Battery pack manufacturing method, electronic device, and computer-readable storage medium

Abstract

The application discloses a battery pack manufacturing method, an electronic device and a computer readable storage medium, relates to the technical field of battery production, and comprises the following steps: first, controlling a first conveying module to convey a material carrying disc to one side of an end plate combination module, controlling the end plate combination module to fix an end plate on the side surface of a first hard battery module to obtain a second hard battery module, controlling a second mechanical hand module to carry a battery shell to the second conveying module, controlling the second conveying module to convey the battery shell to one side of a gluing module, controlling an assembling module to install the second hard battery module on the first conveying module on the battery shell to obtain a third hard battery module; then, controlling the second conveying module to convey the third hard battery module to one side of a welding module; and controlling the welding module to perform welding treatment on the third hard battery module to obtain a hard battery pack. The application realizes the automatic production of the hard battery pack, does not need to use manual work, and can improve the production efficiency.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a battery pack manufacturing method, electronic device, and computer-readable storage medium. Background Technology

[0002] In related technologies, with the development of the new energy and automotive industries, the demand for battery packs is increasing. For example, the power battery pack, as the core energy storage unit of electric vehicles, plays a crucial role. It is mainly responsible for storing and providing electrical energy to drive the electric motor, thereby enabling the vehicle to move. Battery packs are generally divided into rigid battery packs and flexible battery packs. Because the outer shell of a rigid battery pack is made of metal or other hard materials, it provides good mechanical strength and structural protection, effectively resisting external impacts and compression. Therefore, it has gained widespread recognition and favor in the fields of new energy vehicles and energy storage. In related technologies, multiple rigid battery cells are manually combined to form a rigid battery module, and then the end plate, outer shell, and rigid battery module are manually installed and assembled to form a rigid battery pack, which is very inefficient. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a battery pack manufacturing method, electronic device, and computer-readable storage medium, which can realize the automated production of rigid battery packs and improve production efficiency.

[0004] According to a first aspect of this application, a battery pack manufacturing method is applied to a battery pack manufacturing equipment. The battery pack manufacturing equipment includes a first transport module, a material carrier plate, an end plate assembly module, a second transport module, a second robotic arm module, an adhesive application module, an assembly module, and a welding module. The material carrier plate is movably mounted on the first transport module. The second robotic arm module, the adhesive application module, the assembly module, and the welding module are sequentially arranged on one side of the second transport module along a second length direction.

[0005] The method includes:

[0006] The first transport module is controlled to transport the material carrier tray to one side of the end plate assembly module; wherein, a first rigid battery module is placed on the material carrier tray, and the first rigid battery module includes multiple rigid battery cells;

[0007] The end plate assembly module is controlled to fix the end plate to the side of the first rigid battery module to obtain the second rigid battery module.

[0008] The second robotic arm module is controlled to move the battery casing onto the second transport module;

[0009] The second transport module is controlled to transport the battery casing to one side of the adhesive coating module;

[0010] The adhesive application module is controlled to apply adhesive to the battery casing.

[0011] The second transport module is controlled to transport the battery casing to one side of the assembly module;

[0012] The assembly module is controlled to install the second rigid battery module located on the first transport module onto the battery casing to obtain the third rigid battery module;

[0013] The second transport module is controlled to transport the third rigid battery module to one side of the welding module;

[0014] The welding module is controlled to perform welding processing on the third rigid battery module to obtain a rigid battery pack.

[0015] The battery pack manufacturing method according to the embodiments of this application has at least the following beneficial effects: The battery pack manufacturing method of this application is applied to a battery pack manufacturing equipment. During execution, the method first controls a first transport module to transport the material carrier tray to one side of the end plate assembly module. Then, it controls the end plate assembly module to fix the end plate to the side of the first rigid battery module, obtaining a second rigid battery module. A second robotic arm module is then controlled to transport the battery casing to the second transport module. The second transport module then transports the battery casing to one side of the adhesive coating module. An assembly module is then controlled to install the second rigid battery module located on the first transport module onto the battery casing, obtaining a third rigid battery module. Next, the second transport module transports the third rigid battery module to one side of the welding module. The welding module then performs welding on the third rigid battery module, obtaining a rigid battery pack. Thus, this application achieves automated production of rigid battery packs without the need for manual labor, thereby improving production efficiency.

[0016] According to some embodiments of the first aspect of this application, the battery pack manufacturing equipment further includes a first robotic arm module, an adhesive application module, and a stacking module. The first robotic arm module, the adhesive application module, the stacking module, and the end plate assembly module are sequentially arranged on one side of the first computing module along the first length direction of the first transport module; the material carrying tray is used to place the rigid battery cell.

[0017] Before the first transport module is controlled to transport the material carrier to one side of the end plate assembly module, the following steps are included:

[0018] When the material carrier plate is adjacent to the first robotic arm module, the first robotic arm module is controlled to transport a preset number of rigid battery cells onto the material carrier plate, and the rigid battery cells are arranged in sequence.

[0019] The first transport module is controlled to transport the material carrier tray to one side of the adhesive application module;

[0020] The adhesive application module is controlled to apply adhesive to the rigid battery cell.

[0021] After the adhesive application is completed, the first transport module is controlled to transport the material carrier tray to one side of the stacking module;

[0022] The stacking module is controlled to stack and combine the various rigid battery cells to obtain the first rigid battery module.

[0023] According to some embodiments of the first aspect of this application, the battery pack manufacturing equipment further includes a flipping module, which is disposed between the first robotic arm module and the adhesive application module. The flipping module includes a first robotic arm unit and a first vision unit; the end face of the rigid battery cell is provided with a positive electrode tab and a negative electrode tab.

[0024] Before the first transport module transports the material carrier to one side of the adhesive application module, the method further includes:

[0025] The first transport module is controlled to transport the material carrier tray to the flipping module, and the first vision unit is controlled to acquire a first image of the material carrier tray.

[0026] Based on the first image, the first robotic arm unit of the flipping module controls the flipping module to flip the rigid battery cell so that the positive tab of any rigid battery cell is adjacent to the negative tab of the adjacent rigid battery cell, and the negative tab of any rigid battery cell is adjacent to the positive tab of the adjacent rigid battery cell.

[0027] According to some embodiments of the first aspect of this application, the end face of the rigid battery cell is further provided with a first marking portion and a second marking portion, the first marking portion surrounding the positive electrode tab and the second marking portion surrounding the negative electrode tab;

[0028] The first robotic arm unit, which controls the flipping module based on the first image, performs a flipping process on the rigid battery cell, including:

[0029] Based on the first image, first position information of the first rigid battery cell is obtained; the first position information includes the position information of the first identification portion and the second identification portion of the first rigid battery cell;

[0030] Based on the first image, the i-th position information of the i-th rigid battery cell is obtained; the i-th position information includes the position information of the first and second identification parts of the i-th rigid battery cell;

[0031] Based on the (i-1)th position information, the i-th position information is detected and processed. When it is detected that the position of the first identifier of the (i-1)th rigid battery cell is adjacent to the position of the first identifier of the i-th rigid battery cell, and the position of the second identifier of the (i-1)th rigid battery cell is adjacent to the position of the second identifier of the i-th rigid battery cell, the first robotic arm unit is controlled to flip the i-th rigid battery cell so that the position of the first identifier of the (i-1)th rigid battery cell is adjacent to the position of the second identifier of the i-th rigid battery cell, and the position of the second identifier of the (i-1)th rigid battery cell is adjacent to the position of the first identifier of the i-th rigid battery cell; where i is 2, 3, ..., N; N is the preset number.

