WO2011012097A1 - Supporting structure for photovoltaic devices for stiffened surfaces - Google Patents

Supporting structure for photovoltaic devices for stiffened surfaces Download PDF

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Publication number
WO2011012097A1
WO2011012097A1 PCT/CZ2010/000089 CZ2010000089W WO2011012097A1 WO 2011012097 A1 WO2011012097 A1 WO 2011012097A1 CZ 2010000089 W CZ2010000089 W CZ 2010000089W WO 2011012097 A1 WO2011012097 A1 WO 2011012097A1
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WO
WIPO (PCT)
Prior art keywords
supporting
supporting structure
stiffened
leg
supporting beam
Prior art date
Application number
PCT/CZ2010/000089
Other languages
French (fr)
Inventor
Petr HOŘÁNEK
Original Assignee
Horanek Petr
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 Horanek Petr filed Critical Horanek Petr
Publication of WO2011012097A1 publication Critical patent/WO2011012097A1/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
    • H02S20/10—Supporting structures directly fixed to the ground
    • 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
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • 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
    • F24S25/617—Elements driven into the ground, e.g. anchor-piles; Foundations for supporting elements; Connectors for connecting supporting structures to the ground or to flat horizontal surfaces
    • 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
    • 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 technical solution refers to a supporting structure for solar panels and belongs to the domain of assembling or supporting devices for solar panels.
  • the supporting structures for the solar panels are well known in many variants and realisations. As yet however, the supporting structures are used in non-stiffened terrain predominantly.
  • Such structures are known e.g. from the specifications CZ 19145 or CZ 19663.
  • the supporting structures, described here consist of a fundamental triangular structure, placed on two legs, and differ mutually by the angle of setting and by the shape of the fundamental triangular structure.
  • these structures can be installed on grips fastened to a stiffened surface.
  • fastened surfaces are airports out of use or concrete surfaces in old industrial grounds.
  • the application of these structures on stiffened surfaces is not too advantageous because they are needlessly sturdy and expensive for these applications consequently.
  • the sturdiness and higher weight of these structures can be a hindrance for installation on building roofs.
  • the substance of the technical solution consists in making up a stable supporting structure with using the minimum of structural parts.
  • the supporting structure can be utilised for installations on roofs advantageously, also the low weight of such structure is important.
  • the supporting beam is located askew with respect to the horizontal plane, i.e. with regard to the intended geographical zone the structure ought to be installed in and the Sun elevation over the horizon in said zone.
  • the supporting beam is tilted in the extent of 10° to 45° against the horizontal plane. For the middle Europe, the inclinations of about 25° are used. In its higher located rear part, the supporting beam is attached to the leg. In its lower located middle part, the supporting beam is fastened to the front grip.
  • the supporting beam is adapted to fasten of at least one assembling beam and/or a solar panel.
  • the supporting beam has several holes in its top edge, which are used to rectify the fastening of the assembling beam and/or of the solar panel.
  • a variant with one longish hole can be considered, instead of some round holes.
  • attaching the assembling beam and/or the solar panel to the supporting beam e.g. by means of an ordinary screw U-clamp etc.
  • An aluminium prefabricated beam, open on its top edge, is used as the assembling beam usually.
  • the supporting structure is joined to at least one adjacent supporting structure.
  • the supporting structures are joined with one front transverse girder, joined to the front grips of structures, and with one rear transverse girder, joined to legs of the structures.
  • the individual supporting structures can be joined mutually by means of an assembling beam and/or a solar panel or with an auxiliary brace.
  • the auxiliary brace serves to stiffen the structures against side influences. It is about the co called wind bracing.
  • the auxiliary brace is cross- shaped and can be made up e.g. of metal beams or steel cables. In the case of an array, composed of many supporting structures, the auxiliary brace is placed between the end pairs of the supporting structures at the beginning and the end of the array.
  • the junction of supporting structures proves also to be advantageous in following repeating combination: supporting structure - front transverse girder and the rear transverse girder - supporting structure - auxiliary brace - supporting structure - front transverse girder and the rear transverse girder - supporting structure ... Then on this array the assembling beams are placed with installed solar panels and/or here the solar panels are located directly.
  • the whole supporting structure can be attached firmly to the stiffened surface directly or by means of an auxiliary frame.
  • the direct junction can be made by making use of ordinary connecting elements (e.g. screws or a so called chemical anchor) in the bottom part of the front grip and of the leg.
  • the transverse girders the supporting structures are fastened on can be clamped to the stiffened surface.
  • the junction by means of the auxiliary frame is used especially in case the supporting structures are installed on flat roofs with trapezoidal surface when the weight of the supporting structures must be distributed in order pro prevent the deformation and damage of trapezes.
  • the supporting structures can be attached to concrete blocks which are put down on the roof. By it, the satisfactory supporting structure resistance against climatic conditions is ensured.
  • the front grip can be leg-shaped or completed by a leg, respectively.
  • a leg Such a solution is used in case the supporting beam ought to be placed higher over the roofing.
