CN114758826A - Optical cable - Google Patents
Optical cable Download PDFInfo
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- CN114758826A CN114758826A CN202210488788.XA CN202210488788A CN114758826A CN 114758826 A CN114758826 A CN 114758826A CN 202210488788 A CN202210488788 A CN 202210488788A CN 114758826 A CN114758826 A CN 114758826A
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- Prior art keywords
- optical fiber
- conductive core
- optical cable
- triangular
- optical
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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Abstract
The invention belongs to the field of cables, and particularly relates to an optical cable. It comprises the following steps: the section of the triangular sheath is in an isosceles triangle shape, and two conductive core monomers and an optical fiber core monomer are arranged in the triangular sheath; the conductive core monomer and the optical fiber core monomer are both spindle-shaped, and are abutted end to end and constrained by the triangular sheath to form a composite wire; the conductive core single bodies are arranged above the optical fiber core single bodies and are arranged in a bilateral symmetry mode, and conductive wires are arranged inside the conductive core single bodies; an optical fiber wire is arranged in the optical fiber core monomer; and V-shaped reinforcing parts are arranged in the top corners of the triangular sheaths, and two ends of the V-shaped reinforcing parts extend downwards along the inner walls of the triangular sheaths on the cross sections of the optical cables to abut against the outer surfaces of the conductive core monomers. According to the invention, through the special matching of the plurality of conductive core monomers and the optical fiber core monomers, and the triangular outer sheath is used for restraining the conductive core monomers and the optical fiber core monomers to form the composite wire, the composite wire can generate the tendency of disintegration and deformation after being stressed, so that the optical fiber wire part can be prevented from being directly stressed all the time.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to an optical cable.
Background
In recent years, with the great development of optical fiber communication and high-voltage power transmission power grids in China, the use demand of optical cables with optical and electrical transmission is greatly increased. Problems also arise with this.
For example, the cable has high structural stability, and is not easily damaged under pressure compared with the optical cable, and the optical cable integrating the functions of the optical cable and the cable has a compact internal space and generally does not have good pressure resistance. However, most optical cables are buried and covered, a rigid pipeline is arranged on the outer surface of the optical cable buried in a deep layer to protect the optical cable, most optical cables buried in a shallow layer are directly laid and covered, and the optical cable is easily damaged or the optical signal transmission performance of the optical cable is weakened after pressure is applied. The optical cable buried in the shallow layer is a low-cost and quick covering mode, so that the additional arrangement of the rigid protection pipeline can greatly increase the cost and delay the construction period.
Therefore, it is an important research direction to improve the self-compression resistance of the optical cable buried in shallow layer.
Disclosure of Invention
The invention provides an optical cable, aiming at solving the problems that the existing optical cable has limited compression resistance, and particularly for the optical cable buried in a shallow layer, the optical cable is easy to be subjected to pressure after being buried, so that the optical signal transmission performance is weakened, even the optical fiber part is damaged, and the like.
The invention aims to:
1) the compression resistance of the optical cable is improved;
2) the optical cable can be deformed in a guiding way after being pressed, and the optical fiber part is effectively protected.
In order to achieve the purpose, the invention adopts the following technical scheme.
An optical cable, comprising:
the section of the triangular sheath is in an isosceles triangle shape, and two conductive core monomers and an optical fiber core monomer are arranged in the triangular sheath;
the conductive core monomer and the optical fiber core monomer are both spindle-shaped, the conductive core monomer and the optical fiber core monomer are abutted end to form a ring, the outer wall of the conductive core monomer and the optical fiber core monomer are connected on the section of the optical cable to form a circle abutted against the inner wall of the triangular sheath, and the conductive core monomer and the optical fiber core monomer are constrained by the triangular sheath to form a composite wire;
the conductive core single bodies are arranged above the optical fiber core single bodies and are arranged in a bilateral symmetry mode, and conductive wires are arranged inside the conductive core single bodies;
an optical fiber wire is arranged in the optical fiber core monomer;
the V-shaped reinforcing piece is arranged inside the top corner of the triangular sheath and is arranged along the axial direction of the optical cable, the V-shaped reinforcing piece is attached to the inner wall of the top corner of the triangular sheath, and two ends of the V-shaped reinforcing piece extend downwards along the inner wall of the triangular sheath to abut against the outer surface of the conductive core monomer on the cross section of the optical cable.
As a preference, the first and second liquid crystal compositions are,
the composite wire is hollow at the axis and is provided with a hollow tube along the axial direction of the optical cable, and the outer wall of the hollow tube is tangent to both the conductive core monomer and the optical fiber core monomer.