[0032] According to some embodiments of the first aspect of this application, the detection processing of the i-th position information based on the (i-1)-th position information includes:

[0033] Based on the first image, calculate the first distance between the first identification portion of the i-th rigid battery cell and the first identification portion of the (i-1)-th rigid battery cell, and calculate the second distance between the first identification portion of the i-th rigid battery cell and the second identification portion of the (i-1)-th rigid battery cell;

[0034] If the first distance is detected to be less than the second distance, it is determined that the position of the first marking part of the (i-1)th rigid battery cell is adjacent to the position of the first marking part of the i-th rigid battery cell, and the position of the second marking part of the (i-1)th rigid battery cell is adjacent to the position of the second marking part of the i-th rigid battery cell.

[0035] According to some embodiments of the first aspect of this application, before controlling the first vision unit to acquire a first image of the material carrier tray, the method further includes:

[0036] Control the first vision unit to acquire a second image of the material carrier tray;

[0037] Based on the second image, the rigid battery cell is detected. If the first or second marking portion is not located on the end face of the rigid battery cell, the first robotic arm unit is controlled to flip the rigid battery cell so that the first and second marking portions of the rigid battery cell are located on the end face of the rigid battery cell.

[0038] According to some embodiments of the first aspect of this application, the adhesive application module includes a cleaning component, an adhesive application component, and a film removal component, wherein the cleaning component, the adhesive application component, and the film removal component are arranged sequentially.

[0039] The process of controlling the adhesive application module to apply adhesive to the rigid battery cell includes:

[0040] The cleaning assembly is controlled to perform plasma cleaning on the rigid battery cell.

[0041] The first transport module is controlled to transport the material carrier tray to one side of the adhesive application assembly;

[0042] The adhesive application assembly is controlled to apply the adhesive tape to the side of the rigid battery cell;

[0043] The first transport module is controlled to transport the material carrier tray to one side of the film-tearing assembly;

[0044] The film-peeling assembly is controlled to peel off the adhesive tape on the rigid battery cell.

[0045] According to some embodiments of the first aspect of this application, the adhesive application module further includes an adhesive application detection component, which is located between the adhesive application component and the film peeling component; the adhesive application detection component includes a second vision unit, a second robotic arm unit, a defective product placement table, and a good product placement table; qualified rigid battery cells that have passed the adhesive application are placed on the good product placement table.

[0046] Before the first transport module is controlled to transport the material carrier tray to one side of the film-tearing assembly, the method further includes:

[0047] The first transport module is controlled to transport the material carrier tray to one side of the adhesive detection component;

[0048] The second vision unit is controlled to acquire a third image of the rigid battery cell on the material carrier tray;

[0049] The rigid battery cell is subjected to adhesive adhesion detection processing through the third image. If the adhesive adhesion of the rigid battery cell is found to be unqualified, the unqualified rigid battery cell is determined, and the second vision unit is controlled to acquire the fourth image of the unqualified rigid battery cell.

[0050] Based on the fourth image, the non-conforming location information of the non-conforming hard battery cell is obtained. The non-conforming location information includes the sorting information of the non-conforming hard battery cell and the position information of the first and second identification parts of the non-conforming hard battery cell.

[0051] The second robotic arm unit is controlled to transport the non-conforming hard battery cell to the defective product placement platform;

[0052] The second robotic arm unit is controlled to acquire the qualified hard battery cell from the good product placement table, and based on the unqualified position information of the unqualified hard battery cell, the qualified hard battery cell is transported to the material carrier tray, so that the qualified position information of the qualified hard battery cell is the same as the unqualified position information of the unqualified hard battery cell.

[0053] A second aspect of this application provides an electronic device, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the battery pack manufacturing method described in any embodiment of the first aspect of this application.

[0054] A third aspect of this application provides a computer-readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the battery pack manufacturing method described in any embodiment of the first aspect of this application.

[0055] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0056] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0057] Figure 1 This is a simplified structural diagram of a battery pack manufacturing apparatus used to perform the battery pack manufacturing method according to the embodiments of this application;

[0058] Figure 2 This is a schematic flowchart of the battery pack manufacturing method according to an embodiment of this application;

[0059] Figure 3 This is a simplified structural diagram of the adhesive application module according to an embodiment of this application;

[0060] Figure 4 The method in the embodiments of this application is Figure 2 A flowchart illustrating the steps preceding step S206;

[0061] Figure 5 This is a simplified structural diagram of the stacking module according to an embodiment of this application;

[0062] Figure 6 This is a schematic flowchart of another step in the battery pack manufacturing method according to an embodiment of this application;

[0063] Figure 7 for Figure 6 A schematic diagram of the processing steps in step S520;

[0064] Figure 8 for Figure 6 A schematic diagram of a specific process step in step S520;

[0065] Figure 9 for Figure 8 A partial flowchart illustrating step S730;

[0066] Figure 10 This is a schematic diagram of a sub-process of the battery pack manufacturing method according to an embodiment of this application;

[0067] Figure 11 This is a simplified structural diagram of the adhesive application module according to an embodiment of this application;

[0068] Figure 12 for Figure 4 A detailed flowchart of step S203;

[0069] Figure 13 This is a simplified structural diagram of the adhesive application assembly according to an embodiment of this application;

[0070] Figure 14 for Figure 12 A detailed flowchart of step S1130;

[0071] Figure 15 This is a simplified structural diagram of the adhesive detection component according to an embodiment of this application;

[0072] Figure 16 This is a schematic diagram of a sub-process of a battery pack manufacturing method according to another embodiment of this application;

[0073] Figure 17 This is a simplified structural diagram of the film-peeling assembly according to an embodiment of this application;

[0074] Figure 18 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application.

[0075] Figure label:

[0076] First transport module 100;

[0077] Material support tray 200;

[0078] First robotic arm module 300;

[0079] Flip module 400;

[0080] Adhesive application module 500; Cleaning component 510; Adhesive application component 520; First drive unit 5210; Second drive unit 5220; Third drive unit 5230; First clamping unit 5231; First adsorption unit 5240; Second adsorption unit 5250; First tape release unit 5260; Second tape release unit 5270; First tape cutting unit 5280; Second tape cutting unit 5290; Adhesive application detection component 530; Second robotic arm unit 531; Second vision unit 532; Defective product placement table 533; Good product placement table 534; Film peeling component 540; Fourth drive unit 541; Fifth drive unit 542; Sixth drive unit 543; First film peeling unit 544; Second clamping unit 545; Second film peeling unit 546;

[0081] Stacking module 600; stacking stage 610; stacking robot assembly 620; first pusher plate 631; second pusher plate 632; third pusher plate 633; ​​fourth pusher plate 634; drive cylinder 640;

[0082] Hard battery cell 700; First identification part 710; Second identification part 720;

[0083] Endplate assembly module 800;

[0084] Assembly module 900; second transport module 1000; second robotic arm module 1100; glue application module 1200; first spraying unit 1210; second spraying unit 1220; third spraying unit 1230; fourth spraying unit 1240; fifth spraying unit 1250; drive assembly 1260; welding module 1300; battery casing 1400. Detailed Implementation

