Battery piece anti-bending device, battery string carrying equipment and battery piece fixing and anti-bending assembly

Abstract

The utility model provides a battery piece anti-bending device, battery string carrying equipment and a battery piece fixing anti-bending assembly. The battery piece anti-curving device comprises a pressing structure; the driving structure is connected with the downward pressing structure, and the driving structure is used for pushing the downward pressing structure to downwards press the battery piece; and the adsorption structure is arranged on at least one side of the downward pressing structure and is used for abutting against one surface of the battery piece. Thus, according to the battery piece anti-bending device, the downward pressing structure is arranged, downward pressing anti-bending can be conducted on the protruding part of the welded battery piece, meanwhile, the adsorption structure abuts against one surface of the battery piece, and therefore excessive warping of the side portion of the battery piece caused when the downward pressing structure presses the battery piece can be relieved; therefore, the warping of the battery piece after welding is reduced.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a solar cell inversion device, a solar cell string transport device, and a solar cell fixing inversion component. Background Technology

[0002] In battery modules, due to the different materials of the solder ribbon and the battery cell, the battery cell will warp due to the welding stress after welding, causing the two ends of the battery cell to curl up and the middle part of the battery cell to bulge out.

[0003] Therefore, how to reduce warping after battery cell welding has become an urgent problem to be solved. Utility Model Content

[0004] This invention provides a battery cell inversion device, a battery string transport device, and a battery cell fixing inversion assembly to reduce the risk of microcracks and fragmentation that may occur in battery cells that are warped after welding during lamination.

[0005] The present invention is implemented as follows: the present invention provides a battery cell recurving device, a battery string transport device, and a battery cell fixing recurving assembly.

[0006] In a first aspect, the present invention provides a battery cell recurving device, the battery cell recurving device comprising: a pressing structure; a driving structure connected to the pressing structure, the driving structure being used to push the pressing structure toward the battery cell; and an adsorption structure disposed on at least one side of the pressing structure, the adsorption structure being used to abut against one surface of the battery cell.

[0007] Furthermore, the adsorption structure is a stretchable adsorption structure.

[0008] Furthermore, the adsorption structure includes a suction cup and a telescopic component, with one end of the telescopic component connected to the suction cup.

[0009] Furthermore, the deformable length of the suction cup in the thickness direction is 1mm to 4mm.

[0010] Furthermore, the adsorption structure also includes a protective shell, and the telescopic member is housed within the protective shell.

[0011] Furthermore, it also includes a connecting rod, one end of which is connected to the driving structure and the other end of which is connected to the pressing structure. The driving structure pushes the pressing structure toward the battery cell through the connecting rod.

[0012] Furthermore, the pressing structure includes a pressing part and a buffer part stacked together. The pressing part is connected to the other end of the connecting rod, and the buffer part is located on the side of the pressing part facing away from the connecting rod. The hardness of the pressing part is greater than that of the buffer part.

[0013] Furthermore, the deformable distance of the pressing part in the thickness direction is 0.5mm to 1.5mm.

[0014] Furthermore, it also includes a fixing structure, one end of which is connected to the fixing structure.

[0015] Secondly, this utility model embodiment also provides a battery string transport device that suspends and transports a battery string from one workstation to the next workstation. The battery string includes multiple battery cells connected by welding strips and includes the battery cell recurving device described in the first aspect.

[0016] Thirdly, this utility model embodiment also provides a battery cell fixing and recurving assembly, including a support platform and the battery cell recurving device described in the first aspect; the battery cell recurving device is disposed opposite to the support platform, and the support platform is used to support the battery.

[0017] Thus, the solar cell bending device in this application, by providing a pressing structure, can press down and bend the protruding part of the welded solar cell. At the same time, by using an adsorption structure to hold against one surface of the solar cell, it can alleviate the excessive warping of the side of the solar cell caused by the pressing structure pressing down on the solar cell, thereby reducing the warping of the solar cell after welding. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the battery cell bending device provided in one embodiment of the present invention before pressing down the battery cell;

[0020] Figure 2 This is a schematic diagram of the structure of the battery cell bending device provided in one embodiment of the present invention during the pressing process of the battery cell;

[0021] Figure 3 This is a schematic diagram of the structure of the battery cell bending device provided in another embodiment of the present invention before pressing down the battery cell;

[0022] Figure 4 This is a schematic diagram of the structure of the battery cell bending device after pressing down the battery cell according to another embodiment of the present invention.

