Modularized photovoltaic system capable of being rapidly deployed

Abstract

The invention belongs to the technical field of photovoltaic equipment, and particularly relates to a modular photovoltaic system capable of being rapidly deployed. In the modularized photovoltaic system capable of being deployed quickly, a plurality of photovoltaic panels are all arranged on a shear fork mechanism in a shear fork type supporting frame, the shear fork type supporting frame provided with the photovoltaic panels and a traction driving mechanism jointly form a modularized photovoltaic unit, and the modularized photovoltaic unit is integrally arranged on a fixed support; according to the modularized photovoltaic system capable of being rapidly deployed, the fixed support can be directly carried by a trailer to transfer the modularized photovoltaic system, and meanwhile, the action end of the traction driving mechanism is connected with the action end of the shear fork type supporting frame, so that the traction driving mechanism can drive the shear fork type supporting frame to stretch out and draw back during action; the switching of the unfolding state and the folding state of the scissor-fork type support frame is completed, so that the adjustment of the layout state of the photovoltaic panel is completed, the rapid deployment of the photovoltaic unit is realized, that is, the rapid deployment of the modular photovoltaic system is completed, and the requirements of emergency power supply, field operation and other scenes on the rapid deployment of energy are met.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic equipment technology, and specifically relates to a modular photovoltaic system that can be deployed quickly. Background Technology

[0002] Photovoltaic systems are power generation systems that use solar cell arrays to convert solar radiation energy into electrical energy, and are one of the core technologies in the current global energy transition.

[0003] Currently, in common photovoltaic systems, all photovoltaic panels need to be fixed individually, resulting in long deployment cycles and immobility, which cannot meet the needs of rapid energy deployment in scenarios such as emergency power supply and field operations. Summary of the Invention

[0004] This invention provides a modular photovoltaic system that can be deployed quickly, in order to solve the technical problem that all photovoltaic panels in existing photovoltaic systems need to be fixed individually, resulting in long deployment cycles and immobility, which cannot meet the needs of rapid energy deployment in scenarios such as emergency power supply and field operations.

[0005] This invention is achieved through the following technical solution: A modular photovoltaic system that can be deployed quickly includes a fixed support, a scissor-type support frame, photovoltaic panels, and a traction drive mechanism; The scissor lift support frame includes a boom and a scissor mechanism; there are two booms, both of which are mounted on fixed supports and are arranged parallel to each other; the scissor mechanism is mounted between the two booms, and the moving end of the scissor mechanism can extend and retract along the long axis of the boom. There are multiple photovoltaic panels, and all of them are mounted on the scissor lift mechanism. The traction drive mechanism is mounted on a fixed support. The actuating end of the traction drive mechanism is connected to the actuating end of the scissor mechanism to drive the actuating end of the scissor mechanism to switch between the unfolded and folded states, thereby adjusting the photovoltaic panel layout.

[0006] To better realize the present invention, further optimizations are made to the above structure, wherein the scissor mechanism includes multiple frames; The two opposite side walls of the frame are each equipped with a sliding shaft, a first hinge shaft, and a second hinge shaft; The sliding shaft is located in the middle of the side wall, and a linkage rod that rotates around the axis of the sliding shaft is provided on the sliding shaft; The first hinge axis and the second hinge axis are respectively arranged near the two ends of the side wall; Multiple frames are slidably disposed between two main arms along the long axis of the main arms via sliding shafts and cooperation with the main arms; the two ends of the linkage rod are respectively hinged to the first hinge shaft and the second hinge shaft on two adjacent frames, and the photovoltaic panel is disposed in the frame; A sliding shaft on one of the frames near the fixed end of the boom is fixed to the boom; the actuating end of the traction drive mechanism is connected to a sliding shaft on one of the frames away from the fixed end of the boom, so as to drive multiple frames to move synchronously away from or near the fixed end of the boom, thereby realizing the switching between the unfolded and folded states of the scissor lift mechanism.

[0007] To better realize the present invention, the above structure is further optimized, and the axis of the sliding shaft is located at the midpoint of the side wall; The distance from the axis of the first hinge shaft to the axis of the slide shaft is equal to the distance from the axis of the second hinge shaft to the axis of the slide shaft.

[0008] To better realize the present invention, further optimization is made to the above structure. The upper arm is provided with a slide rail, the long axis of the slide rail is parallel to the long axis of the upper arm, and the cross-sectional shape of the slide rail is an inverted "V" shape. The slide shaft is equipped with rollers that rotate around its axis, and the cross-sectional shape of the roller's rolling surface matches the cross-sectional shape of the slide rail; the slide shaft is slidably mounted on the boom through the cooperation of the rollers and the slide rail.

[0009] To better realize the present invention, the above structure is further optimized by providing a bending-resistant reinforcement along the upper edge of the frame to increase the frame's resistance to bending deformation.

[0010] To better realize the present invention, the above structure is further optimized, and the bending-resistant reinforcement includes a connecting plate, an inclined plate and a folded plate; The major axis of the inclined plate is parallel to the major axis of the connecting plate, the fixed side of the inclined plate is connected to one side of the connecting plate, and the inclined plate and the connecting plate are not in the same plane. The major axis of the folding plate is parallel to the major axis of the inclined plate. One side of the folding plate is connected to the movable side of the inclined plate, and the folding plate and the inclined plate are not in the same plane. The fixed side and the movable side are the two opposite sides of the inclined plate. The mounting surface of the connecting plate is attached to the upper edge of the frame.

[0011] To better realize the present invention, further optimizations are made to the above structure. The traction drive mechanism includes a double drum winch, a first fixed pulley, a second fixed pulley, a third fixed pulley, a fourth fixed pulley, a fifth fixed pulley, a sixth fixed pulley, and a seventh fixed pulley. The two booms are the side beam and the middle beam, respectively; the double-drum winch is mounted on a fixed support and is located on the side beam away from the middle beam; The first and third fixed pulleys are both located at the fixed ends of the side beam, while the second fixed pulley is located at the free end of the side beam. The fourth, sixth, and seventh fixed pulleys are all located at the fixed end of the middle beam, while the fifth fixed pulley is located at the free end of the middle beam. A pull rope is wound on one of the drums of the double-drum winch. The other end of the pull rope passes sequentially over the first, second, third, seventh, sixth, fifth, and fourth fixed pulleys before being wound around the other drum of the double-drum winch. The portion of the pull rope between the second and third fixed pulleys corresponding to the operating end of the scissor mechanism, and the portion of the pull rope between the fourth and fifth fixed pulleys corresponding to the operating end of the scissor mechanism, are both connected to the operating end of the scissor mechanism.

