DE102006028494A1 - Supporting structure, has lower support serving as angle profile for underlying edge of modules, where angle profile has discharge openings, and Z or U-profile has opening in central base, which is arranged between legs - Google Patents

Abstract

A Supporting structure (1) for Solar modules (2), which serve to generate electricity and on one Flat roof or flat inclined roof (3) are held at an oblique inclination, has a deeper support (5) for the lower edge (4) of the oblique to be held solar module (2) and a spaced higher support (6) for the upper area or edge of this solar module (2). As deeper lying support is one in the longitudinal direction the lower edge (4) extending angle profile and for the higher edge a parallel thereto, in cross-section Z- or U- or C-shaped profile provided, wherein the angle profile at least one or preferred several drain holes (12) and the U or Z profile at least some breakthroughs for the reduction of wind forces and for better ventilation the solar modules (2) has (Fig. 1).

Description

The The invention relates to a supporting structure with one or more for generating electricity from sunlight serving solar modules, the on a flat roof or flat inclined roof are held and in use position across from the roof an inclination or tilt, the support structure being one for grasping the lower edge of the oblique arranged solar module serving deep support and a spaced apart higher support for the higher lying Has area or edge of the solar module.

Such Support structures are known in the art and are often by parallel, on the flat roof or on the flat inclined roof with a roof pitch of about 3 ° to about 25 ° fastened rails and formed on these rails individually upstanding support.

Further Are known from practice so-called triangle stands, in which a lower carrier is connected to the roof and a contrast with upstanding carrier with another oblique carrier the mentioned Triangle forms, which the solar module with the oblique carrier in the use position support such triangular stands to be fastened to the flat roof or flat roof Profiles or rails are attached.

These Previous constructions have proven to be expensive and accordingly expensive proved.

Out DE 296 06 547 U1 is a support structure with solar module of another type known in which the attachment to an oblique roof is such that the solar module is arranged parallel to this roof. Since the roof slope is strongly inclined, the same height or equal dimensions supports can be provided in this case for the lower and for the upper support of the solar module.

It Therefore, the task is a support structure for solar modules of the type mentioned above, on a flat roof or flat sloping roof can be applied, but the Manufacturing and assembly costs should be reduced, without the danger exists that too high wind forces on this support structure be effective.

to solution This object is defined at the beginning supporting structure for solar modules characterized in that the support for the lower-lying edge of the solar module or an angle profile is, in which a first Angle leg the narrow side and the adjacent second angle leg the narrow side or front side adjacent lower side edge of the solar module detected in the use position, and that the higher support a in cross section about Z or U-shaped Profile is, with the lower first Z or U-leg facing the roof or attached to this and the second Z or U-leg the Solar module engages underneath in the use position, and that the angle profile in its course at least one or more outflows or drain holes and the Z or U profile at least in his arranged between the first and the second leg middle Footbridge breakthroughs having.

On this way you can the solar modules tilted as a flat or flat inclined roof on this fixed by be that the angle profile on the one hand and the other profile on the other riveted or bolted to the roof or to one on the roof fastened to the rail, with this attachment at the same time can be sealed. Thereafter, the solar module can then on the one hand inserted with its lower edge in the angle profile and on the other in his higher Area or edge area with a leg of the second profile get connected. Also an attachment to the deeper angle profile is appropriate.

The Holes on the angle profile, which can also be slots, prevent in that rainwater can collect in the angle profile. The Perforations or breakthroughs in the middle bridge of the second profile have the significant advantage that not only saves weight, but also wind power less Resistance is opposed, so that the wind load considerably is reduced. At the same time there is a good ventilation, the hot spots prevents or reduces and thus the effectiveness of or the solar modules improved.

The Angle profile and the U or Z profile can with the roof in the use position riveted and / or bolted and this attachment may preferably be sealed at the same time. This results in a stable installation, which nevertheless requires relatively few parts and is correspondingly inexpensive.

The Solar modules can in use position after insertion into the angle profile and after Hang up or support on the U or Z profile with at least one of these profiles, preferably with two profiles in particular detachably connected by a fastening be. This ensures that the solar modules against wind and weather are sufficiently secured.

For fixing the solar modules to the Profiles may be provided screws and / or rivets, which capture or enforce in the position of use frame parts of the solar modules, which can come into contact with the profiles. Both screws and rivets are simple fasteners that are inexpensive and easy to install.

