WO2017037231A1 - Panneau solaire et procédé de fabrication d'un tel panneau solaire - Google Patents

Panneau solaire et procédé de fabrication d'un tel panneau solaire Download PDF

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Publication number
WO2017037231A1
WO2017037231A1 PCT/EP2016/070715 EP2016070715W WO2017037231A1 WO 2017037231 A1 WO2017037231 A1 WO 2017037231A1 EP 2016070715 W EP2016070715 W EP 2016070715W WO 2017037231 A1 WO2017037231 A1 WO 2017037231A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate element
protrusions
solar panel
cells
photovoltaic cells
Prior art date
Application number
PCT/EP2016/070715
Other languages
English (en)
Inventor
Henrica Norberta Alberta Maria Steenbakkers-Menting
VAN Roland GIESEN
Original Assignee
Sabic Global Technologies B.V.
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 Sabic Global Technologies B.V. filed Critical Sabic Global Technologies B.V.
Publication of WO2017037231A1 publication Critical patent/WO2017037231A1/fr

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Classifications

    • 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
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H01L31/0516—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module specially adapted for interconnection of back-contact solar cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/20—Supporting structures directly fixed to an immovable object
    • H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
    • H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/40—Arrangement of stationary mountings or supports for solar heat collector modules using plate-like mounting elements, e.g. profiled or corrugated plates; Plate-like module frames 
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • 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 invention relates to a solar panel and to a method of manufacturing such a solar panel.
  • US 6,294,724 relates to a solar cell module comprising a solar cell element.
  • CN 104 091 846 relates to a solar cell module, comprising a base, at least one positive electrode connection line, at least one negative electrode connection line and at least one solar cell.
  • US 2014/209151 relates to a solar cell module including a plurality of solar cells including a photoelectric convenor and an electrode, a circuit wiring layer having a wiring for electrically connecting the plurality of solar cells, a barrier disposed on the circuit wiring layer, the barrier partitioning areas corresponding to the plurality of solar cells, and a sealing material for bonding and sealing the plurality of solar cells, the circuit wiring layer and the barrier.
  • JP H07 66441 A relates to a solar battery module.
  • EP 2 571 062 relates to a solar module comprising: a back sheet comprising : a substrate; and at least one rib formed on the substrate; at least one solar cell unit disposed on the back sheet next to the rib.
  • EP 2 881 996 relates to a solar cell module, comprising: a solar cell and sealing material provided on the rear surface side of the solar cell.
  • An object of the invention is to provide a solar panel which can be manufactured in a cost-efficient manner, and which is designed such that it can be assembled easily in particular regarding assembly of its photovoltaic cells.
  • the solar panel has a plurality of photovoltaic cells.
  • Each of the plurality of photovoltaic cells may be free from any, common, encapsulant layer on either of its back side and front side, upon placement of said cells on the plate element during manufacturing of the solar panel.
  • Photovoltaic cells for use in the present invention preferably comprise a layer of light-absorbing material such as a silicon wafer, an arrangement of metal fingers and at least one bus bar connected to the metal fingers, provided on a front side of the layer of light-absorbing material, and electrical contacts at the back side of the layer of light-absorbing material, of which at least one is operatively connected in an electrical manner to the at least one bus bar, such as by means of vias in the layer of light-absorbing material.
  • a layer of light-absorbing material such as a silicon wafer
  • an arrangement of metal fingers and at least one bus bar connected to the metal fingers provided on a front side of the layer of light-absorbing material, and electrical contacts at the back side of the layer of light-absorbing material, of which at least one is operatively connected in an electrical manner to the at least one bus bar, such as by means of vias in the layer of light-absorbing material.
  • the solar panel according to the invention also comprises a polymer plate element which is configured for use as a back side supporting structure for the plurality of photovoltaic cells.
  • the plate element at a front side thereof, has a plurality of protrusions.
  • the plurality of protrusions are configured for aligning each photovoltaic cell of the plurality of photovoltaic cells onto a predetermined respective position on the front side of the plate element such that movement of the photovoltaic cell in any direction parallel, preferably also perpendicular, to the plate element is blocked.
  • the solar panel also comprises a plurality of metal conductors disposed, preferably fixedly disposed, on the front side of the plate element, the plurality of metal conductors being in electrical contact with the plurality of photovoltaic cells, a polymer foil seal which spans the plurality of photovoltaic cells and which is sealingly connected to the plate element such that the plurality of photovoltaic cells is fully enclosed in a space between the plate element and the foil seal, and a polymer cover which is supported by the plate element.
