bionicon wrote: ↑
Apr 30, 2018 2:21 pm
this is a picture of the rotor does anybody know why the magnets are posisioned like that?
This design is called IPM.
Instead of placing the magnets on the surface, steel laminations are used to direct the magnetic flux to the stator.
As it happens inside the stator steel there can be also eddy currents in the magnets, which means the magnets will become hot just if they pass the stator teeth, and this IPM design schould reduce the eddy currents in the rotor to a minimum (lower no-load losses and higher usable RPM).
So basically what spinningmagnets said, just bit more detailed explained.
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