JPH0381123B2 - - Google Patents
Info
- Publication number
- JPH0381123B2 JPH0381123B2 JP12693083A JP12693083A JPH0381123B2 JP H0381123 B2 JPH0381123 B2 JP H0381123B2 JP 12693083 A JP12693083 A JP 12693083A JP 12693083 A JP12693083 A JP 12693083A JP H0381123 B2 JPH0381123 B2 JP H0381123B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- center
- optical fiber
- pressure
- optical connector
- 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.)
- Expired - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 claims description 43
- 230000003287 optical effect Effects 0.000 claims description 30
- 239000000853 adhesive Substances 0.000 claims description 23
- 230000001070 adhesive effect Effects 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000035515 penetration Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
- G02B6/4428—Penetrator systems in pressure-resistant devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—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
- G02B6/3816—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres for use under water, high pressure connectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、耐圧容器の貫通部等に用いられる
水密光コネクタに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a watertight optical connector used for a penetration part of a pressure-resistant container, etc.
近年、深海の開発技術が盛んに推進されている
が、その中で深海中の電子機器と海上の母船間の
計測制御信号の送受信用線路として、軽量、細径
であり、かつ大量のデータを長距離にわたり無中
継送信可能な光フアイバを用いることが考えられ
ている。
In recent years, deep-sea development technology has been actively promoted, and among them, a lightweight, small-diameter line that can transmit and receive measurement and control signals between electronic equipment in the deep sea and a mother ship at sea, and that can handle large amounts of data. Consideration has been given to using optical fibers that can transmit signals over long distances without repeating them.
光フアイバを用いる場合の一つの問題は、深海
中の電送機器（光電変換器）と光フアイバとの接
続構造である。すなわち、光電変換器は耐圧容器
内に収納されるが、その内部は大気圧であるか
ら、耐圧容器の内部と外部の間には、例えば6000
ｍの深海において約600気圧の圧力差を生じる。
そのため光フアイバ貫通部はこの高水圧に耐える
ものでなければならない。 One problem when using optical fibers is the connection structure between deep-sea power transmission equipment (photoelectric converters) and optical fibers. In other words, the photoelectric converter is housed in a pressure-resistant container, but since the inside is at atmospheric pressure, there is a distance of, for example, 6,000 yen between the inside and outside of the pressure-resistant container.
This creates a pressure difference of approximately 600 atmospheres in the deep ocean.
Therefore, the optical fiber penetration part must be able to withstand this high water pressure.
しかるに、従来の水密型光フアイバ貫通部の構
造は、第１図に示すように、貫通金具１に光フア
イバ２を通し、そのすきまに硬化型樹脂接着剤３
を流し込みこれを固化するようにしたものである
から、光フアイバ２は樹脂接着剤３の接着力のみ
で保持され、光フアイバ２を締付ける方向の力が
作用しない。 However, the structure of the conventional watertight optical fiber penetration part is as shown in FIG.
Since it is made by pouring and solidifying the optical fiber 2, the optical fiber 2 is held only by the adhesive force of the resin adhesive 3, and no force in the direction of tightening the optical fiber 2 is applied.
従来は上記のごときものであつたから、光フア
イバ２の界面において樹脂接着剤３の剥離が生じ
易く、水密性低下の原因になるとともに、光フア
イバ２が貫通部の端末又はその内部で屈曲した
り、折れ曲がつたりすることがあり、光伝送損失
が増大する原因となつていた。
Conventionally, as described above, the resin adhesive 3 is likely to peel off at the interface of the optical fiber 2, causing a decrease in watertightness, and the optical fiber 2 may be bent at the end of the penetration part or inside it. However, the bends may become loose, causing an increase in optical transmission loss.
