Method for forming the separating lines of a photovoltaic module with series-connected cells

US8187911B2 · kind B2 · utility

Assignee

• SCHOTT SOLAR AG · DE

Inventor

• Walter Psyk · Munich, DE

Key dates

• Filing date: Mar 12, 2009
• Grant date: May 29, 2012
• Expiry date: Mar 3, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/50
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

For forming the separating lines, (5, 6, 7) which are produced in the functional layers (2, 3, 4) deposited on a transparent substrate (1) during manufacture of a photo-voltaic module with series-connected cells (C1, C2, . . . ), at least one laser scanner (8) is used whose laser beam (14) produces in the field (17) scanned thereby a plurality of separating line sections (18, 18′) disposed side by side in the functional layer (2, 3, 4). The laser scanner (8) is moved relative to the coated substrate (1) in the direction (Y) of the separating lines (5, 6, 7), thereby giving rise to an overlap (36) of adjacent fields (17, 17′). At the same time, the laser scanner (8) produces separating line sections (18, 18′) which are of hook-shaped configuration at least at one end (32) so as to form a catching area in which the ends (31, 32) of the separating line sections (18, 18′) of adjacent fields (17, 17′) overlap.