EP2313932A2 - Photovoltaic element - Google Patents

Photovoltaic element

Info

Publication number
EP2313932A2
EP2313932A2 EP09780755A EP09780755A EP2313932A2 EP 2313932 A2 EP2313932 A2 EP 2313932A2 EP 09780755 A EP09780755 A EP 09780755A EP 09780755 A EP09780755 A EP 09780755A EP 2313932 A2 EP2313932 A2 EP 2313932A2
Authority
EP
European Patent Office
Prior art keywords
photovoltaic element
photovoltaic
electrical connection
sealing
geomembrane
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Withdrawn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
EP09780755A
Other languages
German (de)
French (fr)
Inventor
Hans-Jakob Strehler
Werner Hillebrand Hansen
Randall Jurisch
Klaus Schür
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.)
Sika Technology AG
Solar Integrated Technologies GmbH
Original Assignee
Sika Technology AG
Solar Integrated Technologies GmbH
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 Sika Technology AG, Solar Integrated Technologies GmbH filed Critical Sika Technology AG
Priority to EP09780755A priority Critical patent/EP2313932A2/en
Publication of EP2313932A2 publication Critical patent/EP2313932A2/en
Withdrawn legal-status Critical Current

Links

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
    • H01L31/02—Details
    • H01L31/02002—Arrangements for conducting electric current to or from the device in operations
    • H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
    • H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
    • 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
    • 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
    • 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
    • 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
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/20—Collapsible or foldable PV 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
    • 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 photovoltaic element according to the preamble of the first claim.
  • Similar photovoltaic elements are well known and are mostly used for application to a flat roof. Here are usually several photovoltaic elements welded together with their geomembranes side by side, so that the sum of the welded photovoltaic elements in addition to the power generation function also simultaneously fulfills the function of a roof seal.
  • the single-layer systems are additionally differentiated according to the type of cabling:
  • the single-layer system in which the connection of the photovoltaic modules to the wiring from below, whereby the sealing sheet is pierced.
  • the wiring itself is inserted into the thermal insulation layer of the roof.
  • the advantage is a low risk of damage to the contact points when walking the roof and it is not necessary to protect the contact points with mechanical covers.
  • only one geomembrane layer is necessary.
  • the disadvantage is the frequent penetration of the sealing level in the flat roof area.
  • the core of the invention is therefore that the contact points of the photovoltaic module arranged on the side facing the geomembrane are and the means for electrical connection pierced the geomembrane.
  • An advantageous embodiment of the photovoltaic element provides that the means for electrical connection to the contact points puncture the sealing web twice.
  • an advantageous embodiment of the photovoltaic element provides that the means for the electrical connection of the contact points between the sealing web
  • Punctured contact points twice preferably also the means for electrical connection to the contact point on the photovoltaic module
  • an additional cover sheet along the fürstossembl applied in particular welded and / or glued, in the area of the fürstossembl of the geomembrane on the underside of the geomembrane, which is preferably made of plastic, in particular of the same material as the geomembrane itself, should exist.
  • the additional cover sheet should run in its longitudinal direction along the fürstossus.
  • a particularly secure variant with respect to the sealing security is achieved, however, if a shaped piece is arranged in the region of the cover web, which creates an air-permeable connection to a cavity formed by cover web and sealing web. As a result, the tightness of the system can be detected by means of a vacuum test.
  • the fitting is connected to the geomembrane or even better on the underside of the geomembrane, in particular welded and / or glued. If such a shaped piece is used, this can additionally be used particularly advantageously for at least one electrical connection or all electrical connections to pass through this fitting to the outside. As a result, possible additional leakage points are avoided.
  • a further advantageous embodiment provides that the means for electrical connection have plug connections, so that a simple wiring is possible.
  • Range of contact points 3 shows an oblique view of a partially rolled-out photovoltaic element; 4: unrolled photovoltaic element with four photovoltaic modules; 5 shows a cross section through a photovoltaic element in the region of
  • FIG. 6 shows a cross section through a photovoltaic element with cover sheet in the region of the contact points
  • FIG. 7 shows a cross section through a photovoltaic element with connection grommet for the
  • FIG. 1 illustrates a photovoltaic element 1 according to the invention with a photovoltaic module 2.1 mounted on one side of the geomembrane.
  • the contact points 4.1 and 4.2 of the photovoltaic module 2.1 are arranged on the side facing the waterproofing membrane 8 and the means for electrical connection 6.1 or 6.2 pierces the sealing membrane 8.
  • the contact points 4.1, 4.2 each lead out the positive or negative polarity of the respective photovoltaic module.
  • the means attached to the respective contact points 4.1, 4.2 means for electrical connection 6.1, or 6.2, can be used to connect the photovoltaic element 1 with other photovoltaic elements in series or in parallel.
  • the geomembrane attached to the contact points 4.1, 4.2 means for electrical connection 6.1, or 6.2, the geomembrane also pierced together at the same place.
  • the photovoltaic modules may be connected to each other in series or in parallel, with the advantage of a higher voltage in the case of a serial connection, resulting in a higher current in the parallel connection.
  • FIG. 2 the photovoltaic element 1 from FIG. 1 is depicted, wherein it can be seen that a cover sheet 5 is applied, in particular adhesively bonded and / or welded, to the underside of the sealing sheet 8, thereby ensuring in a secure manner the permanent sealing of Roofs with the help of photovoltaic elements 1 offers.
  • FIG. 3 shows a photovoltaic element 1 according to the invention in a partly rolled-up state, consisting of a sealing sheet 8, on which four photovoltaic modules 2.1 to 2.4 are fixed and which has a common plug connection 3 for an external power connection.
  • FIG. 4 shows such a photovoltaic element from FIG. 3 in an unrolled state, with the illustration of the invention in the left Area at the individual photovoltaic modules 2.1 to 2.4 contact points 4.1, 4.2 can be seen, each leading out the positive or negative polarity of the respective photovoltaic module and where means for electrical connection to the contact points 6.1, or 6.2, are attached.
  • These contact points 4.1, 4.2 are mounted on the underside of the photovoltaic modules 2.1 to 2.4 so that they point in the direction of the underlying geomembrane 8. At these contact points 4.1 and
  • Terminals in the serial connection row of the photovoltaic modules 2.1 to 2.4 are each a means for electrical connection 6.1 or 6.2 connected to the contact point, which pierces the sealing sheet 8 immediately behind the contact point and on the side on which the entire electrical connection of the photovoltaic element 1 is, where they once again pierced the waterproofing membrane 8 from below.
  • Terminals in the serial connection row of the photovoltaic modules 2.1 to 2.4 are each a means for electrical connection 6.1 or 6.2 connected to the contact point, which pierces the sealing sheet 8 immediately behind the contact point and on the side on which the entire electrical connection of the photovoltaic element 1 is, where they once again pierced the waterproofing membrane 8 from below.
  • cover sheet 5 is located on the underside of the waterproofing membrane again a cover sheet 5, which encloses this entire area and waterproof covers.
  • the cover sheet 5 is connected to the sealing sheet 8, in particular adhesively bonded and / or welded, so that there is a secure sealing situation.
  • FIG. 6 shows the photovoltaic element 1 from FIG. 5, wherein it can be seen that the cover web 5 is located on the lower side of FIG
  • Sealing web 8 applied, in particular glued and / or welded, and thereby provides a secure way of guaranteeing a permanent sealing of roofs using the photovoltaic elements 1.
  • a further improvement of the invention can be achieved in that - as shown in Figure 7 - additionally a connector grommet 9 attached to the geomembrane 8 in the region of the formed by the geomembrane 8 and the underlying, in particular glued and / or welded, cover sheet 5 cavity formed is.
  • this connector grommet which may be formed, for example, flexible and rigid and can be welded as a fitting to the sealing sheet 8, by vacuuming air 10, a vacuum in the space 11, between the geomembrane 8 and the cover sheet 5, are generated.
  • the tightness can be checked in accordance with an optionally measurable pressure drop, so that the tightness of the entire system of the photovoltaic element 1 is ensured with high reliability.
  • connection sleeve can also be used to lead the means for electrical connection 6.1, or 6.2, to the outside, as shown in Figure 8. This measure avoids possible leaks due to further breakthroughs.
  • an air connection must then be used, which allows the plug 3 to be included at short notice, or the connections to the plug have to be made later, so that only the means for electrical connection 6.1 and 6.2 are to be accommodated in the air connection.

