A flexible photovoltaic racking system

Abstract

The utility model relates to a kind of flexible photovoltaic support systems, by multiple-row support component, the support component includes end column, several intermediate columns, pre-stressed steel strand is respectively connected between end column and intermediate column, between adjacent intermediate columns, the intermediate column between adjacent support component is connected with cable-stayed rod, the cable-stayed rod includes main sleeve, main sleeve two-end inner hole is slidably connected with telescopic sleeve respectively, telescopic sleeve outer end is slidably equipped with the connecting plate of being fixedly connected with intermediate column, main sleeve inner hole is slidably equipped with inner core plate, and the inner hole of telescopic sleeve is equipped with damping material.The utility model connects the intermediate column of adjacent support component by cable-stayed rod, utilizes the effect of damping material and inner core plate being arranged in cable-stayed rod, vibration energy is transferred to cable-stayed rod, to reduce the vibration response generated in the use process of photovoltaic support in this way, reduce the stress amplitude of photovoltaic support, avoid photovoltaic module to occur hidden crack phenomenon, guarantee the normal operation of photovoltaic module.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, and in particular to a flexible photovoltaic support system for installing photovoltaic modules. Background Technology

[0002] Flexible support systems are a new type of prestressed adaptive flexible support system. They use high-strength, low-relaxation prestressed galvanized steel strands as the load-bearing cables for photovoltaic modules. The axial tension of the tensioned steel strands resists the self-weight of the photovoltaic modules, snow loads, and wind loads. Therefore, compared with traditional steel frame structures, flexible photovoltaic support systems have a wider range of applications.

[0003] However, the overall stiffness of flexible photovoltaic supports is relatively small. Under the strong action of wind load, the photovoltaic modules installed on the prestressed steel strands are prone to back-and-forth displacement of the prestressed steel strands, which causes the entire support system to have a large vibration response and a large mid-span amplitude. Over time, this will cause the photovoltaic modules to develop microcracks, leading to the failure of some cells and affecting the overall power generation performance of the photovoltaic modules. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a flexible photovoltaic support system that can effectively reduce the mid-span amplitude of the photovoltaic support and ensure the normal operation of the photovoltaic modules.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a flexible photovoltaic support system, which is composed of multiple rows of support components. The support components include end columns that are set at intervals and fixed to the ground. Several intermediate columns are set between the end columns. Prestressed steel strands are connected between the end columns and the intermediate columns, and between adjacent intermediate columns. An outwardly inclined cable fixed to the ground is connected to the upper end of the end column. An inclined tie rod is connected between the intermediate columns of adjacent support components. The inclined tie rod includes a main sleeve. Telescopic sleeves are slidably connected to the inner holes at both ends of the main sleeve. A connecting plate that is fixed to the intermediate column is slidably provided at the outer end of the telescopic sleeve. An inner core plate with both ends locked in the inner end of the telescopic sleeve is slidably provided in the inner hole of the main sleeve. Damping material is provided in the inner hole of the telescopic sleeve.

[0006] Specifically, a limiting ring is fixed on the inner wall of the two ends of the main sleeve, the outer circumference of the telescopic sleeve is in clearance fit with the limiting ring, a guide ring is fixed on the outer circumferential surface of the inner end of the telescopic sleeve in clearance fit with the inner hole of the main sleeve, an inner retaining ring is fixed on the inner wall of the inner end of the telescopic sleeve, and an outer retaining ring is fixed on the inner wall of the outer end of the telescopic sleeve.

[0007] Furthermore, the inner end of the connecting plate has a baffle that fits with the inner hole of the telescopic sleeve with a clearance. The outer diameter of the baffle is larger than the inner diameter of the outer retaining ring, and the outer end of the connecting plate extends out of the outer retaining ring and is fixedly connected to the intermediate column.

[0008] Furthermore, the inner core plate is fixed to both ends with end plates that fit with the inner hole of the telescopic sleeve, and the outer diameter of the end plates is larger than the inner diameter of the inner retaining ring.

