Fixing device for photovoltaic module testing

Abstract

The application relates to a fixing device for photovoltaic module testing, which comprises a frame body and two cross beams. The two cross beams are movably arranged on the frame body and are spaced apart along a first direction of the frame body. One of the cross beams is used for connecting one end of a photovoltaic module, and the other cross beam is used for connecting the other end of the photovoltaic module. The two ends of each cross beam are connected with an adjusting mechanism. The adjusting mechanism comprises a moving seat and a locking assembly. The moving seat is movably connected with the frame body, and the locking assembly is connected with the moving seat. The locking assembly has a locking state and an unlocking state. In the locking state, the locking assembly can lock the moving seat on the frame body to fix the position of the cross beam. In the unlocking state, the locking assembly releases the locking of the moving seat, so that the moving seat can drive the cross beam to move along the first direction relative to the frame body. The fixing device for photovoltaic module testing can more conveniently and stably fix photovoltaic modules with different sizes.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module technology, and in particular to a mounting device for testing photovoltaic modules. Background Technology

[0002] Photovoltaic modules, also known as solar panels or photovoltaic panels, are the core component of a photovoltaic power generation system. Their main function is to convert sunlight into electrical energy. To ensure that the photovoltaic modules meet the required power output specifications before leaving the factory, power testing is necessary.

[0003] When conducting power tests on photovoltaic (PV) modules, a mounting bracket is required to secure them. Current brackets typically use two crossbeams on the frame, connecting the two ends of the PV module to hold it in place. However, these brackets, with the crossbeams fixed to the frame by screws, usually only support one size of PV module. When different sizes need to be mounted, the screws must be removed with a wrench to remove the crossbeams, adjust them to the appropriate position, and then re-secured with screws. This adjustment process is inconvenient, and the repeated disassembly and reassembly can easily lead to stripped screws and frame deformation, resulting in unstable PV module mounting and affecting the accuracy of the PV module test. Utility Model Content

[0004] Therefore, it is necessary to provide a fixing device for testing photovoltaic modules to address the issue of how to more conveniently and stably fix photovoltaic modules of different sizes.

[0005] In a first aspect, this application provides a fixing device for testing photovoltaic modules, including a frame and two crossbeams. The two crossbeams are movably disposed on the frame and spaced apart along a first direction of the frame (10). One of the crossbeams is used to connect one end of the photovoltaic module, and the other crossbeam is used to connect the other end of the photovoltaic module. Each end of the crossbeam is connected to an adjustment mechanism. The adjustment mechanism includes a movable seat and a locking component. The movable seat is movablely engaged with the frame, and the locking component is connected to the movable seat. The locking component has a locked state and an unlocked state. In the locked state, the locking component can lock the movable seat onto the frame to fix the position of the crossbeam. In the unlocked state, the locking component releases the lock on the movable seat so that the movable seat can drive the crossbeam to move relative to the frame along the first direction.

[0006] The technical solution will be further explained below:

[0007] In one embodiment, the movable seat is connected to the crossbeam, and the locking assembly includes;

[0008] A pressure block is disposed on the side of the movable seat near the frame.

[0009] A first threaded component is threadedly connected to the movable seat and to the abutment block. The first threaded component is used to drive the abutment block to abut against the frame to cause the locking assembly to enter the locked state; and to drive the abutment block to separate from the frame to cause the locking assembly to enter the unlocked state.

[0010] In one embodiment, the frame is provided with a first sliding groove that extends along the first direction. The movable seat moves and engages with the first sliding groove. The pressing block is disposed in the first sliding groove. In the locked state, the pressing block abuts against the bottom of the first sliding groove. In the unlocked state, the pressing block separates from the bottom of the first sliding groove.

[0011] In one embodiment, the locking component includes;

[0012] A support plate is connected to the crossbeam, and a connecting column is slidably inserted through the support plate;

[0013] A retaining plate, which is connected to the movable seat and to one end of the connecting column;

[0014] A pull plate is provided on the side of the support plate opposite to the abutment plate and connected to the other end of the connecting column;

[0015] An elastic element is disposed between the pull plate and the support plate and connects the pull plate and the support plate. The elastic element is used to provide a pulling force to the pull plate from the pull plate toward the abutment plate.

[0016] In one embodiment, a pull ring is connected to the side of the pull plate away from the support plate, and the pull ring is used to drive the pull plate to move away from the support plate.

[0017] In one embodiment, a plurality of elastic elements are provided between the pull plate and the support plate.

[0018] In one embodiment, the locking assembly further includes an elastic telescopic sleeve that is fitted over the elastic member and connects the pull plate to the support plate.

