DE102019124375A1 - Solar glazing assembly and method of making a solar glazing assembly - Google Patents

Abstract

The invention relates to a solar glazing assembly for installation in a building as a facade, window or roof element, having a thin-film solar module (1) with a glass carrier (11) with a device side surface and a rear surface, one on the device side surface of the glass carrier (11) arranged solar cell arrangement (12), and a cover glass (13) which is arranged such that the glass carrier (11) and the cover glass (13) surround the solar cell arrangement (12) like a sandwich, - a pane (2), - a spacer (3 ), which is arranged between the pane (2) and the rear surface of the glass carrier (11), and a junction box (4) which is electrically connected to the solar cell arrangement (12) via a contact strip (42) Invention a method for the production of a solar glazing assembly for installation in a building as a facade, window or roof element, having the following steps: providing a thin-film sol armoduls (1) with a glass carrier (11) with a device side surface and a rear surface, a solar cell arrangement (12) arranged on the device side surface of the glass carrier (11), and a cover glass (13) which is arranged such that the glass carrier (11) and the cover glass (13) surrounds the solar cell arrangement (12) like a sandwich, providing a pane (2), arranging a spacer (3) between the pane (2) and the rear surface of the glass carrier (11), and electrically connecting the solar cell arrangement (12) with a junction box (4) via a contact strip (42).

Description

The invention relates to a solar glazing assembly and a method for manufacturing a solar glazing assembly. In particular, the invention relates to a solar glazing assembly and a method for producing a solar glazing assembly which is provided for installation in a building as a facade, window or roof element. The solar glazing assembly is to be used as a BIPV (building-integrated photovoltaic) or building-integrated photovoltaic. As a result, a photovoltaic power generation system can be integrated directly into a building, so that a component that is already present on the building, such as a window pane, a glass roof or the like, can be used to generate electricity. The solar glazing assembly thus combines several functions, which can save costs and components.

From the DE 20 2008 003 967 U1 an assembly of insulating glass with a solar photovoltaic cell is known which has two panes between which a thin-film battery is arranged as a solar photovoltaic cell, which is glued to one of the two panes. However, this assembly is complex to build.

The object of the invention is to provide a solar glazing assembly and a method for manufacturing a solar glazing assembly with an easily manufacturable solar glazing assembly.

The object is achieved by a solar glazing assembly with the features of claim 1 and a method with the features of claim 11. Advantageous refinements and developments of the invention emerge from the following subclaims.

• - ein Dünnschichtsolarmodul mit einem Glasträger mit einer Vorrichtungsseitenoberfläche und einer Rückseitenoberfläche, einer auf der Vorrichtungsseitenoberfläche des Glasträgers angeordneten Solarzellenanordnung, und einem Deckglas, das derart angeordnet ist, dass der Glasträger und das Deckglas die Solarzellenanordnung sandwichartig umgeben,
• - eine Scheibe,
• - einen Abstandshalter, der zwischen der Scheibe und der Rückseitenoberfläche des Glasträgers angeordnet ist, und
• - eine Junction-Box, die mit der Solarzellenanordnung über ein Kontaktband elektrisch verbunden ist.

The invention relates to a solar glazing assembly for installation in a building as a facade, window or roof element

• a thin-film solar module with a glass carrier with a device side surface and a rear surface, a solar cell arrangement arranged on the device side surface of the glass carrier, and a cover glass which is arranged in such a way that the glass carrier and the cover glass surround the solar cell arrangement like a sandwich,
• - a disk,
• a spacer disposed between the pane and the back surface of the glass substrate, and
• - A junction box which is electrically connected to the solar cell arrangement via a contact strip.

A thin-film solar module that has already been manufactured is connected to a pane via a spacer and is electrically connected to a junction box. The solar glazing assembly is easy to manufacture because all the necessary components are prefabricated and only need to be put together. No production lines need to be changed. A solar multiple glazing assembly is provided, for example in the form of a solar dual glazing assembly.

In a preferred embodiment, the solar glazing assembly also has a further pane and a further spacer which is arranged between the pane and the further pane on a side of the pane opposite the thin-film solar module. This provides a triple glazing assembly.

The junction box is preferably arranged on an end face of the thin-film solar module. The end face preferably extends perpendicularly or essentially perpendicularly to the device side surface and to the rear side surface of the thin-film solar module. The junction box is, for example, soldered and / or welded to the thin-film solar module, in particular the cover glass and the glass carrier. The junction box is also referred to as a junction box and has a housing in which a contact for electrically connecting the solar cell arrangement, a cable connection, diodes and / or bypass diodes are arranged. The cable connection is connected to a cable, so that current generated by the solar cell arrangement can be dissipated.

