Abstract: A user-friendly charger is provided, including an outer shell, a circuit board, an upper cover, a lower cover, a primary plug and a plurality of secondary plugs. The outer shell has an open first end and a second end opposite to the first end, and a receiving chamber is provided inside the outer shell. The circuit board is located inside the receiving chamber. The primary plug is configured to cover the first end of the outer shell; one end of the first conductive elastic sheet is in abutment against the two-phase pin, and the other end thereof is connected to the circuit board. The two-phase pin is rotatably connected to the outer plug housing of the primary plug, and the two-phase pin is configured to be accommodated into the accommodating slot and engaged with the secondary plug, thereby achieving stable and safe electrical connection.

Abstract: Provided is a connector converter, comprising a shell, a circuit board assembly and a connecting wire, wherein the circuit board assembly comprises a digital signal board integrated with a digital circuit, the digital signal board being provided in the shell, and the digital signal board being provided with a plurality of output interfaces; the shell is provided with outer pockets positioned corresponding to the output interfaces; and an inner end of the connecting wire is provided with a metal plate, the metal plate being embedded in the digital signal board and electrically connected to the digital signal board via a connecting terminal, and an outer end of the connecting wire extends out to the outside of the shell and is provided with an input interface. The metal plate is in embedded connection with the digital signal board.

Abstract: Provided is a connector converter, comprising a shell a digital signal board, a power source board and a connecting wire, wherein the digital signal board and the power source board are respectively integrated with a digital circuit and a power source circuit, the digital signal board and the power source board are both provided in the shell and electrically connected to each other, an inner end of the connecting wire is electrically connected to the digital signal board, an outer end of the connecting wire extends out of the shell and is provided with an input interface, the digital signal board is provided with a plurality of output interfaces, and the shell is provided with an outer pocket. The digital signal board and the power source board are respectively integrated with the digital circuit and the power source circuit.