CN211455326U - High-frequency data photoelectric hybrid cable - Google Patents

Abstract

The utility model discloses a high-frequency data photoelectric hybrid cable, which comprises an optical unit, wherein the optical unit comprises optical fibers, a reinforcement and a sheath, the optical fibers are G.657A2 tightly-sleeved optical fibers, and the reinforcement is water-blocking aramid fibers; the electric unit comprises an electric conductor and electric insulation, wherein the electric conductor is formed by twisting five types of annealed bare round copper wires; the high-frequency data cable comprises a plurality of twisted pairs, each twisted pair comprises a data conductor and a data insulation, the data conductor is a solid annealed bare round copper wire, and the data insulation is foamed polyethylene; the single-sided aluminum foil outside the twisted pair is longitudinally wrapped, the single-sided aluminum foil outside the twisted pair is wrapped, and the outer layer of the high-frequency data cable is a low-smoke halogen-free flame-retardant sheath; stranding all units into a cable, filling flame-retardant materials in gaps of the cable, wrapping a flame-retardant wrapping tape on the periphery of the cable, and extruding an outer sheath; the utility model discloses the integrated level is high, effectively reduces the sectional area, promotes to lay pipeline resource utilization, has the effect of transmission high frequency data signal, light signal, electric energy simultaneously, effectively avoids the repeated wiring.

Description

High-frequency data photoelectric hybrid cable

Technical Field

The utility model relates to a high frequency data photoelectricity hybrid cable for have the effect of transmission high frequency data signal, light signal, electric energy simultaneously, belong to cable manufacturing technical field.

Background

With the subsequent release of 5G license plates, the 5G construction is fully expanded. The density of the 5G base station is theoretically greatly improved compared with that of the 3G/4G base station. From the planning of frequency spectrums in China, the used frequency spectrums evolve towards high frequency continuously from 3G to 4G to 5G, and the currently-repeated 5G frequency bands comprise 3.5GHz for continuously covering the frequency bands and 26GHz and 40GHz millimeter wave frequency bands for covering a hot spot core area. With the continuous increase of frequency, especially in a millimeter wave frequency band, the signal diffraction capability is poor, and the coverage area of an original macro base station network is greatly reduced. The coverage of the same area is realized, the bearing is realized by a plurality of micro base stations, the density of the base stations is greatly improved, and the demand of data cables and photoelectric mixed cables matched with the base stations is increased more and more.

A data cable: the conventional 5-class, super 5-class and 6-class data cables are only suitable for gigabit Ethernet due to low transmission frequency, and cannot meet the current 5G use requirement, and the CAT 6A, CAT 7 and CAT 7A gigabit data cables with higher transmission frequency can completely meet the requirement of 5G transmission rate.

Photoelectric hybrid cable: the core optical units and the electric units are compounded in the cable, so that repeated wiring is avoided, and wiring can be conveniently and rapidly completed in a small space.

The prior art has the following defects:

1. the cable core integration level is not high, secondary repeated wiring of the optical cable and the flexible cable is avoided, but repeated wiring of the high-frequency data cable cannot be avoided, and the high-frequency data signal transmission capability is not provided.

2. 5G network coverage, little basic station demand is huge, and the original pipeline resource in many cities has been exhausted at present, and newly-increased optical cable or optical cable that 5G brought do not have the way to carry out the pipeline and lay, and the pressure of dilatation is very big.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a high frequency data photoelectricity mixes cable is provided, this cable can be fast simple and easy carry out the deployment of 5G little basic station network, realize indoor radio signal's digital cover and outdoor radio signal's intensive cover.

In order to solve the technical problem, the utility model discloses high frequency data photoelectricity hybrid cable includes:

-a light unit, which is an optical fiber, a reinforcement and a sheath in sequence from inside to outside, wherein the optical fiber is a g.657a2 tight-sleeved optical fiber, the material of the reinforcement layer is water-blocking aramid, and the sheath is preferably a low-smoke zero-halogen sheath.

