DE102017116862A1 - sliding element - Google Patents

Abstract

The invention relates to a sliding element arrangement and a sliding element for displacement along an opening on a building or the like. For this purpose, the sliding element is mounted linearly adjustable in a guide rail. The sliding element has a photovoltaic module. It is provided that at least one bypass diode is arranged in a receiving region of a frame of the photovoltaic module or in a recess or a breakthrough a rear glass of the photovoltaic module. Furthermore, it is provided that at least one busbar is fixedly arranged on the guide rail and that the current of the moving photovoltaic module is passed via an electrically conductive, sliding or an electrically conductive, rolling contact with the at least one busbar. The sliding arrangement and the sliding element allow a easy adjustment of the sliding element, wherein the sliding element can be passed close to adjacent components.

Description

The invention relates to a sliding element for moving along an opening on a building or the like, wherein the sliding element has at least one designed as a double-glass module photovoltaic module with a front glass and a backside glass and the edges of the front glass and the back glass at least partially encompassing frame, wherein the Edges of the front glass and the back glass are at least partially disposed in a receiving area of the frame, wherein the sliding element is designed to cover depending on its sliding position, the opening by the at least one photovoltaic module at least partially or release, the sliding element on at least one guide rail transverse to the opening is slidably mounted, wherein the at least one photovoltaic module has at least one or more solar cells for converting solar energy into electrical energy, and wherein at least one bypass diode i n reverse direction is connected in parallel to one or more series-connected solar cells.

The invention further relates to a sliding element arrangement with a sliding element for displacement along an opening on a building or the like, wherein the sliding element has at least one photovoltaic module designed as a double-glass module with a front glass and a rear glass and / or wherein the sliding element at least one as foil backs Module has executed photovoltaic module with a front glass and a backsheet, wherein the sliding element as a function of its sliding position, the opening by the at least one photovoltaic module at least partially covers or releases, wherein the sliding element is slidably mounted on at least one guide rail transversely to the opening, wherein the at least one photovoltaic module has at least one or more solar cells for converting solar energy into electrical energy.

Photovoltaic modules are used for solar power generation. Here, solar cells are under a transparent front cover, in particular a front glass, arranged and interconnected. The back of the photovoltaic modules may be formed by an electrically insulating backsheet or by a backside glass. Between the glasses or the front glass and the backsheet an embedding material is provided, in which the solar cells are held. The connections of the solar cells, which are preferably connected in series with each other, are mostly led out of the back of the photovoltaic module. For this purpose, the backsheet or the backside glass has a corresponding breakthrough. In the area of the breakthrough, a junction box is placed in which the connections are connected to outgoing connection cables. In the junction box usually bypass diodes are arranged. These are connected in the reverse direction parallel to a predetermined number of series connected solar cells. In the event of a defect in a solar cell or in the event of shading of one or more solar cells, the current generated by the remaining solar cells can be conducted past the associated bypass diode in series with the defective or shaded solar cell. As a result, hotspot formation can be avoided and the highest possible energy yield can be maintained.

There are window sliding shutters known that can be installed instead of folding shutters on buildings. These window sliding shutters can be designed as photovoltaic modules. The window sliding shutters can be guided in mounted on the building facade guide rails. The disadvantage here affect the rear-mounted junction boxes, since they require a predetermined distance of the window sliding load from the facade. Furthermore, the outgoing photovoltaic cables obstruct the shifting of the window sliding shutters.

From the DE 100 28 433 A1 is a photovoltaic solar shutter with hexagonal solar cells known. The designed as a photovoltaic modules shop parts are connected by pivoting lever with the house wall. The pivoting lever designed in the form of a parallelogram enable pivoting of the photovoltaic module in front of a window opening.

From the DE 10 2013 109 391 A1 is a slatted roof with slats known. The slats can be rotated about a rotation axis between a closed and an open rotational position. In their closed position, the lamellas overlap, so that a closed roof surface is formed. In its open position, the roof surface between the slats is open, allowing sunlight to enter the space below. The fins are designed to accommodate solar cells or solar panels for converting solar energy into electrical or thermal energy. The solar cells can be combined by a lamination process with a transparent cover to form a photovoltaic module. The photovoltaic module can be glued according to a variant on the top of a formed as a hollow chamber profile body of the lamella. Such slatted roofs can be provided, for example, as terrace cover, as cover for a carport or for a garage and the like. there It would be desirable to cover also side walls, windows or doors by appropriate photovoltaic systems.

It is an object of the invention to provide a sliding element for solar power generation, which is suitable and versatile for the temporary covering of openings in buildings or the like.

It is a further object of the invention to provide a corresponding sliding element arrangement with such a sliding element.

The object of the invention relating to the sliding element is achieved in that the at least one bypass diode is arranged in the receiving region of the frame. Thus, there is no need to provide a separate junction box for receiving the bypass diodes on the back of the photovoltaic module used. As a result, the sliding element with the photovoltaic module can be displaced closely along adjoining components, for example a facade, an adjacent sliding element or the like, without the movement being hindered by a projecting connection socket. The bypass diodes are advantageously covered by the frame and thus protected against environmental influences and mechanical stress.

A simple structural design results from the fact that the at least one bypass diode is arranged laterally along the edges of the front glass and the back glass in the plane of the photovoltaic module. The preferably formed as a U-profile frame can be pushed over the side edge of the laminate and connected to this, wherein it comprises the side of the laminate disposed bypass diode with. The laminate is formed of at least the composite of the front glass, the potting material, the solar cells with the connectors and the back glass, as obtained after a lamination process.

A simple mounting of the frame can be made possible in that the dimension of the at least one bypass diode in the direction of the surface normal of the photovoltaic module is equal to or smaller than the distance between the outer surfaces of the front glass and the backside glass. The frame can thus easily be slid over the edge of the laminate without obstructing the assembly movement through the bypass diode. The dimensions of the frame and its receiving area can be optimally adapted to the thickness of the laminate

According to a particularly preferred embodiment of the invention, it may be provided that the front glass and / or the rear glass has at least one lateral recess at its edge and that the at least one bypass diode is at least partially disposed in the lateral recess. The frame can thus be pushed with its frame bottom to the edge of the laminate or to a small distance from the edge of the laminate. A large lateral projection of the frame over the laminate can be avoided.

A space-saving, yet protected arrangement of the bypass diode can be achieved in that the edges of the front glass and the back glass are at least partially offset from each other transversely to the surface normal of the photovoltaic module and that the at least one bypass diode in the region of the supernatant of a glass opposite the other glass is arranged. Such a projection can be achieved, for example, by using front and rear glasses with different external dimensions. The frame is preferably formed so that it also sufficiently encompasses the edge of the recessed glass. The bypass diode is advantageously arranged in the receiving area of the frame and protected both by the frame and by the protruding glass. Compared to front glass or rear glass with lateral recess discs in different sizes are much cheaper to produce.

According to a preferred embodiment of the invention, it can be provided that electrical contact points of the at least one bypass diode are arranged in the receiving region of the frame. The electrical contact points are arranged protected against environmental influences and mechanical stress. Advantageously, the electrical contact points can be produced prior to assembly of the frame, for example by soldering, welding, clamping, electrically conductive bonding and the like. The contact points are then easily accessible.

