EP2979039A1 - Élément de fixation de modules solaires à une surface de toit en pente - Google Patents

Élément de fixation de modules solaires à une surface de toit en pente

Info

Publication number
EP2979039A1
EP2979039A1 EP14706819.1A EP14706819A EP2979039A1 EP 2979039 A1 EP2979039 A1 EP 2979039A1 EP 14706819 A EP14706819 A EP 14706819A EP 2979039 A1 EP2979039 A1 EP 2979039A1
Authority
EP
European Patent Office
Prior art keywords
fastening element
base plate
frame
hook
fastening
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.)
Withdrawn
Application number
EP14706819.1A
Other languages
German (de)
English (en)
Inventor
Werner ILZHÖFER
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2979039A1 publication Critical patent/EP2979039A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F24S25/632—Side connectors; Base connectors
    • 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
    • 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
    • F24S2025/018—Means for preventing movements, e.g. stops
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • Fastening element for fastening solar modules to a sloping roof surface
  • the invention relates to a fastening element for fastening solar modules to a sloping roof surface.
  • a fastening element for fixing solar modules is proposed on a sloping roof surface, with a base plate for mounting on a roof of the roof surface or on a supported on the roof skin mounting rail, at least one of the base plate extending hook for suspending a first frame of a first solar module, the first frame being moved for hooking along a hooking direction relative to the hook; and a support wall extending from the base plate opposite the hook for supporting a second frame of a second solar module; Support wall extends approximately perpendicular to the direction of attachment.
  • the proposed fastener allows attachment of solar modules on a sloping roof surface by simply hooking and supporting. Using the proposed fastener, it is not necessary to make a clamping connection, such as by fixing a clamping screw. With the proposed fastener solar modules can be mounted on a sloping roof surface quickly and easily. The solar modules are kept in the fastener by gravity rather and reliably.
  • the fastening element can be fastened directly to the roof skin, for example a trapezoidal sheet forming the roof skin, or to a mounting strip supported on the roof skin, for example a profile pipe made of aluminum, by means of penetrating bolts, drilling screws, rivets or the like.
  • a mounting strip supported on the roof skin for example a profile pipe made of aluminum
  • it is also possible to attach the base plate for example by means of an adhesive, in particular a mounting adhesive, to the roof skin.
  • the hook expediently has a slot running in the direction of attachment for inserting a free leg of a first frame designed in the manner of a U-profile.
  • photovoltaic or solar modules are usually surrounded by a trained in the manner of a U-profile frame.
  • Free legs of the U-profiles formed on a rear side of the solar module are directed inwards and run approximately parallel to a collector surface of the solar module.
  • the free legs of the U-profile have - depending on Type - usually a depth of 20 to 50 mm.
  • the fastening element according to the invention uses the provided on the back of conventional solar modules anyway free leg for hooking into the hook, which is advantageously designed for this purpose as a slot.
  • the holding element can be made, for example, from an aluminum sheet cut by means of laser cutting and subsequently folded. A cutting pattern of a laser cutting machine can be changed quickly and easily.
  • the first distance can be set so that the solar modules are arranged evenly distributed with respect to a maximum available roof coverage area.
  • the first width of the rear ventilation gap can be set such that the solar modules fill the maximum available roof area uniformly in the vertical direction.
  • a second width of 40 to 140 mm spaced from the base plate by a second width of 40 to 140 mm, preferably 70 extend up to 120 mm, two of the hooks, such that two first frames of two first solar modules can be suspended next to each other.
  • the supporting wall expediently has a height of 30 to 60 mm, preferably 35 to 50 mm. It is thus adapted to the usual frame heights of conventional solar modules.
  • a third width of the support wall is suitably 40 to 140 mm, preferably 70 to 120 mm.
  • the support wall is suitable for supporting two juxtaposed second frame of the second solar modules.
  • a fastener with the aforementioned features is therefore suitable to install proportionally four solar modules in the region of their corners.
  • the invention extends from one of the base plate facing away from the upper edge of the support wall at an angle of 80 to 100 °, preferably 90 °, a second frame in the assembled state cross-web.
  • the second frame is usually forced in the assembled state by gravity against the support wall.
  • the proposed cross-bridge also serves to counteract wind-related lifting forces.
  • the base plate, the at least one hook and the support wall are made in one piece from a sheet metal or an extruded profile.
  • the sheet metal can be made of aluminum or stainless steel.
  • the profile can be made of aluminum or plastic.
  • the fastening element can in particular also be produced from an injection-molded plastic.
  • the proposed support bar extends between the two hooks of the base plate, a support web for supporting the hooked into the hook first frame.
  • the proposed support bar provides additional stability against bending or buckling of the base plate, which can be caused for example by uplifting wind forces.
