A flexible photovoltaic support wind-resistant system and a flexible photovoltaic support

Abstract

The flexible photovoltaic support wind-resistant system disclosed in the present invention includes a cable structure and a wind-resistant component. The cable structure includes a main cable component, a stabilizing cable component and a wind-resistant cable. The main cable component includes a first main cable and a second main cable arranged in parallel. The stabilizing cable component includes a first stabilizing cable and a second stabilizing cable. The extension direction of the first stabilizing cable, the second stabilizing cable and the wind-resistant cable are the same as the extension direction of the first main cable. The wind-resistant component includes a plurality of wind-resistant frames arranged at intervals. The wind-resistant frame is arranged between the main cable component and the stabilizing cable component. The wind-resistant frame includes at least one plane frame. The wind-resistant cable is connected to the wind-resistant frame. The flexible photovoltaic support wind-resistant system disclosed in the present invention has a wind-resistant frame that connects the stabilizing cable component to the main cable component to form a four-cable spatial cage structure. The wind-resistant cable is connected to the wind-resistant frame, which can improve the structural stability and reduce the risk of hidden cracks in the photovoltaic component. The present invention also discloses a flexible photovoltaic support.

Description

Technical Field

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

[0002] The flexible photovoltaic bracket directly supports the photovoltaic components thereon through two main cables. The two main cables are arranged in parallel to form a planar structure. The rigidity and stability of the planar structure are poor, which makes the flexible photovoltaic bracket prone to structural damage and hidden cracks in the photovoltaic components when resisting loads such as wind loads, snow loads and gravity loads.

[0003] Therefore, how to improve the structural stability and wind resistance of flexible photovoltaic brackets to reduce the risk of hidden cracks in photovoltaic modules has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a flexible photovoltaic support wind resistance system to improve the structural stability and wind resistance of the flexible photovoltaic support and reduce the risk of hidden cracks in photovoltaic modules.

[0005] Another core of the present invention is to disclose a flexible photovoltaic bracket including the above-mentioned flexible photovoltaic bracket wind-resistant system.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A flexible photovoltaic support wind resistance system, comprising:

[0008] A cable structure, the cable structure comprising a main cable assembly, a stabilizing cable assembly and an anti-wind cable, the main cable assembly comprising a first main cable and a second main cable arranged in parallel, the stabilizing cable assembly comprising a first stabilizing cable and a second stabilizing cable, the extension direction of the first stabilizing cable, the second stabilizing cable and the anti-wind cable are all the same as the extension direction of the first main cable;

[0009] The wind-resistant component comprises a plurality of wind-resistant frames arranged at intervals, the wind-resistant frames are arranged between the main cable component and the stabilizing cable component, the wind-resistant frames comprise at least one plane frame, and the wind-resistant cables are connected to the wind-resistant frames.

[0010] Optionally, in the above-mentioned flexible photovoltaic support wind-resistant system, the wind-resistant cable is arched from both ends to the middle to form an upward convex arch structure.

[0011] Optionally, in the above-mentioned flexible photovoltaic support wind-resistant system, the cable structure also includes vertical cables, and the wind-resistant cables are connected to the wind-resistant frame through the vertical cables.

[0012] Optionally, in the above-mentioned flexible photovoltaic support wind-resistant system, along the extension direction of the first main cable, the height of the wind-resistant frame close to the ends of the first main cable and the second main cable is smaller than the height of the wind-resistant frame located in the middle position, so that the first stabilizing cable and the second stabilizing cable present an arched structure with a concave middle part.

[0013] Optionally, in the above-mentioned flexible photovoltaic support wind-resistant system, the plane frame includes an upper chord, a lower chord and a first connecting rod, and both ends of the upper chord and the lower chord are connected by the first connecting rod;

[0014] The vertical cable is arranged between the upper chord and the wind-resistant cable.

[0015] Optionally, in the above-mentioned flexible photovoltaic support wind-resistant system, the planar frame also includes a second connecting rod located between the two first connecting rods, and the number of the second connecting rod is at least one.

