A film tape processing device, processing method and stringer

Abstract

The application provides a film strip processing device, a processing method and a string welding machine. The film strip processing device comprises a welding strip traction mechanism, a film strip feeding mechanism and a film pasting mechanism. The welding strip traction mechanism is configured to pull out a plurality of parallel welding strips so that the welding strips pass through a film strip processing station. The film strip feeding mechanism is configured to feed a to-be-pasted film strip to the film strip processing station along the traction direction of the welding strips. The film pasting mechanism cuts the to-be-pasted film strip at the film strip processing station into a plurality of film strip segments of a predetermined length, and pastes the plurality of film strip segments to the first side surface of the welding strip at the film strip processing station. Alternatively, the plurality of film strip segments are pasted to the first side surface and the second side surface opposite to the first side surface of the welding strip at the film strip processing station at intervals. Through cooperation of the traction mechanism, the film strip feeding mechanism and the film pasting mechanism, the film strip processing device of the application can simultaneously paste a plurality of film strip segments to the welding strip, thereby improving the film strip processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery production, specifically to a membrane strip processing device, processing method, and stringing machine. Background Technology

[0002] The traditional method of stringing solar cells involves applying adhesive to the cells during the stacking of cells and solder ribbons. Then, the stacked cells and ribbons are heated and pressed together, causing the solder ribbons to bond to the corresponding cells using molten adhesive, thus forming a battery string. The main drawback of this traditional method is that the adhesive application during stacking cannot achieve a strong bond between the cells and the solder ribbons, thus reducing the quality of the battery string. To overcome these problems, a new method has been developed that uses solder ribbons with an adhesive film attached for thermo-press welding of the cells. This involves the solder ribbons bonding to the corresponding cells through the molten adhesive film on them.

[0003] The existing film strip processing equipment is set up according to the traditional battery string laying method. When producing battery strings, a film strip is attached to each section of welding strip provided. Then, the welding strip with the film strip attached is pulled and laid to produce battery strings. The existing film strip attaching equipment can only process one film strip at a time. The film strip attaching time is long, and the efficiency of pulling welding strip and attaching film strips at one time is low, which seriously affects the production capacity. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention first provides a membrane strip processing device, the detailed technical solution of which is as follows:

[0005] A film strip processing device includes a welding strip traction mechanism, a film strip feeding mechanism, and a film application mechanism, wherein:

[0006] The welding strip traction mechanism is configured to pull out multiple parallel welding strips so that the welding strips pass through the film strip processing station;

[0007] The film tape feeding mechanism is configured to feed the film tape to be applied to the film tape processing station along the traction direction of the welding strip;

[0008] The film application mechanism cuts the film strip to be applied at the film strip processing station into several film strip segments of predetermined lengths, and applies several film strip segments to the first side surface of the solder strip at the film strip processing station; or, applies several film strip segments at intervals to the first side surface of the solder strip at the film strip processing station and the second side surface opposite to the first side surface.

[0009] By coordinating the traction mechanism, the film tape feeding mechanism, and the film application mechanism, the film tape processing device of the present invention can simultaneously apply several film tape segments to the welding strip, thereby improving the film tape processing efficiency.

[0010] In some embodiments, the film application mechanism includes an adsorption section and a slitting section, wherein: the adsorption section is used to adsorb the film strip to be applied; the slitting section is used to cut the film strip into several film strip segments; the adsorption section is also used to apply the several film strip segments to the solder ribbon.

[0011] Through the cooperation of the adsorption section and the slitting section, the film application mechanism realizes the automatic slitting of the film strip and simultaneously applies several slitting film strip segments to the welding strip.

[0012] In some embodiments, the adsorption section includes a plurality of adsorption components arranged along the traction direction of the welding strip; after the slitting section cuts the film strip to be attached into a plurality of film strip segments, each adsorption component adsorbs a film strip segment, and each adsorption component attaches the adsorbed film strip segment to the welding strip.

[0013] After the slitting section cuts the film strip to be attached into several film strip segments, each adsorption component adsorbs one film strip segment. By adjusting the position and angle of the adsorption component, the welding strip segment can be attached to the predetermined position of the welding strip.