[0019] In one embodiment, both crossbeams are provided with front support components for contacting the front of the photovoltaic module; both crossbeams are also provided with rear support components for contacting the back of the photovoltaic module.

[0020] In one embodiment, one of the front support assembly and the rear support assembly includes a first baffle protruding from the side of the crossbeam near the other crossbeam; the other includes:

[0021] A connecting seat, which is connected to the crossbeam;

[0022] A hinged base, which is connected to the connecting base.

[0023] A linkage assembly is rotatably connected to the hinge seat, and a second baffle is connected to the linkage assembly. The linkage assembly is used to drive the second baffle to abut or separate from the back of the photovoltaic module.

[0024] In one embodiment, the linkage assembly includes:

[0025] A connecting rod, which is rotatably connected to the hinge seat;

[0026] A slider, which is slidably connected to the connecting rod;

[0027] A threaded rod, which passes through the slider and is connected to the second baffle;

[0028] A locking nut is threadedly connected to the threaded rod. The locking nut is used to abut against the side of the slider opposite to the connecting rod to lock the slider onto the connecting rod.

[0029] The aforementioned photovoltaic module testing fixing device uses two spaced crossbeams on a frame, each connecting one end of a photovoltaic module to the other for testing. Simultaneously, an adjustment mechanism is connected to each end of the crossbeams. When fixing photovoltaic modules of different sizes, simply switch the locking mechanism to the unlocked state, then move the movable base along the first direction of the frame. This moves the crossbeams synchronously, adjusting the spacing between the two crossbeams to accommodate different module sizes, thus improving applicability. After the crossbeams are in the appropriate position, switching the locking mechanism to the locked state locks the movable base onto the frame, fixing the crossbeam position. Compared to traditional methods that require repeated disassembly and reassembly of the crossbeams using external tools, this photovoltaic module testing fixing device uses the movable base to move the crossbeams, and then locks the movable base with the locking mechanism to adjust the crossbeam position. This adjustment process is more convenient and labor-saving, and provides a more stable fixing effect for the photovoltaic modules, ensuring the accuracy of photovoltaic module testing. Attached Figure Description

[0030] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0033] Figure 1 This is a schematic diagram of the structure of a photovoltaic module testing fixture according to an embodiment.

[0034] Figure 2 for Figure 1 The diagram shows the structural schematic of the adjustment mechanism of the fixing device for testing photovoltaic modules.

[0035] Figure 3 This is a schematic diagram of the structure of a photovoltaic module testing fixture according to another embodiment.

[0036] Figure 4 for Figure 2 The diagram shows the structural schematic of the adjustment mechanism of the fixing device for testing photovoltaic modules.

[0037] Figure 5 for Figure 4 The cross-sectional view of the adjustment mechanism shown.

[0038] Figure 6 This is a schematic diagram of the structure of a rear support component according to one embodiment.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10. Frame; 20. Crossbeam; 30. Adjustment mechanism; 31. Moving seat; 32. Locking assembly; 321. First threaded component; 322. Pressing block; 323. Support plate; 324. Pressing plate; 325. Pull plate; 326. Connecting column; 327. Elastic component; 328. Pull ring; 329. Elastic telescopic sleeve; 41. Front support assembly; 42. Rear support assembly; 421. Connecting seat; 422. Hinge seat; 423. Linkage assembly; 4231. Linkage rod; 4232. Threaded rod; 4233. Locking nut; 4234. Slider; 424. Second baffle; 50. Photovoltaic module. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.

[0047] See Figure 1 , Figure 1 A photovoltaic module testing fixing device according to an embodiment of this application is shown. Specifically, the photovoltaic module testing fixing device of one embodiment includes a frame 10 and two crossbeams 20. The two crossbeams 20 are movably disposed on the frame 10 and spaced apart along a first direction of the frame 10. One crossbeam 20 is used to connect one end of a photovoltaic module 50, and the other crossbeam 20 is used to connect the other end of the photovoltaic module 50. Each end of the crossbeam 20 is connected to an adjustment mechanism 30. The adjustment mechanism 30 includes a movable seat 31 and a locking component 32. The movable seat 31 is movably engaged with the frame 10, and the locking component 32 is connected to the movable seat 31. The locking component 32 has a locked state and an unlocked state. In the locked state, the locking component 32 can lock the movable seat 31 on the frame 10 to fix the position of the crossbeam 20. In the unlocked state, the locking component 32 releases the lock on the movable seat 31, so that the movable seat 31 can drive the crossbeam 20 to move relative to the frame 10 along the first direction. Specifically, the first direction is the direction of arrow X shown in Figure 1. For example, in one embodiment, the first direction is perpendicular to the extension direction of the crossbeam 20.