[0023] Explanation of main component symbols: 100, cell recurving device; 200, cell; 10, pressing structure; 20, driving structure; 30, adsorption structure; 40, connecting rod; 50, fixing structure; 60, suction tube; 11, pressing part; 12, buffer part; 31, suction cup; 32, telescopic part; 33, protective shell. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model. Furthermore, it should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "top", "bottom", "lateral", "longitudinal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. 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. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0029] The accompanying drawings provided by this utility model are schematic diagrams, and some elements are not shown in the drawings. The purpose is to clearly describe the technical solution and highlight the key points of the utility model. It is not intended to limit the technical solution to exclude these unshown elements. That is to say, the drawings are only examples and do not represent a limitation on the specific form of the battery cell recurving device 100.

[0030] like Figures 1 to 4 As shown, the battery cell recurving device 100 in this embodiment of the present invention includes: a pressing structure 10, a driving structure 20, and an adsorption structure 30. The driving structure 20 is connected to the pressing structure 10 and is used to push the pressing structure 10 towards the battery cell; the adsorption structure 30 is disposed on at least one side of the pressing structure 10 and is used to abut against one surface of the battery cell 200.

[0031] Thus, the battery cell bending device 100 in this application, by providing a pressing structure 10, can press down and bend the protruding part of the welded battery cell 200, while the adsorption structure 30 abuts against one surface of the battery cell 200, thereby alleviating the excessive warping of the side of the battery cell 200 caused by the pressing structure 10 pressing down on the battery cell 200, thereby reducing the warping of the battery cell 200 after welding.

[0032] It is understandable that during the battery module manufacturing process, after the user applies solder ribbons to one or two sides of the battery cell 200, the middle part of the battery cell 200 will bulge due to the tension of the solder ribbons, and the two sides of the battery cell 200 will warp towards the opposite side of the bulge, forming an arched surface. Therefore, to avoid warping of the battery cell 200 after welding, which could cause microcracks and fragmentation during subsequent handling and lamination, the battery cell anti-bending device 100 in this utility model can anti-bend the welded battery cell 200, thereby reducing warping after welding and thus reducing the risk of microcracks and fragmentation of the battery cell 200 during handling and lamination in battery module manufacturing.

[0033] In some embodiments, the solar cell 200 can be a back-contact cell, which includes a substrate having a front side facing the sun during normal operation and a back side opposite to the front side, the front side being the light-receiving surface; the back side is located on the opposite side of the substrate relative to the front side, that is, the aforementioned front side and back side are located on different sides of the substrate and are opposite to each other. The substrate is generally an N-type monocrystalline silicon wafer. It is understood that in other embodiments, the substrate can also be other types of silicon wafers such as polycrystalline silicon wafers or quasi-monocrystalline silicon wafers, and the substrate type can also be set to P-type. The substrate is set according to the actual use needs, and no specific limitation is made here.

[0034] Since the positive and negative terminals of a back-contact battery are both located on the back side of the battery, during the production process of a back-contact battery, the battery cell 200 is rectangular. When multiple battery cells 200 are arranged, they are arranged sequentially along the short side (i.e., the width of the rectangle). The solder strip is perpendicular to the long side and parallel to the short side of the battery cell 200 on the upper surface of the battery cell 200. After welding, due to the different materials of the solder strip and the battery cell 200, their shrinkage ratios are different. Furthermore, because it is a single-sided welding process, the welding stress causes the battery cell 200 to bend towards the side with the solder strip. The two long sides of the battery cell 200 move upwards and towards the middle, forming a concave curve with the opening of the curve facing upwards.

[0035] In some embodiments, the battery cell 200 pressed down by the battery cell bending device 100 may also be a double-sided welded battery, that is, welding strips are provided on both opposite sides of the battery cell 200.

