Magnetic attraction line with composite shielding jacket
By using the multi-layered structure of the composite shielding component, the problem of electromagnetic interference that magnetic wires cannot shield is solved, achieving effective electromagnetic shielding and reinforcement functions, and adapting to signal transmission in high-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-31
AI Technical Summary
Existing magnetic wires cannot effectively shield against external electromagnetic interference, affecting internal signal transmission.
The composite shielding components include a multi-layered structure of braided mesh, copper foil wire, tin-plated copper wire, samarium iron nitrogen layer, ferrite layer and aluminum foil layer, combined with interwoven layers of fine iron wire and rattan and glass fiber layer, to form multi-layer protection and enhance shielding and reinforcement functions.
It achieves effective shielding against electromagnetic interference, enhances durability and flexibility, and maintains stable electromagnetic shielding and mechanical properties in high-temperature environments, thus protecting signal transmission.
Smart Images

Figure CN224067446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic connection technology, specifically to a magnetic attraction wire with a composite shielding jacket. Background Technology
[0002] Magnetic connection technology uses built-in strong magnetic materials such as neodymium iron boron to achieve rapid adsorption connection between cables and devices, solving the problem of inconvenient plugging and unplugging of traditional interfaces. It is widely used in smart wearable devices such as smartwatches, Bluetooth headsets, car navigation and medical devices. However, most magnetic cables at present cannot effectively shield external electromagnetic interference and protect internal signal transmission from being affected.
[0003] Now, a novel magnetic attraction wire with a composite shielding jacket is proposed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a magnetic cable with a composite shielding jacket to solve the problem of ineffective electromagnetic interference shielding mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a magnetic wire with a composite shielding jacket, comprising a magnetic wire with a composite shielding component fixedly connected inside the magnetic wire.
[0006] The composite shielding assembly includes a braided mesh, which is fixedly connected to the inside of the magnetic wire. Copper foil wires are fixedly connected inside the braided mesh, and tin-plated copper wires are fixedly connected to the periphery of the copper foil wires. A samarium iron nitrogen layer is fixedly connected to the inner wall of the braided mesh, a ferrite layer is fixedly connected to the inner wall of the samarium iron nitrogen layer, and an aluminum foil layer is fixedly connected to the inner wall of the ferrite layer.
[0007] As a further technical solution of this utility model, the copper foil wire and the tin-plated copper wire are interwoven and fixed together, and the shape and size of the inner wall of the samarium iron nitrogen layer are consistent with the shape and size of the outer wall of the ferrite layer.
[0008] As a further technical solution of this utility model, the shape and size of the inner wall of the ferrite layer are consistent with the shape and size of the outer wall of the aluminum foil layer, and the shape and size of the inner wall of the magnetic wire are consistent with the shape and size of the outer wall of the woven mesh.
[0009] As a further technical solution of this utility model, the samarium iron nitrogen layer is magnetic, and the magnetic wires are magnetically linked to each other through the samarium iron nitrogen layer.
[0010] As a further technical solution of this utility model, a braided layer is fixedly connected to the inner wall of the aluminum foil layer, a thin iron wire is fixedly connected to the inside of the braided layer, rattan is fixedly connected to the periphery of the thin iron wire, a first reinforcing layer is fixedly connected to the inner wall of the braided layer, a plurality of arched inner linings are fixedly connected to the inside of the first reinforcing layer, a second reinforcing layer is fixedly connected to the inner wall of the first reinforcing layer, a plurality of honeycomb inner linings are fixedly connected to the inside of the second reinforcing layer, and a glass fiber layer is fixedly connected to the inner wall of the second reinforcing layer.
[0011] As a further technical solution of this utility model, the thin iron wire and rattan are interwoven and fixed together, and the arched inner lining and honeycomb inner lining are arranged at equal intervals.
[0012] As a further technical solution of this utility model, a carbon fiber layer is fixedly connected to the inner wall of the glass fiber layer, a fluoroplastic layer is fixedly connected to the inner wall of the carbon fiber layer, a silicone rubber layer is fixedly connected to the inner wall of the fluoroplastic layer, and a wire core is fixedly connected to the inner wall of the silicone rubber layer.
