet flow channel 22, and flows out of the heat sink fin 20 from the liquid outlet flow channel 22. The heat dissipation fins 20 of the present embodiment are configured to be in the shape of a rectangular plate, and a liquid inlet and a liquid outlet are provided at one end of the heat dissipation fins 20 to facilitate the flow of cooling medium into the liquid inlet channel 21 and the liquid outlet channel 22. The liquid inlet channel 21 and the liquid outlet channel 22 are connected at the other end of the heat dissipation fins 20. The liquid inlet channel 21 and the liquid outlet channel 22 are both provided at the edge of the heat dissipation fins 20. A plurality of intermediate channels 23 are provided in the middle part of the heat dissipation fins 20. The flow direction of the cooling medium in the intermediate channel 23 is perpendicular to the length direction of the heat dissipation fins 20. In this way, the interior of the heat dissipation fins 20 is covered with channels, thereby quickly taking away the heat of the heat dissipation fins 20, thereby improving the heat dissipation of the heat dissipation fins 20. Compared with the inlet flow channel 21 and the outlet flow channel 22, the intermediate flow channel 23 is a smaller flow channel with a smaller cross-sectional area and a relatively large number, thereby further increasing the heat exchange area and enabling the cooling medium to be more evenly distributed in the area to be cooled, ensuring the consistency of the cooling effect. At the same time, this fine structure is conducive to accurately controlling the flow and heat transfer of the cooling medium, improving the performance and reliability of the entire liquid cooling system. The inlet flow channel 21 and the outlet flow channel 22 serve as the main channels for conveying the cooling medium. When the cooling medium flows from the inlet flow channel 21 into the intermediate flow channel 23, the heat dissipation of the heat sink 20 is more sufficient.

[0031] Preferably, the heat dissipation fins 20 are made of a material with good thermal conductivity to ensure that heat can be quickly transferred to the heat dissipation fins 20 .

[0032] like Figure 6As shown, in this embodiment, the server radiator further includes an angle adjustment device, which is drivingly connected to at least one of the two adjacent heat sink fins 20 stacked together, and drives the heat sink fin 20 to rotate, so that the angle between the two adjacent heat sink fins 20 changes, thereby causing the surface area of ​​the two adjacent heat sink fins 20 exposed to the surrounding environment to change, thereby adjusting the heat dissipation. The angle adjustment device of this embodiment is drivingly connected to one of the two adjacent heat sink fins 20, and the other of the two adjacent heat sink fins 20 is fixed relative to the angle adjustment device. In this way, when the angle adjustment device drives the heat sink fin 20, the heat sink fin 20 drivingly connected to the angle adjustment device rotates relative to the other of the two adjacent heat sink fins 20, thereby changing the angle between the two adjacent heat sink fins 20, thereby changing the heat exchange area, and then changing the heat dissipation. Of course, an angle adjustment device may also be provided to be driven and connected to two adjacent heat sink fins 20. For example, an angle adjustment device may be provided to simultaneously drive the two heat sink fins 20 to rotate, and the rotation amplitudes of the two heat sink fins 20 may be different. Alternatively, an angle adjustment device may be provided to simultaneously drive the two heat sink fins 20 to rotate, but the rotation directions of the two heat sink fins 20 are different, so that the two adjacent heat sink fins 20 can be staggered.

[0033] In this embodiment, the angle adjustment device includes a tube body 31 for passing a cooling medium, a slider 32, a transmission component 33 and a rotating shaft 34. The slider 32 is movably arranged in the tube body 31 and can move along the tube body 31 under the drive of the cooling medium; the transmission component 33 is drivingly connected to the slider 32; the rotating shaft 34 is drivingly connected to the transmission component 33, and the rotating shaft 34 is drivingly connected to at least one of the two adjacent heat sink fins 20 stacked, and drives at least one heat sink fin 20 to rotate relative to each other, so that the cooling medium pushes the slider 32 to move along the extension direction of the tube body 31, the slider 32 drives the rotating shaft 34 to rotate through the transmission component 33, and the rotating shaft 34 drives the angle between the two adjacent heat sink fins 20 to change. In this embodiment, one of the two adjacent heat sink fins 20 is fixedly arranged relative to the housing 10, and the other of the two adjacent heat sink fins 20 is connected to the rotating shaft 34 and rotates under the drive of the rotating shaft 34. Specifically, the tube body 31 is fixed to the shell 10, and a hole is opened on the side wall of the tube body 31 for the rotation shaft 34 to pass through. The same end of two adjacent heat sink fins 20 is provided with a through hole, and the rotation shaft 34 is passed through the through hole. One of the two adjacent heat sink fins 20 is fixed to the tube body 31, and the other is fixed to the rotation shaft 34. In this way, when the rotation shaft 34 rotates, it drives one of the two adjacent heat sink fins 20 to rotate, thereby increasing the angle between the two adjacent heat sink fins 20, thereby increasing the exposed area of ​​the heat sink fins 20, and thus improving the heat dissipation.

