CN104977677B - Light unit and the optical cable using the light unit - Google Patents
Light unit and the optical cable using the light unit Download PDFInfo
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- CN104977677B CN104977677B CN201510414830.3A CN201510414830A CN104977677B CN 104977677 B CN104977677 B CN 104977677B CN 201510414830 A CN201510414830 A CN 201510414830A CN 104977677 B CN104977677 B CN 104977677B
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- light unit
- optical fiber
- fibre ribbon
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Classifications
-
- 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
- G02B6/4403—Optical cables with ribbon structure
-
- 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
-
- 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
- G02B6/4407—Optical cables with internal fluted support member
- G02B6/4409—Optical cables with internal fluted support member for ribbons
-
- 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
-
- 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
- G02B6/4436—Heat resistant
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
The invention belongs to technical field of cables, more particularly, to a kind of light unit, it is characterised in that it is made of a fibre ribbon (1), flexible reinforcer, unit sheath (3)；Fibre ribbon by the more placements that are parallel to each other optical fiber (11) and envelope the tack coat (12) of optical fiber and form, be non-touching between adjacent optical fiber；Flexible reinforcer is located at the outside of fibre ribbon；Unit sheath envelopes fibre ribbon, flexible reinforcer；The upper surface and the lower surface of unit sheath forms direction towards the groove of fibre ribbon.Present invention further teaches the optical cable using the light unit, light unit of the invention has following main beneficial effect：Anti-side pressure function admirable, product flexibility are good；The optical cable of the present invention has following main beneficial effect：Light unit repeats utilization, suitable for hot environment.
Description
The application is entitled：The optical cable of light unit and the use light unit, Application No.：201410000869.6、
The applying date is：The divisional application of the patent of invention of on 01 02nd, 2014.
Technical field
The invention belongs to technical field of cables, the optical cable more particularly, to a kind of light unit and using the light unit.
Background technology
With quickly propelling for FTTX, the demand of optical cable increasingly increases, for this reason, increasing both at home and abroad for optical cable
Research and development and application.Publication No. is that the patent of CN101958162A discloses optoelectronic composite cable, including cable core, embossing metal tube and outer
Sheath, embossing metal tube are located at outside cable core, and oversheath is located at outside embossing metal tube, and the cable core includes each being coated with insulating layer
At least couple of conductor and at least optical fiber being contained in ferrule, also accommodate for companion in the ferrule
With the reinforcing fiber of the optical fiber；Solve effect of the reinforcing fiber individually to optical fiber increase tensile strength, and to cable body
Overall tensile strength significantly improves.Publication No. is that the patent of CN202917234U discloses optoelectronic composite cable, including oversheath,
Photoelectricity transmission unit is equipped with oversheath, during photoelectricity transmission unit includes center conductor and be molded over including photoelectricity transmission unit
Heart conducting wire outside simultaneously coats the optical fiber of center conductor；Its optical fiber is molded over the outside of center conductor by photoelectricity transmission unit, without
It is by the optical fiber of advance comprising together with wire stranding as traditional optoelectronic composite cable, can thoroughly eliminates due to being twisted work
Skill and caused by optical fiber the problem of scrapping.Publication No. is that the patent of CN2916864 discloses optoelectronic composite cable, including cable core, anti-
Water layer, sheath, are equipped with some beam tubes and several signal wires to unit in cable core, signal wire five to for a twisted unit,
Form SZ to be twisted, signal wire unit outer surface is wrapped molding polyester belt；Sheath is to be squeezed again with wrinkle composite steel-plastic belt longitudinal wrap
The composite rope sheath of bag high density polyethylene (HDPE), in high temperature or low temperature, optoelectronic composite cable is stable, and waterstop plays good
Block-water effect.Publication No. be CN202258544U patent disclose optoelectronic composite cable, it include optical fiber, Loose tube, reinforcer,
Copper conductor and sheath, optical fiber is in Loose tube, Loose tube overcoat plastic-coated metal compound belt, is fire-retardant outside plastic-coated metal compound belt
Sheath, plastic-coated metal compound belt overcoat fire retardant jacket is interior to be equipped with reinforcer, and fireprotection layer and insulating sheath are cased with successively outside copper conductor,
They have casing filler, therefore optoelectronic composite cable has fire resisting, resistance to height in fire retardant jacket on the outside of reinforcer in Loose tube
Temperature, has fire protecting performance.Publication No. number is that the patent of CN202615928U discloses optoelectronic composite cable, including cable core（1）And parcel
Cable core（1）Oversheath（2）, cable core（1）Including wrapping layer（3）, wrapping layer（3）Inside it is provided with fiber unit（4）, signal wire copper
Conductor（5）, power supply copper conductor（6）And center reinforcemen（7）, sheath（2）Periphery be provided with burr（11）, the burr
（11）Cross section to be square, burr is set on the surface of optical cable, that is, reduces the friction between installing pipe so that installation speed
Degree is significantly improved.Publication No. is that the patent of CN102290140A discloses optoelectronic composite cable and optoelectronic composite cable component, should
Optoelectronic composite cable 11 has optical fibre core 12 and electric wire 15 in the inner side of sheath 20, and optical fibre core 12 is accommodated in configuration in cross section
In first protection pipe 13 of centre, electric wire 15 is configured between the first protection pipe 13 and sheath 20, and can be along the first protection pipe 13
Circumferential direction it is mobile.