[0013] As a further technical solution of this utility model, the shape and size of the inner wall of the carbon fiber layer are consistent with the shape and size of the outer wall of the fluoroplastic layer, and the shape and size of the outer wall of the wire core are consistent with the shape and size of the inner wall of the silicone rubber layer.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the magnetic wire with a composite shielding jacket not only achieves the function of shielding electromagnetic interference, but also achieves the function of reinforcement and high temperature resistance;
[0015] (1) By setting copper foil wire and tin-plated copper wire, when in use, the outermost layer of the braided mesh made of copper foil wire and tin-plated copper wire can provide a more uniform shielding effect and have better flexibility and durability. At the same time, the ferrite layer can effectively absorb and attenuate the energy of the external electromagnetic field, and the aluminum foil layer can effectively block the interference of the external electromagnetic field, thus protecting the transmission of the internal signal line. The three-layer protection prevents electromagnetic interference and realizes the function of shielding electromagnetic interference.
[0016] (2) By setting fine iron wire and rattan, when in use, the woven layer formed by the cross-woven fine iron wire and rattan forms a mesh structure that fits tightly to the cable, increasing the overall strength. At the same time, the arched inner lining inside the first reinforcement layer can transfer the external impact force from the top to the bottom arch foot for dispersion. The remaining force is transferred to the second reinforcement layer and then bears the pressure through the honeycomb inner lining. Because the hexagonal structure of the honeycomb inner lining allows each unit to evenly distribute the pressure, reducing stress concentration and alleviating the remaining impact force. Finally, the internal hardness is enhanced by the glass fiber layer, thus realizing the reinforcement function.
[0017] (3) By setting a fluoroplastic layer and a silicone rubber layer, the silicone rubber layer can maintain stable electromagnetic shielding performance in high temperature environment and can withstand high temperature without deformation or damage. At the same time, the fluoroplastic layer can maintain stable electrical and mechanical properties under extreme high temperature conditions, and the carbon fiber layer can maintain good insulation performance at extremely high temperatures and has high tensile strength and wear resistance. The triple protection realizes the high temperature resistance function. Attached Figure Description
[0018] Figure 1 This is a front view structural diagram of the present utility model;
[0019] Figure 2 This is an enlarged side view cross-sectional schematic diagram of the magnetic wire of this utility model;
[0020] Figure 3 This is an enlarged front view cross-sectional schematic diagram of the woven mesh of this utility model;
[0021] Figure 4 This is an enlarged front cross-sectional view of the woven layer of this utility model.
[0022] In the diagram: 1. Magnetic wire; 2. Braided mesh; 3. Copper foil wire; 4. Tinned copper wire; 5. Samarium iron nitrogen layer; 6. Ferrite layer; 7. Aluminum foil layer; 8. Braided layer; 9. Fine iron wire; 10. Rattan wire; 11. First reinforcing layer; 12. Arched lining; 13. Second reinforcing layer; 14. Honeycomb lining; 15. Glass fiber layer; 16. Carbon fiber layer; 17. Fluoroplastic layer; 18. Silicone rubber layer; 19. Wire core. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4 The present invention provides an embodiment of a magnetic wire with a composite shielding jacket, comprising a magnetic wire 1 with a composite shielding component fixedly connected inside the magnetic wire 1.
[0025] Please see Figure 1-4A magnetic wire with a composite shielding jacket also includes a composite shielding component. The composite shielding component includes a braided mesh 2, which is fixedly connected to the inside of the magnetic wire 1. Copper foil wires 3 are fixedly connected inside the braided mesh 2, and tin-plated copper wires 4 are fixedly connected to the periphery of the copper foil wires 3. A samarium iron nitrogen layer 5 is fixedly connected to the inner wall of the braided mesh 2, a ferrite layer 6 is fixedly connected to the inner wall of the samarium iron nitrogen layer 5, and an aluminum foil layer 7 is fixedly connected to the inner wall of the ferrite layer 6. The copper foil wires 3 and the tin-plated copper wires 4 are interwoven and fixed. The shape and size of the inner wall of the samarium iron nitrogen layer 5 are consistent with the shape and size of the outer wall of the ferrite layer 6, and the shape and size of the inner wall of the ferrite layer 6 are consistent with the shape and size of the outer wall of the aluminum foil layer 7. The shape and size of the inner wall of the magnetic wire 1 are consistent with the shape and size of the outer wall of the braided mesh 2. The samarium iron nitrogen layer 5 is magnetic, and the magnetic wires 1 are magnetically linked to each other through the samarium iron nitrogen layer 5 to enhance shielding.
