The invention relates to a battery swap
station, and especially relates to an expandable small-sized
chassis type battery swap
station applying a transfer trolley, which resolves the problems of the conventional battery swap
station that occupation area is quite large, expanding degree is low, conveying is inconvenient, and fully-automatic power changing cannot be achieved. The expandable small-sized
chassis type battery swap station comprises a charging container and a power-changing container, arranged adjacently, and a RGV charging trolley, which conducts reciprocating movement between thecharging container and the power-changing container. The charging container comprises a first case body, and a lifting
machine, a transfer trolley, a lifting
machine track, a main control cabinet, a power distribution cabinet, a charging
system and a plurality of battery racks, with the latter seven being disposed in the first case body. The lifting
machine track is embedded in the bottom of the first case body along the length direction. The lifting machine can move along the lifting machine track. The transfer trolley shuttles between a plurality of battery racks and the lifting machine. Oneside of the plurality of battery racks is provided with the main control cabinet and the power distribution cabinet, and the other side is provided with the charging
system.