Patent ID: 7608954

Claim:
An electric motor, comprising: a cylindrical synthetic resin compact; a stator embedded in the synthetic resin compact and including a stator iron core, a winding section, a coil wound on the winding section and having a start end and a termination end, and an insulator for insulating the winding section; a pair of terminal pins erected on the insulator, and connected to the start end and the termination end of the coil; a circuit board for driving control; and a rotor arranged so as to face a teeth surface of the stator, wherein the synthetic resin compact includes: a first inner surface; a second inner surface positioned away from the first inner surface in an axial direction of the cylindrical synthetic resin compact and having a diameter greater than that of the first inner surface; a gap surface provided in a gap between the first and second inner surfaces for mounting the circuit board, the terminal pin penetrating the synthetic resin compact so that a tip portion thereof projects from the gap surface; and a first concave portion provided on the gap surface so as to surround the terminal pin and concaved in an axis line direction of the terminal pin.