Online film insertion apparatus and string welding film insertion apparatus

Abstract

The application discloses an online film inserting device and a string welding film inserting device. The online film inserting device comprises a film tape roll, a film cutting device and a film strip conveying device. The film tape roll is used for carrying a film tape roll. The film cutting device cuts the film tape drawn out from the film tape roll to obtain n film strips. The film strip conveying device clamps the n film strips from the film cutting device, separates the n film strips by a predetermined interval and synchronously moves the n film strips to corresponding film inserting stations in a battery string for film insertion. The predetermined interval is the interval between two adjacent film inserting stations in the battery string. The film cutting device is arranged to cut the film tape. The film strip conveying device is arranged to pick up and convey the film strips obtained after cutting, so that the subsequent film insertion operation is facilitated, manual participation is reduced, and the efficiency of film strip generation and positioning is improved.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic module manufacturing technology, and relates to an online film insertion device and a string welding film insertion device. Background Technology

[0002] As solar cells become thinner, cracks can easily form at adjacent edges when adjacent cells are interconnected using solder strips. To address this issue, current module manufacturers have proposed inserting film strips between adjacent cells.

[0003] In the original production model, the cells are first welded together using a string welding machine, and then a membrane strip is manually inserted between adjacent cells. This method is inefficient, and because the insertion of the membrane strip requires creating a height difference between adjacent cells, the cells are prone to breakage due to manual operation. Therefore, there is an urgent need for a solution that can automatically insert the membrane strip. Summary of the Invention

[0004] To address the problems in related technologies, this application provides an online membrane insertion device and a serial welding membrane insertion device, the technical solutions of which are as follows: In a first aspect, this application provides an online film insertion device, which includes a film strip roll, a film cutting device, and a film strip transport device, wherein: The membrane tape roll is used to carry the membrane tape roll; The film cutting device cuts the film strip drawn from the film roll to obtain n film strips; The film strip transport device clamps the n film strips from the film cutting device, separates the n film strips at a predetermined interval, and moves them synchronously to the corresponding film insertion station in the battery string for film insertion. The predetermined interval is the distance between two adjacent film insertion stations in the battery string.

[0005] Optionally, the film cutting device is further configured to stretch the n film strips obtained after cutting, and the film strip transport device clamps the stretched n film strips from the film cutting device; or, After the membrane strip transport device clamps the n membrane strips from the membrane cutting device, it stretches the n membrane strips before inserting the membrane.

[0006] Optionally, the film cutting device pulls the film strip from the film roll and cuts the pulled film strip; or, The film strip transport device pulls the film strip from the film strip roll and passes it through the film cutting device, which cuts the film strip that has passed through the film cutting device.

[0007] Optionally, the film cutting device includes a film supply device and a film cutting assembly, the film cutting assembly including a first film tape clamping part, a second film tape clamping part, and a cutting part, wherein: The film strip is pulled out from the film supply device and then passes through the clamping and cutting channel of the film cutting assembly; The first and second film strip clamping parts clamp the two sides of the film strip passing through the clamping and cutting channel, respectively, and the cutting part cuts the clamped film strip to obtain a film strip.

[0008] Optionally, the film cutting device further includes a film belt traction device, which pulls the film belt from the film supply device and through the clamping and cutting channel of the film cutting device.

[0009] Optionally, the first membrane strip clamping portion and the second membrane strip clamping portion are further configured to be spaced apart from each other in the horizontal direction to achieve stretching of the clamped membrane strip segment.

[0010] Optionally, the first film tape clamping part and the second film tape clamping part have the same structure. The first film tape clamping part includes a mounting plate and a film cutting chuck, a chuck lifting mechanism, and a stretching drive mechanism mounted on the mounting plate, wherein: The film cutting chuck is connected to the chuck lifting mechanism and the stretching drive mechanism respectively. The chuck lifting mechanism drives the film cutting chuck to descend so as to press the film strip passing through the film cutting channel. The stretching drive mechanism drives the film cutting chuck to move in a direction away from the center line of the film cutting channel and in a horizontal and vertical outward direction so as to stretch the film strip being held. The mounting plate is located outside the film cutting clamp and is fixed relative to the position of the film cutting channel.

[0011] Optionally, the first film belt clamping part further includes a film cutting clamp head mounting plate, a film cutting clamp head lower mounting plate, and a lifting column, wherein: The upper mounting plate of the film cutting chuck is mounted on the lower mounting plate of the film cutting chuck via the lifting column; The upper end of the film cutting chuck is fixed to the upper mounting plate of the film cutting chuck, and the lower pressing surface of the film cutting chuck passes through the lower mounting plate of the film cutting chuck. The drive end of the chuck lifting mechanism is fixedly connected to the upper mounting plate of the film cutting chuck to drive the upper mounting plate of the film cutting chuck to rise and fall relative to the lower mounting plate of the film cutting chuck. The driving end of the stretching drive mechanism is fixedly connected to the lower mounting plate of the film cutting chuck, so that the film cutting chuck is driven by the lower mounting plate of the film cutting chuck to move in a horizontal and vertical outward direction away from the center line of the film cutting channel.

[0012] Optionally, the cutting section includes at least one hot-cutting wire, a first connecting plate, a second connecting plate, a first lifting drive section, and a second lifting drive section, wherein: The two ends of the hot-cut wire are respectively mounted on the first connecting plate and the second connecting plate; The driving end of the first lifting drive unit is connected to the first connecting plate, and the driving end of the second lifting drive unit is connected to the second connecting plate. The first lifting drive unit and the second lifting drive unit cooperate to drive the first connecting plate and the second connecting plate to lift, so as to drive the hot-cut shreds to lift. The extension direction of the hot-cutting filament is perpendicular to the traction direction of the membrane strip.

[0013] Optionally, the film supply device includes a film belt passing bracket, a first film belt support plate, a second film belt support plate, a first support plate driving mechanism, and a second support plate driving mechanism, wherein: The outlet of the film strip passing bracket is located at the inlet of the clamping and cutting channel, and the pulled film strip enters the clamping and cutting channel from the film strip passing bracket; The first film strip support plate and the second film strip support plate are respectively located on both sides of the clamping and cutting channel, and respectively cooperate with the first film strip clamping part and the second film strip clamping part to clamp the film strip; The first support plate driving mechanism and the second support plate driving mechanism respectively drive the first membrane strip support plate and the second membrane strip support plate to move away from each other, so as to stretch the clamped membrane strip.

