suction cutting tool

Abstract

This application provides a suction-cutting fixture. An adsorption component and a cutting component are disposed on the fixture base. The cutting component includes a horizontal blade group and a vertical blade group. The horizontal blade group is movably mounted on the fixture base, and the vertical blade group is movably mounted on at least one of the fixture base and the horizontal blade group. A control component is connected to the cutting component and controls the movement of the cutting component relative to the fixture base. Based on the aforementioned suction-cutting fixture, when photovoltaic modules are stacked, the suction-cutting fixture can be fastened onto the cell to be replaced. The cutting component can be aligned with the edge of the cell. The control component controls the movement of the cutting component. As the adsorption component holds the cell and moves upward, the cutting components around the cell can simultaneously move downward to cut the adhesive film. By lifting the suction-cutting fixture upward, the cell and adhesive film can be held by the adsorption component, allowing them to be removed quickly. This achieves rapid cell replacement without affecting the welding quality and efficiency.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to suction cutting tooling. Background Technology

[0002] Currently, infrared welding is the most widely used welding process for photovoltaic modules. However, this method has drawbacks such as full-surface heating and significant warping. Infrared welding is beginning to struggle to meet new production requirements in terms of precision, processing efficiency, reliability, and applicability, hindering large-scale cost reductions in the manufacturing process. Laser welding can be used in photovoltaic module welding. Since the positive and negative grid lines of the back contact cells are both on the back side, full-panel welding can be used, which not only improves welding efficiency but also reduces heat loss from the module.

[0003] The laser full-plate welding process involves using glass as a base plate, then laying an adhesive film on it. Next, the cells are neatly arranged on the film, and finally, the solder ribbons and busbars are fixed in their respective positions. A silicone film is then placed over the assembly for welding. The laser welding process uses a fiber laser path. The principle is to excite an active medium using a specific method, causing it to oscillate back and forth in a resonant cavity, thus converting it into a stimulated emission beam. When the beam comes into contact with the workpiece, its energy is absorbed by the workpiece. Welding can then occur when the temperature reaches the material's melting point.

[0004] The laser full-plate welding temperature is about 270℃. The encapsulant film and the cell are prone to cross-linking. If a cell in a photovoltaic module has a microcrack or breakage, the cell and encapsulant film in that location need to be reworked and replaced, and the welding strip needs to be re-fixed. This is not only complicated and time-consuming, but also requires highly skilled personnel. Utility Model Content

[0005] Therefore, it is necessary to provide a suction and cutting tool to address the aforementioned technical problems.

[0006] This application provides a suction-cutting fixture, the suction-cutting fixture comprising:

[0007] Tooling base;

[0008] An adsorption assembly is disposed on the tooling substrate;

[0009] A cutting assembly is disposed on the tooling base. The cutting assembly includes a transverse blade group and a longitudinal blade group. The transverse blade group is movably mounted on the tooling base, and the longitudinal blade group is movably mounted on at least one of the tooling base and the transverse blade group.

[0010] A control component connected to the cutting component, the control component being configured to control the movement of the cutting component relative to the tooling base.

[0011] In one embodiment, the longitudinal blade assembly is movably mounted to the transverse blade assembly;

[0012] The control component is connected to the transverse blade assembly, and the control component is configured to control the movement of the transverse blade assembly relative to the tooling base.

[0013] The transverse cutter group drives the longitudinal cutter group to move relative to the tooling base, thereby the control component indirectly controls the movement of the longitudinal cutter group relative to the tooling base.

[0014] In one embodiment, the transverse blade group includes a first transverse blade group and a second transverse blade group, which are respectively disposed at opposite ends of the tooling base in the transverse direction.

[0015] The first cross blade assembly includes a first rotating base, a first transverse blade, and a second transverse blade. The first rotating base is disposed on the tooling base, and the first transverse blade and the second transverse blade are rotatably connected to each other through the first rotating base.

[0016] The second transverse blade assembly includes a second pivot seat, a third transverse blade, and a fourth transverse blade. The second pivot seat is disposed on the tooling base, and the third transverse blade and the fourth transverse blade are rotatably connected to each other through the second pivot seat.

[0017] In one embodiment, the longitudinal blade assembly includes a first longitudinal blade and a second longitudinal blade, the first longitudinal blade and the second longitudinal blade being respectively disposed at opposite ends of the tooling base in the longitudinal direction;

[0018] The two ends of the first longitudinal blade are movably connected to the first transverse blade and the third transverse blade, respectively, and the two ends of the second longitudinal blade are movably connected to the second transverse blade and the fourth transverse blade, respectively.

