A solar wind-proof light-pursuing device

Abstract

The application provides a solar wind-proof light-pursuing device, which comprises a plurality of array gap arranged photovoltaic power generation units 10, an inclination adjusting unit, a supporting unit 30 and a first power unit; the inclination adjusting unit comprises a supporting frame 21 arranged on the supporting unit, and a first rotating mechanism 22 arranged at one end of the supporting frame 21; one side of the first rotating mechanism 22 is connected with the photovoltaic power generation unit 10, and the other side can adjust the height angle of the photovoltaic power generation unit 10 under the traction of the first power unit. The solar wind-proof light-pursuing device can uniformly adjust the height angle of a plurality of photovoltaic power generation units 10, and ensures the power generation efficiency of the photovoltaic power generation units 10. Meanwhile, when the wind force is large, the device can self-adaptively (or traction-adjustingly) reduce and adjust the included angle between the photovoltaic power generation unit 10 and the wind direction, and reduce the wind force suffered by each photovoltaic power generation unit 10.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation technology, specifically a solar wind-fighting and light-tracking device. Background Technology

[0002] Existing photovoltaic power generation devices typically arrange photovoltaic panels in a large overall frame, and fix the entire frame to face south, which cannot track the azimuth (horizontal direction) and altitude (height direction) of the sun. Because this structural setup, even if there is a sun-tracking device, generally only the azimuth of the overall frame is optimized, it cannot fully utilize solar energy.

[0003] The aforementioned existing technologies have the following core defects: Poor wind resistance: The integrated frame has a large windward area and no gaps between photovoltaic panels. In strong winds, the wind pressure is concentrated, which places extremely high demands on the strength of the supporting structure and drive mechanism, significantly increasing manufacturing costs. In Northwest and North my country, where solar energy resources are abundant, these areas are also prone to strong winds. Such devices are easily damaged by strong winds, resulting in high operation and maintenance costs.

[0004] Poor flexibility in tracking adjustment: The integrated frame can only achieve uniform azimuth adjustment and cannot be independently optimized for photovoltaic panels in different positions, resulting in limited improvement in power generation efficiency; moreover, the overall rotation requires greater driving power, resulting in higher energy consumption.

[0005] Lacks adaptive wind resistance: If a sudden strong wind or power outage occurs, it cannot automatically adjust its windward angle, which can easily lead to structural damage. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing integrated photovoltaic tracking device, such as poor wind resistance, high manufacturing cost and lack of adaptive wind protection capability, and to provide a solar wind protection tracking device. This device disperses wind pressure through independently arrayed photovoltaic units and achieves adaptive wind protection through a unidirectional constraint drive structure. At the same time, it can achieve unified dual-axis tracking adjustment, taking into account both power generation efficiency and wind resistance performance, and significantly reducing manufacturing costs and operational risks.

[0007] Technical solution: A solar wind-fighting and light-tracking device is provided, comprising a plurality of photovoltaic power generation units 10 arranged in an array, each photovoltaic power generation unit 10 being spaced apart, a tilt adjustment unit for correspondingly supporting and adjusting the height angle of the plurality of photovoltaic power generation units 10, a support unit 30 for supporting the tilt adjustment unit, and a first power unit for pulling the tilt adjustment unit. The tilt adjustment unit includes: a support frame 21 disposed on the support unit, and a first rotating mechanism 22 disposed at one end of the support frame 21; The first rotating mechanism 22 is connected to the photovoltaic power generation unit 10 on one side, and the other side can adjust the height angle of the photovoltaic power generation unit 10 under the traction of the first power unit.

[0008] The solar wind-tracking device of the present invention can uniformly adjust the elevation angle of several photovoltaic power generation units 10 to ensure the power generation efficiency of the photovoltaic power generation units 10. The spacing between each photovoltaic power generation unit 10 can reduce wind pressure and reduce the wind force it bears. When the wind force on the front is strong, the angle between the photovoltaic power generation unit 10 and the wind direction is reduced by adjusting the elevation angle, thereby reducing the wind force on each photovoltaic power generation unit 10.

