Auxiliary tool for assembling battery cell module

Abstract

The utility model relates to the technical field of battery assembly, and provides an auxiliary tool for assembling a battery cell module, which is characterized in that an upper side plate and a lower side plate are encircled to form a double-side limited accommodating area, and constraining force is synchronously applied to two sides of a battery cell, so that the problem that the battery cell deviates or inclines due to traditional single-side positioning is effectively solved; and the alignment precision of the axes of the multi-layer battery cells is ensured. The locking unit adopts a modularized quick closing mechanism (such as the collaborative design of a rotating shaft pressing plate and a knob handle) to replace a traditional bolt and nut structure, quick closing of the tool and accurate application of constant pressing force are achieved through the rotating shaft pressing plate overturning and 90-degree rotating self-locking mechanism of the knob handle, the complexity of manual tightening operation is avoided, and the working efficiency is improved. The labor intensity is obviously reduced; and the assembly efficiency is improved. The wave profiling structures of the upper and lower side plates are embedded in the circumferential direction of the cylindrical battery cell through the arc-shaped grooves, and are matched with the elastic material to compensate tolerance, so that uniform lamination between battery cell layers is ensured, and the lamination stress is dispersed.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly technology, and in particular to an auxiliary tooling for assembling battery cell modules. Background Technology

[0002] As the demand for battery technology continues to grow in electric vehicles and energy storage systems, battery module assembly technology is also constantly evolving. A battery module consists of multiple battery cells, and its design and assembly process significantly impacts battery performance, stability, thermal management, and safety. During battery module assembly, the arrangement of the cells, connection technology, and fixing processes all play crucial roles.

[0003] Currently, one common design for battery modules is a two-layer cell arrangement. Each cell layer is glued to the sides of the upper and lower layers using a serpentine connector with double-sided adhesive. This bonding structure ensures a stable connection between the cells, and they are pressed together using specialized tooling. After the adhesive cures, the top surface of the cell module is then covered with laminations, and the positive and negative electrodes and nickel plates are welded onto them. This approach effectively improves the mechanical strength and electrical performance of the battery module. However, existing pressing tooling is complex and time-consuming, and the operation is physically demanding for operators. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to propose an auxiliary tooling for battery cell module assembly in order to improve the efficiency of battery cell assembly.

[0005] To achieve the above and other related objectives, this utility model proposes an auxiliary tooling for assembling battery cell modules, comprising:

[0006] Top side panel;

[0007] A lower side plate is disposed below the upper side plate, and the lower side plate and the upper side plate together form a receiving area, which is used to accommodate at least two layers of battery cells.

[0008] A locking unit is used to lock the upper side plate and the lower side plate together.

[0009] In an optional embodiment of this utility model, the locking unit includes two rotating shaft pressure plates, which are respectively hinged to both ends of the lower side plate in the length direction. Each rotating shaft pressure plate includes a first plate and a second plate arranged perpendicularly to each other. The first plate is hinged to the lower side plate, and the second plate is used to press against the upper ends of the upper side plate.

[0010] In an optional embodiment of this utility model, the locking unit includes a knob handle disposed above both ends of the upper side plate, and the second plate has a U-shaped notch or strip hole through which the knob handle passes.

[0011] In an optional embodiment of this utility model, the upper end of the knob handle is a rotating part, which is configured to be able to rotate at least 90°. The length of the rotating part is greater than the width of the U-shaped notch or the strip hole, and the width of the rotating part is less than or equal to the width of the U-shaped notch or the strip hole.

[0012] In an optional embodiment of this utility model, the lower side of the upper side plate and the upper side of the lower side plate are wave-shaped structures, which are used to embed cylindrical battery cells.

[0013] In an optional embodiment of this utility model, an upper stop block is provided below each of the two ends of the upper side plate along its length, and a lower stop block is provided above each of the two ends of the lower side plate along its length.

[0014] In an optional embodiment of this utility model, the upper stop block and the lower stop block are provided with positioning pins and positioning holes that interlock with each other.

