EP2689468A1 - Système et procédés pour traiter électrostatiquement au moins un élément d'au moins une superposition d'une pluralité d'éléments de module solaire - Google Patents

Système et procédés pour traiter électrostatiquement au moins un élément d'au moins une superposition d'une pluralité d'éléments de module solaire

Info

Publication number
EP2689468A1
EP2689468A1 EP12714842.7A EP12714842A EP2689468A1 EP 2689468 A1 EP2689468 A1 EP 2689468A1 EP 12714842 A EP12714842 A EP 12714842A EP 2689468 A1 EP2689468 A1 EP 2689468A1
Authority
EP
European Patent Office
Prior art keywords
atleast
module
lay
members
previous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12714842.7A
Other languages
German (de)
English (en)
Inventor
Roman Polo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meyer Burger AG
Original Assignee
Meyer Burger AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Meyer Burger AG filed Critical Meyer Burger AG
Publication of EP2689468A1 publication Critical patent/EP2689468A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10816—Making laminated safety glass or glazing; Apparatus therefor by pressing
    • B32B17/10825—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts
    • B32B17/10834—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10018—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising only one glass sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/021—Treatment by energy or chemical effects using electrical effects
    • B32B2310/025—Electrostatic charges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/12—Polyvinylhalogenides containing fluorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/12—Photovoltaic modules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention generally relates to photovoltaic components, and more particularly, to systems and methods for electrostatically handling atleast a member of atleast a lay-up of a plurality of solar module members to in a secure, robust, cost effective, and environmental friendly manner.
  • the manufacturing of solar modules consisting of a lay-up of atleast two material members.
  • the material member may be a stiff member, a sealant, an active member or a back member.
  • the stiff member may include glass, reinforced plastic or ceramics.
  • the sealant may include EVA, PVB, and Silicon.
  • the active member may contain any type of solar cells, crystalline or thin film.
  • the back member may contain Polyvinyl fluoride. These materials are commonly known in the production of solar modules, especially in laminated solar modules. They may however also be used in other processing methods such as curtain coating or injection moulding.
  • the stream of air over the member(s) may displace the member(s) from its/their desired position(s). Accordingly, the lay-up can not be moved as fast as desired.
  • the bubbles thus formed in the EVA may pop leaving an area without EVA. If the bubble pops as it is small, the EVA may be pulled aside a little bit, but the remaining void in the EVA may be small enough to be closed later during lamination when the EVA is molten and start to flow as a result of the pressure applied. If the bubble is larger, the EVA may be pulled to the side too much to fill the gap in the later processing, leaving a range with less or no EVA, possibly collecting gasses and moisture during lamination and making the adhesive function of the EVA less effective and possibly damaging the cells over time. In addition, voids may form bubbles in the module that is not aesthetically pleasing.
  • the members on all parts of the module may not come in close contact before lamination as there may be regions with more and less air between the module members. Since during lamination normally heat is applied from one side, the heat flow may be different in different sections of the module: where air is trapped the transport is hindered. The different heat flow may make the curing of the EVA less homogeneous and or the heat flow may take longer in regions with entrapped air to heat-up the complete lay-up to the desired temperature. Especially if crystalline cells are used, air will be present in the regions between the cells.
  • Prior art discloses numerous techniques for laminating solar modules, for example, international publication number WO/2010/143117 teaches a method of laminating solar modules.
  • the top of the vacuum chamber is not especially close to the top member of the lay-up. If the hot glass plate is placed on the lay-up from above inside the vacuum chamber it may not touch the lay-up (especially bubbles forming on it) and therefore the vacuum chamber has to be made relatively large, having a negative influence on the time needed to evacuate all air. Accordingly, more time is needed to complete the lamination process, thus making the process slow.
  • the present invention provides a system for handling and permanently joining atleast a lay-up of plurality of material members.
  • the system comprises atleast a holding member configured to hold atleast a member of the lay-up, atleast a charging unit capable of charging the lay-up, atleast a holding unit configured to hold atleast any of the member of the lay-up and the holding member, and atleast means for joining the lay-up members permanently.
  • Atleast a transportation unit may be adapted to transport atleast the lay-up,
  • the present invention provides a method for transporting atleast a lay-up of a plurality of members.
  • the method comprises the steps of sticking a plurality of members of the lay-up together and transporting the lay-up.