The sliding element of the invention is further achieved in that the at least one bypass diode is at least partially disposed in a recess or in an opening of the rear side glass and / or the front glass. The bypass diode is thus arranged inside the laminate. In this case, the laminate comprises at least the composite of front glass, embedding material, solar cells with connectors and back glass, as obtained after a lamination process. A back mounted on the photovoltaic module junction box for receiving the bypass diodes is not required. As a result, the sliding element with the photovoltaic module sealed along adjacent components, such as a facade, an adjacent sliding element or the like, are moved without the movement is hindered by a protruding junction box. The bypass diodes are advantageously integrated into the laminate and thus protected against environmental influences and mechanical stress.

A high protection of the bypass diode from environmental influences can be achieved that the bypass diode is at least partially surrounded by a the front glass with the back glass and connecting enclosing at least one solar cell Einbettmaterial.

The degrees of freedom of the possible movement of the sliding element can be increased by the fact that the sliding element is mounted displaceably and pivotably in the at least one guide rail transversely to the opening. In addition to a lateral displacement of the sliding element as well as a pivoting of the sliding element about a predetermined axis of rotation is possible. As a result, for example, the sliding element and thus the photovoltaic module can be optimally aligned with respect to the sun's rays. Furthermore, the sliding element can be moved by a combined sliding / pivoting movement and thus, for example, an opening in a building can be released. This can be advantageous if the lateral displacement is limited by adjacent components or building parts. Due to the pivoting movement, the sliding element can be pushed up to the adjacent component or building parts.

The incidence of light, for example in an interior of a building or in a roofed area, can be influenced by the fact that the distance between the solar cells to each other in dependence on a desired light transparency of the sliding element is predetermined.

Particularly advantageously, it can be provided that the front glass and / or the back glass is formed by a low-iron glass and / or a colored glass and / or a coated glass, in particular an antireflectively coated glass, and / or a tempered glass. Low-iron glass results in high transparency of the glass in the wavelength range in which conventional solar cells are sensitive. Therefore, a low-iron glass (solar glass) is particularly suitable for use as a front glass. When using bifacial target cells, the use of a low-iron backside glass may also be advantageous. By coating the glasses, their optical properties can be adapted to the respective requirements. By using antireflective coated glasses, the efficiency of the photovoltaic module can be increased. By tempering the glass, its breaking strength can be significantly increased. As a result, legal requirements, such as those applicable to overhead glazing or façade glazing, can be met.

The light transmission of the sliding element can be easily and cost-effectively adapted to the respective requirements that an embedding material and / or a backsheet of the at least one photovoltaic module are designed partially transparent.

The light transmission of the sliding element can also be adapted to the respective requirements that the front glass and / or the backside glass at least partially colored coated, preferably printed, is.

In order to increase the efficiency of the photovoltaic system, it can be provided that the at least one solar cell is designed as a bidirectional bifacial cell. In particular, in sliding elements, which allow both a linear displacement and a pivoting movement, so in many positions of the sliding element, a high energy yield can be achieved.

The object of the invention relating to the sliding element arrangement is achieved in that at least one busbar is arranged fixedly along the at least one guide rail in the direction of displacement of the sliding element and at least one contact element electrically connected to the at least one solar cell is attached to the sliding element, which at least along a portion of the sliding movement of the sliding member is in an electrically conductive, sliding or electrically conductive, rolling contact with the at least one busbar. The current generated by the solar cells can thus be conducted via the electrically conductive, sliding or electrically conductive, rolling contact with the busbar. Thus, no cables must be guided to the moving sliding element, which hinder the movement of the sliding element. It is also not necessary to attach a rear connection box to the photovoltaic module, in which the connections of the photovoltaic module are connected to its connection cables. As a result, the sliding element with the photovoltaic module can be displaced closely along adjoining components, for example a facade, an adjacent sliding element or the like, without the movement being hindered by a projecting connection socket. The busbars are fixedly connected to the guide rail. They can therefore be simple, for example via fixed cables, connected and thus the power generated, for example, be routed to an inverter. Due to the fixed installation of the connecting cables, they are only subjected to minimal mechanical load. They therefore have a significantly higher life expectancy than connecting cable, which are led to a moving sliding element on. This can significantly reduce the risk of cable breakage.

The connection of terminals of different polarity of one or more photovoltaic modules along a guide rail can be made possible in that the at least one busbar is electrically insulated from the guide rail or that two or more busbars are electrically isolated from each other and / or with respect to the guide rail. The busbars are thus each isolated separately, so that a short circuit is safely avoided.

According to a preferred embodiment of the invention, it may be provided that on the guide rail a single sliding element is guided with a single photovoltaic module, that a positive terminal of the photovoltaic module with a first contact element and a negative terminal is connected to a second contact element and that the first contact element at least along a portion of the sliding movement of the sliding element in an electrically conductive, sliding or electrically conductive, rolling contact to a busbar and the second contact element at least along a portion of the sliding movement of the sliding element in an electrically conductive, sliding or electrically conductive, rolling contact to another Busbar is. There is thus a contacting of both the positive and the negative terminal of the photovoltaic module. At the output of the busbars an MPP tracker can be provided. Thus, the photovoltaic module can be operated in its optimum power range.

Particularly preferably, it can be provided that negative connections of several photovoltaic modules of one or more sliding elements are electrically connected via at least one portion of the sliding movement of the respective sliding element via one or more of the contact elements with a common busbar and that positive terminals of the plurality of photovoltaic modules at least along a portion of Sliding movement of the respective sliding element via at least one contact element are each connected to a separate busbar or that positive terminals of several photovoltaic modules of one or more sliding elements at least along a portion of the sliding movement of the respective sliding element via one or more of the contact elements are electrically connected to a common busbar and that negative terminals of the plurality of photovoltaic modules at least along a portion of the sliding movement of the respective Schiebee Lements are connected via in each case at least one contact element, each with a separate busbar. The voltages output by the various photovoltaic modules are thus led separately to the outside through the different busbars. It can thus be provided for each photovoltaic module, a separate MPP tracker, whereby the individual photovoltaic module can be operated independently and each other in its optimum operating point. By using a common busbar for the positive or negative connections, the number of required busbars can be kept low.

It can advantageously be provided that the at least one busbar is arranged along the entire positioning range of the at least one contact element during displacement of the associated sliding element or that the at least one busbar or mutually electrically connected sections at least one busbar in end positions and / or in separate intermediate positions along the Adjustment range of the at least one contact element during displacement of the associated sliding element is arranged. With continuously arranged busbars, the current can be tapped in any position of the sliding element. The photovoltaic module can thus produce electricity in any position and during the displacement of the sliding element. In the case of busbars arranged only in the end positions or in the intermediate positions, the current tapping takes place only in these defined positions. A flow of current, for example during the different of the sliding element, is prevented. This results in defined contact resistances of the contact elements to the busbars and thus defined operating conditions for the at least one photovoltaic module.