Above-mentioned composite rope all includes optical fiber and power transmission line or the electric wire for signal transmission, and optical fiber is individually in Loose tube
Or the material of greasy for preventing water one kind is filled with Loose tube, bring inconvenience to construction；In addition, fiber unit due to it is other
Loose tube or power transmission unit are twisted together, and power transmission line easily flattens Loose tube, cause the deterioration of optical property；And due to
The Loose tube of fibre ribbon is twisted, and when manufacturing defective, electrical transmission unit is reusable after stripping cable core, but twists
The Loose tube closed can not reuse, and can cause very big loss.
The content of the invention
To solve the above-mentioned problems, the purpose of the present invention discloses a kind of light unit, further discloses this kind of light unit shape
Into optical cable.The present invention is achieved through the following technical solutions.
Light unit, it is characterised in that it is made of a fibre ribbon 1, flexible reinforcer, unit sheath 3；Fibre ribbon by
The optical fiber 11 of the more placements that are parallel to each other and envelope the tack coat 12 of optical fiber and form, between adjacent optical fiber
It is non-touching；Flexible reinforcer is located at the outside of fibre ribbon；Unit sheath envelopes fibre ribbon, flexible reinforcer；Institute
Stating unit sheath is made of the material comprising following parts by weight：
Corvic：40~50 parts；Dioctyl phthalate：11~16 parts；Diisooctyl phthalate：3
~4 parts；Epoxidized soybean oil：3~4 parts；Calcium-zinc composite stabilizing agent：3~4 parts；Paraffin：6~8 parts；Stearic acid：2~6 parts；Kaolinite
Soil：8~12 parts；Antioxidant 1010：0.2~0.8 part；Irgasfos 168：0.2~0.8 part；Calcium carbonate：3~6 parts；Aluminium hydroxide：
4~8 parts；Polypropylene：6~7 parts.
Light unit described above, it is characterised in that the unit sheath is made of the material comprising following parts by weight
's：Corvic：40 parts；Dioctyl phthalate：11 parts；Diisooctyl phthalate：3 parts；Epoxidized soybean oil：
3 parts；Calcium-zinc composite stabilizing agent：3 parts；Paraffin：6 parts；Stearic acid：2 parts；Kaolin：8 parts；Antioxidant 1010：0.2 part；Antioxidant
168：0.2 part；Calcium carbonate：3 parts；Aluminium hydroxide：4 parts；Polypropylene：6 parts.
Light unit described above, it is characterised in that the unit sheath is made of the material comprising following parts by weight
's：Corvic：50 parts；Dioctyl phthalate：16 parts；Diisooctyl phthalate：4 parts；Epoxidized soybean oil：
4 parts；Calcium-zinc composite stabilizing agent：4 parts；Paraffin：8 parts；Stearic acid：6 parts；Kaolin：12 parts；Antioxidant 1010：0.8 part；Antioxygen
Agent 168：0.8 part；Calcium carbonate：6 parts；Aluminium hydroxide：8 parts；Polypropylene：7 parts.
Light unit described above, it is characterised in that the unit sheath is made of the material comprising following parts by weight
's：Corvic：45 parts；Dioctyl phthalate：14 parts；Diisooctyl phthalate：3.5 part；Epoxy soybean
Oil：3.5 part；Calcium-zinc composite stabilizing agent：3.5 part；Paraffin：7 parts；Stearic acid：4 parts；Kaolin：10 parts；Antioxidant 1010：0.5
Part；Irgasfos 168：0.5 part；Calcium carbonate：4.5 part；Aluminium hydroxide：6 parts；Polypropylene：6.5 part.
