CN113325535A - Optical fiber airtight interface device and manufacturing method thereof - Google Patents
Optical fiber airtight interface device and manufacturing method thereof Download PDFInfo
- Publication number
- CN113325535A CN113325535A CN202110658813.XA CN202110658813A CN113325535A CN 113325535 A CN113325535 A CN 113325535A CN 202110658813 A CN202110658813 A CN 202110658813A CN 113325535 A CN113325535 A CN 113325535A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- protecting cover
- glue
- interface flange
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses an optical fiber airtight interface device, which comprises: the connector flange is matched with the low-temperature sealed container, and the inner protecting cover and the outer protecting cover are respectively positioned on two sides of the connector flange; one or more sensing optical fibers pass through the through hole on the bottom surface of the inner protecting cover, the through hole of the interface flange and the through hole of the outer protecting cover; the bottom surface of the inner protecting cover is provided with one or more glue injection holes, and the bottom surface of the outer protecting cover is provided with one or more glue injection holes; the inner space of the inner protecting cover and the inner space of the outer protecting cover are filled with glue. The manufacturing method comprises the following steps: respectively assembling the interface flange fixed with the optical fiber with the inner protecting cover and the outer protecting cover to form an inner side or outer side packaging piece; the interface flange is positioned in the horizontal plane, glue is slowly injected in the vertical direction through the glue injection hole on the bottom surface of the inner protecting cover or the outer protecting cover until the inner protecting cover or the outer protecting cover is filled, and the glue seal is solidified. The present invention provides sufficient hermeticity to withstand high vacuum environments such as superconductor cryogenic dewars.
Description
Technical Field
The invention belongs to the field of optical fiber sensing, and particularly relates to an optical fiber sealed interface device and a manufacturing method thereof, in particular to an optical fiber sealed interface device applied to a low-temperature sealed container and a manufacturing method thereof.
Background
The optical fiber is mainly made of quartz glass, and the optical fiber sensor using the optical fiber as a transmission medium and manufacturing elements has many excellent properties, such as electromagnetic and atomic radiation interference resistance, thin diameter, soft quality and light weight; insulating, non-inductive electrical performance; chemical properties of water resistance, high temperature resistance, corrosion resistance and the like. And therefore are also widely used for detecting various physical quantities, i.e. sensing fibers. In recent years, with the development of superconducting technology and ultra-low temperature field, under strong magnetic field and ultra-low temperature environment, the use of the optical fiber sensor is more and more extensive, sometimes according to experimental requirements, the optical fiber sensor or the optical fiber grating is required to be arranged in the ultra-low temperature container, at this time, the optical fiber is required to be led out from the ultra-low temperature container, the optical signal of the led-out optical fiber is ensured to be smooth, and the vacuum degree and the ultra-low temperature environment in the container can not be damaged.
In order to solve the above problems, the chinese patent "an optical fiber quick-connection sealing device used in ultra-low temperature dewar" (patent nos. CN107300740A and CN206975270U) adopts a method of preparing an interface flange having a plurality of through holes at the center, inserting an optical fiber adapter into the through hole of the interface flange, and sealing a gap between the optical fiber adapter and the through hole by soldering. But here the solder seals are the gaps between the connector and the interface flange, ignoring the fiber optic connector itself. The interior of the optical fiber connector is also generally composed of a plurality of components, and the internal components generally do not have a sealing function, so that the vacuum environment in the Dewar cannot be well guaranteed; when the optical fibers are quickly connected through the optical fiber connector, the optical fibers cannot be completely and directly butted with the fiber cores, gaps and displacement always exist between the butted optical fibers, so that optical signal loss is large, and the detection effect is influenced; moreover, the conventional optical fiber connector quick-connection device is a single-hole single optical fiber, and the size of the connector is large, so that the number of optical fibers which can be arranged on one sealing device is limited; in addition, the optical fiber is fragile, and if the optical fibers on two sides of the sealing device are not effectively protected, the optical fibers are easily damaged due to improper installation or operation.
