EP2641032A2

EP2641032A2 - Installation system and method for fastening solar module frames onto primary rails located therebelow

Info

Publication number: EP2641032A2
Application number: EP11810547.7A
Authority: EP
Inventors: Thomas Nocker
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-19
Filing date: 2011-11-18
Publication date: 2013-09-25
Also published as: AT511006A1; WO2012065206A2; WO2012065206A3; AT511006B1

Abstract

The invention relates to an installation system (1) for fastening solar module frames onto primary rails (8 - 8'') located therebelow, wherein at least one T profile (15 - 15''') is formed on the upper side of a primary rail (8 - 8''), and wherein two opposite side parts of a solar module frame are formed by secondary rails(18, 18', 19, 19') having T grooves (20, 20', 21, 21') integrated on the lower side. It is essential in this case that, in the fitted state, the T profile (15 - 15''') of the corresponding primary rail (8 - 8'') extends with a clearance in a T groove (20, 20', 21, 21 ') and that spacers (22 - 22''', 23 - 23''') are placed between the T profiles (15 - 15''') and the T grooves such that the solar module frames are connected in a form-fitting manner without a clearance to the primary rails (8 - 8''). Furthermore, a method is provided for installing solar module frames onto primary rails (8 - 8'') located therebelow, the method comprising placing spacers (22 - 22''', 23 - 23''') between T profiles (15 - 15''') and T grooves extending with a clearance with respect to one another. This results in the provision of an installation system (1) or method for fastening solar module frames, which permits rapid, simple and secure installation of solar modules (2'', 2''') onto a substructure and which at the same time can be expanded arbitrarily and can be matched to the circumstances provided in situ in each case.

Description

Mounting system and method for mounting solar module frames on underlying primary rails

The invention relates to a mounting system for fixing the frame of rectangular, photovoltaic solar modules on underlying primary rails, and a method for mounting the frame of rectangular photovoltaic solar modules on underlying primary rails, as indicated in the claims 1 and 20. DE 20 2008 011 312 U1 discloses a locking system for fixing solar modules equipped with retaining profiles to underlying support profiles. The parallel holding and support profiles are equipped with retaining lugs, which are pushed or hooked during assembly. By inserting locking fingers between the holding and support profiles a movement apart of the engaging retaining lugs is prevented. Likewise, the problem of the theft-inhibiting mounting of solar modules is treated in this document and to a fixation of the outer locking fingers proposed with a theft-proof screw type. The necessary according to the disclosed locking system holding and support profiles have relatively complex profile shapes with various retaining lugs and grooves. The locking fingers are also designed or arranged between the solar modules in such a way that a relatively large spacing between them results, thereby correspondingly reducing the area of the solar system which is actually used.

From DE 102 24 437 Al a fastening device for a solar collector module is known, wherein the holding frame of the collector module is clamped by a spring-loaded retaining means with a transverse profile. The spring-loaded holding means is inserted during assembly in a T-slot of the transverse profile. For the final fixation of the collector modules are end-side stop elements, which are introduced to the outermost in the T-grooves of the transverse profiles provided. For theft prevention preferably a U-lock is proposed, which is arranged so that a removal of the holding means from the T-groove of the transverse profile is prevented. In particular, the distortion of the holding frame of a collector module with a potentially affected by fatigue spring system provides a

Weak point of such a fastening device. DE 10 2008 045 510 AI shows a frame of a solar module, which has on its underside an integrated T-slot, which serves to fasten the frame. How such a fixture is formed accurately is not shown in the document. The present invention has for its object to provide a mounting system for fixing the frame of rectangular photovoltaic solar panels on underlying primary rails, which allows a fast, easy and secure installation of photovoltaic modules (PV modules) on a substructure and which at the same time can be expanded as desired and adapted to the respective local circumstances. Moreover, it is an object of the invention to provide a method for mounting the frame of rectangular photovoltaic solar modules on underlying primary rails, with which the stated objects are achieved.

The first object of the invention is achieved by a mounting system according to the features in claim 1.

According to the invention, two opposite secondary rails, which form two opposite side parts of the frame of a PV module, have integrated T-slots running on their undersides in the longitudinal direction of the secondary rails. The parallel, running in a plane primary rails in turn each have at their upper sides at least one vertical, extending in the longitudinal direction of the primary rail T-profile. In the mounted state of a PV module, the T-profile of the corresponding primary rail runs in the T-slot of the respective secondary rail. The clearance between T-profile and T-slot both in the solar module level and perpendicular to the solar module level is positively filled by the introduction of cross-sectionally substantially C- or U-shaped spacers in the frontal end portions of the secondary rail, so that the secondary rails of a PV Module via the spacers backlash with the corresponding primary rails in connection. The mounting system formed thereby is very easy and quick to use, since only the fixed distance between the T-profile of a primary rail and the T-slot of a corresponding secondary rail must be inserted to fix the solar module frame and no multi-part, mountable only by a tool Fasteners are needed. Thus, the amount and variety of mounting materials is reduced. The existing without inserted spacers Clearance between T-slots and T-profiles allows a simple and quick way to bring a solar module to be mounted in the desired end position on the primary rails and fix there by introducing the spacers. The solar module frame is actively integrated into the mounting system and is connected by means of the spacers, which are completely enclosed by the T-slots of the secondary rails, in a secure and stable manner with the running on the bottom of the solar module surface primary rails. The essential parts of the mounting system comprising the primary rails and their upper side T-profiles, the spacers and the secondary rails or their underside T-slots can be easily dimensioned by a person working in this field such that the entire mounting system sufficient stability or

Has strength to withstand particularly stressful environmental influences such as storms or snow loads.

Of particular advantage is an embodiment according to claim 2, characterized in that the transverse in the direction transverse to the primary rails adjacent solar modules share the intermediate primary rail together and in total less individual primary rails must be mounted on a substructure. As a result, both the installation effort and the need for mounting material for attaching the primary rails is significantly reduced. Many already known mounting systems for PV modules require two independent primary rails per PV module, which must be installed separately.

Also advantageous are the measures according to claim 3, since thereby a mounting of the solar modules or the solar module frame is made possible with a very small distance to the solar modules lying next door in the transverse direction of the primary rails. A small gap between the solar modules results in a reduction in the area required by the PV system for the same output.

Also advantageous are the measures according to claim 4, since a very uniform mounting system is created in which only one type of end rail must be made and kept in stock. This reduces on the one hand the manufacturing, storage and

Logistics costs and on the other hand, the number of different parts that are present in the mounting system. Another advantage is also an embodiment according to claim 5, since on the one hand it is ensured that the fastening means for fixing the primary rails on or on a substructure are not arranged in the plane of the solar modules and thus affect their positioning or spacing in any way. As a result, in particular, an arrangement of the solar modules adjacent to one another in the transverse direction to the primary rails with a very small distance from one another is made possible. On the other hand, an embodiment according to claim 5 allows a fixation of the respective primary rail on the substructure without the use or provision of an additional holding device, as is the case with many known from the prior art mounting systems.

