8.11 Commutator motor 8.11.1 General characteristics Commutator motors are fitted to appliances with spin speeds of between 600 and 1,600 rpm. These motors are manufactured by: SOLE (formerly ZEM) FHP (formerly AEG) CESET It is possible that motors produced by manufacturers other than the original manufacturer may have the same part number, but these are perfectly interchangeable. 1. Stator 2. Terminal block 3. Commutator 4. Tachymetric generator magnet 5. Tachymetric generator coil 6. Brush 1. Stator 2. Stator winding 3. Brush 4. Commutator 5. Rotor winding 6. Motor drive shaft 7. Pulley 8. Bearing 9. Tachymetric generator coil 10. Magnet 11.
Spring 8.11.2 Operating principle The stator winding is connected in series to the rotor winding (i.e. they are energized in series). Each section of the rotor winding is connected to a pair of commutator plates (also called "commutators"). The electrical contact between the commutator and the fixed circuit is provided by two brushes which slide in contact with the commutator plates. The speed of rotation of the motor is proportional to the power voltage supplied by an electronic control system. This is also known as a "universal" motor, since it can be powered either by alternating or direct current. SOI/DT 2002-05 eb 78 599 35 23-17