CN117111243B - Flexible optical fiber ribbon optical cable and manufacturing method thereof - Google Patents
Flexible optical fiber ribbon optical cable and manufacturing method thereof Download PDFInfo
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- CN117111243B CN117111243B CN202311375542.2A CN202311375542A CN117111243B CN 117111243 B CN117111243 B CN 117111243B CN 202311375542 A CN202311375542 A CN 202311375542A CN 117111243 B CN117111243 B CN 117111243B
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- optical fiber
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- spool
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 73
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 230000003287 optical effect Effects 0.000 title description 4
- 239000011241 protective layer Substances 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims abstract description 7
- 230000003139 buffering effect Effects 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 239000000835 fiber Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013308 plastic optical fiber Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- 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
- G02B6/441—Optical cables built up from sub-bundles
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to the technical field of optical fiber ribbon cables, in particular to a flexible optical fiber ribbon cable and a manufacturing method thereof, wherein the flexible optical fiber ribbon cable comprises a spool for installing optical fibers and further comprises the following components: the positioning rings are clamped on the surface of the wire tube at equal intervals, so that when the optical fibers enter the wire tube, the wire tube is positioned, and the wire tube is driven to deviate; the protective ring is sleeved on the surface of the positioning ring and used for fixing the position of the positioning ring and driving the positioning ring to deflect, and the protective ring is formed by combining two groups of semicircular plates with the same shape; and the protective layer is sleeved outside the protective ring, and is formed by combining two groups of identical arc plates so as to play a role in buffering, and the surface of the protective layer is covered with an insulating layer. The invention ensures that the optical fiber cable can buffer and unload the external acting force when the optical fiber cable receives the external acting force through the matching use of the parts, ensures the integrity of the optical fibers in the optical fiber cable and ensures the normal transmission of data.
Description
Technical Field
The invention relates to the technical field of optical fiber ribbon cables, in particular to a flexible optical fiber ribbon cable and a manufacturing method thereof.
Background
An optical fiber cable is a communication cable consisting of two or more glass or plastic optical fiber cores, which are located in a protective coating, covered by a plastic PVC outer sleeve, with advantages over conventional communication lines; fiber optic communication networks can transmit significantly more information at significantly increased speeds compared to conventional wired networks. Worldwide, the amount of data transmitted over fiber optic cables continues to increase. This is particularly true in data centers due to the expansion of cloud computing, which requires the reception and transmission of data in a limited physical space, and thus, the demand for optical fibers is also increasing.
In the production process of the existing optical fiber, the prefabricated rod is firstly arranged in a heating furnace at the top end of a wire drawing machine to be heated, so that the viscosity of the tip end of the rod body is lowered, the rod body gradually sags and becomes a bare optical fiber by self weight, and the bare optical fiber passes through a laser diameter measuring monitor and then enters a coating curing system to be wound; when the optical fiber cable is manufactured, a plurality of groups of optical fibers are combined and wrapped by plastic, but when the optical fiber cable is manufactured, the internal optical fibers can only be prevented from being damaged by the plastic covered by the external, and when the optical fiber cable is subjected to external acting force, the internal optical fibers are extruded to easily generate the phenomena of breakage and fracture, so that the data transmission is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a flexible optical fiber ribbon cable which can effectively solve the problems that when the optical fiber cable is extruded from the outside, the optical fiber inside cannot be well protected, the optical fiber is easy to damage and break, and the data transmission is affected.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the invention provides a flexible optical fiber ribbon cable comprising a spool for mounting optical fibers, further comprising: the positioning rings are clamped on the surface of the wire tube at equal intervals, so that when the optical fibers enter the wire tube, the wire tube is positioned, and the wire tube is driven to deviate; the protective ring is sleeved on the surface of the positioning ring and used for fixing the position of the positioning ring and driving the positioning ring to deflect, and the protective ring is formed by combining two groups of semicircular plates with the same shape; and the protective layer is sleeved outside the protective ring and is formed by combining two groups of identical arc plates so as to play a role in buffering, and the surface of the protective layer is covered with an insulating layer.
Further, the spool is made of silicon rubber, the section of the spool is honeycomb-shaped, and a plurality of groups of heat dissipation holes are formed in the surface of the spool in an equidistant penetrating mode.
Further, the shape of the positioning ring is matched with the surface of the spool, and a plurality of groups of clamping grooves are formed in the surface of the positioning ring in an equidistant surrounding mode.
Further, a plurality of groups of limiting rods are equidistantly arranged on the inner wall of the protective ring, and the limiting rods are inserted into the clamping grooves.
