FPC assembly and battery module

Abstract

The utility model provides a kind of FPC assembly and battery module.The FPC assembly includes: connecting component, along the length direction of connecting component, connecting component has relatively arranged first end and second end;Collection component is connected with collection terminal on collection component, and collection component includes extension collection part, superimposed collection part, extension bending part and superimposed bending part, extension collection part is connected by extension bending part with first end, superimposed collection part is connected by superimposed bending part with second end, extension bending part is bent and is arranged, connecting component and extension collection part are arranged along the length direction, superimposed bending part is bent and is arranged, superimposed collection part is superimposed on connecting component along the thickness direction of connecting component, to make superimposed collection part and extension collection part are arranged along the length direction.The technical scheme of the utility model solves the problem that FPC in the prior art needs larger installation space in width direction due to more collection points and is difficult to be applied to relatively narrow installation space.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to an FPC component and a battery module. Background Technology

[0002] Current technology, such as Figure 1 As shown, battery cells 5 are stacked together to form a battery module, with a single layer of FPC4 laid flat on the upper surface of the battery cells 5, and the FPC placed on top of the battery cells 5. When the arrangement of the battery cells 5 changes, or when the spacing between the tabs of the battery cells 5 is small, the installation space for the FPC4 is small, or due to limitations in the FPC4 manufacturing process, the length of the FPC4 is restricted. In order to ensure the number of sampling points, the width of the FPC4 needs to be increased. Therefore, the FPC4 needs a large installation space in the width direction, which makes it difficult to apply to narrow installation spaces, thus reducing the layout flexibility of the FPC4. Utility Model Content

[0003] The main objective of this invention is to provide an FPC component and a battery module to solve the problem that existing FPCs, due to their large number of sampling points, require a large installation space in the width direction and are therefore difficult to apply to relatively narrow installation spaces.

[0004] To achieve the above objectives, this utility model provides an FPC assembly, comprising: a connecting member having a first end and a second end disposed opposite to each other along the length direction of the connecting member; and a collection member having collection terminals connected to it, the collection member including an extended collection portion, a stacked collection portion, an extended bending portion, and a stacked bending portion, the extended collection portion being connected to the first end via the extended bending portion, the stacked collection portion being connected to the second end via the stacked bending portion, the extended bending portion being bent, the connecting member and the extended collection portion being arranged along the length direction, the stacked bending portion being bent, and the stacked collection portion being stacked on the connecting member along the thickness direction of the connecting member, so that the stacked collection portion and the extended collection portion are arranged along the length direction.

[0005] Furthermore, the extended bending section includes a first bending segment and a second bending segment connected to each other. The first bending segment is connected to the extended acquisition section, and the second bending segment is connected to the connecting member. The first bending segment is bent, and the second bending segment is bent. The bending direction of the first bending segment and the bending direction of the second bending segment are set at an angle.

[0006] Furthermore, the FPC assembly also includes a filler, and at least one of the first and second bends is a U-shaped bend, with the filler filling the U-shaped bend.

[0007] Furthermore, the extended acquisition section includes a first acquisition segment and a stepped segment. The two ends of the stepped segment are spaced apart in the thickness direction. One end of the stepped segment is connected to the first acquisition segment, and the other end of the stepped segment is connected to the first bending segment, so that multiple acquisition terminals are located in the same plane. Acquisition terminals are connected to the first acquisition segment.

[0008] Furthermore, the stacked acquisition section includes a second acquisition segment, and the stacked bending section includes a third bending segment for connecting the second acquisition segment and the second end. The third bending segment is bent. The second acquisition segment is stacked on one side of the connecting member in the thickness direction, and an acquisition terminal is connected to the second acquisition segment.

[0009] Furthermore, the stacked acquisition section also includes a connecting section and a third acquisition section connected to each other, and the stacked bending section also includes a fourth bending section. The fourth bending section is used to connect the connecting section and the second end. The fourth bending section is bent. The third acquisition section is stacked on one side of the connecting member in the thickness direction. At least part of the connecting section and the second acquisition section are arranged to overlap in the length direction. The second acquisition section, the third acquisition section and the extended acquisition section are arranged sequentially along the length direction. Acquisition terminals are connected to the third acquisition section.

[0010] Furthermore, in the width direction of the connecting member, the third and fourth bending segments are located on both sides of the connecting member, and in the thickness direction, the second and third acquisition segments are located on the same side or both sides of the connecting member.

