Patent ID: 7385331

Claim:
A stator for electrical machines, in particular motor vehicle generators, with stator slots that are open radially inward, at least some of which contain coils make from round wire and have side walls ( 10 , 12 ) of equal length that each extend parallel to their center radial plane, characterized in that the entrances ( 16 ) of the stator slots have a width, measured transversely to their center radial plane, that is slightly greater than the diameter d of the round wire ( 18 ); the width of the stator slots, measured between the parallel side walls ( 10 , 12 ), amounts to (1+cos 30°)d; and the radially outer slot wall ( 14 ) forms angles of 60° and 120°, respectively, with each of the two side walls ( 10 , 12 ).