Especially is appropriate it, if the angle profile and / or the U- or Z-profile bent Sheet metal profiles are. Made of folded sheet metal profiles have usually a lighter weight than rolled sections and are in their production relatively easy. In addition, they allow one virtually any choice of material.

A very particularly preferred embodiment The invention may provide that the angle profile and / or the second profile are formed from perforated plates whose holes preferably diameter or have outlines that suit the diameters of the attachment Fasteners, so preferably the diameters of the rivets or screws, and in particular about 5, 6 or 7 millimeters be.

In unusual Way you can So perforated plates, which are usually used as trim or shut-off be used to be profiled in accordance with the invention to hold the solar modules while doing the desired Outflow of water on the one hand from the lower profile and the wind outlet and the rear ventilation to allow on the upper profile.

For the assembly the supporting structure is favorable, if that as a lower support serving angle profile on the in use position the solar module under cross-second angle leg another third downwards Angle leg and one of this turn outgoing fourth Legs for connection to the roof or one located on the roof carrier or the like. As a result, the solar module engages under second angle leg equal in one piece over the third and the fourth Angle leg held and connected directly or indirectly to the roof. Thus, it requires no special holder for detecting and attachments the angle profile.

A expedient embodiment can provide that the angle profile with its four angle legs has a total of about W-section and the in use position lowest W-leg is used for attachment to the roof.

It but it is also possible that in the position of use lowermost for attachment to the roof Serving fourth leg of the angle profile in cross section of the Center of the solar module away and is directed to the edge and especially under the lower edge and / or the low-lying Front side of the solar module is arranged or runs.

ever for roof structures or space for the support profiles So the user can between a W-shaped profile and such Select profile, in which the fourth leg opposite to that of a W-profile is directed.

The Profiles can from an aluminum alloy or aluminum zinc alloy or from galvanized sheet iron or stainless steel sheet, resulting in Corrosion resistance results, and the sheet thickness can be attached to the Be adjusted weights and, for example, 1.5 millimeters to 4 Millimeters or 5 millimeters. For larger and / or heavier solar modules can So larger sheet thicknesses be provided as for lighter or smaller such solar modules.

Further Is it possible, that or the profiles, in particular the U or Z profile its middle bridge, one or more reinforcements. Also by it is an adaptation to different weight and / or wind loads or also snow loads and the like possible.

In front especially when combining one or more of the above Features and measures results in a support structure for solar modules compared to single bars or poster stands has the considerable advantage that in the horizontal direction or towards the horizontal edges the solar modules occurring forces well taken up by the profiles and in particular by the U or Z profile can be because this also stiff in the longitudinal direction mentioned and thus can not give in while single and individual triangular stands just give in to this side of a corresponding force could. In particular, the use of perforated metal sheet proves to be advantageous because this has a good resistance to buckling, which is also characterized shows that a larger sheet thickness is possible, but because of the perforations not too big a weight this profile leads.

below are exemplary embodiments the invention described in more detail with reference to the drawing. It shows in partly considerably schematic representation:

1 a side view of a support structure according to the invention with solar module, wherein the serving for supporting the solar module profiles are shown partially in cross section to show the existing holes in them, wherein a first lower profile than W-profile and a second higher profile is designed as a U or C-profile,

2 one of the 1 corresponding representation in which the second profile is designed as a Z-profile,

3 a the 1 and 2 corresponding representation, wherein in the first lower profile of the fourth lower leg is directed away from the center of the solar module and extends below the lower edge and wherein it is indicated that the second profile be a U- or C-profile or a Z-profile can

4 an end view of a second profile, which in addition to the illustrated Z-shape may also be a U- or C-profile, wherein the central web has a stiffener attached to it, and

5 a plan view of the profile and provided on this stiffener according to 4 ,

One in total with 1 designated support structure is in modified embodiments in the 1 to 3 recognizable and each with at least one for generating electricity from sunlight serving correspondingly strongly inclined solar module 2 shown in the use position.

With the help of the supporting structure 1 are the solar modules 2 on a schematically indicated flat inclined roof 3 kept this roof 3 can have virtually no or a very low inclination of for example 3 ° or up to 20 ° or 25 °, while the solar modules 2 have a steeper inclination or inclination, in order to be well adapted to the position of the sun.

