CN101887153B - Preassembled cable and manufacturing method thereof - Google Patents
Preassembled cable and manufacturing method thereof Download PDFInfo
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- CN101887153B CN101887153B CN 201010111685 CN201010111685A CN101887153B CN 101887153 B CN101887153 B CN 101887153B CN 201010111685 CN201010111685 CN 201010111685 CN 201010111685 A CN201010111685 A CN 201010111685A CN 101887153 B CN101887153 B CN 101887153B
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Abstract
The invention discloses a preassembled cable and a manufacturing method thereof. The cable comprises a vertical cable and at least one bond cable (12) bifurcated from the vertical cable, wherein the vertical cable comprises a cable sheath (13), a bifurcation adaptor (15) and at least two midspan insertion positions (20); the cable sheath (13) surrounds a plurality of fiber bundles (14); each fiber bundle comprises a buffer tube surrounding a plurality of individual optical fibers; the bifurcation adaptor (15) is arranged at one end of the vertical cable, and bifurcates the individual optical fibers from the vertical cable, so that each of the individual optical fibers (17) of the vertical cable is surrounded by individual protective tubes (18) and can be connected to the optical fibers of an optical distribution cable; at least one bond cable (12) is bifurcated from the vertical cable in the area of at least one of the midspan insertion positions; each bond cable comprises an individual unassembled optical fiber (23) of an unassembled fiber bundle (14) of the vertical cable; and each individual unassembled optical fiber is surrounded by the individual protective tubes (24) and can be connected to the optical fibers of the branch cables. The preassembled cable and the manufacturing method thereof reduce the total assembly cost of the cable.
Description
Technical field
The present invention relates to preassembled cable, relate in particular to pre-assembled type inside cable.In addition, the present invention relates to make the method for preassembled cable.
Background technology
In the society that the needs to broadband width increase day by day, optical cable has become the major part of communication network.Optical cable can be very high speed voice signal, data-signal and vision signal are transmitted very long distance.The development of optical telecommunications network makes the terminal user can be directly connected to optical fiber.The such network technology that is known as FTTH technology (fiber-to-the-home) needs to extend " all light " communication network more near the user.Therefore, these communication networks comprise a large amount of from the optical distribution cable to terminal user or user's distribution point.
One of major part of FTTH network is last mile connection that is generally indoor installation.Dissimilar buildingss such as multitenant unit and apartment need complicated laying optical cable system, this means the optical cable that is separated by many, and each optical cable connects a user.Between main distribution point (being usually located at another position of basement or buildings) and terminal user, provide being installed in when passing wall or floor laying of many optical cables of connection possibly cause many problems.Therefore, such installation labor time and cost.
Between main distribution point and terminal user or user, provide the other type of connection to use the optical cable that comprises vertical cable, vertical cable has the heaving pile of bifurcated, and vertical cable is connected to main distribution point through optical distribution cable by this, and heaving pile is connected to the terminal user through branched cable.
Usually, span into for providing from the heaving pile of vertical cable bifurcated, the field technician of high degree of skill must be at the scene at a cable jacket removing vertical cable along the certain position place of vertical cable.In addition, must cut specific, the preselected optical fibers in the vertical cable and remove its some length.The optical fiber of removing some length of vertical cable must be connected with the fiber optic, light of heaving pile.This accomplishes through use standard joint method or field-installable connector.This process is carried out under the condition of work usually at the scene.This shows that fully installation process must be by personnel's completion of high degree of skill.This has increased the total cost of installing more.
For reducing the total cost of installing, some preassembled cables have been developed.Such preassembled cable is known from EP 0 509 299 B1.Such preassembled cable has been practiced thrift installation cost on the one hand, also makes manufacture process more complicated but then.In order not only to reduce manufacturing cost but also reduce installation cost, the preassembled cable that is easy to make there are still unsolved needs.
Summary of the invention
On the basis of background technology, target of the present invention is to provide new being easy to make and easy-to-install preassembled cable is made and installation cost to reduce.