In a preferred embodiment, one end of the pane and / or the further pane is flush with a surface of the junction box facing away from the glass carrier. As a result, the junction box is not arranged in front of the solar cell arrangement, so that the incidence of light on it is not hindered. In addition, this creates a space for cable routing from the cable of the junction box, which is covered by the junction box and the pane (s). This space serves as a placeholder for the junction box cable. The flush arrangement also facilitates the arrangement of a frame surrounding the composite formed from the thin-film solar module, the pane and, if applicable, the further pane and the junction box.

The materials selected for the pane and the further pane, which are preferably transparent, are, for example, materials from the group consisting of colored and uncolored glasses, colored and uncolored, rigid, clear plastics. The material is preferably selected from colored and uncolored glasses. The colored and uncolored glass is preferably selected from the group consisting of colored and uncolored, non-tempered, partially tempered and tempered glass, for example float glass, cast glass or ceramic glass. The pane and / or the further pane is particularly preferably designed as float glass. The pane (s) can be provided with a coating, for example a barrier layer against vapor diffusion. The pane and / or the further pane can alternatively preferably be designed as ESG (toughened safety glass). ESG consists of a single, heat-treated pane that is manufactured in accordance with EN12150-1, which means that the glass has increased impact and impact resistance compared to normal float glass. The cover glass and / or the gas carrier are also preferably formed from the above materials.

In a preferred embodiment, the spacer and / or the further spacer is formed from a polymeric or metallic base body. The base body is more preferably a polymeric base body. The base body is preferably designed as a hollow body profile, which is preferably arranged circumferentially between the thin-film solar module and the pane or the pane and the further pane. The hollow body profile is preferably filled with a desiccant in order to be able to absorb moisture. The metallic base body can be made of aluminum or stainless steel, for example. The polymer base body is preferably selected from the group consisting of: polyethylene (PE), polycarbonate (PC), polypropylene (PP), polystyrene (PS), polybutadiene, polynitrile, polyester, polyurethane (PU), polymethyl methacrylate, polyacrylate, polyamide, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), particularly preferably acrylonitrile-butadiene-styrene (ABS), acrylic ester-styrene-acrylonitrile (ASA), acrylonitrile-butadiene-styrene / polycarbonate (ABS / PC), styrene-acrylonitrile (SAN), PET / PC, PBT / PC and / or copolymers or mixtures thereof.

In a preferred embodiment, the solar glazing assembly also has one or more sealing means, which are each arranged adjacent to the spacer and / or to the further spacer. As a result, the penetration of moisture into a space between the panes formed between the glass carrier and the pane and / or the pane and the further pane can be prevented or at least reduced. A suitable sealant in the form of a sealing layer is, for example, butyl, in particular as a butyl tape or strip. The one or more sealing means is or are arranged at least on an outer wall of the spacer and / or of the further spacer. The outer wall points away from the space between the panes. For example, the butyl is designed as a butyl strip which has a width in the range from 5 to 15 mm.

In a preferred embodiment, the spacer and / or the further spacer is formed from a layer of thermoplastic material. A desiccant can be incorporated into the thermoplastic material. This allows the spacer to absorb moisture. The layer of thermoplastic material is arranged flat between the glass support and the writing and / or between the pane and the further pane. The thermoplastic material PVB (polyvinyl butyral) is preferred. PVB has a splinter-binding effect and high tear resistance, and is therefore ideally suited as an intermediate layer between two panes. PVB is arranged as an intermediate layer between the pane and the glass carrier and / or the pane and the further pane, so that these each form a laminated glass.

In a preferred embodiment, the solar glazing assembly also has a frame which is arranged circumferentially around a composite formed from the thin-film solar module, the pane and the junction box and possibly the further pane. The junction box and its associated cables can be easily hidden in the frame so that they are hidden from view. As a result, the solar glazing assembly can also be designed to be openable when integrated into a building.

The solar glazing assembly preferably also has a sealing material jacket which at least partially covers the contact strip in a boundary area between the junction box and the solar cell arrangement. This allows moisture to be kept away from the contact strip.

