Fastening device

Abstract

Fastening device for fastening a, preferably frameless, thin-film solar and / or thin-film photovoltaic module to a support rail, comprising a base (10) with at least one support (12) for placing the module, a clamping device (14) with a clamping section (16), wherein the clamping device (14) is adjustable relative to the base (10) such that the module can be clamped between the support (12) and the clamping section (16), wherein the support (12) and / or the clamping section (16) has a rubber coating (26), a fixing device (18) for fixing the clamping device (14), and a mounting claw (20) which is connected or connectable to the fixing device (18).

Description

The invention relates to a fastening device for fastening a module.The disadvantage of fastening devices known to date is that they are suitable only for thick solar and / or photovoltaic modules. If, on the other hand, attempts were made to fasten thin-film solar and / or thin-film photovoltaic modules with the aid of these fastening devices, damage could occur. Assembly is also frequently complex.It is therefore an object of the invention to provide a fastening device and a system which / s enable a thin-film solar and / or thin-film photovoltaic module to be fastened easily.This object is achieved by the subject matters of the independent claims.According to the invention, the fastening device, which can be referred to as a laminate clamp, for example, is designed for fastening a, preferably frameless, thin-film solar and / or thin-film photovoltaic module to a support rail, which can also be referred to as a mounting rail, and / or can be used for this purpose.The thickness of the thin-film solar and / or thin-film photovoltaic modules can be, for example, between 3 mm and 20 mm.For example, the support rails can be fastened or fastened to a roof by means of roof hooks. The roof can be, for example, an inclined roof.The fastening of the thin-film solar module and / or thin-film photovoltaic module to the support rail is then effected via the fastening device.Protection is claimed for both the mounted state (on the roof) and the unmounted state.The fastening device has a base with at least one support for placing the module, i.e. the thin-film solar and / or thin-film photovoltaic module.For example, in the mounted state, the base can rest on the support rail, engage in the latter and / or be fixed thereto.Furthermore, the fastening device has a clamping device with a clamping section.The clamping device is adjustable relative to the base in such a way that the module can be or is clamped between the support and the clamping section.Preferably, the base and / or the clamping device can comprise or consist of a metal material, preferably aluminum and / or (stainless) steel.The support and / or the clamping section has a rubber coating. The rubber coating can ensure that the clamped module is not damaged. In addition, the rubber coating increases the friction, so that a secure hold of the module is ensured.Furthermore, the fastening device has a fixing device for fixing the clamping device, e.g. on the base.Preferably, the fixing device is arranged centrally. For example, the fixing device can penetrate both the clamping device and the base.The fixing device prevents the module from being unintentionally released from the fastening device.Finally, the fastening device has a mounting claw which is connected, e.g. screwed, or connectable, e.g. screwable, to the fixing device.The mounting claw can have a latching end, for example. The latching end can be pressed into a support rail. Purely optionally, the mounting claw can spread open when the screw is screwed in. The latching end enables position-independent mounting on the support rail.The mounting claw serves, for example, for fastening to the support rail.The fastening device is preferably pre-assembled. For example, the fixing device can be connected to the mounting claw. This simplifies the mounting on the roof.Furthermore, the fastening device is preferably suitable for different support rails. The fastening device is thus versatile in use.Further developments of the invention can also be taken from the dependent claims, the description and the accompanying drawings.According to one embodiment, the fixing device has a screw or is designed as a screw.The screw enables the fastening device to be screwed in easily from above, whereby the assembly is considerably facilitated.The clamping device can be screwed directly to the base via the fixing device. Alternatively, an indirect fastening via the support rail is conceivable. In this case, the fixing device is fastened to the support rail via the mounting claw. In this case, the clamping device is pressed and fixed to the base.According to a further embodiment, the rubber coating comprises or consists of an ethylene-propylene-diene rubber (EPDM) material.The EPDM material ensures a stable and / or gentle fastening of the modules.Further, the EPDM material provides a long service life.According to a further embodiment, the rubber coating has a corrugation.Preferably, the corrugation is provided on the side facing the module. For example, this side can be completely corrugated.The corrugation can preferably be designed to be wave-shaped, saw-tooth-shaped and / or rectangular.The corrugation ensures a stable and / or gentle fastening of the modules.According to a further embodiment, the rubber coating of the support is L-shaped.The module can thus rest on a leg. The other leg may form a lateral stop for the module.Alternatively or additionally, the rubber coating of the clamping section can be L-shaped. Thus, the clamping section can form a lateral stop for the module.A lateral stop prevents the risk of damage.However, it is also possible for the rubber coating of the support and / or the rubber coating of the clamping section to form a planar surface. The rubber coating can be plate-shaped in this case.According to a further embodiment, the rubber coating has a latching nose.The latching lug can preferably extend over the entire length of the rubber coating.Preferably, the base in the region of the support and / or the clamping device in the region of the clamping section has an undercut indentation for the latching nose.The indentation can be adapted to the shape of the latching nose. The indentation preferably extends over the entire length of the base, e.g. of the support, or of the clamping device, e.g. of the clamping section.For example, the rubber coating can form a pressing rubber by the latching nose, i.e. the rubber coating can be pressed into the indentation of the base and / or of the clamping device in a simple manner and can thus be fastened. This enables a fast and / or simple (pre)mounting.According to a further embodiment, the mounting claw has a rotation prevention means.The mounting claw can preferably be adjusted relative to the base. The anti-rotation device limits the degrees of freedom of movement in this case. Thus, the mounting claw can preferably be moved only in the vertical direction due to the rotation prevention.Because rotation is prevented, assembly is facilitated.According to a further embodiment, the anti-rotation device has an angular contour at least in sections.The cross-sectional area is thus not completely round.The angular contour reliably prevents twisting.According to a further embodiment, the anti-rotation device has a rectangular, preferably square, contour.For example, the anti-rotation device can be formed as a square.Such a contour can be produced in a simple manner. In addition, rotation is thereby reliably prevented.According to a further