  • the cover is arranged for at least substantially completely covering the foil seal and the plurality of photovoltaic cells disposed under the foil seal, at a distance from the foil seal, so as to define an interior space between the cover and the plate element.
  • the polymer foil seal which spans the plurality of photovoltaic cells, is sealingly connected to the plate element, such as by fixing it to protrusions of the plurality of protrusions, and/or to a remaining part of the plate element such as a plate part defining the front side of the plate element.
  • each photovoltaic cell of said plurality of photovoltaic cells may be free from any encapsulant layer on either of its back side and front side
  • the solar panel comprising such photovoltaic cells, may be free from an encapsulant layer between each photovoltaic cell and the polymer foil seal.
  • the foil seal and the cover are both light transparent. This means that they are light transparent to such an extent that in use of the solar panel electrical power is generated by the plurality of photovoltaic cells due to incident sunlight.
  • with light transparent is meant that the foil seal and cover allow at least an average of 50%, for example at least an average of 55%, for example at least an average of 60%, for example at least an average 65%, preferably at least an average of 70%, more preferably at least an average of 75%, most preferably at least an average of 80% transmission of light using a Perkin Elmer Lambda 950 according to ASTM D1003.
  • An advantage of the solar panel according to the invention is that by providing the mentioned plate element having protrusions, the metal conductors, the foil seal, and the cover, a very cost-efficient solar panel is provided. No encapsulant layers, which are expensive and require costly and time-consuming laminating processes, are required any longer for the photovoltaic cells. Individual cells can be positioned very easily and effectively by the provision of the protrusions. The front, sunlight receiving side of the photovoltaic cells can be easily and effectively closed off from environmental influences such as precipitation, moisture, dust and wind, using the foil seal because the foil seal is sealingly connected to the plate element, enclosing the plurality of photovoltaic cells in a space between the plate element and the foil seal.
  • Encapsulant layers are layers which encapsulate a photovoltaic cell, which fully embed the cell. Their function is to protect the photovoltaic cell.
  • An encapsulant, such as of EVA may have been provided in thin sheets placed on top of and underneath the solar cell. This sandwich has then been heated to 150 °C to melt/encapsulate and subsequently polymerize the EVA and bond the encapsulant, the cell, and optionally also a front and rear panel of a solar module together.
  • the solar panel according to the invention having the above mentioned components, can be manufactured very easily at relatively low cost.
  • the plurality of protrusions may also be configured for aligning each photovoltaic cell of the plurality of photovoltaic cells onto the front side of the plate element such that each photovoltaic cell extends over at least two of the metal conductors in such a manner that at least two electrical contacts of the photovoltaic cell are in conductive contact, preferably a pressure-based contact, with at least two conductors of the plurality of metal conductors.
  • Conductive paste may be used to increase conductivity at the contact points between the cells and the conductors.
  • the plurality of metal conductors is a plurality of metal conductor strips, wherein each photovoltaic cell of the plurality of photovoltaic cells is soldered or glued, i.e. has been connected by soldering or gluing, to two strips of the plurality of metal conductor strips, in a parallel configuration.
  • soldering or gluing i.e. has been connected by soldering or gluing
  • the plate element is formed by extrusion, that means has been formed by extrusion.
  • the plurality of protrusions is a plurality of ribs spaced apart in a width direction of the plate element and extending in length, or, extrusion, direction, so that the plate element and the plurality of ribs may be extruded as one integral part.
  • the ribs are positioned such that a single photovoltaic cell is enclosed between two neighbouring ribs in the width direction.
  • the ribs may be locally plastically deformed, i.e.
  • the protrusions may be configured to allow placement of the photovoltaic cells therebetween without having any obstruction to a placement in vertical direction, i.e. from above, at least prior to the placement.
  • the plate element may alternatively be, i.e. have been formed by moulding such as by injection moulding.
  • the plurality of protrusions may be a pattern of interconnected ribs extending in two mutually perpendicular directions, defining rectangular recesses between them, each for receiving one of the cells.
  • the foil seal is a monolayer foil, but may be a multilayer foil in an alternative embodiment.
  • the foil seal may in an embodiment be made of PP, PE, PTFE, PC, PVB, TPU, PMMA, PET, PP-MAH, PE-MAH, Silicon or lonomers, alone or in combination, or of a combination of any of these materials with EVA, as a multilayer foil.
