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WO2024177494A1 - Système de fixation de modules photovoltaïques sur des toits en tôle trapézoïdale - Google Patents

Système de fixation de modules photovoltaïques sur des toits en tôle trapézoïdale Download PDF

Info

Publication number
WO2024177494A1
WO2024177494A1 PCT/MX2023/050010 MX2023050010W WO2024177494A1 WO 2024177494 A1 WO2024177494 A1 WO 2024177494A1 MX 2023050010 W MX2023050010 W MX 2023050010W WO 2024177494 A1 WO2024177494 A1 WO 2024177494A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixing
trapezoidal sheet
photovoltaic modules
trapezoidal
receive
Prior art date
Application number
PCT/MX2023/050010
Other languages
English (en)
Spanish (es)
Inventor
Arturo Javier SANTANA CISNEROS
Jesús HILL DE LA TORRE
Original Assignee
Santana Cisneros Arturo Javier
Hill De La Torre Jesus
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 Santana Cisneros Arturo Javier, Hill De La Torre Jesus filed Critical Santana Cisneros Arturo Javier
Publication of WO2024177494A1 publication Critical patent/WO2024177494A1/fr

Links

Classifications

    • 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
    • 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
    • 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
    • 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 present invention is related to systems for fixing plates mounted on sheet metal roofs and, in particular, is related to the fixing of photovoltaic modules on trapezoidal sheet metal roofs.
  • support structures for photovoltaic modules or panels specially designed and configured to fix them through their aluminum frames either on flat surfaces such as concrete roofs or on previously leveled ground, on inclined roofs such as industrial roofs that allow the solar panels to be placed depending on the required degree of inclination, among other structures.
  • the support structures of the photovoltaic modules specially designed and configured for fixing them through their aluminum frames requires a surface where they can be fixed to support and keep them in an elevated position and with a certain arrangement.
  • the present invention is directed to a system for fixing photovoltaic panels on sheet metal roofs.
  • the structure consists of a ceiling fixture 10, a horizontal rail 15, fixtures 20j, 20k for the horizontal rail and a module fixture 25.
  • the ceiling fixture 10 has a groove strip at the center of an upper surface in a longitudinal direction, the fixtures 20j, 20k for the horizontal rail can fix the horizontal rail 15 placed on the ceiling fixture 10.
  • the fixture 20k for the horizontal rail is incorporated with a slider 21, sliding the slider 21 in a longitudinal direction of the ceiling fixture 10.
  • the horizontal rail 15 has a grooved strip part at a substantial center of an upper surface in a longitudinal direction in which upright parts 19, 19 are formed on both side edges of the grooved strip part, and a corner of the lower edge of a grooved strip part is formed.
  • P solar cell module fits into a corner formed by both sides and the top surface and can be located on the horizontal rail 15.
  • the module fixture 25 can clamp and fix the bottom surfaces of both sides of the slot strip portion of the horizontal rail 15 and an upper surface of an edge of the solar cell module P.
  • roof fixing bracket 10 which consists of a rail-type structure having a length of approximately 200 mm, arranged and fixed in a row in the direction of the flow of the roof which is fixed to the roof with screws and a pair of cross fixing accessories 20j, 20k incorporating a sliding metal accessory 21, inserted and fastened in an upper slot 11 of the roof fixing bracket 10 and which rests on and holds the lower edges 18 of a cross rail 15 which is mounted transversely on said roof fixing brackets 10.
  • the number of cross rails 15 is also determined according to the number of solar panel modules to be installed. Furthermore, said cross rails 15 have a special configuration, comprising a groove portion 16 substantially in the center in the longitudinal direction of the upper surface thereof, furthermore a space portion 17 is provided below the groove portion 16, and the groove portion 16 is provided on both side edges of the cross rail 15. Vertical portions 19 and 19 extending upward are formed. The corner of the edge of the module fits into the corner of the vertical portion 19 and the upper surface portion 19h of the cross member.
  • the nut 27 of the bolt 26 of the fixing bracket 25 of the solar cell module P described later is fitted into the space portion 17, and the edge portion of the module is fixed.
