A photovoltaic power generation support adjustment device

Abstract

This invention relates to the field of photovoltaic power generation support technology and discloses a photovoltaic power generation support adjustment device, including an adjustable support with a frame installed on top. A movable photovoltaic panel assembly is installed within the frame, and a wind pressure triggering mechanism is also installed within the frame. This invention, through the cooperation of the wind pressure triggering mechanism and a drive unit, gradually expands the pressure relief area between the photovoltaic panel and the frame edge. Considering the actual dynamic wind pressure characteristics, when the wind pressure further increases, the trigger plate is further opened, driving the photovoltaic panel to continue moving towards the photovoltaic panel, further expanding the pressure relief area and reducing the wind pressure acting on the photovoltaic panel assembly. This pressure relief method, achieved through the parallel stacking of the photovoltaic panel assemblies, avoids excessive folding due to excessive wind pressure, as is common in existing methods, thus preventing the lower surface of the photovoltaic panel from contacting or colliding with the ground and protecting the photovoltaic panel.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic power generation support technology, and specifically relates to a photovoltaic power generation support adjustment device. Background Technology

[0002] Photovoltaic (PV) power generation support adjustment devices are one of the core supporting components of PV systems. Their core function is to resolve the contradiction between the "fixed installation" of PV modules and the dynamic changes in solar irradiance, complex site conditions, and adaptability to extreme environments. Ultimately, this achieves the goals of improving power generation efficiency, adapting to diverse installation scenarios, ensuring system safety and durability, and optimizing project economics. Simply put, a fixed support system without adjustment devices will leave PV modules in a "suboptimal light-receiving state," and will also be subject to site and weather limitations, leading to system performance degradation and even safety risks.

[0003] For example, CN117478039B discloses a photovoltaic power generation device, including a support frame and an adjustment mechanism. Multiple photovoltaic panels are mounted on the support frame. When the photovoltaic panels are in a first working state, they are all on the same plane. When the photovoltaic panels are in a second working state, two photovoltaic panels in the same group are symmetrically tilted, and the ends of the two photovoltaic panels in the same group that are close to each other are rotatably connected. The adjustment mechanism is mounted on the support frame to switch the photovoltaic panels between the first and second working states. The photovoltaic power generation device of this invention, by providing an adjustment mechanism, ensures that when there is no wind, the multiple photovoltaic panels are on the same plane; when there is wind, two photovoltaic panels in the same group are symmetrically tilted, forming a triangular structure. This makes the photovoltaic panels less prone to swaying and reduces the possibility of damage to the photovoltaic panels.

[0004] Therefore, in existing technologies, when installing photovoltaic panels in windy areas, in order to prevent the brackets from tipping over or swaying due to wind force, existing technologies need to lower the center of gravity of the brackets to improve wind resistance stability. The core way to lower the center of gravity is to set the bracket height relatively low (and the bracket height should be no more than one-third of the width of the photovoltaic panel). This is a necessary prerequisite for the installation of photovoltaic brackets in windy environments. The core wind-resistant logic of the above solution is to adjust the mechanism so that two photovoltaic panels in the same group are symmetrically tilted and folded in a triangular structure during strong winds to reduce the swaying of the photovoltaic panels and thus reduce the risk of damage. This folding structure is the key to achieving the wind-resistant effect. However, in actual use, because the support needs to be adapted to the windy environment and the installation height is relatively low, the distance between the lower end of the two photovoltaic panels and the ground in the folded state is greatly compressed. When the photovoltaic panels switch from the first working state (same plane) to the second working state (symmetrical tilted folding) through the adjustment mechanism, and are affected by the large wind pressure, the folding range is easily large. The rotation diameter of a single photovoltaic panel is too large, and its extension length exceeds the height of the support. As a result, the lower end of the photovoltaic panel is easy to directly contact and collide with the ground, ultimately causing physical damage to the photovoltaic panel. Summary of the Invention

[0005] This invention provides a photovoltaic power generation support adjustment device, which solves the technical problem in related technologies where photovoltaic supports in windy areas need to be low-profile to resist wind, and the photovoltaic panels are folded into a triangular structure to resist wind when the wind is strong. When switching the folding state, the folding range is too large due to the influence of wind pressure, which makes the lower end of the photovoltaic panel easily come into contact with the ground and cause physical damage.

[0006] This invention provides a photovoltaic power generation support adjustment device, comprising:

[0007] Adjustable stand, with a frame mounted on top;

[0008] The frame contains movable photovoltaic panel modules, which include at least photovoltaic panel one fixed within the frame and movable photovoltaic panel two.

[0009] A groove along its length is provided on the inner side of the frame, and a slider is installed on the outer side of the photovoltaic panel near the groove, and the slider is slidably disposed in the groove.

[0010] The frame is also equipped with a wind pressure triggering mechanism, which includes two trigger plates. Both trigger plates are rotatably mounted on the inside of the frame. When the two trigger plates are combined, they form a ready-to-trigger state; when the two trigger plates are opened, they form a triggered state.