Disclosure of Invention
The invention provides an optical fiber sealed interface device and a manufacturing method thereof, and particularly provides an optical fiber sealed interface device applied to a low-temperature sealed container and a manufacturing method thereof, aiming at stabilizing the gap among a sealed interface flange, an optical fiber and other accessories by using the flowability of glue and the sealed volume with enough thickness through an optical fiber inner and outer protecting cover filled with the glue, thereby providing enough air tightness and resisting the ultralow temperature environment, and therefore solving the technical problems of poor air tightness, insufficient protection of the optical fiber at the interface, easy breakage or complex sealing process in the prior art.
To achieve the above object, according to one aspect of the present invention, there is provided an optical fiber sealing interface device, including: the connector flange is matched with the low-temperature sealed container, and the inner protecting cover and the outer protecting cover are respectively positioned on two sides of the connector flange;
one or more sensing optical fibers pass through the through hole on the bottom surface of the inner protecting cover, the through hole of the interface flange and the through hole of the outer protecting cover; the bottom surface of the inner protecting cover is provided with one or more glue injection holes, and the bottom surface of the outer protecting cover is provided with one or more glue injection holes; the inner space of the inner protecting cover and the inner space of the outer protecting cover are filled with glue.
Preferably, the optical fiber sealing interface device further comprises an optical fiber inner side protection tube and/or an optical fiber outer side protection tube, the optical fiber inner side protection tube is arranged between the through hole in the bottom surface of the inner protecting cover and the optical fiber, and the optical fiber outer side protection tube is arranged between the through hole in the bottom surface of the outer protecting cover and the optical fiber.
Preferably, in the optical fiber sealing interface device, a gap exists between the inner protective tube and the interface flange, and a gap exists between the outer protective tube of the optical fiber and the interface flange.
Preferably, the optical fiber sealing interface device, the internal space of the internal protective cover of which includes the space between the optical fiber and the internal protective tube, and the space between the internal protective cover, the interface flange and the optical fiber or the internal protective tube; the inner space of the outer protecting cover comprises a space between the optical fiber and the outer protecting pipe and a space between the outer protecting cover, the interface flange and the optical fiber or the outer protecting pipe.
According to another aspect of the present invention, there is provided a method for manufacturing the optical fiber hermetic interface device, which includes the following steps:
respectively assembling the interface flange fixed with the optical fiber with the inner protecting cover and the outer protecting cover to form an inner side or outer side packaging piece;
the interface flange is positioned in the horizontal plane, glue is slowly injected in the vertical direction through the glue injection hole on the bottom surface of the inner protecting cover or the outer protecting cover until the inner protecting cover or the outer protecting cover is filled, and the glue seal is solidified.
Preferably, in the manufacturing method of the optical fiber sealed interface device, after injecting part or all of the glue, the optical fiber sealed interface device is inserted into the optical fiber inner side protective tube or the optical fiber outer side protective tube; or
And inserting the inner side protective pipe or the outer side protective pipe, keeping a gap for enabling glue to permeate between the inner side protective pipe or the outer side protective pipe and the interface flange, and injecting the glue.
Preferably, the manufacturing method of the optical fiber hermetic interface device includes the following steps:
combining the interface flange fixed with the optical fiber with the inner protective cover to form an inner side packaging piece;
the interface flange is positioned in the horizontal plane, the inner protective cover is positioned above the interface flange, glue is slowly injected along the vertical direction through the glue injection hole on the bottom surface of the inner protective cover until the inner protective cover is filled, and the glue seal is cured;
turning over the inner side packaging part, and combining the interface flange fixed with the optical fiber with the outer protective cover to form an outer side packaging part;
make the interface flange be in the horizontal plane, outer protecting cover is in interface flange top, through the injecting glue hole of outer protecting cover bottom surface, slowly pours into glue along vertical direction until filling outer protecting cover, and the solidification is glued and is sealed.
