Solder strip handling device, handling method and battery string production apparatus

Abstract

The application provides a welding strip processing device, a processing method and a battery string production equipment. The welding strip processing device comprises a welding strip shaping mechanism, a welding strip cutting mechanism and a welding strip traction mechanism. The welding strip traction mechanism draws out N welding strips with an initial cross-sectional shape of an equilateral triangle. The welding strip shaping mechanism is configured to clamp both ends of a to-be-shaped section of the N welding strips after a predetermined length of the welding strip passes through the welding strip shaping mechanism each time, and turn the to-be-shaped section into an inverted triangular section, and the predetermined length of the welding strip constitutes an equilateral triangular section. The welding strip cutting mechanism is configured to cut the N welding strips when the welding strip traction mechanism draws the N welding strips to a predetermined position, so as to obtain a welding strip section group composed of N welding strip sections, wherein each cut welding strip section comprises an equilateral triangular section and an inverted triangular section. Since the preparation and shaping of the inverted triangular section are performed after the N welding strips are drawn out, the node position alignment on the N welding strips can be ensured, and manual adjustment for the node alignment is not required.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cell production equipment, specifically a welding strip processing device. Background Technology

[0002] During battery series connection, adjacent battery cells are connected via a group of solder strip segments, which consists of N solder strip segments. For example... Figures 1 to 3 As shown, specifically, in the welding strip group, half of each welding strip 100 is welded to the back of one of the adjacent solar cells 200, and the other half of the welding strip is welded to the front of another solar cell 200 in the adjacent solar cells.

[0003] To increase the light-receiving area of ​​the solar cell, a common solder strip structure is as follows: the half of the solar cell 200 soldered on the front side is an equilateral triangle segment 101 with a cross-section of an equilateral triangle (e.g., a triangle with the vertex facing upwards), and the half of the solar cell 200 soldered on the back side is an inverted triangle segment 102 with a cross-section of an inverted triangle (e.g., a triangle with the vertex facing downwards).

[0004] To obtain the aforementioned weld strip segments, the existing processing method involves pre-producing weld strips composed of alternating equilateral and inverted triangular segments, with the junction between adjacent equilateral and inverted triangular segments called nodes. These weld strips are then wound into multiple rolls for use by a cell stringing machine. The cell stringing machine provides N parallel weld strips via a weld strip feeding device, and then a weld strip cutting mechanism cuts weld strip segment groups from the N weld strips.

[0005] However, due to the stretching of the welding strip during the production stage and the winding and unwinding process, the nodes on each welding strip are usually uneven when the welding strip feeding device releases N parallel welding strips. In order to ensure the welding quality of the battery string, a lot of manual adjustment is required to ensure the node alignment. Summary of the Invention

[0006] To address the aforementioned technical problems, this application provides a welding strip processing device, the detailed technical solution of which is as follows: A welding strip processing device includes a welding strip shaping mechanism, a welding strip cutting mechanism, and a welding strip traction mechanism arranged sequentially along a first horizontal direction, wherein: The welding strip traction mechanism is configured to clamp N parallel welding strips that pass sequentially through the welding strip shaping mechanism and the welding strip cutting mechanism, and to traction the N welding strips along the first horizontal direction. The initial cross-sectional shape of the welding strip is an equilateral triangle. The welding strip shaping mechanism includes a first clamping assembly and a flipping assembly. The first clamping assembly includes a first clamping unit and a second clamping unit. The first clamping unit and the second clamping unit are configured to clamp the two ends of N welding strip segments to be shaped after each predetermined length of welding strip passes through the first clamping assembly. The flipping assembly is configured to flip the N clamped segments to be shaped by a first angle to flip the segments to be shaped into inverted triangular segments. The cross-sectional shape of the welding strip in the inverted triangular segments is an inverted triangle. The predetermined length of welding strip forms an equilateral triangular segment. The cross-sectional shape of the welding strip in the equilateral triangular segments is an equilateral triangle. The welding strip cutting mechanism is configured to cut N welding strips when the welding strip traction mechanism pulls N welding strips to a predetermined position, so as to obtain a welding strip segment group consisting of N cut welding strip segments, wherein each cut welding strip segment includes an equilateral triangle segment and an inverted triangle segment.

[0007] The welding strip processing apparatus of this application has N welding strips pulled out by the welding strip traction mechanism with an initial cross-sectional shape of equilateral triangles, meaning that the N welding strips released by the welding strip feeding device are equilateral triangular welding strips. After the N welding strips are released, the welding strip processing apparatus of this application uses a welding strip shaping mechanism to shape the target areas of the N welding strips, thereby shaping the N welding strips into a structure with alternating equilateral and inverted triangular segments. Ultimately, this ensures that welding strip segments composed of equilateral and inverted triangular segments can be obtained.

[0008] Since the inverted triangular segment is formed only after the N welding strips are released from the welding strip feeding device and pulled into place (nodes are generated synchronously), it can ensure that the nodes on the N welding strips are aligned, eliminating the need for manual adjustment to align the nodes.

[0009] In some embodiments, the first angle is 60° or 180°.

[0010] Generally, the three sides of the cross-section of the solder strip are of equal length. Therefore, flipping the section of the solder strip to be shaped by 60° or 180° will ensure that the section is flipped into an inverted triangle. Of course, when the three sides of the cross-section of the solder strip are not of equal length, flipping the section of the solder strip to be shaped by 180° will also ensure that the section is flipped into an inverted triangle.

[0011] In some embodiments, N first clamping units are spaced apart along the second horizontal direction, and the N first clamping units are used to clamp the first ends of N segments to be shaped in a one-to-one correspondence; or, one first clamping unit is provided, and one first clamping unit is used to clamp the first ends of n segments to be shaped simultaneously; N second clamping units are spaced apart along the second horizontal direction, and the N second clamping units correspond one-to-one with N welding strips; or, one second clamping unit is provided, and one second clamping unit is used to clamp the second ends of n segments to be shaped simultaneously.

[0012] Two implementation methods for the first clamping unit are provided, both of which can clamp the first ends of N segments to be shaped. In this method, the first ends of the N segments to be shaped are clamped one by one by the N first clamping units, which can avoid the situation where the first ends of some solder strips are not clamped properly.

[0013] Similarly, two implementation methods for the second clamping unit are provided, both of which can clamp the second ends of N segments to be shaped. The N second clamping units clamp the second ends of the N segments to be shaped in a one-to-one correspondence, which can avoid the situation where the second ends of some of the solder strips are not properly clamped.

[0014] In some embodiments, N flipping components are spaced apart along the second horizontal direction, and the N flipping components correspond one-to-one with the N solder strips. Each flipping component is configured to clamp the corresponding segment to be shaped and to drive the segment to be shaped to flip at a first angle to form an inverted triangular segment, wherein the second horizontal direction is perpendicular to the first horizontal direction.

