Cooling system and control method

Abstract

The invention discloses a heat dissipation system and a control method. The system comprises a fan group and a control module, wherein the fan group is used for cooling a heat dissipation element; the fan group comprises a plurality of fan units, and each fan unit is provided with an independent driving motor and a speed regulating device; the control module comprises a temperature sensor, a rotating speed sensor and a processor, the temperature sensor is used for monitoring the temperature of the heat dissipation element and the environment temperature in real time, the rotating speed sensor is used for detecting the actual wind speed of each fan unit, and the processor is used for receiving data transmitted by the temperature sensor and the rotating speed sensor and judging the equipment state based on the received data; and selecting a preset control strategy based on the equipment state to send a control signal to the speed regulation device of each fan unit. The rotating speed and the running number of the fans can be automatically adjusted according to the actual temperature and the environment condition of the equipment, precise heat dissipation is achieved, the heat dissipation efficiency is improved, the performance reduction and the fault risk caused by overheating of the equipment are reduced, and electric energy consumption and noise are reduced.

Description

Technical Field

[0001] The present invention relates to a heat dissipation system and a control method, belonging to the technical field of heat dissipation equipment. Background Art

[0002] As the performance of electronic devices continues to improve, the heat generated during their operation is also increasing. In order to ensure the stable operation of electronic devices, an efficient heat dissipation system is required. Traditional fan cooling systems usually use fans with fixed speed or limited gear adjustment. Such fans cannot be precisely adjusted according to the actual heat dissipation needs of the equipment. When the equipment load is low and the heat is low, the fan still runs at a high speed, which not only wastes energy but also generates a lot of noise. When the equipment load is high and the heat is high, the fixed speed fan may not provide sufficient heat dissipation capacity, causing the equipment temperature to be too high, affecting the performance and life of the equipment. In addition, in some complex usage environments, such as when the ambient temperature fluctuates greatly and the ventilation conditions are unstable, traditional fan groups are difficult to achieve optimal heat dissipation effects. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a heat dissipation system and control method that can directional heat dissipation of heat dissipation elements, improve heat dissipation efficiency, reduce energy consumption and noise, and achieve high efficiency and energy saving effects.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides a heat dissipation system, comprising a fan assembly and a control module for cooling a heat dissipation element; The fan group includes a plurality of fan units, each of which is equipped with an independent driving motor and speed regulating device; The control module includes a temperature sensor, a speed sensor and a processor. The temperature sensor is used to monitor the temperature of the heat dissipation element and the ambient temperature in real time. The speed sensor is used to detect the actual wind speed of each fan unit. The processor is used to receive data transmitted by the temperature sensor and the speed sensor, judge the device status based on the received data, and select a preset control strategy based on the device status to send a control signal to the speed regulation device of each fan unit.

[0005] Furthermore, the heat dissipation system further includes a communication module, which is used to realize data transmission and communication between the control module and the fan unit and external devices (such as a main control board of an electronic device).

[0006] Furthermore, the heat dissipation system also includes a display module, which is connected to the control module and is used to display information such as the heat dissipation element temperature, ambient temperature and fan speed in real time, so that users can intuitively understand the operating status of the fan group.

[0007] Furthermore, a deflector is provided at the air outlet of the fan unit, the inner wall of the deflector is an arc-shaped structure and is provided with a guide groove, and the deflector is inclined 15 to 20 degrees relative to the direction of the air outlet; through this optimized design, the airflow blown out by the fan unit can be guided to be more concentrated, thereby improving the heat dissipation efficiency.

[0008] Furthermore, the heat dissipation element is connected to a plurality of heat dissipation chips through a pipeline, and a plurality of fan units are distributed at each heat dissipation core, with the air outlet direction toward the heat dissipation core; and a temperature sensor is provided on each heat dissipation chip.

