Liquid cooling heat dissipation system for multiple heat sources, control method, and control apparatus

Abstract

A liquid cooling heat dissipation system for multiple heat sources, a control method, and a control apparatus. The liquid cooling heat dissipation system is used for dissipating heat of a plurality of load units, and comprises: at least one fluid pump (1), a plurality of heat exchange modules (2), a fluid distributor (3), and heat dissipation modules (4). The fluid pump (1) is used for driving a fluid to flow, the plurality of heat exchange modules (2) are used for respectively carrying out heat exchange with heat sources of the plurality of load units, and the plurality of heat exchange modules (2) are connected in parallel by means of fluid branches. One end of the fluid distributor (3) is in communication with one end of the fluid pump (1), another end of the fluid distributor (3) is in communication with one end of a plurality of fluid branches, and the fluid distributor (3) is used for carrying out controlled distribution of the fluid outputted by the fluid pump (1) to the plurality of fluid branches. One end of the heat dissipation modules (4) is in communication with the other end of the plurality of fluid branches, and the other end of the heat dissipation modules (4) is in communication with the other end of the fluid pump (1). The liquid cooling heat dissipation system, the control method, and the control apparatus improve the overall heat dissipation capacity, exhibit good energy-saving effects, and achieve lower system noise while meeting the heat dissipation requirements of the multiple heat sources.

Description

Liquid cooling system, control method and control device for multiple heat sources Technical Field

[0001] The present invention relates to the technical field of heat source heat dissipation, and in particular to a liquid cooling heat dissipation system, a control method and a control device for multiple heat sources. Background Art

[0002] As the power consumption of CPU / GPU becomes higher and higher, air-cooled radiators are unable to meet their heat dissipation needs. Liquid-cooled radiators are being recognized by more and more consumers due to their safety and efficient heat dissipation performance, and are widely used in the mid-to-high-end heat dissipation field.

[0003] Existing liquid cooling radiators, whether split or integrated, are designed for a single load. When multiple loads have high cooling requirements, each requires a separate liquid cooling radiator. In actual use, when load power consumption is high, the system's cooling requirements increase. Due to the limited cooling capacity of the liquid cooling radiator, the CPU / GPU may overheat and experience frequency drops. When load power consumption is low, the system's cooling requirements decrease. However, since multiple liquid cooling radiators lack interaction, the water pump or cooling fan may continuously operate at high loads, causing noise and wasting cooling resources.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a liquid cooling heat dissipation system, control method and control device for multiple heat sources, which improve the total heat dissipation capacity and realize the intelligent allocation of heat dissipation resources. On the premise of meeting the heat dissipation requirements of each load, it is more energy-efficient and noise-reducing; it improves the problem of limited heat dissipation capacity of liquid cooling radiator due to increased power consumption of multiple loads, excessive noise and waste of heat dissipation resources.

[0006] To achieve the above-mentioned objectives, in a first aspect, the present invention provides a liquid cooling and heat dissipation system for multiple heat sources, which is used to dissipate heat for multiple load units. The system includes: at least one fluid pump, multiple heat exchange modules, a fluid distributor, and a heat dissipation module. The fluid pump is used to drive the flow of fluid. The multiple heat exchange modules are used to perform heat exchange with the heat sources of the multiple load units respectively, and the multiple heat exchange modules are connected in parallel through fluid branches. The input end of the fluid distributor is connected to one end of the fluid pump, and the output end of the fluid distributor is connected to one end of the multiple fluid branches. The fluid distributor is used to controllably distribute the fluid output by the fluid pump to the multiple fluid branches. One end of the heat dissipation module is connected to the other end of the multiple fluid branches, and the other end of the heat dissipation module is connected to the other end of the fluid pump. The heat dissipation module is used to dissipate heat for the fluid flowing through.

[0007] In one embodiment of the present invention, the liquid cooling and heat dissipation system for multiple heat sources further includes a control module electrically connected to the fluid pump and the fluid distributor, respectively, for controlling or driving the fluid pump and the fluid distributor to operate in a controlled manner.

[0008] In one embodiment of the present invention, the liquid cooling system for multiple heat sources also includes a cooling module fan for providing cooling airflow to the cooling module; wherein the cooling module fan is electrically connected to the control module; wherein the control module is also used to control or drive the cooling module fan to operate in a controlled manner.

[0009] In one embodiment of the present invention, the control module includes an information acquisition interface, which is used to be electrically connected to a host computer and is used to acquire the heat dissipation requirement information of the multiple load units.

[0010] In one embodiment of the present invention, the information acquisition interface is used to be electrically connected to the cooling fan control / drive output interface of the host computer, and the cooling control / drive output signal of the host computer is a PWM signal.

[0011] In one embodiment of the present invention, the information acquisition interface is used to be electrically connected to the communication interface of the host computer, and obtain the heat dissipation requirement information of the multiple load units by communicating with the host computer.

[0012] In one embodiment of the present invention, there are multiple heat dissipation modules, and the multiple heat dissipation modules, the fluid pump and the fluid distributor form a series main circuit, and the series main circuit and the multiple fluid branches connected in parallel form a closed loop.

[0013] In one embodiment of the present invention, the number of the heat dissipation modules and the fluid pumps are both multiple, a part of the heat dissipation modules, a part of the fluid pumps and the fluid distributors form a series main circuit, the series main circuit and a part of the fluid branches connected in parallel form a closed loop, another part of the heat dissipation modules, another part of the fluid pumps and the fluid distributors form another series main circuit, the other series main circuit and another part of the fluid branches connected in parallel form a closed loop.

[0014] In one embodiment of the present invention, the minimum fluid distribution amount of the fluid distributor corresponding to each of the fluid branches is not less than 20%, and the maximum fluid distribution amount does not exceed 80%; or the minimum fluid distribution amount of the fluid distributor corresponding to each of the fluid branches is not less than 10%, and the maximum fluid distribution amount does not exceed 90%.

[0015] In a second aspect, the present invention provides a control method for a liquid-cooled heat dissipation system with multiple heat sources, which is applied to the control module of the liquid-cooled heat dissipation system with multiple heat sources as described above, and the control method includes: obtaining the heat dissipation requirement information of the multiple load units; generating a drive signal according to the heat dissipation requirement information of the multiple load units; controlling / driving the operation of the fluid distributor, the fluid pump and / or the heat dissipation module fan according to the drive signal; wherein the rotation speed of the fluid pump and / or the rotation speed of the heat dissipation module fan is positively correlated with the average value or weighted average value of the heat dissipation requirement information of the multiple load units; wherein the diversion ratio of the fluid distributor is consistent with or positively correlated with the ratio of the heat dissipation requirement information of the multiple load units.

[0016] In one embodiment of the present invention, the method for obtaining the heat dissipation requirement information of the plurality of load units includes: obtaining a heat dissipation control / driving output signal of the host computer as the heat dissipation requirement information of the load units.

[0017] In one embodiment of the present invention, the heat dissipation control / driving output signal of the host computer is a PWM signal.

[0018] In one embodiment of the present invention, the method for obtaining the heat dissipation requirement information of the plurality of load units includes: obtaining the heat dissipation requirement information of the plurality of load units by communicating with the host computer.