[0016] Optionally, in the above-mentioned flexible photovoltaic support wind-resistant system, the number of the second connecting rods is two and they are arranged in a V shape, and the first ends of the two second connecting rods intersect at the lower chord.

[0017] Optionally, in the above-mentioned flexible photovoltaic support wind-resistant system, the wind-resistant frame includes two planar frames, and the two planar frames share a lower chord.

[0018] Optionally, in the above-mentioned flexible photovoltaic support wind-resistant system, the number of vertical cables connected to each wind-resistant frame is at least two.

[0019] A flexible photovoltaic support comprises the above-mentioned flexible photovoltaic support wind-resistant system.

[0020] It can be seen from the above scheme that the wind-resistant system of the flexible photovoltaic support disclosed by the present invention, the wind-resistant frame connects the stabilizing cable assembly with the main cable assembly to form a four-cable space cage structure, which can improve the structural stability of the flexible photovoltaic support and resist downward loads such as gravity load, snow load, and wind pressure; the wind-resistant cable and the wind-resistant frame are connected, and when subjected to other upward loads such as wind suction or wind lifting, the displacement of the structure is constrained, thereby improving the structural stability and reducing the risk of hidden cracks in the photovoltaic assembly. The flexible photovoltaic support has the same technical effect as the wind-resistant system of the flexible photovoltaic support, which will not be repeated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1It is a structural schematic diagram of a flexible photovoltaic support wind resistance system disclosed in an embodiment of the present invention;

[0023] Figure 2 A top view of a flexible photovoltaic support wind-resistant system disclosed in an embodiment of the present invention;

[0024] Figure 3 It is a front view of the flexible photovoltaic support wind-resistant system disclosed in an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of assembling the wind-resistant frame disclosed in the first embodiment of the present invention;

[0026] Figure 5 It is an axonometric view of the wind-resistant frame disclosed in the first embodiment of the present invention;

[0027] Figure 6 It is a front view of the wind-resistant frame disclosed in the first embodiment of the present invention;

[0028] Figure 7 A side view of a wind-resistant frame disclosed in a first embodiment of the present invention;

[0029] Figure 8 is a top view of a wind-resistant frame disclosed in a first embodiment of the present invention;

[0030] Fig. 9 It is a schematic diagram of assembling a wind-resistant frame disclosed in a second embodiment of the present invention;

[0031] Fig.10 It is an axonometric view of a wind-resistant frame disclosed in a second embodiment of the present invention;

[0032] Fig.11 It is a front view of a wind-resistant frame disclosed in a second embodiment of the present invention;

[0033] Fig.12 A side view of a wind-resistant frame disclosed in a second embodiment of the present invention;

[0034] Fig.13 A top view of a wind-resistant frame disclosed in a second embodiment of the present invention;

[0035] Fig.14 It is a structural schematic diagram of a cable connecting member disclosed in an embodiment of the present invention;

[0036] Fig.15 The figure is a schematic structural diagram of a U-shaped shackle disclosed in an embodiment of the present invention.

[0037] Wherein, 100, main cable assembly, 110, first main cable, 120, second main cable;

[0038] 200, stabilizing cable assembly, 210, first stabilizing cable, 220, second stabilizing cable;

[0039] 300, wind-resistant cable;

[0040] 400, wind-resistant frame, 410, plane frame, 411, upper chord, 412, lower chord, 413, first connecting rod, 414, second connecting rod;

[0041] 500, vertical cable;

[0042] 600, cable connector, 610, mounting seat, 620, U-bolt, 630, nut, 640, washer;

[0043] 700, U-shaped shackle. DETAILED DESCRIPTION

[0044] The core of the present invention is to disclose a flexible photovoltaic support wind resistance system to improve the structural stability and wind resistance of the flexible photovoltaic support and reduce the risk of hidden cracks in photovoltaic components.

[0045] Another core of the present invention is to disclose a flexible photovoltaic bracket including the above-mentioned flexible photovoltaic bracket wind-resistant system.

[0046] 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.

[0047] like Figure 1-Figure 3 As shown, an embodiment of the present invention discloses a flexible photovoltaic support wind-resistant system, including a cable structure and a wind-resistant component.