In particular, if the at least one busbar or mutually electrically connected sections of at least one busbar is arranged in end positions and / or in separate intermediate positions along the adjustment range of the at least one contact element during displacement of the associated sliding element, it can be advantageously provided that the at least one sliding element in the end positions and / or in the separate intermediate positions can be locked. This ensures that the sliding element is pushed into and held in positions in which a power generation is possible.

Particular advantage may be provided that the at least one contact element is designed as a guide roller or as a contact pin or as a contact blade. By means of guide rollers, an electrically conductive, rolling contact can be made to the busbar. The rolling allows a smooth shift of the sliding element relative to the guide rail. Contact pins or contact blades are inexpensive to produce and can be easily connected as non-rotating components with the terminals of the photovoltaic module. They enable electrically conductive, sliding contact with the respective busbar.

A simple construction of the sliding element arrangement can be realized in that at least two contact elements are fastened to a common carrier (holding arm, sliding parts) and that the carrier is designed to be electrically insulating or that the contact elements are electrically insulated from the carrier. Due to the electrical insulation while a short circuit is safely avoided.

A smooth movement of the sliding element relative to the guide rail can be achieved that the at least one sliding element is slidably supported by means of at least one roller on the at least one guide rail, preferably that at least one sliding element by means of at least one guide roller, which rests on the at least one busbar and unrolls, is slidably mounted. If the sliding element is displaceably mounted on the guide rail by means of a guide roller, the guide roller assumes two tasks, namely the easily movable mounting of the sliding element on the guide rail and the power transmission to the busbar. This results in a cost-effective design.

To connect the sliding element both linearly adjustable and pivotally connected to the guide rail, it can be provided that the at least one sliding element with at least one rotary sliding element is linearly displaceable and pivotally mounted about a transversely to the direction of displacement of the sliding element aligned pivot axis on the at least one guide rail. The sliding element can thus be both linearly shifted and pivoted. By the pivoting movement, the sliding element can be pushed, for example, to a side of the opening to be covered wall or another component and thus the opening are released, even if the possible sliding path is spatially limited by the adjacent wall or the component. It is also possible to adjust the slide element along curved guide rails by the linearly displaceable and pivotable mounting.

• 1 in einer Draufsicht ein Laminat eines in den 2, 4, 8, 9, 10, 11, 12 dargestellten Photovoltaikmoduls,
• 2 in einer perspektivischen Seitenansicht eine Schiebeelementanordnung mit einem mittels Leitrollen an einer Führungsschiene gelagerten Schiebeelement,
• 3 in einer schematischen Detailansicht eine Bypass-Diode in einer ersten Anordnung an einem Doppelglas-Modul,
• 4 in einer Schnittdarstellung die in 2 gezeigte Schiebeelementanordnung,
• 5 in einer schematischen Detailansicht eine Bypass-Diode in einer zweiten Anordnung an einem Doppelglas-Modul,
• 6 in einer schematischen Detailansicht eine Bypass-Diode in einer dritten Anordnung an einem Doppelglas-Modul,
• 7 in einer schematischen Detailansicht eine Bypass-Diode in einer vierten Anordnung an einem Doppelglas-Modul,
• 8 in einer Schnittdarstellung eine Schiebeelementanordnung mit einem Dreh-Schiebeelement und einem Kontaktstift,
• 9 in einer perspektivischen Seitenansicht die in 8 gezeigte Schiebeelementanordnung,
• 10 in einer perspektivischen Detailansicht ein erstes Schiebeteil der in 9 gezeigten Schiebeelementanordnung,
• 11 in einer perspektivischen Detailansicht eine Schiebeelementanordnung mit einem Dreh-Schiebeelement und mit Kontaktlamellen und
• 12 in einer Schnittdarstellung eine Schiebeelementanordnung mit einem Dreh-Schiebeelement und vertikal angeordneten Kontaktlamellen.

The invention will be explained in more detail below with reference to an embodiment shown in the drawings. Show it:

• 1 in a plan view, a laminate of a in the 2 . 4 . 8th . 9 . 10 . 11 . 12 illustrated photovoltaic module,
• 2 3 is a perspective side view of a sliding element arrangement with a sliding element mounted on a guide rail by means of guide rollers;
• 3 in a schematic detail view of a bypass diode in a first arrangement on a double-glass module,
• 4 in a sectional view the in 2 sliding element arrangement shown,
• 5 in a schematic detail view of a bypass diode in a second arrangement on a double-glass module,
• 6 in a schematic detail view of a bypass diode in a third arrangement on a double-glass module,
• 7 in a schematic detail view of a bypass diode in a fourth arrangement on a double-glass module,
• 8th in a sectional view of a sliding element arrangement with a rotary sliding element and a contact pin,
• 9 in a perspective side view the in 8th sliding element arrangement shown,
• 10 in a perspective detailed view of a first sliding part of in 9 sliding element arrangement shown,
• 11 in a perspective detailed view of a sliding element assembly with a rotary sliding element and with contact blades and
• 12 in a sectional view of a sliding element arrangement with a rotary sliding element and vertically arranged contact blades.

1 shows a laminate in a plan view 11 one in the 2 . 4 . 8th . 9 . 10 . 11 . 12 illustrated photovoltaic module 10 , For a better representation of the comparatively long laminate 11 a middle portion of the laminate is not shown, as indicated by the jagged fracture edges. The photovoltaic module 10 is as a double glass module with an in 4 shown front glass 20 and one about it also in 4 shown embedding material 18 connected back glass 21 educated. Between the front glass 20 and the back glass 21 are solar cells 12 arranged. Here are the solar cells 12 from the embedding material 18 embedded. The solar cells 12 are as far as possible protected against environmental influences and mechanical stress. In the embodiment shown, back-contacted solar cells 12 used, in which the electrical contact of the front is guided on the back.

The electrical connection of the solar cells 12 thus takes place on the back. These are the solar cells 12 by means of cell connectors 13 , in this case by means of three cell connectors 13 , interconnected. In the embodiment shown, three solar cells each 12 to a string in series. There are two strings side by side in the laminate 11 arranged. A given number of strings is arranged one above the other. In the middle area of the laminate 11 are the cell connectors 13 in each case two strings arranged one above the other with connectors 14.2 electrically connected to each other. At the lateral edges of the laminate 11 are the cell connectors 13 after the last solar cells 12 electrically to cross connector 14.1 connected. This results in six groups of series-connected solar cells, which in turn through the cross connector 14.1 are connected in series with each other.

At the outer edge of the laminate 11 are bypass diodes 17 arranged. The bypass diodes 17 are electrical with the cross connectors 14.1 connected. The front glass 20 and the backside glass 21 form lateral recesses 22 out. The bypass diodes 17 are each in such a lateral recess 22 positioned. End are the cross connectors 14.1 with a positive connection 15.1 and a negative connection 15.2 of the laminate 11 connected.

For every group of six of solar cells 12 is a bypass diode 17 connected in parallel. Here are the bypass diodes 17 operated in the reverse direction. In case of a defect of a solar cell 12 or a shadowing of one or more solar cells 12 A cell group can be the current of the remaining solar cells 12 via the respective bypass diode 17 the affected cell group flow. A so-called "hot spot" - education can be avoided.

The solar cells 12 are arranged at a predetermined distance from each other. This distance can be predetermined such that a desired light transmission of the laminate 11 is obtained.

