Dual-direction wind resistant flexible photovoltaic array synchronous tracking system

Abstract

This invention provides a bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system, relating to the field of photovoltaic technology. It includes: a fixed frame and an active drive device, a passive drive device, and a linkage assembly mounted on the fixed frame. Both the active and passive drive devices include a unidirectional transmission mechanism, which comprises an active rotating component, a counter-clockwise ratchet, a clockwise ratchet, and a wind-resistant limiting component arranged sequentially along the axial direction. The wind-resistant limiting component is coaxially arranged with the active rotating component and is capable of rotating relative to the active rotating component. A unidirectional power transmission structure is provided between the wind-resistant limiting component and the active rotating component, allowing only the active rotating component to actively drive the wind-resistant limiting component to rotate, while preventing the wind-resistant limiting component from rotating relative to the active rotating component.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic technology, and in particular to a bidirectional wind-resistant flexible photovoltaic array synchronous tracking system. Background Technology

[0002] As the global energy structure shifts from traditional fossil fuels to renewable energy, the scale of photovoltaic power plant construction continues to expand. Against the backdrop of limited urban land and the need to increase the proportion of clean energy, flexible cable-supported photovoltaic structures, with their advantages of strong spanning capabilities, low material consumption, adaptability to complex terrain, and minimal ground disturbance, have been widely used in mountainous areas, valleys, elevated bridge decks, and urban mixed-use scenarios. To improve the power generation efficiency of flexible photovoltaic arrays, solar tracking systems are typically incorporated into these projects, enabling the photovoltaic panels to rotate intraday according to changes in the sun's position.

[0003] However, compared to traditional rigid photovoltaic (PV) supports, flexible cable-stayed structures exhibit lower overall stiffness, greater structural flexibility, and more significant wind-induced response. Under wind loads, they are more prone to large-scale swaying and vibration, which can affect the system's operational stability and may even lead to fatigue damage to the PV panel frames or fixed components. During rotational tracking, especially in areas with complex wind environments such as valleys and canyons, sudden strong winds with large angles of attack can further damage the PV panels and their connecting components.

[0004] Existing tracking systems generally struggle to simultaneously meet the dual requirements of "wind-induced safety" and "controllable motor rotation." Tracking mechanisms typically require increased structural degrees of freedom to achieve rotation, but this increased freedom makes the system more susceptible to wind-induced instability under wind loads, necessitating separate wind-resistant measures and increasing structural complexity. Furthermore, while allowing the motor to drive the photovoltaic panel to rotate normally, current technologies often fail to effectively restrict wind-induced reverse rotation, making it difficult to meet safety requirements. Summary of the Invention

[0005] The purpose of this invention is to provide a bidirectional wind-resistant flexible photovoltaic array synchronous tracking system to alleviate the technical problem that existing photovoltaic array synchronous tracking systems are easily blown by the wind, resulting in changes in orientation.

[0006] The present invention provides a bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system, comprising: a fixed frame, and an active drive device, a passive drive device, and a linkage component disposed on the fixed frame; Both the active drive device and the passive drive device include a one-way transmission mechanism. The one-way transmission mechanism includes an active rotating component, a counterclockwise ratchet, a clockwise ratchet, and a wind-resistant limiting component arranged sequentially along the axial direction. The counterclockwise ratchet and the clockwise ratchet are fixedly connected to the fixed frame; The active drive device also includes a motor, which is fixedly connected to the fixed frame and connected to the active rotating component of the active drive device. The active rotating component of the active drive device is linked to the active rotating component of the passive drive device through a linkage component. The wind-resistant limiting component is connected to the photovoltaic panel; the wind-resistant limiting component is coaxially arranged with the active rotating component, and the wind-resistant limiting component can rotate relative to the active rotating component; A one-way power transmission structure is provided between the wind-resistant limiting component and the active rotating component. The one-way power transmission structure only allows the active rotating component to actively drive the wind-resistant limiting component to rotate, while preventing the wind-resistant limiting component from rotating relative to the active rotating component.

