Power battery module sampling fast integration device

Abstract

The utility model discloses a power battery module sampling fast integration device comprising a wire harness isolation plate used as a carrier of a CCS integrated busbar; the aluminum bar is mounted in the profiling groove of the wire harness isolation plate; the flexible printed circuit board is mounted on the wire harness isolation plate to serve as a module sampling circuit; the NTC integrated assembly comprises an injection molding support and an NTC chip arranged in the injection molding support, the NTC chip is connected with a flexible printed circuit board, and the flexible printed circuit board is attached to the injection molding support at the same time. The rapid sampling integrated device for the power battery module has remarkable advantages and effects in the aspects of optimizing BMS management and control, reducing later maintenance cost, improving product design efficiency and the like.

Description

Technical Field

[0001] The utility model relates to a power battery sampling device, in particular to a power battery module sampling quick integrated device. Background Art

[0002] Driven by the development of new energy electric vehicles and the energy storage industry, battery technology continues to advance. CCS integrated busbars, as a key component, are also developing towards high safety, high integration, lightweight design, and low cost. Traditional wiring harness solutions are no longer sufficient, while cost-effective, integrated and lightweight solutions such as FPC / PCB, FFC, and FDC are rapidly gaining popularity. Furthermore, integration processes such as thermoforming and PET film hot pressing are also evolving. CCS integrated busbars are available in a variety of forms, allowing end users to select the optimal solution based on their specific application scenarios. These diverse materials and integration processes offer a variety of solutions to meet diverse needs and application scenarios, making the system more efficient, safe, reliable, and cost-effective. In summary, CCS integrated busbars hold great potential for application in the new energy electric vehicle and energy storage industries. However, these applications also require addressing design and manufacturing difficulties, safety issues, and applicability limitations. Continuous design optimization is needed to further improve system performance and safety, reduce costs, and promote the development of the new energy vehicle and energy storage industries. Utility Model Content

[0003] In order to solve the deficiencies of the above technologies, the present invention provides a power battery module sampling quick integrated device.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is a power battery module sampling quick integrated device, comprising:

[0005] Wire harness isolation plate, serving as the carrier of CCS integrated busbar;

[0006] Aluminum bar, installed in the contoured slot of the harness isolation plate;

[0007] Flexible printed circuit board, installed on the harness isolation board as the module sampling circuit;

[0008] The NTC integrated component includes an injection-molded bracket and an NTC chip placed in the injection-molded bracket. The NTC chip is connected to a flexible printed circuit board, and the flexible printed circuit board is also attached to the injection-molded bracket.

[0009] Furthermore, the injection molded bracket has an NTC chip installation space, and the NTC chip installation space is aligned with the hollow portion of the harness isolation plate through the flexible printed circuit board attached to the injection molded bracket, and the NTC chip is installed in the NTC chip installation space.

[0010] Furthermore, a thermal pad is connected to the end surface of the flexible printed circuit board on the side away from the NTC chip installation space, and the thermal pad passes through the hollow portion of the wiring harness isolation plate.

[0011] Furthermore, the wiring harness isolation plate is provided with heat rivet studs for fixing the aluminum bar.

[0012] Furthermore, the NTC integrated component also includes a shield, which includes a connector and a shield that are integrally connected. The connector is mounted on the wire harness isolation plate, and the shield is buckled onto the NTC integrated component.

[0013] Furthermore, an opening for the flexible printed circuit board to pass through is formed on one side of the cover.

[0014] The utility model discloses a power battery module sampling quick integrated device, which has the following advantages:

[0015] 1. Optimizes BMS control of the module and the convenience of subsequent maintenance: By integrating the NTC and injection-molded bracket into a single unit and using the connection terminal to directly plug into the BMS, the module sampling circuit is conveniently integrated and easily disassembled for subsequent maintenance, reducing maintenance costs.

[0016] 2. Reduced design and manufacturing difficulty: Through simple and efficient FPC and NTC assembly methods, the design and manufacturing difficulty is reduced and safety is improved.

[0017] 3. Strong adaptability: It provides the possibility of adding, reducing or changing the location of module sampling points flexibly, optimizes the injection molding bracket structure, reduces the assembly steps of CCS manufacturers, completely eliminates unnecessary mold repair costs caused by changes in demand, and greatly improves product design efficiency.

[0018] 4. Satisfies the customer's BMS's customized monitoring requirements for the module: The module can be customized and monitored according to customer needs, meeting the customer's personalized needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 Schematic diagram of the structure of the shield and NTC integrated components.

[0021] Figure 3 for Figure 1 Enlarged schematic diagram of the structure of the part in the middle circle.

[0022] In the figure: 1. Wire harness isolation plate; 2. Aluminum bar; 3. NTC integrated component; 4. Flexible printed circuit board; 5. Thermal pad; 11. Hollow part; 12. Thermal rivet column; 31. Injection molding bracket; 32. NTC chip; 33. Protective cover; 311. NTC chip installation space; 331. Connector; 332. Cover. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] like Figure 1-3 The power battery module sampling quick integration device shown includes a harness isolation plate 1, an aluminum bar 2, an NTC integrated component 3, a flexible printed circuit board 4 and a thermal pad 5. It is designed based on the FPC solution to optimize the BMS's control over the module and the convenience of subsequent maintenance. It integrates the NTC and the injection molded bracket into a single individual, uses a connecting terminal to directly plug into the BMS (battery management system), and connects the sampling battery cell and the BMS through a flexible printed circuit board, aiming to reduce the difficulty of design and manufacturing, and improve safety issues and applicability limitations.

