Battery cell packaging box

Abstract

The application provides an electric core packaging box. The electric core packaging box comprises a box body, an electric core limiting piece, a first gasket and a second gasket. The box body is formed with a containing cavity. The electric core limiting piece is arranged in the containing cavity. The electric core limiting piece is formed with a plurality of electric core limiting holes. The electric core limiting piece is used for positioning the electric core inserted into the electric core limiting hole. The first gasket is arranged in the containing cavity. The second gasket is arranged in the containing cavity. The electric core limiting piece is located between the first gasket and the second gasket. The first gasket is used for abutting against the first end of the electric core. The second gasket is used for abutting against the second end of the electric core. The electric core packaging box has the advantages that the installation stability of the electric core is improved, the electric core is prevented from being damaged due to shaking and impact, and the first gasket and the second gasket can also protect the electric core from being damaged due to collision.

Description

Technical Field

[0001] This application relates to the field of battery cell packaging technology, specifically to battery cell packaging boxes. Background Technology

[0002] Battery cell packaging boxes are widely used for battery cell packaging. The main components of a battery cell packaging box include a box body and cutters inside the box. The cutters are made of several cardboard pieces arranged in a cross pattern to form a cavity that can accommodate the battery cell, thereby limiting and installing the battery cell.

[0003] The battery cell packaging boxes in the relevant technologies have a technical problem: the battery cells are easily shaken and impacted, leading to damage to the battery cells. Utility Model Content

[0004] The embodiments of this application provide a battery cell packaging box, which can improve the technical problems such as battery cells being easily shaken and impacted, leading to damage to the battery cells.

[0005] In a first aspect, embodiments of this application provide a battery cell packaging box, comprising:

[0006] The box-shaped structure forms a receiving cavity;

[0007] A battery cell limiting member is disposed within the receiving cavity. The battery cell limiting member has multiple battery cell limiting holes and is used to position the battery cell inserted into the battery cell limiting holes.

[0008] A first gasket is disposed within the receiving cavity;

[0009] A second gasket is disposed within the receiving cavity, and the cell limiting member is located between the first gasket and the second gasket. The first gasket is used to abut against the first end of the cell, and the second gasket is used to abut against the second end of the cell.

[0010] In one embodiment, along the height direction of the housing, the orthographic projections of the plurality of cell limiting holes on the bottom wall of the housing are all located within the orthographic projection of the first gasket on the bottom wall of the housing; and / or,

[0011] Along the height direction of the housing, the orthographic projections of the plurality of battery cell limiting holes on the bottom wall of the housing are all located within the orthographic projection of the second gasket on the bottom wall of the housing.

[0012] By adopting the above technical solution, multiple battery cells can be supported and protected simultaneously, preventing multiple battery cells from being damaged by impact due to shaking, and preventing the first end of multiple battery cells from being damaged by bumps.

[0013] In one embodiment, at least one of the cell retaining member, the first gasket, and the second gasket is made of pearl cotton; and / or,

[0014] At least one of the cell retaining member, the first gasket, and the second gasket has a density greater than 18 kg / m³. 3 .

[0015] By adopting the above technical solution, the excellent cushioning performance of pearl cotton material can effectively improve the cushioning performance of the battery cell limiting component, the first gasket, or the second gasket, thus providing effective cushioning protection for the battery cell and preventing damage caused by impacts. It also offers advantages such as excellent cushioning effect, cleanliness, safety, reliability, and convenient packaging, solving the problems of paper cutting cards easily generating debris and insufficient cushioning performance. Furthermore, it avoids the situation where the battery cell limiting component, the first gasket, or the second gasket has insufficient hardness, resulting in poor cushioning effect.

[0016] In one embodiment, the cell limiting member is interference-fitted with the housing.

[0017] By adopting the above technical solution, the cell limiting components can be prevented from shaking inside the box, thus ensuring the installation stability of the cell.

[0018] In one embodiment, along the width direction of the housing, the cell retaining member is interference-fitted with the wall of the receiving cavity, the interference amount being 3% to 5% of the width of the receiving cavity; and / or,

[0019] Along the length of the housing, the cell limiting member is interference-fitted with the housing, and the interference amount is 3% to 5% of the length of the receiving cavity.

