A package and battery assembly

Abstract

The utility model discloses a kind of packaging and battery assembly, packaging is provided with pole post limiting slot, pole post limiting slot is used to adapt the pole post of battery, the edge of pole post limiting slot opening where packaging is located is provided with first chamfer.The utility model can accurately limit monomer battery by setting the pole post limiting slot matched with pole post on packaging, improves the structural firmness and transport safety of battery assembly.Meanwhile, by setting first chamfer on the edge of pole post limiting slot opening, the protection patch on battery top cover can be avoided, effectively prevent the direct extrusion of packaging to protection patch, to avoid the occurrence of overflow phenomenon, guarantee the safety and long-term reliability of battery assembly.Therefore, the technical scheme not only improves the assembly efficiency and product quality of battery assembly, but also prolongs the service life of battery, with good application prospect.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging components, and more particularly to a packaging component and a battery assembly. Background Technology

[0002] With the rapid development of new energy vehicles, energy storage systems, and other fields, battery modules, as their core energy units, face higher requirements for their structural design and safety performance. Existing battery modules typically consist of multiple individual cells assembled within a housing structure. During practical applications and transportation, individual cells are susceptible to external impacts or vibrations within the housing. If the limiting measures are inadequate, individual cells may wobble or shift within the housing, affecting the structural stability and safety of the battery module. Furthermore, protective patches are usually affixed to the terminal area on the battery top cover. However, existing limiting structures often do not adequately consider the presence of these protective patches, making them prone to compression during assembly or handling. This can lead to quality issues such as adhesive overflow and warping, affecting the sealing of the battery terminals and the overall quality of the battery module. Utility Model Content

[0003] One objective of this invention is to provide a packaging component that solves the problem of adhesive overflow on the protective patch of the battery top cover.

[0004] To achieve the above objectives, the present invention provides a solution in which: the packaging is provided with a terminal post limiting groove, the terminal post limiting groove is used to fit the battery terminal post, and the edge of the packaging at the opening of the terminal post limiting groove is provided with a first chamfer.

[0005] Optionally, the first chamfer can be a rounded corner or a beveled corner.

[0006] Optionally, the package includes a base and a limiting part, the limiting part is disposed on the base, the limiting part and the base surround to form a pole post limiting groove, and the edge of the limiting part at the opening of the pole post limiting groove is provided with a first chamfer.

[0007] Optionally, the width of the limiting portion gradually decreases from the base to the limiting portion.

[0008] Optionally, the packaging includes a first retaining ring disposed on the base, the first retaining ring surrounding the limiting portion, the first retaining ring being higher than the limiting portion, and the first retaining ring and the base forming a first retaining groove.

[0009] Optionally, the first retaining ring and the limiting part are spaced apart, and the distance between the first retaining ring and the limiting part is L mm, where 1≤L≤4.

[0010] Optionally, the packaging has a first connecting groove, which is distributed on the side wall, base and limiting part of the first retaining ring, and the first connecting groove is connected to the pole limiting groove.

[0011] Optionally, the first groove gradually expands outward in the direction away from the base.

[0012] Optionally, the package has a clearance groove for facing the explosion-proof valve of the battery, and the edge of the package at the opening of the clearance groove is provided with a second chamfer.

[0013] Optionally, the package includes a second retaining ring disposed on the side of the base away from the limiting portion, and the second retaining ring and the base together form a second retaining groove.

[0014] Optionally, the package is provided with a second connecting groove, which is distributed on the side wall and base of the second retaining ring.

[0015] To achieve the above objectives, the present invention provides a solution in which the battery assembly includes a single battery cell, a box, and a packaging component of any of the above. The single battery cell and the packaging component are disposed in the box, and the packaging component is disposed at opposite ends of the single battery cell.

