CN116577891A - Optical fiber ribbon cable and power cable with at least two loose tubes - Google Patents
Optical fiber ribbon cable and power cable with at least two loose tubes Download PDFInfo
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- CN116577891A CN116577891A CN202310853794.5A CN202310853794A CN116577891A CN 116577891 A CN116577891 A CN 116577891A CN 202310853794 A CN202310853794 A CN 202310853794A CN 116577891 A CN116577891 A CN 116577891A
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- 239000011241 protective layer Substances 0.000 claims abstract description 26
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- 230000001154 acute effect Effects 0.000 claims description 92
- 239000004020 conductor Substances 0.000 claims description 19
- 238000005253 cladding Methods 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
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- 229910045601 alloy Inorganic materials 0.000 description 4
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- 229910000831 Steel Inorganic materials 0.000 description 2
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- 239000010949 copper Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
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Classifications
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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
- G02B6/4403—Optical cables with ribbon structure
- G02B6/4404—Multi-podded
-
- 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
- G02B6/441—Optical cables built up from sub-bundles
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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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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The application belongs to the field of optical cables, and discloses an optical fiber ribbon optical cable with at least two loose tubes, which is provided with a cable core (1) and a protective layer (4), and is characterized in that: the cable core is formed by combining n first-type loose tubes (2) and n second-type loose tubes (3); the cross sections of the first loose tubes and the second loose tubes are right triangles, the length of the first right-angle side (22) is equal to that of the third right-angle side (32), and the sum of the length of the second right-angle side (23) and the length of the fourth right-angle side (33) is equal to that of the first bevel edge (24); the cross section of the cable core is a positive n-shaped, vertexes of all the second right-angle sides (23) intersecting with the first oblique sides (24) are positioned at the center of the cable core, n is more than or equal to 5, and n is a positive integer. The application also discloses a cable. The application has the following main beneficial technical effects: simple structure, easy manufacture, more convenient construction and maintenance, higher density of fiber cores, smaller size, lighter weight and lower cost.
Description
Technical Field
The application belongs to the field of optical cables, and particularly discloses an optical fiber ribbon optical cable with at least two loose tubes and a power cable.
Background
With the rapid development of the communication industry, the application of communication optical cables with large core number and high core density is increasing. In the prior art, high core count, high core density communication cables are typically ribbon cables, or ribbon cables. In the prior art, the optical fiber ribbon cable mainly comprises a layer twisting type, a central beam type and a skeleton type, wherein a plurality of optical fiber ribbons are put into circular loose tubes, the loose tubes are twisted around a central reinforcing piece on an SZ cable-former to form a cable core, the required SZ cable-former is complex in equipment, expensive, large in occupied area, large in power consumption and large in noise during working, and because the pay-off frames are only 12 in number, the equipment is more complex and the existing control system is not matched. The central tube type optical cable simply places the optical fiber ribbon in the inner cavity of the central tube, and the number of fiber cores cannot be made to be large. The skeleton type optical cable is characterized in that the optical fiber ribbon is placed in a skeleton groove, the optical fiber ribbon is easy to take and place, but the skeleton type optical cable is suitable for optical fiber ribbons with small core numbers, such as 4-fiber ribbon and 6-fiber ribbon, the size of a skeleton required by the optical fiber ribbon with large core numbers is large, and huge waste of skeleton space is caused, so that the fiber core density of the skeleton type optical cable needs to be improved.
CN204832617U discloses a reinforced optical cable, comprising a hexagonal inner core composed of 6 triangular optical fiber strips, wherein the triangular optical fiber strips comprise injection molding materials, optical fibers wrapped in the injection molding materials and reinforcing fibers; the hexagonal inner core is wrapped in a loose tube, and reinforced glass fibers are arranged between the hexagonal inner core and the loose tube; the loose tube is also provided with a protective layer. The triangular optical fiber strip is adopted to replace the original prepuce-free optical fiber, and reinforcing fibers are mixed in the optical fiber strip, so that the optical fiber strip is not easy to break. The triangular light bars are combined into a hexagon, so that the mechanical strength is greatly improved. However, the triangular optical fiber strip can only form a hexagonal inner core and a parallelogram inner core, so that the triangular optical fiber strip is not flexible to use, cannot form an optical cable with a larger core number, and is inconvenient to store.
Disclosure of Invention
In order to solve the above problems, the present application aims to disclose an optical fiber ribbon cable and a power cable having at least two loose tubes, which are realized by adopting the following technical solutions.
An optical fiber ribbon optical cable with at least two loose tubes, has the cable core, cladding at least one deck protective layer outside the cable core, its characterized in that: the cable core is formed by combining n first-type loose tubes and n second-type loose tubes; the cross section of the first loose tube is a right triangle, and three sides of the first loose tube are respectively: the first right-angle side, the second right-angle side and the first oblique side form a second acute angle, the second right-angle side and the first oblique side form a first acute angle, a hollow first inner cavity is formed in the first loose tube, a first optical fiber ribbon is arranged in the first inner cavity, the first acute angle=360/n degrees, and the second acute angle=90-360/n degrees; the cross section of the second type loose tube is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side, the fourth right-angle side and the second bevel side are provided with a third acute angle, the fourth acute angle is provided with a fourth acute angle, the second loose tube is internally provided with a hollow second inner cavity, the second inner cavity is internally provided with a second optical fiber ribbon, the third acute angle = 180/n degrees, and the fourth acute angle = 90-180/n degrees; the length of the first right-angle side is equal to that of the third right-angle side, and the sum of the length of the second right-angle side and the length of the fourth right-angle side is equal to that of the first bevel side; the cross section of the cable core 1 is in a positive n-shaped, all vertexes of the second right-angle sides intersecting with the first bevel edge are positioned at the center of the cable core, n is more than or equal to 5, and n is a positive integer.
