CS265319B1 - A method of manufacturing a clutch for bonding single-fiber optical cables - Google Patents

A method of manufacturing a clutch for bonding single-fiber optical cables Download PDF

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Publication number
CS265319B1
CS265319B1 CS874956A CS495687A CS265319B1 CS 265319 B1 CS265319 B1 CS 265319B1 CS 874956 A CS874956 A CS 874956A CS 495687 A CS495687 A CS 495687A CS 265319 B1 CS265319 B1 CS 265319B1
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CS
Czechoslovakia
Prior art keywords
manufacturing
joint
shrinkable polyethylene
cable
welding
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CS874956A
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Czech (cs)
Slovak (sk)
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CS495687A1 (en
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Milan Ing Plavak
Iveta Ing Petrikova
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Milan Ing Plavak
Iveta Ing Petrikova
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Priority to CS874956A priority Critical patent/CS265319B1/en
Publication of CS495687A1 publication Critical patent/CS495687A1/en
Publication of CS265319B1 publication Critical patent/CS265319B1/en

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Abstract

Navrhované riešenie možno využit v elektrotechnickom priemysle. Rieši spósob výroby pevné spojky pre spájanie jednovláknových optických káblov, ktorého výhodou je jednoduchá montáž, dokonalé hermeticky a mechanicky chráněné miesto spoja a zníženie přechodového tlmenia. Po zvarení obnažených optických vlákien kábla sa miesto zvaru najprv pokryje silikonovou vrstvou. Na upravený spoj sa navlečie zmraštitelná polyetylénová rúrka, ktorá sa zmraští pri teplote minimálně 100 °C. Na takto vytvořený hermetický spoj sa navlečie ocelová spevňovacia rúrka, nalisované na oboch koncoch kábla a následné sa vytvoří vonkajší obal zo zmraštitelnej polyetylénovéj rúrky.The proposed solution can be used in the electrical industry. It solves the problem of manufacturing a fixed connector for connecting single-fiber optical cables, the advantage of which is simple assembly, a perfectly hermetically and mechanically protected joint point and reduced transition attenuation. After welding the exposed optical fibers of the cable, the welding point is first covered with a silicone layer. A shrinkable polyethylene tube is put on the prepared joint, which is shrunk at a temperature of at least 100 °C. A steel reinforcing tube is put on the hermetic joint thus formed, pressed on both ends of the cable and then an outer casing is created from a shrinkable polyethylene tube.

Description

Vynález sa týká spósobu výroby spojky pre spájanie jednovláknových optických káblov.BACKGROUND OF THE INVENTION The present invention relates to a method of manufacturing a connector for bonding single-stranded fiber optic cables.

Doteraz známe spósoby riešia spájanie optických káblov pomocou pevných alebo rozoberatelných spojok. Rozoberatelné spájanie optických káblov je realizované pomocou optických konektorov.So far known methods solve the splicing of optical cables with fixed or detachable couplings. Detachable splicing of optical cables is made using optical connectors.

Ich nevýhodou je náročnost výroby a montáže, a tým aj vysoká cena. Montáž konektorov vyžaduje špeciálne zariadenie a vo vSčšine prípadov ho musí zabezpečit výrobca. Pri druhom spósobe výroby spojok sa optické vlákna spájajú pevne zváraním alebo lepením. Nevýhodou týchto spojok je,še sú určené pre viacvláknové optické káble priemeru 8 až 20 mm, a teda sú poměrně rozměrné, nakolko je nutné uložit v nich potřebné rezervy vlákien, ktoré predstavujú 1 až 1,5 m z každej strany. Prespájanie jednovláknových optických káblov je použitie týchto spojok značné neekonomické a neúčelné vzhladom na ich priemer, ktorý je 2,5 až 4,5 mm.Their disadvantage is the difficulty of production and assembly, and thus the high price. The installation of connectors requires special equipment and in most cases must be provided by the manufacturer. In the second method of manufacturing the couplings, the optical fibers are bonded firmly by welding or gluing. The drawback of these couplings is that they are designed for multi-fiber optical cables of 8 to 20 mm in diameter and thus are relatively bulky, as the necessary fiber reserves are required, which are 1 to 1.5 m from each side. Connecting single-stranded fiber-optic cables makes the use of these couplings considerably uneconomical and inefficient with respect to their diameter of 2.5 to 4.5 mm.

Uvedené nevýhody doterajšieho stavu odstraňuje riešenie podía vynálezu, ktorého podstata spočívá v tom, že miesto zvaru sa po zvareni vlákien najprv pokryje silikonovou vrstvou, potom sa na upravený spoj navlečie zmraštitelná polyetylénová rúrka, ktorá sa zmrašti pri teplote minimálně 100 °C a na takto vytvořený hermetický spoj sa navlečie ocelová spevňovacia rúrka, ktorej konce sa nalisujú na spájaný kábel a následné sa vytvoří vonkajší obal zo zmraštiteínej polyetylénovéj rúrky, ktorá sa taktiež zmrašti pri teplote minimálně 100 °C.The aforementioned disadvantages of the prior art are eliminated by the solution according to the invention, which is based on the fact that after the welding of the filaments, the silicone layer is first covered, then a shrinkable polyethylene tube is threaded onto the modified joint, which is frozen at a temperature of at least 100 ° C and so formed a hermetic joint is threaded through a steel reinforcing tube, the ends of which are pressed onto the bonded cable and subsequently an outer shell of a shrinkable polyethylene tube is formed, which is also frozen at a temperature of at least 100 ° C.

Riešenie spósobu výroby spojky pre spájanie jednovláknových optických káblov podía vynálezu má výhody v tom, že sa ňou vylúči komplikovaná a náročná montáž konektorov, pričom sa dosiahne nižšie přechodové tlmenie. Tým, že sa vlákno zvarí pomocou vhodného zariadenia a obnovia sa ochranné a spevňovacie prvky sa zabezpečia dokonale hermeticky a mechanicky chráněné miesta spoja. V případe požiadavky nerozoberatelnosti spoja je vzhladom na nižšie přechodové tlmenie dokonalejšou náhradou za spoj pomocou optických konektorov.The solution to the method for producing a single fiber optic cable splice according to the invention has the advantage that it eliminates complicated and demanding assembly of the connectors while achieving a lower transient damping. By welding the fiber with a suitable device and restoring the protective and reinforcing elements, the joints are perfectly hermetically and mechanically protected. In the case of a non-detachable joint requirement, due to the lower transition damping, it is a better replacement for the joint with optical connectors.

Podstata riešenia je 3alej dokumentovaná v konkrétnom přiklade vyhotovenia. Jednovláknové optické vlákna sa upravili tak, že na dížke 30 mm od konca sa odstránil plášt a nosné spevňovacie prvky a na dížke 12 mm sa odstránila sekundárná a primárná ochrana. Na jeden zo spájaných káblov sa navliekla vonkajšia teplom zmraštitelná PE rúrka, ocelová rúrka a vnútorná teplom zmraštitelná polyetylénová rúrka. Spájané káble sa upevnili do zvarovacieho zariadenia a zvarili sa optické vlákna. Na zvarené miesto sa naniesla silikonová vrstva slúžiaca ako obnova primárnej ochrany. Potom sa na toto miesto přesunula vnútorná ochranná teplom zmraštitelná polyetylénová rúrka, ktorá sa plameňom zmraštila. Ocelová spevňovacia rúrka, ktorá sa přesunula tak, aby zachytávala oba spájané káble, mala vnútorný priemer o 0,2 mm vačší ako je vonkajší priemer spájaného optického kábla. Po navlečení sa oba konce ocelověj rúrky nalisovali lisovacími kliešťami na spájané konce káblov. Nakoniec sa navliekla vonkajšia ochranná teplom zmraštitelná polyetylénová rúrka a zmraštila sa plameňom.The essence of the solution is further documented in the specific embodiment. The single-stranded optical fibers were adjusted so that the jacket was removed on a 30 mm length from the end and the support reinforcement elements and secondary and primary protection removed on a 12 mm length. An outer heat shrinkable PE tube, a steel tube and an internal heat-shrinkable polyethylene tube were threaded onto one of the cables to be joined. The bonded cables were fixed to the welding machine and the optical fibers were welded. A silicone layer to restore primary protection was applied to the welded spot. Then, an internal heat-shrinkable polyethylene tube that shrinked with flame moved to this place. The steel reinforcing tube that was moved to catch both of the spliced cables had an internal diameter of 0.2 mm greater than the outer diameter of the spliced optical cable. After insertion, the two ends of the steel tube were pressed with crimping pliers onto the cable ends to be joined. Finally, the outer heat-shrinkable polyethylene tube was threaded and the flame shrunk.

Riešenie podlá vynálezu možno využiť v elektrotechnike pri budovaní lokálnych sietí s optickými káblami, připadne pri opravě náhodného prerušenia už existujúcich lokálnych sieti.The solution according to the invention can be used in electrical engineering for building local networks with optical cables, possibly in the repair of accidental interruption of existing local networks.

Claims (1)

PREDMET VYNÁLEZU Spósob výroby spojky pre spájanie jednovláknových optických káblov so zvarenými jadrami tvořenými optickými vláknami, vyznačujúci sa tým, že miesto zvaru sa po zvareni vlákien najprv pokryje silikonovou vrstvou, potom sa na upravený spoj navlečie zmraštitelná polyetylénová rúrka, ktorá sa zmrašti pri teplote minimálně 100 °C a na takto vytvořený hermetický spoj sa navlečie ocelová spevňovacia rúrka, ktorej konce sa nalisujú na spájaný kábel a následné sa vytvoří vonkajší obal zo zmraštiteínej polyetylénovéj rúrky, ktorá sa taktiež zmrašti pri teplote minimálně 100 °C.OBJECT OF THE INVENTION A method of manufacturing a clutch for bonding single-stranded fiber optic cables to welded optical fiber cores, characterized in that the weld spot is first covered with a silicone layer after welding the fibers, then a shrinkable polyethylene tube is threaded onto the bonded joint to shrink at a minimum of 100 ° C. A steel reinforcing pipe is threaded onto the hermetic connection thus formed, the ends of which are pressed onto the bonded cable and subsequently an outer shell of a shrinkable polyethylene pipe is formed, which also freezes at a temperature of at least 100 ° C.
CS874956A 1987-07-01 1987-07-01 A method of manufacturing a clutch for bonding single-fiber optical cables CS265319B1 (en)

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CS874956A CS265319B1 (en) 1987-07-01 1987-07-01 A method of manufacturing a clutch for bonding single-fiber optical cables

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Application Number Priority Date Filing Date Title
CS874956A CS265319B1 (en) 1987-07-01 1987-07-01 A method of manufacturing a clutch for bonding single-fiber optical cables

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CS495687A1 CS495687A1 (en) 1989-01-12
CS265319B1 true CS265319B1 (en) 1989-10-13

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