CN216697939U

CN216697939U - Easily tear mixed cable of easy poling FTTR photoelectricity

Info

Publication number: CN216697939U
Application number: CN202122885537.9U
Authority: CN
Inventors: 顾仲倩; 符剑松; 谢华
Original assignee: Yangtze Optical Fibre and Cable Co Ltd
Current assignee: Yangtze Optical Fibre and Cable Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-06-07
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses an easily-torn and easily-penetrated FTTR photoelectric hybrid cable which comprises an optical unit, an outer sheath, an FRP self-supporting piece and positive and negative electrode electric unit groups, wherein the outer sheath is arranged on the optical unit; the outer sheath is square in section, arc inner grooves are respectively arranged at four right angles of the square, a V-shaped tearing groove is formed in the middle of each arc inner groove in the axial direction of the hybrid cable, and the hybrid cable is divided into four parts by the four V-shaped tearing grooves: the upper self-supporting part, the lower part are optical cable parts, and the left and right parts are left and right cable parts; the FRP self-supporting piece is arranged in the self-supporting part, the optical cable part is internally provided with an optical unit, and the left and right cable parts are internally provided with a positive electrode electric unit and a negative electrode electric unit. The photoelectric hybrid cable has excellent performance in all aspects, can simultaneously communicate high-speed communication signals and electricity to a use terminal, has a unique structure, ensures that the photoelectric cable has excellent performance in the aspects of pipe penetration and tensile strength, and breaks through the last section of channel from a high-speed network to the terminal.

Description

Easily tear mixed cable of easy poling FTTR photoelectricity

Technical Field

The utility model relates to a communication cable, in particular to an optical-electrical hybrid cable.

Background

With the rapid development of the network era, new services such as VR, cloud games, 4K high-definition video, online education and the like are increasingly popularized, and the progress of digitization and intellectualization in the whole society is accelerated, so that the fixed network is further developed and gradually upgraded to the F5G gigabit optical network era.

However, to really bring the extreme gigabit broadband experience to the user, the industry still needs to solve a plurality of problems, for example, the actual measurement rate of the gigabit broadband package is only hundreds of megabits, the Wi-Fi signal is continuously brushed after passing through the wall, the indoor network wiring is not beautiful, unreliable, difficult to upgrade, and the like, which not only makes the user experience discount greatly, affects the brand reputation and income of the operator, but also forms a bottleneck of belt speed, and seriously hinders the rapid development of the broadband service. In order to solve these problems, currently, indoor broadband is spanning from FTTH to F5G FTTR era, and one optical fiber is further extended downwards to each room, each desktop, and each machine, so as to bring five-star broadband experience to users, and bring a new development opportunity to the industry. However, the existing FTTR optical cable still needs to utilize the original laying pipeline due to part of construction environments, and the construction pipe penetration is difficult. In addition, the current terminal service environment often does not have a power panel, and the electric unit part needs to be continuously extended to the terminal position, so that the construction difficulty is greatly increased, and the construction efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a photoelectric hybrid cable with excellent performances in all aspects, which can simultaneously communicate high-speed communication signals and electricity to a use terminal.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides an easily tear mixed cable of easy poling FTTR photoelectricity, includes an optical unit and low friction low smoke and zero halogen oversheath, still includes: the FRP (fiber reinforced composite) self-supporting piece and the positive and negative electrode electric unit groups comprise positive electrode electric units and negative electrode electric units respectively;

the outer sheath is characterized in that the main body of the outer sheath is square, arc-shaped inner grooves are respectively arranged at four right angles of the square, a V-shaped tearing groove is formed in the middle of each arc-shaped inner groove in the axial direction of the hybrid cable, and the hybrid cable is divided into four parts by the four V-shaped tearing grooves: the upper part is a self-supporting part, the lower part is an optical cable part, and the left part and the right part are a left cable part and a right cable part;

the FRP self-supporting piece is arranged in the self-supporting part, the optical unit is arranged in the optical cable part, and the positive electrode electric unit and the negative electrode electric unit are arranged in the left cable part and the right cable part.

Further, the optical unit is a single-core cable optical unit. The optical unit comprises a tightly-packed optical fiber, an aramid fiber reinforcing piece layer and an optical unit sheath which are sequentially arranged from inside to outside. The outer diameter of the tightly packaged optical fiber is 0.9mm, the outer diameter of the single-core cable optical unit is 2.0mm, the outer diameter of the FRP self-supporting piece is 2.0mm, and the outer diameters of the positive electrode electric unit and the negative electrode electric unit are both 2.0 mm.

Further, the positive electrode electric unit and the negative electrode electric unit are both structurally composed of an oxygen-free copper conductor inside and a conductor insulating layer wrapping the conductor insulating layer outside. The oxygen-free copper conductors are a group of 0.75mm²And (4) conducting wires.

The FTTR photoelectric hybrid cable easy to tear and penetrate is unique in structure, The cross-sectional graph is somewhat like a four-corner dart, The hybrid cable is divided into a self-bearing part, an optical cable part and a left cable part and a right cable part through The V-shaped tearing groove, The structure is balanced and reasonable, The FTTR cable (Fiber to The Room, The optical cable reaches a far-end node) obtains good self-bearing performance and has certain overhead capacity, and meanwhile, The cable is powered by The left cable unit and The right cable unit, so that The complicated engineering of additionally arranging an AP panel in a Room is avoided.

