Automatically and vertically coiled, ribbon-shaped and freely extendable / retractable magnetic attraction data cable, preparation method therefor and use thereof

Abstract

An automatically and vertically coiled, ribbon-shaped and freely extendable / retractable magnetic attraction data cable, a preparation method therefor and a use thereof. The data cable sequentially comprises, from inside to outside, a flexible coated object serving as a core, a middle flexible permanent-magnetic coating layer and an outer flexible sheath layer which are tightly bonded. The preparation method for the data cable comprises the following steps: step A, performing extrusion molding; and step B, first performing pre-magnetization to form a vertically coiled ribbon shape, orienting under a 180° constant magnetic field in the north-south direction, and finally performing full magnetization. The problem in the prior art of inadequate magnetic attraction in automatic coiling of data cables is solved, so that the magnetic properties of samarium-iron-nitrogen magnets exhibiting a magnetocrystalline anisotropy field significantly higher than that of other permanent magnet materials can be better utilized, and the magnetization mode is more user-friendly; moreover, the data cable has significant advantages in terms of temperature resistance, corrosion resistance and demagnetization resistance, and achieves the breakthrough of meeting the magnetic attraction requirements of data cables by means of magnetic layer thickening.

Description

A vertical steering wheel strip-shaped automatic magnetic free-stretching data cable and its preparation method and application Technical Field

[0001] The present invention belongs to the field of magnetic materials, and in particular relates to a vertically directional strip-shaped automatic magnetically attracted freely stretchable data cable, a preparation method and an application thereof. Background Art

[0002] Application No. US10886587, electromagnetic insulated wire and its manufacturing method and equipment, which can effectively reduce electromagnetic noise induced in the conductor and have high flexibility. The application of magnetic materials in data cables of this technical solution utilizes its soft magnetic permeability to meet EMC requirements;

[0003] Application No. US14105515, a transmission cable with magnetic attraction, comprises: a tubular outer insulating sheath made of an electrically insulating material with a magnetic substance embedded therein; conductors, each conductor having an insulator axially inserted into the tubular outer insulating sheath; and a metal core surrounded by the insulator. Thus, the transmission cable can be repeatedly folded back and forth to form a bundle, so that the curved sections of the tubular outer insulating sheath can be fixed to each other or to a magnetically attractive wall by magnetic attraction. This technology discloses the technical effect of folding back and forth and magnetically fixing, but does not disclose sufficient technical means to support this effect.

[0004] Announcement No. CN113674921B, a method for preparing a magnetically attracted, automatically curling, and freely stretching data cable, discloses a method for preparing a magnetically attracted, automatically curling, and freely stretching data cable. This technical solution concentrates the magnetic attraction force on the end faces of adjacent data cables in the vertical direction, allowing the data cable to maintain a curled magnetic state and free stretching, successfully finding an industrial application case for samarium iron nitrogen magnetic powder. The application of magnetic materials in data cables in this technical solution utilizes its permanent magnetic material to meet the requirement of sufficient magnetic attraction force in the vertical direction. Once the data cable was launched on the market, it was welcomed by consumers. However, the phenomenon of inadequate automatic curling and magnetic attraction of data cables on the market is common. How to make fuller and more clever use of the magnetic attraction force, magnetize safely, avoid using a thicker magnetic layer to meet the attraction requirements, reduce the volume and space, optimize the storage method and size, make the appearance more attractive, and better improve the user experience is the unremitting pursuit of the production and research and development of magnetic materials for magnetic applications in data cables.

[0005] As shown in Table 6 of CN113674921B, the magnetocrystalline anisotropy field of SmFeN is much higher than that of other permanent magnet materials, reaching 14T, which is about twice that of Nd-Fe-B compounds. We still need to work hard to solve the problem of saturation magnetization of SmFeN wire and fully utilize the magnetic properties of SmFeN.