Another advantage are the measures according to claim 6, since a particularly stable and separable connection between primary rails and PV modules is achieved. In addition to the backlash-free positive connection between the T-profiles of the primary rails and the T-slots of the secondary rails, which is present after insertion of the spacers, a game involving positive connection is given already after threading the T-grooves on the T-profiles.

Also advantageous are the measures according to claim 7, since a very simple and fast assembly and disassembly of solar modules, the latter, for example, for the replacement of defective modules, is made possible because the solar modules no longer threaded from one end of the primary rails on the T-profiles must be moved or moved to this end of the primary rails in order to be deducted from the T-profiles can. If a PV module arranged between several other PV modules has to be removed, the other solar modules lying in the direction of one end area of the primary rails do not have to be removed from the T-profiles, but they only have to be loosened and easily moved. Then it is possible to remove the PV module to be removed by removing the spacers and lift in the direction perpendicular to the solar module level of the T-profiles of the primary rails. As a result of this embodiment, the assembly or disassembly effort for the solar modules is considerably reduced.

In an embodiment according to claim 8, it is advantageous that, on the one hand, in the case of rectangular solar modules and with the same orientation of the primary rails The solar modules can be mounted both in landscape and portrait format. On the other hand, it is possible to mount the primary rails both horizontally and vertically with the same orientation of the solar modules. This allows a flexible use of fiction, contemporary mounting system, since it can be easily adapted to the particular local circumstances.

Another advantage is also an embodiment according to claim 9, since thereby the insertion or insertion of the spacer body between the T-profile and T-slot in the front end portions of the secondary rails is greatly facilitated. Similarly, the sliding of the T-slots of secondary profiles on already positioned spacers is simplified.

Another advantage is the measures according to claim 10, since this ensures in a simple manner that, despite tolerances in the production of the T-profiles and the T-slots, deformations of these parts during assembly or deviations in the parallel and planar alignment of the primary rails positive connections between T-profiles and spacers or spacers and T-grooves can be produced without manual post-processing or introduction of filler. The formed on the spacers ribs, cams and / or other small surveys or their relatively easy deformability ensure that the spacers can be inserted or inserted positively between the T-profiles and T-slots even with smaller dimensional deviations.

In the measures according to claim 11, it is advantageous that this ensures that, on the one hand, an inserted spacer body does not come loose from the intermediate space between the T-profile and the T-slot, and, on the other hand, one fixed with spacer bodies on the T-profiles of the primary rails Solar module can not be moved along the T-profiles.

Also of advantage are the measures according to claim 12, since a stable fixation of the solar modules on the T-profiles of the primary rails is ensured and only the smallest possible amount of holding and fastening means is used. Still further reduced is the amount of fasteners used when the fastener fastener is also used to secure or fix an end-to-end body most externally mounted on a T-profile. The fixation of a Enddistanzkörpers increases the strength of the connection between the solar modules and the primary rails still further.

An embodiment according to claim 13 ensures that a holding means for fixing the solar modules on the primary rails is connected to the T-profile of the respective primary rail in a very stable and secure manner.

Of particular advantage are the measures according to claim 14, since an anti-theft fixation of the two extremely attached to a T-profile of a primary rail holding means and thus an anti-theft fixation of the arranged between these holding means solar modules is achieved. In particular, it is ensured in a simple manner that all are arranged concealed except for a fastener and this one fastening means is designed such that it is either only more destructive or only with special tool solvable.

Also of advantage are the measures according to claim 15, since a combined spacer body is created, which can be used simultaneously for two adjacent solar modules. Likewise, such an intermediate distance body is arranged without additional fastening means between the T-slots and the T-profiles of the two adjacent solar modules. Thus, the number of parts to be mounted of the mounting system is reduced by the specified measures. Furthermore, the use of intermediate spacers enables the positioning of the solar modules adjacent to one another in the direction of the primary rails at a very small distance from each other. Another advantage is the measures according to claim 16, as this creates an intermediate distance body is placed at any point on a T-profile and does not have to be pushed from an end of a primary rail ago on a T-profile. Such a divisible intermediate spacer simplifies and accelerates the mounting of the solar modules on the primary rails. After inserting a composite intermediate spacer into the T-slot of a secondary rail, it is ensured that the two parts of the intermediate spacer no longer separate, since the two side walls of the T-slot completely and form-fittingly enclose the intermediate spacer. Also advantageous are the measures according to claim 17, as this in a simple manner on the one hand a small spacing of the solar modules, which are adjacent to each other in the longitudinal direction of the primary rails, and on the other hand, a slipping of the intermediate spacers along the primary rails is reliably prevented. Due to the central web of the intermediate distance body, a small distance between the solar modules in the longitudinal direction of the primary rails sets itself and any deviations of the solar modules with respect to their nominal dimensions, for example due to manufacturing tolerances or thermal expansion can be compensated without problems. The thickness of the center bar is further minimized so that the efficiency of the PV system is increased, since the same power a smaller total area is claimed. In many known from the prior art mounting systems for solar modules in the longitudinal direction of the primary rails adjacent solar module frame at a distance of 25 mm or more. Especially with large-scale systems, a reduction in the distance between the solar modules has a very positive effect on the efficiency of the PV system.

An embodiment according to claim 18 is also advantageous since it provides a mounting system which is particularly compact in its height, as a result of which, in particular, the wind attack surface and the lateral contact surface of deposited or slipping snow are reduced.

Also advantageous are the measures according to claim 19, since thereby the power output of a PV system is increased while maintaining the overall module surface and thus the efficiency. Furthermore, the appearance of the total module surface is improved, since the small gap between the PV modules results in an "all-glass impression".

The object of the invention, in particular the second mentioned object of the invention, is solved independently by a method according to claim 20. The achieved by the measures according to claim 20 technical effects or advantages are given in the preceding description parts, in particular the Vorteilsnennungen to claim 1. In summary, as a significant advantage of the method according to the invention, the simple, fast and anti-theft mounting of the PV modules on the primary rails of the mounting system. This is achieved essentially by the use of mostly only aufzusteckenden final and Zwischendistanzkör- pern. The few additional necessary fasteners are further either arranged hidden or in particular can only be more destructive or solved with special tools. Furthermore, various assembly steps, such as the fixation of the first holding means and the first Enddistanzkörper in the first end of the primary rails can be carried out in advance, so that the effort at the installation or on a particular exposed or inaccessible rooftop is reduced. Also advantageous are the measures according to claim 21, since a particularly stable and secure connection between the solar modules and the primary rails is made by the play-related positive encompassing of the T-profile of a primary rail through the T-slot of a secondary rail. As a result, a detachment of a solar module from the primary rails is reliably prevented, for example, even in the case of failure of a spacer due to a material defect.