Preferably, the manufacturing method of the optical fiber sealed interface device includes that glue is slowly injected along the vertical direction through the glue injection hole on the bottom surface of the inner protecting cover until the inner protecting cover is filled with the glue:
after injecting part or all of the glue, inserting the optical fiber inner side protective tube; or
And inserting the inner side protective pipe, keeping a gap for enabling glue to permeate between the inner side protective pipe and the interface flange, and injecting the glue.
Preferably, the manufacturing method of the optical fiber sealed interface device, wherein the step of slowly injecting glue along the vertical direction through the glue injection hole on the bottom surface of the outer protecting cover until the outer protecting cover is filled with glue, specifically comprises the following steps:
after injecting part or all of the glue, inserting the outer protective tube of the optical fiber; or
And inserting the outer side protective pipe, keeping a gap for enabling glue to permeate between the outer side protective pipe and the interface flange, and injecting the glue.
Preferably, in the manufacturing method of the optical fiber sealed interface device, the optical fiber and the interface flange are fixed by glue sealing.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
the optical fiber sealing interface device provided by the invention is characterized in that the inside and the outside of the interface flange are provided with the protective covers, optical fiber protective components such as sleeves can be arranged in the protective covers, glue is injected into the protective covers axially through optical fibers to form glue sealing blocks with enough thickness, so that enough airtightness can be provided, and the optical fiber sealing interface device can bear a high-vacuum environment such as a superconductor low-temperature Dewar; meanwhile, the glue sealing block with enough thickness can also resist ultralow temperature, preferably low-temperature-resistant glue, and meets the requirement of superconducting temperature.
Preferably, the optical fiber protective tubes can be arranged at the inner protective cover and the outer protective cover, so that the protection of the optical fiber is enhanced, and the possible damage to the optical fiber in the operation and installation process is avoided as much as possible.
According to the manufacturing method of the optical fiber sealed interface device, glue is injected axially through the optical fiber in the vertical direction, on one hand, the flowability of glue is utilized, on the other hand, the outward leakage of the glue is avoided to the greatest extent, so that the full injection of the glue into the inner protective cover and the outer protective cover is realized, and the glue sealing effect is ensured.
Drawings
FIG. 1 is a cross-sectional view of a fiber-optic sealed interface device according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a method for manufacturing an optical fiber hermetic interface device according to an embodiment of the present invention, in which an optical fiber is fixed to an interface flange in a gel-like manner;
fig. 3 is a schematic diagram illustrating glue injection and curing of an inner protective cover in a manufacturing method of an optical fiber hermetic interface device according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating glue injection and curing of an outer protective cover in a method for manufacturing an optical fiber sealed interface device according to an embodiment of the present invention;
fig. 5 is an external perspective view of an optical fiber sealing interface device according to an embodiment of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: the connector comprises a flange 1, a cover 2, an inner protective cover 21, an outer protective cover 22, a through hole 23 and a glue injection hole 24; 3 is optical fiber, 4 is protective tube, and 5 is low temperature glue.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention provides an optical fiber sealing interface device, which is particularly suitable for being applied to a low-temperature sealing container, and comprises the following components: the interface flange is matched with the low-temperature sealing container, the inner protecting cover and the outer protecting cover are respectively positioned at two sides of the interface flange, and the optical fiber inner side protecting pipe and/or the optical fiber outer side protecting pipe are/is arranged on the interface flange;
one or more sensing optical fibers pass through the through hole on the bottom surface of the inner protecting cover, the through hole of the interface flange and the through hole of the outer protecting cover;
the optical fiber inner side protective pipe is arranged between the through hole on the bottom surface of the inner protecting cover and the optical fiber, and preferably, a gap is formed between the inner side protective pipe and the interface flange; the optical fiber outer protective pipe is arranged between the through hole in the bottom surface of the outer protective cover and the optical fiber, and preferably, a gap exists between the optical fiber outer protective pipe and the interface flange;
the bottom surface of the inner protecting cover is provided with one or more glue injection holes, and the bottom surface of the outer protecting cover is provided with one or more glue injection holes; the inner space of the inner protecting cover and the inner space of the outer protecting cover are filled with glue, preferably low-temperature-resistant glue; the inner space of the inner protecting cover comprises a space between the optical fiber and the inner protecting pipe and a space between the inner protecting cover, the interface flange and the optical fiber or the inner protecting pipe; the inner space of the outer protecting cover comprises a space between the optical fiber and the outer protecting pipe and a space between the outer protecting cover, the interface flange and the optical fiber or the outer protecting pipe.
