A folding solar panel opening and closing traction system

Abstract

The application relates to a folding solar panel opening and closing traction system which comprises a storage frame, solar panels and steel wires, the storage frame is provided with a moving rail, a plurality of groups of the solar panels are arranged on the storage frame, each group of the solar panels is provided with two pieces which are rotationally connected with each other, the two pieces of the solar panels are oppositely arranged, and adjacent two groups of the solar panels are also rotationally connected, the solar panels are provided with rolling wheels which roll on the moving rail, the storage frame and one end of the moving rail away from the storage frame are both provided with a winding and unwinding motor, the output end of the winding and unwinding motor is connected with a winding drum, one end of the steel wire is wound on the winding drum, the two steel wires are both connected with the first group of the solar panels, and a limiting assembly for limiting the included angle between the two pieces of the solar panels is arranged between the two pieces of the solar panels. The application has the effect of improving the applicability of the folding solar panel opening and closing traction system.

Description

Technical Field

[0001] This application relates to the field of solar panel installation technology, and in particular to a traction system for opening and closing folding solar panels. Background Technology

[0002] Solar panels are devices that absorb sunlight and convert solar radiation energy directly or indirectly into electrical energy through the photoelectric effect or photochemical effect. In sunny weather, the folded solar panels need to be unfolded for energy conversion; while in inclement weather, the solar panels need to be folded up to reduce the possibility of damage. This requires a device for opening and closing the solar panels.

[0003] Chinese Patent CN119363002B discloses an automatically unfolding foldable photovoltaic solar panel. It includes photovoltaic panels, with at least two panels arranged alternately on the left and right sides. Connecting columns are symmetrically connected to the leftmost and rightmost photovoltaic panels. Hinges are symmetrically rotatably connected between adjacent photovoltaic panels, with the hinges arranged in an alternating vertical arrangement. A first slider is connected to the bottom of the lower hinge plate. A gear set is installed between adjacent photovoltaic panels. Guide rails are symmetrically arranged below the photovoltaic panels, and these guide rails are used to engage the first slider. This invention, through the cooperation of connecting columns, hinge plates, gear sets, guide rails, a second slider, a moving mechanism, and a limiting mechanism, first installs the guide rails, then installs the photovoltaic panels on the guide rails and the second slider. The moving mechanism then controls the photovoltaic panels to automatically and synchronously unfold and fold, saving time and effort, increasing efficiency, facilitating operator installation, and reducing costs.

[0004] Regarding the aforementioned technologies, existing technologies utilize the cooperation of a servo motor and a lead screw to drive the second slider to move, thereby moving the first solar panel until all solar panels are flattened. However, using a lead screw as a transmission component can lead to deformation if the lead screw is too long, as the middle part of the lead screw may sag. When the second slider passes through the deformed part of the lead screw, the friction of the threaded engagement intensifies, easily damaging the threads and shortening the lifespan of the lead screw. This reduces the moving efficiency of the solar panels and increases cost, hindering the movement of the solar panels and reducing the applicability of the foldable photovoltaic solar panel unfolding structure. Summary of the Invention

[0005] To improve the applicability of the traction system for opening and closing foldable solar panels, this application provides a traction system for opening and closing foldable solar panels.

[0006] This application provides a traction system for opening and closing folding solar panels, employing the following technical solution: A traction system for opening and closing a foldable solar panel includes a storage frame, solar panels, and steel wire ropes. A moving rail is provided on the storage frame. Several groups of solar panels are arranged on the storage frame, with two solar panels in each group, rotatably connected to each other. The two solar panels are arranged opposite each other, and adjacent groups of solar panels are also rotatably connected. Rolling wheels are provided on the solar panels and roll on the moving rails. A take-up / discharge motor is provided inside the storage frame and at the end of the moving rail furthest from the storage frame. The output end of the take-up / discharge motor is connected to a winding drum. One end of the steel wire rope is wound around the winding drum. Both steel wire ropes are connected to the first group of solar panels. A limiting component is provided between the two solar panels to restrict the angle between them.

