二、Introduction to the functions of each part: 1. Input power distribution consists of protective circuit breaker, lightning protection unit, and input energy meter. Lightning protection and short-circuit devices play a protective role. If lightning or grid spikes are too high, they will be discharged to the earth through the lightning protection unit, thereby protecting the equipment. The input electric energy meter mainly plays a billing role, and the electricity consumption statistics are uploaded to the background. 2. The control circuit mainly plays a role in coordinating with the hardware of the system. 3. The control interface mainly displays charging data, operation process and charging status. 4. The emergency stop button is mainly used to cut off the input power when the equipment is abnormal or encounters an emergency, thereby protecting the equipment. 5. The function of the card swipe is similar to our bank card, which can handle consumption settlement and start and stop the equipment. 6. The output connector is what we call the charging gun, which is responsible for transmitting DC energy to the charging car battery. 7. There are three charging indicator states: standby, fault, and charging. They are represented by three LED indicators: green, red, and orange.