[0011] The frame is also equipped with a drive unit, which includes a ratchet assembly, a torsion spring, a gear, and a rack.

[0012] A rotating shaft is fixedly connected to the outer surface of the trigger plate. The ratchet assembly and the torsion spring are both mounted on the rotating shaft. The two ends of the torsion spring are connected to the ratchet assembly and the rotating shaft respectively, which are used to control the rotation and reset of the trigger plate.

[0013] The gear is mounted on the ratchet assembly, the rack is slidably disposed in the groove and fixedly connected to the slider, and the gear and rack mesh for transmission;

[0014] When the wind pressure causes the two trigger plates to change from the combined state to the open trigger state, the drive unit drives the photovoltaic panel to move within the frame, thereby forming and gradually expanding the pressure relief area between the adjustment frame and the photovoltaic panel, reducing the wind pressure acting on the photovoltaic panel. The pressure relief area between the frame and the photovoltaic panel is the space area exposed between the inside of the frame and the photovoltaic panel.

[0015] In a preferred embodiment, the ratchet assembly includes a rotating disk, a pawl, a spring, and a first ratchet. The rotating disk is fixedly connected to the end of the torsion spring away from the rotating shaft. The pawl is rotatably connected to the outer circumferential surface of the rotating disk. The two ends of the spring are respectively fixedly connected between the rotating disk and the pawl. The first ratchet is rotatably connected within the frame. The pawl engages unidirectionally with the inner ring of the first ratchet, and the axis of the first ratchet is coaxial with the axis of the rotating shaft. The gear is coaxially fixedly connected to the outer circumferential surface of the first ratchet.

[0016] In a preferred embodiment, the grooves corresponding to photovoltaic panel one and photovoltaic panel two are misaligned, and at most one of photovoltaic panel one and photovoltaic panel two can be fixed in the frame, while the other photovoltaic panel is driven by the drive unit to move horizontally toward the photovoltaic panel assembly.

[0017] In a preferred embodiment, the first photovoltaic panel is fixed inside the frame, the rack is fixedly connected to the second photovoltaic panel, and the second photovoltaic panel is driven by the driving unit to move horizontally toward the first photovoltaic panel.

[0018] In a preferred embodiment, the photovoltaic panel assembly includes a foldable photovoltaic panel three, which is formed by rotating and splicing at least three photovoltaic panels, and the rotation axes between adjacent photovoltaic panels are rotatably mounted on corresponding sliders.

[0019] In a preferred embodiment, the two trigger plates are configured as double doors, the two rotating shafts rotate in opposite directions, and two sets of corresponding drive units are also provided on the rotating shafts. The pawls on the two rotating shafts engage with the ratchet wheel in opposite directions, and the pawl on the side closer to the photovoltaic panel assembly engages with the ratchet wheel in a counterclockwise direction, while the pawl on the side farther from the photovoltaic panel assembly engages with the ratchet wheel in a clockwise direction.

[0020] In a preferred embodiment, the adjustable bracket includes a mounting frame, a slide rod, a fixed seat, and a rotation angle. The mounting frame is fixedly connected to the bottom of the frame, the slide rod is rotatably connected to the bottom of the mounting frame, the fixed seat is slidably connected to the outside of the slide rod, and the rotation angle is rotatably connected to the bottom of the mounting frame.

[0021] In a preferred embodiment, the slider has a through hole for a connecting wire to pass through, and the connecting wire is electrically connected to the photovoltaic panel module.

[0022] In a preferred embodiment, an electric clutch is also installed within the frame. The electric clutch includes a driving end, a driven end, an electromagnetic control assembly, and a return spring. The driving end includes a driving toothed disc and a driving splined bushing, and the driven end includes a driven toothed disc and a driven splined bushing. The electromagnetic control assembly includes an electromagnetic coil and an armature. The electric clutch is fixedly mounted on the frame. The driving end of the electric clutch is fixedly connected to the ratchet assembly, and the driven end is coaxially fixedly connected to the ratchet.

[0023] The beneficial effects of this invention are as follows:

[0024] This invention utilizes the cooperation of a wind pressure triggering mechanism and a drive unit to move a second photovoltaic panel. The pressure relief area between the second photovoltaic panel and the frame edge gradually expands. Considering the actual dynamic wind pressure characteristics, when the wind pressure further increases, the trigger plate is further opened. Through the aforementioned transmission structure, the second photovoltaic panel continues to move towards the first photovoltaic panel, further expanding the pressure relief area and reducing the wind pressure acting on the photovoltaic panel assembly. This pressure relief method, achieved through the parallel stacking of the photovoltaic panel assemblies, avoids excessive folding due to excessive wind pressure, as is common in existing methods. Consequently, it prevents the lower surface of the photovoltaic panel from contacting or colliding with the ground, thus protecting the photovoltaic panel.