As a matter of preference,
and an insulating film is arranged on the outer surface of the conductive wire.
As a preference, the first and second liquid crystal compositions are,
the optical fiber line is externally coated with a beam tube;
the optical fiber line is formed by wrapping a single optical fiber or an optical fiber bundle containing a plurality of optical fibers by a non-woven fabric wrapping tape.
As a preference, the first and second liquid crystal compositions are,
symmetrical bottom reinforcing parts are arranged in two bottom corners of the triangular sheath.
As a preference, the first and second liquid crystal compositions are,
the bottom reinforcing piece is J-shaped and is attached to the bottom corner of the triangular sheath;
the bottom reinforcement is arranged on the cross section of the optical cable, and one end attached to the bottom of the triangular sheath extends to the two sides of the optical fiber cable monomer along the inner wall of the bottom of the triangular sheath.
As a preference, the first and second liquid crystal compositions are,
the inner side of the V-shaped reinforcing part is provided with a hollow buffer tube which is tangent to the inner walls of the two sides of the V-shaped reinforcing part and is downwards abutted to the uppermost end of the conductive core monomer.
As a preference, the first and second liquid crystal compositions are,
the conductive core single body is internally provided with a line cavity with a spindle-shaped section, and the line cavity and the conductive core single body are in a similar structure on the radial section of the optical cable.
As a matter of preference,
a sleeve is arranged outside the conductive wire;
two tip parts of the outer wall of the sleeve facing the spindle-shaped thread cavity are respectively provided with a support rib, and the support ribs are respectively abutted against the inner walls of the two tip parts of the spindle-shaped thread cavity.
The invention has the beneficial effects that:
1) through the special matching of the plurality of conductive core monomers and the optical fiber core monomers, the conductive core monomers and the optical fiber core monomers are restrained by the triangular outer sheath to form a composite wire, and the composite wire can generate the tendency of 'disintegration' and deformation after being stressed, so that the optical fiber part can be prevented from being directly stressed all the time;
2) through deformation and rigid transmission of partial force, the optical fiber line is prevented from being directly stressed, the action of external force received between the optical fiber lines is reduced, and a good compression-resistant protection effect is generated on the optical fiber line.
Description of the drawings:
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a force-guiding diagram of an optical cable according to the present invention;
FIG. 3 is a schematic diagram of a cable under stress deformation according to the present invention;
in the figure: 100 triangular sheath, 200 conductive core single body, 201 wire cavity, 300 optical fiber core single body, 400 conductive wire, 401 double-layer insulating film, 402 sleeve, 4021 support rib, 500 optical fiber wire, 501 beam tube, 600 hollow tube, 700V-shaped reinforcing element, 701 hollow buffer tube and 800 bottom reinforcing element.
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 explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; 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 according to specific situations by those of ordinary skill in the art.
Unless otherwise specified, all the raw materials used in the examples of the present invention are 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
An optical cable as shown in fig. 1, comprising in particular:
the triangular sheath 100 with the isosceles triangle section is provided with two conductive core monomers 200 and an optical fiber monomer 300 in the triangular sheath 100;
the conductive core single body 200 and the optical fiber single body 300 are both spindle-shaped, the end and the tail of the conductive core single body are abutted to form a ring, the outer wall of the conductive core single body is connected to the cross section of the optical cable to form a circle abutted to the inner wall of the triangular sheath 100, and the conductive core single body and the optical fiber single body are constrained by the triangular sheath 100 to form a composite wire;
the composite cable is hollow in the axis and is provided with the hollow tube 600 along the axial direction of the optical cable, the outer wall of the hollow tube 600 is tangent to the conductive core monomer 200 and the optical fiber monomer 300, the arrangement of the hollow tube 600 can prevent the conductive core monomer 200 and the optical fiber monomer 300 from extruding towards the axis of the cable, and on the other hand, the hollow elastic tube has good adaptive deformation capacity and can adapt to deformation to play a role in guiding;
the conductive core single body 200 is arranged above the optical fiber single body 300 and is arranged in a bilateral symmetry mode, a conductive wire 400 is arranged in the conductive core single body, and a double-layer insulating film 401 is arranged on the outer surface of the conductive wire 400;
the optical fiber line unit 300 is internally provided with an optical fiber line 500, the optical fiber line 500 is formed by wrapping a single optical fiber or an optical fiber bundle containing a plurality of optical fibers with a non-woven fabric wrapping tape, and the optical fiber line 500 is externally wrapped with a bundle tube 501 for mechanical protection;
