Solder strip handling apparatus, battery string production line and battery string

Abstract

The application relates to a welding strip processing device, a battery string production line and a battery string. The welding strip processing device comprises a mounting assembly, a guide assembly and a surface treatment assembly. The guide assembly is rotationally connected to the mounting assembly, and is used for guiding the welding strip to be processed when the welding strip to be processed moves in a preset direction. The surface treatment assembly is arranged on the mounting assembly, and is used for etching the surface of the welding strip to be processed. When the welding strip for preparing a solar battery string is processed by the device, the guide assembly is used for guiding the welding strip to be processed when the welding strip to be processed moves in the preset direction, so that the direction of the welding strip to be processed is relatively accurate. In the subsequent welding process, the welding flux is no longer needed, the corrosion and damage of the welding flux to the string welding machine when the welding flux volatilizes and condenses on the string welding machine are reduced, and the welding flux that volatilizes and condenses can be prevented from adhering to the welding strip and the battery piece to corrode the welding strip and the battery piece.

Description

Technical Field

[0001] This application relates to the field of solar cell technology, and in particular to ribbon processing equipment, cell string production lines, and cell strings. Background Technology

[0002] In the fabrication of solar cell strings, a stringer is used to weld the solder ribbons to the pads on the solar cells. To remove the oxide layer on the solder ribbons, flux is used during the welding process. However, because flux is corrosive and volatile, the stringer is prone to malfunction due to flux volatilization and condensation, leading to frequent downtime for maintenance. Furthermore, the volatilized flux easily adheres to the solder ribbons and cells, corroding them and causing the final photovoltaic modules to fail easily with a short lifespan. Utility Model Content

[0003] Therefore, it is necessary to provide a welding strip processing device to address the problems that existing string welding machines are prone to failure due to the volatilization and condensation of flux during the preparation of battery strings, which leads to frequent downtime for maintenance; at the same time, it also corrodes the welding strip and battery cells, affecting the service life of the final photovoltaic modules.

[0004] A welding strip processing device, comprising:

[0005] Install components;

[0006] A guide assembly, rotatably connected to the mounting assembly, is used to guide the weld strip to be processed as it moves forward in a preset direction; and

[0007] A surface treatment component is disposed on the mounting component, the surface treatment component being used to perform surface etching on the solder strip to be treated.

[0008] In some embodiments, the surface treatment component includes:

[0009] Gas source, used to provide processing gas; and

[0010] At least one nozzle group, the nozzle group including at least one nozzle, for ionizing the processing gas provided by the gas source and spraying it onto the surface of the solder strip to be processed, so as to perform surface etching on the solder strip to be processed.

[0011] In some embodiments, the surface treatment assembly includes a first nozzle group and a second nozzle group;

[0012] The first nozzle group and the second nozzle group are arranged on both sides of the weld strip to be treated along the thickness direction, and are spaced apart from the weld strip to be treated.

[0013] In some embodiments, the weld strip to be processed has a first side and a second side along the thickness direction; the first nozzle group is located on the first side of the weld strip to be processed, and the second nozzle group is located on the second side of the weld strip to be processed;

[0014] The distance d1 between any of the nozzles in the first nozzle group and the surface on the first side is equal to the distance d2 between any of the nozzles in the second nozzle group and the surface on the second side.

[0015] In some embodiments, the distance d1 between the nozzles in the first nozzle group and the surface on the first side satisfies the condition:

[0016] 1mm≤d1≤3mm;

[0017] The distance d2 between the nozzle in the second nozzle group and the surface on the second side satisfies the condition:

[0018] 1mm≤d2≤3mm.

[0019] In some embodiments, the first nozzle group includes a plurality of first nozzles arranged in a direction perpendicular to the direction of movement of the weld strip to be processed;

[0020] The second nozzle group includes a plurality of second nozzles spaced apart in a direction perpendicular to the direction of movement of the weld strip to be processed.

[0021] In some embodiments, the spacing d3 between any two adjacent first nozzles is equal; and / or

[0022] The distance d4 between any two adjacent second nozzles is equal.

[0023] In some embodiments, the installation component includes:

[0024] Mounting base, the guide assembly is rotatably connected to the mounting base;

[0025] A first mounting component is connected to the mounting base; the first mounting component is used to mount the first nozzle assembly; and

[0026] The second mounting component is disposed opposite to the first mounting component along the thickness direction of the weld strip to be processed and is connected to the mounting base; the second mounting component is used to install the second nozzle assembly.

