Bus heat dissipation control method and bus heat dissipation control system of server

Abstract

The invention discloses a bus heat dissipation control method and a bus heat dissipation control system of a server, and relates to the technical field of servers. In response to at least one of a condition that a first temperature is greater than a first temperature threshold value, a first pressure is greater than a first pressure threshold value, a second temperature is greater than a second temperature threshold value and a second pressure is greater than a second pressure threshold value, the machine room liquid cooling heat dissipation device is controlled to be communicated with the liquid cooling heat dissipation channel of the bus heat dissipation structure, the machine room liquid cooling heat dissipation device is used for conducting heat dissipation on the bus, the heat dissipation effect of the machine room liquid cooling heat dissipation device is better than the air cooling heat dissipation effect on the bus through environment wind in a machine room, and therefore the heat dissipation effect of the bus is improved, and the service life of the bus is prolonged. The problem that the normal operation of the server in the machine room is influenced by the overtemperature of the bus is avoided, and the working reliability of the bus and the server is improved.

Description

Technical Field

[0001] The present application relates to the technical field of servers, and in particular to a busbar heat dissipation control method and a busbar heat dissipation control system of a server. Background Art

[0002] With the rapid development of informatization, the integration of communication equipment is becoming higher and higher, the configuration power density of servers is constantly increasing, and the power supply power of computer rooms is also getting higher and higher, resulting in higher and higher bus power supply power in the computer room system. The loss of bus power supply is converted into heat, and the heat dissipation capacity required by the bus is also getting higher and higher. Its heat dissipation effect is the key to the operation of the entire computer room. Therefore, bus heat dissipation is a problem. Once the bus works abnormally, it will directly affect the use of the computer room and the operation of the entire computer room server.

[0003] In the related art, the cold air provided by the air conditioner in the computer room is used to dissipate heat naturally from the busbar, or a fin heat exchange structure is set on the busbar, and the heat of the busbar is transferred to the fin heat exchange structure, which is then cooled by the cold air in the computer room. In addition, the fin heat exchange structure is generally set on the busbar main contactor, which cannot dissipate heat for the entire busbar, resulting in poor heat dissipation effect of the busbar. Summary of the Invention

[0004] The present application provides a busbar heat dissipation control method for a server and a server, thereby improving the heat dissipation effect of the server's busbar.

[0005] In a first aspect, the present application provides a method for controlling heat dissipation of a busbar of a server, comprising:

[0006] When the bus is in an air-cooled heat dissipation state, at least one of a first temperature, a second temperature, a first pressure, and a second pressure is obtained; wherein the first temperature is the temperature at the bus power supply location, the first pressure is the pressure of the liquid at the bus power supply location and in the liquid-cooling heat dissipation channel of the bus heat dissipation structure, the second temperature is the temperature of the liquid provided by the liquid-cooling heat dissipation device in the computer room, and the second pressure is the pressure of the liquid provided by the liquid-cooling heat dissipation device in the computer room;

[0007] In response to at least one of the first temperature being greater than a first temperature threshold, the first pressure being greater than a first pressure threshold, the second temperature being greater than a second temperature threshold, and the second pressure being greater than a second pressure threshold, the computer room liquid cooling device is controlled to be connected to the liquid cooling channel.

[0008] In a second aspect, the present application further provides a busbar heat dissipation control system, comprising:

[0009] A busbar heat dissipation structure and a liquid cooling device for a machine room; the busbar heat dissipation structure includes a liquid phase cavity, which is used to form a liquid cooling channel, and the liquid phase cavity is arranged on the outer surface of the busbar;

[0010] The liquid cooling heat dissipation channel is used to dissipate heat from the busbar by connecting to the liquid cooling heat dissipation device in the computer room;

[0011] A processor and a memory, wherein the processor executes the steps of the method provided in the first aspect by calling a program or instruction stored in the memory.

[0012] In a third aspect, the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein when the computer program is executed by a processor, the steps of the bus heat dissipation control method of the server as described in the first aspect are implemented.

[0013] The busbar heat dissipation control method and busbar heat dissipation control system of the server provided in the embodiments of the present application control the liquid cooling heat dissipation device in the computer room to be connected with the liquid cooling heat dissipation channel of the busbar heat dissipation structure in response to at least one of the first temperature being greater than the first temperature threshold, the first pressure being greater than the first pressure threshold, the second temperature being greater than the second temperature threshold, and the second pressure being greater than the second pressure threshold, and utilize the liquid cooling heat dissipation device in the computer room to dissipate heat from the busbar. The heat dissipation effect of the liquid cooling heat dissipation device in the computer room is better than the effect of air cooling the busbar using the ambient wind in the computer room, thereby improving the heat dissipation effect of the busbar, avoiding the problem of busbar overheating affecting the normal operation of the server in the computer room, and improving the reliability of the busbar and server operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 A schematic flow chart of a busbar heat dissipation control method for a server provided in an embodiment of the present application;

[0016] Figure 2 A schematic structural diagram of a busbar heat dissipation control system for a server provided in an embodiment of the present disclosure;

[0017] Figure 3 for Figure 2 A side view of the middle A area;

[0018] Figure 4 This is an enlarged top view of a busbar heat dissipation control system for a server provided by an embodiment of the present disclosure;

[0019] Figure 5 An enlarged schematic diagram of a busbar heat dissipation structure provided in an embodiment of the present disclosure;

[0020] Figure 6 A schematic diagram of a heat dissipation cycle of a busbar heat dissipation structure provided in an embodiment of the present disclosure;

[0021] Figure 7 A schematic structural diagram of a gas phase spacer unit provided in an embodiment of the present disclosure;

[0022] Figure 8 A schematic diagram of a specific process of a busbar heat dissipation control method for a server provided in an embodiment of the present disclosure;

[0023] Figure 9 A schematic structural diagram of a busbar heat dissipation control system for another server provided in an embodiment of the present disclosure.

