Liquid cooling flow regulation method, device and storage medium
Patent Information
- Application Number
- CN202510895970.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2045-06-30
AI Technical Summary
The flow control of existing liquid cooling systems relies on unified regulation, resulting in insufficient flexibility and precision, and an inability to promptly respond to cooling requirements under different power consumption and heating conditions.
By installing a liquid cooling flow regulating device at each heat dissipation node, using the air cooling heat dissipation interface to receive the regulating signal, the cooling medium flow is dynamically adjusted, independent of the unified regulation of the coolant distribution unit, and a distributed liquid cooling regulation method is adopted.
It improves the flexibility and accuracy of cooling medium flow regulation, reduces resource consumption, simplifies system integration and maintenance, and enhances heat dissipation efficiency and response speed.
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Figure CN120406698B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of heat dissipation of electronic equipment, and in particular to a liquid cooling flow regulation method, device and storage medium. Background Art
[0002] In recent years, with the growing demand for computing power in data centers and the increasing power density of electronic equipment such as servers, traditional air cooling technology has encountered a heat dissipation bottleneck. Liquid cooling technology, with its higher heat dissipation capacity and lower noise, has gradually become mainstream. However, the flow control of liquid cooling systems in related technologies relies on the unified and overall regulation of the coolant distribution unit, which cannot provide timely and precise adjustments to the heat dissipation requirements under different power consumption and heat generation conditions.
[0003] It can be seen that the liquid cooling flow regulation method in the related art has the problem of insufficient flexibility and accuracy due to reliance on unified control. Summary of the Invention
[0004] The present application provides a liquid cooling flow regulation method, device and storage medium, to address the problem that the liquid cooling flow regulation method in at least the related art has insufficient flexibility and accuracy due to reliance on unified control.
[0005] The present application provides a liquid cooling flow regulation method, including: receiving a first regulation signal via an air-cooled heat dissipation interface through a control component of a liquid cooling flow regulation device, wherein the air-cooled heat dissipation interface is an interface on an electronic device for connecting an air-cooled heat dissipation device; when the first regulation signal is a regulation signal obtained by adjusting the regulation signal of the air-cooled heat dissipation device and is used to regulate the flow of the cooling medium of the heat dissipation branch corresponding to the liquid cooling flow regulation device, the first regulation signal is sent to the actuator of the liquid cooling flow regulation device through the control component to control the flow of the cooling medium of the heat dissipation branch corresponding to the liquid cooling flow regulation device.
[0006] The present application also provides a liquid-cooling flow regulating device, comprising: a control component and an actuator; wherein the control component is used to receive a first regulating signal via an air-cooling heat dissipation interface, wherein the air-cooling heat dissipation interface is an interface on an electronic device for connecting an air-cooling heat dissipation device; when the first regulating signal is a regulating signal obtained by adjusting the regulating signal of the air-cooling heat dissipation device and is used to regulate the flow of the cooling medium of the heat dissipation branch corresponding to the liquid-cooling flow regulating device, the first regulating signal is sent to the actuator; the actuator is used to control the flow of the cooling medium of the heat dissipation branch corresponding to the liquid-cooling flow regulating device in response to the first regulating signal.
[0007] The present application also provides an electronic device, comprising: a memory for storing a computer program; and a processor for implementing the steps of any of the above-mentioned liquid cooling flow regulation methods when executing the computer program.
[0008] The present application also provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned liquid cooling flow regulation methods are implemented.
[0009] The present application also provides a computer program product, including a computer program, which implements the steps of any of the above-mentioned liquid cooling flow regulation methods when executed by a processor.
[0010] Through the present application, since the control component of the liquid-cooled flow regulating device receives the first adjustment signal via the air-cooled heat dissipation interface, wherein the air-cooled heat dissipation interface is an interface on the electronic device for connecting the air-cooled heat dissipation device, the liquid-cooled flow regulating device can be directly connected to the original air-cooled heat dissipation device interface to realize distributed liquid cooling regulation and reduce the modification cost and resource consumption; when the first adjustment signal is an adjustment signal obtained by adjusting the adjustment signal of the air-cooled heat dissipation device and is used to adjust the flow of the cooling medium of the heat dissipation branch corresponding to the liquid-cooled flow regulating device, the first adjustment signal is sent to the actuator of the liquid-cooled flow regulating device through the control component to control the cooling medium flow of the heat dissipation branch corresponding to the liquid-cooled flow regulating device. Therefore, different signals can be used to adjust the cooling medium flow for different heat dissipation branches for targeted dynamic adjustment, without relying on the unified control of the coolant distribution unit, thereby solving the problem of insufficient flexibility and accuracy of the liquid-cooled flow regulation method in the related art due to reliance on unified control, improving the flexibility and accuracy of the cooling medium flow regulation, and reducing resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0012] Figure 1 A flow chart of a liquid cooling flow regulation method provided in an embodiment of the present application.
[0013] Figure 2 A schematic diagram of a liquid cooling flow regulation method provided in an embodiment of the present application.
[0014] Figure 3 A schematic diagram of another liquid cooling flow regulation method provided in an embodiment of the present application.
[0015] Figure 4 A schematic diagram of another liquid cooling flow regulation method provided in an embodiment of the present application.
[0016] Figure 5 A schematic diagram of another liquid cooling flow regulation method provided in an embodiment of the present application.
[0017] Figure 6 A schematic diagram of another liquid cooling flow regulation method provided in an embodiment of the present application.
[0018] Figure 7 A flow chart of another liquid cooling flow regulation method provided in an embodiment of the present application.
[0019] Figure 8 A schematic diagram of another liquid cooling flow regulation method provided in an embodiment of the present application.
[0020] Figure 9 A schematic diagram of another liquid cooling flow regulation method provided in an embodiment of the present application.
[0021] Figure 10 A schematic structural diagram of a liquid cooling flow regulating device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0022] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0023] It should be noted that, in the description of this application, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. The terms "first," "second," etc., in this application are used to distinguish similar objects, and are not used to describe a particular order or sequence.
[0024] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0025] According to one aspect of an embodiment of the present application, a liquid cooling flow rate regulation method is provided. Figure 1 FIG. 1 is a flow chart of an optional liquid cooling flow rate regulation method according to an embodiment of the present application, such as Figure 1As shown, the process of this method includes the following steps:
[0026] Step S102: receiving a first adjustment signal via an air-cooling heat dissipation interface by a control component of the liquid-cooling flow regulating device, wherein the air-cooling heat dissipation interface is an interface on an electronic device for connecting to an air-cooling heat dissipation device;
[0027] In step S104, when the first adjustment signal is an adjustment signal obtained by adjusting the adjustment signal of the air-cooled heat dissipation device and is used to adjust the flow of the cooling medium in the heat dissipation branch corresponding to the liquid-cooled flow adjustment device, the first adjustment signal is sent to the actuator of the liquid-cooled flow adjustment device through the control component to control the flow of the cooling medium in the heat dissipation branch corresponding to the liquid-cooled flow adjustment device.