[0020] By adopting the above technical solution, the installation stability of the cell limiting component is ensured, while avoiding excessive installation difficulty and preventing excessive compression of the cell limiting component.

[0021] In one embodiment, along the height direction of the housing, the height of the cell limiting member is T1, and the height of the cell is H, wherein T1 ≥ 0.5H.

[0022] By adopting the above technical solution, the cell limiting component can provide sufficient lateral support force for the cell in the height direction, preventing the cell from tipping over during loading and transportation, and ensuring the installation stability of the cell.

[0023] In one embodiment, the diameter of the cell limiting hole is d1, and the diameter of the cell is D, wherein 1.04 ≥ d1 / D ≥ 1.02.

[0024] By adopting the above technical solutions, the difficulty of installing and removing battery cells is reduced, the risk of scratching the protective film of the battery cells is reduced, and the installation stability of the battery cells is ensured, avoiding battery cell shaking and denting.

[0025] In one embodiment, the diameter of the cell limiting hole is d1, wherein,

[0026] The plurality of cell limiting holes are arranged in an array, and the minimum distance between the cell limiting hole located at the edge and the edge of the cell limiting member is t1, 0.2≤t1 / d1≤0.3; and / or,

[0027] The minimum interval between two adjacent battery cell limiting holes is t2, where 0.2 ≤ t2 / d1 ≤ 0.3.

[0028] By adopting the above technical solution, the forming difficulty of the cell limiting hole is reduced, while ensuring the number of cell limiting holes and the cell loading capacity.

[0029] In one embodiment, along the length of the housing, the length of the first gasket is L2, the length of the second gasket is L3, and the length of the receiving cavity is L4, wherein...

[0030] L2 = L3; and / or,

[0031] 0.98 ≤ L2 / L4 ≤ 0.995; and / or,

[0032] 0.98≤L3 / L4≤0.995.

[0033] By adopting the above technical solution, the size difference between the first and second pads is reduced. This ensures that the first pad can simultaneously support all battery cells and facilitates its placement and removal. Similarly, it ensures that the second pad can simultaneously support all battery cells and facilitates its placement and removal.

[0034] In one embodiment, along the width direction of the housing, the width of the first gasket is W2, the width of the second gasket is W3, and the width of the receiving cavity is W4, wherein...

[0035] W2 = W3; and / or,

[0036] 0.98 ≤ W2 / W4 ≤ 0.995; and / or,

[0037] 0.98≤W3 / W4≤0.995.

[0038] By adopting the above technical solution, the size difference between the first and second pads is reduced. This ensures that the first pad can simultaneously support all battery cells and facilitates its placement and removal. Similarly, it ensures that the second pad can simultaneously support all battery cells and facilitates its placement and removal.

[0039] In one embodiment, the second gasket is located between the cell retainer and the bottom wall of the box, and the cell packaging box further includes cardboard located between the second gasket and the bottom wall of the box.

[0040] By adopting the above technical solution, cardboard can play a protective role, preventing the battery cells from being damaged by bumps or impacts during handling and transportation.

[0041] The beneficial effects of the embodiments of this application are as follows:

[0042] In the embodiments of this application, when the battery cell is inserted into the battery cell limiting hole, the limiting hole can limit and fix the battery cell, allowing the battery cell limiting member to position the battery cell. Simultaneously, the first end of the battery cell abuts against the first gasket, and the second end of the battery cell abuts against the second gasket. The first gasket protects the first end of the battery cell, and the second gasket protects the second end of the battery cell. Furthermore, the first gasket supports the first end of the battery cell, and the second gasket supports the second end of the battery cell. In other words, this application uses the battery cell limiting hole in the battery cell limiting member to radially limit the battery cell. Simultaneously, the first and second gaskets sandwich the battery cell in the middle, providing axial limiting for the battery cell. This improves the installation stability of the battery cell, preventing damage from impacts caused by shaking. Additionally, the first and second gaskets also protect the battery cell from damage due to impacts. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the structure of the battery cell packaging box provided in an embodiment of this application;

