Server heat dissipation device, server and server heat dissipation control method

Abstract

The invention relates to the field of server heat dissipation, and discloses a server heat dissipation device, a server and a server heat dissipation control method. The server comprises a sealed shell; the plurality of first power devices and the plurality of second power devices are arranged in the shell; the phase change liquid cooling loop is arranged in the shell and is used for transmitting a phase change working medium; the phase change liquid cooling loop comprises a transmission pipeline and a plurality of cold plates, the transmission pipeline is communicated with the cold plates, the cold plates are located on one side of the second power device, and phase change working media flow in the cold plates; the transmission pipeline comprises an input pipeline and an output pipeline, the input pipeline is communicated with the liquid cooling inlet in the shell, and the output pipeline is communicated with the liquid cooling outlet in the shell; and the shell is filled with the oil cooling medium, and the oil cooling medium is in contact with the first power device, the second power device and the phase change liquid cooling loop. The problem of compatibility between immersion cooling liquid and components and the problem of low heat dissipation energy efficiency of a server can be solved, and meanwhile, the immersion cooling liquid is adaptive to conventional refrigerants, so that the immersion cooling liquid cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of server heat dissipation, and particularly to a server heat dissipation device, a server, and a server heat dissipation control method. Background Art

[0002] With the continuous increase in the power consumption of server chips in data centers and the continuous improvement of the energy efficiency requirements for system operation, servers are increasingly dependent on heat dissipation technologies. The data center has basically completed the technology upgrade from air cooling to liquid cooling. Although the more advanced immersion liquid cooling technology has high energy efficiency, many technical problems are encountered in the implementation process. For example, when using fluorinated liquid as the immersion coolant, on the one hand, there is a problem of compatibility between the fluorinated liquid and components, and on the other hand, there are also high costs and environmental protection problems of the fluorinated liquid; when using oil as the immersion coolant, the oil is difficult to undergo a phase change, resulting in low energy efficiency. At the same time, the viscosity of the oil is too high and the specific heat capacity is small, resulting in low heat dissipation energy efficiency.

[0003] In view of this, the present invention is specifically proposed. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a server heat dissipation device, a server, and a server heat dissipation control method to solve the problems of compatibility between the immersion coolant and components and low server heat dissipation energy efficiency.

[0005] An embodiment of the present invention provides a server, including:

[0006] A sealed housing;

[0007] A plurality of first power devices and second power devices, installed in the housing, the power of the first power device being less than or equal to a preset power threshold, and the power of the second power device being greater than the preset power threshold;

[0008] A phase change liquid cooling circuit, disposed in the housing for transporting a phase change working fluid; the phase change liquid cooling circuit includes a transmission pipeline and a plurality of cold plates, the transmission pipeline and the cold plates are connected, and the cold plates are located on one side of the second power device; the transmission pipeline includes an input pipeline and an output pipeline, the input pipeline is connected to the liquid cooling inlet on the housing, and the output pipeline is connected to the liquid cooling outlet on the housing;

[0009] An oil-based cooling medium, filled in the housing, the oil-based cooling medium being in contact with the first power device, the second power device, and the phase change liquid cooling circuit.

[0010] Exemplarily, the server is the server unit in the following content.

[0011] An embodiment of the present invention provides a server heat dissipation device, including a liquid cooling system and a condensation circulation system;

[0012] The liquid cooling system includes an oil-based cooling medium for filling in the housing of the server and a phase change liquid cooling circuit disposed in the housing; the phase change liquid cooling circuit is used to transport a phase change working fluid; the phase change liquid cooling circuit includes a transmission pipeline and a plurality of cold plates, and the transmission pipeline is communicated with the cold plates; the transmission pipeline includes an input pipeline and an output pipeline, the input pipeline is communicated with the liquid cooling inlet on the housing, and the output pipeline is communicated with the liquid cooling outlet on the housing;

[0013] The input port of the condensation circulation system is connected to the liquid cooling outlet, and the output port of the condensation circulation system is connected to the liquid cooling inlet. The condensation circulation system is used to condense the phase change working fluid flowing out of the server and transport the condensed phase change working fluid to the server.

[0014] An embodiment of the present invention provides a server, including a plurality of server units and the server heat dissipation device provided by the embodiment of the present invention. The server units and the server heat dissipation device share the liquid cooling system.

[0015] An embodiment of the present invention provides a server heat dissipation control method, which is applied to the server provided by the embodiment of the present invention. The condensation circulation system in the server includes a fan driver, a fan, a first vapor-liquid separator, a condenser, a circulation pump, a pressure gauge, a first valve, and a second valve; the fan driver includes a turbine, a voltage regulator, a transformer, and a storage battery connected in sequence; the method includes:

[0016] Based on the pressure measured by the pressure gauge being greater than or equal to a preset pressure threshold, open the first valve and close the second valve;

[0017] Based on the pressure measured by the pressure gauge being less than the preset pressure threshold, close the first valve and open the second valve.

