Do you know what an electric vehicle charging station is?

When buying an electric car, many consumers are concerned about the charging of the car. Just like a traditional fuel car, the car cannot be driven without refueling. The same is true for an electric car. If it is not charged, there is no way to drive. The difference between cars is that electric vehicles are charged with charging piles, and charging piles are relatively easy to install and common, but there are still many consumers who do not know about electric vehicle charging piles

The function of the charging pile is similar to the fuel dispenser in the gas station. It can be fixed on the ground or wall and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. Charge various models of electric vehicles. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging the electric vehicle. Charging piles generally provide two charging methods: conventional charging and fast charging. People can use a specific charging card to swipe the card on the human-computer interaction interface provided by the charging pile to perform operations such as corresponding charging methods, charging time, and cost data printing. The charging pile display can display data such as charging amount, cost, charging time and so on.

Electric vehicle charging pile introduction: charging technology
The on-board charging device refers to the device installed on the electric vehicle that uses the ground AC power grid and the on-board power supply to charge the battery pack, including the on-board charger, the on-board charging generator set and the operating energy recovery charging device. The cable is plugged directly into the charging socket of the electric vehicle to charge the battery. The vehicle-mounted charging device usually uses a contact charger with a simple structure and convenient control, or an inductive charger. It is completely designed according to the type of vehicle battery and has strong pertinence. Off-board charging device, that is, ground charging device, mainly includes special charging machine, special charging station, general charging machine, and charging station for public places. It can meet various charging methods of various batteries. Usually off-board chargers are relatively large in power, volume and weight in order to be able to adapt to various charging methods.
In addition, according to the different ways of energy conversion when charging the battery of an electric vehicle, the charging device can be divided into a contact type and an inductive type. With the rapid development of power electronics technology and converter control technology, and the maturity and popularization of high-precision controllable converter technology, the staged constant-current charging mode has been basically replaced by the constant-voltage current-limiting charging mode in which the charging current and charging voltage change continuously. . The dominant charging process is still the constant voltage current limiting charging mode. The biggest problem with contact charging is its safety and versatility. In order to make it meet the strict safety charging standards, many measures must be adopted on the circuit to enable the charging device to be safely charged in various environments. Both constant voltage current limiting charging and staged constant current charging belong to contact charging technology. New electric vehicle inductive charging technology is developing rapidly. The induction charger uses the transformer principle of high-frequency AC magnetic field to induce electric energy from the primary side of the vehicle to the secondary side of the vehicle to achieve the purpose of charging the battery. The biggest advantage of inductive charging is safety, because there is no direct point contact between the charger and the vehicle. Even if the vehicle is charged in harsh climates, such as rain and snow, there is no danger of electric shock.