Intelligent speed regulation device for cooling fan of server liquid cooling system

Abstract

The utility model provides an intelligent speed regulation device for a cooling fan of a server liquid cooling system, which relates to the technical field of server liquid cooling and comprises a main body mechanism and a cooling mechanism arranged on one side of the main body mechanism. The main body mechanism comprises a server body, and a display panel and an audible and visual alarm are installed on the front face of the server body. The heat dissipation mechanism comprises a cold plate, and a circulating pipeline is arranged on one side of the cold plate. According to the utility model, the flow, the pressure and the temperature of the cooling liquid in each stage in the liquid cooling system are monitored by applying various monitoring modules, and the response lag caused by a single parameter is avoided by combining the multi-parameter speed regulation of the temperature, the flow and the pressure, so that the liquid cooling system is ensured to maintain the optimal heat dissipation effect under different working conditions; and the rotating speed of the fan is dynamically adjusted by applying a PID algorithm, the rotating speed is reduced during low load, the fan energy consumption is reduced, and the green and energy-saving requirements of the server are met.

Description

Technical Field

[0001] This utility model relates to the field of server liquid cooling technology, and in particular to an intelligent speed control device for a server liquid cooling system cooling fan. Background Technology

[0002] Server liquid cooling systems are an advanced cooling technology that uses a liquid medium for efficient heat dissipation. This technology leverages the excellent thermal conductivity of liquids to rapidly remove heat generated inside the server, effectively reducing the device's temperature. This system is particularly suitable for high-density computing scenarios, such as large data centers and high-performance computing centers. In these scenarios, server clusters consume extremely high amounts of power and generate a great deal of heat, making traditional air cooling methods insufficient for their cooling requirements. Liquid cooling systems, with their superior heat dissipation efficiency and stability, have become a key technology for ensuring the normal operation of servers.

[0003] With the improvement of server computing power, liquid cooling has become the mainstream heat dissipation solution due to its high heat dissipation efficiency. As an auxiliary heat dissipation component of the liquid cooling system, the cooling fan accelerates the heat dissipation of the radiator through piezoelectric fans, and its speed control directly affects the system's energy consumption and heat dissipation effect.

[0004] In existing technologies, some cooling fan speed control devices rely solely on a single temperature sensor without considering coolant flow and pressure parameters. When blockage in the liquid cooling pipes leads to a decrease in flow or abnormal pressure, relying solely on temperature feedback will delay the speed control response, potentially causing short-term overheating of the chip and affecting server stability. Utility Model Content

[0005] The purpose of this invention is to address the problem that some existing cooling fan speed control devices rely solely on a single temperature sensor without considering coolant flow and pressure parameters. When the liquid cooling pipes are blocked, causing a decrease in flow or abnormal pressure, relying solely on temperature feedback will delay the speed control response, potentially leading to short-term overheating of the chip and affecting server stability. Therefore, this invention proposes an intelligent speed control device for server liquid cooling system cooling fans.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: It includes a main body and a heat dissipation mechanism, the heat dissipation mechanism being disposed on one side of the main body; the main body includes a server body, with a display panel and an audible and visual alarm mounted on the front of the server body; the heat dissipation mechanism includes a cold plate, a circulation pipe being disposed on one side of the cold plate, a flow sensor being fixedly installed on the outer wall of the circulation pipe, the detection end of the flow sensor penetrating the interior of the circulation pipe, an inlet pipe and an outlet pipe being respectively connected to the inlet pipe and outlet pipe, temperature sensors being disposed on the outer walls of the inlet pipe and outlet pipe and on one side of the cold plate, the detection ends of the two temperature sensors penetrating the inlet pipe and outlet pipe respectively, a pressure sensor being disposed on the outer wall of the outlet pipe, a heat dissipation fan box being disposed on the side of the cold plate away from the circulation pipe, a servo motor being fixedly installed on the inner wall of the heat dissipation fan box, a cooling fan being fixedly installed on the output end of the servo motor, and the display panel being signal-connected to the audible and visual alarm, the flow sensor, the temperature sensor, the pressure sensor, and the servo motor.

