Battery piece series connection device

By setting up a membrane supply mechanism at the cutting station and using pallets and heating components to release viscosity of the film, the problem of large space and interference in the prior art is solved, and the quality and working efficiency of cell series welding are improved.

CN222190771UActive Publication Date: 2024-12-17WUXI AUTOWELL TECH
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Patent Information

Application Number
CN202420641976.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-31
Publication Date
2024-12-17
Estimated Expiration
2034-03-31

AI Technical Summary

Technical Problem

In the existing cell series welding process, the membrane supply mechanism is usually arranged at the feeding station, which occupies a large space and is easy to interfere with other mechanisms, resulting in an extended working cycle.

Method used

Set up a membrane supply mechanism near the discharge station, use pallets and heating components to transfer the prefabricated adhesive film to the welding tape set and battery cell set, and release the adhesive film through heating to ensure the adhesive positioning of the welding tape and avoid the need for protection. Interfere with other institutions and improve the pace of operation.

Benefits of technology

By setting up a film supply mechanism at the discharge station, efficient feeding of the adhesive film is achieved, interference with other mechanisms is avoided, and the quality and operating efficiency of battery string welding are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model 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 belongs to the field of solar cells, and in particular to the field of cell string manufacturing. In particular, the present application relates to a cell string connection device. Background Art

[0002] The battery string is formed by stacking the welding ribbon and the battery cells in a predetermined order, and welding the welding ribbon to the battery cells. A common welding process for battery cell string welding is to use a conveyor belt to receive the battery cell group and welding ribbon group at the loading station, move the battery cell group and welding ribbon group to be welded to the welding station, and then move the welded battery string to the unloading station. In order to form a stable support and positioning, a layer of adhesive film is laid on the conveyor belt before receiving the battery cell group and welding ribbon group, and the welding ribbon is adhered and positioned by the adhesive film.

[0003] This type of battery cell string welding process usually requires a film supply mechanism to be set up at the loading station, and before the battery cell group and the welding ribbon group are transferred to the conveyor belt, the film supply mechanism is used to supply adhesive film to the conveyor belt. However, setting up a film supply mechanism at the loading station will take up a large space, and the film supply mechanism is easy to interfere with other mechanisms such as the welding ribbon conveying mechanism and the battery cell conveying mechanism near the loading station, making the film coating and feeding operations extremely inconvenient, thereby prolonging the operation cycle of the battery cell string welding. Utility Model Content

[0004] The example of the present application provides a battery cell stringing device, which has a film supply mechanism arranged near the unloading station to facilitate the transfer and supply of the adhesive film, and will not interfere with other mechanisms such as the solder strip 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 contents.

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

[0007] The bearing mechanism includes a support plate and a heating component installed below the support plate bearing surface. The support plate reciprocates along a first direction and passes through a loading station and an unloading station in sequence. 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. The heating component is used to heat the adhesive film, the welding ribbon group and the battery cell group; and,

[0008] The film supply mechanism is arranged adjacent to the unloading station, and after the support plate moves to the unloading station and completes unloading, the film supply 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 bearing 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 and position the solder ribbon, which improves the quality of the battery string formed by the series connection of the solder ribbon group and the battery cell group. In addition, a 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 operating 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 pallet to complete the stringing of the adhesive film, solder ribbon group and battery cell group.

[0011] In this embodiment, the pressing component in the series 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 series connection of the adhesive film, solder ribbon group and battery cells and further improving the series 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 the heating component is arranged above the pressing component, and the heating component is used to heat and connect the adhesive film, the welding ribbon group and the battery cell group placed on the pallet. In other examples, 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 and connect the adhesive film, the welding ribbon group and the battery cell group placed on the pallet.

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

[0014] According to some examples of the present application, the battery cell stringing device also includes a unloading mechanism located at the unloading station, the unloading mechanism includes an unloading moving component and an unloading adsorption component, the unloading adsorption component is connected to the driving end of the unloading moving component, the unloading adsorption component is used to adsorb or release the battery string, and the unloading moving component is used to drive the unloading adsorption component 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 and unload the battery string from the pallet at the unloading station, and mechanical damage can be avoided by adsorbing the battery string through the adsorption component.

[0016] According to some examples of the present application, the blanking mechanism further includes a crimping piece, which is connected to a driving end of the blanking moving component, and 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 film segments, the welding ribbon group placed on the support plate is located on the film segments, and each film segment receives 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 strip group placed on the pallet is located on the film strip, and the film strip supports all the 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 two pallets reciprocate along the first direction on their respective first guide components, so that they rotate in various workstations in turn, and the loading, serial connection, unloading and film supply mechanisms coat the pallets in turn, thereby improving the working efficiency.

