WO2023284904A1 - Fotovoltaikdachsystem zum aufbau eines solarcarports sowie solarcarport - Google Patents
Fotovoltaikdachsystem zum aufbau eines solarcarports sowie solarcarport Download PDFInfo
- Publication number
- WO2023284904A1 WO2023284904A1 PCT/DE2021/100608 DE2021100608W WO2023284904A1 WO 2023284904 A1 WO2023284904 A1 WO 2023284904A1 DE 2021100608 W DE2021100608 W DE 2021100608W WO 2023284904 A1 WO2023284904 A1 WO 2023284904A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- supports
- photovoltaic
- roof system
- ground
- main
- Prior art date
Links
- 238000005452 bending Methods 0.000 claims description 38
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000969 carrier Substances 0.000 claims description 8
- 238000006880 cross-coupling reaction Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
- E04H6/02—Small garages, e.g. for one or two cars
- E04H6/025—Small garages, e.g. for one or two cars in the form of an overhead canopy, e.g. carports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
- F24S20/67—Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of roof constructions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
- F24S25/12—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface using posts in combination with upper profiles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/20—Supporting structures directly fixed to an immovable object
- H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
- H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/20—Collapsible or foldable PV modules
Definitions
- the invention relates to a photovoltaic roof system for constructing a solar carport according to the preamble of claim 1 and a solar carport constructed by means of the photovoltaic roof system.
- the photovoltaic roof system is suitable e.g. for setting up solar carports in the parking areas of shopping centers and residential complexes, in employee car parks, in Park & Ride zones and in long-term parking areas at airports.
- Solar roofs for generating electrical energy are regularly formed by several photovoltaic panels and are used in many areas.
- the respective solar roof is intended to be a closed roof area for rainproof roofing at the same time, i.e. below the individual photovoltaic panels - apart from a supporting structure - there should be no other closed roof or sealing structure
- solar roofs often form part of a carport , a shelter for folds, etc..
- Such a carport or such a shelter thus have a substructure on which the photovoltaic panels are attached to form the closed roof surface.
- the photovoltaic panels are used regularly to generate electricity for electrical systems located in the area, such as parking ticket or ticket machines or - particularly interesting for advancing electromobility - charging stations for electric vehicles.
- DE 102009043779 A1 shows a steel frame for a photovoltaic system that can be used as a carport.
- a carport whose photovoltaic panel roof can be tilted according to the sun was disclosed in AT 518613 A1.
- a cost-effective and, in view of the assembly aspect, is simple and preferably lightweight construction.
- WO 2020/052711 A1 describes a solar roof system whose roof surfaces are formed from photovoltaic panels that meet these requirements. As a result of Due to the lightweight construction and the high load-bearing capacity of the photovoltaic panels, this solar roof system cannot be set up in all locations without restriction due to the weather. Especially at locations where high wind and snow loads occur regularly, the known foundations are sometimes not sufficient.
- photovoltaic roof system is understood here and in the following in particular to mean a kit that is set up and provided for the construction or assembly of the solar carport according to the invention.
- the solar carport according to the invention is therefore formed from the photovoltaic roof system described here and below.
- the photovoltaic roof system for constructing a solar carport has a roof surface that includes a predetermined number of photovoltaic panels.
- the photovoltaic roof system also has at least two main supports, each formed from a closed hollow profile. These are each bent in a bending area without kinks by less than 90 degrees and more than 60 degrees, with the hollow profile of the bent main beam each lying within a bending plane. Furthermore, the main beam has at least one straight beam leg which adjoins the bending region and serves to support the roof surface. The bending planes of all main beams are arranged parallel to each other when the photovoltaic roof system is installed as intended.
- the photovoltaic roof system - assigned to each of the main carriers - comprises at least two framework elements and a roof carrier, by means of which the respective main carrier is braced on the convex side (or the outside of the bend) of its bending area when the photovoltaic roof system is installed as intended. That is, the truss elements and the roof girder serve to support the main girder and in particular the girder leg against deformation under the load of the roof surface.
- the photovoltaic roof system also has at least two elongated vertical panel supports, which are aligned parallel to the bending planes of the main supports when the photovoltaic roof system is installed as intended, for holding and tightly connecting the photovoltaic panels.
