Assembly device for battery cell assemblies

Abstract

The application relates to an assembling device of an electric core assembly, comprising: an electric core assembling mechanism for assembling single electric cores into an electric core assembly; and a riveting mechanism for connecting the tab and the current conductor of the electric core assembly; wherein the riveting mechanism comprises a main structure and a pressing mechanism, the main structure is used for placing the assembled electric core assembly, and the riveting mechanism is used for riveting and connecting the tab and the current conductor of the assembled electric core assembly. The assembling device of the electric core assembly can improve the consistency of the electric core assembly assembling, improve the welding yield and the assembling efficiency, and provide a reference for subsequent production line automation.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to an assembly apparatus for a battery cell assembly. Background Technology

[0002] Batteries, as a crucial power energy material in modern industry, have a wide and mature application, supporting everything from consumer electronics to new energy vehicles. While battery manufacturing processes are quite sophisticated with continuous technological advancements, some technical challenges remain to be addressed in the actual production process, particularly regarding battery tabs and fluid-conducting connection assembly. These challenges manifest in the following aspects: 1. During manual assembly, the lack of professional positioning devices and guiding mechanisms makes it difficult to accurately control the relative position of the electrode tab and the fluid guide, resulting in poor product consistency, unstable welding quality, and easy occurrence of defects such as incomplete welding and false welding.

[0003] 2. Traditional manual assembly methods are not only inefficient and unable to meet the needs of mass production, but also result in a high product defect rate due to the uncertainty of manual operation, which increases production costs.

[0004] 3. Currently, the industry lacks mature automated production line design solutions and technical references, which restricts the development of battery manufacturing towards intelligence and automation.

[0005] A deeper analysis reveals that the root cause of these problems lies primarily in the fact that current technology remains reliant on traditional manual operation methods. This manual approach has significant limitations; complete reliance on manual labor is not only inefficient but also makes it difficult to achieve stable process repeatability, severely hindering the battery manufacturing industry's potential to develop towards large-scale, high-efficiency, and high-quality operations.

[0006] Therefore, there is an urgent need in this field for a new technical solution to address the aforementioned technical problems. Utility Model Content

[0007] The purpose of this application is to provide an assembly device for battery cell components, which can improve the consistency of battery cell component assembly, increase welding yield and assembly efficiency, and provide a reference for subsequent production line automation.

[0008] Specifically, this application provides an assembly device for a battery cell assembly, including: a battery cell assembly mechanism for assembling individual battery cells into a battery cell assembly; and a riveting mechanism for connecting the tabs and fluid conductors of the battery cell assembly; wherein the riveting mechanism includes a main structural component and a clamping mechanism, the main structural component for placing the assembled battery cell assembly, and the riveting mechanism for riveting the tabs and fluid conductors of the assembled battery cell assembly.

[0009] In one possible implementation, the main structural component includes: a frame body for placing the assembled battery cell assembly; a main guide post disposed on the frame body, with the clamping mechanism connected to the guide post; and a driving member, the driving end of which is connected to the clamping mechanism for driving the clamping mechanism to move along the main guide post, so that the tabs and fluid guides of the assembled battery cell assembly are riveted together.

[0010] In one possible implementation, the main structural component further includes: a pressure reducing valve, disposed on the frame body and connected to the drive component, for adjusting the air pressure of the drive component; a manual valve, disposed on the frame body and connected to both the pressure reducing valve and the drive component, for manually adjusting the movement of the drive component; and a limiting block, disposed on the frame body, for restricting the assembled battery cell assembly on the frame body.

[0011] In one possible implementation, the clamping mechanism includes: a push plate mounting plate abutting against the main structural member and driven to move by the main structural member; a cell clamping member disposed on the push plate mounting plate for clamping the cell to form a cell assembly; an electrode clamping member disposed on the push plate mounting plate for clamping the electrode to rivet with the fluid guide of the cell assembly; and a punch disposed on the push plate mounting plate for passing through the clamped electrode and fluid guide to rivet the clamped electrode and fluid guide together by rivets.