[0007] Furthermore, the active rotating component is provided with clockwise limiting posts and counterclockwise limiting posts on the side facing the wind-resistant limiting component, and the clockwise limiting posts and counterclockwise limiting posts are symmetrically arranged with respect to the axis of the active rotating component. The wind-resistant limiting component includes a chassis, a limiting groove extending radially along the active rotating component on the side of the chassis facing the active rotating component, and a rotating shaft located inside the limiting groove and extending along its axial direction. The rotating shaft is provided with a through hole arranged along the length direction of the limiting groove, and a spring is provided in the through hole. A clockwise latch and a counterclockwise latch are slidably connected within the limiting groove along its length, and the clockwise latch and the counterclockwise latch are located on opposite sides of the rotating shaft, respectively; one end of the spring is connected to the clockwise latch, and the other end is connected to the counterclockwise latch; the clockwise latch is provided with a clockwise inclined surface, and the counterclockwise latch is provided with a counterclockwise inclined surface, both of which are set at an angle to the length of the limiting groove; The clockwise buckle is provided with clockwise wedge teeth; the counterclockwise buckle is provided with counterclockwise wedge teeth; the clockwise limiting post is located on the movement path of the clockwise inclined plane, and the counterclockwise limiting post is located on the movement path of the counterclockwise inclined plane; When the active rotating component rotates clockwise, the clockwise limiting post abuts against the clockwise inclined surface and pushes the clockwise latch towards the side closer to the rotating shaft, so that the clockwise wedge teeth separate from the clockwise ratchet; the counterclockwise limiting post abuts against the limiting groove, and the active rotating component drives the wind-resistant limiting component to rotate clockwise; and after the active rotating component stops rotating, the spring pushes the clockwise latch towards the side away from the rotating shaft, and the clockwise wedge teeth engage with the clockwise ratchet; When the active rotating component rotates counterclockwise, the counterclockwise limiting post abuts against the counterclockwise inclined surface and pushes the counterclockwise latch toward the side closer to the rotating shaft, so that the counterclockwise wedge teeth separate from the counterclockwise ratchet; the clockwise limiting post abuts against the limiting groove, and the active rotating component drives the wind-resistant limiting component to rotate counterclockwise; and after the active rotating component stops rotating, the spring pushes the counterclockwise latch toward the side away from the rotating shaft, and the counterclockwise wedge teeth engage with the counterclockwise ratchet.

[0008] Furthermore, there are two active drive devices and multiple passive drive devices, with the multiple passive drive devices arranged sequentially between the two active drive devices; The active drive unit at the far end is connected to the passive drive unit at the far end on the same side via a linkage component; The two adjacent passive drive devices are connected by a linkage component.

[0009] Furthermore, the linkage assembly includes a first transmission wheel, a second transmission wheel, a first movable slide rail, a second movable slide rail, and a linkage component; The first and second transmission wheels are respectively connected to two adjacent active rotating components; Both the first and second movable slides are slidably connected to the fixed frame; a first meshing structure is provided in the first movable slide, and the first meshing structure meshes with the first transmission wheel; a second meshing structure is provided in the second movable slide, and the second meshing structure meshes with the second transmission wheel. The linkage is used to connect the first movable slide and the second movable slide.

[0010] Furthermore, both the first and second transmission wheels are sprockets; Both the first and second meshing structures are chains.

[0011] Furthermore, the linkage component is a row-to-row cable.

[0012] Furthermore, the fixed frame is also provided with a fixed slide groove, and the first movable slide groove and the second movable slide groove are both slidably connected to the fixed slide groove.

[0013] Furthermore, the rotating shaft passes through the active rotating component and is rotatably connected to the fixed frame.

[0014] Furthermore, a bearing is provided between the rotating shaft and the fixed frame.

[0015] Furthermore, the unidirectional transmission mechanism also includes a bracket, which is connected to the wind-resistant limiting component and the photovoltaic panel.

