Battery piece series connection device

By setting up a film feeding mechanism at the unloading station and utilizing the movement of the carrying mechanism to realize the heating and bonding of the adhesive film, the problems of the film feeding mechanism occupying a large space and causing interference are solved, and the quality and efficiency of the battery cell string welding are improved.

CN120751806APending Publication Date: 2025-10-03WUXI AUTOWELL TECH
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Patent Information

Application Number
CN202410380966.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-03-31
Publication Date
2025-10-03

AI Technical Summary

Technical Problem

In the existing battery cell string welding process, the film supply mechanism occupies a large space and easily interferes with other mechanisms, resulting in a prolonged operation cycle.

Method used

A film feeding mechanism is set up at the unloading station. The prefabricated adhesive film is transferred to the pallet by the movement of the carrying mechanism and heated to release the viscosity, so as to achieve the positioning and bonding of the solder ribbon and the battery cell to avoid interference with other mechanisms.

Benefits of technology

It improves the quality and operation rhythm of battery strings, reduces interference between mechanisms, and improves processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a battery piece series connection device, and belongs to the field of battery string manufacturing. The battery piece series connection device comprises a bearing mechanism and a film supply mechanism, a supporting plate of the bearing mechanism reciprocates and sequentially passes through a feeding station, a welding station and a discharging station, and when the supporting plate moves to the discharging station, a battery string formed by welding a welding strip set and a battery piece set is carried to the next procedure to complete discharging. The film supply mechanism transfers a prefabricated adhesive film to the supporting plate located on the discharging station, the adhesive film is preheated by the heating assembly on the supporting plate, and the viscosity of the heated adhesive film is released, so that when the supporting plate moves to the feeding station to bear a welding strip set and a battery piece set, the viscosity of the adhesive film can adhere and position a welding strip, and the welding strip set and the battery piece set can be fixed. Therefore, the quality of a battery string formed by series connection when the welding strip group and the battery piece group are moved to a welding station can be ensured. In addition, the film supply mechanism is arranged close to the discharging station, transferring and feeding of the adhesive film are facilitated, and interference with other mechanisms such as the welding strip carrying mechanism and the battery piece carrying mechanism is avoided.
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Description

Technical Field

[0001] The present application relates to the field of solar cells, in particular to the field of cell string manufacturing, and in particular, to a cell string connection device. Background Art

[0002] A battery string is constructed by stacking the battery cells in a predetermined sequence with the solder ribbons welded to the cells. A common process for battery string welding involves using a conveyor belt to receive the battery cell and solder ribbon assembly at a loading station, moving the cell and ribbon assembly to the welding station, and then moving the welded battery string to an unloading station. To provide stable support and positioning, a layer of adhesive film is applied to the conveyor belt before receiving the battery cell and ribbon assembly, securing the ribbon in place.

[0003] This type of cell string soldering process typically requires a film feed mechanism at the loading station to provide adhesive film to the conveyor belt before the cell and ribbon assembly is transferred to the conveyor belt. However, installing a film feed mechanism at the loading station takes up a lot of space and can easily interfere with other nearby mechanisms, such as the ribbon and cell transport mechanisms. This makes film lamination and feeding operations extremely inconvenient, thus prolonging the cell string soldering cycle. Invention content

[0004] The example of the present application provides a battery cell stringing device, which has a film feeding mechanism arranged near the unloading station to facilitate the transfer and feeding of the adhesive film, and will not interfere with other mechanisms such as the solder ribbon conveying mechanism and the battery cell conveying mechanism, thereby helping to maintain a high operating rhythm.

[0005] The solution of this application example is implemented through the following content.

[0006] The example of this application provides a battery cell series connection device, including:

[0007] The supporting mechanism includes a support plate and a heating assembly installed below the support plate supporting surface. The support plate moves back and forth along a first direction and passes through a loading station and an unloading station in sequence. The support plate is used to support the adhesive film and support and fix the welding ribbon group extending along the first direction and the battery cell group laid on the welding ribbon group. The heating assembly is used to heat the adhesive film, the welding ribbon group and the battery cell group; and

[0008] The film feeding mechanism is arranged adjacent to the unloading station, and after the support plate moves to the unloading station and completes unloading, the film feeding mechanism transfers the prefabricated adhesive film to the support plate, and the adhesive film releases its viscosity after being heated by the heating component.

[0009] In the above implementation, the pallet of the carrying mechanism moves back and forth and passes through the loading station and the unloading station in sequence. When the pallet moves to the unloading station, the battery string formed by the series connection of the solder ribbon group and the battery cell group is transported to the next process to complete the unloading. The film supply mechanism transfers the prefabricated adhesive film to the pallet located at the unloading station. The adhesive film is preheated by the heating component on the pallet. The heated adhesive film releases its viscosity. Therefore, when the pallet moves to the loading station to receive the solder ribbon group and the battery cell group, the viscosity of the adhesive film can adhere the solder ribbon in place, thereby improving the quality of the battery string formed by the series connection of the solder ribbon group and the battery cell group. In addition, the film supply mechanism is arranged near the unloading station to facilitate the transfer and feeding of the adhesive film, and will not interfere with other mechanisms such as the solder ribbon conveying mechanism and the battery cell conveying mechanism, which helps to maintain a high working rhythm.

[0010] According to some examples of the present application, the battery cell stringing device also includes a stringing mechanism, a stringing station is arranged between the loading station and the unloading station, the stringing mechanism is arranged at the stringing station, the stringing mechanism includes at least a moving part and a clamping part, the clamping part is installed at the driving end of the moving part, the moving part is used to drive the clamping part to press the adhesive film, solder ribbon group and battery cell group placed on the tray to complete the stringing of the adhesive film, solder ribbon group and battery cell group.

[0011] In this embodiment, the pressing component in the serial connection mechanism can further press the adhesive film, solder ribbon group and battery cells conveyed on the pallet under the drive of the moving component, thereby increasing the strength of the serial connection of the adhesive film, solder ribbon group and battery cells and further improving the serial connection quality.

[0012] According to some examples of the present application, the serial connection mechanism further includes a heating component. In some examples, the heating component is connected to the moving component and is disposed above the pressing component. The heating component is used to heat the adhesive film, solder ribbon assembly, and battery cell assembly placed on the pallet for serial connection. In other examples, the heating component is disposed within the pressing component and heats the pressing component. The pressing component is used to heat the adhesive film, solder ribbon assembly, and battery cell assembly placed on the pallet for serial connection.