[0018] The embodiment of the present invention has the following technical effects:

[0019] Fill the server unit's housing with an oil-based cooling medium. Use the oil-based cooling medium as the immersion coolant, which directly contacts low-power devices and has good compatibility with components, enabling efficient immersion of low-power devices, solving the problem of efficient heat dissipation for low-power devices, and at the same time avoiding the problems of corrosion and reaction of fluorinated liquids to components. At the same time, use a phase change working fluid to dissipate heat with high heat flux density for high-power devices, achieving efficient heat dissipation for high-power devices. Moreover, the phase change working fluid is sealed in the cold plate and can withstand greater phase change pressure, solving the problem that traditional housings have low pressure-bearing capacity and can only use low-pressure phase change working fluids. In addition, the phase change working fluid and the oil-based cooling medium are isolated and heat-exchanged through the cold plate, that is, heat exchange also occurs between the phase change working fluid and the oil-based cooling medium, enabling the phase change working fluid and the oil-based cooling medium to cooperate with each other and complement each other to achieve efficient heat dissipation for the entire server. In this way, the embodiment of the present invention adopts a liquid cooling mode combining a phase change working fluid and an oil-based cooling medium to solve the compatibility problem between the immersion coolant and components and the problem of low heat dissipation energy efficiency of the server. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of a server provided by an embodiment of the present invention;

[0022] Figure 2 is a schematic structural diagram of a server unit provided by an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of another server provided by an embodiment of the present invention;

[0024] Figure 4 is a flowchart of a server heat dissipation control method provided by an embodiment of the present invention;

[0025] Figure 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described clearly and completely below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0027] Figure 1 is a schematic structural diagram of a server provided by an embodiment of the present invention. Refer to Figure 1 , the server specifically includes: a plurality of server units 1 (four server units 1 are exemplarily shown in the figure, and the four server units 1 are connected in parallel to the server cooling device 2) and the server cooling device 2.

[0028] Among them, the server cooling device 2 includes a liquid cooling system 21 and a condensation circulation system 22; the liquid cooling system 21 is placed inside the server unit 1, and the condensation circulation system 22 is placed outside the server unit 1. The server unit 1 can be a separate structure, and the server unit 1 and the server cooling device 2 share the liquid cooling system 21. In the embodiment of the present invention, the server unit 1 can be a blade server.

[0029] Exemplarily, Figure 2 shows the structure of a server unit. The liquid cooling system includes an oil cooling medium used to fill the housing of the server and a phase change liquid cooling circuit placed inside the housing. Correspondingly, as Figure 2As shown in the figure, the server unit 1 may include: a sealed housing 11; several first power devices 12 (such as small power devices like memory modules, etc.) and second power devices (not shown in the figure and blocked by the cold plate 213. The second power devices may be high-power devices such as power supply modules and communication modules), installed in the housing 11, where the power of the first power devices 12 is less than or equal to a preset power threshold, and the power of the second power devices is greater than the preset power threshold; wherein, the preset power threshold is a power value for measuring high-power devices and small-power devices, and is specifically set according to the actual situation; a phase change liquid cooling loop, placed in the housing 11, for transporting a phase change working fluid; the phase change liquid cooling loop includes a transmission pipeline and several cold plates 213, the transmission pipeline and the cold plates 213 are connected, and the cold plates 213 are located on one side of the second power devices. Exemplarily, the cold plates 213 are in contact with the second power devices; the transmission pipeline includes an input pipeline 211 and an output pipeline 212, the input pipeline 211 is connected to the liquid cooling inlet 111 on the housing 11, and the output pipeline 212 is connected to the liquid cooling outlet 112 on the housing 11; the input pipeline 211 can be divided into multiple paths according to the number of the second power devices, and each path can be provided with a cold plate 213, and finally converge on the output pipeline 212, and the heat-exchanged phase change working fluid is output to the liquid cooling outlet 112 by the output pipeline 212, so that the heat-exchanged phase change working fluid (gas-liquid two-phase working fluid) enters the condensation circulation system 22; an oil-based cooling medium 214, filled in the housing 11, and the oil-based cooling medium 214 is in contact with the first power devices 12, the second power devices, and the phase change liquid cooling loop.

[0030] In the above embodiment, the housing 11 is designed according to the form of the server motherboard, and the housing 11 can be sealed with a sealing ring. In some special maintenance-free application scenarios (such as edge computing scenarios, exemplarily, it can be a container environment, a tunnel environment, or a vehicle-mounted mobile data center, etc.), glue sealing can be directly adopted. The oil-based cooling medium 214 is a working fluid with good thermal conductivity such as mineral oil and synthetic oil and good compatibility with the motherboard and components. The phase change working fluid can adopt a fluorinated liquid, or a common refrigeration refrigerant such as R134A, R22, R404A, R1234yf, etc. When adopting a common refrigeration refrigerant, not only is the heat dissipation efficiency high, but also the price is cheap, and it has a broad market application prospect. The cold plate 213 can be made of copper or aluminum.