[0011] Furthermore, the FPC assembly also includes a filler, and at least one of the third and fourth bends is a U-shaped bend, with the filler filling the U-shaped bend.

[0012] Furthermore, the acquisition component also includes a connecting part. Both the extended acquisition part and the stacked acquisition part are provided with connecting parts. The acquisition terminal is connected to the connecting part. Along the length direction, at least one side of the connecting part is provided with a deformable area.

[0013] Furthermore, along the length direction, the deformable area is provided with a notch and an opening spaced apart from the notch. The notch is recessed into the connecting part from the edge of the connecting part, and a tearable connecting area is formed between the notch and the opening.

[0014] According to another aspect of the present invention, the present invention provides a battery module, including a battery cell, a busbar and the aforementioned FPC assembly, wherein the busbar is connected to the terminal of the battery cell and the acquisition terminal is connected to the busbar.

[0015] By applying the technical solution of this utility model, the bending arrangement of the extended bending portion allows the connecting member and the extended acquisition portion to be arranged continuously in the length direction. The bending arrangement of the stacked bending portion allows the stacked acquisition portion to be stacked along the thickness direction of the connecting member, so that the stacked acquisition portion and the extended acquisition portion are arranged in the length direction. Even if the length of the FPC is limited by the process, the actual acquisition path length can be increased by bending, thereby increasing the number of acquisition points on a single FPC. This allows the FPC to integrate more acquisition points in a space with limited width, thereby improving space utilization. In this way, by combining the above technical features, not only is the limitation of FPC length overcome, but also a more efficient layout of acquisition points is achieved without increasing the width of the FPC. This ensures that the signal acquisition function of the battery management system can be guaranteed even in densely packed cells. Therefore, this application effectively solves the problem in the prior art that the FPC requires a large installation space in the width direction due to the large number of acquisition points, making it difficult to apply to relatively narrow installation spaces, thereby improving the layout flexibility of the FPC. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of a battery module in the prior art is shown;

[0018] Figure 2 A schematic diagram of an embodiment of the battery module of this utility model is shown;

[0019] Figure 3 It shows Figure 2 A schematic diagram of the structure of the FPC component of the battery module;

[0020] Figure 4 It shows Figure 2 A schematic diagram of the structure of the FPC component of the battery module after unfolding (before bending);

[0021] Figure 5 It shows Figure 2 A schematic diagram of the structure of the FPC component of the battery module;

[0022] Figure 6 It shows Figure 2 A schematic diagram of the structure of the FPC component of the battery module;

[0023] Figure 7 It shows Figure 2 A schematic diagram of the structure of the FPC component of the battery module.

[0024] The above figures include the following reference numerals:

[0025] 1. Battery cell; 2. Busbar; 3. FPC assembly; 10. Connecting component; 20. Acquisition terminal; 30. Extended acquisition section; 31. First acquisition segment; 32. Stepped segment; 40. Overlapping acquisition section; 41. Second acquisition segment; 42. Connecting segment; 43. Third acquisition segment; 50. Extended bending section; 51. First bending segment; 52. Second bending segment; 60. Overlapping bending section; 61. Third bending segment; 62. Fourth bending segment; 70. Filler; 80. Connecting part; 81. Notch; 82. Opening; 83. Connector; 84. Connection area; 85. Copper foil. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] like Figures 2 to 7 As shown, an embodiment of this utility model provides an FPC (Flexible Printed Circuit) assembly, including: a connecting member 10, which has a first end and a second end disposed opposite to each other along its length; and a collection member, on which a collection terminal 20 is connected, the collection member including an extended collection portion 30, a stacked collection portion 40, an extended bending portion 50, and a stacked bending portion 60, the extended collection portion 30 being connected to the first end via the extended bending portion 50, the stacked collection portion 40 being connected to the second end via the stacked bending portion 60, the extended bending portion 50 being bent, the connecting member 10 and the extended collection portion 30 being arranged along the length direction, the stacked bending portion 60 being bent, and the stacked collection portion 40 being stacked on the connecting member 10 along the thickness direction, so that the stacked collection portion 40 and the extended collection portion 30 are arranged along the length direction.