[0027] In some embodiments, the first nozzle group includes a plurality of first nozzles spaced apart;

[0028] The first mounting member is provided with a plurality of first mounting protrusions;

[0029] One end of each of the first nozzles passes through one of the first mounting protrusions and is fixedly connected to the first mounting protrusion.

[0030] In some embodiments, the second nozzle group includes a plurality of second nozzles spaced apart;

[0031] The second mounting member is provided with a plurality of second mounting protrusions;

[0032] One end of each of the second nozzles passes through one of the second mounting protrusions and is fixedly connected to the second mounting protrusion.

[0033] In some embodiments, the guiding component includes:

[0034] A rotating shaft is rotatably connected to the mounting assembly.

[0035] A guide wheel is sleeved on the rotating shaft, and a guide groove is constructed on the guide wheel for at least partially accommodating the welding strip to be processed.

[0036] In some embodiments, the weld strip to be processed has a gap with at least one sidewall of the guide groove.

[0037] In some embodiments, there are multiple guide wheels, and the multiple guide wheels are spaced apart along a direction perpendicular to the direction of movement of the weld strip to be processed;

[0038] Each of the guide wheels is configured to have at least one of the guide grooves.

[0039] In some embodiments, the solder strip processing apparatus further includes a clamping assembly comprising:

[0040] A first clamping member is used to clamp one end of the weld strip to be processed along the moving direction of the weld strip to be processed; and

[0041] The second clamping member is spaced apart from the first clamping member along the moving direction of the weld strip to be processed; the second clamping member is used to clamp the other end of the weld strip to be processed along the moving direction of the weld strip to be processed;

[0042] One of the first clamping member and the second clamping member is capable of moving closer to or further away from the other.

[0043] This application also provides a battery string production line, which includes the welding strip processing equipment described in any of the above embodiments.

[0044] In some embodiments, the battery string production line includes:

[0045] A gripper is used to sequentially grip the battery cell and the solder strip processed by the solder strip processing equipment to form a component to be welded;

[0046] A conveying assembly for conveying the component to be welded to a preset welding station, and

[0047] A welding mechanism is used to perform welding operations on the components to be welded at the preset welding station.

[0048] This application also provides a battery string, which is manufactured using the battery string production line described in the above embodiments.

[0049] When the solder ribbons for preparing solar cell strings are processed using the aforementioned solder ribbon processing equipment, the guide component guides the solder ribbons as they move forward in a preset direction. This ensures precise alignment of the solder ribbons during surface etching by the surface treatment component, allowing for better etching of the surface. Furthermore, since this application removes the oxide film from the solder ribbons using the surface treatment component, flux is no longer required in subsequent welding processes. This reduces the risk of flux evaporation and condensation on the stringer, thus lowering the probability of malfunctions and minimizing downtime for maintenance. It also prevents evaporating flux from adhering to the solder ribbons and cells, thus avoiding corrosion and ultimately resulting in photovoltaic modules less prone to corrosion failure and with a longer service life. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of a solder strip processing device provided in some embodiments of this application.

[0051] Figure 2 for Figure 1 Left view of the welding strip processing equipment shown.

[0052] Figure 3 for Figure 1 The top view of the solder strip processing equipment shown.

[0053] Figure 4 This is a schematic diagram of the nozzle assembly, clamping assembly, and weld strip to be processed in a welding strip processing device provided in some embodiments of this application.

[0054] Figure 5 for Figure 4 The diagram shows a clamping assembly holding the solder strip to be processed.

[0055] Figure 6 This is a schematic diagram of a welding mechanism in a battery string production line provided in some embodiments of this application, where components to be welded are being welded.

[0056] Figure 7 for Figure 6 The diagram shows the assembly of the component to be welded with the movable pressure fixture.