[0034] The transmission component 33 of this embodiment includes at least one of a gear rack and a crank slider 32. One of the two adjacent stacked heat sink fins 20 is drivingly connected to the rotating shaft 34, and the other of the two adjacent stacked heat sink fins 20 is connected to the tube body 31. The rotating shaft 34 drives one of the two heat sink fins 20 to rotate to change the angle between the two heat sink fins 20, thereby realizing the movement of the slider 32 so that the angle between the two adjacent heat sink fins 20 changes. Specifically, in this embodiment, the transmission component 33 is set to a gear rack structure, the rack is connected to the slider 32, the rack is fixed on the side of the slider 32 away from the cooling medium, and the rack is meshed with the gear, the gear is sleeved outside the rotating shaft 34, and drives the rotating shaft 34 to rotate synchronously, so that the slider 32 is driven by the cooling medium to push the rack to move along the extension direction of the tube body 31, thereby driving the gear to rotate, the gear drives the rotating shaft 34 to rotate synchronously, and the rotating shaft 34 drives the heat sink fins 20 fixedly connected thereto to rotate synchronously, thereby realizing the angle change between two adjacent heat sink fins 20, and then achieving the purpose of increasing the surface area of ​​the heat sink fins 20, so that the server radiator improves the heat dissipation. Figure 6 The arrow direction in the figure is the direction of the cooling medium pressurization. Driven by the cooling medium, the slider 32 starts to slide from left to right. A rack is fixed on the right side of the slider 32. When the slider 32 moves to the right, it pulls the rack to move to the right synchronously. Since there is a mutual meshing relationship between the rack and the gear, as the rack moves, the gear gets the opportunity to rotate. The rotation of the gear further triggers a series of chain reactions, driving the shaft 34 to start rotating. The shaft 34 is closely connected to one of the two adjacent heat sink fins 20. Under the rotation of the shaft 34, the two adjacent heat sink fins 20 begin to open a certain angle. Through such ingenious design and operation, the purpose of increasing the surface area of ​​the heat sink fins 20 is successfully achieved. Of course, the transmission component 33 can also be set as other structural forms such as a crank slider 32, which can realize the conversion of the linear motion of the slider 32 into the rotation of the shaft 34.

[0035] Based on the setting mode that the slider 32 is set in the tube body 31 and moves along the extension direction of the tube body 31 depending on the drive of the cooling medium, the movement amplitude of the slider 32 can change with the force of the cooling medium pressurization, so it has the characteristics of self-adaptation, that is, the angle between the two adjacent heat sink fins 20 is not fixed, but will be sensitively adjusted according to the difference in server temperature. Specifically, when the server temperature rises, the force of the water flow pressurization may increase, thereby pushing the slider 32 to slide a farther distance, so that the rack moves a greater distance, thereby increasing the rotation amplitude of the gear, and finally resulting in a larger angle between the two adjacent heat sink fins 20 to increase the heat dissipation surface area to cope with higher temperatures. When the server temperature is relatively low, the movement amplitude of each component will be reduced accordingly, and the angle between the two adjacent heat sink fins 20 will also become smaller. Such dynamic adjustment ensures that the server radiator can flexibly and effectively dissipate heat according to actual conditions to maintain the good performance and stable operation of the server under different working conditions.

