Sample preparation tool and method for shearing experiment of silica gel for photovoltaic module
By designing silicone shear sample preparation tooling for photovoltaic modules, the problem of inaccurate size and thickness control during the sample preparation process of silicone sample is solved, the high-precision preparation and accuracy of the sample data is achieved, and the sample processing process is simplified .
Patent Information
- Application Number
- CN202310763256.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-26
- Publication Date
- 2024-12-27
AI Technical Summary
During the shear test sample preparation process of existing photovoltaic modules, the size and thickness control are inaccurate, resulting in insufficient accuracy and stability of the bonding area, affecting the accuracy of the test data.
A sample preparation tool including upper and lower modules is designed. Through control panels, spacers, limit baffles and shrapnels, the thickness and length uniformity of the silicone sample is ensured, and the sample preparation method is provided to facilitate the sample. Production and follow-up processing.
It improves the accuracy and standardization of sample preparation, ensures the consistency of thickness and dimensionality of silicone samples, facilitates subsequent testing, and simplifies the sample removal and cleaning process.
Smart Images
Figure CN119198231A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of photovoltaic solar energy industry testing, and in particular relates to a sample preparation tool and method for a silicone shearing experiment for photovoltaic components. Background Art
[0002] Organic silica gel for solar photovoltaic modules is a key material for fixing solar cells and ensuring the adhesion of upper and lower covers. In practical applications, photovoltaic modules are installed outdoors for a long time and need to withstand various tests of wind, rain, snow and load capacity. Therefore, the bonding and sealing performance of organic silica gel is crucial. The detection of this performance is mainly measured by shear strength. In actual detection, the length, width and thickness of the experimental sample affect the accuracy of the test results. Therefore, there are particularly strict requirements for sample preparation. The test samples must be prepared in accordance with the shear strength sample preparation requirements specified in the national standard. At present, the shear test samples of organic silica gel are mainly made by hand. The size and thickness control accuracy of the overlap area of the shear sample is not high. There is no corresponding sample preparation control tool, and the accuracy and stability of the overlap bonding area cannot be guaranteed, which affects the standardization and accuracy of sample preparation, thereby causing distortion of test data.
[0003] Therefore, improving the accuracy and standardization of silicone shearing and sample preparation and providing employees with convenient shearing and sample preparation tools are issues that need to be addressed. Summary of the invention
[0004] In view of the above problems, the present invention provides a sample preparation tool for a silicone shearing experiment for photovoltaic modules, the tool comprising an upper module and a lower module, the height of the upper module being greater than the height of the lower module;
[0005] The upper surface of the upper module is slidably connected with a control board, the upper surface of the upper module is provided with spacing lines, and a first substrate is provided between adjacent spacing lines, and the first substrate has a width of 25 mm, a length of 100 mm, and a thickness of 0.3 mm;
[0006] The lower module is provided with multiple spacer plates and multiple spring sheets, and grooves are formed between adjacent spacer plates. The width of the grooves is 25 mm, the length is 100 mm, and the depth is 0.3 mm. A second substrate is provided in the groove. The width of the second substrate is 25 mm, the length is 100 mm, and the thickness is 0.3 mm. A limit baffle is mounted on the spacer plate, and both ends of the limit baffle are connected to the lower module. A plurality of leak-proof plates are provided on the lower side wall of the limit baffle, and the width of the leak-proof plate matches the width of the groove.
[0007] Preferably, both ends of the control panel are provided with connecting pieces, the lower side of the connecting piece is rotatably connected to a rotating shaft via a bearing, a roller is provided on the rotating shaft, and sliding grooves are provided on both sides of the upper module, and the rollers are located in the corresponding sliding grooves.
[0008] Preferably, the side walls of the upper module are provided with limiting columns, and the limiting columns are located on both sides of the upper module.
[0009] Preferably, the spring pieces correspond to the grooves one by one.
[0010] Preferably, a sliding button is provided on the side of the connecting member.
[0011] Preferably, the distance between the spaced lines matches the width of the groove.
[0012] Preferably, the limit baffle is a hollow rectangular structure, bolts are passed through both ends of the limit baffle, screw holes are provided on the surface of the lower module, and the bolts extend downward into the screw holes and are threadedly connected with the screw holes.
[0013] Preferably, the size of the first substrate matches the size between adjacent spacing lines.
[0014] Preferably, the upper module and the lower module are integrally formed.
