Photovoltaic damping support based on friction energy dissipation, photovoltaic device and photovoltaic system

Abstract

The utility model discloses a photovoltaic damping support, photovoltaic device and photovoltaic system based on friction energy consumption belongs to photovoltaic power generation equipment technical field, this wind -resisting damping photovoltaic support includes stand and slope support, the lower extreme of stand is connected with base, and the upper end of stand sets up inclined beam, and the inclined beam is connected with purlin, and is connected photovoltaic module through purlin, and two stands of adjacent are connected through slope support, the slope support includes fixed link, sliding link and friction energy consumption element, and the friction energy consumption element includes sliding slot and fastener, the sliding slot sets up on friction energy consumption element, and the sliding direction of sliding slot sets along the main stress direction of photovoltaic support, the fastener passes through sliding slot and makes friction energy consumption element connect with fixed link, or / and the one end of sliding link, and the other end of fixed link and sliding link is connected stand and inclined beam respectively. Friction energy consumption element generates friction slip and does work to consume and absorb the energy of load input, provides additional damping for structure to reduce structural response effectively, when encounters extreme load, and the self -lock of friction slip reaches damper limit value to prevent structure collapse.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation equipment technology, specifically a photovoltaic vibration damping bracket, photovoltaic device, and photovoltaic system based on friction energy dissipation. Background Technology

[0002] In modern photovoltaic (PV) power generation systems, the PV support structure, as the core structure supporting PV modules, directly affects the overall system's operating efficiency and lifespan. Meanwhile, the diagonal bracing, as a crucial component for both vertical load-bearing and horizontal lateral resistance, faces numerous challenges in practical applications.

[0003] Existing photovoltaic (PV) support structures often feature diagonal braces with large spans and slenderness ratios, making them prone to buckling instability under compression. These braces represent areas of concentrated deformation. While optimization of cross-sectional design and connection methods have improved the buckling resistance of the braces to some extent, these methods still cannot prevent brace failure under extreme loads and the resulting structural overturning. Furthermore, traditional rigid bracing structures lack effective energy dissipation mechanisms, leading to slow vibration decay, significant fatigue issues, and severely compromised structural safety.

[0004] To address the aforementioned issues, this invention proposes a photovoltaic support vibration reduction system based on friction energy dissipation elements, replacing traditional rigid bracing with friction energy dissipation elements that have phased operation characteristics, thereby improving the disaster resistance performance of the photovoltaic support system. Utility Model Content

[0005] To address the shortcomings of existing photovoltaic (PV) support systems in terms of wind resistance and vibration damping performance, especially the problem of structural deformation or damage under extreme weather conditions due to wind loads or seismic forces, this invention provides a PV vibration damping support, PV device, and PV system based on friction energy dissipation. This system effectively enhances the wind resistance and vibration damping performance of the PV support by introducing friction energy dissipation components, solving the stability problem of existing PV supports in complex environments.

[0006] This utility model is achieved through the following technical solution:

[0007] A vibration-damping photovoltaic support based on frictional energy dissipation includes columns and diagonal braces;

[0008] Multiple columns are arranged in an array. The lower end of the columns is connected to the foundation, and the upper end of the columns is equipped with inclined beams. The inclined beams are connected to purlins and photovoltaic modules are connected through the purlins. Adjacent columns are connected by diagonal braces.

[0009] The diagonal brace includes a fixed rod, a sliding rod, and a friction energy dissipation element. The friction energy dissipation element is provided with a sliding groove, and the sliding direction of the sliding groove is set along the main force direction of the photovoltaic bracket. Fasteners pass through the sliding groove to connect the friction energy dissipation element to one end of the fixed rod, or / and the sliding rod. The other ends of the fixed rod and the sliding rod are respectively connected to the column and the diagonal beam.

[0010] Preferably, the friction energy dissipation element is a C-shaped profile, and the web, upper flange and lower flange of the friction energy dissipation element are all provided with grooves.

[0011] Preferably, both ends of the friction energy dissipation element are provided with sliding grooves, and the fixed rod and the sliding rod are respectively connected to the friction energy dissipation element through the sliding grooves.

[0012] Preferably, a friction plate is provided between the friction energy dissipation element and the fixed rod, and / or the sliding rod.

[0013] Preferably, the friction pad is provided with friction patterns.

