CN111812789A - Butterfly-shaped optical cable - Google Patents
Butterfly-shaped optical cable Download PDFInfo
- Publication number
- CN111812789A CN111812789A CN202010730789.1A CN202010730789A CN111812789A CN 111812789 A CN111812789 A CN 111812789A CN 202010730789 A CN202010730789 A CN 202010730789A CN 111812789 A CN111812789 A CN 111812789A
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- section
- butterfly
- cable core
- optical cable
- side exhibition
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- 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
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- 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
-
- 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
- G02B6/4432—Protective covering with fibre reinforcements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention belongs to the field of optical cables, and particularly relates to a butterfly-shaped optical cable. It includes: the sheath layer, the framework and the cable core part; the cable core is formed by coating a single-mode or multi-mode optical fiber or an optical fiber bundle by a bundle tube; the framework is coated on the cable core to form a whole and then embedded in the sheath layer; the skeleton comprises center cover and side exhibition wing two parts, and the center cover cladding is outside at the cable core, and the side exhibition wing divide into left side exhibition wing and right side exhibition wing, and left side exhibition wing and right side exhibition wing use the cable core to set up in turn as central bilateral symmetry extension and along optical cable axial direction in the axial of restrictive coating cross-section. The butterfly-shaped optical cable has excellent vibration resistance and pressure resistance; meanwhile, the anti-bending material has good anti-bending performance.
Description
Technical Field
The invention belongs to the field of optical cables, and particularly relates to a butterfly-shaped optical cable.
Background
Optical fiber cables are cables for transmitting optical signals in the field of communications, and have been developed rapidly in recent years and various optical fiber cables have been produced.
The butterfly-shaped optical cable is a very common optical cable type, is a novel user access optical cable, can reasonably design an optical cable structure and various technical parameters according to different application environments and laying conditions, integrates the characteristics of an indoor soft optical cable and a self-supporting optical cable, is a best alternative product for solving the FTTX (fiber to the x-ray transmission) network, and can play a unique role in constructing networks such as an intelligent building, a digital community, a campus network, a local area network and the like.
However, since the butterfly-shaped optical cable is thin and does not form an effective vibration and pressure resistant structure, when the butterfly-shaped optical cable is subjected to a large external pressure or in a special area with multiple micro-vibrations or in an environment such as a factory workshop where vibrations are caused by equipment, the vibration and pressure resistant performance of the optical fiber inside the optical cable is limited, which easily causes a rapid increase in optical fiber loss and even causes damage to the optical cable.
Disclosure of Invention
The invention provides a butterfly-shaped optical cable, aiming at solving the problems that the existing butterfly-shaped optical cable is weak in anti-vibration and anti-pressure performance and even does not have good anti-vibration performance and the like.
The invention aims to:
firstly, the vibration resistance and pressure resistance of the butterfly-shaped optical cable are improved;
and secondly, the bending resistance of the optical cable is improved.
In order to achieve the purpose, the invention adopts the following technical scheme.
A butterfly-shaped fiber optic cable, comprising:
the sheath layer, the framework and the cable core part;
the cable core is formed by coating a single-mode or multi-mode optical fiber or an optical fiber bundle by a bundle tube;
the framework is coated on the cable core to form a whole and then embedded in the sheath layer;
the skeleton comprises center cover and side exhibition wing two parts, and the center cover cladding is outside at the cable core, and the side exhibition wing divide into left side exhibition wing and right side exhibition wing, and left side exhibition wing and right side exhibition wing use the cable core as central bilateral symmetry extension, set up in turn along optical cable axial direction in the axial of restrictive coating cross-section, and left side exhibition wing and right side exhibition wing are crisscross each other.
As a preference, the first and second liquid crystal compositions are,
the side expansion wing consists of an elliptical section and a circular section;
one end of the oval section is fixedly connected with the outer wall of the central sleeve, and the other end of the oval section is fixedly connected with the round section.
As a preference, the first and second liquid crystal compositions are,
the circle center of the circular section and the axis of the central sleeve are respectively superposed with two focuses of the long axis of the elliptical section.
As a preference, the first and second liquid crystal compositions are,
the length of the long axis of the oval section is 2.5-3.0 times of the outer diameter of the cable core.
As a preference, the first and second liquid crystal compositions are,
the sheath layer is also provided with a circular cavity which is symmetrical left and right in the axial direction of the section of the sheath layer and takes the cable core as the center;
and a reinforcing piece is arranged in the cavity.
As a preference, the first and second liquid crystal compositions are,
the reinforcing piece is a phosphated steel wire.