[0019] In one embodiment of the present invention, the method for controlling / driving the operation of the fluid distributor, the fluid pump and / or the heat dissipation module fan according to the heat dissipation requirement information of the multiple load units includes: obtaining first heat dissipation requirement information of the first load unit and second heat dissipation requirement information of the second load unit to generate a total heat dissipation requirement; generating a distribution ratio of the fluid distributor and a heat dissipation module fan PWM according to the total heat dissipation requirement; generating a fluid pump PWM according to the heat dissipation module fan PWM; and controlling / driving the fluid distributor, the fluid pump and / or the heat dissipation module fan according to the respective ratios of the fluid distributor, the heat dissipation module fan PWM and the fluid pump PWM.

[0020] In one embodiment of the present invention, the control method for a liquid cooling system with multiple heat sources further includes: sending operating status information of the fluid distributor, the fluid pump and / or the cooling module fan to the host computer.

[0021] In one embodiment of the present invention, the operating status information of the fluid distributor, the fluid pump and / or the heat dissipation module fan includes the operating status information of the fluid distributor, the fluid pump and / or the heat dissipation module fan obtained in real time; or includes descriptive information for controlling / driving the fluid distributor, the fluid pump and / or the heat dissipation module fan.

[0022] In a third aspect, the present invention provides a control device for a liquid cooling and heat dissipation system with multiple heat sources, which is applied to the control method for a liquid cooling and heat dissipation system with multiple heat sources as described above, and the control device includes: an acquisition unit, a generation unit, and a drive unit. The acquisition unit is used by the control module to acquire the heat dissipation requirement information of the multiple load units; the generation unit is used by the control module to generate a drive signal according to the heat dissipation requirement information of the multiple load units; the drive unit is used by the control module to control / drive the operation of the fluid distributor, the fluid pump, and / or the heat dissipation module fan according to the drive signal; wherein the rotation speed of the fluid pump and / or the rotation speed of the heat dissipation module fan is positively correlated with the average value or weighted average value of the heat dissipation requirement information of the multiple load units; wherein the diversion ratio of the fluid distributor is consistent with or positively correlated with the ratio of the heat dissipation requirement information of the multiple load units.

[0023] In one embodiment of the present invention, the method for obtaining the heat dissipation requirement information of the plurality of load units includes: obtaining a heat dissipation control / driving output signal of the host computer as the heat dissipation requirement information of the load units.

[0024] In one embodiment of the present invention, the heat dissipation control / drive output signal of the host computer is a PWM signal.

[0025] In one embodiment of the present invention, the method for obtaining the heat dissipation requirement information of the plurality of load units includes: obtaining the heat dissipation requirement information of the plurality of load units by communicating with the host computer.

[0026] In one embodiment of the present invention, the control module controls / drives the operation of the fluid distributor, the fluid pump and / or the heat dissipation module fan according to the heat dissipation requirement information of the multiple load units, including: obtaining the first heat dissipation requirement information of the first load unit and the second heat dissipation requirement information of the second load unit to generate a total heat dissipation requirement; generating the distribution ratio of the fluid distributor and the heat dissipation module fan PWM according to the total heat dissipation requirement; generating the fluid pump PWM according to the heat dissipation module fan PWM; and controlling / driving the fluid distributor, the fluid pump and / or the heat dissipation module fan according to the respective ratios of the fluid distributor, the heat dissipation module fan PWM and the fluid pump PWM.

[0027] In one embodiment of the present invention, the operating status information of the fluid distributor, the fluid pump and / or the heat dissipation module fan includes the operating status information of the fluid distributor, the fluid pump and / or the heat dissipation module fan acquired in real time; or includes descriptive information for controlling / driving the fluid distributor, the fluid pump and / or the heat dissipation module fan.

[0028] In a fourth aspect, the present invention provides a chassis that adopts the liquid cooling and heat dissipation system for multiple heat sources as described above or the control device for the liquid cooling and heat dissipation system for multiple heat sources as described above, or adopts the control method for the liquid cooling and heat dissipation system for multiple heat sources as described above.

[0029] In a fifth aspect, the present invention provides an electronic device using the chassis as described above.

[0030] Compared with the prior art, the liquid cooling and heat dissipation system, control method and control device for multiple heat sources according to the present invention have the following beneficial effects:

[0031] 1. Use high-performance water pumps and cooling modules to break the bottleneck of traditional liquid cooling radiators and significantly improve the overall cooling capacity;

[0032] 2. By determining the control signal corresponding to the load in the preset database, the output of the water pump, fan, and fluid distributor is made more reasonable, thus achieving energy-saving effects;

[0033] 3. By rationally configuring heat dissipation resources, the system noise can be reduced while meeting the heat dissipation needs of multiple heat sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic structural diagram of a liquid cooling and heat dissipation system for multiple heat sources in a first embodiment of the present invention;

[0035] FIG2 is a schematic structural diagram of a control module for a liquid cooling and heat dissipation system with multiple heat sources in Embodiment 1 of the present invention;

[0036] 3 is a schematic flow chart of a control method for a liquid cooling and heat dissipation system with multiple heat sources according to a second embodiment of the present invention;

[0037] FIG4 is a schematic diagram of a curve showing the total heat dissipation demand and the fan PWM of the heat dissipation module in the second embodiment of the present invention;

[0038] FIG5 is a schematic structural diagram of a control device for a liquid cooling and heat dissipation system with multiple heat sources in a third embodiment of the present invention.

[0039] Explanation of the main figure marks: 1-fluid pump, 2-heat exchange module, 3-fluid distributor, 4-heat dissipation module, 5-control module, 6-host computer, 7-heat dissipation module fan, 8-control unit, 9-storage unit, 10-communication unit, 11-acquisition unit, 12-power supply unit, 13-chassis fan, 501-acquisition unit, 502-generation unit, 503-drive unit, 504-sending unit. DETAILED DESCRIPTION

[0040] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0041] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations such as "include" or "comprising", etc., will be understood to include the stated elements or components but not to exclude other elements or other components.

[0042] To facilitate understanding, the main implementation concepts of the embodiments of the present invention are first briefly described.

[0043] As we all know, high temperature is the enemy of integrated circuits. High temperature will not only cause unstable system operation and shorten the service life, but may even burn some components. The heat that causes high temperature does not come from outside the computer, but from inside the computer. The function of the radiator is to absorb this heat and ensure that the temperature of computer components is normal. There are many types of radiators. CPUs, graphics cards, motherboard chipsets, hard drives, chassis, power supplies, and even optical drives and memory all require radiators, and the most commonly used ones are CPU / GPU radiators. The heat dissipation methods can be subdivided into air-cooled radiators, heat pipe radiators, liquid-cooled radiators, semiconductor refrigeration radiators, compressor refrigeration radiators, etc.