[0014] Optionally, the film supply device further includes a film belt support plate, a pressing plate, and a pressing cylinder, wherein: The film belt support plate is located between the outlet of the film belt passing bracket and the inlet of the clamping and cutting channel to support the film belt pulled out from the film belt passing bracket; The pressing plate is located above the membrane belt support plate. The driving end of the pressing cylinder is fixedly connected to the pressing plate. The pressing cylinder drives the pressing plate to move toward the membrane belt support plate to press the membrane belt at the membrane belt support plate.

[0015] Optionally, the first and second film strip support plates are provided with clearance grooves on their upper surfaces that are opposite to the cutting wires.

[0016] Optionally, the membrane belt traction device includes a membrane belt traction clamp, a clamp drive mechanism, and a traction moving mechanism, wherein: The traction moving mechanism is connected to the traction chuck in a transmission connection, and the driving end of the chuck driving mechanism is connected to the traction chuck. The traction moving mechanism drives the traction clamp to the film supply device at least once, and the clamp driving mechanism drives the traction clamp to hold the film strip at the film supply device.

[0017] Optionally, the membrane strip transport device includes two sets of membrane strip transport sections arranged opposite to each other, each set clamping both ends of n membrane strips. For each set of membrane strip transport sections, the membrane strip transport section includes n sets of clamps, a lower clamp mounting track, and a drive mechanism, wherein: Each set of clamps includes an upper clamp and a lower clamp that are positioned opposite each other for clamping the film strip. The lower clamp of each set of clamps is mounted on the lower clamp mounting track. The drive mechanism is connected to the n clamps and drives the n sets of clamps to move along the lower clamp mounting track.

[0018] Optionally, the second to nth lower chucks are movably mounted on the lower chuck mounting rail, and the chucks are interconnected by flexible components. The first set of clamps is fixedly installed, and the nth set of clamps is connected to the drive mechanism via a connector. The drive mechanism drives the nth set of clamps to move along the lower clamp mounting track. The flexible component drives the clamps to move closer and further apart from each other to adjust the spacing of the n membrane strips being clamped.

[0019] Optionally, the membrane strip transport unit further includes an upper clamp mounting track, with each upper clamp mounted on the upper clamp mounting track. The middle portions of each set of upper and lower clamps are connected by a pin. The membrane strip transport unit also includes first clamping parts mounted at both ends of the upper clamp mounting track. The two first clamping parts operate synchronously, jointly driving the upper clamp mounting track to rise or fall. When the upper clamp mounting track rises, it drives the tail ends of each upper clamp to rise. The clamping part of each upper clamp rotates around the corresponding rotation axis to press against the clamping part of the corresponding lower clamp.

[0020] Optionally, the first clamping part includes a connecting plate, a sliding device, and a lifting cylinder, wherein: The connecting plate is mounted on the sliding device; The end of the upper clamp mounting rail passes through the connecting plate and is connected to the drive end of the lifting cylinder; The lifting cylinder drives the upper chuck mounting track to rise along the sliding device, thereby causing the mounting parts of each upper chuck on the upper chuck mounting track to rise, and then causing the clamping part of the upper chuck to move around the rotation axis toward the clamping part of the corresponding lower chuck, so as to achieve clamping of the chuck. The lifting cylinder drives the upper chuck mounting track to descend along the sliding device, thereby causing the mounting portions of each upper chuck on the upper chuck mounting track to descend, and in turn causing the clamping portion of the upper chuck to move away from the clamping portion of the corresponding lower chuck around the rotation axis, thus opening the chuck.

[0021] Optionally, the tail ends of the upper and lower clamps of each set of clamps are connected by springs, and the middle part of the upper and lower clamps of each set of clamps is mounted on a rotating shaft. The film strip transport unit also includes a second clamping function, which includes a pressure rod and a pressure rod drive mechanism, wherein: The drive end of the pressure rod drive mechanism is connected to the pressure rod, and the pressure rod is disposed above the clamping part of each upper chuck; The pressure rod driving mechanism drives the pressure rod downward, and the pressure rod presses the clamping part of each upper chuck against the clamping part of the corresponding lower chuck, thereby opening the chuck; The pressure rod driving mechanism drives the pressure rod upward, and the pressure rod moves away from the clamping part of each upper chuck. Under the action of the corresponding spring, the clamping part of each upper chuck separates from the clamping part of the corresponding lower chuck, thereby realizing the clamping of the chuck.

[0022] Optionally, the drive mechanism includes a drive motor, a driving wheel, a driven wheel, and a conveyor belt, wherein: The driving wheel and the driven wheel are respectively installed at both ends of the mounting clamp where the lower chuck mounting track is located; The conveyor belt is fitted onto the driving wheel and the driven wheel; The nth set of clamps is fixed to the conveyor belt by the connector, and the drive end of the drive motor is connected to the drive wheel. The drive motor rotates in the forward direction, and through the drive wheel and the conveyor belt, it drives the nth set of chucks to move along the lower chuck mounting track toward the direction of the first set of chucks; The drive motor rotates in the opposite direction, and through the drive wheel and the conveyor belt, it drives the nth set of chucks to move away from the 1st set of chucks along the lower chuck mounting track.

[0023] Optionally, the lower clamp mounting track includes four guide rails arranged in a matrix. One of two adjacent lower clamps is sleeved onto the first set of diagonally opposite guide rails through a sleeve, and the other of two adjacent lower clamps is sleeved onto the second set of diagonally opposite guide rails through a sleeve.

[0024] Optionally, the membrane strip transport device further includes a mounting plate, with two sets of membrane strip transport parts fixed on the mounting plate, and the lower end of the mounting plate slidably mounted on the slide rail of the machine tool via a slider.

[0025] Optionally, the film strip transport device further includes two lifting mechanisms, which are respectively installed at the lower ends of the two sets of film strip transport sections, and drive the two sets of film strip transport sections to rise and fall respectively.

[0026] Optionally, the membrane strip handling device further includes a membrane strip stretching motor, a telescopic block, a first connecting rod, and a second connecting rod, wherein: The telescopic block is located between the two sets of membrane strip transport sections, and the first connecting rod and the second connecting rod are respectively connected between the telescopic block and the two sets of membrane strip transport sections; The drive end of the membrane stretching motor is connected to the telescopic block. The membrane stretching motor drives the telescopic block to move along the extension direction of the membrane transport section. The first connecting rod and the second connecting rod drive the two sets of membrane transport sections to move closer to each other and further away from each other under the action of the telescopic block.

