CN118068501B - Photoelectric hybrid optical cable - Google Patents
Photoelectric hybrid optical cable Download PDFInfo
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- CN118068501B CN118068501B CN202410459541.4A CN202410459541A CN118068501B CN 118068501 B CN118068501 B CN 118068501B CN 202410459541 A CN202410459541 A CN 202410459541A CN 118068501 B CN118068501 B CN 118068501B
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- fiber ribbon
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- 230000003287 optical effect Effects 0.000 title claims abstract description 49
- 239000013307 optical fiber Substances 0.000 claims abstract description 108
- 239000011241 protective layer Substances 0.000 claims abstract description 34
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 27
- 238000000926 separation method Methods 0.000 claims abstract description 23
- 239000010410 layer Substances 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 13
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 230000005693 optoelectronics Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 34
- 230000002787 reinforcement Effects 0.000 abstract description 20
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
Classifications
-
- 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
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4448—Electro-optic
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention belongs to the technical field of optical cables, and discloses a butterfly-shaped optical cable with an optical fiber ribbon, which is provided with a containing part (1), the optical fiber ribbon (2), four butterfly-shaped units (3), a reinforcing part (4), a protective layer (5) and an outer protective layer (6), and is characterized in that the containing part (1) is composed of a base strip with a cross section in a shape like a Chinese character 'Hui', four combined parts, each combined part is composed of first to fourth separation strips which are mutually parallel and are distributed in sequence at intervals, grooves are arranged between adjacent separation strips, the combined parts extend outwards from the outer surface of the base strip, and a central cavity (100) is formed in the base strip; an angular cavity (10) is formed between adjacent combined parts; the reinforcement (4) is located in the central cavity, the butterfly units (3) are all located in the corner cavities (10), and the optical fiber ribbon (2) is located in the groove. The invention also discloses an optical fiber ribbon cable and an optical-electrical hybrid cable. The invention has the following beneficial effects: the multi-user is accessed once, the fiber core density is higher, and the space utilization rate is higher.
Description
Technical Field
The invention belongs to the technical field of optical cables, and particularly discloses a butterfly-shaped optical cable with an optical fiber ribbon, an optical fiber ribbon optical cable and a photoelectric hybrid optical cable.
Background
The optical fiber ribbon cable commonly used in the prior art is recommended in the communication industry standard YD/T981 of the people's republic of China, however, the central beam tube structure is only provided with one central beam tube and the central beam tube needs to be peeled off, the optical fiber ribbon cable is difficult to recover after being cut off, and the optical fiber ribbon cable which is not in use can be influenced; in the layer-twisting structure, a plurality of loose tubes are twisted, the loose tubes can be taken out only by back twisting, and the required optical fiber ribbons can be taken out only by cutting the loose tubes, so that the loose tubes are extremely difficult to recover after cutting and back twisting; in the skeleton-type optical cable, skeleton grooves are circumferentially distributed, so that the problem is solved, but when the skeleton-type optical cable is used in a space with a square or rectangular cross section, the space utilization rate is low, the fiber core density is low, and in addition, the power is not convenient to simultaneously transmit and/or butterfly units are simultaneously used in the same cable, and the butterfly units can realize FTTH.
CN116665981a discloses a butterfly-shaped optical cable with a curved optical fiber ribbon, which has a plurality of optical fiber ribbons, four power transmission components, a butterfly-shaped introducing unit, and a protective layer; the method is characterized in that: the shell part is square in cross section and consists of four identical first shells and a central body; the power transmission component is positioned in the first shell, the optical fiber ribbon is in a bent shape, the optical fiber ribbon is positioned in a bent cavity formed by the adjacent first shells, and the butterfly-shaped introducing unit is positioned in a central cavity of the central body; the protective layer is coated outside the shell component. The method has the beneficial technical effects that: the fiber core density is higher, the photoelectric simultaneous transmission can be realized in the same cable, the structure is simple and compact, the manufacture is easy, the space utilization rate is higher, the power transmission capacity is stronger, and the power transmission mode is more flexible. But it can only use one butterfly-shaped lead-in unit and cannot be used for multi-user access in a building.
