Direct-current driving motor and electric toothbrush

The invention discloses a direct-current driving motor and an electric toothbrush, and relates to the technical field of driving devices, the direct-current driving motor comprises a shell, a rotor assembly, a stator assembly and a pressure sensor, and one end of the shell is provided with a first bearing; the rotor assembly is arranged in an inner cavity of the shell, a driving shaft is arranged in the rotor assembly in the axial direction in a penetrating mode, one end of the driving shaft is rotationally connected with the first bearing and extends towards the outer side of the shell to form an extending part, and the other end of the driving shaft is rotationally connected to the inner side of the other end of the shell; the stator assembly is arranged in the inner cavity of the shell and surrounds the rotor assembly; the pressure sensor is arranged on the driving shaft and located between the rotor assembly and the other end of the shell, and the pressure sensor is used for sensing the pressure borne by