[0015] By having N flipping components flip the N solder strips to be shaped in a one-to-one correspondence, it can be ensured that all N solder strips to be shaped are flipped into inverted triangular segments.

[0016] In some embodiments, the flipping assembly includes a flipping unit, wherein one flipping unit is provided, and one flipping unit is used to clamp N sections of solder strips to be shaped and flip them at a first angle; or, two flipping units are provided along a first horizontal direction, and the two flipping units provided along the first horizontal direction are respectively used to clamp the two ends of a section of solder strip to be shaped and flip it at a first angle; or, at least three flipping units are provided along the first horizontal direction, and at least three flipping units provided along the first horizontal direction are used to clamp a section of solder strip to be shaped and flip it at a first angle.

[0017] The number of flipping units can be specifically selected based on the specific length of the section of the welding strip to be shaped, so as to ensure that the section to be shaped between the first clamping unit and the second clamping unit is flipped in all directions.

[0018] In some embodiments, the solder strip processing apparatus further includes a first flattening mechanism and a second flattening mechanism, wherein: the first flattening mechanism is disposed between the flipping assembly and the first clamping unit, and the second flattening mechanism is disposed between the flipping assembly and the second clamping unit; the first flattening mechanism is configured to flatten the connection between the formed inverted triangular segment and the adjacent equilateral triangular segment on the first side after the segment to be shaped is flipped by a first angle; and the second flattening mechanism is configured to flatten the connection between the formed inverted triangular segment and the adjacent equilateral triangular segment on the second side after the segment to be shaped is flipped by a first angle.

[0019] Because the solder strip has a certain thickness and the solar cells are thin and brittle, the edges of the solar cells are easily damaged in the middle of the solder strip between two adjacent solar cells when the solar cell strings are laminated into solar panel modules. Therefore, it is necessary to flatten the middle of the solder strip (i.e., the connection between the inverted triangle segment and the upright triangle segment). By setting a first flattening mechanism and a second flattening mechanism between the flipping assembly and the first clamping unit, and between the flipping assembly and the second clamping unit, respectively, automatic flattening of the connection between the inverted triangle segment and the upright triangle segment on the solder strip is achieved.

[0020] Furthermore, by placing the first flattening mechanism between the flipping assembly and the first clamping unit, and the second flattening mechanism between the flipping assembly and the second clamping unit, the length of the welding strip processing device of this application in the first horizontal direction can be shortened, saving space.

[0021] In some embodiments, the solder strip processing apparatus further includes a third flattening mechanism and a fourth flattening mechanism located after the solder strip shaping mechanism, wherein: the third flattening mechanism is configured to perform flattening processing on the connection between the inverted triangular segment and the adjacent equilateral triangular segment on the first side; and the fourth flattening mechanism is configured to perform flattening processing on the connection between the inverted triangular segment and the adjacent equilateral triangular segment on the second side.

[0022] Because the solder strip has a certain thickness and the solar cells are thin and brittle, the edges of the solar cells are easily damaged in the middle of the solder strip between adjacent cells during the lamination process of the solar cell string into solar panel modules. Therefore, it is necessary to flatten the middle of the solder strip (i.e., the connection between the inverted triangle segment and the equilateral triangle segment). By setting a first flattening mechanism and a second flattening mechanism after the solder strip forming mechanism, automatic flattening of the connection between the inverted triangle segment and the equilateral triangle segment on the solder strip is achieved.

[0023] In addition, placing the third and fourth flattening mechanisms after the strip forming mechanism can avoid interference between the third and fourth flattening mechanisms and the strip forming mechanism.

[0024] In some embodiments, the welding strip processing apparatus further includes a second clamping assembly located after the welding strip shaping mechanism. The second clamping assembly includes a third clamping unit and a fourth clamping unit. The third clamping unit is located before the third flattening mechanism, and the fourth clamping unit is located after the fourth flattening mechanism. The third clamping unit and the fourth clamping unit are configured to clamp the corresponding welding strips before the third flattening mechanism and the fourth flattening mechanism flatten the inverted triangular segments at both ends.

[0025] By clamping the welding strip from both the front and rear sides of the third and fourth flattening mechanisms using the third and fourth clamping units, it is possible to prevent the inverted triangular section of the welding strip from deflecting due to uneven force during the flattening process.

[0026] In some embodiments, the solder strip processing apparatus further includes a plurality of anti-rollover mechanisms spaced apart along a first horizontal direction in front of the solder strip forming mechanism. The anti-rollover mechanism has N anti-rollover channels corresponding to N solder strips along a second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction. Each solder strip passes through the corresponding anti-rollover channel, and the anti-rollover channel is configured to limit the solder strip from rolling over.

[0027] By setting anti-overturning mechanisms at intervals along the traction path of the welding strip, the anti-overturning limit of the welding strip is achieved, so that the welding strip enters the welding strip shaping mechanism in an equilateral triangular state.

[0028] In some embodiments, the anti-rollover mechanism includes N anti-rollover components arranged along a second horizontal direction and corresponding one-to-one with N welding strips. Each anti-rollover component includes an upper roller, a lower roller, and a first elastic member arranged vertically. The mounting shafts of the upper roller and the lower roller both extend along the second horizontal direction. A first groove with a triangular cross-section is arranged circumferentially on the circumferential surface of the upper roller. The first groove and the circumferential surface of the lower roller cooperate to form the anti-rollover channel. There is a gap between the inner wall of the first groove and the two inclined surfaces of the welding strip located in the anti-rollover channel. The first elastic member is configured to elastically press at least one of the upper roller and the lower roller against the other.

[0029] The anti-tipping mechanism for the welding strip is implemented by upper and lower rollers with first grooves, which can rotate under the drive of the welding strip. Therefore, the anti-tipping component achieves the anti-tipping effect while avoiding obstruction of the normal conveying of the welding strip, thus preventing it from being stretched and deformed. Furthermore, each welding strip is protected against tipping by an independent anti-tipping component, facilitating the installation and maintenance of the anti-tipping components. For example, if one anti-tipping component malfunctions, only that component needs to be repaired or replaced.

[0030] Since there are gaps between the inner wall of the first groove and the two inclined surfaces of the solder strip located in the anti-overturning channel, the inner wall of the first groove can avoid scratching the two inclined surfaces of the solder strip and damaging the solder on the surface of the solder strip.

[0031] By incorporating a first elastic element, the upper and lower rollers are elastically pressed together. This creates a closed anti-tipping channel between the first groove and the circumference of the lower roller, improving anti-tipping stability. Furthermore, the elastic contact between the upper and lower rollers absorbs vertical vibrations of the welding strip, reducing the risk of scratch damage to the surface of the welding strip.