[0015] The present invention also provides a sample preparation method for a silicone shearing experiment of a photovoltaic module, the method comprising:
[0016] Lay the first substrate flat on the upper surface of the upper module, put the second substrate into the groove, and fix the limit baffle;
[0017] Inject silica gel on the second substrate, translate the first substrate onto the silica gel sample, and slide the control plate to the right to control the thickness of the silica gel sample;
[0018] After the silicone is cured, a shearing tool is used to modify the edge of the first substrate, and then a universal material testing machine is used to test the silicone sample.
[0019] Preferably, the fixed limit baffle comprises:
[0020] First loosen the bolts on both sides of the limit baffle;
[0021] Slide the limit baffle, and when one side of the limit baffle contacts the end of the limit column, tighten the bolts into the corresponding screw holes on the lower module to fix the position of the limit baffle.
[0022] Preferably, the rightward sliding control plate controls the thickness of the silica gel sample, comprising:
[0023] Slide the control board to the right, and the control board passes over the silicone sample and flattens the silicone sample until the control board contacts the upper surface of the limit baffle. After the silicone is cured, reset the control board.
[0024] Preferably, the step of translating the first substrate onto the silica gel sample comprises: moving the first substrate along the spacing line until the first substrate contacts the upper surface of the limiting baffle.
[0025] Preferably, the modifying the edge of the first substrate using a shearing tool comprises: using the shearing tool to shear the silica gel overflowing from the upper surface of the first substrate.
[0026] The present invention has the following beneficial effects:
[0027] The present invention can control the positioning of the sample during production, the size of the shear overlap area and the bonding thickness, thereby improving the accuracy of sample preparation and the requirements for sample standardization. In addition, after the experimental shear sample is solidified, it is convenient to remove the solidified sample, and ensure that the residual silica gel does not stick to the tooling surface, and is easy to clean for subsequent use.
[0028] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 A sample preparation tooling diagram for a silicone shearing experiment for photovoltaic modules according to an embodiment of the present invention is shown;
[0031] Figure 2 An assembly diagram of a limit baffle and a leak-proof plate in an embodiment of the present invention is shown;
[0032] Figure 3 A diagram showing a sample preparation method for a silicone shearing experiment for photovoltaic modules in an embodiment of the present invention;
[0033] In the figure: 1. upper module; 2. control panel; 3. limit column; 4. limit baffle; 5. lower module; 6. spring; 7. partition plate; 8. bolt; 9. groove; 10. sliding button; 11. sliding groove; 12. partition line; 13. leak-proof plate. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0035] like Figure 1 As shown, the present invention proposes a sample preparation tooling for a silicone shearing experiment for photovoltaic modules, the tooling includes an upper module 1 and a lower module 5, the height of the upper module 1 is greater than the height of the lower module 5, the upper module 1 and the lower module 5 are integrally formed, and the height difference between the upper module 1 and the lower module 5 is designed, and the thickness control is achieved by limiting the height difference, so that the substrate and the silicone overlap area are uniformly stressed during the sample preparation process, and the uneven thickness control, size control and positioning are effectively prevented, which causes the sample size and thickness deviation to be too large, resulting in distortion of the test data. In this embodiment, all parts that come into contact with the silicone are made of non-stick silicone materials such as tetrafluoroethylene.
[0036] The upper surface of the upper module 1 is slidably connected to a control board 2, and a spacing line 12 is provided on the upper surface of the upper module 1. A first substrate is placed between adjacent spacing lines 12, and the size of the first substrate matches the size of the rectangle formed by the adjacent spacing lines 12. In this embodiment, the width of the first substrate is 25 mm, the length is 100 mm, and the thickness is 0.3 mm; connecting parts are provided at both ends of the control board 2, and a sliding button 10 is provided on the side of the connecting part to control the uniform thickness of the shearing area. The lower side of the connecting part is rotatably connected to a rotating shaft through a bearing, and a roller is provided on the rotating shaft. Sliding grooves 11 are provided on both sides of the upper module 1, and the rollers are located in the corresponding sliding grooves 11; the side walls of the upper module 1 are provided with limit columns 3, and the limit columns 3 are located on both sides of the upper module 1. In this embodiment, the length of the limit columns 3 is 12.5 mm, so as to control the sample length.
