Clamping device for testing connection load of photovoltaic module and load testing equipment

Abstract

The utility model relates to a clamping device for testing a connection load of a photovoltaic module and load testing equipment, the clamping device comprises a profile assembly and a plurality of clamping assemblies, and all the clamping assemblies are respectively arranged at a plurality of different positions on the profile assembly and are used for being fixedly connected with a plurality of different positions of a frame of the photovoltaic module. Each clamping assembly comprises a clamp and a fastener connected with the clamp, and each clamp comprises an installation part detachably installed on the corresponding profile assembly and a supporting part arranged in a protruding mode towards the central area of the corresponding profile assembly. And the fastener is detachably arranged on the supporting part and is used for fixing the frame of the photovoltaic module on the supporting part. The multiple different positions of the frame of the photovoltaic module are fixed to the supporting parts of the multiple clamping assemblies through the fasteners respectively so as to be suitable for simulating and testing the testing work of the photovoltaic modules in different installation modes, the testing result of the photovoltaic module better conforms to the actual working condition, and the testing result is more accurate.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to a clamping device and load testing equipment for testing the connection load of a photovoltaic module. Background Art

[0002] With the development of photovoltaic technology, the requirements for the stability of photovoltaic modules during outdoor installation are becoming increasingly higher. It is usually necessary to ensure that photovoltaic modules can operate smoothly outdoors for 25 years without being damaged by external loads. Load testing equipment is a test instrument used to evaluate the performance of materials and structures of photovoltaic modules under mechanical loads. It simulates the safe load-bearing capacity of photovoltaic modules under wind pressure, snow pressure, and mechanical pressure under different outdoor installation conditions. The equipment controls the up and down movement of the cylinder to gradually and evenly apply the load to the surface of the photovoltaic module. The equipment requires that the minimum surface coverage of the suction cup area is ≥10%, the maximum vertical center distance between the suction cups is ≤20cm, the distance between the suction cup and the frame of the photovoltaic module is ≤20cm, and the load uniformity of the entire photovoltaic module is better than ±5%, thereby ensuring that the test results are consistent with the actual load of the photovoltaic module.

[0003] In actual load testing equipment, photovoltaic modules are supported by photovoltaic racks to receive solar power. Different mounting methods result in different force transmission and corresponding loads. Therefore, when conducting mechanical load tests on photovoltaic modules, the module mounting method must be consistent with the actual installation method. The most common mounting methods include mounting the module perpendicular to the long side of the purlin and mounting the module parallel to the long side of the module.

[0004] However, load testing equipment currently available on the market typically uses two U-shaped steel purlins on an 80x80 profile, and can only simulate bolted and clamped installation methods with U-shaped steel purlins. However, with the cost reduction and efficiency improvement of mounting systems and the increase in residential photovoltaic installations, various installation methods, such as clamp-only installation and purlin-with-pressure-block installation, are gradually increasing. Load testing equipment currently available cannot accurately simulate the connection loads of these various installation methods. Utility Model Content

[0005] Based on this, it is necessary to overcome the defects of the existing technology and provide a clamping device and load testing equipment for testing the connection load of photovoltaic modules, which can more accurately simulate more installation methods and the test results of the connection load are more accurate.

[0006] A clamping device for testing the connection load of a photovoltaic module, the clamping device for testing the connection load of a photovoltaic module comprising a profile assembly, the profile assembly comprising two first profiles arranged at relative intervals and two second profiles arranged at relative intervals, the two second profiles being installed above the first profiles and respectively connected to the two first profiles; the clamping device for testing the connection load of a photovoltaic module further comprises a plurality of clamping assemblies, all of the clamping assemblies being respectively installed at a plurality of different positions on the profile assembly, and being used to be connected and fixed to a plurality of different positions of the frame of the photovoltaic module; each of the clamping assemblies comprises a clamp and a fastener connected to the clamp, the clamp comprising a mounting portion detachably mounted on the profile assembly and a support portion protruding toward the central area of ​​the profile assembly; the fastener is detachably arranged on the support portion, and is used to fix the frame of the photovoltaic module on the support portion.

[0007] In one embodiment, the profile assembly further includes at least one third profile respectively mounted on each of the first profiles; the upper surface of each of the third profiles is in the same plane as the upper surface of each of the second profiles.

