Position adjustment structure for photovoltaic module testing

Abstract

The utility model provides a position adjusting structure for photovoltaic module test, is used for solving the problem that the installation angle of photovoltaic module, array spacing and relative position with salt pond cannot be adjusted in simulation test in prior art. Including: first control part and two second control parts, two photovoltaic modules are respectively arranged in two second control parts top, first control part is used for adjusting two second control parts simultaneous opposite direction movement or reverse movement, second control part is used for adjusting photovoltaic module and horizontal plane's pitch angle, adjusting photovoltaic module orientation and adjusting photovoltaic module and salt pond water surface's relative position. This structure can adjust the array spacing of photovoltaic module, also can adjust photovoltaic module and horizontal plane's pitch angle, adjust photovoltaic module orientation and adjust photovoltaic module and salt pond water surface's relative position.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic technology, and in particular relates to a position adjustment structure for testing photovoltaic modules. Background Technology

[0002] In recent years, with the rapid development and remarkable achievements of new energy sources such as wind power and photovoltaic power generation, they have played an increasingly important role in the energy system. Major new energy sources such as wind power and photovoltaics have entered a new stage of large-scale, high-proportion, market-oriented, and high-quality development. As the core component of a photovoltaic system, the performance and reliability of photovoltaic modules directly affect the power generation efficiency and lifespan of the entire system.

[0003] Photovoltaic-salt hybridization is a photovoltaic power generation technology that involves installing photovoltaic modules in salt pond areas, allowing photovoltaic power generation and salt production to operate in synergy. Sunlight shines on the modules, photons excite electrons to generate electricity, and the salt fields use sunlight to evaporate brine to produce salt, achieving dual use of the land and improving resource utilization efficiency. Therefore, the synergistic optimization of solar resources and salt production is crucial.

[0004] Installing photovoltaic (PV) modules in salt lake areas requires simulation experiments to determine the optimal installation angle, array spacing, and relative position of the PV modules to the salt lake, thereby improving resource utilization efficiency. However, due to the lack of equipment with such research capabilities, it is impossible to adjust the installation angle, array spacing, and relative position of the PV modules to the salt lake during simulation experiments. This makes it impossible to fully ensure the comprehensive utilization of solar resources while maintaining the yield and quality of salt production, and thus hinders the optimal synergy between PV power generation and salt production. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a position adjustment structure for photovoltaic module testing, which solves the problem that the installation angle, array spacing and relative position of the photovoltaic module with respect to the salt pool cannot be adjusted during simulation testing in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides a position adjustment structure for testing photovoltaic modules, comprising: The first control unit and two second control units are respectively located on top of the two second control units. The first control unit is used to adjust the two second control units to move towards each other or in opposite directions at the same time. The second control units are used to adjust the pitch angle of the photovoltaic module with respect to the horizontal plane, adjust the orientation of the photovoltaic module, and adjust the relative position of the photovoltaic module with respect to the surface of the salt lake. The first control unit includes an adjusting rod rotatably installed inside the simulation box, a rotating sealing module, and an adjusting power component. One end of the adjusting rod is rotatably sealed and connected to the rotating sealing module and extends out of the simulation box. The adjusting rod is provided with two threads of the same length but different directions of rotation. The bottom of the two second control units are respectively provided with threaded holes that are threaded to the threads of different directions of rotation on the adjusting rod. Each of the second control units has two inverted T-shaped sliding blocks at the bottom, with the two T-shaped sliding blocks located on both sides of the adjustment rod. The bottom of the simulation box has two T-shaped grooves that slide in cooperation with the two T-shaped sliding blocks respectively. The two second control units are driven to move simultaneously toward or in opposite directions on the adjustment rod by the rotation of the adjustment power component to adjust the spacing between the two photovoltaic modules.

[0007] Optionally, the rotary sealing module includes a rotating ring body, a rotating sealing ring, a stationary sealing ring, and a stationary ring body fixedly connected to the inner wall of the simulation chamber, which are coaxially fixedly fitted with the adjusting rod. An elastic element is used to provide a thrust to the stationary sealing ring towards the rotating sealing ring. One end of the rotating sealing ring is connected to the rotating ring body through multiple positioning pins, and one end of the stationary sealing ring is connected to the stationary ring body through multiple positioning pins. The stationary ring body has an annular groove that can accommodate the stationary sealing ring. The other end of the rotating sealing ring fits against one end of the stationary sealing ring to form a sealing interface perpendicular to the axial direction of the adjusting rod.

[0008] Optionally, a sealing ring is provided between the stationary sealing ring and the stationary ring body, and between the dynamic sealing ring and the dynamic ring body.

