Electric motor - Permanent Magnet, Rotor, Stator

Electric motor - Permanent Magnet, Rotor, Stator: The magnetic field for a synchronous machine may be provided by using permanent magnets made of neodymium-boron-iron, samarium-cobalt, or ferrite on the rotor. In some motors, these magnets are mounted with adhesive on the surface of the rotor core such that the magnetic field is radially directed across the air gap. In other designs, the magnets are inset into the rotor core surface or inserted in slots just below the surface. Another form of permanent-magnet motor has circumferentially directed magnets placed in radial slots that provide magnetic flux to iron poles, which in turn set up a radial field in
Electric motor, any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena. Most electric motors develop their mechanical torque by the interaction of conductors carrying current in a direction at right angles to a magnetic field.

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