Landscapes

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

Abstract

The invention relates to a photovoltaic element (1) having a sealing web (8) with at least one photovoltaic module (2.1-2.4) which is mounted on one side of the sealing web and has contact points (4.1, 4.2) and means for electrical connection (6.1, 6.2). The invention is distinguished in that the contact points (4.1, 4.2) of the photovoltaic module (2.1-2.4) are arranged on the side facing the sealing web (8), and the means for electrical connection (6.1, 6.2) pass through the sealing web (8).

Description

PHOTOVOLTAIKELEMENT PHOTOVOLTAIC ELEMENT
Technisches GebietTechnical area
Die Erfindung geht aus von einem Photovoltaikelement nach dem Oberbegriff des ersten Anspruches.The invention relates to a photovoltaic element according to the preamble of the first claim.
Stand der TechnikState of the art
Ähnliche Photovoltaikelemente sind allgemein bekannt und werden meist zur Aufbringung auf ein Flachdach verwendet. Hierbei werden meist mehrere Photovoltaikelemente mit ihren Dichtungsbahnen nebeneinander verschweisst, so dass die Summe der verschweissten Photovoltaikelemente neben der Stromerzeugungsfunktion auch gleichzeitig die Funktion einer Dachabdichtung erfüllt.Similar photovoltaic elements are well known and are mostly used for application to a flat roof. Here are usually several photovoltaic elements welded together with their geomembranes side by side, so that the sum of the welded photovoltaic elements in addition to the power generation function also simultaneously fulfills the function of a roof seal.
Grundsätzlich unterscheidet man einlagige und zweilagige Photovoltaik-Systeme. Bei einem zweilagigen System übernimmt die obere Lage die Photovoltaikfunktion, während die untere Lage die Abdichtfunktion übernimmt. Die Lagen werden getrennt aufgebracht, wobei die untere Lage für die elektrischen Anschlüsse nicht durchstossen wird. Die Verkabelung erfolgt meist nach dem Abschluss der Abdichtungsarbeiten, so dass keine Beschädigungsgefahr der Kontaktstellen beim Begehen des Daches besteht oder ein aufwändiges Schützen der Kontaktstellen durch mechanische Abdeckungen entfällt. Die Abdichtsituation ist sehr sicher, allerdings ist diese Variante relativ kostenaufwändig, da zwei Kunststoffdichtungsbahnen verwendet und aufgebracht werden müssen.Basically, a distinction is made between single-layer and two-layer photovoltaic systems. In a two-layer system, the upper layer takes over the photovoltaic function, while the lower layer assumes the sealing function. The layers are applied separately, the lower layer for the electrical connections is not pierced. The wiring is usually after completion of the sealing work, so that there is no risk of damage to the contact points when walking the roof or a costly protection of the contact points by mechanical covers deleted. The sealing situation is very safe, but this variant is relatively expensive, since two plastic waterproofing membranes must be used and applied.
Die einlagigen Systeme werden zusätzlich nach der Art der Verkabelung unterschieden:The single-layer systems are additionally differentiated according to the type of cabling:
Einerseits das einlagige System, bei dem der Anschluss der Photovoltaikmodule an die Verkabelung von unten erfolgt, wobei die Abdichtungsbahn durchstossen wird. Die Verkabelung selbst wird dabei in die Wärmedämmschicht des Daches eingelegt. Hierbei wird das gesamte Dachschichtenpaket, also Isolierung + Dampfsperre + Tragkonstruktion, pro vier Photovoltaikmodule einmal und die Abdichtungsebene alle 2 - 3 m2 einmal durchstossen. Der Vorteil ist eine geringe Beschädigungsgefahr der Kontaktstellen beim Begehen des Daches und es ist kein Schützen der Kontaktstellen mit mechanischen Abdeckungen notwendig. Weiterhin ist nur eine Dichtungsbahnlage notwendig. Nachteilig ist das häufige Durchstossen der Dichtungsebene im Flachdachbereich. Durchstosslösungen sind in der Applikation besonders risikoreich bezüglich Undichtigkeiten und teuer, da sie besondere Anforderungen an die technische Lösung und das handwerkliche Geschick der Verarbeiter stellen. Verkabelungs- und Abdichtungsarbeiten müssen miteinander durchgeführt werden. Dies dauert länger und es sind mehr Personen auf dem Dach, was zu höheren Unsicherheiten bei der Verarbeitung führt. Das Risiko von Undichtigkeiten steigt damit zusätzlich.On the one hand, the single-layer system, in which the connection of the photovoltaic modules to the wiring from below, whereby the sealing sheet is pierced. The wiring itself is inserted into the thermal insulation layer of the roof. Here, the entire roof layer package, ie insulation + vapor barrier + support structure, once per four photovoltaic modules and the sealing level every 2 - 3 m 2 once pierce. The advantage is a low risk of damage to the contact points when walking the roof and it is not necessary to protect the contact points with mechanical covers. Furthermore, only one geomembrane layer is necessary. The disadvantage is the frequent penetration of the sealing level in the flat roof area. Penetration solutions are particularly risky in terms of leaks and expensive in the application, as they make special demands on the technical solution and the craftsmanship of the processors. Cabling and sealing work must be carried out together. This takes longer and there are more people on the roof, which leads to higher uncertainties in processing. The risk of leaks increases thus additionally.