[0012] In one possible implementation, the cell clamping member includes: a cell pre-pressure plate for abutting against the cell assembly to apply an initial clamping force to the cell assembly; a cell pre-pressure plate guide post disposed on the push plate mounting plate to allow the cell pre-pressure plate to move along the cell pre-pressure plate guide post; and a cell pre-pressure plate spring sleeved on the cell pre-pressure plate guide post and abutting against the cell pre-pressure plate for buffering and elastically restoring the cell pre-pressure plate.

[0013] In one possible implementation, the tab clamping member includes: a tab preload plate for abutting against the tab to apply an initial clamping force to the tab; a tab preload plate guide post disposed on the push plate mounting plate to allow the tab preload plate to move along the tab preload plate guide post; and a tab preload plate spring sleeved on the tab preload plate guide post and abutting against the tab preload plate for buffering and elastically restoring the tab preload plate.

[0014] In one possible implementation, the punch is provided with a guide cone to facilitate the riveting of the rivet to the tab and the fluid guide through the tab and the fluid guide.

[0015] In one possible implementation, the cell assembly mechanism includes: a cell assembly component for placing cell cells and assembling individual cell cells into cell assemblies; and a limiting component disposed on the cell assembly component for limiting the cell cells on the cell assembly component during the process of assembling the cell cells into cell assemblies.

[0016] In one possible implementation, the cell assembly component includes: a cell mounting plate for placing cell cells; a cover plate adapted to the cell mounting plate to assemble individual cell cells into a cell assembly; and a handle disposed on the side of the cell mounting plate for pulling the cell cells on the cell mounting plate.

[0017] In one possible implementation, the limiting member includes: a limiting plate disposed circumferentially around the cell assembly member to restrict the cell onto the cell assembly member; and a pin inserted into the limiting plate to lock the cell onto the cell assembly member.

[0018] The battery cell assembly apparatus provided in the embodiments of this application has the following beneficial effects in the field of battery manufacturing: 1. By adopting automated assembly technology, this device overcomes process defects such as poor battery consistency and unstable welding quality caused by manual operation, ensuring that the assembly accuracy and welding quality of each battery cell assembly reach a uniform high standard.

[0019] 2. Significantly improved assembly efficiency and product yield. Compared to the inefficiency and high defect rate of traditional manual assembly methods, this device increases production speed and keeps the product defect rate at an extremely low level, providing a reliable guarantee for large-scale, high-quality battery production.

[0020] 3. The design concept and technical solution of this device have significant reference value. It provides valuable practical experience and technical guidance for the planning and design of subsequent automated production lines for mass battery production, and helps to promote the automation upgrade process of the entire battery manufacturing industry. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, in the drawings, the same parts use the same reference numerals, and the drawings are not drawn to scale.

[0022] Figure 1 This diagram shows a structural schematic of the battery cell assembly apparatus provided in an embodiment of this application; Figure 2 This diagram illustrates the structure of the clamping mechanism provided in an embodiment of this application. Figure 3 This paper shows a schematic diagram of the battery cell assembly mechanism provided in an embodiment of this application; Figure 4 A schematic diagram of the structure of the punch provided in the embodiment of this application is shown.

[0023] Explanation of reference numerals in the attached figures: 1. Cell assembly mechanism; 11. Cell assembly components; 111. Cell mounting plate; 112. Cover plate; 113. Handle; 12. Limiting components; 121. Limiting plate; 122. Pin; 2. Riveting mechanism; 21. Main structural component; 211. Frame main body; 212. Main body guide post; 213. Drive component; 214. Pressure reducing valve; 215. Manual valve; 216. Limiting block; 22. Clamping mechanism; 221. Push plate mounting plate; 222. Cell clamping component; 2221. Cell pre-pressure plate; 2222. Cell pre-pressure plate guide post; 2223. Cell pre-pressure plate spring; 223. Electrode clamping component; 2231. Electrode pre-pressure plate; 2232. Electrode pre-pressure plate guide post; 2233. Electrode pre-pressure plate spring; 224. Punch; 2241. Guide cone. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] With the continuous progress and innovation of modern industrial technology, the production process system in the battery manufacturing field has become quite mature and complete. However, in actual large-scale production practice, the connection and assembly process between the battery tabs and the fluid conductors still faces several key technical challenges. These problems seriously restrict the improvement of product quality and production efficiency. Specifically, the current technical bottlenecks are mainly reflected in the following important aspects: Firstly, in traditional manual assembly processes, the lack of specialized positioning devices and precision guiding mechanisms makes it difficult for operators to accurately control the relative position of the tabs and the fluid guides. This lack of positioning accuracy directly leads to difficulties in ensuring product consistency, significant fluctuations in welding quality, and a high likelihood of defects such as incomplete or false welds, severely impacting the reliability and lifespan of battery products.