The low-friction low-smoke halogen-free outer sheath is used for the hybrid cable, and meanwhile, the design of the unique section shape of the outer sheath is combined, so that the contact area and the friction force between the outer sheath and the inner wall of the pipe penetrating pipeline are obviously reduced, and the hybrid cable is easy to construct.

The four arc-shaped inner grooves and the four V-shaped tearing grooves of the hybrid cable enable the optical and electric units and the self-supporting part to be stripped and separated more easily, and construction efficiency is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of an easy-tear easy-penetration tube FTTR hybrid optical cable of the present invention.

In the figure:

1. outer sheath 101, arcuated inner groove

102. V-shaped tearing groove 2 self-supporting piece

3. Positive and negative electrode electric unit group 301, oxygen-free copper conductor

302. Conductor insulation layer 4, tight-packed optical fiber

5. Aramid fiber reinforcement layer 6 and optical unit sheath

Detailed Description

The utility model is further described below with reference to the figures and examples.

Fig. 1 shows an easily tear mixed cable of FTTR photoelectricity of easy poling, including an optical unit and low friction low smoke and zero halogen oversheath 1, still includes: the FRP (fiber reinforced composite) self-supporting piece 2 and the positive and negative electrode electric unit groups 3, wherein the positive and negative electrode electric unit groups 3 comprise a positive electrode electric unit and a negative electrode electric unit respectively. The outer sheath 1 is made of a low-friction sheath material to ensure the smoothness of the optical cable in the pipe penetrating process, the friction coefficient mu can be less than 0.12, and the low-smoke halogen-free sheath can ensure that the optical cable has good flame retardant property.

The outer sheath 1 is provided with a square main body, arc-shaped inner grooves 101 are respectively arranged at four right angles of the square main body, a V-shaped tearing groove 102 is arranged in the middle of each arc-shaped inner groove 101 in the axial direction of the hybrid cable, and the hybrid cable is divided into four parts by the four V-shaped tearing grooves 102: the upper part is a self-supporting part, the lower part is an optical cable part, and the left and right parts are left and right cable parts.

The FRP self-supporting piece 2 is arranged in the self-supporting part, and the outer diameter is 2.0 mm.

Set up in optical cable portion the light unit, the light unit is single core cable light unit, the light unit includes from inside to outside tight package optic fibre 4, aramid fiber reinforcement layer 5 and the light unit sheath 6 that sets up in proper order, and aramid fiber reinforcement layer 5 has further increased the tensile properties of optical cable. The outer diameter of the tightly-packed optical fiber 4 is 0.9mm, the outer diameter of the single-core cable optical unit is 2.0mm, the outer diameters of the positive electrode electric unit and the negative electrode electric unit are both 2.0mm, and the performance and the size of the photoelectric mixed cable obtained in the way can be most appropriate and reasonable. The light units described above may also be used in other forms of conventional light units, depending on design and requirements.

The left cable part and the right cable part are internally provided with the positive electrode electric unit and the negative electrode electric unit. The structure of the positive electrode electric unit and the negative electrode electric unit comprises an internal oxygen-free copper conductor 301 and a conductor insulating layer 302 wrapped outside, wherein the oxygen-free copper conductor 301 is a group of 0.75mm²And (4) conducting wires. The electric unit part adopts 0.75mm²Copper wire, dc supply, maximum withstand voltage: 60V, maximum current resistance: 2A. The structure with the positive and negative electrode electric units achieves the purpose of power supply of the optical cable, and avoids the complication of additionally arranging a power supply AP panel indoors.

Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an easily tear mixed cable of easy poling FTTR photoelectricity, includes an optical unit and low friction low smoke and zero halogen oversheath, its characterized in that still includes: the FRP self-supporting piece and the positive and negative electrode electric unit groups comprise positive electrode electric units and negative electrode electric units respectively;

2. The hybrid optical-electrical cable of claim 1, wherein: the optical unit is a single-core cable optical unit.

3. The hybrid optical-electrical cable of claim 2, wherein: the optical unit comprises a tightly-packed optical fiber, an aramid fiber reinforcing piece layer and an optical unit sheath which are sequentially arranged from inside to outside.

4. The hybrid optical-electrical cable of claim 3, wherein: the outer diameter of the tightly packaged optical fiber is 0.9mm, the outer diameter of the single-core cable optical unit is 2.0mm, the outer diameter of the FRP self-supporting piece is 2.0mm, and the outer diameters of the positive electrode electric unit and the negative electrode electric unit are both 2.0 mm.

5. The opto-electric hybrid cable of any one of claims 1 to 4 wherein: the structure of the positive electrode electric unit and the negative electrode electric unit comprises an internal oxygen-free copper conductor and a conductor insulating layer wrapped outside.

6. The hybrid optical-electrical cable of claim 5, wherein: the oxygen-free copper conductors are a group of 0.75mm²And (4) conducting wires.