What Is Inverter?
Inverter is an energy-saving technology that eliminates wasteful operation in air conditioners by efficiently controlling motor speed.
The Basic Mechanism of Temperature Control
Air conditioners maintain the set temperature by cooling when the room temperature rises above the set point and heating when the room temperature falls below it.
The motor speed in non-inverter air conditioners remains constant, and temperature is regulated by turning the motor on and off, which consumes more energy.
In inverter air conditioners, temperature is regulated by changing the motor speed without turning the motor on and off.
Compared to non-inverter air conditioners, inverter air conditioners lose less power and can save energy significantly.
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Energy Consumption Comparison Chart: Non-Inverter (100%) vs Inverter (42%) - Saves 58%
Compared to a person running
Non-Inverter Air Conditioner
Starting and stopping suddenly, resting, then starting and stopping again uses more energy.
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Runner Illustration: Start - Stop - Start - Stop (Running with Sudden Stops)
Inverter AC
When the right pace is maintained, a runner can keep going without wasting energy.
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Runner Illustration: Steady Pace, Smooth Wave (No Wasted Energy)
How is motor speed controlled?
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Permanent Magnet (N S) & Electromagnet Diagram
1. The motor operates using magnets and electric current.
A motor consists of two types of magnets. One is a permanent magnet, which has natural magnetic force. The other is an electromagnet, which generates magnetic force using electricity.
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Electric Current Direction Reversal & Magnetic Polarity Diagram
2. The direction of the electric current determines the polarity of the electromagnet.
The north (N) and south (S) poles of an electromagnet are determined by the direction of the electric current. When the direction of the current is reversed, the north (N) and south (S) poles are also reversed.
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Attractive & Repulsive Force Diagram
3. The motor rotates by switching the direction of the electric current.
When magnets come together, attraction occurs between N and S poles, and repulsion occurs between N and N poles and between S and S poles. The motor rotates from the attraction and repulsion caused by changes in the electromagnet's polarity.
4. The inverter is used to regulate how fast the direction of the electric current switches, which controls the motor's rotation speed.
An inverter rotates the motor by switching the direction of the electromagnet's current. In addition, the motor's rotation speed is regulated by precisely controlling the switching speed.
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