[0009] Preferably, the support frame 21 includes: a crossbeam 211 fixedly connected to the support unit, and a vertical beam 212 connected to one end of the crossbeam 211; The first rotating mechanism 22 includes a rotating horizontal shaft 221 disposed at the end of the vertical beam 212 and a rotating frame 222 sleeved with the rotating horizontal shaft 221; The rotating frame 222 includes a bushing 2221 that is sleeved with the rotating horizontal shaft 221, a first connecting rod 2222 whose one end is connected to the bushing 2221 and whose other end is connected to the photovoltaic power generation unit 10, and a second connecting rod 2223 whose one end is connected to the bushing 2221 and whose other end is unidirectionally tensioned and constrained by the first power unit.

[0010] Preferably, the first power unit includes: a first motor 41 disposed on the support unit 30, a long rotating shaft 42 disposed on the support unit 30, a first pull rod 43 disposed on the long rotating shaft, and a cable 44 with one end connected to the first pull rod 43 and the other end connected to the second connecting rod 2223.

[0011] Preferably, the rotating horizontal axis 221 is located at more than 1 / 2 of the height direction of the photovoltaic power generation unit 10.

[0012] Preferably, the rotating horizontal axis 221 is located at a position greater than 3 / 4 of the height of the photovoltaic power generation unit 10.

[0013] Preferably, the connection between the second connecting rod 2223 and the bushing 2221 forms a horizontal stop section 22231, which is used to abut against and limit the vertical beam 212 when the rotating frame 22 rotates 90 degrees to the leeward side.

[0014] Preferably, the other end of the second connecting rod 2223 is connected to the photovoltaic power generation unit 10.

[0015] Preferably, it further includes a second rotating mechanism for adjusting the horizontal angle of the photovoltaic power generation unit, the second rotating mechanism comprising: A pin 51 with a head is provided between the crossbeam 211 and the vertical beam 212, wherein one end of the pin 51 with a head is fixedly connected to the bottom of the vertical beam 212, and the rod of the pin 51 is rotatably passed through the crossbeam 211. A second tie rod 52 connected to the vertical beam 212 can drive the vertical beam 212 to rotate under traction, thereby adjusting the horizontal angle of the photovoltaic power generation unit 10. Preferably, it also includes a second power unit for driving the second rotating mechanism. The second power unit includes a second motor 61 disposed on the support unit 30, and a lead screw mechanism 62 connected at one end to the second motor 61 and at the other end to the second pull rod 52. The lead screw mechanism 62 can pull the second pull rod 52 to reciprocate under the drive of the second motor 61.

[0016] Preferably, the second pull rods 52 corresponding to multiple photovoltaic power generation units 10 in the same row are fixedly connected to each other and are uniformly pulled by the same set of second power units to synchronously adjust the horizontal azimuth angle of all photovoltaic power generation units 10 in the row.

[0017] The solar wind-chasing and light-tracking device of the present invention has the following advantages: Significantly improved wind resistance: The photovoltaic power generation units are arranged in an independent array with gaps between adjacent units, which can effectively disperse wind pressure and avoid concentrated stress on the integral frame; at the same time, through the unidirectional tension constraint cable structure, combined with the upper rotating horizontal axis, the photovoltaic power generation units can automatically rotate under the action of wind force when a sudden strong wind occurs on the leeward side, reducing the windward angle and achieving adaptive wind protection. No active drive is required, and it can still work normally even when the power is off.

[0018] Higher power generation efficiency: The elevation angle and horizontal azimuth angle of the photovoltaic power generation unit can be adjusted independently to achieve dual-axis tracking, so that the photovoltaic panel is always facing the sun, and the power generation efficiency is greatly improved compared with fixed installation; at the same time, the design of row and / or column unified drive takes into account the adjustment flexibility and manufacturing cost.

[0019] Lower manufacturing and operating costs: The decentralized structural design significantly reduces the strength requirements of the supporting structure, resulting in a substantial reduction in material costs; the unified drive design reduces the number of drive mechanisms, leading to a significant reduction in equipment costs and energy consumption; the adaptive windproof structure can effectively reduce the risk of damage from strong winds, significantly reducing operating and maintenance costs.

