DE102009043811A1 - Assembly system for use in roof system for assembling solar modules at roof structure, has retaining construction for transmission of traction force on sub-construction - Google Patents

Abstract

The assembly system (20) has a retaining construction for the transmission of traction force on a sub-construction (11). The retaining construction is fastened to the sub-construction by a connecting element, where the connecting element is arranged between the retaining construction and the sub-construction. An independent claim is also included for a roof system, which has a roofing foil.

Description

TECHNICAL AREA

The The present invention relates to a mounting system for mounting Solar modules on a surface with a substructure comprising at least one support for transmission of compressive forces over the bearing surface of the carrier on the surface. Furthermore The invention relates to a roof construction with a roof construction comprising a surface and a tension-resistant substructure and a mounting system.

STATE OF THE ART

Of the Use of solar modules for power generation has been in the face of rising Energy prices and dwindling non-renewable resources gained in importance. To make solar panels economically viable A considerable effort has been made to increase the profitability of production and to improve the efficiency of the modules.

For one However, economic use requires that the solar modules with as possible low technical effort at appropriate places and built can be used effectively there. As is known, Solar modules become common on roofs attached, since there the solar radiation unhindered on the solar cell can hit. However, the attachment can lead to problems because roofs mostly by special measures, such as For example, through waterproof roof sheeting, from the ingress of Moisture protected are. Furthermore can be an insulating layer be provided.

At the Fixing the solar modules can easily destroy the moisture protection and that undesirable Ingress of water into the roof structure to be promoted. This is undesirable. Therefore It is a goal, the roof construction in the cultivation of solar modules preferably little to change. Nevertheless, the installation should not be complicated or expensive.

A Another requirement is that tensile and compressive forces, the act on the solar module, be effectively derived in the roof construction. However, the substructures of different roofs differ are, must be the arrangement of the carrier always be redefined. The flexibility and security of the used Mounting systems is limited.

OBJECT OF THE INVENTION

outgoing It is the object of the present invention, as possible to provide a flexibly usable mounting system and a roof structure, the one safe and to the conditions of the existing roof allow customized attachment of solar modules.

TECHNICAL SOLUTION

These Task is solved by a mounting system according to claim 1 and a roof structure according to Claim 17. Advantageous embodiments result from the features of the dependent claims.

One Mounting system for mounting solar modules on a roof construction with a surface and a substructure comprises at least one carrier for transmission of compressive forces over the bearing surface of the carrier on the surface. The mounting system has at least one support structure for transmission from acting on the carrier lifting pull forces on the substructure (trapezoidal sheet, beams, etc.) on, where the support structure by means of at least one connecting element attached to the substructure, wherein the connecting element spatially separated between the support structure and the substructure from the support surface of the carrier is arranged.

A spatial Separation of the pressure and suction or Zughalterung means that the Connecting elements not in the area of the bearing surface of carrier are arranged, but in a remote position by the roof foil and the roof construction protrude to the substructure. A spatial Separation of the pressure and suction or Zughalterung has the advantage that the corresponding forces go there can be directed where they can best be absorbed by the roof construction. So are tensile beams of the roof construction spaced from each other. Nevertheless, you can the carriers be placed anywhere on the roof, as pulling / lifting forces on a Arm, for example, attached to the top of the carrier, over the Fasteners in the area of possibly removed Beams of the substructure directed and recorded there can.

The at least one connecting element can be designed as a point holder. The connecting element may have one or more point connections to the substructure. A point connection is defined in the context of the invention in that, viewed from above, the roof foil is punctured only at one point, or the connecting element has only a very small cross-sectional area compared to the bearing surface of the carrier, or the connecting element only one in the attachment Point penetrates into the substructure (such as a screw or a nail). Of the Carrier can be referred to as a surface or line holder.

The Connecting element comprises in particular at least one screw, which extends through the roof construction to the substructure.

Of the carrier can be a support surface have, over the on the carrier acting pressure forces evenly a partial area the surface transferred to the roof construction become. Pressure forces act So in the direction of the roof construction. For example, they can occur as weight forces. The compressive forces be through the relatively large bearing surface equally distributed. Thereby, as well as by the fact that the foil at the present Invention below the carrier is intact, is the risk of damage or in places Wear of the film reduced.

