FPC light weight wire harness for automobile

Abstract

This application discloses a lightweight FPC wiring harness for automobiles, relating to the technical field of wiring harnesses. The FPC wiring harness includes an FPC main wire and FPC sub-wires. An electronic shielding film is disposed on the surface of the FPC main wire. Multiple connectors are disposed on the FPC main wire, and the FPC sub-wires are connected to the connectors. Each connector has a fixing part, and the FPC main wire and the FPC sub-wires are respectively connected and fixed to the connector through the fixing part. This application can reduce the weight of automotive wiring harnesses.

Description

Technical Field

[0001] This application relates to the technical field of wiring harnesses, and in particular to a lightweight FPC wiring harness for automotive applications. Background Technology

[0002] As the automotive industry has developed, its electrification and intelligence have deepened, making the electrical systems inside vehicles increasingly complex. As the "neural network" of a car, automotive wiring harnesses play an indispensable role in power transmission and signal transmission, and their performance and layout have a crucial impact on the overall performance, safety, and comfort of the vehicle. With the continuous increase in automotive functions and the dramatic rise in the number of electrical components, the automotive wiring harness system has become increasingly critical in the overall automotive architecture, and its development has become a significant factor driving automotive technological progress.

[0003] Traditional automotive wiring harnesses typically consist of copper wires, insulation layers, sheathing, and connecting terminals. They are usually made using single or multiple copper wires, which are cut, crimped with terminals, and then wrapped, tape-wrapped, or protected with tubing. Inside a car, traditional wiring harnesses are widely used to connect electrical components such as power supplies, various control units, sensors, actuators, and in-vehicle entertainment systems, forming a complex electrical connection network that permeates every corner of the vehicle. They often employ a "multi-branch tree" structure with a main wiring harness and numerous branch harnesses.

[0004] However, traditional automotive wiring harnesses have significant drawbacks. With the increasing electrification and intelligence of automobiles, the number of electrical components has grown, making traditional wiring harness systems increasingly complex. Their "multi-branch tree-like" structure results in numerous branch nodes, significant overall weight, and a large footprint within the vehicle. Furthermore, the weight of traditional automotive wiring harness assemblies increases vehicle weight, impacting energy consumption and range. Their large size also poses challenges to overall vehicle layout, making installation inconvenient and severely restricting the optimization of automotive design and the improvement of production efficiency. Summary of the Invention

[0005] To reduce the weight of automotive wiring harnesses, this application provides a lightweight FPC wiring harness for automobiles.

[0006] This application provides a lightweight FPC wiring harness for automotive applications, employing the following technical solution:

[0007] A lightweight FPC wiring harness for automobiles includes an FPC wiring harness, wherein the FPC wiring harness includes an FPC main wire and an FPC sub wire, and an electronic shielding film is disposed on the surface of the FPC main wire.

[0008] There are multiple connectors, each disposed on the FPC main line, and the FPC sub-line is connected to the connector;

[0009] The connector is provided with a fixing part, and the FPC main line and the FPC sub-line are respectively connected and fixed to the connector through the fixing part.

[0010] By adopting the above technical solutions, replacing traditional automotive wiring harnesses with FPC wiring harnesses can achieve significant weight reduction, reduce vehicle weight, reduce energy consumption and range impact, and occupy less space, which is convenient for vehicle layout; the electronic shielding film can shield electronic interference; multiple connectors are respectively set on the FPC main line and connected to the FPC sub-lines, and are fixed by fixing parts to ensure the stability and reliability of the connection.

[0011] Optionally, the electronic shielding film has a scratch-resistant velour tape layer on the side facing away from the FPC wiring harness.

[0012] By adopting the above technical solution, an anti-scratch velvet tape layer is set on the side of the electronic shielding film facing away from the FPC wire harness, which can reduce the possibility of the electronic shielding film being scratched, protect the electronic shielding film, and thus ensure the shielding effect of the electronic shielding film.

[0013] Optionally, the FPC harness includes a bending area, and the anti-scratch velour tape layer is provided with a buffer foam layer located in the bending area on the side of the FPC harness facing away from it.

[0014] By adopting the above technical solution, a buffer foam layer is set in the bending area of ​​the FPC wire harness, which can further reduce the impact force on the wire harness when bending, enhance the protection of the FPC wire harness, reduce the risk of damage caused by bending, and extend the service life of the wire harness.

