WO2024037897A1 - Structure de toit comprenant des modules photovoltaïques - Google Patents

Structure de toit comprenant des modules photovoltaïques Download PDF

Info

Publication number
WO2024037897A1
WO2024037897A1 PCT/EP2023/071736 EP2023071736W WO2024037897A1 WO 2024037897 A1 WO2024037897 A1 WO 2024037897A1 EP 2023071736 W EP2023071736 W EP 2023071736W WO 2024037897 A1 WO2024037897 A1 WO 2024037897A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate elements
support
roof structure
photovoltaic modules
roof
Prior art date
Application number
PCT/EP2023/071736
Other languages
German (de)
English (en)
Inventor
Tim Bröckelmann
Original Assignee
mygreen Holding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by mygreen Holding GmbH filed Critical mygreen Holding GmbH
Publication of WO2024037897A1 publication Critical patent/WO2024037897A1/fr

Links

Classifications

    • 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
    • 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
    • F24S25/30—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors
    • F24S25/33—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors forming substantially planar assemblies, e.g. of coplanar or stacked profiles
    • F24S25/35—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors forming substantially planar assemblies, e.g. of coplanar or stacked profiles by means of profiles with a cross-section defining separate supporting portions for adjacent modules
    • 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
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/63—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing modules or their peripheral frames to supporting elements
    • F24S25/634—Clamps; Clips
    • F24S25/636—Clamps; Clips clamping by screw-threaded elements
    • 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
    • F24S2020/10—Solar modules layout; Modular arrangements
    • F24S2020/13—Overlaying arrangements similar to roof tiles
    • 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
    • F24S2025/01—Special support components; Methods of use
    • F24S2025/022—Sealing means between support elements, e.g. overlapping arrangements; Gap closing arrangements
    • 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
    • F24S2025/80—Special profiles
    • F24S2025/804—U-, C- or O-shaped; Hat profiles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • H01L31/0521—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/42—Cooling means