The method of the manufacturing preassembled cable that another target of the present invention is to provide new.
Preassembled cable according to the present invention comprises vertical cable and from least one heaving pile of vertical cable bifurcated; Wherein vertical cable comprises: surround the cable jacket of a plurality of fibre bundles, wherein each fibre bundle comprises the separator tube that surrounds many independent optical fiber; Be installed to the bifurcated breakout box of vertical cable one end, the bifurcated breakout box is told the independent optical fiber of vertical cable in the following manner: each optical fiber in the independent optical fiber of vertical cable can be connected to the optical fiber of optical distribution cable by each optical fiber in the independent optical fiber of separately protected pipe encirclement and vertical cable; And span into the position at least two, wherein in these, span at least one the zone in the position at least one heaving pile from the vertical cable bifurcated; And wherein each heaving pile comprises: the fiber optic splicing not separately of fiber optic splicing bundle not of vertical cable, and each independent optical fiber is surrounded by separately protected pipe, and wherein each independent optical fiber can be connected to the optical fiber of branched cable.
The present invention provides the preassembled cable as the major part of the wiring system in the buildings.Span into the position because single fiber optic cable has along vertical cable in a plurality of, it can provide direct connection between the main distribution point of network and the many different users at the difference place of buildings.
The heaving pile that in vertical cable, spans into the position bifurcated is arranged connecting the optical fiber of branched cable, thereby light signal is provided to different user.
Heaving pile comprises the not fiber optic splicing bundle of vertical cable, and this enables to make easily and apace according to optical cable of the present invention.
Preassembled cable according to the present invention is made up of two parts, i.e. vertical cable and at least one bifurcated heaving pile.That end of the installation bifurcated breakout box of vertical cable is that the optical fiber of vertical cable is that side of independent optical fiber in its punishment, and each independent optical fiber is by separately protected protection of pipe.At this end, all optical fiber are all punished out at the single bifurcation that the bifurcated breakout box provides.The make of this end of optical cable guarantees that preassembled cable can easily be connected to the optical distribution cable of the main distribution point that is positioned at basement or buildings opposite side.During being included in, another part of preassembled cable spans at least one heaving pile of position, with the connection of at least one optical fiber of being provided to branched cable from the vertical cable bifurcated.Each heaving pile is configured to can be attached to main push-towing rope without any need for engaging process.
The present invention provides and comprises the optical cable that spans into position and at least one heaving pile at least one, and at least one heaving pile is used to insert at least one branched cable.The end of heaving pile can reach the branched cable that is connected to preparatory connecting connector easily at the preparatory connecting connector of factory; But in addition, heaving pile can not have the joints of optical fibre yet, and the optical fiber of heaving pile can directly engage with the optical fiber of branched cable.
It should be noted that in single, spanning into the position can construct an above heaving pile, thereby help to increase the total quantity of optical fiber and then enable to connect the more users of buildings with layer.Optical cable according to the present invention makes installation process much easier.According to optical cable of the present invention is complete pre-assembled type.
It is consuming time with engaging between the vertical cable optical fiber of middle cross-location access that the mode of assembling optical cable helps avoid heaving pile optical fiber.
The present invention provides and comprises vertical cable and from the manufacturing approach of the preassembled cable of at least one heaving pile of vertical cable bifurcated.
The inventive method comprises the steps: to provide the vertical cable that comprises the cable jacket that surrounds a plurality of fibre bundles at least, and wherein each fibre bundle comprises the separator tube that surrounds multifiber; The bifurcated breakout box is installed to that end of telling independent optical fiber of vertical cable, and the independent optical fiber of vertical cable is told in the following manner: the independent optical fiber of each of vertical cable is surrounded by separately protected pipe, and each independent optical fiber of vertical cable can be connected to the optical fiber of optical distribution cable; Thereby the cable jacket of in the zone of two positions of vertical cable, opening vertical cable at least provides among two of vertical cable span into the position at least, with the fibre bundle near vertical cable; In first, span at least one fibre bundle of position cutting vertical cable and pass and span into the position in second and pull out the cut end of (each) cutting optical fibre bundle and spur not that the independent optical fiber of not joint of fiber optic splicing bundle passes separately protected pipe.
