Liquid cooling control system and control method thereof
Patent Information
- Authority / Receiving Office
- TW · TW
- Patent Type
- Patents
- Current Assignee / Owner
- LITE ON TECH CORP
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-01
Smart Images
Figure TWG2TB001904132_001 
Figure TWG2TB001904132_002 
Figure TWG2TB001904132_003
Abstract
Claims
1. A liquid cooling control system, connected to an external cooling device, the liquid cooling control system comprising: A storage tank for storing a coolant; A first liquid line connects to the external cooling device and provides coolant; A second liquid line receives coolant returned from the external cooling device; a radiator has an inlet end and an outlet end, the inlet end being connected to the second liquid line and guiding the returned coolant into the heat dissipation pipe inside the radiator, and the outlet end discharging the cooled coolant, the outlet end extending with the heat dissipation pipe connecting to the liquid reservoir; a first circulation motor connected to the liquid reservoir and capable of driving the liquid in the liquid reservoir to flow to the first liquid line; an electric fan; a first temperature sensor disposed in the heat dissipation pipe, sensing the temperature of the coolant in the heat dissipation pipe and generating a first temperature sensing signal; and a control device; wherein the first temperature sensor transmits the first temperature sensing signal to the control device, and the control device controls the speed of the electric fan according to the first temperature sensing signal.
2. The liquid cooling control system as claimed in claim 1, wherein the control device includes a first PID (Proportional-Integral-Derivative) control module that calculates the fan speed based on the first temperature sensing signal and a sensor target temperature.
3. The liquid cooling control system as described in claim 2 further includes a second temperature sensor disposed in the first liquid pipeline to sense the temperature of the coolant in the first liquid pipeline and generate a second temperature sensing signal.
4. The liquid cooling control system as described in claim 3, wherein the control device further includes a second PID control module for calculating the sensor target temperature based on the second temperature sensing signal and a water supply target temperature.
5. The liquid cooling control system as described in claim 1, wherein a first check valve is provided between the first circulating motor and the first liquid pipeline to prevent coolant backflow.
6. The liquid cooling control system as described in claim 1, wherein a return water temperature sensor is provided on the second liquid line to sense the coolant temperature at the second liquid line.
7. The liquid cooling control system as described in claim 1, wherein the radiator has heat dissipation fins.
8. The liquid cooling control system as described in claim 1 further includes a second circulating motor, which is connected in parallel with the first circulating motor, and the second circulating motor is connected to the liquid storage tank and can drive the liquid in the liquid storage tank to flow to the first liquid pipeline.
9. The liquid cooling control system as described in claim 8, wherein a first check valve is provided between the first circulating motor and the first liquid line to prevent coolant backflow, and a second check valve is provided between the second circulating motor and the first liquid line to prevent coolant backflow.
10. A liquid cooling control method for controlling a liquid cooling system connected to an external cooling device, the liquid cooling system including a storage tank, a first liquid pipeline, a second liquid pipeline, a radiator, a first circulation motor, and an electric fan, the storage tank for storing coolant, the first liquid pipeline connected to the external cooling device and providing coolant, the second liquid pipeline receiving coolant returned from the external cooling device, the radiator having an inlet end and an outlet end, the inlet end connected to the second liquid pipeline and guiding the returned coolant into a heat dissipation pipeline inside the radiator, and discharging the cooled coolant from the outlet end, the outlet end extending into the heat dissipation pipeline connected to the storage tank, the first circulation motor connected to the storage tank and capable of driving the liquid in the storage tank to flow to the first liquid pipeline, the liquid cooling control method including the following steps: sensing the temperature of the coolant in the heat dissipation pipeline through a first temperature sensor and generating a first temperature sensing signal; The first temperature sensing signal and a sensor target temperature are input into a first PID (Proportional-Integral-Derivative) control module; and the first PID control module calculates the speed of the electric fan based on the first temperature sensing signal and the sensor target temperature.
11. The liquid cooling control method as described in claim 10, wherein the liquid cooling control method further comprises: The temperature of the coolant in the first liquid pipeline is sensed by a second temperature sensor, and a second temperature sensing signal is generated.
12. The liquid cooling control method as described in claim 11, wherein the liquid cooling control method further comprises: The second temperature sensing signal and a target water supply temperature are input into a second PID control module; The second PID control module calculates the target temperature of the sensor based on the second temperature sensing signal and the target water supply temperature.