Another advantage is the measures according to claim 22, since this allows a simpler and faster installation of the solar modules on the primary rails. On the one hand, the solar modules no longer have to be threaded from one end region of the primary rails onto the T-profiles and moved along this to their final position. On the other hand, when exchanging a defective solar module lying in the middle of the overall module surface, for example, the further solar modules lying next to the defective solar module in the direction of the end region of the primary rails do not have to be removed or removed from the T profiles of the primary rails. It suffices in this case to loosen the adjacent solar modules and to move a small distance along the primary rails so that the spacers can be removed from the T-slots of the defective solar module and the solar module can be lifted perpendicular to the solar module level of the primary rails. Also advantageous are the measures according to claim 23, since a particularly simple and stable plug-in system for mounting or fixing the solar modules on the T-profiles of the primary rails is created, in which a reduced number of mounting parts is necessary. Another advantage is the measures according to claim 24, as a very quick and comfortable mounting system is created, in which the intermediate spacers can be placed at any location on the T-profiles of the primary rails and no longer from one end of the primary rails on the T. Profiles must be deferred.

Finally, the measures according to claim 25 are advantageous, as a simple and safe displacement possibility for the PV modules is created in their final positioning especially in horizontal mounting of the primary rail and threaded PV modules as well as very long primary rails. Damage to a PV module when moving along the T-profiles of the primary rails is thereby largely excluded. Replacing the sliding or rolling spacer after positioning a solar module has the advantage that a solar module can be moved after mounting only with a much greater force along the T-profiles of the primary rails and thus the stability of the mounting system is increased.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

In each case, in a highly simplified, schematic representation:

1 shows an arrangement of four solar modules on the mounting system.

Figure 2 shows an arrangement of auffädelbaren (left portion of the illustration) and vertically attachable (right section of the illustration) secondary rails on the T-profiles of the primary rails, which secondary rails are fixed with spacers.

Fig. 3 is a sectional view of secondary rails, which with Enddistanzkörpern and

Holding means are fixed on a primary rail;

4 shows an arrangement of solar modules which are fixed with end spacers, intermediate dance bodies and holding means on primary rails; Fig. 5 Enddistanzkörper with C-shaped (Fig. 5a and 5b) and U-shaped (Fig. 5c and 5d) cross-section; divisible intermediate spacers having C-shaped (Figures 6a and 6b) and U-shaped (Figures 6c and 6d) cross section;

Fig. 7 shows a solar module frame, in which all four side parts are constructed by secondary rails with integrated T-slots. By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as above, below, laterally, etc. related to the directly described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location. Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.

All statements on ranges of values in the description of the present invention should be understood to include any and all sub-ranges thereof, e.g. the indication 1 to 10 should be understood to include all sub-ranges, starting from the lower limit 1 and the upper limit 10, i. all subregions begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1 or 5.5 to 10.

In Fig. 1, an embodiment of a mounting system 1 for fixing the frame 3 - 3 '"of rectangular photovoltaic solar modules 2 - 2"' on underlying, substantially parallel and extending in a plane primary rails 8 - 8 "shown.

According to the illustrated embodiment, the solar modules 2 - 2 "', which essentially of a solar module frame 3 - 3'" and attached thereto or therein consist of photovoltaic laminates, grid-shaped and arranged close to each other. Together, the solar modules 2 - 2 "'form an overall module surface 4, the peripheral region of which can be subdivided into a first edge region 5, a second edge region 6 and the two lateral edge regions 7, 7' Primary rails 8 - 8 "arranged substantially parallel and extending in one plane.The vertical orientation of the primary rails 8 - 8" shown in the embodiment is chosen arbitrarily. Likewise, it is easily possible to arrange the primary rails 8 - 8 "horizontally or to select an oblique orientation, ie in principle the mounting system 1 and thus the entire PV system can be rotated arbitrarily in the solar module plane clamped by the overall module surface 4.

The primary rails 8 - 8 ", which carry the solar modules 2 - 2" 'are mounted on an underlying substructure. This substructure can be, for example, a roof construction, a façade of a house, a stand construction on a flat roof or the ground, or an automatic tracking device for aligning the total module surface 4 perpendicular to the sun's rays. In this connection, it should be noted that the mounting system 1 shown can in principle be used in addition to photovoltaic solar modules 2 - 2 '"for thermal solar modules .. At the top of each primary rail 8 - 8" extends in the longitudinal direction at least one vertical T-profile 15 - from a first end region 9 - 9 "of a primary rail 8 - 8" to a second end region 10 - 10 "of a primary rail 8 - 8." The T-profiles 15 - 15 '"preferably extend over the entire length of the primary rails 8-8 "and have a first end region 11-11 '' and a second end region 12-12 ''. The primary rails 8, 8 '' extending in the lateral edge regions 7, 7 'of the overall module surface 4 each have a vertical one on their upper side T-profile 15, 15 "'and are also referred to below as end rails 13, 13'. The primary rail 8 ', which is arranged between the outer end rails 13, 13', has two lower sides on its upper side true T-profiles 15 ', 15 "and is also referred to below as the intermediate rail 14.

The side parts of the solar module frames 3 - 3 "extending parallel over the primary rails 8 - 8" are formed by secondary rails 16, 16 ', 17, 17', 18, 18 ', 19, 19'. These secondary rails 16, 16 ', 17, 17', 18, 18 ', 19, 19' and also the right angles thereto. ßenden and the solar module frame 3 - 3 "'completing side panels are in accordance with the illustrated, expedient embodiment of the PV laminates of the solar modules 2 - 2'" almost completely covered so that the fullest possible utilization of the existing area is given. Likewise, the PV laminates are flush with the upper side ends of the solar module frames 3 - 3 "', so that on the one hand a glass edge protection for the PV laminates and on the other hand a solar module top is formed without protruding edges on which, for example dirt or snow accumulate or could accumulate.