[0036] It should be noted that when the heat dissipation demand of the server is reduced to the point where the two adjacent heat dissipation fins 20 can be stacked to meet the heat dissipation demand, the two adjacent heat dissipation fins 20 are restored to the stacked state. Specifically, a spring can be provided on the side of the slider 32 close to the shaft 34, and when the slider 32 is pressed by the cooling medium and approaches the shaft 34, the space between the two adjacent heat dissipation fins 20 opens, and when the slider 32 loses the pressure of the cooling medium, the spring applies a force to the slider 32 to move away from the shaft 34, so that the slider 32 returns to the initial position. Alternatively, the side of the tube body 31 away from the cooling medium can be set as a closed area, that is, the other side of the rotating shaft 34 away from the slider 32 is provided with a closed tube body 31, so that a closed chamber is formed between the side of the slider 32 away from the cooling medium and the tube body 31. When the slider 32 is pushed by the pressure of the cooling medium, the pressure of the closed chamber is increased. When the slider 32 loses the pressure of the cooling medium, the pressure of the closed chamber is large, thereby applying a force to the slider 32 to move away from the rotating shaft 34, so that the slider 32 can automatically retreat to the initial position, so that the two adjacent heat sink fins 20 can be restored to the overlapping state. Of course, the structure for returning the slider 32 to the initial position is not limited to this, and other settings can also be selected to restore the overlapping state between the two adjacent heat sink fins 20.

[0037] like Figure 7 , Figure 8As shown, in this embodiment, the housing 10 has a windward side, and the distance between the first end 24 of the two adjacent heat sink fins 20 facing the windward side and the windward side is different, that is, the ends of the multiple heat sink fins 20 are not arranged in a straight line, but are arranged in a curve or a broken line. Specifically, the wind blows from the windward side to the end of the heat sink fin 20, and blows into the inside of the housing 10 along the length direction of the heat sink fin 20 to dissipate heat for the heat sink fin 20, and blows out from the end of the heat sink fin 20 away from the windward side. However, the two adjacent heat sink fins 20 stacked are not completely stacked in the length direction of the heat sink fin 20, and there is a partial misalignment at the end close to the windward side. The two adjacent heat sink fins 20 stacked are called a pair of heat sink fins 20. The server radiator includes multiple pairs of heat sink fins 20. In this way, the ends of the multiple pairs of heat sink fins 20 are arranged in the shape of a curve or a broken line, thereby improving the wind resistance of the windward side of the server radiator, thereby improving the stability and safety of the structure.

[0038] In this embodiment, along the stacking direction, the distance between the first end 24 of each stacked heat sink fin 20 and the windward side increases first and then decreases, and the line connecting the first ends 24 of each stacked heat sink fin 20 forms an arc. Specifically, the first end 24 of the heat sink fin 20 is the end of the heat sink fin 20 close to the windward side. Figure 1 In the up and down directions, the first ends 24 of each heat dissipating fin 20 are arranged to form an inwardly concave arc, that is, the middle part of the arc is concave in the direction away from the windward side. In this way, when the wind blows to the first ends 24 of each heat dissipating fin 20, the windward area of ​​the server radiator can be increased, and the airflow distribution is optimized, thereby improving the wind resistance of the server radiator, thereby improving the stability of the server radiator.

[0039] Based on the arc-shaped structure formed by the connection line of the first ends 24 of the stacked heat sink fins 20, the through holes of the first ends 24 of two adjacent stacked heat sink fins 20 for the shaft 34 to pass through are not completely aligned. The shaft 34 can be set to have a certain flexibility, such as a soft shaft, etc. In this way, the shape of the shaft 34 is matched with the shape of the connection line of the first ends 24, that is, the shaft 34 is also set to an arc shape, and multiple pairs of heat sink fins 20 are connected at the same time, so that the multiple pairs of heat sink fins 20 can open angles at the same time or can be stacked at the same time, so as to more accurately control the heat dissipation of the server radiator.

[0040] It should be noted that Figure 6In the example, the rotating shaft 34 is in the shape of a round rod and drives a pair of heat sink fins 20 to open at an angle, but it does not mean that the rotating shaft 34 can only be set to a round rod shape, nor does it mean that the rotating shaft 34 can only drive a pair of heat sink fins 20. According to actual needs, the rotating shaft 34 can be set to the arc rotating shaft 34 in this embodiment, and the arc rotating shaft 34 can be a flexible shaft with a certain rigidity and can be bent into a corresponding shape according to the arrangement shape of the first end 24 of the heat sink fins 20. The rotating shaft 34 simultaneously drives multiple pairs of heat sink fins 20 arranged along the stacking direction of the heat sink fins 20.

