Abstract:
A charging device may comprise: a charging gun comprising a connection confirming unit and a receiving unit; a low voltage auxiliary power source; a power module configured to convert an AC electricity to a DC electricity; and a controlling module, connected with the charging gun, the low voltage auxiliary power source and the power module respectively, for controlling the low voltage auxiliary power source to supply power to a circuit connected with the controlling module.
Abstract:
A charging device may comprise: a charging gun comprising a connection confirming unit and a receiving unit; a low voltage auxiliary power source; a power module configured to convert an AC electricity to a DC electricity; and a controlling module, connected with the charging gun, the low voltage auxiliary power source and the power module respectively, for controlling the low voltage auxiliary power source to supply power to a circuit connected with the controlling module.
Abstract:
An electric vehicle charging system comprises a transformer (1) that is connected to an AC power network and designed to convert the electric power from the AC power network into DC current and transfer the DC current to a load (2). The charging system further comprises an electric power control module (3) and a storage battery (4). The electric power control module is electrically connected to the transformer, the storage battery and the load, and is configured to make the storage battery electrically connected to the load if the load requires extremely high electric power or the transformer is in outage, so that the charging system charges the load at least partially from the storage battery.