CN111161909A - Photoelectric hybrid cable - Google Patents
Photoelectric hybrid cable Download PDFInfo
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- CN111161909A CN111161909A CN201911326719.3A CN201911326719A CN111161909A CN 111161909 A CN111161909 A CN 111161909A CN 201911326719 A CN201911326719 A CN 201911326719A CN 111161909 A CN111161909 A CN 111161909A
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- optical fiber
- conductive
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4417—High voltage aspects, e.g. in cladding
- G02B6/4419—Preventing corona discharge
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2813—Protection against damage caused by electrical, chemical or water tree deterioration
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
Abstract
The invention relates to the field of optical cable wires, in particular to a photoelectric hybrid cable. It includes: the optical fiber module, the conductive module and the outer protective layer are arranged from inside to outside in sequence; the optical fiber module consists of a plurality of optical fiber wires which are arranged in parallel; the conductive module is composed of conductive slingshot wires which are tightly attached to each other, and the conductive slingshot wires are tightly wound outside the optical fiber module; the outer protective layer consists of a moisture-proof skin and a flame-retardant layer; the dampproof leather cladding is outside electrically conductive module, and fire-retardant layer cladding is outside the dampproof leather. The photoelectric hybrid cable has good bending resistance and can well protect an optical fiber module; and the photoelectric hybrid cable can generate a certain electromagnetic shielding effect, and circumferential breakdown guide is formed, so that the optical fiber module can be better protected, and the problem that the optical fiber module is fused due to radial breakdown generated under the condition of large voltage fluctuation is avoided.
Description
Technical Field
The invention relates to the field of optical cable wires, in particular to a photoelectric hybrid cable.
Background
Optical fiber cables (optical fiber cables) are manufactured to meet optical, mechanical, or environmental performance specifications and are telecommunication cable assemblies that utilize one or more optical fibers disposed in a surrounding jacket as the transmission medium and that may be used individually or in groups. The optical cable mainly comprises optical fibers (thin glass fibers like hair), a plastic protective sleeve and a plastic outer sheath, wherein a cable core is formed by a certain number of optical fibers according to a certain mode, and is externally coated with a sheath, and an outer protective layer is also coated on the outer protective layer to realize a communication line for transmitting optical signals. Namely: a cable formed by subjecting an optical fiber (optical transmission carrier) to a certain process. The basic structure of the optical cable generally comprises a cable core, a reinforcing steel wire, a filler, a sheath and other parts, and further comprises a waterproof layer, a buffer layer, an insulated metal wire and other components according to requirements.
Traditional optical cable only has the ability of transmission light signal, and it still needs additionally to set up the cable to cooperate optical cable usually, has consequently appeared in the early years and has had the mixed cable of light signal transmission ability and power transmission function simultaneously, and its most major structure is the simple combination of optical cable and cable, is about to the optical fiber and leads the common cladding of copper line and be fixed in protective case and crust in to realize the integration of optical cable and cable, has avoided additionally arranging the loaded down with trivial details nature of cable.
However, the conventional optical-electrical hybrid cable has poor bending resistance, and easily causes optical fiber damage after bending, thereby causing problems such as poor optical signal transmission and even interruption of optical signal transmission. Moreover, since the original optical cable does not contain metal elements/metal components, the optical cable is not influenced by an environmental electromagnetic field, and after the optical cable and the metal copper wire for transmitting electric power are mixed after the optical cable and the electric cable are formed, the problem that the optical cable is easily influenced by an external electromagnetic environment is further caused. The harmfulness of the external electromagnetic environment on the optical cable line [ J ] the academy of Beijing post and electronics, 1993(04):13-19, which details the problems caused by the external electromagnetic environment when the optical cable contains metal.
Therefore, the current hybrid optical/electrical cable needs to be improved in various aspects such as bending resistance and electromagnetic interference resistance.