[0085] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0086] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0087] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0088] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0089] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] Reference Figure 1 , Figure 1This is a simplified structural diagram of a battery pack manufacturing apparatus used to perform the battery pack manufacturing method according to an embodiment of this application. The battery pack manufacturing apparatus includes a first transport module 100, a material carrier tray 200, a first robotic arm module 300, an adhesive application module 500, a stacking module 600, and an end plate assembly module 800. The first robotic arm module 300, the adhesive application module 500, and the stacking module 600 are disposed on one side of the first transport module 100, and are arranged sequentially along a first length direction of the first transport module 100. The material carrier tray 200 is used to place rigid battery cells 700, and the end face of the rigid battery cell 700 is provided with a positive electrode tab and a negative electrode tab. The material carrier tray 200 is movably mounted on the first transport module 100. The first transport module 100 is used to transport the material carrier tray 200. The first robotic arm module 300 is used to transport the rigid battery cell 700 to the material carrier tray 200. The first transport module 100 is used to transport the material carrier tray 200 so that the material carrier tray 200 can move along the first length direction of the first transport module 100, so that different modules can perform different actions on the rigid battery cells 700 on the material carrier tray 200. The adhesive application module 500 is used to apply adhesive to the rigid battery cells 700. After the adhesive application is completed, the stacking module 600 stacks and combines the rigid battery cells 700 to obtain a first rigid battery module. The end plate assembly module 800 is used to fix the end plate to the side of the first rigid battery module to obtain a second rigid battery module. The battery pack manufacturing equipment also includes a second transport module 1000, a second robotic arm module 1100, an adhesive application module 1200, an assembly module 900, and a welding module 1300. The second transport module 1000, the second robotic arm module 1100, the adhesive application module 1200, and the welding module 1300 are sequentially arranged on one side of the second transport module 1000 along the second length direction. The assembly module 900 is located on the other side of the second transport module 1000, and is located between the adhesive application module 1200 and the welding module 1300. The second transport module 1000 is perpendicular to the first transport module, and the assembly module 900 is located between the second transport module 1000 and the first transport module. The second robotic arm module 1100 is used to transport the battery casing 1400 to the second transport module 1000, and the second transport module 1000 is used to drive the battery casing 1400 to transport along the second length direction, so that different modules can perform different actions on the battery casing 1400 located on the second transport module 1000. The adhesive application module 1200 is used to apply adhesive to the battery casing 1400. After the adhesive application is completed on the battery casing 1400, the assembly module 900 is used to install the second rigid battery module located in the first transport module onto the adhesive-coated battery casing 1400, so that the second rigid battery module is fixed to the battery casing 1400 to form a third rigid battery module.The welding module 1300 is used to weld the individual hard cells in the third hard battery module so that the individual hard cells are connected in series to obtain a hard battery pack.

[0091] It should be noted that after obtaining the rigid battery pack, further processing steps are required to obtain usable battery modules. For example, voltage testing of the rigid battery pack is necessary. Also, since the rigid battery pack's casing has an upward-opening structure, it requires subsequent sealing. This application does not elaborate on the processing steps after obtaining the rigid battery pack.

[0092] Reference Figure 2 , Figure 2 This is a schematic flowchart illustrating the steps of a battery pack manufacturing method according to an embodiment of this application. The battery pack manufacturing method according to an embodiment of this application includes, but is not limited to, steps S206 to S214.

[0093] Step S206: Control the first transport module to transport the material carrier tray to one side of the end plate assembly module; wherein, the material carrier tray holds a first rigid battery module, and the first rigid battery module includes multiple rigid cells;

[0094] Step S207: The control end plate assembly module fixes the end plate to the side of the first rigid battery module to obtain the second rigid battery module.

[0095] It is worth noting that the end plate assembly module includes a third robotic arm unit and an end plate placement stage. An end plate with adhesive is placed on the end plate placement stage. When the first rigid battery module is detected to be located on one side of the end plate assembly module 800, the third robotic arm unit is first controlled to retrieve the end plate from the end plate placement stage and attach the adhesive side of the end plate to the fifth side of the first rigid battery module. Then, the third robotic arm is controlled to retrieve the end plate from the end plate placement stage and attach the adhesive side of the end plate to the sixth side of the first rigid battery module, wherein the fifth and sixth sides are opposite to each other.

[0096] Step S208: Control the second robotic arm module to move the battery casing onto the second transport module;

[0097] Step S209: Control the second transport module to transport the battery casing to one side of the adhesive coating module;

[0098] Step S210: Control the adhesive application module to apply adhesive to the battery casing;

[0099] It is worth noting that, in order to fix the second rigid battery module to the battery casing 1400, the battery casing 1400 needs to be coated with adhesive. The battery casing 1400 is cuboid in shape and has an upward opening. The battery casing 1400 has four inner sidewalls and one bottom inner wall. During the adhesive coating process, adhesive needs to be applied to the bottom inner wall and the four inner sidewalls of the battery casing 1400. (Refer to...) Figure 3 , Figure 3 This is a schematic diagram of the adhesive application module 1200. The adhesive application module 1200 includes a first spraying unit 1210, a second spraying unit 1220, a third spraying unit 1230, a fourth spraying unit 1240, and a fifth spraying unit 1250. The first spraying unit 1210, the second spraying unit 1220, the third spraying unit 1230, the fourth spraying unit 1240, and the fifth spraying unit 1250 are sequentially arranged around the fifth spraying unit 1250. Each of the first spraying unit 1210, the second spraying unit 1220, the third spraying unit 1230, the fourth spraying unit 1240, and the fifth spraying unit 1250 is connected to a drive assembly 1260, which drives the corresponding spraying unit to move. When the adhesive application module 1200 performs adhesive application, the first spraying unit 1210, the second spraying unit 1220, the third spraying unit 1230, and the fourth spraying unit 1240 are used to spray adhesive onto the four inner walls of the battery casing 1400 respectively, while the fifth spraying unit 1250 is used to spray adhesive onto the bottom inner wall of the battery casing 1400.

[0100] Step S211: Control the second transport module to transport the battery casing to one side of the assembly module;

[0101] Step S212: The control assembly module installs the second rigid battery module located on the first transport module onto the battery casing to obtain the third rigid battery module.

[0102] It is worth noting that the assembly module 900 obtains the second rigid battery module from the first transport module and transports the second rigid battery module into the battery casing 1400. Since there is adhesive inside the battery casing 1400, the second rigid battery module can be fixed inside the battery casing 1400.

[0103] Step S213: Control the second transport module to transport the third hard battery module to one side of the welding module;

[0104] Step S214: Control the welding module to perform welding on the third rigid battery module to obtain a rigid battery pack.

[0105] It is worth noting that steps S201 to S207 and steps S208 to S211 can be executed simultaneously, which can speed up production and improve production efficiency.

[0106] The battery pack manufacturing method of this application embodiment is applied to a battery pack manufacturing equipment. The method, through steps S206 to S214, first controls the end plate assembly module 800 to fix the end plate to the side of the first rigid battery module, obtaining a second rigid battery module. Then, controls the second robotic arm module 1100 to transport the battery casing 1400 to the second transport module 1000. The second transport module 1000 then transports the battery casing 1400 to one side of the adhesive coating module 1200. The assembly module 900 then installs the second rigid battery module located on the first transport module onto the battery casing 1400, obtaining a third rigid battery module. Next, the second transport module 1000 transports the third rigid battery module to one side of the welding module 1300. Finally, the welding module 1300 performs welding on the third rigid battery module, obtaining a rigid battery pack. Thus, this application achieves automated production of rigid battery packs without the need for manual labor, thereby improving production efficiency.

[0107] In one embodiment, reference is made to Figure 4 Before step S206, steps S201 to S205 are also included.

[0108] Step S201: When the material carrier plate is near the first robotic arm module, control the first robotic arm module to transport a preset number of rigid battery cells onto the material carrier plate, and arrange the rigid battery cells in sequence.

[0109] It is worth noting that the material carrier tray 200 is provided with a preset number of contoured grooves. The rigid battery cell 700 is square in shape, and the shape of the contoured grooves matches the shape of the rigid battery cell 700, so that the rigid battery cell 700 can move smoothly with the material carrier tray 200 when the transport module 100 transports the material carrier tray 200. The preset number is the number of rigid battery cells 700 in the rigid battery module, so one rigid battery cell 700 on one material carrier tray 200 can produce one rigid battery module.