[0048] The aforementioned photovoltaic module testing fixing device uses two spaced crossbeams 20 on the frame 10, with each crossbeam 20 connecting to one end of a photovoltaic module 50 for testing. Simultaneously, by connecting an adjustment mechanism 30 to each end of the crossbeams 20, when fixing photovoltaic modules 50 of different sizes, simply switch the locking component 32 to the unlocked state, then move the movable base 31 along the first direction of the frame 10. This causes the crossbeams 20 to move synchronously, adjusting the spacing between the two crossbeams 20 to accommodate different sizes of photovoltaic modules 50, thus improving applicability. After the crossbeams 20 have moved to the appropriate position, switching the locking component 32 to the locked state locks the movable base 31 onto the frame 10, thus fixing the position of the crossbeams 20. Compared to the traditional adjustment method that requires repeated disassembly and reassembly of the crossbeam 20 with the help of external tools, the photovoltaic module testing fixing device of this application uses the moving seat 31 to drive the crossbeam 20 to move, and then locks the moving seat 31 with the locking component 32 to realize the adjustment of the position of the crossbeam 20. The adjustment process is more convenient and labor-saving, and the fixing effect on the photovoltaic module 50 is more stable, thereby ensuring the accuracy of the test of the photovoltaic module 50.

[0049] For example, in one embodiment, the frame 10 is a rectangular frame structure, with two crossbeams 20 arranged in the frame. The crossbeams 20 are parallel to the short side of the frame, and the two ends of the crossbeams 20 are slidably connected to the two long sides of the frame 10.

[0050] See Figure 2 Optionally, in one embodiment, the movable seat 31 is connected to the crossbeam 20, and the locking component 32 includes a pressing block 322 and a first threaded member 321. The pressing block 322 is disposed on the side of the movable seat 31 near the frame 10. The first threaded member 321 is threadedly connected to the movable seat 31 and connected to the pressing block 322. The first threaded member 321 is used to drive the pressing block 322 to abut against the frame 10 so that the locking component 32 enters a locked state; or it is used to drive the pressing block 322 to separate from the frame 10 so that the locking component 32 enters an unlocked state. Exemplarily, by tightening the first threaded member 321, the pressing block 322 can be driven to move away from the movable seat 31, so that the pressing block 322 presses against the frame 10, and the movable seat 31 can be locked onto the frame 10 by utilizing the friction between the pressing block 322 and the frame 10. By loosening the first threaded part 321, the pressing block 322 can be driven to move closer to the moving seat 31, thereby separating the pressing block 322 from the frame 10. At this time, the locking of the moving seat 31 can be released, and the crossbeam 20 can be moved by driving the moving seat 31 to move along the frame 10.

[0051] Optionally, in one embodiment, the frame 10 has a first sliding groove (not shown) extending in a first direction. The movable seat 31 moves and engages with the first sliding groove. A pressing block 322 is disposed in the first sliding groove. In the locked state, the pressing block 322 abuts against the bottom of the first sliding groove. In the unlocked state, the pressing block 322 separates from the bottom of the first sliding groove. By moving and engaging the movable seat 31 with the first sliding groove, the stability of the movable seat 31's movement can be improved. By hiding the pressing block 322 in the first sliding groove, the pressing block 322 can be prevented from affecting the flatness of the connection between the movable seat 31 and the frame 10.

[0052] See Figures 3 to 5 In another embodiment, the locking assembly 32 includes a support plate 323, a clamping plate 324, a pull plate 325, and an elastic element 327. The support plate 323 is connected to the crossbeam 20, and a connecting post 326 is slidably mounted on the support plate 323. The clamping plate 324 is connected to the movable seat 31 and to one end of the connecting post 326. The pull plate 325 is disposed on the side of the support plate 323 opposite to the clamping plate 324 and connected to the other end of the connecting post 326. The elastic element 327 is disposed between the pull plate 325 and the support plate 323, connecting the pull plate 325 and the support plate 323. The elastic element 327 provides a pulling force to the pull plate 325, directing it towards the clamping plate 324. Specifically, in the locked state, the elastic element 327 provides a pulling force to the pull plate 325, pointing from the pull plate 325 towards the abutment plate 324. This pulling force is transmitted to the abutment plate 324 through the connecting column 326, thus pressing the movable seat 31 against the frame 10. When it is necessary to adjust the position of the crossbeam 20, simply pull the pull plate 325 away from the support plate 323. This will cause the abutment plate 324 and the movable seat 31 to move away from the frame 10, allowing the movable seat 31 to move along the frame 10 to adjust the position of the crossbeam 20. After the crossbeam 20 is adjusted to the appropriate position, the pull plate 325 is released, and the abutment plate 324, under the elastic force of the elastic element 327, presses the movable seat 31 again, thereby locking the movable seat 31.

