CN102928923B - Hot-melt field-assembled optical fiber connector - Google Patents
Hot-melt field-assembled optical fiber connector Download PDFInfo
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- CN102928923B CN102928923B CN201210429550.6A CN201210429550A CN102928923B CN 102928923 B CN102928923 B CN 102928923B CN 201210429550 A CN201210429550 A CN 201210429550A CN 102928923 B CN102928923 B CN 102928923B
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- optical fiber
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- pyrocondensation
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Abstract
The invention relates to a hot-melt field-assembled optical fiber connector. The connector comprises a front bracket, a connecting bracket, a ferrule, an optical fiber protector, a prefabricated optical fiber, a user side optical fiber, a heat-shrinkable protective tube, a rear bracket assembly, a screwing rear seat, an inserted core assembly and a spring. The connector has the following advantages: 1) the connector can be reused twice, thus increasing the assembly success rate, saving the field assembly time and lowering the cost; 2) the defect that the properties of the optical fiber quick connector are poorer because the bending radius of the optical fiber is insufficient, which is caused by insufficient length of the additional section, is overcome, and as the additional section of the optical fiber is the prefabricated optical fiber, the anti-bending optical fiber can be used, the bending radius is smaller, the additional section of the optical fiber can be shorter and the whole length of the optical fiber connector is reduced; 3) the optical fiber additional section welded twice is preposed, so the front end of the connector is a whole; and 4) the internal structure is suitable for various types of hot-melt field-assembled optical fiber connectors such as SC and LC and 0.25mm and 2.0mm optical cables.
Description
Technical field
The present invention is a kind of heat molten type field assembled joints of optical fibre, belongs to heat molten type field assembled joints of optical fibre technical field.
Background technology
At present, the existing heat molten type field assembled joints of optical fibre all can only be realized a welding, and be subject to the impact of heat sealing machine and on-the-spot various human factors, the heat molten type joints of optical fibre can not be realized welding success completely, if welding failure, the joints of optical fibre cancel, so, will certainly cause the cost of field terminating to increase, and complicated operation, packaging efficiency is low.
In addition, optical fiber manner for hot melt type optical fiber quick connector has two kinds conventionally, a kind of is by after user side optical fiber and preset fused fiber splice, by tail, overlap with lock pin fixing in aggregates, when inserting fiber adapter, user side optical fiber is followed lock pin and is moved together, but because tail cover is without any spacing, cause user when later maintenance, may occur that pullling optical fiber causes communication terminal, and because needing heat-shrink tube, bears part pulling force, thereby cause having certain risk in later stage use, impact is normally used; Another kind is to give a small amount of optical fiber more than needed in tail portion of connector heat-shrink tube rear end, make lock pin insert adapter and produce optical fiber generation bending more than needed while retreating, and because fiber lengths more than needed is not enough, cause fiber bending radius too small, thereby cause the loss of communications of connector excessive, impact is normally used.The problems referred to above have a strong impact on the interior quality of this series products always.
Summary of the invention
What the present invention proposed is a kind of heat molten type field assembled joints of optical fibre, and its object is intended to overcome the existing above-mentioned defect of prior art, adopts secondary welding mode, can make to reuse twice after a welding of joints of optical fibre failure, and the optical fiber of twice welding section more than needed is all arranged on pyrocondensation protection tube front end, thereby afterbody optical cable can be dead with tail portion of connector shell folder, when tail portion of connector is stressed, in adapter inside, can't there is relative motion in lock pin, thereby make to adopt the hot melt type optical fiber quick connector dependable performance of this kind of optical fiber manner, stable, on the other hand, by adopting structure cleverly to make connector inner fiber section more than needed preposition, and increase segment length more than needed, thereby make connector good integrity, during Assembling, simple to operate, mounting parts number is few, when connector inserts in adapter, because the fiber bending radius in connector meets standard-required, thereby the more traditional connector of the performance that makes this connector is good, and reliability is high, the present invention is simple and reliable for structure, easy for installation, can make to reuse twice after a welding of joints of optical fibre failure, greatly improved and be assembled into power, save the Assembling time, effectively reduce costs, its inner structure is applicable to polytype heat molten type field assembled joints of optical fibre such as SC, LC.