An optical fiber ribbon optical cable with at least two loose tubes, has the cable core, cladding at least one deck protective layer outside the cable core, its characterized in that: the cable core is formed by combining X first-class loose tubes; the cross section of the first loose tube is a right triangle, and three sides of the first loose tube are respectively: the first right-angle side, the second right-angle side and the first oblique side form a second acute angle, the second right-angle side and the first oblique side form a first acute angle, a hollow first inner cavity is formed in the first loose tube, a first optical fiber ribbon is arranged in the first inner cavity, the first acute angle=360/n degrees, and the second acute angle=90-360/n degrees; all the first type loose tubes form a 360-degree cable core, in the clockwise direction of the cable core, in the adjacent first type loose tubes, the first right-angle side of the current first type loose tube is clung to the first oblique side of the previous first type loose tube, the vertexes of all the first right-angle sides intersecting with the first oblique side are positioned at the center of the cable core, n is more than or equal to 5, n is a positive integer, and X and n accord with the following relation: when n=5, x=20; when n=6, x=12; when n=8, x=8; when n=12, x=6; when n=20, x=5.
An optical fiber ribbon optical cable with at least two loose tubes, has the cable core, cladding at least one deck protective layer outside the cable core, its characterized in that: the cable core is formed by combining Y second-type loose tubes; the cross section of the second type loose tube is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side, the fourth right-angle side and the second bevel side are provided with a third acute angle, the fourth acute angle is provided with a fourth acute angle, the second loose tube is internally provided with a hollow second inner cavity, the second inner cavity is internally provided with a second optical fiber ribbon, the third acute angle = 180/n degrees, and the fourth acute angle = 90-180/n degrees; all the second type loose tubes form a 360-degree cable core, in the clockwise direction of the cable core, in the adjacent second type loose tubes, the third right-angle side of the current second type loose tube is clung to the second oblique side of the previous second type loose tube, the vertexes of all the third right-angle sides intersecting with the second oblique side are positioned at the center of the cable core, n is more than or equal to 5, n is a positive integer, and Y and n accord with the following relation: when n=5, y=10; when n=6, y=12; when n=8, y=16; when n=12, y=24; when n=20, y=40; when n=30, y=60; when n=36, y=72; when n=45, y=90; when n=60, y=120; when n=90, y=180.
A power cable with at least two loose tubes, having a cable core, at least one protective layer coating the cable core, characterized in that: the cable core is formed by combining n first-type loose tubes and n second-type loose tubes; the cross section of the first loose tube is a right triangle, and three sides of the first loose tube are respectively: the first right-angle side, the second right-angle side and the first oblique side form a second acute angle, the second right-angle side and the first oblique side form a first acute angle, a hollow first inner cavity is formed in the first loose tube, a first electric conductor is arranged in the first inner cavity, the first acute angle=360/n degrees, and the second acute angle=90-360/n degrees; the cross section of the second type loose tube is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side, the fourth right-angle side and the second bevel side are provided with a third acute angle, the fourth acute angle is provided with a fourth acute angle, the second loose tube is internally provided with a hollow second inner cavity, the second inner cavity is internally provided with a second electric conductor, the third acute angle = 180/n degrees, and the fourth acute angle = 90-180/n degrees; the length of the first right-angle side is equal to that of the third right-angle side, and the sum of the length of the second right-angle side and the length of the fourth right-angle side is equal to that of the first bevel side; the cross section of the cable core 1 is in a positive n-shaped, all vertexes of the second right-angle sides intersecting with the first bevel edge are positioned at the center of the cable core, n is more than or equal to 5, and n is a positive integer.
A power cable with at least two loose tubes, having a cable core, at least one protective layer coating the cable core, characterized in that: the cable core is formed by combining X first-class loose tubes; the cross section of the first loose tube is a right triangle, and three sides of the first loose tube are respectively: the first right-angle side, the second right-angle side and the first oblique side form a second acute angle, the second right-angle side and the first oblique side form a first acute angle, a hollow first inner cavity is formed in the first loose tube, a first electric conductor is arranged in the first inner cavity, the first acute angle=360/n degrees, and the second acute angle=90-360/n degrees; all the first type loose tubes form a 360-degree cable core, in the clockwise direction of the cable core, in the adjacent first type loose tubes, the first right-angle side of the current first type loose tube is clung to the first oblique side of the previous first type loose tube, the vertexes of all the first right-angle sides intersecting with the first oblique side are positioned at the center of the cable core, n is more than or equal to 5, n is a positive integer, and X and n accord with the following relation: when n=5, x=20; when n=6, x=12; when n=8, x=8; when n=12, x=6; when n=20, x=5.