[0036] like Figure 1 and Figure 4As shown, the solar cell bending device 100 specifically includes a pressing structure 10, which is used to press down the solar cell 200. When using the solar cell bending device 100, the pressing structure 10 is positioned opposite to the solar cell 200; for example, the solar cell 200 can be positioned below the pressing structure 10. When the solar cell bending device 100 bends the solar cell 200, the pressing structure 10 is positioned towards the protruding portion of the solar cell 200. In other words, when the solar cell bending device 100 bends the solar cell 200, the pressing structure 10 is positioned above the protruding portion of the solar cell 200. In some embodiments, the pressing structure 10 may be positioned corresponding to the highest protrusion of the battery cell 200, for example, directly above the middle portion of the battery cell 200. This allows the pressing structure 10 to press down on the curved protrusion of the battery cell 200, minimizing the degree of curvature of the battery cell 200. In some embodiments, the pressing structure 10 may also be positioned corresponding to a flatter protrusion of the battery cell 200, or it may be positioned diagonally above the middle portion of the battery cell 200. In this case, the downward pressure exerted on the battery cell 200 by the pressing structure 10 is less, thereby reducing the risk of microcracks in the battery cell 200 due to the pressing.

[0037] like Figure 1 and Figure 3 As shown, further, before the battery cell bending device 100 bends the battery cell 200, the distance D1 between the pressing structure 10 and the protruding portion of the battery cell 200 in the thickness direction of the battery cell 200 can be set to 0.5mm to 2mm. For example, it can be 0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, or 2mm. In this way, sufficient bending force can be provided to the battery cell 200 while avoiding excessive force exerted by the pressing structure 10 on the battery cell 200, which could cause the battery cell 200 to bend or develop microcracks. Preferably, when the battery cell bending device 100 bends the battery cell 200, the distance D1 between the pressing structure 10 and the protruding portion of the battery cell 200 in the height direction of the battery cell bending device 100 can be set to 1mm, at which time the bending effect of the pressing structure 10 on the battery cell 200 is optimal.

[0038] Specifically, the solar cell bending device 100 further includes a drive structure 20. The drive structure 20 is connected to the pressing structure 10. When the solar cell bending device 100 bends the solar cell 200, the drive structure 20 can push the pressing structure 10 towards the solar cell 200 to bend it. Of course, after bending is complete, the drive structure 20 can drive the pressing structure 10 to move away from the solar cell 200. Specifically, the drive structure 20 can drive the pressing structure 10 to reciprocate along the thickness direction of the solar cell bending device 100. In other words, the drive structure 20 can drive movement towards or away from the solar cell 200.

[0039] For example, the drive structure 20 may specifically be a cylinder or a drive motor.

[0040] Furthermore, the cell bending device 100 also includes a connecting rod 40, one end of which is connected to the drive structure 20 and the other end of which is connected to the pressing structure 10. The drive structure 20 pushes the pressing structure 10 toward the cell 200 through the connecting rod 40.

[0041] In some embodiments, the drive structure 20 pushes the pressing structure 10 toward the battery cell 200 via the connecting rod 40, which can cause the battery cell 200 to bend in the opposite direction of welding stress bending.

[0042] The connecting rod 40 specifically connects the drive structure 20 and the pressing structure 10. When the cell bending device 100 bends the cell 200, the drive structure 20 can drive the pressing structure 10 towards the cell 200 by driving the connecting rod 40. At the same time, the drive structure 20 can also drive the pressing structure 10 away from the cell 200 by driving the connecting rod 40.

[0043] Therefore, in the cell recurving device 100, the connecting rod 40 can be used to transmit the output force of the drive structure 20 to the pressing structure 10, thereby causing the pressing structure 10 to move away from or toward the cell 200.

[0044] Specifically, the solar cell bending device 100 further includes an adsorption structure 30, which is disposed on at least one side of the pressing structure 10. The adsorption structure 30 can be disposed on one side or both sides of the pressing structure 10. When bending the welded solar cell 200, the adsorption structure 30 can be positioned to align with the warped side of the solar cell 200.

[0045] Furthermore, there can be two adsorption structures 30, which can be disposed on both sides of the pressing structure 10. The two adsorption structures 30 are a first adsorption structure 30 and a second adsorption structure 30, respectively. The first adsorption structure 30 abuts against one side of the warped solar cell 200, and the second adsorption structure 30 abuts against the other side of the warped solar cell 200. In other words, the pressing structure 10 is located between the two adsorption structures 30. When the solar cell 200 is bent backwards, two adsorption structures 30 can be respectively disposed on both sides of the warped solar cell 200.

