Driving integrated liquid cooling system
By using a single motor to drive the cooling fan and liquid pump in the liquid cooling system, and by utilizing the cooperation of sensors and controllers, the problems of large size and complex control of the liquid cooling system were solved, achieving the effects of system miniaturization and simplified control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-04-07
AI Technical Summary
Existing liquid cooling systems are bulky and complex to control due to the separate power sources required.
A single motor drives the cooling fan and liquid cooling pump. By cooperating with temperature and differential pressure sensors and a controller, the speed of the cooling fan and liquid cooling pump can be dynamically adjusted, reducing the number of drive motors and simplifying the control logic.
This achieves a reduction in the size of the liquid cooling system, easier assembly, simpler control, and the ability to dynamically adjust the heat dissipation efficiency according to the characteristics of the cooling system.
Smart Images

Figure CN224098009U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid cooling system technical field especially relates to a drive integrated liquid cooling system. BACKGROUND
[0002] The liquid cooling system is a kind of heat dissipation system that heat source is cooled by the flow of liquid in pipeline.Liquid cooling system usually includes connecting pipeline, liquid cooling pump, radiator and heat exchange plate.Liquid cooling pump drives cooling liquid to circulate in connecting pipeline, cooling liquid absorbs the heat dissipated by heat source after passing through heat exchange plate, and then dissipates the absorbed heat to air in radiator, and heat dissipation fan blows air to radiator, accelerates air circulation, improves heat dissipation effect, to achieve the purpose of cooling and heat dissipation. Figure 1 As shown in the current liquid cooling system, power source is usually set for liquid cooling pump and heat dissipation fan respectively, so that the overall volume of liquid cooling system is large. UTILITY MODEL CONTENT
[0003] In view of the deficiencies in the prior art, the utility model aims at providing a drive integrated liquid cooling system, which uses one power source to drive heat dissipation fan and liquid cooling pump, reduces the volume of liquid cooling system and is easy to control.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A drive integrated liquid cooling system, comprising liquid cooling pump, radiator connected in sequence through circulation pipeline, and cooling liquid flows through heat source through circulation pipeline, the liquid cooling pump pumps cooling liquid to circulate between heat source and radiator,
[0006] The liquid cooling system further comprises motor, heat dissipation fan and controller, the heat dissipation fan is used to dissipate heat of the radiator, the heat dissipation fan and the liquid cooling pump share the motor as driving source, the motor is electrically connected with the controller,
[0007] The inlet position and outlet position of the radiator are provided with temperature sensor, and the temperature sensor is electrically connected with the controller.
[0008] Further, the motor is set as double-shaft motor.
[0009] Further, the inlet and outlet of the liquid cooling pump are provided with pressure difference sensor, and the pressure difference sensor is electrically connected with the controller.
[0010] Further, the radiator, heat dissipation fan, motor and liquid cooling pump are arranged in sequence, and the heat dissipation fan is installed on the side of the radiator.
[0011] The utility model has the advantages of:
[0012] 1. By integrating the cooling fan and liquid cooling pump into one unit and driving them with a single motor, a set of drive motors is reduced, resulting in a smaller product size and easier assembly;
[0013] 2. The controller only needs one drive interface to drive the entire liquid cooling system; the electrical connection from the controller to the cooling fan and liquid cooling pump can be reduced to a single motor drive harness, making electrical connection convenient;
[0014] 3. The relationship between fan speed and airflow, as well as the relationship between pump speed and flow rate, are fixed according to the characteristics of the cooling system. When it is necessary to adjust the heat dissipation efficiency of the liquid cooling system, only the output power of the motor needs to be controlled, which is simple. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a liquid cooling system in the prior art;
[0016] Figure 2 This is a schematic diagram of the flow path of the liquid cooling system in this utility model;
[0017] Figure 3 This is a schematic diagram showing the connection of the motor, cooling fan, and radiator in the liquid cooling system of this utility model;
[0018] Figure 4 This is a curve showing the relationship between heat dissipation efficiency, cooling fan airflow, and liquid cooling pump flow rate at the same rotation speed in this utility model.
[0019] Figure label:
[0020] 1. Liquid cooling pump; 2. Radiator; 3. Heat source; 4. Motor; 5. Cooling fan; 6. Temperature sensor; 7. Controller. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] like Figures 2-4 As shown, an integrated liquid cooling system according to this embodiment includes a liquid cooling pump 1 and a radiator 2 connected in sequence through a circulation pipeline. The circulation pipeline allows coolant to flow through a heat source 3. The liquid cooling pump 1 pumps coolant to circulate between the heat source 3 and the radiator 2. The coolant absorbs the heat generated by the heat source 3 and is pumped to the radiator 2. After being cooled by heat dissipation at the radiator 2, it is pumped back to the heat source 3. The circulation of coolant between the heat source 3 and the radiator 2 achieves the cooling of the heat source.
