Module integration cover structure

By using a modular integrated cover structure, the problems of inability to assemble in advance and insufficient fracture resistance of the joints in existing technologies are solved, enabling efficient automated production and strengthening of the joints, thereby improving the production efficiency and safety of battery modules.

CN223638533UActive Publication Date: 2025-12-05WUHU ETC BATTERY LTD
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Patent Information

Application Number
CN202423161640.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-12-05
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Existing integrated cover plates cannot be pre-assembled in battery modules, resulting in low levels of automation in production and insufficient fracture resistance of the joints, which affects production efficiency and safety.

Method used

The structure adopts a modular integrated cover structure, including a bent middle cover and side covers, with reinforcing ribs and fixing buckles. It uses snaps and slots to achieve combination. The middle cover can be pre-assembled to enhance the strength of the joint.

Benefits of technology

It enables highly efficient and automated production of modules, improves production efficiency, enhances the fracture resistance of the joints, and reduces the risk of breakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a module integrated cover structure which comprises an upper cover plate and a lower cover plate (4) which are buckled with each other, the upper cover plate is divided into a positive electrode cover (1), a negative electrode cover (2) and a middle section cover (3), the positive electrode cover (1) and the negative electrode cover (2) are respectively arranged at two ends of the middle section cover (3), and the positive electrode cover (1), the negative electrode cover (2) and the middle section cover (3) are buckled on the lower cover plate (4). The two ends of the middle section cover (3) are bent, and the positive electrode cover (1) and the negative electrode cover (2) are attached to the two ends of the middle section cover (3); through the spliced integrated cover, the upper surface is flat and attractive, the integrated cover can be assembled in advance, the automatic production degree of module manufacturing is improved, the production efficiency is improved, and the strength of a connecting seam can be improved and the risk of breakage can be reduced as the connecting seam between the middle-section cover (3) and the positive electrode cover (1) and the negative electrode cover (2) at the two ends is not a straight line.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of battery module, specifically, the utility model relates to a module integrated cover structure. BACKGROUND

[0002] The integrated cover plate is mainly used for connecting the battery cells in series or parallel to provide higher voltage and higher current carrying capacity, and the appearance of the CCS integrated busbar provides the necessary conditions for the automation of battery pack production.

[0003] Patent No. 202410106155.7, published on May 3, 2024, discloses an integrated cover plate structure. It includes an upper cover plate (A) and a lower cover plate (B). The upper cover plate (A) includes multiple units, which are: upper cover plate one and two negative series units (A11), upper cover plate one and two positive series units (A12), upper cover plate one and four series units (A13), and upper cover plate one and five series units (A14). The lower cover plate (B) includes multiple units, which are: lower cover plate one and two negative series units (B11), lower cover plate one and two positive series units (B12), lower cover plate one and four series units (B13), and lower cover plate one and five series units (B14). The integrated cover plate structure of the utility model is made by a small number of molds corresponding to the upper cover plate unit and the lower cover plate unit mold. It is convenient and fast to meet the corresponding model and size of the battery module through combination, and the manufacturing cost is reduced.

[0004] The existing integrated cover plate cannot be assembled in advance, the degree of automation is low, which is not conducive to improving efficiency, and the connection seam is usually a straight line, which has low fracture resistance. INVENTION CONTENTS

[0005] The utility model aims to provide a module integrated cover structure with high production efficiency and strong fracture resistance.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a module integrated cover structure, which comprises an upper cover plate and a lower cover plate that are mutually buckled, the upper cover plate is divided into a positive cover, a negative cover and a middle cover, the positive cover and the negative cover are arranged at both ends of the middle cover, the positive cover, the negative cover and the middle cover are buckled on the lower cover plate, both ends of the middle cover are in a bent shape, and the positive cover and the negative cover are attached to both ends of the middle cover.

[0007] The middle cover is divided into side covers on both sides and an intermediate plate arranged between the side covers, both ends of the intermediate plate are in a bent shape, and the side covers are arranged in a staggered manner on both sides of the intermediate plate.

[0008] The inner side of the side cover is provided with a reinforcing rib.

[0009] The end of the side cover is provided with a fixing buckle matched with the positive cover and the negative cover.

[0010] The fixing buckle is alternately arranged between the positive cover and the side cover, and the fixing buckle is alternately arranged between the negative cover and the side cover.

[0011] The side cover is provided with a triangular insertion buckle, the insertion buckle is alternately arranged between the positive cover and the side cover, and the insertion buckle is alternately arranged between the negative cover and the side cover.

[0012] The lower cover plate is provided with a reinforcing rib, and the middle part of the lower cover plate is provided with a wire harness groove.