  • the present invention provides a method for forming atleast a solar module of a plurality of module members.
  • the method comprises the steps of positioning atleast a first module member at a predefined position on a holding member, charging electrostatically atleast the first module member as to stick to each other at the predefined position on the holding member, joining atleast the first module member with atleast a second module member to form atleast a part of the solar module.
  • the holding member include atleast one of a base member, the second module member, a system member or any combination thereof. Since the lay-up normally is non-conductive and generally the lay-up is placed on the holding member, therefore charges in the lay-up may displaced by electrostatic induction thus making the holding member charged.
  • the order of said steps of the method, especially the positioning and the charging step, may be chosen freely.
  • the step of joining of the plurality of module members to form the solar module may preferably be adapted after the steps of positioning and the charging the members of the lay-up.
  • FIG. 1 illustrates a method for forming atleast a solar module, according to an exemplary embodiment of the present invention
  • FIG. 2 illustrates a system for handling and permanently joining atleast the lay-up of plurality of members, according to an exemplary embodiment of the present invention
  • FIG. 3 illustrates an exemplary build up of a lay-up of plurality of module members
  • FIG. 3A illustrates an exemplary lay-up of an EVA and a solar cell
  • FIGS. 3B to 3G illustrate an exemplary formation of bubbles in an encapsulant during lamination and the negative effect of said bubbles formation
  • FIG. 3H illustrates an exemplary high height processing chamber
  • FIG. 31 illustrates an exemplary low height processing chamber
  • FIG. 4A illustrates an exemplary charging device with an electrode, held in the vicinity of the lay-up of two module members
  • FIG. 4B illustrates an exemplary charging device with the electrode, held in the vicinity of the lay-up of multiple module members
  • FIG. 4C illustrates an exemplary transportation unit
  • FIG. 4D illustrates removal of charges from the lay-up, according to an exemplary embodiment of the present invention
  • FIGS. 5A to 5C illustrate two transport systems adapted to handover the lay-up among the different transport systems, according to an exemplary embodiment of the present invention
  • FIG. 6A illustrates a first module member stuck with a system member, according to an exemplary embodiment of the present invention
  • FIG. 6B illustrates the holding member as member of the lay-up, wherein the lay-up is not attached to the system member, according to an exemplary embodiment of the present invention
  • FIG. 6C illustrates a lay-up of the first module member and the second module member attached to the holding member, according to an exemplary embodiment of the present invention
  • FIG. 6D illustrates the lay-up of plurality of the module members electrostatically stuck to a cover of the system, according to an exemplary embodiment of the present invention.
  • FIG. 6E illustrate the lay-up of plurality of module members electrostatically joined together stuck to a bottom side of a release sheet of the system, according to an exemplary embodiment of the present invention.
  • the photovoltaic device may include atleast one of a waver, a solar cell, two interconnected solar cells, a lay-up of solar cells, parts of the lay-up, a string, a matrix, a solar module, a glass plate, a plastic member, a temporary member or any combination thereof.
  • Solar cells may be of any technology such as mono-crystalline and poly- crystalline, thin film, hetero junction, HIT etc.
  • the term 'member' , 'layer', 'material member', 'sheet' and 'material' may also be used herein interchangeably.
  • the present invention provides improved systems and methods to achieve secured, controlled and optimized production and handling of solar module.
  • the system of the present invention may be mass produced inexpensively and provides user an easy, robust, efficient, secure, cost effective, environment friendly and productive way of solar module formation by atleast electrostatically charging atleast a member of the lay-up without damaging or deforming the lay-up.
  • the present invention is capable of providing effective means to optimized highest attainable processing speed and accelerations to prevent undesired movement or displacement of the module members of the lay-up.
  • the lay-up may be electrostatically charged.
  • electrostatically charging a material for example, the lay-up
  • electrons are added or removed to give the lay-up a negative or positive charge respectively.
  • charges may be moved inside the material to form an electric dipole, charging the material locally, while its net charge remains the same, e.g. neutral. It is known that two materials with unequal charge attract each other. Accordingly, the present invention is capable of utilising this effect for electrostatically temporarily sticking members of the lay-up.
  • the present invention is capable of charging atleast the first module member electrically as to stick to a desired member, thereby facilitating secure, robust, easy, and convenient handling of the member in conjunction with the member.
