Insulated radio frequency coaxial cable with high mechanical strength
By adding a composite armor layer to the radio frequency coaxial cable, the problem of insufficient mechanical strength of traditional radio frequency coaxial cables in high mechanical stress environments is solved, achieving stable transmission of radio frequency signals and improved cable flexibility.
Patent Information
- Application Number
- CN202520159752.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Traditional radio frequency coaxial cables struggle to balance stable radio frequency signal transmission and mechanical strength in environments requiring high mechanical stress or high insulation performance.
A composite armor layer is added between the inner sheath and the outer sheath. The composite armor layer consists of several composite armor wires wound in a spiral direction, including a heat-capacity layer and a metal wire bundle. They form a tight whole by mutual heat capacity through heating, which enhances the mechanical properties of the cable.
It significantly improves the mechanical strength and flexibility of the cable, enabling stable transmission of radio frequency signals in complex environments and adapting to various installation environments.
Smart Images
Figure CN223713038U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to cable technical field especially relates to a high mechanical strength insulated radio frequency coaxial cable. BACKGROUND
[0002] Radio frequency coaxial cable is usually used in communication equipment. The traditional radio frequency coaxial cable is usually composed of inner conductor, insulation layer, shielding layer and outer sheath layer, and its structure is relatively simple, but in some special application scenarios, such as the environment requiring higher mechanical stress or higher insulation performance, the traditional structure often cannot meet the demand. Especially when the stable transmission of radio frequency signal and the mechanical strength of cable need to be ensured at the same time, the radio frequency coaxial cable in the prior art often cannot be considered.
[0003] Therefore, it is very necessary to invent a high mechanical strength insulated radio frequency coaxial cable. SUMMARY
[0004] In order to solve the above technical problems, the utility model provides a kind of high mechanical strength insulated radio frequency coaxial cable, including inner conductor, insulation layer, shielding layer, inner sheath layer, composite armor layer and outer sheath layer, the inner conductor is provided with insulation layer outside, shielding layer is covered in insulation layer outside, shielding layer is formed with inner sheath layer outside extrusion, inner sheath layer is hot with composite armor layer outside, the outer extrusion of composite armor layer is formed with outer sheath layer.
[0005] Preferably, the composite armor layer is located between the inner sheath layer and the outer sheath layer, and the composite armor layer is composed of a plurality of composite armor wires wound in a spiral manner outside the inner sheath layer.
[0006] Preferably, the composite armor wire of the composite armor layer comprises a thermal capacity layer and a metal wire bundle, the thermal capacity layer is extruded outside the metal wire bundle, and the metal wire bundle is a wire made of a plurality of metal wires of the same diameter.
[0007] Preferably, the thermal capacity layer of the composite armor wire is heated together, and is heated together with the inner sheath layer on the inner side.
[0008] Preferably, the cross section of the thermal capacity layer is circular, and the thermal capacity layer after combination will naturally form a spiral groove.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] The utility model discloses a composite armoring layer is additionally arranged between the inner sheath layer and the outer sheath layer, which significantly improves the mechanical strength of the cable.
[0011] Specifically, the composite armoring wire is designed in combination with the thermal capacity layer and the metal wire bundle, the metal wire bundle is twisted by a plurality of metal wires with the same diameter, which ensures the overall strength and stability of the armoring wire.
[0012] In addition, the cross section of the thermal capacity layer is circular, so that the thermal capacity layers naturally form spiral grooves after being combined, which is not only beneficial to the bending and twisting of the cable, but also increases the flexibility of the cable to some extent, making it more suitable for use in complex environments. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is the schematic diagram of the layered structure of the utility model.
[0014] Figure 2 is the schematic diagram of the structure of the composite armoring wire of the utility model.
[0015] In the drawings:
[0016] Inner conductor 1, insulating layer 2, shielding layer 3, inner sheath layer 4, composite armoring layer 5, thermal capacity layer 51, metal wire bundle 52, outer sheath layer 6. DETAILED DESCRIPTION
[0017] In order to enable the personnel in the technical field to better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the utility model.
[0018] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be direct connection, can also be indirect connection through an intermediate medium, and can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0019] As shown in the accompanying Figure 1 to the accompanying Figure 2 drawings:
[0020] The utility model provides a kind of high mechanical strength insulated radio frequency coaxial cable, including inner conductor 1, insulating layer 2, shielding layer 3, inner sheath layer 4, composite armor layer 5 and outer sheath layer 6, the inner conductor 1 outside is provided with insulating layer 2, shielding layer 3 is covered in the outside of insulating layer 2, shielding layer 3 outside is extruded and formed with inner sheath layer 4, inner sheath layer 4 outside thermal capacity has composite armor layer 5, the outside of composite armor layer 5 is extruded and formed with outer sheath layer 6.
[0021] Further, composite armor layer 5 is ingeniously arranged between inner sheath layer 4 and outer sheath layer 6, which is not a single structure, but a complete armor layer composed of several carefully designed composite armor wires. These composite armor wires are not arranged randomly, but are tightly wound in a spiral manner outside the inner sheath layer 4. Such design not only enhances the mechanical strength of the cable, but also makes it more flexible and can adapt to various complex installation environments.