[0016] This invention has at least the following advantages or beneficial effects: The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system provided by this invention includes: a fixed frame, and an active drive device, a passive drive device, and a linkage component disposed on the fixed frame; both the active drive device and the passive drive device include a unidirectional transmission mechanism, the unidirectional transmission mechanism including an active rotating component, a counterclockwise ratchet, a clockwise ratchet, and a wind-resistant limiting component arranged sequentially along the axial direction; the counterclockwise ratchet and the clockwise ratchet are fixedly connected to the fixed frame; the active drive device further includes a motor, the motor being fixedly connected to the fixed frame, and the motor being connected to the active drive device. The active rotating component is connected to the active rotating component of the active drive device, which is linked to the active rotating component of the passive drive device via a linkage assembly; the wind-resistant limiting component is connected to the photovoltaic panel; the wind-resistant limiting component is coaxially arranged with the active rotating component, and the wind-resistant limiting component can rotate relative to the active rotating component; a one-way power transmission structure is provided between the wind-resistant limiting component and the active rotating component, which only allows the active rotating component to actively drive the wind-resistant limiting component to rotate, while preventing the wind-resistant limiting component from rotating relative to the active rotating component.

[0017] When the orientation of the photovoltaic panels needs to be adjusted synchronously, the motor can be started, and its output shaft can be rotated at a preset angle. The active rotating component of the active drive device is driven by the motor to rotate at the preset angle. Synchronously, the active rotating component drives the wind-resistant limiting component to rotate through a unidirectional power transmission structure, thereby driving the photovoltaic panel to rotate. Since the active rotating component of the active drive device is linked to the active rotating component of the passive drive device through a linkage component, the photovoltaic panel on the passive drive device also rotates synchronously by the same angle. Furthermore, since a unidirectional power transmission structure is provided between the wind-resistant limiting component and the active rotating component, power can only be transmitted in one direction. After completing the rotation at the preset angle, the wind-resistant limiting component cannot rotate relative to the active rotating component under wind conditions, avoiding excessive rotation caused by wind and structural damage. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A front view of a bidirectional wind-resistant flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view along the AA direction; Figure 3 A schematic diagram of the wind-resistant limiting component of the bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 4 A schematic diagram of the active rotating component of the bidirectional wind-resistant flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 5 A schematic diagram of the clockwise latch of the bidirectional wind-resistant flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 6 A schematic diagram of the counterclockwise latch of the bidirectional wind-resistant flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 7 A schematic diagram of the first moving chute of the bidirectional wind-resistant flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 8 A schematic diagram of the fixed slide of the bidirectional wind-resistant flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 9 A schematic diagram of a counterclockwise ratchet for a bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 10 A schematic diagram of a clockwise ratchet for a bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 11 A schematic diagram of the active rotating component of the bidirectional wind-resistant flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention before clockwise driving; Figure 12 A schematic diagram of the clockwise driving of the active rotating component in the bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention; Figure 13 This is a schematic diagram of the active rotating component of the bidirectional wind-resistant flexible photovoltaic array synchronous tracking system provided in an embodiment of the present invention after being driven clockwise.

[0020] Icons: 1-Fixed slideway; 2-First moving slideway; 3-Sprocket; 4-Chain; 5-Row cable; 6-Clockwise ratchet; 7-Clockwise buckle; 71-Clockwise inclined plane; 72-Clockwise wedge tooth; 8-Counterclockwise ratchet; 9-Counterclockwise buckle; 91-Counterclockwise inclined plane; 92-Counterclockwise wedge tooth; 10-Active rotating component; 101-Clockwise limiting post; 102-Counterclockwise limiting post; 11-Wind-resistant limiting component; 111-Shaft; 112-Through hole; 113-Limiting groove; 12-Spring; 14-Fixed frame; 15-Motor; 16-Photovoltaic support cable; 17-Bracket; 18-Photovoltaic panel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figures 1-13 As shown, the bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system provided by the present invention includes: a fixed frame 14, and an active drive device, a passive drive device, and a linkage component disposed on the fixed frame 14.

