Stator for e.g. asynchronous motor of machine tool, has coil wound around main projections in grooves, and auxiliary projection provided between two projections, which sectionally contacts coil

摘要

The stator (3) has grooves (8) partially surrounding main projections (5). A coil is wound around main projections in the grooves. An auxiliary projection is provided between two main projections, which sectionally contacts the coil. The main projections and the auxiliary projections are alternatively arranged in a circumferential direction of the stator, where the auxiliary projections taper in the direction of a rotor (2).