Battery piece film stacking device

Abstract

The utility model provides a battery piece film stacking device, which comprises a film belt feeding mechanism, a slitting mechanism, a first conveying mechanism and a carrying mechanism, and is characterized in that the film belt feeding mechanism is configured to be used for mounting a film belt material roll and driving the film belt material roll to rotate so as to release a film belt; the slitting mechanism is configured to slit the film belt discharged by the film belt feeding mechanism to obtain a plurality of film strips; the first conveying mechanism is configured to convey at least one battery piece to a film stacking station each time; the carrying mechanism is configured to pick up at least one film strip from the slitting mechanism every time and stack the picked film strips on the edges of the battery pieces located on the film stacking station in a one-to-one correspondence mode so as to obtain at least one battery unit. When the battery piece film laminating device is used for preparing the battery units in advance, the operation of lifting the battery pieces to insert the film in the subsequent stringing process is omitted, so that the risk of subfissure or fragmentation of the battery pieces caused by the film insertion operation can be avoided, and the stringing quality of battery strings is ensured.

Description

Technical Field

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

[0002] A battery string is formed by connecting several battery cells in series via solder strips. Figure 1 A common type of solar cell string is shown, in which the front half of the ribbon assembly 200 of two adjacent solar cells 100 is stacked and welded to the upper surface of the front (e.g., right) solar cell 100, while the rear half of the ribbon assembly 200 is welded to the lower surface of the rear (e.g., left) solar cell 100. When this structure is subsequently laminated into a photovoltaic module, localized stress occurs at the edge contact points between the ribbon assembly 200 and the solar cell 100, which can easily lead to microcracks in the solar cell 100.

[0003] like Figure 1 As shown, a feasible solution to the above problem is to place a membrane strip 300 between two adjacent battery cells 100 after the battery string is formed, so as to buffer the stress at the edge contact between the welding strip group 200 and the battery cell 100 through the membrane strip 300.

[0004] To fabricate battery strings with a membrane strip between adjacent cells, the conventional process involves first welding the cells to a ribbon assembly to form a battery string, and then inserting the membrane strip into the spaces between the cells. Since the cells and ribbon are already welded, one of the adjacent cells needs to be lifted to create a gap before the membrane strip can be inserted. However, this lifting process can easily cause microcracks or fragmentation of the cells, affecting the quality of the assembled battery string. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a battery cell stacking device, the detailed technical solution of which is as follows:

[0006] A battery cell stacking apparatus includes a film tape feeding mechanism, a slitting mechanism, a first conveying mechanism, and a handling mechanism, wherein:

[0007] The film tape feeding mechanism is configured to install the film tape roll and drive the film tape roll to rotate to release the film tape;

[0008] The slitting mechanism is configured to slit the membrane belt released by the membrane belt feeding mechanism to obtain several membrane strips;

[0009] The first conveying mechanism is configured to convey at least one solar cell to the lamination station each time.

[0010] The conveying mechanism is configured to pick up at least one film strip from the slitting mechanism each time, and to stack the picked-up film strips one by one onto the edge of the battery cell located at the stacking station to obtain at least one battery cell.

[0011] The battery cell stacking apparatus provided in this application first cuts the unwound film strip into film strips using a slitting mechanism. Then, through the cooperation of a first conveying mechanism and a transport mechanism, the film strips are attached to the battery cells to obtain a battery unit composed of the battery cells and film strips.

[0012] In the subsequent battery stringing process, the battery cells and welding ribbons are laid out in a string according to a predetermined stringing rule, so that the membrane strips can all enter the corresponding inter-cell positions.

[0013] The battery cell stacking device of this application pre-prepares battery cells, eliminating the need for lifting the battery cells to insert the film during the subsequent stringing process. This avoids the risk of microcracks or fragments in the battery cells caused by the film insertion operation, and ensures the quality of the battery string.

[0014] In some embodiments, the slitting mechanism includes a film strip cutting mechanism and a film strip cutting mechanism, wherein: the film strip cutting mechanism is configured to cut the film strip released from the film strip roll to obtain film strip segments of a predetermined length; the film strip cutting mechanism is configured to obtain film strip segments from the film strip cutting mechanism and to cut the film strip segments into a plurality of film strips.

[0015] By setting the slitting mechanism as a film strip cutting mechanism and a film strip cutting mechanism, when the film strip cutting mechanism cuts the current film strip segment into several film strips, the film strip cutting mechanism can simultaneously cut the film strip released from the film strip roll to obtain the next film strip segment, thereby improving the slitting efficiency of the film strip and speeding up the working cycle.

[0016] In some embodiments, the film tape cutting mechanism includes a pressing and cutting section, a support platform, and a traction section, wherein:

[0017] The clamping and cutting section is located between the film belt feeding mechanism and the support table. The film belt released from the film belt roll is clamped by the clamping and cutting section. The traction section is configured to clamp the free end of the film belt from the clamping and cutting section. The clamping and cutting section releases the clamped film belt, and the traction section pulls the clamped film belt to the support table along the first direction. The clamping and cutting section is configured to clamp the film belt and cut the film belt to obtain film belt segments. The support table is configured to absorb the film belt segments.

[0018] The free end of the film strip released from the roll is clamped and fixed to the clamping and cutting section, ensuring that the traction unit can always pick up the free end of the film strip from the clamping and cutting section. After the traction unit picks up the free end of the film strip, the clamping and cutting section immediately releases the film strip. Subsequently, the traction unit pulls the film strip onto the support platform while maintaining the clamping of the free end of the film strip, and the clamping and cutting section clamps the film strip again and then cuts the film strip, thus ensuring the cutting effect of the film strip and ensuring that the new free end of the film strip after cutting is still clamped and fixed to the clamping and cutting section. In addition, the support platform can hold the film strip segment, preventing the film strip segment from shifting or slipping, ensuring that the conveying mechanism can smoothly pick up the film strip segment from the support platform.

[0019] In some embodiments, the film tape feeding mechanism is further configured to drive the film tape roll to translate along a second direction to adjust the position of the film tape roll in the second direction, which is perpendicular to the first direction; and / or, the clamping and cutting part is further configured to drive the clamped film tape to translate along the second direction to adjust the position of the film tape in the second direction.

[0020] Due to factors such as vibration of the film belt feeding mechanism and traction error of the traction unit, the film belt pulled into the pressing and cutting section experiences a positional shift in the second direction, ultimately resulting in a tilted cut edge and the inability to obtain a qualified film belt segment. By controlling the translation of the film belt feeding mechanism and / or the pressing and cutting section along the second direction, the positional shift of the film belt in the second direction is corrected, thereby ensuring the accuracy of the position of the film belt to be cut within the pressing and cutting section, and ultimately ensuring the acquisition of a qualified film belt segment.

[0021] In some embodiments, the film tape feeding mechanism includes a first mounting frame, a second mounting frame, a first translation drive module, a feeding roller, and a rotary drive module, wherein: the second mounting frame is slidably connected to the first mounting frame and is drive-connected to the first translation drive module disposed on the first mounting frame; the feeding roller is rotatably connected to the second mounting frame and is drive-connected to the rotary drive module disposed on the second mounting frame, the feeding roller is used to mount the film tape roll, the rotary drive module is configured to drive the feeding roller to rotate so as to drive the film tape roll to rotate synchronously; the first translation drive module is configured to drive the second mounting frame to slide relative to the first mounting frame in a second direction so as to adjust the position of the film tape roll in the second direction.

[0022] By configuring the film belt feeding mechanism, the film belt feeding mechanism can drive the film belt roll to rotate, thereby automatically releasing the film belt from the film belt roll, and the film belt feeding mechanism can adjust the position of the film belt roll in the second direction, thereby achieving position correction of the film belt released from the film belt roll in the second direction.

[0023] In some embodiments, the clamping and cutting section includes a base, a second translational drive module, a third mounting bracket, a first clamping assembly, and a cutting assembly, wherein: the third mounting bracket is slidably connected to the base, the second translational drive module is disposed on the base and is driveably connected to the third mounting bracket; the first clamping assembly and the cutting assembly are disposed on the third mounting bracket, and the film strip passes through the first clamping assembly and the cutting assembly in sequence, wherein the first clamping assembly is configured to clamp the film strip from a first side of the cutting assembly, and the cutting assembly is configured to cut the clamped film strip to obtain a film strip segment; the second translational drive module is configured to drive the third mounting bracket to slide relative to the base in a second direction to adjust the position of the film strip clamped by the first clamping assembly in the second direction.

[0024] By configuring the pressing and cutting part, the pressing and cutting part can perform pressing and cutting of the membrane belt to obtain a membrane belt segment, and the pressing and cutting part can drive the pressed membrane belt to translate in the second direction, thereby realizing the position correction of the membrane belt in the second direction.

[0025] In some embodiments, the clamping and cutting portion further includes a second clamping assembly disposed on a third mounting bracket, the cutting assembly being located between the first clamping assembly and the second clamping assembly, the second clamping assembly being configured to clamp the film strip to a first end of the support platform from a second side of the cutting assembly, the first end of the support platform being the end of the support platform near the clamping and cutting portion; the cutting assembly being configured to cut the film strip between the first clamping assembly and the second clamping assembly.

[0026] The first and second clamping components clamp the membrane strip from both sides of the cutting component, thereby fully tauting the membrane strip when it is cut to form a straight cut, ultimately ensuring that a membrane strip segment with a straight edge is obtained.

[0027] In some embodiments, the third mounting bracket includes a first mounting bracket, a second mounting bracket, and an eighth lifting drive module, wherein:

[0028] The first mounting bracket is slidably connected to the base, and the second translation drive module is drivenly connected to the first mounting bracket.

[0029] The second mounting bracket is slidably and vertically connected to the first mounting bracket. The first clamping component and the second clamping component are both mounted on the second mounting bracket, and the cutting component is mounted on the first mounting bracket.

[0030] The eighth lifting drive module is mounted on the first mounting bracket and is used to drive the second mounting bracket to move up and down between the first high position and the first low position.

[0031] The eighth lifting drive module is configured to drive the second mounting bracket down to the first low position to tension the membrane strip to the first end of the support platform; the eighth lifting drive module is also configured to drive the second mounting bracket up to the first high position, so that the new free end of the membrane strip after cutting is higher than the support platform.

[0032] In some embodiments, the clamping and cutting part further includes a ninth translation drive module, the movable end of which is connected to the base, and the ninth translation drive module is configured to drive the base toward or away from the first end of the support platform.

[0033] In some embodiments, the film tape cutting mechanism further includes a detection unit disposed between the film tape feeding mechanism and the pressing and cutting section; the film tape released from the film tape feeding mechanism passes through the detection unit and enters the pressing and cutting section; the detection unit is configured to detect the edge of the film tape to determine whether the film tape is skewed; the film tape feeding mechanism is configured to adjust the position of the film tape roll in the second direction to correct the film tape skew when the detection unit detects that the film tape is skewed; and / or, the pressing and cutting section is configured to adjust the position of the film tape in the second direction to correct the film tape skew when the detection unit detects that the film tape is skewed.

[0034] By setting a detection unit between the film belt feeding mechanism and the pressing and cutting part, the position of the film belt to be entered into the pressing and cutting part in the second direction is detected to determine whether the film belt is deviated, so that the film belt feeding mechanism and / or the pressing and cutting part can perform the deviation correction operation of the film belt according to the detection result.

[0035] In some embodiments, the film strip cutting mechanism includes a cutting section and a receiving section, wherein: the cutting section is configured to pick up film strip segments from the film strip cutting mechanism and transport the picked-up film strip segments to the receiving section for cutting; the receiving section is configured to cooperate with the cutting section to cut the film strip segments into a plurality of film strips.