A power cable with at least two loose tubes, having a cable core, at least one protective layer coating the cable core, characterized in that: the cable core is formed by combining Y second-type loose tubes; the cross section of the second type loose tube is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side, the fourth right-angle side and the second bevel side are provided with a third acute angle, the fourth acute angle is provided with a fourth acute angle, the second loose tube is internally provided with a hollow second inner cavity, the second inner cavity is internally provided with a second electric conductor, the third acute angle = 180/n degrees, and the fourth acute angle = 90-180/n degrees; all the second type loose tubes form a 360-degree cable core, in the clockwise direction of the cable core, in the adjacent second type loose tubes, the third right-angle side of the current second type loose tube is clung to the second oblique side of the previous second type loose tube, the vertexes of all the third right-angle sides intersecting with the second oblique side are positioned at the center of the cable core, n is more than or equal to 5, n is a positive integer, and Y and n accord with the following relation: when n=5, y=10; when n=6, y=12; when n=8, y=16; when n=12, y=24; when n=20, y=40; when n=30, y=60; when n=36, y=72; when n=45, y=90; when n=60, y=120; when n=90, y=180.
The application has the following main beneficial technical effects: simple structure, easy manufacture, more convenient construction and maintenance, higher density of fiber cores, smaller size, lighter weight and lower cost.
Drawings
Fig. 1 is a schematic cross-sectional structure of embodiment example 1.
Fig. 2 is a schematic cross-sectional structure of a loose tube of the first type used in embodiment example 1.
Fig. 3 is a schematic cross-sectional structure of a loose tube of the second type used in embodiment example 1.
Fig. 4 is a schematic cross-sectional structure of the cable core of embodiment example 2.
Fig. 5 is a schematic cross-sectional structure of the cable core of embodiment example 3.
Fig. 6 is a schematic cross-sectional structure of the cable core of embodiment example 4.
Fig. 7 is a schematic cross-sectional structure of the cable core of embodiment example 5.
So that those skilled in the art can better understand and practice the present patent, reference will now be made in detail to the drawings, which are illustrated in the accompanying drawings.
In the figure: 1-cable core, 2-first type loose tube, 3-second type loose tube, 4-protective layer, 20-first inner cavity, 21-first optical fiber ribbon, 22-first right-angle side, 23-second right-angle side, 24-first oblique side, theta-first acute angle, delta-second acute angle, 30-second inner cavity, 31-second optical fiber ribbon, 32-third right-angle side, 33-fourth right-angle side, 34-second oblique side, phi-third acute angle, beta-fourth acute angle.
Detailed Description
Implementation example 1: please refer to fig. 1 to 3, a fiber optic ribbon cable with at least two loose tubes, which has a cable core 1, and at least one protective layer 4 covering the cable core 1, and is characterized in that: the cable core 1 is formed by combining n first-type loose tubes 2 and n second-type loose tubes 3; the cross section of the first type loose tube 2 is a right triangle, and three sides of the first type loose tube are respectively: the first right-angle side 22, the second right-angle side 23 and the first inclined side 24, wherein the included angle between the first right-angle side 22 and the first inclined side 24 is a second acute angle delta, the included angle between the second right-angle side 23 and the first inclined side 24 is a first acute angle theta, the inside of the first loose tube 2 is provided with a hollow first inner cavity 20, the first inner cavity 20 is internally provided with a first optical fiber ribbon 21, theta = 360/n degrees, and delta = 90-360/n degrees; the cross section of the second type loose tube 3 is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side 32, the fourth right-angle side 33 and the second oblique side 34, the included angle between the third right-angle side 32 and the second oblique side 34 is a third acute angle phi, the included angle between the fourth right-angle side 33 and the second oblique side 34 is a fourth acute angle beta, the second loose tube 3 is internally provided with a hollow second inner cavity 30, the second inner cavity 30 is internally provided with a second optical fiber ribbon 31, phi=180/n degrees, and beta=90-180/n degrees; the length of the first right-angle side 22 is equal to the length of the third right-angle side 32, and the sum of the length of the second right-angle side 23 and the length of the fourth right-angle side 33 is equal to the length of the first oblique side 24; the cross section of the cable core 1 is in a positive n-square shape, all vertexes of the second right-angle sides 23 intersecting with the first oblique sides 24 are positioned in the center of the cable core 1, n is more than or equal to 5, and n is a positive integer.
Implementation example 2: please refer to fig. 4, and refer to fig. 1 to 3, an optical fiber ribbon cable having at least two loose tubes, which has a cable core 1, and at least one protective layer covering the cable core 1, and is characterized in that: the cable core 1 is formed by combining X first-class loose tubes 2; the cross section of the first type loose tube 2 is a right triangle, and three sides of the first type loose tube are respectively: the first right-angle side 22, the second right-angle side 23 and the first inclined side 24, wherein the included angle between the first right-angle side 22 and the first inclined side 24 is a second acute angle delta, the included angle between the second right-angle side 23 and the first inclined side 24 is a first acute angle theta, the inside of the first loose tube 2 is provided with a hollow first inner cavity 20, the first inner cavity 20 is internally provided with a first optical fiber ribbon 21, theta = 360/n degrees, and delta = 90-360/n degrees; all the first type loose tubes 2 form a cable core 1 with 360 degrees, in the clockwise direction of the cable core 1, in the adjacent first type loose tubes 2, the first right-angle side 22 of the current first type loose tube 2 is clung to the first inclined side 24 of the previous first type loose tube 2, the vertexes of all the first right-angle sides 22 intersected with the first inclined side 24 are positioned at the center of the cable core 1, n is more than or equal to 5, n is a positive integer, and X and n accord with the following relation: when n=5, x=20; when n=6, x=12; when n=8, x=8; when n=12, x=6; when n=20, x=5.
