Self-adaptive photovoltaic support

Abstract

The invention relates to the field of photovoltaic supports, and particularly provides a self-adaptive photovoltaic support which comprises a main support, a first supporting leg, a telescopic part and a second supporting leg. One side of the main support is hinged to the first supporting leg, a temperature sensing material is arranged in the telescopic part, the temperature sensing material generates volume change based on the change of the environment temperature so as to change the length of the telescopic part, and one end of the telescopic part is hinged to the side, away from the first supporting leg, of the main support; the second supporting leg is hinged to the end, away from the main support, of the telescopic piece. The length of the telescopic piece is controlled through the temperature sensing material, the temperature is low in winter, and the dip angle of the main support is increased to be matched with the low solar altitude in winter; when the temperature rises in summer, the inclination angle of the main support is reduced to adapt to a high solar elevation angle in summer, so that the inclination angle is automatically adjusted all year round, external energy input and manual intervention are not needed, and the power generation efficiency and stability of the photovoltaic support all year round are improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic mounting systems, and more particularly to an adaptive photovoltaic mounting system. Background Technology

[0002] With the acceleration of the global energy transition, solar photovoltaic (PV) power generation has become one of the fastest-growing renewable energy utilization methods globally due to its advantages such as being clean, renewable, and widely distributed. According to data from the International Energy Agency (IEA), global PV power generation capacity increased by more than 30% year-on-year in 2023, with cumulative installed capacity exceeding 1.4 trillion kilowatts, and the proportion of PV power generation in the energy structure continues to rise. As the core supporting component of a PV power plant system, the structure and performance of the PV mounting system directly affect the light-receiving efficiency of the PV modules, thus determining the overall power generation revenue of the power plant.

[0003] Currently, the most widely used type of photovoltaic (PV) bracket is the fixed-tilt bracket. This type of bracket pre-calculates and sets a fixed installation tilt angle based on parameters such as the geographical latitude and annual solar radiation distribution of the project site. Once installed, the angle is not adjusted. Fixed brackets are characterized by their simple structure, low manufacturing cost, and convenient installation and maintenance, and are widely used in PV power plants with regular terrain such as plains and deserts. However, due to the Earth's revolution and rotation, the solar altitude and azimuth angles are constantly changing: in terms of seasons, the solar altitude angle is highest in summer and lowest in winter, with a difference of 40°-60°; in terms of a single day, the solar azimuth angle deflects from east to west, while the altitude angle cycles from low to high and back to low.

[0004] The fixed angle of the fixed-tilt bracket makes it impossible to adapt to the dynamic changes in the sun's angle, resulting in the photovoltaic modules always having a suboptimal sunlight incident angle, significantly limiting the improvement of power generation efficiency. Specifically, in summer, when the sun's altitude angle is high, fixed-tilt photovoltaic modules are prone to "sunspot effect," with excessively high local temperatures affecting module lifespan, and a low percentage of vertical sunlight incident. In winter, when the sun's altitude angle is low, the light-receiving area of ​​the photovoltaic modules is significantly reduced, with the amount of solar irradiance received per unit area only about 60% of that in summer, directly leading to a sharp drop in power generation in winter. According to actual power plant operation data, photovoltaic power plants using fixed-tilt brackets experience a 35%-45% difference in power generation between seasons, with winter power generation revenue less than 70% of that in summer, significantly lengthening the overall investment payback period. To address these issues, this application proposes an adaptive photovoltaic bracket. Summary of the Invention

[0005] The purpose of this invention is to provide an adaptive photovoltaic bracket to solve the problem that the single angle of current photovoltaic brackets affects power generation efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An adaptive photovoltaic bracket includes a main bracket, a first leg, a telescopic member, and a second leg. One side of the main bracket is hinged to the first leg. The telescopic member contains a temperature-sensitive material that changes volume based on changes in ambient temperature to alter the length of the telescopic member. One end of the telescopic member is hinged to the side of the main bracket away from the first leg. The second leg is hinged to the end of the telescopic member away from the main bracket.

[0008] Furthermore, the telescopic component includes a movable rod, a pressure chamber, and a pressure spring. One end of the movable rod is hinged to the main support, and the other end is fixed with a piston. The end of the movable rod with the piston passes through one end of the pressure chamber and is located inside the pressure chamber. The temperature-sensitive material is located between the end of the pressure chamber away from the movable rod and the piston. The pressure chamber is made of a rigid thermally conductive material. The pressure spring is sleeved on the portion of the movable rod located inside the pressure chamber.

