New energy battery pack FFC wire convenient to weld
By designing multi-connection FFC lines and adopting an interlaced and windowed structure, the problem of insufficient flexibility of existing FFC wire harness connection ports is solved, achieving high-density connection and flexible soldering, adapting to complex wiring scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGSHI ELECTRONICS TECH CO LTD SUZHOU
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-15
AI Technical Summary
The existing FFC wire harness has low connection port flexibility and cannot meet diverse soldering requirements.
Design a multi-connection FFC line, which forms a comb-shaped structure by interleaving the first FFC line layer and the second FFC line layer, and sets an opening structure in the middle area to expose the external soldering end of the conductor, which is suitable for high-density connector interfaces.
It realizes the external welding end of multi-conductor, improves the flexibility and applicability of welding, adapts to complex wiring scenarios, breaks through the rigidity limitation of traditional wire harnesses, and meets the needs of high-density connection.
Smart Images
Figure CN224248986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of FFC harness technology, and more specifically, to an FFC wire for new energy battery packs that is easy to weld. Background Technology
[0002] In the power battery system of new energy vehicles, flexible flat cables (FFC) have become a key component for electrical connections between battery modules due to their high integration, thinness, and bendability.
[0003] The closest existing flexible flat cable harness to this application is disclosed in the patent announcement number CN110070960B, which discloses a flexible flat cable with a center distance of 0.3mm and its manufacturing method. The flexible flat cable includes a flexible flat cable body with multiple conductors evenly arranged inside and a reinforcing plate. The center distance between two adjacent conductors is 0.3mm, and the width of the conductor is 0.15-0.20mm and the thickness of the conductor is 0.025-0.050mm.
[0004] This flexible flat wire harness only has two connection ports, which have low port connection flexibility and cannot meet diverse welding needs.
[0005] In view of this, this utility model proposes a multi-connection-end, simple structure, and easy-to-weld FFC wire for new energy battery packs. Utility Model Content
[0006] In view of this, this utility model proposes a multi-connection-end, simple structure, and easy-to-weld FFC wire for new energy battery packs.
[0007] A new energy battery pack FFC line that is easy to weld includes a first FFC line layer 1 and a second FFC line layer 2, characterized in that:
[0008] Both the first FFC line layer 1 and the second FFC line layer 2 have conductive electrode teeth 3 formed at one end, and the conductive electrode teeth 3 of the two layers are staggered.
[0009] The first FFC line layer 1 and the second FFC line layer 2 are stacked alternately in an up-down manner. The conductive electrode teeth 3 of the two layers are staggered to form a comb-shaped structure 4 at one end. The comb-shaped structure 4 is adapted to the connector interface.
[0010] A window structure 5 is provided in the middle area of the first FFC line layer 1 and the second FFC line layer 2. The window structure 5 penetrates the insulation layer of the first FFC line layer 1 or the second FFC line layer 2, so that the first FFC line layer 1 and the second FFC line layer 2 expose at least one conductor external welding end of each layer. Each conductor external welding end is connected to an external new energy battery.
[0011] Furthermore, the original conductor spacing of each FFC layer in the first FFC layer 1 and the second FFC layer 2 is 2.0 mm.
[0012] Furthermore, the spacing of the conductive electrode teeth 3 of the first FFC line layer 1 and the second FFC line layer 2 is 1.0mm, making it compatible with a 1.0mm pitch connector interface.
[0013] In some embodiments, the conductive electrode teeth 3 at one end of the first FFC line layer 1 and the second FFC line layer 2 are both punched, and the conductive electrode teeth 3 of the two layers are staggered to form a comb-shaped structure 4.
[0014] In some embodiments, the window structure 5 is either a partial window 51 or a fully open window 52.
[0015] Furthermore, when it is a partial opening 51, a rectangular window 511 is opened on the first FFC line layer 1 or the second FFC line layer 2 to expose part of the conductor 512. Part of the conductor 512 is the external welding end. The rectangular window 511 exposes part of the conductor 512 and connects to the external new energy battery through the fuse assembly. Part of the conductor is reserved as a welding point and connected through the fuse assembly, which improves safety and maintainability.
