Photoelectric composite cable

Abstract

The utility model relates to the technical field of wires and cables, in particular to a photoelectric composite cable, which comprises a wire core, an optical fiber assembly, a wrapping layer and an outer sheath, the cable cores are arranged in a circumferential mode, the optical fiber assembly is arranged in the arrangement center of the cable cores, the cable cores and the optical fiber assembly are arranged in a twisted mode, the wrapping layer is arranged on the outer sides of the cable cores and the optical fiber assembly, and the outer sheath is arranged on the outer side of the wrapping layer in an extruded mode. The optical fiber assembly comprises two optical fibers and a braid layer wrapping the outer sides of the two optical fibers, the braid layer is made of an aramid fiber material, the optical fibers are wrapped in the braid layer made of the aramid fiber material, and the whole optical fiber assembly is arranged in the arrangement center of the wire core, so that the probability that the optical fibers are excessively extruded is reduced, and the reliability of the optical fiber assembly is improved. According to the photoelectric composite cable, the technical problem that in the prior art, the optical fibers of the photoelectric composite cable are embedded in the filling strips and arranged in the gaps of the wire cores, and in a complex working environment, the optical fibers are prone to being excessively extruded to cause breakage and damage of the optical fibers is solved, and the service life of the photoelectric composite cable is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of wires and cables, and in particular to an optoelectronic composite cable. Background Technology

[0002] Laying cables and adding optical fibers are fundamental infrastructures for information and communication in modern society. Cables are primarily used to transmit electrical energy and low-frequency signals, while optical fibers offer transmission speeds far exceeding those of traditional cables, enabling them to meet the demands of high-volume, high-speed data transmission and becoming a crucial component of modern communication networks. Therefore, adding optical fibers while laying cables can significantly improve the data transmission speed and stability of the network.

[0003] Current optoelectronic composite cables consist of multiple cores, with the cores and a filler strip containing optical fibers twisted together. The surface of the filler strip is covered with a wrapping tape, an isolation sleeve is extruded over the wrapping tape, a steel strip is wrapped around the isolation sleeve, and an outer sheath is extruded over the outer surface of the steel strip.

[0004] In existing optoelectronic composite cables, the optical fiber is buried in the filler strip and placed in the gap of the wire core. In complex working environments, the optical fiber is easily subjected to excessive compression, causing the optical fiber to break and be damaged. Utility Model Content

[0005] The purpose of this utility model is to provide an optoelectronic composite cable to solve the technical problem in the prior art where the optical fiber is buried in the filler strip and placed in the gap of the wire core, and the optical fiber is easily subjected to excessive compression in complex working environments, causing the optical fiber to break and be damaged.

[0006] In a first aspect, the present invention provides an optoelectronic composite cable, comprising a core, an optical fiber assembly, a wrapping layer, and an outer sheath;

[0007] The wire cores are arranged in a circular pattern, the optical fiber assembly is located at the center of the arrangement of the wire cores, a plurality of the wire cores are twisted together with the optical fiber assembly, the cladding layer is located on the outside of the wire cores and the optical fiber assembly, and an outer sheath is extruded on the outside of the cladding layer.

[0008] The optical fiber assembly includes two optical fibers and a braided layer wrapped around the outside of the two optical fibers, the braided layer being made of aramid material.

[0009] Furthermore, the wire core includes a conductor and an insulating layer extruded onto the outer surface of the conductor, the insulating layer being made of perfluoroethylene propylene.

[0010] Furthermore, the optoelectronic composite cable also includes a filler rope, which is disposed in the gap between the wire core and the optical fiber assembly, and the filler rope is twisted together with the wire core and the optical fiber assembly.

[0011] Furthermore, the filling rope is made of aramid fiber material.

[0012] Furthermore, the optoelectronic composite cable also includes a shielding layer, which is disposed between the wrapping layer and the outer sheath, and the shielding layer is made of silver-plated copper wire.

[0013] Furthermore, the outer sheath is made of polyether polyurethane material, and the thickness of the outer sheath is set to 0.6 to 3 mm.