[0014] Preferably, the two ends of the friction energy dissipation element are respectively inserted into the fixed rod and the sliding rod.

[0015] Preferably, the fixed rod is connected to the column by a clamp, and the sliding rod is connected to the inclined beam.

[0016] Preferably, the fixed rod and the sliding rod have a gap at the end near the friction energy dissipation element.

[0017] A photovoltaic device includes a photovoltaic module and a wind-resistant and vibration-damping photovoltaic support based on a friction energy dissipation element, wherein the photovoltaic module is disposed on top of the wind-resistant and vibration-damping photovoltaic support.

[0018] A photovoltaic system includes the aforementioned photovoltaic device.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] The photovoltaic vibration damping bracket based on friction energy dissipation provided in this application significantly enhances the stability of the photovoltaic bracket and reduces structural deformation under normal operating loads through the additional stiffness of the friction energy dissipation element. Under medium or large loads, the friction energy dissipation element dissipates energy through frictional slippage, providing additional damping to the structure, effectively reducing structural response and improving the wind resistance and vibration reduction performance of the photovoltaic bracket. Furthermore, this photovoltaic vibration damping bracket simplifies the structural design of the photovoltaic bracket, reduces installation and maintenance costs, is more economical than traditional diagonal bracing, and improves the overall performance of the system.

[0021] Furthermore, the friction plates of the friction energy dissipation components are made of highly wear-resistant materials, which can adapt to complex outdoor environments and extend service life. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the photovoltaic vibration damping bracket of this utility model;

[0024] Figure 2 This is a front view of the friction energy dissipation element of this utility model;

[0025] Figure 3 This is a schematic diagram of the back of the friction energy dissipation element of this utility model;

[0026] Figure 4 This is a schematic diagram of the friction energy dissipation element of this utility model;

[0027] Figure 5 This is a schematic diagram of the fixing rod of this utility model;

[0028] Figure 6 This is a schematic diagram of the friction plate of this utility model.

[0029] In the diagram: 1-Column, 2-Clamping rod, 3-Diagonal beam, 4-Diagonal brace, 5-Friction energy dissipation element, 6-Connector, 7-Sliding rod, 8-Bolt, 9-Friction plate, 10-Slide groove, 11-Round hole. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] A vibration-damping photovoltaic support based on friction energy dissipation includes columns and diagonal braces.

[0033] Multiple columns are arranged in an array. The lower end of the columns is connected to the foundation, and the upper end of the columns is equipped with inclined beams. The inclined beams are connected to purlins and photovoltaic modules are connected through the purlins. Adjacent columns are connected by diagonal braces. One end of the diagonal brace is connected to the lower end of the column, and the other end of the diagonal brace is connected to the inclined beam.

[0034] The diagonal brace 4 includes a fixed rod, a sliding rod, and a friction energy dissipation element;

[0035] One end of the fixed rod is connected to the column, and the other end is connected to one end of the friction energy dissipation element. The other end of the friction energy dissipation element is connected to one end of the sliding rod, and the other end of the sliding rod is connected to the inclined beam.

[0036] The fixed rod, and / or sliding rod, is connected to the friction energy dissipation element via a sliding structure.

[0037] The sliding structure includes a groove and a fastener disposed on the friction energy dissipation element. The groove is disposed on the friction energy dissipation element and the sliding direction of the groove is set along the main force direction of the photovoltaic bracket. The fastener passes through the groove to connect the friction energy dissipation element to the fixed rod and / or the sliding rod.

[0038] In some embodiments, both the fixed rod and the sliding rod are connected to the friction energy dissipation element via a sliding structure.

[0039] The friction energy dissipation element is a C-shaped profile, and at least one side wall of the friction energy dissipation element is provided with a groove; preferably, each side wall is provided with a groove, the groove is provided along the length direction of the diagonal brace, the fixed rod and the sliding rod are inserted into both ends of the friction energy dissipation element, and the bolt passes through the groove to connect the friction energy dissipation element and the fixed rod.

[0040] In another embodiment, the fixed rod is fixedly connected to the friction energy dissipation element, that is, the fixed rod and the friction energy dissipation element are directly rigidly connected by bolts, and the other end of the friction energy dissipation element is connected to the sliding rod through a groove.