[0037] The lower module 5 is provided with a plurality of spacers 7 and a plurality of springs 6. In this embodiment, the height of the spacers 7 is 0.3 mm. A groove 9 is formed between adjacent spacers 7. The springs 6 correspond to the grooves 9 one by one. A second substrate is provided in the groove 9. In this embodiment, the width of the second substrate is 25 mm, the length is 100 mm, and the thickness is 0.3 mm. The size of the second substrate matches the size of the groove 9. The distance between the spacer lines 12 matches the width of the groove 9. In this embodiment, the width of the groove 9 is 25 mm, the length is 100 mm, and the depth is 0.3 mm. The height from the surface of the groove 9 to the upper surface of the upper module 1 is 0.1 mm. The thickness of the silicone sample is 2.3mm, excluding the thickness of the second substrate, and the thickness of the silicone sample is 2mm; a limit baffle 4 is mounted on the spacer 7. In this embodiment, the width of the limit baffle 4 is 20mm; both ends of the limit baffle 4 are connected to the lower module 5, and the limit baffle 4 is a hollow rectangular structure. Bolts 8 are passed through both ends of the limit baffle 4. The surface of the lower module 5 is provided with screw holes. The bolts 8 extend downward into the screw holes and are threadedly connected to the screw holes to prevent the limit baffle 4 from slipping during the gluing process, causing a deviation in the length of the shearing area; a plurality of leak-proof plates 13 are provided on the lower side wall of the limit baffle 4, and the width of the leak-proof plate 13 matches the width of the groove 9, such as Figure 2 shown.
[0038] When using the device, place one end of the second substrate against the side wall of the upper module 1, the spring 6 presses the other end of the second substrate, the limit baffle 4 contacts the head end of the limit column 3, and is fixed to the lower module 5 with bolts 8. Silicone is injected on the upper surface of the second substrate, and the height of the silicone is flush with or slightly higher than the surface of the upper module 1; the first substrate is placed within the spacing line 12 of the upper module 1, adhered to the silicone surface and contacts the side edge of the limit baffle 4, and the bonding part between the first substrate and the second substrate constitutes a shearing area. Press the sliding button 10 to drive the control panel 2 to slide to the limit baffle 4 and the surface of the first substrate, and the thickness is controlled by the self-weight of the control panel 2 to be uniformly stressed. After curing for 14 days, the staff will use a handheld shearing tool to shear the silicone adhered to the upper surface of the first substrate, remove the sample, and then use a universal material testing instrument to test the silicone sample.
[0039] like Figure 3 As shown, the present invention also provides a sample preparation method for a silicone shearing experiment of a photovoltaic module, the method comprising:
[0040] (1) Lay the first substrate flat on the upper surface of the upper module 1, place the second substrate into the groove 9, and fix the limit baffle 4;
[0041] The fixing of the limit baffle 4 includes: first loosening the bolts 8 on both sides of the limit baffle 4; sliding the limit baffle 4, when one side of the limit baffle 4 contacts the end of the limit column, tightening the bolts 8 through the screw holes on the lower module 5 to fix the position of the limit baffle 4.
[0042] (2) Inject silica gel onto the second substrate, translate the first substrate onto the silica gel sample, and slide the control plate 2 to the right to control the thickness of the silica gel sample;
[0043] The rightward sliding control plate 2 controls the thickness of the silicone sample, including: sliding the control plate 2 to the right, the control plate 2 passes over the silicone sample and flattens the silicone sample until the control plate 2 contacts the upper surface of the limit baffle 4, and after the silicone is solidified, the control plate 2 is reset.
[0044] The step of translating the first substrate onto the silica gel sample includes: moving the first substrate along the spacing line 12 until the first substrate contacts the limiting baffle 4 .
[0045] (3) After the silicone is cured, a shearing tool is used to modify the edge of the first substrate, and then a universal material testing machine is used to test the silicone sample.
[0046] The step of modifying the edge of the first substrate using a shearing tool comprises:
[0047] The silica gel overflowing from the upper surface of the first substrate is sheared using a shearing tool.