[0026] Secondly, the traditional assembly model, which relies on manual operation, not only suffers from inherent low production efficiency and cannot adapt to the pace of modern large-scale production, but also suffers from a persistently high product defect rate due to the inherent uncertainty and individual differences in manual operation. This situation not only results in a large waste of raw materials but also significantly increases the company's overall production costs and weakens the product's market competitiveness.

[0027] Finally, from the perspective of the overall development of the industry, the battery manufacturing sector currently lacks mature overall solutions for automated production lines and a technical standard system that can be used as a reference. This lack of key technological reserves seriously hinders the transformation and upgrading of the battery manufacturing industry towards intelligence and automation, and restricts the improvement of the overall technological level of the industry.

[0028] This application aims to effectively solve at least one or more of the technical problems mentioned above, and specifically designs and provides an assembly device for battery cell components. Through structural design and intelligent assembly processes, this device not only significantly improves the consistency of battery cell components during assembly, ensuring that the assembly precision of each battery cell component meets standardized requirements, but also greatly increases the yield rate of the welding process and reduces the generation of defective products. Furthermore, by optimizing the assembly process and adopting efficient automation technology, this device significantly improves overall assembly efficiency, providing a reliable technical reference and practical foundation for the subsequent realization of fully automated production lines, and contributing to the automation upgrade of the entire battery cell component manufacturing industry.

[0029] Specifically, such as Figures 1 to 4 As shown (all content in this embodiment is based on...) Figures 1 to 4 This application provides an assembly device for a battery cell assembly, including a battery cell assembly mechanism 1 and a riveting mechanism 2. The battery cell assembly mechanism 1 is used to assemble individual battery cells into a battery cell assembly; the riveting mechanism 2 is used to connect the tabs and the fluid conductor of the battery cell assembly; wherein, the riveting mechanism includes a main structural component 21 and a pressing mechanism 22, the main structural component 21 is used to place the assembled battery cell assembly, and the riveting mechanism is used to rivet the tabs and the fluid conductor of the assembled battery cell assembly.

[0030] In an additional example, the cell assembly mechanism 1 in this embodiment of the application has an automated control system. This system can achieve precise control of the cell assembly process through programming, including automatic sorting, positioning, fixing, and connection of the cells. This automated control not only improves production efficiency but also significantly reduces the error rate and labor intensity of manual operation. Simultaneously, the system also has self-diagnosis and fault alarm functions. Once an abnormality is detected, it can immediately stop production and issue an alarm, thereby ensuring the safety and continuity of the production process.

[0031] In addition to the main structural component 21 and the clamping mechanism 22, the riveting mechanism 2 may also include a sensor system for detecting riveting quality. This system can monitor key parameters such as temperature, pressure, and deformation at the riveting point in real time during the riveting process, ensuring that the riveting quality meets predetermined standards. Furthermore, the riveting mechanism 2 may also be equipped with a quick mold change system, enabling the device to quickly adapt to the production needs of battery cell components of different specifications and models, greatly improving the flexibility and adaptability of the equipment.

[0032] In practical applications, the assembly device provided in this embodiment also takes into account ease of operation and simplicity of maintenance. Key components of the device are designed with a modular structure, facilitating quick disassembly and replacement, thereby shortening maintenance time and improving equipment operating efficiency.

[0033] In one possible implementation, the main structural component 21 includes a frame body 211, a main guide post 212, and a driving component 213: the frame body 211 is used to place the assembled battery cell assembly; the main guide post 212 is disposed on the frame body 211, and a clamping mechanism 22 is connected to the main guide post 212; the driving end of the driving component 213 is connected to the clamping mechanism 22, and is used to drive the clamping mechanism 22 to move along the main guide post 212 so that the tabs and fluid conductors of the assembled battery cell assembly are riveted together.