[0046] Preferably, the first adsorption structure 30 and the second adsorption structure 30 are symmetrically arranged with respect to the pressing structure 10. In this way, during the bending process of the battery cell 200, the adsorption force of the adsorption structure 30 on the battery cell 200 is more uniform, avoiding excessive warping of the battery cell 200 during the bending process, thereby improving the flatness of the battery cell 200.

[0047] Understandably, when the pressing structure 10 presses down on the protruding portion of the welded battery cell 200, both sides of the battery cell 200 will warp towards the pressing structure 10. Therefore, to avoid excessive warping of the sides of the battery cell 200, the adsorption structures 30 on both sides abut against one side of the battery cell 200, thereby preventing excessive warping of the sides of the battery cell 200 and increasing the flatness of the battery cell 200.

[0048] Before the cell bending device 100 begins bending the cell 200, a pressing structure 10 can be set to abut against at least one side of the cell 200, and the pressing structure 10 is set at a certain distance from the cell 200. Then, by driving the driving structure 20, the pressing structure 10 is pushed towards the cell 200, thereby pressing down on the protruding portion of the cell 200. Furthermore, by using two adsorption structures 30 to adsorb and abut against both sides of the cell 200, excessive warping of the sides of the cell 200 can be prevented. Therefore, through the cooperation of the pressing structure 10 and the adsorption structure 30 in the cell bending device 100, the welded cell 200 can be bent, improving the flatness of the cell 200 and reducing the risk of microcracks and fragmentation during the battery module manufacturing process.

[0049] Furthermore, the adsorption structure 30 is a stretchable adsorption structure 30. In this way, it can provide a certain buffer for the warping of both sides of the solar cell 200, effectively alleviate the stress concentration problem caused by rigid pressure on the sides of the solar cell 200 during the straightening process, and thus further avoid microcracks and fragmentation of the solar cell 200.

[0050] Furthermore, the adsorption structure 30 includes a suction cup 31 and a telescopic member 32. One end of the telescopic member 32 is connected to the suction cup 31, and the telescopic member 32 can extend and retract to move the telescopic suction cup 31 closer to or further away from the battery cell 200. In this way, a certain buffer can be provided for the warping of the two sides of the battery cell 200.

[0051] It is understood that one end of the telescopic component 32 is connected to the suction cup 31, and the other end of the telescopic component 32 is connected to the telescopic component 32. When the battery cell 200 is bent backward, the suction cup 31 adsorbs one side of the battery cell 200 to prevent excessive warping of the battery cell 200. The telescopic movement of the telescopic component 32 provides a certain buffer for excessive warping of the battery cell 200, further reducing the risk of microcracks and fragments in the battery cell 200.

[0052] Furthermore, the suction cup 31 is a deformable suction cup 31, and the deformable length of the suction cup 31 in the thickness direction is 1mm to 4mm. For example, it is 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, or 4mm. In this way, further buffering can be provided between the battery cell 200 and the adsorption structure 30, further reducing the risk of microcracks and fragmentation of the battery cell 200.

[0053] Preferably, the suction cup 31 can be a multi-layer suction cup 31. It is understood that after the battery cell 200 is welded, the side of the battery cell 200 is inclined, and the side of the battery cell 200 has a certain angle with the adsorption structure 30. By setting up the multi-layer suction cup 31, the suction cup 31 can better fit the inclined surface of the side of the battery cell 200.

[0054] For example, the telescopic member 32 can be a spring or a hose.

[0055] Furthermore, the adsorption structure 30 also includes a protective shell 33, in which the telescopic member 32 is housed. Thus, the protective shell 33 can protect the telescopic member 32.

[0056] Furthermore, the adsorption structure 30 is also connected to a suction tube 60 that communicates with the suction cup 31. Thus, the suction tube 60 provides a vacuum environment for the suction cup 31, enabling it to adsorb the battery cell 200. The suction cup 31 is connected to a negative pressure source via the suction tube 60, and the connection of the suction tube 60 is controlled by a solenoid valve connected to it, thereby controlling adsorption or release. The number of adsorption structures 30 corresponds one-to-one with the number of battery cells 200, providing adsorption force to each battery cell 200. Multiple suction cups 31 in the adsorption structure 30 are arranged in one or more rows and all adsorb the stressed bending bottom. By adsorbing the battery cell 200 together through the rows of suction cups 31, it is ensured that the battery cell 200 will not detach during reverse bending.