[0007] By adopting the above technical solution, during deployment, one retractor is activated, driving the winding drum to rotate. A steel wire rope pulls the first group of solar panels to move, and two solar panels rotate and move at a specified obtuse angle after passing through the limiting component until all solar panels are moved out of the storage frame. During this process, the motor inside the storage frame is in the unwinding state. During storage, the retractor inside the storage frame is activated, causing the solar panels to close and move into the storage frame until all solar panels are tightly packed together inside the storage frame, achieving the effect of storing the solar panels. Using the steel wire rope as a transmission means, the length can be reasonably set according to the actual stroke. In addition, the operation of two retractors ensures that the steel wire rope always maintains a certain tension, avoiding the phenomenon of winding due to thermal expansion and contraction, stress and other issues. Compared with the existing screw structure, it reduces wear and maintenance costs and is more adaptable to the laying of solar panels with longer strokes, improving the applicability of the traction system for opening and closing folding solar panels.

[0008] Optionally, both sides of the rolling wheel are connected to limiting plates, and the moving rail is located between the two limiting plates.

[0009] By adopting the above technical solution and using the limiting plate, the possibility of the rolling wheel detaching from the moving rail is reduced.

[0010] Optionally, the moving rail is provided with a plurality of support legs along its length. Each support leg includes a support plate, a support rod, a support nut, and a clamping nut. The support rod is vertically connected to the support plate and passes through the moving rail. The support nut and the clamping nut are both threaded onto the support rod. The moving rail abuts against the support nut. The clamping nut is located above the moving rail and is provided with an anti-loosening washer between itself and the moving rail.

[0011] By adopting the above technical solution, during installation, the moving rail is supported by a support nut, and then the moving rail is restricted by the cooperation of anti-loosening washers and tightening nuts, ensuring that all parts of the moving rail maintain a uniform height along its length, in order to cope with the installation of solar panels on uneven ground.

[0012] Optionally, the storage frame is provided with two sets of fixed pulleys, and a curing cylinder is connected inside the storage frame. The curing cylinder is hollow inside and has several oil grooves on its inner ring wall. The curing cylinder is filled with curing oil, and several oil outlets are provided in the oil grooves. An oil inlet is provided on the curing cylinder, and the wire rope passes through the curing cylinder.

[0013] By adopting the above technical solution, the movement path of the wire rope is restricted by two sets of fixed pulleys, and by setting up a curing cylinder, curing oil is applied to the surface of the wire rope when it moves, which reduces the possibility of oxidation and friction damage to the wire rope and extends its service life.

[0014] Optionally, both ends of the curing cylinder are connected to retaining rings, which are located on the inner ring wall of the curing cylinder. A wiping sponge is provided between the two retaining rings, and the steel wire rope passes through the wiping sponge.

[0015] By adopting the above technical solution, the maintenance oil is soaked in the wiping sponge, and then the steel wire rope is wiped with the wiping sponge, so as to achieve the effect of uniformly applying maintenance oil to the surface of the steel wire rope.

[0016] Optionally, a connecting ring is connected to each end of the curing cylinder within the storage frame, and a wire brush is provided on the inner ring wall of the connecting ring.

[0017] By adopting the above technical solution, with prolonged use, the maintenance oil is affected by dust, forming solid impurities. These solid impurities easily increase the friction between the rope core and the steel wires inside the wire rope, causing the steel wires to break. Wiping with a wire brush can effectively remove solid impurities from the surface of the wire rope, reducing the friction between the wire rope itself or other objects, and extending the service life of the wire rope.

[0018] Optionally, the limiting assembly includes a rotating bolt, a limiting nut, a limiting pin, and an abutment plate. Two fixing plates are connected to one of the solar panels. The rotating bolt passes through the two fixing plates. The limiting nut is threaded onto the rotating bolt. The two fixing plates are located between the limiting nut and the fixing plates. The abutment plate is connected to the other solar panel and is rotatably connected to the rotating bolt. The limiting pin passes between the two fixing plates. The abutment plate is provided with an abutment arc groove that fits against the limiting pin.