Light unit described in first and second embodiment of the present invention, it is characterised in that the flexibility reinforcer is located at
The outside of fibre ribbon, i.e., above fibre ribbon and below.
Light unit described in the 3rd embodiment of the present invention, it is characterised in that the flexibility reinforcer is located at fibre ribbon
Outside, i.e., the surrounding on the outside of fibre ribbon, i.e., above fibre ribbon, below, the left side, all flexible reinforcer in the right side.
Light unit described above, it is characterised in that the optical fiber is 2 or 4 or 6 or 8 or 10 or 12
Root or 18 or 24.
Light unit described above, it is characterised in that the optical fiber is single mode optical fiber or multimode fibre.
Light unit described above, it is characterised in that the tack coat is heat reactive resin or ultraviolet-curing resin.
Light unit described above, it is characterised in that the material of the flexibility reinforcer for aramid yarn or glass fiber yarn or
Polyamide staple fibre spun yarn or Polyester Yarns.
In the 4th embodiment of the present invention, the photoelectricity using the light unit described in any of the above-described embodiment is disclosed
Cable, it is characterised in that it by centrally located unit casing 50, more power transmission lines being twisted around unit casing, be coated on
Insulating layer 53 outside power transmission line, the protective layer 54 being coated on outside insulating layer 53 and extrusion molding are coated on outside protective layer
Restrictive coating 55 form；The light unit is located within unit casing；The power transmission line by the conductor 51 positioned at internal layer and
The insulating outer layer 52 outside conductor 51 is coated on to form.
Optical cable described above, it is characterised in that the material of the insulating layer for polyester belt or waterstop or non-woven fabrics or
Mica tape.
Optical cable described above, it is characterised in that the material of the unit casing is polyvinyl chloride or low-smoke non-halogen flame-retardant
Polyethylene or medium density polyethylene or high density polyethylene (HDPE).
Optical cable described above, it is characterised in that the material of the restrictive coating gathers for polyvinyl chloride or low-smoke non-halogen flame-retardant
Ethene or medium density polyethylene or high density polyethylene (HDPE).
Optical cable described above, it is characterised in that the sectional area of the conductor is 0.5 square millimeter to 20 square millimeters.
In light unit in the present invention, since flexible reinforcer to be located to the outside of fibre ribbon, optical fiber is located at optical fiber
In band, therefore, the resistance to compression protective capability for optical fiber is stronger, and unit sheath is being subjected to the pressure condition of 4500N/100mm
Under, the changing value of the transmission performance of optical fiber is not less than 0.03dB/km.
In the present invention, the special formulation of the material of unit sheath so that it reaches with excellent fire resistance, oxygen index (OI)
More than 38, and density is only in 1.2-1.35g/cm3Between, than common low smoke and zero halogen material, flame-proof PVC material it is close
Degree is lower, and therefore, material consumption amount is less, and cost is lower；In the present invention, there is antioxidant 1010 and irgasfos 168 joint to make
With making this unit sheath that there are longer shelf-life and more excellent oxidation proof propertiess；Phthalic acid two in the present invention is pungent
Ester, diisooctyl phthalate, epoxidized soybean oil, stearic acid make that the processing performance of product is more excellent, melt index higher；Carbonic acid
Calcium, polypropylene make the material of unit sheath be provided with suitable hardness.
In the optical cable of the present invention, since unit casing is placed on center, unit casing have neither part nor lot in it is twisted, therefore,
When production is abnormal after stripping cable core, light unit in unit casing and unit casing still can normal use, greatly save into
This；It only placed an at least light unit in unit casing, be dry construction, therefore, easy to construct, and be adapted in higher temperature
Lower work.
Therefore, light unit of the invention has following main beneficial effect：Anti-side pressure function admirable, product flexibility
It is good；The optical cable of the present invention has following main beneficial effect：Light unit repeats utilization, suitable for hot environment.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the embodiment 1 of light unit of the present invention.
Fig. 2 is the cross-sectional structure schematic diagram of Fig. 1.
Fig. 3 is the dimensional structure diagram of the embodiment 2 of light unit of the present invention.
Fig. 4 is the cross-sectional structure schematic diagram of Fig. 3.