[0025] This invention sets a single photovoltaic panel as three rotatably connected plates, with a preset initial angle between adjacent plates, and each photovoltaic plate folds and rotates synchronously. At the same time, the folding and rotation of the third photovoltaic panel generates two pressure relief structures on the left and right, that is, an exposed space area is formed between the third photovoltaic panel and the inner side of the frame. As the slider continues to move, the folding angle of the third photovoltaic panel gradually increases, and the area of ​​the pressure relief exposed space area expands synchronously, thereby improving the pressure relief effect. At the same time, through the splicing and folding of the multiple plates of the third photovoltaic panel, the rotation diameter of the single photovoltaic plate is greatly reduced, which is much smaller than the erection height of the low center of gravity support. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0027] Figure 1This is a schematic diagram of the external structure of the photovoltaic power generation bracket adjustment device of the present invention.

[0028] Figure 2 This is a schematic diagram of the external structure of photovoltaic panel one and photovoltaic panel two of the present invention.

[0029] Figure 3 This is a bottom cross-sectional view of the photovoltaic power generation bracket adjustment device of the present invention.

[0030] Figure 4 This is the invention Figure 3 Enlarged structural diagram at point A in the middle.

[0031] Figure 5 This is the invention Figure 3 Enlarged structural diagram at point B.

[0032] Figure 6 This is a schematic diagram of the external structure of the wind pressure triggering mechanism and drive unit of the present invention.

[0033] Figure 7 This is the invention Figure 6 Enlarged structural diagram at point C.

[0034] Figure 8 This is the invention Figure 7 Enlarged structural diagram at point D.

[0035] Figure 9 This is a schematic diagram of the external structure of the photovoltaic panel installation in the photovoltaic power generation bracket adjustment device of the present invention.

[0036] Figure 10 This is the present invention. Figure 8 A schematic diagram of the cross-sectional structure of the bracket adjustment device for photovoltaic power generation.

[0037] Figure 11 This is a schematic diagram of the three external structures of the photovoltaic panel of the present invention.

[0038] In the diagram: 1. Adjustable bracket; 11. Mounting bracket; 12. Slide bar; 13. Fixed base; 14. Rotation angle; 2. Frame; 3. Photovoltaic panel assembly; 4. Wind pressure triggering mechanism; 5. Drive unit; 6. Electric clutch; 31. Photovoltaic panel one; 32. Photovoltaic panel two; 321. Slider; 322. Slide groove; 33. Photovoltaic panel three; 41. Trigger plate; 42. Rotating shaft; 51. Ratchet assembly; 52. Torsion spring; 511. Rotary disk; 512. Pawl; 513. Spring; 514. Ratchet one; 53. Gear; 54. Rack. Detailed Implementation

[0039] 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 invention, and therefore only show the components relevant to the invention.

[0040] To address the issue of photovoltaic (PV) systems in windy areas requiring low-profile installations for wind resistance, and the problem of folding PV panels into a triangular structure during strong winds, the excessive folding angle due to wind pressure during the switching between folded and triangular configurations can cause the lower surfaces of the PV panels to easily collide with the ground, resulting in physical damage. Figure 1 , Figure 2 , Figure 3 As shown, a photovoltaic power generation support adjustment device includes:

[0041] Adjustable bracket 1, with frame 2 mounted on top of adjustable bracket 1;

[0042] The frame 2 is equipped with a movable photovoltaic panel assembly 3, which includes at least a photovoltaic panel 31 fixed in the frame 2 and a movable photovoltaic panel 32.

[0043] A groove 322 along its length is provided on the inner side of the frame 2. A slider 321 is installed on the outer side of the photovoltaic panel 32 near the groove 322. The slider 321 is slidably disposed in the groove 322.

[0044] The frame 2 is also equipped with a wind pressure triggering mechanism 4, which includes two trigger plates 41. Both trigger plates 41 are rotatably mounted on the inner side of the frame 2. The two trigger plates 41 are combined to form a ready-to-trigger state, and the two trigger plates 41 are opened to form a triggered state.

[0045] The frame 2 is also equipped with a drive unit 5, which includes a ratchet assembly 51, a torsion spring 52, a gear 53 and a rack 54;

[0046] A rotating shaft 42 is fixedly connected to the outer surface of the trigger plate 41. The ratchet assembly 51 and the torsion spring 52 are both mounted on the rotating shaft 42. The two ends of the torsion spring 52 are respectively connected to the ratchet assembly 51 and the rotating shaft 42, which are used to control the rotation and reset of the trigger plate 41.

[0047] Gear 53 is mounted on ratchet assembly 51, rack 54 is slidably disposed in slide groove 322 and fixedly connected to slider 321, and gear 53 and rack 54 mesh and transmit power.

[0048] When the wind pressure causes the two trigger plates 41 to change from the combined state to the open trigger state, the drive unit 5 drives the photovoltaic panel 3 to move within the frame 2, thereby forming and gradually expanding the pressure relief area between the adjusting frame 2 and the photovoltaic panel 3, reducing the wind pressure acting on the photovoltaic panel 3. The pressure relief area between the frame 2 and the photovoltaic panel 3 is the space area exposed between the inside of the frame 2 and the photovoltaic panel 3.