[0016] In some embodiments, when the window 52 is fully open, at least one strip window 521 is opened on the first FFC layer 1 or the second FFC layer 2 and the conductor of one side of the first FFC layer 1 or the second FFC layer 2 is broken off, so that the conductor 522 on that side is the external welding end, which is connected to the external new energy battery. At the same time, the conductor of the other side of the first FFC layer 1 or the second FFC layer 2 can be bent according to the shape of the fully open window 52 and connected to the connector interface through the comb-shaped molding structure 4.
[0017] Furthermore, the conductors of the first FFC layer 1 or the second FFC layer 2 on the other side can be bent and twisted at any angle once or multiple times according to the shape of the fully open window 52, which facilitates angle bending as required. The conductors can be bent to adjust the angle, adapt to complex wiring scenarios, avoid the rigidity limitations of traditional wire harnesses, and the fully open window supports multi-angle bending of the conductors, allowing three-dimensional wiring according to the internal space of the battery pack, breaking through the limitations of traditional planar layout.
[0018] In some embodiments, a reinforcing plate layer 6 is provided on the back side of either the first FFC line layer 1 or the second FFC line layer 2. The reinforcing plate layer 6 extends to cover the area where the conductive electrode teeth 3 are staggered and avoids the area of the window structure 5 in the middle, so as to prevent the conductive electrode teeth 3 from deforming and at the same time avoid the window area to ensure the degree of freedom of welding.
[0019] Furthermore, the first FFC line layer 1, the second FFC line layer 2, and the reinforcing plate layer 6 are all connected by hot pressing.
[0020] The beneficial effects of this utility model are as follows: This utility model proposes an FFC wire for a new energy battery pack that is easy to weld, including a first FFC wire layer 1 and a second FFC wire layer 2. The first FFC wire layer 1 and the second FFC wire layer 2 are stacked alternately in an up-down manner, and the conductive electrode teeth 3 of the two layers are staggered to form a comb-shaped structure 4 at one end. The comb-shaped structure 4 is adapted to high-density connectors. The middle area of the first FFC wire layer 1 and the second FFC wire layer 2 is provided with a window structure 5. The window structure 5 penetrates the insulation layer of the first FFC wire layer 1 or the second FFC wire layer 2, so that the first FFC wire layer 1 and the second FFC wire layer 2 expose at least one external welding end of each conductor. Each external welding end of the conductor is connected to an external new energy battery, providing multiple external welding ends of conductors. While meeting the requirements of adapting to high-density connectors, the welding points can be flexibly adjusted according to specifications, further improving the applicability of the FFC wire. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of an FFC line for a new energy battery pack that is easy to weld, according to this application.
[0022] Figure 2 This is a schematic diagram of the structure of an FFC line for a new energy battery pack that is easy to weld, according to this application.
[0023] Figure 3 This is an exploded structural diagram of an FFC wire for a new energy battery pack that is easy to weld, according to this application.
[0024] Explanation of main component symbols
[0025] First FFC line layer 1, second FFC line layer 2, conductive electrode teeth 3, comb-shaped molding structure 4, window structure 5, partial window 51, rectangular window 511, partial conductor 512, fully open window 52, strip window 521, side conductor 522, reinforcing plate layer 6.
[0026] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation
[0027] The following embodiments are described to aid in understanding this application. These embodiments are not, and should not be, construed in any way as limiting the scope of protection of this application.
[0028] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as individual functional units (which may include subunits), but those skilled in the art will recognize that various components or portions thereof may be divided into individual components or may be integrated together (including integrated within a single system or component).
[0029] Furthermore, the connection between components or systems is not intended to be limited to a direct connection; on the contrary, data between these components may be modified, reformatted, or otherwise altered by intermediate components. Additionally, other or fewer connections may be used. It should also be noted that the terms "connection," "link," or "input" should be understood to include direct connections, indirect connections via one or more intermediate devices, and wireless connections.
[0030] Example 1:
[0031] like Figure 1 The diagram shown is a structural schematic of an FFC line for a new energy battery pack that is easy to weld, according to this application. Figure 2 The diagram shown is a structural schematic of an FFC line for a new energy battery pack that is easy to weld, according to this application. Figure 3 The diagram shown is an exploded structural schematic of an FFC wire for a new energy battery pack that is easy to weld, according to this application.