[0024] Among them, 1. busbar heat dissipation structure; 2. computer room liquid cooling heat dissipation device; 3. computer room air cooling heat dissipation device; 4. outdoor liquid cooling heat dissipation device; 11. liquid phase cavity; 12. gas phase cavity; 13. gas-liquid spacer unit; 14. heat dissipation insulation coating; 15. liquid heat dissipation surface; 21. first computer room heat exchanger; 22. second computer room heat exchanger; 23. filter; 24. gas-liquid separation device; 25. drive pump; 26. first switch valve; 27. second switch valve; 28. first regulating valve; 29. second regulating valve 29; 31. third switch valve; 32. fourth switch valve; 41. outdoor heat exchanger; 42. fifth switch valve; 43. fifth regulating valve; 100. busbar. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present application, not all of the embodiments.

[0027] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] In the related art, the cold air provided by the air conditioner in the computer room is used to dissipate heat naturally from the busbar, or a fin heat exchange structure is set on the busbar. The heat of the busbar is transferred to the fin heat exchange structure and cooled by the cold air in the computer room. The fin heat exchange structure is generally set on the busbar main contact switch, which cannot dissipate heat for the entire busbar, resulting in poor heat dissipation effect of the busbar.

[0029] In order to solve the above problems, an embodiment of the present application provides a busbar heat dissipation control method for a server. Figure 1 This is a flow chart of a method for controlling the heat dissipation of a busbar of a server provided in an embodiment of the present application. Figure 1 As shown, the busbar heat dissipation control method of the server includes:

[0030] S101. When the busbar is in an air-cooled state, obtain at least one of a first temperature, a second temperature, a first pressure, and a second pressure.

[0031] Among them, the first temperature is the temperature at the bus power supply point, the first pressure is the liquid pressure at the bus power supply point and in the liquid cooling heat dissipation channel located in the bus heat dissipation structure, the second temperature is the liquid temperature provided by the liquid cooling heat dissipation device in the computer room, and the second pressure is the liquid pressure provided by the liquid cooling heat dissipation device in the computer room.

[0032] Figure 2 This is a schematic diagram of the structure of a busbar heat dissipation control system for a server provided in an embodiment of the present disclosure. Figure 3 for Figure 2 A side view of the area A in the middle. Figure 4 This is an enlarged top view of a busbar heat dissipation control system for a server provided by an embodiment of the present disclosure. Figure 5 This is an enlarged schematic diagram of a busbar heat dissipation structure provided by an embodiment of the present disclosure. Figure 6 A schematic diagram of a heat dissipation cycle of a busbar heat dissipation structure provided by an embodiment of the present disclosure. Figures 2 to 6 The busbar heat dissipation control system of the server includes a busbar heat dissipation structure 1 and a computer room liquid cooling device 2. The busbar heat dissipation structure 1 may include a liquid phase cavity 11, for example. The liquid phase cavity 11 is used to form a liquid cooling channel of the busbar heat dissipation structure 1. The liquid phase cavity 11 is arranged on the outer surface of the busbar 100. Figure 2 The figure also exemplarily shows auxiliary heat dissipation fins 6 provided on the busbar 100, which utilize the cold air in the machine room to perform auxiliary heat dissipation on the busbar 100.

[0033] The liquid cooling device 2 of the computer room may include, for example, a heat exchanger in the computer room. Figure 2The figure shows an example of a computer room liquid cooling device 2 including a first computer room heat exchanger 21 and a second computer room heat exchanger 22. The first computer room heat exchanger 21 can be used to connect to the liquid cooling channel of the busbar heat dissipation structure 1 to dissipate heat for the busbar 100. The first computer room heat exchanger 21 can be used to dissipate heat for the server in the cabinet. A filter 23, a gas-liquid separation device 24, a drive pump 25, a first switch valve 26 and a first regulating valve 28 are provided between the first computer room heat exchanger 21 and the liquid cooling channel. The filter 23 is used to filter impurities in the liquid cooling source flowing out of the first computer room heat exchanger 21. The gas-liquid separation device 24 is used to separate the gas that is not completely liquefied in the liquid cooling source. The drive pump 25 is used to drive the flow of the liquid cooling source. The first switch valve 26 and the second switch valve 27 are used to control the on / off of the computer room liquid cooling device 2 and the liquid cooling device. The first regulating valve 28 and the second regulating valve 29 are used to adjust the second pressure by their valve openings. In some embodiments, the first machine room heat exchanger 21 and the second machine room heat exchanger 22 can also be combined into one machine room heat exchanger, and the wiring method after replacement is not limited in the embodiment of the disclosure. The outdoor liquid cooling device 4 is used to cool the liquid cold source in the machine room liquid cooling device 2.

[0034] The air-cooling and heat dissipation device 3 of the machine room may include, for example, a fan heat exchanger. The air-cooling and heat dissipation device 3 of the machine room utilizes the ambient air in the machine room to cool the busbar 100 . Figure 6 The arrows represent the circulation directions of air cooling and liquid cooling. For example, the busbar heat dissipation structure 1 further includes a vapor chamber 12. The vapor chamber 12 and the computer room air cooling device 3 are controlled on and off by a third on / off valve 31. The computer room air cooling device 3 draws ambient air into the air cooling channel to dissipate heat from the busbar 100, or extracts hot air from the air cooling channel to the ambient air to dissipate heat from the busbar 100.