[0028] like Figures 1-3 As shown, in the same row of photovoltaic arrays, there are two active drive devices located at both ends, and multiple passive drive devices arranged sequentially between the two active drive devices. The active drive device at the very end is connected to the passive drive device at the very end on the same side via a linkage assembly; adjacent passive drive devices are also connected via linkage assemblies. In another possible implementation, the number of active drive devices can be more than two; for example, the number of active and passive drive devices can be the same, and they can be arranged alternately. By setting up linkage assemblies, all photovoltaic panels 18 in the same row can maintain the same rotation angle, thereby improving consistency and reducing the number of motors 15 required.

[0029] like Figure 2 As shown, the active drive device and the passive drive device have roughly the same structure. In this embodiment, the difference between the two is that the active drive device also includes a motor 15, while the passive drive device does not include a motor 15.

[0030] like Figure 2 As shown, both the active drive device and the passive drive device include a one-way transmission mechanism. The one-way transmission mechanism includes an active rotating component 10, a counterclockwise ratchet 8, a clockwise ratchet 6, and a wind-resistant limiting component 11 arranged sequentially along the axial direction.

[0031] Taking the active drive device as an example, the housing of the motor 15 is fixed on the mounting frame 14. To the left of the motor 15 is the active rotating component 10, which is fixedly connected to the output shaft of the motor 15, and both have the same rotational state. A wind-resistant limiting component 11 is provided on the left side of the active rotating component 10. A counterclockwise ratchet 8 and a clockwise ratchet 6 are provided circumferentially outside the position between the two components, and the counterclockwise ratchet 8 and clockwise ratchet 6 are fixedly connected to the mounting frame 14.

[0032] The left end of the wind-resistant limiting component 11 is connected to the photovoltaic panel 18. The wind-resistant limiting component 11 is coaxially arranged with the active rotating component 10. A one-way power transmission structure is provided between the wind-resistant limiting component 11 and the active rotating component 10. The one-way power transmission structure only allows the active rotating component 10 to actively drive the wind-resistant limiting component 11 to rotate, while preventing the wind-resistant limiting component 11 from rotating relative to the active rotating component 10.

[0033] like Figures 3-6 , Figures 9-13 As shown, the unidirectional power transmission structure is configured as follows: like Figure 4 As shown, the left side of the active rotating component 10 is provided with a clockwise limiting post 101 and a counterclockwise limiting post 102, and the clockwise limiting post 101 and the counterclockwise limiting post 102 are symmetrically arranged with respect to the axis of the active rotating component 10. Both the clockwise limiting post 101 and the counterclockwise limiting post 102 are cylindrical.

[0034] like Figure 3 As shown, the wind-resistant limiting component 11 includes a chassis, which is vertically arranged. A limiting groove 113 extending radially along the active rotating component 10 is provided on the right side of the chassis, and a rotating shaft 111 located inside the limiting groove 113 and extending along its axial direction is provided. A through hole 112 is provided on the rotating shaft 111 along the length direction of the limiting groove 113, and a spring 12 is provided inside the through hole 112, the length of which is greater than the length of the through hole 112.

[0035] like Figure 5 and Figure 6 As shown, a clockwise latch 7 and a counterclockwise latch 9 are slidably connected within the limiting groove 113 along its length. The clockwise latch 7 and the counterclockwise latch 9 are located on opposite sides of the rotating shaft 111. One end of the spring 12 is connected to the clockwise latch 7, and the other end is connected to the counterclockwise latch 9. In its natural state, the clockwise latch 7 engages with the clockwise ratchet 6, and the counterclockwise latch 9 engages with the counterclockwise ratchet 8.

