WO2019008651A1 - Connecteur optique et languette de type traction-poussée - Google Patents

Connecteur optique et languette de type traction-poussée Download PDF

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Publication number
WO2019008651A1
WO2019008651A1 PCT/JP2017/024410 JP2017024410W WO2019008651A1 WO 2019008651 A1 WO2019008651 A1 WO 2019008651A1 JP 2017024410 W JP2017024410 W JP 2017024410W WO 2019008651 A1 WO2019008651 A1 WO 2019008651A1
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WO
WIPO (PCT)
Prior art keywords
push
pull tab
optical connector
optical
connector
Prior art date
Application number
PCT/JP2017/024410
Other languages
English (en)
Japanese (ja)
Inventor
小松　幹也
草原　裕次
文之 千国
達也 石室
Original Assignee
株式会社日新化成
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 株式会社日新化成 filed Critical 株式会社日新化成
Priority to JP2019528218A priority Critical patent/JPWO2019008651A1/ja
Priority to CN201780092696.7A priority patent/CN110799872A/zh
Priority to PCT/JP2017/024410 priority patent/WO2019008651A1/fr
Publication of WO2019008651A1 publication Critical patent/WO2019008651A1/fr

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    • 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

Definitions

  • the present invention relates to an optical connector and a push-pull tab, and in particular, a multi-fiber optical fiber connector (hereinafter referred to as "MPO connector") capable of high density mounting at a narrow pitch and a push-pull tab for attaching and detaching the same. It is about
  • MPO Multi-fiber Push-on
  • FIG. 1 there is an MPO connector for round cables shown in FIG.
  • the multi-core optical fiber 505 exposed on the front side of the MPO connector 500 is aligned in an MT (Mechanically Transferable) ferrule 510, and the MT ferrule 510 is covered with an inner housing 520, and further inner
  • the housing 520 is structured to be covered by an outer housing 530.
  • the round cable 540 connected to the back side of the MPO connector 500 is covered with the MPO boot 550, and the optical fiber in the round cable 540 passes through the inside of the inner housing 520 and the MT ferrule 510 to form a multicore optical fiber 505. It is exposed.
  • the inner housing 520 is exposed from the skirt portion 532 on the round cable 540 side of the outer housing 530, and a spring push 560 is provided between the outer housing 530 and the MPO boot 550.
  • the spring push 560 is used to press the MPO connector 500 in the direction of the arrow F or to hold the MPO boot 550 with a finger to press the MPO connector 500.
  • pinching and pushing the MPO boot 550 may damage the optical fiber.
  • the MPO connector 500 is detached by holding the outer housing 530 with a finger and pulling it in the direction opposite to the arrow F.
  • the MPO connector 500 and the MPO adapter 600 are arranged at a narrower pitch than conventional to perform high-density mounting, the distance between the adjacent MPO connector 500 is narrow and the outer The finger can not reach the housing 530 or the spring push 560. For this reason, there is a possibility that it may become difficult to attach or detach (PUSH & PULL) the MPO connector 500 with respect to the MPO adapter 600.
  • the present invention is attached to the above points, and an object thereof is an optical connector and push-pull tab capable of easily attaching and detaching an optical connector to an optical adapter even with a narrow pitch of high density mounting. To provide. Another object is to provide a push-pull tab that can be easily attached to and removed from the optical connector.
  • the optical connector of the present invention is an optical connector in which an optical fiber is covered by an inner housing and an outer housing, a skirt is provided on the outer housing, and a spring push is provided on the round cable side of the inner housing.
  • a step is provided between the skirt portion and the outer housing as the first engagement portion so that the skirt portion side becomes higher, and the second engagement portion is formed as the second engagement portion.
  • the round cable side of the spring push is characterized in that a first curved surface forming a part of a spherical surface is provided.
  • the push-pull tab according to the present invention is a push-pull tab for attaching and detaching the optical connector to and from the optical adapter, and the first engaging portion when the optical connector is detached from the optical adapter.
