Sodium ion battery packaging structure with buffering function

By using rubber airbags and a drying mechanism in the packaging of sodium-ion batteries, the problem of easy damage to plastic foam has been solved, enabling the rubber airbags to be reusable and have fire-extinguishing functions. This improves the safety of battery transportation and the dryness of the storage environment, thus promoting the achievement of green and environmentally friendly goals.

CN223533909UActive Publication Date: 2025-11-11CHENGDU CLOUD TECH CO LTD
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Patent Information

Application Number
CN202423135213.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-11-11
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing sodium-ion battery packaging structures using plastic foam cushioning are easily damaged, difficult to reuse multiple times, and not conducive to green and environmentally friendly practices.

Method used

It uses a rubber airbag as a cushioning mechanism, equipped with an inflation nozzle and fire extinguishing agent. The rubber airbag is filled with fire extinguishing agent for cushioning and fire extinguishing, and a ventilated drying box is used to remove moisture through a drying mechanism to ensure that the battery is stored in a dry environment.

Benefits of technology

It enables the reusability and fire extinguishing function of the rubber airbag, improves the transportation safety of sodium-ion batteries and the dryness of the storage environment, and promotes the achievement of green and environmentally friendly goals.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sodium ion battery packaging structure with a buffering function, which belongs to the technical field of sodium ion battery packaging, and comprises a packaging box and a sodium ion battery body, a sealing cover is arranged at the top of the packaging box, a buffering mechanism is arranged in the packaging box, and the sodium ion battery body is arranged in the buffering mechanism. A drying mechanism is arranged in the sealing cover; the buffer mechanism comprises an inflation nozzle, a plurality of non-slip mats, a rubber air bag and a fire extinguishing agent, the rubber air bag is filled with the fire extinguishing agent, the sides, close to the inner wall of the rubber air bag, of the non-slip mats are fixedly connected with the rubber air bag, and the bottom of the inflation nozzle fixedly communicates with the top of the rubber air bag; the problems that an existing part of structures for packaging the sodium ion battery are buffered through plastic foam, the plastic buffer foam is prone to being damaged in the process of taking out the sodium ion battery, repeated use is not convenient, and the green and environment-friendly target cannot be achieved easily are solved.
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Description

Technical Field

[0001] This utility model relates to the field of sodium-ion battery packaging technology, and in particular to a sodium-ion battery packaging structure with a cushioning function. Background Technology

[0002] Sodium-ion battery packaging is used to protect the outer casing and related components of sodium-ion batteries. Its structure and function play a crucial role in the performance, safety, stability and lifespan of the battery. When packaging sodium-ion batteries, it is necessary to cushion them to prevent damage from accidental impacts.

[0003] After conducting a search of sodium-ion battery packaging, the applicant discovered the following problems: Some existing packaging structures for sodium-ion batteries use plastic foam for cushioning. During the process of removing the sodium-ion battery, the plastic cushioning foam is easily damaged, making it inconvenient for repeated use and hindering the achievement of green and environmentally friendly goals.

[0004] To address this, a sodium-ion battery packaging structure with buffering function is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a sodium-ion battery packaging structure with a cushioning function, which solves the problem that some existing packaging structures for sodium-ion batteries use plastic foam for cushioning. This foam is easily damaged during the removal of the sodium-ion battery, making it inconvenient for repeated use and hindering the achievement of green and environmentally friendly goals.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sodium-ion battery packaging structure with a buffer function, comprising a packaging box and a sodium-ion battery body, wherein a sealing cover is provided on the top of the packaging box, a buffer mechanism is provided inside the packaging box, and a drying mechanism is provided inside the sealing cover;

[0007] The buffer mechanism includes an inflation nozzle, several anti-slip pads, a rubber airbag, and a fire extinguishing agent. The fire extinguishing agent is filled inside the rubber airbag. The side of the anti-slip pad near the inner wall of the rubber airbag is fixedly connected to the rubber airbag. The bottom of the inflation nozzle is fixedly connected to the top of the rubber airbag. The surface of the rubber airbag is in contact with the inner wall of the packaging box. The surface of the sodium-ion battery body is in close contact with the surface of the anti-slip pad.

[0008] Preferably, a sealing gasket is fixedly connected to the top of the inner wall of the sealing cover, and the bottom of the sealing gasket contacts the top of the packaging box.

[0009] Preferably, a first fixing block is fixedly connected to the front and rear sides of both sides of the packaging box, and a second fixing block is fixedly connected to the front and rear sides of both sides of the sealing cover. A limit button is provided on the top of the second fixing block, and the bottom of the limit button passes through the second fixing block and is connected to the internal thread of the first fixing block.