In practice, X and n may take other values, and when X is sufficiently large, the outer edge of the cable core 1 is very close to a circle.
Implementation example 3: please refer to fig. 5, and refer to fig. 1 to 3, an optical fiber ribbon cable having at least two loose tubes, which has a cable core 1, and at least one protective layer covering the cable core 1, and is characterized in that: the cable core 1 is formed by combining Y second-type loose tubes 3; the cross section of the second type loose tube 3 is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side 32, the fourth right-angle side 33 and the second oblique side 34, the included angle between the third right-angle side 32 and the second oblique side 34 is a third acute angle phi, the included angle between the fourth right-angle side 33 and the second oblique side 34 is a fourth acute angle beta, the second loose tube 3 is internally provided with a hollow second inner cavity 30, the second inner cavity 30 is internally provided with a second optical fiber ribbon 31, phi=180/n degrees, and beta=90-180/n degrees; all the second type loose tubes 3 form a cable core 1 with 360 degrees, in the clockwise direction of the cable core 1, in the adjacent second type loose tubes 3, the third right-angle edges 32 of the current second type loose tube 3 are clung to the second oblique edges 34 of the previous second type loose tube 3, the vertexes of all the third right-angle edges 32 intersected with the second oblique edges 34 are positioned at the center of the cable core 1, n is more than or equal to 5, n is a positive integer, and Y and n accord with the following relation: when n=5, y=10; when n=6, y=12; when n=8, y=16; when n=12, y=24; when n=20, y=40; when n=30, y=60; when n=36, y=72; when n=45, y=90; when n=60, y=120; when n=90, y=180.
In practice, Y and n may take other values, and when Y is sufficiently large, the outer edge of the cable core 1 is very close to a circle.
Implementation example 4: please refer to fig. 6, and refer to fig. 1 to 3, an optical fiber ribbon cable having at least two loose tubes, which has a cable core 1, and at least one protective layer covering the cable core 1, and is characterized in that: the cable core 1 is formed by combining Y second-type loose tubes 3; the cross section of the second type loose tube 3 is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side 32, the fourth right-angle side 33 and the second oblique side 34, the included angle between the third right-angle side 32 and the second oblique side 34 is a third acute angle phi, the included angle between the fourth right-angle side 33 and the second oblique side 34 is a fourth acute angle beta, the second loose tube 3 is internally provided with a hollow second inner cavity 30, the second inner cavity 30 is internally provided with a second optical fiber ribbon 31, phi=180/n degrees, and beta=90-180/n degrees; all loose tubes 3 of the second type form a cable core 1 with a rectangular cross section, and two of the cable cores 1 are combined into a group of combined units, wherein: the second bevel edge 34 of the first second type loose tube 3 is clung to the second bevel edge 34 of the second type loose tube 3, the third right-angle edges 32 of the two second type loose tubes 3 are parallel, the fourth right-angle edges 33 of the two second type loose tubes 3 are parallel, and the cross section of a combined unit formed by combining the first second type loose tube 3 and the second type loose tube 3 is rectangular; adjacent combination units: the third right-angle edges 32 of the adjacent loose tubes 3 of the second type are closely attached, and the cross section formed by the combination of adjacent combined units is rectangular; n is more than or equal to 5, n is a positive integer, and Y is a positive even number; y and n correspond to the following relationship: when n=5, Y is greater than or equal to 4; when n=6, Y is not less than 4; when n=8, Y is not less than 4; when n=12, Y is greater than or equal to 4; when n=20, Y is greater than or equal to 4; when n=30, Y is not less than 4; when n=36, Y is greater than or equal to 4; when n=45, Y is greater than or equal to 4; when n=60, Y is more than or equal to 4; when n=90, Y is not less than 4.
Implementation example 5: please refer to fig. 7, and refer to fig. 1 to 3, an optical fiber ribbon cable having at least two loose tubes, which has a cable core 1, and at least one protective layer covering the cable core 1, and is characterized in that: the cable core 1 is formed by combining X first-class loose tubes 2; the cross section of the first type loose tube 2 is a right triangle, and three sides of the first type loose tube are respectively: the first right-angle side 22, the second right-angle side 23 and the first inclined side 24, wherein the included angle between the first right-angle side 22 and the first inclined side 24 is a second acute angle delta, the included angle between the second right-angle side 23 and the first inclined side 24 is a first acute angle theta, the inside of the first loose tube 2 is provided with a hollow first inner cavity 20, the first inner cavity 20 is internally provided with a first optical fiber ribbon 21, theta = 360/n degrees, and delta = 90-360/n degrees; all the loose tubes 2 of the first type form a cable core 1 with a rectangular cross section, and two of the cable cores 1 are combined into a group of combined units, wherein: the first bevel edge 24 of the first type loose tube 2 is clung to the first bevel edge 24 of the second type loose tube 2, the first right-angle edges 22 of the two first type loose tubes 2 are parallel, the second right-angle edges 23 of the two first type loose tubes 2 are parallel, and the cross section of a combined unit formed by combining the first type loose tube 2 and the second first type loose tube 2 is rectangular; adjacent combination units: the first right-angle edges 22 of the adjacent first loose tubes 2 are closely attached, and the cross section formed by the combination of the adjacent combined units is rectangular; n is more than or equal to 5, n is a positive integer, and X is a positive even number; x and n correspond to the following relationship: when n=5, X is more than or equal to 4; when n=6, X is more than or equal to 4; when n=8, X is not less than 4; when n=12, X is not less than 4; when n=20, X is not less than 4.