Of the carrier is preferably without a arranged in the region of the support surface Fixing element on the surface of the roof construction. The fastener for deriving the tensile forces through the roof liner in the area of the tensile substructure is spatially separated according to the invention from the pressure forces receiving bearing surface.

The Retaining structure may comprise at least one arm which is between the connecting element and the carrier is arranged. This may be attached to the top or surface of the carrier. Especially The arm can move from the connector to which it is connected led upstairs be and over the aquifer Level to the carrier extend, on which (in particular on its upper side) he attached is. The length The arm can attach to the roof structure and the desired location the carrier be adapted, d. H. the length can change become. Different arms can for one or for different carriers in their length and orientation vary. This allows them to be independent of the position and orientation of the wearer tensile forces always lead to the substructure of the roof, the arm first over the water-bearing Level led to the mounting location or location of the connecting element and of there, down to the roof foil protrudes.

Of the Arm may preferably be connected to the surface of the carrier, so that Pulling forces of the surface of the carrier transferred to the fasteners become. The surface can be any exterior surface of the carrier (except the support surface) be. In particular, however, a fastening over the water-bearing Planned level, z. B. at the top of the carrier.

The Holding structure may comprise at least one plate on the surface the roof construction rests. The plate can be equipped with openings for Penetration of the "punctiform" fasteners be provided. On the plate, the arm can be attached, which is initially vertical or led upwards is (in particular over the aquifer Level) and then to the carrier extends.

In a special embodiment can the carrier a cross-sectional profile such that a connecting part on the carrier form-fitting can be attached.

Especially The system may have a connection part which is connected by means of a Clamp can be attached to the cross-sectional profile of the wearer. The connecting part may, for example, a clip and holding devices for the Have solar modules.

The Retaining structure may have a holding profile. The holding profile can have at least two support flanges, with a the Spanning profile Retaining element are connected. The retaining element may be substantially arcuate be educated.

The Mounting system preferably comprises at least a second carrier, wherein the first carrier and the second carrier are arranged such that an end face of the first carrier and an end face of the second carrier opposite are aligned horizontally, and the retaining structure traction forces both of the first carrier as well as the second carrier transferred to the connecting element can. Thus, one or a group of connectors may be connected via a Retaining structure tensile forces from both carriers take up.

The Mounting system may include at least a second carrier, and the support structure is designed such that tensile forces both from the first carrier as well as from the second carrier transferred to the connecting element can be. It is preferred if the first carrier and the second carrier are parallel aligned with each other.

One roof construction according to the invention with a roof construction comprises a surface and a tensile substructure, the roof assembly comprising a mounting system as described above.

The Roof construction has in particular at least one roofing foil, on the carrier profile rests.

The roof construction may comprise at least one insulation. This is usually below the Roof foil.

Of the Roof construction comprises in particular at least one solar module, the on carrier profile is attached. The module can be attached directly or indirectly to the carrier be.

Preferably extend the fasteners through the roof liner and / or through the insulation. The tensile force is over transmit a "point-shaped" cross-section.

The openings in the roof sheet can be sealed. So can further film sections may be provided which cover the area of the openings Cover the roof sheet and attached to the roof liner, for example through watertight welds that the range of breakthroughs enclose. This is how moisture gets into the roof substructure prevented.

BRIEF DESCRIPTION OF THE FIGURES

Further Features and advantages of the invention will become apparent from the following Description of preferred embodiments based on the figures. Show it:

1 an embodiment of a roof structure according to the invention in a side view;

2 the roof structure according to the invention from the 1 in a plan view;

3 an embodiment of a mounting system in a side view;

4 the mounting system from the 3 in a plan view;

5 a further embodiment of a mounting system according to the invention in a side view;

6 the mounting system from the 5 in a plan view;

7 a further embodiment of a mounting system according to the invention in a plan view;

8th the mounting system from the 7 in a side view;

9 a further embodiment of a roof structure according to the invention in a side view;

10 a further embodiment of the mounting system according to the invention in a plan view; and

11 a further embodiment of the mounting system according to the invention.

DESCRIPTION OF PREFERRED EMBODIMENTS

The 1 shows a roof structure according to the invention 1 with a mounting system 20 in a side view.

