Measuring tool for judging quality of photovoltaic module
By designing a transparent measurement tool including multiple measurement areas, the problem of difficult to intuitively compare, time-consuming and error-prone photovoltaic module measurement tools in the prior art is solved, and rapid and accurate measurement of multiple sizes, areas and proportions is achieved, and detection efficiency and accuracy are improved.
Patent Information
- Application Number
- CN202421576750.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-05
AI Technical Summary
In the prior art, the use of steel plate rulers to measure the size and area of photovoltaic modules has problems such as difficult to intuitively compare, time-consuming and labor-intensive, and error-prone.
A transparent material measurement tool is designed, including a length and width measurement area, an area ratio measurement area and an area measurement area. Through multiple measurement strips of preset width and length, area standard blocks and area measurement areas of different shapes, rapid measurement of multiple sizes, areas and proportions is achieved.
This measurement tool can facilitate comparison and judgment, improve detection efficiency, reduce human errors, and enhance the intuitiveness and accuracy of measurement through the design of transparent materials.
Smart Images
Figure CN222689059U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automation, and in particular relates to a measuring tool for determining the quality of a photovoltaic component. Background Art
[0002] Photovoltaic modules are solar panels that are encapsulated by melting EVA under heat. Appearance inspection and EL inspection are essential to ensure the quality of the modules and improve the overall performance of the photovoltaic system. Appearance inspection can detect various defects in the production process of photovoltaic modules, such as cracks, breakage, contamination, cable connection problems, etc. These defects may reduce the durability and power generation of the modules. EL testing can reveal microscopic defects inside photovoltaic modules, such as cracks, hot spots, cell breakage, welding problems, etc. The above defects generally require a ruler to determine the length, area, and area ratio of the defects. At the same time, many dimensional measurements are also involved in the production process of photovoltaic modules.
[0003] In the prior art, a steel ruler is usually used to measure dimensions. However, the steel ruler is hard and opaque, making it difficult to make intuitive comparisons. In addition, when it comes to inspection requirements such as area and area ratio, calculations are also required. At this time, using a steel ruler to measure and then calculate the measurement results is not only time-consuming and labor-intensive, but also prone to errors.
[0004] In view of this, it is necessary to propose a measurement tool for determining the quality of photovoltaic modules to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a measuring tool for determining the quality of a photovoltaic module, so as to solve the above-mentioned technical problems existing in the prior art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following solution: a measuring tool for determining the quality of a photovoltaic module, comprising a measuring ruler body made of a transparent material, wherein the measuring ruler body is provided with a length and width measuring area, an area ratio measuring area and an area measuring area;
[0007] The length and width measurement area includes a plurality of width measurement scale areas arranged along one side edge of the measuring ruler body, and the width measurement scale areas have gradually increasing preset width dimensions;
[0008] The area ratio measurement area includes a plurality of area standard blocks arranged in an array, and a single area standard block serves as a standard area unit and forms an integer ratio with the area of the battery cell to be measured;
[0009] The plurality of area measurement regions are used to measure the area of defect regions with different shapes, and each of the area measurement regions has a different preset area value.
[0010] Preferably, a plurality of the width measuring scale areas spaced apart from each other form a measuring bar with a preset length dimension.
[0011] Preferably, four measuring bars are provided, and the preset lengths thereof are 20 mm, 30 mm, 40 mm and 50 mm respectively.
[0012] Preferably, the area measurement area includes a first area measurement area, a second area measurement area and a third area measurement area for measuring a nearly square defect area, and the preset area values of the first area measurement area, the second area measurement area and the third area measurement area are 100 mm 2 , 100mm 2 , 900mm 2 .
[0013] Preferably, the area measurement area includes a fourth area measurement area and a fifth area measurement area for measuring a nearly circular defect area, the radii of the fourth area measurement area and the fifth area measurement area are R2 and R1 respectively, and the preset area values are πR2 respectively. 2 and πR1 2 .
[0014] Preferably, the fourth area measurement area and the fifth area measurement area are respectively arranged at two diagonal positions of the measuring ruler body.
[0015] Preferably, the area of a single area standard block is 1 / 100 of the area of the battery cell to be tested.
[0016] Preferably, the measuring ruler body is square or rectangular.
[0017] Preferably, at least one side length of the measuring ruler body is equal to the side length of the battery cell to be measured or half of the side length of the battery cell to be measured.
[0018] Preferably, a hand-held portion is integrally formed on any side of the measuring ruler body.