Definitions

  • the invention relates to a roof structure with photovoltaic modules and a method for producing such a roof structure.
  • roof structure is generally used here for the arrangement of components in the roof area of a building.
  • the invention relates primarily to the roof covering or outer skin of the roof and the (supporting) structure immediately underneath and less to the supporting structure of the roof.
  • a known structure of sloping house roofs includes a roof formwork, usually supported by rafters, and roof covering supported on roof battens, usually made of overlapping roof tiles. This creates a closed cover that is tight against weather influences such as rain and wind.
  • DE 10034655 Ai describes a device for using solar energy, in which the cover of a roof is changed so that a free flow channel is created between two layers through which air heated by solar energy flows. This is achieved by having a double roof cover.
  • the covering facing the sun consists of glass roof tiles.
  • a radiation-absorbing layer can be formed as a photovoltaic layer.
  • WO 2019/168536 Ai describes the production of photovoltaic structures and in particular photovoltaic roof tiles. Solar cells are encapsulated under glass covers. Photovoltaic roof tiles can be arranged in an overlapping manner and connected laterally by spacers. The spacers can have a groove on the top that creates a visible gap between the roof tiles.
  • the DE 10 2008 026 505 Ai describes a solar module for a roof covering of a building roof with a photovoltaically active layer for transforming solar radiation into electrical energy, in which the thermal resistance of the solar module to a cooling medium on the underside of the photovoltaically active layer is reduced.
  • CH 703 472 Ai discloses a hybrid collector consisting of a photovoltaic module and a first and second heat exchanger space.
  • the first heat exchanger space has connections for the passage of a first heat transfer medium, which is in a heat-conducting connection with the photovoltaic module.
  • the second heat exchanger space has connections for the passage of a second heat transfer medium. This makes it possible to cool the photovoltaic module in different ways. There are particular advantages in combination with a combination heat pump, which can extract heat from both air and a liquid heat transfer medium.
  • EP3923468 Ai describes a method for increasing the energy yield of an already installed solar power plant with a first solar panel that absorbs sunlight in a first frequency band.
  • a semi-transparent second solar panel that absorbs light in a second frequency band is mounted on the first solar panel and connected to power electronics that includes at least one solar inverter.
  • the second solar panel allows at least some of the light from the first frequency band to pass through.
  • the roof structure according to the invention has parallel support channels and overlapping plate elements resting on them.
  • the plate elements preferably form the upper end of the roof skin and are therefore exposed without any further cover arranged above them.
  • the support channels have a channel shape with support areas for the plate elements, preferably with flat support areas on which the plate elements advantageously rest over their entire length, either directly or preferably with a seal in between.
  • the support areas are preferably located on opposite sides of the support channels.
  • the plate elements can be transparent covers, for example made of glass, in which case photovoltaic modules are arranged below the plate elements, preferably at a distance from the plate elements.
  • the plate elements themselves can be photovoltaic modules.
  • the two possible designs can also be combined if (partially or completely) transparent photovoltaic modules are used as panel elements.
  • An embodiment is possible in which a space protected by the transparent covers is formed below the plate elements, in which one or more photovoltaic modules are arranged.
  • An embodiment is preferred in which the plate elements themselves are photovoltaic modules, but a closed interior space is still formed underneath.
  • the support channels are constructed from aligned support channel sections, with ends of the support channel sections being arranged to overlap one another.
  • the arrangement of the support channel sections overlapping one another at the ends results in a stepped arrangement with which the plate sections, which in turn are arranged overlapping, elements are well held and supported and, in particular, full-surface contact and sealing on the supporting channels is made possible.
  • the overlapping arrangement of the support channel sections enables a firm connection and straight alignment due to the interlocking of the respective ends.
  • the support channel sections are preferably profiles of consistent shape throughout, preferably made of metal, for example aluminum or steel. Drawn profiles, (extruded) pressed profiles, rolled profiles or similar can be used; sheet metal profiles folded in a press bench are preferred.
  • the support channel sections are preferably at least essentially the same length (i.e. with a maximum of +/- 15% deviation), although larger deviations can also occur, particularly at the ends of the support channels.
  • the length of the support channel sections can be, for example, 30 - 200 cm, preferably 40 - 120 cm, particularly preferably 50 - 100 cm.
  • the dimensions determine the length of the panel elements (measured in the direction of the roof slope);
  • the above-mentioned length ranges have proven to be useful, although it is possible to deviate from this with different formats of plate elements.
  • the overlap section in which the front end of an upper support channel section is arranged to engage in the rear end of a lower support channel section, preferably has relative to the lower and/or or upper support channel section has a shorter length of less than 25%, preferably 15% or less, preferably 10% or less. In fact, even a small overlap of, for example, at least one centimeter is sufficient to achieve the desired stepped arrangement; an overlap length of, for example, 4 - 12 cm is preferred.
  • the plate elements rest on the support channels and are preferably secured there against shifting and lifting. For such security, they can in principle be attached to the support channels in various ways, for example by positive mounting, screwing, clamping, gluing or similar.
  • hold-down devices are arranged on the plate elements and connected to the support channels.
  • the plate elements are thus held at least from two opposite sides, namely on the underside by resting on the support areas and on the top by the hold-down devices.
