If you take a simple DC brushed electric motor, there are often 2 separate permanent stator magnets on the outside. In diagrams these are often simply portraited as N on one side and S on the opposite side.
But each of these magnets has their own N and S poles, doesn’t it? Where are they located, along which axis?
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In an electric motor, stator magnets are used to create a magnetic field, which interacts with the rotor to produce motion. The North and South Poles of the stator magnets are determined by the direction of the magnetic field.
For a simple brushless DC motor, the stator typically consists of multiple permanent magnets arranged around the inner circumference of the motor housing. The North and South Poles of these magnets alternate as they go around the stator. This means that if one magnet has its North Pole facing towards the rotor, the adjacent magnet would have its South Pole facing the rotor, and so on. The precise arrangement of the magnets and the number of poles will depend on the motor design.
In other types of motors, such as induction motors and synchronous motors, the stator does not have permanent magnets. Instead, the stator has windings that carry alternating current, which creates a rotating magnetic field. In these cases, the North and South Poles are not fixed in place but rotate around the stator as the current changes direction.
Ultimately, the exact location of the North and South Poles on stator magnets will depend on the specific design of the electric motor in question.
Hope this helps.
One has S on the inside and N on the outside, the other is the opposite. The steel motor casing lets the ouside fields link up.
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