CN211603641U - Enhanced high-temperature-resistant special loose-tube optical cable - Google Patents
Enhanced high-temperature-resistant special loose-tube optical cable Download PDFInfo
- Publication number
- CN211603641U CN211603641U CN202020339477.3U CN202020339477U CN211603641U CN 211603641 U CN211603641 U CN 211603641U CN 202020339477 U CN202020339477 U CN 202020339477U CN 211603641 U CN211603641 U CN 211603641U
- Authority
- CN
- China
- Prior art keywords
- layer
- optical cable
- tetrafluoroethylene copolymer
- ethylene tetrafluoroethylene
- aromatic polyamide
- 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.)
- Active
Links
Images
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The utility model relates to the technical field of special optical cables, in particular to an enhanced high-temperature resistant special loose tube optical cable, which comprises optical fibers and an inner reinforced isolation layer, wherein the inner reinforced isolation layer is made of liquid crystal polyester material or aromatic polyamide fiber; the buffer layer is made of ethylene tetrafluoroethylene copolymer or polyether-ether-ketone material and is of a loose sleeve structure; an external reinforcing layer made of aromatic polyamide fiber material; the sheath layer is made of ethylene tetrafluoroethylene copolymer. Adopt the utility model discloses a structure, thoroughly avoided the phenomenon of fusing as an organic whole in high temperature production process optical fiber coating and buffer layer, improved optical cable mechanical properties, anti side pressure and high and low temperature resistance performance simultaneously, improve radial protective capacities of optic fibre and optical cable axial tensile strength.
Description
Technical Field
The utility model relates to a special type optical cable technical field, in particular to high temperature resistant special loose tube optical cable of enhancement mode.
Background
The optical cable communication has the characteristics of light weight, large communication capacity, long transmission distance, electromagnetic interference resistance, good transmission quality, difficulty in eavesdropping and the like. Normal temperature optical cables (civil optical cables) are widely applied to daily communication networks, but signal transmission of an aerospace vehicle is mainly completed by communication cables, and the aerospace vehicle is not only limited by transmission capacity and quality, but also has high requirement on weight. The communication optical cable used in aerospace often contains metal materials, has heavy weight, low environmental adaptability and high cost, and can not simultaneously achieve better conditions of weight, tensile property, high and low temperature resistance, flame retardance and the like.
Disclosure of Invention
In order to solve the problem, the utility model develops an enhancement mode high temperature resistant special loose tube optical cable. The optical cable has the characteristics of all media, light weight, high communication quality, large capacity, electromagnetic interference resistance, low cost and the like. And greatly saves the launching and running cost of the spacecraft.
The utility model provides a high temperature resistant special type loose tube optical cable of enhancement mode, includes optic fibre, still includes the following layer of arranging in proper order:
the inner reinforcing isolation layer is made of liquid crystal polyester material or aromatic polyamide fiber;
the buffer layer is made of ethylene tetrafluoroethylene copolymer or polyether ether ketone material, and the stripping force of the buffer layer and the inner reinforcing isolation layer (2) is not more than 6N/m;
an external reinforcing layer made of aromatic polyamide fiber material;
the sheath layer is made of ethylene tetrafluoroethylene copolymer.
Preferably, the temperature resistance range of the optical fiber is-65 ℃ to +200 ℃, and the diameter of the optical fiber is selected from 0.18mm to 0.25 mm.
Preferably, the outer diameter of the inner reinforcing isolation layer is not more than 0.5 mm.
Preferably, the temperature resistance range of the ethylene tetrafluoroethylene copolymer used by the buffer layer is-65 ℃ to +150 ℃, and the temperature resistance range of the polyether-ether-ketone is-65 ℃ to +200 ℃; the temperature resistance range of the ethylene tetrafluoroethylene copolymer used in the sheath layer is-65 ℃ to +150 ℃.
Preferably, the temperature resistant range of the aromatic polyamide fiber used by the inner strengthening isolation layer and the outer strengthening layer is-196 ℃ to +204 ℃.
Preferably, the outer diameter of the sheath layer is not more than 3.0 mm.
Advantageous effects
(1) Unique reinforcing barrier layer: the optical fiber coating and the buffer layer in the existing optical cable are easy to be integrated, so that the buffer layer is difficult to separate from the optical fiber; even if the buffer layer is separated, the coating of the optical fiber is easy to damage, the processing difficulty of the subsequent terminal procedure is greatly increased, and the production efficiency is reduced. The optical cable adopts a novel optical cable process, and the liquid crystal polyester or aromatic polyamide fiber is adopted as a reinforcing isolation layer outside the optical fiber, so that the phenomenon that an optical fiber coating and a buffer layer are integrated in a high-temperature production process is thoroughly avoided, and the mechanical performance, the lateral pressure resistance and the high and low temperature resistance of the optical cable are improved.