[0041] In some embodiments, a friction plate is provided between the friction energy dissipation element and the fixed rod and the sliding rod.

[0042] The surface of the friction plate is provided with a friction structure to increase friction.

[0043] Optionally, the friction structure may have raised dots or textures, such as ripples, on the surface of the friction plate.

[0044] The wind-resistant and vibration-damping photovoltaic (PV) support system of this application provides additional stiffness to the PV support system and prevents damper slippage through the frictional force generated between the sliding rod and the frictional energy-dissipating element. By performing work through frictional slippage, the energy input from the load is consumed and absorbed, providing additional damping to the PV support system and effectively reducing structural response. The fixed rod and sliding rod are designed with sufficient structural stiffness to ensure the stable transmission of the damping function of the frictional energy-dissipating element under different load conditions. This achieves guaranteed structural stiffness under normal operating loads and effective absorption of input energy through the frictional energy-dissipating mechanism under medium or large loads, thereby improving the wind resistance and vibration reduction performance of the PV support system.

[0045] Furthermore, the structural parameters of the friction energy dissipation element (including the dimensions of the flat cuboid, the material of the friction plate, and the preset friction force) can be optimized according to specific engineering requirements to adapt to the wind resistance and vibration reduction requirements of different photovoltaic support systems.

[0046] Furthermore, the length of the groove on the friction energy dissipation element is rationally designed so that it self-locks after reaching the limit when encountering extreme loads, thus preventing structural collapse.

[0047] Example 1

[0048] like Figure 1-3 As shown, a vibration-damping photovoltaic bracket based on friction energy dissipation includes a friction energy dissipation element 5, a fixed rod 6, and a sliding rod 7. One end of the fixed rod 6 is connected to the friction energy dissipation element 5, and the other end is connected to the lower end of the column 1 through a fastener. One end of the sliding rod 7 is connected to the friction energy dissipation element 5, and the other end is connected to the upper end of the column 1 through a fastener.

[0049] The fixed rod 6 and the sliding rod 7 are made of profiles with a C-shaped cross-section. The two parallel upper and lower walls are the upper and lower flanges, respectively, and the side walls are webs. The upper and lower ends of the webs are connected to the same end of the upper and lower flanges, respectively.

[0050] The friction energy dissipation element 5 adopts a flat C-shaped structure design, and its inner wall is fitted with a friction plate 9.

[0051] A circular hole is formed in the web of the left end of the fixing rod 6, and the circular hole is connected to the column 1 through the clamp 2; a circular hole is formed in the web of the right end of the fixing rod 6, and a circular hole is formed at the upper and lower flanges respectively, and they are located at the same cross-sectional position; the friction energy dissipation element 5 is provided with three circular holes, and the three circular holes of the friction energy dissipation element 5 correspond to the circular holes at the right end of the fixing rod 6. The right end of the fixing rod is inserted into the friction energy dissipation element 5, and the circular holes of the friction energy dissipation element 5 and the circular holes of the fixing rod are connected by bolts 8.

[0052] The other end of the friction energy dissipation element 5 has multiple strip grooves 10 along the force direction. These grooves 10 are respectively located on the web and upper and lower flanges. The top of the sliding rod has three circular holes, and the end of the sliding rod is inserted into the friction energy dissipation element 5. The three strip grooves are connected to the three circular holes by bolts 8, providing preload to the entire friction energy dissipation element 5. Friction plates 9 are provided between the inner wall of the friction energy dissipation element 5 and the fixed rod and sliding rod, with bolts passing through the friction plates, forming a controllable friction energy dissipation mechanism. Figure 6 As shown.

[0053] The working principle of the friction energy dissipation element is to dissipate energy through the friction between the fixed rod 6 and the friction energy dissipation element 5. Under normal operating loads, the friction energy dissipation element 5 provides additional stiffness to the structure while preventing slippage. Under medium or large loads, the friction energy dissipation element 5 and the sliding rod undergo frictional slippage and perform work to consume and absorb the energy input by the load, providing additional damping for the photovoltaic support and effectively reducing the structural response. The length of the through groove 10 in the friction energy dissipation element 5 is finite. When encountering extreme loads, it self-locks after reaching the limit of slippage, preventing structural collapse.

