Splicing and fixing structure for injection molding isolation plates in CCS

Abstract

The utility model discloses an injection molding isolation plate splicing and fixing structure in a CCS, which comprises an injection molding isolation plate group, the injection molding isolation plate group comprises an injection molding isolation plate I and an injection molding isolation plate II, and the injection molding isolation plate I and the injection molding isolation plate II are detachably connected along the horizontal direction through a clamping component; the first injection molding isolation plate and the second injection molding isolation plate are in vertical lap joint through lap joint plates at the same time, and a gap is reserved at the lap joint position. According to the utility model, the performance of the battery module is improved, the production efficiency and the economic benefit are also considered, and the battery module has good practical value and application prospect.

Description

Technical Field

[0001] This utility model relates to splicing and fixing structures, and more particularly to a splicing and fixing structure for injection-molded isolation plates in CCS. Background Technology

[0002] With current technological trends, consumers' expectations for the range of new energy vehicles are increasing, driving the trend towards larger power battery modules. As the size of power battery modules increases, the dimensions of their key internal component—the Battery Cell Connection System (CCS)—also need to increase accordingly. Against this backdrop, the injection-molded separators used to fix and support aluminum batteries and flexible printed circuit board (FPC) components in the CCS also require dimensional expansion design. However, larger injection-molded separators are prone to deformation during manufacturing, making accurate splicing and installation between separators difficult in practical applications. This problem poses a challenge to the overall performance and safety of the battery module. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides a splicing and fixing structure for injection-molded isolation plates in CCS.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is: a splicing and fixing structure for injection molded isolation plates in CCS, including an injection molded isolation plate assembly, the injection molded isolation plate assembly including an injection molded isolation plate one and an injection molded isolation plate two, the injection molded isolation plate one and the injection molded isolation plate two are detachably connected in the horizontal direction by a snap-fit ​​assembly;

[0005] Injection molded isolation plate one and injection molded isolation plate two are simultaneously overlapped by overlapping plates, with a gap reserved at the overlap position.

[0006] Furthermore, the snap-fit ​​assembly includes a snap-fit ​​component one and a snap-fit ​​component two. Snap-fit ​​component one is connected to either injection-molded isolation plate one or injection-molded isolation plate two. Snap-fit ​​component one has a first buckle. On the injection-molded isolation plate one or injection-molded isolation plate two that is not connected to snap-fit ​​component one, a first snap-fit ​​groove is formed that corresponds to the first buckle and engages with it. The first snap-fit ​​groove is located on snap-fit ​​component two.

[0007] Furthermore, the overlap plate is connected to either injection molded isolation plate one or injection molded isolation plate two. The overlap plate is integrally connected with either injection molded isolation plate to form a groove. The groove is used to overlap the injection molded isolation plates one or injection molded isolation plate two that are not connected to the overlap plate.

[0008] Furthermore, a gap of 0.2mm-0.5mm is reserved at the overlap position.

[0009] Furthermore, both injection molded isolation plate one and injection molded isolation plate two are equipped with smoke exhaust duct plates, and the connection between the smoke exhaust duct plate on injection molded isolation plate one and the smoke exhaust duct plate on injection molded isolation plate two is set with the shape of the overlapping plate.

[0010] Furthermore, it also includes a hot riveting assembly, which includes a column and a U-shaped wall. The column is connected to either the smoke exhaust duct plate of injection molded isolation plate one or the smoke exhaust duct plate of injection molded isolation plate two. The U-shaped wall is connected to the injection molded isolation plate of injection molded isolation plate one or the smoke exhaust duct plate of injection molded isolation plate two that is not connected to the column. The U-shaped wall forms a U-shaped groove corresponding to the column.

[0011] This utility model discloses a splicing and fixing structure for injection-molded isolation plates in CCS, which has the following advantages:

[0012] To improve stability and safety, this structure effectively solves the assembly problem of battery cell components with different tolerances by reserving gaps, guiding and limiting the overlapping plates, and fixing the components with thermal riveting. This not only improves the stability of the battery module but also enhances safety, because even in the event of thermal runaway in a battery cell, the generated heat and flames can be smoothly discharged through the smoke exhaust channel, thereby reducing the severity of the accident.

[0013] By improving the design, this utility model enables convenient assembly and disassembly of components, simplifying the production process and thus helping to reduce production costs.

[0014] The design of this structure allows for fast and accurate assembly, thus improving production efficiency.

[0015] Highly adaptable, the structure can adapt to different production needs and environments due to the multiple connection and fixing methods provided in the design, such as the interchangeable positions of snap-fit ​​parts and overlapping plates.

[0016] Easy to maintain and replace, the structure is designed to allow for quick and simple maintenance and replacement, reducing subsequent maintenance costs.

[0017] Versatility: The design of this structure takes into account injection-molded isolation plates of different sizes and shapes, making the structure highly versatile. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall axonometric structure of Embodiment 3.

[0019] Figure 2 This is a front view structural diagram of Example 1.

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of the structure within the circled area.

[0021] Figure 4 This is a front view structural diagram of Example 2.

[0022] Figure 5 This is a front view structural diagram of the overlapping plate position in Embodiment 3.

