DE202021103070U1 - Solar module mounting system - Google Patents

Abstract

Solar module fastening system (20), having
- A base support (22) which can be fastened to a base, in particular to a roof, with a base plate (24) on which at least two base support retaining walls (28) are arranged opposite one another and extend parallel to one another, the base support retaining walls (28) each have at least one receiving groove (32) in their mutually facing inner surfaces (30) and together with the base plate (24) form a bracket support receiving means (34),
- A bracket support (36) with a holding arm (50), the end of which merges into a fastening area which can be detachably connected to the base support (22), characterized in that the fastening area has a fastening block (38) with two vertical bracket support retaining walls (40 ) for attachment to the base support retaining walls (28), wherein
- the bracket support retaining walls (40) are connected to one another via a horizontal plate (42),
- The bracket support retaining walls (40) in the fastened state form the inner surfaces (30) of the base support retaining walls (28) facing outer surfaces (44) which are at a distance from one another which is approximately a distance between the inner surfaces (30) of the base support retaining walls ( 28) corresponds to each other,
- the area between the base support retaining walls (28) forms a free space,
- The bracket support retaining walls (40) each have a tongue (46) adapted to the receiving groove (32) of the base support retaining walls (28) on their outer surfaces (44) facing the inner surfaces (30) of the retaining walls (40) in the fastened state.

Description

• - einen auf einem Untergrund, insbesondere an einem Dach befestigbaren Grundträger mit einer Grundplatte, auf der zumindest zwei einander gegenüberliegende und sich parallel zueinander erstreckende Grundträger-Haltewände angeordnet sind, wobei die Grundträger-Haltewände in ihren aufeinander zu gerichteten Innenflächen jeweils zumindest eine Aufnahmenut aufweisen und gemeinsam eine Bügelträgeraufnahme ausbilden,
• - einen Bügelträger, der einen Haltearm, der endseitig in einen Befestigungsbereich übergeht, der mit dem Grundträger lösbar verbindbar ist,

The invention relates to a solar module mounting system

• - A base support that can be fastened to a substrate, in particular a roof, with a base plate on which at least two opposing and parallel extending base support retaining walls are arranged, the base support retaining walls each having at least one receiving groove in their inner surfaces facing one another and together form a bracket support receptacle,
• - a bracket support, which has a holding arm which merges at the end into a fastening area which can be detachably connected to the base support,

Such a solar module mounting system is from EP 2 828 588 B1 known and is used to attach solar modules on a roof of a building. For this purpose, the base carrier is attached to a roof structure, for example to rafters. The bracket support detachably fastened to the base support has a fastening area with a bracket section having a plurality of arms, each arm of the bracket section being detachably connected to the base support. For this purpose, the two arms are each inserted into a receiving groove in the base support.

From the published patent application EP 2 194 335 A1 a solar module holder is known which has a bracket support releasably attachable to the base support, the bracket support having a branching area merging into two arms, the arms receiving a section of the base support for fastening between them. From the published patent application EP 2 093 524 A1 Furthermore, a solar module holder is known which engages with a free end section in a receiving groove of a basic holder and is hooked.

The known solutions thus provide that either two receiving grooves must be provided and used for the free ends of the arms or that a section of the base support must be brought between the arms. On the one hand, this has disadvantages in terms of manufacturing technology; on the other hand, there is the risk that the upwardly open receiving grooves due to their small cross section will quickly become clogged with dirt, for example, which makes it difficult to insert the free ends of the arms.

The invention is based on the object of specifying an alternative embodiment of such a solar module fastening system. This should have a simple and robust construction, be inexpensive to manufacture and, in particular, also be quick and easy to assemble.

According to the invention, this object is achieved by a solar module fastening system having the features of claim 1.

• - die Bügelträger-Haltewände über eine Horizontalplatte miteinander verbunden sind,
• - die Bügelträger-Haltewände im befestigen Zustand den Innenflächen der Grundträger-Haltewände zugewandte Außenflächen ausbilden, die einen Abstand voneinander aufweisen, der etwa einem Abstand der Innenflächen der Grundträger-Haltewände zueinander entspricht,
• - der Bereich zwischen den Grundträger-Haltewände einen Freiraum ausbildet,
• - die Bügelträger-Haltewände auf ihren im befestigen Zustand den Innenflächen der Haltewände zugewandten Außenflächen jeweils eine an die Aufnahmenut der Grundträger-Haltewände angepasste Feder aufweisen.

