A basket structure for experimental segmentation
By introducing a rotating rod into the basket structure to contact and rotate with the bottom of the silicon wafer, the problem of low wafer splitting efficiency caused by excessively small wafer spacing is solved, and more efficient manual wafer splitting operation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGWEI SOLAR (JINTANG) CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-31
AI Technical Summary
The spacing between silicon wafers in the existing basket structure is too small, which is not conducive to manual wafer picking and results in low wafer splitting efficiency.
A basket structure including side plates, connecting rods, and rotating rods was designed. The rotating rods can contact the bottom of the silicon wafers and rotate during wafer splitting, causing some silicon wafers to rise and increasing the spacing between adjacent silicon wafers.
By increasing the spacing between silicon wafers, manual wafer removal is made easier, significantly improving wafer splitting efficiency. The time to split 500 silicon wafers was reduced from 40 minutes to 17 minutes, and the time to split 2000 wafers was reduced from 150 minutes to 60 minutes.
Smart Images
Figure CN224583674U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solar cell manufacturing technology, and more specifically, to a basket structure for experimental segmentation. Background Technology
[0002] The solar cell cleaning process basket is a crucial silicon wafer carrier in the photovoltaic manufacturing industry chain, specifically designed for wet processes such as silicon wafer texturing, cleaning, and etching. As photovoltaic cells develop towards ultra-thinness and high efficiency, traditional quartz or PP material baskets are gradually being replaced by high-performance fluoroplastics and composite materials due to their susceptibility to contamination and high microcrack rates. In the daily production process of solar cells, precise comparative experiments are essential. Since silicon wafers are cut from silicon ingots, and silicon ingots are cut from different regions of silicon rods, the efficiency of solar cells produced from silicon rods from different regions varies significantly. Therefore, process experiments in the solar cell stage require dividing adjacent silicon wafers evenly to ensure that experimental data is not affected by differences in silicon rod efficiency. However, since silicon wafer cutting is mostly continuous, when solar cells need to be experimentally verified, the silicon wafers in the basket need to be divided into two or more equal parts.
[0003] The existing basket structure has the technical problem that the spacing between silicon wafers is very small, which is not conducive to manual wafer picking and splitting, resulting in low splitting efficiency. Utility Model Content
[0004] This invention provides a basket structure for experimental wafer splitting, which can increase the spacing between silicon wafers, facilitate manual wafer picking, and improve wafer splitting efficiency.
[0005] The embodiments of this utility model can be implemented as follows:
[0006] An embodiment of this utility model provides a basket structure for experimental segmentation, comprising:
[0007] Side panels;
[0008] A connecting rod, both ends of which are connected to the side plate, and the connecting rod has a plurality of basket teeth along its length, which are used to clamp the silicon wafer;
[0009] A rotating rod, both ends of which are rotatably connected to the bottom of the side plate, is used to contact the bottom of the silicon wafer and to rotate during wafer slicing, thereby raising a portion of the silicon wafer to increase the spacing between two adjacent silicon wafers.
[0010] Optionally, the rotating rod includes a rod body and a rotating part, the rotating part being mounted on the rod body, both ends of the rod body being rotatably connected to the side plate, and the rotating part being used to contact the bottom of the silicon wafer.
[0011] Optionally, the rotating part has an elliptical structure, and the rotating part is used to make the short axis end and the long axis end of the rotating part contact the bottom of the silicon wafer in sequence when rotating, thereby periodically raising the silicon wafer.
[0012] Optionally, the rotating part is provided with a plurality of mounting slots along its length, the mounting slots being arranged along the circumference of the rotating part, and the mounting slots being used to engage the silicon wafer for positioning.
[0013] Optionally, the lifting height of the rotating rod is not less than 5mm.
[0014] Optionally, the basket structure for experimental segmentation further includes a drive module connected to the rotating rod for driving the rotating rod to rotate.
[0015] Optionally, the connecting rod includes a bottom rod and a side rod, with the bottom rod located at the bottom of the side plate and the side rod located above the bottom rod.
[0016] Optionally, the base rod and the rotating rod are located on the same horizontal plane.
[0017] Optionally, there are two base rods, and the rotating rod is located between the two base rods.
[0018] Optionally, there are multiple side rods, which are respectively disposed on both sides of the side plate, and the side rods are used to limit the side edge of the silicon wafer.