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

[0025] A first guide component extends along a first direction and passes through a loading station and an unloading station in sequence, and the support plate is slidably disposed on the first guide component; and

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

[0027] The first driving mechanism drives the pallet to reciprocate on the first guide component extending along the first direction, so that the pallet can circulate in various workstations. This matching structure has simple construction, strong durability and convenient maintenance.

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

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

[0030] A sliding fit relationship with the first guide component is established by a separately configured first slide seat to support 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 in 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 seat to slide on the second guide component, so as to adjust the position of the support 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 welding 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 solder strip transport mechanism is arranged on one side adjacent to the loading station and is used to transport the solder strip group to the pallet at the loading station;

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

[0040] In one implementation, the battery cell transport mechanism includes a battery cell moving device and a suction cup, which 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 material discharging and conveying mechanism is arranged adjacent to the material discharging station, and the material discharging and conveying mechanism and the film supply mechanism are arranged oppositely on two sides of the material discharging station.

[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 pallets of the two supporting mechanisms at the loading station, the serial connection station, the unloading station, and the position of the pallets when receiving the film meet different forms.

[0045] In particular, according to some examples of the present application, the positions of the two pallets at the loading stations are the same or different. When the two pallets move back and forth and have loading stations at different positions, the two bearing mechanisms are more independent. The loading stations with the same position help to reduce the burden on the battery cell handling mechanism and the solder strip handling mechanism, and can avoid affecting the movement accuracy of the battery cell handling mechanism and the solder strip handling mechanism, and can reduce and simplify the movement of the solder strip group handling mechanism and the battery cell group handling mechanism.

[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 are reciprocating, their respective connection positions are independent of each other, which can avoid interference during the connection operation. When the two pallets are in the same position at the connection position, the movement of the connection mechanism can be simplified to avoid affecting the movement accuracy.

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

[0049] When the two pallets move back and forth, their respective unloading stations are located at the same position, 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 supply mechanism and its movement, while the different positions help to enhance the independence of the film supply operation of the two pallets.

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

[0053] This can reduce and simplify the film supply mechanism and its movement amount, and move another support plate to a position close to the film supply 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 circulation of the carrying mechanism at each workstation during the operation of the battery string welding machine provided in an embodiment of the present application;

[0057] Figure 4 A schematic diagram of the structure 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 support mechanism provided in an embodiment of the present application;

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

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

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

[0063] Fig.10 Another schematic diagram of the circulation of the carrying mechanism at each workstation during the operation of the battery string welding machine provided in the embodiment of the present application;

[0064] Fig.11 A schematic diagram of the circulation of the carrying mechanism at each workstation during the operation of the battery string welding machine provided in an embodiment of the present application;

[0065] Fig.12 A schematic diagram of the structure of a welding mechanism provided in an embodiment of the present application.

[0066] Description of reference numerals:

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

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

[0069] 110, first bearing mechanism; 120, second bearing 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 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 described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0080] At present, when stringing cells, a conveyor belt is used to cross the loading station, welding station and unloading station to receive and convey the welding belt group and cell group, and a film supply mechanism is usually set at the loading station to provide adhesive film to the conveyor belt before the cell group and welding belt group are transferred to the conveyor belt. However, this spatial layout method occupies a large space, and interference is easy to occur between the mechanisms near the loading station.

[0081] The present application proposes a new battery cell stringing device, which has a film supply mechanism arranged near the unloading station to facilitate the transfer and supply of the adhesive film, and will not interfere with other mechanisms such as the solder strip conveying mechanism and the battery cell conveying mechanism, thereby helping to maintain a high operating 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 series connection device includes: a carrying mechanism 100, a solder strip conveying mechanism 200, a battery cell conveying mechanism 300, a series 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 carrier mechanism 100 can be one or two parallel carrier mechanisms (as shown in the figure, a first carrier mechanism 110 and a second carrier mechanism 120 parallel to each other). Relatively speaking, when two carrier mechanisms 100 are arranged in parallel, the first carrier mechanism 110 and the second carrier mechanism 120 can move back and forth along 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 carrier 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 conveying mechanism 200 is disposed adjacent to one side of the loading station 4 , and is used to convey the solder ribbon set 2 to the support plate 111 at the loading station 4 .