[0014] Compared with the prior art, the present invention provides an optoelectronic composite cable including a core, an optical fiber assembly, a cladding layer, and an outer sheath. The cores are arranged in a circular pattern, the optical fiber assembly is located at the center of the core arrangement, and several cores are twisted together with the optical fiber assembly. The cladding layer is located on the outside of the cores and the optical fiber assembly, and an outer sheath is extruded on the outside of the cladding layer. The optical fiber assembly includes two optical fibers and a braided layer wrapped around the two optical fibers. The braided layer is made of aramid material. By wrapping the optical fibers in the braided layer made of aramid material and placing the entire optical fiber assembly at the center of the core arrangement, the probability of the optical fibers being excessively compressed is reduced. This solves the technical problem in the prior art where the optical fibers are buried in the filler strip and placed in the gaps between the cores, making the optical fibers prone to breakage and damage due to excessive compression in complex working environments. This improves the service life of the optoelectronic composite cable. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional view of the overall structure of the optoelectronic composite cable provided in the embodiment of this utility model.

[0017] Figure label:

[0018] 100, Conductor; 200, Insulation layer; 300, Optical fiber; 400, Braided layer; 500, Filler rope; 600, Wrapping layer; 700, Shielding layer; 800, Outer sheath. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] like Figure 1 As shown, this utility model embodiment provides an optoelectronic composite cable, including a wire core, an optical fiber assembly, a cladding layer 600, and an outer sheath; the wire core is arranged in a circular pattern, the optical fiber assembly is located at the center of the wire core arrangement, the cladding layer 600 is located on the outside of the wire core and the optical fiber assembly, and an outer sheath is extruded on the outside of the cladding layer 600; the optical fiber assembly includes two optical fibers 300 and a braided layer 400 wrapped around the two optical fibers 300, the braided layer 400 being made of aramid material.

[0025] That is, the optoelectronic composite cable provided by this utility model reduces the probability of the optical fiber 300 being excessively squeezed by wrapping the optical fiber 300 in a braided layer 400 made of aramid material and setting the entire optical fiber assembly at the center of the core arrangement. This solves the technical problem in the prior art where the optical fiber 300 is buried in the filler strip and set in the gap of the core, and the optical fiber 300 is easily subjected to excessive compression in complex working environments, causing the optical fiber 300 to break and be damaged. This improves the service life of the optoelectronic composite cable.

[0026] Specifically, in this embodiment, six fiber cores are arranged circumferentially along their cross-sectional direction. The fiber optic assembly is positioned parallel to the geometric center of this core arrangement. The fiber optic assembly has two parallel optical fibers 300, with a braided layer 400 wrapped around their outer surfaces. The braided layer 400 is made of aramid fiber, which possesses good flexibility, high strength, high abrasion resistance, and tear resistance, improving the tensile strength of the cable and protecting the optical fibers 300 from damage. A cladding layer 600 is located outside the cores and the fiber optic assembly, with an outer sheath extruded onto its outer surface, further protecting the optical fibers 300 and cores. In this embodiment, the cladding layer 600 is made of polytetrafluoroethylene (PTFE), which has good flexibility, providing shaping and protection by encasing the cable.

[0027] Furthermore, the wire core includes a conductor 100 and an insulation layer 200 extruded onto the outer surface of the conductor 100, the insulation layer 200 being made of perfluoroethylene propylene.

[0028] Specifically, in this embodiment, conductor 100 is made of silver-plated copper wire stranded together. Silver-plated copper wire has excellent electrical conductivity; silver plating improves the conductivity of the copper wire, reduces resistance, and increases transmission efficiency. Silver-plated copper wire also has good thermal conductivity, making it suitable for applications operating in high-temperature environments. Silver has high thermal conductivity, effectively transferring heat. Silver also has strong oxidation and corrosion resistance; the silver plating layer effectively prevents the copper wire from being oxidized and corroded, extending its service life. In this embodiment, the cross-sectional area of ​​conductor 100 is set to 0.08 mm², and its structure consists of seven 0.12 mm silver-plated copper wires stranded together. The insulation layer 200 is polytetrafluoroethylene propylene (FEP), extruded onto the surface of conductor 100, with a thickness of 0.1–1.0 mm, which is 0.21 mm in this embodiment. The outer diameter of the insulation layer is 0.78 mm. Perfluoroethylene propylene (FEP) has high thermal stability, aging resistance, acid and alkali resistance, and flame retardancy. FEP also has good dielectric strength and insulation resistance, making it very suitable for use as an insulation material.

