Photovoltaic system and its flexible support

Abstract

The present invention discloses a photovoltaic system and a flexible support thereof, wherein the flexible support comprises: a plurality of support frames and at least one rope assembly, wherein the rope assembly is arranged between two adjacent support frames; the rope assembly comprises at least one stabilizing rope and at least two load-bearing ropes, wherein both ends of the load-bearing rope and the stabilizing rope are respectively connected to two adjacent support frames, wherein the whole or a part of the stabilizing rope is lower than the load-bearing rope, and the stabilizing rope is opposite to the gap between the two adjacent load-bearing ropes, a supporting member is arranged between the two adjacent load-bearing ropes and the stabilizing rope, and the supporting member is connected to both the two adjacent load-bearing ropes and the stabilizing rope; and the flexible support further comprises a counterweight connected to the load-bearing rope.

Description

Technical Field

[0001] The present invention relates to the field of solar energy technology, and more specifically to a photovoltaic system and a flexible bracket thereof. Background Art

[0002] At present, the flexible components of solar photovoltaic generally include two load-bearing cables. The photovoltaic components are installed on the upper side of the two load-bearing cables and supported by the two load-bearing cables. In order to prevent the load-bearing cables from being easily deformed after the wind blows, the load-bearing cables generally require a large pre-tightening force to ensure sufficient rigidity. However, a large pre-tightening force will limit the span of the load-bearing cables and reduce their lifespan. Summary of the invention

[0003] In view of this, a first object of the present invention is to provide a flexible bracket, the structural design of which can effectively improve reliability. A second object of the present invention is to provide a photovoltaic system including the above-mentioned flexible bracket.

[0004] In order to achieve the above first object, the present invention provides the following technical solutions:

[0005] A flexible bracket, comprising:

[0006] A plurality of support frames and at least one rope assembly, wherein the rope assembly is arranged between two adjacent support frames;

[0007] The rope assembly includes at least one stabilizing cable and at least two load-bearing cables, the two ends of the load-bearing cable and the stabilizing cable are respectively connected to two adjacent support frames, the whole or part of the stabilizing cable is lower than the load-bearing cable, and the stabilizing cable is opposite to the gap between the two adjacent load-bearing cables, a support member is arranged between the two adjacent load-bearing cables and the stabilizing cable, and the support member is connected to both the two adjacent load-bearing cables and the stabilizing cable;

[0008] The flexible support further comprises a counterweight connected to the load-bearing cable.

[0009] Preferably, in the above-mentioned flexible bracket, the plurality of support frames include at least one row of support frames, each row of support frames includes a plurality of support frames arranged in sequence, and the rope assembly is arranged between two adjacent support frames in the same row.

[0010] Preferably, in the above-mentioned flexible bracket, the counterweight has a through hole for the load-bearing cable to pass through.

[0011] Preferably, in the above-mentioned flexible bracket, the distance between the through hole and the bottom of the counterweight piece is greater than the distance between the through hole and the top of the counterweight block.

[0012] Preferably, in the above-mentioned flexible bracket, the counterweight member is a counterweight block, there are multiple counterweight blocks, and each of the load-bearing cables is sequentially provided with multiple counterweight blocks.

[0013] Preferably, in the above-mentioned flexible bracket, the counterweight member is a first strip-shaped counterweight block, and each of the load-bearing cables is provided with one of the first strip-shaped counterweight blocks.

[0014] Preferably, in the above-mentioned flexible bracket, the counterweight is connected to both load-bearing cables via a connecting cable.

[0015] Preferably, in the above-mentioned flexible bracket, the counterweight piece is a second strip counterweight block, and a second strip counterweight block is arranged under two adjacent load-bearing cables of the rope assembly. The second strip counterweight block is connected to any of the load-bearing cables through a plurality of connecting cables arranged in sequence along the length direction of the load-bearing cables.

[0016] Preferably, in the above-mentioned flexible bracket, a plurality of groups of the rope assemblies are arranged between two adjacent support brackets;

[0017] The counterweight piece is a third strip counterweight block, and the third strip counterweight block is connected to multiple groups of load-bearing cables of the rope assembly arranged between two adjacent support frames through a connecting cable.

[0018] Preferably, in the above-mentioned flexible bracket, the load-bearing ropes of the multiple groups of rope assemblies between two adjacent support frames are connected to the multiple third strip-shaped counterweight blocks;

[0019] A plurality of the third strip-shaped counterweight blocks are arranged in sequence along the length direction of the rope assembly.