[0045] Figure 2 This is a schematic diagram of the structure of the battery cell limiting component provided in an embodiment of this application;

[0046] Figure 3 This is a side view of the cell limiting member provided in an embodiment of this application;

[0047] Figure 4 This is a schematic diagram of the structure of the first gasket provided in an embodiment of this application;

[0048] Figure 5 This is a schematic diagram of the structure of the second gasket provided in an embodiment of this application;

[0049] Figure 6 This is a schematic diagram of the structure of the box provided in an embodiment of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Housing; 2. Cell limiting component; 3. Cell; 4. First gasket; 5. Second gasket; 6. Cardboard; 11. Receiving cavity; 21. Cell limiting hole. Detailed Implementation

[0052] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0053] The following is combined Figures 1 to 6 Describes the battery cell packaging box of this application.

[0054] According to embodiments of this application, such as Figure 1 and Figure 2 As shown, the battery cell packaging box includes a box body 1, a battery cell positioning member 2, and a first gasket 4 and a second gasket 5. The box body 1 forms a receiving cavity 11. The battery cell positioning member 2 is disposed in the receiving cavity 11 and has a plurality of battery cell positioning holes 21. The battery cell positioning member 2 is used to position the battery cell 3 inserted into the battery cell positioning holes 21. The first gasket 4 is disposed in the receiving cavity 11, and the second gasket 5 is disposed in the receiving cavity 11. The battery cell positioning member 2 is located between the first gasket 4 and the second gasket 5. The first gasket 4 is used to abut against the first end of the battery cell 3, and the second gasket 5 is used to abut against the second end of the battery cell 3.

[0055] According to the battery cell packaging box of the present application embodiment, when the battery cell 3 is inserted into the battery cell limiting hole 21, the battery cell limiting hole 21 can limit and fix the battery cell 3, so that the battery cell limiting member 2 can position the battery cell. At the same time, the first end of the battery cell 3 abuts against the first gasket 4, and the second end of the battery cell 3 abuts against the second gasket 5. The first gasket 4 can protect the first end of the battery cell 3, and the second gasket 5 can protect the second end of the battery cell. The first gasket 4 can support the first end of the battery cell, and the second gasket 5 can support the second end of the battery cell. In other words, the battery cell limiting hole 21 of the battery cell limiting member 2 can radially limit the battery cell. At the same time, the first gasket 4 and the second gasket 5 sandwich the battery cell in the middle and can axially limit the battery cell. This helps to improve the installation stability of the battery cell and avoid damage caused by the battery cell due to shaking. In addition, the first gasket 4 and the second gasket 5 can also protect the battery cell to prevent damage caused by bumps.

[0056] In some examples, one cell limiting hole 21 is used to install one cell, that is, multiple cell limiting holes 21 correspond one-to-one with multiple cells.

[0057] In some examples, the cell retainer 2 is, for example, a knife clip.

[0058] In some embodiments, along the height direction of the housing 1, the orthographic projection of the plurality of battery cell limiting holes 21 on the bottom wall of the housing 1 is located within the orthographic projection of the first gasket 4 on the bottom wall of the housing 1.

[0059] Understandably, each cell limiting hole 21 can be used to install one cell. The orthographic projection of the multiple cell limiting holes 21 on the bottom wall of the housing 1 is set within the orthographic projection of the first gasket 4 on the bottom wall of the housing 1. This ensures that the first gasket 4 can simultaneously abut against the first end of the cells at the multiple cell limiting holes 21, thus providing support and protection for multiple cells at the same time. This prevents the multiple cells from being damaged by impact due to shaking, and also prevents the first end of the multiple cells from being damaged by bumps.

[0060] In some embodiments, along the height direction of the housing 1, the orthographic projection of the plurality of cell limiting holes 21 on the bottom wall of the housing 1 is located within the orthographic projection of the second gasket 5 on the bottom wall of the housing 1.

