Abstract: Backsheet for photovoltaic panels with conductive interface elements intended to simplify the electrical connection of the terminal points of the circuit to the back junction box. The conductive elements are of the non-through type through the backsheet, with double contacting face, and are integrated on the front side towards the cells within recessed seats and in correspondence of through-holes in such a way as to enable an electrical connection by contact from the back side through the holes, in a guided way, by means of respective conductive elements protruding and fastened to the junction box. In particular, such a simplified contacting solution can be realized with extreme precision, without manual operations and at extremely low costs, with an automated assembly method.

Abstract: Assembly method for backsheet for photovoltaic panels with conductive interface elements intended to simplify the electrical connection of the terminal points of the circuit to the back junction box. The conductive elements are of the non-through type through the backsheet, with double contacting face, and are integrated on the front side towards the cells within recessed seats and in correspondence of through-holes in such a way as to enable an electrical connection by contact from the back side through the holes, in a guided way, by means of respective conductive elements protruding and fastened to the junction box. In particular, such a simplified contacting solution can be realized with extreme precision, without manual operations and at extremely low costs, with an automated assembly method.

Abstract: The invention describes a conductive interconnection structure (10) to be applied to a photovoltaic module of the glass-glass type comprising: a conductive layer (200) comprising a predetermined layout of conductive material, a first lower layer (100) comprising encapsulating material and a second upper layer (300) comprising encapsulating material, wherein the conductive layer (200) is arranged between the first lower layer (100) and the second lower layer (300). The invention also describes a photovoltaic module (1000) of the glass-glass type comprising a conductive interconnection structure (10), a method for forming a conductive interconnection structure (10) for a photovoltaic module (1000) of the glass-glass type and a method for forming a photovoltaic module (1000) of the glass-glass type.

Abstract: Backsheet for photovoltaic panels with conductive interface elements intended to simplify the electrical connection of the terminal points of the circuit to the back junction box. The conductive elements are of the non-through type through the backsheet, with double contacting face, and are integrated on the front side towards the cells within recessed seats and in correspondence of through-holes in such a way as to enable an electrical connection by contact from the back side through the holes, in a guided way, by means of respective conductive elements protruding and fastened to the junction box. In particular, such a simplified contacting solution can be realized with extreme precision, without manual operations and at extremely low costs, with an automated assembly method.

Abstract: Backsheet for photovoltaic panels with conductive interface elements intended to simplify the electrical connection of the terminal points of the circuit to the back junction box. The conductive elements are of the non-through type through the backsheet, with double contacting face, and are integrated on the front side towards the cells within recessed seats and in correspondence of through-holes in such a way as to enable an electrical connection by contact from the back side through the holes, in a guided way, by means of respective conductive elements protruding and fastened to the junction box. In particular, such a simplified contacting solution can be realized with extreme precision, without manual operations and at extremely low costs, with an automated assembly method.

Abstract: Composite operating station and method of drilling and fixing for the continuous production of conductive backsheets with an integrated encapsulating and dielectric layer, for photovoltaic panels of the back-contact type. The composite operating station is automated and integrates a plurality of working processes carried out simultaneously in a cyclic sequence. In particular, it is based on a multifunction cylindrical roller which by rotating lays out the film of integrated encapsulating and dielectric material, heats it and presses it on the conductive layer of the supporting backsheet for the purpose of the fixing in a correct position, the roller being provided with openings to enable drilling from outside with a laser device and also to enable the forced suction from inside of the fumes and of the residues by means of an exhaust fan.

Abstract: Assembly method for backsheet for photovoltaic panels with conductive interface elements intended to simplify the electrical connection of the terminal points of the circuit to the back junction box. The conductive elements are of the non-through type through the backsheet, with double contacting face, and are integrated on the front side towards the cells within recessed seats and in correspondence of through-holes in such a way as to enable an electrical connection by contact from the back side through the holes, in a guided way, by means of respective conductive elements protruding and fastened to the junction box. In particular, such a simplified contacting solution can be realized with extreme precision, without manual operations and at extremely low costs, with an automated assembly method.