[0034] In a specific example, the main structural component 21 mainly consists of three key parts: the frame body 211, the main guide post 212, and the driving component 213. The frame body 211 serves as the basic support structure for the entire device, and its interior may include positioning slots and fixing devices for precise placement and fixation of the assembled battery cell assembly. The main guide post 212 is made of high-strength metal material and is vertically positioned at the four corners of the frame body 211. Precision machining ensures its straightness and surface finish. An adjustable clamping mechanism 22 is connected to the upper end of the main guide post 212. The driving component 213 can be a cylinder, with its drive end connected to the clamping mechanism 22 via a coupling, enabling precise control of the clamping mechanism 22's up-and-down movement along the main guide post 212. Once the battery cell assembly is in place, the driving component 213 drives the clamping mechanism 22 to smoothly press down, ensuring a reliable riveting connection between the assembled battery cell assembly's tabs and the fluid guide under a preset pressure, guaranteeing the stability and consistency of electrical contact.

[0035] To ensure operational safety and convenience, the design of the entire main structural component 21 also takes ergonomic principles into account. The surface treatment of the frame body 211 uses anti-slip materials to ensure the safety of operators during assembly or maintenance. Simultaneously, the connection between the main guide column 212 and the drive component 213 is designed with a safety locking mechanism to prevent accidental movement when not in operation, thereby ensuring operator safety.

[0036] In terms of maintenance and repair, the design of the main structural component 21 also reflects modularity and easy disassembly. The various parts of the frame body 211 are connected by quick couplings and bolts, facilitating rapid disassembly and replacement. Furthermore, the maintenance interfaces of the clamping mechanism 22 and the drive component 213 are designed for easy access, enabling operators to perform routine inspections and maintenance, thereby reducing equipment downtime and improving production efficiency.

[0037] In one possible implementation, the main structural component 21 further includes: a pressure reducing valve 214, a manual valve 215, and a limiting block 216. The pressure reducing valve 214 is disposed on the frame body 211 and connected to the drive component 213, and is used to adjust the air pressure of the drive component 213. The manual valve 215 is disposed on the frame body 211 and connected to the pressure reducing valve 214 and the drive component 213 respectively, and is used to manually adjust the movement of the drive component 213. The limiting block 216 is disposed on the frame body 211 and is used to restrict the assembled battery cell assembly on the frame body 211.

[0038] In a specific example, pressure reducing valve 214 is installed at a specific location on the frame body 211 and reliably connected to the drive component 213 via an air pipeline. Its main function is to monitor and precisely adjust the air pressure parameters of the drive component 213 in real time, ensuring that the air pressure value is always maintained within a preset safe operating range. Manual valve 215 is integrated into an easily accessible area of ​​the frame body 211. This device is connected to both the pressure reducing valve 214 and the drive component 213 via dual pneumatic lines. Its design purpose is to allow operators to flexibly adjust parameters such as the speed and stroke of the drive component 213 manually when automatic control fails or fine adjustments are required. Limiting block 216 is firmly fixed to a predetermined installation position on the frame body 211. The core function of this component is to mechanically constrain the battery cell assembly within a designated area of ​​the frame body 211 after the battery cell assembly process is completed, preventing displacement or loosening during transportation or operation, thereby ensuring the operational safety and structural stability of the entire system.

[0039] More specifically, the manual valve 215 is provided with a first air outlet port, a second air outlet port, an air inlet port, a silencer mounting port, and a reversing handle; switching the direction of the reversing handle can connect the air inlet port to the first air outlet port and the second air outlet port respectively.

[0040] The pressure reducing valve 214 is equipped with a pressure reducing valve outlet port, a pressure reducing valve inlet port, and a pressure reducing valve adjustment knob. Pulling out the adjustment knob and rotating it clockwise increases the atmospheric pressure, while rotating it counterclockwise decreases the output air pressure.