[0027] Secondly, this application also provides a stringing and inserting film device, which includes stringing equipment, conveying equipment, lifting equipment, heating device, and online inserting equipment as provided in the first aspect and various alternatives of the first aspect, wherein: The string welding equipment uses welding strips to string together battery cells to form a battery string. For any set of welding strips in the battery string used to weld two adjacent battery cells, the first half of the welding strip is welded to the grid line on the front side of the first battery cell in the two adjacent battery cells, and the second half of the welding strip is welded to the grid line on the back side of the second battery cell in the two adjacent battery cells. The conveying equipment transports the battery strings output by the stringing equipment to the film insertion station; The membrane strip transport device conveys the clamped and stretched n membrane strips to the membrane insertion station and lowers them, so that the n membrane strips are respectively aligned with the various membrane insertion positions of the battery string below. The lifting device is located below the film insertion station, lifting each film insertion position in the battery string to the rear battery cell, so that each film insertion position forms an open film insertion space. The membrane strip transport device inserts the n membrane strips into their respective insertion spaces; The heating device heats the membrane strip inserted into the membrane insertion space.

[0028] Optionally, the lifting device includes at least n lifting plates, which lift the battery cells at the corresponding lifting positions above the conveyor belt of the conveying device.

[0029] Optionally, the stringing equipment includes a ribbon feeding device, a cell feeding device, a conveying device, and a welding device, wherein: The welding strip feeding device is used to provide welding strips, and the battery cell feeding device is used to provide battery cells. The welding strip feeding device and the battery cell feeding device cooperate to stack battery cells and welding strips onto the conveying device; The conveying device transports the stacked battery cells and welding strips to the welding station, where the welding device located at the welding station welds them into battery strings.

[0030] Based on the above technical features, this application can achieve at least the following beneficial effects: By setting up a film cutting device to cut the film strip, and by setting up a film strip transport device to pick up and transport the cut film strip, it is convenient for subsequent film insertion operations, reduces manual intervention, and improves the efficiency of film strip generation and placement.

[0031] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0033] Figure 1A This is a schematic diagram of the structure of an online membrane insertion device provided in one embodiment of this application; Figure 1B This is a schematic diagram of the structure of the film cutting device and film strip transport device provided in one embodiment of this application; Figure 2A This is a schematic diagram of the structure of the film cutting device provided in one embodiment of this application; Figure 2B This is a schematic diagram of the film supply device provided in one embodiment of this application; Figure 2C This is a schematic diagram of the film supply device provided in another embodiment of this application; Figure 3A This is a schematic diagram of the structure of a membrane strip transport device provided in one embodiment of this application; Figure 3B This is a partial schematic diagram of the clamp installation in a membrane strip transport device provided in one embodiment of this application; Figure 3C This is a schematic diagram of the structure of a membrane strip transport device provided in another embodiment of this application; Figure 3D This is a top view of a membrane strip transport device provided in another embodiment of this application.

[0034] The reference numerals in the attached figures are as follows: 10. Membrane tape roll; 20. Film cutting device; 210. Film feeding device; 211. Membrane tape traveling bracket; 212. First membrane tape support plate; 213. Second membrane tape support plate; 214. First support plate drive mechanism; 215. Second support plate drive mechanism; 216. Membrane tape bearing plate; 217. Pressing plate; 218. Pressing cylinder; 220. Film cutting assembly; 221. First membrane tape clamping part; 2221. Mounting plate; 2222. Film cutting chuck; 2223. Chuck lifting mechanism; 2224. Stretching drive mechanism; 2225. Upper mounting plate of film cutting chuck; 2226. Lower mounting plate of film cutting chuck; 2227. Lifting column; 222. Second membrane tape clamping part; 223. Cutting part; 2231. Hot cutting wire; 2232. First connecting plate; 2233. Second connecting plate; 2234. Anti- 230. Protective plate; 231. Membrane belt traction device; 232. Membrane belt traction clamp; 233. Clamp drive mechanism; 234. Traction movement mechanism; 30. Membrane strip transport device; 310. Clamp; 311. Upper clamp; 312. Lower clamp; 320. Lower clamp mounting rail; 331. Drive motor; 332. Driving wheel; 333. Driven wheel; 334. Conveyor belt; 340. Upper clamp mounting rail; 350. First clamping part; 351. Connecting plate; 352. Sliding device; 353. Lifting cylinder; 360. Second clamping part; 361. Pressure rod; 362. Pressure rod drive mechanism; 370. Mounting plate; 380. Lifting mechanism; 391. Membrane strip stretching motor; 392. Telescopic block; 393. First connecting rod; 394. Second connecting rod; 40. Membrane belt. Detailed Implementation

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0036] Figure 1A This is a schematic diagram of the structure of an online membrane insertion device provided in one embodiment of this application. Figure 1B This is a schematic diagram of the structure of the film cutting device and film strip transporting device provided in one embodiment of this application, combined with... Figure 1A and Figure 1BAs shown, the online film insertion equipment provided in this application may include a film strip roll 10, a film cutting device 20, and a film strip transport device 30, wherein: the film strip roll 10 is used to carry the film strip roll; the film cutting device 20 cuts the film strip pulled out from the film strip roll 10 to obtain n film strips; the film strip transport device 30 clamps the n film strips from the film cutting device 20, separates the n film strips at a predetermined interval, and moves them synchronously to the corresponding film insertion station in the battery string for film insertion, the predetermined interval being the distance between two adjacent film insertion stations in the battery string.

[0037] In some embodiments of this application, the film strips can be stretched by the film cutting device 20. In this case, the film cutting device 20 can be configured to stretch the n film strips obtained after cutting, and the film strip transport device 30 clamps the stretched n film strips from the film cutting device 20; or, the film strips can be stretched by the film strip transport device 30. In this case, the film strip transport device 30 can clamp the n film strips from the film cutting device 20 and stretch the n film strips before inserting the film.

[0038] In some embodiments, the film strip pulling can be performed by the film cutting device 20 or the film strip transport device 30. In the first embodiment, the film cutting device 20 pulls the film strip out from the film strip roll 10 and cuts the pulled film strip. In the second embodiment, the film strip transport device 30 pulls the film strip out from the film strip roll 10 and passes it through the film cutting device 20, which cuts the film strip that has passed through the film cutting device 20.