[0014] In some embodiments, all odd-numbered adsorption components attach the adsorbed film strip to the first side surface of the solder ribbon, and all even-numbered adsorption components attach the adsorbed film strip to the second side surface of the solder ribbon; or, all even-numbered adsorption components attach the adsorbed film strip to the first side surface of the solder ribbon, and all odd-numbered adsorption components attach the adsorbed film strip to the second side surface of the solder ribbon.

[0015] The solder strip segments are attached to the two opposite surfaces of the solder strip at intervals. After the solder strip is cut, a solder strip assembly with film strip segments attached to the first side surface of the front half and the second side surface of the rear half can be obtained.

[0016] In some embodiments, each even-numbered adsorption component is configured to be movable and rotatable, and each even-numbered adsorption component is used to rotate the adsorbed membrane strip segment by 180° and then attach the membrane strip segment to the second side surface of the solder ribbon; or, each odd-numbered adsorption component is configured to be movable and rotatable, and each odd-numbered adsorption component is used to rotate the adsorbed membrane strip segment by 180° and then attach the membrane strip segment to the second side surface of the solder ribbon.

[0017] By controlling the movement and flipping of each even-numbered adsorption component or each odd-numbered adsorption group in the adsorption assembly, the solder strip segments are periodically attached to the two opposite surfaces of the solder strip.

[0018] In some embodiments, the film application mechanism further includes a spacing mechanism for performing spacing of a plurality of film strip segments.

[0019] By setting up a separation mechanism, the separation of several membrane strip segments is achieved, saving the amount of membrane strip used.

[0020] In some embodiments, both the film tape feeding mechanism and the film application mechanism are configured as two sets, with the two sets of film tape feeding mechanisms corresponding one-to-one with the two sets of film application mechanisms. The two sets of film application mechanisms are arranged opposite to each other, with one set of film application mechanisms used to apply film tape to the first side of the solder ribbon and the other set of film application mechanisms used to apply film tape to the second side of the solder ribbon. The two sets of film tape feeding mechanisms are configured to deliver a set of film tapes to be applied to the corresponding film tape processing station.

[0021] Two sets of film feeding mechanisms and film application mechanisms simultaneously apply film to both sides of the welding strip, further improving the film processing efficiency.

[0022] The present invention also provides a stringing machine, which includes the film strip processing device, the strip cutting mechanism, the strip stacking device, the cell stacking device, the conveying device, and the stringing device described in any one of the above claims, wherein:

[0023] The film strip processing device is used to supply the welding strip with film strip segments attached to it to the welding strip slitting mechanism, which is used to slitting the welding strip into welding strip assemblies.

[0024] The cell stacking device and the ribbon stacking device are configured to stack the cells and ribbon assemblies onto the conveyor according to a predetermined stacking rule;

[0025] The conveyor is used to transport the stacked ribbon assemblies to the tandem assembly;

[0026] The stringing device is used to press stacked battery cells and ribbon assemblies together to form a battery string.

[0027] By combining a film strip processing device, a welding strip cutting mechanism, a welding strip stacking device, a battery cell stacking device, a conveying device, and a stringing device, the stringing machine provided by this invention realizes the pressing and stringing of battery cells.

[0028] The present invention also provides a membrane strip processing method, comprising:

[0029] Multiple parallel welding strips are pulled out;

[0030] The film to be applied is fed to the first side of the welding strip along the traction direction of the welding strip;

[0031] The film strip to be applied is cut into several segments of predetermined length;

[0032] Several film strip segments are attached to the first side surface of the solder strip; or...

[0033] Several film strip segments are attached at intervals to the first side surface of the solder strip and the second side surface opposite to the first side surface.

[0034] The membrane strip processing method of the present invention simultaneously attaches several membrane strip segments to the solder strip, thereby improving the membrane strip processing efficiency.

[0035] In some embodiments, the film strip processing method further includes: after the film strip to be attached is cut into several film strip segments of predetermined length, performing a spacing process on several film strip segments.