[0041] Furthermore, to further enhance the system's ease of operation and maintenance efficiency, the pressure reducing valve 214 is equipped with an intuitive air pressure display instrument, allowing operators to monitor the air pressure status in real time and promptly detect and handle any abnormalities. Meanwhile, the manual valve 215 may be designed with a locking mechanism to prevent accidental changes to settings during non-operational periods, ensuring stable system operation. The limit block 216 is designed with the diversity of battery cell assemblies in mind, employing an adjustable structural design to accommodate battery cell assemblies of different sizes and shapes, thereby improving the versatility and flexibility of the frame body 211.

[0042] In one possible implementation, the clamping mechanism 22 includes a push plate mounting plate 221, an electrode clamping member 223, a cell clamping member 222, and a punch 224: the push plate mounting plate 221 abuts against the main structural member 21 and is driven to move by the main structural member 21; the cell clamping member 222 is disposed on the push plate mounting plate 221 and is used to clamp the cell to form a cell assembly; the electrode clamping member 223 is disposed on the push plate mounting plate 221 and is used to clamp the electrode to rivet with the fluid guide of the cell assembly; the punch 224 is disposed on the push plate mounting plate 221 and is used to pass through the clamped electrode and the fluid guide to rivet the clamped electrode and the fluid guide together by rivets.

[0043] In a specific example, the push plate mounting plate 221 serves as the motion base platform for the entire mechanism. Its bottom is tightly abutted against the main structural component 21 of the equipment, achieving reciprocating linear motion through the driving action of the main structural component 21. The cell clamping component 222 is fixedly installed on the upper surface of the push plate mounting plate 221. It adopts an elastic pressure block design, which can apply uniform and stable pressure to the cell after the push plate moves into position, ensuring that the materials of each layer of the cell are tightly bonded to form a complete cell assembly. The tab clamping component 223 is also installed on the push plate mounting plate 221, located to the side of the cell clamping component 222. It can firmly press the tab into the designated position, preparing for subsequent riveting with the conductor of the cell assembly. The punch 224, as a connecting component, is vertically installed at a specific position on the push plate mounting plate 221. Its tip has undergone special hardening treatment, enabling it to accurately penetrate both the tab and the conductor when they are fully clamped, forming a standard riveting hole. Finally, a permanent mechanical connection between the tab and the conductor is achieved through rivets.

[0044] To ensure the stability and precision of the entire clamping mechanism 22, the push plate mounting plate 221 is typically made of high-strength metal to withstand the enormous pressure generated during clamping without deformation. Furthermore, the push plate mounting plate 221 is designed with precision guide grooves to ensure the push plate maintains linear movement during operation, preventing deviation and thus guaranteeing the clamping quality of the cell assembly and the tabs. The cell clamping component 222 typically consists of multiple independent clamping blocks, which can be independently adjusted to accommodate cells of different sizes and shapes, ensuring that the cells do not shift or become damaged during clamping. The tab clamping component 223 is designed with adjustable clamping force to accommodate tabs of different thicknesses and materials, while ensuring that the tabs do not slip or deform during riveting.

[0045] As a crucial component connecting the battery cell assembly and the tabs, the punch 224 requires extremely high design and manufacturing standards. The tip of the punch 224 must be sufficiently sharp to easily penetrate the material without damaging the tabs and fluid conductors. Simultaneously, the material selection and heat treatment process of the punch 224 must ensure it maintains sufficient hardness and wear resistance during prolonged use, preventing riveting quality issues caused by wear. In practice, the penetration action of the punch 224 is typically driven by a pneumatic or hydraulic cylinder. Precise control of the punch 224's movement speed and pressure ensures that unnecessary damage to the battery cell assembly is not caused during the riveting process.

[0046] In one possible implementation, the cell clamping member 222 includes a cell pre-pressure plate 2221, a cell pre-pressure plate guide post 2222, and a cell pre-pressure plate spring 2223: the cell pre-pressure plate 2221 is used to abut against the cell assembly to apply an initial clamping force to the cell assembly; the cell pre-pressure plate guide post 2222 is disposed on the push plate mounting plate 221 to allow the cell pre-pressure plate 2221 to move along the cell pre-pressure plate guide post 2222; the cell pre-pressure plate spring 2223 is sleeved on the cell pre-pressure plate guide post 2222 and abuts against the cell pre-pressure plate 2221 for buffering and elastically restoring the cell pre-pressure plate 2221.