[0020] High safety redundancy: Equipped with horizontal stop sections to prevent excessive flipping of photovoltaic power generation units, ensuring structural safety even in extreme wind conditions and extending service life.

[0021] The adjustment device has two uses: during periods of strong wind, the elevation angle and azimuth angle of the rows can be adjusted simultaneously to actively reduce the windward angle for wind protection. Attached Figure Description

[0022] Figure 1 A three-dimensional assembly diagram of a solar wind-proof and light-tracking device provided in Embodiment 1 of the present invention (only one row is shown).

[0023] Figure 2 A cross-sectional view of the assembly of a solar wind-fighting and light-tracking device with a head pin provided in Embodiment 1 of the present invention.

[0024] Figure 3 A partial enlarged view of the rotating frame in a solar wind-fighting and light-tracking device provided in Embodiment 1 of the present invention.

[0025] Figure 4 The three-dimensional assembly diagram of the photovoltaic power generation unit array arrangement in a solar wind-fighting and light-tracking device provided in Embodiment 1 of the present invention.

[0026] Among them, 10 is the photovoltaic power generation unit; 21 is the support frame; 211 is the crossbeam; and 212 is the vertical beam. 22. First rotating mechanism; 221. Rotating horizontal shaft; 222. Rotating frame; 2221. Bushing; 2222. First connecting rod; 2223. Second connecting rod; 22231. Horizontal stop section; 30. Support unit; 41. First motor; 42. Rotating long shaft; 43. First tie rod; 44. Cable; 51. Lead pin; 52. Second tie rod; 61. Second motor; 62. Lead screw mechanism. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to specific embodiments.

[0028] Example 1: like Figure 1-4 As shown, the present invention provides a solar wind-fighting and light-tracking device, comprising a plurality of photovoltaic power generation units 10 arranged in an array. Each photovoltaic power generation unit 10 is spaced apart, and the size of the gap can be adjusted according to specific circumstances to disperse wind pressure and reduce wind resistance.

[0029] Each photovoltaic power generation unit 10 is equipped with a set of tilt adjustment units. All tilt adjustment units are installed on the support unit 30. The support unit 30 includes multiple vertical support columns fixed to the ground. The tilt adjustment units corresponding to the photovoltaic power generation units 10 in the same row are fixed to the top of the same set of support columns to ensure structural stability.

[0030] The tilt adjustment unit includes: a support frame 21 disposed on the support unit; a first rotating mechanism 22 disposed at one end of the support frame 21; and a first power unit for traction of the tilt adjustment unit.

[0031] The first rotating mechanism 22 is connected to the photovoltaic power generation unit 10 on one side, and can adjust the height angle of the photovoltaic power generation unit 10 under the traction of the first power unit on the other side.

[0032] The solar wind-tracking device of the present invention can uniformly adjust the elevation angle of several photovoltaic power generation units 10 to ensure the power generation efficiency of the photovoltaic power generation units 10. The spacing between each photovoltaic power generation unit 10 can reduce wind pressure and reduce the wind force it bears.

[0033] When the wind is strong from the front, the angle between the photovoltaic power generation unit 10 and the wind direction is reduced by adjusting the elevation angle, thereby reducing the wind force on each photovoltaic power generation unit 10.

[0034] Preferably, the support frame 21 includes: a crossbeam 211 fixedly connected to the support unit, and a vertical beam 212 connected to one end of the crossbeam 211; the rear end of the crossbeam 211 is fixed to the top of the support column of the support unit 30.

[0035] The first rotating mechanism 22 includes a rotating horizontal shaft 221 disposed at the top of the vertical beam 212 and a rotating frame 222 sleeved with the rotating horizontal shaft 221; The rotating frame 222 includes a bushing 2221 that is sleeved with the rotating horizontal shaft 221, a first connecting rod 2222 whose one end is connected to the bushing 2221 and whose other end is connected to the photovoltaic power generation unit 10, and a second connecting rod 2223 whose one end is connected to the bushing 2221 and whose other end is unidirectionally tensioned and constrained by the first power unit.