It is also possible to use other types of solar cells 12 provided. For example, solar cells contacted on both sides 12 be used. The solar cells 12 may be polycrystalline, multicrystalline or monocrystalline. The use of thin-film solar cells is conceivable. The use of bi-directional bifacial solar cells is particularly advantageous, as it does so on both sides of the laminate 11 incident light can be converted into electrical energy. This allows power generation in different positions of the sliding element 2 ,

Preferably, a maximum of 90 solar cells 12 in a photovoltaic module 10 provided and connected in series. The open circuit voltage of the photovoltaic module 10 then lies below 60 volts. There is thus a safety extra-low voltage which does not require any additional insulation as contact protection. The dimensions of the front glass 20 or the backside glass 21 are preferably in about 1 m × 2.5m. This allows the required number of solar cells 12 embedded and a sufficiently large distance between the cross connectors 14.1 and the edge of the laminate 11 be achieved.

Particularly preferred are the bypass diodes 17 each to a maximum of six solar cells connected in series 12 connected in parallel.

2 shows a perspective side view of a sliding element arrangement 1 with one by means of guide rollers 41 . 44 on a first guide rail 50 mounted sliding element 2 , This in 1 shown laminate 11 is laterally from a frame 16 edged. The frame 16 is designed as a U-profile. He has two spaced-apart frame legs 16.1 on that through a frame floor 16.2 connected to each other. The frame legs 16.1 and the frame floor 16.2 thus form a reception area 16.3 out. The frame 16 is with its reception area 16.3 on the outer edge of the laminate 11 postponed. This causes the edges of the front glass 20 and the backside glass 21 as well as the outer completion of the embedding material 18 through the frame 16 protected arranged. How to 1 described, are the bypass diodes 17 in lateral recesses 22 of the front glass 20 and the backside glass 21 positioned. These side cutouts 22 are from the frame 16 encompassed. The bypass diodes 17 are thus in the receiving area 16.3 of the frame 16 arranged. This protects them from external influences.

The upper edge of the laminate 11 is in a laminate pickup 31 an upper frame profile 30 plugged like this closer in 4 is shown. The connections 15.1 . 15.2 of the photovoltaic module 10 are within the upper frame profile 30 laterally from the laminate 11 led out.

The first guide rail 50 is designed as a hollow profile. How closer in 4 shown, the first guide rail 50 two spaced-apart side parts 58.1 . 58.2 on, passing through a connecting section 59 connected to each other. At the first side part 58.1 are a first stop 52 and spaced to a second holding bridge 54 formed. These are aligned with the enclosed interior of the hollow profile. End are on the first support bridge 52 two spaced apart, first guide webs 53 arranged. These form one of the sliding element 2 turned away opened, first guide groove 53.1 out. Correspondingly, two second guide webs are at the end on the second retaining web 55 molded, which a second guide 55.1 limit laterally. Also the second guide groove 55.1 is the sliding element 2 turned away. In the first guide groove 53.1 is a first busbar 60 and in the second guide groove 55.1 a second busbar 61 held. The first and the second busbar 60 . 61 are each by an insulating rail 56 . 57 opposite the hollow profile of the first guide rail 60 isolated. isolation rails 56 . 57 are formed as profile elements, preferably made of a non-conductive plastic, which in the guide grooves 53.1 . 55.1 are used. The first and the second busbar 60 . 61 are made of a material with high electrical conductivity. In the present case, the first and the second busbar 60 . 61 made of copper or a copper alloy. The first and the second busbar 60 . 61 are formed as a metal strip with a present rectangular cross-section. However, other cross-sectional shapes are conceivable.

The upper frame profile 30 has two spaced apart legs 32 on the over a crossbar 33 connected by the thighs 32 and the crossbar 33 is the laminate pickup 31 of the upper frame profile 30 educated. In this laminate recording 31 is the upper end of the laminate 11 introduced. To the thighs 32 each are a positioning section 36 and a holding area 37 formed, which to the laminate 11 are aligned. The laminate 11 lies with the outer surfaces of the front glass 20 and the backside glass 21 at the respective positioning sections 36 and holding areas 37 on, causing the laminate 11 laterally opposite the upper frame profile 30 is aligned and held. It is conceivable in the laminate recording 31 to apply an adhesive or tape to provide an additional connection between the upper frame profile 30 and the laminate 11 to reach. The laminate intake 31 turned away forms the upper frame profile 30 a groove 34 out. The groove 34 is laterally by oppositely disposed groove side walls 34.1 and for laminate recording 31 through the crossbar 33 demarcated. To the first guide rail 50 The groove forms 34 a slot opening 34.3 out. The slot opening 34.3 is laterally through to the groove side walls 34.1 molded holding sections 34.2 limited. In the groove 34 is a holding element 35 held. The holding element 35 is dimensioned such that it does not pass through the slot opening 34.3 can be adjusted. For this it lies on the side of the holding sections 34.2 at. For mounting, the retaining element 35 frontally into the groove 34 be introduced. An approach 35.1 of the holding element 35 is through the slot opening 34.3 guided. At the approach 35.1 is a holding arm 40 attached. The holding arm 40 is through an opening 51 in the interior of the first guide rail 50 guided. He serves as the carrier of the first leading role 41 , Covered by the front arm 40 is another arm 40 at another, in the groove 34 of the upper frame profile 30 held holding element 35 attached and into the cavity of the first guide rail 50 led, like this 2 can be removed. On the second guide arm 40 is the second leading role 44 attached. How out 4 it can be seen, are the guide rollers 41 . 44 around each axis of rotation 42 . 45 rotatable with the respective holding arms 40 connected. Here is the second role 44 above the first idler 41 on the associated holding arm 40 arranged. At the outer circumference of the guide rollers 41 . 44 is each a guide groove 43 . 46 into the guide rollers 41 . 44 formed. The guide rollers 41 . 44 are with the guide grooves 43 . 46 on the first and the second busbar 60 . 61 placed. The leading role 41 . 44 are thus in the axial direction of the guide rollers 41 . 44 by the engagement of the first and second busbars 60 . 61 in the guide grooves 43 . 46 guided.

Like that 2 and 4 it can be seen, the sliding element 2 along the first guide rail 50 be moved against this. This is the sliding element 2 with the two guide rollers 41 . 44 at the first and the second busbar 60 . 61 hooked. When moving the sliding element laterally 2 roll the guide rollers 41 . 44 on the first or the second busbar 60 . 61 , This allows a smooth lateral displacement of the sliding element 2 ,

In the 2 shown connections 15.1 . 15.2 are each with one of the guide rollers 41 . 44 electrically connected. This is in each case a not shown cable from the terminals 15.1 . 15.2 to the assigned guide rollers 41 . 44 guided. The guide rollers 41 . 44 are then formed isolated from the respective support arm. The one from the solar cells 12 generated electricity can be so from the guide rollers 41 . 44 on the first and the second busbar 60 . 61 be transferred and derived from these.