Description of drawings
The preferred embodiments of the present invention are described below.Exemplary embodiment will combine accompanying drawing to illustrate in greater detail, wherein:
Fig. 1 is the synoptic diagram according to preassembled cable of the present invention.
Fig. 2 shows the details of the preassembled cable of Fig. 1.
Fig. 3 shows a step of the manufacturing approach of preassembled cable.
Fig. 4 shows another step of the manufacturing approach of preassembled cable.
Fig. 5 shows another step of the manufacturing approach of preassembled cable.
Embodiment
Fig. 1 shows the synoptic diagram according to the preferred embodiment of preassembled cable 10 of the present invention.Preassembled cable 10 comprises vertical cable 11 and from least one heaving pile 12 of vertical cable 11 bifurcateds.According to the embodiment of Fig. 1, preassembled cable 10 comprises five heaving piles 12.
The independent optical fiber 17 of vertical cable 11 preferably is connected to the joints of optical fibre 19 each independent optical fiber 17 of vertical cable 11 is connected to the optical fiber of the optical distribution cable of main distribution point.
According to the embodiment of Fig. 1, preassembled cable 10 comprises in five and spans into the position, wherein in each, spans into 20 places, position from heaving pile 12 of vertical cable 11 bifurcateds.
Each heaving pile 12 of preassembled cable 10 comprises a fiber optic splicing bundle 14 not that is surrounded by protection tube 21 of vertical cable 11.
Bifurcated breakout box 22 (see figure 2)s are installed to each heaving pile 12; Bifurcated breakout box 22 is told the independent optical fiber 23 of each heaving pile 12 in the following manner: the independent optical fiber 23 of each of each heaving pile 12 is surrounded by separately protected pipe 24, and each independent optical fiber 23 of each heaving pile 12 can be connected to the optical fiber of branched cable.
Thereby the independent optical fiber 23 of each heaving pile 12 preferably is connected to the joints of optical fibre 25 and is connected to user or terminal user with the optical fiber that each the independent optical fiber with each heaving pile 12 is connected to branched cable.
In order to make preassembled cable as shown in fig. 1, at first step vertical cable 11 is provided, this vertical cable 11 comprises the cable jacket 13 that surrounds a plurality of fibre bundles 14, wherein each fibre bundle 14 comprises the separator tube that surrounds many independent optical fiber.
In second step; Bifurcated breakout box 15 is installed to an end 16 of vertical cable 11; Bifurcated breakout box 15 is told the independent optical fiber 17 of vertical cable 11 in the following manner: the independent optical fiber 17 of each of vertical cable 11 is surrounded by separately protected pipe 18, and each independent optical fiber 17 of vertical cable 11 can be connected to the optical fiber of optical distribution cable.
Preferably, the independent optical fiber 17 of vertical cable 11 is connected to the joints of optical fibre 19 each independent optical fiber 17 of vertical cable 11 is connected to the optical fiber of optical distribution cable.
At third step, in span in the zone of position 20 from vertical cable 11 bifurcated heaving piles 12.This realizes through following process: in span into open vertical cable 11 in the zone of position 20 (referring to Fig. 3,4) cable jacket 13 with fibre bundle 14 (referring to Fig. 4) near vertical cable 11; In span into position 20 primary importance cutting vertical cable 11 at least one fibre bundle 14 and pass in span into position 20 the second place pull out the cut end (referring to Fig. 5) of (each) cutting optical fibre bundle 14 and spur each cutting optical fibre bundle 14 and pass protection tube 21 thus heaving pile 12 is provided.
When in vertical cable 11 produces, spanning into position 20, must open cable jacket 13 (see figure 3)s.The length L 1 of cutting cable jacket 13 is preferably 5cm.After cutting cable jacket 13, the exposure fibre bundle 14 thereby cable jacket is opened.For guaranteeing that cable jacket 13 will open easily, apply the hot blast that preferably has 150 ℃ of temperature.This helps to open cable jacket 13.