[0019] Compared with the measuring ruler and tools in the prior art, the utility model discloses at least the following beneficial effects:
[0020] The measuring tool of the utility model comprises a plurality of measuring areas, and can measure a plurality of sizes, areas and proportions, so as to facilitate comparison and judgment. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;
[0023] Figure 2 It is a partial schematic diagram of the length and width measurement area in the embodiment of the utility model;
[0024] Figure 3 A reference diagram of the use state of an embodiment of the utility model;
[0025] Figure 4 for Figure 3 A partial enlarged view of the middle A;
[0026] In the figure, 1. measuring tool; 2. photovoltaic module; 3. battery cell to be measured; 101. measuring ruler body; 102. measuring bar; 103. first area measurement area; 104. second area measurement area; 105. third area measurement area; 106. fourth area measurement area; 107. area ratio measurement area; 108. handheld part; 109. fifth area measurement area; 301. defect area one. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0029] Reference Figure 1As shown, the utility model provides a measuring tool for determining the quality of a photovoltaic module. The measuring tool 1 includes a measuring ruler body 101. The measuring ruler body 101 is a square with a side length of L1, or a rectangle with a length of L1 and a width of L1 / 2. It is made of a transparent deformable material, such as a transparent PET sheet. The size of the measuring ruler body 101 can be the same as the size of a conventional battery cell, or the size of a half-cell battery cell, or the size of a quarter-cell battery cell, that is, the side length L1 of the measuring ruler body 101 is equal to the side length of a conventional battery cell, or is a quarter of the side length of a conventional battery cell, for example, L1 is 156 mm, 125 mm, 210 mm, etc., which is not specifically limited here.
[0030] The measuring ruler body 101 is provided with a length and width measurement area, an area ratio measurement area 107 and a plurality of area measurement areas; specifically, in this embodiment, the length and width measurement area includes a plurality of measurement bars 102 of preset width and preset length, and the plurality of measurement bars 102 are sequentially arranged along one edge of the measuring ruler body 101, such as Figure 2 As shown, in this embodiment, the length and width measurement area specifically includes width measurement scale areas with widths of 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, and 10mm, respectively, and the width measurement scale areas with widths of 2mm, 4mm, 6mm, and 8mm are marked with edge lines to form measurement bars 102 with lengths of 20mm, 30mm, 40mm, and 50mm, respectively. The width measurement scale area with a width of 10mm is directly set at the edge of the first area measurement area 103, and the measurement bars 102 with lengths of 20mm, 30mm, 40mm, and 50mm are spaced 3mm, 5mm, and 7mm apart, respectively, and the measurement bar 102 with a length of 50mm is spaced 9mm apart from the first area measurement area 103. Specifically, Figure 2 shown.
[0031] In actual inspection work, product standards stipulate many requirements that defect size ≤ standard value. This design cleverly sets length readings ranging from 2mm-9mm, and designs measuring bars 102 with lengths of 20mm, 30mm, 40mm, and 50mm respectively. The measuring bars 102 can measure the defect length intuitively and quickly without the need to use a ruler to read the length.
[0032] Further optimization scheme, the area measurement area has an area comparison range of a preset area value, such as 100mm 2 , 200mm 2 , 500mm 2 , 1000mm 2Etc., specifically, in this embodiment, the area measurement area includes a first area measurement area 103, a second area measurement area 104 and a third area measurement area 105 for measuring a nearly square defect area, and a fourth area measurement area 106 and a fifth area measurement area 109 for measuring a nearly circular defect area.
[0033] like Figure 1 As shown, in this embodiment, the first area measurement region 103, the second area measurement region 104, and the third area measurement region 105 are all quadrilateral regions, preferably square regions.
[0034] like Figure 1 As shown, in this embodiment, the fourth area measurement area 106 and the fifth area measurement area 109 are both circular areas, and the fourth area measurement area 106 and the fifth area measurement area 109 are respectively arranged at two diagonal positions of the measuring ruler body 101 .
[0035] In a possible specific embodiment, the first area measurement region 103 is a square region with a side length of 10 mm, that is, the area of the first area measurement region 103 is 100 mm. 2 .
[0036] In a possible specific embodiment, the second area measurement region 104 is a square region with a side length of 20 mm, that is, the area of the second area measurement region 104 is 400 mm. 2 .
[0037] In a possible specific embodiment, the third area measurement area 105 is a square area with a side length of 30 mm, that is, the area of the third area measurement area 105 is 900 mm 2 .
[0038] In a possible specific embodiment, the fourth area measurement area 106 is a circular area with a radius of R2, and its area is S, S=πR2 2 .
[0039] In a possible specific embodiment, the fifth area measurement area 109 is a circular area with a radius of R1, and its area is S, S=πR1 2 .
[0040] It should be understood that area measurement regions of different sizes may be set according to actual usage requirements, and that multiple area measurement regions of higher usage frequency may be set according to the frequency of measurement.