[0049] like Figure 4 , Figure 6 , Figure 7 As shown, the ratchet assembly 51 includes a rotating disk 511, a pawl 512, a spring 513, a ratchet wheel 514, and a gear 53. The rotating disk 511 is fixedly connected to the end of the torsion spring 52 away from the rotating shaft 42. The pawl 512 is rotatably connected to the outer circumferential surface of the rotating disk 511. The two ends of the spring 513 are respectively fixedly connected between the rotating disk 511 and the pawl 512. The ratchet wheel 514 is rotatably connected inside the frame 2, and the axis of the ratchet wheel 514 is coaxial with the axis of the rotating shaft 42. The gear 53 is sleeved on the outer circumferential surface of the ratchet wheel 514. The pawl 512 and the inner ring of the ratchet wheel 514 engage in one-way meshing.

[0050] like Figure 2 , Figure 3 , Figure 5 As shown, the photovoltaic panel assembly 3 includes at least photovoltaic panel one 31 and photovoltaic panel two 32. Photovoltaic panel one 31 and photovoltaic panel two 32 are vertically offset and correspond to each other. There are two photovoltaic panels two 32, and the corresponding sliding grooves 322 of the two photovoltaic panels two 32 are vertically offset and correspond to each other. Photovoltaic panel one 31 is fixedly connected inside the frame 2, and photovoltaic panel one 31 is fixed at the end of the frame 2 away from the wind pressure triggering mechanism 4, while the other two photovoltaic panels two 32 are driven by the drive unit 5 to move horizontally towards photovoltaic panel one 31. There are also two racks 54, which correspond to photovoltaic panels two 32. Both racks 54 are fixedly connected to the end of the slider 321 near the wind pressure triggering mechanism 4.

[0051] Specifically, the two trigger plates 41 are configured as double doors, the two rotating shafts 42 rotate in opposite directions, and two sets of corresponding drive units 5 are also provided on the rotating shafts 42. The pawls 512 and ratchet 514 on the two rotating shafts 42 have opposite engagement directions, and the engagement direction of the pawl 512 and ratchet 514 on the side closer to the photovoltaic panel 3 is counterclockwise (e.g., Figure 7 and Figure 8 As shown, when the trigger plate 41 at this position is triggered by wind pressure, the rotating shaft 42 on the trigger plate 41 rotates counterclockwise, thereby driving the gear 53 to rotate, and simultaneously causing the meshing rack 54 and photovoltaic panel 2 32 to move towards photovoltaic panel 1 31. The pawl 512 and ratchet 1 514 on the side away from the photovoltaic panel assembly 3 are configured to mesh clockwise. When the trigger plate 41 at this position is triggered by wind pressure, the rotating shaft 42 on the trigger plate 41 rotates clockwise, thereby driving the gear 53 to rotate, and simultaneously causing the meshing rack 54 and photovoltaic panel 2 32 to move towards photovoltaic panel 1 31.

[0052] It should be further explained that each time the trigger plate 41 is opened, the ratchet assembly 51 drives the rack 54 to move unidirectionally a predetermined distance along the direction of the photovoltaic panel assembly 3. This predetermined distance is related to the tooth clearance between the gear 53 and the rack 54 and can be adjusted according to actual needs. This changes the photovoltaic panel assembly 3 and the frame 2 from an initial sealed state to an open state, creating and gradually increasing the exposed space within the framed area of ​​the photovoltaic panel assembly 3 and the frame 2. When the trigger photovoltaic panel 32 is opened sequentially or subsequently, the ratchet assembly 51, gear 53, and rack 54 structure enable the movement of the photovoltaic panel assembly 3, thereby adjusting the size of the pressure relief area.

[0053] like Figure 1 , Figure 2 , Figure 3 As shown, specifically, the adjustable bracket 1 is equipped with a fixed base 13, which is fixedly connected to the ground by bolts; the upper end face of the fixed base 13 is slidably engaged with the slide rod 12, and the two are locked by bolts to fix their relative positions; the end of the slide rod 12 away from the fixed base 13 is rotatably connected to the mounting frame 11, and the two can rotate relative to each other; the lower surface of the mounting frame 11 is rotatably connected to the rotation angle 14, which is fixed to the ground by bolts, and the upper surface of the mounting frame 11 is fixedly connected to the frame 2.

[0054] It should be further explained that when the bracket for adjusting the photovoltaic panel needs to be installed, the fixed base 13 and the rotation angle 14 are not fixed by bolts. First, the locking bolt between the fixed base 13 and the slide rod 12 is unlocked, and the slide rod 12 is pushed to slide along the upper end face of the fixed base 13, changing the relative extension length of the slide rod 12 and the fixed base 13. With the rotational cooperation of the slide rod 12 and the mounting frame 11, and the mounting frame 11 and the rotation angle 14, the sliding of the slide rod 12 will drive the mounting frame 11 to deflect around the rotation angle 14, thereby driving the upper frame 2 to complete the angle adjustment simultaneously. After the frame 2 is adjusted to the target angle, the bolts between the fixed base 13 and the slide rod 12 are tightened again to complete the fixing of the bracket angle and realize the angle adjustment operation of the photovoltaic power generation bracket.

