Horizontal steering wheel strip automatic magnetic free stretching data line and preparation method and application

Abstract

The application discloses a horizontal steering wheel strip-shaped automatic magnetic free-stretching data line, a preparation method and application. The data line comprises a flexible coating on the core, a flexible permanent magnetic coating layer in the middle and a flexible outer coating layer from inside to outside, and the preparation method comprises the following steps: step A, extrusion molding; step B, first north-south direction 180° constant magnetic field orientation magnetization, horizontal steering wheel strip-shaped shaping and preliminary forming; and then magnetization, horizontal reverse steering wheel strip-shaped automatic magnetic free-stretching data line. The application aims to solve the phenomenon that the existing technology data line automatic curling magnetic attraction is not completed, and the samarium iron nitrogen magnetic performance of the magnetic crystal anisotropy field which is much higher than other permanent magnetic materials can be better played through the improvement of the magnetization mode, so that the data line has the advantages of temperature resistance, corrosion resistance and demagnetization resistance, and the magnetic layer thickness is not required to be increased to meet the data line attraction requirement.

Description

Technical Field

[0001] This invention belongs to the field of magnetic materials, and particularly relates to a horizontal steering wheel strip-shaped automatic magnetic attraction free stretching data cable, its preparation method, and its application. Background Technology

[0002] Application number US10886587, electromagnetic insulated wire and manufacturing method and equipment thereof, the electromagnetic insulated wire can effectively reduce electromagnetic noise induced in the conductor and has high flexibility. The application of magnetic materials in the data line in this technical solution utilizes its soft magnetic permeability to meet EMC requirements.

[0003] US Patent Application No. 14105515 discloses a transmission cable with magnetic attraction, comprising: a tubular outer insulating sheath made of an electrically insulating material, wherein a magnetic substance is embedded in the insulating material; and conductors, each conductor having an insulator axially inserted into the tubular outer insulating sheath and a metal core surrounded by the insulator. Therefore, the transmission cable can be repeatedly folded back and forth to form a bundle, thereby allowing the bent sections of the tubular outer insulating sheath to be fixed to each other or to a magnetically attracting wall by magnetic attraction. This technology discloses the technical effect of magnetic attraction through folding back and forth, but does not disclose technical means sufficient to support this effect.

[0004] Announcement No. CN113674921B discloses a method for preparing a magnetically attracted, automatically coiled, and freely stretchable data cable. This method concentrates the magnetic force on the end faces of adjacent data cables in the vertical direction, allowing the data cables to maintain a coiled magnetic state and free stretchability. This provides a successful industrial application case for samarium iron nitrogen magnetic powder. The application of magnetic materials in this data cable utilizes permanent magnets to meet the requirement of sufficient magnetic force in the vertical direction. This data cable has been well-received by consumers since its market launch. However, many data cables on the market fail to achieve proper automatic coiling and magnetic attraction. The relentless pursuit of manufacturers and developers of magnetic materials for data cable applications is to make the use of magnetic force more efficient and ingenious, ensure safe magnetization, avoid relying on excessive magnetic materials to meet magnetic requirements, optimize storage methods and dimensions, enhance the appearance, and improve the user experience.

[0005] See Table 6 of CN113674921B. The magnetocrystalline anisotropy field of samarium iron nitrogen is much higher than that of other permanent magnet materials, reaching 14T, which is about twice that of Nd-Fe-B compounds. Further efforts are needed to solve the problem of saturation magnetization of samarium iron nitrogen in wires and to make full use of its magnetic properties.

[0006] The following is a supplementary explanation of the concepts involved in the technical solution of this application:

[0007] Constant current electromagnetic magnetization: A constant current of direct current is passed through the coil to generate a constant magnetic field in the coil;

[0008] Pulse electromagnetic magnetization: A large pulse current is passed through the coil momentarily, causing the coil to generate a short-lived, extremely strong magnetic field;

[0009] Magnetizing permanent magnets: Magnetizing through a constant magnetic field generated by a permanent magnet;

[0010] Softening and melting temperature: The softening and melting temperature of the magnetic layer or outer coating is also the melting temperature of its matrix components;

[0011] Flat data cables have a radial cross-section that is racetrack-shaped or square; round data cables have a radial cross-section that is circular.

