Insulating plate structure of lithium ion battery

Abstract

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to an insulating plate structure of a lithium ion battery. An installation and packaging structure (2) is arranged at the position, close to the edge, of the end edge of the insulating plate body (1), the installation and packaging structure (2) comprises a positioning hole (11), buckles (12) and buckle avoiding holes (13), the positioning hole (11) is located between the two buckles (12), each buckle avoiding hole (13) is of a round or square structure, the number and the positions of the buckle avoiding holes (13) correspond to those of the buckles (12), and the buckle avoiding holes (13) correspond to those of the buckles (12). The length and the width of the buckle avoiding hole (13) are larger than those of the buckle (12). According to the insulating plate structure of the lithium ion battery, the insulating plate structures can be stacked up and down conveniently and reliably, the insulating plate structures are prevented from being stressed and deformed, batch transfer is facilitated, the packaging efficiency and the yield of the insulating side plate structures are improved, and finally the production efficiency of the battery is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium ion batteries, and more specifically relates to an insulating plate structure of a lithium ion battery. Background Art

[0002] In the structure of lithium-ion batteries, the insulating plate structure is an indispensable component. In the production of lithium-ion batteries, the packaging or loading of the insulating plate structure is required. Packaging or loading often needs to be done in batches. The insulating plate structures in the prior art are all single-piece structures, which cannot be stacked reliably, and are not convenient for packaging or loading. Even if the existing insulating plate structures are barely stacked, they are prone to deformation during stacking, requiring manual subsequent adjustments, which seriously affects the packaging efficiency and yield rate of the insulating plate and the production efficiency of the battery.

[0003] In the prior art, there is a technology named "stacked modular lithium-ion battery module" and the publication number is "CN219329345U", which relates to a stacked modular lithium-ion battery module. It includes a battery case, an insulating plate built into the inner wall of the battery case, and a battery module arranged in the battery case. A case cover is also arranged outside the battery case, and plastic holders are respectively arranged on both sides of the case cover. Protective covers are also arranged on both sides of the battery case, and the inner walls on both sides of the protective cover are provided with undercuts, and the undercuts of the protective cover are fixedly engaged with the plastic holders on both sides of the case cover. The benefits of the utility model: the technical solution realizes quick installation and disassembly by engaging the undercuts of the protective cover with the plastic holders on both sides of the case cover, eliminating screws, and the battery modules are quickly stacked and installed by buckles between the upper and lower parts, so as to achieve stable installation, thereby achieving the effect of quick installation.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, a lithium-ion battery insulating plate structure with a simple structure is provided, which can conveniently and reliably realize the stacking of insulating plate structures up and down, effectively prevent the insulating plate structure from being deformed by force, and is convenient for batch transportation, thereby improving the packaging efficiency and yield rate of the insulating side plate structure, and ultimately improving the battery production efficiency.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the utility model is:

[0007] The utility model discloses an insulating plate structure for a lithium-ion battery, comprising an insulating plate body. An installation and packaging structure is arranged near the edge of one end of the insulating plate body. The installation and packaging structure comprises a positioning hole, a buckle, and a buckle avoidance hole. The positioning hole is located between two buckles. The buckle avoidance hole is a circular or square structure. The number and position of the buckle avoidance holes correspond to the buckles. The length and width of the buckle avoidance holes are greater than the length and width of the buckles.

[0008] One end of the insulation board body is provided with a mounting and packaging structure near the edge, and the other end of the insulation board body is also provided with a mounting and packaging structure near the edge.

[0009] A curved edge portion is provided on each side of the insulating plate body.

[0010] A plurality of convex ribs are arranged on the surface of the insulating board body.

[0011] The multiple convex ribs on the surface of the insulation board body are arranged in parallel, and the multiple convex ribs extend from a position close to the edge of one end of the insulation board body to a position close to the edge of the other end of the insulation board body.

[0012] The insulating board body and the curved edge portion are an integrated structure.

[0013] The insulating plate body and the convex ribs are an integrated structure.

[0014] The buckle comprises a first protruding portion and a second protruding portion, a first bent clamping portion is arranged outside the first protruding portion, and a second bent clamping portion is arranged outside the second protruding portion.

[0015] When the lithium-ion battery insulation plate structures are stacked, the buckles of the upper lithium-ion battery insulation plate structures are configured to be able to be snapped into the buckle avoidance holes of the lower lithium-ion battery insulation plate structures.

[0016] When the lithium-ion battery insulating plate structure is installed on a lithium battery, the buckle of the lithium-ion battery insulating plate structure is configured to be mounted in a clamping hole on the lithium battery, and the positioning hole of the lithium-ion battery insulating plate structure is configured to be mounted on a positioning protrusion.

