Cooling Method Of Liquid Cold Plate

Liquid cooling can significantly increase the thermal conductivity compared to gas cooling. For power electronic devices with high power density, liquid cooling is a good choice. cold plate cooling system use a circulating pump to ensure that the coolant circulates between the heat source and the cold source to exchange heat.

Liquid cold plate is a product with extremely high heat dissipation efficiency in water-cooled radiators, which is equal to 100-300 times the heat transfer coefficient of natural air cooling. Replacing the air-cooled radiator with a water-cooled radiator can greatly increase the capacity of the device.

However, due to the poor insulation of ordinary water, the impurity ions in the water will cause electrical corrosion and leakage under high voltage. Only at low voltage can ordinary water cooling be used. In order for the above cold plate cooling system to enter the field of high-voltage and high-power power electronics, it is necessary to solve the two major problems of the purity of the cooling water and the reliability and corrosion of the system during long-term operation, and the water cooling method requires water circulation and processing equipment, which is complicated.

However, since the cold plate cooling system has obvious advantages in terms of cooling effect and environmental impact, liquid cold plate manufacturers have vigorously developed liquid cold plates in recent years to solve the problems encountered and make liquid cold plates widely used in high-power products. .