[0053] See Figure 5 A pull ring 328 is connected to the side of the pull plate 325 away from the support plate 323. The pull ring 328 is used to move the pull plate 325 away from the support plate 323. The pull ring 328 makes it easier to pull the pull plate 325.

[0054] See Figure 5 Multiple elastic elements 327 are provided between the pull plate 325 and the support plate 323. This provides greater tension to the pull plate 325, ensuring that the pressing plate can more stably press the movable seat 31, and ensuring that the movable seat 31 is firmly locked onto the frame 10. For example, the elastic elements 327 can be springs.

[0055] See Figure 5In one embodiment, the locking component 32 further includes an elastic telescopic sleeve 329, which is fitted over the elastic element 327 and connects the pull plate 325 and the support plate 323. The elastic telescopic sleeve 329 can protect the elastic element from contamination and corrosion, and at the same time, it can shield the elastic element 327, making the overall appearance of the photovoltaic module testing fixing device cleaner and more aesthetically pleasing.

[0056] See Figure 1 In one embodiment, both crossbeams 20 are provided with front support components 41, which abut against the front of the photovoltaic module 50; both crossbeams 20 are also provided with rear support components 42, which abut against the back of the photovoltaic module 50. By limiting the photovoltaic module 50 from both sides through the front support components 41 and the rear support components 42, the photovoltaic module 50 can be fixed to the crossbeams 20.

[0057] In one embodiment, the front support assembly 41 includes a first baffle that protrudes from the side of the crossbeam 20 near the other crossbeam 20. See also Figure 6 The rear support assembly 42 includes a connecting seat 421, a hinge seat 422, a connecting rod assembly 423, and a second baffle 424. The connecting seat 421 is connected to the crossbeam 20, the hinge seat 422 is connected to the connecting seat 421, the connecting rod assembly 423 is rotatably connected to the hinge seat 422, and the second baffle 424 is connected to the connecting rod assembly 423. The connecting rod assembly 423 is used to drive the second baffle 424 to abut or separate from the back of the photovoltaic module 50.

[0058] Specifically, by driving the linkage assembly 423 to rotate relative to the hinge seat 422, the second baffle 424 can be moved between a position abutting against the back of the photovoltaic module 50 and a position avoiding the photovoltaic module 50. Thus, when installing the photovoltaic module 50, first, the linkage assembly 423 rotates the second baffle 424 to a position avoiding the photovoltaic module 50. After placing the photovoltaic module 50 between the two crossbeams 20, the linkage assembly 423 rotates the second baffle 424 again to abut against the back of the photovoltaic module 50, thereby fixing the photovoltaic module 50. Similarly, when it is necessary to remove the photovoltaic module 50, the linkage assembly 423 rotates the second baffle 424 to a position avoiding the photovoltaic module 50, allowing the photovoltaic module 50 to be removed.

[0059] See Figure 6In one embodiment, the linkage assembly 423 includes a linkage 4231, a slider 4234, a threaded rod 4232, and a locking nut 4233. The linkage 4231 is rotatably connected to the hinge seat 422, the slider 4234 is slidably connected to the linkage 4231, the threaded rod 4232 passes through the slider 4234 and is connected to the second baffle 424, and the locking nut 4233 is threadedly connected to the threaded rod 4232. The locking nut 4233 abuts against the side of the slider 4234 away from the linkage 4231 to lock the slider 4234 onto the linkage 4231. Specifically, by driving the slider 4234 to move along the linkage 4231, the position of the second baffle 424 in the height direction of the photovoltaic module 50 can be adjusted. By rotating the threaded rod 4232, the position of the second baffle 424 in the thickness direction of the photovoltaic module 50 can be adjusted, thereby enabling the second baffle 424 to stably abut against photovoltaic modules 50 of different sizes, improving adaptability.

