Liquid cooled split charging terminals have a more sophisticated internal structure than traditional air-cooled chargers, especially with circulating liquid cooling systems and split cabinet layouts, which require standardized, regular maintenance to ensure long-term stable operation and high charging efficiency. Different from air-cooled piles that mainly focus on dust cleaning and fan inspection, the maintenance of liquid cooled equipment centers on cooling circuit inspection, terminal appearance check, power cabinet operation status, and intelligent system debugging.
First of all, regular inspection of the liquid cooling circulation system is the core maintenance item. Maintenance personnel need to regularly check the cooling liquid capacity, ensure no liquid leakage at pipeline joints, charging gun cables and power module interfaces. It is necessary to monitor the coolant concentration and cleanliness, replace aging coolant on schedule, and avoid pipeline blockage or poor heat dissipation caused by impurities and precipitation. Meanwhile, inspect the sealing performance of the entire liquid cooling loop to prevent dust, moisture and air from entering the closed circulation system, which may cause heat dissipation failure or internal component corrosion.
Secondly, daily appearance and safety inspection of the split charging terminals is essential. Staff should clean the surface dust, oil stains and water stains of the charging terminal, charging gun and cable regularly, keep the charging interface dry and clean, and check for pin oxidation, looseness or abrasion. In addition, inspect the grounding device, emergency stop button and waterproof and dustproof rubber seals to ensure all safety accessories are intact and effective. For the centralized power cabinet, regular detection of operating temperature, running noise and module working status is required to eliminate hidden dangers such as overheating and unstable power output in advance.
Furthermore, regular system debugging and fault recording are indispensable. Maintenance workers need to connect the background system to check charging data, dynamic power allocation status and protection function sensitivity, test overcurrent, over-temperature and liquid leakage protection functions regularly. It is also necessary to check the heat dissipation effect under high-load operation, ensure the liquid cooling system can quickly take away heat during ultra-high power charging, and maintain stable output performance. Scientific and standardized maintenance can effectively reduce equipment failure rate, avoid abnormal shutdowns, greatly extend the service life of liquid cooled split charging equipment, and ensure long-term efficient and safe operation of the charging station.