[0008] In one embodiment, the first profile is provided with a plurality of first mounting holes arranged in sequence along the extension direction x, the third profile is provided with at least one second mounting hole, and the profile assembly further includes a first locking member arranged corresponding to the third profile, and the first locking member passes through the second mounting hole and any one of the first mounting holes to connect and fix the first profile to the third profile.

[0009] In one embodiment, the mounting portion is formed with a mounting groove, and the top of the second profile and the top of the third profile can each be accommodated and fixed inside the mounting groove. The clamp also includes a second locking member installed on the mounting portion, and the second locking member is used to lock the mounting portion to the top of the second profile or the top of the third profile.

[0010] In one embodiment, the distance between the mounting groove and the two side walls decreases from the groove opening to the groove bottom.

[0011] In one embodiment, the second profile and the third profile are both provided with limiting grooves extending along their respective length directions, and the clamp also includes a movable block connected to the second locking member, and the movable block can move along the extension direction of the limiting groove, and the edge of the notch of the limiting groove is provided with a limiting portion that abuts against the movable block to prevent the movable block from detaching outward through the notch of the limiting groove.

[0012] In one embodiment, the mounting portion includes a mounting plate and a first positioning plate and a second positioning plate respectively connected to opposite sides of the mounting plate, and the first positioning plate, the mounting plate and the second positioning plate enclose the mounting groove; the first positioning plate is connected to the supporting portion, and the second positioning plate is used to abut and fix with the side of the second profile or the third profile facing away from the photovoltaic component.

[0013] In one embodiment, at least one of the clamping components further includes a pressing member mounted on the support portion, the pressing member being used to press the frame of the photovoltaic component, and the fastener being connected to the pressing member and capable of adjusting the pressing force of the pressing member on the frame of the photovoltaic component.

[0014] In one embodiment, the support portion is provided with a plurality of third mounting holes arranged in sequence and spaced apart in a direction close to the central area of ​​the profile assembly. The fastener can pass through any one of the third mounting holes and be locked and fixed to the frame of the photovoltaic assembly, or be locked and fixed to the clamping member so that the clamping member is pressed against the frame of the photovoltaic assembly.

[0015] A load testing device comprises the clamping device for testing the connection load of a photovoltaic module.

[0016] The above-mentioned clamping device and load testing equipment for testing the connection load of photovoltaic modules, since they include multiple clamping assemblies, can determine the installation position of each clamping assembly on the profile assembly according to actual needs, and since the support portion of the clamping assembly is protruding toward the central area of ​​the profile assembly, multiple different positions of the frame of the photovoltaic module can be fixed on the support portions of multiple clamping assemblies by fasteners, so as to be suitable for simulating the testing of photovoltaic modules with different installation methods. At the same time, the photovoltaic module will not contact the existing U-shaped purlins during the load test, and the test results of the photovoltaic module will be more in line with the actual working conditions, and the test results will be more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a photovoltaic module installed on a clamping device for testing the connection load of a photovoltaic module according to an embodiment of the present application.

[0018] Figure 2 for Figure 1 An enlarged structural diagram of one portion of the structure shown.

[0019] Figure 3 for Figure 2 The clamping assembly in the structure shown is installed on the third profile.

[0020] Figure 4 for Figure 3A breakdown structure diagram of the structure shown.

[0021] Figure 5 for Figure 1 An enlarged structural diagram of another part of the structure shown.

[0022] Figure 6 for Figure 5 The clamping assembly in the structure shown includes a structural diagram of a pressing member.

[0023] 10. Profile assembly; 11. First profile; 12. Second profile; 13. Third profile; 14. Limiting groove; 141. Limiting portion; 20. Clamping assembly; 21. Clamp; 211. Mounting portion; 2111. Mounting groove; 2112. Mounting plate; 2113. First positioning plate; 2114. Second positioning plate; 212. Support portion; 2121. Third mounting hole; 213. Second locking member; 214. Movable block; 22. Fastener; 23. Pressing member; 231. Pressing block; 30. Photovoltaic module; 31. Frame; 311. Corner; 312. Short side; 313. Long side. DETAILED DESCRIPTION