[0022] Further, as the basic unit of composite armor layer 5, each composite armor wire is composed of a thermal capacity layer 51 and a metal wire bundle 52. The metal wire bundle 52 is the core, which is made of several metal wires with the same diameter through precise twisting process, ensuring the strength and stability of the armor wire. The thermal capacity layer 51 tightly wraps the outside of the metal wire bundle 52 like a protective shell, and is tightly combined with the metal wire bundle 52 through extrusion molding process, further enhancing the overall performance of the armor wire.
[0023] Further, in the manufacturing process of the composite armor wire, the thermal capacity layer 51 not only closely combines with the metal wire bundle 52, but also is thermally coupled with the adjacent thermal capacity layers 51 by heating. This unique combination not only makes the composite armor layer 5 form a tight whole, but also enhances the bonding force between it and the inner sheath layer 4. When the cable is subjected to external stress, the composite armor layer 5 can effectively disperse and absorb these stresses, thereby protecting other structures inside the cable from damage.
[0024] Further, the cross section of the thermal capacity layer 51 is designed to be circular. This design not only makes the composite armor wire more beautiful and neat, but more importantly, after the adjacent thermal capacity layers 51 combine with each other, they will naturally form spiral-shaped grooves between them. These grooves not only increase the surface area of the cable, which is beneficial to heat dissipation and ventilation, but also to some extent, improve the flexibility of the cable. This makes the cable more smooth when bending and twisting, and less likely to crack or break.
[0025] The production process of the high mechanical strength insulating radio frequency coaxial cable includes the following key steps: first, prepare the required inner conductor 1 material, such as high-conductivity copper or copper alloy, and perform necessary pretreatment, such as cleaning and rust removal, to ensure that the surface is clean and free of impurities. Then, high-performance insulating materials such as polyethylene and polytetrafluoroethylene are uniformly extruded on the outside of the inner conductor 1 by an extruder to form a continuous insulating layer 2, and quality testing is performed to ensure that the thickness is uniform, bubble-free and crack-free. Then, shielding materials such as copper strips, copper foils or woven meshes are wrapped around the insulating layer 2 to ensure firmness and reliability, and quality testing is performed to ensure continuity, conductivity and shielding effect. Subsequently, wear-resistant and corrosion-resistant high-molecular materials are uniformly extruded on the outside of the shielding layer 3 by an extruder to form a protective inner sheath layer 4, and quality testing is performed. Next, the composite armor layer 5 is prepared, including preparing the metal wire bundle 52, extruding the thermal capacity material to form the thermal capacity layer 51, tightly winding it around the inner sheath layer 4 in a spiral manner, heating to make the thermal capacity layers 51 combine with each other and firmly combine with the inner sheath layer 4, and quality testing is performed. Then, weather-resistant and wear-resistant high-molecular materials are uniformly extruded on the outside of the composite armor layer 5 by an extruder to form a protective outer sheath layer 6, and quality testing is performed. Finally, the produced cable is subjected to comprehensive quality testing, including electrical performance, mechanical performance, environmental adaptability and other tests, and is graded and marked according to the test results, and the qualified cable is packaged and stored for subsequent transportation and use.
[0026] The technical scheme disclosed in the utility model, or the technical scheme designed by the person skilled in the art based on the technical scheme of the utility model, and the similar technical scheme achieving the above technical effects, all fall within the protection scope of the utility model.
Claims
1. A high mechanical strength dielectric radio frequency coaxial cable, characterized by, The cable comprises an inner conductor (1), an insulation layer (2), a shielding layer (3), an inner sheath layer (4), a composite armor layer (5) and an outer sheath layer (6), the inner conductor (1) is externally provided with the insulation layer (2), the shielding layer (3) is coated outside the insulation layer (2), the inner sheath layer (4) is extrusion formed outside the shielding layer (3), the composite armor layer (5) is heat contained outside the inner sheath layer (4), and the outer sheath layer (6) is extrusion formed outside the composite armor layer (5).
2. A high mechanical strength, dielectric, radio frequency coaxial cable as defined in Claim 1, wherein: The composite armor layer (5) is located between the inner sheath layer (4) and the outer sheath layer (6), and the composite armor layer (5) is an armor layer composed of a plurality of composite armor wires, and the plurality of composite armor wires are wound outside the inner sheath layer (4) in a spiral manner.
3. A high mechanical strength, dielectric, radio frequency coaxial cable as defined in Claim 2, wherein: The composite armor wire of the composite armor layer (5) comprises a heat containing layer (51) and a metal wire bundle (52), the heat containing layer (51) is extrusion formed outside the metal wire bundle (52), and the metal wire bundle (52) is a wire formed by twisting a plurality of metal wires with the same diameter.
4. A high mechanical strength, dielectric, radio frequency coaxial cable as defined in Claim 3, wherein: The heat containing layer (51) of the composite armor wire is heat contained together by heating, and is heat contained together with the inner sheath layer (4) on the inner side.
5. A high mechanical strength, dielectric, radio frequency coaxial cable as defined in Claim 4, wherein: The heat containing layer (51) is circular in cross section, and a spiral groove is naturally formed between the heat containing layers (51) after combination.