[0023] Figure 6 This is a sectional view of the lap joint location.

[0024] Figure 7 This is a cross-sectional view of the hot riveting assembly.

[0025] Figure 8 for Figure 1 An enlarged schematic diagram of the structure within the circled area.

[0026] In the diagram: 1. Injection-molded partition plate one; 2. Injection-molded partition plate two; 3. Clip-on component one; 4. Clip-on component two; 5. Overlap plate; 6. Smoke exhaust duct plate; 7. Column; 8. U-shaped wall; 31. First buckle; 41. First clip groove. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Example 1;

[0029] like Figure 2 and Figure 3 The diagram illustrates a CCS (Continuous Cushion System) injection-molded partition plate splicing and fixing structure, comprising an injection-molded partition plate assembly. The assembly includes injection-molded partition plate 1 and injection-molded partition plate 2. During use, each connecting piece is correspondingly positioned within an opening slot in the injection-molded partition plate assembly. Injection-molded partition plate 1 and injection-molded partition plate 2 are detachably connected horizontally via a snap-fit ​​assembly. (See reference...) Figure 8 The shown snap-fit ​​assembly (structure same as in Embodiment 3) includes snap-fit ​​component 3 and snap-fit ​​component 4. In this embodiment, snap-fit ​​component 3 is connected to injection-molded isolation plate 1. Snap-fit ​​component 3 has a first buckle 31. An injection-molded isolation plate 2 has a first snap-fit ​​groove 41 corresponding to the first buckle 31, located on snap-fit ​​component 4. Of course, in other embodiments, snap-fit ​​component 3 can also be connected to injection-molded isolation plate 2, and snap-fit ​​component 4 can also be connected to injection-molded isolation plate 1. Snap-fit ​​component 3 and snap-fit ​​component 4 are essentially male and female connectors. The fit between the connectors has a gap, and the fit between the male and female connectors enables the X, Y, and Z directions of mating guidance, limiting, and fixing between adjacent isolation plates.

[0030] Injection-molded isolation plate 1 and injection-molded isolation plate 2 are simultaneously overlapped vertically by overlapping plates 5, with a gap reserved at the overlap position. In this embodiment, as... Figure 6As shown, the overlapping plate 5 is connected to the injection-molded isolation plate 1. The overlapping plate 5 and the injection-molded isolation plate 1 are integrally connected to form a groove, which is used to overlap the injection-molded isolation plate 2. Of course, in other embodiments, the overlapping plate 5 can also be connected to the injection-molded isolation plate 2, where the groove is used to overlap the injection-molded isolation plate 1.

[0031] When injection molded partition plate 2 overlaps with injection molded partition plate 1, due to the large size of the partition plate, the actual production deformation is large. After the partition plate splicing limit between injection molded partition plate 1 and injection molded partition plate 2, there will be a situation where the mating dimensions are out of tolerance. A gap of 0.2mm is reserved at the overlap position (represented by F in the figure). This gap solves the problem of installation failure caused by deformation.

[0032] Example 2;

[0033] like Figure 4 The diagram illustrates a CCS (Continuous Cushion System) injection-molded partition plate splicing and fixing structure, comprising an injection-molded partition plate assembly. The assembly includes injection-molded partition plate 1 and injection-molded partition plate 2. During use, each connecting piece is correspondingly positioned within an opening slot in the injection-molded partition plate assembly. Injection-molded partition plate 1 and injection-molded partition plate 2 are detachably connected horizontally via a snap-fit ​​assembly. (See reference...) Figure 8 The shown snap-fit ​​assembly (structure same as in Embodiment 3) includes a snap-fit ​​component 3 and a snap-fit ​​component 4. In this embodiment, snap-fit ​​component 3 is connected to the injection-molded isolation plate 1. Snap-fit ​​component 3 has a first buckle 31. A first snap-fit ​​groove 41 corresponding to the first buckle 31 is formed on the injection-molded isolation plate 2, and the first snap-fit ​​groove 41 is located on snap-fit ​​component 4. Of course, in other embodiments, snap-fit ​​component 3 can also be connected to the injection-molded isolation plate 2, and snap-fit ​​component 4 can also be connected to the injection-molded isolation plate 1.

[0034] like Figure 6 The injection-molded isolation plate 1 and injection-molded isolation plate 2 shown are simultaneously overlapped vertically by overlapping plates 5, with a gap reserved at the overlap position. In this embodiment, the overlapping plate 5 is connected to the injection-molded isolation plate 1, and the overlapping plate 5 and the injection-molded isolation plate 1 are integrally connected to form a groove, which is used to overlap the injection-molded isolation plate 2. Of course, in other embodiments, the overlapping plate 5 can also be connected to the injection-molded isolation plate 2, where the groove is used to overlap the injection-molded isolation plate 1.

[0035] When injection molded isolation plate 2 overlaps with injection molded isolation plate 1, a gap of 0.5mm is reserved at the overlap position (represented by F in the figure). This gap solves the problem of installation failure caused by deformation.