[0009] Furthermore, the temperature-sensitive material is a phase change material that is liquid in winter and gaseous in summer.

[0010] Furthermore, the telescopic component includes a threaded rod, a threaded tube, and a power component. One end of the threaded rod is hinged to the main support. The threaded tube is sleeved on the threaded rod and is threadedly engaged with it. The power component is driven by a temperature-sensitive material and outputs rotational torque. The output end of the power component is connected to the threaded tube to drive the threaded tube to rotate.

[0011] Furthermore, the telescopic component also includes a speed increaser, the output end of which is poweredly connected to the threaded pipe to drive its rotation, and the input end of which is connected to the output end of the power component to input rotational torque.

[0012] Furthermore, the power component includes a crank, a base, and a connecting rod assembly. The crank is connected to the end of the threaded tube; the base is rotatably connected to the threaded tube, and the base is perpendicular to the axis of the threaded tube; the connecting rod assembly is filled with a temperature-sensitive material, and the connecting rod assembly is a telescopic pressure cylinder structure. One end of the connecting rod assembly is hinged to the end of the crank away from the threaded tube, and the other end is hinged to the base. The connecting rod assembly, the crank, the rotation center of the crank, and the rotation center of the connecting rod assembly form a triangle.

[0013] Furthermore, the power component includes a base and a spiral spring tube. The base is a hollow disc-shaped cavity structure. The threaded tube is rotatably connected to the base and coincides with the central axis of the base. The spiral spring tube is spirally wound inside the base. The outer end of the spiral spring tube is fixed to the inner wall of the base. The inner end of the spiral spring tube is fixedly connected to the end of the threaded tube. The temperature-sensing material is filled inside the spiral spring tube.

[0014] Preferably, the cross-section of the vortex elastic tube is crescent-shaped, with its inner side concave inward and its outer side protruding outward.

[0015] Preferably, the vortex-shaped elastic tube is flat and round.

[0016] In summary, the present invention has the following advantages compared with the prior art:

[0017] The adaptive photovoltaic (PV) support disclosed in this invention controls the length of the telescopic component using a temperature-sensitive material. When arranging the PV support, the first support leg is located on the north side of the PV support, and the second support leg is located on the south side. In winter, when the temperature is low, the length of the telescopic component shortens, causing the south side of the main support to lower, thereby increasing the tilt angle of the main support to match the lower solar altitude angle in winter. In summer, when the temperature rises, the temperature-sensitive material undergoes a phase change and expands, increasing the length of the telescopic component and raising the south side of the main support, reducing the tilt angle to adapt to the higher solar altitude angle in summer. This achieves automatic tilt angle adjustment throughout the year without external energy input or manual intervention, improving the annual power generation efficiency and stability of the PV support. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the adaptive photovoltaic bracket disclosed in Embodiment 1 of the present invention.

[0019] Figure 2 This is a schematic diagram of the adaptive photovoltaic bracket disclosed in Embodiment 2 of the present invention.

[0020] Figure 3 for Figure 2 Sectional view of AA.

[0021] Figure 4 for Figure 3 A magnified view of a section at point I.

[0022] Figure 5 This is a schematic diagram of the adaptive photovoltaic bracket disclosed in Embodiment 2 of the present invention.

[0023] Figure 6 This is a front view of the adaptive photovoltaic bracket disclosed in Embodiment 2 of the present invention.

[0024] Figure 7 for Figure 6A cross-sectional view of BB.

[0025] Figure 8 for Figure 7 A magnified view of a section at point II.

[0026] Figure 9 for Figure 6 A sectional view of CC.

[0027] Figure 10 for Figure 9 A magnified view of a section at point III.

[0028] Figure 11 This is a schematic diagram of the speed increaser in the adaptive photovoltaic bracket disclosed in Embodiment 2 of the present invention.

[0029] Figure 12 This is a schematic diagram of the vortex elastic tube in the adaptive photovoltaic support disclosed in Embodiment 2 of the present invention.

[0030] Figure 13 This is a schematic diagram of the power component in the adaptive photovoltaic bracket disclosed in Embodiment 3 of the present invention.