[0009] Optionally, the elastic element has multiple components, and the bottom of the annular groove has multiple mounting grooves for mounting multiple elastic elements; The elastic element includes a spring, one end of which is connected to the bottom of the mounting groove, and the other end of which is connected to one end of the static sealing ring.

[0010] Optionally, the second control unit includes a motion seat, an outer cylinder vertically fixed above the motion seat, a first vertical arm vertically and rotatably installed inside the outer cylinder, a second vertical arm, a rotation power module for driving the first vertical arm to rotate, a pitch module disposed at the top of the second vertical arm for adjusting the pitch angle of the photovoltaic module, and a vertical power module disposed inside the outer cylinder for driving the second vertical arm to move in the vertical direction. The second vertical arm and the first vertical arm are slidably and rotatably connected. Each of the two motion seats has a threaded hole that engages with the threaded thread of the adjusting rod in a different direction, and each motion seat has two inverted T-shaped sliding blocks at the bottom.

[0011] Optionally, the pitch module includes a pitch shaft rotatably mounted on the top of the second vertical arm and perpendicular to the central axis of the second vertical arm, a small gear coaxially fixedly engaged with the pitch shaft, a rotating shaft rotatably mounted on the side wall of the second vertical arm, a large gear coaxially fixedly engaged with the rotating shaft, a rotating arm vertically and fixedly connected to the rotating shaft, a pitch power component, and a protective cover. The large gear meshes with the small gear for transmission. The protective cover consists of a hard top plate, a follower bottom ring, and an elastic cover body. The hard top plate is coaxially mounted with the second vertical arm. The shaft is fixedly engaged, the follower bottom ring is rotatably sealed to the top of the outer cylinder, the top and bottom of the elastic cover are fixedly connected to the hard top plate and the follower bottom ring respectively, the second vertical arm has a long U-shaped follower groove along its own axis, the inner wall of the follower bottom ring has a toggle piece facing the central axis of the second vertical arm and slidingly engaged with the long U-shaped follower groove, the fixed end and telescopic end of the pitch power component are respectively hinged to the hard top plate and the rotating arm, and the photovoltaic module is connected to the pitch shaft through a connecting frame.

[0012] Optionally, the pitch power component includes a hydraulic cylinder, a pneumatic cylinder, or an electric actuator.

[0013] Optionally, the top of the first vertical arm has an inward blind groove along its own axis, and the sidewall of the blind groove has a plurality of concave sliding grooves in the circumferential direction. The bottom of the second vertical arm has a plurality of protrusions that respectively slide in cooperation with the concave sliding grooves in the circumferential direction. The vertical power module includes a partition platform, an abutment platform, and multiple protrusions spaced circumferentially along the sidewall of the abutment platform, all fixed inside the outer cylinder. A vertical telescopic member drives the abutment platform to move vertically. The first vertical arm passes through the partition platform and is rotatably engaged, and the second vertical arm passes through the abutment platform and is rotatably engaged. The inner wall of the outer cylinder has vertical grooves near the top that are slidably engaged with the multiple protrusions. The fixed end and telescopic end of the vertical telescopic member are connected to the partition platform and the abutment platform, respectively.

[0014] Optionally, the vertical telescopic component includes a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0015] Optionally, the rotational power module includes a turbine coaxially fixed to the bottom of the first vertical arm and located inside the outer cylinder, a worm gear rotatably installed inside the outer cylinder, and a rotational power component that drives the worm gear to rotate, wherein the turbine and the worm gear mesh and transmit power.

[0016] As described above, the position adjustment structure for photovoltaic module testing according to this utility model has at least the following beneficial effects: The design of the first and second control sections enables omnidirectional attitude control of the photovoltaic modules, thereby achieving precise simulation of the position of the photovoltaic modules relative to the salt pond environment. A pitch-adjusting power component drives the pitch-adjusting rod to rotate around its own axis. Two threads of the same length but different directions on the pitch-adjusting rod engage with threaded holes on the two second control sections to achieve simultaneous or opposite movements, improving synchronization and allowing for precise adjustment of the spacing between the photovoltaic modules on the second control sections, thus simulating the spacing of the photovoltaic module array. Furthermore, two T-shaped grooves slide in engagement with T-shaped sliding blocks at the bottom of the second control sections. The T-shaped grooves bear the lateral forces and overturning moments during movement, forming a rigid guiding constraint, ensuring that the second control sections move linearly along the axis of the pitch-adjusting rod, thus guaranteeing the smoothness and accuracy of the spacing adjustment movement of the second control sections. The second control unit adjusts the angle between the photovoltaic (PV) module and the horizontal plane to simulate the installation angle of the PV module when deployed in the salt pond area; it adjusts the orientation of the PV module by changing its azimuth angle to simulate the required direction when deploying the PV module in the salt pond area; and it simulates the relative distance between the PV module and the salt pond water surface by changing the height or precise position of the PV module. Each second control unit independently adjusts the attitude of the PV module at its top, allowing the two PV modules to be adjusted to different angles according to their respective positions or experimental requirements. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention. Figure 2 The diagram shown is a three-dimensional structural schematic of the second control unit of the present invention. Figure 3 Shown is a cross-sectional view of the second control unit of the present invention; Figure 4 The image shown is a cross-sectional view of the rotary sealing module of the present invention.

