Mechanical load testing device
By designing a mechanical load testing device including a base, load-bearing assembly, adjustable parts, slide rods and detection parts, the problems of high cost, large size and inconvenience in traditional devices are solved, and the rapid and effective testing of the mechanical load of silicon wafers or battery cells is achieved, and the advantages of reducing testing costs and portability are achieved.
Patent Information
- Application Number
- CN202422155592.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-03
AI Technical Summary
Traditional mechanical load testing devices are costly, large in size, and inconvenient, not easy to process monitoring, and are difficult to meet the requirements of mechanical load performance evaluation of silicon wafers and battery cells.
A mechanical load testing device including a base, a load-bearing assembly, an adjustable piece, a slide rod and a detecting member is designed. The position of the load-bearing rod is adjusted through the adjustable piece, and the detecting member applies a detection pressure to achieve a rapid test of the mechanical load of the silicon wafer or battery cell.
It realizes rapid and effective mechanical load testing of solar silicon wafers or battery cells while reducing testing costs, with the advantages of portability and process monitoring.
Smart Images
Figure CN223021786U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic module detection, in particular to a mechanical load testing device. Background Art
[0002] At present, with the thinning of silicon wafers, the control of the fragmentation rate and the process requirements are becoming more and more strict during the product preparation process, and it is also becoming more and more important to evaluate the mechanical load performance of silicon wafers and solar cells. However, the traditional mechanical load testing device not only has a high cost, but also has a large volume, is inconvenient to carry, and is not easy to monitor during the process, thus causing many inconveniences.
[0003] Therefore, there is an urgent need to propose a mechanical load testing device to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to propose a mechanical load testing device, which can quickly test the mechanical load of solar silicon wafers or solar cells while effectively reducing the testing cost.
[0005] To solve the above technical problems, the utility model provides a mechanical load testing device, which includes a base, a bearing assembly, an adjustable member, a first sliding rod, a second sliding rod, a plurality of brackets and a plurality of detecting members;
[0006] The bearing assembly includes a first bearing rod and a second bearing rod arranged in parallel on the base; the first bearing rod and the second bearing rod form a placement area for placing the object to be detected;
[0007] Both ends of the first sliding rod are respectively installed on the base through the brackets; both ends of the second sliding rod are respectively installed on the base through the brackets; the first sliding rod is parallel to the second sliding rod;
[0008] One end of the first bearing rod is slidably installed on the first sliding rod, and the other end is slidably installed on the second sliding rod through the adjustable member;
[0009] The adjustable member is used to adjust the first bearing rod to move left and right to approach or move away from the second bearing rod, and fix the first bearing rod after the position of the first bearing rod is determined;
[0010] The detecting member is used to apply a detection pressure on the object to be detected.
[0011] Further, the detecting member includes a magnetic sheet.
[0012] Further, the number of the detecting members is multiple.
[0013] Further, the thickness of the base ranges from 1.5 to 2 mm, the length ranges from 300 to 350 mm, and the width ranges from 250 to 300 mm.
[0014] Further, the height of the bracket ranges from 100 to 150 mm.
[0015] Further, the lengths of the first sliding rod and the second sliding rod range from 200 to 250 mm.
[0016] Further, the length of the first bearing rod is less than the length of the second bearing rod.
[0017] Further, the length of the first bearing rod ranges from 220 to 250 mm, and the length of the second bearing rod ranges from 250 to 300 mm.
[0018] Further, the adjustable member includes a threaded member and a slider; the second sliding rod passes through the slider and is slidably connected to the slider; a connecting rod is connected between the first bearing rod and the slider; one end of the threaded member is located outside the slider, and the other end extends into the slider and is threadedly connected to the slider; by rotating the threaded member, the other end of the threaded member can abut against the side wall of the second sliding rod to limit the movement of the slider.
[0019] Further, both the first sliding rod and the second sliding rod are perpendicular to the first bearing rod.
