Photoelectric hybrid cable for micro-cluster branch

Abstract

The utility model discloses a photoelectric hybrid cable for a micro-cluster branch, which comprises a cable core main body, a wrapping tape is longitudinally wrapped outside the cable core main body, and a dry-type water-blocking material is arranged in the middle of the cable core main body; and the sheath layer is wrapped on the wrapping tape of the cable core main body so as to protect the cable core main body. The optical cable provided by the utility model is simple in structure, low in manufacturing cost, suitable for access network or home-entry use, compact in structure, light in weight, good in bending performance and convenient to lay; by adopting a dry structure, the device is clean, pollution-free and convenient to construct and use.

Description

Technical Field

[0001] The utility model relates to the field of optical communication, in particular to an optical and electrical hybrid cable for microcluster branching. Background Art

[0002] With the development and extension of communication technology, the application field of optical cables is becoming wider and wider. The optical communication technology inevitably involves the conversion of optical signals, and at the same time, the problem of power supply needs to be solved. The optical and electrical hybrid cable integrates optical fiber communication and copper wire power transmission, and solves the problems of communication and power transmission with one cable, which has obvious advantages in applications such as access networks and terminal base stations.

[0003] Generally, for the stranding of the layer-stranded cable core, to ensure the force value of the optical cable and the stability of the cable core structure, the structure is 1+5 or more, and filling ropes and the like are used to fill the structure, which increases the weight and material cost of the optical cable. This patent adopts a three-unit structure, eliminates the filling material, makes the optical cable structure more compact, reduces the weight of the optical cable, and reduces the cost of the optical cable.

[0004] Adopting dry water-blocking materials, there is no cable paste in the cable core, which is more convenient for construction and is convenient for construction and maintenance. Two parallel strengthening members are adopted in the sheath to improve the tensile performance and bending performance of the optical cable and facilitate laying. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide an optical and electrical hybrid cable for microcluster branching to solve the problems in the background art.

[0006] The optical and electrical hybrid cable for microcluster branching of the utility model is realized through the following technical solutions, including:

[0007] A cable core body, an outer wrapping tape is longitudinally wrapped outside the cable core body, and a dry water-blocking material is arranged in the middle of the cable core body;

[0008] A sheath layer, the sheath layer is wrapped on the wrapping tape of the cable core body to protect the cable core body.

[0009] As a preferred technical solution, the cable core body is composed of one microcluster optical unit and two electrical units stranded together, and the dry water-blocking material is placed between one microcluster optical unit and two electrical units.

[0010] As a preferred technical solution, the sheath layer includes a sheath main body, a steel tape layer and parallel strengthening members;

[0011] The steel tape layer is placed inside the sheath main body and contacts the wrapping tape, and the parallel strengthening members are placed on both sides inside the sheath main body.

[0012] As a preferred technical solution, the microcluster optical unit includes a loose tube and an optical fiber unit, and the optical fiber unit is an optical fiber or an optical fiber bundle.

[0013] As a preferred technical solution, the electrical unit is a single-core flexible conductor RV or RY.

[0014] As a preferred technical solution, the dry water-blocking material is water-blocking yarn or water-blocking powder.

[0015] As a preferred technical solution, the tape material is a water-blocking tape.

[0016] As a preferred technical solution, the sheath material is polyethylene or flame-retardant polyolefin.

[0017] As a preferred technical solution, the parallel strength member is a metal phosphated steel wire or a non-metallic FRP.