  • the member may be given a net charge: charging by friction, charging by contact, and charging by induction. If the member is rubbed (friction) with another suitably picked material, electrons have the tendency to be transferred from or to that material. If a charged object touches (contacts) the member, some charge will be transferred between the charged object and the member, thereby charging the member with the same sign as the charge of the object. In the case of charging by induction, a charged object is used, but this time it is only brought close to the member and does not touch the member. If the conductor is connected to ground, electrons will either flow on to the conductor or away from the conductor. When the ground connection is removed, the conductor will have a charge opposite in sign to that of the charged object. If resistivity of the member is high, the charge may remain in the member regardless of the grounding.
  • a charging device with an electrode, for example: electrode with 12 KV applied to the charging device.
  • the electrode is held in the vicinity of the materials or lay-up to be charged.
  • the electrons in the module members (which normally are insulators), are repelled by this voltage, making the upper surface of the lay-up negatively charged and the lower surface of the lay-up positively charge. This is an example of the above mentioned induction phenomenon.
  • FIG. 1 illustrates a method 100 for forming atleast a solar module having a plurality of members 10a, 10b, 10c, ... (also referred to as 'module members' or 'lay-up members'), as shown in FIG. 3, according to an exemplary embodiment of the present invention.
  • the method 100 comprises the steps of positioning atleast a first module member 10a at a predefined position on a holding member 20 at a step 112, charging electrostatically atleast the first module member 10a as to stick to each other at the predefined position on the holding member 20 at a step 114, joining atleast the first module member 10a with a second module member 10b to form atleast a part of the solar module at a step 116.
  • the order of the steps of the method 100, specifically the positioning step 112 and the charging steps 114, may be chosen freely.
  • the step 116 of joining of the plurality of module members to form the solar module may preferably be adapted after the steps of positioning and the charging the module members of the lay-up.
  • the first module member 10a is capable of electrostatically sticking to atleast a part of a processing chamber.
  • the holding member 20 includes atleast one of a base member, the second module member 10b, a system member or any combination thereof.
  • the system member may include atleast one of a conveying system, a robot, a tray capable of holding the member, a transport sheet, a release sheet, a conveyor belt, a rotatable member, a moving member, a static member of a vacuum chamber, a static member of a processing chamber or any combination thereof.
  • the system member may be conductive or non-conductive.
  • the release sheet and transport sheet is adapted to transport atleast the first module member to an area where the first module member is formed into the solar module.
  • a charging unit is adapted to charge atleast the first module member.
  • the charging mode includes atleast one of a friction charging mode, a contact charging mode, an induction charging mode or any combination thereof.
  • the second module member includes atleast one of an encapsulant member, a photo active member, a cover member or any combination thereof.
  • the plurality of members 10a, 10b, 10c, ... may include atleast any two of an encapsulants member, a photovoltaic member and a cover member.
  • the module members 10a, 10b, 10c, ... may be joined by means 80 of atleast one of heat, pressure, curing, and by other joining means.
  • the active member may be formed on a glass plate.
  • the cover member and the photovoltaic member may be joined before carrying out the method 100.
  • the method 100 may comprises the steps of sticking a plurality of members 10a, 10b, 10c, of the lay-up 10' together and transporting the lay-up 10' to a desired location or station.
  • FIG. 2 illustrates a system 200 for handling and permanently joining atleast the lay-up 10' of plurality of members 10a, 10b, 10c, according to an exemplary embodiment of the present invention.
  • the system 200 comprises atleast a holding member 20 configured to hold atleast a member of the lay-up, atleast a charging unit 30 capable of charging atleast any of the members of the lay-up 10' and the holding member 20, and means 80 for joining the lay-up 10' permanently.
  • the term 'permanently' means atleast 10 or 20 years.
  • Permanently joining means forming a chemical and or physical bond between the layers of the lay-up as known for forming solar modules, such as laminating, curtain coating, moulding etc.
  • a transportation unit 40 may be adapted to transport atleast the lay-up 10'.
  • a process chamber being not much higher than atleast a largest bubble that occur, for example, a size of the largest bubble is smaller than atleast one of 10 mm, 2 mm or 1 mm, measured from the plane the layer extends in (as shown with 'h' and 'H' in FIGS. 31 and 3H) [0054]
  • FIG. 3 which illustrates an exemplary lay-up -up 10'.