As best seen in Fig. 2, is on the undersides of the secondary rails 18, 18 ', 19, 19' in each case one in the direction of the longitudinal axis of the secondary rail 18, 18 ', 19, 19' extending, integrated T-slot 20, 20th ', 21, 21' formed. In the assembled state of a solar module 2 ", 2"'extends in the T-slot 20, 20', 21, 21 'of the respective secondary rail 18, 18', 19, 19 ', the T-profile 15 - 15 "' of the corresponding primary rail 8 - 8 ". In this case, the T-profiles 15-15 "'and the T-slots 20, 20', 21, 21 'on a spacing in all directions, so that the secondary rails 18, 18', 19, 19 'and thus the solar modules 2" , 2 "'can be moved several millimeters both in the solar module plane and also perpendicularly thereto, to fix the secondary rails 18, 18', 19, 19 'on the primary rails 8 - 8". on spacer 22 - 22 "'pushed and the spacers 23 - 23"' are inserted into the respective T-slots 20, 20 ', 21, 21' of the secondary rails 18, 18 ', 19, 19', so that the outer surfaces of the spacers 22 - 22 "', 23 - 23'" are positively enclosed in the T-slots 20, 20 ', 21, 21' and the inner surfaces of the spacers 22 - 22 "', 23 - 23'" form fit the T-profiles 15 The spacers 22 - 22 "', 23 - 23'" used here have a C-shaped cross-section 24 - see also FIGS. 5a and 5b or 6a and 6b - or a U-shaped cross-section 25 - see Fig. 5c and 5d and 6c and 6d - on. The illustration in FIG. 2 makes it clear that the disclosed mounting system 1 is fundamentally a plug-in system in which little additional fastening means, in particular screwing means, which often also have to be mounted with a tool, are required. According to an advantageous embodiment, the primary rail 8 'lying between the solar modules 2-2''has two vertical, closely spaced T-profiles 15', 15 "on the upper side, so that the primary rail 8 'extends from the respectively in the transverse direction to the primary rail 8 'adjacent solar modules 2, 2' and 2 ", 2 '" shared becomes. It is expedient if, in the case of such a primary rail 8 'designed as an intermediate rail 14, the vertical center axes of the cross sections of the two T-sections 15', 15 "have a spacing of less than 45 mm, preferably less than 40 mm, in particular less than 35 mm ,

According to an expedient embodiment, the arranged in the lateral edge regions 7, 7 'of Gesamtmodulfläche 4 primary rails 8, 8 ", which are each equipped with a top side, vertical T-profile 15, 15"', designed such that such as end rails 13, 13 'executed primary rails 8, 8 "in the two lateral edge regions 7, 7' in the same longitudinal orientation, in opposite longitudinal orientation or optionally in one of the two types can be used.

As best seen in Figs. 1 and 2 are shown according to an advantageous embodiment laterally adjacent to the T-profiles 15 - 15 "'in the main bodies of the primary rails 8 - 8" holes 26 - 26 ", 56 - 56", 58 - 58 introduced so that with suitable fasteners 57, 57 '- Fig. 3 - such as screws, the primary rails 8 - 8 "can be connected from above with an underlying substructure, wherein in the holes 26 - 26", 56 - 56 " , 58-58 "introduced fastening means 57, 57 ', the assembly of the spacers 22 - 22'", 23 - 23 "'and the secondary rails 16, 16', 17, 17 ', 18, 18', 19, 19 'not hinder ,

According to an advantageous embodiment, the slot of the T-slots 20, 20 'of the secondary rails 18, 18' for receiving the vertical web of the T-profiles 15, 15 'has a width which is smaller than the width of the horizontal web of the T-profiles. Profiles 15, 15 '. Thus, in order to mount the secondary rails 18, 18 'and thus the solar module 2 "on the primary rails 8, 8', the T-slots 20, 20 'of an end portion 10, 10' - Fig. 1 - the primary rails 8, 8 'threaded onto the T-profiles 15, 15' and the solar module 2 "are moved to its desired end position. According to an alternative, advantageous embodiment, the slots of the T

Grooves 21, 21 'of the secondary rail 19, 19' of the solar module 2 '"for receiving the vertical webs of the T-profiles 15", 15 "' to a width which is equal to or greater than the width of the horizontal web of the T-profiles 15 ", 15"'. Thus, the secondary rails 19, 19' and so that the solar module 2 "'at any point on the T-profiles 15", 15'"of the primary rails 8 ', 8" are placed and the secondary rails 19, 19' need not by an end portion 12 ", 12"'- 1 - the T-profiles 15 ", 15"'are threaded onto the primary rails 8', 8 ", it is expedient to attach the secondary rails 19, 19 'to the T-profiles 15", 15'"of the primary rails 8 '. , 8 "from above in the vertical direction to the solar module level. The positive fixing of the secondary rails 19, 19 'on the primary rails 8', 8 "is by inserting the spacers 23", 23 "'in the T-slots 21, 21' of the secondary rails 19, 19 'or by pushing the T In the case of such an embodiment of the T-slots 21, 21 'of the secondary rails 19, 19', there are no U-shaped cross-sections Spacer 22, 23, as shown by way of example in FIGS. 5c and 5d or 6c and 6d, are used since there is no positive connection perpendicular to the solar module plane between the secondary rails 19, 19 'and the T-profiles 15 ", 15 "'of the primary rails 8', 8" would result.

As can be seen in FIGS. 2 and 4, it is expedient to arrange two intermediate spacers 23, 23 'between two solar modules 2, 2 lying side by side in the longitudinal direction of the primary rails 8-8. Such intermediate spacer bodies 23, 23 ', as best seen in FIGS. 6a and 6c, have a first spacer section 27 which is located between the respective T-profile 15, 15' and the respective T-slot 20, 20 'of the secondary rails 18, 18 'of the first solar module 2 "lies and have a second spacer section 28 which lies between the respective T-profile 15, 15' and the respective T-slot of the secondary rails 16, 16 'of the second solar module 2. Preferably, a Intermediate spacers 23 ", 23"'are designed so as to be divisible along its longitudinal central axis 29. Thus, the two parts 30, 31 of a divisible intermediate spacer 23 ", 23'" at any point on a T-profile 15 ", 15"'of a primary rail 8 ', 8 "placed and assembled into a complete intermediate spacer 23", 23 "'. A fixation of the two parts 30, 31 of the divisible intermediate spacer 23 ", 23"'to each other automatically results after insertion of the joined intermediate spacer 23 ", 23"' in a T-slot 21, 21 'of a secondary rail 19, 19'. An inseparable intermediate spacer 23, 23 'is formed by an end portion 12, 12' - Fig. 1 - a T-profile 15, 15 'pushed onto a primary rail 8, 8' and along the T-profile 15, 15 'in a T-slot 20, 20' of a secondary rail 18, 18 'is inserted.

According to a particularly expedient embodiment, an intermediate spacer body 23-23 "has, in relation to its longitudinal direction, a middle web 32 arranged on the upper side, which accommodates the solar modules 2-2" "lying side by side in the longitudinal direction of the primary rails 8-8 Due to the small thickness of the central web of 1 mm to 10 mm, preferably 2 mm to 7 mm, in particular 3 mm to 4 mm, it is achieved that as little space as possible is unused due to a minimal clearance between the solar modules 2 - 2 "' get lost. In addition, an intermediate distance body 23-23 "is fixed by a central web 32 in its position between the solar modules 2-2" '.

