What is the working principle of the outer rotor brushless DC motor? How to turn it?

Brushless DC motors generally have inner rotor and outer rotor brushless DC motors, both of which are widely used, so what is the working principle of outer rotor brushless DC motors? How to turn it? Vacuz introduces to you!

Brushless DC motor rotation, need to know the following points:

1. To determine the position of the rotor, it can be determined by the output signal of the rotor position sensor.

2. Through the electronic commutation circuit, the motor is driven to feed the stator winding.

3. The stator winding feeds electricity to generate a rotating electromagnetic field, thereby driving the motor rotor to rotate.

The working principle of the outer rotor type brushless DC motor:

1. The magnetic steel of the outer rotor type brushless DC motor is distributed on the casing, and is attached to the casing one by one. When the whole motor is running, it is the casing that rotates, and the stator coil in the middle does not move.

2. Compared with the inner rotor brushless DC motor, the outer rotor brushless DC motor has a larger moment of inertia and a relatively slower speed because of the heavier casing.

3. The working principle of the outer rotor type brushless DC motor, when the winding is energized, the N pole of the rotor and the S pole of the winding move in alignment, and the S pole of the rotor moves in alignment with the N pole of the winding.

What is the working principle of the outer rotor brushless DC motor? How to turn it? A brief explanation has been made above, and Vacuz hopes that these little knowledge can help everyone!

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