Shaping mechanism and stringer with same

Abstract

The utility model provides a kind of shaping mechanism and the series welding machine with it, shaping mechanism includes shaping subassembly and cooling subassembly, shaping subassembly includes multiple adsorption components and multiple carrying components, multiple adsorption components are spaced along predetermined direction, and two sides of each adsorption component respectively have a carrying component;Each adsorption component is movably arranged along vertical direction, and the adsorption end of adsorption component is used to suck back contact battery piece and drive it away from the carrying end of carrying component, to shape back contact battery piece that two sides two carrying components cooperate with and carry;Cooling subassembly includes cooling channel and refrigeration component, refrigeration component is used to into cooling channel with cooling airflow, cooling channel has multiple air outlet openings, multiple air outlet openings are set up one by one with multiple adsorption components, to blow out cooling airflow to each back contact battery piece on shaping subassembly.The present application solves the problem that warping is prone to occur after the battery piece is welded in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of battery cell shaping technology, and more specifically, to a shaping mechanism and a stringing machine having the same. Background Technology

[0002] The back contact cell has only its back side as the welding surface, and its electrodes are all located on this welding surface. After the back contact cells are welded into a string by welding ribbons, the welding ribbons are all welded to the welding surface of the cells to form a back contact cell string.

[0003] In existing technologies, after the back-contact solar cells are stringed together, a back-contact solar cell string is formed. The solder strips of the string are all welded to the back of the solar cells. While this design optimizes the light absorption efficiency of the front of the solar cells, the thermal expansion and contraction effect of the solder strips during the welding process becomes a problem that cannot be ignored. When the solder strips are heated to melt the solder layer, after welding is completed, the solder strips gradually cool and shrink. This physical change causes the solar cells to deform towards the welded surface, meaning that the middle part of the front of the solar cell is prone to warping upwards.

[0004] To address the issue of warping in back-contact solar cells, existing technologies typically incorporate shaping components on the transport mechanism. After the transport mechanism picks up and removes the welded battery string, the shaping component reshapes the cells within the string, attempting to correct the deformation by adjusting the convex shape of the cells to a horizontal one. However, this correction method has limitations: the cells are heated to high temperatures (typically exceeding 200°C) during welding. Even after initial correction by the shaping component, the cell temperature remains above room temperature as the battery string is transported to the next process. During the period when the cell temperature slowly decreases to room temperature, the cells in the battery string may warp again, resulting in poor shaping effects and failing to meet the demands of high-efficiency production. Utility Model Content

[0005] The main objective of this invention is to provide a shaping mechanism and a string welding machine having the same, in order to solve the problem that battery cells are prone to warping after welding in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, a shaping mechanism is provided for shaping deformed portions of each back contact battery sheet in a back contact battery string. The shaping mechanism includes a shaping component and a cooling component. The shaping component includes multiple adsorption components and multiple mounting components. The adsorption components are spaced apart along a predetermined direction, and each adsorption component has a mounting component on each of its two sides. Each adsorption component and the two mounting components on its two sides cooperate to mount a back contact battery sheet in the back contact battery string. Each adsorption component is movably arranged in a vertical direction. The adsorption end of the adsorption component is used to adsorb the back contact battery sheet and move it away from the mounting end of the mounting component, so as to shape the back contact battery sheet mounted by the two mounting components on its two sides. The cooling component includes a cooling channel and a cooling component. The cooling component is used to introduce cooling airflow into the cooling channel. The cooling channel has multiple air blowing openings, which are arranged one-to-one with the multiple adsorption components. Each air blowing opening is arranged towards the adsorption component and the mounting component to blow cooling airflow onto each back contact battery sheet on the shaping component.

[0007] Furthermore, the cooling assembly also includes an air blowing pipe and a flow guiding component, wherein: the air blowing pipe extends in a predetermined direction, a cooling channel is disposed within the air blowing pipe, and multiple air blowing openings are opened on the air blowing pipe; the flow guiding component is disposed at the air blowing openings and connected to the air blowing pipe to guide the airflow in the cooling channel to the back contact cell on the shaping assembly.

[0008] Furthermore, the flow guiding component is an axial flow fan or axial flow blower; or, the flow guiding component is a pipe, which extends from the outer wall of the blowing pipe toward the gap between the adsorption end of the adsorption component and the mounting end of the adjacent mounting component, and the flow guiding component is arranged around the blowing opening to form a flow guiding channel communicating with the cooling channel.

[0009] Furthermore, the cooling assembly also includes an auxiliary air blowing head, which is mounted on the air blowing pipe. Compressed air supplied from an external source is introduced into the air blowing pipe through the auxiliary air blowing head. The auxiliary air blowing head is used to increase the flow rate of the cooling airflow in the cooling channel.