[0013] The top surface of the middle plate is lower than the top surface of the side cover.

[0014] The positive cover and the negative cover are both provided with a buckle matched with the lower cover plate, and the side edge of the middle cover is provided with a clamping groove matched with the lower cover plate.

[0015] The middle cover is a 1P4S cover or a 1P5S cover.

[0016] The technical effect of the utility model is that: through the integrated cover of splicing type, the upper surface is flat and beautiful, and can be assembled in advance, the degree of automatic production of module manufacturing is improved, the production efficiency is improved, and since the connecting seams between the middle cover and the positive cover and the negative cover at both ends are not straight lines, the strength of the connecting seams can be improved, and the risk of fracture is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present specification includes the following drawings, and the shown contents are respectively:

[0018] Figure 1 It is a structural schematic view of a module integrated cover structure of the utility model;

[0019] Figure 2 It is Figure 1 It is a lower cover plate schematic view of a module integrated cover structure;

[0020] Figure 3 It is Figure 1 It is a positive cover front view schematic view of a module integrated cover structure;

[0021] Figure 4 It is Figure 1 It is a positive cover rear view schematic view of a module integrated cover structure;

[0022] Figure 5 It is Figure 1 It is a negative cover front view schematic view of a module integrated cover structure;

[0023] Figure 6 It is Figure 1A negative cover rear view schematic diagram of one of the module integrated cover structures;

[0024] Figure 7 For Figure 1 A 1P4S cover front view schematic diagram of one of the module integrated cover structures;

[0025] Figure 8 For Figure 1 A 1P4S cover rear view schematic diagram of one of the module integrated cover structures;

[0026] Figure 9 For Figure 1 A 1P5S cover front view schematic diagram of one of the module integrated cover structures;

[0027] Figure 10 For Figure 1 A 1P5S cover rear view schematic diagram of one of the module integrated cover structures;

[0028] Figure 11 For Figure 1 A plug-in buckle separation schematic diagram of one of the module integrated cover structures;

[0029] Figure 12 For Figure 1 A plug-in buckle buckling schematic diagram of one of the module integrated cover structures.

[0030] In the figure, 1 is a positive cover, 2 is a negative cover, 3 is a middle cover, 31 is a side cover, 32 is an intermediate plate, 4 is a lower cover plate, 5 is a fixed buckle, 6 is a plug-in buckle, 7 is a wire harness groove, 8 is a buckle, and 9 is a clamping groove. DETAILED DESCRIPTION

[0031] The specific embodiments of the utility model will be further described in detail below by comparing the drawings and describing the embodiments, the purpose is to help the technical personnel in the field to have more complete, accurate and in-depth understanding of the utility model concept, technical scheme of the utility model, and to help its implementation.

[0032] Please refer to Figures 1-12 A module integrated cover structure includes an upper cover plate and a lower cover plate 4 buckled with each other, the upper cover plate is divided into a positive cover 1, a negative cover 2 and a middle cover 3, the positive cover 1 and the negative cover 2 are arranged at both ends of the middle cover 3, the positive cover 1, the negative cover 2 and the middle cover 3 are buckled on the lower cover plate 4, both ends of the middle cover 3 are in a bent shape, the positive cover 1 and the negative cover 2 are attached to both ends of the middle cover 3; through the integrated cover of splicing type, the upper surface is flat and beautiful, and can be assembled in advance, the degree of automatic production of module manufacturing is improved, the production efficiency is improved, and since the connecting seam between the middle cover 3 and the positive cover 1 and the negative cover 2 at both ends is not a straight line, the strength of the connecting seam can be improved, and the risk of fracture is reduced.

[0033] The middle section cover 3 is divided into side covers 31 on both sides and an intermediate plate 32 arranged between the side covers 31, the intermediate plate 32 is bent at both ends, and the side covers 31 are arranged staggered on both sides of the intermediate plate 32; the side covers 31 on both sides of the intermediate plate 32 are staggered left and right, so that the edges of the middle section cover 3 at both ends are bent, thereby reducing the risk of overall breakage of the product.

[0034] The inner side of the side cover 31 is provided with a reinforcing rib; the reinforcing rib increases the anti-breakage strength of the side cover 31 and reduces the risk of breakage.

[0035] The end of the side cover 31 is provided with a fixing buckle 5 matched with the positive electrode cover 1 and the negative electrode cover 2; the side cover 31 is connected with the positive electrode cover 1 and the negative electrode cover 2 through the fixing buckle 5, thereby improving the connection strength and avoiding separation between each other.

