An AC charging post, also known as a slow charger, is a device designed to provide charging services for electric vehicles. The following is a detailed introduction about AC charging pile:
1. Basic functions and characteristics
Charging method: AC charging pile itself does not have direct charging function, but needs to be connected to the on-board charger (OBC) on the electric vehicle to convert AC power to DC power, and then charge the battery of the electric vehicle.
Charging speed: Due to the low power of OBCs, the charging speed of AC chargers is relatively slow. Generally speaking, it takes 6 to 9 hours, or even longer, to fully charge an electric vehicle (of normal battery capacity).
Convenience: The technology and structure of AC charging piles are simple, the installation cost is relatively low, and there are various types to choose from, such as portable, wall-mounted and floor-mounted, which are suitable for different scenarios of installation needs.
Price: The price of AC charging pile is relatively more affordable, ordinary household type is priced at more than 1,000 yuan, commercial type may be more expensive, but the main difference lies in the function and configuration.
2.Working Principle
The working principle of AC charging station is relatively simple, it mainly plays the role of controlling the power supply, providing stable AC power for the on-board charger of the electric vehicle. The on-board charger then converts the AC power into DC power to charge the battery of the electric vehicle.
3.Classification and structure
AC charging pile can be classified according to the power, installation mode and so on. Common AC charging pile power 3.5 kW and 7 kW, etc., their shape and structure are also different. Portable AC charging piles are usually small in size and easy to carry and install; wall-mounted and floor-mounted AC charging piles are relatively large and need to be fixed in a designated location.
4.Application Scenarios
AC charging piles are more suitable to be installed in car parks of residential areas, as the charging time is longer and suitable for night charging. In addition, some commercial car parks, office buildings and public places will also install AC charging piles to meet the charging needs of different users.
5.Advantages and Disadvantages
Advantages:
Simple technology and structure, low installation cost.
Suitable for night-time charging, less impact on the grid load.
Affordable price, suitable for the majority of electric vehicle owners.
Disadvantages:
Slow charging speed, unable to meet the demand for rapid charging.
Dependent on the vehicle charger, the compatibility of electric vehicles have certain requirements.
In summary, AC charging pile as one of the important equipment for electric vehicle charging, has the advantages of convenience, affordable price, etc., but the slower charging speed is its main shortcoming.So maybe a DC charging post is an option. In practical application, it is necessary to choose the appropriate type of charging pile according to the specific needs and scenarios.
Post time: Jul-10-2024