-an electrical unit comprising electrical conductors stranded with annealed five types of bare round copper wires and electrical insulation, preferably extruded insulation of cross-linked polyethylene.

-a high frequency data cable comprising a plurality of twisted pairs, the twisted pairs comprising a data conductor and a data insulation, the data conductor being a solid annealed bare round copper wire, the data insulation being foamed polyethylene; the twisted pair wires are longitudinally wrapped by single-sided aluminum foils, namely, the split screens are longitudinally wrapped by the single-sided aluminum foils (aluminum surfaces face outwards), the twisted pair wires are externally wrapped by the single-sided aluminum foils in a dragging mode, namely, the main screen is pulled by the single-sided aluminum foils (aluminum surfaces face inwards), a tinned copper wire is longitudinally arranged between the split screens and the main screen to serve as a ground wire, and the outer layer of the high-frequency data cable is a low-smoke halogen-free flame-retardant sheath.

The optical unit, the electric unit and the high-frequency data cable are stranded into a cable, a flame-retardant material is filled in a side gap, the periphery of the cable is overlapped and wrapped with a flame-retardant wrapping tape, an outer sheath is extruded outside the cable core, the outer sheath material is preferably a low-smoke halogen-free flame-retardant material, and a tearing rope is longitudinally placed in the outer sheath.

The utility model discloses high frequency photoelectricity hybrid cable is by high frequency data cable, electric unit, optical unit transposition stranding, has the effect of transmission electric energy, high frequency data signal, light signal simultaneously, and the integrated level is high, light in weight, effectively avoids the repetition to lay the construction. The data cable adopts the mode of split screen + total screen, can effectively avoid the mutual interference that arouses when the power cord work between the line pair. The optical unit adopts G.657A2 tight-sleeved optical fibers and aramid fiber reinforcement, so that the sufficient tensile strength of the optical cable can be ensured, and the optical cable has good flexibility and stable performance when subjected to mechanical stress such as bending.

The utility model discloses the advantage:

1. the G.657A2 optical fiber adopted by the optical cable is bending loss insensitive optical fiber, not only has good bending performance, but also is compatible with G.652 common optical fiber, and the application range of the optical cable can be widened; adopt aramid fiber to make optical cable reinforcement, can guarantee the requirement of tensile strength when optical cable lays, uses, also satisfy the compliance when mixing the cable and laying simultaneously, when suffering mechanical stress such as bending, do benefit to the stability of optic fibre performance. The optical cable unit adopts hard LSZH (low smoke zero halogen material) as a sheath, has good shrinkage rate, mechanical property and lateral pressure resistance, and can ensure that the performance of the optical fiber is not changed due to the influence of external environment.

2. When the conventional high-frequency data cable is used independently, in order to ensure the performances of small bending radius, softness and the like, the tinned copper wire is adopted for weaving as a total shield, and a sheath with the thickness not less than 0.4mm is extruded from the outer layer, so that the effect of protecting a wire core is achieved. When using as one of them high frequency data cable unit of mixed cable, bend radius is big, and the data cable total shielding changes the aluminium foil shielding into by former tinned copper wire, and transmission performance does not have the change, satisfies and is superior to CAT 6A transmission index requirement, and the outer layer of mixed cable has low smoke and zero halogen material as the sheath simultaneously, and data cable unit sheath can extrude according to 0.2mm at minimum, satisfies the actual service environment requirement. The economic cost can be reduced by about 15 percent.

3. The sheath (outer sheath) of the mixed cable is made of flame-retardant polyolefin material. The sheath material has low temperature resistance, does not generate toxic gas during combustion, and is beneficial to environmental protection; the finished product can meet the requirement of high flame-retardant grade.

4. The conventional photoelectric hybrid cable is formed by combining an optical unit and an electric unit in one cable, can transmit electric energy and optical signals simultaneously, avoids repeated wiring, but has low cable core integration level and does not have the function of transmitting high-frequency data signals. The utility model discloses mixed cable of photoelectricity comprises high frequency data cable, optical unit, electric unit, and the integrated level is high, effectively reduces total cable sectional area, and light in weight can effectively promote and lay pipeline resource utilization, can have the effect of transmission high frequency data signal, light signal, electric energy simultaneously, effectively avoids the repeated wiring, saves construction cost.