[0015] In an optional embodiment of this utility model, handles are respectively provided on the upper side of the upper side plate and the lower side of the lower side plate.

[0016] In an optional embodiment of this utility model, a pad is provided on the lower side of the lower side plate.

[0017] In an optional embodiment of this utility model, the height of the pad is higher than the height of the handle.

[0018] The technical advantages of this invention are as follows: The receiving area formed by the upper and lower side plates adopts a double-sided limiting design. Compared with traditional single-sided positioning fixtures, it can simultaneously apply constraint forces to both sides of the battery cell, effectively preventing the battery cell from shifting or tilting due to uneven force on one side during stacking, and ensuring the axial alignment accuracy of multi-layer battery cells. The locking unit replaces the traditional bolt and nut structure, and achieves rapid closing and releasing through a modular locking mechanism, avoiding the tedious operation of repeatedly tightening bolts manually, and significantly reducing the labor intensity of operators. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the auxiliary tooling for assembling the battery cell module in one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the working process of the auxiliary tooling for assembling the battery cell module in one embodiment of the present invention;

[0022] Figure 3 This is a disassembly diagram of the auxiliary tooling for assembling the battery cell module in one embodiment of the present invention;

[0023] Figure 4 This is a partial structural schematic diagram of the auxiliary tooling for assembling the battery cell module in one embodiment of the present invention;

[0024] Figure 5 This is a partial structural diagram of the battery cell module assembly auxiliary tooling in the closed state according to one embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of the battery cell module assembly auxiliary tooling with the battery cell facing upwards in one embodiment of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1. Battery cell; 10. Upper side plate; 11. Upper stop block; 12. Positioning pin; 20. Lower side plate; 21. Lower stop block; 22. Positioning hole; 30. Rotary shaft pressure plate; 31. First plate; 32. Second plate; 33. U-shaped notch; 40. Knob handle; 50. Handle; 60. Pad. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0028] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0029] With the rapid development of electric vehicles and energy storage systems, battery technology has become a key factor supporting their core energy storage and transmission. As an important component of the battery system, the assembly technology of the battery module has a crucial impact on battery performance, stability, thermal management, and safety. A battery module is typically composed of multiple battery cells, and the arrangement, connection technology, and fixing process of the cells directly affect the working efficiency and lifespan of the battery module.

[0030] Currently, one common design for battery modules is a two-layer cell arrangement. This structure uses serpentine connectors and double-sided adhesive to fix the sides of the upper and lower layers of cells. This bonding method helps ensure a stable connection between the cells, and the cell modules are pressed together using specialized pressing fixtures. After the adhesive cures, subsequent processing of the cell module is carried out, such as lamination, positive and negative electrode welding, and nickel strip connection. This design effectively improves the mechanical strength, electrical performance, and heat dissipation capacity of the battery module, meeting the requirements of high-power, high-energy-density batteries.

[0031] However, existing battery module assembly processes still face several challenges. First, traditional lamination fixtures are typically complex to operate, involving multiple steps and tools, making the entire assembly process cumbersome and time-consuming. Furthermore, operating the lamination fixtures requires significant labor intensity, especially in large-scale production, where repetitive operations and adjustments increase the workload for operators. Therefore, improving the simplicity of the fixtures, reducing operational complexity, and alleviating worker labor intensity have become key issues for improving battery module production efficiency and product quality.

[0032] To address these shortcomings in existing technologies, this invention proposes an innovative battery module assembly method. This method aims to simplify the assembly process, reduce working hours, increase production efficiency, and lower the labor intensity of operators by optimizing tooling design and improving connection processes. This technical solution not only improves the assembly accuracy of battery modules but also further enhances their overall performance, providing a more efficient and reliable battery assembly solution for electric vehicles and energy storage systems.

[0033] To achieve the above objectives and other related objectives, such as Figures 1-6 As shown, in order to achieve the above-mentioned objectives and other related objectives, this utility model proposes an auxiliary tooling for assembling a battery cell module, including an upper side plate 10, a lower side plate 20 and a locking unit.

