DE102015111768A1 - Solar panel system - Google Patents

Abstract

The invention relates to a solar module system (10, 210, 310) having a solar module (12) which has at least one solar cell string (18, 18a, 18b, 18n) formed from a plurality of solar cells (22) connected in series a main junction box (26, 226), optionally at least one intermediate junction box (66, 166), and with to the respective main junction boxes (26, 226) or intermediate junction boxes (66, 166) releasably infected bypass devices (50).

Description

The invention relates to a solar module system according to the preamble of patent claim 1.

From the DE 10 2011 052 928 A1 is a solar module system with a solar module and a arranged on a rear side of the solar cell module junction box known. The junction box has a receiving space in which a connector, the connecting lines and a plurality of bypass devices has been added.

The object of the invention is to provide a solar module system which is easily adaptable to the respective installation conditions and which has a high reliability.

This object is solved by the subject-matter of independent claims 1, 5 and 6. Advantageous embodiments of the invention are specified in the subclaims.

According to the invention, a solar module system is provided, which has a solar module with at least one first and one second solar cell string, each formed by a plurality of solar cells connected in series, the solar cell strings being electrically connected in series with each other. Furthermore, the solar module system has a first main junction box associated with the first solar cell string and a second main junction box associated with the second solar cell string.

"Assigned" in reference to a main junction box and an intermediate junction box described below means that they each have components, preferably a can terminal, that are electrically connected to the respective solar cell string.

• – ein Anschlussdosen-Gehäuse mit einem an diesem ausgebildeten plattenförmigen Befestigungsabschnitt zur Befestigung des Anschlussdosen-Gehäuses an dem Solarmodul,
• – einen Dosen-Polanschluss zum Abgreifen einer von den Solarzellen erzeugten Spannung, der einen Polanschluss-Abschnitt des Anschlussdosen-Gehäuses zum lösbaren Anschließen einer Leitungsvorrichtung und einen elektrisch mit dem jeweiligen der Solarzellen-Strings verbundenen und zu dem Polanschluss-Abschnitt hinführenden Pol-Kontaktabschnitt aufweist,
• – einen Dosen-Bypassanschluss zum Anschließen einer Bypass-Vorrichtung, wobei der Dosen-Bypassanschluss einen Bypassanschluss-Abschnitt des Anschlussdosen-Gehäuses und eine elektrisch mit dem jeweiligen Solarzellen-String verbundene und zu dem Bypassanschluss-Abschnitt hinführende Bypass-Anschlussvorrichtung aufweist.

The main junction boxes each have:

• A junction box with a plate-shaped fastening section formed thereon for fastening the junction box to the solar module,
• A can terminal for picking up a voltage generated by the solar cells, comprising a terminal portion of the terminal box for releasably connecting a lead and a terminal electrically connected to each of the solar cell strings and leading to the terminal portion Pol contact portion .
• A can by-pass port for connecting a bypass device, the can bypass port having a bypass port portion of the port can body and a bypass port electrically connected to the respective solar cell string and leading to the bypass port portion.

Furthermore, the solar module system has bypass devices. These each have a bypass diode, which is electrically connected to a contact device, and a bypass housing surrounding the bypass diode and the contact device with a contact device having terminal portion which is detachably connected to the socket bypass terminal, so that the bypass diode electrically antiparallel, that is connected in parallel but with the opposite polarity, to the respective solar cell string. As this application speaks of "bypass diode" or "diode" or "diode circuit", it will be understood by those skilled in the art that these terms are also intended to encompass diodeless bypass circuits. Such bypass circuits are known, for example, in the versions of the type SPV1001 ST Microelectronics, the type LX2400 Microsemi or the type SM74611 Texas Instruments.

Since each solar cell string is associated with a main junction box, to each of which a bypass device is plugged, each bypass housing is also provided only in the performance of the solar cell string matched bypass diode or diode circuit. Thus, a heat dissipation away from the bypass diode or the diode circuit is easily possible. For the heat dissipation, it is of particular advantage that the bypass diode or the diode circuit or the diode-less bypass circuit are arranged outside the main junction boxes. The improved heat dissipation away from the bypass diode or from the diode circuit increases the life of the diodes, resulting in a significant improvement in the reliability of the solar module system.

The above-described solar module system forms a basic unit.

Advantageously, the solar module system may comprise at least one further solar cell string, which is electrically connected in series with the first and the second solar cell string. In particular, any natural number of further solar cell strings between the first and the second solar cell string can be electrically connected in series with them. In this way, the solar module system can be extended arbitrarily starting from a basic unit.

• – ein Anschlussdosen-Gehäuse mit einem an diesem ausgebildeten plattenförmigen Befestigungsabschnitt zur Befestigung des Anschlussdosen-Gehäuses an dem Solarmodul,
• – einen Dosen-Polanschluss, der zumindest durch einen Polanschluss-Abschnitt des Anschlussdosen-Gehäuses ausgebildet ist,
• – einen Dosen-Bypassanschluss zum Anschließen einer Bypass-Vorrichtung, wobei der Dosen-Bypassanschluss einen Bypassanschluss-Abschnitt des Anschlussdosen-Gehäuses und eine elektrisch mit dem jeweiligen Solarzellen-String verbundene und zu dem Bypassanschluss-Abschnitt hinführende Bypass-Anschlussvorrichtung aufweist.

In this case, it is particularly advantageous that a respective further solar cell string each associated with an intermediate junction box, each comprising:

• A junction box with a plate-shaped fastening section formed thereon for fastening the junction box to the solar module,
• A can-pole terminal formed at least by a pole terminal portion of the junction box housing,
• A can by-pass port for connecting a bypass device, the can bypass port having a bypass port portion of the port can body and a bypass port electrically connected to the respective solar cell string and leading to the bypass port portion.

Particularly preferably, the intermediate junction box can be constructed the same as the main junction box. In other words, a main junction box can also be used as an intermediate junction box. As a result, the production cost of the solar module system is reduced and this is easier to assemble, as always the same doses are used, so there is no likelihood of confusion of doses.

The connection section of a bypass housing of a respective further bypass device is in each case detachably connected to the socket bypass connection of the respective intermediate connection box, so that the bypass diode or diode-less bypass circuit is electrically connected in anti-parallel to the respective solar cell string.

Since each additional solar cell string is assigned an intermediate junction box, the solar module system starting from the basic unit can be expanded as required by further solar cell strings without having to make design changes to the main junction boxes. This is particularly advantageous when the solar module system is used on building facades. The solar panel system may then be modified by adding or omitting solar cell strings to fit the space conditions such as e.g. the floor height, be adapted in a particularly simple manner.

It can also be advantageously provided that in each case a closure device is plugged into the socket pole connection of the respective intermediate connection box. Thus, the penetration of moisture into the intermediate junction box can be prevented.

• – ein Anschlussdosen-Gehäuse mit einem an diesem ausgebildeten plattenförmigen Befestigungsabschnitt zur Befestigung des Anschlussdosen-Gehäuses an dem Solarmodul,
• – einen Dosen-Bypassanschluss zum Anschließen einer Bypass-Vorrichtung, wobei der Dosen-Bypassanschluss einen Bypassanschluss-Abschnitt des Anschlussdosen-Gehäuses und eine elektrisch mit dem jeweiligen Solarzellen-String verbundene und zu dem Bypassanschluss-Abschnitt hinführende Bypass-Anschlussvorrichtung aufweist.

As already described, at least one further solar cell string between the first and the second solar cell string can be electrically connected in series with the latter. This at least one further solar cell string is assigned in each case an intermediate junction box. This may preferably have:

• A junction box with a plate-shaped fastening section formed thereon for fastening the junction box to the solar module,
• A can by-pass port for connecting a bypass device, the can bypass port having a bypass port portion of the port can body and a bypass port electrically connected to the respective solar cell string and leading to the bypass port portion.

Accordingly, the intermediate connection box can in particular be designed differently from the main connection box. It is particularly advantageous that no additional cover, for example in the form of a closure device is needed for the intermediate junction box. This reduces the number of components of the solar module system. This leads in particular to a higher reliability of the solar module system, since the probability of failure is basically reduced with fewer components. Also, a particularly reliable sealing of the intermediate junction box is ensured, since there are fewer openings in the housing through which moisture can penetrate.

The connection section of a respective bypass housing is detachably plugged into the socket bypass connection, so that the bypass diode or diode-less bypass circuit is electrically connected in anti-parallel to the respective solar cell string.

According to a further embodiment of the solar module system is provided that the solar module system is a solar module with a solar cell string, which is formed by a plurality of electrically connected in series solar cells and having a main junction box.

