As the stator rotates, it generates an electromagnetic field that flows from the north pole to the south pole, similar to the rotation of the Earth. This action charges the engine's battery.
However, if you've ever taken out the flywheel, you'll notice that the stator core isn't a solid piece of metal. Instead, it is divided into hundreds of laminations.
why is that? Stator laminations offer many advantages to keep your engine running at peak performance. The advantages are as follows.
The electromagnetic fields of the stator core generate voltages called eddy currents.
This current typically results in power loss and performance degradation. How much is lost depends on several factors, including the frequency of the EMF and the density of the magnetic flux.
The stator laminations reduce eddy currents by insulating iron cores. Thin silicon steel sheets are stacked on top of each other around the center, preventing eddy currents from flowing. As eddy currents are reduced, the stator core can maintain constant power, keeping the motor running.
The electromagnetic field generated by the rotating stator magnetizes the iron core. However, these effects do not occur simultaneously.
The magnetization lags behind the creation of the magnetic field, a phenomenon called hysteresis. When you remove the magnetic field (i. . Turn off the engine) the iron slowly demagnetizes.
Switching back and forth between magnetization and demagnetization creates a cycle. The larger the loop, the more energy is required to magnetize and demagnetize the core. When the core generates heat, it loses hysteresis. This loss wastes energy and forces the motor to consume more power to operate.
Heat is usually accompanied by the generation of eddy currents. A solid piece of iron not only emits large eddy currents, it is very hot. This heat is enough to completely burn out the iron core.
By laminating the stator, eddy currents and the heat they generate are reduced. The cooling core is simplified to pump air or coolant through the core structure.
The laminations have narrow hysteresis loops and require less energy to magnetize and demagnetize the core.
In layman's terms, a laminated stator can improve the efficiency of a motor.
Get the best stator laminations.
Laminated stators are a no-brainer when it comes to core construction.
They are energy efficient, thermally efficient and generate less waste.
On the manufacturing side, our team of experts uses laser cutting or stamping processes to laminate stator cores.
We can also supply the ultimate in motor laminations.
Check out our website now and Contact us for a free quote.