[0025] The liquid cooling system also includes a motor 4, a cooling fan 5, and a controller 7. The cooling fan 5 is used to dissipate heat from the radiator 2. The cooling fan 5 and the liquid cooling pump 1 share the motor 4 as their drive source. The motor 4 is electrically connected to the controller 7. In this application, a single motor 4 is used as the power source for both the cooling fan 5 and the liquid cooling pump 1, reducing the number of internal components in the liquid cooling system and simplifying its structure. The controller 7 only requires one drive interface to drive the entire liquid cooling system; the electrical connection from the controller 7 to the cooling fan 5 and the liquid cooling pump 1 can be reduced to a single motor 4 drive harness, making electrical connections convenient.
[0026] For the specific structure, please refer to [link / reference]. Figure 3 The motor 4 is a dual-axis motor, and the cooling fan 5 and liquid cooling pump 1 are located on both sides of the dual-axis motor 4. The circulation pipeline is not shown in the figure. The radiator 2, cooling fan 5, motor 4 and liquid cooling pump 1 are arranged in sequence, and the cooling fan 5 is installed on the side of the radiator 2.
[0027] Temperature sensors 6 are installed at both the inlet and outlet of the radiator 2, and both temperature sensors 6 are electrically connected to the controller 7. In this embodiment, the temperature sensors 6 can measure the inlet and outlet water temperatures, which can be used to determine the current heat source's heat and the radiator 2's heat dissipation status. When a high inlet water temperature is detected, it indicates that the heat source has a high temperature, requiring increased heat dissipation efficiency. At this time, the output power of the motor 4 is increased, and the pumping power of the liquid cooling pump 1 is increased, thereby increasing the cooling efficiency. Simultaneously, the speed of the cooling fan 5 is also increased, further increasing the cooling efficiency of the radiator 2, so that the heat carried by the coolant can be quickly dissipated, thus achieving the purpose of temperature control.
[0028] The heat exchange power of the existing cooling system during normal operation is approximately linearly related to the airflow of the cooling fan 5 and the flow rate of the liquid cooling pump 1. The controller 7, based on the temperature detected by the temperature sensor 6, synchronously adjusts the speeds of the cooling fan 5 and the liquid cooling pump 1 to achieve the required cooling power. By designing specific pump parameters according to the characteristics of the cooling system, the airflow of the cooling fan 5 and the pump flow rate can be made approximately linearly related to the temperature at the same rotational speed. Figure 4 The curve relationship means that only one motor 4 is needed to drive the cooling fan 5 and the liquid cooling pump 1 to meet the cooling drive function. The controller 7 does not need to calculate and control the fan speed and flow rate separately. It can obtain the control target of motor 4 based on the relationship between fan speed, flow rate and cooling efficiency, making the control logic simpler.
[0029] Furthermore, differential pressure sensors are installed at the inlet and outlet of the liquid cooling pump 1, and these sensors are electrically connected to the controller 7. The differential pressure sensors detect the pressure difference between the inlet and outlet to determine if the pressure difference exceeds the limit. If the pressure difference exceeds the limit, the sensor generates an over-limit signal to the controller 7, which then stops the motor 4. After manual inspection and troubleshooting, the motor can resume operation, thus preventing damage to the liquid cooling pump 1 due to excessive pressure.
[0030] Working principle:
[0031] During operation, the liquid cooling system uses controller 7 to control motor 4 to drive liquid cooling pump 1, causing the cooling medium to flow in the circulation pipes and carrying away the heat generated by the heat source. The cooling medium in the circulation pipes then exchanges heat with the air through cooling fan 5 and radiator 2. Controller 7 uses temperature sensor 6 to detect the inlet and outlet temperatures of radiator 2 and dynamically adjusts the speed of cooling fan 5 and liquid cooling pump 1 to achieve dynamic temperature control.
[0032] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application are also considered to be within the protection scope of the present application.
Claims
1. A drive-integrated liquid cooling system, characterized in that: It includes a liquid-cooled pump (1) and a radiator (2) connected in sequence through a circulation pipeline, and the coolant flows through the heat source through the circulation pipeline. The liquid-cooled pump (1) pumps the coolant to circulate between the heat source (3) and the radiator (2). The liquid cooling system also includes a motor (4), a cooling fan (5), and a controller (7). The cooling fan (5) is used to dissipate heat from the radiator (2). The cooling fan (5) and the liquid cooling pump (1) share the motor (4) as the drive source. The motor (4) is electrically connected to the controller (7). Temperature sensors (6) are installed at both the inlet and outlet of the radiator (2), and the temperature sensors (6) are electrically connected to the controller (7).
2. The integrated liquid cooling system according to claim 1, characterized in that: The motor (4) is configured as a dual-axis motor (4).
3. The integrated liquid cooling system according to claim 1, characterized in that: The liquid cooling pump (1) is equipped with differential pressure sensors at its inlet and outlet, and the differential pressure sensors are electrically connected to the controller (7).
4. The integrated liquid cooling system according to claim 1, characterized in that: The radiator (2), cooling fan (5), motor (4) and liquid cooling pump (1) are arranged in sequence, and the cooling fan (5) is installed on the side of the radiator (2).