As electric vehicles become more popular, the need for efficient and fast charging solutions is more important than ever. In general, air cooling is the preferred solution. Its advantages include simplicity and low cost, but it cannot handle the heat generated by high-power EV chargers. Water-based liquid cooling systems can dissipate heat up to 10 times more efficiently, and other liquids can further improve cooling efficiency. Therefore, liquid cooling is receiving more and more attention as the most efficient solution available.

High Power EV Battery Chargers Need Liquid Cooling

Liquid cooling is a technology that has been used in computers for many years to dissipate heat from high-performance components such as CPUs and GPUs. The principle is simple: a liquid coolant is circulated through channels or pipes that are in contact with the components, absorbing heat and transferring it away. In the context of electric vehicle chargers, liquid cooling can be used to manage the heat generated by the charging process. When a battery is charged, it generates heat, which can reduce the efficiency of the charging process and potentially damage the battery. By using liquid cooling, the heat can be quickly dissipated, allowing for faster and more efficient charging.

Connector internal liquid cooling system

The liquid cooling process for electric vehicle chargers typically involves a closed-loop system. The charger is equipped with a heat exchanger that is connected to a cooling system, which can be either air-cooled or liquid-cooled. The heat generated during charging is transferred to the heat exchanger, which then transfers it to the coolant. The coolant is typically a mixture of water and a coolant additive, such as glycol or ethylene glycol. The coolant circulates through the charger’s cooling system, absorbing heat and transferring it to a radiator or heat exchanger. The heat is then dissipated into the air or transferred to a liquid cooling system, depending on the design of the charger.

In addition to improving charging efficiency, liquid-cooled electric vehicle chargers can also help to extend the lifespan of the charger and the battery. By managing the heat generated during charging, the components are subjected to less thermal stress, which can reduce wear and tear and extend their operational life.

As an innovative and forward-thinking company, SETEC POWER has developed high power DC chargers that can all be customized with liquid cooling capabilities. Our charger is equipped with a state-of-the-art closed-loop cooling system that uses a specially formulated coolant to manage heat and ensure optimal charging performance. Contact us today to learn more about this exciting technology and how it can benefit you and your electric vehicle.