Soldering Solar Panels With Induction Heating Units
Objective Heat multiple joints on solar flex circuit strips to 500ยฐF (260ยบC)ย within ten seconds for a soldering application.
Material Flexible solar panel, Solder Plus Paste 63NC-A, 0.0625โย (1.59mm) thick Teflon sheets
Temperature 500 ยฐF(260ยบC)
Frequency 278 kHz
Equipment โข DW-UHF-4.5kW induction heating system equipped with aย remote workhead with one 1.2 ฮผF capacitor
โข An induction heating coil designed and developedย specifically for this application.
Process A specially-designed induction coil is used to provide evenย heat in the area where the wires on the solar circuits overlap.ย A very light coat of solder paste is applied to the circuitย connections and a small amount of pressure is applied to theย Teflon sheets to hold the circuits together. Power is applied forย 10 seconds to flow the solder paste and bond the wires to theย flex circuits
Results/Benefits Induction heating provides:
โข Consistent and repeatable results
โข Non-contact clean heating
โข Flameless process