Accordingly, the support structure 1 in a manner to be described one for detecting the lower edge 4 of the slanted solar module 2 serving deeper support 5 and a higher support spaced therefrom 6 for the higher area or edge of the solar module 2 on.

In all three embodiments is the support 5 for the deeper edge 4 of the solar module (s) 2 an angle profile in which a first angle leg 7 the narrow side 8th or end face and the adjacent second angle leg 9 this narrow or front side 8th adjacent lower edge 4 of the solar module 2 recorded in the position of use.

The higher support 6 is a cross-sectionally approximately Z-shaped profile ( 2 . 3 and 4 ) or a U-shaped or C-shaped profile ( 1 ), wherein the lower first Z or U-leg 10 the roof 3 facing or attached to this and the second Z or U-leg 11 the solar module 2 under engages below in the position of use and supported. You can clearly see in 1 . 2 and 3 that the thighs 10 and 11 do not run in mutually parallel planes, but the cross sections of these legs according to the inclination of the respective solar module 2 form an angle with each other.

In the 1 to 3 is further shown that the lower support 5 forming angle profile in its course at least one or more drain holes 12 and the Z or U-profile at least in a middle web arranged between the first and the second leg 13 Breakthroughs or perforations 14 having. You can clearly see that the drain holes 12 at the lowest point of the first angle leg 7 are arranged so that no rainwater or snow water or the like can remain in the angle profile, as this in any case through this lowest drain holes 12 expires. In addition, also higher lying drain holes 12 on the angle leg 7 be provided. Furthermore, could also be the second angle leg 9 Have drain holes. Also, slots may be provided as drains.

The breakthroughs or perforations 14 at the middle jetty 13 allow ventilation and reduce the wind forces on the supporting structure 1 can attack while reducing the weight.

In 1 is indicated that the angle profile and the U or Z profile with the roof 3 riveted in use position and / or can be screwed, with this attachment 15 can still be sealed at the same time.

Furthermore, in 1 indicated that the solar modules 2 in use position after insertion into the angle profile and after placing on the U or Z profile with at least one of these profiles, in the embodiment with two profiles by a fastening 16 may preferably be detachably connected, wherein for fixing the solar modules 2 may be provided on the profiles screws and / or rivets, in the position of use, for example, frame parts of the solar modules 2 capture or enforce which contact with the profiles. Also at these points seals can be provided.

The angle profile and also the U- or Z-profile can be bent sheet metal profiles, with perforated plates are preferred because they are the drainage holes 12 and the breakthroughs or perforations 14 then included from the beginning, so this perforations 12 or 14 no longer need to be attached. The holes can be 12 and 14 for example, have the diameters or outlines that correspond to the diameters of the fixing elements serving for fastening, so preferably the diameters of the rivets or screws and for example be about 5, 6 or 7 millimeters. Such perforated plates are commercially available and also have the appropriate dimensions, so that the production is easy, because the mounting holes do not need to be additionally attached.

In the 1 to 3 one recognizes that the angle profile on the solar module in the position of use 2 engaging second angle leg 9 another with its cross section downwardly directed third angle leg 17 and on this in turn at the edge thereof emanating from this fourth angle leg 18 for connection to the roof 3 having. This results in an angle profile, which with its four angle legs 7 . 9 . 17 and 18 has an approximately W-shaped cross-section, wherein the lowest position in the use position W-leg 18 for attachment to the roof 3 serves.

In 3 is shown that the lowest in the position of use, for attachment to the roof 3 serving fourth thighs 18 the angle profile in cross section also from the center of the solar module 2 can be directed away and under the lower edge 4 and the deeper end 8th of the solar module 2 passes through or is arranged there. Also the thus with respect to the arrangement 1 and 2 oppositely directed legs 18 serves in an analogous way, as it is in 1 is indicated, for attachment to the flat roof 3 or a profile rail or the like located there.

3 indicates that with this modified angle profile as a higher support turn either a Z-shaped or a U- or C-shaped profile can be combined to the support structure 1 to build.

In order to accommodate higher forces can, according to the 4 and 5 the middle jetty 13 of the higher support 6 forming Z or U-profile with one or more stiffeners or reinforcements 19 be provided in accordance with 5 again can be an angle profile.