[0039] Please see Figure 2A The diagram shown is a schematic diagram of the structure of a film cutting device provided in one embodiment of this application. The film cutting device 20 provided in this application may include a film supply device 210 and a film cutting assembly 220.

[0040] In actual production, the film supply device 210 is used to supply the film strip 40. The film strip is pulled out from the film supply device 210 and passes through the clamping and cutting channel of the film cutting assembly 220. The film cutting assembly 220 clamps both sides of the film strip 40 passing through the clamping and cutting channel and then cuts it to form a film strip.

[0041] The film cutting assembly 220 provided in this application may include at least a first film strip clamping part 221, a second film strip clamping part 222, and a cutting part 223. Optionally, the first film strip clamping part 221 and the second film strip clamping part 222 are spaced apart, and the width between them is adapted to the width of the film strip 40, so as to clamp the two sides of the film strip 40 respectively.

[0042] In one possible implementation, the film cutting device 20 has a film belt traction function. In this case, the film cutting device 20 may also include a film belt traction device 230, which pulls the film belt 40 out from the film supply device 210 and pulls it through the clamping and cutting channel of the film cutting assembly 220. That is, after the film belt traction device 230 pulls the film belt 40 out from the film supply device 210, it pulls out the pulled end of the film belt 40 through the clamping and cutting channel of the film cutting assembly 220.

[0043] The first membrane strip clamping part 221 and the second membrane strip clamping part 222 clamp the two sides of the membrane strip 40 passing through the clamping and cutting channel, respectively, and the clamped membrane strip 40 is cut by the cutting part 223 to obtain a membrane strip.

[0044] In one possible implementation, the film cutting device 20 has a film strip stretching function. In this case, the first film strip clamping part 221 and the second film strip clamping part 222 can also be configured to move away from each other in the horizontal direction in order to stretch the clamped cut film strip.

[0045] Please see Figure 2B and Figure 2C As shown, the film supply device 210 provided in this application may include at least a film strip passing bracket 211, a first film strip support plate 212, a second film strip support plate 213, a first support plate driving mechanism 214, and a second support plate driving mechanism 215. The film strip 40 provided by the film strip roll 10 is pulled out and passes through the film strip passing bracket 211.

[0046] The outlet of the film belt passing bracket 211 is located at the inlet of the clamping and cutting channel, and the pulled film belt 40 enters the clamping and cutting channel from the film belt passing bracket 211.

[0047] The membrane strip passing bracket 211 is configured to buffer the membrane strip pulled from the membrane strip roll and guide the membrane strip to the clamping and cutting channel. In practical applications, at least a portion of the membrane strip passing bracket 211 can be configured as two parallel passing strips, with the gap between the two parallel passing strips slightly larger than the membrane strip thickness. The membrane strip roll passes between the two passing strips to prevent the membrane strip roll from curling during the pulling process.

[0048] The first film strip support plate 212 and the second film strip support plate 213 are located on both sides of the film cutting channel, and respectively cooperate with the first film strip clamping part 221 and the second film strip clamping part 222 to clamp the film strip 40.

[0049] The first support plate drive mechanism 214 and the second support plate drive mechanism 215 respectively drive the first membrane strip support plate 212 and the second membrane strip support plate 213 to move away from each other, so as to stretch the two ends of the clamped membrane strip.

[0050] In this application, the first membrane belt support plate 212 and the second membrane belt support plate 213 are symmetrically and horizontally opposite each other. The first membrane belt support plate 212 and the first membrane belt clamping part 221 are vertically opposite each other, and the second membrane belt support plate 213 and the second membrane belt clamping part 222 are vertically opposite each other.

[0051] In order to ensure the cutting quality of the film strip 40 when it is cut, in practical applications, before cutting the film strip 40 that holds the film cutting channel, the film strip position at the entrance of the film cutting channel can be pressed down first. Correspondingly, the film supply device 210 provided in this application may also include a film strip support plate 216, a pressing plate 217 and a pressing cylinder 218.

[0052] The membrane belt support plate 216 is located between the discharge port of the membrane belt passing bracket 211 and the inlet of the clamping and cutting channel to support the membrane belt 40 pulled out from the membrane belt passing bracket 211.

[0053] The clamping plate 217 is located above the membrane belt support plate 216. The driving end of the clamping cylinder 218 is fixedly connected to the clamping plate 217. The clamping cylinder 218 drives the clamping plate 217 to move toward the membrane belt support plate 216 to clamp the membrane belt 40 at the membrane belt support plate 216.

[0054] To ensure successful cutting of the membrane strip, in practical applications, the first membrane strip support plate 212 and the second membrane strip support plate 213 are provided with clearance grooves on their upper surfaces that are opposite to the cutting wire. This allows the cutting wire to cut downwards from above the membrane strip 40 and enter the clearance grooves, thus completing the cutting of the membrane strip 40.

[0055] In one alternative implementation, please refer to [link / reference]. Figure 2A As shown, the first film tape clamping part 221 and the second film tape clamping part 222 have the same structure. The first film tape clamping part 221 may include a mounting plate 2221 and a film cutting chuck 2222, a chuck lifting mechanism 2223, and a stretching drive mechanism 2224 mounted on the mounting plate 2221, wherein: The film cutting chuck 2222 is connected to the chuck lifting mechanism 2223 and the stretching drive mechanism 2224 respectively. The chuck lifting mechanism 2223 drives the film cutting chuck 2222 to descend so as to press the film strip 40 passing through the film cutting channel. The stretching drive mechanism 2224 drives the film cutting chuck 2222 to move in a direction away from the center line of the film cutting channel and in a horizontal and vertical outward direction so as to stretch the film strip 40 being held.

[0056] Mounting plate 2221 is located outside the film cutting chuck 2222 and is fixed relative to the position of the film cutting channel.

[0057] The film cutting clamp 2222 in this application can be at least two, and at least two film cutting clamps 2222 are arranged side by side. Generally speaking, the number of film cutting clamps 2222 is the same as the number of film strips obtained by some film cutting, and each film cutting clamp 2222 holds the side of one film strip.

[0058] The film cutting clamps 2222 on the first film strip clamping part 221 and the second film strip clamping part 222 are arranged opposite to each other, and the set of oppositely arranged film cutting clamps 2222 are used to clamp the two sides of a film strip respectively.