[0061] It is understandable that each cell limiting hole 21 can be used to install one cell. The orthographic projection of the multiple cell limiting holes 21 on the bottom wall of the housing 1 is set within the orthographic projection of the second gasket 5 on the bottom wall of the housing 1. In this way, it is ensured that the second gasket 5 can simultaneously abut against the second end of the multiple cell limiting holes 21, thereby providing support and protection for multiple cells at the same time. This prevents multiple cells from being damaged by impact due to shaking, and also prevents the first end of multiple cells from being damaged by bumps.

[0062] In some embodiments, at least one of the cell limiting member 2, the first gasket 4, and the second gasket 5 is made of pearl cotton.

[0063] It is understandable that pearl cotton material has excellent cushioning performance, which can effectively improve the cushioning performance of the battery cell limiting component 2, the first pad 4, or the second pad 5, so as to effectively cushion and protect the battery cell and prevent the battery cell from being damaged by bumps and impacts. It also has the advantages of excellent cushioning effect, cleanliness, safety and reliability, and convenient packaging, which solves the problems of paper cut-out cards being prone to generating debris and insufficient cushioning performance.

[0064] In some embodiments, the density of at least one of the cell limiting member 2, the first gasket 4, and the second gasket 5 is greater than 18 kg / m³. 3 .

[0065] This is to avoid a situation where the hardness of the cell limiting component 2, the first pad 4, or the second pad 5 is too low, resulting in poor buffering effect.

[0066] It is understandable that when the density of the cell limiting component 2 is lower than 18 kg / m³, 3 When this happens, the cell limiting component 2 becomes too soft, which makes it difficult for the cell limiting component 2 to provide effective buffer protection for the cell.

[0067] When the density of the first gasket 4 is less than 18 kg / m³ 3 If this happens, the first pad 4 will become too soft, making it difficult for the first pad 4 to provide effective buffer protection for the battery cell.

[0068] When the density of the second gasket 5 is less than 18 kg / m³ 3 If this happens, the second pad 5 will become too soft, making it difficult for the second pad 5 to provide effective buffer protection for the battery cell.

[0069] In some embodiments, the cell limiting member 2 is interference-fitted with the housing 1.

[0070] In this way, the cell limiting component 2 can be prevented from shaking inside the housing 1, ensuring the installation stability of the cell.

[0071] Specifically, along the width direction of the housing 1, the cell limiting member 2 is interference-fitted with the wall of the receiving cavity 11, and the interference amount is 3% to 5% of the width of the receiving cavity 11.

[0072] It is understandable that before the cell limiting member 2 is installed in the receiving cavity 11, the width of the cell limiting member 2 will be greater than the width of the receiving cavity 11, so that after the cell limiting member 2 is installed in the receiving cavity 11, the cell limiting member 2 will be interference-fitted with the inner wall surface of the housing 1, ensuring the installation stability of the cell limiting member 2.

[0073] Understandably, if the interference fit is less than 3% of the width of the cavity 11, the cell limiting component 2 may lack sufficient installation stability. If the interference fit is greater than 5% of the width of the cavity 11, installation will be more difficult and may lead to excessive compression of the cell limiting component 2. Therefore, in this embodiment, the interference fit between the cell limiting component 2 and the wall of the cavity 11 is set between 3% and 5% of the width of the cavity 11. This ensures the installation stability of the cell limiting component 2 while avoiding excessive installation difficulty and preventing excessive compression of the cell limiting component 2.

[0074] For example, this embodiment can also be understood as the width side of the cell limiting member 2 being interference-fitted with the wall of the receiving cavity 11.

[0075] In some examples, the width of the cell retainer 2 is W1.

[0076] Specifically, along the length of the housing 1, the cell limiting member 2 is interference-fitted with the housing 1, and the interference amount is 3% to 5% of the length of the receiving cavity.

[0077] It is understandable that before the cell limiting component 2 is installed in the receiving cavity 11, the length of the cell limiting component 2 will be greater than the length of the receiving cavity 11, so that after the cell limiting component 2 is installed in the receiving cavity 11, the cell limiting component 2 will be interference-fitted with the inner wall surface of the housing 1, ensuring the installation stability of the cell limiting component 2.