Andererseits gibt es auch ein einlagiges System bei dem der Anschluss der Photovoltaikelemente an die Verkabelung oben auf dem Photovoltaikmodul, also der Oberseite, erfolgt und die Verkabelung auf dem Flachdach ebenfalls auf der Oberseite geschieht. Der Vorteil liegt darin, dass ein Durchstossen der Dichtungsebene vermieden wird, die Verkabelung nach Abschluss der Abdichtungsarbeiten möglich ist und nur eine Dichtungsbahnlage notwendig ist. Nachteilig ist die hohe Beschädigungsgefahr der Kontaktstellen beim Begehen des Daches oder aufwändiges Schützen der Kontaktstellen mit mechanischen Abdeckungen.On the other hand, there is also a single-layer system in which the connection of the photovoltaic elements to the wiring on top of the photovoltaic module, ie the top, takes place and the wiring on the flat roof also happens on the top. The advantage is that a puncture of the sealing level is avoided, the wiring is possible after completion of the sealing work and only one geomembrane layer is necessary. A disadvantage is the high risk of damage to the contact points when walking the roof or complex protection of the contact points with mechanical covers.
Darstellung der ErfindungPresentation of the invention
Es ist daher Aufgabe der Erfindung, ein neues Photovoltaikelement zu finden, welches die Vorteile der einlagigen Systeme und zweilagigen Systeme weitestgehend erfüllt und deren Nachteile jedoch möglichst meidet.It is therefore an object of the invention to find a new photovoltaic element, which largely complies with the advantages of the single-layer systems and two-layer systems and avoids their disadvantages as far as possible.
Diese Aufgabe wird durch die Merkmale des unabhängigen Patentanspruches 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand untergeordneter Ansprüche.This object is solved by the features of independent claim 1. Advantageous developments of the invention are the subject of the subordinate claims.
Kern der Erfindung ist es also, dass die Kontaktstellen des Photovoltaikmoduls auf der zur Dichtungsbahn gewandten Seite angeordnet sind und die Mittel zum elektrischen Anschluss die Dichtungsbahn durchstossen.The core of the invention is therefore that the contact points of the photovoltaic module arranged on the side facing the geomembrane are and the means for electrical connection pierced the geomembrane.
Eine vorteilhafte Ausbildung des Photovoltaikelementes sieht vor, dass die Mittel zum elektrischen Anschluss an die Kontaktstellen die Dichtungsbahn zweimal durchstossen. Im Fall von mehreren Fotovoltaikmodulen sieht eine vorteilhafte Ausbildung des Photovoltaikelementes vor, dass die Mittel zur elektrischen Verbindung der Kontaktstellen die Dichtungsbahn zwischen zweiAn advantageous embodiment of the photovoltaic element provides that the means for electrical connection to the contact points puncture the sealing web twice. In the case of several photovoltaic modules, an advantageous embodiment of the photovoltaic element provides that the means for the electrical connection of the contact points between the sealing web
Kontaktstellen zweimal durchstossen, vorzugsweise auch die Mittel zum elektrischen Anschluss nach der Kontaktstelle am Photovoltaikmodul diePunctured contact points twice, preferably also the means for electrical connection to the contact point on the photovoltaic module
Dichtungsbahn zweimal durchstossen.Penetrated sealing membrane twice.
Für eine sehr sichere Abdichtung kann gesorgt werden, indem im Bereich der Durchstosspunkte der Dichtungsbahn auf der Unterseite der Dichtungsbahn eine zusätzliche Abdeckungsbahn entlang der Durchstosspunkte aufgebracht, insbesondere aufgeschweisst und/oder aufgeklebt, wird, wobei diese vorzugsweise aus Kunststoff, insbesondere aus dem gleichen Material wie die Dichtungsbahn selbst, bestehen sollte. Die zusätzliche Abdeckungsbahn sollte dabei in ihrer Längsrichtung entlang der Durchstosspunkte verlaufen.For a very secure sealing can be ensured by an additional cover sheet along the Durchstosspunkte applied, in particular welded and / or glued, in the area of the Durchstosspunkte of the geomembrane on the underside of the geomembrane, which is preferably made of plastic, in particular of the same material as the geomembrane itself, should exist. The additional cover sheet should run in its longitudinal direction along the Durchstosspunkte.
Eine besonders sichere Variante bezüglich der Abdichtungssicherheit wird allerdings erreicht, wenn im Bereich der Abdeckungsbahn ein Formstück angeordnet ist, welches einen luftdurchgängigen Anschluss an einen durch Abdeckungsbahn und Dichtungsbahn gebildeten Hohlraum schafft. Hierdurch kann mit Hilfe eines Vakuumtests die Dichtheit des Systems nachgewiesen werden.A particularly secure variant with respect to the sealing security is achieved, however, if a shaped piece is arranged in the region of the cover web, which creates an air-permeable connection to a cavity formed by cover web and sealing web. As a result, the tightness of the system can be detected by means of a vacuum test.
