DE202012006839U1 - Fixing clamp for solar modules - Google Patents

Abstract

Clamp for fastening an adjacent solar module on a support, with a support element (2) which can be placed on the support, a tightening means (3) for controlled tightening of the clamp relative to the support and a latching element (7) which can be brought into engagement with the support, in particular with is connected to the tightening means (3), characterized in that the clamp comprises a clamp arm (4) which is adjustable and / or displaceable in the direction of the carrier.

Description

The invention relates to a mounting clamp for solar modules in particular for one-sided attachment of an adjacent solar module.

The installation of solar modules on roofs of buildings in Germany is usually done with a slope of 10 ° or 20 °. For this purpose, the solar modules can be placed on correspondingly formed front and rear supports, such as module supports, which in turn are fastened in floor rails. Fixing clamps are used to fix the solar modules to the supports.

Fastening clamps are known with centrally arranged tightening means such as clamping screws, which allow tightening of the clamp relative to a support on which the mounting clamp is locked. Since these are usually mounting clamps with a symmetrical design, which provide clamping surfaces for adjacent solar modules on both sides, they can not be used in particular for the one-sided attachment of an adjacent solar module, for. For example, they dodge to the side away from the panel. Furthermore, there are different thick modules, so different terminals must be kept ready or by tedious screws on the clamping screws the desired height must be set.

In addition, it is problematic with fastening clamps to obtain a secure mechanical fastening of the solar module. Due to the wind load acting on the solar modules in the form of pressure and suction effects, the mounting clamps must be designed to suit the load.

It is therefore an object of the invention to provide an improved mounting clamp of the type described above, which in particular allows a reliable mechanical fastening and is further adapted to assembly, to allow a simplified assembly.

A mounting clamp comprises for achieving the object, the features of the main claim. Advantageous embodiments are the subject of the dependent claims.

The adjustable and / or displaceable clamping arm for the solar module makes it possible in the first place to use the terminal for solar modules with different thicknesses. Due to the displaceability and / or adjustability of the clamping arm, a rapid, coarse adjustment of the clamping arm can be made to a solar module to be mounted during assembly. Then the clamp can be tightened by means of the tightening means in a controlled manner for a secure fixation on the wearer. It is thus possible to use the terminal for fastening of different solar modules. In addition, the adjustable and / or displaceable clamping arm simplifies the mounting of the clamp on the carrier. The possibility of coarse adjustment by means of the adjustable and / or displaceable clamping arm can thus reduce the required assembly work.

In order to secure the adjustable and / or displaceable clamping arm in a set position against further movement, in one embodiment, a locking means, in particular a locking toothing on the clamping arm is provided which blocks movement of the clamping arm at least in one direction. A latching toothing preferably has a sawtooth shape, wherein the latching toothing is preferably aligned so that a release of the clamping arm so a movement perpendicular away from the carrier, is prevented. If such a clamping arm has been roughly adjusted, the locking means prevents, in particular in the form of a locking toothing, a release of this setting. When moving the clamping arm while overcoming the locking means is thus automatically a coarse adjustment with fixation. Then the clamp must be tightened by means of the tightening means only in a controlled manner relative to the carrier, which is only necessary to tighten over a few threads. The locking toothing is preferably provided on a side surface of the clamping arm. The support element preferably has on one side or wall a correspondingly configured planar locking toothing, so that the latching toothing of the clamping arm can cooperate with the latching toothing of the support element and in an improved manner a movement of the clamping arm can be locked. The latching toothing extends along the adjustment path of the clamping arm.

In one embodiment, the clamping arm is arranged on one side of the support element, in particular in a guide opening. The guide opening preferably has a locking toothing on an inner wall, which can be brought into engagement with the latching toothing of the clamping arm.

Clamping arm and / or support element are preferably formed as a profile. The cross section of the profile remains essentially the same over the entire terminal. The clamping arm may for example have a T-shaped profile. When support member, it is preferable to provide a U-shaped profile that is aligned with the open profile side to the carrier out to achieve a direct application of force into the carrier, such that the Support element can rest against rotation on the support. Rotational safety here means that when tightening the clamp with resting on the solar panel clamping arm, the resulting torques are intercepted to prevent the clamp away from the module. Furthermore, if a guide opening for the clamping arm is present, it can preferably be formed on one side of the U-profile. One side of the U-profile then has a guide opening, which opens to the clamping arm. The design as a profile shape allows a compact, stress-appropriate terminal, which can be prepared in an advantageous manner from a profile material. The guide opening is preferably slit-like and extends in the same direction as the clamping screw and the locking teeth and perpendicular to the solar module to be fastened. Führungsdurchbruch and clamping arm are also designed to rotate in the sense of the above definition to each other. In order to realize a simple anchoring of the clamp on the carrier, the latching element preferably has a pivotable partial area, in particular at the distal end of the latching element. The pivotable portion may have one or more detents for a locking of the locking element in the carrier. The latching element may for example be designed as a hollow profile or sleeve which is slotted at the distal end or has a corresponding opening. In this way, it is possible to secure the locking element for mounting the clamp in a simple manner in the carrier and then to allow the tightening means a controlled tightening of the clamp relative to the carrier.

