Inductor for heating of workpiece e.g. metal sheets, has induction coil which is formed helically with turns, such that turns are parallel to one above the other and spaced from each other when seen in perpendicular direction

摘要

The inductor (1) has an induction coil (5) extending along two turns of conductor (7). The induction coil is formed helically with the turns. The turns are parallel to one above the other and spaced from each other when seen in perpendicular direction. A field concentrator element is arranged in cross-sectional area (11) of the inductor.