[0034] The lower side plate 20 is disposed below the upper side plate 10. The lower side plate 20 and the upper side plate 10 together form a receiving area, which is used to accommodate at least two layers of battery cells 1. The upper side plate 10 and the lower side plate 20 together form the receiving area, constituting the basic support frame for stacking battery cells 1. The upper side plate 10, as the top pressing component, is usually made of high-strength metal material (such as aluminum alloy or steel plate), and its surface is designed with positioning grooves or guide ribs for precise alignment with the serpentine plate connectors on the side of the battery cell 1. The lower side plate 20 serves as a load-bearing base, and its bottom can be integrated with anti-slip textures or vacuum adsorption structures to ensure stability during the module pressing process. The rigid combination of the upper and lower side plates 20 forms a closed cavity, constraining the lateral displacement of the battery cell 1 on both sides, avoiding tilting or misalignment of the battery cell 1 caused by unilateral positioning. The inner wall of the side plate is designed as a flat or slightly arc-shaped surface, fully fitting the side of the battery cell 1 to ensure uniform stress distribution during pressing and reduce the risk of deformation of the battery cell 1. The size of the accommodating area can be adapted to different floor height modules through the side panel spacing adjustment mechanism (such as slide rails or telescopic rods), achieving versatility for multiple models.

[0035] The locking unit is used to lock the upper side plate 10 and the lower side plate 20 together. The locking unit employs a modular, quick-closing mechanism, commonly implemented using lever-type latches, pneumatic / hydraulic clamps, etc. The locking unit reduces manual tightening steps and shortens assembly time (e.g., pneumatic locking can complete closure within 1 second). The locking unit can incorporate a spring or ratchet mechanism to maintain constant pressure during the adhesive curing stage, preventing loosening due to vibration or temperature changes. The locking unit can integrate a pressure sensor or displacement feedback device to monitor the locking status in real time and trigger an alarm for abnormal conditions, preventing overvoltage damage to the battery cell 1.

[0036] like Figure 4 , 5As shown, in an optional embodiment of this utility model, the locking unit includes two rotating pressure plates 30. The two rotating pressure plates 30 are respectively hinged to both ends of the lower side plate 20 along its length. Each rotating pressure plate 30 includes a first plate 31 and a second plate 32 arranged perpendicularly to each other. The first plate 31 is hinged to the lower side plate 20, and the second plate 32 is used to press against the upper side plate 10 at both ends. The locking unit of this utility model achieves efficient pressing and releasing functions through the structural innovation of the rotating pressure plate 30. The rotating pressure plate 30 is composed of a first plate 31 and a second plate 32 that are perpendicular to each other. The first plate 31 is connected to both ends of the lower side plate 20 along its length through a hinge mechanism, forming a degree of freedom that can rotate around an axis. The second plate 32 serves as a pressing execution component, covering the surfaces of both ends of the upper side plate 10 through rotational movement when the fixture is closed. When the operator flips the rotating pressure plate 30 to the closed state, the contact surface between the second plate 32 and the upper side plate 10 forms a lever-type pressure transmission path. The first plate 31 acts as a fulcrum, converting the downward pressure into a vertical clamping force, which acts simultaneously on both ends of the upper side plate 10. This structure achieves four-point synchronous pressure through geometric constraints, avoiding pressure imbalance caused by traditional single-point locking. At the same time, the hinge design makes the opening and closing of the pressure plate smooth, allowing for quick locking and unlocking without tools. For example, anti-slip textures or rubber pads can be added to the end of the second plate 32 to enhance the coefficient of friction and prevent displacement caused by vibration during pressing. A limiting groove can be integrated at the hinge between the first plate 31 and the lower side plate 20 to ensure precise control of the pressing angle. This design balances ease of operation and pressure stability, significantly reducing the frequency of manual adjustments, and is suitable for high-frequency assembly operations.