また、従来の場合は、耐圧容器内部において光
フアイバと光電変換素子との接続が行なわれ、水
密貫通部は上記のとおり構成されるので、耐圧容
器の外部から光フアイバの着脱を行なうことが容
易にできない問題もあつた。 In addition, in the conventional case, the connection between the optical fiber and the photoelectric conversion element is made inside the pressure container, and the watertight penetration part is configured as described above, so it is easy to attach and detach the optical fiber from the outside of the pressure container. There were some problems that could not be solved.
そこで、この発明は、光フアイバの耐圧容器水
密貫通部における上記の問題点を解決し、高水圧
下における水密性に優れ、かつ光伝送損失の少な
い水密光コネクタを提供することを目的とするも
のである。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems in the watertight penetration part of a pressure vessel of an optical fiber, and to provide a watertight optical connector that has excellent watertightness under high water pressure and has low optical transmission loss. It is.
上記の目的を達成するために、この発明は中心
に光フアイバ４の外径にほぼ等しい内径の貫通孔
５を有し、かつ後端に大径部７を有する中心金具
６、該中心金具６の上記貫通孔５の先端に取付け
られた光コネクタプラグ１６、上記中心金具６の
大径部７に嵌合され、かつ上記貫通孔５と同芯で
それより大径の中心孔１１を有する外筒体９、及
び該外筒体９の中心孔１１の後端に挿入され、か
つその後端面が外部に露出した受圧筒１４とを有
し、上記受圧筒１４、中心孔１１及び貫通孔５に
所要の間〓をおいて挿通した光フアイバ４の先端
を上記光コネクタプラグ１６に接続し、上記の中
心孔１１及び貫通孔５内の光フアイバ４のまわり
の間〓に高水圧下で変形する硬化型樹脂接着剤１
３を充填した構成としたものである。
In order to achieve the above object, the present invention provides a center metal fitting 6 having a through hole 5 at the center with an inner diameter approximately equal to the outer diameter of the optical fiber 4 and a large diameter portion 7 at the rear end; an optical connector plug 16 attached to the tip of the through hole 5; It has a cylindrical body 9 and a pressure receiving cylinder 14 which is inserted into the rear end of the center hole 11 of the outer cylinder 9 and whose rear end surface is exposed to the outside. The tip of the optical fiber 4 inserted through the optical fiber 4 is connected to the optical connector plug 16 after leaving a required distance, and is deformed under high water pressure between the center hole 11 and the area around the optical fiber 4 in the through hole 5. Curing resin adhesive 1
3.
上記構成の水密光コネクタは雄水密光コネクタ
として用いられ、耐圧容器の壁２３を貫通して設
けた雌光コネクタに対し、外筒体９のまわりに嵌
めた袋ナツト１９等の結合手段により着脱自在に
結合される。
The watertight optical connector configured as described above is used as a male watertight optical connector, and is attached to and detached from the female optical connector provided by penetrating the wall 23 of the pressure container by a connecting means such as a cap nut 19 fitted around the outer cylinder body 9. Can be combined freely.
上記の硬化型樹脂接着剤１３は、深海中におけ
る高水圧により若干変形し得る程度の柔軟性をも
つように硬化するものである。 The above-mentioned curable resin adhesive 13 is cured so as to have flexibility to the extent that it can be slightly deformed by high water pressure in the deep sea.
したがつて、高水圧が受圧筒１４の後端面に作
用すると、中心孔１１に充填された硬化型樹脂接
着剤１３が変形し、中心孔１１に存在する光フア
イバ４に軸方向だけでなく、半径方向にも圧力を
伝える。これにより、中心孔１１の部分において
光フアイバ４に締付力が作用し、光フアイバ４と
樹脂接着剤１３との剥離を防止する。 Therefore, when high water pressure acts on the rear end surface of the pressure receiving cylinder 14, the curable resin adhesive 13 filled in the center hole 11 is deformed, and the optical fiber 4 existing in the center hole 11 is affected not only in the axial direction but also in the axial direction. It also transmits pressure in the radial direction. As a result, a tightening force is applied to the optical fiber 4 at the center hole 11, and separation of the optical fiber 4 and the resin adhesive 13 is prevented.
