Adhesive film processing device and battery string stringing apparatus
By employing the synchronous preparation and laying technology of the adhesive film processing device, the problem of weak connection of the battery cell welding strips was solved, resulting in a simpler equipment structure and improved work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUXI AUTOWELL TECH
- Filing Date
- 2023-09-22
- Publication Date
- 2026-05-22
AI Technical Summary
The connection between the existing solar cell solder ribbon and the gridless solar cell is not firm, which makes the solder ribbon easy to detach. In addition, the existing encapsulant processing equipment has a complex structure and low working efficiency.
A film processing device and a battery string connection device are provided. Through the coordinated work of a film feeding mechanism, a feeding mechanism, a film pulling mechanism and a cutting mechanism, the front film and the back film are prepared and laid simultaneously, ensuring a firm connection between the solder strip and the battery cell.
It simplifies the equipment structure, reduces costs, and improves the reliability and efficiency of cell welding.
Smart Images
Figure CN117183309B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic module manufacturing, specifically a film processing device and a battery string connection device. Background Technology
[0002] Conventional solar cells have horizontally extending sub-grid lines and vertically extending main grid lines on both the front and back sides to collect current. The main grid lines are much wider than the sub-grid lines.
[0003] Because a large portion of the solar cell's surface area is occupied by the main grid lines, the light-receiving area of the cell is significantly reduced, ultimately limiting its photoelectric conversion efficiency. In response, the industry has proposed a novel gridless (OBB) solar cell. This type of cell has only sub-grid lines on its front and back sides. Compared to traditional solar cells, OBB cells offer significantly improved photoelectric conversion efficiency. Furthermore, the absence of a main grid reduces the amount of silver paste used, resulting in a substantial decrease in cell cost.
[0004] Since the solar cells lack a main busbar, to facilitate the extraction of current collected from all the sub-busbars on the cell, the solder ribbon must make contact and conduction with each sub-busbar line. Using traditional series connection methods, the solder ribbon cannot form a strong connection with the busbar-less solar cell after welding; the bonding force between the solder ribbon and the busbar-less solar cell is poor. The solder ribbon is prone to detaching from the busbar-less solar cell during subsequent cell string handling, ultimately affecting the production and manufacturing of the solar module.
[0005] Therefore, when connecting the solder ribbon to the solar cell, a front adhesive film and a back adhesive film are applied to the front and back sides of the solar cell respectively to fix the solder ribbon to the solar cell. In the prior art, the adhesive film processing equipment used to prepare the adhesive film generally prepares the front adhesive film and the back adhesive film separately, and then applies the back adhesive film and the front adhesive film sequentially to the surface of the solar cell string, resulting in a complex structure and low working efficiency of the adhesive film processing equipment. Summary of the Invention
[0006] To address the aforementioned technical problems of existing battery cell stringing machines, this application provides a film treatment device and a battery string connection device, the detailed technical solution of which is as follows:
[0007] The first aspect of this application provides an adhesive film processing apparatus, comprising: an adhesive film feeding mechanism and an adhesive film processing unit. The adhesive film processing unit includes a mounting bracket, a feeding mechanism, an adhesive film pulling mechanism, an adsorption tray, and a cutting mechanism, wherein:
[0008] The film feeding mechanism is configured to supply multiple first and second films to the film processing unit, wherein the first and second films sent to the film processing unit are arranged in a staggered parallel arrangement in a first horizontal direction.
[0009] The feeding mechanism is mounted on the mounting bracket and close to the first end of the adsorption tray. The feeding mechanism is used to hold the first and second adhesive films supplied by the adhesive film feeding mechanism, and to feed the first and second adhesive films toward the adsorption tray along the second horizontal direction, which is perpendicular to the first horizontal direction.
[0010] The adhesive film pulling mechanism is mounted on the mounting bracket. The adhesive film pulling mechanism is configured to clamp the first adhesive film and the second adhesive film from the feeding mechanism and pull the clamped first adhesive film and the second adhesive film toward the second end of the adsorption tray along the second horizontal direction, so that the first adhesive film and the second adhesive film move onto the adsorption tray. The adsorption tray is configured to hold the first adhesive film and the second adhesive film.
[0011] The cutting mechanism is installed on the mounting bracket and located between the feeding mechanism and the adsorption tray. The cutting mechanism is used to cut the first adhesive film and the second adhesive film to obtain a back adhesive film and a front adhesive film with a predetermined length on the adsorption tray.
[0012] The adhesive film processing apparatus provided in this application can simultaneously feed and cut the staggered first and second adhesive films to achieve simultaneous preparation of the front and back adhesive films, thereby simplifying the structure of this application and reducing equipment costs.
[0013] In some embodiments, the feeding mechanism includes a feeding drive and a film holding part, wherein: the feeding drive is disposed on a mounting bracket, and the film holding part is slidably connected to the mounting bracket and connected to the driving end of the feeding drive; the film holding part is used to hold the first film and the second film supplied by the film feeding mechanism; the feeding drive is used to drive the film holding part to translate along a second horizontal direction to feed the first film and the second film toward the adsorption tray.
[0014] A simple feeding mechanism is provided, which drives the film holding part to translate along the second horizontal direction through a feeding drive part, so as to drive the film holding part to hold the first film and the second film supplied by the film feeding mechanism, and to feed the first film and the second film toward the adsorption tray.
[0015] In some embodiments, the adhesive film pulling mechanism includes a transverse module, a support plate, a rotating module, a rotating shaft, and a clamp, wherein: the transverse module is connected to a mounting bracket; the support plate is horizontally connected to a movable part of the transverse module; the rotating module is disposed at the end of the support plate; the rotating shaft is rotatably disposed on the support plate along a first horizontal direction and is drively connected to the rotating module; the clamp is fixedly sleeved on the rotating shaft; the rotating module is used to drive the rotating shaft to rotate, so as to drive the clamp to clamp the first adhesive film and the second adhesive film that have entered between the clamp and the support plate onto the support plate; the transverse module is used to drive the support plate to translate along a second horizontal direction, so as to pull the first adhesive film and the second adhesive film toward the second end of the adsorption tray.
[0016] As can be seen, the rotating module drives the chuck to rotate via the rotating shaft, enabling the chuck to simultaneously clamp and release all the first and second films, thus simplifying the structure of the film pulling mechanism.
[0017] In some embodiments, the adsorption tray is vertically connected to the mounting bracket; the adsorption tray descends to avoid the movement path of the film pulling mechanism along the second horizontal direction to the feeding mechanism; after the film pulling mechanism pulls the first and second films to the outside of the second end of the adsorption tray, the adsorption tray rises to make the first and second films adhere to the upper surface of the adsorption tray.