[0012] Single data cable: When adjacent data cables are horizontally attached or during magnetization, it operates as a single cable, which is suitable for shorter data cables;

[0013] Foldable data cable: When folded in the middle, adjacent data cables are horizontally attracted or magnetized. The folded data cable is treated as a single data cable, which is suitable for longer data cables. Summary of the Invention

[0014] A method for manufacturing a horizontal steering wheel-shaped, automatically magnetically attracted, freely stretchable data cable, the data cable comprising, from the inside out, a flexible inner coating, a flexible permanent magnet coating layer in the middle, and an outer flexible outer coating layer, the manufacturing method comprising the following steps:

[0015] Step A, extrusion molding;

[0016] Step B involves first magnetizing the cable with a constant magnetic field at 180° north-south to form a horizontal, disc-shaped initial shape, and then magnetizing it again to form a horizontal, reverse disc-shaped data cable that automatically magnetically attracts and allows for free stretching.

[0017] The flexible covering material in the core is an assembly of flexible single wires that perform various functions, such as power lines and data lines.

[0018] First, a constant magnetic field of 180° north-south orientation is used for magnetization, with a magnetic field strength of 5000 Oersted Oe or more. Single data lines or folded data lines are pre-magnetized by the constant magnetic field orientation. At this time, the flexible permanent magnet magnetic coating layer is at the softening and melting temperature. After the data line cools and is shaped, it is initially shaped into a horizontal magnetic chuck strip.

[0019] The softening and melting temperature of the flexible permanent magnet magnetic coating layer is 120-130°C; the flexible outer coating layer with the data line on the outside has a softening and melting point temperature that is more than 30°C higher than that of the middle flexible permanent magnet magnetic coating layer.

[0020] The data cable is oriented and magnetized by a constant magnetic field of 180° in the north-south direction, and one of the speeds through the magnetic field is 10-120 meters / minute.

[0021] The north-south direction 180° constant magnetic field orientation magnetization, the parallel plane normal direction of the flat single data line or folded data line is parallel to the magnetic field direction when passing through the constant magnetic field, and the thickness is magnetized; one of the radial cross sections of the circular data line is parallel to the magnetic field direction.

[0022] The constant magnetic field is a constant current electromagnetic device or permanent magnet device set at the extrusion die opening, near the die opening, and at a north-south 180° angle away from the extrusion production line. The constant magnetic field area is larger than the diameter of the data line.

[0023] The area of ​​the constant magnetic field region, i.e., the area perpendicular to the magnetic field direction, is 1×10cm or 2×2cm.

[0024] The remagnetization process involves pulling apart the initially shaped data cable in a coil shape. The single data cable or folded data cable passes through a constant magnetic field at 180° north-south direction with a magnetic field strength of 20,000-30,000 Oersted Oe, maintaining the original magnetization direction. After remagnetization, the data cable becomes a horizontal, reversed coil shape that automatically magnetically attracts and freely stretches.

[0025] The remagnetization process involves the flat data line having its parallel plane normal direction parallel to the magnetic field direction, while the circular data line is passively magnetized during dynamic forward movement, with the direction of the magnetic field aligned with that of the orientation magnetization field.

[0026] The softening and melting point temperature of the flexible outer layer of the data cable is between 150°C and 260°C; the flexible outer layer of the data cable is at least one of a polymer layer, a braided layer, a leather layer, and a decorative layer;

[0027] The polymer layer is a blend comprising at least one of the following: polypropylene with a softening point of 160-180°C, polychlorotrifluoroethylene with a softening point of 200-220°C, polycarbonate with a softening point of 220-230°C, silicone rubber with a softening point of 200-250°C, polyphenylene sulfide modified polypropylene with a softening point of 180-220°C, polyethylene terephthalate with a softening point of 250-260°C, thermoplastic polyurethane (TPU) with a softening point of 150-180°C, and thermoplastic elastomer (TPE) with a softening point of 165-185°C, plasticizer, and additives.

