DE102009023921A1 - Connection box arrangement for connecting solar modules, has bypass diode electrically connected with solar connection cables in barrier direction, and enclosedly arranged between solar connection cables - Google Patents

Connection box arrangement for connecting solar modules, has bypass diode electrically connected with solar connection cables in barrier direction, and enclosedly arranged between solar connection cables Download PDF

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Publication number
DE102009023921A1
DE102009023921A1 DE102009023921A DE102009023921A DE102009023921A1 DE 102009023921 A1 DE102009023921 A1 DE 102009023921A1 DE 102009023921 A DE102009023921 A DE 102009023921A DE 102009023921 A DE102009023921 A DE 102009023921A DE 102009023921 A1 DE102009023921 A1 DE 102009023921A1
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DE
Germany
Prior art keywords
solar
connection cables
junction box
bypass diode
box assembly
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Withdrawn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
DE102009023921A
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German (de)
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.)
Telegartner Geratebau GmbH
Telegaertner Geraetebau GmbH
Original Assignee
Telegartner Geratebau GmbH
Telegaertner Geraetebau 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 Telegartner Geratebau GmbH, Telegaertner Geraetebau GmbH filed Critical Telegartner Geratebau GmbH
Priority to DE102009023921A priority Critical patent/DE102009023921A1/en
Publication of DE102009023921A1 publication Critical patent/DE102009023921A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6641—Structural association with built-in electrical component with built-in single component with diode
    • 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
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
    • 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

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

The arrangement has a sealed housing with connection contacts connected with solar connection cables, and a bypass diode (2) for maintaining current flow during failure of the solar modules. The bypass diode is arranged outside the housing between a supply line and a discharge line of the solar connection cables. The bypass diode is electrically connected with the solar connection cables in barrier direction and enclosedly arranged between the solar connection cables. The bypass diode is provided with a plastic injection mold.

Description

Die Großzahl der heute am Markt erhältlichen Photovoltaikmodule ist zu dessen Schutz auf ein parallel zum Modul geschaltete Bypassdiode (Schutzdiode) angewiesen. Aufgabe dieser Diode ist es, im Verschattungsfall oder bei Ausfall eines Moduls den Strom der weiteren in Reihe geschalteten Module an dem verschatteten oder ausgefallenen vorbei zu führen.The large number the one available on the market today Photovoltaic modules are to protect it on a parallel to the module switched bypass diode (protective diode) instructed. Task of this Diode is it, in the event of shading or failure of a module the current of the other series connected modules on the shaded or failing to pass by.

Stand der Technik ist es, dass diese Diode innerhalb der Modulanschlussdose (1) angeordnet ist. Abhängig von der Höhe des Stroms, welchen die Module liefern, wird in der Bypassdiode (2) im Bedarfsfall eine entsprechende Verlustleistung umgesetzt. Da die Leistung der Module und damit auch deren Strom stetig steigt, wird diese in der Diode umgesetzte Verlustleistung zunehmend zu einem Problem. Die maßgebende Größe ist dabei die maximale Sperrschichttemperatur der Diode, welche nicht erreicht werden darf. Diese maximale Sperrschichttemperatur liegt bei Halbleiterdioden üblicherweise zwischen 150...200°C. Um die Verlustleistung von der Diode weg an die Umgebung abzuleiten, ist ein entsprechend großes Luftvolumen in der Dose (1) und eine entsprechend große Oberfläche der Dose (1) selbst erforderlich. Diese beiden Maßnahmen widersprechen jedoch dem Wunsch, dass die Anschlussdosen (1) möglichst klein ausfallen.The prior art is that this diode within the module junction box ( 1 ) is arranged. Depending on the amount of current supplied by the modules, in the bypass diode ( 2 ) implemented in case of need a corresponding power loss. Since the power of the modules and thus their current is steadily increasing, this converted in the diode power loss is increasingly a problem. The decisive factor is the maximum junction temperature of the diode, which must not be reached. This maximum junction temperature is usually between 150 ... 200 ° C in semiconductor diodes. In order to dissipate the power loss from the diode to the environment, a correspondingly large volume of air in the can ( 1 ) and a correspondingly large surface of the can ( 1 ) itself required. However, these two measures contradict the desire that the junction boxes ( 1 ) as small as possible.

Das Leitungsdiodenelement (3) ersetzt nun die Bypassdiode (2) im Inneren der Dose und ordnet diese entfernt von der Anschlussdose zwischen den Anschlussleitungen (4) und (5) an. Dabei kann eine großflächige Verbindung (6) und (7), z. B. Crimp- oder Lötverbindung, zwischen den Anschlussdrähten der Diode (2) und den Anschlussleitungen (4) und (5) realisiert werden, was im erheblichen Maße dazu führt, dass die Verlustleistung innerhalb der Anschlussleitungen (4) und (5) abgeführt wird. Dadurch können höhere Bypassströme ermöglicht werden, ohne in den Bereich der maximalen Sperrschichttemperatur der Diode zu gelangen. Weiterhin liegt die thermische „Stresszone” damit ein Stück vom eigentlichen Modul und der Anschlussdose (1) entfernt, was der Haltbarkeit der Klebefläche zwischen Modul und Dose, sowie der Haltbarkeit der Komponenten an sich dienlich ist.The lead diode element ( 3 ) now replaces the bypass diode ( 2 ) inside the box and arranges these away from the junction box between the connecting lines ( 4 ) and ( 5 ) at. This can be a large-scale connection ( 6 ) and ( 7 ), z. Crimping or soldering, between the lead wires of the diode ( 2 ) and the connecting cables ( 4 ) and ( 5 ), which leads to a considerable extent that the power loss within the connecting lines ( 4 ) and ( 5 ) is discharged. As a result, higher bypass currents can be made possible without reaching the region of the maximum junction temperature of the diode. Furthermore, the thermal "stress zone" is thus a piece of the actual module and the junction box ( 1 ), what the durability of the adhesive surface between module and box, and the durability of the components in itself is useful.