[0057] Reference numerals: 100-Mounting component; 110-Mounting base; 120-First mounting member; 121-First mounting protrusion; 130-Second mounting member; 131-Second mounting protrusion; 200-Guide component; 210-Rotating shaft; 220-Guide wheel; 221-Guide groove; 300-Nozzle assembly; 310-First nozzle assembly; 311-First nozzle; 320-Second nozzle assembly; 321-Second nozzle; 400-Clamping component; 410-First clamping member; 420-Second clamping member; 500-Welding mechanism; 510-Movable pressure fixture; 520-Heating element; 600-Welding strip to be processed; 600a-Welding strip; 700-Battery cell; 800-Component to be welded; 900-Conveying component. Detailed Implementation

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] See Figures 1-3 , Figure 1 A schematic diagram of a solder strip processing apparatus provided in some embodiments of this application is shown. Figure 2 Show Figure 1 Left view of the welding strip processing equipment shown. Figure 3 Show Figure 1 The top view of the solder strip processing equipment shown.

[0065] An embodiment of this application provides a solder strip processing device, which includes a mounting assembly 100, a guiding assembly 200, and a surface treatment assembly. The guiding assembly 200 is rotatably connected to the mounting assembly 100 and is used to guide the solder strip 600 to be processed as it moves forward in a preset direction; the surface treatment assembly is disposed on the mounting assembly 100 and is used to perform surface etching on the solder strip 600 to be processed.

[0066] When the solder ribbon 600a for preparing solar cell strings is processed by the aforementioned solder ribbon processing equipment, the guide component 200 guides the solder ribbon 600a as it moves forward in a preset direction. Therefore, when the surface treatment component performs surface etching, the solder ribbon 600a's orientation is more precise, allowing for better etching of its surface. Furthermore, since this application removes the oxide film from the solder ribbon 600a using the surface treatment component, flux is no longer needed in subsequent welding processes. This reduces the risk of flux evaporation and condensation on the stringer, thus lowering the probability of stringer malfunctions and minimizing downtime for maintenance. It also prevents evaporating flux from adhering to the solder ribbon 600a and the solar cells 700, thus avoiding corrosion and resulting in a photovoltaic module less prone to corrosion failure and with a longer service life.

[0067] The structure of the surface treatment component is described in detail below.

[0068] Please see Figures 4-7 , Figure 4 The diagram shows a nozzle assembly 300, a clamping assembly 400, and a weld strip 600 to be processed in a ribbon processing apparatus provided in some embodiments of this application. Figure 5 It shows Figure 4 The diagram shows the clamping assembly 400 clamping the solder strip 600 to be processed. Figure 6 This illustration shows a welding mechanism 500 welding a component 800 to be welded in a battery string production line provided in some embodiments of this application. Figure 7 It shows Figure 6 The diagram shows the assembly of the component to be welded 800 and the movable pressure fixture 510.

[0069] Please see Figure 1 and Figure 2 In some embodiments, the surface treatment assembly includes a gas source and at least one nozzle assembly 300. The gas source is used to provide a treatment gas; the nozzle assembly 300 includes at least one nozzle for plasmaizing the treatment gas provided by the gas source and spraying it onto the surface of the solder ribbon 600 to be treated for surface etching.

[0070] When the surface etching of the solder strip 600 to be treated needs to be performed, the gas source is connected to the processing gas. Then, the processing gas is plasmaized by the nozzle assembly 300 and sprayed onto the surface of the solder strip 600 to be treated. The plasma gas will impact the surface of the solder strip 600 at high speed, thereby removing the oxide film on the surface of the solder strip 600 to be treated.

[0071] In one specific embodiment, the processing gas is nitrogen protective gas.

[0072] Please see Figure 1 and Figure 2 In some embodiments, the surface treatment assembly includes a first nozzle group 310 and a second nozzle group 320; the first nozzle group 310 and the second nozzle group 320 are arranged on both sides of the solder strip 600 to be treated along its thickness direction, and are spaced apart from each other. Specifically, the thickness direction of the solder strip 600 to be treated is... Figure 1 and Figure 2 The zz direction in the text.

[0073] By setting the first nozzle group 310 and the second nozzle group 320 on both sides of the solder strip 600 to be processed along the thickness direction, the first nozzle group 310 and the second nozzle group 320 can respectively perform plasma etching on both sides of the solder strip 600 to be processed, thereby ensuring effective removal of the oxide film on the solder strip 600 to be processed.

