Magnetic attraction transmission line
By designing magnetic layers of unequal width and setting filler layers on both sides of the magnetic layers, the problem of high cost of traditional magnetic transmission lines is solved, achieving cost reduction and performance improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHNE DNS IND CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional magnetic transmission lines have high costs due to their structural design, which requires a lot of magnetic material and filler.
The magnetic layer is designed with an unequal width shape, where the width in the first direction is greater than the width in the second direction. A first filling layer is set on both sides of the magnetic layer to reduce the material used in the filling layer. It is produced using a specially designed one-piece molding extrusion die to reduce material consumption.
By reducing the use of magnetic material and filler layers, the cost of transmission lines is reduced while maintaining good magnetic performance and flexibility, thus improving service life and user experience.
Smart Images
Figure CN224203876U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of transmission line technology, and in particular to a magnetically attracted transmission line. Background Technology
[0002] With the development of technology, people are using more and more electronic devices in their daily lives and work. Data cables, charging cables, and other transmission cables are essential accessories for electronic devices. Whether at home, in the office, or traveling, transmission cables are used very frequently. Therefore, the storage and user experience of transmission cables have gradually become issues of concern.
[0003] Traditional magnetic transmission lines have high costs due to their structural design, which requires a lot of magnetic and filler materials. Utility Model Content
[0004] This application provides a magnetically attracted transmission line that can reduce the use of magnetic material and the material used in the first filler layer, thereby reducing the cost of the transmission line.
[0005] This application provides a magnetically attached transmission line, comprising:
[0006] wire core;
[0007] A magnetic layer is disposed around the core wire. The cross-section of the magnetic layer has a width along a first direction that is greater than its width along a second direction. The first direction is perpendicular to the second direction.
[0008] A first filling layer is disposed on both sides of the magnetic attraction layer along the second direction;
[0009] An outer protective layer is disposed around the magnetic layer and the first filling layer.
[0010] In some embodiments, the magnetic layer has a first end face and a second end face opposite each other along the first direction, the first end face having a first distance from the center of the wire core, the second end face having a second distance from the center of the wire core, and the first distance and the second distance being equal.
[0011] In some embodiments, the magnetic layer has a third end face and a fourth end face opposite each other along the second direction, the third end face having a third distance from the center of the wire core, the fourth end face having a fourth distance from the center of the wire core, and the third distance and the fourth distance being equal.
[0012] In some embodiments, the first end face, the second end face, the third end face, and the fourth end face are all planar.
[0013] In some embodiments, the first filling layer includes a first filling portion and a second filling portion located on both sides of the magnetic layer, wherein the side of the first filling portion away from the magnetic layer is arc-shaped, and the side of the second filling portion away from the magnetic layer is arc-shaped.
[0014] In some embodiments, the core comprises a plurality of metal wires that are electrically insulated from each other.
[0015] In some embodiments, the wire core further includes a first metal shielding layer disposed around the periphery of the plurality of metal wires.
[0016] In some embodiments, the wire core further includes:
[0017] The second metal shielding layer is disposed around the first metal shielding layer;
[0018] The second filling layer is disposed between the first metal shielding layer and the second metal shielding layer.
[0019] In some embodiments, the magnetic transmission line further includes interfaces located at both ends of the magnetic transmission line.
[0020] In some embodiments, the magnetic transmission line is a data line and / or a charging line.
[0021] In the magnetic transmission line of this application embodiment, the width of the magnetic layer along the first direction is greater than the width along the second direction, that is, the magnetic layer is set to a shape with unequal width. Compared with the setting of equal width in all directions, the use of magnetic material can be reduced. In addition, the first filling layer is set on both sides of the magnetic layer. Compared with the entire circle surrounding the periphery of the magnetic layer, the use of the first filling layer can be reduced, thus reducing the cost of the magnetic transmission line. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the first cross-sectional structure of the magnetic transmission line according to an embodiment of this application.
[0024] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the magnetic layer of the magnetic transmission line is shown.
[0025] Figure 3 for Figure 1A schematic diagram of the cross-sectional structure of the first filling layer of the magnetically attracted transmission line is shown.
[0026] Figure 4 This is a schematic diagram of a second cross-sectional structure of the magnetically attracted transmission line according to an embodiment of this application.
