DE212021000313U1 - Purlin and bracket for solar tracking - Google Patents

Abstract

Purlin mounted on a photovoltaic main beam and used to mount a photovoltaic panel, characterized in that it comprises:
two trapezoidal side plate sections arranged opposite to each other;
a horizontal plate connecting portion, upper bases of the two trapezoidal side plate portions being connected to each other by the horizontal plate connecting portion and located on a side facing the photovoltaic main frame;
two inclined plate connecting portions, corresponding legs of the two trapezoidal side plate portions being connected to each other by the two inclined plate connecting portions, respectively;
two mounting portions respectively connected to bottom bases of the two trapezoidal side plate portions and extending along an arrangement direction of the photovoltaic panel to mount the photovoltaic panel.

Description

technical field

The present invention relates to the technical field of purlins for mounting photovoltaic assemblies, in particular to a purlin and a bracket for solar tracking.

State of the art

At present, photovoltaic power generation has become a trend and is widely used in various places. Photovoltaic power generation is based on the principle of the photovoltaic effect, which converts solar energy directly into electrical energy. The photovoltaic power generation system mainly consists of three parts, namely a photovoltaic assembly, a controller and an inverter, whether it is used alone or connected to the grid to generate electricity. In order to ensure that the photovoltaic assembly maintains a comparatively high efficiency of power generation, photovoltaic mounts for tracking are being developed. The photovoltaic assembly is mounted on a main support by purlins, the main support driving the photovoltaic assembly through the purlins to rotate with the movement of the sun.

Most of the purlins on the photovoltaic brackets on the market adopt Ω-shaped or C-shaped structure to ensure the strength of the purlins. In practical applications, however, the number of purlins used is very large. And the load requirements for individual sections of the purlin are different. After a stress analysis, it was found that the purlin is predominantly stressed in its area near the main shaft and is less stressed at its outermost edge. The conventional purlin with a simple structure does not take into account the different load requirements on each section of the purlin, which wastes materials and causes excessive costs.

Therefore, those of ordinary skill in the art always expect to solve the following problem: to design a purlin product that reduces the purlin manufacturing cost and the material cost on the premise that each portion of the purlin product can accurately meet the differentiated load requirements in actual use.

Disclosure of Invention

The object of the present invention is to provide a purlin and a solar tracking bracket which can meet the differentiated load requirements of purlins in actual use and can reduce purlin manufacturing cost and material cost.

• Eine Pfette, die an einem Photovoltaik-Hauptträger montiert ist und zur Montage einer Photovoltaikplatte verwendet ist, wobei die Pfette aufweist:
  • zwei trapezförmige Seitenplattenabschnitte, die einander gegenüberliegend angeordnet sind;
  • einen horizontalen Plattenverbindungsabschnitt, wobei obere Grundseiten der zwei trapezförmigen Seitenplattenabschnitte durch den horizontalen Plattenverbindungsabschnitt miteinander verbunden sind und sich auf einer dem Photovoltaik-Hauptträger zugewandten Seite befinden;
  • zwei geneigte Plattenverbindungsabschnitte, wobei entsprechende Schenkel der zwei trapezförmigen Seitenplattenabschnitte jeweils durch die zwei geneigten Plattenverbindungsabschnitte miteinander verbunden sind;
  • zwei Montageabschnitte, die jeweils mit unteren Grundseiten der zwei trapezförmigen Seitenplattenabschnitte verbunden sind und sich entlang einer Anordnungsrichtung der Photovoltaikplatte erstrecken, um die Photovoltaikplatte zu montieren.

The present invention proposes the following technical solutions:

• A purlin mounted to a photovoltaic backbone and used to mount a photovoltaic panel, the purlin comprising:
  • two trapezoidal side plate sections arranged opposite to each other;
  • a horizontal plate connecting portion, upper bases of the two trapezoidal side plate portions being connected to each other by the horizontal plate connecting portion and located on a side facing the photovoltaic main frame;
  • two inclined plate connecting portions, corresponding legs of the two trapezoidal side plate portions being connected to each other by the two inclined plate connecting portions, respectively;
  • two mounting portions respectively connected to bottom bases of the two trapezoidal side plate portions and extending along an arrangement direction of the photovoltaic panel to mount the photovoltaic panel.