[0009] Preferably, one end of the diagonal tie rod is connected to the bottom of the intermediate column, and the other end of the diagonal tie rod is connected to the middle of the adjacent intermediate column.

[0010] Preferably, the inner core plate is made of low yield point steel, and the damping material is latex or epoxy resin.

[0011] The beneficial effects of this utility model are as follows: This utility model connects the middle column of adjacent support components through diagonal tie rods. By utilizing the damping material and inner core plate inside the diagonal tie rods, the vibration energy is transferred to the diagonal tie rods, thereby reducing the vibration response generated during the use of the photovoltaic support, reducing the force amplitude of the photovoltaic support, avoiding the occurrence of microcracks in the photovoltaic modules, and ensuring the normal operation of the photovoltaic modules. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the diagonal tie rod described in this utility model.

[0015] Figure 3 yes Figure 2 A magnified structural diagram of point A in the middle.

[0016] In the diagram: 1. End column, 2. Intermediate column, 3. Prestressed steel strand, 4. Stay cable, 5. Tie rod, 5-1. Main sleeve, 5-2. Telescopic sleeve, 6. Connecting plate, 6-1. Baffle, 7. Inner core plate, 7-1. End plate, 8. Damping material, 9. Limiting ring, 10. Guide ring, 11. Inner retaining ring, 12. Outer retaining ring. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0018] like Figures 1-3The flexible photovoltaic support system shown is composed of multiple rows of support components. Each row of support components includes two end columns 1, which are spaced apart and fixed to the ground at their lower ends. Several intermediate columns 2 are arranged between the two end columns 1. Prestressed steel strands 3 for installing photovoltaic modules are connected between the end columns 1 and the intermediate columns 2, and between adjacent intermediate columns 2. The upper end of the end columns 1 is connected to an outwardly inclined cable 4 fixed to the ground.

[0019] A diagonal brace 5 is connected between the middle columns 2 of adjacent bracket assemblies. One end of the diagonal brace 5 is connected to the bottom of the middle column 2 of a row of bracket assemblies, and the other end of the diagonal brace 5 is connected to the middle of the middle column 2 of the adjacent row of bracket assemblies.

[0020] Specifically, the tie rod 5 includes a main sleeve 5-1 with a through inner hole. Telescopic sleeves 5-2 are slidably connected to the inner holes at both ends of the main sleeve 5-1. Limiting rings 9 are fixed on the inner wall of the two ends of the main sleeve 5-1. The outer circumference of the telescopic sleeve 5-2 is clearance-fitted with the limiting rings 9. A guide ring 10 is fixed on the outer circumference of the inner end of the telescopic sleeve 5-2, which is clearance-fitted with the inner hole of the main sleeve 5-1. An inner retaining ring 11 is fixed on the inner wall of the inner end of the telescopic sleeve 5-2, and an outer retaining ring 12 is fixed on the inner wall of the outer end of the telescopic sleeve 5-2.

[0021] The telescopic sleeve 5-2 has a connecting plate 6 that is slidably connected to the middle column 2 at its outer end. The main sleeve 5-1 has an inner core plate 7 that is slidably installed in the inner hole of the telescopic sleeve 5-2 with both ends locked in the inner end. The telescopic sleeve 5-2 has a damping material 8 installed in the inner hole.

[0022] The inner end of the connecting plate 6 has a baffle 6-1 that is clearance-fitted with the inner hole of the telescopic sleeve 5-2. The outer diameter of the baffle 6-1 is larger than the inner diameter of the outer retaining ring 12. The outer end of the connecting plate 6 extends out of the outer retaining ring 12 and is fixedly connected to the intermediate column 2.

[0023] The inner core plate 7 has end plates 7-1 fixedly connected to both ends, which are in clearance fit with the inner hole of the telescopic sleeve 5-2. The outer diameter of the end plate 7-1 is larger than the inner diameter of the inner retaining ring 11.

