Modularized PCB assembly and charging socket

The modularized PCB assembly comprises a PCB, a low-voltage connector and a group of signal terminals, the front end face of the PCB is provided with connecting holes, each connecting hole is provided with an elastic connecting piece, the signal terminals are in one-to-one butt joint with the connecting holes, and the signal terminals are connected with the connecting holes in a one-to-one butt joint mode. The elastic connecting piece is abutted against the inner wall of the end part of the signal terminal under the action of the elastic force of the elastic connecting piece, and the signal terminal is communicated with a connecting circuit integrated on the PCB; and the low-voltage connector communicated with the PCB is inserted into the rear end face of the PCB. According to the scheme, the mode that the signal terminal is connected with the PCB in an inserted mode is adopted to replace a traditional mode that a cable and the PCB are welded, so that manual doubling and crimping processing is not needed, the