[0029] Furthermore, the optoelectronic composite cable also includes a filler rope 500, which is disposed in the gap between the wire core and the optical fiber assembly, and is twisted together with the wire core and the optical fiber assembly.

[0030] Specifically, the filler rope 500 consists of two strands, positioned in the gap between the wire core and the optical fiber assembly, and twisted together with the rope, wire core, and optical fiber assembly. By incorporating the filler rope 500, the optoelectronic composite cable achieves a rounded shape, thereby improving its tensile strength.

[0031] Preferably, the filler rope 500 is made of aramid fiber material.

[0032] Specifically, the filler rope 500 is made of aramid fiber material. Aramid fiber has good flexibility, high strength, and high wear resistance, which can improve the tensile strength of the optoelectronic composite cable and greatly enhance the cable's tensile strength.

[0033] Furthermore, the optoelectronic composite cable also includes a shielding layer 700, which is disposed between the wrapping layer 600 and the outer sheath, and the shielding layer 700 is made of silver-plated copper wire material.

[0034] Specifically, the shielding layer 700 is made of silver-plated copper wire braid, which can serve to shield electromagnetic interference. In this embodiment, the braiding shielding density of the shielding layer 700 is greater than 90%, preferably set to 95%, thereby ensuring the shielding effect of the shielding layer 700.

[0035] Furthermore, the outer sheath 800 is made of polyether polyurethane material, and the thickness of the outer sheath 800 is set to 0.6 to 3 mm.

[0036] Specifically, the outer sheath 800 is made of polyether polyurethane (TPU). TPU has superior scratch resistance compared to other materials, with a tensile strength greater than 25 MPa, elongation at break greater than 500%, and tear strength greater than 40 N / mm. Its excellent mechanical properties effectively protect the cable from damage. TPU also exhibits strong resistance to acids, alkalis, and oils, making it suitable for use in environments such as seawater. In this embodiment, the thickness of the outer sheath 800 is set to 1.8 mm to ensure its protective effect.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A photoelectric composite cable, characterized in that, Includes the wire core, fiber optic assembly, cladding (600), and outer sheath; The wire cores are arranged in a circular pattern, the optical fiber assembly is located at the center of the arrangement of the wire cores, the cladding layer (600) is located on the outside of the wire cores and the optical fiber assembly, and an outer sheath is extruded on the outside of the cladding layer (600). The optical fiber assembly includes two optical fibers (300) and a braided layer (400) wrapped around the outside of the two optical fibers (300), the braided layer (400) being made of aramid material.

2. The optoelectronic composite cable according to claim 1, characterized in that, The core includes a conductor (100) and an insulating layer (200) extruded onto the outer surface of the conductor (100), the insulating layer (200) being made of perfluoroethylene propylene.

3. The optoelectronic composite cable according to claim 1, characterized in that, The optoelectronic composite cable also includes a filler rope (500), which is disposed in the gap between the wire core and the optical fiber assembly, and is twisted together with the wire core and the optical fiber assembly.

4. The optoelectronic composite cable according to claim 3, characterized in that, The filler rope (500) is made of aramid fiber material.

5. The optoelectronic composite cable according to any one of claims 1-4, characterized in that, The optoelectronic composite cable also includes a shielding layer (700), which is disposed between the wrapping layer (600) and the outer sheath, and the shielding layer (700) is made of silver-plated copper wire material.

6. The optoelectronic composite cable according to any one of claims 1-4, characterized in that, The outer sheath (800) is made of polyether polyurethane material and the thickness of the outer sheath (800) is set to 0.6 to 3 mm.

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