Wind-resistant vibration-damping photovoltaic support

Abstract

The utility model discloses a wind-resistant vibration-damping photovoltaic support which comprises a stand column and an inhaul cable cross beam, a plurality of photovoltaic assembly plates are installed on an assembly inhaul cable, anti-rolling balance wings are further installed on the assembly inhaul cable, and the anti-rolling balance wings are located between every two adjacent photovoltaic assembly plates. The anti-rolling balance wings comprise inhaul cable connecting arms fixedly installed on the two assembly inhaul cables, rib plate supporting shafts are rotatably supported on the inhaul cable connecting arms, balance wing rib plates are fixedly installed on the rib plate supporting shafts, the outer ends of the balance wing rib plates are fixedly wrapped with balance wing skin, and the balance wing skin is an arc-shaped flat barrel face which is symmetrically convex outwards. The two ends of the rib plate supporting shaft are rotatably supported on the corresponding inhaul cable connecting arms, a balance wing adjusting disc is further fixedly installed at the extending end of the rib plate supporting shaft, and the balance wing adjusting disc is adjustably locked on the corresponding inhaul cable connecting arms. The wind-resistant and vibration-damping photovoltaic support can effectively restrain vibration of the steel inhaul cable and swinging and tilting of the photovoltaic assembly, the service life is prolonged, and the power generation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a structure of a solar photovoltaic bracket, in particular to a flexible photovoltaic bracket which can effectively reduce the wind vibration and sway generated by the wind speed on the photovoltaic module. Background Art

[0002] Although the flexible photovoltaic bracket has the advantages of large span and strong terrain adaptability, it also has the deficiency of small stiffness. The flexible photovoltaic bracket is a typical wind-sensitive structure. When the wind speed is relatively high, it will cause the vibration and sway of the photovoltaic module, resulting in uncoordinated deformation between the connection points of the photovoltaic module and the cable of the bracket. The photovoltaic module bears the torsional and shear effects, increasing the number of hidden cracks in the photovoltaic module battery chips, significantly reducing the power generation of the photovoltaic system, and increasing the use insecurity. The vibration and sway of the flexible photovoltaic bracket are also related to local meteorological data and environmental factors such as seasons. The wind vibration of the flexible photovoltaic bracket is not only related to the wind speed, but also related to factors such as the wind direction and the wind attack angle. Therefore, it is urgent to design a flexible photovoltaic bracket that can resist strong winds or typhoons to improve the wind resistance stability of the bracket system and ensure the power generation efficiency of the photovoltaic power generation system. Summary of the Utility Model

[0003] Aiming at the above-mentioned deficiencies existing in the prior art, the technical problem to be solved by the utility model is to provide an anti-wind and vibration-damping photovoltaic bracket that can effectively suppress the vibration of the steel cable and the sway of the photovoltaic module, so as to extend the service life of the photovoltaic power generation system and improve the power generation efficiency of the photovoltaic power generation system.

[0004] To solve the above technical problem, the anti-wind and vibration-damping photovoltaic bracket of the utility model includes a column, and a cable beam supported on the column. Two component cables are tensioned on the cable beam. A plurality of photovoltaic module plates are installed on the component cables. A sway reduction balance wing is also installed on the component cables. The sway reduction balance wing is located between two adjacent photovoltaic module plates. The sway reduction balance wing includes a cable connection arm fixedly installed on the two component cables. A rib plate support shaft is rotatably supported on the cable connection arm. A balance wing rib plate is fixedly installed on the rib plate support shaft. The outer end of the balance wing rib plate is fixedly covered with a balance wing skin, and the balance wing skin is a symmetrically outwardly convex arc-shaped flat cylindrical surface.

[0005] After adopting the above structure, since the cable is used as the tension cable to support the photovoltaic module, the cable flexible support structure not only has wide adaptability, flexibility in use and effective safety, but is especially suitable for mountainous areas, sloping lands and areas with large undulations, and is not affected by factors such as the height of vegetation. Also, because a damping balance wing is installed between the two main cables, the damping balance wing can effectively enhance the balance and stability of the flexible support system, effectively maintain and stabilize the attitude of the photovoltaic module board in the wind speed, and the balance wing skin is a flat cylindrical surface surrounded by a symmetric outward convex arc. By using the same air flow action on the symmetric upper and lower cylindrical surfaces, the windward attitude of the balance wing in the air flow is stabilized, and the disturbing sway effect of the wind vibration on the cable and the photovoltaic module system is reduced. The above balance wing can determine the number and windward angle of the balance wing according to the installation environment of the photovoltaic power generation system to achieve the best stable and smooth effect.