  • the hold-down devices can, for example, be designed as flat elements such as plates, or preferably be elongated and extend in the longitudinal direction over the plate elements, preferably over their entire length.
  • the hold-down devices can include an angle that encompasses an edge of a plate element.
  • the hold-down devices are preferably arranged on the edge of the plate elements, for example. in the area of their corners.
  • the hold-down devices can have bevels at the ends with which aligned hold-down devices engage with one another.
  • an upper fold can be formed at an upper end, preferably still aligned at the top.
  • a lower fold can be formed at an opposite lower end, preferably directed downwards.
  • the folds can interlock.
  • One or both folds can be provided to rest against a lower edge of a plate element in order to support it against slipping.
  • the hold-down devices are preferably made of metal.
  • a flexible intermediate layer, for example a sealing material, is preferably arranged between the hold-down devices and the plate elements in order to enable the forces to be distributed over the contact surface and to avoid the risk of damage to the plate elements.
  • connection of the hold-down devices to the support channels can be made, for example, by a web, a wall or - preferably - by a tension rod, in particular threaded bolts.
  • a hold-down device can preferably be arranged in such a way that it engages over two adjacent plate elements and can thus fix both plate elements at the same time.
  • the hold-down devices are arranged in the area of the overlap of two support trough sections and to connect them there to the support trough, in particular to the upper one of the overlapping support trough sections.
  • the hold-down devices are preferably arranged adjacent to, but advantageously outside, the area of overlap of two support trough sections and connected there to the support trough.
  • the connection is preferably formed with the lower of the overlapping support channel sections, for example on a web fastened there to opposite side walls.
  • An adjacent arrangement is understood to mean that the hold-down device and/or a fastening element for it (such as a bolt or a screw) is arranged in the longitudinal direction of the support channel immediately in front of the overlap area or at a short distance (measured from the respective center of the hold-down device or fastening element to to the edge of the adjacent overlap area) of, for example, less than 10% of the length of the lower support channel section, preferably less than 5%, particularly preferably 3% or less. While it is possible to attach the hold-down device To provide an element penetrating the bottom of the support trough sections, such as a rod, the fastening preferably does not provide for any penetration of the wall of the support trough sections in order to maintain the tightness.
  • a fastening element for it such as a bolt or a screw
  • the support channel sections can in principle have different cross-sectional shapes, for example V-shaped. For the overlapping arrangement, stackability is required at least in the overlap area, but this can also be achieved by expanding if necessary. While the support channel sections can therefore, for example, be shaped differently in the overlap area than over the remaining length, they preferably have the same cross-sectional shape over their entire length, which is then preferably stackable. Particularly preferred is a trapezoidal cross-sectional shape of the support channel sections, ie a straight bottom from which straight side walls extend at oblique, outwardly directed angles. The cross-sectional shape is preferably symmetrical so that the angles on both sides are the same.
  • the angles are more than 90° and are preferably in the range of 95 0 - 130°, more preferably 100 - 120°, particularly preferably around no° (+/- 5 0 ).
  • the support areas can further preferably extend from the side walls as outwardly directed folds, preferably parallel to the floor.
  • the trapezoidal shape is particularly suitable because the support trough sections formed can be produced cheaply and precisely, have good stability and in particular the support trough sections can be easily arranged in a nested manner to produce the overlap.
  • the straight contact surfaces on the walls and floor can be easily sealed and/or fastened to one another if necessary.
  • the arrangement of the plate elements and the support channel sections is preferably such that a closed, preferably sealed interior space is formed below the plate elements.
  • the plate elements seal with the support areas of the support channel sections, for example by means of a precisely fitting flat contact or preferably by an intermediate seal, for example made of flexible sealing material.
  • the plate elements are also arranged in a sealing manner against one another in the overlap area, here too by means of a precisely fitting contact or - preferably - by interposed sealing elements made of flexible sealing material. So can the interior be sealed from the top, preferably with a seal at least against splash water, particularly preferably even at least essentially airtight or at least windproof.
  • Such a seal initially ensures that the roof is sealed against weather influences, such as wind and rain, but also allows a controlled air flow to be guided in the interior.
  • the air in the enclosed interior heats up when the sun shines on the roof, especially when the sun shines through transparent covers.
  • By specifically guiding the air in the interior it is possible to dissipate the heat, for example to use the heat for heating purposes or similar.
  • Another important aspect of air flow is setting a favorable temperature range in the interior for the function of the photovoltaic modules.
  • the photovoltaic modules which are either - preferably - arranged as plate elements part of the boundary of the interior or in the interior, are cooled in strong sunlight so that overheating can be avoided and the photovoltaic modules are in a favorable temperature range can be operated efficiently.
  • pipes can be provided for air guidance.
  • the pipes can also be part of the supporting structure for the supporting channels.
  • the support channels can be attached to cross tubes and the cross tubes can have openings on the top for the supply and removal of air from the interior.
  • a number of parallel cross tubes can be provided, each of which is alternately connected to supply and remove air from the interior, so as to enable circulation and constant removal of heated air.