[0028] The liquid cooling flow rate regulation method in this embodiment can be applied to the technical field of heat dissipation of electronic equipment, and can be applied to the scenario of liquid cooling of electronic equipment.
[0029] In recent years, with the development of cloud computing, artificial intelligence (AI), and big data, data centers have an increasing demand for computing power. In addition, the power density of information technology (IT) equipment such as servers has gradually increased. Conventional air cooling technology has encountered a heat dissipation bottleneck and cannot meet the heat dissipation needs of electronic equipment. Liquid cooling technology has gradually become mainstream with its higher heat dissipation capacity and lower noise.
[0030] Liquid cooling is divided into cold plate liquid cooling, immersion liquid cooling and spray liquid cooling. Among them, cold plate liquid cooling is suitable for dissipating heat of key components such as the Central Processing Unit (CPU) and Graphics Processing Unit (GPU). Immersion liquid cooling involves directly immersing the entire server or key components in a special coolant (such as a fluorinated liquid) to dissipate heat. This method can handle very high heat densities and is suitable for cooling needs in extreme conditions or hyperscale data centers. However, immersion liquid cooling requires specially designed servers and sealed immersion containers, increasing equipment cost and complexity, making it unsuitable for general electronic equipment. Spray liquid cooling involves spraying coolant onto the surface of heat-generating components. This method can quickly respond to temperature changes in these components and provide immediate cooling. However, the design and maintenance of spray systems are complex, requiring assurance that the coolant does not come into contact with electronic components. Furthermore, the system requires excellent sealing and circulation capabilities, making it unsuitable for general electronic equipment. Cold plate liquid cooling involves mounting a cold plate directly on the heat-generating component, eliminating the need for additional heat dissipation space and easily integrating with existing IT equipment. It can be installed in most standard server chassis and connected to the heat-generating component on the motherboard. The close contact between the cold plate and the heat-generating component allows for direct and efficient heat transfer, reducing thermal resistance and improving the stability and reliability of the overall cooling system.
[0031] In addition, cold plate liquid cooling devices are relatively simple to maintain, usually requiring only replacement or maintenance of the cold plate and coolant. The cold plate liquid cooling device generates very little noise during operation because the main cooling process occurs inside the closed cold plate, avoiding the noise problem caused by direct heat dissipation and being more energy-efficient and efficient.
[0032] However, if Figure 2 As shown, the core component of a liquid cooling system in related art is generally the coolant distribution unit (CDU). The CDU primarily consists of a water pump, a heat exchanger, a filtration system, and control equipment to perform these functions. The CDU's water pump drives the coolant along pipes through the heat exchanger (such as a heat sink cold plate), thereby removing heat transferred from the heat-generating components (such as the processor) in the water-cooled server to the cold plate, thereby dissipating heat from the equipment. The heat exchanger transfers heat from the coolant (i.e., cooling water) to the external environment (such as an outdoor cooling tower or chiller). After passing through the heat-generating components, the cooling water is heated (for example, from 45°C to 55°C) and then replaced with cold source water by the heat exchanger, achieving heat transfer. The CDU may also include a filtration system to maintain the coolant's purity, while the control equipment manages the operation of the entire system. The CDU circulates the coolant by applying a uniform pressure to the coolant main pipe. The flow grooves inside the cold plate are designed to control the flow of coolant to specific heat-dissipating components.
[0033] The coolant main pipeline is not limited to the internal liquid cooling circuit of a single chassis. It can also serve as the backbone of the liquid cooling system in a data center, server cluster, or computer room. It distributes coolant from a central cooling unit (such as a cooling tower or chiller) to each IT device or chassis requiring cooling. It also recovers the hot coolant after absorbing heat from the IT equipment and transports it back to the central cooling unit for further cooling. Therefore, the coolant main pipeline can be considered a network connecting all components of the entire liquid cooling system, ensuring effective coolant circulation and efficient heat transfer. The CDU drives coolant circulation using a uniform pressure, but this approach cannot individually or precisely control the coolant flow to each cooling node. This means that if the power consumption of a cooling component in the system suddenly increases, the CDU cannot immediately respond and adjust the coolant flow near that component. Instead, it continues to circulate at the overall system design pressure. Furthermore, the flow guide grooves in the cold plate are static in design and cannot dynamically adjust their width or layout based on real-time cooling requirements. In scenarios where IT equipment loads fluctuate frequently, this may not respond quickly to changes in cooling demand, resulting in poor cooling performance. This relatively static flow control method can only uniformly adjust the flow through the CDU, and it does not respond promptly to the cooling needs of the same cooling device under different power consumption and heating conditions.
[0034] Furthermore, upgrading the heat dissipation method from air cooling to liquid cooling requires not only building a liquid cooling system consisting of a CDU, outdoor cooling equipment, and its connecting pipes, but also redesigning the equipment chassis and motherboard. This increases the overall hardware investment, makes it inconvenient to upgrade the heat dissipation of existing equipment, and hinders the reuse of resources.
[0035] It can be seen that the liquid cooling flow regulation method in the related art has the problem of insufficient flexibility and accuracy due to reliance on unified control.
[0036] In order to solve at least some of the above technical problems, this embodiment provides a distributed liquid cooling flow dynamic regulation method, including: receiving a first regulation signal through the control component of the liquid cooling flow regulation device via the air cooling heat dissipation interface, wherein the air cooling heat dissipation interface is an interface on the electronic device for connecting the air cooling heat dissipation device, and the liquid cooling flow regulation device can be directly connected to the original air cooling heat dissipation device interface to realize distributed liquid cooling regulation, reducing modification costs and resource consumption; when the first regulation signal is a regulation signal obtained by adjusting the regulation signal of the air cooling heat dissipation device and used to regulate the flow of the cooling medium of the heat dissipation branch corresponding to the liquid cooling flow regulation device, the first regulation signal is sent to the actuator of the liquid cooling flow regulation device through the control component to control the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulation device. Thus, different signals can be used to regulate the cooling medium flow for different heat dissipation branches for targeted dynamic regulation, without relying on the unified regulation of the coolant distribution unit. This solves the problem of insufficient flexibility and accuracy caused by reliance on unified regulation in the liquid cooling flow regulation method in the related art, improves the flexibility and accuracy of cooling medium flow regulation, and reduces resource consumption.
