A PROCESS FOR MANUFACTURING PHOTOVOLTAIC PANELS

摘要

A process for manufacturing photovoltaic panels, comprising: predisposing a ceramic support or backsheet (1) which is located on a rest (2); making through-holes (10) in the backsheet, which through-holes (10) are predisposed for the passage of electrical conductors; meticulous cleaning of the ceramic support or backsheet (1) using cleaning and drying means therefor; realising an electrical circuit or bussing (3) by superposition thereof on an upwards-facing surface of the backsheet (1), which bussing (3) is made solid to the upper surface of the backsheet (1); covering, if necessary, the bussing (3) with a layer of insulating material (4) superposed such as not to cover predetermined points or zones (30) for a subsequent electrical connection, leaving the points or zones (30) accessible or open for the said connection; laying or arranging a first layer of wrapping (5) over the whole surface of the backsheet (1); the laying not including the zones exhibiting the predetermined points (30) left uncovered or accessible for electrical connections; laying strings of photovoltaic cells (6) such that tab ribbons (60) thereof overlap with the points or zones (30) previously arranged and left accessible or uncovered, for electric connection thereto; welding the tab ribbons (60) to the bussing (3) at the predetermined points or zones (30); laying a second layer of continuous wrapping (7); superposing a protective layer of frontsheet (8); vacuum hot-pressing or laminating the above-described sandwich of materials; cooling down to ambient temperature; electrically connecting the bussing (3) to junction boxes (9) via the through-holes (10).