In order to ensure that the vacuum degree of the sealing device is not damaged, strict sealing is needed between the interface flange and the optical fiber, if the optical fiber adapter is in airtight fit with the flange, the vacuum degree cannot be effectively ensured due to poor sealing performance of the optical fiber adapter, if the optical fiber is in direct fit with the flange, the optical fiber is weak due to the fact that the optical fiber structure is determined, a coating cannot bear the airtight mode of metal welding, and a quartz core layer cladding cannot bear the pressure caused by high temperature caused by welding or the airtight mode of mechanical compression, so that the yield is low. In order to solve the problems of difficult sealing between the optical fiber and the interface flange and low yield, the invention adopts glue injection sealing, utilizes the fluidity of glue to fill the gap between the optical fiber and the interface flange, and has good sealing performance after the glue is cured. Even when the optical fiber protection tube is adopted to protect the optical fiber, the yield is further improved, and the service life is prolonged, the optical fiber, the protection tube and the interface flange can form good integral sealing performance through the glue injection process.
In order to realize the glue injection process, the protective covers are additionally arranged on the outer sides of the inner sides of the flanges and are used as glue injection containers, and particularly, the design of the glue injection holes directly determines the glue injection effect. The glue injection hole is arranged at the bottom of the protecting cover and is on the same plane with the through hole through which the optical fiber of the protecting cover passes, so that the axial glue injection of the optical fiber is realized. Because a plurality of optical fibers are arranged parallel to the plane of the flange, the operation space is small, and a gluing process is generally adopted on the side surface of the optical fiber, such as the packaging of the fiber grating sensor, or a glue dipping packaging process is adopted, namely, partial glue is filled in the packaging, and the glue sealing is formed between the optical fiber and the packaging by using the viscosity and the surface tension of the glue. However, the above glue sealing process cannot ensure that the glue in the package is fully injected, especially when the optical fiber has a protection tube, the lateral glue injection is difficult to fill the gap between the protection tube and the optical fiber due to the viscosity of the glue, or the glue overflows from the gap between the protection tube and the optical fiber, which causes the problems of air bubbles in the package or insufficient package. The problem of insufficient glue injection exists in glue dipping process packaging. When the glue injection is not full, the vacuum environment in the container is likely to cause degumming due to the expansion of the sealed gas or the pressure difference between the inside and the outside, and the degumming probability is higher particularly in the environment of low temperature and ultralow temperature. Once debonded, the inability to seal between the interface flange and the optical fiber can result in a failure of the overall seal. Therefore, in order to realize the scheme of filling the glue into the packaging part, the glue filling hole is formed in the same plane of the bottom of the packaging part, namely the protecting cover, namely the through hole through which the optical fiber penetrates, the flange is kept horizontal, the glue is filled along the vertical optical fiber axial direction, the packaging part is filled by utilizing the fluidity of the glue, namely, the gaps among the protecting cover, the flange, the optical fiber and the optical fiber sheath are filled, stable and reliable glue sealing is formed after curing, and the sealing failure probability is greatly reduced.