〔実施例〕
この発明の実施例に係る水密光コネクタは、第
２図及び第３図に示すように中心金具６及び外筒
体９を有する。[Embodiment] A watertight optical connector according to an embodiment of the present invention has a central metal fitting 6 and an outer cylindrical body 9, as shown in FIGS. 2 and 3.
中心金具６の中心には光フアイバ４の外径にほ
ぼ等しい内径の貫通孔５が設けられる。また、中
心金具６の後端部には大径部７が設けられる。上
記大径部７の後端面中央にガイド用突起８が形成
され、前記の貫通孔５はそのガイド用突起８の中
心に延長して形成される。また、中心金具６の先
端に光コネクタプラグ１６が取付けられる。 A through hole 5 having an inner diameter approximately equal to the outer diameter of the optical fiber 4 is provided at the center of the center fitting 6 . Further, a large diameter portion 7 is provided at the rear end portion of the center metal fitting 6 . A guide protrusion 8 is formed at the center of the rear end surface of the large diameter portion 7, and the through hole 5 is formed extending to the center of the guide protrusion 8. Further, an optical connector plug 16 is attached to the tip of the center metal fitting 6.
外筒体９はその前端面に前記の中心金具６の大
径部７とねじ嵌合する嵌合凹所１０が設けられ、
その嵌合凹所１０の底面中央から後端面にわた
り、前記のガイド用突起８より大径の中心孔１１
が設けられる。上記の嵌合凹所１０にねじ嵌合さ
れた大径部７の後端面は、嵌合凹所１０の底面に
密着し、またガイド用突起８が中心孔１１の内部
に挿入される。 The outer cylindrical body 9 is provided with a fitting recess 10 on its front end surface, into which the large diameter portion 7 of the central fitting 6 is screwed.
A central hole 11 extending from the center of the bottom surface to the rear end surface of the fitting recess 10 has a larger diameter than the guide protrusion 8.
is provided. The rear end surface of the large diameter portion 7 screwed into the fitting recess 10 is in close contact with the bottom surface of the fitting recess 10, and the guide protrusion 8 is inserted into the center hole 11.
上記の中心孔１１の内周面には、ねじ溝等の凹
凸条１２が形成され、その内部に充填された硬化
型樹脂接着剤１３の接着力を向上させる。上記の
凹凸条１２は、中心孔１１の後端部分においては
存在せず、その部分に受圧筒１４が挿入される。 An uneven strip 12 such as a thread groove is formed on the inner circumferential surface of the center hole 11 to improve the adhesive strength of the curable resin adhesive 13 filled inside. The above-mentioned uneven strip 12 does not exist at the rear end portion of the center hole 11, and the pressure receiving cylinder 14 is inserted into that portion.
受圧筒１４は後半部に小径部１７が形成され、
その小径部１７を外筒体９の外部に突出させ、光
フアイバ４を保護している。また受圧筒１４の中
心には、光フアイバ４の挿通孔１５が設けられ
る。 The pressure receiving cylinder 14 has a small diameter portion 17 formed in the rear half thereof.
The small diameter portion 17 is made to protrude to the outside of the outer cylindrical body 9 to protect the optical fiber 4. Further, at the center of the pressure receiving cylinder 14, an insertion hole 15 for the optical fiber 4 is provided.
なお、上記の中心金具６、外筒体９及び受圧筒
１４は、耐食製の高い高強度金属、例えばステン
レススチール（SUS 316）を用いる。 Note that the central metal fitting 6, the outer cylinder body 9, and the pressure receiving cylinder 14 are made of corrosion-resistant, high-strength metal, such as stainless steel (SUS 316).
上記の受圧筒１４の挿通孔１５、外筒体９の中
心孔１１及び中心金具６の貫通孔５を通つて光フ
アイバ４が挿通され、その光フアイバ４の先端は
光コネクタプラグ１６に接続される。 The optical fiber 4 is inserted through the insertion hole 15 of the pressure receiving cylinder 14, the center hole 11 of the outer cylinder 9, and the through hole 5 of the central metal fitting 6, and the tip of the optical fiber 4 is connected to the optical connector plug 16. Ru.