[0031] Figure label:

[0032] 100. Main support; 101. First lug; 102. Second lug; 200. First foot; 300. Telescopic component; 311. Movable rod; 312. Third lug; 313. Piston; 314. Pressure tube; 315. Pressure spring; 316. Fourth lug; 321. Threaded rod; 322. Fifth lug; 323. Threaded tube; 324. Bottom cover; 325. Connecting shaft; 330. Speed ​​increaser; 331. [Unclear - possibly a device or component] Male gear; 332, gear ring; 333, planetary gear; 334, speed-increasing housing; 335, connecting block; 340, power component; 341, center sleeve; 342, crank; 343, connecting rod assembly; 350, base; 351, upper housing; 352, lower cover; 353, vent hole; 400, second support leg; 500, third support leg; 501, hinge rod; 600, telescopic limit tube; 601, sleeve rod; 602, sleeve. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Example 1: As Figures 1 to 4As shown, the present invention provides an adaptive photovoltaic bracket, including a main bracket 100, a first leg 200, a telescopic member 300, and a second leg 400. One side of the main bracket 100 is hinged to the first leg 200. The telescopic member 300 is provided with a temperature-sensitive material. The temperature-sensitive material changes volume based on changes in ambient temperature to change the length of the telescopic member 300. One end of the telescopic member 300 is hinged to the side of the main bracket 100 away from the first leg 200. The second leg 400 is hinged to the end of the telescopic member 300 away from the main bracket 100.

[0035] In this embodiment, the first support leg 200 is placed on the back side, and the second support leg 400 is installed on the south side. For roofs with ridges, the length of the first support leg 200 is shorter, while the length of the telescopic component 300 is longer. For flat roofs, the lengths of both can be adjusted so that the height of the first support leg 200 is higher than the height of the telescopic component 300. This ensures that the photovoltaic panel can achieve the optimal tilt angle under different roof structures, maximizing the annual solar radiation reception efficiency. In winter, the temperature-sensitive material contracts due to low temperatures, causing the telescopic component 300 to shorten, increasing the tilt angle of the photovoltaic panel and thus more efficiently capturing low-angle sunlight. In summer, the temperature-sensitive material expands due to high temperatures, pushing the telescopic component 300 to lengthen, decreasing the tilt angle to adapt to high-angle direct sunlight and improving power generation stability. It dynamically responds to changes in ambient temperature throughout the year without the need for external power supply or manual intervention, truly achieving structural self-adaptation and zero energy consumption during operation.

[0036] Specifically, in this embodiment, the main support 100 is a conventional photovoltaic support structure in the prior art, and its main body is integrally die-cast from high-strength aluminum alloy and the surface is anodized.

[0037] The main support 100 is connected to the first support leg 200 by bolts and has a first support lug 101 fixed to one side. The first support leg 200 is hinged to the first support lug 101 and fixed to the roof by bolts. The main support 100 is connected to the telescopic member 300 by screws and has a second support lug 102 fixed to one side. One end of the telescopic member 300 is hinged to the second support lug 102 and the other end is hinged to the second support leg 400. The first support lug 101, the second support lug 102, the first support leg 200, and the second support leg 400 are all technical components, such as T-shaped steel structures.

[0038] As a preferred embodiment of this example, Figure 4As shown, the telescopic component 300 includes a movable rod 311, a pressure tube 314, and a pressure spring 315. One end of the movable rod 311 is hinged to the main support 100, and the other end is fixed with a piston 313. The end of the movable rod 311 with the piston 313 passes through one end of the pressure tube 314 and is located inside the pressure tube 314. The temperature-sensitive material is located between the end of the pressure tube 314 away from the movable rod 311 and the piston 313. The pressure tube 314 is a rigid thermally conductive material. The pressure spring 315 is sleeved on the portion of the movable rod 311 located inside the pressure chamber.