[0031] It can be understood that the "several" involved in the embodiments of the present invention refers to one, two, or more than two.

[0032] In some embodiments, a plurality of first columns and second columns are arranged inside the cold plate. Both ends of the first columns and the second columns are fixed on the side plates of the cold plate that are opposite in the thickness direction. The first columns are of solid structure, and the second columns are made of porous metal medium. Exemplarily, the first columns are welded inside the cold plate to support and fix the cold plate, so that the cold plate can withstand greater phase change pressure. The second columns are made of porous metal medium, which has a large number of tiny pores and a complex internal structure, providing a rich surface and sites for the vaporization of the phase change working fluid, and greatly increasing the number of vaporization nuclei. These vaporization nuclei can trigger the vaporization of the phase change working fluid at a lower wall superheat degree, making boiling easier to occur, thereby improving the heat dissipation efficiency. Optionally, the porous metal medium includes copper foam, aluminum foam, etc.

[0033] In some embodiments, a finned tube radiator 215 is arranged on the transmission pipeline to strengthen the natural convection heat dissipation of the oil-based cooling medium 214 in the housing 11 and the phase change working fluid in the phase change liquid cooling loop.

[0034] In addition, the server unit 1 further includes an electrical connector 2 and a signal transmission connector 3 arranged on the housing 11. The electrical connector 2 is used to supply power to the server unit 1, and the signal transmission connector 3 is used for input and output of signals. It can be understood that the server unit 1 includes but is not limited to the above structures. Only the main structures related to the solution of the present invention are exemplarily shown in the figure, and the structure of the server unit 1 specifically depends on the actual situation.

[0035] Furthermore, for the condensation circulation system 22, the input port of the condensation circulation system 22 is connected to the liquid cooling outlet 112, and the output port of the condensation circulation system 22 is connected to the liquid cooling inlet 111. The condensation circulation system 22 is used to condense the phase change working fluid (i.e., the gas-liquid two-phase working fluid) flowing out of the server unit 1 and transport the condensed phase change working fluid to the server unit 1, so as to realize the boiling and condensation circulation of the phase change working fluid.

[0036] This embodiment has the following technical effects: The oil-based cooling medium is filled in the housing of the server unit. By using the oil-based cooling medium as the immersion coolant, it directly contacts the low-power devices and has good compatibility with the components, achieving efficient immersion of the low-power devices, solving the problem of efficient heat dissipation for the low-power devices, and at the same time avoiding the problems of corrosion and reaction of the fluorinated liquid to the components. Meanwhile, the phase change working fluid is used to dissipate heat with high heat flux density for the high-power devices, achieving efficient heat dissipation for the high-power devices. Moreover, the phase change working fluid is sealed in the cold plate and can withstand greater phase change pressure, solving the problem that the traditional housing has low pressure-bearing capacity and can only use low-pressure phase change working fluids. In addition, the phase change working fluid and the oil-based cooling medium are isolated and heat-exchanged through the cold plate, that is, heat exchange also occurs between the phase change working fluid and the oil-based cooling medium, enabling the phase change working fluid and the oil-based cooling medium to cooperate with each other and complement each other to achieve efficient heat dissipation for the entire server. Thus, the embodiment of the present invention solves the compatibility problem between the immersion coolant and the components and the problem of low heat dissipation efficiency of the server by adopting the liquid cooling mode combining the phase change working fluid and the oil-based cooling medium.

[0037] In some embodiments, with continued reference to Figure 1 , the condensation circulation system 22 includes a fan driver 221, a fan 222, a first gas-liquid separator 223, a condenser 224, and a circulation pump 225; the input end of the fan driver 221 is connected to the output pipeline of the liquid cooling system 21, the output end of the fan driver 221 is connected to the liquid inlet port of the first gas-liquid separator 223, and the driving end of the fan driver 221 is connected to the fan 222; the gas outlet port of the first gas-liquid separator 223 is connected to the input end of the condenser 224, and the liquid outlet port of the first gas-liquid separator 223 is connected to the output end of the condenser 224; the output end of the condenser 224 is connected to the input end of the circulation pump 225, and the output end of the circulation pump 225 is connected to the input pipeline of the liquid cooling system 21; when the gas-liquid two-phase working fluid flowing out of the output pipeline passes through the fan driver 221, the fan driver 221 uses the gas expansion work in the gas-liquid two-phase working fluid to generate a driving force to drive the fan 222 to rotate; the fan 222 is used to enhance the external system heat dissipation of the condenser 224; the first gas-liquid separator 223 is used to separate the gas and liquid in the gas-liquid two-phase working fluid, and output the separated gas from the gas outlet port and output the separated liquid from the liquid outlet port; the circulation pump 225 is used to adjust the flow rate of the phase change working fluid.