- the photovoltaic roof system also includes at least four ground screws serving as the foundation and at least two foundation adapters for attaching the main girders to the ground screws.
- each of the foundation adapters is a ground anchor rail which is mirror-symmetrical to its longitudinal center and which is aligned or arranged in the intended state of the photovoltaic roof system in the bending plane of the main beam or main beams fastened to it.
- This ground anchor rail has an elongated ground anchor bar formed from a closed hollow profile, at least one standpipe socket, two stiffening ribs, two side supports and two anchor screw connections.
- the standpipe socket or sockets branch off vertically on the ground anchor beam. Each of the standpipe sockets is used to accommodate and lock each egg nes of the main beam.
- One of the stiffening ribs in the gusset between the respective standpipe socket and the ground anchor beam is attached to each of the jacket sides pointing to the end regions of the floor anchor beam.
- the two structurally identical side beams, each formed from an H-profile, are mirror-symmetrically attached to the two end regions of the ground anchor beam.
- One of the anchor screw connections is assigned to each of the two side supports, which is used for the detachable connection of the respective side support to one of the ground screws.
- the H-profile center bars of the side members are aligned perpendicularly to the standpipe socket and each have a through hole to accommodate the anchor screw connection.
- Each of the anchor screw connections includes (in addition to the usual bolt or screw) at least two nuts, which after attaching the anchor screw connection to the H-profile center bar of the side member on both sides of the respective H-profile center bar.
- the anchor bolting is attached directly or indirectly to the ground bolt by means of an adapter plate.
- this is flanged to the ground bolt by means of an adapter bolting and then the adapter plate is attached via the anchor bolting to the side supports of the Ground anchor rail attached.
- the adapter plates and the adapter screw connections are optional supplementary components of the photovoltaic roof system.
- the main beams of the solar carports formed according to the invention from the described photovoltaic roof system are parallel to one another with respect to their bending planes and aligned perpendicularly with their respective bottom end area on the subsoil.
- the carrier legs are consequently aligned at more than 90 degrees and less than 120 degrees with respect to the perpendicular or at more than 0 degrees and less than 30 degrees with respect to the horizontal, ie, for example, with respect to the ground.
- Each of the girder legs is braced by means of the at least two framework elements and the roof girder on the convex side of the bending area of the respective main girder.
- Each of the main beams is also spaced apart from each other by two ground anchor rails aligned in the bending plane of this main beam Ground screws embedded in the ground is fastened.
- Each of the side supports of the ground anchor rail is mounted on the ground screw assigned to it by means of the nuts of the anchor screw connection resting on both sides on the H-profile central web of the side support.
- the photovoltaic roof system according to the invention and the solar carport that can be installed easily and quickly from it are characterized by high mechanical stability despite the lightweight construction.
- the solar carport can therefore be set up in locations with high wind and snow loads due to the weather.
- the components of the photovoltaic roof system can be transported to the installation site using common means of transport, saving space and costs.
- the assembly - as well as the disassembly - can be carried out with the usual specialist staff; There are also no exceptional requirements with regard to the required tool and equipment technology - mainly due to the lightweight construction.
- the floor anchor rail according to the invention can be positioned at a desired height on the bolt by means of the two anchor bolts or by means of the two nuts of the anchor bolts applied to the side support. This makes it possible to adjust the ground anchor rail horizontally and consequently to align the ground-side end area of the main beam vertically during assembly.
- the distance between the bores of the two through-holes provided for the anchor screw connection in the side supports of the ground anchor rail is in the range of 1.7 meters to 2.3 meters. Accordingly, the preferred distance between the two ground screws fastened to one of the ground anchor rails by means of the anchor screw connections is also 1.7 meters to 2.3 meters.
- the vertical panel supports used to hold and tightly connect the photovoltaic panels are aligned parallel to the bending planes of the main supports.
- the single ones Photovoltaic panels are preferably profiled by means of the vertical panel support on mounting, each running transversely to the main beams attached.
- the photovoltaic panels are framed.
- this double T-profile has two opposite receiving slots (or receiving grooves) for inserting the framed photovoltaic panels.
- One of the two partial T-profiles of this double T-profile has a serif-like supporting web at the two end regions of its T-crossbar. When it is pushed into one of the slots, the framed photovoltaic panel rests on the supporting web of the double-T profile and is clamped to the opposite T-crossbar.