[0019] The beneficial effects of the basket structure for experimental segmentation in this embodiment of the invention include, for example:
[0020] This basket structure for experimental wafer splitting includes a side plate, a connecting rod, and a rotating rod. Both ends of the connecting rod are connected to the side plate, and the connecting rod has several basket teeth along its length. These basket teeth are used to engage silicon wafers. Both ends of the rotating rod are rotatably connected to the bottom of the side plate. The rotating rod contacts the bottom of the silicon wafer and rotates during wafer splitting, thereby raising a portion of the silicon wafer to increase the distance between adjacent wafers. In use, both ends of the rotating rod and the connecting rod are connected to the side plate. The connecting rod has several basket teeth that engage the silicon wafers, allowing several wafers to be arranged sequentially. When wafer splitting is required, the rotating rod is rotated to raise a portion of the silicon wafer, thus increasing the gap between adjacent wafers, facilitating manual wafer removal, and improving wafer splitting efficiency. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a first-view structural diagram of the basket structure for experimental segmentation provided in this embodiment.
[0023] Figure 2 This is a second-view structural diagram of the basket structure for experimental segmentation provided in this embodiment;
[0024] Figure 3 This is a first-view structural diagram of the rotating rod provided in this embodiment;
[0025] Figure 4 This is a schematic diagram of the second-view structure of the rotating rod provided in this embodiment;
[0026] Figure 5 This is a third-view structural diagram of the rotating rod provided in this embodiment.
[0027] Icons: 10-Side plate; 20-Connecting rod; 21-Bottom rod; 22-Side rod; 201-Basket teeth; 30-Rotating rod; 31-Rod body; 32-Rotating part; 301-Mounting slot. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0033] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0034] The solar cell cleaning process basket is a crucial silicon wafer carrier in the photovoltaic manufacturing industry chain, specifically designed for wet processes such as silicon wafer texturing, cleaning, and etching. As photovoltaic cells develop towards ultra-thinness and high efficiency, traditional quartz or PP material baskets are gradually being replaced by high-performance fluoroplastics and composite materials due to their susceptibility to contamination and high microcrack rates. In the daily production process of solar cells, precise comparative experiments are essential. Since silicon wafers are cut from silicon ingots, and silicon ingots are cut from different regions of silicon rods, the efficiency of solar cells produced from silicon rods from different regions varies significantly. Therefore, process experiments in the solar cell stage require dividing adjacent silicon wafers evenly to ensure that experimental data is not affected by differences in silicon rod efficiency. However, since silicon wafer cutting is mostly continuous, when solar cells need to be experimentally verified, the silicon wafers in the basket need to be divided into two or more equal parts.
[0035] The basket structure in related technologies has technical problems such as very small spacing between silicon wafers, which makes manual wafer picking and splitting difficult and results in low splitting efficiency.
[0036] Please refer to Figures 1-5 This embodiment provides a basket structure for experimental wafer splitting, which can effectively improve the technical problems mentioned above. It can increase the spacing between silicon wafers, facilitate manual wafer removal, and improve wafer splitting efficiency.
[0037] Please refer to Figures 1-5This embodiment provides a basket structure for experimental wafer slicing, including a side plate 10, a connecting rod 20, and a rotating rod 30. Both ends of the connecting rod 20 are connected to the side plate 10. The connecting rod 20 has a plurality of basket teeth 201 along its length, which are used to engage silicon wafers. Both ends of the rotating rod 30 are rotatably connected to the bottom of the side plate 10. The rotating rod 30 is used to contact the bottom of the silicon wafer and is used to rotate during wafer slicing, thereby raising part of the silicon wafer to increase the spacing between two adjacent silicon wafers.
[0038] Specifically, in existing basket structures where multiple silicon wafers are placed, the spacing between the wafers is relatively small, resulting in a dense arrangement. This makes it cumbersome to remove the wafers from the basket structure when experimental verification of the solar cells is required. Generally, manually dividing 500 silicon wafers takes 40 minutes, and manually dividing 2000 wafers takes 150 minutes. The overall wafer division efficiency is low. To solve this technical problem, the basket structure for experimental wafer division provided in this embodiment has both ends of the rotating rod 30 and the connecting rod 20 connected to the side plate 10. The connecting rod 20 has several basket teeth 201 that can engage the silicon wafers, allowing the wafers to be arranged sequentially and orderly. When wafer division is required, the rotating rod 30 is rotated to raise some of the wafers, thereby increasing the gap between adjacent wafers, facilitating manual removal and improving wafer division efficiency.
[0039] The basket structure for experimental wafer splitting provided in this embodiment, in actual use, requires 17 minutes to evenly split 500 silicon wafers, representing an improvement of 57.5% compared to the time required by existing technologies to split 500 wafers. It requires 60 minutes to evenly split 2000 silicon wafers, representing an improvement of 60% compared to the time required by existing technologies to split 2000 wafers. This significantly improves wafer splitting efficiency.
