Disclosed is a mobile energy storage device of an electric automobile

The embodiment of the utility model discloses a mobile energy storage device of an electric automobile, which comprises a trailer, a battery system, a current conversion system, a high-voltage connecting component and a low-voltage connecting component, and the battery system, the current conversion system, the high-voltage connecting component and the low-voltage connecting component are mountedon the trailer, The current conversion system is connected with the electric vehicle through the high-voltage connecting assembly to realize high-voltage energy transmission, charging of the battery system and discharging of the battery system; And the current conversion system is connected with the electric automobile through the low-voltage connection assembly to realize low-voltage electrical connection of the battery system. The electric vehicle has multiple functions of mobile energy storage and is wide in application range. 本实用新型实施例公开了一种电动汽车移动储能装置，该储能装置包括拖挂车、安装在该拖挂车上的电池系统、电流转换系统、高压连接组件和低压连接组件，其中，拖挂车用于与电动汽车可拆卸连接并