[0036] In this way, the first power unit drives the second connecting rod 2223 to make the first rotating mechanism 22 rotate around the horizontal axis of rotation 221, thereby driving the photovoltaic power generation unit 10 on the other side to rotate and thus adjust the height angle.

[0037] In the western and northern regions rich in photovoltaic resources, the wind direction is mostly westerly and northerly. Since the cable 44 is a unidirectional tension constraint connection (i.e., tension constraint), each photovoltaic power generation unit 10 set in the south can achieve a dynamic balance between the gravity of the photovoltaic power generation unit 10 and the wind force when the wind force from the back is strong (not constrained by the cable 44), thereby adaptively reducing and adjusting the angle between the photovoltaic power generation unit 10 and the wind direction, and reducing the wind force it bears.

[0038] Preferably, the first power unit includes: a first motor 41 mounted on the support unit 30; a rotating long shaft 42 connected to the output shaft of the first motor 41 via a reducer; a first pull rod 43 fixedly mounted on the rotating long shaft 42 at a position corresponding to each photovoltaic power generation unit 10; and the end of the first pull rod 43 fixedly connected to the free end of the corresponding second connecting rod 2223 via a cable 44 (dashed line portion). The cable 44 is made of stainless steel and is a unidirectional tension constraint structure, which can only drive the second connecting rod 2223 to rotate downward by tension and cannot apply thrust. When the cable 44 is relaxed, the second connecting rod 2223 can rotate freely upward. It should be understood that the same unidirectional tension constraint connection as the cable 44 can also be a cable, rope, etc., all of which fall within the protection scope of this patent.

[0039] In the western and northern regions rich in photovoltaic resources, the wind direction is mostly westerly and northerly. Since the cable 44 is not a rigid connection, each photovoltaic power generation unit 10 set to the south can achieve a dynamic balance between the weight of the photovoltaic power generation unit 10 and the wind force when the wind force from the back is strong. This allows the photovoltaic power generation unit 10 to adaptively reduce the angle between itself and the wind direction, thereby reducing the wind force it bears.

[0040] Preferably, the rotating horizontal axis 221 is positioned at a point greater than 1 / 2 of the height of the photovoltaic power generation unit 10. This allows the photovoltaic power generation unit 10 to adaptively reduce the angle between itself and the wind direction under its own weight when facing an oncoming wind from the rear.

[0041] Preferably, the rotating horizontal axis 221 is positioned at a point greater than 3 / 4 of the height of the photovoltaic power generation unit 10. This allows the photovoltaic power generation unit 10 to adaptively reduce the angle between itself and the wind direction under its own weight when facing an oncoming wind from the rear.

[0042] Preferred, such as Figure 3 As shown, a horizontal stop section 22231 is integrally formed at the connection between the second connecting rod 2223 and the bushing 2221. This stop section is used to abut against the vertical beam 212 and limit the rotation when the rotating frame 22 rotates 90 degrees to the leeward side. This prevents the photovoltaic power generation unit 10 from overturning when there is a strong wind on the leeward side, thus limiting the rotation and preventing the photovoltaic power generation unit 10 from overturning.

[0043] Preferably, the other end of the second connecting rod 2223 is connected to the photovoltaic power generation unit 10. In this way, the rotating frame 222 and the photovoltaic power generation unit 10 form a closed support structure, which greatly improves the structural strength and prevents the photovoltaic power generation unit 10 from swaying in strong winds.

[0044] Preferably, it further includes a second rotating mechanism for adjusting the horizontal angle of the photovoltaic power generation unit, the second rotating mechanism comprising: A pin 51 is installed between the crossbeam 211 and the vertical beam 212. The upper end of the pin 51 has a head with a limiting shaft head, which is welded and fixed to the bottom of the vertical beam 212. The rod portion of the pin 51 passes downward through a shaft hole on the crossbeam 211 and is rotatably connected to the crossbeam 211, allowing the vertical beam 212 to drive the photovoltaic power generation unit 10 to rotate horizontally around the pin 51, thus adjusting the horizontal azimuth angle. A second tie rod 52 is welded and fixed to the side wall of the vertical beam 212, extending horizontally along the direction of travel. The second tie rod 52 can drive the vertical beam 212 to rotate under traction, thereby adjusting the horizontal angle of the photovoltaic power generation unit 10.