[0015] Optionally, the connector includes a body, a connecting post, and a connecting base, and the FPC harness is connected to the body;

[0016] The connecting column is disposed on the vehicle body, the connecting seat has a connecting groove for the connecting column to be inserted, the connecting seat is provided with a fixing component, and the connecting column and the connecting seat are connected and fixed by the fixing component;

[0017] Support columns are provided at the four corners of the edge of the connecting seat facing away from the connecting groove. A snap-fit ​​block is provided on the side wall of the support column away from the connecting seat. A snap-fit ​​groove is provided on the side wall of the main body for the snap-fit ​​block to snap into, and the snap-fit ​​blocks are snapped into one-to-one corresponding slots.

[0018] By adopting the above technical solutions, the connection between the FPC wiring harness and the vehicle body is made more stable and the assembly process is more convenient, which improves the installation efficiency of lightweight FPC wiring harnesses for automobiles and enhances the stability of the wiring harness during vehicle operation.

[0019] Optionally, the fixing component includes fixing teeth and connecting teeth;

[0020] The fixing tooth is disposed on the side wall of the connecting square column, and the connecting seat has a sliding groove that communicates with the connecting groove and allows the fixing tooth to slide.

[0021] The connecting teeth are multiple and disposed in the connecting seat. The connecting teeth are located in the sliding groove. When the connecting column is inserted into the connecting groove, the fixing tooth slides on the connecting teeth. When the connecting column slides out of the connecting groove, the connecting teeth support the fixing tooth.

[0022] By adopting the above technical solution, a stable connection can be achieved between the connecting post and the connecting seat, preventing the connecting post from easily coming out of the connecting slot, ensuring the reliability of the connection between the connector and the vehicle body, and thus improving the overall stability of the connection of the automotive FPC lightweight wiring harness.

[0023] Optionally, the connecting seat is rotatably connected to a connecting cylinder, and the connecting groove is formed in the connecting cylinder;

[0024] A connecting gear is provided on the outer periphery of the connecting cylinder, and the connecting gear rotates within the connecting seat;

[0025] A limiting block is provided inside the connecting seat, and the limiting block meshes with the connecting gear;

[0026] The connecting seat has a sliding actuating block on its side wall, and the connecting seat has a control component. When the actuating block slides away from the main body, the control component controls the actuating block to move away from the connecting gear.

[0027] When the actuating block slides close to the main body, the control component controls the actuating block to engage with the connecting gear.

[0028] By adopting the above technical solution, the rotation of the connecting cylinder relative to the connecting seat is controlled, and the position of the connecting seat can be flexibly adjusted so that the FPC harness can adapt to different installation and wiring requirements. At the same time, the rotation of the connecting cylinder can be restricted when needed to ensure the stability of the connection.

[0029] Optionally, the control component includes a control ring plate and a control block;

[0030] The control ring plate slides up and down within the connecting seat, with the arc-shaped concave side of the control ring plate facing the connecting gear, and the actuating block connected to the arc-shaped convex side of the control ring plate.

[0031] The control ring plate has a control groove extending along a spiral trajectory on its arc-shaped concave side. The control block slides in the control groove, and the limiting block is connected to the control block.

[0032] By adopting the above technical solution, when the control ring plate slides up and down, the control block slides in the groove using the spiral trajectory of the control groove, thereby driving the limiting block to move, realizing the engagement and disengagement control of the connecting gear. This allows for precise control of the rotation and stationary state of the connecting gear when the actuating block slides, improving the controllability and stability of the connector connection and disengagement operations.

[0033] Optionally, the connecting seat is provided with a sliding groove for the sliding block, and the connecting seat is provided with a drive spring located in the sliding groove, the drive spring driving the sliding block to move closer to the main body.

[0034] By adopting the above technical solution, the drive spring can automatically drive the actuating block to approach the main body, so that the actuating block and the connecting gear can quickly and accurately mesh, ensuring the stability and reliability of the connection between the connecting seat and the connecting column, and eliminating the need for frequent manual operation, thus improving the efficiency of wire harness installation and connection.