[0055] The slider 321 also has a through hole for the connecting wire to pass through, facilitating the connection between the connecting wire and the photovoltaic panel module 3. The connecting wire, as a conductive medium, enables the effective transfer of electrical energy converted from solar energy by the photovoltaic panel module 3, completing the series and parallel networking of the photovoltaic panel modules 3. It also connects the photovoltaic panel modules 3 to subsequent power distribution equipment such as combiner boxes and inverters, ensuring the normal output of photovoltaic power to the grid or the power consumption end.

[0056] like Figure 1 , Figure 2 , Figure 3As shown, an electric clutch 6 is also installed inside the frame 2. The electric clutch 6 includes a driving end, a driven end, an electromagnetic control assembly, and a return spring. The driving end includes a driving toothed disc and a driving splined bushing, and the driven end includes a driven toothed disc and a driven splined bushing. The electromagnetic control assembly includes an electromagnetic coil and an armature. The electric clutch 6 is fixedly mounted on the frame 2. The driving end of the electric clutch 6 is fixedly connected to the ratchet assembly 51. The ratchet assembly 51 is fixedly connected to the rotating shaft 42 via a torsion spring 52. The driven end is coaxially fixedly connected to the first ratchet 514. The working end of the electric clutch 6 is connected to the ratchet assembly 51 and is used to drive the ratchet assembly 51 to separate from the gear 53, thus releasing their splined engagement. The end of the slider 321 away from the wind pressure triggering mechanism 4 can be connected to an existing electric push rod, so that under the push of the electric push rod, it drives the rack 54, the slider 321, and the second photovoltaic panel 32 back to the initial position. The core working principle of the electric clutch 6 is as follows: Under normal conditions, the electric clutch 6 is de-energized, the electromagnetic coil is non-magnetic, and the return spring pushes the active jaw disc to mesh with the driven jaw disc. The active end and the driven end rotate synchronously, maintaining the spline engagement between the ratchet assembly 51 and the gear 53, ensuring the smooth mechanical transmission link of the drive unit 5. When reset is required, the electric clutch 6 is energized, the electromagnetic coil generates magnetism to attract the armature, and drives the active jaw disc to overcome the spring force of the return spring and separate from the driven jaw disc. The active end and the driven end are de-linked, thereby separating the ratchet assembly 51 from the gear 53, eliminating the mechanical locking of the gear 53 rack 54 transmission, and providing conditions for the reset of the photovoltaic panel assembly 3.

[0057] It should be further explained that when the ambient wind force reaches the preset trigger threshold (typical strong wind conditions in a high-wind area), the device automatically initiates the wind pressure trigger depressurization state. The entire process is purely mechanical, requiring no external energy input or manual operation. The specific process is as follows:

[0058] The strong wind pressure first acts on the trigger plate 41 inside the frame 2, pushing the two split trigger plates 41 to open outwards, causing the rotating shaft 42 to rotate in a preset direction. The torsion spring 52 undergoes elastic deformation, storing elastic force for subsequent reset. The rotation of the rotating shaft 42 is linked to the synchronous rotation of the ratchet assembly 51. The pawl 512 engages with the ratchet 514 in one direction, causing the ratchet 514 to rotate, which in turn drives the gear 53 to rotate. Through the meshing transmission of the gear 53 and rack 54, the rotational motion is converted into the linear motion of the rack 54, causing the two photovoltaic panels 32 to move horizontally along the slide groove 322 towards the photovoltaic panel 31. After the photovoltaic panels 32 move, a pressure relief zone is formed between the frame 2 and the photovoltaic panel assembly 3. The pressure relief area expands in a stepwise manner as the wind pressure fluctuates: when the wind pressure disappears briefly, the trigger plate 41 resets and merges under the action of the torsion spring 52, the pawl 512 disengages from the ratchet 514, and the photovoltaic panel 32 remains in its current position, with the pressure relief area remaining unchanged; when the wind pressure increases again, the trigger plate 41 opens again, repeating the transmission process to push the photovoltaic panel 32 to continue moving, further expanding the pressure relief area, achieving the protective effect of diverting strong winds and reducing the wind pressure on the photovoltaic panel; throughout the entire high wind condition response process, the photovoltaic panel assembly 3 adopts a parallel stacking pressure relief method, avoiding the problem of the lower end of the photovoltaic panel hitting and colliding with the ground caused by traditional folding protection, and protecting the photovoltaic panel assembly 3 from mechanical damage.

