Electric power steering apparatus

An electric power steering apparatus comprising:

• a motor comprising a housing and a shaft disposed on an axis of said housing and connected with a steering mechanism of a vehicle, said motor being operable to assist a steering force of a steering wheel through said shaft;
• and
• a control circuit unit comprising a power device for driving said motor being disposed in a casing;
• wherein said housing includes a housing opening through which lead wires pass,
• said casing includes a casing opening through which said lead wires pass,
• said motor and said control circuit unit are integrated with each other with said housing opening and said casing opening disposed to correspond to each other,
• said lead wires comprise bus bars which are exposed from said casing opening and electrically connected with said power device, said bus bars being connected through relay wires with a motor coil which is disposed in said housing for generating a rotating magnetic field, and
• said lead wires further comprise sensor terminals which are exposed from said casing opening and electrically connected through sensor lead wires with a rotational position sensor disposed in said housing for detecting a rotational angle of said shaft.