Accordingly, the solar module fastening system has a fastening area with a fastening block with two vertical bracket support retaining walls for fastening to the base support retaining walls, wherein

• - the bracket support retaining walls are connected to one another via a horizontal plate,
• - In the fastened state, the bracket support retaining walls form outer surfaces facing the inner surfaces of the base support retaining walls, which have a distance from one another which corresponds approximately to a distance between the inner surfaces of the base support retaining walls,
• - the area between the base support retaining walls forms a free space,
• - The bracket support retaining walls each have a tongue adapted to the receiving groove of the base support retaining walls on their outer surfaces facing the inner surfaces of the retaining walls in the fastened state.

The fastening block is therefore compact and is pushed as a whole into the free space formed between the base support retaining walls. The laterally arranged springs are introduced into the receiving groove of the base support retaining walls, whereby the bracket support is held in the vertical direction. Overall, the free space formed between the base support retaining walls is significantly larger than the grooves described in the prior art for receiving free arms. The free space can thus also be soiled, but cleaning is quick and easy, for example with a broom. In addition, due to the large cross-section, the free space or the bracket support receptacle does not become clogged with dirt as quickly.

Another advantage is that the flexural rigidity of the closed cross-section, i.e. when the fastening block is inserted, is significantly higher than in the systems according to the prior art, in particular than in systems with two upwardly open individual receiving grooves for the free ends of two arms. The solution according to the invention thus enables higher payloads, which has considerable advantages for the customer.

Another advantage is that the bracket support has no free ends that For example, they can be damaged or even break off during transport or assembly. The design of the fastening block creates an extremely robust and almost indestructible fastening element.

In an advantageous embodiment, the fastening block is essentially cuboid, that is, it has an approximately rectangular cross-section. In relation to the cross section, a horizontal plate connecting the retaining walls is located at the lower end facing the base support between the vertical bracket support retaining walls. In a particularly preferred embodiment variant, the horizontal plate also forms the springs which protrude laterally with respect to the bracket support retaining walls. The horizontal plate can also be arranged in a different position in the vertical direction than at the outer end in the fastening block. It is also conceivable that the fastening block has two or even more springs on each side, which can be introduced into a corresponding number of receiving grooves in the base support. This can also increase the stability.

A holding arm preferably protrudes laterally from the fastening block. The holding arm is preferably arranged on the area of the fastening block facing away from the base support.

The fastening block can have a further horizontal plate which, in a preferred exemplary embodiment, merges into the holding arm. Together with the lower horizontal plate and the two bracket support retaining walls, this results in a hollow body. In an alternative embodiment variant, the fastening block can also be made from a solid material, that is to say not as a hollow body.

In order to secure the bracket carrier, in particular in the vertical direction, a clamp lock can preferably be provided. In a particularly simple variant, this is formed by a screw which can be screwed into the fastening block from above through corresponding through openings in the horizontal plates in the fastening block when the bracket support is connected to the base support. For this purpose, the through openings have suitable threads. The screw is supported with its free end against the base plate of the base support and thereby causes the springs to jam in the receiving grooves of the base support in the vertical direction.

The basic carrier itself also has a very simple but robust construction. It is essentially formed by a base plate from which the two base support retaining walls extend vertically upwards. The base plate can have suitable elements for fastening to a substructure, for example openings for receiving screws. The base support can be designed differently depending on regional or national regulations or, for example, also due to the individual circumstances of different roof shapes or types, in order to ensure optimal fastening.

In a particularly advantageous embodiment variant, the support surface of the base support facing the substrate has a structure which increases the coefficient of friction; it is, for example, roughened. As an alternative or in addition, protruding spikes can also be provided which are pressed into the subsurface, in particular into a roof structure made of wood. Such thorns or corrugations also effectively prevent twisting on the rafter during assembly and also in the assembled state.

The receiving grooves in the base support retaining walls extend essentially parallel to the main plane of extent of the base plate of the base support and are not designed to be upward but to be open to the side. The lateral alignment effectively prevents the grooves from getting dirty. In a particularly advantageous embodiment variant, the base support retaining walls have a plurality of receiving grooves which extend in parallel and into which the springs protruding from the fastening block of the bracket support can be introduced. Because of the multiple receiving grooves, the height of the bracket support can be adjusted relative to the base support and in particular to the roof to which the base support is attached. This ensures that the roof covering can be encompassed by the bracket support. The solar module fastening system can also be used in a variety of ways, in particular on different types of roof structures and roof coverings.

