Photovoltaic support with elastic supporting structure
Through the three-stretch flexible bracket structure and shock-absorbing pressure spring design, the vibration and swaying of the flexible photovoltaic bracket under strong winds is solved, and effective protection of photovoltaic modules and improved power generation efficiency are achieved.
Patent Information
- Application Number
- CN202421896435.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-06
AI Technical Summary
柔性光伏支架在强风条件下容易发生振动和摇摆,导致光伏组件损坏,影响发电效率和使用寿命。
A flexible bracket structure of three cables is adopted, including two main cables and one secondary cable, forming a stable triangular structure, and vibration-absorbing pressure springs and spring guide columns are installed on both sides of the main cable pressure plate to form a bidirectional vibration-absorbing buffer structure, which consumes cable vibration energy and reduces the negative impact of wind load on photovoltaic modules.
It effectively reduces the vibration and sway of the wind load on the photovoltaic module, improves wind and earthquake resistance, protects the photovoltaic module, and extends the service life of the bracket system.
Smart Images
Figure CN223079970U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a solar photovoltaic technology equipment, in particular to a flexible photovoltaic bracket which can effectively reduce and absorb the vibration of photovoltaic modules. Background Art
[0002] Due to its advantages such as large span and strong terrain adaptability, the flexible photovoltaic bracket is widely used in complex terrain conditions such as mountains, deserts, forests and ponds, thus expanding the application range of the solar photovoltaic power generation system and increasing the utilization rate of the environmental space. However, the flexible photovoltaic bracket also has the disadvantage of small stiffness and is a typical wind-sensitive structure. When the wind speed is relatively high, the flexible photovoltaic bracket is subjected to the buffeting force from the wind speed, forming irregular oscillations or large swings of the photovoltaic modules. More seriously, it may cause structural resonance. This kind of vibration and swing of the photovoltaic modules caused by a relatively high wind speed will lead to inconsistent deformations between the connection points of the photovoltaic modules and the cable of the bracket. The photovoltaic modules are subjected to torsion and shear forces, increasing the number of hidden cracks in the battery chips of the photovoltaic modules, greatly reducing the power generation of the photovoltaic system and increasing the use insecurity. At the same time, this kind of vibration and swing will also accelerate the fatigue of the cable in use and affect the service life of the cable and the entire bracket system. Content of the Utility Model
[0003] Aiming at the above deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a photovoltaic bracket with an elastic support structure that can effectively slow down the damage to the photovoltaic modules caused by the vibration of the cable and the swing of the photovoltaic modules.
[0004] To solve the above technical problem, the photovoltaic bracket with an elastic support structure of the utility model includes a column, a cable beam supported on the column, two main cables are tensioned on the cable beam, and auxiliary cables are also tensioned on the cable beam or the column. A plurality of photovoltaic module plates are installed on the main cables and the auxiliary cables. The photovoltaic module plates are fixedly installed on the module longitudinal beams. A cable support frame and a main cable pressing plate are fixedly installed on the two main cables. The cable support frame and the main cable pressing plate are fixedly connected. The cable support frame is also fixedly installed with an auxiliary cable. Shock-absorbing compression springs are supported on both sides of the main cable pressing plate. The spring guide posts are sequentially and movably passed through a shock-absorbing compression spring, the main cable pressing plate and another shock-absorbing compression spring and installed on the module longitudinal beam.
[0005] After adopting the above structure, since two main cables and one auxiliary cable are used as the tension cables for supporting the photovoltaic modules, the three-cable flexible support structure not only has wide adaptability, flexibility in use and effective safety, and is especially suitable for mountainous areas, hilly areas and areas with large undulations, being unaffected by factors such as the height of vegetation, but also the three cables form a stable triangular structure through the cable support frame and the main cable pressure plate, changing from a flexible structure to a rigid structure, changing its dynamic characteristics, and being more capable of withstanding the longitudinal and lateral forces formed by strong winds or typhoons, having better wind and earthquake resistance performance. Also, since shock-absorbing springs are supported on both sides of the main cable pressure plate, and the spring guide posts pass through the main cable pressure plate and the shock-absorbing springs movably and are installed on the component longitudinal beam, the photovoltaic module plate is supported on the cable through the buffer structure formed by the shock-absorbing springs to consume the energy of the cable vibration, thereby reducing the vibration of the cable on the flexible support caused by the wind load, effectively reducing the negative impact of the cable wind-induced vibration on the photovoltaic module, and improving the protection of the photovoltaic module; and shock-absorbing springs are arranged on both sides of the main cable pressure plate, which can effectively reduce and block the vibration from the two side directions of the pressure plate. When strong wind presses down or lifts the surface or the back of the photovoltaic module, this structure can effectively reduce the negative impact of wind vibration, form a two-way shock-absorbing and buffering structure, reduce the impact of wind load on the cable and the photovoltaic panel, and reduce the destructive force of the wind load.