[0110] It is worth noting that the rigid battery cells 700 are arranged in a row on the physical support disk to facilitate the execution of subsequent processes.

[0111] Step S202: Control the first transport module to transport the material carrier tray to one side of the adhesive application module;

[0112] Step S203: Control the adhesive application module to apply adhesive to the rigid battery cell;

[0113] Step S204: After the adhesive application is completed, control the first transport module to transport the material carrier tray to one side of the stacking module;

[0114] Step S205: Control the stacking module to stack and combine the rigid cells to obtain the first rigid battery module.

[0115] It is worth noting that, referring to Figure 5 , Figure 5 This is a simplified structural diagram of the stacking module 600. The stacking module 600 includes a stacking platform 610 and a stacking robot assembly 620. In step S270, the stacking robot assembly 620 transports the rigid battery cells 700 from the material carrier tray 200 to the stacking platform 610, ensuring that the arrangement order of the rigid battery cells 700 on the stacking platform 610 is the same as the arrangement order of the rigid battery cells 700 on the material carrier tray 200. The stacking module 600 also includes four push plates: a first push plate 631, a second push plate 632, a third push plate 633, and a fourth push plate 634. Each push plate is located on the stacking platform, with the first push plate 631 and the second push plate 632 being opposite and parallel, and the third push plate 633 and the fourth push plate 634 being opposite and parallel. The first push plate 631 and the third push plate 633 are adjacent and perpendicular to each other. Each push plate is connected to a drive cylinder 640, which is used to drive the corresponding push plate to move so that the first push plate 631 and the second push plate 632 can move closer or further away from each other, and the third push plate 633 and the fourth push plate 634 can move closer or further away from each other. During stacking, the stacking steps are as follows: First, the rigid battery cells 700 on the material carrier tray 200 are transported to the stacking platform 610 by the stacking robot assembly 620, and each rigid battery cell 700 is located between the first push plate 631 and the second push plate 632, and each rigid battery cell 700 is located between the third push plate 633 and the fourth push plate 634. Then, the first push plate 631 and the second push plate 632 are driven to move closer to each other so that each rigid battery cell 700 is gathered and arranged neatly. Then, the third push plate 633 and the fourth push plate 634 are driven to move closer to each other, and the first push plate 631 and the second push plate 632 are driven closer to each other, thereby squeezing the rigid battery cells 700 to obtain a rigid battery module.

[0116] In one embodiment, reference is made to Figure 1 The battery pack manufacturing equipment also includes a flipping module, which is located between the first robotic arm module and the adhesive application module. The flipping module includes a first robotic arm unit and a first vision unit; the end face of the rigid battery cell is provided with a positive electrode tab and a negative electrode tab; (Refer to...) Figure 6 , Figure 6 This is a schematic flowchart of another step in the battery pack manufacturing method according to an embodiment of this application. Before controlling the first transport module to transport the material carrier tray to one side of the adhesive bonding module, steps S510 to S520 are also included.

[0117] Step S510: Control the first transport module to transport the material carrier tray to the flipping module, and control the first vision unit to acquire the first image of the material carrier tray;

[0118] Step S520: The first robotic arm unit based on the first image control flipping module flips the rigid battery cell so that the positive electrode of any rigid battery cell is adjacent to the negative electrode of the adjacent rigid battery cell, and the negative electrode of any rigid battery cell is adjacent to the positive electrode of the adjacent rigid battery cell.

[0119] It should be noted that in the rigid battery module, each rigid cell 700 needs to be soldered in a subsequent process to connect them in series. To facilitate this soldering process, the positive tab of any rigid cell 700 must be adjacent to the negative tab of the adjacent rigid cell 700, and the negative tab of any rigid cell 700 must be adjacent to the positive tab of the adjacent rigid cell 700. (Refer to...) Figure 7 , Figure 7 for Figure 6 A schematic diagram of the processing in step S520. When the first robotic arm module 300 transports the rigid battery cell 700 onto the physical support plate, it cannot sense the positions of the positive and negative tabs in the rigid battery cell 700. Therefore, in the physical support plate, there may be a situation where the positive tab of a certain rigid battery cell 700 is adjacent to the negative tab of an adjacent rigid battery cell 700, and the negative tab of the same rigid battery cell 700 is adjacent to the positive tab of an adjacent rigid battery cell 700. Therefore, it is necessary to identify the rigid battery cell 700 through the first image and control the first robotic arm unit to flip the rigid battery cell 700 so that the positive tab of the rigid battery cell 700 is adjacent to the negative tab of an adjacent rigid battery cell 700, and the negative tab of the same rigid battery cell 700 is adjacent to the positive tab of an adjacent rigid battery cell 700, so as to facilitate the subsequent series connection between the various rigid battery cells 700.

[0120] It should be noted that adjacent rigid battery cells 700 refer to rigid battery cells 700 that are adjacent to each other. For example, the material carrier tray 200 has four rigid battery cells 700, which are arranged in a row as the first, second, third, and fourth rigid battery cells 700. For the first rigid battery cell 700, its adjacent rigid battery cell 700 is the second rigid battery cell 700; and for the second rigid battery cell 700, its adjacent rigid battery cells 700 are the first and third rigid battery cells 700.

[0121] It is worth noting that in step S214, the welding module 1300 uses a laser welding machine. During the welding process, the welding module 1300 welds the positive tab of the rigid battery cell to the negative tab of an adjacent rigid battery cell, and welds the negative tab of the rigid battery cell to the positive tab of an adjacent rigid battery cell, thereby achieving series connection between the rigid battery cells. Furthermore, the end plate is provided with multiple electrical terminals. The rigid battery cell adjacent to the end plate is identified, and its positive and negative tabs are welded to the electrical terminals on the end plate, respectively. This allows the third rigid battery module to be electrically connected to external devices via the end plate.

[0122] In one embodiment, the end face of the rigid battery cell is further provided with a first marking portion and a second marking portion, the first marking portion surrounding the positive electrode tab and the second marking portion surrounding the negative electrode tab. (See reference...) Figure 8 , Figure 8 for Figure 6 A schematic diagram of a specific process step S520 is shown. Step S520 may include, but is not limited to, steps S710 to S730.

[0123] Step S710: Obtain the first position information of the first rigid battery cell based on the first image; the first position information includes the position information of the first and second identification parts of the first rigid battery cell;

[0124] Step S720: Obtain the i-th position information of the i-th rigid battery cell based on the first image; the i-th position information includes the position information of the first and second identifiers of the i-th rigid battery cell;

[0125] Step S730: Based on the (i-1)th position information, the i-th position information is detected and processed. If the position of the first identifier of the (i-1)th rigid battery cell is adjacent to the position of the first identifier of the i-th rigid battery cell, and the position of the second identifier of the (i-1)th rigid battery cell is adjacent to the position of the second identifier of the i-th rigid battery cell, the first robotic arm unit is controlled to flip the i-th rigid battery cell so that the position of the first identifier of the (i-1)th rigid battery cell is adjacent to the position of the second identifier of the i-th rigid battery cell, and the position of the second identifier of the (i-1)th rigid battery cell is adjacent to the position of the first identifier of the i-th rigid battery cell; where i is 2, 3, ..., N; N is a preset number.