  • the material of the foil seal, or in case of a multilayer foil of an inner layer thereof facing the photovoltaic cells, is chosen such that it does not form corrosive degradation products when in contact with water.
  • the foil seal functions to seal the space between the plate element and the foil seal from the outside air and thus from oxygen and moist.
  • the polymer foil seal is sealingly connected to the plate element such that the plurality of photovoltaic cells is fully enclosed under a decreased pressure, in an embodiment under vacuum.
  • the foil seal is, i.e. has been welded onto protrusions of the plurality of protrusions.
  • this is done by spot welding, preferably laser spot welding, but it may alternatively be done by hot tip-, hot roll-, ultrasonic-, mirror-, or continuous laser welding.
  • the foil seal has been glued onto protrusions of the plurality of protrusions.
  • the foil seal has been sealed, such as by gluing, onto protrusions of the plurality of protrusions in a non-permanent manner.
  • non- permanent is meant a manner of sealing enabling a subsequent removal of the foil seal without damaging, such as tearing, the foil seal.
  • the mentioned local plastic deformation of the protrusions and the mentioned welding of the foil seal onto the protrusions is carried out simultaneously, i.e. in one and the same method step.
  • t e plate element has upright wall parts along the periphery of the front side.
  • the foil seal may have been sealingly fixed, such as by welding, onto the wall parts, so as to close off the interior space formed between the front side of the plate element and the foil seal from its environment, in a very easy and efficient manner.
  • the plurality of metal conductors is formed by an electrically conductive metal layer fixed onto the plate element, and which layer is patterned such as to define the plurality of metal conductors.
  • the layer has been provided by spraying metal such as copper onto the plate element, or, onto an aluminium layer fixedly disposed onto the plate element.
  • the metal preferably comprises copper.
  • the plate element has, in its front side, a plurality of grooves.
  • the plurality of metal conductors may be a plurality of metal conductor strips each extending within one of the plurality of grooves.
  • the plate element is made of a material chosen from the group consisting of PP, PE, PC, PPO, ABS, ABS/PC, and the plate element is preferably flame retardant.
  • the use of PP is preferred.
  • the plate thickness is preferably in the range of 0,5 to 15 mm., more preferably in the range of 1 ,5 to 3 mm. in case that the plate element is made as one solid part. In case that the plate element is a foamed part, chemically or physically, the plate thickness is preferably in the range of 3 to 6 mm..
  • the plate element is made of a polyolefin, preferably polypropylene or polyethylene, wherein further preferably the polymer is a reinforced polymer, preferably a glass fibre reinforced polymer, preferably glass fibre reinforced polypropylene, preferably PP-LGF.
  • the reinforced polymer is a laminate, or comprises a foamed core.
  • a foamed core increases the heat isolation properties of the solar panel.
  • the solar panel may have coupling means for coupling the panel to a roof and/or to a further solar panel.
  • the cover is colored.
  • a commonly used color for roof tiles is chosen, the similarity of a roof formed by a plurality of elements according to the invention, and a common roof covered with roof tiles, is very high.
  • the cover comprises a plastic chosen from the group consisting of PMMA (Poly(methyl methacrylate)), a polycarbonate, PET (Polyethylene terephthalate), polypropylene, and polyethylene, whereby the plastic is preferably UV resistant.
  • the cover is made of glass.
  • the cover is a multilayer element having layers of plastics chosen from the mentioned group, whereby the lop layer facing away from the plate element in assembled condition, is preferably UV resistant.
  • the cover is connected to the plate element in a releasable manner.
  • the releasable connection may comprise a snap or snap/lock connection and/or a screw connection.
  • the photovoltaic element can be removed from or placed in the interior space between the plate element and the cover.
  • the cover has, on its outer, upper, side, the shape and color of a pattern of roof tiles, such as Spanish roof tiles, flat roof tiles, or shingles.
  • the cover is designed such as to simulate a plurality of adjacent roof tiles, in two directions of the roof.
  • the invention also relates to a method of manufacturing a solar panel according to the invention as described above.
  • the method comprises the steps of a) providing the plurality of photovoltaic cells and the plate element, b) placing each photovoltaic cell of the plurality of photovoltaic cells at a predetermined position for that cell onto the front side of the plate element, which predetermined location is defined by protrusions of said plurality of protrusions, wherein the cell is in electrical contact with at least two of the plurality of metal conductors,
  • the method according to the invention provides a very easy, robust and cost efficient manner to produce solar panels.