[0019] In one embodiment, the first longitudinal blade has first sliding convex shafts at both ends, and both the first transverse blade and the third transverse blade have first linear sliding holes. The two first sliding convex shafts of the first longitudinal blade are respectively slidably fitted into the two first linear sliding holes of the first transverse blade and the third transverse blade; and / or,

[0020] The second longitudinal blade is provided with a second sliding cam at both ends, and the second transverse blade and the fourth transverse blade are provided with a second linear sliding hole. The two second sliding cams of the second longitudinal blade are respectively slidably assembled in the two second linear sliding holes of the second transverse blade and the fourth transverse blade.

[0021] In one embodiment, the cutting edge length of the first longitudinal blade is greater than the linear distance between the two first sliding cams of the first longitudinal blade; and / or,

[0022] The cutting edge length of the second longitudinal blade is greater than the linear distance between the two second sliding cams of the second longitudinal blade; and / or,

[0023] The blade shape of at least one of the first transverse blade, the second transverse blade, the third transverse blade, and the fourth transverse blade is arc-shaped.

[0024] In one embodiment, the control assembly includes a first control handle and a second control handle, the two ends of the first control handle being connected to the first transverse blade and the third transverse blade, respectively, and the two ends of the second control handle being connected to the second transverse blade and the fourth transverse blade, respectively.

[0025] In one embodiment, the adsorption assembly includes a plurality of suction cups disposed on the lower surface of the tooling substrate.

[0026] In one embodiment, a flexible protective structure is provided around the tooling base.

[0027] In one embodiment, the tooling base is configured as a plate-like structure; and / or,

[0028] The tooling base is configured as a quadrilateral structure; and / or

[0029] The material of the tooling substrate is configured as a plastic material.

[0030] Based on the aforementioned suction and cutting fixture, when photovoltaic modules are stacked, the suction and cutting fixture can be fastened onto the cell to be replaced. The cutting component can be aligned with the edge of the cell. The movement of the cutting component is controlled by the control component. As the suction component holds the cell and moves upward, the cutting components around the cell can move downward simultaneously to cut the adhesive film. When the suction and cutting fixture is lifted upward, the cell and adhesive film can be held by the suction component. At this point, the cell and adhesive film can be removed, achieving a quick cell replacement without affecting the welding quality and efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram showing the distribution of the positive electrode grid, negative electrode grid, and contact points of a battery cell in a back contact battery according to an embodiment of this application.

[0032] Figure 2 This is a schematic planar structure diagram of a tensile test sample of a back-contact battery cell provided in one embodiment of this application.

[0033] Figure 3 This is a three-dimensional structural schematic diagram of a tensile test sample of a back-contact battery cell provided in one embodiment of this application.

[0034] Figure 4 This is a schematic diagram showing the position of a single cell in a back-contact battery according to one embodiment of this application.

[0035] Figure 5 This is a three-dimensional structural diagram of a suction and cutting tool provided in one embodiment of this application.

[0036] Figure 6 This is a side view of a suction and cutting tool provided in one embodiment of this application.

[0037] Figure 7 This is a top view of a suction and cutting tool provided in one embodiment of this application.

[0038] Icon labels:

[0039] 100. Solar cell; 200. Solder strip; 300. Positive electrode grid; 400. Negative electrode grid; 500. Contact point; 501. Positive electrode contact point; 502. Negative electrode contact point;

[0040] 1000, Tooling base; 2000, Adsorption assembly; 3000, Cutting assembly; 4000, Control assembly;

[0041] 3100, transverse tool set; 3200, longitudinal tool set;

[0042] 3110, First horizontal cutter group; 3120, Second horizontal cutter group;

[0043] 3111, First pivot seat; 3112, First transverse blade; 3113, Second transverse blade;

[0044] 3121. Second pivot seat; 3122. Third transverse blade; 3123. Fourth transverse blade;

[0045] 3210, First longitudinal blade; 3220, Second longitudinal blade;

[0046] 3211, First sliding convex shaft; 3212, First linear sliding hole; 3221, Second sliding convex shaft; 3222, Second linear sliding hole;

[0047] 4100, First control handle; 4200, Second control handle. Detailed Implementation

[0048] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0049] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0050] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0054] The unique design of the back-contact battery lies in the fact that the electrodes of both the emitter and base regions of the cell 100 are located on the back, thus achieving a completely unobstructed effect on the front side (no grid lines (positive fine grid 300 and negative fine grid 400)). Against the backdrop of cost reduction and efficiency improvement in the photovoltaic industry, in addition to controlling material costs, the requirements for cost reduction in manufacturing processes are also constantly increasing. In the front-end processes of photovoltaic module manufacturing, the welding process mainly involves welding the solder strip 200 to the main grid lines, leading out the positive and negative electrodes of the cell 100.