[0018] Component designation explanation First control unit 11, adjusting rod 111, rotating sealing module 112, moving ring body 1121, moving sealing ring 1122, stationary sealing ring 1123, stationary ring body 1124, annular groove 11241, mounting groove 11242, elastic element 1125, sealing interface 1126, sealing ring 1127, adjusting power element 113; Second control unit 12, motion seat 121, T-shaped sliding block 1211, outer cylinder 122, vertical slide groove 1221, first vertical arm 123, blind groove 1231, concave slide groove 1232, second vertical arm 124, long U-shaped follower groove 1241, protrusion 1242, rotational power module 125, turbine 1251, worm gear 1252, rotational power component 1253, pitch module 126, pitch axis 12 61. Small gear 1262. Rotating shaft 1263. Large gear 1264. Rotating arm 1265. Pitch power component 1266. Protective cover 1267. Hard top plate 12671. Follow-up bottom ring 12672. Elastic cover body 12673. Actuating piece 12674. Vertical power module 127. Separator 1271. Abutment platform 1272. Protrusion 1273. Vertical telescopic component 1274. Connecting frame 128. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0020] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0021] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0022] In this embodiment, please refer to Figures 1 to 4 This utility model provides a position adjustment structure for testing photovoltaic modules, comprising: A first control unit 11 and two second control units 12 are used. Two photovoltaic modules are respectively mounted on top of the two second control units 12. The first control unit 11 is used to adjust the two second control units 12 to move towards each other or in opposite directions to adjust the spacing between the photovoltaic module arrays. The second control units 12 are used to adjust the pitch angle of the photovoltaic modules with respect to the horizontal plane, adjust the orientation of the photovoltaic modules, and adjust the relative position of the photovoltaic modules with respect to the surface of the salt lake. The photovoltaic modules adopt double-sided double-glass technology.

[0023] The first control unit 11 includes an adjusting rod 111 rotatably installed inside the simulation chamber, a rotating sealing module 112, and an adjusting power component 113. The adjusting power component 113 includes a motor or a hydraulic motor. The adjusting rod 111 can be made of a corrosion-resistant material. One end of the adjusting rod 111 is rotatably sealed and connected to the rotating sealing module 112 and extends out of the simulation chamber. The rotating sealing module 112 allows the rod to rotate while maintaining a sealed state at the point of extension, protecting the internal environment and preventing leakage of seawater or salt water introduced into the simulation chamber. The adjusting rod 111 has two threads of the same length but different directions of rotation. The bottoms of the two second control units 12 each have threaded holes that mate with the threads of different directions of rotation on the adjusting rod 111. Each of the second control units has two inverted T-shaped sliding blocks 1211 at its bottom. The two T-shaped sliding blocks 1211 are located on both sides of the adjustment rod 111. The bottom of the simulation box has two T-shaped grooves that are slidably engaged with the two T-shaped sliding blocks 1211 respectively. The two second control units are driven to move simultaneously toward or in opposite directions on the adjustment rod 111 by the rotation of the adjustment power component 113 to adjust the spacing between the two photovoltaic modules.

