Photoelectric composite optical cable for 5G + optical fiber fixed network

Abstract

The photoelectric composite optical cable comprises a cable core layer, a waterproof layer, a shielding layer and a protective layer which are arranged from inside to outside, a central reinforcing member, an optical cable and three power lines are arranged in the cable core layer, the cable core layer is filled with a water-blocking medium, the waterproof layer comprises a water-blocking tape, the shielding layer comprises a graphene tape, the protective layer comprises an outer sheath, and the outer sheath is filled with a water-blocking medium. The composite optical cable provided by the utility model is provided with the power line, can realize integration of communication and power supply, reduces the manufacturing cost, has excellent bending performance and good tensile and side pressure resistant performance, adopts the graphene tape as the shielding layer, and creates a closed electromagnetic space by utilizing the extremely low conductive resistance and extraordinary absorption capability of graphene, so that the shielding performance of the composite optical cable is improved. According to the utility model, electromechanical noise can be converted into heat without generating inductive current, secondary interference is eliminated, the influence of any external interference signal is avoided, and the quality and the service life of network video and digital transmission are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ship communication, and in particular to an optoelectronic composite optical cable for a 5G+optical fiber fixed network. Background Art

[0002] In the "dual gigabit" era of "5G+optical fiber fixed network", the network's demand for wiring systems has become more diversified. Optical-electrical hybrid cables integrate optical fiber, power lines and other functions to achieve integration of communication and power supply, which will play an increasingly important role in base stations, high-definition video, AR / VR, telemedicine, industrial manufacturing automation, and modern logistics management. At the same time, due to the diversity of its functions, the complexity of the cable structure is determined. The optical-electrical composite optical cable used for 5G+optical fiber fixed network has the following features: small size, light weight, small footprint, high optical fiber transmission efficiency, strong anti-electromagnetic interference ability, long-distance POE transmission, reduced cost, superior bending performance and good tensile and lateral pressure resistance. However, as long as there is a reasonable structural design, the functions of the composite cable can be better met and realized, while meeting the manufacturing standards, the manufacturing cost can be reduced, and the benefits can be maximized. Utility Model Content

[0003] The utility model mainly solves the above-mentioned technical problems and provides an optoelectronic composite optical cable for 5G+optical fiber fixed network.

[0004] In order to solve the above-mentioned technical problems, the utility model mainly adopts the following technical solutions:

[0005] The utility model discloses an optoelectronic composite optical cable for 5G+ optical fiber fixed network, comprising a cable core layer, a waterproof layer, a shielding layer and a protective layer which are sequentially distributed from the inside to the outside, wherein the cable core layer is provided with a central reinforcement, an optical cable and three power lines, the cable core layer is filled with a water-blocking medium, the waterproof layer comprises a water-blocking tape, the shielding layer comprises a graphene tape, the protective layer comprises an outer sheath, a tear rope is provided on the connecting surface of the graphene tape and the outer sheath, the composite optical cable has its own power line, is small in size, light in weight, has high optical fiber transmission efficiency, can realize the integration of communication and power supply, reduces manufacturing cost, has strong anti-electromagnetic interference capability, can perform long-distance POE transmission, has superior bending performance and good tensile and lateral pressure resistance, and at the same time, adopts a graphene tape as a shielding layer, utilizes the extremely low conductive resistance and extraordinary absorption capacity of the graphene tape, creates a closed electromagnetic space, can convert electromechanical noise into heat without generating inductive current, eliminates secondary interference, and will not be affected by any external interference signal, thereby ensuring the quality and service life of network video and digital transmission.

[0006] Preferably, the central reinforcement is an aramid yarn reinforcement, which is located in the center of the cable core layer; the optical cable and three power lines are distributed circumferentially along the aramid yarn reinforcement and are SZ-twisted with the aramid yarn reinforcement; the water-blocking medium is a plurality of water-blocking yarns and is twisted and shaped with the central reinforcement, optical cable, and power line; the signal cable and power line in the cable core layer are SZ-twisted around the central reinforcement, which has powerful data transmission capability, low attenuation, and high tensile strength, and can ensure strong anti-interference capability of digital signal transmission; the multi-strand water-blocking yarn filled is twisted and shaped with the cable, making the composite cable more pressure-resistant and more flexible.

[0007] Preferably, the power cord is a plurality of low-resistance oxygen-free soft copper wires covered with a PVC insulation layer, and the plurality of oxygen-free soft copper wires have the characteristics of low resistivity, high conductivity and good flexibility.

[0008] Preferably, the surface of the oxygen-free soft copper wire is provided with a tinning layer, and the surface tinning can improve the anti-oxidation performance of the oxygen-free soft copper wire and extend the service life of the power cord.

[0009] Preferably, the optical cable comprises a bundle tube and 2-6 core optical fibers placed in the bundle tube, the bundle tube is filled with waterproof grease, and adopts micro-optical fiber communication, has strong data transmission capability, small attenuation, good anti-interference, and stable high and low temperature performance.

[0010] Preferably, the outer sheath is a soft sheath layer having excellent bending properties and good tensile and lateral pressure resistance.