[0036] By configuring the film strip cutting mechanism, it can automatically pick up film strip segments from the film strip cutting mechanism and cut the film strip segments into several film strips. That is, there is no need to set up an additional conveying mechanism to transport the film strip segments to the film strip cutting mechanism for cutting, thereby reducing the complexity of the equipment.

[0037] In some embodiments, the cutting section includes a movable module, a fourth mounting frame, an adsorption plate, and a cutting assembly, wherein: the fourth mounting frame is connected to a movable part of the movable module; the adsorption plate is disposed at the bottom of the fourth mounting frame, and a plurality of cutting slits running from top to bottom through the adsorption plate are arranged side by side at intervals on the adsorption plate; the cutting assembly is disposed on the fourth mounting frame and located above the adsorption plate; the movable module is configured to drive the fourth mounting frame and the adsorption plate to translate and lift, so as to drive the adsorption plate to pick up film strip segments from the film strip cutting mechanism and to transport the picked-up film strip segments to the receiving section; the cutting assembly is configured to cut the film strip segments located on the receiving section through the plurality of cutting slits.

[0038] By configuring the cutting section to include a moving module, a fourth mounting bracket, an adsorption plate, and a slitting assembly, the adsorption plate, driven by the moving module, picks up film strip segments from the film strip cutting mechanism and transports the film strip segments to the receiving section. Furthermore, the slitting assembly is able to slit the film strip segments transported to the receiving section via several slitting slits on the adsorption plate, thereby obtaining several film strips.

[0039] In some embodiments, the slitting assembly includes a third translation drive module, a first lifting drive module, a cutter holder, and a plurality of cutters, wherein: the third translation drive module is disposed on a fourth mounting bracket, the first lifting drive module is connected to a movable part of the third translation drive module, the cutter holder is connected to a movable part of the first lifting drive module, and a plurality of cutters are arranged side by side at intervals on the cutter holder and correspond one-to-one with the slitting seams; the first lifting drive module is configured to drive the cutter holder to descend, so that the plurality of cutters pass downward through the corresponding slitting seams and abut against the film strip segment located on the receiving portion; the third translation drive module is configured to drive the cutter holder to reciprocate along the extension direction of the slitting seams, so as to drive the plurality of cutters to slit the film strip segment into a plurality of film strips.

[0040] By configuring the slitting component, it can pass downward through several slitting slits on the adsorption plate and slit the membrane strip into several membrane strips in one go, thereby improving the slitting efficiency of the membrane strip.

[0041] In some embodiments, the cutting unit includes at least one cutting table configured to move between a slitting station near the film strip cutting mechanism and a blanking station near the conveying mechanism; the cutting unit conveys the picked-up film strip segment to the cutting table located at the slitting station and cuts the film strip segment into several film strips; the conveying mechanism picks up the film strips from the cutting table located at the blanking station.

[0042] By controlling the cutting table to move between the slitting station near the film strip cutting mechanism and the unloading station near the conveying mechanism, the travel distance of the cutting section and the conveying mechanism can be shortened, thereby speeding up the work cycle and improving the slitting efficiency of the film strip segment.

[0043] In some embodiments, a plurality of slitting grooves are arranged side by side at intervals on the cutting table; the cutting section is configured to cut the film strip segment into a plurality of film strips through the plurality of slitting grooves.

[0044] By setting a slitting groove on the cutting table, the cutting part is avoided, ensuring that the cutting part can cut through the film strip segment and that adjacent film strips are completely separated.

[0045] In some embodiments, the receiving section includes two receiving tables configured to alternately move to a slitting station to receive film strip segments transported by the cutting section, and to alternately move a plurality of slit film strips to a feeding station; at least one of the two receiving tables is configured to be able to move up and down in the vertical direction to avoid movement of the other receiving table.

[0046] Two receiving and cutting tables alternately move to the slitting station to receive film strip segments transported by the cutting department, and alternately move several slit film strips to the unloading station, further improving the slitting efficiency of the film strip cutting mechanism for film strip segments. By configuring at least one of the two receiving and cutting tables to be able to move up and down in the vertical direction, the two receiving and cutting tables are staggered in the vertical direction when they meet, preventing collision interference between the two receiving and cutting tables during movement.

[0047] In some embodiments, the first conveying mechanism includes a conveying section, a first aligning section, a second aligning section, and a third aligning section, wherein: the conveying section is configured to convey at least one solar cell to a lamination station, and the conveying section is further provided with a first aligning station and a second aligning station located in front of the lamination station and arranged sequentially along the conveying direction of the conveying section; the first aligning section is located on a first side of the conveying section at the first aligning station, and the first aligning section is configured to drive the solar cell at the first aligning station to move along a conveying direction perpendicular to the conveying section to align it from the first side. The cells at the first straightening station are straightened; a second straightening unit is provided on the second side of the conveying unit at the second straightening station, and the second straightening unit is configured to drive the cells at the second straightening station to move along a conveying direction perpendicular to the conveying unit, so as to straighten the cells at the second straightening station from the second side; a third straightening unit is provided on both sides of the conveying unit at the lamination station, and the third straightening unit is configured to drive the cells at the lamination station to move along a conveying direction parallel to the conveying unit, so as to straighten the cells at the lamination station from the front or the rear.

[0048] The first straightening section straightens the solar cells from the first side of the conveying section, and then the second straightening section straightens them from the second side of the conveying section. This ensures that the two side edges of the solar cells are parallel to the conveying direction of the conveying section, and that the centerline of the solar cells is aligned with the centerline of the conveying section. This single-sided straightening method ensures the straightening effect while avoiding damage to the solar cells. The third straightening section drives the solar cells at the lamination station to be straightened along a conveying direction parallel to the conveying section, ensuring that the front and rear edges of the solar cells are perpendicular to the conveying direction of the conveying section.

[0049] In some embodiments, the first straightening section includes a fourth translation drive module, a first straightening frame, and a first straightening component, wherein: the first straightening frame is connected to a movable part of the fourth translation drive module, the first straightening component is disposed on the first straightening frame, and the first straightening component includes a first straightening surface extending along the conveying direction of the conveying section, and the fourth translation drive module is configured to drive the first straightening frame to translate along a conveying direction perpendicular to the conveying section, so as to drive the first straightening surface of the first straightening component to push the battery cell of the first straightening station from the first side to straighten it;

[0050] The second alignment section includes a fifth translation drive module, a second alignment frame, and a plurality of second alignment components, wherein: the second alignment frame is connected to the movable part of the fifth translation drive module, the second alignment components are disposed on the second alignment frame, and the second alignment components include a second alignment surface extending along the conveying direction of the conveying section, the fifth translation drive module is configured to drive the second alignment frame to translate perpendicular to the conveying direction of the conveying section, so as to drive the second alignment surface of the second alignment component to push the battery cells of the second alignment station from the second side to align them.

[0051] When the fourth translation drive module drives the first alignment frame to move toward the battery cell located at the first alignment station, the first alignment component cooperates by pushing one side of the battery cell, thereby making that side parallel to the conveying direction of the conveying unit, and making the centerline of the battery cell located on the second side of the centerline of the conveying unit. When the fifth translation drive module drives the second alignment frame to move toward the battery cell located at the second alignment station, the second alignment component cooperates by pushing the other side of the battery cell, thereby making the other side parallel to the conveying direction of the conveying unit, and making the centerline of the battery cell aligned with the centerline of the conveying unit.

[0052] In some embodiments, the third alignment section includes a sixth translation drive module, a second lifting drive module, a third lifting drive module, a third alignment frame, a fourth alignment frame, a plurality of third alignment components, and a plurality of fourth alignment components, wherein: the sixth translation drive module is located below the conveying section; the second lifting drive module is connected to the movable part of the sixth translation drive module; the third alignment frame is connected to the movable part of the second lifting drive module and located on the first side of the conveying section at the lamination station; a plurality of third alignment components are spaced apart on the third alignment frame, the spacing between two adjacent third alignment components being greater than the width of the solar cell along the conveying direction of the conveying section; the third lifting drive module is connected to the movable part of the sixth translation drive module, and the fourth alignment components... The entire frame is connected to the movable part of the third lifting drive module and located on the second side of the conveying section at the lamination station. Several fourth alignment components are spaced apart on the fourth alignment frame and correspond one-to-one with the third alignment components. The line connecting the fourth alignment components and the third alignment components is perpendicular to the conveying direction of the conveying section. The second lifting drive module and the third lifting drive module are configured to drive the third alignment frame and the fourth alignment frame to rise synchronously, so that the fourth alignment components and the corresponding third alignment components extend to the front or rear side of the solar cell at the lamination station. The sixth translation drive module is configured to drive the third alignment frame and the fourth alignment frame to translate along the conveying direction of the conveying section, so as to drive the fourth alignment components and the corresponding third alignment components to push the solar cell from the front or rear side for alignment.

[0053] By configuring the third straightening section, the third straightening section can straighten the solar cells located at the lamination station from both the front and rear sides, so that the front and rear edges of the solar cells are perpendicular to the conveying direction of the conveying section.

[0054] In addition, the third alignment section can also perform obstacle avoidance of the solar cells, so that the solar cells can be smoothly transported to the lamination station, and the laminated solar cells can be smoothly transported out of the lamination station.

[0055] In some embodiments, a heating assembly is provided in the conveying section to heat the battery cells so that the film strips stacked on the edges of the battery cells adhere to the battery cells.

[0056] By installing a heating component inside the conveying section, the conveying section can preheat the solar cells located thereon, thereby causing the film strips stacked on the edges of the solar cells to adhere to the solar cells and preventing the film strips from detaching from the solar cells.

[0057] In some embodiments, the cell stacking apparatus further includes a second conveying mechanism, and the conveying mechanism is further configured to convey the cell at the stacking station onto the second conveying mechanism; the second conveying mechanism is configured to convey the cell to a subsequent station.

[0058] By setting up a second conveying mechanism, the battery cells can be automatically conveyed to the subsequent workstation.

[0059] In some embodiments, a flipping station is provided on the conveying path of the second conveying mechanism; a flipping part is provided at the flipping station, and the flipping part is configured to flip the battery cell conveyed to the flipping station.

[0060] In some stringing processes, when laying and stringing solar cells, the surface of the cells with the film strips should face down. Therefore, when transporting the prepared solar cells to the subsequent stringing station, the solar cells need to be flipped. By setting a flipping station on the conveying path of the second conveying mechanism and installing a flipping part at the flipping station, the second conveying mechanism can automatically flip the solar cells during the conveying process.

[0061] In some embodiments, the slitting mechanism, the first conveying mechanism, and the second conveying mechanism are spaced apart along a third direction, and the first conveying mechanism is located between the slitting mechanism and the second conveying mechanism; the transport mechanism includes a translation drive unit, a first transport unit, and a second transport unit, wherein the first transport unit and the second transport unit are spaced apart on the movable part of the translation drive unit along a third direction; the translation drive unit is configured to synchronously drive the first transport unit and the second transport unit to translate along a third direction, so as to drive the second transport unit to transport at least one battery cell located at the lamination station to the second conveying mechanism, and to drive the first transport unit to transport at least one film strip located on the slitting mechanism to the battery cell located at the lamination station one by one.

[0062] By arranging the slitting mechanism, the first conveying mechanism, and the second conveying mechanism, and by setting up the transport mechanism, it is possible to achieve the following: while transporting the battery unit located at the lamination station to the second conveying mechanism, the transport mechanism can simultaneously transport the film strip located on the slitting mechanism to the battery cell located at the lamination station.

[0063] In some embodiments, the output end of the first conveying mechanism is provided with a first waste box; the battery cell stacking device further includes a first vision inspection mechanism disposed above the stacking station, the first vision inspection mechanism being configured to inspect the battery cells located at the stacking station; the transport mechanism is configured to transport the battery cells that have been inspected and confirmed to be qualified to the second conveying mechanism; the first waste box is used to receive the battery cells that have been inspected and confirmed to be unqualified.