[0059] Optionally, the first membrane belt clamping part 221 may further include a film cutting clamp head mounting plate 2225, a film cutting clamp head lower mounting plate 2226, and a lifting column 2227, wherein: The film cutting clamp mounting plate 2225 is mounted on the lower mounting plate 2226 of the film cutting clamp via the lifting column 2227.

[0060] The upper end of the film cutting chuck 2222 is fixed to the upper mounting plate 2225 of the film cutting chuck, and the lower pressing surface of the film cutting chuck 2222 is lower than the lower mounting plate 2226 of the film cutting chuck. It can be understood that the lower pressing surface of the film cutting chuck 2222 is installed through the lower mounting plate 2226 of the film cutting chuck, ensuring that the lower pressing surface of the film cutting chuck 2222 can clamp the film strip 40 at the corresponding position of the film cutting channel.

[0061] The drive end of the chuck lifting mechanism 2223 is fixedly connected to the upper mounting plate 2225 of the film cutting chuck, so as to drive the upper mounting plate 2225 of the film cutting chuck to lift relative to the lower mounting plate 2226 of the film cutting chuck.

[0062] Optionally, the driving end of the stretching drive mechanism 2224 is fixedly connected to the lower mounting plate 2226 of the film cutting chuck, so that the lower mounting plate 2226 of the film cutting chuck drives the film cutting chuck 2222 to move in a horizontal and vertical outward direction away from the center line of the film cutting channel. That is, the stretching drive mechanism 2224 in the first film strip clamping part 221 and the stretching drive mechanism 2224 in the second film strip clamping part 222 move away from each other at the same time, so as to stretch the film strip 40 in the film cutting channel.

[0063] In practical applications, the film strip 40 is usually made of soft material. In order to cut the film strip 40, improve cutting efficiency, and ensure cutting quality, the cutting part 223 provided in this application may include at least one hot cutting wire 2231, a first connecting plate 2232, a second connecting plate 2233, a first lifting drive part and a second lifting drive part. The hot cutting wire 2231 mentioned here cuts the film strip 40 at high temperature.

[0064] For any given hot-cutting filament 2231, both ends of the hot-cutting filament 2231 are respectively mounted on the first connecting plate 2232 and the second connecting plate 2233. That is, the two ends of a set of hot-cutting filaments 2231 are respectively mounted on the first connecting plate 2232 and the second connecting plate 2233. In order to ensure that the width of the multiple film strips cut is consistent, the hot-cutting filaments 2231 are usually set to be equidistant, and the distance between two adjacent filaments is the same as the width of the film strip to be cut.

[0065] In one possible implementation, to avoid safety issues caused by overheating of the hot cutting wire 2231, this application may also fix a protective plate 2234 between the first connecting plate 2232 and the second connecting plate 2233. The hot cutting wire 2231 may be located below the protective plate 2234 or inside the protective plate 2234.

[0066] The driving end of the first lifting drive unit is connected to the first connecting plate 2232, and the driving end of the second lifting drive unit is connected to the second connecting plate 2233. The first lifting drive unit and the second lifting drive unit cooperate to drive the first connecting plate 2232 and the second connecting plate 2233 to lift, so as to drive the hot cutting wire 2231 to lift.

[0067] The extension direction of the hot-cutting filament 2231 is perpendicular to the traction direction of the membrane belt 40.

[0068] The first and second lifting drive units work together to drive the first connecting plate 2232 and the second connecting plate 2233 to rise and fall, which can ensure that multiple hot cutting wires 2231 can cut the film strip 40 at the same time, greatly improving the cutting efficiency.

[0069] When the film cutting device 20 has a film belt traction function, please refer to [the original text]. Figure 2A As shown, the membrane belt traction device 30 provided in this application may include at least a membrane belt traction clamp 231, a clamp drive mechanism 232, and a traction movement mechanism 233.

[0070] The traction moving mechanism 233 is connected to the traction clamp, and the driving end of the clamp driving mechanism 232 is connected to the traction clamp; the traction moving mechanism 233 drives the traction clamp to at least the film supply device 210, and the clamp driving mechanism 232 drives the traction clamp to hold the film strip 40 at the film supply device 210.

[0071] In one possible implementation, depending on the width of the membrane belt 40, at least two membrane belt traction clamps 231 can be arranged side by side, and the at least two membrane belt traction clamps 231 are evenly spaced and configured to simultaneously clamp the ends of the membrane belt 40 to ensure the flatness of the membrane belt 40 when it is being pulled.

[0072] Figure 3AThis is a schematic diagram of the structure of a membrane strip transport device provided in one embodiment of the present application. The membrane strip transport device 30 provided in the present application may include at least two sets of membrane strip transport sections arranged opposite to each other. The two sets of membrane strip transport sections respectively clamp the two ends of n membrane strips. For each set of membrane strip transport sections, the membrane strip transport section includes n sets of clamps 310, a lower clamp mounting track 320 and a drive mechanism.

[0073] Generally, the two sets of membrane strip transport sections have the same structure. Each set of membrane strip transport sections is equipped with n sets of clamps 310. The clamps 310 on the two sets of membrane strip transport sections correspond one-to-one and cooperate to clamp the two ends of the same membrane strip. In other words, the i-th clamp 310 on the first set of membrane strip transport sections and the i-th clamp 310 on the second set of membrane strip transport sections cooperate to clamp the two ends of the i-th membrane strip respectively.

[0074] Each set of clamps 3310 includes an upper clamp 11 and a lower clamp 312 that are positioned opposite each other for clamping the film strip. The lower clamp 12 of each set of clamps 3310 is mounted on a lower clamp mounting track 320. The drive mechanism is connected to the n clamps 310 in a transmission manner, and the drive mechanism drives the n sets of clamps 310 to move along the lower clamp mounting track 320.

[0075] In practical applications, the spacing between the n membrane strips at the membrane strip feeding station is relatively small, while the spacing between the membrane strips required at the membrane insertion station is larger. Therefore, when the n sets of clamps 310 pick up n membrane strips, it is usually necessary to adjust the spacing between the n membrane strips to ensure that the spacing between the membrane strips meets the membrane insertion spacing requirements. Furthermore, the spacing adjustment between the n sets of clamps 310 also needs to meet the picking spacing requirements for the n membrane strips at the membrane strip feeding station. Therefore, the drive mechanism in this application can drive the n sets of clamps 310 to move along the lower clamp mounting track 320 and can adjust the spacing between the n sets of clamps 310.

