WO2010113003A1 - A system for fixing photovoltaic modula on a covering cope - Google Patents

A system for fixing photovoltaic modula on a covering cope Download PDF

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Publication number
WO2010113003A1
WO2010113003A1 PCT/IB2010/000670 IB2010000670W WO2010113003A1 WO 2010113003 A1 WO2010113003 A1 WO 2010113003A1 IB 2010000670 W IB2010000670 W IB 2010000670W WO 2010113003 A1 WO2010113003 A1 WO 2010113003A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheets
fixing
modula
shaped profile
ridges
Prior art date
Application number
PCT/IB2010/000670
Other languages
French (fr)
Inventor
Marco Pietro Borrini
Original Assignee
Marco Pietro Borrini
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 Marco Pietro Borrini filed Critical Marco Pietro Borrini
Priority to EP10723763A priority Critical patent/EP2414602A1/en
Publication of WO2010113003A1 publication Critical patent/WO2010113003A1/en

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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
    • 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
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/61—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures
    • F24S25/615—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures for fixing to protruding parts of buildings, e.g. to corrugations or to standing seams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/40—Preventing corrosion; Protecting against dirt or contamination
    • F24S40/44—Draining rainwater or condensation
    • 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
    • F24S2025/016—Filling or spacing means; Elastic means
    • 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
    • F24S2025/801—Special profiles having hollow parts with closed cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/80—Accommodating differential expansion of solar collector elements
    • 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