[0020] Preferably, in the above-mentioned flexible bracket, the support member is a triangular support rod.

[0021] A photovoltaic system comprises the flexible bracket as described in any one of the above.

[0022] The flexible support provided in the present application is mainly used to support photovoltaic components. Specifically, the flexible support includes a plurality of support frames and at least one rope assembly.

[0023] The rope assembly is arranged between two adjacent support frames. Specifically, the two support frames jointly support the rope assembly. The photovoltaic assembly is assembled on the rope assembly so that the rope assembly supports the photovoltaic assembly thereon.

[0024] The rope assembly includes at least one stabilizing rope and at least two load-bearing ropes. The two ends of the load-bearing rope and the stabilizing rope are respectively connected to two adjacent support frames, so that the load-bearing rope and the stabilizing rope are arranged between two adjacent support frames, and the two adjacent support frames jointly support the load-bearing rope and the stabilizing rope of the rope assembly.

[0025] The stabilizing cable is entirely or partially lower than the load-bearing cable. Specifically, the stabilizing cable is entirely lower than the load-bearing cable, or a portion of the stabilizing cable is lower than the load-bearing cable. Since the photovoltaic module is located on the upper side of the load-bearing cable, in order not to affect the installation of the photovoltaic module, the stabilizing cable at the location where the photovoltaic module is installed should be set lower than the load-bearing cable.

[0026] The stabilizing cable is opposite to the gap between two adjacent load-bearing cables, so that the stabilizing cable and the two adjacent load-bearing cables together form a triangular structure. A support is provided between the two adjacent load-bearing cables and the stabilizing cable, and the support is connected to the two adjacent load-bearing cables and the stabilizing cable.

[0027] Specifically, the support member is located between the stabilizing cable and two adjacent load-bearing cables, and the support member is connected to the two adjacent load-bearing cables and the stabilizing cable, so as to realize the support member's supporting function on the two adjacent load-bearing cables and the stabilizing cable, and ensure that the distance between the two adjacent load-bearing cables and the stabilizing cable remains unchanged, so as to make the rope assembly more stable. Each rope assembly can be provided with a plurality of support members along the length direction of the load-bearing cable and the stabilizing cable, and the plurality of support members are arranged in sequence along the length direction of the load-bearing cable and the stabilizing cable.

[0028] The flexible support further comprises a counterweight connected to the load-bearing cable, wherein the counterweight applies a downward force to the load-bearing cable.

[0029] When the above-mentioned flexible bracket is used, under the action of wind suction, the force direction of the rope assembly is upward, and the stabilizing effect of the stabilizing cable is greatly reduced. At this time, the load-bearing cable is mainly relied on to resist the wind suction load. The counterweight block can effectively increase the downward force of the load-bearing cable to improve the ability of the flexible bracket to resist the wind suction load and improve reliability. In addition, the setting of the counterweight block can reduce the wind-induced vibration of the load-bearing cable, further ensuring the reliability of the flexible bracket.

[0030] In order to achieve the second objective, the present invention further provides a photovoltaic system, which includes any of the above-mentioned flexible brackets. Since the above-mentioned flexible brackets have the above-mentioned technical effects, the photovoltaic system having the flexible brackets should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a flexible bracket provided by an embodiment of the present invention;

[0033] Figure 2A schematic diagram of the structure of the assembly of the load-bearing cable and the counterweight block provided in the first embodiment of the present invention;

[0034] Figure 3 for Figure 2 The structural diagram of the middle counterweight block;

[0035] Figure 4 A schematic diagram of the structure of the assembly of the load-bearing cable and the counterweight block provided in the second embodiment of the present invention;

[0036] Figure 5 A schematic diagram of the structure of the assembly of the load-bearing cable and the counterweight block provided in the third embodiment of the present invention;

[0037] Figure 6 A schematic structural diagram of the assembly of a load-bearing cable and a counterweight block provided in the fourth embodiment of the present invention.