[0060] It is worth noting that in other embodiments, the front support component 41 can also be configured with the same structure as the rear support component 42 in the above embodiment, in which case the rear support component 42 can be configured as a first baffle.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and 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 those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fixing device for testing photovoltaic modules, characterized in that, The device includes a frame (10) and two crossbeams (20). The two crossbeams (20) are movably mounted on the frame (10) and spaced apart along a first direction of the frame (10). One crossbeam (20) is used to connect one end of a photovoltaic module (50), and the other crossbeam (20) is used to connect the other end of the photovoltaic module (50). Each end of the crossbeam (20) is connected to an adjustment mechanism (30). The adjustment mechanism (30) includes a movable base (31) and a locking component (32). The movable base (31) is connected to the... The frame (10) is movable and engaged. The locking component (32) is connected to the movable seat (31). The locking component (32) has a locked state and an unlocked state. In the locked state, the locking component (32) can lock the movable seat (31) on the frame (10) to fix the position of the crossbeam (20). In the unlocked state, the locking component (32) releases the lock on the movable seat (31) so that the movable seat (31) can drive the crossbeam (20) to move relative to the frame (10) in the first direction.

2. The fixing device for testing photovoltaic modules according to claim 1, characterized in that, The movable seat (31) is connected to the crossbeam (20), and the locking assembly (32) includes; A pressure block (322) is disposed on the side of the movable seat (31) near the frame (10); The first threaded component (321) is threadedly connected to the movable seat (31) and connected to the pressing block (322). The first threaded component (321) is used to drive the pressing block (322) to abut against the frame (10) so that the locking component (32) enters the locked state; or it is used to drive the pressing block (322) to separate from the frame (10) so that the locking component (32) enters the unlocked state.

3. The fixing device for testing photovoltaic modules according to claim 2, characterized in that, The frame (10) has a first sliding groove that extends along the first direction. The movable seat (31) moves and cooperates with the first sliding groove. The pressing block (322) is disposed in the first sliding groove. In the locked state, the pressing block (322) abuts against the bottom of the first sliding groove. In the unlocked state, the pressing block (322) separates from the bottom of the first sliding groove.

4. The fixing device for testing photovoltaic modules according to claim 1, characterized in that, The locking component (32) includes; A support plate (323) is connected to the crossbeam (20), and a connecting column (326) is slidably provided on the support plate (323). A retaining plate (324) is connected to the movable seat (31) and to one end of the connecting post (326); A pull plate (325) is provided on the side of the support plate (323) away from the abutment plate (324) and connected to the other end of the connecting column (326); An elastic element (327) is disposed between the pull plate (325) and the support plate (323) and connects the pull plate (325) and the support plate (323). The elastic element (327) is used to provide a pulling force to the pull plate (325) from the pull plate (325) toward the abutment plate (324).

5. The fixing device for testing photovoltaic modules according to claim 4, characterized in that, A pull ring (328) is connected to the side of the pull plate (325) away from the support plate (323). The pull ring (328) is used to drive the pull plate (325) to move away from the support plate (323).

6. The fixing device for testing photovoltaic modules according to claim 4, characterized in that, A plurality of elastic elements (327) are provided between the pull plate (325) and the support plate (323).

7. The fixing device for testing photovoltaic modules according to claim 4, characterized in that, The locking assembly (32) further includes an elastic telescopic sleeve (329), which is sleeved on the elastic member (327) and connects the pull plate (325) and the support plate (323).

8. The fixing device for testing photovoltaic modules according to claim 1, characterized in that, Both of the crossbeams (20) are provided with a front support assembly (41), which is used to abut against the front of the photovoltaic module (50); both of the crossbeams (20) are also provided with a rear support assembly (42), which is used to abut against the back of the photovoltaic module (50).

9. The fixing device for testing photovoltaic modules according to claim 8, characterized in that, One of the front support assembly (41) and the rear support assembly (42) includes a first baffle protruding from the side of the crossbeam near the other crossbeam; the other includes: A connecting seat (421) is connected to the crossbeam (20); A hinge seat (422) is connected to the connecting seat (421). A connecting rod assembly (423) is rotatably connected to the hinge seat (422). A second baffle (424) is connected to the connecting rod assembly (423). The connecting rod assembly (423) is used to drive the second baffle (424) to abut or separate from the back of the photovoltaic module (50).

10. The fixing device for testing photovoltaic modules according to claim 9, characterized in that, The link assembly (423) includes: Linkage (4231), which is rotatably connected to the hinge seat (422); Slider (4234), the slider (4234) is slidably connected to the connecting rod (4231); A threaded rod (4232) passes through the slider (4234) and is connected to the second baffle (424); A locking nut (4233) is threadedly connected to the threaded rod (4232). The locking nut (4233) is used to abut against the side of the slider (4234) away from the connecting rod (4231) to lock the slider (4234) onto the connecting rod (4231).

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