How a Brushless Motor Works

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Did you know that brushless motors run up to 15% more efficiently than brushed motors? Which makes you think a little deeper – Do you ever wonder how a brushless motor works?

After all, there are no brushes! So how does it transfer that electrical energy into movement? Well, let’s take a closer look and find out!

How Does a Brushed DC Motor Work?

First of all, let’s recap on brushed motors for context. For those unaware, a brushed dc motor has brushes to make contact with the commutator.

The brushes consist of wires using a spinning armature. These move about each other creating a dc current.

This movement makes it possible for them to turn on and off at different times during the rotation of the rotor. In turn, this results in making or breaking electrical connections as needed.

How Does a Brushless Motor Work?

Brushless electrical motors have no moving parts like brushes. Instead, there’s an electronic circuit that controls current flow through coils. This process occurs inside the stator.

Magnetic fields occur around the coils, resulting in a flow of currents. It’s this flow that causes torque. In turn, this torque is what causes the shaft to rotate.

Benefits of a Brushless Motor

There are many benefits to using a brushless motor such as this brushless coreless motor over a brushed DC motor. Here are some examples:

No Need for Maintenance

A brushed motor requires regular cleaning and lubrication. That’s because of all the grease and dirt that gets into its bearings.

With a brushless motor, you don’t have to worry about this. They don’t use mechanical components and only need electricity to run.

More Efficient

Brushes wear down fast due to friction between their contacts and the commutators. They also get dirty with ease, so they need frequent replacement.

In contrast, brushless motors can last much longer than brushed ones. In particular, that’s down to needing much less maintenance.

Quieter Operation

Because there aren’t any moving parts involved, brushless motors tend to be quieter. Also, when compared side-by-side, brushed motors usually produce more noise than brushless ones.

Easier to Control

In brushless motors, there isn’t anything mechanical attached to the rotating parts. Thus, it’s easier to control the speed of the motor. You can even stop it from turning completely if necessary.

Industrial Applications of Brushless Motors

The most common application for brushless motors today is vehicles. There are two main types of vehicle applications. These are electric cars and hybrid-electric vehicles.

Other uses include industrial equipment. Examples include robots, or lawnmowers, where high performance and reliability are important.

Know How a Brushless Motor Works

There’s no denying the industrial benefits of knowing how a brushless motor works. Now you’ll be able to make a more efficient and quieter decision! You’ll not only know what kind of motor you need but also understand why certain features exist.

For more advice that’ll get your motor running, keep reading for more awesome articles!

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