[0038] In this embodiment, by setting a gas expansion work recovery device, that is, the fan driver 221, the gas expansion work is used to push the fan 222 to rotate, thereby enhancing the condensation effect of the system and further reducing the fan energy efficiency of the refrigeration system.

[0039] Specifically, in one example, the fan driver 221 includes a turbine 2211, a voltage regulator 2212, a transformer 2213, and a storage battery 2214 connected in sequence; the gas-liquid two-phase working medium flows through the turbine 2211, and the storage battery 2214 is connected to the fan 222. The gas-liquid two-phase working medium drives the turbine 2211, and the turbine 2211 converts mechanical energy into electrical energy and outputs it to the storage battery 2214 through the voltage regulator 2212 and the transformer 2213; the storage battery 2214 uses the stored electrical energy to drive the fan 222 to rotate.

[0040] Considering that the gas-liquid two-phase working medium can drive the turbine 2211 only when the pressure is high enough, two branches can be set up. One branch passes through the turbine 2211, and the other branch directly reaches the first vapor-liquid separator 223. By monitoring the pressure of the gas-liquid two-phase working medium, it is determined whether to select the branch passing through the turbine 2211. Specifically, the condensation circulation system 22 further includes a pressure gauge 226, a first valve 31, and a second valve 32. The pressure gauge 226, the first valve 31, and the turbine 2211 are connected in series and are in parallel with the second valve 32; when the pressure measured by the pressure gauge 226 is greater than or equal to the preset pressure threshold, the first valve 31 is opened and the second valve 32 is closed; at this time, the pressure of the gas-liquid two-phase working medium is high enough, and the gas-liquid two-phase working medium flows through the turbine 2211 to drive the turbine 2211, so that the turbine 2211 converts mechanical energy into electrical energy. When the pressure measured by the pressure gauge 226 is less than the preset pressure threshold, the first valve 31 is closed and the second valve 32 is opened; at this time, the pressure of the gas-liquid two-phase working medium is low and cannot drive the turbine 2211, and the gas-liquid two-phase working medium directly flows to the first vapor-liquid separator 223 through the second valve 32. In addition, the condensation circulation system 22 may further include a pressure relief valve 227 to relieve pressure through the pressure relief valve 227 when the pressure of the gas-liquid two-phase working medium is too high.

[0041] Since there is a situation where the pressure of the gas-liquid two-phase working medium is small and the battery 2214 cannot be charged, the power of the battery 2214 continuously decreases, and there is a problem that the insufficient power cannot drive the fan 222 to rotate stably. Based on this, in some embodiments, the fan 222 is also connected to an external power source 100 (such as a mains power distribution cabinet), a first switch 33 is arranged between the fan 222 and the external power source 100, and a second switch 34 is arranged between the fan 222 and the battery 2214; when the power of the battery 2214 rises to a first preset power threshold, the first switch 33 is closed and the second switch 34 is opened, and at this time the battery 2214 drives the fan to rotate; when the power of the battery 2214 drops to a second preset power threshold, the first switch 33 is opened and the second switch 34 is closed, and at this time the external power source 100 drives the fan to rotate; in this way, the fan 222 can rotate continuously and stably. The above battery 2214 can have a power monitoring function. The first preset power threshold is greater than the second preset power threshold. The first preset power threshold is used to represent that the battery 2214 has sufficient power to drive the fan 222 to rotate stably, and the second preset power threshold is used to represent that the power of the battery 2214 is insufficient and cannot drive the fan 222 to rotate stably. Both the first switch 33 and the second switch 34 can be solenoid valves. It can be understood that when the power of the battery 2214 is between the first preset power threshold and the second preset power threshold, the battery 2214 can still drive the fan to rotate stably. By setting the discontinuous first preset power threshold and the second preset power threshold, when the power of the battery 2214 reaches the first preset power threshold, the fan can be driven to rotate stably for a long time.

[0042] The gas-liquid two-phase working medium enters the first gas-liquid separator 223 through the turbine 2211 or the second valve. After the first gas-liquid separator 223 separates the gas and liquid of the gas-liquid two-phase working medium, it transports the gas to the input end of the condenser 224, so that the fluid entering the condenser 224 is almost all gas phase, thereby greatly improving the heat transfer efficiency of the condenser 224; the gas becomes a low-temperature liquid after being condensed by the condenser 224. At the same time, the liquid is transported to the output end of the condenser 224. After this liquid is mixed with the above low-temperature liquid, it enters the circulation pump 225. The circulation pump transports the mixed liquid to the liquid cooling inlet of the server unit 1, and thus enters the phase change liquid cooling loop inside the server unit 1.