Conveniently, as shown in Figs. 3 and 4, in the two end regions 9, 10 of a primary rail 8 outside the respective Enddistanzkörper 22, 45 holding means 33, 34 are arranged, which the outer, in a first edge region 5 or second edge region 6 of Total module surface 4 - Fig. 1 - arranged solar modules 2 - 2 "'and thus also any between these solar modules 2 - 2'" arranged further solar modules against displacement along the T-profiles 15 - 15 '"of the primary rails 8 - 8" secures. The holding means 33, 34 are connected by means of fastening means 35, 36 and via bores 37-39 to the T-profile 15 of the primary rail 8. It is expedient to use the fastening means 35 for the holding means 33 as well as for fixing a first end spacer 22 attached to the top of the T-profile 15. For this purpose, the Enddistanzkörper 22 has a bore 40 which is aligned in the mounted state with a bore in the end portion 11 of the T-profile 15 and the bore 37 of the holding means 33, so that the fastening means 35 can be introduced.

According to a particularly advantageous embodiment, a first end spacer 22 is first pushed onto a primary rail 8 on a first end region 11 of a T-profile 15 and fixed together with the retaining means 33 by means of the fastening means 35 in a first end region 9 of the primary rail 8. Subsequently, the T-slot 20 of the secondary rail 18 of the solar module 2 "is pushed onto the end spacer 22 and brought to the stop on the holding means 33. Furthermore, a position on the T-profile 15 of the primary rail 8 attached intermediate spacer 23 at the other end of the secondary rail 18 is inserted into the T-groove 20. Optionally, further solar modules 2 "are arranged on the primary rail 8 and fixed by means of further intermediate spacers 23 placed therebetween. After attaching the last, outermost solar module 2, its secondary rail 16 is inserted into the T-slot on the second end region 12 of the T. Since the secondary rail 16 obscures the bore 41 of the second end spacer 45, it is no longer fixed with a fastener Instead, a holding means 34 is mounted in the second end region 10 of the primary rail 8 and with a fastening means 36 and fixed via holes 38, 39.

As a result, the secondary rails 16, 18 or the solar modules 2, 2 "and any further solar modules lying therebetween are secured against displacement along the primary rail 8. In the described assembly of the solar modules 2, 2", the fixing of the solar modules 2, 2 "is likewise effected Secondary rails 16 ', 18' on the T-profile 15 'of the primary rail 8' proceeded.

The fastening means 35 of the first holding means 33 or of the first end spacer 22 and the fastening means 57, 57 'are preferably arranged in the bores 26, 26' of the primary rail 8 in such a way that they are separated from the respective secondary rails 16, 18 or the corresponding solar modules 2 Furthermore, such a fastening means 36 is used for fixing the second holding means 34, which can only be broken or loosened with special tools, in particular by executing the fastening means 36 as a tear-off screw or coded screw This is an anti-theft fixation of the solar modules 2 - 2 "'given on the primary rails 8 - 8".

According to an advantageous embodiment, the second holding means 34 on its underside with a groove 42, in particular a T-slot, equipped with which the holding means 34 is positively slid onto a second end portion 12 of the T-profile 15 of the primary rail 8. Since in the assembled state, the bore 38 of the holding means 34 is aligned with the bore 39 in the second end portion 12 of the T-profile 15, for fixing the holding means 34, a fastening means 36 in the bores 38, 39 are introduced. As best seen in Fig. 4, in an advantageous embodiment, the mounting system 1 is designed so that the total height 43 of the primary rails 8 - 8 "and the solar modules 2 - 2" arranged above 'less than 90 mm, preferably less than 80 mm is. It is likewise expedient to configure the mounting system 1 and in particular the middle webs 32 of the intermediate spacers 23-23 "'or the horizontal spacing of the T-profiles 15', 15" of the intermediate rail 14 in such a way that the gap dimensions 44, 44 ' between the grid-shaped arranged solar modules 2 - 2 '"in the assembled state less than 20 mm, preferably less than 10 mm, in particular about 3 mm .. In Figs. 5a to 5d two expedient embodiments of a Enddistanzkörpers 22 are shown in different views 5a and 5b has a C-shaped cross-section 24, while the embodiment shown in Figs 5c and 5d has a U-shaped cross-section 25. It is expedient for such an end spacer 22 to extend in the longitudinal direction End region is preferably provided in a partial section with a taper 46, which on all four outer sides of the Enddistanzkörpers 22nd Preferably, small ribs 48 are formed on the outer sides of the end spacer 22, which in the installed state form a positive connection with the inner sides of the T-slots 20, 20 ', 21, 21' - FIG. conclusion even with tolerances or load-related dimensional deviations in the T-profiles 15 - 15 '", the T-slots 20, 20', 21, 21 'or the Enddistanzkörper 22 itself is made sure. According to a particularly advantageous embodiment, an end spacer 22 is formed in its dimensions so that in the assembled state, on the one hand between a T-profile 15 - 15 "', on which the Enddistanzkörper 22 is pushed, and the Enddistanzkörper 22 itself and on the other hand between the Enddistanzkörper 22nd and a T-slot 20, 20 ', 21, 21', in which the Enddistanzkörper 22 is inserted, there is a frictional connection.The foregoing description applies equally to all shown in the drawings Enddistanzkörper 22 - 22 '"and 45 -. 45 ".

FIGS. 6a and 6b show an exemplary embodiment of an intermediate spacer body 23 with a C-shaped cross section 24 which can be divided along the longitudinal center axis 29. By way of example, FIGS. 6c and 6d show a divisible intermediate spacer 23 with a U-shaped cross section 25. According to a particularly expedient embodiment, such an intermediate spacer 23 is in the longitudinal direction in the end regions of the two spacer sections 27, 28 equipped with tapers 47, 47 'formed on all four outer sides of the intermediate spacer 23. Conveniently, ribs 49 and nubs 50 are formed on the surface of the intermediate spacer 23, so that even with smaller dimensional deviations of the intermediate spacer 23 positively in the space between a T-profile 15 - 15 '"- Fig. 2 - and a T-slot 20, 20th According to a particularly advantageous embodiment, the dimensions of an intermediate spacer 23 are selected such that on the one hand between a T-profile 15 - 15 "'and the intermediate spacer 23 arranged thereon and on the other hand between the intermediate spacer 23 and a T-groove 20, 20 ', 21, 21', in which the intermediate spacer body 23 is inserted, a frictional connection is formed. The foregoing description applies equally to all intermediate spacers 23-23 "'shown in the drawings.

