WO2009116389A1 - 光コネクタ - Google Patents
光コネクタ Download PDFInfo
- Publication number
- WO2009116389A1 WO2009116389A1 PCT/JP2009/054021 JP2009054021W WO2009116389A1 WO 2009116389 A1 WO2009116389 A1 WO 2009116389A1 JP 2009054021 W JP2009054021 W JP 2009054021W WO 2009116389 A1 WO2009116389 A1 WO 2009116389A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- intermediate member
- optical connector
- ferrule
- plastic
- holder member
- 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.)
- Ceased
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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
Definitions
- the present invention relates to an optical connector, and more particularly to an optical connector in which a part of an optical connector housing is made of a metal part.
- optical fibers are connected using an optical connector.
- Each component of the optical connector housing is made by injection molding of plastic.
- Patent Document 1 JP-A-63-239407
- the present invention provides an optical connector that can secure the strength of the intermediate member by making the intermediate member made of metal even if the thickness of the intermediate member is reduced, and can be easily assembled. The purpose is to do.
- the optical connector of the present invention is an optical connector for connecting an optical fiber, A plastic ferrule holding the optical fiber; A plastic holder member holding the ferrule; A plastic plug disposed on the outer surface of the holder member; A metal intermediate member disposed between the outer surface of the holder member and the inner surface of the plug; It is characterized by having.
- the ferrule holds the optical fiber core of a multi-core optical fiber ribbon.
- the intermediate member is formed by bending a metal plate.
- an optical connector that can ensure the strength of the intermediate member and can be easily assembled even if the intermediate member is made thin by making the intermediate member metal.
- FIG. 3 is a perspective view showing a state where a plug of the female optical connector of FIG. 2 is shifted.
- FIG. 3 shows an intermediate member. It is the front view which looked at the intermediate member of Drawing 5 from the D direction. It is the side view which looked at the intermediate member of Drawing 6 from the F direction. It is the top view which looked at the intermediate member of FIG. 7 from the G direction.
- FIG. 1 and 2 are perspective views showing a preferred embodiment of the optical connector of the present invention.
- FIG. 1 shows an example of a male optical connector
- FIG. 2 shows an example of a female optical connector connected to the male optical connector shown in FIG.
- FIG. 3 is a perspective view showing a state where the plug 6 of the male optical connector 1 of FIG. 1 is slightly shifted in the T1 direction to expose the intermediate member 5 and the holder member 61.
- 4 is a perspective view showing a state where the plug 56 of the male optical connector 1 of FIG. 2 is slightly shifted in the T1 direction to expose the intermediate member 5 and the holder member 61.
- FIG. The male optical connector 1 shown in FIG. 1 and the female optical connector 51 shown in FIG. 2 have substantially the same structure.
- the male optical connector 1 includes a housing 2 and a flexible plastic boot 3 led out from the housing 2.
- the boot 3 holds a multi-fiber ribbon fiber 8.
- the housing 2 includes a ferrule 4, a plastic holder member 61 that covers the outer surface of the ferrule 4, an intermediate member 5 disposed on the outer surface of the holder member 61, and the outer surface of the holder member 61 and the intermediate member 5.
- a plastic plug 6 is disposed so as to cover the outer surface and is slidable with respect to the holder member 61 and the intermediate member 5.
- the ferrule 4 shown in FIG. 1 and FIG. 3 is made by plastic injection molding.
- Each connection of a plurality of optical fiber cores 7 of the multi-fiber optical fiber ribbon 8 is connected to the ferrule end surface 27 of the ferrule 4. End faces are arranged in series along the L direction.
- Two guide pins 9 protrude in the S direction from the ferrule end face 27 and are arranged in parallel at positions on both sides of the multi-core optical fiber 7.
- a plastic holder member 61 is disposed on the outer surface of the ferrule 4, and an intermediate member 5 is disposed on the distal end portion of the outer surface of the holder member 61.
