Cover for protecting permanent magnets of pole of rotor utilized as e.g. outer rotor in wind force generator of gearless wind turbine, has central cover region arranged between two side walls

摘要

The cover (2) has a central cover region (36) arranged between two side walls (34, 35), where an aperture has width (37) larger than that of the cover region. A side plate (16) has width (17) larger than width (19) of another side plate (18). The side plates overlap each other. Depth (28) of the aperture is smaller than length (38) of the side walls, where the cover is made of amagnetic steel. End regions of the side plates limit opening of the aperture width. The cover region, side plates and side walls are produced from a metal sheet.