Patent ID: 9124164
Filing Date: 2015-09-01
Classification: H02K

Abstract:
1. An electric machine ( 10 ), comprising an exciter system composed of a plurality of electrically excited salient poles within a stator ( 16 ) or rotor ( 20 ) in the form of electromagnetically excited poles ( 22 , 23 ; 24 , 25 ), which are axially oriented on a periphery and are alternatively polarized in a peripheral direction, for increasing performance by additional magnetic field strength and comprising permanent magnets ( 66 ), which are inserted into interstices ( 74 ) between the alternating poles ( 24 , 25 ), wherein said permanent magnets ( 66 ) increase performance by additional magnetic field strength and reducing magnetic flux leakage and which are secured by magnetically non-excitable holding elements ( 60 ), each of which is bilaterally mounted in pole grooves ( 92 , 94 ), characterized in that each holding element ( 60 ) is resilient and has a wave-shaped ( 62 ) profile along a direction transverse to a longitudinal direction of the holding element ( 60 ), wherein the holding element ( 60 ) is held by holding collars ( 112 ) that are bent away from the permanent magnet ( 66 ) such that said holding collars ( 112 ) have a substantially round profile when viewed along the longitudinal direction and said holding collars ( 112 ) are inserted into the two respective oppositely polarized pole grooves ( 92 ) along the longitudinal direction.