- the holder member 61 is held so as to cover the outer surface of the ferrule 4, and the intermediate member 5 is disposed between the outer surface of the holder member 61 and the inner surface of the housing 2.
- the intermediate member 5 is fixed to the outer surface side of the holder member 61 by, for example, elastic force.
- the intermediate member 5 is not a plastic but a metal member.
- the intermediate member 5 is formed by bending a metal plate. Examples of the metal material forming the intermediate member 5 include iron, aluminum, and brass, but are not particularly limited.
- the plug 6 covers the outer surface of the intermediate member 5. Can slide in the direction.
- the plug 6 has a space portion having a substantially rectangular cross section, and a grip portion 26 is formed in the middle portion.
- the female optical connector 51 includes a housing 52 and a flexible plastic boot 53 led out from the housing 52.
- the boot 3 holds a multi-fiber ribbon fiber 8.
- the housing 52 includes a ferrule 54, a plastic holder member 61 covering the outer surface of the ferrule 54, an intermediate member 5 disposed on the outer surface of the holder member 61, and outer surfaces of the holder member 61 and the intermediate member 5. It has a plastic plug 56 which is arranged and slidable relative to the holder member 61 and the intermediate member 5.
- the ferrule 54 shown in FIGS. 2 and 4 is made by plastic injection molding, and the ferrule end surface 77 of the ferrule 54 is connected to the connection end surface of a plurality of optical fiber core wires 7 of the multi-core optical fiber ribbon 8. Are arranged in series along the L direction. On the ferrule end face 77, guide holes 66 are formed along the S direction on both sides of the multi-core optical fiber 7.
- the intermediate member 5 is the same as the intermediate member 5 of the male optical connector 1 described above, and is not a plastic member but a metal member. Examples of the metal material forming the intermediate member 5 include iron, aluminum, and brass, but are not particularly limited.
- the intermediate member 5 can be the same as the intermediate member 5 of the male optical connector 1.
- the intermediate member 5 is fixed to the outer surface side of the holder member 61 by, for example, elastic force.
- the plug 56 covers the intermediate member 5, and the plug 56 is, for example, along the guide rail formed on the holder member 61 in the T direction against the biasing force of a spring (not shown). Can slide.
- the plug 56 has a space portion having a substantially rectangular cross section, and a grip portion 86 is formed in the middle portion.
- FIG. 5 is a perspective view showing the intermediate member 5
- FIG. 6 is a front view of the intermediate member 5 shown in FIG. 7 is a side view of the intermediate member 5 in FIG. 5 as viewed from the F direction
- FIG. 8 is a plan view of the intermediate member 5 in FIG. 5 as viewed from the G direction.
- the intermediate member 5 is formed by punching a metal plate and bending it, and the butted portions 5M and 5M are butted.
- the frame portion 10 and the extension portion 11 are substantially rectangular in cross section.
- the frame portion 10 has side portions 12, 13, 14, 15, 16, and 17. Holes 18, 19, 20, 21, and 22 are formed in the side surfaces 17, 12, and 13. Holes 23 are formed in the side surfaces 13, 14, and holes 24 are formed in the side surfaces 14, 15, 16.
- the frame portion 10 has a plurality of spring portions 26 for fixing with an elastic force as shown in FIG. 1, and the spring portions 26 protrude inside the frame portion 10.
- the holder member 61 passes through the opening 25 formed by the frame portion 10.
- the extension part 11 protrudes in the T direction from the side parts 13 and 16 and is formed in parallel. The user holds the grip portions 26 and 56 with his / her fingers and inserts the guide pins 9 and 9 of the optical connector 1 into the guide holes 66 and 66 of the optical connector 51.
- the multi-fiber optical fibers 7 of the two optical connectors 51 can be reliably connected.