Fig. 5 is the dimensional structure diagram of the embodiment 3 of light unit of the present invention.
Fig. 6 is the cross-sectional structure schematic diagram of Fig. 5.
Fig. 7 is that a kind of cross-sectional structure of embodiment of this optical cable formed using the light unit of embodiment 5 is illustrated
Figure.
Embodiment
For embodiment 1 to the embodiment that embodiment 3 is light unit of the present invention, embodiment 4 is optical cable of the present invention
Embodiment.
Embodiment 1
See Fig. 1 to Fig. 2；Light unit, it is characterised in that it is by fibre ribbon 1, flexible reinforcer 2,3 structure of unit sheath
Into；Fibre ribbon by 12 placements that are parallel to each other optical fiber 11 and envelope the tack coat 12 of optical fiber and form, it is adjacent
It is non-touching between optical fiber；Flexible reinforcer is located at the outside of fibre ribbon, i.e., above fibre ribbon and below；Unit
Sheath envelopes fibre ribbon, flexible reinforcer；The upper surface and the lower surface of unit sheath is plane, the unit sheath be by
What the material comprising following parts by weight was formed：Corvic：40 parts；Dioctyl phthalate：11 parts；Phthalic acid
Diisodecyl ester：3 parts；Epoxidized soybean oil：3 parts；Calcium-zinc composite stabilizing agent：3 parts；Paraffin：6 parts；Stearic acid：2 parts；Kaolin：8
Part；Antioxidant 1010：0.2 part；Irgasfos 168：0.2 part；Calcium carbonate：3 parts；Aluminium hydroxide：4 parts；Polypropylene：6 parts.
Embodiment 2
See Fig. 3 and Fig. 4, and with reference to figure 1 and Fig. 2, light unit, it is characterised in that it is by fibre ribbon 1, flexible reinforcer
2nd, unit sheath 3 is formed；Fibre ribbon by 12 placements that are parallel to each other optical fiber 11 and envelope the tack coat of optical fiber
12 are formed, and are non-touching between adjacent optical fiber；Flexible reinforcer is located at the outside of fibre ribbon, i.e., fibre ribbon is upper
Face and below；Unit sheath envelopes fibre ribbon, flexible reinforcer；The upper surface and the lower surface of unit sheath forms direction
Towards the groove 4 of fibre ribbon；The unit sheath is made of the material comprising following parts by weight：Corvic：50
Part；Dioctyl phthalate：16 parts；Diisooctyl phthalate：4 parts；Epoxidized soybean oil：4 parts；Ca Zn composite is stablized
Agent：4 parts；Paraffin：8 parts；Stearic acid：6 parts；Kaolin：12 parts；Antioxidant 1010：0.8 part；Irgasfos 168：0.8 part；Carbonic acid
Calcium：6 parts；Aluminium hydroxide：8 parts；Polypropylene：7 parts；Groove 4 can greatly improve the anti-side pressure of unit sheath.
Embodiment 3
See Fig. 5 and Fig. 6, and with reference to figure 3 and Fig. 4, light unit, substantially with embodiment 2, difference is described soft
Property reinforcer be located at the outside of fibre ribbon, i.e., the surrounding on the outside of fibre ribbon, i.e., above fibre ribbon, below, the left side, the right side have
Flexible reinforcer；Flexible reinforcer by above fibre ribbon, below flexible reinforcer 2 and positioned at the left side of fibre ribbon,
The flexible reinforcer 21 on the right side is formed；The unit sheath is made of the material comprising following parts by weight：Polyvinyl chloride tree
Fat：45 parts；Dioctyl phthalate：14 parts；Diisooctyl phthalate：3.5 part；Epoxidized soybean oil：3.5 part；Calcium zinc
Compound stabilizer：3.5 part；Paraffin：7 parts；Stearic acid：4 parts；Kaolin：10 parts；Antioxidant 1010：0.5 part；Irgasfos 168：
0.5 part；Calcium carbonate：4.5 part；Aluminium hydroxide：6 parts；Polypropylene：6.5 part.
Certainly, the light unit described in any of the above-described embodiment, it is characterised in that the flexibility reinforcer is located at optical fiber
The outside of band；But it is not limited to above, below, the left side, the right side.
Certainly, the light unit described in any of the above-described embodiment, it is characterised in that the optical fiber is 2 or 4
Or 6 or 8 or 10 or 12 or 18 or 24.