[0036] The fixing buckles 5 are alternately arranged between the positive electrode cover 1 and the side cover 31, and the fixing buckles 5 are alternately arranged between the negative electrode cover 2 and the side cover 31; since the fixing buckles 5 are alternately arranged, when the two are fixed, the situation that the fixing buckles 5 are loose and fall off and separate can be avoided.

[0037] The side cover 31 is provided with triangular insertion buckles 6, the insertion buckles 6 are alternately arranged between the positive electrode cover 1 and the side cover 31, and the insertion buckles 6 are alternately arranged between the negative electrode cover 2 and the side cover 31; the triangular insertion buckles 6 are used for mutual positioning, which is convenient for installation and can reduce the risk of separation.

[0038] The lower cover plate 4 is internally provided with a reinforcing rib, and the middle part of the lower cover plate 4 is provided with a wire harness groove 7; the anti-breakage strength of the lower cover plate 4 is improved, and the wire harness groove 7 is used for placing the wire harness.

[0039] The top surface of the intermediate plate 32 is lower than the top surface of the side cover 31; the upper surface of the product is not a complete plane, so that the anti-breakage risk on the cross section of the product can be improved.

[0040] The negative electrode cover 2 and the positive electrode cover 1 are both provided with buckles 8 matched with the lower cover plate 4, and the side edges of the middle section cover 3 are provided with clamping grooves 9 matched with the lower cover plate 4; the negative electrode cover 2, the positive electrode cover 1 and the middle section cover 3 are fixed on the lower cover plate 4 through the buckles 8 and the clamping grooves 9, which is convenient for installation and can also play a positioning and fixing effect.

[0041] The middle section cover 3 is a 1P4S cover or a 1P5S cover; the middle section cover 3 can be suitable for different models of products.

[0042] The technical effect of the utility model is that: through the integrated cover of the splicing type, the upper surface is flat and beautiful, and can be assembled in advance, the degree of automatic production of the module is improved, the production efficiency is improved, and since the connecting seams between the middle section cover 3 and the positive electrode cover 1 and the negative electrode cover 2 at both ends are not straight lines, the strength of the connecting seams can be improved, and the risk of breakage is reduced.

[0043] The utility model has been described exemplarily above in combination with the drawings. Apparently, the utility model is not limited by the above-mentioned mode in the specific implementation. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model; or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A modular integrated cover structure comprising an upper cover plate and a lower cover plate (4) which are mutually snap-fitted, characterized in that: The upper cover plate is divided into a positive cover (1), a negative cover (2) and a middle cover (3), the positive cover (1) and the negative cover (2) are arranged at two ends of the middle cover (3), the positive cover (1), the negative cover (2) and the middle cover (3) are buckled on the lower cover plate (4), two ends of the middle cover (3) are in a bent shape, and the positive cover (1) and the negative cover (2) are attached to the two ends of the middle cover (3).

2. The modular integrated cover structure of claim 1, wherein: The middle cover (3) is divided into side covers (31) on two sides and an intermediate plate (32) arranged between the side covers (31), two ends of the intermediate plate (32) are in a bent shape, and the side covers (31) are arranged in a staggered manner on two sides of the intermediate plate (32).

3. The modular integrated cover structure of claim 2, wherein: The inner side of the side cover (31) is provided with a reinforcing rib.

4. The module-integrated cover structure according to claim 2 or 3, characterized in that: The end of the side cover (31) is provided with a fixing buckle (5) matched with the positive cover (1) and the negative cover (2).

5. The modular integrated cover structure of claim 4, wherein: The fixing buckles (5) are alternately arranged between the positive cover (1) and the side cover (31), and the fixing buckles (5) are alternately arranged between the negative cover (2) and the side cover (31).

6. The modular integrated cover structure of claim 4, wherein: The side cover (31) is provided with a triangular insertion buckle (6), the insertion buckles (6) are alternately arranged between the positive cover (1) and the side cover (31), and the insertion buckles (6) are alternately arranged between the negative cover (2) and the side cover (31).

7. The modular integrated cover structure of claim 1, wherein: The lower cover plate (4) is provided with a reinforcing rib, and the middle part of the lower cover plate (4) is provided with a wire harness groove (7).

8. The modular integrated cover structure of claim 2, wherein: The top surface of the intermediate plate (32) is lower than the top surface of the side cover (31).

9. The modular integrated cover structure of claim 1, wherein: The negative cover (2) and the positive cover (1) are both provided with a buckle (8) matched with the lower cover plate (4), and the side edge of the middle cover (3) is provided with a clamping groove (9) matched with the lower cover plate (4).

10. The modular integrated cover structure of claim 1, wherein: The middle cover (3) is a 1P4S cover or a 1P5S cover.

Citation Information

Patent Citations

  • Integrated cover plate structure

    CN117977094A