WO2020133981A1 - Tête de connexion de fibre optique, adaptateur de fibre optique et connecteur de fibre optique - Google Patents

Tête de connexion de fibre optique, adaptateur de fibre optique et connecteur de fibre optique Download PDF

Info

Publication number
WO2020133981A1
WO2020133981A1 PCT/CN2019/093165 CN2019093165W WO2020133981A1 WO 2020133981 A1 WO2020133981 A1 WO 2020133981A1 CN 2019093165 W CN2019093165 W CN 2019093165W WO 2020133981 A1 WO2020133981 A1 WO 2020133981A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical fiber
concave
sealing ring
fiber connector
convex
Prior art date
Application number
PCT/CN2019/093165
Other languages
English (en)
Chinese (zh)
Inventor
徐庆
罗科杰
王国伟
Original Assignee
浙江超前通信科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 浙江超前通信科技股份有限公司 filed Critical 浙江超前通信科技股份有限公司
Publication of WO2020133981A1 publication Critical patent/WO2020133981A1/fr

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
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3869—Mounting ferrules to connector body, i.e. plugs
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs

Definitions

  • the invention relates to the field of data communication equipment, in particular to an optical fiber connector, optical fiber adapter and optical fiber connector.
  • Both ends of the fiber adapter can be inserted into fiber connectors of different interface types to achieve conversion between different interfaces such as FC, SC, ST, LC, MTRJ, MPO, E2000, etc., and are widely used in optical fiber distribution frames (ODF), optical fiber communication equipment, Instruments, etc., excellent performance, stable and reliable.
  • Patent CN107656339A discloses an optical fiber adapter.
  • the optical fiber adapter 200 includes an adapter dust cap 230.
  • An end of the adapter dust cap 230 is provided with an adapter accommodating cavity for accommodating the optical fiber adapter 200.
  • the accommodating cavity is used for
  • the optical fiber adapter 200 is inserted into the dust cap 230 to accommodate the socket 201.
  • the trumpet-shaped opening of the sleeve on the inner sleeve member 140 is aligned with the positioning key 2014 on the slot, and the inner sleeve member 140 is inserted
  • the slot 2012 allows the ferrule 150 to be inserted into the cavity 2011, the locking point 1304 of the optical fiber connector slides into the sliding slot 2015 of the optical fiber adapter, and the optical fiber socket 201 is rotated to make the lock
  • the tight point 1304 is slid to the end of the sliding groove 2015 to achieve locking.
  • the optical fiber connector is seamlessly connected to the C-shaped slot of the optical fiber adapter through the sleeve with the C-shaped opening of the optical fiber connector, and the blind insertion of the foregoing optical fiber connector is realized, and the operation is more convenient, and Can realize the plug and play of the optical fiber connector, and also has better waterproof performance.
  • the above solution achieves the function of inserting the optical fiber connector 100 into the optical fiber adapter through the dual connection relationship between the C-shaped open sleeve and the C-shaped slot, the locking point 1304 of the optical fiber connector and the sliding groove 2015 of the optical fiber adapter. It is more complicated from a structural point of view.
  • the optical fiber connector and the optical fiber adapter are relatively fixed by locking points, slide grooves and sealing rings. The contact point of the locking point and the sliding groove of this fixing method is limited.
  • the optical fiber connector and the optical fiber adapter The gap between them is completely sealed by the sealing ring, which results in the gap between the optical fiber connector and the optical fiber adapter being too large, the processing technology is not up to the standard, or the aging of the sealing ring performance has an effect on the sealing effect.
  • the sealing ring is only an elastic material, and the radial position between the optical fiber connector and the optical fiber adapter cannot be limited, and the relative sway also affects the sealing performance.
  • the present invention provides an optical fiber connector, an optical fiber adapter and an optical fiber connector with simpler connection and better sealing effect.
  • an optical fiber connector 10 includes an optical fiber 20 and a housing.
  • the housing connects the optical fiber to an optical fiber adapter.
  • the housing is a concave outer casing element 11, the bottom shell of the concave inner cavity is provided with a fiber-optic hole 11a, and the bottom shell is provided with a ring-shaped elastic sealing layer centered on the line hole; on the side wall of the concave inner cavity With connecting internal thread.
  • the bottom shell of the concave inner cavity is provided with an annular groove centered on the through hole, and an elastic sealing ring 12 is provided in the annular groove.
  • a convex dust cap 13 is also included.
  • the diameter of the dust cap 13 is adapted to the diameter of the concave outer cover element 11 so that the convex dust cap 13 fits within the concave outer cover element 11 and the convex butt portion
  • the side wall is provided with an external thread 13a, and the external thread 13a is adapted to the internal thread of the concave inner cavity side wall;
  • the bottom of the convex dust cap 13 is also provided with a seal ring wall extending toward the inner cavity, the seal ring wall
  • the diameter corresponds to the sealing ring 12 of the outer casing element 11.
  • the ring width of the sealing ring wall is smaller than the ring width of the sealing ring 12.
  • the outer shell of the outer cover element 11 is provided with a connecting lanyard 14, and the connecting lanyard 14 is connected to the convex dust cap 13.
  • the bottom shell of the concave inner cavity extends vertically along the wire hole to the concave inner cavity to form a ring wall, and the wire hole in the ring wall butts with the ferrule assembly 40 and fixes its position.
