ES1068808U - Installation of biaxial rotating support for solar collectors (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Installation of support (10) rotating around two axes for at least one surface of collectors, especially for one or more photovoltaic elements (30), with a rotating column (20), comprising a rotating installation for housing a support frame (22) for at least one surface of collectors, characterized in that the rotating column (22) has a thickening or a reinforcement at least in sections. (Machine-translation by Google Translate, not legally binding)

Description

Biaxial rotating support installation for solar collectors

The present invention relates to a biaxial rotating support installation for solar collectors with the features of the preamble of the claim Independent.

Heat collectors, especially solar collectors are frequently installed on rooftops of South-facing houses. Through this kind of ceiling installation is guaranteed to be used Optimally the energy of solar radiation. If they should be used solar collectors, without a building roof being available corresponding - for example on a meadow or on a roof flat- it is convenient to arrange them in the same way inclined and aligned south. A support installation of this type in form of an amount for solar collectors is represented by example, in document DE 10 2005 015 346 A1. This installation of support for a solar installation constituted as a roof provides a support installation arranged as a belt between solar modules and two or more supports arranged inclined with with respect to the horizontal, which connects the solar modules with the brackets The support installation consists of a profile of sheet steel and has a profile in the cross section similar to a hat with a cap and two ribs. The ribs They extend from the solar modules to the supports.

The photovoltaic elements for conversion of solar radiation energy in electric energy present a relatively limited performance. For the achievement of a maximum energy efficiency it is necessary to align the surfaces as perpendicularly as possible with respect to the direction of the solar radiation. In order to adapt the voltaic elements to the variable state of the sun, rotating supports are known, the called followers, who are able to carry the collector surfaces to the desired position. This applies also for photovoltaic concentration modules.

A priority objective of the invention is seen in make available a structure support construction simple and stable, rotating biaxially, for collectors solar, which can be mounted quickly and economically.

This objective of the invention is achieved with the object of the independent claim. The characteristics of Advantageous developments of the invention are deduced from the dependent claims.

To compensate for the maximum load torque in the follower flange plate, the mast is welded from two sheets of different thickness. This sheet does not extend over the entire height of the mast, but only up to the height, which Need for stability reasons. In this way, with the same stability, material quantities and costs are reduced. From according to a preferred embodiment, the mast is consisting of two tubes coupled to each other, which have a different diameter of the tube. The inner tube next to the flange it does not extend over the entire length of the mast, but is disposed only in the area of high bending stresses.

In principle, the follower is constituted by A mast and a so-called solar awning. On the solar awning they are mounted photovoltaic panels or thin film panels. This solar awning Follow the position daily using two electric motors of the sun from the east to the west, following the position of the sun according to the time of day and the time of the year. In this way, maximum utilization of photovoltaic modules is ensured. To this end, an approximately right angle of the PV surface with respect to the sun.

According to another embodiment, the solar awning follows the position of the sun also by means of a single electric motor. This embodiment also contains a manual adjustment lever. This manually adjusts one Optimally solar awning according to the time of year.

The manufacturing of the components is done in the metal structures production workshop, so that the Extensive work assembly can be performed on the follower. By therefore, it is not necessary to perform the expensive work stages of time in the free field during final assembly. Through the  Selective construction essentially facilitates assembly in the field and additional protection against breakage of the bolted joints of the bearings. The awning stand solar is formed of profiled steel sheets, which receive sections conical This provision has been revealed as especially advantageous for the suspension of the solar awning.

By means of the V-shaped fork, essentially simplifies assembly, since the bearing is You can easily find it during assembly. Some chamfers of input are arranged on the fork, displaced 90 degrees, which biaxially pre-center the solar awning. A bolt and / or a bushing is inserted in the solar awning, which form the bearing with the fork head. Through the construction you get a free game accommodation, which you receive, through bushes or brass discs, a good property of friction bearing. Alternatively, you can also use an A-shaped fork, which enables the Same simplified assembly.

The upper bearing has a bushing brass. According to an alternative embodiment, Use a plastic bushing stably. As soon as the solar seal is inserted in the V guide, the solar seal is fixed on X-direction and Y-direction and you can barely get out of the accommodation without high performances of external forces. For fall insurance in the case of extreme wind loads, it is coupled laterally on the jester of bearing a retention plate on the bolt and ensures free of tension, for example with screws. The bearing bolt has sufficient play with respect to the retention plate, so that no additional frictional forces occur. The sheet of retention can be modified according to another form of realization at the request of the client, so that the bearing is provided with a long lasting lubrication during the useful life.