[0007] Preferably, the interior of the heat dissipation box has a through hole, and an air filter is fixedly installed inside the through hole.

[0008] Preferably, a sealing ring is fixedly connected to one end of both the water inlet pipe and the water outlet pipe, and a bolt is inserted through the interior of the heat dissipation box.

[0009] Preferably, the server body has a pipe installation groove inside.

[0010] Preferably, heat dissipation mesh plates are symmetrically arranged on both sides of the server body, and the heat dissipation mesh plates are arranged at both ends of the pipe installation groove.

[0011] Preferably, a low-pass filter is fixedly installed on one side of the server body.

[0012] Preferably, the circulation pipe is disposed inside the pipe mounting groove, and the flow sensor is disposed inside the server body.

[0013] Preferably, the heat dissipation box is located on one side of the server body, and the bolt is threadedly connected to the heat dissipation box and the server body.

[0014] Preferably, both the inlet pipe and the outlet pipe penetrate the server body, and one of the temperature sensors is fixedly installed on one side of the server body.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by applying multiple monitoring modules, the flow rate, pressure, and coolant temperature in the liquid cooling system at each stage are monitored. Combined with multi-parameter speed regulation of temperature, flow rate, and pressure, the response lag caused by a single parameter is avoided, ensuring that the liquid cooling system maintains the best heat dissipation effect under different operating conditions. Furthermore, the PID algorithm is applied to dynamically adjust the fan speed, reducing the speed under low load to reduce fan energy consumption and meet the green energy-saving requirements of servers.

[0017] 2. In this utility model, temperature sensors are installed inside the inlet pipe and outlet pipe and on one side of the cold plate to monitor the initial temperature of the coolant when it enters the system, the temperature after absorbing heat from the server, and the heat exchange effect between the cold plate and the server chip, providing more comprehensive temperature monitoring. Combined with flow sensor monitoring to determine pipe blockage, and pressure sensor monitoring the internal pressure of the system, a PID algorithm is introduced to dynamically adjust the fan speed after comparing multiple factors. Attached Figure Description

[0018] Figure 1 This utility model provides a three-dimensional structural diagram of an intelligent speed control device for a server liquid cooling system cooling fan;

[0019] Figure 2 This utility model provides a schematic diagram of the disassembly mechanism of an intelligent speed control device for a server liquid cooling system cooling fan;

[0020] Figure 3 This utility model provides a three-dimensional structural diagram of the main mechanism in an intelligent speed control device for a server liquid cooling system cooling fan.

[0021] Figure 4 This utility model provides a three-dimensional structural diagram of the heat dissipation mechanism in an intelligent speed control device for a server liquid cooling system's cooling fan.

[0022] Figure 5 This utility model provides a schematic diagram of the disassembled structure of the heat dissipation mechanism in an intelligent speed control device for a server liquid cooling system's cooling fan.