The roof construction 1 includes a roof construction 10 , for example, a flat roof. The flat roof 10 has a substructure by beams 11 symbolized, or may be a trapezoidal sheet, which can absorb tensile forces / suction forces. Above the substructure 11 is an insulating layer 12 arranged. Above the insulation layer 12 is a roofing foil 13 provided, the penetration of moisture into the insulation layer 12 and to the substructure 11 should prevent.

On the surface 14 the roof construction 10 or the roof foil 13 is a carrier profile 21 of the mounting system 20 , For example, a screed arranged. The carrier profile 21 is elongated and extends in the y-direction on the roof foil 13 , The carrier profile 21 lies with its flat underside 22 on the surface 14 the roof construction 10 on. This allows pressure forces acting on the carrier profile 21 act on the roof construction 10 be transferred, with the applied compressive forces on the support surface 22 to distribute.

The mounting system 20 also has a holding system 23 on, the tensile forces acting on the carrier profile 21 interact and from the surface 14 the roof construction 10 are directed away, on the roof construction 10 transfers. The holding system 23 has a plate 24 in, in the through holes for screws 25 are formed. From the plate 24 extends to the top and then horizontally to the surface 26 of the carrier 21 an arm 27 about which on the carrier 21 acting tensile forces up to the plate 24 and about the screws 25 on the beams 11 be transmitted.

The screws 25 extend through holes in the roof foil 13 to a bar 11 and are bolted there. By means of the screws 25 can tensile forces or lifting forces from the carrier profile 21 on the beams 11 be transmitted.

In the construction of point-like, high-tensile mounts in the form of screws 25 spatially separated from the support surface 22 of the carrier 21 intended. Accordingly, the transmission paths for tensile or compressive forces on the roof construction 10 spatially separated. While the Pressure forces over the support surface 22 of the carrier 21 distributed on the roof construction 10 be transferred, the tensile forces on the screws 25 over a narrow "punctiform" power transmission path on the beam 11 transfer.

Due to the spatial separation of point and Zugkraftübertragungsweg it is possible to the carrier 21 arbitrarily on the roof construction 10 to arrange, whether in the immediate vicinity or under the carrier 21 a tensile element such as a beam 11 the substructure is located. Through the power transmission via arms 27 on point mounts 25 is a flexible arrangement of carriers 21 on the roof construction 10 possible. Pressure and tension can be independently taken from the roof structure at appropriate locations.

The 2 shows a plan view of the roof structure 1 according to the 1 , The on the surface 14 the roof foil 13 overlying screed 21 is over the arm 27 and a fixture 28 between the arm 27 and the surface 26 the screed 21 held against tensile forces. Traction forces are over the arm 27 on the plate 24 transferred by means of screws 25 tensile strength on a beam 11 (see. 1 ) of the roof construction 10 is held.

In a preferred embodiment, an arm can 27 over the screed 21 extend to a further Zugbefestigung (not shown), so that a plurality of spatially offset point supports, in particular on different sides of the screed 21 to secure these against traction forces.

In the 3 is a mounting system 20 represented, which is a carrier profile 21 that has with its footprint 22 on the surface 14 a roofing foil 13 rests. The carrier profile 21 has a flat base 22 and an approximately semicircular upper profile 29 on.

The mounting system 20 also has a retention profile 24a . 24b . 27 in the form of a hat, over the carrier profile 21 is laid.

The retention profile 24a . 24b . 27 has both sides of the carrier profile 21 arranged side flanges 24a and 24b on that on the surface 14 the roof foil 13 rest and by means of screws 25a respectively. 25b on a tensile beam (not shown) below the roof foil 13 are fastened tensile strength. In addition, the profile has 24a . 24b . 27 a retention part 27 on that is about the carrier profile 21 between the flanges 24a and 24b extends. Traction forces on the profile 21 act on the restraint part 27 on the flanges 24a and 24b , from there over the screws 25a . 25b transferred to a tensile element of the substructure.