[0041] like Figure 2 As shown, in this embodiment, some heat dissipation fins 20 are stacked to form a fin group, and there are multiple fin groups, each fin group is arranged in sequence along a direction perpendicular to the stacking direction of the heat dissipation fins 20. Specifically, Figure 3 , Figure 4 As shown, two adjacent heat sink fins 20 stacked together form a pair, and the first ends 24 of the two heat sink fins 20 in a pair are partially offset along the length direction of the heat sink fins 20, and the connecting line of the ends thereof is inclined in the up-down direction. Multiple pairs of heat sink fins 20 are arranged in the stacking direction to form a fin group, and the first ends 24 of the multiple pairs of heat sink fins 20 are partially offset along the length direction of the heat sink fins 20, so that the connecting line of the first ends 24 of each heat sink fin 20 in a fin group forms an arc, as shown in FIG. Figure 1 As shown, multiple fin groups are arranged perpendicular to the stacking direction, and the first ends 24 of each heat dissipation fin 20 in the multiple fin groups form an arc surface. In this way, an arc surface with a center concave away from the windward side is formed on the windward side of the shell 10, thereby increasing the windward area of ​​the server radiator and its wind resistance, improving its stability and safety, and ensuring that the wind can flow smoothly through the server radiator and take away the heat on the surface of the heat dissipation fin 20, thereby achieving rapid heat exchange. It should be noted that the up and down directions refer to Figure 1 The up-down direction in FIG. 1 is the direction in which the heat dissipation fins 20 are stacked.

[0042] In this embodiment, the server radiator further includes a liquid inlet pipeline 40 and a liquid outlet pipeline 50. The liquid inlet pipeline 40 is connected to the liquid inlet channel 21, and the liquid outlet pipeline 50 is connected to the liquid outlet channel 22. The flow areas of the liquid inlet channel 21, the liquid outlet channel 22 and the intermediate channel 23 are all smaller than the flow areas of the liquid inlet pipeline 40 and the liquid outlet pipeline 50. Specifically, the low-temperature cooling medium flows from the liquid inlet pipeline 40 into the liquid inlet channel 21, and flows from the liquid inlet channel 21 into the intermediate pipeline, and flows out from the intermediate pipeline to the liquid outlet channel 22. In this process, the cooling medium fully exchanges heat with the surrounding environment, and then the cooling medium flows out from the liquid outlet channel 22 to the liquid outlet pipeline 50, and finally flows out of the server radiator from the liquid outlet pipeline 50, or part of the cooling medium flows directly from the liquid inlet channel 21 to the liquid outlet channel 22. The flow of cooling medium between the cooling fins 20 can be achieved by connecting the liquid inlet channel 21 of the cooling fins 20 to the liquid inlet pipeline 40, and connecting the liquid outlet channel 22 of the cooling fins 20 to the liquid outlet pipeline 50. In this way, the cooling medium in the liquid inlet channel 21 comes from the liquid inlet channel 21, and the cooling medium in the liquid outlet pipeline 50 comes from the liquid outlet channel 22. The flow of the cooling medium between the heat sink fins 20 can also be carried out in a manner that the outlet flow channel 22 of the previous heat sink fin 20 circulates with the inlet flow channel 21 of the next adjacent heat sink fin 20. In this way, the cooling medium in the inlet pipeline 40 enters multiple fin groups and connects to the inlet flow channel 21 of a heat sink fin 20 in the fin group. After the cooling medium flows out of the outlet flow channel 22 of this heat sink fin 20, it enters the inlet flow channel 21 of the next heat sink fin 20, and the cycle continues, and finally flows out from the outlet flow channel 22 of the last heat sink fin 20 to the outlet pipeline 50, thereby realizing the circulation of the cooling medium. Of course, the flow mode of the cooling medium is not limited to this, and other flow modes can also be used, which can flow through all the heat sink fins 20 to achieve the purpose of heat dissipation.

[0043] In this embodiment, each fin group imitates the unique structure and functional principle of fish gills, and designs similar structures such as multiple arc-shaped heat dissipation fins 20 and intermediate flow channels 23 of the heat dissipation fins 20, so as to achieve a good heat dissipation effect in a limited space while maintaining a small volume. Among them, the liquid inlet pipe or the liquid outlet pipe or the rotating shaft 34 imitates the structure of the gill arch to connect each pair of heat dissipation fins 20 together. The heat dissipation fins 20 imitate the structure of the gill filaments and are arranged with multiple intermediate flow channels 23, and two adjacent heat dissipation fins 20 can open a certain angle as the pressure of the cooling medium increases, thereby increasing the heat dissipation area. The intermediate flow channel 23 imitates the structure of the gill platelets to perform heat exchange. In this way, the server radiator has an extremely high surface area, can be in close contact with the heat source, and quickly absorb heat. At the same time, just like the efficient gas exchange of fish gills in water, the server radiator can quickly transfer heat to the surrounding environment. Moreover, the airflow direction is planned to ensure that the cold air can flow smoothly through the radiator and take away the heat, just like water flowing through the fish gills takes away oxygen and heat. In this way, not only can the heat dissipation efficiency be significantly improved, ensuring that servers and other equipment can maintain a suitable temperature when running at high load, but also reliable heat dissipation protection can be provided for various high-heat generating equipment, thereby improving the performance and stability of the equipment and extending the service life of the equipment. In addition, it also has the characteristics of compact structure and small space occupation.