[0010] Furthermore, an auxiliary air blowing head is disposed on the end face of the air blowing pipe, and the air outlet of the auxiliary air blowing head faces the same direction as the extension direction of the cooling channel; the cooling assembly also includes a first input pipe, the two ends of which are respectively connected to the air outlet of the refrigeration component and the air blowing pipe, and the first input pipe is used to send the cooling airflow sent by the refrigeration component into the air blowing pipe; there are at least two auxiliary air blowing heads, and each auxiliary air blowing head is centrally symmetrically disposed on the end face of the air blowing pipe.

[0011] Furthermore, the refrigeration component has two air outlets, and the cooling assembly also includes a second input pipe. The air outlets of the first and second input pipes are respectively connected to the two ends of the air blowing pipe, and the air inlet of the first and second input pipes is respectively connected to the two air outlets of the refrigeration component.

[0012] Furthermore, the adsorption component includes a ventilation tube and a lifting rod. The ventilation tube is provided with a suction cup for adsorbing the battery cells, and the lifting rod is connected to the ventilation tube. The shaping mechanism also includes a drive assembly, which is connected to the lifting rod. The drive assembly is movably arranged along a predetermined trajectory to drive the lifting rod to rise and fall.

[0013] Furthermore, the shaping mechanism also includes a support plate and a guide sleeve. The driving assembly includes a support beam, a mounting plate, a driving component, and a sliding plate, wherein: the mounting plate is horizontally slidably mounted on the support beam, and the driving component is used to drive the mounting plate to slide in the horizontal direction; the sliding plate is mounted on the mounting plate, and the sliding plate is provided with a limit hole, the extension direction of the limit hole being set at an angle with the horizontal direction; the end of the lifting rod is provided with a guide wheel, the guide wheel is disposed in the limit hole, and the circumferential side of the guide wheel is in contact with the hole wall of the limit hole; the support plate is disposed above the sliding plate, the guide sleeve is disposed on the support plate, and at least a portion of the lifting rod passes through the guide sleeve to guide the lifting rod; during the sliding of the sliding plate in the horizontal direction, the guide wheel moves within the limit hole to drive the adsorption component to rise and fall.

[0014] Furthermore, the lifting rod includes a first lifting rod and a second lifting rod, which are respectively connected to both ends of the vent pipe; the guide sleeve includes a first guide sleeve and a second guide sleeve, which are respectively connected to both ends of the support plate, at least a portion of the first lifting rod passes through the first guide sleeve, and at least a portion of the second lifting rod passes through the second guide sleeve; wherein, the first guide sleeve, the support plate, and the second guide sleeve form an accommodating space, and at least a portion of the cooling assembly is disposed within the accommodating space.

[0015] According to another aspect of the present invention, a stringing machine is provided, which includes a shaping mechanism, a first conveying mechanism, and a second conveying mechanism. The shaping mechanism is the same as described above. The first conveying mechanism is used to convey the back contact battery string to the shaping mechanism, and the second conveying mechanism is used to convey the shaped back contact battery string on the shaping mechanism to the next process. The first conveying mechanism and the second conveying mechanism each have a correction structure for correcting each back contact battery piece of the back contact battery string.

[0016] By applying the technical solution of this utility model, the shaping mechanism provided in this application allows for shaping on a transfer platform, avoiding the waiting time required in traditional technologies where the battery string needs to cool naturally before shaping. During the shaping process, the cooling channels of the cooling component can blow cooling airflow onto the back-contact battery cells on the shaping component, enabling the battery cells to cool rapidly while being shaped. Rapid cooling prevents the battery cells from being heated and deformed again after shaping, thus ensuring the shaping effect.

[0017] Because the multiple adsorption and mounting components in the shaping assembly can precisely fit and mount each cell in the back contact battery string, and the multiple air blowing openings in the cooling assembly correspond one-to-one with the adsorption components, it can ensure that each cell can be precisely shaped and uniformly cooled, effectively reducing the warping of the cells. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram showing the cooperation between the shaping mechanism and the conveying mechanism according to this utility model is shown;

[0020] Figure 2 A structural breakdown diagram of the shaping mechanism according to this utility model is shown;

[0021] Figure 3 A schematic diagram of the air blowing tube of the shaping mechanism according to the present invention is shown;

[0022] Figure 4 A top view of the air blowing tube of the shaping mechanism according to the present invention is shown;

[0023] Figure 5 It shows that according to Figure 4 Sectional view of plane AA;

[0024] Figure 6 A schematic diagram showing the cooperation between the shaping component and the driving component in the shaping mechanism according to the present invention is shown;

[0025] Figure 7 A front view showing the cooperation between the shaping component and the driving component in the shaping mechanism according to the present invention is shown;

[0026] Figure 8 A structural breakdown diagram of the shaping component according to the present invention is shown;

[0027] Figure 9A schematic diagram of the structure of the first conveying mechanism in the string welding machine according to the present invention is shown;

[0028] Figure 10 A schematic diagram of the structure of the second conveying mechanism in the string welding machine according to the present invention is shown.