  • a groove portion 19m is formed near the vertical portion 19, and the groove portion 19m is a water path.
  • it is a drainage ditch or drainage channel for water, such as rainwater, to flow to the end of the 15th crossbeam.
  • the cross rails 15 are fixed on the roof fixing bracket 10 by the above-mentioned cross fixing tools 20j, 20k in a plurality of stages, the solar cell module P is placed on these cross rails 15 and is fixed by means of the fixing bracket 25 of the solar cell module.
  • a side cover 30 is attached over the cross rail 15.
  • Said fixing bracket 25 of the solar cell module P is composed of a bolt 26 and a nut 27, a pressing part 28 through which the shaft part of the bolt 26 is inserted and a fitting 29 attached immediately below the pressing part 28.
  • document JP2018080486 achieves the purpose of fixing solar cell modules on roofs, there are many elements used for its fixing and they are of complex structure, the installation method is complex, time-consuming and impractical for installers and requires several stages to achieve the installation and fixing of the solar panel cells. It does not include anti-f i Itrac i ó n sealing elements, that is, it does not include, as in the case of our invention, a i s I a n te - s e 11 a d o r tapes for the purpose of creating a hermetic seal.
  • a second fixing element 30b includes: a top side support piece 32 and a second top side support piece 33 capable of abutting an upper face of a solar cell module 2; a rod 31 extending downward from the center thereof; a bottom side support piece 37 extending to be longer than the second top side support piece 33 and capable of abutting the bottom side of the solar cell module 2; and a joining piece 38 that can be placed on a beam member 20 so that a predetermined space is formed between the bottom side support piece 37 and the beam member 20.
  • a second fixing element 30b includes: a positioning piece 36 that is arranged on the opposite side with respect to the bottom side contact piece 37 with the rod 31 therebetween and on which the solar cell module 2 is placed; and a clamping piece 39 arranged between the joining piece 38 and the beam member 20.
  • a fastener 26 having a head portion 26b which is inserted into an inverted T-shaped slot of the beam member 20 without being able to rotate, so that the male screw portion 26a of the fastener 26, such as the root angle bolt, protrudes from the top of the surface, and the crossbeam 20, and can be fastened so that it can slide in the longitudinal direction.
  • the fastener 26 is not fixed in the inverted T-shaped slot of the beam member 20, but has axial movement, which makes the fastening unstable. As shown in FIGS.
  • the fixing means 30 fixes the solar cell module 2 installed on the plurality of cross members 20, and the first fixing member 30a and the second fixing member 30b are provided with a clamping member 26 held by the cross member 20 and a clamping member or nut 28 for clamping the clamping member 26.
  • the fixing system as already described is extremely complex, requires many parts for installation, is not safe, firm and is unstable; in addition to not showing how the cross element 20 is fixed on a surface, as can be seen in figure 1 of said document, combinations of fixed parts are required on the cross element 20 when they are positioned in an intermediate area to hold attached panels and a different combination to hold the edges of extreme solar panels.
  • the threading of the clamping element 26 with the clamping element or nut 28 is complex because the latter is housed inside the first clamping element 30a.
  • Another main objective of the invention is to provide said system for fixing photovoltaic modules on trapezoidal sheet roofs, which allows adjusting the small variations in thickness in the roofs where it is fixed, and which also uses hemispherical washers together with the fixing means that allow it not to deform and which contain ethylene propylene diene rubber or EPDM (Ethylene Propylene Diene type M ASTM) inside so that it is not damaged and is protected from the weather to increase its life time.
  • EPDM Ethylene Propylene Diene type M ASTM
  • Another objective of the invention is to provide said system for fixing photovoltaic modules on trapezoidal sheet roofs, which also prevents water leaks through the perforations made for their fixing.
  • Another objective of the invention is to provide said system for fixing photovoltaic modules on trapezoidal sheet roofs, which is also structurally simple, practical and functional.