[0043] The above-mentioned mixed liquid may still contain a small amount of gas. To reduce the cavitation effect on the circulation pump 225 and extend the service life of the circulation pump 225, the condensation circulation system 22 further includes a second gas-liquid separator 228. The liquid inlet port of the second gas-liquid separator 228 is connected to the output end of the condenser 224, the gas outlet port of the second gas-liquid separator 228 is connected to the top of the condenser 224, and the liquid outlet port of the second gas-liquid separator 228 is connected to the input end of the circulation pump 225. In this way, the second gas-liquid separator 228 can further separate the gas, and effectively reduce the bubbles entering the blades of the circulation pump 225.

[0044] In some embodiments, the condensation circulation system 22 further includes a thermometer 229, a third valve 35, and a fourth valve 36. The thermometer 229 is disposed between the output pipeline of the liquid cooling system 21 and the condensation circulation system 22 for measuring the temperature of the gas-liquid two-phase working medium flowing out of the liquid cooling system 21. The third valve 35 and the circulation pump 225 are connected in series and then connected in parallel with the fourth valve 36. When the temperature measured by the thermometer 229 is greater than or equal to a preset temperature threshold (indicating that the temperature of the gas-liquid two-phase working medium is too high), and / or the server power is greater than or equal to a preset power threshold (indicating that the server consumes a large amount of power), the third valve 35 is opened and the fourth valve 36 is closed. At this time, the circulation pump 225 increases the flow rate of the phase change working medium provided to the server unit 1. When the temperature measured by the thermometer 229 is less than the preset temperature threshold and the server power is less than the preset power threshold, the third valve 35 is closed and the fourth valve 36 is opened. At this time, the circulation driving force is generated by the internal gravity difference of the phase change working medium, so that the phase change working medium enters the server unit 1. In this way, the pump drive and self-drive of the phase change working medium are realized, taking into account both efficiency and practicality, and the optimal energy efficiency is achieved. By circulating in this way, the heat generated by the server unit 1 is efficiently dissipated. In addition, the condensation circulation system 22 may further include a flow meter 230 and another pressure gauge 231. The flow meter 230 is used to monitor the flow rate of the phase change working medium output by the circulation pump 225, and the other pressure gauge 231 is used to monitor the pressure of the phase change working medium output by the circulation pump 225.

[0045] In another example, Figure 3 The structure of another server is shown. Figure 3 The server shown is Figure 1 different from the server shown in that, as Figure 3As shown, the fan driver 221 includes a rotor, which is connected to the fan 222 through a bearing. In this way, the high-pressure gas output by the server unit 1 drives the rotor to rotate, and the rotor then transfers the rotational mechanical energy to the fan 222 through the bearing, thereby driving the fan 222 to rotate, and further enhancing the heat dissipation of the condenser 224. In this example, the energy only undergoes one-level conversion, with higher efficiency. However, this driving method is not stable enough and is only suitable for occasions with good environmental conditions (such as low-temperature environments), and cannot make the fan 222 rotate stably, thereby affecting the heat dissipation effect of the condenser 224. Therefore, further, the fan 222 is also connected to an external power source 100, and a third switch 37 is provided between the fan 222 and the external power source 100. In occasions that are not the above-mentioned ones with good environmental conditions, the connection between the rotor and the fan can be disconnected, and the third switch 37 can be turned on, so that the external power source 100 directly drives the fan 222 to rotate stably. And in the above-mentioned occasions with good environmental conditions, the rotor can be connected to the fan through a bearing, and the third switch 37 can be turned off, and the fan 222 is driven to rotate by the rotor. In addition, a fan can also be added, which is connected to the external power source 100, and the external power source 100 drives this fan to rotate, so as to enhance the heat dissipation of the condenser 224.

[0046] In the above two types of servers (server systems), valves can be provided on the working fluid input pipeline and / or the working fluid output pipeline outside each server unit. By controlling the opening and closing of each valve, it is possible to select to cool the required server unit.

[0047] In addition, the embodiment of the present invention also provides a server heat dissipation control method. Specifically, Figure 4 is a flowchart of a server heat dissipation control method provided by an embodiment of the present invention. This server heat dissipation control method is applied to the server provided by the embodiment of the present invention and can be executed by a control device (such as a host computer). Among them, the condensation circulation system in the server includes a fan driver, a fan, a first vapor-liquid separator, a condenser, a circulation pump, a pressure gauge, a first valve, and a second valve; the fan driver includes a turbine, a voltage stabilizer, a transformer, and a storage battery connected in sequence. Refer to Figure 4 and this server heat dissipation control method specifically includes the following steps:

[0048] S310. Based on the pressure measured by the pressure gauge being greater than or equal to a preset pressure threshold, open the first valve and close the second valve.