  • the proposed support bridge offers a suitable Design an additional support surface for supporting the first frame. This further improves the retention of the solar modules in the fastener.
  • a spacer plate with a thickness in the range from 1 to 30 mm can be provided on one of the underside of the base plate facing away from the hook and the support wall.
  • the spacer plate may be made of a plastic or rubber material. It can have a profile on its base plate facing away from the further bottom, which corresponds to a profile of the roof skin.
  • the further underside can be designed corresponding to the shape of a trapezoidal or corrugated sheet metal, a roof tile or the like. If the spacer plate is made of an elastic material, this adapts at least partially to the shape of the roof skin.
  • a mounting member for mounting solar modules is proposed on a sloping roof surface, wherein a plurality of fasteners of the invention are mounted on a mounting bar in a fixed predetermined distance A such that the hooks are aligned in the same direction.
  • several of the proposed mounting elements are mounted in vertical alignment with the roof skin such that the fasteners mounted thereon are aligned horizontally with each other.
  • a first solar module with its first frame can then be hooked into the hook in two adjacent fastening elements in the region of the ridge-side corners and supported on the support walls of further fastening elements in the region of the eaves-side oriented corners.
  • a second solar module can be mounted in an analogous way, etc ..
  • A B R imitate - a - b - C + k, wherein Frame a width of the frame,
  • a is a first depth of the hook
  • b is a second depth of the free leg of the first frame
  • c is a thickness of a profile base plate of the U-profile of the first frame
  • k is a value in the range of 0 to 3 mm.
  • the proposed distance A ensures that the solar module is held securely and reliably by means of two fastening elements mounted successively on the mounting strip. If the first frame rests against the support surface of a first fastener, then the free leg of an opposite frame portion abuts the slot opening opposite the end of the slot or forms with the opposite end of the slot at most an expansion joint of at most 3 mm.
  • FIG. 1 shows a perspective partial view of a mounting element with solar modules attached thereto
  • FIG. 2 is a perspective view of a first fastener of FIG. 1,
  • FIG. 4 shows a perspective view of a second fastening element
  • FIG. 5 shows a perspective view of the fastening element according to FIG.
  • FIG. 6 perspective view of a third fastener
  • FIG. 7 perspective view of a fourth fastener
  • Fig. 8 is a perspective view of a fifth fastening element
  • FIG. 9 perspective view of a sixth fastener
  • FIG. 10 is a perspective view of a seventh fastener
  • FIG. 1 1 perspective view of an eighth fastener.
  • the mounting element shown in FIGS. 1 and 2 comprises a mounting strip 1 to be placed vertically on a roof skin (not shown here), which is formed, for example, from a profile made of aluminum, in particular a cantilever or the like.
  • a ridge-side end of the mounting strip 1 is denoted by F and a eaves-side end by T.
  • On the mounting strip 1 are at a predetermined distance A generally designated by the reference numeral 2.1 first fastening elements attached.
  • a eaves-side first solar module is denoted by the reference symbol S1, a ridge-side second solar module by the reference symbol S2.
  • Each of the solar modules S1, S2 has a z. B. made of aluminum frame, whose opposite sides are each formed in the manner of a U-profile.
  • a first frame of the first solar module S1 has a first free leg 3, which extends inwards at a bottom side opposite a collector surface of the first solar module S1, that is to say in FIG. H. extends in a direction which is below the collector surface of the first solar module S1.
  • the second solar module S2 has a second frame with a second free leg 4.
  • each fastening element has a base plate 5, which has approximately a rectangular outline. From two opposing first edges of the base plate 5 extend hook 6. Each of the hooks 6 has a slot 7 for insertion of the free leg 3, 4. A predetermined by the hook 6 Einhangichtung E of the free leg 3, 4 extends approximately parallel to the extension direction of the slot 7.
  • the reference numeral 8 denotes a support wall which extends from a second edge of the base plate 5, which extends perpendicular to the first edges , Ie. the support wall 8 extends approximately perpendicular to the predetermined by the hook 6 Einh brieflyichtung E. At one of the base plate 5 facing away from the upper edge of the support wall 8 extends a web 9, which overlaps the second frame of the second solar module S2 in the assembled state.
  • the hooks 6 are each aligned in the same direction, d. H. the fasteners 2.1 are mounted so that the predetermined by the hook 6 Einhticianichtung E points in the same direction.
  • FIG. 3 shows a partial sectional view through a further mounting element with a second fastening element 2.2 attached thereto.
  • a first support web 9a which forms one edge of the slot 7 and extends from the base plate 5 is designed to be longer than in the case of the first fastening element 2.1.
  • the fastening elements are similarly configured: An opening plane O of the hooks 6 and the support wall 8 are spaced apart at a first distance A1, so that in the assembled state between the first S1 and the second solar module S2, a rear ventilation gap S is formed.
  • the first distance is z. B. 50 to 120 mm, the first width B1 is advantageously 30 to 100 mm, in particular 40 to 60 mm.
