Equipment device for improving BC printing deformation
By designing a flip frame and a basket device with reinforced support points, the problem of cell bending and deformation during BC printing was solved, achieving stable printing and high yield of cells.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU HUAYAO PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-17
AI Technical Summary
During the BC printing process, the bending and deformation of the solar cells due to their own weight and the basket support method affects the yield and performance of the modules.
Design a device that includes a flower basket body and a flipping frame. By flipping it 180° so that the printed side of the battery cell faces down, gravity is used to offset part of the weight, and support points and positioning mechanisms are added to reduce deformation.
It effectively reduces cell bending deformation by more than 50%, improves printing yield by more than 2%, and enhances cell installation stability.
Smart Images
Figure CN224130701U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solar cell module technology, and in particular to a device for improving BC printing deformation. Background Technology
[0002] Back-contact (BC) cells are solar cells where both the emitter and base electrodes are located on the back of the cell. In the production of solar cell modules, the cells undergo processes such as printing and sintering. Currently, basket supports are commonly used during the printing process. During BC module printing, due to the cell's own weight and the basket support method, bending and deformation of the cells are prone to occur, affecting module yield and performance. The main reasons include: gravity: the cell's own weight causes it to sag between the basket support points; basket support method: traditional basket supports have few points, and their fixed positions cannot effectively distribute the cell's weight; material characteristics: the cells are thin, large in area, and lack sufficient rigidity, making them susceptible to deformation under external forces. Utility Model Content
[0003] To address the aforementioned technical problems, an apparatus for improving BC printing deformation is provided.
[0004] To achieve the above objectives, this utility model discloses a device for improving BC printing deformation, including a basket body and a flipping frame. The basket body includes two basket bases and basket stops symmetrically installed between the basket bases. The basket stops are provided with a bearing surface for supporting the battery cells. The bearing surface is flat. The basket body can rotate 180° around its central axis. The flipping frame includes a vertically arranged slide rail, on which a turntable is installed. Clamping arms extend from the upper and lower ends of the turntable to clamp the upper and lower ends of the basket body.
[0005] Furthermore, the flower basket body is provided with multiple equidistantly distributed bearing areas, each bearing area consisting of at least six sets of bearing surfaces, and each bearing surface is equipped with a fixing component.
[0006] Furthermore, the fixing component is an elastic clamping device, which includes a clamping head disposed on the bearing surface. The clamping head and the bearing surface are connected by a spring assembly. The clamping head with the spring assembly and the bearing surface adjacent to the bottom form an elastic clamping device.
[0007] Furthermore, the flower basket body is provided with a positioning component for positioning the battery cells.
[0008] Furthermore, the positioning component includes a positioning rod disposed between adjacent basket rails on the same side, a sleeve disposed on the side of the bearing area is sleeved on the positioning rod, the sleeve and the positioning rod are connected by a torsion spring, a bracket bent into a C-shape is connected to the outside of the sleeve, and a guide roller is movably mounted on the vertical section of the bracket.
[0009] Furthermore, the guide roller is provided with a guide groove corresponding to the bearing surface.
[0010] Furthermore, a fixing cylinder is installed at the end of the clamping arm, and the output end of the fixing cylinder is connected to the base of the flower basket. The rotation axis of the turntable is located on the same plane as the central axis of the flower basket body.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a device for improving BC printing deformation. The flower basket is rotated 180° by a flipping frame so that the printed surface of the battery cell faces down. Gravity is used to offset part of the weight of the battery cell itself. At the same time, the flower basket support points and auxiliary positioning mechanisms are increased to reduce bending deformation and improve the installation stability of the battery cell. Attached Figure Description
[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0013] Figure 1 This is a schematic diagram of the exploded structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the flower basket body structure of this utility model.
[0015] Figure 3 This is a schematic diagram of the positioning component structure of this utility model.
[0016] Figure 4 This is a schematic diagram of the internal structure of the fixing component of this utility model.
[0017] In the diagram: 1 is the flower basket body; 11 is the flower basket base; 12 is the flower basket stop bar; 13 is the bearing area; 131 is the bearing surface; 14 is the positioning component; 141 is the positioning rod; 142 is the sleeve; 143 is the guide roller; 144 is the guide groove; 15 is the fixing component; 151 is the fixing block; 152 is the spring assembly; 2 is the flipping frame; 3 is the slide rail; 4 is the turntable; 5 is the clamping arm; 6 is the fixing cylinder. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Embodiment 1 of this utility model, as follows: Figure 1 and Figure 2 As shown, the flower basket body 1 includes two flower basket bases 11 and flower basket baffles 12 symmetrically installed between the flower basket bases 11. The flower basket bases are made of lightweight, high-strength materials such as aluminum alloy, and the flower basket baffles are made of carbon fiber composite material. The flower basket baffles 12 are provided with a bearing surface 131 for supporting the battery cells. The bearing surface 131 is a plane. The flower basket body 1 can be rotated 180° around its central axis so that the printed surface of the battery cells faces up or down. The flipping frame 2 includes a vertically arranged slide rail 3, on which a turntable 4 is installed. Clamping arms 5 extend from the upper and lower ends of the turntable 4 to clamp the upper and lower ends of the flower basket body 1. Without major modifications to existing equipment, the printing defects of BC components can be improved by adjusting the direction of the flower baskets. No additional auxiliary devices are required, the cost is controllable, and the bending deformation of the battery cells is effectively reduced, improving the printing yield and component performance. By implementing the flower basket flipping scheme, the deformation of the battery cells can be reduced by more than 50%, and the printing yield can be improved by more than 2%.