Technical solution of the present invention: a kind of heat molten type field assembled joints of optical fibre, its structure comprises fore-stock, connection bracket, cutting ferrule, fiber optic protection part, preformed fibers, user side optical fiber, pyrocondensation protection tube, after-poppet assembly, screws back seat, ferrule assembly and spring; Wherein fore-stock and connection bracket are by the mutual clamping of stuck point, connection bracket is also by stuck point and the mutual clamping of cutting ferrule, the spacing stuck point of fiber optic protection part is connected in the pre-manufactured hole of connection bracket, preformed fibers is connected with ferrule assembly by glue, when the joints of optical fibre insert adapter, ferrule assembly is stressed while retreating, be arranged in the preformed fibers of connection bracket as the optical fiber that can retreat for lock pin section more than needed, this optical fiber section more than needed is positioned at the front end of pyrocondensation protection tube, and the optical fiber of twice welding segment length more than needed all can guarantee to be greater than the minimum bending radius of optical fiber; Between described ferrule assembly and connection bracket, place spring, screw back seat, after-poppet assembly, pyrocondensation protection tube and penetrate successively user side optical fiber.
The present invention compared with prior art tool has the following advantages: 1) the present invention broken through the conventional hot melt type field assembled joints of optical fibre can only welding shortcoming once, can make twice of its recycling, greatly improved and be assembled into power, saved the Assembling time, effectively reduced costs.2) compare with structure in the past, the present invention has improved because segment length more than needed is not enough, thereby cause making due to fiber bending radius deficiency the shortcoming of optical fiber quick connector poor-performing, because optical fiber section more than needed is preformed fibers, so can use bend insensitive optical fiber, bending radius is less, and optical fiber section more than needed can be shorter, reduces joints of optical fibre entire length.3) twice welding optic fibre section more than needed is preposition, makes connector front end become as a whole, has avoided will assembling the problem of too much part in work progress.4) inner structure of the present invention is applicable to the multiple optical cables such as the polytype heat molten type field assembled joints of optical fibre such as SC, LC and 0.25mm, 0.9mm and 2.0mm.
Accompanying drawing explanation
Fig. 1 is heat molten type joints of optical fibre welding user side optical cable 3D schematic diagram for the first time.
Fig. 2 is heat molten type joints of optical fibre welding prefabricated optical cable 3D schematic diagram for the first time.
Fig. 3 is heat molten type joints of optical fibre welding 3D schematic diagram for the first time.
Fig. 4 is heat molten type joints of optical fibre welding cut-open views for the first time.
Fig. 5 is heat molten type joints of optical fibre welding 3D schematic diagram for the second time.
Fig. 6 is heat molten type joints of optical fibre welding cut-open views for the second time.
Fig. 7 is the inner 3D schematic diagram of heat molten type joints of optical fibre front end.
Fig. 8 is fiber optic protection part 3D schematic diagram.
In figure 1 is fore-stock, the 2nd, and connection bracket, the 3rd, cutting ferrule, the 4th, fiber optic protection part, the 5th, preformed fibers, 6 is fusion points, the 7th, and user side optical fiber, the 8th, pyrocondensation protection tube, the 9th, after-poppet assembly, the 10th, screw back seat, the 11st, ferrule assembly, the 12nd, spring, the 13rd, secondary fusion point; 2-1 is pre-manufactured hole, and 3-1 is spacing hole, and 4-1 is spacing stuck point.
Embodiment
Contrast accompanying drawing, a structure for the heat molten type field assembled joints of optical fibre, comprises fore-stock 1, connection bracket 2, cutting ferrule 3, fiber optic protection part 4, preformed fibers 5, user side optical fiber 7, pyrocondensation protection tube 8, after-poppet assembly 9, screws back seat 10, ferrule assembly 11 and spring 12, wherein fore-stock 1 passes through the mutual clamping of stuck point with connection bracket 2, connection bracket 2 is also by stuck point and the mutual clamping of cutting ferrule 3, the spacing stuck point of fiber optic protection part 4 is connected in the pre-manufactured hole of connection bracket 2, preformed fibers 5 is connected with ferrule assembly 11 by glue, when the joints of optical fibre insert adapter, ferrule assembly 11 is stressed while retreating, be arranged in the preformed fibers 5 of connection bracket 2 as the optical fiber that can retreat for lock pin section more than needed, this optical fiber section more than needed is positioned at the front end of pyrocondensation protection tube 8, and the optical fiber of twice welding segment length more than needed all can guarantee to be greater than the minimum bending radius of optical fiber, between described ferrule assembly 11 and connection bracket 2, place spring 12, screw back seat 10, after-poppet assembly 9, pyrocondensation protection tube 8 and penetrate successively user side optical fiber 7.