As a preference, the first and second liquid crystal compositions are,
the sheath layer is also provided with a circular cavity which is symmetrical left and right in the axial direction of the section of the sheath layer and takes the cable core as the center;
a reinforcing piece is arranged in the cavity, and the reinforcing piece is a phosphated steel wire;
the circle center of the cavity is coincided with the circle center of the circular section.
The invention has the beneficial effects that:
1) the butterfly-shaped optical cable has excellent vibration resistance and pressure resistance;
2) meanwhile, the anti-bending material has good anti-bending performance.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the carcass and cable core portion of the present invention;
FIG. 3 is a graph illustrating vibration stress analysis of the butterfly-shaped optical cable of the present invention;
in the figure: 100 sheath layers, 101 cavities, 200 skeletons, 201 central sleeves, 202 side spread wings, 202A left side spread wings, 202B right side spread wings, 300 cable cores, 301 bundle tubes, 302 single-mode or multi-mode optical fibers or optical fiber bundles and 400 reinforcing parts.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to specific embodiments and the attached drawing figures. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless otherwise specified, the raw materials used in the examples of the present invention are all commercially available or available to those skilled in the art; unless otherwise specified, the methods used in the examples of the present invention are all those known to those skilled in the art.
Examples
A butterfly-shaped optical cable as shown in figure 1 specifically comprises:
sheath layer 100, skeleton 200 and cable core 300;
the cable core 300 is formed by a bundle tube 301 covering a single-mode or multi-mode optical fiber or optical fiber bundle 302;
the framework 200 wraps the cable core 300 to form a whole and then is embedded in the sheath layer 100;
the framework 200 is shown in fig. 1 and fig. 2, and is composed of a central sleeve 201 and a side-spreading wing 202;
the central sheath 201 covers the outside of the cable core 300, and fixes and mechanically protects the cable core 300, for convenience of explaining the side wings 202, as shown in fig. 1, the side wings are respectively called as a left side wing 202A and a right side wing 202B, the left side wing 202A and the right side wing 202B extend in bilateral symmetry with the cable core 300 as the center in the axial direction of the cross section of the sheath layer 100, and are alternately arranged as shown in fig. 2, and the left side wing 202A and the right side wing 202B are staggered and closely contacted with each other to generate crossing;
the side wings 202 are illustrated by taking the left side wing 202A in fig. 1 as an example, the section a is an elliptical section and is connected with the central sleeve 201, the right focus of the long axis of the section a coincides with the axis of the cable core 300, the length of the long axis is 2.5 to 3.0 times of the outer diameter of the cable core 300, the section B is a circular section, the circle center of the section B coincides with the left focus of the long axis of the section a, and the right side wing 202B is opposite to the section a;
in the framework 200 with the above structure, the overall gravity center formed by the left side wings 202A and the central sleeve 201 is substantially in the region C in fig. 1, the overall gravity center formed by the right side wings 202B and the central sleeve 201 is substantially in the region D in fig. 1, and the gravity center of the overall structure is still at the axis center of the cable core 300, but when the cable core is subjected to external pressure and vibration, the gravity centers are actually distributed in a zigzag shape along the axial segment due to the staggered arrangement of the left and right side wings;
in the optical cable with the structure, as shown in fig. 3, when the optical cable is subjected to the action of the vertical vibration force F1, the framework 200 part inevitably deforms and vibrates along with the whole optical cable, but due to the structural particularity of the invention, the invention is obviously different from the deformation of the framework 200 and the cable core 300 in the conventional optical cable;
first, taking an example of an instantaneous upward force in the vibration force F1 as an example, as shown in fig. 2, due to a special structure that the center of gravity of the optical cable is distributed along the axial direction in a segmented manner, the deformation and the vibration tendency of the framework 200 and the cable core 300 of the left-side span wing 202A section and the right-side span wing 202B section are different, and taking an example of the left-side span wing 202A section in fig. 2 and 3 as an example, the section is divided into an E section and an F section in the figure by taking the center of gravity as a boundary, the E section includes a small part of the a section of the center sheath 201 and the left-side span wing 202A section, and the F section includes a large part of the left-side span wing 202A section and a section B section, it is obvious that in the technical solution of the present invention, the moment arm of the E section is significantly smaller than that of the F section, and due to the structural particularity of the framework 200, the F section generates a larger acting force, therefore, a difference is generated, due to the existence of the difference and the particularity of the position of the center of gravity, the center of gravity part necessarily needs to be vertically raised, and then a special torsion is formed, as shown in fig. 3, part F generates a certain rotation acceleration along the direction a, part E passively generates a certain rotation acceleration along the direction B, so that the whole formed by part E and part F in fig. 3 generates torsion along the clockwise direction, and the rotation acceleration along the direction B of part E can offset the external force to a certain extent, which weakens the influence of the force F1 on the part 300 of the cable core, and similarly, part G and part H of the right-side exhibition wing 202B generate accelerations along the directions d and c respectively, and the whole generates the same torsion effect, and the rotation acceleration directions of B and d are opposite, the torsion force in the horizontal direction can be offset, only the force in the vertical direction is left, the whole cable core 300 part achieves a relatively excellent anti-vibration effect, and meanwhile, due to the existence of the framework 200, the optical cable also has a certain anti-compression effect.