[0024] The design of the first control unit 11 and the second control unit 12 enables omnidirectional attitude control of the photovoltaic modules, thereby achieving precise simulation of the position of the photovoltaic modules relative to the salt pond environment. The adjusting rod 111 is driven to rotate around its own axis by the adjusting power component 113. Two threads of the same length but different directions on the adjusting rod 111 engage with threaded holes on the two second control units to achieve simultaneous or opposite movements, improving synchronization and allowing for precise adjustment of the spacing between the photovoltaic modules on the second control units, thus simulating the spacing of the photovoltaic module array. Furthermore, two T-shaped grooves slide in contact with T-shaped sliding blocks 1211 at the bottom of the second control units. The T-shaped grooves bear the lateral forces and overturning moments during movement, forming a rigid guiding constraint, ensuring that the second control units move linearly along the axis of the adjusting rod 111, thereby ensuring the smoothness and accuracy of the spacing adjustment movement of the second control units. The second control unit adjusts the angle between the photovoltaic module and the horizontal plane to simulate the installation angle of the photovoltaic module when deployed in the salt pond area; it adjusts the orientation of the photovoltaic module by changing the azimuth angle to simulate the direction required for deployment in the salt pond area; and it simulates the relative distance between the photovoltaic module and the salt pond water surface by changing the height or precise position of the photovoltaic module relative to the water surface below. Each second control unit 12 adjusts the attitude of the photovoltaic module on its top independently, allowing the two photovoltaic modules to be adjusted to different angles according to their respective positions or experimental requirements.

[0025] In this embodiment, please refer to Figure 1 and Figure 4 The rotating sealing module 112 includes a rotating ring 1121, a rotating sealing ring 1122, a stationary sealing ring 1123, a stationary ring 1124 fixedly connected to the inner wall of the simulation chamber, and an elastic element 1125 for providing thrust to the stationary sealing ring 1123 towards the rotating sealing ring 1122. The stationary ring 1124 and the inner wall of the simulation chamber can be integrally formed. One end of the rotating sealing ring 1122 is connected to the rotating ring 1121 through multiple positioning pins, and one end of the stationary sealing ring 1123 is connected to the stationary ring 1124 through multiple positioning pins. The stationary ring 1124 has an annular groove 11241 that can accommodate the stationary sealing ring 1123. The other end of the rotating sealing ring 1122 is fitted with one end of the stationary sealing ring 1123 to form a sealing interface 1126 perpendicular to the axial direction of the adjusting rod 111.

[0026] The moving ring 1121 is fastened to the adjusting rod 111. The moving sealing ring 1122 is connected to the moving ring 1121 via a positioning pin. The moving sealing ring 1122 rotates with the adjusting rod 111. The stationary ring 1124 is fixed to the inner wall of the simulation chamber. The stationary sealing ring 1123 is precisely embedded in the annular groove 11241 of the stationary ring 1124. The stationary sealing ring 1123 is connected to the stationary ring 1124 via a positioning pin. The annular groove 11241 forms a radial rigid constraint on the stationary sealing ring 1123. The working end face of the sealing ring 1122 and the working end face of the stationary sealing ring 1123 are tightly fitted together under the thrust of the elastic element 1125 to form a sealing interface 1126 perpendicular to the axis of the adjusting rod 111. When the adjusting rod 111 rotates, the moving sealing ring 1122 rotates with it, and the stationary sealing ring 1123 remains stationary under the constraint of the annular groove 11241 but slides in contact with the working end face of the moving sealing ring 1122 to achieve dynamic sealing and prevent leakage of seawater or salt water introduced into the simulation tank.

[0027] In this embodiment, please refer to Figure 4 Each of the stationary sealing ring 1123 and the stationary ring body 1124, and the dynamic sealing ring 1122 and the dynamic ring body 1121, has a sealing ring 1127. The sealing ring 1127 is an O-ring or a lip ring, which forms an auxiliary seal by elastically deforming and filling the gap, greatly enhancing the sealing effect and maintaining sealing stability.

[0028] In this embodiment, please refer to Figure 4 The elastic element 1125 has multiple components, and the bottom of the annular groove 11241 has multiple mounting grooves 11242 for mounting multiple elastic elements 1125. The elastic element 1125 includes a spring, one end of which is connected to the bottom of the mounting groove 11242, and the other end is connected to one end of the stationary sealing ring 1123. Multiple springs are evenly arranged circumferentially along the annular groove 11241. Combined with the positioning function of the mounting groove 11242, they apply a balanced axial thrust to the stationary sealing ring 1123, ensuring that the sealing interface 1126 between the stationary sealing ring 1123 and the dynamic sealing ring 1122 experiences consistent force across the entire annular contact surface. This guarantees effective contact of the sealing interface 1126 and significantly improves sealing reliability.

[0029] In this embodiment, please refer to Figures 1 to 3The second control unit 12 includes a motion seat 121, an outer cylinder 122 vertically fixed above the motion seat 121, a first vertical arm 123 vertically and rotatably mounted inside the outer cylinder 122, a second vertical arm 124, a rotation power module 125 for driving the first vertical arm 123 to rotate, a pitch module 126 disposed on the top of the second vertical arm 124 for adjusting the pitch angle of the photovoltaic module, and a vertical power module 127 disposed inside the outer cylinder 122 for driving the second vertical arm 124 to move in the vertical direction. The second vertical arm 124 and the first vertical arm 123 are slidably and rotatably connected. The two motion seats 121 each have threaded holes that engage with the threads of the adjusting rod 111 in different directions, and each motion seat 121 has two inverted T-shaped sliding blocks 1211 at its bottom.

