CN101650459A - High-strength folding-resistant indoor wiring optical cable - Google Patents
High-strength folding-resistant indoor wiring optical cable Download PDFInfo
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- CN101650459A CN101650459A CN200910181826A CN200910181826A CN101650459A CN 101650459 A CN101650459 A CN 101650459A CN 200910181826 A CN200910181826 A CN 200910181826A CN 200910181826 A CN200910181826 A CN 200910181826A CN 101650459 A CN101650459 A CN 101650459A
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Abstract
The invention discloses a high-strength folding-resistant indoor wiring optical cable which comprises a sheath cable body, reinforcing pieces and optical fibers. The sheath cable body is made of an environment-friendly halogen free flame retardant polyolefin material with high elasticity, has the characteristics of non-toxicity, environmental protection and flame retardance and is suitable to be laid and arranged indoors. Each reinforcing piece is manufactured by a method as follows: aramid fibers are used as a matrix; after being soaked in a polyester compound solution, the matrix is put in adie opening to be extruded, stretched and dried into a rod-shaped matrix of 0.5mm, and the tensile force of the matrix reaches more than 1,800mPa; a layer of reinforcing core which has a thickness of0.2mm and is made of a high-hardness folding-resistant flame retardant PVC material with high elasticity is thermally plastic-covered on the rod-shaped matrix; and the reinforcing pieces are symmetrically integrated in the sheath cable body in parallel. One or more optical fibers can be used in the indoor wiring optical cable, and each optical fiber has a diameter of 250 micrometers and is made of an insensitive optical fiber material which is easy to bend. By combining the use of the technology, the indoor wiring optical cable with a specification of 2*3mm realizes the practical effects of high strength and folding resistance.
Description
Affiliated technical field
The present invention relates to the house wiring communications optical cable of a kind of apparent size 2 * 3MM, be applicable to the small size optical cable of the terminal wiring of FTTH.
Background technology
Develop rapidly along with society; people increase day by day to the dependence of communication network and information transmission; communication network develops to high capacity and high density direction; in case destroyed; can suffer serious economy loss immediately; make troubles for our life, thereby should take certain measure that optical cable is protected and strengthen improvement, guarantee the long-term unimpeded and reliability of communication network optical cable.
Optical cable product in the market generally includes sheath two parts of cable core and cable core periphery, and it in use usually can run into two kinds of problems, and the one, meeting meets with the biting destruction of animals such as mouse, termite and causes disconnected cable or look-at-me etc.; The 2nd, the tensile force of itself is low, the creasing resistance difference also can cause fibercuts in the cable body and the transmission of interrupting information.
Because the formation Main Ingredients and Appearance of cable core optical fiber is a high-purity quartz glass, the physical property of its stretch-proof, anti-complications is very fragile, thereby ordinary optical cable very easily causes the fibercuts in the sheath in using installation process, and this also is to influence the major obstacle of optical cable to the family popularization and application for many years.
Equally, indoor 2 * 3MM small size optical cable commonly used, the formation Main Ingredients and Appearance of its cable core optical fiber equally also is a high-purity quartz glass, diameter only has 0.25 millimeter, with the general thickness of human body hair, the physical property of its stretch-proof, anti-complications is also very fragile, thereby uses in the installation process and very easily cause fibercuts and damage.Industry is in order to overcome above-mentioned shortcoming; a lot of effort have been done; comprise and invented the optical cable that is added with the protection of aramid fiber strengthening core in the optical fiber both sides; this aramid fiber strengthening core mainly is the integrally stretching intensity for optical cable; guarantee that optical cable high-tension performance owing to the aramid fiber in the cable body in construction is used is difficult for being broken; thereby protected the optical fiber in the optical cable to be difficult for being broken; but the creasing resistance of this strengthening core is poor; when running into situations such as knotting, bending, extruding in construction, above-mentioned aramid fiber strengthening core still can not effectively be protected cable core optical fiber.Analyze its chief reason: optical fiber the bending fracture place the R angle less than 1 millimeter, two parallel strengthening cores in its sheath are also fracture simultaneously when the doubling of optical cable angle and curved, because the inside cable sectional dimension is little, cable body sheath elastic force deficiency, can't recover straightened condition rapidly, thereby cause fibercuts in the cable body, its major function of aramid fiber strengthening core in the now general employed house wiring optical fiber cable is for strengthening the tensile force of cable body, prevent that optical cable from pullling fracture, but its weakness is that (less than 30 millimeters) very easily rupture and lose again straight elasticity when bending radius is too small.Therefore, even the existing optical cable that aramid fiber strengthening core protection arranged still has the shortcoming of creasing resistance difference etc.
