Battery cell packaging structure

Abstract

The embodiment of the utility model provides a battery cell packaging structure, and relates to the technical field of battery production and manufacturing. The battery cell packaging structure comprises a foam plate and a blister tray. A plurality of concave cavities are formed in the foam plate at intervals. And the edge of the foam plate is provided with a groove. And a plurality of concave discs corresponding to the concave cavities are arranged on the blister disc. The concave disc is used for accommodating a battery cell; and the edge of the blister tray is provided with an extension part towards the foam plate. The foam plate is covered with the plastic suction disc so that the concave disc can be in press fit with the concave cavity, and the extending part can be inserted into the groove. According to the battery cell packaging structure, the plastic uptake disc and the foam plate can be fixedly connected, the plastic uptake disc and the foam plate are not prone to being separated, and the battery cell packaging structure can adapt to high-temperature and high-humidity environments and the like and is high in connection stability and durability.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and more specifically, to a battery cell packaging structure. Background Technology

[0002] In the field of battery cell manufacturing technology, blister packs serve as an important carrier for battery cell packaging and transportation, and the method of fixing them to foam directly affects the safety and stability of the battery cells. Blister packs are typically used to support and protect the battery cells, while the foam acts as a buffer and shock absorber, ensuring that the battery cells are not damaged during transportation and storage. To securely fix the foam to the blister pack, existing technologies mainly employ two methods: fixing with plastic nails and adhesive bonding.

[0003] However, plastic staples are prone to detachment or misalignment after prolonged use or exposure to external impacts, causing the blister pack to separate from the foam. This can lead to foam damage or blister pack wrinkles, affecting the packaging effect and safety of the battery cells. The adhesive's strength is also susceptible to environmental factors; for example, high temperature, high humidity, or low temperature environments can weaken the adhesive, causing the blister pack to separate from the foam. Both of these fixing methods suffer from poor stability and insufficient durability in the connection between the blister pack and the foam. Utility Model Content

[0004] The purpose of this utility model is to provide a battery cell packaging structure that can achieve a fixed connection between the blister tray and the foam board, making it difficult for the blister tray and the foam board to separate. It can adapt to environments such as high temperature and high humidity, and has strong connection stability and high durability.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a battery cell packaging structure, comprising:

[0007] A foam board, wherein a plurality of recesses are spaced apart on the foam board and grooves are formed on the edge of the foam board;

[0008] A blister pack has multiple concave discs corresponding to the recessed cavity. The concave discs are used to accommodate battery cells. The edge of the blister pack has an extension facing the foam board. The blister pack is placed on the foam board so that the concave discs press against the recessed cavity. The extension is inserted into the groove.

[0009] In an optional embodiment, the thickness of the extension is greater than the width of the groove, so that the extension and the groove are interference-fitted.

[0010] In an optional embodiment, the thickness of the extension is 0.2mm-5mm, and the width of the groove is 0.1mm-4.9mm.

[0011] In an optional embodiment, the difference between the thickness of the extension and the width of the groove is 0.1 mm.

[0012] In an optional embodiment, the outer dimensions of the blister tray are smaller than the outer dimensions of the foam board.

[0013] In an optional embodiment, the distance between the edge of the blister tray and the edge of the foam board is 5mm-50mm.

[0014] In an optional embodiment, the depth of the trench is greater than half the thickness of the foam board.

[0015] In an optional embodiment, the shape of the cavity is the same as the shape of the concave disk.

[0016] In an optional embodiment, the cavity is provided with a first mating part corresponding to the terminal post of the battery cell, and the concave disk is provided with a second mating part corresponding to the terminal post of the battery cell.

[0017] In an optional embodiment, the first mating part is a first groove, and the second mating part is a second groove.

[0018] The beneficial effects of the battery cell packaging structure provided in this embodiment of the present invention include:

[0019] This utility model discloses a battery cell packaging structure comprising a foam board and a blister tray. Multiple recesses are spaced apart on the foam board. Grooves are formed along the edge of the foam board. The blister tray has multiple concave discs corresponding to the recesses. The concave discs are used to accommodate the battery cells. An extension is provided along the edge of the blister tray facing the foam board. The blister tray is placed on the foam board so that the concave discs press against the recesses, and the extension is inserted into the groove. By providing grooves along the edge of the foam board and extending the edge of the blister tray towards the foam board, the extension is inserted into the groove until the blister tray and the surface of the foam board are adhered, thus fixing the blister tray and the foam board. This utility model's battery cell packaging structure achieves a fixed connection between the blister tray and the foam board, making them difficult to separate. It can adapt to environments with high temperature and high humidity, exhibiting strong connection stability and high durability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the battery cell packaging structure provided in this embodiment;

[0022] Figure 2 This is a partial structural diagram of the battery cell packaging structure provided in this embodiment;

[0023] Figure 3 This is a partial cross-sectional view of the battery cell packaging structure provided in this embodiment.

