Abstract

Assembly method of a photovoltaic panel with back-contact solar cells of crystalline silicon, which provides to print ECA adhesive directly on the contacts of the cells and to immediately load and pre-fix the printed cells. The method includes a macro-phase including operating sub-phases, simultaneous and coordinated with respect to each other: a first sub-phase of oriented loading of the cells with the contacts facing upwards on a mobile tray, a second sub-phase of silkscreen printing of ECA on the contacts, a third sub-phase of control of the laying carried out and of optional re-positioning of the screen, a fourth sub-phase of overturning of the printed cells, a fifth sub-phase of oriented transport of a string of cells up to positioning, a sixth sub-phase of pre-fixing. An automatic assembly plant is also disclosed having a combined station that allows for execution of the macro-phase.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/0224 - Electrodes
• H01L 31/049 - Protective back sheets
• H01L 31/048 - Encapsulation of modules
• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
• H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or

Abstract

An assembly method and a combined and bivalent workstation for automatically assembling photovoltaic panels, with printing of ECA on cell portions and progressive arrangement with a partial superimposition on the contacts, pre-forming shingled strings in a continuous cycle, which are ready for loading on a backsheet, without dry-curing. The method provides a macro-phase of lay-up entirely made in the station, with simultaneous and coordinated sub-phases: picking of portions with a first handler and control, oriented loading on a vacuum belt, control of positioning on the belt, printing of ECA, control of printing and positioning, progressive superimpositions on a shuttle-tray with bidirectional translation coordinated with a second handler with chocked vacuum, picking of the shingled string with a third handler, control of string alignment, loading and pre-fixing. Vision systems are integrated for the execution of said sub-phases.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H02S 20/25 - Roof tile elements
• B65H 29/24 - Delivering or advancing articles from machinesAdvancing articles to or into piles by air-blast or suction apparatus
• H01L 31/048 - Encapsulation of modules
• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells

Abstract

A method and related automatic production plant are disclosed for the silk-screen printing of inks or conductive pastes on photovoltaic cells or wafers, with an integrated handling system of the LSM moving coils drive type, wherein multiple shuttles with on-board coils act on a rail with permanent magnets in an independent but coordinated way, synchronous and/or asynchronous with respect to each other, to simultaneously perform missions different from each other in such a way as to advantageously carry out the printing operating steps provided by the method. Each shuttle is provided with an equipped tray of the removable type which is specifically configured to carry out the automated processing of the single cell, it also being intended to interact with the plant.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• B41F 15/12 - Machines with auxiliary equipment, e.g. for drying printed articles
• H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
• H01L 21/677 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for conveying, e.g. between different work stations

Abstract

A handling system with independent and coordinated shuttles for industrial automation, of the LSM moving coils drive type, wherein multiple shuttles with on-board coils act on a rail with permanent magnets in an independent but coordinated way, synchronous and/or asynchronous with respect to each other, with a high level of speed, precision in positioning and versatility of use. The system is particularly suitable for the automated machining of flat semi-finished products such as photovoltaic cells, printed circuits and other circuit boards or for the transport and filling of containers such as phials or flacons.

IPC Classes  ?

• B65G 54/02 - Non-mechanical conveyors not otherwise provided for electrostatic, electric, or magnetic
• B65G 35/06 - Mechanical conveyors not otherwise provided for comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path

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.

IPC Classes  ?

• H01L 31/049 - Protective back sheets
• H01L 31/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof - Details
• H02S 40/34 - Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes

Abstract

Assembly method (10) of a photovoltaic panel with back-contact solar cells of crystalline silicon, which provides to print ECA adhesive directly on the contacts of the cells (303) and to immediately load and pre-fix the printed cells; it comprises a macro-phase (11) including operating sub-phases (11a- 11f), simultaneous and coordinated with respect to each other: a first sub- phase (1 1a) of oriented loading of the cells with the contacts facing upwards on a mobile tray, a second sub-phase (11b) of silkscreen printing of ECA on the contacts, a third sub-phase (11c) of control of the laying carried out and of optional re-positioning of the screen, a fourth sub-phase (11d) of overturning of the printed cells, a fifth sub-phase (11e) of oriented transport of a string of cells up to positioning, a sixth sub-phase (11f) of pre-fixing. The invention also relates to an automatic assembly plant (20) comprising a combined station (S2) that allows to execute said macro-phase (11, 11a- 11f).

