EP2569807A2 - Système de mise en contact par connexion pour modules solaires - Google Patents

Système de mise en contact par connexion pour modules solaires

Info

Publication number
EP2569807A2
EP2569807A2 EP11709917A EP11709917A EP2569807A2 EP 2569807 A2 EP2569807 A2 EP 2569807A2 EP 11709917 A EP11709917 A EP 11709917A EP 11709917 A EP11709917 A EP 11709917A EP 2569807 A2 EP2569807 A2 EP 2569807A2
Authority
EP
European Patent Office
Prior art keywords
contact
arrangement according
module
solar
solar module
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Withdrawn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
EP11709917A
Other languages
German (de)
English (en)
Inventor
Karsten Funk
Martin Zippel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2569807A2 publication Critical patent/EP2569807A2/fr
Withdrawn legal-status Critical Current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
    • H01L31/02—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
    • H01L31/02013—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 comprising output lead wires elements
    • 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
    • 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
    • H01L31/044—PV modules or arrays of single PV cells including bypass diodes
    • 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
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • 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
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
    • 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 connection contact arrangement for solar modules with a plurality of solar cells connected to strings, wherein at least the contacts required for connection contacting are realized by means of solderable, located on the module interconnects and lead ends of these interconnects to a contact holder, which also with the module is connected, according to the preamble of claim 1.
  • connection arrangements in particular connection boxes for photovoltaic modules, are previously known, for example, from DE 102008 057 078 A1.
  • this solution is based on a junction box, including pre-assembled connection cable, which are in electrical connection with a stamped grid, wherein the lead frame has a conductor track structure which receives electrical or electronic components, in particular bypass diodes.
  • bent sections are present on the stamped grid, which are oriented in a direction deviating from the stamping grid direction, wherein in this orientation direction in the can body openings are present, in which contact means of the photovoltaic module intervene.
  • the bending sections are z. B. formed as a lyre or omega contact clip, which have two opposite, widening in the direction of the module leg and a clamping part.
  • connection units for photovoltaic solar modules belong to the state of the art, there being exposed connecting sections of the conductor track on the module.
  • a connection unit is to be created, which can be quickly connected to the photovoltaic solar module and in which individual parts can be easily exchanged.
  • the solar module is provided with the above-mentioned exposed connection portions of the conductor tracks.
  • the actual connection unit consists of a main body and at least one Einschubgephaseuseteil and internal electrical contacts and components.
  • connection unit itself is arranged sealingly directly on the surface of the solar module.
  • the main body has a recess in which electrical contact elements lying on the inside are designed, arranged and positioned such that they can be contacted with plug-in housings and their individual parts and / or the conductors of the connecting cable via plug connections.
  • German utility model DE 202005018884 IM is a
  • the junction box comprises a housing in which connection means for electrically connecting the solar panels are present. Furthermore, in the
  • connection means are located, which are electrically connected to the connection means, wherein the diodes are designed as provided with the connection wires components.
  • the connection means comprise a plurality of adjacent metallic contact elements.
  • the contact elements are large-area clamping parts, the diodes each with their
  • a panel-like electrical module with a flat surface and exposed contactable terminal sections is part of a substantially planar printed conductor structure
  • connection unit Connecting the actual module previously known.
  • all electrical transitions must be protected against ingress of moisture. This protection also applies to bypass diodes to be used.
  • the object to be solved is to make the necessary electrical connections between a connection unit and the solar module not only by simple means, but also mechanically feasible.
  • the means for contacting the connection sections of the module out of the plane of the conductor track structure are curved connection sections which form part of the conductor track structure.
  • the connection sections of the module are in turn rigid and electrical conductor sections that can be bent out of the plane of the conductor track structure of the module.
  • junction boxes In summary, the state of the art in solar modules is usually characterized by the presence of junction boxes.
  • the corresponding junction boxes thereby make a connection of the solar cells connected in strings both with each other and with other modules or with the inverter.
  • the junction boxes are usually made of plastic or metal injection molding and contain metallic connectors that contact the strings mentioned and record between them to be switched bypass diodes. At the cans each connecting cable to the next module including the strain relief can be connected.
  • the entire design can be chosen very flat here, since both the contact holder and the mating connector only serve the electrical connection between the respective Leitbahnenenden and a connection cable and no further space for otherwise necessary bypass diodes is required. Furthermore, according to the invention are required for the operation of the solar module bypass diodes or diode-connected bypass transistors surface or chip mounted with the aforementioned interconnects in electrical connection, wherein the respective interconnect simultaneously forms a heat sink for the heat loss generated during operation.
  • the contact holder is ausgestaltend at least partially integrated into the solar module, in particular laminated and thereby firmly connected to the module.
