CN201392419Y - Indoor optical fiber ribbon cable - Google Patents
Indoor optical fiber ribbon cable Download PDFInfo
- Publication number
- CN201392419Y CN201392419Y CN200920142112U CN200920142112U CN201392419Y CN 201392419 Y CN201392419 Y CN 201392419Y CN 200920142112 U CN200920142112 U CN 200920142112U CN 200920142112 U CN200920142112 U CN 200920142112U CN 201392419 Y CN201392419 Y CN 201392419Y
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- sheath
- ribbon cable
- indoor
- cushion
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 40
- 239000000835 fiber Substances 0.000 claims abstract description 26
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 8
- -1 acryl Chemical group 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 238000005253 cladding Methods 0.000 abstract 1
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
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- Light Guides In General And Applications Therefor (AREA)
Abstract
The utility model relates to a be used for indoor ribbon cable, it includes the sheath, along the sheath vertical parallel and interval embedding in a plurality of tight package optical fiber unit in the sheath, every tight package optical fiber unit constitute at the buffer layer of optic fibre periphery by optic fibre, cladding, the utility model discloses ribbon cable has a plurality of tight package optical fiber unit parallel embeddings in outer sheath, consequently, whole optical cable can evenly bear the pulling force, and has certain tensile ability, combines them into a whole with the sheath in addition, therefore can be fit for laying of indoor environment and the requirement of using completely. Has the advantages of simple structure, good bending property, strong pressure resistance and flexible and simple laying.
Description
Technical field
The utility model relates to a kind of communications optical cable, relates in particular to a kind of indoor optical fiber ribbon cable that is used for.
Background technology
In recent years, the FTTH technology has obtained developing rapidly, and the version that is used for the indoor optical cable that lays use is also more and more many, as adopting traditional outdoor optical fiber ribbon cable, this kind optical cable is superimposed as band shape by some optical fiber and is arranged in the loose sleeve pipe, the pine jacket exterior also coats fire-retardant sheath usually, also is filled with ointment between ribbon fiber and loose sleeve pipe usually, but owing to the ointment that has of filling in the loose sleeve pipe, it is cumbersome to construct, and be not easy to cleaning, external diameter is also bigger than normal, and it is indoor therefore to be unfavorable for that cloth is placed on; And traditional indoor ribbon optical cable, its fibre ribbon normally coats with aramid yarn, and whole optical cable is soft, is having under the external force effect, and though there is aramid yarn to have buffering, it is very little to bear pressure, is unfavorable for fiber optic protection, and compressive property is poor.
Though the requirement of the anti-environmental performance of inside cable (mechanical stress and chemical erosion) is less than the outdoor optical cable height, but characteristics such as it must have, and light in structure is little, good bandability, compressive resistance strong, lay flexibly, and expect to be pressed under the carpet in shape to lay, therefore, above-mentioned traditional optical fiber ribbon cable all can not satisfy above-mentioned requirements.
The utility model content
The utility model purpose be exactly provide in order to overcome the deficiencies in the prior art a kind of simple in structure, good bandability, compressive resistance strong, lay and be used for indoor optical fiber ribbon cable flexibly.
In order to reach the foregoing invention purpose, the technical solution of the utility model is: a kind ofly be used for indoor optical fiber ribbon cable, it comprises sheath, along described sheath parallel longitudinal and be embedded at interval a plurality of tightly packaged fiber units in the described sheath, each described tightly packaged fiber unit is made up of optical fiber, the cushion that is coated on the optical fiber periphery.
Further, described sheath main body is flat, because therefore the optical cable flat is suitable for being pressed in the carpet downward cabling in indoor laying.
The cushion of described each tightly packaged fiber unit fits tightly mutually with sheath, thereby makes that the structure of optical cable is compact more.
Optical fiber in the described tightly packaged fiber unit is single-mode fiber or multimode optical fiber.
Described cushion comprises cushion in the acryl resin that is coated on the optical fiber periphery, is coated in the outer cushion of vibrin of described interior cushion periphery.
Described sheath is made by polybutylene terephthalate.
Described tightly packaged fiber unit number is 2～12.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage: a plurality of tightly packaged fiber units of the utility model optical fiber ribbon cable are parallel to be embedded in the outer jacket, therefore, whole optical cable can evenly bear pulling force, and has certain resistance to tension, add that sheath is combined into an integral body with them, thereby can be fit to the requirement of laying and using of indoor environment fully.Has the advantage that simple in structure, good bandability, compressive resistance are strong, lay flexible and convenient.