[0044] The present application also provides a server heat dissipation system, including the above-mentioned server radiator, fan 60 and liquid cooling pipeline 70; fan 60 faces the server radiator and blows air to the server radiator for air cooling, thereby quickly taking away the heat on the surface of the heat dissipation fins 20; liquid cooling pipeline 70 is connected to the server radiator, and supplies liquid to the server radiator for liquid cooling. Specifically, on the one hand, when the fan 60 is powered on, the fan blades rotate at a high speed, and the fan blades have a certain inclination angle and shape design. During the rotation process, the fan blades will push the air forward, so that the external cold air flow forms a forward-flowing air flow under the suction of the fan 60, prompting the cold air on the side of the fan 60 away from the server radiator to be driven by the fan 60 to form a new air flow blowing toward the server radiator, thereby taking away the heat on the surface of the heat dissipation fins 20 and various components, and forming a heated air flow, and finally discharged from the side of the server radiator away from the fan 60 to form a terminal air flow, and the terminal air flow is discharged from the outside of the shell 10 through the heat dissipation hole of the shell 10 to form an external hot air flow, which diffuses into the air. On the other hand, the cooling medium flows from the inlet of the liquid cooling pipeline 70 into the liquid inlet pipeline 40 of the server radiator, and enters the liquid inlet pipeline and the intermediate flow channel 23 of the heat sink fin 20 for sufficient heat dissipation, and then flows out to the liquid outlet pipeline 50 through the liquid outlet flow channel 22, and flows out from the outlet of the liquid cooling pipeline 70, and enters the external CDU (cooling distribution unit) for centralized processing. In this way, by combining air cooling and liquid cooling, the advantages of the two cooling methods are fully utilized. Liquid cooling is responsible for cooling components, while air cooling is used to cool the server radiator and other parts of the liquid cooling system. The two work together to ensure that the temperature of the system is maintained within a reasonable range, thereby achieving a better heat dissipation effect, ensuring the stable operation and performance of the equipment, and thus achieving the effect of one plus one being greater than two. Not only does it achieve efficient heat exchange in the server cooling system, but the heat dissipation of the server radiator can be adaptively adjusted, thereby improving the adaptability of the server cooling system.

[0045] According to actual needs, the fan 60 and the server radiator can be set to multiple, and the fan 60 and the server radiator are set one by one, and each set of fans 60 and server radiators cools different components of the server. Figure 7 As shown, this embodiment is explained by taking the arrangement of two fans 60 and two server radiators as an example. The only difference from a group of fans 60 and server radiators is that an intermediate liquid cooling pipeline 70 is arranged between the two server radiators to realize the circulation of cooling medium between the two server radiators. After the cooling medium flows out of the first server radiator, it flows into the second server radiator. After sufficient heat dissipation, the cooling medium flows out from the liquid outlet pipeline 50 of the second server radiator to the outlet of the liquid cooling pipeline 70 and enters the external cooling distribution unit for centralized treatment.

[0046] The present application also provides a server, including components and the above-mentioned server cooling system. The server radiator of the server cooling system is arranged at the component and exchanges heat with the component, so that the heat dissipation fins 20 absorb the heat generated by the component and take away the heat through the cooling medium and the wind blown by the fan 60, thereby achieving the purpose of cooling the component, and the size of the surface area of ​​the heat dissipation fins 20 exposed to the outside can be adjusted by adjusting the opening angle of the heat dissipation fins 20, thereby achieving the adjustment of the heat dissipation amount, thereby adapting to the different heat generation of the components.