[0048] Those skilled in the art should understand that although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. Sample preparation tooling for silicone shear test of photovoltaic modules, characterized in that: The tooling comprises an upper module (1) and a lower module (5), wherein the height of the upper module (1) is greater than the height of the lower module (5); The upper surface of the upper module (1) is slidably connected to a control panel (2), the upper surface of the upper module (1) is provided with spacing lines (12), and a first substrate is provided between adjacent spacing lines (12), the first substrate having a width of 25 mm, a length of 100 mm, and a thickness of 0.3 mm; The lower module (5) is provided with a plurality of spacer plates (7) and a plurality of spring sheets (6), and grooves (9) are formed between adjacent spacer plates (7), the width of the grooves (9) is 25 mm, the length is 100 mm, and the depth is 0.3 mm. A second substrate is provided in the groove (9), the width of the second substrate is 25 mm, the length is 100 mm, and the thickness is 0.3 mm. A limit baffle (4) is mounted on the spacer plate (7), and the two ends of the limit baffle (4) are connected to the lower module (5). The lower side wall of the limit baffle (4) is provided with a plurality of leak-proof plates (13), and the width of the leak-proof plates (13) matches the width of the groove (9).
2. The sample preparation tool for the silicone shear test of photovoltaic modules according to claim 1, characterized in that: Connecting members are provided at both ends of the control panel (2), the lower side of the connecting member is rotatably connected to a rotating shaft via a bearing, a roller is provided on the rotating shaft, and sliding grooves (11) are provided on both sides of the upper module (1), and the roller is located in the corresponding sliding grooves (11).
3. The sample preparation tool for the silicone shear test of photovoltaic modules according to claim 1, characterized in that: The side walls of the upper module (1) are provided with limiting columns (3), and the limiting columns (3) are located on both sides of the upper module (1).
4. The sample preparation tool for the silicone shear test of photovoltaic modules according to claim 1, characterized in that: The spring pieces (6) correspond to the grooves (9) one by one.
5. The sample preparation tool for the silicone shear test of photovoltaic modules according to claim 2, characterized in that: A sliding button (10) is provided on the side of the connecting piece.
6. The sample preparation tool for the silicone shear test of photovoltaic modules according to claim 1, characterized in that: The distance between the spacing lines (12) matches the width of the groove (9).
7. The sample preparation tool for the silicone shear test of photovoltaic modules according to claim 1, characterized in that: The limit baffle (4) is in the form of a hollow rectangular parallelepiped structure, with bolts (8) passing through both ends of the limit baffle (4), and a screw hole is provided on the surface of the lower module (5), and the bolt (8) extends downward into the screw hole and is threadedly connected to the screw hole.
8. The sample preparation tool for the silicone shear test of photovoltaic modules according to claim 1, characterized in that: The size of the first substrate matches the size between adjacent spacing lines (12).
9. The sample preparation tool for the silicone shear test of photovoltaic modules according to claim 1, characterized in that: The upper module (1) and the lower module (5) are integrally formed.
10. A method for preparing samples for a silicone shear test of photovoltaic modules, characterized in that: The method comprises: Laying the first substrate flat on the upper surface of the upper module (1), placing the second substrate in the groove (9), and fixing the limiting baffle (4); Inject silica gel onto the second substrate, translate the first substrate onto the silica gel sample, and slide the control plate (2) to the right to control the thickness of the silica gel sample; After the silicone is cured, a shearing tool is used to modify the edge of the first substrate, and then a universal material testing machine is used to test the silicone sample.
11. The method for preparing samples for a silicone shear test for photovoltaic modules according to claim 10, characterized in that: The fixed limiting baffle (4) comprises: First, loosen the bolts (8) on both sides of the limit baffle (4); Slide the limit baffle (4), and when one side of the limit baffle (4) contacts the end of the limit column (3), tighten the bolt (8) into the corresponding screw hole on the lower module (5) to fix the position of the limit baffle (4).
12. The method for preparing samples for a silicone shear test for photovoltaic modules according to claim 10, characterized in that: The rightward sliding control plate (2) controls the thickness of the silica gel sample, including: The control plate (2) is slid to the right, and the control plate (2) passes over the silicone sample and flattens the silicone sample until the control plate (2) contacts the upper surface of the limit baffle (4). After the silicone is solidified, the control plate (2) is reset.
13. The method for preparing samples for a silicone shear test for photovoltaic modules according to claim 10, characterized in that: The step of translating the first substrate onto the silica gel sample comprises: The first substrate is moved along the spacing line (12) until the first substrate contacts the limiting stopper (4).
14. The method for preparing samples for a silicone shear test for photovoltaic modules according to claim 10, characterized in that: The step of modifying the edge of the first substrate using a shearing tool comprises: The silica gel overflowing from the upper surface of the first substrate is sheared using a shearing tool.