また、上記外筒体９の中心孔１１の内部及び中
心金具６の貫通孔５の内部に硬化型樹脂接着剤１
３が充填される。この樹脂接着剤１３は中心金具
６内の光フアイバ４のまわりの狭窄部８′にも充
填される。 Further, a curable resin adhesive 1 is applied inside the center hole 11 of the outer cylinder 9 and inside the through hole 5 of the center metal fitting 6.
3 is filled. This resin adhesive 13 is also filled in the narrowed part 8' around the optical fiber 4 in the central metal fitting 6.
上記の中心孔１１内に充填された樹脂接着剤１
３は、深海中で高水圧が受圧筒１４の後端面に作
用した際、その受圧筒１４を介して加えられる圧
力により若干変形し得る程度に硬化するものであ
る。この樹脂接着剤１３としては常温硬化型のも
のを用いるのが望ましい。 Resin adhesive 1 filled in the center hole 11
No. 3 is hardened to such an extent that it can be slightly deformed by the pressure applied through the pressure cylinder 14 when high water pressure acts on the rear end surface of the pressure cylinder 14 in the deep sea. As this resin adhesive 13, it is desirable to use one that hardens at room temperature.
外筒体９の後端面から突出した受圧筒１４の小
径部１７と光フアイバ４との間に耐水性の熱収縮
チユーブ１８を被覆し、これにより光フアイバ４
と小径部１７とを固定している。 A water-resistant heat-shrinkable tube 18 is coated between the optical fiber 4 and the small diameter portion 17 of the pressure-receiving cylinder 14 protruding from the rear end surface of the outer cylinder 9, so that the optical fiber 4
and the small diameter portion 17 are fixed.
また、外筒体９に設けた段部に袋ナツト１９を
係合し、その袋ナツト１９の抜け落ち防止用のナ
ツト２０を外筒体９の端部にねじ結合している。
また、外筒体９の外径面及び中心金具６の大径部
７の前端面にシール部材２１，２２を取付けてい
る。 Further, a cap nut 19 is engaged with a stepped portion provided on the outer cylinder 9, and a nut 20 for preventing the cap nut 19 from falling off is screwed to the end of the outer cylinder 9.
Further, seal members 21 and 22 are attached to the outer diameter surface of the outer cylinder body 9 and the front end surface of the large diameter portion 7 of the center fitting 6.
以上述べた光コネクタの組立は、次の順序によ
るとよい。 The optical connector described above may be assembled in the following order.
(1) 光フアイバ４に中心金具６、外筒体９、受圧
筒１４、熱収縮チユーブ１８、袋ナツト１９及
びナツト２０等を通す。(1) Pass the center metal fitting 6, outer cylinder 9, pressure receiving cylinder 14, heat shrink tube 18, cap nut 19, nut 20, etc. through the optical fiber 4.
(2) 中心金具６の先端（図の右端）から貫通孔５
の後端まで硬化型樹脂接着剤１３を注入し、硬
化させる。(2) From the tip of the center fitting 6 (right end in the figure) to the through hole 5
The curable resin adhesive 13 is injected up to the rear end and cured.
(3) 外筒体９を中心金具６の大径部７にねじ嵌合
する。(3) Screw-fit the outer cylindrical body 9 to the large diameter portion 7 of the center fitting 6.
(4) 外筒体９の中心孔１１に硬化型樹脂接着剤１
３を注入する。(4) Put the curable resin adhesive 1 into the center hole 11 of the outer cylindrical body 9.
Inject 3.
(5) 受圧筒１４を中心孔１１の後端に挿入する。
受圧筒１４の挿入により、その挿通孔１５にも
硬化型樹脂接着剤１３が充填され、硬化する。(5) Insert the pressure receiving cylinder 14 into the rear end of the center hole 11.