[0039] Specifically, in this embodiment, the pressure tube 314 is a cylindrical structure with its opening sealed by an end cap structure and its inner wall smooth. The pressure tube 314 is made of stainless steel. The movable rod 311 is a round rod structure that passes through the end cap structure at the end of the pressure tube 314 and extends into the interior of the pressure tube 314. A third lug 312 is fixed to one end of the movable rod 311 located outside the pressure tube 314. The third lug 312 is hinged to the second lug 102. The piston 313 is coaxially fixed to the movable rod 311 and located inside the pressure tube 314. A pre-compressed pressure spring 315 is provided between its end face and the bottom wall of the inner cavity of the pressure tube 314. Spring 315 is sleeved on the movable rod 311. The temperature-sensitive material is filled in the inner cavity of the pressure tube 314, between the end face of the piston 313 and the bottom wall of the pressure tube 314. The temperature-sensitive material is located on the side of the piston 313 away from the pressure spring 315. A fourth lug 316 is also fixed at the end of the pressure tube 314 away from the movable rod 311. The fourth lug 316 is hinged to the second leg 400 to form a complete temperature-controlled telescopic unit. When the ambient temperature changes, the volume of the temperature-sensitive material expands and contracts in response, pushing the piston 313 to move axially along the pressure tube 314, compressing or releasing the potential energy of the pressure spring 315, thereby driving the movable rod 311 to extend and retract as a whole, and adjusting the tilt angle of the photovoltaic panel in real time.

[0040] Preferably, the temperature-sensing material is a phase change material that is liquid in winter and gaseous in summer. In this embodiment, the temperature-sensing material is R141B, R134a, or a refrigerant with similar properties.

[0041] Example 2: As another embodiment of the present invention, such as Figures 5 to 8As shown, the difference between this embodiment and Embodiment 1 is that the telescopic component 300 includes a threaded rod 321, a threaded tube 323, and a power component 340. One end of the threaded rod 321 is hinged to the main support 100; the threaded tube 323 is sleeved on the threaded rod 321 and is threadedly engaged with it; the power component 340 is driven by a temperature-sensitive material and outputs rotational torque, and the output end of the power component 340 is connected to the threaded tube 323 to drive the threaded tube 323 to rotate.

[0042] Specifically, in this embodiment, the threaded rod 321 is provided with an external thread, and a fifth lug 322 is provided at the end of the threaded rod 321. The threaded tube 323 is a cylindrical tube with an opening at one end, and an internal thread that matches the external thread on the threaded rod 321 is provided inside the threaded tube 323. The threaded tube 323 is sleeved on the threaded rod 321 and can rotate and slide along its axial direction. A connecting shaft 325 is provided at the end of the threaded tube 323, and the connecting shaft 325 is connected to the output end of the power component 340. The threaded tube 323 is connected to a bottom cover 324 at one end away from the fifth lug 322. The bottom cover 324 is disc-shaped. The threaded tube 323 and the bottom cover 324 are rotatably connected and perpendicular to the bottom cover 324. The power component 340 is connected to the bottom cover 324. The speed increaser 330 generates a rotational torque through the thermal expansion and contraction effect of the phase change of the temperature-sensitive material, which drives the threaded tube 323 to spiral feed along the threaded rod 321, thereby pushing the bottom cover 324 to swing and driving the dynamic adjustment of the tilt angle of the photovoltaic panel.

[0043] In a preferred embodiment of this invention, the telescopic member 300 further includes a speed increaser 330. The output end of the speed increaser 330 is poweredly connected to the threaded pipe 323 to drive its rotation, and the input end of the speed increaser 330 is connected to the output end of the speed increaser 330 to input rotational torque.

[0044] Specifically, such as Figure 11As shown, the speed increaser 330 adopts a planetary gear structure to amplify the minute phase change displacement of the temperature-sensitive material into a high-precision angular displacement output. The telescopic component 300 includes a sun gear 331, a gear ring 332, planetary gears 333, and a speed increase housing 334. The end of the threaded tube 323 passes through the bottom cover 324. The sun gear 331 is fixedly connected to the connecting shaft 325 and transmits torque. The sun gear 331 is nested around the outer circumference of the sun gear 331. The gear ring 332 is located between the sun gear 331 and the gear ring 332. The gear ring 332 and the planetary gears 333 are rotatably connected to the speed increase housing 334. The speed increase housing 334 is a circular groove-shaped shell. The bottom cover 324 is fixedly connected to the bottom cover by screws. The opening of the speed-increasing housing 334 is sealed, forming a closed cavity inside the speed-increasing housing 334. The rotating shaft of the gear ring 332 passes through the speed-increasing housing 334 and is rigidly connected to the output end of the power component 340. The rotational torque output by the power component 340 is precisely transmitted to the planetary gear set via the rotating shaft, and after being accelerated, it is transmitted to the connecting shaft 325 and drives the threaded tube 323 to rotate. Since the threaded rod 321 is hinged on the main support 100, the threaded rod 321 and the threaded tube 323 rotate relative to each other. The threaded rod 321 is spirally fed along the internal thread of the threaded tube 323, pushing the main support 100 to deflect at a set angle, thereby adjusting the tilt angle of the photovoltaic panel in real time.