[0029] The above figures include the following reference numerals:

[0030] 100. Battery cells; 700. Shaping mechanism;

[0031] 200. Shaping component; 210. Adsorption component; 220. Mounting component; 211. Ventilation pipe; 212. Lifting rod; 213. Suction cup; 214. Guide wheel; 2120. First lifting rod; 2121. Second lifting rod;

[0032] 300. Cooling assembly; 310. Cooling channel; 320. Air blowing pipe; 330. Airflow guide component; 340. Refrigeration component; 350. Auxiliary air blowing head; 341. First output pipe; 342. Second output pipe; 361. First input pipe; 362. Second input pipe;

[0033] 400. Drive assembly; 410. Sliding plate; 411. Limiting hole; 420. Support base; 421. Support beam; 430. Mounting plate; 440. Drive component;

[0034] 500, Support plate; 600, Guide sleeve; 610, First guide sleeve; 620, Second guide sleeve;

[0035] 810. First conveying mechanism; 811. Base; 812. Lifting frame; 813. Support frame; 814. Horizontal transmission assembly; 815. First straightening structure; 820. Second conveying mechanism; 821. Horizontal drive module; 822. Vertical drive module; 823. Second straightening structure; 900. Conveyor line. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] As mentioned in the background section, after the existing back-contact solar cells are stringed together, forming a back-contact cell string, the solder strips of the cell string are heated to melt the solder layer. Due to temperature changes, the solder strips gradually cool and shrink, causing warping of the cell surface. To address this warping issue, existing technologies typically incorporate shaping components on the handling mechanism to reshape the cells during transport. However, because the temperature of the cells during welding is excessively high, even with shaping during transport, warping can still occur again during cooling, resulting in poor shaping performance. Therefore, to address the aforementioned technical problems, the shaping mechanism provided in this application includes a shaping component 200 and a cooling component 300. The shaping component 200 includes multiple adsorption components 210 and multiple mounting components 220. The multiple adsorption components 210 are spaced apart along a predetermined direction. Each adsorption component 210 has a mounting component 220 on each of its two sides. Each adsorption component 210 and its two mounting components 220 cooperate to mount a back contact battery sheet 100 from the back contact battery string. Each adsorption component 210 is movably arranged in the vertical direction, and the adsorption end of the adsorption component 210 is used to adsorb the back contact battery sheet 100. The battery cell 100 is moved away from the mounting end of the mounting component 220 to shape the back contact battery cell 100 mounted on the two mounting components 220 on both sides; the cooling assembly 300 includes a cooling channel 310 and a cooling component 340. The cooling component 340 is used to introduce cooling airflow into the cooling channel 310. The cooling channel 310 has multiple air blowing openings, which are arranged one-to-one with multiple adsorption components 210. Each air blowing opening is arranged towards the adsorption component 210 and the mounting component 220 to blow cooling airflow onto each back contact battery cell 100 on the shaping assembly 200. With a separately designed shaping mechanism, the shaping component 200 and the cooling component 300 can be mounted simultaneously. During the shaping process of the battery cell 100 by the adsorption component 210, the cooling component 300 simultaneously cools the battery cell 100, which can quickly reduce the temperature of the battery cell 100, thereby preventing the battery cell 100 from being heated and deformed again after shaping, thus ensuring the shaping effect of the battery cell 100 and improving the production quality of the battery cell 100.

[0038] Please refer to Figures 1 to 8This application provides a shaping mechanism for shaping deformed portions of each back contact battery sheet 100 in a back contact battery string. The shaping mechanism includes a shaping assembly 200 and a cooling assembly 300. The shaping assembly 200 includes multiple adsorption components 210 and multiple mounting components 220. The adsorption components 210 are spaced apart along a predetermined direction, and each adsorption component 210 has a mounting component 220 on each of its two sides. Each adsorption component 210 and the two mounting components 220 on its two sides cooperate to mount one back contact battery sheet 100 in the back contact battery string. Each adsorption component 210 is movably arranged in the vertical direction. The adsorption end of 210 is used to hold the back contact battery cell 100 and move it away from the mounting end of the mounting component 220, so as to shape the back contact battery cell 100 mounted on the two mounting components 220 on both sides; the cooling assembly 300 includes a cooling channel 310 and a cooling component 340. The cooling component 340 is used to introduce cooling airflow into the cooling channel 310. The cooling channel 310 has multiple air blowing openings, which are arranged one-to-one with the multiple adsorption components 210. Each air blowing opening is arranged towards the adsorption component 210 and the mounting component 220, so as to blow cooling airflow onto each back contact battery cell 100 on the shaping assembly 200.