[0038] exist Figure 1 middle:

[0039] 01-load-bearing cable, 02-stabilizing cable;

[0040] exist Figure 2-Figure 6 middle:

[0041] 1-load-bearing cable, 2-counterweight block, 3-first strip-shaped counterweight block, 4-second strip-shaped counterweight block, 5-connecting cable, 6-stabilizing cable, 7-support member, 8-third strip-shaped counterweight block. DETAILED DESCRIPTION

[0042] Based on the background technology, in the prior art, the pre-tightening force of the two load-bearing cables is increased to reduce deformation and resist external loads, which results in a limited span and reduced life of the load-bearing cables. Figure 1 As shown, in order to solve the above problems, the applicant has conducted in-depth research and added a stabilizing cable 02 below the two load-bearing cables 01. The two load-bearing cables 01 and the stabilizing cable 02 jointly support the photovoltaic module, similar to a triangular support, and the two ends of the stabilizing cable 02 are set higher than the middle part, so that the stabilizing cable 02 provides an upward supporting force. Due to the added support of the stabilizing cable 02, the stability of the flexible bracket is improved, so that the preload force of the load-bearing cable 01 can be appropriately reduced.

[0043] However, with such a configuration, when the flexible bracket is subjected to a large wind suction load, the two load-bearing cables 01 and the stabilizing cable 02 will tilt severely with the wind, causing the stabilizing cable 02 to fail, and the structure becomes similar to the two load-bearing cables 01, which is prone to vibration, large deformation and other forms of damage. In view of this, the purpose of this application is to improve the reliability of the flexible bracket of the photovoltaic module so that it is not easy to deform after the wind blows. This application also provides a photovoltaic system including the above-mentioned flexible bracket.

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0046] See also Figure 2-Figure 6 The flexible support provided by the present application is mainly used to support photovoltaic modules. Specifically, the flexible support includes a plurality of support frames and at least one rope assembly.

[0047] The rope assembly is arranged between two adjacent support frames. Specifically, the two support frames jointly support the rope assembly. The photovoltaic assembly is assembled on the rope assembly so that the rope assembly supports the photovoltaic assembly thereon.

[0048] The rope assembly includes at least one stabilizing rope 6 and at least two load-bearing ropes 1. The two ends of the load-bearing rope 1 and the stabilizing rope 6 are respectively connected to two adjacent support frames, so that the load-bearing rope 1 and the stabilizing rope 6 are erected between two adjacent support frames, and the two adjacent support frames jointly support the load-bearing rope 1 and the stabilizing rope 6 of the rope assembly.

[0049] The entire or a part of the stabilizing cable 6 is lower than the load-bearing cable 1. Specifically, the entire stabilizing cable 6 is lower than the load-bearing cable 1, or a part of the stabilizing cable 6 is lower than the load-bearing cable 1. Since the photovoltaic module is located on the upper side of the load-bearing cable 1, in order not to affect the installation of the photovoltaic module, the stabilizing cable 6 should be lower than the load-bearing cable 1 at the location where the photovoltaic module is installed.

[0050] The stabilizing cable 6 is opposite to the gap between the two adjacent load-bearing cables 1, so that the stabilizing cable 6 and the two adjacent load-bearing cables 1 together form a triangular structure, and a support member 7 is arranged between the two adjacent load-bearing cables 1 and the stabilizing cable 6, and the support member 7 is connected to the two adjacent load-bearing cables 1 and the stabilizing cable 6.

[0051] Specifically, the support member 7 is located between the stabilizing cable 6 and the two adjacent load-bearing cables 1, and the support member 7 is connected to the two adjacent load-bearing cables 1 and the stabilizing cable 6, so as to realize the supporting effect of the support member 7 on the two adjacent load-bearing cables 1 and the stabilizing cable 6, and ensure that the distance between the two adjacent load-bearing cables 1 and the stabilizing cable 6 is unchanged, so as to make the rope assembly more stable. Each rope assembly can be provided with a plurality of support members 7 along the length direction of the load-bearing cable 1 and the stabilizing cable 6, and the plurality of support members 7 are arranged in sequence along the length direction of the load-bearing cable 1 and the stabilizing cable 6.

[0052] The flexible support further comprises a counterweight connected to the load-bearing cable 1 , and the counterweight applies a downward force to the load-bearing cable 1 .

[0053] When the above-mentioned flexible bracket is used, under the action of wind suction, the force direction of the rope assembly is upward, and the stabilizing effect of the stabilizing cable 6 is greatly reduced. At this time, the load-bearing cable 1 is mainly relied on to resist the wind suction load. The counterweight can effectively increase the downward force of the load-bearing cable 1 to improve the ability of the flexible bracket to resist the wind suction load and improve reliability. In addition, the setting of the counterweight can reduce the wind-induced vibration of the load-bearing cable 1, further ensuring the reliability of the flexible bracket.