[0024] Icons: 100 - Battery cell packaging structure; 10 - Blister tray; 11 - Extension; 12 - Concave tray; 121 - Second groove; 20 - Foam board; 21 - Groove; 22 - Cavity; 221 - First groove; 23 - Third groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, 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, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0030] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0031] Please refer to Figures 1-3 The battery cell packaging structure 100 provided by this utility model is applied to the scenario of packaging battery cells.

[0032] The battery cell packaging structure 100 includes a foam board 20 and a blister tray 10. The foam board 20 has multiple recesses 22 spaced apart. Grooves 21 are formed on the edge of the foam board 20. The blister tray 10 has multiple recesses 12 corresponding to the recesses 22. The recesses 12 are used to accommodate the battery cells. An extension 11 is provided on the edge of the blister tray 10 facing the foam board 20. The blister tray 10 covers the foam board 20, so that the recesses 12 press against the recesses 22, and the extension 11 is inserted into the groove 21.

[0033] It is understood that in this embodiment, the blister tray 10 is located above the foam board 20. The concave plate 12 of the blister tray 10 is used to support and protect the battery cell, while the foam board 20 serves as a buffer and shock absorber, ensuring that the battery cell is not damaged during transportation and storage. Specifically, in this embodiment, the blister tray 10 is attached to the upper surface of the foam board 20.

[0034] Specifically, in this embodiment, the extension 11 is formed by bending the edge of the blister tray 10 downwards. A groove 21 is made on the edge of the foam board 20. During installation, the extension 11 is aligned with the foam below and gradually inserted until the lower surface of the blister tray 10 is attached to the upper surface of the foam board 20, thus completing the fixation of the blister tray 10 and the foam board 20.

[0035] Furthermore, the thickness of the extension 11 is greater than the width of the groove 21, so that the extension 11 and the groove 21 are interference-fitted. Specifically, in this embodiment, the extension 11 is formed by bending the edge of the blister tray 10 downwards, and the blister tray 10 is formed by stamping sheet metal. The thickness of the extension 11 is the same as the thickness of the sheet metal before stamping. It can be understood that by interference-fitting the extension 11 and the groove 21, the extension 11 can be tightly engaged in the groove 21, improving the connection strength between the blister tray 10 and the foam board 20, and preventing the blister tray 10 from falling off the foam board 20.

[0036] Specifically, in this embodiment, the thickness of the extension 11 is 0.2mm-5mm. Further, the thickness of the blister tray 10 is 0.2mm-5mm. The width of the groove 21 is 0.1mm-4.9mm.

[0037] In this embodiment, the blister tray 10 is made of polyethylene terephthalate (PET). Of course, in other embodiments, the blister tray 10 can also be made of other thermoplastic materials, such as polyvinyl chloride (PVC) and polypropylene (PP).

[0038] In this embodiment, the foam board 20 is made of expanded polyethylene (EPE). Of course, in other embodiments, the foam board 20 can also be made of other foaming materials, such as expanded polypropylene (EPP), polystyrene (EPS), and a mixture of expanded polystyrene and polyethylene (EPO).

[0039] Furthermore, in this embodiment, the difference between the thickness of the extension 11 and the width of the groove 21 is 0.1 mm. For example, the thickness of the extension 11 is set to 1 mm, and the width of the groove 21 is set to 0.9 mm. By setting the difference between the thickness of the extension 11 and the width of the groove 21 within a reasonable range, the extension 11 can be easily inserted into the groove 21, and the groove 21 can compress the extension 11 to achieve a fixed connection.

[0040] Furthermore, the distance between the edge of the blister tray 10 and the edge of the foam board 20 is 5mm-50mm. It can be understood that in this embodiment, the edge dimension of the blister tray 10 is smaller than the edge dimension of the foam board 20. Specifically, in this embodiment, the foam board 20 is a square foam board 20, and the blister tray 10 is a square blister tray 10. The length and width dimensions of the blister tray 10 are both smaller than the length and width dimensions of the foam board 20. The distance between the long side of the blister tray 10 and the long side of the foam board 20 is 5mm-50mm, and the distance between the short side of the blister tray 10 and the short side of the foam board 20 is 5mm-50mm.

[0041] Furthermore, in this embodiment, the distance between the long side of the blister tray 10 and the long side of the foam board 20 is equal to the distance between the short side of the blister tray 10 and the short side of the foam board 20. That is, the distance between the edge of the blister tray 10 and the edge of the foam board 20 is equal everywhere.

[0042] Optionally, in other embodiments, the foam board 20 can be a circular foam board 20, and the blister tray 10 can be a circular blister tray 10. The difference between the radius of the blister tray 10 and the radius of the foam board 20 is 5mm-50mm. Of course, the foam board 20 and the blister tray 10 can also adopt other shapes, and their shapes can also be different. As long as it is possible to fix the blister tray 10 to the foam board 20, this utility model does not limit the shape of the foam board 20 and the blister tray 10.

