EP2836770A2

EP2836770A2 - Kit for a device for retaining solar elements

Info

Publication number: EP2836770A2
Application number: EP13717017.1A
Authority: EP
Inventors: Markus BRINK
Original assignee: Richard Brink GmbH and Co KG
Current assignee: Richard Brink GmbH and Co KG
Priority date: 2012-04-13
Filing date: 2013-04-12
Publication date: 2015-02-18
Also published as: WO2013153200A2; WO2013153200A3; DE202012101346U1

Abstract

A kit for a device which is intended for retaining obliquely positioned solar elements (3) and can be set up on a substantially horizontal surface, having at least two supporting elements (2) which, in the functional position, form a bearing means for the solar elements (3), are spaced apart from one another, and connected to one another, and each have a triangular frame (5) consisting of frame parts, wherein the frame parts are in the form of at least one bearing rail (4), of at least one bearing limb (6, 6´) and/or of a supporting limb (7) made of sheet-metal mouldings, is designed such that each bearing limb (6, 6´) has angled fastening lugs (12) which engage behind the underside of a frame (23) of the solar element (3) located above.

Description

Kit of a holding device for solar elements

The invention relates to a kit of a holding device for solar elements according to the preamble of claim 1.

Such holding devices are mainly used in the installation of solar panels on flat roofs or other open spaces, which are not or only slightly inclined, <15 °. In order to obtain a sufficient incidence of sunlight on the solar elements, which are formed on a support for the solar elements supporting elements as a triangular frame, depending on the orientation of the holding device or the solar elements, ie in the south or east-west direction, the respective support element Supports leg or two, on each of which a solar element rests.

Generic holding devices are disclosed in EP 2 372 268 A2. Therein it is proposed to prefabricate the triangular support elements and deliver them to the construction site.

In particular, in a large-scale installation of solar panels, as they are often mounted on industrial buildings or other large areas arise through the pre-assembly of the fixtures problems, especially logistical, since the support elements by their bulky spatial form during transport take up relatively much space, resulting in optimal use of handicapped available transport space.

In addition, the prefabricated support elements from the unloading station to the assembly point are difficult to move due to their bulkiness and with a corresponding effort.

In principle, the known from the cited prior art holding devices, in particular functionally proven. However, their production is possible only with a relatively high manufacturing outlay, which does not meet the ever-required cost optimization to the desired or desired level. For attachment of the solar elements brackets are known, which are attached to the frame parts, in particular the support legs, for example by screw and attack the upper side of the solar element and this clamp against the support legs.

Naturally, the provision of such brackets is possible only with a corresponding manufacturing effort, which also precludes cost minimization. This also includes that the mounting of the brackets after laying the solar panels is relatively cumbersome, time-consuming and expensive.

The invention has for its object to further develop a kit of the generic type so that it can be produced with low production costs and a simpler and faster handling and installation of the solar elements is possible.

This object is achieved by a kit with the features of claim 1. The invention offers the possibility of the solar panels on the set up

Holding device without separate brackets to attach what the usually inwardly angled, used for solar element body open circumferential frame is used, which is engaged behind by opposite the support legs by bending angled mounting straps.

In this case, at least a portion of the fastening tabs designed as a hook is provided with an open slot, in which the angled portion of the frame is inserted, wherein the pushing in the downward direction of the inclined support legs takes place.

In addition to the attachment tabs, which engage in the frame of the solar element, a further clip-like stop is provided for further vertical securing of the solar element to the insertion direction in the lower end region of the support limb, ie, in the connection region of a support rail with the support limb, as it were undercut by the solar element is so that it rests with a contact surface on the top of the solar element. A lateral fixation, ie a displacement protection in the lateral direction for the respective solar element is also achieved by mounting straps, which are formed angled according to the invention to the support legs and engage in the frame.

In order to achieve an always the same exact distance between two adjacent solar elements, each support leg on at least two spacers, which can also be made by bending or bending a corresponding punching.

In any case, the invention offers considerable manufacturing and assembly advantages both in terms of cost minimization as well as the latter in terms of optimized handling. According to a further aspect of the invention, the frame parts are at least partially assembled as individual parts ready for assembly and provided with positive locking elements for connecting at least a portion of the frame parts together. In this way, at least the frame parts of a support element can be combined into a package, with a small volume, through which a transport, usually by means of a commercial vehicle, to the site and from there to the installation easier and cheaper. The latter in particular because an available transport space can be used optimally. But also the assembly of the support elements or the entire holding device is simple and above all, it is possible in an extremely short time.

