CN213546004U - 5G intelligent control photoelectric hybrid cable - Google Patents

Abstract

The utility model discloses a 5G intelligent control photoelectric hybrid cable, the cable core of which comprises three data cable units, an optical cable unit and a control cable unit, wherein the three data cable units and the control cable unit are arranged around the periphery of the optical cable unit; the cable core is sequentially coated with a main shielding layer, an outer sheath layer and a wear-resistant layer from inside to outside; a paired wire shielding layer is coated outside two twisted insulated single wires of the data cable unit; the optical cable unit comprises a fiber core and an optical fiber outer protective layer, an aramid yarn reinforcing piece is filled between a cladding and the optical fiber outer protective layer, and an optical fiber waterproof layer is coated on the optical fiber outer protective layer; the control cable unit has the stranded conductor insulating layer including two insulating heart yearns, the cladding on the stranded copper conductor of every insulating heart yearn, is provided with the cladding on two insulating heart yearns and has the control unit shielding layer, the cladding has the control unit oversheath on the control unit shielding layer. The hybrid cable can simultaneously transmit optical signals, electrical signals and electrical energy.

Description

5G intelligent control photoelectric hybrid cable

Technical Field

The utility model relates to a photoelectric mixed cable technical field especially relates to a photoelectric mixed cable of ability simultaneous transmission light signal, signal of telecommunication and electric energy.

Background

With the advance of 5G network construction, the use experience of high access rate and zero time delay of optical fibers is provided for users, and high-quality services of multiple special scenes such as the connecting capacity, ultrahigh flow density, ultrahigh connection data density, ultrahigh mobility and the like of billions of devices need to be assisted by a higher-density base station. The original 4G base station can not meet the coverage requirement, and weak coverage or blind areas can occur particularly in places such as streets and shops with large population and vehicle traffic. Through increasing macro base station or building indoor distribution network structure, nevertheless because its far-end equipment power supply adopts the mode of closely leading to connect the alternating current more thereby causing the construction in-process to face heavy difficulties such as far-end electricity-taking dispersion, commercial power take unstability.

Because the photoelectric composite cable has the capacity of transmitting electric signals and optical signals at the same time, the problem of difficult power supply of the base station can be well solved. In addition, the temperature of the wire core can be monitored by using the temperature-sensitive attenuation of the optical fiber. With the progress of science and technology, the variety of photoelectric composite cables is more and more, and the application is gradually expanded. The optical cable is suitable for large-span submarine laying; the construction of rural access networks, the need for equipment to provide power to remote locations, and the communication in special areas where equipment maintenance is difficult. Meanwhile, the method is also very suitable for being used as a transmission medium to establish an access network, so that network integration of telephone, data, television and electric power is realized, and the types and application occasions of the photoelectric hybrid cable are continuously expanded along with the improvement of a 4G network, the promotion of a 5G network and the intelligent engineering construction.

In recent years, with the further development of the mobile internet. More and more mobile devices access the network, and various applications and services emerge endlessly, and mobile data traffic is increasing explosively. Meanwhile, the requirement of people on the communication speed is higher and higher, and the communication speed becomes an important index influencing the user experience. Although the coverage of the 4G macro base station mobile communication network is relatively perfect, the existing 4G macro base station cannot meet the increasing requirements for mobile data traffic and communication speed due to the defects of the macro base station.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a 5G intelligent control photoelectricity hybrid cable is provided, this hybrid cable can transmit light signal, signal of telecommunication and electric energy simultaneously to realize that a cable is multi-purpose, reduce the wiring space, practice thrift the cable integrated cost.

In order to solve the technical problem, the 5G intelligent control photoelectric hybrid cable comprises a cable core, wherein the cable core comprises three data cable units, an optical cable unit and a control cable unit, and the three data cable units and the control cable unit are arranged around the periphery of the optical cable unit; the cable core is sequentially coated with a main shielding layer, an outer sheath layer and a wear-resistant layer from inside to outside; the twisted pair group of the data cable unit is formed by twisting two insulated single wires, each insulated single wire comprises a copper conductor, an insulated inner skin layer, an insulated foaming layer and an insulated outer skin layer are sequentially coated on the copper conductor, and a pair wire shielding layer is coated outside the two twisted insulated single wires; the optical cable unit comprises a fiber core and an optical fiber outer protective layer, a cladding is surrounded on the fiber core, an aramid yarn reinforcing piece is filled between the cladding and the optical fiber outer protective layer, and an optical fiber waterproof layer is coated on the optical fiber outer protective layer; the control cable unit comprises two insulation core wires, a stranded conductor insulation layer is coated on a stranded copper conductor of each insulation core wire, a control unit shielding layer is coated on the two insulation core wires, and a control unit outer sheath is coated on the control unit shielding layer.

Preferably, the pair of wire shielding layers and the control unit shielding layer are wrapped by aluminum foils, and the total shielding layer is woven by tinned copper wires.

Preferably, the copper conductor is a solid copper conductor having a diameter of 0.55 to 0.58mm and an elongation at break of 23.5 to 25.5%.