Der erforderliche Schutz gegen elektrischen Schlag sowie eindringende Feuchtigkeit wird durch eine geeignete Umhüllung der elektrisch aktiven Komponenten mit Isolationsmaterial realisiert.Of the required protection against electric shock as well as penetrating Moisture is provided by a suitable enclosure of the electrically active components realized with insulation material.

Claims (6)

Anschlussdosenanordnung zum Verbinden von Solarmodulen, im wesentlichen bestehend aus einem dichten Gehäuse mit darin angeordneten Anschlusskontakten, die mit Solaranschlusskabeln verbunden sind und eine Schutzdiode, die der Aufrechterhaltung des Stromflusses z. B. bei Ausfall eines Solarmoduls dient, dadurch gekennzeichnet, dass die Schutzdiode außerhalb des Gehäuses zwischen der Zu- und Ableitung der Solaranschlusskabel angeordnet und mit diesen in Sperrrichtung elektrisch verbunden ist und dass die Schutzdiode umhüllt zwischen beiden Kabeln angeordnet ist.Junction box assembly for connecting solar modules, consisting essentially of a sealed housing with therein connection contacts, which are connected to solar connection cables and a protective diode, the maintenance of the flow of current z. B. is used in the event of failure of a solar module, characterized in that the protective diode outside the housing between the inlet and outlet of the solar connection cable is arranged and electrically connected to these in the reverse direction and that the protective diode is wrapped between two cables. Anschlussdosenanordnung nach Anspruch 1, dadurch gekennzeichnet, dass die Schutzdiode zur Wärmeableitung mit Anschlußdrähten in originaler Länge eingesetzt ist.Junction box assembly according to claim 1, characterized characterized in that the protective diode for heat dissipation with leads in original length is used. Anschlussdosenanordnung nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Schutzdiode mit einer feuchteabweisenden Kunststoffumspritzung versehen ist.Junction box assembly according to claim 1 and 2, characterized characterized in that the protective diode with a moisture-repellent Plastic injection is provided. Anschlussdosenanordnung nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Schutzdiode mit einem miteinander verrastbar ausgebildeten, geteilten Gehäuse versehen ist.Junction box assembly according to claim 1 and 2, characterized in that the protective diode can be locked together with one another trained, split housing is provided. Anschlussdosenanordnung nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass die Anschlussdosenanordnung an der Rückseite der Solarmodule angeordnet ist.Junction box assembly according to claim 1 to 4, characterized characterized in that the junction box assembly on the back the solar modules is arranged. Anschlussdosenanordnung nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass sie mittels doppelseitigem Klebepat auf dem Solarmodul befestigt ist.Junction box arrangement according to claim 1 to 5, characterized characterized in that it by means of double-sided Klebepat on the Solar module is attached.
DE102009023921A 2008-06-12 2009-06-04 Connection box arrangement for connecting solar modules, has bypass diode electrically connected with solar connection cables in barrier direction, and enclosedly arranged between solar connection cables Withdrawn DE102009023921A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102009023921A DE102009023921A1 (en) 2008-06-12 2009-06-04 Connection box arrangement for connecting solar modules, has bypass diode electrically connected with solar connection cables in barrier direction, and enclosedly arranged between solar connection cables

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008027815 2008-06-12
DE102008027815.7 2008-06-12
DE102009023921A DE102009023921A1 (en) 2008-06-12 2009-06-04 Connection box arrangement for connecting solar modules, has bypass diode electrically connected with solar connection cables in barrier direction, and enclosedly arranged between solar connection cables

Publications (1)

Publication Number Publication Date
DE102009023921A1 true DE102009023921A1 (en) 2010-10-21

Family

ID=42751148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102009023921A Withdrawn DE102009023921A1 (en) 2008-06-12 2009-06-04 Connection box arrangement for connecting solar modules, has bypass diode electrically connected with solar connection cables in barrier direction, and enclosedly arranged between solar connection cables

Country Status (1)

Country Link
DE (1) DE102009023921A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023025631A1 (en) * 2021-08-25 2023-03-02 Weidmüller Interface GmbH & Co. KG Photovoltaic module and connection assembly for a photovoltaic module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023025631A1 (en) * 2021-08-25 2023-03-02 Weidmüller Interface GmbH & Co. KG Photovoltaic module and connection assembly for a photovoltaic module

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Effective date: 20140101