EV chargers are also called electric vehicle supply equipment (EVSE). They are devices that supplement electric energy for electric vehicles, similar to gas stations or gas stations used by fuel vehicles. EV charger is composed of charger body, electrical modules, metering modules and other parts. The charger body includes a shell and a human-machine interface. The electrical module includes a charging socket, a cable transfer terminal block, a safety protection device, etc.
Safety protection function: EV chargers should have safety protection functions such as overload protection, leakage protection, lightning protection, and emergency stop.
Human-computer interaction function: used to input charging parameters and display relevant information under various states. For example, EV charger users can input charging power or charging amount through the keyboard on the EV charger or the mobile phone APP, and make an appointment for charging time, etc.
During the charging process, the EV chargers can display status information such as charging voltage, charging current, and charging power. Users can query information such as charging card accounts and fund balances. EV chargers that provide public charging services generally also have functions such as card swiping, identity recognition, metering and billing, ticket printing, local device debugging, and remote communication control.