[0054] In a specific embodiment, the plurality of support frames include at least one row of support frames, each row of support frames includes a plurality of support frames arranged in sequence, and a rope assembly is provided between two adjacent support frames in the same row. One or more rope assemblies may be provided between two adjacent support frames in the same row. When a plurality of rope assemblies are provided between two adjacent support frames in the same row, the plurality of rope assemblies may be arranged in sequence.

[0055] Preferably, each rope assembly may include two load-bearing cables 1 and a stabilizing cable 6, such that the stabilizing cable 6 is below the two load-bearing cables 1, and the stabilizing cable 6 is opposite to the gap between the two load-bearing cables 1. The stabilizing cable 6 is connected to the two load-bearing cables 1 by a support member 7, so as to increase the reliability of the load-bearing cables 1 and reduce the risk of tilting and overturning.

[0056] like Figure 2 and Figure 3 As shown, in the first embodiment of the present application, the counterweight has a through hole for the load-bearing cable 1 to pass through. In this arrangement, the load-bearing cable 1 can directly pass through the counterweight block 2.

[0057] In order to prevent the installation of the photovoltaic module from being affected, the distance between the through hole and the bottom of the counterweight block 2 is greater than the distance between the through hole and the top of the counterweight block 2. Specifically, the distance between the center line of the through hole and the bottom of the counterweight block 2 is greater than the distance between the center line of the through hole and the top of the counterweight block 2, and the through hole is arranged closer to the top of the counterweight block 2. Of course, the through hole can also be located in the middle of the counterweight block 2, which is not limited here. With such an arrangement, the height of the counterweight block 2 above the load-bearing cable 1 can be appropriately reduced, thereby preventing the portion of the counterweight block 2 above the load-bearing cable 1 from affecting the installation of the photovoltaic module.

[0058] In the first embodiment, the counterweight is a counterweight block 2, and there are multiple counterweight blocks 2, and each load-bearing cable 1 is sequentially penetrated with multiple counterweight blocks 2. Specifically, the load-bearing cable 1 passes through the through holes of multiple counterweight blocks 2 one by one, which not only increases the downward force of the load-bearing cable 1 and the ability to resist wind suction load, but also multiple counterweight blocks 2 also increase the vibration damping of the rope assembly, thereby reducing wind-induced vibration.

[0059] like Figure 4 As shown, in the second embodiment provided by the present application, the counterweight may be a first bar counterweight 3, the first bar counterweight 3 is provided with a through hole for the load-bearing cable 1 to pass through, and each load-bearing cable 1 is provided with a first bar counterweight 3. The length direction of the first bar counterweight 3 extends along the length direction of the load-bearing cable 1. Specifically, the load-bearing cable 1 and the first bar counterweight 3 may be assembled and then connected to the support frame.

[0060] The counterweight piece can also be connected to both load-bearing cables 1 through a connecting cable 5. Specifically, one end of the connecting cable 5 can be connected to the counterweight piece, and the other end of the connecting cable 5 can be connected to the load-bearing cable 1. Alternatively, the connecting cable 5 is annular, and the counterweight piece and the load-bearing cable 1 both pass through the annular connecting cable 5, so that the load-bearing cable 1 supports the counterweight piece.

[0061] like Figure 5 As shown, in the third embodiment provided by the present application, the counterweight member can be a second strip counterweight block 4, and a second strip counterweight block 4 is arranged under two adjacent load-bearing cables 1 of the rope assembly, so that the two adjacent load-bearing cables 1 share one second strip counterweight block 4.

[0062] Specifically, the second bar-shaped counterweight 4 is connected to any load-bearing cable 1 through a plurality of connecting cables 5, and the plurality of connecting cables 5 are arranged in sequence along the length direction of the load-bearing cable 1. In this embodiment, the length of the second bar-shaped counterweight 4 extends along the length direction of the load-bearing cable 1, and two adjacent load-bearing cables 1 share one second bar-shaped counterweight 4, which has a simple structure and lower cost. Specifically, one end of the connecting cable 5 can be connected to the second bar-shaped counterweight 4, and the other end of the connecting cable 5 can be connected to the load-bearing cable 1. Alternatively, the connecting cable 5 is annular, and the second bar-shaped counterweight 4 and the load-bearing cable 1 both pass through the annular connecting cable 5, so that the load-bearing cable 1 supports the second bar-shaped counterweight 4.

[0063] like Figure 6 As shown, in the fourth embodiment provided by the present application, multiple groups of rope assemblies are arranged between two adjacent support frames. The multiple groups of rope assemblies between two adjacent support frames can be arranged parallel to each other.