[0006] In a preferred embodiment of the present invention, both ends of the rib plate support shaft are rotatably supported on the corresponding cable connection arm, and a balance wing adjustment disk is fixedly installed on the outer extending end of the rib plate support shaft, and the balance wing adjustment disk is adjustably locked on the corresponding cable connection arm. Both ends of the rib plate support shaft are rotatably supported on the corresponding cable connection arm through a support shaft sliding sleeve, and the support shaft sliding sleeve is a plastic sliding sleeve, and the plastic sliding sleeve is fixedly embedded in the cable connection arm. A number of equally spaced adjustment disk pin holes are arranged on the balance wing adjustment disk, and the adjustment disk pin passes through the adjustment disk pin hole and is fixedly inserted into the cable connection arm. This structure can conveniently adjust the windward and leeward angles of the balance wing to achieve the best smooth effect.

[0007] In a preferred embodiment of the present invention, the balance wing skin is an elliptical cylindrical structure, and the long axis of the elliptical cylinder is located on the symmetry line of the cable connection arm. The outer end shape of the balance wing rib plate coincides with the inner cylindrical surface of the balance wing skin and is fixedly connected. It can effectively stabilize the attitude of the balance wing in the wind speed.

[0008] In a preferred embodiment of the present invention, at least one photovoltaic module board is arranged on the side of the damping balance wing; the component cable and the stay cable are steel cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The anti-wind and vibration damping photovoltaic support of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0010] Figure 1 is a partial three-dimensional structural schematic diagram of a specific embodiment of the anti-wind and vibration damping photovoltaic support of the present invention;

[0011] Figure 2 is Figure 1 a schematic diagram of the installation positions of the photovoltaic module board and the damping balance wing in

[0012] Figure 3Yes Figure 1 Installation structure diagram of the anti-rolling balance wing in the middle

[0013] Figure 4 Yes Figure 3 Left view of

[0014] Figure 5 Yes Figure 3 Enlarged structure diagram of part I in the middle

[0015] Figure 6 Yes Figure 3 Installation structure diagram of the balance wing rib plate and rib plate support shaft in the middle

[0016] Figure 7 Yes Figure 6 Left view of

[0017] In the figure, 1 - column, 2 - stay cable, 3 - cable crossbeam, 4 - component stay cable, 5 - photovoltaic module panel, 6 - anti-rolling balance wing, 7 - cable connection arm, 8 - rib plate support shaft, 9 - balance wing adjustment disc, 10 - adjustment disc pin, 11 - balance wing rib plate, 12 - balance wing skin, 13 - waist-shaped hole of rib plate, 14 - adjustment disc pin hole, 15 - support shaft sliding sleeve. Specific implementation mode

[0018] As Figure 1 , Figure 2 The anti-wind and vibration-damping photovoltaic support shown, which 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 implanted in the foundation, and a stay cable 2 is obliquely pulled outwards on the column 1. A cable crossbeam 3 is fixedly installed at the top of the column 1, and the cable crossbeam 3 can also be rotatably supported at the top of the column 1 to adjust the pitching angle of the photovoltaic module. Two component stay cables 4 are tensioned between two relatively arranged cable crossbeams 3. The component stay cables 4 and the stay cables 2 are carbon steel wire ropes. Photovoltaic module panels 5 and anti-rolling balance wings 6 are installed at intervals along the length direction of the component stay cables 4. At least one photovoltaic module panel 5 is installed between two adjacent anti-rolling balance wings 6. The interval sequence of the anti-rolling balance wings 6 and the photovoltaic module panels 5 should be designed and determined according to parameters such as the wind speed, wind direction, and windward angle of the installation environment of the photovoltaic power generation system.

[0019] As Figure 3 , Figure 4As shown in the figure, cable connection arms 7 are also fixedly installed on two parallel tensioned component cables 4. Both ends of the cable connection arms 7 are respectively fixedly clamped to the corresponding ends of the component cables 4 through end gland fixing. Both ends of the rib plate support shaft 8 are respectively rotatably supported at the middle positions of adjacent two cable connection arms 7 through support shaft sliding sleeves 15; Three balance rib plates 11 are also fixedly installed on the rib plate support shaft 8. The balance rib plates 11 are located between the two cable connection arms 7. A balance wing skin 12 is fixedly covered on the outer end of the balance rib plates 11. The balance wing skin 12 is made of resin material. The inner wall of the balance wing skin 12 is fixedly connected to the outer end of the balance rib plates 11. The balance wing skin 12 is an elliptical cylinder structure. The major axis of the elliptical cylinder is located on the symmetry line of the cable connection arms 7; The balance wing skin 12 can also be other symmetrically outward convex arc-shaped flat cylinder surfaces. Such as Figure 5 At the outer extended ends of the rib plate support shafts 8 rotatably supported on the cable connection arms 7 as shown in the figure, balance wing adjustment discs 9 are fixedly installed. The balance wing adjustment discs 9 are disc-shaped. The square hole in the center of the disc is sleeved on the square tenon at the outer extended end of the rib plate support shaft 8 and fastened with set screws. A number of adjustment disc pin holes 14 are evenly distributed on the circular disc surface of the balance wing adjustment discs 9. The adjustment disc pin 10 passes through one of the adjustment disc pin holes 14 and is fixedly inserted into the cable connection arm 7; By changing the position of the adjustment disc pin 10 in the adjustment disc pin holes 14 on the balance wing adjustment discs 9, the windward angle of the anti-rolling balance wing 6 can be changed according to the location of the photovoltaic power generation system and the changes in wind direction, wind speed in different seasons, so as to achieve the best stability and balance effect. A support shaft sliding sleeve 15 for rotatably supporting the rib plate support shaft 8 is embedded in the cable connection arm 7. The support shaft sliding sleeve 15 is a plastic sliding sleeve and can also be other corresponding non-metallic sliding sleeves such as nylon.

