Support for at least one solar module, in particular PV module, and solar installation having such support

Abstract

The invention relates to a carrier (2) for at least one solar module (3), in particular a PV module, and to a solar installation (1) having such a carrier (2). In order to achieve stability against wind loads, it is proposed that the carrier (2) has elongated wind blocking elements (10a, 10b) which comprise an upper and a lower edge (14, 15) and are made of sheet metal, which are arranged behind the higher carrier (8b) of the holding element (5) when viewed from the lower carrier (8a) of the holding element (5) and are each fastened to the row (4a, 4b, 4c) by means of fastening means (11a, 11b, 11c), wherein each fixing element (11a, 11b, 11c) has at least two holding receptacles (12a, 12b) which are arranged at a distance (AL) from one to the other over a row longitudinal extension (L) of the associated row and which each have a covered channel (13a, 13b) into which an upper edge (14) or a lower edge (15) of the wind shield element (10a, 10b) engages in order to hold the wind shield element (10a, 10b) on the support (2).

Description

TECHNICAL FIELD

[0001] The invention relates to a rack for at least one solar module, in particular a PV module, having at least two rows extending side by side at a distance and parallel to each other, the rows each having at least one holding element made of sheet metal for fastening the solar module, wherein the holding element has a base forming a support surface for the holding element and two brackets protruding from the base at different heights, such that a solar module placed on the brackets assumes an inclined attitude with respect to the support surface. BACKGROUND

[0002] In order to arrange the solar modules in an inclined attitude in a so-called south orientation, racks having holding elements arranged in rows are known, which hold solar modules having the same inclination in the range of 6 to 45 degrees arranged one behind the other. For this purpose, the holding elements arranged side by side each have a base forming a support surface for the holding element and two brackets protruding from the base at different heights. In such a rack in south orientation, there are disadvantageously relatively large openings between two solar modules arranged one behind the other, which makes the rack susceptible to wind loads. Therefore, the rack requires significant constructive measures in order to stably hold the solar modules on the rack and to stably hold the rack on the substructure.

[0003] It is known for racks of rack structures that those openings in the rack formed due to the south orientation should be closed with wind deflectors as wind shielding elements (DE 102010014859 B4). The wind deflectors are fastened on the rack structure by means of fixing elements consisting of blind rivets, which disadvantageously requires high installation costs. SUMMARY

[0004] It is therefore the object of the invention to derive from the prior art a rack which is stable against wind loads and which is relatively simple to install.

[0005] The invention achieves this object by the features of claim 1.

[0006] Since the bracket has elongated wind deflector elements which comprise an upper edge and a lower edge and are made of sheet metal, the wind deflector elements are arranged behind the higher carriers of the holding elements, viewed from the lower carriers of the holding elements, and are fastened on the rows respectively by means of the fixtures, it is possible for the erected position facing the wind load to be formed more stably in a known manner first of all. When each fixture has holding receptacles which are arranged at a distance from one another on the row longitudinal extent of the respective row and are opposite one another and the holding receptacles each have a recess into which the upper edge or the lower edge of the wind deflector element is inserted in order to hold the wind deflector element on the bracket, the supplementation by means of the wind deflector elements can be operated particularly simply in terms of assembly and maintenance first of all in this way. Thus, the wind deflector elements are inserted into only two holding receptacles at each row, which can be achieved by means of a push-in, click-in or the like action. It is therefore not necessary for screwing elements to have to be passed through openings in order to fasten the wind deflector elements on the bracket, which is also advantageous since, for such openings, dimensional tolerances can lead to high installation costs. The fixtures according to the application with the recesses require more lenient dimensional tolerances and also ensure simple and fast installation, contrary to this.

[0007] Preferably, the wind deflector elements are held against the rows under bending stress by means of a point of contact or a contact surface respectively formed by the recesses of the holding receptacles and by means of at least one third point of contact or third contact surface located between the holding receptacles. In this way, the installed wind deflector elements can be clamped on the bracket, whereby the stability facing the wind load can be further improved.

