Coaxial cable with high transmission rate

Abstract

The utility model provides a coaxial cable with a high transmission rate. The coaxial cable comprises a plurality of single-core coaxial cables, a flexible support, a flexible arc-shaped plate and a protective layer. Firstly, the combined structure of the flexible support and the flexible arc-shaped plate improves the flexibility and bending resistance of the cable, so that the cable is easier to install and operate in a complex wiring environment. And secondly, the dielectric loss in the signal transmission process is effectively reduced due to the application of the low-dielectric-constant filling layer, so that the data transmission rate and the signal stability are improved. Besides, the anti-extrusion layer, the metal shielding layer, the flame-retardant layer, the anti-ultraviolet layer, the ultraviolet reflecting layer, the wear-resistant layer and other multi-layer structures are arranged in the protective layer, so that the mechanical strength and durability of the cable are enhanced, and the weather resistance and safety of the cable in different environments are improved. And the cable can maintain excellent signal integrity and transmission efficiency in a long-distance transmission process. Therefore, the high-transmission-rate coaxial cable ensures long service life and reliability of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of coaxial cables, and particularly relates to a coaxial cable with a high transmission rate. Background Art

[0002] In the current era of rapidly changing communication technologies, coaxial cables, as an indispensable signal transmission medium, play a crucial role in promoting high-definition transmission of television signals, ensuring the quality of telephone communications, building high-speed computer networks, supporting complex radio communications, strengthening security monitoring systems, and facilitating aerospace communications. However, with the booming development of technologies such as big data, cloud computing, and the Internet of Things, as well as the surging application requirements for high-definition video and real-time data transmission, the performance bottlenecks of traditional coaxial cables have become increasingly prominent.

[0003] Traditional coaxial cables consist of a central conductor, an insulating layer, an outer conductor shielding layer, etc., ensuring basic signal transmission functions. However, they have certain deficiencies in modern application scenarios that require higher data transmission rates, stronger signal stability, and broader environmental adaptability. When attempting to break through the rate limit, high-transmission-rate coaxial cables often encounter the problem of significant attenuation of signals during transmission due to dielectric losses, resulting in a decline in signal quality and affecting transmission efficiency and reliability. At the same time, in complex and changing electromagnetic environments, the electromagnetic shielding efficiency of traditional coaxial cables is insufficient, making it difficult to effectively resist external electromagnetic interference and ensure the pure transmission of signals. In addition, long-distance transmission places higher requirements on the durability, ease of installation, and environmental adaptability of coaxial cables, while traditional coaxial cables are often difficult to meet these needs. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a coaxial cable with a high transmission rate, which solves the problems of some high-transmission-rate coaxial cables in the prior art, such as data transmission rate, signal attenuation, weak electromagnetic interference shielding, and poor durability.

[0005] A coaxial cable with a high transmission rate includes multiple single-core coaxial cables, a flexible support, a flexible arc plate, and a protective layer. The flexible support includes a flexible central core and multiple support ribs arranged on the outer side of the flexible central core. The single-core coaxial cables are arranged between the two support ribs. The flexible arc plate is arranged on the side of the support ribs away from the flexible central core, and the center of the flexible arc plate is arranged on the side away from the flexible central core. The protective layer includes an anti-extrusion layer, a metal shielding layer, a flame-retardant layer, an anti-ultraviolet layer, an ultraviolet reflection layer, and a wear-resistant layer that are arranged on the outer side of the flexible arc plate from the inside to the outside. Among them, a low-dielectric-constant filling layer is filled between the support ribs and the single-core coaxial cables and between the flexible arc plate and the anti-extrusion layer.

[0006] Preferably, the single-core coaxial cable includes a conductor, and a perfluoroethylene propylene insulation layer, a shielding layer, an anti-interference layer, and a flame-retardant and fire-resistant layer arranged outside the conductor.

[0007] Preferably, the flexible bracket and the flexible arc plate are made of thermoplastic polyurethane.

[0008] Preferably, the anti-extrusion layer is a honeycomb anti-extrusion layer.

[0009] Preferably, the metal shielding layer adopts a 3 / 3 twill weaving method.

[0010] Preferably, the flame-retardant layer is a low-smoke, halogen-free, high-flame-retardant tape.