The invention provides a manufacturing method special for the optical fiber sealed interface device, which comprises the following steps:
respectively assembling the interface flange fixed with the optical fiber with the inner protecting cover and the outer protecting cover to form an inner side or outer side packaging piece;
the interface flange is positioned in the horizontal plane, glue is slowly injected along the vertical direction through the glue injection hole on the bottom surface of the inner protecting cover or the outer protecting cover until the inner protecting cover or the outer protecting cover is fully injected, and the glue seal is solidified; preferably, after injecting part or all of the glue, inserting the optical fiber inner side protective tube or the optical fiber outer side protective tube; or inserting the inner protective pipe or the outer protective pipe, keeping a gap for the penetration of the glue between the inner protective pipe or the outer protective pipe and the interface flange, and injecting the glue.
The method specifically comprises the following steps:
combining the interface flange fixed with the optical fiber with the inner protective cover to form an inner side packaging piece;
the interface flange is positioned in the horizontal plane, the inner protective cover is positioned above the interface flange, glue is slowly injected along the vertical direction through the glue injection hole on the bottom surface of the inner protective cover until the inner protective cover is filled, and the glue seal is cured; preferably, after injecting part or all of the glue, inserting the optical fiber inner side protective tube; or inserting an inner side protective pipe, keeping a gap for enabling glue to permeate between the inner side protective pipe and the interface flange, and then injecting the glue;
turning over the inner side packaging part, and combining the interface flange fixed with the optical fiber with the outer protective cover to form an outer side packaging part;
the interface flange is positioned in the horizontal plane, the outer protective cover is positioned above the interface flange, glue is slowly injected along the vertical direction through the glue injection hole on the bottom surface of the outer protective cover until the outer protective cover is fully injected, and the glue seal is cured; preferably, after injecting part or all of the glue, inserting the outer protective tube of the optical fiber; the outer side protective pipe can be inserted first, a gap for enabling glue to permeate is kept between the outer side protective pipe and the interface flange, and then the glue is injected.
The optical fiber and the interface flange are fixed through glue sealing.
The method can directly fix the optical fiber, realizes the fusion connection of the sensing optical fiber and the transmission optical fiber, does not need to carry out quick connection through an optical fiber connector, and greatly reduces the loss of optical signals. The detection system is built by adopting optical fiber fusion, the optical loss is small, and the measurement precision is high.
The following are examples:
an optical fiber sealing interface device applied to ultra-low temperature Dewar detection has the characteristics of one hollow and multiple cores, as shown in figure 1, the structure comprises:
the center is provided with an interface flange 1 with a plurality of through holes;
the interface flange is matched with two multi-hole metal cap caps 2 which are respectively an inner cap 21 and an outer cap 22, and the inner cap is provided with a through hole 23 for passing through an optical fiber and two glue injection holes 24;
and the optical fiber 3 passes through the device, wherein two optical fibers and an optical fiber protective tube 4 penetrate into a group of through holes of the inner protective cover, the interface flange and the outer protective cover.
And the low-temperature-resistant glue 5 fills gaps among the optical fiber 3, the interface flange 1, the protective pipe 4, the inner protective cover 21 and the outer protective cover 22, and the optical fiber 3, the interface flange 1 and the cap 2 are sealed after curing.
FIG. 5 is an overall effect diagram of the apparatus, in which the optical fiber in the container can be directly welded with the installed optical fiber sensor; an optical fiber jumper wire can be fused to an optical fiber outside the container, the optical fiber sensor in the container can be monitored by inserting demodulation equipment, after the installation is completed, the inner protective cover is arranged inside the ultralow-temperature Dewar, the interface flange and the ultralow-temperature Dewar can be disassembled and fixed, and the outer protective cover is arranged outside the ultralow temperature.
The optical fiber sealed interface device is manufactured according to the following method:
(1) and (3) gluing and fixing the optical fiber and the interface flange:
the through holes of the flange interfaces are plugged by masking tape, small holes are punched in the through holes, and optical fibers are inserted into the through holes; and coating low-temperature glue to fix the optical fiber and the flange interface.
