EP4356513A1 - Procédé de montage d'un système photovoltaïque et système de montage pour un système photovoltaïque - Google Patents

Procédé de montage d'un système photovoltaïque et système de montage pour un système photovoltaïque

Info

Publication number
EP4356513A1
EP4356513A1 EP21735599.9A EP21735599A EP4356513A1 EP 4356513 A1 EP4356513 A1 EP 4356513A1 EP 21735599 A EP21735599 A EP 21735599A EP 4356513 A1 EP4356513 A1 EP 4356513A1
Authority
EP
European Patent Office
Prior art keywords
roof
support
profiles
support profiles
hooks
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP21735599.9A
Other languages
German (de)
English (en)
Inventor
Jochen Ganz
Walter Weiler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ganz & Gar Business Passion GmbH
Original Assignee
Ganz & Gar Business Passion 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 Ganz & Gar Business Passion GmbH filed Critical Ganz & Gar Business Passion GmbH
Publication of EP4356513A1 publication Critical patent/EP4356513A1/fr
Pending legal-status Critical Current

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
    • 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
    • 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
    • F24S2025/6002—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules by using hooks

Definitions

  • the present invention relates to a method for mounting a photovoltaic system and a mounting system for a photovoltaic system, in particular for mounting on pitched roofs.
  • the mounting systems are exposed to temperature fluctuations from -10°C to 60°C, for example, with the mounting systems being exposed to more extreme temperatures than those below wooden beam constructions.
  • the static support structure of the roof deforms under load, such as wind or snow.
  • the circumstances mentioned above mean that considerable and almost uncontrollable stress conditions occur in the substructures, which can lead to damage to the roof (brick breaks, breaks in corrugated fiber cement panels, etc.).
  • the damage patterns in practice are varied. These superimposed stress conditions weaken the resilience of the systems to any additional stresses such as wind or snow.
  • An object of the present invention is a method for mounting photovoltaic systems on roofs, especially pitched roofs and a mounting system for
  • a method according to the invention for installing a photovoltaic system comprises the steps:
  • This method has the advantage that the support profiles rest on the roof tiles in a stable area and forces that act on the roof in a vertical direction can be transferred through the tiles to the roof battens and rafters. It can be exploited with that
  • roof tiles made of coarse ceramics, cement or fiber cement a load-bearing structure is available. Since roof tiles are arranged next to one another and overlapping one another, overlapping areas arise in the lateral edge areas of the respective roof tiles and in the upper and lower edge areas with respect to the line of fall.
  • the upper edge area of the upper surface of the lower roof tile and/or the lower edge area of the lower surface of the upper roof tile relative to the fall line can be adjusted, i.e. material can be removed in such a way that a roof hook can pass through the recess formed essentially without touching it is feasible.
  • the support profiles can be opened rest on the underlying roof tiles along their entire length. With a photovoltaic on-roof mounting system mounted in this way, significantly fewer roof hooks are required, which means that a reduction in the material costs and a reduction in the mounting costs of up to 50% can be achieved.
  • the overlapping areas are adjusted in an area spaced apart from the lateral roof tile edges. I.e. the adjustment is made in a central area of the upper or lower edge areas of the roof tiles.
  • the method further comprises the steps of:
  • This procedure has the advantage that the photovoltaic modules are arranged between a stable frame construction.
  • the support profiles are arranged at regular intervals from one another and the insertion profiles are arranged at regular intervals from one another.
  • Such an arrangement is necessary if several photovoltaic modules of the same dimensions are to be arranged next to one another and one above the other. Since the lateral distances between the rafters cannot be changed, the lateral distances are from two to each other adjacent support profiles essentially predetermined by the rafter spacing. Accordingly, the roof hooks are designed in such a way that a laterally offset arrangement with respect to the rafters is possible, for example by means of a fastening plate with a plurality of through-holes.
  • some or all support profiles are attached to an upper roof hook or to an upper roof hook and to at least one lower roof hook. In this way, a distributed introduction of forces, primarily of the forces acting in the fall line, can be achieved from the photovoltaic system into the rafters of the roof construction.
  • each upper roof hook is designed in such a way that it allows the respective support profile to be displaced along its longitudinal axis during assembly and, after installation, firmly connects the respective support profile to the corresponding rafter, and each lower roof hook is designed in such a way that it can be moved during and after assembly a shift of the respective
  • Support profile allowed along its longitudinal axes. This has the advantage that the photovoltaic system is firmly connected to the roof in its upper area and changes in length of the support profiles are not blocked by the lower roof hooks, which means that mechanical stresses in the construction can be avoided. Less mechanical stress on the structure extends its service life. Changes in length of the support profiles can be caused by lateral forces acting on them or by Temperature changes are caused. For example, the support profiles can be bent by wind or snow, or they experience thermal expansion, for example in midsummer when the roof gets particularly hot.
  • upper roof hooks which are opposite one another with respect to a roof ridge, are connected to one another with a reinforcing band. In this way, a load distribution of the forces acting in the line of fall can be achieved.