  • the ends of the interconnects that are turned out of the plane of the solar module can intersect in the region of the contact holder without short circuits to form two pairs of male plug contacts. This makes it possible, a mating connector part in two different positions
  • Short-circuit-free crossing forms a first rotation of the free end of the respective interconnect by about 90 °, a first mating contact for the
  • a second turn of about 90 ° forms a crossing section and a third turn of about 90 ° forms a second
  • the first and the second mating contact are formed laterally offset, wherein the crossing sections are flat and spaced and therefore isolated from each other over each other.
  • Mating connector record a protection or module disconnect circuit to interrupt in case of failure, the current flow, in the area before
  • an intermediate plug which comprises a father plug contact pair and a mother plug contact pair, which are arranged on opposite sides of the intermediate plug, wherein in relation to the solar module function optimizing circuit or such electronic components can be arranged in the intermediate plug.
  • the respective mating connector part can be fixed to the solar module with a securing clip, which can also be made flat and which has elastic properties, so that at the same time a strain relief is effected.
  • a securing clip which can also be made flat and which has elastic properties, so that at the same time a strain relief is effected.
  • Fig. 1 shows a basic electrical interconnection of solar cells in
  • FIG. 2 shows a plan view of a plastic-coated contact holder with two opposite father contact pairs
  • Fig. 3 is a bottom view of the mating connector part with female plug contacts and lateral connection cables;
  • Fig. 4 shows a basic design of the free ends of the interconnects, once superscript as a mating contact to
  • Plug contact and designed as non-contact junction of the tracks and second contact for use in a Contact holder according to FIG. 2 before the encapsulation or the lamination;
  • Fig. 5 is a view similar to that of FIG. 4 with short-circuit-free crossing of the interconnects, executed and used in the contact holder shown with
  • Fig. 6 shows a basic interconnection of a chain of
  • Fig. 7 top view and side view of both sides of the contact holder attached tabs for fixing a
  • FIG. 8 top view and side view of an embodiment of a flat formed securing bracket with locking lugs or locking tongues, which are inserted into the tabs of FIG.
  • FIG. 1 shows a basic electrical connection of individual solar cells 1 to strings (string 1 to 3) at the module level, the contacts required for connection contacting being realized by means of solderable conductor tracks 2 located on the module.
  • bypass diodes 3 are integrated.
  • Ends of the interconnects 2 are in the region of the contact holder to be attached (not shown) by turning superscript, in section 4. These twisted in section 4 raised ends of the interconnects are then fixed by the contact holder (see Fig. 2) and mechanically embedded, namely in such a way that a mating connector part (FIG. 3) makes electrical contact possible. Due to the arrangement of the bypass diodes 3 in the immediate vicinity and at least partially on the respective interconnect 2, the latter form a heat sink for the resulting heat loss. Moreover, the interconnects 2 accommodating the bypass diodes 3 are spatially remote from the actual solar cells 1, so that the resulting heat does not reach the cells and their efficiency is reduced by increasing the temperature. As can be seen from the schematic illustration according to FIG. 1, the quantities of heat generated by the bypass diodes 3 can be efficiently distributed over a very large area.
  • This counter-plug chain consists of a cable 6 preferably molded half shell-shaped mating connector parts (see Fig. 3) with corresponding nut-plug contacts 7, which are formed to match the father-plug contacts 8 of the contact holder 5.
  • the mating connector is designed so that it can be plugged exactly onto the contact holder 5, wherein the contact holder can be designed so that the mating connector can be positioned in two different directions. In both orientations, z. B. 0 ° - or 180 ° orientation, a correct interconnection of the solar module is ensured, by the cross-over of the interconnects shown in Figures 4 and 5 in the embedded contact holder. 5
  • first mating contact 10 By the mentioned sectionwise 90 ° twist results in a first mating contact 10 and by a further rotation behind the crossing section 9, a second mating contact 11.
  • the corresponding first and second mating contacts 10 and 11 are then taken from the contact module 5, wherein openings 12 for upright guided and as father plug contacts 7 Serving interconnects contacting the mother plug contacts of the mating connector are available.
  • a seal may be provided in the context of the mating connector 13, so that unused openings 12 are closed in the contact holder 5 and thus protected from environmental influences.
  • the individual mating connectors 13 are connected in series in the necessary number corresponding to the individual solar modules.
  • a customer-specific cable set can be made exactly to the cable length provided in the special product. This results in the advantage for the installer that he laid the cables during system installation after mechanical fixation of the modules in the quasi-final step, connects the inverter to the chain and connects the mating connector to the solar modules. With the connection of the last solar module, the circuit closes and the solar system can generate electrical energy in incident sunlight.
  • the electrical equivalent circuit formation of the chain of mating connectors 13 is shown in the lower illustration of FIG.
  • the series connection of the mating connector 13 makes it possible to provide an additional connector and, as it were, to loop it into the circuit.
  • This additional mating connector can record a protection circuit, which only when a release signal, z. B. via a switching device closes the circuit.
  • This protection circuit can also selectively separate the respective circuit in case of maintenance or in case of failure, z. B. building fire, switch off the system selectively de-energized by switching off the enable signal.
  • connection contact arrangement shown can also comprise a simple way of strain relief and fixation of the mating connector 13 to the respective contact holder 5.
  • the tabs 15 have a receiving slot 16 for a locking nose or locking tongue 17, which is part of a locking plate or securing bracket 18.
  • the securing bracket 18 may be made of a resilient material and has a pressure plate 19, which secures the mating connector 13 (see FIG. 8).