[0018] By making the adsorption tray adjustable, on the one hand, the adsorption tray can avoid the film pulling mechanism, allowing the film pulling mechanism to move from the second end of the adsorption tray across the adsorption tray to the feeding mechanism to clamp the first and second films and pull the clamped first and second films to the second end of the adsorption tray. On the other hand, the adsorption tray can adsorb the first and second films upward.
[0019] In some embodiments, a plurality of first adsorption hole groups and a plurality of second adsorption hole groups are staggered along a first horizontal direction on the adsorption tray, wherein each first adsorption hole group is used to adsorb a first adhesive film and each second adsorption hole group is used to adsorb a second adhesive film.
[0020] By staggering multiple first adsorption hole groups and multiple second adsorption hole groups along the first horizontal direction on the adsorption plate, the adsorption of each first adhesive film and each second adhesive film is achieved, preventing the first adhesive film and the second adhesive film from sliding or shifting.
[0021] In some embodiments, the adhesive film processing unit further includes an auxiliary clamping mechanism, which is disposed on the mounting bracket and located on the side of the cutting mechanism away from the adsorption tray. The auxiliary clamping mechanism is used to clamp the first adhesive film and the second adhesive film when the cutting mechanism cuts the first adhesive film and the second adhesive film.
[0022] By setting an auxiliary clamping mechanism, the first and second adhesive films are clamped together. Thus, when the first and second adhesive films on the adsorption tray are cut off, the new ends of the first and second adhesive films are clamped and held on the auxiliary clamping mechanism. This allows the feeding mechanism to pick up and hold the ends of the first and second adhesive films from the auxiliary clamping mechanism and push the first and second adhesive films toward the adsorption tray again.
[0023] In some embodiments, the film feeding mechanism includes a first feeding roller, a first guide roller, a second feeding roller, and a second guide roller, wherein: the first feeding roller is used to carry a first film roll and drive the first film roll to rotate synchronously to feed out multiple parallel first films; the first guide roller has multiple first guide grooves for each first film to be individually bonded through, and the first guide roller is configured to guide the multiple parallel first films to the film processing unit; the second feeding roller is used to carry a second film roll and drive the second film roll to rotate to feed out multiple parallel second films; the second guide roller has multiple second guide grooves for each second film to be individually bonded through, and the second guide roller is configured to guide the multiple parallel second films to the film processing unit.
[0024] An implementation of a film feeding mechanism is provided, which can simultaneously supply multiple first films and multiple second films to a film processing unit, and ensure that the first films and second films are arranged in a staggered parallel arrangement in a first horizontal direction.
[0025] In some embodiments, the film feeding mechanism includes a guide assembly mounted on a mounting bracket. The guide assembly guides the first and second films supplied by the film feeding mechanism into the feeding mechanism. The guide assembly includes a plurality of third guide rollers and a guide comb. The third guide rollers have a plurality of third guide grooves through which each first and second film individually adheres. The first and second films supplied by the film feeding mechanism pass sequentially around the plurality of third guide rollers and enter the guide comb, and are guided into the feeding mechanism by the guide comb. The first and second films are arranged alternately and parallel within the guide comb.
[0026] A method for implementing a film feeding mechanism is provided, which can simultaneously guide multiple first films and multiple second films into the feeding mechanism, and ensure that the first films and second films are arranged in a staggered parallel arrangement in a first horizontal direction.
[0027] A second aspect of this application also provides a battery string connection device for connecting battery cells into a battery string and applying a film to the surface of the battery string. The battery string includes a solder ribbon assembly and battery cells. The battery string connection device includes a conveying device, a battery cell laying device, a solder ribbon supply device, the adhesive film processing device described in any one of the above, a first film application device, and a second film application device, wherein:
[0028] The conveying device is configured to convey the battery string along a second direction, and the conveying device has a first laying position and a second laying position along a second horizontal direction;
[0029] The first film application device is configured to pick up the i-th set of back adhesive film from the adhesive film processing device and lay the picked-up i-th set of back adhesive film to the second laying position;
[0030] The welding ribbon supply device is configured to supply welding ribbon sets to the first film application device, which is further configured to pull the i-th welding ribbon set from the welding ribbon supply device, and to lay the rear half of the pulled i-th welding ribbon set onto the i-th back adhesive film at the second laying position, and to lay the front half of the pulled i-th welding ribbon set at the first laying position.
[0031] The cell placement device is configured to place the i-th cell onto the latter half of the i-th ribbon group at the second placement position;
[0032] The conveying device is configured to step a predetermined distance in the second horizontal direction, such that the i-th battery cell and the i-th group of first adhesive films step from the second laying position to the first laying position, so as to free up the second laying position;
[0033] After the first film-applying device lays the first half of the (i+1)th weld strip group to the first laying position, the second film-applying device is configured to pick up the i-th group of front adhesive film from the adhesive film processing device and lay the picked-up i-th group of front adhesive film onto the i-th cell at the first laying position.
[0034] The battery string connection device provided in this application interweaves the laying of back adhesive film and front adhesive film during the laying and stacking of battery cells and welding ribbons. This allows the corresponding welding ribbons to be bonded to the battery cells after the adhesive film is laid. Since the adhesive strength of the adhesive film is greater than the connection force between the welding ribbon and the battery cell after welding, the welding ribbon and the battery cell can be prevented from detaching during the handling process after stringing.
[0035] In some embodiments, the first film-applying device includes a first translation drive module, a mounting base, a first lifting drive module, a second lifting drive module, a first adsorption component, and a welding ribbon traction component, wherein: the mounting base is connected to the drive end of the first translation drive module; the first lifting drive module and the second lifting drive module are arranged side by side on the mounting base along a second horizontal direction; the first adsorption component is connected to the drive end of the first lifting drive module, and the welding ribbon traction component is connected to the drive end of the second lifting drive module; the first translation drive module is configured to cooperate with the first lifting drive module to drive the first adsorption component to translate and lift along a first horizontal direction, so as to drive the first adsorption component to pick up the back adhesive film from the adhesive film processing device and lay the back adhesive film to a second laying position; the first translation drive module is also configured to cooperate with the second lifting drive module to drive the welding ribbon traction component to translate and lift along a first horizontal direction, so as to drive the welding ribbon traction component to receive the welding ribbon group supplied by the welding ribbon supply device and lay the welding ribbon group to the first laying position and the second laying position.