CN116560026a discloses a layer twisted optical fiber ribbon optical cable, which has a central reinforcement, a plurality of optical fibers, a protective layer, an outer protective layer, and an optical fiber ribbon, and is characterized in that: the optical fiber is positioned in the shell cavity of the first shell component, the protective layer wraps all the first shell components, and the outer protective layer is positioned outside the protective layer, wherein N is a positive integer, and N is more than or equal to 3. It also discloses a butterfly drop cable with an optical fiber ribbon. The method has the following main beneficial technical effects: the fiber core density is higher, the number of optical fibers in the optical fiber ribbon is more, the product material consumption is less, the cost is lower, the overall dimension is smaller, the optical fiber ribbon can be used for optical co-cable transmission, and the fiber ribbon is suitable for FTTH access. But it is a circular structure and space utilization is yet to be improved.
Disclosure of Invention
In order to solve the problems, the invention aims to disclose a butterfly-shaped optical cable with an optical fiber ribbon, an optical fiber ribbon optical cable and an optical-electrical hybrid optical cable, which are realized by adopting the following technical scheme.
The utility model provides a butterfly-shaped optical cable with optical fiber ribbon, have holding part, many optical fiber ribbon, four butterfly-shaped units, the reinforcement, the protective layer, the outer sheath, the optical fiber ribbon comprises many optic fibers, the tie coat of wrapping up many optic fibers wholly, the butterfly-shaped unit comprises optic fibre, two reinforcements, butterfly-shaped sheath, two reinforcements are located optic fibre's upper and lower both sides respectively, butterfly-shaped sheath wraps optic fibre, two reinforcements, have sunken tearing mouth on the butterfly-shaped sheath of optic fibre's the left and right sides, the protective layer wraps holding part, all butterfly-shaped units, the outer sheath is located outside the protective layer, its characterized in that: the accommodating part consists of a base strip with a cross section in a shape like a Chinese character 'hui' and four combined parts, each combined part consists of a first separating strip, a second separating strip, a third separating strip and a fourth separating strip which are mutually parallel and are sequentially distributed in a clearance mode, a first groove is formed between the first separating strip and the second separating strip, a second groove is formed between the second separating strip and the third separating strip, a third groove is formed between the third separating strip and the fourth separating strip, each combined part extends outwards from one outer surface of the base strip, and on any cross section perpendicular to the axis of the accommodating part, the outer surfaces of all separating strips are on the same square edge, and a central cavity is formed inside the base strip; an angle cavity is formed between adjacent combined parts, and a convex strip is arranged in the angle cavity and close to the base strip; the first groove, the second groove and the third groove are collectively called a groove, and the first separation strip to the fourth separation strip are collectively called a separation strip; the reinforcement is located in the central cavity, each butterfly unit is located in one corner cavity, the optical fiber ribbon is located in the groove, the cross section of the optical fiber ribbon is rectangular, and in the groove, the length direction of the optical fiber ribbon is parallel to the length direction of the separation strip.
The utility model provides an optical fiber ribbon cable, have holding part, many optical fiber ribbon, four butterfly units, the reinforcement, the protective layer, the outer sheath, the optical fiber ribbon comprises many optic fibers, the tie coat of wrapping up many optic fibers as a whole, the butterfly unit comprises optic fibre, two reinforcements, butterfly sheath, two reinforcements are located optic fibre's upper and lower both sides respectively, butterfly sheath wraps optic fibre, two reinforcements, have sunken tearing mouth on optic fibre's the butterfly sheath of left and right sides, the protective layer wraps holding part, all butterfly units, the outer sheath is located outside the protective layer, its characterized in that: the accommodating part consists of a base strip with a cross section in a shape like a Chinese character 'hui' and four combined parts, each combined part consists of a first separating strip, a second separating strip, a third separating strip and a fourth separating strip which are mutually parallel and are sequentially distributed in a clearance mode, a first groove is formed between the first separating strip and the second separating strip, a second groove is formed between the second separating strip and the third separating strip, a third groove is formed between the third separating strip and the fourth separating strip, each combined part extends outwards from one outer surface of the base strip, the combined parts at opposite positions are identical, the combined parts at adjacent positions are different, the outer surfaces of all the separating strips are all on the same rectangular side on any cross section perpendicular to the axis of the accommodating part, and a central cavity is formed inside the base strip; an angle cavity is formed between adjacent combined parts; the first groove, the second groove and the third groove are collectively called a groove, and the first separation strip to the fourth separation strip are collectively called a separation strip; the reinforcement is located the center intracavity, and every butterfly unit all is located an angle intracavity, and the optical fiber ribbon is located the recess, and the cross section of optical fiber ribbon is rectangle, in the recess, the length direction of optical fiber ribbon is parallel with the length direction of parting bead, and the height of butterfly unit is equal with the height of the higher parting bead of height, and the width of butterfly unit is equal with the height of the lower parting bead of height.