[0126] It is worth noting that when it is detected that the position of the first marking part 710 of the (i-1)th rigid battery cell 700 is adjacent to the position of the first marking part 710 of the i-th rigid battery cell 700, and the position of the second marking part 720 of the (i-1)th rigid battery cell 700 is adjacent to the position of the second marking part 720 of the i-th rigid battery cell 700, the first robotic arm unit is controlled to flip the i-th rigid battery cell 700. During the flipping process, the side of the i-th rigid battery cell 700 with the first marking part 710 and the second marking part 720 is kept facing upward, and then the i-th rigid battery cell 700 is rotated 180 degrees, thereby realizing the interchange of the positions of the first marking part 710 and the second marking part 720 in the i-th rigid battery cell 700.

[0127] It is worth noting that, since there may be situations where the positions of multiple rigid battery cells 700 are unfavorable for subsequent soldering, the position information of the first marking portion 710 and the second marking portion 720 of the first rigid battery cell 700 is first determined. Then, the subsequent rigid battery cells 700 are flipped sequentially using the first marking portion 710 and the second marking portion 720 of the first rigid battery cell 700. Specifically, after step S710, steps S720 to S730 are repeated to ensure that the position of the first marking portion 710 of each rigid battery cell 700 is adjacent to the position of the second marking portion 720 of the adjacent rigid battery cell 700, and the position of the second marking portion 720 of each rigid battery cell 700 is adjacent to the position of the first marking portion 710 of the adjacent rigid battery cell 700. Since the first marking part 710 surrounds the positive electrode tab and the second marking part 720 surrounds the negative electrode tab, it is equivalent to realizing that the positive electrode tab of any rigid battery cell 700 is adjacent to the negative electrode tab of the adjacent rigid battery cell 700, and the negative electrode tab of any rigid battery cell 700 is adjacent to the positive electrode tab of the adjacent rigid battery cell 700, so as to facilitate the series connection between each rigid battery cell 700 in the subsequent process flow.

[0128] In one embodiment, reference is made to Figure 9 , Figure 9 for Figure 8 A partial flowchart of step S730 is shown. In step S730, the detection and processing of the i-th position information based on the (i-1)-th position information may include, but is not limited to, steps S810 to S820.

[0129] Step S810: Calculate the first distance between the first identification portion of the i-th rigid battery cell and the first identification portion of the (i-1)-th rigid battery cell based on the first image, and calculate the second distance between the first identification portion of the i-th rigid battery cell and the second identification portion of the (i-1)-th rigid battery cell.

[0130] Step S820: If the first distance is detected to be less than the second distance, determine that the position of the first marking part of the (i-1)th rigid battery cell is adjacent to the position of the first marking part of the i-th rigid battery cell, and the position of the second marking part of the (i-1)th rigid battery cell is adjacent to the position of the second marking part of the i-th rigid battery cell.

[0131] It is worth noting that if the first distance is greater than the second distance, it means that the position of the first marking part 710 of the (i-1)th rigid battery cell 700 is adjacent to the position of the second marking part 720 of the i-th rigid battery cell 700, and the position of the second marking part 720 of the (i-1)th rigid battery cell 700 is adjacent to the position of the first marking part 710 of the i-th rigid battery cell 700.

[0132] In one embodiment, reference is made to Figure 10 , Figure 10 This is a schematic diagram of a sub-process of the battery pack manufacturing method according to an embodiment of this application. Figure 10 The illustrated process flow is executed before step S510. Specifically, steps S910 to S920 are included, but are not limited to, preceding step S510.

[0133] Step S910: Control the first vision unit to acquire the second image of the material carrier plate;

[0134] Step S920: Based on the second image, the rigid battery cell is detected. If the first marking part or the second marking part is not located on the end face of the rigid battery cell, the first robotic arm unit is controlled to flip the rigid battery cell so that the first marking part and the second marking part of the rigid battery cell are located on the end face of the rigid battery cell.

[0135] It is worth noting that when the first robotic arm module 300 transports the rigid battery cell 700 onto the material carrier tray 200, there may be a situation where the side of the rigid battery cell 700 with the positive and negative tabs is not facing upwards. In order to ensure that the side of the rigid battery cell 700 with the positive and negative tabs faces upwards, this embodiment controls the first vision unit to acquire a second image of the material carrier tray 200 through steps S910 to S920, and performs detection processing on the rigid battery cell 700 based on the second image to detect whether there is a rigid battery cell 700 whose upward-facing side does not have the first marking part 710. If the second marking portion 720 is present, it indicates that the side of the rigid battery cell 700 with the first marking portion 710 and the second marking portion 720 is not facing upwards, that is, the first marking portion 710 and the second marking portion 720 of the rigid battery cell 700 are not located on the end face of the rigid battery cell 700. Then, the first robotic arm unit is controlled to flip the rigid battery cell 700 so that the side of the rigid battery cell 700 with the first marking portion 710 and the second marking portion 720 faces upwards, which is equivalent to making the first marking portion 710 and the second marking portion 720 of the rigid battery cell 700 located on the end face of the rigid battery cell 700.

[0136] In one embodiment, reference is made to Figure 11 , Figure 11 This is a simplified structural diagram of the adhesive application module 500 according to an embodiment of this application. The adhesive application module 500 includes a cleaning component 510, an adhesive application component 520, and a film removal component 540, which are arranged sequentially. The cleaning component 510 is used to perform plasma cleaning on the rigid battery cell 700, the adhesive application component 520 is used to apply adhesive tape to the side of the rigid battery cell 700, and the film removal component 540 is used to remove the protective film from the adhesive tape.

[0137] Reference Figure 12 , Figure 12 for Figure 4 A schematic diagram of a specific process for step S203. Step S203 may include, but is not limited to, steps S1110 to S1150.

[0138] Step S1110: Control the cleaning assembly to perform plasma cleaning on the hard battery cell;

[0139] Step S1120: Control the first transport module to transport the material carrier tray to one side of the adhesive application assembly;

[0140] Step S1130: Control the adhesive application assembly to apply the tape to the side of the rigid battery cell;

[0141] Step S1140: Control the first transport module to transport the material carrier tray to one side of the film-tearing assembly;

[0142] Step S1150: Control the film-peeling assembly to peel off the tape on the rigid battery cell.

[0143] In this embodiment, steps S1110 to S1150 first control the cleaning component 510 to perform plasma cleaning on the rigid battery cell 700 to ensure that the rigid battery cell 700 is dry, clean, and free of oil, dust, and other impurities. Then, the first transport module 100 transports the material carrier tray 200 to one side of the adhesive application component 520. The adhesive application component 520 then applies adhesive tape to the side of the rigid battery cell 700. The first transport module 100 then transports the material carrier tray 200 to one side of the film-peeling component 540, which peels off the protective film from the adhesive tape on the rigid battery cell 700. This completes the adhesive application process. Applying adhesive to the rigid battery cell 700 provides heat insulation and electrical insulation, preventing high temperatures or current leakage from the battery cell to the external environment and reducing the occurrence of safety accidents.

[0144] In one embodiment, reference is made to Figure 13 , Figure 13 This is a simplified structural diagram of the adhesive application assembly 520 according to an embodiment of this application. The adhesive application assembly 520 includes a first driving unit 5210, a second driving unit 5220, a third driving unit 5230, a first adsorption unit 5240, a second adsorption unit 5250, a first clamping unit 5231, a first tape cutting unit 5280, a first tape releasing unit 5260, a second tape cutting unit 5290, and a second tape releasing unit 5270. The first driving unit 5210 is connected to the first adsorption unit 5240 and is used to drive the first adsorption unit 5240 to move. The second driving unit 5220 is connected to the second adsorption unit 5250 and is used to drive the second adsorption unit 5250 to move. The third driving unit 5230 is connected to the first clamping unit 5231 and is used to drive the first clamping unit 5231 to move.