  • Another possible realization consists in the possibility to set the angle of the supporting beam differently for winter and summer seasons.
  • the supporting beam is fastened to the front grip with a pivot having horizontal axis of rotation which is perpendicular to the supporting beam.
  • the leg located in the rear part of the structure, can be set up longitudinally or be
  • the leg can be attached to the supporting beam in a sliding way due to which the vertical leg position is ensured if the supporting beam inclination is changing.
  • one or more bottom braces can be used between the supporting beam and the leg to ensure sufficient loading capacity.
  • the bottom brace can be used also in case the structure is made of insufficiently strong beams or with said structure being intended for use in strongly weather-influenced regions, respectively.
  • the structure can also be also completed with at least one additional leg.
  • the additional legs can be joined to other ones of the structure and/or mutually one to the other.
  • the supporting beam 1 of each supporting structure is located askew with respect to horizontal plane, in this case at the angle of 25°.
  • the higher located rear part of the supporting beam 1 is fastened to one vertically located leg 4.
  • the junction is made as a screw joint.
  • the bottom part of the leg 4 is welded to the rear transverse girder 3.
  • the lower located front part of the supporting beam 1 is fastened to the front grip 7, with this junction being made as a screw joint.
  • the front grip 7 is welded to the front transverse girder 2.
  • the front transverse girder 2 and the rear transverse girder 3 join individual structures mutually one to the other and serve simultaneously to fasten them to the base consisting of concrete blocks in this case.
  • round holes are made up to fasten two assembling beams 5. These round holes are arranged in two arrays of four holes with one array of the holes being located closer to the front part of the supporting beam I and the second array of the holes being located closer to the supporting beam rear part. Each array of the holes serves to clamp one assembling beam 5 and to rectify it.
  • a photovoltaic solar panel 6 is fastened.
  • the auxiliary brace 8 is used, consisting of two metal beams located and joined to form a cross in this case. With using the auxiliary brace 8, the array of supporting structures is stiffened in this place sufficiently and the front transverse girder 2 and the rear transverse girder 3 need not be used.
  • the supporting beam 1 of both supporting structures is adjustable with respect to the horizontal plane, in this case in the extent of 20° to 30°.
  • the higher located rear part of the supporting beam 1 of each structure is joined to the longitudinally adjustable leg 4.
  • the joint of the supporting beam I to the leg 4 is made in a sliding way.
  • the bottom part of the leg 4 is welded to the rear transverse girder 3.
  • the lower located front part of the supporting beam I is joined to the front grip 7, said joint consisting of the pivot 9 with the horizontal axis of rotation perpendicular to the supporting beam L
  • the front grip 7 is welded to the front transverse girder 2.
  • the front transverse girder 2 and the rear transverse girder 3 join both structures mutually one to the other and serve to fasten them to the base simultaneously which consists of concrete blocks in this case.
  • round holes are made to fasten two assembling beams ⁇ . These round holes are distributed into two four-hole arrays with one array of holes being placed closer to the front part of the supporting beam 1 and the second array of holes being located closer to the rear part of the supporting beam 1. Each array of holes serves to clamp one supporting beam 5 and to rectify it.
  • On the assembling beams 5 a photovoltaic solar panel 6 is fastened.
  • the auxiliary brace 8 is used, consisting of two metal beams located and joined to form a cross.
  • the inclination of the supporting beam i can be adjusted with respect to the horizontal plane. This is advantageous with respect to Sun elevation above the horizon different in winter and summer months.
  • the supporting beam I of both supporting structures is situated askew with respect to the horizontal plane, at the angle of 25° in this case.
  • the higher located rear part of the supporting beam i is fastened to one vertically located leg 4.
  • the junction is made as a screw joint.
  • the bottom part of the leg 4 is welded to the rear transverse girder 3.
  • the lower located front part of the supporting beam I is fastened to the front grip 7 and this joining is made as a screw joint.
  • the front grip 7 is welded to the front transverse girder 2.
  • the front transverse girder 2 and the rear transverse girder 3 join the individual structures mutually one to the other and serve to fasten them to the base simultaneously which consist of concrete blocks in this case.
  • each structure is completed by one auxiliary leg H and one bottom brace 10 which are located under the supporting beam 1.
  • the additional legs J_i of both structures are joined mutually one to the other with another transverse girder which is fastened to the base.
  • round holes are made to fasten two assembling beams 5_. These round holes are arranged in two four-hole arrays with one array of holes being situated closer to the front part of the supporting beam 1 and the second array of holes being located closer to the rear part of the supporting beam 1. Each array of holes serves to fasten one assembling beam 5 and to rectify it. On the assembling beams 5 the photovoltaic solar panel 6 is fastened. Between both structures an auxiliary brace 8 is used consisting of two metal beams, situated and joined to form a cross.
  • Fig. 1 - the side view of the basic structure
  • Fig. 2 the front view of an array of four interconnected supporting structures
  • Fig. 3 the side view on an adjustable structure with a longitudinally adjustable leg
  • Fig. 4 the front view of both structures joined with transverse girders and an auxiliary brace
  • Fig. 5 the side view of the supporting structure with an auxiliary leg and a bottom brace.