[0006] The following is a supplementary description of 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;

[0008] Pulse electromagnetic magnetization: a momentary pulse of high current is passed through the coil to generate a short-term ultra-strong magnetic field;

[0009] Permanent magnet magnetization: magnetization through the constant magnetic field generated by permanent magnets;

[0010] Softening and melting temperature: the softening and melting temperature of the magnetic layer or outer layer;

[0011] One of the radial cross-sectional shapes of the flat data cable is a racetrack shape or a square shape;

[0012] The radial cross-section of the circular data cable is circular;

[0013] Single data line: When adjacent data lines are vertically adsorbed or magnetized, it is a single-line operation, which is suitable for shorter data lines;

[0014] Folded data cable: Folded in the middle, when adjacent data cables are vertically adsorbed or during magnetization operation, the folded data cable is regarded as a single data cable, which is suitable for data cables with longer lengths. Summary of the Invention

[0015] A method for preparing a vertically oriented, strip-shaped, automatically magnetically attracted, freely stretchable data cable. The data cable comprises, from the inside out, a tightly connected flexible sheath at the core, a flexible permanent magnetic sheath in the middle, and a flexible outer sheath. The preparation method comprises the following steps: step A, extrusion molding; step B, pre-magnetizing to shape the vertically oriented strip, then orienting the cable in a constant magnetic field at 180° in the north-south direction, and finally magnetizing the cable.

[0016] The flexible covering on the core is a collection of flexible single wires such as power lines and data lines that realize various functions.

[0017] The pre-magnetization is performed to form a vertical strip shape. The extruded data line is either single or folded and then wrapped around a cylinder in a solenoid, or rolled into a vertical strip shape and placed in the solenoid. The axial centerline of the rolled data line, the axial centerline of the cylinder, and the axial centerline of the solenoid are parallel to or overlap. In the rolled state, the data line completes pulse magnetization in the solenoid, and the magnetic field strength is 2.0T to 5.0T.

[0018] Furthermore, the cylinder in the solenoid is installed on the base of a device with adjustable lifting height and rotation speed. The upper and lower ends of the cylinder are longer than the axial length of the solenoid. As the cylinder rotates, one end of the extruded data cable enters the solenoid and comes out from the other end of the solenoid after magnetization. The cylinder in the solenoid is non-magnetic. The pulse magnetization in the solenoid is intermittent magnetization, but the preparation process is continuous and uninterrupted. After the extruded flexible data cable enters the solenoid, it is pulse magnetized once when the cumulative axial height of the curled shape does not exceed 2 / 3 to 3 / 3 of the axial height of the solenoid, and the magnetized curled data cable is located in the middle of the central axis of the solenoid.

[0019] The data line is then oriented in a constant magnetic field at 180° in the north-south direction, and the pre-magnetized vertical strip-shaped data line is heated to the softening and melting temperature of the magnetic layer. The data line is pulled out of the strip shape into a single or folded data line and passed through a permanent magnet magnetic field or a constant current electromagnetic field at 180° in the north-south direction to be oriented and magnetized. The magnetic field strength is 5000Gs~2.0T. After cooling and shaping, the vertical magnetic strip shape is maintained.

[0020] Furthermore, the routing speed of a single or folded data line through a permanent magnet magnetic field or a constant current electromagnetic field is 10-120 m / min, and the constant magnetic field magnetization area is 2×2 cm or 1×10 cm;

[0021] Furthermore, the normal direction of the parallel surface of the flat data line is parallel to the direction of the magnetic field, and the radial circular data line is passively magnetically attracted and dynamically twisted to be oriented and magnetized while moving forward, maintaining the original magnetization direction;

[0022] Furthermore, the softening and melting temperature of the magnetic layer is 120-130°C;

[0023] The softening and melting temperature of the flexible outer layer is 30-140°C higher than that of the flexible permanent magnetic coating layer in the middle;

[0024] Furthermore, the softening point temperature of the outer flexible outer layer is 150°C to 260°C;

[0025] Furthermore, the outer flexible coating is at least one of a polymer, a woven layer, a leather, and a decorative layer;

[0026] Furthermore, the polymer layer is a blend comprising: polypropylene with a softening point of 160-180°C, polytrifluorochloroethylene 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, thermoplastic elastomer TPE with a softening point of 165-185°C, a plasticizer, and an additive.

[0027] The final magnetization is to complete the pulse magnetization in the solenoid or the constant current field in the oriented vertical curled coil state, and the data line is pulled out from the coil into a single or folded data line through the permanent magnet magnetic field or constant current electromagnetic field with a magnetic field strength of 2.0T~5.0T.