[0016] The beneficial effects of this utility model are as follows: This embodiment effectively solves the problems in the prior art where individual cells are easily displaced and protective patches are easily squeezed, leading to adhesive overflow, during the transportation or assembly of battery modules. Specifically, by setting a terminal post limiting groove on the packaging that matches the terminal post, the individual cells can be precisely positioned, improving the structural robustness and transportation safety of the battery module. Simultaneously, by setting a first chamfer on the edge of the terminal post limiting groove opening, the protective patch on the battery top cover can be avoided, effectively preventing direct squeezing of the protective patch by the packaging, thereby preventing adhesive overflow and ensuring the safety and long-term reliability of the battery module. Therefore, this technical solution not only improves the assembly efficiency and product quality of the battery module but also extends the battery's lifespan, showing promising application prospects. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of the packaging component provided in this embodiment of the present invention from a first-view perspective;

[0019] Figure 2 This is provided by the embodiment of the present utility model. Figure 1 A magnified view of a portion of region A in the middle;

[0020] Figure 3 The packaging provided in this embodiment of the utility model is Figure 1 A schematic diagram of the cross-section along the middle III-III direction;

[0021] Figure 4 This is provided by the embodiment of the present utility model. Figure 3 A magnified view of a portion of region B in the middle;

[0022] Figure 5 This is a structural schematic diagram of the packaging component provided in an embodiment of the present invention from a second perspective.

[0023] Explanation of icon numbers:

[0024] The pole post limiting groove 01, the first connecting groove 02, the clearance groove 03, the second connecting groove 04, and the base 10;

[0025] Limiting part 20, first chamfer 21, second chamfer 23, first retaining ring 30, first retaining groove 31;

[0026] Second retaining ring 40, second retaining groove 41. Detailed Implementation

[0027] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings, clearly and comprehensively demonstrating the technical solution. It should be noted that the listed embodiments are only a part of this utility model, and not all possible implementations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Please see Figures 1 to 4 As shown, Figure 1 This is a structural schematic diagram of the packaging component provided in an embodiment of the present invention from a first-view perspective. Figure 2 This is provided by the embodiment of the present utility model. Figure 1 A magnified view of a portion of region A in the middle. Figure 3 The packaging provided in this embodiment of the utility model is Figure 1 Schematic diagram of the cross section in the middle III-III direction. Figure 4 This is provided by the embodiment of the present utility model. Figure 3 A magnified view of a portion of region B in the middle.

[0029] This embodiment provides a battery assembly, including a single battery cell, a box, and a packaging component. The single battery cell and the packaging component are housed together inside the box, with the packaging component attached to both opposite ends of the single battery cell. The packaging component provides positioning and protection for the single battery cell, preventing it from shaking or shifting inside the box, thus improving the overall structural stability and safety of the assembly. Furthermore, the packaging component has a terminal post limiting groove 01, the size and shape of which are adapted to the terminal post of the single battery cell, allowing the battery terminal post to be embedded within the limiting groove, thereby achieving precise positioning of the single battery cell and preventing displacement during transportation or assembly. In addition, the edge of the packaging component at the opening of the terminal post limiting groove 01 has a first chamfer 21 structure. The first chamfer 21 effectively avoids the protective patch on the battery top cover, preventing the sharp edge of the packaging component from squeezing the protective patch during assembly or transportation. This structural design prevents adhesive overflow from the protective patch, improving the quality and reliability of the battery assembly.

[0030] This embodiment effectively solves the problems of easy displacement of individual cells and easy compression of protective patches leading to glue overflow during the transportation or assembly of battery modules in the prior art. Specifically, by setting a terminal post limiting groove 01 adapted to the terminal post on the packaging, the individual cells can be precisely limited, improving the structural robustness and transportation safety of the battery module. At the same time, by setting a first chamfer 21 on the edge of the opening of the terminal post limiting groove 01, the protective patch on the battery top cover can be avoided, effectively preventing the packaging from directly compressing the protective patch, thereby avoiding glue overflow and ensuring the safety and long-term reliability of the battery module. Therefore, this technical solution not only improves the assembly efficiency and product quality of the battery module, but also extends the battery's service life, and has good application prospects.

[0031] This embodiment, based on the aforementioned battery assembly, further details the design of the first chamfer 21 structure at the opening of the terminal post limiting groove 01 in the packaging component. Specifically, the first chamfer 21 can be a rounded corner structure or a beveled corner structure. A rounded corner refers to transitioning a sharp angle at the edge into an arc structure with a certain radius of curvature, thereby making the edge smooth and rounded. A beveled corner refers to cutting or chamfering the edge at a certain bevel angle, transforming it from a sharp right angle into a transitional structure with a bevel. Both forms of the first chamfer 21 can be selected and applied according to actual needs and manufacturing processes.