[0006] In a preferred embodiment of the present utility model, the main cable pressure plate is in a frame structure, and two cable support frames are symmetrically and fixedly installed on both side edges of the main cable pressure plate in the frame structure. The main cable is fixedly clamped between the cable support frame and the main cable pressure plate, and the auxiliary cable is fixedly connected to the cable support frame through the auxiliary cable gland. Guide post holes for movably passing the spring guide posts are arranged at the four corner positions of the main cable pressure plate in the rectangular frame structure, and each spring guide post movably passes through the corresponding main cable pressure plate and two shock-absorbing springs; the shock-absorbing spring on one side of the main cable pressure plate is supported between the main cable pressure plate and the component longitudinal beam, and the shock-absorbing spring on the other side of the main cable pressure plate is supported between the main cable pressure plate and the head of the spring guide post. It can form a stable photovoltaic module support structure and has a good two-way shock-absorbing effect.
[0007] In a preferred embodiment of the present utility model, the spring guide post includes a guide post head, a smooth rod portion and a threaded portion. The spring guide post is fixedly connected to the component longitudinal beam through the threaded portion, and the shock-absorbing spring is sleeved on the smooth rod portion. The shock-absorbing spring is a helical compression spring. It can form a two-way shock-absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The following further describes in detail the photovoltaic support with an elastic support structure of the present utility model in conjunction with the drawings and specific embodiments.
[0009] Figure 1 is a partial three-dimensional structural schematic diagram of a specific embodiment of the photovoltaic support with an elastic support structure of the present utility model;
[0010] Figure 2 is Figure 1 a schematic cross-sectional view of the installation structure of a photovoltaic module panel in
[0011] Figure 3 is Figure 2 the view from direction A of
[0012] Figure 4 is Figure 2 the installation structure diagram of the cable support bracket and the main cable pressing plate in
[0013] Figure 5 is Figure 4 the left view structure diagram of
[0014] Figure 6 is Figure 2 the installation structure diagram of the shock-absorbing compression spring in
[0015] Figure 7 is Figure 6 the structure diagram of the spring guide post in
[0016] In the figure, 1 - column, 2 - cable, 3 - cable cross beam, 4 - main cable, 5 - secondary cable, 6 - photovoltaic module panel, 7 - guide post nut, 8 - module cross beam, 9 - module longitudinal beam, 10 - main cable pressing plate, 11 - cable support bracket, 12 - spring guide post, 13 - shock-absorbing compression spring, 14 - secondary cable gland. Specific implementation manners
[0017] As Figure 1 shown, a photovoltaic bracket with an elastic support structure includes two relatively arranged columns 1 ( Figure 1 a partial three-dimensional structure diagram including one column is given in , and the other relatively arranged column is omitted), the column 1 is a steel pile deeply embedded in the foundation, a cable 2 is obliquely pulled outwards on the column 1, a cable cross beam 3 is fixedly installed on the top of the column 1, and the cable cross beam 3 can also be rotatably supported on the top of the column 1 so as to adjust the pitch angle of the photovoltaic module. Two main cables 4 are tensioned between two relatively arranged cable cross beams 3, and a secondary cable 5 is also tensioned between two relatively arranged columns 1. The secondary cable 5 can also be tensioned between the cable cross beams 3, but it must be ensured that the two main cables 4 and the secondary cable 5 are located at the three vertices of a triangle. The main cable 4 and the secondary cable 5 are carbon steel wire ropes. A plurality of photovoltaic module panels 6 are sequentially installed along the length direction of the main cable 4.
[0018] As Figure 2 , Figure 3As shown, the photovoltaic module panel 6 is installed on two mutually parallel and horizontally arranged module cross beams 8, and these two module cross beams 8 are fixedly installed on two mutually parallel and longitudinally arranged module longitudinal beams 9. The module cross beam 8 and the module longitudinal beam 9 are fixedly connected perpendicular to each other to form a module support body, and this structure is the same as the prior art.
[0019] The cable support frame 11 includes two bifurcated rod arms. Two main cables 4 are fixedly installed on the upper ends of the two rod arms of the cable support frame 11 through main cable pressing plates 10, and the auxiliary cable 5 will be fixedly installed on the lower end of the cable support frame 11 through an auxiliary cable gland 14. Through this structure, the two main cables 4 and one auxiliary cable 5 are fixedly connected into a stable triangular structure, thereby enhancing the stability and structural stiffness of the cable support system.