(2) The utility model discloses still set the buffer layer of this high temperature optical cable to the pine cover structure, further prevent that the discontinuity adhesion of optic fibre coating and buffer layer from leading to transmission performance bad.
(3) All-medium: the optical cable does not contain any metal material, has light weight, large communication capacity, electromagnetic interference resistance and strong environmental adaptability, and greatly reduces the launching cost of the spacecraft.
(4) The outer reinforcing layer adopts aromatic polyamide fiber, so that the radial protection capability of the optical fiber and the axial tensile strength of the optical cable are improved, and the damage of an optical fiber coating when the buffer layer is stripped is avoided.
(5) High and low temperature resistance: the raw material design of the optical cable can meet the characteristics of high temperature and low temperature, and comprises an optical fiber with a special ultraviolet curing acrylate coating layer, an inner reinforcing isolation layer made of Liquid Crystal Polyester (LCP) or aramid fiber, a buffer layer made of ethylene tetrafluoroethylene copolymer or polyether ether ketone, an aramid fiber braided reinforcing layer and an ethylene tetrafluoroethylene copolymer ETFE sheath; the long-term working temperature of the optical cable reaches-65 ℃ to +150 ℃, and particularly the use requirement under high and low temperature environments can be met;
(6) high flame retardance, aging resistance, long service life and corrosion resistance: the optical cable is made of high-temperature-resistant special materials, has good high-low temperature characteristics, flame retardant property, aging resistance, long service life and corrosion resistance, and meets the requirements of digital communication transmission in aerospace and other harsh occasions requiring light weight, large transmission capacity, electromagnetic interference resistance and the like. The optical cable considers the application applicability and safety of military products, and meets the special use environment requirements of high and low temperature, high strength, bending resistance, impact resistance, aging resistance, long service life, corrosion resistance, mildew resistance, high flame retardance and the like.
Drawings
Fig. 1 the structure of the optical cable of the present invention is schematically illustrated
1-an optical fiber; 2-inner reinforcement isolation layer; 3-a buffer layer; 4-an external reinforcement layer; 5-sheath layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
The present invention will be described in detail below with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art.
As shown in the attached drawing 1, the loose tube optical cable of the present invention comprises an optical fiber 1 and an inner reinforced isolation layer 2 from inside to outside; a buffer layer 3; an external reinforcing layer 4; a sheath layer 5.
Wherein the optical fiber 1 adopts high temperature resistant quartz optical fiber, the optical fiber can be single mode or multimode, as shown in figure 1, the temperature resistant range of the adopted optical fiber is-65 ℃ to +200 ℃, and the diameter of the optical fiber 1 is selected from 180 μm to 250 μm;
the inner reinforcing isolation layer 2 is made of Liquid Crystal Polyester (LCP) or aromatic polyamide fiber, and wraps the periphery of the optical fiber (1), and the outer diameter of the inner reinforcing isolation layer is not more than 0.5 mm. If the inner reinforced isolation layer 2 is made of liquid crystal polyester material, the optical cable is a non-fiber reinforced loose tube optical cable; if the inner strengthening isolation layer adopts aromatic polyamide fiber, the fiber-reinforced loose tube optical cable is adopted.
The buffer layer 3 is arranged on the outer layer of the inner reinforcing isolation layer 2 made of liquid crystal polyester or aromatic polyamide fiber, the buffer layer material is selected from ethylene tetrafluoroethylene copolymer (ETFE) or polyether ether ketone (PEEK), the stripping force of the buffer layer and the inner reinforcing isolation layer (2) is not more than 6N/m, the optical fiber and the insulation layer can freely move in the buffer layer, and the excess length of the optical fiber exists, so that the optical fiber is subjected to small stress when the optical cable is bent, and therefore the influence of attenuation change is small. Wherein the temperature resistant range of the ETFE copolymer is-65 ℃ to +150 ℃, and the temperature resistant range of the PEEK is-65 ℃ to +200 ℃;
the outer reinforcing layer 4 is formed by weaving aramid fibers by a low-tension high-speed weaving machine and wraps the periphery of the buffer layer 3, and the temperature resistance range of the outer reinforcing layer is-196 ℃ to +204 ℃;
the ethylene tetrafluoroethylene copolymer is extruded by a high-temperature extruding machine and is wrapped on the periphery of the outer reinforced layer 4 to be used as a sheath layer 5, the temperature resistance range is-65 ℃ to +150 ℃, and the outer diameter is not more than 3.0 mm.
Experiments were performed with the following results on cables made with two different inner reinforcing barrier materials, and the data are shown in the following two tables:
table one: relevant experiment and result when liquid crystal polyester material is adopted as inner reinforcing isolation layer
Table two: relevant experiment and result when aromatic polyamide fiber is adopted as inner reinforcing isolation layer
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. The utility model provides a high temperature resistant special type loose tube optical cable of enhancement mode, includes optic fibre (1), its characterized in that still includes the following layer of arranging in proper order:
the inner reinforcing isolation layer (2) is made of liquid crystal polyester material or aromatic polyamide fiber;
the buffer layer (3) is made of ethylene tetrafluoroethylene copolymer or polyether ether ketone material, and the stripping force of the buffer layer and the inner reinforcing isolation layer (2) is not more than 6N/m;
an external reinforcing layer (4) made of aromatic polyamide fiber material;
the sheath layer (5) is made of ethylene tetrafluoroethylene copolymer material.