[0020] By the above technical solutions, the present utility model has the following beneficial effects:
[0021] Through the settings of the base, the bearing assembly, the adjustable member, the first sliding rod, the second sliding rod, a plurality of brackets and a plurality of detecting members; and the bearing assembly includes a first bearing rod and a second bearing rod arranged in parallel on the base; the first bearing rod and the second bearing rod form a placement area for placing the object to be detected; both ends of the first sliding rod are mounted on the base through brackets; both ends of the second sliding rod are mounted on the base through brackets; the first sliding rod is parallel to the second sliding rod; one end of the first bearing rod is slidably mounted on the first sliding rod, and the other end is slidably mounted on the second sliding rod through the adjustable member; the adjustable member is used to adjust the left and right movement of the first bearing rod to approach or move away from the second bearing rod, and fix the first bearing rod after determining its position; the detecting member is used to apply a detection pressure on the object to be detected. The present utility model can quickly test the mechanical load of solar wafers or solar cells while effectively reducing the test cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall structure of the mechanical load testing device in an embodiment of the present utility model.
[0023] In the figure, 1 is the base; 21 is the first load-bearing rod; 22 is the second load-bearing rod; 31 is the threaded member; 32 is the slider; 33 is the connecting rod; 4 is the first sliding rod; 5 is the second sliding rod; 6 is the bracket; 7 is the detecting member; 100 is the object to be detected. Detailed implementation manners
[0024] The following will describe in more detail a mechanical load testing device of the present utility model with reference to the accompanying drawings, in which the preferred embodiments of the present utility model are shown. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving the advantageous effects of the present utility model. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present utility model.
[0025] In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. The advantages and features of the present utility model will be clearer according to the following description. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present utility model.
[0026] As Figure 1 shown, an embodiment of the present utility model provides a convenient and practical mechanical load testing device, including a base 1, a load-bearing assembly, an adjustable member, a first sliding rod 4, a second sliding rod 5, a plurality of brackets 6 and a plurality of detecting members 7.
[0027] Specifically, the load-bearing assembly includes a first load-bearing rod 21 and a second load-bearing rod 22 arranged in parallel on the base 1; the first load-bearing rod 21 and the second load-bearing rod 22 form a placement area for placing the object to be detected 100; both ends of the first sliding rod 4 are installed on the base 1 through the brackets 6; both ends of the second sliding rod 5 are installed on the base 1 through the brackets 6; the first sliding rod 4 is parallel to the second sliding rod 5; one end of the first load-bearing rod 21 is slidably installed on the first sliding rod 4, and the other end is slidably installed on the second sliding rod 5 through the adjustable member; the adjustable member is used to adjust the first load-bearing rod 21 to move left and right to approach or move away from the second load-bearing rod 22, and fix the first load-bearing rod 21 after the position of the first load-bearing rod 21 is determined; the detecting member 7 is used to apply a detection pressure on the object to be detected 100.
[0028] In a specific embodiment, the second bearing rod 22 and the bracket 6 can be mounted on the base 1 by the first screw. Both ends of the second sliding rod 5 are respectively mounted on the bracket 6 by a plurality of second screws. Both ends of the first sliding rod 4 are respectively mounted on the bracket 6 by a plurality of third screws. Therefore, a plurality of threaded holes for cooperating with the screws can be provided on the second bearing rod 22, the bracket 6, the second sliding rod 5, the first sliding rod 4 and the base 1. One end of the first bearing rod 21 can be connected with a sliding block, and the first sliding rod 4 passes through the sliding block and is slidably connected with the sliding block; alternatively, in order to avoid the situation that one end of the first bearing rod 21 is stuck or difficult to slide during sliding, one end of the first bearing rod 21 can also be slidably mounted on the second sliding rod 5 through the adjustable member.