[0037] like Figure 4 , 5As shown, in an optional embodiment of this utility model, the locking unit includes a knob handle 40 disposed above both ends of the upper side plate 10, and the second plate 32 has a U-shaped notch 33 or a strip hole through which the knob handle 40 passes. In this application, a U-shaped notch 33 is preferred. The locking unit further optimizes operational convenience through the coordinated design of the knob handle 40 and the rotating shaft pressure plate 30. The knob handle 40 is disposed above both ends of the upper side plate 10 and forms a mating relationship with the U-shaped notch 33 on the second plate 32 of the rotating shaft pressure plate 30: when the rotating shaft pressure plate 30 rotates around the hinge axis to the closed state, the U-shaped notch 33 on the second plate 32 can quickly fit into the outer edge of the knob handle 40, automatically correcting the pressing position using the guide of the notch, avoiding manual alignment deviation. The advantage of the U-shaped notch 33 over the strip hole is that its opening direction is consistent with the rotation path of the rotating shaft pressure plate 30, eliminating the need for additional adjustment of the handle's horizontal position to complete the engagement, simplifying the operation steps. For example, the surface of the knob handle 40 can be designed with anti-slip textures to enhance grip stability when applying rotational force, while the inner wall of the U-shaped notch 33 can be covered with an elastic material (such as a silicone pad) to cushion contact impact and prevent structural wear caused by hard metal contact. This design, through the dual effects of geometric constraints and physical limits, ensures vertical transmission of pressing force while achieving rapid locking, effectively avoiding the risk of displacement of the pressure plate due to lateral force, and improving the reliability of tooling for repeated use.

[0038] like Figure 4 , 5 As shown, in an optional embodiment of this utility model, the upper end of the knob handle 40 is a rotating part, which is configured to rotate at least 90°. The length of the rotating part is greater than the width of the U-shaped notch 33 or the strip hole, and the width of the rotating part is less than or equal to the width of the U-shaped notch 33 or the strip hole. The knob handle 40 achieves precise control of the pressing force through the geometric features of the rotating part and the matching relationship with the U-shaped notch 33. The length of the rotating part is greater than the width of the U-shaped notch 33, and the width is adapted to the notch size, so that when the rotating part rotates to 90°, its long side forms a surface contact self-locking structure with both sides of the notch, and the linear change of the rotation angle is converted into a vertical pressure increment. For example, in the initial state, the short side of the rotating part is parallel to the notch, and the handle can freely pass through the notch; the long side completely covers the notch opening, forming a stable pressure support and avoiding loosening due to vibration or external force. This design converts the operator's rotation action into a constant pressing force through the mechanical self-locking principle, eliminating the influence of manual force deviation on the adhesive layer adhesion and ensuring the consistency of the pressing quality of different batches of modules. Meanwhile, the ergonomic design of the rotating part (such as a wave-shaped handle or anti-slip texture) reduces rotational resistance, allowing locking and unlocking to be completed with one hand, greatly simplifying the assembly process and reducing operator fatigue, making it suitable for production line operations with high frequency and high precision requirements.

[0039] like Figure 1, 3 As shown, in an optional embodiment of this utility model, the lower side of the upper side plate 10 and the upper side of the lower side plate 20 are wave-shaped contour structures, which are used to embed the cylindrical battery cell 1. The wave-shaped contour structures of the upper side plate 10 and the lower side plate 20 optimize the positioning and pressing stability of the battery cell 1 through geometric adaptation. The wave-shaped contour structure is composed of continuously undulating arc-shaped grooves, the radius of curvature of which matches the outer diameter of the cylindrical battery cell 1, forming an embedded limiting layout of "one groove, one core". When the battery cell 1 is stacked on the upper side of the lower side plate 20, its cylindrical surface is embedded in the wave groove, and the sidewall of the groove forms at least three points of contact with the circumference of the battery cell 1, effectively limiting the rolling or displacement of the battery cell 1 in the horizontal direction; after the upper side plate 10 is pressed down, its wave structure is simultaneously embedded in the surface of the upper battery cell 1, forming a two-way wrapping constraint. For example, the inner wall of the groove can be coated with an elastic material (such as a rubber or silicone layer), which compensates for the diameter tolerance of the battery cell 1 through elastic deformation during pressing, avoiding damage to the surface of the battery cell 1 caused by hard contact. This design improves the arrangement accuracy of the cell array through contour bonding, making the alignment of the serpentine plate connector with the adhesive coating area on the side of the cell more precise. At the same time, the longitudinal continuous distribution of the wave structure can disperse the pressure stress, preventing the risk of cell casing dents or electrolyte leakage caused by single-point pressure. In addition, this structure is compatible with the automated feeding and positioning requirements of cylindrical cells, and is suitable for high-cycle production line operations.