[0035] In summary, this application includes at least one of the following beneficial effects:

[0036] 1. The FPC lightweight wiring harness replaces the traditional multi-branch wiring harness structure, achieving a significant weight reduction goal, reducing vehicle weight, lowering energy consumption and improving range;

[0037] 2. Using FPC wire harnesses is simpler than traditional wire harness structures, reduces branch nodes, lowers assembly difficulty, improves assembly efficiency, and reduces costs. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0039] Figure 2 yes Figure 1 Enlarged schematic diagram of part A;

[0040] Figure 3 This is a schematic diagram of the external structure of Embodiment 2 of this application;

[0041] Figure 4 This is a schematic diagram of the internal cross-section of Embodiment 2 of this application;

[0042] Figure 5 yes Figure 4 Enlarged schematic diagram of part B;

[0043] Figure 6 This is a schematic diagram of the connection structure between the connector and the main body in Embodiment 2 of this application;

[0044] Figure 7 This is a schematic diagram of the internal structure of the connector in Embodiment 2 of this application;

[0045] Figure 8This is a schematic diagram of the connection structure between the control ring plate and the limiting block in Embodiment 2 of this application.

[0046] Reference numerals: 1. FPC harness; 11. FPC main line; 12. FPC sub-line; 13. Electronic shielding film; 14. Anti-scratch velvet tape layer; 15. Bending area; 16. Buffer foam layer; 2. Connector; 21. Fixing part; 3. Main body; 31. Slot; 4. Connecting square post; 5. Connecting seat; 51. Connecting groove; 52. Support column; 53. Snap-fit ​​block; 54. Slide groove; 55. Limiting block; 56. Actuating block; 57. Actuating groove; 58. Drive spring; 6. Fixing assembly; 61. Fixing tooth; 62. Connecting tooth; 7. Connecting cylinder; 71. Connecting gear; 8. Control assembly; 81. Control ring plate; 811. Control groove; 82. Control block. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0048] This application discloses a lightweight FPC wiring harness for automobiles.

[0049] See Figure 1 and Figure 2 This application mainly uses FPC wire harness 1 with connector 2 to achieve lightweighting of automotive wire harness, thereby reducing the weight of automotive wire harness, optimizing layout, and improving assembly efficiency. The following is a further detailed description of this application.

[0050] Example 1

[0051] See Figure 1 and Figure 2 The lightweight FPC wiring harness for automobiles provided in this application includes an FPC wiring harness 1 and connectors 2. The FPC wiring harness 1 includes an FPC main line 11 and FPC sub-lines 12, with terminals connected to the ends of the FPC main line 11 and FPC sub-lines 12. An electronic shielding film 13 is provided on the surface of the FPC main line 11. Multiple connectors 2 are respectively disposed on the FPC main line 11, and the FPC sub-lines 12 are connected to the connectors 2. Each connector 2 has a fixing part 21, which is an adhesive block. Adhesive blocks are formed at the connection points between the FPC main line 11 and the FPC sub-lines 12 and the connectors 2 through dispensing, thus achieving a connection and fixation between the FPC main line 11 and the FPC sub-lines 12 and the connectors 2. This effectively replaces the traditional multi-branch wiring harness structure, achieving the effect of lightweighting the automotive wiring harness. This is because the FPC wiring harness 1 itself is thin and light, the electronic shielding film 13 reduces electromagnetic interference and ensures stable signal transmission, and the multiple connectors 2 facilitate the connection of the FPC sub-lines 12, optimizing the wiring harness layout and reducing the weight and space occupied by the wiring harness.

[0052] Specifically, the FPC harness 1 is a flexible printed circuit board harness, consisting of an insulating substrate and conductive lines. The insulating substrate is typically made of flexible materials such as polyimide, which has good flexibility and bending resistance; alternative materials include polyester film. The conductive lines are generally manufactured using processes such as copper foil etching. Copper foil has good conductivity; alternative materials include aluminum foil, but aluminum foil has relatively weak conductivity. An electronic shielding film 13 is applied to the surface of the FPC main line 11. The electronic shielding film 13 is generally composed of a metal foil and an insulating layer. The metal foil can be copper or aluminum foil, effectively shielding electromagnetic interference. An insulating layer, typically made of materials such as polyester film, covers the outside of the metal foil, limiting short circuits between the metal foil and other components. The electronic shielding film 13 is fixed to the surface of the FPC main line 11 by adhesive or other methods, ensuring a firm bond and effective shielding.

[0053] The electronic shielding film 13 has a scratch-resistant velour tape layer 14 on the side facing away from the FPC harness 1. The scratch-resistant velour tape layer 14 is generally composed of velour and an adhesive layer. The velour is soft and effectively reduces the possibility of the electronic shielding film 13 being scratched. The adhesive layer is used to adhere the velour tape layer to the electronic shielding film 13. Alternative materials include sponge tape, which also provides some cushioning and scratch resistance.

[0054] The FPC harness 1 includes a bending area 15. A scratch-resistant velour tape layer 14 is adhered and fixed to the side of the FPC harness 1 facing away from the bending area 15, where a cushioning foam layer 16 is located. The cushioning foam layer 16 is generally made of materials such as polyurethane foam, which has good cushioning performance and can effectively absorb the stress in the bending area 15, reducing the possibility of damage to the bending area 15 of the FPC harness 1 during bending. Alternative materials include rubber foam, which also has a certain cushioning effect.

[0055] The implementation principle of a lightweight FPC wiring harness for automobiles in Embodiment 1 of this application is as follows:

[0056] This embodiment effectively reduces the weight of the automotive wiring harness and its footprint in the vehicle by using an FPC wiring harness 1 instead of the traditional multi-branch wiring harness structure. The electronic shielding film 13 ensures the stability of signal transmission and reduces electromagnetic interference. The design of multiple connectors 2 facilitates the connection of FPC sub-wires 12, optimizes the wiring harness layout, and improves assembly efficiency. The anti-scratch velour tape layer 14 further protects the electronic shielding film 13, reducing the possibility of the FPC wiring harness 1 being scratched and damaged during automotive assembly and use, extending the service life of the electronic shielding film 13, thereby ensuring the stability and reliability of the wiring harness. At the same time, the buffer foam layer 16 acts as a buffer in the bending area 15 of the FPC wiring harness 1, reducing damage to the FPC wiring harness 1 during bending, improving the bending resistance of the FPC wiring harness 1, and extending its service life.

[0057] Example 2

[0058] See Figure 3 and Figure 4 The difference between this embodiment 2 and embodiment 1 is that the connector 2 includes a body 3, a connecting post 4, and a connector seat 5. The body 3 is typically made of insulating materials such as plastic, possessing certain strength and insulation properties. Replaceable materials include nylon. The body 3 is connected to the FPC harness 1 via SMT surface mount technology or laser welding. The connecting post 4 is fixedly connected to the vehicle body and is generally made of metal materials, such as stainless steel, possessing high strength and corrosion resistance. The connector seat 5 has a connecting groove 51 for the connecting post 4 to be inserted. The connector seat 5 is also typically made of insulating materials such as plastic.

[0059] See Figure 4 and Figure 5 The connecting seat 5 is equipped with a fixing component 6, which connects and fixes the connecting column 4 to the connecting seat 5, ensuring the stability of the connection. The fixing component 6 includes fixing teeth 61 and connecting teeth 62. The fixing teeth 61 are fixedly connected to the vertical side wall of the connecting column 4 and are generally integrally formed with the connecting column 4, and are made of metal. The connecting seat 5 has a sliding groove 54 that communicates with the connecting groove 51 and allows the fixing teeth 61 to slide. The size of the sliding groove 54 is adapted to the fixing teeth 61 to ensure that the fixing teeth 61 can slide smoothly in the sliding groove 54 when the connecting column 4 is inserted into the connecting groove 51. There are multiple connecting teeth 62, which are fixed to the groove wall of the sliding groove 54 away from the connecting groove 51 along the extension direction of the sliding groove 54. When the connecting column 4 is inserted into the connecting groove 51, the fixing tooth 61 is slidably connected to the connecting tooth 62; when the connecting seat 5 is subjected to force that causes the connecting column 4 to tend to slide out of the connecting groove 51, the connecting tooth 62 supports the fixing tooth 61, restricting the connecting column 4 from disengaging from the connecting groove 51, thus ensuring the reliability of the connection.

[0060] See Figure 5 and Figure 6Support columns 52 are fixedly connected to the four corners of the edge of the connecting seat 5 facing away from the connecting groove 51. The support columns 52 are generally integrally formed with the connecting seat 5 and are made of materials with elastic deformation capabilities, such as plastic. A snap-fit ​​block 53 is fixedly connected to the side wall of the support column 52 away from the connecting seat 5. The snap-fit ​​block 53 can be an elastic plastic block with a certain degree of elastic deformation capability. A corresponding snap-fit ​​groove 31 is provided on the top of the main body 3 for the snap-fit ​​blocks 53 to snap into. The side of the snap-fit ​​block 53 away from the connecting seat 5 has an inclined snap-fit ​​surface. When the connecting seat 5 is connected to the main body 3, the main body 3 slides on the snap-fit ​​surface, causing the snap-fit ​​block 53 to bend the support column 52 away from the main body 3 until the snap-fit ​​block 53 and the snap-fit ​​groove 31 are aligned. At this point, the elastic deformation of the support column 52 returns to normal, causing the snap-fit ​​block 53 to snap into the snap-fit ​​groove 31, thus achieving a fixed connection between the two.

[0061] See Figure 5 and Figure 7 Specifically, the connecting seat 5 is rotatably connected to the connecting cylinder 7, and a connecting groove 51 is formed in the connecting cylinder 7. A connecting gear 71 is fixedly connected to the outer periphery of the connecting cylinder 7. The connecting gear 71 rotates within the connecting seat 5. The connecting gear 71 and the connecting cylinder 7 are generally integrally formed and made of materials such as plastic or metal. A limiting block 55 is provided inside the connecting seat 5. The limiting block 55 meshes with the connecting gear 71. The limiting block 55 can be a plastic block or a metal block. By meshing with the connecting gear 71, it limits the rotation of the connecting cylinder 7. A vertically extending actuating groove 57 is provided on one vertical side wall of the connecting seat 5. The connecting seat 5 is provided with an actuating block 56 that slides up and down in the actuating groove 57. The actuating block 56 is usually made of materials such as plastic for easy manual operation by the operator. The connecting seat 5 is equipped with a control component 8. When the actuating block 56 slides away from the main body 3, the control component 8 controls the actuating block 56 to move away from the connecting gear 71; when the actuating block 56 slides closer to the main body 3, the control component 8 controls the actuating block 56 to mesh with the connecting gear 71, thereby controlling the rotation of the connecting cylinder 7.

[0062] See Figure 5 Specifically, the control component 8 includes a control ring plate 81 and a control block 82. The control ring plate 81 slides up and down within the connecting seat 5, with the arc-shaped concave side of the control ring plate 81 facing the connecting gear 71, and the actuating block 56 is fixedly connected to the arc-shaped convex side of the control ring plate 81.

[0063] See Figure 8 The control ring plate 81 has a control groove 811 on its arc-shaped concave side, and the control groove 811 extends along a spiral trajectory.

[0064] See Figure 5The control block 82 slides within the control slot 811, and the limiting block 55 is fixedly connected to the control block 82. When the toggle block 56 slides upward, it drives the control ring plate 81 to slide upward, causing the limiting block 55 to move away from the connecting gear 71. At this time, the connecting seat 5 and the connecting square post 4 can rotate relative to each other. The orientation of the connecting seat 5 can be adjusted to facilitate the adjustment of the wiring trajectory of the FPC main line 11. When the connecting seat 5 is adjusted, the toggle block 56 is pushed down, causing the control ring plate 81 to slide down. At this time, when the tooth gaps of the limiting block 55 and the connecting gear 71 are aligned, the limiting block 55 and the connecting gear 71 mesh, making the connecting seat 5 fixed. When the tooth gaps of the limiting block 55 and the connecting gear 71 are misaligned, during the downward sliding of the control ring plate 81, the connecting gear 71 pushes the limiting block 55 to slide in the control groove 811. At this time, the tooth gaps of the control block 82 and the connecting gear 62 are gradually aligned until the tooth gaps of the control block 82 and the connecting gear 62 are aligned. Then the control block 82 stops sliding in the slide groove 54, and the control ring plate 81 drives the control block 82 to mesh with the connecting gear 71.

[0065] The connecting seat 5 is equipped with a drive spring 58, which is located within the actuating groove 57. One end of the drive spring 58 abuts against the side of the actuating block 56 facing away from the main body 3, and the other end abuts against the groove wall of the actuating groove 57. When the drive spring 58 is released elastically, it drives the actuating block 56 closer to the main body 3. The drive spring 58 is generally a metal spring, which has a certain elasticity and restoring force to ensure that the actuating block 56 can maintain its meshing state with the connecting gear 71 when no external force is applied.

[0066] The implementation principle of a lightweight FPC wiring harness for automobiles according to Embodiment 2 of this application is as follows:

[0067] The mounting component 6 and the control component 8 ensure the stability and reliability of the connection between the connector 2 and the vehicle body and the main body 3, facilitating the installation and removal of the wiring harness. Compared with traditional automotive wiring harnesses, the lightweight FPC wiring harness for automobiles in this embodiment has significant improvements in weight, layout, and assembly efficiency, providing strong support for optimizing automotive design and improving production efficiency.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An FPC lightening wire harness for an automobile, characterized by: The utility model provides a kind of FPC wire harness (1), the FPC wire harness (1) includes FPC main line (11) and FPC sub-line (12), the FPC main line (11) surface is provided with electronic shielding film (13); Connector (2) is multiple and is respectively arranged on the FPC main line (11), and the FPC sub-line (12) is connected to the connector (2); The connector (2) is provided with a fixing part (21), and the FPC main line (11) and the FPC sub-line (12) are respectively connected and fixed with the connector (2) by the fixing part (21); The connector (2) includes a main body (3), a connecting square column (4) and a connecting seat (5), and the FPC wire harness (1) is connected to the main body (3); The connecting square column (4) is arranged on the vehicle body, the connecting seat (5) is provided with a connecting slot (51) for inserting the connecting square column (4), and the connecting seat (5) is provided with a fixing assembly (6), and the connecting square column (4) and the connecting seat (5) are connected and fixed by the fixing assembly (6); The connecting seat (5) is provided with a supporting column (52) at the edge of the four corners on the side away from the connecting slot (51), the side wall of the supporting column (52) is provided with a clamping block (53) away from the connecting seat (5), and the side wall of the main body (3) is provided with a clamping groove (31) for clamping the clamping block (53) and corresponding one by one; The fixing assembly (6) includes a fixing tooth (61) and a connecting tooth (62); The fixing tooth (61) is arranged on the side wall of the connecting square column (4), and the connecting seat (5) is provided with a sliding groove (54) communicated with the connecting slot (51) and sliding with the fixing tooth (61); The connecting tooth (62) is multiple and arranged on the connecting seat (5), and the connecting tooth (62) is located in the sliding groove (54), when the connecting square column (4) is inserted into the connecting slot (51), the fixing tooth (61) slides on the connecting tooth (62), and when the connecting square column (4) slides out of the connecting slot (51), the connecting tooth (62) supports the fixing tooth (61); The connecting seat (5) is rotatably connected with a connecting cylinder (7), and the connecting slot (51) is formed in the connecting cylinder (7); The connecting cylinder (7) is provided with a connecting gear (71) on the outer circumferential side, and the connecting gear (71) rotates in the connecting seat (5); The connecting seat (5) is provided with a limiting block (55), and the limiting block (55) is engaged with the connecting gear (71); The connecting seat (5) is provided with a control assembly (8), and when the driving block (56) slides away from the main body (3), the control assembly (8) controls the driving block (56) to move away from the connecting gear (71); When the driving block (56) slides close to the main body (3), the control assembly (8) controls the driving block (56) to engage with the connecting gear (71). The control assembly (8) comprises a control ring plate (81) and a control block (82); The control ring plate (81) slides in the connecting seat (5), the arc concave side of the control ring plate (81) faces the connecting gear (71), and the poking block (56) is connected to the arc convex side of the control ring plate (81); The arc concave side of the control ring plate (81) is provided with a control groove (811) extending along a spiral track, the control block (82) slides in the control groove (811), and the limiting block (55) is connected to the control block (82).

2. The FPC light-weight wire harness for an automobile according to claim 1, characterized by: The side, away from the FPC wire harness (1), of the electronic shielding film (13) is provided with a scratch-proof flannelette adhesive tape layer (14).

3. The FPC light-weight wire harness for an automobile according to claim 2, characterized by: The FPC wire harness (1) comprises a bending area (15), and the side, away from the FPC wire harness (1), of the scratch-proof flannelette adhesive tape layer (14) is provided with a buffer foam layer (16) located in the bending area (15).

4. The FPC light-weight wire harness for an automobile according to claim 1, characterized by: The connecting seat (5) is provided with a poking groove (57) for the sliding of the poking block (56), the connecting seat (5) is provided with a driving spring (58) located in the poking groove (57), and the driving spring (58) drives the poking block (56) to be close to the main body (3).

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