The 4 shows a plan view of the construction according to the 3 , wherein it is clear that along the longitudinal axis y of the carrier profile 21 several retention profiles 24a . 24b . 27 ; 24a ' . 24b ' . 27 ' can be arranged. The retention part 27 is arcuate in this embodiment and surrounds the profile 21 ,

In an embodiment according to the 5 which are essentially the ones in the 3 and 4 corresponds to the embodiment shown, the carrier profile 21 a special cross-section that allows it to the head area 211 a holding element for holding the solar modules, a shoe, fasteners, etc., attach by a clamp around the head area 211 is attached. The clamp can be attached by elastic forces or by screwing two staple legs by holding the head area 211 at least partially.

The carrier profile 21 can from an additional slide 3 , the side of the carrier profile 21 is welded to the roof foil, to be enclosed.

In the 7 and 8th another embodiment of the invention is shown. The mounting system 20 has two profiles extending in the y-direction 21a , and 21b on. The two profiles are arranged so that each faces 212a and 212b are arranged opposite each other at a distance from each other. Between the faces 212a and 212b are screws 25 arranged, the tensile strength in the substructure (not shown) of the roof are fixed. The on the profiles 21a and 21b acting tensile forces are via fasteners 28 on a holding plate 27 of the holding system (tension fastening) 23 transfer. About the retaining plate 27 the forces are over the vertical arm 271 on the plate 24 and from there into the roof substructure.

The 9 and 10 show a similar construction as in the 7 and 8th shown. However, in this construction, the plate extends 24 in the field of profiles 21a and 21b , either directly under the profiles 21a and 21b or laterally offset from these. Accordingly, the screws 25a and 25b arranged. Besides, the plate is 24 from a slide 30 covered to prevent the ingress of water into the area of the openings in the roof liner 13 through which the screws 25a . 25b extend, prevent. The foil 30 can on both sides of the plate 24 or on all sides of the plate 24 with the roof foil 13 be welded.

The 10 shows an embodiment in which a plurality of laterally (in the x direction) staggered carrier profiles 21a . 21b are arranged offset parallel and laterally to each other. The carrier profiles 21a and 21b become by in the longitudinal direction (y-direction) staggered train holders 23a . 23b held. Each of the train mounts 23a . 23b has a plate 24 on that with screws 25 attached to the roof substructure, as already described above. About an arm 27 , which is bilateral (in x-direction) from the plate 24 extends, the profiles become 21a and 21b about brackets 28 held against contrasting forces. They are foil sections 30 provided for sealing the openings in the roof foil.

The 11 shows a further embodiment of a mounting system according to the invention 1 , The mounting system 1 has a subcarrier profile 21 similar to the one in the 4 displayed profile. The diffused upper section 211 is over a narrowed intermediate section 213 with a foot part 212 connected. The foot part 212 has each laterally extending flanges. At least on one side, the flange is over a fastener 28 with a connecting arm 27 connected. The profile 21 remote end portion of the mounting arm 27 is with the help of a screw 25 on the substructure 11 attached to a flat roof so that tensile / suction loads can be transferred. The subcarrier profile 21 facing end of the arm 27 can of a holding part 214 additionally held or on the carrier profile 21 be aligned.

The whole construction, namely the connecting arm 27 , the fastener 28 and the subcarrier profile 21 be from a slide 3 covered, the waterproof on the roof liner 13 can be welded.

Claims (22)