[0085] In this example, the battery cell transport mechanism 300 is disposed adjacent to the other side of the loading station 4 , and is used to transport the battery 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 serial connection mechanism 400 is disposed adjacent to the serial connection station 5, and when the soldering ribbon group 2 and the battery cell group 3 are transported to the serial connection station 5 by the pallet 111, the serial connection mechanism 400 presses the battery cell group 3 and the soldering ribbon group 2 to realize serial connection to form a battery string.

[0087] In this example, the unloading mechanism 500 is disposed 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 supply 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 supply 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 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 flow of the carrying mechanism 110 in each station is as follows: When the carrying mechanism 110 is in the loading station 4, the support plate 111 receives the welding ribbon group 2 and the battery cell group 3. When in the serial connection station 5, it stays for a certain period of time for the welding ribbon group 2 and the battery cell group 3 to complete the serial connection here. At the unloading station 6, the battery string formed by the serial connection of the welding ribbon group 2 and the battery cell group 3 is picked up by the unloading mechanism 500 and transported to the unloading conveying mechanism 700, and the unloading conveying mechanism 700 conveys the battery string to the next process. After the battery string is unloaded from the support plate 111, the film supply mechanism 600 transfers the prefabricated adhesive film 1 to the support plate 111 located at the unloading station 6, and the adhesive film 1 is heated by the heating component 115 to release the 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 transfer of materials 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 supply mechanism 600 is arranged near the unloading station 6 to facilitate the transfer and supply of the adhesive film 1, and will not interfere with other mechanisms such as the solder tape conveying mechanism 200 and the battery cell conveying mechanism 300, thereby helping to maintain a high operating rhythm.

[0093] In combination with the foregoing description, in summary, a battery cell series connection 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 reciprocates along a first direction and passes through a loading station 4 and an unloading station 6 in sequence, the support plate 111 is used to carry an adhesive film 1 and carry and fix a welding ribbon group 2 extending along a first direction and a 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 heat-generating plate structure or a mesh structure, or the heating component can be a heating rod, or can be a heating mesh composed of heating wires or ; The heating component can be directly arranged inside the pallet 111, or it can be 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 tape group 2 and the battery cell group 3; and the film supply mechanism 600 is arranged near the unloading station 6, and after the pallet 111 moves to the unloading station 6 and completes the unloading, the film supply mechanism 600 transfers the prefabricated adhesive film 1 to the pallet 111, and the adhesive film 1 is heated by the heating component 115 on the pallet 111 and releases its viscosity. Therefore, when the pallet 1 moves to the loading station 4 to receive the welding tape group 2 and the battery cell group 3, the viscosity of the adhesive film 1 can adhere and position the welding tape, which helps to ensure the quality of the battery string formed by connecting the welding tape group 2 and the battery cell group 3 in series.

[0094] In specific implementation, the battery cell series connection device provided in the embodiment of the present application is preferably configured with two supporting mechanisms 100, the two supporting mechanisms 100 are arranged in parallel (as shown in the figure, the first supporting mechanism 110 and the 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 series 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 bearing mechanism 100 includes a first guide component 112a, a support plate 111 slidably arranged on the first guide component 112a, and a first driving mechanism 112c that provides a driving force to drive the support plate 111 to slide on the first guide component 112a. The first guide component 112a extends along the first direction and passes through the loading station 4, the serial connection station 5 and the unloading station 6 in sequence. The support plate 111 is used to carry the welding ribbon group 2 extending along the first direction and the battery cell group 3 laid on the welding ribbon group 2. The welding ribbon group 2 and the battery cell group 3 are fixed and transported by the support plate 111. As mentioned above, the first driving mechanism 112c drives the support plate 111 to reciprocate along the first direction on the first guide component 112a. Therefore, the support plate 111 can carry the welding ribbon group 2 and the battery cell group 3 or pass through the loading station 4, the serial connection station 5 and the unloading station 6 in sequence without load. This matching structure is simple in structure, strong in durability, easy to maintain, and not prone to problems such as looseness, 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 supporting mechanisms 100 arranged in parallel can be understood as two first guide members 112a arranged in parallel, and the first driving mechanism 112c drives the corresponding pallets 111 to slide on their respective first guide members 112a. The two pallets 111 reciprocate along the first direction on their respective first guide members 112a, so as to circulate in each station in turn, shortening the conveying time of materials in the loading station 4, the serial connection station 5 and the unloading station 6, and improving the processing efficiency.