  • the invention relates to the sector of the construction of photovoltaic systems on buildings.
  • the invention relates to a system for fixing photovoltaic modula on a covering cope of buildings, particularly of the box profile or corrugated metal sheet type, but also made of asbestos cement, composite resin, cement, tiles or the like.
  • systems for fixing photovoltaic panels to the covering copes of civil or industrial buildings produced with box profile or corrugated sheets, simple or composite use screw anchors or point fixing supports to be fixed by screws or rivets to the ridge of the box profiles or of the corrugations of the sheets.
  • screw anchors or point fixing supports to be fixed by screws or rivets to the ridge of the box profiles or of the corrugations of the sheets.
  • rubber seals are normally used.
  • the main drawback derives from the fact that, being produced with point fixing, the weight of the modules, but above all overloading caused by snow, tend to be concentrated in single points, causing phenomena of flattening of the sheet and of the seal and sinking of the screws into the structure in which they are fixed, with subsequent lifting when the load is removed. Combined with thermal expansions caused by variations in temperature, these phenomena cause a deterioration in the fixing systems and in water-tightness, with consequent possible detachment of the panels by tearing or infiltration of water into the roof structure. Moreover, repair operations are very difficult due to the presence of the modula, require costly temporary works to make the work area accessible and cause an interruption in operation of the system.
  • a further drawback is that they do not allow regular ventilation of the space between the photovoltaic modula and the covering cope. Ventilation of this space is instead important for maintaining the modula at acceptable temperature levels and ensuring a high electrical energy output at all times.
  • Other drawbacks consist in the fact that they decrease the structural strength of the covering cope, or in any case do not help to increase it; in the fact that they represent rigid fixing constraints that do not follow the thermal expansions of the panels; and in the fact that the fixing screws are difficult to access during assembly of the panels as the two rows of panels to be fixed must be already arranged in position and there is a risk of their becoming misaligned during tightening of the screws.
  • the invention seeks to overcome these drawbacks, by producing a system with the task of evenly distributing the weight of the system and of any accidental overloads on the covering cope, which is durable and reliable in time, which has a useful life comparable to that of the photovoltaic system, which maintains the water-tightness of the covering cope, which ensures correct ventilation of the panels, which compensates the thermal expansions of the modula and which allows easy installation of the system.
  • a system for fixing photovoltaic modula on a covering cope with sloping pitch consisting of box profile or corrugated sheets provided with a plurality of ridges and channels alternated with each other, characterized in that it comprises: - a shaped profile for distributing the load arranged parallely to the slope of the pitch and that can be fixed with reversible means to the ridges of said sheets;
  • said shaped profile comprises at least two areas for continuous support and fixing to two ridges of said sheets, and at least one flat area placed in correspondence with a channel of said sheets for supporting modula and for fixing said brackets with reversible means.
  • said flat area is raised with respect to said two areas for resting on two ridges of the sheets.
  • said at least two areas for continuous support comprise a wing, sloping towards the channel of the sheet, acting as drip means, or a hollow space for conveying humidity, water and condensate.
  • the surface of said flat area is preferably provided with a longitudinal rectilinear groove acting as linear assembling reference, or even more preferably with a hollow in the shape of a channel, also acting as drainage for water infiltration.
  • said shaped profile comprises two flat areas, placed in correspondence with a channel of said sheets, connected by a continuous structure comprising at least one face arranged for resting in a channel of the sheets.
  • said at least two areas for continuous support are flat or curved.
  • said brackets for clamping comprise Omega shaped profiles with two uprights, two wings and a core, arranged normally to the slope of the pitch.
  • the two uprights are of different length to one another.
  • said brackets comprise an elastically yielding material applied to at least one upright on the face turned towards the photovoltaic module.
  • the elastically yielding material is advantageously applied to the longer upright turned towards the ridge of the roof.
  • a preferred method for producing the shaped profile is that of using an aluminium extrusion process, although it could also be produced with other methods, such as bending of a metal sheet.
  • the invention has numerous advantages:
  • the weight of the modula and of the snow is distributed on the roof and not concentrated on the fixing screws, which are therefore subject only to shearing forces and not to vertical loads, thus resistant to extraction;