  • the module members of the lay-up 10' include atleast an EVA 10b, atleast an active member 10a, a back member 10c.
  • the active member 10a may include any type of solar cells, crystalline, thin film or HIT.
  • the back member 10c may be glass member or Polyvinyl fluoride or any other suitable material.
  • FIGS. 3A to 3G which illustrate the second module member 10b of EVA placed on another member 10a, for example a solar cell.
  • the second module member 10b of a lay-up 10 are getting warm before the lay-up 10 is pressed together. If the top most member, for example the second module member 10b of the lay-up 10, is EVA, then the second module member 10b may melt as the vacuum is created. The air trapped below the second module member 10b may blows up the second module member 10b. Moreover the air trapped under the partially molten member 10b no longer feels any pressure from above and pushes the second module member 10b upwards bloating up the second module member 10b.
  • the bubbles 12 may pop (FIG. 3G) due to heating or while touching a hot object, leaving an area 14 (also referred to as 'void' or 'gap' or 'range') without member 10b.
  • the bubble 12 bloats.
  • the second module member 10b may be pulled aside a little bit (as shown in FIG. 3E), but the remaining void 14 in the second module member 10b (as shown in FIG. 3E) may be small enough to be closed later, for example, during lamination, the second module member 10b is molten and as the pressure is applied, the second module member 10b may fill the void 14.
  • the second module member 10b may be pulled to the side too much to fill the gap 14 in the later processing, leaving a range 14 with less member 10b (as shown in FIG. 3G), possibly collecting gasses and moisture during lamination and may making the adhesive function of the second module member 10b less effective.
  • the range 14 may form a bubble 14 in the lay-up 10 that may damage the solar cell and is not aesthetically pleasing.
  • the second module member 10b may be electrostatically stuck to the first module member 10a below the second module member 10b, thereby preventing the second module member 10b from bloating too much or at most forming small bubbles 12 that may not bloat-up as much and may be closed later.
  • the second module member 10b is molten and as the pressure is applied, the second module member 10b may close the bubbles 12.
  • the module members on all parts of the solar module come in close contact with each other, thereby formation of regions with less air between the module members. Since during lamination heat has to be transported from one member to the next adjacent member, the heat flow may be equal in different sections of the lay-up 10. The equal heat flow may make the curing of the EVA more homogeneous. Further, the heat flow may take less time in regions with entrapped air to heat-up the complete lay-up 10 to the desired temperature.
  • the first module member 10a may be a stiff member, a sealant, an active member or a back member.
  • the stiff member may include glass, reinforced plastic or ceramics.
  • the sealant may include EVA, PVB, and Silicon.
  • the first module member 10a may contain any type of solar cells, crystalline or thin film.
  • the back member 10c may be Polyvinyl fluoride.
  • FIG. 3H which illustrates an exemplary processing chamber 90' with high height ⁇ '.
  • the bigger bubbles 12 (as shown in FIG. 3H) may burst when the bubbles 12 touched the hot upper side 92 of the processing chamber 90'.
  • the processing chamber 90' may be vacuum chamber.
  • FIG. 31 illustrates a low height 'h' processing chamber 90, according to an exemplary embodiment of the present invention.
  • the processing chamber 90 needs to be configured high enough, for example, with height 'H' (as shown in FIG. 31).
  • the present invention is capable of keeping size of the bubbles 12 small (as shown in FIG. 31) as compared to the size of the bubbles 12 (as shown in FIG. 3H), such that the top side 92 of the vacuum chamber 90 may be closer to a top member 10c, for example, a glass plate, of the lay up 10.
  • the height 'h' vacuum chamber 90 may be reduced, thereby reducing the volume and time needed to evacuate the vacuum chamber 90.
  • the glass plate 10c must have a specific distance from the EVA 10b in order not to touch the bubbles 12.
  • the arrow in the FIGS. 31 shows the reduction in height 'H' of the vacuum chamber 90 (FIG. 31) for a system where the glass plate 10c is moved onto a lay-up of members back member 10c, EVA 10b, solar cell 10a, EVA 10b.
  • This configuration is especially significant if the glass plate 10c is placed on the lay-up from above inside the vacuum chamber 90.
  • the advantage of making the vacuum chamber 90 less high, i.e., with height 'h', is that the system may take less time to evacuate the vacuum chamber 90 to the desired level, thus making the lamination process faster.