[0032] In some embodiments, the anti-rollover mechanism includes an upper roller, a lower roller, and a second elastic member arranged in pairs. The second elastic member is configured to elastically press at least one of the upper roller and the lower roller against the other. Both the upper roller and the lower roller extend along the second horizontal direction. N concentric grooves with triangular cross-sections are spaced along the second horizontal direction on the circumferential surface of the upper roller. Each second groove cooperates with the circumferential surface of the lower roller to form an anti-rollover channel. A gap exists between the inner wall of the second groove and the two inclined surfaces of the welding strip located within the anti-rollover channel. Alternatively, both the upper roller and the lower roller extend along the second horizontal direction. N upper rollers are provided, each corresponding to one welding strip. A third groove with a triangular cross-section is provided on the circumferential surface of the upper roller. Each second groove cooperates with the circumferential surface of the lower roller to form an anti-rollover channel. A gap exists between the inner wall of the second groove and the two inclined surfaces of the welding strip located within the anti-rollover channel.

[0033] The anti-overturning limit of the welding strip is implemented by upper and lower rollers with second grooves, which can rotate under the drive of the welding strip. Therefore, the anti-overturning component can achieve the anti-overturning effect of the welding strip while avoiding obstruction of the normal conveying of the welding strip, which would cause the welding strip to be stretched and deformed.

[0034] Because there are gaps between the inner wall of the second groove and the two inclined surfaces of the solder strip located in the anti-overturning channel, the inner wall of the second groove can avoid scratching the two inclined surfaces of the solder strip and damaging the solder on the surface of the solder strip.

[0035] By incorporating a second elastic element, the upper and lower rollers are elastically pressed together. This creates a closed anti-overturning channel between the second groove and the circumferential surface of the lower roller, improving anti-overturning stability. Furthermore, the elastic contact between the upper and lower rollers absorbs vertical vibrations of the solder strip, reducing the risk of scratch damage to the solder strip surface.

[0036] In some embodiments, the welding strip processing apparatus further includes a clamping mechanism disposed between the welding strip shaping mechanism and the welding strip cutting mechanism.

[0037] By installing a clamping mechanism between the strip shaping mechanism and the strip cutting mechanism, the clamping mechanism can clamp the strip when the strip cutting mechanism cuts it shorter, thereby preventing the new free end of the strip from retracting after cutting. This allows the strip traction mechanism to smoothly clamp the free end of the strip from the strip cutting mechanism during the next traction operation. Furthermore, the clamping mechanism can also cooperate to clamp the strip when the strip shaping mechanism flips it.

[0038] This application also provides a battery string production apparatus, which includes a conveying device, a fixing device, a battery cell supply device, and the welding strip processing device described in any one of the above embodiments, wherein: The welding strip traction mechanism and the battery cell supply device of the welding strip processing device are configured to lay the welding strip segments and battery cells in a neat string onto the conveying device; The conveying device is configured to transport the laid-out battery cells and welding strip segments to the bonding station; A fastening device is installed at the fastening station and is configured to fasten the welding strip group to the corresponding battery cell.

[0039] By coordinating a conveying device, a fixing device, a cell supply device, and a solder strip processing device, the battery string production equipment provided in this application achieves automatic welding of battery cells into strings. It also ensures the consistency of each solder strip segment in the solder strip group welded to adjacent battery cells.

[0040] This application also provides a method for processing solder strips, which is implemented by the solder strip processing apparatus described in any of the above claims, the method comprising: N parallel welding strips are pulled sequentially through the welding strip shaping mechanism and the welding strip cutting mechanism using a welding strip traction mechanism. The welding strip shaping mechanism is used to shape the N welding strips that enter the shaping station at intervals, so that alternating equilateral and inverted triangular segments are formed on each welding strip, and every two adjacent equilateral and inverted triangular segments constitute a welding strip segment. When the welding strip traction mechanism pulls N welding strips to a predetermined position, the welding strip cutting mechanism cuts the N welding strips to obtain a welding strip segment group consisting of N welding strip segments. The strip shaping mechanism is used to shape the N strips of solder that are intermittently introduced into the shaping station, including: N flipping components are used to fix the two ends of the corresponding solder strip to be shaped from both ends, and to drive the segment to be shaped to be flipped at a first angle to form an inverted triangle segment.

[0041] The welding strip processing method provided in this application involves N welding strips pulled out by a welding strip traction mechanism, with an initial cross-sectional shape of equilateral triangles. In other words, the N welding strips released by the welding strip feeding device are equilateral triangular welding strips. After the N welding strips are released, the welding strip processing device of this application shapes the target areas of the N welding strips using a welding strip shaping mechanism, thereby shaping the N welding strips into a structure with alternating equilateral and inverted triangular segments. This ultimately ensures that welding strip segments composed of equilateral and inverted triangular segments are obtained.

[0042] Since the inverted triangular segment is formed only after the N welding strips are released from the welding strip feeding device and pulled into place (nodes are generated synchronously), it can ensure that the nodes on the N welding strips are aligned, eliminating the need for manual adjustment to align the nodes. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the welding of two adjacent battery cells in a battery string; Figure 2 This is a schematic diagram of a solar cell with a equilateral triangular segment welded to the front. Figure 3 This is a schematic diagram of a battery cell with an inverted triangular section on the back welded with a solder strip. Figure 4 Schematic diagrams of equilateral and inverted triangles; Figure 5 This is a schematic diagram of the processing of N solder strips by the solder strip processing device in the embodiments of this application; Figure 6 This is a cross-sectional view of the anti-flipping component in an embodiment of this application.

[0044] Figures 1 to 6 Includes: 1. Welding strip shaping mechanism, 11. First clamping unit, 12. Second clamping unit, 13. Flipping assembly, 131. Welding strip cutting mechanism, 2. Welding strip traction mechanism, 3. First flattening mechanism, 4. Second flattening mechanism, 5. Third flattening mechanism, 6. Fourth flattening mechanism, 7. Anti-flipping mechanism, 8. Upper roller, 81. Lower roller, 82. First groove, 83. Pressing mechanism, 9. Welding strip segment, 100. Right triangle segment, 101. Inverted triangle segment, 102. Flat segment, 103. Detailed Implementation

[0045] To make the above-mentioned objects, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0046] Before introducing the embodiments of this application, it is necessary to explain the concepts of "equilateral triangle" and "inverted triangle" mentioned in this application.

[0047] The terms "equilateral triangle" and "inverted triangle" used in this application are not formal classifications in geometry. For example, "equilateral triangle" is not the same as an equilateral triangle in geometry. The terms "equilateral triangle" and "inverted triangle" used in this application actually refer to two types of triangles with vertices facing opposite directions.