embodiment, the base has a preferably precisely fitting recess for the anti-rotation device.The recess serves as a counterstop for the anti-rotation device.For example, the recess can have an angular cross-sectional area at least in sections.Preferably, the cross-sectional area is rectangular, e.g. square.The recess can be larger than the anti-rotation device. Thus, the anti-rotation device can be guided through the recess.According to a further embodiment, the length of the support and / or of the clamping section is at least 5 cm, preferably at least 7 cm.Preferably, the support and / or the clamping section is as long as the base or the clamping device.The module is thus clamped in a comparatively large area. The long clamping length ensures a stable and / or gentle fastening of the module.According to a further embodiment, exactly one support and exactly one clamping section are provided.Corresponding fastening devices are suitable for edge regions on the roof. Here, a module is only accommodated on one side of the fastening device.According to an alternative embodiment, two supports and two clamping sections are provided, which are arranged on opposite sides with respect to the fixing device.Corresponding fastening devices are suitable for middle regions on the roof. In this case, a module can be accommodated on each of the two opposite sides of the fastening device.The fastening device is preferably designed to be axially symmetrical. Thus, the orientation is level with fastening, so that assembly is simplified.The invention also relates to a system having a fastening device according to the invention and at least one, preferably frameless, thin-film solar and / or thin-film photovoltaic module.Preferably, the system comprises exactly one module or exactly two or more modules.For example, at least or exactly one support rail and / or at least or exactly one roof hook can also be a component of the system.The system may be in the mounted state (on the roof) or in the unmounted state.All aspects, embodiments and features of the invention described here can be combined with one another, preferably also separately from the specific configuration in the context of which they are mentioned. Preferably, all the subjects of the dependent claims can be combined with each other and with each subject of the independent claims.It is generally noted that terms such as "a" or "an" do not necessarily mean "exactly one" or "exactly one", this being likewise possible. The terms "a" and "an" can therefore be understood as "at least or exactly one" or "at least or exactly one". The use of the singular preferably includes the presence of the plural components and vice versa.It is noted that "preferably" and "preferably" may be translated as "preferably" to English. A feature introduced by "preferably" or "preferably" is purely optional, may be omitted and does not represent a limitation, for example of the claims.The invention is described below by way of example with reference to the drawings. The following are shown: FIG. 1 is a perspective view of an embodiment of a fastening device according to the invention, FIG. 2 shows a sectional view of the fastening device according to FIG. 1, FIG. 3 shows a further sectional view of the fastening device according to FIG. 1, FIG. 4 is a further perspective view of the fastening device according to FIG. 1 , FIG. 5 shows a perspective view of a further embodiment of a fastening device according to the invention, FIG. 6 shows a sectional view of the fastening device according to FIG. 5, FIG. 7 is a further sectional view of the fastening device according to FIG. 5, and FIG. 8 is a further perspective view of the fastening device according to FIG. 5.First, it should be noted that the illustrated embodiments are merely exemplary in nature. Thus, individual features can be realized not only in the combination shown, but also alone or in other technically meaningful combinations. For example, the features of one embodiment can be combined with features of another embodiment as desired. The number, length and / or shape of the rubber coatings is basically arbitrary.If a figure contains a reference sign which is not explained in the directly associated text of the description, reference is made to the corresponding preceding or following explanations in the description of the figures. Thus, the same reference numerals are used for identical or comparable components in the figures and these are not explained again.FIGS. 1 and 2 show a fastening device for fastening a thin-film solar and / or thin-film photovoltaic module (not shown) to a support rail (not shown).The fastening device has a base 10 with a support 12 for placing the module.Furthermore, the fastening device has a clamping device 14 with a clamping section 16.The clamping device 14 can be adjusted relative to the base 10, preferably in the vertical direction, in such a way that the module can be clamped between the support 12 and the clamping section 16.By means of a fixing device, for example designed as a screw 18, the clamping device 14 can be fixed in the desired position on the base 10.The fixing device 18 is connected, e.g. screwed, to a mounting claw 20 and / or engages in the mounting claw 20. Optionally, the mounting claw 20 can spread open when the fixing device 18 is screwed in. The fastening device can be fastened to the support rail via the mounting claw 20.Preferably, the fixing device 18 is arranged in a groove 22 of the clamping device 14. The groove 22 may extend over the entire length of the clamping device 14, for example. The fixing device 18 is protected in the groove 22.For example, the fixing device 18 is used during the preassembly. Then the legs of the groove 22 are bent together above the fixing device 18. The fixing device 18 therefore cannot be released by itself.For example, the groove 22 may have one or two undercuts 24.The fixing device 18 can also define the adjustment direction and, for example, prevent an adjustment in the horizontal direction. Thus, the clamping device 14 can be adjusted only upward and downward, for example, in order to thus adjust the distance between the support 12 and the clamping section 16.The support 12 and the clamping section 16 each have a rubber coating 26 with an optional corrugation 27.The rubber layer 26 of the support 12 can have an L-shaped cross-sectional area.Optional latching noses 28 are formed on the rubber reinforcements 26, which are pressed into undercut indentations 30 of the base 10 and of the clamping device 14.The fastening device is designed as an end clamp, i.e. only one module can be fastened to it.As seen in FIGS. 3 and 4, the mounting claw 20 may have a locking end 32. The latching end 32 can be pressed into a support rail at any desired position.Furthermore, the mounting claw 20 has a rotation prevention means 34 at an end region facing away from the latching end 32. For example, the anti-rotation device 34 can have a rectangular contour.The anti-rotation device 34 is guided through a, for example rectangular, cutout 36 of the base 10. Twisting is reliably prevented in this way.In FIGS. 5 to 8, on the other hand, the fastening device is designed as a central clamp, i.e. modules can be fastened on two sides opposite the fastening device 18.In this case, the groove 22 has two undercuts 24, which preferably extend over the entire length of the clamping device 14.List of reference characters10 Base 12 Support 14 Clamping device 16 Clamping section 18 Screw, fixing device 20 Mounting claw 22 Groove 24 Undercut 26 Rubber coating 27 Corrugation 28 Latching nose 30 Indentation 32 Latching end 34 Anti-rotation device 36 Cutout