[0013] By heating the adhesive film, the soldering ribbon group and the battery cell group and applying pressure simultaneously by the heating component, the series connection effect is better and the battery string formed is of higher quality.

[0014] According to some examples of the present application, the battery cell string connection device also includes a unloading mechanism located at the unloading station, the unloading mechanism includes an unloading moving part and an unloading adsorption part, the unloading adsorption part is connected to the driving end of the unloading moving part, the unloading adsorption part is used to adsorb or release the battery string, and the unloading moving part is used to drive the unloading adsorption part to move to complete the unloading of the battery string on the pallet.

[0015] The unloading mechanism configured at the unloading station can quickly transport the battery string from the pallet at the unloading station, and the battery string can be adsorbed by the adsorption component to avoid mechanical damage.

[0016] According to some examples of the present application, the blanking mechanism further includes a crimping member connected to the driving end of the blanking moving component, and the crimping member is used to further press the battery string to be blanked.

[0017] In the process of the blanking mechanism picking up the blanked battery string, further pressing the battery string to be blanked by the crimping piece helps to further improve the quality of the battery string.

[0018] According to some examples of the present application, the adhesive film provided by the film supply mechanism includes multiple spaced-apart sections of film, the welding ribbon group placed on the support plate is located on the film, and each section of the film supports at least one battery cell in the battery cell group.

[0019] The membrane is flexible and its size can be adjusted according to the number of cells to be accommodated.

[0020] According to some examples of the present application, the adhesive film provided by the film supply mechanism includes a continuous film strip, the welding tape group placed on the pallet is located on the film strip, and the film strip supports all battery cells in the battery cell group.

[0021] The membrane tape has a simple structure and is easy to process.

[0022] According to some examples of the present application, the battery cell series connection device includes two supporting mechanisms arranged in parallel, and the two supporting mechanisms are located on the same side of the film supply mechanism.

[0023] Two supporting mechanisms are arranged in parallel, and the two pallets move back and forth along the first direction on their respective first guide components, so that they rotate in each workstation in turn, and the loading, serial connection, unloading and film supply mechanisms are used to coat the pallets in turn, thereby improving work efficiency.

[0024] According to some examples of the present application, the supporting mechanism further includes:

[0025] A first guide member extending along a first direction and sequentially passing through a loading station and an unloading station, the support plate being slidably disposed on the first guide member; and

[0026] The first driving mechanism drives the supporting plate to reciprocate along the first direction on the first guide component.

[0027] The first driving mechanism drives the pallet to move back and forth on the first guide component extending along the first direction, so that the pallet can flow through various workstations. This matching structure has simple construction, strong durability and easy maintenance.

[0028] According to some examples of the present application, the supporting mechanism further includes:

[0029] The first slide is slidably arranged on the first guide component and supports the supporting plate. The first slide is driven by the first driving mechanism to move along the first direction on the first guide component.

[0030] A sliding fit relationship is established with the first guide component by a separately configured first slide seat, thereby supporting the support plate, thereby facilitating independent maintenance of each component.

[0031] According to some examples of the present application, a second guide component extending along a second direction is provided on the first slide, and the second direction is perpendicular to the first direction on a horizontal plane. The supporting mechanism also includes a second slide and a second driving mechanism. The second slide is slidably arranged on the second guide component, and the second driving mechanism drives the second slide to move along the second direction on the second guide component.

[0032] The second driving mechanism is used to drive the second slide to slide on the second guide component, so as to facilitate adjustment of the position of the supporting plate perpendicular to the first direction.

[0033] According to some examples of the present application, the supporting mechanism further includes an adsorption component, which includes a vacuum generator and an adsorption hole provided on the support plate, and the adsorption hole is connected to the vacuum generator to adsorb the adhesive film.

[0034] The vacuum generator generates adsorption force through the adsorption holes so that the solder ribbon group and the battery cell group are adsorbed and positioned on the pallet.

[0035] According to some examples of the present application, the battery cell series connection device further includes:

[0036] The welding ribbon transport mechanism is provided on one side of the loading station and is used to transport the welding ribbon group to the pallet at the loading station;

[0037] In one implementation, the welding ribbon conveying mechanism includes a welding ribbon moving mechanism and a clamp for conveying the welding ribbon, the clamp clamps the welding ribbon from both ends of each welding ribbon group, and the specific clamp may include a left clamp and a right clamp, the left clamp and the right clamp clamp the welding ribbon from the horizontal direction of the welding ribbon end, or the clamp may include a support pad and a pressure head, the support pad and the pressure head clamp the welding ribbon from the vertical direction of the welding ribbon end. The welding ribbon clamp is installed on the welding ribbon moving mechanism, and the welding ribbon is conveyed and loaded under the drive of the welding ribbon moving mechanism. In one implementation, the welding ribbon moving mechanism includes a motor and corresponding transmission and guide devices.

[0038] In one implementation, there are multiple groups of clamps for transporting solder ribbons, and the solder ribbon transport mechanism can transport the solder ribbon groups required for a battery string.

[0039] The cell transport mechanism is located on the other side of the loading station and is used to transport the cell group to the pallet at the loading station and stack it on the welding ribbon group;

[0040] In one implementation, the battery cell transport mechanism includes a battery cell moving device and a suction cup. The suction cup is connected to the driving end of the battery cell moving device and moves the battery cell under the drive of the battery cell moving device. In one implementation, the battery cell moving device includes a motor and corresponding transmission and guide devices.

[0041] In one implementation, there are multiple suction cups in the battery cell transport mechanism, and the battery cell transport mechanism can load the battery cells required for a whole battery string at one time.

[0042] The discharging conveying mechanism is arranged adjacent to the unloading station, and the discharging conveying mechanism and the film supply mechanism are arranged on both sides of the unloading station opposite to each other.

[0043] The pallet moves back and forth along the first direction, and cooperates with the solder ribbon conveying mechanism and the battery cell conveying mechanism at the loading station to receive the solder ribbon group and the battery cell group, and unloads the materials to the discharging conveying mechanism at the unloading station. This flow coordination method shortens the material transportation time at the loading station, welding station and unloading station, and improves the processing efficiency.

[0044] According to some examples of the present application, the positions of the support plates of the two supporting mechanisms at the loading station, the serial connection station, the unloading station, and the positions of the support plates when receiving the film meet different forms.

[0045] In particular, according to some embodiments of the present application, the two pallets are positioned at the same or different locations at the loading station. When the two pallets reciprocate and have loading stations at different locations, the two support mechanisms are more independent. Having loading stations at the same location helps reduce the burden on the cell and ribbon handling mechanisms, preventing their movement accuracy from being affected, and thereby reducing and simplifying the movement of the ribbon assembly and cell assembly handling mechanisms.