[0036] The first adsorption component and the welding ribbon traction component can independently lay the back adhesive film and the welding ribbon group under the drive of the first translation drive module and the corresponding lifting drive module, so that the adhesive film and the welding ribbon group are stacked in an orderly manner.
[0037] In some embodiments, the first adsorption component includes a second translational drive module and a first adsorption plate, wherein: the second translational drive module is connected to the drive end of the first lifting drive module, and the first adsorption plate is connected to the drive end of the second translational drive module; the first adsorption plate is used to adsorb the back adhesive film, and the second translational drive module is used to drive the first adsorption plate to translate along a second horizontal direction.
[0038] The first adsorption plate is driven to translate by the second translation drive module, so that the first adsorption plate can translate past the welding strip traction component to pick up and lay the back adhesive film.
[0039] In some embodiments, a plurality of first adsorption strips are spaced apart along a first horizontal direction on the first adsorption plate. Each first adsorption strip has a first adsorption hole. Each first adsorption strip is used to adsorb a back adhesive film. A first clearance groove is formed between two adjacent first adsorption strips to avoid the front adhesive film.
[0040] By configuring the first adsorption plate, it achieves adsorption of the back adhesive film while avoiding the front adhesive film, ensuring that the first adsorption plate only picks up the back adhesive films. The front adhesive films, which are placed alternately with the back adhesive films on the adhesive film processing device, remain on the adhesive film processing device and are not picked up.
[0041] In some embodiments, the second film-applying device includes a third translational drive module, a third lifting drive module, a fourth translational drive module, and a second adsorption plate, wherein: the third lifting drive module is connected to the drive end of the third translational drive module, the fourth translational drive module is connected to the drive end of the third lifting drive module, and the second adsorption plate is connected to the drive end of the fourth translational drive module; the third translational drive module is configured to cooperate with the third lifting drive module to drive the second adsorption plate to translate and lift along a second horizontal direction, so as to drive the second adsorption plate to pick up the front adhesive film from the adhesive film processing device and lay the front adhesive film to a first laying position; the fourth translational drive module is used to drive the second adsorption plate to translate along the first horizontal direction after the second adsorption plate picks up the front adhesive film, so as to adjust the position of the front adhesive film so that the front adhesive film is aligned with the solder ribbon group on the battery cell.
[0042] The second adsorption plate is driven to move and rise by the third translation drive module and the third lifting drive module, so that the second adsorption plate can pick up the front adhesive film from the adhesive film processing device and lay the front adhesive film in the first laying position. The second adsorption plate is driven to move along the first horizontal direction by the fourth translation drive module, so that the position of the front adhesive film can be adjusted so that the front adhesive film is aligned with the solder ribbon group on the battery cell.
[0043] In some embodiments, a plurality of second adsorption strips are spaced apart along a first horizontal direction on the second adsorption plate. Each second adsorption strip is provided with a second adsorption hole. Each second adsorption strip is used to adsorb a front adhesive film. A second clearance groove is formed between two adjacent second adsorption strips to avoid the back adhesive film.
[0044] By configuring the second adsorption plate, it achieves adsorption of the front adhesive film while avoiding the back adhesive film. This ensures that the second adsorption plate only picks up the front adhesive films. The back adhesive films, which are placed alternately with the front adhesive films on the adhesive film processing device, remain on the device and are not picked up. Attached Figure Description
[0045] Figure 1 This is a schematic diagram of the battery string connection device in the embodiments of this application;
[0046] Figure 2 This is a schematic diagram of the adhesive film processing unit and the second film application device in the embodiments of this application;
[0047] Figure 3 This is a schematic diagram of the structure of the second adsorption plate in an embodiment of this application;
[0048] Figure 4 This is a schematic diagram of the adhesive film pulling mechanism and the adsorption plate in the embodiments of this application;
[0049] Figure 5 This is a schematic diagram of the adhesive film pulling mechanism in the embodiments of this application;
[0050] Figure 6 This is a schematic diagram of the feeding mechanism, cutting mechanism and auxiliary clamping mechanism in the embodiments of this application;
[0051] Figure 7 This is a schematic diagram of the guiding component and feeding mechanism in the embodiments of this application;
[0052] Figure 8 This is a schematic diagram of the structure of the first film-applying device in an embodiment of this application;
[0053] Figure 9 This is a schematic diagram of the battery cell string laying process in an embodiment of this application;
[0054] Figures 1 to 9 Includes:
[0055] Adhesive film processing device 10:
[0056] Film feeding mechanism 1:
[0057] First feeding roller 11, second feeding roller 12, guide assembly 13, third guide roller 131
[0058] Guide comb 132, third guide groove 133;
[0059] Adhesive film processing unit 2:
[0060] Mounting bracket 21;
[0061] Feeding mechanism 22: feeding drive unit 221, adhesive film holding unit 222;
[0062] Film pulling mechanism 23: transverse module 231, support plate 232, rotating module 233, and rotating...
[0063] Shaft 234, collet 235;
[0064] Adsorption plate 24: First adsorption hole group 241, second adsorption hole group 242;
[0065] Cutting mechanism 25;
[0066] Auxiliary clamping mechanism 26;
[0067] Adsorption tray lifting mechanism 27;
[0068] Conveying device 20;
[0069] Solar cell placement device 30;
[0070] Welding strip supply device 40;
[0071] First film application device 50:
[0072] Mounting bracket 52;
[0073] First lifting drive module 53;
[0074] Second lifting drive module 54;
[0075] First adsorption component 55: Second translation drive module 551, first adsorption plate 552, first adsorption
[0076] Strip 553, First clearance groove 554;
[0077] 56. Welding strip traction assembly;
[0078] Second film application device 60:
[0079] Third lifting drive module 61;
[0080] Second adsorption plate 62: second adsorption strip 621, second clearance groove 622;
[0081] 100 for back adhesive film, 200 for welding ribbon assembly, 300 for battery cell, and 400 for front adhesive film. Detailed Implementation
[0082] To make the above-mentioned objectives, 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.
[0083] When connecting solder ribbons to solar cells, a front adhesive film and a back adhesive film are applied to the front and back sides of the solar cell respectively to fix the solder ribbon to the solar cell. In the prior art, the adhesive film processing equipment used to prepare the adhesive film generally prepares the front adhesive film and the back adhesive film separately, and then applies the back adhesive film and the front adhesive film sequentially to the surface of the solar cell string, resulting in a complex structure and low working efficiency of the adhesive film processing equipment.
[0084] Therefore, this application provides an adhesive film processing apparatus that can simultaneously prepare front and back adhesive films, thereby simplifying the structure of this application and ultimately reducing equipment costs.