[0048] The cable structure specifically includes a main cable assembly 100, a stabilizing cable assembly 200 and an anti-wind cable 300. The main cable assembly 100 includes a first main cable 110 and a second main cable 120 arranged in parallel. The main cable assembly 100 is used to directly support the photovoltaic module. The stabilizing cable assembly 200 includes a first stabilizing cable 210 and a second stabilizing cable 220. The extension direction of the first stabilizing cable 210, the second stabilizing cable 220 and the anti-wind cable 300 is the same as the extension direction of the first main cable 110. Preferably, the first stabilizing cable 210 is arranged below the first main cable 110, and the second stabilizing cable 220 is arranged below the second main cable 120.

[0049] The wind-resistant assembly includes a plurality of wind-resistant frames 400 arranged at intervals. The wind-resistant frames 400 are arranged between the main cable assembly 100 and the stabilizing cable assembly 200, that is, and are arranged between the first main cable 110, the second main cable 120, the first stabilizing cable 210 and the second stabilizing cable 220, and the first main cable 110, the second main cable 120, the first stabilizing cable 210 and the second stabilizing cable 220 are connected to form a spatial cable structure. The wind-resistant frame 400 includes at least one plane frame 410, and the wind-resistant cable 300 is connected to the wind-resistant frame 400. Preferably, the wind-resistant cable 300 is arranged directly below the central axis between the first main cable 110 and the second main cable 120. The wind-resistant cable 300 and the wind-resistant frame 400 can be connected by a rigid connection or a flexible connection, which is not specifically limited.

[0050] The flexible photovoltaic support wind-resistant system disclosed in the embodiment of the present invention, the wind-resistant frame 400 connects the stabilizing cable assembly 200 with the main cable assembly 100 to form a four-cable spatial cage structure, which can improve the structural stability of the flexible photovoltaic support and resist downward loads such as gravity load, snow load, and wind pressure; the wind-resistant cable 300 is connected to the wind-resistant frame 400, and when subjected to other upward loads such as wind suction or wind lifting, the displacement of the structure is constrained, thereby improving the structural stability and reducing the risk of hidden cracks in the photovoltaic components.

[0051] It should be noted that the flexible photovoltaic support includes a multi-span design, and the flexible photovoltaic support wind-resistant system disclosed in the embodiment of the present invention is described by taking one span as an example. Among them, the two ends of the first stabilizing cable 210 and the second stabilizing cable 220 can be connected to the brackets at both ends of the flexible photovoltaic support of the span, and the two ends of the wind-resistant cable 300 can be connected to the ground or to the brackets at both ends, preferably connected to the brackets at both ends. This method is convenient for construction. Specifically, the wind-resistant cable 300 can be connected to the bracket by connecting ear plates or clamps. Figure 1 The laying and spacing of photovoltaic modules are only examples and do not represent the situation after all laying is completed.

[0052] like Figure 3 As shown, in some specific embodiments, the wind-resistant cable 300 is arched from both ends to the middle to form an upwardly convex arch structure. This method can release the lower space of the photovoltaic module, improve space utilization, and increase the span.

[0053] like Figure 1 and Figure 3As shown, in some specific embodiments, the cable structure further includes a vertical cable 500, and the wind-resistant cable 300 is connected to the wind-resistant frame 400 through the vertical cable 500. When subjected to other upward loads such as wind suction or wind lifting, the wind-resistant cable 300 and the vertical cable 500 work together to constrain the displacement of the structure, thereby improving the stability of the structure. Compared with the method of arranging the vertical cable 500 between the wind-resistant frame 400 and the ground anchor in the prior art, no additional support points need to be arranged in the mid-span, and the construction is simpler.

[0054] like Figure 3 As shown, along the extension direction of the first main cable 110, the height of the wind-resistant frame 400 close to the ends of the first main cable 110 and the second main cable 120 is smaller than the height of the wind-resistant frame 400 located in the middle position, so that the first stabilizing cable 210 and the second stabilizing cable 220 are in an arched structure with a concave middle portion. This method can further improve the ability to resist loads and improve structural stability.