[0064] This ensures that only qualified battery cells are supplied to the subsequent stringing station, thereby guaranteeing the stringing quality of the battery strings.

[0065] In some embodiments, the cell stacking apparatus further includes a second vision inspection mechanism disposed above the input end of the first conveying mechanism, the second vision inspection mechanism being configured to inspect the cells located at the input end of the first conveying mechanism; a transport mechanism being configured to stack picked-up film strips onto the edge of a qualified cell located at the stacking station; and a first waste box being used to receive unqualified cells.

[0066] The conveying mechanism only places the membrane strips onto the qualified battery cells, thus ensuring the acquisition of qualified battery cells. Qualified battery cells are then conveyed further by the first conveying mechanism until they fall into the first waste bin.

[0067] In some embodiments, a second waste box is provided below the transport path of the transport mechanism; the cell stacking device further includes a third vision inspection mechanism disposed above the slitting mechanism, the third vision inspection mechanism being configured to inspect the film strips obtained by slitting; the transport mechanism is configured to stack the film strips that have passed inspection onto the cells located at the stacking station, and to place the film strips that have failed inspection into the second waste box; or, the transport mechanism is configured to transport all the film strips one by one to the cells located at the stacking station when all the film strips cut from the film strip have passed inspection; and to place all the film strips into the second waste box when at least one of the film strips cut from the film strip has failed inspection.

[0068] Only membrane strips that have passed inspection and are deemed qualified can be transported to the lamination station for lamination, thereby ensuring the acquisition of qualified battery cells. Attached Figure Description

[0069] Figure 1 This is a schematic diagram of a battery string with a membrane strip;

[0070] Figure 2 This is a schematic diagram of the structure of the battery cell stacking device in the embodiments of this application;

[0071] Figure 3 This is a schematic diagram of the structure of the film tape feeding mechanism and the film tape cutting mechanism in the embodiments of this application;

[0072] Figure 4 This is a schematic diagram of the membrane tape feeding mechanism in the embodiments of this application;

[0073] Figure 5 This is a schematic diagram of the film strip cutting mechanism in the embodiments of this application;

[0074] Figure 6 This is a schematic diagram of the clamping and cutting part in an embodiment of this application from one view.

[0075] Figure 7 This is a schematic diagram of the structure of some components of the clamping and cutting part in the embodiments of this application;

[0076] Figure 8 This is a schematic diagram of the pressing and cutting part in an embodiment of this application from another perspective;

[0077] Figure 9 This is a schematic diagram of the gripping component in the embodiments of this application;

[0078] Figure 10 This is a schematic diagram of the film strip cutting mechanism in the embodiments of this application;

[0079] Figure 11 This is a schematic diagram of the structure of some components of the cutting part in the embodiments of this application from one view.

[0080] Figure 12 This is a schematic diagram of the structure of some components of the cutting part in an embodiment of this application from another perspective;

[0081] Figure 13 This is a schematic diagram of the structure of the shearing portion in an embodiment of this application from one viewpoint.

[0082] Figure 14 This is a schematic diagram of the structure of the shearing portion in an embodiment of this application from another perspective;

[0083] Figure 15 This is a schematic diagram of the structure of some components of the shearing part in the embodiments of this application from one view.

[0084] Figure 16 This is a schematic diagram of the structure of some components of the shearing part in an embodiment of this application from another perspective;

[0085] Figure 17 This is a schematic diagram of the structure of the cutting platform in the embodiments of this application;

[0086] Figure 18 This is a schematic diagram of the transport mechanism in the embodiments of this application;

[0087] Figure 19 This is a schematic diagram showing the relative positions of the handling mechanism, the cutting mechanism, the first conveying mechanism, and the second conveying mechanism in the embodiments of this application;

[0088] Figure 20 This is a schematic diagram of the structure of the first conveying mechanism in the embodiments of this application;

[0089] Figure 21 This is a schematic diagram of the structure of the first regularization part in an embodiment of this application;

[0090] Figure 22This is a schematic diagram of the structure of the second regularization part in an embodiment of this application;

[0091] Figure 23 This is a schematic diagram of the structure of the third regularization part in the embodiments of this application;

[0092] Figure 24 This is a schematic diagram of the solar cell straightening process performed by the third straightening unit in an embodiment of this application.

[0093] Figure 25 This is a schematic diagram of the conditioning process of the battery cell by the first conditioning section and the second conditioning section in the embodiments of this application.

[0094] Figures 1 to 25 Includes:

[0095] Membrane tape feeding mechanism 1:

[0096] First mounting bracket 11;

[0097] Second mounting bracket 12;

[0098] First translation drive module 13;

[0099] Feed roller 14;

[0100] Rotary drive module 15;

[0101] Guide roller 16;

[0102] Slitting mechanism 2:

[0103] Membrane tape cutting mechanism 21: pressing and cutting section 211, bearing platform 212, traction section 213, detection section

[0104] 214. Base 2111. Second translation drive module 2112. Third mounting bracket 2113. First mounting bracket 21131. Second mounting bracket 21132. Eighth lifting drive module 21133. First clamping assembly 2114. Cutting assembly 2115. Second clamping assembly 2116. Ninth translation drive module 2117. Third linear guide pair 2118. Seventh translation drive module 2131. Fourth mounting bracket 2133. Fifth mounting bracket 21 34. Fourth lifting drive module 2135. Clamping assembly 2136. Fifth lifting drive module 2151. First pressure plate 2152. Second pressure plate 2153. Sixth lifting drive module 2161. Third pressure plate 2163. Eighth translation drive module 2171. Cutting blade 2172. Second linear guide pair 2173. Sixth mounting bracket 2181. Support plate 2182. Clamp 2183. Seventh lifting drive module 2184. Fourth pressure plate 2185;

[0105] Membrane strip cutting mechanism 22: cutting section 221, cutting receiving section 222, moving module 2211, fourth mounting frame 2212, adsorption plate 2213, slitting assembly 2214, third translation drive module 2215, first lifting drive module 2216, knife holder 2217, cutting knife 2218, slitting seam 2219, cutting table 2221, slitting groove 2222, base 2223, first bracket 2224, first sliding seat 2225, track plate 2226, second bracket 2227, second sliding seat 2228, telescopic guide rod 2229, first drive module 2231, second drive module 2232, track groove 2233, limit wheel 2234;

[0106] First conveying mechanism 3:

[0107] Conveying section 31;

[0108] First alignment section 32: Fourth translation drive module 321, first alignment frame 322, first alignment component 323;

[0109] Second alignment section 33: Fifth translation drive module 331, second alignment frame 332, second alignment component 333;

[0110] Third alignment section 34: Sixth translation drive module 341, second lifting drive module 342, third lifting drive module 343, third alignment frame 344, fourth alignment frame 345, third alignment component 346, fourth alignment component 347;

[0111] Edge heating plate 35;

[0112] Handling mechanism 4:

[0113] Translation drive unit 41;

[0114] First Transport Department 42;

[0115] Second Transport Department 43;

[0116] Second conveying mechanism 5:

[0117] Flip section 51;

[0118] First waste box 6;

[0119] First Vision Inspection Agency 7;

[0120] Third vision inspection agency 8. Detailed Implementation

[0121] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0122] As described in the background section, the conventional method for fabricating battery strings with a membrane strip between adjacent cells involves first welding the cells to a ribbon assembly to form a battery string, and then inserting the membrane strip into the spaces between the cells. Since the cells and ribbon are already welded, one of the adjacent cells needs to be lifted to create an insertion gap before the membrane strip can be inserted. However, lifting the cell can easily cause microcracks or fragmentation, affecting the string quality.

[0123] To address the aforementioned issues, this application provides a cell lamination device that can attach film strips to cell sheets to obtain a cell unit composed of cell sheets and film strips. In the subsequent cell stringing process, the cell units and solder ribbons are laid out according to a predetermined stringing rule, ensuring that the film strips are positioned at their corresponding cell locations. This eliminates the need for lifting the cell sheets to insert the film during subsequent stringing, avoiding the risk of microcracks or fragmentation of the cell sheets due to the insertion process, and ensuring the quality of the cell stringing.

[0124] like Figure 2 As shown, the solar cell stacking apparatus of this application includes a film tape feeding mechanism 1, a slitting mechanism 2, a first conveying mechanism 3, and a transport mechanism 4, wherein:

[0125] The film tape feeding mechanism 1 is configured to install the film tape roll and drive the film tape roll to rotate to release the film tape.

[0126] The slitting mechanism 2 is configured to slit the film belt released by the film belt feeding mechanism 1 to obtain several film strips.

[0127] The first conveying mechanism 3 is configured to convey at least one solar cell 100 to the lamination station each time.

[0128] The conveying mechanism 4 is configured to pick up at least one film strip from the slitting mechanism 2 each time, and to stack the picked-up film strips one by one onto the edge of the battery cell 100 located at the stacking station to obtain at least one battery cell.

[0129] The battery cell stacking apparatus of this application first cuts the film strip released from the film roll into film strips by the slitting mechanism 2. Then, through the cooperation of the first conveying mechanism 3 and the handling mechanism 4, the film strips are attached to the battery cell 100, thereby obtaining a battery cell composed of the battery cell 100 and the film strips.

[0130] In this way, during the subsequent battery stringing process, the battery cells and solder ribbons are laid out in a string according to the predetermined stringing rules, so that the membrane strips can all enter the corresponding inter-cell positions.

[0131] The cell stacking device in this application eliminates the need to lift the cells for inserting the film during the subsequent stringing process, thereby avoiding the risk of microcracks or fragments in the cells caused by the film insertion operation and ensuring the quality of the stringed cells.

[0132] In practical applications, the slitting mechanism 2 can first cut the unloaded film strip from the film roll into film strip segments, and then cut the film strip segments into film strips. Alternatively, the slitting mechanism 2 can directly cut the unloaded film strip from the film roll into film strips.

[0133] like Figure 2 As shown, optionally, the slitting mechanism 2 includes a film strip cutting mechanism 21 and a film strip cutting mechanism 22, wherein: the film strip cutting mechanism 21 is configured to cut the film strip released from the film strip roll to obtain film strip segments of predetermined length. The film strip cutting mechanism 22 is configured to obtain film strip segments from the film strip cutting mechanism 21 and to cut the film strip segments into a plurality of film strips.

[0134] By configuring the slitting mechanism 2 as a film strip cutting mechanism 21 and a film strip cutting mechanism 22, the film strip cutting mechanism 22 can simultaneously cut the film strip currently obtained from the film strip cutting mechanism 21 into several film strips while the film strip cutting mechanism 21 can simultaneously cut the film strip released from the film roll to obtain the next film strip segment. That is, the film strip cutting mechanism 21 and the film strip cutting mechanism 22 can simultaneously perform film strip cutting and film strip slitting operations, thereby speeding up the work cycle and improving production efficiency.

[0135] like Figure 3 As shown, optionally, the film tape cutting mechanism 21 includes a pressing and cutting part 211, a support table 212 and a traction part 213, wherein the pressing and cutting part 211 is located between the film tape feeding mechanism 1 and the support table 212, and the film tape released from the film tape roll is clamped by the pressing and cutting part 211.

[0136] The optional working process of the membrane tape cutting mechanism 21 is as follows:

[0137] The traction unit 213 first clamps the free end of the film strip from the clamping and cutting unit 211, and then the clamping and cutting unit 211 releases the clamped film strip.

[0138] Next, the traction unit 213 pulls the clamped membrane strip along a first direction (e.g., the X direction) onto the support platform 212. Subsequently, the clamping and cutting unit 211 clamps the membrane strip again and cuts it to obtain a membrane strip segment. At the same time, the support platform 212 holds the membrane strip segment.