[0085] like Figure 1 and Figure 2 As shown, the adhesive film processing apparatus 10 in this embodiment includes an adhesive film feeding mechanism 1 and an adhesive film processing unit 2.
[0086] The film feeding mechanism 1 is configured to supply multiple first and second films to the film processing unit 2. The first and second films fed to the film processing unit 2 are in a first horizontal direction (e.g., Figure 2 They are arranged in staggered parallel directions along the X-axis.
[0087] The film processing unit 2 includes a mounting bracket 21, a feeding mechanism 22, a film pulling mechanism 23, an adsorption tray 24, and a cutting mechanism 25, wherein:
[0088] The feeding mechanism 22 is mounted on the mounting bracket 21 and is located near the first end of the adsorption tray 24. The feeding mechanism 22 is used to hold the first and second adhesive films supplied by the adhesive film feeding mechanism 1, and to hold them along the second horizontal direction (e.g., Figure 2 The first and second adhesive films are fed toward the adsorption tray 24 in the Y-axis direction, and the second horizontal direction is perpendicular to the first horizontal direction.
[0089] The adhesive film pulling mechanism 23 is mounted on the mounting bracket 21. The adhesive film pulling mechanism 23 is configured to clamp the first adhesive film and the second adhesive film from the feeding mechanism 22, and pull the clamped first adhesive film and the second adhesive film toward the second end of the adsorption tray 24 along the second horizontal direction, so that the first adhesive film and the second adhesive film move onto the adsorption tray 24. The adsorption tray 24 is configured to hold the first adhesive film and the second adhesive film.
[0090] The cutting mechanism 25 is disposed on the mounting bracket 21 and located between the feeding mechanism 22 and the adsorption tray 24. The cutting mechanism 25 is used to cut the first adhesive film and the second adhesive film to obtain a set of back adhesive films and a set of front adhesive films with predetermined lengths on the adsorption tray 24.
[0091] In this embodiment, each set of back adhesive film includes multiple back adhesive films of predetermined length, and each set of front adhesive film includes multiple front adhesive films of predetermined length. Optionally, each back adhesive film and each front adhesive film correspondingly bonds one solder ribbon from the solder ribbon group to the battery cell.
[0092] As can be seen, the film processing apparatus provided in this application embodiment can simultaneously feed and cut the staggered first and second films to achieve simultaneous preparation of the front and back films, thereby making the structure of the film processing apparatus of this application simpler and ultimately reducing equipment costs.
[0093] like Figure 7 As shown, optionally, the feeding mechanism 22 includes a feeding drive part 221 and a film holding part 222, wherein: the feeding drive part 221 is disposed on the mounting bracket 21, and the film holding part 222 is slidably connected to the mounting bracket 21 and connected to the driving end of the feeding drive part 221.
[0094] The film holding part 222 is used to hold the first and second adhesive films supplied by the film feeding mechanism 1. The feeding drive part 221 is used to drive the film holding part 222 to translate along the second horizontal direction toward the adsorption tray 24, so as to bring the ends of the first and second adhesive films close to the adsorption tray 24. The film holding part 222 may be, for example, a pair of upper and lower clamping plates, which cooperate to clamp and release the first and second adhesive films.
[0095] like Figure 4 and Figure 5 As shown, optionally, the film pulling mechanism 23 includes a transverse module 231, a support plate 232, a rotating module 233, a rotating shaft 234, and a clamp 235, wherein: the transverse module 231 is connected to the mounting bracket 21. The support plate 232 is horizontally connected to the movable part of the transverse module 231, and the rotating module 233 is disposed at the end of the support plate 232. The rotating shaft 234 is along a first horizontal direction (e.g., ...). Figure 5The first and second adhesive films (in the X-axis direction) are rotatably mounted on the support plate 232 and are drive-connected to the rotating module 233. A clamp 235 is fixedly sleeved on the rotating shaft 234. The rotating module 233 drives the rotating shaft 234 to rotate, thereby causing the clamp 235 to clamp the first and second adhesive films, which enter between the clamp 235 and the support plate 232, onto the support plate 232. A transverse module 231 drives the support plate 232 to translate along a second horizontal direction, thereby pulling the first and second adhesive films toward the second end of the adsorption tray 24.
[0096] As can be seen, the rotating module 233 drives the chuck 235 to rotate via the rotating shaft 234, which in turn enables the chuck 235 to simultaneously clamp and release all the first and second adhesive films, thus simplifying the structure of the adhesive film pulling mechanism 23. The surfaces of the chuck 235 and the support plate 232 are coated with an anti-stick coating to prevent the adhesive film from sticking to the chuck 235 or the support plate 232.
[0097] Optionally, the adsorption tray 24 is vertically and flexibly connected to the mounting bracket 21. When the adsorption tray 24 is lowered to its low position, it can avoid the film pulling mechanism 23, allowing the film pulling mechanism 23 to move from the second end of the adsorption tray 24 past the adsorption tray 24 into the movement path of the feeding mechanism 22 to grasp the first and second films. After the film pulling mechanism 23 pulls the grasped first and second films to the outside of the second end of the adsorption tray 24, the adsorption tray 24 is raised to its high position, so that the first and second films adhere to the upper surface of the adsorption tray 24.
[0098] like Figure 4 As shown, optionally, in order to implement lifting control of the adsorption tray 24, the film processing unit 2 also includes an adsorption tray lifting mechanism 27 disposed on the mounting bracket 21 for driving the adsorption tray 24 to lift.
[0099] Optionally, the adsorption tray 24 is provided with a plurality of first adsorption hole groups 241 and a plurality of second adsorption hole groups 242 arranged alternately along the first horizontal direction. Each first adsorption hole group 241 is used to adsorb one first adhesive film, and each second adsorption hole group 242 is used to adsorb one second adhesive film. Both the first adsorption hole group 241 and the second adsorption hole group 242 include a plurality of adsorption holes arranged along the second horizontal direction.
[0100] By staggering multiple first adsorption hole groups 241 and multiple second adsorption hole groups 242 along the first horizontal direction on the adsorption plate 24, staggered adsorption of each first adhesive film and each second adhesive film is achieved, preventing the first adhesive film and the second adhesive film from sliding or shifting.
[0101] Optionally, after the feeding mechanism 22 feeds the first and second adhesive films into position toward the adsorption tray 24, the feeding mechanism 22 remains stationary. When the adhesive film pulling mechanism 23 picks up the first and second adhesive films from the feeding mechanism 22, the feeding mechanism 22 releases the first and second adhesive films, allowing the adhesive film pulling mechanism 23 to pull the picked-up first and second adhesive films toward the second end of the adsorption tray 24 along the second horizontal direction. When the cutting mechanism 25 cuts the first and second adhesive films, the feeding mechanism 22 simultaneously holds the first and second adhesive films in place. Thus, after the cutting mechanism 25 cuts the first and second adhesive films, the new ends of the first and second adhesive films are held on the feeding mechanism 22, which can then push the ends of the first and second adhesive films toward the adsorption tray 24 again.
