CN211375121U - Honeycomb optical fiber bundle and optical cable - Google Patents
Honeycomb optical fiber bundle and optical cable Download PDFInfo
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- CN211375121U CN211375121U CN201922187045.5U CN201922187045U CN211375121U CN 211375121 U CN211375121 U CN 211375121U CN 201922187045 U CN201922187045 U CN 201922187045U CN 211375121 U CN211375121 U CN 211375121U
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- fiber bundle
- optical fiber
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- sleeve
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Abstract
The utility model discloses a honeycomb optical fiber bundle and optical cable, the honeycomb optical fiber bundle includes a plurality of optical fiber bundle units, the appearance structure of a plurality of said optical fiber bundle units is the same, and is equilateral hexagon structure, the adjacent sides of any two adjacent optical fiber bundle units are closely laminated and arranged, a plurality of said optical fiber bundle units are arranged in the mode similar to honeycomb structure; the honeycomb optical fiber bundle cable comprises a honeycomb optical fiber bundle, a sleeve, an outer sheath and a reinforcing piece, and is characterized in that the honeycomb optical fiber bundle is arranged in the sleeve, and the outer sheath is extruded outside the sleeve; a plurality of reinforcing pieces are arranged inside the outer sheath along the axial direction of the outer sheath. The utility model discloses the fiber bundle unit is made equilateral hexagon to fiber bundle is arranged in the mode of similar honeycomb structure, and the fiber density that makes unit area is bigger, and the optical cable is thinner, puts more optic fibre in limited pipeline hole, and the communication pipeline resource obtains more efficient utilization.
Description
Technical Field
The utility model relates to an optical cable manufacturing field, concretely relates to honeycomb form optic fibre bundle optical cable.
Background
At present, the communication industry in China is developed at a high speed, and under the guidance of a broadband Chinese strategy, the construction of a 'full optical network' is strongly promoted, 4G networks are completely and deeply developed, 5G networks are gradually developed, and China enters a high-speed channel for information development. With the arrival of a big data era, cloud computing data centers, intelligent buildings and the application of the internet of things, core trunk networks, local area networks, access networks and machine rooms of optical fiber communication put forward higher requirements on the fiber core capacity of optical cables, and more optical cables with large core number are applied to meet the requirements of continuously increasing information transmission quantity and rapidly developing urban broadband network construction.
The large-core-number optical cable with small outer diameter, large fiber capacity, convenient construction and maintenance and small attenuation loss can effectively relieve the pipeline resource shortage caused by the expansion of the urban communication pipe network, meet the requirement of the continuously increased high-density optical fiber core number and greatly improve the utilization rate of the fiber core.
In order to further increase the capacity of the optical fiber in the ferrule, the optical fiber is bundled in the prior art, but the existing optical fiber bundles are all in a circular structure, a gap exists between the optical fiber bundles in the ferrule, and the space occupation ratio of the optical fiber bundles in the ferrule is low.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a honeycomb form fiber bundle and optical cable, fiber bundle unit make equilateral hexagon to the mode of similar honeycomb structure carries out the fiber bundle and arranges, makes unit area's fiber density bigger, and the optical cable is thinner, puts more optic fibre in limited pipeline is downthehole, and the communication pipeline resource obtains more efficient utilization.
In order to solve the technical problem, the utility model provides a honeycomb form fiber bundle, a serial communication port, including a plurality of fiber bundle units, it is a plurality of the appearance structure of fiber bundle unit is the same, is equilateral hexagon structure, and the adjacent side of two arbitrary adjacent fiber bundle units closely laminates the setting, and is a plurality of the fiber bundle unit is arranged with similar honeycomb structure's mode.
In a preferred embodiment of the present invention, the optical fiber bundle unit further includes a fiber core and a bundled coating layer covering the fiber core, and a plurality of the fiber cores are bonded into a bundle by the bundled coating layer.
In a preferred embodiment of the present invention, the fiber core is closely packed in the bundled coating.
In a preferred embodiment of the present invention, the coating material of the bundle coating layer is a resin.
In order to solve the technical problem, the utility model also provides a honeycomb optical fiber bundle cable, including above-mentioned honeycomb optical fiber bundle, sleeve pipe, oversheath and reinforcement, its characterized in that, the honeycomb optical fiber bundle sets up in the sleeve pipe, the oversheath extrusion molding outside the sleeve pipe; a plurality of reinforcing pieces are arranged inside the outer sheath along the axial direction of the outer sheath.