[0009] In a second aspect, the present invention provides a heat dissipation control method, based on the heat dissipation system described in the first aspect, comprising: Real-time collection of cooling element temperature, ambient temperature, and actual fan unit speed V actual ; Calculate the temperature difference △T between the heat dissipation element temperature and the ambient temperature, Compare the temperature difference △T with the preset temperature threshold to determine the status of the device; Adjust the speed of the fan unit according to the state of the equipment, so that the actual speed of the fan unit V actual Close to the wind speed threshold corresponding to the current state; the temperature threshold and wind speed threshold both include multiple levels.

[0010] Furthermore, the temperature threshold includes a low temperature threshold T low , medium temperature threshold T medium , high temperature threshold T high ; The wind speed threshold includes a low wind speed threshold V low , Medium wind speed threshold V medium , high wind speed threshold V high .

[0011] Furthermore, the speed of the fan unit is adjusted according to the state of the device so that the actual speed of the fan unit V actual Approaching the wind speed threshold corresponding to the current state, including: When △T <T low When the device is in low load or low temperature environment, if V actual >V low , send a speed reduction signal to each fan unit to reduce the fan speed until V actual With V low The difference is ≤5rpm; When T low <△T≤T medium When the device is in normal operation, it is judged that the device is in normal operation. actual With V medium The fan speed is adjusted by the difference until V actualWith V medium The difference is ≤5rpm; When T medium <△T≤T high When the device is judged to be in a high load or high temperature environment, a speed-up signal is sent to each fan unit to increase the fan speed until V actual =V high .

[0012] Furthermore, if a single fan unit reaches its maximum speed and still cannot make V actual =V high , then start the adjacent fan unit and put it into operation.

[0013] Furthermore, the control method further includes: When △T>T high When the device is judged to be in an emergency high temperature state, the speed of all fan units is adjusted to the maximum, and an alarm signal is sent to the external device through the communication module.

[0014] Furthermore, the control method also includes cyclic monitoring and adjustment: the control module continuously collects, processes and analyzes data, and adjusts the operating mode of the fan group in real time according to the equipment operating status and environmental changes, forming a closed-loop control to ensure that the fan group is always in the optimal heat dissipation state.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The heat dissipation system of the present invention can automatically adjust the fan speed and number of fans in operation according to the actual temperature and environmental conditions of the equipment, achieving precise heat dissipation. Compared with traditional fixed-speed fan groups, it can significantly improve heat dissipation efficiency and effectively reduce the performance degradation and failure risks of the equipment due to overheating. By properly adjusting the fan operating state, the fan speed is reduced when the equipment is under low load, reducing power consumption and noise generation, meeting energy-saving and environmental protection requirements, and improving the user experience. The present invention optimizes the design of the air guide cover to make the heat dissipation airflow more concentrated, further improving the heat dissipation effect; the display module allows users to intuitively understand the fan group operation information, facilitating equipment maintenance and management; The heat dissipation control method of the present invention adopts a hierarchical threshold judgment and closed-loop control strategy, can quickly and accurately respond to changes in equipment and environment, ensure that the fan group always operates in the best state, and has strong adaptability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural block diagram of a heat dissipation system provided by an embodiment of the present invention; Figure 2 This is a control logic diagram of a heat dissipation control method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. Unless there is a conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0018] The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates an "or" relationship between the related objects.

[0019] Example 1: This embodiment provides a heat dissipation system, such as Figure 1 As shown, it includes a fan group for cooling the heat dissipation element, a control module, a communication module and a display module; In this embodiment, the fan group includes multiple fan units, each fan unit is equipped with an independent drive motor and speed regulation device; the speed regulation device can adjust the speed of the drive motor according to the received control signal, and the drive motor controls the fan speed in real time, thereby achieving precise control of the fan speed.

[0020] In this embodiment, the control module includes a temperature sensor, a speed sensor and a processor. The temperature sensor is used to monitor the temperature of the heat dissipation element and the ambient temperature in real time, convert the temperature data into an electrical signal and transmit it to the processor. The speed sensor is used to detect the actual wind speed of each fan unit and feed back the wind speed information to the processor. The processor is used to receive data transmitted by the temperature sensor and the speed sensor, judge the device status based on the received data, and select a preset control strategy based on the device status to send a control signal to the speed regulation device of each fan unit.