- a plastic ferrule holding an optical fiber a plastic holder member holding the ferrule, a plastic plug disposed on the outer surface of the holder member, and a holder member A metal intermediate member disposed between the outer surface and the inner surface of the holder member;
- the ferrule, the intermediate member, and the plug can be easily assembled. Even when ferrules having different sizes are used, it is only necessary to change the size of the intermediate member without changing the shape of the plug.
- the ferrule holds the optical fiber core of the multi-core optical fiber ribbon.
- the intermediate member is a metal frame member formed by bending a metal plate.
- the intermediate member can be easily formed with high shape accuracy simply by bending the metal.
- connection end face of the multi-fiber optical fiber 7 of the male optical connector 1 and the connection end face of the multi-fiber optical fiber 7 of the female optical connector 51 are optically connected.
- the multi-core optical fiber 7 of the male optical connector 1 is connected to an adapter (not shown), or the multi-fiber optical fiber 7 of the female optical connector 51 is connected to an adapter (not shown). May be.
- the ferrule holds a multi-core optical fiber, but the ferrule may hold a single optical fiber.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
光コネクタのハウジングの各構成要素は、プラスチックの射出成形により作られており、プラスチック製のフェルールと、このフェルールを覆うホルダー部材と、ホルダー部材を覆うプラスチック製の中間部材と、この中間部材の周囲に配置されるプラグを有している。
この種の光コネクタの関連技術は、特許文献1に開示されている。
そこで、本発明は上記課題を解消するために、中間部材を金属製にすることでたとえ中間部材の薄肉化を図っても中間部材の強度を確保でき、容易に組み立てることができる光コネクタを提供することを目的とする。
前記光ファイバを保持しているプラスチック製のフェルールと、
前記フェルールを保持しているプラスチック製のホルダー部材と、
前記ホルダー部材の外面に配置されるプラスチック製のプラグと、
前記ホルダー部材の外面と前記プラグの内面の間に配置される金属製の中間部材と、
を有していることを特徴とする。
本発明の光コネクタでは、好ましくは、前記中間部材は、金属板を折り曲げて形成されていることを特徴とする。
2 ハウジング
3 ブーツ
4 フェルール
5 中間部材
6 プラグ
7 光ファイバ心線
8 多心光ファイバテープ心線
9 ガイドピン
10 枠部分
61 ホルダー部材
図1と図2は、本発明の光コネクタの好ましい実施形態を示す斜視図である。図1は、オス型の光コネクタの例を示しており、図2は、図1に示すオス型の光コネクタに接続されるメス型の光コネクタの例を示している。
図3は、図1のオス型の光コネクタ1のプラグ6をT1方向に少しずらして、中間部材5とホルダー部材61を露出させた状態を示す斜視図である。図4は、図2のオス型の光コネクタ1のプラグ56をT1方向に少しずらして、中間部材5とホルダー部材61を露出させた状態を示す斜視図である。
図1に示すオス型の光コネクタ1と図2に示すメス型の光コネクタ51は、ほぼ同じ構造を有している。
図1に示すように、オス型の光コネクタ1は、ハウジング2と、ハウジング2から導き出されている可撓性を有するプラスチック製のブーツ3を有している。ブーツ3は、多心光ファイバテープ心線8を保持している。このハウジング2は、フェルール4と、このフェルール4の外面を覆うプラスチック製のホルダー部材61と、このホルダー部材61の外面に配置された中間部材5と、このホルダー部材61の外面と中間部材5の外面を覆うようにして配置され、ホルダー部材61と中間部材5に対してスライド可能なプラスチック製のプラグ6を有している。
中間部材5は、プラスチック製ではなく金属部材である。中間部材5は、金属板を折り曲げて形成されている。中間部材5を形成している金属材料としては、例えば鉄、アルミニウム、真鍮等であるが、特に限定されない。