[0099] It is understandable that if Figure 3 As shown, when the two pallets 111 reciprocate 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 bearing mechanism 100 is configured with a mechanism for realizing the reciprocating movement of the pallet 111 in the first dimension (first direction). In an implementation example, the bearing mechanism 100 is configured with a first slide 112b that is relatively independent of the pallet 111, and the relatively independent feature can be realized by the detachable installation and matching relationship between the pallet 111 and the first slide 112b. The first slide 112b forms a sliding match with the first guide member 112a, and the first slide 112b also forms a fixed support for the pallet 111. This detachable installation and matching structure facilitates independent maintenance of each component. Specifically, the bearing mechanism 100 also includes a first slide 112b, which is slidably arranged on the first guide member 112a, and the first slide 112b is used to support and fix the pallet 111, and 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 reciprocates with the pallet 111 on the first guide member 112a. In a 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, and 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 provided with a mechanism for realizing the reciprocating movement of the pallet 111 in the second dimension (second direction). In one implementation example, the supporting mechanism 100 also includes a second guide component 113a, a second slide 113b and a second driving mechanism 113c, and the second guide component 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 component 113a is arranged on the first slide 112b and extends along the second direction, and the second direction is perpendicular to the first direction in the horizontal plane, the second slide 113b is arranged on the second guide component 113a and forms a sliding fit with the second guide portion 113a, and the support plate 111 is supported and fixed by the second slide 113, and the second driving mechanism 113c provides a driving force to drive the second slide 113b to slide on the second guide component 113a. It can be understood that this kind of sliding is the movement of the second slide 113b along the extension direction of the second guide component 113a (i.e., 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. The position of the pallet 111 can be adjusted in another dimension (second direction) by driving the second slide 113b to slide on the second guide component 113a using the second driving mechanism 113c.

[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] Exemplary, 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 provided with a ratchet 113e, the rack 113f is arranged on the first slide 112b, and the rack 113f extends along the second direction (perpendicular to the first direction), the rack 113f and the ratchet 113e form a match, and the motor 113d drives the ratchet 113e to rotate, that is, through the match between the rack 113f and the ratchet 113e, the second slide 113b is realized to slide along the second direction (perpendicular to the first direction). It can be understood that, not limited to the matching 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 be applied to the present application.

[0104] Reference Figure 6 and Figure 7 As shown, in an 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 arranged 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 implementation example, 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 Fig. 9 As shown, exemplarily, the regularization component 116 includes a support 116a, a bottom plate 116b disposed on the support 116a, and a plurality of support plates 116c, wherein the plurality of support plates 116c are all mounted on the bottom plate 116b. Specifically, the support plates 116c may have a relatively thin thickness, and the plate surface is vertically mounted on the bottom plate 116b, and the plate surfaces of adjacent support plates 116c are spaced apart along the first direction. Wherein: a lifting drive mechanism 117 and a position adjustment drive mechanism 118 are disposed on the support 116a, the bottom plate 116b may be adjusted in height by the lifting drive mechanism 117, and may be adjusted in position perpendicular to the first direction by the position adjustment drive mechanism 118, and one side of each support plate 116c is fixed on the bottom plate 116b, and a row of regularization pieces 116d is formed on the other opposite side. The regular piece 116d can be a block, a strip or other protruding 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 can extend from the avoidance opening 111a and touch 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 battery string welding.

[0107] Reference Fig. 9As shown, for example, in order to ensure that the position of the solder strip is adjusted within the range of movement of the regulating piece 116d, and to prevent the solder strip from deviating due to inertial and unrestricted movement, each regulating piece 116d is provided with a groove 116e, which is used to accommodate the solder strip when the regulating piece 116d extends out of the opening 111a. The groove 116e accommodates the solder strip, and the regulating piece 116d can be driven to adjust the position of the solder strip. In this example, the solder strip accommodated in the groove 116e always moves with the regulating piece 116d, and the movement range is controlled, so as to achieve 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 arranged on the base plate 116b, and a driving wheel arranged on the support 116a. The ball screw includes a ball nut and a screw rod matched with the ball nut. The ball nut is mounted on the support 116a. One end of the screw rod passing through the ball nut is connected to the mounting portion by threaded engagement, and the other end is equipped with a driven wheel. 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 regular piece 116d to move in a direction perpendicular to the first direction. After the welding strip is placed on the support plate 111, the position can be adjusted along with the movement of the regular piece 116d.