  • the fixing of the modula on the shaped profiles is separate from the fixing of the latter on the roofing sheet and as it takes place above the channels of the sheet, any water passing through the screw holes would fall into these channels and would be removed together with rainwater;
  • the presence of drip means wings or of hollow spaces of the profile allows any water infiltration or condensate to be conveyed to the channels of the roofing sheets, preventing it from passing through the fixing screw holes of the shaped profiles;
  • the fixing plane of the modula is raised with respect to the height of the ridges of the sheets, preventing interference of the modula with the fixing screws of the profiles and allowing significant ventilation under these modula;
  • Fig. 1 represents, in an axonometric view in a section orthogonal to the slope of the pitch of the roof, a system for fixing photovoltaic modula on a covering cope according to the invention
  • Fig. 2 represents, in an axonometric view in a section parallel to the slope of the pitch of the roof, and enlarged detail, the system of Fig. 1 ;
  • Figs. 3 - 8 show examples of shaped profiles that can be used for the system of Figs. 1 - 2.
  • a system for fixing photovoltaic modula 1 on a covering cope for roofs with sloping pitch composed of box profile or corrugated sheets 2 provided with a plurality of ridges 3 and channels 4 alternated with each other.
  • the system consists of a shaped profile 5 arranged in a substantially continuous manner parallely to the slope of the pitch of the roof and by brackets 7 for fixing said photovoltaic modula 1 to said shaped profile 5.
  • the shaped profile 5 can be fixed to the covering of the roof with screws 6 that pass through the sheets in correspondence with the ridges 3 and are inserted in the same wooden strips L that normally act as system for fixing the covering sheets to the pitch of the roof.
  • the shaped profile 5 comprises at least two areas 8 for continuous support and fixing to two ridges 3 of said sheets 2 and at least one flat area 9 placed in correspondence with a channel 4 of said sheets for supporting the modula 1 and for fixing said brackets 7 with screws 10.
  • the flat area 9 is raised with respect to said areas 8 for supporting two ridges 3 of the sheets 2.
  • the two areas 8 for continuous supporting and fixing reproduce the shape of the ridge 3 of the sheet 2 and can comprise a wing 11 , sloping towards the channel 4 of the sheet 2, acting as drip means.
  • these wings 11 can be absent or connected to one another and form a hollow space 19.
  • the flat area 9 has, on the surface thereof turned outwards, a small longitudinal rectilinear groove 12 for assembling reference.
  • the groove 12 can be replaced by a wider and deeper channel structure 20, also acting as drainage for infiltration rainwater.
  • FIGs. 3 and 4 show only the shaped profile, respectively in the embodiment with drip means wings 11 and reference groove 12 and in the embodiment with hollow space 19 for conveying humidity and channel shaped hollow 20.
  • FIGs. 5 and 6 show an embodiment of the shaped profile 5 comprising two flat areas 9', 9" placed in correspondence with a channel 4 of said sheets 2, where said flat areas 9', 9" are connected to each other by a continuous structure comprising at least one face 13 arranged for resting in a channel 4 of the sheets 2.
  • Figs. 7 and 8 show an embodiment of a shaped profile 5 suitable for corrugated rather than box profile roof covering sheets, in which the two areas 8 for continuous support and fixing are curved instead of having a flat surface.
  • the fixing brackets 7 of said photovoltaic modula 1 to said shaped profile 5 comprise Omega shaped continuous profiles with two uprights 14, 15, two wings 16, 17 and a core 18.
  • the upright 15 turned towards the ridge of the roof is longer than the upright 14, so that the wing 17 does not rest on the panel 1 , while the wing 16 acts as a clamp on the edge of the panel itself.
  • the face of the upright 15 turned towards the panel 1 is provided with a layer of elastically yielding material 21 , under the thrust caused by the thermal expansions to which the panel 1 is subject.
  • the shaped profile 5 can preferably be produced with an aluminium extrusion process through a negative die that determines the shape and thickness thereof without the stress caused by bending, although a simpler and more elementary method of obtaining similar but less solid profiles is obviously that of bending sheets with presses of known type. The use of the system is described below.
  • the shaped profiles 5 for load distribution are fixed parallely to the slope of the pitch with screws 6 on the ridges 3 of the sheets in correspondence with the strips L.
  • the distance between the flat supporting surfaces 9 of the rows of profiles 5 is maintained equal to the length (or width) of the photovoltaic panels.
  • the Omega shaped fixing brackets 7 are fastened with the screws 10 to the flat supporting areas 9 without yet positioning the photovoltaic panels, the first row of panels is then inserted under the higher wing 15 of the Omega shaped brackets.
  • the first row of panels is then fixed with other Omega shaped brackets placed between the first and the second row of panels, making use of the shorter upright 14 that clamps the edge of the panel.
  • the second series of panels are then inserted under the wing 17 of the longer upright 15 of the Omega shaped profile 7 and the operation described above is repeated until reaching the end of the strips of panels.