  • the air can be routed through other forms of lines such as air ducts, hoses or pipes that are not part of the supporting structure.
  • the interior is preferably also closed at the bottom, preferably by a floor which is arranged at a distance from the plate elements and preferably at least essentially parallel to them (the slight inclination possible due to the overlapping arrangement of the plate elements is still considered to be essentially parallel).
  • the floor can, for example, be at least partially covered by one or more insulation plates must be formed. If the above-mentioned cross tubes are provided, insulation panels can preferably be arranged between the cross tubes, it being possible for the insulation panels to completely or partially overlap the cross tubes.
  • Openings are preferably provided which supply air into the interior or remove it from it.
  • the openings can, for example, be formed as holes in the floor of the interior.
  • Inlets and outlets are preferably arranged at a distance from one another, preferably spaced apart in the longitudinal direction.
  • the distance between supply and discharge preferably corresponds to at least 50% of the length of a plate element, more preferably at least the length of a plate element, and is particularly preferably greater than the length of a plate element.
  • the openings are preferably connected to lines for air flow, for example hoses, pipes, air ducts or the like.
  • photovoltaic modules When arranging photovoltaic modules in the interior, it is preferred that areas through which air can flow are formed both above and below the photovoltaic modules, i.e. the photovoltaic modules are preferably spaced from a cover arranged above and from a floor arranged underneath. In this way, a desired operating temperature range of the photovoltaic modules can be maintained by the air flowing around the modules.
  • the photovoltaic modules can preferably be arranged on spacers in the interior, whereby the spacers can further preferably be attached to the cross tubes.
  • the method according to the invention provides for the production of the roof structure described above.
  • This includes the steps of forming the support channels from support channel sections arranged in alignment and overlapping one another, the arrangement of the support channels on the roof surface and the overlapping arrangement of the plate elements on the support areas of the support channel sections, whereby the plate elements can be photovoltaic modules and / or transparent covers and optionally Photovoltaic modules can be arranged below the plate elements.
  • the steps mentioned can be carried out in different sequences, preferably photovoltaic modules are first installed on a roof surface and then individual support trough sections and the support troughs are formed from these in an overlapping attachment of further support trough sections before the plate elements are placed on the support areas.
  • Fig. i shows a first embodiment of a roof structure in a schematic side view of the roof area of a building with a pitched roof;
  • Fig. 2 shows part of the roof structure from Fig. 1 in a perspective view
  • Fig. 3 is a side view of part of the roof structure from Fig. i, 2;
  • Fig. 4 is a view of the section through the roof structure along the section line A..A in Fig. 2;
  • Fig. 5 is a view of the section through the roof structure along section line B..B in Fig. 2;
  • Fig. 6 is a view of the section through the roof structure along the section line C..C in Fig. 2;
  • Fig. 7 elements of the roof structure from Figs. 2 - 6 in an exploded view
  • FIG. 8 shows a second embodiment of a roof structure on a building with a sloping roof in a schematic side view
  • Fig. 9 is a side view of part of the roof structure from Fig. 8;
  • Fig. io shows the roof structure from Fig. 8, 9 in an exploded view
  • Fig. 11 is a perspective view of parts of the roof structure according to Figs. 8-10;
  • Fig. 12 is a view of the section along line D..D in Fig. 11;
  • FIGS. 8-12 shows a side view of the overlap of two gutter sections in the second embodiment according to FIGS. 8-12;
  • FIGS. 14a, 14b shows an insert of the support channel section according to FIGS. 14a, 14b in a perspective view
  • FIG. 15 shows a hold-down device of the second embodiment according to FIGS. 8-14c in a perspective view
  • Fig. 16 shows two interlocking hold-down devices of the second embodiment according to Figs. 8-15 in a perspective view.
  • Figures 1 - 7 show a first embodiment of a roof structure 10.
  • FIG. 1 shows a schematic view of the roof structure 10 according to the first embodiment on a sloping roof of a building 12.
  • the illustration focuses on the outer roof structure, i.e. in particular the roof covering, independent of the load-bearing roof structure, of which here is only one example of a plurality of roof beams 14 is shown.
  • the roof structure 10 comprises a substructure 30 with cross tubes 16 and insulation panels 18 arranged between them and a superstructure 32 fastened thereon with supporting channels 20 (of which a supporting channel 20 is shown in a side view in FIG. 1) and plate elements 24 resting thereon.
  • the cross tubes 16 run perpendicular to the drawing surface of FIG. 1 in a direction, which is referred to below as the transverse direction.
  • a plurality of cross tubes 16 are arranged parallel to one another and regularly spaced apart within the roof surface in a direction which is referred to herein as the longitudinal direction.
  • the roof structure io shown is a regularly repeating structure, each with a plurality of cross tubes 16, support channels 20 and plate elements 24. Only parts of the repeating structure are shown in the drawings, for example in Figure 1 six parallel cross tubes 16 and in FIG. Furthermore, for better visibility of the elements, no side ends are shown in the drawings, although in a complete roof structure 10 these are preferably present in the form of circumferential covers.
  • each of the support channels 20 is formed from support channel sections 22 aligned in the longitudinal direction.
  • Each support channel section 22 is formed in one piece from a profile made of folded sheet metal which is approximately 80 cm long in the preferred example and has a trapezoidal cross-sectional shape throughout (which can also be seen from Fig. 4) with a flat base and two side walls projecting obliquely at opposite angles, from which outwardly projecting support areas 34 extend at the upper edge.
  • the support channel sections 22 are arranged overlapping and nested one inside the other at their end regions over a length of approximately 7 cm in the preferred example.