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
• H01L 31/049 - Protective back sheets
• H01L 31/048 - Encapsulation of modules
• H01L 31/0224 - Electrodes

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.

IPC Classes  ?

• H01L 31/049 - Protective back sheets
• H02S 40/34 - Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
• H01L 31/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof - Details

Abstract

A plant and system for the automatic horizontal assembly of photovoltaic panels with front-back-contact solar cells of crystalline silicon, of the type called H-type, the contacting being carried out at a temperature lower than 150° C. also with the pre-fixing of conductive elements onto the encapsulating layer. The plant and system solve the main problems of the conventional stringing systems and provides high production capacity with a precise positioning of the components. The plant is made up of single workstations of the modular type which are arranged sequentially in a linear series, individually equipped according to the specific working process, being adjacent and laterally open to be crossed by the conveying line of the trays containing the panels being worked. After the automatic assembly in the plant, the panels are ready to be rolled in conventional furnaces.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
• H01L 21/677 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for conveying, e.g. between different work stations

Abstract

Innovative method and related automatic production plant (30) for the silk- screen printing of inks or conductive pastes on photovoltaic cells (40) or wafers, with an integrated handling system of the LSM moving coils drive type, wherein multiple shuttles (10) with on-board coils (102) act on a rail (20) with permanent magnets (201) in an independent but coordinated way, synchronous and/or asynchronous with respect to each other, to simultaneously perform missions different from each other in such a way as to advantageously carry out the printing operating steps (F1-10) provided by said method; to this purpose, each shuttle is provided with an equipped tray (12a) of the removable type which is specifically configured to carry out the automated processing of the single cell, it also being intended to interact with said plant.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Innovative handling system (1) with independent and coordinated shuttles for industrial automation, of the LSM moving coils drive type, wherein multiple shuttles (10) with on-board coils (102) act on a rail (20) with permanent magnets (201) in an independent but coordinated way, synchronous and/or asynchronous with respect to each other, with a high level of speed, precision in positioning and versatility of use; the invention is particularly suitable for the automated machining of flat semi-finished products such as photovoltaic cells, printed circuits and other circuit boards or for the transport and filling of containers such as phials or flacons.

IPC Classes  ?

• H01L 21/677 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for conveying, e.g. between different work stations
• B65G 54/02 - Non-mechanical conveyors not otherwise provided for electrostatic, electric, or magnetic
• B65G 35/06 - Mechanical conveyors not otherwise provided for comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path
• H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches

Abstract

Back-contact photovoltaic cell (10) of crystalline silicon of the Metal Wrap Through or MWT type, for a dedicated conductive backsheet (20); said cell (10) having holes for the crossing of the collected electrons at the front and punctiform back contacts for the charges of opposite sign, N holes (102) and P points (104) respectively, arranged according to a configuration of the contacts which is also advantageous for the purpose of automated production and for the association with a conductive backsheet (20) integrating one single conductive layer (200) intended to connect by strings the N holes and P points of all the cells, completing the electrical circuitry of the whole panel. The cell (10) comprises 24 N holes (102) and 15 P points (104), respectively aligned in 4 N rows (103) of 6 holes each and in 3 P rows (105) of 5 points each, with particular centre-to-centre distances.

IPC Classes  ?

• H01L 31/0224 - Electrodes

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.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/048 - Encapsulation of modules
• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
• H01L 31/049 - Protective back sheets

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.

IPC Classes  ?

• H01L 31/049 - Protective back sheets
• H01L 31/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof - Details
• H02S 40/34 - Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes

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. The system is combined with a control system made up of at least four devices integrated with one another to enable calibration and check the automated processes.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
• H01L 31/049 - Protective back sheets
• H02S 40/34 - Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes

Abstract

A plant and system for the automatic horizontal assembly of photovoltaic panels with front-back-contact solar cells of crystalline silicon, of the type called H-type, the contacting being carried out at a temperature lower than 150° C. also with the pre-fixing of conductive elements onto the encapsulating layer. The plant and system solve the main problems of the conventional stringing systems and provides high production capacity with a precise positioning of the components. The plant is made up of single workstations of the modular type which are arranged sequentially in a linear series, individually equipped according to the specific working process, being adjacent and laterally open to be crossed by the conveying line of the trays containing the panels being worked. After the automatic assembly in the plant, the panels are ready to be rolled in conventional furnaces.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
• H01L 21/677 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for conveying, e.g. between different work stations

