Electric machine stator with foldable insulating elements, and method for manufacturing such a stator

An electric machine stator, comprising a core of ferromagnetic material, consisting of a plurality of teeth arranged around a longitudinal axis and defining a plurality of slots between them, along a circumferential direction;

• the stator comprising, for each tooth:
• two half-slots, on opposite sides of the tooth along said circumferential direction;
• two insulating elements, each comprising
• a) a covering portion longitudinally resting against a corresponding longitudinal end of said tooth, and
• b) an attachment portion, which is made of a plastic material and is coupled to said longitudinal end in a fixed position;
• for each half-slot, a respective sheet of foldable insulating material comprising a C-shaped portion housed in the corresponding half-slot;
• at least one winding, which is made of an electrically conductive material, is wound around said C-shaped portions and around said insulating elements and comprises:
• c) first wire portions arranged in said half-slots, and
• d) second wire portions arranged around said insulating elements;
• wherein each attachment portion is directly coupled to the corresponding longitudinal end of the tooth, without interposition of any part of said sheets,
• wherein, at said half-slots, said longitudinal ends have side surfaces with recesses, and
• wherein said attachment portions engage said recesses.