[0028] In the above technical solution, the bending arrangement of the extended bending portion 50 allows the connecting member 10 and the extended acquisition portion 30 to be arranged continuously in the length direction. The bending arrangement of the stacked bending portion 60 allows the stacked acquisition portion 40 to be stacked along the thickness direction of the connecting member 10, so that the stacked acquisition portion 40 and the extended acquisition portion 30 are arranged in the length direction. Even if the length of the FPC is limited by the process, the actual acquisition path length can be increased by bending, thereby increasing the number of acquisition points on a single FPC. This allows the FPC to integrate more acquisition points in a space with limited width, thereby improving space utilization. In this way, by combining the above technical features, not only is the limitation of FPC length overcome, but also a more efficient layout of acquisition points is achieved without increasing the width of the FPC. This ensures that even in a dense arrangement of cells 1, the signal acquisition function of the battery management system can be guaranteed. Therefore, this application effectively solves the problem in the prior art that the FPC, due to the large number of acquisition points, requires a large installation space in the width direction, making it difficult to apply to relatively narrow installation spaces, thereby improving the layout flexibility of the FPC.

[0029] like Figures 2 to 7 As shown in the embodiment of this utility model, the extended bending portion 50 includes a first bending segment 51 and a second bending segment 52 connected to each other. The first bending segment 51 is connected to the extended collection portion 30, and the second bending segment 52 is connected to the connecting member 10. The first bending segment 51 is bent, and the second bending segment 52 is bent. The bending direction of the first bending segment 51 and the bending direction of the second bending segment 52 are set at an angle.

[0030] In the above technical solution, both the first bending segment 51 and the second bending segment 52 are set in a bending manner, and the bending directions of the two form a certain angle. This unique bending structure not only makes effective use of space, but also solves the problem of FPC length limitation. By changing the bending path and direction of FPC, a longer signal acquisition path can be achieved within a limited width, which greatly improves the applicability and flexibility of FPC in compact battery modules.

[0031] like Figure 3 and Figure 5 As shown, the FPC is formed by bending a flat plate. Through the first bending section 51 and the second bending section 52, the axis L1 of the extended acquisition section 30 is bent to coincide with the axis L of the connecting member 10, so that the extended acquisition section 30 becomes the length direction of the FPC, thereby achieving an acquisition function with nearly twice the length with a shorter FPC length.

[0032] like Figures 2 to 7 As shown in the embodiment of this utility model, the FPC assembly further includes a filler 70, at least one of the first bending segment 51 and the second bending segment 52 is a U-shaped bending segment, and the filler 70 is filled in the U-shaped bending segment.

[0033] With the above settings, the bending section can be supported by the filler 70 to ensure sufficient bending gap, thereby preventing the internal copper foil 85 from being broken when the FPC is bent, and thus ensuring the stability and structural integrity of the FPC during the bending process.

[0034] like Figures 2 to 7 As shown in the embodiment of this utility model, the extended acquisition section 30 includes a first acquisition section 31 and a stepped section 32. The two ends of the stepped section 32 are spaced apart in the thickness direction. One end of the stepped section 32 is connected to the first acquisition section 31, and the other end of the stepped section 32 is connected to the first bending section 51, so that multiple acquisition terminals 20 are located in the same plane. Acquisition terminals 20 are connected to the first acquisition section 31.

[0035] In the above technical solution, by setting the stepped section 32, multiple acquisition terminals 20 can be positioned in the same plane. Even in a limited space, the FPC can effectively adapt to the arrangement of the battery cell 1, ensuring that the acquisition terminals 20 and the contact surface of the battery cell 1 are aligned, thereby optimizing the accuracy and stability of signal acquisition.

[0036] It should be noted that the aluminum busbar needs to be welded to the tabs of the battery cell. Since the tabs of the battery cell are flush, the aluminum busbar should also be flush. Because the FPC is bent through the first bending section 51 and the second bending section 52, the FPC is not flat, which causes the nickel sheets to be out of plane. To ensure that the FPC is flat, a stepped section 32 is set on the FPC to ensure that the nickel sheets are in a plane when installed on the FPC.

[0037] like Figures 2 to 7 As shown in the embodiment of this utility model, the stacked acquisition part 40 includes a second acquisition segment 41, and the stacked bending part 60 includes a third bending segment 61 for connecting the second acquisition segment 41 and the second end. The third bending segment 61 is bent. The second acquisition segment 41 is stacked on one side of the connecting member 10 in the thickness direction. Acquisition terminals 20 are connected to the second acquisition segment 41.

[0038] By using the above settings, the limited vertical space can be effectively utilized to increase the actual acquisition path length, thereby increasing the number of acquisition points on a single FPC. This allows the FPC to integrate more acquisition points within a space with limited width, thus improving space utilization.