[0048] For example, such as Figure 4 As shown in (a), equilateral triangle a1 is the triangle with its vertex pointing upwards, while inverted triangle b1 is the triangle with its vertex pointing downwards; and so on... Figure 4 As shown in (b), the equilateral triangle a2 is a triangle with its vertex facing down, while the inverted triangle b2 is a triangle with its vertex facing up.

[0049] As described in the background section, the existing method for obtaining solder strips with alternating equilateral and inverted triangular segments involves pre-producing solder strips composed of alternating equilateral and inverted triangular segments, with the junction between adjacent segments called nodes. These solder strips are then wound into multiple rolls for use by a cell stringing machine.

[0050] The cell stringing machine provides N parallel solder strips through a solder strip feeding device, and then a solder strip cutting mechanism cuts solder strip segments from the N solder strips. However, due to the solder strip stretching during the solder strip transport and unwinding process in the solder strip roll production stage, the nodes on each solder strip are usually uneven when the solder strip feeding device releases the N parallel solder strips. In order to ensure the quality of cell string welding, a large amount of manual adjustment is required to ensure the nodes are aligned.

[0051] Therefore, this application provides a solder strip processing apparatus. For example... Figure 5 As shown, the welding strip processing device provided in this application includes a welding strip shaping mechanism 1, a welding strip cutting mechanism 2, and a welding strip traction mechanism 3 arranged sequentially along a first horizontal direction, wherein: The welding strip traction mechanism 3 is configured to clamp N parallel welding strips (e.g., 11 in the figure) that sequentially pass through the welding strip shaping mechanism 1 and the welding strip cutting mechanism 2, and to traction the N welding strips along a first horizontal direction (e.g., the X direction). The initial shape of the cross-section of the welding strip is an equilateral triangle. This equilateral triangle can be... Figure 4 The equilateral triangle a1 with its vertex pointing upwards shown in (a) can also be Figure 4 The equilateral triangle a2 with its vertex pointing downwards is shown in (b).

[0052] The welding strip shaping mechanism 1 includes a first clamping assembly and a flipping assembly 13. The first clamping assembly includes a first clamping unit 11 and a second clamping unit 12. The first clamping unit 11 and the second clamping unit 12 are configured to clamp the two ends of N welding strip segments to be shaped each time a predetermined length of welding strip passes through the first clamping assembly. The flipping assembly 13 is configured to flip the N clamped segments to be shaped by a first angle to flip the segments to be shaped into inverted triangular segments 102.

[0053] The cross-sectional shape of the solder strip in the inverted triangular segment 102 is an inverted triangle, and the solder strip of the predetermined length forms the equilateral triangular segment 101, the cross-sectional shape of which is also an equilateral triangle. Of course, if the equilateral triangle is... Figure 4 If the equilateral triangle a1 with its vertex pointing upwards is shown in (a), then the inverted triangle is... Figure 4 The inverted triangle b1 with its vertex pointing downwards, as shown in (a). If the equilateral triangle is... Figure 4 In (b), the equilateral triangle a1 with its vertex pointing downwards is then the inverted triangle is... Figure 4The inverted triangle b2 with its vertex pointing upwards, as shown in (b).

[0054] The welding strip cutting mechanism 2 is configured to cut the N welding strips when the welding strip traction mechanism 3 pulls the N welding strips to a predetermined position, thereby obtaining a welding strip segment group consisting of N cut welding strip segments 100, wherein each cut welding strip segment 100 includes an equilateral triangle segment 101 and an inverted triangle segment 102.

[0055] As can be seen, in the ribbon processing apparatus of this application, the initial cross-sectional shape of the N ribbons pulled out by the ribbon traction mechanism 3 is an equilateral triangle, that is, the N ribbons released by the ribbon feeding device are ribbons with an equilateral triangle cross-section. After the N ribbons are released, the ribbon processing apparatus of this application shapes the target parts of the N ribbons through the ribbon shaping mechanism 1, thereby shaping the N ribbons into a structure in which equilateral triangle segments 101 and inverted triangle segments 102 are arranged alternately. The ribbon cutting mechanism 2 then cuts ribbon segments including equilateral triangle segments 101 and inverted triangle segments 102 from the N ribbons one by one to meet the requirements of battery stringing.

[0056] Since the inverted triangular segment 102 is formed only after the N solder strips are released, the nodes between the equilateral triangular segment 101 and the inverted triangular segment 102 on the N solder strips can be aligned, eliminating the need for extensive manual adjustments to align the nodes.

[0057] Generally, the three sides of the cross-section of a triangular weld strip are of equal length. Therefore, flipping the section to be shaped by 60° or 180° will ensure that the section to be shaped is flipped into an inverted triangular section 102. Of course, if the three sides of the cross-section of the weld strip are not of equal length, flipping the section to be shaped by 180° will also ensure that the section to be shaped is flipped into an inverted triangular section 102.

[0058] Continue to refer to Figure 5 Optionally, N first clamping units 11 are spaced apart along a second horizontal direction (such as the Y direction). The N first clamping units 11 are used to clamp the first ends (e.g., the left ends) of the N segments to be shaped in a one-to-one correspondence. The N first clamping units 11 clamping the first ends of the N segments to be shaped in a one-to-one correspondence can ensure that the first ends of the N segments to be shaped are firmly clamped, avoiding the situation where the first ends of some of the weld strips are not properly clamped.

[0059] The first clamping unit 11 can be, for example, two clamping jaws arranged in a vertical pair, or two clamping jaws arranged horizontally along the second horizontal direction. When the two clamping jaws are open, the corresponding welding strip can pass through, and when the two clamping jaws are closed, the corresponding welding strip is clamped.

[0060] Of course, to simplify the structure of the first clamping unit 11, only one first clamping unit 11 may be provided. One first clamping unit 11 is used to clamp the first ends (e.g., the left ends) of N segments to be shaped at the same time. For example, the first clamping unit 11 includes two clamping plates arranged in pairs and extending along the second horizontal direction. When the two clamping plates are open, N welding strips can pass through, and when the two clamping plates are closed, they clamp N welding strips.

[0061] Similarly, N second clamping units 12 can be spaced apart along the second horizontal direction (such as the Y direction). Each of the N second clamping units 12 corresponds to one of the N welding strips and is used to clamp the second ends (e.g., the right ends) of the N segments to be shaped. The N second clamping units 12 clamping the second ends of the N segments to be shaped in a one-to-one manner can ensure that the second ends of the N segments to be shaped are firmly clamped, avoiding the situation where the second ends of some welding strips are not properly clamped.

[0062] The second clamping unit 12 can be, for example, two clamping jaws arranged in a vertical pair, or two clamping jaws arranged horizontally along the second horizontal direction. When the two clamping jaws are open, the corresponding welding strip can pass through, and when the two clamping jaws are closed, the corresponding welding strip is clamped.