[0145] Reference Figure 14 , Figure 14 for Figure 12 A schematic diagram of a specific process for step S1130. Step S1130 may include, but is not limited to, steps S1310 to S1370.

[0146] Step S1310: Control the third drive unit to control the first clamping unit to clamp the first side and the second side of the rigid battery cell, and control the third drive unit to control the first clamping unit to drive the rigid battery cell to rise; wherein, the first side and the second side of the rigid battery cell are opposite to each other.

[0147] It is worth noting that the rigid battery cell 700 is rectangular in shape, with its first and second sides facing away from each other. Since no adhesive is required on the first and second sides, the third drive unit 5230 controls the first clamping unit 5231 to clamp the first and second sides of the rigid battery cell 700. This allows the third drive unit 5230 to control the first clamping unit 5231 to lift the rigid battery cell 700, moving it away from the material carrier tray 200. This ensures sufficient space around the rigid battery cell 700, preventing interference from adjacent rigid battery cells 700 during the adhesive application process, and facilitating subsequent adhesive application steps.

[0148] Step S1320: Control the first tape release unit to release the first tape, and control the first drive unit to control the first adsorption unit to adsorb the first tape. When the first tape reaches the preset length, control the first tape release unit to stop releasing the first tape, and control the first tape cutting unit to cut the first tape.

[0149] It is worth noting that the tape is in the form of a film roll, which includes a first film roll. The first film roll is installed in the first tape release unit 5260. The tape in the first film roll is released by controlling the first tape release unit 5260. In one embodiment, a first length detection unit (not shown in the figure) is also provided. The first length detection unit is located on one side of the first tape release unit 5260. The first length detection unit is used to detect the length of the first tape. When the first tape reaches a preset length, the first tape release unit 5260 is controlled to stop releasing the first tape, and the first tape cutting unit 5280 is controlled to cut the first tape.

[0150] Step S1330: Control the first driving unit to control the first adsorption unit to attach the first tape to the third side of the rigid battery cell;

[0151] Step S1340: Control the second tape release unit to release the second tape, and control the second drive unit to control the second adsorption unit to adsorb the second tape. When the second tape reaches the preset length, control the second tape release unit to stop releasing the second tape, and control the second tape cutting unit to cut the second tape.

[0152] It is worth noting that the film roll includes a second film roll, which is installed in the second tape release unit 5270. The tape in the second film roll is released by controlling the second tape release unit 5270. In one embodiment, a second length detection unit (not shown in the figure) is also provided. The second length detection unit is located on one side of the second tape release unit 5270 and is used to detect the length of the second tape. When the second tape reaches a preset length, the second tape release unit 5270 is controlled to stop releasing the second tape, and the second tape cutting unit 5290 is controlled to cut the second tape.

[0153] Step S1350: Control the second driving unit to control the second adsorption unit to attach the second adhesive tape to the fourth side of the rigid battery cell; wherein the third side of the rigid battery cell is opposite to the fourth side.

[0154] It is worth noting that the first adsorption unit 5240 and the second adsorption unit 5250 are positioned opposite each other. The distance between the first adsorption unit 5240 and the third side of the rigid battery cell 700 is smaller than the distance between the second adsorption unit 5250 and the third side of the rigid battery cell 700. However, the distance between the first adsorption unit 5240 and the fourth side of the rigid battery cell 700 is greater than the distance between the second adsorption unit 5250 and the fourth side of the rigid battery cell 700. Therefore, by using the first adsorption unit 5240 to attach the first tape to the third side of the rigid battery cell 700 and controlling the second adsorption unit 5250 to attach the second tape to the fourth side of the rigid battery cell 700, the bonding efficiency can be improved.

[0155] Step S1360: Control the first driving unit to control the first adsorption unit to move away from the hard battery cell, and control the second driving unit to control the second adsorption unit to move away from the hard battery cell.

[0156] In step S1370, the third drive unit controls the first clamping unit to drive the rigid battery cell down and causes the first clamping unit to release the rigid battery cell so as to place the rigid battery cell on the material carrier tray.

[0157] In this embodiment, the adhesive application process for the rigid battery cell 700 is achieved through steps S1310 to S1370. During adhesive application, the third drive unit 5230 is first controlled to control the first clamping unit 5231 to lift the rigid battery cell 700. After adhesive application is completed, the third drive unit 5230 is controlled to control the first clamping unit 5231 to lift the rigid battery cell 700 and release the rigid battery cell 700 so that the rigid battery cell 700 is placed on the material carrier tray 200. In this way, while completing the adhesive application process, the position of the rigid battery cell 700 remains unchanged from its position before adhesive application. Moreover, the rigid battery cell 700 does not rotate or perform any other actions during the adhesive application process, which ensures that the positions of the positive and negative electrodes in the rigid battery cell 700 remain unchanged.

[0158] In one embodiment, reference is made to Figure 11 The adhesive application module 500 in this embodiment further includes an adhesive application detection component 530, which is located between the adhesive application component 520 and the film removal component 540. (Refer to...) Figure 15 , Figure 15 This is a simplified structural diagram of the adhesive application detection component 530 according to an embodiment of this application. The adhesive application detection component 530 includes a second vision unit 532, a second robotic arm unit 531, a defective product placement stage 533, and a good product placement stage 534. Multiple rigid battery cells 700 that have undergone pre-applied adhesive treatment and passed the adhesive application process are placed on the good product placement stage 534. (Refer to...) Figure 16 , Figure 16 This is a schematic diagram of a sub-process of a battery pack manufacturing method according to another embodiment of this application. Before step S1140, the method of this embodiment further includes the following steps:

[0159] Step S1510: Control the first transport module to transport the material carrier tray to one side of the adhesive detection component;

[0160] Step S1520: Control the second vision unit to acquire a third image of the rigid battery cell on the material carrier plate;

[0161] Step S1530: The rigid battery cell is subjected to adhesive adhesion detection processing through the third image. If the adhesive adhesion of the rigid battery cell is found to be unqualified, the unqualified rigid battery cell is determined, and the second vision unit is controlled to acquire the fourth image of the unqualified rigid battery cell.

[0162] It is worth noting that unqualified cells refer to rigid cells 700 that fail the adhesive bonding test. In step S1530, if all rigid cells 700 on the material carrier tray 200 are found to have passed the adhesive bonding test, then steps S1640 to S1560 do not need to be executed, and step S1240 can be executed directly.

[0163] Step S1540: Obtain the non-conforming location information of the non-conforming hard battery cells based on the fourth image. The non-conforming location information includes the sorting information of the non-conforming hard battery cells and the position information of the first and second identification parts of the non-conforming hard battery cells.

[0164] Step S1550: Control the second robotic arm unit to transport the non-conforming hard battery cells to the defective product placement table;

[0165] In step S1560, the second robotic arm unit is controlled to obtain qualified hard battery cells from the good product placement table, and based on the unqualified position information of the unqualified hard battery cells, the qualified hard battery cells are transported to the material carrier tray so that the qualified position information of the qualified hard battery cells is the same as the unqualified position information of the unqualified hard battery cells.

[0166] It is worth noting that a qualified rigid battery cell 700 refers to a rigid battery cell 700 placed on the good product placement table 534 and having passed the adhesive application test. The qualified position information includes the sorting information of the qualified rigid battery cells 700 and the position information of the first marking part 710 and the second marking part 720 of the qualified rigid battery cells 700; the qualified position information can be obtained through the second vision unit 532.

