CN113380455B - Photoelectric hybrid cable - Google Patents
Photoelectric hybrid cable Download PDFInfo
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- CN113380455B CN113380455B CN202110728524.2A CN202110728524A CN113380455B CN 113380455 B CN113380455 B CN 113380455B CN 202110728524 A CN202110728524 A CN 202110728524A CN 113380455 B CN113380455 B CN 113380455B
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- shaped cavity
- cable
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- optical fiber
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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
- H01B7/17—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
- 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
- H01B7/1895—Internal space filling-up means
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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
Abstract
The invention belongs to the field of photoelectric hybrid cables, and particularly relates to a light photoelectric hybrid cable. It comprises the following steps: a sheath layer, an optical fiber line and a conductive line; the sheath layer is internally provided with a special-shaped cavity which is rotationally symmetrical and used for arranging an optical fiber line and a conductive wire; the special-shaped cavity is provided with convex parts and concave parts which are alternately arranged, and each convex part is provided with a plurality of ribs which are protruded inwards along the radial direction of the photoelectric mixed cable; the part with the ribs on both sides in the circumferential direction forms a buffer cavity which can be used for accommodating optical fiber wires, and the optical fiber wires are arranged in the buffer cavity; the outer surface of the conductive wire is respectively in tangent butt joint with the inner arc wall of the special-shaped cavity and the end part of the rib, and the inner arc wall of the special-shaped cavity and the rib fix the conductive wire, so that the conductive wire and the integral photoelectric mixed cable are coaxially arranged. The photoelectric mixed cable can effectively reduce the specific gravity of the photoelectric mixed cable, form a light photoelectric mixed cable and ensure that the photoelectric mixed cable has good mechanical properties.
Description
Technical Field
The invention belongs to the field of photoelectric hybrid cables, and particularly relates to a light photoelectric hybrid cable.
Background
The photoelectric hybrid cable is an integrated transmission medium which organically combines a metal wire and an optical fiber and transmits electric energy and optical information in the same way and the same direction.
The existing optical-electrical hybrid cable is usually prepared by simply combining and superposing the structures of the optical cable and the electrical cable, and usually by adopting a layer-stranding method. However, a series of new problems are derived from the manufactured photoelectric hybrid cable.
The mechanical property indexes of the optical cable and the cable are different, the indexes of the cable such as the compression resistance and the like are far higher than those of the optical cable, and the cable is not easy to damage after being compressed. The optical cable and the cable are simply combined and overlapped, mechanical properties such as compression resistance and the like are not necessarily improved, the optical cable and the cable are likely to be damaged more easily, cost is increased, and the like. For this reason, researchers in the field aim to reasonably balance and adjust the mechanical properties of the optical-electrical hybrid cable and to achieve the reduction of the specific gravity of the optical cable through structural improvement.
Disclosure of Invention
The invention provides a photoelectric hybrid cable, aiming at solving the problems that the mechanical properties of an optical cable structure and a cable structure in the conventional photoelectric hybrid cable are different greatly, the prior art cannot carry out effective balanced taking and rejecting, and the conventional photoelectric hybrid cable generally has the problems of high specific gravity, high transportation cost and the like.
The invention aims to:
firstly, the light weight of the photoelectric hybrid cable is realized;
secondly, the mechanical property of the photoelectric hybrid cable is balanced, so that the requirements of the internal optical cable structure and the cable structure on the mechanical property tend to be uniform;
thirdly, the photoelectric hybrid cable has excellent mechanical properties.
In order to achieve the purpose, the invention adopts the following technical scheme.
An optical-electrical hybrid cable comprising:
a sheath layer, an optical fiber line and a conductive line;
the sheath layer is internally provided with a special-shaped cavity which is rotationally symmetrical and used for arranging an optical fiber line and a conductive wire;
the special-shaped cavity is provided with a concave part close to the axis of the photoelectric mixed cable and convex parts far away from the axis, the concave part and the convex parts are alternately arranged, each convex part is provided with a plurality of ribs protruding inwards along the radial direction of the photoelectric mixed cable, and the ribs divide the convex parts;
the side wall of the special-shaped cavity of the concave part is an inner arc wall, the outer side wall of the divided convex part, which is outward along the radial direction of the photoelectric mixed cable, is an outer arc wall, the outer arc wall is tangent to a virtual circle, and the virtual circle is a concentric circle of the radial section of the photoelectric mixed cable;
the part with the ribs on both sides in the circumferential direction forms a buffer cavity which can be used for accommodating optical fiber wires, and the optical fiber wires are arranged in the buffer cavity;
the outer surface of the conductive wire is respectively in tangent butt joint with the inner arc wall of the special-shaped cavity and the end part of the rib, and the inner arc wall of the special-shaped cavity and the rib fix the conductive wire, so that the conductive wire and the integral photoelectric mixed cable are coaxially arranged.