[0030] The two threads on the adjusting rod 111, with different directions of rotation, engage with the threaded holes of the two moving seats 121. When the adjusting rod 111 rotates, it causes the two moving seats 121 to move closer or further apart simultaneously, thus adjusting the array spacing of the two photovoltaic modules. The T-shaped sliding block 1211 at the bottom of the moving seat 121 slides with the T-shaped groove, ensuring that the moving seat 121 moves smoothly only along a straight line. The outer cylinder 122 is fixed on the moving seat 121 and moves synchronously with the moving seat 121. The first vertical arm 123 is rotatably installed inside the outer cylinder 122 and is driven by the rotation power module 125. The rotation of 123 drives the second vertical arm 124 to rotate, which in turn drives the photovoltaic module to rotate around the axis of the second vertical arm 124 to achieve azimuth adjustment, thereby simulating the direction required when deploying photovoltaic modules in the salt pond area; the vertical power module 127 located in the outer cylinder 122 drives the second vertical arm 124 to move in the vertical direction, thereby moving the photovoltaic module and adjusting the installation height of the photovoltaic module to simulate the relative distance between the photovoltaic module and the surface of the salt pond; the pitch module 126 adjusts the angle between the photovoltaic module and the horizontal plane to simulate the installation angle of the photovoltaic module when deployed in the salt pond area.

[0031] In this embodiment, please refer to Figure 1 and Figure 2The pitch module 126 includes a pitch shaft 1261 rotatably mounted on the top of the second vertical arm 124 and perpendicular to the central axis of the second vertical arm 124; a small gear 1262 coaxially fixedly engaged with the pitch shaft 1261; a rotating shaft 1263 rotatably mounted on the side wall of the second vertical arm 124; a large gear 1264 coaxially fixedly engaged with the rotating shaft 1263; a rotating arm 1265 vertically and fixedly connected to the rotating shaft 1263; a pitch power component 1266; and a protective cover 1267. The large gear 1264 meshes with the small gear 1262 for transmission. The protective cover 1267 is composed of a hard top plate 12671, a follower bottom ring 12672, and an elastic cover body 12673. The hard top plate 12671 is coaxially fixedly engaged with the central axis of the second vertical arm 124. The arm 124 is coaxially fixedly engaged, and the follower bottom ring 12672 is rotatably sealed to the top of the outer cylinder 122, allowing free rotation. The top and bottom of the elastic cover 12673 are fixedly connected to the rigid top plate 12671 and the follower bottom ring 12672, respectively. The second vertical arm 124 has a long U-shaped follower groove 1241 along its own axial direction. The inner wall of the follower bottom ring 12672 has a toggle piece 12674 facing the central axis of the second vertical arm 124 and slidingly engaged with the long U-shaped follower groove 1241. The fixed end and telescopic end of the pitch power component 1266 are hinged to the rigid top plate 12671 and the rotating arm 1265, respectively. The photovoltaic module is connected to the pitch axis 1261 through the connecting frame 128. The height of the long U-shaped follower groove 1241 is greater than the extension height of the second vertical arm 124, ensuring that the actuating plate 12674 remains within the groove and does not disengage during the entire lifting stroke. The long U-shaped follower groove 1241 and the actuating plate 12674 are provided in at least one set to improve transmission efficiency.

[0032] The extension and retraction of the pitch power component 1266 drives the rotating arm 1265 to rotate, which in turn drives the rotating shaft 1263 to rotate. The rotation of the rotating shaft 1263 drives the large gear 1264, which is fixedly engaged with the same axis, to rotate. The large gear 1264 meshes with the small gear 1262, which is fixedly engaged with the pitch shaft 1261, thereby driving the pitch shaft 1261 to rotate. Through the connecting frame 128, the photovoltaic module rotates around the pitch shaft 1261, thereby adjusting the angle between the photovoltaic module and the horizontal plane. The gear transmission ensures the adjustment accuracy and torque amplification. Simultaneously, when the second vertical arm 124 rotates, the actuating plate 12674 on the inner wall of the follower bottom ring 12672 embeds into the long U-shaped follower groove 1241, causing the follower bottom ring 12672 to rotate synchronously with the second vertical arm 124. When the second vertical arm 124 rises and falls, the actuating plate 12674 slides axially within the long U-shaped follower groove 1241, and the elastic cover 12673 compensates for height changes through axial extension and contraction. The design of the protective cover 1267 effectively protects the components inside the outer cylinder 122.