[0017] The technical solution of the utility model is adopted, and the working principle and beneficial effects are as follows:

[0018] The lithium-ion battery insulation plate structure described in the utility model, when the structure is set, the same batch of lithium-ion battery insulation plate structures are structures with the same size and structure. That is, each lithium-ion battery insulation plate structure includes an insulation plate body, and each insulation plate body end edge is provided with an installation and packaging structure near the edge position, and the installation and packaging structure includes a positioning hole, a buckle, and a buckle avoidance hole, the positioning hole is located between two buckles, the buckle avoidance hole is a circular or square structure, the number and position of the buckle avoidance holes correspond to the buckle, and the length and width of the buckle avoidance hole are greater than the length and width of the buckle, so that when the insulation plate structures are stacked, the buckle of the insulation plate structure located on the upper layer can be clamped in the buckle avoidance hole of the insulation plate structure located on the lower layer. The positioning hole is used for positioning the insulating plate structure when it is installed with the insulating plate installation part of the lithium-ion battery. The buckle is used for the connection between the insulating plate structure and the lithium-ion battery when it is installed. The buckle avoidance hole is set, and the length and width of the buckle avoidance hole are greater than the length and width of the buckle, so that when the insulating plate structure is batch packaged and loaded, it is convenient to stack multiple insulating plate structures. After the insulating plate structure is stacked, it effectively prevents the problem of easy deformation of a single insulating plate structure under stress, and it is convenient for batch transportation, improves the packaging efficiency and yield rate of the insulating side plate structure, and finally improves the production efficiency of the battery. When multiple insulating plate structures are stacked, the insulating plate structure located on the upper layer is misplaced with the insulating plate structure located on the lower layer. The buckle at one end of the insulating plate structure on the upper layer is clamped in the buckle avoidance hole at the same end of the insulating plate structure on the lower layer, and the buckle at the other end of the insulating plate structure on the upper layer extends to the outer position of the end of the same end of the insulating plate structure on the lower layer. In this way, it is ensured that the insulating plate structure of the upper layer stacked on the upper and lower layers is reliably fitted, and the limit is ensured to avoid movement, which is convenient for overall transportation or loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 This is a structural schematic diagram of the lithium-ion battery insulation board structure of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of the lithium-ion battery insulation board structure of the utility model;

[0022] Figure 3 It is a partial structural schematic diagram of the lithium-ion battery insulation board structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the lithium-ion battery insulation plate structure when it is stacked according to the utility model;

[0024] Figure 5It is a schematic diagram of the partial structure of the lithium-ion battery insulation plate structure when it is stacked according to the utility model;

[0025] The marks in the accompanying drawings are respectively: 1. Insulating board body; 2. Installation and packaging structure; 11. Positioning hole; 12. Buckle; 13. Buckle avoidance hole; 14. Curved edge; 15. Convex rib; 16. First protrusion; 17. Second protrusion; 18. First clamping part; 19. Second clamping part; 20. Clamping hole; 21. Positioning protrusion; 22. Insulating board installation part of lithium-ion battery. DETAILED DESCRIPTION

[0026] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connection relationships of the components involved, the functions and working principles of the components, etc., by referring to the accompanying drawings:

[0027] As attached Figure 1 -Attached Figure 5As shown, the utility model is a lithium-ion battery insulation board structure, including an insulation board body 1, an installation and packaging structure 2 is arranged near the edge of the end of the insulation board body 1, and the installation and packaging structure 2 includes a positioning hole 11, a buckle 12, and a buckle avoidance hole 13. The positioning hole 11 is located between the two buckles 12, and the buckle avoidance hole 13 is a circular or square structure. The number and position of the buckle avoidance holes 13 correspond to the buckle 12, and the length and width of the buckle avoidance holes 13 are greater than the length and width of the buckle 12. The above structure proposes an improved technical solution to the deficiencies in the prior art. When the structure is set, the same batch of lithium-ion battery insulation board structures have the same size and structure. That is to say, each lithium-ion battery insulation board structure includes an insulation board body 1, and an installation and packaging structure 2 is arranged near the edge of each insulation board body 1. The installation and packaging structure 2 includes a positioning hole 11, a buckle 12, and a buckle avoidance hole 13. The positioning hole 11 is located between the two buckles 12, and the buckle avoidance hole 13 is a circular or square structure. The number and position of the buckle avoidance holes 13 correspond to the buckle 12, and the length and width of the buckle avoidance holes 13 are greater than the length and width of the buckle 12. In this way, when the insulation board structures are stacked, the buckles of the insulation board structure on the upper layer can be snapped into the buckle avoidance holes of the insulation board structure on the lower layer. The positioning hole 11 is provided for positioning the insulating plate structure when it is installed with the insulating plate mounting part 22 of the lithium-ion battery, the buckle is provided for the buckle connection when the insulating plate structure is installed with the lithium-ion battery, and the buckle avoidance hole 13 is provided, and the length and width of the buckle avoidance hole 13 are greater than the length and width of the buckle 12, so as to facilitate the stacking and placement of multiple insulating plate structures when the insulating plate structures are batch packaged and loaded. After the insulating plate structures are stacked, the problem of easy deformation of a single insulating plate structure under stress is effectively prevented, and batch transportation is facilitated, the packaging efficiency and yield rate of the insulating side plate structure are improved, and finally the production efficiency of the battery is improved. When multiple insulating plate structures are stacked, the insulating plate structure located on the upper layer is misaligned with the insulating plate structure located on the lower layer, and the buckle 12 at one end of the insulating plate structure on the upper layer is clamped in the buckle avoidance hole 13 at the same end of the insulating plate structure on the lower layer, and the buckle 12 at the other end of the insulating plate structure on the upper layer extends to the outer position of the end of the same end of the insulating plate structure on the lower layer. In this way, it is ensured that the upper insulating plate structure of the stacked upper and lower layers is reliably fitted, and the position is limited to avoid movement, which is convenient for overall transportation or loading. In summary, the lithium-ion battery insulating plate structure described in the utility model has a simple structure, can conveniently and reliably realize the stacking of the insulating plate structure up and down, prevent the insulating plate structure from being deformed by force, and is convenient for batch transportation, improves the packaging efficiency and yield rate of the insulating side plate structure, and ultimately improves the battery production efficiency.