  • the heat shrinkable tube 15 with glue
  • the inside of the heat shrinkable tube 15 is sealed and fixed with the optical fiber 20
  • the outer end of the heat shrinkable tube 15 is fixed on the jacket element 11, The other end is sleeved with the tail sleeve 16.
  • the present invention also provides an optical fiber adapter 30, characterized in that it includes:
  • a cylindrical body 31, one end of the cylindrical body is a convex end 31a adapted to butt with the diameter of the concave outer sheath element 11 of the optical fiber connector 10, the outer wall of the convex end 31a forms an external thread 31b, the external thread 31b and the optical fiber
  • the female thread of the inner wall of the concave cavity of the connector 10 is adapted; the convex end and the opposite end of the cylindrical body are provided with slots for adapting the ferrule assembly 40; the top surface of the convex end 31a is also provided with a ring A raised sealing ring wall whose diameter corresponds to the ring width and position of the sealing ring 12 of the optical fiber connector jacket element 11 when the external thread 31b rotates in coordination with the internal thread of the concave cavity side wall of the optical fiber connector 10 The sealing ring wall is pressed against the sealing ring 12.
  • the optical fiber adapter 30 further includes a concave dust cap 32, the diameter of the dust cap 32 is adapted to the diameter of the convex end 31a, so that the concave dust cap 32 is sleeved on the convex end 31a, and the concave shape
  • the inner wall of the inner wall of the dust cap 32 is provided with internal threads, which are adapted to the external threads 31b; the bottom of the dust cap 32 is provided with an annular groove, and an elastic sealing ring 32a is provided in the annular groove when the concave shape
  • the internal thread of the dust cap 32 and the external thread 31b are rotationally matched so that the top seal ring wall of the convex end 31a is pressed against the dust cap seal ring 32a.
  • the present invention also provides an optical fiber connector, including an optical fiber connector 10, an optical fiber 20, an optical fiber adapter 30, and a ferrule assembly 40), the ferrule assembly 40 is inserted between the optical fiber connector 10 and the optical fiber adapter 30 , The optical fiber 20 is connected to the ferrule assembly 40 through the optical fiber connector 10, characterized in that
  • One end of the cylindrical body 31 of the optical fiber adapter 30 is a convex end 31a, and the convex end 31a is adapted to the diameter of the inner cavity of the concave sheath element 11 of the optical fiber connector 10.
  • the outer wall of the convex end 31a forms an external thread 31b.
  • the external thread 31b is adapted to the internal thread of the side wall of the concave cavity of the optical fiber connector 10;
  • the convex end 31a and the opposite end of the cylindrical body are respectively provided with slots for adapting the ferrule assembly 40;
  • the top surface of the convex end 31a is also provided with a ring-shaped convex sealing ring wall.
  • the ring width and position of the sealing ring wall correspond to the ring width and position of the optical fiber connector 10 outer cover member 11 sealing ring 12 when the external thread 31b and the optical fiber
  • the internal threads of the concave inner cavity side wall of the connecting head 10 cooperate to rotate and squeeze the seal ring wall against the seal ring 12.
  • the optical fiber adapter and the dust cap are all threaded, and the top surface between the two pairs is provided with a sealing ring wall and an elastic sealing ring Correspondingly fit, so that after the thread is tightened, the sealing ring wall and the elastic sealing ring are correspondingly sealed and fitted. Moreover, the screwing pressure of the screw thread makes the sealing effect of the sealing ring wall and the elastic sealing ring better, and the sealing performance is high.
  • FIG. 1 is an exploded view of the optical fiber connector of the present invention.
  • FIG. 2 is a schematic structural view of the optical fiber connector of the present invention.
  • FIG. 3 is a schematic structural view of the optical fiber connector of the present invention.
  • FIG. 4 is a schematic structural diagram of the optical fiber adapter of the present invention.
  • Figure 5 is an exploded view of the fiber optic adapter of the present invention.
  • FIG. 6 is a cross-sectional view of the optical fiber adapter of the present invention.
  • 10-fiber connector 11-concave jacket element, 11a-fiber cable hole, 12-seal ring, 13-convex dust cap, 13a-external thread, 14-connection lanyard, 15-band Rubber heat shrinkable sleeve, 16-tail sleeve, 20-fiber, 30-fiber adapter, 31-barrel body, 31a-male end, 31b-male thread, 32-concave dust cap, 32a-seal ring, 33-nut, 34-connect lanyard, 40-ferrule assembly.
  • the optical fiber connector and the dust cap are all threaded between the optical fiber adapter and the dust cap, and the top surface between the two pairs is provided with a seal ring wall Correspondingly cooperates with the elastic sealing ring, so that after the screw thread is tightened, the sealing ring wall and the elastic sealing ring are just in sealing fit, and the screw tightening pressure makes the sealing ring wall and the elastic sealing ring have a better sealing effect.
  • the present invention provides an optical fiber connector, including an optical fiber connector 10, an optical fiber 20, an optical fiber adapter 30, and a ferrule assembly 40.
  • the ferrule assembly 40 is inserted into the optical fiber connector 10 and the optical fiber adapter 30 In the meantime, the optical fiber 20 is connected to the ferrule assembly 40 through the optical fiber connector 10).