[0010] Preferably, buffer pads are fixedly connected to the front and rear sides of the top of the inner wall of the sealing cover, and the bottom of the buffer pads is in contact with the top of the sodium-ion battery body.

[0011] Preferably, the packaging box is provided with two pull straps inside, which are symmetrically distributed inside the packaging box, and the surface of the pull straps is in contact with the inner wall of the rubber airbag.

[0012] Preferably, the drying mechanism includes a first cover, a breathable drying box, and a second cover. The surface of the first cover is threadedly connected to the interior of the breathable drying box. The top of the breathable drying box is fixedly connected to the bottom of the second cover. The surface of the breathable drying box is threadedly connected to the interior of the sealing cover.

[0013] Preferably, the sealing cover has a through hole inside, the inner wall of the through hole has a limiting groove, the sealing cover has a sealing block inside, and a rubber ring is fixedly fitted on the surface of the sealing block, the surface of the rubber ring is in contact with the inner wall of the limiting groove.

[0014] Preferably, handles are fixedly connected to both sides of the sealing cap.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application uses reusable rubber airbags to cushion the sodium-ion battery body before packaging it in a box. This achieves the purpose of cushioning the sodium-ion battery body. The rubber airbags are reusable, and when the sodium-ion battery body catches fire, the rubber airbags can explode to release fire extinguishing agents, thus improving the safety of transporting the sodium-ion battery body.

[0017] 2. This application involves pouring an external desiccant into the inside of a breathable drying box and then connecting the breathable drying box to a sealing cover. This allows the external desiccant inside the breathable drying box to absorb moisture from inside the packaging box, thus keeping the sodium-ion battery in a dry environment. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the sodium-ion battery packaging structure with buffer function according to this utility model;

[0019] Figure 2This is a three-dimensional schematic diagram of the internal structure of the packaging box in this utility model;

[0020] Figure 3 This is a cross-sectional view of the internal structure of the rubber airbag in this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the connection between the pull strap and the rubber airbag in this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the bottom of the second cover in this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the bottom of the sealing cap in this utility model;

[0024] Figure 7 This utility model Figure 6 A magnified view of a portion of point A in the middle.

[0025] In the diagram, 1. Packaging box; 2. Sealing cover; 3. Drying mechanism; 301. First cover; 302. Breathable drying box; 303. Second cover; 4. Second fixing block; 5. First fixing block; 6. Handle; 7. Buffer mechanism; 701. Inflation nozzle; 702. Anti-slip pad; 703. Rubber airbag; 704. Fire extinguishing agent; 8. Limit button; 9. Sealing block; 10. Pull strap; 11. Through hole; 12. Buffer pad; 13. Sealing pad; 14. Sodium-ion battery body; 15. Rubber ring; 16. Limit groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-7 The present invention provides the following technical solution:

[0028] A sodium-ion battery packaging structure with a buffer function includes a packaging box 1 and a sodium-ion battery body 14. A sealing cover 2 is provided on the top of the packaging box 1, a buffer mechanism 7 is provided inside the packaging box 1, and a drying mechanism 3 is provided inside the sealing cover 2.

[0029] The buffer mechanism 7 includes an inflation nozzle 701, several anti-slip pads 702, a rubber airbag 703, and a fire extinguishing agent 704. The fire extinguishing agent 704 is filled inside the rubber airbag 703. The side of the anti-slip pad 702 near the inner wall of the rubber airbag 703 is fixedly connected to the rubber airbag 703. The bottom of the inflation nozzle 701 is fixedly connected to the top of the rubber airbag 703. The surface of the rubber airbag 703 is in contact with the inner wall of the packaging box 1. The surface of the sodium-ion battery body 14 is in close contact with the surface of the anti-slip pad 702.

[0030] Specifically, such as Figure 1 and Figure 6 As shown, a sealing gasket 13 is fixedly connected to the top of the inner wall of the sealing cover 2, and the bottom of the sealing gasket 13 contacts the top of the packaging box 1.

[0031] Specifically, such as Figure 1 , Figure 2 and Figure 6 As shown, the front and rear sides of both sides of the packaging box 1 are fixedly connected to the first fixing block 5, and the front and rear sides of both sides of the sealing cover 2 are fixedly connected to the second fixing block 4. The top of the second fixing block 4 is provided with a limit button 8, and the bottom of the limit button 8 passes through the second fixing block 4 and is connected to the internal thread of the first fixing block 5.

[0032] Specifically, such as Figure 1 and Figure 6 As shown, buffer pads 12 are fixedly connected to the front and rear sides of the top of the inner wall of the sealing cover 2, and the bottom of the buffer pads 12 is in contact with the top of the sodium-ion battery body 14.