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

[0029] Furthermore, the permanent magnetic material is at least one of anisotropic samarium iron nitride, isotropic or anisotropic ferrite, isotropic or anisotropic neodymium iron boron, cerium iron boron, and samarium cobalt;

[0030] Furthermore, the softening melting temperature of the matrix component of the flexible modified high molecular polymer composite material layer is 50°C to 150°C;

[0031] Furthermore, the specific examples include: oil-filled polyvinyl chloride with a softening point of 70-115°C, oil-filled chlorinated polyethylene with a softening point of 75-90°C, oil-filled EPDM with a softening point of 90-110°C, polyolefin elastomer with a softening point of 50-120°C, and a density of 0.96 / cm 3 A blend of at least one of polyethylene at 125-135°C, poly-1-butene at 125-135°C, polyvinylidene chloride at 115-140°C, thermoplastic vulcanizate TPV at 100-150°C, low-temperature thermoplastic elastomer TPE at 60-130°C, thermoplastic polyurethane TPU at 110-130°C, a plasticizer, and an additive;

[0032] Furthermore, the matrix component of the flexible permanent magnetic coating layer is a modified high molecular polymer obtained by blending thermoplastic elastomer TPE with plasticizer and additives, and has a softening point of 120-130°C.

[0033] A vertical direction disk strip-shaped automatic magnetic freely stretchable data cable includes one of the axisymmetric regular shapes of circular, flat, and elliptical cross-sections. The data cable is prepared by the preparation method of a vertical direction disk strip-shaped automatic magnetic freely stretchable data cable described in any of the above items.

[0034] A vertical steering wheel strip-shaped automatic magnetic freely stretchable data cable is used. The data cable is made by any of the above-mentioned methods for making a vertical steering wheel strip-shaped automatic magnetic freely stretchable data cable. The data connector is one of a USB type-C data connector, a lightning data connector, and an audio data connector.

[0035] Furthermore, the front and rear connectors of the data cable are located at the same end of the vertical direction bar, and the data cable is in a folded shape. Beneficial effects

[0036] The magnetization method of this embodiment is universal for magnetizing flexible wires. Embodiments 1 to 6 of this application employ pulse shaping followed by 180° north-south constant magnetic field orientation followed by pulse or constant current field magnetization. This represents a novel magnetization method for samarium iron nitride permanent magnets, which have an anisotropy field of 14 T, approximately twice that of Nd-Fe-B compounds. The magnetic field directions remain consistent throughout the three magnetization stages. The magnetization operation of this technical solution is safe and reliable, environmentally friendly, and human-friendly, and is easy to implement and mass-produce.

[0037] The surface magnetism increases with the thickness of the magnetic layer. The magnetization method of this embodiment improves the full utilization of the magnetic properties of samarium iron nitrogen, breaking through the method of relying solely on thickness to enhance the surface magnetism.

[0038] The magnetization method of the technical solution of this application further solves the magnetization problem of the use of samarium iron nitride wire. Based on the material properties of samarium iron nitride itself, the Curie temperature is as high as 476°C and the intrinsic coercive force is high. The data cable has its own advantages in corrosion resistance, processability, and anti-demagnetization ability.

[0039] This technical solution can also be expanded to various wires such as power cables, audio cables, video cables, network cables, etc., and has universality; the folded data cable plus the coiled strip automatically attracts the long data cable interface so that the interface is at the same end, which is convenient to use.

[0040] The following further illustrates the technical solution of the present application in conjunction with the accompanying drawings and specific implementation methods, and the technical solution and beneficial effects will be clearer. The enumeration and legends of parameters related to the magnetic field size and size are not limitations on the technical solution of the present application. Any non-creative additions, equivalent substitutions, and recombinations will fall within the scope of protection of the technical solution of the present application.

[0041] BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of the appearance of a vertically oriented strip-shaped automatic magnetic free-stretching data cable in accordance with embodiments 1 to 4 of the present technical solution. The arrow in the figure indicates the magnetization direction parallel to the surface normal. The magnetism is strongest on the lower surface in the direction of the arrow. The cross-section is runway-shaped and the outer layer is braided.

[0043] Figure 2, Examples 5 and 6 of the present technical solution, and Comparative Examples 1 and 2, are schematic diagrams of the appearance of a vertically oriented strip-shaped automatic magnetically attracted free-stretching data cable. The arrow in the figure indicates the direction of magnetic attraction, and the magnetism is strongest on the lower surface in the direction of the arrow. The cross-section is square and the outer layer is a high molecular polymer.