[0039] like Figures 2 to 7As shown in the embodiment of this utility model, the stacked acquisition section 40 further includes a connecting section 42 and a third acquisition section 43 connected to each other, and the stacked bending section 60 further includes a fourth bending section 62. The fourth bending section 62 is used to connect the connecting section 42 and the second end. The fourth bending section 62 is bent. The third acquisition section 43 is stacked on one side of the connecting member 10 in the thickness direction. At least part of the connecting section 42 and the second acquisition section 41 are arranged to overlap in the length direction. The second acquisition section 41, the third acquisition section 43 and the extended acquisition section 30 are arranged sequentially along the length direction. The acquisition terminal 20 is connected to the third acquisition section 43.

[0040] In the above technical solution, by setting the connecting section 42, the third acquisition section 43, and the fourth bending section 62, the FPC component can expand its signal acquisition capability within a limited physical space. Particularly in the thickness direction, the third acquisition section 43 can be stacked on one side of the connecting member 10. This stacked layout optimizes the utilization of vertical space, enabling more signal acquisition points even in a compact battery module. Simultaneously, the sequential arrangement of the second acquisition section 41, the third acquisition section 43, and the extended acquisition section 30 along the length direction increases the actual acquisition path length, thereby increasing the number of acquisition points on a single FPC. This allows the FPC to integrate more acquisition points within a limited width, improving space utilization. Thus, it not only overcomes the limitation of FPC length but also achieves a more efficient layout of acquisition points without increasing the FPC width. Therefore, this application effectively solves the problem in the prior art where the FPC requires a large installation space in the width direction, making it difficult to apply to relatively narrow installation spaces, thereby improving the layout flexibility of the FPC.

[0041] In this application, the FPC is divided into three segments, and the number of collection points in each segment is determined by the width of the FPC. The three FPC segments are arranged sequentially along the length direction, which increases the actual collection path length.

[0042] In some embodiments, the FPC component 3 further includes a connector 83, which is connected to the third bend segment 61 and the fourth bend segment 62.

[0043] like Figure 4 and Figure 5 As shown, by using the third bending segment 61 and the fourth bending segment 62, the axis L2 of the second acquisition segment 41 and the axis L3 of the third acquisition segment 43 are bent to coincide with the axis L of the connecting member 10, so as to reduce the width of the FPC to no more than 1 / 3 of the original width, thus meeting the application requirements in scenarios with a small width space and a large number of acquisition points.

[0044] like Figures 2 to 7As shown in the embodiment of this utility model, in the width direction of the connecting member 10, the third bending segment 61 and the fourth bending segment 62 are respectively located on both sides of the connecting member 10, and in the thickness direction, the second acquisition segment 41 and the third acquisition segment 43 are located on the same side or both sides of the connecting member 10. This facilitates the stacking of the second acquisition segment 41 and the third acquisition segment 43 on the connecting member 10 in the thickness direction, thereby allowing the second acquisition segment 41 and the third acquisition segment 43 to be arranged along the length direction, thus increasing the actual acquisition path length.

[0045] like Figures 2 to 7 As shown in the embodiment of this utility model, the FPC assembly further includes a filler 70, and at least one of the third bending segment 61 and the fourth bending segment 62 is a U-shaped bending segment, with the filler 70 filling the U-shaped bending segment.

[0046] With the above settings, the bending section can be supported by the filler 70 to ensure sufficient bending gap, thereby preventing the internal copper foil 85 from being broken when the FPC is bent, and thus ensuring the stability and structural integrity of the FPC during the bending process.

[0047] like Figures 2 to 7 As shown in the embodiment of this utility model, the acquisition component further includes a connecting part 80. The extended acquisition part 30 and the stacked acquisition part 40 are both provided with connecting parts 80. The acquisition terminal 20 is connected to the connecting part 80. Along the length direction, at least one side of the connecting part 80 is provided with a deformable area.

[0048] In the above technical solution, by setting a deformable area on the connecting part 80, it is possible to effectively adapt to the expansion or contraction of the battery cell 1 inside the battery module, as well as the thermal expansion and contraction of the module as a whole. This dynamically compensates for the impact of changes in the battery cell 1, ensuring that the electrical connection between the signal acquisition point and the battery cell 1 remains stable and reliable in a dynamically changing environment, avoiding poor contact or circuit damage caused by mechanical stress. At the same time, it can reduce physical damage to the FPC material, thereby improving the lifespan and durability of the entire signal acquisition system.

