Water-cooling heat dissipation system capable of automatically adjusting flow based on water temperature
By introducing temperature sensors and controllers into the water cooling system, the pump speed is dynamically adjusted, solving the energy waste and noise problems caused by the fixed flow rate under different load conditions in traditional water cooling systems. This achieves efficient and quiet heat dissipation and extends the pump's lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ROLLARY DIGITAL TECH SHANGHAI
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional water-cooled heat dissipation systems cannot dynamically adjust the coolant flow under different load conditions, resulting in energy waste, noise interference, and shortened pump life.
By combining a temperature sensor and a controller, the water pump speed is adjusted in real time according to the coolant temperature, forming an automatic flow control system based on water temperature. This system includes a water cooling head, a water pump, a radiator, a water tank, and a temperature sensor, and uses a variable-speed water pump to achieve dynamic flow regulation.
It improves heat dissipation efficiency, reduces noise, extends the service life of the water pump, and reduces the overall energy consumption and maintenance costs of the system.
Smart Images

Figure CN224139328U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water cooling technology, specifically a water cooling system based on automatic flow rate adjustment according to water temperature. Background Technology
[0002] In today's era of rapid technological development, various electronic devices such as computers, servers, and industrial equipment generate a large amount of heat during operation. If this heat cannot be dissipated in a timely and effective manner, the performance of the equipment will be severely affected, and it may even lead to equipment damage. Water cooling systems have been widely used in the above-mentioned fields due to their efficient heat dissipation capabilities. They mainly achieve the purpose of heat dissipation by circulating coolant to remove the heat generated by the equipment.
[0003] However, traditional water-cooled heat dissipation systems have many shortcomings. They typically use a water pump with a fixed speed to drive the coolant circulation. When the system load is low, the coolant flow rate is fixed, which undoubtedly wastes energy. When the system load is high, the fixed flow rate is difficult to meet the heat dissipation demand, causing the equipment temperature to be too high, which seriously affects the stability and service life of the equipment. In addition, the continuous high-speed operation of the water pump not only generates a lot of noise, interfering with the normal use of the user, but also causes the water pump to operate under high load for a long time, which greatly shortens the service life of the water pump. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model provides a water cooling heat dissipation system based on automatic water temperature-controlled flow rate, comprising:
[0005] A water cooling head is installed on the heating element to absorb the heat from the heating element;
[0006] A water pump is used to drive the circulation of coolant.
[0007] A radiator is used to dissipate heat from the coolant into the air;
[0008] Water tank, used to store coolant;
[0009] A temperature sensor, installed on the outlet side of the radiator, is used to detect the temperature of the coolant;
[0010] The controller, connected to the temperature sensor and the water pump, receives signals from the temperature sensor and controls the speed of the water pump according to a preset temperature threshold.
[0011] The water cooling head, water pump, radiator, and water tank are connected in sequence by water cooling pipes to form a coolant circulation path; the controller is connected to the water pump and temperature sensor by circuitry to achieve signal transmission.
[0012] In a preferred embodiment of this utility model, the controller is a microcontroller or a PLC.
[0013] As a preferred embodiment of this utility model, the water pump is a speed-regulating water pump.
[0014] In a preferred embodiment of this invention, the temperature sensor is a thermistor or a thermocouple.
[0015] As a preferred embodiment of this utility model, the water-cooled pipe is made of silicone material that is corrosion-resistant, high-temperature resistant and has good thermal conductivity.
[0016] As a preferred embodiment of this utility model, the controller is preset with an upper temperature threshold and a lower temperature threshold.
[0017] By adopting the above technical solution, this utility model has the following beneficial effects:
[0018] 1. Improve heat dissipation efficiency: It can dynamically and precisely adjust the coolant flow rate according to the actual heat dissipation needs. When the system load is high, the flow rate is increased to ensure the heat dissipation effect; when the system load is low, the flow rate is reduced to avoid energy waste and always maintain high-efficiency heat dissipation performance.
[0019] 2. Reduced noise: The water pump does not need to maintain high-speed operation all the time. It only increases its speed when the heat dissipation demand is high, which effectively reduces the noise generated during operation and creates a quiet operating environment for users.
[0020] 3. Extend pump life: By reasonably adjusting the pump speed, the workload of the pump is reduced, and the wear of various pump components is reduced, thereby significantly extending the service life of the pump and reducing system maintenance costs.
[0021] 4. Simple structure and easy to implement: The system only needs to add two key components, a temperature sensor and a controller, to the existing water cooling system to achieve innovative functions. The overall structure is simple, the cost is low, and it is easy to promote and apply in actual production. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall system structure of this utility model.
[0023] In the diagram: 1. Water cooling head; 2. Water pump; 3. Controller; 4. Water tank; 5. Heat sink; 6. Temperature sensor. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Example 1
[0026] like Figure 1 As shown in the figure, a specific embodiment of the water cooling system based on automatic water temperature flow regulation according to this utility model includes key components such as a water cooling head 1, a water pump 2, a radiator 5, a water tank 4, a temperature sensor 6, and a controller 3.
[0027] Water block 1: Its main function is to fit tightly against the heating element and efficiently absorb the heat generated by the heating element during operation. It is the starting point for heat transfer.
