电动汽车充电桩其功能类似于加油站里面的加油机，可以固定在地面或墙壁，安装于公共建筑（公共楼宇、商场、公共停车场等）和居民小区停车场或充电站内，可以根据不同的电压等级为各种型号的电动汽车充电。充电桩的输入端与交流电网直接连接，输出端都装有充电插头用于为电动汽车充电。充电桩一般提供常规充电和快速充电两种充电方式，人们可以使用特定的充电卡在充电桩提供的人机交互操作界面上刷卡使用，进行相应的充电方式、充电时间、费用数据打印等操作，充电桩显示屏能显示充电量、费用、充电时间等数据。

The pile function is similar to the gas station refueling machine inside the electric vehicle charging, can be fixed on the floor or wall mounted in public buildings (public buildings, shopping malls, public parking lot etc.) and residential parking lot or the charging station, according to the different voltage for various types of electric vehicle charging. The input end of the charging pile is directly connected with the AC power grid, and the output end is equipped with a charging plug for charging the electric vehicle. Charging pile generally provide conventional charging and fast charging two charging modes, people can use the man-machine specific charge card charging pile to provide interactive operation interface for credit card use, charging mode, charging time, the cost of the corresponding data printing operation, charging display screen can display the amount of charge, fee, charge time etc. data.