A battery packaging enclosure
By introducing a recessed design and a snap-fit slot structure into the battery packaging shell, the problem of assembly difficulties has been solved, enabling an efficient and reliable battery packaging process and improving production efficiency and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENGYANG COOLPAD NEW ENERGY TECH CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-07-21
AI Technical Summary
The assembly of existing battery packaging shells is difficult, resulting in low production efficiency and affecting structural integrity and quality reliability.
The battery casing features a recessed design, with protrusions inserted into the grooves and mechanically connected via slots and clips, secured with adhesive. This design reduces assembly difficulty and improves sealing and vibration resistance.
It improves the assembly efficiency and yield of battery packaging shells, ensures structural integrity and sealing, and reduces the labor intensity of workers and production costs.
Smart Images

Figure CN224537170U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery casing manufacturing technology, and in particular to a battery encapsulation casing. Background Technology
[0002] In existing technologies, to effectively prevent battery leakage and ensure battery performance and safety, battery casings widely adopt a sealed structure design. Currently, most mainstream battery casings on the market consist of two separate casings combined together. The conventional sealing process involves filling a groove in one of the casings with adhesive, then tightly fitting the two casings together. The connection is achieved through the bonding effect of the adhesive, and a snap-fit structure is used for further reinforcement to enhance the overall sealing performance and structural stability.
[0003] However, in actual packaging operations, this process has revealed many problems that urgently need to be solved. The assembly operation is extremely difficult when the clips and slots are engaged, significantly slowing down production efficiency. Furthermore, forced assembly can potentially cause irreversible damage to the battery casing structure, directly affecting the structural integrity and reliability of the product. Utility Model Content
[0004] The purpose of this utility model is to provide a battery packaging shell, aiming to solve the technical problems of difficult assembly and decreased yield of existing battery packaging shells. To solve the above technical problems, this utility model adopts the following technical solution:
[0005] This application provides a battery encapsulation shell, including a shell and a cover disposed on the upper part of the shell. A boss is provided on the lower part of the cover. The top surface of the shell protrudes to form a first wall and a second wall. The first wall and the second wall are arranged at intervals to form a groove for the boss to be inserted into. The first wall is provided with a slot, and the boss is provided with a buckle that engages with the slot. The surface of the second wall facing the first wall is provided with a recess corresponding to the slot, and the recess penetrates the top surface of the second wall.
[0006] Alternatively, the recess extends downward along the top surface of the second wall in a sloping manner to a height below the slot.
[0007] Alternatively, the recess extends through the surface of the second wall away from the first wall.
[0008] Optionally, the length of the recess is greater than the length of the slot.
[0009] Optionally, both the first wall and the second wall are arranged around the perimeter of the shell.
[0010] Optionally, the second wall is lower than the first wall.
[0011] Optionally, a tapered ramp is provided above the slot, extending to the top surface of the first wall.
[0012] Optionally, the groove has a structure that is wider at the top and narrower at the bottom.
[0013] Optionally, there is a gap between the groove and the boss.
[0014] Optionally, the cover has a hole for hinged to the handle.
[0015] The beneficial effects of the battery packaging shell provided by this utility model are as follows: During the assembly process of the battery packaging shell, the recessed design causes the boss to undergo controllable deformation. The recess is located on the top surface of the second wall and is set in accordance with the slot. When the buckle is pressed and inserted, it provides a buffer space for the deformation of the boss. The recessed design corresponding to the slot makes it easier for the boss to deform during battery packaging, making the buckle and slot engagement process smoother, and greatly improving assembly efficiency and yield. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 these drawings without creative effort.
[0017] Figure 1 An assembly drawing of the battery packaging shell provided for an embodiment of this utility model;
[0018] Figure 2 Exploded view of the battery packaging shell provided in the embodiment of this utility model
[0019] Figure 3 A cross-sectional view of the battery packaging shell assembly provided in an embodiment of this utility model;
[0020] Figure 4 for Figure 3 Enlarged view of A in the middle;
[0021] Figure 5 A schematic diagram of the shell structure provided for an embodiment of this utility model;
[0022] Figure 6 This is a schematic diagram of the structure of the cap provided in an embodiment of the present utility model.
[0023] The following are the labeling elements in the figure:
[0024] 1. Shell;
[0025] 11. First wall; 12. Second wall; 121. Recess;
[0026] 13. Groove; 14. Slot; 15. Bevel;
[0027] 2. Cover;
[0028] 21. Boss; 22. Buckle; 23. Hole. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0030] Throughout this specification, references to "one embodiment" or "embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in another embodiment of this application," "in one embodiment," or "in some embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.
[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.
[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] Please refer to Figure 1-6The battery packaging shell in the embodiments of this utility model will now be described.
[0035] Please refer to Figure 1-3 This application provides a battery encapsulation shell, including a shell 1 and a cover 2 disposed on the upper part of the shell 1. A boss 21 is provided on the lower part of the cover 2. The top surface of the shell 1 protrudes to form a first wall 11 and a second wall 12. The first wall 11 and the second wall 12 are arranged at intervals to form grooves 13 for the boss 21 to be inserted into. The first wall 11 is provided with a slot 14, and the boss 21 is provided with a buckle 22 that engages with the slot 14. The surface of the second wall 12 facing the first wall 11 is provided with a recess 121 corresponding to the slot 14, and the recess 121 penetrates the top surface of the second wall 12. During the encapsulation process, adhesive is injected into the groove 13. During adhesive injection and assembly, it is no longer necessary to flip the shell 1, significantly reducing the labor intensity of workers. The nested fit of the boss 21 and the groove 13, and the mechanical connection of the buckle 22 and the slot 14, achieve double fixation of the shell 1 and the cover 2, improve waterproof and vibration resistance, ensure sealing and provide detachability. The design of the recess 121 makes the boss 21 more easily deformable during battery encapsulation, and makes the snap-fit process of the buckle 22 and the slot 14 smoother, reducing assembly difficulty and improving work efficiency.