Depending on the design of the spacer and / or the further spacer, a space between the panes is formed between the glass carrier of the thin-film solar module and the pane and / or between the pane and the further pane. This is the case when the spacer or the further spacer is designed as a hollow body profile which is arranged circumferentially between them. The space between the panes can be hermetically sealed or not hermetically sealed. The space between the panes is preferably a hermetically sealed space. This is realized by a corresponding choice of materials of the spacer and / or the further spacer or these materials are provided with corresponding coating (s).

A space between the panes delimited by the thin-film solar module, the pane and possibly the further pane and the spacer can be filled with air. This is advantageous if the space between the panes is not hermetically sealed. Alternatively, the space between the panes can be evacuated. The space between the panes is preferably hermetically sealed and filled with an inert gas, for example a noble gas such as argon or krypton. The disk and the further disk are preferably at a distance from one another which is in the range of 10 to 15 mm when the space between the disks is present.

The solar glazing assembly preferably has dimensions of 1,000 to 1,800 mm × 700 to 1200 mm. The solar cell arrangement preferably has dimensions in the range from 950 to 1750 mm × 650 to 1150 mm. The junction box preferably has dimensions in the range from 5 to 15 mm × 5 to 15 mm. The cover glass preferably has a thickness in the range from 4 to 10 mm, while the glass carrier preferably has a thickness in the range from 2 to 5 mm. The disk and / or the further disk preferably has a thickness in the range from 2 to 7 mm. A thickness of the contact strip is preferably in the range from 2 to 7 mm. The junction box preferably has dimensions in the range from 0.5 × 0.5 to 2.0 × 2.0 cm.

The pane is preferably designed as ESG if the spacer is designed as a layer made of thermoplastic material. The pane is preferably designed as float glass if the spacer is designed as a hollow body profile. If the spacer is designed as a hollow body profile which is arranged circumferentially between the thin-film solar module and the pane, the solar cell arrangement is preferably arranged on the device side surface in an area that is opposite an area of the rear side surface that is free of spacers. As a result, a reduction in heat can be achieved within the space between the panes. The solar cell arrangement preferably has CIGS solar cells.

• - Bereitstellen eines Dünnschichtsolarmoduls mit einem Glasträger mit einer Vorrichtungsseitenoberfläche und einer Rückseitenoberfläche, einer auf der Vorrichtungsseitenoberfläche des Glasträgers angeordneten Solarzellenanordnung, und einem Deckglas, das derart angeordnet ist, dass der Glasträger und das Deckglas die Solarzellenanordnung sandwichartig umgeben,
• - Bereitstellen einer Scheibe,
• - Anordnen eines Abstandshalter zwischen der Scheibe und der Rückseitenoberfläche des Glasträgers, und
• - elektrisches Verbinden der Solarzellenanordnung mit einer Junction-Box über ein Kontaktband.

The invention also relates to a method for producing a solar glazing assembly for installation in a building as a facade, window or roof element, having the following steps

• Providing a thin-film solar module with a glass carrier with a device side surface and a rear surface, a solar cell arrangement arranged on the device side surface of the glass carrier, and a cover glass which is arranged in such a way that the glass carrier and the cover glass surround the solar cell arrangement like a sandwich,
• - Providing a disc,
• - Arranging a spacer between the pane and the rear surface of the glass carrier, and
• - electrical connection of the solar cell arrangement with a junction box via a contact strip.

Modifications and embodiments described for the thin-film solar module apply accordingly to the method for producing the thin-film solar module.

• 1a, b eine Querschnittsansicht einer bzw. Draufsicht auf eine Solar-Verglasungsbaugruppe gemäß einer ersten Ausführungsform;
• 2a, b eine Querschnittsansicht einer bzw. Draufsicht auf eine Solar-Verglasungsbaugruppe gemäß einer zweiten Ausführungsform;
• 3a, b eine Querschnittsansicht einer bzw. Draufsicht auf eine Solar-Verglasungsbaugruppe gemäß einer dritten Ausführungsform;
• 4a, b eine Querschnittsansicht einer bzw. Draufsicht auf eine Solar-Verglasungsbaugruppe gemäß einer vierten Ausführungsform; und 5 eine Querschnittsansicht einer Solar-Verglasungsbaugruppe gemäß einer fünften Ausführungsform.