[0024] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0025] See Figure 1 , Figure 1 A structural diagram of a photovoltaic module 30 installed on a clamping device for testing the connection load of a photovoltaic module according to an embodiment of the present application is shown. An embodiment of the present application provides a clamping device for testing the connection load of a photovoltaic module. The clamping device for testing the connection load of a photovoltaic module includes a profile assembly 10. The profile assembly 10 includes two first profiles 11 relatively spaced apart and two second profiles 12 relatively spaced apart. The two second profiles 12 are both installed above the first profile 11 and are respectively connected to the two first profiles 11. The clamping device for testing the connection load of a photovoltaic module also includes a plurality of clamping assemblies 20. All the clamping assemblies 20 are respectively installed at a plurality of different positions on the profile assembly 10, and are used to connect and fix with a plurality of different positions of the frame 31 of the photovoltaic module 30. Please refer to Figures 2 to 4Each clamping assembly 20 includes a clamp 21 and a fastener 22 connected to the clamp 21. The clamp 21 includes a mounting portion 211 that is detachably mounted on the profile assembly 10 and a support portion 212 that protrudes toward the center of the profile assembly 10. The fastener 22 is detachably mounted on the support portion 212 to secure the frame 31 of the photovoltaic assembly 30 to the support portion 212.

[0026] The above-mentioned clamping device for testing the connection load of photovoltaic modules, since it includes multiple clamping assemblies 20, can determine the installation position of each clamping assembly 20 on the profile assembly 10 according to actual needs, and since the support portion 212 of the clamping assembly 20 is protruding toward the central area of ​​the profile assembly 10, multiple different positions of the frame 31 of the photovoltaic module 30 can be fixed on the support portions 212 of multiple clamping assemblies 20 by fasteners 22, so as to be suitable for simulating the testing of photovoltaic modules 30 with different installation methods. At the same time, the photovoltaic module 30 will not contact the existing U-shaped purlin during the load test, and the test results of the photovoltaic module 30 will be more in line with the actual working conditions, and the test results will be more accurate.

[0027] It should be noted that the different installation methods of the photovoltaic component 30 on the profile component 10 may specifically be at least one of the following: the different number of clamping components 20, the different positions of the clamping components 20 on the profile component 10, the different specific types of fasteners 22 used in the clamping components 20, the different specific connection methods between the fasteners 22 and the frame 31 of the photovoltaic component 30, etc., which can be flexibly adjusted and set according to actual needs.

[0028] For one of the installation methods, recorded as installation method one, the clamping components 20 are set as four, for example, two of which are installed on one of the second profiles 12, and are respectively connected and fixed to the two corners 311 of one of the short sides 312 of the photovoltaic component 30; the other two clamping components 20 are installed on the other second profile 12, and are respectively connected and fixed to the two corners 311 of the other short side 312 of the photovoltaic component 30, for example. As an example, when there is no reserved mounting hole at the corner 311 of the short side 312, the clamping assembly 20 also includes a clamping member 23 installed on the support portion 212, and the clamping member 23 is pressed on the frame 31 of the photovoltaic component 30. The fastener 22 is, for example, a locking bolt. The fastener 22 is connected to the clamping member 23, that is, it is indirectly connected to the frame 31 of the photovoltaic component 30. The fastener 22 can adjust the clamping force of the clamping member 23 on the frame 31 of the photovoltaic component 30, so that the photovoltaic component 30 can be fixedly installed on the support portion 212, and the photovoltaic component 30 can be disassembled.

[0029] In another installation method, referred to as installation method two, four clamping assemblies 20 are provided, for example, with two clamping assemblies 20 mounted on one of the first profiles 11 and respectively connected and fixed to, for example, one of the long sides 313 of the photovoltaic assembly 30; and the other two clamping assemblies 20 are mounted on the other first profile 11 and respectively connected and fixed to, for example, the other long side 313 of the photovoltaic assembly 30. As an example, since a large area is reserved for mounting holes on the long side 313 of the frame 31 of the photovoltaic assembly 30, and mounting holes are arranged, for example, fasteners 22 include but are not limited to fastening bolts, fastening screws, clips, etc., and the fasteners 22 pass through the mounting holes to connect and fix the frame 31 to the support portion 212 of the clamping assembly 20.