The purlin structure in the present solution can maintain the structure of the central portion of the conventional grooved steel purlin, reduce the depth of the groove near both ends, and greatly reduce the purlin material used and the cost in meeting the load requirements of purlins.

Provision is also advantageously made for the horizontal plate connection section to be provided with two first mounting holes.

In the present solution, the first mounting hole is provided, whereby the horizontal panel connecting portion can be connected to the main beam by fitting a connecting part to a mounting hole.

Provision is also advantageously made for the mounting section to be provided with at least one second mounting hole.

In the present solution, the second mounting hole is provided, as a result of which a photovoltaic assembly can be mounted on the mounting section.

It is further advantageously provided that two ends of the horizontal plate connection section are each connected to the two inclined plate connection sections.

In the present solution, the horizontal panel connecting portion is connected to the inclined panel connecting portions to form an integral structure, thereby increasing the overall strength and improving the load-bearing capacity.

Provision is also advantageously made for the purlin to be a one-piece stamped part.

The present solution uses a one-piece stamping that is convenient to manufacture and has a stable structure.

Provision is also advantageously made for the two trapezoidal side panel sections to be arranged parallel to one another, with the two trapezoidal side panel sections running perpendicular to the horizontal panel connection section and the two inclined panel connection sections.

In the present solution, the individual components are arranged perpendicularly to each other to further increase the stability of the structure and improve the load-bearing capacity of each part.

• mehrere Säulen, einen Photovoltaik-Hauptträger, eine vorstehend beschriebene Pfette und einen Photovoltaikbaugruppe-Körper;
• wobei der Photovoltaik-Hauptträger an Oberteilen der mehreren Säulen montiert ist, wobei der Photovoltaikbaugruppe-Körper durch die Pfette mit dem Photovoltaik-Hauptträger verbunden ist.

A solar tracking mount, comprising:

• a plurality of pillars, a photovoltaic main beam, a purlin described above, and a photovoltaic assembly body;
• wherein the photovoltaic mainframe is mounted on tops of the plurality of columns, wherein the photovoltaic assembly body is connected to the photovoltaic mainframe through the purlin.

In the present solution, the photovoltaic assembly body is connected to the photovoltaic main beam through the purlin, which can increase the overall stability of the photovoltaic assembly and ensure the continuous and stable power generation of the photovoltaic assembly.

It is further advantageously provided that an upper end of the photovoltaic main carrier is connected perpendicularly to the horizontal plate connection section, with a U-shaped bracket being firmly connected to the horizontal plate connection section in order to clamp the photovoltaic main carrier in between, the mounting section being fixed with a Framing of the photovoltaic assembly body is connected.

In the present solution, the photovoltaic assembly is firmly mounted and used stably.

Provision is also advantageously made for the U-shaped bracket to be a U-shaped bolt.

In the present solution, a U-shaped bolt is provided, which can be fitted directly to a nut for fastening, which is easy to assemble and has a stable structure.

1. 1. Bei der vorliegenden Lösung werden zwei trapezförmigen Seitenplattenabschnitte durch den horizontalen Plattenverbindungsabschnitt und die geneigten Plattenverbindungsabschnitte verbunden sind, um eine Struktur zu bilden, deren Mittelabschnitt eine rillenförmige Konstruktion aus Stahl darstellt und bei der die Tiefe der Rille zu beiden Enden hin allmählich abnimmt, wodurch die hohen Belastungsanforderungen an den Mittelabschnitt und die niedrigen Belastungsanforderungen an beide Seitenteile erfüllt werden können, so dass das verwendete Material gespart wird.
2. 2. Bei der vorliegenden Lösung wird ein einstückiges Stanzformteil verwendet, das bequem zu verarbeiten und herzustellen ist.
3. 3. Bei der vorliegenden Lösung sind an dem horizontalen Plattenverbindungsabschnit und den Montageabschnitten jeweils ein Montageloch vorgesehen, wodurch das Montageverfahren flexibel ist.

