| 摘要 |
The invention relates to an electric machine comprising a stator (16) and a rotor (20), differently polarized excitation poles (24, 25), especially claw poles, that are adjacent on the periphery of the rotor (20) facing the stator (16), pole gaps (63) having trapezoid cross-sections being defined between the excitation poles (24, 25). At least one permanent magnet (70) is arranged in at least one pole gap (63) and counteracts a leakage flux between its adjacent excitation poles (24, 25) when operated. The permanent magnet (70) has a cross-section that is adapted to the trapezoid cross-section of the pole gap (63), a shorter length bm1 of the parallel sides of the trapezoid cross-section of the pole gap (63) being positioned radially outward, the permanent magnet (70) being supported or retained between the excitation poles (24, 25) by means of a retaining element (80). The invention also relates to a fastening method. |