[0012] To better realize the present invention, the above structure is further optimized by providing limiters at both ends of the side beam, and the limiters are connected to the control system signal of the double drum winch.

[0013] To better realize the present invention, the above structure is further optimized, and the upper arm includes a fixed section and a hinged section; The fixed section is set on the fixed support. When the scissor mechanism is in the folded state, the scissor mechanism is mounted on the fixed section of the two booms. The fixed end of the hinge section is hinged to one end of the fixed section via a hinge shaft, the axis of which is perpendicular to the horizontal plane; the bottom of the hinge section is detachably equipped with multiple support rods, which are arranged at equal intervals along the long axis of the hinge section.

[0014] To better realize the present invention, the above structure is further optimized by incorporating the lower edge of the hinge segment that slopes upward from the fixed end to the free end of the hinge segment.

[0015] Compared with the prior art, the present invention has the following advantages: This invention provides a rapidly deployable modular photovoltaic system in which multiple photovoltaic panels are mounted on scissor lift mechanisms within a scissor lift support frame. The scissor lift support frame with photovoltaic panels and the traction drive mechanism together constitute a modular photovoltaic unit, integrated onto a fixed support. This allows the rapidly deployable modular photovoltaic system to be transported directly by a trailer mounted on the fixed support. Simultaneously, the actuating end of the traction drive mechanism is connected to the actuating end of the scissor lift mechanism, enabling the traction drive mechanism to drive the scissor lift mechanism to extend and retract during operation, switching between the extended and folded states of the scissor lift mechanism to adjust the arrangement of the photovoltaic panels and achieve rapid deployment of the photovoltaic unit. In other words, this enables the rapid deployment of the modular photovoltaic system, thereby meeting the needs for rapid energy deployment in scenarios such as emergency power supply and field operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the modular photovoltaic system that can be quickly deployed according to the present invention in its operational state.

[0017] Figure 2 yes Figure 1A magnified view of part A in the middle.

[0018] Figure 3 This is a top view of a modular photovoltaic system that can be quickly deployed according to the present invention in use.

[0019] Figure 4 This is a schematic diagram of the modular photovoltaic system of the present invention in its stowed state, which can be quickly deployed.

[0020] Figure 5 yes Figure 4 A magnified view of part B in the middle.

[0021] Figure 6 This is a schematic diagram of the scissor mechanism in a modular photovoltaic system that can be deployed quickly according to the present invention.

[0022] Figure 7 yes Figure 6 A magnified view of part C in the middle.

[0023] Figure 8 This is a schematic diagram of the structure of the boom in a modular photovoltaic system that can be quickly deployed according to the present invention.

[0024] Figure 9 This is a side view of the boom of a modular photovoltaic system that can be quickly deployed according to the present invention.

[0025] Figure 10 This is a schematic diagram of the bending-resistant reinforcement in a modular photovoltaic system that can be deployed quickly according to the present invention.

[0026] Figure 11 This is a side view of the scissor-type support frame in the deployed state of a modular photovoltaic system that can be quickly deployed according to the present invention.

[0027] Figure 12 yes Figure 11 A magnified view of part D in the middle.

[0028] Figure 13 This is a force data diagram of the upper hinge point in the X direction during the simulation of a bottom-supported scissor lift mechanism.

[0029] Figure 14 This is a force data diagram of the upper hinge point in the Y direction during the simulation of a bottom-supported scissor lift mechanism.

[0030] Figure 15 This is a force data diagram of the middle hinge point in the X direction during the simulation of a bottom-supported scissor lift mechanism.

[0031] Figure 16 This is a force data diagram of the middle hinge point in the Y direction during the simulation of a bottom-supported scissor lift mechanism.

[0032] Figure 17 This is a simulation diagram of the force data of the lower hinge point in the X direction during the simulation of a bottom-supported scissor lift mechanism.

[0033] Figure 18 This is a simulation diagram of the force data of the lower hinge point in the Y direction during the simulation of a bottom-supported scissor lift mechanism.

[0034] Figure 19 This is a diagram showing the traction force data required for the movement of a bottom-supported scissor lift mechanism during simulation.

[0035] Figure 20 This is a diagram showing the force data of the upper hinge point in the X direction during the simulation of a scissor lift support frame.

[0036] Figure 21 This is a diagram showing the force data of the upper hinge point in the Y direction during the simulation of a scissor lift support frame.

[0037] Figure 22 This is a diagram showing the force data of the middle hinge point in the X direction during the simulation of a scissor lift support frame.

[0038] Figure 23 This is a diagram showing the force data of the middle hinge point in the Y direction during the simulation of a scissor lift support frame.

[0039] Figure 24 This is a simulation diagram of the force data of the lower hinge point in the X direction during the simulation of a scissor lift support frame.

[0040] Figure 25 This is a simulation diagram of the force data of the lower hinge point in the Y direction during the simulation of a scissor lift support frame.

[0041] Figure 26 This is a diagram showing the traction force data required for the movement of a scissor lift frame during simulation.

[0042] Figure 27 Simulation results of frame deformation in Experiment 1.

[0043] Figure 28 Simulation results of frame deformation in Experiment 2.

[0044] Figure 29 Simulation results of frame deformation in Experiment 3.

[0045] Figure 30 Simulation results of frame deformation in Experiment 4.

[0046] Figure 31 Simulation results of frame deformation in Experiment 5.

[0047] Figure 32 Simulation results of frame deformation in Experiment 6.