• – ein Anschlussdosen-Gehäuse mit einem an dem Anschlussdosen-Gehäuse ausgebildeten plattenförmigen Befestigungsabschnitt zur Befestigung des Anschlussdosen-Gehäuses an dem Solarmodul,
• – einen ersten und einen zweiten Dosen-Polanschluss zum Abgreifen einer von den Solarzellen erzeugten Spannung, wobei der erste und ein zweiter Dosen-Polanschluss jeweils einen Polanschluss-Abschnitt des Anschlussdosen-Gehäuses zum Anschließen jeweils einer Leitungsvorrichtung und einen elektrisch mit dem Solarzellen-String verbundenen und zu dem jeweiligen Polanschluss-Abschnitt hinführenden Pol-Kontaktabschnitt aufweisen,
• – einen Dosen-Bypassanschluss für eine Bypass-Vorrichtung, der einen Bypassanschluss-Abschnitt des Anschlussdosen-Gehäuses und eine elektrisch mit dem Solarzellen-String verbundene und zu dem Bypassanschluss-Abschnitt hinführende Bypass-Anschlussvorrichtung aufweist.

The main junction box according to this embodiment has:

• A junction box housing with a plate-shaped fastening section formed on the junction box housing for fastening the junction box to the solar module,
• A first and a second can-pole terminal for picking up a voltage generated by the solar cells, the first and a second can-pole terminal each having a terminal portion of the terminal box for connecting a lead each and electrically connected to the solar cell string and also have respective pole terminal section leading pole contact section,
• A can by-pass port for a bypass device having a bypass port portion of the port can body and a bypass port electrically connected to the solar cell string and leading to the bypass port portion.

Furthermore, the solar module system has the bypass device. This comprises a bypass diode, which is electrically connected to a contact device, and a bypass housing surrounding the bypass diode and the contact device with a contact device having terminal portion which is detachably plugged into the socket bypass terminal, so that the bypass diode Alternatively, the diodeless bypass circuit is electrically connected in anti-parallel to the solar cell string.

In this way, a basic unit is formed with only one solar cell string. Several such basic units can be extended by electrical conduction devices to a solar generator system with any number of solar cell strings. This is particularly advantageous when the solar module system is used as a façade unit, since the solar module system can be used as required, e.g. on gable slopes or projecting facade areas, can be adjusted.

It is also an advantage here that a bypass device is connected to the main junction box assigned to the solar cell string, with only one by-pass diode or diode circuit or diode-less diode adapted to the solar cell string per bypass housing Bypass circuit is provided. Thus, the heat dissipation away from the bypass diode or the diode circuit or the diode bypass circuit is easily possible. For the improved heat dissipation, it is of particular advantage that the bypass diode or the diode circuit or diode-less bypass circuit are arranged outside the main junction boxes. The improved heat dissipation away from the bypass diode or the diode circuit increases the life of the diodes or other electronic components of the diodeless bypass circuit, resulting in a significant improvement in the reliability of the solar module system.

• – ein Solarmodul mit einem Solarzellen-String, der durch eine Vielzahl elektrisch in Reihe geschalteter Solarzellen gebildet ist,
• – eine erste und eine zweite Haupt-Anschlussdose, jeweils aufweisend:
• – ein Anschlussdosen-Gehäuse mit einem an diesem ausgebildeten plattenförmigen Befestigungsabschnitt zur Befestigung des Anschlussdosen-Gehäuses an dem Solarmodul
• – einen Dosen-Polanschluss zum Abgreifen einer von den Solarzellen erzeugten Spannung, der einen Polanschluss-Abschnitt des Anschlussdosen-Gehäuses zum lösbaren Anschließen einer Leitungsvorrichtung und einen elektrisch mit dem jeweiligen der Solarzellen-String verbundenen und zu dem Polanschluss-Abschnitt hinführenden Pol-Kontaktabschnitt aufweist,
• – einen Dosen-Bypassanschluss zum Anschließen einer Bypass-Vorrichtung, wobei der Dosen-Bypassanschluss einen Bypassanschluss-Abschnitt des Anschlussdosen-Gehäuses und eine elektrisch mit dem jeweiligen Solarzellen-String verbundene und zu dem Bypassanschluss-Abschnitt hinführende Bypass-Anschlussvorrichtung aufweist,
• – die Bypass-Vorrichtung, aufweisend:
• – eine Bypass-Diode oder diodenlose Bypass-Schaltung, die mit einer Kontaktvorrichtung elektrisch verbunden ist,
• – ein die Bypass-Diode oder diodenlose Bypass-Schaltung und die Kontaktvorrichtung umgebendes Bypassgehäuse mit einem die Kontaktvorrichtung aufweisenden Anschlussabschnitt, der an den Dosen-Bypassanschluss lösbar angesteckt ist, sodass die Bypass-Diode oder diodenlose Bypass-Schaltung elektrisch antiparallel zu dem Solarzellen-String geschaltet ist.

According to a further embodiment, a solar module system is provided which comprises:

• A solar module with a solar cell string formed by a plurality of solar cells connected in series,
• - a first and a second main junction box, each comprising:
• - A junction box with a formed on this plate-shaped mounting portion for attaching the junction box to the solar module
• A can terminal for picking up a voltage generated by the solar cells, comprising a terminal portion of the terminal box for releasably connecting a lead and a terminal electrically connected to each of the solar cell string and leading to the terminal portion Pol contact portion .
• A can by-pass port for connecting a bypass device, the can-bypass port having a bypass port portion of the port can body and a bypass port electrically connected to the respective solar string and leading to the bypass port portion,
• The bypass device comprising:
• A bypass diode or diodeless bypass circuit electrically connected to a contact device,
• A bypass housing surrounding the by-pass diode or diode bypass circuit and the contact device with a terminal portion having the contact device detachably connected to the can bypass terminal so that the bypass diode or diodeless bypass circuit is electrically antiparallel to the solar cell string is switched.

In this embodiment as well, the solar module system forms a basic unit with only one solar cell string, which can be expanded by electrical line devices with further such basic units or with basic units of the other embodiments to form a solar generator system with an arbitrary number of solar cell strings , The advantages described above can also be achieved in this way.

In all embodiments, it can preferably be provided that the solar module has a carrier plate and a cover plate, between which the solar cells are arranged. These preferably each have a thickness in the range between 1 and 12 mm, more preferably in the range of 3 to 10 mm and particularly preferably of about 8 mm.

Particularly preferably, the plate-shaped fastening portion of the junction box housing between the support plate and the cover plate may be located. This is to be understood in particular that the attachment portion may be located in relation to a respective thickness direction of the support plate and the cover plate between them. As a result, the main and intermediate junction boxes can be arranged on one end face of the solar module, resulting in a particularly space-saving arrangement of junction boxes. This is particularly advantageous when using the solar module system as a facade system, since there is often tight space. Furthermore, the junction boxes can be arranged better hidden because a viewer usually looks on one of the facade or facing away from main surface of the solar module system. Thus, the aesthetic impression of the solar module system can be improved in this way.

In all embodiments, provision can advantageously be made for the bypass connection section to be designed as a recess of the junction box housing, and for the connection section of the bypass housing to be designed as a plug. Alternatively, it may be provided that the bypass connection section is designed as a connector formed on the junction box housing and the connection section of the bypass housing as a recess of the bypass housing. In both cases, a particularly simple change of the bypass device in case of damage is possible.

In all embodiments, it can preferably be provided that the connection section of the bypass housing has a cross section designed to be complementary to the bypass connection section of the junction box housing.

In this case, it can be particularly preferably provided that the connection section of the bypass housing has a groove which extends in a longitudinal direction along a lateral surface of the connection section defining the cross section. The bypass port portion then has a web complementary to the groove. In this way it is ensured that the bypass device can only be plugged into the junction box housing in one way. In particular, it is thus possible to prevent the bypass diode or the diode circuit or diode-less bypass circuit from being connected to the junction box housing with incorrect polarity. The bypass device is thus verpolungssicher releasably attached to the junction box housing. Groove and web can also be provided in each case in kinematic reversal at the bypass connection portion of the junction box housing or the connection portion of the bypass housing.

In addition, in all embodiments it can be provided that at least one of the housings of the main junction boxes or the intermediate junction boxes has at least one locking device for mechanically securing the bypass device or a plug-in device in a state connected to the junction box housing.

• (a) an dem Anschlussdosen-Gehäuse der Haupt-Anschlussdose oder der Zwischen-Anschlussdose ist ein Rastbügel vorgesehen, wobei das Bypassgehäuse eine Rastnut zur Aufnahme eines Rastabschnitts des Rastbügels aufweist,
• (b) der Polanschluss-Abschnitt oder der Bypassanschluss-Abschnitt des Anschlussdosen-Gehäuses der Haupt-Anschlussdose oder der Zwischen-Anschlussdose und der Anschlussabschnitt des Bypassgehäuses bilden eine Presspassung aus.