[0020] Such as Figure 6 、 Figure 7 As shown in the figure, three balance wing rib plates 11 are vertically fixedly installed on the rib plate support shaft 8. The outer ends of the balance wing rib plates 11 are shaped to fit and fixedly connected to the inner cylindrical surface of the balance wing skin 12. Two rib plate waist-shaped holes 13 are symmetrically arranged on the balance wing rib plates 11. The two rib plate waist-shaped holes 13 are located on the same circumference. The center of the circumference is located on the axis of the rib plate support shaft 8. During installation, the component cable 4 passes through the corresponding rib plate waist-shaped holes 13, and the position of the component cable 4 can be adjusted and moved through the rib plate waist-shaped holes 13.

[0021] The balance wing skin 12 is a flat elliptical cylinder structure. The major axis of the elliptical cylinder is located on the symmetry line of the cable connection arms 7. However, the cross-sectional shape of the balance wing skin 12 is not limited to an elliptical cylinder and can also be a flat cylinder structure surrounded by symmetrically outward convex arc-shaped surfaces, such as various outward convex arc-shaped surfaces with the center line of the cable connection arms 7 as the symmetry line. Both of its ends are smooth arc-shaped ends to reduce windward resistance.

[0022] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. According to the content of this specification, many modifications and variations 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 in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

Claims

1. An anti-wind and vibration damping photovoltaic support, comprising a column (1) and a cable beam (3) supported on the column (1). Two component cables (4) are tensioned on the cable beam (3), and a plurality of photovoltaic module panels (5) are installed on the component cables (4), characterized in that: A roll damping balance wing (6) is further installed on the component cable (4). The roll damping balance wing (6) is located between two adjacent photovoltaic component panels (5). The roll damping balance wing (6) includes a cable connecting arm (7) fixedly installed on the two component cables (4). A rib plate support shaft (8) is rotatably supported on the cable connecting arm (7). A balance wing rib plate (11) is fixedly installed on the rib plate support shaft (8). An outer end of the balance wing rib plate (11) is fixedly covered with a balance wing skin (12). The balance wing skin (12) is an arc-shaped flat cylindrical surface that is symmetrically convex outward.

2. The anti-wind and vibration damping photovoltaic support according to claim 1, wherein: Two ends of the rib plate support shaft (8) are rotatably supported on corresponding cable connecting arms (7). A balance wing adjustment disc (9) is further fixedly installed on an outer extending end of the rib plate support shaft (8). The balance wing adjustment disc (9) is adjustably locked to the corresponding cable connecting arm (7).

3. The wind-resistant and vibration-damping photovoltaic support according to claim 1 or 2, characterized in that: Two ends of the rib plate support shaft (8) are rotatably supported on corresponding cable connecting arms (7) through a support shaft sliding sleeve (15). The support shaft sliding sleeve (15) is a plastic sliding sleeve, and the plastic sliding sleeve is fixedly embedded in the cable connecting arm (7).

4. The wind-resistant and vibration-damping photovoltaic support according to claim 2, wherein: A plurality of adjustment disc pin holes (14) arranged at equal intervals are provided on the balance wing adjustment disc (9). An adjustment disc pin (10) passes through the adjustment disc pin hole (14) and is fixedly inserted into the cable connecting arm (7).

5. The anti-wind and vibration damping photovoltaic support according to claim 1, characterized in that: The balance wing skin (12) is an elliptical cylindrical structure, and a major axis of the elliptical cylinder is located on a symmetry line of the cable connecting arm (7).

6. The anti-wind and vibration damping photovoltaic support according to claim 1 or 5, characterized in that: An outer end shape of the balance wing rib plate (11) coincides with an inner cylindrical surface of the balance wing skin (12) and is fixedly connected.

7. The anti-wind and vibration damping photovoltaic support according to claim 1, wherein: At least one photovoltaic component panel (5) is arranged on a side of the roll damping balance wing (6); the component cable (4) and the stay cable (2) are steel cables.

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