Electric vehicles, as a new type of vehicle, are driven by batteries and achieve zero emissions. It has unparalleled advantages in alleviating energy crises and protecting the environment compared to traditional gasoline vehicles. Due to the fact that electric vehicles are driven by batteries, it is necessary to rely on charging devices to charge the power battery in the electric vehicle when the energy consumption of the electric vehicle battery reaches a certain level, in order to meet the cyclic use of the electric vehicle. In this way, the charging device becomes an important component of the use of electric vehicles. Due to the higher power and current of charging devices compared to other household appliances, most charging devices are installed in public places. The safe use of charging devices by electric vehicle charging station manufacturers is a common concern for all electric vehicle manufacturers, owners, and owners. The safety and stability of the charging device mainly depend on its safety and stability design.
1. Introduction to Safety Standards
Electric vehicle charging station manufacturer: In the entire iec61851 standard system, it covers requirements such as anti electric shock protection, prevention of high-energy arcs, prevention of overheating, and prevention of mechanical hazards. Among numerous protection requirements, electric shock protection is a more basic and important form of protection, as the potential risk of electric shock can lead to fire and other composite hazards that cannot be seen, smelled, and perceived in advance. Therefore, The IEC standard requires charging devices to consider these risks in their design in order to minimize the probability of these risks. This mainly discusses the requirements for electric shock protection of charging devices in the iec61851 series and GB series.
2. Analyzing the requirements for electric shock protection of charging piles based on standards
Due to the fact that the charging stations of electric vehicle manufacturers need to be connected to the electric vehicle during operation, the charging stations should not only have their own anti electric shock protection measures, but also need to test the safety and stability of the electric vehicle. Once the insulation layer of an electric vehicle is found to be damaged, the power should be immediately cut off. Therefore, after connecting the charging cable of the charging station to the charging interface of the electric vehicle, it is necessary to confirm that it is fully connected and continue to check whether the grounding wire of the electric vehicle is reliably connected to the grounding protection wire of the charging station.
3. Charging Station Operation Management Platform
The charging operation cloud platform system of electric vehicle charging pile manufacturers continuously collects and monitors data from the charging pile site and each charging pile connected to the system through Internet of Things technology, while detecting the overheating protection of the charger, overvoltage, undervoltage, insulation faults, etc. of the charger input and output; After the user scans the QR code through WeChat and makes payment, the system initiates a charging request and controls the charging station corresponding to the QR code to complete the charging process of the electric vehicle.
The charging pile of electric vehicle charging pile manufacturer can be equipped with WiFi module or GPRS module to access the Internet, cooperate with encryption technology and key distribution technology, and directly connect to the cloud based on tcp/ip data interaction protocol. The cloud platform includes all functions for charging and charging station operation. The specific functions are as follows:
1. Resource Management: Charging Station File Management, Charging Station File Management, User File Management, Charging Station Operation Monitoring, Charging Station Abnormal Transaction Monitoring.
2. Transaction settlement: fee pricing strategy management, pre fee management, bill management, revenue and financial related reports.
3. User management: user registration, user login, user account management, message management.
4. Charging services: charging facility search, charging facility viewing, map addressing, online self-service payment, charging, charging settlement, navigation, etc.
5. WeChat mini program: functions such as scanning codes, charging, and bill payment.
6. Data services: data collection, SMS reminders, data storage and analysis.
7. Transformer monitoring: monitoring the transformer load at the charging station. Each charging station is equipped with a wireless meter.