[0055] like Figure 4-Figure 8 As shown, in some specific embodiments, the plane frame 410 includes an upper chord 411, a lower chord 412 and a first connecting rod 413, and the ends of the upper chord 411 and the lower chord 412 are connected by the first connecting rod 413, and the vertical cable 500 is arranged between the upper chord 411 and the wind-resistant cable 300. Specifically, the length of the lower chord 413 can be the same as or different from the length of the upper chord 411. As shown in the figure, the length of the lower chord 412 is greater than the length of the upper chord 411, and the upper chord 411, the lower chord 412 and the two first connecting rods 413 form a trapezoidal structure. The first connecting rod 413 can be connected to the upper chord 411 and the lower chord 412 by welding, or by connecting members, which is not specifically limited.

[0056] like Figure 9-13 As shown, in order to improve the structural stability of the wind-resistant frame 400, in other specific embodiments, the plane frame 410 further includes a second connecting rod 414 located between the two first connecting rods 413, and the number of the second connecting rod 414 is at least one.

[0057] In some specific embodiments, Figure 9-13 As shown, there are two second connecting rods 414 arranged in a V shape, and the first ends of the two second connecting rods 414 intersect at the lower chord 412. The second end of one of the second connecting rods 414 intersects with the first end of one of the first connecting rods 413 at the first end of the upper chord 411, and the second end of the other second connecting rod 414 intersects with the first end of the other first connecting rod 413 at the second end of the upper chord 411, so that a triangular structure is formed between the first connecting rod 413, the second connecting rod 414 and the lower chord 412, and a triangular structure is formed between two adjacent second connecting rods 414 and the upper chord 411, so as to improve the stability of the structure.

[0058] In order to improve the wind resistance and structural stability of the flexible photovoltaic support, in some specific embodiments, such as Figure 4-Figure 13 As shown, the wind-resistant frame 400 includes two plane frames 410 to form a spatial structure. Specifically, the two plane frames 410 can be arranged in parallel or at a certain angle. Preferably, the two plane frames 410 share a lower chord 412, that is, the two plane frames 410 are arranged at a certain angle. The lower chord 412 is located directly below the plane axis where the two upper chords 411 are located. This method can save the number of rods. Compared with the method of using a plane truss in the prior art, the wind-resistant frame 400 with a spatial structure can further improve the structural stability of the flexible photovoltaic bracket and improve the wind resistance performance. Fig. 9 In the wind-resistant frame 400 shown, the first ends of the four second connecting rods 414 in the two planar frames 410 intersect at the lower chord 412 and are arranged radially, so that the wind-resistant frame 400 has an inverted quadrangular pyramid structure, so as to further improve the structural stability of the wind-resistant frame 400.

[0059] It should be noted that the wind-resistant frame 400 can be used Figure 4 The wind-resistant frame shown can also be used Fig. 9 The wind-resistant frame 400 shown, or two wind-resistant frames 400 can be used in combination, and the specific usage is not specifically limited. Figure 1 and Figure 2 The number of wind-resistant frames 400 shown in the figure is three, and the wind-resistant frames 400 at both ends are Figure 4 The structure shown in the figure, the wind-resistant frame 400 in the middle is selected Fig. 9 In the wind-resistant frame shown, the height of the wind-resistant frame 400 in the middle is greater than the height of the wind-resistant frames 400 at both ends. The figure is only an example, and the specific type and number of wind-resistant frames 400 can be determined according to the specific use location.

[0060] In order to facilitate the connection with the main cable assembly 100, both ends of the upper chord rod 411 are provided with a bending portion, such as Figure 4 and Fig. 9 The first main cable 110 and the second main cable 120 are both connected to the upper chord 411 through the cable connector 600. Fig.14 As shown, the cable connector 600 specifically includes a mounting seat 610 and a U-shaped bolt 620 and a nut 630 matched with the mounting seat 610, and a washer 640 is arranged between the U-shaped bolt 620 and the nut 630. A space for the first main cable 110 and the second main cable 120 to pass through is formed between the U-shaped bolt 620 and the mounting seat 610. The first stabilizing cable 210 and the second stabilizing cable 220 are connected to the lower chord 412 through the cable connector 600.