  • the plate elements 24 are placed on the support areas 34, with a flexible seal being placed between them (not shown in the drawings).
  • the plate elements 24 are flat, transparent glass panes. They form the upper end of the roof structure 10.
  • the plate elements 24 bridge two adjacent support channels 20, each resting on the opposite support areas 34. Between the support channels 20 and below the plate elements 24, closed interior spaces 36 are formed, which are opposite to the The outside is wind and rainproof.
  • the plate elements 24 are arranged to overlap one another in the longitudinal direction (FIG. 5), whereby, as shown in FIG. 2, the plate element 24 arranged higher in the direction of the roof slope covers the plate element 24 arranged underneath over a few centimeters of overlap area. Flexible seals are arranged between the plate elements 24 in the overlap area.
  • the overlapping arrangement of the plate elements 24 resting thereon is possible with full-surface contact on the support areas 34.
  • the plate elements 24 are thus supported over their entire length (in the longitudinal direction) and a sealing support is made possible.
  • the plate elements are attached to the support channels 20 by hold-down devices 26.
  • the hold-down devices 26 are, as can be seen in particular in FIGS. 4, 5, folded plates which rest on the top side of the plate elements 24 and encompass the final edge which points downward in the longitudinal direction in the direction of the sloping roof.
  • the hold-down devices 26 are each arranged in the area of the lower corners of the plate elements 24 in the longitudinal direction. Intermediate layers made of a flexible plastic sealing material are placed between the hold-down devices 26 and the plate elements 24 in order to avoid damage to the plate elements caused by mechanical stresses.
  • the hold-down devices 26 are held by hold-down bolts 38 which are fastened with screw nuts to crossbars 40 which are fastened in the support channel sections 22 between the side walls.
  • the crossbars 40 are each fastened in the area of the rear ends of the support trough sections 22, but at a slight distance from the rear end, so that the hold-down devices 26 and hold-down bolts 38 are each arranged adjacent to the areas of overlap of the end sections of the support trough sections 22.
  • the hold-down devices are Bolts 38 are centered within the support channels 20 and thus reach through the gap formed by two plate elements 24 adjacent in the transverse direction. The hold-down devices 26 reach over the gap and thus fix two plate elements 24.
  • the support channel sections 22 are each pierced in the area of the floor at their rear section in the direction of the roof inclination and fastened there to the cross tubes 16 by means of fastening bolts 42.
  • the fastening bolts 42 are each arranged in the area of the overlap of the support trough sections 22, so that the hole in the bottom of the lower support trough section 22 is covered by the upper support trough section 22 arranged above it.
  • seals 44 are arranged in the overlap area.
  • the fastening bolts 42 ensure that the support channels 20 are permanently fastened while at the same time maintaining the tightness.
  • the lower support channel section 22 is secured by screwing to a support tube 16 and in turn secures the plate elements 24 resting thereon via the fastened crossbar 40.
  • the roof structure 10 is sealed against weather influences by the elements explained and, if necessary, seals arranged between them. Rainwater is drained away on the plate elements 24 and within the support channel 20 in the direction of the sloping roof.
  • the interior spaces 36 are delimited in the transverse direction by the walls of the support channel sections 22, upwards by the plate elements 24 and downwards by a floor which is formed by the top sides of the insulation panels 18 and the cross tubes 16. In the longitudinal direction, the interior spaces 36 are continuously below the individual plate elements 24, but closed and sealed at the ends (not shown).
  • plate-shaped photovoltaic modules 28 are arranged at a distance between the floor and the underside of the plate elements 24 (see, for example, FIG. 6).
  • the photovoltaic modules 28 are attached to the cross tubes 16 with spacers 46. Areas through which air can flow are formed above and below the photovoltaic modules 28. Openings 48 are arranged on the top of the cross tubes 16 and form connections to the interior spaces 38. Air can thus be supplied into the interior spaces 38 through the cross tubes 16 and removed therefrom.
  • the cross tubes 16 are preferably connected to air-conveying fans in such a way that air is supplied and removed alternately through cross tubes 16 arranged next to one another, so that, as indicated by dotted arrows in FIG. 6, an air flow results within the interior spaces 38, through which the Photovoltaic modules 28 are washed on the top and bottom.
  • the sunlight falls through the transparent plate elements 24 into the interior 38 and there onto the photovoltaic module 28, as indicated in FIG. 6. This generates electrical power, which is dissipated through electrical lines not shown here.
  • the photovoltaic module 28 and the air in the interior 38 heat up. Due to the air flow described above, warm air is removed through cross pipes 16 and can be used, for example, for heating or generating electricity. The air flow dissipates heat from the interior 38 and thus ensures that the photovoltaic module 28 does not heat up excessively to a temperature at which the efficiency would be too severely impaired.
  • the roof structure 10 very efficient use of solar radiation is possible with a simple structure and good sealing as well as with few components. By guiding air, the heat generated can be used, while at the same time it can be ensured that the photovoltaic modules 28 can work in a favorable temperature range.
  • the roof structure 10 is easy to assemble, mechanically stable and also inexpensive in the event of servicing. Different procedures with different sequences of construction steps are possible.
  • the cross tubes 16 are preferably first fastened in the transverse direction to the supporting roof structure and the insulation panels 18 are attached between them and then the photovoltaic modules 28 are attached to the spacers 46 and electrically connected (not shown).
  • the support channels 20 are then pieced together from the support channel sections 22 and screwed onto the cross tubes 16.
  • the support channels 20 can also be assembled and attached to the cross tubes 16 before the photovoltaic modules are installed.
  • the plate elements 24 are placed overlapping on the support channels 20 and secured by the hold-down devices 26.