The invention is explained below on the basis of exemplary embodiments with reference to the figures. The following are shown schematically and not to scale:

• 1a, b a cross-sectional or top view of a solar glazing assembly according to a first embodiment;
• 2a, b a cross-sectional or top view of a solar glazing assembly according to a second embodiment;
• 3a, b a cross-sectional or top view of a solar glazing assembly according to a third embodiment;
• 4a, b a cross-sectional or top view of a solar glazing assembly according to a fourth embodiment; and 5 Figure 4 is a cross-sectional view of a solar glazing assembly in accordance with a fifth embodiment.

1a Figure 12 shows a cross-sectional view of a solar glazing assembly according to a first embodiment. The solar glazing assembly includes a thin film solar module 1 with a glass slide 11 having a device side surface (not shown) and a back surface (not shown), one on the device side surface of the glass slide 11 arranged solar cell arrangement 12th and a cover slip 13th on, which is arranged such that the glass carrier 11 and the cover slip 13th the solar cell array 12th sandwiched. Between the solar cell array 12th and the cover slip 13th is also a laminate in the form of a plastic film 14th for example made of EVA (ethylene-vinyl acetate copolymer) and another plastic film 15th arranged for example in the form of PVB (polyvinyl butyral).

The solar glazing assembly also includes a pane 2 and another slice 5 on, being the disc 2 between the thin-film solar module 1 and the other disc 5 is arranged.

The solar glazing assembly also has a spacer 3 on that between the disc 2 and the back surface of the glass slide 11 is arranged circumferentially, and a further spacer 6th on that between the disc 2 and the other disc 3 is arranged circumferentially. The spacer 3 and the further spacer 6th are each designed as hollow body profiles. The solar glazing assembly also includes several sealants 7th on, each adjacent to the spacer 3 and another spacer 6th are arranged. The sealants 7th are designed, for example, as butyl tape attached to an outer wall (not shown) of the spacer 3 or the further spacer 3 are arranged.

Between the thin-film solar module 1 and the disc 2 as well as the disc 2 and the other disc 5 there is a space between the panes 9 , which is filled with argon, for example.

The solar glazing assembly also has a junction box 4th on that with the solar cell array 12th via a contact band 42 is electrically connected. The contact band 42 is covered with a sealing material 43 encased. The junction box 4th has a housing 44 on from which the contact band 42 to the solar cell array 12th is led. The junction box also has a cable 41 on to from the solar array 12th to be able to dissipate generated electricity. An end 21 the disc 2 and an end 51 the other disc 5 are flush with one of the glass support 11 facing away from the surface of the junction box 4th .

The solar glazing assembly is arranged in a building (not shown) in such a way that light hits the thin-film solar module in the direction of the arrow 1 occurs.

1b shows a top view of the in 1 a shown solar glazing assembly according to the first embodiment. The contact band 42 , the sealing material casing 43 is omitted for the sake of clarity, extends out of the junction box 4th into one through the solar cell array 12th formed active surface and contacts it. The one from the glass slide 11 facing away from the surface of the junction box 4th is with the end 21 the disc 2 flush.

2a Figure 13 shows a cross-sectional view of a solar glazing assembly according to a second embodiment. In the 2a Solar glazing assembly shown corresponds to that in 1a Solar glazing assembly shown except that it does not have another pane 5 and no further spacer 6th including the appropriate sealant 7th has and that the end 21 the disc 2 not with that of the glass slide 11 facing away from the surface of the junction box 4th is flush.

2 B shows a top view of the in 2a shown solar glazing assembly according to the second embodiment. In the 2 B The top view of the solar glazing assembly shown corresponds to that of FIG 1b shown solar glazing assembly with the difference that the end 21 the disc 2 not with that of the glass slide 11 facing away from the surface of the junction box 4th is flush.

3a Figure 12 shows a cross-sectional view of a solar glazing assembly in accordance with a third embodiment. In the 3a Solar glazing assembly shown corresponds to that in 1a solar glazing assembly shown with the difference that the spacer 3 is designed as a flat layer between the rear surface of the glass carrier 11 and the disc 2 is arranged so that between the glass carrier 11 and the disc 2 no space between the panes is formed, and that the end 21 the disc 2 and the end 51 the other disc 5 not with that of the glass slide 11 facing away from the surface of the junction box 4th are flush.

3b shows a top view of the in 3a shown solar glazing assembly according to the third embodiment. In the 3b The top view of the solar glazing assembly shown corresponds to that of FIG 2 B solar glazing assembly shown.

