Power battery CCS assembly with novel chip and fixing structure

Abstract

The utility model discloses a power battery CCS assembly with a novel chip and a fixing structure, which comprises an injection molding isolation plate and further comprises an FPC (flexible printed circuit) fixedly assembled on the injection molding isolation plate through a buckle type fixing structure; the chip is installed on the injection molding isolation plate, the middle of the chip is bent to form a bent structure, and heat dissipation grooves are evenly distributed in the chip. According to the utility model, a novel chip structure is provided, and a novel FPC and chip fixing structure is designed, so that the anti-seismic performance and the heat dissipation effect of a CCS product are improved, and meanwhile, the installation process is simplified.

Description

Technical Field

[0001] The utility model relates to a CCS component, in particular to a power battery CCS component with a novel fixing structure, and relates to the field of power batteries. Background Art

[0002] With the rapid development of the new energy vehicle and energy storage markets, advances in power battery technology are key to improving overall system performance. In existing technologies, electrical connections between battery cells are usually achieved through CCS (Cell Connecting System) bars, while signal transmission relies on flexible printed circuits (FPCs). Therefore, the provision of bars and FPCs as key components is of great significance to the performance improvement of CCS components. However, most traditional CCS bar structures lack design improvements in shock resistance and heat dissipation performance, and the FPC connection method has problems such as inconvenient installation and poor structural stability. In particular, during the operation of the battery module, the accumulation of vibration and heat may cause loose electrical connections or poor contact, thereby affecting the safety and service life of the entire system. Utility Model Content

[0003] In order to solve the deficiencies of the above technologies, the present invention provides a power battery CCS assembly with a new type of bar and fixing structure.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a power battery CCS assembly with a new type of bar and fixing structure, including an injection molded isolation plate, which also includes:

[0005] FPC, FPC is fixed and assembled on the injection molded isolation board through a snap-on fixing structure;

[0006] The bar is installed on the injection-molded isolation plate. The middle part of the bar is bent to form a curved structure, and heat dissipation grooves are evenly distributed on the bar.

[0007] Preferably, the snap-on fixing structure includes: a snap, a buffer gasket and a hook fixing hole;

[0008] The hook fixing hole is opened on the injection molded isolation plate and is assembled with the buckle; the buffer gasket is fixed on the buckle.

[0009] Preferably, both ends of the buckle are formed with L-shaped hooks, which pass through the hook fixing hole and are hooked at the hook fixing hole for fixation.

[0010] Preferably, when the hook of the buckle is engaged and assembled into the hook fixing hole, the buffer gasket is located between the buckle and the FPC.

[0011] Preferably, the injection molded isolation plate is further provided with an undercut structure, and the tab is fixedly mounted on the injection molded isolation plate by cooperating with the undercut structure through pressing.

[0012] Preferably, a tab fixing hole is provided on the tab for the inverted structure to press through.

[0013] Preferably, the heat dissipation groove is located where the curved structure is located.

[0014] The utility model discloses a power battery CCS component with a new type of tab and fixing structure, provides a newly designed tab structure, and designs a new FPC and tab fixing structure, thereby improving the seismic performance and heat dissipation effect of the CCS product and simplifying the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model.

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A.

[0018] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point B.

[0019] Figure 5 It is a structural diagram of the bar of the utility model.

[0020] In the figure: 1. Buckle; 11. Hook; 2. Buffer gasket; 3. FPC; 4. Injection-molded isolation plate; 5. Tab; 51. Bending structure; 52. Heat dissipation slot; 53. Tab fixing hole; 6. Hook fixing hole; 7. Inverted structure. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] The utility model discloses a power battery CCS assembly with a new type of bar and fixing structure, such as Figure 1 As shown, the structure mainly includes: injection molded isolation plate 4, FPC 3, bar 5 and snap-on fixing structure;

[0023] Among them, the injection-molded isolation plate is a plastic plate molded by the injection molding process, which plays the role of supporting the installation of FPC3 and the bar 5, and can also isolate the module from the outer box group.

[0024] FPC, or flexible printed circuit board, is primarily used for signal transmission in battery management systems (BMS). One end of the FPC is connected to the BMS via a flexible connector, enabling reliable signal transmission.

[0025] In order to ensure the stability of FPC and the flexibility of installation, such as Figure 2 and Figure 3 As shown, the CCS assembly disclosed in the present invention utilizes a snap-fit ​​fixing structure to fix and assemble the FPC 3 on the injection molded isolation plate 4. The snap-fit ​​fixing structure specifically includes: a snap 1, a buffer gasket 2, and a hook fixing hole 6.

[0026] The hook fixing hole 6 is a through-hole structure provided on the injection-molded isolation plate 4 , and is mainly used for engaging and assembling with the buckle 1 .

[0027] The buckle 1 is made of high-temperature resistant and high-strength plastic, and can effectively prevent the FPC from loosening in a vibration environment by cooperating with the hook fixing hole. Figure 3 As shown, L-shaped hooks 11 are formed at both ends of the buckle 1. The hooks 11 pass through the hook fixing holes 6 and are hooked at the hook fixing holes 6 to achieve fixation.