[0049] S320. Based on the pressure measured by the pressure gauge being less than the preset pressure threshold, close the first valve and open the second valve.

[0050] Specifically, the pressure of the gas-liquid two-phase working medium flowing out of the server unit can be measured by a pressure gauge. When the measured pressure is greater than or equal to the preset pressure threshold, it indicates that the pressure of the gas-liquid two-phase working medium is large enough. At this time, the control device controls the first valve to open and the second valve to close. Correspondingly, the gas-liquid two-phase working medium will flow through the turbine and push the turbine, so that the turbine converts mechanical energy into electrical energy. The converted electrical energy is output to the storage battery after passing through the voltage stabilizer and the transformer in sequence. When the pressure measured by the pressure gauge is less than the preset pressure threshold, it indicates that the turbine cannot be pushed or the turbine cannot convert mechanical energy into electrical energy. At this time, the control device controls the first valve to close and the second valve to open. Correspondingly, the gas-liquid two-phase working medium will directly flow to the first gas-liquid separator through the second valve. The first gas-liquid separator separates the gas and liquid in the gas-liquid two-phase working medium, and inputs the separated gas into the condenser through the air outlet port, and outputs it after condensation by the condenser. At the same time, the first gas-liquid separator outputs the separated liquid from the liquid outlet port to the output end of the condenser, so that the liquid is mixed with the liquid formed by condensation by the condenser, and the mixed liquid is input to the circulation pump.

[0051] In some embodiments, the fan is also connected to an external power supply. A first switch is arranged between the fan and the external power supply, and a second switch is arranged between the fan and the storage battery. The method further includes:

[0052] Based on the power of the storage battery rising to the first preset power threshold, closing the first switch and opening the second switch; based on the power of the storage battery dropping to the second preset power threshold, opening the first switch and closing the second switch.

[0053] Specifically, the storage battery continuously stores the electrical energy converted by the turbine using the gas expansion work. When the power of the storage battery rises to the first preset power threshold, it indicates that the storage battery has sufficient power to drive the fan to rotate stably. At this time, the control device controls the first switch to close and the second switch to open, and the storage battery drives the fan to rotate. When the power of the storage battery drops to the second preset power threshold, it indicates that the power of the storage battery is not enough to drive the fan to rotate stably. At this time, the control device controls the first switch to open and the second switch to close, and the external power supply drives the fan to rotate. In this way, the continuous and stable rotation of the fan can be ensured.

[0054] In some embodiments, the condensation circulation system further includes a thermometer, a third valve, and a fourth valve. The method further includes:

[0055] Based on the temperature measured by the thermometer being greater than or equal to the preset temperature threshold, and / or the server power being greater than or equal to the preset power threshold, opening the third valve and closing the fourth valve; based on the temperature measured by the thermometer being less than the preset temperature threshold and the server power being less than the preset power threshold, closing the third valve and opening the fourth valve.

[0056] Specifically, the greater the power consumption of the server, the more heat is generated, and accordingly the temperature rises faster. To keep the server at the normal operating temperature, the flow rate of the phase change working fluid input to the server unit can be regulated by real-time monitoring of the temperature of the phase change working fluid or the server power. Exemplarily, when the temperature measured by the thermometer is greater than or equal to the preset temperature threshold, and / or the server power is greater than or equal to the preset power threshold, it indicates that the internal temperature of the server unit is too high and the server unit cannot be cooled to a suitable temperature currently. At this time, the control device opens the third valve and closes the fourth valve, and increases the flow rate of the phase change working fluid provided to the server unit by controlling the circulation pump, so as to further reduce the temperature of the server unit. When the temperature measured by the thermometer is less than the preset temperature threshold and the server power is less than the preset power threshold, it indicates that the temperature of the server unit is at the normal value and there is no need to adjust the flow rate of the phase change working fluid. At this time, the control device closes the third valve and opens the fourth valve, and generates a circulation driving force through the internal gravity difference of the phase change working fluid, so that the phase change working fluid enters the server unit.

[0057] For the steps, functions and effects of the server heat dissipation control method provided by the embodiments of the present invention, reference can be made to the foregoing server embodiments, and details are not described herein again.

[0058] Figure 5 It is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. As Figure 5 shown, the electronic device 400 includes one or more processors 401 and a memory 402.

[0059] The processor 401 may be a central processing unit (CPU) or other form of processing unit with data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device 400 to perform desired functions.

[0060] The memory 402 may include one or more computer program products, and the computer program products may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory, etc. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 401 may run the program instructions to implement the server heat dissipation control method of any embodiment of the present invention described above and / or other desired functions. Various contents such as initial external parameters and thresholds may also be stored in the computer-readable storage medium.