[0044] Liquid cooling uses a pump to force liquid through circulation, removing heat from the radiator. Compared to air cooling, it offers advantages such as quietness, stable cooling, and reduced environmental dependence. The heat dissipation performance of a liquid-cooled radiator is proportional to the flow rate of the cooling liquid (water or other liquid), which in turn is related to the power of the cooling system's water pump. Water also has a large heat capacity, which gives liquid cooling systems excellent thermal load capacity—equivalent to five times that of air-cooled systems. This directly benefits the CPU / GPU temperature curve by making it very flat. For example, a system using an air-cooled radiator will experience a brief thermal spike when running a program with heavy CPU / GPU loads, or may even exceed the CPU / GPU warning temperature. However, a liquid-cooled system, due to its large heat capacity, experiences much smaller thermal fluctuations.

[0045] Having discovered the technical deficiencies described in the previous background art, the inventors sought to find a way to overcome the heat dissipation bottleneck of traditional liquid cooling radiators, significantly improving overall heat dissipation capacity while also being more energy-efficient and quieter. Based on this, the inventors creatively proposed a multi-heat-source liquid cooling system, control method, and control device utilizing an external water pump and a high-performance heat dissipation module.

[0046] In order to solve the problem existing in the prior art that the existing liquid cooling radiator, whether it is a split liquid cooling radiator or an integrated liquid cooling radiator, is aimed at a single load. When multiple loads have high heat dissipation requirements, each load needs to be configured with a liquid cooling radiator. In actual use, when the load power consumption is high, the system heat dissipation demand increases. Due to the limited heat dissipation capacity of the liquid cooling radiator, the CPU / GPU temperature may be too high and the frequency may drop. When the load power consumption is low, the system heat dissipation demand is reduced. Since the multiple liquid cooling radiators have no interactive relationship with each other, there is a technical problem that the water pump or the cooling fan continues to maintain a high-load working state, which is not friendly to reducing noise and saving heat dissipation resources. The inventor of the present invention has obtained a liquid cooling heat dissipation system, control method and control device for multiple heat sources of the present invention through creative work.

[0047] The liquid cooling heat dissipation system, control method and control device for multiple heat sources of the present invention are aimed at the liquid cooling heat dissipation system with multiple heat sources, and achieve a significant improvement in the total heat dissipation capacity, and intelligently allocate heat dissipation resources. On the premise of meeting the heat dissipation requirements of each load, it is more energy-efficient and noise-reducing, and improves the problems of limited heat dissipation capacity of liquid cooling radiators due to increased power consumption of multiple loads, excessive noise due to reduced power consumption and waste of heat dissipation resources.

[0048] Example 1

[0049] FIG1 is a schematic structural diagram of a liquid cooling and heat dissipation system for multiple heat sources in a first embodiment of the present invention. As shown in FIG1 , the first embodiment provides a liquid cooling and heat dissipation system for multiple heat sources, which is used to dissipate heat from multiple load units. The system includes: at least one fluid pump 1, multiple heat exchange modules 2, a fluid distributor 3, and a heat dissipation module 4. The fluid pump 1 is used to drive the flow of fluid. The multiple heat exchange modules 2 are used to respectively exchange heat with the heat sources of the multiple load units, and the multiple heat exchange modules 2 are respectively connected in parallel via fluid branches. The input end of the fluid distributor 3 is connected to one end of the fluid pump 1, and the output end of the fluid distributor 3 is connected to one end of the multiple fluid branches. The fluid distributor 3 is used to controllably distribute the fluid output by the fluid pump 1 to the multiple fluid branches. One end of the heat dissipation module 4 is connected to the other end of the multiple fluid branches, and the other end of the heat dissipation module 4 is connected to the other end of the fluid pump 1. The heat dissipation module 4 is used to dissipate heat from the fluid flowing through. The system also includes a fluid disposed in the system's pipelines.

[0050] Specifically, one end of the fluid pump 1 is connected to the input end of the fluid distributor 3, the output end of the fluid distributor 3 is respectively connected to one end of a plurality of fluid branches, the other ends of the plurality of fluid branches are connected to one end of at least one heat dissipation module 4 through a pipeline, and the other end of at least one heat dissipation module 4 is connected to the fluid pump 1, thereby forming a closed loop; a heat exchange module 2 is provided on each fluid branch, and the heat exchange module 2 is used to exchange heat with the heat source of the load unit, thereby taking out the heat of the load unit and converging it into the pipeline (a trunk line) to flow to the heat dissipation module 4, thereby dissipating the heat carried in the fluid; wherein, the water The pump can be an external water pump, which is the power source of the whole system. The water pump curve performance is excellent and can realize PWM acquisition and control; wherein, the flow resistance of the fluid distributor 3 is small, and the fluid distribution amount is adjusted by receiving the pulse signal. The minimum fluid distribution amount of a single channel is not less than 20%, and the maximum fluid distribution amount does not exceed 80%. The heat dissipation resource ratio of multiple loads can be deployed; the heat exchange module 2 adopts a copper bottom to absorb heat, fine fins for heat exchange, and extremely low flow resistance of the flow channel, which is used to absorb heat from the heat source and transport it to the heat dissipation module 4 for heat dissipation; wherein, the heat dissipation module 4 may include a heat dissipation module fan 7 and a cold row, and the heat dissipation module fan 7 can realize PWM acquisition and control The radiator has multiple fins, reasonable air ducts, and excellent performance. The heat-carrying cold liquid transported by the heat exchange module 2 is dissipated through the heat dissipation module 4. The number of the fluid pumps 1 is one or more, and can be arranged inside or outside the chassis. When the fluid pump 1 is located outside the chassis, it is installed in an external manner. When the number of the fluid pumps 1 is multiple, they can be connected in parallel or in series. The load unit can be a CPU or a GPU, etc., but the present invention is not limited to this. Any device that requires heat dissipation can be used. When a load unit is a CPU, the heat source temperature of the CPU can be divided into the package temperature (package) and core temperature (core), the heat exchange module 2 in this embodiment performs heat exchange on the heat source (heat source temperature), and the heat source can specifically be the package temperature or the core temperature. That is to say, the heat exchange module 2 in this embodiment can be used to perform heat exchange on the package temperature or the core temperature of the load unit (when it is a CPU); in addition, as another embodiment, the output end of the fluid distributor 3 is connected to one end of the fluid pump 1, and the input end is connected to one end of multiple fluid branches, that is, it can be set in reverse; the input end of the fluid distributor 3 can be one or more, and the output end can be one or more, and the specific number can be determined according to user needs.

[0051] Based on the above analysis, it can be seen that the heat sources of multiple load units can be dissipated simultaneously through the fluid pump 1, fluid distributor 3, heat exchange module 2 and heat dissipation module 4, thereby effectively improving the total heat dissipation capacity, having a good energy-saving effect, and while meeting the heat dissipation needs of multiple heat sources, the system noise is lower.

[0052] In this embodiment, the liquid cooling system for multiple heat sources further includes a control module 5, which is electrically connected to the fluid pump 1 and the fluid distributor 3, respectively, and is used to control or drive the fluid pump 1 and the fluid distributor 3 to operate in a controlled manner.

