Stator for an electric machine

摘要

The stator (10') has grooves (14') adjacent to each other and comprising a group of coils. The group of coils is assigned to a pole of the stator, and a pole pitch (tau-p) is defined as 1/ 2 of a circular arc (18'), which limits an opening. The grooves are separated from each other by a tooth with tooth breadth, so that sum of tooth breadth in the pole is resulted. A groove ground of an outer contour (16') is arranged at distance to yoke height (hj). The coils are made of material such as carbon nanotubes and another material such as copper.