[0076] In order to achieve the spacing adjustment between the n groups of chucks 310, in one possible implementation, the second to the nth lower chucks 312 are movably mounted on the lower chuck mounting rail 320, and the groups of chucks 310 are interconnected by flexible components.

[0077] The first set of clamps 310 is fixedly installed, that is, the upper clamp 311 and the lower clamp 312 of the first set of clamps 310 are both fixedly installed. The nth set of clamps 310 is connected to the drive mechanism through a connector. When the drive mechanism drives the nth set of clamps 310 to move along the lower clamp mounting track 320, the flexible parts drive the clamps 310 to move closer and further away from each other to adjust the spacing of the n membrane strips being clamped.

[0078] To achieve clamping and opening between the upper chuck 311 and the lower chuck 312, this application provides at least two installation methods for the chuck 310, which can be found in [reference 1]. Figure 3B and Figure 3CAs shown.

[0079] Figure 3B This is a partial schematic diagram of the clamp installation in a membrane strip transport device provided in one embodiment of this application, combined with... Figure 3A and Figure 3B The membrane strip transport unit provided in this application may further include an upper clamp mounting track 340, with the tail of each upper clamp 311 mounted on the upper clamp mounting track 340. The middle portions of each set of upper clamps 311 and lower clamps 312 are connected by a pin. The membrane strip transport unit may further include first clamping parts 350 mounted at both ends of the upper clamp mounting track 340. The two first clamping parts 350 operate synchronously, jointly driving the upper clamp mounting track 340 to rise or fall. When the upper clamp mounting track 340 rises, it drives the tail of each upper clamp 311 to rise. The clamping part of each upper clamp 311 rotates around the corresponding rotation axis to press against the clamping part of the corresponding lower clamp 312.

[0080] See still Figure 3B To achieve the clamping action between the upper chuck 311 and the lower chuck 312, the first clamping action part 350 may include a connecting plate 351, a sliding device 352, and a lifting cylinder 353, wherein: The connecting plate 351 is mounted on the sliding device 352. The sliding device 352 may include a slider, a sliding drive, and a slide rail. The connecting plate 351 is mounted on the slide rail via the slider, and the sliding drive drives the connecting plate 351 to move along the slide rail.

[0081] The end of the upper clamp mounting rail 340 passes through the connecting plate 351 and is connected to the drive end of the lifting cylinder 353.

[0082] The lifting cylinder 353 drives the upper chuck mounting rail 340 to rise along the sliding device 352, thereby causing the mounting parts of each upper chuck 311 on the upper chuck mounting rail 340 to rise, and then causing the clamping part of the upper chuck 311 to move around the rotation axis toward the clamping part of the corresponding lower chuck 312, so as to realize the clamping of the chuck.

[0083] The lifting cylinder 353 drives the upper chuck mounting rail 340 to descend along the sliding device 352, thereby causing the mounting parts of each upper chuck 311 on the upper chuck mounting rail 340 to descend, and in turn causing the clamping part of the upper chuck 311 to move away from the clamping part of the corresponding lower chuck 312 around the rotation axis, so as to open the chuck 310.

[0084] Figure 3C This is a schematic diagram of the structure of a membrane strip transport device provided in another embodiment of this application. Figure 3CIn the illustrated embodiment, the tail ends of the upper clamp 311 and the lower clamp 312 of each set of clamps 310 provided in this application are connected by springs, and the middle portions of the upper clamp 311 and the lower clamp 312 of each set of clamps 310 are mounted by pins. The film strip transport unit also includes a second clamping action part 360, which includes a pressure rod 361 and a pressure rod driving mechanism 362, wherein: The drive end of the pressure rod drive mechanism 362 is connected to the pressure rod 361, which is located above the tail of each upper clamp 311.

[0085] The pressure rod drive mechanism 362 drives the pressure rod 361 downward, and the pressure rod 361 presses the tail of each upper clamp 311 against the tail of the corresponding lower clamp 312, thereby opening the clamp 310.

[0086] The pressure rod drive mechanism 362 drives the pressure rod 361 upward, and the pressure rod 361 moves away from the tail of each upper chuck 311. Under the action of the corresponding spring, the tail of each upper chuck 311 separates from the tail of the corresponding lower chuck 312, thereby realizing the clamping of the chuck 310.

[0087] See still Figure 3A As shown, in order to drive the n sets of chucks 310, the drive mechanism provided in this application may include a drive motor 331, a drive wheel 332, a driven wheel 333, and a conveyor belt 334.

[0088] The driving wheel 332 and the driven wheel 333 are respectively installed at both ends of the mounting clamp where the lower chuck mounting track 320 is located. The conveyor belt is sleeved on the driving wheel 332 and the driven wheel 333. The nth set of chucks 310 is fixed to the conveyor belt 334 through the connector. The driving end of the drive motor 331 is connected to the driving wheel 332 for transmission.

[0089] The drive motor 331 rotates in the forward direction, driving the nth set of chucks 310 to move along the lower chuck mounting track 320 towards the first set of chucks 310 via the drive wheel 332 and the conveyor belt 334; the drive motor 331 also rotates in the reverse direction, driving the nth set of chucks 310 to move along the lower chuck mounting track 320 away from the first set of chucks 310 via the drive wheel 332 and the conveyor belt 334. The rotation angle and number of rotations of the drive motor 331 determine the spacing between the n sets of chucks 310.

[0090] In one possible implementation, while ensuring that the chuck 310 can move smoothly on the lower chuck mounting track 320, in order to further ensure that adjacent chucks 310 can approach each other to clamp membrane strips with small spacing, the lower chuck mounting track 320 provided in this application may also include four guide rails arranged in a matrix. One of two adjacent lower chucks 312 is sleeved on the first set of diagonally opposite guide rails through a sleeve, and the other lower chuck 312 is sleeved on the second set of diagonally opposite guide rails through a sleeve.

[0091] The membrane strip transport device 30 may also include a mounting plate 370, with two sets of membrane strip transport parts fixed on the mounting plate 370. The lower end of the mounting plate 370 is slidably mounted on the slide rail of the machine tool via a slider.

[0092] The membrane strip transport device 30 may also include two lifting mechanisms 380, which are respectively installed at the lower ends of the two sets of membrane strip transport sections, and drive the two sets of membrane strip transport sections to rise and fall respectively.