Described connection bracket 2 is provided with pre-manufactured hole, and cutting ferrule 3 is provided with spacing hole, and fiber optic protection part 4 is provided with spacing stuck point.
Embodiment
1) first will screw back seat 10, after-poppet assembly 9, pyrocondensation protection tube 8 and penetrate successively user side optical fiber 7, and utilize specific purpose tool and optical fiber cutter by user side optical fiber 7 fixed length cutting, prepare user side optical cable, as shown in Figure 1.
2) fiber optic protection part 4 is connected in the pre-manufactured hole of connection bracket 2 by its spacing stuck point, utilizes optical fiber cutter by preformed fibers 5 fixed length cutting, as shown in Figure 2.
3) utilize optical fiber splicer that the preformed fibers of preparation and user side optical fiber are carried out to welding, produce fusion point 6 one time, and fiber optic protection part 4 is extracted, spacing stuck point snaps in the spacing hole of cutting ferrule 3, thereby plays the effect of protection preformed fibers 5, as shown in Figure 3.
4) pyrocondensation protection tube 8 is enclosed within and carries out pyrocondensation (temperature 130-180 degree in drawn optical fiber guard member 4, pyrocondensation time 0.5-1 minute) fusion point 6 of pyrocondensation protection, is inserted in after-poppet assembly 9 successively, and fore-stock 1 is by stuck point clamping, screw-in screws back seat 10, thereby completes a welding; Thereby press from both sides dead user side optical fiber 7 afterbodys, complete a welding, at heat-shrink tube front end, produce optical fiber section more than needed, as shown in Figure 4 simultaneously.
5) after welding failure; can open after-poppet assembly and screw back seat; pyrocondensation protection tube 8 is cut off from a fusion point; cutting ferrule 3 is together pulled out and abandoned together with fiber optic protection part 4, again expose preformed fibers 5, can repeat welding step one time; complete secondary welding and produce secondary fusion point 13; optical fiber section more than needed is still at the front end of pyrocondensation protection tube 8, and length is enough, as shown in Figure 5,6.
The present invention has broken through the conventional hot melt type field assembled joints of optical fibre can only welding shortcoming once, can make its recycling twice, has greatly improved and has been assembled into power, saves the Assembling time, effectively reduces costs, the present invention passes through structural design cleverly, the length space of recycling fiber optic protection part, reach and in the situation that not increasing connector total length, increase optical fiber segment length more than needed, thereby reduce the loss that fibre-optical bending brings, improve heat molten type quick coupler performance, greatly improve the feature of its stability in use, broken through the performance reduction that conventional hot melt type quick coupler causes due to optical fiber section deficiency more than needed when the generation of head lock pin insertion adapter retreats, or due to section more than needed by afterbody cable and lock pin welding be during same integral body causes using when tail portion of connector optical cable is stressed the defect of signal of communication interruption equivalent risk, and due to optical fiber section more than needed is placed in to pyrocondensation protection tube front end, its inner structure and welding mode are applicable to SC, the polytype heat molten type field assembled joints of optical fibre and the 0.25mm such as LC, the multiple optical cable such as 0.9mm and 2.0mm.
Claims (1)
1. heat molten type field assembled joints of optical fibre, is characterized in that comprising fore-stock, connection bracket, cutting ferrule, fiber optic protection part, preformed fibers, user side optical fiber, pyrocondensation protection tube, after-poppet assembly, screw back seat, ferrule assembly and spring; Wherein fore-stock and connection bracket are by the mutual clamping of stuck point, connection bracket is also by stuck point and the mutual clamping of cutting ferrule, the spacing stuck point of fiber optic protection part is connected in the pre-manufactured hole of connection bracket, preformed fibers is connected with ferrule assembly by glue, when the joints of optical fibre insert adapter, ferrule assembly is stressed while retreating, be arranged in the preformed fibers of connection bracket as the optical fiber that can retreat for lock pin section more than needed, this optical fiber section more than needed is positioned at the front end of pyrocondensation protection tube, and the optical fiber of twice welding segment length more than needed all can guarantee to be greater than the minimum bending radius of optical fiber; Between described ferrule assembly and connection bracket, place spring, screw back seat, after-poppet assembly, pyrocondensation protection tube and penetrate successively user side optical fiber; Utilize optical fiber splicer that the preformed fibers of preparation and user side optical fiber are carried out to welding, produce fusion point one time, and fiber optic protection part is extracted, spacing stuck point snaps in the spacing hole of cutting ferrule, thereby plays the effect of protection preformed fibers; After welding failure; can open after-poppet assembly and screw back seat; pyrocondensation protection tube is cut off from a fusion point; cutting ferrule is together pulled out and abandoned together with fiber optic protection part; again expose preformed fibers, can repeat welding step one time, complete secondary welding and produce secondary fusion point; optical fiber section more than needed is still at the front end of pyrocondensation protection tube, and length is enough.