[0027] Figure 5 This is a schematic diagram of the magnetic transmission line in the winding state according to an embodiment of this application.
[0028] Explanation of reference numerals in the attached figures:
[0029] 100 - Magnetic transmission line; 10 - Wire core; 20 - Magnetic layer; 30 - First filler layer; 40 - Outer sheath; 50 - Interface;
[0030] 11-Metallic wire; 12-First metallic shielding layer; 13-Second metallic shielding layer; 14-Second filling layer;
[0031] 21-First end face; 22-Second end face; 23-Third end face; 24-Fourth end face;
[0032] 31-First filling portion; 311-The side of the first filling portion facing away from the magnetic layer; 32-Second filling portion; 321-The side of the second filling portion facing away from the magnetic layer;
[0033] Y - First direction; X - Second direction; O - Center of wire core 10. Detailed Implementation
[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0035] This application provides a magnetically attached transmission cable. This magnetically attached transmission cable can be a data cable and / or a charging cable, used for data transmission and / or charging of electronic devices. Furthermore, this magnetically attached transmission cable has a magnetic attraction function; when the cable is wound, the parts that are in contact with each other are attracted to each other magnetically, making it easy to store.
[0036] refer to Figure 1 , Figure 1 This is a schematic diagram of a first cross-sectional structure of the magnetic transmission line 100 according to an embodiment of this application. The magnetic transmission line 100 includes a core 10, a magnetic layer 20, a first filling layer 30, and an outer sheath 40.
[0037] The wire core 10 is used to transmit data or current, realizing data transmission and / or charging functions. In some embodiments, the wire core 10 includes multiple metal wires 11. The multiple metal wires 11 are electrically insulated from each other. For example, an insulating layer can be wrapped around each metal wire 11, or insulating material can be filled between adjacent metal wires 11 to make the multiple metal wires 11 electrically insulated from each other. The metal wires 11 can be, for example, copper metal wires. In practical applications, each metal wire 11 can be formed by a single metal wire or by multiple metal wires wound together. Metal wires formed by multiple metal wires wound together can improve data transmission capability and current transmission capability.
[0038] In some embodiments, the wire core 10 further includes a first metal shielding layer 12. The first metal shielding layer 12 is disposed around the periphery of the plurality of metal wires 11. In one example, the first metal shielding layer 12 may be a shielding layer formed of aluminum foil. The first metal shielding layer 12 can be used to shield external electromagnetic signals and reduce external electromagnetic interference experienced by the metal wires 11 when transmitting data or current.
[0039] A magnetic layer 20 is disposed around the core 10. The magnetic layer 20 is formed of a magnetic material, enabling the magnetic transmission line 100 to have a magnetic attraction function. In some embodiments, the magnetic material may also have flame-retardant properties; therefore, the magnetic layer 20 can also be understood as a flame-retardant magnetic layer. The cross-section of the magnetic layer 20 has a width along the first direction Y that is greater than its width along the second direction X, and the first direction Y is perpendicular to the second direction X. For example, in one example, the cross-section of the magnetic layer 20 may be as follows: Figure 1 The rectangle shown is an example. In other examples, the cross-section of the magnetic layer 20 can also be a parallelogram, a trapezoid (in which case the width can be understood as the average width), or other shapes.
[0040] The first filler layer 30 is disposed on both sides of the magnetic layer 20 along the second direction X. The first filler layer 30 can be a flexible filler layer. In some embodiments, the first filler layer 30 also has flame-retardant properties. In practical applications, the first filler layer 30 can be formed of a flexible material such as TPE (thermoplastic elastomer, also known as synthetic rubber), so that the magnetic transmission line 100 has high flexibility, does not require shaping, does not spring back during use, has better practicality, and can also improve the service life of the magnetic transmission line 100.
[0041] In practical applications, the magnetic layer 20 and the first filling layer 30 can be extruded in one step using a specially designed one-piece extrusion die, which improves the adhesion between the two materials and eliminates the need for secondary extrusion during production, making the production process more energy-efficient and environmentally friendly.