[0020] The flower basket body 1 has multiple equidistantly distributed bearing areas 13. Each bearing area 13 consists of at least six bearing surfaces 131. Each bearing surface 131 is equipped with a fixing component 15. Each bearing area can be used to place battery cells in batches, making it convenient for operators to distinguish products of different specifications.
[0021] like Figure 4 As shown, the fixing component 15 is an elastic clamping device, which includes a clamping head 151 disposed on the bearing surface 131. The clamping head 151 is connected to the bearing surface 131 by a spring assembly 152. The clamping head 151 with the spring assembly 152 and the bearing surface 131 adjacent to the bottom form an elastic clamping device. During the process of the battery cell entering the bearing area, the thickness of the battery cell itself squeezes the clamping head, causing the clamping head to move upward and compress the spring assembly. The spring assembly provides a reaction force acting on the surface of the battery cell, which plays a vertical limiting role. The elastic force of the spring assembly ensures that the battery cell will not be damaged.
[0022] The flower basket body 1 is provided with a positioning component 14 for positioning the battery cells. The positioning component 14 includes a positioning rod 141 disposed between adjacent flower basket baffles 12 on the same side. A sleeve 142 disposed on the side of the bearing area 13 is sleeved on the positioning rod 141. The sleeve 142 and the positioning rod 141 are connected by a torsion spring. A bracket bent into a C-shape is connected to the outside of the sleeve 142. A guide roller 143 is movably mounted on the vertical section of the bracket. In this embodiment, the surface of the guide roller is smooth. For some smaller battery cell structures, the angle of the torsion spring can be adjusted so that the guide roller can apply a certain pressure to the side of the battery cell.
[0023] A fixing cylinder 6 is installed at the end of the clamping arm 5. The output end of the fixing cylinder 6 is connected to the flower basket base 11. The rotation axis of the turntable 4 is on the same plane as the central axis of the flower basket body 1.
[0024] The difference between Embodiment 2 and Embodiment 1 of this application is that, as Figure 3 As shown, the guide roller 143 has a guide groove 144 corresponding to the bearing surface 131. When the battery cell is inserted and installed in the flower basket body, the guide roller with the guide groove provides further positioning to avoid misalignment of the battery cell and increases the support points of the flower basket to ensure the installation stability of the battery cell.
[0025] The working principle of this embodiment is as follows: The battery cell is placed on the support surface, and the battery cell is positioned vertically by the fixing component and positioned on the left and right sides by the positioning component. Then, the flower basket body is connected to the fixing cylinder on the flipping frame, and the flower basket body is flipped 180° so that the printed surface of the battery cell is facing down. Finally, the flower basket body is placed into the printing equipment for printing.
[0026] Several points need to be clarified: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and the relative positional relationships may change when the absolute position of the described objects changes. Second, in this document, relational terms such as "first" and "second" are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.
[0027] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.
Claims
1. An apparatus for improving BC printing distortion, comprising a basket body (1) and a flipping frame (2), characterized in that, The flower basket body (1) includes two flower basket bases (11) and flower basket baffles (12) symmetrically installed between the flower basket bases (11). The flower basket baffles (12) are provided with a bearing surface (131) for bearing the battery cells. The bearing surface (131) is a plane. The flower basket body (1) can rotate 180° around its central axis. The flipping frame (2) includes a vertically arranged slide rail (3). A turntable (4) is installed on the slide rail (3). Clamping arms (5) extend from the upper and lower ends of the turntable (4) to clamp the upper and lower ends of the flower basket body (1).
2. An apparatus arrangement for improving BC print distortion according to claim 1, characterized in that The flower basket body (1) is provided with multiple equidistantly distributed bearing areas (13), each bearing area (13) consisting of at least six bearing surfaces (131), and each bearing surface (131) is equipped with a fixing component (15).
3. An apparatus arrangement for improving BC print distortion according to claim 2, characterized in that The fixing component (15) is an elastic clamping device, which includes a clamping head (151) disposed on the bearing surface (131). The clamping head (151) and the bearing surface (131) are connected by a spring assembly (152). The clamping head (151) with the spring assembly (152) and the bearing surface (131) adjacent to the bottom form an elastic clamping device.
4. An apparatus arrangement for improving BC print distortion according to claim 1, characterized in that, The flower basket body (1) is provided with a positioning component (14) for positioning the battery cells.
5. An apparatus arrangement for improving BC print distortion according to claim 4, characterized in that, The positioning component (14) includes a positioning rod (141) disposed between adjacent basket guards (12) on the same side. A sleeve (142) disposed on the side of the bearing area (13) is sleeved on the positioning rod (141). The sleeve (142) and the positioning rod (141) are connected by a torsion spring. A bracket bent into a C-shape is connected to the outside of the sleeve (142). A guide roller (143) is movably installed on the vertical section of the bracket.
6. An apparatus arrangement for improving BC print distortion according to claim 5, characterized in that, The guide roller (143) is provided with a guide groove (144) corresponding to the bearing surface (131).
7. An apparatus for improving BC print distortion as claimed in claim 1, wherein, The clamping arm (5) is equipped with a fixed cylinder (6) at its end. The output end of the fixed cylinder (6) is connected to the flower basket base (11). The rotation axis of the turntable (4) is on the same plane as the central axis of the flower basket body (1).