[0021] In this embodiment, the communication module is used to realize data transmission and communication between the control module and the fan unit and external devices (such as the main control board of the electronic device); the display module is connected to the control module and can display information such as component temperature, ambient temperature, fan speed, etc. in real time, so that the user can intuitively understand the operating status of the fan group.

[0022] In this embodiment, the heat dissipation element is connected to multiple heat dissipation chips through pipes, and multiple fan units are distributed at each heat dissipation core, with the air outlet direction toward the heat dissipation core; a temperature sensor is provided on each heat dissipation chip; and the speed sensor is installed at the air outlet of each fan unit.

[0023] In this embodiment, a deflector is provided at the air outlet of the fan unit. The inner wall of the deflector is an arc-shaped structure and is provided with a guide groove. The deflector is inclined 15 to 20 degrees relative to the direction of the air outlet. Through this optimized design, the airflow blown out by the fan unit can be guided to flow more concentratedly to the heat dissipation core, thereby improving the heat dissipation efficiency.

[0024] Example 2: This embodiment provides a heat dissipation control method, based on the heat dissipation system described in Example 1, including: real-time acquisition of the heat dissipation element temperature and the ambient temperature, the actual speed V of the fan unit, actual ; Calculate the temperature difference △T between the heat dissipation element temperature and the ambient temperature, Compare the temperature difference △T with the preset temperature threshold to determine the status of the device; Adjust the speed of the fan unit according to the state of the equipment, so that the actual speed of the fan unit V actual Close to the wind speed threshold corresponding to the current state; the temperature threshold and wind speed threshold both include multiple levels.

[0025] Figure 2 This is a flow chart of a heat dissipation control method provided by this embodiment. This flow chart only shows the logical sequence of the method described in this embodiment. In other possible embodiments of the present invention, different methods may be used without conflict. Figure 1 The steps shown or described are accomplished in the order shown.

[0026] The heat dissipation control method provided in this embodiment can be applied to a terminal and can be executed by a heat dissipation control device. The device can be implemented by software and / or hardware and can be integrated into a terminal, such as any smart phone, tablet computer or computer device with communication function. Figure 2 The heat dissipation control method of this embodiment specifically includes the following steps: (1) Data collection: The temperature sensor collects the temperature T of the device's heat dissipation element in real time device and ambient temperature T ambient The speed sensor collects the actual wind speed V at the fan unit outlet. actual and transmits the collected data to the control module.

[0027] (2) Data processing and analysis: The control module receives data transmitted by the temperature sensor and the speed sensor, and calculates the difference between the device temperature and the ambient temperature △T=T device -T ambient , and △T and V actual Compare and analyze with the preset temperature threshold and wind speed threshold. The preset temperature threshold is divided into multiple levels, such as the low temperature threshold T low , medium temperature threshold T medium, high temperature threshold T high ; The preset wind speed threshold is also divided into multiple levels, such as the low wind speed threshold V low , Medium wind speed threshold V medium , high wind speed threshold V high .

[0028] (3) Control strategy execution: When △T<T low When the control module determines that the device is in a low load or low temperature environment, if V actual >V low The control module sends a speed reduction signal to each fan unit through the communication module to reduce the fan speed until V actual With V low The difference is ≤5rpm to reduce energy consumption and noise; When T low <∆△T≤T medium When the control module determines that the device is in normal operation, according to V actual With V medium The difference between V actual With V medium The difference is ≤5rpm, ensuring stable heat dissipation of the equipment; When T medium <△T≤T high When the control module determines that the device is in a high load or high temperature environment, the control module sends a speed-up signal to each fan unit through the communication module to increase the fan speed until V actual =V high .

[0029] If a single fan unit reaches its maximum speed and still cannot make V actual Reach V high , the control module starts more fan units and puts them into operation to enhance the heat dissipation capacity.