[0036] By spacing several membrane strip segments, the amount of membrane strip used in areas where the cells do not need to be bonded together with membrane strips is reduced.

[0037] In some embodiments, attaching a plurality of film strip segments to a first side surface of a solder strip and a second side surface opposite to the first side surface includes: attaching all odd-numbered film strip segments of the plurality of film strip segments to the first side surface of the solder strip, and attaching all even-numbered film strip segments of the plurality of film strip segments to the second side surface of the solder strip; or, attaching all even-numbered film strip segments of the plurality of film strip segments to the first side surface of the solder strip, and attaching all odd-numbered film strip segments of the plurality of film strip segments to the second side surface of the solder strip.

[0038] The solder strip segments are attached to the two opposite surfaces of the solder strip at intervals. After the solder strip is cut, a solder strip assembly with film strip segments attached to the first side surface of the front half and the second side surface of the rear half can be obtained. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of a ribbon assembly used to string together solar cells with grid lines on both sides into a battery string.

[0040] Figure 2 This is a schematic diagram of the process of processing solder strips by the film strip processing device provided in the first embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the film belt feeding mechanism in an embodiment of the present invention.

[0042] Figure 4 This is a schematic diagram of the process of processing solder strips by the film strip processing device provided in the second embodiment of the present invention;

[0043] Figure 5 A schematic diagram of a solder ribbon assembly used to connect IBC solar cells into a battery string;

[0044] Figure 6 This is a schematic diagram of the execution flow of the membrane strip processing method provided in the fourth embodiment of the present invention;

[0045] Figure 7 This is a schematic diagram of the execution flow of the membrane strip processing method provided in the fifth embodiment of the present invention. Detailed Implementation

[0046] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] The existing film strip processing equipment is set up according to the traditional battery string laying method. When producing battery strings, a film strip is attached to each section of welding strip provided. Then, the welding strip with the film strip attached is pulled and laid to produce battery strings. The existing film strip attaching equipment can only process one film strip at a time. The film strip attaching time is long, and the efficiency of pulling welding strip and attaching film strips at one time is low, which seriously affects the production capacity.

[0048] To address the problems of existing film strip processing devices, this invention provides a film strip processing device that can simultaneously attach several film strip segments to the welding strip, thereby improving film strip processing efficiency.

[0049] The membrane strip processing apparatus of the present invention will be described exemplarily below through three embodiments.

[0050] First Embodiment

[0051] The film strip processing device provided in this embodiment is used to attach film strip segments to the first and second side surfaces of the solder strip at intervals, ultimately achieving the processing of such film strip segments. Figure 1 The automated production of the solder ribbon assembly 100, such as Figure 1 As shown, the ribbon assembly 100 includes a ribbon group 101 and two film ribbon segments 102 attached to a first side surface of the front half and a second side surface of the rear half of the ribbon group 101. Using the ribbon assembly 100 produced in this embodiment, solar cells with grid lines on both sides can be connected in series to form a battery string.

[0052] like Figure 2 As shown, the film strip processing device in this embodiment includes a welding strip traction mechanism (not shown), a film strip feeding mechanism 1, and a film application mechanism 2. Wherein:

[0053] The welding strip traction mechanism is configured to pull out multiple parallel welding strips 300, so that the welding strips 300 pass through the film strip processing station.

[0054] The film tape feeding mechanism 1 is configured to feed the film tape to be attached to the film tape along the traction direction of the welding tape 300 to the film tape processing station.

[0055] like Figure 3As shown, optionally, the film tape feeding mechanism 1 includes a film tape roll 11, a film tape pressing part 12, a film tape cutting part 13, and a film tape pulling part 14. The specific process of the film tape feeding mechanism 1 delivering the film tape to be attached to the film tape processing station is as follows: the film tape pulling part 14 pulls the film tape from the film tape roll 11, and the film tape passes through the film tape pressing part 12 and the film tape cutting part 13 in sequence. When the predetermined length of the film tape 400 to be attached is pulled to the film tape processing station, the film tape pressing part 12 presses the film tape, and the film tape cutting part 13 cuts off the film tape 400 to be attached. Optionally, the number of film tapes 400 to be attached corresponds one-to-one with the number of welding strips 300 pulled out by the welding strip pulling mechanism, that is, each film tape will be attached to a corresponding welding strip.