[0026] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, in use, the outermost layer, a braided mesh 2 made of copper foil wire 3 and tin-plated copper wire 4, provides a more uniform shielding effect and has better flexibility and durability. At the same time, the ferrite layer 6 can effectively absorb and attenuate the energy of external electromagnetic fields, and the aluminum foil layer 7 can effectively block the interference of external electromagnetic fields, thus protecting the transmission of internal signal lines. The three layers of protection prevent electromagnetic interference and enhance protection.
[0027] A braided layer 8 is fixedly connected to the inner wall of the aluminum foil layer 7. A thin iron wire 9 is fixedly connected to the inside of the braided layer 8. A rattan filament 10 is fixedly connected to the outside of the thin iron wire 9. A first reinforcing layer 11 is fixedly connected to the inner wall of the braided layer 8. Multiple sets of arched inner linings 12 are fixedly connected to the inside of the first reinforcing layer 11. A second reinforcing layer 13 is fixedly connected to the inner wall of the first reinforcing layer 11. Multiple sets of honeycomb inner linings 14 are fixedly connected to the inside of the second reinforcing layer 13. A glass fiber layer 15 is fixedly connected to the inner wall of the second reinforcing layer 13. The thin iron wire 9 and rattan filament 10 are interwoven and fixed together. The arched inner linings 12 and honeycomb inner linings 14 are arranged at equal intervals, reinforcing layer by layer.
[0028] Specifically, such as Figure 1 and Figure 4 As shown, during use, the braided layer 8, formed by the cross-weaving of fine iron wire 9 and rattan filament 10, forms a mesh structure that fits tightly against the cable, increasing the overall strength. At the same time, the arched inner lining 12 inside the first reinforcing layer 11 can transfer the external impact force from the top to the arched foot at the bottom for dispersion. The remaining force is transferred to the second reinforcing layer 13 and then subjected to pressure by the honeycomb inner lining 14. Because the hexagonal structure of the honeycomb inner lining 14 allows each unit to evenly distribute the pressure, reducing stress concentration and alleviating the remaining impact force. Finally, the internal hardness is enhanced by the glass fiber layer 15, reinforcing the cable.
[0029] A carbon fiber layer 16 is fixedly connected to the inner wall of the fiberglass layer 15, a fluoroplastic layer 17 is fixedly connected to the inner wall of the carbon fiber layer 16, a silicone rubber layer 18 is fixedly connected to the inner wall of the fluoroplastic layer 17, and a wire core 19 is fixedly connected to the inner wall of the silicone rubber layer 18. The shape and size of the inner wall of the carbon fiber layer 16 are consistent with the shape and size of the outer wall of the fluoroplastic layer 17, and the shape and size of the outer wall of the wire core 19 are consistent with the shape and size of the inner wall of the silicone rubber layer 18, thereby enhancing the high temperature resistance.
[0030] Specifically, such as Figure 1 and Figure 2 As shown, during use, the silicone rubber layer 18 can still maintain stable electromagnetic shielding performance in high-temperature environments and can withstand high temperatures without deformation or damage. Meanwhile, the fluoroplastic layer 17 can maintain stable electrical and mechanical properties under extreme high-temperature conditions, and the carbon fiber layer 16 can maintain good insulation performance at extremely high temperatures, and has high tensile strength and wear resistance. This triple protection enhances high-temperature resistance.