[0048] In the picture: 1. Fixed support; 2. Scissor lift support frame; 21. Boom; 211. Slide rail; 212. Fixed section; 213. Hinge section; 22. Scissor lift mechanism; 221. Frame; 2211. Slide shaft; 22111. Roller; 2212. First hinge shaft; 2213. Second hinge shaft; 222. Linkage rod; 23. Bending-resistant reinforcement; 231. Connecting plate; 232. Inclined plate; 233. Folding plate; 234. Adhesive plate; 235. Process hole; 24. Support rod; 3. Photovoltaic panel; 4. Traction drive mechanism; 41. Double drum winch; 42. First fixed pulley; 43. Second fixed pulley; 44. Third fixed pulley; 45. Fourth fixed pulley; 46. Fifth fixed pulley; 47. Sixth fixed pulley; 48. Seventh fixed pulley. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0050] In embodiments of the present invention, such as Figures 1 to 12 As shown, the rapidly deployable modular photovoltaic system includes a fixed support 1, a scissor-type support frame 2, photovoltaic panels 3, and a traction drive mechanism 4. The scissor-type support frame 2 includes a boom 21 and a scissor mechanism 22. There are two booms 21, both mounted on the fixed support 1, arranged parallel to each other. The scissor mechanism 22 is mounted between the two booms 21. The fixed end of the scissor mechanism 22 is fixedly mounted on the fixed end of the boom 21, and the moving end of the scissor mechanism 22 can extend and retract along the long axis of the boom 21. The fixed end and the moving end of the scissor mechanism 22 are opposite ends of the scissor mechanism 22; as the name suggests, the fixed end of the scissor mechanism 22 is stationary, and the moving end is movable. There are multiple photovoltaic panels 3, and all of them are mounted on the scissor mechanism 22. The deployment status can be adjusted by means of the action of the scissor mechanism 22. The traction drive mechanism 4 is mounted on the fixed support 1. The actuating end of the traction drive mechanism 4 is connected to the actuating end of the scissor mechanism 22. The traction drive mechanism 4 and the scissor support frame 2 with photovoltaic panels 3 together constitute a modular photovoltaic unit.

[0051] In emergency situations or field operations where rapid deployment of energy (solar power) is required, a trailer can be used to transport the rapidly deployable modular photovoltaic system to the destination. Specifically, the fixed support 1 carrying the photovoltaic units is placed on the trailer frame. At this point, the rapidly deployable modular photovoltaic system is in its stowed state. See [link to documentation]. Figure 4 It can be transported to its destination using a trailer; Of course, to ensure the proper storage of this rapidly deployable modular photovoltaic system, the aforementioned boom 21 includes a fixed section 212 and a hinged section 213, see [link / reference]. Figure 9 The fixed section 212 is mounted on the fixed support 1; the fixed end of the hinge section 213 is hinged to one end of the fixed section 212 via a hinge shaft, the axis of which is perpendicular to the horizontal plane. When the scissor lift mechanism 22 is in the folded state, it is mounted on the fixed section 212 of the two booms 21. The operator can rotate the hinge section 213 around the axis of the hinge shaft, causing the hinge section 213 to fit tightly against the side wall of the fixed support 1, thus retracting the scissor lift support frame 2. (See attached image) Figure 4 This reduces the space occupied by the scissor-type support frame 2, making the transport of this rapidly deployable modular photovoltaic system more convenient.

[0052] When the rapidly deployable modular photovoltaic system arrives at its destination, the fixed support 1 of the photovoltaic unit is placed on the ground, and the hinge section 213 of the boom 21 is unfolded. Then, the traction drive mechanism 4 is activated to drive the scissor mechanism 22 from the folded state to the unfolded state. Multiple photovoltaic panels 3 are unfolded together to the usable state under the drive of the scissor mechanism 22, allowing sunlight to shine on the photovoltaic panels 3. (See also...) Figure 1 This enables the rapid deployment of photovoltaic units, that is, the rapid deployment of this modular photovoltaic system; When the modular photovoltaic system that can be quickly deployed needs to be transported again, the traction drive mechanism 4 can be controlled to drive the scissor mechanism 22 from the unfolded state to the folded state. Multiple photovoltaic panels 3 are brought together by the scissor mechanism 22 to become a stowed state. Then the hinge section 213 in the boom 21 is folded to reduce the space occupied by the modular photovoltaic system that can be quickly deployed, so as to quickly stow the modular photovoltaic system and load it onto the trailer for transport. This rapidly deployable modular photovoltaic system can be deployed and stored quickly, shortening the deployment cycle, and can be moved as needed to meet the demand for rapid energy deployment in scenarios such as emergency power supply and field operations.

[0053] It is worth noting that the aforementioned scissor mechanism 22 is a mechanical structure based on the linkage principle, consisting of multiple cross-connected rods linked by hinges (revolute joints), and named for its resemblance to scissors. Its core features are expandability and foldability. Driven by a power source (such as a cylinder or servo motor), it can achieve multiple functions such as lifting, pitch adjustment, and hoisting. In this embodiment, multiple photovoltaic panels 3 are mounted on the scissor mechanism 22. By adjusting the extension (pitch adjustment) of the scissor mechanism 22, the state of the multiple photovoltaic panels 3 is changed, enabling the rapid deployment and storage of this modular photovoltaic system.

[0054] In this embodiment, the fixed support 1 is a container to facilitate the loading and placement of the modular photovoltaic system that can be quickly deployed. The scissor support 2 and the traction drive mechanism 4 are both located on the upper surface of the container.

[0055] Of course, multiple photovoltaic units can also be installed on the fixed support 1, such as Figure 1 , Figure 3 and Figure 4 As shown, this is to improve the power generation of the modular photovoltaic system that can be deployed quickly.

[0056] The two large arms 21 mentioned above are the side beam and the middle beam, respectively. When setting up multiple sets of photovoltaic units, the two scissor-type support frames 2 of the two sets of photovoltaic units located on the same side of the fixed support 1 can be combined. That is, one middle beam is omitted, and one side of the scissor mechanism 22 of two adjacent scissor-type support frames 2 is mounted on the same middle beam. See Figure 1 and Figure 3 This reduces material usage (saving one central beam) and improves the structural stability of the rapidly deployable modular photovoltaic system. During the stowage of the scissor-lift support 2, the central beam can be folded twice and fitted into the folded scissor mechanism 22, see [link to documentation]. Figure 4 This ensures that the storage space on both side beams is not affected.

[0057] Preferably, the bottom of the aforementioned hinge section 213 is detachably provided with a plurality of support rods 24, see [reference]. Figure 1 When the scissor support frame 2 is deployed, multiple support rods 24 are arranged at equal intervals along the long axis of the hinge section 213, and the hinge section 213 is supported by multiple support rods 24, so as to make the structure of the scissor support frame 2 more stable.

