| 摘要 |
PURPOSE:To obtain a radial core having high productivity and excellent magnetic characteristics by improving the arrangement and structure of a large number of steel plate pieces constituting the core. CONSTITUTION:A radial core 1 having an inner diameter of (d), an outer diameter of D and height H is formed by disposing a plurality of torus-shaped unit cores 6a-6e on a concentric circle. The torus-shaped unit cores 6a-6e are formed by laminating a large number of steel plate pieces 3 each having predetermined width and equal length and thickness so that the width directions are directed in the radial direction. All length of several steel plate piece 3 is equal to the height H of the radial core 1. When all of the width w1-w5 of each steel plate piece 3 are made equal, the width of a steel band coil can be limited to one kind. The radial cores can be laminated simply only by collecting a large number of the steel plate pieces and directly arranging the steel plate pieces in a metallic flask in a torus shape. |