[0040] like Figure 3 As shown, in an optional embodiment of this utility model, an upper stop block 11 is respectively provided below both ends of the upper side plate 10 along its length, and a lower stop block 21 is respectively provided above both ends of the lower side plate 20 along its length. The mating structure of the upper stop block 11 and the lower stop block 21 achieves precise positioning and anti-offset function of the tooling through mechanical limiting and insertion guidance. The upper stop block 11 is fixed below both ends of the upper side plate 10 and has a vertically downward protruding structure; the lower stop block 21 is correspondingly provided above both ends of the lower side plate 20, forming a receiving platform that matches the movement trajectory of the upper stop block 11. When the upper and lower side plates 20 are closed, the bottom surface of the upper stop block 11 contacts the top surface of the lower stop block 21 to form a vertical limiting support, preventing excessive deformation of the side plates due to excessive pressing force.

[0041] like Figure 3As shown, in an optional embodiment of this utility model, the upper stop block 11 and the lower stop block 21 are provided with positioning pins 12 and positioning holes 22 that interlock. The upper stop block 11 integrates the positioning pin 12 (such as a tapered guide post), and the lower stop block 21 has a matching positioning hole 22 (such as a countersunk hole with a chamfer). When the two are inserted, the conical guide automatically corrects the deviation of the side plate closing position. For example, the end of the positioning pin 12 is designed as a tapered cone head, which cooperates with the flared entrance of the positioning hole 22. Even if there is a slight misalignment, the pin can be guided into the hole during the pressing process to achieve dual alignment and locking of the upper and lower side plates 20 in the length and width directions. This structure replaces the traditional manual visual alignment method, eliminates the risk of misalignment of the serpentine plate connectors caused by tooling offset between the battery cell layers, and at the same time, the pin hole cooperation after insertion forms a rigid connection resistant to shear force, avoiding the slight displacement caused by the vibration of the tooling during the welding process, thereby improving the welding yield of the module pole and the assembly.

[0042] like Figure 1-3 As shown, in an optional embodiment of this utility model, handles 50 are respectively provided on the upper side of the upper side plate 10 and the lower side of the lower side plate 20. The handles 50 adopt a concave or convex structure, and the surface is designed with anti-slip texture or covered with soft material (such as rubber) to meet the ergonomic grip requirements. For example, the handle 50 of the upper side plate 10 is a U-shaped metal rod welded to the surface of the plate, while the handle 50 of the lower side plate 20 is integrally formed with the pad block 60. This design allows the operator to hold both sides of the tooling with both hands, so as to achieve smooth lifting and cross-station transfer of the pressed module, avoiding the risk of scratches caused by direct contact with the edge of the side plate. At the same time, the height of the handle 50 matches the thickness of the side plate, ensuring that the tooling does not interfere with each other when stacked, and improving the utilization rate of production line space.