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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)
  • Photovoltaic Devices (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

The supporting structure for photovoltaic devices for stiffened surfaces, for flat roofs advantageously, consists of metal beams. The supporting beam (1), inclined at an angle of 10 to 45° with respect to the horizontal plane is fastened to the leg (4) in the higher located rear part of said beam. The lower situated front part of the supporting beam (1) is fastened to the front grip (7). The supporting beam (1) is adapted for fastening of at least one assembling beam (5) and/or of a solar panel (6). The whole supporting structure is fastened to a stiffened surface directly and/or by means of an auxiliary frame. The supporting structure is joined to at least one side- adjacent supporting structure by means of at least one assembling beam (5) and/or of one front transverse girder (2) and/or at least one rear transverse girder (3) and/or at least one auxiliary brace (8).

Description

Supporting Structure for Photovoltaic Devices for Stiffened Surfaces
Technical Field
The technical solution refers to a supporting structure for solar panels and belongs to the domain of assembling or supporting devices for solar panels.
Background Art
The supporting structures for the solar panels are well known in many variants and realisations. As yet however, the supporting structures are used in non-stiffened terrain predominantly.
Installed on bored-in bases advantageously, such structures are known e.g. from the specifications CZ 19145 or CZ 19663. The supporting structures, described here, consist of a fundamental triangular structure, placed on two legs, and differ mutually by the angle of setting and by the shape of the fundamental triangular structure. Instead of being placed on boring-in bases, these structures can be installed on grips fastened to a stiffened surface. Here predominantly, such fastened surfaces are airports out of use or concrete surfaces in old industrial grounds. However, the application of these structures on stiffened surfaces is not too advantageous because they are needlessly sturdy and expensive for these applications consequently. The sturdiness and higher weight of these structures can be a hindrance for installation on building roofs.
These disadvantages are solved by the light supporting structure according to the proposed technical solution, with said structure being utilizable on stiffened surfaces and on flat roofs especially.
Disclosure of the Invention
The substance of the technical solution consists in making up a stable supporting structure with using the minimum of structural parts. In view of the fact that the described supporting structure can be utilised for installations on roofs advantageously, also the low weight of such structure is important. In the structure the supporting beam is located askew with respect to the horizontal plane, i.e. with regard to the intended geographical zone the structure ought to be installed in and the Sun elevation over the horizon in said zone. The supporting beam is tilted in the extent of 10° to 45° against the horizontal plane. For the middle Europe, the inclinations of about 25° are used. In its higher located rear part, the supporting beam is attached to the leg. In its lower located middle part, the supporting beam is fastened to the front grip.
The supporting beam is adapted to fasten of at least one assembling beam and/or a solar panel. Usually in practice, the supporting beam has several holes in its top edge, which are used to rectify the fastening of the assembling beam and/or of the solar panel. Furthermore, a variant with one longish hole can be considered, instead of some round holes. Although such variant is more difficult for fabrication, it enables to rectify the assembling beam and/or the solar panel more accurately. Furthermore, one can consider attaching the assembling beam and/or the solar panel to the supporting beam e.g. by means of an ordinary screw U-clamp etc. An aluminium prefabricated beam, open on its top edge, is used as the assembling beam usually.