Disclosure of Invention
The invention provides an optical-electrical hybrid cable, aiming at solving the problems that the existing optical-electrical hybrid cable has poor bending resistance, optical fibers are easily damaged after being bent, the transmission capability of optical signals is poor and even interrupted, the existing optical-electrical hybrid cable has poor external electromagnetic interference resistance and the like. The invention aims to: the bending resistance of the photoelectric hybrid cable is improved, the photoelectric hybrid cable can still keep the optical fiber intact after being bent, and the optical fiber is prevented from being bent at a bent angle; and secondly, the problems that the optical fiber module is damaged due to external electromagnetic interference and the like can be avoided.
In order to achieve the purpose, the invention adopts the following technical scheme.
An optical-electrical hybrid cable comprising:
the optical fiber module, the conductive module and the outer protective layer are arranged from inside to outside in sequence;
the optical fiber module consists of a plurality of optical fiber wires which are arranged in parallel;
the conductive module is composed of conductive slingshot wires which are tightly attached to each other, and the conductive slingshot wires are tightly wound outside the optical fiber module;
the outer protective layer consists of a moisture-proof skin and a flame-retardant layer;
the dampproof leather cladding is outside electrically conductive module, and fire-retardant layer cladding is outside the dampproof leather.
Preferably, the conductive slingshot wire is a copper alloy wire, and the exterior of the conductive slingshot wire is coated with an insulating glue.
Preferably, the insulating glue is a light-cured insulating resin.
Preferably, the copper alloy wire is a Cu-Ni-Al-Mn alloy wire;
the stiffness coefficient of the Cu-Ni-Al-Mn alloy wire is 35-55N/m, and the electric conductivity is more than or equal to 60%.
Preferably, the Cu-Ni-Al-Mn alloy wire has a Ni content of 3.2 to 4.8 wt%, an Al content of 1.6 to 3.2 wt%, and a Mn content of 6 to 11 wt%, with the balance being copper and unavoidable impurities.
Preferably, the optical fiber module is externally coated with an insulating sleeve.
The invention has the beneficial effects that:
1) the prepared photoelectric hybrid cable has good bending resistance and can well protect the optical fiber module;
2) the prepared photoelectric hybrid cable can generate a certain electromagnetic shielding effect, weakens the interference of electromagnetism on the optical fiber module, forms circumferential breakdown guide, can better protect the optical fiber module, and avoids the problem of fusing the optical fiber module due to radial breakdown under the condition of large voltage fluctuation.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic view of the layer structure of the present invention.
In the figure: 1 optical fiber line, 2 conductive slingshot line, 3 outer protective layer, 31 dampproof skin, 32 flame retardant layer, 4 insulation support.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and the attached drawing figures. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
Unless otherwise specified, the raw materials used in the examples of the present invention are all commercially available or available to those skilled in the art; unless otherwise specified, the methods used in the examples of the present invention are all those known to those skilled in the art.