[0061] In one example, the electronic device 400 may further include: an input device 403 and an output device 404, and these components are interconnected through a bus system and / or other forms of connection mechanisms (not shown). The input device 403 may include, for example, a keyboard, a mouse, and so on. The output device 404 may output various information to the outside, including warning prompt information, braking force, etc. The output device 404 may include, for example, a display, a speaker, a printer, and a communication network and its connected remote output devices, and so on.

[0062] Of course, for simplicity, Figure 5 only some of the components related to the present invention in the electronic device 400 are shown, and components such as a bus, an input / output interface, and so on are omitted. In addition, according to specific application scenarios, the electronic device 400 may further include any other appropriate components.

[0063] In addition to the above methods and devices, an embodiment of the present invention may also be a computer program product, which includes computer program instructions, and when the computer program instructions are run by a processor, the processor is caused to execute the steps of the server heat dissipation control method provided by any embodiment of the present invention.

[0064] The computer program product may be written in any combination of one or more programming languages for programming code to perform the operations of the embodiments of the present invention. The programming languages include object-oriented programming languages, such as Java, C++, etc., and also include conventional procedural programming languages, such as the "C" language or similar programming languages. The programming code may be executed entirely on the user computing device, partially on the user device, executed as an independent software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0065] Furthermore, an embodiment of the present invention may also be a computer-readable storage medium, on which computer program instructions are stored, and when the computer program instructions are run by a processor, the processor is caused to execute the steps of the server heat dissipation control method provided by any embodiment of the present invention.

[0066] The computer-readable storage medium may adopt any combination of one or more readable media. The readable media may be a readable signal medium or a readable storage medium. The readable storage medium may include, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0067] It should be noted that the terms used in the present invention are only for describing specific embodiments and do not limit the scope of the present application. As shown in the specification of the present invention, unless the context clearly indicates otherwise, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include the plural. The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, or device comprising the element.

[0068] It should also be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention.

Claims

1. A server, characterized in that, Comprising: A sealed housing; A plurality of first power devices and second power devices, installed in the housing, the power of the first power device being less than or equal to a preset power threshold, and the power of the second power device being greater than the preset power threshold; A phase change liquid cooling loop, disposed in the housing for transporting a phase change working medium; the phase change liquid cooling loop includes a transmission pipeline and a plurality of cold plates, the transmission pipeline and the cold plates are connected, and the cold plates are located on one side of the second power device; the transmission pipeline includes an input pipeline and an output pipeline, the input pipeline is connected to the liquid cooling inlet on the housing, and the output pipeline is connected to the liquid cooling outlet on the housing; An oil-based cooling medium, filled in the housing, the oil-based cooling medium being in contact with the first power device, the second power device, and the phase change liquid cooling loop.

2. The server according to claim 1, wherein A plurality of first columns and second columns are provided inside the cold plate, and both ends of the first column and the second column are fixed to the opposite side plates of the cold plate in the thickness direction; the first column is a solid structure, and the second column is made of a porous metal medium.

3. The server according to claim 1, characterized in that A finned tube radiator is provided on the transmission pipeline.

4. The server according to claim 1, wherein The server is a blade server.

5. A server heat dissipation device, characterized in that, Including a liquid cooling system and a condensation circulation system; The liquid cooling system includes an oil-based cooling medium for filling in the housing of the server and a phase change liquid cooling loop disposed in the housing; the phase change liquid cooling loop is used for transporting a phase change working medium; the phase change liquid cooling loop includes a transmission pipeline and a plurality of cold plates, the transmission pipeline and the cold plates are connected; the transmission pipeline includes an input pipeline and an output pipeline, the input pipeline is connected to the liquid cooling inlet on the housing, and the output pipeline is connected to the liquid cooling outlet on the housing; The input port of the condensation circulation system is connected to the liquid cooling outlet, the output port of the condensation circulation system is connected to the liquid cooling inlet, and the condensation circulation system is used for condensing the phase change working medium flowing out of the server and transporting the condensed phase change working medium to the server.

6. The server heat dissipation device according to claim 5, characterized in that, The condensation circulation system includes a fan driver, a fan, a first gas-liquid separator, a condenser, and a circulation pump; The input end of the fan driver is connected to the output pipeline of the liquid cooling system, the output end of the fan driver is connected to the liquid inlet port of the first gas-liquid separator, and the driving end of the fan driver is connected to the fan; the gas outlet port of the first gas-liquid separator is connected to the input end of the condenser, and the liquid outlet port of the first gas-liquid separator is connected to the output end of the condenser; the output end of the condenser is connected to the input end of the circulation pump, and the output end of the circulation pump is connected to the input pipeline; When the gas-liquid two-phase working medium flowing out of the output pipeline flows through the fan driver, the fan driver uses the gas expansion work in the gas-liquid two-phase working medium to generate a driving force to drive the fan to rotate; The fan is used to enhance the external heat dissipation of the condenser system; The first gas-liquid separator is used to separate the gas and liquid in the gas-liquid two-phase working medium, and output the separated gas from the gas outlet port and output the separated liquid from the liquid outlet port; The circulating pump is used to regulate the flow rate of the phase change working fluid.