  • the roof structure 110 according to the second embodiment corresponds to the roof structure 10 according to the first embodiment in many elements of the structure and in many details. Below, particular reference is made to the differences between the embodiments. Identical elements are provided with identical reference numbers.
  • the roof structure 110 comprises, as a supporting structure, a substructure 130 with roof beams 14 and cross beams 116 and insulation panels 18 arranged between them, on which a closed roof panel 119 is applied.
  • the roof beams 14 run parallel in the longitudinal direction, i.e. following the roof pitch, while the cross beams 116 run parallel to each other in the transverse direction.
  • the roof panel 119 is preferably formed from panels with water-repellent properties assembled in a tongue/groove manner, preferably as a possible second water-conducting level.
  • a superstructure 132 is fastened to the substructure 130 with spacer beams 146, support channels 20 fastened thereon and plate elements 124 resting thereon with hold-down devices 126.
  • spacer beams 146 support channels 20 fastened thereon
  • plate elements 124 resting thereon with hold-down devices 126.
  • each of the support channels 20 is formed from support channel sections 22 aligned in the longitudinal direction.
  • the support channel sections are shown separately in FIGS. 14a, 14b.
  • each support channel section is formed, for example, from a sheet metal with a thickness of 0.8 - 1.4 mm, preferably mm.
  • the trapezoidal profile for example, has a height of approx. 35mm, lower inner width of approx. 30mm, upper inner width of approx. 50mm with sealing strips.
  • the trapezoidal shape includes bends of, for example, 108° each. The outer bends form support surfaces 34 with glued-on flexible sealing strips 123.
  • the bottom of the support channel sections 22 is closed except for a hole at one end.
  • Two inserts 50 with threaded nuts (Fig. 14c) are inserted and welded into the profile of the support channel section 22.
  • the support channel sections 22 are arranged interlocking, i.e. nested, with a partial overlap, as in the first embodiment. As shown in FIG. 13, the pierced end of the respective lower support channel section 22 is covered by the end of the support channel section arranged above it.
  • Plate elements 124 are placed on the sealing strips 123 of the support surfaces 34 of the support channel sections 22, the plate elements 124 also being arranged to overlap one another in accordance with the overlapping arrangement of the support channel sections 22. Flexible seals (not shown) are arranged between overlapping plate elements.
  • the plate elements 124 are not transparent glass panes, but rather flat photovoltaic modules.
  • the photovoltaic modules 124 themselves form the upper end of the roof structure 110.
  • the plate elements 124 arranged between two adjacent support channels 20 thus cover closed interior spaces 36, as in the first embodiment, which are closed off from the outside in a wind- and rain-tight manner.
  • the interior spaces 36 are delimited laterally in the transverse direction by the support channel sections 22 and spacer beams 146, upwards by the plate elements 124 and downwards by the roof panel 119.
  • the spaces are continuous, for example extending from the roof ridge to the lower end, However, subdivisions are also possible. Due to the nested, partially overlapping arrangement of the support channel sections 22, the plate elements 124 resting thereon, which are also arranged in an overlapping manner, are aligned parallel thereto, so that a uniform contact with the support areas 34 is ensured.
  • the plate elements 124 are fastened to the support channels 20 by hold-down devices 126.
  • the hold-down devices 126 are, as can be seen in particular from FIG. 11 (only two hold-down devices 126 are shown here for clarity), elongated strips which cover the plate elements 124 over the entire length.
  • 16 hold-down devices 126 are shown in more detail. These are elongated sheet metal strips in which a downwardly directed fold 152 is formed at a lower end and an upwardly directed fold 154 is formed at the upper end. As can be seen from Fig. 16, the lower end of the hold-down device 126 is widened and the lower fold 152 has a central recess of the width of the upper fold 152.
  • the hold-down devices 126 are placed on the plate elements 124 in such a way that they cover two laterally adjacent plate elements 124 (FIG. 16). Hold-down devices 126 arranged in alignment with one another engage with one another in that the lower fold 152 of the hold-down device 126 arranged higher overlaps the upper fold 154 of the hold-down device 126 arranged underneath. At the same time, the lower fold 152 surrounds the plate elements 124 and thus secures them against slipping. Here too, there is no direct contact between the hold-down devices 126 and the plate elements 124, but rather an intermediate layer is arranged between them (not shown).
  • the hold-down devices 126 are held by hold-down bolts 38 which are screwed to the screw nuts on the transverse webs 40 of the supporting channel sections 22 underneath.
  • the support channel sections 22 themselves are screwed to the spacer beams 146 underneath by means of screws 142, using the screw hole 50 (FIG. 13). Due to the overlap and seal 44, as in the first embodiment Tightness guaranteed.
  • the roof structure is not tight, with rainwater being drained away on the plate elements 124 and in the support channels 20. In the event of minor leaks at the seals in between, water that may penetrate into the interior 36 can flow onto the roof panel 119 in the direction of the roof slope be dissipated.
  • the interior spaces 36 formed between the support channels 22 and below the plate elements 124 (photovoltaic modules) each represent areas through which air can flow. Air is introduced into the spaces 36 through hoses 156 and the roof panel 119 as well as holes 148 penetrating the insulation panels 18 deducted again elsewhere (see, for example, Fig. 11). The air flowing in the interior spaces 36 is in contact with the underside of the plate elements 124 (photovoltaic elements) so that they can be cooled by the air flow. As in the first embodiment, the resulting heat can be used, while at the same time it can be ensured that the photovoltaic modules 124 can work in a favorable temperature range.
  • the supply and discharge are preferably spaced apart from one another in the longitudinal direction, particularly preferably with a distance that is greater than the length of a plate element 124 in the longitudinal direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

