CN111999821A - Straight optical fiber type cabin-penetrating optical fiber airtight adapter and connection method - Google Patents

Straight optical fiber type cabin-penetrating optical fiber airtight adapter and connection method Download PDF

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Publication number
CN111999821A
CN111999821A CN202010948899.5A CN202010948899A CN111999821A CN 111999821 A CN111999821 A CN 111999821A CN 202010948899 A CN202010948899 A CN 202010948899A CN 111999821 A CN111999821 A CN 111999821A
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China
Prior art keywords
optical fiber
cabin
optical
plug
straight
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CN202010948899.5A
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CN111999821B (en
Inventor
高泽仁
周丰
王鹏飞
辛玉军
芦春锋
孙亚斌
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Anhui Optical Fiber And Optical Cable Transmission Technology Research Institute Eighth Research Institute Of China Electronics Technology Group Corp
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Anhui Optical Fiber And Optical Cable Transmission Technology Research Institute Eighth Research Institute Of China Electronics Technology Group Corp
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Priority to CN202010948899.5A priority Critical patent/CN111999821B/en
Publication of CN111999821A publication Critical patent/CN111999821A/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3869Mounting ferrules to connector body, i.e. plugs
    • G02B6/387Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/389Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • G02B6/3894Screw-lock type
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

A straight optical fiber type cabin-penetrating optical fiber airtight adapter and a connecting method thereof comprise: a plug; the socket is fixedly connected with the plug; a first optical ferrule disposed within the plug; the second optical ferrule is matched with the first optical ferrule in position and is arranged in the socket; the first elastic piece is arranged on the first optical ferrule; and the second elastic piece is arranged on the second optical ferrule and matched with the first elastic piece. In the implementation of the embodiment, the optical fibers are connected in the plug and the socket and are connected together in the sealing area, and the optical fibers in the cabin-penetrating optical fiber air-sealing adapter are straight, so that the low loss and long-life reliability can be realized; the integrity of the cabin-penetrating optical fiber air-tight sealing adapter structure can adapt to the mechanical environment performances such as strong vibration impact resistance and the like; the two ends of the cabin-penetrating optical fiber air-tight sealing adapter are matched with the same optical fiber plug connectors.