[0008] The stability can be further improved exemplarily in that the wind deflector elements are held against the rows under bending stress by means of a fourth point of contact or fourth contact surface located between the holding receptacles.

[0009] Preferably, the rows each have a profile which bulges outwards over the row longitudinal extent between the holding receptacles opposite one another for the wind deflector elements to be held against. In this way, the bending stress of the wind deflector elements can be improved exemplarily in a structurally simple manner.

[0010] Preferably, the wind deflector elements have longitudinal grooves in order to withstand the increased bending stress as a result of the wind load. Such longitudinal grooves can be configured to extend centrally and / or even be open in order to further improve the mechanical stability. For example, the longitudinal grooves are trapezoidal grooves.

[0011] It can be provided that the upper edge and / or the lower edge is formed by a folded edge on the wind deflector element in order to improve the mechanical stability of the wind deflector element at the section in which it is inserted into the holding receptacle. The stability of the bracket facing the wind can thus be further improved.

[0012] The mechanical stability of the wind deflector element can be further improved if the fold and the longitudinal groove are introduced in a counter-posed manner.

[0013] The structural design can be further simplified if the recess is formed by a tongue-shaped plate that is bent to the holding receptacle of the recess. Such a tongue-shaped plate can also be introduced in a reproducible manner in the metal plate of the holding element or in the metal plate of the connecting element made of metal in the process.

[0014] Preferably, the wind deflector element is supported in the holder in such a way that it can be translated along its longitudinal direction. In particular, the installation can thus also be carried out more simply, since it is less affected by dimensional tolerances and also less affected by installation errors when aligning the two rows with one another.

[0015] The installation can be further facilitated, exemplarily, if the upper edge and / or the lower edge of the wind deflector element extends straight at least in the region of the holding receptacle, in particular over the entire length of the wind deflector element. This is even more true if the course of the upper edge and / or the lower edge of the wind deflector element is provided over the entire length of the wind deflector element.

[0016] Preferably, the holding receptacles that are opposite one another are located on the holding element. Preferably, the holding receptacles that are opposite one another are formed by the metal plate of the holding element.

[0017] It is also conceivable to arrange the holding receptacles that are opposite one another on a connecting element made of metal, which is connected to the holding element. Preferably, the holding receptacles that are opposite one another are formed by the metal plate of the connecting element.

[0018] Preferably, the fixing is configured for receiving two overlapping wind deflector elements, in order to thereby be able to compensate for dimensional tolerances in the installation in an easily operable manner.

[0019] In particular, it is advantageous if the holder has at least three rows and the overlapping wind deflector elements are inserted into at least two holding receptacles of the fixing that are arranged between the first row and the second row of the second row that are opposite one another.

[0020] The fixing can be constructed to be mechanically more robust if each fixing has a plurality of pairs of groups and the pairs of groups consist of two holding receptacles of the fixing that are directly opposite one another in the longitudinal direction.

[0021] The wind deflector element according to the application is particularly suitable for a solar device having at least one solar module that is fastened on the holder. BRIEF DESCRIPTION OF DRAWINGS

[0022] The subject matter of the application is shown in detail in the drawings, exemplarily by way of an embodiment variant. Therein: Figure 1 A three-dimensional view of a solar panel with a support frame is shown. Figure 2 It shows that according to Figure 1 A side view of a row of brackets. Figure 2a , 2b It shows Figure 2 Enlarged detail image, Figure 3 The image shows two windshield elements mounted according to... Figure 1 The side view of the bracket, and Figure 4 It shows that according to Figure 3 Top view of the installed windshield element. Detailed Implementation

[0023] according to Figure 1 An exemplary partially constructed solar energy device 1 is shown, which has a support frame 2 and multiple solar modules 3, i.e., PV modules. Three solar modules have been (shown in a partially interrupted manner) secured to the support frame 2, and a fourth solar module to be mounted on the support frame 2 in the lower left is implicitly shown by a dashed line.