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

Abstract

A system for fixing photovoltaic modula (1 ) on a covering cope with sloping pitch, consisting of box profile or corrugated sheets (2) provided with a plurality of ridges (3) and channels (4) alternated with each other, characterized in that it comprises: a shaped profile (5) for distributing the load arranged parallel to the slope of the pitch and that can be fixed with reversible means (6) to the ridges (3) of said sheets (2); brackets (7) for clamping said photovoltaic modula (1 ) to said shaped profile (5), wherein said shaped profile (5) comprises at least two areas (8) for continuous support and fixing to two ridges (3) of said sheets (2), and at least one flat area (9) placed in correspondence with a channel (4) of said sheets (2) for supporting modula (1 ) and for fixing said brackets (7) with reversible means (10).

Description

A SYSTEM FOR FIXING PHOTOVOLTAIC MODULA ON A
COVERING COPE
* * *
The invention relates to the sector of the construction of photovoltaic systems on buildings.
More in detail, the invention relates to a system for fixing photovoltaic modula on a covering cope of buildings, particularly of the box profile or corrugated metal sheet type, but also made of asbestos cement, composite resin, cement, tiles or the like. According to prior art, systems for fixing photovoltaic panels to the covering copes of civil or industrial buildings produced with box profile or corrugated sheets, simple or composite, use screw anchors or point fixing supports to be fixed by screws or rivets to the ridge of the box profiles or of the corrugations of the sheets. To prevent water from passing through the fixing hole rubber seals are normally used.
These systems have some limits or drawbacks.
The main drawback derives from the fact that, being produced with point fixing, the weight of the modules, but above all overloading caused by snow, tend to be concentrated in single points, causing phenomena of flattening of the sheet and of the seal and sinking of the screws into the structure in which they are fixed, with subsequent lifting when the load is removed. Combined with thermal expansions caused by variations in temperature, these phenomena cause a deterioration in the fixing systems and in water-tightness, with consequent possible detachment of the panels by tearing or infiltration of water into the roof structure. Moreover, repair operations are very difficult due to the presence of the modula, require costly temporary works to make the work area accessible and cause an interruption in operation of the system. A further drawback is that they do not allow regular ventilation of the space between the photovoltaic modula and the covering cope. Ventilation of this space is instead important for maintaining the modula at acceptable temperature levels and ensuring a high electrical energy output at all times. Other drawbacks consist in the fact that they decrease the structural strength of the covering cope, or in any case do not help to increase it; in the fact that they represent rigid fixing constraints that do not follow the thermal expansions of the panels; and in the fact that the fixing screws are difficult to access during assembly of the panels as the two rows of panels to be fixed must be already arranged in position and there is a risk of their becoming misaligned during tightening of the screws.
The invention seeks to overcome these drawbacks, by producing a system with the task of evenly distributing the weight of the system and of any accidental overloads on the covering cope, which is durable and reliable in time, which has a useful life comparable to that of the photovoltaic system, which maintains the water-tightness of the covering cope, which ensures correct ventilation of the panels, which compensates the thermal expansions of the modula and which allows easy installation of the system. These aims are achieved with a system for fixing photovoltaic modula on a covering cope with sloping pitch, consisting of box profile or corrugated sheets provided with a plurality of ridges and channels alternated with each other, characterized in that it comprises: - a shaped profile for distributing the load arranged parallely to the slope of the pitch and that can be fixed with reversible means to the ridges of said sheets;
- brackets for clamping said photovoltaic modules to said shaped profile, wherein said shaped profile comprises at least two areas for continuous support and fixing to two ridges of said sheets, and at least one flat area placed in correspondence with a channel of said sheets for supporting modula and for fixing said brackets with reversible means. According to a preferred aspect of the invention, said flat area is raised with respect to said two areas for resting on two ridges of the sheets.