[0045] As a preferred embodiment of this example, Figure 7 and Figure 8 As shown, the power component 340 is a spiral spring tube, which is connected to the base 350. The base 350 is a hollow disc-shaped cavity structure. The rotating shaft of the gear ring 332 is rotatably connected to the base 350 and coincides with the central axis of the base 350. The spiral spring tube is spirally wound inside the base 350. The outer end of the spiral spring tube is fixed to the inner wall of the base 350. The inner end of the spiral spring tube is fixedly connected to the end of the threaded tube 323. The temperature-sensing material is filled inside the spiral spring tube.

[0046] Specifically, in this embodiment, such as Figure 8 , Figure 11 and Figure 12As shown, the base 350 includes an upper housing 351 and a lower cover 352. The upper housing 351 has an annular groove structure and is integral with the speed-increasing outer shell 334. The opening groove of the upper housing 351 is located on the side of the upper housing 351 away from the speed-increasing outer shell 334. The rotating shaft of the gear ring 332 passes through the bottom of the groove of the upper housing 351 and extends into the upper housing 351. A central sleeve 341 is fixed to the central end of the power component 340. The central sleeve 341 is fixedly connected to the rotating shaft end of the gear ring 332. The outer end of the power component 340 is fixed to the inner wall of the upper housing 351. The lower cover 352 has a disc structure and is fixedly connected to the edge of the groove of the upper housing 351 by bolts, forming a temperature sensing cavity together with the upper housing 351.

[0047] Preferably, the edge of the upper housing 351 is also provided with a vent hole 353, which is used to connect the interior of the lower cover 352 with the external environment, so that the temperature-sensitive material can respond in real time with changes in ambient temperature.

[0048] As a preferred embodiment of this example, Figure 8 and Figure 12 As shown, the cross-section of the vortex elastic tube is crescent-shaped, with its inner side concave inward and its outer side protruding outward.

[0049] In this embodiment, the elastic tube is first processed into a standard crescent-shaped metal strip, and then precisely wound into a vortex shape to ensure uniform gaps between each turn and continuous stress distribution. After injecting the temperature-sensitive material, the two ends are sealed by welding to form a completely sealed temperature-sensitive drive cavity. When the temperature-sensitive material is in a liquid state, it fills 30%-40% of the space of the vortex cavity. When heated and expanded, it pushes the outer turn of the vortex tube to expand radially, driving the base 350 to rotate synchronously. When cooled and contracted, it causes the inner turn to spring back and reset, driving the threaded tube 323 to spiral backward in the opposite direction.

[0050] It should be noted that the vortex-shaped elastic tube is not limited to a crescent shape, but can also be other shapes, such as a flat oval.

[0051] Preferably, in this embodiment, the telescopic member 300 is located at the middle of the edge of the main support 100, and telescopic limiting tubes 600 are provided on both sides of the telescopic member 300. The telescopic limiting tubes 600 are hinged to the main support 100, and the end of the telescopic limiting tube 600 away from the main support 100 is hinged to the second support leg 400.

[0052] like Figure 9 and Figure 10As shown, the telescopic limiting tube 600 includes a sleeve rod 601 and a sleeve 602. The sleeve rod 601 is a smooth round rod, and the sleeve 602 is a cylindrical shape with a smooth inner wall. The sleeve rod 601 passes through the sleeve 602 and can slide relative to it, together forming a telescopic connecting rod structure. One end of the sleeve rod 601 is hinged to the side of the main support 100, and the other end is located inside the sleeve 602. The end of the sleeve 602 away from the main support 100 is hinged to the base of the second support leg 400. The telescopic limiting tube 600 serves to stabilize the main support 100.

[0053] The telescopic component 300 is connected to the roof via a third support leg 500, such as Figure 6 and Figure 11 As shown, connecting blocks 335 are provided on both sides of the speed-increasing outer shell 334. The connecting blocks 335 are provided with hinge holes. The third support leg 500 is a double-ear hinge seat. The third support leg 500 is provided with a hinge rod 501. The hinge rod 501 is rotatably connected to the hinge hole of the connecting block 335, so that the telescopic member 300 can swing freely around the hinge rod 501. The other end of the hinge rod 501 is fixed to the third support leg 500.