• 1: ein Solarmodulbefestigungssystems in zusammengesetzten Zustand in Seitenansicht,
• 2: einen Bügelträger des Solarmodulbefestigungssystems aus 1 in Seitenansicht,
• 3: den Bügelträger aus 1 von oben,
• 4: einen Grundträger des Solarmodulbefestigungssystems aus 1 in perspektivischer Darstellung,
• 5: das Solarmodulbefestigungssystems aus 1 in perspektivischer Darstellung.

The invention is explained in more detail with reference to the following figures. These merely represent a preferred exemplary embodiment and are not intended to be limiting. The dimensions are not to scale, dimensions and dimensions can also vary when changed. Show it:

• 1 : a solar module fastening system in the assembled state in side view,
• 2 : a bracket support for the solar module fastening system 1 in side view,
• 3 : the bracket bracket off 1 from above,
• 4th : a base support for the solar module fastening system 1 in perspective view,
• 5 : the solar module mounting system off 1 in perspective view.

the 1 until 5 show a preferred embodiment of a solar module fastening system 20th . 1 shows the solar module mounting system 20th in the assembled state. This has a base support that can be fastened to a substrate 22nd on that in the 4th and 5 is also shown in perspective.

The basic carrier 22nd has a base plate 24 which rests on a substrate in the assembled state and is attached to it. Holes are used for fastening 26th , through the fastening means, in particular screws, can be passed.

From the base plate 24 two base support retaining walls extend parallel to one another 28 vertically upwards. The two base support retaining walls 28 close to the base plate 24 a right angle. In the inner surfaces facing each other 30th the base support retaining walls 28 are in the embodiment shown, four receiving grooves arranged one above the other 32 intended. The grooves 32 extend parallel to the main plane of extent of the base plate 24 , i.e. in the horizontal direction. The base plate 24 and the two base support retaining walls 28 together form a bracket support mount 34 the end.

The grooves arranged one above the other 32 enable the inclusion of a bracket support 36 at different heights or at different distances from the base plate 24 . This enables more flexible mounting of solar modules, for example on a roof, which is adapted to local conditions. In particular, the assembly can thereby be adapted to different roof tiles with varying shapes and dimensions.

The bracket carrier 36 is in 2 additionally in side view and in 3 shown from above. It is essential that the bracket support 36 a mounting block 38 trains that in the bracket support receptacle 34 , i.e. between the two base support retaining walls 28 , is insertable.

The mounting block 38 has two bracket support retaining walls 40 on that over a horizontal plate 42 are connected to each other.

Exterior surfaces 44 the bracket support retaining walls 40 have a distance from one another, which is a distance between the inner surfaces 30th the base support retaining walls 28 corresponds to each other, minus a distance that enables them to be nested and takes manufacturing tolerances into account

From the outside surfaces 44 the bracket support retaining walls 40 there are feathers 46 before, which are designed and arranged in such a way that they are in the receiving grooves 32 of the inner surfaces 30th the base support retaining walls 28 are insertable. 1 shows an example of springs 46 that is in the bottom one, to the base plate 24 adjacent grooves are introduced. Alternatively, the springs 46 also in receiving grooves arranged above 32 to be introduced.

In the embodiment shown, the springs close 46 on the side of the horizontal plate 42 on, so they are in the same plane as the horizontal plate 42 arranged, the horizontal plate 42 forms the feathers with their edge areas 46 the end.

It is essential that the bracket support receptacle 34 is formed by a U-shaped space between the base support retaining walls 28 trains. This free space allows the entire mounting block 38 to record.

The bracket support according to the invention shown in the figures 36 furthermore has an upper horizontal plate 48 on, which in the embodiment shown is parallel to the horizontal plate 42 extends and laterally in a holding arm 50 of the bracket support 36 transforms. The holding arm 50 is designed in the illustrated embodiment with three crankings and has a fastening element at its free end 52 for fastening a rail on which a solar module can be mounted. In the exemplary embodiment shown, the fastening element 52 has a corrugated, structured surface, and there is also an elongated hole 53 for fastening a module support rail (not shown) in the surface of the fastening element 52 intended. A fastening screw is used for fastening 55 .