The screwed connection of the panel on the awning Solar tracker can be provided as follows. He follower awning is generally made of tubes square or C-profiles, to simplify assembly. Since most of the time the assembly is done in the free field, in the square tubes or in the C-profiles are mounted rivet nuts or a continuous drill-shaped thread, which is they introduce pressure flush or with an appendage in the profile. This is done under ideal operating conditions in the Manufacturer's workshop In this way, the fixing screw, which secure the panels on a retention profile, receive the bearing opposite (threaded place). It can be screwed from above without against support for. Self-braking screws or nuts are used to prevent threaded joint release. The threaded joint can be made, therefore, in such a way that retention is not necessary opposite or securing with the help of screw nuts.

Between the square tube or the C profile and the panel is placed a noble steel disk, which offers a sufficient distance between the materials (Alu and zinc). This way, a chemical reaction between the zinc surface is avoided of the tracker and the aluminum edge of the panel.

Other features, objectives and advantages of the present invention is now deduced from the description detailed below of a preferred embodiment of the invention, which serves as a non-limiting example and refers to The attached drawings. The same components present in this case, in principle, the same reference signs and not They explain, in part, several times.

Figures 1a / b show, respectively, a rotating follower around two axes.

Figure 2a / b show, respectively, a detail view of a column.

Figure 3a / b shows a detailed view of a top column bearing housing without sheet metal retention (figure 3a) and with retention plate (figure 3b).

Figure 4 shows the solar awning inserted in The housing support.

Figure 5 shows the solar awning secured with a retention plate.

Figure 6 shows a representation in section of the collectors connected to the solar awning and the fixing the collectors with the solar awning.

Figures 7, 8, 9 show different views in wire model representations and

Figure 10 shows a side representation of the rotary follower around two axes.

In principle, the follower 10 is constituted by a mast 20 and a so-called solar awning 22. On the solar awning photovoltaic panels or thin layer panels 30 are mounted. This solar awning 22 follows the position of the sun, according to the needs, by means of two electric motors, from the East to the West, that is, an alignment is carried out according to the position of the sun according to the time of day and the time of year. This way, maximum utilization of the modules is ensured photovoltaic 30. For this purpose, an angle is required approximately Straight from the PV surface with respect to the sun. The manufacture of The components are made in the production workshop of metal structures, so that intensive assembly of Work can be done on the follower. Therefore it is not necessary to carry out the costly work stages of time in the free field during final assembly. Through construction selective field mounting is essentially facilitated and can offer additional protection against joint breakage bolted to the bearings. The support 40 for the solar awning is shape of profiled steel sheets, which receive sections conical

To compensate for the maximum load torque in the follower flange plate (figure 1), the mast 20 is welded from two tubes (sheets) of different thickness (figure 2a / b). The reinforcement tube 50 does not pass over the entire height of the mast, but only up to the height, which is needed for reasons of stability. In this way, the material quantities are reduced and costs with the same stability.

As clearly depicted in figures 1a and 1b, solar awning 22 is housed outside the center in the mast 20. This accommodation outside the center is necessary to maintain the smallest possible alternating load on the motor with ratios normal of the wind. In normal operation, the engine is requested for traction for the necessary adjustment according to the time of the year. In this way, you can take care of the drive and prolong the shelf life. According to another form of embodiment, the solar seal 22 may also be housed in the mast center 20.

Through the V-shaped fork (figure 3) assembly is essentially simplified, since the bearing 40 can be easily found during assembly. Some chamfers input are arranged on the fork 90 degrees scrollable, that pre-center the solar awning 22 at right angles. A bolt 42 or a bushing is inserted in the solar awning, which form the bearing 40 with the fork head (figures 4 and 5). Through the construction a support housing is achieved free of play, which receives a good bearing property of friction on bushings or brass discs.