[0057] Specifically, the battery cell recurving device 100 also includes a fixing structure 50, one end of which is connected to the adsorption structure 30. The fixing structure 50 can be used to position the adsorption structure 30. The fixing structure 50 can be a sheet metal part.

[0058] Specifically, the pressing structure 10 further includes a pressing part 11 and a buffer part 12 stacked together. The pressing part 11 is connected to the other end of the connecting rod 40, and the buffer part 12 is located on the side of the pressing part 11 facing away from the connecting rod 40. The hardness of the pressing part 11 is greater than that of the buffer part 12. In this way, when the battery cell 200 is bent backward, the pressing part 11 of the pressing structure 10 can press down on the battery cell 200, and the buffer part 12 provides a certain buffer for the contact between the pressing structure 10 and the battery cell 200, preventing the battery cell 200 from microcracking or fragmenting during the pressing process.

[0059] Furthermore, the pressing part 11 and the buffer part 12 can be separate or integrally formed, and there is no limitation here.

[0060] For example, the pressing part 11 can be an iron block, an aluminum block, an aluminum alloy block, an iron alloy block, etc. For example, the buffer part 12 can be a silicone block, a nylon block, an air cushion, etc.

[0061] Furthermore, the deformable distance of the pressing portion 11 in the thickness direction is 0.5 mm to 1.5 mm. For example, it is 0.5 mm, 0.8 mm, 1 mm, 1.2 mm, or 1.5 mm. In this way, further buffering can be provided between the battery cell 200 and the pressing structure 10, further reducing the risk of microcracks and fragmentation of the battery cell 200.

[0062] The fixing structure 50 has an opening, allowing the connecting rod 40 to pass through and connect to the drive structure 20. This allows the drive structure 20 to drive the pressing structure 10 toward or away from the battery cell 200 via the connecting rod 40.

[0063] Furthermore, the connecting rod 40 and the pressing structure 10 are integrally formed; or, the connecting rod 40 and the pressing structure 10 are detachably connected, which is not limited here.

[0064] like Figures 1 to 4 As shown, the process of bending the battery cell 200 using the battery cell bending device 100 is as follows: The battery cell 200, with at least one side welded with a solder strip, can be placed under the pressing structure 10, with the arched surface of the battery cell 200 facing the pressing structure 10. Alternatively, the battery cell 200 can be placed under the pressing structure 10 using other transport devices, such as a robotic arm, track, or trolley, or it can be placed manually.

[0065] Next, the pressing structure 10 is aligned with the protruding portion of the battery cell 200, and the adsorption structure 30 is adsorbed onto at least one side of the battery cell 200. Then, the driving structure 20 is activated to drive the pressing structure 10 to press down towards the battery cell 200. During the pressing of the battery cell 200, the adsorption structure 30 can abut against the side of the battery cell 200 to prevent excessive warping of the side of the battery cell 200.

[0066] During the process of bending the battery cell 200 by the pressing structure 10, there is a certain height difference between the pressing structure 10 and the adsorption structure 30 in the height direction of the battery cell bending device 100. The adsorption structure 30 is higher than the pressing structure 10. For example, the height difference D2 between the pressing structure 10 and the adsorption structure 30 is 3 mm to 4 mm.

[0067] After the downward pressing structure 10 completes the inversion of the solar cell 200, the solar cell 200 exhibits an upward-curved state on both sides. Finally, the downward pressing structure 10 can be driven away from the solar cell 200, and the adsorption structure 30 can be removed from the solar cell 200, completing the inversion of the solar cell 200. Under the influence of gravity, the degree of curvature on both sides of the solar cell 200 will gradually decrease, gradually becoming flat, thereby improving the flatness of the solar cell 200. When the solar cell 200 is used in a battery module, the risk of microcracks and fragmentation of the solar cell 200 can be reduced.

[0068] This utility model embodiment also provides a bending device, which includes at least one battery cell bending device 100 provided in this utility model embodiment. Specifically, the bending device may include one battery cell bending device 100, which can simultaneously bend one welded battery cell 200. In addition, the bending device may also include multiple battery cell bending devices 100, which can simultaneously bend multiple welded battery cells 200.

