Patent ID: 6861775

Claim:
A PMDC motor comprising: a shaft; a rotor core mounted on the shaft; a commutator mounted on the shaft adjacent the rotor core; windings wound about the rotor core and terminated on the commutator; a permanent magnet stator having at least one magnet confronting the rotor core; a housing supporting the stator; an end cap fixed to the housing and supporting: motor terminals; brush gear in sliding contact with the commutator for transferring electrical power from the motor terminals to the windings; and a speed sensor, wherein the speed sensor comprises a sensor coil and sensor terminals fixed to the end cap and accessible through a wall of the housing for connecting the sensor coil to external lead wires and the sensor coil is arranged to generate an electrical signal indicative of fluctuations in an electromagnetic field produced by the windings of the rotor as the rotor rotates.