Further, a plurality of groups of grooves are formed in the surface of the protection ring at equal intervals, and the grooves are of right trapezoid structures.
Further, the inner wall of the protective layer is provided with a plurality of groups of trigger rods, the lower ends of the trigger rods are located right above the inclined planes of the grooves, a buffer cushion fixedly connected with the inner wall of the protective layer is arranged between every two groups of trigger rods, and the lower ends of the buffer cushions are in contact with the upper surface of the protective ring.
A method of manufacturing a flexible optical fiber ribbon cable, the method comprising the steps of:
s1: firstly, placing the preform in a heating furnace at the top end of a wire drawing machine, when the furnace temperature is increased to 2200 ℃, the viscosity of the tip of the rod body is lowered, the rod body gradually sags and becomes a bare optical fiber by self weight, and the bare optical fiber passes through a laser diameter measuring monitor and then enters a coating and curing system;
s2: when manufacturing the optical fiber, uniformly clamping the positioning rings on the surface of the spool at intervals, sequentially installing the protection rings and the protection layers according to the installation positions of the positioning rings, and then pulling the cured optical fiber to the inside of the spool through pulling equipment;
s3: after the optical fiber is pulled, the protective layer wrapped with the protective ring, the positioning ring and the spool is led into an extruder to be wrapped by plastic, and then is led into water to be cooled.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
1. according to the invention, the protective layer and the buffer pad are arranged, so that when the optical fiber cable receives external acting force, the acting force can be buffered through the deformation of the protective layer and the buffer pad, and the damage to the optical fiber caused by the external acting force is avoided.
2. According to the invention, the positioning ring, the protecting ring and the limiting rod are arranged, so that when the protective layer and the buffer pad cannot completely buffer external acting force, the inclined surface of the groove can be extruded through the triggering rod, the protecting ring can drive the spool clamped with the positioning ring to deflect, and redundant external force is buffered, so that the integrity of optical fibers in the spool is realized, and the transmission of data is ensured.
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 evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the overall structure of the conduit of the present invention;
FIG. 4 is a schematic view of a retaining ring according to the present invention;
FIG. 5 is a schematic plan view of the overall structure of the present invention;
FIG. 6 is a schematic plan view in cross section of the overall structure of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6B according to the present invention;
fig. 8 is a schematic diagram of the overall structure of the present invention.
Reference numerals: 1. a conduit; 101. a heat radiation hole; 2. a positioning ring; 201. a clamping groove; 3. a guard ring; 301. a groove; 4. a limit rod; 5. a protective layer; 501. a trigger lever; 502. a cushion pad; 6. an insulating layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is further described below with reference to examples.
Examples:
the flexible optical fiber ribbon optical cable comprises a spool 1 for installing optical fibers, wherein the spool 1 is made of silicon rubber, the section of the spool 1 is honeycomb-shaped, the optical fibers inserted into the spool 1 can be protected by arranging the spool 1 made of flexible materials, and meanwhile, the optical fibers can be driven to deform, so that external force is prevented from directly acting on the surfaces of the optical fibers; it should be noted that the shape of the conduit 1 can be changed according to the number of the optical fibers, and is not limited to the honeycomb structure; the surface equidistance of spool 1 runs through and has seted up multiunit louvre 101, through setting up multiunit louvre 101, and then can discharge the heat that produces the in-process of optic fibre transmission data, avoids the heat to pile up, causes the inside temperature of optic fibre optical cable to rise, influences the transmission of data.
The optical fiber positioning device further comprises a plurality of groups of positioning rings 2 which are clamped on the surface of the spool 1 at equal intervals, so that when the optical fiber enters the spool 1, the spool 1 is positioned and the spool 1 is driven to deviate; the shape of the positioning ring 2 is matched with the surface of the spool 1, and by arranging the positioning ring 2, the stability of the interior of the spool 1 can be ensured when the optical fibers are inserted, and the phenomenon that the optical fibers are bent when moving in the spool 1 is avoided; the surface equidistance of holding ring 2 encircles and has offered multiunit draw-in groove 201, through setting up draw-in groove 201, and then can carry out joint cooperation with gag lever post 4, realizes the purpose of location on the one hand, on the other hand can take place the deflection under the effect of gag lever post 4, realizes the purpose of protection optic fibre.