As a matter of preference,
the special-shaped cavity is rotationally symmetrical at 180 degrees.
As a preference, the first and second liquid crystal compositions are,
and in the special-shaped cavity, a gap outside the buffer cavity is filled with a filler.
As a preference, the first and second liquid crystal compositions are,
the sheath layer is also provided with an elastic reinforcing piece;
and each inner arc wall of the special-shaped cavity is correspondingly provided with an elastic reinforcing piece.
As a preference, the first and second liquid crystal compositions are,
the elastic reinforcing piece is arc-shaped in the radial section direction and is parallel to the inner arc wall.
As a matter of preference,
the elastic reinforcing piece is made of elastic materials strengthened by glass beads.
As a matter of preference,
the raw materials for preparing the glass bead reinforced elastic material comprise glass beads, polyurethane and vermiculite powder.
As a preference, the first and second liquid crystal compositions are,
the vermiculite powder accounts for 5-15 wt% of the total mass of the polyurethane and the vermiculite powder.
As a matter of preference,
the glass beads are hollow borosilicate glass beads, the particle size of the hollow borosilicate glass beads is 220-350 mu m, and the wall thickness is 5-20 mu m.
As a preference, the first and second liquid crystal compositions are,
the elastic material is prepared by the following method:
adding vermiculite powder into polyurethane, mixing and granulating, then loosely packing and mixing the obtained particles and glass beads, and carrying out secondary mixing to obtain the glass bead reinforced elastic material.
The invention has the beneficial effects that:
1) the specific gravity of the photoelectric hybrid cable can be effectively reduced, and the light photoelectric hybrid cable is formed;
2) the optical cable structure is not easy to bear through guiding stress, and the optical cable structure is used as a main stressed part to realize mechanical property adjustment;
3) ensure that the photoelectric mixed cable has good mechanical property.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a force analysis of the present invention;
FIG. 3 is a schematic view of another force analysis of the present invention;
in the figure: 100 sheath layers, 101 special-shaped cavities, 101a inner arc wall, 101b outer arc wall, 101c ribs, 101d buffer cavities, 101e filling yarns, 101f virtual circles, 102 elastic reinforcements, 200 dampproof skins, 300 anti-aging layers, 400 optical fiber lines and 500 conducting wires.
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 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-electrical hybrid cable as shown in fig. 1 specifically includes:
the sheath layer 100, the dampproof leather 200 coated on the outer surface of the sheath layer 100, and the outermost anti-aging layer 300 coated outside the dampproof leather 200;
a rotationally symmetric special-shaped cavity 101 is arranged in the sheath layer 100, the special-shaped cavity 101 is used for arranging an optical fiber 400 and a conductive wire 500, and the special-shaped cavity 101 is rotationally symmetric by 180 degrees in the embodiment;
the special-shaped cavity 101 is provided with a concave part close to the axis of the photoelectric hybrid cable and a convex part far away from the axis, the special-shaped cavity 101 of the embodiment is in 180-degree rotational symmetry, so that mutually symmetrical concave parts and mutually symmetrical convex parts are formed, the concave parts and the convex parts are alternately arranged, each convex part is provided with a plurality of ribs 101c protruding inwards along the radial direction of the photoelectric hybrid cable, each convex part is provided with two ribs 101c, and the convex parts are divided by the arrangement of the ribs 101 c;
the side wall of the special-shaped cavity 101 of the concave part is an inner arc wall 101a, the outer side wall of the divided convex part, which is outward along the radial direction of the photoelectric hybrid cable, is an outer arc wall 101b, the outer arc wall 101b is tangent to a virtual circle 101f, and the virtual circle 101f is a concentric circle of the radial section of the photoelectric hybrid cable;
the part with the ribs 101c on both sides in the circumferential direction forms a buffer cavity 101d capable of accommodating the optical fiber 400, and the optical fiber 400 is arranged in the buffer cavity 101 d;
the outer surface of the conducting wire 500 is respectively in tangential contact with the end parts of the inner arc wall 101a and the rib 101c of the special-shaped cavity 101, and the inner arc wall 101a and the rib 101c of the special-shaped cavity 101 fix the conducting wire 500, so that the conducting wire 500 and the integral photoelectric hybrid cable are coaxially arranged;
in the special-shaped cavity 101, a gap outside the buffer cavity 101d is filled with a filler, which is a filling yarn 101e in the embodiment;
under the cooperation of above-mentioned structure, can realize actually using the cable as the structure center, nevertheless can set up optic fibre line 400 simultaneously to carry out the mixed cable structure of good fixed and protection to optic fibre line 400, receive external pressure effect time, can make conductor wire 500 as actual atress position through the mode of the transfer of power and conduction with external pressure, utilize good mechanical properties of conductor wire 500 own to form the resistance to compression.
