Patent ID: 8217542

Claim:
An electric motor comprising: a permanent magnet stator; a wound rotor including a shaft, a rotor core fixed to the shaft so as to confront the stator, a commutator, and a plurality of windings wound on the rotor core and terminated on the commutator; motor terminals for connecting the motor to a source of electrical power; brush gear including at least two brushes for electrically connecting the windings to the motor terminals; and a noise suppression circuit for reducing the EMI emissions from the motor, wherein the noise suppression circuit includes a ferrite bead component in series between one of the motor terminals and one of the brushes, wherein the ferrite bead has two bead terminals, and said one of the motor terminals has a terminal contact portion which makes electrical contact with one of the bead terminals, the terminal contact portion extends about an edge of the ferrite bead and faces an end and a surface of the ferrite bead.