[0032] By employing a rounded or beveled design at the opening of the terminal post limiting groove 01 in the packaging, direct compression of the battery top cover protective patch by the sharp edges can be effectively avoided. Traditional right-angled edges, when in contact with the protective patch, are prone to damage or adhesive overflow due to pressure concentration, thus affecting the safety and reliability of the battery assembly. The first chamfer 21 structure, whether rounded or beveled, disperses stress at the edge, reducing localized pressure on the protective patch, effectively protecting its integrity and preventing adhesive overflow caused by compression. Therefore, this technical solution, through the use of rounded or beveled corners, further optimizes the structural design of the battery assembly, improves the safety and product quality during assembly, transportation, and use, and significantly enhances the reliability and lifespan of the battery assembly.

[0033] This embodiment provides a packaging component for a battery assembly, comprising a base 10 and a limiting portion 20. The limiting portion 20 is disposed on the base 10 and protrudes from the surface of the base 10. The limiting portion 20 and the base 10 together form a terminal post limiting groove 01 for accommodating and limiting the battery terminals. Specifically, the edge of the limiting portion 20 at the opening of the terminal post limiting groove 01 is provided with a first chamfer 21. This first chamfer 21 can be a rounded corner or a beveled corner, making the edge of the opening of the terminal post limiting groove 01 smoother and effectively reducing the risk of scratches during assembly. At the same time, the side of the limiting portion 20 away from the terminal post limiting groove 01 is unobstructed, meaning that there are no other structures obstructing this side, thus providing sufficient buffer space for the limiting portion 20. When subjected to external impact or during battery terminal assembly, the limiting portion 20 can undergo moderate elastic deformation, effectively buffering the impact using the unobstructed space. The packaging component can be made of cushioning materials such as foam or cardboard.

[0034] Through the above technical solution, this embodiment effectively solves the technical problems of easy damage to the limiting part 20 and easy crushing damage to the battery terminals caused by insufficient buffer space in traditional packaging. On the one hand, the first chamfer 21 is provided on the edge of the opening of the terminal limiting groove 01, which significantly reduces the risk of scratches and shearing of the battery terminals and protective patches during assembly and transportation, improving the safety and reliability of the product. On the other hand, the side of the limiting part 20 away from the terminal limiting groove 01 is unobstructed, providing a larger buffer space for the limiting part 20 when subjected to external force, enabling the limiting part 20 to fully absorb and disperse the impact of external force, preventing the limiting part 20 from breaking or the terminals from being damaged due to space constraints, and achieving flexible protection for the battery terminals. In summary, through the above structural design, the packaging not only improves the limiting and protection effect of the battery terminals, but also enhances the impact resistance and service life of the overall structure, and has good practical value and promotion prospects.

[0035] This embodiment provides a packaging structure suitable for multi-cell battery modules. The packaging includes a base 10 and multiple limiting portions 20, all of which are disposed on the base 10 and protrude from the surface of the base 10. Each limiting portion 20 and the base 10 form multiple terminal post limiting grooves 01. This structural design allows the packaging to effectively limit and install multiple individual battery cells simultaneously. The position and number of the multiple limiting portions 20 can be flexibly set according to actual installation requirements to accommodate combinations of different specifications and quantities of individual battery modules. This structure can be completed using a one-piece molding process or through a modular assembly method.

[0036] This embodiment provides an improved packaging structure, including a base 10 and a limiting portion 20 disposed on the base 10. Specifically, the width of the limiting portion 20 gradually decreases along the direction from the base 10 to the top of the limiting portion 20, that is, the portion of the limiting portion 20 closer to the base 10 is wider, while the portion farther from the base 10 is narrower. This width variation can be integrally formed by molding, so that the limiting portion 20 as a whole has a trapezoidal or inverted trapezoidal structure.

[0037] In practical applications, the packaged pole is inserted into the pole limiting groove 01 formed by the base 10 and the limiting part 20. Based on the gradient change in the width of the limiting part 20, the limiting part 20 closer to the base 10 is wider and thicker, with higher support strength and rigidity, providing strong limiting and support for the pole and preventing the pole from shaking or shifting during transportation or assembly; while the limiting part 20 farther from the base 10 is narrower and relatively thinner, with a certain degree of elasticity and deformability, so it is easy to deform when encountering external force, which can effectively reduce the compressive force on the pole protective sheet and avoid deformation and damage to the protective sheet due to excessive compression.