  • the support profiles comprise a metal profile and an elastic support layer connected thereto, which extends along the entire length of the metal profile, the support profiles resting with the support layer on the roof tiles. Due to its deformation, the elastic support layer causes the support forces to be distributed over a larger area, which reduces the pressure acting on the roof tiles. This applies above all to forces acting vertically on the roof. Since the deformation results in a larger contact surface, the elastic increases
  • the metal profile comprises
  • the overlay layer can be connected to the metal profile be glued or the metal profile can be cast with the overlay layer.
  • the metal profile is a stainless steel or aluminum profile.
  • the support layer is a layer of silicone.
  • the support layer can also be compressible and can comprise a foam, for example.
  • the support layer can comprise a rubber made from EPDM, EVA or EPR, or preferably a foam made from PUR. These materials have excellent weather and aging resistance and exhibit thermo-mechanical properties that enable them to withstand the loads that are applied.
  • a mounting system according to the invention for a photovoltaic system comprises at least two roof hooks, which can be arranged in an overlapping area of overlapping roof tiles and which can be fastened to the rafters below, and at least two support profiles, which can be arranged lying on the overlapping area and which can be fastened to the roof hooks, wherein the support profiles comprise a metal profile and an elastic support layer connected thereto, which extends along the entire length of the metal profile.
  • FIG. 1 shows a sectional view through a photovoltaic system mounted according to the invention on a pitched roof;
  • FIG. 2 shows a perspective view of a support profile of FIG. 1
  • FIG. 3 shows a schematic perspective view of a mounting system according to the invention for a photovoltaic system mounted on a roof;
  • figs 4A-B a first embodiment of a lower roof hook
  • figs 5A-B a second embodiment of a lower roof hook.
  • FIG. 1 shows a sectional view through a photovoltaic system mounted according to the invention on a pitched roof.
  • overlapping areas 30 of roof tiles 3 arranged overlapping with one another were adapted by removing projections and possibly parts of the tile surface in this area in order to form a passage for a roof hook 4 .
  • roof hooks 4 were arranged in the adapted overlapping areas 30 . in the illustrated case, an upper roof hook 40 and a lower roof hook 41 were arranged.
  • the roof hooks 4 were then attached to the rafters 1, which are located below the overlapping areas 30.
  • support profiles 6 were arranged on the existing roof tiles 3 in such a way that they rest on the roof tiles 3 at least in the overlapping areas 30 .
  • the support profiles 6 were then attached to the roof hooks 4.
  • insert profiles 7 were attached to the support profiles 6.
  • Step photovoltaic modules 8 were arranged on the support profiles 6 and between the insert profiles 7 and fastened.
  • the top roof hook 40 has been connected with a reinforcing band 5 to another top roof hook (not shown) located on the opposite side of the roof ridge.
  • FIG. 2 shows a perspective view of a support profile 6 from FIG.
  • the support profile 6 comprises a metal profile 60 and a support layer 61 firmly connected thereto.
  • the support layer 61 is connected to the metal profile 60 essentially at a support surface 600 . For better attachment of the support layer 61 on the metal profile 60 are at the
  • Support surface 600 ribs 601 provided, which protrude into the support layer 61.
  • FIG. 3 shows a schematic perspective view of one according to the invention mounted on a roof Mounting system for a photovoltaic system. Shown are several support profiles 6, which are arranged parallel and at equal distances from each other, with respect to the line of fall next to each other. The two outer support profiles 6 and the middle support profile 6 are each fastened to the roof with an upper roof hook 40 and a lower roof hook 41 and lie on the roof tiles 3 . All support profiles 6 are connected to one another with several insert profiles 7 . The insert profiles 7 are distributed evenly along the support profiles 6 . The support profiles 6 together with the insert profiles 7 form a solid frame construction. In order to increase the rigidity of the construction, diagonally arranged profiles can be provided (not shown), which are firmly connected to support profiles and/or insert profiles.
  • FIG. 4A shows a first embodiment of a lower roof hook 4 and FIG. 4A shows an end area of a spacer 400 of the roof hook 4 of FIG. 4A.
  • the spacer 400 is in the form of a lug and its end area is aligned parallel to the rafters in the intended position of use and has a slot 401 which extends along the fall line after assembly.
  • the support layer 61 of the support profile 6 rests on the end area of the roof hook 4 .
  • a through hole extends through the support layer 61 and the metal profile 60 of the support profile 6.
  • a screw 402 is arranged in the through hole and extends through the slot 401 of the roof hook 4 in the assembled state. The screw 402 is fixed with a nut 404 .
  • a sleeve 403 is clamped between the metal profile 60 and the nut 404 is held.
  • the sleeve 403 is designed to be slidable along the slot 401 . Ie the diameter of the sleeve 403 is smaller than the width of the slot 401 and the length of the sleeve creates a gap between the clamping surface of the nut 404 and the corresponding surface of the roof hook 4 when the nut 4 is tightened.
  • the sleeve 403 and the nut 404 can be separate elements from each other or they can be formed together in one piece as shown here. Spring elements (not shown) can be provided between the nut and the roof hook. Shorter sleeves can also be used or the sleeve can be omitted if a fixing clamp of the roof hook and the support profile is desired, for example if the roof hook is to be used as an upper fixed roof hook.
  • FIG. 5A shows a second embodiment of a lower roof hook 4.
  • the spacer 440 is rod-shaped and its end area is aligned parallel to the rafters in the intended position of use.
  • a connector 441 is arranged around the end region of the spacer 440 and is firmly connected to the metal profile 60 of the support profile 6 with screws 442 .
  • a gap is formed between the outer diameter of the spacer 440 and the inner diameter of the recess of the connector 441, as a result of which a relative displacement of these two elements is possible.
  • a locking screw (not shown) can be provided with which the spacer can be fixed in the connector. This roof hook could therefore be used both as an upper and as a lower roof hook.