Preferably, the locking device is formed in one of the following alternative ways:

• (A) a latching clip is provided on the junction box housing the main junction box or the intermediate junction box, wherein the bypass housing has a latching groove for receiving a latching portion of the latching clip,
• (b) The pole terminal portion or the bypass terminal portion of the junction box of the main junction box or the intermediate junction box and the terminal portion of the bypass housing form an interference fit.

In all embodiments, it can preferably be provided that the bypass housing has a latching groove into which a latching section of the latching clip engages. As a result, the bypass device in the infected state is mechanically secured in a particularly reliable manner to the junction box housing.

In all embodiments, it can advantageously be provided that an annular seal is arranged on the connection section of the bypass housing. This is preferably located close to a base portion of the same with respect to a longitudinal direction of the terminal portion of the bypass housing. The ring seal ensures additional sealing of the junction box housing, effectively preventing corrosion or other damage caused by moisture penetration.

Embodiments of the invention will be explained in more detail with reference to the drawings. It shows:

1 a schematic overview of the electrical interconnection and the structure of a solar module system according to the invention according to a first embodiment;

2 a schematic overview of the electrical interconnection and the structure of a variant of the solar module system according to the invention according to the first embodiment;

3 the Solar module system according to the first embodiment in a plan view of the solar module system in a state in which the bypass devices are not plugged;

4 an enlarged view of a section showing a main junction box of the solar module system according to the first embodiment, in a perspective view;

5 an enlarged view of a section showing a main junction box of the solar module system according to the first embodiment with an infected bypass device and an infected line device, as a plan view;

6 an enlarged view of a section showing an intermediate junction box of the solar module system according to another variant of the first embodiment, in plan view;

7 a solar module system according to a second embodiment in a plan view of the solar module system, in a state in which the bypass device is not plugged;

8th an exploded view of a main junction box of a solar module system according to the first embodiment;

9 a plan view of a can bypass connection of a junction box housing;

10 a plan view of a can-Polanschluss a junction box housing; and

11 a solar module system according to a third embodiment in a plan view of the solar module system in a state in which the bypass devices are not infected.

1 shows a schematic overview of the structure of a solar module system according to the invention 10 according to a first embodiment. According to the first embodiment, the solar module system 10 a solar module 12 , Main junction boxes 26 , in particular a first and a second main junction box 26a and 26b , and to the respective main junction boxes 26 releasably connected bypass devices 50 on.

As 1 shows, points the solar module 12 at least a first and a second solar cell string 18a and 18b on, each by a plurality of electrically connected in series solar cells 22 is formed. The solar cell strings 18a . 18b are electrically connected in series with each other.

At the in 2 shown variant of the first embodiment of the solar module system 10 is another solar cell string 18n between the first solar cell string 18a and the second solar cell string 18a . 18b electrically connected in series with these. According to 2 is between the first and the second solar cell string 18a . 18b for example, just another solar cell string 18n arranged. Generally, however, a natural number N of other solar cell strings 18n between the first solar cell string 18a and the second solar cell string 18b be arranged and electrically connected in series between them.

The term "between" generally means, with respect to the solar cell strings, that an electrical carrier carrying the solar cells 22 goes through, first the first solar cell string 18a , then the other solar cell strings 18n and finally the second solar cell string 18b goes through, and this direction is also reversible.

With regard to the arrangement of the other solar cell strings 18n can these, as in 2 shown along a longitudinal direction L12 of the solar module 12 seen behind the first solar cell string 18a and the second solar cell string 18b behind in the longitudinal direction L12 of the solar module 12 seen last additional solar cell string 18n be arranged.

As in the 1 and 2 shown is the first main junction box 26a the first solar cell string 18a and the second main junction box 26b the second solar cell string 18b assigned, that is, they have an electrical with the respective solar cell string 18a . 18b connected can connection device on. As 2 shows, can any further solar cell string 18n an intermediate junction box 66 be assigned, that is, it has an electrical with the respective other solar cell string 18n connected can connection device 34 on. The main junction boxes 26 as well as the intermediate junction boxes 66 each have a junction box housing 28 to which a bypass device 50 is releasably infected. This connector as well as the main and intermediate connection boxes 26 . 66 are in the 1 and 2 merely indicated schematically and will be described in more detail below.

As the 1 and 2 further show the bypass device 50 a bypass diode or a diodeless bypass circuit 56 on. Both the main junction boxes 26 as well as the intermediate junction boxes 66 each have the can connection device 34 on, which electrically with the respective solar cell string 18a . 18b . 18n connected is. Here are the can connection device 34 and the bypass device 50 each carried out such that the bypass diode or diode-less bypass circuit electrically anti-parallel to the respective solar cell string 18a . 18b . 18n is switched.

3 shows a solar module system 10 according to the first embodiment in a plan view of the solar module 12 , According to the presentation of the 3 indicates the solar module system 10 a solar module 12 with a first solar cell string 18a , a second solar cell string 18b and another solar cell string 18n on. The solar cell strings 18a . 18b . 18n are each by a plurality of electrically connected in series solar cells 22 formed and electrically connected in series with each other. The further solar cell string 18n is between the first and the second solar cell string 18a . 18b arranged and electrically connected in series between them. The further solar cell string 18n can, as in 1 shown, also omitted. Also, additional additional solar cell strings 18n between the first and the second solar cell string 18a . 18b be arranged.

As 3 shows, points the solar module system 10 a the first solar cell string 18a assigned first main junction box 26a and a second solar cell string 18b assigned second main junction box 26b on. Optionally, as in 3 shown an intermediate junction box 66 that the further solar cell string 18n is assigned to be provided.

The first and the second main junction box 26a . 26b or generally a main junction box 26 each has a junction box housing 28 with a plate-shaped attachment portion formed thereon 28a for fixing the junction box 28 on the solar module 12 on. The attachment section 28a can in particular in one piece, ie in material unit, with the junction box housing 28 be educated. Alternatively, the attachment portion 28a also with the junction box 28 be connected for example by an adhesive bond.

As 4 shows, have the main junction boxes 26 continue a can-pole connection 30 for picking up one of the solar cells 22 generated voltage. The can-pole connection 30 is through a pole connection section 32 of the junction box 28 and one electrically with each of the solar cell string 18a . 18b connected and to the pole terminal section 32 leading pole contact section 36a educated.

The pole connection section 32 can, as in 4 shown by a recess of the junction box 28 be formed, so that formed as a plug end portion of a conduit device 82 in the recess is releasably inserted. Alternatively, it may be provided that the pole connection section 32 as one on the junction box 28 formed and in particular projecting from this projecting portion which forms a plug, is formed (not shown), so that a recess having an end portion of a conduit device 82 releasably attachable to the plug. In general, the pole connection section 32 thus formed for releasably coupling a Ansteckvorrichtung, the Ansteckvorrichtung 76 a conduit device 82 or a closure device 68 can be. In each case, a lateral surface of the pole connection section designed as a plug or a recess defines in each case 32 a pole terminal longitudinal direction L32, along which a lapel device 76 is infected.

The can-pole connection 30 is thus for detachable connection of a lapel device 76 intended.

The pole contact section 36a is electric with the respective solar cell string 18a . 18b connected. In the embodiment of the 3 is the pole contact section 36a the first main junction box 26a with the first solar cell string 18a , the pole contact section 36a the second main junction box 26b with the first solar cell string 18b and the pole contact portion 36a the intermediate junction box 66 with the further solar cell string 18n electrically connected.

The pole connection section 32 has the pole contact portion 36a on, wherein the pole contact section 36a In particular, it may be embodied as an elongated rod having a first end portion in the pole terminal portion 32 protrudes (see 4 ).

The main junction boxes 26 continue to have a can by-pass connection 40 for connecting a bypass device 50 on. The can by-pass connection 40 is through a bypass connection section 42 of the junction box 28 and one electrically with the respective solar cell string 18a . 18b connected and to the bypass connection section 42 leading by-pass connection device 44 educated.

The bypass connection section 42 can, as in 4 shown by a recess of the junction box 28 be formed, so that designed as a connector connection section 54 a housing of a bypass device 50 in the recess is releasably inserted. Alternatively, it may be provided that the bypass connection section 42 as one on the junction box 28 formed and in particular of this projecting portion forming a plug is formed (not shown), so that a recess having a connecting portion of the bypass device (not shown) to the plug is releasably attachable. Generally, the bypass port section 42 thus releasably coupling a bypass device 50 to the main junction box 26 intended. In both cases defines a lateral surface of the plug or formed as a recess bypass connection section 42 a bypass port longitudinal direction L42 along which the bypass device 50 is infected.