[0035] When the busbar is air-cooled, in order to determine the heat dissipation effect of the air-cooling on the busbar, it is necessary to obtain the temperature at the busbar power supply point as the first temperature, and the liquid pressure within the liquid-cooling channel of the busbar heat dissipation structure at the busbar power supply point as the second pressure. Furthermore, the liquid supply parameters of the computer room liquid-cooling device can indirectly reflect the heat dissipation of the busbar. The system liquid supply parameters must meet the preset heat dissipation conditions to ensure normal heat dissipation of the busbar. Therefore, it is also necessary to obtain system liquid supply parameters, such as the liquid temperature provided by the computer room liquid-cooling device as the second temperature, and the liquid pressure provided by the computer room liquid-cooling device as the second pressure.

[0036] Figure 2 The busbar power supply interface B is shown as an example. Figure 3exemplarily shows that a first temperature sensor 71 and a first pressure sensor 72 are provided at the busbar power supply location, the first temperature sensor 71 is used to obtain a first temperature, and the first pressure sensor 72 is used to obtain a first pressure.

[0037] Figure 3 The second temperature sensor 73, the second pressure sensor 74, the third temperature sensor 75, the third pressure sensor 76, the fourth temperature sensor 77 and the fourth pressure sensor 78 are shown by way of example. The second temperature sensor 73, the third temperature sensor 75 and the fourth temperature sensor 77 are used to obtain the second temperature, and the second pressure sensor 74, the third pressure sensor 76 and the fourth pressure sensor 78 are used to obtain the second pressure.

[0038] S102. In response to at least one of the first temperature being greater than a first temperature threshold, the first pressure being greater than a first pressure threshold, the second temperature being greater than a second temperature threshold, and the second pressure being greater than a second pressure threshold, controlling the liquid cooling device in the computer room to be connected to the liquid cooling channel.

[0039] Specifically, combined Figures 2 to 6 In response to at least one of the first temperature being greater than the first temperature threshold, the second pressure being greater than the first pressure threshold, the second temperature being greater than the second temperature threshold, and the second pressure being greater than the second pressure threshold, the filter 23, the gas-liquid separator 24, the drive pump 25, the first on / off valve 26, the second on / off valve 27, the first regulating valve 28, the second regulating valve 29, and the fourth on / off valve 32 between the computer room liquid cooling device 2 and the liquid cooling channel of the busbar heat dissipation structure 1 are opened, so that the computer room liquid cooling device 2 is connected to the liquid cooling channel of the busbar heat dissipation structure 1. The computer room liquid cooling device 2 provides a liquid cooling source to the busbar heat dissipation structure 1. The heat generated by the busbar 100 heats the liquid cooling source until it reaches a phase change point, causing the liquid cooling source to undergo a phase change. The phase change removes heat from the busbar 100, reducing the temperature of the busbar 100. The phase-changed liquid cooling source becomes a gas, which exchanges heat with the computer room liquid cooling device 2, reducing the temperature and pressure of the liquid cooling source, causing it to become a liquid and flow back to the busbar heat dissipation structure 1 for another phase change, thereby achieving a repeated heat exchange effect.

[0040] Therefore, in response to at least one of the first temperature being greater than the first temperature threshold, the first pressure being greater than the first pressure threshold, the second temperature being greater than the second temperature threshold, and the second pressure being greater than the second pressure threshold, it indicates that the heat dissipation of the busbar by the current air cooling is poor, and the busbar is cooled by the liquid cooling device in the computer room. The heat dissipation effect of the liquid cooling device in the computer room is better than the air cooling effect of the busbar by the ambient wind in the computer room, thereby improving the heat dissipation effect of the busbar, avoiding the problem of busbar overheating affecting the normal operation of the server in the computer room, and improving the reliability of the busbar and server operation.

[0041] Optionally, before controlling the liquid-cooling heat dissipation device in the computer room to be connected to the liquid-cooling heat dissipation channel of the busbar heat dissipation structure, it also includes: obtaining the ambient temperature; in response to the ambient temperature being less than or equal to a third temperature threshold, controlling the air-cooling heat dissipation device in the computer room to be connected to the air-cooling heat dissipation channel of the busbar heat dissipation structure, and controlling the liquid-cooling heat dissipation device in the computer room to be disconnected from the liquid-cooling heat dissipation channel of the busbar heat dissipation structure; in response to the ambient temperature being greater than the third temperature threshold, controlling the liquid-cooling heat dissipation device in the computer room to be connected to the liquid-cooling heat dissipation channel, and controlling the air-cooling heat dissipation device in the computer room to be disconnected from the air-cooling heat dissipation channel.

[0042] Specifically, before the liquid-cooling heat dissipation device in the control room is connected to the liquid-cooling heat dissipation channel of the busbar heat dissipation structure, the ambient temperature can be obtained. In response to the ambient temperature being less than or equal to the third temperature threshold, since the air-cooling heat dissipation device in the control room uses the ambient air to perform air cooling and heat dissipation on the busbar, the air-cooling heat dissipation device in the control room is connected to the air-cooling heat dissipation channel of the busbar heat dissipation structure to perform air cooling and heat dissipation on the busbar. For example, the switch valve between the air-cooling heat dissipation device in the control room and the air-cooling heat dissipation channel of the busbar heat dissipation structure can be opened, for example, Figure 2 The third switch valve 31 in the liquid cooling device of the computer room has a high power consumption, which can control the liquid cooling channel between the liquid cooling device of the computer room and the bus cooling structure to be shut off. For example, the switch valve and the regulating valve between the liquid cooling channel of the computer room liquid cooling device and the bus cooling structure can be closed, that is, the liquid cooling channel between the liquid cooling device of the computer room and the bus cooling structure can be closed. Figure 2 The fourth switch valve 32, the first switch valve 26, the second switch valve 27, the first regulating valve 28 and the second regulating valve 29 are configured to reduce power consumption.

