A detection device for a photovoltaic film assembly

Abstract

The utility model provides a kind of photovoltaic film kit detection device, the detection device includes detection grid, detection grid includes multiple first grid lines and multiple second grid lines, multiple first grid lines and multiple second grid lines are crossed and form multiple standard grids, to utilize each standard grid, after photovoltaic film kit is aligned with standard grid, whether the film on photovoltaic film kit is aligned standard grid according to each standard grid, whether the film is judged to deviate standard position. Each first grid line can be moved along second direction, to adjust the interval of adjacent two first grid lines in second direction, each second grid line can be moved along first direction, to adjust the interval of adjacent two second grid lines in first direction. The utility model realizes the size of standard grid is flexibly adjusted, to match with arbitrary specification film, improve the versatility of detection device. Meanwhile, whether the film position meets demand is avoided by artificial measurement, improve detection efficiency and detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of solar cell technology, and in particular to a testing device for photovoltaic film modules. Background Technology

[0002] Reflective film technology is becoming increasingly common in photovoltaic (PV) modules. This reflective film is applied between cell strings or between individual cells. During PV module production, reflective film is placed between the cells to reflect light back onto the cells, improving the module's durability and power generation efficiency. The precision of the film application directly affects the quality and performance of the PV module. Misalignment, air bubbles, or loose adhesion can lead to power degradation or even module failure.

[0003] Currently, the accuracy of manual re-applying film on photovoltaic modules mainly relies on manual visual inspection or fixed-structure inspection equipment. Manual inspection is inefficient and highly subjective, making it difficult to meet the needs of large-scale production; while fixed-structure inspection equipment cannot adapt to changes in string spacing and cell spacing of photovoltaic modules of different specifications, resulting in poor versatility.

[0004] Therefore, there is an urgent need for a high-precision detection device that can flexibly adjust the string spacing and chip spacing. Utility Model Content

[0005] This invention provides a testing device for photovoltaic film modules, which allows for flexible adjustment of the size of the standard grid to match any size of film, thus improving the versatility of the testing device.

[0006] This utility model provides a detection device for photovoltaic film-coated modules, including a detection grid;

[0007] The detection grid includes multiple first grid lines and multiple second grid lines. The multiple first grid lines extend along a first direction, and the multiple second grid lines extend along a second direction. The multiple first grid lines and the multiple second grid lines intersect to form multiple standard grids. By utilizing each of the standard grids, after aligning the photovoltaic film assembly with the standard grids, it is determined whether the film on the photovoltaic film assembly deviates from the standard position based on whether each film on the photovoltaic film assembly is aligned with the standard grid.

[0008] Each of the first grid lines can move along the second direction to adjust the spacing between two adjacent first grid lines in the second direction;

[0009] Each of the second grid lines can move along the first direction to adjust the spacing between two adjacent second grid lines in the first direction;

[0010] Wherein, the first direction and the second direction are perpendicular.

[0011] Optionally, it also includes a substrate, on which the detection grid is located.

[0012] Optionally, the first grid line and the second grid line are metal wires or plastic wires.

[0013] Optionally, it may also include a plurality of first marking devices and a plurality of second marking devices;

[0014] The two ends of the first grid line are respectively fixed to both sides of the substrate in the first direction by the first marking device;

[0015] The two ends of the second grid line are respectively fixed on both sides of the substrate in the second direction by the second marking device.

[0016] Optionally, it also includes a plurality of first laser emitters and a plurality of second laser emitters;

[0017] The plurality of first laser emitters are all fixed on the first side of the substrate in the first direction;

[0018] The plurality of second laser emitters are all fixed on the first side of the substrate in the second direction.

[0019] Optionally, it may also include a plurality of first receivers and a plurality of second receivers;

[0020] The plurality of first receivers are all fixed on the second side of the substrate in the first direction, and are arranged in a one-to-one correspondence with the plurality of first laser emitters;

[0021] The plurality of second receivers are all fixed on the second side of the substrate in the second direction, and are arranged in a one-to-one correspondence with the plurality of second laser emitters.

[0022] Optionally, the edge of the substrate is provided with scale lines.

[0023] Optionally, the substrate is rectangular, with the long side of the substrate being greater than or equal to 2500 mm and the short side of the substrate being greater than or equal to 1400 mm.

[0024] Optionally, the substrate is a transparent substrate.