Summary of the invention
In order to solve the problem described in the background technology, a kind of high-strength anti-folding house wiring optical fiber cable of the present invention, comprise: sheath cable body, reinforcement and optical fiber, its described sheath cable body adopts environmental protection grade non-halogen flame-retardant high-tension polyolefine material, and its characteristic asepsis environment-protecting is fire-retardant to be applicable to that indoor laying installation uses; Described reinforcement is for being that to enter the oven dry of die hole extrusion stretching behind polyester complex liquid dipping be the shaft-like matrix of 0.5mm to matrix with the aramid fiber, its pulling force is reached more than the 1800mpa, and on shaft-like matrix the strengthening core of the flame-proof PVC highly elastic material of the anti-bending of high rigidity of the plastic one deck 0.2mm of heat, being integrated in the sheath cable body of its parallel symmetry; Its optical fiber can be one or for many, all adopting diameter is 250um, easily is bent insensitive fiber optic materials to make, and the use of comprehensive above technology, making this specification is the practical function that the house wiring optical fiber cable of 2 * 3mm has been realized high-strength fold resistance.
Advantage of the present invention has:
1. this high-strength anti-folding house wiring optical fiber cable, it is little to have bending radius, anti-folding.
And size little (2 * 3mm), weight is slim and graceful, and transport information capacity is big, speed is fast.
3. the installation laying is very convenient, long service life.
High-strength anti-folding house wiring optical fiber cable is by means of design special on special material, the structure and processing, thereby realizes the improvement of house wiring optical fiber cable on performance, reaches the practical function of high-strength fold resistance.It is little that its important feature is that the optical cable of the type has bending radius, anti-folding, and size is little, and (2 * 3mm), weight is slim and graceful, and transport information capacity is big, speed is fast, and installation is laid very convenient, the characteristic of long service life.
The high-strength anti-folding house wiring optical fiber cable of this project development is gone up from constituting, and is made up of following three parts.
1. sheath cable body 2. reinforcements 3. optical fiber
In this project, sheath cable body adopts environmental protection grade non-halogen flame-retardant high-tension polyolefine material, and its characteristic is that asepsis environment-protecting is fire-retardant, is highly suitable for indoor laying installation and uses; Reinforcement is matrix with the aramid fiber, behind polyester complex liquid dipping, enter the die hole extrusion stretching, oven dry is the shaft-like matrix of 0.5mm, its pulling force is reached more than the 1800mpa, and on shaft-like matrix the strengthening core of the flame-proof PVC highly elastic material of the anti-bending of high rigidity of the plastic one deck 0.2mm of heat, being integrated in the sheath cable body of its parallel symmetry; In addition, on optical fiber designs, can be one or for many, all adopting diameter is 250um, easily is bent insensitive fiber optic materials to make, making this specification is the practical function that the house wiring optical fiber cable of 2 * 3mm has been realized high-strength fold resistance.
1. sheath cable body
Described sheath cable body 3 is selected the environmental protection flame retardant polyolefin rat-proof material that big white mouse is had significant mouse bite preventing effect through " Inst of Infection Disease Prevention and Control, Chinese Diseases Prevention an " mouse bite preventing effect measuring for use, its characteristic asepsis environment-protecting is fire-retardant to be applicable to that indoor laying installation uses, and its resiliency characteristics helps optical cable of the present invention to restore straightened condition rapidly running into the bending back; And this sheath cable body 3 roughly becomes rectangular structure, the both sides up and down at its middle part respectively are provided with the opening (as Fig. 2) of one or nine ten degree, this opening 5 extends to form groove along the middle part of sheath cable body 3, this groove is divided into impartial two parts (as Fig. 1) with sheath cable body, scribble luminous colour band in the described groove, be convenient to identification or night time operation, certainly described luminous colour band also can be applied to other and its not afoul place of purposes of sheath cable body 3.
2. reinforcement
Described reinforcement 1 is for being integrated in two strengthening cores 201 in the sheath cable body 3, and these strengthening core 201 employing elasticity height, the polyester aramid fiber wire material that the coefficient of tension is big are made.To be matrix enter the die hole extrusion stretching of shaping mould behind polyester complex liquid dipping and be the shaft-like matrix of 0.5mm through the equipment oven dry with the aramid fiber tow, it is the compound heat curing layer of aramid fiber tow outsourcing polyester, the shaft-like matrix of described 0.5mm enters the equipment of moulding through after the cooling of cooling device, gone up therein the plastic again flame-proof PVC highly elastic material of the anti-bending of one deck 0.2mm high rigidity of heat, be the high resiliency flame-proof PVC layer of the anti-bending of aramid fiber tow outsourcing polyester compound heat curing layer outsourcing high rigidity again, so material composition structure makes strengthening core.
