Universal FPC and CCS assembly applied to power battery

Abstract

The utility model discloses a universal FPC (Flexible Printed Circuit) applied to a power battery. The universal FPC comprises an FPC assembly with double rows of voltage sampling connection points and double interface terminals, each side of the voltage sampling connection points of the two rows is connected with at least one aluminum bar, and each side of the voltage sampling connection points of the two rows is connected with at least one aluminum bar after the voltage sampling connection points are rotated by 180 degrees in the horizontal direction. The utility model discloses a universal FPC (Flexible Printed Circuit) applied to a power battery. The universal FPC has remarkable advantages in the aspects of universality, cost effectiveness, maintenance convenience, stability, safety and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of FPC and CCS assembly, especially a kind of general FPC and CCS assembly applied to power battery. BACKGROUND

[0002] Power battery needs BMS system to monitor and regulate the voltage of battery during operation process, to ensure the safety, performance and life of battery. In order to monitor the voltage of battery, there will be voltage monitoring connection in battery pack. These voltage sampling points need to be closely connected with each part of battery (such as aluminum bar) to accurately measure voltage. Flexible circuit board (FPC) is often used for connection in battery assembly due to its softness and adaptability. Traditional FPC design may need to use different molds for different battery models. Using special mold to manufacture FPC will increase production cost, and will cause waste of production time when changing mold. Therefore, in order to reduce cost and improve production efficiency, it is necessary to design a general FPC which can adapt to the installation requirements of different battery assemblies without changing mold. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a kind of general FPC applied to power battery.

[0004] In order to solve the above technical problems, the utility model adopts the technical scheme that a kind of general FPC applied to power battery, including FPC assembly with double-row voltage sampling connection point and double-interface terminal;

[0005] Each voltage sampling connection point connects one aluminum bar on each side, and can rotate 180° in horizontal direction to connect one aluminum bar on each side of each voltage sampling connection point.

[0006] A kind of CCS assembly, including general FPC applied to power battery, comprising:

[0007] Injection-molded isolation plate is provided with left and right two rows of installation grooves for installing aluminum bar along the length direction;

[0008] A plurality of aluminum bars are one-to-one correspondingly arranged in the installation grooves;

[0009] FPC assembly has flexible circuit board installed on injection-molded isolation plate, and connects aluminum bar through double-row voltage sampling connection point.

[0010] After FPC assembly is rotated 180° in horizontal direction, aluminum bar is connected through double-row voltage sampling connection point.

[0011] Further, the injection-molded isolation plate is rectangular or square.

[0012] Further, the aluminum bar is a single-piece aluminum bar or a double-piece aluminum bar.

[0013] Further, the two interface terminals are arranged at two ends of the FPC assembly and extend out of the injection-molded isolation plate in opposite horizontal directions.

[0014] Further, the edges of the mounting slots are provided with buckles for clamping the aluminum bar, and each mounting slot has two buckles arranged opposite on two different sides of the mounting slot.

[0015] Further, the flexible circuit board is riveted to the injection-molded isolation plate through the rivet column.

[0016] The utility model discloses a kind of general FPC and CCS components applied to power battery, and the following characteristics bring many-sided benefits:

[0017] 1. General design: the FPC assembly has double-row voltage sampling connection points, can correspond to connect an aluminum bar when being installed to injection-molded isolation plate, detects the voltage of battery.This design makes FPC have general property, can adapt to different installation needs.

[0018] 2. Flexible configuration: two positions of the interface terminal reserved on the FPC assembly, these two terminals are different pin of FPC assembly, can select different connection mode according to needs when installing, so that a general FPC has two different pin, increase the flexibility of application.

[0019] 3. Reduce mold use: general mold can be used to process general shape flexible circuit board, then according to actual demand adjustment voltage sampling connection point installation point, so reduce the demand to different mold.

[0020] 4. Reduce cost: because of reducing mold use and mold change time, directly reduce production cost.

[0021] 5. Easy to maintain: because of the flexibility of design, maintenance and replacement of failure part are more convenient.