[0063] Similarly, to simplify the structure of the second clamping unit 12, only one second clamping unit 12 may be provided. One second clamping unit 12 is used to simultaneously clamp the second ends (e.g., the right ends) of N segments to be shaped. For example, the second clamping unit 12 may include two clamping plates arranged in pairs and extending along the second horizontal direction. When the two clamping plates are open, N welding strips can pass through, and when the two clamping plates are closed, they clamp the N welding strips.

[0064] Optionally, N flipping components 13 are spaced apart along the second horizontal direction (such as the Y direction). The N flipping components 13 correspond one-to-one with the N solder strips. Each flipping component 13 is configured to clamp the corresponding segment to be shaped and drive the segment to be shaped to flip at a first angle to form an inverted triangle segment 102.

[0065] N flipping components 13 flip the N solder strips to be shaped in a one-to-one correspondence, which can ensure that the N solder strips to be shaped are all flipped into inverted triangle segments 102.

[0066] like Figure 5 In the embodiment shown, the flipping assembly 13 includes two flipping units 131. The two flipping units 131 are respectively located close to the first clamping unit 11 and the second clamping unit 12. The two flipping units 131 cooperate to perform clamping and flipping operations on the section to be shaped between the first clamping unit 11 and the second clamping unit 12 from positions close to both ends, thereby ensuring that the section to be shaped is flipped in all directions.

[0067] Of course, in some other embodiments, if the length of the section to be shaped between the first clamping unit 11 and the second clamping unit 12 is short, the flipping assembly 13 may also include only one flipping unit 131. The flipping unit 131 performs all-round clamping and flipping of the entire section to be shaped between the first clamping unit 11 and the second clamping unit 12.

[0068] Of course, in some other embodiments, if the length of the section to be shaped between the first clamping unit 11 and the second clamping unit 12 is relatively long, the flipping assembly 13 may also include three or more flipping units 131. The three or more flipping units 131 clamp the section to be shaped between the first clamping unit 11 and the second clamping unit 12 from three or more positions, thereby ensuring that the section to be shaped between the first clamping unit 11 and the second clamping unit 12 is stably clamped and flipped.

[0069] The flipping unit 131 may include a flipping drive and a clamping part, wherein the clamping part is used to clamp the section to be shaped corresponding to the solder strip, and the flipping drive is used to drive the clamping part to flip at a first angle, so that the section to be shaped is flipped into an inverted triangular section.

[0070] Because the solder strip has a certain thickness and the solar cell is thin and brittle, when the solar cell string formed by connecting the solar cell and the solder strip is laminated into a solar panel assembly, the middle part of the solder strip between two adjacent solar cells is prone to damaging the edge of the solar cell. Therefore, it is necessary to flatten the middle part of the solder strip (i.e., the connection between the inverted triangle segment 102 and the upright triangle segment 101) to reduce the adverse effect of the solder strip on the edge of the solar cell.

[0071] For this reason, please continue to refer to Figure 5 As shown, optionally, the solder strip processing device in this embodiment further includes a first flattening mechanism 4 and a second flattening mechanism 5, wherein: the first flattening mechanism 4 is disposed between the flipping assembly 13 and the first clamping unit 11, and the second flattening mechanism 5 is disposed between the flipping assembly 13 and the second clamping unit 12. The first flattening mechanism 4 is configured to flatten the connection between the formed inverted triangular segment 102 and the adjacent equilateral triangular segment 101 on the first side (e.g., the left side) after the segment to be shaped is flipped by a first angle, and the second flattening mechanism 5 is configured to flatten the connection between the formed inverted triangular segment 102 and the adjacent equilateral triangular segment 101 on the second side (e.g., the right side) after the segment to be shaped is flipped by a first angle.

[0072] By setting a first flattening mechanism 4 and a second flattening mechanism 5 between the flipping assembly 13 and the first clamping unit 11, and between the flipping assembly 13 and the second clamping unit 12, automatic flattening processing of the connection between the inverted triangular segment 102 and the upright triangular segment 101 on the welding strip is achieved, ultimately ensuring that the middle part of the cut welding strip has a flat segment 103. In addition, the flattening of both ends after the segment to be shaped is flipped can prevent a certain degree of springback at the twisted connection (node).

[0073] Obviously, the welding strip cutting mechanism 2 will also cut the welding strip from the flat section 103 of the welding strip. After the flat section 103 is flattened, the contact area with the battery cell increases, making it easier to connect and combine with the battery cell in series, and it is less likely to have a loose connection after being connected in series.

[0074] Furthermore, by placing the first flattening mechanism 4 between the flipping assembly 13 and the first clamping unit 11, and the second flattening mechanism 5 between the flipping assembly 13 and the second clamping unit 12, the length of the welding strip processing device of this application in the first horizontal direction can be shortened, saving space in the machine.

[0075] Of course, in another embodiment, in order to avoid interference between the flattening mechanism and the ribbon shaping mechanism 1, or because there is not enough machine space at the flipping assembly 13, the flattening mechanism can also be set after the ribbon shaping mechanism 1.

[0076] Specifically, such as Figure 5 As shown in the dashed box, the solder strip processing apparatus in this embodiment further includes a third flattening mechanism 6 and a fourth flattening mechanism 7 located after the solder strip shaping mechanism 1. The third flattening mechanism 6 is configured to flatten the connection between the inverted triangular segment 102 and the adjacent equilateral triangular segment 101 on the first side. The fourth flattening mechanism 7 is configured to flatten the connection between the inverted triangular segment 102 and the adjacent equilateral triangular segment 101 on the second side.

[0077] It can be seen that by setting the first flattening mechanism 4 and the second flattening mechanism 5 after the welding strip shaping mechanism 1, the automatic flattening treatment of the connection between the inverted triangular segment 102 and the upright triangular segment 101 on the welding strip can also be achieved, ultimately ensuring that at least the middle part of the cut welding strip group has a flat segment 103.

[0078] It should be noted that, for the sake of simplicity, this application shows the first flattening mechanism 4, the second flattening mechanism 5, the third flattening mechanism 6, and the fourth flattening mechanism 7 in [the diagram]. Figure 5In practice, depending on specific needs, only the first flattening mechanism 4 and the second flattening mechanism 5 may be set, or only the third flattening mechanism 6 and the fourth flattening mechanism 7 may be set. More specifically, the first flattening mechanism 4, the second flattening mechanism 5, the third flattening mechanism 6, and the fourth flattening mechanism 7 may be set simultaneously to achieve corresponding technical effects. For example, the first flattening mechanism 4 and the second flattening mechanism 5 perform pre-flattening treatment, lightly flattening the node position of the weld strip, while the third flattening mechanism 6 and the fourth flattening mechanism 7 perform formal flattening treatment, further reducing the node thickness of the weld strip.

