CN210666132U - High-temperature-resistant optical cable - Google Patents
High-temperature-resistant optical cable Download PDFInfo
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- CN210666132U CN210666132U CN201922022118.5U CN201922022118U CN210666132U CN 210666132 U CN210666132 U CN 210666132U CN 201922022118 U CN201922022118 U CN 201922022118U CN 210666132 U CN210666132 U CN 210666132U
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- high temperature
- temperature resistant
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Abstract
The utility model provides a high temperature resistant optical cable, including a plurality of tight cover optic fibre, wrap up a plurality of tight cover optic fibre in the yarn that blocks water of inside, indulge the package in the thermal-insulated band that blocks water the yarn surface, the oversheath of cladding in thermal-insulated band surface, each tight cover optic fibre is including the high temperature resistant optic fibre that is located the center, locate the aramid fiber of high temperature resistant optic fibre surface and locate the tight jacket layer of aramid fiber surface, high temperature resistant optic fibre includes optic fibre and covers in the outer high temperature resistant coating of optic fibre. Therefore, when a fire disaster occurs, the high-temperature-resistant optical fiber can normally operate at high temperature for a long time, and emergency data storage is facilitated. And aramid fiber is used as a tight-sleeved fiber tensile element, so that the tensile property of a single tight-sleeved optical fiber can be greatly improved, and the internal high-temperature-resistant optical fiber is effectively protected.
Description
Technical Field
The utility model relates to a technical field of optical cable especially relates to a high temperature resistant optical cable.
Background
As is well known, with the development of the communication industry, the emergence of 5G creates favorable conditions for new applications of large data traffic such as intelligent networks, internet of things, cloud computing, big data, telemedicine and the like, and the method has the characteristics of high speed, high reliability, low time delay, low power consumption, ultra-large bandwidth and the like. However, at present, a single tight-buffered optical fiber with an internal outer diameter of 0.9mm can only bear 3-5 newtons of pulling force at most in the existing bundled optical cable for communication, and has poor tensile capability and is easy to damage when being used by people. In addition, the outer sheath of the existing bundle-shaped optical cable for communication is generally made of polyvinyl chloride (PVC), low-smoke halogen-free (LSZH) or thermoplastic polyurethane elastomer rubber (TPU), the outer sheath is easy to burn out when a fire accident happens, the internal structure is exposed, and at present, the existing optical fiber for communication has poor heat resistance and can resist 85 C to the maximum extent, so that the internal optical fiber is easy to lack the protection of the outer sheath and is subjected to line interruption when the fire accident happens, network paralysis is caused, and the emergency data storage of people in the fire accident is not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects and the deficiencies of the prior art, the utility model provides a high temperature resistant optical cable with high tensile and fire-retardant fire prevention function of time delay.
The utility model adopts the technical proposal that: a high temperature resistant optical cable, characterized in that: including a plurality of tight-buffered optical fibers, wrap up a plurality of tight-buffered optical fibers in the yarn that blocks water of inside, indulge the package in the thermal-insulated band that blocks water the yarn surface, the oversheath of cladding in thermal-insulated band surface, each tight-buffered optical fiber is including the high temperature resistant optical fiber that is located the center, locate the aramid fiber of high temperature resistant optical fiber surface and locate the tight jacket layer of aramid fiber surface, high temperature resistant optical fiber includes optic fibre and covers in the outer high temperature resistant coating of optic fibre.
Preferably, the outer sheath is made of a ceramic polyolefin material.
Preferably, the high-temperature resistant coating is made of a polyimide material.
Preferably, the aramid fiber is in a model number of 200D-440D.
Preferably, the number of the aramid fibers is 2-4.
Preferably, the tight sleeve layer is made of low-smoke halogen-free flame-retardant polyolefin material.
Preferably, the number of tight buffered optical fibers is 1-12.
Preferably, the heat insulation wrapping tape is made of a polyimide tape material.
Preferably, the tight buffered optical fiber has an outer diameter of 0.85 to 1.0 mm.