  • it has a cylindrical shape that covers the outside of the optical connector, and holds the first grip portion that holds the outer housing side of the optical connector, and the spring push side of the optical connector.
  • a detachable bar extending from the second grip toward the round cable, and the first and second grips may pass the round cable.
  • the first gripping part comprises an arm for gripping the outer housing
  • the second gripping part comprises an arm for gripping the spring push side
  • the push-pull tab has a tubular shape covering the outside of the optical connector, and is a push-pull tab for attaching and detaching the optical connector to the optical adapter, wherein the outer housing of the optical connector First gripping portion gripping the side, a second gripping portion gripping the spring push side of the optical connector, a detachable bar extended from the second gripping portion toward the round cable, the skirt A skirt engaging means for engaging with a portion, the first and second grips comprising an opening through which the round cable can be passed, the skirt engaging means comprising When disengaging the optical connector from the optical adapter, the first gripping portion engages with the step of the skirt portion, and the first gripping portion includes an arm for gripping the outer housing, and the second gripping portion Includes an arm for gripping the spring push side, when mounting the optical connector to said optical adapter, characterized in that a second curved surface abutting against the first curved surface of the spring push.
  • a C surface which is inclined toward the inside is formed on the tip side of the optical connector of the first grip portion.
  • the skirt engagement means is an engagement window in which the skirt portion is exposed, and when the optical connector is detached from the optical adapter, the inside of the engagement window engages with the step of the skirt portion.
  • the first grip portion is characterized by including a claw that engages with the step of the skirt portion when the optical connector is detached from the optical adapter.
  • the first curved surface on the round cable side of the spring push is a convex curved surface forming a part of a spherical surface
  • the second curved surface of the second grip portion is the first curved surface. It is a concave surface forming a part of a spherical surface having the same diameter as the curved surface, and the first curved surface abuts on the second curved surface when the optical connector is mounted on the optical adapter.
  • the push-pull tab is formed of an elastic material. Still another aspect is characterized in that a reinforcing portion is provided between the attaching / detaching bar and the holding portion.
  • the third engaging portion of the push-pull tab is engaged with the first engaging portion provided on the skirt portion of the optical connector
  • the fourth engaging portion of the push pull tab is engaged with the second engaging portion provided on the spring push of the optical connector, so high density can be achieved. Even with the narrow pitch of mounting, the optical connector can be easily attached to and detached from the optical adapter.
  • a C-face is provided at the tip of the push-pull tab, or it is made of an elastic material so that the arms of the grip portion are opened and closed, so that the push-pull tab can be easily applied to the optical connector. Can be attached and removed.
  • FIG. 5 is a perspective view of the front side of the embodiment of the MPO connector of the present invention. It is the perspective view which looked at the back side of the MPO connector of the said FIG.
  • FIG. 5 is a perspective view of an embodiment of the push pull tab of the present invention.
  • FIG. 4 is a view showing the push pull tab of FIG. 3; It is a perspective view which shows the front side of the state which attached the said push pull tab to the said MPO connector. It is a perspective view which shows the back side of the state which attached the said push pull tab to the said MPO connector. It is a perspective view which shows the state in which the said MPO connector was arranged in large numbers by narrow pitch. It is a perspective view which shows the state which rotated the said push pull tab. It is a perspective view which shows an example of the conventional MPO connector.