[0047] It should be noted that in the server cooling system of this embodiment, on the one hand, PID is used to control the speed of fan 60. When the server load increases and the temperature rises, the PID algorithm will accurately adjust the speed of fan 60 according to the temperature deviation, deviation accumulation and temperature change rate, so as to ensure the cooling effect and avoid excessive energy consumption. In the cooling control of some precision instruments, the temperature is accurately controlled by finely adjusting the PID parameters to ensure the stability of the instrument performance. The speed of fan 60 is adjusted according to the calculated heat generation. When the heat generation is large, the speed of fan 60 is increased to enhance the heat dissipation; when the heat generation is small, the speed of fan 60 is reduced to save energy or avoid excessive noise. On the other hand, BMC, i.e. baseboard management controller, can also cleverly control the speed and pressure of the cooling medium to make the opening angle of the heat dissipation fins 20, and realize the adaptive adjustment of the angle according to different feedback results, so as to maximize the optimization of the cooling effect. Combining these two aspects of heat dissipation, the performance, reliability and long-term stable operation of the server are jointly guaranteed, and the entire heat dissipation cycle can be operated efficiently and orderly, and the heat is continuously taken away, ensuring that the server works in a stable and suitable temperature environment until the heat dissipation cycle is finally successfully completed.

[0048] For the measurement of the speed of fan 60, the current wind speed can be measured by installing a wind speed sensor, and the desired wind speed target value can be set. The PID algorithm is run in the control program, and the control signal is calculated according to the difference between the actual wind speed and the target wind speed. The control signal is sent to the drive circuit or motor controller of fan 60 to adjust the speed of fan 60 and thus change the wind speed. The set desired wind speed target value can be as follows: when 0°≤core component temperature≤30°, fan 60 speed is 80000RPM; when 30°≤core component temperature≤60°, fan 60 speed is 12000RPM; when 60°≤core component temperature≤90°, fan 60 speed is 27000RPM. The core component temperature refers to the memory, hard disk, CPU and other components inside the server.

[0049] For the detection of flow rate, a suitable flow sensor can be used to monitor the flow rate of the fluid. Similarly, the control quantity is calculated based on the flow rate deviation through the PID algorithm, and the control quantity is used to control the working state of the regulating valve or pump, etc., to achieve precise control of the flow rate. The desired flow rate target setting value can be as follows: when 0°≤core component temperature≤30°, the opening angle of the heat sink fins 20 is 0°; when 30°≤core component temperature≤60°, the opening angle of the heat sink fins 20 is 3°; when 60°≤core component temperature≤90°, the opening angle of the heat sink fins 20 is 6°.

[0050] For the opening angle of the heat sink fins 20, an angle sensor can be used to obtain the current opening angle of the heat sink fins 20, and PID calculation is also performed to generate a control instruction according to the angle deviation, and the instruction is transmitted to the mechanism that drives the heat sink fins 20 to achieve precise adjustment of the angle. The target setting value of the opening angle of the heat sink fins 20 can be as follows: when the core component temperature is between 60°≤core component temperature≤90°, the ideal opening angle target setting is ≤6°.

[0051] It should be noted that the proportional-integral-differential PID control algorithm is a commonly used control algorithm and is widely used in various automatic control systems. Proportional P control: It outputs a control signal in proportion to the size of the deviation. The proportional term can respond to the deviation quickly, but there may be a steady-state error. Integral I control: The deviation is integrated. As time accumulates, the integral term can eliminate the steady-state error, but it may cause the system to respond more slowly. Differential D control: The control signal is output according to the rate of change of the deviation. The differential term can predict the trend of the deviation change, which helps to improve the stability and rapidity of the system. In practical applications, the PID control algorithm achieves the ideal control effect by adjusting the proportional coefficient, integral coefficient and differential coefficient. For example, in the control of the heat sink fins 20 and BMC: when the temperature deviation of the components is large, the proportional term plays a major role, rapidly increasing the flow rate and pressure of the cooling medium, increasing the opening angle of the heat sink fins 20 or increasing the speed of the fan 60, and the temperature gradually approaches the set value. The integral term begins to play a role and eliminates the possible residual steady-state error. The differential term is fine-tuned according to the speed of the temperature change to prevent large temperature fluctuations. Take the CPU as an example. The current temperature is 55 degrees Celsius, the set temperature is 50 degrees Celsius, the proportional coefficient is 0.5, the integral coefficient is 0.1, and the differential coefficient is 0.2. The deviation is 5 degrees Celsius, so the control signal may be: proportional term = 0.5×5 = 2.5, the integral term assumes that the previous integral accumulation is 0 = 0.1×5 = 0.5, the differential term assumes that the temperature change rate is 1 degree Celsius / second = 0.2×1 = 0.2, the total control signal = 2.5+0.5+0.2 = 3.2, and the heat dissipation measures are adjusted according to this control signal. The proportional term is calculated based on the difference between the current temperature and the target temperature. A larger difference will output a larger control signal to quickly drive the heat dissipation enhancement. The difference is integrated and calculated. As time accumulates, the integral term will cause the system to gradually approach the target temperature and eliminate the steady-state error. The differential term is calculated by calculating the rate of temperature change, which is used to respond to rapid temperature changes in advance and suppress temperature fluctuations. However, in actual operation, the PID parameters also need to make the following experiments and verification parts: 1. Continuously adjust the PID parameters according to real-time temperature feedback, such as finding the most suitable combination of proportional coefficient, integral time constant and differential time constant through trial and error or experience-based methods. 2. Consider the influence of environmental factors. For example, when the ambient temperature changes greatly, it may be necessary to dynamically adjust the PID parameters to adapt. 3. Combined with the thermal characteristics of the system, such as the response speed of the server cooling system, reasonably set the PID parameters. 4. Conduct real-time monitoring and evaluation to observe whether the temperature curve meets expectations. If it is not ideal, further optimize the PID control.