[0139] As can be seen, because the free end of the film strip released from the film roll is pressed and fixed on the pressing and cutting part 211, the traction part 213 can always pick up the free end of the film strip from the pressing and cutting part 211. The pressing and cutting part 211 presses the film strip when cutting it, thereby ensuring the cutting effect of the film strip, and also ensuring that the new free end of the film strip after cutting is pressed and fixed on the pressing and cutting part 211.

[0140] Furthermore, since the support platform 212 can hold the membrane strip segment, it prevents the membrane strip segment from shifting or slipping, ensuring that the conveying mechanism 4 can smoothly pick up the membrane strip segment from the support platform 212. Optionally, the support platform 212 has adsorption holes on its surface, and a vacuum channel is provided inside the support platform 212. The adsorption holes and the vacuum channel are connected, and the vacuum channel is connected to a vacuum pump. When the vacuum pump is running, it can generate an adsorption force at the adsorption holes, and the support platform 212 adsorbs the membrane strip segment through the adsorption holes. Alternatively, a vacuum generator or the like can be used to generate an adsorption force at the adsorption holes 31.

[0141] As is known to those skilled in the art, due to factors such as vibration of the film tape feeding mechanism 1 and traction error of the traction part 213, the film tape pulled into the pressing and cutting part 211 is prone to positional displacement in the second direction (perpendicular to the first direction, for example, the second direction is the Y direction), which ultimately leads to the tilting of the cut edge of the film tape, making it difficult to obtain qualified film tape segments.

[0142] To address this issue, one possible implementation is that the film tape feeding mechanism 1 is configured to drive the film tape roll to translate along the second direction in order to adjust the position of the film tape roll in the second direction, thereby achieving correction of the film tape entering the pressing and cutting section 211.

[0143] Another optional implementation is that the clamping and cutting part 211 is configured to drive the clamped film strip to translate along the second direction, so as to adjust the position of the film strip in the second direction and realize the correction of the film strip entering the clamping and cutting part 211. Of course, the film strip feeding mechanism 1 and the clamping and cutting part 211 can also be configured to operate simultaneously or sequentially to adjust the position of the film strip in the second direction.

[0144] By controlling the film belt feeding mechanism 1 and / or the pressing and cutting part 211 to translate along the second direction, the position of the film belt in the second direction is corrected, thereby ensuring the position accuracy of the film belt to be cut in the pressing and cutting part 211, and finally obtaining a qualified film belt segment.

[0145] like Figure 3 and Figure 4As shown, optionally, the film tape feeding mechanism 1 includes a first mounting frame 11, a second mounting frame 12, a first translation drive module 13, a feeding roller 14, and a rotary drive module 15, wherein: the second mounting frame 12 is slidably connected to the first mounting frame 11 and is drive-connected to the first translation drive module 13 disposed on the first mounting frame 11. The feeding roller 14 is rotatably connected to the second mounting frame 12 and is drive-connected to the rotary drive module 15 disposed on the second mounting frame 12. The feeding roller 14 is used to mount the film tape roll, and the rotary drive module 15 is configured to drive the feeding roller 14 to rotate, thereby driving the film tape roll to rotate synchronously. The feeding roller 14 may be an air-expanding shaft, which can be inserted into the hollow part inside the film tape roll.

[0146] The first translation drive module 13 is configured to drive the second mounting bracket 12 to slide relative to the first mounting bracket 11 along a second direction (e.g., the Y direction) to adjust the position of the film strip roll in the second direction.

[0147] It can be seen that by setting the film belt feeding mechanism 1, the film belt feeding mechanism 1 can not only drive the film belt roll to rotate, so that the film belt roll can be automatically released from the film belt, but also adjust the position of the film belt roll in the second direction, so as to realize the position correction of the film belt released from the film belt roll in the second direction.

[0148] The first translation drive module 13 can be any existing linear drive module capable of driving the second mounting bracket 12 to slide relative to the first mounting bracket 11 along the second direction, for example... Figure 4 In this design, the first translation drive module 13 includes a first motor, a first belt assembly, and a lead screw and nut mechanism. The second mounting frame 12 is connected to the nut in the lead screw and nut mechanism. The second mounting frame 12 and the first mounting frame 11 are slidably connected by two first linear guide pairs. The length direction of the first linear guide pairs is along a second direction, and the lead screw in the lead screw and nut mechanism is also along the second direction. The first motor drives the lead screw in the lead screw and nut mechanism to rotate through the first belt assembly, thereby driving the second mounting frame 12 to move along the second direction. The first translation drive module 13 can also be an electric cylinder, etc. The rotary drive module 15 can adopt various existing rotary drive modules capable of driving the feeding roller 14 to rotate. For example, the rotary drive module 15 includes a motor, a drive pulley, a synchronous belt, and a driven pulley. The drive pulley is connected to the drive shaft of the motor, the driven pulley is connected to the end of the feeding roller 14, and the synchronous belt is sleeved on the drive pulley and the driven pulley. The motor drives the drive pulley to rotate, thereby driving the feeding roller 14 to rotate via the synchronous belt and the driven pulley.

[0149] like Figure 3 As shown, optionally, the film tape feeding mechanism 1 also includes a number of guide rollers 16 located between the feeding roller 14 and the film tape cutting mechanism 21. The film tape fed out by the feeding roller 14 passes around each guide roller 16 and enters the film tape cutting mechanism 21.

[0150] like Figure 5 As shown, optionally, the traction unit 213 includes a seventh translation drive module 2131, a fourth mounting bracket 2133, a fifth mounting frame 2134, a fourth lifting drive module 2135, and a clamping assembly 2136. The fourth mounting bracket 2133 is connected to the movable part of the seventh translation drive module 2131. The fifth mounting frame 2134 is slidably and vertically connected to the fourth mounting bracket 2133 and connected to the movable part of the fourth lifting drive module 2135 mounted on the fourth mounting bracket 2133. The clamping assembly 2136 is mounted on the fifth mounting frame 2134.

[0151] The seventh translation drive module 2131 is used to drive the clamping assembly 2136 to translate along the first direction, while the fourth lifting drive module 2135 is used to drive the clamping assembly 2136 to lift, thereby driving the clamping assembly 2136 to clamp the free end of the film strip from the pressing and cutting part 211 and to pull the film strip onto the support platform 212.

[0152] Both the seventh translation drive module 2131 and the fourth lifting drive module 2135 can adopt existing linear drive modules with various structures. For example, the seventh translation drive module 2131 can use a second motor and a second belt assembly. The second motor drives the belt in the second belt assembly to rotate. The belt in the second belt assembly extends along a first direction. The fourth mounting bracket 2133 is connected to the belt in the second belt assembly. While the belt in the second belt assembly rotates, it drives the fourth mounting bracket 2133 to move along the first direction. The seventh translation drive module 2131 can also use a motor in conjunction with a lead screw and nut mechanism, etc. The fourth lifting drive module 2135 can use a cylinder.

[0153] like Figure 9 As shown, optionally, the clamping assembly 2136 includes a sixth mounting bracket 2181, a support plate 2182, a seventh lifting drive module 2184, a fourth pressure plate 2185, and a plurality of clamps 2183, wherein: the support plate 2182 is fixedly mounted on the sixth mounting bracket 2181, and the plurality of clamps 2183 are rotatably connected to the sixth mounting bracket 2181. The seventh lifting drive module 2184 is mounted on the sixth mounting bracket 2181, and the fourth pressure plate 2185 is connected to the drive end of the seventh lifting drive module 2184 and is located above the plurality of clamps 2183.

[0154] In the initial state, the clamping ends of several clamps 2183 are elastically pressed against the support plate 2182. When it is necessary to clamp the free end of the membrane strip, the seventh lifting drive module 2184 first drives the fourth pressure plate 2185 to descend. The fourth pressure plate 2185 presses down on the tail ends of several clamps 2183, thereby forming a clamping gap between the clamping ends of several clamps 2183 and the support plate 2182 to accommodate the free end of the membrane strip. After the free end of the membrane strip enters the clamping gap, the seventh lifting drive module 2184 drives the fourth pressure plate 2185 to rise. The fourth pressure plate 2185 disengages from the tail ends of several clamps 2183, and the clamping ends of several clamps 2183 press the free end of the membrane strip against the support plate 2182.

[0155] Of course, the clamping component 2136 can also adopt other existing implementations, as long as it can clamp the free end of the film strip.

[0156] like Figures 6 to 8 As shown, optionally, the clamping and cutting section 211 includes a base 2111, a second translation drive module 2112, a third mounting bracket 2113, a first clamping assembly 2114, and a cutting assembly 2115, wherein: the third mounting bracket 2113 is slidably connected to the base 2111, and the second translation drive module 2112 is disposed on the base 2111 and is drively connected to the third mounting bracket 2113. The first clamping assembly 2114 and the cutting assembly 2115 are disposed on the third mounting bracket 2113, and the film strip passes through the first clamping assembly 2114 and the cutting assembly 2115 in sequence, wherein the first clamping assembly 2114 is configured to clamp the film strip from a first side of the cutting assembly 2115, and the cutting assembly 2115 is configured to cut the clamped film strip to obtain a film strip segment. The second translation drive module 2112 is configured to drive the third mounting bracket 2113 to slide relative to the base 2111 in the second direction to adjust the position of the membrane strip held by the first clamping assembly 2114 in the second direction.

[0157] The optional operating process of the clamping and cutting part 211 is as follows:

[0158] After the membrane strip of the predetermined length is pulled by the traction unit 213 through the first pressing assembly 2114 and the cutting assembly 2115 and enters the support table 212, the first pressing assembly 2114 presses the membrane strip.

[0159] The system determines whether the compressed membrane strip is misaligned. If it is, the second translation drive module 2112 drives the third mounting bracket 2113 to slide relative to the base 2111 along the second direction to correct the position of the membrane strip in the second direction. If the compressed membrane strip is not misaligned, the second translation drive module 2112 does not perform the correction action.

[0160] Subsequently, the cutting component 2115 cuts the membrane strip that is pressed by the first pressing component 2114, thereby obtaining a membrane strip segment located on the support platform 212.

[0161] It can be seen that by setting the pressing and cutting part 211, the pressing and cutting part 211 can not only press and cut the membrane belt to obtain a membrane belt segment, but also drive the pressed membrane belt to translate in the second direction, thereby realizing the position correction of the membrane belt in the second direction.

[0162] The second translation drive module 2112 can be any existing linear drive module capable of driving the third mounting bracket 2113 to slide relative to the base 2111 in the second direction, such as a motor with a lead screw and nut mechanism, or an electric cylinder, etc.

[0163] Continue to refer to Figures 6 to 8 Optionally, the clamping and cutting section 211 further includes a second clamping assembly 2116 disposed on the third mounting bracket 2113, with the cutting assembly 2115 located between the first clamping assembly 2114 and the second clamping assembly 2116. When the first clamping assembly 2114 clamps the film strip from the first side of the cutting assembly 2115, the second clamping assembly 2116 clamps the film strip from the second side of the cutting assembly 2115 to the first end of the support platform 212, the first end of which is the end of the support platform 212 closest to the clamping and cutting section 211. The cutting assembly 2115 cuts the film strip between the first clamping assembly 2114 and the second clamping assembly 2116.

[0164] Since the first clamping assembly 2114 and the second clamping assembly 2116 clamp the film strip from both sides of the cutting assembly 2115, the film strip is in a fully taut state when it is cut by the cutting assembly 2115, thereby making the cut film strip segment form a straight cut and ultimately ensuring that a film strip segment with a straight edge is obtained.

