CN220019945U - Multi-core optical cable - Google Patents
Multi-core optical cable Download PDFInfo
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- CN220019945U CN220019945U CN202320271553.5U CN202320271553U CN220019945U CN 220019945 U CN220019945 U CN 220019945U CN 202320271553 U CN202320271553 U CN 202320271553U CN 220019945 U CN220019945 U CN 220019945U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 52
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 63
- 239000000835 fiber Substances 0.000 claims abstract description 42
- 230000002787 reinforcement Effects 0.000 claims description 27
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000013307 optical fiber Substances 0.000 description 19
- 239000010410 layer Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000003623 enhancer Substances 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001179 medium density polyethylene Polymers 0.000 description 2
- 239000004701 medium-density polyethylene Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013305 flexible fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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Abstract
The utility model discloses a multi-core optical cable, which comprises at least one reinforcing subunit and a plurality of soft subunits, wherein one reinforcing subunit is positioned in the middle, the plurality of soft subunits are arranged around the reinforcing subunit positioned in the middle, the reinforcing subunit comprises a reinforcing piece and a plurality of outer fiber cores surrounding the reinforcing piece, and the soft subunits comprise a middle fiber core and a plurality of outer fiber cores surrounding the middle fiber core. In the multi-core optical cable, for the multi-core optical cable, a plurality of fiber cores are respectively formed into subunits, and then the subunits are cabled, so that the tightness among the fiber cores is greatly increased, the fiber core density is improved, the use of fiber paste and the like is further reduced, and meanwhile, the outer diameter can be effectively reduced. In addition, the reinforcing piece is replaced by a combined structure of the reinforcing piece and the fiber core, so that the fiber core can be used for reinforcing, the density of the fiber core can be effectively improved, and the effect of reducing the outer diameter is achieved.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a multi-core optical cable.
Background
At present, a GYDTA 576 core layer twisted type ribbon cable is generally adopted as a high-core-number access optical cable, and the existing product technology is that 8 sleeves containing 72 core fiber-carrying matrixes are twisted into cable cores or 6 sleeves containing 96 core fiber-carrying matrixes are twisted into cable cores, and then a layer of MDPE (medium density polyethylene) sheath with the thickness of 1.8mm is longitudinally covered and extruded through a composite aluminum tape. The outer diameter of the optical cable after the sheath is about 23.5mm, the manufacturing cost is higher, and the occupied space of the room is large when the optical cable is installed. Therefore, the space occupation of the existing data machine room and the influence of pipeline resources are large, the installation requirement space is large, and when in connection, a large amount of optical fiber paste is removed to influence the environment and safety of the machine room.
In summary, how to effectively solve the problem that the core density of the existing multi-core optical cable is difficult to be improved is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, an object of the present utility model is to provide a multi-core optical cable that can effectively solve the problem that the core density of the existing multi-core optical cable is difficult to increase.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a multi-core optical cable comprising at least one reinforcing subunit and a plurality of flexible subunits, one reinforcing subunit being located in the middle, a plurality of flexible subunits being disposed around the reinforcing subunit located in the middle, the reinforcing subunits comprising a reinforcing member and a plurality of outer cores surrounding the reinforcing member, the flexible subunits comprising a middle core and a plurality of outer cores surrounding the middle core.
In the multi-core optical cable, for the multi-core optical cable, a plurality of fiber cores are respectively formed into subunits, and then the subunits are cabled, so that the tightness among the fiber cores is greatly increased, the fiber core density is improved, the use of fiber paste and the like is further reduced, and meanwhile, the outer diameter can be effectively reduced. In addition, the reinforcing piece is replaced by a combined structure of the reinforcing piece and the fiber core, so that the fiber core can be used for reinforcing, the density of the fiber core can be effectively improved, and the effect of reducing the outer diameter is achieved. In summary, the multi-core optical cable can effectively solve the problem that the core density of the existing multi-core optical cable is difficult to improve.
Preferably, the outer core and the middle core are each a ferrule unit comprising a ferrule layer and twelve optical fiber units located within the ferrule layer.
Preferably, the reinforcement sub-unit comprises a reinforcement and six outer cores that in turn tightly surround the reinforcement; the soft subunit comprises a middle fiber core and six outer fiber cores which are sequentially and tightly surrounded on the middle fiber core.