[0025] Optionally, the first grid line has 5 lines, and the second grid line has 14 to 24 lines.

[0026] The photovoltaic film module testing device provided by this utility model, by setting multiple standard grids formed by the intersection of a first grid line and a second grid line on the testing device, and by moving the first grid line and the second grid line in a second direction and a first direction, achieves flexible adjustment of the size of the standard grid, thus matching any size film and improving the versatility of the testing device. At the same time, it avoids manually measuring whether each film position meets the requirements; it only needs to check whether the edge of each film in the photovoltaic film module coincides with the first grid line and the second grid line, improving testing efficiency and accuracy.

[0027] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the structure of a testing device for a photovoltaic film-coated module provided in an embodiment of this utility model;

[0030] Figure 2 A schematic diagram of the structure of another photovoltaic film-coated module detection device provided in an embodiment of this utility model;

[0031] Figure 3 A schematic diagram of the structure of another photovoltaic film module testing device provided in this embodiment of the present utility model. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] Figure 1 This is a schematic diagram of the structure of a testing device for a photovoltaic film module provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the detection device includes a detection grid 10, which comprises multiple first grid lines 101 and multiple second grid lines 102. The multiple first grid lines 101 extend along a first direction (x-direction), and the multiple second grid lines 102 extend along a second direction (y-direction). The multiple first grid lines 101 and multiple second grid lines 102 intersect to form multiple standard grids 103. Using each standard grid 103, after aligning the photovoltaic film assembly with the standard grids 103, the device determines whether the film on the photovoltaic film assembly deviates from the standard position based on whether each film on the photovoltaic film assembly is aligned with the standard grid 103. Each first grid line 101 can move along the second direction (y-direction) to adjust the spacing between two adjacent first grid lines 101 in the second direction (y-direction). Each second grid line 102 can move along the first direction (x-direction) to adjust the spacing between two adjacent second grid lines 102 in the first direction (x-direction). The first direction (x-direction) and the second direction (y-direction) are perpendicular.

[0035] Specifically, refer to Figure 1 The detection device includes a detection grid 10, which is composed of multiple standard grids 103. Each standard grid 103 is formed by the intersection of multiple first grid lines 101 and multiple second grid lines 102. The multiple first grid lines 101 extend along a first direction (x-direction), and the multiple second grid lines 102 extend along a second direction (y-direction). In an optional embodiment, there are 5 first grid lines 101 and 14 to 24 second grid lines 102. In actual use, the number of first grid lines 101 and second grid lines 102 can be increased or decreased according to detection needs.

[0036] Furthermore, after the photovoltaic film-mounted module is fitted with the film at the predetermined positions, a detection device can be used to check the film-mounted position. Specifically, any one film in the photovoltaic film-mounted module can be aligned with the corresponding standard grid 103 in the detection device, and then the alignment of the remaining films in the photovoltaic film-mounted module with the standard grid 103 can be checked to determine whether the films deviate from the standard position. By using this detection device, it is only necessary to observe whether the edge of each film in the photovoltaic film-mounted module coincides with the first grid line 101 and the second grid line 102 to determine whether the position of each film meets the requirements of the cell string spacing and cell spacing, avoiding the need for manual measurement of whether the position of each film meets the requirements.

[0037] In addition, refer to Figure 1 To meet the requirements of different photovoltaic film-mounted modules in terms of cell string spacing and cell spacing, each of the first grid lines 101 of this detection device can move along the second direction (y-direction) to adjust the spacing between two adjacent first grid lines 101 in the second direction (y-direction). Each of the second grid lines 102 can move along the first direction (x-direction) to adjust the spacing between two adjacent second grid lines 102 in the first direction (x-direction). This allows for flexible adjustment of the size of the standard grid 103, thereby achieving compatibility with films of any size.

[0038] This invention, through setting multiple standard grids formed by the intersection of first and second grid lines on the detection device, and by moving the first and second grid lines in a second and a first direction, achieves flexible adjustment of the size of the standard grids, thus matching any size of film and improving the versatility of the detection device. Simultaneously, it avoids manually measuring whether each film position meets the requirements; it only needs to check whether the edges of each film in the photovoltaic film assembly coincide with the first and second grid lines, improving detection efficiency and accuracy.

