Patent ID: 9225227
Filing Date: 2015-12-29
Classification: H02K

Abstract:
1. An electric machine ( 1 ), comprising a rotor shaft ( 9 ), which is mounted rotatably in a housing ( 2 ), a slip ring device ( 13 ), which has at least two slip rings ( 14 , 15 ) arranged in rotationally fixed fashion on the rotor shaft ( 9 ) and at least two sliding contacts ( 16 , 17 ), which are arranged in the housing ( 2 ) and interact with in each case one of the slip rings ( 14 , 15 ), and a rotation angle detection device, which has at least one rotation angle encoder ( 23 ) arranged on the rotor shaft ( 9 ) and at least one rotation angle sensor ( 26 ) arranged in the housing for detecting the rotation angle encoder ( 23 ), characterized by a sleeve ( 18 ), which is applied to a free end ( 10 ) of the rotor shaft ( 9 ) and bears the slip rings ( 14 , 15 ) on a lateral outer wall of the sleeve and the rotation angle encoder ( 23 ) on one free end side ( 19 ) of the sleeve.