  • Another objective of the investment is to provide fixing means that fix the grooved profile on the crests of the trapezoidal sheets of sheet metal roofs, which consist of self-threading pins from which the threads are removed from the end part, the area closest to the screw head, helping to prevent the piece from coming out of the hole, and in the event of being swept away, it keeps the rail as a fixed joining piece.
  • the system for fixing photovoltaic modules on trapezoidal sheet roofs in accordance with the preferred embodiment of the invention consists of modular units defined by a grooved profile that defines a longitudinal central channel on its upper face and two lateral protruding arms configured with a recess or longitudinal channel on its lower face to receive insulating sealing tapes, which in its preferred embodiment is an ethylene propylene diene rubber (EPDM) tape, in order to create a waterproof, hermetic seal against the trapezoidal sheet where it is to be fixed and preferably arranged on the crest of the trapezoidal sheet roof; furthermore, said lateral arms comprise through holes configured to receive fixing means that preferably comprise sealing and gripping means.
  • sealing washers which in their preferred form are made of ethylene propylene diene rubber (EPDM) and on which stainless steel washers are placed to generate a firm, secure and waterproof hold.
  • Said longitudinal central channel of the upper face of the grooved profile is configured to receive fastening clips for holding the side edges of solar panels.
  • each lateral protruding arm of said grooved profile comprises at least three fixing means on its upper face.
  • ends of said grooved profiles comprise cover caps designed to receive identification information.
  • the clamping means are defined by an upper clamping body having two laterally opposite flanges and two parallel legs projecting internally, further comprising a central hole configured to receive a fastening means that extends internally between said parallel legs projecting internally and whose lower threaded end penetrates a threaded hole of a gripping nut that is arranged in the longitudinal channel of said grooved profile and is rotated to be placed in a gripping position on the rails arranged on both internal faces of said longitudinal channel of the grooved profile; a spring element surrounds said fastening means to keep said clamping body in an elevated position, and where once the photovoltaic panels are placed, said fastening means is rotated, screwed and tightened so that the lateral flanges of said upper clamping body hold the edges of said photovoltaic panels.
  • Said fastening clips also comprise, on the upper face of the laterally opposite flanges of said upper fastening body, through holes for inserting conical-pointed clamping bolts which are responsible for gently cracking the anodizing of the aluminum frame of the solar panel which is pressed, secured and held with said laterally opposite flanges; this allows the electrical continuity of the photovoltaic panels or modules with the entire reinforced mounting structure.
  • a plurality of modular units of the fixing system Photovoltaic panels are fixed to the sheets of a roof in positions and distribution required to support a plurality of grooved profiles that are distributed in rows or tiers and said grooved profiles are configured to receive a plurality of fastening clips that are housed in the longitudinal channel of the grooved profile and are secured to hold the lateral, front or rear edges of the photovoltaic panels that overlap and rest on said grooved profiles.
  • the present description is accompanied, as an integral part thereof, by drawings with an illustrative but non-limiting character, which are described below.
  • Figure 1 shows an exploded view of the system for fixing photovoltaic modules on trapezoidal sheet roofs in accordance with the preferred embodiment of the invention.
  • Figure 2 shows a side view of the system for fixing photovoltaic modules on trapezoidal sheet metal roofs, installed on a sheet metal roof in accordance with the preferred embodiment of the invention.
  • Figure 3 shows a conventional perspective view of the photovoltaic module fixing system on trapezoidal sheet roofs, installed on a sheet roof in accordance with the preferred embodiment of the invention.
  • Figure 4 shows a top view of a trapezoidal sheet roof where solar modules have been installed and fastened with modular units of the photovoltaic panel fixing system in accordance with the preferred embodiment of the invention.
  • Figure 5 shows a conventional perspective view of a trapezoidal sheet roof where solar modules have been installed and fastened with modular units of the photovoltaic panel fixing system in accordance with the preferred embodiment of the invention.