• – ein erstes Kontaktstück 36 mit einem Pol-Kontaktabschnitt 36a und einem entgegengesetzt zu diesem gelegenen Bypass-Kontaktabschnitt 36b,
• – ein zweites Kontaktstück 38,
• – ein sich zwischen dem ersten Kontaktstück 36 und einem ersten Leiterband 22a erstreckendes erstes Kontaktband 36k,
• – ein sich zwischen dem zweiten Kontaktstück 38 und einem zweiten Leiterband 22b erstreckendes zweites Kontaktband 38k.

As in the 3 and 4 shown have the main junction boxes 26 one can connection device each 34 on. This indicates:

• - A first contact piece 36 with a pole contact section 36a and a bypass contact portion opposite thereto 36b .
• - a second contact piece 38 .
• - a between the first contact piece 36 and a first ladder tape 22a extending first contact band 36k .
• - A between the second contact piece 38 and a second conductor band 22b extending second contact band 38k ,

Between the first and second conductor strip 22a . 22b are the solar cells 22 each one of the solar cell strings 18a . 18b or 18n electrically connected in series. A first ladder tape 22a another solar cell string 18n For this purpose, it is electrically connected to a second conductor strip 22b of the first solar cell string 18a or an additional additional solar cell string 18n connected. A second ladder tape 22b another solar cell string 18n is electrically connected to a first conductor strip 22a of the second solar cell string 18b or an additional additional solar cell string 18n connected. At the in 1 shown variant of the solar module system 10 is the second ladder tape 22b of the first solar cell string 18a with the first conductor band 22a of the second solar cell string 18b connected.

The bypass contact section 36b and the second contact piece 38 together form the bypass connection device 44 ,

The solar module system 10 further shows the bypass devices 50 on. The bypass devices 50 each have a bypass diode or diode-less bypass circuit 56 on that with a contact device 58 electrically connected. Next, the bypass devices 50 a bypass diode or diodeless bypass circuit 56 and a contact device 58 surrounding bypass housing 52 with a contact device 58 having connecting section 54 on top of the can by-pass connector 40 is detachably connected, so that the bypass diode or diode-less bypass circuit 56 electrically antiparallel to the respective solar cell string 18a . 18b is switched.

In the 3 and 4 are a clearer explanation of the solar module system 10 the bypass devices 50 in one not to the main or intermediate junction boxes 26 respectively. 66 infected state shown. A representation of the infected state that is required for the operation of the solar module system is in 5 for a variant of the junction box shown in which the bypass connection section 42 is designed as a recess.

The connection section 54 of the bypass housing 52 can, as in the 3 and 4 shown to be designed as a plug. The bypass devices 50 can then with the connection section 54 to the can by-pass connection 40 be releasably infected. In particular, the plug can in a designed as a recess bypass connection section 42 of the junction box 28 be plugged in. The connection section 54 of the bypass housing 52 can as a recess of the bypass housing 52 be executed (not shown). The bypass device can then be connected to a bypass connection section designed as a plug 42 of the junction box 28 be infected (not shown).

The contact device 58 is for electrical contacting of the bypass diode or diodeless bypass circuit 56 with the bypass connection device 44 the main junction box 26 or the intermediate junction box 66 intended. The contact device 58 may be formed by two elongated rods, one at least partially in the connection portion 54 Having a first end portion located opposite to the first end portion and the second end portion, wherein at the second end portions depending on a connector of the bypass diode (cathode and anode) or diodeless bypass circuit 56 electrically contacted. The contact device 58 In addition, two may be attached to the second end portion of the elongate bars of the contactor 58 have subsequent elongated contact plates, to which the connecting pieces of the bypass diode or diode-less bypass circuit 56 are contacted.

As a bypass diode 56 Preferably, exactly one diode or bypass circuit or diode-less bypass circuit is provided, for example a diode with a housing of the type TO-220 or a housing of the type DPAK or D2PAK. However, it can also be provided that, for example, two or more in series or in antiparallel connected diodes are provided. General is ever solar cell string 18a . 18b . 18n one bypass device each 50 provided that a diode 56 or a diode circuit or diodeless bypass circuit which is in anti-parallel to the respective solar cell string 18a . 18b . 18n is switched.

The aforementioned embodiment of the bypass device 50 has the advantage that in case of shading of one or more solar cell strings 18a . 18b . 18n the bypass device 50 , Which the to each shaded solar cell string 18a . 18b . 18n antiparallel connected diode or diode circuit or diodeless bypass circuit 56 only those at the respective diode or the diode circuit or diodeless bypass circuit 56 declining power loss is supplied. Because every bypass housing 52 just a diode or diode circuit or diodeless bypass circuit 56 may include the diodes or diode circuits or diodeless bypass circuit 56 different solar cell strings 18a . 18b . 18n do not heat each other. Furthermore, the available cooling surface per diode or diode-less bypass circuit 56 very large, what the heat dissipation from the diode or the diodeless bypass circuit 56 Lightened away. This will increase the performance and life of the diodes 56 or other electronic components of the diode-less bypass circuit 56 improves and the reliability of the solar module system 10 increased overall.

At the in 3 shown variant of the solar module system 10 this shows another solar cell string 18n on that between the first and the second solar cell string 18a . 18b is electrically connected in series with these. As already stated above, several more solar cell strings can also be used 18n be provided. Every other solar cell string 18n is in each case an intermediate junction box 66 assigned, that is, it has an electrical with the respective other solar cell string 18n connected can connection device 34 on.

The intermediate junction boxes 66 can be the features of the main junction boxes described above 26 and in particular may also be constructed identically to these. This has the advantage that for a solar module system 10 only a single type of junction box can be used. This facilitates the installation of the solar module system 10 because the connection boxes can not be confused. Also, the production cost is low, because the manufacturing devices only need to be set to a type of junction box.

The intermediate junction box 66 in particular, as in 4 be shown: the intermediate junction box 66 therefore has a junction box housing 28 with a plate-shaped attachment portion formed thereon 28a for fixing the junction box 28 on the solar module 12 on. Furthermore, the intermediate junction box 66 a can-pole connection 30 on, at least by a pole connection section 32 of the junction box 28 is trained.

The pole connection section 32 can, as already for the main junction box 26 described, as a recess of the junction box 28 or alternatively be designed as a plug.

Also, the intermediate junction box 66 also one to the pole connection section 32 also one to the pole connection section 32 leading pole contact section 36a as already for the main junction box 26 described. 3 shows such an embodiment.

To the socket pole connection 30 the respective intermediate junction box 66 can each have a closure device 68 be infected. The closure device 68 can, for example, as in 3 shown to be designed as a plug. Alternatively, the closure device can also be designed as a cap which has a pole connection section designed as a plug 32 slipped or infected.

The intermediate junction box 66 also has a canned bypass port 40 for connecting a bypass device 50 on. The can by-pass connection 40 is through a bypass connection section 42 of the junction box 28 and one electrically with the respective solar cell string 18a . 18b connected and to the bypass connection section 42 leading by-pass connection device 44 educated.

The bypass connection section 42 can, as already for the main junction box 26 described, as a recess of the junction box 28 or be designed as a plug.

To the can by-pass connection 40 the respective intermediate junction box 66 is in each case the connection section 54 a bypass housing 52 a respective further bypass device 50 releasably plugged so that the bypass diode or diodeless bypass circuit 56 electrically antiparallel to the respective solar cell string 18n is switched. The bypass device 50 is constructed as described above.

Alternatively or in addition to an intermediate junction box 166 With the above-described construction, the solar module system 10 also an intermediate junction box 166 have, as in 6 is shown constructed. This intermediate junction box 166 is associated with one of the respective further solar cell strings, that is, it has an electrical with the respective other solar cell string 18n connected can connection device 34 on.

The intermediate junction box 166 has a junction box housing 128 with one this trained plate-shaped attachment portion 128a for fixing the junction box 28 on the solar module 12 , The attachment section 128a can in particular in one piece, ie in material unit, with the junction box housing 128 be educated. Alternatively, the attachment portion 128a also with the junction box housing 128 , For example, be connected by an adhesive connection.

The intermediate junction box 166 further has a canned bypass port 140 for connecting a bypass device 50 on, with the can-bypass connection 140 through a bypass connection section 142 of the junction box 128 and one electrically with the respective solar cell string 18n connected and to the bypass connection section 142 leading by-pass connection device 144 is trained.