[0024] The bracket 2 shown has three rows 4a, 4b, and 4c arranged side-by-side and extending in parallel at a distance A, which are shown in exactly the same manner. For this purpose, rows 4a, 4b, and 4c each have retaining elements 5 composed of metal plates and metal plate connecting elements 6, arranged in a continuous alternation with each other. The connecting elements 6 connect the retaining elements 5 within a row 4a, 4b, or 4c to each other; however, in an alternative embodiment (not shown), this is not necessarily required if the retaining elements (not shown) also form connecting elements during their forming process. Therefore, it is also conceivable that rows 4a, 4b, and 4c are each formed by at least one retaining element, as shown in this case. Rows 4a, 4b, and 4c may also each have at least one retaining element 5 and at least one connecting element 6. This forms continuous rows 4a, 4b, and 4c on the bracket 2 to secure the solar module 3.

[0025] The retaining elements 5 arranged side by side each have a base 7 on the foundation for supporting the retaining element 5 with a support surface 9a, and two brackets 8a and 8b protruding from the base 7 at different heights, wherein the second bracket 8b protrudes higher than the first bracket 8a. For this purpose, the retaining elements 5 in each row 4a, 4b, 4c are aligned with each other without offset and are therefore directly separated by a distance A and placed side by side.

[0026] The solar element 3 placed on it thus forms an inclined posture relative to the support surface 9a.

[0027] likeFigure 1 As can be seen at the upper edge of the solar module 3, openings are formed in the holder 2 through which wind can disadvantageously enter underneath the solar module 3.

[0028] According to the application, these openings are reduced and thus closed by elongate wind deflector elements 10a, 10b made of sheet metal. The wind deflector elements 10a, 10b are arranged behind the higher second carrier 8b of the holding element 5 along the row longitudinal extension (L) as viewed from the lower first carrier 8a of the holding element 5 and are fastened at the rows 4a, 4b or 4b, 4c respectively by means of the fastening elements 11a, 11b, 11c.

[0029] The first fastening element 11a, the second fastening element 11b and the third fastening element 11c are constructed identically. Thus, each of the fastening elements 11a, 11b, 11c has at least two holding receptacles 12a, 12b, which each have a recess 13a, 13b. These holding receptacles 12a, 12b are arranged at a distance AL from one another and opposite one another on the row longitudinal extension L of the respective row 4a, 4b, 4c, as can be seen in Figure 2 , Figure 2a and Figure 2b . These two holding receptacles 12a, 12b thus form a pair group 12 on the respective fastening element 11a, 11b, 11c, wherein preferably the two holding receptacles 12a, 12b of each pair group 12 are directly opposite one another.

[0030] The upper edge 14 or the lower edge 15 of the wind deflector elements 10a, 10b is clipped into the recesses 13a, 13b on each row 4a, 4b, 4c, which makes the wind deflector elements firmly fixed on the holder 2. The wind deflector elements 10a, 10b are thus relatively easy to install when installed, are also securely fastened on the holder 2 and can thus withstand high wind forces.

[0031] But the wind deflector elements 10a, 10b do not only lie against the connecting elements 6 at the recesses 13a, 13b and thus have a first lying surface Al and a second lying surface A2. In addition, the wind deflector elements 10a, 10b also lie against the respective row 4a, 4b, 4c by means of two further lying surfaces A3, A4. The third lying surface A3 and the fourth lying surface A4 are arranged between the recesses 13a, 13b, for which see Figure 2 , Figure 2a and Figure 2b . This lying is achieved by the bending stresses of the wind deflector elements 10a, 10b, which makes the wind deflector elements extremely firmly held on the holder 2, as can be seen in Figure 3 . According to Figure 3It is shown that the upper edge 14 of the wind deflector element 10b has not yet been bent into the retaining receiver 12a. The required curvature of the wind deflector elements 10a and 10b will secure the wind deflector elements into the retaining receivers 12a and 12b. Figure 3 Two wind deflector elements 10a and 10b are illustrated exemplarily. It is evident that this locking also occurs when only a single wind deflector element 10a holds the fasteners 11a, 11b, and 11c in place. Achieving a close fit through bending also ensures no gaps, which primarily avoids unwanted noise when facing wind loads.