[0074] Please see Figure 2 In some embodiments, the solder strip 600 to be processed has a first side and a second side along the thickness direction; a first nozzle group 310 is located on the first side of the solder strip 600 to be processed, and a second nozzle group 320 is located on the second side of the solder strip 600 to be processed; the distance d1 between any nozzle in the first nozzle group 310 and the surface of the first side is equal to the distance d2 between any nozzle in the second nozzle group 320 and the surface of the second side. By setting the distance d1 between any nozzle in the first nozzle group 310 and the surface of the first side to be equal to the distance d2 between any nozzle in the second nozzle group 320 and the surface of the second side, each nozzle in the first nozzle group 310 and the second nozzle group 320 is at the same distance from the processed surface of the solder strip 600 to be processed. When the two nozzles perform surface etching operations on the solder strip 600 to be processed in the same time, the etching thickness is also consistent, ultimately resulting in a more balanced etching condition on the two processed surfaces.

[0075] Please see Figure 2 In some embodiments, the distance d1 between any nozzle in the first nozzle group 310 and the surface on the first side satisfies the condition: 1mm≤d1≤3mm. By setting the distance d1 between any nozzle in the first nozzle group 310 and the surface on the first side to a range greater than or equal to 1mm and less than or equal to 3mm, the distance between any nozzle in the first nozzle group 310 and the surface on the first side is made more suitable, effectively ensuring the etching effect.

[0076] In one specific embodiment, the distance d1 between any nozzle in the first nozzle group 310 and the surface on the first side is 1 mm. In another specific embodiment, the distance d1 between any nozzle in the first nozzle group 310 and the surface on the first side is 3 mm. In yet another specific embodiment, the distance d1 between any nozzle in the first nozzle group 310 and the surface on the first side is 2 mm.

[0077] Please see Figure 2 In some embodiments, the distance d2 between any nozzle in the second nozzle group 320 and the surface on the second side satisfies the condition: 1mm ≤ d2 ≤ 3mm. By setting the distance d2 between any nozzle in the second nozzle group 320 and the surface on the second side to a range greater than or equal to 1mm and less than or equal to 3mm, the distance between any nozzle in the second nozzle group 320 and the surface on the second side is made more suitable, effectively ensuring the etching effect.

[0078] In one specific embodiment, the distance d2 between any nozzle in the second nozzle group 320 and the surface on the second side is 1 mm. In another specific embodiment, the distance d2 between any nozzle in the second nozzle group 320 and the surface on the second side is 3 mm. In yet another specific embodiment, the distance d2 between any nozzle in the second nozzle group 320 and the surface on the second side is 2 mm.

[0079] Please see Figure 1 and Figure 3 In some embodiments, the first nozzle assembly 310 includes a plurality of first nozzles 311 arranged in a direction perpendicular to the moving direction of the solder strip 600 to be processed; specifically, the direction perpendicular to the moving direction of the solder strip 600 to be processed is... Figure 1 and Figure 3 The yy' direction in the process. By setting multiple first nozzles 311 arranged in a direction perpendicular to the moving direction of the solder strip 600 to be processed, the surfaces of multiple solder strips 600 to be processed can be etched simultaneously, thereby making the entire solder strip processing equipment more efficient.

[0080] Please see Figure 3 In some embodiments, the distance d3 between any two adjacent first nozzles 311 is equal. By setting the distance d3 between any two adjacent first nozzles 311 to be equal, it is easier to install multiple first nozzles 311 onto the mounting assembly 100.

[0081] Please see Figure 1 and Figure 3In some embodiments, the second nozzle assembly 320 includes a plurality of second nozzles 321 spaced apart along a direction perpendicular to the moving direction of the solder strip 600 to be processed; specifically, the direction perpendicular to the moving direction of the solder strip 600 to be processed is... Figure 1 and Figure 3 The yy' direction in the process. By setting multiple second nozzles 321 arranged in a direction perpendicular to the moving direction of the solder strip 600 to be processed, the surfaces of multiple solder strips 600 to be processed can be etched simultaneously, thereby making the entire solder strip processing equipment more efficient.

[0082] In some embodiments, the distance d4 between any two adjacent second nozzles 321 is equal. By setting the distance d4 between any two adjacent second nozzles 321 to be equal, it is easier to install multiple second nozzles 321 onto the mounting assembly 100.

[0083] Please see Figure 1 and Figure 2 In some embodiments, the mounting assembly 100 includes a mounting base 110, a first mounting member 120, and a second mounting member 130. A guide assembly 200 is rotatably connected to the mounting base 110; the first mounting member 120 is connected to the mounting base 110; the first mounting member 120 is used to mount a first nozzle assembly 310; the second mounting member 130 is disposed opposite to the first mounting member 120 along the thickness direction of the weld strip 600 to be processed and is connected to the mounting base 110; the second mounting member 130 is used to mount a second nozzle assembly 320.