[0038] This technical solution addresses the problems in existing technologies, such as excessive compressive force on the pole protector and insecure pole support, by designing the limiting part 20 with a gradually decreasing width from the base 10 to the limiting part 20. On one hand, the wider and thicker limiting part 20 closer to the base 10 significantly improves the overall support and stability of the limiting part 20, ensuring the positioning accuracy and stability of the pole within the packaging, preventing displacement or shaking, and effectively protecting the pole body. On the other hand, the limiting part 20 further from the base 10, due to its smaller width and flexible structure, can undergo moderate deformation during assembly or external impact, effectively forming a flexible buffer zone. This significantly reduces the compressive force on the pole protector, preventing deformation and damage. This structure balances support strength and buffer protection, improving the overall functionality and reliability of the packaging. In summary, this technical solution achieves stable limiting and flexible protection of the pole, significantly improving the practical performance of the packaging.

[0039] This embodiment provides a packaging structure for battery positioning and protection. The packaging includes a base 10, a positioning part 20, and a first retaining ring 30. The positioning part 20 is disposed on the base 10 and is used to position the battery terminals. The first retaining ring 30 is also disposed on the base 10 and surrounds the outer periphery of the positioning part 20, and its height is higher than that of the positioning part 20. The first retaining ring 30 and the base 10 together form a first retaining groove 31, the size and shape of which match the battery casing. In practical applications, the battery terminals are inserted into the corresponding positioning structure of the positioning part 20, and the battery casing is embedded in the first retaining groove 31. Since the first retaining ring 30 is higher than the positioning part 20, it can effectively position and surround the battery casing in the vertical and horizontal directions, preventing the battery from shaking, tilting, or falling off during transportation, handling, assembly, etc.

[0040] This technical solution solves the problems of insufficient battery casing stability and easy shaking or displacement in existing packaging structures by setting a first retaining ring 30 higher than the limiting part 20 on the base 10, and forming a first retaining groove 31 by the first retaining ring 30 and the base 10. Specifically, the first retaining ring 30 surrounds the limiting part 20 and is higher than the limiting part 20, forming multiple limiting in the circumferential and height directions of the battery casing, significantly improving the fixing effect of the battery in the packaging. After the battery casing is embedded in the first retaining groove 31, it can effectively prevent the battery from being displaced horizontally or vertically due to external forces during transportation and handling, avoiding battery shaking or tilting, and improving the overall structural stability. At the same time, the retaining groove formed by the first retaining ring 30 and the base 10 can also provide cushioning and protection for the battery casing, reducing the risk of casing damage. In addition, the retaining groove structure can be precisely designed according to the size and shape of different battery casings, improving the compatibility and versatility of the packaging for different battery models. In summary, this technical solution can effectively limit and protect the battery casing, greatly improve the stability and safety of the battery in the packaging, and significantly optimize the practical effect of battery packaging.

[0041] This embodiment provides a packaging structure that facilitates the assembly of individual batteries. The packaging includes a base 10, a first retaining ring 30, and a first retaining groove 31 formed on the first retaining ring 30. Specifically, the first retaining groove 31 is designed such that its cross-section gradually expands outwards in the direction away from the base 10 (i.e., near the packaging opening or the battery assembly direction), forming a trumpet-shaped structure. Thus, when an individual battery is inserted from the packaging opening direction, the outwardly expanding first retaining groove 31 acts as a guide, making it easier for the battery to align and slide smoothly into the first retaining groove 31. Compared to a traditional straight-walled first retaining groove 31, the outwardly expanding structure of this embodiment effectively increases the tolerance range for assembly errors and reduces problems such as assembly jamming and scratching caused by inaccurate positioning. This design is suitable for batteries with different dimensional tolerance ranges, improving the convenience and efficiency of assembly operations.