  • the lay-up 10' In order to facilitate the handling of the lay-up 10', it may be electrostatically charged.
  • electrostatically charging the material for example, the lay-up 10', electrons may be added or removed to give the lay-up 10 a negative or positive charge respectively.
  • Two materials with opposite charge attract each other. Also members that are charged attract neutral members.
  • the electrostatically charged member may be positioned on the other member of the plurality of members 10a, 10b, 10c, ... in a defined way. This may be that two member that later are part of the laminate are positioned as to build the lay-up 10' or if one of the module members 10a, 10b, 10c, ... is adhered to the machine (system) part, it may be adhered thereto such that it may be moved by the machine part as to be placed on the lay-up 10'.
  • the lay up 10' is always a little bit bigger than the final module. This is adapted to handle tolerances and because the material tends to contract during lamination.
  • the electrostatically charged member is charged in atleast a manner including but not limiting to a defined manner, charged as it lays on the other member or machine part, member is not moved relative to the other member or machine part as long as it is charged.
  • FIGS. 4A and 4B which illustrate a charging unit 30 with an electrode 32 placed in the vicinity of the lay-up 10, according to an exemplary embodiment of the present invention.
  • the charging unit 30 with an electrode 32 of desired voltage may be adapted to electrostatically charging the lay-up 10'.
  • the electrode 32 may be held in the vicinity of the lay-up 10, i.e., the module members 10a, 10b, 10c, ., to be charged.
  • the electrons in the module members 10a, 10b, 10c, ... (which are insulators), may be repelled by this voltage, making the upper surface of the first module member 10a (as shown in FIG.
  • a holding member 20 the first module member 10a is placed on, is electrically conductive and grounded. Since ground is neutral, the down side of the first module member 10a is also neutral. Since the upper side of the first module member 10a is negative, the first module member 10a is still attracted to the holding member 20. If multiple members 10a, 10b, 10c, ... are used, the electrostatic induction may propagate over all members (as shown in FIG. 4B).
  • the present invention is capable of providing higher speeds and accelerations while preventing undesired movement or displacement of the module members of the lay-up 10a, 10b, 10c, .... It was found that the solar cells may be stuck to the encapsulants. This is unexpected since solar cells are conductive if light shines on them, which is normally the case in production.
  • the module members 10a, 10b, 10c, ... of the lay-up 10' may be stuck together electrostatically. If the module members, for example, members 10a, 10b, are flexible, then the module members 10a, 10b stuck together electrostatically may possess a higher stiffness, thereby making handling of the lay-up 10' easier.
  • Atleast one of the module members 10a, 10b, 10c, ... of the lay-up 10' may be a part of the solar module production system (also referred to as 'production system').
  • the member that is part of the production system, for example, a tray, to transport the lay-up 10', may also referred to as 'system member'.
  • the system member may be atleast one of a fix member, a movable or a rotatable member.
  • the system member may move faster and may have greater acceleration.
  • the adhering of the member of the lay up to the production system may be used to ensure the correct positioning of atleast the first module member.
  • the moving member 40 may be a holding plate where atleast one member of the lay up adheres to.
  • the holding plate may be part of the production system and by hold by manipulation means such as a robot. Since the materials adhere to the holding plate, the materials may be transported faster and without maintaining a horizontal position.
  • the production system may include atleast one of a laminator, curtain coating machine, moulding machine, production line, robot or any combination thereof.
  • the fix member may include a non-moving wall or surface of a vacuum chamber or processing chamber.
  • the first member may be negatively or positively charged by adding or removing the electrons to or from the first member.
  • the transportation unit 40 may include a transport sheet.
  • a material with woven glass sheet PTFE coated Antistatic may be used. The like material is beneficially used for the release sheet as well.
  • the module members 10a, 10b, 10c, ... of the lay-up 10 may be placed upon the transportation unit 40.
  • the transportation unit 40 may be electrically conductive and connected to ground, keeping the bottom side of lay-up 10 neutral while placed on a grounded holding member 20 and thus preventing the lay-up 10 from sticking to the holding member 20.
  • the lay-up 10 however, still sticking to the transportation unit 40.
  • an incremental build-up of the lay-up 10' or 10 may also be adapted.