[0033] In this embodiment, please refer to Figure 2 The pitch power component 1266 includes a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0034] In this embodiment, please refer to Figure 3 The top of the first vertical arm 123 has an inward blind groove 1231 along its own axis, and the side wall of the blind groove 1231 has a plurality of concave sliding grooves 1232 in the circumferential direction. The bottom of the second vertical arm 124 has a plurality of protrusions 1242 that slide in cooperation with the concave sliding grooves 1232 respectively. The vertical power module includes a partition platform 1271 fixed inside the outer cylinder 122, an abutment platform 1272, a plurality of protrusions 1273 spaced apart along the circumferential sidewall of the abutment platform 1272, and a vertical telescopic member 1274 for driving the vertical movement of the abutment platform 1272. The first vertical arm 123 passes through the partition platform 1271 and is rotatably engaged, and the second vertical arm 124 passes through the abutment platform 1272 and is rotatably engaged. The inner wall of the outer cylinder 122 has vertical grooves 1221 near the top that are slidably engaged with the plurality of protrusions 1273. The fixed end and the telescopic end of the vertical telescopic member 1274 are connected to the partition platform 1271 and the abutment platform 1272, respectively.

[0035] The vertical telescopic component 1274 drives the contact platform 1272 to move up and down, which in turn drives the second vertical arm 124 to move up and down. The protrusion 1273 on the side wall of the contact platform 1272 slides axially in the vertical groove 1221 on the inner wall of the outer cylinder 122, while the protrusion 1242 slides axially in the concave groove 1232. This makes the power transmission efficient, the load capacity strong, the space compact, and the dual guidance improve stability, thereby improving the reliability and stability of the photovoltaic module test process.

[0036] In this embodiment, please refer to Figure 3 The vertical telescopic member 1274 includes a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0037] In this embodiment, please refer to Figure 3The rotational power module 125 includes a turbine 1251 coaxially fixed to the bottom of the first vertical arm 123 and located inside the outer cylinder 122, a worm gear 1252 rotatably installed inside the outer cylinder 122, and a rotational power component 1253 that drives the worm gear 1252 to rotate. The rotational power component 1253 includes a motor, and the turbine 1251 and the worm gear 1252 mesh and transmit power. The worm gear 1252 is driven to rotate by the rotating power component 1253. The turbine 1251 and the worm gear 1252 mesh and transmit power, and the rotational motion of the worm gear 1252 is converted into the rotational motion of the turbine 1251. The turbine 1251 is coaxially fixed with the first vertical arm 123. The rotation of the turbine 1251 directly drives the first vertical arm 123 to rotate around its own vertical axis. Then, through the second vertical arm 124, which is slidably and rotatably connected to the first vertical arm 123, the photovoltaic module is driven to rotate in the horizontal direction. The transmission between the worm gear 1252 and the turbine 1251 has a natural self-locking property (when the lead angle of the worm gear 1252 is less than the equivalent friction angle of the meshing surface), that is, the turbine 1251 cannot drive the worm gear 1252 in the reverse direction. When the rotating power component 1253 stops working, the first vertical arm 123 will not rotate on its own due to external force, and can stably maintain the current rotation angle, which greatly improves the anti-interference ability and stability of the photovoltaic module during testing.

[0038] Working principle: When adjusting the spacing of the photovoltaic module array, the adjusting rod 111 is driven to rotate around its own axis by the adjusting power component 113. The two threads of the same length but different directions on the adjusting rod 111 cooperate with the threaded holes on the two moving seats 121 to achieve simultaneous movement in opposite directions or in opposite directions, which improves the synchronization and enables precise adjustment of the spacing of the photovoltaic modules on the second control part, thereby simulating the spacing of the photovoltaic module array. When adjusting the height of the photovoltaic module, the vertical telescopic component 1274 drives the abutment platform 1272 to move up and down, which in turn drives the second vertical arm 124 to move up and down. The protrusion 1273 on the side wall of the abutment platform 1272 slides axially in the vertical groove 1221 on the inner wall of the outer cylinder 122, while the protrusion 1242 slides axially in the concave groove 1232. The actuating piece 12674 slides axially in the long U-shaped follower groove 1241. The elastic cover 12673 compensates for the height change through axial extension and contraction, thereby driving the photovoltaic module located at the top of the second vertical arm 124 to move up and down to adjust the relative position of the photovoltaic module with respect to the surface of the salt pond.