[0165] like Figures 6 to 8 As shown, optionally, the first pressing assembly 2114 includes a fifth lifting drive module 2151, a first pressure plate 2152, and a second pressure plate 2153. The second pressure plate 2153 is fixedly mounted on the third mounting bracket 2113. The fifth lifting drive module 2151 is mounted on the third mounting bracket 2113. The first pressure plate 2152 is connected to the drive end of the fifth lifting drive module 2151 and is located above the second pressure plate 2153. The film strip passes between the first pressure plate 2152 and the second pressure plate 2153. When the fifth lifting drive module 2151 drives the first pressure plate 2152 to descend toward the second pressure plate 2153, the first pressure plate 2152 presses the film strip onto the second pressure plate 2153. When the fifth lifting drive module 2151 drives the first pressure plate 2152 to rise away from the second pressure plate 2153, the first pressure plate 2152 releases the film strip.

[0166] The fifth lifting drive module 2151 can adopt various existing linear drive modules that can drive the first pressure plate 2152 to lift, such as cylinders, motors and lead screw and nut mechanisms.

[0167] Of course, the first pressing component 2114 can also be implemented in other ways, as long as it can press the film strip.

[0168] like Figures 6 to 8 As shown, optionally, the second pressing assembly 2116 includes a sixth lifting drive module 2161 and a third pressure plate 2163. The sixth lifting drive module 2161 is mounted on the third mounting bracket 2113, and the third pressure plate 2163 is connected to a movable part of the sixth lifting drive module 2161. When the sixth lifting drive module 2161 drives the third pressure plate 2163 to descend toward the first end of the support platform 212, the third pressure plate 2163 presses the film strip against the first end of the support platform 212. When the sixth lifting drive module 2161 drives the third pressure plate 2163 to rise away from the first end of the support platform 212, the third pressure plate 2163 releases the film strip. Of course, the second pressing assembly 2116 can adopt other embodiments, as long as it can press the film strip against the first end of the support platform 212.

[0169] The fifth lifting drive module 2151 and the sixth lifting drive module 2161 can adopt various existing linear drive modules, such as cylinders, motors and lead screw and nut mechanisms.

[0170] like Figure 6 As shown, optionally, the cutting assembly 2115 includes an eighth translation drive module 2171 and a cutting blade 2172. The eighth translation drive module 2171 is mounted on the third mounting bracket 2113, and the cutting blade 2172 is connected to a movable part of the eighth translation drive module 2171. The eighth translation drive module 2171 is used to drive the cutting blade 2172 to translate along a second direction to cut the film strip located on the translation path of the cutting blade 2172.

[0171] The eighth translation drive module 2171 can be, for example, a linear drive module of various existing structures such as a belt drive module, as long as it can drive the cutting blade 2172 to translate along the second direction. For example Figure 6 In the middle, the eighth translation drive module 2171 adopts a cylinder. The cylinder body is mounted on the third mounting bracket 2113, the cutting blade 2172 is mounted on the blade holder, the piston rod end of the cylinder is connected to the blade holder, and the blade holder is slidably mounted on the third mounting bracket 2113 through the second linear guide pair 2173. The second linear guide pair 2173 extends along the second direction, and the piston rod of the cylinder extends and retracts to drive the blade holder and the cutting blade 2172 to move along the second direction.

[0172] like Figures 6 to 7As shown, optionally, the third mounting bracket 2113 includes a first mounting bracket 21131, a second mounting bracket 21132, and an eighth lifting drive module 21133, wherein:

[0173] The first mounting bracket 21131 is slidably connected to the base 2111, and the second translation drive module 2112 is drivenly connected to the first mounting bracket 21131.

[0174] The second mounting bracket 21132 is slidably connected to the first mounting bracket 21131. The first clamping component 2114 and the second clamping component 2116 are both mounted on the second mounting bracket 21132, and the cutting component 2115 is mounted on the first mounting bracket 21131.

[0175] The eighth lifting drive module 21133 is mounted on the first mounting bracket 21131 and is used to drive the second mounting bracket 21132 to move up and down between the first high position and the first low position.

[0176] The eighth lifting drive module 21133 is configured to drive the second mounting bracket 21132 down to a first low position to tension the membrane strip to the first end of the support platform 212. The eighth lifting drive module 21133 is also configured to drive the second mounting bracket 21132 up to a first high position, so that the new free end of the membrane strip after cutting is higher than the support platform 212. The eighth lifting drive module 21133 can employ various existing linear drive modules, such as cylinders, motors, or lead screw and nut mechanisms.

[0177] Optionally, the clamping and cutting section 211 further includes a ninth translation drive module 2117. The movable end of the ninth translation drive module 2117 is connected to the base 2111, and the ninth translation drive module 2117 is configured to drive the base 2111 closer to or further away from the first end of the support platform 212. Specifically, the base 2111 is slidably connected to a third linear guide pair 2118 arranged along the first direction, and the third linear guide pair 2118 guides the movement of the base 2111. The ninth translation drive module 2117 can also adopt various existing linear drive modules, such as cylinders, motors, and lead screw and nut mechanisms.

[0178] After the cutting component 2115 cuts the film strip, the sixth lifting drive module 2161 first drives the third pressure plate 2163 to rise, moving the third pressure plate 2163 away from the support platform 212. At the same time, the traction unit 213 releases the film strip segment, and the ninth translation drive module 2117 drives the base 2111 away from the support platform 212. The film strip cutting mechanism 22 removes the film strip segment from the support platform 212. Then, the ninth translation drive module 2117 drives the base 2111 closer to the support platform 212, and the eighth lifting drive module 21133 drives the second mounting bracket 21132 to rise to the first height. The membrane tape is positioned such that its new free end is higher than the support platform 212, allowing the traction unit 213 to pull the membrane tape to its new free end. The traction unit 213 pulls the membrane tape into position, attaching it to the support platform 212. Simultaneously, the eighth lifting drive module 21133 drives the second mounting bracket 21132 to descend to the first low position, tensioning the membrane tape to the first end of the support platform 212. Then, the sixth lifting drive module 2161 drives the third pressure plate 2163 to descend until the third pressure plate 2163 presses the membrane tape firmly onto the first end of the support platform 212. Finally, the cutting assembly 2115 cuts the membrane tape. This cycle is repeated to cut the membrane tape. Figure 3 As shown, optionally, the film tape cutting mechanism 21 further includes a detection unit 214 disposed between the film tape feeding mechanism 1 and the pressing and cutting section 211. The film tape released from the film tape feeding mechanism 1 passes through the detection unit 214 and enters the pressing and cutting section 211. The detection unit 214 is configured to detect the edge of the film tape to determine whether the film tape is skewed. The film tape feeding mechanism 1 is configured to adjust the position of the film tape roll in the second direction to correct the film tape deviation when the detection unit 214 detects a skewed film tape position. Similarly, the pressing and cutting section 211 is also configured to adjust the position of the film tape in the second direction to correct the film tape deviation when the detection unit 214 detects a skewed film tape position.

[0179] As can be seen, by providing a detection unit 214 between the film belt feeding mechanism 1 and the pressing and cutting part 211, the position of the film belt to be entered into the pressing and cutting part 211 in the second direction is detected to determine whether the film belt is skewed, thereby enabling the film belt feeding mechanism 1 and / or the pressing and cutting part 211 to perform a correction operation on the film belt based on the detection result. The detection unit 214 can be, for example, an edge detection sensor.

[0180] like Figure 10 As shown, optionally, the film strip cutting mechanism 22 includes a cutting section 221 and a receiving section 222, wherein: the cutting section 221 is configured to pick up film strip segments from the film strip cutting mechanism 21 and transport the picked-up film strip segments to the receiving section 222 for cutting. The receiving section 222 is configured to cooperate with the cutting section 221 to cut the film strip segments into a plurality of film strips.

[0181] As can be seen, with the cooperation of the cutting part 221 and the receiving part 222, this application does not need to set up an additional conveying mechanism to transport the film strip segment to the film strip cutting mechanism 22. The film strip cutting mechanism 22 can pick up the film strip segment from the film strip cutting mechanism 21 and cut the film strip segment into several film strips, thereby reducing the complexity and cost of the equipment.

[0182] like Figures 10 to 11 As shown, optionally, the cutting section 221 includes a movable module 2211, a fourth mounting bracket 2212, an adsorption plate 2213, and a slitting assembly 2214, wherein: the fourth mounting bracket 2212 is connected to the movable part of the movable module 2211. The adsorption plate 2213 is disposed at the bottom of the fourth mounting bracket 2212, and several slitting seams 2219 extending from top to bottom through the adsorption plate 2213 are arranged side by side at intervals on the adsorption plate 2213. The slitting assembly 2214 is disposed on the fourth mounting bracket 2212 and located above the adsorption plate 2213.

[0183] The moving module 2211 is configured to drive the fourth mounting bracket 2212 and the suction plate 2213 to translate and lift, so as to drive the suction plate 2213 to pick up the film strip segment from the film strip cutting mechanism 21 and transport the picked-up film strip segment to the receiving section 222. The slitting assembly 2214 is configured to slit the film strip segment located on the receiving section 222 through a plurality of slitting slits 2219.

[0184] Optionally, the moving module 2211 includes a translation drive unit and a lifting drive unit. The lifting drive unit is connected to the drive end of the translation drive unit, and the fourth mounting bracket 2212 is connected to the drive end of the lifting drive unit. The translation drive unit is used to drive the fourth mounting bracket 2212 and the adsorption plate 2213 to translate, and the lifting drive unit is used to drive the fourth mounting bracket 2212 and the adsorption plate 2213 to lift. Both the translation drive unit and the lifting drive unit can adopt various existing linear drive modules. For example, the translation drive unit can adopt a motor-driven belt assembly or a lead screw and nut mechanism, and the lifting drive unit can adopt a cylinder, etc.

[0185] like Figure 11As shown, optionally, the slitting assembly 2214 includes a third translation drive module 2215, a first lifting drive module 2216, a blade holder 2217, and a plurality of cutters 2218, wherein: the third translation drive module 2215 is disposed on the fourth mounting bracket 2212, the first lifting drive module 2216 is connected to the movable part of the third translation drive module 2215, the blade holder 2217 is connected to the movable part of the first lifting drive module 2216, and the plurality of cutters 2218 are arranged side by side at intervals on the blade holder 2217 and correspond one-to-one with the slitting slits 2219. The first lifting drive module 2216 is configured to drive the blade holder 2217 to descend, so that the plurality of cutters 2218 pass downward through the corresponding slitting slits 2219 and abut against the film strip segment located on the receiving portion 222. The third translation drive module 2215 is configured to drive the cutter holder 2217 to reciprocate along the extension direction of the slitting slit 2219, so as to drive a number of cutters 2218 to cut the membrane strip into a number of membrane strips.

[0186] The optional operating process of the slitting component 2214 is as follows:

[0187] In the initial state, the blade holder 2217 is in a high position, and each cutter 2218 is located above or inside the corresponding cutting slit 2219.

[0188] Driven by the moving module 2211, the adsorption plate 2213 moves and presses the film strip segment picked up from the film strip cutting mechanism 21 onto the receiving part 222.

[0189] Subsequently, the first lifting drive module 2216 drives the knife holder 2217 to descend to a low position, and each cutter 2218 extends downward through the corresponding slitting slit 2219 and abuts against the membrane strip segment.

[0190] Finally, the third translation drive module 2215 drives the cutter holder 2217 to reciprocate along the extension direction of the slitting slit 2219, thereby cutting the membrane strip into several membrane strips.

[0191] Both the third translation drive module 2215 and the first lifting drive module 2216 can adopt existing linear drive modules of various structures.

[0192] like Figures 13 to 16 As shown, optionally, the cutting section 222 includes at least one cutting table 2221, which is configured to move between a slitting station near the film strip cutting mechanism 21 and a unloading station near the conveying mechanism 4. When the cutting table 2221 moves to the slitting station, the cutting section 221 transports the picked-up film strip segment onto the cutting table 2221 and cuts the film strip segment into several film strips. When the cutting table 2221 moves with several film strips to the unloading station, the conveying mechanism 4 picks up the film strips from the cutting table 2221 and stacks the film strips onto the solar cell 100 located at the stacking station.