[0028] The flexible permanent magnet magnetic coating layer is a flexible modified polymer composite material layer with permanent magnet material powder as filler;

[0029] The permanent magnet material is at least one of anisotropic samarium iron nitrogen, isotropic or anisotropic ferrite, isotropic or anisotropic neodymium iron boron, cerium iron boron, and samarium cobalt;

[0030] The matrix component of the flexible permanent magnet magnetic coating layer is a modified polymer made by blending thermoplastic elastomer (TPE) with plasticizers and additives, with a softening melting point of 50-150°C.

[0031] The modified polymer is at least one of the following: oil-extended polyvinyl chloride with a softening point of 70-115°C, oil-extended chlorinated polyethylene with a softening point of 75-90°C, oil-extended ethylene propylene diene monomer (EPDM) with a softening point of 90-110°C, polyolefin elastomer with a softening point of 50-120°C, polyethylene with a density of 0.96 / cm³ with a softening point of 100-120°C, poly-1-butene with a softening point of 125-135°C, polyvinylidene chloride with a softening point of 115-140°C, thermoplastic vulcanized rubber (TPV) with a softening point of 100-150°C, low-temperature thermoplastic elastomer (TPE) with a softening point of 60-130°C, and thermoplastic polyurethane (TPU) with a softening point of 110-130°C, along with a plasticizer and an additive blend.

[0032] A horizontal steering wheel strip-shaped automatic magnetic attraction and free stretching data cable includes one of the axisymmetric regular shapes with a cross-sectional shape of circular, flat, or elliptical. The data cable is characterized in that it is prepared by any of the above-mentioned methods for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction and free stretching data cable.

[0033] An application of a horizontal steering wheel-shaped strip-shaped automatic magnetic attraction and free stretching data cable, characterized in that the data cable is manufactured by any of the above-mentioned methods for preparing a horizontal steering wheel-shaped strip-shaped automatic magnetic attraction and free stretching data cable, and the data cable connector is one of a USB Type-C data connector, a Lightning data connector, and an audio data connector;

[0034] The front and rear connectors of the data cable are both located on the outer circumference of the horizontal magnetic chuck strip, and the data cable is folded. Beneficial effects

[0035] The magnetization method described in this embodiment is universally applicable to the magnetization of flexible wires;

[0036] In Examples 1 to 6, the magnetization process involves pre-magnetizing the magnets in a constant magnetic field of 0.8 MW Oersted Oe followed by re-magnetization in a constant magnetic field of 2.5 MW Oersted Oe. This magnetization method is designed for samarium iron nitrogen permanent magnets with an anisotropic field of 14T (approximately twice that of Nd-Fe-B compounds). It does not involve high-voltage pulses. One method is to use a high-performance sintered NdFeB permanent magnet with a constant magnetic field, which can meet the requirements for the pre- and re-magnetization magnetic field sizes. The magnetization operation of the technical solution in this application is safe and reliable, environmentally friendly, and easy to implement and mass-produce. It is also suitable for other permanent magnet materials and soft magnetic materials.

[0037] The surface magnetism increases with the increase of the magnetic layer thickness. The magnetization method in this embodiment improves the full utilization of the magnetic properties of samarium iron nitrogen and avoids the method of enhancing the surface magnetism by relying solely on thickness.

[0038] This magnetization method further solves the magnetization problem when using samarium iron nitrogen in wires. Based on the material properties of samarium iron nitrogen itself, such as a high Curie temperature of 476°C and high intrinsic coercivity, the data cable has superior characteristics in terms of corrosion resistance, processability, and demagnetization resistance.

[0039] This technical solution can also be extended to various cables such as power cords, audio cables, video cables, and network cables, making it universal; the magnetic clasp on the horizontal steering wheel of the folding data cable keeps the connector on the outer edge of the horizontal steering wheel for easy use.

[0040] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments. The technical solution and beneficial effects will become clearer. The enumeration of parameters related to magnetic field size and dimensions, as well as the illustrations, are not limitations on the technical solution of this application. Any addition, equivalent substitution, or recombination without inventiveness will fall within the protection scope of the technical solution of this application. Attached Figure Description

[0041] Figure 1 shows the appearance of a horizontal steering wheel strip-shaped automatic magnetic free stretching data cable according to embodiments 1 to 4 of this technical solution. The arrows in the figure indicate the magnetization direction of the parallel plane normal. The surface magnetism is greatest before and after the arrows. The cross-section is racetrack-shaped and has a braided outer layer.