[0093] In one possible implementation, the membrane strip transport device 30 provided in this application can also stretch the membrane strip being held and transported, such as... Figure 3D The image shown is a top view of a film strip transport device provided in another embodiment of this application. The film strip transport device 30 provided in this application may also include a film strip stretching motor 391, a telescopic block 392, a first connecting rod 393, and a second connecting rod 394.

[0094] The telescopic block 392 is located between the two sets of membrane strip transport parts. The first connecting rod 393 and the second connecting rod 394 are respectively connected between the telescopic block 392 and the two sets of membrane strip transport parts. That is, the first connecting rod 393 is connected between the telescopic block 392 and the first set of membrane strip transport parts, and the second connecting rod 394 is connected between the telescopic block 392 and the second set of membrane strip transport parts.

[0095] The drive end of the membrane stretching motor 391 is connected to the telescopic block 392. The telescopic block 392 is typically mounted on a slide rail located in front of the two sets of membrane strip transport sections and aligned with their extension direction. The membrane stretching motor 391 drives the telescopic block 392 to move along the slide rail. Correspondingly, the first connecting rod 393 and the second connecting rod 394, driven by the telescopic block 392, drive the two sets of membrane strip transport sections to move closer and further apart. When the two sets of membrane strip transport sections move further apart, the stretching of the membrane strips held by the two sets of membrane strip transport sections is achieved.

[0096] In summary, the online membrane insertion device provided in this application cuts the membrane strip by setting a membrane cutting device and picks up and transports the cut membrane strip by setting a membrane strip transport device, which facilitates subsequent membrane insertion operations, reduces manual intervention, and improves the efficiency of membrane strip generation and placement.

[0097] This application also provides a stringing and film insertion device, which includes a stringing device, a conveying device, a lifting device, a heating device, and an online film insertion device. The structure of the online film insertion device can be found in [reference needed]. Figures 1A-3D The description will not be repeated here.

[0098] The stringing equipment uses welding strips to string together solar cells to form a battery string. Specifically, for any set of welding strips used to weld two adjacent solar cells in the battery string, the first half of the welding strip is welded to the grid line on the front side of the first solar cell in the two adjacent solar cells, and the second half of the welding strip is welded to the grid line on the back side of the second solar cell in the two adjacent solar cells.

[0099] The conveying equipment transports the battery strings output from the stringing equipment to the membrane insertion station.

[0100] The membrane strip transport device conveys the clamped and stretched n membrane strips to the membrane insertion station and lowers them, so that the n membrane strips are respectively aligned with the various membrane insertion positions of the battery string below.

[0101] The lifting equipment is located below the membrane insertion station, lifting each membrane insertion position in the battery string to the rear battery cell, thus creating an open membrane insertion space at each insertion position.

[0102] The membrane strip transport device inserts n membrane strips into their respective insertion spaces. In one optional embodiment, the membrane strip transport device can simultaneously insert the n membrane strips into their respective insertion spaces to improve insertion efficiency. For example, after separating the n membrane strips and assigning them to their respective insertion spaces, the membrane strip transport device controls two membrane strip transport units to simultaneously convey the held n membrane strips forward, thus inserting the n membrane strips into their corresponding insertion spaces, completing the simultaneous insertion of the n membrane strips.

[0103] The heating device heats the membrane strip inserted into the membrane insertion space.

[0104] In order to achieve multiple lifting to improve the lifting and membrane insertion efficiency, the lifting device provided in this application may include at least n lifting plates, and the n lifting plates will lift the battery cells at the corresponding lifting positions above the conveyor belt of the conveying device.

[0105] In one possible implementation, the string welding equipment provided in this application may include a ribbon feeding device, a cell feeding device, a conveying device, and a welding device, wherein: the ribbon feeding device is used to provide ribbon, and the cell feeding device is used to provide cells; the ribbon feeding device and the cell feeding device cooperate to stack the cells and ribbon onto the conveying device; the conveying device transports the stacked cells and ribbon to the welding station, where the welding device located at the welding station welds them into a battery string.

[0106] In summary, the stringing and film insertion equipment provided in this application integrates stringing equipment with online film insertion equipment, enabling online film insertion of battery strings output by stringing equipment. This results in high film insertion efficiency and saves space in the production equipment layout.

[0107] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention described herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not invented herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

[0108] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. An online membrane insertion device, characterized in that, The online film insertion equipment includes a film strip roll, a film cutting device, and a film strip transport device, wherein: The membrane tape roll is used to carry the membrane tape roll; The film cutting device cuts the film strip drawn from the film roll to obtain n film strips; The film strip transport device clamps the n film strips from the film cutting device, separates the n film strips at a predetermined interval, and moves them synchronously to the corresponding film insertion station in the battery string for film insertion. The predetermined interval is the distance between two adjacent film insertion stations in the battery string. The membrane strip transport device includes two sets of membrane strip transport sections arranged opposite to each other. Each set of membrane strip transport sections clamps both ends of n membrane strips. For each set of membrane strip transport sections, the membrane strip transport section includes n sets of clamps, a lower clamp mounting track, and a drive mechanism, wherein: Each set of clamps includes an upper clamp and a lower clamp that are positioned opposite each other for clamping the film strip. The lower clamp of each set of clamps is mounted on the lower clamp mounting track. The drive mechanism is connected to n sets of clamps and drives the n sets of clamps to move along the lower clamp mounting track. The second to nth lower chucks are movably mounted on the lower chuck mounting rail, and the chucks are interconnected by flexible components. The first set of clamps is fixedly installed, and the nth set of clamps is connected to the drive mechanism through a connector. The drive mechanism drives the nth set of clamps to move along the lower clamp mounting track. The flexible component drives the clamps to move closer and further apart from each other to adjust the spacing of the n membrane strips being clamped. The membrane strip transport device further includes a membrane strip stretching motor, a telescopic block, a first connecting rod, and a second connecting rod, wherein: The telescopic block is located between the two sets of membrane strip transport sections, and the first connecting rod and the second connecting rod are respectively connected between the telescopic block and the two sets of membrane strip transport sections; The drive end of the membrane stretching motor is connected to the telescopic block. The membrane stretching motor drives the telescopic block to move along the extension direction of the membrane transport section. The first connecting rod and the second connecting rod drive the two sets of membrane transport sections to move closer to each other and further away from each other under the action of the telescopic block.