[0039] Optionally, refer to Figure 1 The detection device also includes a substrate 20, on which the detection grid 10 is located. When using the detection device to inspect the photovoltaic film assembly, the photovoltaic film assembly can be placed above or below the substrate 20. In an optional embodiment, the substrate 20 is a transparent substrate, so when the photovoltaic film assembly is placed below the substrate 20, the position of each film in the photovoltaic film assembly can be observed through the substrate 20, thereby determining whether the film deviates from the standard position. When the encapsulation material of the photovoltaic film assembly is glass, the photovoltaic film assembly can be placed above the substrate 20. At this time, the position of the standard grid 103 formed by the intersection of the first grid line 101 and the second grid line 102 can be observed through the photovoltaic film assembly, thereby also determining whether the film deviates from the standard position.

[0040] Optionally, the substrate 20 is rectangular, with the long side of the substrate 20 being greater than or equal to 2500 mm and the short side being greater than or equal to 1400 mm. The edge of the substrate 20 is provided with scale lines (not shown in the figure).

[0041] Specifically, the long and short sides of the substrate 20 should be able to cover the size of the photovoltaic film-mounted assembly, so that the detection device can detect each film-mounted position in the photovoltaic film-mounted assembly. Further, scale lines (not shown in the figure) are provided on the edge of the substrate 20 to flexibly adjust the spacing between two adjacent first grid lines 101 in the second direction (y-direction) and the spacing between two adjacent second grid lines 102 in the first direction (x-direction) according to the requirements of the cell string spacing and cell spacing of different photovoltaic film-mounted assemblies. For example, the spacing between two adjacent first grid lines 101 in the second direction (y-direction) can be 181 mm, and the spacing between two adjacent second grid lines 102 in the first direction (x-direction) can be 91 mm.

[0042] In an alternative embodiment, reference Figure 1 The first grid line 101 and the second grid line 102 are metal or plastic wires. The detection device also includes a plurality of first marking devices 30 and a plurality of second marking devices 40. The two ends of the first grid line 101 are respectively fixed to the two sides of the substrate 20 in the first direction (x direction) by the first marking devices 30, and the two ends of the second grid line 102 are respectively fixed to the two sides of the substrate 20 in the second direction (y direction) by the second marking devices 40.

[0043] Specifically, when the first grid line 101 and the second grid line 102 are metal or plastic wires, multiple first marking devices 30 and multiple second marking devices 40 can be provided in the detection device to fix the first grid line 101 to both sides of the substrate 20 in the first direction (x direction) and the second grid line 102 to both sides of the substrate 20 in the second direction (y direction). Simultaneously, by moving the first marking device 30 in the second direction (y direction), the spacing between two adjacent first grid lines 101 can be adjusted; and by moving the second marking device 40 in the first direction (x direction), the spacing between two adjacent second grid lines 102 can be adjusted. For example, the first marking device 30 and the second marking device 40 can be fasteners.

[0044] This utility model embodiment provides a plurality of first marking devices in a first direction and a plurality of second marking devices in a second direction on a substrate. The two ends of the first grid line and the second grid line are respectively fixed on the first marking device and the second marking device. This allows for adjustment of the spacing between two adjacent first grid lines and two adjacent second grid lines when the first marking device and the second marking device are moved. This improves the convenience of the detection device for adjusting the standard grid and further improves the detection efficiency.

[0045] In another alternative embodiment, Figure 2 A schematic diagram of the structure of another photovoltaic film module testing device provided in an embodiment of this utility model is shown below. Figure 2 As shown, the detection device also includes a plurality of first laser emitters 50 and a plurality of second laser emitters 60; the plurality of first laser emitters 50 are all fixed on a first side of the substrate 20 in a first direction (x direction), and the plurality of second laser emitters 60 are all fixed on a first side of the substrate 20 in a second direction (y direction).

[0046] Specifically, refer to Figure 2 When multiple first laser emitters 50 are disposed on a first side of the substrate 20 in the first direction (x direction), and multiple second laser emitters 60 are disposed on a first side of the substrate 20 in the second direction (y direction), the light emitted by the first laser emitters 50 and the second laser emitters 60 forms the first grid line 101 and the second grid line 102, and the light rays intersect on the surface of the substrate 20 to form a standard grid 103. By moving the first laser emitters 50 and the second laser emitters 60 along the second direction (y direction) and the first direction (x direction) of the substrate 20, respectively, the position of the emitted light rays can be changed, thereby adjusting the standard grid 103 and enabling matching with various photovoltaic film modules.