[0049] In some embodiments, the connecting portion 80 includes a copper foil 85 and an insulating film covering the copper foil 85. The width of the copper foil 85 is at least 0.3 mm to 1.5 mm (the width direction of the copper foil 85 is perpendicular to the extension direction of the copper foil 85). Connecting portions 80 are provided on both sides of the connecting member 10 along the width direction. The gap between the copper foils 85 of two connecting portions 80 spaced apart in the width direction of the connecting member 10 is 0.3 mm to 1.5 mm to meet the requirements of insulation and pressure resistance.

[0050] like Figures 2 to 7As shown in the embodiment of this utility model, along the length direction, the deformable area is provided with a notch 81 and an opening 82 spaced apart from the notch 81. The notch 81 is recessed into the connecting part 80 from the edge of the connecting part 80, and a tearable connecting area 84 is formed between the notch 81 and the opening 82.

[0051] In the above technical solution, by setting the notch 81 and the opening 82, even when the battery cell 1 expands or contracts due to charging, discharging, temperature changes, etc., the connection area 84 can act as a stress-relieving buffer, effectively avoiding the risk of damage to the connection part 80 due to excessive stress, and ensuring the continuous stability of the electrical connection between the acquisition terminal 20 and the battery cell. This not only enhances the mechanical strength and durability of the signal acquisition component, but also significantly improves the safety and reliability of the battery module under various operating conditions.

[0052] In some embodiments, the notch 81, the opening 82, and the connection area 84 avoid the copper foil 85.

[0053] Since the aluminum busbar is welded to the tabs of the battery cell 1, and the nickel sheet is welded to the aluminum busbar, when the battery cell expands, the battery cell moves the aluminum busbar, and the aluminum busbar moves the nickel sheet. Therefore, at least one pair of notches 81 and openings 82 are provided on the connecting part 80. The positions of the notches 81 and openings 82 are corresponding, and a connecting area 84 is formed between them. When the battery cell 1 expands and moves the nickel sheet, it will tear the two connecting areas and the connecting area, forming a deformable area on the connecting part 80. The deformable area allows a certain displacement between the nickel sheet and the extended acquisition part 30, and between the nickel sheet and the stacked acquisition part 40, to ensure that the copper foil 85 of the FPC is not damaged and that the acquisition function is not damaged.

[0054] like Figure 7 As shown, considering cost and stability, FPCs generally use single-sided boards. In this case, the nickel sheets are soldered to the same side of the FPC. After bending, the nickel sheets will be distributed on the top and bottom sides of the FPC.

[0055] It should be noted that when there are many data collection points, the sections at the third bend 61 and the fourth bend 62 can be folded multiple times to meet the data collection requirements.

[0056] like Figure 2 As shown, an embodiment of this utility model provides a battery module, including a battery cell 1, a busbar 2 and the aforementioned FPC assembly 3. The busbar 2 is connected to the terminal post of the battery cell 1, and the acquisition terminal 20 is connected to the busbar 2.

[0057] In some embodiments, the busbar 2 is an aluminum busbar and the acquisition terminal 20 is a nickel plate.

[0058] The battery module described above has all the advantages of the FPC component 3 described above, which will not be repeated here.

[0059] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: the bending setting of the extended bending portion allows the connecting member and the extended acquisition portion to be arranged continuously in the length direction; the bending setting of the stacked bending portion allows the stacked acquisition portion to be stacked along the thickness direction of the connecting member, so that the stacked acquisition portion and the extended acquisition portion are arranged in the length direction. Even if the length of the FPC is limited by the process, the actual acquisition path length can be increased by bending, thereby increasing the number of acquisition points on a single FPC. This allows the FPC to integrate more acquisition points in a space with limited width, thereby improving space utilization. In this way, through the combined use of the above technical features, not only is the limitation of FPC length overcome, but also a more efficient layout of acquisition points is achieved without increasing the width of the FPC. This ensures that the signal acquisition function of the battery management system can be guaranteed even in densely packed cells. Therefore, this application effectively solves the problem in the prior art that the FPC, due to the large number of acquisition points, requires a large installation space in the width direction, making it difficult to apply to relatively narrow installation spaces, thereby improving the layout flexibility of the FPC.