[0032] A new energy battery pack FFC line that is easy to weld includes a first FFC line layer 1 and a second FFC line layer 2, characterized in that:
[0033] Both the first FFC line layer 1 and the second FFC line layer 2 have conductive electrode teeth 3 formed at one end, and the conductive electrode teeth 3 of the two layers are staggered.
[0034] The first FFC line layer 1 and the second FFC line layer 2 are stacked alternately in an up-down manner. The conductive electrode teeth 3 of the two layers are staggered to form a comb-shaped structure 4 at one end. The comb-shaped structure 4 is adapted to the connector interface.
[0035] A window structure 5 is provided in the middle area of the first FFC line layer 1 and the second FFC line layer 2. The window structure 5 penetrates the insulation layer of the first FFC line layer 1 or the second FFC line layer 2, so that the first FFC line layer 1 and the second FFC line layer 2 expose at least one conductor external welding end of each layer. Each conductor external welding end is connected to an external new energy battery.
[0036] The original conductor spacing of each FFC layer in the first FFC layer 1 and the second FFC layer 2 is 2.0 mm.
[0037] The spacing of the conductive electrode teeth 3 of the first FFC layer 1 and the second FFC layer 2 is 1.0mm, making them compatible with 1.0mm pitch connector interfaces.
[0038] The conductive electrode teeth 3 at one end of the first FFC line layer 1 and the second FFC line layer 2 are both punched, and the conductive electrode teeth 3 of the two layers are staggered to form a comb-shaped structure 4.
[0039] The window structure 5 is either a partial window 51 or a fully open window 52.
[0040] When it is a partial opening 51, a rectangular window 511 is opened on the first FFC line layer 1 or the second FFC line layer 2 to expose part of the conductor 512. Part of the conductor 512 is the external welding end. The rectangular window 511 exposes part of the conductor 512 and connects to the external new energy battery through the fuse assembly. Part of the conductor is reserved as a welding point and connected through the fuse assembly to improve safety and maintainability.
[0041] When the window is fully open 52, at least one strip window 521 is opened on the first FFC line layer 1 or the second FFC line layer 2 and the conductor of the first FFC line layer 1 or the second FFC line layer 2 on one side is broken off, so that the conductor 522 on that side is the external welding end, which is connected to the external new energy battery. At the same time, the conductor of the first FFC line layer 1 or the second FFC line layer 2 on the other side can be bent according to the shape of the fully open window 52 and connected to the connector interface through the comb-shaped molding structure 4.
[0042] On the other side, the conductor of the first FFC layer 1 or the second FFC layer 2 can be bent and twisted at any angle once or multiple times according to the shape of the fully open window 52, which is convenient for angle bending according to requirements. The conductor can be bent to adjust the angle, adapt to complex wiring scenarios, avoid the rigidity limitation of traditional wire harnesses, and the fully open window supports multi-angle bending of the conductor, allowing three-dimensional wiring according to the internal space of the battery pack, breaking through the limitations of traditional planar layout.
[0043] The back side of either the first FFC line layer 1 or the second FFC line layer 2 is further provided with a reinforcing plate layer 6. The reinforcing plate layer 6 extends to cover the area where the conductive electrode teeth 3 are staggered and avoids the area of the window structure 5 in the middle, so as to prevent the conductive electrode teeth 3 from deforming and at the same time avoid the window area to ensure the degree of freedom of welding.
[0044] The first FFC line layer 1, the second FFC line layer 2, and the reinforcing plate layer 6 are all connected by hot pressing.
[0045] The beneficial effects of this utility model are as follows: This utility model proposes an FFC wire for a new energy battery pack that is easy to weld, including a first FFC wire layer 1 and a second FFC wire layer 2. The first FFC wire layer 1 and the second FFC wire layer 2 are stacked alternately in an up-down manner, and the conductive electrode teeth 3 of the two layers are staggered to form a comb-shaped structure 4 at one end. The comb-shaped structure 4 is adapted to high-density connectors. The middle area of the first FFC wire layer 1 and the second FFC wire layer 2 is provided with a window structure 5. The window structure 5 penetrates the insulation layer of the first FFC wire layer 1 or the second FFC wire layer 2, so that the first FFC wire layer 1 and the second FFC wire layer 2 expose at least one external welding end of each conductor. Each external welding end of the conductor is connected to an external new energy battery, providing multiple external welding ends of conductors. While meeting the requirements of adapting to high-density connectors, the welding points can be flexibly adjusted according to specifications, further improving the applicability of the FFC wire.
[0046] Although this application discloses several aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art. Various modifications and improvements can be made without departing from the concept of this application, and these all fall within the scope of protection of this application. The various aspects and embodiments disclosed in this application are for illustrative purposes only and are not intended to limit this application. The actual scope of protection of this application is determined by the claims.
Claims
1. A new energy battery pack FFC wire that is easy to weld, comprising a first FFC wire layer (1) and a second FFC wire layer (2), characterized in that: One end of the first FFC line layer (1) and the second FFC line layer (2) are both formed with conductive electrode teeth (3), and the conductive electrode teeth (3) of the two layers are staggered. The first FFC line layer (1) and the second FFC line layer (2) are stacked alternately in an up-down manner. The conductive electrode teeth (3) of the two layers are staggered to form a comb-shaped structure (4) at one end. The comb-shaped structure (4) is adapted to the connector interface. The middle area of the first FFC line layer (1) and the second FFC line layer (2) is provided with a window structure (5). The window structure (5) penetrates the insulation layer of the first FFC line layer (1) or the second FFC line layer (2), so that the first FFC line layer (1) and the second FFC line layer (2) expose at least one conductor external welding end of each layer. Each conductor external welding end is connected to an external new energy battery.
2. The easy-to-weld FFC wire for new energy battery packs as described in claim 1, characterized in that: The original conductor spacing of each FFC layer in the first FFC layer (1) and the second FFC layer (2) is 2.0 mm.
3. The easy-to-weld FFC wire for new energy battery packs as described in claim 2, characterized in that: The spacing of the conductive electrode teeth (3) of the first FFC line layer (1) and the second FFC line layer (2) is 1.0 mm, so that they can be adapted to the 1.0 mm pitch connector interface.
4. The easy-to-weld FFC wire for new energy battery packs as described in claim 1, characterized in that: The conductive electrode teeth (3) at one end of the first FFC line layer (1) and the second FFC line layer (2) are both punched. The conductive electrode teeth (3) of the two layers are staggered to form a comb-shaped structure (4).
5. The easy-to-weld FFC wire for new energy battery packs as described in claim 1, characterized in that: The window structure (5) is either a partial window (51) or a full window (52).
6. The easy-to-weld FFC wire for new energy battery packs as described in claim 5, characterized in that: When it is a partial window (51), a rectangular window (511) is opened on the first FFC line layer (1) or the second FFC line layer (2) to expose part of the conductor (512). The part of the conductor (512) is the external welding end. The rectangular window (511) exposes part of the conductor (512) and connects to the external new energy battery through the fuse assembly.
7. The easy-to-weld FFC wire for new energy battery packs as described in claim 5, characterized in that: When the window is fully open (52), at least one strip window (521) is opened on the first FFC line layer (1) or the second FFC line layer (2) and the conductor of the first FFC line layer (1) or the second FFC line layer (2) on one side is broken, so that the conductor (522) on that side is the external welding end, which is connected to the external new energy battery. At the same time, the conductor of the first FFC line layer (1) or the second FFC line layer (2) on the other side can be bent according to the shape of the fully open window (52) and connected to the connector interface through the comb-shaped molding structure (4).
8. The easy-to-weld FFC wire for new energy battery packs as described in claim 7, characterized in that: The conductors of the first FFC layer (1) or the second FFC layer (2) on the other side can be bent and twisted at any angle once or multiple times according to the shape of the fully open window (52), so as to facilitate angle bending as required.
9. The easy-to-weld FFC wire for new energy battery packs as described in claim 1, characterized in that: The back side of either the first FFC line layer (1) or the second FFC line layer (2) is further provided with a reinforcing plate layer (6), which extends to cover the area where the conductive electrode teeth (3) are staggered and avoids the area of the window structure (5) in the middle.
10. The easy-to-weld FFC wire for new energy battery packs as described in claim 9, characterized in that: The first FFC line layer (1), the second FFC line layer (2), and the reinforcing plate layer (6) are all connected by hot pressing.