[0044] FIG3 is a schematic diagram of a cross-section in the width direction of a vertically oriented strip-shaped automatic magnetically attracted freely stretchable data cable according to the present technical solution, in which 100 is the outer layer, 200 is the magnetic layer, and 300 is the flexible covering;

[0045] In view of the actual situation that the core coating is flexible, the number, arrangement and diameter of the core wires are different, the thickness of the magnetic layer is not as uneven as shown in 200. The thickness recorded in Table 2 is the average value. The surface magnetic measurement value is a range, which truly reflects the final effect of the magnetic layer thickness;

[0046] Figure 4 is a schematic diagram of the appearance structure of a vertically oriented, coil-shaped, automatically magnetic, freely stretchable data cable according to the present technical solution. The data cable is in a folded state, the data cable interface is a USB Type-C, and the connectors at the beginning and end of the data cable are located on the same end surface of the coil;

[0047] Figure 5 is a flow chart of the process for preparing vertical steering wheel strip data lines according to this technical solution. DETAILED DESCRIPTION

[0048] 1-3, a method for preparing a vertically oriented strip-shaped automatic magnetically attracted free-stretching data cable is shown, wherein the data cable comprises, from the inside out, a tightly connected flexible sheath at the core, a flexible permanent magnetic sheath in the middle, and a flexible outer sheath on the outside;

[0049] The preparation method thereof refers to FIG5 , a flow chart of the preparation process of the vertical direction wheel strip data line of the technical solution.

[0050] Extrusion molding: the flexible permanent magnetic coating layer in the middle of the data cable is co-extruded with the flexible outer layer or extruded in sequence; or: the flexible permanent magnetic coating layer in the middle of the data cable is extruded and then a braided outer layer is added;

[0051] First, the data cable is shaped into a vertical strip. After extrusion, it is wrapped around the cylinder inside the solenoid, or rolled into a vertical strip and placed inside the solenoid. The axial centerline of the data cable, the axial centerline of the cylinder, and the axial centerline of the solenoid are parallel or overlapped. In the coiled state, the data cable completes the pulse magnetization in the solenoid with a magnetic field strength of 2.5T, forming a vertical strip.

[0052] After reorientation, the resulting data line is heated to the softening melting temperature of the magnetic layer, 120-130°C, and then pulled from the coiled strip into a single or folded data line. It is then pre-magnetized in a permanent magnet magnetic field or a constant current electromagnetic field with a north-south direction of 180°. The magnetic field strength is 8000Gs. The normal of the parallel surface of the flat data line is parallel to the magnetic field direction. The circular data line is magnetized in a passive magnetic attraction and dynamic torsion, maintaining the same direction as the pulse magnetization. The data line is routed at a speed of 90 meters per minute in the constant magnetic field, and the constant magnetic field area is 2×2 cm. After cooling and finalization, it is formed into a vertical magnetic attraction strip.

[0053] Finally, the data line is magnetized again in the vertically curled coil state after orientation, and the magnetic field strength is 2.5T.

[0054] The relevant parameters and magnetization results of the embodiments and comparative examples are recorded in Table 1 and Table 2:

[0055]

[0056]

[0057] In the embodiment, the radial shapes of the data lines are respectively racetrack-shaped and square;

[0058] The permanent magnetic material particles of the magnetic layer are approximately spherical in shape, and the material types are R450: 40% anisotropic ferrite + anisotropic samarium iron nitride; R750: 100% anisotropic samarium iron nitride;

[0059] The magnetic layer matrix component is a mixture of chlorinated polyethylene added with at least one of POE and EVA, a plasticizer and an additive, and has a softening and melting temperature of 120-130°C;

[0060] The outer layer is made of braided layer and modified PP. The softening and melting temperature of the outer layer is 160~260°C, which is 40~140°C higher than that of the magnetic layer.

[0061] The modified PP has a softening melting point temperature of 160-260°C and is a modified mixture of polypropylene (PP), at least one of EPDM, PPS, PVC, silica gel, a plasticizer, and an additive.