[0055] Infrared welding is a widely used welding process, which has seen rapid development due to its excellent temperature control and rapid response, stable performance, and high welding efficiency. However, infrared welding also has drawbacks such as full-surface heating and significant warpage, making it unsuitable for some precision manufacturing requirements. In the context of cost reduction and efficiency improvement, traditional welding methods are finding it increasingly difficult to adapt to new production requirements in terms of precision, processing efficiency, reliability, and applicability, thus hindering large-scale cost reductions in the manufacturing process.

[0056] Laser welding is widely used in manufacturing. It utilizes the high energy density of a laser beam to heat materials to a molten or vaporized state, thereby achieving material joining. In the photovoltaic industry, laser welding is mainly used for joining the 200mm welding strip to the 100 PAD points (500mm contact points) of the solar cell. It is compatible with high-efficiency cell technologies such as PERC, TOPCon, HJT, and BC, aligning perfectly with the production needs of the photovoltaic industry.

[0057] See Figure 1As shown, for back contact batteries (BC batteries), since both the positive and negative electrodes are located on the back of the battery cell 100 and arranged in an interdigitated pattern, with no grid lines on the front, laser welding can be performed using a full-plate welding method, which can greatly improve production efficiency. Furthermore, because laser welding is a single-point welding process, it offers high welding power and concentrated welding energy. Therefore, single-point laser welding can be used.

[0058] The specific laser welding process is as follows: Step 1, first lay the glass and the front adhesive film on the prepared table; Step 2, arrange the battery cells 100 on the front adhesive film, with the back of the battery cells 100 (i.e., the welding surface) facing upwards; Step 3, place the welding ribbon 200 and the busbar on the battery cells 100 according to the welding requirements; Step 4, first weld the welding ribbon 200 on the busbar; Step 5, cover with the laser adhesive film, and draw a vacuum to make the distance between the welding ribbon 200 and the PAD point (contact point 500) of the battery cell 100 as close as possible to ensure the welding effect; Step 6, the laser welds the welding ribbon 200 to the PAD point (contact point 500) of the battery cell 100 through single-point welding. After welding is completed, the silicone film can be lifted.

[0059] In the aforementioned welding process, defects such as microcracks and broken cells in the cells may occur due to poor incoming materials or issues during transportation, such as poor cell alignment, module vacuum negative pressure, or improper fixing of the welding strip. Detection methods are needed to identify these defects. PL (photonic injection) detection is used after busbar welding, and EL (electrical injection) detection is used after laser welding. These methods can accurately identify defects in the module before welding and allow for rework.

[0060] Before laser welding of a complete panel, the welding tensile strength needs to be tested. Since a full panel assembly cannot be subjected to tensile strength testing, a small-scale tensile strength test sample must be prepared first. (See also...) Figure 2 and Figure 3 As shown, the tensile test sample can be composed of two batteries. Use transparent tape to fix the welding strip 200 to the battery and then weld it on the equipment. After welding, test the tensile strength of the sample.

[0061] See Figure 4 As shown, if a defect is found before the entire plate is welded, the defective battery cell 100 and the solder strip 200 on the battery at that location need to be removed for rework. Improving the efficiency and quality of rework is currently a challenge, which not only requires high personnel skills but also seriously affects the production capacity of the entire welding line.

[0062] For the laser welding process of photovoltaic modules, if defective cells are removed and repaired manually, it not only requires highly skilled repair personnel, but also affects the overall production efficiency of the line, which is a major pain point on the road from R&D to mass production.

[0063] For example, before laser welding, it is necessary to test the welding tensile strength. Since the tensile strength cannot be tested for welding the entire plate, it is necessary to make additional tensile strength test samples. However, tensile strength testing also requires multiple tests. It is necessary to determine whether to continue making samples for testing based on the test results. The current string welding machine tests the welding tensile strength of the entire string, which not only wastes a lot of batteries and welding strips, but this method is not suitable for welding the entire plate.