[0028] The buffer gasket 2 is a buffer structure fixed inside the buckle 1 and is made of rubber or elastic material. The buffer gasket 2 and the buckle 1 are combined into one through a secondary injection molding process. When the hook 11 of the buckle 1 is engaged and assembled into the hook fixing hole 6, the buffer gasket 2 is located between the buckle 1 and the FPC 3, which can effectively absorb the vibration and impact generated during the operation of the system, thereby ensuring the long-term stability of the FPC electrical connection.

[0029] In order to further improve the structure of CCS, the present invention also improves the structure of the bar. The bar 5 is made of highly conductive material and is silver-plated or nickel-plated to reduce contact resistance.

[0030] First, the bar is fixed using the inverted structure 7 on the injection-molded isolation plate 4. The inverted structure 7 is installed in conjunction with the bar using the snap-fit ​​structure principle to fix the bar and prevent it from falling off, thereby ensuring the stability of the electrical connection of the bar.

[0031] Specific as Figure 4 As shown, the injection molded isolation plate 4 is provided with an undercut structure 7. Figure 5 As shown, the tab 5 is provided with a tab fixing hole 53 for the undercut structure 7 to press through. Thus, the tab 5 cooperates with the undercut structure 7 by pressing to be fixedly mounted on the injection molded isolation plate 4.

[0032] Secondly, in order to improve the shock resistance and heat dissipation performance of the bar 5, Figure 5As shown, the shape of the tab 5 is specifically designed. The middle portion of the tab 5 is bent to form a curved structure 51. This curved structure improves the tab's shock resistance and installation flexibility. Furthermore, heat dissipation slots 52 are evenly distributed throughout the tab 5, located where the curved structure 51 is located. These slots improve heat dissipation efficiency. Thus, the unique tab structure of this novel design ensures guidance while providing flexibility, shock resistance, and heat dissipation.

[0033] In summary, for the power battery CCS assembly with a new type of tab and fixing structure disclosed in the utility model, on the one hand, a new fixing structure of the FPC and the injection-molded isolation plate is provided, and the FPC is fixed to the injection-molded isolation plate by snaps and buffer gaskets, which has the advantages of easy installation and reliable structural stability; on the other hand, a new fixing structure of the tab and the injection-molded isolation plate is provided, and the tab is assembled and fixed to the injection-molded isolation plate by an inverted structure combined with pressing, which also has the advantages of easy installation and stable structure. At the same time, the tab structure has also been specifically improved and designed, namely: the tab shape is designed to be a curved structure in the middle and has evenly distributed heat dissipation grooves. While ensuring conductivity, the tab provides certain flexibility, shock resistance and heat dissipation function, thereby further optimizing the product performance of the CCS.

[0034] The above-mentioned implementation manner is not a limitation of the present invention, and the present invention is not limited to the above-mentioned examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A power battery CCS assembly with a novel bar and fixing structure, comprising an injection molded isolation plate (4), characterized in that: It also includes: An FPC (3), wherein the FPC (3) is fixedly assembled on the injection-molded isolation plate (4) via a snap-on fixing structure; A bar (5) is installed on the injection-molded isolation plate (4), the middle portion of the bar (5) is bent to form a curved structure (51), and heat dissipation grooves (52) are evenly distributed on the bar (5).

2. The power battery CCS assembly with a novel bar and fixed structure according to claim 1 is characterized by: The snap-on fixing structure comprises: a snap (1), a buffer gasket (2), and a hook fixing hole (6); The hook fixing hole (6) is provided on the injection molded isolation plate (4) and is assembled with the buckle (1); the buffer gasket (2) is fixed on the buckle (1).

3. The power battery CCS assembly with a novel bar and fixed structure according to claim 2 is characterized by: L-shaped hooks (11) are formed at both ends of the buckle (1). The hooks (11) pass through the hook fixing holes (6) and are hooked at the hook fixing holes (6) to be fixed.

4. The power battery CCS assembly with a novel bar and fixed structure according to claim 3 is characterized by: When the hook (11) of the buckle (1) is engaged and assembled into the hook fixing hole (6), the buffer gasket (2) is located between the buckle (1) and the FPC (3).

5. The power battery CCS assembly of the novel bar and fixed structure according to any one of claims 1 to 4, characterized in that: The injection molded isolation plate (4) is further provided with an undercut structure (7), and the tab (5) is fixedly mounted on the injection molded isolation plate (4) by cooperating with the undercut structure (7) by pressing.

6. The power battery CCS assembly with a novel bar and fixed structure according to claim 5 is characterized by: The flap (5) is provided with a flap fixing hole (53) for the inverted structure (7) to press through.

7. The power battery CCS assembly with a novel bar and fixed structure according to claim 6 is characterized by: The heat dissipation groove (52) is located where the curved structure (51) is located.

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