[0042] An outer sheath 40 is disposed around the magnetic layer 20 and the first filler layer 30. Along the first direction Y, the outer sheath 40 abuts against both sides of the magnetic layer 20, giving the magnetic layer 20 good magnetic attraction properties. Along the second direction X, the outer sheath 40 abuts against both sides of the first filler layer 30, enhancing the overall flexibility of the magnetic transmission line 100. The outer sheath 40 provides protection for the magnetic transmission line 100, preventing damage from scratches, impacts, etc., during use. In some embodiments, the outer sheath 40 also has flame-retardant properties.
[0043] In practical applications, the outer sheath 40 can be a braided sheath, or a mesh sheath. The outer sheath 40 can be made of highly resilient and skin-friendly fiber materials, making the cable softer, more flexible, and providing a better user experience. For example, the outer sheath 40 can be made of materials such as TPE or TPE composites, PVC (polyvinyl chloride) or PVC composites, or silicone.
[0044] In this embodiment of the magnetic transmission line 100, the width of the magnetic layer 20 along the first direction Y is greater than the width along the second direction X, that is, the magnetic layer 20 is set to a shape with unequal width. Compared with the setting of equal width in all directions, the use of magnetic material can be reduced. In addition, the first filling layer 30 is disposed on both sides of the magnetic layer 20. Compared with the entire circle surrounding the periphery of the magnetic layer 20, the use of material for the first filling layer can be reduced, thus reducing the cost of the magnetic transmission line 100.
[0045] In some embodiments, reference is also made to Figure 2 , Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the magnetic layer 20 of the magnetic transmission line shown.
[0046] The magnetic layer 20 has a first end face 21 and a second end face 22 opposite to each other along the first direction Y. The first end face 21 is at a first distance from the center O of the wire core 10, and the second end face 22 is at a second distance from the center O of the wire core 10. The first distance and the second distance are equal. That is, the magnetic layer 20 is symmetrically arranged along the first direction Y.
[0047] In some embodiments, the first end face 21 and the second end face 22 form the magnetic attraction contact surface of the magnetic attraction layer 20, and one of the first end face 21 and the second end face 22 forms the S pole of the magnetic attraction layer 20, and the other forms the N pole. For example, the first end face 21 can form the S pole, and the second end face 22 can form the N pole.
[0048] In some embodiments, continue to refer to Figure 2The magnetic layer 20 has a third end face 23 and a fourth end face 24 opposite each other along the second direction X. The third end face 23 is at a third distance from the center O of the wire core 10, and the fourth end face 24 is at a fourth distance from the center O of the wire core 10. The third distance and the fourth distance are equal. That is, the magnetic layer 20 is symmetrically arranged along the second direction X.
[0049] Understandably, the magnetic layer 20 is symmetrically arranged along the first direction Y and the second direction X, so that the magnetic layer 20 has a regular shape, which can make the structure of the magnetic transmission line 100 more stable and enhance the durability of the magnetic transmission line 100.
[0050] In some embodiments, the first end face 21, the second end face 22, the third end face 23, and the fourth end face 24 are all planar. It is understood that the planar nature of the first end face 21 and the second end face 22 ensures that the magnetic contact surface of the magnetic transmission line 100 is planar, thereby increasing the area of the magnetic contact surface and improving the magnetic attraction effect. The planar nature of the third end face 23 and the fourth end face 24 ensures good contact between the magnetic layer 20 and the first filling layer 30, enhancing the adhesion between the magnetic layer 20 and the first filling layer 30.
[0051] In some embodiments, reference is also made to Figure 3 , Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the first filling layer 30 of the magnetically attracted transmission line shown.
[0052] The first filling layer 30 includes a first filling portion 31 and a second filling portion 32. The first filling portion 31 and the second filling portion 32 are located on both sides of the magnetic layer 20, for example, disposed on both sides of the magnetic layer 20 along the second direction X. Specifically, the side 311 of the first filling portion 31 facing away from the magnetic layer 20 is arc-shaped, that is, the outer side 311 of the first filling portion 31 is arc-shaped; the side 321 of the second filling portion 32 facing away from the magnetic layer 20 is arc-shaped, that is, the outer side 321 of the second filling portion 32 is arc-shaped. It is understood that the arc-shaped outer sides of the first filling portion 31 and the second filling portion 32 allow for a smooth transition between the first end face 21 and the second end face 22 of the magnetic layer 20 and the first filling portion 31 and the second filling portion 32, making the outer sheath 40 disposed around the magnetic layer 20 and the first filling layer 30 smoother, reducing the sharp corners of the outer sheath 40, improving the user comfort of the magnetic transmission line 100, and making the magnetic transmission line 100 easier to store.