[0028] The installation and packaging structure 2 is arranged near the edge of one end of the insulation board body 1, and the installation and packaging structure 2 is also arranged near the edge of the other end of the insulation board body 1. With the above structure, when the insulation board structure is connected to the lithium-ion battery, the buckles at both ends are reliably connected. When the insulation board structures are stacked, the insulation board structures on each side are staggered and connected with the corresponding insulation board structures through the buckles and the corresponding buckle avoidance holes, instead of requiring the buckles 12 at each end of each upper insulation board to be connected with the buckle avoidance holes 13 of the insulation board structure of the lower layer.

[0029] The insulating board body 1 is provided with a curved edge portion 14 on each side. The insulating board body 1 and the curved edge portion 14 are an integrated structure. The insulating board body 1 and the convex rib 15 are an integrated structure. A plurality of convex ribs 15 are provided on the surface of the insulating board body 1. In the above structure, the entire insulating board structure is integrally processed and formed, the processing technology is simple, and the processing cost is low. The insulating board structure is supported by flame retardant materials, does not burn when encountering fire, and extinguishes itself when away from fire, effectively improving the safety of use.

[0030] The multiple ribs 15 on the surface of the insulating board body 1 are arranged in parallel, and the multiple ribs 15 extend from one end of the insulating board body 1 close to the edge to the other end of the insulating board body 1 close to the edge. In the above structure, the ribs 15 effectively improve the overall strength of the insulating board.

[0031] The buckle 12 includes a first protruding portion 16 and a second protruding portion 17. A bent first clamping portion 18 is arranged outside the first protruding portion 16, and a bent second clamping portion 19 is arranged outside the second protruding portion 17. In the above structure, when the insulating plate structure is connected to the lithium-ion battery, the first clamping portion 18 and the second clamping portion 19 of the buckle 12 first approach each other when passing through the clamping hole, and then the first clamping portion 18 and the second clamping portion 19 are reset through the clamping hole and clamped on the other side of the clamping hole. The first clamping portion 18 and the second clamping portion 19 are arc-shaped structures, which are convenient for installation and disassembly.

[0032] When the lithium-ion battery insulation plate structures are stacked, the buckle 12 of the upper lithium-ion battery insulation plate structure is configured to be able to be clamped in the buckle avoidance hole 13 of the lower lithium-ion battery insulation plate structure. In the above structure, when multiple insulation plate structures are stacked, the buckle 12 at one end of the upper insulation plate structure is clamped in the buckle avoidance hole 13 at the same end of the lower insulation plate structure, and the buckle 12 at the other end of the upper insulation plate structure extends to the outer end position of the same end of the lower insulation plate structure, so as to achieve clamping and stacking up and down.

[0033] When the lithium-ion battery insulating plate structure is installed on the lithium battery, the buckle 12 of the lithium-ion battery insulating plate structure is configured to be able to be clamped in the clamping hole 20 on the lithium battery, and the positioning hole of the lithium-ion battery insulating plate structure is configured to be able to be clamped on the positioning protrusion 21. The above structure can reliably realize the reliable positioning of the insulating plate structure and the lithium-ion battery.