[0059] like Figure 9 , Figure 10 , Figure 11 As shown, in another embodiment of the present invention, the area of ​​the pressure relief region between the frame 2 and the photovoltaic panel assembly 3 is adjusted by folding the photovoltaic panel assembly 3. In this embodiment, the photovoltaic panel assembly 3 includes a foldable photovoltaic panel 33, which is formed by rotating and splicing at least three photovoltaic panels, and the rotation axes between adjacent photovoltaic panels are rotatably mounted on corresponding sliders 321.

[0060] Specifically, the end of the slider 321 on the photovoltaic panel module 3 near the wind pressure triggering mechanism 4 is fixed to the rack 54 (e.g., Figure 7 and Figure 8 As shown), when the trigger plate 41 is triggered by wind pressure, the rotating shaft 42 on the trigger plate 41 rotates counterclockwise, which drives the gear 53 to rotate. At the same time, it drives the meshing rack 54 and slider 321 to move away from the wind pressure triggering mechanism 4. While the slider 321 moves, it drives the photovoltaic panel 33 to move and rotate. The rotating parts of the photovoltaic panel 33 have a certain initial angle so that the photovoltaic panels of the photovoltaic panel 33 that are close to each other can rotate at the same time.

[0061] It should be further explained that, in the above embodiment, when the slider 321 moves along the slide groove 322, it drives each panel of the photovoltaic panel 33 connected to it to rotate around the adjacent rotation axis. Since there is a preset initial angle between the adjacent panels, each photovoltaic panel folds and rotates synchronously. At the same time, the folding and rotation of the photovoltaic panel 33 will generate two pressure relief structures on the left and right, that is, an exposed space area is formed between the photovoltaic panel 33 and the inner side of the frame 2. As the slider 321 continues to move, the folding angle of the photovoltaic panel 33 gradually increases, and the area of ​​the exposed space area expands synchronously. Through the splicing and folding of multiple panels of the photovoltaic panel 33, the rotation diameter of a single photovoltaic panel is greatly reduced, which is much smaller than the erection height of the low center of gravity support.

[0062] Working principle of the invention:

[0063] In normal power generation mode, the two trigger plates 41 of the wind pressure triggering mechanism 4 are in a combined, ready-to-trigger state, and the torsion spring 52 is in a natural reset state with no elastic deformation. The photovoltaic panel 3's photovoltaic panel 1 31 and two photovoltaic panels 2 32 are in their initial positions, forming the first working state on the same plane, maximizing the reception of solar energy for photoelectric conversion. There is no exposed space between the frame 2 and the photovoltaic panel 3, and the pressure relief area is zero. In the drive unit 5, the pawl 512 is engaged with the ratchet 1 514 under the action of the spring 513, the gear 53 is engaged with the rack 54 but there is no relative movement, and the slider 321 is engaged in the groove 322, restricting the photovoltaic panel 2 32 from moving freely. The electric clutch 6 is in a de-energized state, and the reset spring pushes the active toothed disc to engage with the driven toothed disc. The active end and the driven end rotate synchronously, maintaining the spline engagement between the ratchet assembly 51 and the gear 53. The connecting wire passes through the wire hole of the slider 321 to ensure that the photovoltaic panel's power is normally output to the power distribution equipment.

[0064] The wind pressure generated by the strong wind on the photovoltaic panel module 3 first acts on the trigger plate 41 inside the frame 2. The triggering device uses a full-link mechanical transmission to dynamically expand the pressure relief area. The core action is divided into multiple steps and can be triggered cyclically with changes in wind pressure.

[0065] The strong wind impact force pushes the two split trigger plates 41 to open outward, switching from the waiting state to the trigger state. The trigger plates 41 drive the rotating shaft 42 to rotate in the preset direction (the two rotating shafts 42 rotate in opposite directions). The torsion spring 52, which is torn and sleeved on the rotating shaft 42, produces elastic deformation, which stores elastic force for subsequent reset.

[0066] The rotation of the shaft 42 drives the ratchet assembly 51 to rotate synchronously. The rotating disk 511 rotates with the shaft 42. The pawl 512 maintains unidirectional engagement with the ratchet 514 under the action of the spring 513, thereby driving the ratchet 514 to rotate synchronously (the engagement direction of the pawls 512 on both sides with the ratchet is adapted to the rotation direction of the shaft 42 to ensure that the ratchet is driven in the same direction).

[0067] The rotation of ratchet 514 drives the coaxial spline gear 53 to rotate synchronously. The gear 53 meshes with the rack 54 fixed on the slider 321, converting the rotational motion into the linear motion of the rack 54, which drives the two photovoltaic panels 32 to move horizontally along the slide groove 322 towards the photovoltaic panel 31.

[0068] After the photovoltaic panel 2 32 moves, an exposed pressure relief area is formed between the frame 2 and the photovoltaic panel module 3. The area gradually expands as the photovoltaic panel 2 32 moves, thereby diverting strong winds and reducing the wind pressure on the photovoltaic panel module 3.

