Soldering apparatus for connecting solar cells

Abstract

A soldering apparatus for connecting solar cells 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 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 U-shaped inductor loop has narrowings and widenings that serve to optimize the heat development in the soldering zone and thus also save energy. Each widening affords access to the soldering point for a magnetic-field-neutral pressure foot that presses the conductor onto the conducting track. The inductor loop extends the entire length of the conducting track of the cell upper and lower sides to solder to the conductor in one soldering operation.