The utility model provides a photoelectric hybrid cable, have holding part, many optical fiber area, four butterfly units, the reinforcement, the protective layer, the outer sheath, the optical fiber area comprises many optic fibers, the tie coat of wrapping up many optic fibers wholly, the butterfly unit comprises optic fibre, two reinforcements, butterfly sheath, two reinforcements are located optic fibre's upper and lower both sides respectively, butterfly sheath wraps optic fibre, two reinforcements, have sunken tearing mouth on the butterfly sheath of optic fibre's the left and right sides, the protective layer wraps holding part, all butterfly units, the outer sheath is located outside the protective layer, its characterized in that: the accommodating part consists of a base strip with a cross section in a shape like a Chinese character 'hui' and four combined parts, each combined part consists of a first separating strip, a second separating strip, a third separating strip and a fourth separating strip which are mutually parallel and are sequentially distributed in a clearance mode, a first groove is formed between the first separating strip and the second separating strip, a second groove is formed between the second separating strip and the third separating strip, a third groove is formed between the third separating strip and the fourth separating strip, each combined part extends outwards from one outer surface of the base strip, and on any cross section perpendicular to the axis of the accommodating part, the outer surfaces of all separating strips are on the same square edge, and a central cavity is formed inside the base strip; an angle cavity is formed between adjacent combined parts, and a convex strip is arranged in the angle cavity and close to the base strip; the first groove, the second groove and the third groove are collectively called a groove, and the first separation strip to the fourth separation strip are collectively called a separation strip; the reinforcing pieces are four, each reinforcing piece is composed of a conductor and an insulating layer, the insulating layer is coated outside the conductor, and the cross sections of the conductor and the insulating layer are square; the central cavity is filled with four reinforcing pieces, the reinforcing piece body formed by the four reinforcing pieces is clung to the inner wall of the base strip, each butterfly-shaped unit is located in one corner cavity, the optical fiber ribbon is located in the groove, the cross section of the optical fiber ribbon is rectangular, and the length direction of the optical fiber ribbon is parallel to the length direction of the separation strip.
The application has the following main beneficial technical effects: the multi-user is accessed once, the fiber core density is higher, and the space utilization rate is higher.
Drawings
Fig. 1 is a schematic perspective view of a section of anatomy of example 1.
Fig. 2 is an enlarged schematic cross-sectional structure of fig. 1.
Fig. 3 is a schematic perspective view of a section of the receiving member used in fig. 1 after dissection.
Fig. 4 is an enlarged schematic cross-sectional structure of fig. 3.
Fig. 5 is a schematic perspective view of a section of anatomy of example 2.
Fig. 6 is an enlarged schematic cross-sectional structure of fig. 5.
Fig. 7 is a schematic cross-sectional structure of the accommodating member used in embodiment example 3.
Fig. 8 is a schematic view showing a section of an anatomic structure after the combination of the accommodating member and the butterfly unit used in embodiment example 4.
Fig. 9 is an enlarged schematic cross-sectional structure of fig. 8.
Fig. 10 is a schematic cross-sectional structure of the accommodating member used in embodiment example 4.
Fig. 11 is a schematic cross-sectional structure of the accommodating member used in embodiment example 5.
Detailed Description
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-receiving member, 2-optical fiber ribbon, 3-butterfly unit, 4-reinforcing member, 5-protective layer, 6-outer protective layer, 21-optical fiber, 22-adhesive layer, 31-optical fiber, 32-reinforcing member, 33-butterfly sheath, 331-tear seam, 10-angular cavity, 11-first spacer, 12-second spacer, 13-third spacer, 14-fourth spacer, 1 a-rib, 110-first groove, 120-second groove, 130-third groove, 100-central cavity, 41-conductor, 42-insulating layer, 121-tear seam.