[0029] In a specific example, the detection member 7 includes a magnetic sheet. Under the condition of achieving the effect, the detection member 7 can also be other embodiments. The magnetic sheet can be easily attached to the surface of the object to be detected 100, which is convenient for quick installation and replacement, especially in the occasions where frequent tests are required. The adsorption effect of the magnetic sheet will not cause any physical damage to the object to be detected 100, which is particularly important for valuable or sensitive items. The magnetic sheet can provide a stable fixing effect, ensuring that the detection member 7 will not move due to vibration or other external forces during the test, thus ensuring the accuracy of the test results. The magnetic sheet can adapt to surfaces of different shapes and materials, which enables the device to be applied to a wider range of test objects.
[0030] Furthermore, the detection member 7 is a circular structure or a rectangular structure. Under the condition of achieving the effect, the detection member 7 can also be other shapes. The circular structure and the rectangular structure can help the load to be evenly distributed on the contact surface, which is beneficial to measuring and evaluating the bearing capacity of the object to be detected 100.
[0031] In an embodiment, the thickness of the base 1 ranges from 1.5 - 2 mm (for example, it can be 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm and 2 mm), the length ranges from 300 - 350 mm (for example, it can be 300 mm, 310 mm, 320 mm, 330 mm, 340 mm and 350 mm), and the width ranges from 250 - 300 mm (for example, it can be 250 mm, 260 mm, 270 mm, 280 mm, 290 mm and 300 mm). Those skilled in the art can know that the thickness, length and width of the base 1 can be set according to actual requirements.
[0032] In this embodiment, the height range of the bracket 6 is between 100 - 150 mm (for example, it can be 100 mm, 110 mm, 120 mm, 130 mm, 140 mm, and 150 mm). As those skilled in the art know, the height of the bracket 6 can be set according to actual requirements.
[0033] In one embodiment, the length range of the first sliding rod 4 and the second sliding rod 5 is between 200 - 250 mm (for example, it can be 200 mm, 210 mm, 220 mm, 230 mm, 240 mm, and 250 mm). As those skilled in the art know, the lengths of the first sliding rod 4 and the second sliding rod 5 can be set according to actual requirements.
[0034] In this embodiment, the length of the first bearing rod 21 is less than the length of the second bearing rod 22. The longer second bearing rod 22 can provide more stable support, which helps to maintain the balance of the entire testing device. Especially when bearing a large load, it can reduce bending or deformation caused by insufficient length of the bearing rod.
[0035] Furthermore, the length range of the first bearing rod 21 is between 220 - 250 mm (for example, it can be 220 mm, 230 mm, 240 mm, and 250 mm), and the length range of the second bearing rod 22 is between 250 - 300 mm (for example, it can be 250 mm, 260 mm, 270 mm, 280 mm, 290 mm, and 300 mm). As those skilled in the art know, the lengths of the second bearing rod and the first bearing rod 21 can be set according to actual requirements.
[0036] In a specific example, the adjustable member includes a threaded member 31 and a slider 32. Specifically, the second sliding rod 5 passes through the slider 32 and is slidably connected to the slider 32; a connecting rod 33 is connected between the first bearing rod 21 and the slider 32; one end of the threaded member 31 is located outside the slider 32, and the other end extends into the slider 32 and is threadedly connected to the slider 32; by rotating the threaded member 31, the other end of the threaded member 31 can be made to abut against the side wall of the second sliding rod 5 to limit the movement of the slider 32. When the other end of the threaded member 31 abuts against the side wall of the second sliding rod 5, the movement of the slider 32 can be effectively restricted, ensuring the stability of the bearing rod during the test and avoiding test errors caused by movement. The structures of the threaded member 31 and the slider 32 are relatively simple, facilitating inspection, cleaning, and maintenance, which helps to extend the service life of the device.
[0037] Preferably, a handle can be connected to the end of the threaded member 31 located outside the slider 32, facilitating the rotation of the threaded member 31.
[0038] Further, both the first sliding rod 4 and the second sliding rod 5 are perpendicular to the first bearing rod 21.