[0025] Specifically, the harness isolation plate 1, as a carrier of the CCS integrated busbar, plays the role of insulation protection, etc., an aluminum bar 2 is installed in the contoured groove opened on the harness isolation plate 1, and the aluminum bar is responsible for connecting the battery cells in the module in series and parallel in the structure, and the harness isolation plate 1 is provided with a hot rivet column 12 for fixing the aluminum bar 2; at the same time, it includes a flexible printed circuit board 4 installed on the harness isolation plate 1 as a module sampling circuit, and an NTC integrated component 3 is connected to the flexible printed circuit board 4. The NTC integrated component 3 includes an injection molding bracket 31 and an NTC chip 32 placed in the injection molding bracket 31. The injection molding bracket 31 has an NTC chip installation space 311. The NTC chip installation space 311 is aligned with the hollow part 11 of the harness isolation plate 1 through the flexible printed circuit board 4 covered on the injection molding bracket 31. The flexible printed circuit board 4 is also covered on the injection molding bracket 31, and the NTC chip 32 is installed in the NTC chip installation space 311. A thermal pad 5 is connected to the end face on the side facing away from the NTC chip installation space 311. The thermal pad 5 is attached to the battery cell through the hollow part 11 of the wiring harness isolation plate 1. The NTC chip 32 collects the temperature of the battery cell and transmits it to the BMS through the flexible printed circuit board 4. During assembly, the wiring harness isolation plate is first fixed, and the NTC integrated component is placed according to the thermal rivet column and the contoured groove of the hollow part on the wiring harness isolation plate. Then the aluminum bar is placed and the FPC is placed to complete the assembly, thereby forming a simple and efficient FPC and NTC assembly method, reducing the design and manufacturing difficulty; at the same time, the NTC integrated component 3 also includes a shield 33, the shield 33 has an integrally connected connector 331 and a cover body 332, the connector 331 is installed on the wiring harness isolation plate 1, and the cover body 332 is buckled on the NTC integrated component 3, and the cover body 332 is used to protect the NTC chip 32 from deformation caused by external interference, thereby ensuring safety; an opening is formed on one side of the cover body 332 for the flexible printed circuit board 4 to pass through. Therefore, a wiring harness isolation plate is formed to reserve the installation position of the NTC integrated component at the aluminum bar. When the NTC position needs to be changed, it is only necessary to unplug the NTC integrated component at the corresponding position of the bar and reinstall it to the bar position of the corresponding battery cell to quickly complete the installation. The above installation method can be plug-in or bonding.

[0026] In summary, the utility model discloses a quick integration solution for module sampling based on FPC solution design, which can realize the customer's BMS customized monitoring requirements for the module, reduce the subsequent maintenance costs, make the module sampling points more flexible to add, reduce or change the position, optimize the injection molding bracket structure, reduce the CCS manufacturer's assembly steps, completely eliminate unnecessary mold repair costs caused by changes in requirements, and greatly improve product design efficiency.

[0027] 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 module sampling quick integrated device, characterized in that: include: A wiring harness isolation plate (1) serving as a carrier for the CCS integrated busbar; An aluminum bar (2) is installed in the contoured groove of the wiring harness isolation plate (1); A flexible printed circuit board (4) is mounted on the wiring harness isolation plate (1) as a module sampling circuit; The NTC integrated component (3) comprises an injection molded bracket (31) and an NTC chip (32) placed in the injection molded bracket (31), wherein the NTC chip (32) is connected to a flexible printed circuit board (4), and the flexible printed circuit board (4) is simultaneously attached to the injection molded bracket (31).

2. The power battery module sampling quick integrated device according to claim 1, characterized in that: The injection molding bracket (31) has an NTC chip installation space (311), and the NTC chip installation space (311) is aligned with the hollow portion (11) of the harness isolation plate (1) through the flexible printed circuit board (4) attached to the injection molding bracket (31), and the NTC chip (32) is installed in the NTC chip installation space (311).

3. The power battery module sampling quick integration device according to claim 2, characterized in that: A thermal pad (5) is connected to the end surface of the flexible printed circuit board (4) on the side facing away from the NTC chip installation space (311), and the thermal pad (5) passes through the hollow portion (11) of the harness isolation plate (1).

4. The power battery module sampling quick integrated device according to any one of claims 1 to 3, characterized in that: The wiring harness isolation plate (1) is provided with a heat rivet post (12) for fixing the aluminum bar (2).

5. The power battery module sampling quick integrated device according to claim 4, characterized in that: The NTC integrated component (3) further comprises a shield (33), the shield (33) comprising a connector (331) and a shield (332) connected in one piece, the connector (331) being mounted on the wiring harness isolation plate (1), and the shield (332) being buckled onto the NTC integrated component (3).

6. The power battery module sampling quick integrated device according to claim 5, characterized in that: An opening for the flexible printed circuit board (4) to pass through is formed on one side of the cover body (332).

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