[0047] In a specific example, the cell preload plate 2221, as a component that directly contacts the cell assembly, ensures the positional stability of the cell assembly during assembly by applying initial preload. The cell preload plate guide post 2222 is precisely mounted on the push plate mounting plate 221, providing guidance for the cell preload plate 2221 and enabling it to move smoothly in a straight line along the guide post axis. Furthermore, the cell preload plate spring 2223 is sleeved outside the cell preload plate guide post 2222, with one end in contact with the cell preload plate 2221. This not only provides cushioning and shock absorption during compression but also provides a reliable elastic reset function for the cell preload plate 2221 after pressure release, thereby ensuring the stability and repeatability of the entire compression process.

[0048] In this embodiment, the cell preload plate 2221 is designed with uniformity and stability in contact with the cell assembly in mind, ensuring that the force is evenly distributed across the cell assembly when the initial clamping force is applied, thus avoiding cell damage or performance degradation due to uneven pressure. The shape and size of the cell preload plate 2221 are designed to accommodate cell assemblies of different sizes and shapes, thereby providing optimal clamping effect.

[0049] The placement of the cell preload plate guide posts 2222 ensures the precise movement of the cell preload plate 2221 under pressure. The guide posts are typically made of high-strength materials to withstand wear and pressure during long-term use. They are fixed to the push plate mounting plate 221, which itself is reinforced to ensure stability and rigidity under pressure. The surfaces of the guide posts are treated to be very smooth to reduce friction and ensure smooth movement of the cell preload plate 2221.

[0050] The design of the cell preload plate spring 2223 takes into account the magnitude and stability of its elastic force while providing buffering and reset functions. The selection of spring material and wire diameter are precisely calculated in practical applications to ensure that it maintains its elasticity and performance even after long-term use. Both ends of the spring are in contact with the cell preload plate 2221 and the push plate mounting plate 221 or other fixed structures, respectively. This allows the spring to effectively absorb impact forces when the cell preload plate 2221 is subjected to external forces, reducing potential damage to the cell assembly. When the external force disappears, the spring can push the cell preload plate 2221 back to its initial position, ensuring the reliability and reusability of the entire clamping mechanism 22.

[0051] In one possible implementation, the tab clamping member 223 includes a tab preload plate 2231, a tab preload plate guide post 2232, and a tab preload plate spring 2233: the tab preload plate 2231 is used to abut against the tab to apply an initial clamping force to the tab; the tab preload plate guide post 2232 is disposed on the push plate mounting plate 221 so that the tab preload plate 2231 can move along the tab preload plate guide post 2232; the tab preload plate spring 2233 is sleeved on the tab preload plate guide post 2232 and abuts against the tab preload plate 2231 for buffering and elastically restoring the tab preload plate 2231.

[0052] It should be noted that the electrode clamping component 223 is based on the same principle as the cell clamping component 222 mentioned above, and will not be described again here.

[0053] In one possible implementation, the punch 224 is provided with a guide cone 2241 to facilitate the riveting of the rivet to the tab and the fluid guide through the tab and the fluid guide.

[0054] In a specific example, the end of the punch 224 is specially designed with a tapered guide structure, the guide cone 2241 having a gradually narrowing geometry. This design allows the punch 224 to pass more smoothly through the connection between the tab and the guide fluid, effectively guiding the rivet to precise positioning. During the riveting operation, the guide cone 2241 first contacts the workpiece surface, automatically correcting positional deviations through its tapered profile, ensuring that the subsequent riveting process accurately fixes the rivet to the tab and guide fluid, thereby guaranteeing the strength and reliability of the connection. This structural design not only improves assembly efficiency but also significantly enhances the overall quality of the product.

[0055] In one possible implementation, the cell assembly mechanism 1 includes a cell assembly component 11 and a limiting component 12: the cell assembly component 11 is used to place the cell and assemble the individual cells into a cell assembly; the limiting component 12 is disposed on the cell assembly component 11 and is used to restrict the cell on the cell assembly component 11 during the process of assembling the cell into a cell assembly.