  • the lay-up 10' or 10 may be build-up over multiple stations or locations, for example, a first person or worker places a first member, and for example the first module member 10a, on a transport sheet 40 and sticks the first module member 10a thereto. Then the first module member 10a may be moved to a second station where a second member, for example the second module member 10b may be applied to the lay-up 10' or 10, etc.
  • the transportation unit 40 may be stopped and started at the same time for all stations.
  • the transportation unit 40 may be an endless conveyor belt or be divided in multiple portions, each at its front end and probably also its trailing end being connected to a continuous chain drive.
  • FIG. 4D which illustrates removal of charges from the lay-up 10', according to an exemplary embodiment of the present invention. If the charging unit 30 is removed, the top member 10b of the lay-up 10' may be remains charged. The charge on the top of the second module member 10b of the lay-up 10' may attract dirt such as dust. To prevent this from happening, the charged on the top member 10b of the lay-up 10' may be removed with an electrical field.
  • the charges may also remove from within the lay-up 10'.
  • the removal of charges from the top member 10b of the lay-up 10, for example, may be done by bringing the top member 10b of the lay-up 10' in contact with a conductive member 50, for example, a metallic brush or a metallic role, connected to the ground. Since the positive charges on the lower side of the top member 10b may not flow thru the top member 10b (which is an insulator), the lay-up 10' or 10 may stick together.
  • an alternating electrostatic field may be adapted to remove atleast one of the positive and negative charges.
  • the positive and negative charges may also be atleast partially removed thru the connections of the active member, for example, the active member may be grounded or an alternating voltage may be applied.
  • the removal of charges may be done shortly before laminating, i.e., when the lay-up 10' may not have to be moved any more, or afterwards when the module members 10a, 10b, 10c, ... are laminated together. Removing the charges may also prevent persons, for example, workers, from getting injured.
  • charging and discharging of the lay- up 10' may be adapted between stations.
  • the lay-up 10' may be charged and discharged between stations, so that the workers themselves are not charged as much and hence protected from harmful effects of charge.
  • the plurality of members 10a, 10b, 10c, ... may be stuck/ joined with other member in atleast a manner selected from sticking members 10a, 10b, 10c, ... one after the other, sticking multiple members 10a, 10b, 10c, ... at one go or any combination thereof.
  • a build-up of the lay-up 10' in this manner may in turn be stuck to the production system, i.e., the member of the production system.
  • joined members 10a, 10b, 10c, ... or lay-up 10' may be stuck to a production device, e.g., the laminator, electrostatically or through holding unit 60.
  • the holding member 20 may include atleast one of clamps, suction heads, magnets or any combination thereof.
  • the sticking of the module members 10a, 10b, 10c, ... with the production device may not be possible with the individual member since the individual member may not possess the required stiffness. With multiple members 10a, 10b, 10c, ... sticking may be possible.
  • the sensitive solar cells may be protected by the second module member 10b, i.e., the EVA or other members, enabling other holding or handling unit 60.
  • FIGS. 5A to 5C which illustrate multiple transport systems 40, 42 adapted to handover the lay-up 10' among the different transport systems, according to an exemplary embodiment of the present invention. If multiple transport systems 40, 42 are used, then the lay-up 10' may be discharged (as shown by flash symbol in FIG. 5A) as not to stick to the transportation unit 40 anymore and the lay-up 10 may be charged again (as shown by rectangle in FIGS. 4B and 5C) on the next transportation unit 42.
  • FIG. 6 A which illustrates the first module member 10a electrostatically stuck with the holding member 20, according to an exemplary embodiment of the present invention.
  • the holding member 20 may be a machine or system member.
  • FIG. 6B which illustrates the holding member 20 as lay-up member 20', wherein the lay-up 10' is not attached to the system member, according to an exemplary embodiment of the present invention.
  • the first module member 10a which is electrostatically stuck to the system member, for example, the lay-up member 20', may in turn be electrostatically stuck with the system member, for example, a cover member 18 of a laminator (as shown in FIGS. 6D and 6E).
  • FIG. 6C illustrates a lay-up of the first module member 10a and the second module member 10b attached to the machine member, for example, the holding member 20, according to an exemplary embodiment of the present invention.
  • FIG. 6D illustrates the lay-up 10" of plurality of the module members electrostatically stuck to any part of the system, for example, a cover member 18 of the system, according to an exemplary embodiment of the present invention.
  • FIG. 6E illustrate the lay-up 10" stuck to a bottom side of the system member, according to an exemplary embodiment of the present invention.