It is also conceivable, the retaining elements 35 insulating and the retaining arms 40 electrically conductive train. The connections 15.1 . 15.2 are then electrically, each with a holding arm 40 connected. For this purpose, for example, in each case a cable between an electrical connection 15.1 . 15.2 and a holding arm 40 be provided. The guide rollers 41 . 44 are in this embodiment electrically conductive with the respective support arm 40 connected. The one from the solar cells 12 generated electricity is so from the two terminals 15.1 . 15.2 , optionally intermediary cables, the support arms 40 and the guide rollers arranged thereon 41 . 44 to the respective first and second busbar 60 . 61 transfer.

In the present case is the positive connection 15.1 of the photovoltaic module 10 electrically with the second guide roller 44 and the negative connection 15.2 with the first guide role 41 connected. This is due to the first busbar 60 the negative voltage and at the second busbar 61 the positive voltage of the photovoltaic module 10 at. The first and the second busbar 60 . 61 can not be connected to an inverter via connection cables. To optimize the performance is preferably each photovoltaic module 10 associated with an MPP tracker (Maximum Power Point Tracker). The MPP tracker enables performance optimization through so-called MPP (Maximum Power Point Tracking) tracking. Advantageously, the MPP tracker is electrically connected to the first and second busbars 60 . 61 connected.

By the storage of the sliding element 2 by means of the guide rollers 41 . 44 at the first guide rail 50 becomes a smooth shift of the sliding element 2 reached. Here are the guide rollers 41 . 44 in an electrically conductive, rolling contact with the respective first and second busbar 60 . 61 , The one from the solar cells 12 generated power can thus during the displacement of the sliding element 2 and in its possible rest positions on the first and second busbars 60 . 61 be transmitted. This allows the generation of electricity in all possible positions of the sliding element 2 ,

Because the bypass diodes 17 in the recording area 16.3 of the frame 16 arranged and the connections 15.1 . 15.2 of the photovoltaic module 10 laterally from the laminate 11 are out, is a junction box for the execution of the connections 15.1 . 15.2 and picking up the bypass diodes 17 as you would otherwise with photovoltaic modules 10 provided and arranged on the back, not required. The sliding element 2 can thus be tight, for example, in front of a building wall, arranged and moved along this. Thus, the sliding element arrangement 1 For example, be used as a laterally movable shutter, which can be pushed in front of a window opening. In this case, an undesirable light incidence by a between the building wall and the sliding element 2 trained gap are largely avoided.

3 shows a schematic detail view of a bypass diode 17 in a first arrangement on a double glass module. The representation is not to scale. The bypass diode 17 is in the area of the lateral recess 22 of the front glass 20 and the backside glass 21 arranged. The cross connectors 14.1 are in the area of the lateral recess 22 guided. diode terminals 17.1 the bypass diode 17 are to the cross connectors 14.1 guided and in the area of the lateral recess 22 through electrical contact points 17.2 associated with this. The electrical contact points 17.2 can be advantageously prepared by soldering, welding, clamping or by electrically conductive bonding. The electrical contact points are advantageous 17.2 in the area of the lateral recess 22 arranged. The bypass diodes 17 so can after a lamination process for the production of the laminate 11 with the cross connectors 14.1 get connected. This will make the bypass diodes 17 not exposed to the high temperatures during the lamination process. It is advantageous in the direction of the surface normal of the photovoltaic module 10 Measured dimension of the bypass diode 17 less than or equal to the thickness of the laminate 10 , This is the bypass diode 17 not over the surfaces of the front glass 20 and the backside glass 21 over and the frame 16 Can on the edge of the laminate 11 be deferred without the bypass diode 17 to damage. Advantageously, the bypass diode 17 , the diode connections 17.1 and the electrical contact points 17.2 in the recording area 16.3 of the frame 16 absorbed and thereby protected from external environmental influences and mechanical loads.

4 shows, as described above, in a sectional view the in 2 shown sliding element arrangement 1 ,

5 shows a schematic detail view of a bypass diode 17 in a second arrangement on a double glass module. The representation is not to scale. The front glass 20 is larger than the back glass 21 , As a result, the front glass is laterally above the back glass 21 above. The present in SMD design trained bypass diode 17 is in the area of the supernatant of the front glass 20 opposite the back glass 21 arranged. She is there with the cross connectors 14.1 connected. The frame 16 is over the edge of the laminate 11 pushed so that he the outer area of the front glass 20 and the backside glass 21 embraces. This is the bypass diode 17 in the recording area 16.3 of the frame 16 arranged. Preferably, the bypass diode 17 in the direction of the surface normals of the photovoltaic module 10 a smaller or the same dimension as the back glass 21 , This is the bypass diode 17 not over the surface of the backside glass 21 out and the frame 16 Just go to the edge of the laminate 11 be deferred. The frame 16 is present with a frame adhesive 19 with the outer surface of the front glass 20 and the backside glass 21 bonded. This creates a strong bond between the frame 16 and the laminate 11 reached. The frame adhesive 19 may be formed as a liquid adhesive or as a double-sided adhesive tape.

6 shows a schematic detail view of a bypass diode 17 in a third arrangement on a double glass module. The representation is not to scale. In the back glass 21 is the front glass 20 facing a recess 23 formed. The recess 23 is designed as a blind hole. The bypass diode 17 is at least partially in the recess 23 arranged. This gives enough space to the bypass diode 17 inside the laminate 11 to arrange. The bypass diode 17 is thus protected against environmental influences and mechanical loads. She is not concerned about the external dimensions of the photovoltaic module 10 above. On a junction box with the advantages described can be dispensed with.

7 shows a schematic detail view of a bypass diode 17 in a fourth arrangement on a double glass module. The representation is not to scale. In the back glass 21 is a breakthrough 24 formed. The breakthrough 24 is preferably formed as a bore. The bypass diode 17 is at least partially in the breakthrough area 24 arranged. The breakthrough 24 is through the embedding material 18 sealed. Also in this arrangement, the bypass diode 17 inside the laminate 11 can be arranged, which can be dispensed with a junction box.

8th shows a sectional view of a sliding element arrangement 1 with a rotary sliding element 80 and a contact pin 92 , The construction of the laminate 11 , the upper frame profile 30 and the holding element held therein 35 corresponds to the illustration in 4 to which reference is hereby made.

A second guide rail 70 is designed as a hollow profile. It has opposing side walls arranged 74 on, passing through a second connecting section 75 connected to each other. To the photovoltaic module 10 pointing out is the second guide rail 70 through a second opening 71 which extends along the longitudinal extent of the second guide rail 70 extends, opened. In the side walls 74 are an upper guide groove 72.1 , a middle guide groove 72.2 and a lower guide groove 72.3 formed. The guide grooves 72.1 . 72.2 . 72.3 are each in the opposite side walls 74 brought in. Above the upper guide groove 72.1 is a sliding area 73 educated. In the sliding area 73 a first sliding part is arranged. The first sliding part 90 is over a central section 82 and a subsequent connecting element 81 of the rotary sliding element 80 with the approach 35.1 of the holding element 35 connected. Here is the connecting element 81 through the second opening 71 the second guide rail 70 guided. On the central section 82 are an upper bearing section 83.1 , a middle bearing section 83.2 and a lower bearing section 83.3 held. The storage sections 83.1 . 83.2 . 83.3 are disc-shaped. They are at their outer periphery in the associated guide grooves 72.1 . 72.2 . 72.3 guided. This forms a longitudinal direction of the second guide rail 70 slidable and about a central longitudinal axis of the rotary sliding element 80 rotatable mounting between the rotary sliding element 80 and the second guide rail 70 out. These can be the bearing sections 83.1 . 83.2 . 83.3 rotatable with the central portion 82 be connected. It is also conceivable, the bearing sections 83.1 . 83.2 . 83.3 as a ball bearing with arranged on the outer circumference balls form. The balls then form the support in the guide grooves 72.1 . 72.2 . 72.3 , resulting in a smooth linear adjustable and rotatable connection between the rotary-slide element 80 and the second guide rail 70 results.

