CN112466553A - Copper conductor with built-in optical fiber and preparation method thereof - Google Patents
Copper conductor with built-in optical fiber and preparation method thereof Download PDFInfo
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- CN112466553A CN112466553A CN202011308166.1A CN202011308166A CN112466553A CN 112466553 A CN112466553 A CN 112466553A CN 202011308166 A CN202011308166 A CN 202011308166A CN 112466553 A CN112466553 A CN 112466553A
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- optical fiber
- copper conductor
- copper
- insulating sheath
- fiber core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- Manufacturing & Machinery (AREA)
- Communication Cables (AREA)
Abstract
The invention discloses a copper conductor with a built-in optical fiber, which comprises a copper conductor and an optical fiber built in the copper conductor, wherein the copper conductor is formed by combining copper wires, and each copper wire comprises a copper wire and an insulating sheath I positioned on the outer side of the copper wire; the optical fiber comprises an optical fiber core and an insulating sheath II positioned on the outer side of the optical fiber core. According to the copper conductor with the built-in optical fiber, provided by the invention, signals such as temperature, pressure, partial discharge and the like can be effectively acquired through the combination of the sensing optical fiber and the copper conductor, and electromagnetic transmission can be realized.
Description
Technical Field
The invention relates to the technical field of wires and cables, in particular to a copper conductor with a built-in optical fiber and a preparation method thereof.
Background
In recent years, with the advance of urban planning and construction, the demand of cables for power distribution is getting larger and larger, how to fully and reasonably exert the transmission capability of the cables and how to accurately monitor the running state of the cables becomes an important subject of safe running of an urban power grid.
The existing photoelectric composite optical cable structure is that single-mode or multi-mode optical fibers are sleeved into a loose tube made of high-modulus polyester materials, optical fiber factice is filled in the loose tube, and one or more PVC insulated cables and the loose tube are added together to be added on an ERP reinforced core at the center to form a cable core. In public communication construction, the photoelectric composite optical cable can solve the problems of equipment power utilization and signal transmission, retains the characteristics of a common optical fiber cable and can meet the relevant standards of low-power transmission cables. However, the existing photoelectric composite optical cable has a complex structure and needs multiple layers of sheaths and insulating layers, so that the whole optical cable has high density and is not suitable for occasions needing portable cables.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a copper conductor with a built-in optical fiber and a preparation method thereof, which are used for realizing the on-line acquisition of signals by a sensing optical fiber and the realization of the electromagnetic energy transmission function of the copper conductor; and the copper conductor density can be reduced.
In order to achieve the purpose, the invention adopts the following technical scheme: a copper conductor with a built-in optical fiber comprises a copper conductor and an optical fiber built-in the copper conductor, wherein the copper conductor is formed by combining copper wires, and each copper wire comprises a copper wire and an insulating sheath I positioned on the outer side of the copper wire; the optical fiber comprises an optical fiber core and an insulating sheath II positioned on the outer side of the optical fiber core.
Furthermore, silicone resin is filled between the optical fiber core and the insulating sheath II.
Further, the number of the optical fiber cores in the optical fiber is more than or equal to 1.
Further, the number of copper wires in the copper conductor is more than or equal to 1.
A method for preparing the copper conductor comprises the following steps:
s01: sheathing an insulating sheath II on the outer part of the optical fiber core to form an optical fiber;
s02: a plurality of copper wires and optical fibers are stranded together to form a copper conductor.
Further, the step S01 further includes:
s011: sleeving an insulating sheath II on the outer part of the optical fiber core, wherein the inner diameter of the insulating sheath II is larger than the outer diameter of the optical fiber core;
s012: adding water to the organosilane mixture in an organic solvent for decomposition to obtain an acidic hydrolysate;
s013: and washing the acidic hydrolysate with water to remove acid, filling the acidic hydrolysate into an insulating sheath II containing the optical fiber core, and adding a catalyst to form silicone resin between the insulating sheath II and the optical fiber core.
Further, the organosilane mixture in step S012 includes one or more of methyltrichlorosilane, dimethyldichlorosilane, phenyltrichlorosilane, and methylphenyldichlorosilane.
Further, the organic solvent in step S012 is toluene.
Further, in step S02, a plurality of copper wires and optical fibers are stranded together in a pressing or non-pressing manner.
The invention has the following beneficial effects: according to the invention, signals such as temperature, pressure, partial discharge and the like can be effectively obtained through the combination of the sensing optical fiber and the copper conductor, and electromagnetic transmission can be realized; according to the invention, the optical fiber is creatively nested in the copper conductor, and the silicon resin is filled between the optical fiber and the insulating sheath II, so that the isolation between the optical fiber and the copper conductor is effectively realized by utilizing the beneficial thermal oxidation stability and electrical insulating property of the silicon resin, and the silicon resin has light weight and large elasticity compared with the insulating sheath II, and ensures that the optical fiber is not abraded by the insulating sheath II in the moving and transporting process; the service life of the whole copper conductor is prolonged.
Drawings
FIG. 1 is a copper conductor with an optical fiber built in according to the present invention;
FIG. 2 is a schematic cross-sectional view of an optical fiber according to the present invention.
1 copper conductor, 2 optical fibers, 21 optical fiber cores, 22 silicone and 23 insulating sheaths II.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
referring to fig. 1, the copper conductor with built-in optical fiber of the present invention includes a copper conductor and an optical fiber 2 built in the copper conductor, and it is noted that: the main structure of the invention is a copper conductor which is used for realizing the power transmission function, and meanwhile, the optical fiber which is used for realizing the signal acquisition function is creatively nested in the copper conductor which is used for realizing the power transmission function.
The copper conductor in the present invention may be any type of copper conductor, and as a preferred embodiment, the copper conductor may be formed by combining a plurality of copper wires 1, and the number of the copper wires may be determined according to the final application and the transmission target to be achieved. Each copper wire comprises a copper wire and an insulating sheath I positioned on the outer side of the copper wire; the insulating sheath I is made of a flexible resin material with good insulating property, so that the copper guide wire in the insulating sheath I is prevented from being abraded in the transportation or use process while being isolated; meanwhile, the quality of the whole copper conductor can be reduced, and the application range of the copper conductor is expanded.
As shown in fig. 2, the optical fiber 2 of the present invention includes an optical fiber core 21 and an insulating sheath ii 23 located outside the optical fiber core, and preferably, silicone is filled between the optical fiber core and the insulating sheath ii. The silicone resin belongs to a two-component addition type room temperature vulcanized silicone rubber, is a polyorganosiloxane with a highly cross-linked Wangzhuang structure, one of the most outstanding performances of the silicone resin is thermal oxidation stability, and the other outstanding performance of the silicone resin is excellent electrical insulation performance, and the silicone resin can keep good insulation performance in a wide temperature and frequency range.
The number of optical fiber cores in the optical fiber is more than or equal to 1, and the number of optical fibers embedded in the copper conductor is more than or equal to 1. The number of optical fibers in the copper conductor and the number of optical fiber cores in the optical fiber can be adaptively set according to the application and the transmission purpose.
A method for preparing the copper conductor comprises the following steps:
s01: sheathing an insulating sheath II on the outer part of the optical fiber core to form an optical fiber; the method specifically comprises the following steps:
s011: sleeving an insulating sheath II on the outer part of the optical fiber core, wherein the inner diameter of the insulating sheath II is larger than the outer diameter of the optical fiber core; the reason is that when the optical fiber core is sleeved into the insulating sheath II, the diameter of the optical fiber core and the diameter of the insulating sheath II are kept to be larger or smaller, so that the optical fiber core can be ensured to smoothly enter the insulating sheath II. A certain gap exists between the optical fiber core and the insulating sheath II after nesting, if the gap cannot be filled, the optical fiber can shake in the process of transmission or normal working of the optical fiber, so that abrasion occurs between the optical fiber and the insulating sheath II, and the performance of the optical fiber is affected. Therefore, the present invention inventively fills the gap with silicone.
S012: adding water to the organosilane mixture in an organic solvent for decomposition to obtain an acidic hydrolysate. The initial product of hydrolysis of the silane mixture in the presence of an organic solvent is a mixture of cyclic, linear and crosslinked polymers, which typically also contain considerable carboxyl groups. The hydrolysate was in solution and was free-flowing.
Preferably, the organosilane mixture comprises one or more of methyltrichlorosilane, dimethyldichlorosilane, phenyltrichlorosilane, and methylphenyldichlorosilane. The organic solvent is toluene.
S013: and washing the acid hydrolysate with water to remove acid, filling the acid hydrolysate into an insulating sheath II containing the optical fiber core, and adding a catalyst to form silicone resin between the insulating sheath II and the optical fiber core. The acidic hydrolysate obtained in the step is in a liquid state, and is kept in the liquid state in a short time after being washed to remove acid, at the moment, the hydrolysate which is washed to remove acid is filled into an insulating sheath II, and a neutral primary polymer entering the inside of the insulating sheath II is further subjected to polycondensation in the presence of a catalyst to finally form a highly-crosslinked three-dimensional network structure; the catalyst in the present invention may be any catalyst used in the prior art for forming silicone resins, such as platinum group catalysts.
Note that: at least one end of the insulating sheath II is provided with a sealing device, so that hydrolysate filled into the insulating sheath II can not leak. In practical application, a sealing device can be arranged at one end of the insulating sheath II, hydrolysate and a catalyst after deacidification are filled from the other end, and the end without the sealing device is kept higher than the end with the sealing device; after standing for 24 hours at room temperature, the silicone resin can be obtained.
S02: a plurality of copper conductors and optical fibers are stranded together in a compacted or non-compacted manner to form a copper conductor.
According to the invention, signals such as temperature, pressure, partial discharge and the like can be effectively obtained through the combination of the sensing optical fiber and the copper conductor, and electromagnetic transmission can be realized; according to the invention, the optical fiber is creatively nested in the copper conductor, and the silicon resin is filled between the optical fiber and the insulating sheath II, so that the isolation between the optical fiber and the copper conductor is effectively realized by utilizing the beneficial thermal oxidation stability and electrical insulating property of the silicon resin, and the silicon resin has light weight and large elasticity compared with the insulating sheath II, and ensures that the optical fiber is not abraded by the insulating sheath II in the moving and transporting process; the service life of the whole copper conductor is prolonged.
Various other changes and modifications to the above-described embodiments and concepts will become apparent to those skilled in the art from the above description, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (9)
1. The copper conductor with the built-in optical fiber is characterized by comprising a copper conductor and the optical fiber built in the copper conductor, wherein the copper conductor is formed by combining copper wires, and each copper wire comprises a copper wire and an insulating sheath I positioned on the outer side of the copper wire; the optical fiber comprises an optical fiber core and an insulating sheath II positioned on the outer side of the optical fiber core.
2. The copper conductor of claim 1, wherein silicone is filled between said optical fiber core and said insulating sheath II.
3. The copper conductor of claim 2, wherein the number of optical cores in said optical fiber is 1 or more.
4. The copper conductor for an embedded optical fiber according to claim 1, wherein the number of copper wires in the copper conductor is 1 or more.
5. A method of making the copper conductor of claim 1, comprising the steps of:
s01: sheathing an insulating sheath II on the outer part of the optical fiber core to form an optical fiber;
s02: a plurality of copper wires and optical fibers are stranded together to form a copper conductor.