Günstig ist es dabei, wenn das Formstück mit der Dichtungsbahn oder noch besser auf der Unterseite der Dichtungsbahn verbunden, insbesondere verschweisst und/oder verklebt, ist. Wird ein solches Formstück verwendet, so kann dieses zusätzlich besonders vorteilhaft dazu verwendet werden auch mindestens einen elektrischer Anschluss oder alle elektrischen Anschlüsse durch dieses Formstück nach aussen zu führen. Hierdurch werden mögliche zusätzliche Leckagestellen vermieden.It is advantageous if the fitting is connected to the geomembrane or even better on the underside of the geomembrane, in particular welded and / or glued. If such a shaped piece is used, this can additionally be used particularly advantageously for at least one electrical connection or all electrical connections to pass through this fitting to the outside. As a result, possible additional leakage points are avoided.
Eine weitere vorteilhafte Ausbildung sieht vor, dass die Mittel zum elektrischen Anschluss Steckverbindungen aufweisen, damit ein einfaches Verkabeln möglich ist.A further advantageous embodiment provides that the means for electrical connection have plug connections, so that a simple wiring is possible.
Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention will become apparent from the dependent claims.
Kurze Beschreibung der ZeichnungShort description of the drawing
Im Folgenden wird die Erfindung anhand der Figuren näher beschrieben, wobei nur die zum Verständnis der Erfindung notwendigen Merkmale dargestellt sind. Es zeigen im Einzelnen:In the following the invention will be described in more detail with reference to the figures, wherein only the features necessary for understanding the invention are shown. They show in detail:
FIG 1 : Querschnitt durch ein Photovoltaikelement im Bereich der1: cross section through a photovoltaic element in the region of
Kontaktstellen; FIG 2: Querschnitt durch ein Photovoltaikelement mit Abdeckungsbahn imContact points; 2 shows a cross section through a photovoltaic element with cover track in FIG
Bereich der Kontaktstellen; FIG 3: Schrägansicht eines teilweise ausgerollten Photovoltaikelementes; FIG 4: Entrolltes Photovoltaikelement mit vier Photovoltaikmodulen; FIG 5: Querschnitt durch ein Photovoltaikelement im Bereich derRange of contact points; 3 shows an oblique view of a partially rolled-out photovoltaic element; 4: unrolled photovoltaic element with four photovoltaic modules; 5 shows a cross section through a photovoltaic element in the region of
Kontaktstellen;Contact points;
FIG 6: Querschnitt durch ein Photovoltaikelement mit Abdeckungsbahn im Bereich der Kontaktstellen;6 shows a cross section through a photovoltaic element with cover sheet in the region of the contact points;
FIG 7: Querschnitt durch ein Photovoltaikelement mit Anschlusstülle für den7 shows a cross section through a photovoltaic element with connection grommet for the
Innenbereich zwischen Dichtungsbahn und Abdeckungsbahn; FIG 8: Querschnitt durch ein Photovoltaikelement mit Anschlusstülle ähnlich Figur 7, jedoch mit Führung der Mittel zum elektrischen Anschluss durch Anschlusstülle für Dichtigkeitsprüfung. Wege zur Ausführung der ErfindungInterior between geomembrane and cover track; 8 shows a cross section through a photovoltaic element with a connection spout similar to FIG. 7, but with a guide for the means for electrical connection through connection grommet for leak testing. Ways to carry out the invention
In der Figur 1 ist ein erfindungsgemässes Fotovoltaikelement 1 mit einem, auf einer Seite der Dichtungsbahn befestigten Photovoltaikmodul 2.1 abgebildet. Die Kontaktstellen 4.1 und 4.2 des Photovoltaikmoduls 2.1 sind auf der zur Dichtungsbahn 8 gewandten Seite angeordnet und die Mittel zum elektrischen Anschluss 6.1 beziehungsweise 6.2 durchstossen die Dichtungsbahn 8. Die Kontaktstellen 4.1 , 4.2 führen jeweils die positive beziehungsweise negative Polarität des jeweiligen Photovoltaikmoduls heraus. Die an den jeweiligen Kontaktstellen 4.1 , 4.2 befestigten Mittel zum elektrischen Anschluss 6.1 , beziehungsweise 6.2, können verwendet werden, um das Fotovoltaikelement 1 mit weiteren Fotovoltaikelementen seriell oder parallel zu verbinden. Natürlich können die an den Kontaktstellen 4.1 , 4.2 befestigten Mittel zum elektrischen Anschluss 6.1 , beziehungsweise 6.2, die Dichtungsbahn auch gemeinsam am selben Ort durchstossen. Im Falle eines Fotovoltaikelement 1 mit mehreren auf einer Seite der Dichtungsbahn befestigten Photovoltaikmodulen können die Photovoltaikmodule untereinander seriell oder parallel verbunden sein, wobei im Fall einer seriellen Verbindung unter anderem der Vorteil einer höheren Spannung, bei der parallelen Verbindung einer höheren Stromstärke resultiert.FIG. 1 illustrates a photovoltaic element 1 according to the invention with a photovoltaic module 2.1 mounted on one side of the geomembrane. The contact points 4.1 and 4.2 of the photovoltaic module 2.1 are arranged on the side facing the waterproofing membrane 8 and the means for electrical connection 6.1 or 6.2 pierces the sealing membrane 8. The contact points 4.1, 4.2 each lead out the positive or negative polarity of the respective photovoltaic module. The means attached to the respective contact points 4.1, 4.2 means for electrical connection 6.1, or 6.2, can be used to connect the photovoltaic element 1 with other photovoltaic elements in series or in parallel. Of course, attached to the contact points 4.1, 4.2 means for electrical connection 6.1, or 6.2, the geomembrane also pierced together at the same place. In the case of a photovoltaic element 1 having a plurality of photovoltaic modules mounted on one side of the geomembrane, the photovoltaic modules may be connected to each other in series or in parallel, with the advantage of a higher voltage in the case of a serial connection, resulting in a higher current in the parallel connection.