The utility model has the advantages that: compared with the prior art, the utility model discloses tight set optic fibre of optical cable comprises high temperature resistant optic fibre, aramid fiber and tight jacket layer, and high temperature resistant optic fibre can be long-time at 300 ℃ high temperature normal operating, can prolong the save data time when the conflagration takes place. And the aramid fiber is arranged inside the tight-buffered layer, so that the tensile property of a single tight-buffered optical fiber can be greatly improved, and the internal high-temperature-resistant optical fiber can be effectively protected.
Drawings
Fig. 1 is a schematic cross-sectional view of the optical cable of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some sub-embodiments of the present invention. Based on the embodiments in the present invention, other embodiments obtained by the skilled in the art without creative work all belong to the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a high temperature resistant optical cable includes a plurality of tight buffered optical fibers 1, a water blocking yarn 2 wrapping the plurality of tight buffered optical fibers 1 inside, a heat insulation covering belt 3 longitudinally wrapping the surface of the water blocking yarn 2, and an outer sheath 4 wrapping the surface of the heat insulation covering belt 3, each of the tight buffered optical fibers 1 includes a high temperature resistant optical fiber 11 located at the center, a plurality of aramid fibers 12 located on the surface of the high temperature resistant optical fiber 11, and a tight buffered layer 13 extruded on the surface of the aramid fibers 12, and the high temperature resistant optical fiber 11 includes an optical fiber (not shown in the figure) and a high temperature resistant coating (not shown in the figure) covering the optical fiber.
The utility model discloses tight set optic fibre 1 of optical cable comprises high temperature resistant optic fibre 11, aramid fiber 12 and tight jacket layer 13, and high temperature resistant optic fibre 11 can be long-time at 300 ℃ high temperature normal operating, can prolong the save data time when the conflagration takes place. And, place aramid fiber 12 in tight-buffered layer 13 inside, and aramid fiber 12 has fine properties such as superhigh strength, high modulus and high temperature resistance, and its intensity is 5-6 times of steel wire, and toughness is 2 times of steel wire, and under the temperature of 560 degrees, does not decompose, does not melt, like this, and can greatly improve single tight-buffered optical fiber 1's tensile strength, can effectively protect inside high temperature resistant optic fibre 11.
In some embodiments of the present invention, the outer sheath 4 is made of a ceramic polyolefin material. Wherein, pottery polyolefin material, under the temperature or the flame condition more than 650 ℃, can generate complete ceramic form casing rapidly, and the ceramic form casing that generates does not ftracture, does not drip, and pottery polyolefin material has excellent electrical isolation and fabulous thermal-insulated effect of separating oxygen, can effectively keep apart high temperature flame to the infringement of inside material, delays the thermolysis of inside material, and then can effectual assurance the utility model discloses oversheath 4 of bunched optical cable is not burnt out and can effectively reduce the temperature that reachs inner structure, and the extension inner structure that from this can be further is impaired for a long time.
The utility model discloses an in some embodiments, in order to make high temperature resistant optic fibre 11 can satisfy 5G communication transmission's demand, ten thousand million multimode optical fibre are preferentially selected for use to high temperature resistant optic fibre 11 to, can bear 300 ℃ high temperature for a long time in order to make high temperature resistant optic fibre 11, and can effectively prolong when high temperature resistant optic fibre 11 is damaged by the fire temperature under the conflagration condition, the high temperature resistant coating is preferentially selected for use the polyimide material to make, and wherein, this material has high modulus, high tensile strength, flame resistance, good chemical stability and can bear 300 ℃ high temperature for a long time.
In some embodiments of the present invention, in order to optimize the tensile strength of the tight-buffered optical fiber 1 and the overall structure of the tight-buffered optical fiber 1, the aramid fiber 12 is preferably 200D-440D, and the number of the aramid fibers is limited to 2-4, but 3 aramid fibers 12 are preferably coated on the outer surface of the high temperature resistant optical fiber 11, so that the aramid fiber 12 with high strength can play the roles of tensile strength and buffering, and the internal high temperature resistant optical fiber 11 is effectively protected.
In some embodiments of the present invention, in order to satisfy people's needs, the number of the tight buffered optical fibers 1 may be 1-12.