6. The method of claim 5, wherein the step S01 further comprises:
s011: sleeving an insulating sheath II on the outer part of the optical fiber core, wherein the inner diameter of the insulating sheath II is larger than the outer diameter of the optical fiber core;
s012: adding water to the organosilane mixture in an organic solvent for decomposition to obtain an acidic hydrolysate;
s013: and washing the acidic hydrolysate with water to remove acid, filling the acidic hydrolysate into an insulating sheath II containing the optical fiber core, and adding a catalyst to form silicone resin between the insulating sheath II and the optical fiber core.
7. The method of claim 6, wherein the organosilane mixture in step S012 comprises one or more of methyltrichlorosilane, dimethyldichlorosilane, phenyltrichlorosilane, and methylphenyldichlorosilane.
8. The method of claim 6, wherein the organic solvent in step S012 is toluene.
9. The method of claim 5, wherein the step S02 is performed by twisting the plurality of copper wires and the optical fibers together in a pressing or non-pressing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011308166.1A CN112466553A (en) | 2020-11-19 | 2020-11-19 | Copper conductor with built-in optical fiber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011308166.1A CN112466553A (en) | 2020-11-19 | 2020-11-19 | Copper conductor with built-in optical fiber and preparation method thereof |
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| CN112466553A true CN112466553A (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011308166.1A Pending CN112466553A (en) | 2020-11-19 | 2020-11-19 | Copper conductor with built-in optical fiber and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306522A (en) * | 2011-06-30 | 2012-01-04 | 河南科信电缆有限公司 | Reinforced high-temperature resistant optical fiber composite overhead insulating cable |
| CN202473366U (en) * | 2012-03-05 | 2012-10-03 | 江苏宏图高科技股份有限公司 | Fireproof optical fiber composite low-voltage cable |
| CN202512940U (en) * | 2012-04-20 | 2012-10-31 | 河南科信电缆有限公司 | Composite photoelectric carbon-fiber lead |
| CN105555873A (en) * | 2013-08-20 | 2016-05-04 | 住友精化株式会社 | Condensation-curable silicone resin composition, cured product of condensation-curable silicone resin, and optical semiconductor element sealing body |
| CN106366315A (en) * | 2016-08-31 | 2017-02-01 | 湖北新四海化工股份有限公司 | Powder silicon resin and preparation method thereof |
| CN109273164A (en) * | 2018-09-07 | 2019-01-25 | 河南讯达电缆有限公司 | High-temperature resistant optical fiber composite power cable |
-
2020
- 2020-11-19 CN CN202011308166.1A patent/CN112466553A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306522A (en) * | 2011-06-30 | 2012-01-04 | 河南科信电缆有限公司 | Reinforced high-temperature resistant optical fiber composite overhead insulating cable |
| CN202473366U (en) * | 2012-03-05 | 2012-10-03 | 江苏宏图高科技股份有限公司 | Fireproof optical fiber composite low-voltage cable |
| CN202512940U (en) * | 2012-04-20 | 2012-10-31 | 河南科信电缆有限公司 | Composite photoelectric carbon-fiber lead |
| CN105555873A (en) * | 2013-08-20 | 2016-05-04 | 住友精化株式会社 | Condensation-curable silicone resin composition, cured product of condensation-curable silicone resin, and optical semiconductor element sealing body |
| CN106366315A (en) * | 2016-08-31 | 2017-02-01 | 湖北新四海化工股份有限公司 | Powder silicon resin and preparation method thereof |
| CN109273164A (en) * | 2018-09-07 | 2019-01-25 | 河南讯达电缆有限公司 | High-temperature resistant optical fiber composite power cable |
Non-Patent Citations (2)
| Title |
|---|
| 吴森纪编著: "《有机硅及其应用》", 31 May 1990 * |
| 陈路主编: "《广播电视网络设备安装调试、运行检测技术与故障诊断维修规范实用手册 上》", 30 April 2003 * |
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Application publication date: 20210309 |
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