| 摘要 |
<p>The magnetic core comprises a stack of plates which extend mainly along a single axial direction. The stack cross section has as envelope (10) a curve comprised of two half circles with a radius a/2 and of two straight lines (15) with a length (b-a) which connect together the end points of the half circles. The ratio b/a lies between 1,05 and 2 and preferably between 1,3 and 1,7.</p> |