[0064] In addition to making welding tensile test samples, the rework of the entire welding plate is also a current production bottleneck. Welding a plate of components takes 3-5 minutes, while reworking a single cell takes more than 20 minutes. During rework, there is a risk of secondary crushing of the cell. In order to improve the efficiency and quality of rework, rework samples can be prepared in advance to achieve rapid replacement. As for the quality of the rework samples, tooling is needed to improve it.

[0065] Therefore, tensile testing and rework are not only pain points for the entire production line, but also significant challenges to improving production efficiency. To address these issues, please refer to... Figures 5 to 7 As shown, this application provides a suction and cutting fixture, which includes a fixture base 1000, a suction component 2000, a cutting component 3000, and a control component 4000. The fixture base 1000 serves as the assembly foundation for the suction component 2000, the cutting component 3000, and the control component 4000. The fixture base 1000 can be configured as any regular or irregular shape, such as a plate or a block.

[0066] For example, in one embodiment, the tooling base 1000 is configured as a plate-like structure, and the tooling base 1000 is configured as a quadrilateral structure, such as a rectangle or a square. Meanwhile, the material of the tooling base 1000 can also be configured as a plastic material, and a flexible protective structure can be provided around the tooling base 1000. The flexible protective structure, for example, is made of a soft, smooth material, which can prevent the battery cell from being accidentally touched and cracked during use, and at the same time protect the battery cell from being scratched. Those skilled in the art can configure the tooling base 1000 according to actual needs, and no limitation is made here.

[0067] Continue reading Figure 6 As shown, the adsorption component 2000 is disposed on the tooling substrate 1000. The adsorption component 2000 can be used to adsorb target objects, such as battery cells and adhesive films. The adsorption component 2000 can employ various adsorption methods. For example, in one embodiment, the adsorption component 2000 may include a plurality of suction cups disposed on the lower surface of the tooling substrate 1000. The number of suction cups and their distribution on the tooling substrate 1000 can be designed according to the shape and size of the tooling substrate 1000, thereby achieving effective adsorption of the target object. No limitation is made here.

[0068] Continue reading Figures 5 to 7As shown, the cutting component 3000 is disposed on the tooling base 1000. The cutting component 3000 is mainly used for cutting the target object, namely cutting the battery cell and the adhesive film. Therefore, the cutting component 3000 needs to be specifically designed according to the shape, size, etc. of the target object so that the cutting component 3000 can be adapted to the target object to be cut and successfully complete the cutting.

[0069] For example, the cutting assembly 3000 may include a transverse blade assembly 3100 and a longitudinal blade assembly 3200. The transverse blade assembly 3100 is movably mounted to the tooling base 1000, while the longitudinal blade assembly 3200 may be selectively movably mounted to at least one of the tooling base 1000 and the transverse blade assembly 3100, depending on requirements. For example, the longitudinal blade assembly 3200 may also be movably mounted to the tooling base 1000, or the longitudinal blade assembly 3200 may be movably mounted to the transverse blade assembly 3100. In this case, a control assembly 4000 may be connected to the cutting assembly 3000, and the control assembly 4000 is configured to control the movement of the cutting assembly 3000 relative to the tooling base 1000.

[0070] In one embodiment, the longitudinal blade assembly 3200 is movably mounted on the transverse blade assembly 3100. A control component 4000 is connected to the transverse blade assembly 3100 and configured to control the movement of the transverse blade assembly 3100 relative to the tooling base 1000. Simultaneously, the transverse blade assembly 3100 drives the longitudinal blade assembly 3200 to move relative to the tooling base 1000, thereby indirectly controlling the movement of the longitudinal blade assembly 3200 relative to the tooling base 1000. Regarding the assembly of the transverse blade assembly 3100 and the longitudinal blade assembly 3200 of the cutting assembly 3000 on the tooling base 1000, those skilled in the art can choose according to actual needs, and no limitation is made here.

[0071] Continue reading Figures 5 to 7 As shown, in one embodiment, the transverse blade assembly 3100 may include a first transverse blade assembly 3110 and a second transverse blade assembly 3120. The first transverse blade assembly 3110 and the second transverse blade assembly 3120 are respectively disposed at opposite ends of the tooling base 1000 in the transverse direction, thereby forming a mutual alignment at the opposite ends of the tooling base 1000 in the transverse direction. When the tooling base 1000 corresponds to a battery cell and an adhesive film, the first transverse blade assembly 3110 and the second transverse blade assembly 3120 can be used to cut the opposite ends of the battery cell and the adhesive film in the transverse direction.