The supporting structure is joined to at least one adjacent supporting structure. As a rule, the supporting structures are joined with one front transverse girder, joined to the front grips of structures, and with one rear transverse girder, joined to legs of the structures. Further, the individual supporting structures can be joined mutually by means of an assembling beam and/or a solar panel or with an auxiliary brace. The auxiliary brace serves to stiffen the structures against side influences. It is about the co called wind bracing. As a rule, the auxiliary brace is cross- shaped and can be made up e.g. of metal beams or steel cables. In the case of an array, composed of many supporting structures, the auxiliary brace is placed between the end pairs of the supporting structures at the beginning and the end of the array. Then usually, other auxiliary braces are used in every second gap between the structures. The junction of supporting structures proves also to be advantageous in following repeating combination: supporting structure - front transverse girder and the rear transverse girder - supporting structure - auxiliary brace - supporting structure - front transverse girder and the rear transverse girder - supporting structure ... Then on this array the assembling beams are placed with installed solar panels and/or here the solar panels are located directly. The whole supporting structure can be attached firmly to the stiffened surface directly or by means of an auxiliary frame. The direct junction can be made by making use of ordinary connecting elements (e.g. screws or a so called chemical anchor) in the bottom part of the front grip and of the leg. With the structures joined mutually to the front and rear transverse girders, the transverse girders the supporting structures are fastened on can be clamped to the stiffened surface. The junction by means of the auxiliary frame is used especially in case the supporting structures are installed on flat roofs with trapezoidal surface when the weight of the supporting structures must be distributed in order pro prevent the deformation and damage of trapezes. If possible with respect to the roof loading capacity, the supporting structures can be attached to concrete blocks which are put down on the roof. By it, the satisfactory supporting structure resistance against climatic conditions is ensured.
In another variant, the front grip can be leg-shaped or completed by a leg, respectively. Such a solution is used in case the supporting beam ought to be placed higher over the roofing. Another possible realization consists in the possibility to set the angle of the supporting beam differently for winter and summer seasons. In such case the supporting beam is fastened to the front grip with a pivot having horizontal axis of rotation which is perpendicular to the supporting beam. In this case the leg, located in the rear part of the structure, can be set up longitudinally or be
exchangeable. Suitably, the leg can be attached to the supporting beam in a sliding way due to which the vertical leg position is ensured if the supporting beam inclination is changing.
In case the structure is designed for larger or heavier solar panels respectively, one or more bottom braces can be used between the supporting beam and the leg to ensure sufficient loading capacity. The bottom brace can be used also in case the structure is made of insufficiently strong beams or with said structure being intended for use in strongly weather-influenced regions, respectively.
For above mentioned purposes the structure can also be also completed with at least one additional leg. The additional legs can be joined to other ones of the structure and/or mutually one to the other.
Modes for Carrying Out the Invention
Example no. 1
In compliance with the proposed technical solution, an array of four supporting structures has been made. The supporting beam 1 of each supporting structure is located askew with respect to horizontal plane, in this case at the angle of 25°. The higher located rear part of the supporting beam 1 is fastened to one vertically located leg 4. In this case the junction is made as a screw joint. The bottom part of the leg 4 is welded to the rear transverse girder 3. The lower located front part of the supporting beam 1 is fastened to the front grip 7, with this junction being made as a screw joint. The front grip 7 is welded to the front transverse girder 2. The front transverse girder 2 and the rear transverse girder 3 join individual structures mutually one to the other and serve simultaneously to fasten them to the base consisting of concrete blocks in this case.
On the top edge of the supporting beam _L round holes are made up to fasten two assembling beams 5. These round holes are arranged in two arrays of four holes with one array of the holes being located closer to the front part of the supporting beam I and the second array of the holes being located closer to the supporting beam rear part. Each array of the holes serves to clamp one assembling beam 5 and to rectify it. On the assembling beams 5 a photovoltaic solar panel 6 is fastened. Between the second and third supporting structures of this array the auxiliary brace 8 is used, consisting of two metal beams located and joined to form a cross in this case. With using the auxiliary brace 8, the array of supporting structures is stiffened in this place sufficiently and the front transverse girder 2 and the rear transverse girder 3 need not be used.