The utility model discloses an in some embodiments, tight jacket layer 13 adopts low smoke and zero halogen flame retardant polyolefin material to make, and this material environmental protection, and have the cushioning effect, can make the better protection inner structure of tight jacket layer 13, and the tight jacket layer 13 of making through the low smoke and zero halogen flame retardant polyolefin material of different colours has different colours, like blue, orange, green, brown, grey, white, red, black, yellow, purple, pink, dark green etc. can be convenient for people to distinguish the effect of each tight jacket optic fibre 1, be convenient for people to use.
The utility model discloses an in some embodiments, for more effective separation heat to inside diffusion, delay the pyrolysis of inside material, thermal-insulated band 3 adopts polyimide to take the material to make, and this polyimide takes the material can be able to bear or endure 400 ℃ high temperature, and the heat-proof quality is good, and itself has from putting out the nature, so do not have combustion-supporting effect, like this, can further when effectual extension high temperature resistant optic fibre 11 is damaged by fire temperature.
In the embodiment of the present invention, in order to ensure the flexibility of the present invention, the outer diameter of the tight buffered optical fiber 1 is preferably 0.85-1.0 mm, wherein the optimal outer diameter of the tight buffered optical fiber 1 is 0.9 mm. Moreover, when the optimal outer diameter of the tight-buffered optical fiber 1 is 0.9mm, each tight-buffered optical fiber 1 can meet the tensile resistance of 45 newtons by using the aramid fiber 12, and compared with the common tight-buffered optical fiber with the diameter of 0.9mm, the tensile resistance is at least improved by 40 newtons, so that the connection quality and the service life of the tight-buffered optical fiber 1 can be greatly improved.
The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. But rather, obvious variations and modifications may be made without departing from the spirit of the invention.
Claims (9)
1. A high temperature resistant optical cable, characterized in that: including a plurality of tight-buffered optical fibers, wrap up a plurality of tight-buffered optical fibers in the yarn that blocks water of inside, indulge the package in the thermal-insulated band that blocks water the yarn surface, the oversheath of cladding in thermal-insulated band surface, each tight-buffered optical fiber is including the high temperature resistant optical fiber that is located the center, locate the aramid fiber of high temperature resistant optical fiber surface and locate the tight jacket layer of aramid fiber surface, high temperature resistant optical fiber includes optic fibre and covers in the outer high temperature resistant coating of optic fibre.
2. A high temperature resistant optical cable according to claim 1, wherein: the outer sheath is made of ceramic polyolefin material.
3. A high temperature resistant optical cable according to claim 1, wherein: the high-temperature resistant coating is made of polyimide materials.
4. A high temperature resistant optical cable according to claim 1, wherein: the aramid fiber is in a model of 200D-440D.
5. A high-temperature-resistant optical cable according to claim 1 or 4, wherein: the number of the aramid fibers is 2-4.
6. A high temperature resistant optical cable according to claim 1, wherein: the tight sleeve layer is made of low-smoke halogen-free flame-retardant polyolefin material.
7. A high temperature resistant optical cable according to claim 1, wherein: the number of the tight-buffered optical fibers is 1-12.
8. A high temperature resistant optical cable according to claim 1, wherein: the heat insulation wrapping tape is made of polyimide tape materials.
9. A high temperature resistant optical cable according to claim 1, wherein: the outer diameter of the tight-buffered optical fiber is 0.85-1.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022118.5U CN210666132U (en) | 2019-11-20 | 2019-11-20 | High-temperature-resistant optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022118.5U CN210666132U (en) | 2019-11-20 | 2019-11-20 | High-temperature-resistant optical cable |
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| Publication Number | Publication Date |
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| CN210666132U true CN210666132U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922022118.5U Active CN210666132U (en) | 2019-11-20 | 2019-11-20 | High-temperature-resistant optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113900200A (en) * | 2021-09-28 | 2022-01-07 | 国网北京市电力公司 | Optical cable |
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2019
- 2019-11-20 CN CN201922022118.5U patent/CN210666132U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113900200A (en) * | 2021-09-28 | 2022-01-07 | 国网北京市电力公司 | Optical cable |
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