The fastening of the module carrier rail to the fastening element 52 takes place from the side, which results in easier assembly. Furthermore is through the elongated hole 53 that are orthogonal to the grooves 32 extends, given a further height adjustability, whereby the position of the module support rail is also adjustable in height.

The mounting block 38 has a window seen in side view 54 on, which through the two bracket support retaining walls 40 and the horizontal plate 42 and the upper horizontal plate 48 is limited. The mounting block 38 is thus designed as a hollow body in the variant shown.

1 also shows a clamping device that is secured by a screw 56 is formed, which is through openings 58 in the horizontal plates 42 , 48 extends. The through openings 58 assign each one with the screw 56 corresponding thread so that the screw 56 with its free end against the base plate 24 can be screwed and supported there. Through the screw 56 the springs jam 46 in the vertical direction in the grooves 32 .

The embodiment shown has many advantages, but the invention is not limited to this. In particular, further technical features (not shown) from the description and the claims can be combined with one another and with the variants shown in any desired manner.

List of reference symbols

20th

Solar module mounting system

22nd

Basic carrier

24

Base plate

26th

Holes

28

Base support retaining walls

30th

Inner surface

32

Grooves

34

Bracket support

36

Bracket carrier

38

Mounting block

40

Bracket support retaining walls

42

Horizontal plate

44

Outer surfaces of bracket support retaining walls

46

feathers

48

upper horizontal plate

50

Holding arm

52

Fastener

53

Long hole

54

window

55

Fastening screw

56

screw

58

Through openings

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 2828588 B1 [0002]
• EP 2194335 A1 [0003]
• EP 2093524 A1 [0003]

Claims (10)

Solar module fastening system (20), comprising - a base carrier (22) which can be fastened to a substrate, in particular to a roof, with a base plate (24) on which at least two mutually opposite and parallel extending base carrier retaining walls (28) are arranged, the Base support retaining walls (28) each have at least one receiving groove (32) in their mutually facing inner surfaces (30) and together with the base plate (24) form a bracket support receptacle (34), - a bracket support (36) with a retaining arm (50) , the end of which merges into a fastening area which can be detachably connected to the base support (22), characterized in that the fastening area has a fastening block (38) with two vertical bracket support retaining walls (40) for fastening to the base support retaining walls (28) , wherein - the bracket support retaining walls (40) are connected to one another via a horizontal plate (42), - the bracket support retaining walls ( - the area between the base support retaining walls (28) forms a free space, - the bracket support retaining walls (40) on their outer surfaces (44) facing the inner surfaces (30) of the retaining walls (40) in the fastened state each have one on the receiving groove (32) the base support retaining walls (28) have adapted springs (46). Solar module fastening system (20) according to Claim 1 , characterized in that the base support retaining walls (28) have several parallel receiving grooves which have different distances from the plane of the base plate (24). Solar module fastening system (20) according to Claim 1 or Claim 2 , characterized in that the springs (46) of the outer surfaces (44) of the bracket support retaining walls (40) are arranged at the end of the fastening block (38) facing the base plate (24) when the bracket support (36) is fastened. Solar module fastening system (20) according to one of the Claims 1 until 3 , characterized in that the horizontal plate (42) extends in the same plane as the springs (46). Solar module fastening system (20) according to one of the Claims 1 until 4th , characterized in that the holding arm (50) of the bracket support (36) extends laterally away from one of the bracket support retaining walls (40). Solar module fastening system (20) according to one of the Claims 1 until 5 , characterized in that the horizontal plate (42) has a through opening (58). Solar module fastening system (20) according to Claim 6 , characterized in that the fastening block (38) is designed as a hollow body with a further upper horizontal plate (48) which also has a through opening (58). Solar module fastening system (20) according to Claim 6 or Claim 7 , characterized by a clamping device which is formed by threads in the through openings (58) and a screw (56) screwed in and supported on the base plate (24) of the base support (22). Solar module fastening system (20) according to one of the Claims 1 until 8th , characterized in that the fastening block (38) has an approximately cuboid basic shape with springs (46) protruding therefrom. Solar module fastening system (20) according to one of the Claims 1 until 3 , characterized in that the fastening block (38) has an approximately cuboid basic shape with springs (46) protruding therefrom and is made of solid material.

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