Preferably, the sheath layer of the middle core is an ultra-high molecular weight PE sheath.
Preferably, an outer sheath is included, each of the reinforcing subunits and each of the flexible subunits being located within the outer sheath.
Preferably, the outer sheath is a high density polyethylene sheath.
Preferably, the middle reinforcing subunit is surrounded by at least one reinforcing subunit and a plurality of soft subunits.
Preferably, the outer side of the middle reinforcing subunit is tightly surrounded by three reinforcing subunits and three soft subunits, and the three reinforcing subunits and the three soft subunits on the outer side of the middle reinforcing subunit are alternately arranged.
Preferably, the outer sides of the middle reinforcing subunit are tightly surrounded with six soft subunits in turn.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a multi-core optical cable according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of another multi-core optical cable according to an embodiment of the present utility model.
The figures are marked as follows:
a reinforcement unit 1, a soft subunit 2, an outer sheath 3, a central core 4, an outer core 5, a reinforcement 6.
Detailed Description
The embodiment of the utility model discloses a multi-core optical cable which can effectively solve the problem that the density of the fiber core of the existing multi-core optical cable is difficult to improve.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, fig. 1 is a schematic structural diagram of a multi-core optical cable according to an embodiment of the present utility model; fig. 2 is a schematic structural diagram of another multi-core optical cable according to an embodiment of the present utility model.
In some embodiments, the present embodiment provides a multi-core optical cable, and in particular, the multi-core optical cable mainly includes at least one reinforcing subunit 1 and a plurality of soft subunits 2, where one reinforcing subunit 1 may be provided, or a plurality of reinforcing subunits 1 may be provided.
One of the reinforcing subunits 1 is located in the middle, namely a middle subunit, and a plurality of the soft subunits 2 are arranged around the reinforcing subunits 1 located in the middle, namely a plurality of the soft subunits 2 are arranged around the middle subunit, namely all the subunits arranged around the middle subunit, namely the subunits arranged around the middle subunit, can be partly the reinforcing subunits 1, and the other part of the subunits is the soft subunits 2, and can also be the soft subunits 2.
The main components of the reinforcing unit 1 and the soft subunit 2 are fiber cores, each fiber core comprises a plurality of optical fiber units, and the reinforcing subunit 1 and the soft subunit 2 are different in that the middle part of the reinforcing subunit 1 is a reinforcing piece 6, and the middle part of the soft subunit 2 is a fiber core without the reinforcing piece 6.
In particular, where the reinforcement subunit 1 comprises a reinforcement member 6 and a plurality of outer cores 5 surrounding said reinforcement member 6, it is of course possible to provide not only the outer cores 5 but also other reinforcement members 6 at the same time, outside the reinforcement member 6 in the middle. Typically, six wires are closely surrounded by the outer part of the reinforcement 6, wherein the six wires may be all the outer cores 5, or may be part of the outer cores 5, and part of the reinforcement, such as three outer cores 5 and three outer reinforcements, are staggered outside the middle reinforcement. In this case, the outer core 5 and the middle reinforcing member have generally equal or very close diameters, that is, the round characteristics are used, so that the inner compact structure can be formed by combination.
Wherein the soft subunit 2 comprises a central core 4 and a plurality of outer cores 5 surrounding the central core, typically six outer cores 5 are disposed around the central core 4. It should be noted that the middle core 4 and the outer core 5 may have the same structure, or may be different from each other, but generally have the same or similar diameters, so as to form a compact structure. The outer core 5 of the soft subunit 2 and the outer core 5 of the reinforcing subunit 1 may have the same structure or may be different from each other. In which the diameter of the enhancer unit 1 and the soft subunit 2 should be equal or very similar to each other in order to combine to form an internally compact structure.
In the multi-core optical cable, for the multi-core optical cable, a plurality of fiber cores are respectively formed into subunits, and then the subunits are cabled, so that the tightness among the fiber cores is greatly increased, the fiber core density is improved, the use of fiber paste and the like is further reduced, and meanwhile, the outer diameter can be effectively reduced. In addition, the reinforcing member 6 is replaced by a combined structure of the reinforcing member 6 and the fiber core, so that the fiber core can be used for reinforcing, the fiber core density can be effectively improved, and the effect of reducing the outer diameter is achieved. In summary, the multi-core optical cable can effectively solve the problem that the core density of the existing multi-core optical cable is difficult to improve.