  • the plurality of protrusions may have snap-lock means so that the plurality of photovoltaic cells may be placed onto the plate element wherein the snap-lock means contribute to the blocking of movement of the cell in a direction in particular perpendicular to the plate element.
  • the plurality of protrusions may be configured such that photovoltaic cells may be slid between protrusions in a first direction parallel to the plate element wherein the protrusions block movement in a second direction parallel to the plate element which is perpendicular to said first direction, and block movement in a direction perpendicular to the plate element. After that cells are slid in place, movement of said cells in said first direction may be blocked such as by locally plastically deforming the protrusions.
  • the mentioned local plastic deformation of the protrusions and the mentioned welding of the foil seal onto the protrusions is carried out simultaneously, i.e. in one and the same method step.
  • step a) of the method may comprise providing the plate element including the plurality of metal conductors, and wherein the placing of the photovoltaic cells comprises establishing electrical, pressure based contact between each of the cells and at least two of the conductors, optionally also with the use of conductive paste.
  • Fig. 1 shows a plate element of a first preferred embodiment of a solar panel according to the invention, in plan view
  • Fig. 2 shows the plate element of figure 1 , onto which a number of photovoltaic cells are disposed, in plan view
  • Fig. 3 shows a plate element of a second preferred embodiment of a solar panel according to the invention, in plan view,
  • Fig. 4 shows the plate element of figure 3, onto which a number of photovoltaic cells are disposed, in plan view,
  • Fig. 5 shows a detail of figure 4, in cross section along line v-v of figure 4,
  • Fig. 6 shows the detail of figure 5, during a method step of deformation
  • Fig. 7 shows a detail of a plate element and a photovoltaic cell being part of a further preferred embodiment of a solar panel according to the invention
  • Fig. 8 shows the detail of figure 7, during a method step of deformation and of spot welding a foil seal
  • Fig. 9 shows the solar panel according to the second preferred embodiment of which the plate element is shown in figure 3, in 3-dimensional view,
  • Fig. 1 0 shows the solar panel of figure 9 in front view
  • Fig. 1 1 shows a plate element of a third preferred embodiment of a solar panel according to the present invention .
  • Solar panels according to the invention such as the solar panel 1 according to figure 9 and such as the solar panel 1 ' according to figure 1 0, comprise a plate element, a plurality of metal conductors, a plurality of photovoltaic cells (further: PV cells), a foil seal spanning the PV cells, and a cover.
  • a plate element a plurality of metal conductors, a plurality of photovoltaic cells (further: PV cells), a foil seal spanning the PV cells, and a cover.
  • PV cells photovoltaic cells
  • the plate element 1 0 as shown in figure 1 is of polymer, more specifically of PP, and is injection moulded. The thickness is 1 0 mm.
  • the plate element 1 0 has a flat front side 1 1 and two upstanding side walls 1 2, formed as ribs. The side walls extend in a length direction 13 of the plate element 1 0.
  • Four pairs of spaced apart grooves 14 are provided in the front side 1 1 of the plate element.
  • a metal conductor strip 1 6 is disposed in each of the eight grooves 1 4.
  • a top side of the metal conductor strips 1 6 is approximately flush with the surface of the front side 1 1 , or may even protrude very slightly above said surface.
  • a combination of a groove 14 with a strip 1 6 is indicated with the double reference sign 14, 1 6.
  • protrusions 1 8 are provided on the front side of the plate element.
  • the protrusions are cross-shaped in plan view as shown in figure 1 , and are spaced apart.
  • further protrusions 20 are provided between the outer ones, seen in a width direction transverse to the longitudinal direction, of the grooves and the side walls.
  • the protrusions 18, 20 are positioned so as to form a grid.
  • One of the PV cell positioning areas is indicated with reference sign 24, and the dashed lines, in figure 1 .
  • a pair of conductors strips 1 6 extends through each of the PV cell positioning areas 24.
  • FIG. 2 shows the plate element 1 0 having the metal conductor strips 16 in combination with, at least in the present example only for the purpose of explaining the invention, thirteen PV cells 26.
  • Each PV cell 26 is positioned by four protrusions 18, 20 at the respective four corners thereof. That means, any movement of the PV cells 26 in any direction parallel to the front side 1 1 of the plate element 10, i.e. in the plane of the paper in the plan view of figure 2, is blocked by the protrusions.