[0043] To ensure the secure fixing of the blister pack 10 and the foam board 20, the depth of the groove 21 is greater than half the thickness of the foam board 20. In this embodiment, the depth of the groove 21 is slightly less than the length of the extension 11, so that when the blister pack 10 is attached to the foam board 20, the bottom of the extension 11 just abuts against the bottom of the groove 21. Setting the depth of the groove 21 to half the thickness of the foam board 20 allows the extension 11 to be embedded deeper into the foam board 20, preventing the extension 11 from falling off, and thus preventing the blister pack 10 from falling off.

[0044] Furthermore, in this embodiment, the shape of the cavity 22 is the same as the shape of the concave disk 12. It can be understood that in this embodiment, the concave disk 12 is used to accommodate and place the battery cell. Setting the shape of the cavity 22 to be consistent with that of the concave disk 12 can ensure that the blister tray 10 and the foam board 20 fit together everywhere, so that the foam board 20 supports the battery cell at the position of the cavity 22, thereby playing a buffering role.

[0045] Furthermore, a first mating part corresponding to the terminal post of the battery cell is provided within the cavity 22. A second mating part corresponding to the terminal post of the battery cell is provided on the concave plate 12. It can be understood that by providing the second mating part on the concave plate 12, the contact area between the battery cell and the concave plate 12 can be increased, thereby improving the stability of the battery cell installation. By providing the first mating part within the cavity 22, and ensuring that the first and second mating parts have the same shape, the blister pack 10 and the foam board 20 are properly fitted, guaranteeing support and cushioning effects.

[0046] Furthermore, the first mating part is a first groove 221, and the second mating part is a second groove 121. It can be understood that by setting the second groove 121, the terminal of the battery cell is accommodated in the second groove 121, thereby improving the stability of the battery cell being installed into the blister pack 10.

[0047] To facilitate the removal of the blister tray 10 from the foam board 20, a third groove 23 is provided on the foam board 20 in this embodiment. The third groove 23 is connected to the groove 21. The third groove 23 is located on the side of the groove 21 away from the cavity 22. It can be understood that by providing the third groove 23, when it is necessary to remove the blister tray 10 from the foam board 20, a finger can be inserted into the third groove 23 to remove the blister tray 10, or the groove 21 can be opened to remove the blister tray 10.

[0048] The beneficial effects of the battery cell packaging structure 100 provided in this embodiment of the present invention include:

[0049] The battery cell packaging structure 100 of this utility model includes a foam board 20 and a blister tray 10. The foam board 20 has multiple recesses 22 spaced apart. Grooves 21 are formed on the edge of the foam board 20. The blister tray 10 has multiple recesses 12 corresponding to the recesses 22. The recesses 12 are used to accommodate the battery cells. An extension 11 is provided on the edge of the blister tray 10 facing the foam board 20. The blister tray 10 covers the foam board 20, so that the recesses 12 press against the recesses 22, and the extension 11 is inserted into the groove 21. By providing grooves 21 on the edge of the foam board 20 and extending the blister tray 10 with its edge facing the foam board 20, the extension 11 is inserted into the groove 21 until the blister tray 10 is in contact with the surface of the foam board 20, thus fixing the blister tray 10 and the foam board 20. The battery cell packaging structure 100 of this utility model can achieve a fixed connection between the blister tray 10 and the foam board 20. The blister tray 10 and the foam board 20 are not easily separated, can adapt to environments such as high temperature and high humidity, and have strong connection stability and high durability.

[0050] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric cell packaging structure, characterized by comprising: include: A foam board, wherein a plurality of recesses are spaced apart on the foam board and grooves are formed on the edge of the foam board; A blister pack has multiple concave discs corresponding to the recessed cavity. The concave discs are used to accommodate battery cells. The edge of the blister pack has an extension facing the foam board. The blister pack is placed on the foam board so that the concave discs press against the recessed cavity. The extension is inserted into the groove.

2. The battery cell packaging structure of claim 1, wherein, The thickness of the extension is greater than the width of the groove, so that the extension and the groove are interference-fitted.

3. The battery cell packaging structure of claim 2, wherein, The thickness of the extension is 0.2mm-5mm, and the width of the groove is 0.1mm-4.9mm.

4. The battery cell packaging structure of claim 2, wherein, The difference between the thickness of the extension and the width of the groove is 0.1 mm.

5. The battery cell packaging structure of claim 1, wherein, The outer dimensions of the blister tray are smaller than the outer dimensions of the foam board.

6. The battery cell packaging structure of claim 5, wherein, The distance between the edge of the blister tray and the edge of the foam board is 5mm-50mm.

7. The battery cell packaging structure of claim 1, wherein, The depth of the groove is greater than half the thickness of the foam board.

8. The battery cell packaging structure of claim 1, wherein, The shape of the cavity is the same as the shape of the concave disk.

9. The battery cell packaging structure of claim 1, wherein, The cavity is provided with a first mating part corresponding to the electrode post of the battery cell, and the concave plate is provided with a second mating part corresponding to the electrode post of the battery cell.

10. The battery cell packaging structure of claim 9, wherein, The first mating part is a first groove, and the second mating part is a second groove.

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