Examples
An optical-electrical hybrid cable as shown in fig. 1 and 2, comprising:
the optical fiber module, the conductive module and the outer protective layer 3 are arranged in a layer-by-layer coating manner from inside to outside;
wherein:
the optical fiber module is used for realizing optical signal transmission and is composed of optical fiber lines 1 which are arranged in parallel;
the conductive module is used for realizing the power transmission function and consists of conductive slingshot wires 2 with good conductivity, at least one conductive slingshot wire 2 is arranged and is tightly wound outside the optical fiber module, preferably, the number of the conductive slingshot wires 2 is 8-16, the spiral distance of the slingshot wires can be properly increased, compared with the arrangement mode with less number, the spiral distance of the slingshot wires is properly increased, the wire diameter of the conductive slingshot wires is reduced, the material selection is facilitated, the requirement on the material selection is lowered, the cost is saved, but the excessive number is not suitable to be set, because the slingshot wires of the spiral wire body are selected as the conductive wires, the anti-bending capability of the whole photoelectric mixed cable is improved, the slingshot wires have the particularity of not forming right-angle bending under the condition of large-angle bending, but the particularity can gradually disappear along with the increase of the spiral distance, and under the condition that 8-16 conductive slingshot wires 2 are arranged, the material selection range can be enlarged, the requirement on material selection is reduced, and meanwhile, the good bending resistance of the whole photoelectric hybrid cable can be ensured, for example, 12 conductive slingshot wires are selected and arranged in the embodiment;
the outer protection layer 3 is used for protecting the optical fiber module and the conductive module, and the protection mainly lies in the aspects of abrasion resistance, bare oxidation, flame retardance, moisture resistance and the like, so that the optical fiber module and the conductive module are protected by the outer protection layer 1 and the conductive module through the moisture-proof skin 31 and the flame-retardant layer 32 which are coated with commercially available waterproof resin for multiple times and cured to form the moisture-proof skin 31 and the flame-retardant layer 32 which is coated with commercially available flame-retardant resin for multiple times;
furthermore, an insulating sleeve 4 is further sleeved outside the optical fiber module, namely, an insulating layer structure is further arranged between the optical fiber module and the conductive module, and the adverse effects possibly generated by the conductive module on the optical fiber module, such as the occurrence of breakdown current to fuse the optical fiber wire 1, are further avoided and prevented through the arrangement of the insulating sleeve 4;
the surface of the conductive slingshot wire 2 is also coated with ScotchcastTM#8 electric insulating resin, coating and curing the insulating resin to form an insulating adhesive film on the surface of the conductive slingshot wire 2, compared with ScotchcastTM#9 and ScotchcastTM#281 isoelectrical insulating resin, ScotchcastTM#8 the electronic insulating resin has lower viscosity, can be cured quickly, can effectively avoid the problem that the conductive slingshot wires 2 are mutually adhered, ensures that the slingshot wires cannot be connected and can still realize the protection of the optical fiber module, and once the slingshot wires are adhered, a break angle is generated when the slingshot wires are bent, which is not beneficial to protecting the optical fiber module;
further, the coating of the insulating resin causes insulation between the adjacent wound pantograph wires 2, that is, it can be regarded that an insulator is provided between two electric conductors, the thickness of the insulator is lower than that of the insulating sleeve 4, the thickness of the insulating film is usually controlled to be 0.2-0.5 mm, the thickness of the insulating sleeve 4 is 1-1.2 mm, so that the environment with different directions and different resistances is formed, further forming the dielectric breakdown with guiding property, so that when the wire body is subjected to the action of high current such as lightning stroke and the like, the dielectric breakdown along the axial direction or the circumferential direction of the photoelectric mixed cable is formed between the conductive modules firstly, the radial dielectric breakdown is avoided, the optical fiber module is protected, the conductive module coated outside the optical fiber module can also form a protection effect similar to electromagnetic shielding, the harmful interference of the external electromagnetic environment on the optical fiber module is further weakened, and the external electromagnetic interference resistance of the whole optical fiber module is improved.