Further, the air conditioner is provided with a fan,
the sheath layer 100 is also provided with a circular cavity 101 which is symmetrical left and right by taking the cable core 300 as the center in the axial direction of the cross section of the sheath layer 100, a reinforcing piece 400 is arranged in the cavity 101, and the reinforcing piece 400 is a phosphated steel wire;
the outer diameter of the reinforcing part 400 is slightly smaller than the inner diameter of the cavity 101, and the circle center of the circular cavity 101 is overlapped with the circle center of the B section of the side span wing 202;
the setting of reinforcement 400 can improve the compressive property of whole butterfly-shaped optical cable, and reinforcement 400 external diameter slightly is less than cavity 101 internal diameter, when receiving pressure, earlier through skeleton 200 resistance to pressure, when pressure is too big leads to cavity 101 to warp, and reinforcement 400 plays the effect again.
The butterfly-shaped optical cable is subjected to a vibration resistance test:
in the test, 10 sections of butterfly-shaped optical cables with the length of 15 +/-0.3 cm are taken, the end parts of the two ends of the butterfly-shaped optical cables are fixed on a test bed, the amplitude of the test bed is adjusted to be 0.75mm, the frequency of the test bed is adjusted to be 30Hz, the test lasts for 30d, and the conventional butterfly-shaped optical cables sold in the market are taken as a control group for test comparison. And after the test is finished, detecting the optical fiber loss of the optical cable, wherein the test adopts an OLT-55 intelligent optical fiber loss tester and compares the optical fiber loss with the performance of the optical fiber in the original optical cable. The comparative results are shown in table 1 below.
TABLE 1 comparative results of vibration tests
In the table: the relative change rate of the optical fiber loss is compared with the same optical cable without the vibration test in the test result, and the symbol ↓ indicates that the optical fiber loss is promoted compared with the optical fiber loss of the same optical cable without the vibration test.
As is apparent from table 1 above, the optical cable of the present invention has excellent vibration resistance, and is very suitable for use in a vibration environment.
Claims (7)
1. A butterfly-shaped fiber optic cable, comprising:
the sheath layer, the framework and the cable core part;
the cable core is formed by coating a single-mode or multi-mode optical fiber or an optical fiber bundle by a bundle tube;
the framework is coated on the cable core to form a whole and then embedded in the sheath layer;
the skeleton comprises center cover and side exhibition wing two parts, and the center cover cladding is outside at the cable core, and the side exhibition wing divide into left side exhibition wing and right side exhibition wing, and left side exhibition wing and right side exhibition wing use the cable core as central bilateral symmetry extension, set up in turn along optical cable axial direction in the axial of restrictive coating cross-section, and left side exhibition wing and right side exhibition wing are crisscross each other.
2. The butterfly-shaped optical cable according to claim 1,
the side expansion wing consists of an elliptical section and a circular section;
one end of the oval section is fixedly connected with the outer wall of the central sleeve, and the other end of the oval section is fixedly connected with the round section.
3. The butterfly-shaped optical cable according to claim 2,
the circle center of the circular section and the axis of the central sleeve are respectively superposed with two focuses of the long axis of the elliptical section.
4. The butterfly-shaped optical cable according to claim 2,
the length of the long axis of the oval section is 2.5-3.0 times of the outer diameter of the cable core.
5. The butterfly-shaped optical cable according to claim 1,
the sheath layer is also provided with a circular cavity which is symmetrical left and right in the axial direction of the section of the sheath layer and takes the cable core as the center;
and a reinforcing piece is arranged in the cavity.
6. The butterfly-shaped optical cable according to claim 5,
the reinforcing piece is a phosphated steel wire.
