Patent ID: 7200917
Filing Date: 2007-04-10
Classification: H02K,Y10T

Abstract:
1. A method of winding the coils of a rotating electrical machine comprising providing a circular core of magnetic material with a plurality of magnetic pole teeth extending radially from the circular core, adjacent pairs of the magnetic pole teeth defining slots formed there between, each of the slots defining a mouth that is formed between adjacent outer ends of the pole teeth, said method comprising positioning a threading needle having an opening through which the wire for the winding of the coils is fed into proximity to one of the mouths, moving the needle opening in a path around one of the pole teeth and at one side of the slot without moving the needle in any substantial distance along the length of the one pole tooth to form a first winding, continuing the movement of the needle opening in a path around the one of the pole teeth at the one side of the slot without moving the needle in any substantial distance along the length of the one pole tooth to form succeeding windings, the circumferential length of the pole teeth decreasing in an axial direction along their length from the opening toward the core, and holding the wire end at the end of the pole tooth spaced from the needle so that each successive winding forces the previous winding along the pole tooth toward the circular core without requiring movement of the needle in any substantial distance into the slot.