In particular, the provided positive-locking elements contribute to this, which are attached during the prefabrication of the frame parts, so that they merely have to be plugged together and a connection is produced by jamming or latching.

Of course, if necessary, it is also possible to subsequently screw or rivet the frame parts, with such screw connections also being seen as form-locking connections.

In order to facilitate a screw connection, at potential connection points, for example, a so-called blind nut can be used for prefabrication are mounted, can be screwed into the screws, preferably the same screws are used.

Primarily, however, the connection of the frame parts by said positive engagement. The interlocking elements, for example in the form of tongues and slots or the like, are incorporated in the production of the individual frame parts the same, usually by punching and optionally edges. The frame parts themselves, which are U- or angular in cross-section, are made of sheet metal, preferably galvanized steel sheet is used, with a thickness of about 1, 5 mm. As a result, a galvanic flow of the zinc plating is also achieved at the cut edges of the shaped sheet metal parts, without the need for any special aftertreatment. This ensures a lasting corrosion protection for the sheet metal parts as a whole.

The dimensional specification, in particular the cross-sectional dimensions of the individual parts is chosen so that they are interleaved, i. stackable so as to take up as little space as possible for transportation.

In addition to the production of sheet steel, and stainless, it is of course possible to produce the sheet metal parts made of light metal, especially aluminum or aluminum alloys, but due to the material properties of aluminum larger bending radii must be complied with.

Further advantageous embodiments of the invention are characterized in the subclaims.

Embodiments of the invention will be described below with reference to the accompanying drawings.

Show it:

1 shows a mounted with kits according to the invention holding device in a perspective view

characters 2 and 3 are each an enlarged partial section of the holding device according to Figure 1, as indicated by II or III

Figure 4 shows another embodiment of a holding device, also shown diagrammatically

FIG. 5 shows a part of the holding device according to FIG. 4

FIG. 6 shows an enlarged detail according to the detail VI in FIG. 5

Figure 7 is a section through the part of Figure 5, corresponding to the line

VII-VII in FIG. 5

characters

8 and 9 each show a further embodiment of a holding device according to the invention as a detail in a perspective view.

FIGS. 1 and 4 show various exemplary embodiments of a holding device 1, which can be erected on a substantially horizontal surface, for inclined solar elements 3, which has a plurality of supporting elements 2 forming a support for the solar elements 3 in the functional position, against which two congruent separate ones are opposite one another and in each case have a triangular frame 5 consisting of frame parts.

The frame parts of each frame 5 are formed from a support rail 4, which rest on an on-site support, for example on a flat roof and associated support legs 6, wherein the embodiment of Figure 1 is additionally provided with a support leg 7, which is integral with the support leg. 6 is connected and brought by bending in its angled end position.

For this purpose, in a prefabrication, the two opposite legs of the cross-sectionally U-shaped support leg 6 and the support leg 7 are correspondingly notched in the sense of a miter.

In order to prevent deterioration of a roof skin through the frame parts consisting of metal, preferably galvanized sheet steel, the bearing geflächen, so the undersides of the support legs 4 occupied with a non-metallic release liner or is such a separation layer disposed therebetween, for example, consisting of a building protection mat, or the like. While in the example shown in Figure 1, the configuration of holding devices 1 for a south orientation of the solar elements 3 is shown, the contiguous holding devices 1 are intended in the example of Figure 4 for an east-west orientation, in which a holding device carries two solar elements 3, which are arranged inclined in opposite directions.

In the example shown in Figure 1, the solar elements 3 are arranged one behind the other lying and indeed at a distance to ensure an optimal also for the underlying solar element incident of the sunlight or to prevent its shading.

Here, the desired or required distance is defined by the extension of the support leg 4 as can be seen in the illustration of Figure 1 right. According to the invention, the frame parts, that is to say the support rails 4, the support legs 6 and the support legs 7, are assembled ready for mounting and provided with positive-locking elements for connection to one another.

