Direct Drive System
Quiet & Durable System & Conventional System
Don’t worry about break downs with Direct Drive Motor
Advanced Motor System
06 / 07
>> Direct Drive washing. Less to go wrong, more to go right.
LG Front Loading Washing Machine
Let ’s look inside the washing machine, let ’s carefully see the motor in the washing machine.
Why should we? It ’s because then you will believe the LG intellowahser DD is so perfect that it will
last longer.
Permanent magnet rotor and multi-coiled stator are swapped their place and rotor
replaces the pulley.
•
Minimum vibration and noise • No replacement of BRUSH
Coil
Stator
(Magnetized by current)
Rotor
(permanent-magnet)
Rotating Shaft
Direct Drive Motor _Without Brush
For the motor to be rotated, rotor and
stator should become a magnet so they
repel each other just like North Pole and
South Pole of a magnet repelling each other.
In universal motor, rotor and stator are
coiled and they become magnet by flowing
electricity.
What delivers electricity to rotor is a
BRUSH. Therefore rotor cannot become a
magnet without BRUSH and it cannot
rotate. If the Brush wears off MOTOR WILL
STOP!!
Rotor is a permanent magnet therefore it needs no electricity
and NO BRUSH
•
No frictional sound • No replacement of BRUSH
BLDC Motor _Without Brush
Coil
Stator
(Magnetized by current)
Rotor
(permanent
magnet)
Coiled rotor needs electricity to be rotated and BRUSH is there
to deliver electricity.
•
BRUSH makes frictional sound • BRUSH abrades and needs replacement
Universal Motor-With Brush
Coil
Brush
Stator
(Magnetized by current)
Rotor
(permanent
magnet)
Before After
Direct Drive Motor
• Quiet & Durable System
• Conventional System
What is a Brush
1. Motor without Carbon Brush
Because the Direct Drive Motor has No Carbon Brushes, the motor runs like a whisper.
No Brush also means no extra cost for Brush Replacement.
(Refer to the detail explanation of Brush on the next page)
2. Direct Drive technology
The motor drives the drum without a flywheel and a driving belt. There are less wearing parts, so
the motor is more reliable, silent and efficient.