L'invention concerne une structure de toit (10) et un procédé de production de celle-ci. La structure de toit (10) comprend une pluralité de canaux de support (20) parallèles qui sont chacun formés de parties de canal de support (22) alignées, des extrémités des parties de canal de support (22) étant agencées pour se chevaucher. Des éléments plans (24, 124) sont agencés entre chaque paire de canaux de support (20) et reposent sur des régions de support (34) des parties de canal de support (22). Les éléments plans (24, 124) sont agencés pour se chevaucher dans le sens de la longueur des canaux de support (20). Les éléments plans (24) sont des éléments de couverture transparents et des modules photovoltaïques (28) sont agencés sous les éléments plans (24) et/ou les éléments plans (124) sont des modules photovoltaïques.
PCT/EP2023/071736 2022-08-18 2023-08-04 Structure de toit comprenant des modules photovoltaïques WO2024037897A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022120931.8A DE102022120931A1 (de) 2022-08-18 2022-08-18 Dachaufbau mit Photovoltaik-Modulen
DE102022120931.8 2022-08-18

Publications (1)

Publication Number Publication Date
WO2024037897A1 true WO2024037897A1 (fr) 2024-02-22

Family

ID=87797868

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/071736 WO2024037897A1 (fr) 2022-08-18 2023-08-04 Structure de toit comprenant des modules photovoltaïques

Country Status (2)