[0079] The first flattening mechanism 4, the second flattening mechanism 5, the third flattening mechanism 6, and the fourth flattening mechanism 7 can all be existing flattening devices with various structures capable of flattening the welding strip. For example, the flattening device includes a mounting frame, an upper pressure block, a lower pressure block, and a driving component, wherein the upper pressure block and the lower pressure block are mounted on the mounting frame with their upper and lower sides relatively aligned. The welding strip passes between the upper and lower pressure blocks. The driving component drives the upper and lower pressure blocks to squeeze the welding strip from both sides, thereby flattening the welding strip; alternatively, the driving component drives the upper pressure block to move downwards, while the lower pressure block carries the welding strip and remains stationary, which also achieves the same flattening of the welding strip.

[0080] Optionally, the welding strip processing device in this embodiment further includes a second clamping assembly (not shown in the figure) located after the welding strip shaping mechanism 1. The second clamping assembly includes a third clamping unit and a fourth clamping unit. The third clamping unit is located before the third flattening mechanism 6, and the fourth clamping unit is located after the fourth flattening mechanism 7. The third clamping unit and the fourth clamping unit are configured to clamp the corresponding welding strips before the two ends of the flattened inverted triangular segment 102 of the third flattening mechanism 6 and the fourth flattening mechanism 7.

[0081] By clamping the welding strip from the front and rear sides of the third flattening mechanism 6 and the fourth flattening mechanism 7 using the third clamping unit and the fourth clamping unit, it is possible to prevent the inverted triangular segment 102 of the welding strip from deflecting due to uneven force during the flattening process of the third flattening mechanism 6 and the fourth flattening mechanism 7.

[0082] like Figure 5 As shown, optionally, the solder strip processing device in this embodiment further includes a plurality of anti-rollover mechanisms 8 spaced apart along a first horizontal direction in front of the solder strip forming mechanism 1. Each anti-rollover mechanism 8 has N anti-rollover channels forming a one-to-one correspondence between the N solder strips along a second horizontal direction (e.g., the Y direction). Each solder strip passes through its corresponding anti-rollover channel, which is configured to prevent the solder strip from rolling over.

[0083] By setting anti-rollover mechanisms 8 at intervals along the traction path of the welding strip, the anti-rollover limit of the welding strip is achieved, so that the welding strip enters the welding strip shaping mechanism 1 in an equilateral triangular state.

[0084] The following will focus on equilateral triangles. Figure 4 In (a), the equilateral triangle a1 with its vertex pointing upwards is shown, and the inverted triangle is... Figure 4 The implementation of the anti-flipping mechanism 8 is exemplarily described in the case of the inverted triangle b1 with its vertex facing down, as shown in (a).

[0085] like Figure 6 As shown, in some optional embodiments, the anti-rollover mechanism 8 includes N anti-rollover components arranged along a second horizontal direction and corresponding one-to-one with the N welding strips. Each anti-rollover component may include an upper roller 81, a lower roller 82, and a first elastic element 84 arranged vertically. The mounting shafts of both the upper roller 81 and the lower roller 82 extend along the second horizontal direction. A first groove 83 with a triangular cross-section is arranged circumferentially on the circumferential surface of the upper roller 81. The first groove 83 cooperates with the circumferential surface of the lower roller 82 to form an anti-rollover channel. There is a gap between the inner wall of the first groove 83 and the two inclined surfaces of the welding strips located within the anti-rollover channel.

[0086] The first elastic element 84 is configured to elastically press at least one of the upper roller 81 and the lower roller 82 against the other. For example, Figure 6 In the embodiment shown, the first elastic element 84 can elastically press the upper roller 81 against the lower roller 82 through some transmission structure.

[0087] The upper roller 81 and lower roller 82, each with a first groove 83, provide anti-overturning protection for the welding strip. These rollers rotate under the influence of the welding strip. Therefore, the anti-overturning assembly, while preventing the welding strip from overturning, avoids obstructing its normal transport and causing it to be stretched or deformed. Furthermore, each welding strip is protected by an independent anti-overturning assembly, facilitating installation and maintenance. For example, if one anti-overturning assembly malfunctions, only that assembly needs to be repaired or replaced.

[0088] Since there are gaps between the inner wall of the first groove 83 and the two inclined surfaces of the solder strip located in the anti-overturning channel, the inner wall of the first groove 83 can be prevented from scratching the two inclined surfaces of the solder strip and damaging the solder on the surface of the solder strip.

[0089] By incorporating the first elastic element 84, the upper roller 81 and the lower roller 82 are elastically pressed together. This creates a closed anti-overturning channel between the first groove 83 and the circumferential surface of the lower roller 82, improving anti-overturning stability. Furthermore, the elastic contact between the upper roller 81 and the lower roller 82 absorbs vertical vibrations of the welding strip, further reducing the risk of scratch damage to the surface of the welding strip.

[0090] The first elastic element 84 can be, for example, a spring capable of stretching and contracting in the vertical direction.

[0091] In another alternative embodiment, the anti-rollover mechanism 8 includes an upper roller, a lower roller, and a second elastic member arranged in pairs. The second elastic member is configured to elastically press at least one of the upper roller and the lower roller against the other. Both the upper roller and the lower roller extend along the second horizontal direction. N concentric grooves with triangular cross-sections are spaced along the second horizontal direction on the circumferential surface of the upper roller. Each second groove mates with the circumferential surface of the lower roller to form an anti-rollover channel. A gap exists between the inner wall of the second groove and the two inclined surfaces of the welding strip located within the anti-rollover channel.

[0092] Alternatively, both the upper and lower rollers extend along a second horizontal direction. There are N upper rollers, each corresponding to a welding strip. The circumferential surface of each upper roller has a third groove with a triangular cross-section. Each second groove mates with the circumferential surface of the lower roller to form an anti-overturning channel. There are gaps between the inner wall of the second groove and the two inclined surfaces of the welding strip located within the anti-overturning channel.

[0093] Similarly, the upper and lower rollers with second grooves provide anti-overturning protection for the welding strip, and can rotate under the influence of the welding strip. Therefore, the anti-overturning assembly achieves the anti-overturning effect while avoiding obstruction of the normal transport of the welding strip, thus preventing the welding strip from being stretched and deformed.

[0094] Because there are gaps between the inner wall of the second groove and the two inclined surfaces of the solder strip located in the anti-overturning channel, the inner wall of the second groove can avoid scratching the two inclined surfaces of the solder strip and damaging the solder on the surface of the solder strip.