Landscapes

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

Abstract

L'invention concerne un procédé de montage d'une installation photovoltaïque, comprenant les étapes consistant à : adapter des zones de chevauchement (30) de tuiles (3) qui sont disposées de manière à se chevaucher les unes les autres ; disposer des crochets de toit (4) dans les zones de chevauchement adaptées (30) ; fixer les crochets de toit (4) sur des chevrons (1) qui sont situés sous les zones de chevauchement (30) ; disposer des profilés de support (6) sur les tuiles existantes (3) de telle sorte que ces profilés de support reposent sur les tuiles (3) au moins dans les zones de chevauchement (30) ; fixer les profilés de support (6) aux crochets de toit (4) ; et disposer et fixer des modules photovoltaïques (8) sur les profilés de support (6).
EP21735599.9A 2021-06-16 2021-06-16 Procédé de montage d'un système photovoltaïque et système de montage pour un système photovoltaïque Pending EP4356513A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2021/066285 WO2022262972A1 (fr) 2021-06-16 2021-06-16 Procédé de montage d'un système photovoltaïque et système de montage pour un système photovoltaïque

Publications (1)

Publication Number Publication Date
EP4356513A1 true EP4356513A1 (fr) 2024-04-24

Family

ID=76662441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21735599.9A Pending EP4356513A1 (fr) 2021-06-16 2021-06-16 Procédé de montage d'un système photovoltaïque et système de montage pour un système photovoltaïque

Country Status (3)

Country Link
EP (1) EP4356513A1 (fr)
AU (1) AU2021451114A1 (fr)
WO (1) WO2022262972A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202024000219U1 (de) 2024-02-05 2024-04-18 Michael Respondek Haltevorrichtung zur mangelfreien Befestigung von Dachlasten auf geneigten Dächern

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2779134B2 (ja) * 1994-02-22 1998-07-23 住友電設株式会社 屋根設置型太陽電池装置
DE10132557C2 (de) * 2000-11-20 2003-04-10 Antec Solar Gmbh Montageprofil zur Befestigung von Photovoltaik-Modulen und Montagesystem
AU2009225338B2 (en) * 2008-10-14 2010-08-19 Nickolaos Alevris An adjustable roof platform support device
US20190296683A1 (en) * 2018-03-21 2019-09-26 Fraunhofer Usa, Inc. Adhesive mounting of photovoltaic modules on roofs
DE102018128308A1 (de) * 2018-11-13 2020-05-14 Franz Blum Vorrichtung zur Bereitstellung einer Plattform auf dem Dach eines Gebäudes

Also Published As

Publication number Publication date
AU2021451114A1 (en) 2023-11-30
WO2022262972A1 (fr) 2022-12-22

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