[0036] A first protrusion is provided on the right side of the clockwise buckle 7, and a clockwise inclined surface 71 is provided on the first protrusion. The clockwise limiting post 101 is located on the movement path of the clockwise inclined surface 71. Symmetrically, a second protrusion is provided on the right side of the counterclockwise buckle 9, and a counterclockwise inclined surface 91 is provided on the second protrusion. The counterclockwise limiting post 102 is located on the movement path of the counterclockwise inclined surface 91. Both the clockwise inclined surface 71 and the counterclockwise inclined surface 91 are set at an angle to the length of the limiting groove 113. In the natural state (when neither the clockwise limiting post 101 nor the counterclockwise limiting post 102 abuts against the clockwise inclined surface 71 and the counterclockwise inclined surface 91), the clockwise inclined surface 71 and the counterclockwise inclined surface 91 are symmetrically arranged with respect to the rotating shaft 111. The clockwise buckle 7 is provided with clockwise wedge teeth 72; the counterclockwise buckle 9 is provided with counterclockwise wedge teeth 92.

[0037] like Figures 11-13 As shown, when the photovoltaic panel 18 needs to be driven to rotate clockwise, the active rotating component 10 rotates clockwise, and the clockwise limiting post 101 abuts against the clockwise inclined surface 71. Guided by the clockwise inclined surface 71, the clockwise limiting post 101 pushes the clockwise latch 7 towards the side closer to the rotating shaft 111, so that the clockwise wedge tooth 72 separates from the clockwise ratchet 6, and the clockwise latch 7 does not engage with the clockwise ratchet 6. Figure 12 As shown. The counterclockwise limiting post 102 abuts against the limiting groove 113, and the counterclockwise wedge tooth 92 is in the same direction as the inclined surface of the counterclockwise ratchet 8, so it has no blocking effect. Therefore, the counterclockwise buckle 9 slides past the counterclockwise ratchet 8. The active rotating component 10 drives the wind-resistant limiting component 11 to rotate clockwise.

[0038] like Figure 13 As shown, after the active rotating component 10 stops rotating, the spring 12 pushes the clockwise latch 7 to move away from the rotating shaft 111. Under the push of the clockwise latch 7, the limiting groove 113 drives the entire wind-resistant limiting component 11 to rotate clockwise by a small angle. The clockwise latch 7 then approaches the clockwise ratchet 6 again, and the clockwise wedge tooth 72 engages with the clockwise ratchet 6. At the same time, the counterclockwise wedge tooth 92 also engages with the counterclockwise ratchet 8. The wind-resistant limiting component 11 is blocked by the clockwise latch 7 and the counterclockwise latch 9, thus preventing it from rotating actively and achieving the effect of unidirectional power transmission.

[0039] Similarly, when the active rotating component 10 rotates counterclockwise, the counterclockwise limiting post 102 abuts against the counterclockwise inclined surface 91, and pushes the counterclockwise latch 9 towards the side closer to the rotating shaft 111, so that the counterclockwise wedge tooth 92 separates from the counterclockwise ratchet 8; the clockwise limiting post 101 abuts against the limiting groove 113, and the active rotating component 10 drives the wind-resistant limiting component 11 to rotate counterclockwise; after the active rotating component 10 stops rotating, the spring 12 pushes the counterclockwise latch 9 towards the side away from the rotating shaft 111, and the counterclockwise wedge tooth 92 engages with the counterclockwise ratchet 8. The principle of counterclockwise rotation is the same as that of clockwise rotation, but the directions are opposite, and the rotation process will not be described in detail.

[0040] like Figure 1 , Figure 7 and Figure 8 The linkage assembly includes a first transmission wheel, a second transmission wheel, a first movable slide 2, a second movable slide, and a linkage member; the first transmission wheel and the second transmission wheel are respectively connected to two adjacent active rotating components 10; the first movable slide 2 and the second movable slide are both slidably connected to the fixed frame 14; a first meshing structure is provided in the first movable slide 2, and the first meshing structure meshes with the first transmission wheel; a second meshing structure is provided in the second movable slide, and the second meshing structure meshes with the second transmission wheel; the linkage member is used to connect the first movable slide 2 and the second movable slide.