[0056] The film applicator 2 is used to cut the film strip 400 to be applied at the film strip processing station into several film strip segments 401 of predetermined lengths, and to apply the several film strip segments to the first side surface (such as the upper side surface) and the second side surface (such as the lower side surface) opposite to the first side surface of the welding strip 300 at the film strip processing station at intervals.

[0057] It should be noted that the first and second side surfaces of the solder strip described in this invention are only used to indicate the orientation of the film strip segment relative to the solder strip, and do not refer to the actual solder strip surface. In practical applications, the solder strip can be a circular solder strip, a triangular solder strip, or an irregularly shaped solder strip composed of alternating circular and triangular solder strip segments.

[0058] Optionally, the film-applying mechanism 2 in this embodiment includes an adsorption section and a cutting section, wherein: the adsorption section is used to adsorb the film strip 400 to be applied, and the cutting section is used to cut the film strip 400 adsorbed by the adsorption section into several film strip segments 401. The adsorption section is also used to attach the several film strip segments 401 obtained by cutting to the first side surface and the second side surface of the solder ribbon 300 at intervals.

[0059] Optionally, the adsorption section in this embodiment includes several (e.g., ...) arranged along the traction direction of the welding strip 300. Figure 2 The slitting section divides the film strip 400 to be attached into several film strip segments 401. Each adsorption component 21 adsorbs one film strip segment 401. Each adsorption component 21 attaches the adsorbed film strip segment 401 to the welding ribbon 300.

[0060] like Figure 2As shown, in this embodiment, all odd-numbered adsorption components 21 (as shown in the figures 1, 3, 5, and 7) attach the adsorbed membrane strip 401 to the first side surface of the solder ribbon 300, while all even-numbered adsorption components 21 (as shown in the figures 2, 4, 6, and 8) attach the adsorbed membrane strip 401 to the second side surface of the solder ribbon 300. Alternatively, all even-numbered adsorption components 21 can attach the adsorbed membrane strip 401 to the first side surface of the solder ribbon 300, while all odd-numbered adsorption components 21 attach the adsorbed membrane strip 401 to the second side surface of the solder ribbon 300.

[0061] In this embodiment, in the initial state, all adsorption components 21 are located on the first side (as above) of the solder ribbon in order to attach the membrane strip segment 401 to the second side surface (as below). Each even-numbered adsorption component 21 (as shown in the figure, the 2nd, 4th, 6th and 8th) is configured to be movable and flippable. Each even-numbered adsorption component 21 is used to flip the adsorbed membrane strip segment 401 180° and then attach the membrane strip segment to the second side surface of the solder ribbon.

[0062] like Figure 1 As shown, in order to save on the amount of film strip used and to make the middle part of the ribbon assembly 100 located between the two cells easier to bend or to meet other process requirements, a predetermined spacing is maintained between the two film strip segments 102 on the first side surface of the front half and the second side surface of the rear half of the ribbon assembly 101.

[0063] In order to achieve the separation between each membrane segment 401, the film application mechanism 2 may optionally include a separation mechanism, which is used to separate the adsorption component 21, thereby driving the membrane segments adsorbed on the adsorption component 21 to separate.

[0064] To enable those skilled in the art to more clearly understand the technical solution of the membrane strip processing device in this embodiment, the following will be combined with the appendix. Figure 2 The working process of the membrane strip processing device in this embodiment is described by way of example as follows:

[0065] First, such as Figure 2 As shown in (a), the welding strip traction mechanism pulls out multiple parallel welding strips 300, so that the welding strips 300 pass through the film strip processing station.

[0066] Next, as Figure 2 As shown in (b), the film tape feeding mechanism 1 delivers the film tape 400 to be attached to the film tape processing station along the traction direction of the welding tape 300.