[0043] In response to the ambient temperature being greater than the third temperature threshold, since the air-cooling heat dissipation device in the computer room utilizes the ambient air to cool the busbar, the busbar cannot be well cooled when the ambient temperature is high. At this time, the liquid-cooling heat dissipation device in the computer room is controlled to be connected to the liquid-cooling heat dissipation channel. For example, the switch valve between the liquid-cooling heat dissipation device in the computer room and the liquid-cooling heat dissipation channel of the busbar heat dissipation structure can be opened, for example, Figure 2 The fourth switch valve 32, the first switch valve 26, the second switch valve 27, the first regulating valve 28 and the second regulating valve 29 in the busbar are liquid-cooled to improve the heat dissipation effect of the busbar. And disconnect the air-cooling heat dissipation device in the machine room from the air-cooling heat dissipation channel, for example, shut down Figure 2 The third switch valve 31 in the circuit is used to prevent the busbar from overheating due to overheating of the ambient air.

[0044] Optionally, in response to the busbar heat dissipation parameters and / or system liquid supply parameters meeting preset heat dissipation conditions, controlling the computer room liquid cooling device to be connected to the liquid cooling channel of the busbar heat dissipation structure includes: controlling the valve opening between the computer room liquid cooling device and the liquid cooling channel to be the maximum opening; after controlling the valve opening between the computer room liquid cooling device and the liquid cooling channel to be the maximum opening, it also includes: obtaining a second pressure; in response to the second pressure being less than a pressure threshold, reducing the valve opening between the computer room liquid cooling device and the liquid cooling channel until the second pressure is equal to the pressure threshold.

[0045] Specifically, since the second pressure will affect the liquid phase change temperature in the liquid phase cavity of the busbar heat dissipation structure, and the liquid phase change temperature will affect the heat dissipation effect of the liquid-cooled heat dissipation channel, it is necessary to adjust the second pressure so that the second pressure is equal to the pressure threshold. Under the pressure threshold, the liquid cooling heat dissipation effect of the computer room liquid cooling device on the busbar can be optimized as much as possible.

[0046] Figure 7 A schematic structural diagram of a gas phase spacer unit provided in an embodiment of the present disclosure is shown in FIG. Figure 7 As shown, a gas-liquid spacer unit 13 is provided between the gas phase cavity 12 and the liquid phase cavity 11. The gas-liquid spacer unit 13 may be, for example, a deformable intermediate partition composed of a gas-phase permeable membrane that allows gas to pass but not liquid. The intermediate partition on one side of the gas phase cavity deforms toward the liquid phase cavity to prevent reverse osmosis of gas. After the liquid phase changes and vaporizes, the intermediate partition on the liquid phase cavity side deforms toward the gas phase cavity to increase gas permeation. When dissipating heat from the busbar, the intermediate partition should be kept as stable as possible. The pressure threshold may be, for example, the pressure that keeps the intermediate partition balanced and undeformed.

[0047] In order to improve the regulation rate of the second pressure, the valve opening between the liquid cooling device in the computer room and the liquid cooling channel of the busbar cooling structure can be controlled to be the maximum opening when the liquid cooling device in the computer room is connected to the liquid cooling channel of the busbar cooling structure. For example, Figure 2 The opening of at least one of the first regulating valve 28 and the second regulating valve 29 is at its maximum opening. When the valve is at its maximum opening, the second pressure is obtained. In response to the second pressure being less than the pressure threshold, it indicates that the valve opening is too large and the second pressure needs to be increased to be equal to the pressure threshold. At this time, the valve opening between the liquid cooling device in the computer room and the liquid cooling channel can be reduced, and the second pressure can be detected in real time during the process of adjusting the valve opening until the second pressure is equal to the pressure threshold, and then the adjustment of the valve opening is stopped.

[0048] Optionally, in response to the second pressure being less than the pressure threshold, reducing the valve opening between the computer room liquid cooling device and the liquid cooling channel until the second pressure equals the pressure threshold, including: in response to the second pressure being less than the pressure threshold and the difference between the second pressure and the pressure threshold being greater than the difference threshold, reducing the valve opening between the computer room liquid cooling device and the liquid cooling channel according to the first opening reduction value until the valve opening reaches a minimum opening or until the second pressure equals the pressure threshold; or, in response to the second pressure being less than the pressure threshold and the difference between the second pressure and the pressure threshold being less than or equal to the difference threshold, reducing the valve opening between the computer room liquid cooling device and the liquid cooling channel according to the second opening reduction value until the valve opening reaches a minimum opening or until the second pressure equals the pressure threshold. Wherein, the second opening reduction value is less than the first opening reduction value.

[0049] For example, when the valve opening is at its maximum opening, the difference between the second pressure P and the pressure threshold value Ps is greater than the difference threshold value. For example, when the second pressure P is less than the pressure threshold value Ps-0.2 bar, it indicates that the current second pressure is much different from the pressure threshold value. In order to increase the speed at which the second pressure reaches the pressure threshold value, the valve opening between the liquid cooling device in the computer room and the liquid cooling channel is reduced according to the first opening decrease value. For example, Figure 2 The opening of at least one of the first regulating valve 28 and the second regulating valve 29 is adjusted to 30% of the valve opening. At 30% of the valve opening, the second pressure is continuously detected. In response to the second pressure being still less than the pressure threshold when the valve opening is at the minimum opening, the control Figure 2 The valve openings of the first regulating valve 28 and the second regulating valve 29 are operated at the minimum opening. In response to the second pressure P being greater than the pressure threshold Ps and less than the pressure threshold Ps+0.2 bar, the valve openings are increased until the second pressure is equal to the pressure threshold.