  • FIG. 1 is a view of the MPO connector 100 of the present embodiment as viewed from the front side, and FIG.
  • the multicore optical fiber 105 exposed on the front side of the MPO connector 100 is aligned in the MT ferrule 110, the MT ferrule 110 is covered with the inner housing 120, and the inner housing 120 is It has a structure covered by an outer housing 130.
  • the round cable 140 connected to the back side of the MPO connector 100 is covered with the MPO boot 150, and the optical fiber in the round cable 140 passes through the inside of the inner housing 120 and the MT ferrule 110 to form a multicore optical fiber 105. It is exposed.
  • the inner housing 120 is exposed from the skirt portion 132 on the round cable 140 side of the outer housing 130, and a spring push 160 is provided between the outer housing 130 and the MPO boot 150.
  • guide pins are provided at both ends on the male side, but no guide pin is provided because the illustrated example is the female side.
  • a convex guide 122 is provided on the surface side of the inner housing 120, and by fitting the concavities and convexities with the concave groove (not shown) on the MPO adapter side, mounting on the MPO adapter without making a mistake on the front and back. It is possible to The outer housing 130 is slidable relative to the inner housing 120, and is urged in the front direction by spring means (not shown).
  • the skirt portion 132 of the outer housing 130 in the present embodiment is formed to have a step 134 one step higher on the upper and lower surfaces. Further, the side surface of the outer housing 130 is a curved surface, and a slip stopper 136 is formed by the unevenness. On the other hand, on the MPO boot 150 side of the spring push 160, a convex curved surface 162 which constitutes a part of a spherical surface is formed as a push surface. Furthermore, the MPO boot 150 is reduced in diameter toward the round cable 140 from the spring push 160 side, and the cutout portion 152 is formed so that it can be flexibly bent.
  • FIG. 3A is a view of the push-pull tab 200 as viewed from the front side
  • FIG. 3B is a view of the push-pull tab 200 as viewed from the back side
  • 4A to 4C are views as viewed from the direction of arrows F4A to F4C in FIG. 3
  • FIGS. 4D to 4E are views as viewed from the directions of arrows F4D to F4E in FIG. .
  • the push-pull tab 200 has a cylindrical shape that covers the MPO boot 150 from the outer housing 130 of the MPO connector 100, and a substantially C-shaped opening surface 210 is formed on the front side. ing. At the end portion forming the opening surface 210, in order to facilitate the insertion of the MPO connector 100, mounting C surfaces (taper surfaces) 210a to 210e are formed so as to be inclined inward. On the flat side of the push-pull tab 200, an engagement window 220 is formed in which the skirt portion 132 of the MPO connector 100 described above is fitted and the inside thereof engages with the step 134 of the skirt portion 132.
  • an attachment / detachment bar 230 is formed extending from its corner, and between the attachment / detachment bar 230 and the main body of the push-pull tab 200, a fan-like to The triangular reinforcing portions 232 and 234 are appropriately provided, and a slip stopper 236 is formed on the end of the detachable bar 230 by the unevenness.
  • the back side of the push-pull tab 200 is cut in the longitudinal direction, and by forming the notches 240 and 242 on the side, the front to tip gripping portion 250 and the back to rear end are obtained.
  • the side grip portions 260 are respectively formed.
  • the grip 250 includes a pair of arms 254 and 256, and the grip 260 includes a pair of arms 264 and 266.
  • the grip portion 250 on the front end side grips the outer housing 130 of the MPO connector 100 described above, the back surface side is an opening 252, and the front surface side is open as the opening surface 210 described above.
  • the tips 254 b and 256 b of the toes 254 a and 256 a of the arms 254 and 256 of the gripping portion 250 are engaged with the step 134 of the skirt portion 132 of the outer housing 130.
  • the opening surface side of the toes 254a and 256a has a V-shaped open shape, and the mounting C surfaces 210d and 210e described above are formed in this portion.
  • the grip portion 260 has an opening 262 on the back surface side, and grips the joint portion of the spring push 160 of the MPO connector 100 and the MPO boot 150 with the arms 264 and 266.