[0041] A further optimized solution is that the area ratio measurement area 107 includes a plurality of area standard blocks arranged in an array, for example, 3×3, 4×4, and 5×5 arrangements, wherein a single area standard block serves as a standard area unit and is in a certain proportion to the area of the entire battery cell 3 to be tested. By directly measuring the coverage area of the defective area, the percentage of the battery cell area occupied by the defective area can be directly obtained without measuring the length and width of the defective area, and then calculating the area, and then obtaining the area ratio, which can greatly improve the detection efficiency.
[0042] According to a further optimization scheme, the area ratio measurement region 107 accounts for one fourth of the area of the entire measuring ruler body 101 , and is preferably arranged at a corner position of the measuring ruler body 101 .
[0043] In a further optimization scheme, the area occupied by a single area standard block in the area ratio measurement area 107 is 1% of the entire measuring ruler body 101, that is, the area of a single area standard block is L1 2 When the size of the measuring ruler body 101 and the conventional battery cell are the same, the area of a single area standard block is 1 / 100 of the area of a conventional battery cell, that is, the area ratio of a single area standard block is 1 / 100.
[0044] As a further optimization, a hand-held portion 108 is integrally formed on any side of the measuring ruler body 101 to facilitate hand-held operation by inspection personnel.
[0045] In a possible specific embodiment, Figure 3 As shown, the size of the measuring ruler body 101 is the same as the size of the solar cell 3 to be tested in the photovoltaic module 2, both of which are squares with a side length of L1. At this time, the photovoltaic module 2 is tested by the measuring tool 1 of this embodiment, and the approximate area of the defect area 301 can be quickly measured to be 100mm 2 , such as Figure 4 shown.
[0046] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.
[0047] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do 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 should not be understood as a limitation on the present invention.
[0048] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.
Claims
1. A measuring tool for determining the quality of a photovoltaic module, characterized in that: The measuring ruler body (101) comprises a transparent material, wherein the measuring ruler body (101) is provided with a length and width measurement area, an area ratio measurement area (107) and an area measurement area; The length and width measurement area comprises a plurality of width measurement scale areas arranged along one side edge of the measuring ruler body (101), and the width measurement scale areas have preset width sizes that gradually increase; The area ratio measurement region (107) comprises a plurality of area standard blocks arranged in an array, wherein a single area standard block serves as a standard area unit and forms an integer ratio with the area of the battery cell (3) to be measured; The plurality of area measurement regions are used to measure the area of defect regions with different shapes, and each of the area measurement regions has a different preset area value.
2. The photovoltaic module quality determination measuring tool according to claim 1, characterized in that: A plurality of the width measuring scale areas spaced apart from each other form a measuring bar (102) having a preset length dimension.
3. The photovoltaic module quality determination measuring tool according to claim 2, characterized in that: The measuring bars (102) are provided with four bars, and the preset lengths thereof are 20 mm, 30 mm, 40 mm and 50 mm respectively.
4. The photovoltaic module quality determination measuring tool according to claim 1, characterized in that: The area measurement area comprises a first area measurement area (103), a second area measurement area (104) and a third area measurement area (105) for measuring a nearly square defect area, wherein the preset area values of the first area measurement area (103), the second area measurement area (104) and the third area measurement area (105) are 100 mm 2 , 100mm 2 , 900mm 2 .
5. The photovoltaic module quality determination measuring tool according to claim 1, characterized in that: The area measurement area comprises a fourth area measurement area (106) and a fifth area measurement area (109) for measuring a nearly circular defect area, wherein the radii of the fourth area measurement area (106) and the fifth area measurement area (109) are respectively R2 and R1, and the preset area values are respectively πR2 2 and πR1 2 .
6. The photovoltaic module quality determination measuring tool according to claim 5, characterized in that: The fourth area measurement area (106) and the fifth area measurement area (109) are respectively arranged at two diagonal positions of the measuring ruler body (101).
7. The photovoltaic module quality determination measuring tool according to claim 1, characterized in that: The area of a single area standard block is 1 / 100 of the area of the battery cell (3) to be tested.
8. The photovoltaic module quality determination measuring tool according to claim 1, characterized in that: The measuring ruler body (101) is square or rectangular.
9. The photovoltaic module quality determination measuring tool according to claim 8, characterized in that: At least one side length of the measuring ruler body (101) is equal to the side length of the battery cell (3) to be measured or half the side length of the battery cell (3) to be measured.
10. The photovoltaic module quality determination measuring tool according to claim 1, characterized in that: A hand-held portion (108) is integrally formed on any one side of the measuring ruler body (101).