[0046] In particular, according to some examples of the present application, the positions of the two pallets at the serial connection station are the same or different.

[0047] When the two pallets reciprocate, their respective connection stations are located independently of each other, which can avoid interference during the connection operation. If the two pallets are located in the same position at the connection station, the movement of the connection mechanism can be simplified and the movement accuracy can be avoided.

[0048] In particular, according to some examples of the present application, the positions of the two pallets at the blanking station are the same or different.

[0049] When the two pallets move back and forth, the positions of their respective unloading stations are the same, thereby reducing and simplifying the battery string transport mechanism and its movement amount.

[0050] In particular, according to some examples of the present application, the positions of the support plates of the two supporting mechanisms when receiving the adhesive film are the same or different.

[0051] The same position can reduce and simplify the film feeding mechanism and its movement, while the different positions can help enhance the independence of the film feeding operation of the two pallets.

[0052] According to some examples of the present application, the pallet of one carrying mechanism is arranged close to the film supply mechanism, and the pallet of the other carrying mechanism is arranged away from the film supply mechanism. The pallet of the carrying mechanism arranged away from the film supply mechanism is configured to be able to move close to the film supply mechanism to receive the material.

[0053] This can reduce and simplify the film feeding mechanism and its movement amount, and move the other support plate to a position close to the film feeding mechanism after unloading to receive the film, which can reduce the movement distance of the film and improve the film feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] For a clearer explanation, the following briefly introduces the drawings required for the description.

[0055] Figure 1 and Figure 2 A schematic diagram of the structure of a battery string welding machine provided in an embodiment of the present application;

[0056] Figure 3 A schematic diagram of the flow of the supporting mechanism at each workstation during operation of the battery stringer provided in an embodiment of the present application;

[0057] Figure 4 A schematic structural diagram of a battery string conveying device 100 provided in an embodiment of the present application;

[0058] Figure 5 for Figure 4 A is an enlarged schematic diagram;

[0059] Figure 6 A schematic diagram of a portion of the structure of the supporting mechanism provided in an embodiment of the present application;

[0060] Figure 7 for Figure 6 A magnified schematic diagram of middle B;

[0061] Figure 8 A schematic diagram of the structure of the regular components provided in the embodiment of the present application;

[0062] Figure 9 for Figure 8 A magnified schematic diagram of middle C;

[0063] Figure 10 Another schematic diagram of the transfer of the supporting mechanism between various workstations during operation of the battery stringer provided in an embodiment of the present application;

[0064] Figure 11 A schematic diagram of the flow of the supporting mechanism at each workstation during operation of the battery stringer provided in an embodiment of the present application;

[0065] Figure 12 A schematic structural diagram of the welding mechanism provided in an embodiment of the present application.

[0066] Description of reference numerals:

[0067] 1. Adhesive film; 1a. Film strip; 1b. Diaphragm; 2. Welding ribbon assembly; 3. Cell assembly; 4. Loading station; 5. Connection station; 6. Unloading station;

[0068] 100, carrying mechanism; 200, solder ribbon transport mechanism; 300, cell transport mechanism; 400, serial connection mechanism; 500, unloading mechanism; 600, film supply mechanism; 700, discharge conveying mechanism;

[0069] 110, first carrying mechanism; 120, second carrying mechanism;

[0070] 111, support plate; 111a, avoidance opening;

[0071] 112a, first guide member; 112b, first slide; 112c, first drive mechanism; 113a, second guide member; 113b, second slide; 113c, second drive mechanism; 113d, motor; 113e, ratchet; 113f, rack;

[0072] 114, adsorption component; 114a, adsorption hole;

[0073] 115. Heating component;

[0074] 116, regularization component; 116a, support; 116b, bottom plate; 116c, support plate; 116d, regularization piece; 116e, groove;

[0075] 117. Lifting drive mechanism;

[0076] 118. Position adjustment drive mechanism;

[0077] 410, guide rail; 420, welding base; 430, first moving mechanism; 440, second moving mechanism; 450, pressing component; 460, heating component;

[0078] 510, material unloading moving component; 520, material unloading adsorption component. DETAILED DESCRIPTION

[0079] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are part of the embodiments of the present disclosure, not all of them. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0080] Currently, when stringing cells together, a conveyor belt spans the loading, welding, and unloading stations, receiving and transporting the ribbon and cell stacks. A film feeder is typically installed at the loading station to apply adhesive film to the conveyor belt before the cell stack and ribbon stack are transferred to the conveyor. However, this layout consumes a significant amount of space and is prone to interference between mechanisms near the loading station.

[0081] This application proposes a new battery cell stringing device, which sets a film feeding mechanism near the unloading station to facilitate the transfer and feeding of the adhesive film, and will not interfere with other mechanisms such as the soldering ribbon conveying mechanism and the battery cell conveying mechanism, which helps to maintain a high working rhythm.

[0082] In an example of a specific implementation of this application, Figure 1 、 Figure 2 and Figure 3 As shown, and refer to Figure 4 In this example, a battery cell string connection device includes: a carrying mechanism 100, a solder ribbon conveying mechanism 200, a battery cell conveying mechanism 300, a string connection mechanism 400, a material unloading mechanism 500, a film supply mechanism 600 and a material discharging conveying mechanism 700.

[0083] In this example, the carrying mechanism 100 can be one or two arranged in parallel (as shown in the figure, a first carrying mechanism 110 and a second carrying mechanism 120 are parallel to each other). Relatively speaking, when two carrying mechanisms 100 are arranged in parallel, the first carrying mechanism 110 and the second carrying mechanism 120 can move back and forth in the first direction in turn (alternately) and pass through the loading station 4, the serial connection station 5 and the unloading station 6 in sequence. In addition, in this example, the carrying mechanism 100 has a support plate 111 and a heating component 115 located below the support plate 111. The support plate 111 is used to receive and transport the adhesive film 1, the welding ribbon group 2 and the battery cell group 3, and the heating component 115 is used to heat the material on the support plate 111, so that the welding ribbon and the battery cell can be directly bonded.

[0084] In this example, the solder ribbon transport mechanism 200 is disposed adjacent to one side of the loading station 4 , and is used to transport the solder ribbon group 2 to the support plate 111 at the loading station 4 .

[0085] In this example, the cell transport mechanism 300 is disposed adjacent to the other side of the loading station 4 , and is used to transport the cell group 3 to the support plate 111 at the loading station 4 and stack it on the welding ribbon group 2 .