  • the convex curved surface of the spring push 160 described above A concave surface 268 abutting on 162 is formed inside. In the example shown.
  • the radius of the concave surface 268 is SR (see FIGS. 4A to 4B).
  • the push-pull tab 200 having the above structure is entirely formed of a flexible resin so that the arms 254 and 256 of the grip 250 and the arms 264 and 266 of the grip 260 open and close. It has become.
  • FIG. 5 shows the surface of the MPO connector 100 with the push-pull tab 200 attached
  • FIG. 6 shows the opposite side
  • FIG. 7 shows a state in which a large number of MPO connectors 100 are arranged at a narrow pitch.
  • the opening surface 210 at the tip of the push-pull tab 200 comes into contact with the skirt portion 132 of the outer housing 130 of the MPO connector 100.
  • mounting C surfaces 210a to 210e are respectively formed on the opening surface 210, and the front sides of the toes 254a and 256a of the grip portion 250 are in a V-shape.
  • the arms 254, 256 of the grip 250 open and ride over the skirt 132.
  • the skirt portion 132 is fitted into the opening 220.
  • the concave surface 268 abuts on the convex surface 162 of the spring push 160 of the MPO connector 100.
  • the gripping portion 250 grips the outer housing 130, and the gripping portion 260 grips the joint portion of the spring push 160 and the MPO boot 150, and the attachment of the push pull tab 200 to the MPO connector 100 is completed. (See the solid line in FIG. 5).
  • the operator picks the attachment / detachment bar 230 of the push / pull tab 200 with a finger, and the convex guide 122 of the inner housing 120 of the MPO connector 100 is recessed in the MPO adapter 600.
  • the MPO connector 100 is pushed into the MPO adapter 600 in such a manner that the grooves and the projections are aligned (see FIG. 7).
  • the spring push 160 of the MPO connector 100 is pushed by the grip portion 260 of the push-pull tab 200, and the MPO connector 100 is attached to the MPO adapter 600.
  • the operator holds the push-pull tab 200's detachable bar 230 with a finger and pulls the push-pull tab 200 in the direction of the round cable 140.
  • the edge of the engaging window 220 of 200 strikes the step 134 of the MPO connector 100 skirt section 132 to push back the skirt section 132 against the spring force, and by pulling the detachable bar 230 further, the MPO connector 100 is MPO adapter 600 It can be removed from.
  • the operator can easily attach / detach the MPO connector 100 to / from the MPO adapter 600 by pinching and pushing / pulling the anti-slip 236 of the push / pull tab 200 attached to the MPO connector 100.
  • the MPO connector 100 can be easily attached and detached with one touch.
  • the concave curved surface 268 of the grip portion 260 is in contact with the convex curved surface 162 of the spring push 160 of the MPO connector 100, and both of the curved surfaces 162 and 268 constitute a part of a spherical surface.
  • the curved surfaces 162, 268 act like spherical joints, for example. For this reason, even if there is a slight clearance between the shape and dimensions of the MPO connector 100 and the push-pull tab 200, both the curved surfaces 162 and 268 stably contact, and the push-pull tab 200 contacts the MPO connector 100. And the attachment of the MPO connector 100 to the MPO adapter 600 can be performed well. For the same reason, even if the axial center (center in the longitudinal direction) of the detachable bar 230 is offset from the axial center (center in the longitudinal direction) of the MPO connector 100, the MPO connector 100 can be easily attached and detached.
  • C-surfaces 210a to 210e are provided on the inside of the opening surface 210 at the tip of the push-pull tab 200 and on the tip V-shaped portion of the toe 254a, 256a of the grip 250.
  • the push pull tab 200 can be attached to the MPO connector 100.
  • the push pull tab 200 By forming the push pull tab 200 using a resilient molding material such as resin, the push pull tab 200 can be easily attached and removed from the MPO connector 100.
  • the openings 252 and 262 are provided in the grips 250 and 260 of the push and pull tab 200, and the arms 254 and 256 and the arms 264 and 266 are opened, so the rigidity of the push and pull tab 200 is relaxed. Also in this case, the push-pull tab 200 can be easily attached to and detached from the MPO connector 100.