[0109] Reference Figure 8 As shown, as an implementation example 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 outside 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 greater than the second inner diameter. The cam can be driven to rotate eccentrically, and the cam does not touch the inner peripheral wall of the ring in the horizontal direction when rotating in the horizontal direction, and the eccentric rotation of the cam causes the ring to be displaced in the vertical direction and then adjusts the height of the bottom plate 116b, thereby prompting the regular piece 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 regulating piece 116d extends from the avoidance opening 111a, thereby touching the welding strip on the support plate 111 and realizing the 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 regulating piece 116d is lowered to 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. Figure 10 to Figure 11 And refer to Figures 1 to 4 Some embodiments of the battery stringer are further described.

[0111] Combination Fig.10 and Fig.11 As shown, in some embodiments, the two pallets 111 have the same loading station 4 when reciprocating, which reduces the burden on the cell conveying mechanism 300 and the solder strip conveying mechanism 200, and can avoid affecting the movement accuracy of the cell conveying mechanism 300 and the solder strip conveying mechanism 200. In this way, the spatial arrangement structure of the solder strip group conveying mechanism 200 and the cell conveying mechanism 300 can also be reduced and simplified.

[0112] Combination Fig.10 and Fig.11 As shown, in some embodiments, the positions of the two pallets 111 at the serial connection station 5 are independent of each other to avoid interference during the serial connection operation. That is, the two pallets 111 are serially connected at different positions, and the serial connection device can automatically adjust the position to complete the serial connection of the adhesive film 1, the welding ribbon group 2 and the battery cell group 3 carried by the two pallets 111 at different positions. The positions of the two pallets 111 at the serial connection station 5 can also be configured to be the same, thereby simplifying the movement amount of the serial connection mechanism 400.

[0113] Combination Fig.10 As shown, in one embodiment, the positions of the two pallets 111 at the unloading station 6 are independent of each other. Fig.11 As shown, in another embodiment, the two pallets 111 have unloading stations 6 at the same position when they move back and forth, so that the number of unloading mechanisms 500 and the movement amount of the unloading mechanisms 500 can be reduced and simplified.

[0114] Combination Fig.10 and Fig.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 interference between the two pallets 111 in space 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] Combination Fig.10As shown, in some embodiments, the support plate 111 of the first supporting mechanism 110 is arranged close to the film supply mechanism 600, and the support plate 11 of the second supporting mechanism 120 is arranged relatively far away from the film supply 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 supply mechanism 600 and receive the adhesive film 1 at this position, which can reduce the moving distance of the adhesive film 1 and improve the feeding efficiency of the adhesive 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 Fig.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 Fig.11 As shown, the adhesive film 1 includes multiple spaced-apart segments of membrane 1b, the welding strip group 2 placed on the support plate 111 is located on the membrane 1b, and each segment of the membrane 1b receives at least one battery cell in the battery cell group 3. Therefore, the membrane 1b is flexible to adapt and its size can be adjusted according to the number of battery cells that need to be received.

[0120] In one implementation, each section of the membrane 1b can carry 2 cells, 3 cells, 4 cells, 5 cells, 6 cells, etc. The length of the membrane 1b is approximately equal to the sum of the lengths of the carried 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 discharging conveying mechanism 700 described above according to the requirements of the working scene.

[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 Fig.12As shown, a serial connection station 5 is arranged between the loading station 4 and the unloading station 6. In one implementation, the loading station 4 is arranged near the head end of the first guide member 112a, the serial connection station 5 is arranged near the middle of the first guide member 112a, and the unloading station 6 is arranged near the tail of the first guide member 112a. Since the second guide member 113a and the first guide member 112a are arranged in parallel, the above station arrangement is also applicable to the second guide member 113a, which will not be repeated here. The serial connection mechanism 400 is arranged at the serial connection station 5, and the serial connection mechanism 400 at least includes a moving member and a clamping member 450. The clamping 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 preset 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 movable components are provided to realize that the serial connection device is compatible with the serial connection of the adhesive film, the welding ribbon group and the battery cell group on the support plate 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 realize vertical lifting, and during the serial connection operation, the clamping component 450 is used to clamp the battery cell group 3 and the welding ribbon group 2 to realize 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 pressing pin, which can be installed on the pressing 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 clamping component 450. The clamping component 450 can be a plate-like structure. The heating component 460 heats the clamping component 450, and the clamping component 450 is used to heat the adhesive film 1, the welding ribbon group 2 and the battery cell group 3 placed on the tray 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, and 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 specific implementation, the unloading moving part 510 can be a first sliding component arranged on one side of the unloading station 6, the first sliding component has a certain height and can slide along the first direction, and the first sliding component can also be configured with a second sliding component, and 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 scene.