the V-shaped reinforcing piece 700 is arranged inside the top corner of the triangular sheath 100, the V-shaped reinforcing piece 700 is arranged along the axial direction of the optical cable and is attached to the inner wall of the top corner of the triangular sheath 100, and two ends of the optical cable extend downwards along the inner wall of the triangular sheath 100 on the cross section of the optical cable to abut against the outer surface of the conductive core single body 200;
symmetrical bottom reinforcements 800 are arranged in two bottom corners of the triangular sheath 100, the bottom reinforcements 800 are J-shaped and are arranged in a mode of being attached to the bottom corners of the triangular sheath 100, and one end of the bottom of the triangular sheath 100 extends to be abutted against two sides of the optical fiber single body 300 along the inner wall of the bottom of the triangular sheath 100 on the cross section of the optical cable;
under the cooperation of the structures, the triangular sheath 100, the V-shaped reinforcing piece 700 and the J-shaped reinforcing piece realize the restraint of the composite wire to a certain extent, so that the composite wire forms a semi-stable whole and keeps complete appearance without external force;
as shown in fig. 2 and 3, when the optical cable is stressed, the vertex angle presses down to drive two ends of the V-shaped reinforcement 700 to apply an oblique downward acting force to the conductive core single body 200, because the outer surface of the conductive core single body 200 is arc-shaped, the V-shaped reinforcement 700 can also drive two side walls of the triangular sheath 100 to be unfolded to a certain extent, and a margin space is formed after the two side walls are unfolded, because of the structural characteristics of the fusiform optical fiber single body 300, the conductive core single body 200 can also laterally shift to generate an oblique downward movement until the lower end part of the conductive core single body abuts against the bottom reinforcement 800, in the process, the optical fiber single body 300 is stressed little, and the conductive wire 400 arranged in the conductive core single body 200 has better mechanical performance and is not easy to be damaged by stress, so that the inner space of the optical cable is effectively utilized and the optical fiber 500 is effectively protected by replacing a force bearing mode;
the inner side of the V-shaped reinforcing part 700 is provided with a hollow buffer tube 701 which is tangent to the inner walls of the two sides of the V-shaped reinforcing part and is downwards abutted to the uppermost end of the single conductive core body 200, the hollow buffer tube 701 is arranged to further play a role in assisting the deformation of the V-shaped reinforcing part 700 and the guiding of the single conductive core body 200, and meanwhile, the V-shaped reinforcing part 700 can be assisted to reset and restore;
after the external force disappears, the optical cable is elastically matched through multiple structures, so that the resetting effect is easily generated, and the optical cable is effectively prevented from generating permanent deformation to a greater extent.
Further, the method comprises the following steps of;
a spindle-shaped wire cavity 201 is arranged in the conductive core single body 200, the wire cavity 201 and the conductive core single body 200 are in a similar structure on the radial cross section of the optical cable, a sleeve 402 is further arranged on the outer surface of the double-layer insulating film 401 of the conductive wire 400, two tip parts of the outer wall of the sleeve 402 facing the spindle-shaped wire cavity 201 are respectively provided with a support rib 4021, and the support ribs 4021 are respectively abutted to the inner walls of the two tip parts of the spindle-shaped wire cavity 201;
the support ribs 4021 can effectively form a force-conducting effect, so that the force conduction to the bottom reinforcing part 800 can be effectively realized after the conductive core single body 200 is deformed and displaced, and the stress on the optical fiber single body 300 is avoided.
In addition, the optical cable of the invention has good compression resistance and impact resistance, and is easier to operate during branching due to the arrangement characteristics of the conductive core monomer 200 and the optical fiber single body 300.
Claims (9)
1. An optical cable, comprising:
the section of the triangular sheath is in an isosceles triangle shape, and two conductive core monomers and an optical fiber core monomer are arranged in the triangular sheath;
the conductive core monomer and the optical fiber core monomer are both spindle-shaped, the conductive core monomer and the optical fiber core monomer are abutted end to form a ring, the outer wall of the conductive core monomer and the optical fiber core monomer are connected on the section of the optical cable to form a circle abutted against the inner wall of the triangular sheath, and the conductive core monomer and the optical fiber core monomer are constrained by the triangular sheath to form a composite wire;
the conductive core single bodies are arranged above the optical fiber core single bodies and are arranged in a bilateral symmetry mode, and conductive wires are arranged inside the conductive core single bodies;
an optical fiber wire is arranged in the optical fiber core monomer;
the V-shaped reinforcing piece is arranged inside the top corner of the triangular sheath and is arranged along the axial direction of the optical cable, the V-shaped reinforcing piece is attached to the inner wall of the top corner of the triangular sheath, and two ends of the V-shaped reinforcing piece extend downwards along the inner wall of the triangular sheath to abut against the outer surface of the conductive core monomer on the cross section of the optical cable.