By inserting the pressure receiving cylinder 14, the insertion hole 15 thereof is also filled with the curable resin adhesive 13 and hardened.
(6) 受圧筒１４の小径部１７と光フアイバ４との
間に熱収縮チユーブ１８を被せ、熱収縮させ
る。(6) A heat shrink tube 18 is placed between the small diameter portion 17 of the pressure receiving cylinder 14 and the optical fiber 4, and the heat shrink tube 18 is heat-shrinked.
(7) 中心金具６の先端に光フアイバ４の先端を挿
入して光コネクタプラグ１６を取付け、またシ
ール部材２１，２２、袋ナツト１９、ナツト２
０を装着する。(7) Insert the tip of the optical fiber 4 into the tip of the center metal fitting 6, attach the optical connector plug 16, and also attach the seal members 21, 22, the cap nut 19, and the nut 2.
Attach 0.
一方、耐圧容器の壁２３に雌光コネクタが設け
られる。雌光コネクタは、前記の中心金具６を受
け入れる嵌合孔２４の外端（容器の外面側）の周
囲に筒形の嵌合ねじ部２５を設け、その内径面に
前記の外筒体９を受け入れる嵌合凹所２８を形成
している。 On the other hand, a female optical connector is provided on the wall 23 of the pressure container. The female optical connector is provided with a cylindrical fitting screw part 25 around the outer end (on the outer surface side of the container) of the fitting hole 24 that receives the central metal fitting 6, and the outer cylindrical body 9 is attached to the inner diameter surface of the fitting screw part 25. A fitting recess 28 is formed therein.
また、上記の嵌合孔２４の内端部には段部２９
が設けられ、壁２３の内側からつば付きのスリー
ブ２６を上記の段部２９まで挿入し、そのつばを
ビス３０により固定している。 Furthermore, a stepped portion 29 is provided at the inner end of the fitting hole 24.
A sleeve 26 with a flange is inserted from the inside of the wall 23 up to the step 29, and the flange is fixed with screws 30.
光フアイバコード２７の先端には、光コネクタ
プラグ３１が設けられ、その光コネクタプラグ３
１をスリーブ２６に挿入すると共に、ロツクナツ
ト３２をスリーブ２６にネジ結合することによ
り、雌光コネクタを構成する。 An optical connector plug 31 is provided at the tip of the optical fiber cord 27, and the optical connector plug 3
A female optical connector is constructed by inserting the connector 1 into the sleeve 26 and screwing the lock nut 32 into the sleeve 26.
実施例の水密光コネクタ、即ち雄水密光コネク
タは、第３図に示すように、雌光コネクタの嵌合
凹所２８、嵌合孔２４及びスリーブ２６にわたり
挿入され、スリーブ２６内で両方の光コネクタプ
ラグ１６，３１が対面する。また中心金具６は嵌
合孔２４に挿入され、外筒体９が嵌合凹所２８に
嵌合される。シール部材２２は嵌合凹所２８の端
面に押し当てられ、また他のシール部材２１は嵌
合凹所２８の内径面に押し当てられる。また、袋
ナツト１９が嵌合ねじ部２５にねじ結合される。 The exemplary watertight optical connector, ie, the male watertight optical connector, is inserted over the mating recess 28, the mating hole 24, and the sleeve 26 of the female optical connector, as shown in FIG. Connector plugs 16 and 31 face each other. Further, the center fitting 6 is inserted into the fitting hole 24, and the outer cylinder body 9 is fitted into the fitting recess 28. The sealing member 22 is pressed against the end surface of the fitting recess 28, and the other sealing member 21 is pressed against the inner diameter surface of the fitting recess 28. Further, the cap nut 19 is screwed to the fitting screw portion 25.