[0053] Specifically, as shown in Figure 2, the control module 5 includes a control unit 8, a storage unit 9, a communication unit 10, an acquisition unit 11 and a power supply unit 12; the communication unit 10 is used to receive the load temperature data sent by the host computer 6; the storage unit 9 is used to store the correspondence between the load information and the control signal, and the stored multi-load temperature-fluid pump 1, heat dissipation module fan 7, chassis fan 13, fluid distributor 3 PWM curve data 3; the control unit 8 is used to retrieve the stored multi-load temperature-fluid pump 1, heat dissipation module fan 7, chassis fan 13, fluid distributor 3 PWM curve data in the storage unit 9 according to the received load temperature information, match the corresponding fluid pump 1, heat dissipation module fan 7, fluid distributor 3 PWM according to the current temperature, and send a PWM signal to the heat dissipation module fan 7, fluid pump 1, chassis fan 13 and fluid distributor 3 for control; the acquisition unit 11 is used to collect the fluid pump 1, heat dissipation module fan 7, chassis fan 13 and fluid distributor 3 PWM, and feed it back to the host computer 6; the power supply unit 12 is used to power the host computer 6 SATA 15pin takes power to supply power to the fluid pump 1, the cooling module fan 7, the chassis fan 13 and the fluid distributor 3.

[0054] Based on the above analysis, the control module 5 includes a control unit 8, a storage unit 9, a communication unit 10, an acquisition unit 11 and a power supply unit 12. The control module 5 is electrically connected to the heat dissipation module fan 7, the fluid pump 1 and the fluid distributor 3 (through 4 pins) for powering, acquiring and controlling the PWM of the fluid pump 1, the heat dissipation module fan 7 and the chassis fan 13; and the fluid distributor 3 is equipped with a built-in controller, which is electrically connected to the control module 5 (through 4 wires) for powering and receiving external pulse signals; the control module 5 receives multiple load units sent by the host computer 6 through the communication unit 10. The control unit 8 performs data analysis and retrieves the corresponding relationship between the stored load information and the control signal in the storage unit 9, that is, the multi-load temperature-fluid pump 1, the heat dissipation module fan 7, and the chassis fan 13 curve data. The PWM of the corresponding fluid pump 1, the heat dissipation module fan 7 and the chassis fan 13 are matched according to the current load temperature to configure the current total heat dissipation resources, and the fluid distribution amount of the fluid distributor is adjusted according to the single load ratio to configure the heat dissipation resource ratio of each load unit, thereby improving the total heat dissipation capacity, having a good energy-saving effect, and while meeting the heat dissipation requirements of multiple heat sources, the system noise is lower.

[0055] The fluid distributor 3 may be a ratio regulating valve capable of adjusting the opening and closing sizes of a plurality of liquid flow outlets.

[0056] In this embodiment, the liquid cooling system for multiple heat sources also includes a cooling module fan 7 for providing cooling airflow to the cooling module 4; wherein, the cooling module fan 7 is electrically connected to the control module 5; wherein, the control module 5 is also used to control or drive the cooling module fan 7 to operate in a controlled manner.

[0057] Specifically, the heat dissipation module fan 7 is used to provide heat dissipation airflow to the multiple fins of the radiator, thereby accelerating the heat dissipation efficiency of the heat dissipation module 4, and the heat dissipation module fan 7 is electrically connected to the control module 5, and the control module 5 can control or drive the heat dissipation module fan 7 to operate in a controlled manner; wherein the controlled operation specifically means that the control module 5 can adaptively adjust the rotation speed of the heat dissipation module fan 7 by collecting and analyzing the heat dissipation requirements of the current load unit, so that the rotation speed of the heat dissipation module fan 7 matches the heat dissipation requirements.

[0058] Based on the above analysis, it can be seen that the heat dissipation efficiency of the heat dissipation module 4 can be further improved by adding the heat dissipation module fan 7, and the control module 5 can make appropriate adjustments to the speed of the heat dissipation module fan 7 according to the obtained heat dissipation requirements, thereby further improving the total heat dissipation capacity, with good energy-saving effects, and while meeting the heat dissipation requirements of multiple heat sources, the system noise is lower.

[0059] In addition, in the case of a box for accommodating electronic equipment to be cooled, a chassis fan 13 can be added inside the electronic equipment accommodating box to accelerate the removal of heat from the inside of the box to the outside of the box.

[0060] In this embodiment, the control module 5 includes an information acquisition interface, which is used to be electrically connected to the host computer 6 and is used to obtain the heat dissipation requirement information of the multiple load units.

[0061] Specifically, the information acquisition interface of the control module 5 is used to be electrically connected to the host computer 6 to obtain the heat dissipation requirement information of multiple load units; the host computer 6 can be a PC, but the present invention is not limited thereto.

[0062] Based on the above analysis, it can be seen that the control module 5 can obtain the heat dissipation requirement information of multiple load units through the host computer 6, thereby laying a foundation for subsequent control or driving of the heat dissipation module fan 7, fluid pump 1 and fluid distributor 3, thereby improving the overall heat dissipation capacity and meeting the heat dissipation needs of multiple heat sources.

[0063] In this embodiment, the information acquisition interface is used to be electrically connected to the cooling fan control / drive output interface of the host computer 6 , and the cooling control / drive output signal of the host computer 6 is a PWM signal.

[0064] Specifically, the information acquisition interface of the control module 5 is used to be electrically connected to the cooling fan control / drive output interface of the host computer 6, so as to control or drive the cooling module fan 7 and adjust the speed of the cooling module fan 7.

[0065] In this embodiment, the information acquisition interface is used to be electrically connected to the communication interface of the host computer 6 , and obtain the heat dissipation requirement information of the multiple load units by communicating with the host computer 6 .

[0066] Specifically, the information acquisition interface of the control module 5 is used to electrically connect to the communication interface of the host computer 6, so as to obtain the heat dissipation requirement information of each load unit and then adjust the speed of the heat dissipation module fan 7 according to the heat dissipation requirement information.

[0067] Based on the above analysis, it can be seen that the information acquisition interface of the control module 5 is electrically connected to different interfaces of the host computer 6, so that the speed of the cooling module fan 7 can be adjusted accordingly based on the cooling demand information, thereby improving the total cooling capacity and meeting the cooling needs of multiple heat sources.

[0068] In this embodiment, there are multiple heat dissipation modules 4, and the multiple heat dissipation modules 4, the fluid pump 1 and the fluid distributor 3 form a series main circuit, and the series main circuit and the multiple fluid branches connected in parallel form a closed loop.

[0069] Specifically, there are multiple heat dissipation modules 4, and the specific number can be set according to user needs. The multiple heat dissipation modules 4, the fluid pump 1 and the fluid distributor 3 form a series main circuit, and the series main circuit and the multiple fluid branches connected in parallel form a closed loop.

[0070] Based on the above analysis, it can be seen that in order to further improve the heat dissipation capacity, the number of heat dissipation modules 4 can be multiple, and multiple heat dissipation modules 4 simultaneously dissipate heat for the cold liquid flowing through, thereby further improving the total heat dissipation capacity, having a good energy-saving effect, and while meeting the heat dissipation needs of multiple heat sources, the system noise is lower.