[0069] In actual high wind conditions, wind pressure is not constant. When the wind pressure disappears briefly, the torsion spring 52 releases its elastic force to drive the rotating shaft 42 to rotate in the opposite direction, pushing the trigger plate 41 to reset and merge. However, since the pawl 512 and ratchet 514 are a one-way meshing structure, the pawl 512 will disengage from ratchet 514 and reset with the rotating disk 511, and will not drive ratchet 514 to rotate in the opposite direction. The photovoltaic panel 32 remains in its current position, and the area of ​​the pressure relief area remains unchanged.

[0070] When the wind pressure increases again, the trigger plate 41 will be opened again, repeating the above transmission process, pushing the photovoltaic panel 32 to continue moving, and the pressure relief area will be further expanded; each time the trigger plate 41 is opened, the ratchet assembly 51 drives the rack 54 to move unidirectionally a predetermined distance, realizing the step-like expansion of the pressure relief area to adapt to dynamic wind pressure changes.

[0071] The photovoltaic panel module 3 adopts a parallel stacking pressure relief method, which avoids the problem of the lower end of the photovoltaic panel hitting the ground due to excessive folding in the traditional solution.

[0072] After the strong winds subside, the wind pressure on the trigger plate 41 disappears. The device needs to be reset through an electric clutch and an electric push rod to restore normal power generation. The specific process is as follows:

[0073] When the torsion spring 52 fully releases its elastic deformation force, it drives the rotating shaft 42 to rotate in the opposite direction, pushing the two trigger plates 41 to merge again and return to the ready-to-trigger state. At this time, the ratchet assembly 51 rotates in the opposite direction with the rotating shaft 42, but due to the one-way meshing characteristic of the pawl 512, it cannot drive the rack 54 to move in the opposite direction, and the photovoltaic panel 32 cannot automatically reset.

[0074] When the electric clutch 6 is energized, the electromagnetic coil generates a magnetic attraction to the armature, which drives the active toothed disc to overcome the spring force of the return spring and separate from the driven toothed disc. The active end and the driven end are decoupled, which in turn drives the ratchet assembly 51 to separate from the gear 53, releasing the spline fit restriction between the two and eliminating the mechanical lock of the gear 53 and rack 54 transmission.

[0075] Start the electric push rod connected to the slider 321. The electric push rod pushes the slider 321 to move along the slide groove 322 in a direction away from the photovoltaic panel 31. The slider 321 drives the rack 54 to move synchronously in the opposite direction. The rack 54 meshes with the gear 53 to drive the ratchet 514 and the rotating disk 511 to rotate in the opposite direction.

[0076] When photovoltaic panel 2 32 moves to its initial position and forms a stepped plane with photovoltaic panel 1 31 again, the electric push rod is turned off, the electric clutch 6 is de-energized, the electromagnetic coil loses its magnetism, the reset spring pushes the active toothed disc and the driven toothed disc to re-engage, the active end and the driven end resume synchronous rotation, the pawl 512 re-engages with ratchet 1 514 under the action of spring 513, the gear 53 and ratchet 1 514 resume spline engagement, and the device returns to the normal standby stage, waiting for the next wind pressure trigger.

[0077] When a foldable photovoltaic panel 33 (composed of at least three photovoltaic panels rotated and spliced ​​together) is used, the wind pressure triggering mechanism 4, in cooperation with the drive unit 5, drives the slider 321 to move along the slide groove 322 towards the initial fixed end of the photovoltaic panel. As the slider 321 moves along the slide groove 322, it drives each panel of the photovoltaic panel 33, which is rotatably connected to it, to rotate around the adjacent rotation axis. Since there is a preset initial angle between adjacent panels, each photovoltaic panel folds and rotates synchronously. At the same time, the folding and rotation of the photovoltaic panel 33 will generate two pressure relief structures on the left and right, that is, an exposed space area is formed between the photovoltaic panel 33 and the inner side of the frame 2. As the slider 321 continues to move, the folding angle of the photovoltaic panel 33 gradually increases, and the area of ​​the exposed space area expands synchronously. Its reset process is the same as the reset process of the photovoltaic panel 32 described above, and is achieved through the cooperation of the electric clutch 6 and the electric push rod, which will not be described in detail here.

[0078] 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 present 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.