The bypass connection section 142 can, as in 6 shown by a recess of the junction box 128 be formed, so that designed as a connector connection section 154 a housing of a bypass device 50 in the recess is releasably inserted. Alternatively, it may be provided that the bypass connection section 142 as one on the junction box 28 formed and in particular of this projecting portion forming a plug is formed (not shown), so that a recess having a connecting portion of the bypass device (not shown) to the plug is releasably attachable. Generally, the bypass connection section 142 thus releasably coupling a bypass device 50 to the intermediate junction box 166 intended. In both cases, in each case defines a lateral surface of the formed as a plug or as a recess bypass connection portion 42 a bypass port longitudinal direction L142 along which the bypass device 50 is infected.

• – ein erstes Kontaktstück 136 mit einem Bypass-Anschlussabschnitt 136b,
• – ein zweites Kontaktstück 138,
• – ein sich zwischen dem ersten Kontaktstück 136 und einem ersten Leiterband 22a erstreckendes erstes Kontaktband 136k,
• – ein sich zwischen dem zweiten Kontaktstück 138 und einem zweiten Leiterband 22b erstreckendes zweites Kontaktband 138k.

As in 6 shown have the intermediate junction boxes 166 one can connection device each 134 on. This indicates:

• - A first contact piece 136 with a bypass connection section 136b .
• - a second contact piece 138 .
• - a between the first contact piece 136 and a first ladder tape 22a extending first contact band 136k .
• - A between the second contact piece 138 and a second conductor band 22b extending second contact band 138k ,

The bypass connection section 136b and the second contact piece 138 together form the bypass connection device 144 ,

To the can by-pass connection 140 is the connection section 54 a respective bypass housing 52 releasably plugged so that the bypass diode or diodeless bypass circuit 56 electrically antiparallel to the respective solar cell string 18n is switched.

According to a second embodiment of the solar module system has a solar module system 210 , as in 7 shown a solar module 12 with a solar cell string 18 on. The solar cell string 18 is by a variety of electrically connected in series solar cells 22 educated.

As 7 shows, points the solar module system 210 a solar cell string 18 assigned main junction box 226 on. "Assigned" in this context, as in the first embodiment also means that the main junction box 226 one electrically with the solar cell string 18 connected can connection device 234 having.

The main junction box 226 has a junction box housing 228 with a plate-shaped attachment portion formed thereon 228a for fixing the junction box 228 on the solar module 12 on. The attachment section 228a can in particular in one piece, ie in material unit, with the junction box housing 228 be educated. Alternatively, the attachment portion 228a also be connected to the housing, for example by an adhesive connection.

As 7 shows, points the main junction box 226 continue a first socket pole connection 230a and a second can terminal 230b each for tapping one of the solar cells 22 generated voltage. The first and a second can-pole connection 230a . 230b are each through a pole connection section 232a respectively. 232b of the junction box 228 and one electrically connected to the solar cell string 18 connected and to the first and the second pole terminal section 232a respectively. 232b leading pole contact section 236a respectively. 238a educated.

The first and the second pole connection section 232a and 232b can, as in 7 shown, each through a recess of the junction box 228 be formed, so that formed as a plug end portion of a conduit device 82 in the recess is releasably inserted. Alternatively, it may be provided that the first and the second pole connection section 232a and 232b each as one on the junction box housing 228 trained and in particular projecting from this projecting portion forming a plug is formed (not shown), so that a Recess end portion of a conduit device 82 releasably attachable to the plug.

In general, first and second pole connection sections 232a and 232b thus formed for releasably coupling a Ansteckvorrichtung, the Ansteckvorrichtung 76 a conduit device 82 or a closure device 68 can be.

It is also conceivable that, for example, the first pole connection section 232a as a recess and the second pole connection section 232b is designed as a plug or vice versa.

In each case, a lateral surface of the first or second pole connection section formed as a plug or a recess is defined in each case 232a respectively. 232b a first and second pole terminal longitudinal direction L232a and L232b, along which the attachment device 76 is infected.

The first can-pole connection 230a and the second can terminal 230b is thus in each case for releasably connecting a lapel device 76 intended.

The first pole contact section 236a is electric with the solar cell string 18 connected, in particular by means of a first conductor strip 22a , The first pole connection section 232a has the first pole contact portion 236a on, wherein the first pole contact section 236a In particular, it may be embodied as an elongated rod having a first end portion in the first pole terminal portion 232a protrudes.

The second pole contact section 236b is electric with the solar cell string 18 connected, in particular by means of a second conductor strip 22b , The second pole connection section 232b has the second pole contact portion 238a on, wherein the second pole contact section 238a In particular, it may be embodied as an elongated rod having a first end portion in the second pole terminal portion 232b protrudes.

The main junction box further has a can by-pass port 240 for connecting a bypass device 50 on. The can by-pass connection 240 is through a bypass connection section 242 of the junction box 228 and one electrically with the solar cell string 18 connected and to the bypass connection section 242 leading by-pass connection device 244 educated.

The bypass connection section 242 can, as in 7 shown by a recess of the junction box 228 be formed, so that designed as a connector connection section 54 a housing of a bypass device 50 in the recess is releasably inserted. Alternatively, it may be provided that the bypass connection section 242 as one on the junction box 228 trained and in particular protruding from this section forming a plug is formed (not shown), so that a recess having a connecting portion of the bypass device (not shown) to the plug is releasably attachable. Generally, the bypass connection section 242 thus releasably coupling a bypass device 50 to the main junction box 226 intended. In both cases, in each case defines a lateral surface of the bypass connection section depicted as a plug or as a recess 242 a bypass port longitudinal direction L242 along which the bypass device 50 is infected.

• – ein erstes Kontaktstück 236 mit dem ersten Pol-Kontaktabschnitt 236a und einem entgegengesetzt zu diesem gelegenen Bypass-Kontaktabschnitt 236b,
• – ein zweites Kontaktstück 238,
• – ein sich zwischen dem ersten Kontaktstück 236 und dem ersten Leiterband 22a erstreckendes erstes Kontaktband 236k,
• – ein sich zwischen dem zweiten Kontaktstück 238 und dem zweiten Leiterband 22b erstreckendes zweites Kontaktband 238k, und
• – den elektrisch mit dem zweiten Kontaktband 238k verbundenen zweiten Pol-Kontaktabschnitt 238a.

Like in the 7 shown has the main junction boxes 226 a can connector 234 on. This indicates:

• - A first contact piece 236 with the first pole contact portion 236a and a bypass contact portion opposite thereto 236b .
• - a second contact piece 238 .
• - a between the first contact piece 236 and the first ladder tape 22a extending first contact band 236k .
• - A between the second contact piece 238 and the second conductor band 22b extending second contact band 238k , and
• - The electrically with the second contact band 238k connected second pole contact portion 238a ,

Between a first and a second conductor strip 22a . 22b are the solar cells 22 of the solar cell string 18 electrically connected in series.

The bypass contact section 236b and the second contact piece 238 together form the bypass connection device 244 ,

The solar module system 210 further indicates the bypass device 50 on. The bypass devices 50 has a bypass diode or diodeless bypass circuit 56 on that with a contact device 58 electrically connected. Next, the bypass device 50 a bypass diode or diodeless bypass circuit 56 and a contact device 58 surrounding bypass housing 52 with a contact device 58 having connecting section 54 on top of the can by-pass connector 40 is detachably connected, so that the bypass diode or diode-less bypass circuit 56 electrically antiparallel to the respective solar cell string 18a . 18b is switched.

The bypass device 50 Incidentally, as for the first embodiment of the solar module system 10 described executed.

In 7 is a more vivid explanation of the solar module system 210 the bypass device 50 a not to the main junction box 226 infected state shown. During operation of the solar module system 210 is the bypass device 50 to the main junction box 226 infected, eg in the in 5 shown manner when connected to the junction box 228 the bypass connection section 242 is designed as a recess.

In the solar module system 210 According to the second embodiment, there is the advantage that several such solar module systems 210 thereby electrically connected in series with each other, that a second pole contact portion 238a a solar module system 210 electrically with a first pole contact portion 236a another solar module system 210 can be connected. This is due to the realization of the first and second can pole terminals 230a . 230b with a first and a second pole connection section 232a respectively. 232b in a particularly simple manner possible because electrical line device 82 with corresponding end portions detachably in the first and in a second pole connection section 232a respectively. 232b is pluggable. In this way, depending on the application, any expandable solar generators system can be created, which consists of an adapted to the needs of number of solar module systems 230 is formed.

