The Construction of DC Motor

DC motors consist of one set of coils, called armature winding, inside another set of coils or a set of
permanent magnets, called the stator. Applying a voltage to the coils produces a torque in the armature, resulting
in motion.
1. Stator
 The stator is the stationary outside part of a motor.
 The stator of a permanent magnet dc motor is composed of two or more permanent magnet pole pieces.
 The magnetic field can alternatively be created by an electromagnet. In this case, a DC coil (field
winding) is wound around a magnetic material that forms part of the stator.

2.Rotor
 The rotor is the inner part which rotates.
 The rotor is composed of windings (called armature windings) which are connected to the external
circuit through a mechanical commutator.
 Both stator and rotor are made of ferromagnetic materials. The two are separated by air-gap.

3.Winding
   A winding is made up of series or parallel connection of coils.
 Armature winding - The winding through which the voltage is applied or induced.
 Field winding - The winding through which a current is passed to produce flux (for the electromagnet)
 Windings are usually made of copper.