[0011] Preferably, the anti-ultraviolet layer is an anti-ultraviolet fiber and spandex fiber mixed woven anti-ultraviolet layer.

[0012] Preferably, the wear-resistant layer includes an annular wear-resistant rubber and arc-shaped wear-resistant protrusions arranged outside the annular wear-resistant rubber.

[0013] Preferably, the flexible arc plate is arranged between the two single-core coaxial cables.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides a high-speed coaxial cable, including a plurality of single-core coaxial cables, a flexible bracket, a flexible arc plate, and a protective layer. First, the combined structure of the flexible bracket and the flexible arc plate improves the flexibility and anti-bending performance of the cable, making it easier to install and operate in complex wiring environments. Second, the application of the low-dielectric constant filling layer effectively reduces the dielectric loss during signal transmission, thereby improving the data transmission rate and signal stability. In addition, the multi-layer structure settings such as the anti-extrusion layer, metal shielding layer, flame-retardant layer, anti-ultraviolet layer, ultraviolet reflection layer, and wear-resistant layer in the protective layer not only enhance the mechanical strength and durability of the cable, but also improve its weather resistance and safety in different environments, ensuring that the cable can maintain excellent signal integrity and transmission efficiency during long-distance transmission. Therefore, the high-speed coaxial cable not only improves the flexibility and anti-bending performance of the cable, making the installation process more convenient, but also effectively reduces the signal transmission loss, significantly improves the data transmission rate and signal stability, and ensures the long-term service life and reliability of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the high-speed coaxial cable described in the present invention;

[0017] Wherein:

[0018] 10 - Single - core coaxial cable, 20 - Flexible bracket, 30 - Flexible arc plate, 40 - Protective layer, 21 - Flexible central core, 22 - Support ribs, 41 - Anti - extrusion layer, 42 - Metal shielding layer, 43 - Flame - retardant layer, 44 - Anti - ultraviolet layer, 45 - Ultraviolet reflection layer, 46 - Wear - resistant layer, 47 - Low - dielectric - constant filling layer, 11 - Conductor, 12 - Perfluoroethylene - propylene insulation layer, 13 - Shielding layer, 14 - Anti - interference layer, 15 - Flame - retardant and fire - resistant layer. Detailed implementation mode

[0019] The embodiments described below are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0020] Refer to Figure 1 , this embodiment provides a high - transmission - rate coaxial cable, which includes multiple single - core coaxial cables 10, a flexible bracket 20, a flexible arc plate 30 and a protective layer 40. The flexible bracket 20 includes a flexible central core 21 and multiple support ribs 22 arranged outside the flexible central core 21. The single - core coaxial cable 10 is arranged between the two support ribs 22. The flexible arc plate 30 is arranged on the side of the support ribs 22 away from the flexible central core 21. The center of the flexible arc plate 30 is arranged on the side away from the flexible central core 21. The protective layer 40 includes an anti - extrusion layer 41, a metal shielding layer 42, a flame - retardant layer 43, an anti - ultraviolet layer 44, an ultraviolet reflection layer 45 and a wear - resistant layer 46 which are arranged outside the flexible arc plate 30 from the inside to the outside. Among them, a low - dielectric - constant filling layer 47 is filled between the support ribs 22 and the single - core coaxial cable 10, and between the flexible arc plate 30 and the anti - extrusion layer 41.

[0021] Preferably, the single-core coaxial cable 10 includes a conductor 11 and a perfluoroethylenepropylene insulation layer 12, a shielding layer 13, an anti-interference layer 14, and a flame-retardant and fire-resistant layer 15 disposed outside the conductor 11. The perfluoroethylenepropylene insulation layer 12 has excellent electrical insulation performance and high-temperature resistance characteristics, ensuring the stability and reliability of the single-core coaxial cable 10 in a high-temperature environment. The combination of the shielding layer 13 and the anti-interference layer 14 greatly improves the electromagnetic interference resistance of the single-core coaxial cable 10, effectively reducing the influence of external signals on the cable transmission performance, thereby ensuring the stability and integrity of signal transmission. The application of the flame-retardant and fire-resistant layer 15 increases the safety of the single-core coaxial cable 10, and can effectively prevent the spread of fire in the event of a fire, providing additional safety protection for the use of the cable in a high-risk environment. It should be noted that in this application, the shielding layer 13 is made of a material with high conductivity, such as a copper foil or a tinned copper wire braided mesh, which effectively isolates the interference of the external electromagnetic field, reduces signal attenuation and crosstalk phenomena, and ensures the purity and integrity of signal transmission. The anti-interference layer 14 is made of a special alloy material or a magnetic material, such as an iron oxide material or a copper-nickel alloy, etc., which can effectively suppress electromagnetic interference in a specific frequency band and provide a solid barrier for signal transmission. The flame-retardant and fire-resistant layer 15 is made of a low-smoke, halogen-free, and high-flame-retardant material, such as a flame-retardant polyolefin or a ceramized silicone rubber, etc.

