I had a handheld battery powered Dyson V6 vacuum cleaner and after years of frequent use, the battery failed. Whenever anything breaks I always take it apart to see how it works. I took the motors out of all of the brush attachments and then I took the suction motor out of the vacuum hub.

The suction motor is a very large and powerful brushless DC motor. It has 4 electromagnetic stator coils, each having 12 wire turns and the impeller can spin at speeds of up to 110,000 rpm. That means that it spins at approximately 531 mph! That is faster than the cruising speed of the Boeing 737 jet airplane!

It is one of the fastest brushless dc motors in the world!

The motor draws 350 watts from the 16v lithium-ion rechargeable battery. Here is a demonstration video of the motor running off of a 60w camping solar panel:

If you heard it making a clicking noise in the video, this is why. This motor operates by charging capacitors and discharging them on the coils to rotate the rotor. It knows which coils to activate because it has a hall effect sensor to detect the position of the rotor. The clicking noise is the sound of the coils being activated. You can hear the pulsing because it is not switching the coils at a very high rate because 60w from the solar panel is not powerful enough for them to switch very quickly.