The provision of a bypass device configured as described above 50 on the solar module system 210 has the advantage that in case of shading of the solar cell string 18 the bypass device 50 which leads to the shaded solar cell string 18 antiparallel connected diode or diode circuit or diodeless bypass circuit 56 only those at the respective diode or the diode circuit or diodeless bypass circuit 56 declining power loss is supplied. This is particularly advantageous if, as described above, several solar module systems 210 are interconnected to a solar generator system. Because every bypass housing 52 just a diode or diode circuit or diodeless bypass circuit 56 may include the diodes or diode circuits or diodeless bypass circuit 56 different solar cell strings 18a . 18b . 18n do not heat each other. Furthermore, the available cooling surface per diode 56 very large, what the heat dissipation from the diode or from the diodeless bypass circuit 56 Lightened away. This will increase the performance and life of the diodes or the diodeless bypass circuit 56 improves and the reliability of the solar module system 210 increased overall.

According to a third embodiment of the solar module system has a solar module system 310 , as in 11 shown a solar module 12 with a solar cell string 18 on. The solar cell string 18 is by a variety of electrically connected in series solar cells 22 educated.

As in 11 shown points the solar module system 310 two main junction boxes 26 , in particular a first and a second main junction box 26a . 26b on. The first and the second main junction box 26a and 26b are basically designed with the same features as the main junction boxes 26 of the solar module system 10 according to the first embodiment. In the following, only the differences are discussed.

As in 11 shown is the pole contact section 36a the first main junction box 26a electrically with the solar cell string 18 connected, in particular with a first conductor strip 22a , Furthermore, the pole contact portion 36a the second main junction box 26b electrically with the solar cell string 18 connected, in particular by means of a second conductor strip 22b , The solar cells 22 are between the first and the second conductor strip 22a . 22b connected in series.

Similar to the second embodiment, in the third embodiment of the solar module system 310 the second contact piece 38 the can connection device 34 the first main junction box 26a electrically with the second conductor strip 22b connected.

In contrast to the first embodiment, in the third embodiment of the solar module system 310 the second contact piece 38 the can connection device 34 the second main junction box 26a not with the second conductor band 22b electrically connected. In particular, the second contact band is the can connection device 34 the second main junction box 26b made shorter than in the first embodiment, so that this no electrical connection between the second conductor strip 22b and the second contact piece 38 manufactures.

To the can by-pass connection 40 the first main junction box 26a is a bypass device as already described above 50 infected. The bypass diode or diodeless bypass circuit 56 is thus electrically antiparallel to the solar cell string 18 connected.

To the can by-pass connection 40 the second main junction box 26b can, as in 11 shown a lapel device 68 be infected. The attachment device 68 can, as in 11 shown by a bypass blind device 350 be formed. The bypass blind device 350 has a bypass housing 352 with a connection section 354 on top of the can by-pass connector 40 is releasably attachable.

The bypass blind device 350 may have the same features as a bypass device described above 50 , wherein in the bypass dummy device 350 prefers no bypass diode or diodeless bypass circuit 56 is provided. In particular, the connection section 354 of the bypass housing 352 have the same features as the terminal section 54 of the bypass housing described above 52 , Also, the connection section 354 of the bypass housing 352 the contact device 58 exhibit.

In the 11 are a clearer explanation of the solar module system 310 the bypass device 50 and the by-pass device is not connected to the main 26 shown infected. During operation of the solar module system 310 is the bypass device 50 to the first main junction box 26a infected (the optionally provided bypass blind device 350 is to the second main junction box 26b infected), eg in the in 5 shown manner when connected to the junction box 28 the bypass connection section 42 is designed as a recess.

In the solar module system 310 According to the third embodiment, there is the advantage that several such solar module systems 310 thereby electrically connected in series with each other, that the pole contact portion 36a the second main junction box 26b a solar module system 310 electrically with a pole contact section 36a a first main junction box 26a another solar module system 310 is connected. This results in the advantages mentioned in relation to the second embodiment in an analogous manner.

In all embodiments of the solar module system 10 . 210 . 310 can the solar module 12 at least one area extending support plate 14 or a likewise extending cover plate 16 in particular, the solar module 12 the cover plate 16 and the carrier plate 14 exhibit. It can be provided that the solar cells 22 with respect to a thickness direction D12 of the solar module 12 between the cover plate 14 and the carrier plate 14 are arranged. It may further be provided that with respect to the thickness direction D12 of the solar module 12 between the cover plate 14 and the carrier plate 14 a connecting layer (not shown) of a preferably transparent plastic is provided, which is the solar cells 22 at least partially surrounds and the support plate 14 flat with the cover plate 16 combines.

Furthermore, in all embodiments of the solar module system 10 . 210 be provided that the plate-shaped attachment portion 28a . 128a . 228a of the junction box 28 . 128 . 228 between the carrier plate 14 and the cover plate 16 is located.

In this context, "between" means that the attachment portion 28a . 128a . 228a with respect to the thickness direction D12 between the carrier plate 14 and the cover plate 16 is located.

Preferably, the entire attachment portion 28a . 128a . 228a between the carrier plate 14 and the cover plate 16 located, that is, an edge portion of the attachment portion 28a . 128a . 228a preferably not laterally over an edge of the solar module with respect to a longitudinal direction L12 12 survives.

As in the 3 to 8th shown, the attachment portion 28a . 128a . 228a have a plurality of through holes d28, d128, d228. This applies regardless of the embodiment of the solar module system 10 . 210 . 310 , The optional in thickness direction D12 between support plate 14 and the cover plate 16 provided plastic compound layer (not shown) can penetrate these through holes d28, d128, d228 in an introduction in the liquid or pasty state and thus provides a positive connection of the attachment portion 28a . 128a . 228a with the solar module 12 for sure.

In all embodiments of the solar module system 10 . 210 can the connection section 54 of the bypass housing 50 a complementary to the bypass connection section 42 . 142 . 242 of the junction box 28 . 128 . 228 have executed cross-section. In this case, in particular has a lateral surface 54a of the connection section 54 of the bypass housing 50 a surface structure that is complementary to a surface structure of the bypass port portion 42 . 142 . 242 of the junction box 28 . 128 . 228 is executed.

In complementary to each other running cross sections of the connection section 54 of the bypass housing 50 and the bypass connection section 42 . 142 . 242 of the junction box 28 . 128 . 228 can be provided that the connection section 54 of the bypass housing 50 a groove 70 and the bypass connection section 42 . 142 . 242 a complementary to the groove 70 shaped bridge 72 having.

This is eg in the 4 . 8th and 9 shown. How best in 4 recognizable, the groove extends 70 in a longitudinal direction L54 along a lateral surface 54a of the connection section 54 , The lateral surface 54a defined in the longitudinal direction L54 seen the cross section of the connection portion 54 , The groove 70 As shown in the figures, as seen in or opposite to the longitudinal direction L54 may have a rectangular cross-section. Alternatively, the groove 70 eg also have a U, V or W-shaped cross-section.

How best in 9 recognizable, the bypass connection section points 42 . 142 . 242 of the junction box 28 . 128 . 228 a footbridge 72 on, one complementary to the groove 70 having shaped cross-section.

The 4 and 9 show these features for a connector designed as a connector section 54 the bypass device 50 and a bypass port portion configured as a recess 42 . 142 . 242 of the junction box 28 . 128 . 228 , The groove 70 However, it can also be used as a recess of the bypass housing 52 executed connection section 54 the bypass device 50 and the bridge on a bypass connection section designed as a plug 42 . 142 . 242 of the junction box 28 . 128 . 228 be provided. It can also be provided that the groove 70 at the bypass connection section 42 . 142 . 242 of the junction box 28 . 128 . 228 and the jetty 72 at the connection section 54 the bypass device 50 is trained.

By providing a groove 70 or a bridge 72 at the bypass connection section 42 . 142 . 242 of the junction box 28 . 128 . 228 and the corresponding complementary component (groove 70 or footbridge 72 ) at the connection section 54 the bypass device 50 This ensures that the bypass device can only be detachably connected to the junction box housing 28 . 128 . 228 is infectious when the bridge 72 in the groove 70 can intervene. This ensures a polarity-proof connection. That is, the diode or diodeless bypass circuit 56 becomes with its poles (anode, cathode) so with a respective solar cell string 18 . 18a . 18b . 18n connected to be connected in anti-parallel to this and that the diode or diodeless bypass circuit 56 is switched in the event of shading in the forward direction.