Abstract: The present invention provides a method for producing a back-contact back-sheet for a photovoltaic module comprising back-contact cells. The method comprising providing a substrate (210) having an outer surface (210os) facing the air-side of the photovoltaic module and an inner surface (210is) opposite the outer surface (210os) and facing the inside of the photovoltaic module. A layer of electrically conductive material (220) adapted to be formed as a connecting circuit (220c) to the electrodes of the solar cells is then applied to the substrate (210). The application of the layer of electrically conductive material (220) to the substrate (210) is performed in such a way that the layer of electrically conductive material (220) fixedly adheres to the inner surface (210is) of the substrate (210). The layer of electrically conductive material (220) is then processed so as to form the connecting circuit (220c).

Abstract: The present invention provides for a multi-layered structure adapted to be applied to the surface of a back-contact back-sheet for a photovoltaic module comprising back-contact solar cells. The multi-layered structure comprises a non-extendible intermediate layer (240) comprised of a dielectric material. The multi-layered structure further comprises an upper layer (280) of an encapsulating material coupled to the upper surface (242) of the intermediate layer, as well as a lower layer (270) of a thermo-adhesive material coupled to the lower surface (244) of the intermediate layer (240). The multi-layered structure also has a plurality of through-holes pierced at predetermined positions.

Abstract: A method for the production of a photovoltaic module comprising back-contact solar cells. A lower encapsulating layer, followed by an alignment and an application of the lower encapsulating layer to the inner surface of the back-contact back-sheet. The lower encapsulating layer, comprises a lower surface facing the back-contact back-sheet and an upper surface opposite the lower surface. The method includes adhesion of one or more predetermined portions of the lower surface of the encapsulating layer to the back-contact back-sheet, having each portion a predetermined superficial area which is lower than the total area of the lower surface of the lower encapsulating layer. The adhesion of the lower encapsulating layer is followed by the application of the lower encapsulating layer to the back-contact back-sheet.

Abstract: Automatic assembly method of a photovoltaic panel with cells of the back-contact type provided with a conductive backsheet with a thermoplastic encapsulating layer; the loading of the cells occurs in combination with their pre-fixing in a combined station sequentially placed before the superimposition of the upper encapsulating layer and after the laying of the conductive adhesive. The loading is carried out with a first device of the automatic mechanical hand type which takes a group of cells, aligns them with the back contacts in correspondence of the holes and lays them vertically from above. Furthermore, a second device of the presser-heater type carries out the pre-fixing of the cells holding them in the final position also with localized heating on at least one portion of each cell in such a way as to activate the adhesive function of the underlying thermoplastic encapsulating layer. A combined loading and pre-fixing station is also disclosed.

Abstract: Automatic production system and production process for the automatic manufacturing of conductive backsheets with an integrated encapsulating and dielectric layer, for photovoltaic panels of the back-contact type. The system includes operating stations in sequence and is made up of at least one main line combined with a secondary line having a flow converging to a station of calibrated superimposition with fixing. The main line, on trays on a continuous conveying system, arranges and prepares the back supporting and conductive layer, whereas the secondary line forms the encapsulating and dielectric multi-layer element holed in correspondence of the electrical contacts comprising an automatic picking device which takes, roto-translates and holds said multi-layer element during processing and releases it only after the calibrated superimposition with fixing.

Abstract: Automatic assembly method of a photovoltaic panel with cells of the back-contact type provided with a conductive backsheet with a thermoplastic encapsulating layer; the loading of the cells occurs in combination with their pre-fixing in a combined station sequentially placed before the superimposition of the upper encapsulating layer and after the laying of the conductive adhesive. The loading is carried out with a first device of the automatic mechanical hand type which takes a group of cells, aligns them with the back contacts in correspondence of the holes and lays them vertically from above. Furthermore, a second device of the presser-heater type carries out the pre-fixing of the cells holding them in the final position also with localised heating on at least one portion of each cell in such a way as to activate the adhesive function of the underlying thermoplastic encapsulating layer. A combined loading and pre-fixing station is also disclosed.

