Modularized vehicle-mounted power supply

The utility model relates to a modularized vehicle-mounted power supply, which is characterized by comprising a cabinet. A control management module, a display control module, an AC charging module, an AC detection input module, a DC charging module, a function button, a DC24V output module, an inverter output module, a DC5V output module, a DC12V output module and a DC24V output module are arranged inside the cabient; the control management module is connected to the display control module, the AC charging module, the AC detection input module, the DC charging module, the DC24 output module, the inverter output module, the DC5V output module, the DC24V output module and a device storage batter; the display control module is connected to the function button; an AC detection input module is connected to the current input end of the AC charging module; the power supply is based on the function unit modularization design theory, each unit module has the independent function, the function modules are connected to the system power supply management module through the exclusive communication connection port and thus the management module is controlled to perform the collection and processing on the working state information of each unit.