[0167] In related technologies, during the battery cell assembly process, if a battery cell is found to have substandard adhesive bonding, the production process needs to be stopped, and the entire material carrier 200 is treated as waste, resulting in low production efficiency. However, in the embodiment of this application, through steps S1510 to S1560, if a substandard adhesive bonding of a rigid battery cell 700 is detected, a qualified rigid battery cell 700 is used to replace the substandard one. Thus, the production process can continue without stopping, improving production efficiency.

[0168] Reference Figure 17 , Figure 17 This is a simplified structural diagram of the film-tearing assembly 540 according to an embodiment of this application. The film-tearing assembly 540 includes a second clamping unit 545, a first film-tearing unit 544, a fourth driving unit 541, and a fifth driving unit 542. The fourth driving unit 541 is connected to the second clamping unit 545 and is used to drive the second clamping unit 545 to move. The fifth driving unit 542 is connected to the first film-tearing unit 544 and is used to drive the first film-tearing unit 544 to move.

[0169] In one embodiment, step S1150 includes, but is not limited to, the following steps:

[0170] The fourth drive unit 541 controls the second clamping unit 545 to clamp the Nth rigid battery cell 700, and controls the fourth drive unit 541 to control the second clamping unit 545 to drive the Nth rigid battery cell 700 to rise.

[0171] The fifth drive unit 542 controls the first film-tearing unit 544 to peel off the film of the first adhesive tape on the third side of the Nth rigid battery cell 700; wherein the third side of the Nth rigid battery cell 700 is the side close to the (N-1)th rigid battery cell 700.

[0172] The fourth drive unit 541 controls the second clamping unit 545 to drive the Nth rigid battery cell 700 down, and causes the second clamping unit 545 to release the Nth rigid battery cell 700 so as to place the Nth rigid battery cell 700 on the material carrier tray 200.

[0173] In step S1150, when peeling off the film of the adhesive tape, the Nth rigid battery cell 700 is the last rigid battery cell 700. Normally, the last rigid battery cell 700 needs to be in contact with the housing, meaning the fourth side of the Nth rigid battery cell 700 is in contact with the housing. During housing installation, adhesive is applied to the housing, so it is generally not necessary to peel off the film from the side of the rigid battery cell 700 that is in contact with the housing. When peeling off the film of the adhesive tape, only the film of the first adhesive tape on the third side of the Nth rigid battery cell 700 is peeled off, without peeling off the film of the second adhesive tape on the fourth side of the Nth rigid battery cell 700. This simplifies the film-peeling process and improves production efficiency. Furthermore, during the film-tearing process, the fourth drive unit 541 controls the second clamping unit 545 to drive the Nth rigid battery cell 700 upward. After the film is torn, the second clamping unit 545 controls the Nth rigid battery cell 700 to descend and releases the Nth rigid battery cell 700, so as to place the Nth rigid battery cell 700 on the material carrier plate 200, ensuring that the position of the Nth rigid battery cell 700 remains unchanged during the film-tearing process.

[0174] In one embodiment, reference is made to Figure 17 The film-tearing assembly 540 also includes a second film-tearing unit 546 and a sixth driving unit 543; the sixth driving unit 543 is connected to the second film-tearing unit 546 and is used to drive the second film-tearing unit 546 to move.

[0175] In one embodiment, step S1150 may further include the following steps:

[0176] The fourth drive unit 541 controls the second clamping unit 545 to clamp the first rigid battery cell 700, and controls the fourth drive unit 541 to control the second clamping unit 545 to drive the first rigid battery cell 700 to rise.

[0177] The sixth drive unit 543 controls the second film-tearing unit 546 to peel off the film of the second adhesive tape on the fourth side of the first rigid battery cell 700; wherein the fourth side of the first rigid battery cell 700 is the side close to the second rigid battery cell 700.

[0178] The fourth drive unit 541 controls the second clamping unit 545 to drive the first rigid battery cell 700 down and causes the second clamping unit 545 to release the first rigid battery cell 700 so as to place the first rigid battery cell 700 on the material carrier tray 200.

[0179] In step S1150, when peeling off the film of the adhesive tape, the first rigid battery cell 700 typically needs to be in contact with the housing, that is, the third side of the first rigid battery cell 700 is in contact with the housing. Since adhesive is applied to the housing during installation, it is generally not necessary to peel off the film from the side of the rigid battery cell 700 that is in contact with the housing. When peeling off the film, only the film of the second adhesive tape on the fourth side of the first rigid battery cell 700 is peeled off, without peeling off the film of the first adhesive tape on the third side of the first rigid battery cell 700. This simplifies the film-peeling process and improves production efficiency. Furthermore, during the film-tearing process, the fourth drive unit 541 controls the second clamping unit 545 to drive the first rigid battery cell 700 upward. After the film is torn, the second clamping unit 545 controls the first rigid battery cell 700 to descend and releases the first rigid battery cell 700 to place the first rigid battery cell 700 on the material carrier tray 200, ensuring that the position of the first rigid battery cell 700 remains unchanged during the film-tearing process.

[0180] In one embodiment, step S1150 may further include the following steps:

[0181] The fourth drive unit 541 controls the second clamping unit 545 to clamp the j-th rigid battery cell 700, and controls the fourth drive unit 541 to control the second clamping unit 545 to drive the j-th rigid battery cell 700 to rise; where j is a positive integer greater than 1 and less than N.

[0182] The fifth drive unit 542 controls the first film-tearing unit 544 to peel off the film of the first adhesive tape on the third side of the j-th rigid battery cell 700;

[0183] The sixth drive unit 543 controls the second film-tearing unit 546 to peel off the film of the second adhesive tape on the fourth side of the j-th rigid battery cell 700;

[0184] The fourth drive unit 541 controls the second clamping unit 545 to drive the j-th rigid battery cell 700 down, and causes the second clamping unit 545 to release the j-th rigid battery cell 700 so as to place the j-th rigid battery cell 700 on the material carrier tray 200.

[0185] In step S1150, when peeling off the film of the adhesive tape, the rigid battery cell 700 located between the first rigid battery cell 700 and the Nth rigid battery cell 700 needs to have not only the film of the first adhesive tape on its third side peeled off, but also the film of the second adhesive tape on its fourth side peeled off. During the film peeling process, the fourth drive unit 541 controls the second clamping unit 545 to drive the j-th rigid battery cell 700 upward. After peeling, the second clamping unit 545 controls the second clamping unit 545 to drive the j-th rigid battery cell 700 downward and releases the j-th rigid battery cell 700 to place the j-th rigid battery cell 700 on the material carrier tray 200, ensuring that the position of the j-th rigid battery cell 700 remains unchanged during the film peeling process.

[0186] A second aspect of this application provides an electronic device including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the battery pack manufacturing method of any one of the first aspects of the embodiment. This electronic device can be any smart terminal, including tablet computers, in-vehicle computers, etc.

[0187] Reference Figure 18 , Figure 18 This is a schematic diagram of the structure of an electronic device according to one embodiment. The electronic device includes:

[0188] The processor 1701 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application.

[0189] The memory 1702 can be implemented as a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 1702 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 1702 and is called and executed by the processor 1701 using the battery pack manufacturing method of the embodiments of this application.

[0190] The input / output interface 1703 is used to implement information input and output;

[0191] The communication interface 1704 is used to enable communication and interaction between this device and other devices. Communication can be achieved through wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0192] Bus 1705 transmits information between various components of the device (e.g., processor 1701, memory 1702, input / output interface 1703, and communication interface 1704);

[0193] The processor 1701, memory 1702, input / output interface 1703 and communication interface 1704 are connected to each other within the device via bus 1705.

[0194] A third aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the battery pack manufacturing method of any one of the first aspects of this application.