[0041] In this configuration, both the first and second transmission wheels can be sprockets 3; both the first and second meshing structures can be chains 4. The linkage can be a row of inter-row cables 5, capable of transmitting tension and thrust. The fixed frame 14 is also provided with a fixed slide groove 1, and both the first and second movable slide grooves are slidably connected to the fixed slide groove 1. Assuming the first transmission wheel is fixedly connected to the active rotating component 10 of the active drive device, and the second transmission wheel is fixedly connected to the active rotating component 10 of the adjacent passive drive device, the first movable slide groove 2 is located below the first transmission wheel. The first transmission wheel meshes with the first meshing structure within the first movable slide groove 2. When the first transmission wheel rotates, it drives the first movable slide groove 2 to move linearly, and the first movable slide groove 2 slides within the fixed slide groove 1. As the first movable slide groove 2 moves linearly, it drives the second slide groove to slide via the linkage. The second meshing structure within the second slide groove drives the second transmission wheel to rotate, and the rotation of the second transmission wheel drives the active rotating component 10 on the passive drive device to drive the photovoltaic panel 18 to rotate synchronously.

[0042] like Figure 2As shown, the rotating shaft 111 passes through the active rotating member 10 and is rotatably connected to the fixed frame 14. Furthermore, a bearing is provided between the rotating shaft 111 and the fixed frame 14 to reduce rotational friction.

[0043] The unidirectional transmission mechanism also includes a bracket 17, which is connected to the wind-resistant limiting member 11, and the bracket 17 is connected to the photovoltaic panel 18 through photovoltaic support cables 16 located at both ends.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bidirectional wind-resistant flexible photovoltaic array synchronous tracking system, characterized in that, include: A fixed frame (14), and an active drive device, a passive drive device and a linkage assembly disposed on the fixed frame (14); Both the active drive device and the passive drive device include a one-way transmission mechanism. The one-way transmission mechanism includes an active rotating component (10), a counterclockwise ratchet (8), a clockwise ratchet (6), and a wind-resistant limiting component (11) arranged sequentially along the axial direction. The counterclockwise ratchet (8) and the clockwise ratchet (6) are fixedly connected to the fixed frame (14); The active drive device also includes a motor (15), which is fixedly connected to the fixed frame (14). The motor (15) is connected to the active rotating component (10) of the active drive device. The active rotating component (10) of the active drive device is linked to the active rotating component (10) of the passive drive device through a linkage component. The wind-resistant limiting component (11) is connected to the photovoltaic panel (18); the wind-resistant limiting component (11) is coaxially arranged with the active rotating component (10), and the wind-resistant limiting component (11) can rotate relative to the active rotating component (10); A one-way power transmission structure is provided between the wind-resistant limiting component (11) and the active rotating component (10). The one-way power transmission structure only allows the active rotating component (10) to actively drive the wind-resistant limiting component (11) to rotate, while preventing the wind-resistant limiting component (11) from rotating relative to the active rotating component (10).