[0193] By controlling the cutting table 2221 to move between the slitting station near the film strip cutting mechanism 21 and the unloading station near the conveying mechanism, the travel distance of the cutting section 221 and the conveying mechanism 4 can be shortened, thereby speeding up the work cycle and improving the slitting efficiency of the film strip segment.

[0194] like Figure 17 As shown, optionally, the cutting table 2221 is provided with a number of slitting grooves 2222 arranged side by side at intervals; the cutting part 221 is configured to cut the film strip segment into a number of film strips through the number of slitting grooves 2222.

[0195] By setting a slitting groove 2222 on the receiving and cutting table 2221, the receiving and cutting table 2221 can avoid the cutting part 221, ensuring that the cutting part 221 can cut through the film strip segment, thereby completely separating adjacent film strips.

[0196] like Figures 13 to 16 As shown, optionally, the receiving and cutting section 222 includes two receiving and cutting tables 2221, which are configured to alternately move to the slitting station to receive film strip segments transported by the cutting section 221, and to alternately move a plurality of slit film strips to the unloading station. At least one of the two receiving and cutting tables 2221 is configured to be able to move up and down in the vertical direction to avoid movement of the other receiving and cutting table 2221.

[0197] Two receiving and cutting tables 2221 alternately move to the slitting station to receive film strip segments transported by the cutting unit 221, and alternately move several slit film strips to the unloading station. That is, when one receiving and cutting table 2221 moves to the slitting station to receive the film strip segments transported by the cutting unit 221 and cooperates with the cutting unit 221 to slit the film strip segments into several film strips, the other receiving and cutting table 2221 carries several film strips to the unloading station for the transport mechanism 4 to pick up. This improves the slitting efficiency of the film strip cutting mechanism 22 on the film strip segments, ensuring that the transport mechanism 4 can obtain the film strips in a timely manner.

[0198] Furthermore, since at least one of the two cutting platforms 2221 can move up and down in the vertical direction, the two cutting platforms 2221 are staggered in the vertical direction when they meet, preventing collision interference between the two cutting platforms 2221 during movement.

[0199] Optionally, the receiving part 222 further includes a base 2223, a first bracket 2224, a first sliding seat 2225, a track plate 2226, a second bracket 2227, a second sliding seat 2228, a telescopic guide rod 2229, a first drive module 2231, and a second drive module 2232, wherein:

[0200] A first sliding seat 2225 is slidably connected to a base 2223, and a first bracket 2224 is connected to the first sliding seat 2225. The first of the two cutting tables 2221 is connected to the upper end of the first bracket 2224. A first drive module 2231 is mounted on the base 2223 and is used to drive the first sliding seat 2225 to slide, thereby moving the first cutting table 2221 between the slitting station and the unloading station. The first cutting table 2221 remains at the same height during movement.

[0201] A track plate 2226 is mounted on a base 2223, and a downwardly curved track groove 2233 is provided on the track plate 2226. A second sliding seat 2228 is slidably connected to the base 2223, and a second bracket 2227 is slidably connected to the second sliding seat 2228. The end of the second bracket 2227 is provided with a limiting wheel 2234 located in the track groove 2233. The second cutting table 2221 of the two cutting tables 2221 is connected to the upper end of the second bracket 2227. The upper end of the telescopic guide rod 2229 is connected to the bottom of the second cutting table 2221, and the lower end of the telescopic guide rod 2229 is connected to the base 2223. A second drive module 2232 is mounted on the base 2223 and is used to drive the second sliding seat 2228 to slide, thereby driving the second cutting table 2221 to slide and switch between the slitting station and the unloading station. At the same time, the limiting wheel 2234 on the second cutting platform 2221 slides along the track groove 2233, thereby driving the second cutting platform 2221 to rise and fall, and the telescopic guide rod 2229 adapts to the rise and fall of the second cutting platform 2221.

[0202] Specifically, when the first cutting platform 2221 and the second cutting platform 2221 meet at the middle position of the base 2223, the second cutting platform 2221 descends to a lower position, thereby causing the second cutting platform 2221 to be vertically offset from the first cutting platform 2221.

[0203] Of course, in other implementations, the second cutting platform 2221 can also be driven to rise and fall by setting a lifting drive mechanism so that the second cutting platform 2221 is offset in the vertical direction when it meets the first cutting platform 2221.

[0204] like Figure 20 As shown, optionally, the first conveying mechanism 3 includes a conveying section 31, a first straightening section 32, a second straightening section 33 and a third straightening section 34, wherein: the conveying section 31 is configured to convey at least one battery cell 100 to the lamination station C, and the conveying section 31 is also provided with a front passage located at the lamination station, and a first straightening station A and a second straightening station B are arranged sequentially along the conveying direction of the conveying section 31.

[0205] A first straightening unit 32 is disposed on a first side (e.g., the left side) of the conveying unit 31 at the first straightening station A. The first straightening unit 32 is configured to drive the battery cell 100 at the first straightening station A to move along a conveying direction perpendicular to the conveying unit 31, so as to straighten the battery cell 100 located at the first straightening station A from the first side, such that the center line of the battery cell 100 is located on a second side of the center line of the conveying unit 31. A second straightening unit 33 is disposed on a second side (e.g., the right side) of the conveying unit 31 at the second straightening station B. The second straightening unit 33 is configured to drive the battery cell 100 at the second straightening station B to move along a conveying direction perpendicular to the conveying unit 31, so as to straighten the battery cell 100 located at the second straightening station B from the second side, such that the center line of the battery cell 100 is aligned with the center line of the conveying unit 31.

[0206] like Figure 25 As shown, in one regularization embodiment, the specific regularization process of the first regularization unit 32 and the second regularization unit 33 on the battery cell 100 is as follows:

[0207] Before being transported to the first straightening station A, there is an angle between the center line a of the battery cell 100 and the center line b of the transport section 31, that is, the two side edges (first side edge 101 and second side edge 102) of the battery cell 100 are inclined relative to the transport direction of the transport section 31.

[0208] The conveying unit 31 conveys the battery cell 100 in a step-by-step manner. When the battery cell 100 is conveyed to the first straightening station A, the battery cell 100 is paused. Subsequently, the first straightening unit 32 pushes the straightening battery cell 100 from the first side, so that the center line a of the battery cell 100 is located on the second side of the center line b of the conveying unit 31.

[0209] When the conveying unit 31 continues to convey the battery cell 100 to the second straightening station B, the battery cell 100 is paused. Subsequently, the second straightening unit 33 pushes the straightening battery cell 100 from the second side until the center line a of the battery cell 100 is aligned with the center line b of the conveying unit 31. At the same time, the two side edges of the battery cell 100 are straightened to be parallel to the conveying direction of the conveying unit 31.

[0210] As can be seen, the battery cells are shaped from the first side of the conveying section 31 by the first sizing section 32, and then from the second side of the conveying section 31 by the second sizing section 33. This results in the battery cells having both sides parallel to the conveying direction of the conveying section 31, and the centerline of the battery cell 100 aligned with the centerline of the conveying section 31. Since both the first sizing section 32 and the second sizing section 33 employ a single-sided sizing method, damage to the battery cells can be avoided.

[0211] The third straightening unit 34 is provided on both sides of the conveying unit 31 at the lamination station C. The third straightening unit 34 is configured to drive the solar cell 100 at the lamination station C to move along a conveying direction parallel to the conveying unit 31, so as to straighten the solar cell 100 located at the lamination station C from the front or the rear.

[0212] The third straightening unit 34 drives the battery cell 100 at the lamination station C to straighten the battery cell 100 along the conveying direction parallel to the conveying unit 31. This ensures that the front and rear edges of the battery cell 100 are perpendicular to the conveying direction of the conveying unit 31, and that the battery cell 100 is accurately adjusted to the target position within the lamination station C, ensuring that the transport mechanism 4 can smoothly pick up the battery cell 100.

[0213] like Figure 21 As shown, optionally, the first straightening section 32 includes a fourth translation drive module 321, a first straightening frame 322, and a first straightening component 323, wherein: the first straightening frame 322 is connected to the movable part of the fourth translation drive module 321, the first straightening component 323 is disposed on the first straightening frame 322, and the first straightening component 323 includes a first straightening surface extending along the conveying direction of the conveying section 31, the fourth translation drive module 321 is configured to drive the first straightening frame 322 to translate along the conveying direction perpendicular to the conveying section 31, so as to drive the first straightening surface of the first straightening component 323 to push the battery cell 100 of the first straightening station A from the first side to straighten it. Specifically, when the fourth translation drive module 321 drives the first straightening frame 322 to move toward the battery cell 100 located at the first straightening station A, the first straightening surface of the first straightening member 323 cooperates to push one side of the battery cell 100 until the center line of the battery cell 100 is located on the second side of the center line of the conveying section 31.

[0214] For example, the first specification component 323 can be... Figure 21 The multiple straightening rollers shown can also be straightening blocks, straightening rods, etc. When the first straightening component 323 is multiple straightening rollers, the multiple straightening rollers are arranged at intervals along the conveying direction of the conveying unit 31, the center lines of the straightening rollers are arranged vertically, and the planes that are tangent to the outer peripheral surfaces of all the straightening rollers simultaneously form the first straightening surface, and the first straightening surface faces the conveying unit 31. When the first straightening component 323 is a straightening block or a straightening rod, the first straightening surface is the side of the straightening block or straightening rod facing the conveying unit 31. In order to improve the straightening efficiency of the first straightening unit 32 for the battery cell 100 and reduce the cost of the first straightening unit 32, the fourth translation drive module 321 can optionally be a cylinder drive module.

[0215] like Figure 22As shown, optionally, the second alignment section 33 includes a fifth translation drive module 331, a second alignment frame 332, and a second alignment component 333. The second alignment frame 332 is connected to a movable component of the fifth translation drive module 331. The second alignment component 333 is disposed on the second alignment frame 332 and includes a second alignment surface extending along the conveying direction of the conveying section 31. The fifth translation drive module 331 is configured to drive the second alignment frame 332 to translate perpendicularly to the conveying direction of the conveying section 31, thereby causing the second alignment surface of the second alignment component 333 to push the battery cell 100 at the second alignment station from the second side for alignment. Specifically, when the fifth translation drive module 331 drives the second alignment frame 332 to move toward the battery cell 100 located at the second alignment station, the second alignment surface of the second alignment component 333 cooperates to push the other side of the battery cell 100 until the centerline of the battery cell 100 is aligned with the centerline of the conveying section 31.

[0216] Similar to the first alignment part 323, the second alignment part 333 can also be... Figure 22 The straightening rollers shown can also be straightening blocks, straightening rods, etc. Since the centerline of the battery cell 100 needs to be aligned with the centerline of the conveying section 31 after straightening by the second straightening section 33, the drive stroke of the fifth translation drive module 331 on the second straightening frame 332 needs to be precise. To ensure precise drive of the second straightening frame 332 by the fifth translation drive module 331, optionally, the fifth translation drive module 331 can be a lead screw drive module consisting of a servo motor, a lead screw, and a lead screw nut.