[0067] Next, as Figure 2As shown in (c), each adsorption component 21 of the film application mechanism 2 adsorbs the film strip 400 to be applied. The cutting section of the film application mechanism 2 then cuts the film strip 400 to be applied from the gaps between the adsorption components 21. After cutting, each adsorption component 21 has a film strip segment 401 adsorbed on it.

[0068] Next, as Figure 2 As shown in (d) and (e), the spacing mechanism performs spacing on each adsorption component 21, such that a predetermined spacing is formed between every two consecutive membrane segments 401. Figure 2 In this process, a predetermined spacing is formed between the first and second membrane segments 401, between the third and fourth membrane segments 401, between the fifth and sixth membrane segments 401, and between the seventh and eighth membrane segments 401.

[0069] Next, as Figure 2 As shown in (f), all even-numbered adsorption components 21 move to the second side of the ribbon 300 and rotate 180°, or rotate 180° and then move to the second side of the ribbon. Next, all adsorption components 21 press the membrane strip segment 401 adsorbed thereon onto the ribbon 300.

[0070] Finally, as Figure 2 As shown in (g), the corresponding film strip segment 401 is heated by the heating plate assembly 3, so that each film strip segment 401 is finally attached to the welding strip 300.

[0071] At this point, the processing of the membrane strip is completed, resulting in a welding strip 300 with membrane strip segments attached to the first and second side surfaces at intervals.

[0072] The subsequent solder strip slitting mechanism slits the solder strip 300 after the film-coated strip section, thus obtaining several (e.g., 4) strips. Figure 1 The solder ribbon assembly 100 shown is slit in such a way that every two consecutive film ribbon segments 401 are cut onto a single solder ribbon segment, as shown below. Figure 2 In this process, the first and second film strip segments 401 are cut onto a welding strip to form a welding strip assembly; the third and fourth film strip segments 401 are cut onto a welding strip to form a welding strip assembly; and so on, to form a total of 4 welding strip assemblies.

[0073] Second Embodiment

[0074] Similar to the first embodiment, the membrane strip processing device in this embodiment is also used to realize the processing of membrane strips such as... Figure 1The automatic production of the welding strip assembly 100. Since the structure and operation of the film strip processing device in this embodiment are basically the same as those in the first embodiment, for the sake of brevity, this embodiment will focus on describing the technical differences between this embodiment and the first embodiment. Without causing confusion, the same or corresponding components will use the same reference numerals as in the first embodiment.

[0075] To further improve the efficiency of membrane strip processing, in this embodiment, as follows: Figure 3 As shown, both the film feeding mechanism 1 and the film application mechanism 2 are configured as two sets.

[0076] One set of film feeding mechanism 1 and film application mechanism 2 is located on the first side of the welding strip 300 and is used to apply film to the first side surface of the welding strip. The other set of film feeding mechanism 1 and film application mechanism 2 is located on the second side of the welding strip 300 and is used to apply film to the second side surface of the welding strip.

[0077] To enable those skilled in the art to more clearly understand the technical solution of the membrane strip processing device in this embodiment, the following description is in conjunction with the appendix. Figure 2 The operation of the membrane strip processing device in the embodiments is described by way of example as follows:

[0078] First, such as Figure 4 As shown in (a), the welding strip traction mechanism pulls out multiple parallel welding strips 300, so that the welding strips 300 pass through the film strip processing station.

[0079] Next, as Figure 4 As shown in (b), the two film strip feeding mechanisms 1 located on both sides of the welding strip 300 respectively send a section of film strip 400 to be attached along the traction direction of the welding strip 300 to the corresponding film strip processing station. After the traction of the two film strips is completed, the two sections of film strip 400 to be attached are staggered, and the staggered distance is approximately the length of one film strip segment to be cut.

[0080] Next, as Figure 4 As shown in (c), the two film-applying mechanisms 2 respectively adsorb the corresponding film strips 400 to be applied. The cutting sections of the two film-applying mechanisms 2 then cut the corresponding film strips 400 to be applied. After cutting, each adsorption component 21 adsorbs a film strip segment 401.

