Laminar device e.g. photovoltaic device, for installing on e.g. flat roof, has contact dies whose surfaces are sand blasted or structured so that they are incised automatically at adjacent area of profile tracks and outer frame by coatings

摘要

The device has transformation units (2) with outer frames made of metal. Contact dies (9) made of electrically conductive material are arranged between an outer frame of the transformation units and the profile tracks (5) of a sub-structure. The contact surfaces of the dies are sand blasted or structured such that they are incised automatically at the adjacent area of the profile tracks and the outer frame by the coatings.