  • Figures 6 and 7 show an exploded view and a front perspective view, respectively, of the fixing means that fix the corrugated profile to the crests of the trapezoidal sheet roofing sheets, in accordance with the preferred embodiment of the invention.
  • the system for fixing photovoltaic modules on trapezoidal sheet roofs in accordance with the preferred embodiment of the invention consists of modular units "A" defined by a grooved profile (1) that defines a longitudinal central channel (2) on its upper face and two lateral protruding arms (3) configured with a recess or longitudinal channel (4) on its lower face to receive a i s I a n te - s e 11 a d o r strips (5), which in its preferred embodiment is an ethylene propylene diene rubber (EPDM) strip, in order to create a hermetic seal against the surface of the ridges (6, see Figure 2) of the trapezoidal sheets (7, see Figure 2) of the sheet roof (8, see Figures 4 and 5) where it is to be fixed;
  • said lateral projecting arms (3) comprise through holes (9) configured to receive fixing means (10) comprising sealing washers (11), which in their preferred embodiment are made of ethylene propylene diene rubber (EPDM) and on which stainless steel washer
  • Said longitudinal central channel (2) of the upper face of the grooved profile (1) is configured to receive fastening clips (13) to hold the side edges of photovoltaic modules. (27, see figures 4 and 5).
  • Said clamping clips (13) are defined by an upper clamping body (14) having two laterally opposite flanges (15) and two parallel legs (16) projecting internally, further comprising a central hole configured to receive a fixing means (17) extending internally between said parallel legs (16) projecting internally and whose lower threaded end penetrates a threaded hole of a gripping nut (18) which is arranged in the longitudinal central channel (2) of said grooved profile (1) and is rotated to be placed in a gripping position on the rails
  • Said fastening clips (13) also comprise on the upper face of the laterally opposite flanges (15) of said upper fastening body (14), through holes for inserting conical-pointed oppressor bolts (21) that are responsible for gently cracking the anodizing of the aluminum frame of the solar panel that is pressed, secured and held with said laterally opposite flanges. opposite (15); this allows the electrical continuity of the photovoltaic modules (27) with the entire reinforced mounting structure.
  • ground wire holding jaws 22, see figure 3 which are secured to the longitudinal central channel (2) by means of a fixing means (24); wherein said holding jaws (22) comprise a through hole in their upper face configured to receive a presser (25) which presses and holds the ground wire (23, see figure 3) which connects the different groups of photovoltaic modules in different arrangements.
  • the holding jaws (22) have a tin coating to prevent galvanic shock.
  • the ends of said grooved profiles (1) comprise cover caps (26) designed to receive identification information.
  • an arrangement of a plurality of photovoltaic modules (27) is arranged superimposed and held by a plurality of modular units (A) of the photovoltaic module fixing system and are distributed as required and according to the dimensions of the photovoltaic modules (27) where a plurality of grooved profiles (1) are distributed in rows or tiers and said grooved profiles (1) are configured to be fixed in the trapezoidal sheets (7) as already shown and described in figures 1 to 3, where a plurality of fastening clips (13) are housed in the longitudinal central channel (2) of said grooved profiles (1) and are secured to hold the lateral edges of the photovoltaic modules (27).
  • the fixing means (10) that fix the grooved profile (1) on the crests (6) of the trapezoidal sheets (7) of trapezoidal sheet roofs are defined by a head (28), preferably hexagonal with a perimeter flange (29) at the base of the head (28) and a central cylindrical body projected internally (30) that defines a first smooth upper section (30a) of greater diameter, followed by a second lower section (30b) of smaller diameter, defining a slight slope in the transition zone (30c) and a conical end section with outer chord (30d).
  • said first smooth upper section (30a) of larger diameter of the internally projected central cylindrical body (30) is configured to receive a sealing washer (11) and a stainless steel washer (12) that abut and press against said perimeter flange (29) at the base of the head (28) and where the conical end section with outer cord (30d) pierces, penetrates and is held in the wall of a certain thickness of the body of the surface of the ridges (6, see figure 2) of the trapezoidal sheets (7, see figure 2) of the sheet metal roof (8, see figures 4 and 5).