[0030] For another installation method, recorded as installation method three, the clamping components 20 are set to eight, for example, four of which are installed according to the installation method one in the above embodiment, and the other four clamping components 20 are installed according to the installation method two in the above embodiment.

[0031] On the basis of the above-mentioned embodiments, especially for the above-mentioned installation method three, since the second profile 12 is located above the first profile 11, when the specific shape and size of the clamping assembly 20 installed on the first profile 11 and the second profile 12 are the same, in order to achieve the photovoltaic component 30 being stably connected and fixed on the profile assembly 10, the profile assembly 10 also includes a third profile 13 installed on the first profile 11, so that the upper surface of the second profile 12 and the upper surface of the third profile 13 are at the same horizontal height, and then the clamping assembly 20 connected to the long side 313 of the photovoltaic component 30 are all installed on the third profile 13, that is, indirectly connected to the first profile 11 through the third profile 13, so that the photovoltaic component 30 can be stably installed on the profile assembly 10.

[0032] It should be noted that the upper surface of the profile in this embodiment refers to the side facing the photovoltaic assembly 30 .

[0033] In some examples, the first profile 11, the second profile 12, and the third profile 13 are of the same type, specifically, profiles having consistent cross-sectional profile shapes and dimensions along the extension direction. In this embodiment, the cross-sectional profiles of the first profile 11, the second profile 12, and the third profile 13 along the extension direction are rectangular, polygonal, circular, or other regular or irregular shapes, etc., which can be flexibly selected and configured according to actual needs. The first profile 11, the second profile 12, and the third profile 13 are, for example, aluminum alloy profiles, for example, obtained by pultrusion and integral molding using the same molding die.

[0034] Of course, as some optional solutions, the first profile 11, the second profile 12 and the third profile 13 can each adopt different types of profiles, as long as the upper surface of the second profile 12 and the upper surface of the third profile 13 are at the same horizontal level.

[0035] In one embodiment, the profile assembly 10 further comprises at least one third profile 13 respectively arranged on each first profile 11; the upper surface of each third profile 13 is at the same plane as the upper surface of each second profile 12.

[0036] In a specific embodiment, the number of third profiles 13 mounted on each first profile 11 is flexibly adjusted and set according to actual needs, including but not limited to one, two, three or more.

[0037] In some embodiments, in order to realize more mounting modes, the mounting position of the third profile 13 on the first profile 11 along the extension direction X of the first profile 11 is adjustable, and the specific mounting position can be flexibly selected according to actual needs. It should be noted that there are many ways to adjust the mounting position of the third profile 13 on the first profile 11, for example, the first profile 11 is provided with a plurality of mounting positions along the extension direction x, and the third profile 13 is selectively and detachably arranged at any one of the mounting positions; for another example, the third profile 13 is connected with the first profile 11 at any one of the mounting positions on the first profile 11 by, for example, a clamping piece.

[0038] In one embodiment, the first profile 11 is provided with a plurality of first mounting holes arranged along the extension direction x in sequence and at intervals, the third profile 13 is provided with at least one second mounting hole, and the profile assembly 10 further comprises a first locking piece arranged corresponding to the third profile 13, the first locking piece passes through the second mounting hole and any one of the first mounting holes to connect and fix the first profile 11 and the third profile 13.

[0039] In some embodiments, the locking piece includes but is not limited to a bolt, a screw, a pin, a rivet, a clamping piece and the like. The first mounting hole and the second mounting hole are mounting holes arranged corresponding to the locking piece.

[0040] In one embodiment, the mounting portion 211 is formed with a mounting groove 2111. The top of the second profile 12 and the top of the third profile 13 can each be received and fixed within the mounting groove 2111. The clamp 21 also includes a second locking member 213 mounted on the mounting portion 211. The second locking member 213 is used to lock and fix the mounting portion 211 to the top of the second profile 12 or the top of the third profile 13. In this way, whether the clamping assembly 20 is mounted on the second profile 12 or the third profile 13, the mounting groove 2111 is used to receive and fix the profile, thereby achieving a tight grip on the profile, and the second locking member 213 is used to lock and fix the clamping assembly 20 to the profile, thereby achieving a high degree of installation stability.