[0069] This utility model embodiment also provides a battery string transport device that suspends and transports a battery string from one workstation to the next workstation. The battery string includes multiple battery cells 200 connected by welding strips and includes the aforementioned recurving device.

[0070] The battery string handling device can largely utilize existing handling mechanisms, with the bending device mounted on its moving parts (e.g., the end effector of a robotic arm). These moving parts drive the bending device to move between two workstations, and it can also move vertically. After connecting to the battery string handling device (e.g., the robotic arm of the battery string handling device), the bending device can move suspended between the two workstations, thus transporting the battery string from one workstation to the next without touching the ground, requiring no additional space. Specifically, one workstation is a welding station, and the other is the next station after welding (e.g., a welding inspection station; EL testing checks the welding quality, and if there are no problems, it proceeds to the layout station; this can be adjusted according to the actual process), transporting the battery string from the welding station to the welding inspection station. It is understood that the suspended transport of the bending device mentioned here can include vertical, horizontal, and forward / backward movement.

[0071] This utility model embodiment also provides a battery cell fixing and bending assembly, which includes a support platform and the aforementioned battery cell bending device 100. The battery cell fixing and bending assembly includes at least one battery cell bending device 100 provided in this utility model embodiment. Specifically, the battery cell fixing and bending assembly may include one battery cell bending device 100, which can simultaneously bend one welded battery cell 200. Furthermore, the battery cell fixing and bending assembly may also include multiple battery cell bending devices 100, which can simultaneously bend multiple welded battery cells 200.

[0072] The cell bending device 100 is disposed opposite to the support platform, which is used to support the cell 200. In this way, the user can place the cell 200 to be bent on the support platform, and the cell bending device 100 can press down on the cell 200 on the support platform to complete the bending of the cell 200.

[0073] It is understandable that "the solar cell inversion device 100 is arranged opposite to the support platform" means that in the height direction of the solar cell inversion device 100, the solar cell inversion device 100 and the support platform have a certain distance, so that the pressing structure 20 of the solar cell inversion device 100 can have a sufficient pressing distance to press down the solar cell 200.

[0074] In the description of this specification, references to terms such as "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Furthermore, the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery cell recurving device, characterized in that, The battery cell inversion device includes: Downward pressure structure; A driving structure is connected to the pressing structure, and the driving structure is used to push the pressing structure toward the battery cell; An adsorption structure is provided on at least one side of the pressing structure, the adsorption structure being used to press against one surface of the battery cell.

2. The battery cell recurving device according to claim 1, characterized in that, The adsorption structure is a stretchable adsorption structure.

3. The battery cell recurving device according to claim 2, characterized in that, The adsorption structure includes a suction cup and a telescopic component, with one end of the telescopic component connected to the suction cup.

4. The battery cell inversion device according to claim 3, characterized in that, The deformable length of the suction cup in the thickness direction is 1mm to 4mm.

5. The battery cell recurving device according to claim 3, characterized in that, The adsorption structure also includes a protective shell, and the telescopic member is housed within the protective shell.

6. The battery cell recurving device according to claim 1, characterized in that, It also includes a connecting rod, one end of which is connected to the driving structure and the other end of which is connected to the pressing structure. The driving structure pushes the pressing structure toward the battery cell through the connecting rod.

7. The battery cell inversion device according to claim 6, characterized in that, The pressing structure includes a pressing part and a buffer part stacked together. The pressing part is connected to the other end of the connecting rod. The buffer part is located on the side of the pressing part facing away from the connecting rod. The hardness of the pressing part is greater than that of the buffer part.

8. The battery cell recurving device according to claim 7, characterized in that, The deformable distance of the pressing part in the thickness direction is 0.5mm to 1.5mm.

9. The battery cell recurving device according to claim 1, characterized in that, It also includes a fixing structure, one end of which is connected to the fixing structure.

10. A battery string handling device for suspending and transporting a battery string from one station to the next, the battery string comprising multiple battery cells connected by welding strips, characterized in that... Includes the cell recurving device as described in any one of claims 1 to 9.

11. A solar cell fixing and recurving assembly, characterized in that, Includes a support platform and a cell recurving device as described in any one of claims 1 to 9; The solar cell recurving device is positioned opposite to the support platform, which is used to support the solar cells.

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