[0102] like Figure 6 As shown, an auxiliary clamping mechanism 26 can also be additionally provided to cooperate with the cutting mechanism 25 in performing the cutting operation. The auxiliary clamping mechanism 26 is provided on the mounting bracket 21 and located on the side of the cutting mechanism 25 away from the adsorption tray 24. After the film pulling mechanism 23 clamps the first film and the second film from the feeding mechanism 22, the feeding mechanism 22 immediately releases the first film and the second film, so that the film pulling mechanism 23 can pull the clamped first film and the second film toward the second end of the adsorption tray 24 along the second horizontal direction.
[0103] When the cutting mechanism 25 cuts the first and second adhesive films, the auxiliary clamping mechanism 26 clamps the first and second adhesive films. Thus, after the cutting mechanism 25 cuts the first and second adhesive films, the newly cut ends are clamped and held on the auxiliary clamping mechanism 26. The feeding mechanism 22 can pick up and hold the ends of the first and second adhesive films from the auxiliary clamping mechanism 26, and then push the first and second adhesive films towards the adsorption tray 24 again.
[0104] like Figure 1 As shown, optionally, the film feeding mechanism 1 includes a first feeding roller 11, a first guide roller, a second feeding roller 12, and a second guide roller. The first feeding roller 11 carries a first film roll and drives the first film roll to rotate synchronously, thus feeding out multiple parallel first films. The first guide roller has multiple first guide grooves for each first film to pass through individually. The first guide roller is configured to guide the multiple parallel first films to the film processing unit 2. The second feeding roller 12 carries a second film roll and drives the second film roll to rotate, thus feeding out multiple parallel second films. The second guide roller has multiple second guide grooves for each second film to pass through individually. The second guide roller is configured to guide the multiple parallel second films to the film processing unit 2.
[0105] To ensure that multiple first adhesive films and multiple second adhesive films are staggered in the first horizontal direction, the first guide groove on the first guide roller and the second guide groove on the second guide roller are configured to be staggered in the first horizontal direction.
[0106] Of course, the film feeding mechanism 1 may also include only one feeding roller. When the film roll on the feeding roller rotates, it releases multiple parallel films. Among them, all the odd-numbered films are supplied to the film processing unit 2 as first films, and all the even-numbered films are supplied to the film processing unit 2 as second films. In this case, correspondingly, only one set of guide rollers may be provided, and the guide rollers are provided with multiple guide grooves for each first film and second film to be individually bonded and passed through.
[0107] like Figure 7 As shown, optionally, the film feeding mechanism 1 further includes a guide assembly 13 mounted on the mounting bracket 21. The guide assembly 13 guides the first and second films supplied by the film feeding mechanism 1 into the feeding mechanism 22. The guide assembly 13 includes several third guide rollers 131 and a guide comb 132. The third guide rollers 131 have multiple third guide grooves 133 for each first and second film to pass through individually. The first and second films supplied by the film feeding mechanism 1 pass sequentially around the several third guide rollers 131 and into the guide comb 132, and are guided by the guide comb 132 into the feeding mechanism 22. The first and second films are arranged alternately and parallel within the guide comb 132.
[0108] This application also provides a battery string connection device for connecting battery cells into a battery string and attaching a film to the surface of the battery string. The battery string includes a solder ribbon and battery cells.
[0109] Continue to refer to Figure 1 and Figure 9 As shown, the battery string connection device in this embodiment includes a conveying device 20, a battery cell laying device 30, a welding ribbon supply device 40, an adhesive film processing device 10 provided in any of the above embodiments, a first film application device 50, and a second film application device 60, wherein:
[0110] The conveying device 20 is configured to convey the battery string along a second direction (e.g., Figure 1 The conveying device 20 is provided with a first laying position A and a second laying position B along the second horizontal direction (as shown in the Y-axis direction).
[0111] The first film application device 50 is configured to pick up the i-th set of back adhesive film from the adhesive film processing unit 2 and lay the picked-up i-th set of back adhesive film to the second laying position B.
[0112] The solder ribbon supply device 40 is configured to supply solder ribbon sets to the first film application device 50, which is also configured to pull the i-th solder ribbon set from the solder ribbon supply device 40, lay the rear half of the pulled i-th solder ribbon set onto the i-th back adhesive film at the second laying position B, and lay the front half of the pulled i-th solder ribbon set onto the first laying position A.
[0113] The cell placement device 30 is configured to place the i-th cell onto the latter half of the i-th ribbon group at the second placement position B.
[0114] The conveying device 20 is configured to step a predetermined distance backward along the second horizontal direction, such that the i-th battery cell and the i-th set of back adhesive film step from the second laying position B to the first laying position A, so as to free up the second laying position B.
[0115] After the first film application device 50 lays the first half of the (i+1)th weld strip group to the first laying position A, the second film application device 60 is configured to pick up the i-th group of front adhesive film from the adhesive film processing unit 2 and lay the picked-up i-th group of front adhesive film onto the i-th cell at the first laying position.
[0116] To enable those skilled in the art to better understand the technical solution of this application, the following will combine... Figure 9 The specific process of laying the battery cells, solder ribbons, back adhesive film, and front adhesive film onto the conveying device 20 in conjunction with the first film-applying device 50 and the second film-applying device 60 in this embodiment of the application is described exemplarily.
[0117] like Figure 9 As shown in (a), in the initial state, both the first laying position A and the second laying position B of the conveying device 20 are in an empty state.
[0118] like Figure 9 As shown in (b), the first film application device 50 obtains the first back adhesive film 100 from the adhesive film processing unit 2 and lays the obtained first back adhesive film 100 to the second laying position B.
[0119] like Figure 9 As shown in (c), the first film-applying device 50 receives the first solder ribbon group 200 supplied by the solder ribbon supply device 40 and lays the first solder ribbon group 200 at the first laying position A and the second laying position B, wherein: the rear half of the first solder ribbon group 200 is placed on the first back adhesive film 100 and the front half of the first solder ribbon group 200 is placed on the conveying device 20.
[0120] like Figure 9As shown in (d), the cell placement device 30 places the first cell 300 at the second placement position B, and the first back adhesive film 100 bonds the rear half of the first ribbon group 200 to the back of the first cell 300.
