Abstract: An integrated charging device, a charging pile and a method for controlling the charging pile are provided. In the integrated charging device, a controller is communicatively connected to a first end of a communication module. A second end of the communication module includes an external communication port. The external communication port is configured to be communicatively connected to a BMS of a load via a communication line in a charging gun connected to the integrated charging device. That is, the integrated charging device is capable of communicating with the BMS, so that the controller directly communicates with the BMS, without complicated transfer by an MCU and a power control unit in the conventional technology, thereby simplifying communication in the charging pile including the integrated charging device and reducing cost.

Abstract: An energy storage system and a control method thereof in the field of energy storage are provided. The system includes: an energy storage battery, a first bidirectional DC/DC circuit, a DC bus, a DC/AC circuit, a first controllable switch, and a second controllable switch. The energy storage battery is connected to a device side of the first bidirectional DC/DC circuit via the first controllable switch; a bus side of the first bidirectional DC/DC circuit is connected to the DC bus; the DC bus is connected to a public power grid via the DC/AC circuit; the second controllable switch has a first end connected to a chargeable vehicle, and a second end connected to the device side of the first bidirectional DC/DC circuit; and at most one of the first controllable switch and the second controllable switch is in a closed state at the same time.

Abstract: An unlocking circuit for a charging station when powered off is provided. A microcontroller unit outputs a first level signal and a second level signal when an auxiliary power supply is cut off. A first signal processing circuit receives the first level signal and converts the first level signal into a first control signal for unlocking an electronic lock. A second signal processing circuit receives the second level signal and converts the second level signal into a second control signal including information about action effectiveness of the electronic lock. An action execution circuit receives the first control signal and the second control signal, and responds to the first control signal and the second control signal to unlock the electronic lock.

Abstract: A power-supply circuit for a charging station. The circuit includes a control module, an on-off module, and a first auxiliary power supply. A control terminal of the on-off module is connected to the control module; an input terminal of the on-off module is connected to the grid; an output terminal of the on-off module is connected to a target controlled device. The disclosed power-supply circuit herein can realize that, when the charging station is in the standby state, the control module controls the on-off module to be disconnected, so as to realize that the target controlled device, such as at least one of the charging module, the second auxiliary power supply, the DC electricity meter, and the fan, is no longer powered on.

Abstract: A charging pile is provided by the present disclosure, including: a charging unit and at least one liquid cooling radiator arranged in a box of the charging pile; a power conversion unit of the charging unit is arranged on a contact surface outside the liquid cooling radiator; and the liquid cooling radiator is configured to dissipate heat for the charging unit by means of convective heat exchange of cooling liquid, thereby avoiding need to design a heat dissipation module for each power conversion module in the charging pile and then perform a secondary heat dissipation design on the entire charging pile in the conventional technology, which reduces cost of the charging pile and improves a level of protection of the charging pile.

Abstract: A charging pile is provided, including: a charging unit and at least one air-cooled radiator arranged in a box; the box includes a first box and a second box, a protection level of the first box is higher than a protection level of the second box; the charging unit is arranged in the first box; an independent heat dissipation air duct is provided in the second box so that the charging unit dissipates heat through the heat dissipation air duct; and the charging unit is configured to charge an electrical equipment, thereby avoiding need to design a heat dissipation module for each power conversion module in the charging pile and then perform a secondary design of the heat dissipation air duct on the entire charging pile in the conventional technology, which reduces cost of the charging pile and improves a level of protection of the charging pile.

Abstract: A charging pile and a charging unit of a charging pile are provided. The charging pile includes an AC distribution unit, a power assigning unit, and at least one power conversion unit. The power conversion unit includes one rectifier module and multiple DC/DC converters. An input terminal of the charging unit is connected to an AC side of the power conversion unit through the AC distribution unit. In the power conversion unit, a DC side of the rectifier module is connected to input terminals of the multiple DC/DC converters. Output terminals of the DC/DC converters in the power conversion unit are configured to charge an electric device through the power assigning unit.