[0020] Shock-absorbing compression springs 13 are supported on both sides of the main cable pressing plate 10. The spring guide post 12 sequentially passes through the shock-absorbing compression spring 13 on the lower side of the main cable pressing plate 10, the main cable pressing plate 10, and the shock-absorbing compression spring 13 on the upper side of the main cable pressing plate 10 and is fixedly screwed to the module longitudinal beam 9 through a guide post nut 7. The spring guide post 12 passes through the corresponding guide post holes on the main cable pressing plate 10 with a clearance. The shock-absorbing compression spring 13 is a helical compression spring. The shock-absorbing compression spring 13 on the upper side of the main cable pressing plate 10 is supported between the main cable pressing plate 10 and the module longitudinal beam 9, and the shock-absorbing compression spring 13 on the lower side of the main cable pressing plate 10 is supported between the main cable pressing plate 10 and the head of the spring guide post 12, and the shock-absorbing compression springs 13 on both sides of the main cable pressing plate 10 all have a certain pre-tightening force.
[0021] As Figure 4 、 Figure 5 As shown, the main cable pressing plate 10 has a rectangular frame structure. Two cable support frames 11 are respectively fixedly installed on the two side frame bars of the main cable pressing plate 10. The upper ends of the rod arms of the two cable support frames 11 are fixedly clamped on the main cable 4 with the main cable pressing plate 10, and the lower ends of the two cable support frames 11 are fixedly installed on the corresponding auxiliary cable 5. Four guide post holes are provided at the four corner positions of the rectangular main cable pressing plate 10. The guide post holes are used to pass through the spring guide post 12 movably, that is, four spring guide posts 12 are slidably sleeved on one main cable pressing plate 10, and each spring guide post 12 is respectively sleeved with two shock-absorbing compression springs 13.
[0022] As Figure 6 、 Figure 7 As shown, the spring guide post 12 has a stepped rod-like structure. It includes a guide post head, a smooth rod part, and a threaded part at the other end. The threaded part is used to screw the guide post nut 7 to fixedly install the spring guide post 12 on the module longitudinal beam 9. A sliding sleeve is embedded in the inner hole wall of the guide post hole provided on the main cable pressing plate 10 to ensure that the spring guide post 12 can slide along the hole center line in the guide post hole.
[0023] The above - disclosed preferred embodiments of the present utility model are only used to help illustrate the present utility model. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
Claims
1. A photovoltaic support with an elastic support structure, comprising a column (1), a cable beam (3) supported on the column (1), two main cables (4) tensioned on the cable beam (3), and an auxiliary cable (5) also tensioned on the cable beam (3) or the column (1). A number of photovoltaic module panels (6) are installed on the main cables (4) and the auxiliary cable (5), and it is characterized in that: The photovoltaic module panel (6) is fixedly installed on the module longitudinal beam (9). A cable support frame (11) and a main cable pressing plate (10) are fixedly installed on the two main cables (4). The cable support frame (11) and the main cable pressing plate (10) are fixedly connected. The cable support frame (11) is also fixedly installed with a secondary cable (5); both sides of the main cable pressing plate (10) are supported by shock-absorbing compression springs (13). The spring guide posts (12) are sequentially and movably passed through a shock-absorbing compression spring (13), the main cable pressing plate (10), and the other shock-absorbing compression spring (13) and installed on the module longitudinal beam (9).
2. The photovoltaic support with an elastic support structure according to claim 1, characterized in that: The main cable pressing plate (10) has a frame-shaped structure. Two cable support frames (11) are symmetrically and fixedly installed on both side edges of the frame-shaped main cable pressing plate (10). The main cable (4) is fixedly clamped between the cable support frame (11) and the main cable pressing plate (10). The secondary cable (5) is fixedly connected to the cable support frame (11) through a secondary cable cover (14).
3. The photovoltaic support with an elastic support structure according to claim 1 or 2, characterized in that: Guide post holes for movably passing through the spring guide posts (12) are provided at the four corner positions of the main cable pressing plate (10) with a rectangular frame structure. Each spring guide post (12) movably passes through the corresponding main cable pressing plate (10) and two shock-absorbing compression springs (13); the shock-absorbing compression spring (13) on one side of the main cable pressing plate (10) is supported between the main cable pressing plate (10) and the module longitudinal beam (9), and the shock-absorbing compression spring (13) on the other side of the main cable pressing plate (10) is supported between the main cable pressing plate (10) and the head of the spring guide post (12).
4. The photovoltaic support with an elastic support structure according to claim 1, wherein: The spring guide post (12) includes a guide post head, a smooth rod portion, and a threaded portion. The spring guide post (12) is fixedly connected to the module longitudinal beam (9) through the threaded portion, and the shock-absorbing compression spring (13) is sleeved on the smooth rod portion.
5. The photovoltaic support with an elastic support structure according to claim 4, wherein: The shock-absorbing compression spring (13) is a helical compression spring.