CN112201400A - Photoelectric composite optical cable easy to branch - Google Patents
Photoelectric composite optical cable easy to branch Download PDFInfo
- Publication number
- CN112201400A CN112201400A CN202011042500.3A CN202011042500A CN112201400A CN 112201400 A CN112201400 A CN 112201400A CN 202011042500 A CN202011042500 A CN 202011042500A CN 112201400 A CN112201400 A CN 112201400A
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- CN
- China
- Prior art keywords
- optical
- composite cable
- electrical composite
- layer
- stranded
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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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- 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
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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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
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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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
-
- 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
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
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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
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
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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
- H01B7/38—Insulated conductors or cables characterised by their form with arrangements for facilitating removal of insulation
- H01B7/385—Insulated conductors or cables characterised by their form with arrangements for facilitating removal of insulation comprising a rip cord or wire
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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
Abstract
The invention discloses an easily-branched photoelectric composite optical cable which comprises an outer sheath and a layer-stranded photoelectric composite cable core sleeved in the outer sheath, wherein a water blocking tape is wrapped between the outer sheath and the layer-stranded photoelectric composite cable core, a plurality of tearing ropes are uniformly arranged outside the water blocking tape, the layer-stranded photoelectric composite cable core comprises a non-metal central reinforcing part positioned in the center, and a plurality of insulating feeder lines and a plurality of armored optical units are stranded on the periphery of the non-metal central reinforcing part. The intelligent lamp post system is reasonable in structure and arrangement, convenient to lay and use, small in laying space and low in cost, and is particularly suitable for being used in an intelligent lamp post system.
Description
Technical Field
The invention relates to the technical field of easily-branched photoelectric composite cables for smart lamp post base stations, in particular to an easily-branched photoelectric composite optical cable.
Background
In order to reasonably and orderly use urban space and beautify road environment, street lamp poles along the road, traffic facility poles, garden street lamp poles and the like are integrated, so that the smart lamp poles exist, and nowadays, the nation accelerates the deployment of 5G construction, and is a development opportunity for the smart lamp poles to meet at a thousand years. The communication line of wisdom lamp pole mostly adopts full optical cable transmission, and the two kinds of modes of getting the electricity or supplying power through another dedicated cable are generally adopted to the power consumption of distal end equipment, and this not only increases the laying cost, also violates the integration principle of wisdom lamp pole, and along with wisdom lamp pole is more and more popularized, the communication of wisdom lamp pole, circular telegram circuit need be from two integrations to one, and the light unit also needs the convenient connection basic station.
Disclosure of Invention
The invention mainly aims to provide an easily-branched photoelectric composite optical cable with a reasonable structure aiming at the defects in the prior art.
In order to achieve the purpose, the invention provides an easily-branched photoelectric composite optical cable which comprises an outer sheath and a layer-stranded photoelectric composite cable core sleeved in the outer sheath, wherein a water blocking tape is wrapped between the outer sheath and the layer-stranded photoelectric composite cable core, a plurality of tearing ropes are uniformly arranged outside the water blocking tape, the layer-stranded photoelectric composite cable core comprises a non-metal central reinforcing part positioned in the center, and a plurality of insulating feeder lines and a plurality of armored optical units are stranded on the periphery of the non-metal central reinforcing part.
According to a further technical scheme, the armored optical unit comprises a non-metal reinforcing piece and a flame-retardant sheath sleeved outside the non-metal reinforcing piece, a spiral steel strip armored pipe is arranged in the non-metal reinforcing piece, and an optical fiber unit is arranged in the spiral steel strip armored pipe.
According to a further technical scheme, the nonmetal reinforcing piece is made of aramid yarns.
The further technical scheme of the invention is that the flame-retardant sheath is made of low-smoke halogen-free flame-retardant polyolefin.
According to a further technical scheme, a flame-retardant polyolefin cushion layer is coated outside the non-metal central reinforcement, and the plurality of insulating feeder lines and the plurality of armored optical units are twisted on the periphery of the flame-retardant polyolefin cushion layer.