[0042] Figure 2 shows one of the appearance schematic diagrams of a horizontal steering wheel strip-shaped automatic magnetic attraction free stretching data cable in embodiments 5 and 6 of this technical solution and comparative examples 1 and 2. The arrows in the figure indicate the magnetic attraction direction, the magnetic field is at its maximum, the cross-section is square, and the outer layer is a polymer coating.

[0043] Figure 3 is one of the cross-sectional diagrams of a horizontally oriented, strip-shaped, automatically magnetically attracted, freely stretchable data cable according to this technical solution. In the figure, 100 is the outer sheath, 200 is the magnetic layer, and 300 is the flexible covering. Due to the different data cables in actual situations, the flexibility of the covering, the number, arrangement, and diameter of the core wires, and the thickness of the magnetic layer are not as uneven as shown in Figure 200. The measured magnetic layer thickness is recorded as an average value, and the magnetic field is a range value, which truly reflects the final effect of the magnetic layer thickness.

[0044] Figure 4 shows one of the appearance schematic diagrams of a horizontally oriented, disc-shaped, automatically magnetically attracted, freely stretchable data cable application of this technical solution. The data cable is in a folded state, and the connectors at both ends of the data cable are located at the outer circle of the disc-shaped cable.

[0045] Figure 5 shows the process flow diagram for manufacturing the horizontal steering wheel strip data cable of this technical solution. Detailed Implementation

[0046] Referring to Figures 1-3, a method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction and free stretching data cable is described. The data cable includes, from the inside out, a tightly connected flexible core covering, a flexible permanent magnet covering layer in the middle, and a flexible outer covering layer. The preparation method is shown in Figure 5, which is a flowchart of the preparation process of the horizontal steering wheel strip-shaped data cable in this technical solution.

[0047] Extrusion molding: The flexible permanent magnet magnetic coating layer in the middle of the data cable is co-extruded with the flexible outer layer or extruded sequentially; or: the flexible permanent magnet magnetic coating layer in the middle of the data cable is extruded and then covered with a braided outer layer; both of these processes simultaneously cover the core layer.

[0048] First, the data cable is oriented and magnetized by a constant magnetic field at 180° north-south. Single or folded data cables are pre-magnetized by the constant magnetic field. At this time, the magnetic layer is at the softening and melting temperature of 120-130°C and the magnetic field strength is 8000 ohms Oe. After the data cable cools and is shaped, it is initially shaped into a horizontal magnetic chuck strip.

[0049] The flexible outer sheath of the data cable has a softening and melting point that is more than 30°C higher than that of the intermediate flexible permanent magnet coating. The single data cable or folded data cable has a travel speed of 90 m / min through a constant magnetic field. The constant magnetic field is a north-south oriented constant current electromagnetic or permanent magnet device set at the extrusion die. One of the constant magnetic field regions is 2×2 cm, which is larger than the diameter of the data cable. The normal direction of the parallel plane of the flat data cable is parallel to the direction of the magnetic field, and the thickness is magnetized. One of the radial sections of the circular data cable is parallel to the direction of the magnetic field.

[0050] Remagnetization was performed by stretching the initially shaped, coiled data cable. A single or folded data cable was passed through a constant magnetic field with a strength of 25,000 Oe. The normal direction of the parallel plane of the flat data cable was parallel to the direction of the magnetic field, and the thickness was magnetized. The circular data cable was passively magnetically attracted and dynamically moved forward, maintaining its original magnetization direction. After remagnetization, the data cable continued to maintain its horizontal coiled shape. The relevant parameters and magnetization results for the examples and comparative examples are recorded in Tables 1 and 2.

[0051]

[0052]

[0053] In the embodiments, the radial shapes of the data lines are racetrack-shaped and square, respectively, and the outer sheaths are braided and modified PP, respectively.

[0054] The permanent magnet materials for the magnetic layer are R450: 40% anisotropic ferrite + anisotropic samarium iron nitrogen, and R750: 100% anisotropic samarium iron nitrogen, in powder and granular form with approximately spherical shape; the matrix component is a mixture of CPE with at least one of POE and EVA, plasticizer and additives, with a softening and melting temperature of 120-130°C;

[0055] The softening and melting temperature of the outer coating layer is greater than 160°C, which is at least 30°C higher than that of the magnetic layer. The modified PP is the flexible outer coating layer, with a softening and melting point temperature of 160-260°C. It is a mixture of polypropylene (PP) with at least one of EPDM, PPS, PVC, silicone, plasticizer, and additives.