In der Figur 2 ist das Fotovoltaikelement 1 aus Figur 1 abgebildet, wobei zu erkennen ist, dass eine Abdeckungsbahn 5 auf der Unterseite der Dichtungsbahn 8 aufgebracht, insbesondere verklebt und/oder verschweisst, ist und dadurch auf sichere Weise die Gewähr für eine dauerhafte Abdichtung von Dächern mit Hilfe der Photovoltaikelemente 1 bietet.In FIG. 2, the photovoltaic element 1 from FIG. 1 is depicted, wherein it can be seen that a cover sheet 5 is applied, in particular adhesively bonded and / or welded, to the underside of the sealing sheet 8, thereby ensuring in a secure manner the permanent sealing of Roofs with the help of photovoltaic elements 1 offers.
Die Figur 3 zeigt ein erfindungsgemässes Photovoltaikelement 1 in teilweise aufgerolltem Zustand, bestehend aus einer Dichtungsbahn 8, auf der vier Photovoltaikmodule 2.1 bis 2.4 fixiert sind und welches über eine gemeinsame Steckverbindung 3 für einen äusseren Stromanschluss verfügt.FIG. 3 shows a photovoltaic element 1 according to the invention in a partly rolled-up state, consisting of a sealing sheet 8, on which four photovoltaic modules 2.1 to 2.4 are fixed and which has a common plug connection 3 for an external power connection.
Die Figur 4 zeigt ein solches Photovoltaikelement aus der Figur 3 in einem entrollten Zustand, wobei zur Darstellung der Erfindung im linken Bereich an den einzelnen Photovoltaikmodulen 2.1 bis 2.4 Kontaktstellen 4.1 , 4.2 erkennbar sind, die jeweils die positive beziehungsweise negative Polarität des jeweiligen Photovoltaikmoduls herausführen und an denen Mittel zum elektrischen Anschluss an die Kontaktstellen 6.1 , beziehungsweise 6.2, befestigt sind. Diese Kontaktstellen 4.1 , 4.2 sind auf der Unterseite der Photovoltaikmodule 2.1 bis 2.4 angebracht, so dass sie in Richtung der darunter liegenden Dichtungsbahn 8 zeigen. An diesen Kontaktstellen 4.1 undFIG. 4 shows such a photovoltaic element from FIG. 3 in an unrolled state, with the illustration of the invention in the left Area at the individual photovoltaic modules 2.1 to 2.4 contact points 4.1, 4.2 can be seen, each leading out the positive or negative polarity of the respective photovoltaic module and where means for electrical connection to the contact points 6.1, or 6.2, are attached. These contact points 4.1, 4.2 are mounted on the underside of the photovoltaic modules 2.1 to 2.4 so that they point in the direction of the underlying geomembrane 8. At these contact points 4.1 and
4.2 sind einerseits Mittel zur elektrischen Verbindung 7.1 bis 7.3 zwischen den einzelnen Photovoltaikmodulen 2.1 bis 2.4 kontaktiert, die unmittelbar nach ihrer jeweiligen Kontaktstellen die Dichtungsbahn 8 an Durchstosspunkten durchstossen, auf der Unterseite der Dichtungsbahn 8 verlaufen und wieder über einen Durchstosspunkt zur entgegengesetzt polarisierten Kontaktstelle des darüber liegenden Photovoltaikmoduls die Dichtungsbahn 8 nochmals durchstossen. Endständig in der seriellen Verbindungsreihe der Photovoltaikmodule 2.1 bis 2.4 ist jeweils ein Mittel zum elektrischen Anschluss 6.1 beziehungsweise 6.2 mit der Kontaktstelle verbunden, wobei diese unmittelbar hinter der Kontaktstelle die Dichtungsbahn 8 durchstossen und auf die Seite, auf der der gesamte elektrische Anschluss des Photovoltaikelementes 1 angeordnet ist, verlaufen, wo sie nochmals die Dichtungsbahn 8 von unten durchstossen. Natürlich ist es auch möglich, die Photovoltaikmodule 2.1 bis 2.4 untereinander parallel zu verbinden.4.2 are on the one hand means for electrical connection 7.1 to 7.3 contacted between the individual photovoltaic modules 2.1 to 2.4, immediately after their respective contact points the sealing sheet 8 pierced at Durchstospunkt points, run on the underside of the sealing sheet 8 and again via a piercing point to the opposite polarized contact point of the above lying photovoltaic module, the sealing sheet 8 pierced again. Terminals in the serial connection row of the photovoltaic modules 2.1 to 2.4 are each a means for electrical connection 6.1 or 6.2 connected to the contact point, which pierces the sealing sheet 8 immediately behind the contact point and on the side on which the entire electrical connection of the photovoltaic element 1 is, where they once again pierced the waterproofing membrane 8 from below. Of course it is also possible to connect the photovoltaic modules 2.1 to 2.4 with each other in parallel.