  • the convex curved surface 162 which is the push surface on the spring push 160 side of the MPO connector 100, and the concave curved surface 268 of the grip portion 260 on the push pull tab 200 side are curved surfaces that become parts of spherical surfaces of the same radius.
  • the MPO connector 100 can be stably mounted on the MPO adapter 600 even with the size and shape of the clearance. Even if there is an offset between the MPO connector 100 and the center of the push pull tab 200, equally stable mounting is possible.
  • the skirt portion 132 of the outer housing 130 is protruded to form a step 134 higher in height, and an engagement window 220 in which the skirt portion 132 is fitted is formed on the push-pull tab 200 side.
  • the skirt portion 132 can be slid against the spring force to allow the MPO connector 100 to be easily detached from the MPO adapter 600.
  • the tips 254b and 256b of the toes 254a and 256a provided on the arms 254 and 256 of the gripping portion 250 engage with the step 134 of the skirt portion 132 of the outer housing 130 Do. Also by this, it is possible to slide the skirt portion 132 against the spring force and easily release the MPO connector 100 from the MPO adapter 600.
  • the MPO connector 100 can be easily attached to and detached from the MPO adapter 600 by using the push-pull tab 200 for the MPO connector 100 arranged at a narrow pitch for high density mounting, and the work efficiency Can be improved.
  • the structure is a simple one-piece type, and the push / pull tab 200 can be attached / removed to / from the MPO connector 100 with one touch.
  • the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the scope of the present invention. For example, the following are also included. (1) The shapes and dimensions shown in the above embodiments are merely examples, and may be changed as appropriate. Similarly for the material, various elastic materials may be used. (2) Although the MPO connector of the type without guide pins has been described in the above embodiment, the present invention is similarly applicable to those with guide pins. Also, the number of optical fibers is not particularly limited.
  • the inside of the engagement window 220 of the push-pull tab 200 is engaged with the step 134 of the skirt portion 132.
  • various engagement means may be used.
  • a concavo-convex shape (first engagement portion) is formed on the skirt portion 132, and a concavo-convex shape (third engagement portion) engaged with the concavities and convexities is formed on the push pull tab 200 side.
  • Various engagement means may be applied, such as provision.
  • the spring push 160 side is the convex curved surface 162 (second engaging portion)
  • the gripping portion 260 side is the concave curved surface 268 (fourth engaging portion). It may be reversed. Moreover, it does not prevent setting it as various engagement means, such as making it uneven
  • the third engaging portion of the push-pull tab is engaged with the first engaging portion provided on the skirt portion of the optical connector
  • the fourth engaging portion of the push pull tab is engaged with the second engaging portion provided on the spring push of the optical connector, so high density can be achieved.
  • the optical connector can be easily attached to and detached from the optical adapter.
  • a C-face is provided at the tip of the push-pull tab, or it is made of an elastic material so that the arms of the grip portion are opened and closed, so that the push-pull tab can be easily applied to the optical connector. It is suitable for the attachment and detachment of an MPO connector with respect to the MPO adapter arranged in narrow pitch, since attachment or removal can be performed.
  • MPO connector 105 multi-core optical fiber 110: MT ferrule 120: inner housing 122: convex guide 130: outer housing 132: outer housing 132: skirt portion 134: step 140: round cable 150: MPO boot 152: cut portion 160: spring push 162 Curved surface 162, 268: Curved surface 200: Push pull tab 210: Opening surface 210a, 210b, 210c, 210d, 210e: C surface 220: Engaging window 230: Detachable bar 232, 234: Reinforcement portion 250, 260 : Grasping part 252, 262: Opening 254, 256: Arm 254a, 256a: Toe 260: Gripping part 264, 266: Arm 268: Concave surface 500: Connector 505: Multifiber optical fiber 510: MT ferrule 520: Inner housing 530: Outer Ha Managing 532: skirt portion 540: Round Cable 550: boots 560: Spring push 600: MPO adapter

