High-speed transmission line with novel core wire structure

Abstract

The utility model relates to the technical field of signal transmission cables, in particular to a high-speed transmission line with a novel core wire structure, which is characterized in that the peripheries of a pair of core wires are sequentially coated with an inner coating layer, a shielding layer and a polyester wrapping tape, ground wires are symmetrically arranged on two sides of the shielding layer, each core wire comprises a conductor, an insulating layer and a reinforcing layer, the insulating layer is formed by weaving insulating wires, and the reinforcing layer is formed by weaving the insulating wires. According to the core wire structure, the insulation layer is formed by weaving the insulation wires instead of a traditional insulation layer extrusion mode, the core wire has better flexibility while the insulation effect is achieved, the periphery of the insulation layer is coated with the reinforcing layer, the reinforcing layer fixes the insulation layer on the surface of the conductor, and the insulation layer is tightly attached to the surface of the conductor. The structure of the insulating layer is not changed due to the action of external force in the subsequent process, the insulating layer of the core wire can form a porous structure through a weaving mode, and the overall dielectric constant of the core wire is reduced, so that the signal transmission speed and stability are improved, and the signal loss is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of signal transmission cables, and in particular to a high-speed transmission line with a novel core wire structure. Background Art

[0002] The existing signal transmission cable includes a pair of core wires, an aluminum foil shielding layer wrapped on the core wires, and an outer layer. In actual use processes and scenarios, the cable needs to withstand pressure, repeated movement, and twisting, and the existing core wire structure usually includes a conductor and an insulating layer, and the insulating layer is extruded around the conductor. On the one hand, the core wire structure prepared by the currently commonly used insulating materials is difficult to take into account various performance aspects, which hinders the further development of the high-speed cable industry. On the other hand, the core wire of the above structure is prone to deformation and damage when frequently bent, coiled, and subjected to high voltage, and has low flexibility and structural strength. Therefore, it is necessary to provide a high-speed transmission cable with good torsion resistance, flexibility, and high structural strength. Utility Model Content

[0003] In order to solve the above technical problems, the present application provides a high-speed transmission line with a new core wire structure, including a pair of core wires, an inner layer, a shielding layer and a polyester tape sequentially covered on the pair of core wires, and ground wires are symmetrically arranged on both sides of the shielding layer. Each of the core wires includes a conductor, an insulating layer and a reinforcement layer. The insulating layer is woven from insulating wire and tightly adheres to the surface of the conductor.

[0004] Preferably, the insulating wire may be made of any polymer material of PP, PE, PTFE, FEP, and XLPE.

[0005] Preferably, after the insulating wires are woven around the outer periphery of the conductor, an insulating layer with a porous structure is formed.

[0006] Preferably, the reinforcement layer is wrapped around the outer periphery of the insulation layer through a longitudinal wrapping structure.

[0007] Preferably, the reinforcement layer is a PTFE tape.

[0008] Preferably, the inner layer is tightly wrapped around the outer periphery of the reinforcement layer by extrusion.

[0009] Preferably, the shielding layer is coated on the outer side of the inner coating layer through a longitudinally wrapped structure.

[0010] Preferably, the two ground wires are placed in parallel on the outside of the shielding layer, the line connecting the center points of the two ground wires coincides with the line connecting the center points of the two core wires, and one side of the two ground wires is in contact with the outside of the shielding layer, and the other side of the ground wire is in contact with the inner side of the polyester tape.

[0011] Preferably, the polyester tape is wrapped around the outside of the shielding layer and the ground wire through a spiral wrapping structure.