With reference to fig. 1-2 and fig. 6-7, the protective ring 3 sleeved on the surface of the positioning ring 2 is arranged to fix the position of the positioning ring 2 and drive the positioning ring 2 to deflect, and can also play a role in protection; the protection ring 3 is formed by combining two groups of semicircular plates with the same shape, and the protection ring 3 is arranged into a structure of two groups of semicircular plates, so that the installation is convenient;
wherein, multiunit gag lever post 4 is installed to the inner wall equidistance of protection ring 3, and the inside of draw-in groove 201 is located in the gag lever post 4 insertion, through setting up gag lever post 4, and then can connect locating ring 2 and protection ring 3 to locating ring 2 can follow the synchronous action of protection ring 3. The surface equidistance of protection ring 3 encircles and has offered multiunit recess 301, and recess 301 is right trapezoid structure, through setting up recess 301, and then can mutually support with trigger lever 501 through its inclined plane, realizes the purpose of extrusion deflection.
With reference to fig. 1-8, and a protective layer 5 sleeved outside the protective ring 3, wherein the protective layer 5 is formed by combining two groups of identical arc plates so as to play a role of buffering; the inner wall of the protective layer 5 is provided with a plurality of groups of trigger rods 501, the lower ends of the trigger rods 501 are positioned right above the inclined planes of the grooves 301, and the trigger rods 501 are arranged, so that the inclined planes of the grooves 301 can be extruded through downward movement of the trigger rods 501, and the protective ring 3 is driven to deflect;
wherein, a buffer pad 502 fixedly connected with the inner wall of the protective layer 5 is arranged between every two groups of trigger rods 501, and the lower end of the buffer pad 502 is contacted with the upper surface of the protective ring 3, and the buffer pad 502 is arranged, so that the effect of buffering external force can be achieved; the surface of the protective layer 5 is covered with an insulating layer 6.
Specifically, when the optical fiber cable is extruded by an external force, the protective layer 5 is extruded first, and meanwhile, the buffer pad 502 starts to deform and generate a reaction force to start to buffer the external force; when the external forces are counteracted by the cushion pad 502, the optical fibers inside the fiber optic cable are protected;
when the deformed buffer pad 502 cannot completely offset external acting force, the deformation of the protective layer 5 synchronously drives the trigger rod 501 to start moving downwards and contact with the inclined surface of the groove 301, and starts to extrude with the inclined surface of the groove 301 under the action of redundant external acting force, so that the protective ring 3 starts to deflect, and the protective ring 3 can drive the positioning ring 2 to synchronously deflect due to the insertion fit between the limiting rod 4 arranged on the inner wall of the protective ring 3 and the clamping groove 201, and the positioning ring 2 is clamped on the surface of the spool 1, so that the spool 1 is driven to deflect, the optical fiber in the spool 1 synchronously deflects, the external acting force is prevented from directly acting on the surface of the optical fiber, the purpose of unloading force is realized, the integrity of the optical fiber is ensured, and the normal transmission of the data can be ensured.
A method of manufacturing a flexible optical fiber ribbon cable, the method comprising the steps of:
s1: firstly, placing the preform in a heating furnace at the top end of a wire drawing machine, when the furnace temperature is increased to 2200 ℃, the viscosity of the tip of the rod body is lowered, the rod body gradually sags and becomes a bare optical fiber by self weight, and the bare optical fiber passes through a laser diameter measuring monitor and then enters a coating and curing system;
s2: the method comprises the steps of (1) when manufacturing optical fibers, clamping the positioning rings 2 on the surface of the spool 1 at equal intervals, then utilizing existing clamping equipment to assemble and install the protective rings 3 on the surface of the positioning rings 2 according to the installation positions of the positioning rings, enabling the limiting rods 4 to be inserted into the clamping grooves 201, then installing the protective layers 5 outside the protective rings 3 through the clamping equipment, enabling the trigger rods 501 to be located right above the grooves 301, and then pulling the solidified optical fibers into the spool 1 through existing pulling equipment;
s3: after the optical fiber is pulled, the protective layer 5 wrapped with the protective ring 3, the positioning ring 2 and the spool 1 is introduced into an extruder, the protective layer 5 is wrapped and output by plastic in the extruder, and then the protective layer 5 which is output and wrapped with the plastic is introduced into water for cooling.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. A flexible optical fiber ribbon cable comprising a spool (1) for mounting optical fibers, characterized in that it further comprises:
the optical fiber positioning device comprises a plurality of groups of positioning rings (2) which are clamped on the surface of a spool (1) at equal intervals, wherein the shape of each positioning ring (2) is matched with the surface of the spool (1), and a plurality of groups of clamping grooves (201) are formed in the surface of each positioning ring (2) in an equidistant surrounding mode, so that when the optical fiber enters the spool (1), the spool (1) is positioned, and the spool (1) is driven to deviate;
the protection ring (3) is sleeved on the surface of the positioning ring (2) and is used for fixing the position of the positioning ring (2) and driving the positioning ring (2) to deflect, the protection ring (3) is formed by combining two groups of semicircular plates with the same shape, a plurality of groups of grooves (301) are formed in an equidistant ring manner on the surface of the protection ring (3), the grooves (301) are of a right trapezoid structure, a plurality of groups of limiting rods (4) are arranged on the inner wall of the protection ring (3) at equal intervals, and the limiting rods (4) are inserted into the clamping grooves (201);
and cover is established at guard ring (3) outside inoxidizing coating (5), and inoxidizing coating (5) are formed by the combination of two sets of the same arc in order to play the effect of buffering, the inner wall of inoxidizing coating (5) is equipped with multiunit trigger lever (501), the lower extreme of trigger lever (501) is located directly over recess (301) inclined plane, every two sets of all be equipped with between trigger lever (501) with inoxidizing coating (5) inner wall fixed connection's blotter (502), and the lower extreme of blotter (502) and the upper surface contact of guard ring (3), the surface covering of inoxidizing coating (5) has combined insulating layer (6).