3. optical fiber
R angle when doubling is crooked is greater than 1 millimeter and do not rupture, recovery of elasticity is straight rapidly, make this invention 2 * 3mm high-strength anti-folding house wiring optical fiber cable have less bending radius (or even 8 fonts or knotting), the performance of itself is increased, anti-folding, easy fracture not, effectively increased the serviceable life of high-strength anti-folding house wiring optical fiber cable of the present invention, this strengthening core is respectively in two parts that are integrated in the equalization that groove is divided into sheath cable body of symmetry, promptly be positioned at the two ends of groove 4, and two strengthening core is on same horizontal line, and between leave the space, described optical fiber 2 just is integrated in the above-mentioned space, optical fiber 2 is two among the figure two, be diameter be 250um easily be bent insensitive optical fiber, its characteristic has reduced the photoconduction performance loss of optical cable of the present invention when bending, its two ends that are integrated in above-mentioned space respectively are near the part of strengthening core and also be positioned at the two ends of groove, so structure makes this high-strength anti-folding house wiring optical fiber cable be easy to tear to be convenient to get fibre, make install when laying more convenient to operate.
Description of drawings
Fig. 1 is a three-dimensional side view of the present invention;
Fig. 2 is a sectional view of the present invention;
Fig. 3 is the sectional view of further embodiment of this invention;
Fig. 4 is a strengthening core technological process of production synoptic diagram of the present invention;
Fig. 5 is the structural representation of strengthening core of the present invention.
1. sheath cable bodies among the figure, 2. reinforcement, 201. strengthening cores, 3. optical fiber, 4. groove, 5. opening.
Embodiment
High-strength anti-folding house wiring optical fiber cable of the present invention is that (size 2 * 3MM) communications optical cables, it is particularly useful for house wirings such as building, hotel, office to the terminal small size that connects up of a kind of FTTH of being suitable for.As shown in the figure, it comprises; 1, sheath cable body, 2, reinforcement, 201, strengthening core, 3, optical fiber, 4, groove, 5, opening.
Described sheath cable body 1 is selected the environmental protection flame retardant polyolefin rat-proof material that big white mouse is had significant mouse bite preventing effect through " Inst of Infection Disease Prevention and Control, Chinese Diseases Prevention an " mouse bite preventing effect measuring for use, its characteristic asepsis environment-protecting is fire-retardant to be applicable to that indoor laying installation uses, and its resiliency characteristics helps optical cable of the present invention to restore straightened condition rapidly running into the bending back; And this sheath cable body 1 roughly becomes rectangular structure, the both sides up and down at its middle part respectively are provided with the opening 5 of one or nine ten degree, this opening 5 extends to form groove 4 along the middle part of sheath cable body 1, this groove 4 is divided into impartial two parts with sheath cable body 1, scribble luminous colour band (not indicating among the figure) in the described groove 4, be convenient to identification or night time operation, certainly described luminous colour band also can be applied to other and its not afoul place of purposes of sheath cable body 1.
Described reinforcement 2 is for being integrated in two strengthening cores 201 in the sheath cable body 1, this strengthening core 201 adopts the elasticity height, the polyester aramid fiber wire material that the coefficient of tension is big is made, its concrete technology flow process is (as shown in Figure 4): to be matrix enter the die hole extrusion stretching of shaping mould 903 behind polyester complex liquid 902 dippings and be the shaft-like matrix of 0.5mm through equipment 904 oven dry with aramid fiber tow 901, it is the compound heat curing layer of aramid fiber tow outsourcing polyester, the shaft-like matrix of described 0.5mm enters the equipment of moulding 906 through after the cooling of cooling device 905, gone up therein the plastic again flame-proof PVC highly elastic material of the anti-bending of one deck 0.2mm high rigidity of heat, be the high resiliency flame-proof PVC layer of the anti-bending of aramid fiber tow outsourcing polyester compound heat curing layer outsourcing high rigidity again, so material composition structure makes strengthening core 201
R angle when doubling is crooked is greater than 1 millimeter and do not rupture, recovery of elasticity is straight rapidly, make this invention 2 * 3mm high-strength anti-folding house wiring optical fiber cable have less bending radius (or even 8 fonts or knotting), the performance of itself is increased, anti-folding, easy fracture not, effectively increased the serviceable life of high-strength anti-folding house wiring optical fiber cable of the present invention, this strengthening core 201 is respectively in two parts that are integrated in the equalization that groove 4 is divided into sheath cable body 1 of symmetry, promptly be positioned at the two ends of groove 4, and two strengthening core 201 is on same horizontal line, and between leave the space, described optical fiber 3 just is integrated in the above-mentioned space, optical fiber 3 is two in the present embodiment, be diameter be 250um easily be bent insensitive optical fiber, its characteristic has reduced the photoconduction performance loss of optical cable of the present invention when bending, its two ends that are integrated in above-mentioned space respectively are near the part of strengthening core 201 and also be positioned at the two ends of groove 4, so structure makes this high-strength anti-folding house wiring optical fiber cable be easy to tear to be convenient to get fibre, make install when laying more convenient to operate.