[0056] In a specific example, the cell assembly component 11 serves as the core working platform. Its surface may have cell receiving slots for precisely positioning and placing individual cells to be assembled. Through a precise mechanical transmission system, this component can progressively assemble multiple individual cells into a complete cell assembly according to a preset arrangement and relative positional relationship. The limiting component 12, as an important auxiliary device, is fixedly installed at key positions on the cell assembly component 11. It employs an adjustable clamping mechanism design, which can apply appropriate constraint forces to each individual cell during the cell assembly process, ensuring that the cells remain in the correct position on the cell assembly component 11 at all times. This prevents assembly deviations caused by vibration or displacement, thereby guaranteeing the structural integrity and assembly accuracy of the final cell assembly.

[0057] Furthermore, the limiting member 12 also possesses a certain degree of self-adaptability, capable of fine-tuning according to the size and shape of the battery cell to adapt to the assembly requirements of battery cells of different specifications. This ensures that even with slight dimensional differences between battery cells during assembly, the limiting member 12 can provide stable and uniform pressure, thereby ensuring that each unit of the battery cell assembly fits tightly, achieving the required tightness and stability as designed.

[0058] In one possible implementation, the cell assembly component 11 includes a cell mounting plate 111, a cover plate 112, and a handle 113: the cell mounting plate 111 is used to place the cell; the cover plate 112 is adapted to the cell mounting plate 111 to assemble individual cells into a cell assembly; the handle 113 is disposed on the side of the cell mounting plate 111 for pulling the cell on the cell mounting plate 111.

[0059] In a specific example, the cell mounting plate 111 serves as the basic load-bearing component. Its surface can be designed with positioning structures for precise placement and fixation of cylindrical or square cells. The cover plate 112 engages with the cell mounting plate 111 via snap-fit ​​or bolt connections, forming a closed structure that allows multiple individual cells to be assembled into a complete cell module. Furthermore, a U-shaped handle 113 is specially provided on one edge of the cell mounting plate 111. This handle 113 features a non-slip design, facilitating easy pulling of the entire cell mounting plate 111 and its supported cell assembly during assembly or maintenance. This structural design ensures both the stability of cell assembly and improves operational convenience.

[0060] In one possible implementation, the limiting member 12 includes a limiting plate 121 and a pin 122: the limiting plate 121 is arranged circumferentially around the cell assembly member 11 to limit the cell on the cell assembly member 11; the pin 122 is inserted into the limiting plate 121 to lock the cell on the cell assembly member 11.

[0061] In a specific example, the limiting plate 121 adopts an L-shaped structure design, with its inner diameter matching the outer diameter of the battery cell assembly component 11. It is evenly arranged around the entire circumference of the battery cell assembly component 11, effectively constraining the battery cell and ensuring it is securely fixed to the assembly component 11 without displacement. The pin 122 serves as an auxiliary fixing device, its diameter precisely matching a pre-set hole on the limiting plate 121. When the pin 122 is fully inserted into the corresponding hole on the limiting plate 121, it provides a reliable mechanical locking effect, further enhancing the fixation of the battery cell on the assembly component and preventing loosening or detachment during use. This dual limiting mechanism ensures both ease of assembly and reliable battery cell fixation.

[0062] The battery cell assembly apparatus provided in the embodiments of this application has the following beneficial effects in the field of battery manufacturing: 1. By adopting automated assembly technology, this device overcomes process defects such as poor battery consistency and unstable welding quality caused by manual operation, ensuring that the assembly accuracy and welding quality of each battery cell assembly reach a uniform high standard.

[0063] 2. Significantly improved assembly efficiency and product yield. Compared to the inefficiency and high defect rate of traditional manual assembly methods, this device increases production speed and keeps the product defect rate at an extremely low level, providing a reliable guarantee for large-scale, high-quality battery production.

[0064] 3. The design concept and technical solution of this device have significant reference value. It provides valuable practical experience and technical guidance for the planning and design of subsequent automated production lines for mass battery production, and helps to promote the automation upgrade process of the entire battery manufacturing industry.