[0060] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An FPC component, characterized in that, include: The connecting member (10) has a first end and a second end disposed opposite to each other along the length direction of the connecting member (10); A data acquisition component is provided, and a data acquisition terminal (20) is connected to the data acquisition component. The data acquisition component includes an extended data acquisition part (30), a stacked data acquisition part (40), an extended bending part (50), and a stacked bending part (60). The extended data acquisition part (30) is connected to the first end through the extended bending part (50), and the stacked data acquisition part (40) is connected to the second end through the stacked bending part (60). The extended bending part (50) is bent. The connecting member (10) and the extended data acquisition part (30) are arranged along the length direction. The stacked bending part (60) is bent. The stacked data acquisition part (40) is stacked on the connecting member (10) along the thickness direction, so that the stacked data acquisition part (40) and the extended data acquisition part (30) are arranged along the length direction.

2. The FPC component according to claim 1, characterized in that, The extended bending section (50) includes a first bending segment (51) and a second bending segment (52) connected to each other. The first bending segment (51) is connected to the extended collection section (30), and the second bending segment (52) is connected to the connecting member (10). The first bending segment (51) is bent, and the second bending segment (52) is bent. The bending direction of the first bending segment (51) and the bending direction of the second bending segment (52) are set at an angle.

3. The FPC component according to claim 2, characterized in that, The FPC assembly also includes a filler (70), at least one of the first bending segment (51) and the second bending segment (52) is a U-shaped bending segment, and the filler (70) fills the U-shaped bending segment.

4. The FPC component according to claim 2, characterized in that, The extended acquisition section (30) includes a first acquisition section (31) and a stepped section (32). The two ends of the stepped section (32) are spaced apart in the thickness direction. One end of the stepped section (32) is connected to the first acquisition section (31), and the other end of the stepped section (32) is connected to the first bending section (51) so that the multiple acquisition terminals (20) are located in the same plane. The acquisition terminals (20) are connected to the first acquisition section (31).

5. The FPC component according to claim 1, characterized in that, The stacked acquisition section (40) includes a second acquisition segment (41), and the stacked bending section (60) includes a third bending segment (61) for connecting the second acquisition segment (41) and the second end. The third bending segment (61) is bent. The second acquisition segment (41) is stacked on one side of the connecting member (10) in the thickness direction. The acquisition terminal (20) is connected to the second acquisition segment (41).

6. The FPC component according to claim 5, characterized in that, The stacked acquisition section (40) further includes a connecting section (42) and a third acquisition section (43) connected to each other. The stacked bending section (60) further includes a fourth bending section (62). The fourth bending section (62) is used to connect the connecting section (42) and the second end. The fourth bending section (62) is bent. The third acquisition section (43) is stacked on one side of the connecting member (10) in the thickness direction. At least part of the connecting section (42) and the second acquisition section (41) are arranged to overlap in the length direction. The second acquisition section (41), the third acquisition section (43) and the extended acquisition section (30) are arranged sequentially along the length direction. The acquisition terminal (20) is connected to the third acquisition section (43).

7. The FPC component according to claim 6, characterized in that, In the width direction of the connecting member (10), the third bending segment (61) and the fourth bending segment (62) are located on both sides of the connecting member (10), and in the thickness direction, the second acquisition segment (41) and the third acquisition segment (43) are located on the same side or both sides of the connecting member (10).

8. The FPC component according to claim 6, characterized in that, The FPC assembly also includes a filler (70), at least one of the third bend segment (61) and the fourth bend segment (62) is a U-shaped bend segment, and the filler (70) is filled within the U-shaped bend segment.

9. The FPC component according to any one of claims 1 to 8, characterized in that, The acquisition component also includes a connecting part (80), and the connecting part (80) is provided on both the extended acquisition part (30) and the stacked acquisition part (40). The acquisition terminal (20) is connected to the connecting part (80), and a deformable area is provided on at least one side of the connecting part (80) along the length direction.

10. The FPC component according to claim 9, characterized in that, Along the length direction, the deformable region is provided with a notch (81) and an opening (82) spaced apart from the notch (81). The notch (81) is recessed into the connecting part (80) from the edge of the connecting part (80). A tearable connecting area (84) is formed between the notch (81) and the opening (82).

11. A battery module, characterized in that, The device includes a battery cell (1), a busbar (2), and an FPC assembly (3) according to any one of claims 1 to 10, wherein the busbar (2) is connected to the terminal of the battery cell (1), and the acquisition terminal (20) is connected to the busbar (2).

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