2. A flexible optical fiber ribbon cable according to claim 1, wherein the conduit (1) is made of silicone rubber, and the cross section of the conduit (1) is honeycomb-shaped, and a plurality of groups of heat dissipation holes (101) are formed in the surface of the conduit (1) in an equidistant penetrating manner.
3. A method of manufacturing a flexible optical fiber ribbon cable, the method being applied to the flexible optical fiber ribbon cable of claim 2, the method comprising the steps of:
s1: firstly, placing the preform in a heating furnace at the top end of a wire drawing machine, when the furnace temperature is increased to 2200 ℃, the viscosity of the tip of the rod body is lowered, the rod body gradually sags and becomes a bare optical fiber by self weight, and the bare optical fiber passes through a laser diameter measuring monitor and then enters a coating and curing system;
s2: when manufacturing optical fibers, the positioning rings (2) are clamped on the surface of the spool (1) at equal intervals, then the protection rings (3) and the protection layers (5) are sequentially installed according to the installation positions of the positioning rings (2), and the solidified optical fibers are pulled into the spool (1) through the pulling equipment;
s3: after the optical fiber is pulled, the protective layer (5) wrapped with the protective ring (3), the positioning ring (2) and the spool (1) is led into an extruder to be wrapped by plastic, and then is led into water to be cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311375542.2A CN117111243B (en) | 2023-10-23 | 2023-10-23 | Flexible optical fiber ribbon optical cable and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311375542.2A CN117111243B (en) | 2023-10-23 | 2023-10-23 | Flexible optical fiber ribbon optical cable and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117111243A CN117111243A (en) | 2023-11-24 |
| CN117111243B true CN117111243B (en) | 2023-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311375542.2A Active CN117111243B (en) | 2023-10-23 | 2023-10-23 | Flexible optical fiber ribbon optical cable and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN117111243B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003329904A (en) * | 2002-05-09 | 2003-11-19 | Fujikura Ltd | Optical fiber cable |
| JP2003337267A (en) * | 2002-05-17 | 2003-11-28 | Sumitomo Electric Ind Ltd | Optical fiber cable |
| CN209607920U (en) * | 2019-01-24 | 2019-11-08 | 深圳市富视科技有限公司 | A kind of aerial insulated cable |
| CN112433321A (en) * | 2020-12-22 | 2021-03-02 | 宿迁永泰邦辰知识产权运营管理有限公司 | Optical fiber cable with long service life |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030086665A1 (en) * | 2001-11-06 | 2003-05-08 | Alcatel | High-fiber-density cable with buffer cells shaped as skewed radial sectors |
-
2023
- 2023-10-23 CN CN202311375542.2A patent/CN117111243B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003329904A (en) * | 2002-05-09 | 2003-11-19 | Fujikura Ltd | Optical fiber cable |
| JP2003337267A (en) * | 2002-05-17 | 2003-11-28 | Sumitomo Electric Ind Ltd | Optical fiber cable |
| CN209607920U (en) * | 2019-01-24 | 2019-11-08 | 深圳市富视科技有限公司 | A kind of aerial insulated cable |
| CN112433321A (en) * | 2020-12-22 | 2021-03-02 | 宿迁永泰邦辰知识产权运营管理有限公司 | Optical fiber cable with long service life |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117111243A (en) | 2023-11-24 |
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Denomination of invention: A flexible fiber optic ribbon cable and its manufacturing method Granted publication date: 20231222 Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGZHOU YUHONG TECHNOLOGY CO.,LTD. Registration number: Y2024980042636 |