The invention has the further technical scheme that the non-metal central reinforcing part is a glass fiber reinforced plastic rod.
According to a further technical scheme of the invention, the insulated feeder comprises a wire core conductor and an insulating layer coated outside the wire core conductor.
The further technical scheme of the invention is that the insulating layer is a polyvinyl chloride insulating layer.
The further technical scheme of the invention is that the number of the insulated feeder lines is six, and every two insulated feeder lines form a pair and are used as positive and negative electrodes.
According to a further technical scheme, the layer-stranded photoelectric composite cable core further comprises a water-blocking material layer, and the water-blocking material layer comprises water-blocking yarns.
The photoelectric composite optical cable easy to branch has the beneficial effects that: according to the technical scheme, the optical cable comprises an outer sheath and a layer-stranded photoelectric composite cable core sleeved in the outer sheath, a water blocking tape is arranged between the outer sheath and the layer-stranded photoelectric composite cable core, a plurality of tearing ropes are uniformly arranged outside the water blocking tape, the layer-stranded photoelectric composite cable core comprises a non-metal central reinforcing part positioned in the center, a plurality of insulating feeder lines and a plurality of armored optical units are stranded on the periphery of the non-metal central reinforcing part, compared with the prior art, the optical cable has good branching performance and crush resistance performance, and connector plugs at two ends of the optical units of the photoelectric composite cable can be connected with different positions of a base station; the optical unit containing the spiral steel belt armored pipe can resist huge lateral pressure during construction and operation, and normal operation of communication is guaranteed; the intelligent lamp post system is reasonable in structure and arrangement, convenient to lay and use, small in laying space and low in cost, and is particularly suitable for being used in an intelligent lamp post system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a radial cross-sectional view of a preferred embodiment of the optical-electrical composite optical cable of the present invention;
fig. 2 is a cross-sectional view of an armored optical unit.
The reference numbers illustrate:
an outer sheath 10; a water-blocking tape 20; a tear string 30; a non-metallic center stiffener 40; an armored optical unit 50; a non-metallic reinforcement 60; a flame retardant jacket 70; a spiral steel band armored tube 80; an optical fiber unit 90; a flame retardant polyolefin cushion layer 100; a core conductor 110; an insulating layer 120; a water blocking yarn 130.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, the present invention provides an easily-branching optical-electrical composite cable, wherein fig. 1 is a radial cross-sectional view of a preferred embodiment of the easily-branching optical-electrical composite cable of the present invention, and fig. 2 is a cross-sectional view of an optical unit of an armor.
As shown in fig. 1 and fig. 2, in this embodiment, the optical-electrical composite cable with easy branching includes an outer sheath 10 and a layer-twisted optical-electrical composite cable core sleeved in the outer sheath 10, a water blocking tape 20 is wrapped between the outer sheath 10 and the layer-twisted optical-electrical composite cable core, a plurality of tear cords 30 are uniformly arranged outside the water blocking tape 20, the layer-twisted optical-electrical composite cable core includes a non-metal central reinforcement 40 located at the center, and a plurality of insulation feeder lines and a plurality of armored optical units 50 are twisted on the periphery of the non-metal central reinforcement 40. The number of the armored optical units 50 can be six, and after cabling, connector plugs are respectively additionally arranged at two ends of each armored optical unit 50.
The outer sheath 10 may be made of polyethylene. The non-metallic central stiffener 40 may be a fiberglass reinforced plastic rod.
In one embodiment, the number of the insulated power feeding lines is six, and two insulated power feeding lines form a pair and are used as positive and negative electrodes.
In this embodiment, a plurality of tear cords 30 are uniformly arranged outside the water blocking tape 20, for example, two tear cords 30 are symmetrically arranged, so that the optical cable easy to branch can be arbitrarily stripped, and the armored optical unit 50 can extend to different positions. The nonmetal central reinforcing part 40 can improve the mechanical pressure resistance of the easily-branched photoelectric composite optical cable, so that the service life of the easily-branched photoelectric composite optical cable is prolonged.