[0037] Optionally, a liquid cooling flow regulating device can be installed at each heat dissipation node (i.e., corresponding to each heat dissipation branch) to achieve local and dynamic regulation of the cooling medium flow. A heat dissipation branch can correspond to an electronic device or an electronic component (for example, a CPU, GPU, etc.). An electronic device can include one heat dissipation branch or multiple heat dissipation branches, which is not limited in this embodiment.
[0038] Optionally, each liquid cooling flow regulating device can be relatively independent, which facilitates the maintenance and upgrade of a single node without affecting the operation of the entire liquid cooling system.
[0039] By installing a dynamic adjustment device in each heat dissipation branch, the heat dissipation requirements of each electronic component or device can be responded to immediately, thereby improving the heat dissipation efficiency and response speed.
[0040] In this embodiment, the liquid-cooling flow regulating device can be directly connected to an air-cooling heat dissipation interface in an electronic device. The air-cooling heat dissipation interface here can be an interface on the electronic device for connecting to the air-cooling heat dissipation device, for example, it can be an interface on the electronic device for connecting to a fan. This can utilize the existing interfaces and installation space on the electronic device, reducing modification costs and simplifying the integration process of the liquid cooling system. For example, after removing the cooling fan, the liquid-cooling flow regulating device can be installed in the original fan position, and the corresponding heat dissipation device (such as a cold plate) can be connected to the liquid cooling system through the liquid-cooling flow regulating device. This distributed architecture eliminates the reliance on CDU control and pressurization functions, utilizes the existing heat dissipation control interface of the IT equipment, and simplifies the entire liquid cooling heat dissipation system.
[0041] Optionally, the distributed liquid cooling flow dynamic regulating device can obtain regulating signals of the working power supply and the electronic equipment from the air cooling heat dissipation interface.
[0042] Optionally, the first adjustment signal can be an adjustment signal obtained by adjusting the adjustment signal of the air-cooled heat sink, and used to adjust the flow of the cooling medium in the heat dissipation branch corresponding to the liquid-cooled flow adjustment device. That is, in the case of replacing the air-cooled heat sink with a liquid-cooled flow adjustment device, since the signal required by the liquid-cooled flow adjustment device to control the flow of the cooling medium is different from that of the air-cooled heat sink, the electronic device can be adjusted so that its output can be directly used to adjust the flow of the cooling medium in the heat dissipation branch corresponding to the liquid-cooled flow adjustment device.
[0043] Here, through the air cooling interface, the electronic device can output a pulse width modulation (PWM) signal to control the speed of the air cooling device. PWM signals are a signal format widely used in various fields, including communications, control, and power electronics. They encode information by varying the pulse duration (i.e., the duty cycle) at a fixed frequency, enabling efficient signal transmission and control between digital and analog circuits. During a complete cycle, a PWM signal can experience periods of high and low levels. By adjusting the ratio of the high-level duration to the total cycle duration (i.e., the duty cycle), the PWM signal can express different levels of voltage information. For example, if the high-level duration during a cycle is half the cycle duration, the signal's duty cycle is 50%, indicating that the average signal level is half the power supply voltage.
[0044] PWM signals can be used to control the speed of air-cooled heat dissipation devices. For example, through this interface, the device can output PWM signals to control the fan speed to meet different heat dissipation requirements. It can also be used to control the flow of cooling medium in the heat dissipation branch corresponding to the liquid-cooled flow control device. However, there are significant differences in the working mechanisms of the liquid-cooled flow control device and the air-cooled heat dissipation device. For example, the fan speed has a large range of variation, a wide range of duty cycle variation from stop to full speed, and a fast response speed, while the liquid-cooled pump speed has a smaller range of variation, and still needs to maintain sufficient flow at low speed, which requires more precise duty cycle control of the PWM signal.
[0045] Optionally, through the air-cooling heat dissipation interface, the electronic device can also obtain the liquid-cooling flow regulating device's requirements for the adjustment signal, and then, the adjustment requirements of the liquid-cooling flow regulating device can be mapped with the original air-cooling heat dissipation device driving logic in the electronic device and the first adjustment signal can be adjusted. For example, a conversion table or mapping function can be created to convert the original fan PWM signal into a signal suitable for the liquid-cooling flow regulating device. Based on the characteristic curve of the liquid-cooling flow regulating device, the duty cycle of the PWM signal is adjusted to obtain a PWM signal for indicating the flow and pressure required by the liquid-cooling flow regulating device.
[0046] Optionally, after the adjustment is completed, corresponding experiments and tests may be performed to verify whether the adjusted first adjustment signal can effectively drive the liquid cooling flow regulating device and meet the heat dissipation requirements of the corresponding heat dissipation branch.
[0047] In this embodiment, after receiving the adjusted first adjustment signal, the control component can send the first adjustment signal directly to the actuator of the liquid cooling flow control device to control the cooling medium flow of the corresponding heat dissipation branch. The actuator here can be used to adjust the flow size of the cooling medium.
[0048] Optionally, based on the working characteristics of the liquid-cooled flow regulating device, the firmware of the original electronic device can be appropriately modified, and the parameters of the fan speed adjustment in its heat dissipation strategy can be fine-tuned to make it suitable for the working characteristics of the liquid-cooled flow regulating device and the heat dissipation requirements of the branch where it is located. In this way, the control unit of the liquid-cooled flow regulating device only needs to realize the drive speed regulation of the motor, thereby simplifying the design of the control unit.
[0049] Through the embodiments of the present application, a first adjustment signal is received by a control component of a liquid-cooled flow regulating device via an air-cooled heat dissipation interface, wherein the air-cooled heat dissipation interface is an interface on an electronic device for connecting an air-cooled heat dissipation device; when the first adjustment signal is obtained by adjusting the adjustment signal of the air-cooled heat dissipation device and is used to adjust the flow of the cooling medium of the heat dissipation branch corresponding to the liquid-cooled flow regulating device, the first adjustment signal is sent to the actuator of the liquid-cooled flow regulating device through the control component to control the flow of the cooling medium of the heat dissipation branch corresponding to the liquid-cooled flow regulating device, which can solve the problem of insufficient flexibility and accuracy caused by reliance on unified control in the liquid-cooled flow regulation method in the related art, improve the flexibility and accuracy of cooling medium flow regulation, and reduce resource consumption.
[0050] In one exemplary embodiment, the actuator includes a brushless motor and a boost pump;
[0051] After the control component sends the first adjustment signal to the actuator of the liquid-cooling flow regulating device, the method further includes:
[0052] The brushless motor is controlled by the first adjustment signal and rotates at a speed corresponding to the first adjustment signal to drive the boost pump to adjust the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow adjustment device.