[0018] The beneficial effects of the present utility model are as follows:

[0019] The optical cable of the present utility model has a simple structure, low manufacturing cost of the optical cable, is suitable for use in access networks or for household use, and the optical cable has a compact structure, light weight, good bending performance, and is convenient for laying; by adopting a dry structure, it is clean and pollution-free and convenient for construction and use. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0022] Figure 2 It is a cross-sectional view of Embodiment 1 of the present utility model;

[0023] Figure 3 It is a schematic diagram of the overall structure of Embodiment 2 of the present utility model;

[0024] Figure 4 It is a cross-sectional schematic diagram of Embodiment 2 of the present utility model;

[0025] Description of the reference numerals:

[0026] 1. Electrical unit; 2. Dry water-blocking material; 3. Parallel strength member; 4. Optical fiber unit; 5. Microcluster optical unit; 6. Tape; 7. Steel tape layer; 8. Sheath. Detailed Embodiments

[0027] All the features disclosed in this specification, or all the steps in any method or process disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0028] like Figure 1 - Figure 2 As shown, a micro-cluster branching optoelectronic hybrid cable of the utility model comprises a cable core and a sheath layer. The cable core is formed by SZ twisting of a micro-cluster optical unit 5 and two electrical units 1 to form a twisted unit. This twisting method can not only effectively improve the tensile strength of the cable core, but also provide better flexibility when the cable core is subjected to external force, thereby reducing the damage to the optical fiber and electrical conductor inside the cable core.

[0029] The cable core adopts a semi-dry structure, and a dry water-blocking material 2 water-blocking yarn is placed in the middle. This structural design can effectively prevent moisture from penetrating without affecting the flexibility of the cable core, avoiding moisture damage to the optical fiber and electrical conductor.

[0030] The cable core is longitudinally wrapped with a water-blocking tape 6, which further enhances the waterproof performance of the optoelectronic hybrid cable;

[0031] The longitudinal steel tape layer 7 outside the cable core not only provides higher mechanical protection, but also improves the impact resistance and compression resistance of the photovoltaic hybrid cable.

[0032] The outer sheath 8 of the steel belt layer 7 is formed by extrusion and is provided with parallel reinforcement members 3. The reinforcement members can effectively enhance the tensile strength of the optical-electric hybrid cable and improve its durability.

[0033] The material of the sheath 8 can be polyethylene or flame-retardant polyolefin, which not only provides good environmental adaptability but also enhances the durability and safety of the optical-electrical hybrid cable.

[0034] The micro-cluster optical unit 5 includes a micro-cluster tube and an optical fiber unit 4, wherein the optical fiber unit is an optical fiber. The design of the micro-cluster optical unit enables the optical fiber unit to be effectively protected in the micro-cluster tube, reducing the impact of the external environment on the optical fiber signal transmission. The high-density arrangement of the micro-cluster optical unit allows more optical fibers to be accommodated in a relatively small cable diameter, thereby improving the optical signal transmission capacity of the optoelectronic hybrid cable. The micro-cluster tube can be made of high-strength plastic materials, such as polybutylene terephthalate (PBT), to enhance the wear resistance and pressure resistance of the micro-cluster optical unit, thereby improving the overall service life of the optical cable.

[0035] The electrical unit 1 is generally a single-core soft conductor RV or RY, which has good conductivity and flexibility and can provide stable power transmission in the optical-electrical hybrid cable.

[0036] The choice between RV and RY conductors can be adjusted according to actual use requirements. RV conductors are suitable for higher current transmission occasions, while RY conductors are more flexible and suitable for applications that require frequent bending. In addition, the outer insulation layer of the electrical unit can be made of materials with excellent heat resistance, such as cross-linked polyethylene (XLPE), to enhance its working stability in high temperature environments.

[0037] The parallel strength member 3 is a metal phosphated steel wire or a non-metallic FRP. The metal phosphated steel wire has extremely high tensile strength and corrosion resistance, and can provide good mechanical support under harsh external environmental conditions. The non-metallic FRP is a lightweight and high-strength material with good fatigue resistance and weather resistance, and is particularly suitable for use in the optical and electrical hybrid cable that needs to reduce weight. The use of the parallel strength member enables the optical and electrical hybrid cable to maintain its structural integrity during long-distance laying, and avoid damage to the cable core due to stretching or external forces.