[0065] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0066] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0067] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0068] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An assembly apparatus for a battery cell assembly, characterized in that, include: A cell assembly mechanism is used to assemble individual battery cells into cell assemblies. A riveting mechanism is used to connect the tabs and the fluid conductor of the battery cell assembly; The riveting mechanism includes a main structural component and a pressing mechanism. The main structural component is used to place the assembled battery cell assembly, and the riveting mechanism is used to rivet the tabs and fluid guides of the assembled battery cell assembly.

2. The assembly apparatus for the battery cell assembly according to claim 1, characterized in that, The main structural component includes: The main frame is used to hold the assembled battery cell components; A main guide post is disposed on the main frame body, and the clamping mechanism is connected to the main guide post; A driving component, the driving end of which is connected to the clamping mechanism, is used to drive the clamping mechanism to move along the main guide post so that the tabs and fluid conductors of the assembled battery cell assembly are riveted together.

3. The assembly apparatus for the battery cell assembly according to claim 2, characterized in that, The main structural component also includes: A pressure reducing valve is disposed on the main frame body and connected to the drive component, and is used to adjust the air pressure of the drive component; A manual valve is provided on the frame body and connected to the pressure reducing valve and the drive component respectively, for manually adjusting the movement of the drive component; A limiting block is disposed on the frame body to restrict the assembled battery cell assembly on the frame body.

4. The assembly apparatus for the battery cell assembly according to claim 1, characterized in that, The clamping mechanism includes: The push plate mounting plate abuts against the main structural member so as to be driven to move by the main structural member; A cell clamping component is disposed on the push plate mounting plate and is used to clamp the cell to form a cell assembly; A tab clamping member is provided on the push plate mounting plate and is used to clamp the tab so as to rivet it with the fluid guide of the battery cell assembly; A punch, mounted on the push plate mounting plate, is used to pass through the clamped tabs and fluid guide to rivet the clamped tabs and fluid guide.

5. The assembly apparatus for the battery cell assembly according to claim 4, characterized in that, The cell clamping component includes: A cell preload plate is used to press against the cell assembly to apply an initial clamping force to the cell assembly; A cell preload plate guide post is disposed on the push plate mounting plate so that the cell preload plate can move along the cell preload plate guide post; A cell preload plate spring is sleeved on the cell preload plate guide post and abuts against the cell preload plate, serving as a buffer and elastic reset for the cell preload plate.

6. The assembly apparatus for a battery cell assembly according to claim 4, characterized in that, The electrode clamping component includes: The electrode preload plate is used to press against the electrode tab to apply an initial clamping force to the electrode tab; The electrode preload plate guide post is disposed on the push plate mounting plate so that the electrode preload plate can move along the electrode preload plate guide post; The tab preload spring is sleeved on the tab preload plate guide post and abuts against the tab preload plate, and is used for buffering and elastic restoring of the tab preload plate.

7. The assembly apparatus for a battery cell assembly according to claim 4, characterized in that, The punch is provided with a guide cone to facilitate the rivet being riveted to the electrode and the guide fluid by passing through the electrode tab and the guide fluid.

8. The assembly apparatus for a battery cell assembly according to claim 1, characterized in that, The cell assembly mechanism includes: Cell assembly components are used to place battery cells and assemble individual battery cells into cell assemblies. A limiting member is disposed on the cell assembly member to restrict the cell on the cell assembly member during the process of assembling the cell into a cell assembly.

9. The assembly apparatus for a battery cell assembly according to claim 8, characterized in that, The battery cell assembly components include: Cell mounting plate, used to hold battery cells; A cover plate, adapted to the cell mounting plate, to assemble individual cells into cell assemblies; A handle is provided on the side of the cell mounting plate for pulling the cells on the cell mounting plate.

10. The assembly apparatus for a battery cell assembly according to claim 8, characterized in that, The limiting component includes: A limiting plate is arranged circumferentially around the cell assembly component to restrict the cell onto the cell assembly component; A pin is inserted into the limiting plate to lock the battery cell onto the battery cell assembly component.

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