According to an even more preferred aspect, said at least two areas for continuous support comprise a wing, sloping towards the channel of the sheet, acting as drip means, or a hollow space for conveying humidity, water and condensate.
According to a further aspect, the surface of said flat area is preferably provided with a longitudinal rectilinear groove acting as linear assembling reference, or even more preferably with a hollow in the shape of a channel, also acting as drainage for water infiltration. According to an embodiment of the invention, said shaped profile comprises two flat areas, placed in correspondence with a channel of said sheets, connected by a continuous structure comprising at least one face arranged for resting in a channel of the sheets. According to preferred aspects, said at least two areas for continuous support are flat or curved.
Advantageously, said brackets for clamping comprise Omega shaped profiles with two uprights, two wings and a core, arranged normally to the slope of the pitch. According to a preferred aspect, the two uprights are of different length to one another.
According to an even more preferred aspect, said brackets comprise an elastically yielding material applied to at least one upright on the face turned towards the photovoltaic module. The elastically yielding material is advantageously applied to the longer upright turned towards the ridge of the roof.
A preferred method for producing the shaped profile is that of using an aluminium extrusion process, although it could also be produced with other methods, such as bending of a metal sheet. The invention has numerous advantages:
- the weight of the modula and of the snow is distributed on the roof and not concentrated on the fixing screws, which are therefore subject only to shearing forces and not to vertical loads, thus resistant to extraction; - the fixing of the modula on the shaped profiles is separate from the fixing of the latter on the roofing sheet and as it takes place above the channels of the sheet, any water passing through the screw holes would fall into these channels and would be removed together with rainwater; - the presence of drip means wings or of hollow spaces of the profile allows any water infiltration or condensate to be conveyed to the channels of the roofing sheets, preventing it from passing through the fixing screw holes of the shaped profiles;
- the fixing plane of the modula is raised with respect to the height of the ridges of the sheets, preventing interference of the modula with the fixing screws of the profiles and allowing significant ventilation under these modula;
- the linear reference groove on the fixing planes or the channel shaped hollow to receive the fixing screws of the brackets allows correct alignment of the rows of modula;
- the Omega shaped fixing brackets with one upright longer than the other allow to start fixing a row of modula using the wing associated with the shorter upright without requiring to position the subsequent row, which can be installed later, inserting it under the wing of the Omega that is slightly higher than the thickness of these modula;
- the presence of an elastically yielding material on the longer upright that comes into contact with the photovoltaic panels allows any thermal expansions to be absorbed without creating tensions in the support structure of the photovoltaic system and helping to maintain the modula in position without allowing them to vibrate even if one of the uprights does not hold the module tightly; - production of the shaped profile using aluminium extrusion allows to obtain variable thicknesses in appropriate positions, producing optimal structural strengths that also allow strengthening of the roof being used as support for the photovoltaic system; it allows to obtain longitudinal grooves and furrows acting as reference line and as surface finish; it allows to obtain profiles with dimensions and shapes adaptable to those of any roofing sheet; it allows to obtain perfectly rot-proof components. The advantages of the invention will be more apparent below, in the description of preferred embodiments, provided by way of non-limiting example, and with the aid of the figures, wherein:
Fig. 1 represents, in an axonometric view in a section orthogonal to the slope of the pitch of the roof, a system for fixing photovoltaic modula on a covering cope according to the invention;
Fig. 2 represents, in an axonometric view in a section parallel to the slope of the pitch of the roof, and enlarged detail, the system of Fig. 1 ;