[0050] The valve opening change N1 satisfies the following formula:

[0051]

[0052] Among them, N1 is the corrected valve opening change, N0 is the initial valve opening change, P is the current second pressure, and Ps is the set pressure.

[0053] The valve opening L1 satisfies the following formula: L1=L0+L0*N1, where L1 is the corrected valve opening and L0 is the initial valve opening.

[0054] When the valve opening is at its maximum opening, the difference between the second pressure P and the pressure threshold Ps is less than or equal to the difference threshold, indicating that the second pressure is not much different from the pressure threshold at this time. Reducing the valve opening too quickly will easily make the second pressure too high. Therefore, when the second pressure P is greater than the pressure threshold Ps-0.2 bar and less than the pressure threshold, the valve opening between the liquid cooling device in the computer room and the liquid cooling channel is reduced according to the second opening reduction value. The second opening reduction value is less than the first opening reduction value to ensure that the second pressure reaches the pressure threshold smoothly.

[0055] Optionally, controlling the liquid cooling heat dissipation device in the computer room to be in communication with the liquid cooling heat dissipation channel of the busbar heat dissipation structure includes: controlling the valve opening between the liquid cooling heat dissipation device in the computer room and the liquid cooling heat dissipation channel to be at a maximum opening;

[0056] After controlling the valve opening between the liquid cooling heat dissipation device in the computer room and the liquid cooling heat dissipation channel to the maximum opening, it also includes: obtaining a second pressure; in response to the second pressure being greater than a pressure threshold, reducing the speed of the driving pump of the liquid cooling heat dissipation device in the computer room.

[0057] For example, when the second pressure P is greater than the pressure threshold Ps, and the current valve opening is at the maximum opening, the second pressure cannot be further reduced by adjusting the valve opening. At this time, the speed of the driving pump of the liquid cooling device in the computer room can be reduced to reduce the second pressure.

[0058] Optionally, in response to the second pressure being greater than the pressure threshold, after reducing the speed of the driving pump of the computer room liquid cooling device, it also includes: in response to the second pressure being greater than the pressure threshold, controlling the connection between the computer room air cooling device and the air cooling channel of the busbar heat dissipation structure, and / or increasing the liquid supply flow from the outdoor liquid cooling device to the computer room liquid cooling device until the second pressure is equal to the pressure threshold.

[0059] Specifically, after reducing the speed of the driving pump of the liquid cooling device in the computer room, the second pressure is still greater than the pressure threshold. The air cooling device in the computer room can be controlled to connect with the air cooling channel of the busbar heat dissipation structure to perform air cooling on the busbar, and the second pressure can be reduced by combining air cooling with liquid cooling.

[0060] Alternatively, the liquid flow rate from the outdoor liquid-cooling device to the computer room liquid-cooling device can be increased. The outdoor liquid-cooling device is used to cool the liquid cooling source in the computer room liquid-cooling device, thereby reducing the temperature of the liquid cooling source in the computer room liquid-cooling device. This reduction in the temperature of the liquid cooling source can further reduce the second pressure until the second pressure reaches the pressure threshold. The liquid flow rate from the outdoor liquid-cooling device to the computer room liquid-cooling device can be adjusted by adjusting the fifth on-off valve 41 and the fifth regulating valve 42.

[0061] Exemplarily, the regulation of the liquid supply flow from the outdoor liquid cooling device to the liquid cooling device in the computer room needs to satisfy the following formula: L = △L*(T-Ts) / △T, where T is the temperature at the bus power supply point, Ts is the difference between the liquid supply temperature of the drive pump and the temperature of the outdoor liquid cooling device, and △L is the initial value of the liquid supply flow from the outdoor liquid cooling device to the liquid cooling device in the computer room.

[0062] Optionally, the busbar heat dissipation control method of the server further includes: in response to the second pressure being less than or equal to a pressure threshold, increasing the rotation speed of a driving pump of the liquid cooling device in the computer room until the second pressure is equal to the pressure threshold.

[0063] Specifically, after reducing the speed of the driving pump of the liquid cooling device in the computer room, in response to the second pressure being less than or equal to the pressure threshold, it indicates that the speed of the driving pump is too low, causing the second pressure to be too small, then the speed of the driving pump of the liquid cooling device in the computer room is increased to make the second pressure rise again until the second pressure is equal to the pressure threshold.

[0064] Figure 8 A schematic diagram of a specific process of a busbar heat dissipation control method for a server provided in an embodiment of the present disclosure is shown as follows: Figure 8 As shown, including:

[0065] S801. Server startup.

[0066] S802: Acquire the ambient temperature.

[0067] S803 , determine whether the ambient temperature is greater than a third temperature threshold; if so, execute step 804 ; if not, execute step 805 .

[0068] S804: The liquid cooling device in the control room is connected to the liquid cooling channel, and the air cooling device in the control room is disconnected from the air cooling channel.

[0069] S805: The air-cooling heat dissipation device in the control room is connected to the air-cooling heat dissipation channel of the busbar heat dissipation structure, and the liquid-cooling heat dissipation device in the control room is disconnected from the liquid-cooling heat dissipation channel of the busbar heat dissipation structure.

[0070] S806: Obtain at least one of the first temperature, the second temperature, the first pressure, and the second pressure.