Description

Straight optical fiber type cabin-penetrating optical fiber airtight adapter and connection method
Technical Field
The invention relates to the field of optical fiber connection, in particular to a straight optical fiber type cabin-penetrating optical fiber airtight adapter and a connection method.
Background
At present, a common optical fiber airtight adapter bundling optical fiber airtight adapter is provided with an optical fiber buffer cavity and a bending limiting device to realize bending of redundant optical fibers, and the long-term bending of the optical fibers is low in reliability under the conditions of strong vibration and impact; in addition, the conventional cabin-penetrating optical fiber air-tight sealing adapter is formed by assembling and connecting the socket body 1 and the sealing flange 10 through the connecting sleeve 9, so that the optical fiber in the sealing cavity is bent less, but the sectional assembly greatly reduces the strong vibration impact resistance of the product, and the adaptability of aerospace application is poor.
Disclosure of Invention
The invention aims to overcome the technical problem of low reliability of an optical fiber airtight adapter in the prior art, and provides a straight optical fiber type cabin-penetrating optical fiber airtight adapter and a connecting method.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a straight fiber-optic bulkhead fiber-optic hermetic adapter comprising:
a plug;
the socket is fixedly connected with the plug;
a first optical ferrule disposed within the plug;
the second optical ferrule is matched with the first optical ferrule in position and is arranged in the socket;
the first elastic piece is arranged on the first optical ferrule;
and the second elastic piece is arranged on the second optical ferrule and matched with the first elastic piece.
The straight optical fiber type cabin-penetrating optical fiber airtight adapter is characterized in that one end, far away from the socket, of the plug is the same as one end, far away from the plug, of the socket in shape.
The invention relates to a straight optical fiber type cabin-penetrating optical fiber airtight adapter, wherein a first elastic piece and a second elastic piece are springs.
The straight optical fiber type cabin-penetrating optical fiber airtight adapter is characterized in that the number of the first optical insertion cores and the number of the second optical insertion cores are respectively multiple and are the same.
The invention relates to a straight optical fiber type cabin-penetrating optical fiber airtight adapter, which comprises:
a first screw disposed within the plug;
and the first screw hole is arranged in the socket and matched with the first screw rod.
A method for connecting a straight optical fiber type cabin-penetrating optical fiber airtight adapter comprises the following steps:
designing an outer shell of the cabin-crossing optical fiber air-tight sealing adapter, wherein two ends of the outer shell have the same structure and can be connected with optical fiber plug connectors of the same type;
the optical fiber outside the cabin is fixed with the socket in advance to realize that the optical fiber outside the cabin is straight, and then the optical fiber inside the cabin is ensured to be straight through fixed-length stripping and optical ferrule manufacturing of the optical fiber inside the cabin;
the multi-core optical fiber inserting core at the outer end and the inner end of the cabin ensures the connection optical performance of the two ends of the cabin-penetrating optical fiber air-tight sealing adapter and the optical fiber plug connector through the compression floating of the spring;
the connection of the screws at the two ends and the screw rod can realize the fixation between the plug and the socket and the integrity of the whole structure.
A method for connecting a straight optical fiber type cabin-penetrating optical fiber airtight adapter comprises the following steps:
the assembly of the outer end of the cabin ensures that one end which penetrates into the optical fiber firstly is straight;
the optical fiber and the socket are hermetically sealed through brazing sealing, and the sealing area is designed at the other end of the mounting flange surface of the sealing ring, so that the position of the hermetically sealed area in the cabin is ensured, and the reliability of hermetic sealing is further improved;
the optical fiber at the inner end of the cabin is ensured to be straight through fixed length stripping of the optical fiber in the cabin and manufacturing of the optical ferrule and through fixing of the ferrule and assembly with the plug.
Compared with the prior art, the invention has the beneficial effects that:
in the implementation of the embodiment, the optical fibers are connected in the plug and the socket and are connected together in the sealing area, and the optical fibers in the cabin-penetrating optical fiber air-sealing adapter are straight, so that the low loss and long-life reliability can be realized; the integrity of the cabin-penetrating optical fiber air-tight sealing adapter structure can adapt to the mechanical environment performances such as strong vibration impact resistance and the like; the two ends of the cabin-penetrating optical fiber air-tight sealing adapter are matched with the same optical fiber plug connectors.
Drawings
FIG. 1 is a cross-sectional view of a straight fiber type cabin-penetrating fiber hermetic adapter according to the present invention;
FIG. 2 is a front view of a straight fiber type cabin-penetrating fiber hermetic adapter according to the present invention;
FIG. 3 is a view of a straight fiber type cabin-penetrating fiber hermetic adapter and plug connection seat according to the present invention;
FIG. 4 is a view of another straight fiber-type bulkhead fiber-optic hermetic adapter and plug-in connector according to the present invention;
FIG. 5 is a view of another straight fiber type cabin-piercing fiber hermetic adapter and plug connection receptacle according to the present invention;
FIG. 6 is a schematic view of an embodiment of a straight fiber type cabin-penetrating optical fiber hermetic adapter connection method according to the present invention;
FIG. 7 is a schematic view of another embodiment of a straight fiber type cabin-through fiber hermetic adapter connection method according to the present invention;
Detailed Description
Referring to fig. 1-7, it should be understood by those skilled in the art that the terms "upper", "lower", "one end", "the other end", etc., in the present disclosure, are used in an orientation or positional relationship shown in the drawings, which is only for convenience of description and simplicity of description, but do not indicate or imply that the referenced device or component must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore the above terms should not be construed as limiting the present invention.