  • a second distance A2 between a rear wall R of the solar modules S1, S2 and a roof surface is advantageously 40 to 100 mm, particularly preferably 60 to 80 mm. .
  • a ratio between the first width B1 of the rear ventilation gap S and a frame width B R shown in Figure 1 hmen the solar modules S1, S2 is advantageously carried out as follows: B1 / frame ⁇ V, where V can take values in the range of 0.02 to 0.2, preferably 0.03 to 0.1.
  • A B R imitate - a - b - C + k, where a is a first depth of the hook 6,
  • b is a second depth of the free leg 3 of the first frame
  • c is a thickness of a profile base plate 10 of the U-profile of the first frame.
  • a double-chamber hollow profile may also be provided.
  • the thickness c corresponds to the thickness of the double-chamber hollow profile.
  • the distance A may be selected so that in the assembled state, the free leg 3 rests against one end of the slot 7.
  • A B R imitate - a - b - C.
  • a gap or an expansion joint can be provided, which can assume values of 0 to 3 mm.
  • the distance A decreases correspondingly by the value k.
  • a height H of the support wall 8 is adapted to a further height of the profile base plate 10 of the U-profile of the second frame. It is z. B. 30 to 60 mm.
  • a spacer plate 1 1 is attached to one of the underside of the base plate 5 facing the mounting strip 1, which spacer plate can have a further thickness D in the range from 1 to 40 mm.
  • the base plate 5 has openings 12 for fastening the second fastening element 2.2, for example on the mounting strip 1, on.
  • the openings 12 also pass through the spacer plate 1 1, which may be attached to the base plate 5, for example by means of an adhesive.
  • the fastener shown in the figures is suitably made of an aluminum sheet in one piece.
  • the hooks 6 and the support wall 8 are formed by folds.
  • the web 9 may be formed by a fold.
  • the second support web 13 serves for stiffening the base plate 5 and / or for supporting the free leg 3 inserted in the hook 6.
  • a second width B2 of the base plate 5 is expediently 60 to 120 mm. Accordingly, a distance between the opposing hooks 6 is suitably 50 to 120 mm, preferably 80 to 1 10 mm.
  • a third width B3 of the support wall 8 is advantageously in the range of 40 to 140 mm, preferably in the range of 70 to 120 mm.
  • the support wall 8 may also be designed trapezoidal.
  • fasteners are shown, in which only a first solar module S1 is hooked into one of the two hooks 6.
  • the fastening Elements 2.1 and 2.2 are suitable for hooking two of the eaves-side first solar modules S1 into a single fastening element 2.1, 2.2.
  • a single fastener is 2.1, 2.2, two
  • the fastener shown in the figures is formed from a sheet metal part, it may also be that it is made of injection-molded plastic. Furthermore, it is conceivable to produce the fastening element from an extruded profile. In this case, if the fastener is to be suitable for mounting four solar modules, a milled recess or notch must be provided to form two opposing hooks 6.
  • a milled recess or notch must be provided to form two opposing hooks 6.
  • four solar modules S1, S2 can simultaneously be fastened in the region of their abutting corners.
  • the further fastening elements 2.3 to 2.8 shown in FIGS. 6 to 8 are made simpler. They are suitable for fastening only two edge-adjacent solar modules S1, S2.
  • the hook 6 is formed in each case by a leg 14 which runs parallel to the base plate 5.
  • a slot height formed between the base plate 5 and the leg 14 remains substantially the same from the opening plane O to the end of the slot 7, that is to say the slot height. H. changes at most ⁇ 5%.
  • the slot height tapers from the opening plane O in the direction of the end of the slot 7.
  • the third fastening element 2.3 shown in FIG. 6 is expediently produced by extrusion of plastic or aluminum.
  • the fastening elements 2.4, 2.5 shown in FIGS. 7 and 8 can be produced by means of laser cutting and edges made of an aluminum or steel sheet.
  • the hook 6 can be conveniently prepared by a bend extending from the base plate 5.
  • the hook 6 may have another opening 15.
  • the corresponding counterpart is not bent away from the base plate 5, but instead forms a fastening tongue 16 extending from the hook-side end of the base plate 5.
  • FIGS. 9 to 11 show a sixth, seventh and eighth fastening element 2.6, 2.7, 2.8 which similar to the third, fourth and fifth fastening element 2.3, 2.4, 2.5 (see FIGS. 6 to 8) are configured.
  • each of the fastening elements 2.6, 2.7, 2.8 shown in FIGS. 9 to 11 has two hooks 6 extending from the base plate 5. Because of the configuration of the hook 6, etc., reference is made to the description of FIGS. 6 to 8.
  • the sixth to eighth fastening elements 2.6 to 2.8 shown in FIGS. 9 to 11 are each suitable for mounting two adjacent solar modules S1, S2 in the two hooks 6 extending from the base plate 5. Furthermore, the fastening elements 2.6 to 2.8 are respectively suitable for Supporting two adjacent further solar modules on the supporting wall 8. D.
  • the fastening elements 2.6, 2.7, 2.8 shown in FIGS. 9 to 11 are particularly suitable for attachment to trapezoidal sheets.
  • the base plate width is designed so that in each case a maximum gutter spacing commercial trapezoidal sheets, which is about 330 mm, bridged. Ie.
  • the sixth, seventh and eighth fastening elements 2.6, 2.7, 2.8 are designed in the manner of a "trapezoidal sheet metal bridge", which can be fastened to two adjacent combs of the trapezoidal sheet metal.
  • a plurality of apertures 12 provided in a universal arrangement can be provided in the base plate 5.
  • the arrangement of the apertures 12 is selected so that the fastening elements 2.6 to 2.8 can be fastened to adjacent combs of commercially available trapezoidal sheets.

