For new energy owners, the impact of charging piles on electric vehicles is as important as that of traditional fuel vehicles. The use experience of charging piles directly affects the car experience.

At present, the new energy vehicle charging pile on the market is mainly divided into DC pile and AC pile. There are large differences in technical parameters such as current and voltage. The most obvious difference is power: it only takes 1 to 2 hours for a pure electric vehicle to fully discharge through a DC charging pile, while it takes 8 to 10 hours for an AC charging pile.

Why is the charging efficiency of AC charging pile low and accounts for a large proportion?

Firstly, due to the low technical threshold, the manufacturing cost of AC charging pile is relatively low; Secondly, the DC charging pile should match the three-phase 380. The V power supply department needs to approve the voltage separately, while the AC charging pile only needs single-phase 220V ordinary household electricity to support the voltage. Compared with the coordination of land and power grid resources required for the construction of the DC charging pile, the investment and construction restrictions of the AC charging pile are much smaller.

Due to low cost and fast installation speed, in the era of horse racing enclosure, many enterprises invested in the construction of a large number of low-power AC charging piles to quickly occupy the market, resulting in the proliferation of AC piles.