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The motor is divided into an inner rotor motor and an outer rotor motor, and the magnet is the same. What is the difference between the outer rotor motor magnet and the inner rotor motor magnet? The following Chinese magnet manufacturers have the courage to briefly introduce them to you.
What is the difference between the inner rotor and the outer rotor magnet?
Usually, the magnets of the outer rotor motor are generally magnetization internally, and the magnets of the inner rotor motor are magnetization externally. The main difference between the inner rotor and the outer rotor is the inner rotation or the outer rotation. For example, the motor in the remote control car played by children is inward rotation (the motor shaft is rotating) and the outer rotation can be said that the entire surface is rotating (except for the rotor bracket).
The picture below shows the ring magnet of the outer rotor motor, with radial inner magnetization multi-pole, relatively large inner diameter.
The picture below shows the magnets of the inner rotor motor, radially outer magnetized multi-pole, inner diameter of the magnet is relatively small
Commonly used materials for motor rotor magnets include arc-shaped ferrite magnets, arc-shaped NdFeB magnets, injection molded ferrite magnets, bonded NdFeB magnets, etc. Our company can provide them, and customers are welcome to inquire and sample.
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