- These vertical sealing profiles of the photovoltaic roof system are preferably extruded profiles made of a monolithic elastomer; the elastomer can be, for example, a rubber, an ethylene propylene diene rubber (EPDM) or a thermoplastic elastomer (TPE).
- EPDM ethylene propylene diene rubber
- TPE thermoplastic elastomer
- the vertical panel supports assigned to one of the roof surfaces are aligned parallel to one another and to the bending planes of the main supports.
- the photovoltaic panels are held in the receiving slots of the double T-profiles of the vertical panel supports, lying on the support webs and being clamped in the receiving slots by means of the vertical sealing profiles.
- the vertical panel supports are also used for (concealed) routing of connecting cables and/or for draining off dripping water.
- Vertical panel supports also have a drip tray and guide trough running in the longitudinal direction.
- the main beams each extend from the foundation to the ridge, i. H. the highest point of the respective roof surface.
- the main beams each extend from the foundation to the ridge, i. H. the highest point of the respective roof surface.
- the main supports are preferably made in one piece.
- the one-piece main beams are characterized by a favorable force distribution and the associated particularly high load-bearing capacity.
- the main beams can also be made in two pieces with a plug-in connection, with almost the same load-bearing capacity being achieved as that of the one-piece main beam.
- this also has a cross brace, which is used for the cross-coupling of two main beams set up parallel to one another with respect to their bending planes at a distance.
- this cross brace is formed integrally by one of the mounting profiles, which spans the two main beams arranged parallel to one another to hold the respective roof surface (or the photovoltaic panels forming the roof surface).
- the roof rack preferably rests on the rack leg of the respective main carrier and protrudes over the bending area.
- the roof rack is a U-shaped profile that is placed on the support leg and encompasses it laterally by means of its two parallel U-legs.
- the truss elements assigned to one of the main girders as well as the roof girder assigned to this main girder are preferably connected to the main girder by screw connections.
- the main beams, roof beams and/or framework elements are preferably made of metallic materials, in particular aluminum materials.
- the closed hollow profile of the main carrier is in each case a circular tube profile, the tube wall thickness of which is in the range from 5 mm to 7.5 mm.
- the main beam preferably has a bending radius of at least 2 meters, in particular 2.4 meters, in its bending area. This comparatively large bending radius enables a uniform introduction of force from the beam's limb over the bending area into the foundation.
- the main beams preferably have a span of at least 5 meters in the bending plane. This span is measured using the length projected onto the horizontal when the respective main girder is installed as intended and thus extends from a “ridge-side” end (i.e. the highest in the intended erection state) of the girder leg to the bottom end of the main girder.
- the solar carport formed from the photovoltaic roof system preferably has a ridge height of at least 3 meters, in particular 3.5 meters, preferably 4.2 meters, and an eaves height of at least 2.5 meters, in particular at least 2.7 meters.
- Each of the ground screws has a preferred length of at least 2 meters. Using these ground screws, the respective foundation can be formed comparatively easily and in a short time.
- the ground anchor rail has two standpipe sockets arranged next to one another in a row in the longitudinal extension of the ground anchor rail.
- this includes an even number of main carriers, each in carrier groups two main beams are grouped, several roof surfaces and the Bodenankerschie NEN according to the embodiment described above, ie the Bodenankerschie NEN with two standpipe sockets arranged side by side in a row.
- the solar car port formed on the basis of this embodiment of the photovoltaic roof system has two main carriers within a carrier group, the Biegeebe nen cover and the carrier legs point away from each other.
- the two main girders of the girder group are each coupled to one another by means of the truss elements and the roof girder for mutual bracing.
- the main girders of different girder groups are arranged at a distance parallel to one another with respect to their bending planes.
- One of the roof surfaces is mounted on the parallel girder legs of the main girders and neighboring groups of girders.
- the two main beams of a carrier group are each fixed in a common ground anchor rail, with each of the two main beams being attached to one of the standpipe sockets.
- the solar carport formed in this way therefore has at least four main beams and at least two roof areas.
- the roof surfaces meet at their eaves, resulting in a butterfly roof or "Y roof”.
- This design of the solar carport can be expanded with additional main beams (i.e. to four, six, eight or similar roof areas).
