Magnetic working substance area is circular arc with certain radial thickness, and has certain gap with stator permanent magnetism block.
磁工质区域为圆弧形,有一定的径向厚度,与定子永磁块间留有一定的间隙。
2
The cage frame is in a column shape, and is made of a wire, and can also be folding or extended in axial direction. An end part is fixed with a circular arc-shaped permanent magnetism strip.