[0052] The operation process of the server cooling system of this embodiment is as follows: after the server is turned on for a period of time, the temperature components of each component are turned on, and the CPU of the server quickly enters the working state, processing a large amount of data and computing tasks. As it continues to calculate, electrical energy is continuously converted into thermal energy, and the temperature gradually rises. At the same time, the memory module is also frequently exchanging and storing data, and the flow of current causes its own temperature to slowly rise. In the process of continuous reading and writing data of the hard disk, the high-speed rotation of the disk and the read and write operations of the magnetic head will generate heat, causing the temperature to rise. The BMC responds quickly and starts to obtain relevant data information from the input unit, such as the temperature near the CPU, the temperature near the power supply, the temperature near the PCIe (highly serial computer expansion bus standard), the temperature near the backplane, the temperature near the memory, and the temperature near the hard disk. These data are crucial for subsequent precise control and regulation. These data enter the air-cooled computing unit, the storage unit, and the liquid-cooled computing unit for calculation respectively. This time the data will be further stored in the secondary storage unit to ensure that the data will not be lost due to sudden accidents such as unexpected power outages. The air-cooled calculation unit and the liquid-cooled calculation unit respectively send instructions to the fan 60 speed controller and the pump flow controller through the air-cooled output unit and the liquid-cooled output unit to enter the heat dissipation unit. The heat dissipation unit will transmit the temperature to the output unit in real time in the form of air-cooled feedback and liquid-cooled feedback, thereby entering the next cycle, and repeating this cycle over and over again.

[0053] Based on the data of each component obtained by BMC, BMC accurately controls the speed of fan 60. Through the precise control of the speed of fan 60, effective management of air flow is achieved to initially assist in heat dissipation. At the same time, BMC also finely controls the flow speed of the cooling medium. Reasonable adjustment of the flow speed of the cooling medium directly affects the heat dissipation efficiency of the server radiator. Not only that, BMC further controls the pressure of the cooling medium flow, which has a key impact on the stable operation of the entire heat dissipation system. The setting of BMC control rules is mainly based on temperature monitoring and feedback. Proportional-integral-differential control algorithms or other auxiliary control strategies can be used to control the flow rate according to temperature changes to adjust the expansion angle of the heat sink fins 20 or the speed of fan 60. The specific control parameters can be debugged and optimized according to the actual system.

[0054] It should be noted that, the multiple in the above embodiments refers to at least two.

[0055] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0056] 1. Solved the problem of difficulty in adaptively adjusting the heat dissipation of servers in related technologies;

[0057] 2. By setting the angle between two adjacent heat sink fins to be adjustable, the angle between the two adjacent heat sink fins can be changed, so that the heat exchange area of ​​the heat sink fins can be adjusted, thereby adjusting the heat dissipation of the server radiator;

[0058] 3. Make the server radiator have good adaptability, and can timely and effectively reduce the temperature of various components of the server according to different working environments and load conditions, ensure the normal operation and performance of the server, make the heat dissipation process more intelligent and efficient, reduce the risk of failure and damage caused by high temperature, extend the service life of the server, and improve the stability and reliability of the server.

[0059] Obviously, the above-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 ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0061] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A server radiator, characterized in that: include: Housing (10); A plurality of heat dissipation fins (20), at least some of which are stacked, and an angle between two adjacent heat dissipation fins (20) can be adjusted to change the angle between the two adjacent heat dissipation fins (20). The heat dissipation fins (20) are provided with a liquid inlet channel (21), a liquid outlet channel (22) and an intermediate channel (23). The liquid inlet channel (21) and the liquid outlet channel (22) both extend along the length direction of the heat dissipation fins (20) and are connected at one end of the heat dissipation fins (20). The two ends of the intermediate channel (23) are respectively connected to the liquid inlet channel (21) and the liquid outlet channel (22).