図2に示すように、メス型の光コネクタ51は、ハウジング52と、ハウジング52から導き出されている可撓性を有するプラスチック製のブーツ53を有している。ブーツ3は、多心光ファイバテープ心線8を保持している。このハウジング52は、フェルール54と、このフェルール54の外面を覆うプラスチック製のホルダー部材61と、このホルダー部材61の外面に配置された中間部材5と、このホルダー部材61と中間部材5の外面に配置されてホルダー部材61と中間部材5に対してスライド可能なプラスチック製のプラグ56を有している。
図5は、中間部材5を示す斜視図であり、図6は、図5の中間部材5をD方向から見た正面図である。図7は、図5の中間部材5をF方向から見た側面図であり、図8は、図5の中間部材5をG方向から見た平面図である。
枠部分10は、側面部12,13,14,15,16,17を有している。側面部17,12,13には、穴部18,19,20,21,22が形成されている。側面部13,14には穴部23が形成され、側面部14,15,16には穴部24が形成されている。
使用者が把持部26、56を指で持って、光コネクタ1のガイドピン9,9を、光コネクタ51のガイド穴66,66に対して挿入することで、図1の光コネクタ1と図2の光コネクタ51の多心光ファイバ心線7同士を確実に接続することができる。
これにより、中間部材を金属製にすることで中間部材の薄肉化を図っても中間部材の強度を確保でき、金属製の中間部材は、プラスチック製の中間部材に比べて反りや歪みが少ないので、フェルールと中間部材とプラグは、容易に組み立てることができる。
また、サイズが異なるフェルールを用いる場合であっても、プラグの形状を変えることなく、中間部材のサイズを変えるだけでよい。
また、中間部材は、金属板を折り曲げて形成されている金属の枠部材である。これにより、中間部材は、金属を曲げるだけで簡単に高い形状精度で形成することができる。
例えば、上述した実施形態では、オス型の光コネクタ1の多心の光ファイバ心線7の接続端面とメス型の光コネクタ51の多心の光ファイバ心線7の接続端面とを光学的に接続する例である。
しかし、オス型の光コネクタ1の多心の光ファイバ心線7を図示しないアダプタに接続したり、メス型の光コネクタ51の多心の光ファイバ心線7を図示しないアダプタに接続するようにしても良い。
フェルールは、多心の光ファイバ心線を保持しているが、フェルールは一心の光ファイバ心線を保持するようにしても良い。
Claims (3)
- 光ファイバを接続するための光コネクタであって、
前記光ファイバを保持しているプラスチック製のフェルールと、
前記フェルールを保持しているプラスチック製のホルダー部材と、
前記ホルダー部材の外面に配置されるプラスチック製のプラグと、
前記ホルダー部材の外面と前記プラグの内面の間に配置される金属製の中間部材と、
を有していることを特徴とする光コネクタ。 - 前記フェルールは、多心光ファイバテープ心線の前記光ファイバ心線を保持していることを特徴とする請求項1に記載の光コネクタ。
- 前記中間部材は、金属板を折り曲げて形成されていることを特徴とする請求項1または請求項2に記載の光コネクタ。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/933,266 US8297851B2 (en) | 2008-03-18 | 2009-03-04 | Optical connector |
| JP2010503823A JP5041452B2 (ja) | 2008-03-18 | 2009-03-04 | 光コネクタ |
| CN2009801091452A CN101971067A (zh) | 2008-03-18 | 2009-03-04 | 光连接器 |
| EP09721838.2A EP2256529A4 (en) | 2008-03-18 | 2009-03-04 | OPTICAL CONNECTOR |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008068769 | 2008-03-18 | ||
| JP2008-068769 | 2008-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009116389A1 true WO2009116389A1 (ja) | 2009-09-24 |
Family
ID=41090795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2009/054021 Ceased WO2009116389A1 (ja) | 2008-03-18 | 2009-03-04 | 光コネクタ |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8297851B2 (ja) |
| EP (1) | EP2256529A4 (ja) |
| JP (1) | JP5041452B2 (ja) |
| CN (1) | CN101971067A (ja) |
| WO (1) | WO2009116389A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5041452B2 (ja) * | 2008-03-18 | 2012-10-03 | 古河電気工業株式会社 | 光コネクタ |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239407A (ja) | 1987-03-27 | 1988-10-05 | Nippon Telegr & Teleph Corp <Ntt> | 光コネクタ |
| JPH0694940A (ja) * | 1992-09-14 | 1994-04-08 | Hitachi Cable Ltd | 導波路型光モジュール |