2. The online membrane insertion device according to claim 1, characterized in that, The film cutting device is further configured to stretch the n film strips obtained after cutting, and the film strip transport device clamps the stretched n film strips from the film cutting device; or, After the membrane strip transport device clamps the n membrane strips from the membrane cutting device, it stretches the n membrane strips before inserting the membrane.

3. The online membrane insertion device according to claim 1, characterized in that, The film cutting device pulls the film strip from the film strip roll and cuts the pulled film strip; or, The film strip transport device pulls the film strip from the film strip roll and passes it through the film cutting device, which cuts the film strip that has passed through the film cutting device.

4. The online membrane insertion device according to claim 1, characterized in that, The film cutting device includes a film supply device and a film cutting assembly. The film cutting assembly includes a first film tape clamping part, a second film tape clamping part, and a cutting part, wherein: After being pulled out from the film supply device, the film strip passes through the clamping and cutting channel of the film cutting assembly; The first and second film strip clamping parts clamp the two sides of the film strip passing through the clamping and cutting channel, respectively, and the cutting part cuts the clamped film strip to obtain a film strip.

5. The online membrane insertion device according to claim 4, characterized in that, The film cutting device also includes a film belt traction device, which pulls the film belt out from the film supply device and through the film cutting channel of the film cutting assembly.

6. The online membrane insertion device according to claim 4, characterized in that, The first membrane strip clamping portion and the second membrane strip clamping portion are also configured to be spaced apart from each other in the horizontal direction to achieve stretching of the clamped membrane strip.

7. The online membrane insertion device according to claim 4, characterized in that, The first film tape clamping part and the second film tape clamping part have the same structure. The first film tape clamping part includes a mounting plate and a film cutting chuck, a chuck lifting mechanism, and a stretching drive mechanism mounted on the mounting plate, wherein: The film cutting chuck is connected to the chuck lifting mechanism and the stretching drive mechanism respectively. The chuck lifting mechanism drives the film cutting chuck to descend so as to press the film strip passing through the film cutting channel. The stretching drive mechanism drives the film cutting chuck to move in a direction away from the center line of the film cutting channel and in a horizontal and vertical outward direction so as to stretch the film strip being held. The mounting plate is located outside the film cutting clamp and is fixed relative to the position of the film cutting channel.

8. The online membrane insertion device according to claim 7, characterized in that, The first film belt clamping part further includes a film cutting clamp head mounting plate, a film cutting clamp lower mounting plate, and a lifting column, wherein: The upper mounting plate of the film cutting chuck is mounted on the lower mounting plate of the film cutting chuck via the lifting column; The upper end of the film cutting chuck is fixed to the upper mounting plate of the film cutting chuck, and the lower pressing surface of the film cutting chuck passes through the lower mounting plate of the film cutting chuck. The drive end of the chuck lifting mechanism is fixedly connected to the upper mounting plate of the film cutting chuck to drive the upper mounting plate of the film cutting chuck to rise and fall relative to the lower mounting plate of the film cutting chuck. The driving end of the stretching drive mechanism is fixedly connected to the lower mounting plate of the film cutting chuck, so that the film cutting chuck is driven by the lower mounting plate of the film cutting chuck to move in a horizontal and vertical outward direction away from the center line of the film cutting channel.

9. The online membrane insertion device according to claim 1, characterized in that, The membrane strip transport unit also includes an upper clamp mounting track, on which each upper clamp is mounted. The middle part of each set of upper and lower clamps is connected by a pin. The membrane strip transport unit also includes first clamping parts mounted at both ends of the upper clamp mounting track. The two first clamping parts move synchronously to drive the upper clamp mounting track to rise or fall. When the upper clamp mounting track rises, it drives the tail ends of each upper clamp to rise. The clamping part of each upper clamp rotates around the corresponding rotation axis to press against the clamping part of the corresponding lower clamp.

10. The online membrane insertion device according to claim 1, characterized in that, The tail ends of the upper and lower clamps of each set of clamps are connected by springs, and the middle part of the upper and lower clamps of each set of clamps is mounted on a rotating shaft. The film strip transport unit also includes a second clamping part, which includes a pressure rod and a pressure rod drive mechanism, wherein: The drive end of the pressure rod drive mechanism is connected to the pressure rod, and the pressure rod is located above the tail of each upper clamp. The pressure rod driving mechanism drives the pressure rod downward, and the pressure rod presses the tail of each upper clamp against the tail of the corresponding lower clamp, thereby opening the clamp; The pressure rod driving mechanism drives the pressure rod upward, and the pressure rod moves away from the tail of each upper clamp. Under the action of the corresponding spring, the tail of each upper clamp separates from the tail of the corresponding lower clamp, thereby achieving clamping of the clamp.

11. A serial welding and intercalation device, characterized in that, The string welding and film insertion equipment includes string welding equipment, conveying equipment, lifting equipment, heating device, and online film insertion equipment as described in any one of claims 1-10, wherein: The string welding equipment uses welding strips to string together battery cells to form a battery string. For any set of welding strips in the battery string used to weld two adjacent battery cells, the first half of the welding strip is welded to the grid line on the front side of the first battery cell in the two adjacent battery cells, and the second half of the welding strip is welded to the grid line on the back side of the second battery cell in the two adjacent battery cells. The conveying equipment transports the battery strings output by the stringing equipment to the film insertion station; The membrane strip transport device conveys the clamped and stretched n membrane strips to the membrane insertion station and lowers them, so that the n membrane strips are respectively aligned with the respective membrane insertion positions of the battery string below. The lifting device is located below the film insertion station, lifting each film insertion position in the battery string to the rear battery cell, so that each film insertion position forms an open film insertion space. The membrane strip transport device inserts the n membrane strips into their respective insertion spaces; The heating device heats the membrane strip inserted into the membrane insertion space.

12. The intercalation device for welding membranes according to claim 11, characterized in that, The lifting device includes at least n lifting plates, which lift the battery cells at the corresponding lifting positions above the conveyor belt of the conveying device.

13. The intercalation device for welding membranes according to claim 12, characterized in that, The string welding equipment includes a ribbon feeding device, a cell feeding device, a conveying device, and a welding device, wherein: The welding strip feeding device is used to provide welding strips, and the battery cell feeding device is used to provide battery cells; The welding strip feeding device and the battery cell feeding device cooperate to stack battery cells and welding strips onto the conveying device; The conveying device transports the stacked battery cells and welding strips to the welding station, where the welding device located at the welding station welds them into battery strings.

Images