Abstract: The present invention provides a compact winding for multi-phase electric machines. For each phase, a conductor with a specifically shaped overhang portion is provided. All but one of the various overhang portions are provided with a U-bent portion to accommodate a traversing portion of at least one of the other conductors. The width of the U-bent portions differs from phase to phase so that conductors can be inserted into the stator slots in a staggered fashion. A step deformation which has the same shape for all phases, is used for connecting different layers of the winding. Electric contacts to the windings are provided at the overhang portions without deviating from the staggered arrangement of traversing conductor portions.

Abstract: A method and an apparatus for compact insertion of thick wire multiphase pseudo helical wave winding into a ferromagnetic core of an electrical machine, achieving high fill factor of the core slots, resulting in better heat transfer between the winding and the core, low mass and volume, and overall higher efficiency of electrical machine. An apparatus being fully programmable and physically adaptable to wide range of electric machine dimensions, where process is automated, simple, accurate, reliable and quick, while being suitable for mass production.

Abstract: A method and an apparatus for compact insertion of thick wire multiphase pseudo helical wave winding into a ferromagnetic core of an electrical machine, achieving high fill factor of the core slots, resulting in better heat transfer between the winding and the core, low mass and volume, and overall higher efficiency of electrical machine. An apparatus being fully programmable and physically adaptable to wide range of electric machine dimensions, where process is automated, simple, accurate, reliable and quick, while being suitable for mass production.