[0036] In this embodiment, the cover 2 is also provided with two electrode holes, each marked with a positive and negative symbol. This avoids the risk of short circuits caused by incorrect electrode installation.
[0037] Typically, both the housing 1 and the cover 2 are injection molded from plastic, and the material is any one of PP, ABS and PC. They are high-strength insulating materials. By gluing the housing 1 and the cover 2 together, the housing is ensured to have chemical corrosion resistance, high temperature resistance, waterproof sealing and impact resistance.
[0038] In another embodiment of this application, please refer to Figure 5 The recess 121 extends downwards along the top surface of the second wall 12 in a sloping manner to a height lower than the slot 14. The sloping structure of the recess 121, lower than the slot 14, is to prevent adhesive from seeping into the slot 14, thus solving the problem of the slot 14 becoming contaminated with adhesive and jamming during assembly. When the buckle 22 is pressed into the slot 14, the sloping structure decomposes the vertical pressure into a lateral component, causing controllable elastic bending at the base of the buckle 22.
[0039] In another embodiment of this application, please refer to Figure 5 The recess 121 penetrates the surface of the second wall 12 away from the first wall 11. During assembly, it disperses the assembly pressure and provides more space for the snap fastener 22 to deform, making the boss 21 more easily deformable.
[0040] In another embodiment of this application, please refer to Figure 5 The length of the recess 121 is greater than the length of the slot 14. The sloping extension acts as a deformation buffer, allowing for greater elastic deformation at the base of the buckle when it is inserted.
[0041] In another embodiment of this application, please refer to Figure 2 The first wall 11 and the second wall 12 are both arranged around the circumference of the shell 1. This forms an uninterrupted sealing layer, resulting in a more uniform sealing effect and a more consistent distribution of adhesive, thereby improving the overall sealing performance.
[0042] In another embodiment of this application, please refer to Figure 3 The second wall 12 is lower than the first wall 11. The stepped height difference facilitates the guiding and positioning of the boss 21 during insertion, reducing assembly difficulty.
[0043] In another embodiment of this application, please refer to Figure 3-5 A tapered ramp 15 is provided above the slot 14, extending to the top surface of the first wall 11. The ramp 15 above the slot 14 makes it easier for the buckle 22 to slide into the slot 14, serving as a guide, reducing assembly resistance, and improving production efficiency.
[0044] In another embodiment of this application, please refer to Figure 4 The groove 13 has a structure that is wider at the top and narrower at the bottom. This creates an automatic centering effect for the boss 21, ensuring assembly accuracy.
[0045] In another embodiment of this application, please refer to Figure 4 There is a gap between the groove 13 and the boss 21. The gap in the vertical direction is to store glue and increase the contact area between the groove 13, the boss 21 and the glue. The gap in the horizontal direction allows the buckle 22 to undergo slight deformation when it is engaged, which compensates for manufacturing tolerances and avoids rigid interference.
[0046] In another embodiment of this application, please refer to Figure 6 The cover 2 has a hole 23 for hinged connection with the handle. The handle is mounted on the cover 2 through the hole 23, has load-bearing and tensile strength, and is convenient for workers to handle. The inner wall of the handle has anti-slip texture to increase friction with the hand or robotic arm, preventing slippage and accidents, and increasing safety. The upper surface of the housing 1 has a storage groove that matches the shape of the handle, making the overall appearance more compact, reducing protruding parts, facilitating storage and transportation, and preventing the handle from occupying extra space when not in use. Storing the handle in the storage groove reduces the risk of accidental collision or snagging during handling or use, and reduces the possibility of damage.
[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A battery packaging casing, characterized in that: The device includes a housing (1) and a cover (2) located on the upper part of the housing (1). The lower part of the cover (2) is provided with a boss (21). The top surface of the housing (1) protrudes to form a first wall (11) and a second wall (12). The first wall (11) and the second wall (12) are arranged at intervals to form a groove (13) for the boss (21) to be inserted. The first wall (11) is provided with a slot (14). The boss (21) is provided with a buckle (22) that engages with the slot (14). The surface of the second wall (12) facing the first wall (11) is provided with a recess (121) corresponding to the slot (14). The recess (121) penetrates the top surface of the second wall (12). The recess (121) extends downward along the top surface of the second wall (12) in a sloping manner to a height lower than the slot (14); The recess (121) penetrates the surface of the second wall (12) away from the first wall (11); A tapered ramp (15) is provided above the slot (14), and the ramp (15) extends to the top surface of the first wall (11); The groove (13) has a structure that is wider at the top and narrower at the bottom.
2. The battery packaging casing according to claim 1, characterized in that: The length of the recess (121) is greater than the length of the slot (14).
3. The battery packaging casing according to claim 1, characterized in that: The first wall (11) and the second wall (12) are both arranged around the perimeter of the shell (1).
4. The battery packaging casing according to claim 1, characterized in that: The second wall (12) is lower than the first wall (11).
5. The battery packaging casing according to claim 1, characterized in that: There is a gap between the groove (13) and the boss (21).
6. The battery packaging casing according to claim 1, characterized in that: The cover (2) is provided with a hole (23) for hinged to the handle.