[0217] like Figures 23 to 24 As shown, optionally, the third alignment unit 34 includes a sixth translation drive module 341, a second lifting drive module 342, a third lifting drive module 343, a third alignment frame 344, a fourth alignment frame 345, a plurality of third alignment components 346, and a plurality of fourth alignment components 347, wherein:

[0218] The sixth translation drive module 341 is located below the conveying section 31. The second lifting drive module 342 is connected to the movable part of the sixth translation drive module 341. The third alignment frame 344 is connected to the movable part of the second lifting drive module 342 and is located on the first side of the conveying section 31 at the lamination station. A plurality of third alignment components 346 are spaced apart on the third alignment frame 344, and the distance between two adjacent third alignment components 346 is greater than the width of the solar cell along the conveying direction of the conveying section 31. The third lifting drive module 343 is connected to the movable part of the sixth translation drive module 341. The fourth alignment frame 345 is connected to the movable part of the third lifting drive module 343 and is located on the second side of the conveying section 31 at the lamination station. A plurality of fourth alignment components 347 are spaced apart on the fourth alignment frame 345 and correspond one-to-one with the third alignment components 346. The line connecting the fourth alignment components 347 and the third alignment components 346 is perpendicular to the conveying direction of the conveying section 31.

[0219] The optional conditioning process for the third conditioning section 34 pairs of solar cells 100 is as follows:

[0220] In the initial state, all third guide components 346 and all fourth guide components 347 are in the low position for avoidance.

[0221] Waiting for several (for example) Figure 24 When the three solar cells 100 are transported to the lamination station C, the second lifting drive module 342 and the third lifting drive module 343 drive the third alignment frame 344 and the fourth alignment frame 345 to rise synchronously, so that the fourth alignment component 347 and the corresponding third alignment component 346 extend to the front or rear side of the solar cell 100 at the lamination station.

[0222] Subsequently, the sixth translation drive module 341 drives the third alignment frame 344 and the fourth alignment frame 345 to translate along the conveying direction of the conveying section 31, so as to drive the fourth alignment component 347 and the corresponding third alignment component 346 to push the battery cell 100 from the front or rear side for alignment, thereby making the front and rear edges of the battery cell 100 perpendicular to the conveying direction of the conveying section 31. In addition, it ensures that the battery cell 100 is accurately adjusted to the target position within the lamination station.

[0223] The third guide component 346 and the fourth guide component 347 can be, for example, a guide rod or a guide roller.

[0224] Optionally, a heating component is provided in the conveying section 31. The heating component can preheat the battery cell 100 located on the conveying section 31, so that the film strip stacked on the battery cell 100 is adhered to the battery cell 100 and the film strip is prevented from detaching from the battery cell 100.

[0225] like Figure 20As shown, edge heating plates 35 can also be provided on both sides of the conveying section 31 at the lamination station C. When the battery cell 100 is conveyed to the lamination station C, the edge heating plates 35 heat the two sides of the battery cell 100, thereby causing the film strips stacked on the battery cell 100 to adhere to the battery cell 100.

[0226] like Figure 2 and Figure 19 As shown, optionally, the battery cell stacking apparatus in this embodiment further includes a second conveying mechanism 5, and the transport mechanism 4 is further configured to transport the battery cells located at the stacking station onto the second conveying mechanism 5. The second conveying mechanism 5 is configured to transport the battery cells to a subsequent processing station.

[0227] As is known to those skilled in the art, in some stringing processes, when laying and stringing the solar cells 100, the surface of the solar cells 100 with the film strips is facing down. Therefore, when the prepared solar cells are transported to the subsequent stringing station, it is necessary to flip the solar cells over.

[0228] To enable automatic flipping of the battery cells, optionally, a flipping station is provided on the conveying path of the second conveying mechanism 5. A flipping part 51 is provided at the flipping station, which is configured to flip the battery cells conveyed to the flipping station so that the surface of the battery cells 100 with the film strips stacked is facing down.

[0229] like Figures 18 to 19 As shown, optionally, the slitting mechanism 2, the first conveying mechanism 3, and the second conveying mechanism 5 are spaced apart along a third direction, with the first conveying mechanism 3 located between the slitting mechanism 2 and the second conveying mechanism 5. The transport mechanism 4 includes a translation drive unit 41, a first transport unit 42, and a second transport unit 43, wherein the first transport unit 42 and the second transport unit 43 are spaced apart on the movable part of the translation drive unit 41 along a third direction; the translation drive unit 41 is configured to synchronously drive the first transport unit 42 and the second transport unit 43 to translate along a third direction, so as to drive the second transport unit 43 to transport at least one battery cell located at the lamination station to the second conveying mechanism 5, and to drive the first transport unit 42 to transport at least one film strip located on the slitting mechanism 2 to the battery cell 100 located at the lamination station.

[0230] It can be seen that by arranging the slitting mechanism 2, the first conveying mechanism 3 and the second conveying mechanism 5, and by setting the transport mechanism 4, it can be achieved that the transport mechanism 4 transports the battery unit located at the lamination station to the second conveying mechanism 5, and at the same time transports the film strip located on the slitting mechanism 2 to the newly delivered battery cell 100 located at the lamination station.

[0231] like Figure 2 and Figure 20As shown, optionally, a first waste box 6 is provided at the output end of the first conveying mechanism 3. The battery cell stacking apparatus in this embodiment further includes a first visual inspection mechanism 7 disposed above the stacking station, configured to inspect the battery cells located at the stacking station C. The transport mechanism 4 is configured to transport the inspected and confirmed qualified battery cells to the second conveying mechanism 5, while the first waste box 6 is used to receive the inspected and confirmed unqualified battery cells.

[0232] In other words, only battery cells that pass inspection are transported to the second conveyor mechanism 5 and then conveyed by the second conveyor mechanism 5 to the subsequent stringing station, thereby ensuring the stringing quality of the battery cells. Battery cells that fail inspection are continued to be conveyed by the first conveyor mechanism 3 until they fall into the first waste box 6.

[0233] The first visual inspection unit 7 can be, for example, a camera connected to a host computer or PLC. The camera is used to take pictures of the battery unit to obtain an image of the battery unit. The host computer or PLC performs image analysis on the image of the battery unit to determine whether the battery unit is qualified.

[0234] Optionally, the battery cell stacking apparatus in this embodiment further includes a second visual inspection mechanism disposed above the input end of the first conveying mechanism 3. The second visual inspection mechanism is configured to inspect the battery cells 100 located at the input end of the first conveying mechanism 3. The conveying mechanism 4 is configured to stack the picked-up film strips onto the edge of the inspected and confirmed qualified battery cells 100 located at the stacking station C. The first waste box 6 is also used to receive the inspected and confirmed unqualified battery cells 100.

[0235] In other words, the conveying mechanism 4 only stacks the membrane strips onto the qualified battery cells 100, thereby ensuring that qualified battery cells are obtained. The unqualified battery cells 100 are then conveyed backward by the first conveying mechanism 3 until they fall into the first waste box 6.

[0236] Similarly, the second visual inspection mechanism can be, for example, a camera connected to a host computer or PLC. The camera is used to take pictures of the battery cell 100 to obtain an image of the battery cell 100. The host computer or PLC performs image analysis on the image of the battery cell 100 to determine whether the battery cell 100 is qualified.

[0237] like Figure 2As shown, optionally, a second waste box is also provided below the transport path of the transport mechanism 4. The battery cell stacking device in this embodiment of the application also includes a third vision inspection mechanism 8 disposed above the slitting mechanism 2. The third vision inspection mechanism 8 is configured to inspect the film strips obtained by slitting on the slitting mechanism 2. The transport mechanism 4 is configured to stack the film strips that have passed the inspection onto the battery cell 100 located at the stacking station C, and to place the film strips that have failed the inspection into the second waste box. Alternatively, the transport mechanism 4 is configured to transport all the film strips one by one to the battery cell 100 located at the stacking station when all the film strips cut from the film strip have passed the inspection; and to place all the film strips into the second waste box when at least one of the film strips cut from the film strip has failed the inspection.

[0238] This setup ensures that only qualified membrane strips can be transported to the lamination station for lamination, thereby ensuring the acquisition of qualified battery cells.

[0239] Similarly, the third vision inspection unit 8 can be, for example, a camera connected to a host computer or PLC. The camera is used to take pictures of the membrane strip to obtain an image of the membrane strip. The host computer or PLC performs image analysis on the image of the membrane strip to determine whether the membrane strip is qualified.

[0240] The foregoing has provided a sufficiently detailed and specific description of this application. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of this application should fall within the protection scope of this application. The scope of protection claimed in this application is defined by the claims, and not by the above descriptions in the embodiments.

Claims

1. A battery sheet stacking film device, characterized by, The battery cell stacking device includes a film feeding mechanism, a slitting mechanism, a first conveying mechanism, and a handling mechanism, wherein: The film tape feeding mechanism is configured to install the film tape roll and drive the film tape roll to rotate to release the film tape; The slitting mechanism is configured to slit the film belt released by the film belt feeding mechanism to obtain a number of film strips; The first conveying mechanism is configured to convey at least one solar cell to the lamination station each time; The conveying mechanism is configured to pick up at least one film strip from the slitting mechanism each time, and to stack the picked-up film strips one by one onto the edge of the battery cell located at the stacking station to obtain at least one battery cell.

2. The cell sheet laminating apparatus according to claim 1, wherein The slitting mechanism includes a film strip cutting mechanism and a film belt cutting mechanism, wherein: The film strip cutting mechanism is configured to cut the film strip released from the film strip roll to obtain film strip segments of a predetermined length. The membrane strip cutting mechanism is configured to obtain the membrane strip segment from the membrane tape cutting mechanism and to cut the membrane strip segment into several membrane strips.

3. The cell sheet laminating apparatus according to claim 2, wherein The membrane tape cutting mechanism includes a pressing and cutting section, a support platform, and a traction section, wherein: The clamping and cutting part is located between the film belt feeding mechanism and the support platform. The film belt released from the film belt roll is clamped by the clamping and cutting part. The traction part is configured to clamp the free end of the film belt from the clamping and cutting part. The clamping and cutting part releases the clamped film belt. The traction part pulls the clamped film belt along the first direction to the support platform. The pressing and cutting section is configured to press the film strip and cut the film strip to obtain the film strip segment; The support platform is configured to adsorb the membrane segment.

4. The cell sheet laminating apparatus according to claim 3, wherein The film tape feeding mechanism is further configured to drive the film tape roll to translate along a second direction to adjust the position of the film tape roll in the second direction, which is perpendicular to the first direction; And / or, the clamping and cutting portion is further configured to drive the clamped membrane strip to translate along a second direction in order to adjust the position of the membrane strip in the second direction.

5. The cell sheet laminating apparatus according to claim 4, wherein The film belt feeding mechanism includes a first mounting frame, a second mounting frame, a first translation drive module, a feeding roller, and a rotation drive module, wherein: The second mounting bracket is slidably connected to the first mounting bracket and is drive-connected to the first translation drive module disposed on the first mounting bracket; The feeding roller is rotatably connected to the second mounting frame and is connected to a rotary drive module mounted on the second mounting frame. The feeding roller is used to mount the film strip roll, and the rotary drive module is configured to drive the feeding roller to rotate so as to drive the film strip roll to rotate synchronously. The first translation drive module is configured to drive the second mounting bracket to slide relative to the first mounting bracket along the second direction to adjust the position of the film strip roll in the second direction.

6. The cell sheet laminating apparatus according to claim 4, wherein The clamping and cutting section includes a base, a second translation drive module, a third mounting bracket, a first clamping assembly, and a cutting assembly, wherein: The third mounting bracket is slidably connected to the base, and the second translation drive module is disposed on the base and is connected to the third mounting bracket in a transmission manner; The first clamping assembly and the cutting assembly are disposed on the third mounting bracket. The film strip passes through the first clamping assembly and the cutting assembly in sequence. The first clamping assembly is configured to clamp the film strip from a first side of the cutting assembly, and the cutting assembly is configured to cut the clamped film strip to obtain the film strip segment. The second translation drive module is configured to drive the third mounting bracket to slide relative to the base along the second direction to adjust the position of the membrane strip held by the first clamping assembly in the second direction.