[0019] By adopting the above technical solution, when maintaining the angle of the solar panel, the solar panel moves and rotates, and the contact plate rotates with the solar panel until it contacts the arc groove and the limiting pin, thereby limiting the angle between the two solar panels. On the one hand, this makes the solar panel more adaptable to the angle of sunlight, and on the other hand, it ensures that the solar panel can be folded and stored smoothly.

[0020] Optionally, a fixed base is connected inside the storage frame, and an anti-collision spring is connected to the fixed base. When stored, the solar panel presses against the anti-collision spring.

[0021] By adopting the above technical solution, when the solar panel is stored inside the storage frame, the combination of the fixing seat and the anti-collision spring buffers the impact of the solar panel, reducing the possibility of damage to the solar panel, and makes the storage of the solar panel more stable through the reaction force of the anti-collision spring.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. During deployment, one retractor starts, driving the drum to rotate. A steel wire rope pulls the first group of solar panels to move. Two solar panels rotate and move at a specified obtuse angle after passing through the limiting component until all solar panels are removed from the storage frame. During this process, the motor inside the storage frame is in unwinding mode. During storage, the retractor inside the storage frame starts, causing the solar panels to close and move into the storage frame until all solar panels are tightly packed together inside the storage frame, achieving the effect of storing the solar panels. Using a steel wire rope as the transmission means, the length can be reasonably set according to the actual stroke. In addition, the operation of two retractors ensures that the steel wire rope always maintains a certain tension, avoiding the tangling phenomenon of the steel wire rope due to thermal expansion and contraction, stress and other issues. Compared with the existing screw structure, it reduces wear and maintenance costs and is more adaptable to the laying of solar panels with longer strokes, improving the applicability of the traction system for opening and closing folding solar panels. Attached Figure Description

[0023] Figure 1 This is a diagram showing the solar panel deployment state in an embodiment of this application.

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0025] Figure 3 This is an exploded view used in the embodiments of this application to illustrate the structure of the limiting component.

[0026] Figure 4 yes Figure 1 Enlarged view of section B in the middle.

[0027] Figure 5 This is a schematic diagram of the internal structure of the storage frame in an embodiment of this application.

[0028] Figure 6 This is a schematic diagram of the structure of the contact spring and the maintenance cylinder in the embodiments of this application.

[0029] Figure 7 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the curing cylinder.

[0030] Figure 8 This is a diagram showing the solar panel storage state in an embodiment of this application.

[0031] Explanation of reference numerals in the attached diagram: 1. Storage frame; 11. Moving rail; 12. Fixed pulley; 13. Connecting ring; 131. Wire brush; 14. Abutment spring; 2. Solar panel; 21. Limiting plate; 22. Rolling wheel; 3. Wire rope; 4. Support leg; 41. Support plate; 42. Support rod; 43. Support nut; 44. Compression nut; 441. Anti-loosening washer; 5. Limiting component; 51. Rotating bolt; 52. Limiting nut; 53. Limiting pin; 54. Abutment plate; 6. Retractor; 61. Coil; 7. Curing cylinder; 71. Oil tank; 72. Wiping sponge. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0033] This application discloses a traction system for opening and closing a foldable solar panel. (Refer to...) Figure 1 The traction system for opening and closing the folding solar panel includes a storage frame 1, a solar panel 2, and a steel wire rope 3.

[0034] Reference Figure 1 and Figure 2 The storage frame 1 is rectangular in shape and has an outlet on one side. A moving rail 11 is fixedly connected to the outlet. Several support legs 4 are provided along the length of the moving rail 11. Each support leg 4 includes a support plate 41, a support rod 42, a support nut 43, and a clamping nut 44. The support rod is vertically fixed to the support plate 41 and passes through the moving rail 11. An anti-loosening washer 441 is fitted on the support rod 42. The support nut 43 and the clamping nut 44 are both threaded onto the support rod 42. The support nut 43 abuts against the bottom wall of the moving rail 11, and the anti-loosening washer 441 is located between the moving rail 11 and the clamping nut 44.