| JP2000056176A (ja) * | 1998-08-03 | 2000-02-25 | Nippon Telegr & Teleph Corp <Ntt> | 光コネクタ |
| JP2007121764A (ja) * | 2005-10-28 | 2007-05-17 | Three M Innovative Properties Co | 光コネクタ |
| JP2007133368A (ja) * | 2005-10-14 | 2007-05-31 | Yazaki Corp | 光コネクタにおけるフェルール先端保護構造 |
| JP2008191318A (ja) * | 2007-02-02 | 2008-08-21 | Three M Innovative Properties Co | 光コネクタ |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60198509A (ja) * | 1984-03-22 | 1985-10-08 | Sumitomo Electric Ind Ltd | 光コネクタフエル−ルとその製造方法 |
| US5390270A (en) * | 1989-11-28 | 1995-02-14 | Kel Corporation | Optical fiber ferrule assemblies |
| 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 |
| US6081647A (en) * | 1998-01-05 | 2000-06-27 | Molex Incorporated | Fiber optic connector receptacle |
| US6079881A (en) * | 1998-04-08 | 2000-06-27 | Molex Incorporated | Fiber optic connector receptacle assembly |
| JP4028354B2 (ja) * | 2002-10-01 | 2007-12-26 | 株式会社フジクラ | シャッター付き光コネクタ |
| US7211739B1 (en) * | 2006-03-27 | 2007-05-01 | Emc Corporation | Electromagnetic interference (EMI) shield for a cable-bulkhead interface |
| JP5041452B2 (ja) * | 2008-03-18 | 2012-10-03 | 古河電気工業株式会社 | 光コネクタ |
| US7841778B2 (en) | 2008-12-19 | 2010-11-30 | The Furukawa Electric Co., Ltd. | Optical connector |
-
2009
- 2009-03-04 JP JP2010503823A patent/JP5041452B2/ja not_active Expired - Fee Related
- 2009-03-04 WO PCT/JP2009/054021 patent/WO2009116389A1/ja not_active Ceased
- 2009-03-04 US US12/933,266 patent/US8297851B2/en active Active
- 2009-03-04 CN CN2009801091452A patent/CN101971067A/zh active Pending
- 2009-03-04 EP EP09721838.2A patent/EP2256529A4/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239407A (ja) | 1987-03-27 | 1988-10-05 | Nippon Telegr & Teleph Corp <Ntt> | 光コネクタ |
| JPH0694940A (ja) * | 1992-09-14 | 1994-04-08 | Hitachi Cable Ltd | 導波路型光モジュール |
| JP2000056176A (ja) * | 1998-08-03 | 2000-02-25 | Nippon Telegr & Teleph Corp <Ntt> | 光コネクタ |
| JP2007133368A (ja) * | 2005-10-14 | 2007-05-31 | Yazaki Corp | 光コネクタにおけるフェルール先端保護構造 |
| JP2007121764A (ja) * | 2005-10-28 | 2007-05-17 | Three M Innovative Properties Co | 光コネクタ |
| JP2008191318A (ja) * | 2007-02-02 | 2008-08-21 | Three M Innovative Properties Co | 光コネクタ |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2256529A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2256529A1 (en) | 2010-12-01 |
| EP2256529A4 (en) | 2013-06-19 |
| JPWO2009116389A1 (ja) | 2011-07-21 |
| JP5041452B2 (ja) | 2012-10-03 |
| CN101971067A (zh) | 2011-02-09 |
| US8297851B2 (en) | 2012-10-30 |
| US20110044586A1 (en) | 2011-02-24 |
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