Im Bereich der Durchstosspunkte der dort verlaufenden Mittel zum elektrischen Anschluss 6.1 , 6.2 und Mittel zur elektrischen Verbindung 7.1 bisIn the area of the Durchstosspunkte the there running means for electrical connection 6.1, 6.2 and means for electrical connection 7.1 to
7.3 befindet sich auf der Unterseite der Dichtungsbahn nochmals eine Abdeckungsbahn 5, die diesen gesamten Bereich umschliesst und wasserdicht abdeckt. Die Abdeckungsbahn 5 ist mit der Dichtungsbahn 8 verbunden, insbesondere verklebt und/oder verschweisst, so dass eine sichere Dichtungssituation vorliegt.7.3 is located on the underside of the waterproofing membrane again a cover sheet 5, which encloses this entire area and waterproof covers. The cover sheet 5 is connected to the sealing sheet 8, in particular adhesively bonded and / or welded, so that there is a secure sealing situation.
In der Figur 5 ist der Bereich der Durchstosspunkte beziehungsweise der Kontaktstellen 4.1 und 4.2 im Querschnitt nochmals dargestellt. In der Figur 6 ist das Fotovoltaikelement 1 aus Figur 5 abgebildet, wobei zu erkennen ist, dass die Abdeckungsbahn 5 auf der Unterseite derIn the figure 5 the area of the transmission points or the contact points 4.1 and 4.2 is shown again in cross section. FIG. 6 shows the photovoltaic element 1 from FIG. 5, wherein it can be seen that the cover web 5 is located on the lower side of FIG
Dichtungsbahn 8 aufgebracht, insbesondere verklebt und/oder verschweisst, ist und dadurch auf sichere Weise die Gewähr für eine dauerhafte Abdichtung von Dächern mit Hilfe der Photovoltaikelemente 1 bietet.Sealing web 8 applied, in particular glued and / or welded, and thereby provides a secure way of guaranteeing a permanent sealing of roofs using the photovoltaic elements 1.
Eine weitere Verbesserung der Erfindung kann dadurch geschehen, dass - wie in der Figur 7 gezeigt - zusätzlich eine Anschlusstülle 9 an der Dichtungsbahn 8 im Bereich des durch die Dichtungsbahn 8 und der darunter aufgebrachten, insbesondere verklebten und/oder verschweissten, Abdeckungsbahn 5 gebildeten Hohlraums angebracht ist. Durch diese Anschlusstülle, die beispielsweise flexibel und starr ausgebildet sein kann und als Formstück an die Dichtungsbahn 8 angeschweisst werden kann, kann durch Absaugen von Luft 10 ein Vakuum im Zwischenraum 11 , zwischen der Dichtungsbahn 8 und der Abdeckungsbahn 5, erzeugt werden. Hierdurch lässt sich entsprechend einem gegebenenfalls messbaren Druckabfall die Dichtigkeit überprüfen, so dass die Dichtheit des gesamten Systems des Photovoltaikelementes 1 mit hoher Sicherheit gewährleistet ist. Ausserdem kann diese Anschlusstülle auch dazu verwendet werden, die Mittel zum elektrischen Anschluss 6.1 , beziehungsweise 6.2, nach aussen zu führen, wie es in der Figur 8 dargestellt ist. Durch diese Massnahme werden mögliche Leckagen aufgrund weiterer Durchbrüche vermieden. Zur Dichtigkeitsüberprüfung muss dann ein Luftanschluss verwendet werden, der es erlaubt, kurzfristig den Stecker 3 mit aufzunehmen, oder es müssen die Anschlüsse an den Stecker erst später erstellt werden, so dass ausschliesslich die Mittel zum elektrischen Anschluss 6.1 und 6.2 im Luftanschluss unterzubringen sind.A further improvement of the invention can be achieved in that - as shown in Figure 7 - additionally a connector grommet 9 attached to the geomembrane 8 in the region of the formed by the geomembrane 8 and the underlying, in particular glued and / or welded, cover sheet 5 cavity formed is. Through this connector grommet, which may be formed, for example, flexible and rigid and can be welded as a fitting to the sealing sheet 8, by vacuuming air 10, a vacuum in the space 11, between the geomembrane 8 and the cover sheet 5, are generated. As a result, the tightness can be checked in accordance with an optionally measurable pressure drop, so that the tightness of the entire system of the photovoltaic element 1 is ensured with high reliability. In addition, this connection sleeve can also be used to lead the means for electrical connection 6.1, or 6.2, to the outside, as shown in Figure 8. This measure avoids possible leaks due to further breakthroughs. To check the tightness, an air connection must then be used, which allows the plug 3 to be included at short notice, or the connections to the plug have to be made later, so that only the means for electrical connection 6.1 and 6.2 are to be accommodated in the air connection.
Es versteht sich, dass die vorstehend genannten Merkmale der Erfindung nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der Erfindung zu verlassen. BezugszeichenlisteIt is understood that the abovementioned features of the invention can be used not only in the respectively specified combination but also in other combinations or in isolation, without departing from the scope of the invention. LIST OF REFERENCE NUMBERS
1 Photovoltaikelement1 photovoltaic element
2.1 - 2.4 Photovoltaikmodule2.1 - 2.4 photovoltaic modules
3 Steckverbindung3 plug connection
4.1 , 4.2 Kontaktstellen4.1, 4.2 contact points
5 Abdeckungsbahn 6.1 , 6.2 Mittel zum elektrischen Anschluss5 Cover track 6.1, 6.2 Means for electrical connection
7.1 - 7.3 Mittel zur elektrischen Verbindung7.1 - 7.3 Electrical connection means
8 Dichtungsbahn8 geomembrane
9 Formstück / Anschlusstülle9 fitting / connector grommet
10 Luft 11 Zwischenraum 10 air 11 space

