1. Classification of charging piles
According to the different power supply methods, it can be divided into AC charging piles and DC charging piles.
AC charging pilesare generally small current, small pile body, and flexible installation;
TheDC charging pileis generally a large current, a larger charging capacity in a short time, a larger pile body, and a large occupied area (heat dissipation).
According to the different installation methods, it is mainly divided into vertical charging piles and wall-mounted charging piles.
Thevertical charging piledoes not need to be against the wall, and is suitable for outdoor parking spaces and residential parking spaces;Wall-mounted charging stations, on the other hand, must be fixed by the wall and are suitable for indoor and underground parking spaces.
According to different installation scenarios, it is mainly divided into public charging piles and self-use charging piles.
Public charging stations are charging piles built in public parking lots combined with parking spaces to providepublic charging servicesfor social vehicles.
Self-use charging pilesare charging piles built in personal parking spaces to provide charging for private users.Electric car chargersare generally combined with the construction of parking spaces in parking lots. The protection level of the charging pile installed outdoors should not be lower than IP54.
According to the different charging interfaces, it is mainly divided into one pile and one charge and one pile of multiple charges.
One pile and one charge means that aev chargerhas only one charging interface. At present, the charging piles on the market are mainly one pile and one charge.
One pile of multiple charges, that is, group charges, refers to acharging pilewith multiple charging interfaces. In a large parking lot such as a bus parking lot, a groupev charging stationis needed to support the charging of multiple electric vehicles simultaneously, which not only speeds up the charging efficiency, but also saves labor costs.
2. the charging method of the charging pile
Slow charging
Slow charging is a more commonly used charging method, for thenew energy electric vehicle charging pile, it is connected to the on-board charger, it is mainly to convert low-power alternating current into direct current, that is, AC-DC conversion, the charging power is generally 3kW or 7kW, the reason is that the power battery can only be charged by DC. In addition, the slow charging interface of thenew energy electric vehicle charging pileis generally 7 holes.
Fast charging
Fast charging is the way people like to charge, after all, it saves time.DC fast chargingis to connect the AC-DC converter to the charging pile of new energy electric vehicles, and the output of theev charging gunbecomes high-power direct current. Moreover, the charging current of the interface is generally very large, the battery cell is much thicker than the slow charge, and the number of holes in the cell is also much more. The fast charging interface of thenew energy electric vehicle charging stationis generally 9 holes.
Wireless charging
Officially, wireless charging for new energy vehicles refers to ahigh-power chargingmethod that replenishes energy for high-voltage power batteries. Similar to wireless charging for smartphones, you can charge the battery of your phone by placing it on the wireless charging panel and not connecting the charging cable. At present, the technical methods ofwireless charging of electric vehiclesare mainly divided into four types: electromagnetic induction, magnetic field resonance, electric field coupling and radio waves. At the same time, due to the small transmission power of electric field coupling and radio waves, electromagnetic induction and magnetic field resonance are mainly used at present.
In addition to the above three charging methods, electric vehicles can also be replenished by battery swapping. However, compared with fast and slow charging, wireless charging and battery swapping technology have not yet been widely used.
Post time: Jul-01-2025