As in 10 can also be shown the pole connection section 32 the main junction boxes 26 at least one ridge extending along the pole connection longitudinal direction L32 86a . 86b exhibit. 10 shows a main junction box 26 with a pole connection section 32 , the first footbridge 86a and a second jetty 86b having, wherein the first and the second web 86a . 86b extend respectively along the pole terminal longitudinal direction L32 and at opposite portions of the lateral surface of the pole terminal portion 32 forming recess of the junction box 28 are located. If the pole connection section 32 is designed as a plug, the webs 86a . 86b on opposite portions of the lateral surface of the pole terminal portion 32 be located forming plug.

10 Although shows a main junction box 28 a solar module system 10 according to the first embodiment. However, the first and second terminal portions may be 232a . 232b a main junction box 228 a solar module system 210 according to the second embodiment also corresponding webs 82a . 82b exhibit. Furthermore, it can be provided that a pole connection section 32 . 232a . 232b at which a positive polarity of the solar cells 22 generated voltage is tapped, webs having a first cross-sectional shape, for example rectangular, and a Polanschluss section 32 . 232a . 232b at which a negative polarity of the solar cells 22 generated voltage is tapped, webs having a second of the first different cross-sectional shape, for example, V-shaped. This ensures that a consumer's contacts always match their polarity to the solar panel system 10 . 210 be connected. The can-pole connection 30 . 230 is thus reverse polarity protected.

As in the 3 to 10 may be provided in all embodiments that the junction box housing 28 . 128 . 228 at least one locking device 74 having. Such a locking device 74 Both the main junction boxes 26 as well as the intermediate junction boxes 66 . 166 exhibit. The locking device 74 serves to mechanically secure the bypass device 50 or a clip-on device 76 in one to the junction box 28 . 128 . 228 infected condition.

The junction box housing 28 . 128 . 228 the main junction box 26 . 226 or the intermediate junction box 66 . 166 can be used as a locking device 74 for example, as in the 3 to 6 and 8th to 10 shown a latch 78 exhibit. The latch bracket 78 Can be made in one piece, ie in material unit, with the junction box housing 28 . 128 . 228 be formed or connected to this, for example by an adhesive or welded joint.

Like in 5 shown, the locking bracket 78 one on the junction box 28 . 128 . 228 located and in particular associated with this base section 78b and one opposite to the base portion 78b located resting section 78a on. The resting section 78a and the base section 78b are by a longitudinal direction L78 of the latching clip 78 defining intermediate section 78c connected with each other. The resting section 78a stands with an extension transverse to the longitudinal direction L78 of the intermediate portion 78c from. The latch bracket 78 stands from the junction box 28 . 128 . 228 such that the longitudinal direction L78 of the detent clip 78 along the pole terminal longitudinal direction L32, L232a, L232b of the respective pole terminal portion 32 . 232a . 232b or the bypass port longitudinal direction L42, L142, L242 of the respective bypass port portion 42 . 142 . 242 runs.

Also, a locking device 74 , such as in 7 shown, be formed by the pole terminal section 32 . 232a . 232b or the bypass connection section 42 . 142 . 242 of the junction box 28 . 128 . 228 the main junction box 26 . 226 or the intermediate junction box 66 . 166 and the connection section 54 of the bypass housing 52 form a press fit. In this case, in particular, a connector section designed as a plug 54 a cross-sectional diameter having an inner diameter as a recess of the junction box housing 28 . 128 . 228 trained bypass connection section 42 . 142 . 242 forms a press fit.

Furthermore, it can be provided in all embodiments that the bypass housing 52 a locking groove 80 has, as in 4 shown. If a locking device 74 in the form of a latching clip constructed as described above 78 at the junction box 26 . 66 . 166 . 226 is provided, the locking groove 80 the resting section 78a of the detent clip 78 take up. In particular, the latching section locks 78a in the locking groove 80 one. This will make the bypass device 50 in which to the junction box 28 . 128 . 228 infected state mechanically secured.

Furthermore, in all embodiments, at the connection portion 54 of the bypass housing 52 a ring seal 82 be arranged. As in 4 shown is the ring seal 84 preferably with respect to the longitudinal direction L54 of the connection section 54 near a base section 53 of the bypass housing 52 arranged. Through the ring seal 82 Ensures that when the bypass device 50 to the junction box housing 28 . 128 . 228 infected, no moisture can penetrate into the interior of the can.

8th shows a variant of a junction box 28 a main junction box 26 , However, this design of the housing can also for the junction box housing one of the variants of the intermediate junction boxes 66 . 166 or the main junction box 226 be provided.

As in 8th shown, the junction box housing 28 along the course of the attachment portion 28a in a first junction box section 28b and a second junction box section 28c be shared. The first and second junction box section 28b . 28c can be constructed identically in particular. It can also be provided that the first junction box section 28b the locking bracket 78 as well as the jetty 72 while these components in the otherwise identically constructed second junction box section 28c absence. After mounting the can connector 34 become the junction box sections 28b . 28c connected with each other.

LIST OF REFERENCE NUMBERS

10, 210

 Solar panel system

12

 solar module

14

 support plate

16

 cover plate

18a

 first solar cell string

18b

 second solar cell string

18n

 more solar cell strings

18

 Solar cell string

22

 solar cells

26, 226

 Main junction box

26a

 first main junction box

26b

 second main junction box

28, 128, 228

 Junction box housing

28a, 128a, 228a

 attachment section

28b

 first junction box section

28c

 second junction box section

30

 Doses-pole connection

32

 Pole connection section

34, 134, 234

 Cans port device

36

 first contact piece

36a, 236a, 238a

 Pol-contact portion

36b

 Bypass contact section

36k

 first contact band

38

 second contact piece

38k

 second contact band

40, 140, 240

 Cans bypass connection

42, 142, 242

Bypass connection section

44, 244

 Bypass connection device

50

 Bypass device

52

 bypass housing

54

 connecting section

54a

 Lateral surface of the connection section

56

 Bypass diode or diode-less bypass circuit

58

 contact device

66, 166

 Between junction box

68

 closure device

70

 groove

72

 web

74

 locking device

76

 Ansteckvorrichtung

78

 latching clip

78a

 detent portion

78b

 base section

78c

 intermediate section

80

 locking groove

82

 conducting device

84

 ring seal

86a

 first jetty

86b

 second bridge

230a

 first socket pole connection

230b

 second socket pole connection

232a

 first pole connection section

232b

 second pole connection section

236k

 first contact band

238k

 second contact band

350

 Blind bypass device

352

 Bypass housing

354

 connecting section

L32

 Pole terminal longitudinal direction

L42, L142, L242

 Bypass connection longitudinal direction

L54

 Longitudinal direction of the connection section

L78

 Longitudinal direction of the locking bracket

d28, d128, d228

 Through holes of the connection section

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102011052928 A1 [0002]

Claims (15)