It should be noted that, at present, a common optical fiber airtight adapter has an optical fiber buffer cavity and a bending limiting device to realize bending of surplus optical fibers, and the long-term bending of the optical fibers is low in reliability under the conditions of strong vibration and impact; in addition, the conventional cabin-penetrating optical fiber air-tight sealing adapter is formed by assembling and connecting the socket body 1 and the sealing flange 10 through the connecting sleeve 9, so that the optical fiber in the sealing cavity is bent less, but the sectional assembly greatly reduces the strong vibration impact resistance of the product, and the adaptability of aerospace application is poor. ,
based on this, the present embodiment provides a straight optical fiber type cabin-penetrating optical fiber airtight adapter, including:
a plug 100;
a socket 200 fixedly connected to the plug 100;
a first optical ferrule 300 disposed within the plug 100;
a second optical ferrule 400 positionally mated with the first optical ferrule 300 and disposed within the receptacle 200;
a first elastic member 500 disposed on the first optical ferrule 300;
the second elastic member 600 is disposed on the second optical ferrule 400 and engaged with the first elastic member 500.
In the implementation of the embodiment, the optical fibers 1100 are connected in the plug and the socket and connected together in the sealing area 1200, and the optical fibers in the cabin-through optical fiber air-tight sealing adapter are straight, so that low loss and long-life reliability can be realized; the integrity of the cabin-penetrating optical fiber air-tight sealing adapter structure can adapt to the mechanical environment performances such as strong vibration impact resistance and the like; the two ends of the cabin-penetrating optical fiber air-tight sealing adapter are matched with the same optical fiber plug connectors.
In some embodiments, the end of plug 100 distal to receptacle 200 is the same shape as the end of receptacle 200 distal to plug 100.
The two ends of the plug far away from the socket have the same structure and can be connected with the optical fiber plug connectors of the same type
In some embodiments, the first elastic member 500 and the second elastic member 600 are springs.
The compression floating of the spring ensures the connection optical performance of two ends of the cabin-penetrating optical fiber air-tight sealing adapter and the optical fiber plug connector, the plug area is a high-voltage area, and the socket area is a low-voltage area.
In some embodiments, the first optical ferrule and the second optical ferrule are respectively multiple in number and the number is the same.
The plurality of first optical ferrules and the second optical ferrules are convenient to connect the plurality of optical fibers.
In some embodiments, the method comprises:
a first screw 700 provided in the plug 100;
the first screw hole 800 is disposed in the socket 200 and is engaged with the first screw 700.
The first screw 700 and the first screw hole 800 connect the plug and the socket, and may be further fixedly connected by a screw 900.
The embodiment of the invention provides a method for connecting a straight optical fiber type cabin-penetrating optical fiber airtight adapter, which comprises the following steps:
s601, designing an outer shell of the cabin-crossing optical fiber air-tight sealing adapter, wherein two ends of the outer shell have the same structure and can be connected with optical fiber plug connectors of the same type;
s602, the optical fiber outside the cabin is fixed with the socket in advance to realize that the optical fiber outside the cabin is straight, and then the optical fiber inside the cabin is ensured to be straight through fixed-length stripping and optical ferrule manufacturing of the optical fiber inside the cabin;
s603, the multi-core optical fiber inserting core at the outer end and the inner end of the cabin ensures the connection optical performance between the two ends of the cabin-penetrating optical fiber air-tight sealing adapter and the optical fiber plug connector through the compression floating of the spring;
and S604, the connection of the screws and the screw rods at the two ends can realize the fixation between the plug and the socket and the integrity of the whole structure.
As shown in fig. 1 and 6, the optical fiber and the optical ferrule at the outer end of the cabin are pre-assembled and fixed with the socket, so that the optical fiber at the outer end of the cabin is straight, air sealing between the optical fiber and the socket is realized by brazing, then the optical fiber at the inner end of the cabin is stripped in a fixed length and manufactured with the optical ferrule to ensure the length consistency of the multi-core optical fiber, and then the optical fiber ferrule in the cabin is assembled and fixed with the plug to realize the straight optical fiber in the cabin and the structure of the cabin-through optical fiber connector.
The embodiment of the invention also provides a method for connecting the straight optical fiber type cabin-penetrating optical fiber airtight adapter, which comprises the following steps:
s701, assembling through the outer end of the cabin, and ensuring that one end of the optical fiber which penetrates into the cabin first is straight;
s702, the optical fiber and the socket are hermetically sealed through brazing sealing, and the sealing area is designed at the other end of the mounting flange surface of the sealing ring, so that the position of the hermetically sealed area in the cabin is ensured, and the reliability of hermetic sealing is further improved;
s703, stripping off the optical fiber in the cabin at a fixed length, manufacturing the optical ferrule, and fixing the ferrule and assembling the ferrule with the plug to ensure that the optical fiber at the end in the cabin is also straight.
As shown in fig. 1 and 7, the scheme is that an optical fiber core insert and a seat core are firstly installed at one end of a socket of the cabin-penetrating optical fiber air-tight sealing adapter, so that the optical fiber at the end of the socket is straight; the optical fiber realizes air sealing in the middle of the socket by a brazing sealing technology, and the optical fiber in the cabin is stripped in a fixed length and manufactured with an optical fiber inserting core after sealing is finished; then the plug is sleeved and matched with the socket, and the optical fiber at the plug end is ensured to be straight.
The invention also provides an embodiment, firstly, the optical fiber outside the cabin and the optical ferrule are assembled on the socket to ensure that the optical fiber outside the cabin is straight, secondly, the air sealing between the optical fiber and the socket is realized through the braze welding sealing, then, the fixed length stripping and the optical ferrule manufacturing of the optical fiber inside the cabin are carried out to ensure the length consistency of the optical fiber, the ferrule at the end inside the cabin is assembled with the plug, and finally, the plug and the socket are assembled and fixed through the screw and the screw rod to ensure the integrity of the structure.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, which is defined by the claims.