  • a plurality of PV cells 16 is disposed on the front side 1 1 of the plate element 1 10.
  • the plate element may be covered with PV cells to a larger extent.
  • the PV cells 16 are blocked for movement in the width direction by the ribs 1 18, 12.
  • the ribs are locally plastically deformed, at the locations indicated with reference signs 32. More specifically the ribs are locally heated and compressed. As a result, the material of the ribs is spread out in between two adjacent PV cells and, at the corners of the PV cells, over the PV cells.
  • plate element 10 of which the cross- shaped protrusions 18 may be locally plastically deformed, such as locally heated and compressed. As a result, the material of the protrusions 18 is spread out in between two adjacent PV cells and, at the corners of the PV cells, over the PV cells.
  • the ribs 1 18, 12 after being plastically deformed locally, also provide for blocking of movement of the PV cells 16 in the longitudinal direction and even in the vertical direction, i.e. perpendicular to the front side of the plate element 1 1 0.
  • the back side of the PV cells 26 is pressed onto the conductor strips 1 6 as a result of this plastic deformation .
  • the two conductor strips 1 6 are located relative to the two ribs 1 1 8 on the both sides thereof in width direction, and the same holds for ribs 1 8, 21 8, that they pass along two contacts of the PV cell, at least after placement of the PV cell between the two ribs.
  • the PV cells can be electrically connected via the conductor strips 1 6 via electrical contacts 26a, 26b (see figure 6 and 7) of the PV cells.
  • conductive paste may be used between the contacts of the PV cells and the conductor strips 1 6.
  • Figure 5 shows a detail in cross section, along the line v-v of figure 4.
  • the detail shows part of the ribs 1 1 8 between plastically deformed areas.
  • Figure 6 shows another detail in cross section, along the line vi-vi of figure 4. This detail is at the location of a plastic deformation of ribs 1 1 8.
  • Figure 6 shows a hot tip 34 being pressed against the ribs 1 1 8 such that the material is plastically deformed, more specifically melted, and overlaps corners of the PV cells 26 and enters between two adjacent PV cells 26 in longitudinal direction (not shown in figure 6) .
  • the ribs 1 1 8 may locally be compressed in the absence of a heat source so as to plastically deform the ribs.
  • Figure 7 shows a slightly different embodiment of a plate element according to the invention, compared to figure 6.
  • the plate element 21 0 of figure 7 has ribs 21 8, similar to ribs 1 1 8 of plate element 1 0, which have a flanged free end.
  • the flange extends to one direction in width direction of the plate element.
  • the PV cells may be placed between two adjacent ribs 21 8 by first placing the left side of a cell 26, at least in the view of figure 7, underneath the flange 21 9 and then lowering the right side until the cell 26 comes to rest on the front side 1 1 of the plate element 21 0.
  • the ribs 21 8 may have a flange 21 9 on both sides, i.e. also on the left side of the ribs 21 8 in the view of figure 6.
  • the ribs provide for blocking of movement in the direction perpendicular to the plate element.
  • the PV cells may be slid into place in a direction parallel to the ribs, i.e. perpendicular to the paper in the view of figure 6.
  • Figure 8 shows the ribs 21 8 in a situation compared to ribs 1 1 8 in figure 6, that means, after local plastic deformation. Also shown in figure 8 is the fixation of a transparent polymer foil seal 40 which spans the cells 26 over the entire surface of the front side of the plate element 1 0, defining a space 41 between the plate element 1 1 0 and the foil seal 40. Using spot welding tips 42 the foil seal 40 is welded onto the free end of the ribs 218. A foil seal 40 can also be fixated onto the plate element 10 in a similar manner.
  • Figure 9 and figure 10 show a solar panel 1 and 1 ' respectively, having a plate element 1 1 0" and 1 10', respectively.
  • the plate elements 1 10" and 1 10' are the same as plate element 1 10 as described above and shown in figure 3, except for the number of parallel ribs 1 18.
  • a plurality of PV cells 26 are disposed on the plate element (only a few shown in figure 9) and are blocked for movement with respect to the plate element by the local plastic deformation of the ribs 1 18 as described.
  • a foil seal 40 shown in part, spans over the PV cells and is sealingly fixed to the plate element by welding it to the plate element along the perimeter of the plate element. It is also fixed to the plate element by fixing it to the ribs locally, using spot laser welding or continuous laser welding.