[0045] In this way, the second tie rod 52 drives the vertical beam 212 to rotate relative to the horizontal beam 211, thereby adjusting the horizontal angle of the photovoltaic power generation unit 10.

[0046] Preferred, such as Figure 4 As shown, the second power unit includes a second motor 61 fixed on the support unit 30, and a lead screw mechanism 62 that is connected to the output shaft of the second motor 61. The lead screw of the lead screw mechanism 62 is horizontally arranged along the row direction. The lead screw nut is fixedly connected to the end of the second pull rod 52 corresponding to all photovoltaic power generation units 10 in the same row. When the second motor 61 drives the lead screw to rotate, it drives the lead screw nut to move axially, thereby pulling all the second pull rods 52 to swing synchronously, driving all the photovoltaic power generation units 10 in the row to rotate synchronously and uniformly adjust the horizontal azimuth angle.

[0047] It should be understood that the photovoltaic power generation units 10 in the matrix can also be connected vertically (not shown) with the second pull rod 52 of each row, and uniformly adjusted by a second motor 61 at the bottom.

[0048] In this way, each photovoltaic power generation unit 10 is arranged in a matrix shape, and each photovoltaic power generation unit 10 has the above-mentioned independent tilt adjustment unit and second rotation mechanism, so that unified adjustment operation can be performed by the first power unit and the second power unit respectively.

[0049] The solar wind-fighting and light-tracking device of the present invention can adjust the azimuth and elevation angles to improve power generation efficiency; at the same time, during periods of strong wind, the device can adjust the angle between the photovoltaic power generation unit 10 and the wind direction, or the photovoltaic power generation unit 10 can achieve adaptive adjustment using its own gravity and wind force. This achieves the purpose of wind protection during periods of strong wind.

[0050] Working principle: 1. Tracking light adjustment Elevation angle adjustment: The first motor 41 drives the rotating long shaft 42 to rotate, which in turn drives the first pull rod 43 to swing. The second connecting rod 2223 is pulled to rotate through the cable 44, thereby driving the rotating frame 222 to rotate around the rotating horizontal axis 221, adjusting the pitch angle of the photovoltaic power generation unit 10 so that it is always facing the sun at the elevation angle.

[0051] Horizontal azimuth angle adjustment: The second motor 61 drives the lead screw mechanism 62 to move, which in turn drives the vertical beam 212 to rotate horizontally around the lead pin 51 through the second pull rod 52, thereby uniformly adjusting the horizontal azimuth angle of all photovoltaic power generation units 10 in the row so that they are always facing the sun, realizing dual-axis tracking and improving power generation efficiency.

[0052] 2. Wind protection measures: Frontal wind protection: When encountering a frontal wind (south wind), the photovoltaic power generation unit 10 can be driven by the first motor 41 to rotate to a position parallel to the wind direction, which greatly reduces the frontal area and lowers the wind pressure.

[0053] Adaptive wind protection against the wind from the back: When encountering a northerly wind, the wind force pushes the lower part of the photovoltaic power generation unit 10 to rotate forward. At this time, the cable 44 is slack and cannot be subjected to thrust constraint. The photovoltaic power generation unit 10 can automatically rotate under the action of wind force and gravity, reduce the windward angle, and achieve adaptive wind protection. When the wind force decreases, the photovoltaic power generation unit 10 automatically resets under the action of gravity, the cable 44 is re-tensioned, and the tracking adjustment capability is restored.

[0054] Extreme wind condition limit: When encountering extreme strong winds, when the photovoltaic power generation unit 10 rotates to 90 degrees, the horizontal stop section 22231 and the vertical beam 212 come into contact and limit the rotation, preventing excessive overturning and structural damage, and ensuring safety in extreme environments.