[0053] In this embodiment, the core component of the actuator may be a brushless motor and a booster pump connected thereto. The coil winding of the brushless motor may drive the magnetic poles of the brushless motor to rotate under the control of the first adjustment signal, thereby driving the booster pump to operate.
[0054] Optionally, the booster pump's cooling medium input can be connected to a main cooling medium pipeline, while its output is connected to a heat sink (e.g., a cold plate) corresponding to the heat dissipated device. Driven by a first liquid regulation signal, the cooling medium flow rate in this heat dissipation branch is dynamically adjusted, independent of the liquid pressure in the main cooling medium pipeline. The main cooling medium pipeline can be connected to an outdoor heat exchanger, transferring heat from the heat dissipated device to the outside, thereby dissipating heat from the electronic device or component.
[0055] The brushless motor in this embodiment can be a pole-separated brushless motor, for example, Figure 3 As shown, the impeller and the pole wheel in the booster pump can be installed on the same axis and fixed in the pump body, so that they can rotate synchronously; the entire pump body or the outer shell of the pole wheel is made of non-magnetic material, that is, a material that can be penetrated by magnetic force, so that the brushless motor coil winding can penetrate the shell to drive the pole wheel. This design of separating the brushless motor coil winding from the pole wheel also ensures the watertightness of the pump body, realizing the hydraulic and electrical separation design of the actuator.
[0056] Here, the pole-separated brushless motor is also a separated rotating pole brushless motor. Its pole wheel and coil winding are structurally separated and driven by magnetic coupling. The advantage of this design is that part of the motor (such as the coil winding) can be placed in a dry environment, while the other part (the booster pump composed of the pole wheel and impeller) is placed in the coolant to achieve complete isolation between electrical and hydraulic systems. The function of the booster pump is to increase the pressure of the cooling medium to ensure that it can effectively circulate in the pipeline and take away the heat from the IT equipment. Therefore, the brushless motor can drive the impeller to rotate at high speed, generate the necessary driving force, make the cooling medium flow, and adjust the flow rate to meet the heat dissipation requirements.
[0057] Through this embodiment, the brushless motor and boost pump in the actuator adjust the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulating device in response to the first adjustment signal, thereby realizing an efficient and flexible control mechanism of the distributed liquid cooling flow regulating device and improving the flexibility and accuracy of the liquid cooling flow regulating method.
[0058] In an exemplary embodiment, after the control component of the liquid cooling flow regulating device receives the first regulating signal via the air cooling heat dissipation interface, the method further includes:
[0059] In a case where the first adjustment signal is an adjustment signal for adjusting the rotational speed of the air-cooled heat sink, the control component converts the first adjustment signal into a second adjustment signal, wherein the second adjustment signal is an adjustment signal for adjusting the flow rate of the cooling medium in the heat sink branch corresponding to the liquid-cooled flow rate adjustment device;
[0060] The second regulating signal is sent to the actuator through the control component to control the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulating device.
[0061] Optionally, when it is impossible or inconvenient to modify the device firmware, that is, when the first adjustment signal output by the electronic device through the air-cooling heat dissipation interface is a control signal directly used to adjust the speed of the air-cooling heat dissipation device, the control component can also automatically parse and convert the received signal and adjust the signal to adapt to the flow control requirements of the liquid-cooling flow control device. This inheritance strategy can be adjusted through software. For example, the control component can include a microcontroller that can integrate an algorithm for adjusting the signal, so that precise flow regulation can be achieved without changing the original heat dissipation control logic of the device, thereby improving the adaptability and flexibility of liquid cooling regulation.
[0062] Optionally, after converting the signal output by the electronic device through the air-cooled heat dissipation interface into a signal suitable for controlling the flow of the cooling medium, the control component can send a second adjustment signal to the actuator to control the flow of the cooling medium in the heat dissipation branch corresponding to the liquid-cooled flow regulating device.
[0063] For example, Figure 4 As shown, the control component can obtain the first adjustment signal (i.e., pulse width modulation signal, also known as pulse width modulation signal) and power supply based on the fan interface and be grounded through this interface. A, B, and C are the three-phase connection points on the brushless motor coil winding, which are used to generate a rotating magnetic field by alternately controlling the on and off of the corresponding A, B, and C windings to drive the stimulation wheel of the motor to rotate so as to realize the control of the boost pump. After receiving the first adjustment signal, the control component can convert it into a signal suitable for driving the brushless motor, which is used to control the speed of the motor and thereby adjust the flow of the cooling medium.
[0064] Through this embodiment, the first adjustment signal is adjusted by the control component to make it suitable for the liquid cooling flow rate regulating device, thereby achieving efficient and flexible control of the liquid cooling system.
[0065] In an exemplary embodiment, converting the first adjustment signal into the second adjustment signal by a control component includes:
[0066] Analyzing the first regulating signal through the control component to obtain a duty cycle of the first regulating signal;
[0067] The duty cycle of the first regulating signal is lowered by the control component to obtain the second regulating signal.
[0068] In this embodiment, after receiving the first adjustment signal via the air-cooled heat dissipation interface, the control component can analyze the first adjustment signal to obtain the duty cycle of the first adjustment signal. Here, the control component can include a built-in microcontroller for analyzing the signal and identifying the duty cycle of the signal.
[0069] Since the speed of the cooling fan is relatively high, while the speed required by the liquid cooling flow regulating device is relatively low and the required control accuracy is higher, the liquid cooling flow regulating device can provide the necessary flow to meet the cooling requirements at a lower duty cycle.
[0070] Optionally, the duty cycle of the first adjustment signal can be lowered by the control component to obtain a second adjustment signal. For example, after parsing the duty cycle of the first adjustment signal, the microcontroller in the control component can lower the original duty cycle of the PWM signal according to the characteristic curve of the liquid cooling flow control device and the heat dissipation requirements of the corresponding heat dissipation branch to generate a second adjustment signal. In this way, liquid cooling can be introduced and deployed without making changes to the software and hardware of the original IT equipment.
[0071] Optionally, the control component can obtain the characteristic curve of the liquid cooling flow regulating device and the heat dissipation requirements of the corresponding heat dissipation branch through the air cooling heat dissipation interface, or it can pre-store the characteristic curve of the liquid cooling flow regulating device and obtain the heat dissipation requirements of the corresponding heat dissipation branch through a sensor. This is not limited in this embodiment.
[0072] Through this embodiment, by reducing the duty cycle of the first adjustment signal to obtain the second adjustment signal for controlling the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulation device, fine control of the cooling medium flow can be achieved, the heat dissipation efficiency of the liquid cooling flow regulation device is improved, and energy waste is reduced.