[0041] In some embodiments, the second locking member 213 includes, but is not limited to, a bolt, and the mounting portion 211 is formed with a mounting hole corresponding to the second fastener 22. The second locking member 213 passes through the mounting hole of the mounting portion 211 and is locked and fixed to the second profile 12 or the third profile 13, thereby ensuring that the mounting portion 211 is firmly mounted on the profile.

[0042] In one embodiment, the spacing between the mounting groove 2111 and the two side walls decreases from the notch to the bottom of the mounting groove 2111. That is, the mounting groove 2111 is configured as a wedge-shaped groove, which facilitates the assembly of the clamp 21 from top to bottom onto the second profile 12 or the third profile 13, facilitating bolt hole alignment, convenient installation, and a secure connection, greatly improving the efficiency of the clamp 21 installation.

[0043] See also Figures 1 to 4 In one embodiment, the second profile 12 and the third profile 13 are each provided with a limiting slot 14 extending along their respective lengths. The clamp 21 also includes a movable block 214 connected to the second locking member 213. The movable block 214 is movable along the extending direction of the limiting slot 14. The edge of the notch of the limiting slot 14 is provided with a limiting portion 141 that abuts against the movable block 214 to prevent the movable block 214 from disengaging from the notch of the limiting slot 14. Thus, before the second locking member 213 is locked with the movable block 214, the movable block 214 can be pushed along the length of the second profile 12 or the third profile 13 to a target position. The second locking member 213 then locks the movable block 214, so that the movable block 214 and the second locking member 213 clamp the limiting portion 141, thereby stably mounting the clamping assembly 20 on the second profile 12 or the third profile 13. Since the clamping assembly 20 can adjust its position along the respective length directions of the second profile 12 and the third profile 13 , it can satisfy simulation tests of more installation methods of the photovoltaic assembly 30 on the profile assembly 10 .

[0044] In some embodiments, the limiting groove 14 on the second profile 12 extends through opposite ends of the second profile 12 along the length of the second profile 12, and the limiting groove 14 on the third profile 13 extends through opposite ends of the third profile 13 along the length of the third profile 13. The cross-sectional profile of the movable block 214 along the extension direction of the limiting groove 14 is adapted to the cross-sectional profile of the limiting groove 14 along the extension direction. In this way, before the second locking member 213 locks the movable block 214, the movable block 214 provided on the second profile 12 can freely and smoothly adjust its position along the extension direction y of the limiting groove 14 of the second profile 12, and the movable block 214 provided on the third profile 13 can freely and smoothly adjust its position along the extension direction x of the limiting groove 14 of the third profile 13.

[0045] In some embodiments, the number of limiting slots 14 defined on the top of each of the second profile 12 and the third profile 13 is flexibly adjusted and configured based on actual needs, such as one, two, three, or more. When multiple limiting slots 14 are defined on the top of the second profile 12, the limiting slots 14 on the second profile 12 are arranged in parallel and spaced apart. When multiple limiting slots 14 are defined on the top of the third profile 13, the limiting slots 14 on the third profile 13 are arranged in parallel and spaced apart.

[0046] In some embodiments, the number of second locking members 213 and movable blocks 214 in each clamp 21 is independently set, including but not limited to one, two, three, four, or more. Specifically, for each clamp 21, there are multiple second locking members 213 and movable blocks 214, and each second locking member 213 is correspondingly connected and fixed to each movable block 214. In this way, the mounting portion 211 of each clamp 21 utilizes not only one second locking member 213 and one movable block 214 to securely mount on the second profile 12 or the third profile 13, but also multiple second locking members 213 and multiple movable blocks 214 to securely mount on the second profile 12 or the third profile 13, thereby improving installation stability.

[0047] In one embodiment, the mounting portion 211 includes a mounting plate 2112 and a first positioning plate 2113 and a second positioning plate 2114 connected to opposite sides of the mounting plate 2112. The first positioning plate 2113, the mounting plate 2112, and the second positioning plate 2114 together form a mounting slot 2111. The first positioning plate 2113 is connected to the support portion 212, and the second positioning plate 2114 is used to abut and secure against a side of the second profile 12 or the third profile 13 facing away from the photovoltaic module 30. Specifically, the mounting plate 2112 is used to mount a second locking member 213. The second locking member 213, for example, passes through a mounting hole in the mounting plate 2112 and then connects to a movable block 214 within the limiting slot 14. In this way, during the pull-up or press-down test of the photovoltaic component 30, since the second positioning plate 2114 is abutted and fixed to the side of the second profile 12 or the third profile 13 facing away from the photovoltaic component 30, the inward pulling force of the photovoltaic component 30 can be offset, the clamp 21 is not easy to deform, the actual service life of the clamp 21 and the profile assembly 10 is longer, and the test is more in line with actual working conditions, and the test results are more accurate.