[0039] In the first embodiment, for example, silicon wafers are selected to test mechanical load: Silicon wafers from different manufacturers A and B, but with the same size and thickness (for example, both with a size of 182 mm × 182 mm and a thickness of 160 μm, and the specific size and thickness can be selected according to the actual situation) are respectively placed on the placement areas of two sets of this device. Each test piece 7 is, for example, 10 g. Test pieces 7 are successively added at the middle position of the silicon wafer until the silicon wafer is crushed under pressure. The number of test pieces 7 is read, which is 79 in total, that is, m = 79 × 10 = 790 g. The maximum force borne by the silicon wafer is calculated by the formula G = mg to be 7.742 N, so as to verify the quality of silicon wafers from different manufacturers and facilitate the selection of silicon wafers with better cost performance.
[0040] In the second embodiment, for example, silicon wafers are selected to test mechanical load: Two silicon wafers from the same manufacturer but with different thicknesses (for example, both with a size of 182 mm × 182 mm and thicknesses of 160 μm and 150 μm respectively) are respectively placed on the placement areas of two sets of this device, and the maximum force borne by the silicon wafer is calculated according to the calculation method of the above embodiment, so as to verify that the cost of the silicon wafer can be better reduced after thinning.
[0041] In the third embodiment, for example, solar cells are selected to test mechanical load: Solar cells from different manufacturers A and B, but with the same size and thickness (for example, both with a size of 182 mm × 182 mm and a thickness of 160 μm, and the specific size and thickness can be selected according to the actual situation) are respectively placed on the placement areas of two sets of this device, and the maximum force borne by the solar cell is calculated according to the calculation method of the above embodiment.
[0042] In the fourth embodiment, for example, solar cells are selected to test mechanical load: Two solar cells from the same manufacturer but with different thicknesses (for example, both with a size of 182 mm × 182 mm and thicknesses of 160 μm and 150 μm respectively) are respectively placed on the placement areas of two sets of this device, and the maximum force borne by the solar cell is calculated according to the calculation method of the above embodiment.
[0043] Combining the above first embodiment and third embodiment, the maximum forces borne by the silicon wafers and solar cells (the silicon wafers and solar cells have the same size and thickness) in manufacturer A are 7.742 N and 5.586 N respectively; the maximum forces borne by the silicon wafers and solar cells (the silicon wafers and solar cells have the same size and thickness) in manufacturer B are 7.546 N and 5.488 N respectively. Through data comparison, the quality of the silicon wafers and solar cells of manufacturer A is better than that of manufacturer B, thus facilitating the user's selection.
[0044] Combining the above-mentioned second embodiment and fourth embodiment, that is, silicon wafers and solar cells of the same manufacturer but different thicknesses. For example, when the thicknesses of both the silicon wafer and the solar cell are 160 μm, the maximum forces borne by the silicon wafer and the solar cell are 7.938 N and 5.292 N respectively. Another example is that when the thicknesses of both the silicon wafer and the solar cell are 150 μm, the maximum forces borne by the silicon wafer and the solar cell are 6.860 N and 4.802 N respectively. Through data comparison, the silicon wafers and solar cells with a thickness of 160 μm have better quality than those with a thickness of 150 μm. Therefore, the maximum forces borne by the silicon wafers and solar cells can be quickly tested on this device.
[0045] The above data shows that the mechanical load testing device provided by this device has the advantages of being easy to carry, inexpensive, and providing fast and effective test data, and can be applied to the monitoring of the production process of solar silicon wafers and solar cells.
[0046] In this embodiment, multiple detection members 7 are gradually added onto the solar silicon wafer or solar cell and are located in the middle of the solar silicon wafer or solar cell until the solar silicon wafer or solar cell bends and breaks due to gravity, and then the number of detection members 7 is counted. For example, the weight of each detection member 7 is a known quantity, and the gravity is finally calculated through the formula G = mg, which is the maximum mechanical load of the solar silicon wafer or solar cell.