[0039] According to the shaping mechanism provided in this application, shaping can be performed on a transfer platform, avoiding the waiting time required in traditional technologies where the battery string needs to cool naturally before shaping. During the shaping process, the cooling channels of the cooling component 300 can blow cooling airflow onto the back-contact battery cells 100 on the shaping component 200, allowing the battery cells to cool rapidly while being shaped. Rapid cooling prevents the battery cells from being heated and deformed again after shaping, thus ensuring the shaping effect.

[0040] Since the multiple adsorption components 210 and mounting components 220 in the shaping assembly can precisely fit and mount each battery cell in the back contact battery string, and the multiple air blowing openings in the cooling assembly 300 correspond one-to-one with the adsorption components, it can ensure that each battery cell can be precisely shaped and uniformly cooled, effectively reducing the warping of the battery cells.

[0041] like Figures 2 to 5 As shown, the cooling assembly 300 also includes an air blowing pipe 320 and a flow guiding component 330, wherein: the air blowing pipe 320 extends in a predetermined direction, the cooling channel 310 is disposed in the air blowing pipe 320, and a plurality of air blowing openings are opened on the air blowing pipe 320; the flow guiding component 330 is disposed at the air blowing openings and connected to the air blowing pipe 320 to guide the airflow in the cooling channel 310 to the back contact cell 100 on the shaping assembly 200.

[0042] The air blowing pipe 320 extends in a predetermined direction, and its internal cooling channel 310 ensures that the cooling airflow can be evenly distributed throughout the pipe. By opening multiple air blowing openings in the air blowing pipe 320 in a predetermined direction, the airflow can be evenly guided to each back-contact solar cell 100 on the shaping assembly 200, achieving uniform and rapid cooling of the solar cells and preventing damage to the solar cells caused by local overheating or uneven cooling.

[0043] The airflow guide 330 is located at the air blowing opening, which can accurately guide the airflow in the cooling channel 310 to the corresponding back contact cell 100, ensuring that the airflow can directly act on the deformed part of the cell that needs to be cooled, thereby improving the cooling efficiency.

[0044] Example 1

[0045] The flow guiding component 330 is an axial flow fan or axial flow fan; or, the flow guiding component 330 is a pipe, which extends from the outer wall surface of the air blowing pipe 320 toward the gap between the adsorption end of the adsorption component 210 and the mounting end of the adjacent mounting component 220. The flow guiding component 330 is arranged around the air blowing opening to form a flow guiding channel communicating with the cooling channel 310.

[0046] When the airflow guide component 330 is an axial flow fan or axial flow fan, its unique axial airflow design can directly guide the airflow to the target cell, effectively reducing the diffusion of airflow between the air blowing pipe 320 and the target, ensuring the concentration and efficient use of cooling airflow, thereby accelerating the cooling process of the cell.

[0047] When the flow guide component 330 is a tube arranged around the air blowing opening, its structure arranged around the air blowing opening can ensure that the cooling airflow is evenly distributed in the gap between the adsorption end of the adsorption component 210 and the mounting end of the adjacent mounting component 220, avoiding local concentration or dispersion of the cooling airflow and ensuring that each battery cell can be cooled evenly.

[0048] In one embodiment provided in this application, when the flow guide 330 is a pipe, the opening of the pipe has a tapered structure along the blowing direction of the airflow, thereby increasing the airflow velocity and improving the cooling efficiency of the battery cell 100.

[0049] Example 2

[0050] In this embodiment, the airflow guiding component 330 is an air nozzle, and multiple air nozzles are configured. Each air nozzle is hinged to the airflow tube 320, allowing each air nozzle to be rotatably arranged relative to the airflow tube 320. This enables the airflow direction of the air nozzle to be adjusted, allowing it to precisely blow air towards the high-temperature area of ​​the battery cell 100 as needed. The air nozzle is flat, enabling concentrated airflow.

[0051] The cooling assembly 300 also includes an auxiliary air blowing head 350, which is disposed on the air blowing pipe 320. Compressed air supplied from an external source is introduced into the air blowing pipe 320 through the auxiliary air blowing head 350. The auxiliary air blowing head is used to increase the flow rate of the cooling airflow in the cooling channel 310.

[0052] The auxiliary air blowing head 350 can significantly increase the airflow velocity and airflow pressure in the cooling channel 310 by introducing compressed air from an external source, ensuring that the cooling airflow is evenly distributed inside the air blowing pipe 320, avoiding local concentration or unevenness of airflow during transmission, thereby ensuring that all back contact cells 100 can receive a uniform cooling effect, and improving the overall quality and consistency of the battery string.