2.as the assemble method of claim 1 heat molten type field assembled joints of optical fibre, it is characterized in that the method comprises the steps:
1) first will screw back seat, after-poppet assembly, pyrocondensation protection tube and penetrate successively user side optical fiber, and utilize specific purpose tool and optical fiber cutter by the cutting of user side optical fibre fixed-length, prepare user side optical fiber;
2) fiber optic protection part is connected in the pre-manufactured hole of connection bracket by its spacing stuck point, utilizes optical fiber cutter by preformed fibers fixed length cutting;
3) utilize optical fiber splicer that the preformed fibers of preparation and user side optical fiber are carried out to welding, produce fusion point one time, and fiber optic protection part is extracted, spacing stuck point snaps in the spacing hole of cutting ferrule, thereby plays the effect of protection preformed fibers;
4) pyrocondensation protection tube is enclosed within and carries out a fusion point of pyrocondensation pyrocondensation protection in drawn optical fiber guard member, be inserted in successively after-poppet assembly, fore-stock, by stuck point clamping, screws back seat, thereby completes a welding; Thereby press from both sides dead user side optical fiber afterbody, complete a welding, at heat-shrink tube front end, produce optical fiber section more than needed simultaneously;
5) after welding failure; can open after-poppet assembly and screw back seat; pyrocondensation protection tube is cut off from a fusion point; cutting ferrule is together pulled out and abandoned together with fiber optic protection part; again expose preformed fibers, can repeat welding step one time, complete secondary welding and produce secondary fusion point; optical fiber section more than needed is still at the front end of pyrocondensation protection tube, and length is enough.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210429550.6A CN102928923B (en) | 2012-11-01 | 2012-11-01 | Hot-melt field-assembled optical fiber connector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210429550.6A CN102928923B (en) | 2012-11-01 | 2012-11-01 | Hot-melt field-assembled optical fiber connector |
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| CN102928923A CN102928923A (en) | 2013-02-13 |
| CN102928923B true CN102928923B (en) | 2014-01-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103885128A (en) * | 2013-12-27 | 2014-06-25 | 广东省广播电视网络股份有限公司 | Tail fiber joint used for fiber-to-the-home and protective method thereof |
| CN103792620B (en) * | 2014-02-21 | 2016-01-06 | 嘉隆科技（深圳）有限公司 | A kind of bend insensitive fiber coupling mechanism and manufacture method thereof |
| CN111751924B (en) * | 2019-03-27 | 2022-05-17 | 无锡天创光电科技有限公司 | Method for manufacturing end prefabricated capillary type optical fiber |
| WO2023135866A1 (en) * | 2022-01-14 | 2023-07-20 | 株式会社フジクラ | Optical connector and production method for optical connector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349787A (en) * | 2007-07-16 | 2009-01-21 | 何玫 | On-site quickly-assembling optical fiber connector |
| CN102116911A (en) * | 2010-07-08 | 2011-07-06 | 朴撰卨 | Optical fiber connector and method for assembling the same |
| CN102298178A (en) * | 2011-08-23 | 2011-12-28 | 南京普天通信股份有限公司 | Welding type fiber connector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008292710A (en) * | 2007-05-23 | 2008-12-04 | Sumitomo Electric Ind Ltd | Optical connector and assembling method thereof |
| JP4719755B2 (en) * | 2008-02-29 | 2011-07-06 | 住友電気工業株式会社 | Optical connector |
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- 2012-11-01 CN CN201210429550.6A patent/CN102928923B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349787A (en) * | 2007-07-16 | 2009-01-21 | 何玫 | On-site quickly-assembling optical fiber connector |
| CN102116911A (en) * | 2010-07-08 | 2011-07-06 | 朴撰卨 | Optical fiber connector and method for assembling the same |
| CN102298178A (en) * | 2011-08-23 | 2011-12-28 | 南京普天通信股份有限公司 | Welding type fiber connector |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2009-205100A 2009.09.10 |
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