Preferably, the cable unit comprises two fiber cores, a corresponding cladding (22) is surrounded outside each fiber core, and the aramid yarn reinforcing members are formed by filling aramid yarns.

Preferably, the optical fiber waterproof layer is formed by winding a semi-conductive water-blocking tape, and the winding overlapping rate of the semi-conductive water-blocking tape is 20% -25%.

Preferably, the optical fiber outer protective layer is formed by extruding and wrapping low-smoke halogen-free flame-retardant polyethylene.

Preferably, the total shielding layer is woven by tinned copper wires, and the weaving density is 82%.

Preferably, the outer jacket layer is formed by extruding and wrapping low-smoke halogen-free flame-retardant materials, and the wear-resistant layer is made of high-molecular polyethylene materials.

In the structure, the cable core comprises three data cable units, one optical cable unit and one control cable unit, so that a cable capable of simultaneously transmitting optical signals and electric signals and transmitting electric energy is provided, one cable is multipurpose, the complex cable structure caused by separately installing optical fiber cables, data cables and power cables is eliminated, and the defects of high manufacturing and installing cost are overcome; meanwhile, the integrated cable structure greatly reduces the occupied space for cable installation. The three data cable units and the control cable unit are arranged around the periphery of the optical cable unit in a surrounding manner, so that the optical cable unit is positioned in the middle of the cable core, the optical fiber unit is prevented from being directly pressed by side pressure, and the increase of optical loss caused by external force pressing micro bending is effectively inhibited; the cable core is coated with the total shielding layer, the outer sheath layer and the wear-resistant layer in sequence, so that the problem of electromagnetic interference inside and outside the cable is effectively solved, the overall anti-electromagnetic interference capacity of the cable is greatly improved, the wear resistance and the mechanical performance of the cable are improved, and the cable is more suitable for various application environments. The aramid yarn reinforcing piece is filled in the optical fiber outer protective layer, so that the mechanical properties of tensile strength, compression resistance and the like of the optical fiber are enhanced, a reliable and stable protection function is formed, particularly, the optical fiber waterproof layer is coated outside the optical fiber protective layer, the invasion of moisture to the inside of the optical fiber is strictly prevented, the increase of optical fiber attenuation is effectively prevented, and the structure forms a tensile and waterproof optical fiber cable structure, so that the hybrid cable is more suitable for complex use environments.

Drawings

The following describes the 5G intelligent control photoelectric hybrid cable in accordance with the present invention with reference to the accompanying drawings and the following detailed description.

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the intelligent control photoelectric hybrid cable of the present invention in fig. 5G;

fig. 2 is a schematic cross-sectional structure view of the optical cable unit in the embodiment of fig. 1.

In the figure, 1-data cable unit, 11-copper conductor, 12-insulating inner skin layer, 13-insulating foaming layer, 14-insulating outer skin layer, 15-pair line shielding layer, 2-optical cable unit, 21-fiber core, 22-cladding, 23-aramid yarn reinforcement, 24-optical fiber outer sheath layer, 25-optical fiber waterproof layer, 3-control cable unit, 31-stranded copper conductor, 32-stranded conductor insulating layer, 33-control unit shielding layer, 34-control unit outer sheath, 4-total shielding layer, 5-outer sheath layer, and 6-wear-resistant layer.

Detailed Description

As shown in fig. 1, the 5G intelligent control photoelectric hybrid cable has a cable core including a cable unit 2 located at the center thereof, three data cable units 1 and one control cable unit 3 arranged around the cable unit 2, wherein the cabling pitch of the cable core is 480mm, the tension of the cable is uniform, and the deviation of the cabling pitch is controlled within ± 5 mm. The cable core is coated with a total shielding layer 4, an outer sheath layer 5 and a wear-resistant layer 6 from inside to outside in sequence. The total shielding layer 4 is woven by tinned copper wires, and the weaving density is 82%. The outer sheath layer 5 is formed by extruding and wrapping low-smoke halogen-free flame-retardant cable materials, and the thickness of the outer sheath layer is 0.9mm, preferably controlled between 0.8mm and 1.1 mm. The wear-resistant layer 6 is made of a high-molecular polyethylene material.

The three data cable units 1 positioned on the periphery of the optical cable unit 2 have the same structure, each data cable unit 1 comprises a pair of twisted wire groups, each pair of twisted wire groups is formed by twisting two insulated single wires, the twisting pitch range of the pair of twisted wire groups is 20-38 mm, and the tolerance range of the pitch of the pair of twisted wires is controlled within +/-0.2 mm; the insulated single wire comprises a copper conductor 11, wherein the copper conductor 11 is a solid copper conductor with the diameter of 0.55-0.58 mm, and the elongation at break of the conductor is 23.5% -25.5%; an insulating inner skin layer 12, an insulating foaming layer 13 and an insulating outer skin layer 14 are sequentially coated on the copper conductor 11; the thickness of the insulating inner skin layer 12 is 0.02mm, the thickness of the insulating outer skin layer 14 is 0.05mm, and the thickness of the insulating foaming layer 13 is 0.38mm by adopting a physical foaming structure; the insulation concentricity is not less than 98%. Each pair of twisted wire groups is coated with a pair wire shielding layer 15, the pair wire shielding layer 15 is formed by wrapping an aluminum foil with the thickness of 0.06mm, and the coverage rate of wrapping the aluminum foil is 110% -120%.

