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Question:

What is the difference between dc brushless motor and dc brushmotor?

What is the difference between dc brushless motor and dc brushmotor?

Answer:

No carbon brush, need drive electron commutation, have the brush structure is the stator magnet, the rotor coil, no brush on the other side, have uvw three, is ac motor winding
A longer life. A short lifespan. A loud noise. A small noise. The electric car now USES almost all brushless motors
The difference between a brushmotor and a brushless motor is whether it is configured with a commonly used brush - commutator. The commutation of the brush dc motor has been achieved through the contact of the graphite brush with the ring commutator mounted on the rotor. The dc brushless motor will give the rotor position feedback back to the control circuit through the hall sensor, allowing it to know the exact time of the phase change of the motor. Most manufacturers of brushless motor have three halls Effect location sensor. Because brushless motor does not have electric brush, reason also has no relevant interface, hence cleaner, the noise is smaller, actually need not maintain, life is longer.

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