[0048] See also Figure 5 and Figure 6 In one embodiment, at least one clamping assembly 20 further includes a pressing member 23 mounted on the support portion 212. The pressing member 23 is used to press the frame 31 of the photovoltaic module 30. Specifically, the pressing member 23 is provided with a pressing block 231 in an L-shape, for example. The two right-angled sides of the L-shaped pressing block 231 are respectively fitted and pressed against the corners 311 of the frame 31, for example, and have high stability. In addition, the fastener 22 is connected to the pressing member 23, and the pressing force of the pressing member 23 on the frame 31 of the photovoltaic module 30 can be adjusted. In this way, the clamping assembly 20 can be directly connected and fixed to the frame 31 of the photovoltaic module 30 using the fastener 22, or the frame 31 of the photovoltaic module 30 can be pressed by the pressing member 23, so that it can be suitable for simulating the testing of photovoltaic modules 30 with different installation methods.

[0049] In one embodiment, the support portion 212 is provided with a plurality of third mounting holes 2121 spaced apart in a direction close to the center area of ​​the profile assembly 10. The fastener 22 can be passed through any of the third mounting holes 2121 and then locked and fixed to the frame 31 of the photovoltaic module 30, or locked and fixed to the clamping member 23, so that the clamping member 23 is pressed against the frame 31 of the photovoltaic module 30. In this way, the third mounting holes 2121 at appropriate locations can be selected and aligned with the mounting holes reserved on the frame 31 of the photovoltaic module 30, thereby facilitating the connection and fixation of the fastener 22 to the frame 31 of the photovoltaic module 30 and the support portion 212, respectively. In addition, by selecting the third mounting holes 2121 at appropriate locations and aligning them with the mounting holes reserved on the clamping member 23, the clamping position of the clamping member 23 on the frame 31 of the photovoltaic module 30 can be adjusted to adapt to the clamping and fixation of the frames 31 of photovoltaic modules 30 of different sizes, thereby facilitating the installation and fixation of the photovoltaic module 30.

[0050] In some specific embodiments, during the actual installation process, according to the actual test plan, the clamp 21 is fixed at the required point, the clamp 21 profile connecting bolts are initially tightened, and then the photovoltaic component 30 is placed, the blocks or bolts are installed as required, and the hole position of the clamp 21 is further adjusted. After the clamp 21 profile bolts are fully pre-tightened, the bolts are finally tightened to the tightening torque.

[0051] See also Figure 1 In one embodiment, a load testing device is provided, and the load testing device includes the clamping device for testing the connection load of a photovoltaic module according to any of the above embodiments.

[0052] The above-mentioned load testing equipment, since it includes multiple clamping assemblies 20, can determine the installation position of each clamping assembly 20 on the profile assembly 10 according to actual needs, and since the support portion 212 of the clamping assembly 20 is protruding toward the central area of ​​the profile assembly 10, multiple different positions of the frame 31 of the photovoltaic assembly 30 can be fixed on the support portions 212 of multiple clamping assemblies 20 by fasteners 22, so as to be suitable for simulating the testing of photovoltaic assemblies 30 with different installation methods. At the same time, the photovoltaic assembly 30 will not contact the existing U-shaped purlin during the load test, and the test results of the photovoltaic assembly 30 will be more in line with the actual working conditions, and the test results will be more accurate.