[0012] As can be seen from the above, the following beneficial effects can be obtained by applying the present application: the present application scheme sequentially coats an inner layer, a shielding layer and a polyester tape on the outer periphery of a pair of core wires, and ground wires are symmetrically arranged on both sides of the shielding layer, wherein each core wire includes a conductor, an insulating layer and a reinforcement layer, the insulating layer is woven from insulating wires and is tightly attached to the surface of the conductor, and the core wire structure is woven from insulating wires to form an insulating layer instead of the traditional insulating layer extrusion method, which not only plays an insulating role but also makes the core wire have better flexibility, and then the reinforcement layer is coated on the outer periphery of the insulating layer, and the reinforcement layer fixes the insulating layer on the surface of the conductor to ensure that the insulating layer does not undergo structural changes due to external forces in subsequent processes, thereby ensuring the uniformity and stability of the structure. On the other hand, the insulating layer is formed into a porous structure by weaving insulating wires, which can bring a uniform porous structure to the core wire structure. When using traditional polymer braided wires, the overall dielectric constant of the core wire can be reduced by structural changes, thereby improving the speed and stability of signal transmission, reducing signal loss, and finally obtaining a high-speed transmission line with better flexibility, signal transmission and structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the description of the embodiments of the present application or the prior art are briefly introduced below. Obviously, the drawings described below are only part of the embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0014] Figure 1 This is a schematic diagram of a high-speed transmission line structure with a novel core wire structure according to an embodiment of the present application. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] Example

[0017] In order to solve the above technical problems, this embodiment provides a high-speed transmission line with a new core wire structure, such as Figure 1As shown, it includes a pair of core wires, an inner layer 400, a shielding layer 500 and a polyester tape 700 sequentially coated on the pair of core wires, and ground wires 600 are symmetrically arranged on both sides of the shielding layer, wherein each core wire includes a conductor 100, an insulating layer 200 and a reinforcement layer 300, wherein the insulating layer 200 is woven from insulating wires and tightly fits on the surface of the conductor 100, and the core wire structure is formed by weaving insulating wires to form an insulating layer 200 instead of a traditional insulating layer extrusion method, which not only plays an insulating role but also makes the core wire have better flexibility, and then the reinforcement layer 300 is coated on the outer periphery of the insulating layer 200, and the reinforcement layer 300 fixes the insulating layer 200 on the surface of the conductor 100, ensuring that the insulating layer 200 does not undergo structural changes due to the action of external forces in subsequent processes, ensuring the uniformity and stability of the structure, ensuring the stability of product signal transmission, and finally obtaining a high-speed transmission line with better flexibility and structural strength.

[0018] Specifically, the material of the insulating wire can be any one of PP, PE, PTFE, FEP, XLPE, or other polymer materials. In some embodiments, after the insulating wire is woven around the outer periphery of the conductor 100, an insulating layer 200 with a porous structure is formed. The porous structure makes the dielectric constant of the insulating layer 200 approach the dielectric constant of air, thereby improving the stability of the cable under the SI electrical performance test and further improving the SI electrical performance test results. By weaving the insulating wire to form a porous structure in the insulating layer, a uniform porous structure can be given to the core wire structure. When using traditional polymer braided wires, the overall dielectric constant of the core wire can be reduced by structural changes, thereby improving the speed and stability of signal transmission and reducing signal loss.

[0019] In the above solution, the reinforcement layer 300 is exemplarily a PTFE tape. The reinforcement layer 300 is wrapped on the insulating layer 200 through a longitudinal wrapping structure. The reinforcing layer 300 is then used to fix the insulating layer 200 on the surface of the braided conductor 100, ensuring that the structure does not change due to external forces in subsequent processes, thereby improving the stability of the structure and ensuring the stability of product signal transmission.

[0020] Furthermore, the inner quilt layer 400 is tightly wrapped around the outer periphery of the reinforcement layer 300 by extrusion. By extruding a layer of the inner quilt layer 400 around the outer periphery of the reinforcement layer 300, it is used for insulation and can further improve the stability of the structure. At the same time, the shielding layer 500 is wrapped around the outer side of the inner quilt layer 400 by a longitudinal wrapping structure.