[0042] This technical solution cleverly solves the problems of poor guidance, high assembly difficulty, and easy jamming or damage during the assembly of single cells in existing packaging by gradually expanding the first retaining groove 31 in the direction away from the base 10. Specifically, the inlet of the expanded first retaining groove 31 is larger than the internal size of the groove, allowing the battery to be smoothly guided into the first retaining groove 31 even if there is a certain positional or angular deviation in the initial stage of assembly, achieving automatic correction and improving the fault tolerance and smoothness of assembly. This not only reduces the operational difficulty during the assembly process but also reduces the risk of the battery rubbing against or being damaged by improper assembly. At the same time, the expanded structure helps improve assembly efficiency and adapts to the automated assembly requirements of high-speed production lines. In summary, this solution, by optimizing the structure of the first retaining groove 31, achieves automatic guidance and smooth insertion during the assembly of single cells, significantly improving the convenience and safety of the assembly process, and increasing the assembly yield and overall reliability of the product.

[0043] This embodiment provides a packaging structure with a limiting and buffering function. The packaging includes a base 10, a limiting part 20, and a first retaining ring 30. The limiting part 20 is disposed on the base 10 and is used to limit the battery terminals. The first retaining ring 30 is also disposed on the base 10, but spaced apart from the limiting part 20, and surrounds the outside of the limiting part 20. Specifically, a clearance space is provided between the first retaining ring 30 and the limiting part 20, with a distance of L millimeters, where 1 ≤ L ≤ 4, for example, 1, 2, 3, 4, etc. This space provides sufficient room for the limiting part 20 to buffer deformation under external force, thus preventing the limiting part 20 from interfering with or prematurely contacting the first retaining ring 30 during deformation. In practical applications, when the battery is installed inside the packaging, if the limiting part 20 deforms due to external impact or pressure, the limiting part 20 can deform freely within the reserved clearance space, avoiding compression or damage between the limiting part 20 and the first retaining ring 30. At the same time, the first retaining ring 30 continues to provide peripheral restraint to the battery casing, ensuring the overall stability of the battery.

[0044] This technical solution creates a buffer space between the first retaining ring 30 and the limiting part 20, limiting the distance L between them to between 1 and 4 millimeters. This effectively solves the problems in existing packaging structures where the limiting part 20 is obstructed during deformation, easily damaged, or leads to insecure battery fixation. Specifically, the buffer space provides a buffer margin for the elastic deformation of the limiting part 20 under external impact or pressure, allowing it to deform according to the actual force without breaking, crushing, or pushing against the first retaining ring 30 due to insufficient space. Furthermore, a reasonable setting of the L value ensures that the limiting part 20 has sufficient deformation space without affecting the effective limiting of the first retaining ring 30 on the battery casing, thus balancing the dual requirements of limiting buffer and structural stability. Through the above structural design, this solution improves the packaging's buffer protection capability for the battery, effectively absorbs external impact forces, reduces the risk of damage to the battery and its packaging structure, achieves safe deformation of the limiting part 20 and reliable battery limiting, and significantly enhances the stability and safety of the assembly structure in practical applications.

[0045] This embodiment provides an improved battery packaging structure. The packaging includes a base 10, a limiting portion 20, a first retaining ring 30, and a first connecting groove 02 formed thereon. Specifically, the first connecting groove 02 is distributed on the side wall of the first retaining ring 30, the base 10, and the limiting portion 20, and its position and size allow it to communicate with the terminal post limiting groove 01. Thus, the first connecting groove 02 connects the terminal post limiting groove 01 and the first retaining groove 31 to the outside of the packaging. When assembling a single battery cell, air can easily be trapped in the relatively enclosed spaces of the terminal post limiting groove 01 and the first retaining groove 31, affecting the smooth placement of the battery. With this solution, air in the terminal post limiting groove 01 and the first retaining groove 31 can be discharged in a timely manner through the first connecting groove 02, effectively reducing the resistance caused by air pressure resistance during assembly and improving assembly efficiency and accuracy. Furthermore, the first connecting groove 02 can extend either along the length direction of the limiting part 20 or along the width direction of the limiting part 20 to adapt to different structural and assembly requirements and ensure smooth air discharge.