[0035] Reference Figure 1 and Figure 3Several groups of solar panels 2 are arranged on the moving rail 11. Each group has two solar panels 2, which are arranged opposite each other at an obtuse angle. A limiting component 5 is provided, which includes a rotating bolt 51, a limiting nut 52, a limiting pin 53, and an abutment plate 54. Two fixing plates are fixedly connected to one solar panel 2, and the abutment plate 54 is fixedly connected to the other solar panel 2 and has an abutment groove. The abutment plate 54 is located between the two fixing plates. The rotating bolt 51 and the limiting pin 53 are both inserted between the two fixing plates. The limiting nut 52 is threaded onto the rotating bolt 51. The abutment plate 54 is rotatably connected to the rotating bolt 51, and the abutment groove fits against the limiting pin 53.

[0036] Reference Figure 1 and Figure 4 Two limiting plates 21 are fixedly connected to the solar panel 2. A rolling wheel 22 is hinged between the two limiting plates 21. The rolling wheel 22 rolls on the moving rail 11, which is located between the two fixed plates.

[0037] By setting the limiting component 5, the two solar panels 2 are set at an obtuse angle when unfolded, which can better meet the angle of sunlight and make it easier to fold and store the solar panels 2.

[0038] Reference Figure 1 Both the storage frame 1 and the end of the moving rail 11 are equipped with a take-up and discharge motor 6, which is a geared motor. The output end of the take-up and discharge motor 6 is fixedly connected to a winding drum 61. One end of the steel wire rope 3 is wound on the winding drum 61, and both steel wire ropes 3 are fixedly connected to the first set of solar panels 2.

[0039] Reference Figure 5 , Figure 6 and Figure 7 The storage frame 1 has two sets of fixed pulleys 12, and the steel wire rope 3 on the winding drum 61 inside the storage frame 1 passes through the two sets of fixed pulleys 12. A curing cylinder 7 is fixedly connected to the inner wall of the storage frame 1. The curing cylinder 7 is hollow and has several oil grooves 71 on its inner ring wall, with several oil outlet holes on the inner wall of the oil grooves 71. Both ends of the curing cylinder 7 are fixedly connected to retaining rings, and a wiping sponge 72 is placed between the two retaining rings, through which the steel wire rope 3 passes. The inside of the curing cylinder 7 is filled with curing oil, and an oil inlet is provided on the curing cylinder 7.

[0040] Reference Figure 6 The storage frame 1 is fixedly connected to both ends of the maintenance cylinder 7 with connecting rings 13. A wire brush 131 is fixedly connected to the inner ring wall of the connecting ring 13, and the wire rope 3 passes through the two wire brushes 131. The wire brushes 131 are used to remove solid impurities from the surface of the wire rope 3.

[0041] Reference Figure 6To reduce the possibility of damage to the solar panel 2, several fixed seats are fixedly connected inside the storage frame 1. In this embodiment, two are used as an example. An anti-collision spring 14 is fixedly connected to the side wall of the fixed seat facing the moving rail 11. When storing, the solar panel 2 applies pressure to the anti-collision spring 14. The anti-collision spring 14 is used to buffer the impact force of the solar panel 2 hitting the storage frame 1.

[0042] The implementation principle of a traction system for opening and closing a folding solar panel in this application embodiment is as follows: (Refer to...) Figure 1 and Figure 8 During the spreading process, the external winding and unwinding motor 6 is activated, causing the winding drum 61 to rotate, which in turn drives the first group of solar panels 2 to rotate and move. The contact plate 54 rotates until the contact arc groove fits against the limiting pin 53, making the two solar panels 2 form an obtuse angle. This process is repeated until all solar panels 2 are spread on the moving rail 11. During this process, the winding and unwinding motor 6 inside the storage frame 1 unwinds the steel wire rope 3 to ensure that the steel wire rope 3 maintains a certain tension, thus achieving the effect of spreading the solar panels 2. During the storage process, the winding and unwinding motor 6 inside the storage frame 1 is activated, and the steel wire rope 3 pulls the first group of solar panels 2. The solar panels 2 rotate in the opposite direction and come into contact with each other to enter the storage frame 1, thus achieving the effect of spreading and storing the solar panels 2.