[0053] In a specific implementation, the auxiliary air blowing head 350 is disposed on the end face of the air blowing pipe 320, and the air outlet of the auxiliary air blowing head 350 faces the same direction as the extension direction of the cooling channel 310; the cooling assembly 300 also includes a first input pipe 361, the two ends of the first input pipe 361 are respectively connected to the air outlet of the cooling component 340 and the air blowing pipe 320, and the first input pipe 361 is used to send the cooling airflow sent by the cooling component 340 into the air blowing pipe 320; there are at least two auxiliary air blowing heads 350, and each auxiliary air blowing head 350 is centrally symmetrically disposed on the end face of the air blowing pipe 320.

[0054] The auxiliary air blowing head 350 can further enhance the cooling airflow intensity within the air blowing pipe 320. Its outlet direction is consistent with the extension direction of the cooling channel 310, allowing the airflow from the auxiliary air blowing head to flow in the same direction as the airflow within the cooling channel, thereby increasing the airflow speed and pressure, accelerating the cooling airflow, and improving cooling efficiency.

[0055] The symmetrically arranged auxiliary air blowing heads 350 can balance the flow direction of the cooling airflow, prevent the internal pressure of the air blowing pipe 320 from being unstable due to airflow imbalance, and ensure the airflow in the cooling channel 310 is stable, thereby improving the stability and reliability of the cooling component.

[0056] In one embodiment provided in this application, the cooling channel 310 is formed by a circular tube, and at least two auxiliary air blowing heads 350 are respectively provided on the two end faces of the circular tube. The at least two auxiliary air blowing heads 350 on each end face are arranged at intervals along the circumferential direction of the circular tube and are arranged in a centrally symmetrical manner.

[0057] In another embodiment provided in this application, the cooling channel 310 is surrounded by a polygonal pipe, and at least two auxiliary air blowing heads 350 are respectively provided on the two end faces of the polygonal pipe, and the at least two auxiliary air blowing heads 350 on each end face are centrally symmetrically arranged.

[0058] In one embodiment provided in this application, the cooling component 340 has two air outlets, and the cooling assembly 300 further includes a second input pipe 362. The air outlets of the first input pipe 361 and the second input pipe 362 are respectively connected to the two ends of the air blowing pipe 320, and the air inlet of the first input pipe 361 and the air inlet of the second input pipe 362 are respectively connected to the two air outlets of the cooling component 340.

[0059] The first input pipe 361 and the second input pipe 362 are respectively connected to both ends of the air blowing pipe 320. The first input pipe 361 is connected to the cooling component 340 through the first output pipe 341, and the second input pipe 362 is connected to the cooling component 340 through the second output pipe 342. This ensures a balanced distribution of cooling airflow inside the air blowing pipe 320, avoiding the uneven airflow distribution problem that may be caused by single-end air supply. In this case, the dual input pipe design allows the cooling component 340 to output cooling airflow from both outlets simultaneously, increasing the airflow rate entering the air blowing pipe 320, thereby significantly improving the airflow velocity in the cooling channel 310. Combined with multiple auxiliary air blowing heads 350 at both ends, this ensures a uniform distribution of cooling airflow within the air blowing pipe 320, avoiding localized airflow accumulation or thinning, and helping to improve the uniformity and consistency of the back contact battery cell 100 during the cooling process.

[0060] Specifically, the cooling component 340 described in this application can be an industrial air conditioner, which can deliver a cooling airflow of less than 20 degrees Celsius into the air blowing pipe 320 to quickly cool the battery string on the shaping assembly.

[0061] In another embodiment provided in this application, air inlets are provided at both ends of the air blowing pipe 320, and the air inlets at both ends are connected to the first input pipe 361 and the second input pipe 362 respectively. Along the direction from the air inlet to the middle of the cooling channel 310, the cross-sectional area of ​​the flow section of the cooling channel 310 gradually increases.

[0062] Airflow enters from both ends and gradually diffuses within the channel. By utilizing the change in cross-sectional area of ​​the flow section within the cooling channel 310, the flow velocity of the airflow within the cooling channel 310 is adjusted. The portion entering the cooling channel 310 from the air inlet has a smaller flow cross-sectional area and a higher flow velocity. When it enters the middle of the cooling channel 310, the flow velocity slows down, allowing for the accumulation of a larger flow rate. Even if the middle position is far from the air inlet, it can still meet the flow rate requirements of the cooling airflow.

[0063] In this application, as Figures 6 to 8As shown, the adsorption component 210 includes a ventilation pipe 211 and a lifting rod 212. The ventilation pipe 211 is provided with a suction cup 213 for adsorbing the battery cell 100. The lifting rod 212 is connected to the ventilation pipe 211. The shaping mechanism also includes a drive assembly 400, which is connected to the lifting rod 212. The drive assembly 400 is movably arranged along a predetermined trajectory to drive the lifting rod 212 to rise and fall.