[0023] Legend: 1. Main structure; 101. Server body; 102. Pipe mounting groove; 103. Heat dissipation mesh plate; 104. Display panel; 105. Audible and visual alarm; 106. Low-pass filter; 2. Heat dissipation mechanism; 201. Cold plate; 202. Circulation pipe; 203. Flow sensor; 204. Water inlet pipe; 205. Water outlet pipe; 206. Temperature sensor; 207. Pressure sensor; 208. Heat dissipation box; 209. Servo motor; 210. Cooling fan; 211. Through hole; 212. Air filter; 213. Sealing ring; 214. Bolt. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1: As Figures 1-5 As shown, this utility model provides an intelligent speed control device for a server liquid cooling system cooling fan, including: a main body 1 and a heat dissipation mechanism 2, the heat dissipation mechanism 2 being disposed on one side of the main body 1; the main body 1 includes a server body 101, and a display panel 104 and an audible and visual alarm 105 are mounted on the front of the server body 101; the heat dissipation mechanism 2 includes a cold plate 201, a circulation pipe 202 being disposed on one side of the cold plate 201, a flow sensor 203 being fixedly mounted on the outer wall of the circulation pipe 202, the detection end of the flow sensor 203 penetrating the interior of the circulation pipe 202, and the inlet and outlet ends of the circulation pipe 202 being connected to an inlet pipe 204 and an outlet pipe 205, respectively. 5. Temperature sensors 206 are installed on the outer walls of the water inlet pipe 204 and the water outlet pipe 205, and on one side of the cold plate 201. The detection ends of the two temperature sensors 206 pass through the water inlet pipe 204 and the water outlet pipe 205 respectively. A pressure sensor 207 is installed on the outer wall of the water outlet pipe 205. A heat dissipation box 208 is installed on the side of the cold plate 201 away from the circulation pipe 202. A servo motor 209 is fixedly installed on the inner wall of the heat dissipation box 208. A cooling fan 210 is fixedly installed on the output end of the servo motor 209. The display panel 104 is connected to the audible and visual alarm 105, the flow sensor 203, the temperature sensor 206, the pressure sensor 207 and the servo motor 209.

[0027] The overall effect of Embodiment 1 is as follows: by placing the circulation pipe 202 on one side of the cold plate 201 and the heat dissipation box 208 on the other side of the cold plate 201, the server chip is cooled by liquid cooling while the cooling fan 210 assists the cold plate 201 in cooling. A flow sensor 203 is installed on the outer wall of the circulation pipe 202, and the detection end of the flow sensor 203 is placed inside the circulation pipe 202. The flow sensor 203 monitors the coolant flow in real time. When the flow value is less than the preset value, it indicates that the pipe may be blocked, and the fan speed needs to be increased to enhance heat dissipation. A pressure sensor is installed on the outlet pipe 205. Sensor 207 monitors the internal pressure of the system. When the pressure is abnormal, it triggers the audible and visual alarm 105 to issue a warning and reduce the fan load. Temperature sensors 206 are installed inside the water inlet pipe 204 and the water outlet pipe 205, and on one side of the cold plate 201. The temperature sensor 206 installed on the water inlet pipe 204 reflects the initial temperature of the coolant entering the system, the temperature sensor 206 installed on the water outlet pipe 205 reflects the temperature after absorbing heat from the server, and the temperature sensor 206 installed on the cold plate 201 directly reflects the heat exchange effect between the cold plate 201 and the server chip. The combination of these three sensors ensures comprehensive temperature monitoring.

[0028] Example 2: As Figures 1-5 As shown, a through hole 211 is provided inside the heat dissipation box 208, and an air filter 212 is fixedly installed inside the through hole 211; a sealing ring 213 is fixedly connected to one end of the water inlet pipe 204 and the water outlet pipe 205; a bolt 214 is inserted through the heat dissipation box 208; a pipe mounting groove 102 is provided inside the server body 101; heat dissipation mesh plates 103 are symmetrically arranged on both sides of the server body 101, and the heat dissipation mesh plates 103 are located at both ends of the pipe mounting groove 102; a low-pass filter 106 is fixedly installed on one side of the server body 101; a circulation pipe 202 is located inside the pipe mounting groove 102; a flow sensor 203 is located inside the server body 101; the heat dissipation box 208 is located on one side of the server body 101, and the bolt 214 is threadedly connected to the heat dissipation box 208 and the server body 101; both the water inlet pipe 204 and the water outlet pipe 205 pass through the server body 101; a temperature sensor 206 is fixedly installed on one side of the server body 101.

