INDUCTIVE SOLDERING DEVICE WITH AT LEAST AONE LOOP ELEMENT, HAVING TWO ARMS POSITIONED AT DIFFERENT DISTANCES FROM A SURFACE OF A WORKPIECE

摘要

A soldering apparatus for connecting solar cells (1) includes an induction heat source to connect cell conducting tracks, provided with soldering medium, with electric conductors. The heat source has a high-frequency generator and an inductor loop (32) in which the flow of a high-frequency current causes a high- frequency magnetic field to induce in the conducting track and in the electric conductor arranged along the conducting track eddy currents that generate the heat that is necessary for the soldering operation. The inductor loop (30) includes a U-shaped loop element that has narrowings and widening in one arm (31) that is positioned closer to the conductor. Ferrite beads (31) and ferrite tubes at the widening concentrate the magnetic field to optimize the heat development in the soldering zone and thus also save energy.