(2) And (3) inner protective cover glue injection curing: combining the interface flange fixed with the optical fiber obtained in the step (1) with an inner protecting cover, namely, enabling the optical fiber group to penetrate through a through hole on the bottom surface of the inner protecting cover corresponding to the through hole of the interface flange, fixing the interface flange on a horizontal desktop, slowly injecting low-temperature glue into a glue injection hole of the inner protecting cover, inserting an inner protecting pipe which is sleeved outside the optical fiber group in advance into the through hole of the inner protecting cover along the optical fiber when the glue is not fully injected and solidified, and observing and ensuring that the glue permeates between the inner protecting pipe and the optical fiber; and (5) filling the inner protective cover with low-temperature glue, and waiting for curing to obtain the inner side packaging part.
(3) Turning: and (4) removing the masking tape and the overflowing low-temperature adhesive, and turning the inner-measuring packaging piece after the low-temperature adhesive in the inner protecting cover is completely cured.
(4) Glue injection and curing of the outer protective cover: the interface flange of the encapsulation piece is measured with interior and the combination of outer protecting cover, is about to pass the outer protecting cover bottom surface through-hole that corresponds with interface flange through-hole position for the optical fiber group, and fixed interface flange on horizontal desktop slowly pours into low temperature into to the glue injection hole of outer protecting cover into and glues, when glue is not full, the solidification, will overlap in advance in the outer protecting pipe in the optical fiber group outside inserts the through-hole of inner protecting cover along optic fibre, observes and guarantees between glue infiltration inner protecting pipe and the optic fibre. And removing the overflowed glue, and waiting for curing to obtain the optical fiber sealed interface device, as shown in fig. 5.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An optical fiber hermetic interface device, comprising: the connector flange is matched with the low-temperature sealed container, and the inner protecting cover and the outer protecting cover are respectively positioned on two sides of the connector flange;
one or more sensing optical fibers pass through the through hole on the bottom surface of the inner protecting cover, the through hole of the interface flange and the through hole of the outer protecting cover; the bottom surface of the inner protecting cover is provided with one or more glue injection holes, and the bottom surface of the outer protecting cover is provided with one or more glue injection holes; the inner space of the inner protecting cover and the inner space of the outer protecting cover are filled with glue.
2. The optical fiber hermetic interface device according to claim 1, further comprising an optical fiber inner protective tube and/or an optical fiber outer protective tube, wherein the optical fiber inner protective tube is disposed between the through hole of the bottom surface of the inner protecting cover and the optical fiber, and the optical fiber outer protective tube is disposed between the through hole of the bottom surface of the outer protecting cover and the optical fiber.
3. The fiber optic hermetic interface device of claim 2, wherein a gap exists between the inner protective tube and the interface flange, and a gap exists between the outer protective tube of the optical fiber and the interface flange.
4. The fiber optic hermetic interface device of claim 2, wherein the internal housing interior space comprises a space between the optical fiber and the inner jacket tube, and a space between the internal housing, the interface flange, and the optical fiber or the inner jacket tube; the inner space of the outer protecting cover comprises a space between the optical fiber and the outer protecting pipe and a space between the outer protecting cover, the interface flange and the optical fiber or the outer protecting pipe.
5. The method of making an optical fiber hermetic interface device according to any one of claims 1 to 4, comprising the steps of:
respectively assembling the interface flange fixed with the optical fiber with the inner protecting cover and the outer protecting cover to form an inner side or outer side packaging piece;
the interface flange is positioned in the horizontal plane, glue is slowly injected in the vertical direction through the glue injection hole on the bottom surface of the inner protecting cover or the outer protecting cover until the inner protecting cover or the outer protecting cover is filled, and the glue seal is solidified.