Certainly, the light unit described in any of the above-described embodiment, it is characterised in that the optical fiber is single mode optical fiber
Or multimode fibre.
Certainly, the light unit described in any of the above-described embodiment, it is characterised in that the tack coat is heat reactive resin
Or ultraviolet-curing resin.
Certainly, the light unit described in any of the above-described embodiment, it is characterised in that it is described flexibility reinforcer material be
Aramid yarn or glass fiber yarn or polyamide staple fibre spun yarn or Polyester Yarns.
Certainly, the light unit described in any of the above-described embodiment, it is characterised in that the unit sheath be by comprising with
What the material of lower parts by weight was formed：Corvic：40~50 parts；Dioctyl phthalate：11~16 parts；O-phthalic
Sour diisodecyl ester：3~4 parts；Epoxidized soybean oil：3~4 parts；Calcium-zinc composite stabilizing agent：3~4 parts；Paraffin：6~8 parts；Stearic acid：
2~6 parts；Kaolin：8~12 parts；Antioxidant 1010：0.2~0.8 part；Irgasfos 168：0.2~0.8 part；Calcium carbonate：3~6
Part；Aluminium hydroxide：4~8 parts；Polypropylene：6~7 parts.
In the present invention, there is the light unit of 12 optical fibers, it is high using the structure of embodiment 1, width 4.5mm
Spend for 1.8mm, light unit is subjected to the pressure of 4500N/100mm, duration in width, the i.e. above-below direction of light unit
For 1 it is small when, the change maximum of the transmission performance of optical fiber is 0.02dB/km.
In the present invention, there is the light unit of 2-10 roots and 18,24 optical fibers, using the structure of embodiment 1, make light
Unit is subjected to the pressure of 4500N/100mm in width, the i.e. above-below direction of light unit, and when the duration is 1 small, light guide is fine
The change maximum of the transmission performance of dimension is not less than 0.03dB/km.
In the present invention, there is the light unit of 2-24 root optical fibers, using the structure of embodiment 2, make light unit in width
Spend direction, i.e. the above-below direction of light unit is subjected to the pressure of 6000N/100mm, when the duration is 1 small, the transmission of optical fiber
The change maximum of performance is not less than 0.02dB/km.
In the present invention, there is the light unit of 2-24 root optical fibers, using the structure of embodiment 3, make light unit in width
Spend direction, i.e. the above-below direction of light unit is subjected to the pressure of 6000N/100mm, when the duration is 1 small, the transmission of optical fiber
The change maximum of performance is not less than 0.015dB/km.
In the present invention, just because of the special formulation of unit sheath so that product is provided with more excellent lateral pressure resistant performance,
Using conventional polyvinyl chloride, low-smoke non-halogen flame-retardant polyethylene, height degree polyethylene, medium density polyethylene, although in 4500N/
Under the pressure of 100mm, the change maximum for also having reached the transmission performance of optical fiber is no more than the target of 0.03dB/km, but
Just 1 minute its duration；In addition, the special formulation of unit sheath so that unit sheath has more excellent elasticity, so that light
Unit is provided with more excellent fire resisting, fire resistance.
In light unit in the present invention, since flexible reinforcer to be located to the outside of fibre ribbon；Optical fiber is located at optical fiber
In band, therefore, the resistance to compression protective capability for optical fiber is stronger, and unit sheath is being subjected to the pressure condition of 4500N/100mm
Under, the changing value of the transmission performance of optical fiber is not less than 0.03dB/km；The light unit of the present invention is excellent with anti-side pressure
It is good, the product flexibility main beneficial effect such as well.
Embodiment 4
See Fig. 7, a kind of optical cable, it is characterised in that it by centrally located unit casing 50, around unit sleeve twisted
More power transmission lines of conjunction, the insulating layer 53 being coated on outside power transmission line, the protective layer being coated on outside insulating layer 53
54 and the restrictive coating 55 that is coated on outside protective layer of extrusion molding form；There is any of the above-described embodiment within the unit casing
The light unit 3；The power transmission line is by the conductor 51 positioned at internal layer and the insulating outer layer 52 being coated on outside conductor 51
Form.