[0062] In Comparative Example 1, since the softening temperature of the outer layer is the same as that of the magnetic material layer, the data line deforms after being heated to the softening and melting temperature; in Comparative Example 2, since no oriented magnetization process is used, only pulse magnetization is performed in the spiral tube. Regardless of whether the temperature is increased or the number of magnetizations is increased, the surface magnetism cannot be improved.

[0063] 4 , the present technical solution is one of the applications of a vertically oriented coil-shaped automatic magnetic freely stretchable data cable. The data cable is in a folded state, and the connectors at the end of the data cable are located on the same directional end surface of the coil. Result Record

[0064] In Table 2, Examples 1-6 of this technical solution use a pulse magnetization shaping + constant current orientation pre-charging + pulse magnetization method. Only 2.5T pulse magnetization is used before and after, and no pulse magnetization exceeding 3T is used. The surface magnetism can well complete the function of automatically curling and freely stretching the data cable.

[0065] In Table 2, Examples 1, 4, 5, the permanent magnet material containing 40% anisotropic ferrite, and Examples 2, 3, 6 with high anisotropic field performance of samarium iron nitrogen can all be used in data cables, and the surface magnetic energy can meet the requirements of automatic coil adsorption of data cables;

[0066] In contrast to Examples 1 and 2, there is no intermediate constant current field orientation magnetization. When the final pulse magnetization is repeated more than twice, the surface magnetism cannot be improved, the magnetic properties of samarium iron nitride cannot be fully exerted, and the data line cannot complete the automatic magnetic attraction of the vertical coil. analyze

[0067] The oriented pre-magnetization method of the technical solution of the present application uses a constant magnetic field and speed control to leave enough time for the magnetic domains to rotate, that is, the magnetization saturation is improved by increasing the magnetic field strength in exchange for the extension of the duration of the magnetic material in the magnetic field;

[0068] The design of the magnetic layer softening melting temperature of 120-130°C enables the magnetic domains of the magnetic material to achieve the best energy-saving equilibrium state in the rotation and disordering of the magnetic domains during the melting state and cooling process, thereby maximizing the rotation and maintenance of the magnetic domains of the same or opposite materials.

[0069] After the data line is pulse-shaped and then oriented and magnetized, it is difficult to keep the directions of the two consistent. In the technical solution of this application, the circular data line is pulled out from the coil and then the single data line is passively magnetically attracted and dynamically rotated in a constant current field. The flat data line is positioned in the direction of the normals of two parallel surfaces to ensure the consistency of the magnetic field directions of the two.

[0070] The different softening points of the materials in the different structural layers ensure that the data line can maintain its shape when the magnetic layer is molten, achieving the simultaneous satisfaction of the magnetic domain's low resistance in the molten state and the data line's appearance being fixed.

[0071] The folded data cable is treated as a single data cable with the same magnetization operation, so that when a longer data cable is used, the front and rear interface ends are at the same end of the vertical direction bar, which is convenient for use.

Claims

1. A preparation method of a vertical steering wheel strip-shaped automatic magnetic adsorption free-stretching data cable, characterized in that, The data cable sequentially includes, from the inside out, a flexible coating covering the core tightly connected thereto, a flexible permanent magnetic coating layer in the middle, and a flexible outer coating layer on the outside. Its preparation method includes the following steps: Step A, extrusion molding; Step B, first pre-magnetize to form a vertically oriented strip shape, then orient it in a constant magnetic field of 180° in the north-south direction, and finally magnetize.

2. The preparation method of a vertically-steered strip-shaped automatically magnetically-attracted freely stretchable data cable according to claim 1, characterized in that, The step of first pre-magnetizing to form a vertically oriented strip shape includes: after extrusion molding, the single or folded wire of the data cable is wound around a cylinder inside a solenoid, or curled into a vertical strip shape and placed inside the solenoid. The axial center line of the curled data cable, the axial center line of the cylinder, and the axial center line of the solenoid are parallel or overlapping. The data cable completes pulsed magnetization inside the solenoid in the curled strip state, with a magnetic field intensity of 2.0T - 5.0T.