If the clamp is fastened to the carrier by means of a latching element, in one embodiment a locking element is provided for locking the latching element, in such a way that unlatching of the latching element is prevented upon actuation of the latching element. This ensures improved, that a clamped to the carrier terminal is not released automatically or by external stresses.

A further improvement is to connect the locking element on the tightening means, so that an actuation of the tightening means causes a locking and / or a controlled tightening of the clamp relative to the carrier. Preferably, the locking element is configured so that upon actuation of the tightening means initially a locking of the locking means is effected and then via a tilting with the locking element, in particular the locking lugs, a tightening of the terminal takes place. This makes it possible to accomplish the locking of the locking element and the controlled tightening of the terminal by the tightening means.

It is also advantageous to form the support element for a displaceable reception of the latching element and / or the locking element. For this purpose, the locking element is preferably guided in the support element, so that the forces when tightening the clamp on the support member can be transferred directly to the carrier.

In one embodiment, the support element on the lower contact surface, which rests on the carrier in the mounted state of the clamp, on a sealing device. The sealing device may comprise one or more sealing grooves. In the seal groove, an elastic sealant such as a seal rubber or a plastic band may be provided. As a result, the support element in connection with the support in the region of the contact surface is protected against penetration, moisture and dirt. Alternatively or additionally, the support element on the lower contact surface on one or more spacers. Preferably, the spacer is made of plastic.

It is also advantageous to provide one or more webs on the lower contact surface of the support element. The webs are preferably designed for easy joining of the clamp to the carrier as excellent edges, which are brought into contact with the carrier in a corresponding groove or recess on the carrier during assembly of the clamp. In this way, a secure and reliable positioning of the terminal during assembly is possible. The webs also lead to an improved force introduction into the carrier, in particular of transverse forces and moments, which can lead to a twisting of the clamp on the carrier.

The invention will be explained in more detail below with reference to FIGS. Show it:

1 a front view of a clamp

2 a side view of the terminal according to 1

3 a front view of another embodiment of the terminal

4 a front view of another embodiment of the terminal

the clamp 1 according to 1 includes a support element 2 , which can be placed on a support for fixing a solar module. The support element 2 may be formed as a U-profile, at the closed profile side center a bore for a tightening means such as a clamping screw 3 is provided. On the open profile side, which is placed on the support, can also be spacer 11 be provided for example of plastic. For attachment of an adjacent solar module, the support element 2 prefers a leadership breakthrough on one side 9 in which an adjustable and / or sliding clamp arm 4 to be led. The leadership breakthrough 9 is preferably over an entire wall side of the support element 2 intended. The clamp arm 4 may be formed as a T-profile, wherein the angled portion of the clamping arm 4 a clamping surface 5 has, which is brought into abutment with the solar module to be fastened. For a secure adjustability of the clamping arm 4 to reach, the clamping arm points 4 preferably a locking means, in particular in the form of a locking toothing 6 on. The locking teeth 6 is preferred in the region of the clamping arm 4 provided in the leadership breakthrough 9 of the support element 2 to be led. The wall area of the guide opening that comes into contact with it 9 preferably has a corresponding locking teeth 6 on. The latching toothing, for example, with a sawtooth shape is preferably oriented such that a release of the clamping arm 4 So from the leadership breakthrough 9 out, through the ratchet teeth 6 is locked. When mounting the clamp 1 can by means of the clamping arm 4 First, make a rough adjustment to the present solar module, with the help of the locking teeth 6 secured against loosening. Then the clamp can be tightened with the help of tightening means like a tightening screw 3 be tightened in a controlled manner.