Landscapes

  • Engineering & Computer Science (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)

Abstract

L'invention concerne un élément de fixation (2.1 à 2.8) servant à fixer des modules solaires (S1, S2) à une surface de toit en pente, comprenant une embase (5) destinée à se fixer sur une couverture de la surface de toit ou sur une barre de montage (1) en appui sur ladite couverture, au moins un crochet (6) qui s'étend à partir de l'embase (5) et qui sert à accrocher un premier cadre d'un premier module solaire (S1), le premier cadre (1) étant déplacé pour l'accrochage dans une direction d'accrochage (E) par rapport au crochet (6), et une cloison d'appui (8) qui s'étend face au crochet (6) depuis l'embase (5) et qui sert à soutenir un second cadre d'un second module solaire (S2). La cloison d'appui (8) est orientée sensiblement perpendiculairement à la direction d'accrochage (E).
EP14706819.1A 2013-03-28 2014-02-25 Élément de fixation de modules solaires à une surface de toit en pente Withdrawn EP2979039A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102013205679 2013-03-28
DE202013003496U DE202013003496U1 (de) 2013-03-28 2013-04-15 Befestigungselement zum Befestigen von Solarmodulen an einer geneigten Dachfläche
DE102013207827.7A DE102013207827B4 (de) 2013-03-28 2013-04-29 Vorrichtung zum Befestigen von Solarmodulen und Dach
PCT/EP2014/053624 WO2014154423A1 (fr) 2013-03-28 2014-02-25 Élément de fixation de modules solaires à une surface de toit en pente

Publications (1)

Publication Number Publication Date
EP2979039A1 true EP2979039A1 (fr) 2016-02-03

Family

ID=48742701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14706819.1A Withdrawn EP2979039A1 (fr) 2013-03-28 2014-02-25 Élément de fixation de modules solaires à une surface de toit en pente

Country Status (5)

Country Link
US (1) US20160054030A1 (fr)
EP (1) EP2979039A1 (fr)
CA (1) CA2907906A1 (fr)
DE (2) DE202013003496U1 (fr)
WO (1) WO2014154423A1 (fr)

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DE102013207827A1 (de) 2014-10-02
WO2014154423A1 (fr) 2014-10-02
DE202013003496U1 (de) 2013-06-03
DE102013207827B4 (de) 2018-06-14
CA2907906A1 (fr) 2014-10-02
US20160054030A1 (en) 2016-02-25

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