[0072] The first transverse blade assembly 3110 may include a first rotating shaft seat 3111, a first transverse blade 3112, and a second transverse blade 3113. The first rotating shaft seat 3111 is disposed on the tooling base 1000, and the first transverse blade 3112 and the second transverse blade 3113 are rotatably connected to each other through the first rotating shaft seat 3111. For example, the first transverse blade 3112 and the second transverse blade 3113 may both be hinged to the first rotating shaft seat 3111 through a hinge structure, so that the first transverse blade 3112 and the second transverse blade 3113 can rotate based on the first rotating shaft seat 3111, thereby realizing the cutting of battery cells and adhesive films.

[0073] Meanwhile, the second transverse blade assembly 3120 includes a second pivot seat 3121, a third transverse blade 3122, and a fourth transverse blade 3123. The second pivot seat 3121 is disposed on the tooling base 1000, and the third transverse blade 3122 and the fourth transverse blade 3123 are rotatably connected to each other through the second pivot seat 3121. For example, the third transverse blade 3122 and the fourth transverse blade 3123 can both be hinged to the second pivot seat 3121 through a hinge structure, so that the third transverse blade 3122 and the fourth transverse blade 3123 can rotate based on the second pivot seat 3121, thereby realizing the cutting of battery cells and adhesive films.

[0074] In one embodiment, the control component 4000 may include a first control handle 4100 and a second control handle 4200. The two ends of the first control handle 4100 are connected to the first transverse blade 3112 and the third transverse blade 3122, respectively, and the two ends of the second control handle 4200 are connected to the second transverse blade 3113 and the fourth transverse blade 3123, respectively. Alternatively, the control component 4000 may employ other structures or methods to control the first transverse blade group 3110 and the second transverse blade group 3120, such as electronic control. Those skilled in the art can design according to actual needs, and no limitations are imposed here.

[0075] Continue reading Figures 5 to 7 As shown, in one embodiment, the longitudinal blade assembly 3200 includes a first longitudinal blade 3210 and a second longitudinal blade 3220. The first longitudinal blade 3210 and the second longitudinal blade 3220 are respectively disposed at opposite ends of the longitudinal direction of the tooling base 1000, thereby forming a mutual alignment at the two ends of the longitudinal direction of the tooling base 1000. When the tooling base 1000 corresponds to a battery cell and an adhesive film, the first longitudinal blade 3210 and the second longitudinal blade 3220 can be used to cut the opposite ends of the longitudinal direction of the battery cell and the adhesive film.

[0076] The first longitudinal blade 3210 has its two ends movably connected to the first transverse blade 3112 and the third transverse blade 3122, respectively, and the second longitudinal blade 3220 has its two ends movably connected to the second transverse blade 3113 and the fourth transverse blade 3123, respectively. For example, the two ends of the first longitudinal blade 3210 are hinged to the first transverse blade 3112 and the third transverse blade 3122 via hinge structures, and the two ends of the second longitudinal blade 3220 are hinged to the second transverse blade 3113 and the fourth transverse blade 3123 via hinge structures.

[0077] For example, in one embodiment, the first longitudinal blade 3210 is provided with first sliding cams 3211 at both ends, and the first transverse blade 3112 and the third transverse blade 3122 are both provided with first linear sliding holes 3212. The two first sliding cams 3211 of the first longitudinal blade 3210 are respectively slidably assembled in the two first linear sliding holes 3212 of the first transverse blade 3112 and the third transverse blade 3122.

[0078] Similarly, the second longitudinal blade 3220 is provided with second sliding convex shafts 3221 at both ends, and the second transverse blade 3113 and the fourth transverse blade 3123 are both provided with second linear sliding holes 3222. The two second sliding convex shafts 3221 of the second longitudinal blade 3220 are respectively slidably assembled in the two second linear sliding holes 3222 of the second transverse blade 3113 and the fourth transverse blade 3123.