In practical examples 4 and 5, the Y, X may be only 2, and is not limited to the case shown in the drawings, for example, the right-most loose tube 3 in fig. 6 may be split into a parallelogram in cross section, and translated to the left; in fig. 7, the rightmost loose tube 2 of the first type can also be translated to the left; the present application is not limited to the above-described case, and any case conceivable under the teaching of the present application should be regarded as being within the scope of the present application.
In any of the above embodiments, the optical fiber ribbon may be replaced by an electrical conductor, either partially or fully, thereby forming a power cable having at least two loose tubes; the optical fiber ribbon refers to the first optical fiber ribbon 21 or the second optical fiber ribbon 31, when the electric conductor replaces the first optical fiber ribbon 21, the electric conductor is matched with the shape of the first inner cavity 20, and when the electric conductor replaces the second optical fiber ribbon 31, the electric conductor is matched with the shape of the second inner cavity 30; the electrical conductors within the first lumen 20 may be referred to as first electrical conductors and the electrical conductors within the second lumen 30 may be referred to as second electrical conductors.
The first electric conductor is made of copper or aluminum or alloy, and the second electric conductor is made of copper or aluminum or alloy.
The first right-angle side 22, the second right-angle side 23 and the first oblique side 24 may have a certain width in practice.
The third right-angle side 32, the fourth right-angle side 33, and the second oblique side 34 may all have a certain width in practice in the present application.
In the present application, the first loose tube 2 is integrally formed, i.e., is of a unitary structure, except for the inner first fiber optic ribbon 21, and the material is preferably plastic, but may be other materials such as steel, aluminum, alloy, etc., so as to have higher compression resistance and strength.
In the present application, the second loose tube 3 is integrally formed, i.e., is of a unitary structure, except for the second optical fiber ribbon 31, which is preferably plastic, but may be other materials, such as steel, aluminum, alloy, etc., so as to be more resistant to compression and have higher strength.
In the present application, the first optical fiber ribbon 21 is composed of a plurality of optical fibers and an adhesive layer covering all the optical fibers.
In the present application, the second optical fiber ribbon 31 is composed of a plurality of optical fibers and an adhesive layer covering all the optical fibers.
In the present application, the type of optical fiber described above is single mode or multimode.
In the present application, the material of the adhesive layer is plastic, and preferably polyacrylic resin.
In the present application, when the protective layer 4 is a layer, it may be plastic; in the case of multiple layers, the outer part is plastic, and the inner part is a protective layer with various functions, such as termite protection, rat protection, water protection, fire protection, pressure protection, impact protection and the like.
In the application, the first type loose tubes 2 and the second type loose tubes 3 can be formed by extrusion molding, in addition, during production, two first type loose tubes 2 can be produced simultaneously, the bevel edges of the two first type loose tubes 2 are opposite, and after extrusion molding and pulling out are carried out together, the two first type loose tubes 2 form rectangular cross sections, so that the two first type loose tubes 2 are coiled together.
In the present application, the second type loose tube 3 may be produced and coiled in the same manner as the first type loose tube 2, except for the mold.
In the embodiments 4, 5 of the present application, the first type loose tube 2 or the second type loose tube 3 may be paid out in pairs, so that the corresponding cores are formed in a plurality of pairs.
In the application, the two first-type loose tubes 2 can form a cuboid structure, so that the stacking is more convenient and tidier, and the two second-type loose tubes 3 can also form a cuboid structure, so that the stacking is more convenient and tidier.
Compared with the prior art, the application can form rectangular, parallelogram and approximate round cable cores due to the existence of the first loose tube 2, so that rectangular, parallelogram and approximate round products can be correspondingly formed, and the application can be suitable for different laying spaces, such as pipelines with different sections, and the like; similarly, the second loose tube 3 is similar.
In the application, due to the existence of the first type loose tubes 2 and the second type loose tubes 3, the first optical fiber ribbon and the second optical fiber ribbon are effectively segmented and are suitable for different occasions, in the prior art, when in construction, triangular optical fiber strips are required to be stripped, so that the internal optical fibers are taken out, after the triangular optical fiber strips are stripped, the actual recovery of the triangular optical fiber strips is difficult, and when in actual use, the optical fibers in the triangular optical fiber strips are not required to be used, but in the application, the construction can be completed by only cutting the corresponding first type loose tubes 2 or the second type loose tubes 3, the unnecessary loose tubes are not cut, the loose tubes are effectively protected, and the method is more suitable for different occasions, such as a building, only 8 building units are required to be put into the building, and each user can put into the optical fiber only by taking out one first type loose tube 2 for stripping; there is no need to peel off the other loose tubes of the first type 2 and the second type 3.
