Inner Stator Electrical Machine With Inverted Winding

Instead of laying wire through narrow slot openings from the outside, the patent inverts the approach by introducing wire ends through the end face of the stator core and winding the wire directly in the slots from the inside outward. This reversal of the winding direction eliminates the constraint of narrow slot openings and enables efficient wire placement with optimal winding space factor.

The patent reverses the conventional winding approach by introducing wire ends through the stator core end face and winding from the inside outward. This inversion allows the wire to follow a more direct path within the slots, significantly reducing the length of end connections compared to conventional outside-in winding methods.

By inverting the winding direction and filling slots from the inside outward, the patent ensures that wires are packed tightly against the slot walls with optimal contact. This inside-out approach maximizes the winding space factor and improves thermal contact between wires and stator pack, enhancing heat abstraction efficiency.

The patent changes the winding parameters by adopting an inside-out winding method with optimized wire placement, which increases the winding space factor. This parameter change allows for reduced electric grade sheet quantity while maintaining structural integrity, thereby increasing the active copper content and electrical machine power.