[0022] 6. Enhance stability: the buckle design on injection-molded isolation plate can stabilize aluminum bar, prevent it from moving in use process, improve the reliability of overall structure.

[0023] 7. Improve safety: flexible circuit board is riveted to injection-molded isolation plate through rivet column, increase the stability of connection, so as to improve the safety of system.

[0024] 8. Simplify installation process: the design of 180 ° rotation makes installation process more simple, only need to rotate FPC assembly, can complete interface terminal exchange, need not complicated operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of Embodiment 1.

[0026] Figure 2 This is a schematic diagram of the structure of Example 2. Figure 1 .

[0027] Figure 3 This is a schematic diagram of the structure of Example 2. Figure 2 .

[0028] In the diagram: 1. FPC assembly; 11. Flexible circuit board; 13. Voltage sampling connection point; 14. First interface terminal; 15. Second interface terminal; 2. Injection molded isolation plate; 21. Mounting slot; 3. Aluminum bar; 4. Buckle; 5. Rivet post. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] Example 1;

[0031] like Figure 1 As shown, this embodiment discloses a universal FPC for use in power batteries, including an FPC assembly with dual rows of voltage sampling connection points and dual interface terminals; each voltage sampling connection point is connected to an aluminum bar on each side, and can be rotated 180° horizontally so that each voltage sampling connection point is connected to an aluminum bar on each side.

[0032] That is, the general-purpose FPC has two rows of voltage sampling connection points. When each voltage sampling connection point is installed on the injection molded isolation plate, it can be connected to an aluminum bar on it to detect the voltage at the location of the battery that needs to be detected. At the same time, two interface terminals are reserved on the FPC assembly. The dual interface terminals are different pins of the FPC assembly. When installed on the injection molded isolation plate, a general-purpose FPC can have two different pins.

[0033] Specifically, in order to realize the embodiment, the FPC assembly 1 comprises a ring-shaped flexible circuit board 11 having two long edges of the same length, and a plurality of voltage sampling connection points 13 are distributed on the long edges, and each voltage sampling connection point is connected with a voltage sampling connection point 13. It should be noted that the voltage sampling connection points need to be arranged corresponding to the positions of the aluminum bars, and at the same time, the horizontal direction rotation of 180° can also correspond to the positions of the aluminum bars. Therefore, the two interface terminals reserved on the FPC assembly are located at the two ends of the long edges, including the first interface terminal 14 and the second interface terminal 15. When the FPC assembly 1 is horizontally rotated by 180°, the positions of the first interface terminal 14 and the second interface terminal 15 are exchanged, but the connection between the voltage sampling connection points 13 and the aluminum bars is not affected. Such design has many benefits, such as reducing the use of molds for general FPCs, using a mold to process a general flexible circuit board, and then adjusting the installation positions of the voltage sampling connection points according to the requirements. At the same time, the general reduction of mold changing time directly reduces the cost.

[0034] Embodiment two;

[0035] As shown in Figure 2 , the embodiment discloses a CCS assembly, which comprises a general FPC on a power battery disclosed in embodiment one, and comprises:

[0036] The injection molded isolation plate 2 is provided with two rows of installation grooves 21 for installing aluminum bars in the length direction. In the embodiment, the injection molded isolation plate is rectangular, and in other embodiments, the injection molded isolation plate can be square. In theory, the shape of the two rows of installation grooves for installing aluminum bars can be installed.

[0037] A plurality of aluminum bars 3 are arranged one by one in the installation grooves 21. The shape of the aluminum bars is not limited, and can be a single aluminum bar or a double aluminum bar.

[0038] The FPC assembly 1 has a flexible circuit board 11 installed on the injection molded isolation plate 2, and connects the aluminum bars 3 through the double-row voltage sampling connection points 13.

