HELICAL WINDING AND METHOD OF ITS PRODUCTION Russian patent published in 2010 - IPC H01F27/28 H01F41/06 

FIELD: electrical engineering.

SUBSTANCE: proposed winding consists of coils each including n parallel conductors, where n>3 is an integer, that make m rows, where m>3 is an integer. Rows are arranged perpendicular to winding axis. Transposition of parallel conductors is mad between rows. Parallel conductors are cut on concentrated transposition of helical one- or multi-start winding, and their ends are located outside the winding OD and connected so that the first conductor of numbered in ascending order from winding ID to its OD is connected with the end of n-th parallel conductor after aforesaid cut. The end of the second parallel conductor before the cut is connected with the end of (n-1)-th parallel conductor after the cut. Further, the ends of all parallel conductors of every winding start before aforesaid cut are connected with the ends of all parallel conductors of every winding start after the cut in similar manner. At n>6, parallel conductors are divided into groups and transposition is made inside the group of parallel conductors.

EFFECT: ease of manufacture, reduced sizes and height of winding.

4 cl, 1 dwg