Description of drawings
Accompanying drawing 1 is the utility model optical fiber ribbon cable viewgraph of cross-section;
Wherein: 1, sheath; 2, tightly packaged fiber unit; 21, optical fiber; 22, cushion; 221, interior cushion; 222, outer cushion;
Embodiment
Below in conjunction with accompanying drawing the utility model preferred embodiment is elaborated:
Optical fiber ribbon cable as shown in Figure 1, it mainly is made up of a plurality of tightly packaged fiber units 2 and PBT sheath 1.1 one-tenth flat of sheath, the length of xsect can change in 6～12mm scope, width changes in 2～5mm scope, sheath 1 is made by polybutylene terephthalate PBT material, PBT is a kind of engineering plastics of function admirable, good physical mechanical characteristic is arranged in wider temperature range, organic solvent and oils are had good chemical stability.A plurality of tightly packaged fiber unit 2 is parallel and be spaced apart and arranged in the sheath 1, the quantity of tightly packaged fiber unit 2 is in 2～12 scopes, each tightly packaged fiber unit 2 comprises optical fiber 21, is coated on the cushion 22 of optical fiber 21 outsides, wherein, optical fiber 21 can adopt single-mode fiber or multimode optical fiber, external diameter is 0.24mm, cushion 221 and outer cushion 222 in cushion 22 comprises, it is made by unlike material, interior cushion 221 adopts acryl resin, because of it has lower elastic modulus, so make optical fiber to external force tangible buffer action be arranged, its external diameter is 0.5mm; Outer cushion 222 is a vibrin, and it has higher modulus of elasticity, can provide the favorable mechanical protection to optical fiber.Therefore, by the double shielding of inside and outside cushion, little bending strain that optical fiber 1 is subjected in cable configuration is very little, can not produce excessive stranding added losses.And because PBT sheath and external coating are vibrin, melt temperature is close, and compatibility is fabulous, and both are easy to be pressed into an integral body when making, thereby makes tightly packaged fiber unit 2 compact more with combining of sheath 1.
The utility model optical fiber ribbon cable manufacture method is also comparatively simple, can adopt extrusion molding commonly used, at first core rod that manufactured size is suitable and die sleeve, and core rod and die sleeve are arranged on the extruding machine, extrude the PBT sheath on the tightly packaged fiber of some parallel placements.
The utility model optical fiber ribbon cable is simple in structure, good bandability, compressive resistance strong, lay flexible and convenient, can be particularly useful for the carpet downward cabling at indoor any cabling, has bigger application value.
Claims (7)
1, a kind ofly is used for indoor optical fiber ribbon cable, it is characterized in that: it comprises sheath (1), along described sheath (1) parallel longitudinal and be embedded at interval a plurality of tightly packaged fiber units (2) in the described sheath (1), and each described tightly packaged fiber unit (2) is made up of optical fiber (21), the cushion (22) that is coated on optical fiber (21) periphery.
2, according to claim 1ly be used for indoor optical fiber ribbon cable, it is characterized in that: described sheath (1) main body is flat.
3, the indoor ribbon optical cable that is used for according to claim 1 and 2 is characterized in that: the cushion (22) of described each tightly packaged fiber unit (2) fits tightly mutually with sheath (1).
4, according to claim 1 and 2ly be used for indoor optical fiber ribbon cable, it is characterized in that: the optical fiber (21) in the described tightly packaged fiber unit (2) is single-mode fiber or multimode optical fiber.
5, according to claim 1ly be used for indoor optical fiber ribbon cable, it is characterized in that: described cushion (22) comprises cushion (221) in the acryl resin that is coated on optical fiber (21) periphery, be coated in described in the outer cushion (222) of vibrin of cushion (221) periphery.
6, according to claim 1ly be used for indoor optical fiber ribbon cable, it is characterized in that: described sheath (1) is made by polybutylene terephthalate.
7, according to claim 1ly be used for indoor optical fiber ribbon cable, it is characterized in that: described tightly packaged fiber unit (2) number is 2～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920142112U CN201392419Y (en) | 2009-03-19 | 2009-03-19 | Indoor optical fiber ribbon cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920142112U CN201392419Y (en) | 2009-03-19 | 2009-03-19 | Indoor optical fiber ribbon cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392419Y true CN201392419Y (en) | 2010-01-27 |
Family
ID=41599240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920142112U Expired - Lifetime CN201392419Y (en) | 2009-03-19 | 2009-03-19 | Indoor optical fiber ribbon cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392419Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950661A (en) * | 2017-03-07 | 2017-07-14 | 深圳市特发信息股份有限公司 | It is a kind of easily to attach optical cable |
-
2009
- 2009-03-19 CN CN200920142112U patent/CN201392419Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950661A (en) * | 2017-03-07 | 2017-07-14 | 深圳市特发信息股份有限公司 | It is a kind of easily to attach optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TONGDING INTERCONNECTION INFORMATION CO., LTD. Free format text: FORMER NAME: JIANGSU TONGDING OPTICAL + ELECTRIC TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Wujiang Zhenze Town District of Suzhou City, Jiangsu province 215233 eight Xiaoping Avenue No. 8 Patentee after: The logical interconnected information limited company of ancient cooking vessel Address before: 215233 Wujiang City, Jiangsu Province eight Zhenze Town Development Zone Xiaoping Road No. 18 Patentee before: Jiangsu Tongding Optical & Electric Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |
|
| CX01 | Expiry of patent term |