[0078] Understandably, if the interference fit is less than 3% of the length of the receiving cavity 11, the cell limiting component 2 may lack sufficient installation stability. If the interference fit is greater than 5% of the length of the receiving cavity 11, the installation will be more difficult and may lead to excessive compression of the cell limiting component 2. Therefore, in this embodiment, the interference fit between the cell limiting component 2 and the wall of the receiving cavity 11 is set between 3% and 5% of the length of the receiving cavity 11. This ensures the installation stability of the cell limiting component 2 while avoiding excessive installation difficulty and preventing excessive compression of the cell limiting component 2.

[0079] For example, this embodiment can also be understood as the length side of the cell limiting member 2 being interference-fitted with the wall of the receiving cavity 11.

[0080] In some examples, the length of the cell limiting member 2 is L1.

[0081] In some embodiments, such as Figure 3 As shown, along the height direction of the housing 1, the height of the cell limiting component 2 is T1, and the height of the cell is H, where T1 ≥ 0.5H.

[0082] Thus, in the height direction, the cell limiting component 2 can provide sufficient lateral support for the cell, preventing it from tipping over during loading and transportation, and ensuring the installation stability of the cell.

[0083] In some embodiments, such as Figure 2 As shown, the diameter of the battery cell limiting hole 21 is d1, and the diameter of the battery cell is D, where 1.04≥d1 / D≥1.02.

[0084] Understandably, if the ratio of the diameter of the cell limiting hole 21 to the diameter of the cell is less than 1.02, the cell will be difficult to install and remove, and the protective film of the cell may be easily scratched. If the ratio of the diameter of the cell limiting hole 21 to the diameter of the cell is greater than 1.04, the cell may wobble or even be bumped. Therefore, in this embodiment, the ratio of the diameter of the cell limiting hole 21 to the diameter of the cell is set between 1.02 and 1.04, which reduces the difficulty of installing and removing the cell, reduces the risk of scratching the protective film of the cell, and ensures the installation stability of the cell, avoiding cell wobble and dents.

[0085] In some embodiments, the diameter of the cell limiting hole 21 is d1.

[0086] Specifically, such as Figure 2 As shown, multiple battery cell limiting holes 21 are arranged in an array. The minimum distance between the battery cell limiting hole 21 located at the edge and the edge of the battery cell limiting member 2 is t1, 0.2≤t1 / d1≤0.3.

[0087] Understandably, if t1 / d1 is less than 0.2, the distance between the cell limiting hole 21 located at the edge and the edge of the cell limiting member 2 is too small, which is not conducive to the forming of the cell limiting hole 21; if t1 / d1 is greater than 0.3, the number of cell limiting holes 21 that can be formed by the cell limiting member 2 is limited, which leads to insufficient cell loading and increased packaging costs. Therefore, in this embodiment, t1 / d1 is designed to be between 0.2 and 0.3, which reduces the forming difficulty of the cell limiting hole 21, while ensuring the number of cell limiting holes 21 and the cell loading.

[0088] It is understandable that the cell limiting hole 21 located at the edge refers to the outermost ring of cell limiting holes 21 among the multiple cell limiting holes 21 distributed in the array.

[0089] Specifically, such as Figure 2 As shown, the minimum interval between two adjacent battery cell limiting holes 21 is t2, 0.2≤t2 / d1≤0.3.

[0090] It is understandable that if t2 / d1 is less than 0.2, the minimum interval between two adjacent cell limiting holes 21 is too small, which is not conducive to the forming of the cell limiting holes 21; if t2 / d1 is greater than 0.3, the number of cell limiting holes 21 that can be formed by the cell limiting component 2 is limited, which leads to insufficient cell loading and increased packaging costs. Therefore, in this embodiment, t2 / d1 is designed to be between 0.2 and 0.3, which reduces the forming difficulty of the cell limiting holes 21, while ensuring the number of cell limiting holes 21 and the cell loading.

[0091] In some examples, the cell retainer 2 is, for example, a blade holder, and t1 and t2 refer to the rib thickness of the blade holder.