In addition, the conductive slingshot wire 2 selected by the conductive module is a copper alloy wire, and the copper alloy wire is a novel high-elastic conductive copper alloy specially developed for the product;
the common high-elastic conductive copper alloy is Cu-Be alloy which has good conductivity and elasticity, can Be used for preparing a conductive slingshot wire 2 with higher stiffness coefficient, but has higher cost, the raw material cost of the whole photoelectric mixed cable is greatly increased when the photoelectric mixed cable is used for preparing the photoelectric mixed cable, so that the whole price of the photoelectric mixed cable is increased, the profit margin is reduced, however, in the prior art, in order to replace the Cu-Be alloy, a Cu-Ni-Al-Zn copper alloy is developed, it also has good elasticity and conductivity, but when used in the technical solution of the present invention, it was found after trial by developers, the conductive slingshot wire 2 prepared by taking the conductive slingshot wire as a raw material has an overlarge stiffness coefficient, so that the problem that the whole photoelectric mixed cable is difficult to bend is caused, and the laying difficulty of the photoelectric mixed cable is greatly improved, so that research personnel of the project improve the copper alloy wire pertinently;
firstly, selecting a copper alloy with 3.2-4.8 wt% of Ni, 1.6-3.2 wt% of Al, 6-11 wt% of Mn and the balance of copper and inevitable impurities as a raw material or weighing nickel, aluminum, manganese and industrial pure copper according to the above matching, smelting and preparing to form the conductive slingshot wire 2 applicable to the photoelectric hybrid cable;
in the embodiment, a copper alloy with 3.2 wt% of Ni, 2.4 wt% of Al, 10.5 wt% of Mn and the balance of copper and inevitable impurities is selected as a raw material, the raw material is subjected to smelting, hot rolling, annealing and pickling, cold drawing, quenching, tempering and other operations, and finally, insulating resin is drawn and coated to form the pantograph-type current conducting wire 2, the stiffness coefficient of the pantograph-type current conducting wire 2 prepared through tests is about 92-94N/m, the conductivity is about 67-68%, and the photoelectric mixed cable has a good using effect and can realize fillet bending.
And (3) bending resistance test:
the method comprises the steps of firstly preparing ten lengths of 1m of photoelectric hybrid cables as to-be-tested wire bodies, marking the photoelectric hybrid cables on an outer protection layer 3 at intervals of 10cm, namely, each wire body is provided with nine measuring points, each wire body is subjected to 90-degree bending test twice and 180-degree bending test twice on four measuring points, the 90-degree bending test and the 180-degree bending test are carried out at intervals, namely, the 90-degree bending test, the 180-degree bending test, the 90-degree bending test and the 180-degree bending test are sequentially carried out, wherein five lengths of the to-be-tested wire bodies are continuously bent for 30min each time, the rest five lengths of the to-be-tested wire bodies are continuously bent for 3h each time, after the test is finished, the outer protection layer 3, a conductive module and an insulating sleeve 4 outside the optical fiber module are carefully peeled off, no crease mark is found when.
Electrical breakdown test:
taking five sections of photoelectric mixed cables with the length of 50cm as a wire body to be tested, arranging electrodes at two radial ends of the wire body to form voltage difference discharge and form electric breakdown, wherein the breakdown voltage is 660V, continuously breaking through for 3min, observing the photoelectric mixed cables by naked eyes after the discharge is finished, enabling an outer protective layer 3 to generate scorch and a small amount of carbonization, observing a conductive module after the outer protective layer 3 is peeled, enabling the scorch to be generated between conductive slingshot wires 2 of the conductive module, further cutting and peeling the conductive slingshot wires 2 of the conductive module, enabling an insulating sleeve 4 to generate a small amount of black scorch, observing an optical fiber module after the insulating sleeve 4 is peeled, enabling an optical fiber 1 of the optical fiber module to be free of scorch, testing the optical signal transmission performance of the whole section of photoelectric mixed cable, basically not being influenced, and having good electromagnetic interference resistance and electrical breakdown resistance.
Claims (6)
1. An optical-electrical hybrid cable, comprising:
the optical fiber module, the conductive module and the outer protective layer are arranged from inside to outside in sequence;
the optical fiber module consists of a plurality of optical fiber wires which are arranged in parallel;
the conductive module is composed of conductive slingshot wires which are tightly attached to each other, and the conductive slingshot wires are tightly wound outside the optical fiber module;
the outer protective layer consists of a moisture-proof skin and a flame-retardant layer;
the dampproof leather cladding is outside electrically conductive module, and fire-retardant layer cladding is outside the dampproof leather.
2. The hybrid optical/electrical cable according to claim 1,
the conductive slingshot wire is a copper alloy wire, and the exterior of the conductive slingshot wire is coated with insulating glue.
3. The hybrid optical/electrical cable according to claim 2,
the insulating glue is light-cured insulating resin.
