Split type isolation plate for lithium battery module

Abstract

The utility model discloses a split type isolation plate of a lithium battery module, which comprises an end isolation plate I, an end isolation plate II and splicing plates, the end isolation plate I and the end isolation plate II are positioned on two sides, the splicing plates are positioned between the end isolation plate I and the end isolation plate II, and the number of the splicing plates is not unique. The splicing plates are detachably connected with the first end isolation plate and the second end isolation plate, and the splicing plates are detachably connected with one another. And the end part isolation plate I and the end part isolation plate II are respectively clamped with side plates on two sides of the battery module. According to the scheme, the isolation plates are arranged to be split, splicing can be performed according to the number of the battery cells, length change is achieved, the use requirement is met, and compared with an integrally-formed structure, the use flexibility is high, the universality is high, and the research, development and production cost is reduced. The modules of the isolation plate are interlocked through the connecting pieces, and the joints are of irregular structures, so that the isolation plate is high in stability and not easy to break.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and more specifically to a lithium battery module split isolation plate. Background Art

[0002] The separator is an essential component in the lithium battery module. At present, the separators in the modules made by various battery factories or car factories are all integrated and formed by hot pressing or injection molding. This can only be applied to one module, not to diversified modules. Diverse modules need to be redeveloped or standard separators are made. This greatly reduces the scope of use of the separator, increases costs and working hours, and thus reduces work efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a lithium battery module split isolation plate to solve the technical problems existing in the above-mentioned background technology.

[0004] The utility model provides a split isolation plate for a lithium battery module, comprising an end isolation plate 1, an end isolation plate 2, and a splicing plate between the end isolation plate 1 and the end isolation plate, wherein the number of the splicing plates is not unique, the splicing plate and the end isolation plate 1 and the end isolation plate 2 can be detachably connected, and the splicing plates can be detachably connected to each other;

[0005] The first end isolation plate and the second end isolation plate are respectively clamped with the side plates on both sides of the battery module.

[0006] In a preferred embodiment, the ends of the first and second end isolation plates connected to the splicing plate are both irregularly shaped, and the two sides of the splicing plate are correspondingly arranged to be irregularly shaped.

[0007] In a preferred embodiment, the end isolation plate 1, the splicing plate and the end isolation plate 2 are sequentially connected by connecting pieces.

[0008] In a preferred embodiment, the connecting members are arranged in two groups on the same fixed side.

[0009] In a preferred embodiment, the connecting member includes a clamping block and a clamping groove corresponding to the clamping block, and the clamping block is deformable.

[0010] In a preferred embodiment, both ends of the end isolation plate 1 and the end isolation plate 2 are provided with limiting grooves, a buckle is provided on the side plate of the battery module, a limiting block is provided in the limiting groove, and the buckle extends into the limiting groove and is limited by the limiting block.

[0011] The beneficial effects of the technical solution of the utility model are:

[0012] The isolation board of this solution is set as a split type, which can be spliced ​​according to the number of battery cells to achieve length changes to meet the use requirements. Compared with the one-piece molding structure, it has high flexibility and versatility, and reduces R&D and production costs. The modules of the isolation board are interlocked through connectors, and the connection is an irregular structure, which is stable and not easy to break. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a diagram showing the position relationship between the isolation plate and the battery module of the utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure of the isolation board of the utility model.

[0015] Figure 3 This is the disassembly diagram of the isolation plate structure of the utility model.

[0016] Figure 4 For this utility model Figure 3 A magnified image of the middle part.

[0017] Figure 5 This is a bottom-up view of the isolation board of the utility model.

[0018] Figure 6 For this utility model Figure 5 Enlarged view of area B.

[0019] Explanation of the accompanying drawings: 1 isolation plate, 2 end isolation plate one, 3 end isolation plate two, 4 splicing plate, 5 connecting piece, 6 card block, 7 card slot, 8 side plate, 9 buckle, 10 limit slot, 11 limit block, 12 top cover patch, 13 flexible circuit board, 14 busbar, 15 outer protective plate. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the sake of illustration and convenience of description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0021] like Figure 1-6As shown, the technical solution of the utility model provides a split isolation plate 1 for a lithium battery module, which is located on the battery module. The isolation plate 1 is located between the busbar 14, the flexible circuit board 13 and the battery cell, and plays an isolation role. The top cover patch 12 is fixed to the isolation plate 1 by staples, which plays a role in preventing insulation and preventing dust from falling. The isolation plate 1 of this solution is set to be split, and can be spliced ​​according to the number of battery cells to achieve length changes to meet the use requirements.