[0071] In this embodiment, the number of heat dissipation modules 4 and the fluid pumps 1 are both multiple, a part of the heat dissipation modules 4 and a part of the fluid pumps 1 and the fluid distributor 3 form a series main circuit, the series main circuit and a part of the fluid branches connected in parallel form a closed loop, another part of the heat dissipation modules 4 and another part of the fluid pumps 1 and the fluid distributor 3 form another series main circuit, the other series main circuit and another part of the fluid branches connected in parallel form a closed loop.

[0072] Specifically, the number of heat dissipation modules 4 and fluid pumps 1 can be multiple, that is, they can be connected in series to form multiple main circuits, and each main circuit forms a closed loop with the fluid branches connected in parallel.

[0073] Based on the above analysis, it can be seen that since there are multiple main circuits and each main circuit is connected to a fluid branch, the overall heat dissipation capacity is further improved, and the ability to meet the heat dissipation needs of multiple heat sources at the same time is further improved.

[0074] In this embodiment, the minimum fluid distribution amount of the fluid distributor 3 corresponding to each of the fluid branches is not less than 20%, and the maximum fluid distribution amount does not exceed 80%; or the minimum fluid distribution amount of the fluid distributor 3 corresponding to each of the fluid branches is not less than 10%, and the maximum fluid distribution amount does not exceed 90%.

[0075] Specifically, the fluid distributor 3 can set different fluid distribution amounts for each fluid branch. According to the heat dissipation requirements of each heat source, the control module 5 can adjust the fluid distribution amount of the fluid distributor 3 for each fluid branch.

[0076] Based on the above analysis, it can be seen that the control module 5 can adjust the fluid distribution amount of the fluid branch where each heat source is located (achieved by adjusting the fluid distributor 3) according to the heat dissipation requirements of the heat source of each load unit, thereby further meeting the heat dissipation requirements of multiple heat sources while reducing energy consumption and reducing system noise, thereby improving the overall heat dissipation capacity.

[0077] Example 2

[0078] FIG3 is a flow chart of a control method for a liquid cooling and heat dissipation system with multiple heat sources according to a second embodiment of the present invention. As shown in FIG3 , the second embodiment provides a control method for a liquid cooling and heat dissipation system with multiple heat sources, which is applied to the control module 5 of the liquid cooling and heat dissipation system with multiple heat sources as described above. The control method includes:

[0079] Step S100: obtaining heat dissipation requirement information of the plurality of load units.

[0080] Specifically, the control module 5 is electrically connected to the host computer 6 , and the control module 5 obtains the heat dissipation requirement information of the multiple load units through the host computer 6 .

[0081] Step S200, generating a driving signal according to the heat dissipation requirement information of the plurality of load units;

[0082] Step S300 : controlling / driving the operation of the fluid distributor 3 , the fluid pump 1 and / or the heat dissipation module fan 7 according to the driving signal.

[0083] Specifically, the control module 5 is electrically connected to the fluid distributor 3, the fluid pump 1 and the heat dissipation module fan 7 respectively. The control module 5 controls / drives the operation of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 according to the heat dissipation requirement information of multiple load units.

[0084] The rotation speed of the fluid pump 1 and / or the rotation speed of the heat dissipation module fan 7 is positively correlated with the average value or weighted average value of the heat dissipation requirement information of the multiple load units;

[0085] The flow distribution ratio of the fluid distributor 3 is consistent with or positively correlated with the ratio of the heat dissipation requirement information of the multiple load units.

[0086] Based on the above analysis, it can be seen that the control module 5 obtains the heat dissipation requirements of multiple load units through the host computer 6. The control module 5 makes further corresponding adjustments to the heat dissipation module fan 7, fluid pump 1 and fluid distributor 3 according to the multiple heat dissipation requirements, thereby effectively improving the total heat dissipation capacity, with good energy-saving effects, and while meeting the heat dissipation requirements of multiple heat sources, the system noise is lower.

[0087] In this embodiment, the method for obtaining the heat dissipation requirement information of the plurality of load units includes: obtaining the heat dissipation control / driving output signal of the host computer 6 as the heat dissipation requirement information of the load units.

[0088] Specifically, the information acquisition interface of the control module 5 is used to electrically connect with the communication interface of the host computer 6, so as to obtain the heat dissipation requirement information of each load unit, and then adjust the heat dissipation module fan 7, fluid pump 1 and fluid distributor 3 according to the heat dissipation requirement information.

[0089] Based on the above analysis, it can be seen that the information acquisition interface of the control module 5 is electrically connected to different interfaces of the host computer 6, so that the cooling module fan 7, fluid pump 1 and fluid distributor 3 can be adjusted accordingly based on the cooling demand information, thereby improving the overall cooling capacity and meeting the cooling needs of multiple heat sources.

[0090] In this embodiment, the heat dissipation control / driving output signal of the host computer 6 is a PWM signal.

[0091] Specifically, the information acquisition interface of the control module 5 is used to be electrically connected to the cooling fan control / drive output interface of the host computer 6 , so as to obtain the PWM signal output by the cooling control / drive of the host computer 6 .

[0092] In this embodiment, the method for obtaining the heat dissipation requirement information of the multiple load units includes: obtaining the heat dissipation requirement information of the multiple load units by communicating with the host computer 6 .

[0093] Specifically, the control module 5 can obtain the heat dissipation requirements of multiple load units at the same time by communicating with the host computer 6, so that the heat dissipation module fan 7, fluid pump 1 and fluid distributor 3 can be adjusted accordingly according to the heat dissipation requirements of multiple load units, thereby effectively improving the overall heat dissipation capacity, achieving good energy-saving effects, and while meeting the heat dissipation requirements of multiple heat sources, the system noise is lower.

[0094] In this embodiment, the method for controlling / driving the operation of the fluid distributor 3, the fluid pump 1 and / or the cooling module fan 7 according to the heat dissipation requirement information of the multiple load units includes:

[0095] Acquire first heat dissipation requirement information of the first load unit and second heat dissipation requirement information of the second load unit to generate a total heat dissipation requirement;

[0096] Generate the distribution ratio of the fluid distributor 3 and the PWM of the heat dissipation module fan 7 according to the total heat dissipation demand;

[0097] Generate fluid pump 1 PWM according to the heat dissipation module fan 7 PWM;

[0098] According to the respective proportions of the fluid distributor 3 , the heat dissipation module fan 7 PWM and the fluid pump 1 PWM, the fluid distributor 3 , the fluid pump 1 and / or the heat dissipation module fan 7 are controlled / driven respectively.