The described solution is obvious from the Figs 1 and 2.
Example no. 2
In accordance with the proposed technical solution, two supporting structures have been made. The supporting beam 1 of both supporting structures is adjustable with respect to the horizontal plane, in this case in the extent of 20° to 30°. The higher located rear part of the supporting beam 1 of each structure is joined to the longitudinally adjustable leg 4. In this case the joint of the supporting beam I to the leg 4 is made in a sliding way. The bottom part of the leg 4 is welded to the rear transverse girder 3. The lower located front part of the supporting beam I is joined to the front grip 7, said joint consisting of the pivot 9 with the horizontal axis of rotation perpendicular to the supporting beam L The front grip 7 is welded to the front transverse girder 2. The front transverse girder 2 and the rear transverse girder 3 join both structures mutually one to the other and serve to fasten them to the base simultaneously which consists of concrete blocks in this case. On the top part of the supporting beam J_, round holes are made to fasten two assembling beams ^. These round holes are distributed into two four-hole arrays with one array of holes being placed closer to the front part of the supporting beam 1 and the second array of holes being located closer to the rear part of the supporting beam 1. Each array of holes serves to clamp one supporting beam 5 and to rectify it. On the assembling beams 5 a photovoltaic solar panel 6 is fastened. In this case between both structures the auxiliary brace 8 is used, consisting of two metal beams located and joined to form a cross.
By means of this variant of the solution of the supporting structure the inclination of the supporting beam i can be adjusted with respect to the horizontal plane. This is advantageous with respect to Sun elevation above the horizon different in winter and summer months.
The described solution can be seen on Figs. 3 and 4. Example no. 3
In compliance with the proposed technical solution, two supporting structures have been made. The supporting beam I of both supporting structures is situated askew with respect to the horizontal plane, at the angle of 25° in this case. The higher located rear part of the supporting beam i is fastened to one vertically located leg 4. In this case, the junction is made as a screw joint. The bottom part of the leg 4 is welded to the rear transverse girder 3. The lower located front part of the supporting beam I is fastened to the front grip 7 and this joining is made as a screw joint. The front grip 7 is welded to the front transverse girder 2. The front transverse girder 2 and the rear transverse girder 3 join the individual structures mutually one to the other and serve to fasten them to the base simultaneously which consist of concrete blocks in this case.
In order to ensure greater loading capacity, each structure is completed by one auxiliary leg H and one bottom brace 10 which are located under the supporting beam 1. The additional legs J_i of both structures are joined mutually one to the other with another transverse girder which is fastened to the base.
On the top edge of the supporting beam X1 round holes are made to fasten two assembling beams 5_. These round holes are arranged in two four-hole arrays with one array of holes being situated closer to the front part of the supporting beam 1 and the second array of holes being located closer to the rear part of the supporting beam 1. Each array of holes serves to fasten one assembling beam 5 and to rectify it. On the assembling beams 5 the photovoltaic solar panel 6 is fastened. Between both structures an auxiliary brace 8 is used consisting of two metal beams, situated and joined to form a cross.
The described solution is obvious on the Figs 4 and 5.
Brief Description of Drawings
Exemplary realizations of the proposed solution are described with reference on following drawings:
Fig. 1 - the side view of the basic structure,
Fig. 2 - the front view of an array of four interconnected supporting structures,
Fig. 3 - the side view on an adjustable structure with a longitudinally adjustable leg,
Fig. 4 - the front view of both structures joined with transverse girders and an auxiliary brace,
Fig. 5 - the side view of the supporting structure with an auxiliary leg and a bottom brace.
List of Reference Numbers
1 - supporting beam
2 - front transverse girder
3 - rear transverse girder 4 - leg
5 - assembling beam
6 - solar panel
7 - front grip
8 - auxiliary brace
9 - pivot
10 - bottom brace
1 1 - additional leg

