How A Brushless DC Motor Works

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Like brushed DC motors, brushless motors work by alternating the polarity of the windings on the interior of the motor. The magnetic fields created when the coils are generated exert a push/pull force on the permanent magnets organized around the surface of the casing. On a brushless DC motor, it's not the motor shaft that rotates, however slightly the outside case. Because the central shaft, to which the windings are hooked up, is stationary, energy may be delivered directly to the windings, eliminating the necessity for brushes.

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As manufacturers look to drive extra traditionally corded tools to cordless, you may expect to see more outer rotor brushless motors. Lithium-ion nonetheless hasn’t reached the pinnacle of its capabilities. Outer rotor designs help generate extra power and efficiency as we push the boundaries of what battery energy can achieve.

There are two forms of driving mechanisms: direct drive and belt drive mechanism. In the direct drive mechanism, the drive shaft is related to an electric motor. This entails that the pace of the centrifugal blower and fan can be managed and altered by controlling the speed of the motor.