When the fibre bundle 14 of vertical cable 11 is surrounded by the tubular body 26 (seeing Fig. 3,4,5) of vertical cable 11, must open tubular body 26 to enable near fibre bundle 14.The length L 2 of removing of the tubular body 26 of vertical cable 11 is preferably 3cm.This enables near fibre bundle 14.
It should be noted that the invention is not restricted to vertical cable 11 has the tubular body 26 that surrounds fibre bundle 14.According to Fig. 3-5, Kevlar (kevlar) yarn 28 is between tubular body 26 and cable jacket 13.
Can therefrom span into before position 20 pulls out at the suitable length of fibre bundle 14, must span into 20 places, position in adjacent and cut corresponding fibre bundle 14 isolated along vertical cable 11.Span into the length of the heaving pile that distance between the position 20 should equal to provide in adjacent.This vary in length is generally 2 or 3 meters.
Pulling out the process of fibre bundle 14 from vertical cable 11 can use any little non-sharp members 27 as a working of plastics to carry out to avoid damaging the optical fiber (see figure 5) in the fibre bundle 14.When fibre bundle 14 when vertical cable 11 is pulled out selected length, fibre bundle 14 (comprising independent optical fiber 23) passes protection tube 21 and moves the point that tubular body 26 has been removed to.Opening at the point protection fibre bundle 14 of opening tubular body 26 and sealed tubular body 26 applies silicon materials.Afterwards, come self protected tube 21 Kevlar on tubular body 26, evenly to launch and be glued on the tubular body.Afterwards, apply a small amount of liquid-state silicon material once more.For better protection, also bonding on the opening of tubular body 26 by the ring set that flexible pipe is processed.Afterwards, apply silicon liquid in the whole length of the opening of cable jacket 13 once more.For spanning into position 20 in the protection, spiral parcel can around in span into around the position 20.Collapsible tube is collapsible to be superscribed at spiral.
In the 4th step; Thereby bifurcated breakout box 22 is installed to the independent optical fiber 23 that each heaving pile 12 is told each heaving pile 12 in the following manner: the independent optical fiber 23 of each of each heaving pile 12 is surrounded by separately protected pipe 24, and each independent optical fiber 23 of each heaving pile 12 can be connected to the optical fiber of branched cable.Preferably, the independent optical fiber 23 of each heaving pile 12 is connected to the joints of optical fibre 25 each independent optical fiber of each heaving pile 12 is connected to the optical fiber of branched cable.
For obtaining the bifurcation of good protection in the zone that is installed to each heaving pile 12 at bifurcated breakout box 22, the separator tube of fibre bundle 14 begins to remove the end up to heaving pile 12 from this point.Afterwards, apply the silicone tube that is known as transition piece.Silicone tube is enclosed within on the naked fibre, makes the predetermined length of protection tube 21 insert the smaller side of silicone tube.For protecting independent optical fiber 23, separately protected pipe 24 is provided.For they are condensed together, use little heat shrink.The quantity of the optical fiber that the quantity of separately protected pipe 24 equals to protect.Each independent optical fiber 23 slips into the larger side of the end insertion silicone tube of separately protected pipe 24 and last whole fibre bundle.Come self protected tube 21 Kevlar around transition piece, evenly to launch also gluing with it.Another heat shrink is slided above bifurcation 22 and is shunk.