[0084] When it is necessary to assemble the welding strip processing equipment, the guide assembly 200 is rotatably connected to the mounting base 110, and the first nozzle group 310 is installed on the first mounting part 120, and the second nozzle group 320 is installed on the second mounting part 130. This realizes the assembly of the nozzle group 300 and the guide assembly 200 relative to the mounting assembly 100. The assembly of the first nozzle group 310, the second nozzle group 320 and the guide assembly 200 does not interfere with each other, and can be assembled by multiple people, which is quite convenient.

[0085] Please see Figure 1 and Figure 3In some embodiments, the first nozzle assembly 310 includes a plurality of spaced-apart first nozzles 311; the first mounting member 120 is provided with a plurality of first mounting protrusions 121; one end of each first nozzle 311 passes through one of the first mounting protrusions 121 and is fixedly connected to the first mounting protrusion 121. By providing a plurality of first mounting protrusions 121 on the first mounting member 120, and by having one end of each first nozzle 311 pass through and be fixedly connected to the first mounting protrusion 121, each first nozzle 311 can be mounted on one first mounting protrusion 121, with a one-to-one correspondence, which facilitates the installation of the first nozzles 311.

[0086] Please see Figure 1 In some embodiments, the second nozzle 321 nozzle assembly 300 includes a plurality of spaced-apart second nozzles 321; the second mounting member 130 is provided with a plurality of second mounting protrusions 131; one end of each second nozzle 321 passes through one of the second mounting protrusions 131 and is fixedly connected to the second mounting protrusion 131. By providing a plurality of second mounting protrusions 131 on the second mounting member 130, and by having one end of each second nozzle 321 pass through and be fixedly connected to the second mounting protrusion 131, each second nozzle 321 can be mounted on one second mounting protrusion 131, with a one-to-one correspondence, facilitating the installation of the second nozzles 321.

[0087] Please see Figures 1-3 In some embodiments, the guide assembly 200 includes a rotating shaft 210 and a guide wheel 220. The rotating shaft 210 is rotatably connected to the mounting assembly 100; the guide wheel 220 is sleeved on the rotating shaft 210, and a guide groove 221 is formed on the guide wheel 220 for at least partially accommodating the weld strip 600 to be processed. The rotating shaft 210 is rotatably mounted on the mounting assembly 100, and the guide wheel 220 is sleeved on the rotating shaft 210. When the rotating shaft 210 rotates about its own rotation axis 210, it can drive the guide wheel 220 to rotate, thereby guiding the movement of the weld strip 600 to be processed contained in the groove during rotation.

[0088] In some embodiments, the weld strip 600 to be processed has a gap with at least one side wall of the guide groove 221. By providing a gap between the weld strip 600 to be processed and at least one side wall of the guide groove 221, the side wall of the guide groove 221 is less likely to interfere with the movement of the weld strip 600 to be processed when the guide wheel 220 rotates as the weld strip 600 to be processed moves forward in a preset direction, thereby making the movement of the weld strip 600 to be processed smoother.

[0089] Please see Figure 1 and Figure 3 In some embodiments, there are multiple guide wheels 220, which are spaced apart along a direction perpendicular to the moving direction of the weld strip 600 to be processed; each guide wheel 220 is configured with at least one guide groove 221. By providing multiple guide wheels 220, and ensuring that each guide wheel 220 has at least one guide groove 221, the weld strip processing equipment can simultaneously perform surface etching operations on multiple weld strips 600 to be processed, resulting in high processing efficiency.

[0090] Please see Figure 4 and Figure 5 In some embodiments, the solder strip processing apparatus further includes a clamping assembly 400, which includes a first clamping member 410 and a second clamping member 420. The first clamping member 410 is used to clamp one end of the solder strip 600 to be processed along the moving direction of the solder strip 600 to be processed; the second clamping member 420 is spaced apart from the first clamping member 410 along the moving direction of the solder strip 600 to be processed; the second clamping member 420 is used to clamp the other end of the solder strip 600 to be processed along the moving direction of the solder strip 600 to be processed; wherein, one of the first clamping member 410 and the second clamping member 420 is capable of moving closer to or further away from the other. With the cooperation of the first clamping member 410 and the second clamping member 420, when the surface etching oxide film is performed on the solder strip 600 to be treated, both ends of the solder strip 600 to be treated can be effectively fixed and straightened by the first clamping member 410 and the second clamping member 420. In this way, the solder strip 600 to be treated is not easy to bend during the surface etching process, and the surface etching effect is better.