Implementation example 1: referring to fig. 1 to 4, a butterfly-shaped optical cable with optical fiber ribbon is provided with a containing component 1, a plurality of optical fiber ribbons 2, four butterfly-shaped units 3, a reinforcing member 4, a protective layer 5 and an outer protective layer 6, wherein the optical fiber ribbon 2 is composed of a plurality of optical fibers 21 and an adhesive layer 22 which entirely covers the optical fibers, the butterfly-shaped units 3 are composed of an optical fiber 31, two reinforcing members 32 and a butterfly-shaped sheath 33, the two reinforcing members 32 are respectively positioned on the upper side and the lower side of the optical fiber 31, the butterfly-shaped sheath 33 covers the optical fiber 31 and the two reinforcing members 32, the butterfly-shaped sheaths 33 on the left side and the right side of the optical fiber 31 are provided with concave tearing openings 331, the protective layer 5 covers the containing component and all the butterfly-shaped units, and the outer protective layer 6 is positioned outside the protective layer 5, and is characterized in that: the accommodating part 1 is composed of a base strip with a cross section in a shape like a Chinese character 'hui' and four combined parts, each combined part is composed of a first separating strip 11, a second separating strip 12, a third separating strip 13 and a fourth separating strip 14 which are mutually parallel and sequentially distributed at intervals, a first groove 110 is formed between the first separating strip 11 and the second separating strip 12, a second groove 120 is formed between the second separating strip 12 and the third separating strip 13, a third groove 130 is formed between the third separating strip 13 and the fourth separating strip 14, each combined part extends outwards from one outer surface of the base strip, on any cross section perpendicular to the axis of the accommodating part, the outer surfaces of all separating strips are on the same square side, and the inside of the base strip is provided with a central cavity 100; an angle cavity 10 is formed between adjacent combined parts, and a raised strip 1a is arranged in the angle cavity 10 and close to the base strip; the first groove, the second groove and the third groove are collectively called a groove, and the first separation strip to the fourth separation strip are collectively called a separation strip; the stiffener 4 is located in the central cavity 100, each butterfly unit 3 is located in one of the corner cavities 10, the ribbons 2 are located in grooves, the cross section of the ribbons 2 is rectangular, and in the grooves, the length direction of the ribbons 2 is parallel to the length direction of the spacer bars.
The butterfly-shaped optical cable with an optical fiber ribbon described above is characterized in that: the accommodating part 1 is of an integral structure.
The butterfly-shaped optical cable with an optical fiber ribbon described above is characterized in that: the reinforcement 4 is in close contact with the inner wall of the base strip.
The butterfly-shaped optical cable with an optical fiber ribbon described above is characterized in that: the cross-sectional shape of the stiffener 4 is similar to the cross-sectional shape of the central cavity 100.
The butterfly-shaped optical cable with an optical fiber ribbon described above is characterized in that: the height of the butterfly unit 3 is 3.0 plus or minus 0.2mm, and the width is 2.0 plus or minus 0.2mm; or the butterfly unit 3 has a height of 2.0 + -0.2 mm and a width of 1.6 + -0.2 mm.
The butterfly-shaped optical cable with an optical fiber ribbon described above is characterized in that: at least one optical fiber ribbon 2 is arranged in the groove, and when a plurality of optical fiber ribbons 2 are arranged in the groove, the optical fiber ribbons 2 are vertically stacked in the groove.
Implementation example 2: please refer to fig. 5 to 6, and refer to fig. 3 to 4, a butterfly optical cable with optical fiber ribbon is basically the same as embodiment 1, except that: the reinforcing members 4 are four, each reinforcing member 4 is composed of a conductor 41 and an insulating layer 42, the insulating layer 42 is coated outside the conductor 41, the cross sections of the conductor 41 and the insulating layer 42 are square, and the four same reinforcing members 4 are positioned in the central cavity 100 to form a two-phase power transmission line or a three-phase four-wire power transmission line for transmitting three-phase power; the central cavity 100 is filled with four reinforcing pieces 4, and the reinforcing piece body formed by the four reinforcing pieces 4 is tightly attached to the inner wall of the base strip.