The armored optical unit 50 comprises a non-metal reinforcing part 60 and a flame-retardant sheath 70 sleeved outside the non-metal reinforcing part 60, a spiral steel belt armored pipe 80 is arranged in the non-metal reinforcing part 60, and an optical fiber unit 90 is arranged in the spiral steel belt armored pipe 80.
The non-metal reinforcing member 60 may be made of aramid yarn. The nonmetal reinforcing part 60 made of aramid yarns can further improve the mechanical pressure resistance of the easily-branched photoelectric composite optical cable. The spiral steel strip armored pipe 80 is arranged in the non-metal reinforcing member 60, so that the flattening resistance of the spiral steel strip armored pipe can be improved, and the stripped optical unit can be well protected.
The flame-retardant sheath 70 may be made of low-smoke halogen-free flame-retardant polyolefin. In this embodiment, the low-smoke halogen-free flame-retardant polyolefin is adopted to prepare the flame-retardant sheath 70, so that the flame-retardant effect of the easily-branched photoelectric composite optical cable can be improved.
The nonmetal central reinforcing piece 40 is coated with a flame-retardant polyolefin cushion layer 100, and the plurality of insulated feeder lines and the plurality of armored optical units 50 are twisted on the periphery of the flame-retardant polyethylene cushion layer 100. In this embodiment, the non-metal central reinforcement 40 is coated with the plastic flame-retardant polyolefin cushion layer 100, so that the flame-retardant effect of the easily-branched photoelectric composite optical cable can be further improved.
In this embodiment, the insulated feeding line includes a core conductor 110 and an insulating layer 120 covering the core conductor 110.
The insulating layer 120 is a polyvinyl chloride insulating layer, so as to further improve the flame retardant effect of the easily-branched photoelectric composite optical cable.
In addition, in order to improve the water blocking performance, in this embodiment, the layer-twisted photoelectric composite cable core further includes a water blocking material layer, and the water blocking material layer includes a water blocking yarn 130.
The photoelectric composite optical cable easy to branch has the beneficial effects that: according to the technical scheme, the optical cable comprises an outer sheath and a layer-stranded photoelectric composite cable core sleeved in the outer sheath, a water blocking tape is arranged between the outer sheath and the layer-stranded photoelectric composite cable core, a plurality of tearing ropes are uniformly arranged outside the water blocking tape, the layer-stranded photoelectric composite cable core comprises a non-metal central reinforcing part positioned in the center, a plurality of insulating feeder lines and a plurality of armored optical units are stranded on the periphery of the non-metal central reinforcing part, compared with the prior art, the optical cable has good branching performance and crush resistance performance, and connector plugs at two ends of the optical units of the photoelectric composite cable can be connected with different positions of a base station; the optical unit containing the spiral steel belt armored pipe can resist huge lateral pressure during construction and operation, and normal operation of communication is guaranteed; the intelligent lamp post system is reasonable in structure and arrangement, convenient to lay and use, small in laying space and low in cost, and is particularly suitable for being used in an intelligent lamp post system.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The optical-electrical composite cable easy to branch is characterized by comprising an outer sheath and a layer-stranded optical-electrical composite cable core sleeved in the outer sheath, wherein a water blocking tape is wrapped between the outer sheath and the layer-stranded optical-electrical composite cable core, a plurality of tearing ropes are uniformly arranged outside the water blocking tape, the layer-stranded optical-electrical composite cable core comprises a non-metal central reinforcement positioned at the center, a plurality of insulating feeder lines and a plurality of armored optical units are stranded on the periphery of the non-metal central reinforcement, and the outer sheath is made of polyethylene.
2. The optical-electrical composite cable easy to branch according to claim 1, wherein the armored optical unit comprises a non-metal reinforcement and a flame-retardant sheath sleeved outside the non-metal reinforcement, a spiral steel-tape armored pipe is arranged inside the non-metal reinforcement, and an optical fiber unit is arranged inside the spiral steel-tape armored pipe.