[0086] In this example, the string connection mechanism 400 is arranged near the string connection station 5, and when the welding ribbon group 2 and the battery cell group 3 are transported to the string connection station 5 by the pallet 111, the string connection mechanism 400 presses the battery cell group 3 and the welding ribbon group 2 to realize string connection to form a battery string.

[0087] In this example, the unloading mechanism 500 is arranged adjacent to the unloading station 6 , and when the battery string is transported to the unloading station 6 by the pallet 111 , the unloading mechanism 500 picks up the battery string on the pallet 111 and carries it to complete the unloading of the battery string.

[0088] In this example, the film feeding mechanism 600 is arranged near the unloading station 6, and after the support plate 111 moves to the unloading station 6 and completes unloading, the film feeding mechanism 600 transfers the prefabricated adhesive film 1 to the support plate 111, and the adhesive film 1 is heated by the heating component 115 to release its viscosity.

[0089] In this example, the discharge conveying mechanism 700 is arranged adjacent to the unloading station 6 , and the discharge conveying mechanism 700 is used to receive the battery string picked up by the unloading mechanism 500 , and the discharge conveying mechanism 700 and the film supply mechanism 600 are arranged on both sides of the unloading station 6 opposite to each other.

[0090] The carrier mechanism 110 moves through the various workstations as follows: When the carrier mechanism 110 is at loading station 4, the pallet 111 receives the solder ribbon assembly 2 and the battery cell assembly 3. At the stringing station 5, it pauses for a period of time to allow the solder ribbon assembly 2 and the battery cell assembly 3 to be connected in series. At unloading station 6, the battery string formed by connecting the solder ribbon assembly 2 and the battery cell assembly 3 is picked up by the unloading mechanism 500 and transported to the discharge conveyor mechanism 700, which transports the battery string to the next process. After the battery string is unloaded from the pallet 111, the film feeding mechanism 600 transfers the prefabricated adhesive film 1 to the pallet 111 at unloading station 6. The adhesive film 1 is heated by the heating assembly 115 to release its viscosity.

[0091] In the description of this specific embodiment, the "adjacent" setting method refers to the spatial position of one mechanism being close to or adjacent to another mechanism or a part of another mechanism, so that when materials flow between the two mechanisms or when other operations requiring the connection or cooperation of the two mechanisms are performed, the material transfer is more stable and the movements of the two mechanisms are smoother and more efficient.

[0092] Combined with the examples described above, generally speaking, one of the main improvements of the battery cell stringing device provided in the embodiment of the present application is that a film feeding mechanism 600 is set near the unloading station 6 to facilitate the transfer and feeding of the adhesive film 1, and will not interfere with other mechanisms such as the soldering ribbon conveying mechanism 200 and the battery cell conveying mechanism 300, which helps to maintain a high working rhythm.

[0093] In combination with the foregoing description, in summary, a battery cell stringing device provided in an embodiment of the present application basically includes: a carrying mechanism 100 and a film supply mechanism 600; and, the carrying mechanism 100 includes a support plate 111 and a heating component 115 installed below the carrying surface of the support plate 111, the support plate 111 moves back and forth along the first direction and passes through the loading station 4 and the unloading station 6 in sequence, the support plate 111 is used to carry the adhesive film 1 and carry and fix the welding ribbon group 2 extending along the first direction and the battery cell group 3 laid on the welding ribbon group 2, and the heating component 115 is used to heat the adhesive film 1, the welding ribbon group 2 and the battery cell group 3. In specific implementation, the heating component 115 can adopt a heating plate structure or a mesh structure, or the heating component can be a heating rod, or can be a heating network composed of heating wires or ; The heating component can be directly set inside the pallet 111 or attached to the bottom of the pallet 111 to heat the pallet 111; the bearing surface of the pallet 111 is the top (upper) surface of the pallet 111, which is used to carry the adhesive film 1, the welding ribbon group 2 and the battery cell group 3; and the film feeding mechanism 600 is set near the unloading station 6, and after the pallet 111 moves to the unloading station 6 and completes the unloading, the film feeding mechanism 600 transfers the prefabricated adhesive film 1 to the pallet 111, and the adhesive film 1 releases its viscosity after being heated by the heating component 115 on the pallet 111. Therefore, when the pallet 1 moves to the loading station 4 to receive the welding ribbon group 2 and the battery cell group 3, the viscosity of the adhesive film 1 can adhere the welding ribbon in place, which helps to ensure the quality of the battery string formed by connecting the welding ribbon group 2 and the battery cell group 3 in series.

[0094] In specific implementation, the battery cell string connection device provided in the embodiment of the present application is preferably configured with two supporting mechanisms 100, and the two supporting mechanisms 100 are arranged in parallel (as shown in the figure, a first supporting mechanism 110 and a second supporting mechanism 120 are parallel to each other), and the two supporting mechanisms are located on the same side of the film supply mechanism. The two supporting mechanisms 100 can be rotated (alternated) in each station, shortening the material transportation time at the loading station 4, the string connection station 5 and the unloading station 6, which helps to improve the operation rhythm and processing efficiency.

[0095] The following will refer to Figures 4 to 9 , and can be combined with Figures 1 to 3 , the supporting mechanism 100 (such as the first supporting mechanism 110 and the second supporting mechanism 120 shown in the figure) in the example is described in detail.

[0096] Reference Figure 4 and Figure 5 As shown, the carrying mechanism 100 includes a first guide member 112a, a support plate 111 slidably disposed on the first guide member 112a, and a first drive mechanism 112c that provides a driving force to drive the support plate 111 to slide on the first guide member 112a. The first guide member 112a extends along a first direction and sequentially passes through the loading station 4, the stringing station 5, and the unloading station 6. The support plate 111 is used to carry the solder ribbon group 2 extending along the first direction and the battery cell group 3 laid on the solder ribbon group 2. The solder ribbon group 2 and the battery cell group 3 are fixed and transported by the support plate 111. As described above, the first drive mechanism 112c drives the support plate 111 to move back and forth along the first direction on the first guide member 112a. Therefore, the support plate 111 can carry the solder ribbon group 2 and the battery cell group 3 or pass through the loading station 4, the stringing station 5, and the unloading station 6 in sequence without any load. This coordinated structure is simple in construction, highly durable, and easy to maintain, and is not prone to problems such as loosening, wear, and deviation.

[0097] In one implementation, the support plate 111 may be a whole plate or may be composed of a plurality of separately arranged plates arranged along the first direction.