[0079] Thus, the first longitudinal blade 3210 and the second longitudinal blade 3220 of the longitudinal blade assembly 3200 can be movably mounted on the transverse blade assembly 3100. At this time, the control component 4000 controls the transverse blade assembly 3100 to move relative to the tooling base 1000. The transverse blade assembly 3100 can then synchronously drive the first longitudinal blade 3210 and the second longitudinal blade 3220 of the longitudinal blade assembly 3200 to move relative to the tooling base 1000. The control component 4000 can thus indirectly control the movement of the longitudinal blade assembly 3200 relative to the tooling base 1000, thereby using the first longitudinal blade 3210 and the second longitudinal blade 3220 to cut the battery cell and the adhesive film.

[0080] The first horizontal blade group 3110, the second horizontal blade group 3120, the first vertical blade 3210, and the second vertical blade 3220 can thus surround the battery cell and the adhesive film. Therefore, when the first horizontal blade group 3110 and the second horizontal blade group 3120 are responsible for cutting the horizontally opposite ends of the battery cell and the adhesive film, and the first vertical blade 3210 and the second vertical blade 3220 are responsible for cutting the vertically opposite ends of the battery cell and the adhesive film, the surrounding areas of the battery cell and the adhesive film can be cut, thereby achieving overall cutting of the battery cell and the adhesive film.

[0081] Continue reading Figure 5As shown, in one embodiment, the cutting edge length of the first longitudinal blade 3210 is greater than the linear distance between the two first sliding cams 3211 of the first longitudinal blade 3210. Therefore, the cutting edge length of the first longitudinal blade 3210 can compensate for the gaps between the first longitudinal blade 3210 and the first transverse blade 3112 and the third transverse blade 3122. The cutting edge length of the second longitudinal blade 3220 is greater than the linear distance between the two second sliding cams 3221 of the second longitudinal blade 3220. Therefore, the cutting edge length of the second longitudinal blade 3220 can compensate for the gaps between the second longitudinal blade 3220 and the second transverse blade 3113 and the fourth transverse blade 3123. Furthermore, at least one of the first transverse blade 3112, the second transverse blade 3113, the third transverse blade 3122, and the fourth transverse blade 3123 has an arc-shaped cutting edge.

[0082] In summary, when photovoltaic modules are stacked, the suction and cutting fixture provided in this application can be attached to the cell to be replaced. The cutting component 3000 can be aligned with the edge of the cell. The movement of the cutting component 3000 is controlled by the control component 4000. As the suction component 2000 holds the cell and moves upward, the cutting components 3000 around the cell can move downward simultaneously to cut the adhesive film. When the suction and cutting fixture is lifted upward, the cell and adhesive film can be held by the suction component 2000. At this time, the cell and adhesive film can be removed, achieving a quick cell replacement without affecting the welding quality and efficiency.

[0083] It should be noted that during the use of the suction cutting fixture, it is necessary to keep it clean and regularly inspect and maintain the cutting component 3000 to ensure its normal operation and prevent problems such as the cutting component 3000 becoming dull and unable to cut the adhesive film. By using the suction cutting fixture, the time for changing solar cells can be significantly reduced and the quality of rework can be improved, effectively solving problems such as slow cell changing speed, low rework quality, and easy damage to adjacent solar cells in laser welding components.

[0084] The existing laser welding process for photovoltaic modules mainly involves personnel cutting and removing defective cells and encapsulant films together for rework. This not only places high demands on the rework personnel but also affects the overall production efficiency, rework quality, and first-pass yield of the entire line, making it a major bottleneck for increasing production capacity.

[0085] The suction cutting fixture provided in this application can effectively solve the problem of microcracks and cell breakage caused by collisions with adjacent cells during the rework process, and also solves the problem of high difficulty in replacing the adhesive film under the reworked cells, reducing rework time and increasing module rework speed and capacity. Furthermore, it reduces manual labor steps in the welding process, improves quality, and increases the first-time success rate of rework.

[0086] Furthermore, the suction and cutting tool of this application is not only applicable to the manufacture of solar cells, but also to the manufacture of other types of cells, and has a wide range of applications, which are not limited here.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A suction cutting tool characterized by comprising: The suction cutting fixture includes: Tooling base (1000); Adsorption component (2000), the adsorption component (2000) is disposed on the tooling substrate (1000); A cutting assembly (3000) is disposed on the tooling base (1000). The cutting assembly (3000) includes a transverse blade assembly (3100) and a longitudinal blade assembly (3200). The transverse blade assembly (3100) is movably mounted on the tooling base (1000), and the longitudinal blade assembly (3200) is movably mounted on at least one of the tooling base (1000) and the transverse blade assembly (3100). A control component (4000) is connected to the cutting component (3000) and is configured to control the movement of the cutting component (3000) relative to the tooling base (1000).