[0064] By connecting the lifting rod 212 to the ventilation pipe 211, and the drive assembly 400 to the lifting rod 212, precise positioning and lifting control of the battery cell 100 can be achieved. The movement function of the drive assembly 400 can drive the entire adsorption component 210 (including the ventilation pipe 211 and the suction cup 213) to rise and fall along a predetermined trajectory. At the same time, the adsorption force of the adsorption component 210 on the battery cell 100 can flatten the concave or convex parts of the battery cell 100, thereby achieving the shaping of the battery cell 100.

[0065] In the specific implementation process, such as Figure 8 As shown, each battery cell 100 is held in place by four equally spaced suction cups 213. However, the specific number of suction cups 213 is not limited and can be any number of 3, 4, 5, 6, 7 or 8. The specific number is determined based on the test results in actual production, as long as the suction cups 213 can stably hold the battery cell 100 while pulling it to deform.

[0066] In the specific implementation process, the shaping mechanism also includes a support plate 500 and a guide sleeve 600. The drive assembly 400 includes a support beam 421, a mounting plate 430, a drive component 440, and a sliding plate 410. Specifically: the mounting plate 430 is horizontally slidable on the support beam 421; the drive component 440 drives the mounting plate 430 to slide horizontally; the sliding plate 410 is mounted on the mounting plate 430, and a limit hole 411 is provided on the sliding plate 410, with the extension direction of the limit hole 411 forming an angle with the horizontal direction; the lifting rod 212... The end of the device is provided with a guide wheel 214, which is disposed in the limiting hole 411. The circumferential side of the guide wheel 214 is in contact with the hole wall of the limiting hole 411. The support plate 500 is disposed above the sliding plate 410, and the guide sleeve 600 is disposed on the support plate 500. At least a portion of the lifting rod 212 passes through the guide sleeve 600 to guide the lifting rod 212. During the sliding of the sliding plate 410 in the horizontal direction, the guide wheel 214 moves in the limiting hole 411 to drive the adsorption component 210 to rise and fall.

[0067] Supporting bases 420 are provided at both ends of the supporting beam 421, and the supporting beam 421 is supported by the supporting bases 420.

[0068] The limiting hole 411 on the sliding plate 410 engages with the guide wheel 214 at the end of the lifting rod 212. Utilizing the inclined design of the limiting hole 411, when the sliding plate 410 moves horizontally, the guide wheel 214 rolls within the limiting hole 411, driving the lifting rod 212 to move up and down. This achieves vertical movement control of the adsorption component 210. The fit between the guide wheel 214 and the limiting hole 411, along with the passage of the lifting rod 212 within the guide sleeve 600, work together to ensure the guiding accuracy of the lifting rod 212 during vertical movement. Furthermore, the rolling contact between the guide wheel 214 and the wall of the limiting hole 411, and the sliding contact between the lifting rod 212 and the guide sleeve 600, reduce direct friction between mechanical parts, effectively reducing mechanical wear and extending the service life of the equipment.

[0069] Further, the lifting rod 212 includes a first lifting rod 2120 and a second lifting rod 2121, which are respectively connected to the two ends of the vent pipe 211; the guide sleeve 600 includes a first guide sleeve 610 and a second guide sleeve 620, which are respectively connected to the two ends of the support plate 500; at least a portion of the first lifting rod 2120 passes through the first guide sleeve 610, and at least a portion of the second lifting rod 2121 passes through the second guide sleeve 620; wherein, the first guide sleeve 610, the support plate 500 and the second guide sleeve 620 form an accommodating space, and at least a portion of the cooling assembly 300 is disposed within the accommodating space.

[0070] The symmetrical design of the first lifting rod 2120 and the second lifting rod 2121, and their cooperation with their respective guide sleeves, ensure that the ventilation pipe 211 and its suction cup 213 maintain good balance and stability during vertical movement, avoiding the shaking of the adsorption component 210 during the shaping process. Part of the cooling component 300 is set in the accommodating space surrounded by the first guide sleeve 610, the support beam 421 and the second guide sleeve 620, which not only saves space but also improves the integration of the equipment, making the entire system layout more compact.

[0071] This application also provides a string welding machine, such as Figure 9 and Figure 10 As shown, the stringing machine includes a shaping mechanism 700, a first transport mechanism 810, and a second transport mechanism 820. The shaping mechanism 700 is the same as the shaping mechanism 700 described in the above embodiment. The first transport mechanism 810 is used to transport the back contact battery string to the shaping mechanism 700, and the second transport mechanism is used to transport the shaped back contact battery string on the shaping mechanism 700 to the next process. The first transport mechanism 810 and the second transport mechanism 820 respectively have a correction structure for correcting each back contact battery cell of the back contact battery string.