7. The cell sheet laminating apparatus according to claim 6, wherein The clamping and cutting section further includes a second clamping assembly disposed on the third mounting bracket. The cutting assembly is located between the first clamping assembly and the second clamping assembly. The second clamping assembly is configured to clamp the film strip from a second side of the cutting assembly to a first end of the support platform. The first end of the support platform is the end of the support platform near the clamping and cutting section. The cutting assembly is configured to cut the film strip between the first clamping assembly and the second clamping assembly.

8. The cell sheet laminating apparatus according to claim 7, wherein The third mounting bracket includes a first mounting bracket, a second mounting bracket, and an eighth lifting drive module, wherein: The first mounting bracket is slidably connected to the base, and the second translation drive module is drivenly connected to the first mounting bracket; The second mounting bracket is slidably and vertically connected to the first mounting bracket. Both the first clamping component and the second clamping component are mounted on the second mounting bracket, and the cutting component is mounted on the first mounting bracket. The eighth lifting drive module is mounted on the first mounting bracket, and the eighth lifting drive module is used to drive the second mounting bracket to move up and down between the first high position and the first low position; The eighth lifting drive module is configured to drive the second mounting bracket to descend to the first low position to tension the membrane strip to the first end of the support platform; the eighth lifting drive module is also configured to drive the second mounting bracket to rise to the first high position, so that the new free end of the membrane strip after cutting is higher than the support platform.

9. The cell sheet laminating apparatus according to claim 6, wherein The clamping and cutting section also includes a ninth translation drive module. The movable end of the ninth translation drive module is connected to the base. The ninth translation drive module is configured to drive the base to move closer to or away from the first end of the support platform.

10. The cell sheet laminating apparatus according to claim 4, wherein The film tape cutting mechanism further includes a detection unit disposed between the film tape feeding mechanism and the pressing and cutting part; After the film belt fed by the film belt feeding mechanism passes through the detection unit, it enters the pressing and cutting unit. The detection unit is configured to detect the edge of the film belt to determine whether the film belt is skewed. The film tape feeding mechanism is configured to adjust the position of the film tape roll in the second direction when the detection unit detects that the film tape is misaligned, so as to correct the film tape misalignment. And / or, the clamping and cutting part is configured to adjust the position of the membrane strip in the second direction to correct the membrane strip deviation when the detection part detects that the membrane strip is misaligned.

11. The battery cell stacking apparatus as described in claim 2, characterized in that, The membrane strip cutting mechanism includes a cutting section and a receiving section, wherein: The cutting section is configured to pick up the film strip segment from the film strip cutting mechanism and to transport the picked-up film strip segment to the receiving section for cutting; The receiving and cutting part is configured to cooperate with the cutting part to cut the film strip segment into several film strips.

12. The cell sheet laminating apparatus according to claim 11, wherein The cutting section includes a movable module, a fourth mounting bracket, an adsorption plate, and a cutting assembly, wherein: The fourth mounting bracket is connected to the movable part of the mobile module; The adsorption plate is disposed at the bottom of the fourth mounting frame, and several slits are arranged side by side at intervals on the adsorption plate, running from top to bottom through the adsorption plate. The slitting assembly is mounted on the fourth mounting bracket and located above the adsorption plate; The mobile module is configured to drive the fourth mounting frame and the adsorption plate to translate and lift, so as to drive the adsorption plate to pick up the film strip segment from the film strip cutting mechanism and transport the picked-up film strip segment to the receiving part. The slitting assembly is configured to slit the membrane strip segment located on the receiving portion via a plurality of slitting seams.

13. The cell sheet laminating apparatus according to claim 12, wherein The slitting assembly includes a third translation drive module, a first lifting drive module, a blade holder, and several cutting blades, wherein: The third translation drive module is mounted on the fourth mounting bracket, the first lifting drive module is connected to the movable part of the third translation drive module, the blade holder is connected to the movable part of the first lifting drive module, and a plurality of the cutting blades are arranged side by side at intervals on the blade holder and correspond one-to-one with the cutting seams. The first lifting drive module is configured to drive the blade holder to descend, so that a plurality of cutters pass downward through the corresponding slitting slits and abut against the film strip segment located on the cutting portion; The third translation drive module is configured to drive the blade holder to reciprocate along the extension direction of the slitting seam, so as to drive the several cutters to cut the film strip into several film strips.

14. The cell sheet laminating apparatus according to claim 11, wherein The cutting section includes at least one cutting table, which is configured to move between a slitting station near the film tape cutting mechanism and a unloading station near the conveying mechanism. The cutting section transports the picked-up film strip segment to the receiving table located at the slitting station, and cuts the film strip segment into several film strips; The conveying mechanism picks up the film strip from the cutting table located at the unloading station.

15. The cell sheet laminating apparatus according to claim 14, wherein The cutting platform is provided with several cutting grooves arranged side by side at intervals; The cutting section is configured to cut the membrane strip segment into several membrane strips via several of the cutting grooves.

16. The cell sheet laminating apparatus according to claim 14, wherein The receiving and cutting section includes two receiving and cutting tables, which are configured to alternately move to the slitting station to receive the film strip segments transported by the cutting section, and to alternately move a plurality of slit film strips to the unloading station. At least one of the two cutting platforms is configured to be able to move up and down in the vertical direction to allow for movement avoidance of the other cutting platform.

17. The cell sheet laminating apparatus according to claim 1, wherein The first conveying mechanism includes a conveying section, a first straightening section, a second straightening section, and a third straightening section, wherein: The conveying unit is configured to convey at least one battery cell to the lamination station. The conveying unit is also provided with a first sizing station and a second sizing station located in front of the lamination station and arranged sequentially along the conveying direction of the conveying unit. The first straightening section is disposed on the first side of the conveying section at the first straightening station. The first straightening section is configured to drive the battery cell at the first straightening station to move along a conveying direction perpendicular to the conveying section, so as to straighten the battery cell located at the first straightening station from the first side. The second straightening section is disposed on the second side of the conveying section at the second straightening station. The second straightening section is configured to drive the battery cell at the second straightening station to move along a conveying direction perpendicular to the conveying section, so as to straighten the battery cell located at the second straightening station from the second side. The third straightening section is disposed on both sides of the conveying section at the lamination station. The third straightening section is configured to drive the solar cells at the lamination station to move along a conveying direction parallel to the conveying section, so as to straighten the solar cells located at the lamination station from the front or the rear.

18. The battery cell stacking apparatus as described in claim 17, characterized in that: The first straightening section includes a fourth translation drive module, a first straightening frame, and a first straightening component, wherein: the first straightening frame is connected to the movable part of the fourth translation drive module, the first straightening component is disposed on the first straightening frame, and the first straightening component includes a first straightening surface extending along the conveying direction of the conveying section; the fourth translation drive module is configured to drive the first straightening frame to translate along the conveying direction perpendicular to the conveying section, so as to drive the first straightening surface of the first straightening component to push the battery cell of the first straightening station from the first side to straighten it; The second alignment section includes a fifth translation drive module, a second alignment frame, and a plurality of second alignment components, wherein: the second alignment frame is connected to the movable part of the fifth translation drive module, the second alignment components are disposed on the second alignment frame, and the second alignment components include a second alignment surface extending along the conveying direction of the conveying section, the fifth translation drive module is configured to drive the second alignment frame to translate perpendicular to the conveying direction of the conveying section, so as to drive the second alignment surface of the second alignment component to push the battery cells of the second alignment station from the second side to align them.

19. The cell sheet laminating apparatus according to claim 17, wherein The third alignment section includes a sixth translation drive module, a second lifting drive module, a third lifting drive module, a third alignment frame, a fourth alignment frame, several third alignment components, and several fourth alignment components, wherein: The sixth translation drive module is located below the conveying section; The second lifting drive module is connected to the movable part of the sixth translation drive module. The third alignment frame is connected to the movable part of the second lifting drive module and is located on the first side of the conveying part at the film stacking station. A plurality of the third alignment components are spaced apart on the third alignment frame. The distance between two adjacent third alignment components is greater than the width of the battery cell along the conveying direction of the conveying part. The third lifting drive module is connected to the movable part of the sixth translation drive module. The fourth alignment frame is connected to the movable part of the third lifting drive module and is located on the second side of the conveying part at the film stacking station. A plurality of fourth alignment parts are spaced apart on the fourth alignment frame and correspond one-to-one with the third alignment parts. The line connecting the fourth alignment part and the corresponding third alignment part is perpendicular to the conveying direction of the conveying part. The second lifting drive module and the third lifting drive module are configured to drive the third alignment frame and the fourth alignment frame to rise synchronously, so that the fourth alignment component and the corresponding third alignment component extend to the front or rear side of the battery cell at the lamination station. The sixth translation drive module is configured to drive the third and fourth alignment frames to translate along the conveying direction of the conveying section, so as to drive the fourth alignment component and the corresponding third alignment component to push the battery cells from the front or rear side for alignment.

20. The cell sheet laminating apparatus according to claim 17, wherein The conveying section is equipped with a heating component, which is used to heat the battery cells so that the film strips stacked on the edge of the battery cells are adhered to the battery cells.

21. The cell sheet laminating apparatus according to claim 1, wherein The battery cell stacking apparatus further includes a second conveying mechanism, and the conveying mechanism is further configured to transport the battery cell located at the stacking station to the second conveying mechanism; The second conveying mechanism is configured to convey the battery cell to a subsequent workstation.

22. The cell sheet laminating apparatus according to claim 21, wherein A flipping station is set on the conveying path of the second conveying mechanism; The flipping station is provided with a flipping part, which is configured to flip the battery cell that is transported to the flipping station.

23. The battery cell stacking apparatus as described in claim 21, characterized in that, The slitting mechanism, the first conveying mechanism, and the second conveying mechanism are spaced apart along a third direction, with the first conveying mechanism located between the slitting mechanism and the second conveying mechanism; The conveying mechanism includes a translation drive unit, a first conveying unit, and a second conveying unit, wherein the first conveying unit and the second conveying unit are spaced apart and connected to the movable component of the translation drive unit along the third direction; The translation drive unit is configured to synchronously drive the first transport unit and the second transport unit to translate along the third direction, so as to drive the second transport unit to transport at least one battery cell located at the lamination station to the second conveying mechanism, and to drive the first transport unit to transport at least one film strip located on the slitting mechanism to the battery cell located at the lamination station.

24. The cell sheet laminating apparatus according to claim 21, wherein The first waste box is provided at the output end of the first conveying mechanism; The battery cell stacking device further includes a first visual inspection mechanism disposed above the stacking station, the first visual inspection mechanism being configured to inspect the battery cells located at the stacking station; The transport mechanism is configured to transport the battery cells that have passed inspection to the second conveying mechanism; The first waste box is used to receive the battery cells that have been tested and confirmed to be defective.

25. The cell sheet laminating apparatus according to claim 24, wherein The battery cell stacking device further includes a second vision inspection mechanism disposed above the input end of the first conveying mechanism, the second vision inspection mechanism being configured to inspect the battery cells located at the input end of the first conveying mechanism; The conveying mechanism is configured to stack the picked-up film strips onto the edge of the qualified battery cells located at the stacking station; The first waste box is also used to receive battery cells that have been confirmed as defective after inspection.

26. The cell sheet laminating apparatus according to claim 1, wherein A second waste box is provided below the transport path of the transport mechanism; The battery cell stacking device also includes a third vision inspection mechanism disposed above the slitting mechanism, the third vision inspection mechanism being configured to inspect the film strips obtained by slitting; The conveying mechanism is configured to stack qualified membrane strips onto the battery cells located at the stacking station, and place unqualified membrane strips into the second waste box. Alternatively, the conveying mechanism is configured to, when all the film strips cut from the film strip have been inspected and confirmed to be qualified, convey all the film strips one by one to the battery cells located at the film stacking station; If at least one of the membrane strips cut from the membrane strip is found to be defective, all the membrane strips shall be placed into the second waste box.

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