[0071] S807. Determine whether at least one of the following conditions is met: the first temperature is greater than the first temperature threshold, the first pressure is greater than the first pressure threshold, the second temperature is greater than the second temperature threshold, and the second pressure is greater than the second pressure threshold; if so, execute step 808; if not, execute step 809.

[0072] S808. The liquid cooling heat dissipation device in the control room is connected to the liquid cooling heat dissipation channel of the busbar heat dissipation structure.

[0073] S809, the air-cooling heat dissipation device in the control room is connected to the air-cooling heat dissipation channel of the busbar heat dissipation structure.

[0074] S810: Ensure that the valve between the liquid cooling device and the liquid cooling channel in the control room is opened to the maximum degree.

[0075] S811. Determine whether the second pressure is less than the pressure threshold; if so, execute step 812; if not, execute step 815.

[0076] S812: Determine whether the difference between the second pressure and the pressure threshold is greater than the difference threshold; if so, execute step 813; if not, execute step 814.

[0077] S813: Reduce the valve opening between the liquid cooling device in the computer room and the liquid cooling channel according to the first opening reduction value until the valve opening reaches a minimum opening or until the second pressure is equal to the pressure threshold.

[0078] S814. Reduce the valve opening between the liquid cooling device in the computer room and the liquid cooling channel according to the second opening reduction value until the valve opening reaches a minimum opening or until the second pressure equals the pressure threshold.

[0079] S815. Reduce the speed of the drive pump of the liquid cooling device in the computer room.

[0080] S816. Determine whether the second pressure is greater than the pressure threshold; if so, execute step 817; if not, execute step 819.

[0081] S817, the air-cooling heat dissipation device in the control room is connected to the air-cooling heat dissipation channel of the busbar heat dissipation structure.

[0082] S818: Increase the liquid supply flow from the outdoor liquid cooling device to the liquid cooling device in the computer room until the second pressure is equal to the pressure threshold.

[0083] S819. Increase the speed of the drive pump of the liquid cooling device in the computer room.

[0084] An embodiment of the present disclosure provides a busbar heat dissipation control method for a server. In response to at least one of a first temperature being greater than a first temperature threshold, a first pressure being greater than a first pressure threshold, a second temperature being greater than a second temperature threshold, and a second pressure being greater than a second pressure threshold, the method controls a liquid cooling heat dissipation device in a computer room to be connected to a liquid cooling heat dissipation channel of a busbar heat dissipation structure, and utilizes the liquid cooling heat dissipation device in the computer room to dissipate heat from the busbar. The heat dissipation effect of the liquid cooling heat dissipation device in the computer room is better than the effect of air cooling the busbar using ambient wind in the computer room, thereby improving the heat dissipation effect of the busbar, avoiding the problem of busbar overheating affecting the normal operation of the server in the computer room, and improving the reliability of the operation of the busbar and the server.

[0085] An embodiment of the present application also provides a busbar heat dissipation control system for a server, comprising: a busbar heat dissipation structure and a liquid-cooled heat dissipation device in a computer room; the busbar heat dissipation structure includes a liquid phase cavity, which is used to form a liquid-cooled heat dissipation channel of the busbar heat dissipation structure, and the liquid phase cavity is arranged on the outer surface of the busbar; the liquid-cooled heat dissipation channel dissipates heat from the busbar by connecting to the liquid-cooled heat dissipation device in the computer room; a processor and a memory, wherein the processor executes the steps of the method provided in the above embodiment by calling a program or instruction stored in the memory.

[0086] Specifically, combined Figures 2 to 6 The busbar heat dissipation structure 1 may include, for example, a liquid phase cavity 11 , which is used to form a liquid cooling heat dissipation channel of the busbar heat dissipation structure 1 , and the liquid phase cavity 11 is arranged on the outer surface of the busbar 100 . Figure 2 The figure also exemplarily shows auxiliary heat dissipation fins 6 provided on the busbar 100, which utilize the cold air in the machine room to perform auxiliary heat dissipation on the busbar 100.

[0087] The liquid cooling device 2 of the computer room may include, for example, a heat exchanger in the computer room. Figure 2 The figure shows an example of a computer room liquid cooling device 2 including a first computer room heat exchanger 21 and a second computer room heat exchanger 22. The first computer room heat exchanger 21 can be used to connect to the liquid cooling channel of the busbar heat dissipation structure 1 to dissipate heat for the busbar 100. The first computer room heat exchanger 21 can be used to dissipate heat for the server in the cabinet. A filter 23, a gas-liquid separation device 24, a drive pump 25, a first switch valve 26 and a first regulating valve 28 are provided between the first computer room heat exchanger 21 and the liquid cooling channel. The filter 23 is used to filter impurities in the liquid cooling source flowing out of the first computer room heat exchanger 21. The gas-liquid separation device 24 is used to separate the gas that is not completely liquefied in the liquid cooling source. The drive pump 25 is used to drive the flow of the liquid cooling source. The first switch valve 26 and the second switch valve 27 are used to control the on / off of the computer room liquid cooling device 2 and the liquid cooling device. The first regulating valve 28 and the second regulating valve 29 are used to adjust the second pressure by their valve openings. In some embodiments, the first machine room heat exchanger 21 and the second machine room heat exchanger 22 can also be combined into one machine room heat exchanger, and the wiring method after replacement is not limited in the embodiment of the disclosure. The outdoor liquid cooling device 4 is used to cool the liquid cold source in the machine room liquid cooling device 2.