4a Figure 13 shows a cross-sectional view of a solar glazing assembly in accordance with a fourth embodiment. In the 4a Solar glazing assembly shown corresponds to that in 2a solar glazing assembly shown with the difference that the spacer 3 flat layer is formed between the rear surface of the glass substrate 11 and the disc 2 is arranged so that between the glass carrier 11 and the disc 2 no space between the panes is formed.

4b shows a top view of the in 4a shown solar glazing assembly according to the fourth embodiment. In the 4b The top view of the solar glazing assembly shown corresponds to that of FIG 2 B solar glazing assembly shown.

5 Figure 12 shows a cross-sectional view of a solar glazing assembly in accordance with a fifth embodiment. In the 5 Solar glazing assembly shown corresponds to that in 1a Solar glazing assembly shown with the difference that it continues to have a frame 8th has, which encircles one from the thin-film solar module 1 , the disc 2 and the junction box 4th and the other disc 5 formed composite is arranged.

List of reference symbols

1

Thin-film solar module

11

Glass carrier

12th

Solar cell array

13th

Cover slip

14th

Plastic film

15th

further plastic film

2

disc

21

The End

3

Spacers

4th

Junction box

41

electric wire

42

Contact tape

43

Sealing material coating

44

casing

5

another disc

51

The End

6th

another spacer

7th

sealant

8th

frame

9

Space between the panes

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was 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.

Patent literature cited

• DE 202008003967 U1 [0002]

Claims (11)

Solar glazing assembly for installation in a building as a facade, window or roof element, having - A thin-film solar module (1) with a glass carrier (11) with a device side surface and a rear side surface, a solar cell arrangement (12) arranged on the device side surface of the glass carrier (11), and a cover glass (13) which is arranged in such a way that the glass carrier ( 11) and the cover glass (13) surround the solar cell arrangement (12) like a sandwich, - a washer (2), - A spacer (3) which is arranged between the pane (2) and the rear surface of the glass carrier (11), and - A junction box (4) which is electrically connected to the solar cell arrangement (12) via a contact strip (42). Solar glazing assembly according to Claim 1 , characterized by a further pane (5) and a further spacer (6) which is arranged between the pane (2) and the further pane (5) on a side of the pane (2) opposite the thin-film solar module (1). Solar glazing assembly according to Claim 1 or 2 , characterized in that the junction box (4) is arranged on an end face of the thin-film solar module (1). Solar glazing assembly according to Claim 3 , characterized in that one end (21, 51) of the pane (2) and / or the further pane (5) is flush with a surface of the junction box (4) facing away from the glass carrier (11). Solar glazing assembly according to one of the preceding claims, characterized in that the pane (2) and / or the further pane (5) are formed from float glass. Solar glazing assembly according to one of the preceding claims, characterized in that the spacer (3) and / or the further spacer (6) is designed as a hollow body profile made of aluminum, stainless steel or plastic, which runs all the way between the pane (2) and the rear surface of the glass carrier (11) or the pane (2) and the further pane (5) is arranged. Solar glazing assembly according to one of the preceding claims, characterized by a sealing means (7) which is adjacent to the spacer (3) and / or to the further spacer (6) between the pane (2) and the rear surface of the glass carrier (11) or the Disc (2) and the further disc (5) is arranged is arranged. Solar glazing assembly according to any of the preceding Claims 1 to 5 , characterized in that the spacer (3) and / or the further spacer (6) is formed from a layer of thermoplastic material which is flat between the pane (2) and the rear surface of the glass carrier (11) or the pane (2 ) and the further disc (5) is arranged. Solar glazing assembly according to one of the preceding claims, characterized by a frame (8) which surrounds one of the thin-film solar module (1), the pane (2) and the junction box (4) and possibly the further pane (5). formed composite is arranged. Solar glazing assembly according to one of the preceding claims, characterized by a sealing material jacket (43) which at least partially surrounds the contact strip (42) in a boundary area between the junction box (4) and the solar cell arrangement (12). Method for producing a solar glazing assembly for installation in a building as a facade, window or roof element, comprising the following steps - Provision of a thin-film solar module (1) with a glass carrier (11) with a device side surface and a rear side surface, a solar cell arrangement (12) arranged on the device side surface of the glass carrier (11), and a cover glass (13) arranged in such a way that the glass carrier (11) and the cover glass (13) surround the solar cell arrangement (12) in a sandwich-like manner, - Providing a disc (2), - Arranging a spacer (3) between the pane (2) and the rear surface of the glass carrier (11), and - Electrical connection of the solar cell arrangement (12) to a junction box (4) via a contact strip (42).

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