Implementation example 3: please refer to fig. 7, and refer to fig. 1 to 6, a butterfly optical cable with optical fiber ribbon, which is basically the same as embodiment example 1 or embodiment example 2, except that: no protruding strip is present.
Implementation example 4: please refer to fig. 8 to 10, and refer to fig. 1 to 6, a butterfly optical cable with optical fiber ribbon is basically the same as embodiment 3, except that: the combination parts at opposite positions are identical, the combination parts at adjacent positions are different, the outer surfaces of all the separation strips are arranged on the same rectangular side on any cross section perpendicular to the axis of the accommodating part, the height of the butterfly unit 3 is equal to or close to the height of the separation strip with higher height, and the width of the butterfly unit 3 is equal to or close to the height of the separation strip with lower height.
Implementation example 5: please refer to fig. 11, and refer to fig. 1 to 6, a butterfly optical cable with optical fiber ribbon, basically the same as embodiment 3, except that: the thickness of the base strip at the bottom of the second groove 120 is thinner than that of the base strips at the bottoms of the first groove and the third groove, and the base strip at the bottom of the second groove 120 is provided with a split 121; of course, the second groove 120 and the split opening 121 in this embodiment may be used in any other embodiment, where the base strip at the bottom of the second groove 120 and the split opening 121 are thinner, so that the base strip at the bottom of the second groove 120 may be conveniently removed, and the optical fiber ribbon may further extend into the central cavity 100, so that the optical fiber ribbons with different cores may be placed, and the application range and flexibility of use are expanded.
A butterfly-shaped optical cable with an optical fiber ribbon, also referred to herein as an optical fiber ribbon cable.
Of course, if the reinforcement 4 is composed of the conductor 41 and the insulating layer 42, the insulating layer 42 may be called a photoelectric hybrid cable when the conductor 41 is covered with the insulating layer 42.
In the present application, either a butterfly-shaped optical cable with an optical fiber ribbon, an optical fiber ribbon optical cable, or an optical-electrical hybrid optical cable may be collectively referred to as an optical cable.
The optical cable disclosed by the application is characterized in that: the material of the accommodating part 1 is plastic.
The optical cable disclosed by the application is characterized in that: the material of the reinforcement 4 is steel wire or glass fiber reinforced plastic.
The optical cable disclosed by the application is characterized in that: the material of the protective layer 5 is a water-blocking tape or a non-woven fabric or a steel tape or an aluminum tape or a glass fiber reinforced plastic tape or a polyester tape or a fire-proof tape.
The optical cable disclosed by the application is characterized in that: the material of the outer sheath 6 is plastic.
The optical cable disclosed by the application is characterized in that: the type of optical fiber 21 is single mode or multimode.
The optical cable disclosed by the application is characterized in that: the material of the adhesive layer 22 is plastic.
The optical cable disclosed by the application is characterized in that: the model of the optical fiber 31 is g.652 or g.654 or g.657 or A1a or A1b or A1c or A1d.
The optical cable disclosed by the application is characterized in that: the material of the reinforcement 32 is steel wire or glass fiber reinforced plastic or aramid yarn.
The optical cable disclosed by the application is characterized in that: the material of the butterfly sheath 33 is plastic.
The optical cable disclosed by the application is characterized in that: the material of the conductor 41 is copper or aluminum or copper alloy or aluminum alloy.
The optical cable disclosed by the application is characterized in that: the material of the insulating layer 42 is plastic.
In the application, the case of having at least two separating strips, such as two separating strips, three separating strips and n separating strips, namely, the first separating strip and the second separating strip when having two separating strips, the first separating strip, the second separating strip and the third separating strip when having three separating strips, the first separating strip, the second separating strip, … …, the n-1 separating strip and the n separating strip when having n separating strips, the adjacent separating strips are all provided with grooves, namely, the first groove is arranged between the first separating strip and the second separating strip, the second groove is arranged between the second separating strip and the third separating strip, and the n-1 groove is arranged between the … … th separating strip and the n-1 th separating strip; the optical fiber ribbon is vertically arranged in the groove, namely one side of the width of the optical fiber ribbon is contacted with the bottom of the groove; the number of optical fiber ribbons can be greatly increased or flexible for use.