[0088] The air-cooling and heat dissipation device 3 of the machine room may include, for example, a fan heat exchanger. The air-cooling and heat dissipation device 3 of the machine room utilizes the ambient wind in the machine room to dissipate heat from the busbar 100 . Figure 6 The arrows in the figure represent the circulation directions of air cooling and liquid cooling.

[0089] In some embodiments, Figure 9 This is a structural diagram of another busbar heat dissipation control system of a server provided in an embodiment of the present disclosure, such as Figure 9As shown, it also includes a processor 92 and a memory 91. The processor 92 executes the steps of the control method of the bus heat dissipation control system of the server provided by any of the above embodiments by calling the program or instructions stored in the memory 91.

[0090] It is understood that the memory in this embodiment can be volatile memory or non-volatile memory, or can include both volatile and non-volatile memory. In some embodiments, the memory stores the following elements: executable units or data structures, or subsets thereof, or extended sets thereof, operating systems and applications. In the embodiments of the present disclosure, the processor executes the steps of each method embodiment provided in the embodiments of the present disclosure by calling programs or instructions stored in the memory.

[0091] The method provided by the embodiment of the present disclosure can be applied to a processor or implemented by a processor. The processor can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of the hardware in the processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0092] The steps of the method provided in the embodiments of the present disclosure can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software units in the decoding processor. The software units can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the method.

[0093] The busbar heat dissipation control system of the server may further include one or more physical components, based on instructions generated by the processor when executing the busbar heat dissipation control method for the server provided in the embodiment of the present application. Different physical components may be provided within the busbar heat dissipation control system of the server, or outside the busbar heat dissipation control system of the server, such as in a cloud server. Each physical component cooperates with the processor and memory to implement the functions of the busbar heat dissipation control system of the server in this embodiment.

[0094] In other embodiments, the busbar heat dissipation control system of the server may further include other structural or functional components known to those skilled in the art, which are neither detailed nor limited herein.

[0095] Optionally, combined Figures 2 to 7 The busbar heat dissipation structure 1 also includes a gas phase cavity 12, which is used to form an air-cooling heat dissipation channel of the busbar heat dissipation structure 1. The gas phase cavity 12 and the liquid phase cavity 11 are alternately arranged on the outer surface of the busbar, and a gas-liquid spacing unit 13 is arranged between the gas phase cavity 12 and the liquid phase cavity 11; the busbar heat dissipation control system also includes a computer room air-cooling heat dissipation device 3, and the air-cooling heat dissipation channel dissipates heat from the busbar 100 by connecting with the computer room air-cooling heat dissipation device 3.

[0096] Specifically, the computer room air-cooling and heat dissipation device 3 may include a fan heat exchanger, for example. The gas phase cavity 12 and the computer room air-cooling and heat dissipation device 3 are controlled on and off by a third switch valve 31. The computer room air-cooling and heat dissipation device 3 introduces ambient air into the air-cooling and heat dissipation channel to dissipate heat for the bus, or the computer room air-cooling and heat dissipation device 3 extracts the hot air in the air-cooling and heat dissipation channel to the environment to dissipate heat for the bus.

[0097] Figure 7 It is exemplarily shown that the position where the busbar heat dissipation structure 1 and the busbar 100 contact is provided with a heat dissipation insulating coating 14 to improve the heat dissipation of the busbar 100 while preventing the busbar 100 from short-circuiting. The surface of the liquid phase cavity 11 is provided with a concave and convex liquid heat dissipation surface 15 to increase the surface area of the liquid heat dissipation surface and further improve the heat dissipation effect of the busbar 100. The gas-liquid spacer unit 13 can be, for example, a deformable intermediate partition, and the intermediate partition is composed of a gas-phase permeable membrane. The gas-phase permeable membrane allows gas to pass through but does not allow liquid to pass through. The intermediate partition on one side of the gas phase cavity deforms toward the liquid phase cavity to prevent gas reverse osmosis. After the liquid phase changes and gasifies, the intermediate partition on one side of the liquid phase cavity deforms toward the gas phase cavity to increase gas permeation.

[0098] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. The computer program is configured to execute the steps of any of the above method embodiments when running.

[0099] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0100] An embodiment of the present application further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0101] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0102] The busbar heat dissipation control method and busbar heat dissipation control system of the server provided in the present application control the liquid cooling heat dissipation device of the computer room to be connected with the liquid cooling heat dissipation channel of the busbar heat dissipation structure in response to at least one of the first temperature being greater than the first temperature threshold, the first pressure being greater than the first pressure threshold, the second temperature being greater than the second temperature threshold, and the second pressure being greater than the second pressure threshold, and utilize the liquid cooling heat dissipation device of the computer room to dissipate heat from the busbar. The heat dissipation effect of the liquid cooling heat dissipation device of the computer room is better than the effect of air cooling the busbar using the ambient wind in the computer room, thereby improving the heat dissipation effect of the busbar, avoiding the problem of busbar overheating affecting the normal operation of the server in the computer room, and improving the reliability of the busbar and server operation.

[0103] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0104] The above are merely specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to these embodiments herein, but is intended to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A busbar heat dissipation control method for a server, characterized in that: include: When the bus is in an air-cooled heat dissipation state, at least one of a first temperature, a second temperature, a first pressure, and a second pressure is obtained; wherein the first temperature is the temperature at the bus power supply location, the first pressure is the pressure of the liquid at the bus power supply location and in the liquid-cooling heat dissipation channel of the bus heat dissipation structure, the second temperature is the temperature of the liquid provided by the liquid-cooling heat dissipation device in the computer room, and the second pressure is the pressure of the liquid provided by the liquid-cooling heat dissipation device in the computer room; In response to at least one of the first temperature being greater than a first temperature threshold, the first pressure being greater than a first pressure threshold, the second temperature being greater than a second temperature threshold, and the second pressure being greater than a second pressure threshold, the computer room liquid cooling device is controlled to be connected to the liquid cooling channel.