[0046] The above technical solution cleverly connects the terminal post limiting groove 01 and the first blocking groove 31 to the outside by setting a first connecting groove 02 on the packaging, solving the problem of difficult battery assembly and inaccurate positioning caused by the inability to expel air in time during battery assembly in the prior art. Specifically, the first connecting groove 02 provides a channel for the air to be discharged from the terminal post limiting groove 01 and the first blocking groove 31, significantly reducing air pressure resistance and preventing gas accumulation from hindering the battery assembly process. Whether the connecting groove extends along the length or width of the limiting part 20, it can effectively cover the air discharge path according to the specific structure, ensuring that air can be discharged in a timely and smooth manner during assembly, improving the convenience and reliability of battery assembly. In addition, this solution can also avoid battery component displacement or damage caused by air pressure, thereby improving the overall assembly efficiency and finished product quality of the packaging. In summary, this technical solution, by reasonably setting the first connecting groove 02, achieves efficient air discharge during the assembly process, solves the air pressure resistance problem, and thus significantly improves the smoothness and accuracy of single battery assembly, enhancing the practicality and reliability of the packaging.

[0047] This embodiment relates to an improved battery packaging structure. The packaging has a clearance groove 03, which aligns with the explosion-proof valve on the battery during assembly. To further enhance the protection of the explosion-proof valve patch, a second chamfer 23 is provided on the edge of the packaging at the opening of the clearance groove 03. This second chamfer 23, by beveling or rounding the edge, prevents direct contact or sharp compression with the explosion-proof valve patch. Specifically, the size and angle of the second chamfer 23 can be optimized according to the actual height and position of the explosion-proof valve patch, ensuring that the packaging does not interfere with or compress the explosion-proof valve patch during battery assembly, subsequent transportation, and use, thereby effectively preventing the explosion-proof valve patch from shifting or even falling off due to external pressure. This structure is suitable for various battery cells with explosion-proof valve patches, ensuring battery safety and product consistency.

[0048] This technical solution solves the technical problem in the prior art where battery explosion-proof valve patches are easily squeezed, displaced, or even detached by the packaging by creating an avoidance groove 03 and setting a second chamfer 23 at the opening of the avoidance groove 03. Specifically, the avoidance groove 03 provides space for the explosion-proof valve patch, preventing direct contact between the patch and the packaging; while the second chamfer 23 further optimizes the contact interface. Even if the patch position is slightly offset, the chamfer structure can "make way" to prevent the patch from being squeezed or rubbed by sharp angles. This design effectively improves the safety of the battery during transportation, assembly, and use, reduces the risk of explosion-proof valve failure, and ensures the reliable protective performance of the battery. In summary, this technical solution, through structural optimization, achieves effective avoidance and protection of the battery explosion-proof valve patch, significantly improves the practicality of the packaging and the safety of the battery assembly, effectively solves the problem of patch protection in battery packaging processes, and thus achieves the technical effect of explosion-proof valve patches being less prone to displacement and operating reliably.

[0049] Please see Figure 5 As shown, Figure 5 This is a structural schematic diagram of the packaging component provided in an embodiment of the present invention from a second perspective.

[0050] This embodiment provides a packaging structure for wrapping and limiting the ends of a single battery cell. A second retaining ring 40 and a base 10 form a second retaining groove 41, used to wrap and limit the ends of the battery. In practical applications, a packaging component is assembled at each of the opposite ends of the single battery cell. The first packaging component uses its first retaining groove 31 to limit and wrap one end of the single battery cell, and the second packaging component uses its second retaining groove 41 to limit and wrap the other end of the single battery cell. By having two packaging components act on both ends of the battery respectively, double-end limiting and protection of the single battery cell is achieved, improving the stability and safety of the battery during transportation, assembly, and subsequent applications.

[0051] This technical solution provides a second retaining ring 40 on the side of the base 10 away from the limiting part 20, forming a second retaining groove 41, which effectively limits and wraps the battery ends. By combining two packaging components acting on both ends of the single battery, both ends are simultaneously limited and protected, preventing axial movement, loosening, or damage due to external forces during handling, assembly, or use. The first retaining groove 31 and the second retaining groove 41 cooperate with both ends of the battery, achieving stable wrapping of the battery ends, ensuring accurate positioning and uniform force distribution within the packaging, thereby reducing safety risks during transportation and assembly.

[0052] This structural design solves the problems of insecure fixing, easy movement, or damage at the ends of individual cells in existing technologies. The second retaining ring 40 and the base 10 form a second retaining groove 41, which effectively limits the battery ends and prevents the battery from shifting within the packaging. The independent packaging at both ends further improves the coverage and reliability of the packaging, achieving stable positioning of the battery assembly at both ends. Therefore, this technical solution significantly improves the safety and reliability of battery transportation and assembly, achieving precise positioning and efficient protection of the battery ends.