2. The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system according to claim 1, characterized in that, The active rotating component (10) is provided with a clockwise limiting post (101) and a counterclockwise limiting post (102) on the side facing the wind-resistant limiting component (11), and the clockwise limiting post (101) and the counterclockwise limiting post (102) are symmetrically arranged with respect to the axis of the active rotating component (10). The wind-resistant limiting component (11) includes a chassis, and a limiting groove (113) extending radially along the active rotating component (10) is provided on the side of the chassis facing the active rotating component (10), and a rotating shaft (111) located inside the limiting groove (113) and extending along its axial direction. A through hole (112) is provided on the rotating shaft (111) along the length direction of the limiting groove (113), and a spring (12) is provided in the through hole (112). A clockwise latch (7) and a counterclockwise latch (9) are slidably connected within the limiting groove (113) along the length direction of the limiting groove (113). The clockwise latch (7) and the counterclockwise latch (9) are located on opposite sides of the rotating shaft (111). One end of the spring (12) is connected to the clockwise latch (7), and the other end is connected to the counterclockwise latch (9). The clockwise latch (7) is provided with a clockwise inclined surface (71), and the counterclockwise latch (9) is provided with a counterclockwise inclined surface (91). Both the clockwise inclined surface (71) and the counterclockwise inclined surface (91) are set at an angle to the length of the limiting groove (113). The clockwise buckle (7) is provided with clockwise wedge teeth (72); the counterclockwise buckle (9) is provided with counterclockwise wedge teeth (92); the clockwise limiting post (101) is located on the movement path of the clockwise inclined plane (71), and the counterclockwise limiting post (102) is located on the movement path of the counterclockwise inclined plane (91); When the active rotating member (10) rotates clockwise, the clockwise limiting post (101) abuts against the clockwise inclined surface (71) and pushes the clockwise latch (7) toward the side closer to the rotating shaft (111) so that the clockwise wedge tooth (72) separates from the clockwise ratchet (6); the counterclockwise limiting post (102) abuts against the limiting groove (113), and the active rotating member (10) drives the wind-resistant limiting member (11) to rotate clockwise; and after the active rotating member (10) stops rotating, the spring (12) pushes the clockwise latch (7) to move toward the side away from the rotating shaft (111), and the clockwise wedge tooth (72) engages with the clockwise ratchet (6); When the active rotating component (10) rotates counterclockwise, the counterclockwise limiting post (102) abuts against the counterclockwise inclined surface (91) and pushes the counterclockwise latch (9) toward the side closer to the rotating shaft (111) so that the counterclockwise wedge tooth (92) separates from the counterclockwise ratchet (8); the clockwise limiting post (101) abuts against the limiting groove (113), and the active rotating component (10) drives the wind-resistant limiting component (11) to rotate counterclockwise; and after the active rotating component (10) stops rotating, the spring (12) pushes the counterclockwise latch (9) toward the side away from the rotating shaft (111), and the counterclockwise wedge tooth (92) meshes with the counterclockwise ratchet (8).

3. The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system according to claim 2, characterized in that, The number of active drive devices is two, and the number of passive drive devices is multiple, with the multiple passive drive devices arranged sequentially between the two active drive devices. The active drive unit at the far end is connected to the passive drive unit at the far end on the same side via a linkage component; The two adjacent passive drive devices are connected by a linkage component.

4. The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system according to claim 3, characterized in that, The linkage assembly includes a first transmission wheel, a second transmission wheel, a first movable slide (2), a second movable slide, and a linkage component; The first and second transmission wheels are respectively connected to two adjacent active rotating components (10); The first movable slide (2) and the second movable slide are both slidably connected to the fixed frame (14); the first movable slide (2) is provided with a first meshing structure, which meshes with the first transmission wheel; the second movable slide is provided with a second meshing structure, which meshes with the second transmission wheel. The linkage is used to connect the first movable slide (2) and the second movable slide.

5. The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system according to claim 4, characterized in that, The first and second drive wheels are both sprockets (3); Both the first and second meshing structures are chains (4).

6. The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system according to claim 4, characterized in that, The linkage component is the row-to-row cable (5).

7. The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system according to claim 4, characterized in that, The fixed frame (14) is also provided with a fixed slide groove (1), and the first movable slide groove (2) and the second movable slide groove are slidably connected to the fixed slide groove (1).

8. The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system according to claim 2, characterized in that, The rotating shaft (111) passes through the active rotating component (10) and is rotatably connected to the fixed frame (14).

9. The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system according to claim 8, characterized in that, A bearing is provided between the rotating shaft (111) and the fixed frame (14).

10. The bidirectional wind-resistant braking flexible photovoltaic array synchronous tracking system according to claim 1, characterized in that, The unidirectional transmission mechanism also includes a bracket (17), which is connected to the wind-resistant limiting component (11) and the photovoltaic panel (18).

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