[0030] When △T>T high When the device is in an emergency high temperature state, the control module determines that the device is in an emergency high temperature state. The control module adjusts the speed of all fan units to the maximum and can send an alarm signal to the external device through the communication module to remind the user that the device is at risk of overheating.

[0031] The control method also includes cyclic monitoring and adjustment: the control module continuously collects, processes and analyzes data, and adjusts the operating mode of the fan group in real time according to the equipment operating status and environmental changes, forming a closed-loop control to ensure that the fan group is always in the optimal heat dissipation state.

[0032] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0033] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0034] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0035] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A heat dissipation system, characterized in that: including a fan group and a control module for cooling the heat dissipation element; The fan group includes a plurality of fan units, each of which is equipped with an independent driving motor and speed regulating device; The control module includes a temperature sensor, a speed sensor and a processor. The temperature sensor is used to monitor the temperature of the heat dissipation element and the ambient temperature in real time. The speed sensor is used to detect the actual wind speed of each fan unit. The processor is used to receive data transmitted by the temperature sensor and the speed sensor, judge the device status based on the received data, and select a preset control strategy based on the device status to send a control signal to the speed regulation device of each fan unit.

2. The heat dissipation system according to claim 1, characterized in that: It also includes a communication module, which is used to realize data transmission and communication between the control module and the fan unit and external devices.

3. The heat dissipation system according to claim 1, wherein: It also includes a display module, which is connected to the control module and is used to display the heat dissipation element temperature, ambient temperature and fan speed information in real time.

4. The heat dissipation system according to claim 1, wherein: The air outlet of the fan unit is provided with an air deflector, the inner wall of the air deflector is an arc-shaped structure and is provided with a guide groove, and the air deflector is inclined 15 to 20 degrees relative to the direction of the air outlet.

5. The heat dissipation system according to claim 1, wherein: The heat dissipation element is connected to a plurality of heat dissipation chips through pipelines, and a plurality of fan units are distributed at each heat dissipation core, with the air outlet direction toward the heat dissipation core; a temperature sensor is provided on each heat dissipation chip.

6. A heat dissipation control method, based on the heat dissipation system according to any one of claims 1 to 5, characterized in that: include: Real-time collection of cooling element temperature, ambient temperature, and actual fan unit speed V actual ; Calculate the temperature difference △T between the heat dissipation element temperature and the ambient temperature, Compare the temperature difference △T with the preset temperature threshold to determine the status of the device; Adjust the speed of the fan unit according to the state of the equipment, so that the actual speed of the fan unit V actual Close to the wind speed threshold corresponding to the current state; the temperature threshold and wind speed threshold both include multiple levels.

7. The heat dissipation control method according to claim 6, characterized in that: The temperature threshold includes a low temperature threshold T low , medium temperature threshold T medium , high temperature threshold T high ; The wind speed threshold includes a low wind speed threshold V low , Medium wind speed threshold V medium , high wind speed threshold V high .

8. The heat dissipation control method according to claim 7, wherein: The speed of the fan unit is adjusted according to the state of the device, so that the actual speed of the fan unit V actual Approaching the wind speed threshold corresponding to the current state, including: When △T <T low When the device is in low load or low temperature environment, if V actual >V low , send a speed reduction signal to each fan unit to reduce the fan speed until V actual With V low The difference is ≤5rpm; When T low <△T≤T medium When the device is in normal operation, it is judged that the device is in normal operation. actual With V medium The fan speed is adjusted by the difference until V actual With V medium The difference is ≤5rpm; When T medium <△T≤T high When the device is judged to be in a high load or high temperature environment, a speed-up signal is sent to each fan unit to increase the fan speed until V actual =V high .

9. The heat dissipation control method according to claim 8, characterized in that: If a single fan unit reaches its maximum speed and still cannot make V actual =V high , then start the adjacent fan unit and put it into operation.

10. The heat dissipation control method according to claim 7, wherein: The control method further includes: When △T>T high When the device is judged to be in an emergency high temperature state, the speed of all fan units is adjusted to the maximum, and an alarm signal is sent to the external device through the communication module.

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