[0053] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0054] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0055] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0056] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0057] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0058] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A clamping device for testing the connection load of a photovoltaic module, the clamping device for testing the connection load of a photovoltaic module comprising a profile assembly (10), the profile assembly (10) comprising two first profiles (11) arranged at a relative interval and two second profiles (12) arranged at a relative interval, the two second profiles (12) being installed above the first profile (11) and respectively connected to the two first profiles (11); characterized in that: The clamping device for testing the connection load of a photovoltaic assembly (30) further comprises a plurality of clamping assemblies (20), all of which are respectively mounted at a plurality of different positions on the profile assembly (10) and are used to be connected and fixed to a plurality of different positions of a frame (31) of the photovoltaic assembly (30); each of the clamping assemblies (20) comprises a clamp (21) and a fastener (22) connected to the clamp (21); the clamp (21) comprises a mounting portion (211) detachably mounted on the profile assembly (10) and a supporting portion (212) protruding toward a central area of ​​the profile assembly (10); the fastener (22) is detachably mounted on the supporting portion (212) and is used to fix the frame (31) of the photovoltaic assembly (30) to the supporting portion (212).

2. The clamping device for testing the connection load of a photovoltaic module according to claim 1, characterized in that: The profile assembly (10) further comprises at least one third profile (13) respectively mounted on each of the first profiles (11); the upper surface of each of the third profiles (13) and the upper surface of each of the second profiles (12) are on the same plane.

3. The clamping device for testing the connection load of a photovoltaic module (30) according to claim 2, characterized in that: The first profile (11) is provided with a plurality of first mounting holes arranged in sequence and spaced apart along the extension direction x, the third profile (13) is provided with at least one second mounting hole, the profile assembly (10) further comprises a first locking member arranged corresponding to the third profile (13), the first locking member passes through the second mounting hole and any one of the first mounting holes to connect and fix the first profile (11) and the third profile (13).

4. The clamping device for testing the connection load of a photovoltaic module according to claim 2, characterized in that: The mounting portion (211) is formed with a mounting groove (2111), and the top of the second profile (12) and the top of the third profile (13) can each be accommodated and fixed inside the mounting groove (2111). The clamp (21) also includes a second locking member (213) installed on the mounting portion (211), and the second locking member (213) is used to lock and fix the mounting portion (211) to the top of the second profile (12) or the top of the third profile (13).

5. The clamping device for testing the connection load of a photovoltaic module according to claim 4, characterized in that: The distance between the installation groove (2111) and the two side walls tends to decrease in the direction from the groove opening to the groove bottom of the installation groove (2111).

6. The clamping device for testing the connection load of a photovoltaic module according to claim 4, characterized in that: The second profile (12) and the third profile (13) are both provided with a limiting groove (14) extending along their respective length directions. The clamp (21) also includes a movable block (214) connected to the second locking member (213). The movable block (214) can move along the extension direction of the limiting groove (14). The edge of the notch of the limiting groove (14) is provided with a limiting portion (141) that abuts and cooperates with the movable block (214) to prevent the movable block (214) from detaching outward through the notch of the limiting groove (14).

7. The clamping device for testing the connection load of a photovoltaic module according to claim 4, characterized in that: The mounting portion (211) includes a mounting plate (2112) and a first positioning plate (2113) and a second positioning plate (2114) respectively connected to opposite sides of the mounting plate (2112), wherein the first positioning plate (2113), the mounting plate (2112) and the second positioning plate (2114) enclose and form the mounting groove (2111); the first positioning plate (2113) is connected to the supporting portion (212), and the second positioning plate (2114) is used for abutting and fixing with a side of the second profile (12) or the third profile (13) facing away from the photovoltaic module (30).

8. The clamping device for testing the connection load of a photovoltaic module according to claim 1, characterized in that: At least one of the clamping assemblies (20) further comprises a pressing member (23) mounted on the supporting portion (212), wherein the pressing member (23) is used to press the frame (31) of the photovoltaic assembly (30), and the fastener (22) is connected to the pressing member (23) and can adjust the pressing force of the pressing member (23) on the frame (31) of the photovoltaic assembly (30).

9. The clamping device for testing the connection load of a photovoltaic module according to claim 8, characterized in that: The support portion (212) is provided with a plurality of third mounting holes (2121) arranged in sequence and spaced apart in a direction close to the central area of ​​the profile assembly (10); the fastener (22) can pass through any one of the third mounting holes (2121) and be locked and fixed to the frame (31) of the photovoltaic assembly (30), or be locked and fixed to the pressing member (23), so that the pressing member (23) is pressed against the frame (31) of the photovoltaic assembly (30).

10. A load testing device, characterized in that: The load testing equipment comprises the clamping device for testing the connection load of a photovoltaic module according to any one of claims 1 to 9.

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