[0022] Preferably, the flexible bracket 20 and the flexible arc plate 30 are made of thermoplastic polyurethane. Thermoplastic polyurethane has excellent flexibility and elasticity, enabling the flexible bracket 20 and the flexible arc plate 30 to maintain their structural stability when subjected to bending and stretching, and can quickly return to their original state, enhancing the durability and adaptability of the cable. In addition, the chemical corrosion resistance of the thermoplastic polyurethane material further improves the service life and reliability of the cable in various harsh environments. It should be noted that in this application, the center of the flexible arc plate 30 is disposed on the side away from the flexible center core 21. Since the arc structure naturally has a relatively high compressive strength, the arc plate with the center facing outwards can better resist external pressure and protect the conductor 11 and the insulation layer inside the cable from mechanical damage. Secondly, the center of the arc plate facing outwards also contributes to the overall stability of the cable. Specifically, it can make the cable distribute stress more evenly when bent, reducing the damage to the conductor 11 during the bending process, thereby improving the durability and service life of the cable.

[0023] Preferably, the anti-extrusion layer 41 is a honeycomb anti-extrusion layer 41. The honeycomb anti-extrusion layer 41 has good compressive performance and relatively high anti-extrusion strength, and can effectively disperse and absorb the externally applied pressure, preventing the cable from deforming or being damaged when subjected to external extrusion. At the same time, the cavities of the honeycomb structure not only enhance the buffering ability of the cable but also reduce the weight of the cable.

[0024] Preferably, the metal shielding layer 42 is woven in a 3 / 3 twill pattern. The 3 / 3 twill pattern provides uniform coverage and excellent shielding effectiveness in the structure of the metal shielding layer 42, which can effectively reduce electromagnetic interference (EMI) and radio frequency interference (RFI), thereby improving the signal integrity and transmission quality. In addition, the 3 / 3 twill provides higher flexibility, enabling the cable to maintain excellent mechanical properties during bending and operation, while avoiding damage or failure of the shielding layer 13.

[0025] Preferably, the flame retardant layer 43 is a low-smoke, halogen-free, high flame retardant tape. The low-smoke, halogen-free, high flame retardant tape performs excellently in flame retardant properties and can effectively inhibit the combustion and spread of the cable under fire conditions. In case of combustion, the low-smoke characteristic ensures that the amount of smoke generated in a fire situation is minimized, reducing the harm to personnel and environmental pollution.

[0026] Preferably, the ultraviolet resistant layer 44 is a mixed woven ultraviolet resistant layer 44 of ultraviolet resistant fibers and spandex fibers. Specifically, the ultraviolet resistant fibers can effectively block the irradiation of ultraviolet rays, prevent material degradation and aging caused by ultraviolet rays, and extend the service life of the cable. The spandex fibers, due to their excellent elasticity and wear resistance, can enhance the wear resistance and toughness of the ultraviolet resistant layer 44, enabling it to maintain good protection effects in harsh environments.

[0027] Preferably, the wear-resistant layer 46 includes an annular wear-resistant rubber and arc-shaped wear-resistant protrusions provided on the outer side of the annular wear-resistant rubber. The annular wear-resistant rubber provides uniform protection for the cable, can effectively resist external physical impacts and wear, thereby extending the service life of the cable. The arc-shaped wear-resistant protrusions enhance the resistance to external physical damage. Their unique arc design can better disperse and absorb external impact forces, reducing the impact of direct collisions on the cable.

[0028] Preferably, in this application, the low dielectric constant filling layer 47 can be selected from polytetrafluoroethylene, honeycomb polystyrene (PS), honeycomb polyethylene or aerogel.