[0056] Comparative Example 1: Because the softening and melting point of the outer layer is the same as that of the magnetic material layer, it is impossible to complete the pre-magnetization with a constant magnetic field orientation at the softening and melting temperature of the magnetic layer, and the data line will deform; Comparative Example 2: No pre-magnetization was performed, and the surface magnetism could not be improved.

[0057] Implementation results record:

[0058] Table 2 shows embodiments 1-6 of this technical solution. In a constant magnetic field, 0.8 million Oersted Oe is first oriented and then 2.5 million Oersted Oe is used for magnetization. Only a constant current field of 2.5 million Oersted Oe is used for further magnetization. The surface magnetization can well meet the function of automatic coiling and free stretching of the data cable.

[0059] Table 2 shows that Examples 1, 4, and 5 contain 40% samarium iron nitrogen material, while Examples 2, 3, and 6 contain 100% samarium iron nitrogen material. Although the anisotropic field of samarium iron nitrogen reaches 14T, the magnetization of this technical solution still allows its surface magnetism to well meet the needs of automatic curling and free stretching of the data cable, avoiding the need to thicken the magnetic layer to meet the attraction requirements. In contrast, Comparative Examples 1 and 2 did not use constant magnetic field orientation magnetization, so the surface magnetism could not be improved, and the magnetic properties of magnetic materials such as samarium iron nitrogen could not be fully utilized. The final horizontal disc-shaped structure and adsorption were not ideal.

[0060] Referring to Figure 4, an application of a horizontal, disc-shaped, automatically magnetically attached, freely stretchable data cable is shown. In the folded state, the front and rear interfaces are both located on the outer circle of the horizontal disc shape, making it convenient to use.

[0061] analyze:

[0062] The technical solution of this application adopts a pre-magnetization method, which uses a constant magnetic field and speed control to allow sufficient rotation time for the magnetic domains. That is, the extension of the duration of the magnetic material in the magnetic field is used to improve the magnetization saturation by increasing the magnetic field strength.

[0063] The design of a magnetic layer softening and melting temperature of 120-130℃ allows the magnetic material to achieve an optimal force-saving balance state in the rotation and disordered tug-of-war of magnetic domains during the molten state and cooling process, thereby maximizing the rotation and maintenance of magnetic domains in both isotropic and anisotropic materials.

[0064] In traditional data cables, pre-magnetization and shaping with a constant magnetic field before further magnetization can lead to inconsistent magnetic field directions. This application addresses this by using a single or folded data cable drawn from a coiled shape, where a circular data cable is passively magnetically attracted and dynamically rotates in a constant current field; and by positioning a flat data cable with two opposing parallel surfaces to ensure consistent magnetic field directions.

[0065] By utilizing the different softening and melting points of materials in different structural layers, the data line can maintain its shape even when the magnetic layer is molten, thus simultaneously satisfying the requirements of low-resistance steering of the molten magnetic domains and the shaping of the data line.

[0066] The folding data cable is magnetized in the same way as a single data cable, so that when using a longer data cable, the front and rear connector ends are located at the outer circle of the horizontal bar, making it convenient to use.

Claims

1. A method for preparing a horizontally oriented, strip-shaped, automatically magnetically attracted, freely stretchable data cable, characterized in that: The data cable comprises, from the inside out, a core of flexible sheathing, a middle flexible permanent magnet sheathing, and an outer flexible sheathing, all tightly connected in sequence. Its fabrication method includes the following steps: Step A, extrusion molding; Step B: First, magnetize the cable with a constant magnetic field at 180° north-south direction to form a horizontal, disc-shaped initial shape. Then, magnetize it again to form a horizontal, reverse disc-shaped data cable that can be automatically magnetically attracted and freely stretched. First, a constant magnetic field of 180° north-south direction is used for orientation and magnetization. The magnetic field strength is above 5000 Oersted Oe. Single data lines or folded data lines are pre-magnetized by the constant magnetic field orientation. At this time, the flexible permanent magnet magnetic coating layer is at the softening and melting temperature. After the data line cools and is shaped, it is initially shaped into a horizontal magnetic chuck strip. The constant magnetic field is a constant current electromagnetic device or permanent magnet device set at the extrusion die opening, near the die opening, and at a north-south angle of 180° away from the extrusion production line. The constant magnetic field area is larger than the diameter of the data cable.