Abstract: Backsheet for photovoltaic panels with conductive interface elements intended to simplify the electrical connection of the terminal points of the circuit to the back junction box. The conductive elements are of the non-through type through the backsheet, with double contacting face, and are integrated on the front side towards the cells within recessed seats and in correspondence of through-holes in such a way as to enable an electrical connection by contact from the back side through the holes, in a guided way, by means of respective conductive elements protruding and fastened to the junction box. In particular, such a simplified contacting solution can be realized with extreme precision, without manual operations and at extremely low costs, with an automated assembly method.

Abstract: Composite operating station and method of drilling and fixing for the continuous production of conductive backsheets with an integrated encapsulating and dielectric layer, for photovoltaic panels of the back-contact type. The composite operating station is automated and integrates a plurality of working processes carried out simultaneously in a cyclic sequence. In particular, it is based on a multifunction cylindrical roller which by rotating lays out the film of integrated encapsulating and dielectric material, heats it and presses it on the conductive layer of the supporting backsheet for the purpose of the fixing in a correct position, the roller being provided with openings to enable drilling from outside with a laser device and also to enable the forced suction from inside of the fumes and of the residues by means of an exhaust fan.

Abstract: Automatic production system and production process for the automatic manufacturing of conductive backsheets with an integrated encapsulating and dielectric layer, for photovoltaic panels of the back-contact type. The system includes operating stations in sequence and is made up of at least one main line combined with a secondary line having a flow converging to a station of calibrated superimposition with fixing. The main line, on trays on a continuous conveying system, arranges and prepares the back supporting and conductive layer, whereas the secondary line forms the encapsulating and dielectric multi-layer element holed in correspondence of the electrical contacts comprising an automatic picking device which takes, roto-translates and holds said multi-layer element during processing and releases it only after the calibrated superimposition with fixing.

Abstract: Apparatus and method for the automatic assembly of photovoltaic panels with back-contact architecture, the apparatus comprising a series of six stations that are configured in sequence in a carousel with recirculation of trays and a control device, which is adjacent to one or more of the stations, for controlling the correctness of the processes performed, the control device enabling the processing or the mere transit of the tray into the subsequent station by comparing the actual state with a predefined state. If one or more of the controls performed in the transfers between the six stations yields a negative outcome regarding the correctness of the operation performed previously, the control device enables the mere transit of the tray with its content to the subsequent stations until it reaches the first station without undergoing any tipping.

Abstract: The present invention proposes a back-contact back-sheet for photovoltaic modules comprising back-contact cells and a method of manufacturing thereof. The back-contact back-sheet comprises an insulating substrate upon which a connecting circuit is attached. The back-contact back-sheet further comprises at least a region indented towards the air-side of the photovoltaic module. The indentation is performed is performed in a portion of the back-contact back-sheet comprising the connecting circuit. A through-hole is then formed within the indented region so as to bring into communication the surface of the connecting circuit exposed towards the inside of the photovoltaic module with the face of the back-contact back-sheet facing the air-side of the photovoltaic module.

Abstract: A method for the production of a photovoltaic module comprising back-contact solar cells (600) is proposed. The method comprises the realization of a back-contact back-sheet (200). The method comprises the provision of a lower encapsulating layer (400, 1000), followed by an alignment and an application of the lower encapsulating layer (400, 1000) to the inner surface (200if) of the back-contact back-sheet (200). The lower encapsulating layer (400, 1000), comprises a lower surface facing the back-contact back-sheet (200) and an upper surface opposite the lower surface. The method proposes to cause the adhesion of one or more predetermined portions of the lower surface of the encapsulating layer (400, 1000) to the back-contact back-sheet (200), having each portion a predetermined superficial area which is lower than the total area of the lower surface of the lower encapsulating layer (400, 1000).

Abstract: Apparatus and method for the automatic assembly of photovoltaic panels with back-contact architecture, the apparatus comprising a series of six stations that are configured in sequence in a carousel with recirculation of trays and a control device, which is adjacent to one or more of the stations, for controlling the correctness of the processes performed, the control device enabling the processing or the mere transit of the tray into the subsequent station by comparing the actual state with a predefined state. If one or more of the controls performed in the transfers between the six stations yields a negative outcome regarding the correctness of the operation performed previously, the control device enables the mere transit of the tray with its content to the subsequent stations until it reaches the first station without undergoing any tipping.