[0095] By incorporating a second elastic element, the upper and lower rollers are elastically pressed together. This creates a closed anti-overturning channel between the second groove and the circumferential surface of the lower roller, improving anti-overturning stability. Furthermore, the elastic contact between the upper and lower rollers absorbs vertical vibrations of the welding strip, further reducing the risk of scratch damage to the welding strip surface.

[0096] The second elastic element can be, for example, a spring capable of stretching and contracting in the vertical direction.

[0097] For an equilateral triangle Figure 4 In (b), the equilateral triangle a1 with its vertex pointing downwards has an inverted triangle as... Figure 4 The inverted triangle b1 with its vertex pointing upwards, as shown in (b), can also employ the anti-rollover mechanism 8 with the above-described structure. The difference is that the first groove needs to be located on the lower roller, and the second groove needs to be located on the lower roller shaft.

[0098] like Figure 5As shown, optionally, the welding strip processing device in this embodiment of the application further includes a pressing mechanism 9 disposed between the welding strip shaping mechanism 1 and the welding strip cutting mechanism 2.

[0099] By setting a clamping mechanism 9 between the welding strip shaping mechanism 1 and the welding strip cutting mechanism 2, the clamping mechanism 9 can clamp the welding strip when the welding strip cutting mechanism 2 cuts the welding strip, thereby preventing the new free end of the welding strip from retracting after cutting, so that the welding strip traction mechanism 3 can smoothly clamp the free end of the welding strip from the welding strip cutting mechanism 2 when performing the next traction.

[0100] In addition, when the welding strip shaping mechanism 1 flips the welding strip, the clamping mechanism 9 can also clamp and fix the welding strip to prevent the welding strip between the welding strip shaping mechanism 1 and the welding strip cutting mechanism 2 from deflecting under the pull of the welding strip shaping mechanism 1.

[0101] This application also provides a solder strip processing method, which is implemented by the solder strip processing apparatus provided in any of the above embodiments, the solder strip processing method comprising: The welding strip traction mechanism 3 is used to pull N parallel welding strips that pass through the welding strip shaping mechanism 1 and the welding strip cutting mechanism 2 in sequence.

[0102] The welding strip shaping mechanism 1 is used to shape the N welding strips that enter the shaping station at intervals, so that alternating equilateral triangle segments 101 and inverted triangle segments 102 are formed on each welding strip, and every two adjacent equilateral triangle segments 101 and inverted triangle segments 102 constitute a welding strip segment 100.

[0103] When the welding strip traction mechanism 3 pulls N welding strips to a predetermined position, the welding strip cutting mechanism 2 cuts the N welding strips to obtain a welding strip segment group consisting of N welding strip segments.

[0104] The process of shaping the N welding strips that are intermittently entering the shaping station using the welding strip shaping mechanism 1 includes: using N flipping components 13 to fix the two ends of the corresponding welding strips to be shaped from both ends, and driving the sections to be shaped to flip at a first angle to form an inverted triangular section 102.

[0105] The welding strip processing method provided in this application involves N welding strips pulled out by the welding strip traction mechanism 3, the initial cross-sectional shape of which is an equilateral triangle. In other words, the N welding strips released by the welding strip feeding device are welding strips with an equilateral triangular cross-section. After the N welding strips are released, the welding strip processing device of this application shapes the target areas of the N welding strips through the welding strip shaping mechanism 1, thereby shaping the N welding strips into a structure with alternating equilateral triangular segments 101 and inverted triangular segments 102, meeting the required feeding demand for welding strip segments including equilateral triangular segments 101 and inverted triangular segments 102.

[0106] Further implementation details of the solder strip processing method provided in this application can be found in the aforementioned embodiments of solder strip processing, which will not be repeated here.

[0107] This application also provides a battery string production apparatus, which includes a conveying device, a fixing device, a battery cell supply device, and the welding strip processing device described in any one of the above embodiments, wherein: The welding strip traction mechanism and the battery cell supply device of the welding strip processing device are configured to lay the welding strip segments and battery cells in a neat string onto the conveying device; The conveying device is configured to transport the laid-out battery cells and welding strip segments to the bonding station; A fastening device is installed at the fastening station and is configured to fasten the welding strip group to the corresponding battery cell.

[0108] By coordinating a conveying device, a fixing device, a cell supply device, and a solder strip processing device, the battery string production equipment provided in this application achieves automatic welding of battery cells into strings. It also ensures the consistency of each solder strip segment in the solder strip group welded to adjacent battery cells.

[0109] This application provides a sufficiently detailed and specific description. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of this application should fall within the protection scope of this application. Furthermore, the above embodiments can be arbitrarily combined without conflict to achieve corresponding technical effects, and will not be exhaustively described herein. The scope of protection claimed in this application is defined by the claims, not by the above descriptions in the embodiments. Without contradiction, some optional components in one embodiment can also be configured in another embodiment, and some preferred structures of the same component in one embodiment can also be configured in another embodiment. In addition, the names of some components may have slight differences in wording in different embodiments; these slight differences do not affect the understanding of the technical solution of the present invention by those skilled in the art.

Claims

1. A welding strip processing device, characterized in that, The welding strip processing device includes a welding strip shaping mechanism, a welding strip cutting mechanism, and a welding strip traction mechanism arranged sequentially along a first horizontal direction, wherein: The welding strip traction mechanism is configured to clamp N parallel welding strips that pass sequentially through the welding strip shaping mechanism and the welding strip cutting mechanism, and to traction N welding strips along the first horizontal direction. The initial cross-sectional shape of the welding strips is an equilateral triangle. The welding strip shaping mechanism includes a first clamping assembly and a flipping assembly. The first clamping assembly includes a first clamping unit and a second clamping unit. The first clamping unit and the second clamping unit are configured to clamp the two ends of N welding strip segments to be shaped after a predetermined length of welding strip passes through the first clamping assembly each time. The flipping assembly is configured to flip the N clamped segments to be shaped by a first angle to flip the segments to be shaped into inverted triangular segments. The cross-sectional shape of the welding strip in the inverted triangular segments is an inverted triangle. The predetermined length of welding strip forms an equilateral triangular segment. The cross-sectional shape of the welding strip in the equilateral triangular segments is an equilateral triangle. The welding strip cutting mechanism is configured to cut N welding strips when the welding strip traction mechanism pulls N welding strips to a predetermined position, so as to obtain a welding strip segment group consisting of N cut welding strip segments, wherein each cut welding strip segment includes one equilateral triangle segment and one inverted triangle segment.

2. The welding strip processing apparatus as described in claim 1, characterized in that, The first angle is 60° or 180°.

3. The welding strip processing apparatus as described in claim 1, characterized in that, The first clamping unit is arranged at intervals of N along the second horizontal direction, and the N first clamping units are used to clamp the first ends of N segments to be shaped in a one-to-one correspondence; or, the first clamping unit is arranged as 1, and the 1 first clamping unit is used to clamp the first ends of n segments to be shaped at the same time. The second clamping unit is arranged at intervals of N along the second horizontal direction, and the N second clamping units correspond one-to-one with the N welding strips; or, the second clamping unit is arranged as 1, and the 1 second clamping unit is used to clamp the second ends of n segments to be shaped at the same time.