[0033] Specifically, such as Figure 4 As shown, the packaging box 1 is provided with two pull straps 10 inside the packaging box 1, which are symmetrically distributed inside the packaging box 1. The surface of the pull straps 10 is in contact with the inner wall of the rubber airbag 703.

[0034] In this embodiment: Inflation of the rubber airbag 703 is achieved by using the inflation nozzle 701, causing the airbag 703 to expand and contact the inner wall of the packaging box 1, filling the internal space. The sodium-ion battery body 14 is placed inside the rubber airbag 703, with its surface in close contact with the anti-slip pad 702. The anti-slip pad 702 increases the stability of the sodium-ion battery body 14 and prevents direct friction with the rubber airbag 703. When subjected to external impact, the rubber airbag 703 absorbs and disperses energy through its own deformation, while the anti-slip pad 702 helps maintain the battery position. The pull strap 1... The sodium-ion battery body 14 can be easily pulled out from the rubber airbag 703. At the same time, the fire extinguishing agent 704 inside the rubber airbag 703 can assist in buffering under normal conditions. When the sodium-ion battery body 14 catches fire, the rubber airbag 703 explodes to release the fire extinguishing agent 704 to extinguish the fire. The sealing cover 2 is closed by threaded connection with the first fixing block 5 of the packaging box 1 through the second fixing block 4 and the limit button 8. The sealing gasket 13 on the inner wall of the sealing cover 2 contacts the top of the packaging box 1. When closed, it is squeezed and deformed to fill the gap and prevent external moisture, dust and other substances from entering.

[0035] Specifically, such as Figure 5 As shown, the drying mechanism 3 includes a first cover 301, a breathable drying box 302, and a second cover 303. The surface of the first cover 301 is threadedly connected to the inside of the breathable drying box 302. The top of the breathable drying box 302 is fixedly connected to the bottom of the second cover 303. The surface of the breathable drying box 302 is threadedly connected to the inside of the sealing cover 2.

[0036] Specifically, such as Figure 7 As shown, the sealing cover 2 has a through hole 11 inside, and a limiting groove 16 is formed on the inner wall of the through hole 11. A sealing block 9 is provided inside the sealing cover 2, and a rubber ring 15 is fixedly sleeved on the surface of the sealing block 9. The surface of the rubber ring 15 is in contact with the inner wall of the limiting groove 16.

[0037] Specifically, such as Figure 1 As shown, handles 6 are fixedly connected to both sides of the sealing cover 2.

[0038] In this embodiment: the breathable drying box 302 is used to hold the external desiccant. Its surface is threadedly connected to the inside of the sealing cover 2 for easy installation and disassembly, so that the external desiccant can be replaced regularly. The first cover 301 is connected to the breathable drying box 302 by threads, which can seal the desiccant and prevent it from falling out, ensuring its normal moisture absorption function. The second cover 303 is fixedly connected to the breathable drying box 302, which can be rotated easily. The external desiccant can then absorb moisture from the inside of the packaging box 1. The handles 6 on both sides of the sealing cover 2 provide users with a point of leverage to open and close the sealing cover 2. When the rubber airbag 703 explodes, the air pressure inside the packaging box 1 will impact the sealing block 9, causing the rubber ring 15 to be squeezed and deformed, and then disengaged from the limiting groove 16. This allows the through hole 11 to be opened to release pressure and prevent the packaging box 1 from exploding again.

[0039] Working principle: The sodium-ion battery body 14 to be packaged is placed in the rubber airbag 703. Then, an external inflation device is connected to the inflation nozzle 701 to inflate the rubber airbag 703. At this time, the anti-slip pad 702 can make close contact with the sodium-ion battery body 14. The soft and elastic material of the rubber airbag 703 can deform when the sodium-ion battery body 14 is subjected to external impact, thereby effectively absorbing and dispersing energy and achieving cushioning of the rubber airbag 703. Then, the first cover 301 is rotated to disengage the first cover 301 from the ventilated drying box 302. The external desiccant is poured into the ventilated drying box 302, and then the first cover 301 is closed. Reset the packaging box, then connect the breathable drying box 302 to the internal thread of the sealing cover 2. Place the sealing cover 2 on top of the packaging box 1, then pass the limiting button 8 through the second fixing block 4 and connect it to the internal thread of the first fixing block 5, locking it in place. This connects the sealing cover 2 to the packaging box 1. At this point, the bottom of the sealing gasket 13 is in close contact with the top of the packaging box 1, sealing the connection between the sealing cover 2 and the packaging box 1. The bottom of the buffer pad 12 will also contact the top of the sodium-ion battery body 14, further cushioning and protecting the sodium-ion battery body 14. Meanwhile, the external desiccant inside the breathable drying box 302 will dehumidify the inside of the packaging box 1, keeping the sodium-ion battery body 14 in a safe and dry environment. In a dry environment, when the sodium-ion battery body 14 catches fire, the high temperature will cause the rubber airbag 703 to explode due to heat. After the rubber airbag 703 explodes, the fire extinguishing agent 704 inside will rapidly diffuse into the surrounding space. During the diffusion process, the fire extinguishing agent 704 will cover the surface of the sodium-ion battery body 14, isolating the sodium-ion battery body 14 from oxygen and preventing the combustion reaction from continuing. When the rubber airbag 703 explodes, the air pressure inside the packaging box 1 will impact the sealing block 9, causing the rubber ring 15 to be squeezed and deformed, and then detached from the limiting groove 16, thus opening the through hole 11 to release pressure and prevent the packaging box 1 from exploding again. 03 can be reused and, while providing cushioning protection for the sodium-ion battery body 14, also has a fire extinguishing function, ensuring the safety of packaging and transportation of the sodium-ion battery body 14. Furthermore, the external desiccant allows the sodium-ion battery body 14 to be stored in a dry environment, avoiding the problem that some existing packaging structures for sodium-ion batteries use plastic foam for cushioning, which is prone to damage during the removal of the sodium-ion battery, making it inconvenient for repeated use and hindering the achievement of green and environmental protection goals. It should be noted that the air inlet 701 is a mature technology that has been published, and it uses a valve core to seal and prevent air leakage, which will not be elaborated on here.

