Rotor unit for permanently excited electric machine, has stop plate stacked with guide plates and provided with stop for axially form-fit securing permanent magnet, where stop overlaps with recesses of guide plates

摘要

The unit (100) has a set of guide plates (107) stacked one upon the other in an axial direction (104), where a set of recesses (110) is formed in the guide plates for radial form-fit guiding of a permanent magnet. A stop plate (108) is stacked with the guide plates, and includes a stop for axially form-fit securing the permanent magnet, where the stop overlaps with the recesses of the guide plates. The guide plate and the stop plate have a consistent outer contour (112) and equal thickness. The stop has thickness, which is reduced relative to the thickness of the stop plate. An independent claim is also included for a method for assembling permanent magnet at a rotor unit for a permanently excited electrical machine.