In the first sliding part are contact pin receptacles 91 introduced in the form of holes. In a contact pin recording 91 is a sleeve section 92.1 a contact pin 92 added. A contact section 92.2 of the contact pin 92 protrudes from the contact pin receptacle 91 , Preferably, the contact pin 92 spring biased.

In the second connection section 75 the second guide rail 70 are recesses 76 molded into these are latching approaches 65.1 a first busbar holding member 65 engaged. The busbar holding element 65 is so on the inner surface of the second connection portion 75 held. On the first busbar holding element 65 is a third busbar 62 , a fourth busbar 63 and a fifth busbar 64 attached thereto, the first busbar holding element has 65 protruding rail holders 62.2 on which the third, fourth and fifth busbars 62 . 63 . 64 embrace each other at their lateral edges and thereby hold. The first busbar holding element 65 is formed of an insulator, preferably of a non-conductive plastic. It thereby isolates the third, fourth and fifth busbars 62 . 63 . 64 against each other and against the second guide rail 70 , The third, fourth and fifth busbars 62 . 63 . 64 are each made of an electrically good conductive material, preferably made of a metal. The contact pin 92 is with his contact section 92.2 against the fifth busbar 64 pressed. This is between the contact pin 92 and the fifth busbar 64 formed an electrically conductive, sliding contact. When moving the sliding element linearly 2 along the longitudinal extent of the second guide rail 70 slides the contact pin 92 along the fifth busbar 64 and thus forms a loop contact. The first sliding part 90 is rotatable with the central portion 82 of the rotary sliding element 80 connected. The first sliding part 90 has an angular shape that is not within the sliding range 73 can be turned. When swiveling the sliding element 2 and the rotation of the rotary slide member caused thereby 80 within the second guide rail 70 remains the first sliding part 90 opposite the second guide rail 70 aligned and is not rotated with. This leaves the contact pin 92 also when swiveling the sliding element 2 opposite the associated fifth busbar 64 aligned.

9 shows in a perspective side view of in 8th shown sliding element arrangement 1 , The same components are designated the same. For better illustration, the second guide rail 70 partially open. The first busbar holding element 65 and the third, fourth, and fifth busbars 62 . 63 . 64 are interrupted in this area, giving a look inside the second guide rail 70 allows. The sliding element 2 is through two rotary sliding element 80 in the second guide rail 70 guided. Here are the rotary sliding elements 80 spaced from each other in the lateral edge region of the sliding element 2 arranged, whereby a jamming-free linear adjustment of the sliding element 2 is possible. Each rotary sliding element 80 is a first sliding part 90 assigned. In every sliding part 90 is in a contact pin receptacle 91 a contact pin 92 held. This is a contact pin 92 the third busbar 62 and the other contact pin 92 the fifth busbar 64 assigned. The contact pins 92 are each electrical with one of the connections 15.1 . 15.2 of the photovoltaic module 10 connected. This can be done, for example, by cables, not shown, which are the connections 15.1 . 15.2 with the respective contact pins 92 connect, done. The contact pins 92 transfer that from the solar cells 12 generated current to the respectively assigned third and fifth busbar 62 . 64 , The third or fifth busbar 62 . 64 are not shown connected via connecting cable with an inverter or with an MPP tracker, as already described for Figure four. The stream of solar cells 12 can thus by the between the contact pins 92 and the associated third and fifth busbars 62 . 64 trained, electrically conductive, sliding contact from the contact pins 92 on the busbars 62 . 64 be directed and discharged. In this case, the current in both the possible rest positions of the sliding element 2 as well as when moving the sliding element 2 be derived.

Through the rotary sliding elements 80 is both a sliding and a rotatable mounting of the sliding element 2 on the second guide rail 70 reached. This makes it possible, for example, the second guide rail 70 Form bent along its longitudinal extent. The sliding element 2 can thus be moved on a curved path, for example around an inner corner of a building. This is followed first by the front in the direction of rotation rotary slide element 80 the bent portion of the second guide rail 70 while the rear rotary sliding element 80 still in the rectilinear region of the second guide rail 70 is guided. The sliding element 2 can be moved so far until it is completely adjusted around the corner. By the rotatable coupling of the first sliding part 90 to the rotary sliding element 80 This may be in accordance with the orientation of the second guide rail 70 at the respective position of the first sliding part 90 corresponding to the second guide rail 70 align. This ensures that the contact pins 92 also in the area of bending the assigned, also bent busbars 62 . 63 . 64 consequences.

Along the second guide rail 70 can not pictured two sliding element 2 be guided. The negative connection 15.2 of the photovoltaic module 10 of the second sliding element 2 is via a corresponding contact pin 92 with the same, in the illustrated embodiment, the fifth busbar 64 connected like the photovoltaic module 10 of the first sliding element. The positive connection 15.1 of the first photovoltaic module 10 is electrically connected to the third busbar 62 and the positive connection 15.1 of the second photovoltaic module 10 with the fourth busbar 63 connected. This allows the voltages of the photovoltaic module 10 separately from the sliding element arrangement 1 be dissipated. This allows a separate MPP tracking for both photovoltaic modules 10 which can optimize the performance of the system.

10 shows in a perspective detail view of the first sliding part 90 the in 9 shown sliding element arrangement 1 , The first sliding part 90 are two pins 92 assigned, which are electrically connected to each other. This will the current via two pins 92 on the assigned, in this case the third busbar 62 , transfer. By this measure, the contact resistance can be reduced and the transmission reliability for the current can be increased.

11 shows a perspective detail view of a sliding element arrangement 1 with a rotary sliding element 80 and with contact blades 95.1 . 95.2 . 95.3 , Apart from a second sliding part 94 and the contact blades 95.1 . 95.2 . 95.3 corresponds to the structure of the sliding element assembly 1 in the 8-10 structure shown, to the description of which reference is hereby made.

The second sliding part 94 is rotatable with the central portion 82 of the rotary sliding element 80 connected. It is not rotatable in the sliding area 73 the second guide rail 70 guided, so that upon rotation of the rotary sliding element 80 not being shot with. On his third, fourth and fifth busbar 62 . 63 . 64 facing top are lamellae 94.1 in the second sliding part 94 formed. In the lamellae shots 94.1 is each one of the contact blades 95.1 . 95.2 . 95.3 established. The slats of the contact blades 95.1 . 95.2 . 95.3 are each to the assigned busbars 62 . 63 . 64 aligned. Thus, the first contact blade forms 95.1 an electrically conductive, sliding contact with the third busbar 62 , Accordingly forms the second contact blade 95.2 an electrically conductive, sliding contact with the fourth busbar 63 and the third contact blade 95.2 an electrically conductive, sliding contact with the fifth busbar 64 , These contacts remain both resting and moving sliding element 2 so that the current of the photovoltaic module 10 on the third, fourth or fifth busbar 62 . 63 . 64 can be transferred.