[0038] The material of the sheath 8 is polyethylene or flame-retardant polyolefin. The polyethylene material is widely used in the sheath layer of the optical and electrical hybrid cable due to its excellent wear resistance and chemical corrosion resistance. At the same time, the polyethylene material also has good flexibility, enabling the optical and electrical hybrid cable to maintain good operating performance in complex environments. The flame-retardant polyolefin material can delay the spread of flames in the event of a fire by adding a flame retardant, providing higher safety, and is suitable for use in environments with strict fire protection requirements.

[0039] As Figure 3 - Figure 4 shown, the difference from the previous embodiment is that the optical fiber unit 4 in the microcluster optical unit 5 is changed to an optical fiber bundle to increase the number of cable cores and improve the transmission capacity of the optical cable; the optical fiber bundle can accommodate more optical fibers in a limited cable core space, thereby greatly increasing the transmission bandwidth of the optical and electrical hybrid cable and meeting the requirements of large data volume and high-speed transmission;

[0040] The structure of the optical fiber bundle can be adjusted according to specific application scenarios. For example, a tight-buffered optical fiber bundle is suitable for application environments that require high tensile strength, while a loose-buffered optical fiber bundle is more suitable for use in laying paths that require a larger bending radius.

[0041] The optical cable structure of the present utility model is simple, the manufacturing cost of the optical cable is low, it is suitable for use in access networks or for household use, and the optical cable structure is compact, lightweight, has good bending performance, and is convenient for laying.

[0042] By adopting a dry structure, the inside of the optical cable is clean and pollution-free, and the construction process is also more convenient. The compact structure not only reduces the production cost, but also improves the installation efficiency and service life of the optical and electrical hybrid cable, and is particularly suitable for use in fiber to the home (FTTH) or fiber to the building (FTTB) projects of households and enterprises.

[0043] The bending performance enables the optical and electrical hybrid cable to flexibly cope with various complex paths during laying, reducing the transmission performance loss caused by bending, and the dry structure not only improves the waterproof performance, but also reduces the weight of the cable core, making the optical and electrical hybrid cable more suitable for laying over long distances and in complex environments.

[0044] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be thought of without creative work should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. An optoelectronic hybrid cable for microcluster branching, characterized in that, Comprising: A cable core body, with a tape (6) longitudinally wrapped outside the cable core body, and a dry water-blocking material (2) provided in the middle of the cable core body; A sheath (8) layer, which wraps around the tape (6) of the cable core body to protect the cable core body.

2. The optoelectronic hybrid cable for microcluster branches according to claim 1, characterized in that: The cable core body is composed of a microcluster optical unit (5) and two electrical units (1) twisted together, and the dry water-blocking material (2) is placed between the microcluster optical unit (5) and the two electrical units (1).

3. The optoelectronic hybrid cable for microcluster branches according to claim 1, characterized in that: The sheath (8) layer includes a sheath (8) main body, a steel tape layer (7) and parallel strengthening members (3); The steel tape layer (7) is placed inside the sheath (8) main body and contacts the tape (6), and the parallel strengthening members (3) are placed on both sides inside the sheath (8) main body.

4. The optical and electrical hybrid cable for micro-cluster branches according to claim 2, wherein: The microcluster optical unit (5) includes a loose tube and an optical fiber unit (4), and the optical fiber unit (4) is an optical fiber or an optical fiber bundle.

5. The optical and electrical hybrid cable for microcluster branches according to claim 2, characterized in that: The electrical unit (1) is a single-core flexible conductor RV or RY.

6. The optoelectronic hybrid cable for microcluster branches according to claim 1, characterized in that: The dry water-blocking material (2) is water-blocking yarn or water-blocking powder.

7. The optoelectronic hybrid cable for microcluster branches according to claim 1, characterized in that: The material of the tape (6) is a water-blocking tape.

8. The optoelectronic hybrid cable for microcluster branches according to claim 1, characterized in that: The material of the sheath (8) is polyethylene or flame-retardant polyolefin.

9. The optoelectronic hybrid cable for microcluster branches according to claim 3, characterized in that: The parallel strengthening members (3) are metal phosphated steel wires or non-metallic FRP.

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