Fig. 7 shows an advantageous embodiment of a solar module frame 3, in which all four side parts by secondary rails 51, 51 ', 52, 52' with formed on the underside T-grooves 53, 53 ', 54, 54' are executed. The secondary rails 51, 51 ', 52, 52' are connected by means of corner connecting devices 55-55 "'to form a complete solar module frame 3, on the upper side of which a PV laminate is flush-mounted and fastened in particular in the solar module frame 3 with an adhesive assembly method of the frame 3, 3 "of rectangular, photovoltaic solar modules 2, 2" on underlying, in particular fixedly mounted primary rails 8, 8 ', wherein the solar module frame 3, 3 "two parallel secondary rails 16, 16', 18, 18 'with T-slots 20, 20' arranged at the bottom, comprises the following steps: first, the primary rails 8, 8 'are mounted substantially parallel and in a plane running on a substructure by fastening means 57, 57' in the Holes 26-26 ", 56-56" of the primary rails 8, 8 'are introduced. Subsequently, Enddistanzkörper 22, 22 'on the first end portions 11, 11' of the T-profiles 15, 15 'of the primary rails 8, 8' pushed and together with the also in these end regions 11, 11 'attached first holding means 33, 33' with Fixing means 35, 35 'fixed. Subsequently, the secondary rails 18, 18 'of the solar module 2 "on the T-profiles 15, 15' depending on the width of the slot of the T-slots 20, 20 'mounted vertically from above or from a second end portion 12, 12' of the T Profiles 15, 15 'ago threaded onto the primary rails 8, 8' and on the Enddistanzkörper 22, 22 'interrupted ben. In a next step, depending on the embodiment, the intermediate spacers 23, 23 'are pushed onto the T-profiles 15, 15' from a second end region 12, 12 'of the T-profiles 15, 15' or at divisible intermediate spacers 23, 23 ' the T-profiles 15, 15 'mounted and the first spacer portion 27 of the intermediate spacers 23, 23' is inserted into the T-slots 20, 20 'of the secondary rails 18, 18'. In a next step, the adjacent solar module 2, depending on the embodiment of its T-slots on the T-profiles 15, 15 'of the primary rails 8, 8' placed or from the second end portion 12, 12 'of the T-profiles 15, 15' ago threaded on the second spacer section 28 of the intermediate spacers 23, 23 ', wherein the central web 32 of the intermediate spacers 23, 23' keeps the two solar modules 2, 2 "spaced apart from each other. Profiles 15, 15 'postponed and inserted into the two T-slots of the secondary rails 16, 16', which Enddistanzkörper 45, 45 'are no longer fixed with its own fasteners, since their holes 41 of the secondary rails 16, 16' in the assembled state Finally, on the still free end regions 10, 10 'of the primary rails 8, 8', a second holding means 34, 34 'are pushed onto the T-profiles 15, 15' and fastened with fastening means 36, For the purpose of theft deterrence, the fastening means 36, 36 'are in particular only more destructive or can be loosened with special tools, such as, for example, as a tear-off screw or coded screw. The mounting method described with reference to the solar modules 2, 2 "is likewise used in the assembly of the solar modules 2 ', 2'" on the primary rails 8 ', 8 ".

According to a further advantageous embodiment, when threaded solar modules 2, 2 "are used to displace these solar modules 2, 2" along the T-profiles 15, 15 'of the primary rails 8, 8' into the T-slots 20, 20 'of the secondary rails 16 , Slide 16 ', 18, 18' sliding or rolling distance, not shown, in order to move the solar modules 2, 2 "in a simple and secure manner in the final position in an optional next method step, the sliding or rolling spacer bodies are exchanged accordingly by end spacer bodies 22, 22 ', 45, 45' or intermediate spacers 23, 23 '.

The exemplary embodiments show possible embodiments of the mounting system, wherein it should be noted at this point that the invention does not refer to the specifically illustrated variant of the same is limited, but rather also various combinations of the individual variants are possible with each other and this possibility of variation due to the doctrine of technical action by objective invention in the skill of those working in this technical field. Thus, all conceivable embodiments that are possible by combinations of individual details of the embodiment variant shown and described are also encompassed by the scope of protection.

For the sake of order, it should finally be pointed out that for a better understanding of the structure of the mounting system, this or its components have been shown partially unevenly and / or enlarged and / or reduced in size.

The task underlying the independent inventive solutions can be taken from the description.

Above all, the individual in FIGS. 1 to 4; 5a to 5d, 6a to 6d; 7 embodiments form the subject of independent, fiction, contemporary solutions. The relevant, fiction, contemporary tasks and solutions can be found in the detailed descriptions of these figures.

REFERENCE NUMBERS

1 mounting system 35, 35 ', 35 "fasteners

9 1 '0 "9"' solar module

3,3 ', 3 ", 3"' solar module frame 36, 36 ', 36 "fasteners

4 Ges officmodulfläche 37 bore

5 First edge area of the 38 hole

Ges amtmodulfläche 39 bore

40 hole

6 Second edge area of the

Total module surface

41 bore

7,7 'lateral edge of the

42 groove

Ges amtmodulfläche

43 Total construction height

8, 8 ', 8 "primary rail

44.44 'gap

9.9 ', 9 "first end of a

45, 45 ', 45 "end spacer

primary rail

10, 10 ', 10 "Second end of a 46 taper

Primary splint 47.47 'Rejuvenation

48 rib

, 11 ', 11 ", 11"' First end of a T

49 rib

profile

50 pimples

, 12 ', 12 ", 12"' second end of a

T-profile 51.51 'secondary rail

13, 13 'end rail 52, 52' secondary rail

14 intermediate rail 53.53 'T-slot

, 15 ', 15 ", 15"' T-profile 54.54 'T-slot

55, 55 ', 55 ", corner joint s device

16, 16 'secondary rail

55 " '

17, 17 'secondary rail

18, 18 'secondary rail 56, 56', 56 "bore

19, 19 'secondary rail 57, 57' fastening means

20, 20 'T-slot 58, 58', 58 "bore

21.21 'T-slot

, 22 ', 22 ", 22"' end spacer

, 23 ', 23 ", 23"' intermediate spacer

24 C-shaped cross section

25 U-shaped cross-section

26, 26 ', 26 "bore

27 First distance section

28 Second distance section

29 longitudinal central axis

30 First spacer body part

31 Second spacer body part

32 middle bridge

33.33 'First holding means

34, 34 ', 34 "second holding means

Claims

Patent claims

1. Mounting system (1) for fastening the frame (3 - 3 '') of rectangular, photovoltaic solar modules (2 - 2 '') on underlying, in particular fixedly mounted and substantially parallel and extending in a plane primary rails (8 -. 8 "), wherein at the top of each of a primary rail (8 - 8") at least one vertical, in the longitudinal direction of the primary rail (8 - 8 ") extending T-profile (15 - 15" ') is formed and wherein two opposite, to The primary rails (8-8 ") parallel side parts of a solar module frame (3 - 3" ') by secondary rails (16, 16', 17, 17 ', 18, 18', 19, 19 ') are formed, which on the undersides each have a in the direction of the longitudinal axis of a secondary rail (16, 16 ', 17, 17', 18, 18 ', 19, 19') extending, integrated T-slot (20, 20 ', 21, 21'), characterized in that in the assembled state of a solar module (2 - 2 "') in the T-slot (20, 20', 21, 21 ') of the respective secondary rail (16, 16 ', 17, 17', 18, 18 ', 19, 19'), the T-profile (15 - 15 "') of the corresponding primary rail (8 - 8") extends, wherein the T-slot (20 , 20 ', 21, 21') surrounds the T-profile (15-15 "') with clearance both in the solar module plane and perpendicular to the solar module plane, and that in the two end-side end regions of a secondary rail (16, 16', 17, 17 ', 18, 18', 19, 19 ') in each case a cross-sectionally substantially C- (24) or U-shaped (25) spacer body (22 - 22 "', 23 - 23" ') is arranged, whose outer surfaces form fit in the T-slot (20, 20 ', 21, 2Γ) are enclosed and the inner surfaces form-fitting the T-profile (15 - 15 "') enclose, so that the secondary rails (16, 16 ', 17, 17', 18, 18 ', 19, 19') of the solar module (2 - 2 '") via the spacers (22 - 22'", 23 - 23 "') play with the primary rails (8 - 8") in combination.