[0047] In yet another alternative embodiment, Figure 3 A schematic diagram of the structure of another photovoltaic film module testing device provided in this embodiment of the present invention is shown below. Figure 3 As shown, the detection device also includes a plurality of first receivers 70 and a plurality of second receivers 80. The plurality of first receivers 70 are all fixed to the second side of the substrate 20 in the first direction (x-direction) and are aligned one-to-one with the plurality of first laser emitters 50. The plurality of second receivers 80 are all fixed to the second side of the substrate 20 in the second direction (y-direction) and are aligned one-to-one with the plurality of second laser emitters 60.

[0048] Specifically, refer to Figure 3 The detection device can also be equipped with multiple first receivers 70 and multiple second receivers 80, respectively used to receive the light emitted from multiple first laser emitters 50 and multiple second laser emitters 60. For example... Figure 3As shown, multiple first receivers 70 are fixed to the second side of the substrate 20 in the first direction (x direction), and are aligned one-to-one with multiple first laser emitters 50. Multiple second receivers 80 are fixed to the second side of the substrate 20 in the second direction (y direction), and are aligned one-to-one with multiple second laser emitters 60. This achieves the formation of a detection grid 10 on the surface of the substrate 20. When changing the size of the multiple standard grids 103 in the detection grid 10, it is necessary to simultaneously move the first laser emitters 50 and the first receivers 70 in the second direction (y direction) of the substrate 20, and simultaneously move the second laser emitters 60 and the second receivers 80 in the first direction (x direction) of the substrate 20.

[0049] This embodiment of the invention simplifies the detection device by arranging multiple first laser emitters in a first direction and multiple second laser emitters in a second direction on the substrate, using the light emitted from the first and second laser emitters as the first and second grid lines in the detection device. Furthermore, first and second receivers can be respectively positioned at positions corresponding to the first and second laser emitters to receive the light emitted from them, thus improving the safety of the detection device.

[0050] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A testing device for photovoltaic film-coated modules, characterized in that, Including grid detection; The detection grid includes multiple first grid lines and multiple second grid lines. The multiple first grid lines extend along a first direction, and the multiple second grid lines extend along a second direction. The multiple first grid lines and the multiple second grid lines intersect to form multiple standard grids. By utilizing each of the standard grids, after aligning the photovoltaic film assembly with the standard grids, it is determined whether the film on the photovoltaic film assembly deviates from the standard position based on whether each film on the photovoltaic film assembly is aligned with the standard grid. Each of the first grid lines can move along the second direction to adjust the spacing between two adjacent first grid lines in the second direction; Each of the second grid lines can move along the first direction to adjust the spacing between two adjacent second grid lines in the first direction; Wherein, the first direction and the second direction are perpendicular.

2. The detection device according to claim 1, characterized in that, It also includes a substrate, on which the detection grid is located.

3. The detection device according to claim 2, characterized in that, The first grid line and the second grid line are metal wires or plastic wires.

4. The detection device according to claim 3, characterized in that, It also includes multiple first marking devices and multiple second marking devices; The two ends of the first grid line are respectively fixed to both sides of the substrate in the first direction by the first marking device; The two ends of the second grid line are respectively fixed on both sides of the substrate in the second direction by the second marking device.

5. The detection device according to claim 2, characterized in that, It also includes multiple first laser emitters and multiple second laser emitters; The plurality of first laser emitters are all fixed on the first side of the substrate in the first direction; The plurality of second laser emitters are all fixed on the first side of the substrate in the second direction.

6. The detection device according to claim 5, characterized in that, It also includes multiple first receivers and multiple second receivers; The plurality of first receivers are all fixed on the second side of the substrate in the first direction, and are arranged in a one-to-one correspondence with the plurality of first laser emitters; The plurality of second receivers are all fixed on the second side of the substrate in the second direction, and are arranged in a one-to-one correspondence with the plurality of second laser emitters.

7. The detection device according to claim 2, characterized in that, The substrate has scale lines on its edge.

8. The detection device according to claim 2, characterized in that, The substrate is rectangular, with the long side of the substrate being greater than or equal to 2500 mm and the short side of the substrate being greater than or equal to 1400 mm.

9. The detection device according to claim 2, characterized in that, The substrate is a transparent substrate.

10. The detection device according to claim 1, characterized in that, The first grid line has 5 lines, and the second grid line has 14 to 24 lines.

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