2. The server radiator according to claim 1, characterized in that: The server radiator further comprises an angle adjustment device, which is drivingly connected to at least one of the two adjacent heat dissipation fins (20) stacked one on top of the other, and drives the heat dissipation fins (20) to rotate.

3. The server radiator according to claim 2, characterized in that: The angle adjustment device comprises: A pipe body (31) for introducing a cooling medium; A slider (32), the slider (32) being movably disposed in the tube body (31) and being capable of moving along the tube body (31) under the drive of the cooling medium; A transmission component (33), the transmission component (33) being drivingly connected to the slider (32); A rotating shaft (34), the rotating shaft (34) is drivingly connected to the transmission component (33), and the rotating shaft (34) is drivingly connected to at least one of the two adjacent heat sink fins (20) stacked together, and drives at least one of the heat sink fins (20) to rotate relative to each other.

4. The server radiator according to claim 3, characterized in that: One of the two adjacent heat dissipation fins (20) is fixedly arranged relative to the housing (10), and the other of the two adjacent heat dissipation fins (20) is connected to the rotating shaft (34) and rotates under the drive of the rotating shaft (34).

5. The server radiator according to claim 1, characterized in that: The housing (10) has a windward side, and the distances between the first ends (24) of two adjacently stacked heat dissipation fins (20) facing the windward side and the windward side are different.

6. The server radiator according to claim 5, characterized in that: Along the stacking direction, the distance between the first end (24) of each stacked heat dissipation fin (20) and the windward side first increases and then decreases, and the connecting line of the first end (24) of each stacked heat dissipation fin (20) forms an arc.

7. The server radiator according to claim 1, characterized in that: Some of the heat dissipation fins (20) are stacked to form a fin group, there are multiple fin groups, and each of the fin groups is arranged in sequence along a direction perpendicular to the stacking direction of the heat dissipation fins (20).

8. The server radiator according to claim 1, characterized in that: There are a plurality of intermediate flow channels (23), and each of the intermediate flow channels (23) is arranged in sequence and at intervals along the length direction of the heat dissipation fin (20); The server radiator further comprises a liquid inlet pipeline (40) and a liquid outlet pipeline (50), wherein the liquid inlet pipeline (40) is in communication with the liquid inlet flow channel (21), and the liquid outlet pipeline (50) is in communication with the liquid outlet flow channel (22), and the flow areas of the liquid inlet flow channel (21), the liquid outlet flow channel (22) and the intermediate flow channel (23) are all smaller than the flow areas of the liquid inlet pipeline (40) and the liquid outlet pipeline (50); The server radiator further comprises an angle adjustment device, the angle adjustment device comprising a tube body (31) for passing a cooling medium, a slider (32), a transmission component (33) and a rotating shaft (34); the slider (32) is movably arranged in the tube body (31) and can move along the tube body (31) under the drive of the cooling medium; the transmission component (33) is drivingly connected to both the slider (32) and the rotating shaft (34); the transmission component (33) comprises at least one of a gear rack and a crank slider (32); one of the two adjacent heat dissipation fins (20) stacked together is drivingly connected to the rotating shaft (34); the other of the two adjacent heat dissipation fins (20) stacked together is connected to the tube body (31); the rotating shaft (34) drives one of the two heat dissipation fins (20) to rotate so as to change the angle between the two heat dissipation fins (20); The shell (10) has a windward side, and the heat dissipation fin (20) has a first end (24) facing the windward side. Along the stacking direction, the distance between the first end (24) of each stacked heat dissipation fin (20) and the windward side first increases and then decreases, and a line connecting the first ends (24) of each stacked heat dissipation fin (20) forms an arc.

9. A server cooling system, characterized in that: include: The server radiator according to any one of claims 1 to 8; A fan (60), the fan (60) is directed toward the server radiator and blows air toward the server radiator for air cooling; A liquid cooling pipeline (70), the liquid cooling pipeline (70) is connected to the server radiator and supplies liquid to the server radiator for liquid cooling.

10. A server, characterized in that: The server heat dissipation system comprises components and the server heat dissipation system according to claim 9, wherein a server radiator of the server heat dissipation system is arranged at the component and performs heat exchange with the component.

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