Like the support legs 6 and the support legs 7, the support rails 4 are also made in a U-shaped cross-section of sheet metal, the cross-sectional dimensions being kept such that the frame parts can be inserted into one another. In this case, the support leg 6 and the support leg 7 are stretched in the support rail 4. In mounted position, when the support leg 6 is tilted and the support leg 7 erect, the latter is held by inserted pins in hook slots 13 of the support rail 4 positively. To transport the combined unit support rail 4 / support leg 6 / support leg 7 4 receiving slots 15 are provided in the support rail, in which engage the pins of the support leg 7, so that the lowest possible height of the combined frame parts is given.

In the construction according to FIG. 4, it is possible to dispense with the use of a support leg 7, since in this case the two support limbs 6, which are integrally formed and kinked only at the construction site, support against each other.

As for the connection of the support leg 6 with the support leg 7, the opposite legs of the cross-sectionally U-shaped support leg 6 can be unlatched in the sense of a miter or alternatively overlap here, so in the example of Figure 4.

In this figure, two holding devices 1 are connected to each other, so that they are suitable for a total of four solar elements 3.

To connect the opposing holding devices 1 4 struts 14 are connected to the mutually parallel support rails, which are also positively connected to the support rails 4.

Each support leg 6 is provided on the side facing the solar elements 3 with a plurality of successive apertures 10, is prevented by the wind load creates a dynamic pressure by which the solar elements 3 could be solved.

This also contributes to the fact that in the embodiment of Figure 1, the back between the two support legs 7 is closed by a back plate 9. Each support leg 6 has in the region of the openings 10 at least one spacer 1 1, which extends after the prefabrication initially flachben with the corresponding side of the support leg and is bent only when mounting the holding device 1 to the outside, so that it has a lateral boundary for the Solar elements 3 forms, the distance is then determined by the width of the spacer 1 1.

On the edge 6 attachment tabs 12 are provided on the support legs, which can also be aufgebiegbar only when mounting the holding device 1 and 3 serve to attach the solar elements by hooking.

In this case, as can be seen in particular in Figures 2 and 3, each solar element 3 on a peripheral frame 23 which is provided on its side facing the support leg with a parallel to the broad side of the solar element 3 extending frame bar 24, said frame bar 24 extends to the solar element body. As a result, there is sufficient space for inserting this frame strip 24 into the fastening lug 12 formed as a hook, this hook-shaped fastening lug 12 being arranged in the upper end region of the support lug 6 facing the support limb 7, as shown in FIG. 2.

In order to prevent slippage of the solar elements 3, a stop 8 is fixed in the contact area of the solar elements 3 in the vicinity of the support rail 4, which is formed like a bow and shown as an enlarged detail in Figures 3, 6 and 7, wherein the figure 3 Represents position of the mounting tabs in the lower region, which also engages behind the frame 23 of the solar element 3 and forms a lateral fixation.

It can also be seen (FIG. 7) that the two opposite limbs of the stop 8 are designed as hooks 17 which, for mounting perpendicular to the support rail 4, pass through an insertion slot 16 of the support leg 6 and engage behind a clamping lug 18 of the support rail 4.

By pivoting according to the inclination of the support leg 6 so that the stopper 8 is perpendicular thereto, the hook 17 is brought in correspondence with the clamping plate 18 in a position in which it can no longer be solved when the solar element 3 is applied. As a result, a simple, easy to install positive connection is created without additional aids, such as screws or the like.

In this case, the support leg 6 is inserted into a sliding slot 22 of the free leg of the support rail 4, resulting in a solid positive connection. Incidentally, the support rails 4 can serve as a cable guide and be closed with a lid, which then preferably engages for attachment in the receiving slots 15, which are provided on the lid corresponding pins or blind nuts or the like to a

Make screw. The support rail 4 can also serve to receive weighting media, such as concrete slabs or the like.

In the examples shown in FIGS. 8 and 9, the support legs consist of support stubs 6 ^' , on which the respective solar element 3 only rests with one end region. Here, in the figure 6 is a construction shown, which corresponds in design to that of Figure 4, ie, is intended for an east-west orientation, with oppositely inclined solar elements 3. The mutually facing support stub 6 ^' , on which rests the respective upper portion of the solar elements 3, are connected by a vertical, connected to the support rail 4 support 20. The two support stub 6 ^' are integrally formed and are similar to the one-piece support legs 6 angled in the assembly by bending.