[0054] The friction plate 9 of the friction energy dissipation element 5 is made of a highly wear-resistant material to extend its service life and ensure the stability of friction. The surface of the friction plate 9 is specially treated to improve the coefficient of friction and reduce wear. The outer shell of the friction energy dissipation element 5 is made of high-strength aluminum alloy, which has good weather resistance and corrosion resistance, and can adapt to complex outdoor environments.

[0055] In summary, this utility model provides an efficient and reliable wind-resistant vibration reduction solution by introducing a friction energy dissipation element 5. It is suitable for the support systems of various photovoltaic power generation equipment, and can significantly improve the stability and safety of photovoltaic supports. Its simple structure makes it easy for construction personnel to install on site, thus enhancing the economic efficiency of the structure.

[0056] Example 2

[0057] A photovoltaic device includes a photovoltaic module and a vibration-damping photovoltaic support based on frictional energy dissipation as described in Example 1.

[0058] The photovoltaic module includes a photovoltaic frame and photovoltaic panels disposed within the photovoltaic frame. The photovoltaic frame is fixed to the top of the wind-resistant and vibration-damping photovoltaic support and is installed at an angle.

[0059] Example 3

[0060] A photovoltaic system includes the photovoltaic device of Example 2, an inverter, an energy storage device, a controller, a power distribution system, and a monitoring system.

[0061] Inverters convert the direct current (DC) generated by photovoltaic modules into alternating current (AC) to meet the electricity needs of households or the power grid.

[0062] Energy storage devices store the electrical energy generated by photovoltaic devices.

[0063] The monitoring system monitors data such as power generation, voltage, current, and equipment status in real time, and supports remote fault diagnosis and maintenance.

[0064] The above content is only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed in this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A photovoltaic vibration damping bracket based on frictional energy dissipation, characterized in that, Including columns and diagonal braces; Multiple columns are arranged in an array. The lower end of the columns is connected to the foundation, and the upper end of the columns is equipped with inclined beams. The inclined beams are connected to purlins and photovoltaic modules are connected through the purlins. Adjacent columns are connected by diagonal braces. The diagonal brace includes a fixed rod, a sliding rod, and a friction energy dissipation element. The friction energy dissipation element is provided with a sliding groove, and the sliding direction of the sliding groove is set along the main force direction of the photovoltaic bracket. Fasteners pass through the sliding groove to connect the friction energy dissipation element to one end of the fixed rod, or / and the sliding rod. The other ends of the fixed rod and the sliding rod are respectively connected to the column and the diagonal beam.

2. The photovoltaic vibration damping bracket based on frictional energy dissipation according to claim 1, characterized in that, The friction energy dissipation element is a C-shaped profile, and the web, upper flange and lower flange of the friction energy dissipation element are all provided with sliding grooves.

3. A photovoltaic vibration damping bracket based on frictional energy dissipation according to claim 2, characterized in that, Both ends of the friction energy dissipation element are provided with sliding grooves, and the fixed rod and the sliding rod are respectively connected to the friction energy dissipation element through the sliding grooves.

4. A photovoltaic vibration damping bracket based on frictional energy dissipation according to claim 1, characterized in that, A friction plate is provided between the friction energy dissipation element and the fixed rod, and / or the sliding rod.

5. A photovoltaic vibration damping bracket based on frictional energy dissipation according to claim 4, characterized in that, The friction pad is provided with friction patterns.

6. A photovoltaic vibration damping bracket based on frictional energy dissipation according to claim 1, characterized in that, The two ends of the friction energy dissipation element are respectively inserted into the fixed rod and the sliding rod.

7. A photovoltaic vibration damping bracket based on frictional energy dissipation according to claim 1, characterized in that, The fixed rod is connected to the column by a clamp, and the sliding rod is connected to the inclined beam.

8. A photovoltaic vibration damping bracket based on frictional energy dissipation according to claim 1, characterized in that, The fixed rod and the sliding rod have a gap at the end near the friction energy dissipation element.

9. A photovoltaic device, characterized in that, It includes a photovoltaic module and a photovoltaic vibration damping bracket based on frictional energy dissipation as described in any one of claims 1-8, wherein the photovoltaic module is disposed on top of the photovoltaic vibration damping bracket.

10. A photovoltaic system, characterized in that, Includes the photovoltaic device as described in claim 9.

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