Specifically, as shown in fig. 2 and 3, the force is analyzed in two typical directions.
Firstly, as shown in fig. 2, when the inner arc wall 101a of the hybrid cable is subjected to a force F1 in the direction, F1 is actually directly and inwardly transmitted to the inner arc wall 101a of the special-shaped cavity 101 along the sheath layer 100, as shown in fig. 2 as a force F2, at this time, under the action of the filling yarn 101e, the force is further transmitted to the rib 101c, due to the structural particularity of the rib 101c, the direction of the actually applied force is as shown in F3, the end of the rib 101c is laterally tilted under the action of the force F3, and actually, the buffer cavity 101d is not directly extruded in the direction of the force F1, so that the optical fiber line 400 is not directly subjected to the force, and the conductive line 500 tangential and abutted to the inner arc wall 101a is a directly subjected to the force.
As shown in fig. 3, when a force F4 is applied to the convex portion of the hybrid fiber optic cable, the force first acts on the optical fiber 400, but the buffer cavity 101d has a certain buffer space, so that the optical fiber 400 is not directly stressed, but generates a certain displacement along the radial direction of the hybrid fiber optic cable under the action of an external force, and drives the rib 101c to deform, a guiding force is formed along the F5 direction in the deformation process, the filling yarn 101e is conducted to act on the inner arc wall 101a, so that the inner arc wall 101a forms a compression along the F6 direction, and the conductive wire 500 is finally extruded, so that the conductive wire 500 is used as a final stressed object.
Further, in the above-mentioned case,
the sheath layer 100 is also provided with an elastic reinforcing member 102, the elastic reinforcing member 102 is arc-shaped in the radial section direction, each inner arc wall 101a of the special-shaped cavity 101 is correspondingly provided with one elastic reinforcing member 102, and the elastic reinforcing members 102 are parallel to the inner arc walls 101 a;
the arrangement of the elastic reinforcing member 102 can further improve the pressure resistance of the hybrid optical/electrical cable, and particularly when the hybrid optical/electrical cable is subjected to the force F4, the arrangement of the elastic reinforcing member 102 can further optimize the force guiding effect.
In a further aspect of the present invention,
the elastic reinforcing piece 102 is made of an elastic material reinforced by glass beads, and the raw materials of the elastic reinforcing piece comprise the glass beads, polyurethane and vermiculite powder;
the vermiculite powder accounts for 5-15 wt% of the total mass of the polyurethane and the vermiculite powder, in the embodiment, the vermiculite powder accounts for 10 wt% of the total mass of the polyurethane and the vermiculite powder, the particles with the particle size of 1-3 mm are obtained by mixing and granulating at 95 ℃ by the conventional process, and then the particles obtained by mixing and granulating are loosely mixed with the glass beads, wherein the loose volume ratio of the glass beads to the particles is 5-8: 100, mixing the two materials uniformly, and then carrying out secondary mixing, wherein the mixing temperature is controlled to be 68 ℃, and the fluidity of polyurethane needs to be controlled during the secondary mixing, so that the elastic material mixed with the glass bead reinforced particles is obtained after mixing due to the strict control of the mixing temperature to be 67-70 ℃;
the selected glass beads are hollow borosilicate glass beads, the particle size of the hollow borosilicate glass beads is 220-350 mu m, the wall thickness is 5-20 mu m, and the particle size of the glass beads selected in the embodiment is 280 mu m, and the wall thickness is 15 mu m.
Compared with the existing polyurethane elastic material, the glass bead reinforced elastic material prepared by the method has more excellent elastic modulus and compression-resistant buffering performance, and compared with the existing polyurethane elastic material, the compression resistance of the photoelectric mixed cable can be improved by about 8-11%.
In addition, in the process, the hollow borosilicate glass beads are mixed and added after the vermiculite powder and the polyurethane are mixed and granulated, and are directly added in the first mixing and granulating process, so that the uniformity of the components of the hollow borosilicate glass beads and the polyurethane is poor due to the preparation of the elastic material formed once, compared with the existing polyurethane elastic material, the improvement on the compression resistance of the photoelectric mixed cable is not obvious, even a certain hardening reduction is generated, and the compression resistance of the photoelectric mixed cable can be improved by about-4-2% when the elastic material prepared by mixing once through experiments is used for the photoelectric mixed cable.