[0040] In this embodiment, the rotating rod 30 includes a rod body 31 and a rotating part 32. The rotating part 32 is mounted on the rod body 31, and both ends of the rod body 31 are rotatably connected to the side plate 10. The rotating part 32 is used to contact the bottom of the silicon wafer. The rod body 31 is a strip-shaped rod, and the bottom of the side plate 10 has a mounting hole. The end of the strip-shaped rod is disposed within the mounting hole. A rotating handle is provided at the end of the strip-shaped rod, allowing the operator to manually rotate the strip-shaped rod by rotating the handle, thereby driving the rotating part 32 to rotate.
[0041] It should be noted that, please refer to... Figure 3 , Figure 3A side view of the rotating rod 30 is shown. It can be seen that the rotating part 32 has an elliptical structure. The rotating part 32, during rotation, allows its short axis and long axis to sequentially contact the bottom of the silicon wafer, thereby periodically raising the wafer. When wafer separation is not required, the short axis of the rotating rod 30 contacts the bottom of the silicon wafer. When experimental wafer separation is required, the rod is manually rotated by rotating the handle, causing the rotating part 32 to rotate. This causes the short axis to move away from the bottom of the silicon wafer, and the bottom of the wafer gradually rises along the surface of the rotating part 32 until the long axis reaches the bottom of the wafer, thus raising the wafer. After the wafer is raised, the wafers on the basket structure can form a two-layer structure, increasing the spacing between adjacent wafers and facilitating manual wafer removal. After wafer removal, the rod can be manually rotated again in the same direction, continuing to rotate the rotating part 32. This causes the long axis to move away from the bottom of the wafer, and the bottom of the wafer gradually descends along the surface of the rotating part 32 until the short axis reaches the bottom of the wafer, thus resetting it.
[0042] In this embodiment, the surface of the rotating part 32 is a smooth arc-shaped structure, which can ensure a smoother lifting of the silicon wafer during rotation. Of course, in other embodiments, the rotating part 32 can also be a square structure or a cross-shaped structure, etc., and is not specifically limited here.
[0043] Understandably, the rotation angle of the rotating part 32 is 90°. The rotating part 32 can rotate clockwise or counterclockwise, and no specific limitation is made here.
[0044] Specifically, the rod body 31 and the rotating part 32 are integrally formed.
[0045] It should also be noted that the rotating part 32 has several mounting slots 301 along its length. The mounting slots 301 are arranged along the circumference of the rotating part 32 and are used to engage the silicon wafer for positioning. When the rotating part 32 rotates, the silicon wafer always moves within the mounting slots 301, preventing the silicon wafer from deviating.
[0046] In this embodiment, the lifting height of the rotating rod 30 is not less than 5mm. Specifically, the lifting height of the rotating rod 30 is 15mm to ensure that silicon wafers with different spacings can be clearly distinguished in height, so as to facilitate slicing. In other embodiments, the lifting height of the rotating rod 30 can also be 8mm, 10mm, etc., and is not specifically limited here.
[0047] In addition, the basket structure used for experimental segmentation also includes a drive module, which is connected to the rotating rod 30 and used to drive the rotating rod 30 to rotate. The rotating rod 30 can be driven to rotate via the drive module, thereby achieving automated operation. The drive module can be a motor.
[0048] Furthermore, the connecting rod 20 includes a bottom rod 21 and a side rod 22, with the bottom rod 21 located at the bottom of the side plate 10 and the side rod 22 located above the bottom rod 21.
[0049] In this embodiment, the base rod 21 and the rotating rod 30 are located on the same horizontal plane.
[0050] Specifically, there are two base rods 21, and the rotating rod 30 is located between the two base rods 21. There are multiple side rods 22, which are respectively disposed on both sides of the side plate 10. The side rods 22 are used to limit the side edges of the silicon wafer. In this embodiment, there are six side rods 22, with three side rods 22 on each side of the side plate 10. The three side rods 22 are arranged at intervals in the vertical direction to limit the side edges of the silicon wafer.
[0051] Understandably, the basket teeth 201 of the bottom rod 21 are disposed on the upper surface of the bottom rod 21, and the basket teeth 201 of the side rod 22 are disposed on the side of the side rod 22. The bottom rod 21 and the side rod 22 can simultaneously limit the side and bottom of the silicon wafer.
[0052] In this embodiment, the rotating rod 30 can lift one silicon wafer every other silicon wafer, or it can lift one silicon wafer every two silicon wafers. No specific limitation is made here.