2. The loose optical cable according to claim 1, wherein the optical fiber has a temperature resistance range of-65 ℃ to +200 ℃, and the diameter of the optical fiber (1) is selected from 0.18mm to 0.25 mm.
3. Loose tube optical cable according to claim 1, characterized in that the outer diameter of the inner strength isolation layer (2) does not exceed 0.5 mm.
4. The loose tube optical cable according to claim 1, wherein the ethylene tetrafluoroethylene copolymer used in the buffer layer (3) has a temperature resistance range of-65 ℃ to +150 ℃, and the polyetheretherketone has a temperature resistance range of-65 ℃ to +200 ℃; the temperature resistant range of the ethylene tetrafluoroethylene copolymer used in the sheath layer (5) is-65 ℃ to +150 ℃.
5. The loose tube optical cable according to claim 1, wherein the aromatic polyamide fiber used for the inner reinforcement isolation layer (2) and the outer reinforcement layer (4) has a temperature resistance range of-196 ℃ to +204 ℃.
6. Loose tube optical cable according to claim 1, characterized in that the outer diameter of the sheath layer (5) does not exceed 3.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020339477.3U CN211603641U (en) | 2020-03-18 | 2020-03-18 | Enhanced high-temperature-resistant special loose-tube optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020339477.3U CN211603641U (en) | 2020-03-18 | 2020-03-18 | Enhanced high-temperature-resistant special loose-tube optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211603641U true CN211603641U (en) | 2020-09-29 |
Family
ID=72582482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020339477.3U Active CN211603641U (en) | 2020-03-18 | 2020-03-18 | Enhanced high-temperature-resistant special loose-tube optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211603641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904508A (en) * | 2021-01-29 | 2021-06-04 | 上海交通大学 | Full-sea-depth self-untwisting micro optical cable and distribution device |
| CN113253407A (en) * | 2021-04-30 | 2021-08-13 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Method for manufacturing extravehicular irradiation-resistant bundled optical cable |
-
2020
- 2020-03-18 CN CN202020339477.3U patent/CN211603641U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904508A (en) * | 2021-01-29 | 2021-06-04 | 上海交通大学 | Full-sea-depth self-untwisting micro optical cable and distribution device |
| CN112904508B (en) * | 2021-01-29 | 2024-04-16 | 上海交通大学 | Operation method of full-sea-depth self-untwisting micro optical cable laying device |
| CN113253407A (en) * | 2021-04-30 | 2021-08-13 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Method for manufacturing extravehicular irradiation-resistant bundled optical cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101679663B1 (en) | Optical and power composite cable | |
| CN211603641U (en) | Enhanced high-temperature-resistant special loose-tube optical cable | |
| CN103492922A (en) | Optical-fiber interconnect cable | |
| CN201229797Y (en) | Armored component system for electric cable assembly | |
| KR100490136B1 (en) | All-Dielectric, Self-Supporting, Loose-Tube Optical Fiber Cable | |
| US20200225435A1 (en) | Fiber multitube optical fiber cable | |
| CA2981516C (en) | Ultra-high fiber density micro-duct cable with extreme operating performance | |
| CN106847389A (en) | A kind of optoelectrical cable | |
| CN102621647B (en) | Irregular cable | |
| CN210835374U (en) | High-strength access optical cable | |
| CN201477251U (en) | Optical fiber cable with fiber tightly packaged | |
| CN204143015U (en) | The two sheath twin-core circular optical cable of high stability | |
| KR20140051538A (en) | Tight buffered optical fiber and distribution/break-out cable using the same | |
| EP3226047B1 (en) | Single layer optical fiber cable for microduct application | |
| CN205507166U (en) | Open -air waterproof communication optical fiber wire jumper | |
| EP4239386A1 (en) | Optical fiber cable with elongated strength members and manufacturing method thereof | |
| CN109001878A (en) | A kind of flexibility all dielectric self-supporting butterfly leading in cable | |
| CN213399005U (en) | Tensile low-friction field emergency tight-sleeved optical cable | |
| KR102063295B1 (en) | Optical cable including optical fiber of reduced diameter | |
| CN109541764B (en) | Optical fiber and optical cable using the same | |
| CN215895054U (en) | Waterproof durable central beam tube type optical cable | |
| CN210575152U (en) | Photoelectric mixed cable and network cable | |
| CN217214223U (en) | High-strength flexible robot cable | |
| CN201740895U (en) | Cable | |
| CN209804284U (en) | Coaxial photoelectric composite cable for aviation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |