Shielding structure, cable and electronic product
Through the combination of polyimide film layer, conductive cloth layer and acrylic adhesive layer, a shielding structure with a thickness of ≤0.04mm is formed, which solves the problem that traditional cables cannot withstand high rotation friction in laptops, and achieves high shielding and wear resistance, meeting the lightweight and thinning needs of electronic products.
Patent Information
- Application Number
- CN202510771986.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-10
- Publication Date
- 2025-08-26
AI Technical Summary
The shielding material on traditional cables cannot withstand the high rotational friction of laptops, and increasing thickness will affect the thinning and high shielding requirements of electronic products.
The combined structure of polyimide film layer, conductive cloth layer and acrylic glue layer is adopted, with a thickness of ≤0.04mm. By bonding the acrylic glue layer, the conductive cloth layer overlaps the conductive glue layer to form a shielding structure with good wear resistance and flexibility, which is suitable for cables of electronic products.
Without increasing the thickness, the shielding structure can withstand 500,000 rotational friction without damage or layering, maintain high shielding and conductivity, and meet the needs of thinning and high shielding of electronic products.
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Figure CN120545016A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of shielding materials, and in particular to a shielding structure, a cable and an electronic product. Background Art
[0002] A laptop's motherboard and screen are connected via a connector, which houses a high-speed transmission cable. The cable's outer layer is coated with shielding material to provide enhanced shielding protection for the internal conductive wires. Because laptops rotate frequently during use, the shielding material on traditional cables cannot withstand hundreds of thousands of rotations against the hinge, necessitating a thicker shielding material (over 80µm). However, with the growing demand for thinner, lighter, and more EMI-resistant electronic products, thicker shielding materials are inconvenient to accommodate the cable's routing environment.
[0003] Therefore, there is an urgent need for a shielding structure, cable and electronic product to solve the above technical problems. Summary of the Invention
[0004] Based on the above, the purpose of the present invention is to provide a shielding structure, cable and electronic product, which can improve the shielding property, wear resistance and bending durability of the shielding structure, reduce the thickness of the shielding structure, and enable the shielding structure to withstand 500,000 rotational frictions without damage or delamination.
[0005] To achieve this object, the present invention adopts the following technical solutions:
[0006] A shielding structure includes a polyimide film layer and a conductive fabric layer, wherein the polyimide film layer and the conductive fabric layer are bonded together by an acrylic adhesive layer, and a conductive adhesive layer is attached to the side of the conductive fabric layer facing away from the acrylic adhesive layer. The overall thickness T of the polyimide film layer, the acrylic adhesive layer, the conductive fabric layer, and the conductive adhesive layer after bonding is less than or equal to 0.04 mm.
[0007] In some possible implementations, the thickness t1 of the polyimide film layer is 0.01±0.003 mm; the thickness t2 of the acrylic adhesive layer is 0.005-0.007 mm; the thickness t3 of the conductive cloth layer is 0.02±0.003 mm; and the thickness t4 of the conductive adhesive layer is 0.005-0.007 mm.
[0008] In some possible implementations, the thickness t1 of the polyimide film layer is 0.01 mm, the thickness t2 of the acrylic adhesive layer is 0.005 mm, the thickness t3 of the conductive cloth layer is 0.02 mm, and the thickness t4 of the conductive adhesive layer is 0.005 mm.
[0009] In some possible implementations, the shielding structure further includes a release paper layer, and the release paper layer is attached to a side of the conductive adhesive layer facing away from the conductive fabric layer.
[0010] In some possible implementations, the surface resistance of the conductive fabric layer is ≤0.03 ohm / sq inch, the bonding resistance of the conductive adhesive layer is ≤0.08 ohm / sq inch, and the vertical direction resistance of the conductive adhesive layer is ≤0.05 ohm / sq inch.
[0011] In some possible implementations, the back adhesion between the polyimide film layer and the conductive fabric layer is ≥600 g / inch, the adhesion between the conductive fabric layer and 304 stainless steel is ≥1000 g / inch, and the adhesion between the polyimide film layer and 304 stainless steel is ≥400 g / inch.
[0012] In some possible implementations, the elongation of the polyimide film layer is ≥20%, and the elongation of the conductive fabric layer is ≥25%.
[0013] In some possible implementations, the shielding structure is in a strip shape and is processed into a sheet structure by die-cutting.
[0014] A cable comprises a conductive wire and the shielding structure described in any one of the above solutions, wherein the shielding structure is adhered and coated on the outside of the conductive wire.
[0015] An electronic product comprises a first body and a second body rotatably connected, and also comprises the cable described in any one of the above solutions, wherein the first body and the second body are electrically connected via the cable.
[0016] Beneficial effects of the present invention:
[0017] The shielding structure provided by the present invention includes a polyimide film layer and a conductive fabric layer. The polyimide film layer and the conductive fabric layer are bonded together by an acrylic adhesive layer, and the conductive fabric layer is connected to the object to be covered by the conductive adhesive layer for electrical conduction. The polyimide film layer provides interlayer insulation, isolating the internal conductive structure from the external environment and reducing the impact of the external environment on the internal structure. The conductive fabric layer has good conductivity and electromagnetic wave shielding effect. It is also flexible and easy to process and coat on wires. The conductive fabric layer also has excellent bending durability, which helps to improve the torsion life of the shielding structure. The acrylic adhesive layer effectively improves the wear resistance of the shielding structure, preventing the shielding performance of the shielding structure from being damaged or scratched during installation or use.
[0018] Under the premise of ensuring that the shielding structure has good shielding performance, the present invention does not need to increase the thickness of the shielding material. The overall thickness T of the polyimide film layer, acrylic adhesive layer, conductive cloth layer and conductive adhesive layer after bonding is less than or equal to 0.04mm. This meets the development demand of electronic products for lightweight and high EMI shielding, and can better adapt to the cable routing environment.
[0019] Cables wrapped with this shielding structure have a torsion lifespan of ≥500,000 cycles in a 0-135° torsion test. This means the cable can withstand 500,000 rotations without damage or delamination, while maintaining high shielding and conductivity. The shielding performance of this shielding structure reaches 0.2dB at 3MHz, 10dB at 1GHz, and 65dB at 10GHz. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a cross-sectional view of a shielding structure provided by an embodiment of the present invention;
[0021] Figure 2 This is a layout diagram of multiple sheet-shaped shielding structures after die-cutting provided by an embodiment of the present invention;
[0022] Figure 3 is a schematic diagram of a single sheet-shaped shielding structure after die-cutting provided by an embodiment of the present invention;
[0023] Figure 4 These are the test results of the resistance values of 16 cables having the shielding structure provided by the embodiment of the present invention in a 500,000-cycle torsion test at 135 degrees.
[0024] In the picture:
[0025] 1000, shielding structure; 100, polyimide film layer; 200, acrylic adhesive layer; 300, conductive fabric layer; 400, conductive adhesive layer; 500, release paper layer; 1001, positioning portion; 1002, clamping portion. DETAILED DESCRIPTION
[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.
[0027] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0029] In the description of the present invention, terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.
[0030] This embodiment provides a shielding structure that can be applied to cables of electronic products, such as internal high-speed transmission cables between laptop motherboards and screen connectors, to solve the problem that electronic products such as laptops require high rotation frequencies due to their application environments, and cables made of traditional shielding materials cannot withstand hundreds of thousands of times of friction with the rotating shaft, and the only option is to increase the thickness of the shielding material.
[0031] like Figures 1 to 3As shown, the shielding structure 1000 provided in this embodiment includes a polyimide film layer 100 and a conductive fabric layer 300. The polyimide film layer 100 and the conductive fabric layer 300 are bonded together by an acrylic adhesive layer 200. A conductive adhesive layer 400 is attached to the side of the conductive fabric layer 300 facing away from the acrylic adhesive layer 200. The conductive fabric layer 300 is connected to the object to be bonded via the conductive adhesive layer 400 for electrical conduction. Specifically, the polyimide film layer 100 is a black insulating film with a hardness of 1H to 4H. The polyimide film layer 100 provides interlayer insulation, isolating the internal conductive structure from the external environment, thereby reducing the impact of the external environment on the internal structure. The conductive fabric layer 300 has excellent conductivity and electromagnetic wave shielding effectiveness. Furthermore, the conductive fabric layer 300 is flexible, making it easier for the shielding structure 1000 to be wrapped around the wire. Furthermore, the conductive fabric layer 300 has excellent bending durability, which helps to improve the torsional life of the shielding structure 1000. The acrylic adhesive layer 200 is coated on the surface of the conductive cloth layer 300 and can form a hardened layer after bonding and curing with the polyimide film layer 100, thereby effectively improving the wear resistance of the shielding structure 1000 and preventing the shielding performance of the shielding structure 1000 from being reduced due to damage or scratches on the surface during installation or use.
[0032] In this embodiment, the combined thickness T of the polyimide film layer 100, acrylic adhesive layer 200, conductive fabric layer 300, and conductive adhesive layer 400 after lamination is ≤0.04mm. This configuration ensures that the shielding structure 1000 has excellent shielding performance without increasing its thickness. Furthermore, the shielding structure 1000 is ultra-thin and wear-resistant, meeting the growing demand for lightweight, high-shielding EMI in electronic products and better adapting to cable routing environments. Optionally, the combined thickness T of the polyimide film layer 100, acrylic adhesive layer 200, conductive fabric layer 300, and conductive adhesive layer 400 is 0.034mm to 0.04mm.
[0033] A cable wrapped with the shielding structure 1000 exhibits a torsion life of ≥500,000 cycles in a torsion test ranging from 0° to 135°. This means the cable can withstand 500,000 rotations without damage or delamination of the shielding structure 1000, while maintaining high shielding and electrical conductivity. Specifically, the shielding performance of the shielding structure 1000 reaches 0.2dB at 3MHz, 10dB at 1GHz, and 65dB at 10GHz.
[0034] Optionally, in this embodiment, the thickness t1 of the polyimide film layer 100 is 0.01±0.003mm; the thickness t2 of the acrylic adhesive layer 200 is 0.005-0.007mm; the thickness t3 of the conductive fabric layer 300 is 0.02±0.003mm; and the thickness t4 of the conductive adhesive layer 400 is 0.005-0.007mm. Through the combination of the thicknesses of the aforementioned layers, this embodiment effectively improves the wear resistance and flexibility of the shielding structure 1000 while maintaining a relatively thin thickness while ensuring excellent shielding performance. Specifically, the thickness t1 of the polyimide film layer 100 is 0.01mm, the thickness t2 of the acrylic adhesive layer 200 is 0.005mm, the thickness t3 of the conductive fabric layer 300 is 0.02mm, and the thickness t4 of the conductive adhesive layer 400 is 0.005mm.
[0035] Furthermore, the shielding structure 1000 of this embodiment also includes a release paper layer 500, which is attached to the side of the conductive adhesive layer 400 facing away from the conductive fabric layer 300. The release paper layer 500 serves as a protective layer, primarily protecting the shielding structure 1000 during transportation and storage. When the shielding structure 1000 is needed, the release paper layer 500 can be removed. The material and thickness of the release paper layer 500 are not specifically limited in this embodiment; any release paper can be selected based on specific needs, as long as it can protect the conductive adhesive layer 400.
[0036] In this embodiment, the surface resistance of the conductive fabric layer 300 is ≤ 0.03 ohm / sq inch, the bonding resistance of the conductive adhesive layer 400 is ≤ 0.08 ohm / sq inch, and the vertical resistance of the conductive adhesive layer 400 is ≤ 0.05 ohm / sq inch. Specifically, these performance parameters can be achieved by selecting conductive fabric layer 300 and conductive adhesive layer 400 with corresponding material properties. In this embodiment, the low resistance of the conductive fabric layer 300 and conductive adhesive layer 400 ensures that the shielding structure 1000 has good electrical conductivity.
[0037] Furthermore, in this embodiment, using 304 stainless steel as an example, the polyimide film layer 100 achieves a back-bonding strength of ≥600 g / inch with the conductive fabric layer 300 via the acrylic adhesive layer 200. The conductive fabric layer 300 achieves a bonding strength of ≥1000 g / inch with the 304 stainless steel via the conductive adhesive layer 400. Furthermore, the polyimide film layer 100 achieves a bonding strength of ≥400 g / inch with the 304 stainless steel via the acrylic adhesive layer 200, the conductive fabric layer 300, and the conductive adhesive layer 400. This arrangement ensures reliable bonding between the shielding structure 1000 and the 304 stainless steel, preventing delamination or detachment of the shielding structure 1000 during use.
[0038] Optionally, in this embodiment, the elongation of the polyimide film layer 100 is ≥ 20%, and the elongation of the conductive fabric layer 300 is ≥ 25%. This ensures that the shielding structure 1000 has excellent ductility and flexibility, facilitating its fabrication and wrapping around wires. Specifically, these performance parameters can be achieved by selecting polyimide film layer 100 and conductive fabric layer 300 with corresponding material properties.
[0039] This embodiment also provides a cable, comprising a conductive wire and the aforementioned shielding structure 1000, wherein the shielding structure 1000 is adhered and coated on the outside of the conductive wire. The cable of this embodiment has good shielding properties, conductivity, wear resistance, and bending durability, and can withstand 500,000 rotations and friction without damage or delamination. Figure 2 and Figure 3 As shown, the shielding structure 1000 of this embodiment is in a strip shape and is cut into multiple individual sheet structures by die cutting. The sheet-shaped shielding structure 1000 is more convenient to wrap around the conductive wire and facilitates positioning of the wrapping position of the shielding structure 1000, thereby improving the accuracy and reliability of the attachment.
[0040] Continue to refer Figure 3 In this embodiment, the sheet-like shielding structure 1000 is a parallelogram with an angle α between two adjacent sides of 135 degrees. One end of the sheet-like shielding structure 1000 is a positioning portion 1001 for facilitating positioning on a cable, and the other end is provided with a clamping portion 1002 for facilitating removal of the release paper layer 500 and clamping the shielding structure 1000. By way of example, the total length L1 of the sheet-like shielding structure 1000 is 53.81±0.20 mm, the length L2 of the positioning portion 1001 is 12.94±0.20 mm, the total width W1 of the sheet-like shielding structure 1000 is 8.00±0.10 mm, and the width W2 of the clamping portion 1002 is 4.73±0.10 mm.
[0041] This embodiment also provides an electronic product comprising a first body and a second body rotatably connected, and the aforementioned cable, wherein the first body and the second body are electrically connected via the cable. Specifically, the electronic product may be a laptop computer, wherein the first body and the second body are the laptop computer's motherboard and screen, respectively, and the motherboard and screen are connected via a connector containing the aforementioned cable. By employing the aforementioned cable, the electronic product of this embodiment improves its shielding performance and wear resistance, thereby extending its service life.
[0042] To facilitate understanding of the advantages of the present invention, fatigue tests were conducted on cable bundles coated with the shielding structure 1000 using one embodiment and three comparative examples. Table 1 below shows the comparative results of the embodiment and three comparative examples in terms of resistance, peel strength, and shielding performance.
[0043] As shown in Table 1, in this fatigue test, the total thickness (excluding release paper) of the shielding structure 1000 provided in the embodiment of the present invention was 40 μm, of which the polyimide film layer 100 had a thickness of 10 μm, the conductive fabric layer 300 had a thickness of 20 μm, the conductive adhesive layer 400 had a thickness of 5 μm, and the acrylic adhesive layer 200 had a thickness of 5 μm. The total thickness of the shielding structure in Comparative Example 1 was 10.1 μm, of which the polyimide film layer had a thickness of 5 μm, the conductive fabric layer had a thickness of 0.1 μm, and the conductive adhesive layer had a thickness of 5 μm. Comparative Example 1 did not include an acrylic adhesive layer. The total thickness of the shielding structure in Comparative Example 2 was 38.2 μm, of which the polyimide film layer had a thickness of 30 μm, the conductive fabric layer had a thickness of 0.2 μm, and the conductive adhesive layer had a thickness of 8 μm. Comparative Example 2 did not include an acrylic adhesive layer. The total thickness of the shielding structure in Comparative Example 3 was 60.6 μm, of which the polyimide film layer was 50 μm thick, the conductive fabric layer was 0.6 μm thick, and the conductive adhesive layer was 10 μm thick. No acrylic adhesive layer was provided in Comparative Example 3. Before testing, the resistance of the shielding structure 1000 provided in the embodiment of the present invention was 0.1 Ω, compared to 1.3 Ω in Comparative Example 1, 1.4 Ω in Comparative Example 2, and 1 Ω in Comparative Example 3. The resistance of the shielding structure 1000 in the embodiment of the present invention was significantly lower than that of Comparative Examples 1-3. Furthermore, the peel strength of the shielding structure 1000 against a conductive wire was 2 kgf / cm, compared to 1.27 kgf / cm in Comparative Example 1, 1.25 kgf / cm in Comparative Example 2, and 1.2 kgf / cm in Comparative Example 3. The peel strength of the shielding structure 1000 against a conductive wire was significantly greater than that of Comparative Examples 1-3. At the same time, the EMI shielding performance of the embodiment of the present invention is 10dB at 1GHz, the EMI shielding performance of Comparative Example 1 is 60dB at 1GHz, the EMI shielding performance of Comparative Example 2 is 60dB at 1GHz, and the EMI shielding performance of Comparative Example 3 is 70dB at 1GHz. The EMI shielding performance of the embodiment of the present invention is significantly better than that of Comparative Examples 1 to 3.
[0044] Table 1 135 degrees 500,000 times torsion test data
[0045]
[0046] By subjecting multiple groups of cable samples to a 135-degree 500,000-time twisting test, it was found that the appearance of the shielding structure 1000 of the embodiment of the present invention remained normal and no damage occurred after more than 500,000 twists; while the appearance of Comparative Example 1 was damaged after 2,000 twists, the appearance of Comparative Example 2 was damaged after 10,000 twists, and the appearance of Comparative Example 3 was damaged after 300,000 twists. It can be seen that the embodiment of the present invention is significantly superior to the three comparative examples in terms of wear resistance and bending durability. In addition, after 500,000 twists at 135 degrees, the resistance value of the shielding structure 1000 of the embodiment of the present invention was 0.101Ω, which was very small compared to the change before the test and still had good conductivity; while Comparative Examples 1-3 were damaged in appearance after 500,000 twists at 135 degrees, resulting in damaged circuits and an open circuit state. Therefore, the resistance values in Comparative Examples 1-3 could not be tested. Furthermore, after being twisted 500,000 times at 135 degrees, the shielding performance of the shielding structure 1000 of the embodiment of the present invention is 10dB at 1GHz, while the shielding performance of the shielding structure of Comparative Examples 1 to 3 was destroyed because the appearance was damaged after being twisted 500,000 times at 135 degrees. Therefore, the shielding performance of Comparative Examples 1 to 3 could not be tested.
[0047] To improve the test accuracy, an embodiment of the present invention provides multiple groups of cable bundles for performing the above-mentioned torsion test, wherein each group of cable bundles has 16 cables. Figure 4 The curve shown is the test result of the resistance value of 16 cables with the shielding structure provided by the embodiment of the present invention, wherein the horizontal axis is the number of tests and the vertical axis is the resistance value of the cable. It can be clearly seen from the figure that in the 500,000 times torsion test at 135 degrees, the resistance value of the 16 cables is stable and no significant changes occur. The slight fluctuations in the curve are caused by errors in the multiple tests.
[0048] Comparative analysis of the test data from the aforementioned 500,000-cycle 135-degree torsion test indicates that the shielding structure 1000 according to the present invention performed normally during the test, with normal appearance and resistance values, and no open circuits. However, Comparative Examples 1-3 were unable to withstand the 500,000 cycles of torsion. After 500,000 cycles, all samples showed damage, untestable resistance, and impaired shielding performance. Therefore, the shielding structure 1000 according to the present invention significantly outperformed the three comparative examples in terms of conductivity, shielding performance, wear resistance, and bending durability.
[0049] It should be noted that, since the opening and closing angle of the electronic product (such as a laptop computer) in this embodiment is usually within 135 degrees, the above-mentioned test of this embodiment is conducted by taking the cable twisted 135 degrees each time as an example. However, for situations where the cable is used in other different occasions and needs to be twisted at different angles, the twisting angle can be adaptively set to other values in the test, and the number of cable samples in each group can also be set according to actual needs. This does not affect the superiority of the embodiment of the present invention over the comparative example in the test results.
[0050] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. A shielding structure, characterized in that: The invention comprises a polyimide film layer (100) and a conductive cloth layer (300), wherein the polyimide film layer (100) and the conductive cloth layer (300) are bonded via an acrylic adhesive layer (200), a conductive adhesive layer (400) is attached to a side of the conductive cloth layer (300) facing away from the acrylic adhesive layer (200), and the overall thickness T of the polyimide film layer (100), the acrylic adhesive layer (200), the conductive cloth layer (300) and the conductive adhesive layer (400) after being bonded is less than or equal to 0.04 mm.
2. The shielding structure according to claim 1, wherein: The thickness t1 of the polyimide film layer (100) is 0.01±0.003 mm; the thickness t2 of the acrylic adhesive layer (200) is 0.005-0.007 mm; the thickness t3 of the conductive cloth layer (300) is 0.02±0.003 mm; and the thickness t4 of the conductive adhesive layer (400) is 0.005-0.007 mm.
3. The shielding structure according to claim 2, wherein: The thickness t1 of the polyimide film layer (100) is 0.01 mm, the thickness t2 of the acrylic adhesive layer (200) is 0.005 mm, the thickness t3 of the conductive cloth layer (300) is 0.02 mm, and the thickness t4 of the conductive adhesive layer (400) is 0.005 mm.
4. The shielding structure according to any one of claims 1 to 3, characterized in that: The shielding structure further comprises a release paper layer (500), and the release paper layer (500) is adhered to a side of the conductive adhesive layer (400) facing away from the conductive cloth layer (300).
5. The shielding structure according to claim 1, wherein: The surface resistance of the conductive cloth layer (300) is ≤0.03 ohm / sq inch, the bonding resistance of the conductive adhesive layer (400) is ≤0.08 ohm / sq inch, and the vertical direction resistance of the conductive adhesive layer (400) is ≤0.05 ohm / sq inch.
6. The shielding structure according to claim 1, wherein: The back adhesion between the polyimide film layer (100) and the conductive cloth layer (300) is ≥600 g / inch, the adhesion between the conductive cloth layer (300) and 304 stainless steel is ≥1000 g / inch, and the adhesion between the polyimide film layer (100) and 304 stainless steel is ≥400 g / inch.
7. The shielding structure according to claim 1, wherein: The elongation of the polyimide film layer (100) is ≥20%, and the elongation of the conductive cloth layer (300) is ≥25%.
8. The shielding structure according to claim 1, wherein: The shielding structure is in a strip shape and is processed into a sheet structure by die cutting.
9. A cable, characterized in that: It comprises a conductive wire and a shielding structure according to any one of claims 1 to 8, wherein the shielding structure is adhered and coated on the outside of the conductive wire.
10. An electronic product comprising a first body and a second body rotatably connected, characterized in that: The device further comprises the cable according to claim 9, wherein the first body and the second body are electrically connected via the cable.