Patent ID: 7275451

Claim:
An electric power steering device having a torque sensor for detecting torque by using a coil winding in an electromagnetic yoke, the device comprising; a terminal block projecting radially with respect to an axial line of a substantially cylindrical coil bobbin; said coil bobbin being accommodated in the electromagnetic yoke by a predetermined offset amount, and said terminal block being positioned radially outside of an electromagnetic yoke cover to be attached to the electromagnetic yoke, the terminal block including press-fitting holes for press-fitting and fixing connection pins, wherein the press-fitting holes include air-purging holes communicating with the outside, said connection pins projecting radially with respect to the axial line and connecting the coil winding and a sensor circuit substrate, wherein the connection pins are fixed at the predetermined portions of the sensor circuit substrate, and the air-purging holes are provided near a deepest area of the press-fitting holes in a direction substantially perpendicular to an axial direction of the press-fitting holes.