[0029] Preferably, the flexible arc-shaped plate 30 is disposed between the two single-core coaxial cables 10. This can avoid physical damage to the cable caused by bending or extrusion during the wiring process, thereby improving the overall durability and reliability of the cable. At the same time, it helps to maintain the stable relative position of the cable, reduce signal interference and attenuation caused by cable position changes, and thus improve the stability and quality of signal transmission.

[0030] The utility model provides a coaxial cable with high transmission rate, which comprises a plurality of single-core coaxial cables 10, a flexible bracket 20, a flexible arc-shaped plate 30 and a protective layer 40. First of all, the combined structure of the flexible bracket 20 and the flexible arc-shaped plate 30 improves the flexibility and bending resistance of the cable, making it easier to install and operate in complex wiring environments. Secondly, the application of the low-dielectric-constant filling layer 47 effectively reduces the dielectric loss during signal transmission, thereby improving the data transmission rate and signal stability, and at the same time can also provide a certain mechanical support ability. In addition, the setting of multiple layers of structures such as the anti-extrusion layer 41, the metal shielding layer 42, the flame-retardant layer 43, the anti-ultraviolet layer 44, the ultraviolet reflection layer 45 and the wear-resistant layer 46 in the protective layer 40 not only enhances the mechanical strength and durability of the cable, but also improves its weather resistance and safety in different environments, ensuring that the cable can maintain excellent signal integrity and transmission efficiency during long-distance transmission. Therefore, this coaxial cable with high transmission rate not only improves the flexibility and bending resistance of the cable, but also makes the installation process more convenient. At the same time, the signal transmission loss is effectively reduced through the low-dielectric-constant filling layer 47, significantly improving the data transmission rate and signal stability. Moreover, the application of the multi-layer protection structure not only enhances the anti-extrusion, anti-interference and flame-retardant properties of the cable, but also improves its weather resistance and wear resistance in harsh environments, ensuring the long-term service life and reliability of the cable.

[0031] The above-disclosed are only several preferred embodiments of the present utility model. Of course, the scope of the rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the scope of the patent application of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A coaxial cable with a high transmission rate, characterized in that: It includes multiple single-core coaxial cables, a flexible bracket, a flexible arc plate and a protective layer. The flexible bracket includes a flexible central core and multiple support ribs arranged outside the flexible central core. The single-core coaxial cables are arranged between the two support ribs. The flexible arc plate is arranged on the side of the support ribs away from the flexible central core, and the center of the flexible arc plate is arranged on the side away from the flexible central core. The protective layer includes an anti-extrusion layer, a metal shielding layer, a flame-retardant layer, an anti-ultraviolet layer, an ultraviolet reflection layer and a wear-resistant layer which are arranged on the outside of the flexible arc plate from the inside to the outside. Among them, a low dielectric constant filling layer is filled between the support ribs and the single-core coaxial cables and between the flexible arc plate and the anti-extrusion layer.

2. The high transmission rate coaxial cable according to claim 1, wherein, The single-core coaxial cable includes a conductor and a perfluoroethylenepropylene insulation layer, a shielding layer, an anti-interference layer and a flame-retardant and fire-resistant layer arranged outside the conductor.

3. The high transmission rate coaxial cable according to claim 1, wherein The flexible bracket and the flexible arc plate are made of thermoplastic polyurethane.

4. The coaxial cable with high transmission rate according to claim 1, wherein, The anti-extrusion layer is a honeycomb anti-extrusion layer.

5. The high transmission rate coaxial cable according to claim 1, wherein The metal shielding layer adopts a 3 / 3 twill weaving method.

6. The coaxial cable with high transmission rate according to claim 1, wherein The flame-retardant layer is a low-smoke and halogen-free high-flame-retardant tape.

7. The coaxial cable with high transmission rate according to claim 1, characterized in that, The anti-ultraviolet layer is an anti-ultraviolet fiber and spandex fiber mixed woven anti-ultraviolet layer.

8. The high transmission rate coaxial cable according to claim 1, wherein The wear-resistant layer includes an annular wear-resistant rubber and arc-shaped wear-resistant protrusions arranged on the outside of the annular wear-resistant rubber.

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