Claims (7)

1. The utility model provides a straight airtight adapter of cabin optic fibre formula cross which characterized in that includes:
a plug;
the socket is fixedly connected with the plug;
a first optical ferrule disposed within the plug;
the second optical ferrule is matched with the first optical ferrule in position and is arranged in the socket;
the first elastic piece is arranged on the first optical ferrule;
and the second elastic piece is arranged on the second optical ferrule and matched with the first elastic piece.
2. The through-the-cabin fiber hermetic adapter according to claim 1, wherein an end of the plug away from the socket is the same shape as an end of the socket away from the plug.
3. The through-the-cabin fiber hermetic adapter according to claim 2, wherein the first elastic member and the second elastic member are springs.
4. The straight fiber type cabin-penetrating fiber airtight adapter according to claim 3, wherein the first optical ferrule and the second optical ferrule are respectively plural in number and are the same in number.
5. The straight fiber through-the-cabin fiber hermetic adapter according to claim 4, comprising:
a first screw disposed within the plug;
and the first screw hole is arranged in the socket and matched with the first screw rod.
6. A method for connecting a straight optical fiber type cabin-penetrating optical fiber airtight adapter is characterized by comprising the following steps:
designing an outer shell of the cabin-crossing optical fiber air-tight sealing adapter, wherein two ends of the outer shell have the same structure and can be connected with optical fiber plug connectors of the same type;
the optical fiber outside the cabin is fixed with the socket in advance to realize that the optical fiber outside the cabin is straight, and then the optical fiber inside the cabin is ensured to be straight through fixed-length stripping and optical ferrule manufacturing of the optical fiber inside the cabin;
the multi-core optical fiber inserting core at the outer end and the inner end of the cabin ensures the connection optical performance of the two ends of the cabin-penetrating optical fiber air-tight sealing adapter and the optical fiber plug connector through the compression floating of the spring;
the connection of the screws at the two ends and the screw rod can realize the fixation between the plug and the socket and the integrity of the whole structure.
7. A method for connecting a straight optical fiber type cabin-penetrating optical fiber airtight adapter is characterized by comprising the following steps:
the assembly of the outer end of the cabin ensures that one end which penetrates into the optical fiber firstly is straight;
the optical fiber and the socket are hermetically sealed through brazing sealing, and the sealing area is designed at the other end of the mounting flange surface of the sealing ring, so that the position of the hermetically sealed area in the cabin is ensured, and the reliability of hermetic sealing is further improved;
the optical fiber at the inner end of the cabin is ensured to be straight through fixed length stripping of the optical fiber in the cabin and manufacturing of the optical ferrule and through fixing of the ferrule and assembly with the plug.
CN202010948899.5A 2020-09-10 2020-09-10 Straight optical fiber type cabin penetrating optical fiber airtight adapter and connecting method Active CN111999821B (en)