  • One end of the cylindrical body 31 of the optical fiber adapter 30 is a convex end 31a, and the convex end 31a is adapted to the diameter of the inner cavity of the concave sheath element 11 of the optical fiber connector 10.
  • the outer wall of the convex end 31a forms an external thread 31b.
  • the external thread 31b is adapted to the internal thread of the concave inner cavity side wall of the optical fiber connector 10; the convex end 31a and the opposite end of the cylindrical body are each provided with a slot for adapting the ferrule assembly 40; the convex end 31a
  • the top surface is also provided with an annular convex sealing ring wall, the ring width and position of the sealing ring wall correspond to the ring width and position of the sealing ring 12 of the optical fiber connector jacket element 11, when the external thread 31b is concave with the optical fiber connector (10)
  • the internal threads of the side wall of the inner cavity cooperate to rotate and squeeze the seal ring wall against the seal ring 12.
  • the above structure makes the optical fiber connector and the optical fiber adapter screw tight, the sealing ring wall and the elastic sealing ring on the interface between the optical fiber connector and the optical fiber adapter are pressed, and the screw tightening makes the distance between the two closer and the sealing ring wall squeezed The greater the pressure, the better the sealing effect of the seal ring wall and the elastic seal ring.
  • a single optical fiber connector (10) structure as shown in FIGS. 1 and 3, includes an optical fiber 20, a concave jacket element 11, a sealing ring 12, a connection lanyard 14, a convex dust cap 13, a tail sleeve 16,
  • a heat shrinkable tube 15 with glue, a lanyard 14 is provided on the outer shell of the outer cover element 11, and a convex dust cap 13 is connected with the lanyard 14, the heat shrinkable tube 15 with glue is sealed and fixed with the optical fiber 20, and One end of the rubber heat shrinkable sleeve 15 is fixed on the outer sleeve element 11 and the other end is sleeved with the tail sleeve 16.
  • the bottom shell of the concave outer casing element 11 extends vertically along the thread hole to the concave inner cavity to form a ring wall, and the thread hole in the ring wall butts with the ferrule assembly 40 and fixes its position.
  • the inner wall of the concave outer casing element 11 is provided with a connecting internal thread, and the bottom shell of the inner cavity is provided with an optical fiber passing hole 11a, and the bottom shell is provided with a circular groove centered on the passing hole.
  • the dust cap 13 has a convex shape, and the diameter of the dust cap 13 is adapted to the diameter of the concave outer cover element 11, so that the convex dust cap 13 is fitted in the concave outer cover element 11, and the side wall of the convex butt portion is provided External thread 13a, the external thread 13a is adapted to the internal thread of the side wall of the concave inner cavity; the bottom of the convex dust cap 13 is also provided with a seal ring wall extending toward the inner cavity, the ring width and position of the seal ring wall Corresponding to the sealing ring 12 of the outer covering element, when the external thread 13a rotates in cooperation with the internal thread of the concave cavity side wall, the sealing ring wall is pressed against the sealing ring 12.
  • the function of the dust cap is to cover the dust cap when the connector is not in use to ensure a clean environment.
  • the dust cap of this structure is easy to install with the connector, and the sealing effect is good.
  • the ring width of the seal ring wall is smaller than the ring width of the seal ring 12, and an arc-shaped protrusion is formed on the contact surface of the seal ring wall and the seal ring 12, or
  • the shape of the ribs, arc-shaped protrusions, or ribs can be inserted deeper into the seal ring, so that the seal ring wall and the seal ring 12 are more tightly combined, and the waterproof effect is better.
  • An optical fiber adapter (30) as shown in FIGS. 4-6, includes a cylindrical body 31, and one end of the cylindrical body is a convex end 31a adapted to butt with a diameter of a concave outer sheath element 11 of an optical fiber connector 10, the An outer thread 31b is formed on the outer wall of the convex end 31a, and the outer thread 31b is adapted to the inner thread of the concave inner cavity side wall of the optical fiber connector 10; the convex end and the opposite end of the cylindrical body are each provided with an adapting ferrule assembly 40 slot; the top surface of the convex end 31a is also provided with a ring-shaped raised sealing ring wall, the diameter of the sealing ring wall corresponds to the optical fiber connector 10 outer cover member 11 sealing ring 12 ring width, position corresponding to the external thread 31b rotates in cooperation with the internal thread of the concave inner cavity side wall of the optical fiber connector 10 and squeezes the seal ring wall on the seal ring 12.
  • a concave dust cap 32 is also included.
  • the diameter of the dust cap 32 is adapted to the diameter of the convex end 31a, so that the concave dust cap 32 is fitted on the convex end 31a, and the concave dust cap 32
  • the side wall of the inner cavity is provided with an internal thread, and the internal thread is adapted to the external thread 31b; the bottom groove of the dust cap 32 is provided with an elastic seal ring.
  • the external thread 31b is rotationally adapted so that the top seal ring wall of the male end 31a is pressed against the dust cap 32 seal ring.
  • One end of the connecting lanyard 34 is sleeved on the concave dust cap 32, and the other end is sleeved between the cylindrical body 31 and the nut 33.
  • the role of the dust cap is to cover the adapter port when not in use to ensure a clean environment.
  • the dust cap and adapter of this structure are easy to install and have a good sealing effect.