In the present application, since the cross section of the butterfly unit is approximately rectangular, and the corner cavity 10 as in embodiment 1 and embodiment 2 is square, when the butterfly unit is placed in the corner cavity 10, the butterfly unit has a larger gap, so that the butterfly unit is not fixed in construction and use, and the structure is unstable, and when the protruding strip 1a is arranged in the corner cavity 10, the butterfly unit is limited relatively, so that the relative fixing of the position is realized; in the case of fig. 8 to 10, the corner cavity 10 has a rectangular cross section, so that space is saved to the greatest extent, and the butterfly unit and the corner cavity 10 are matched in size.
In the application, the appearance of the accommodating part 1 is in a shape like a square, so that the optical cable can be made into a square structure, thereby being convenient for laying square pipelines and maximally utilizing the space in the prior art; further, the optical fiber ribbon can be deformed in a shape like a Chinese character 'hui', namely, a rectangular loop structure, so that the optical fiber ribbon with large core number can be placed in the long direction, the optical fiber ribbon with small core number can be placed in the wide direction, the space can be more reasonably utilized, the optical fiber ribbon is suitable for the requirements of different users, meanwhile, the optical fiber ribbon can be more suitable for the pipeline with the rectangular section, the space utilization rate is higher, and the requirements of the optical fiber are more suitable for the requirements of the users; in the application, the butterfly unit can also be used with small dimensions, for example, the nominal value of the cross section is 2mm long and the nominal value of the width is 1.6mm; the optical fiber ribbons matched with the optical fiber ribbons in the optical fiber ribbon types smaller than 12 are also suitable, the space can be utilized to the greatest extent, and butterfly-shaped units with the cross section of 3mm and the width of 2mm can be matched, so that the butterfly-shaped units with different specifications are arranged in the same optical cable; the optical fiber connector is more flexible and more universal, and can be conveniently used by a splice operator even if only one optical fiber connector exists.
Compared with the prior art, the invention has four butterfly units in the same cable, thereby realizing the simultaneous access of multiple households in the same building; the optical cable can also be provided with a plurality of optical fiber belts, and the same cable can be provided with optical cable belts with a plurality of core numbers, so that the flexibility of use is improved, and the fiber core density is improved; in addition, the cross sections of the outer protective layer and the protective layer can be rectangular or square, and when the protective layer is used in rectangular or square space, the space utilization rate is greatly improved.
Due to the prior art: the maximum dimensions of the optical fiber ribbon recommended in the communication industry standard YD/T979-2009 optical fiber ribbon technical requirement and inspection method of the people's republic of China are as follows: the width of the 2-fiber ribbon was 0.7mm, the width of the 4-fiber ribbon was 1.22mm, the width of the 6-fiber ribbon was 1.77mm, the width of the 8-fiber ribbon was 2.3mm, the width of the 12-fiber ribbon was 3.4mm, and the width of the 24-fiber ribbon was 6.8mm; in practice, the widths of the optical fiber ribbons produced by enterprises are slightly smaller than the values; for example, a 12-fiber ribbon may have a practical typical width of 3.0mm and an 8-fiber ribbon may have a practical typical width of 2.0mm, which exactly matches the nominal heights of 3.0mm and 2.0mm of the butterfly unit of the prior art; therefore, the butterfly unit can utilize the angular cavity to the greatest extent in the application; in the prior art, the skeleton cable and the optical fiber ribbon are transversely paved at the bottom of the skeleton groove, so that the skeleton cable is suitable for 4-core optical fiber ribbon and 6-core optical fiber ribbon in practice, when the optical fiber ribbon with large core number is used, a skeleton with larger diameter is needed, and cost and space are wasted.
The invention has the following main beneficial technical effects: the multi-user one-time access can be realized, the fiber core density is higher, and the space utilization rate is higher.
The above-described embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention 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 invention are also within the scope of the invention.