In Fig. 7, power transmission line is 8, can also be other more, such as 2,3,5,6, etc. certainly；When
So, in order to which the complete and/or rounding of structure, some power transmission lines therein can also be by solid or hollow gasket for packing institute's generations
Replace, certainly, the material of gasket for packing can be polypropylene or polyethylene or expanded material or other suitable materials；The light unit
3 can be one, two or more other, when light unit has more, be placed in a manner of stacking in unit casing 50；Due to list
First casing 50 not other liquid fillers in addition to light unit, therefore, are very suitable for indoor use.Unit casing
Diameter and wall thickness are changed with the quantity of optical fiber in the quantity of light unit, light unit, it is ensured that in the disk of unit casing
Unit casing will not be flattened during, in general, the wall thickness of unit casing is no less than 0.6mm.
Optical cable described above, it is characterised in that the material of the insulating layer for polyester belt or waterstop or non-woven fabrics or
Mica tape.
Optical cable described above, it is characterised in that the material of the unit casing is polyvinyl chloride or low-smoke non-halogen flame-retardant
Polyethylene or medium density polyethylene or high density polyethylene (HDPE).
Optical cable described above, it is characterised in that the material of the restrictive coating gathers for polyvinyl chloride or low-smoke non-halogen flame-retardant
Ethene or medium density polyethylene or high density polyethylene (HDPE).
Optical cable described above, it is characterised in that the sectional area of the conductor is 0.5 square millimeter to 20 square millimeters；
Than more preferably conductor cross sectional area for 1.5 square millimeters, 2 square millimeters, 2.5 square millimeters, 4 square millimeters, 6 square millimeters, 8
Square millimeter, 10 square millimeters, 12 square millimeters.
In the optical cable of the present invention, since unit casing is placed on center, unit casing have neither part nor lot in it is twisted, therefore,
When production is abnormal after stripping cable core, light unit in unit casing and unit casing still can normal use, greatly save into
This；It only placed an at least light unit in unit casing, be dry construction, therefore, easy to construct, and be adapted in higher temperature
Lower work；The optical cable of the present invention has following main beneficial effect：Light unit repeats utilization, suitable for hot environment.
The present invention is not limited to above-mentioned preferred forms, it will be appreciated that design of the invention can be by other a variety of shapes
Formula is implemented to use, they are also fallen within protection scope of the present invention.
Claims (6)
1. light unit, it is characterised in that it is by a fibre ribbon（1）, flexible reinforcer, unit sheath（3）Form；Fibre ribbon
By the optical fiber of the more placements that are parallel to each other（11）And envelope the tack coat of optical fiber（12）Form, adjacent light guide is fine
It is non-touching between dimension；Flexible reinforcer is located at the outside of fibre ribbon；Unit sheath coats fibre ribbon, flexible reinforcer
Firmly；The upper surface and the lower surface of unit sheath forms direction towards the groove of fibre ribbon；The unit sheath be by comprising with
What the material of lower parts by weight was formed：Corvic：40 parts；Dioctyl phthalate：11 parts；Two isodecyl of phthalic acid
Ester：3 parts；Epoxidized soybean oil：3 parts；Calcium-zinc composite stabilizing agent：3 parts；Paraffin：6 parts；Stearic acid：2 parts；Kaolin：8 parts；Antioxygen
Agent 1010：0.2 part；Irgasfos 168：0.2 part；Calcium carbonate：3 parts；Aluminium hydroxide：4 parts；Polypropylene：6 parts；The flexible reinforcement
Part be located above fibre ribbon and below；The optical fiber for 2 or 4 or 6 or 8 or 10 or 12 or 18 or
24；The optical fiber is single mode optical fiber or multimode fibre；The tack coat is heat reactive resin or ultraviolet-curing resin；Institute
The material for stating flexible reinforcer is aramid yarn or glass fiber yarn or polyamide staple fibre spun yarn or Polyester Yarns.
2. light unit according to claim 1, it is characterised in that it has 12 optical fibers, width 4.5mm, height
For 1.8mm, light unit is subjected to the pressure of 4500N/100mm in width, when the duration is 1 small, the transmission of optical fiber
The change maximum of performance is 0.02dB/km.
3. light unit according to claim 1, it is characterised in that it has 2 or 4 or 6 or 8 or 10 or 12
Root or 18 or 24 optical fibers, light unit are subjected to the pressure of 4500N/100mm in width, and the duration is small for 1
When, the change maximum of the transmission performance of optical fiber is not less than 0.03dB/km.