Landscapes

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

Abstract

La présente invention concerne une tête de connexion de fibre optique, comprenant une fibre optique et un boîtier. La fibre optique est jointe bout à bout à l'adaptateur de fibre optique par le boîtier qui est un élément de gaine externe concave; un trou traversant de fibre optique est formé dans une cavité interne concave au fond du boîtier; une couche d'étanchéité élastique en forme d'anneau avec le trou traversant au centre est formée sur le fond de boîtier; un filetage de liaison interne est formé sur la paroi latérale de la cavité interne concave. L'invention concerne en outre un adaptateur de fibre optique pour la tête de connexion de fibre optique. L'adaptateur de fibre optique comprend un corps en forme de cylindre; une extrémité du corps en forme de cylindre est une extrémité convexe adaptée au diamètre de l'élément de gaine externe concave pour un assemblage bout à bout; un filetage externe est formé sur la paroi latérale externe de l'extrémité convexe; le filetage externe est adaptatif au filetage interne sur la paroi latérale de la cavité interne concave; l'extrémité convexe et l'extrémité opposée du corps en forme de cylindre sont chacune pourvues d'une fente s'adaptant à un composant de noyau d'obturation; une paroi annulaire d'étanchéité en saillie en forme d'anneau est formée sur la surface supérieure de l'extrémité convexe, le diamètre de la paroi annulaire d'étanchéité correspondant à la largeur et à la position de la bague d'étanchéité de l'élément de gaine externe. Le filetage externe peut tourner conjointement avec le filetage interne de manière correspondante pour rendre la paroi annulaire d'étanchéité extrudée sur la bague d'étanchéité.
PCT/CN2019/093165 2018-12-28 2019-06-27 Tête de connexion de fibre optique, adaptateur de fibre optique et connecteur de fibre optique WO2020133981A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811622771.9 2018-12-28
CN201811622771.9A CN109521532B (zh) 2018-12-28 2018-12-28 光纤连接头、光纤适配器及光纤连接器

Publications (1)

Publication Number Publication Date
WO2020133981A1 true WO2020133981A1 (fr) 2020-07-02