Claims

Patentansprüche claims
1. Photovoltaikelement (1 ) aufweisend eine Dichtungsbahn (8) mit mindestens einem, auf einer Seite der Dichtungsbahn befestigten1. photovoltaic element (1) comprising a sealing web (8) with at least one, attached to one side of the geomembrane
Photovoltaikmodul (2.1-2.4), welches Kontaktstellen (4.1 , 4.2) und Mittel zum elektrischen Anschluss (6.1 , 6.2) aufweist, dadurch gekennzeichnet, dass die Kontaktstellen (4.1 , 4.2) des Photovoltaikmoduls (2.1-2.4) auf der zur Dichtungsbahn (8) gewandten Seite angeordnet sind, und diePhotovoltaic module (2.1-2.4) having contact points (4.1, 4.2) and means for electrical connection (6.1, 6.2), characterized in that the contact points (4.1, 4.2) of the photovoltaic module (2.1-2.4) on the sealing web (8 ) facing side, and the
Mittel zum elektrischen Anschluss (6.1 , 6.2) die Dichtungsbahn (8) durchstossen.Means for electrical connection (6.1, 6.2) the sealing sheet (8) pierced.
2. Photovoltaikelement (1 ) gemäss dem voranstehenden Patentanspruch 1 , dadurch gekennzeichnet, dass die Mittel zum elektrischen Anschluss (6.1 , 6.2) die Dichtungsbahn (8) zweimal durchstossen.2. Photovoltaic element (1) according to the preceding claim 1, characterized in that the means for electrical connection (6.1, 6.2), the sealing sheet (8) pierced twice.
3. Photovoltaikelement (1 ) gemäss einem der voranstehenden Patentansprüche 1 bis 2, dadurch gekennzeichnet, dass mindestens zwei auf einer Seite der Dichtungsbahn befestigte3. Photovoltaic element (1) according to one of the preceding claims 1 to 2, characterized in that at least two attached to one side of the geomembrane
Photovoltaikmodule (2.1-2.4), sowie Mittel zur elektrischen Verbindung (7.1-7.3) vorhanden sind.Photovoltaic modules (2.1-2.4), as well as means for electrical connection (7.1-7.3) are present.
4. Photovoltaikelement (1 ) gemäss dem voranstehenden Patentanspruch 3, dadurch gekennzeichnet, dass die Mittel zur elektrischen Verbindung (7.1-7.3) die Kontaktstellen (4.1 , 4.2) untereinander elektrisch seriell verbinden. 4. photovoltaic element (1) according to the preceding patent claim 3, characterized in that the means for electrical connection (7.1-7.3) connect the contact points (4.1, 4.2) with each other electrically in series.
5. Photovoltaikelement (1 ) gemäss einem der voranstehenden Patentansprüche 1 bis 4, dadurch gekennzeichnet, dass die Dichtungsbahn (8) eine flexible, bevorzugt eine flüssigkeitsdichte aus Kunststoff hergestellte Dichtungsbahn (8) ist.5. Photovoltaic element (1) according to one of the preceding claims 1 to 4, characterized in that the sealing sheet (8) is a flexible, preferably a liquid-tight sealing sheet made of plastic (8).
6. Photovoltaikelement (1 ) gemäss einem der voranstehenden Patentansprüche 1 bis 5, dadurch gekennzeichnet, dass im Bereich von Durchstosspunkten der Dichtungsbahn (8) auf der6. Photovoltaic element (1) according to one of the preceding claims 1 to 5, characterized in that in the region of Durchstosspunkten the geomembrane (8) on the
Unterseite der Dichtungsbahn (8) eine zusätzliche Abdeckungsbahn (5) entlang der Durchstosspunkte aufgebracht, insbesondere aufgeschweisst und/oder aufgeklebt, ist.Underneath the geomembrane (8) an additional cover sheet (5) along the Durchstosspunkte applied, in particular welded and / or glued, is.
7. Photovoltaikelement (1 ) gemäss dem voranstehenden Patentanspruch 6, dadurch gekennzeichnet, dass die Abdeckungsbahn (5) aus Kunststoff hergestellt ist.7. photovoltaic element (1) according to the preceding claim 6, characterized in that the cover sheet (5) is made of plastic.
8. Photovoltaikelement (1 ) gemäss dem voranstehenden Patentanspruch 6, dadurch gekennzeichnet, dass die Abdeckungsbahn (5) aus dem gleichen Material besteht wie die Dichtungsbahn (8).8. photovoltaic element (1) according to the preceding patent claim 6, characterized in that the cover web (5) consists of the same material as the geomembrane (8).
9. Photovoltaikelement (1 ) gemäss einem der voranstehenden Patentansprüche 6 bis 8, dadurch gekennzeichnet, dass die Abdeckungsbahn (5) in ihrer Längsrichtung entlang der9. Photovoltaic element (1) according to one of the preceding claims 6 to 8, characterized in that the cover sheet (5) in its longitudinal direction along the