[0031] Working Principle: In use, this invention firstly utilizes a double composite material: an outermost braided mesh 2 made of copper foil wire 3 and tin-plated copper wire 4. This double composite material provides a more uniform shielding effect and offers better flexibility and durability. Simultaneously, the ferrite layer 6 effectively absorbs and attenuates the energy of external electromagnetic fields, while the aluminum foil layer 7 effectively blocks interference from external electromagnetic fields, protecting the transmission of internal signal lines. This triple-layer protection prevents electromagnetic interference. During use, a braided layer 8, formed by the cross-weaving of fine iron wire 9 and rattan filaments 10, forms a mesh structure that tightly adheres to the cable, increasing overall strength. Furthermore, the arched inner lining 12 within the first reinforcing layer 11 can further protect the cable from external electromagnetic interference. The impact force is transferred from the top to the bottom arch foot for dispersion. The remaining force is transferred to the second reinforcing layer 13 and then borne by the honeycomb liner 14. The hexagonal structure of the honeycomb liner 14 allows each unit to evenly distribute the pressure, reducing stress concentration and mitigating the remaining impact force. Finally, the internal hardness is enhanced by the glass fiber layer 15. During use, the silicone rubber layer 18 can maintain stable electromagnetic shielding performance in high-temperature environments and can withstand high temperatures without deformation or damage. At the same time, the fluoroplastic layer 17 can maintain stable electrical and mechanical properties under extreme high-temperature conditions, and the carbon fiber layer 16 can maintain good insulation performance at extremely high temperatures and has high tensile strength and wear resistance, providing triple protection.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A magnetic attraction wire having a composite shielding sheath, comprising a magnetic wire (1), characterized in that: The inside of the magnetic wire (1) is fixedly connected with a composite shielding assembly; The composite shielding assembly comprises a woven mesh (2) fixedly connected to the inside of the magnetic wire (1), the inside of the woven mesh (2) is fixedly connected with a copper foil wire (3), the periphery of the copper foil wire (3) is fixedly connected with a tinned copper wire (4), the inner wall of the woven mesh (2) is fixedly connected with a samarium iron nitride layer (5), the inner wall of the samarium iron nitride layer (5) is fixedly connected with a ferrite layer (6), and the inner wall of the ferrite layer (6) is fixedly connected with an aluminum foil layer (7).
2. The magnetic attraction string with a composite shielding sheath according to claim 1, characterized in that: The copper foil wire (3) and the tinned copper wire (4) are fixedly interwoven, and the inner wall shape size of the samarium iron nitride layer (5) is consistent with the outer wall shape size of the ferrite layer (6).
3. The magnetic attraction string with a composite shielding sheath according to claim 1, characterized in that: The inner wall shape size of the ferrite layer (6) is consistent with the outer wall shape size of the aluminum foil layer (7), and the inner wall shape size of the magnetic wire (1) is consistent with the outer wall shape size of the woven mesh (2).
4. The magnetic attraction string with a composite shielding sheath according to claim 1, characterized in that: The samarium iron nitride layer (5) has magnetism, and the magnetic wires (1) are magnetically linked with each other through the samarium iron nitride layer (5).
5. The magnetic attraction string with a composite shielding sheath according to claim 1, characterized in that: The inner wall of the aluminum foil layer (7) is fixedly connected with a braided layer (8), the inside of the braided layer (8) is fixedly connected with a fine iron wire (9), the periphery of the fine iron wire (9) is fixedly connected with a rattan wire (10), the inner wall of the braided layer (8) is fixedly connected with a first reinforcing layer (11), the inside of the first reinforcing layer (11) is fixedly connected with a plurality of groups of arched inner liners (12), the inner wall of the first reinforcing layer (11) is fixedly connected with a second reinforcing layer (13), the inside of the second reinforcing layer (13) is fixedly connected with a plurality of groups of honeycomb inner liners (14), and the inner wall of the second reinforcing layer (13) is fixedly connected with a glass fiber layer (15).
6. The magnetic attraction string with a composite shielding sheath according to claim 5, characterized in that: The fine iron wire (9) and the rattan wire (10) are fixedly interwoven, and the arched inner liners (12) and the honeycomb inner liners (14) are arranged at equal intervals.
7. The magnetic attraction string with a composite shielding sheath according to claim 5, characterized in that: The inner wall of the glass fiber layer (15) is fixedly connected with a carbon fiber layer (16), the inner wall of the carbon fiber layer (16) is fixedly connected with a fluoroplastic layer (17), the inner wall of the fluoroplastic layer (17) is fixedly connected with a silicone rubber layer (18), and the inner wall of the silicone rubber layer (18) is fixedly connected with a wire core (19).
8. The magnetic attraction string with a composite shielding sheath according to claim 7, characterized in that: The inner wall shape size of the carbon fiber layer (16) is consistent with the outer wall shape size of the fluoroplastic layer (17), and the outer wall shape size of the wire core (19) is consistent with the inner wall shape size of the silicone rubber layer (18).