Family

ID=65798314

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/093165 WO2020133981A1 (fr) 2018-12-28 2019-06-27 Tête de connexion de fibre optique, adaptateur de fibre optique et connecteur de fibre optique

Country Status (2)

Country Link
CN (1) CN109521532B (fr)
WO (1) WO2020133981A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109521532B (zh) * 2018-12-28 2020-07-03 浙江超前通信科技股份有限公司 光纤连接头、光纤适配器及光纤连接器
CN110542952B (zh) 2019-07-26 2021-05-18 华为技术有限公司 一种光纤连接头以及光纤连接器
CN113267857B (zh) * 2021-04-06 2022-05-03 国网河北省电力有限公司衡水供电分公司 一种光纤配线架用防尘装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201383588Y (zh) * 2008-12-24 2010-01-13 西安西康科技有限责任公司 光电混装连接器
CN102870023A (zh) * 2012-06-26 2013-01-09 华为技术有限公司 光纤连接头、光纤适配器及光纤连接器
CN106154429A (zh) * 2015-06-09 2016-11-23 罗森伯格技术（昆山）有限公司 光纤连接器的密封保护盒
CN109521532A (zh) * 2018-12-28 2019-03-26 浙江超前通信科技股份有限公司 光纤连接头、光纤适配器及光纤连接器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209281003U (zh) * 2018-12-28 2019-08-20 浙江超前通信科技股份有限公司 光纤连接头、光纤适配器及光纤连接器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201383588Y (zh) * 2008-12-24 2010-01-13 西安西康科技有限责任公司 光电混装连接器
CN102870023A (zh) * 2012-06-26 2013-01-09 华为技术有限公司 光纤连接头、光纤适配器及光纤连接器
CN106154429A (zh) * 2015-06-09 2016-11-23 罗森伯格技术（昆山）有限公司 光纤连接器的密封保护盒
CN109521532A (zh) * 2018-12-28 2019-03-26 浙江超前通信科技股份有限公司 光纤连接头、光纤适配器及光纤连接器

Also Published As

Publication number Publication date
CN109521532A (zh) 2019-03-26
CN109521532B (zh) 2020-07-03

Similar Documents

Publication Publication Date Title
WO2020133981A1 (fr) Tête de connexion de fibre optique, adaptateur de fibre optique et connecteur de fibre optique
CN111308615B (zh) 光纤连接器插头、光纤适配器和光纤连接器
US10126508B2 (en) Fiber optic connectors having a ferrule with an integral ferrule insertion stop
RU2722548C1 (ru) Волоконно-оптическая вилка, волоконно-оптический адаптер и узел волоконно-оптического коннектора
TWI554798B (zh) Fiber optic connectors, fiber optic adapters and fiber optic connectors
WO2016206594A1 (fr) Ensemble connecteur de fibres optiques
WO2016184014A1 (fr) Capuchon de protection de fiche, ensemble connecteur de fibre optique, fiche de fibre optique et dispositif réseau
US4339171A (en) Fiber optic cable retainer member
WO2021047001A1 (fr) Adaptateur et ensemble raccord de fibre optique
WO2018023837A1 (fr) Connecteur de fibres optiques
WO2023273703A1 (fr) Connecteur de fibre optique étanche à l'eau extérieur
CN108761657B (zh) 一种防水连接器、适配器以及防水连接器组件
WO2012016462A1 (fr) Connecteur de fibres optiques étanche et dispositif de communication de plein air
WO2021147253A1 (fr) Tête de connexion de fibre optique, adaptateur de fibre optique et ensemble de connexion de fibre optique
WO2020133423A1 (fr) Connecteur de fibre optique, fibre optique préfabriquée, adaptateur, boîte à fibre optique et ensemble de connexion de fibre optique
JP7459246B2 (ja) プリコネクタ及び通信装置
CN210270276U (zh) 光纤连接器
CN210270275U (zh) 光纤连接器
JP2002323641A (ja) 光ファイバ用コネクタ
WO2022247081A1 (fr) Connecteur préfabriqué, coupleur et ensemble connecteur préfabriqué
CN209281003U (zh) 光纤连接头、光纤适配器及光纤连接器
US11495913B2 (en) Optical fiber connector and optical fiber connector assembly
CN210051929U (zh) 光纤连接器和光纤连接器组件
CN218917718U (zh) 一种小尺寸防水光纤插头
CN208224542U (zh) 光纤适配器及光纤连接组件

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19904560

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19904560

Country of ref document: EP

Kind code of ref document: A1