High-power charging (HPC), which is used in fast-charging systems for electromobility applications, enables the extensive charging of the lithium-ion battery of an electric vehicle within just a few minutes. Once charged, the vehicle has once again a range of several hundred kilometres.
However, the high charging current that is used for high-power charging generates a lot of heat so that the charging station and, in particular, the charging cable require efficient cooling. This is due to the fact that the cable cross-section is restricted in order to ensure the proper handling of the charging cable and to prevent it from being too stiff. As a result, efficient cooling of the thin charging cables is absolutely essential for high-power charging.
The enormous time savings that can be realised with cooled fast-charging systems is a crucial factor for ensuring acceptance among the users of electric vehicles. Another important factor is that, thanks to a reliable cooling system, the safety and handling of the charging system is not compromised compared to other charging systems.
technotrans offers a wide range of concepts concerning cable cooling solutions for charging stations for high-power charging. This includes actively as well as passively cooled charging cable cooling modules with a high level of compactness for easy integration into the charging stations. The passive cooling modules cool the cooling medium against the ambient air, while a compressor-based refrigeration unit provides the required refrigerating capacity in the case of the active cooling modules. The desired temperature of the charging cable and connector is realised by the permanent, customisable circulation of the cooling medium.