- the photovoltaic roof system can also have a vertical support assigned to each of the main beams, on which the respective main beam is braced towards the ground when constructed as intended.
- This vertical support is preferably coupled to the main beam and/or to the foundation adapter in the area of the bottom end and is thus (directly or indirectly) connected to the ground.
- the vertical support can be anchored in the ground using an additional, separately assigned foundation adapter.
- the vertical support can be designed as a U-profile or as a round tube, for example.
- the photovoltaic roof system is preferably equipped with an inverter and/or a transformer for the electricity generated by the photovoltaic panels, so that the photovoltaic roof system forms a photovoltaic installation.
- the photovoltaic roof system also has a charging station for electric vehicles. This charging station is optionally connected to the inverter or transformer.
- the inverter, the transformer and/or the charging station are preferably arranged at a height of about 1.7 meters.
- the photovoltaic roof system also has a heat pump or a connection point to one.
- Fig. 1 the solar carport formed from the photovoltaic roof system in two perspective views
- Fig. 2 the ground anchor rail of the photovoltaic roof system with the attached ground screws in a perspective view
- Fig. 3 the ground anchor rail of the photovoltaic roof system in a perspective view
- Fig. 4 the ground anchor rail of the photovoltaic roof system with the attached ground screws in three partial views
- Fig. 5 the connection of the ground anchor rail with the ground screw in a perspective view
- Fig. 6 the substructure of the solar carport formed from the photovoltaic roof system in a perspective overview view and two perspective detailed views,
- Fig. 7 the roof surface of the photovoltaic roof system during installation in a perspective view
- Fig. 8 perspective view of the installation of the photovoltaic panels in the vertical panel supports
- Fig. 9 the clamping of the photovoltaic panels in the vertical panel supports in a perspective view
- Fig. 10 the clamping of the photovoltaic panels in the vertical panel supports in cross-sectional view.
- the self-supporting solar carport formed from the photovoltaic roof system according to the invention according to FIG. 1 has the photovoltaic panels 1 forming the two roof surfaces, which are only shown in the partial view of FIG. 1(a).
- the substructure of the solar carport supporting the photovoltaic panels 1 illustrates the partial view of FIG. 1 (b).
- the photovoltaic roof system or the solar carport formed from it has the Flaupt naval 2, the roof rack 3 and the fratechnikele elements 4 as the supporting basic elements.
- the embodiment of the solar car ports shown in FIG. 1 as a butterfly roof two of the Flaupt carriers 2 are connected to one another by the roof carrier 3 and the truss elements 4 in each case in a common carrier group.
- the two flap supports 2 of a respective support group are fastened to the common ground anchor rail 5 , which in turn is connected to one of the ground screws 6 at each of its end regions via the adapter plate 8 .
- the ground screw 6 is let into the ground as its foundation when the solar carport is installed.
- the photovoltaic panels 1 are - held in a frame made of intersecting profiles - as part of the substructure. Parallel to the bending planes of Flauptango 2 extend the vertical panel carrier 18 with the associated vertical seal profiles 19; The mounting profiles 14, the U-profiles 15 and the horizontal panel supports 16 with the horizontal sealing profiles 17 assigned to them are arranged transversely to the bending planes of the flap supports 2. On the outer edge of the frame, the United are cladding 11 and the frame seals 20 attached.
- the three groups of carriers of the solar carport shown in FIG. 1 are also central ver through the cross braces 13, the rain gutter 12 and the cable duct 21 connected.
- a downpipe 22 is also attached to each carrier group.
- the ground anchor rail 5 is fastened to the adapter plate 8 at each end by means of the screw anchor connection 7 and this in turn is fastened to the ground screw 6 by means of the screw adapter connection 9 .
- FIG. 3 shows the design of the ground anchor rail 5 with two standpipe sockets 5.3 arranged in a row. These two standpipe sockets 5.3 are supported via the stiffening ribs 5.4 on the ground anchor beam 5.1. At each end, the two side supports formed from an H-profile are attached to Bodenankerbal ken 5.2 5.1.
- FIGS. 4 and 5 The assembly of the ground anchor rail 5 in the embodiment according to FIG. 3 is illustrated in FIGS. 4 and 5.