2. The suction cutting tool according to claim 1, wherein The longitudinal blade assembly (3200) is movably mounted on the transverse blade assembly (3100). The control component (4000) is connected to the transverse blade assembly (3100), and the control component (4000) is configured to control the movement of the transverse blade assembly (3100) relative to the tooling base (1000); The transverse cutter group (3100) drives the longitudinal cutter group (3200) to move relative to the tooling base (1000), thereby the control component (4000) indirectly controls the movement of the longitudinal cutter group (3200) relative to the tooling base (1000).

3. The suction cutting tool according to claim 2, wherein The transverse blade assembly (3100) includes a first transverse blade assembly (3110) and a second transverse blade assembly (3120), wherein the first transverse blade assembly (3110) and the second transverse blade assembly (3120) are respectively disposed at opposite ends of the tooling base (1000) in the transverse direction; The first transverse blade assembly (3110) includes a first pivot seat (3111), a first transverse blade (3112), and a second transverse blade (3113). The first pivot seat (3111) is disposed on the tooling base (1000). The first transverse blade (3112) and the second transverse blade (3113) are rotatably connected to each other through the first pivot seat (3111). The second transverse blade assembly (3120) includes a second pivot seat (3121), a third transverse blade (3122), and a fourth transverse blade (3123). The second pivot seat (3121) is disposed on the tooling base (1000), and the third transverse blade (3122) and the fourth transverse blade (3123) are rotatably connected to each other through the second pivot seat (3121).

4. The suction cutting tool according to claim 3, wherein The longitudinal blade assembly (3200) includes a first longitudinal blade (3210) and a second longitudinal blade (3220), wherein the first longitudinal blade (3210) and the second longitudinal blade (3220) are respectively disposed at opposite ends of the tooling base (1000) in the longitudinal direction; The two ends of the first longitudinal blade (3210) are movably connected to the first transverse blade (3112) and the third transverse blade (3122), respectively, and the two ends of the second longitudinal blade (3220) are movably connected to the second transverse blade (3113) and the fourth transverse blade (3123), respectively.

5. The suction cutting tool according to claim 4, wherein The first longitudinal blade (3210) has first sliding convex shafts (3211) at both ends. The first transverse blade (3112) and the third transverse blade (3122) both have first linear sliding holes (3212). The two first sliding convex shafts (3211) of the first longitudinal blade (3210) are slidably fitted into the two first linear sliding holes (3212) of the first transverse blade (3112) and the third transverse blade (3122), respectively; and / or, The second longitudinal blade (3220) is provided with a second sliding cam (3221) at both ends. The second transverse blade (3113) and the fourth transverse blade (3123) are both provided with a second linear sliding hole (3222). The two second sliding cams (3221) of the second longitudinal blade (3220) are respectively slidably assembled in the two second linear sliding holes (3222) of the second transverse blade (3113) and the fourth transverse blade (3123).

6. The suction cutting tool according to claim 5, wherein The cutting edge length of the first longitudinal blade (3210) is greater than the linear distance between the two first sliding cams (3211) of the first longitudinal blade (3210); and / or, The cutting edge length of the second longitudinal blade (3220) is greater than the linear distance between the two second sliding cams (3221) of the second longitudinal blade (3220); and / or, At least one of the first transverse blade (3112), the second transverse blade (3113), the third transverse blade (3122), and the fourth transverse blade (3123) has an arc-shaped blade.

7. The suction cutting tool according to claim 3, wherein The control assembly (4000) includes a first control handle (4100) and a second control handle (4200). The two ends of the first control handle (4100) are respectively connected to the first transverse blade (3112) and the third transverse blade (3122), and the two ends of the second control handle (4200) are respectively connected to the second transverse blade (3113) and the fourth transverse blade (3123).

8. The suction cutting tool according to claim 1, wherein The adsorption assembly (2000) includes a plurality of suction cups, which are disposed on the lower surface of the tooling base (1000).

9. The suction cutting tool according to claim 1, wherein A flexible protective structure is provided around the tooling base (1000).

10. The suction and cutting fixture according to claim 1, characterized in that, The tooling base (1000) is configured as a plate-like structure; and / or, The tooling base (1000) is configured as a quadrilateral structure; and / or, The tooling base (1000) is made of a plastic material.

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