[0032] In addition, such as Figure 3 As exemplarily shown, the connecting element 6 or rows 4a, 4b, 4c each have an outwardly raised direction 19 on the longitudinal extension L of the row between the mutually opposing retaining receiving portions 12a, 12b, so that the wind deflector elements 10a, 10b fit together, which further improves the retention of the wind deflector elements 10a, 10b on the bracket 2.

[0033] The bending stress is adjusted by the open longitudinal groove 16 (i.e., trapezoidal groove) extending in the middle on the corresponding windproof elements 10a and 10b.

[0034] Further advantageously, the upper edge 14 and the lower edge 15 are formed by folded edges 17 on the wind deflector elements 10a and 10b, wherein the folded edges 17 and the longitudinal groove 16 are positioned in opposite directions on the wind deflector elements 10a and 10b.

[0035] In terms of a simple solution in terms of structural design, the recesses 13a and 13b are formed by tongue-shaped plates 18a and 18b that are bent toward the receiving portions 12a and 13b, respectively. The tongue-shaped plates 18a and 18b are introduced into the metal plate of the connecting element 6 through a sheet metal forming process, and thus can be manufactured in a low-cost and durable manner.

[0036] like Figures 1 to 4 As can be seen, the wind deflector elements 10a and 10b are supported in the fixing members 11a, 11b, and 11c in a manner that allows them to translate along their longitudinal direction WL. This results in a linear retrieval member, which makes it easy to correct the position of the wind deflector elements 10a and 10b. Furthermore, the upper edge 14 and lower edge 15 of each wind deflector element 10a and 10b extend straight along the entire length of the wind deflector element, further simplifying installation.

[0037] Since each fixing member 11a, 11b, 11c is provided with two pairs 12 for retaining the receiving parts 12a, 12b, the linear receiving member is also fixed to prevent tipping. Figure 4 As shown in the image.

[0038] existFigure 3 and Figure 4 It can also be seen in that the two wind deflector elements 10a, 10b in the second fixing 11b overlap, which makes the bracket 2 stably protected against wind loads. This is visible in Figure 4 in that the first and second wind deflector elements 10a, 10b in the pair of groups 12 to the left of the two mutually opposite holding receptacles 12a, 12b are embedded in the associated dark slots 13a, 13b. As is shown in Figure 3 the two wind deflector elements 10a, 10b fit in a curved stress situation, which makes them stably held on the bracket 2. This design can also allow the use of wind deflector elements 10a, 10b of different lengths or to offset installation errors, for example in the spacing A between the rows 4a, 4b, 4c, in an easy-to-operate manner.

[0039] It is generally provided that "particularly" can be translated into English "more particularly". A feature preceded by "particularly" should be considered as an optional feature that can be dispensed with and does not constitute a limitation to, for example, a claim. The same applies to "preferably", which is translated into English "preferably".

Claims

1. A bracket for at least one solar module (3), particularly a PV module, the bracket having at least two rows (4a, 4b, 4c) spaced apart (A) and extending parallel to each other, each having at least one retaining element (5) made of a metal plate for securing the solar module (3), wherein, The retaining element (5) has a base (7) forming a support surface (9a) for the retaining element (5) and two brackets (8a, 8b) protruding from the base (7) at different heights, so that the solar module (3) placed on the brackets (8a, 8b) forms an inclined posture relative to the support surface (9a). The bracket (2) is characterized by having an elongated windbreak element (10a, 10b) made of a metal plate, the windbreak element having an upper edge (14) and a lower edge (15) from the retaining element (5). Starting with the lower bracket (8a) of the holding element (5), the windbreak element is arranged behind the higher bracket (8b) of the holding element (5) and fastened to the rows (4a, 4b, 4c) by fasteners (11a, 11b, 11c), wherein each fastener (11a, 11b, 11c) has at least two retaining receptacles (12a, 12b), which are arranged to be spaced apart by a distance (A) on the longitudinal extension (L) of the associated rows (4a, 4b, 4c). L And opposite to each other, each of the retaining receiving parts has a recess (13a, 13b), and the upper edge (14) or lower edge (15) of the windproof element (10a, 10b) is embedded in the recess (13a, 13b) to retain the windproof element (10a, 10b) on the bracket (2).