3. The optical-electrical composite cable easy to branch according to claim 2, wherein the non-metal reinforcement is made of aramid yarn.
4. The easily-branched photoelectric composite optical cable according to claim 2, wherein the flame-retardant sheath is made of low-smoke halogen-free flame-retardant polyolefin.
5. The optical-electrical composite cable of claim 1, wherein the non-metallic central reinforcement is coated with a flame-retardant polyolefin cushion, and the plurality of insulated feed lines and the plurality of armored optical units are twisted around the flame-retardant polyolefin cushion.
6. The optical-electrical composite cable of claim 1, wherein the non-metallic central strength member is a fiberglass reinforced plastic rod.
7. The optical-electrical composite cable of claim 1, wherein the insulated feeder comprises a core conductor and an insulating layer covering the core conductor.
8. The optical-electrical composite cable of claim 7, wherein the insulating layer is a polyvinyl chloride insulating layer.
9. The optical-electrical composite cable according to claim 7, wherein the number of the insulated feeder lines is six, and each two insulated feeder lines form a pair and are used as a positive electrode and a negative electrode.
10. The optical-electrical composite cable of claim 1, wherein the layer-stranded optical-electrical composite cable core further comprises a water-blocking material layer, and the water-blocking material layer comprises a water-blocking yarn.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202011042500.3A CN112201400A (en) | 2020-09-28 | 2020-09-28 | Photoelectric composite optical cable easy to branch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011042500.3A CN112201400A (en) | 2020-09-28 | 2020-09-28 | Photoelectric composite optical cable easy to branch |
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CN112201400A true CN112201400A (en) | 2021-01-08 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202011042500.3A Pending CN112201400A (en) | 2020-09-28 | 2020-09-28 | Photoelectric composite optical cable easy to branch |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113889303A (en) * | 2021-09-26 | 2022-01-04 | 江苏亨通光电股份有限公司 | Photoelectric hybrid cable for smart city road pole and matched construction method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204558051U (en) * | 2015-02-03 | 2015-08-12 | 江苏永鼎股份有限公司 | A kind of novel building wiring comprehensive cable |
CN206003541U (en) * | 2016-08-26 | 2017-03-08 | 四川远通通信有限公司 | A kind of optoelectronic composite cable |
CN206479689U (en) * | 2017-03-02 | 2017-09-08 | 北京鸿讯基业通信设备检测有限公司 | The dual-purpose optical cable of LA light armor indoor and outdoor |
CN207408638U (en) * | 2017-10-09 | 2018-05-25 | 长飞光纤光缆(上海)有限公司 | A kind of easily branched optical cable of layer-twisted type |
CN209843350U (en) * | 2019-06-10 | 2019-12-24 | 宏安集团有限公司 | Photoelectric composite lead-in optical cable |
-
2020
- 2020-09-28 CN CN202011042500.3A patent/CN112201400A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204558051U (en) * | 2015-02-03 | 2015-08-12 | 江苏永鼎股份有限公司 | A kind of novel building wiring comprehensive cable |
CN206003541U (en) * | 2016-08-26 | 2017-03-08 | 四川远通通信有限公司 | A kind of optoelectronic composite cable |
CN206479689U (en) * | 2017-03-02 | 2017-09-08 | 北京鸿讯基业通信设备检测有限公司 | The dual-purpose optical cable of LA light armor indoor and outdoor |
CN207408638U (en) * | 2017-10-09 | 2018-05-25 | 长飞光纤光缆(上海)有限公司 | A kind of easily branched optical cable of layer-twisted type |
CN209843350U (en) * | 2019-06-10 | 2019-12-24 | 宏安集团有限公司 | Photoelectric composite lead-in optical cable |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113889303A (en) * | 2021-09-26 | 2022-01-04 | 江苏亨通光电股份有限公司 | Photoelectric hybrid cable for smart city road pole and matched construction method |
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Application publication date: 20210108 |
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