Figs. 3 - 8 show examples of shaped profiles that can be used for the system of Figs. 1 - 2. With reference to Figs. 1 and 2, there is shown a system for fixing photovoltaic modula 1 on a covering cope for roofs with sloping pitch composed of box profile or corrugated sheets 2 provided with a plurality of ridges 3 and channels 4 alternated with each other. In this particular case, the system consists of a shaped profile 5 arranged in a substantially continuous manner parallely to the slope of the pitch of the roof and by brackets 7 for fixing said photovoltaic modula 1 to said shaped profile 5.
The shaped profile 5 can be fixed to the covering of the roof with screws 6 that pass through the sheets in correspondence with the ridges 3 and are inserted in the same wooden strips L that normally act as system for fixing the covering sheets to the pitch of the roof.
The shaped profile 5 comprises at least two areas 8 for continuous support and fixing to two ridges 3 of said sheets 2 and at least one flat area 9 placed in correspondence with a channel 4 of said sheets for supporting the modula 1 and for fixing said brackets 7 with screws 10. The flat area 9 is raised with respect to said areas 8 for supporting two ridges 3 of the sheets 2.
The two areas 8 for continuous supporting and fixing reproduce the shape of the ridge 3 of the sheet 2 and can comprise a wing 11 , sloping towards the channel 4 of the sheet 2, acting as drip means.
Alternatively, these wings 11 can be absent or connected to one another and form a hollow space 19.
The flat area 9 has, on the surface thereof turned outwards, a small longitudinal rectilinear groove 12 for assembling reference. Alternatively, the groove 12 can be replaced by a wider and deeper channel structure 20, also acting as drainage for infiltration rainwater.
With reference to Figs. 3 and 4, these show only the shaped profile, respectively in the embodiment with drip means wings 11 and reference groove 12 and in the embodiment with hollow space 19 for conveying humidity and channel shaped hollow 20. With reference in particular to Figs. 5 and 6, these show an embodiment of the shaped profile 5 comprising two flat areas 9', 9" placed in correspondence with a channel 4 of said sheets 2, where said flat areas 9', 9" are connected to each other by a continuous structure comprising at least one face 13 arranged for resting in a channel 4 of the sheets 2.
Figs. 7 and 8 show an embodiment of a shaped profile 5 suitable for corrugated rather than box profile roof covering sheets, in which the two areas 8 for continuous support and fixing are curved instead of having a flat surface.
The fixing brackets 7 of said photovoltaic modula 1 to said shaped profile 5 comprise Omega shaped continuous profiles with two uprights 14, 15, two wings 16, 17 and a core 18. The upright 15 turned towards the ridge of the roof is longer than the upright 14, so that the wing 17 does not rest on the panel 1 , while the wing 16 acts as a clamp on the edge of the panel itself. The face of the upright 15 turned towards the panel 1 is provided with a layer of elastically yielding material 21 , under the thrust caused by the thermal expansions to which the panel 1 is subject. The shaped profile 5 can preferably be produced with an aluminium extrusion process through a negative die that determines the shape and thickness thereof without the stress caused by bending, although a simpler and more elementary method of obtaining similar but less solid profiles is obviously that of bending sheets with presses of known type. The use of the system is described below.
The shaped profiles 5 for load distribution are fixed parallely to the slope of the pitch with screws 6 on the ridges 3 of the sheets in correspondence with the strips L. The distance between the flat supporting surfaces 9 of the rows of profiles 5 is maintained equal to the length (or width) of the photovoltaic panels. Starting from the bottom, the Omega shaped fixing brackets 7 are fastened with the screws 10 to the flat supporting areas 9 without yet positioning the photovoltaic panels, the first row of panels is then inserted under the higher wing 15 of the Omega shaped brackets. The first row of panels is then fixed with other Omega shaped brackets placed between the first and the second row of panels, making use of the shorter upright 14 that clamps the edge of the panel. The second series of panels are then inserted under the wing 17 of the longer upright 15 of the Omega shaped profile 7 and the operation described above is repeated until reaching the end of the strips of panels.
Naturally, the constructional details, the dimensions, the thicknesses and the embodiments can be widely varied with respect to those described and illustrated, without however departing from the scope of the present invention, as described, illustrated and claimed.