[0058] In some embodiments, the scissor mechanism 22 described above includes a plurality of frames 221, see [link to documentation]. Figure 6 The frame 221 has two opposite sidewalls, each equipped with a sliding shaft 2211, a first hinge shaft 2212, and a second hinge shaft 2213. The sliding shaft 2211 is located in the middle of the sidewall, and a linkage rod 222 that rotates around the axis of the sliding shaft 2211 is provided on the sliding shaft 2211. In this embodiment, the length of the linkage rod 222 is equal to the length of the sidewall of the frame 221. The first hinge shaft 2212 and the second hinge shaft 2213 are respectively arranged near the two ends of the sidewall. Multiple frames 221 are slidably disposed between two large arms 21 along the long axis of the large arm 21 through the cooperation of sliding shafts 2211 and large arms 21; the two ends of the linkage rod 222 are respectively hinged to the first hinge shaft 2212 and the second hinge shaft 2213 on the two adjacent frames 221. That is, the two ends of the linkage rod 222 on the middle frame 221 are respectively hinged to the first hinge shaft 2212 on the adjacent frame 221 in front of it and the second hinge shaft 2213 on the adjacent frame 221 behind it, so as to realize the linkage of multiple frames 221. The photovoltaic panel 3 is disposed in the frame 221. The actuating end of the traction drive mechanism 4 is connected to the sliding shaft 2211 on a frame 221 away from the fixed end of the boom 21, so as to pull multiple frames 221 to move synchronously away from or close to the fixed end of the boom 21, thereby realizing the switching between the unfolded state and the folded state of the scissor mechanism 22.

[0059] When multiple photovoltaic panels 3 are bonded together, see Figure 4 Multiple frames 221 are arranged vertically and closely attached to each other to reduce the space occupied by the scissor mechanism 22; When it is necessary to deploy the photovoltaic panel 3, a frame 221 away from the fixed end of the boom 21 can be driven by the traction drive mechanism 4 to drive multiple frames 221 in tandem. During the tandem deployment of multiple frames 221, the sliding shaft 2211 on the frame 221 slides along the length of the boom 21, so that the scissor mechanism 22 unfolds smoothly, and the photovoltaic panel 3 unfolds accordingly. See [link to relevant documentation]. Figure 1 and Figure 3 At this time, multiple frames 221 are tilted, and the scissor mechanism 22 fills the space between the two large arms 21; In the scissor-type support frame 2, the sliding shaft 2211 in the middle of the two side walls of the frame 221 is the load-bearing point, which can reduce or eliminate the change in the overall center of gravity height of the frame 221 and the photovoltaic panel 3 when the scissor mechanism 22 is in operation, and reduce the hinge force on the sliding shaft 2211, the first hinge shaft 2212 and the second hinge shaft 2213 on the frame 221, thereby improving the service life of the scissor-type support frame 2.

[0060] It should be noted that in the existing bottom-supported scissor lift mechanism, the load-bearing point is located at the bottom hinge point of the scissor lift mechanism 22, while the center of gravity of the bottom-supported scissor lift mechanism is located at the middle hinge point, which is a certain distance away from the bottom hinge point. When the bottom-supported scissor lift mechanism moves (extends and retracts), the height of its center of gravity changes significantly, resulting in a large hinge force on each hinge point, which makes each hinge point of the bottom-supported scissor lift mechanism prone to damage. In this embodiment, the frame 221 and the photovoltaic panel 3 together constitute a unit component. The sliding shaft 2211 in the middle of the two side walls of the frame 221 is used as the load-bearing point. The load-bearing point is close to or at the same height as the center of mass of the unit component, which can effectively cope with changes in the height of the center of mass and significantly reduce the work done by gravity. When the scissor mechanism 22 operates, it can effectively reduce the hinge force on the sliding shaft 2211, the first hinge shaft 2212 and the second hinge shaft 2213 on the frame 221, thereby improving the service life of the scissor support frame 2.

[0061] To better illustrate the changes in the hinge forces at each hinge point on the scissor-type support frame 2 (compared to the hinge forces at each hinge point on the bottom-supported scissor mechanism in the prior art), simulation software is used to simulate both the bottom-supported scissor mechanism and the scissor-type support frame 2 of this invention. Figures 13 to 25 As shown; the specific simulation method is as follows: The bottom-supported scissor mechanism and the scissor support frame 2 each have 10 frames 221. The 10 frames 221 are numbered from 1 to 10, arranged sequentially from the fixed end of the upper arm 21 to the free end of the upper arm 21. The first hinge axis 2212 of the frame 221 is the upper hinge point, the second hinge axis 2213 of the frame 221 is the lower hinge point, and the sliding shaft 2211 of the frame 221 is the middle hinge point. In the bottom-supported scissor lift mechanism, the frame 221 is slidably disposed between the two main arms 21 along the long axis of the main arms 21 through the engagement of the lower hinge point with the main arms 21; in the scissor lift support frame 2 provided by the present invention, the frame 221 is slidably disposed between the two main arms 21 along the long axis of the main arms 21 through the engagement of the middle hinge point with the main arms 21. The simulation results obtained are as follows: Among the upper hinge points of the bottom-supported scissor lift mechanism, the upper hinge point of frame 10 (221) experiences the largest hinge force in the X direction (horizontal direction), which is 635490.00 N. The upper hinge point of frame 1 (221) experiences the largest hinge force in the Y direction (vertical direction), which is 201700.00 N. See [references to be inserted here] for details. Figure 13 and Figure 14 ; Among the intermediate hinge points of the bottom-supported scissor lift mechanism, the intermediate hinge point of frame 10 221 experiences the largest hinge force in the X direction, at 1307000N, while the intermediate hinge point of frame 1 221 experiences the largest hinge force in the Y direction, at 379290N. See [references to be inserted here] for details. Figure 15 and Figure 16 ; Among the lower hinge points of the bottom-supported scissor lift mechanism, the lower hinge point of frame 10 221 experiences the largest hinge force in the X direction, at 635400.00 N, while the middle hinge point of frame 1 221 experiences the largest hinge force in the Y direction, at 177980.000 N. See [references to be inserted here] for details. Figure 17 and Figure 18 ; The maximum traction force required for the bottom-supported scissor lift mechanism during operation is 1.869E+05N, which is 1.869 × 10⁻⁵ N. 5 N, see N. Figure 19 ; In the scissor-type support frame 2 provided by this invention, the upper hinge point of frame 3 221 experiences the largest hinge force in the X direction, which is 1811.60 N, and the upper hinge point of frame 3 221 experiences the largest hinge force in the Y direction, which is 863.22 N. See [references to other sources]. Figure 20 and Figure 21 ; In the scissor-type support frame 2 provided by the present invention, the hinge point of frame 221 experiences the greatest hinge force in the X direction (1960.59 N) and the greatest hinge force in the Y direction (659.51 N). See [references to other sources]. Figure 22 and Figure 23 ; In the scissor-type support frame 2 provided by this invention, the lower hinge point of frame 4 221 experiences the largest hinge force in the X direction, which is 1814.14 N, while the middle hinge point of frame 3 221 experiences the largest hinge force in the Y direction, which is 869.75 N. See [references to other specifications]. Figure 24 and Figure 25 ; The scissor-type support frame 2 provided by this invention requires a maximum traction force of 496.09 N during operation. (See [link]). Figure 26 It is significantly less than the pulling force required by the bottom-supported scissor lift mechanism during operation; at the same time, by Figures 13 to 26 The data shows that when the bottom-supported scissor lift mechanism is in operation, some hinge points are subjected to extremely high forces, reaching 1307000N. The force on all hinge points of the scissor support frame 2 provided by the present invention is significantly reduced compared with the bottom support type scissor mechanism, and the maximum value is 1680.46N. Therefore, it can effectively improve the service life of the scissor support frame 2.