[0039] The double interface terminals of the FPC assembly 1 are arranged at the two ends of the FPC assembly, respectively being the first interface terminal 14 and the second interface terminal 15, and extending out of the injection molded isolation plate 2 in the horizontal direction away from each other. As shown in Figure 3 , it is shown that the FPC assembly 1 connects the aluminum bars 3 through the double-row voltage sampling connection points after being horizontally rotated by 180°. Compared with Figure 2 , under the premise that the connection between the voltage sampling connection points 13 and the aluminum bars 3 is not affected, only the position of the FPC assembly 1 is changed, and the positions of the first interface terminal 14 and the second interface terminal 15 are exchanged.

[0040] Preferably, asFigure 2 As shown, in order to stabilize the aluminum bar, buckles 4 for clamping the aluminum bar are arranged on the edges of the mounting groove, and there are two buckles in each mounting groove, and the two buckles are arranged opposite on two different sides of the mounting groove. In order to stabilize the flexible circuit board, the flexible circuit board 11 is riveted to the injection molded isolation plate through the rivet column 5.

[0041] In summary, the utility model has brought many benefits through the following characteristics:

[0042] 1. General design: The FPC assembly has double-row voltage sampling connection points, which can correspond to connect an aluminum bar when installed on the injection molded isolation plate, detecting the voltage of the battery. This design makes the FPC have versatility and can adapt to different installation needs.

[0043] 2. Flexible configuration: The FPC assembly reserves two interface terminals, and these two terminals are different pin positions of the FPC assembly, which can be selected according to different connection methods during installation, so that a universal FPC has two different pin positions, increasing the flexibility of application.

[0044] 3. Reduce mold usage: A universal mold can be used to process a flexible circuit board with a universal shape, and then the installation point of the voltage sampling connection point can be adjusted according to actual needs, which reduces the need for different molds.

[0045] 4. Reduce costs: The use of molds and mold change time is reduced, directly reducing production costs.

[0046] 5. Easy to maintain: Due to the flexibility of the design, it is more convenient to maintain and replace faulty parts.

[0047] 6. Enhance stability: The buckle design on the injection molded isolation plate can stabilize the aluminum bar and prevent it from moving during use, improving the reliability of the overall structure.

[0048] 7. Improve safety: The flexible circuit board is riveted to the injection molded isolation plate through the rivet column, increasing the stability of the connection and improving the safety of the system.

[0049] 8. Simplify the installation process: The 180° rotation design makes the installation process simpler, and only needs to rotate the FPC assembly to complete the exchange of interface terminals without complex operations.

[0050] The above embodiments are not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or replacements made by technicians in the technical field within the technical solution range of the utility model also belong to the protection range of the utility model.

Claims

1. A general FPC applied to a power battery, characterized in that, The FPC assembly comprises double-row voltage sampling connection points and double-interface terminals; Each voltage sampling connection point is connected with an aluminum bar on each side and can be rotated by 180° in the horizontal direction to connect with an aluminum bar on each side.

2. A CCS assembly, characterized in that, The application of the general FPC on the power battery comprises the following steps: The injection-molded isolation plate is provided with left and right rows of installation grooves for installing aluminum bars in the length direction; A plurality of aluminum bars are arranged in the installation grooves one by one; The FPC assembly has a flexible circuit board installed on the injection-molded isolation plate and connects the aluminum bars through double-row voltage sampling connection points; The FPC assembly is rotated by 180° in the horizontal direction to connect the aluminum bars through double-row voltage sampling connection points.

3. The CCS assembly of claim 2, wherein, The injection-molded isolation plate is rectangular or square.

4. The CCS assembly of claim 3, wherein, The aluminum bar is a single-piece aluminum bar or a double-piece aluminum bar.

5. The CCS assembly of claim 2, wherein, The double-interface terminals are arranged at the two ends of the FPC assembly and extend out of the injection-molded isolation plate in the horizontal direction away from each other.

6. The CCS assembly of claim 2, wherein, The edge of the installation groove is provided with buckles for clamping the aluminum bar, and each installation groove has two buckles arranged opposite to each other on two different sides of the installation groove.

7. The CCS assembly of claim 2, wherein, The flexible circuit board is riveted to the injection-molded isolation plate through a rivet column.

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