In some embodiments, the outer fiber core 5 and the middle fiber core 4 may be plastic-sleeved units, and the plastic-sleeved units include a sleeve layer and twelve optical fiber units located in the sleeve layer, which may, of course, also be that the number of the optical fiber units in the sleeve layer is more than twelve or less than twelve, and specifically, may be correspondingly arranged according to needs.
In some embodiments, the reinforcement subunit 1 may be made to include a reinforcement member 6 and six outer cores 5 that in turn tightly surround the reinforcement member 6, wherein the diameter of the reinforcement member 6 and the diameter of the outer cores 5 are equal. Correspondingly, it is also possible to let the soft subunit 2 comprise a central core 4 and six outer cores 5 located in the central core, in turn, tightly surrounding the central core, wherein the diameters of the central core 4 and the outer cores 5 may be equal. So that the reinforcement sub-unit 1 and the soft sub-unit 2 consist of a compact seven-wire body. Wherein the reinforcement 6 is preferably a glass reinforced thermoset plastic or Glass Reinforced Plastic (GRP).
In some embodiments, it is preferred here that the sheath layer of the central core 4 is an ultra high molecular weight PE sheath (UHMWPE sheath), given that the central core 4 is subjected to a relatively high compressive force. Correspondingly, the outer core 5 of the middle enhancer unit 1 may be made of an ultra-high molecular weight PE sleeve.
In some embodiments, it is also common to include an outer sheath 3, each of the reinforcing subunits 1 and each of the flexible subunits 2 being located within the outer sheath 3. Wherein the outer sheath 3 is typically a high density polyethylene sheath.
In some embodiments, at least one reinforcing subunit 1 and a plurality of soft subunits 2 may be surrounded on the outer side of the middle reinforcing subunit 1, so as to achieve a better reinforcing effect. The middle part can be particularly made the reinforcing subunit 1 outside closely surrounds three reinforcing subunits 1 and three soft subunits 2, and the middle part the three reinforcing subunits 1 and the three soft subunits 2 outside the reinforcing subunit 1 are alternately arranged, namely, the soft subunits 2 are arranged between two adjacent reinforcing subunits 1 outside. Wherein the enhancer unit 1 and the soft subunit 2 are of equal diameter so that the composition is compact.
In some embodiments, the outer sides of the middle reinforcing subunit 1 may be sequentially and tightly surrounded by six soft subunits 2, so as to further increase the number of fiber cores, so as to meet the requirement of the fiber core number for optical cables.
In some embodiments, a production process of the high-core number high-density air-blown lead-in optical cable is provided, wherein optical fibers are colored, 12 colored optical fibers are coated with 1.4mm micro-tubes, 6 12-core micro-tubes are cabled to complete a reinforcing subunit 1, 6 12-core PBT micro-tubes and UHMWPE (ultra-high molecular weight PE) central micro-tubes are cabled to complete a soft subunit 2, four reinforcing subunits 1 and three soft subunits 2 are secondarily assembled to complete a high-density cable core, and finally a nylon sheath with the thickness of 0.4mm is extruded.
The space occupied by a data machine room can be reduced, the utilization rate of a pipeline can be improved, the material cost of the optical cable is effectively reduced, the optical fiber density of the unit area of the optical cable is improved, the subunits can be laid through the air-blowing pipeline, the flexibility of the access distribution of the optical cable with large core number is improved, the optical fiber paste in the optical cable is less, the pollution of the machine room can be reduced, and the environment is friendly to use.
Compared with the existing large-core number layer-stranded ribbon optical cable, the utility model increases the space utilization rate of a data machine room and improves pipeline resources under the condition of not obviously reducing the core number of optical fibers, reduces the consumption of raw materials of the optical cable per kilometer, obviously improves the optical fiber density of the optical cable per unit area, and is from 1.33 cores/mm 2 (square millimeter) up to 3.83 core/mm 2 The method brings remarkable improvement of the optical fiber cost performance to the clients, and saves precious machine room space resources and pipeline resources for the clients.