[0072] The first conveying mechanism 810 includes a base 811, a lifting frame 812, a support frame 813, a horizontal transmission assembly 814, and a first correction structure 815. The support frame 813 is a gantry structure and is mounted on the base 811. The lifting frame 812 is slidably connected to the support frame 813, and the support frame 813 and the lifting frame 812 are movable relative to each other. The support frame 813 is also connected to the horizontal transmission assembly 814, which is a transmission belt structure. The first correction structure 815 is located at the bottom of the lifting frame 812 and includes a suction cup. The suction cup is used to adsorb the battery cell, and then the lifting frame 812 and the horizontal transmission assembly 814 drive the battery cell to move in the vertical and horizontal directions respectively. The suction cup is movably mounted in the vertical direction, thereby correcting the deformed parts of the battery cell during the movement.

[0073] The second conveying mechanism 820 includes a horizontal drive module 821, a vertical drive module 822, and a second correction structure 823. The second correction structure 823 is disposed on the vertical drive module 822, which is connected to the horizontal drive module 821. The horizontal drive module 821 drives the second correction structure 823 to move horizontally through the vertical drive module 822. At the same time, the vertical drive module 822 can drive the second correction structure 823 to move vertically. The second correction structure 823 includes a suction cup, which adsorbs the battery cell and corrects the deformed part of the battery cell by moving the suction cup vertically.

[0074] like Figure 1 As shown, the first transport mechanism 810 transports the welded battery string to the transfer platform. During this process, the first straightening structure 815 is used to shape the battery cells. The second transport mechanism 820 picks up the shaped battery string from the transfer platform and places it on the conveyor line 900. The conveyor line 900 is used to receive the shaped battery string and send it to the next process. In the above embodiment, the shaping mechanism 700 is set at the transfer platform. It is a separate shaping process added during the battery string processing to shape the battery cells 100 and make the surface of the battery cells 100 flat.

[0075] Under the action of the first conveying mechanism, the battery string is transported to the transfer platform. At this time, the shaping mechanism 700 starts to work, correcting the deformation of the battery cells by pushing or pulling them. At the same time, the cooling component 300 is immediately activated to quickly reduce the temperature of the battery cells, reduce the deformation caused by thermal stress, and improve the shaping effect and efficiency.

[0076] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0077] According to the shaping mechanism provided in this application, shaping can be performed on a transfer platform, avoiding the waiting time required in traditional technologies where the battery string needs to cool naturally before shaping. During the shaping process, the cooling channels of the cooling component 300 can blow cooling airflow onto the back-contact battery cells 100 on the shaping component 200, allowing the battery cells to cool rapidly while being shaped. Rapid cooling prevents the battery cells from being heated and deformed again after shaping, thus ensuring the shaping effect.

[0078] Since the multiple adsorption components 210 and mounting components 220 in the shaping assembly can precisely fit and mount each battery cell in the back contact battery string, and the multiple air blowing openings in the cooling assembly 300 correspond one-to-one with the adsorption components, it can ensure that each battery cell can be precisely shaped and uniformly cooled, effectively reducing the warping of the battery cells.

[0079] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0080] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0081] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0082] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0083] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shaping mechanism for shaping deformed portions of each back contact battery cell (100) in a back contact battery string, characterized in that, The shaping mechanism includes a shaping component (200) and a cooling component (300), wherein, The shaping assembly (200) includes a plurality of adsorption components (210) and a plurality of mounting components (220). The plurality of adsorption components (210) are spaced apart along a predetermined direction. Each adsorption component (210) has a mounting component (220) on each side. Each adsorption component (210) and the two mounting components (220) on its two sides cooperate to mount a back contact battery sheet (100) in the back contact battery string. Each of the adsorption components (210) is movably arranged in the vertical direction. The adsorption end of the adsorption component (210) is used to hold the back contact battery sheet (100) and drive it away from the mounting end of the mounting component (220) so as to shape the back contact battery sheet (100) mounted on the two mounting components (220) on both sides. The cooling assembly (300) includes a cooling channel (310) and a refrigeration component (340). The refrigeration component (340) is used to introduce cooling airflow into the cooling channel (310). The cooling channel (310) has multiple air blowing openings, which are arranged one-to-one with multiple adsorption components (210). Each air blowing opening is arranged towards the adsorption component (210) and the mounting component (220) to blow cooling airflow onto each back contact battery cell (100) on the shaping assembly (200).

2. The shaping mechanism according to claim 1, characterized in that, The cooling assembly (300) further includes an air blowing pipe (320) and a flow guiding component (330), wherein: The air blowing pipe (320) extends along the predetermined direction, the cooling channel (310) is disposed inside the air blowing pipe (320), and a plurality of air blowing openings are opened on the air blowing pipe (320); The airflow guide (330) is disposed at the airflow opening and connected to the airflow tube (320) to guide the airflow in the cooling channel (310) to the back contact cell (100) on the shaping assembly (200).