[0098] In this embodiment, the two juxtaposed support mechanisms 100 can be understood as two first guide members 112a arranged side by side and in parallel, with the first drive mechanism 112c driving the corresponding support plates 111 to slide on their respective first guide members 112a. The two support plates 111 reciprocate along the first direction on their respective first guide members 112a, thereby rotating between the various workstations. This shortens the material transport time between the loading station 4, the connecting station 5, and the unloading station 6, thereby improving processing efficiency.

[0099] It is understandable that if Figure 3 As shown, when the two pallets 111 move back and forth along the first direction on their respective first guide parts 112a, each has an independent loading station 4, serial connection station 5 and unloading station 6. Independence means that when the two pallets 111 move, there is no spatial overlap and interference at these positions.

[0100] Reference Figure 4As shown, the supporting mechanism 100 is configured with a mechanism for enabling the pallet 111 to reciprocate in the first dimension (first direction). In one embodiment, the supporting mechanism 100 is configured with a first slide 112b that is relatively independent of the pallet 111. This relative independence can be achieved by the pallet 111 and the first slide 112b being in a detachable mounting and fitting relationship. The first slide 112b forms a sliding fit with the first guide member 112a, and the first slide 112b also forms a fixed support for the pallet 111. This detachable mounting and fitting structure facilitates independent maintenance of each component. Specifically, the supporting mechanism 100 also includes a first slide 112b, which is slidably set on the first guide member 112a and is used to support and fix the pallet 111. The first driving mechanism 112c provides a driving force for the first slide 112b, and under the action of the driving force, the first slide 112b moves back and forth with the pallet 111 on the first guide member 112a. In specific implementation, the first driving mechanism 112c may include a main pulley, a slave pulley and a traction belt. The traction belt is wound around the main pulley and the slave pulley. The first slide 112b is located in front of the main pulley and the slave pulley, and can be pulled by the traction belt to achieve movement on the first guide component 112a. The main pulley drives the traction belt under the action of the power source.

[0101] Continue to refer to Figure 4 and Figure 5As shown, the supporting mechanism 100 is configured with a mechanism for enabling the pallet 111 to reciprocate in the second dimension (second direction). In one embodiment, the carrying mechanism 100 also includes a second guide member 113a, a second slide 113b and a second driving mechanism 113c, and the second guide member 113a, the second slide 113b and the second driving mechanism 113c are arranged in the space between the first slide 112b and the support plate 111, wherein the second guide member 113a is arranged on the first slide 112b and extends along the second direction, and the second direction is perpendicular to the first direction on the horizontal plane, the second slide 113b is arranged on the second guide member 113a and forms a sliding fit with the second guide member 113a, and the support plate 111 is supported and fixed by the second slide 113, and the second driving mechanism 113c provides driving force to drive the second slide 113b to slide on the second guide member 113a. It can be understood that this sliding is the movement of the second slide 113b along the extension direction of the second guide member 113a (that is, the second direction). The supporting mechanism 100 of this embodiment can adjust the position of the pallet 111 in two dimensions in the horizontal plane. Specifically, the pallet 111 can realize position adjustment in one dimension (first direction) based on the first guide component 112a, the first slide 112b and the first driving mechanism 112c. By using the second driving mechanism 113c to drive the second slide 113b to slide on the second guide component 113a, the position of the pallet 111 can be adjusted in another dimension (second direction).

[0102] According to the mechanism for realizing reciprocating movement in the second dimension (second direction) described above, the supporting mechanism 100 can enable the two pallets 111 to have the same spatial position at one of the loading station 4, the serial connection station 5 and the unloading station 6, so as to simplify the equipment configuration of the solder ribbon conveying mechanism 200, the battery cell conveying mechanism 300, the welding mechanism 400 and the unloading mechanism 500, and optimize the movement amount or movement accuracy of these devices.

[0103] For example, combined Figure 5 As shown, the second driving mechanism 113c described above includes a motor 113d and a rack 113f. The motor 113d is mounted on the second slide 113b, and the output shaft of the motor 113d is configured with a ratchet 113e. The rack 113f is disposed on the first slide 112b and extends in a second direction (perpendicular to the first direction). The rack 113f and the ratchet 113e form a mating relationship. The motor 113d drives the ratchet 113e to rotate, thereby achieving the sliding movement of the second slide 113b in the second direction (perpendicular to the first direction) through the mating relationship between the rack 113f and the ratchet 113e. It is understood that the present application is not limited to the mating structure of the rack 113f and the ratchet 113e. Other mechanisms that can drive the second slide 113b to move in a direction perpendicular to the first direction can also be applied.

[0104] Reference Figure 6 and Figure 7 As shown, in one embodiment, the supporting mechanism 100 also includes an adsorption component 114 for positioning the welding ribbon group 2 and the battery cell group 3 on the pallet 111. Exemplarily, the adsorption component 114 includes a vacuum generator and an adsorption hole 114a provided on the pallet 111. The vacuum generator can be provided in the space below the pallet 111. The adsorption hole 114a is connected to the vacuum generator through a pipeline (such as a leather hose, etc.) to generate an adsorption force with the help of the vacuum degree generated by the vacuum generator, and the welding ribbon group 2 and the battery cell group 3 are adsorbed and positioned on the pallet 111 with the help of the adsorption force.

[0105] Reference Figure 6 and Figure 7 As shown, in an embodiment, the supporting mechanism 100 further includes a tidying component 116, and an avoidance opening 111a is provided on the support plate 111. The tidying component 116 can be driven to extend out of the avoidance opening 111a and adjust the position of the welding ribbon group 2 in the second direction (perpendicular to the first direction).

[0106] Reference Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, the structuring assembly 116 exemplarily includes a support 116a, a base plate 116b disposed on the support 116a, and a plurality of support plates 116c, each of which is mounted on the base plate 116b. Specifically, the support plates 116c can be relatively thin, with their surfaces perpendicularly mounted on the base plate 116b, and adjacent support plates 116c having a predetermined spacing along a first direction. A lifting drive mechanism 117 and a position adjustment drive mechanism 118 are disposed on the support 116a. The base plate 116b can be adjusted in height by the lifting drive mechanism 117, and its position perpendicular to the first direction by the position adjustment drive mechanism 118. Each support plate 116c has one side fixed to the base plate 116b, and a row of structuring pieces 116d formed on the opposite side. The regular piece 116d can be a block, a strip or other raised extension structure, and the number of regular pieces 116d corresponds to the number of welding strips in the welding strip group 2. With the help of the height adjustment described above, the regular piece 116d is extended from the avoidance opening 111a and touches the welding strip, thereby adjusting the position of the welding strip group 2, and then eliminating the position error caused by the welding strip conveying mechanism 200 when placing the welding strip, so as to ensure the quality of the battery string welding.