Another embodiment as shown in Figure 3, it is compared to the foregoing description is that the quantity of optical fiber 3 changes to some extent, the quantity of optical fiber 3 is one in the present embodiment, and is positioned at the middle part of two strengthening cores 201, the middle part of groove 4, is convenient to directly get fine fitting operation when so tearing.Aspect such as material, 26S Proteasome Structure and Function as for other is same as the previously described embodiments, is not giving unnecessary details at this.
Claims (7)
1. high-strength anti-folding house wiring optical fiber cable, comprise: sheath cable body, reinforcement and optical fiber, it is characterized in that: described sheath cable body adopts environmental protection grade non-halogen flame-retardant high-tension polyolefine material, described reinforcement for the aramid fiber be matrix behind polyester complex liquid dipping, enter the oven dry of die hole extrusion stretching for shaft-like matrix and on shaft-like matrix heat plastic the strengthening core of flame-proof PVC highly elastic material of the anti-bending of one deck high rigidity.
2. high-strength anti-folding house wiring optical fiber cable according to claim 1 is characterized in that: described shaft-like matrix diameter is 0.5mm.
3. high-strength anti-folding house wiring optical fiber cable according to claim 1 is characterized in that: the thickness of the flame-proof PVC highly elastic material of the anti-bending of one deck high rigidity that described heat is plastic is 0.2mm.
4. high-strength anti-folding house wiring optical fiber cable according to claim 1 is characterized in that: described strengthening core is the fiber optic protection strengthening core in the sheath cable body of being integrated in of two symmetries that leave the integrated space of optical fiber each other.
5. high-strength anti-folding house wiring optical fiber cable according to claim 1 is characterized in that: described optical fiber be diameter be 250um easily be bent insensitive optical fiber.
6. high-strength anti-folding house wiring optical fiber cable according to claim 1 is characterized in that: described reinforcement is two strengthening cores that are integrated in the sheath cable body, and described optical fiber is integrated between two interior strengthening cores of sheath cable body.
7. high-strength anti-folding house wiring optical fiber cable according to claim 1 is characterized in that: the specification of described high-strength anti-folding house wiring optical fiber cable is 2 * 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910181826A CN101650459A (en) | 2009-07-30 | 2009-07-30 | High-strength folding-resistant indoor wiring optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910181826A CN101650459A (en) | 2009-07-30 | 2009-07-30 | High-strength folding-resistant indoor wiring optical cable |
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| Publication Number | Publication Date |
|---|---|
| CN101650459A true CN101650459A (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910181826A Pending CN101650459A (en) | 2009-07-30 | 2009-07-30 | High-strength folding-resistant indoor wiring optical cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023354A (en) * | 2010-12-14 | 2011-04-20 | 金华中科通信技术有限公司 | Communication optical fiber cable |
| CN111487734A (en) * | 2020-04-27 | 2020-08-04 | 江苏亨通线缆科技有限公司 | Optical cable |
-
2009
- 2009-07-30 CN CN200910181826A patent/CN101650459A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023354A (en) * | 2010-12-14 | 2011-04-20 | 金华中科通信技术有限公司 | Communication optical fiber cable |
| CN111487734A (en) * | 2020-04-27 | 2020-08-04 | 江苏亨通线缆科技有限公司 | Optical cable |
| CN111487734B (en) * | 2020-04-27 | 2022-04-29 | 江苏亨通线缆科技有限公司 | Optical cable |
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Application publication date: 20100217 |