4. The hybrid optical/electrical cable according to claim 2,
the copper alloy wire is a Cu-Ni-Al-Mn alloy wire;
the stiffness coefficient of the Cu-Ni-Al-Mn alloy wire is 85-105N/m, and the electric conductivity is more than or equal to 60%.
5. The hybrid optical/electrical cable according to claim 4,
the Cu-Ni-Al-Mn alloy wire comprises 3.2-4.8 wt% of Ni, 1.6-3.2 wt% of Al, 6-11 wt% of Mn and the balance of copper and inevitable impurities.
6. The hybrid optical/electrical cable according to claim 1,
and the optical fiber module is coated with an insulating sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911326719.3A CN111161909A (en) | 2019-12-20 | 2019-12-20 | Photoelectric hybrid cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911326719.3A CN111161909A (en) | 2019-12-20 | 2019-12-20 | Photoelectric hybrid cable |
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| CN111161909A true CN111161909A (en) | 2020-05-15 |
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| CN201911326719.3A Pending CN111161909A (en) | 2019-12-20 | 2019-12-20 | Photoelectric hybrid cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114488530A (en) * | 2020-10-26 | 2022-05-13 | 英济股份有限公司 | Projection glasses, projection type glasses leg structure and modular optical machine of projection glasses |
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| CN102623096A (en) * | 2012-04-20 | 2012-08-01 | 安徽天星光纤通信设备有限公司 | Optic/electric composite cable |
| CN203300315U (en) * | 2013-06-09 | 2013-11-20 | 四川汇源光通信有限公司 | Optical fiber composite overhead ground wire integrated with temperature sensing function |
| CN104051080A (en) * | 2014-07-03 | 2014-09-17 | 兰宝琴 | Method for preparing insulated wire |
| CN104294080A (en) * | 2014-09-18 | 2015-01-21 | 贝原合金（苏州）有限公司 | Wear-resistant copper alloy formula and preparation method thereof |
| CN104332225A (en) * | 2014-09-15 | 2015-02-04 | 沈群华 | Photoelectric composite cable laid in seabed, and manufacture method thereof |
| CN110106393A (en) * | 2019-05-14 | 2019-08-09 | 中国兵器科学研究院宁波分院 | A kind of wear-resisting aluminium bronze of high manganese and preparation method thereof |
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2019
- 2019-12-20 CN CN201911326719.3A patent/CN111161909A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201242897Y (en) * | 2008-07-02 | 2009-05-20 | 浙江万马电缆股份有限公司 | Intelligent temp-sensing cable |
| CN102623096A (en) * | 2012-04-20 | 2012-08-01 | 安徽天星光纤通信设备有限公司 | Optic/electric composite cable |
| CN203300315U (en) * | 2013-06-09 | 2013-11-20 | 四川汇源光通信有限公司 | Optical fiber composite overhead ground wire integrated with temperature sensing function |
| CN104051080A (en) * | 2014-07-03 | 2014-09-17 | 兰宝琴 | Method for preparing insulated wire |
| CN104332225A (en) * | 2014-09-15 | 2015-02-04 | 沈群华 | Photoelectric composite cable laid in seabed, and manufacture method thereof |
| CN104294080A (en) * | 2014-09-18 | 2015-01-21 | 贝原合金（苏州）有限公司 | Wear-resistant copper alloy formula and preparation method thereof |
| CN110106393A (en) * | 2019-05-14 | 2019-08-09 | 中国兵器科学研究院宁波分院 | A kind of wear-resisting aluminium bronze of high manganese and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114488530A (en) * | 2020-10-26 | 2022-05-13 | 英济股份有限公司 | Projection glasses, projection type glasses leg structure and modular optical machine of projection glasses |
| CN114488530B (en) * | 2020-10-26 | 2024-05-28 | 英济股份有限公司 | Projection glasses and projection type glasses leg structure |
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Application publication date: 20200515 |
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