[0036] In this embodiment, both injection molded isolation plate 1 and injection molded isolation plate 2 are equipped with smoke exhaust channel plates 6. The smoke exhaust channel plates 6 are planar plate structures with hollowed-out smoke exhaust channels. The connection between the smoke exhaust channel plates 6 on injection molded isolation plate 1 and the smoke exhaust channel plates 6 on injection molded isolation plate 2 is matched with the shape of the overlapping plate 5. The groove is Z-shaped. Therefore, the shapes of injection molded isolation plate 1 and injection molded isolation plate 2 should be matched according to this shape. In addition to overlapping, the overlapping plate 5 also serves as a guide when injection molded isolation plate 1 and injection molded isolation plate 2 are paired. However, it is not limited to the above shape. Theoretically, any shape that can achieve a stable overlapping structure and convenient guiding function is acceptable.

[0037] When injection-molded separator 1 and injection-molded separator 2 are overlapped by the overlap plate 5, due to the large deformation of the separator, the separator plays a role in matching, limiting the deformation of the separator, and sealing the position of the exhaust channel plate 6. This ensures the sealing of the exhaust channel of the cell in the power battery module, so that when the cell experiences thermal runaway, the heat and flame generated can be discharged from the exhaust channel, thereby minimizing the severity of the accident and reducing losses.

[0038] Example 3;

[0039] like Figure 1 and 5 As shown, based on Embodiment 2, this embodiment also includes a hot riveting assembly, such as... Figure 7 As shown, the hot-riveting assembly includes a column 7 and a U-shaped wall 8. The column 7 is connected to either the smoke exhaust channel plate 6 of injection-molded isolation plate 1 or the smoke exhaust channel plate 6 of injection-molded isolation plate 2. The U-shaped wall 8 is connected to the injection-molded isolation plate 6 of injection-molded isolation plate 1 or the smoke exhaust channel plate 6 of injection-molded isolation plate 2 that is not connected to the column 7. The U-shaped wall 8 forms a U-shaped groove corresponding to the column 7. The column 7 can be fitted inside the U-shaped wall 8, so that after the adjacent isolation plates with relatively large deformations are spliced, they can be limited and fixed at the position of the smoke exhaust channel.

[0040] In summary, this utility model provides an innovative solution. This design not only adapts to various sizes of separator plates but also possesses excellent sealing and fixation, effectively solving the installation difficulties caused by deformation. This improves the assembly quality and reliability of the power battery module. The structural design aims to meet the development needs of large-scale battery modules, providing a practical technical improvement for the new energy vehicle industry. By reserving gaps, using overlapping plates for guide positioning, and employing hot-riveting components for fixation, the assembly problem of battery cell components with different tolerances is effectively solved, improving the stability and safety of the battery module while reducing production costs and increasing production efficiency.

[0041] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A splicing and fixing structure of injection molded isolation plates in a CCS, comprising an injection molded isolation plate group, characterized in that: The injection molded isolation plate assembly comprises an injection molded isolation plate one and an injection molded isolation plate two, and the injection molded isolation plate one and the injection molded isolation plate two are detachably connected in a horizontal direction through a clamping assembly; The injection molded isolation plate one and the injection molded isolation plate two are simultaneously overlapped up and down through a lap plate, and a gap is reserved at the overlapping position.

2. The injection molded spacer panel splicing and fixing structure in the CCS according to claim 1, characterized in that: The clamping assembly comprises a clamping piece one and a clamping piece two, the clamping piece one is connected to any one of the injection molded isolation plate one and the injection molded isolation plate two, the clamping piece one is provided with a first clasp, a first clamping groove corresponding to the first clasp is formed on the injection molded isolation plate not connected with the clamping piece one, and the first clamping groove is located on the clamping piece two.

3. The injection molded spacer panel splicing and fixing structure in the CCS according to claim 1, characterized in that: The lap plate is connected to any one of the injection molded isolation plate one and the injection molded isolation plate two, the lap plate is integrally connected with the any one injection molded isolation plate to form a type groove, and the type groove is used for overlapping the injection molded isolation plate not connected with the lap plate.

4. The splicing and fixing structure of injection-molded isolation plates in a CCS according to any one of claims 1-3, characterized in that: A gap of 0.2mm-0.5mm is reserved at the overlapping position.

5. The injection molded spacer panel splicing and fixing structure in the CCS according to claim 4, characterized in that: The injection molded isolation plate one and the injection molded isolation plate two are both provided with a smoke exhaust channel plate, and the connection of the smoke exhaust channel plate on the injection molded isolation plate one and the smoke exhaust channel plate on the injection molded isolation plate two is matched with the shape of the lap plate.

6. The injection molded spacer panel splicing and fixing structure in the CCS according to claim 5, characterized in that: Further comprising a hot riveting assembly, the hot riveting assembly comprises a column and a U-shaped wall, the column is connected to any one of the smoke exhaust channel plate of the injection molded isolation plate one and the smoke exhaust channel plate of the injection molded isolation plate two, the U-shaped wall is connected to the injection molded isolation plate not connected with the column among the smoke exhaust channel plate of the injection molded isolation plate one and the smoke exhaust channel plate of the injection molded isolation plate two, and the U-shaped wall is formed with a U-shaped groove corresponding to the column.

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