[0055] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A solar wind-chasing and light-tracking device, comprising a plurality of photovoltaic power generation units (10) arranged in an array, characterized in that... Each photovoltaic power generation unit (10) is arranged with gaps; a tilt adjustment unit is used to support and adjust the height angle of the photovoltaic power generation units (10); a support unit (30) is used to support the tilt adjustment unit; and a first power unit is used to pull the tilt adjustment unit. The tilt adjustment unit includes: a support frame (21) disposed on the support unit (30), and a first rotating mechanism (22) disposed at one end of the support frame (21). The first rotating mechanism (22) is connected to the photovoltaic power generation unit (10) on one side, and can adjust the height angle of the photovoltaic power generation unit (10) under the traction of the first power unit on the other side.

2. The solar wind-fighting and light-tracking device as described in claim 1, characterized in that, The support frame (21) includes: a crossbeam (211) fixedly connected to the support unit, and a vertical beam (212) connected to one end of the crossbeam (211). The first rotating mechanism (22) includes a rotating horizontal shaft (221) disposed at the end of the vertical beam (212) and a rotating frame (222) sleeved with the rotating horizontal shaft (221). The rotating frame (222) includes a bushing (2221) that is sleeved with the rotating horizontal shaft (221), a first connecting rod (2222) with one end connected to the bushing (2221) and the other end connected to the photovoltaic power generation unit (10), and a second connecting rod (2223) with one end connected to the bushing (2221) and the other end connected to the first power unit in a unidirectional tension constraint.

3. The solar wind-chasing and light-tracking device as described in claim 2, characterized in that, The first power unit includes: a first motor (41) mounted on the support unit (30), a long rotating shaft 42 mounted on the support unit (30), a first pull rod 43 mounted on the long rotating shaft, and a cable (44) with one end connected to the first pull rod 43 and the other end connected to the second connecting rod (2223).

4. The solar wind-fighting and light-tracking device as described in claim 2, characterized in that, The rotating horizontal axis (221) is located at more than 1 / 2 of the height direction of the photovoltaic power generation unit (10).

5. The solar wind-fighting and light-tracking device as described in claim 4, characterized in that, The rotating horizontal axis (221) is located at more than 3 / 4 of the height direction of the photovoltaic power generation unit (10).

6. The solar wind-fighting and light-tracking device as described in claim 2, characterized in that, The second connecting rod (2223) forms a horizontal stop section (22231) at the connection with the bushing (2221), which is used to abut against the vertical beam (212) and limit the rotation when the rotating frame (22) rotates 90 degrees to the leeward side.

7. The solar wind-fighting and light-tracking device as described in claim 2, characterized in that, The other end of the second connecting rod (2223) is connected to the photovoltaic power generation unit (10).

8. The solar wind-fighting and light-tracking device as described in claim 2, characterized in that, It also includes a second rotating mechanism for adjusting the horizontal angle of the photovoltaic power generation unit, the second rotating mechanism comprising: A pin (51) with a head is provided between the crossbeam (211) and the vertical beam (212), wherein one end of the pin (51) with a head is fixedly connected to the bottom of the vertical beam (212), and the rod of the pin (51) is rotatably passed through the crossbeam (211). The second tie rod (52) is connected to the vertical beam (212). The second tie rod (52) can drive the vertical beam (212) to rotate under the traction action, thereby adjusting the horizontal angle of the photovoltaic power generation unit (10).

9. The solar wind-fighting and light-tracking device as described in claim 8, characterized in that, It also includes a second power unit for driving the second rotating mechanism. The second power unit includes a second motor (61) mounted on the support unit (30) and a screw mechanism (62) with one end connected to the second motor (61) and the other end connected to the second pull rod (52). The screw mechanism (62) can pull the second pull rod (52) to reciprocate under the drive of the second motor (61).

10. The solar wind-fighting and light-tracking device as described in claim 9, characterized in that, The second pull rods (52) corresponding to multiple photovoltaic power generation units (10) in the same row are fixedly connected to each other and are uniformly pulled by the same set of second power units to synchronously adjust the horizontal azimuth angle of all photovoltaic power generation units (10) in the row.

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