Mounting system ( 20 ) for mounting solar modules on a roof structure ( 10 ) with a surface ( 14 ) and a substructure ( 11 ) comprising at least one carrier ( 21 ) for transmitting compressive forces over the support surface ( 22 ) of the carrier ( 21 ) on the surface ( 14 ), characterized in that the mounting system ( 20 ) at least one support structure ( 23 ) for transmission to the carrier ( 21 ) acting lifting tensile forces on the substructure ( 11 ), wherein the support structure ( 23 ) by means of at least one connecting element ( 25 ) is attached to the substructure, wherein the connecting element ( 25 ) between the support structure ( 23 ) and the substructure ( 11 ) spatially separated from the support surface ( 22 ) of the carrier ( 21 ) is arranged. Mounting system ( 20 ) according to claim 1, characterized in that the at least one connecting element ( 25 ) is designed as a point holder. Mounting system ( 20 ) according to claim 1 or 2, characterized in that the connecting element ( 25 ) one or more point connections to the substructure ( 11 ) having. Mounting system ( 20 ) according to one of the preceding claims, characterized in that the connecting element ( 25 ) comprises at least one screw extending through the roof construction ( 10 ) to the substructure ( 11 ). Mounting system ( 20 ) according to one of the preceding claims, characterized in that the carrier has a support surface ( 22 ), over which on the carrier ( 21 ) acting pressure forces evenly on a partial surface of the surface ( 14 ) of the roof construction ( 10 ) be transmitted. Mounting system ( 20 ) according to one of the preceding claims, characterized in that the carrier ( 21 ) without in the area of the bearing surface ( 22 ) arranged fastener on the surface ( 14 ) of the roof construction ( 10 ) rests. Mounting system ( 20 ) according to any one of the preceding claims, characterized in that the support structure ( 23 ) at least one arm ( 27 ), which between the connecting element ( 25 ) and the carrier ( 21 ) is arranged. Mounting system ( 20 ) according to claim 7, characterized in that the arm ( 27 ) with the surface ( 26 ) of the carrier ( 21 ), so that tensile forces from the surface ( 26 ) of the carrier ( 21 ) to the connecting elements ( 25 ) be transmitted. Mounting system ( 20 ) according to any one of the preceding claims, characterized in that the support structure ( 23 ) at least one plate ( 24 ) on the surface ( 14 ) of the roof construction ( 10 ) rests. Mounting system ( 20 ) according to one of the preceding claims, characterized in that the carrier ( 21 ) has a cross-sectional profile such that a connecting part on the support ( 21 ) can be fixed positively. Mounting system ( 20 ) according to any one of the preceding claims, characterized in that the system comprises a connecting part which by means of a clamp on the cross-sectional profile of the carrier ( 21 ) can be attached. Mounting system ( 20 ) according to any one of the preceding claims, characterized in that the support structure ( 23 ) a holding profile ( 24a . 24b . 27 ) having. Mounting system ( 20 ) according to claim 12, characterized in that the retaining profile ( 24a . 24b . 27 ) at least two support flanges ( 24a . 24b ) having a profile ( 21 ) spanning retaining element ( 27 ) are connected. Mounting system ( 20 ) according to claim 13, characterized in that the retaining element ( 27 ) is formed substantially arcuate. Mounting system ( 20 ) according to one of the preceding claims, characterized in that the mounting system ( 20 ) comprises at least a second carrier, wherein the first carrier ( 21a ) and the second carrier ( 21b ) are arranged such that an end face of the first carrier ( 21a ) and an end face of the second carrier ( 21b ) are aligned opposite, and the support structure ( 23 ) Tensile forces of both the first carrier ( 21a ) as well as the second carrier ( 21b ) on the connecting element ( 25 ) can transmit. Mounting system ( 20 ) according to one of the preceding claims, characterized in that the mounting system ( 20 ) at least one second carrier ( 21b ), wherein the first carrier ( 21a ) and the second carrier ( 21b ) are aligned parallel to each other, and the support structure ( 23 ) is designed such that tensile forces both from the first carrier ( 21a ) as well as the second carrier ( 21b ) on the connecting element ( 25 ) can be transmitted. Roof structure ( 1 ) with a roof construction ( 10 ) comprising a surface ( 14 ) and a tensile substructure ( 11 ), whereby the roof structure ( 1 ) a mounting system ( 20 ) according to one of the preceding claims. Roof structure ( 1 ) according to claim 17, characterized in that the roof construction ( 10 ) at least one roofing foil ( 13 ), on which the carrier profile ( 21 ) rests. Roof structure ( 1 ) according to claim 17 or 18, characterized in that the roof construction ( 10 ) at least one insulation ( 12 ). Roof structure ( 1 ) according to one of claims 17 to 19, characterized in that the roof structure ( 1 ) comprises at least one solar module, which on the carrier profile ( 21 ) is attached. Roof structure ( 1 ) according to one of claims 17 to 20, characterized in that the connecting elements ( 25 ) through the roof foil ( 13 ) and / or through the insulation ( 12 ). Roof structure ( 1 ) according to claim 21, characterized in that the openings in the roof foil ( 13 ) are sealed.

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