[0011] The beneficial effects of the utility model are as follows: the composite optical cable has its own power cord, is small in size, light in weight, has high optical fiber transmission efficiency, can realize the integration of communication and power supply, reduces manufacturing costs, has strong anti-electromagnetic interference ability, can carry out long-distance POE transmission, has excellent bending performance and good tensile and lateral pressure resistance, and at the same time, uses graphene tape as a shielding layer, utilizes the extremely low conductive resistance and extraordinary absorption capacity of the graphene tape to create a closed electromagnetic space, which can convert electromechanical noise into heat without generating inductive current, eliminate secondary interference, and will not be affected by any interference signals from external sources, thereby ensuring the high quality and long life of network video and digital transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the figure, 10. central reinforcement member, 20. optical cable, 201. bundle tube, 202. optical fiber, 203. waterproof paste, 30. power cord, 301. soft copper wire, 302. PVC insulation layer, 40. water-blocking medium, 50. water-blocking tape, 60. graphene tape, 70. outer sheath, and 80. tear rope. DETAILED DESCRIPTION

[0014] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0015] Embodiment: This embodiment is an optoelectronic composite optical cable for 5G+ optical fiber fixed network, such as Figure 1 As shown, it includes a cable core layer, a waterproof layer, a shielding layer and a protective layer which are sequentially distributed from the inside to the outside. The cable core layer is designed with a central reinforcement member 10, an optical cable 20 and three power lines 30, and is filled with a water-blocking medium 40. The optical cable includes a 2.2 mm bundle tube 201 and a 6-core micro optical fiber 202 placed in the bundle tube. The bundle tube is filled with a waterproof grease 203. The power line uses 1 square of 32*0.2 mm multi-strand low-resistance oxygen-free soft copper wire 301 covered with a 2.5 mm PVC insulation layer 302. The surface of the soft copper wire is also designed with a tinning layer. The central reinforcement member adopts aramid yarn reinforcement member and is located in the center of the cable core layer. The optical cable and three power lines are distributed along the circumference of the central reinforcement member and are twisted and shaped with the central reinforcement member SZ. The above-mentioned water-blocking medium adopts three aramid water-blocking yarns and is twisted and filled with the above-mentioned central reinforcement member, optical cable and power line. The above-mentioned waterproof layer is a water-blocking tape 50, the above-mentioned shielding layer is a graphene tape 60, and the above-mentioned protective layer includes a TPU outer sheath 70. A tear rope 80 is designed on the connecting surface of the graphene tape and the outer sheath, and finally a composite optical cable with a diameter of 6.5 mm and a power line is formed.

[0016] The main technical indicators of composite optical cable are:

[0017] 1. Attenuation characteristics: 1310nm ≤ 0.35 dB / km

[0018] 1510nm ≤ 0.30 dB∕km

[0019] 2. Working voltage: 300-500V

[0020] 3. Tensile strength: Fiber strain ≤ 0.2% under long-term tensile force of 100N

[0021] 4. Cable outer diameter: 6.5±0.20mm

[0022] 5. Flattening: Additional attenuation ≤ 0.03dB under long-term pressure of 1000N / 100m

[0023] 6. Repeated bending: load 20N, bending radius 30H, 300 times

[0024] The residual additional attenuation after the test is ≤0.4.

[0025] In the description of the present utility model, technical terms such as "upper", "lower", "front", "back", "left", "right", "longitudinal", "horizontal", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing and understanding the technical scheme of the present utility model. The above description does not limit the present utility model, and the present utility model is not limited to the examples described above. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present utility model should be deemed to be within the scope of protection of the present utility model.

Claims

1. An optoelectronic composite optical cable for 5G+ optical fiber fixed network, characterized in that: The invention comprises a cable core layer, a waterproof layer, a shielding layer and a protective layer which are sequentially arranged from the inside to the outside, wherein the cable core layer is provided with a central reinforcement member (10), an optical cable (20) and three power cables (30), the cable core layer is filled with a water-blocking medium (40), the waterproof layer comprises a water-blocking tape (50), the shielding layer comprises a graphene tape (60), the protective layer comprises an outer sheath (70), and a tear cord (80) is provided on the connection surface between the graphene tape and the outer sheath.

2. The optoelectronic composite optical cable for 5G+ optical fiber fixed network according to claim 1, characterized in that: The central reinforcement member (10) is an aramid yarn reinforcement member, which is located in the center of the cable core layer; the optical cable (20) and three power lines (30) are distributed along the circumference of the central reinforcement member and are SZ-twisted with the central reinforcement member to form a final shape; and the water-blocking medium (40) is a plurality of water-blocking yarns and is twisted with the central reinforcement member, the optical cable, and the power lines to form a final shape.

3. The optoelectronic composite optical cable for 5G+ optical fiber fixed network according to claim 1 or 2, characterized in that: The power line (30) is a plurality of strands of low-resistance oxygen-free soft copper wires (301) covered with a PVC insulation layer (302).

4. The optoelectronic composite optical cable for 5G+ optical fiber fixed network according to claim 3, characterized in that: The surface of the oxygen-free soft copper wire (301) is provided with a tin-plated layer.

5. The optoelectronic composite optical cable for 5G+ optical fiber fixed network according to claim 1 or 2, characterized in that: The optical cable (20) comprises a bundle tube (201) and 2-6 core optical fibers (202) placed in the bundle tube, and the bundle tube is filled with waterproof grease (203).

6. The optoelectronic composite optical cable for 5G+ optical fiber fixed network according to claim 1 or 2, characterized in that: The outer sheath (70) is a sheath layer.

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