[0053] The basket structure for experimental segmentation provided in this embodiment has at least the following advantages:
[0054] In this embodiment, when placing several silicon wafers on a basket structure in the prior art, the spacing between the wafers is relatively small, and the wafers are arranged very tightly. This makes it cumbersome to remove the wafers from the basket structure when experimental verification of the solar cells is required. Generally, manually dividing 500 silicon wafers takes 40 minutes, and manually dividing 2000 silicon wafers takes 150 minutes. The overall wafer division efficiency is low. To solve this technical problem, the basket structure for experimental wafer division provided in this embodiment has both ends of the rotating rod 30 and the connecting rod 20 connected to the side plate 10. The connecting rod 20 has several basket teeth 201, which can engage the silicon wafers, allowing several silicon wafers to be arranged sequentially and orderly. When wafer division is required, the rotating rod 30 is rotated to raise some of the silicon wafers, thereby increasing the gap between adjacent silicon wafers, facilitating manual wafer removal, and improving wafer division efficiency.
[0055] In summary, this utility model embodiment provides a basket structure for experimental wafer splitting. The basket structure for experimental wafer splitting includes a side plate 10, a connecting rod 20, and a rotating rod 30. Both ends of the connecting rod 20 are connected to the side plate 10. The connecting rod 20 has a plurality of basket teeth 201 along its length direction. The basket teeth 201 are used to engage silicon wafers. Both ends of the rotating rod 30 are rotatably connected to the bottom of the side plate 10. The rotating rod 30 is used to contact the bottom of the silicon wafer and is used to rotate during wafer splitting, thereby raising part of the silicon wafer to increase the distance between two adjacent silicon wafers. In use, both ends of the rotating rod 30 and the connecting rod 20 are connected to the side plate 10. The connecting rod 20 is provided with several basket teeth 201, which can engage silicon wafers, so that several silicon wafers are arranged in an orderly manner. When it is necessary to slicing, the rotating rod 30 is rotated to raise some silicon wafers, thereby increasing the gap between two adjacent silicon wafers, making it easier to manually pick up the wafers and improving the slicing efficiency.
[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A flower basket structure for experimental fragments, characterized by, include: Side panel (10); A connecting rod (20) is provided at both ends of which are connected to the side plate (10). The connecting rod (20) has a plurality of basket teeth (201) along its length direction. The basket teeth (201) are used to snap onto the silicon wafer. A rotating rod (30) is provided, both ends of which are rotatably connected to the bottom of the side plate (10). The rotating rod (30) is used to contact the bottom of the silicon wafer and is used to rotate in the case of wafer slabs, thereby raising part of the silicon wafers to increase the distance between two adjacent silicon wafers.
2. The flower basket structure for experimental slices according to claim 1, characterized in that, The rotating rod (30) includes a rod body (31) and a rotating part (32). The rotating part (32) is mounted on the rod body (31). Both ends of the rod body (31) are rotatably connected to the side plate (10). The rotating part (32) is used to contact the bottom of the silicon wafer.
3. The flower basket structure for experimental slices according to claim 2, characterized in that, The rotating part (32) has an elliptical structure. The rotating part (32) is used to make the short axis end and the long axis end of the rotating part (32) contact the bottom of the silicon wafer in sequence when rotating, thereby periodically raising the silicon wafer.
4. The flower basket structure for experimental slices according to claim 2, characterized in that, The rotating part (32) is provided with a plurality of mounting grooves (301) along its length direction. The mounting grooves (301) are arranged along the circumferential direction of the rotating part (32). The mounting grooves (301) are used to snap on the silicon wafer for positioning.
5. The flower basket structure for experimental slices according to claim 1, characterized in that, The lifting height of the rotating rod (30) is not less than 5mm.
6. The flower basket structure for experimental slices according to claim 1, characterized in that, The basket structure for experimental segmentation also includes a drive module, which is connected to the rotating rod (30) and is used to drive the rotating rod (30) to rotate.
7. The flower basket structure for experimental fractions according to claim 1, characterized by, The connecting rod (20) includes a bottom rod (21) and a side rod (22). The bottom rod (21) is located at the bottom of the side plate (10), and the side rod (22) is located above the bottom rod (21).
8. The flower basket structure for experimental fractions according to claim 7, characterized by, The base rod (21) and the rotating rod (30) are located on the same horizontal plane.
9. The flower basket structure for experimental fractions according to claim 7, characterized by, There are two base rods (21), and the rotating rod (30) is located between the two base rods (21).
10. The flower basket structure for experimental fractions according to claim 7, characterized by, The number of side rods (22) is multiple, and the multiple side rods (22) are respectively disposed on both sides of the side plate (10). The side rods (22) are used to limit the side edge of the silicon wafer.