Abstract

Compact apparatus for the semi-automatic horizontal assembly of photovoltaic panels with solar cells, made up of a multi-function workstation in the form of a pilot system integrating multiple working and conveying means which carry out the various operations concomitantly and in a coordinated way. On the sides of the working surface there is the loading zone of the cells, the loading zone of the conductive ribbons and a pair of longitudinal rails which are intended to guide two mobile gantries, which roto-translate above the working surface, from one loading zone to the other, being equipped for the purpose of assembly. In particular, the compact apparatus is versatile in use and allows to obtain already in the experimental laboratory phases the levels of accuracy and control of an industrial system, for the purpose of optimizing the product and the assembly technologies reducing wastes and faults.

IPC Classes  ?

• H02S 99/00 - Subject matter not provided for in other groups of this subclass
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H02K 3/28 - Layout of windings or of connections between windings
• H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
• H02K 11/04 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
• H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
• H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines

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.

IPC Classes  ?

• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
• H01L 31/048 - Encapsulation of modules
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
• H01L 21/677 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for conveying, e.g. between different work stations

Abstract

Automatic assembly method (10, 11 ) of a photovoltaic panel with cells of the back-contact type provided with a conductive backsheet (300) with a thermoplastic encapsulating layer; the loading of the cells (306) occurs in combination with their pre-fixing (11 ) in a combined station (20) sequentially placed before the superimposition of the upper encapsulating layer and after the laying of the conductive adhesive (310). Said loading is carried out with a first device (210) of the automatic mechanical hand type which takes a group of cells (306), aligns them with the back contacts (307) in correspondence of the holes (305) and lays them vertically from above; furthermore, a second device (220) of the presser-heater type carries out the pre-fixing of said 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 (304). The present invention also describes the combined loading and pre-fixing station (20).

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Composite operating station and method of drilling and fixing (10) for the continuous production of conductive backsheets (300) with an integrated encapsulating and dielectric layer, for photovoltaic panels of the back- contact type. Said 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 (100) which by rotating lays out the film of integrated encapsulating and dielectric material, (308), heats it and presses it on the conductive layer (302) of the supporting backsheet for the purpose of the fixing in a correct position, said roller being provided with openings (101) to enable drilling from outside with a laser device (120) and also to enable the forced suction from inside of the fumes and of the residues by means of an exhaust fan (130).

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Backsheet (10, 20) for photovoltaic panels (100, 200) with conductive interface elements (130a-d) intended to simplify the electrical connection of the terminal points of the circuit to the back junction box (141 ); said conductive elements (130a-d) are of the non-through type through the backsheet, with double contacting face (131, 132), and are integrated on the front side (114, 214) towards the cells within recessed seats (111, 211) and in correspondence of through-holes (110, 210) in such a way as to enable an electrical connection by contact from the back side (115, 215) through said 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.

IPC Classes  ?

• H01L 31/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof - Details
• H01L 31/048 - Encapsulation of modules
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Automatic production system (10) and production process (20a-b) for the automatic manufacturing of conductive backsheets (300) 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 (11 ) combined with a secondary line (12) having a flow converging to a station of calibrated superimposition with fixing (113). 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 (308) holed in correspondence of the electrical contacts comprising an automatic picking device (126) which takes, roto-translates and holds said multi-layer element during processing and releases it only after said calibrated superimposition with fixing. The system (10) is combined with a particular control system (140) made up of at least four devices (141-4) integrated with one another to enable calibration and check the automated processes.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

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.

IPC Classes  ?