7. The butterfly-shaped optical cable according to claim 2,
the sheath layer is also provided with a circular cavity which is symmetrical left and right in the axial direction of the section of the sheath layer and takes the cable core as the center;
a reinforcing piece is arranged in the cavity, and the reinforcing piece is a phosphated steel wire;
the circle center of the cavity is coincided with the circle center of the circular section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730789.1A CN111812789B (en) | 2020-07-27 | 2020-07-27 | Butterfly-shaped optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730789.1A CN111812789B (en) | 2020-07-27 | 2020-07-27 | Butterfly-shaped optical cable |
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| Publication Number | Publication Date |
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| CN111812789A true CN111812789A (en) | 2020-10-23 |
| CN111812789B CN111812789B (en) | 2022-08-30 |
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| CN202010730789.1A Active CN111812789B (en) | 2020-07-27 | 2020-07-27 | Butterfly-shaped optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115933087A (en) * | 2022-12-27 | 2023-04-07 | 江苏华脉新材料有限公司 | Butterfly-shaped optical cable and production process thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7289704B1 (en) * | 2006-10-31 | 2007-10-30 | Corning Cable Systems Llc | Fiber optic cables that kink with small bend radii |
| JP2007299562A (en) * | 2006-04-28 | 2007-11-15 | Hitachi Cable Ltd | Bending resistant cable, cable for automobile, and cable for robot |
| CN105954851A (en) * | 2016-07-15 | 2016-09-21 | 杭州富通通信技术股份有限公司 | Butterfly optical cable |
| CN106125254A (en) * | 2016-08-24 | 2016-11-16 | 东方电气集团东方锅炉股份有限公司 | A kind of differential of the arc face reflecting mirror punching press backboard |
| CN206383799U (en) * | 2017-01-07 | 2017-08-08 | 昆山联捷机电有限公司 | Shock bracket |
| CN108919452A (en) * | 2018-09-20 | 2018-11-30 | 苏州大成瑞丰通信科技有限公司 | A kind of shock resistance butterfly leading in cable and its jumping fiber |
| JP2019102424A (en) * | 2018-08-01 | 2019-06-24 | 日立金属株式会社 | Cable with braided shield |
| CN209928099U (en) * | 2019-06-14 | 2020-01-10 | 苏州托瑞斯光电科技有限公司 | Miniature butterfly-shaped lead-in optical cable tied in a bundle |
| CN210323486U (en) * | 2019-06-13 | 2020-04-14 | 苏州托瑞斯光电科技有限公司 | Novel independent butterfly-shaped optical cable |
| CN111427125A (en) * | 2020-03-30 | 2020-07-17 | 杭州富通通信技术股份有限公司 | Butterfly-shaped optical cable capable of preventing mouse biting |
-
2020
- 2020-07-27 CN CN202010730789.1A patent/CN111812789B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007299562A (en) * | 2006-04-28 | 2007-11-15 | Hitachi Cable Ltd | Bending resistant cable, cable for automobile, and cable for robot |
| US7289704B1 (en) * | 2006-10-31 | 2007-10-30 | Corning Cable Systems Llc | Fiber optic cables that kink with small bend radii |
| CN105954851A (en) * | 2016-07-15 | 2016-09-21 | 杭州富通通信技术股份有限公司 | Butterfly optical cable |
| CN106125254A (en) * | 2016-08-24 | 2016-11-16 | 东方电气集团东方锅炉股份有限公司 | A kind of differential of the arc face reflecting mirror punching press backboard |
| CN206383799U (en) * | 2017-01-07 | 2017-08-08 | 昆山联捷机电有限公司 | Shock bracket |
| JP2019102424A (en) * | 2018-08-01 | 2019-06-24 | 日立金属株式会社 | Cable with braided shield |
| CN108919452A (en) * | 2018-09-20 | 2018-11-30 | 苏州大成瑞丰通信科技有限公司 | A kind of shock resistance butterfly leading in cable and its jumping fiber |
| CN210323486U (en) * | 2019-06-13 | 2020-04-14 | 苏州托瑞斯光电科技有限公司 | Novel independent butterfly-shaped optical cable |
| CN209928099U (en) * | 2019-06-14 | 2020-01-10 | 苏州托瑞斯光电科技有限公司 | Miniature butterfly-shaped lead-in optical cable tied in a bundle |
| CN111427125A (en) * | 2020-03-30 | 2020-07-17 | 杭州富通通信技术股份有限公司 | Butterfly-shaped optical cable capable of preventing mouse biting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115933087A (en) * | 2022-12-27 | 2023-04-07 | 江苏华脉新材料有限公司 | Butterfly-shaped optical cable and production process thereof |
| CN115933087B (en) * | 2022-12-27 | 2023-09-29 | 江苏华脉新材料有限公司 | Butterfly-shaped optical cable and production process thereof |
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| Publication number | Publication date |
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| CN111812789B (en) | 2022-08-30 |
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