Claims

Fastening device for fastening a, preferably frameless, thin-film solar and / or thin-film photovoltaic module to a support rail, having a base (10) with at least one support (12) for supporting the module, a clamping device (14) with a clamping section (16), wherein the clamping device (14) is adjustable relative to the base (10) in such a way that the module can be clamped between the support (12) and the clamping section (16), wherein the support (12) and / or the clamping section (16) has a rubber coating (26), a fixing device (18) for fixing the clamping device (14), and a mounting claw (20) which is connected or can be connected to the fixing device (18).Fastening device according to Claim 1, characterized in that the fixing device has a screw (18) or is designed as a screw (18).Fastening device according to claim 1 or 2, characterised in that the mounting claw (20) has a rotation prevention means (34).Fastening device according to claim 3, characterised in that the anti-rotation means (34) has an angular contour at least in sections.Fastening device according to claim 3 or 4, characterised in that the anti-rotation means (34) has a rectangular, preferably square, contour.Fastening device according to one of Claims 3 to 5, characterized in that the base (10) has a, preferably precisely fitting, cutout (36) for the anti-rotation device (34).Fastening device according to one of the preceding claims, characterized in that the length of the support (12) and / or of the clamping section (16) is at least 5 cm, preferably at least 7 cm.Fastening device according to one of the preceding claims, characterized in that exactly one support (12) and exactly one clamping section (16) are provided.Fastening device according to one of Claims 1 to 7, characterized in that two supports (12) and two clamping sections (16) are provided, which are arranged on opposite sides with respect to the fastening device (18).System with a fastening device according to one of the preceding claims and at least one, preferably frameless, thin-film solar and / or thin-film photovoltaic module.

Images