[0028] Water pump 2: As the power source for the entire system's coolant circulation, it is responsible for driving the coolant to circulate continuously within the system, ensuring that heat can be carried away and transferred to the heat sink 5 in a timely manner;
[0029] Radiator 5: It plays an important role in dissipating the heat carried by the coolant into the surrounding air, reducing the temperature of the coolant through heat exchange, and preparing for the reuse of the coolant.
[0030] Water tank 4: Used to store coolant, ensuring sufficient coolant circulation within the system and maintaining stable system operation;
[0031] Temperature sensor 6: Installed on the outlet side of heat sink 5, it can monitor the temperature of the coolant flowing out of heat sink 5 in real time and accurately, and transmit the temperature signal to the controller 3 in a timely manner;
[0032] Controller 3: It is connected to both temperature sensor 6 and water pump 2. Its function is to receive the temperature signal from temperature sensor 6 and compare and analyze the signal with the preset temperature thresholds, such as the upper temperature threshold and the lower temperature threshold, and then accurately control the speed of water pump 2 based on the comparison results.
[0033] The water cooling head 1, water pump 2, radiator 5 and water tank 4 are connected in sequence by water cooling pipes to form a coolant circulation path; the controller 3 is connected to the water pump 2 and temperature sensor 6 by circuit to realize signal transmission.
[0034] In this embodiment, the controller 3 is a microcontroller. Microcontrollers have advantages such as small size, low cost, and powerful functions, which can meet the basic control requirements of the system.
[0035] Water pump 2 is a speed-regulating water pump, so that the speed can be flexibly adjusted according to the instructions of controller 3, thereby achieving precise control of coolant flow rate;
[0036] Temperature sensor 6 uses a thermistor, which is sensitive to temperature changes and has a fast response speed, enabling it to quickly and accurately detect the coolant temperature.
[0037] The water-cooled pipes are made of silicone material that is corrosion-resistant, high-temperature resistant, and has good thermal conductivity.
[0038] Example 2
[0039] The difference between this embodiment and embodiment 1 is that the controller 3 is a PLC. PLCs have the characteristics of high reliability, flexible programming, and easy expansion, and are suitable for application scenarios with high requirements for system stability and functional expandability.
[0040] Temperature sensor 6 uses a thermocouple, which has the advantages of high measurement accuracy and good stability, and is suitable for occasions with strict requirements for temperature measurement accuracy.
[0041] The working principle of this utility model is as follows: the temperature sensor 6 monitors the temperature of the coolant at the outlet side of the heat sink 5 at all times, and transmits the measured temperature signal to the controller 3 in real time.
[0042] Controller 3 performs a detailed comparison between the received temperature signal and the preset temperature threshold:
[0043] If the temperature is higher than the upper limit threshold, it indicates that the current system has a large heat dissipation demand. At this time, the controller 3 controls the water pump 2 to increase the coolant flow rate, thereby enhancing the heat dissipation capacity and reducing the equipment temperature in time.
[0044] If the temperature is below the lower threshold, it indicates that the system has a low heat dissipation requirement. Controller 3 then controls the water pump 2 to reduce the coolant flow rate, thereby saving energy.
[0045] If the temperature is between the upper and lower thresholds, it indicates that the current heat dissipation effect is good and the system is in a stable operating state. Controller 3 will keep the current speed of water pump 2 unchanged.
[0046] In this article, both the controller and the temperature sensor are existing finished products and are based on existing technology, so their specific structures and working principles will not be described in detail.
[0047] All components mentioned in this article are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.
[0048] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A water-cooled heat dissipation system based on automatic adjustment of flow according to water temperature, characterized in that, include: A water cooling head (1) is installed on the heating element to absorb the heat from the heating element; Water pump (2) is used to drive the circulation of coolant; Heat dissipation vent (5) is used to dissipate heat from the coolant into the air; Water tank (4), used to store coolant; Temperature sensor (6) is installed on the outlet side of heat sink (5) to detect the temperature of coolant; The controller (3) is connected to the temperature sensor (6) and the water pump (2) to receive the signal from the temperature sensor (6) and control the speed of the water pump (2) according to the preset temperature threshold. The water cooling head (1), water pump (2), radiator (5) and water tank (4) are connected in sequence by water cooling pipes to form a coolant circulation path; the controller (3) is connected to the water pump (2) and temperature sensor (6) by circuit to realize signal transmission.
2. The water-cooled heat dissipation system based on automatic flow adjustment according to water temperature of claim 1, characterized in that: The controller (3) is a microcontroller or a PLC.
3. The water-cooled heat dissipation system based on automatic flow adjustment according to water temperature of claim 1, characterized in that: The water pump (2) is a speed-regulating water pump.
4. The water-cooling heat dissipation system based on automatic flow adjustment according to water temperature of claim 1, characterized in that: The temperature sensor (6) is a thermistor or a thermocouple.
5. The water-cooled heat dissipation system based on automatic flow adjustment according to water temperature of claim 1, characterized in that: The water-cooled pipes are made of silicone material that is corrosion-resistant, high-temperature resistant, and has good thermal conductivity.
6. The water-cooled heat dissipation system based on automatic flow adjustment according to water temperature of claim 1, characterized in that: The controller (3) is preset with an upper temperature threshold and a lower temperature threshold.