[0040] The above are merely preferred embodiments of the present utility model and are 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 sodium-ion battery packaging structure with a buffer function, comprising a packaging box (1) and a sodium-ion battery body (14), characterized in that: The top of the packaging box (1) is provided with a sealing cover (2), the inside of the packaging box (1) is provided with a buffer mechanism (7), and the inside of the sealing cover (2) is provided with a drying mechanism (3); The buffer mechanism (7) includes an inflation nozzle (701), several anti-slip pads (702), a rubber airbag (703), and a fire extinguishing agent (704). The fire extinguishing agent (704) is filled inside the rubber airbag (703). The side of the anti-slip pad (702) near the inner wall of the rubber airbag (703) is fixedly connected to the rubber airbag (703). The bottom of the inflation nozzle (701) is fixedly connected to the top of the rubber airbag (703). The surface of the rubber airbag (703) is in contact with the inner wall of the packaging box (1). The surface of the sodium-ion battery body (14) is in close contact with the surface of the anti-slip pad (702).

2. The sodium-ion battery packaging structure with buffer function according to claim 1, characterized in that: A sealing gasket (13) is fixedly connected to the top of the inner wall of the sealing cover (2), and the bottom of the sealing gasket (13) is in contact with the top of the packaging box (1).

3. The sodium-ion battery packaging structure with buffer function according to claim 1, characterized in that: The packaging box (1) is fixedly connected to the front and rear sides of both sides by a first fixing block (5), and the sealing cover (2) is fixedly connected to the front and rear sides of both sides by a second fixing block (4). The top of the second fixing block (4) is provided with a limit button (8), and the bottom of the limit button (8) passes through the second fixing block (4) and is threadedly connected to the inside of the first fixing block (5).

4. The sodium-ion battery packaging structure with buffer function according to claim 1, characterized in that: The front and rear sides of the top of the inner wall of the sealing cover (2) are fixedly connected to the buffer pad (12), and the bottom of the buffer pad (12) is in contact with the top of the sodium-ion battery body (14).

5. A sodium-ion battery packaging structure with buffering function according to claim 1, characterized in that: The packaging box (1) is provided with two pull straps (10) inside the packaging box (1) and they are symmetrically distributed inside the packaging box (1). The surface of the pull straps (10) is in contact with the inner wall of the rubber airbag (703).

6. A sodium-ion battery packaging structure with buffer function according to claim 1, characterized in that: The drying mechanism (3) includes a first cover (301), a breathable drying box (302), and a second cover (303). The surface of the first cover (301) is threadedly connected to the inside of the breathable drying box (302). The top of the breathable drying box (302) is fixedly connected to the bottom of the second cover (303). The surface of the breathable drying box (302) is threadedly connected to the inside of the sealing cover (2).

7. A sodium-ion battery packaging structure with buffering function according to claim 1, characterized in that: The sealing cover (2) has a through hole (11) inside, and a limiting groove (16) is provided on the inner wall of the through hole (11). A sealing block (9) is provided inside the sealing cover (2), and a rubber ring (15) is fixedly sleeved on the surface of the sealing block (9). The surface of the rubber ring (15) is in contact with the inner wall of the limiting groove (16).

8. A sodium-ion battery packaging structure with buffering function according to claim 1, characterized in that: Handles (6) are fixedly connected to both sides of the sealing cover (2).