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

Abstract

Le problème décrit par la présente invention est de fournir un connecteur optique et une languette de type traction-poussée qui permettent d'attacher et de détacher facilement le connecteur optique à un adaptateur optique même pour un pas étroit dans un montage à haute densité. La solution selon l'invention consiste à, au moment d'attacher une languette de type traction-poussée (200) à un connecteur MPO (100), un opérateur pince manuellement une butée coulissante (236) sur une barre de détachement (230) sur la languette de type traction-poussée (200), permettant à un câble rond (140) de passer dans des ouvertures (252, 262) de telle sorte que le câble rond (140) s'insère dans des rainures (250, 260). Ensuite, l'opérateur pousse la barre de détachement (230) vers l'avant. Au moment de la fixation du connecteur MPO (100) à un adaptateur MPO (600), l'opérateur pince manuellement la barre de détachement (230) sur la languette de type traction-poussée (200) et pousse la barre de détachement (230) dans l'adaptateur MPO (600). À l'inverse, au moment de la séparation du connecteur MPO (100) de l'adaptateur MPO (600), l'opérateur pince manuellement la butée coulissante (236) sur la barre de détachement (230) pour tirer la butée coulissante (236) en direction du câble rond (140).
PCT/JP2017/024410 2017-07-03 2017-07-03 Connecteur optique et languette de type traction-poussée WO2019008651A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019528218A JPWO2019008651A1 (ja) 2017-07-03 2017-07-03 光コネクタ及びプッシュ・プル・タブ
CN201780092696.7A CN110799872A (zh) 2017-07-03 2017-07-03 光连接器和推拉件
PCT/JP2017/024410 WO2019008651A1 (fr) 2017-07-03 2017-07-03 Connecteur optique et languette de type traction-poussée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/024410 WO2019008651A1 (fr) 2017-07-03 2017-07-03 Connecteur optique et languette de type traction-poussée

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WO2019008651A1 true WO2019008651A1 (fr) 2019-01-10

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PCT/JP2017/024410 WO2019008651A1 (fr) 2017-07-03 2017-07-03 Connecteur optique et languette de type traction-poussée

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CN (1) CN110799872A (fr)
WO (1) WO2019008651A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111694105A (zh) * 2020-07-20 2020-09-22 苏州海光芯创光电科技有限公司 一种具有遮罩式防解锁结构的mpo连接器及其组装方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112346098A (zh) * 2020-10-27 2021-02-09 惠州Tcl移动通信有限公司 定位器及其佩戴方法

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US20150078717A1 (en) * 2013-09-18 2015-03-19 Yu-Ching Lin Optical fiber connector with handling member
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JPH08262270A (ja) * 1995-03-24 1996-10-11 Hirose Electric Co Ltd 光ファイバコネクタ及びそれに用いる工具
JP2004020879A (ja) * 2002-06-14 2004-01-22 Fujikura Ltd 光コネクタ抜去具
JP2005062393A (ja) * 2003-08-11 2005-03-10 Fujikura Ltd 光コネクタ挿抜具
US20090226140A1 (en) * 2008-03-06 2009-09-10 Molex Incorporated Fiber optic connector removal clips
US20110019962A1 (en) * 2008-11-07 2011-01-27 Childers Darrell R Removable Sleeve for Fiber Optic Connectors for High Density Applications
US20120093467A1 (en) * 2010-10-14 2012-04-19 International Business Machines Corporation Actuation Feature For Fiber Optic Connectors In Dense Arrays
US20130183004A1 (en) * 2011-07-08 2013-07-18 Mike Elbert Hughes Loopback Housing for a Fiber Optic Connector
US20140331464A1 (en) * 2013-05-07 2014-11-13 Amphenol Fiber Optics Technology (Shenzhen) Coupling housing connector pull tab
US20150030289A1 (en) * 2013-07-23 2015-01-29 Amphenol Fiber Optic Technology (Shenzhen) Clip device for facilitating insertion and removal of a push-pull fiber optic connector
US20150078717A1 (en) * 2013-09-18 2015-03-19 Yu-Ching Lin Optical fiber connector with handling member
JP2017090798A (ja) * 2015-11-16 2017-05-25 株式会社フジクラ 光コネクタ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111694105A (zh) * 2020-07-20 2020-09-22 苏州海光芯创光电科技有限公司 一种具有遮罩式防解锁结构的mpo连接器及其组装方法

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JPWO2019008651A1 (ja) 2020-04-30

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