[0043] like Figure 1-3 As shown in an optional embodiment of this utility model, a pad 60 is provided on the lower side of the lower side plate 20. Multiple pads 60 are fixed to the lower side of the lower side plate 20, typically made of nylon, polyurethane, or metal, and connected to the plate body by bolts or welding. The pads 60 are distributed at the four corners of the lower side plate 20 or arranged at equal intervals along its length. Their bottom surfaces are designed as flat or slightly convex arc surfaces, and in some embodiments, anti-slip textures or vacuum adsorption holes are added. For example, the nylon pads 60 absorb the impact force when the tooling is placed through elastic deformation, preventing the lower side plate 20 from making hard contact with the worktable and causing noise or wear. Simultaneously, the height of the pads 60 is adjustable to adapt to worktables of different thicknesses or for horizontal calibration under inclined conditions, ensuring uniform force distribution between the battery cell layers during the pressing process.

[0044] like Figure 1-3As shown in an optional embodiment of this utility model, the height of the pad 60 is higher than the height of the handle 50. The height of the pad 60 is raised relative to the handle 50, so that when the fixture is placed on a flat surface, only the bottom surface of the pad 60 contacts the supporting surface, while the handle 50 is suspended and detached from contact. For example, the metal pad 60 can be made to extend its height by 5-10mm beyond the lowest point of the handle 50 by thickening the base or adding shims. This design avoids surface scratches or structural deformation caused by friction between the handle 50 and the table surface, extending the service life of the handle 50; on the other hand, by using the pad 60 as the sole load-bearing fulcrum, it ensures the overall stability of the fixture's center of gravity and prevents the risk of tilting due to unevenness of the table surface. In addition, the staggered layout of the pad 60 and the handle 50 provides a ventilation gap at the bottom of the fixture, which is beneficial for heat dissipation during the adhesive curing process.

[0045] The above tooling is used as follows:

[0046] After the first layer of battery cell 1 is assembled, the adhesive-coated serpentine plate is laid flat on the surface of battery cell 1. The second layer of battery cell 1 is then stacked in the same direction, forming a sandwich structure of "battery cell 1-serpentine plate-battery cell 1". At this point, the operator holds the handles 50 on both sides of the upper side plate 10 to lift the entire pressing assembly. Using the four sets of positioning pins 12, which are inserted into the positioning holes 22 of the lower side plate 20 for guidance, the upper and lower side plates 20 are quickly aligned. The tapered head design of the positioning pins 12 can automatically correct millimeter-level positional deviations, ensuring that the axes of the upper and lower layers of battery cell 1 coincide and avoiding uneven adhesive coverage caused by misalignment of the serpentine plate.

[0047] When the fixture is closed, the two rotating pressure plates 30 rotate upwards around the hinge axis until the second plate 32 covers both ends of the upper side plate 10. During the rotation process, the U-shaped notch 33 of the rotating pressure plate 30 automatically fits into the transverse knob handle 40 on the boss of the upper side plate 10 through the arc-shaped guide surface. The width of the notch is slightly larger than the diameter of the handle, allowing for a certain range of positional tolerance. When the rotating pressure plate 30 is completely in contact with the surface of the upper side plate 10, the two side walls of the U-shaped notch 33 form a clearance fit with the knob handle 40. At this time, the handle is in a horizontal state and no locking force has been applied.

[0048] The operator rotates the horizontal knob handle 40 by 90°, aligning its long side with the opening direction of the U-shaped notch 33. The geometry of the rotating part (long side greater than the notch width) ensures that it forms surface contact with the top of the notch after rotation. This process replaces traditional bolt tightening, and locking can be completed within 2 seconds with one hand, while the pressure is limited by the mechanical structure to ensure consistency.