[0061] Furthermore, if Figure 4 and Fig. 9 As shown, the vertical cable 500 is disposed between the upper chord rod 411 and the wind-resistant cable 300. Specifically, the vertical cable 500 is connected to the upper chord rod 411 through a U-shaped shackle 700, and is connected to the wind-resistant cable 300 through a cable connector 600. The structural schematic diagram of the U-shaped shackle 700 is shown in FIG. Fig.15 shown.

[0062] In order to further improve the structural stability of the flexible photovoltaic support, the number of vertical cables 500 connected to each wind-resistant frame 400 is at least two. Figure 4 and Fig. 9 As shown in the figure, the number of vertical cables 500 is two, and the connection point between each vertical cable 500 and the upper chord rod 411 is preferably located at the midpoint of the upper chord rod 411, as shown in FIG. Fig.12 shown.

[0063] In addition, an embodiment of the present invention further discloses a flexible photovoltaic bracket, including the above-mentioned flexible photovoltaic bracket wind resistance system, and therefore has all the technical effects of the above-mentioned flexible photovoltaic bracket, which will not be described in detail.

[0064] It should be noted that 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.

[0065] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0066] The terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0067] The directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description. They do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present application.

[0068] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A flexible photovoltaic support wind-resistant system, characterized in that: include: A cable structure, the cable structure comprising a main cable assembly (100), a stabilizing cable assembly (200), a wind-resistant cable (300) and a vertical cable (500), the main cable assembly (100) comprising a first main cable (110) and a second main cable (120) arranged in parallel, the stabilizing cable assembly (200) comprising a first stabilizing cable (210) and a second stabilizing cable (220), the extension direction of the first stabilizing cable (210), the second stabilizing cable (220) and the wind-resistant cable (300) being the same as the extension direction of the first main cable (110); A wind-resistant component, the wind-resistant component comprising a plurality of wind-resistant frames (400) arranged at intervals, the wind-resistant frames (400) being arranged between the main cable assembly (100) and the stabilizing cable assembly (200), the wind-resistant frame (400) comprising two plane frames (410), the wind-resistant cable (300) being connected to the wind-resistant frame (400); the plane frame (410) comprising an upper chord (411), a lower chord (412) and a first connecting rod (413), the upper chord (411) and the lower chord (412) having two ends connected by the first connecting rod (413); the wind-resistant frame (400) comprising two plane frames (410), and the two plane frames (410) sharing one lower chord (412); the vertical cable (500) being arranged between the upper chord (411) and the wind-resistant cable (300).

2. The flexible photovoltaic support wind-resistant system according to claim 1, characterized in that: The wind-resistant cable (300) is arched from both ends toward the middle to form an upwardly convex arched structure.

3. The flexible photovoltaic support wind-resistant system according to claim 2, characterized in that: Along the extension direction of the first main cable (110), the height of the wind-resistant frame (400) close to the ends of the first main cable (110) and the second main cable (120) is smaller than the height of the wind-resistant frame (400) located in the middle position, so that the first stabilizing cable (210) and the second stabilizing cable (220) are in an arched structure with a concave middle portion.

4. The flexible photovoltaic support wind-resistant system according to claim 1, characterized in that: The planar frame (410) further includes a second connecting rod (414) located between the two first connecting rods (413), and the number of the second connecting rod (414) is at least one.

5. The flexible photovoltaic support wind-resistant system according to claim 4, characterized in that: There are two second connecting rods (414) arranged in a V shape, and the first ends of the two second connecting rods (414) intersect at the lower chord (412).

6. The flexible photovoltaic support wind-resistant system according to claim 1, characterized in that: The number of the vertical cables (500) connected to each of the wind-resistant frames (400) is at least two.

7. A flexible photovoltaic support, characterized in that: It comprises a flexible photovoltaic support wind-resistant system as described in any one of claims 1 to 6.

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