[0107] Reference Figure 9As shown, for example, in order to ensure that the position of the soldering ribbon is adjusted within the range of movement of the regulating piece 116d and to prevent the soldering ribbon from deviating due to inertial and unrestricted movement, a groove 116e is provided on each regulating piece 116d. The groove 116e is used to accommodate the soldering ribbon when the regulating piece 116d extends out of the opening 111a. The groove 116e accommodates the soldering ribbon, and the regulating piece 116d is driven to adjust the position of the soldering ribbon. In this example, the soldering ribbon accommodated in the groove 116e always moves with the regulating piece 116d, and the movement range is controlled, thereby achieving relatively accurate position adjustment.

[0108] Reference Figure 8 As shown, as an implementation example of the positioning drive mechanism 118, the positioning drive mechanism 118 includes a ball screw, a mounting portion provided on the base plate 116b, and a driving wheel provided on the support 116a. The ball screw includes a ball nut and a screw rod that cooperates with the ball nut. The ball nut is installed on the support 116a. The screw rod passing through the ball nut has one end that is threadedly connected to the mounting portion, and a driven wheel is installed on the other end. The driving wheel drives the driven wheel through a belt and then drives the ball screw to rotate. The rotation of the ball screw can drive the regulating piece 116d to move perpendicular to the first direction. After the welding ribbon is placed on the support plate 111, its position can be adjusted according to the movement of the regulating piece 116d.

[0109] Reference Figure 8 As shown, as an embodiment of the lifting drive mechanism 117, the lifting drive mechanism 117 includes a ring and a cam installed in the ring, the ring is installed on a side wall of the support 116a, the ring is sleeved on the outside of the cam, and the cam is in contact with the upper part of the inner peripheral wall defined by the ring, and there is always a gap between the inner peripheral wall and the cam in the horizontal direction. The inner peripheral wall defined by the ring has a first inner diameter along the horizontal direction and a second inner diameter along the vertical direction, and the first inner diameter is larger than the second inner diameter. The cam can be driven to rotate eccentrically, and when the cam rotates, it does not touch the inner peripheral wall of the ring in the horizontal direction. The eccentric rotation of the cam causes the ring to be displaced in the vertical direction and thus adjusts the height of the base plate 116b, thereby prompting the regular member 116d to move up and down through the avoidance opening 111a. When adjusting the position of the welding strip, the cam rotates to the position of lifting the annular part in the vertical direction, and the regular part 116d extends from the avoidance opening 111a, thereby touching the welding strip on the support plate 111 and achieving position adjustment; after completing the welding strip position adjustment, the cam rotates to the position of lowering the annular part in the vertical direction, and the regular part 116d drops below the support plate 111 through the avoidance opening 111a to avoid affecting the laying of the battery cells.

[0110] The above mainly discusses the structural form of the supporting mechanism 100. Now let's turn back to the battery cell series connection device with two supporting mechanisms 100 arranged in parallel as described above. Figures 10 and 11 And refer to Figures 1 to 4 Some embodiments of the battery stringer are further described.

[0111] Combine Figure 10 and Figure 11 As shown, in some embodiments, the two pallets 111 have the same loading station 4 when they reciprocate, which reduces the burden on the cell transport mechanism 300 and the ribbon transport mechanism 200 and prevents the movement accuracy of the cell transport mechanism 300 and the ribbon transport mechanism 200 from being affected. This also reduces and simplifies the spatial layout of the ribbon assembly transport mechanism 200 and the cell assembly transport mechanism 300.

[0112] Combine Figure 10 and Figure 11 As shown, in some embodiments, the two pallets 111 are positioned independently at the stringing station 5 to avoid interference during the stringing operation. That is, the two pallets 111 are stringed together at different positions, and the stringing device can automatically adjust its position to complete the stringing of the adhesive film 1, solder ribbon assembly 2, and battery cell assembly 3 carried by the two pallets 111 at different positions. Alternatively, the two pallets 111 can be configured to be in the same position at the stringing station 5, thereby simplifying the movement of the stringing mechanism 400.

[0113] Combine Figure 10 As shown, in one embodiment, the positions of the two pallets 111 at the blanking station 6 are independent of each other. Figure 11 As shown, in another embodiment, the two pallets 111 have the unloading stations 6 at the same position when they move back and forth, thereby reducing and simplifying the number of unloading mechanisms 500 and the movement amount of the unloading mechanisms 500.

[0114] Combine Figure 10 and Figure 11 As shown, in some embodiments, the two pallets 111 are at the same position at the loading station 4, and in order to optimize the layout space of related equipment, the position is located between the two first guide components 112a and deviates from one of the first guide components 112a.

[0115] It is understandable that, in order to avoid spatial interference between the two pallets 111 and enhance their independence, the positions of the two pallets 111 at the loading station 4 can also be independent of each other and do not affect each other. Based on similar reasons, the positions of the two pallets 111 at the unloading station 6 can also be independent of each other and do not affect each other.

[0116] Combine Figure 10As shown, in some embodiments, the support plate 111 of the first supporting mechanism 110 is arranged close to the film feeding mechanism 600, and the support plate 11 of the second supporting mechanism 120 is arranged relatively far away from the film feeding mechanism 600. The support plate 11 of the second supporting mechanism 120 is configured to be able to move close to the position of the film feeding mechanism 600 and receive the film 1 at this position, which can reduce the moving distance of the film 1 and improve the feeding efficiency of the film 1.

[0117] In addition, the adhesive film 1 provided by the film supply mechanism 600 may have various forms.

[0118] For example, refer to Figure 10 As shown, the adhesive film 1 includes a continuous film strip 1a, which has a simple structure and is easy to process. The welding strip group 2 placed on the support plate 111 is located on the film strip 1a, and the film strip 1a supports all the battery cells in the battery cell group 3.

[0119] For example, refer to Figure 11 As shown, the adhesive film 1 includes multiple spaced-apart segments of membrane 1b, the welding ribbon group 2 placed on the support plate 111 is located on the membrane 1b, and each segment of the membrane 1b supports at least one battery cell in the battery cell group 3. Therefore, the membrane 1b is flexible and its size can be adjusted according to the number of battery cells that need to be supported.