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  • 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)

Abstract

La présente invention concerne un système de fixation de modules photovoltaïques sur des toits en tôle trapézoïdale, caractérisé en ce qu'il comprend des unités modulaires définies par un profilé ondulé qui définit un canal central longitudinal sur sa face supérieure et deux bras saillants latéraux conçus avec un ressaut ou canal longitudinal sur sa face inférieure pour recevoir des bandes d'isolants d'étanchéité et préférablement sur la crête du toit de tôle trapézoïdale ; en outre, lesdits bras latéraux comprennent des trous traversants conçus pour recevoir des moyens de fixation avec des moyens de scellement et d'accrochage pour générer une fixation ferme et imperméable ; ledit canal central longitudinal de la face supérieure du profilé ondulé étant conçu pour recevoir des agrafes de fixation pour fixer les bords latéraux de panneaux solaires.
PCT/MX2023/050010 2023-02-24 2023-02-28 Système de fixation de modules photovoltaïques sur des toits en tôle trapézoïdale WO2024177494A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MXMX/A/2023/002404 2023-02-24
MX2023002404A MX2023002404A (es) 2023-02-24 2023-02-24 Sistema de fijacion de modulos fotovoltaicos en techos de lamina trapezoidal.

Publications (1)

Publication Number Publication Date
WO2024177494A1 true WO2024177494A1 (fr) 2024-08-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MX2023/050010 WO2024177494A1 (fr) 2023-02-24 2023-02-28 Système de fixation de modules photovoltaïques sur des toits en tôle trapézoïdale

Country Status (2)

Country Link
MX (1) MX2023002404A (fr)
WO (1) WO2024177494A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0905795A2 (fr) * 1997-09-24 1999-03-31 Matsushita Electric Works, Ltd. Dispositif de fixation pour l'installation de modules de batteries solaires en forme de panneaux sur un toit
WO2003098126A1 (fr) * 2002-05-17 2003-11-27 Alcoa Nederland B.V. Supports de panneaux solaires
FR2944817A1 (fr) * 2009-04-23 2010-10-29 Alain Roger Surzur Dispositif de fixation sans percage d'un rail profile sur une surface inclinee et de panneaux photovoltaiques sur ce meme rail profile impermeable
CN215734108U (zh) * 2021-09-30 2022-02-01 云神和新能源科技(苏州)有限公司 一种适于屋顶面的光伏面板支架

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0905795A2 (fr) * 1997-09-24 1999-03-31 Matsushita Electric Works, Ltd. Dispositif de fixation pour l'installation de modules de batteries solaires en forme de panneaux sur un toit
WO2003098126A1 (fr) * 2002-05-17 2003-11-27 Alcoa Nederland B.V. Supports de panneaux solaires
FR2944817A1 (fr) * 2009-04-23 2010-10-29 Alain Roger Surzur Dispositif de fixation sans percage d'un rail profile sur une surface inclinee et de panneaux photovoltaiques sur ce meme rail profile impermeable
CN215734108U (zh) * 2021-09-30 2022-02-01 云神和新能源科技(苏州)有限公司 一种适于屋顶面的光伏面板支架

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"05V Soporte Coplanar Microrail para Placas Solares para Cubierta Metálica 05V", TEKNOSOLAR.COM, 1 February 2023 (2023-02-01), pages 1 - 2, XP009557191, Retrieved from the Internet <URL:https://web.archive.org/web/20230201223727/https://www.teknosolar.com/soporte-en-microrail-para-placas-solares-para-cubierta-inclinada> [retrieved on 20231116] *
ANONYMOUS: "Nuestras novedades 2022", K2-SYSTEMS.COM, 10 May 2022 (2022-05-10), pages 1 - 8, XP093206542, Retrieved from the Internet <URL:https://k2-systems.com/es/empresa/noticias/nuestras-novedades-2022> *
MARTIN GONZALEZ: "Clases de tornillos y fijaciones para cubiertas", LA CASA POR EL TEJADO, August 2019 (2019-08-01), pages 1 - 4, XP009557192, Retrieved from the Internet <URL:https://www.indafer.com/lacasaporeltejado/2019/08/clases-de-tornillos-y-fijaciones-para-cubiertas/> [retrieved on 20231116] *

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