In some embodiments, a high core count access cable is provided, 12 colored optical fibers are molded into a 1.4mm micro tube, 6 12 core micro tubes and GRP are cabled to form a reinforcing subunit 1, 7 12 core micro tubes are cabled to form a soft subunit 2, the reinforcing subunit 1 and six soft subunits 2 are cabled together twice to form a high density cable core, and finally an HDPE sheath with a thickness of 0.4mm is extruded, and the outer diameter of the cable is about 13.4mm.
The micro cable core 72 is used as a reinforcing subunit 1, the micro cable core 84 is used as a soft subunit 2, the reinforcing subunit 1 and the six soft subunits 2 are compounded into a 576-core high-density cable core through secondary assembly, and then the 0.4mm HDPE sheath is extruded, so that the outer diameter of the optical cable is only 13.4mm. Compared with the outer diameter of the optical cable, the outer diameter of the optical cable is reduced by 55%, the space occupancy rate of a machine room is improved, and the pipeline utilization rate is also saved. Meanwhile, the comprehensive manufacturing cost of the optical cable is reduced by 37%, and a new product selection can be provided for the construction of a user machine room. Because the dosage of the optical fiber paste of the miniature high-density access optical cable is small, the pollution of a machine room is reduced, and the use environment is more friendly. The soft subunit 2 cable core has the flexible fiber distribution characteristic, and facilitates the complex service access and the fiber management of a data machine room.
Under the condition of not reducing the core number of service optical fibers, the space of a data machine room is increased, the utilization rate of pipeline resources is improved, the consumption of raw materials of an optical cable per kilometer is reduced, the optical fiber density of the unit area of the optical cable is obviously improved, the optical fiber density is improved from 1.33 cores/mm < 2 > to 4.08 cores/mm < 2 >, the obvious improvement of the optical fiber cost performance is brought to customers, and meanwhile, precious machine room space resources and pipeline resources are saved for the customers, so that the optical fiber distribution is convenient to manage better.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A multi-core optical cable comprising at least one reinforcing subunit and a plurality of flexible subunits; one of the reinforcing subunits is positioned in the middle, and a plurality of the soft subunits are arranged around the reinforcing subunits positioned in the middle; the reinforcement subunit includes a reinforcement and a plurality of outer cores surrounding the reinforcement, and the soft subunit includes a central core and a plurality of outer cores surrounding the central core; the outer side of the middle reinforcing subunit is surrounded by at least one reinforcing subunit and a plurality of soft subunits.
2. The multi-core optical cable of claim 1, wherein the outer core and the middle core are each a jacketed unit comprising a jacket layer and twelve fiber units within the jacket layer.
3. The multi-core optical cable of claim 2, wherein the strength subunit comprises a strength member and six outer cores that in turn closely surround the strength member; the soft subunit comprises a middle fiber core and six outer fiber cores which are sequentially and tightly surrounded on the middle fiber core.
4. A multi-core optical cable according to claim 3, wherein the jacket layer of the central core is an ultra-high molecular weight PE jacket.
5. The multi-core fiber cable of claim 4, further comprising an outer jacket, each of the strength subunits and each of the flex subunits being located within the outer jacket.
6. The multi-core optical cable of claim 5, wherein the outer jacket is a high density polyethylene jacket.
7. The multi-core optical cable of any one of claims 1-6, wherein the outer side of the middle reinforcement subunit is closely surrounded by three reinforcement subunits and three flexible subunits, and the three reinforcement subunits and the three flexible subunits on the outer side of the middle reinforcement subunit are arranged alternately.
8. The multi-core optical cable of claim 7, wherein the outer sides of the central strength subunits closely surround six of the flexible subunits in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320271553.5U CN220019945U (en) | 2023-02-21 | 2023-02-21 | Multi-core optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320271553.5U CN220019945U (en) | 2023-02-21 | 2023-02-21 | Multi-core optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220019945U true CN220019945U (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320271553.5U Active CN220019945U (en) | 2023-02-21 | 2023-02-21 | Multi-core optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220019945U (en) |
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2023
- 2023-02-21 CN CN202320271553.5U patent/CN220019945U/en active Active
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