[0091] This application also provides a battery string production line, which includes the ribbon processing equipment described in any of the above embodiments. When processing battery strings through this battery string production line, the ribbon processing equipment described above can first perform a surface etching operation on the ribbon 600a to remove the oxide film on the surface of the ribbon 600a. This eliminates the need for flux when welding the ribbon 600a to the battery cell 700 in the subsequent process. This reduces the risk of flux volatilization and condensation on the string welding machine on the battery string production line, thus reducing the probability of string welding machine failure and minimizing downtime for maintenance. Furthermore, it avoids the possibility of volatilized flux adhering to the ribbon 600a and the battery cell 700 and corroding them. As a result, the final photovoltaic module is less prone to corrosion failure and has a longer service life.

[0092] Please see Figure 6In some embodiments, the battery string production line includes a gripper, a conveying assembly 900, and a welding mechanism 500. The gripper sequentially picks up battery cells 700 and solder strips 600a processed by a solder strip processing device to form a component 800 to be welded. The conveying assembly 900 transports the component 800 to a preset welding station, and the welding mechanism 500 performs welding operations on the component 800 at the preset welding station. When battery string welding preparation is required, the solder strip 600a is first surface-etched using a solder strip processing device to remove the oxide film on the solder strip 600a. Then, the gripper sequentially picks up the battery cells 700 and the solder strips 600a processed by the solder strip processing device, thereby forming the battery cells 700 and solder strips 600a as shown in the image. Figure 7 The component 800 to be welded is shown. At this time, the component 800 to be welded is transported to the preset welding station by the conveying component 900, and then the welding mechanism 500 performs the welding operation on the component 800 to be welded at the preset welding station.

[0093] It should be noted that the structure of component 800 to be welded before the battery string is welded is as follows: Figure 7 As shown, the front of one of two adjacent solar cells 700 is connected to the back of the other through a solder ribbon 600a, thus enabling multiple solar cells 700 to be connected in series through the conductive effect of the solder ribbon 600a.

[0094] Please see Figure 6 and combined Figure 7 In some embodiments, the welding mechanism 500 includes a movable pressure fixture 510 and a heating element 520. The movable pressure fixture 510 is gripped and moved above the component 800 to be welded by a gripper. Then, the heating element 520 heats the component 800 after it is pressed by the movable pressure fixture 510, ultimately welding together to form a battery string. By setting the movable pressure fixture 510, the component 800 to be welded is subjected to a certain pressure during welding, thereby reducing the possibility of incomplete welds and achieving better welding results.

[0095] This application also provides a battery string, which is manufactured using the battery string production line described in the above embodiments. The battery string manufactured by the battery string production line provided in this embodiment has better welding effect, is less likely to have poor soldering, and can reduce the corrosion of the battery string by flux, resulting in a longer service life of the battery string.

[0096] 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.

[0097] 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 welding strip processing device, characterized in that, The welding strip processing equipment includes: Install components (100); Guide assembly (200), rotatably connected to mounting assembly (100), guide assembly (200) is used to guide the weld strip (600) to be processed as it moves forward in a preset direction; and A surface treatment component is disposed on the mounting component (100) for surface etching of the solder strip (600) to be treated.

2. The welding strip processing equipment according to claim 1, characterized in that, The surface treatment component includes: Gas source, used to provide processing gas; and At least one nozzle group, the nozzle group including at least one nozzle for plasmaing the processing gas provided by the gas source and spraying it onto the surface of the solder strip (600) to be processed, so as to perform surface etching on the solder strip (600).

3. The welding strip processing equipment according to claim 2, characterized in that, The surface treatment assembly includes a first nozzle group (310) and a second nozzle group (320); The first nozzle group (310) and the second nozzle group (320) are arranged on both sides of the weld strip (600) to be treated along the thickness direction, and are spaced apart from the weld strip (600) to be treated.

