Induction Bonding Solar Panel Shingles

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Induction Bonding Solar Panel ShinglesObjective To heat the stainless steel substrate of a solar panel shingle in order to melt the polymer encapsulant, allowing two shingles to bond together with a 3 inch overlap.
Material 3" by 10.25" section of a 21" solar panel shingle
Temperature 140 ÂșC
Frequency 176 kHz
Equipment An UM-06A-UHF power supply equipped with a remote heat station containing one 0.66mF capacitor.
A custom-made coil: 4 turns of 1/4" x 1/2" rectangular copper tubing, measuring 24" by 2 1/4".
Process Stationary heating - with the coil located on the topside of the sample - was utilized to achieve uniform melt and adhesion.
The shingles were overlapped according to requirements and placed on wood to simulate the installation on a roofing
surface. In addition, pressure was applied by pressing the water-cooled coil against the shingle to facilitate the bonding
(illustration). Tests are performed at several time-voltage settings.
Results Tests resulted in excellent bond formation with the absence of encapsulant bubbling and only slight surface texture change.

PDF: Induction Bonding Solar Panel Shingles


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