[0062] It should be noted that, Figures 13 to 26 In the data, the minus sign (-) indicates direction. Figure 19 The values ​​in the text are expressed in scientific notation, where "E" represents "multiplied by a power of 10" and "+05" indicates an exponent of 5.

[0063] In some embodiments, the axis of the aforementioned sliding shaft 2211 is located at the midpoint of the sidewall, see [reference]. Figure 6 This configuration ensures that the load-bearing point and the center of mass of the unit are at the same height, which better copes with changes in the height of the center of mass and significantly reduces the work done by gravity. The distance from the axis of the first hinge shaft 2212 to the axis of the sliding shaft 2211 is equal to the distance from the axis of the second hinge shaft 2213 to the axis of the sliding shaft 2211, so that the two adjacent frames 221 can move synchronously and realize the change of the state of the scissor mechanism 22.

[0064] In some embodiments, the aforementioned upper arm 21 is provided with a slide rail 211, the major axis of which is parallel to the major axis of the upper arm 21, and the cross-sectional shape of the slide rail 211 is an inverted "V" shape. (See also...) Figure 9 ; A roller 22111 is provided on the slide shaft 2211, which rotates around the axis of the slide shaft 2211. The cross-sectional shape of the rolling surface of the roller 22111 matches the cross-sectional shape of the slide rail 211. (See [reference]) Figure 7 The sliding shaft 2211 is slidably mounted on the boom 21 through the cooperation of the roller 22111 and the slide rail 211; the roller 22111 contacts the slide rail 211 through its rolling surface and is locked on the slide rail 211 to limit the sliding direction of the roller 22111.

[0065] It should be noted that the rolling surface of the roller 22111 mentioned above refers to the circumferential surface of the roller 22111.

[0066] Preferably, a cover plate is provided on the upper arm 21; wherein, the cover plate is located above the slide rail 211, the distance between the lowest point of the slide rail 211 and the cover plate is greater than the diameter of the roller 22111, and the distance between the highest point of the slide rail 211 and the cover plate is less than the diameter of the roller 22111, so that the roller 22111 can roll smoothly on the slide rail 211, and at the same time, it can effectively prevent the roller 22111 from falling off the slide rail 211, so as to make the structure of the scissor support frame 2 more stable.

[0067] In some embodiments, the upper edge of the frame 221 is provided with a bending-resistant reinforcement 23 to increase the bending deformation resistance of the frame 221. See [link to relevant documentation]. Figure 2 , Figure 5 and Figure 6 ; The bending-resistant reinforcement 23 can form an integral force-bearing system with the frame 221, significantly improving the overall rigidity of the frame 221 and enhancing the bending deformation resistance of the frame 221 in both the unfolded and folded states of the scissor mechanism 22, thus meeting the bending deformation resistance requirements of the frame 221.

[0068] In some embodiments, the aforementioned bending-resistant reinforcement 23 includes a connecting plate 231, an inclined plate 232, and a folded plate 233, see [reference]. Figure 5 , Figure 10 and Figure 12 The major axis of the inclined plate 232 is parallel to the major axis of the connecting plate 231, the fixed side of the inclined plate 232 is connected to one side of the connecting plate 231, and the inclined plate 232 and the connecting plate 231 are not in the same plane. The major axis of the folding plate 233 is parallel to the major axis of the inclined plate 232. One side of the folding plate 233 is connected to the movable side of the inclined plate 232, and the folding plate 233 and the inclined plate 232 are not in the same plane. The fixed side and the movable side are the two opposite sides of the inclined plate 232. The mounting surface of the connecting plate 231 is connected to the upper edge of the frame 221. In use, the connecting plate 231 in the bending-resistant reinforcement 23 is installed on one side of the frame 221. Specifically, the movable surface of the connecting plate 231 is attached to the upper edge of the frame 221 and fixed by welding or riveting to achieve a tight connection between the bending-resistant reinforcement 23 and the frame 221. Since the connecting plate 231 on the fixed side of the inclined plate 232 and the folding plate 233 on the movable side are not in the same plane as the inclined plate 232, the bending structure on the fixed side and the movable side of the inclined plate 232 can increase the strength of the bending-resistant reinforcement 23 itself. When it is installed on the frame 221, the bending-resistant reinforcement 23 can form an integral force system with the frame 221, significantly improving the overall rigidity of the frame 221 and providing a good anti-bending deformation effect for the frame 221, thereby meeting the anti-bending deformation requirements of the frame 221.