4. The welding strip processing apparatus as described in claim 1, characterized in that, N flipping components are spaced apart along the second horizontal direction, and each of the N flipping components corresponds to one of the N solder strips. Each flipping component is configured to clamp the corresponding segment to be shaped and to drive the segment to be shaped to flip at a first angle to form the inverted triangular segment. The second horizontal direction is perpendicular to the first horizontal direction.

5. The welding strip processing apparatus as described in claim 1, characterized in that, The flipping component includes a flipping unit. The flipping unit is provided in one unit, which is used to clamp N sections of solder strips to be shaped and flip them at the first angle; or... Two flipping units are arranged along the first horizontal direction. Each of the two flipping units is used to clamp both ends of the section of a solder strip to be shaped and flip it at the first angle; or... The flipping unit is provided in at least three along the first horizontal direction. The at least three flipping units along the first horizontal direction are used to clamp the section of a welding strip to be shaped and flip it at the first angle.

6. The welding strip processing apparatus as described in claim 1, characterized in that, The welding strip processing device further includes a first flattening mechanism and a second flattening mechanism, wherein: The first flattening mechanism is disposed between the flipping component and the first clamping unit, and the second flattening mechanism is disposed between the flipping component and the second clamping unit. The first flattening mechanism is configured to flatten the connection between the inverted triangular segment formed and the adjacent equilateral triangular segment on the first side after the segment to be shaped is flipped at the first angle. The second flattening mechanism is configured to flatten the connection between the inverted triangular segment formed and the adjacent equilateral triangular segment on the second side after the segment to be shaped is flipped at the first angle.

7. The welding strip processing apparatus as described in claim 1, characterized in that, The solder strip processing device further includes a third flattening mechanism and a fourth flattening mechanism located after the solder strip shaping mechanism, wherein: The third flattening mechanism is configured to flatten the connection between the inverted triangular segment and the adjacent equilateral triangular segment on the first side; The fourth flattening mechanism is configured to flatten the connection between the inverted triangular segment and the adjacent equilateral triangular segment on the second side.

8. The welding strip processing apparatus as described in claim 7, characterized in that, The welding strip processing device further includes a second clamping assembly located after the welding strip shaping mechanism. The second clamping assembly includes a third clamping unit and a fourth clamping unit. The third clamping unit is located before the third flattening mechanism, and the fourth clamping unit is located after the fourth flattening mechanism. The third clamping unit and the fourth clamping unit are configured to clamp the corresponding welding strip before the third flattening mechanism and the fourth flattening mechanism flatten both ends of the inverted triangular segment.

9. The welding strip processing apparatus as described in claim 1, characterized in that, The welding strip processing device further includes several anti-overturning mechanisms that are spaced apart along the first horizontal direction in front of the welding strip forming mechanism. The anti-overturning mechanism has N anti-overturning channels that correspond one-to-one with the N welding strips along the second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction. Each of the solder strips passes through a corresponding anti-rollover channel, which is configured to prevent the solder strip from rolling over.

10. The welding strip processing apparatus as described in claim 9, characterized in that, The anti-rollover mechanism includes N anti-rollover components arranged along the second horizontal direction and corresponding one-to-one with the N welding strips. Each anti-rollover component includes an upper roller, a lower roller, and a first elastic element arranged vertically. The mounting shafts of the upper roller and the lower roller both extend along the second horizontal direction. A first groove with a triangular cross-section is provided around the circumference of the upper roller. The first groove cooperates with the circumference of the lower roller to form the anti-rollover channel. There is a gap between the inner wall of the first groove and the two inclined surfaces of the welding strip located in the anti-rollover channel; The first elastic element is configured to elastically press at least one of the upper roller and the lower roller against the other.

11. The welding strip processing apparatus as described in claim 9, characterized in that, The anti-tumble mechanism includes an upper roller, a lower roller, and a second elastic member arranged in pairs, wherein the second elastic member is configured to elastically press at least one of the upper roller and the lower roller against the other, wherein: Both the upper roller and the lower roller extend along the second horizontal direction. The circumferential surface of the upper roller is provided with N rings of second grooves with triangular cross-sections along the second horizontal direction. Each second groove cooperates with the circumferential surface of the lower roller to form an anti-rollover channel. There is a gap between the inner wall of the second groove and the two inclined surfaces of the welding strip located within the anti-rollover channel; or, Both the upper roller and the lower roller extend along the second horizontal direction. There are N upper rollers, each upper roller corresponding to a welding strip. The circumferential surface of the upper roller is provided with a third groove with a triangular cross-section. Each second groove and the circumferential surface of the lower roller cooperate to form an anti-rollover channel. There is a gap between the inner wall of the second groove and the two inclined surfaces of the welding strip located in the anti-overturning channel.

12. The welding strip processing apparatus as described in claim 1, characterized in that, The welding strip processing device further includes a clamping mechanism disposed between the welding strip shaping mechanism and the welding strip cutting mechanism.

13. A battery string production device, characterized in that, The battery string production equipment includes a conveying device, a fixing device, a battery cell supply device, and a welding strip processing device as described in any one of claims 1 to 12, wherein: The welding strip traction mechanism of the welding strip processing device and the battery cell supply device are configured to lay the welding strip segments and battery cells in a neat string onto the conveying device; The conveying device is configured to transport the laid-out battery cells and welding strip segments to the fixing station; The fastening device is located at the fastening station and is configured to fasten the welding strip group to the corresponding battery cell.

14. A method for processing solder strips, characterized in that, The solder strip processing method is implemented by the solder strip processing apparatus according to any one of claims 1 to 12, and the solder strip processing method includes: N parallel welding strips are pulled sequentially through the welding strip shaping mechanism and the welding strip cutting mechanism using a welding strip traction mechanism. The welding strip shaping mechanism is used to shape the N welding strips that enter the shaping station at intervals, so that alternating equilateral and inverted triangular segments are formed on each welding strip, and every two adjacent equilateral and inverted triangular segments constitute a welding strip segment. When the welding strip traction mechanism pulls N welding strips to a predetermined position, the welding strip cutting mechanism cuts the N welding strips to obtain a welding strip segment group consisting of N welding strip segments. The process of using a solder strip shaping mechanism to shape the N solder strips that enter the shaping station at intervals includes: The two ends of the corresponding solder strip to be shaped are fixed from both ends by N flipping components in a one-to-one correspondence, and the segment to be shaped is rotated at the first angle to form the inverted triangular segment.

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