[0099] Specifically, the heat dissipation demand information is the core temperature or package temperature of the collected heat source. In the heat dissipation system, the fluid pump 1 PWM and the fan PWM are used to meet the heat dissipation demand, and the fluid distributor 3 is used to distribute the proportion to multiple heat exchange modules 2. Taking a dual-heat source computer system consisting of a CPU and a GPU as an example, in order to unify the heat dissipation demand weights of the CPU and GPU, the CPU sets the weight coefficient k1, and collects the CPU core temperature or package temperature t1. The GPU sets the weight coefficient k2, and collects the GPU core temperature or package temperature t2. Then the total heat dissipation demand Z = k1 *t1+k2*t2; then the fluid distributor H1 of the heat exchange module 2 corresponding to the CPU is (k1*t1) / (k1*t1+k2*t2), and the fluid distributor H2 of the heat exchange module 2 corresponding to the GPU is (k2*t2) / (k1*t1+k2*t2). That is, the valve body distribution ratio is adjusted according to the ratio, thereby controlling the heat dissipation resources between different heat exchange modules 2 and reasonably realizing the distribution of the cold liquid inside the cold liquid cycle under multiple heat sources; by matching, the total heat dissipation demand Z is obtained - the PWM curve of the heat dissipation module fan F (as shown in Figure 4), which can be specifically a piecewise function:

[0100] Where F is the cooling module fan 7 PWM, Z is the total cooling demand, P is the fluid pump 1 PWM, N1, N2, M1 and M2 are constants;

[0101] Using the known F to determine the PWM of fluid pump 1, we obtain: P = k3 * F (k3 is a coefficient, specifically a constant or a relationship). Using the known F to determine the PWM of chassis fan 13 FAN2, we achieve distribution within the chassis cooling cycle. (In a cooling system + chassis system, with chassis fan 13 independent of cooling module fan 7, FAN2 is chassis fan 13 PWM.) Thus: FAN2 = k4 * F (k4 is a coefficient, specifically a constant or a relationship). To summarize, first calculate the total cooling demand within the cooling system; then calculate the PWM of cooling module fan 7 (using the ZF correspondence diagram). Then, the obtained cooling module fan 7 PWM is used to further fit the PWM of the fluid pump 1 and the chassis fan 13FAN2, so as to realize the cooling optimization within the system and the cooling optimization of the box circulation, and improve the overall cooling effect; the multiple heat exchange modules 2 under the fluid distributor 3 control the cold liquid flow, and provide a suitable proportion of flow to the heat exchange end according to the proportion of the single heat source demand in the total cooling demand; the curve in Figure 4 is obtained through actual testing, and the energy saving and noise reduction effect is achieved while meeting the performance requirements. After the total cooling demand is collected, F is calculated accordingly, and P and FAN2 can be obtained through F; in the ZF corresponding relationship diagram, F1 can be 20% or 30% under normal conditions; among them, Z1=30℃, Z2=70℃, and Z3=100℃.

[0102] For another example, taking a dual-heat-source computer system consisting of a CPU and a GPU as an example, the CPU fan output signal duty cycle A and the GPU fan output signal duty cycle B output by the computer motherboard are collected, then the total heat dissipation demand Z = αA + (1-α) B, where α is a coefficient, and P = βA / B, where P is the fluid pump 1PWM and β is a coefficient.

[0103] In this embodiment, the control method for the liquid cooling system with multiple heat sources further includes: sending the operating status information of the fluid distributor 3 , the fluid pump 1 and / or the cooling module fan 7 to the host computer 6 .

[0104] Specifically, the control module 5 sends the operating status information of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 to the host computer 6, so that the user can view the operating status of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 in real time through the host computer 6, and can make adaptive adjustments through the control module 5 as needed.

[0105] In this embodiment, the operating status information of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 includes the operating status information of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 acquired in real time; or includes descriptive information for controlling / driving the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7.

[0106] Specifically, the control module 5 will obtain the operating status information of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 in real time, or send the descriptive information of controlling / driving the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 to the host computer 6, which the user can view in real time and can make adaptive adjustments through the control module 5 as needed.

[0107] Based on the above analysis, the user can view the operating status of the fluid dispenser 3, fluid pump 1 and / or heat dissipation module fan 7 in real time, and can make adaptive adjustments through the control module 5, thereby increasing user interactivity and can be personalized according to user needs.

[0108] Example 3

[0109] Figure 5 is a schematic diagram of the structure of a control device for a liquid cooling and heat dissipation system with multiple heat sources according to a third embodiment of the present invention. As shown in Figure 5, the third embodiment provides a control device for a liquid cooling and heat dissipation system with multiple heat sources, which is applied to the control method for a liquid cooling and heat dissipation system with multiple heat sources as described above. The control device includes: an acquisition unit 501, a generation unit 502, and a drive unit 503.

[0110] The acquisition unit 501 is used by the control module 5 to acquire the heat dissipation requirement information of the multiple load units.

[0111] Specifically, the control module 5 is electrically connected to the host computer 6 , and the acquisition unit 501 is used for the control module 5 to acquire the heat dissipation requirement information of the plurality of load units through the host computer 6 .

[0112] The generating unit 502 is used for the control module 5 to generate a driving signal according to the heat dissipation requirement information of the multiple load units;

[0113] The driving unit 503 is used by the control module 5 to control / drive the operation of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 according to the driving signal.

[0114] Specifically, the control module 5 is electrically connected to the fluid distributor 3, the fluid pump 1 and the heat dissipation module fan 7 respectively, the generation unit 502 is used for the control module 5 to generate a driving signal according to the heat dissipation requirement information of the multiple load units, and the driving unit 503 is used for the control module 5 to control / drive the operation of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 according to the driving signal.

[0115] The rotation speed of the fluid pump 1 and / or the rotation speed of the heat dissipation module fan 7 is positively correlated with the average value or weighted average value of the heat dissipation requirement information of the multiple load units;

[0116] The flow distribution ratio of the fluid distributor 3 is consistent with or positively correlated with the ratio of the heat dissipation requirement information of the multiple load units.

[0117] Based on the above analysis, it can be seen that the control module 5 obtains the heat dissipation requirements of multiple load units through the host computer 6. The control module 5 makes further corresponding adjustments to the heat dissipation module fan 7, fluid pump 1 and fluid distributor 3 according to the multiple heat dissipation requirements, thereby effectively improving the total heat dissipation capacity, with good energy-saving effects, and while meeting the heat dissipation requirements of multiple heat sources, the system noise is lower.

[0118] In this embodiment, the method for obtaining the heat dissipation requirement information of the plurality of load units includes: obtaining the heat dissipation control / driving output signal of the host computer 6 as the heat dissipation requirement information of the load units.

[0119] Specifically, the information acquisition interface of the control module 5 is used to electrically connect with the communication interface of the host computer 6, so as to obtain the heat dissipation requirement information of each load unit, and then adjust the heat dissipation module fan 7, fluid pump 1 and fluid distributor 3 according to the heat dissipation requirement information.

[0120] Based on the above analysis, it can be seen that the information acquisition interface of the control module 5 is electrically connected to different interfaces of the host computer 6, so that the cooling module fan 7, fluid pump 1 and fluid distributor 3 can be adjusted accordingly based on the cooling demand information, thereby improving the overall cooling capacity and meeting the cooling needs of multiple heat sources.

[0121] In this embodiment, the heat dissipation control / driving output signal of the host computer 6 is a PWM signal.

[0122] Specifically, the information acquisition interface of the control module 5 is used to be electrically connected to the cooling fan control / drive output interface of the host computer 6 , so as to obtain the PWM signal output by the cooling control / drive of the host computer 6 .

