Modules

In the manufacturing of crystalline solar modules, single solar cells are soldered to strings and then laminated to high value modules. After the irreversible lamination process it is not possible to correct faults, so only perfect layups/matrices should be ppocessed. Our two VELA inspection systems offer a fully automated solution prior to and after the lamination process step.

• The VELA layup/matrix inspection system is located prior to the lamination process to sort out faulty parts for manual repair, which saves the faulty layups/matrices.
• The VELA laminate inspection system is designed as a final control of the complete laminates and is thus located after the laminator.

The inspection system can be delivered with a complete internal transfer system or as an in-build system to an existing automation. Both systems can handle layups/matrices and laminates with sizes up to 1.4 × 2.0 m² within the typical production cycle times. The front and back side is inspected simultaneously.

Layup/Matrix inspection tasks

• Measurement of distances between cells and to the frame
• Measurement of string alignment and orientation
• Detection of cracks, holes or chippings on the cells
• Recognition of misaligned ribbons
• Detection of impurities resp. inclusions (especially conducting contaminations which can cause shunts) between and on cells
• Control of colour homogeneity
• Reading of labels, e.g. barcodes

Laminate inspection tasks

• Measurement of distances between cells and to the frame
• Detection of cracks, holes or chippings on the cells
• Recognition of misaligned ribbons
• Detection of impurities resp. inclusions (especially conducting contaminations which can cause shunts) between and on cells
• Control of colour homogeneity
• Print inspection of the cells
• Detection of damages and bubbles on both sides
• Recognition of non-laminated areas
• Reading of labels e.g. barcodes

Data Sheet VELA Module Inspection System