2. An optical cable according to claim 1,
the composite wire is hollow at the axis and is provided with a hollow tube along the axial direction of the optical cable, and the outer wall of the hollow tube is tangent to both the conductive core monomer and the optical fiber core monomer.
3. An optical cable according to claim 1,
and an insulating film is arranged on the outer surface of the conductive wire.
4. An optical cable according to claim 1,
the optical fiber line is externally coated with a beam tube;
the optical fiber line is formed by wrapping a single optical fiber or an optical fiber bundle containing a plurality of optical fibers by a non-woven fabric wrapping tape.
5. An optical cable according to claim 1,
symmetrical bottom reinforcing parts are arranged in two bottom corners of the triangular sheath.
6. An optical cable according to claim 5,
the bottom reinforcing piece is J-shaped and is attached to the bottom corner of the triangular sheath;
the bottom reinforcement is arranged on the cross section of the optical cable, and one end of the bottom of the attached triangular sheath extends to the two sides of the optical fiber cable monomer along the inner wall of the bottom of the triangular sheath.
7. An optical cable according to claim 1,
the inner side of the V-shaped reinforcing part is provided with a hollow buffer tube which is tangent to the inner walls of the two sides of the V-shaped reinforcing part and is downwards abutted to the uppermost end of the conductive core monomer.
8. An optical cable according to claim 1,
the conductive core single body is internally provided with a line cavity with a spindle-shaped section, and the line cavity and the conductive core single body are in a similar structure on the radial section of the optical cable.
9. An optical cable according to claim 8,
a sleeve is arranged outside the conductive wire;
two tip parts of the outer wall of the sleeve facing the spindle-shaped thread cavity are respectively provided with a support rib, and the support ribs are respectively abutted against the inner walls of the two tip parts of the spindle-shaped thread cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210488788.XA CN114758826B (en) | 2022-05-06 | 2022-05-06 | Optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210488788.XA CN114758826B (en) | 2022-05-06 | 2022-05-06 | Optical cable |
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| CN114758826A true CN114758826A (en) | 2022-07-15 |
| CN114758826B CN114758826B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210488788.XA Active CN114758826B (en) | 2022-05-06 | 2022-05-06 | Optical cable |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB291769A (en) * | 1927-06-08 | 1929-06-20 | Duisburg Kabelwerk | Improvements in and relating to paper-insulated, multipleconductor, electric cables for carrying large currents |
| JPH07114830A (en) * | 1993-10-16 | 1995-05-02 | Sumitomo Electric Ind Ltd | Tube composite cable and manufacture thereof |
| CN203288341U (en) * | 2013-06-07 | 2013-11-13 | 江苏荣宜电缆有限公司 | Cross-linked polyethylene insulated armored sheath power cable |
| CN108761689A (en) * | 2018-07-02 | 2018-11-06 | 苏州大成瑞丰通信科技有限公司 | A kind of shock resistance optical cable |
| CN112835164A (en) * | 2021-02-22 | 2021-05-25 | 杭州富通通信技术股份有限公司 | Resistance to compression type area form optical cable |
| CN114325975A (en) * | 2021-12-03 | 2022-04-12 | 杭州富通通信技术股份有限公司 | Triangular optical cable |
-
2022
- 2022-05-06 CN CN202210488788.XA patent/CN114758826B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB291769A (en) * | 1927-06-08 | 1929-06-20 | Duisburg Kabelwerk | Improvements in and relating to paper-insulated, multipleconductor, electric cables for carrying large currents |
| JPH07114830A (en) * | 1993-10-16 | 1995-05-02 | Sumitomo Electric Ind Ltd | Tube composite cable and manufacture thereof |
| CN203288341U (en) * | 2013-06-07 | 2013-11-13 | 江苏荣宜电缆有限公司 | Cross-linked polyethylene insulated armored sheath power cable |
| CN108761689A (en) * | 2018-07-02 | 2018-11-06 | 苏州大成瑞丰通信科技有限公司 | A kind of shock resistance optical cable |
| CN112835164A (en) * | 2021-02-22 | 2021-05-25 | 杭州富通通信技术股份有限公司 | Resistance to compression type area form optical cable |
| CN114325975A (en) * | 2021-12-03 | 2022-04-12 | 杭州富通通信技术股份有限公司 | Triangular optical cable |
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| CN114758826B (en) | 2023-06-16 |
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