In the application, as the effective division is realized, a plurality of first-type loose tubes 2 and second-type loose tubes 3 are formed, as in the embodiment examples 2 to 4, the first-type loose tubes 2 or the second-type loose tubes 3 in the cable core in each embodiment example can be broken through 12 easily, the production of the first-type loose tubes or the second-type loose tubes 3 does not need SZ twisting equipment and only needs to be carried out on a sheath extruder, the first-type loose tubes 2 or the second-type loose tubes 3 pass through the holes of the mould through the mould, namely the initial cable core is formed, the protective layer is extruded and coated outside, and compared with the central beam tube type optical cable, the core density of the optical fiber is greatly increased and the separation of a small amount of optical fiber cores can be realized; compared with skeleton type optical cable, the skeleton is omitted, and the skeleton can be expanded in large core number, so that the core density of the optical fiber is effectively enlarged, the diameter of the product is reduced, the material consumption of a protective layer and the like is reduced, the outer diameter or the peripheral size of the product is smaller, the weight is lighter, the cost is lower, and the construction and maintenance are more convenient.
The application has the following main beneficial technical effects: simple structure, easy manufacture, more convenient construction and maintenance, higher density of fiber cores, smaller size, lighter weight and lower cost.
The above-described embodiments are only preferred embodiments of the present application, and should not be construed as limiting the present application. The protection scope of the present application is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this application are also within the scope of the application.
Claims (10)
1. An optical fiber ribbon optical cable with at least two loose tubes is provided with a cable core (1) and at least one protective layer (4) coated outside the cable core (1), and is characterized in that: the cable core (1) is formed by combining n first-type loose tubes (2) and n second-type loose tubes (3); the cross section of the first loose tube (2) is a right triangle, and three sides of the first loose tube are respectively: the optical fiber cable comprises a first right-angle side (22), a second right-angle side (23) and a first oblique side (24), wherein an included angle between the first right-angle side (22) and the first oblique side (24) is a second acute angle, an included angle between the second right-angle side (23) and the first oblique side (24) is a first acute angle, a hollow first inner cavity (20) is formed in the first loose tube (2), a first optical fiber ribbon (21) is arranged in the first inner cavity (20), the first acute angle is=360/n degrees, and the second acute angle is=90-360/n degrees; the cross section of the second type loose tube (3) is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side (32), the fourth right-angle side (33) and the second bevel side (34), wherein an included angle between the third right-angle side (32) and the second bevel side (34) is a third acute angle, an included angle between the fourth right-angle side (33) and the second bevel side (34) is a fourth acute angle, a hollow second inner cavity (30) is formed in the second loose tube (3), a second optical fiber ribbon (31) is arranged in the second inner cavity (30), the third acute angle=180/n degrees, and the fourth acute angle=90 degrees-180/n degrees; the length of the first right-angle side (22) is equal to the length of the third right-angle side (32), and the sum of the length of the second right-angle side (23) and the length of the fourth right-angle side (33) is equal to the length of the first bevel (24); the cross section of the cable core (1) is in a positive n-side shape, vertexes of all second right-angle sides (23) intersecting with the first oblique sides (24) are positioned at the center of the cable core (1), n is more than or equal to 5, and n is a positive integer.
2. An optical fiber ribbon optical cable with at least two loose tubes is provided with a cable core (1) and at least one protective layer coated outside the cable core (1), and is characterized in that: the cable core (1) is formed by combining X first loose tubes (2); the cross section of the first loose tube (2) is a right triangle, and three sides of the first loose tube are respectively: the optical fiber cable comprises a first right-angle side (22), a second right-angle side (23) and a first oblique side (24), wherein an included angle between the first right-angle side (22) and the first oblique side (24) is a second acute angle, an included angle between the second right-angle side (23) and the first oblique side (24) is a first acute angle, a hollow first inner cavity (20) is formed in the first loose tube (2), a first optical fiber ribbon (21) is arranged in the first inner cavity (20), the first acute angle is=360/n degrees, and the second acute angle is=90-360/n degrees; all first-class loose tubes (2) form a 360-degree cable core (1), in the clockwise direction of the cable core (1), in the adjacent first-class loose tubes (2), the first right-angle edges (22) of the current first-class loose tubes (2) are clung to the first oblique edges (24) of the previous first-class loose tubes (2), vertexes of all first right-angle edges (22) intersecting with the first oblique edges (24) are positioned at the center of the cable core (1), n is more than or equal to 5, n is a positive integer, and X and n accord with the following relation: when n=5, x=20; when n=6, x=12; when n=8, x=8; when n=12, x=6; when n=20, x=5.
3. An optical fiber ribbon optical cable with at least two loose tubes is provided with a cable core (1) and at least one protective layer coated outside the cable core (1), and is characterized in that: the cable core (1) is formed by combining X first loose tubes (2); the cross section of the first loose tube (2) is a right triangle, and three sides of the first loose tube are respectively: the optical fiber cable comprises a first right-angle side (22), a second right-angle side (23) and a first oblique side (24), wherein an included angle between the first right-angle side (22) and the first oblique side (24) is a second acute angle, an included angle between the second right-angle side (23) and the first oblique side (24) is a first acute angle, a hollow first inner cavity (20) is formed in the first loose tube (2), a first optical fiber ribbon (21) is arranged in the first inner cavity (20), the first acute angle is=360/n degrees, and the second acute angle is=90-360/n degrees; all the loose tubes (2) of the first type form a cable core (1) with a rectangular cross section, and two of the cable cores (1) form a combined unit, wherein: the first oblique side (24) of the first type loose tube (2) is clung to the first oblique side (24) of the second type loose tube (2), the first right-angle sides (22) of the two first type loose tubes (2) are parallel, the second right-angle sides (23) of the two first type loose tubes (2) are parallel, and the cross section of a combined unit formed by combining the first type loose tube (2) and the second first type loose tube (2) is rectangular; adjacent combination units: the first right-angle edges (22) of the adjacent first loose tubes (2) are closely attached, and the cross section formed by the combination of the adjacent combined units is rectangular; n is more than or equal to 5, n is a positive integer, and X is a positive even number; x and n correspond to the following relationship: when n=5, X is more than or equal to 4; when n=6, X is more than or equal to 4; when n=8, X is not less than 4; when n=12, X is not less than 4; when n=20, X is not less than 4.