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CN202010948899.5A CN111999821B (en) 2020-09-10 2020-09-10 Straight optical fiber type cabin penetrating optical fiber airtight adapter and connecting method

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Application Number Priority Date Filing Date Title
CN202010948899.5A CN111999821B (en) 2020-09-10 2020-09-10 Straight optical fiber type cabin penetrating optical fiber airtight adapter and connecting method

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CN111999821B CN111999821B (en) 2024-04-05

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004151296A (en) * 2002-10-30 2004-05-27 Tomoegawa Paper Co Ltd Method for connecting optical fiber and connection structure
CN102809785A (en) * 2012-08-21 2012-12-05 上海方奥通信技术有限公司 Multi-core optical cable connector
CN103018847A (en) * 2012-12-26 2013-04-03 中国航天时代电子公司 Optical fiber cabin-penetrating sealing connection socket device used for sealing cabin
CN103105647A (en) * 2013-02-21 2013-05-15 中国电子科技集团公司第八研究所 Optical fiber airtight connecting base
JP2014215446A (en) * 2013-04-25 2014-11-17 株式会社フジクラ Optical fiber sealing structure, optical fiber assembly, device, and optical fiber sealing method
CN205427241U (en) * 2016-01-21 2016-08-03 中国电子科技集团公司第二十三研究所 Airtight crossing cabin connector of optic fibre
CN208076770U (en) * 2018-05-04 2018-11-09 沈阳兴华航空电器有限责任公司 A kind of optical fiber connector
CN209656937U (en) * 2019-04-01 2019-11-19 西安仕贤科技有限公司 A kind of airtight optical fiber adapter
CN111541100A (en) * 2020-05-26 2020-08-14 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) Full-sea deep photoelectric mixed watertight connector
CN212647078U (en) * 2020-09-10 2021-03-02 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) Straight optical fiber type cabin-penetrating optical fiber airtight adapter

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004151296A (en) * 2002-10-30 2004-05-27 Tomoegawa Paper Co Ltd Method for connecting optical fiber and connection structure
CN102809785A (en) * 2012-08-21 2012-12-05 上海方奥通信技术有限公司 Multi-core optical cable connector
CN103018847A (en) * 2012-12-26 2013-04-03 中国航天时代电子公司 Optical fiber cabin-penetrating sealing connection socket device used for sealing cabin
CN103105647A (en) * 2013-02-21 2013-05-15 中国电子科技集团公司第八研究所 Optical fiber airtight connecting base
JP2014215446A (en) * 2013-04-25 2014-11-17 株式会社フジクラ Optical fiber sealing structure, optical fiber assembly, device, and optical fiber sealing method
CN205427241U (en) * 2016-01-21 2016-08-03 中国电子科技集团公司第二十三研究所 Airtight crossing cabin connector of optic fibre
CN208076770U (en) * 2018-05-04 2018-11-09 沈阳兴华航空电器有限责任公司 A kind of optical fiber connector
CN209656937U (en) * 2019-04-01 2019-11-19 西安仕贤科技有限公司 A kind of airtight optical fiber adapter
CN111541100A (en) * 2020-05-26 2020-08-14 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) Full-sea deep photoelectric mixed watertight connector
CN212647078U (en) * 2020-09-10 2021-03-02 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) Straight optical fiber type cabin-penetrating optical fiber airtight adapter

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