[0064] The counterweight is a third bar counterweight 8. The third bar counterweight 8 is connected to the load-bearing cables 1 of the multiple rope assemblies between the two adjacent support frames through the connecting rope 5. In this way, the length direction of the third bar counterweight 8 is perpendicular to the length direction of the load-bearing cables 1, and the third bar counterweight 8 is arranged across the multiple rope assemblies between the two adjacent support frames, so that the third bar counterweight 8 is connected to the load-bearing cables 1 of the multiple rope assemblies between the two adjacent support frames.

[0065] Furthermore, in order to make the load-bearing cable 1 bear more balanced force, the load-bearing cables 1 of the multiple groups of rope assemblies between two adjacent support frames are connected to multiple third bar-shaped counterweights 8. The multiple third bar-shaped counterweights 8 are arranged in sequence along the length direction of the rope assembly. In this way, the multiple third bar-shaped counterweights 8 simultaneously apply downward force to the load-bearing cables 1 of the multiple groups of rope assemblies between two adjacent support frames.

[0066] Specifically, the load-bearing ropes 1 of the multiple rope assemblies between two adjacent support frames can be connected to three third bar-shaped counterweights 8. Of course, the number of the third bar-shaped counterweights 8 can be set according to actual conditions.

[0067] The first bar-shaped counterweight block 3 , the second bar-shaped counterweight block 4 and the third bar-shaped counterweight block 8 may all be arranged lower than the stabilizing cable 6 so as not to affect the installation of the supporting member 7 and the photovoltaic assembly.

[0068] In a specific embodiment, the counterweight may be a concrete block, a stone, a metal piece, or a soft bag with water or soil wrapped inside. The metal piece may also contain soil or water to increase the weight. The soft bag may be a plastic bag, with soil or water placed inside the plastic bag to increase the weight.

[0069] Of course, the counterweight may also be other structures, which are not limited here.

[0070] In order to simplify the structure, the support member 7 can be a triangular support rod, and the three corners of the triangular support rod are respectively connected to the two load-bearing cables 1 and the stabilizing cable 6. Of course, the support member 7 can also be a triangular plate. Of course, in order to reduce wind resistance, the support member 7 needs to be provided with ventilation holes.

[0071] Based on the flexible bracket provided in the above embodiment, the present invention further provides a photovoltaic system, which includes any one of the flexible brackets in the above embodiment. Since the photovoltaic system adopts the flexible bracket in the above embodiment, please refer to the above embodiment for the beneficial effects of the photovoltaic system.

[0072] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0073] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A flexible bracket, characterized in that: include: A plurality of support frames and at least one rope assembly, wherein the rope assembly is arranged between two adjacent support frames; The rope assembly comprises at least one stabilizing rope (6) and at least two load-bearing ropes (1), the two ends of the load-bearing rope (1) and the stabilizing rope (6) are respectively connected to two adjacent support frames, the stabilizing rope (6) is entirely or partially lower than the load-bearing rope (1), and the stabilizing rope (6) is opposite to the gap between the two adjacent load-bearing ropes (1), a support member (7) is provided between the two adjacent load-bearing ropes (1) and the stabilizing rope (6), and the support member (7) is connected to both the two adjacent load-bearing ropes (1) and the stabilizing rope (6); The flexible support further comprises a counterweight connected to the load-bearing cable (1), wherein the counterweight applies a downward force to the load-bearing cable (1) to improve the ability of the flexible support to resist wind suction loads; A plurality of groups of the rope assemblies are arranged between two adjacent support frames, the counterweight is a third strip counterweight block (8), the third strip counterweight block (8) is connected to the load-bearing cables (1) of the plurality of groups of the rope assemblies arranged between the two adjacent support frames through a connecting cable (5), and the length direction of the third strip counterweight block (8) is arranged perpendicular to the length direction of the load-bearing cables (1); The load-bearing ropes (1) of the multiple groups of rope assemblies between two adjacent support frames are all connected to the multiple third strip-shaped counterweight blocks (8); A plurality of the third strip-shaped counterweight blocks (8) are arranged in sequence along the length direction of the rope assembly.

2. The flexible bracket according to claim 1, characterized in that: The plurality of support frames include at least one row of support frames, each row of support frames includes a plurality of support frames arranged in sequence, and the rope assembly is arranged between two adjacent support frames in the same row.

3. The flexible bracket according to claim 1 or 2, characterized in that: The support member (7) is a triangular support rod.

4. A photovoltaic system, characterized in that: Comprising the flexible bracket as described in any one of claims 1-3.

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