Exist another in span into the method that heaving pile is set up in the position.Heaving pile can use single protection tube to set up to each independent optical fiber of each fibre bundle 14, and independent optical fiber spans into position 20 or tubular body 26 in vertical cable 11 opening part is directly told.Therefore, there is not bifurcation 22 (being divided into independent optical fiber) along heaving pile 12 at this optical fiber.Heaving pile is a branch of independent optical fiber, and each optical fiber is by separately protected protection of pipe, and it directly therefrom spans into position 20 beginnings.In this case, the separator tube that is drawn out the fibre bundle 14 of vertical cable is removed along its whole length, directly the end from the opening of tubular body 26 to the fibre bundle that is drawn out 14.Be protection optical fiber, set up single protection tube bank.For together with their bundles, set up transition piece, i.e. silicone tube, it is guaranteed to seamlessly transit and has no the short distance of protection tube to protect naked fibre at optical fiber.First end of protection tube evenly adheres to the inboard of transition piece.The quantity of the optical fiber that the quantity of separately protected pipe equals to tell.Afterwards, independent naked fibre slips into separately protected pipe.Transition piece is enclosed within on the opening of tubular body.Open the naked fibre and the fibre bundle 14 at the some place of tubular body for protection, apply the liquid-state silicon material.At last, spanning into position 20 in uses spiral parcel and pyrocondensation to seal.
The present invention has provided the possibility that makes the terminal user be connected to the fiber optic telecommunications network in the buildings easily.As the single element of wiring system, it can be easily provides direct sunshine to connect at the main distribution point of optical-fiber network with between the many different light signal users of the different piece of multitenant unit or apartment buildings and layer.The present invention spans into the position and has heaving pile for have the isolated single cable that spans into the position in a plurality of along optical cable in each, help to reduce the installation room inner fiber and get home T.T. of network.In span into the position heaving pile each independent optical fiber easily the flash of light preceding an earthquake be connected to branched cable.Because the pre-assembled solution that can cooperate with the connector performance that factory installs, it can be used as " plug and play " system and the chance that terminal user and optical-fibre channel are connected fast is provided.This can be accomplished installation process by the personnel of low skill level, and does not use any speciality tool.This has reduced installation cost.Owing to be single cable and little, help to save the space in the pipeline and can pass the small-bore tubing road and install than other assembly or its external diameter of solution.In addition, said product can be designed to thin and soft form.Therefore, make that also passing pipeline, wall or floor easily lays and can easily be wound on the spool.The present invention is designed to guarantee that the factory-assembled process does not comprise consuming time and complicated element such as light joint element, and can be accomplished by the personnel of non-high degree of skill.Equally, the process that spans into the position in the sealing also is easy and non-time-consuming procedure.Therefore, total manufacturing cost is minimized.
Claims (10)
1. preassembled cable comprises vertical cable (11) and from least one heaving pile (12) of said vertical cable (11) bifurcated;
Said vertical cable (11) comprising:
Surround the cable jacket (13) of a plurality of fibre bundles (14), wherein each said fibre bundle (14) comprises the separator tube that surrounds many independent optical fiber;
Be installed to the bifurcated breakout box (15) of an end (16) of said vertical cable (11), the independent optical fiber that said bifurcated breakout box (15) is told said vertical cable (11) make each optical fiber in the independent optical fiber (17) of said vertical cable (11) surround by separately protected pipe (18) and the independent optical fiber (17) of said vertical cable (11) in each optical fiber can be connected to the optical fiber of optical distribution cable;
Span into position (20) at least two, wherein in these, span at least one the zone in the position (20) from least one heaving pile of said vertical cable (11) bifurcated (12);
Each said heaving pile (12) comprising:
One fiber optic splicing (23) not separately of fiber optic splicing bundle (14) not of said vertical cable (11), each separately not fiber optic splicing (23) surround by separately protected pipe (24), wherein each said separately not fiber optic splicing (23) can be connected to the optical fiber of branched cable.
2. according to the preassembled cable of claim 1, wherein each said heaving pile (12) comprises a fiber optic splicing bundle (14) not that is surrounded by protection tube (21) of said vertical cable (11); And being installed to the bifurcated breakout box (22) of each heaving pile, the independent optical fiber that said bifurcated breakout box (22) is told each heaving pile (12) makes each independent optical fiber (23) of each heaving pile (12) surrounded by separately protected pipe (24) and each independent optical fiber (23) of each heaving pile (12) can be connected to the optical fiber of branched cable.