2. Mounting system according to claim 1, characterized in that between the grid-like arranged solar modules (2 - 2 "') parallel primary rails (8'), each with two upper side, closely spaced T-profiles (15 ', 15") are formed and that in the mounted state, two adjacent solar modules (2 - 2 "') in each case with one of these T-profiles (15', 15") are in communication, so that such as an intermediate rail (14) configured primary rail (8 ') of adjacent solar modules (2 - 2 "') is shared.

3. Mounting system according to claim 2, characterized in that the vertical center axes of the cross sections of the two T-profiles (15 ', 15 ") of an intermediate rail (14) a distance of less than 45 mm, preferably less than 40 mm, in particular less than 35 mm.

4. Mounting system according to claim 1, wherein the two parallel primary rails (8, 8 ") are each formed with a T-profile (15, 15 '") arranged on the upper side, and that in each case such a primary rail (8, 8 ") configured as end rail (13, 13') is provided in the two lateral edge regions (7 , 7 ') can be used in the same longitudinal orientation, in opposite longitudinal orientation or alternatively in one of the two ways.

5. Mounting system according to one of the preceding claims, characterized in that the main body of a primary rail (8-8 ") laterally adjacent to the at least one, top side formed T-profile (15 - 15" ') accessible from above bores (26 -. 26 ", 56-56", 58-58 ") and that in these bores (26-26", 56-56 ", 58-58") fastening means (57, 57 ') can be introduced, whereby the primary rail (8 - 8 ") can be connected to an underlying substructure.

6. Mounting system according to one of the preceding claims, characterized in that the width of the slot of the T-slot (20, 20 ') of a secondary rail (18, 18') for receiving the vertical web of the T-profile (15, 15 ') is smaller than the width of the horizontal web of the T-profile (15, 15 '), so that the secondary rails (18, 18') of a solar module (2 ") in the assembly of an end region (9, 9 ', 10, 10 ') of the primary rails (8, 8') can be threaded onto the two T-sections (15, 15 ') of the corresponding, juxtaposed primary rails (8, 8') and the solar module (2 ") along the primary rails (8, 8 '). 8 ') is movable to its final position.

7. Mounting system according to one of claims 1-5, characterized in that the width of the slot of the T-slot (21, 21 ') of a secondary rail (19, 19') for receiving the vertical web of the T-profile (15 ", 15 "') is equal to or greater than the width of the horizontal web of the T-profile (15", 15'"), so that the secondary rails (19, 19 ') of a Solar module (2 "') during assembly at each point on the two T-profiles (15", 15 "') of the respective adjacent primary rails (8 ', 8") in the direction perpendicular to the solar module level placed and the secondary rails (19 , 19 ') with between the respective T-profile (15 ", 15'") and the respective T-slot (21, 21 ') insertable spacer bodies (22 ", 22"', 23 ", 23"') are fixable ,

8. Mounting system according to one of the preceding claims, characterized in that each of the four side parts of a solar module frame (3 - 3 "') by a respective secondary rail (51, 51', 52, 52 ') with T-slot (53, 53' , 54, 54 ') is formed.

9. Mounting system according to one of the preceding claims, characterized in that between a T-profile (15 - 15 '") and a T-slot (20, 20', 21, 21 ') usable spacer body (22, 23) is itself in the longitudinal direction to at least one end region in at least one plane of the spacer body is tapered (46, 47, 47 ') is formed.

10. Mounting system according to one of the preceding claims, characterized in that on the surface in each case one between a T-profile (15 - 15 "') and a T-slot (20, 20', 21, 21 ') insertable spacer body (22 , 23) ribs (48, 49), nubs (50) and / or other small elevations are formed.

11. Mounting system according to one of the preceding claims, characterized in that between a T-profile (15 - 15 "') and a spacer body (22 - 22'", 23 - 23 "') and between a spacer body (22 - 22 '', 23 - 23 '') and a T-groove (20, 20 ', 21, 21') is formed a frictional connection.

12. Mounting system according to one of the preceding claims, characterized in that the outer, in a first (5) or second edge region (6) of the total module surface (4) arranged solar modules (2 - 2 "') by means in the first (9 - 9" ) or second end region (10 - 10 ") of the primary rails (8 - 8") arranged holding means (33, 34) against displacement along the T-profiles (15 - 15 "') of the primary rails (8 - 8") are fixable and in that the fastening means (35, 36) of these retaining means (33, 34) optionally also prevent at least a part of the outer end spacers (22 - 22 '") mounted on a T-profile (15-15"') from being displaced.

13. Mounting system according to claim 12, characterized in that in addition to an outer solar module (2, 2 ') mounted holding means (34 - 34 ") has a groove (42), in particular a T-slot, and that in the assembled state, the T. Profile (15-15 '' ') of a primary rail (8-8' ') on which the outer solar module (2, 2') is arranged, essentially in a form-fitting manner in the groove (42) of the holding means (34-34 '). ) runs.

14. Mounting system according to one of the preceding claims, characterized in that in the assembled state, a common fastening means (35) or the respective fastening means for a first holding means (33) and for a first Enddistanz- body (22), which first holding means (33). a solar module (2 ") mounted in a first edge region (5) of the total module surface (4) against displacement along the T-profile (15) of a primary rail (8), in each case by the first end spacer (22) or by the secondary rail (18) a solar module frame (3 ") is arranged concealed, that a fastening means (36) for a second holding means (34), which second holding means (34) in a second edge region (6) of the total module surface (4) mounted solar module (2) against displacement along the T-profile (15) secures a primary rail (8), only more destructive or can be solved with special tools, in particular by the execution of the Befestigungsmit means (36) of the second holding means (34) as a tear-off screw or coded screw, and in that the fastening means (57, 57 ') of the primary rail (8) are concealed from the solar modules (2, 2 ").

15. Mounting system according to one of the preceding claims, characterized in that between two each in the longitudinal direction of the primary rails (8 - 8 ") adjacent solar modules (2 - 2" ') in the assembled state intermediate distance body (23 - 23' ") are formed, whose first spacer section (27) lies between the T-profile (15-15 "') and T-slot (20, 20', 21, 21 ') of the first solar module (2", 2 "') and whose second spacer section (28 ) between T-profile (15 - 15 '") and T-slot of the second, next to the solar module (2, 2') is located.