Claims (2)
1. An optoelectronic hybrid optical cable is provided with a containing part (1), a plurality of optical fiber belts (2), four butterfly-shaped units (3), reinforcing pieces (4), a protective layer (5) and an outer protective layer (6), wherein the optical fiber belts (2) are composed of a plurality of optical fibers (21) and an adhesive layer (22) for integrally wrapping the optical fibers, the butterfly-shaped units (3) are composed of optical fibers (31), two reinforcing pieces (32) and a butterfly-shaped sheath (33), the two reinforcing pieces (32) are respectively arranged on the upper side and the lower side of the optical fibers (31), the butterfly-shaped sheath (33) wraps the optical fibers (31) and the two reinforcing pieces (32), concave tearing openings (331) are formed in the butterfly-shaped sheaths (33) on the left side and the right side of the optical fibers (31), the protective layer (5) wraps the containing part and all the butterfly-shaped units, and the outer protective layer (6) is arranged outside the protective layer (5), and is characterized in that: the accommodating part (1) is composed of a base strip with a cross section in a shape like a Chinese character 'Hui', four combined parts, each combined part is composed of a first separating strip (11), a second separating strip (12), a third separating strip (13) and a fourth separating strip (14) which are mutually parallel and are sequentially distributed in a clearance mode, a first groove (110) is formed between the first separating strip (11) and the second separating strip (12), a second groove (120) is formed between the second separating strip (12) and the third separating strip (13), a third groove (130) is formed between the third separating strip (13) and the fourth separating strip (14), each combined part extends outwards from one outer surface of the base strip, and on any cross section perpendicular to the axis of the accommodating part, the outer surfaces of all separating strips are on the same square edge, and a central cavity (100) is formed inside the base strip; an angle cavity (10) is formed between adjacent combined parts, and a raised line (1 a) is arranged in the angle cavity (10) and close to the base strip; the first groove, the second groove and the third groove are collectively called a groove, and the first separation strip to the fourth separation strip are collectively called a separation strip; the reinforcing pieces (4) are four, each reinforcing piece (4) is composed of a conductor (41) and an insulating layer (42), the insulating layer (42) is coated outside the conductor (41), and the cross sections of the conductor (41) and the insulating layer (42) are square; the central cavity (100) is filled with four reinforcing pieces (4), a reinforcing piece body formed by the four reinforcing pieces (4) is clung to the inner wall of the base strip, each butterfly-shaped unit (3) is positioned in one corner cavity (10), the optical fiber ribbon (2) is positioned in the groove, the cross section of the optical fiber ribbon (2) is rectangular, and the length direction of the optical fiber ribbon (2) is parallel to the length direction of the separation strip;
The thickness of the base strip at the bottom of the second groove (120) is thinner than that of the base strips at the bottoms of the first groove and the third groove, and the base strip at the bottom of the second groove (120) is provided with a split (121); after the base strip at the bottom of the second groove (120) is removed, the optical fiber ribbon can extend into the central cavity (100), the accommodating grooves are formed in the middle of the four outer edges of the reinforcing piece (4), the optical fiber ribbon can extend into the accommodating grooves, and the reinforcing piece (4) is clung to the inner wall of the base strip.
2. An optical and electrical hybrid cable according to claim 1, characterized in that: the accommodating part (1) is of an integrated structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410459541.4A CN118068501B (en) | 2024-04-17 | 2024-04-17 | Photoelectric hybrid optical cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410459541.4A CN118068501B (en) | 2024-04-17 | 2024-04-17 | Photoelectric hybrid optical cable |
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| CN118068501B true CN118068501B (en) | 2024-07-16 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112711109A (en) * | 2020-12-21 | 2021-04-27 | 常熟迅联光电科技有限公司 | Easily-expanded butterfly-shaped leading-in optical cable, photoelectric composite cable and construction method of photoelectric composite cable |
| CN112835162A (en) * | 2021-01-23 | 2021-05-25 | 常熟高通智能装备有限公司 | Optical fiber ribbon cable |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112711109A (en) * | 2020-12-21 | 2021-04-27 | 常熟迅联光电科技有限公司 | Easily-expanded butterfly-shaped leading-in optical cable, photoelectric composite cable and construction method of photoelectric composite cable |
| CN112835162A (en) * | 2021-01-23 | 2021-05-25 | 常熟高通智能装备有限公司 | Optical fiber ribbon cable |
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| CN118068501A (en) | 2024-05-24 |
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