2. The busbar heat dissipation control method of a server according to claim 1, characterized in that: Before the liquid cooling heat dissipation device in the control room is connected to the liquid cooling heat dissipation channel of the busbar heat dissipation structure, the following steps are also included: Get the ambient temperature; In response to the ambient temperature being less than or equal to a third temperature threshold, controlling the air-cooling heat dissipation device in the computer room to be connected to the air-cooling heat dissipation channel of the busbar heat dissipation structure, and controlling the liquid-cooling heat dissipation device in the computer room to be disconnected from the liquid-cooling heat dissipation channel of the busbar heat dissipation structure; In response to the ambient temperature being greater than a third temperature threshold, the liquid cooling heat dissipation device in the computer room is controlled to be connected to the liquid cooling heat dissipation channel, and the air cooling heat dissipation device in the computer room is controlled to be disconnected from the air cooling heat dissipation channel.

3. The busbar heat dissipation control method of a server according to claim 1, characterized in that: The control room liquid cooling and heat dissipation device is connected to the liquid cooling and heat dissipation channel of the busbar heat dissipation structure, and includes: Controlling the valve opening between the liquid cooling heat dissipation device in the computer room and the liquid cooling heat dissipation channel to a maximum opening; After controlling the valve opening between the liquid cooling and heat dissipation device in the computer room and the liquid cooling and heat dissipation channel to be at the maximum opening, the method further includes: Obtaining a second pressure; In response to the second pressure being less than a pressure threshold, the valve opening between the liquid cooling heat dissipation device in the computer room and the liquid cooling heat dissipation channel is reduced until the second pressure is equal to the pressure threshold.

4. The busbar heat dissipation control method of a server according to claim 3, characterized in that: In response to the second pressure being less than a pressure threshold, reducing the valve opening between the liquid cooling heat dissipation device in the computer room and the liquid cooling heat dissipation channel until the second pressure is equal to the pressure threshold, includes: In response to the second pressure being less than a pressure threshold and the difference between the second pressure and the pressure threshold being greater than a difference threshold, reducing the valve opening between the computer room liquid cooling device and the liquid cooling channel according to the first opening reduction value until the valve opening reaches a minimum opening or until the second pressure is equal to the pressure threshold; Alternatively, in response to the second pressure being less than a pressure threshold, and the difference between the second pressure and the pressure threshold being less than or equal to a difference threshold, reducing the valve opening between the computer room liquid cooling device and the liquid cooling channel according to a second opening reduction value until the valve opening reaches a minimum opening or until the second pressure is equal to the pressure threshold; The second opening decrease value is smaller than the first opening decrease value.

5. The busbar heat dissipation control method of a server according to claim 3, characterized in that: The control room liquid cooling heat dissipation device is connected to the liquid cooling heat dissipation channel of the busbar heat dissipation structure, comprising: controlling the valve opening between the liquid cooling heat dissipation device in the control room and the liquid cooling heat dissipation channel to be the maximum opening; After controlling the valve opening between the liquid cooling and heat dissipation device in the computer room and the liquid cooling and heat dissipation channel to be at the maximum opening, the method further includes: Obtaining a second pressure; In response to the second pressure being greater than a pressure threshold, the rotational speed of a driving pump of the liquid cooling device in the computer room is reduced.

6. The busbar heat dissipation control method of a server according to claim 5, characterized in that: After reducing the rotation speed of the driving pump of the liquid cooling device in the computer room in response to the second pressure being greater than the pressure threshold, the method further includes: In response to the second pressure being greater than the pressure threshold, the air-cooled heat dissipation device in the computer room is controlled to be connected to the air-cooled heat dissipation channel of the busbar heat dissipation structure, and / or the liquid supply flow from the outdoor liquid-cooled heat dissipation device to the liquid-cooled heat dissipation device in the computer room is increased until the second pressure is equal to the pressure threshold.

7. The busbar heat dissipation control method for a server according to claim 6, characterized in that: Also includes: In response to the second pressure being less than or equal to a pressure threshold, the rotational speed of a driving pump of the liquid cooling device in the computer room is increased until the second pressure is equal to the pressure threshold.

8. A busbar heat dissipation control system for a server, characterized in that: include: Busbar heat dissipation structure and equipment room liquid cooling device; The busbar heat dissipation structure includes a liquid phase cavity, which is used to form a liquid cooling heat dissipation channel of the busbar heat dissipation structure, and the liquid phase cavity is arranged on the outer surface of the busbar; The liquid cooling heat dissipation channel is connected to the liquid cooling heat dissipation device in the equipment room to dissipate heat for the busbar; A processor and a memory, wherein the processor executes the steps of the method according to any one of claims 1 to 7 by calling a program or instruction stored in the memory.

9. The busbar heat dissipation control system of the server according to claim 8, characterized in that: The busbar heat dissipation structure further includes a gas phase cavity, which is used to form an air-cooling heat dissipation channel of the busbar heat dissipation structure. The gas phase cavity and the liquid phase cavity are alternately arranged on the outer surface of the busbar, and a gas-liquid spacer unit is provided between the gas phase cavity and the liquid phase cavity; The busbar heat dissipation control system further includes an air-cooling heat dissipation device in a machine room, and the air-cooling heat dissipation channel dissipates heat from the busbar by being connected to the air-cooling heat dissipation device in the machine room.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, the steps of the bus heat dissipation control method for a server according to any one of claims 1 to 7 are implemented.

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