Introduction to the Cooling System   

1、System Functional Concept

The cooling system is a device to cool heat-generating units. It achieves cooling effect by water-cooled forced convection heat transfer. It can cool the high-temperature coolant flowing through the heat-generating units to a lower temperature.

2、Operating Principle

The cooling system is equipped with two circuit interfaces, which form a circulation loop after connection with the heat-generating units. The system is equipped with a water pump to provide power for coolant circulation. Driven by the water pump, the coolant in the radiator and expansion tank flows into the heat-generating units, absorbs heat, and rises in temperature. After the high-temperature coolant enters the radiator, the temperature sensor at the radiator inlet detects the elevated coolant temperature and controls the fan to operate at rotation. The fan draws air across the radiator to cool the high-temperature coolant to a lower temperature. The low-temperature coolant then flows out of the radiator and re-enters the heat-generating units under the action of the water pump. Through continuous circulation, the coolant continuously removes heat from the heat-generating units and dissipates the heat through the radiator.

Schematic Diagram of Cooling System Operating Principle

3、Technical Features

The cooling system integrates all components of the heat dissipation system into one cabinet. Key components of the cooling system include the radiator assembly, expansion tank assembly, fan and motor assembly, water pump and piping assembly,、

housing and bracket assembly, and control module.。

1）Equipped with cooling capacity adjustment function, monitoring and alarm functions (liquid level, flow, and temperature), data and fault storage functions, and protection functions (pressure protection, motor overheat protection, and water pump operation protection).

2）Temperature sensors are installed at the water inlet and outlet to monitor inlet and outlet water temperatures and control high-speed or low-speed fan operation, thereby achieving cooling capacity adjustment and providing high-temperature alarm functions.

3）A flow regulating valve is installed to achieve adjustable flow.

4）The radiator features anodizing treatment and offers strong corrosion resistance.

5）The control unit adopts a modular design. Input and output modules can be added as required, and the unit is equipped with an RJ45 communication debug interface.

Cooling System Structure Schematic Diagram

4、Liquid Cooling System Performance Parameters

5、Product Application Scope

The cooling system can provide cooling for equipment such as traction motors, inverters and auxiliary inverters.

6、 Project References

Wuhu Monorail Project.