The present invention provides a preferable embodiment, further comprising the reinforcing member comprises a first FRP reinforcing member and a second FRP reinforcing member, the first FRP reinforcing member and the second FRP reinforcing member are symmetrically disposed along the long axis of the outer sheath.
In a preferred embodiment of the present invention, the sleeve is provided with a water-blocking yarn, and the water-blocking yarn is disposed in a space between the outer side of the honeycomb optical fiber bundle and the inner wall of the sleeve.
In a preferred embodiment of the present invention, the outer sheath is made of a low smoke zero halogen sheath material.
The utility model has the advantages that:
the utility model discloses a honeycomb form fiber bundle makes the fiber bundle unit equilateral hexagon to fiber bundle is arranged to the mode of similar honeycomb structure, compares in the prior art circular shape fiber bundle unit, and the adjacent limit of two adjacent equilateral hexagon fiber bundle units closely laminates the setting, makes seamless butt joint between the fiber bundle unit, makes unit area's optical fiber density bigger.
The utility model discloses a honeycomb optical fiber bundle cable places above-mentioned honeycomb optical fiber bundle in the cover intraductal, has improved the duty cycle of intraductal optic fibre of cover, under the condition of same optic fibre quantity, the utility model discloses a honeycomb optical fiber bundle cable is thinner, puts more optic fibre in limited pipeline is downthehole, and communication pipeline resource obtains more efficient utilization.
Drawings
FIG. 1 is a schematic view of a honeycomb optical fiber bundle according to the present invention;
fig. 2 is a schematic structural diagram of an optical fiber bundle unit according to the present invention;
fig. 3 is a schematic structural diagram of the honeycomb-shaped optical fiber bundle cable of the present invention.
The reference numbers in the figures illustrate: 1. an optical fiber bundle unit; 11. a fiber core; 12. coating in bundles; 2. a sleeve; 3. an outer sheath; 4. a reinforcement; 5. a water blocking yarn.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1, the utility model discloses an embodiment of honeycomb form optical fiber bundle, a honeycomb form optical fiber bundle, including a plurality of optical fiber bundle units 1, it is a plurality of the appearance structure of optical fiber bundle unit 1 is the same, is equilateral hexagon structure, and the adjacent side of two arbitrary adjacent optical fiber bundle units 1 closely laminates the setting, and is a plurality of optical fiber bundle unit 1 arranges with similar honeycomb structure's mode, makes seamless butt joint between the optical fiber bundle unit 1, makes unit area's optical fiber density bigger.
Referring to fig. 2, the optical fiber bundle unit 1 includes fiber cores 11 and a bundled coating 12 covering the fiber cores 11, a plurality of the fiber cores 11 are bonded into a bundle by the bundled coating 12, the fiber cores 11 are tightly packed in the bundled coating 12, and the tight packing is that the cross sections of the plurality of the fiber cores tend to be as close as possible, that is, more fiber cores are accommodated in the smallest space, and the diameter of the optical fiber bundle is as small as possible.
Since the honeycomb-shaped optical fiber bundle has a high optical fiber density, it is necessary to have a high bending property of the optical fiber itself when bending the optical fiber, and g.657a2 optical fiber is preferably used for the core 11. The G.657A2 optical fiber has excellent bending performance, is suitable for 1260 nm-1625 nm all-band transmission system, has very small attenuation of a bending accessory in a long wavelength band, and has the additional loss of a 1625nm window of only 0.8dB even if the bending radius is 7.5 mm. The advantages of high bandwidth, low attenuation of the single-mode optical fiber, suitability for FTTX medium-short distance transmission and the like can be fully exerted.
The coating of the bundle coating 12 is resin, and the bundle coating 12 plays a role of bundling the fiber cores 11 on one hand and a role of protecting the fiber cores 11 on the other hand, so that the bundle coating 12 needs to meet the following conditions in the production and use processes: easy processing and high melting degree; the thermal expansion coefficient is small, and the size stability is excellent; easy stripping, and the optical fiber bundle unit can be separated without tools in the construction process; high flexural modulus and excellent kink resistance; low moisture absorption; excellent hydrolysis resistance; high compressive strength and sufficient anti-friction ability.
