Patent ID: 8304944

Claim:
An electric power-steering apparatus motor apparatus comprising: a flat base portion on a first surface side of which a first bearing box is disposed; a tubular first peripheral wall portion that is disposed on a second surface side of said base portion and that functions together with said base portion to configure a control apparatus housing space; a tubular second peripheral wall portion that is disposed on an opposite side of said first peripheral wall portion from said first surface side of said base portion; a floored cylindrical motor frame that is that is disposed on an opposite side of said second peripheral wall portion from said base portion so as to function together with said second peripheral wall portion to configure a motor housing space, and on a bottom portion of which a second bearing box is disposed; a motor comprising: a stator comprising: a stator core that is held inside said motor frame; and a stator winding that is mounted to said stator core; and a rotor that is disposed rotatably on an inner circumferential side of said stator such that a first end region of a rotating shaft is inserted through said control apparatus housing space and is supported by a first bearing that is held by said first bearing box, and a second end of said rotating shaft is supported by a second bearing that is held by said second bearing box, a first end of said rotating shaft that projects out through said first bearing constituting a coupling portion; and a control apparatus that is disposed inside said control apparatus housing space, and that controls driving of said motor.