[0121] like Figure 9 As shown in (e), the conveying device 20 advances a predetermined distance backward, causing the first battery cell 300 and the first back adhesive film 100 to move from the second laying position B to the first laying position A, thus freeing up the second laying position B. Immediately afterwards, the first film-applying device 50 obtains the second back adhesive film 100 from the adhesive film processing unit 2 and lays the obtained second back adhesive film 100 at the second laying position B.
[0122] like Figure 9 As shown in (f), the first film application device 50 receives the second solder ribbon group 200 supplied by the solder ribbon supply device 40 and lays the second solder ribbon group 200 at the first laying position A and the second laying position B, wherein: the rear half of the second solder ribbon group 200 is placed on the second back adhesive film 100, and the front half of the second solder ribbon group 200 is placed on the first battery cell 300 located at the first laying position A.
[0123] like Figure 9 As shown in (g), the cell placement device places the second cell 300 at the second placement position B, and the second back adhesive film 100 bonds the rear half of the second solder ribbon group 200 to the back of the second cell 300. The second film application device 60 obtains the first front adhesive film 400 from the adhesive film processing unit 2 and places the obtained first front adhesive film 400 at the first placement position A, whereby the first front adhesive film 400 bonds the front half of the second solder ribbon group 200 to the front of the first cell 300. To improve placement efficiency, the second cell and the first front adhesive film 400 can be placed simultaneously.
[0124] like Figure 9 As shown in (h), the conveying device 20 advances a predetermined distance backward, causing the second battery cell 300 and the second back adhesive film 100 to move from the second laying position B to the first laying position A, thus freeing up the second laying position B. Immediately afterwards, the first film-applying device 50 obtains the third back adhesive film 100 from the adhesive film processing unit 2 and lays the obtained third back adhesive film 100 at the second laying position B.
[0125] like Figure 9As shown in (i), the first film application device 50 obtains the third solder ribbon group 200 supplied by the solder ribbon supply device and lays the third solder ribbon group 200 at the first laying position A and the second laying position B, wherein: the rear half of the third solder ribbon group 200 is placed on the third back adhesive film 100, and the front half of the third solder ribbon group 200 is placed on the second battery cell 300 located at the first laying position A.
[0126] like Figure 9 As shown in (j), the cell placement device places the third cell 300 at the second placement position B, and the third back adhesive film 100 bonds the rear half of the third solder ribbon group 200 to the back of the third cell 300. The second film application device 60 obtains the second front adhesive film 400 from the adhesive film processing unit 2 and places the obtained second front adhesive film 400 at the first placement position A, whereby the second front adhesive film 400 bonds the front half of the third solder ribbon group 200 to the front of the second cell 300. Similarly, to improve placement efficiency, the third cell 300 and the second front adhesive film 400 can be placed simultaneously.
[0127] like Figure 9 As shown in (k), the conveying device 20 is configured to step backward a predetermined distance, such that the third battery cell 300 and the third back adhesive film 100 step from the second laying position B to the first laying position A, thereby freeing up the second laying position B. Immediately afterwards, the first film-applying device 50 obtains the fourth back adhesive film 100 from the adhesive film processing unit 2 and lays the obtained fourth back adhesive film 100 at the second laying position B.
[0128] like Figure 9 As shown in (l), the first film-applying device 50 obtains the fourth solder ribbon group 200 supplied by the solder ribbon supply device and lays the fourth solder ribbon group 200 at the first laying position A and the second laying position B, wherein: the rear half of the fourth solder ribbon group 200 is placed on the fourth back adhesive film 100, and the front half of the fourth solder ribbon group 200 is placed on the third battery cell 300 located at the first laying position B.
[0129] This process is repeated until all the battery cells, solder ribbons, back film, and front film are laid out.
[0130] The battery string connection device provided in this application embodiment interweaves the laying of back adhesive film and front adhesive film during the laying and stacking of battery cells and solder ribbons. This allows the corresponding solder ribbons to be bonded to the battery cells after the adhesive film is laid. Since the adhesive strength of the adhesive film is greater than the connection force after the solder ribbons are welded to the battery cells, the detachment of the solder ribbons from the battery cells can be avoided during the handling process after stringing.
[0131] like Figure 8As shown, optionally, the first film-applying device 50 includes a first translation drive module (not shown), a mounting base 52, a first lifting drive module 53, a second lifting drive module 54, a first adsorption component 55, and a welding ribbon traction component 56, wherein: the mounting base 52 is connected to the drive end of the first translation drive module. The first lifting drive module 53 and the second lifting drive module 54 are along a second horizontal direction (e.g., Figure 8 The Y-axis direction of the model is arranged side by side on the mounting base 52.
[0132] The first adsorption component 55 is connected to the drive end of the first lifting drive module 53, and the ribbon traction component 56 is connected to the drive end of the second lifting drive module 54. The first translation drive module is configured to cooperate with the first lifting drive module 53 to drive the first adsorption component 55 to translate and lift along the first horizontal direction, so as to drive the first adsorption component 55 to pick up the back adhesive film from the adhesive film processing unit 2 and lay the back adhesive film to the second laying position B. The first translation drive module is also configured to cooperate with the second lifting drive module 54 to drive the ribbon traction component 56 to translate and lift along the first horizontal direction, so as to drive the ribbon traction component to receive the ribbon group supplied by the ribbon supply device 40 and lay the ribbon group to the first laying position A and the second laying position B.
[0133] As can be seen, the first adsorption component 55 and the welding ribbon traction component 56 can independently lay the back adhesive film and the welding ribbon group under the drive of the first translation drive module and the corresponding lifting drive module, so that the adhesive film and the welding ribbon group are stacked in an orderly manner.
[0134] Optionally, the first adsorption component 55 includes a second translation drive module 551 and a first adsorption plate 552, wherein: the second translation drive module 551 is connected to the drive end of the first lifting drive module 53, and the first adsorption plate 552 is connected to the drive end of the second translation drive module 551. The first adsorption plate 552 is used to adsorb the back adhesive film, and the second translation drive module 551 is used to drive the first adsorption plate 552 to translate along a second horizontal direction.
[0135] The first adsorption plate 552 is used to adsorb the back adhesive film, and the second translation drive module 551 is used to drive the first adsorption plate 552 to translate along the second horizontal direction, so that the first adsorption plate 552 can pass over the welding strip traction assembly 56 to carry out the adsorption and laying of the back adhesive film.