[0021] Furthermore, two ground wires 600 are placed in parallel on the outside of the shielding layer 500, the center point line of the two ground wires 600 coincides with the center point line of the two core wires, and one side of the two ground wires 600 is in contact with the outside of the shielding layer 500, and the other side of the ground wire 600 is in contact with the inside of the polyester tape 700. The polyester tape 700 is wrapped around the outside of the shielding layer 500 and the ground wire 600 through a spiral wrapping structure, so that the shielding layer 500 and the ground wire 600 are closely attached to ensure the structural strength.

[0022] In summary, the present application scheme is to sequentially coat the outer periphery of a pair of core wires with an inner layer, a shielding layer and a polyester tape, and symmetrically arrange ground wires on both sides of the shielding layer, wherein each core wire includes a conductor, an insulating layer and a reinforcement layer, the insulating layer is woven from insulating wires and is tightly attached to the surface of the conductor, and the core wire structure is woven from insulating wires to form an insulating layer instead of the traditional insulating layer extrusion method, which not only plays an insulating role but also makes the core wire have better flexibility, and then the reinforcement layer is coated on the outer periphery of the insulating layer, and the reinforcement layer fixes the insulating layer on the surface of the conductor to ensure that the insulating layer does not undergo structural changes due to external forces in subsequent processes, thereby ensuring the uniformity and stability of the structure. On the other hand, the insulating layer is formed into a porous structure by weaving insulating wires, which can bring a uniform porous structure to the core wire structure. When using traditional polymer braided wires, the overall dielectric constant of the core wire can be reduced by structural changes, thereby improving the speed and stability of signal transmission, reducing signal loss, and finally obtaining a high-speed transmission line with better flexibility, signal transmission and structural strength.

[0023] The above-described implementation methods do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement made within the spirit and principle of the above-described implementation methods shall be included in the protection scope of the technical solution.

Claims

1. A high-speed transmission line with a new core structure, characterized in that: The invention comprises a pair of core wires, an inner layer (400) sequentially covering the pair of core wires, a shielding layer (500) and a polyester tape (700), wherein ground wires (600) are symmetrically arranged on both sides of the shielding layer, and each core wire comprises a conductor (100), an insulating layer (200) and a reinforcement layer (300), wherein the insulating layer (200) is woven from insulating wires and is tightly attached to the surface of the conductor (100).

2. The high-speed transmission line with a novel core structure according to claim 1, characterized in that: The insulating wire is made of any polymer material of PP, PE, PTFE, FEP, and XLPE.

3. The high-speed transmission line with a novel core structure according to claim 1, characterized in that: After the insulating wires are woven around the outer periphery of the conductor (100), an insulating layer (200) with a pore structure is formed.

4. The high-speed transmission line with a novel core structure according to claim 1, characterized in that: The reinforcement layer (300) is coated on the outer periphery of the insulating layer (200) through a longitudinally wrapped structure.

5. The high-speed transmission line with a novel core structure according to claim 4, characterized in that: The reinforcement layer (300) is a PTFE tape.

6. The high-speed transmission line with a novel core structure according to claim 5, characterized in that: The inner lining layer (400) is tightly wrapped around the outer periphery of the reinforcement layer (300) by extrusion.

7. The high-speed transmission line with a novel core structure according to claim 6, characterized in that: The shielding layer (500) is coated on the outer side of the inner covering layer (400) through a longitudinally wrapped structure.

8. The high-speed transmission line with a novel core structure according to claim 1, characterized in that: The two ground wires (600) are placed in parallel on the outside of the shielding layer (500), the center point line of the two ground wires (600) coincides with the center point line of the two core wires, and one side of the two ground wires (600) is in contact with the outside of the shielding layer (500), and the other side of the ground wire (600) is in contact with the inside of the polyester tape (700).

9. The high-speed transmission line with a novel core structure according to claim 1, characterized in that: The polyester tape (700) is wrapped around the outside of the shielding layer (500) and the ground wire (600) in a spirally wound structure.

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