[0029] The overall effect of Embodiment 2 is as follows: by setting a pipe mounting groove 102 inside the server body 101, the circulation pipe 202 is installed inside the pipe mounting groove 102. A cold plate 201 is set on one side of the circulation pipe 202, and a heat dissipation box 208 is set on one side of the cold plate 201. Bolts 214 are used to thread the heat dissipation box 208 and the server body 101, thus installing the heat dissipation mechanism 2 on one side of the server body 101. The inlet and outlet ends of the circulation pipe 202 are connected to the inlet pipe 204 and the outlet pipe 205, respectively, to facilitate connection with external pipes and realize the circulation of cooling water inside the server to achieve the effect of liquid cooling. A sealing ring 213 is set at one end of the inlet pipe 204 and the outlet pipe 205 to improve the connection effect at the sealing point when connected with external pipes and avoid leakage. Then, a through hole 211 is made inside the heat dissipation box 208, and an air filter 212 is fixedly installed inside the through hole 211. The air filter 212 is used to filter the air entering the liquid cooling system to prevent dust and other debris from adhering to the surface of the cold plate 201 and affecting the heat dissipation effect of the cooling fan 210 on the cold plate 201. Then, a servo motor 209 is installed inside the heat dissipation box 208, and the cooling fan 210 is fixedly connected to the output end of the servo motor 209. The servo motor 209 drives the cooling fan 210 to rotate to assist the cold plate 201 in heat dissipation. The dissipated heat is discharged by the heat dissipation mesh plate 103.

[0030] Working Principle: In use, the device installs a circulation pipe 202 inside a pipe mounting groove 102 within the server body 101. A cold plate 201 is placed on one side of the circulation pipe 202, and a cooling fan box 208 is placed on one side of the cold plate 201. Bolts 214 are used to thread the cooling fan box 208 and the server body 101, thus installing the cooling mechanism 2 on one side of the server body 101. The inlet and outlet ends of the circulation pipe 202 are connected to an inlet pipe 204 and an outlet pipe 205, respectively, facilitating connection to external pipes and enabling the circulation of cooling water within the server to achieve liquid cooling. Sealing rings 213 are installed at one end of both the inlet pipe 204 and the outlet pipe 205 to improve the sealing effect when connected to external pipes, preventing leakage. Then, a through hole 211 is made inside the heat dissipation box 208, and an air filter 212 is fixedly installed inside the through hole 211. The air filter 212 is used to filter the air entering the liquid cooling system to prevent dust and other debris from adhering to the surface of the cold plate 201 and affecting the heat dissipation effect of the cooling fan 210 on the cold plate 201. Then, a servo motor 209 is installed inside the heat dissipation box 208, and the cooling fan 210 is fixedly connected to the output end of the servo motor 209. The servo motor 209 drives the cooling fan 210 to rotate to assist the cold plate 201 in heat dissipation.

[0031] For intelligent control of the cooling fan 210 speed, temperature sensors 206 are installed inside the inlet pipe 204, the outlet pipe 205, and on one side of the cold plate 201. The temperature sensor 206 on the inlet pipe 204 reflects the initial temperature of the coolant entering the system, the temperature sensor 206 on the outlet pipe 205 reflects the temperature after absorbing heat from the server, and the temperature sensor 206 on the cold plate 201 directly reflects the heat exchange effect between the cold plate 201 and the server chips. The combination of these three sensors ensures comprehensive temperature monitoring. Furthermore, a flow sensor 203 is installed on the circulation pipe 202 to monitor the coolant flow rate in real time. When the flow rate is less than a preset value, it indicates that the pipe may be blocked, requiring an increase in fan speed to enhance heat dissipation. A pressure sensor 207 is installed on the outlet pipe 205 to monitor the system pressure. When the pressure is abnormal, an audible and visual alarm 105 is triggered to issue a warning and reduce the fan load. Then, the display panel 104 receives and analyzes the detection values, and combines multiple parameters such as temperature, flow rate and pressure to adjust the speed, avoiding response lag caused by a single parameter, and ensuring that the liquid cooling system maintains the best heat dissipation effect under different operating conditions. Then, the PID algorithm is applied to dynamically adjust the fan speed, and the speed is reduced when the load is low to reduce fan energy consumption and meet the green energy-saving requirements of the server.