[0069] It should be noted that when the scissor lift mechanism 22 is in the folded state, the multiple frames 221 mounted on the scissor lift mechanism 22 are all in a vertical state (the frames 221 are perpendicular to the horizontal plane or nearly perpendicular to the horizontal plane), see [reference]. Figure 4 and Figure 5 In this case, the plane where the connecting plate 231 is located and the upper edge of the frame 221 are both in a horizontal state (parallel to or close to the horizontal plane). The bending resistance of the connecting plate 231 is limited. However, the inclined plate 232 and the folded plate 233 provided on the side of the connecting plate 231 can effectively increase the moment of inertia of the frame 221, thereby improving the frame 221's ability to resist bending deformation. When the scissor lift mechanism 22 is in the deployed state, the multiple frames 221 mounted on the scissor lift mechanism 22 are all in an inclined state (the frames 221 form an angle with the horizontal plane). See Figure 6 , Figure 11 and Figure 12In this case, the plane where the connecting plate 231 is located has an angle with the horizontal plane, while the plane where the inclined plate 232 is located is perpendicular to or nearly perpendicular to the horizontal plane. Both the connecting plate 231 and the inclined plate 232 can effectively increase the moment of inertia of the frame 221, thereby improving the frame 221's ability to resist bending deformation.

[0070] As can be seen from the above, the bending-resistant reinforcement 23 can effectively improve the frame 221's resistance to bending deformation in both vertical and inclined states, meeting the usage requirements of this rapidly deployable modular photovoltaic system.

[0071] Preferably, the aforementioned bending-resistant reinforcement 23 further includes a bonding plate 234, see [reference needed]. Figure 10 and Figure 12 The bonding plate 234 is closely attached to the folded plate 233, and the long axis of the bonding plate 234 is parallel to the long axis of the folded plate 233. One side of the bonding plate 234 is connected to the side of the folded plate 233 away from the inclined plate 232. This arrangement not only ensures the strength of the bending-resistant reinforcement 23, but also achieves a double-layer thickening effect through this end bending design, so as to improve the stability and bending resistance of the overall structure of the bending-resistant reinforcement 23, that is, further improve the strength of the bending-resistant reinforcement 23 itself.

[0072] More preferably, the connecting plate 231, inclined plate 232, folded plate 233 and bonding plate 234 are integrally formed components. That is, the bending reinforcement 23 can be formed by bending the plate three times, so as to make the manufacturing of the bending reinforcement 23 more convenient, reduce the weight of the bending reinforcement 23 (reduce the weight added by welding), and reduce the load of the bending reinforcement 23 on the carrier (frame 221).

[0073] In some embodiments, the inclined plate 232 described above is provided with a plurality of process holes 235, see [reference]. Figure 10 Multiple process holes 235 are arranged at equal intervals along the long axis of the inclined plate 232 to reduce the weight of the bending-resistant reinforcement 23. At the same time, the stress distribution of the inclined plate 232 is changed, thereby further improving the strength of the bending-resistant reinforcement 23.

[0074] Preferably, the inclined plate 232 extends laterally away from the mounting surface, and the angle between the inclined plate 232 and the connecting plate 231 is greater than 150° and less than 160°, and the folding plate 233 is perpendicular to the inclined plate 232. In this embodiment, when the scissor lift mechanism 22 is in the deployed state, all the multiple frames 221 on the scissor lift mechanism 22 are in an inclined state, and the angle between the frame 221 and the horizontal plane is 20°. (See [reference]). Figure 6 and Figure 11 ; In this case, the inclined plate 232 is perpendicular to or nearly perpendicular to the horizontal plane, while the folded plate 233 is parallel to or nearly parallel to the horizontal plane. The connecting plate 231 and the inclined plate 232 can effectively increase the moment of inertia of the frame 221 and improve the frame 221's resistance to bending deformation.

[0075] To prevent interference between the folding plates 233 in adjacent bending-resistant reinforcements when the scissor mechanism 22 is folded, the angle between the inclined plate 232 and the connecting plate 231 is set to 155°, making the folding of the scissor mechanism 22 more convenient. See [link to relevant documentation]. Figure 5 .

[0076] To better illustrate the bending deformation resistance of the bending reinforcement 23, the following simulations are performed using finite element models on the frame 221 without the bending reinforcement 23 and the frame 221 with the bending reinforcement 23. The specific simulation process is as follows: The design goal is that the rapidly deployable modular photovoltaic system can withstand winds of force 8 with a safety margin. In the finite element analysis, three cases are mainly considered: the frame 221 is in a vertical state, tilted at 20°, and tilted at 20° under wind force. The load on the frame 221 includes the weight of the frame 221 itself, the weight of the two additional photovoltaic panels 3, and the load under wind force. The specific simulation results are as follows. In Experiment 1, the frame 221 was placed in a vertical position without the bending reinforcement 23, and two photovoltaic panels 3 were installed within the frame 221. The maximum deformation of the frame 221 was approximately 8.123 mm. (See attached image.) Figure 27 ; In Experiment 2, with the frame 221 tilted at 20° and without the bending reinforcement 23, and with two photovoltaic panels 3 installed within the frame 221, the maximum deformation of the frame 221 was approximately 35.858 mm. (See attached image.) Figure 28 ; In Experiment 3, the frame was tilted at 20° and subjected to wind load. Two photovoltaic panels 3 were installed in the frame 221. The maximum deformation of the frame 221 was approximately 74.576 mm. (See attached image.) Figure 29 ; In Experiment 4, the frame 221, equipped with a bending-resistant reinforcement 23, was placed in a vertical position. Two photovoltaic panels 3 were installed within the frame 221. The maximum deformation of the frame 221 was approximately 6.9001 mm. (See attached image). Figure 30 ; In Experiment 5, the frame 221, equipped with a bending-resistant reinforcement 23 and tilted at 20°, was placed with two photovoltaic panels 3 inside. The maximum deformation of the frame 221 was approximately 21.375 mm. (See attached image.) Figure 31 ; Test 6 was conducted under a 20° tilt and wind load conditions, with a frame 221 equipped with a bending-resistant reinforcement 23. Two photovoltaic panels 3 were installed within the frame 221. The maximum deformation of the frame 221 was approximately 43.745 mm. (See attached image.) Figure 32 ; The results of the above simulation tests (tests 1 to 6) show that the maximum deformation of the frame 221 with the anti-bending reinforcement 23 is significantly reduced in different states (compared to the frame 221 without the anti-bending reinforcement 23). The overall stiffness of the frame 221 is significantly improved. The anti-bending reinforcement 23 can provide good anti-bending deformation effect in both vertical and inclined states of the frame 221, thereby meeting the anti-bending deformation requirements of the frame 221 when the scissor mechanism 22 is in the unfolded or folded state.

