Classification of electric vehicle chargers: with and without power frequency (50Hz) transformers, they can be divided into two categories. Freight three wheel chargers generally use chargers with power frequency transformers, which are large in size, heavy in weight and power consuming, but reliable and cheap; Electric bicycles and electric motorcycles use the so-called switching power charger, which is energy-saving, efficient, but easy to break. At present, there are many flyback cheap chargers with high constant voltage of 46.5v, low constant voltage of 41.5v and turning current of more than 500 mA in the market. Within the normal range, the vehicle voltage is generally between 12-16v, and it is normal as long as it is not lower than 11V when starting.
It is definitely impossible for electric vehicles to charge electric vehicles, because the charging pile of battery cars and the charging pile of electric vehicles have different executive standards, and they cannot communicate normally, so they cannot charge normally. Electric vehicle charging station refers to the station that charges electric vehicles, which is similar to the current gas station. The charging station can be divided into four sub modules according to its functions: power distribution system, charging system, battery dispatching system, charging station monitoring system. Electric vehicle charging pile and charging station are two different products. The charging pile is fixed on the ground, uses the special charging interface and adopts the conduction mode to provide AC energy for the electric vehicle with on-board charger, and has the corresponding communication, billing and safety protection functions. Similar to a single fuel dispenser in a gas station, it is fixed on the ground and recharges the incoming and outgoing vehicles by swiping cards or coin. The charging pile itself can be divided into AC charging pile and DC charging pile.