Claims

Claims
1. The supporting structure for photovoltaic devices for stiffened surfaces, for flat roofs advantageously, said structure consisting of metal beams, characterized in that
the supporting beam (1), inclined at an angle of 10° to 45° with respect to the horizontal plane is fastened to the leg (4) in the higher located rear part of said beam,
and the lower situated front part of the supporting beam (1) is fastened to the front grip (7), and further the supporting beam (1) is adapted for fastening of at least one assembling beam (5) and/or of a solar panel (6),
and the whole supporting structure is fastened to a stiffened surface directly and/or by means of an auxiliary frame and, simultaneously, the supporting structure is joined to at least one side-adjacent supporting structure by means of at least one assembling beam (5) and/or of at least one front transverse girder (2) and/or at least one rear transverse girder (3) and/or at least one auxiliary brace (8).
2. The supporting structure for photovoltaic devices for stiffened surfaces according to the Claim 1, characterized in that the front grip (7) is shaped as the leg (4).
3. The supporting structure for photovoltaic devices for stiffened surfaces according to the Claims 1 and 2, characterized in that the supporting beam (1) is fastened to the front grip (7) with the pivot (9) with a horizontal axis of rotation perpendicular to the supporting beam (1),
and at the same time the leg (4), located in the rear part of the supporting structure, is adjustable longitudinally and/or the leg (4) is exchangeable.
4. The supporting structure for photovoltaic devices for stiffened surfaces according to the Claims 1 to 3, characterized in that the leg (4) is clamped to the supporting beam (1) in a sliding way.
5. The supporting structure for photovoltaic devices for stiffened surfaces according to the Claims 1 to 4, characterized in that the supporting structure has at least one bottom brace (10) in the space under the supporting beam (1).
6. The supporting structure for photovoltaic devices for stiffened surfaces according to the Claims 1 to 5, characterized in that
the supporting beam (1) is supported with the auxiliary leg (1 1).
PCT/CZ2010/000089 2009-07-31 2010-07-30 Supporting structure for photovoltaic devices for stiffened surfaces WO2011012097A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ200921531U CZ20127U1 (en) 2009-07-31 2009-07-31 Supporting structure of photovoltaic devices for hard surfaces
CZPUV2009-21531 2009-07-31

Publications (1)

Publication Number Publication Date
WO2011012097A1 true WO2011012097A1 (en) 2011-02-03

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CZ (1) CZ20127U1 (en)
WO (1) WO2011012097A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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EP3562031A1 (en) * 2018-04-23 2019-10-30 Beijing Apollo Ding Rong Solar Technology Co., Ltd. Mounting device for photovoltaic module and photovoltaic module assembly

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US20030070705A1 (en) * 2001-10-11 2003-04-17 Hayden Herbert T. Structure for supporting a photovoltaic module in a solar energy collection system
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US20030070705A1 (en) * 2001-10-11 2003-04-17 Hayden Herbert T. Structure for supporting a photovoltaic module in a solar energy collection system
DE102005007184B3 (en) * 2005-02-14 2006-06-29 Conergy Ag Rack for arrangement of solar modules has two laminar frameworks mounted on each other with framework sides whereby one framework side is bent and is arranged on two neighboring frameworks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3562031A1 (en) * 2018-04-23 2019-10-30 Beijing Apollo Ding Rong Solar Technology Co., Ltd. Mounting device for photovoltaic module and photovoltaic module assembly

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