[0136] Optionally, a plurality of first adsorption strips 553 are spaced apart along the first horizontal direction on the first adsorption plate 552. Each first adsorption strip is provided with a first adsorption hole. Each first adsorption strip 553 is used to adsorb a back adhesive film. A first clearance groove 554 is formed between two adjacent first adsorption strips 553 to avoid the front adhesive film.
[0137] In this way, it can be ensured that the first adsorption plate 552 can adsorb the back adhesive film and avoid the front adhesive film. That is, the first adsorption plate 552 only performs adsorption on each back adhesive film, while the front adhesive film, which is placed alternately with the back adhesive film, remains on the adhesive film processing unit 2.
[0138] In this embodiment of the application, by pre-adjusting the installation position of the first adsorption plate 552, it can be ensured that after the back adhesive film is laid to the second laying position B, each strip of the back adhesive film is aligned with the welding strip in the welding strip group pulled by the welding strip traction assembly 56. In this way, when the welding strip traction assembly 56 completes the laying of the welding strip group, each strip of the back adhesive film can correspondingly bond a welding strip to the battery cell.
[0139] like Figure 2 As shown, optionally, the second film application device 60 includes a third translation drive module (not shown in the figure), a third lifting drive module 61, a fourth translation drive module (not shown in the figure), and a second adsorption plate 62, wherein: the third lifting drive module 61 is connected to the drive end of the third translation drive module, the fourth translation drive module is connected to the drive end of the third lifting drive module 61, and the second adsorption plate 62 is connected to the drive end of the fourth translation drive module.
[0140] The third translation drive module is configured to cooperate with the third lifting drive module 61 to drive the second adsorption plate 62 along the second horizontal direction (e.g., ...). Figure 2 The second adsorption plate 62 is moved and lifted in the Y-axis direction to pick up the front adhesive film from the adhesive film processing unit 2 and lay the front adhesive film to the first laying position A.
[0141] The fourth translation drive module is used to drive the second adsorption plate 62 along the first horizontal direction (e.g., after the second adsorption plate 62 picks up the front adhesive film) after it has been picked up by the second adsorption plate 62. Figure 2 The front adhesive film is translated along the X-axis to adjust its position, so that each front adhesive film is aligned with each solder ribbon in the solder ribbon group on the battery cell, thereby ensuring that each front adhesive film corresponds to one solder ribbon bonded to the battery cell.
[0142] like Figure 3 As shown, optionally, the second adsorption plate 62 along the first horizontal direction (e.g.) Figure 3 Multiple second adsorption strips 621 are spaced apart along the X-axis direction. Each second adsorption strip 621 has a second adsorption hole. Each second adsorption strip is used to adsorb one front adhesive film. A second clearance groove 622 is formed between two adjacent second adsorption strips 621 to avoid the back adhesive film.
[0143] By configuring the second adsorption plate 62, the second adsorption plate 62 can adsorb the front adhesive film and avoid the back adhesive film. That is, the second adsorption plate 62 only absorbs the front adhesive film, while the back adhesive film, which is placed alternately with the front adhesive film, remains on the adhesive film processing unit 2.
[0144] The foregoing has provided a sufficiently detailed and specific description of this application. 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. The scope of protection claimed in this application is defined by the claims, and not by the above descriptions in the embodiments.
Claims
1. A film processing apparatus, characterized in that, The adhesive film processing device includes an adhesive film feeding mechanism and an adhesive film processing unit. The adhesive film processing unit includes a mounting bracket, a feeding mechanism, an adhesive film pulling mechanism, an adsorption tray, and a cutting mechanism, wherein: The film feeding mechanism is configured to supply multiple first and second films to the film processing unit, wherein the first and second films fed to the film processing unit are arranged in a staggered parallel arrangement in a first horizontal direction. The feeding mechanism is disposed on the mounting bracket and close to the first end of the adsorption tray. The feeding mechanism is used to hold the first and second adhesive films supplied by the adhesive film feeding mechanism, and to feed the first and second adhesive films toward the adsorption tray along a second horizontal direction, which is perpendicular to the first horizontal direction. The adhesive film pulling mechanism is disposed on the mounting bracket. The adhesive film pulling mechanism is configured to clamp the first adhesive film and the second adhesive film from the feeding mechanism, and pull the clamped first adhesive film and the second adhesive film toward the second end of the adsorption tray along the second horizontal direction, so that the first adhesive film and the second adhesive film move to the adsorption tray. The adsorption tray is configured to adsorb the first adhesive film and the second adhesive film. The cutting mechanism is disposed on the mounting bracket and located between the feeding mechanism and the adsorption tray. The cutting mechanism is used to cut the first adhesive film and the second adhesive film to obtain a back adhesive film and a front adhesive film with a predetermined length on the adsorption tray. The adhesive film processing device further includes a first film application device and a second film application device. The first film application device includes a first adsorption component, which includes a first adsorption plate. The first adsorption plate is used to adsorb the back adhesive film. A plurality of first adsorption strips are arranged at intervals along the first horizontal direction on the first adsorption plate. The first adsorption strips are provided with first adsorption holes. Each first adsorption strip is used to adsorb one back adhesive film. A first avoidance groove is formed between two adjacent first adsorption strips to avoid the front adhesive film. The second film application device includes a second adsorption plate for adsorbing the front adhesive film. The second adsorption plate is provided with a plurality of second adsorption strips at intervals along the first horizontal direction. The second adsorption strips are provided with second adsorption holes. Each second adsorption strip is used to adsorb one front adhesive film. A second clearance groove is formed between two adjacent second adsorption strips to avoid the back adhesive film.
2. The film processing apparatus as described in claim 1, characterized in that, The feeding mechanism includes a feeding drive unit and a film holding unit, wherein: The feeding drive unit is disposed on the mounting bracket, and the adhesive film holding unit is slidably connected to the mounting bracket and connected to the drive end of the feeding drive unit; The adhesive film holding part is used to hold the first adhesive film and the second adhesive film supplied by the adhesive film feeding mechanism; The feeding drive unit is used to drive the adhesive film holding unit to translate along the second horizontal direction, so as to feed the first adhesive film and the second adhesive film toward the adsorption tray.
3. The film processing apparatus as described in claim 1, characterized in that, The adhesive film pulling mechanism includes a transverse module, a support plate, a rotating module, a rotating shaft, and a clamp, wherein: The transverse module is connected to the mounting bracket; The support plate is horizontally connected to the movable part of the transverse module, and the rotating module is disposed at the end of the support plate; The rotating shaft is rotatably mounted on the support plate along the first horizontal direction and is connected to the rotating module via a transmission. The clamp is fixedly sleeved on the rotating shaft; The rotating module is used to drive the rotating shaft to rotate, so as to cause the chuck to clamp the first adhesive film and the second adhesive film that have entered between the chuck and the support plate onto the support plate; The lateral movement module is used to drive the support plate to translate along the second horizontal direction, so as to pull the first adhesive film and the second adhesive film toward the second end of the adsorption tray.