Referring to fig. 3, an embodiment of a honeycomb optical fiber bundle cable according to the present invention includes the above-mentioned honeycomb optical fiber bundle, a sleeve 2, an outer sheath 3 and a reinforcing member 4, wherein the honeycomb optical fiber bundle is disposed in the sleeve 2, and the outer sheath 3 is extruded outside the sleeve 2; oversheath 3 is inside sets up a plurality of reinforcements 4 along oversheath 3's axis direction, places above-mentioned honeycomb optical fiber bundle in sleeve pipe 2, has improved the duty cycle of 2 intraductal optic fibre of cover, under the condition of same optic fibre quantity, the utility model discloses a honeycomb optical fiber bundle optical cable is thinner, puts more optic fibre in limited pipeline is downthehole, and communication pipeline resource obtains more efficient utilization
Preferably, the reinforcing member 4 is made of FRP (fiber reinforced plastic), i.e., a non-metal reinforcing member, the reinforcing member 4 includes a first FRP reinforcing member and a second FRP reinforcing member, and the first FRP reinforcing member and the second FRP reinforcing member are symmetrically arranged along the long axis of the outer sheath 3, wherein the FRP has the advantages of light weight, high strength, good corrosion resistance, good electric heating performance, good designability, excellent manufacturability and the like, so that the tensile property of the honeycomb optical fiber bundle cable is improved, and the first FRP reinforcing member and the second FRP reinforcing member are symmetrically arranged, so that the same stress on two sides of the optical cable is ensured, and the optical cable is prevented from being bent due to the influence of the reinforcing member stress.
Preferably, a water blocking yarn 5 is arranged in the sleeve 2, the water blocking yarn 5 is arranged in a gap between the outer side of the honeycomb-shaped optical fiber bundle and the inner wall of the sleeve 2, the water blocking yarn 5 can play a role in longitudinally blocking water, and the water blocking yarn 5 can play a role in absorbing water and blocking water through water absorption and expansion.
Preferably, the outer sheath 3 is a low smoke zero halogen polyolefin sheath molded with a low smoke zero halogen polyolefin material (LSZH). The LSZH material is adopted, so that the outer sheath 3 has the advantages of high flame retardance, low shrinkage, low temperature resistance, high temperature resistance, corrosion resistance, sunlight irradiation resistance, aging resistance, cracking resistance, environmental protection, uniform color, proper hardness, easy processing, bending resistance, high thin-wall processing, strength, rat bite prevention, low cost price and the like.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (8)
1. The utility model provides a honeycomb form optical fiber bundle, its characterized in that includes a plurality of optical fiber bundle units, and is a plurality of the appearance structure of optical fiber bundle unit is the same, is equilateral hexagon structure, and the adjacent side of two arbitrary adjacent optical fiber bundle units closely laminates the setting, and is a plurality of the optical fiber bundle unit is arranged with the mode of similar honeycomb structure.
2. The honeycomb optical fiber bundle of claim 1, wherein the optical fiber bundle unit includes fiber cores and a bundle coating covering the fiber cores, and a plurality of the fiber cores are bound in a bundle by the bundle coating.
3. The honeycomb fiber bundle of claim 2, wherein the cores are closely packed within the bundled coating.
4. The honeycomb optical fiber bundle of claim 3 wherein the coating of the bundle coating is a resin.
5. A honeycomb fiber bundle optical cable comprising the honeycomb fiber bundle of any one of claims 1-4, a sleeve, an outer jacket, and strength members, wherein the honeycomb fiber bundle is disposed within the sleeve and the outer jacket is extruded outside the sleeve; a plurality of reinforcing pieces are arranged inside the outer sheath along the axial direction of the outer sheath.
6. The honeycomb fiber optic bundle cable of claim 5, wherein the strength members comprise first FRP strength members and second FRP strength members disposed symmetrically along the major axis of the outer jacket.
7. The honeycomb optical fiber bundle cable of claim 5 wherein water blocking yarns are disposed within the sleeve, the water blocking yarns being disposed in a space between an outer side of the honeycomb optical fiber bundle and an inner wall of the sleeve.
8. The honeycomb fiber optic bundle cable of claim 5, wherein the outer jacket is made of a low smoke zero halogen jacket material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922187045.5U CN211375121U (en) | 2019-12-09 | 2019-12-09 | Honeycomb optical fiber bundle and optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922187045.5U CN211375121U (en) | 2019-12-09 | 2019-12-09 | Honeycomb optical fiber bundle and optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211375121U true CN211375121U (en) | 2020-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922187045.5U Active CN211375121U (en) | 2019-12-09 | 2019-12-09 | Honeycomb optical fiber bundle and optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211375121U (en) |
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2019
- 2019-12-09 CN CN201922187045.5U patent/CN211375121U/en active Active
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