What Is A Hub Motor
The BLDC hub motor is a type of dc motor
which operates without any brush or commutator mechanism.
basically, the construction of the hub motor is completely different from the
dc motor in the hub motor, the position of the rotor
and stator is opposite to the dc motor wherein dc motor, the internal part
(core) acts as a rotor and the stator is the outer part of the motor. as shown
in the following fig.
the dc motor requires a commutator as well
as carbon brushes to regulate a continuous power supply to windings.
but inside the hub motor,the power is supplied to the copper winding through an external driver circuit.
which is known as a controller. hence they are
also called bldc hub motors or brushless hub motors.
why it is name a hub motor?
the hub motors are mainly used in the
automotive application (two-wheelers mostly) hence their position is
incorporated at the hub of the rear wheel.
as you see above fig. a part that holds the
rim with spoke at the rear fork is known as a hub
so these are mounted in the place of hub
hence they are called hub motors.