16. Mounting system according to claim 15, characterized in that an intermediate spacer (23 - 23 '") along its longitudinal central axis (29) is divisible, so that the two parts (30, 31) at each point to a T-profile (15 - 31). 15 "') and can be assembled into a complete intermediate spacer (23 - 23"').

17. Mounting system according to claim 15 or 16, characterized in that a

Intermediate spacer (23 - 23 '") centrally and transversely with respect to its longitudinal direction has a top side disposed central web (32) having a thickness of 1 mm to 10 mm, preferably 2 mm to 7 mm, in particular 3 mm to 4 mm, so that the both solar modules (2 - 2 "') pushed onto the intermediate dance body (23 - 23"') are spaced apart in the assembled state by the central web (32) and the intermediate spacer (23 - 23 "') is longitudinally spaced from the primary (8 18. The mounting system according to any one of the preceding claims, characterized in that the overall height of the structure (8, 8 ') or secondary rail (16, 16', 17, 17 ', 18, 18', 19, 19 ') is fixed in its position. 43) of a primary rail (8-8 ") and a secondary rail (16, 16 ', 17, 17', 18, 18 ', 19, 19') fixed thereon with a spacer body (22 - 22"', 23 - 23'")') is less than 90 mm, preferably less than 80 mm. 19. Mounting system according to one of the preceding claims, characterized in that the gap (44, 44 ') between the grid-shaped arranged solar modules (2 - 2 "') in the assembled state less than 20 mm, preferably less than 10 mm, in particular around 3 20. Method for mounting the frame (3 - 3 ''') of rectangular photovoltaic solar modules (2 - 2'') on underlying, in particular fixedly mounted, primary rails (8-8'') in one first step several primary rails (8-8 ") are mounted substantially parallel and extending in a plane on a substructure, in which primary rails (8-8") at the top in each case at least one vertical, in the longitudinal direction of the primary rail (8 - 8 "). ) and wherein two opposite, parallel to the primary rails (8 - 8 ") side parts of a solar module frame (3 - 3 '") by secondary rails (16, 16') , 17, 17 ', 18, 18', 19, 19 ') are formed, which on the lower sides in each case one in the direction of the longitudinal axis of a secondary rail (16, 16', 17, 17 ', 18, 18', 19, 19 ') running, integrated T-groove (20, 20', 21, 21 '), characterized by the further steps: pushing on a first, in cross-section substantially C- (24) or U-shaped (25) Enddistanzkörpers (22 - 22 '") on a first end portion (11 - 11"') each having a T-profile (15 - 15 "'), fixing a first holding means (33, 33') optionally together with the first Enddis (22 - 22 "') with a (35 - 35") fastener in the first end (9 - 9 ") of a primary rail (8 - 8"), so that the respective first end spacer (22 - 22 "') moves against of the T-profile (15 - 15 "') of the primary rail (8 - 8"), attaching one or more solar modules (2 - 2 "') to the T-profiles (15 - 15 '") of the primary rails (8-8 "), wherein the in a first edge region (5) of the total module surface (4) lying solar modules (2", 2 '") by means of the underside of the secondary rails (18,

18 ', 19,

19 ') formed T-slots (20, 20', 21, 21 ') on the first Enddistanzkörper (22 - 22 "') are pushed, attaching intermediate spacers (23 - 23" ') between two in the longitudinal direction of the primary rails (8 - 8 ") adjacent solar modules (2 - 2" '), wherein each one of the two spacer sections (27, 28) of an intermediate spacer (23 - 23 "') in the T-slot (20,

20 ', 21, 21') of the secondary rail (16, 16 ', 17, 17', 18, 18 ', 19, 19') of one of the two adjacent solar modules (2 - 2 "') is inserted, pushing on a second End spacer (45 - 45 ") on a second end area (12 - 12" ') each of a T-profile (15 - 15 "'), inserting this second Enddistanzkörpers (45 - 45") in the T-slot of the secondary rail (16 , 16 ', 17, 17') of the respective in a second

Edge region (6) of the total module surface (4) lying solar modules (2, 2 ') and fixing a second holding means (34 - 34 ") in the second end region (12 - 12"') of the respective T-profile (15 - 15 '") with a fastener (36-36 "), such as a tear-off screw or a coded screw, which is in particular only more destructive or can be detached with a special tool, so that the solar modules (2, 2 ') mounted in the second edge region (6) of the total module surface (4) oppose Moving along the T-profiles (15 - 15 "') of the primary rails (8 - 8") are secured.

21. The method according to claim 20, characterized in that the T-slots (20, 20 ') of the secondary rails (18, 18') of a solar module (2 "), which T-slots (20, 20 ') the

T-profiles (15, 15 ') of the primary rails (8, 8') playfully encompassed with play, on the two T-profiles (15, 15 ') of the corresponding, juxtaposed primary rails (8, 8') of an end region (9 , 9 ', 10, 10') of the primary rails (8, 8 ') are threaded, the solar module (2 ") is brought into position along the primary rails (8, 8') and fitted with spacers (22, 22 ', 23 , 23 ') is fixed positively free of play.

22. The method according to claim 20, characterized in that the T-slots (21, 21 ') of the secondary rails (19, 19') of a solar module (2 '") on the two T-profiles (15", 15 '") of the corresponding juxtaposed primary rails (8', 8") are placed from above perpendicular to the solar module level and the solar module (2 '") with spacers (22", 22 "', 23", 23 "') backlash is fixed positively.

23. The method according to any one of claims 20 - 22, characterized in that the intermediate spacers (23 - 23 '") on the T-profiles (15 - 15'") of the primary rails (8 - 8 ") from an end region (9 -. 9 ", 10 - 10") of the primary rails (8-8 ") are threaded and in the T-slots (20, 20 ', 21, 21') of the secondary rails (18, 18 ', 19, 19') of the Solar modules (2 ", 2 '") are inserted.

24. The method according to any one of claims 20 - 22, characterized in that in each case the two parts (30, 31) of dividing along their longitudinal axis Zwischendistanzkör- pern (23 - 23 "') on the T-profiles (15 - 15"' ), and the complete intermediate spacers (23 - 23 '") into the T-slots (20, 20', 21, 21 ') of the secondary rails (18, 18', 19, 19 ') of the solar modules (2", 2 '") are inserted.

25. The method according to claim 21, characterized in that for bringing into position of the solar modules (2, 2 ") along the T-profiles (15, 15 ') of the primary rails (8, 8') slide or rolling spacer in the T Grooves (20, 20 ') of the secondary rails (16, 16', 18, 18 ') are inserted and that these slide or rolling spacer after positioning of the solar modules (2, 2 ") left or according to their position by end (22 ) or intermediate spacers (23) are exchanged.