The control cable unit 3 located at the periphery of the optical cable unit 2 comprises two insulation core wires, a stranded copper conductor 31 of each insulation core wire is wrapped with a stranded conductor insulation layer 32, the stranded copper conductor 31 is formed by stranding 49 soft round copper wires with the diameter of 0.25mm into a conductor of 2.5mm2, and the stranded conductor insulation layer 32 is formed by extruding and wrapping low-smoke halogen-free flame-retardant polyethylene cable materials. A control unit shielding layer 33 is coated on the two insulation core wires, and a control unit outer sheath 34 is coated on the control unit shielding layer 33; the control unit shielding layer 33 is formed by wrapping an aluminum foil with the thickness of 0.06mm, and the coverage rate of the wrapped aluminum foil is 110-120%.

As shown in fig. 2, the optical cable unit 2 includes two fiber cores 21, a corresponding cladding 22 is surrounded outside each fiber core 21, an optical fiber outer protective layer 24 is disposed outside the four fiber cores 21, an aramid yarn reinforcement 23 is filled between a gap between the cladding 22 and the optical fiber protective layer 24, and the aramid yarn reinforcement 23 is formed by filling aramid fibers. The optical fiber outer protective layer 24 is formed by extruding and wrapping low-smoke halogen-free flame-retardant polyethylene, the optical fiber outer protective layer 24 is coated with an optical fiber waterproof layer 25, the optical fiber waterproof layer 25 is formed by wrapping a semi-conductive water-blocking tape, and the wrapping overlapping rate is 20% -25%.

Claims (8)

1. The utility model provides a 5G intelligent control photoelectricity hybrid cable, includes the cable core, its characterized in that: the cable core comprises three data cable units (1), an optical cable unit (2) and a control cable unit (3), and the three data cable units (1) and the control cable unit (3) are arranged around the periphery of the optical cable unit (2); the cable core is sequentially coated with a total shielding layer (4), an outer sheath layer (5) and a wear-resistant layer (6) from inside to outside; the twisted pair group of the data cable unit (1) is formed by twisting two insulated single wires, each insulated single wire comprises a copper conductor (11), an insulated inner skin layer (12), an insulated foaming layer (13) and an insulated outer skin layer (14) are sequentially coated on the copper conductor (11), and a pair wire shielding layer (15) is coated outside the two twisted insulated single wires; the optical cable unit (2) comprises a fiber core (21) and an optical fiber outer protective layer (24), a cladding (22) is surrounded on the fiber core (21), an aramid yarn reinforcing piece (23) is filled between the cladding (22) and the optical fiber outer protective layer (24), and an optical fiber waterproof layer (25) is coated on the optical fiber outer protective layer (24); the control cable unit (3) comprises two insulation core wires, wherein a stranded conductor insulation layer (32) is coated on a stranded copper conductor (31) of each insulation core wire, a control unit shielding layer (33) is coated on the two insulation core wires, and a control unit outer sheath (34) is coated on the control unit shielding layer (33).

2. The 5G intelligent control photoelectric hybrid cable according to claim 1, wherein: the paired line shielding layer (15) and the control unit shielding layer (33) are wrapped by aluminum foils, and the total shielding layer (4) is woven by tinned copper wires.

3. The 5G intelligent control photoelectric hybrid cable according to claim 1, wherein: the copper conductor (11) is a solid copper conductor, the diameter of the solid copper conductor is 0.55-0.58 mm, and the elongation at break of the solid copper conductor is 23.5% -25.5%.

4. The 5G intelligent control photoelectric hybrid cable according to claim 1, wherein: the optical cable unit (2) comprises two fiber cores (21), corresponding cladding layers (22) are wrapped outside each fiber core (21), and the aramid yarn reinforcing pieces (23) are formed by filling aramid yarns.

5. The 5G intelligent control photoelectric hybrid cable according to claim 1 or 4, wherein: the optical fiber waterproof layer (25) is formed by winding a semi-conductive water-blocking tape, and the winding overlapping rate of the semi-conductive water-blocking tape is 20% -25%.

6. The 5G intelligent control photoelectric hybrid cable according to claim 1 or 4, wherein: the optical fiber outer protective layer (24) is formed by extruding and wrapping low-smoke halogen-free flame-retardant polyethylene.

7. The 5G intelligent control photoelectric hybrid cable according to claim 1, wherein: the total shielding layer (4) is formed by weaving tinned copper wires, the weaving density is more than 80%, and 82% is preferred.

8. The 5G intelligent control photoelectric hybrid cable according to claim 1, wherein: the outer sheath layer (5) is formed by extruding and wrapping low-smoke halogen-free flame-retardant materials, and the wear-resistant layer (6) is made of high-molecular polyethylene materials.

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