CN103135176A - Fibre-optic link sealing device and manufacturing method thereof - Google Patents
Fibre-optic link sealing device and manufacturing method thereof Download PDFInfo
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- CN103135176A CN103135176A CN 201110390841 CN201110390841A CN103135176A CN 103135176 A CN103135176 A CN 103135176A CN 201110390841 CN201110390841 CN 201110390841 CN 201110390841 A CN201110390841 A CN 201110390841A CN 103135176 A CN103135176 A CN 103135176A
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Abstract
The invention discloses a fibre-optic link sealing device and a manufacturing method of the fibre-optic link sealing device. The fibre-optic link sealing device comprises a flange and optical fibers. The flange is formed by a first block and a second block which are closely fitted. A groove which is parallel with the flange axially and through the tight binding surface is formed in the tight binding surface of at least one of the blocks of the first block and the second block and forms a fiber channel of the blocks which are tightly fitted. The diameter of an incircle of the fiber channel is larger than the external diameter of a bare fiber of an optical fiber without coating. First sealing materials are filled between the fiber channel and bare fibers. The manufacturing method includes the following steps: 1) milling and polishing the first block and the second block; 2) the groove is processed in the tight binding surface of the first block and the second block; 3) the bare fibers are arranged inside the groove, and the first sealing materials are filled between the groove and the bare fibers; 4) solidifying the first sealing materials. The fibre-optic link sealing device is simple in structure, reasonable in design, convenient to process and good in sealing effect and at the same time high in reliability.
Description
Technical field
The present invention relates to a kind of packoff and manufacture method, especially relate to a kind of not only allowed optical fiber pass two between relatively independent space dividing plate, but also guarantee between two spaces packoff and the manufacture method thereof that the optical fiber of sealing mutually connects.
Background technology
Optical fiber communication and optical fiber sensing technology are in develop rapidly, its applied environment is also more and more extensive, communication sensing and the monitoring of the pressure and temp in some closed containers as spaceship, Space-Work station, submarine optical fiber cable, subsea pipeline monitoring, transformer inside, these all need optical fiber is passed two dividing plates between relatively independent space, and will keep the wherein leakproofness at least one space; On the other hand, the optical fiber that most is commonly used all is based on quartz material and makes, and therefore common metal solder can't be used, and just needs some special, packoffs that guarantee the optical fiber connection.Chinese patent application numbers 200910218515.8, name is called in " direct-pass type optical fiber sealing device and manufacture method thereof " and has disclosed a kind of scheme, namely on a metal flange, the optical fiber through hole is arranged, and have the bare fibre of metal tube to be placed in the optical fiber through hole in metallized, cover, then sealing forms optical fiber sealing device.Because bare fibre is thinner, and the optical fiber through hole on flange is thicker, so have to be mounted with metal sleeve between bare fibre and optical fiber through hole, so just causes obturator complexity and unstable properties.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, provide a kind of optical fiber to connect packoff and manufacture method thereof, its simple in structure, reasonable in design, easy to process and good sealing effect, reliability is high simultaneously, is suitable for promoting the use of.
for achieving the above object, the technical solution used in the present invention is: a kind of optical fiber connects packoff, it is characterized in that: comprise flange and optical fiber, described flange is comprised of two the first blocks that fit tightly and the second block, in described the first block and two blocks of the second block, fitting tightly of at least one block is provided with the flange axially parallel and connects the whole groove that fits tightly face on face, described groove has consisted of the optical-fibre channel between two blocks of fitting tightly, the inscribed circle diameter of described optical-fibre channel removes the external diameter of bare fibre after coat greater than optical fiber, be filled with the first encapsulant between described optical-fibre channel and bare fibre.
Above-mentioned a kind of optical fiber connects packoff, and it is characterized in that: fitting tightly of described the first block and the second block is filled with the second encapsulant between face.
Above-mentioned a kind of optical fiber connects packoff, and it is characterized in that: described the first encapsulant and the second encapsulant are macromolecular material, low melting point glass material, low melting point metal material or low-melting point metal alloy material.
Above-mentioned a kind of optical fiber connects packoff, it is characterized in that: described groove be shaped as V font or U font.
Above-mentioned a kind of optical fiber connects packoff, and it is characterized in that: described groove is the step groove.
Above-mentioned a kind of optical fiber connects packoff, and it is characterized in that: all have the screw that is symmetrical set on described the first block and the second block, described the first block is fixedly connected with by the bolt that passes screw with the second block.
Above-mentioned a kind of optical fiber connects packoff, it is characterized in that: all have mounting hole on described the first block and the second block.