12 shows a sectional view of a sliding element arrangement 1 with a rotary sliding element 80 and vertically arranged, fourth and fifth contact blades 97.1 . 97.2 , Apart from a third sliding part 96 and the fourth and fifth contact blades 97.1 . 97.2 corresponds to the structure of the sliding element assembly 1 in the 8-10 structure shown, to the description of which reference is hereby made.

The third sliding part 96 has one in the direction of sliding movement of the sliding element 2 running slot 96.2 on, in its side walls two oppositely disposed, second lamellae recordings 96.1 are formed. In the second lamellae shots 96.1 are the fourth and fifth contact blades 97.1 . 97.2 held. The fourth contact blade 97.1 is with the positive connection 15.1 and the fifth contact blade 97.2 with the negative connection 15.2 of the photovoltaic module 10 of the sliding element 2 electrically connected. A second busbar holding element 68 is about second locking approaches 68.1 , which in corresponding recesses 76 a third guide rail 77 engage, attached to this. The second busbar holding element 68 has a web-shaped holding area 68.2 up in the slot 96.2 the third sliding part 96 protrudes. The holding area 68.2 carries on its opposite surfaces a sixth busbar 66 and a seventh busbar 67 , The sixth busbar 66 is the fourth contact blade 97.1 and the seventh busbar 77 the fifth contact blade 97.2 facing. The fourth contact blade 97.1 forms an electrically conductive, sliding contact with the sixth busbar 66 out. Accordingly forms the fifth contact blade 97.2 an electrically conductive, sliding contact with the seventh busbar 77 out. These electrically conductive, sliding contacts is the positive terminal 15.1 of the photovoltaic module 10 electrically with the sixth busbar 66 and the positive connection 15.2 electrically with the seventh busbar 67 connected. The second busbar holding element 68 is designed as an insulator. In the present case, the second busbar holding element 68 made as a plastic molding of a non-conductive plastic.

Also in 12 arrangement shown thus allows the transmission of the solar cells 12 generated electricity via electrically conductive, sliding contacts on the associated sixth and seventh busbar 66 . 67 , The current can thus in all sliding and pivoting positions of the sliding element 2 from the sliding element arrangement 1 be derived.

The in the 1 to 12 shown sliding element arrangement 1 can be used for various applications, such as conservatory glazing, slatted roofs, sliding elements 2 on facades as shutters, sliding elements 2 be used as a canopy and the like. The system voltage is preferably below 60 V, whereby no additional insulation is required as contact protection. Particular preference is given to each photovoltaic module 10 Its own maximum power point tracking, which can optimize the performance of the photovoltaic system. When using several photovoltaic modules 10 Show all photovoltaic module 10 preferably the same number of solar cells 12 on. The photovoltaic module 10 thus generate the same voltage, whereby a parallel connection via a string diode is possible.

According to a conceivable embodiment, the busbars 60 . 61 . 62 . 63 . 64 . 66 . 67 not over the entire length of the guide rails 50 . 70 . 77 and / or the displacement region of the sliding element 2 educated. So can the busbars 60 . 61 . 62 . 63 . 64 . 66 . 67 in end positions or in defined intermediate positions with the sliding element 2 be arranged adjusted contact element. A current transfer is then possible only in these end positions or defined intermediate positions. It is also conceivable, the sliding element 2 form mechanically lockable in these end positions or intermediate positions. By these measures, low-resistance sliding or rolling contacts can be achieved with correspondingly low losses.

By varying the distance of the solar cells 12 to each other, the light transparency of the sliding element 2 adapted to the respective requirements. It is also conceivable that the light transparency by a correspondingly colored embedding material 18 or through a colored back glass 21 to adapt to the requirements.

It is also conceivable, by a corresponding regional coating, preferably by a region printing, the front glass 20 and / or the backside glass 21 intended areas of the laminate 11 optically cover. For example, the areas of the cross connectors can be covered.

According to an embodiment not shown, it is conceivable, the one or more sliding elements 2 to move or give over a motor drive.

It is also conceivable, multi-track guide rails 50 . 70 . 77 to use in which several sliding element 2 guided and, for example, slightly spaced from each other can be pushed over each other.

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 10028433 A1 [0005]
• DE 102013109391 A1 [0006]

Claims (25)