2. The bracket according to claim 1, characterized in that, The windproof elements (10a, 10b) are respectively attached to the rows (4a, 4b, 4c) by the contact points or contact surfaces (A1, A2) formed by the grooves (13a, 13b) of the retaining and receiving parts (12a, 12b) and by at least one third contact point or third contact surface (A3) between the retaining and receiving parts under bending stress.

3. The bracket according to claim 2, characterized in that, The windproof elements (10a, 10b) are attached to the rows (4a, 4b, 4c) under bending stress through a fourth contact point or fourth contact surface (A4) between the retaining and receiving portions.

4. The stent according to any one of claims 1 to 3, characterized in that, The rows (4a, 4b, 4c) each have an outwardly raised direction (19) on the longitudinal extension (L) of the row between the opposite retaining and receiving portions (12a, 12b) for the windproof elements (10a, 10b) to abut.

5. The stent according to any one of claims 1 to 4, characterized in that, The wind deflector elements (10a, 10b) have longitudinal grooves (16), and in particular, the wind deflector elements have open and / or centrally extending longitudinal grooves, which are in particular trapezoidal grooves.

6. The stent according to any one of claims 1 to 5, characterized in that, The upper edge (14) and / or the lower edge (15) are formed by the folded edge (17) on the windproof element (10a, 10b).

7. The bracket according to claim 6, characterized in that, The flange (17) and the longitudinal groove (16) located on the windproof elements (10a, 10b) are introduced in a reversed position.

8. The stent according to any one of claims 1 to 7, characterized in that, The dark grooves (13a, 13b) are formed by tongue-shaped plates (18a, 18b) that bend toward the retaining and receiving portion (12a, 12b) of the dark groove.

9. The stent according to any one of claims 1 to 8, characterized in that, The wind deflector elements (10a, 10b) are supported in the fasteners (11a, 11b, 11c) in a manner that allows them to translate along the longitudinal direction (LW) of the wind deflector elements.

10. The stent according to claim 9, characterized in that, The upper edge (14) and / or the lower edge (15) of the wind deflector (10a, 10b) extend straight at least within the range of the retaining receiving portion (12a, 12b), and in particular, the upper edge (14) and / or the lower edge (15) of the wind deflector (10a, 10b) extend straight over the entire length of the wind deflector (10a, 10b).

11. The stent according to any one of claims 1 to 10, characterized in that, Retaining receiving portions (12a, 12b) opposite to each other are arranged on the retaining element (5) or on the connecting element (6) made of metal plate connected to the retaining element (5). In particular, the retaining receiving portions opposite to each other are formed by the connecting element made of metal plate connected to the retaining element.

12. The stent according to any one of claims 1 to 11, characterized in that, The fasteners (11a, 11b, 11c) are configured to receive two overlapping windbreak elements (10a, 10b).

13. The stent according to claim 12, characterized in that, The bracket has at least three rows (4a, 4b, 4c), and two overlapping windproof elements (10a, 10b) are embedded in at least two of the opposing retaining receptacles (12a, 12b) of the fastener (11b) of the second row (4b), the fastener being arranged between the first row (4a) and the second row (4b).

14. The stent according to any one of claims 1 to 13, characterized in that, Each fastener (11a, 11b, 11c) has multiple pairs (12), each pair consisting of two retaining receiving parts (12a, 12b) of the fastener (11a, 11b, 11c) that are directly opposite each other in the longitudinal direction (L).

15. A solar energy device having at least one solar module (3) and a bracket (2) according to any one of claims 1 to 14, wherein the solar module (3) is fastened to the bracket.

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