[0053] This embodiment relates to a structural design for end packaging of a single battery cell. The packaging component has a second connecting groove 04 formed on the side wall of the second retaining ring 40 and the base 10. This second connecting groove 04 is a through structure, partially located on the side wall of the second retaining ring 40 and partially extending to the base 10, structurally enabling communication from the second retaining groove 41 to the outside of the packaging component. In practical applications, when a single battery cell is inserted into the second retaining groove 41, the second connecting groove 04 forms a channel between the battery and the packaging component, allowing air within the second retaining groove 41 to be quickly discharged through the second connecting groove 04, thereby avoiding problems such as poor assembly and pressure buildup caused by gas retention during installation. The size and shape of the second connecting groove 04 can be optimized according to the required airflow and structural strength, ensuring ventilation efficiency without affecting the mechanical properties and containment function of the packaging component.

[0054] This technical solution creates a second connecting groove 04 on the side wall and base 10 of the second retaining ring 40 of the packaging component. This connecting groove connects the second retaining groove 41 to the external space when the individual battery is inserted, thus enabling rapid gas discharge. This structure effectively solves the problem in existing technologies where, when an individual battery is assembled into the packaging component, the sealed second retaining groove 41 prevents timely gas discharge, leading to assembly resistance, reduced assembly efficiency, and even potential pressure buildup that could affect the structural safety of the battery or packaging component. The second connecting groove 04 allows for rapid air discharge during installation, significantly reducing assembly resistance, improving assembly efficiency, and avoiding the risk of damage to the battery or packaging component from sealing pressure. Therefore, this technical solution achieves smooth assembly of the individual battery and the packaging component, improving assembly efficiency and safety, and achieving the technical effects of efficient gas venting, convenient assembly, and structural safety.

[0055] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0056] Furthermore, when an element is referred to as 'fixed to' or 'set on' another element, it may be directly attached to that element, or there may be other intervening elements between them. When an element is referred to as 'connected to' another element, it can be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0057] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, the designation of features such as "first" and "second" can either explicitly express or imply the presence of at least one such feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0058] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A type of packaging, characterized in that, The packaging has a terminal post limiting groove for fitting the battery terminal post, and the edge of the packaging at the opening of the terminal post limiting groove has a first chamfer.

2. The packaging according to claim 1, characterized in that, The first chamfer is either a rounded corner or a beveled corner.

3. The packaging according to claim 1, characterized in that, The packaging includes a base and a limiting part. The limiting part is disposed on the base, and the limiting part and the base surround to form the pole limiting groove. The edge of the limiting part located at the opening of the pole limiting groove is provided with a first chamfer.

4. The packaging according to claim 3, characterized in that, The width of the limiting portion gradually decreases in the direction from the base to the limiting portion.

5. The packaging according to claim 3, characterized in that, The packaging includes a first retaining ring disposed on the base, the first retaining ring surrounding the limiting portion, the first retaining ring being higher than the limiting portion, and the first retaining ring and the base forming a first retaining groove.

6. The packaging according to claim 5, characterized in that, The first retaining ring and the limiting part are spaced apart, and the distance between the first retaining ring and the limiting part is L mm, where 1≤L≤4.

7. The packaging according to claim 5, characterized in that, The packaging component has a first connecting groove, which is distributed on the side wall of the first retaining ring, the base and the limiting part, and the first connecting groove is connected to the pole post limiting groove.

8. The packaging according to claim 5, characterized in that, The first groove gradually expands outward in a direction away from the base.

9. The packaging according to any one of claims 1 to 8, characterized in that, The packaging has a clearance groove for facing the explosion-proof valve of the battery, and the edge of the packaging at the opening of the clearance groove has a second chamfer.

10. The packaging according to any one of claims 3 to 8, characterized in that, The packaging includes a second retaining ring, which is disposed on the side of the base away from the limiting portion, and the second retaining ring and the base together form a second retaining groove.

11. The packaging according to claim 10, characterized in that, The packaging component has a second connecting groove, which is distributed on the side wall of the second retaining ring and the base.

12. A battery assembly, characterized in that... The battery assembly includes a single battery cell, a box, and a package as described in any one of claims 1 to 11, wherein the single battery cell and the package are disposed in the box, and the package is disposed at opposite ends of the single battery cell.

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