3. according to the preassembled cable of claim 1 or 2, the independent optical fiber (17) of wherein said vertical cable (11) is connected to the joints of optical fibre (19) each independent optical fiber (17) of said vertical cable is connected to the optical fiber of said optical distribution cable.
4. according to the preassembled cable of claim 3, wherein the independent optical fiber (23) of each heaving pile (12) is connected to the joints of optical fibre (25) each independent optical fiber of each heaving pile is connected to the optical fiber of branched cable.
5. comprise vertical cable and from the manufacturing approach of the preassembled cable of at least one heaving pile of said vertical cable bifurcated, this method comprises the steps:
The vertical cable that comprises the cable jacket that surrounds a plurality of fibre bundles is provided, and wherein each said fibre bundle comprises the separator tube that surrounds multifiber;
The bifurcated breakout box is installed to an end of said vertical cable, and its independent optical fiber of telling said vertical cable makes each independent optical fiber of said vertical cable surrounded by separately protected pipe and each independent optical fiber of said vertical cable can be connected to the optical fiber of optical distribution cable;
Thereby the said cable jacket of in the zone of two positions of said vertical cable, opening said vertical cable at least provides among two of said vertical cable span into the position at least, with the said fibre bundle near said vertical cable;
Spanning into the position in said first cuts at least one said fibre bundle of said vertical cable and passes second and span into the independent optical fiber of not joint of pulling out the cut end of cutting optical fibre bundle and spurring said not fiber optic splicing bundle in the position in said and pass separately protected pipe.
6. according to the method for claim 5, span into the cutting optical fibre bundle of pulling out the position in said and be pulled through the protection tube that is used for said fibre bundle heaving pile is provided thereby wherein pass second; And wherein the bifurcated breakout box is installed to each heaving pile, and the independent optical fiber of telling each heaving pile makes each independent optical fiber of each heaving pile can be connected to the optical fiber of branched cable by each independent optical fiber of separately protected pipe encirclement and each heaving pile.
7. according to the method for claim 5 or 6; Wherein two span into distance between the position in adjacent corresponding to the maximum length of heaving pile, this heaving pile through the primary importance that spans into the position in adjacent at said two cut one of said fibre bundle of said vertical cable, pass said two second places that span into the position in adjacent pull out the cut end of cutting optical fibre bundle, and pulling cutting optical fibre bundle pass protection tube and provide.
8. according to the method for claim 7, wherein span in each the position through in span into and apply encapsulant around the position and seal.
9. according to Claim 8 method also comprises the step to the independent optical fiber mounted connector of said vertical cable.
10. according to the method for claim 9, also comprise step to the independent optical fiber mounted connector of each heaving pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010111685 CN101887153B (en) | 2010-01-28 | 2010-01-28 | Preassembled cable and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010111685 CN101887153B (en) | 2010-01-28 | 2010-01-28 | Preassembled cable and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN101887153A CN101887153A (en) | 2010-11-17 |
| CN101887153B true CN101887153B (en) | 2012-12-26 |
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| CN 201010111685 Active CN101887153B (en) | 2010-01-28 | 2010-01-28 | Preassembled cable and manufacturing method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785106A (en) * | 2016-08-24 | 2018-03-09 | 河北东照线缆有限公司 | Pre- branch's shell, pre- branch optical fiber composite cable and its manufacture method |
| WO2022226895A1 (en) | 2021-04-29 | 2022-11-03 | Corning Research & Development Corporation | Preconnectorized optical distribution cable assemblies and corresponding methods of deployment |
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2010
- 2010-01-28 CN CN 201010111685 patent/CN101887153B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-116968A 2001.04.27 |
| JP特开2001-51131A 2001.02.23 |
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Effective date of registration: 20160421 Address after: SIEMENS road 610042 Sichuan city of Chengdu province high tech Industrial Development Zone No. 1 Patentee after: Chengdu Corning Optical Fiber Cable Co., Ltd. Address before: 200233 Shanghai City Guangxi No. 69 building 4 floor 24 Jinglu Patentee before: Corning Cable Systems Shanghai |