[0077] In some embodiments, the traction drive mechanism 4 described above includes a double-drum winch 41, a first fixed pulley 42, a second fixed pulley 43, a third fixed pulley 44, a fourth fixed pulley 45, a fifth fixed pulley 46, a sixth fixed pulley 47, and a seventh fixed pulley 48. (See also...) Figure 2 , Figure 3 and Figure 8 The double-drum winch 41 is mounted on the fixed support 1 and is located on the side of the side beam away from the middle beam; that is, the double-drum winch 41 is located on the side of the side beam away from the scissor mechanism 22. (See [reference]). Figure 2 ; The first fixed pulley 42 and the third fixed pulley 44 are both located at the fixed end of the side beam, and the second fixed pulley 43 is located at the free end of the side beam. In this embodiment, the first fixed pulley 42 is located below the third fixed pulley 44, and the axes of both the first fixed pulley 42 and the third fixed pulley 44 are perpendicular to the horizontal plane. The second fixed pulley 43 is located at the same height as the third fixed pulley 44, and its axis is parallel to the horizontal plane. (See [reference]). Figure 8 ; The fourth fixed pulley 45, the sixth fixed pulley 47, and the seventh fixed pulley 48 are all located at the fixed end of the middle beam, while the fifth fixed pulley 46 is located at the free end of the middle beam. In this embodiment, the sixth fixed pulley 47 is located below the fourth fixed pulley 45, and the seventh fixed pulley 48 is located between the sixth fixed pulley 47 and the fourth fixed pulley 45. The axis of the fourth fixed pulley 45 is perpendicular to the horizontal plane, the axis of the sixth fixed pulley 47 is parallel to the horizontal plane, and the angle between the axis of the seventh fixed pulley 48 and the horizontal plane is greater than 0° and less than 90°. The fifth fixed pulley 46 is located at the same height as the fourth fixed pulley 45, and the axis of the fifth fixed pulley 46 is parallel to the horizontal plane. See [reference needed]. Figure 8 ; The two drums on the double-drum winch 41 are the first drum and the second drum. A pull rope is wound on the first drum. The other end of the pull rope passes through the first fixed pulley 42, the second fixed pulley 43, the third fixed pulley 44, the seventh fixed pulley 48, the sixth fixed pulley 47, the fifth fixed pulley 46 and the fourth fixed pulley 45 in sequence before being wound on the second drum. The part of the pull rope between the second fixed pulley 43 and the third fixed pulley 44 that corresponds to the operating end of the scissor mechanism 22, and the part of the pull rope between the fourth fixed pulley 45 and the fifth fixed pulley 46 that corresponds to the operating end of the scissor mechanism 22 are both fixedly connected to the operating end of the scissor mechanism 22.

[0078] When the rapidly deployable modular photovoltaic system is needed, that is, when the scissor mechanism 22 in the rapidly deployable modular photovoltaic system needs to be changed from the folded state to the unfolded state, the operator can control the double-drum winch 41 to drive the two drums to rotate. The first drum will rewind the pull rope, and the second drum will release the pull rope, pulling the moving end of the scissor mechanism 22 away from the fixed end away from the boom 21. At this time, multiple frames 221 will work together to make the scissor mechanism 22 unfolded. When the rapidly deployable modular photovoltaic system is not needed, that is, when the scissor mechanism 22 in the rapidly deployable modular photovoltaic system needs to be changed from the unfolded state to the folded state, the operator can control the double-drum winch 41 to drive the two drums to rotate. The second drum will rewind the pull rope, and the first drum will release the pull rope, pulling the moving end of the scissor mechanism 22 towards the fixed end near the boom 21. At this time, multiple frames 221 will work together to make the scissor mechanism 22 folded.

[0079] In some embodiments, limiters (not shown in the figure) are provided at both ends of the aforementioned side beam. The limiters are connected to the control system of the double-drum winch 41. When the operating end of the scissor mechanism 22 approaches the limiter (the distance can be adjusted), it indicates that the scissor mechanism 22 has been extended or folded to its limit position. At this time, the limiter will send a stop signal to the control system of the double-drum winch 41 to realize the automatic stop of the double-drum winch 41 and avoid the situation where the double-drum winch 41 continues to work and causes damage to the scissor mechanism 22.

[0080] Preferably, the fixed support 1 is also equipped with a wind speed sensor (not shown in the figure) and a light sensor (not shown in the figure). Both the wind speed sensor and the light sensor are connected to the control system of the double-drum winch 41. Before use, the operator can input the set thresholds for wind speed and light energy into the control system of the double-drum winch 41. When the wind speed is greater than the set threshold or the light energy is less than the set threshold, the wind speed sensor or the light sensor will send a folding signal to the control system of the double-drum winch 41, driving the scissor mechanism 22 to the folded state through the double-drum winch 41, thus preventing the scissor mechanism 22 from being damaged by force in a strong wind environment. When the wind speed is less than the set threshold and the light energy is greater than the set threshold, the wind speed sensor or the light sensor will send an unfolding signal to the control system of the double-drum winch 41, driving the scissor mechanism 22 to the unfolded state through the double-drum winch 41, thus completing the automatic unfolding of the photovoltaic panel.

[0081] It is worth noting that the wind speed judgment has a higher priority than the light energy judgment. That is, when the wind speed is greater than the set threshold, even if the light energy is greater than the set threshold, the control system of the dual-drum winch 41 will still control the dual-drum winch 41 to drive the scissor mechanism 22 to the folded state.

[0082] In some embodiments, the lower edge of the hinge segment 213 slopes upward from the fixed end to the free end of the hinge segment 213, forming an upwardly tapering, deformation-resistant structure. See [link to documentation]. Figure 9 This is to further improve the structural stability of the scissor lift support 2.

[0083] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A modular photovoltaic system that can be deployed quickly, characterized in that: It includes a fixed support (1), a scissor support frame (2), a photovoltaic panel (3), and a traction drive mechanism (4); The scissor support frame (2) includes a boom (21) and a scissor mechanism (22); there are two booms (21), both booms (21) are mounted on a fixed support (1), and the two booms (21) are arranged in parallel and opposite to each other; the scissor mechanism (22) is mounted between the two booms (21), and the moving end of the scissor mechanism (22) can extend and retract along the long axis of the boom (21); There are multiple photovoltaic panels (3), and all of the photovoltaic panels (3) are mounted on the scissor mechanism (22); The traction drive mechanism (4) is set on the fixed support (1). The action end of the traction drive mechanism (4) is connected to the action end of the scissor mechanism (22) to drive the action end of the scissor mechanism (22) to switch between the unfolded state and the folded state, so as to adjust the arrangement state of the photovoltaic panel (3).