[0123] In this embodiment, the method for obtaining the heat dissipation requirement information of the multiple load units includes: obtaining the heat dissipation requirement information of the multiple load units by communicating with the host computer 6 .

[0124] Specifically, the control module 5 can obtain the heat dissipation requirements of multiple load units at the same time by communicating with the host computer 6, so that the heat dissipation module fan 7, fluid pump 1 and fluid distributor 3 can be adjusted accordingly according to the heat dissipation requirements of multiple load units, thereby effectively improving the overall heat dissipation capacity, achieving good energy-saving effects, and while meeting the heat dissipation requirements of multiple heat sources, the system noise is lower.

[0125] In this embodiment, the control module controls / drives the operation of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 according to the heat dissipation requirement information of the multiple load units, including:

[0126] Acquire first heat dissipation requirement information of the first load unit and second heat dissipation requirement information of the second load unit to generate a total heat dissipation requirement;

[0127] Generate the distribution ratio of the fluid distributor 3 and the PWM of the heat dissipation module fan 7 according to the total heat dissipation demand;

[0128] Generate fluid pump 1 PWM according to the heat dissipation module fan 7 PWM;

[0129] According to the respective proportions of the fluid distributor 3 , the heat dissipation module fan 7 PWM and the fluid pump 1 PWM, the fluid distributor 3 , the fluid pump 1 and / or the heat dissipation module fan 7 are controlled / driven respectively.

[0130] Specifically, the heat dissipation demand information is the ratio of the core temperature or package temperature of the collected heat source in the heat dissipation system where the fluid pump 1 PWM and the fan PWM meet the heat dissipation demand, and the fluid distributor 3 is used to distribute to multiple heat exchange modules 2; taking the CPU and GPU as an example, in order to unify the heat dissipation requirements of the CPU and GPU, the CPU sets the weight coefficient k1, collects the CPU core temperature or package temperature t1, and the GPU sets the weight coefficient k2, collects the GPU core temperature or package temperature t2; then the total heat dissipation demand Z = k1*t1+k2*t2 ; For the fluid distributor of the heat exchange module 2 corresponding to the CPU, H1 = (k1*t1) / (k1*t1+k2*t2), and for the fluid distributor of the heat exchange module 2 corresponding to the GPU, H2 = (k2*t2) / (k1*t1+k2*t2). That is, the valve body distribution ratio is adjusted according to the ratio, thereby controlling the heat dissipation resources between different heat exchange modules 2 and reasonably realizing the distribution of the cold liquid inside the cold liquid cycle under multiple heat sources. By matching, we can obtain: total heat dissipation demand Z - PWM curve of the heat dissipation module fan F (as shown in Figure 4), which can be specifically a piecewise function:

[0131] Where F is the cooling module fan 7 PWM, Z is the total cooling demand, P is the fluid pump 1 PWM, N1, N2, M1 and M2 are constants;

[0132] Relying on the known F to obtain the PWM of the fluid pump 1, then: P = k3*F (k3 is a coefficient, which can be specifically a constant or a relationship); relying on the known F to obtain the PWM of the chassis fan 13FAN2, to achieve distribution in the chassis heat dissipation cycle, (in the system of heat dissipation system + chassis, there is a chassis fan 13 independent of the heat dissipation module fan 7, FAN2 is the chassis case fan PWM) then: FAN2 = k4*F, (k4 is a coefficient, which can be specifically a constant or a relationship).

[0133] To summarize, the total heat dissipation demand is first calculated within the cooling system; the PWM of the cooling module fan 7 is calculated (using the ZF correspondence diagram). The obtained PWM of the cooling module fan 7 is then used to further fit the PWM of the fluid pump 1 and the chassis fan 13FAN2 (P, F2, and F are unified together), achieving heat dissipation optimization within the system and the cooling optimization of the chassis circulation, thereby improving the overall heat dissipation effect. The fluid distributor 3 controls the flow of cold liquid to multiple heat exchange modules 2, providing a suitable proportion of flow to the heat exchange end based on the proportion of the individual heat source demand in the total heat dissipation demand. The curve in Figure 4 was obtained through actual testing, achieving energy saving and noise reduction while meeting performance requirements. After collecting the total heat dissipation demand, F is calculated accordingly, and P and FAN2 can be calculated based on F. Under normal conditions, F1 can be 20% or 30%. Wherein, Z1 = 30°C, Z2 = 70°C, and Z3 = 100°C.

[0134] In this embodiment, the control device for the liquid cooling system with multiple heat sources also includes a sending unit 504 for sending the operating status information of the fluid distributor 3, the fluid pump 1 and / or the cooling module fan 7 to the host computer 6.

[0135] Specifically, the control module 5 sends the operating status information of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 to the host computer 6, so that the user can view the operating status of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 in real time through the host computer 6, and can make adaptive adjustments through the control module 5 as needed.

[0136] In this embodiment, the operating status information of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 includes the operating status information of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 acquired in real time; or includes descriptive information for controlling / driving the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7.

[0137] Specifically, the control module 5 will obtain the operating status information of the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 in real time, or send the descriptive information of controlling / driving the fluid distributor 3, the fluid pump 1 and / or the heat dissipation module fan 7 to the host computer 6, which the user can view in real time and can make adaptive adjustments through the control module 5 as needed.

[0138] Based on the above analysis, the user can view the operating status of the fluid dispenser 3, fluid pump 1 and / or heat dissipation module fan 7 in real time, and can make adaptive adjustments through the control module 5, thereby increasing user interactivity and can be personalized according to user needs.

[0139] Example 4

[0140] Embodiment 4 provides a chassis that adopts the liquid cooling and heat dissipation system for multiple heat sources as described above, or the control device for the liquid cooling and heat dissipation system for multiple heat sources as described above, or the control method for the liquid cooling and heat dissipation system for multiple heat sources as described above.

[0141] Example 5

[0142] Embodiment 5 provides an electronic device, which uses the chassis described above.

[0143] In summary, the liquid cooling and heat dissipation system, control method, and control device for multiple heat sources of the present invention have the following beneficial effects:

[0144] 1. Use high-performance water pumps and cooling modules to break the bottleneck of traditional liquid cooling radiators and significantly improve the overall cooling capacity;

[0145] 2. By determining the control signal corresponding to the load in the preset database, the output of the water pump, fan, and fluid distributor is made more reasonable, thus achieving energy-saving effects;

[0146] 3. By rationally configuring heat dissipation resources, the system noise can be reduced while meeting the heat dissipation needs of multiple heat sources.

[0147] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A liquid cooling system for multiple heat sources, used for cooling multiple load units, characterized in that: The system comprises: at least one fluid pump for driving fluid flow; A plurality of heat exchange modules, used to respectively perform heat exchange with the heat sources of the plurality of load units, the plurality of heat exchange modules being respectively connected in parallel through fluid branches; a fluid distributor, whose input end is connected to one end of the fluid pump, whose output end is connected to one end of the plurality of fluid branches, and the fluid distributor is used to controllably distribute the fluid output by the fluid pump to the plurality of fluid branches; and A heat dissipation module, one end of which is connected to the other end of the multiple fluid branches, and the other end of the heat dissipation module is connected to the other end of the fluid pump, and the heat dissipation module is used to dissipate heat for the fluid flowing through.