The supporting structure 1 for solar modules 2 , which are used for power generation and on a flat roof or a little inclined roof 3 with a more oblique or greater inclination than this, has a deeper support 5 for the bottom edge 4 of the oblique solar module 2 and a higher support spaced therefrom 6 for the upper area or edge of this solar module 2 , As a deeper support is a longitudinal direction of the lower edge 4 extending angle profile and for the higher edge a parallel thereto, provided in cross-section Z- or U- or C-shaped profile, wherein the angle profile at least one or preferably several drain holes or openings 12 and the U or Z profile at least some breakthroughs to reduce wind forces and better ventilation of the solar modules 2 having.

Claims (12)

Supporting structure ( 1 ) with one or more solar modules used for generating electricity from sunlight ( 2 ) on a flat roof or a flat roof ( 3 ) and in the position of use have an inclination or inclination, wherein the supporting structure ( 1 ) one for detecting the lower edge ( 4 ) of the obliquely arranged solar module ( 2 ) deep support ( 5 ) and a spaced higher support ( 6 ) for the higher area or edge of the solar module ( 2 ), characterized in that the support ( 5 ) for the deeper edge ( 4 ) of the solar module (s) ( 2 ) is an angle profile, in which a first angle leg ( 7 ) the narrow side ( 8th ) and the adjacent second angle leg ( 9 ) of this narrow or front side ( 8th ) adjacent lower-side edge ( 4 ) of the solar module ( 2 ) in the position of use and that the higher support ( 6 ) is a Z-shaped or U-shaped profile in cross-section, wherein the lower first Z or U-leg ( 10 ) the roof ( 3 ) or attached thereto and the second Z or U-leg ( 11 ) the solar module ( 2 ) engages underneath in the position of use, and that the angle profile in its course at least one or more drains or drainage holes ( 12 ) and the Z or U-profile at least in its intermediate web disposed between the first and the second leg ( 13 ) Breakthroughs ( 14 ) having. Supporting structure according to claim 1, characterized in that the angle profile and the U- or Z-profile with the roof ( 3 ) is riveted and / or screwed in position of use and that this attachment is preferably sealed at the same time. Supporting structure according to claim 1 or 2, characterized in that the solar modules ( 2 ) in use position after insertion into the angle profile and after placing on the U or Z profile with at least one of these profiles, preferably in particular releasably connected to two profiles by a fastening. Supporting structure according to one of claims 1 to 3, characterized in that screws for fastening the solar modules to the profiles and / or rivets are provided which in the position of use frame parts of the solar modules ( 2 ) capture or enforce. Supporting structure according to one of claims 1 to 4, characterized in that the angle profile and / or the U or Z-profile bent sheet metal profiles are. Supporting structure according to one of claims 1 to 5, characterized in that the angle profile and / or the second Profile beveled perforated sheets are. Supporting structure according to one of claims 1 to 6, characterized in that the angle profile and / or the second profile are formed from perforated plates whose perforations ( 12 . 14 ) preferably have diameters or contours which correspond to the diameters of the fixing elements used for fastening, that is preferably the diameters of the rivets or screws, and in particular about 5, 6 or 7 mm. Supporting structure according to one of claims 1 to 7, characterized in that the angle profile on the in use position the solar module ( 2 ) engages under second angle leg ( 9 ) a further downwardly directed third angle leg ( 17 ) and a fourth angle leg ( 18 ) for connection to the roof ( 3 ) having. Supporting structure according to one of claims 1 to 8, characterized in that the angle profile with its four angle legs in total has an approximately W-shaped cross-section and in the position of use the lowermost W-leg ( 18 ) for attachment to the roof ( 3 ) serves. Supporting structure according to one of claims 1 to 9, characterized in that the lowest in the position of use, for attachment to the roof ( 3 ) serving fourth legs ( 18 ) of the angle profile in cross-section from the center of the solar module ( 2 ) and, in particular, below the low-lying edge ( 4 ) and the low-lying end face ( 8th ) of the solar module ( 2 ) passes through or is arranged. Supporting structure according to one of claims 1 to 10, characterized in that the profiles of an aluminum alloy or aluminum zinc alloy or galvanized sheet iron or Stainless steel sheet exist and that the sheet thickness to be absorbed Weights are adjusted and, for example, 12 millimeters to 4 millimeters or 5 millimeters. Supporting structure according to one of the preceding claims, characterized in that the one or more profiles, in particular the U- or Z-profile, at its central web 13 one or more stiffeners or reinforcements 19 having.