5. The high-frequency data photoelectric hybrid cable can be used for quickly and simply deploying a 5G small base station network, and realizing digital coverage of indoor wireless signals and dense coverage of outdoor wireless signals.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic view of the present invention.

Detailed Description

As shown in fig. 1, the high frequency data opto-electric hybrid cable includes:

1. optical unit 1 (cable portion): consists of two G.657A2 tight-sleeved optical fibers, water-blocking aramid fiber reinforcement, a low-smoke halogen-free sheath or other sheath materials.

2. The number of the electric units 2 is 2: the conductor is formed by twisting five types of annealed bare round copper wires, and is made of cross-linked polyethylene extrusion molding insulation or other insulation materials.

3. High-frequency data cable 3: the split screen type low-smoke halogen-free flame-retardant cable comprises 4 twisted pairs, conductors of the twisted pairs are solid annealed bare round copper wires, an insulating material is foamed polyethylene, a split screen is longitudinally wrapped by a single-sided aluminum foil (aluminum surface faces outwards), a main screen is longitudinally wrapped by a single-sided aluminum foil (aluminum surface faces inwards), a tinned copper wire is longitudinally arranged between the split screen and the main screen and serves as a ground wire, and a low-smoke halogen-free flame-retardant sheath is arranged between the split screen.

4. Optical unit 1, 2 electric unit 2, 3 transposition stranding of high frequency data cable (constitute the cable core), and the flame retardant material 4 is filled in the side gap, and the periphery overlaps around package fire-retardant band 5.

5. A layer of low-smoke halogen-free flame retardant material 6 or other sheath materials is extruded outside the cable core, and a tearing rope with enough strength to open the sheath is longitudinally placed before the outer sheath is extruded.

The above-mentioned embodiment does not limit the utility model in any way, and all the technical solutions that adopt the mode of equivalent replacement or equivalent transform to obtain all fall within the protection scope of the utility model.

Claims (6)

1. High frequency data photoelectricity hybrid cable, its characterized in that includes:

-a light unit, which is, from inside to outside, an optical fiber, a reinforcement and a jacket, the optical fiber being a g.657a2 tight-buffered optical fiber, the reinforcement being a water-blocking aramid fiber;

-an electrical unit comprising electrical conductors and electrical insulation, the electrical conductors being stranded of annealed five types of bare round copper wires;

-a high frequency data cable comprising a plurality of twisted pairs, the twisted pairs comprising a data conductor and a data insulation, the data conductor being a solid annealed bare round copper wire, the data insulation being foamed polyethylene; the twisted pair wires are longitudinally wrapped by single-sided aluminum foil, a plurality of twisted pair wires are longitudinally wrapped by single-sided aluminum foil, and the outer layer of the high-frequency data cable is a low-smoke halogen-free flame-retardant sheath;

the optical unit, the electric unit and the high-frequency data cable are stranded into a cable, the side gap is filled with flame-retardant materials, the periphery of the cable is overlapped with the flame-retardant wrapping tape, and the cable core is extruded with the outer sheath.

2. A high-frequency data opto-electric hybrid cable according to claim 1, characterized in that: the sheath is a low-smoke halogen-free sheath.

3. A high-frequency data opto-electric hybrid cable according to claim 1, characterized in that: the electrical insulation is cross-linked polyethylene extrusion insulation.

4. A high-frequency data opto-electric hybrid cable according to claim 1, characterized in that: and a tinned copper wire ground wire is arranged outside the twisted wire.

5. A high-frequency data opto-electric hybrid cable according to claim 1, characterized in that: the outer sheath is made of low-smoke halogen-free flame-retardant material.

6. A high-frequency data opto-electric hybrid cable according to claim 1, characterized in that: the outer sheath is internally provided with a tearing rope longitudinally.

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