2. The liquid cooling and heat dissipation system for multiple heat sources according to claim 1, characterized in that: It also includes a control module, which is electrically connected to the fluid pump and the fluid dispenser respectively, and is used to control or drive the fluid pump and the fluid dispenser to operate in a controlled manner.

3. The liquid cooling and heat dissipation system for multiple heat sources according to claim 2, characterized in that: Also included is a heat dissipation module fan, which is used to provide heat dissipation airflow to the heat dissipation module; Wherein, the heat dissipation module fan is electrically connected to the control module; Wherein, the control module is also used to control or drive the fan of the heat dissipation module to operate in a controlled manner.

4. The liquid cooling and heat dissipation system for multiple heat sources according to claim 2, characterized in that: The control module comprises an information acquisition interface, and the information acquisition interface is used to be electrically connected to a host computer and to acquire the heat dissipation requirement information of the multiple load units.

5. The liquid cooling and heat dissipation system for multiple heat sources according to claim 4, characterized in that: The information acquisition interface is used to be electrically connected to the cooling fan control / drive output interface of the host computer, and the cooling control / drive output signal of the host computer is a PWM signal.

6. The liquid cooling and heat dissipation system for multiple heat sources according to claim 4, characterized in that: The information acquisition interface is used to be electrically connected to the communication interface of the host computer, and to obtain the heat dissipation requirement information of the multiple load units by communicating with the host computer.

7. The liquid cooling and heat dissipation system for multiple heat sources according to claim 1, characterized in that: There are multiple heat dissipation modules, and the multiple heat dissipation modules, the fluid pump and the fluid distributor form a series main circuit, and the series main circuit and the multiple fluid branches connected in parallel form a closed loop.

8. The liquid cooling and heat dissipation system for multiple heat sources according to claim 1, characterized in that: There are multiple numbers of the heat dissipation modules and the fluid pumps. A part of the heat dissipation modules, a part of the fluid pumps and the fluid distributors form a series main circuit, and the series main circuit and a part of the fluid branches connected in parallel form a closed loop. Another part of the heat dissipation modules, another part of the fluid pumps and the fluid distributors form another series main circuit, and the other series main circuit and another part of the fluid branches connected in parallel form a closed loop.

9. The liquid cooling and heat dissipation system for multiple heat sources according to claim 1, characterized in that: The minimum fluid distribution amount of the fluid distributor corresponding to each fluid branch is not less than 10%, and the maximum fluid distribution amount does not exceed 90%.

10. A control method for a liquid cooling and heat dissipation system with multiple heat sources, applied to the control module of the liquid cooling and heat dissipation system with multiple heat sources as claimed in any one of claims 1 to 9, characterized in that: The control method comprises: Acquiring heat dissipation requirement information of the multiple load units; generating a driving signal according to the heat dissipation requirement information of the plurality of load units; Controlling / driving the operation of the fluid distributor, the fluid pump and / or the cooling module fan according to the driving signal; Wherein, the rotation speed of the fluid pump and / or the rotation speed of the fan of the heat dissipation module is positively correlated with the average value or weighted average value of the heat dissipation demand information of the multiple load units; The flow distribution ratio of the fluid distributor is consistent with or positively correlated with the ratio of the heat dissipation requirement information of the multiple load units.

11. The control method for a liquid cooling system with multiple heat sources according to claim 10, characterized in that: The method for obtaining the heat dissipation requirement information of the plurality of load units comprises: Obtain the heat dissipation control / drive output signal of the host computer as the heat dissipation requirement of the load unit Ask for information, or The heat dissipation requirement information of the multiple load units is obtained by communicating with the host computer.

12. The control method for a liquid cooling and heat dissipation system with multiple heat sources according to claim 11, characterized in that: The heat dissipation control / driving output signal of the host computer is a PWM signal.

13. The control method for a liquid cooling and heat dissipation system with multiple heat sources according to claim 10, characterized in that: The method for controlling / driving the operation of the fluid distributor, the fluid pump and / or the cooling module fan according to the heat dissipation requirement information of the multiple load units includes: Acquire first heat dissipation requirement information of the first load unit and second heat dissipation requirement information of the second load unit to generate a total heat dissipation requirement; According to the total heat dissipation demand, generating a distribution ratio of the fluid distributor and a heat dissipation module fan PWM; Generate a fluid pump PWM according to the heat dissipation module fan PWM; The fluid distributor, the fluid pump and / or the heat dissipation module fan are controlled / driven respectively according to the respective proportions of the fluid distributor, the heat dissipation module fan PWM and the fluid pump PWM.

14. The control method for a liquid cooling and heat dissipation system with multiple heat sources according to claim 10, characterized in that: Also includes: The operating status information of the fluid distributor, the fluid pump and / or the heat dissipation module fan is sent to the host computer.

15. The control method for a liquid cooling system with multiple heat sources according to claim 14, characterized in that: The operating status information of the fluid distributor, the fluid pump and / or the heat dissipation module fan includes the operating status information of the fluid distributor, the fluid pump and / or the heat dissipation module fan acquired in real time; or Includes descriptive information for controlling / driving the fluid distributor, the fluid pump and / or the heat dissipation module fan.

16. A control device for a liquid cooling and heat dissipation system with multiple heat sources, applied to a control method for a liquid cooling and heat dissipation system with multiple heat sources as claimed in any one of claims 10 to 15, characterized in that: The control device comprises: An acquisition unit, used for the control module to acquire the heat dissipation requirement information of the multiple load units; A generating unit, configured for the control module to generate heat dissipation demand information of the plurality of load units according to the heat dissipation demand information of the plurality of load units. A driving signal; A driving unit, used for the control module to control / drive the operation of the fluid distributor, the fluid pump and / or the heat dissipation module fan according to the driving signal; Wherein, the rotation speed of the fluid pump and / or the rotation speed of the fan of the heat dissipation module is positively correlated with the average value or weighted average value of the heat dissipation demand information of the multiple load units; The flow distribution ratio of the fluid distributor is consistent with or positively correlated with the ratio of the heat dissipation requirement information of the multiple load units.

17. The control device for a liquid cooling system with multiple heat sources according to claim 16, characterized in that: The method for obtaining the heat dissipation requirement information of the plurality of load units comprises: Obtaining the heat dissipation control / driving output signal of the host computer as the heat dissipation requirement information of the load unit, or, The heat dissipation requirement information of the multiple load units is obtained by communicating with the host computer.

18. The control device for a liquid cooling system with multiple heat sources according to claim 17, characterized in that: The heat dissipation control / driving output signal of the host computer is a PWM signal.

19. A chassis, characterized in that: A liquid cooling and heat dissipation system for multiple heat sources as described in any one of claims 1 to 9 or a control device for a liquid cooling and heat dissipation system for multiple heat sources as described in claims 16 to 18, or a control method for a liquid cooling and heat dissipation system for multiple heat sources as described in claims 10 to 15 is adopted.

20. An electronic device, characterized in that: A chassis as claimed in claim 19 is used.

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