[0092] In some embodiments, such as Figure 4 , Figure 5 and Figure 6 As shown, along the length of the housing 1, the length of the first gasket 4 is L2, the length of the second gasket 5 is L3, and the length of the receiving cavity 11 is L4.

[0093] Specifically, L2 = L3.

[0094] Thus, the length of the first gasket 4 is the same as the length of the second gasket 5, reducing the size difference between the first gasket 4 and the second gasket 5.

[0095] Specifically, 0.98≤L2 / L4≤0.995.

[0096] Understandably, if the ratio of the length of the first pad 4 to the length of the receiving cavity 11 is less than 0.98, the length of the first pad 4 is too short to simultaneously abut the ends of all the battery cells, thus failing to provide support for all the battery cells. If the ratio of the length of the first pad 4 to the length of the receiving cavity 11 is greater than 0.995, the first pad 4 becomes difficult to place or remove. Therefore, in this embodiment, the ratio of the length of the first pad 4 to the length of the receiving cavity 11 is set between 0.98 and 0.995, ensuring that the first pad 4 can simultaneously support all the battery cells and facilitating the placement or removal of the first pad 4.

[0097] Specifically, 0.98≤L3 / L4≤0.995.

[0098] Understandably, if the ratio of the length of the second pad 5 to the length of the receiving cavity 11 is less than 0.98, the length of the second pad 5 is too short to simultaneously abut the ends of all the battery cells, thus failing to provide support for all the battery cells. If the ratio of the length of the second pad 5 to the length of the receiving cavity 11 is greater than 0.995, the second pad 5 becomes difficult to remove and place. Therefore, in this embodiment, the ratio of the length of the second pad 5 to the length of the receiving cavity 11 is set between 0.98 and 0.995, ensuring that the second pad 5 can simultaneously support all the battery cells and facilitating the removal and placement of the second pad 5.

[0099] In some embodiments, such as Figure 4 , Figure 5 and Figure 6 As shown, along the width direction of the housing 1, the width of the first gasket 4 is W2, the width of the second gasket 5 is W3, and the width of the receiving cavity 11 is W4.

[0100] Specifically, W2 = W3.

[0101] In this way, the width of the first gasket 4 is the same as the width of the second gasket 5, reducing the size difference between the first gasket 4 and the second gasket 5.

[0102] Specifically, 0.98 ≤ W2 / W4 ≤ 0.995.

[0103] Understandably, if the ratio of the width of the first pad 4 to the width of the receiving cavity 11 is less than 0.98, the width of the first pad 4 is too short, making it difficult to simultaneously abut the ends of all the battery cells, thus failing to provide support for all the battery cells. If the ratio of the width of the first pad 4 to the width of the receiving cavity 11 is greater than 0.995, the first pad 4 becomes difficult to place or remove. Therefore, in this embodiment, the ratio of the width of the first pad 4 to the width of the receiving cavity 11 is set between 0.98 and 0.995, ensuring that the first pad 4 can simultaneously support all the battery cells and facilitating the placement or removal of the first pad 4.

[0104] Specifically, 0.98 ≤ W3 / W4 ≤ 0.995.

[0105] Understandably, if the ratio of the width of the second pad 5 to the width of the receiving cavity 11 is less than 0.98, the width of the second pad 5 is too short to simultaneously abut the ends of all the battery cells, thus failing to provide support for all the battery cells. If the ratio of the width of the second pad 5 to the width of the receiving cavity 11 is greater than 0.995, the second pad 5 becomes difficult to place or remove. Therefore, in this embodiment, the ratio of the width of the second pad 5 to the width of the receiving cavity 11 is set between 0.98 and 0.995, ensuring that the second pad 5 can simultaneously support all the battery cells and facilitate the placement or removal of the second pad 5.

[0106] In some embodiments, such as Figure 1 As shown, the second gasket 5 is located between the cell limiting member 2 and the bottom wall of the box 1. The cell packaging box also includes cardboard 6, which is located between the second gasket 5 and the bottom wall of the box 1.

[0107] Understandably, cardboard 6 serves a protective function, preventing the battery cell 3 from being damaged by bumps or impacts during handling and transportation.

