Underground garage charging pile

Charging piles for underground garages can generally be divided into two types: electric vehicle charging piles and electric bicycle charging piles. Electric vehicle charging piles in underground garages are mainly 7kw and 14kw AC charging piles, while electric bicycle charging piles in underground garages are mainly 10 roads.

The 7kw and 14kw underground garage AC charging piles are used to input 220v household AC power to the on-board charger, and the on-board charger converts the AC power into DC power and inputs it into the vehicle battery.

The underground garage has charging facilities, including AC and DC charging facilities, and cannot be built to the 4th floor or below. According to the "Engineering Technical Standards for Distributed Charging Facilities for Electric Vehicles" GBT 51313-2018 6.1.5, "Distributed charging facilities built in new garages should be centrally arranged in the same fire compartment. When they are installed underground or semi-underground, they should be arranged The first floor of an underground garage should not be arranged on the fourth floor or below in an underground building."

With the development of charging technology, high-power charging facilities have appeared one after another. Can high-power charging facilities be built in underground garages?

At present, high-power charging facilities are still at the technical and standard level, and the possibility of their construction in underground parking garages is unlikely. The reason is that "the load of high-power charging facilities is too large, and it is difficult for the transformers in underground parking garages to meet such requirements. "

High-power charging will only exist as a supplement to the charging scene, and will not be built on a large scale in underground parking garages. "Underground parking garages are areas for long-term parking. Small and medium-power charging facilities can meet the demand. High-power charging facilities are more suitable for construction on the ground, mostly used on highways to speed up the charging speed; or for operating vehicles such as online car-hailing and taxis. Wait, there are relatively few private applications."