[0053] In some embodiments, reference Figure 4 , Figure 4 This is a schematic diagram of a second cross-sectional structure of the magnetically attracted transmission line 100 according to an embodiment of this application.
[0054] The wire core 10 further includes a second metal shielding layer 13 and a second filler layer 14. The second metal shielding layer 13 is disposed around the first metal shielding layer 12, and the second filler layer 14 is disposed between the first metal shielding layer 12 and the second metal shielding layer 13.
[0055] In one example, the second metal shielding layer 13 can also be a shielding layer formed of aluminum foil. Simultaneously providing the first metal shielding layer 12 and the second metal shielding layer 13 can enhance the shielding effect against electromagnetic signals and improve the anti-interference performance of the metal wire 11 when transmitting data or current.
[0056] In one example, the second filler layer 14 can be a filler layer formed of flame-retardant material. Therefore, during the use of the magnetic transmission line 100, even if a fire occurs due to a malfunction or other reasons, the second filler layer 14 formed of flame-retardant material can protect the internal metal wire 11, thereby improving safety.
[0057] In some embodiments, reference Figure 5 , Figure 5 This is a schematic diagram of the magnetic transmission line 100 in the winding state according to an embodiment of this application.
[0058] The magnetic cable 100 also includes interfaces 50 at both ends. These interfaces 50 can be various types, such as USB, USB Type-C, Lightning, HDMI, and DP, to meet the needs of different usage scenarios. The interfaces 50 at both ends of the magnetic cable 100 can be different types of interfaces or the same type of interface. The portion between the two interfaces 50 constitutes the cable portion of the magnetic cable 100, such as... Figure 5 The image shows the wire in its wound state, i.e., its stored state.
[0059] In the description of this application, it should be understood that terms such as “first” and “second” are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
[0060] The magnetic transmission line provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A magnetically attracted transmission line, characterized in that, include: wire core; A magnetic layer is disposed around the core wire. The cross-section of the magnetic layer has a width along a first direction that is greater than its width along a second direction. The first direction is perpendicular to the second direction. A first filling layer is disposed on both sides of the magnetic attraction layer along the second direction; An outer protective layer is disposed around the magnetic layer and the first filling layer.
2. The magnetic transmission line according to claim 1, characterized in that, The magnetic layer has a first end face and a second end face opposite each other along the first direction. The first end face is at a first distance from the center of the wire core, and the second end face is at a second distance from the center of the wire core. The first distance and the second distance are equal.
3. The magnetic transmission line according to claim 2, characterized in that, The magnetic layer has a third end face and a fourth end face opposite each other along the second direction. The third end face is at a third distance from the center of the wire core, and the fourth end face is at a fourth distance from the center of the wire core. The third distance and the fourth distance are equal.
4. The magnetic transmission line according to claim 3, characterized in that, The first end face, the second end face, the third end face, and the fourth end face are all planar.
5. The magnetic transmission line according to claim 1, characterized in that, The first filling layer includes a first filling portion and a second filling portion located on both sides of the magnetic layer. The side of the first filling portion away from the magnetic layer is arc-shaped, and the side of the second filling portion away from the magnetic layer is arc-shaped.
6. The magnetically attracted transmission line according to any one of claims 1 to 5, characterized in that, The core comprises multiple metal wires, which are electrically insulated from each other.
7. The magnetic transmission line according to claim 6, characterized in that, The wire core also includes a first metal shielding layer, which is disposed around the periphery of the plurality of metal wires.
8. The magnetic transmission line according to claim 7, characterized in that, The wire core also includes: The second metal shielding layer is disposed around the first metal shielding layer; The second filling layer is disposed between the first metal shielding layer and the second metal shielding layer.
9. The magnetically attracted transmission line according to any one of claims 1 to 5, characterized in that, It also includes interfaces located at both ends of the magnetic transmission line.
10. The magnetically attracted transmission line according to any one of claims 1 to 5, characterized in that, The magnetic transmission line is a data line and / or a charging line.