4. A fiber optic ribbon cable having at least two loose tubes as claimed in claim 1 or claim 2 or claim 3, wherein: the first loose tube (2) is an integrally formed one-piece structure.
5. A fiber optic ribbon cable having at least two loose tubes as claimed in claim 1 or claim 2 or claim 3, wherein: the first optical fiber ribbon (21) is composed of a plurality of optical fibers and an adhesive layer covering all the optical fibers.
6. An optical fiber ribbon optical cable with at least two loose tubes is provided with a cable core (1) and at least one protective layer coated outside the cable core (1), and is characterized in that: the cable core (1) is formed by combining Y second-class loose tubes (3); the cross section of the second type loose tube (3) is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side (32), the fourth right-angle side (33) and the second bevel side (34), wherein an included angle between the third right-angle side (32) and the second bevel side (34) is a third acute angle, an included angle between the fourth right-angle side (33) and the second bevel side (34) is a fourth acute angle, a hollow second inner cavity (30) is formed in the second loose tube (3), a second optical fiber ribbon (31) is arranged in the second inner cavity (30), the third acute angle=180/n degrees, and the fourth acute angle=90 degrees-180/n degrees; all second-class loose tubes (3) form a cable core (1) with 360 degrees, in the clockwise direction of the cable core (1), in the adjacent second-class loose tubes (3), the third right-angle edges (32) of the current second-class loose tubes (3) are clung to the second bevel edges (34) of the previous second-class loose tubes (3), the vertexes of all third right-angle edges (32) intersecting with the second bevel edges (34) are positioned at the center of the cable core (1), n is more than or equal to 5, n is a positive integer, and Y and n accord with the following relation: when n=5, y=10; when n=6, y=12; when n=8, y=16; when n=12, y=24; when n=20, y=40; when n=30, y=60; when n=36, y=72; when n=45, y=90; when n=60, y=120; when n=90, y=180.
7. An optical fiber ribbon optical cable with at least two loose tubes is provided with a cable core (1) and at least one protective layer coated outside the cable core (1), and is characterized in that: the cable core (1) is formed by combining Y second-class loose tubes (3); the cross section of the second type loose tube (3) is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side (32), the fourth right-angle side (33) and the second bevel side (34), wherein an included angle between the third right-angle side (32) and the second bevel side (34) is a third acute angle, an included angle between the fourth right-angle side (33) and the second bevel side (34) is a fourth acute angle, a hollow second inner cavity (30) is formed in the second loose tube (3), a second optical fiber ribbon (31) is arranged in the second inner cavity (30), the third acute angle=180/n degrees, and the fourth acute angle=90 degrees-180/n degrees; all loose tubes (3) of the second type form a cable core (1) with a rectangular cross section, and two of the cable cores (1) form a combined unit, wherein: the second bevel edge (34) of the first second type loose tube (3) is clung to the second bevel edge (34) of the second type loose tube (3), the third right-angle edges (32) of the two second type loose tubes (3) are parallel, the fourth right-angle edges (33) of the two second type loose tubes (3) are parallel, and the cross section of a combined unit formed by combining the first second type loose tube (3) and the second type loose tube (3) is rectangular; adjacent combination units: the third right-angle sides (32) of the adjacent loose tubes (3) of the second type are closely attached, and the cross section formed by the combination of adjacent combined units is rectangular; n is more than or equal to 5, n is a positive integer, and Y is a positive even number; y and n correspond to the following relationship: when n=5, Y is greater than or equal to 4; when n=6, Y is not less than 4; when n=8, Y is not less than 4; when n=12, Y is greater than or equal to 4; when n=20, Y is greater than or equal to 4; when n=30, Y is not less than 4; when n=36, Y is greater than or equal to 4; when n=45, Y is greater than or equal to 4; when n=60, Y is more than or equal to 4; when n=90, Y is not less than 4.
