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Why do brush less dc motors have a rotor on the outside and a stater in the inside when they are in a computer hardrive?
Dc motors in a hardrive
- Thread starter wholepeeled
- Start date
Because you can get more torque out of a given amount of magnetic field by applying the force to the edge of the rotating disk farther away from the center.
How you arrange the rotor and stator is irrelevant from some points of view. That is demonstrated by the myriad ways that motors are designed.
Oops. This is the Homework Forum. I should not have just handed out the answer.
I hope you learned something.
How you arrange the rotor and stator is irrelevant from some points of view. That is demonstrated by the myriad ways that motors are designed.
Oops. This is the Homework Forum. I should not have just handed out the answer.
I hope you learned something.
MaxHeadRoom
- Joined Jul 18, 2013
- 30,881
This method of 'Outrunner' is uses in RC BLDC motors and the Fischer-Paykel motor in washing machines.
Max.
Max.
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