Abstract

L'invention concerne un système de mise en contact par connexion conçu pour des modules solaires comprenant une pluralité de cellules solaires reliées de manière à former des strings. Au moins les contacts nécessaires à la mise en contact par connexion sont mis en oeuvre au moyen de tracés conducteurs aptes au brasage présents sur le module, et les extrémités de ces tracés conducteurs mènent à un porte-contact qui est également relié au module. Selon l'invention, chaque extrémité des tracés conducteurs connectés sur le module solaire fait saillie par rapport au plan du module solaire dans la zone du porte-contact de manière torsadée et est introduit dans le porte-contact de manière à former un contact enfichable père, un contact enfichable mère formant un contact enfichable correspondant complémentaire pour établir une connexion électrique avec le contact enfichable père respectif.
EP11709917A 2010-05-12 2011-03-16 Système de mise en contact par connexion pour modules solaires Withdrawn EP2569807A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010028907A DE102010028907A1 (de) 2010-05-12 2010-05-12 Anschlusskontaktierungsanordnung für Solarmodule
PCT/EP2011/053953 WO2011141203A2 (fr) 2010-05-12 2011-03-16 Système de mise en contact par connexion pour modules solaires

Publications (1)

Publication Number Publication Date
EP2569807A2 true EP2569807A2 (fr) 2013-03-20

Family

ID=44625501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11709917A Withdrawn EP2569807A2 (fr) 2010-05-12 2011-03-16 Système de mise en contact par connexion pour modules solaires

Country Status (3)

Country Link
EP (1) EP2569807A2 (fr)
DE (1) DE102010028907A1 (fr)
WO (1) WO2011141203A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2736081B1 (fr) * 2012-11-22 2016-06-22 AZUR SPACE Solar Power GmbH Module de cellules solaires
DE102015111696A1 (de) * 2015-07-17 2017-01-19 Hanwha Q Cells Gmbh Solarmodul mit direkter Kontaktierung einer Bypass-Diode mit einem Querverbinder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001210849A (ja) * 2000-01-24 2001-08-03 Sumitomo Wiring Syst Ltd 太陽電池パネル用のコネクタ
DE10154234A1 (de) 2001-11-07 2003-05-22 Kostal Leopold Gmbh & Co Kg Anordnung bestehend aus einem paneelartig aufgebauten Modul und aus einer Anschlußeinheit, Anschlußeinheit für eine solche Anordnung, Verfahren zum Erstellen einer solchen Anordnung sowie Vorrichtung zum Herstellen einer solchen Anordnung
DE102004053942A1 (de) 2004-11-09 2006-05-11 Solarwatt Solar-Systeme Gmbh Anschlusseinheit für photovoltaische Solarmodule
DE202005018884U1 (de) 2005-12-02 2006-02-09 Multi-Holding Ag Anschlussdose für ein Solarpaneel sowie Solarpaneel mit einer solchen Anschlussdose
DE102007031351B4 (de) * 2007-07-05 2012-05-24 Tyco Electronics Amp Gmbh Verbindungsvorrichtung zur Verbindung eines ersten elektrischen Leiters mit einem elektrischen Leiter eines photovoltaischen Solarmoduls
DE102008057078A1 (de) 2008-06-12 2009-12-17 Anton Gensler Gmbh Anschlussdose für photovoltaische Module
DE202009004930U1 (de) * 2008-09-22 2010-03-04 Weidmüller Interface GmbH & Co. KG Elektrische Anschlussvorrichtung für Flachleiter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011141203A2 *

Also Published As

Publication number Publication date
WO2011141203A2 (fr) 2011-11-17
DE102010028907A1 (de) 2011-11-17
WO2011141203A3 (fr) 2012-07-26

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