2. The modular photovoltaic system capable of rapid deployment according to claim 1, characterized in that: The scissor mechanism (22) includes multiple frames (221); The frame (221) is provided with a sliding shaft (2211), a first hinge shaft (2212), and a second hinge shaft (2213) on its two opposite side walls. The sliding shaft (2211) is located in the middle of the side wall, and a linkage rod (222) is provided on the sliding shaft (2211) to rotate around the axis of the sliding shaft (2211). The first hinge shaft (2212) and the second hinge shaft (2213) are respectively arranged near the two ends of the side wall; Multiple frames (221) are slidably disposed between two large arms (21) along the long axis of the large arm (21) through the cooperation of sliding shafts (2211) and large arms (21); the two ends of the linkage rod (222) are respectively hinged to the first hinge shaft (2212) and the second hinge shaft (2213) on the two adjacent frames (221), and the photovoltaic panel (3) is disposed in the frame (221); A sliding shaft (2211) on a frame (221) near the fixed end of the boom (21) is fixed on the boom (21); the actuating end of the traction drive mechanism (4) is connected to the sliding shaft (2211) on a frame (221) away from the fixed end of the boom (21) so as to drive multiple frames (221) to move synchronously away from or near the fixed end of the boom (21) to realize the switching between the unfolded state and the folded state of the scissor mechanism (22).

3. A modular photovoltaic system capable of rapid deployment according to claim 2, characterized in that: The axis of the sliding shaft (2211) is located at the midpoint of the side wall; The distance from the axis of the first hinge shaft (2212) to the axis of the slide shaft (2211) is equal to the distance from the axis of the second hinge shaft (2213) to the axis of the slide shaft (2211).

4. A modular photovoltaic system capable of rapid deployment according to claim 3, characterized in that: The upper arm (21) is provided with a slide rail (211), the long axis of the slide rail (211) is parallel to the long axis of the upper arm (21), and the cross-sectional shape of the slide rail (211) is an inverted "V" shape. The slide shaft (2211) is provided with a roller (22111) that rotates around the axis of the slide shaft (2211). The cross-sectional shape of the rolling surface of the roller (22111) matches the cross-sectional shape of the slide rail (211). The slide shaft (2211) is slidably mounted on the upper arm (21) through the cooperation of the roller (22111) and the slide rail (211).

5. A modular photovoltaic system capable of rapid deployment according to claim 2, characterized in that: The upper edge of the frame (221) is provided with a bending-resistant reinforcement (23) to increase the bending deformation resistance of the frame (221).

6. A modular photovoltaic system capable of rapid deployment according to claim 5, characterized in that: The bending-resistant reinforcement (23) includes a connecting plate (231), an inclined plate (232), and a folded plate (233); The major axis of the inclined plate (232) is parallel to the major axis of the connecting plate (231), the fixed side of the inclined plate (232) is connected to one side of the connecting plate (231), and the inclined plate (232) and the connecting plate (231) are not in the same plane. The major axis of the folding plate (233) is parallel to the major axis of the inclined plate (232). One side of the folding plate (233) is connected to the movable side of the inclined plate (232), and the folding plate (233) and the inclined plate (232) are not in the same plane. The fixed side and the movable side are the two opposite sides of the inclined plate (232). The mounting surface of the connecting plate (231) is attached to and fixed to the upper edge of the frame (221).

7. A modular photovoltaic system capable of rapid deployment according to claim 1, characterized in that: The traction drive mechanism (4) includes a double drum winch (41), a first fixed pulley (42), a second fixed pulley (43), a third fixed pulley (44), a fourth fixed pulley (45), a fifth fixed pulley (46), a sixth fixed pulley (47), and a seventh fixed pulley (48). The two booms (21) are the side beam and the middle beam, respectively; the double drum winch (41) is mounted on the fixed support (1) and is located on the side beam away from the middle beam; The first fixed pulley (42) and the third fixed pulley (44) are both located at the fixed end of the side beam, and the second fixed pulley (43) is located at the free end of the side beam; The fourth fixed pulley (45), the sixth fixed pulley (47) and the seventh fixed pulley (48) are all located at the fixed end of the middle beam, and the fifth fixed pulley (46) is located at the free end of the middle beam; A pull rope is wound on one of the drums of the double-drum winch (41). The other end of the pull rope passes through the first fixed pulley (42), the second fixed pulley (43), the third fixed pulley (44), the seventh fixed pulley (48), the sixth fixed pulley (47), the fifth fixed pulley (46), and the fourth fixed pulley (45) in sequence before being wound on the other drum of the double-drum winch (41). The part of the pull rope between the second fixed pulley (43) and the third fixed pulley (44) corresponding to the operating end of the scissor mechanism (22), and the part of the pull rope between the fourth fixed pulley (45) and the fifth fixed pulley (46) corresponding to the operating end of the scissor mechanism (22) are all fixedly connected to the operating end of the scissor mechanism (22).

8. A modular photovoltaic system capable of rapid deployment according to claim 7, characterized in that: Limiters are installed at both ends of the side beam, and the limiters are connected to the control system signal of the double-drum winch (41).

9. A modular photovoltaic system capable of rapid deployment according to claim 1, characterized in that: The boom (21) includes a fixed section (212) and a hinged section (213); The fixed section (212) is set on the fixed support (1). When the scissor mechanism (22) is in the folded state, the scissor mechanism (22) is mounted on the fixed section (212) of the two booms (21). The fixed end of the hinge section (213) is hinged to one end of the fixed section (212) via a hinge shaft, and the axis of the hinge shaft is perpendicular to the horizontal plane; the bottom of the hinge section (213) is detachably provided with multiple support rods (24), and the multiple support rods (24) are arranged at equal intervals along the long axis of the hinge section (213).

10. A modular photovoltaic system capable of rapid deployment according to claim 9, characterized in that: The lower edge of the hinge segment (213) slopes upward from the fixed end of the hinge segment (213) to the free end of the hinge segment (213).

Images