6. The method of claim 5, wherein the inner protective tube or the outer protective tube is inserted after injecting part or all of the glue; or
And inserting the inner side protective pipe or the outer side protective pipe, keeping a gap for enabling glue to permeate between the inner side protective pipe or the outer side protective pipe and the interface flange, and injecting the glue.
7. The method of making an optical fiber hermetic interface device according to claim 5, comprising the steps of:
combining the interface flange fixed with the optical fiber with the inner protective cover to form an inner side packaging piece;
the interface flange is positioned in the horizontal plane, the inner protective cover is positioned above the interface flange, glue is slowly injected along the vertical direction through the glue injection hole on the bottom surface of the inner protective cover until the inner protective cover is filled, and the glue seal is cured;
turning over the inner side packaging part, and combining the interface flange fixed with the optical fiber with the outer protective cover to form an outer side packaging part;
make the interface flange be in the horizontal plane, outer protecting cover is in interface flange top, through the injecting glue hole of outer protecting cover bottom surface, slowly pours into glue along vertical direction until filling outer protecting cover, and the solidification is glued and is sealed.
8. The method for manufacturing an optical fiber hermetic interface device according to claim 5, wherein the step of slowly injecting glue along a vertical direction through the glue injection hole on the bottom surface of the inner protecting cover until the inner protecting cover is filled comprises:
after injecting part or all of the glue, inserting the optical fiber inner side protective tube; or
And inserting the inner side protective pipe, keeping a gap for enabling glue to permeate between the inner side protective pipe and the interface flange, and injecting the glue.
9. The method for manufacturing an optical fiber hermetic interface device according to claim 5, wherein the step of slowly injecting glue along a vertical direction through the glue injection hole on the bottom surface of the outer protecting cover until the outer protecting cover is filled comprises:
after injecting part or all of the glue, inserting the outer protective tube of the optical fiber; or
And inserting the outer side protective pipe, keeping a gap for enabling glue to permeate between the outer side protective pipe and the interface flange, and injecting the glue.
10. The method of claim 5, wherein the optical fiber is secured to the interface flange by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110658813.XA CN113325535B (en) | 2021-06-15 | 2021-06-15 | Optical fiber airtight interface device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110658813.XA CN113325535B (en) | 2021-06-15 | 2021-06-15 | Optical fiber airtight interface device and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113325535A true CN113325535A (en) | 2021-08-31 |
| CN113325535B CN113325535B (en) | 2023-01-13 |
Family
ID=77420767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110658813.XA Active CN113325535B (en) | 2021-06-15 | 2021-06-15 | Optical fiber airtight interface device and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113325535B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325996A (en) * | 2021-11-24 | 2022-04-12 | 北京华卓精科科技股份有限公司 | Optical fiber lead-in device and optical fiber lead-in method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030024258A1 (en) * | 2000-09-07 | 2003-02-06 | Laubacher Daniel B. | Cryogenic devices |
| US20030101683A1 (en) * | 2000-06-30 | 2003-06-05 | Saes Getters S.P.A. | Evacuated panel for thermal insulation of cylindrical bodies |
| US20050147361A1 (en) * | 2003-12-29 | 2005-07-07 | Hovland Jeffrey S. | Telecommunications connector protective device |
| US20060056777A1 (en) * | 2004-09-10 | 2006-03-16 | Applied Optoelectronics, Inc. | Method and apparatus for coupling a laser to a fiber in a two-lens laser system |
| CN104808297A (en) * | 2015-04-14 | 2015-07-29 | 安庆市吉飞软件开发有限公司 | Optical fiber sealed adaption experiment assistant device |