[0032] The wiring diagrams for the display panel 104, audible and visual alarm 105, flow sensor 203, temperature sensor 206, pressure sensor 207, and servo motor 209 in this utility model are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring arrangements for the display panel 104, audible and visual alarm 105, flow sensor 203, temperature sensor 206, pressure sensor 207, and servo motor 209 will not be explained in detail.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A smart speed control device for a server liquid cooling system's heat dissipation fan, characterized in that, include: The main body (1) and the heat dissipation mechanism (2) are provided on one side of the main body (1); The main body (1) includes a server body (101), and a display panel (104) and an audible and visual alarm (105) are installed on the front of the server body (101). The heat dissipation mechanism (2) includes a cold plate (201). A circulation pipe (202) is provided on one side of the cold plate (201). A flow sensor (203) is fixedly installed on the outer wall of the circulation pipe (202). The detection end of the flow sensor (203) penetrates the interior of the circulation pipe (202). The inlet and outlet ends of the circulation pipe (202) are respectively connected to an inlet pipe (204) and an outlet pipe (205). Temperature sensors (206) are provided on the outer walls of the inlet pipe (204) and the outlet pipe (205) and on one side of the cold plate (201). The detection of the two temperature sensors (206) is as follows: The inlet pipe (204) and outlet pipe (205) are respectively passed through the end. A pressure sensor (207) is provided on the outer wall of the outlet pipe (205). A heat dissipation box (208) is provided on the side of the cold plate (201) away from the circulation pipe (202). A servo motor (209) is fixedly installed on the inner wall of the heat dissipation box (208). A cooling fan (210) is fixedly installed on the output end of the servo motor (209). The display panel (104) is connected to the sound and light alarm (105), flow sensor (203), temperature sensor (206), pressure sensor (207) and servo motor (209) for signal connection.

2. The intelligent speed control device for a server liquid cooling system cooling fan according to claim 1, characterized in that: The heat dissipation box (208) has a through hole (211) inside, and an air filter (212) is fixedly installed inside the through hole (211).

3. The intelligent speed control device for a server liquid cooling system cooling fan according to claim 1, characterized in that: A sealing ring (213) is fixedly connected to one end of the water inlet pipe (204) and the water outlet pipe (205), and a bolt (214) is inserted through the interior of the heat dissipation box (208).

4. The intelligent speed control device for a server liquid cooling system cooling fan according to claim 1, characterized in that: The server body (101) has a pipe installation groove (102) inside.

5. The intelligent speed control device for a server liquid cooling system cooling fan according to claim 4, characterized in that: The server body (101) is symmetrically provided with heat dissipation mesh plates (103) on both sides, and the heat dissipation mesh plates (103) are located at both ends of the pipe installation groove (102).

6. The intelligent speed control device for a server liquid cooling system cooling fan according to claim 1, characterized in that: A low-pass filter (106) is fixedly installed on one side of the server body (101).

7. The intelligent speed control device for a server liquid cooling system cooling fan according to claim 4, characterized in that: The circulation pipe (202) is located inside the pipe mounting groove (102), and the flow sensor (203) is located inside the server body (101).

8. The intelligent speed control device for a server liquid cooling system cooling fan according to claim 3, characterized in that: The heat dissipation box (208) is located on one side of the server body (101), and the bolt (214) is threadedly connected to the heat dissipation box (208) and the server body (101).

9. The intelligent speed control device for a server liquid cooling system cooling fan according to claim 1, characterized in that: The inlet pipe (204) and outlet pipe (205) both penetrate the server body (101), and a temperature sensor (206) is fixedly installed on one side of the server body (101).

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