Solar module system ( 10 ), comprising: - a solar module ( 12 ) having at least a first and a second solar cell string ( 18a . 18b ), each by a plurality of electrically connected in series solar cells ( 22 ), wherein the solar cell strings ( 18a . 18b ) are electrically connected in series to each other, - a the first solar cell string ( 18a ) associated first main junction box ( 26 . 26a ) and a second solar cell string ( 18b ) associated second main junction box ( 26 . 26b ), the junction boxes ( 26 . 26a . 26b ) each comprise: - a junction box housing ( 28 ) with a plate-shaped attachment portion (FIG. 28a ) for fixing the junction box ( 28 ) on the solar module ( 12 ), - a can-pole connection ( 30 ) for picking up one of the solar cells ( 22 ) generated a Polanschluss section ( 32 ) of the junction box ( 28 ) for releasably connecting a line device ( 82 ) and one electrically connected to the respective solar cell string ( 18a . 18b ) and to the pole terminal section ( 32 ) leading pole contact section ( 36a ), - a can by-pass connection ( 40 ) for connecting a bypass device ( 50 ), wherein the can by-pass connection ( 40 ) a bypass connection section ( 42 ) of the junction box ( 28 ) and one electrically with the respective solar cell string ( 18a . 18b ) and to the bypass connection section ( 42 ) leading by-pass connection device ( 44 ), - the bypass devices ( 50 ), each comprising: - a bypass diode or diode-less bypass circuit ( 56 ) connected to a contact device ( 58 ) is electrically connected, - a bypass diode or diode-less bypass circuit ( 56 ) and the contact device ( 58 ) surrounding bypass housing ( 52 ) with a contact device ( 58 ) having connecting section ( 54 ) connected to the can by-pass connection ( 40 ) is detachably connected, so that the bypass diode or diode-less bypass circuit ( 56 ) electrically antiparallel to the respective solar cell string ( 18a . 18b ) is switched. Solar module system ( 10 ) according to claim 1, wherein - at least one further solar cell string ( 18n ) between the first and the second solar cell string ( 18a . 18b ) is electrically connected in series with these, - a respective further solar cell string ( 18n ) in each case an intermediate junction box ( 66 ), each comprising: - a junction box housing ( 28 ) with a plate-shaped attachment portion (FIG. 28a ) for fixing the junction box ( 28 ) on the solar module ( 12 ), - a can-pole connection ( 30 ), which at least by a pole terminal section ( 32 ) of the junction box ( 28 ), - a can by-pass connection ( 40 ) for connecting a bypass device ( 50 ), wherein the can by-pass connection ( 40 ) a bypass connection section ( 42 ) of the junction box ( 28 ) and one electrically with the respective solar cell string ( 18a . 18b ) and to the bypass connection section ( 42 ) leading by-pass connection device ( 44 ), - to the can by-pass connection ( 40 ) of the respective intermediate junction box ( 66 ) the connection section ( 54 ) of a bypass housing ( 52 ) of a respective further bypass device ( 50 ) is detachably connected, so that the bypass diode or diode-less bypass circuit ( 56 ) electrically antiparallel to the respective solar cell string ( 18n ) is switched. Solar module system ( 10 ) according to claim 2, wherein the can-Polanschluss ( 30 ) of the respective intermediate junction box each have a closure device ( 68 ) is infected. Solar module system ( 10 ) according to claim 1, wherein - at least one further solar cell string ( 18n ) between the first and the second solar cell string ( 18a . 18b ) is electrically connected in series with these, - a respective further solar cell string ( 18n ) in each case an intermediate junction box ( 166 ), each comprising: - a junction box housing ( 128 ) with a plate-shaped attachment portion (FIG. 128a ) for fixing the junction box ( 28 ) on the solar module ( 12 ), - a can by-pass connection ( 140 ) for connecting a bypass device ( 50 ), wherein the can by-pass connection ( 140 ) a bypass connection section ( 142 ) of the junction box ( 128 ) and one electrically with the respective solar cell string ( 18n ) and to the bypass connection section ( 142 ) leading by-pass connection device ( 144 ), wherein in each case to the can by-pass connection ( 140 ) the connection section ( 54 ) of a respective bypass housing ( 52 ) is detachably connected, so that the bypass diode or diode-less bypass circuit ( 56 ) electrically antiparallel to the respective solar cell string ( 18n ) is switched. Solar module system ( 210 ) comprising: - a solar module ( 12 ) with a solar cell string ( 18 ) by a plurality of electrically connected in series solar cells ( 22 ), - a main junction box ( 226 ), comprising: - a junction box housing ( 228 ) with a on the junction box housing ( 228 ) formed plate-shaped mounting portion ( 228a ) for fixing the junction box ( 228 ) on the solar module ( 12 ), - a first and a second can-Polanschluss ( 230a . 230b ) for picking up one of the solar cells ( 22 ), the first and second can terminals ( 230a . 230b ) each have a pole connection section ( 232a . 232b ) of the junction box ( 228 ) for connecting a respective line device ( 82 ) and one electrically connected to the solar cell string ( 18 ) and to the respective pole terminal section ( 232a . 232b ) leading pole contact section ( 236a . 238a ), - a can by-pass connection ( 240 ) for a bypass device ( 50 ), which has a bypass connection section ( 242 ) of the junction box ( 228 ) and one electrically connected to the solar cell string ( 18 ) and to the bypass connection section ( 242 ) leading by-pass connection device ( 244 ), - the bypass device ( 50 ), comprising: - a bypass diode or diode-less bypass circuit ( 56 ) connected to a contact device ( 58 ) is electrically connected, - a bypass diode or diode-less bypass circuit ( 56 ) and the contact device ( 58 ) surrounding bypass housing ( 52 ) with a contact device ( 58 ) having connecting section ( 54 ) connected to the can by-pass connection ( 240 ) is detachably connected, so that the bypass diode or diode-less bypass circuit ( 56 ) electrically antiparallel to the solar cell string ( 18 ) is switched. Solar module system ( 310 ) comprising: - a solar module ( 12 ) with a solar cell string ( 18 ) by a plurality of electrically connected in series solar cells ( 22 ), - a first and a second main junction box ( 26a . 26b ), each comprising: - a junction box housing ( 28 ) with a plate-shaped attachment portion (FIG. 28a ) for fixing the junction box ( 28 ) on the solar module ( 12 ), - a can-pole connection ( 30 ) for picking up one of the solar cells ( 22 ) generated a Polanschluss section ( 32 ) of the junction box ( 28 ) for releasably connecting a line device ( 82 ) and one electrically connected to the respective one of the solar cell strings ( 18a . 18b ) and to the pole terminal section ( 32 ) leading pole contact section ( 36a ), - a can by-pass connection ( 40 ) for connecting a bypass device ( 50 ), wherein the can by-pass connection ( 40 ) through a bypass connection section ( 42 ) of the junction box ( 28 ) and one electrically with the respective solar cell string ( 18a . 18b ) and to the bypass connection section ( 42 ) leading by-pass connection device ( 44 ), - the bypass device ( 50 ), comprising: - a bypass diode or diode-less bypass circuit ( 56 ) connected to a contact device ( 58 ) is electrically connected, - a bypass diode or diode-less bypass circuit ( 56 ) and the contact device ( 58 ) surrounding bypass housing ( 52 ) with a contact device ( 58 ) having connecting section ( 54 ) connected to the can by-pass connection ( 240 ) is detachably connected, so that the bypass diode or diode-less bypass circuit ( 56 ) electrically antiparallel to the solar cell string ( 18 ) is switched. Solar module system ( 10 ) according to one of the preceding claims, wherein the solar module ( 12 ) a carrier plate ( 14 ) and a cover plate ( 16 ), between which the solar cells ( 22 ) are arranged. Solar module system ( 10 ) according to claim 7, wherein the plate-shaped attachment portion ( 28a . 128a . 228a ) of the junction box ( 28 . 128 . 228 ) between the carrier plate ( 14 ) and the cover plate ( 16 ) is located. Solar module system ( 10 ) according to one of the preceding claims, wherein the bypass connection section ( 42 ; 142 ; 242 ) as a recess of the junction box housing ( 28 . 128 . 228 ), and the connection section ( 54 ) of the bypass housing ( 52 ) is designed as a plug. Solar module system ( 10 ) according to one of claims 1 to 8, wherein the bypass connection section ( 42 ; 142 ; 242 ) than at the junction box housing ( 28 . 128 . 228 ) formed connector and the connection section ( 54 ) of the bypass housing ( 52 ) as a recess of the bypass housing ( 52 ) is executed. Solar module system ( 10 ) according to one of the preceding claims, wherein the connection section ( 54 ) of the bypass housing ( 50 ) a complementary to the bypass connection section ( 42 . 142 . 242 ) of the junction box ( 28 . 128 . 228 ) has executed cross-section. Solar module system ( 10 ) according to claim 11, wherein the connection section ( 54 ) of the bypass housing ( 50 ) a groove ( 70 ), which extend in a longitudinal direction (L54) along a lateral surface defining the cross-section (L54) ( 54a ) of the connection section ( 54 ), and the bypass port section (FIG. 42 . 142 . 242 ) a complementary to the groove shaped web ( 72 ), so that the bypass Contraption ( 50 ) Reverse polarity reversible to the junction box housing ( 28 . 128 . 228 ) is attachable. Solar module system ( 10 ) according to one of the preceding claims, wherein at least one of the housings ( 28 . 128 . 228 ) of the main junction boxes ( 26 . 26a . 26b ) or the intermediate junction boxes ( 66 . 166 ) at least one locking device ( 74 ) for mechanically securing the bypass device ( 50 ) or a plug-in device ( 76 ) in one to the junction box housing ( 28 . 128 . 228 ) has infected state. Solar module system ( 10 ) according to claim 13, wherein the locking device ( 74 ) is formed in one of the following alternative ways: (a) on the junction box housing ( 28 . 128 . 228 ) of the main junction box ( 26 . 226 ) or the intermediate junction box ( 66 . 166 ) is a latching clip ( 78 ), wherein the bypass housing ( 52 ) a locking groove ( 80 ) for receiving a latching section ( 78a ) a latch ( 78 ) or (b) the pole-connection section (FIG. 32 . 232a . 232b ) or the bypass connection section ( 42 . 142 . 242 ) of the junction box ( 28 . 128 . 228 ) of the main junction box ( 26 . 226 ) or the intermediate junction box ( 66 . 166 ) and the connection section ( 54 ) of the bypass housing ( 52 ) form a press fit. Solar module system ( 10 ) according to one of the preceding claims, wherein at the connecting portion ( 54 ) of the bypass housing ( 52 ) a ring seal ( 84 ) is arranged.

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