[0081] Next, as Figure 4 As shown in (d), the spacing mechanisms of the two film-applying mechanisms 2 respectively space their respective adsorption components 21. Ultimately, a predetermined spacing is formed between every two consecutive film strip segments 401. Figure 4In this process, a predetermined spacing is formed between the first and second membrane segments 401, between the third and fourth membrane segments 401, between the fifth and sixth membrane segments 401, and between the seventh and eighth membrane segments 401.

[0082] Finally, as Figure 4 As shown in (e), the corresponding film strip segment 401 is heated by the heating plate assembly 3, so that the film strip segment 401 is finally attached to the welding strip 300.

[0083] At this point, the processing of the membrane strip is completed, resulting in a welding strip 300 with membrane strip segments attached to the first and second side surfaces at intervals.

[0084] The subsequent solder strip slitting mechanism slits the solder strip 300 after the film-coated strip section, thus obtaining several (e.g., 4) strips. Figure 1 The solder ribbon assembly 100 shown is slit in such a way that every two consecutive film ribbon segments 401 are cut onto a single solder ribbon segment, as shown below. Figure 4 In this process, the first and second film strip segments 401 are cut onto a strip to form a strip assembly; the third and fourth film strip segments 401 are cut onto a strip to form a strip assembly; and so on, to form four strip assemblies.

[0085] Third Embodiment

[0086] The film strip processing device provided in this embodiment is only used to attach film strip segments to the first side surface of the solder strip, ultimately achieving the processing of such... Figure 5 The automated production of the solder ribbon assembly 200 includes a solder ribbon group 201, on which a film strip segment 202 is attached. Using the solder ribbon assembly 200 produced in this embodiment, battery cells (IBC cells) with grid lines on only one side (back side) can be strung together to form a battery string.

[0087] Compared with the second embodiment, the film strip processing device provided in this embodiment only includes a film strip feeding mechanism 1 and a film application mechanism 2 disposed on the first side of the welding strip 300. The film strip feeding mechanism 1 and the film application mechanism 2 cooperate to apply film to the first side surface of the welding strip, thereby obtaining a welding strip 300 with film strip segments attached to the first side surface at intervals.

[0088] The subsequent solder strip slitting mechanism slits the solder strip 300 after the film-coated strip section, thus obtaining several strips such as... Figure 5 The solder ribbon assembly 200 shown.

[0089] The film application process of the film feeding mechanism 1 and the film application mechanism 2 in this embodiment is basically the same as that in the second embodiment, and will not be described again in this specification.

[0090] This invention also provides a membrane strip processing method that can simultaneously attach multiple membrane strip segments to a solder strip, thereby improving membrane strip processing efficiency. The membrane strip processing method of this invention will be described exemplarily below through two embodiments.

[0091] Fourth embodiment

[0092] The solder strip processing method of this embodiment is used to attach film strip segments to the first and second side surfaces of the solder strip at intervals, ultimately achieving the processing of such... Figure 1 The automated production of the solder ribbon assembly 100 includes a solder ribbon group 101 and two film ribbon segments 102 attached to a first side surface of the front half and a second side surface of the rear half of the solder ribbon group 101. Using the solder ribbon assembly 100 produced in this embodiment, battery cells with grid lines on both sides can be connected in series to form a battery string.

[0093] The membrane strip processing method in this embodiment can be implemented by the membrane strip processing device in the first embodiment described above. For example... Figure 6 As shown, the solder strip processing method in this embodiment includes the following steps:

[0094] S101, pull out multiple parallel welding strips.

[0095] S102. The film to be attached is fed to the first side of the welding strip along the traction direction of the welding strip.

[0096] S103. Cut the film strip to be attached into several film strip segments of predetermined length.

[0097] S105. A number of film strip segments are attached at intervals to the first side surface of the solder strip and the second side surface opposite to the first side surface.