[0047] When it is necessary to test the object to be detected 100 of different sizes (such as a solar silicon wafer or a solar cell), by rotating the threaded member 31, the threaded member 31 no longer abuts against the second sliding rod 5. Then move the first bearing rod 21 left and right to adjust the distance between the first bearing rod 21 and the second bearing rod 22, and the placement of the object to be detected 100 of different sizes can be achieved.
[0048] In summary, a mechanical load testing device proposed by the present utility model has the following advantages:
[0049] Through the settings of the base, the bearing assembly, the adjustable member, the first sliding rod, the second sliding rod, multiple brackets and the detection member; and the bearing assembly includes a first bearing rod and a second bearing rod arranged in parallel on the base; the first bearing rod and the second bearing rod form a placement area for placing the object to be detected; both ends of the first sliding rod are installed on the base through brackets; both ends of the second sliding rod are installed on the base through brackets; the first sliding rod is parallel to the second sliding rod; one end of the first bearing rod is slidably installed on the first sliding rod, and the other end is slidably installed on the second sliding rod through the adjustable member; the adjustable member is used to adjust the left and right movement of the first bearing rod to approach or move away from the second bearing rod, and fix the first bearing rod after the position of the first bearing rod is determined; the detection member is used to apply a detection pressure on the object to be detected. The present utility model can quickly test the mechanical load of solar silicon wafers or solar cells while effectively reducing the test cost.
[0050] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model is also intended to include these modifications and variations.
Claims
1. A mechanical load testing device, characterized in that: It includes a base, a bearing assembly, an adjustable member, a first sliding rod, a second sliding rod, a plurality of brackets and a plurality of detection members; The bearing assembly comprises a first bearing rod and a second bearing rod arranged in parallel on the base; the first bearing rod and the second bearing rod form a placement area for placing the object to be detected; The two ends of the first slide bar are respectively mounted on the base through the brackets; the two ends of the second slide bar are respectively mounted on the base through the brackets; the first slide bar is parallel to the second slide bar; One end of the first bearing rod is slidably mounted on the first sliding rod, and the other end of the first bearing rod is slidably mounted on the second sliding rod through the adjustable member; The adjustable member is used to adjust the first load-bearing rod to move left and right so as to be close to or away from the second load-bearing rod, and to fix the first load-bearing rod after the first load-bearing rod is positioned; The detection member is used to be placed on the object to be detected to apply detection pressure.
2. The mechanical load testing device according to claim 1, characterized in that: The detection member includes a magnetic sheet.
3. The mechanical load testing device according to claim 2, characterized in that: The detection element is a circular structure or a rectangular structure.
4. The mechanical load testing device according to claim 1, characterized in that: The base has a thickness ranging from 1.5 to 2 mm, a length ranging from 300 to 350 mm, and a width ranging from 250 to 300 mm.
5. The mechanical load testing device according to claim 1, characterized in that: The height of the bracket ranges from 100 to 150 mm.
6. The mechanical load testing device according to claim 1, characterized in that: The lengths of the first sliding bar and the second sliding bar range from 200 to 250 mm.
7. The mechanical load testing device according to claim 1, characterized in that: The length of the first bearing bar is smaller than the length of the second bearing bar.
8. The mechanical load testing device according to claim 7, characterized in that: The length of the first bearing bar ranges from 220 to 250 mm, and the length of the second bearing bar ranges from 250 to 300 mm.
9. The mechanical load testing device according to claim 1, characterized in that: The adjustable part includes a threaded part and a slider; the second sliding rod passes through the slider and is slidably connected to the slider; a connecting rod is connected between the first load-bearing rod and the slider; one end of the threaded part is located outside the slider, and the other end extends into the slider and is threadedly connected to the slider; by rotating the threaded part, the other end of the threaded part can be against the side wall of the second sliding rod to limit the movement of the slider.
10. The mechanical load testing device according to claim 1, characterized in that: The first sliding bar and the second sliding bar are both perpendicular to the first bearing bar.