- the partial view according to FIG. 4 (c) is a detailed view from FIG. Profile center bar of the side support 5.2 with the two nuts on both sides of the H profile center bar (over washers). These two nuts make it possible to adjust the floor anchor rail 5 in a fleeing and tilting manner (cf. arrow representation in FIG. 4 (a)).
- the anchor screw 7 is in the embodiment according to the partial view of FIG. 4 (c) directly (ie without adapter plate 8) to the ground screw 6 is being introduced.
- the anchor screw 7 allows in the context of the screw game - see the arrow in Fig. 4 (b) - a transverse and longitudinal position adjustment of Bo denankerschiene 5 during assembly.
- the connection of the ground anchor rail 5 to the ground screw 5 by means of the adapter plate 8 is shown in the detail view in FIG. the six adapters 9 each include a machine screw and a cap nut.
- FIG. 6 The substructure of the self-supporting solar carport according to FIG. 1 is shown in FIG. 6 without the photovoltaic panels 1 and without the frame that supports them.
- the partial view of FIG. 6 (a) illustrates the structure of the three carrier groups, which are coupled to one another at the eaves via the gutter 12 .
- the U-profile shaped roof rack 3 each lie on the support leg 2.1 of one of the main carriers 2 ger.
- the truss strut between the two main beams 2 of a carrier group illustrates the partial view of Fig. 6 (c):
- the truss elements 4 and the Dachträ ger 3 are ver with the two main beams 2 by the screw connections 10 connected.
- the two bottom end portions of the two main beams 2 are - see the partial view of Fig. 6 (b) - bentheticen in the standpipe socket 5.3 also by means of screws 10 on the ground anchor rail 5 attached.
- FIGS. 7 to 10 The structure of the roof surface formed from the photovoltaic panels 1 and its assembly is shown in FIGS. 7 to 10.
- the individual components of the frame made up of intersecting profiles are illustrated in FIG. 7, in particular the arrangement of the mounting profiles 14, the U-profiles 15 and the horizontal panel carrier 16 and the horizontal sealing profiles 17.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/DE2021/100608 WO2023284904A1 (de) | 2021-07-12 | 2021-07-12 | Fotovoltaikdachsystem zum aufbau eines solarcarports sowie solarcarport |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/DE2021/100608 WO2023284904A1 (de) | 2021-07-12 | 2021-07-12 | Fotovoltaikdachsystem zum aufbau eines solarcarports sowie solarcarport |
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WO2023284904A1 true WO2023284904A1 (de) | 2023-01-19 |
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PCT/DE2021/100608 WO2023284904A1 (de) | 2021-07-12 | 2021-07-12 | Fotovoltaikdachsystem zum aufbau eines solarcarports sowie solarcarport |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009043779A1 (de) | 2009-09-30 | 2011-04-07 | Adensis Gmbh | Als Carport nutzbares Stahlgerüst für eine Photovoltaikanlage |
DE202016105226U1 (de) * | 2016-09-19 | 2016-10-06 | Premium Mounting Technologies GmbH & Co. KG | Carport |
AT518613A1 (de) | 2015-12-15 | 2017-11-15 | Carport & Holzbau Gmbh | Schwenkbares Photovoltaik-Carport |
GB2567707A (en) * | 2017-10-23 | 2019-04-24 | Inside2Outside Ltd | Roof support structure |
WO2020052711A1 (de) | 2018-09-11 | 2020-03-19 | Edelbert Schwarze | Solardachsystem |
-
2021
- 2021-07-12 WO PCT/DE2021/100608 patent/WO2023284904A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009043779A1 (de) | 2009-09-30 | 2011-04-07 | Adensis Gmbh | Als Carport nutzbares Stahlgerüst für eine Photovoltaikanlage |
AT518613A1 (de) | 2015-12-15 | 2017-11-15 | Carport & Holzbau Gmbh | Schwenkbares Photovoltaik-Carport |
DE202016105226U1 (de) * | 2016-09-19 | 2016-10-06 | Premium Mounting Technologies GmbH & Co. KG | Carport |
GB2567707A (en) * | 2017-10-23 | 2019-04-24 | Inside2Outside Ltd | Roof support structure |
WO2020052711A1 (de) | 2018-09-11 | 2020-03-19 | Edelbert Schwarze | Solardachsystem |
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