8. The utility model provides a power cable with two piece at least loose tubes, has cable core (1), cladding at least one deck protective layer (4) outside cable core (1), its characterized in that: the cable core (1) is formed by combining n first-type loose tubes (2) and n second-type loose tubes (3); the cross section of the first loose tube (2) is a right triangle, and three sides of the first loose tube are respectively: the novel cable comprises a first right-angle side (22), a second right-angle side (23) and a first oblique side (24), wherein an included angle between the first right-angle side (22) and the first oblique side (24) is a second acute angle, an included angle between the second right-angle side (23) and the first oblique side (24) is a first acute angle, a hollow first inner cavity (20) is formed in the first loose tube (2), a first conductor is arranged in the first inner cavity (20), the first acute angle is=360/n degrees, and the second acute angle is=90-360/n degrees; the cross section of the second type loose tube (3) is a right triangle, and three sides of the second type loose tube are respectively: the third right-angle side (32), the fourth right-angle side (33) and the second bevel side (34), wherein an included angle between the third right-angle side (32) and the second bevel side (34) is a third acute angle, an included angle between the fourth right-angle side (33) and the second bevel side (34) is a fourth acute angle, a hollow second inner cavity (30) is formed in the second loose tube (3), a second conductor is arranged in the second inner cavity (30), the third acute angle is=180/n degrees, and the fourth acute angle is=90-180/n degrees; the length of the first right-angle side (22) is equal to the length of the third right-angle side (32), and the sum of the length of the second right-angle side (23) and the length of the fourth right-angle side (33) is equal to the length of the first bevel (24); the cross section of the cable core (1) is in a positive n-side shape, vertexes of all second right-angle sides (23) intersecting with the first oblique sides (24) are positioned at the center of the cable core (1), n is more than or equal to 5, and n is a positive integer.
9. The utility model provides a power cable with two piece at least loose tubes, has cable core (1), cladding at least one deck protective layer outside cable core (1), its characterized in that: the cable core (1) is formed by combining X first loose tubes (2); the cross section of the first loose tube (2) is a right triangle, and three sides of the first loose tube are respectively: the novel cable comprises a first right-angle side (22), a second right-angle side (23) and a first oblique side (24), wherein an included angle between the first right-angle side (22) and the first oblique side (24) is a second acute angle, an included angle between the second right-angle side (23) and the first oblique side (24) is a first acute angle, a hollow first inner cavity (20) is formed in the first loose tube (2), a first conductor is arranged in the first inner cavity (20), the first acute angle is=360/n degrees, and the second acute angle is=90-360/n degrees; all first-class loose tubes (2) form a 360-degree cable core (1), in the clockwise direction of the cable core (1), in the adjacent first-class loose tubes (2), the first right-angle edges (22) of the current first-class loose tubes (2) are clung to the first oblique edges (24) of the previous first-class loose tubes (2), vertexes of all first right-angle edges (22) intersecting with the first oblique edges (24) are positioned at the center of the cable core (1), n is more than or equal to 5, n is a positive integer, and X and n accord with the following relation: when n=5, x=20; when n=6, x=12; when n=8, x=8; when n=12, x=6; when n=20, x=5.
10. The utility model provides a power cable with two piece at least loose tubes, has cable core (1), cladding at least one deck protective layer outside cable core (1), its characterized in that: the cable core (1) is formed by combining X first loose tubes (2); the cross section of the first loose tube (2) is a right triangle, and three sides of the first loose tube are respectively: the novel cable comprises a first right-angle side (22), a second right-angle side (23) and a first oblique side (24), wherein an included angle between the first right-angle side (22) and the first oblique side (24) is a second acute angle, an included angle between the second right-angle side (23) and the first oblique side (24) is a first acute angle, a hollow first inner cavity (20) is formed in the first loose tube (2), a first conductor is arranged in the first inner cavity (20), the first acute angle is=360/n degrees, and the second acute angle is=90-360/n degrees; all the loose tubes (2) of the first type form a cable core (1) with a rectangular cross section, and two of the cable cores (1) form a combined unit, wherein: the first oblique side (24) of the first type loose tube (2) is clung to the first oblique side (24) of the second type loose tube (2), the first right-angle sides (22) of the two first type loose tubes (2) are parallel, the second right-angle sides (23) of the two first type loose tubes (2) are parallel, and the cross section of a combined unit formed by combining the first type loose tube (2) and the second first type loose tube (2) is rectangular; adjacent combination units: the first right-angle edges (22) of the adjacent first loose tubes (2) are closely attached, and the cross section formed by the combination of the adjacent combined units is rectangular; n is more than or equal to 5, n is a positive integer, and X is a positive even number; x and n correspond to the following relationship: when n=5, X is more than or equal to 4; when n=6, X is more than or equal to 4; when n=8, X is not less than 4; when n=12, X is not less than 4; when n=20, X is not less than 4.
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| CN202310853794.5A CN116577891B (en) | 2023-07-12 | 2023-07-12 | Optical fiber ribbon cable and power cable with at least two loose tubes |
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Cited By (1)
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| CN116755206A (en) * | 2023-08-23 | 2023-09-15 | 常熟高通智能装备有限公司 | Optical cable with split body, cable and photoelectric composite cable |
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| CN116755206B (en) * | 2023-08-23 | 2023-10-27 | 常熟高通智能装备有限公司 | Optical cable with split body, cable and photoelectric composite cable |
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Effective date of registration: 20240715 Address after: 215500 1 1 Tong Gang Road, Changshou City, Suzhou, Jiangsu. Patentee after: CHANGSHU BANGZHI PHOTOELECTRIC TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 215500 1 1 Tong Gang Road, Changshou City, Suzhou, Jiangsu. Patentee before: CHANGSHU BANGZHI PHOTOELECTRIC TECHNOLOGY Co.,Ltd. Country or region before: China Patentee before: XIANGYANG POWER SUPPLY COMPANY OF STATE GRID HUBEI ELECTRIC POWER Co.,Ltd. |
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