[0108] In some examples, the cardboard 6 is, for example, single-wall or double-wall corrugated cardboard 6. Single-wall corrugated cardboard 6 types include, for example, K3K, K3A, K3B, etc., and double-wall corrugated cardboard 6 types include, for example, K=K, K=A, K=B, A=A, H636H, etc.

[0109] In some embodiments, the type of box 1 is, for example, a slotted type 02, a nesting type 03, or a folding type carton 04.

[0110] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A battery cell packaging box, characterized in that, include: The box-shaped structure forms a receiving cavity; A battery cell limiting member is disposed within the receiving cavity. The battery cell limiting member has multiple battery cell limiting holes and is used to position the battery cell inserted into the battery cell limiting holes. A first gasket is disposed within the receiving cavity; A second gasket is disposed within the receiving cavity, and the cell limiting member is located between the first gasket and the second gasket. The first gasket is used to abut against the first end of the cell, and the second gasket is used to abut against the second end of the cell.

2. The battery cell packaging box according to claim 1, characterized in that, Along the height direction of the housing, the orthographic projections of the plurality of battery cell limiting holes on the bottom wall of the housing are all located within the orthographic projection of the first gasket on the bottom wall of the housing; And / or, Along the height direction of the housing, the orthographic projections of the plurality of battery cell limiting holes on the bottom wall of the housing are all located within the orthographic projection of the second gasket on the bottom wall of the housing.

3. The battery cell packaging box according to claim 1, characterized in that, At least one of the cell retaining member, the first gasket, and the second gasket is made of pearl cotton; and / or, At least one of the cell retaining member, the first gasket, and the second gasket has a density greater than 18 kg / m³. 3 .

4. The battery cell packaging box according to any one of claims 1 to 3, characterized in that, The cell limiting component is interference-fitted with the housing.

5. The battery cell packaging box according to claim 4, characterized in that, Along the width direction of the housing, the cell retaining member is interference-fitted with the wall of the receiving cavity, the interference amount being 3% to 5% of the width of the receiving cavity; and / or, Along the length of the housing, the cell limiting member is interference-fitted with the housing, and the interference amount is 3% to 5% of the length of the receiving cavity.

6. The battery cell packaging box according to any one of claims 1 to 3, characterized in that, Along the height direction of the housing, the height of the cell limiting member is T1, and the height of the cell is H, wherein T1 ≥ 0.5H.

7. The battery cell packaging box according to any one of claims 1 to 3, characterized in that, The diameter of the battery cell limiting hole is d1, and the diameter of the battery cell is D, where 1.04≥d1 / D≥1.

02.

8. The battery cell packaging box according to any one of claims 1 to 3, characterized in that, The diameter of the cell limiting hole is d1, wherein, The plurality of cell limiting holes are arranged in an array, and the minimum distance between the cell limiting hole located at the edge and the edge of the cell limiting member is t1, 0.2≤t1 / d1≤0.3; and / or, The minimum interval between two adjacent battery cell limiting holes is t2, where 0.2 ≤ t2 / d1 ≤ 0.

3.

9. The battery cell packaging box according to any one of claims 1 to 3, characterized in that, Along the length of the housing, the length of the first gasket is L2, the length of the second gasket is L3, and the length of the receiving cavity is L4, wherein... L2 = L3; and / or, 0.98 ≤ L2 / L4 ≤ 0.995; and / or, 0.98≤L3 / L4≤0.

995.

10. The battery cell packaging box according to any one of claims 1 to 3, characterized in that, Along the width direction of the housing, the width of the first gasket is W2, the width of the second gasket is W3, and the width of the receiving cavity is W4, wherein... W2 = W3; and / or, 0.98 ≤ W2 / W4 ≤ 0.995; and / or, 0.98≤W3 / W4≤0.

995.

11. The battery cell packaging box according to any one of claims 1 to 3, characterized in that, The second gasket is located between the cell retainer and the bottom wall of the box. The cell packaging box also includes cardboard, which is located between the second gasket and the bottom wall of the box.

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