[0127] In some examples, the unloading mechanism 500 is also equipped with a crimping piece, which is connected to the driving end of the unloading moving part 510. The crimping piece can be a pressing plate, and the pressing plate and the adsorption part 520 are integrated. The pressing plate is provided with adsorption holes. The adsorption holes on the pressing plate can not only adsorb the battery string, but also further press the adhesive film 1, the welding strip and the battery cell on the battery string to make it more tightly connected. The pressing plate can also be spaced apart from the adsorption part 520, the pressing plate is used to press the battery cell, and the adsorption part 520 is used to adsorb the battery string. Not limited to the above, as long as it can generate a certain pressure to further press the battery string to be unloaded, it can be selected as the specific implementation structure of the crimping piece.

[0128] The above describes the battery cell series connection device provided by the embodiment of the present application. In addition to the supporting mechanism 100 and the film supply mechanism 600, other mechanisms can also be configured according to the requirements of the operation scene. It can be understood that it is not limited to the series connection mechanism 400 and the unloading mechanism 500 specifically described above. As long as the mechanism related to the movement and transportation of the adhesive film 1, the movement and transportation of the welding ribbon group 2, the movement and transportation of the battery cell group 3 and the series connection operation, and the movement and transportation of the battery string can be configured in the battery cell series connection device.

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

[0130] In the above description of the present application, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" and the like should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in the present application, those skilled in the art can understand the specific meanings of the above terms in the present application according to 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 positional relationships, are based on the orientation or positional 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 device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional 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 ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Thus, 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 is obvious to those skilled in the art that such embodiments are provided only by way of example. Those skilled in the art can think 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 attached claims are intended to limit 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 comprises: A bearing mechanism, comprising a support plate and a heating assembly installed below the support plate bearing surface, wherein the support plate reciprocates along a first direction and passes through a loading station and an unloading station in sequence, wherein the support plate is used to bear an adhesive film and bear 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 supply mechanism is arranged adjacent to the unloading station, and after the support plate moves to the unloading station and completes unloading, the film supply 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 series connection device further includes a series connection mechanism, a series connection station is provided between the loading station and the unloading station, and the series connection mechanism is provided at the series connection station. The serial connection mechanism at least includes a moving part and a clamping part, wherein the clamping part is installed at the driving end of the moving part, and the moving part is used to drive the clamping 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, and is used to heat and serially connect the adhesive film, the welding ribbon group and the battery cell group placed on the support plate; 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 and connect 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, characterized in that: The battery cell string connection device also includes a unloading mechanism located at the unloading station, the unloading mechanism includes an unloading moving component and an unloading adsorption component, the unloading adsorption component is connected to the driving end of the unloading moving component, the unloading adsorption component is used to adsorb or release the battery string, and the unloading moving component is used to drive the unloading adsorption component 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 material removal mechanism further comprises a crimping piece, which is connected to the driving end of the material removal moving component and is used to further press the battery string to be removed.

6. The battery cell series connection device according to claim 1, characterized in that: The adhesive film provided by the film supply mechanism includes a plurality of 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 comprises 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 also includes: A first guide component extends along a first direction and passes through a loading station and an unloading station in sequence, and the support plate is slidably disposed on the first guide component; and The first driving mechanism drives the support plate to reciprocate 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 also includes: The first slide seat is slidably disposed on the first guide component and supports the support plate, and the first slide seat is driven by the first driving mechanism to move along a 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, characterized in that: The carrying mechanism further comprises an adsorption component, which comprises a vacuum generator and an adsorption hole arranged on the supporting plate, and the adsorption hole is connected to the vacuum generator to adsorb the adhesive film.

12. The battery cell series connection device according to claim 1, characterized in that: The battery cell series connection device further comprises: A solder strip transport mechanism is disposed adjacent to one side of the loading station and is used to transport the solder strip group to a 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 material discharging and conveying mechanism is arranged adjacent to the material discharging station, and the material discharging and conveying mechanism and the film supply mechanism are arranged oppositely on two sides of the material discharging station.

13. The battery cell series connection device according to claim 7, characterized in that: The support plates of the two supporting mechanisms satisfy the following form: 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 unloading station are the same or different; and / or, The positions of the supporting plates of the two bearing mechanisms when receiving the adhesive film are the same or different.

14. The battery cell series connection device according to claim 7, characterized in that: The support plate of one of the carrying mechanisms is arranged close to the film supply mechanism, and the support plate of the other carrying mechanism is arranged away from the film supply mechanism. The support plate 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 materials.