Country Link
DE (1) DE102022120931A1 (fr)
WO (1) WO2024037897A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008026505A1 (de) 2008-05-26 2010-02-18 Würth Elektronik GmbH & Co. KG Solarmodul, Solarfläche und Solaranlage
CH703472A1 (de) 2010-07-28 2012-01-31 Dritan Dipl Techniker Hf Ramani Sonnenhybridkollektor.
WO2019168536A1 (fr) 2017-03-01 2019-09-06 Tesla, Inc. Système et procédé d'emballage de tuiles de toit photovoltaïques
EP3923468A1 (fr) 2020-06-09 2021-12-15 Siemens Gamesa Renewable Energy GmbH & Co. KG Procédé d'augmentation de la génération d'énergie d'une centrale solaire déjà installée, système de modification d'une centrale solaire et centrale solaire
WO2021255112A1 (fr) * 2020-06-16 2021-12-23 Gruppsol Ab Toit de panneaux solaires

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9015074U1 (fr) 1990-11-02 1992-03-12 Bauer, Heiner, Dipl.-Ing. (Fh), 8501 Pyrbaum, De
DE10034655A1 (de) 2000-07-16 2002-01-24 Guenter Busch Vorrichtung zur Nutzung der Sonnenenergie
DE20209892U1 (de) 2002-06-26 2002-10-02 Maeder Wolfgang Anordnung zur Befestigung von Solarmodulen an Wänden und auf Dächern von Gebäuden

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008026505A1 (de) 2008-05-26 2010-02-18 Würth Elektronik GmbH & Co. KG Solarmodul, Solarfläche und Solaranlage
CH703472A1 (de) 2010-07-28 2012-01-31 Dritan Dipl Techniker Hf Ramani Sonnenhybridkollektor.
WO2019168536A1 (fr) 2017-03-01 2019-09-06 Tesla, Inc. Système et procédé d'emballage de tuiles de toit photovoltaïques
EP3923468A1 (fr) 2020-06-09 2021-12-15 Siemens Gamesa Renewable Energy GmbH & Co. KG Procédé d'augmentation de la génération d'énergie d'une centrale solaire déjà installée, système de modification d'une centrale solaire et centrale solaire
WO2021255112A1 (fr) * 2020-06-16 2021-12-23 Gruppsol Ab Toit de panneaux solaires

Also Published As

Publication number Publication date
DE102022120931A1 (de) 2024-02-29

Similar Documents

Publication Publication Date Title
DE60220760T2 (de) Solarpaneelanordnung
DE4444439C2 (de) Solarenergieanlage sowie Aufnahmeelement und Firstverbindungselement dafür
WO2007096157A2 (fr) Système de module solaire comportant une structure porteuse
DE202008000528U1 (de) Solarmodulanordnung
EP2167882A1 (fr) Profilé en matériau à base de métal léger sur lequel s'étendent des éléments tubulaires et dispositif comprenant ledit profilé
DE102006009194A1 (de) Anordnung aus einer tragenden Gebäudestruktur und einem Solarzellenaufbau
EP2042822A2 (fr) Système complet d'énergie solaire
WO2011138344A2 (fr) Sous-structure pour installation solaire
DE202007016367U1 (de) Solares Energiekomplettsystem
EP2381188A2 (fr) Système de montage de module solaire et enveloppe extérieure de bâtiment
WO1996018857A2 (fr) Elements universels d'empilement, de transport et de montage pour capter, stocker, etc. l'energie solaire, ainsi que leur fixation
DE102006006718B4 (de) Solarkollektor
EP2190030A2 (fr) Unité photovoltaïque, système photovoltaïque ainsi que procédé de fabrication d'une unité photovoltaïque
EP1988227B1 (fr) Toit pour bâtiments
DE10142383C2 (de) Träger für Solarmodule und dessen Verwendung sowie Dachabdeckung oder Fassade
EP0006585A1 (fr) Absorbeur solaire
DE202008004055U1 (de) Dachmodul für Solaranwendungen
CH707930B1 (de) Fassaden- oder Dachelement, aufweisend eine oder mehrere photovoltaische Solarzellen.
EP3190699B1 (fr) Système de pose de panneau solaire hybride sur un toit
DE202008001826U1 (de) Dacheindeckungs- oder Wandverkleidungselement zur Solarenergiegewinnung
DE102008004179A1 (de) Solarmodulanordnung
WO2023021189A1 (fr) Structure de toit et paroi pour production combinée d'énergie et de chaleur
DE102011013147B4 (de) Solardach
WO2024037897A1 (fr) Structure de toit comprenant des modules photovoltaïques
WO2001069689A1 (fr) Element a energie avec couche photovoltaique

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23758522

Country of ref document: EP

Kind code of ref document: A1