[0098] Optionally, step S105 specifically includes:

[0099] All odd-numbered film strip segments of a plurality of film strip segments are attached to the first side surface of the solder strip, and all even-numbered film strip segments of a plurality of film strip segments are attached to the second side surface of the solder strip. Alternatively,

[0100] All even-numbered film strip segments of a plurality of film strip segments are attached to the first side surface of the solder strip, and all odd-numbered film strip segments of a plurality of film strip segments are attached to the second side surface of the solder strip.

[0101] like Figure 1As shown, in order to save on the amount of film tape used, and to make the middle part of the solder ribbon assembly 100 located between two solar cells easier to bend, or to facilitate the processing of the solder ribbon in subsequent processes, a predetermined spacing is maintained between the two film tape segments 102 on the first side surface of the first half of the solder ribbon assembly 101 and the second side surface of the second half. Therefore, optionally, the film tape processing method of this embodiment further includes the following step between step S103 and step S105:

[0102] S104. Perform spacing treatment on several membrane segments.

[0103] For more specific processing details of the membrane strip processing method in this embodiment, please refer to the relevant content of the membrane strip processing device in the first embodiment above, which will not be repeated here.

[0104] Fifth embodiment

[0105] The film strip processing device provided in this embodiment is only used to attach film strip segments to the first side surface of the solder strip, ultimately achieving the processing of such... Figure 5 The automated production of the solder ribbon assembly 200 includes a solder ribbon group 201 and a film strip segment 202 attached to a first side surface of the solder ribbon group 201. Using the solder ribbon assembly 200 produced in this embodiment, battery cells (IBC cells) with grid lines on only one side (back side) can be strung together to form a battery string.

[0106] The solder strip processing method in this embodiment can be implemented by the film strip processing device in the third embodiment described above. For example... Figure 7 As shown, the solder strip processing method in this embodiment includes the following steps:

[0107] S201, pull out multiple parallel welding strips.

[0108] S202. The film to be attached is fed to the first side of the welding strip along the traction direction of the welding strip.

[0109] S203. Cut the film strip to be attached into several segments of predetermined length.

[0110] S205. Attach several film strip segments to the first side surface of the solder strip.

[0111] Similarly, the following steps are also included between step S203 and step S205:

[0112] S204. Perform spacing treatment on several membrane segments.

[0113] Finally, this invention also provides a stringing machine, which includes the film-tape processing device, ribbon slitting mechanism, ribbon stacking device, cell stacking device, conveying device, and stringing device described in any of the above embodiments. The film-tape processing device provides the ribbon with attached film-tape segments to the ribbon slitting mechanism, which slits the ribbon into ribbon assemblies. The cell stacking device and ribbon stacking device are configured to stack the cells and ribbon assemblies onto the conveying device according to a predetermined stacking rule. The conveying device transports the stacked ribbon assemblies to the stringing device. The stringing device presses the stacked cells and ribbon assemblies together to form a battery string. Through the cooperation of the film-tape processing device, ribbon slitting mechanism, ribbon stacking device, cell stacking device, conveying device, and stringing device, the stringing machine provided by this invention achieves the pressing and stringing of battery cells.

[0114] The present invention has been described above in sufficient detail and with certain specificities. 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 the invention should fall within the protection scope of the invention. The scope of protection claimed by the present invention is defined by the claims, and not by the above descriptions in the embodiments.