2. The method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretchable data cable according to claim 1, characterized in that, The softening and melting temperature of the flexible permanent magnet coating is 120-130℃.

3. The method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretchable data cable according to claim 1, characterized in that, The flexible outer sheath of the data line has a softening and melting point temperature that is more than 30°C higher than that of the intermediate flexible permanent magnet coating.

4. The method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretchable data cable according to claim 1, characterized in that, The magnetic field is oriented in a constant 180° north-south direction, and the line speed is 10-120 meters / minute.

5. The method for preparing a horizontal steering wheel strip-shaped automatic magnetically attracted and freely stretchable data cable according to claim 1, characterized in that, The 180° constant magnetic field in the north-south direction is used for magnetization. When a flat single data line or a folded data line passes through the constant magnetic field, the normal direction of the parallel plane is parallel to the direction of the magnetic field, and the thickness is magnetized. The radial cross section of the circular data line is parallel to the direction of the magnetic field.

6. The method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretchable data cable according to claim 1, characterized in that, The remagnetization process involves pulling apart the initially shaped, coiled data cable. A single or folded data cable is then passed through a constant magnetic field at a north-south angle of 180° with a magnetic field strength of 20,000-30,000 Oersted E, maintaining the original magnetization direction. After remagnetization, the data cable becomes a horizontal, reverse-shaped coiled cable that automatically attracts and freely stretches.

7. A method for preparing a horizontal steering wheel strip-shaped automatic magnetically attracted free-stretching data cable according to any one of claims 1 or 6, characterized in that, The remagnetization process involves the flat data line having its parallel plane normal direction parallel to the magnetic field direction, while the circular data line is passively magnetized during dynamic forward movement, with the direction of the magnetic field aligned with that of the orientation magnetization field.

8. The method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretchable data cable according to claim 1, characterized in that, The flexible outer sheath of the data cable has a softening and melting point temperature of 150°C to 260°C.

9. The method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretchable data cable according to claim 1, characterized in that, The flexible outer sheath of the data cable is at least one of a polymer layer, a braided layer, a leather layer, or a decorative layer.

10. The method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretchable data cable according to claim 1, characterized in that, The flexible permanent magnet magnetic coating layer is a flexible modified polymer composite material layer with permanent magnet material powder as filler.

11. The method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretchable data cable according to claim 10, characterized in that, The permanent magnet material is at least one of anisotropic samarium iron nitrogen, isotropic or anisotropic ferrite, isotropic or anisotropic neodymium iron boron, cerium iron boron, and samarium cobalt.

12. The method for preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretchable data cable according to claim 10, characterized in that, The matrix component of the flexible permanent magnet magnetic coating layer is a modified polymer made by blending thermoplastic elastomer (TPE) with plasticizers and additives, with a softening melting point of 50-150℃.

13. A horizontally oriented, strip-shaped, automatically magnetically attached, freely stretchable data cable, comprising a cross-sectional shape of one of the following axisymmetric regular shapes: circular, flat, or elliptical, or any irregular shape, characterized in that... The data cable is prepared by the method of preparing a horizontal steering wheel strip-shaped automatic magnetic attraction free stretching data cable according to any one of claims 1 to 12.

14. An application of a horizontal steering wheel-shaped strip-shaped automatic magnetically attached, freely stretchable data cable, characterized in that: The data cable is a horizontal steering wheel strip-shaped automatic magnetic suction free stretching data cable as described in claim 13, and the data cable connector is one of a USB type-c data connector, a Lightning data connector, and an audio data connector.

15. The application of the horizontal steering wheel strip-shaped automatic magnetic suction free stretchable data cable according to claim 14, characterized in that, The front and rear connectors of the data cable are both located on the outer circumference of the horizontal magnetic chuck strip, and the data cable is folded.

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