Another object of the present invention is to provide the manufacture method that a kind of optical fiber connects packoff, it is characterized in that comprising the following steps:
1) will consist of the first block of flange and the face that fits tightly of the second block and mill respectively flat polishing;
2) process with the flange axially parallel on face and connect the whole groove that fits tightly face fitting tightly of the first block and the second block;
3) bare fibre after installing optical fibres removes coat in described groove, and fill the first encapsulant between groove and bare fibre;
4) face that fits tightly with the first block and the second block tightly sticks together, and through placement or heat treated, the first encapsulant is solidified, and carries out at last leakage check.
The present invention compared with prior art has the following advantages:
1, simple in structure, input cost is low, good sealing effect and have purposes widely.
2, due to processing V font or the U font groove on face of fitting tightly at least one block, can be at the cross-sectional area that reduces groove, and mate simultaneously the external diameter of bare fibre, like this can be as far as possible few interpolation encapsulant, guarantee the reliability of sealing, and reduced the possibility of the seal failure that bare fibre and flange cause due to the difference of expansion coefficient.
3, described block materials can be selected to approach with the expansion coefficient of bare fibre material or identical glass material, stupalith or quartz glass, can further reduce or eliminate fully like this possibility of the seal failure of introducing due to the difference of expansion coefficient, improve reliability.
4, it is just passable that this optical fiber connects the higher equipment of precision that the process of packoff only need to commonly use, and do not need some special high-precision micropores or other specific installations, can large batch ofly produce, thereby reduce costs.
5, can process two or more grooves on block, thereby complete the connection of multifiber.
In sum, the present invention is simple in structure, reasonable in design, processing and fabricating convenient, cost is low and result of use good, has higher reliability, is suitable for promoting the use of.
Below by drawings and Examples, the present invention is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the first embodiment of the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the structural representation of the second embodiment of the present invention.
Description of reference numerals:
1-the first block; 2-the second block; 3-optical fiber;
The 4-bare fibre; The 5-bolt; The 6-screw;
The 7-mounting hole; 8-1-the first encapsulant; 8-2-the second encapsulant.
Embodiment
as depicted in figs. 1 and 2, a kind of optical fiber connects packoff, comprise flange and optical fiber 3, described flange is comprised of two the first blocks 1 that fit tightly and the second block 2, in described the first block 1 and 2 two blocks of the second block, fitting tightly of at least one block is provided with the flange axially parallel and connects the whole groove 9 that fits tightly face on face, described groove 9 has consisted of the optical-fibre channel between two blocks that fit tightly, the inscribed circle diameter of described optical-fibre channel removes the external diameter of bare fibre 4 after coat greater than optical fiber 3, be filled with the first encapsulant 8-1 between described optical-fibre channel and bare fibre 4.
In the present embodiment, described the first encapsulant 8-1 and the second encapsulant 8-2 are macromolecular material, low melting point glass material, low melting point metal material or low-melting point metal alloy material, can select the materials such as epoxy resin, teflon, pi in macromolecular material, low melting point metal material or low-melting point metal alloy material can be metallic tin or leypewter.
In the present embodiment, described groove 9 be shaped as V font or U font.
In the present embodiment, described groove 9 is the step groove, the optical fiber 3 of removing coat also can be fixed in flange, thereby the intensity of raising optical fiber 3 prevents the fracture of bare fibre 4.
As depicted in figs. 1 and 2, all have the screw 6 that is symmetrical set on described the first block 1 and the second block 2, described the first block 1 is fixedly connected with by the bolt 5 that passes screw 6 with the second block 2, and bolt 5 can be selected metal bolts, ceramic bolt, quartzy bolt or graphite bolt.
As depicted in figs. 1 and 2, all have mounting hole 7 on described the first block 1 and the second block 2.
In the present embodiment, the material of the first block 1 and the second block 2 is alloy, glass material, crystal or pottery; Bare fibre 4 plated surfaces are covered with metal or the non-metallic material bed of material, and as bare fibre 4 coating surface copper-gold alloy films, then encapsulant is selected gold-tin alloy, and both have good compatibility.
In the present embodiment, the manufacture method that optical fiber connects packoff comprises the following steps:
1) will consist of the first block 1 of flange and the face that fits tightly of the second block 2 and mill respectively flat polishing.
2) fitting tightly of the first block 1 and the second block 2 processed with the flange axially parallel on face and connect the whole groove 9 that fits tightly face.
3) bare fibre 4 after the interior installing optical fibres 3 of described groove 9 removes coat, and fill the first encapsulant 8-1 between groove 9 and bare fibre 4; The first encapsulant 8-1 is liquid or Powdered encapsulant.
4) face that fits tightly with the first block 1 and the second block 2 tightly sticks together, and through placement or heat treated, the first encapsulant 8-1 is solidified, and carries out at last leakage check.