[0039] When adjusting the orientation of the photovoltaic module, the worm gear 1252 is driven to rotate by the rotating power component 1253. The turbine 1251 and the worm gear 1252 mesh and transmit power. The rotational motion of the worm gear 1252 is converted into the rotational motion of the turbine 1251. The turbine 1251 is fixed coaxially with the first vertical arm 123. The rotation of the turbine 1251 directly drives the first vertical arm 123 to rotate around its own vertical axis. Then, through the second vertical arm 124, which is slidably and rotatably connected to the first vertical arm 123, the photovoltaic module is driven to rotate in the horizontal direction. When adjusting the pitch angle, the extension and retraction of the pitch power component 1266 drives the rotating arm 1265 to rotate, which in turn drives the rotating shaft 1263 to rotate. The rotation of the rotating shaft 1263 drives the large gear 1264, which is fixedly engaged with the same axis, to rotate. The large gear 1264 meshes with the small gear 1262, which is fixedly engaged with the pitch shaft 1261, thereby driving the pitch shaft 1261 to rotate. Through the connecting frame 128, the photovoltaic module rotates around the pitch shaft 1261, thus adjusting the angle between the photovoltaic module and the horizontal plane. Simultaneously, when the second vertical arm 124 rotates, the actuating plate 12674 on the inner wall of the follower bottom ring 12672 is embedded in the long U-shaped follower groove 1241, causing the follower bottom ring 12672 to rotate synchronously with the second vertical arm 124. In summary, through the design of the first control unit 11 and the second control unit 12, this utility model enables all-round attitude control of the photovoltaic module, thereby achieving precise simulation of the position of the photovoltaic module and the salt pond environment. The adjusting rod 111 is driven to rotate around its own axis by the adjusting power component 113. Two threads of the same length but different directions on the adjusting rod 111 engage with the threaded holes on the two second control parts to achieve simultaneous or opposite movements, improving synchronization and enabling precise adjustment of the spacing of the photovoltaic modules on the second control parts, thereby simulating the spacing of the photovoltaic module array. Furthermore, two T-shaped grooves engage with the T-shaped sliding blocks 1211 at the bottom of the second control parts. The T-shaped grooves bear the lateral force and overturning moment during movement, forming a rigid guiding constraint, allowing the second control parts to move linearly along the axis of the adjusting rod 111, thus ensuring the smoothness and accuracy of the spacing adjustment movement of the second control parts. The angle between the photovoltaic modules and the horizontal plane is adjusted by the second control parts to simulate the installation angle of the photovoltaic modules when deployed in the salt pond area; the orientation of the photovoltaic modules is adjusted by changing the azimuth angle to simulate the direction required for deployment in the salt pond area; and the relative distance between the photovoltaic modules and the salt pond water surface is simulated by changing the height or precise position of the photovoltaic modules relative to the water surface below. Each second control unit 12 independently adjusts the attitude of its top photovoltaic module, allowing the two photovoltaic modules to be adjusted to different angles according to their respective positions or experimental requirements. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A position adjustment structure for photovoltaic module testing, characterized by, include: The first control unit and two second control units are respectively located on top of the two second control units. The first control unit is used to adjust the two second control units to move towards each other or in opposite directions at the same time. The second control units are used to adjust the pitch angle of the photovoltaic module with respect to the horizontal plane, adjust the orientation of the photovoltaic module, and adjust the relative position of the photovoltaic module with respect to the surface of the salt lake. The first control unit includes an adjusting rod rotatably installed inside the simulation box, a rotating sealing module, and an adjusting power component. One end of the adjusting rod is rotatably sealed and connected to the rotating sealing module and extends out of the simulation box. The adjusting rod is provided with two threads of the same length but different directions of rotation. The bottom of the two second control units are respectively provided with threaded holes that are threaded to the threads of different directions of rotation on the adjusting rod. Each of the second control units has two inverted T-shaped sliding blocks at the bottom, with the two T-shaped sliding blocks located on both sides of the adjustment rod. The bottom of the simulation box has two T-shaped grooves that slide in cooperation with the two T-shaped sliding blocks respectively. The two second control units are driven to move simultaneously toward or in opposite directions on the adjustment rod by the rotation of the adjustment power component to adjust the spacing between the two photovoltaic modules.