[0043] Using the steel wire rope 3 as a transmission means, the length can be reasonably set according to the actual stroke. In addition, the operation of two take-up and discharge motors 6 ensures that the steel wire rope 3 always maintains a certain tension, avoiding the phenomenon of winding due to thermal expansion and contraction, stress and other issues. Compared with the existing screw structure, it reduces wear and maintenance costs and is more adaptable to the laying of solar panels 2 with longer strokes, thus improving the applicability of the traction system for opening and closing the folding solar panel 2.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A traction system for opening and closing a folding solar panel, characterized in that: The device includes a storage frame (1), solar panels (2), and steel wire ropes (3). A moving rail (11) is provided on the storage frame (1). Several groups of solar panels (2) are arranged on the storage frame (1), with two solar panels (2) in each group, rotatably connected to each other. The two solar panels (2) are arranged opposite each other, and adjacent groups of solar panels (2) are also rotatably connected. Rolling wheels (22) are provided on the solar panels (2), and the rolling wheels (22) roll on the moving rails. On (11), a take-up and discharge motor (6) is provided inside the storage frame (1) and at one end of the moving rail (11) away from the storage frame (1). The output end of the take-up and discharge motor (6) is connected to a winding drum (61). One end of the steel wire rope (3) is wound on the winding drum (61). Both steel wire ropes (3) are connected to the first set of solar panels (2). A limiting component (5) is provided between the two solar panels (2) to limit the angle between the two solar panels (2).

2. The traction system for opening and closing folding solar panels according to claim 1, characterized in that: Both sides of the rolling wheel (22) are connected to a limiting plate (21), and the moving rail (11) is located between the two limiting plates (21).

3. The traction system for opening and closing folding solar panels according to claim 1, characterized in that: The moving rail (11) has several support feet (4) distributed along its length. Each support foot (4) includes a support plate (41), a support rod (42), a support nut (43), and a clamping nut (44). The support rod (42) is vertically connected to the support plate (41) and passes through the moving rail (11). The support nut (43) and the clamping nut (44) are threaded onto the support rod (42). The moving rail (11) abuts against the support nut (43). The clamping nut (44) is located above the moving rail (11) and is provided with an anti-loosening washer (441) between it and the moving rail (11).

4. The traction system for opening and closing folding solar panels according to claim 1, characterized in that: The storage frame (1) is provided with two sets of fixed pulleys (12). The storage frame (1) is connected to a maintenance cylinder (7). The maintenance cylinder (7) is hollow inside and has several oil grooves (71) on its inner ring wall. The maintenance cylinder (7) is filled with maintenance oil. Several oil outlets are provided in the oil grooves (71). An oil inlet is provided on the maintenance cylinder (7). The wire rope (3) passes through the maintenance cylinder (7).

5. The traction system for opening and closing folding solar panels according to claim 4, characterized in that: Both ends of the curing cylinder (7) are connected to retaining rings. The retaining rings are located on the inner ring wall of the curing cylinder (7). A wiping sponge (72) is provided between the two retaining rings. The steel wire rope (3) passes through the wiping sponge (72).

6. The traction system for opening and closing folding solar panels according to claim 4, characterized in that: The storage frame (1) is connected to a connecting ring (13) at each end of the maintenance tube (7), and a wire brush (131) is provided on the inner ring wall of the connecting ring (13).

7. The traction system for opening and closing folding solar panels according to claim 1, characterized in that: The limiting component (5) includes a rotating bolt (51), a limiting nut (52), a limiting pin (53), and an abutment plate (54). Two fixing plates are connected to one of the solar panels (2). The rotating bolt (51) passes through the two fixing plates. The limiting nut (52) is threaded onto the rotating bolt (51). The two fixing plates are located between the limiting nut (52) and the fixing plates. The abutment plate (54) is connected to the other solar panel (2) and is rotatably connected to the rotating bolt (51). The limiting pin (53) passes between the two fixing plates. The abutment plate (54) is provided with an abutment arc groove, which fits against the limiting pin (53).

8. The traction system for opening and closing folding solar panels according to claim 1, characterized in that: The storage frame (1) is connected to a fixed base, and a retaining spring (14) is connected to the fixed base. When storing, the solar panel (2) presses against the retaining spring (14).

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