Claims

1. A system for fixing photovoltaic modula (1) on a covering cope with sloping pitch, consisting of box profile or corrugated sheets (2) provided with a plurality of ridges (3) and channels (4) alternated with each other, characterized in that it comprises:
- a shaped profile (5) for distributing the load arranged parallel to the slope of the pitch and that can be fixed with reversible means (6) to the ridges (3) of said sheets (2);
- brackets (7) for clamping said photovoltaic modula (1) to said shaped profile (5), wherein said shaped profile (5) comprises at least two areas (8) for continuous support and fixing to two ridges (3) of said sheets (2), and at least one flat area (9) placed in correspondence with a channel (4) of said sheets (2) for supporting modula (1 ) and for fixing said brackets (7) with reversible means (10).
2. A system according to claim 1 , characterized in that said flat area (9) is raised with respect to said areas (8) which are resting on two ridges (3) of the sheets (2).
3. A system according to claim 1 , characterized in that said at least two areas (8) for continuous support comprise a wing (11) sloping towards the channel (4) of the sheet (2), acting as drip means.
4. A system according to claim 1 , characterized in that said shaped profile (5) comprises hollow spaces (19) for conveying humidity.
5. A system according to claim 1 , characterized in that the surface of said flat area (9) comprises a longitudinal rectilinear groove (12) acting as a linear assembling reference.
6. A system according to claim 1 , characterized in that the surface of said flat area (9) comprises a hollow in the shape of a channel (20) acting both as a linear assembling reference and as drainage for infiltration water.
7. A system according to claim 1 , characterized in that said shaped profile (5) comprises two flat areas (9', 9") placed in correspondence with a channel (4) of said sheets (2), connected by a continuous structure comprising at least one face (13) arranged for resting in a channel (4) of the sheets (2).
8. A system according to claim 1 , characterized in that said at least two areas (8) for continuous support and fixing are flat or curved.
9. A system according to claim 1 , characterized in that said brackets (7) for clamping comprise Omega shaped profiles with two uprights (14, 15), two wings (16, 17) and a core (18).
10. A system according to claim 9, characterized in that the two uprights (14, 15) are of different length one to the other.
11. A system according to claim 9, characterized in that said brackets (7) comprise an elastically yielding material (21 ), applied to at least one upright on the face turned towards the photovoltaic modulus.
12. A system according to claim 11 , characterized in that said elastically yielding material (21 ) is advantageously applied to the longer upright (15), turned towards the ridge of the roof.
13. A system according to claim 1 , characterized in that said shaped profile (5) is obtained by extrusion.
PCT/IB2010/000670 2009-03-30 2010-03-25 A system for fixing photovoltaic modula on a covering cope WO2010113003A1 (en)