2. The position adjustment structure for photovoltaic module test according to claim 1, characterized by: The rotary sealing module includes a rotating ring body, a rotating sealing ring, a stationary sealing ring, and a stationary sealing ring, all coaxially fixedly fitted with the adjusting rod. The stationary sealing ring body is fixedly connected to the inner wall of the simulation chamber. An elastic element is used to provide thrust to the stationary sealing ring towards the rotating sealing ring. One end of the rotating sealing ring is connected to the rotating ring body via multiple positioning pins, and one end of the stationary sealing ring is connected to the stationary ring body via multiple positioning pins. The stationary ring body has an annular groove that can accommodate the stationary sealing ring. The other end of the rotating sealing ring fits against one end of the stationary sealing ring to form a sealing interface perpendicular to the axial direction of the adjusting rod.

3. The position adjustment structure for photovoltaic module test according to claim 2, characterized by: There are sealing rings between the stationary sealing ring and the stationary ring body, and between the dynamic sealing ring and the dynamic ring body.

4. The position adjustment structure for photovoltaic module test according to claim 2, characterized by: The elastic element is multiple, and the bottom of the annular groove has multiple mounting grooves for mounting the multiple elastic elements; The elastic element includes a spring, one end of which is connected to the bottom of the mounting groove, and the other end of which is connected to one end of the static sealing ring.

5. The position adjustment structure for photovoltaic module testing according to claim 1, characterized by: The second control unit includes a motion seat, an outer cylinder vertically fixed above the motion seat, a first vertical arm vertically and rotatably installed inside the outer cylinder, a second vertical arm, a rotation power module for driving the first vertical arm to rotate, a pitch module disposed at the top of the second vertical arm for adjusting the pitch angle of the photovoltaic module, and a vertical power module disposed inside the outer cylinder for driving the second vertical arm to move in the vertical direction. The second vertical arm and the first vertical arm are slidably and rotatably connected. Each of the two motion seats has a threaded hole that engages with the threaded thread of the adjusting rod in a different direction, and each motion seat has two inverted T-shaped sliding blocks at the bottom.

6. The position adjustment structure for photovoltaic module test according to claim 5, characterized by: The pitch module includes a pitch shaft rotatably mounted on the top of the second vertical arm and perpendicular to the central axis of the second vertical arm, a small gear coaxially fixedly engaged with the pitch shaft, a rotating shaft rotatably mounted on the side wall of the second vertical arm, a large gear coaxially fixedly engaged with the rotating shaft, a rotating arm vertically and fixedly connected to the rotating shaft, a pitch power component, and a protective cover. The large gear meshes with the small gear for transmission. The protective cover consists of a rigid top plate, a follower bottom ring, and an elastic cover body. The rigid top plate is coaxially fixed with the second vertical arm. The following components are fixedly fitted, with the follower bottom ring rotating and sealingly fitted to the top of the outer cylinder. The top and bottom of the elastic cover are fixedly connected to the hard top plate and the follower bottom ring, respectively. The second vertical arm has a long U-shaped follower groove along its own axial direction. The inner wall of the follower bottom ring has a sliding piece facing the central axis of the second vertical arm and slidingly fitted with the long U-shaped follower groove. The fixed end and telescopic end of the pitch power component are hinged to the hard top plate and the rotating arm, respectively. The photovoltaic module is connected to the pitch axis through a connecting frame.

7. The position adjustment structure for photovoltaic module test according to claim 6, characterized by: The pitching power component includes a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

8. The position adjustment structure for photovoltaic module test according to claim 5, characterized by: The top of the first vertical arm has an inward blind groove along its own axis, and the sidewall of the blind groove has a plurality of concave sliding grooves in the circumferential direction. The bottom of the second vertical arm has a plurality of protrusions that slide in cooperation with the concave sliding grooves in the circumferential direction. The vertical power module includes a partition platform, an abutment platform, and multiple protrusions spaced circumferentially along the sidewall of the abutment platform, all fixed inside the outer cylinder. A vertical telescopic member drives the abutment platform to move vertically. The first vertical arm passes through the partition platform and is rotatably engaged, and the second vertical arm passes through the abutment platform and is rotatably engaged. The inner wall of the outer cylinder has vertical grooves near the top that are slidably engaged with the multiple protrusions. The fixed end and telescopic end of the vertical telescopic member are connected to the partition platform and the abutment platform, respectively.

9. The position adjustment structure for photovoltaic module testing according to claim 8, characterized by: The vertical telescopic component includes a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

10. The position adjustment structure for photovoltaic module testing according to claim 5, characterized by: The rotational power module includes a turbine coaxially fixed to the bottom of the first vertical arm and located inside the outer cylinder, a worm gear rotatably installed inside the outer cylinder, and a rotational power component that drives the worm gear to rotate. The turbine and the worm gear mesh and transmit power.

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