3. The shaping mechanism according to claim 2, characterized in that, The flow guiding component (330) is an axial flow fan or axial flow fan; or, The flow guiding component (330) is a pipe. The flow guiding component extends from the outer wall surface of the air blowing pipe (320) toward the gap between the adsorption end of the adsorption component (210) and the adjacent mounting end of the mounting component (220). The flow guiding component (330) is arranged around the air blowing opening to form a flow guiding channel communicating with the cooling channel (310).

4. The shaping mechanism according to claim 2, characterized in that, The cooling assembly (300) also includes an auxiliary air blowing head (350), which is disposed on the air blowing pipe (320). Compressed air supplied from an external source is introduced into the air blowing pipe (320) through the auxiliary air blowing head (350). The auxiliary air blowing head is used to increase the flow rate of the cooling airflow in the cooling channel (310).

5. The shaping mechanism according to claim 4, characterized in that, The auxiliary air blowing head (350) is disposed on the end face of the air blowing pipe (320), and the air outlet of the auxiliary air blowing head (350) faces the same direction as the extension direction of the cooling channel (310). The cooling assembly (300) further includes a first input pipe (361), the two ends of which are respectively connected to the air outlet of the cooling component (340) and the air blowing pipe (320). The first input pipe (361) is used to send the cooling airflow sent by the cooling component (340) into the air blowing pipe (320). There are at least two auxiliary air blowing heads (350), and each of the auxiliary air blowing heads (350) is centrally symmetrically arranged on the end face of the air blowing pipe (320).

6. The shaping mechanism according to claim 5, characterized in that, The refrigeration component (340) has two outlets. The cooling assembly (300) also includes a second input pipe (362). The outlets of the first input pipe (361) and the second input pipe (362) are respectively connected to the two ends of the blowing pipe (320). The inlet of the first input pipe (361) and the inlet of the second input pipe (362) are respectively connected to the two outlets of the refrigeration component (340).

7. The shaping mechanism according to any one of claims 1 to 6, characterized in that, The adsorption component (210) includes a ventilation tube (211) and a lifting rod (212). The ventilation tube (211) is provided with a suction cup (213) for adsorbing the battery cell (100). The lifting rod (212) is connected to the ventilation tube (211). The shaping mechanism also includes a drive assembly (400) connected to the lifting rod (212). The drive assembly (400) is movably arranged along a predetermined trajectory to drive the lifting rod (212) to rise and fall.

8. The shaping mechanism according to claim 7, characterized in that, The shaping mechanism further includes a support plate (500) and a guide sleeve (600), and the drive assembly (400) includes a support beam (421), a mounting plate (430), a drive component (440), and a sliding plate (410), wherein: The mounting plate (430) is slidably mounted on the support beam (421) and the driving member (440) is used to drive the mounting plate (430) to slide in the horizontal direction; The sliding plate (410) is disposed on the mounting plate (430), and the sliding plate (410) is provided with a limiting hole (411), the extending direction of the limiting hole (411) is set at an angle to the horizontal direction; The end of the lifting rod (212) is provided with a guide wheel (214), the guide wheel (214) is disposed in the limiting hole (411), and the circumferential side of the guide wheel (214) is in contact with the hole wall of the limiting hole (411); The support plate (500) is disposed above the sliding plate (410), the guide sleeve (600) is disposed on the support plate (500), and at least a portion of the lifting rod (212) passes through the guide sleeve (600) to guide the lifting rod (212) through the guide sleeve (600). During the sliding of the sliding plate (410) in the horizontal direction, the guide wheel (214) moves within the limiting hole (411) to drive the adsorption component (210) to rise and fall.

9. The shaping mechanism according to claim 8, characterized in that, The lifting rod (212) includes a first lifting rod (2120) and a second lifting rod (2121), the first lifting rod (2120) and the second lifting rod (2121) being respectively connected to both ends of the vent pipe (211); The guide sleeve (600) includes a first guide sleeve (610) and a second guide sleeve (620), the first guide sleeve (610) and the second guide sleeve (620) are respectively connected to both ends of the support plate (500), at least a portion of the first lifting rod (2120) passes through the first guide sleeve (610), and at least a portion of the second lifting rod (2121) passes through the second guide sleeve (620); The first guide sleeve (610), the support plate (500) and the second guide sleeve (620) form a receiving space, and at least a portion of the cooling assembly (300) is disposed within the receiving space.

10. A string welding machine, characterized in that, The string welding machine includes a shaping mechanism (700), a first conveying mechanism (810), and a second conveying mechanism (820). The shaping mechanism (700) is the shaping mechanism (700) according to any one of claims 1 to 9; The first transport mechanism (810) is used to transport the back contact battery string to the shaping mechanism (700), and the second transport mechanism (820) is used to transport the shaped back contact battery string on the shaping mechanism (700) to the next process; The first transport mechanism (810) and the second transport mechanism (820) each have a correction structure for correcting each back contact battery cell of the back contact battery string.

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