4. The film processing apparatus as described in claim 1, characterized in that, The adsorption tray is vertically and flexibly connected to the mounting bracket; The adsorption plate descends to avoid the movement path of the film pulling mechanism along the second horizontal direction to the feeding mechanism; After the adhesive film pulling mechanism pulls the first and second adhesive films to the second end of the adsorption tray, the adsorption tray rises so that the first and second adhesive films adhere to the upper surface of the adsorption tray.
5. The film processing apparatus as described in claim 1, characterized in that, The adsorption tray is provided with a plurality of first adsorption hole groups and a plurality of second adsorption hole groups arranged alternately along the first horizontal direction, wherein each first adsorption hole group is used to adsorb one first adhesive film and each second adsorption hole group is used to adsorb one second adhesive film.
6. The film processing apparatus as described in claim 1, characterized in that, The adhesive film processing unit further includes an auxiliary clamping mechanism, which is disposed on the mounting bracket and located on the side of the cutting mechanism away from the adsorption tray. The auxiliary clamping mechanism is used to clamp the first adhesive film and the second adhesive film when the cutting mechanism cuts the first adhesive film and the second adhesive film.
7. The film processing apparatus as described in claim 1, characterized in that, The film feeding mechanism includes a first feeding roller, a first guide roller, a second feeding roller, and a second guide roller, wherein: The first feeding roller is used to carry the first film roll and drive the first film roll to rotate synchronously so as to feed out multiple parallel first films; The first guide roller has multiple first guide grooves for each first adhesive film to be individually bonded through, and the first guide roller is configured to guide multiple parallel first adhesive films to the adhesive film processing unit. The second feeding roller is used to carry the second film roll and drive the second film roll to rotate so as to feed out multiple parallel second films; The second guide roller has multiple second guide grooves through which each second adhesive film is individually bonded and passed. The second guide roller is configured to guide multiple parallel second adhesive films to the adhesive film processing unit.
8. The film processing apparatus as described in claim 1, characterized in that, The adhesive film feeding mechanism includes a guide assembly disposed on the mounting bracket, the guide assembly being used to guide the first adhesive film and the second adhesive film supplied by the adhesive film feeding mechanism into the feeding mechanism; The guiding assembly includes several third guide rollers and a guide comb. The third guide rollers have multiple third guide grooves for each first adhesive film and second adhesive film to be individually bonded and passed through. The first adhesive film and second adhesive film supplied by the adhesive film feeding mechanism pass around several third guide rollers in sequence and enter the guide comb, and enter the feeding mechanism under the guidance of the guide comb. The first adhesive film and the second adhesive film are arranged alternately and in parallel within the guide comb.
9. A battery string connection device, characterized in that, The battery string connection device is used to connect battery cells into battery strings and apply a film to the surface of the battery strings. The battery string includes a ribbon assembly and battery cells. The battery string connection device includes a conveying device, a battery cell laying device, a ribbon supply device, and a film processing device as described in any one of claims 1-8, wherein: The conveying device is configured to convey the battery string along a second direction, and the conveying device has a first laying position and a second laying position along a second horizontal direction; The first film application device is configured to pick up the i-th set of back adhesive film from the adhesive film processing unit and lay the picked-up i-th set of back adhesive film to the second laying position; The welding ribbon supply device is configured to supply welding ribbon sets to the first film application device, and the first film application device is further configured to pull the i-th welding ribbon set from the welding ribbon supply device, and to lay the rear half of the pulled i-th welding ribbon set onto the i-th back adhesive film at the second laying position, and to lay the front half of the pulled i-th welding ribbon set onto the first laying position. The cell placement device is configured to place the i-th cell onto the latter half of the i-th ribbon group at the second placement position; The conveying device is configured to step a predetermined distance backward along the second horizontal direction, such that the i-th battery cell and the i-th set of back adhesive film step from the second laying position to the first laying position, thereby freeing up the second laying position; After the first film-applying device lays the first half of the (i+1)th weld strip group to the first laying position, the second film-applying device is configured to pick up the i-th group of front adhesive film from the adhesive film processing unit and lay the picked-up i-th group of front adhesive film onto the i-th cell at the first laying position.
10. The battery string connection device as described in claim 9, characterized in that, The first film-applying device further includes a first translation drive module, a mounting base, a first lifting drive module, a second lifting drive module, and a welding strip traction assembly, wherein: The mounting base is connected to the drive end of the first translation drive module; The first lifting drive module and the second lifting drive module are arranged side by side on the mounting base along the second horizontal direction; The first adsorption component is connected to the drive end of the first lifting drive module, and the welding strip traction component is connected to the drive end of the second lifting drive module; The first translation drive module is configured to cooperate with the first lifting drive module to drive the first adsorption component to translate and lift along the first horizontal direction, so as to drive the first adsorption component to pick up the back adhesive film from the adhesive film processing unit and lay the back adhesive film to the second laying position; The first translation drive module is also configured to cooperate with the second lifting drive module to drive the welding strip traction assembly to translate and lift along the first horizontal direction, so as to drive the welding strip traction assembly to receive the welding strip group supplied by the welding strip supply device and lay the welding strip group to the first laying position and the second laying position.
11. The battery string connection device as described in claim 10, characterized in that, The first adsorption component further includes a second translation drive module, wherein: The second translation drive module is connected to the drive end of the first lifting drive module, and the first adsorption plate is connected to the drive end of the second translation drive module. The second translation drive module is used to drive the first adsorption plate to translate along the second horizontal direction.
12. The battery string connection device as described in claim 9, characterized in that, The second film application device further includes a third translation drive module, a third lifting drive module, and a fourth translation drive module, wherein: The third lifting drive module is connected to the drive end of the third translation drive module, the fourth translation drive module is connected to the drive end of the third lifting drive module, and the second adsorption plate is connected to the drive end of the fourth translation drive module. The third translation drive module is configured to cooperate with the third lifting drive module to drive the second adsorption plate to translate and lift along the second horizontal direction, so as to drive the second adsorption plate to pick up the front adhesive film from the adhesive film processing unit and lay the front adhesive film to the first laying position. The fourth translation drive module is used to drive the second adsorption plate to translate along the first horizontal direction after the second adsorption plate picks up the front adhesive film, so as to adjust the position of the front adhesive film and align the front adhesive film with the solder ribbon group on the battery cell.