Above-mentioned steps 4) in, if adopt liquid anaerobic type epoxy resin as encapsulant, the face that fits tightly with two blocks tightly sticks together, and through placing the end time, treats epoxy resin cure, just can complete making step through sealing detection; If encapsulant adopts liquid polyimide solution, pulverous teflon, pulverous low-temperature metal or alloy material, just need heating, treat that the first encapsulant 8-1 solidifies just can complete making step by sealing detection.
As shown in Figure 3, in the present embodiment as different from Example 1: fitting tightly of described the first block 1 and the second block 2 is filled with the second encapsulant 8-2 between face, further guarantee the reliability of sealing.
In the present embodiment, the manufacture method that optical fiber connects packoff comprises the following steps:
1) will consist of the first block 1 of flange and the face that fits tightly of the second block 2 and mill respectively flat polishing.
2) fitting tightly of the first block 1 and the second block 2 processed with the flange axially parallel on face and connect the whole groove 9 that fits tightly face.
3) bare fibre 4 after the interior installing optical fibres 3 of described groove 9 removes coat, and fill the first encapsulant 8-1 between groove 9 and bare fibre 4; And filling the second encapsulant 8-2 between face fitting tightly of the first block 1 and the second block 2, the first encapsulant 8-1 and the second encapsulant 8-2 are liquid or Powdered encapsulant.
4) face that fits tightly with the first block 1 and the second block 2 tightly sticks together, and through placement or heat treated, the first encapsulant 8-1 is solidified, and carries out at last leakage check.
In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every according to the technology of the present invention essence to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solution of the present invention.
Claims (8)
1. an optical fiber connects packoff, it is characterized in that: comprise flange and optical fiber (3), described flange is comprised of two the first blocks (1) that fit tightly and the second block (2), in described the first block (1) and (2) two blocks of the second block, fitting tightly of at least one block is provided with the flange axially parallel and connects the whole groove (9) that fits tightly face on face, described groove (9) has consisted of the optical-fibre channel between two blocks that fit tightly, the inscribed circle diameter of described optical-fibre channel removes the external diameter of bare fibre (4) after coat greater than optical fiber (3), be filled with the first encapsulant (8-1) between described optical-fibre channel and bare fibre (4).
2. connect packoff according to a kind of optical fiber claimed in claim 1, it is characterized in that: fitting tightly of described the first block (1) and the second block (2) is filled with the second encapsulant (8-2) between face.
3. connect packoff according to a kind of optical fiber claimed in claim 2, it is characterized in that: described the first encapsulant (8-1) and the second encapsulant (8-2) are macromolecular material, low melting point glass material, low melting point metal material or low-melting point metal alloy material.
4. connect packoff according to the described a kind of optical fiber of claim 1 or 2, it is characterized in that: described groove (9) be shaped as V font or U font.
5. connect packoff according to the described a kind of optical fiber of claim 1 or 2, it is characterized in that: described groove (9) is the step groove.
6. connect packoff according to the described a kind of optical fiber of claim 1 or 2, it is characterized in that: all have the screw (6) that is symmetrical set on described the first block (1) and the second block (2), described the first block (1) is fixedly connected with by the bolt (5) that passes screw (6) with the second block (2).
7. connect packoff according to the described a kind of optical fiber of claim 1 or 2, it is characterized in that: all have mounting hole (7) on described the first block (1) and the second block (2).
8. manufacture method that connects packoff according to the described optical fiber of claim 1 is characterized in that comprising the following steps:
1) will consist of first block (1) of flange and the face that fits tightly of the second block (2) and mill respectively flat polishing;
2) process with the flange axially parallel on face and connect the whole groove (9) that fits tightly face fitting tightly of the first block (1) and the second block (2);
3) bare fibre (4) after installing optical fibres (3) removes coat in described groove (9), and fill the first encapsulant (8-1) between groove (9) and bare fibre (4);
4) face that fits tightly with the first block (1) and the second block (2) tightly sticks together, and through placement or heat treated, the first encapsulant (8-1) is solidified, and carries out at last leakage check.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110390841 CN103135176A (en) | 2011-12-01 | 2011-12-01 | Fibre-optic link sealing device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110390841 CN103135176A (en) | 2011-12-01 | 2011-12-01 | Fibre-optic link sealing device and manufacturing method thereof |
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| CN103135176A true CN103135176A (en) | 2013-06-05 |
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| CN 201110390841 Pending CN103135176A (en) | 2011-12-01 | 2011-12-01 | Fibre-optic link sealing device and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901545A (en) * | 2014-03-21 | 2014-07-02 | 上海大学 | Lens self-coupling type optical fiber adapter |
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2011
- 2011-12-01 CN CN 201110390841 patent/CN103135176A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901545A (en) * | 2014-03-21 | 2014-07-02 | 上海大学 | Lens self-coupling type optical fiber adapter |
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Application publication date: 20130605 |