The upper bearing 40 has a bushing of brass. As soon as the solar seal 22 is inserted into the guide in V, the solar awning 22 is fixed in the X-direction and in the Y-direction and can barely be taken out of accommodation without high performances of external forces. For him fall insurance in the case of extreme wind loads, it laterally engages a bearing plate 42 on the bearing pin 42 retainer 44 on bolt 42 and bolts tension free (figure 5). The bearing bolt 42 has sufficient play with with respect to retaining plate 44, so that they do not occur additional friction forces. In addition, it is possible to integrate a lubrication during the lifetime.

The screwed connection of panels 30 on the solar awning 22 of the follower (figure 6) may be provided in the Following way. The awning 22 of the follower is constituted, in general, by square tubes or profiles in C 60, to simplify the  mounting. Since most of the time the assembly is done in the free field, in square tubes or in profiles in C 60 are mounted rivet nuts 62 or a thread in the form of continuous drill, which are flush-pressed or with appendix in the profile. This is done under ideal conditions. operating in the manufacturer's workshop. In this way, the fixing screw 64, which secures the panels on a profile of retention 66, receives the opposite bearing (threaded place). It can screw from above without counter support. Screws are used or self-braking nuts to prevent joint release threaded Between the square tube or the C 60 profile and the panels 30 an intermediate layer of noble steel 68 is placed, which It offers a sufficient distance between the materials (Alu and zinc). In this way, a chemical reaction between the surface is avoided zinc tracker 10 and aluminum edge of panel 30.

The invention is not limited to the examples of previous realization. Instead, a plurality is conceivable of variants and modifications, which use the idea according to the invention and therefore fall the same way in the field of protection.

List of reference signs

10

Follower

twenty

Mast / Swivel Column

22

Solar awning

30

Photovoltaic panel

40

Support

42

Bolt

44

Retaining plate

fifty

Reinforcement tube

60

Square tube

62

Rivet nut

64

Fixing screw

66

Retention profile

68

Intermediate layer of noble steel.

Claims (17)

1. Installation of rotating support (10) around two axes for at least one collector surface, especially for one or several photovoltaic elements (30), with a rotating column (20), comprising a rotating installation for housing a support frame (22) for at least one collector surface, characterized in that the rotating column (22) has at least a thickening or reinforcement in sections. 2. Support installation according to claim 1, characterized in that the column (20) has a second reinforcement tube (50) with a smaller diameter of the tube, which is welded together with the column (20). 3. Support installation according to one of the preceding claims, characterized in that the inner reinforcement tube (50) is arranged in an area of high bending stresses. 4. Support installation according to claim 2, characterized in that the reinforcement tube (50) that is close to the flange is arranged in an area of high bending stresses. 5. Support installation according to one of the preceding claims, characterized in that the support installation (10) comprises a solar awning (22) rotating around two axes. 6. Support installation according to one of the preceding claims, characterized in that one or more collector surfaces (30) are mounted on the solar awning (22). 7. Support installation according to one of the preceding claims, characterized in that the solar awning (22) can follow the position of the sun by means of at least two electric motors. 8. Support installation according to one of the preceding claims, characterized in that the solar awning (22) can follow the position of the sun by means of an electric motor and a manual adjustment lever. 9. Support installation according to one of the preceding claims, characterized in that the column (20) and / or the solar awning (22) are formed by pre-assembled components. 10. Support installation according to one of the preceding claims, characterized in that the column (20) has an upper support (40) for housing the solar awning (22). 11. Support installation according to one of the preceding claims, characterized in that the upper support (40) has conical sections with a V-shaped or A-shaped fork. 12. Support installation according to one of the preceding claims, characterized in that the fork has input chamfers for biaxial pre-centering of the solar awning (22) during assembly. 13. Support installation according to one of the preceding claims, characterized in that a bolt (42) or a bushing is inserted in the solar awning (22), which forms the bearing with the fork head. 14. Support installation according to one of the preceding claims, characterized in that a retaining plate (44) is inserted laterally on the support bolt (42) on the bolt (42) and is tension-free screwed. 15. Support installation according to one of the preceding claims, characterized in that the solar awning (22) is housed outside the center in the rotating column (20). 16. Support installation according to one of the preceding claims, characterized in that the solar awning has riveted nuts (62) or threaded holes formed as a continuous drill for the screwed connection of the photovoltaic elements (30). 17. Support installation according to one of the preceding claims, characterized in that an intermediate layer of noble steel (68) is located between the square tube or C-profile (60) and the photovoltaic elements (30).