[0024] The inner core plate 7 is preferably made of low yield point steel, such as LY100, LY160, LY225, etc.; the damping material 8 is latex or epoxy resin, or a spring can be used as the damping material 8.

[0025] During use, the displacement of the middle column 2 in different rows of support components under wind load causes the tie rod 5 to be continuously subjected to tensile and compressive forces, which in turn causes the connecting plate 6 to move in the same direction. The connecting plate 6 compresses the damping material 8, and the damping materials 8 on both sides compress the inner core plate 7. The inner core plate 7 buckles but does not yield due to the constraint of the main sleeve 5-1. In this way, the buckling of the inner core plate 7 and the repeated compression of the damping material 8 dissipate the vibration energy of the support components, reduce the vibration response of the structure, and thus achieve the effect of vibration reduction and suppression.

[0026] When the connecting plate 6 undergoes reverse displacement, the inner core plate 7 is stretched by the action of the inner retaining ring 11 and the telescopic sleeve 5-2. The inner core plate 7 is repeatedly stretched, thereby dissipating vibration energy, reducing the vibration response of the structure, and achieving the effect of vibration reduction and suppression.

[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A flexible photovoltaic support system, comprising multiple rows of support components, wherein each support component includes end columns (1) spaced apart and fixed to the ground, and several intermediate columns (2) are arranged between the end columns (1), prestressed steel strands (3) are connected between the end columns (1) and the intermediate columns (2) and between adjacent intermediate columns (2), and a diagonal cable (4) fixed to the ground and placed outwards is connected to the upper end of each end column (1), characterized in that: A tie rod (5) is connected between the middle column (2) of the adjacent support assembly. The tie rod (5) includes a main sleeve (5-1). Telescopic sleeves (5-2) are slidably connected to the inner holes at both ends of the main sleeve (5-1). A connecting plate (6) is slidably provided at the outer end of the telescopic sleeve (5-2) and fixed to the middle column (2). An inner core plate (7) with both ends locked in the inner end of the telescopic sleeve (5-2) is slidably provided in the inner hole of the main sleeve (5-1). A damping material (8) is provided in the inner hole of the telescopic sleeve (5-2).

2. The flexible photovoltaic support system as described in claim 1, characterized in that: Limiting rings (9) are fixed on the inner walls of the two ends of the main sleeve (5-1). The outer circumference of the telescopic sleeve (5-2) is in clearance fit with the limiting rings (9). A guide ring (10) is fixed on the outer circumference of the inner end of the telescopic sleeve (5-2) and is in clearance fit with the inner hole of the main sleeve (5-1). An inner retaining ring (11) is fixed on the inner wall of the inner end of the telescopic sleeve (5-2). An outer retaining ring (12) is fixed on the inner wall of the outer end of the telescopic sleeve (5-2).

3. The flexible photovoltaic support system as described in claim 2, characterized in that: The inner end of the connecting plate (6) has a baffle (6-1) that is clearance-fitted with the inner hole of the telescopic sleeve (5-2). The outer diameter of the baffle (6-1) is larger than the inner diameter of the outer retaining ring (12). The outer end of the connecting plate (6) extends out of the outer retaining ring (12) and is fixedly connected to the middle column (2).

4. The flexible photovoltaic support system as described in claim 3, characterized in that: The inner core plate (7) is fixed at both ends with end plates (7-1) that are in clearance fit with the inner hole of the telescopic sleeve (5-2). The outer diameter of the end plate (7-1) is larger than the inner diameter of the inner retaining ring (11).

5. The flexible photovoltaic support system as described in claim 1, characterized in that: One end of the diagonal brace (5) is connected to the bottom of the middle column (2), and the other end of the diagonal brace (5) is connected to the middle of the adjacent middle column (2).

6. The flexible photovoltaic support system as described in claim 1, characterized in that: The inner core plate (7) is made of low yield point steel, and the damping material (8) is latex or epoxy resin.

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