The constructive details of anchoring of the clamp 1 in a carrier are in 2 clarifies the one side view (D) of the clamp 1 according to 1 shows. The locking element 7 preferably has a pivotable portion at the distal lower end. For this purpose, the locking element 7 be designed as a hollow sleeve or profile, which is also slotted for a Verschwanken or openings. For latching with the carrier are preferably locking lugs 10 provided when putting the clamp 1 on a carrier with corresponding recesses on the carrier engage. To release the locking connection between terminal 1 and to reliably prevent carriers, is preferably a locking element 8th for locking the locking element 7 intended. The locking element 8th can be inside the sleeve or the profile of the locking element 7 be guided. Upon actuation of the locking element 8th This can then in the area between the locking lugs 10 be introduced to pivot the detents 10 to prevent. It is also preferred, the locking element 8th with the tightening means such as a clamping screw 3 connect to. The locking element 8th is then preferred as a driver for the locking element 7 educated. When tightening the clamping screw 3 So initially a locking of the locking element 7 in particular the locking lugs 10 causes. Subsequently, the locking means tilted 8th with the locking lugs 10 , so that by pressing the tightening means 3 a controlled tightening of the clamp relative to the carrier takes place.

In a further embodiment of the clamp 1 according to 3 is at the lower contact surface 16 of the support element 2 a sealing device in the form of a sealing groove 12 and a sealing element 13 intended. The sealing element 13 is preferably made of an elastic material such as a rubber seal. The sealing device thus protects against penetration of moisture and dirt in the area of the lower contact surface 16 so the clamp 1 is better protected against weather-related influences.

The thread 14 the clamping screw 3 can in the locking element 7 and / or in the locking element 8th bolted to allow a controlled tightening of these components. The locking element 7 is preferably performed in the support element, for example in the U-shaped profile. This puts a direct and stress-oriented power line in the terminal 1 for sure.

In a further embodiment of the clamp 1 according to 4 are at the lower contact surface 16 of the support element 2 one or more bars 15 provided, which are designed as protruding edges. The bridges 15 can along the entire side of a support element 2 be provided. The carrier preferably has corresponding recesses into which the webs 15 can intervene in the assembly. This has the advantage that the assembly of the clamp 1 is simplified by ensuring reliable alignment and positioning of the clamp 1 is enabled on the carrier. Furthermore, the bridges provide 15 for improved torsional safety of the terminal 1 by absorbing higher lateral forces and moments.

LIST OF REFERENCE NUMBERS

1

clamp

2

support element

3

clamping screw

4

clamping arm

5

clamping surface

6

locking teeth

7

locking element

8th

locking element

9

Management breakthrough

10

locking lug

11

spacer

12

seal groove

13

sealing element

14

Thread of 3

15

web

16

Bearing surface of 2

Claims (11)

Clamp for fixing an adjacent solar module on a support, with a supporting element which can be placed on the support ( 2 ), a suit ( 3 ) for controlled tightening of the clamp relative to the carrier and a latching element engageable with the carrier ( 7 ), in particular with the suit ( 3 ), characterized in that the clamp a adjustable in the direction of the carrier and / or displaceable clamping arm ( 4 ). Clamp according to the preceding claim, characterized in that the adjustable and / or displaceable clamping arm ( 4 ) a latching means, in particular a latching toothing ( 6 ) which blocks movement of the clamp arm at least in a direction away from the carrier. Clamp according to the preceding claim, characterized in that the clamp is designed such that the support member can be secured against rotation on the carrier and / or the clamping arm is guided on the support element in a rotationally secure manner. Clamp according to one of the preceding claims, characterized in that the clamping arm ( 4 ) and / or the support element ( 2 ) is formed as a profile / are, preferably such that the cross section over the entire length of the terminal ( 1 ) remains essentially the same. Clamp according to one of the preceding claims, characterized in that the clamping arm ( 4 ) on one side of the support element ( 2 ) especially in a leadership breakthrough ( 9 ) of the support element ( 2 ) is arranged. Clamp according to one of the preceding claims, characterized in that the latching element ( 7 ) a pivotable portion, in particular in the form of locking lugs ( 10 ) provided engageable with a carrier. Clamp according to one of the preceding claims, characterized by a locking element ( 8th ) for the locking element ( 7 ), which preferably in the locking element ( 7 ) is integrated. Clamp according to one of the preceding claims, characterized in that the locking element ( 8th ) on suiting means ( 3 ) is connected, preferably such that the locking element ( 7 ) can be locked upon actuation of the tightening means and / or for tightening the clamp ( 1 ) is taken. Clamp according to one of the preceding claims, characterized in that the support element ( 2 ) for a displaceable reception of the locking element ( 7 ) and / or locking element ( 8th ) is trained. Clamp according to one of the preceding claims, characterized in that the support element ( 2 ) at the lower contact surface a sealing device and / or one or more spacers ( 11 ). Clamp according to one of the preceding claims, characterized in that the support element ( 2 ) at the lower contact surface one or more webs ( 15 ).

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