Durchstosspunkte verläuft. Penetration points runs.
10. Photovoltaikelement (1 ) gemäss einem der voranstehenden Patentansprüche 6 bis 9, dadurch gekennzeichnet, dass im Bereich der Abdeckungsbahn (5) ein Formstück (9) angeordnet ist, welches einen luftdurchgängigen Anschluss an einen durch10. Photovoltaic element (1) according to one of the preceding claims 6 to 9, characterized in that in the region of the cover web (5) a shaped piece (9) is arranged, which an air-through connection to a through
Abdeckungsbahn (5) und Dichtungsbahn (8) gebildeten Hohlraum (11 ) schafft.Covering web (5) and sealing membrane (8) formed cavity (11) creates.
11. Photovoltaikelement (1 ) gemäss dem voranstehenden Patentanspruch 10, dadurch gekennzeichnet, dass das Formstück (9) mit der Dichtungsbahn (8) verbunden, insbesondere verklebt und/oder verschweisst, ist.11. photovoltaic element (1) according to the preceding claim 10, characterized in that the fitting (9) connected to the sealing web (8), in particular glued and / or welded, is.
12. Photovoltaikelement (1 ) gemäss dem voranstehenden Patentanspruch12. Photovoltaic element (1) according to the preceding claim
10, dadurch gekennzeichnet, dass das Formstück (9) auf der Unterseite der Dichtungsbahn (8) verbunden, insbesondere verklebt und/oder verschweisst, ist.10, characterized in that the shaped piece (9) on the underside of the sealing web (8) connected, in particular glued and / or welded, is.
13. Photovoltaikelement (1 ) gemäss einem der voranstehenden Patentansprüche 10 bis 12, dadurch gekennzeichnet, dass mindestens ein Mittel zum elektrischen Anschluss (6.1 , 6.2) durch das Formstück (9) nach aussen geführt wird.13. Photovoltaic element (1) according to any one of the preceding claims 10 to 12, characterized in that at least one means for electrical connection (6.1, 6.2) through the fitting (9) is guided to the outside.
14. Photovoltaikelement (1 ) gemäss einem der voranstehenden Patentansprüche, dadurch gekennzeichnet, dass die Mittel zum elektrischen Anschluss (6.1 , 6.2) Steckverbindungen14. Photovoltaic element (1) according to one of the preceding claims, characterized in that the means for electrical connection (6.1, 6.2) plug connections
(3) aufweisen. (3).
15. Photovoltaikelement (1 ) gemäss einem der voranstehenden Patentansprüche, dadurch gekennzeichnet, dass das Photovoltaikmodul (2.1-2.4) mindestens zwei im Betrieb unterschiedliche Polarität führende Kontaktstellen (4.1 , 4.2) aufweist.15. Photovoltaic element (1) according to one of the preceding claims, characterized in that the photovoltaic module (2.1-2.4) has at least two different polarity in operation leading contact points (4.1, 4.2).
16. Photovoltaikelement (1 ) gemäss einem der voranstehenden Patentansprüche, dadurch gekennzeichnet, dass das Photovoltaikmodul (2.1-2.4) ein flexibles Photovoltaikmodul ist. 16. Photovoltaic element (1) according to one of the preceding claims, characterized in that the photovoltaic module (2.1-2.4) is a flexible photovoltaic module.
EP09780755A 2008-07-17 2009-07-17 Photovoltaic element Withdrawn EP2313932A2 (en)

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EP08160613A EP2146382A1 (en) 2008-07-17 2008-07-17 Photovoltaic element
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PCT/EP2009/059207 WO2010007154A2 (en) 2008-07-17 2009-07-17 Photovoltaic element

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DE102010039880A1 (en) * 2010-08-27 2012-03-29 Tesa Se Method for contacting solar modules
WO2012082917A1 (en) * 2010-12-15 2012-06-21 E. I. Du Pont De Nemours And Company Method for sealing electrical leads passing through an access aperture using a sealing plug and module produced thereby
EP2528097A1 (en) * 2011-05-27 2012-11-28 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Photovoltaic device and method of manufacturing the same
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WO2010007154A3 (en) 2010-12-16
WO2010007154A2 (en) 2010-01-21

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