7. The server heat dissipation device according to claim 6, characterized in that, The fan driver includes a turbine, a voltage regulator, a transformer, and a storage battery connected in sequence; the gas-liquid two-phase working fluid flows through the turbine, and the storage battery is connected to the fan.

8. The server heat dissipation device according to claim 7, wherein The condensation circulation system further includes a pressure gauge, a first valve, and a second valve. The pressure gauge, the first valve, and the turbine are connected in series and then connected in parallel with the second valve; When the pressure measured by the pressure gauge is greater than or equal to a preset pressure threshold, the first valve opens and the second valve closes; when the pressure measured by the pressure gauge is less than the preset pressure threshold, the first valve closes and the second valve opens.

9. The server heat dissipation device according to claim 7, characterized in that, The fan is also connected to an external power source, and a first switch is provided between the fan and the external power source, and a second switch is provided between the fan and the storage battery; When the power of the storage battery rises to a first preset power threshold, the first switch closes and the second switch opens; when the power of the storage battery drops to a second preset power threshold, the first switch opens and the second switch closes; The first preset power threshold is greater than the second preset power threshold.

10. The server heat dissipation device according to claim 6, wherein The fan driver includes a rotor, and the rotor is connected to the fan through a bearing.

11. The server heat dissipation device according to claim 10, wherein The fan is also connected to an external power source, and a third switch is provided between the fan and the external power source.

12. The server heat dissipation device according to claim 6, characterized in that, The condensation circulation system further includes a second gas-liquid separator. The liquid inlet port of the second gas-liquid separator is connected to the output end of the condenser, the gas outlet port of the second gas-liquid separator is connected to the top end of the condenser, and the liquid outlet port of the second gas-liquid separator is connected to the input end of the circulating pump.

13. The server heat dissipation device according to claim 6, characterized in that, The condensation circulation system further includes a thermometer, a third valve, and a fourth valve; The thermometer is arranged between the output pipeline of the liquid cooling system and the condensation circulation system for measuring the temperature of the gas-liquid two-phase working fluid flowing out of the liquid cooling system; The third valve and the circulating pump are connected in series and then connected in parallel with the fourth valve; When the temperature measured by the thermometer is greater than or equal to a preset temperature threshold, and / or the server power is greater than or equal to a preset power threshold, the third valve opens and the fourth valve closes; when the temperature measured by the thermometer is less than the preset temperature threshold and the server power is less than the preset power threshold, the third valve closes and the fourth valve opens.

14. A server, characterized in that, It includes a plurality of server units and the server heat dissipation device according to any one of claims 5-13. The server unit is the server according to any one of claims 1-4, and the server unit and the server heat dissipation device share a liquid cooling system.

15. A server heat dissipation control method is applied to the server as described in claim 14. The condensation circulation system in the server includes a fan driver, a fan, a first vapor-liquid separator, a condenser, a circulation pump, a pressure gauge, a first valve, and a second valve; the fan driver includes a turbine, a voltage regulator, a transformer, and a storage battery connected in sequence; characterized in that, The method includes: Based on the pressure measured by the pressure gauge being greater than or equal to a preset pressure threshold, opening the first valve and closing the second valve to control the gas-liquid two-phase working fluid to flow through the turbine, so that the turbine converts mechanical energy into electrical energy and stores it in the storage battery to drive the fan to rotate; Based on the pressure measured by the pressure gauge being less than the preset pressure threshold, close the first valve and open the second valve to control the gas-liquid two-phase working medium to flow to the first vapor-liquid separator via the second valve.

16. The server heat dissipation control method according to claim 15, wherein The blower is also connected to an external power supply. A first switch is provided between the blower and the external power supply, and a second switch is provided between the blower and the storage battery; the method further includes: Based on the power of the storage battery rising to a first preset power threshold, close the first switch and open the second switch to control the storage battery to drive the blower to rotate; Based on the power of the storage battery dropping to a second preset power threshold, open the first switch and close the second switch to control the external power supply to drive the blower to rotate.

17. The server heat dissipation control method according to claim 15, wherein The condensation circulation system further includes a thermometer, a third valve, and a fourth valve; the method further includes: Based on the temperature measured by the thermometer being greater than or equal to the preset temperature threshold, and / or the server power being greater than or equal to the preset power threshold, open the third valve and close the fourth valve to control the circulation pump to increase the flow rate of the phase change working medium provided to the server unit; Based on the temperature measured by the thermometer being less than the preset temperature threshold and the server power being less than the preset power threshold, close the third valve and open the fourth valve to utilize the internal gravity difference of the phase change working medium to generate a circulation driving force and provide the phase change working medium to the server unit.

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