Sliding element (2) for moving along an opening on a building or the like, the sliding element (2) comprising at least one photovoltaic module (10) in the form of a double-glass module with a front glass (20) and a rear glass (21) and one of the edges of the front glass (20) and the rear side glass (21) at least partially encompassing frame (16), wherein the edges of the front glass (20) and the rear side glass (21) at least partially in a receiving area (16.3) of the frame (16) are arranged, wherein the Sliding element (2) is designed to at least partially cover or release the opening by the at least one photovoltaic module (10) in dependence on its sliding position, wherein the sliding element (2) on at least one guide rail (50, 70, 77) transversely to the opening is slidably mounted, wherein the at least one photovoltaic module (10) at least one or more solar cells (12) for the conversion of solar energy in having electrical energy, and wherein at least one bypass diode (17) is connected in the reverse direction parallel to one or more series-connected solar cells (12), characterized in that the at least one bypass diode (17) in the receiving region ( 16.3) of the frame (16) is arranged. Sliding element (2) after Claim 1 , characterized in that the at least one bypass diode (17) is arranged laterally along the edges of the front glass (20) and the back glass (21) in the plane of the photovoltaic module (10). Sliding element (2) after Claim 1 or 2 characterized in that the dimension of the at least one bypass diode (17) in the direction of the surface normal of the photovoltaic module (19) is equal to or smaller than the distance between the outer surfaces of the front glass (20) and the back glass (21). Sliding element (2) according to one of Claims 1 to 3 , characterized in that the front glass (20) and / or the rear side glass (20) at its edge at least one lateral recess (22) and that the at least one bypass diode (17) at least partially in the lateral recess (22) is. Sliding element (2) according to one of Claims 1 to 4 , characterized in that the edges of the front glass (20) and the rear side glass (21) transversely to the surface normal of the photovoltaic module (10) are at least partially offset from each other and that the at least one bypass diode (17) in the region of the supernatant of a glass (20, 21) relative to the other glass (20, 21) is arranged. Sliding element (2) according to one of Claims 1 to 5 , characterized in that electrical contact points (17.2) of the at least one bypass diode (17) in the receiving area (16.3) of the frame (16) are arranged. Sliding element (2) for moving along an opening on a building or the like, the sliding element (2) comprising at least one photovoltaic module (10) in the form of a double-glass module with a front glass (20) and a rear glass (21) and one of the edges of the front glass (20) and the rear side glass (21) at least partially encompassing frame (16), wherein the edges of the front glass (20) and the rear side glass (21) at least partially in a receiving area (16.3) of the frame (16) are arranged, wherein the Sliding element (2) is designed to at least partially cover or release the opening by the at least one photovoltaic module (10) in dependence on its sliding position, wherein the sliding element (2) on at least one guide rail (50, 70, 77) transversely to the opening is slidably mounted, wherein the at least one photovoltaic module (10) at least one or more solar cells (12) for the conversion of solar energy in having electrical energy, and wherein at least one bypass diode (17) in the reverse direction is connected in parallel to one or more series-connected solar cells (12), characterized in that the at least one bypass diode (17) at least partially in one Recess (23) or in an opening (24) of the rear side glass (21) and / or the front glass (20) is arranged. Sliding element (2) after Claim 7 , characterized in that the bypass diode (17) is at least partially surrounded by a the front glass (20) with the rear glass (21) connecting and enclosing the at least one solar cell embedding material (18). Sliding element (2) according to one of Claims 1 to 8th , characterized in that the sliding element (2) in the at least one guide rail (50, 70, 77) is mounted displaceably and pivotally transversely to the opening. Sliding element (2) according to one of Claims 1 to 9 , characterized in that the distance between the solar cells (12) to each other in dependence on a desired transparency of the light slide element (2) is predetermined. Sliding element (2) according to one of Claims 1 to 10 , characterized in that the Front glass (20) and / or the backside glass (21) by a low-iron glass and / or a colored glass and / or a coated glass, in particular an antireflective coated glass, and / or a toughened glass is formed. Sliding element (2) according to one of Claims 1 to 11 , characterized in that an embedding material (18) and / or a backsheet of the at least one photovoltaic module (10) are made partially transparent. Sliding element (2) according to one of Claims 1 to 12 , characterized in that the front glass (20) and / or the rear side glass (21) at least partially colored coated, preferably printed, is. Sliding element (2) according to one of Claims 1 to 13 , characterized in that the at least one solar cell (12) is designed as a bidirectional bifacial cell Sliding element arrangement (1) with a sliding element (2) for displacement along an opening on a building or the like, the sliding element (2) comprising at least one photovoltaic module (10) designed as a double-glass module with a front glass (20) and a rear glass (21) and / or wherein the sliding element (2) has at least one photovoltaic module (10) with a front glass (20) and a rear-side foil, said sliding element (2) depending on its sliding position, the opening through the at least a photovoltaic module (10) covers or releases at least partially, the sliding element (2) being mounted displaceably on at least one guide rail (50, 70, 77) transversely to the opening, wherein the at least one photovoltaic module (10) comprises at least one or more solar cells ( 12) for conversion of solar energy into electrical energy, characterized in that along the at least one F Guide rail (50, 70, 77) in the direction of the sliding element (2) extending at least partially at least one busbar (60, 61, 62, 63, 64, 66, 67) is arranged stationary and that on the sliding element (2) at least one with the at least one solar cell (12) is electrically connected contact element which at least along a portion of the sliding movement of the sliding element (2) in an electrically conductive, sliding or electrically conductive, rolling contact with the at least one busbar (60, 61, 62, 63 , 64, 66, 67). Sliding element arrangement (1) according to Claim 15 characterized in that the at least one busbar (60, 61, 62, 63, 64, 66, 67) is electrically isolated from the guide rail (50, 70, 77) or that two or more busbars (60, 61, 62, 63, 64, 66, 67) against each other and / or with respect to the guide rail (50, 70, 77) are electrically isolated. Sliding element arrangement (1) according to Claim 15 or 16 , characterized in that on the guide rail (50, 70, 77) a single sliding element (2) with a single photovoltaic module (10) is guided, that a positive terminal (15.1) of the photovoltaic module (10) with a first contact element and a negative Connection (15.2) is connected to a second contact element and that the first contact element at least along a portion of the sliding movement of the sliding element (2) in an electrically conductive, sliding or electrically conductive, rolling contact with a busbar (60, 61, 62, 63, 64, 66, 67) and the second contact element at least along a portion of the sliding movement of the sliding element (2) in an electrically conductive, sliding or electrically conductive, rolling contact with another busbar (60, 61, 62, 63, 64, 66, 67) stands. Sliding element arrangement (1) according to one of Claims 15 to 17 characterized in that negative terminals (15.2) of a plurality of photovoltaic modules (10) of one or more sliding elements (2) at least along a portion of the sliding movement of the respective sliding element (2) via one or more of the contact elements with a common busbar (60, 61, 62 , 63, 64, 66, 67) and that positive connections (15.1) of the plurality of photovoltaic modules (10) at least along a portion of the sliding movement of the respective sliding element (2) via at least one contact element each having a separate busbar (60, 61, 62, 63, 64, 66, 67) or that positive connections (15.1) of several photovoltaic modules (10) of one or more sliding elements (2) at least along a portion of the sliding movement of the respective sliding element (2) via one or more of Contact elements with a common busbar (60, 61, 62, 63, 64, 66, 67) are electrically connected and that negati ve connections (15.2) of the plurality of photovoltaic modules (10) at least along a portion of the sliding movement of the respective sliding element (2) via at least one contact element each having a separate busbar (60, 61, 62, 63, 64, 66, 67) are connected , Sliding element arrangement (1) according to one of Claims 15 to 18 , characterized in that the at least one busbar (60, 61, 62, 63, 64, 66, 67) along the entire adjustment range of the at least one contact element when moving the associated sliding element (2) or that the at least one busbar (60, 61, 62, 63, 64, 66, 67) or electrically connected sections of at least one busbar (60, 61, 62, 63, 64, 66, 67) in end positions and / or or in separate intermediate positions along the adjustment range of the at least one contact element during displacement of the associated sliding element (2) is arranged. Sliding element arrangement (1) according to Claim 19 , characterized in that the at least one sliding element (2) in the end positions and / or in the separate intermediate positions can be locked. Sliding element arrangement (1) according to one of Claims 15 to 20 , characterized in that the at least one contact element as a guide roller (41, 44) or as a contact pin (92) or as a contact blade (95.1, 95.2, 95.3, 97.1, 97.2) is formed. Sliding element arrangement (1) according to one of Claims 15 to 21 , characterized in that at least two contact elements on a common carrier (holding arm (40), sliding parts (90, 94, 96)) are fixed and that the carrier is electrically insulating or that the contact elements are electrically insulated from the carrier. Sliding element arrangement (1) according to one of Claims 15 to 22 , characterized in that the at least one sliding element (2) by means of at least one roller on the at least one guide rail (50, 70, 77) is displaceably mounted, preferably that the at least one sliding element (2) by means of at least one guide roller (41, 44) , which rests on the at least one busbar (60, 61, 62, 63, 64, 66, 67) and rolls, is slidably mounted. Sliding element arrangement (1) according to one of Claims 15 to 23 , characterized in that the at least one sliding element (2) with at least one rotary-sliding element (80) linearly displaceable and about a transversely to the direction of the sliding element (2) aligned pivot axis pivotally mounted on the at least one guide rail (50, 70, 77) is. Sliding element arrangement (1) according to one of Claims 15 to 24 , characterized by a sliding element (2) according to one of Claims 1 to 14 ,

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