Why should the coil on the motor rotor be embedded in the silicon steel sheet?
The following reasons in the silicon steel sheet in coil mounted on motor rotor: silicon steel sheet magnetic ability, conductive ability, coil winding will produce electricity by using the magnetic force, magnetic force to the rotor rotation; winding is generally used copper or aluminum, its hardness is insufficient, the price is expensive than silicon steel, will not turn the moment winding damage.
If there is no silicon steel sheet, the air magnetic loss is too great, and the energy is lost in the air
The magnetic circuit is provided to reduce losses and convert as much electrical energy into the final mechanical energy as possible