4. The welding strip processing equipment according to claim 3, characterized in that, The weld strip to be processed (600) has a first side and a second side along the thickness direction; the first nozzle group (310) is located on the first side of the weld strip to be processed (600), and the second nozzle group (320) is located on the second side of the weld strip to be processed (600). The distance d1 between any of the nozzles in the first nozzle group (310) and the surface on the first side is equal to the distance d2 between any of the nozzles in the second nozzle group (320) and the surface on the second side.

5. The welding strip processing equipment according to claim 4, characterized in that, The distance d1 between the nozzle in the first nozzle group (310) and the surface on the first side satisfies the condition: 1mm≤d1≤3mm; The distance d2 between the nozzle in the second nozzle group (320) and the surface on the second side satisfies the condition: 1mm≤d2≤3mm.

6. The welding strip processing equipment according to claim 3, characterized in that, The first nozzle group (310) includes a plurality of first nozzles (311) arranged in a direction perpendicular to the moving direction of the weld strip (600) to be processed. The second nozzle group (320) includes a plurality of second nozzles (321) spaced apart in a direction perpendicular to the direction of movement of the weld strip (600) to be processed.

7. The welding strip processing equipment according to claim 6, characterized in that, The spacing d3 between any two adjacent first nozzles (311) is equal; and / or The distance d4 between any two adjacent second nozzles (321) is equal.

8. The welding strip processing equipment according to claim 3, characterized in that, The mounting component (100) includes: Mounting base (110), the guide assembly (200) is rotatably connected to the mounting base (110); A first mounting component (120) is connected to the mounting base (110); the first mounting component (120) is used to mount the first nozzle assembly (310); and The second mounting component (130) is disposed opposite to the first mounting component (120) along the thickness direction of the weld strip (600) to be processed, and is connected to the mounting base (110); the second mounting component (130) is used to install the second nozzle assembly (320).

9. The welding strip processing equipment according to claim 8, characterized in that, The first nozzle group (310) includes a plurality of first nozzles (311) arranged at intervals. The first mounting member (120) is provided with a plurality of first mounting protrusions (121); One end of each of the first nozzles (311) passes through one of the first mounting protrusions (121) and is fixedly connected to the first mounting protrusion (121).

10. The welding strip processing equipment according to claim 8, characterized in that, The second nozzle group (320) includes a plurality of second nozzles (321) spaced apart; The second mounting member (130) is provided with a plurality of second mounting protrusions (131); One end of each of the second nozzles (321) passes through one of the second mounting protrusions (131) and is fixedly connected to the second mounting protrusion (131).

11. The welding strip processing equipment according to claim 1, characterized in that, The guide component (200) includes: A rotating shaft (210) is rotatably connected to the mounting assembly (100); A guide wheel (220) is sleeved on the rotating shaft (210), and a guide groove (221) is constructed on the guide wheel (220). The guide groove (221) is used to at least partially accommodate the welding strip (600) to be processed.

12. The welding strip processing equipment according to claim 11, characterized in that, The weld strip to be processed (600) has a gap with at least one side wall of the guide groove (221).

13. The welding strip processing equipment according to claim 11, characterized in that, The number of guide wheels (220) is multiple, and the multiple guide wheels (220) are spaced apart in a direction perpendicular to the moving direction of the weld strip (600) to be processed; Each of the guide wheels (220) is configured with at least one of the guide grooves (221).

14. The welding strip processing equipment according to any one of claims 1-13, characterized in that, The welding strip processing equipment further includes a clamping assembly (400), the clamping assembly (400) comprising: A first clamping member (410) is used to clamp one end of the weld strip (600) to be processed along the moving direction of the weld strip (600); and The second clamping member (420) is spaced apart from the first clamping member (410) along the moving direction of the weld strip (600) to be processed; the second clamping member (420) is used to clamp the other end of the weld strip (600) to be processed along the moving direction of the weld strip (600); One of the first clamping member (410) and the second clamping member (420) is capable of moving closer to or further away from the other.

15. A battery string production line, characterized in that, Includes the welding strip processing equipment as described in any one of claims 1-14.

16. The battery string production line according to claim 15, characterized in that, The battery string production line includes: A gripper is used to sequentially grip the battery cell (700) and the solder strip (600a) processed by the solder strip processing equipment to form a component to be welded (800). A conveying assembly (900) is used to convey the component to be welded (800) to a preset welding station, and A welding mechanism (500) is used to perform welding operations on the component (800) to be welded at the preset welding station.

17. A battery string, characterized in that, It is manufactured using the battery string production line as described in claim 16.

Images