• H01L 31/048 - Encapsulation of modules
• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Goods & Services

Fissionable material for nuclear energy; chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry. Silver paste; paints, varnishes, lacquers; preservatives against rust and against deterioration of wood; colorants; mordants; raw natural resins; metals in foil and powder form for painters, decorators, printers and artists. Electrical energy; industrial oils and greases; lubricants; dust absorbing, wetting and binding compositions; fuels (including motor spirit) and illuminants; candles and wicks for lighting. Metallic pastes for screen printing on printed circuit board; metallic pastes for screen printing on photovoltaic cells; common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores. Condensing installations; heat exchangers (parts of machines); machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs; automatic vending machines. Apparatus for checking heat, air and the production of sanitary water; boiler control instruments; capacitors; air analysis apparatus; scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; compact discs, DVDs and other digital recording media; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment, computers; computer software; fire-extinguishing apparatus. Air conditioning apparatus (not for vehicles); solar thermal collectors (heating); boilers, other than parts of machines; heating boilers; flues for heating boilers; boiler pipes (tubes) for heating installations; heat accumulators; heat regenerators; heating apparatus; heat pumps; radiators (heating); radiators, electric; humidifiers for central heating radiators; thermostatic valves (parts of heating installations); condensing boilers; gas condensers, other than parts of machines; air cooling apparatus; air driers (dryers); installations for conditioning air; air filtering installations; air reheaters; hot air apparatus; air conditioning apparatus; air conditioning installations; refrigerating apparatus and machines; refrigerating appliances and installations; refrigerators; cooling appliances and installations; heat exchangers, not parts of machines; apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes. Paper, cardboard and goods made from these materials, not included in other classes; printed matter; bookbinding material; photographs; stationery; adhesives for stationery or household purposes; artists' materials; paint brushes; typewriters and office requisites (except furniture); instructional and teaching material (except apparatus); plastic materials for packaging (not included in other classes); printers' type; printing blocks. Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal. Retail and wholesale services, also on-line, of energy, energy production systems powered by renewable and non-renewable sources; advertising; business management; business administration; office functions (services on behalf of third parties). Consultancy in the field of project financing in the energy sector; insurance; financial affairs; monetary affairs; real estate affairs (services on behalf of third parties). Building construction; repair; installation services (services on behalf of third parties). Telecommunications (services on behalf of third parties). Distribution of energy; transport; packaging and storage of goods; travel arrangement (services on behalf of third parties). Production of energy; air purification; treatment of materials (services on behalf of third parties). Training courses for professionals in the field of energy; education; providing of training; entertainment; sporting and cultural activities (services on behalf of third parties). Consultancy in the field of energy-saving; scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software (services on behalf of third parties).

Abstract

Assembly method (10) of a photovoltaic panel with back-contact solar cells of
crystalline silicon, which provides to
print ECA adhesive directly on the contacts of the cells (303) and to
immediately load and pre-fix the printed cells, it comprises a
macro-phase (11) including operating sub-phases (11a- 11f), simultaneous and
coordinated with respect to each other a first sub- phase
(11a) of oriented loading of the cells with the contacts facing upwards on a
mobile tray, a second sub-phase (11b) of silkscreen printing
of ECA on the contacts, a third sub-phase (11c) of control of the laying
carried out and of optional re-positioning of the screen, a fourth
sub-phase (11d) of overturning of the printed cells, a fifth sub-phase (11e)
of oriented transport of a string of cells up to positioning, a
sixth sub-phase (11f) of pre-fixing The invention also relates to an automatic
assembly plant (20) comprising a combined station (S2)
that allows to execute said macro-phase (11, 11a- 11f)

IPC Classes  ?

• H10F 19/80 - Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
• H10F 19/85 - Protective back sheets
• H10F 19/90 - Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers
• H10F 71/00 - Manufacture or treatment of devices covered by this subclass
• H10F 77/20 - Electrodes

Abstract

An assembly method and multi-purpose workstation for automatically assembling photovoltaic panels, with printing of electrically conductive adhesive on cell portions and progressive arrangement with a partial superimposition on the contacts, pre-forming shingled strings in a continuous cycle, which are ready for loading on a backplate without dry-curing. The method provides a macro-phase of lay-up entirely made in said station, with simultaneous and coordinated sub-phases: picking of portions with a first handler and control; oriented loading on a vacuum belt; control of positioning on the belt; printing of adhesive; control of printing and positioning; progressive superimpositions on a shuttle-tray with bidirectional translation coordinated with a second handler with choked vacuum; picking of the shingled string with a third handler; control of string alignment; and loading and pre-fixing. Vision systems are integrated for the execution of said sub-phases.

IPC Classes  ?

• H02S 40/30 - Electrical components
• H02S 99/00 - Subject matter not provided for in other groups of this subclass
• H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material
• H05K 13/00 - Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components