[0120] In one implementation, each section of the membrane 1b can carry 2, 3, 4, 5, or 6 solar cells, etc. The length of the membrane 1b is approximately equal to the sum of the lengths of the carried solar cells.

[0121] When the embodiment of the present application is implemented, the carrying mechanism 100 and the film supply mechanism 600 can also be configured with one or any combination of the solder ribbon conveying mechanism 200, the battery cell conveying mechanism 300, the welding mechanism 400, the unloading mechanism 500 and the discharge conveying mechanism 700 described above according to the requirements of the working scenario.

[0122] For example, in some embodiments, the battery cell series connection device is configured with the series connection mechanism 400 described above based on the embodiment described above. Figures 1 to 4 And refer to Figure 12As shown, a connection station 5 is provided between the loading station 4 and the unloading station 6. In one embodiment, the loading station 4 is provided near the head end of the first guide member 112a, the connection station 5 is provided near the middle of the first guide member 112a, and the unloading station 6 is provided near the tail end of the first guide member 112a. Since the second guide member 113a and the first guide member 112a are provided in parallel, the above-mentioned station arrangement is also applicable to the second guide member 113a and will not be described in detail here. The connection mechanism 400 is provided at the connection station 5. The connection mechanism 400 includes at least a moving member and a pressing member 450. The pressing member 450 is installed at the driving end of the moving member. As the name implies, the moving component has the function of moving, and the pressing component 450 moves with the moving component. The movement can be along a predetermined direction, for example, moving toward the surface of the pallet 111, sliding from one side of the pallet 111 to the other side (the direction of this sliding is perpendicular to the first direction in the plane). In this embodiment, the moving component drives the pressing component 45 to press the adhesive film 1, the welding ribbon group 2 and the battery cell group 3 placed on the pallet 111, and completes the series connection of the adhesive film 1, the welding ribbon group 2 and the battery cell group 3 under the action of pressure.

[0123] The arrangement of the movable components enables the serial connection device to be compatible with the serial connection of the adhesive films, welding ribbon groups and battery cell groups on the support plates 111 at different positions.

[0124] Exemplarily, the movable component may include a guide rail 410, a welding base 420, a first movable mechanism 430 and a second movable mechanism 440. The guide rail 410 extends above the serial connection station 5, and the extension direction of the guide rail 410 is perpendicular to the first direction (equivalent to extending from one side of the pallet 111 to the other side). The welding base 420 is slidably set on the guide rail 410. The first movable mechanism 430 drives the welding base 420 to slide back and forth along the guide rail 410 and can slide to above the serial connection station 5. The second movable mechanism 440 is used to drive the clamping component 450 to rise and fall vertically. The second movable mechanism 440 has a fixed end and a lifting drive end. The fixed end is installed on the driving welding base 420. The lifting drive end of the second movable mechanism 440 is installed with a clamping component 450. The clamping component 450 is driven by the second movable mechanism 440 to achieve vertical lifting. During the serial connection operation, the clamping component 450 is used to press the battery cell group 3 and the welding ribbon group 2 to achieve serial connection to form a battery string.

[0125] Exemplarily, the serial connection device 400 described above further includes a heating component 460. Exemplarily, the heating component 460 is connected to the moving component, and the heating component 460 is arranged above the pressing component 450. The heating component 460 is used to heat the adhesive film 1, the welding ribbon group 2 and the battery cell group 3 placed on the support plate 111, and realize serial connection under a certain temperature and pressure. In specific implementation, the heating component 460 can adopt a lamp-like heating structure such as an infrared lamp tube, an LED lamp, or adopt hot air heating or electric heating wire heating, and the pressing component 450 can be an elastic pressure pin, which can be installed on the pressure frame to apply pressure to the battery cell group 3 and the like. As another example, the heating component 460 can be a heating rod or a structure that uses hot air or hot oil to transfer heat, which is arranged inside the pressing component 450. The pressing component 450 can be a plate-like structure. The heating component 460 heats the pressing component 450, and the pressing component 450 is used to heat the adhesive film 1, the welding ribbon group 2 and the battery cell group 3 placed on the support plate 11 in series.

[0126] For example, in some embodiments, the battery cell series connection device is configured with the above-described unloading mechanism 500 based on the above-described embodiment. Figures 1 to 4 As shown, the unloading mechanism 500 is arranged at a position close to the unloading station 6. In addition, the unloading mechanism 500 includes an unloading moving part 510 and an unloading adsorption part 520. The unloading adsorption part 520 is connected to the driving end of the unloading moving part 510. The unloading adsorption part 520 is used to adsorb and release the battery string. The unloading moving part 510 is used to drive the unloading adsorption part 520 to move, so as to complete the unloading of the battery string on the supporting mechanism 100 ((pallet 111). In a specific implementation, the unloading moving part 510 can be a first sliding component provided on one side of the unloading station 6. The first sliding component has a certain height and can slide along the first direction, and a second sliding component can also be configured on the first sliding component. The second sliding component can move perpendicular to the first direction in the plane above the pallet 111. The unloading adsorption part 520 can be a suction cup, which can be installed on the first sliding component or the second sliding component according to the needs of the working scenario.

[0127] In some examples, the blanking mechanism 500 is further configured with a crimping member connected to the drive end of the blanking moving member 510. The crimping member can be a pressure plate, which is integrally provided with the adsorption member 520. The pressure plate is provided with adsorption holes. The adsorption holes on the pressure plate can not only adsorb the battery string, but also further compress the adhesive film 1, solder ribbon, and battery cells on the battery string to make them more tightly connected. The pressure plate can also be spaced apart from the adsorption member 520, with the pressure plate used to compress the battery cells, and the adsorption member 520 used to adsorb the battery string. Without being limited to the above, any specific implementation structure of the crimping member can be selected as long as it can generate a certain amount of pressure to further compress the battery string to be blanked.

[0128] The above describes the cell stringing device provided in the embodiment of the present application. In addition to the supporting mechanism 100 and the film feeding mechanism 600, other mechanisms may be configured according to the requirements of the operation scenario. It is understood that the cell stringing device is not limited to the stringing mechanism 400 and the unloading mechanism 500 specifically described above. Any mechanism related to the movement and transportation of the adhesive film 1, the movement and transportation of the welding ribbon assembly 2, the movement and transportation of the cell assembly 3 and the stringing operation, and the movement and transportation of the battery string can be configured in the cell stringing device.

[0129] In one implementation, the film supply mechanism 600 includes a moving device and a film transport device. The moving device is used to drive the film transport device to move, and the film transport device is used to absorb and release the film. The moving device is composed of a motor and corresponding guide rails. The film transport device can be composed of a suction cup or a clamping claw that holds the film.