In the figure 9, which reproduces a holding device 1 comparable to that in Figure 8, the support stub 6 ^' and the support 20 are integrally formed, wherein the support 20 remote from the support stub 6 ^{' is followed by} a support strut 21, which bears against the support 20 ,

As a kit, the support stub 6 ^' , the support 20 and the support strut 21 are stretched and are in the support rail 4 a. For this purpose, the connected parts are prepared so far that a simple buckling in the functional position is possible.

LIST OF REFERENCE NUMBERS

1 retaining device

2 support element

3 solar element

4 support rail

5 frames

6 support legs

6 ^' Auflagestummel

7 support legs

8 stop

9 back plate

10 opening

1 1 spacer

12 mounting strap

13 hook slot

14 strut

15 receiving slot

16 plug-in slot

17 hooks

18 clamping strap

19 through opening

20 support

21 support strut

22 sliding slot

23 frames

24 frame border

Claims

claims

Construction kit of a holding device for inclined solar elements (3), which can be erected on a substantially horizontal surface, with at least two support elements (2) forming a support for the solar elements (3), which are spaced apart from each other and connected to each other and each one consisting of frame parts, triangular frame (5), wherein the frame parts in the form of at least one support rail (4), at least one support leg (6, 6 ^' ) and / or a support leg (7) are formed from sheet metal parts, characterized in that each Support leg (6, 6 ^' ) angled integrally formed fastening tabs (12) which engage behind a frame (23) of the overlying solar element (3) on the underside.

Kit according to claim 1, characterized in that the frame parts are at least partially assembled ready for assembly as individual parts and provided with positive-locking elements for connecting at least a portion of the frame parts together.

Kit according to claim 1 or 2, characterized in that two, obtusely arranged in function position, oppositely inclined support legs (6) are integrally formed and consist of a U-shaped folded in cross section sheet metal, wherein in the common connection region, the opposite legs in the sense mitred or overlapping.

Kit according to one of the preceding claims, characterized in that in the arrangement of a support leg (6) adjoins the support leg (7), which as well as the support leg (6) is positively connected to the support rail (4) in functional position.

Kit according to one of the preceding claims, characterized in that the cross-sectionally U-shaped support rail (4) and the one or more support legs (6) and / or the support legs (7) are dimensioned in their cross-sectional dimensions such that they are nestable , Kit according to one of the preceding claims, characterized in that the support rail (4) at their opposite legs each having a sliding slot (22) into which the support leg (6) is inserted end.

Kit according to one of the preceding claims, characterized in that in the connection region of the support rail (4) with the support leg (6) a bow-shaped stop (8) is provided, with parallel and spaced apart legs, in plug-in slots (16) of the support leg (16). 6) intervene.

Kit according to one of the preceding claims, characterized in that the limbs of the abutment (8) are designed as hooks (17) and in each case a clamping lug (18) of the support rail (4) in a position oriented at right angles to the support limb (6).

engage behind.

Kit according to one of the preceding claims, characterized in that the support leg (6) on its the solar element (3) side facing a spacer (1 1) in the form of a punched and bendable tab.

0. Kit according to one of the preceding claims, characterized in that the fastening tabs (12) on each of the solar element (3) facing edge region of the support legs (6, 6 ^' ) are arranged.

Kit according to one of the preceding claims, characterized in that the fastening tabs (12) in the stop (8) opposite end portion of the inclined support leg (6) are arranged, which are each formed as opposed to the inclination of open hooks.

Kit according to one of the preceding claims, characterized in that the support leg (6) consists of two mutually spaced Auflagestummeln (6 ^' ), wherein one of the support stub (6 ^' ) with the support rail (4) and the other support stub (6 ^' ) is connected to a support (20) fixed to the support rail (4).

13. Kit according to one of the preceding claims, characterized in that the support (20) and the two mutually obtuse support abutment (6 ^' ) and an adjoining support strut (21) are integrally formed and can be bent in the connection region.

14. Kit according to one of the preceding claims, characterized in that the support rail (4) receiving slots (15), in the interlocking elements in the form of blind nuts or screws with the support legs (6) or the support legs (7) or the support (20) in an extended position.

15. Kit according to one of the preceding claims, characterized in that each support leg (6) is provided on its support side with a plurality of openings (10).

16. Kit according to one of the preceding claims, characterized in that on the support legs (7) connecting them together a back plate (9) is connected.

17. Kit according to one of the preceding claims, characterized in that the frame parts made of galvanized sheet steel, preferably in a thickness of <1, 5 mm, or made of aluminum or an aluminum alloy.