  • the solar panel 1 , 1 ' also has a cover 3, in the present example consisting of one cover part but alternatively it may comprise a plurality, such as two, individual cover parts that mutually overlap, like roof tiles.
  • the cover is shaped so as to resemble a plurality of roof tiles and it defines an interior space 4 between the cover 3 and the plate element 1 10", 1 10'.
  • the foil seal 40 and the cover 3 are both light transparent to such an extent that in use of the solar panel 1 electrical power is generated by the plurality of PV cells 26 due to incident sunlight through the cover 3 and foil seal 40.
  • Such a cover 3 may also be placed on the plate element 10 or 1 10.
  • cuts may be provided in any other configuration, dependent on the number of cells that need to be connected in parallel or in series configuration.
  • cutouts may be provided for the protrusions 18, 20. As an example, three of such cutouts are shown in figure 1 1 and are indicated by reference sign 53.
  • the cross-shaped protrusions 18 may be locally plastically deformed so that the material of the protrusions 18 is spread out in between two adjacent PV cells and, at the corners of the PV cells, over the PV cells, for blocking movement of the PV cells in the vertical direction, i.e. perpendicular to the plate element 310.
  • a foil seal and a cover may be applied in a similar manner as is described above related to plate elements 10, 1 10.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
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  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention porte sur un panneau solaire comprenant une pluralité de cellules photovoltaïques, un élément de plaque en polymère pour le support des cellules, comportant des excroissances pour l'alignement des cellules sur l'élément en plaque. Le panneau comporte des conducteurs en métal disposés fixement sur l'élément de plaque, qui sont en contact électrique avec les cellules, un joint en feuille polymère s'étendant sur les cellules photovoltaïques et étant connecté de manière étanche à l'élément de plaque de sorte que les cellules photovoltaïques soient complètement confinées dans un espace entre l'élément de plaque et le joint en feuille, et un couvercle polymère supporté par l'élément de plaque, servant à recouvrir le joint en feuille et les cellules photovoltaïques disposées sous le joint en feuille à une certaine distance du joint en feuille. Le joint en feuille et le couvercle sont tous deux transparents à la lumière de telle manière que lors de l'utilisation, la puissance électrique du panneau solaire soit générée par les cellules photovoltaïques grâce à la lumière incidente du soleil.
PCT/EP2016/070715 2015-09-02 2016-09-02 Panneau solaire et procédé de fabrication d'un tel panneau solaire WO2017037231A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15183471 2015-09-02
EP15183471.0 2015-09-02

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Publication Number Publication Date
WO2017037231A1 true WO2017037231A1 (fr) 2017-03-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3923465A1 (fr) 2020-06-04 2021-12-15 Jakob Wendt Ursing Bipv camouflé

Citations (6)

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GB2024511A (en) * 1978-06-30 1980-01-09 Exxon Research Engineering Co Solar cell modulesj
JPH0766441A (ja) * 1993-08-25 1995-03-10 Asahi Glass Co Ltd 太陽電池モジュール
EP2571062A2 (fr) * 2011-09-19 2013-03-20 AU Optronics Corporation Module solaire
US20140209151A1 (en) * 2013-01-30 2014-07-31 Lg Electronics Inc. Solar cell module
CN104091846A (zh) * 2014-05-05 2014-10-08 友达光电股份有限公司 太阳能电池模块
EP2881996A1 (fr) * 2012-07-31 2015-06-10 Sanyo Electric Co., Ltd Module de cellules solaires

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Publication number Priority date Publication date Assignee Title
GB2024511A (en) * 1978-06-30 1980-01-09 Exxon Research Engineering Co Solar cell modulesj
JPH0766441A (ja) * 1993-08-25 1995-03-10 Asahi Glass Co Ltd 太陽電池モジュール
EP2571062A2 (fr) * 2011-09-19 2013-03-20 AU Optronics Corporation Module solaire
EP2881996A1 (fr) * 2012-07-31 2015-06-10 Sanyo Electric Co., Ltd Module de cellules solaires
US20140209151A1 (en) * 2013-01-30 2014-07-31 Lg Electronics Inc. Solar cell module
CN104091846A (zh) * 2014-05-05 2014-10-08 友达光电股份有限公司 太阳能电池模块

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3923465A1 (fr) 2020-06-04 2021-12-15 Jakob Wendt Ursing Bipv camouflé

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