[0022] The isolation plate 1 of the present scheme includes an end isolation plate 2 and an end isolation plate 3 located on both sides, and a splicing plate 4 located between the end isolation plate 2 and the end isolation plate 1. The number of the splicing plates 4 is not unique. The splicing plates 4 can be detachably connected to the end isolation plate 2 and the end isolation plate 2 3, and the splicing plates 4 can be detachably connected to each other.

[0023] The basic plate body of the isolation plate 1 is the end plate isolation plate 1- and the end isolation plate 2 3. The end isolation plate 1 2 and the end isolation plate 2 3 can also be spliced ​​with each other. In actual use, the number of battery cells in different models is different. When the number of cells is large, the length of the isolation plate 1 cannot be applied. By adding a splicing plate 4 between the end isolation plate 1 2 and the end isolation plate 2 3, the partition can be lengthened. According to specific use requirements, a corresponding number of splicing plates 4 are added. Compared with the one-piece molding structure, the isolation plate 1 of this solution has high flexibility and versatility, and reduces R&D and production costs.

[0024] The connection sides of the end isolation plate 1 2 and the end isolation plate 2 3 with the splicing plate 4 are both irregular shapes, and the two sides of the splicing plate 4 are correspondingly set to irregular shapes. The irregular shape can increase the connection stability of the connection and is not easy to break.

[0025] The end isolation plate 1 2, the splicing plate 4, and the end isolation plate 2 3 are connected in sequence by a connecting piece 5. The connecting piece 5 is provided in two groups on the same fixed side to increase the fixing strength. The connecting piece 5 includes a clamping block 6 and a clamping slot 7 corresponding to the clamping block, and the clamping block 6 is deformable.

[0026] When connected, the card block 6 faces the card slot 7 and is located below the card slot 7. The card slot 7 is pressed down, and the card block 6 is deformed to a certain extent and passes through the card slot 7, and then returns to its original state. The card slot 7 realizes the limitation and fixation of the corresponding card block 6, which is convenient for disassembly and assembly and easy to operate.

[0027] The end isolation plate 1 2 and the end isolation plate 2 3 are respectively clamped with the side plates 8 on both sides of the battery module. The ends of the end isolation plate 1 2 and the end isolation plate 2 3 are both provided with limiting grooves 10, and the side plates 8 of the battery module are provided with buckles 9, and limiting blocks 11 are provided in the limiting grooves 10. The buckles 9 extend into the limiting grooves 10 and are limited by the limiting blocks 11. After the isolation plate 1 is spliced, it is placed on the battery module, and the isolation plate 1 is fixed by the buckle 9, the slot 7 and the limiting blocks 11 in the slot 7 to prevent the isolation plate 1 from moving laterally during use. An outer protective plate 15 is provided on the outside of the battery module to achieve overall protection of the battery module and heat dissipation at the same time.

[0028] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A split isolation plate for lithium battery modules, characterized in that: It includes an end isolation plate 1 and an end isolation plate 2 located on both sides, and a splicing plate located between the end isolation plate 1 and the end isolation plate. The number of the splicing plates is not unique. The splicing plate and the end isolation plate 1 and the end isolation plate 2 can be detachably connected, and the splicing plates can be detachably connected to each other. The first end isolation plate and the second end isolation plate are respectively clamped with the side plates on both sides of the battery module.

2. A lithium battery module split isolation plate according to claim 1, characterized in that: The connection sides of the end isolation plate 1 and the end isolation plate 2 with the splicing plate are both irregular shapes, and the two sides of the splicing plate are correspondingly arranged to be irregular shapes.

3. A lithium battery module split isolation plate according to claim 1, characterized in that: The first end isolation plate, the splicing plate and the second end isolation plate are connected in sequence through a connecting piece.

4. A lithium battery module split isolation plate according to claim 3, characterized in that: The connecting members are arranged in two groups on the same fixed side.

5. A lithium battery module split isolation plate according to claim 3, characterized in that: The connecting member comprises a clamping block and a clamping slot corresponding to the clamping block, and the clamping block is deformable.

6. A lithium battery module split separator according to claim 1, characterized in that: The ends of the end isolation plate 1 and the end isolation plate 2 are both provided with limiting grooves, the side plates of the battery module are provided with buckles, and limiting blocks are provided in the limiting grooves. The buckles extend into the limiting grooves and are limited by the limiting blocks.

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