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EP10723763A EP2414602A1 (en) 2009-03-30 2010-03-25 A system for fixing photovoltaic modula on a covering cope

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ITCR2009A000009A IT1393630B1 (en) 2009-03-30 2009-03-30 SYSTEM FOR FIXING PHOTOVOLTAIC MODULES TO A COVERAGE COVER
ITCR2009A000009 2009-03-30

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JP2012149441A (en) * 2011-01-19 2012-08-09 Otake Nagoya Co Ltd Solar panel mount for slate roof
ITBO20110080A1 (en) * 2011-02-24 2012-08-25 Tecnocoperture Tangorra S R L DEVICE FOR SUPPORTING PANELS OVER A COVERAGE
ITBO20110119A1 (en) * 2011-03-10 2012-09-11 Tecnocoperture Tangorra S R L DEVICE FOR FIXING PANELS OVER A COVERAGE
ITRE20110029A1 (en) * 2011-05-02 2012-11-03 Alubel S P A SUPPORT DEVICE FOR PANELS
FR2982352A1 (en) * 2011-11-03 2013-05-10 3I Plus DEVICE FOR FIXING A PHOTOVOLTAIC ELEMENT.
JP2013136929A (en) * 2011-12-28 2013-07-11 Okuma Corp Instrument for mounting photovoltaic power generation panel unit and method for mounting photovoltaic power generator using the instrument
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JP2016102342A (en) * 2014-11-28 2016-06-02 株式会社茂山組 Frame for roof, and fixing method for fixing object to roof
EP3690347A1 (en) * 2019-01-30 2020-08-05 Energiewendeplaner GmbH Solar assembly and holding device for mounting at least one solar module to a support
US11333179B2 (en) 2011-12-29 2022-05-17 Rmh Tech Llc Mounting device for nail strip panels
AU2020256433B2 (en) * 2014-09-29 2022-10-13 Rmh Tech Llc Mounting device for building surfaces having elongated mounting slot
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ITVE20100063A1 (en) * 2010-12-14 2012-06-15 Marcegaglia Buildtech S R L METHOD OF ASSEMBLY OF A PHOTOVOLTAIC MODULE ON A DEEP HINGED COVER PANEL AND MEANS TO IMPLEMENT THE METHOD.-
WO2012095413A1 (en) * 2011-01-12 2012-07-19 Mounting Systems Gmbh Fastening system for mounting solar modules on a trapezoidal sheet
JP2012149441A (en) * 2011-01-19 2012-08-09 Otake Nagoya Co Ltd Solar panel mount for slate roof
ITBO20110080A1 (en) * 2011-02-24 2012-08-25 Tecnocoperture Tangorra S R L DEVICE FOR SUPPORTING PANELS OVER A COVERAGE
US11885139B2 (en) 2011-02-25 2024-01-30 Rmh Tech Llc Mounting device for building surfaces having elongated mounting slot
ITBO20110119A1 (en) * 2011-03-10 2012-09-11 Tecnocoperture Tangorra S R L DEVICE FOR FIXING PANELS OVER A COVERAGE
ITRE20110029A1 (en) * 2011-05-02 2012-11-03 Alubel S P A SUPPORT DEVICE FOR PANELS
EP2533300A3 (en) * 2011-06-08 2014-10-08 Dietrich Rieth Solar roof
FR2982352A1 (en) * 2011-11-03 2013-05-10 3I Plus DEVICE FOR FIXING A PHOTOVOLTAIC ELEMENT.
FR2982350A1 (en) * 2011-11-03 2013-05-10 3I Plus Fastening device for fastening solar panel on roof of e.g. industry, has spacer for smoldering two successive corrugations, where lower part of spacer represents shape that is formed partial complementary to corrugations
JP2013136929A (en) * 2011-12-28 2013-07-11 Okuma Corp Instrument for mounting photovoltaic power generation panel unit and method for mounting photovoltaic power generator using the instrument
US12018861B2 (en) 2011-12-29 2024-06-25 Rmh Tech Llc Mounting device for nail strip panels
US11333179B2 (en) 2011-12-29 2022-05-17 Rmh Tech Llc Mounting device for nail strip panels
FR2996384A1 (en) * 2012-10-01 2014-04-04 Benoit Rouviere Assembling and fixing device for use with solar panel assembly for e.g. assembling solar panel on roof of industrial building, has securing units for securing panels on plates that are arranged along panels and parallel to edges of roof
AU2020256433B2 (en) * 2014-09-29 2022-10-13 Rmh Tech Llc Mounting device for building surfaces having elongated mounting slot
JP2016102342A (en) * 2014-11-28 2016-06-02 株式会社茂山組 Frame for roof, and fixing method for fixing object to roof
US11573033B2 (en) 2016-07-29 2023-02-07 Rmh Tech Llc Trapezoidal rib mounting bracket with flexible legs
US11808043B2 (en) 2016-10-31 2023-11-07 Rmh Tech Llc Metal panel electrical bonding clip
US11774143B2 (en) 2017-10-09 2023-10-03 Rmh Tech Llc Rail assembly with invertible side-mount adapter for direct and indirect mounting applications
US11616468B2 (en) 2018-03-21 2023-03-28 Rmh Tech Llc PV module mounting assembly with clamp/standoff arrangement
US11668332B2 (en) 2018-12-14 2023-06-06 Rmh Tech Llc Mounting device for nail strip panels
EP3690347A1 (en) * 2019-01-30 2020-08-05 Energiewendeplaner GmbH Solar assembly and holding device for mounting at least one solar module to a support
US11739529B2 (en) 2020-03-16 2023-08-29 Rmh Tech Llc Mounting device for a metal roof
US11965337B2 (en) 2020-03-16 2024-04-23 Rmh Tech Llc Mounting device for a metal roof
US11512474B2 (en) 2020-03-16 2022-11-29 Rmh Tech Llc Mounting device for a metal roof
US11788291B2 (en) 2020-03-17 2023-10-17 Rmh Tech Llc Mounting device for controlling uplift of a metal roof
WO2022243959A3 (en) * 2021-05-21 2022-12-29 Niccons Italy Srl Support element for photovoltaic panel
IT202100013262A1 (en) * 2021-05-21 2022-11-21 Niccons Italy Srl SUPPORT ELEMENT FOR PHOTOVOLTAIC PANELS AND MODULAR PHOTOVOLTAIC APPARATUS INCLUDING SAID SUPPORT ELEMENT

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ITCR20090009A1 (en) 2010-09-30
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