[0034] The lithium-ion battery insulation plate structure described in the utility model, when the structure is set, the same batch of lithium-ion battery insulation plate structures are structures with the same size and structure. That is to say, each lithium-ion battery insulation plate structure includes an insulation plate body 1, and each insulation plate body 1 has an installation and packaging structure 2 arranged near the edge of the end edge, and the installation and packaging structure 2 includes a positioning hole 11, a buckle 12, and a buckle avoidance hole 13. The positioning hole 11 is located between the two buckles 12, and the buckle avoidance hole 13 is a circular or square structure. The number and position of the buckle avoidance holes 13 correspond to the buckle 12, and the length and width of the buckle avoidance holes 13 are greater than the length and width of the buckle 12. In this way, when the insulation plate structures are stacked, the buckles of the insulation plate structure located on the upper layer can be clamped in the buckle avoidance holes of the insulation plate structure located on the lower layer. The positioning hole 11 is provided for positioning the insulating plate structure when it is installed with the insulating plate mounting part 22 of the lithium-ion battery, the buckle is provided for the buckle connection when the insulating plate structure is installed with the lithium-ion battery, and the buckle avoidance hole 13 is provided, and the length and width of the buckle avoidance hole 13 are greater than the length and width of the buckle 12, so as to facilitate the stacking and placement of multiple insulating plate structures when the insulating plate structures are batch packaged and loaded. After the insulating plate structures are stacked, the problem of easy deformation of a single insulating plate structure under stress is effectively prevented, and batch transportation is facilitated, the packaging efficiency and yield rate of the insulating side plate structure are improved, and finally the production efficiency of the battery is improved. When multiple insulating plate structures are stacked, the insulating plate structure located on the upper layer is misaligned with the insulating plate structure located on the lower layer, and the buckle 12 at one end of the insulating plate structure on the upper layer is clamped in the buckle avoidance hole 13 at the same end of the insulating plate structure on the lower layer, and the buckle 12 at the other end of the insulating plate structure on the upper layer extends to the outer position of the end of the same end of the insulating plate structure on the lower layer. In this way, it is ensured that the insulation board structure of the upper layer of the stacked upper and lower layers is reliably fitted, and the positioning is ensured to avoid movement, which is convenient for overall transportation or loading.

[0035] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A lithium-ion battery insulation plate structure, characterized in that: The invention comprises an insulating plate body (1), wherein an installation and packaging structure (2) is arranged near the edge of the end of the insulating plate body (1), wherein the installation and packaging structure (2) comprises a positioning hole (11), a buckle (12), and a buckle avoidance hole (13), wherein the positioning hole (11) is located between two buckles (12), and the buckle avoidance hole (13) is a circular or square structure, wherein the number and position of the buckle avoidance holes (13) correspond to those of the buckles (12), and the length and width of the buckle avoidance holes (13) are greater than the length and width of the buckles (12).

2. The lithium-ion battery insulation board structure according to claim 1, characterized in that: The insulating plate body (1) has a mounting and packaging structure (2) disposed near the edge at one end thereof, and the insulating plate body (1) has a mounting and packaging structure (2) disposed near the edge at the other end thereof.

3. The lithium-ion battery insulation plate structure according to claim 1 or 2, characterized in that: A curved edge portion (14) is provided on each side of the insulating plate body (1).

4. The lithium-ion battery insulation plate structure according to claim 1 or 2, characterized in that: A plurality of convex ribs (15) are arranged on the surface of the insulating plate body (1).

5. The lithium-ion battery insulation plate structure according to claim 4, characterized in that: The multiple convex ribs (15) on the surface of the insulating plate body (1) are arranged in parallel, and the multiple convex ribs (15) extend from a position close to the edge of one end of the insulating plate body (1) to a position close to the edge of the other end of the insulating plate body (1).

6. The lithium-ion battery insulation board structure according to claim 3, characterized in that: The insulating plate body (1) and the curved edge portion (14) are an integrated structure.

7. The lithium-ion battery insulation board structure according to claim 4, characterized in that: The insulating plate body (1) and the convex rib (15) are an integrated structure.

8. The lithium-ion battery insulation plate structure according to claim 1 or 2, characterized in that: The buckle (12) comprises a first protruding portion (16) and a second protruding portion (17); a first bent clamping portion (18) is arranged outside the first protruding portion (16); and a second bent clamping portion (19) is arranged outside the second protruding portion (17).

9. The lithium-ion battery insulation plate structure according to claim 1 or 2, characterized in that: When the lithium-ion battery insulation plate structures are stacked, the buckles (12) of the upper lithium-ion battery insulation plate structures are configured to be able to be snapped into the buckle avoidance holes (13) of the lower lithium-ion battery insulation plate structures.

10. The lithium-ion battery insulation plate structure according to claim 9, characterized in that: When the lithium-ion battery insulation plate structure is installed on a lithium battery, the buckle (12) of the lithium-ion battery insulation plate structure is configured to be able to be clamped in a clamping hole (20) on the lithium battery, and the positioning hole of the lithium-ion battery insulation plate structure is configured to be able to be clamped on a positioning protrusion (21).

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