The present solution has at least one of the following positive effects

1. 1. In the present solution, two trapezoidal side plate sections are connected by the horizontal plate connection section and the inclined plate connection sections to form a structure, the middle section of which is a groove-shaped structure made of steel and the depth of the groove gradually decreases toward both ends, thereby the high load requirements of the middle section and the low load requirements of both side parts can be met, so that the material used is saved.
2. 2. The present solution uses a one-piece stamping that is convenient to process and manufacture.
3. 3. In the present solution, a mounting hole is provided at each of the horizontal panel connecting section and the mounting sections, which makes the mounting method flexible.

character list

• 1 zeigt eine schematische perspektivische Ansicht der Struktur der Pfette der vorliegenden Erfindung;
• 2 zeigt eine schematische Ansicht der Struktur der Photovoltaikbaugruppe der vorliegenden Erfindung.

The present invention will be described in more detail below in connection with the accompanying drawings and specific embodiments.

• 1 shows a schematic perspective view of the structure of the purlin of the present invention;
• 2 Figure 12 shows a schematic view of the structure of the photovoltaic assembly of the present invention.

reference list

1

purlin,

11

trapezoidal side plate section,

12

horizontal panel connection section,

121

first mounting hole,

13

inclined plate connection section,

14

assembly section,

141

second mounting hole,

2

photovoltaic main carrier,

3

Photovoltaic Panel/Photovoltaic Module Body,

4

Hanger.

Detailed Embodiments

In order to explain the technical solutions in the embodiments of the present invention and the related art more clearly, the drawings needed to describe the embodiments or the related art are briefly introduced below. Obviously, the drawings in the following description represent only some exemplary embodiments of the present invention. The person skilled in the art can also obtain further drawings based on these drawings without making an inventive effort.

As a specific embodiment, reference is made to FIG 1 and 2 a purlin 1 is shown mounted by a bracket 4 to a photovoltaic main support 2, a photovoltaic panel 3 being mounted on the upper part of the purlin 1. The purlin 1 has two trapezoidal side panel sections 11, a horizontal panel connecting section 12, two inclined panel connecting sections 13 and two mounting sections 14. FIG. Here, the two trapezoidal side plate sections 11 are arranged opposite to each other, with upper bases of the two trapezoidal side plate sections 11 being connected to each other by the horizontal plate connecting section 12 and being on a side facing the photovoltaic main carrier 2; respective legs of the two trapezoidal side plate portions 11 are connected to each other by the two inclined plate connecting portions 13, respectively; wherein the two mounting portions 14 are respectively connected to bottom bases of the two trapezoidal side plate portions 11 and extend along an arrangement direction of the photovoltaic panel to mount the photovoltaic panel 3 . In the practical application of the purlin 1, the load requirements at the middle section are highest and the load requirements at both ends are lowest. Therefore, in this embodiment, the two trapezoidal side plate sections 11, the horizontal plate connecting section 12 and the two inclined plate connecting sections 13 are connected to form a trapezoidal structure of the purlin 1, so that the height dimension of the central portion of the purlin 1 is largest and the corresponding load is also greatest here, along the direction away from the middle section the height dimension is gradually reduced, the material used is reduced and the corresponding stress also gradually decreases. The settings in this embodiment can meet the following requirements in practical applications: the load requirement on the central portion of the purlin 1 is higher than that of both ends, the height dimension of both ends is small, and the purlin is not easily torn at its extreme edge. In addition, since the height dimensions of both ends of the purlin 1 are reduced, the production materials of the purlin 1 are reduced and the cost is greatly saved.

So far, the person skilled in the art can understand that the overall structure of the purlin 1 in this solution is actually the inventive core of this solution. The purlin 1 of this solution maintains the conventional structure of the groove-shaped steel purlin at its central portion to ensure the load-bearing capacity of the central portion of the purlin 1. On this basis, the appropriate dimension is adjusted according to the actual load requirements at other points of the purlin 1. In the present exemplary embodiment, it is advantageous that the height dimension gradually decreases linearly from the middle section to both ends. Other structures that decrease in height dimension in an arc or fold line are routine variations for those of ordinary skill in the art.

As another embodiment, reference is made to FIG 1 the horizontal panel connecting portion 12 is provided with a first mounting hole 121, while the mounting portion 14 is provided with at least one second mounting hole 141. By arranging the first mounting hole 121 and the second mounting hole 141 , the horizontal panel connecting portion 12 can be connected to the photovoltaic main beam 2 , and the photovoltaic panel 3 can be mounted to the mounting portion 14 . In this embodiment, the first mounting hole 121 and the second mounting hole 141 can be adapted to screw connection or the like to realize the connection as well as the mounting. The first mounting hole 121 and the second mounting hole 141 are advantageously formed as waist-shaped holes that have a high degree of size adjustment.