[0079] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A photovoltaic power generation support adjustment device, characterized in that, include: Adjustable bracket (1), the top of which is fitted with a frame (2); The frame (2) is equipped with a movable photovoltaic panel assembly (3), which includes at least a photovoltaic panel one (31) fixed in the frame (2) and a movable photovoltaic panel two (32). The frame (2) has a groove (322) along its length on the inner side. The photovoltaic panel (32) is equipped with a slider (321) on the outer side near the groove (322). The slider (321) is slidably disposed in the groove (322). The frame (2) is also equipped with a wind pressure triggering mechanism (4), which includes two trigger plates (41). Both trigger plates (41) are rotatably installed on the inner side of the frame (2). The two trigger plates (41) are combined to form a ready-to-trigger state, and the two trigger plates (41) are opened to form a trigger state. The frame (2) is also equipped with a drive unit (5), which includes a ratchet assembly (51), a torsion spring (52), a gear (53) and a rack (54). A rotating shaft (42) is fixedly connected to the outer surface of the trigger plate (41). The ratchet assembly (51) and the torsion spring (52) are both mounted on the rotating shaft (42). The two ends of the torsion spring (52) are respectively connected to the ratchet assembly (51) and the rotating shaft (42) to control the rotation and reset of the trigger plate (41). The gear (53) is mounted on the ratchet assembly (51), the rack (54) is slidably disposed in the groove (322) and fixedly connected to the slider (321), and the gear (53) and the rack (54) mesh and drive each other; When the wind pressure causes the two trigger plates (41) to change from the combined state to the open trigger state, the drive unit (5) drives the photovoltaic panel assembly (3) to move within the frame (2), thereby forming and gradually expanding the pressure relief area between the adjustment frame (2) and the photovoltaic panel assembly (3), reducing the wind pressure acting on the photovoltaic panel assembly (3). The pressure relief area between the frame (2) and the photovoltaic panel assembly (3) is the space area exposed between the inside of the frame (2) and the photovoltaic panel assembly (3). The slide grooves (322) corresponding to the photovoltaic panel one (31) and the photovoltaic panel two (32) are misaligned, and at most one of the photovoltaic panel one (31) and the photovoltaic panel two (32) can be fixed in the frame (2), while the other photovoltaic panel is driven by the drive unit (5) to move horizontally away from the wind pressure triggering mechanism (4); The two trigger plates (41) are set as double doors, the two rotating shafts (42) rotate in opposite directions, and the corresponding drive units (5) on the rotating shafts (42) are also set in two sets. The pawls (512) set on the two rotating shafts (42) and the ratchet wheel (514) are in opposite directions. The pawls (512) on the side closer to the photovoltaic panel assembly (3) and the ratchet wheel (514) are set in a counterclockwise direction. The pawls (512) on the side farther away from the photovoltaic panel assembly (3) and the ratchet wheel (514) are set in a clockwise direction.

2. The photovoltaic power generation support adjusting device according to claim 1, characterized in that, The ratchet assembly (51) includes a rotating disk (511), a pawl (512), a spring (513), and a ratchet wheel (514). The rotating disk (511) is fixedly connected to the end of the torsion spring (52) away from the rotating shaft (42). The pawl (512) is rotatably connected to the outer circumferential surface of the rotating disk (511). The two ends of the spring (513) are fixedly connected between the rotating disk (511) and the pawl (512). The ratchet wheel (514) is rotatably connected inside the frame (2). The pawl (512) and the inner ring of the ratchet wheel (514) engage in one direction only. The axis of the ratchet wheel (514) is coaxially set with the axis of the rotating shaft (42). The gear (53) is coaxially sleeved on the outer circumferential surface of the ratchet wheel (514).

3. The photovoltaic power generation support adjusting device according to claim 1, characterized in that, The first photovoltaic panel (31) is fixed inside the frame (2), and the rack (54) is fixedly connected to the second photovoltaic panel (32). The second photovoltaic panel (32) is driven by the driving unit (5) to move horizontally towards the first photovoltaic panel (31).

4. The photovoltaic power generation support adjusting device according to claim 1, characterized in that, The photovoltaic panel assembly (3) includes a foldable photovoltaic panel three (33), which is formed by rotating and splicing at least three photovoltaic panels, and the rotation axes between adjacent photovoltaic panels are rotatably mounted on the corresponding sliders (321).

5. A photovoltaic power generation support adjustment device according to claim 1 or 4, characterized in that, The adjustable bracket (1) includes a mounting bracket (11), a sliding rod (12), a fixed seat (13), and a rotation angle (14). The mounting bracket (11) is fixedly connected to the bottom of the frame (2), the sliding rod (12) is rotatably connected to the bottom of the mounting bracket (11), the fixed seat (13) is slidably connected to the outside of the sliding rod (12), and the rotation angle (14) is rotatably connected to the bottom of the mounting bracket (11).

6. The photovoltaic power generation support adjustment device according to claim 5, characterized in that, The slider (321) has a through hole for the connecting wire to pass through, and the connecting wire is electrically connected to the photovoltaic panel assembly (3).

7. The photovoltaic power generation support adjusting device according to claim 6, characterized in that, An electric clutch (6) is also installed inside the frame (2). The electric clutch (6) includes an active end, a driven end, an electromagnetic control component and a return spring. The active end includes an active toothed disc and an active spline bushing. The driven end includes a driven toothed disc and a driven spline bushing. The electromagnetic control component includes an electromagnetic coil and an armature. The electric clutch (6) is fixedly mounted on the frame (2). The active end of the electric clutch (6) is fixedly connected to the ratchet assembly (51), and the driven end is coaxially fixedly connected to ratchet one (514).

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