| CN107300740A (en) * | 2017-07-24 | 2017-10-27 | 兰州大学 | A kind of optical fiber used on ultralow temperature Dewar connects sealing device soon |
| CN206975270U (en) * | 2017-07-24 | 2018-02-06 | 兰州大学 | A kind of optical fiber used on ultralow temperature Dewar connects sealing device soon |
-
2021
- 2021-06-15 CN CN202110658813.XA patent/CN113325535B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030101683A1 (en) * | 2000-06-30 | 2003-06-05 | Saes Getters S.P.A. | Evacuated panel for thermal insulation of cylindrical bodies |
| US20030024258A1 (en) * | 2000-09-07 | 2003-02-06 | Laubacher Daniel B. | Cryogenic devices |
| US20050147361A1 (en) * | 2003-12-29 | 2005-07-07 | Hovland Jeffrey S. | Telecommunications connector protective device |
| US20060056777A1 (en) * | 2004-09-10 | 2006-03-16 | Applied Optoelectronics, Inc. | Method and apparatus for coupling a laser to a fiber in a two-lens laser system |
| CN104808297A (en) * | 2015-04-14 | 2015-07-29 | 安庆市吉飞软件开发有限公司 | Optical fiber sealed adaption experiment assistant device |
| CN107300740A (en) * | 2017-07-24 | 2017-10-27 | 兰州大学 | A kind of optical fiber used on ultralow temperature Dewar connects sealing device soon |
| CN206975270U (en) * | 2017-07-24 | 2018-02-06 | 兰州大学 | A kind of optical fiber used on ultralow temperature Dewar connects sealing device soon |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325996A (en) * | 2021-11-24 | 2022-04-12 | 北京华卓精科科技股份有限公司 | Optical fiber lead-in device and optical fiber lead-in method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113325535B (en) | 2023-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102109644B (en) | There is the optical module of optical fiber feed-through | |
| US7103257B2 (en) | Hermetically sealed fiber tail assembly for polarization maintaining fiber | |
| US4295707A (en) | Feed through for optical submerged repeater | |
| US20150030293A1 (en) | Mounting and fixing structure for optical fiber of photoelectron device | |
| CN113325535B (en) | Optical fiber airtight interface device and manufacturing method thereof | |
| US5024503A (en) | Hermetic gland for optical fibres | |
| EP0598800B1 (en) | Package and packaging of fibre optic components | |
| US6081646A (en) | In-line solder seal for optical fiber | |
| CN110265281B (en) | Waterproof encapsulation of photomultiplier based on microchannel plate structure | |
| CN112782808A (en) | Optical fiber device, method for producing an optical fiber device, and aircraft | |
| CN105675167A (en) | Fiber monitoring through device for oil-immersed transformer, and preparation method for fiber monitoring through device | |
| JP6333959B2 (en) | Optical fiber penetration | |
| US6474879B1 (en) | Post assembly metallization of a device to form hermetic seal | |
| US20130108216A1 (en) | Optical fiber having core-to-core alignment | |
| JP2014215446A (en) | Optical fiber sealing structure, optical fiber assembly, device, and optical fiber sealing method | |
| CN211206841U (en) | Optical fiber coupler | |
| AU2001273311A1 (en) | Post assembly metallization of a device | |
| CN109974685B (en) | Preparation method of environment-sensitive ring | |
| CN110879061A (en) | Damp-proof and vibration-proof off-skeleton fiber optic gyroscope | |
| CN212749312U (en) | Waterproof protection structure of optical communication device and ultrahigh-reliability optical communication device | |
| CN217404576U (en) | Optical fiber isolator for inhibiting optical loss | |
| CN116400463A (en) | Packaging method of optical fiber coupler | |
| CN217689506U (en) | Optical fiber collimator and optical device | |
| CN218938577U (en) | Optical module for preventing liquid from penetrating optical cable | |
| JPS6320962Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230907 Address after: 515041 No. 15 east science and technology road, hi tech Zone, Guangdong, Shantou Patentee after: SHANTOU HIGH-TECH ZONE AOXING OPTICAL COMMUNICATION EQUIPMENT Co.,Ltd. Patentee after: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK Ltd. Address before: No.9, Guanggu Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430074 Patentee before: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK Ltd. |