In addition, the two ends of the horizontal plate connecting portion 12 are respectively connected to two inclined plate connecting portions 13, wherein the purlin 1 is a one-piece stamping, wherein the two trapezoidal side plate portions 11 are arranged parallel to each other, the two trapezoidal side plate portions 11 perpendicular to the horizontal plate connecting portion 12 and between the two inclined plate connecting portions 13. In this embodiment, the purlin 1 is integrally formed by stamping with the adjacent components arranged perpendicularly to each other, which is convenient for processing, has good structural stability, and allows good bearing capacity at each point.

In the present solution, a bracket for solar tracking, as in 2 shown, provided comprising: a plurality of columns (not shown in the figure), a photovoltaic main frame 2, a purlin 1 described above, and a photovoltaic assembly body 3. The photovoltaic main frame 2 is mounted on tops of the plurality of columns, wherein the photovoltaic assembly body 3 is connected to the photovoltaic main support 2 by the purlin 1 . In particular, it is provided that an upper end of the photovoltaic main carrier 2 is connected perpendicularly to the horizontal panel connection section 12 , with a U-shaped bracket 4 being fixedly connected to the horizontal panel connection section 12 . Specifically, both upper ends of the bracket 4 are passed through the first two mounting holes 121 and fixed by a bolt-nut structure, so that the bracket 4 clamps the photovoltaic mainframe 2, realizing the fixation of the purlin 1 to the photovoltaic mainframe 2 . The mounting section 14 is firmly connected to a frame of the photovoltaic assembly body 3 . In the present solution, the photovoltaic assembly body 3 is connected to the photovoltaic main support 2 through the purlin 1, which can increase the overall stability of the photovoltaic assembly and ensure the continuous and stable power generation of the photovoltaic assembly. In the present embodiment, the U-shaped bracket 4 is a U-shaped bolt.

Only the preferred embodiments of the present invention have been presented above. It should be noted that several improvements and modifications can be made by those skilled in the art without departing from the principle of the present invention, as long as these improvements and modifications also fall within the scope of the present utility model.

Claims (9)

Purlin mounted on a photovoltaic main beam and used for mounting a photovoltaic panel, characterized in that it comprises: two trapezoidal side panel sections arranged opposite to each other; a horizontal plate connecting portion, upper bases of the two trapezoidal side plate portions being connected to each other by the horizontal plate connecting portion and located on a side facing the photovoltaic main frame; two inclined plate connecting portions, corresponding legs of the two trapezoidal side plate portions being connected to each other by the two inclined plate connecting portions, respectively; two mounting portions respectively connected to bottom bases of the two trapezoidal side plate portions and extending along an arrangement direction of the photovoltaic panel to mount the photovoltaic panel. purl after claim 1 , characterized in that the horizontal panel connecting portion is provided with two first mounting holes. purl after claim 1 , characterized in that the mounting portion is provided with at least a second mounting hole. purl after claim 1 , characterized in that two ends of the horizontal plate connecting portion are connected to the two inclined plate connecting portions, respectively. purl after claim 4 , characterized in that the purlin is a one-piece stamped part. Purlin after one of Claims 1 until 5 , characterized in that the two trapezoidal side plate sections are arranged parallel to each other, the two trapezoidal side plate sections being perpendicular to the horizontal plate connecting section and the two inclined plate connecting sections. Solar tracking support, characterized in that it comprises: a plurality of columns, a photovoltaic main support, a purlin according to any one of Claims 1 until 6 and a photovoltaic assembly body; wherein the photovoltaic mainframe is mounted on tops of the plurality of pillars, the photo voltaic assembly body is connected to the photovoltaic main beam by the purlin. Bracket for solar tracking claim 7 , characterized in that an upper end of the photovoltaic main support is connected to the horizontal plate connecting portion, wherein a U-shaped bracket is fixedly connected to the horizontal plate connecting portion to clamp the photovoltaic main support therebetween, wherein the mounting portion is fixed to a frame of the Photovoltaic assembly body is connected. Bracket for solar tracking claim 8 , characterized in that the U-shaped bracket is a U-shaped bolt.

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