[0130] In the above description of this application, unless otherwise expressly specified or limited, terms such as "fixed," "mounted," "connected," or "connected" should be understood in a broad sense. For example, with respect to the term "connected," it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two elements or an interaction between two elements. Therefore, unless otherwise expressly specified in this application, those skilled in the art can understand the specific meanings of the above terms in this application based on the specific circumstances.

[0131] According to the above description of the present application, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate orientation or position relationships, are based on the orientation or position relationships shown in the drawings of the present application, and are only for the purpose of facilitating the explanation of the scheme of the present application and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the present application.

[0132] In addition, the terms "first" or "second" used in this application to refer to numbers or ordinal numbers are used for descriptive purposes only and should not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0133] Although multiple embodiments of the present application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art can conceive of many changes, modifications, and alternatives without departing from the thought and spirit of the present application. It should be understood that in the process of practicing the present application, various alternatives to the embodiments of the present application described herein can be adopted. The accompanying claims are intended to define the scope of protection of the present application and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A battery cell series connection device, characterized in that: The battery cell series connection device includes: A carrying mechanism, comprising a support plate and a heating assembly mounted below a supporting surface of the support plate, wherein the support plate reciprocates along a first direction and sequentially passes through a loading station and an unloading station, wherein the support plate is used to carry an adhesive film and to carry and fix a welding ribbon group extending along the first direction and a battery cell group laid on the welding ribbon group, and wherein the heating assembly is used to heat the adhesive film, the welding ribbon group, and the battery cell group; and The film feeding mechanism is arranged adjacent to the unloading station, and after the support plate moves to the unloading station and completes unloading, the film feeding mechanism transfers the prefabricated adhesive film to the support plate, and the adhesive film releases its viscosity after being heated by the heating component.

2. The battery cell series connection device according to claim 1, characterized in that: The battery cell serial connection device further includes a serial connection mechanism, a serial connection station is provided between the loading station and the unloading station, and the serial connection mechanism is provided at the serial connection station. The serial connection mechanism includes at least a moving part and a pressing part, and the pressing part is installed at the driving end of the moving part. The moving part is used to drive the pressing part to press the adhesive film, welding ribbon group and battery cell group placed on the support plate to complete the serial connection of the adhesive film, welding ribbon group and battery cell group.

3. The battery cell series connection device according to claim 2, characterized in that: The serial connection device further includes a heating component, which is connected to the moving component and is arranged above the pressing component. The heating component is used to heat the adhesive film, the welding ribbon group and the battery cell group placed on the support plate for serial connection; Alternatively, the heating component is arranged inside the pressing component, and the heating component heats the pressing component, and the pressing component is used to heat the adhesive film, the welding ribbon group and the battery cell group placed on the support plate in series.

4. The battery cell series connection device according to claim 1, wherein: The battery cell string connection device also includes a unloading mechanism located at the unloading station, the unloading mechanism includes an unloading moving part and an unloading adsorption part, the unloading adsorption part is connected to the driving end of the unloading moving part, the unloading adsorption part is used to adsorb or release the battery string, and the unloading moving part is used to drive the unloading adsorption part to move to complete the unloading of the battery string on the pallet.

5. The battery cell series connection device according to claim 4, characterized in that: The blanking mechanism further includes a pressing piece connected to a driving end of the blanking moving component, and the pressing piece is used to further press the battery string to be blanked.

6. The battery cell series connection device according to claim 1, characterized in that: The adhesive film provided by the film supply mechanism includes multiple spaced film segments, the welding tape group placed on the pallet is located on the film segments, and each film segment supports at least one battery cell in the battery cell group; or, the adhesive film provided by the film supply mechanism includes a continuous film strip, the welding tape group placed on the pallet is located on the film strip, and the film strip supports all battery cells in the battery cell group.

7. The battery cell series connection device according to claim 1, characterized in that: The battery cell series connection device includes two supporting mechanisms arranged in parallel, and the two supporting mechanisms are located on the same side of the film supply mechanism.

8. The battery cell series connection device according to claim 7, characterized in that: The carrying mechanism further comprises: A first guide member extending along a first direction and sequentially passing through a loading station and an unloading station, the support plate being slidably disposed on the first guide member; and The first driving mechanism drives the supporting plate to move back and forth along the first direction on the first guide component.

9. The battery cell series connection device according to claim 8, characterized in that: The carrying mechanism further comprises: The first slide is slidably arranged on the first guide component and supports the supporting plate. The first slide is driven by the first driving mechanism to move along the first direction on the first guide component.

10. The battery cell series connection device according to claim 9, characterized in that: The first slide is provided with a second guide component extending along a second direction, and the second direction is perpendicular to the first direction on a horizontal plane. The supporting mechanism also includes a second slide and a second driving mechanism. The second slide is slidably arranged on the second guide component, and the second driving mechanism drives the second slide to move along the second direction on the second guide component.

11. The battery cell series connection device according to claim 1, wherein: The carrying mechanism further includes an adsorption component, which includes a vacuum generator and adsorption holes provided on the supporting plate. The adsorption holes are connected to the vacuum generator to adsorb the adhesive film.

12. The battery cell series connection device according to claim 1, wherein: The battery cell series connection device further includes: A welding ribbon transport mechanism is provided adjacent to one side of the loading station and is used to transport the welding ribbon group to the support plate at the loading station; A cell transport mechanism is provided adjacent to the other side of the loading station, and is used to transport the cell group to the pallet at the loading station and stack it on the welding ribbon group; The discharge conveying mechanism is arranged adjacent to the unloading station, and the discharge conveying mechanism and the film supply mechanism are arranged on both sides of the unloading station opposite to each other.

13. The battery cell series connection device according to claim 7, wherein: The support plates of the two supporting mechanisms meet the following forms: The positions of the two support plates of the supporting mechanism at the loading station are the same or different; and / or, The positions of the support plates of the two supporting mechanisms at the serial connection station are the same or different; and / or, The positions of the two support plates of the supporting mechanism at the blanking station are the same or different; and / or, The positions of the supporting plates of the two supporting mechanisms when receiving the adhesive film are the same or different.

14. The battery cell series connection device according to claim 7, wherein: The support plate of one of the carrying mechanisms is arranged close to the film feeding mechanism, and the support plate of the other carrying mechanism is arranged away from the film feeding mechanism. The support plate of the carrying mechanism arranged away from the film feeding mechanism is configured to be able to move close to the film feeding mechanism to receive materials.