3. The preparation method of a vertically-steered strip-shaped automatic magnetic-attraction free-stretching data cable according to any one of claims 1 or 2, characterized in that, The step of further orienting the data cable in a constant magnetic field of 180° in the north-south direction includes: heating the vertically oriented strip-shaped data cable that has completed pre-magnetization to the softening and melting temperature of the magnetic layer, pulling the single or folded data cable from the strip shape through a permanent magnet magnetic field or a constant current electromagnetic field of 180° in the north-south direction for orientation pre-magnetization, with a magnetic field intensity of at least 5000 Gs - 2T or above. After cooling and shaping, it maintains a vertical magnetic suction strip shape.

4. The preparation method of a vertically-steered strip-shaped automatic magnetic-attraction freely stretchable data cable according to claim 3, characterized in that, The running speed of the single or folded data cable passing through the permanent magnet magnetic field or the constant current electromagnetic field is one of 10 - 120 m / min.

5. The preparation method of a vertically-oriented steering wheel strip-shaped automatic magnetic attraction free-stretching data cable according to claim 3, characterized in that, When the single or folded data cable passes through the permanent magnet magnetic field or the constant current electromagnetic field, for a flat data cable, the normal direction of the parallel plane is parallel to the magnetic field direction; for a circular data cable, it is magnetized during passive magnetic suction and dynamic torsion forward, and magnetized in the same direction as the pre-magnetization magnetic field.

6. The preparation method of a vertical steering wheel strip-shaped automatic magnetic attraction free-stretching data cable according to claim 3, characterized in that, The softening and melting temperature of the magnetic layer is 120 - 130 °C.

7. The preparation method of a vertical steering wheel strip-shaped automatic magnetic attraction free-stretching data cable according to claim 1, characterized in that, The flexible outer coating layer has a softening and melting temperature at least 30 °C - 140 °C higher than that of the middle flexible permanent magnetic coating layer.

8. The preparation method of a vertical steering wheel strip-shaped automatic magnetic adsorption free-stretching data cable according to claim 1, characterized in that, The flexible outer coating layer on the outside is at least one of a polymer, a woven layer, a leather-like material, and a decorative layer.

9. The preparation method of a vertically-steering-wheel-strip-shaped automatic magnetic-attraction free-stretching data cable according to any one of claims 1 or 8, characterized in that, The softening and melting temperature of the flexible outer coating layer on the outside is 150 °C to 260 °C.

10. The preparation method of a vertically-steered strip-shaped automatic magnetic-attraction free-stretching data cable according to claim 1, characterized in that, For the final magnetization, the data cable after orientation completes pulsed magnetization inside the solenoid in the curled strip state in the vertical direction, with a magnetic field intensity of at least 2.0T - 5.0T.

11. The preparation method of a vertical steering wheel strip-shaped automatic magnetic adsorption free-stretching data cable according to claim 1, characterized in that, The flexible permanent magnetic coating layer is a flexible modified polymer composite layer filled with permanent magnet material powder.

12. The preparation method of a vertically-steered strip-shaped automatic magnetic-attraction freely-stretchable data cable according to claim 11, characterized in that, The permanent magnet material is at least one of anisotropic samarium iron nitride, isotropic or anisotropic ferrite, isotropic or anisotropic neodymium iron boron, cerium iron boron, and samarium cobalt.

13. The preparation method of a vertically steering wheel strip-shaped automatic magnetic adsorption free-stretching data cable according to claim 11, characterized in that, The matrix component of the flexible permanent magnetic coating layer is a modified polymer processed by blending a thermoplastic elastomer TPE with a plasticizer and additives, and the softening point is 50 - 150 °C.

14. A vertically oriented steering wheel strip-shaped automatic magnetic attraction free-stretching data cable, including one of the axisymmetric regular shapes with a circular, flat, or oval cross-sectional shape, characterized in that, The data cable is obtained by the preparation method of a vertically oriented strip-shaped automatic magnetic suction and free stretching data cable according to any one of claims 1 to 13.

15. Application of a vertically - steered strip - shaped automatic magnetic - attraction free - stretching data cable, characterized by The data cable is prepared by the preparation method of a vertical steering wheel strip-shaped automatic magnetic attraction free-stretching data cable according to any one of claims 1 to 13, and the data cable connector is one of a USB type-c data connector, a lightning data connector, and an audio data connector.

16. The application of a vertically-steered strip-shaped automatic magnetic attraction free-stretching data cable according to claim 15, characterized in that, The front and rear connector positions of the data cable are on the same end face of the vertical magnetic suction strip, and the data cable is in a folded shape.

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