[0195] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0196] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0197] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0198] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0199] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0200] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0201] It should be understood that in this application, "at least one (item)" means one or more, and "more than one" means two or more. "And / or" is used to describe the mapping relationship between the mapped objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following mapped objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0202] In the embodiments provided in this application, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0203] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0204] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0205] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes multiple instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing programs, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0206] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A method for manufacturing a battery pack, characterized in that, This invention pertains to battery pack manufacturing equipment, which includes a first transport module, a material carrier tray, an end plate assembly module, a second transport module, a second robotic arm module, an adhesive application module, an assembly module, and a welding module. The material carrier tray is movably mounted on the first transport module. The second robotic arm module, the adhesive application module, the assembly module, and the welding module are sequentially arranged on one side of the second transport module along its second length direction. The battery pack manufacturing equipment also includes a first robotic arm module, an adhesive application module, a stacking module, and a flipping module. The flipping module is located between the first robotic arm module and the adhesive application module, and includes a first robotic arm unit and a first vision unit. A positive electrode tab and a negative electrode tab are provided on the end face of the rigid battery cell. The end face of the rigid battery cell also has a first marking portion and a second marking portion, with the first marking portion surrounding the positive electrode tab and the second marking portion surrounding the negative electrode tab. The method includes: The first transport module is controlled to transport the material carrier tray to the flipping module, and the first vision unit is controlled to acquire a first image of the material carrier tray. Based on the first image, first position information of the first rigid battery cell is obtained; the first position information includes the position information of the first identification portion and the second identification portion of the first rigid battery cell; Based on the first image, the i-th position information of the i-th rigid battery cell is obtained; the i-th position information includes the position information of the first and second identification parts of the i-th rigid battery cell; Based on the (i-1)th position information, the i-th position information is detected and processed. If it is detected that the position of the first identifier of the (i-1)th rigid battery cell is adjacent to the position of the first identifier of the i-th rigid battery cell, and the position of the second identifier of the (i-1)th rigid battery cell is adjacent to the position of the second identifier of the i-th rigid battery cell, the first robotic arm unit is controlled to flip the i-th rigid battery cell so that the positions of the first identifier of the (i-1)th rigid battery cell and the second identifier of the (i-1)th rigid battery cell are adjacent to the positions of the second identifier of the i-th rigid battery cell; where i is 2, 3, ..., N; and N is a preset number. The first transport module is controlled to transport the material carrier tray to one side of the end plate assembly module; wherein, a first rigid battery module is placed on the material carrier tray, and the first rigid battery module includes multiple rigid battery cells; The end plate assembly module is controlled to fix the end plate to the side of the first rigid battery module to obtain the second rigid battery module. The second robotic arm module is controlled to move the battery casing onto the second transport module; The second transport module is controlled to transport the battery casing to one side of the adhesive coating module; The adhesive application module is controlled to apply adhesive to the battery casing. The second transport module is controlled to transport the battery casing to one side of the assembly module; The assembly module is controlled to install the second rigid battery module located on the first transport module onto the battery casing to obtain the third rigid battery module; The second transport module is controlled to transport the third rigid battery module to one side of the welding module; The welding module is controlled to perform welding processing on the third rigid battery module to obtain a rigid battery pack.

2. The battery pack manufacturing method according to claim 1, characterized in that, The first robotic arm module, the adhesive application module, the stacking module, and the end plate assembly module are sequentially arranged on one side of the first transport module along the first length direction of the first transport module; the material carrying tray is used to place the rigid battery cell; Before the first transport module transports the material carrier to the tipping module, the following steps are included: When the material carrier plate is adjacent to the first robotic arm module, the first robotic arm module is controlled to transport a preset number of rigid battery cells onto the material carrier plate, and the rigid battery cells are arranged in sequence. Before the first transport module is controlled to transport the material carrier to one side of the end plate assembly module, the following steps are included: The first transport module is controlled to transport the material carrier tray to one side of the adhesive application module; The adhesive application module is controlled to apply adhesive to the rigid battery cell. After the adhesive application is completed, the first transport module is controlled to transport the material carrier tray to one side of the stacking module; The stacking module is controlled to stack and combine the various rigid battery cells to obtain the first rigid battery module.

3. The battery pack manufacturing method according to claim 2, characterized in that, The detection processing of the i-th position information based on the (i-1)-th position information includes: Based on the first image, calculate the first distance between the first identification portion of the i-th rigid battery cell and the first identification portion of the (i-1)-th rigid battery cell, and calculate the second distance between the first identification portion of the i-th rigid battery cell and the second identification portion of the (i-1)-th rigid battery cell; If the first distance is detected to be less than the second distance, it is determined that the position of the first marking part of the (i-1)th rigid battery cell is adjacent to the position of the first marking part of the i-th rigid battery cell, and the position of the second marking part of the (i-1)th rigid battery cell is adjacent to the position of the second marking part of the i-th rigid battery cell.

4. The battery pack manufacturing method according to claim 3, characterized in that, Before controlling the first vision unit to acquire the first image of the material carrier tray, the method further includes: Control the first vision unit to acquire a second image of the material carrier tray; Based on the second image, the rigid battery cell is detected. If the first or second marking portion is not located on the end face of the rigid battery cell, the first robotic arm unit is controlled to flip the rigid battery cell so that the first and second marking portions of the rigid battery cell are located on the end face of the rigid battery cell.

5. The battery pack manufacturing method according to claim 1, characterized in that, The adhesive application module includes a cleaning component, an adhesive application component, and a film removal component, which are arranged sequentially. The process of controlling the adhesive application module to apply adhesive to the rigid battery cell includes: The cleaning assembly is controlled to perform plasma cleaning on the rigid battery cell. The first transport module is controlled to transport the material carrier tray to one side of the adhesive application assembly; The adhesive application assembly is controlled to apply the adhesive tape to the side of the rigid battery cell; The first transport module is controlled to transport the material carrier tray to one side of the film-tearing assembly; The film-peeling assembly is controlled to peel off the adhesive tape on the rigid battery cell.

6. The battery pack manufacturing method according to claim 5, characterized in that, The adhesive application module further includes an adhesive application detection component, which is located between the adhesive application component and the film peeling component; the adhesive application detection component includes a second vision unit, a second robotic arm unit, a defective product placement table, and a good product placement table; qualified rigid battery cells with successful adhesive application are placed on the good product placement table; Before the first transport module is controlled to transport the material carrier tray to one side of the film-tearing assembly, the method further includes: The first transport module is controlled to transport the material carrier tray to one side of the adhesive detection component; The second vision unit is controlled to acquire a third image of the rigid battery cell on the material carrier tray; The rigid battery cell is subjected to adhesive adhesion detection processing through the third image. If the adhesive adhesion of the rigid battery cell is found to be unqualified, the unqualified rigid battery cell is determined, and the second vision unit is controlled to acquire the fourth image of the unqualified rigid battery cell. Based on the fourth image, the non-conforming location information of the non-conforming hard battery cell is obtained. The non-conforming location information includes the sorting information of the non-conforming hard battery cell and the position information of the first and second identification parts of the non-conforming hard battery cell. The second robotic arm unit is controlled to transport the non-conforming hard battery cell to the defective product placement platform; The second robotic arm unit is controlled to acquire the qualified hard battery cell from the good product placement table, and based on the unqualified position information of the unqualified hard battery cell, the qualified hard battery cell is transported to the material carrier tray, so that the qualified position information of the qualified hard battery cell is the same as the unqualified position information of the unqualified hard battery cell.

7. An electronic device, characterized in that, The electronic device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the battery pack manufacturing method according to any one of claims 1 to 6.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the battery pack manufacturing method according to any one of claims 1 to 6.

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