[0054] Example 3: As another embodiment of the present invention, such as Figure 13 As shown, the difference between this embodiment and Embodiment 2 is that the power component 340 includes a crank 342, a base 350, and a connecting rod assembly 343. The crank 342 is connected to the end of the threaded tube 323; the base 350 is rotatably connected to the threaded tube 323, and the base 350 is perpendicular to the axis of the threaded tube 323; the connecting rod assembly 343 is filled with a temperature-sensitive material, and the connecting rod assembly 343 is a telescopic pressure cylinder structure. One end of the connecting rod assembly 343 is hinged to the end of the crank 342 away from the threaded tube 323, and the other end is hinged to the base 350. The connecting rod assembly 343, the crank 342, the line connecting the rotation center of the crank 342 and the rotation center of the connecting rod assembly 343 forms a triangle.

[0055] Specifically, the base 350 is a cover plate structure with one end larger than the other, the crank 342 is a square rod structure, one end of the crank 342 is fixedly connected to the rotating shaft of the gear ring 332, and the other end of the crank 342 is hinged to the output shaft of the connecting rod assembly 343. The connecting rod assembly 343 is a pressure cylinder structure, and the end of the connecting rod assembly 343 away from the crank 342 is hinged to the base 350. The base 350 and the speed-increasing housing 334 are an integral structure, and the base 350 is located at the end of the speed-increasing housing 334.

[0056] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0057] It should be understood that although the terms first, second, third, etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive photovoltaic support structure, comprising a main support and a first leg, wherein one side of the main support is hinged to the first leg, characterized in that, The photovoltaic support also includes: The telescopic component contains a temperature-sensitive material that changes volume based on changes in ambient temperature to alter the length of the telescopic component. One end of the telescopic component is hinged to the side of the main support away from the first leg. The second leg is hinged to the end of the telescopic member away from the main support.

2. The adaptive photovoltaic bracket according to claim 1, characterized in that, The telescopic component includes: The movable rod has one end hinged to the main support and the other end fixed with a piston; The pressure chamber has a piston-equipped end that passes through one end of the pressure chamber and is located inside it. The temperature-sensitive material is located between the end of the pressure chamber away from the movable rod and the piston. The pressure chamber is made of a rigid thermally conductive material. A pressure spring, wherein the pressure spring is sleeved on the portion of the movable rod located within the pressure chamber.

3. The adaptive photovoltaic bracket according to claim 1, characterized in that, The temperature-sensitive material is a phase change material that is liquid in winter and gaseous in summer.

4. The adaptive photovoltaic bracket according to claim 1, characterized in that, The telescopic component includes: A threaded rod, one end of which is hinged to the main support; A threaded tube, which is sleeved on the threaded rod and engages with it via threads; A power component, which is driven by a temperature-sensitive material and outputs a rotational torque, has its output end connected to the threaded tube to drive the threaded tube to rotate.

5. The adaptive photovoltaic bracket according to claim 4, characterized in that, The telescopic component also includes: The speed increaser has its output end connected to the threaded pipe to drive its rotation, and its input end connected to the output end of the power component to input rotational torque.

6. The adaptive photovoltaic bracket according to claim 4, characterized in that, The power component includes: A crank, which is connected to the end of the threaded tube; A base, which is rotatably connected to the threaded tube, and the base is perpendicular to the axis of the threaded tube; The connecting rod assembly is filled with a temperature-sensitive material and is a telescopic pressure cylinder structure. One end of the connecting rod assembly is hinged to the end of the crank away from the threaded tube, and the other end is hinged to the base. The connecting rod assembly, the crank, the rotation center of the crank, and the rotation center of the connecting rod assembly form a triangle.

7. The adaptive photovoltaic bracket according to claim 4, characterized in that, The power component includes: The base is a hollow disc-shaped cavity structure, and the threaded tube is rotatably connected to the base and coincides with the central axis of the base; A spiral spring tube is spirally wound inside the base. The outer end of the spiral spring tube is fixed to the inner wall of the base, and the inner end of the spiral spring tube is fixedly connected to the end of the threaded tube. The temperature-sensitive material is filled inside the spiral spring tube.

8. The adaptive photovoltaic bracket according to claim 7, characterized in that, The cross-section of the spiral spring tube is crescent-shaped, with its inner side concave and its outer side protruding outward.

9. The adaptive photovoltaic bracket according to claim 7, characterized in that, The spiral spring tube is flat and round.

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