  • the lay-up 10" may have a plurality of module members electrostatically joined together or may even comprise a glass plate 15 that may be stuck to a release sheet 42 and thus be transported into the laminator.
  • the holding member 18, 20 and seal members 13 are also illustrated in FIGS. 6D and 6E.
  • the operations discussed herein may be implemented through computing devices such as hardware, software, firmware, or combinations thereof, which may be provided as a computer program product, e.g., including a machine-readable or computer-readable medium having stored thereon instructions or software procedures used to program a computer to perform a process discussed herein.
  • the machine -readable medium may include a storage device.
  • the operation of components of the system 200 and method 100 may be controlled by such machine- readable medium.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne des procédés et un système pour former au moins un module solaire constitué d'une pluralité d'éléments de module. Le procédé consiste à positionner au moins un premier élément de module à une position prédéfinie sur un élément de support, charger électrostatiquement au moins l'un quelconque du premier élément de module et de l'élément de support pour les coller l'un à l'autre à la position prédéfinie, et relier au moins le premier élément de module à au moins un deuxième élément de module pour former au moins une partie du module solaire.
EP12714842.7A 2011-03-23 2012-03-01 Système et procédés pour traiter électrostatiquement au moins un élément d'au moins une superposition d'une pluralité d'éléments de module solaire Withdrawn EP2689468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN805DE2011 2011-03-23
PCT/IB2012/050965 WO2012127344A1 (fr) 2011-03-23 2012-03-01 Système et procédés pour traiter électrostatiquement au moins un élément d'au moins une superposition d'une pluralité d'éléments de module solaire

Publications (1)

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EP2689468A1 true EP2689468A1 (fr) 2014-01-29

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EP12714842.7A Withdrawn EP2689468A1 (fr) 2011-03-23 2012-03-01 Système et procédés pour traiter électrostatiquement au moins un élément d'au moins une superposition d'une pluralité d'éléments de module solaire

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EP (1) EP2689468A1 (fr)
CN (1) CN103503162A (fr)
WO (1) WO2012127344A1 (fr)

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Publication number Priority date Publication date Assignee Title
FI125116B (en) * 2013-07-23 2015-06-15 Cencorp Oyj A method and apparatus for assembling a photovoltaic module
WO2018225005A1 (fr) * 2017-06-09 2018-12-13 Meyer Burger (Switzerland) Ag Dispositif d'assemblage servant à assembler au moins une photopile et une feuille
EP3792984B1 (fr) 2019-09-13 2021-11-24 g-neration.energy AG Méthode de fabrication d'un module solaire

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US3892614A (en) * 1973-03-08 1975-07-01 Simco Co Inc Electrostatic laminating apparatus and method
FR2414070A2 (fr) * 1977-01-12 1979-08-03 Roland Emballages Procede pour l'assemblage de deux supports
DE10048974C2 (de) * 2000-09-27 2002-11-07 Wemhoener Heinrich Gmbh Co Vorrichtung und Verfahren zur Herstellung von plattenförmigen Verbundmaterial
CN100579332C (zh) * 2001-07-19 2010-01-06 东丽株式会社 电路基板、电路基板用构件及其制造方法和柔性薄膜的层压方法
US7479203B2 (en) * 2005-08-22 2009-01-20 Lexmark International, Inc. Lamination of dry film to micro-fluid ejection head substrates
JP5095166B2 (ja) * 2006-09-15 2012-12-12 日清紡ホールディングス株式会社 予熱による太陽電池モジュールのラミネート方法およびその装置
EP2422375A2 (fr) * 2009-04-24 2012-02-29 Peumans, Peter Réseaux photovoltaïques, cellules solaires à microconcentrateur et modules et procédés de fabrication
CA2765028A1 (fr) * 2009-06-08 2010-12-16 3S Swiss Solar Systems Ag Procede de fabrication d'un panneau solaire
JPWO2010143614A1 (ja) * 2009-06-10 2012-11-22 旭硝子株式会社 太陽電池モジュールの製造方法
WO2011158147A1 (fr) * 2010-06-17 2011-12-22 3S Swiss Solar Systems Ag Système et procédé de stratification d'un dispositif photovoltaïque

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WO2012127344A1 (fr) 2012-09-27
CN103503162A (zh) 2014-01-08

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