Claims (10)
1. An optical-electrical hybrid cable, comprising:
a sheath layer, an optical fiber line and a conductive line;
the sheath layer is internally provided with a rotationally symmetrical special-shaped cavity for arranging an optical fiber line and a conducting wire;
the special-shaped cavity is provided with a concave part close to the axis of the photoelectric mixed cable and convex parts far away from the axis, the concave part and the convex parts are alternately arranged, each convex part is provided with a plurality of ribs protruding inwards along the radial direction of the photoelectric mixed cable, and the ribs divide the convex parts;
the side wall of the special-shaped cavity of the concave part is an inner arc wall, the outer side wall of the divided convex part, which is outward along the radial direction of the photoelectric mixed cable, is an outer arc wall, the outer arc wall is tangent to a virtual circle, and the virtual circle is a concentric circle of the radial section of the photoelectric mixed cable;
the part with the ribs on both sides in the circumferential direction forms a buffer cavity which can be used for accommodating optical fiber wires, and the optical fiber wires are arranged in the buffer cavity;
the outer surface of the conductive wire is respectively in tangent butt joint with the inner arc wall of the special-shaped cavity and the end part of the rib, and the inner arc wall of the special-shaped cavity and the rib fix the conductive wire, so that the conductive wire is coaxial with the whole photoelectric mixed cable.
2. The hybrid optical/electrical cable according to claim 1,
the special-shaped cavity is rotationally symmetrical at 180 degrees.
3. The hybrid optical/electrical cable according to claim 1,
and in the special-shaped cavity, a gap outside the buffer cavity is filled with a filler.
4. The hybrid optical/electrical cable according to claim 1,
an elastic reinforcing piece is further arranged in the sheath layer;
and each inner arc wall of the special-shaped cavity is correspondingly provided with an elastic reinforcing piece.
5. The hybrid optical/electrical cable according to claim 4,
the elastic reinforcing piece is arc-shaped in the radial section direction and is parallel to the inner arc wall.
6. The optical-electrical hybrid cable according to claim 4 or 5,
the elastic reinforcing piece is made of elastic materials strengthened by glass beads.
7. The hybrid optical/electrical cable according to claim 6,
the raw materials for preparing the glass bead reinforced elastic material comprise glass beads, polyurethane and vermiculite powder.
8. The hybrid optical/electrical cable according to claim 7,
the vermiculite powder accounts for 5-15 wt% of the total mass of the polyurethane and the vermiculite powder.
9. The hybrid optical/electrical cable according to claim 7,
the glass beads are hollow borosilicate glass beads, the particle size of the hollow borosilicate glass beads is 220-350 mu m, and the wall thickness is 5-20 mu m.
10. The hybrid optical/electrical cable according to claim 7,
the elastic material is prepared by the following method:
adding vermiculite powder into polyurethane, mixing and granulating, mixing the obtained granules with glass beads, and mixing for the second time to obtain the glass bead reinforced elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728524.2A CN113380455B (en) | 2021-06-29 | 2021-06-29 | Photoelectric hybrid cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728524.2A CN113380455B (en) | 2021-06-29 | 2021-06-29 | Photoelectric hybrid cable |
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| CN113380455A CN113380455A (en) | 2021-09-10 |
| CN113380455B true CN113380455B (en) | 2022-08-23 |
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| CN202110728524.2A Active CN113380455B (en) | 2021-06-29 | 2021-06-29 | Photoelectric hybrid cable |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114512269B (en) * | 2022-01-14 | 2023-12-08 | 杭州富通通信技术股份有限公司 | Photoelectric hybrid cable for 5G |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516836A (en) * | 1982-09-20 | 1985-05-14 | Crystaloid Electronics Company | Conductor for use in electro-optical displays |
| JP2000357577A (en) * | 1999-06-14 | 2000-12-26 | Sumitomo Wiring Syst Ltd | Terminal insertion device |
| CN101458978A (en) * | 2007-12-13 | 2009-06-17 | 上海波汇通信科技有限公司 | High voltage electric cable for composite optical fiber |
| CN101807455A (en) * | 2010-03-29 | 2010-08-18 | 浙江省电力公司舟山电力局 | Photoelectric combined submarine power cable |
| CN109143509A (en) * | 2016-04-14 | 2019-01-04 | 杭州富通通信技术股份有限公司 | Fiber optic cable manufacture technique |
-
2021
- 2021-06-29 CN CN202110728524.2A patent/CN113380455B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516836A (en) * | 1982-09-20 | 1985-05-14 | Crystaloid Electronics Company | Conductor for use in electro-optical displays |
| JP2000357577A (en) * | 1999-06-14 | 2000-12-26 | Sumitomo Wiring Syst Ltd | Terminal insertion device |
| CN101458978A (en) * | 2007-12-13 | 2009-06-17 | 上海波汇通信科技有限公司 | High voltage electric cable for composite optical fiber |
| CN101807455A (en) * | 2010-03-29 | 2010-08-18 | 浙江省电力公司舟山电力局 | Photoelectric combined submarine power cable |
| CN109143509A (en) * | 2016-04-14 | 2019-01-04 | 杭州富通通信技术股份有限公司 | Fiber optic cable manufacture technique |
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