[0073] In an exemplary embodiment, the first adjustment signal is received via an input / output interface of the control component;
[0074] The control component analyzes the first adjustment signal to obtain a duty cycle of the first adjustment signal, including:
[0075] triggering an interrupt event at a specified moment of a change cycle of the first adjustment signal by a timer of the control component to determine the duty cycle of the first adjustment signal; or,
[0076] The state of the first adjustment signal is periodically queried through a designated program in the control component to determine the duty cycle of the first adjustment signal.
[0077] In this embodiment, the first adjustment signal is received through an input / output interface of the control component, for example, it may be received through an interface of a microcontroller of the control component.
[0078] Optionally, the control component may obtain the frequency and duty cycle of the first adjustment signal by way of timer interruption or program query.
[0079] Here, the frequency and duty cycle of the first adjustment signal are obtained through a timer interrupt, and the timer of the control component can be used to trigger an interrupt event at a specified time of the change cycle of the first adjustment signal to determine the duty cycle of the first adjustment signal. It can be based on the timer in the control component to detect the state of the first adjustment signal at a preset time point. Whenever the cycle of the first adjustment signal reaches a preset trigger point, the timer can generate an interrupt request, and then the control component can read and record the high-level duration and cycle time of the signal through the interrupt service program. For example, the timer can trigger an interrupt event at the rising edge or falling edge of each first adjustment signal cycle. The control component can read the high-level duration through a counter in the interrupt service program, and then divide it by the entire signal cycle time to obtain the duty cycle.
[0080] Alternatively, the control component may periodically query the status of the first regulating signal through a program. This method does not rely on hardware interrupts, but rather can periodically check the signal level through a loop or timed task, record the duration of the signal's high level, and ultimately calculate the duty cycle. For example, the control software program may check the signal status at fixed intervals, such as once every half signal cycle. When the signal is at a high level, the program begins counting until the signal becomes low. The program can then calculate the duty cycle based on the recorded high level duration and the total signal cycle time.
[0081] For example, Figure 5 As shown, after obtaining the first adjustment signal input, the microcontroller can obtain the frequency and duty cycle parameters of the signal through the timer and the terminal, re-modulate it through the modulation strategy, and output it as the second adjustment signal.
[0082] Optionally, the method triggered by an interrupt event can provide more accurate signal reading, while the method of periodic query by a program is more flexible and easy to implement. The method of parsing the first adjustment signal can be selected based on user needs or the design difficulty of the control component, which is not limited in this embodiment.
[0083] Through this embodiment, by triggering an interrupt event or periodically querying the program to analyze the duty cycle of the first adjustment signal, accurate analysis and reading of the signal can be achieved to respond to the heat dissipation requirements of the heat dissipation branch and achieve efficient and intelligent heat dissipation control.
[0084] In an exemplary embodiment, the liquid cooling flow regulating device further includes a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is used to monitor the temperature of the cooling medium flowing into the heat sink, and the second temperature sensor is used to monitor the temperature of the cooling medium flowing out of the heat sink, and the heat sink is attached to the heat sink;
[0085] The above method further includes:
[0086] acquiring, by the control component, sensor data of the first temperature sensor and sensor data of the second temperature sensor;
[0087] determining, by a control component, a parameter value of a flow regulation parameter based on sensor data of the first temperature sensor and sensor data of the second temperature sensor, wherein the flow regulation parameter is used to indicate a cooling medium flow rate of a heat dissipation branch corresponding to the liquid cooling flow regulation device;
[0088] The parameter value of the flow regulation parameter is converted into a third regulation signal by the control component, and the third regulation signal is sent to the actuator of the liquid cooling flow regulation device to control the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulation device.
[0089] In the aforementioned embodiment, the distributed liquid cooling flow dynamic regulation device can obtain the working power supply and the fan speed control signal of the device from the air cooling heat dissipation interface, and adjust the signal duty cycle according to the fan speed control PWM signal combined with the characteristics of liquid cooling heat dissipation to adapt it to the working characteristics and pressure intensity of liquid cooling, thereby driving the liquid cooling flow regulation actuator. This does not require modification of the original hardware circuit and firmware of the IT equipment; the device's fan speed control signal can also be used to directly drive the cold liquid flow regulation actuator, which requires modification of the fan drive logic of the heat dissipation function in the firmware to adapt it to the flow control of liquid cooling, but can simplify the design complexity of the liquid cooling flow dynamic regulation device. The above solution not only realizes the access of the liquid cooling flow regulation device, but also meets the current heat dissipation requirements of the equipment.
[0090] In this embodiment, the liquid cooling flow regulating device can also use a temperature sensor installed at the cooling medium inlet / outlet pipe of the heat dissipation branch to obtain the temperature difference between the cold liquid flowing into and out of the heat dissipation cold plate, and calculate the cold liquid (i.e., cooling medium) flow required for the current heat dissipation of the heat dissipation device according to a preset algorithm, thereby driving the actuator to adjust the cold liquid flow.
[0091] Optionally, the liquid cooling flow regulating device also includes a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is used to monitor the temperature of the cooling medium flowing into the heat sink, and the second temperature sensor is used to monitor the temperature of the cooling medium flowing out of the heat sink, and the heat sink is attached to the heat dissipated device.
[0092] For example, Figure 6 As shown, the liquid cooling flow regulating device can be mounted on the original fan mounting position and connected to the fan interface, the cold plate (i.e., the heat dissipation device) can be attached to the heat dissipation device, and the coolant can flow from the heat exchange device through the liquid cooling flow regulating device into the cold plate, and take away the heat of the heat dissipation device, and flow out of the cold plate back to the heat exchange device to complete the cycle. Two temperature sensors can be respectively installed on the coolant inlet / outlet pipes to monitor the temperature of the cooling medium flowing into the heat dissipation device and the temperature of the cooling medium flowing out of the heat dissipation device. Corresponding to multiple heat dissipation devices, there can also be multiple liquid cooling flow regulating devices.
[0093] Optionally, the control component may acquire sensor data periodically or continuously. Data acquisition may be achieved through a dedicated analog signal or bus interface, which may depend on the type of temperature sensor and the interface design of the control component, and is not limited in this embodiment.
[0094] Optionally, the control component can calculate the temperature difference between the inlet temperature and the outlet temperature of the cooling medium based on the real-time temperature data of the first temperature sensor and the second temperature sensor. The size of the temperature difference can reflect the heat dissipation effect and heat dissipation demand of the heat dissipation device. Then, based on the sensor data obtained by the control component, it can determine the parameter value of the flow regulation parameter, wherein the flow regulation parameter is used to indicate the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulation device. For example, if the cooling medium outlet temperature is too high, it means that the current coolant flow is insufficient to meet the current heat dissipation demand of the equipment. The flow regulation parameter can instruct the actuator to increase the flow, and its parameter value can be increased; if the outlet temperature is low, it means that the current flow may be excessive. The flow regulation parameter can instruct the actuator to reduce the flow to achieve the best heat dissipation effect and energy utilization efficiency, and its parameter value can be reduced.
[0095] Optionally, the control component can convert the calculated flow regulation parameter value into a third regulation signal suitable for the actuator to understand. The third regulation signal can be a PWM signal to control the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulation device through its duty cycle.
[0096] Optionally, in response to different design requirements, different flow control strategies can be selected, for example, Figure 7As shown, a direct drive strategy can be selected, that is, the firmware outputs a flow control signal according to the heat dissipation strategy, and the flow control signal can be directly used to drive the motor coil to control the coolant pump to adjust the flow rate; an inheritance strategy can also be selected, that is, after obtaining the host signal, the frequency or duty cycle of the signal can be adjusted according to the adjustment strategy, and the adjusted signal can be used to drive the motor coil to control the temperature of the cooling medium flowing into the heat dissipation device. The second temperature sensor is used to monitor the temperature of the cooling medium flowing out of the heat dissipation device to control the coolant pump to adjust the flow rate; an automatic control strategy can also be selected, that is, the liquid temperature data (that is, the temperature of the cooling medium flowing into the heat dissipation device and the temperature of the cooling medium flowing out of the heat dissipation device) can be obtained, the speed control parameters can be determined based on the speed control strategy, and then the adjustment signal can be generated to drive the motor coil to control the coolant pump to adjust the flow rate.
[0097] Optionally, different signals can be used to drive the motor coils according to different flow control strategies. Here, the control component may further include a motor speed regulator for calculating a motor speed command value based on the duty cycle of the received signal. The calculated command value is converted into an electrical signal understandable by the motor to control the direction and intensity of the current in the motor windings, thereby changing the rotational speed of the motor's magnetic poles.
[0098] For example, Figure 8 As shown, the microcontroller can have various buses and input / output interfaces with analog-to-digital converter (ADC) functions, which can be connected to temperature sensors of various interfaces. Corresponding to the direct drive strategy, the first adjustment signal after firmware adaptation (i.e., modification of the electronic device) can be directly input into the motor speed regulator; corresponding to the inheritance strategy, the unadjusted first adjustment signal can be input into the microcontroller, and after adaptive adjustment by the microcontroller, it is output as a drive signal to the motor speed regulator; corresponding to the automatic control strategy, the microcontroller can calculate the flow adjustment parameter value based on the received temperature sensor and convert it into a third adjustment signal suitable for the actuator to understand, and output it as a drive signal to the motor speed regulator.
[0099] Through this embodiment, an independent liquid cooling adjustment strategy can be implemented by determining the temperature difference of the cooling medium flowing into the heat dissipation device through a temperature sensor and generating a corresponding adjustment signal, thereby improving the flexibility and reliability of the liquid cooling adjustment.
[0100] In an exemplary embodiment, the parameter value of the flow rate regulating parameter is positively correlated with the cooling medium flow rate of the heat dissipation branch corresponding to the liquid cooling flow rate regulating device;
[0101] Determining, by the control component, a parameter value of a flow regulation parameter based on sensor data of the first temperature sensor and sensor data of the second temperature sensor, comprising:
[0102] Based on the sensor data of the first temperature sensor, a temperature value of the cooling medium inflow temperature corresponding to the heat dissipation device is obtained;
[0103] Based on the sensor data of the second temperature sensor, a temperature value of the cooling medium outflow temperature corresponding to the heat dissipation device is obtained;
[0104] Determine the temperature difference between the cooling medium inflow temperature and the cooling medium outflow temperature to obtain a current temperature difference;
[0105] When the current temperature difference is greater than or equal to the specified temperature difference threshold, the parameter value of the flow adjustment parameter is increased to increase the flow rate of the cooling medium of the heat dissipation branch corresponding to the liquid cooling flow adjustment device;
[0106] When the current temperature difference is less than the specified temperature difference threshold, the parameter value of the flow adjustment parameter is adjusted down to reduce the flow of the cooling medium in the heat dissipation branch corresponding to the liquid cooling flow adjustment device.
[0107] Alternatively, as shown in formula (1):
[0108] Q=CM(T H -T L ) (1)
[0109] Among them, T H Indicates the temperature value of the cooling medium outflow temperature corresponding to the heat dissipation device, T L The temperature value of the cooling medium flowing into the heat sink corresponds to the temperature of the heat sink. Q represents the relatively stable value of the heat that needs to be dissipated by the heat sink per unit time. C represents the specific heat capacity of the cooling medium. M represents the mass of the cooling medium flowing through the cold plate per unit time. When the temperature difference is too high, the cooling medium flow rate may be too low, resulting in poor heat dissipation effect. The cooling medium flow rate needs to be increased to enhance the heat dissipation effect.
[0110] Optionally, the parameter value of the flow regulation parameter is positively correlated with the cooling medium flow rate of the heat dissipation branch corresponding to the liquid cooling flow regulation device. The determination and adjustment of the flow regulation parameter can be performed based on the temperature difference of the cooling medium. The change in the temperature difference can reflect the heat dissipation efficiency of the heat dissipation device and whether the current cooling medium flow rate is suitable for the heat dissipation demand. For example, when ΔT ≥ a threshold value (i.e., the current temperature difference is greater than or equal to a specified temperature difference threshold value), it indicates that the current flow rate is insufficient to effectively dissipate heat, resulting in a significant increase in the temperature of the cooling medium after flowing through the heat dissipation device. In this case, the control component can increase the parameter value of the flow regulation parameter, i.e., increase the flow rate of the cooling medium in the heat dissipation branch corresponding to the liquid cooling flow regulation device, improve the heat dissipation efficiency, and ensure that the temperature difference of the cooling medium does not exceed a safe range. When ΔT < a threshold value (i.e., the current temperature difference is less than the specified temperature difference threshold value), it means that the current flow rate exceeds the actual demand of the heat dissipation device, resulting in unnecessary energy consumption and possible overcooling. In this case, the control component can decrease the parameter value of the flow regulation parameter to reduce the flow rate of the cooling medium in the heat dissipation branch corresponding to the liquid cooling flow regulation device, slow down the flow of the cooling medium, and make the liquid cooling regulation more economical and efficient.
[0111] Optionally, the control component may use a proportional-integral-differential (PID) control algorithm to adjust the flow regulation parameters, for example, Figure 9 As shown, the difference c(t) between the inlet and outlet temperatures of the cold liquid obtained by the temperature sensor (i.e., temperature sensor) and a fixed value r(t) (e.g., 10°C) can be used as the difference e(t), which is returned to the control function e(t) as a correction value. Then, the parameter u(t) is generated through proportional, integral, and differential operations to adjust the actuator (i.e., flow control pump) to control the flow of cold liquid, so that the temperature of the cold liquid flowing out of the cold plate varies within a certain range above the temperature of the inlet cold liquid, thereby achieving dynamic adjustment according to the heat dissipation of the chip.
[0112] Optionally, different flow levels can be preset, such as low, medium, and high flow. Each level can be assigned a corresponding PID parameter value. When the temperature difference calculated based on the data obtained by the temperature sensor exceeds a preset threshold, the system automatically switches to the next higher flow level, increasing the flow rate of the cooling medium and improving heat dissipation efficiency. Similarly, when the temperature difference decreases below a certain threshold, the flow level can be automatically lowered to reduce energy consumption.
[0113] Optionally, a flow sensor can be installed on the cooling medium delivery pipeline to monitor whether the actual flow rate matches the set flow level. If a deviation is found, the actuator speed is adjusted until the actual flow rate matches the target flow rate.
[0114] Optionally, the microcontroller can record historical temperature difference information and corresponding flow levels, optimize PID parameters through machine learning algorithms, and automatically adjust to subtle changes in the equipment's cooling requirements during long-term operation.
[0115] Through this embodiment, by determining the temperature difference between the temperature value of the cooling medium inflow temperature and the temperature value of the cooling medium outflow temperature, and correspondingly adjusting the parameter value of the flow adjustment parameter to increase or decrease the flow of the cooling medium in the heat dissipation branch corresponding to the liquid cooling flow adjustment device, precise liquid cooling adjustment can be achieved independently and autonomously, thereby improving the flexibility and reliability of liquid cooling adjustment.
[0116] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method.
[0117] The embodiment of the present application also provides a liquid cooling flow regulating device, such as Figure 10 As shown, the device includes: a control component 1002 and an actuator 1004; wherein,
[0118] The control component 1002 is configured to receive a first adjustment signal via an air-cooling heat dissipation interface 1006, where the air-cooling heat dissipation interface 1006 is an interface on the electronic device 1008 for connecting to an air-cooling heat dissipation device; and, if the first adjustment signal is a adjustment signal obtained by adjusting the adjustment signal of the air-cooling heat dissipation device and used to adjust the flow rate of the cooling medium in the heat dissipation branch corresponding to the liquid-cooling flow control device, send the first adjustment signal to the actuator 1004;
[0119] The actuator 1004 is used to control the cooling medium flow rate of the heat dissipation branch corresponding to the liquid cooling flow rate regulating device in response to the first regulating signal.
[0120] It should be noted that the control component 1002 can be used to implement the steps S102 and S104.
[0121] Through the above-mentioned module, the control component of the liquid-cooled flow regulating device receives a first regulation signal via the air-cooled heat dissipation interface, wherein the air-cooled heat dissipation interface is an interface on an electronic device for connecting an air-cooled heat dissipation device; when the first regulation signal is a regulation signal obtained by adjusting the regulation signal of the air-cooled heat dissipation device and is used to regulate the flow of the cooling medium of the heat dissipation branch corresponding to the liquid-cooled flow regulating device, the first regulation signal is sent to the actuator of the liquid-cooled flow regulating device through the control component to control the flow of the cooling medium of the heat dissipation branch corresponding to the liquid-cooled flow regulating device, which can solve the problem of insufficient flexibility and accuracy caused by reliance on unified control in the liquid-cooled flow regulation method in the related art, improve the flexibility and accuracy of cooling medium flow regulation, and reduce resource consumption.
[0122] For the description of the features in the embodiment corresponding to the liquid cooling flow regulating device, please refer to the relevant description of the embodiment corresponding to the liquid cooling flow regulating method, and will not be repeated here.
[0123] In an exemplary embodiment, the actuator includes a brushless motor and a booster pump; wherein, the brushless motor is used to rotate at a speed corresponding to the first adjustment signal under the control of the first adjustment signal after the first adjustment signal is sent to the actuator of the liquid-cooling flow regulating device through the control component, so as to drive the booster pump to adjust the cooling medium flow of the heat dissipation branch corresponding to the liquid-cooling flow regulating device.
[0124] In an exemplary embodiment, the control component is also used to convert the first adjustment signal into a second adjustment signal after receiving the first adjustment signal via the air-cooled heat dissipation interface, when the first adjustment signal is an adjustment signal for adjusting the rotational speed of the air-cooled heat dissipation device, wherein the second adjustment signal is an adjustment signal for adjusting the flow of the cooling medium in the heat dissipation branch corresponding to the liquid-cooled flow regulation device; and send the second adjustment signal to the actuator to control the flow of the cooling medium in the heat dissipation branch corresponding to the liquid-cooled flow regulation device.
[0125] In an exemplary embodiment, the control component is further configured to analyze the first adjustment signal to obtain a duty cycle of the first adjustment signal; and reduce the duty cycle of the first adjustment signal to obtain a second adjustment signal.
[0126] In an exemplary embodiment, the first adjustment signal is received through the input / output interface of the control component; the control component is also used to trigger an interrupt event at a specified time of the change cycle of the first adjustment signal through a timer to determine the duty cycle of the first adjustment signal; or, to periodically query the status of the first adjustment signal through a specified program to determine the duty cycle of the first adjustment signal.
[0127] In an exemplary embodiment, the liquid cooling flow regulating device also includes a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is used to monitor the temperature of the cooling medium flowing into the heat sink, and the second temperature sensor is used to monitor the temperature of the cooling medium flowing out of the heat sink, and the heat sink is attached to the heat dissipated device; the control component is also used to: obtain sensor data of the first temperature sensor and sensor data of the second temperature sensor; based on the sensor data of the first temperature sensor and the sensor data of the second temperature sensor, determine the parameter value of the flow regulation parameter, wherein the flow regulation parameter is used to indicate the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulating device; convert the parameter value of the flow regulation parameter into a third regulation signal, and send the third regulation signal to the actuator of the liquid cooling flow regulating device to control the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulating device.
[0128] In an exemplary embodiment, the parameter value of the flow regulation parameter is positively correlated with the cooling medium flow rate of the heat dissipation branch corresponding to the liquid cooling flow regulation device; the control component is also used to obtain the temperature value of the cooling medium inflow temperature corresponding to the heat dissipation device based on the sensor data of the first temperature sensor; and obtain the temperature value of the cooling medium outflow temperature corresponding to the heat dissipation device based on the sensor data of the second temperature sensor; determine the temperature difference between the temperature value of the cooling medium inflow temperature and the temperature value of the cooling medium outflow temperature to obtain the current temperature difference; when the current temperature difference is greater than or equal to the specified temperature difference threshold, increase the parameter value of the flow regulation parameter to increase the cooling medium flow rate of the heat dissipation branch corresponding to the liquid cooling flow regulation device; when the current temperature difference is less than the specified temperature difference threshold, decrease the parameter value of the flow regulation parameter to reduce the cooling medium flow rate of the heat dissipation branch corresponding to the liquid cooling flow regulation device.
[0129] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above-mentioned liquid cooling flow regulation method embodiments when running.
[0130] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.
[0131] An embodiment of the present application further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps in any of the above-mentioned liquid cooling flow regulation method embodiments are implemented.
[0132] An embodiment of the present application also provides another computer program product, including a non-volatile computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the steps in any of the above-mentioned liquid cooling flow regulation method embodiments.
[0133] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the components and steps of each example according to their functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
[0134] The above is a detailed introduction to a liquid cooling flow regulation method, device and storage medium provided by the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.
Claims
1. A liquid cooling flow rate regulation method, characterized in that: include: The control component of the liquid cooling flow regulating device receives a first regulating signal via an air cooling heat dissipation interface, wherein the air cooling heat dissipation interface is an interface on the electronic device for connecting to an air cooling heat dissipation device; In a case where the first adjustment signal is an adjustment signal obtained by adjusting the adjustment signal of the air-cooled heat sink and used to adjust the flow rate of the cooling medium in the heat dissipation branch corresponding to the liquid-cooling flow adjustment device, the first adjustment signal is sent to the actuator of the liquid-cooling flow adjustment device through the control component to control the flow rate of the cooling medium in the heat dissipation branch corresponding to the liquid-cooling flow adjustment device; Wherein, each of the multiple heat dissipation branches is equipped with an independent liquid cooling flow regulating device.
2. The method according to claim 1, characterized in that The actuator includes a brushless motor and a booster pump; After the control component sends the first adjustment signal to the actuator of the liquid-cooling flow regulating device, the method further includes: The brushless motor is controlled by the first regulating signal and rotates at a speed corresponding to the first regulating signal to drive the boost pump to regulate the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulating device.
3. The method according to claim 1, characterized in that After the control component of the liquid-cooling flow regulating device receives the first regulating signal via the air-cooling heat dissipation interface, the method further includes: In a case where the first adjustment signal is an adjustment signal for adjusting the rotational speed of the air-cooled heat sink, the control component converts the first adjustment signal into a second adjustment signal, wherein the second adjustment signal is an adjustment signal for adjusting the flow rate of the cooling medium in the heat sink branch corresponding to the liquid-cooled flow rate adjustment device; The second regulating signal is sent to the actuator through the control component to control the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulating device.
4. The method according to claim 3, characterized in that The converting the first regulating signal into a second regulating signal by the control component includes: parsing the first regulating signal by the control component to obtain a duty cycle of the first regulating signal; The second regulating signal is obtained by lowering the duty cycle of the first regulating signal through the control component.
5. The method according to claim 4, characterized in that The first adjustment signal is received via the input / output interface of the control component; The step of analyzing the first regulating signal by the control component to obtain the duty cycle of the first regulating signal includes: triggering an interrupt event at a specified time of a change cycle of the first regulating signal by a timer of the control component to determine a duty cycle of the first regulating signal; or, The state of the first adjustment signal is periodically queried through a designated program in the control component to determine the duty cycle of the first adjustment signal.
6. The method according to claim 1, characterized in that The liquid cooling flow regulating device further includes a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is used to monitor the temperature of the cooling medium flowing into the heat sink, and the second temperature sensor is used to monitor the temperature of the cooling medium flowing out of the heat sink, and the heat sink is attached to the heat sink; The method further comprises: acquiring, by the control component, sensor data of the first temperature sensor and sensor data of the second temperature sensor; determining, by the control component, a parameter value of a flow regulation parameter based on sensor data of the first temperature sensor and sensor data of the second temperature sensor, wherein the flow regulation parameter is used to indicate a cooling medium flow rate of a heat dissipation branch corresponding to the liquid cooling flow regulation device; The control component converts the parameter value of the flow regulation parameter into a third regulation signal, and sends the third regulation signal to the actuator of the liquid cooling flow regulation device to control the cooling medium flow of the heat dissipation branch corresponding to the liquid cooling flow regulation device.
7. The method according to claim 6, characterized in that The parameter value of the flow rate regulating parameter is positively correlated with the cooling medium flow rate of the heat dissipation branch corresponding to the liquid cooling flow rate regulating device; The determining, by the control component, a parameter value of a flow regulation parameter based on the sensor data of the first temperature sensor and the sensor data of the second temperature sensor includes: obtaining a temperature value of a cooling medium inflow temperature corresponding to the heat sink based on the sensor data of the first temperature sensor; obtaining, from the sensor data of the second temperature sensor, a temperature value of a cooling medium outflow temperature corresponding to the heat sink; Determine a temperature difference between a temperature value of the cooling medium inflow temperature and a temperature value of the cooling medium outflow temperature to obtain a current temperature difference; When the current temperature difference is greater than or equal to a specified temperature difference threshold, increasing the parameter value of the flow regulation parameter to increase the flow rate of the cooling medium in the heat dissipation branch corresponding to the liquid cooling flow regulation device; When the current temperature difference is less than the specified temperature difference threshold, the parameter value of the flow regulation parameter is adjusted down to reduce the flow of the cooling medium in the heat dissipation branch corresponding to the liquid cooling flow regulation device.
8. A liquid cooling flow regulating device, characterized in that: include: Control components and actuators; among them, The control component is configured to receive a first adjustment signal via an air-cooling heat dissipation interface, wherein the air-cooling heat dissipation interface is an interface on an electronic device for connecting to an air-cooling heat dissipation device; when the first adjustment signal is an adjustment signal obtained by adjusting the adjustment signal of the air-cooling heat dissipation device and is used to adjust the flow rate of the cooling medium in the heat dissipation branch corresponding to the liquid-cooling flow control device, send the first adjustment signal to the actuator; The actuator is configured to control the cooling medium flow rate of the heat dissipation branch corresponding to the liquid cooling flow rate regulating device in response to the first regulating signal; Wherein, each of the multiple heat dissipation branches is equipped with an independent liquid cooling flow regulating device.
9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, the steps of the liquid cooling flow rate regulation method according to any one of claims 1 to 7 are implemented.
10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the liquid cooling flow rate regulation method according to any one of claims 1 to 7 are implemented.
Citation Information
Patent Citations
Heat dissipation mode determination method and device, storage medium and electronic equipment
CN118860090A
Optimal controller for hybrid liquid-air cooling system of electronic racks of a data center
US10238011B1