4. optical cable, it is characterised in that it is by centrally located unit casing（50）, more electric power being twisted around unit casing
Transmission line, the insulating layer being coated on outside power transmission line（53）, be coated on insulating layer（53）Outside protective layer（54）And squeeze
Modeling is coated on the restrictive coating outside protective layer（55）Form；Within the unit casing have claim 1 or claim 2 or
Light unit described in claim 3；The power transmission line is by the conductor positioned at internal layer（51）And it is coated on conductor（51）Outside
Insulating outer layer（52）Form.
5. optical cable according to claim 4, it is characterised in that the material of the insulating layer for polyester belt or waterstop or
Non-woven fabrics or mica tape；The material of the unit casing is polyvinyl chloride or low-smoke non-halogen flame-retardant polyethylene or medium density polyethylene
Or high density polyethylene (HDPE)；The material of the restrictive coating for polyvinyl chloride or low-smoke non-halogen flame-retardant polyethylene or medium density polyethylene or
High density polyethylene (HDPE)；The sectional area of the conductor is 0.5 square millimeter to 20 square millimeters.
6. optical cable according to claim 4, it is characterised in that the conductor cross sectional area is 1.5 square millimeters or 2 squares
Millimeter or 2.5 square millimeters or 4 square millimeters or 6 square millimeters or 8 square millimeters or 10 square millimeters or 12 square millimeters.
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| CN201510414830.3A CN104977677B (en) | 2014-01-02 | 2014-01-02 | Light unit and the optical cable using the light unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510414830.3A CN104977677B (en) | 2014-01-02 | 2014-01-02 | Light unit and the optical cable using the light unit |
| CN201410000869.6A CN103744151B (en) | 2014-01-02 | 2014-01-02 | Optical unit and optical cable using the same |
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| CN201410000869.6A Division CN103744151B (en) | 2014-01-02 | 2014-01-02 | Optical unit and optical cable using the same |
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| CN104977677A CN104977677A (en) | 2015-10-14 |
| CN104977677B true CN104977677B (en) | 2018-05-01 |
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| CN201510414835.6A Active CN104977678B (en) | 2014-01-02 | 2014-01-02 | Light unit and the optical cable using the light unit |
| CN201510414830.3A Active CN104977677B (en) | 2014-01-02 | 2014-01-02 | Light unit and the optical cable using the light unit |
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| CN104479191A (en) * | 2014-11-17 | 2015-04-01 | 安徽安能电缆有限公司 | Waterproof chemical-corrosion-resistant heat tracing cable sheath material and preparation method thereof |
| CN105629408B (en) * | 2016-01-27 | 2018-08-17 | 江苏长城电缆有限公司 | A kind of robot optical cable and its manufacturing method |
| CN108020891A (en) * | 2016-10-31 | 2018-05-11 | 西安北方光通信有限责任公司 | A kind of metal band type optical cable production. art of falling probationer nurse |
| EP3546999B1 (en) * | 2016-12-01 | 2024-03-20 | Fujikura Ltd. | Optical cable and outer skin removal method |
| CN108318988B (en) * | 2018-05-03 | 2024-05-03 | 西安西古光通信有限公司 | Ribbon optical fiber |
| CN108387987B (en) * | 2018-05-03 | 2024-05-03 | 西安西古光通信有限公司 | Layer stranded type ribbon optical cable |
| CN110501790A (en) * | 2018-05-17 | 2019-11-26 | 武汉通西域光电科技有限公司 | A kind of magnetism optical fiber cable |
| EP3657068A1 (en) * | 2018-11-22 | 2020-05-27 | ZKW Group GmbH | Device for the creation and emission of light |
| CN109782403B (en) * | 2019-03-04 | 2021-03-16 | 烽火通信科技股份有限公司 | Invisible photoelectric composite optical cable and manufacturing method thereof |
| CN115524784B (en) * | 2022-11-23 | 2023-03-17 | 长飞光纤光缆股份有限公司 | Self-assembled ultra-dense stacked optical fiber ribbon, preparation method thereof, optical unit and optical fiber ribbon cable |
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- 2014-01-02 CN CN201510414835.6A patent/CN104977678B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104977678A (en) | 2015-10-14 |
| CN104977677A (en) | 2015-10-14 |
| CN104977679B (en) | 2017-11-10 |
| CN103744151B (en) | 2015-10-21 |
| CN103744151A (en) | 2014-04-23 |
| CN104977679A (en) | 2015-10-14 |
| CN104977678B (en) | 2017-11-28 |
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