Claims

1. A membrane strip processing device, characterized in that, The film strip processing device includes a welding strip traction mechanism, a film strip feeding mechanism, and a film application mechanism, wherein: The welding strip traction mechanism is configured to pull out multiple parallel welding strips so that the welding strips pass through the film strip processing station. The film tape feeding mechanism is configured to feed the film tape to be attached to the film tape along the traction direction of the welding strip to the film tape processing station; The film-applying mechanism cuts the film strip to be applied at the film strip processing station into several film strip segments of predetermined lengths, and applies several of the film strip segments to the first side surface of the solder strip at the film strip processing station; or, applies several of the film strip segments to the first side surface of the solder strip and the second side surface opposite to the first side surface at the film strip processing station at intervals. The film-applying mechanism includes an adsorption section and a cutting section, wherein: The adsorption section is used to adsorb the film tape to be applied; The slitting section is used to cut the membrane strip into several membrane strip segments; The adsorption section is also used to attach several of the membrane strip segments to the welding strip; The adsorption section includes several adsorption components arranged along the traction direction of the welding strip. After the slitting section cuts the film strip to be attached into several film strip segments, each adsorption component adsorbs one film strip segment, and each adsorption component attaches the adsorbed film strip segment to the welding ribbon. In several of the adsorption components: All odd-numbered adsorption components attach the adsorbed membrane strip to the first side surface of the solder ribbon, and all even-numbered adsorption components attach the adsorbed membrane strip to the second side surface of the solder ribbon; or, All even-numbered adsorption components attach the adsorbed membrane strip to the first side surface of the solder ribbon, and all odd-numbered adsorption components attach the adsorbed membrane strip to the second side surface of the solder ribbon; Both the film feeding mechanism and the film application mechanism are configured in two sets, with each set of film feeding mechanisms corresponding one-to-one with the other set of film application mechanisms. The two sets of film-applying mechanisms are arranged opposite to each other. One set of film-applying mechanisms is used to apply film tape to the first side of the solder strip; the other set of film-applying mechanisms is used to apply film tape to the second side of the solder strip. The two sets of film tape feeding mechanisms are configured to deliver a set of film tapes to be attached to the corresponding film tape processing station.

2. The membrane strip processing device as described in claim 1, characterized in that: Each even-numbered adsorption component is configured to be movable and flippable, and each even-numbered adsorption component is used to flip the adsorbed membrane strip segment 180° and then attach the membrane strip segment to the second side surface of the solder ribbon; or, Each of the odd-numbered adsorption components is configured to be movable and flippable, and each of the odd-numbered adsorption components is used to flip the adsorbed membrane strip segment by 180° and then attach the membrane strip segment to the second side surface of the welding strip.

3. The membrane strip processing apparatus as described in claim 1, characterized in that, The film application mechanism further includes a spacing mechanism for spacing the plurality of film strip segments.

4. A string welding machine, characterized in that, The stringing machine includes, as described in any one of claims 1 to 3, a film strip processing device, a strip cutting mechanism, a strip stacking device, a cell stacking device, a conveying device, and a stringing device, wherein: The film strip processing device is used to provide the welding strip with film strip segments attached to it to the welding strip slitting mechanism, and the welding strip slitting mechanism is used to slitting the welding strip into welding strip assemblies; The cell stacking device and the ribbon stacking device are configured to stack the cells and ribbon assemblies onto the conveying device according to a predetermined stacking rule; The conveying device is used to transport the stacked welding strip assemblies to the serial connection device; The stringing device is used to press the stacked battery cells and solder ribbon assemblies together to form a battery string.

5. A method for processing membrane strips, characterized in that, The membrane strip processing method is implemented by the membrane strip processing apparatus according to any one of claims 1 to 3, comprising: Multiple parallel welding strips are pulled out; The film to be applied is fed to the first side of the welding strip along the traction direction of the welding strip; The film strip to be applied is cut into several film strip segments of predetermined length; Several of the aforementioned film strip segments are attached to the first side surface of the solder strip; or... Several of the film strip segments are attached at intervals to a first side surface of the solder strip and a second side surface opposite to the first side surface.

6. The membrane strip processing method as described in claim 5, characterized in that, The film strip processing method further includes: after the film strip to be attached is cut into several film strip segments of predetermined length, The membrane segments are then spaced.

7. The membrane strip processing method as described in claim 6, characterized in that, The step of attaching a plurality of the film strip segments to a first side surface of the solder strip and a second side surface opposite to the first side surface includes: All odd-numbered film strip segments of the plurality of film strip segments are attached to the first side surface of the solder strip, and all even-numbered film strip segments of the plurality of film strip segments are attached to the second side surface of the solder strip; or... All even-numbered film strip segments of the plurality of film strip segments are attached to the first side surface of the solder strip, and all odd-numbered film strip segments of the plurality of film strip segments are attached to the second side surface of the solder strip.

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