[0049] In summary, the wave-shaped contour structure of the upper and lower side plates 20 and the insertion fit of the positioning pins 12 ensure the alignment of the axes between the layers of the cylindrical battery cell 1, and the precise fit of the serpentine plate connector with the glued area on the side of the battery cell 1. The double-sided pressing design, combined with the four-point synchronous pressure of the rotating shaft pressure plate 30, ensures uniform force on the glue layer, avoiding the risk of poor soldering caused by deformation or uneven gaps in the battery cell 1. The rotating shaft pressure plate 30 achieves rapid closure of the tooling through hinged flipping and the guiding fit between the U-shaped notch 33 and the knob handle 40. The 90° rotation self-locking mechanism of the knob handle 40 replaces the traditional bolt tightening, allowing for constant pressure application with one hand, significantly shortening assembly time and reducing labor intensity. The vertical limiting of the upper and lower stops 21 and the shear-resistant design of the positioning pin holes 12 effectively suppress the vibration and displacement of the tooling. The staggered layout of the pad 60 and the handle 50 avoids wear during handling, while ensuring the stability of the center of gravity when the tooling is placed, reducing the risk of tipping. The adjustable size of the accommodating area can accommodate multiple specifications of battery cells 1. The elastic material covering the wave-shaped groove compensates for the tolerances of battery cells 1 and extends the service life of the tooling. Through the collaborative design of mechanical self-locking, geometric guidance and human-machine interaction, this tooling comprehensively improves the assembly efficiency, consistency and process reliability of battery cell 1 modules, meeting the high-precision and high-cycle manufacturing requirements of power batteries.

[0050] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0051] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0052] Throughout this specification, references to "an embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the present invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the present invention described and illustrated herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0053] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0054] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a capability of separation or combination that is unclear, a combination of components or steps will also be considered as indicated.

[0055] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0056] The above description of the embodiments shown in this utility model (including the content set forth in the abstract of the specification) is not intended to be an exhaustive enumeration or to limit the utility model to the precise forms disclosed herein. Although specific embodiments and examples of the utility model have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the utility model, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the utility model in accordance with the above description of the embodiments described herein, and such modifications will be within the spirit and scope of the utility model.

[0057] This document has generally described the systems and methods in detail to aid in understanding the present invention. Furthermore, various specific details have been set forth to provide a general understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention can be practiced without one or more specific details, or using other devices, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0058] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. An auxiliary tooling for assembling battery cell modules, characterized in that, include: Top side panel; A lower side plate is disposed below the upper side plate, and the lower side plate and the upper side plate together form a receiving area, which is used to accommodate at least two layers of battery cells. A locking unit is used to lock the upper side plate and the lower side plate together.

2. The auxiliary tooling for assembling a battery cell module according to claim 1, characterized in that, The locking unit includes two pivot plates, which are respectively hinged to both ends of the lower side plate along its length. Each pivot plate includes a first plate and a second plate arranged perpendicularly to each other. The first plate is hinged to the lower side plate, and the second plate is used to press against the upper side plate at both ends.

3. The auxiliary tooling for assembling a battery cell module according to claim 2, characterized in that, The locking unit includes a knob handle located above both ends of the upper side plate, and the second plate has a U-shaped notch or strip hole through which the knob handle passes.

4. The auxiliary tooling for assembling a battery cell module according to claim 3, characterized in that, The upper end of the knob handle is a rotating part, which is configured to rotate at least 90°. The length of the rotating part is greater than the width of the U-shaped notch or the strip hole, and the width of the rotating part is less than or equal to the width of the U-shaped notch or the strip hole.

5. The auxiliary tooling for assembling a battery cell module according to claim 1, characterized in that, The lower side of the upper side plate and the upper side of the lower side plate are wave-shaped structures, which are used to embed cylindrical battery cells.

6. The auxiliary tooling for assembling a battery cell module according to claim 1, characterized in that, An upper stop block is provided at each of the two ends below the upper side plate along its length, and a lower stop block is provided at each of the two ends above the lower side plate along its length.

7. The auxiliary tooling for assembling a battery cell module according to claim 6, characterized in that, The upper stop and the lower stop are provided with positioning pins and positioning holes that interlock with each other.

8. The auxiliary tooling for assembling a battery cell module according to claim 1, characterized in that, Handles are provided on the upper side of the upper side plate and the lower side of the lower side plate.

9. The auxiliary tooling for assembling a battery cell module according to claim 8, characterized in that, A pad is provided on the lower side of the lower side plate.

10. The auxiliary tooling for assembling a battery cell module according to claim 9, characterized in that, The height of the pad is higher than the height of the handle.

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