上記のようにして雌雄の光コネクタを結合させ
た状態において、深海中で高水圧が受圧筒１４の
後端面に作用すると、その圧力は受圧筒１４を介
して中心孔１１内の樹脂接着剤１３に作用する。 When the male and female optical connectors are connected as described above, when high water pressure acts on the rear end surface of the pressure cylinder 14 in the deep sea, the pressure is applied to the resin adhesive 13 in the center hole 11 through the pressure cylinder 14. It acts on
なお、上記の圧力は貫通孔５内の樹脂接着剤１
３に対しては狭窄部８′の存在により伝わらない。 Note that the above pressure is applied to the resin adhesive 1 in the through hole 5.
3, it is not transmitted due to the presence of the narrowed portion 8'.
中心孔１１内において、上記の圧力は光フアイ
バ４の軸方向に作用するのみならず、半径方向に
も作用し、中心孔１１内に存在する光フアイバ４
に半径方向の締付力を及ぼす。この締付力によ
り、光フアイバ４と樹脂接着剤１３との界面にお
ける剥離が防止される。 In the center hole 11, the above pressure acts not only in the axial direction of the optical fiber 4, but also in the radial direction, and the pressure is applied to the optical fiber 4 existing in the center hole 11.
exerts a radial clamping force on the This tightening force prevents peeling at the interface between the optical fiber 4 and the resin adhesive 13.
なお、第３図は静水圧下において、伝送損失の
増加量を試験した結果であり、圧力の上昇ととも
に伝送損失が増加する傾向にあるが、実用上差し
支えない程度である。 Note that FIG. 3 shows the results of testing the amount of increase in transmission loss under hydrostatic pressure, and although the transmission loss tends to increase as the pressure increases, it is to a level that does not cause any practical problems.
以上述べたように、この発明は高水圧を受圧筒
に接した硬化型樹脂接着剤を圧力媒体として、外
筒体の中心孔内において光フアイバに締付力を作
用させるようにしたから、その部分で光フアイバ
界面における樹脂接着剤の剥離を防止する。その
ため、高水圧下における水密性が良好であり、ま
た光伝送損失の増加も抑制できる効果がある。
As described above, in this invention, high water pressure is applied to the optical fiber in the center hole of the outer cylinder by using the hardening resin adhesive in contact with the pressure cylinder as a pressure medium. This prevents the resin adhesive from peeling off at the optical fiber interface. Therefore, watertightness under high water pressure is good, and an increase in optical transmission loss can also be suppressed.
更に耐圧容器の壁貫通部に使用した場合は、耐
圧容器の外部において着脱できるので、耐圧容器
の蓋部分を開閉することなく光フアイバ同士の接
続作業を能率よく行なえる効果がある。 Furthermore, when used in a wall penetrating portion of a pressure-resistant container, since it can be attached and removed outside the pressure-resistant container, it is possible to efficiently connect optical fibers to each other without opening and closing the lid of the pressure-resistant container.
第１図は従来の水密貫通部の断面図、第２図は
実施例の水密光コネクタの使用状態における分解
断面図、第３図は同上の結合状態の断面図、第４
図は静水圧試験結果を示すグラフである。
４……光フアイバ、５……貫通孔、６……中心
金具、７……大径部、８……ガイド用突起、８′
……狭窄部、９……外筒体、１０……嵌合凹所、
１１……中心孔、１２……凹凸条、１３……硬化
型樹脂接着剤、１４……受圧筒、１５……挿通
孔、１６……光コネクタプラグ、１７……小径
部、１８……熱収縮チユーブ、１９……袋ナツ
ト、２０……ナツト、２１……シール部材、２２
……シール部材、２３……壁、２４……嵌合孔、
２５……嵌合ねじ部、２６……スリーブ、２７…
…光フアイバコード、２８……嵌合凹所、２９…
…段部、３０……ビス、３１……光コネクタプラ
グ、３２……ロツクナツト。
Fig. 1 is a cross-sectional view of a conventional watertight penetration part, Fig. 2 is an exploded cross-sectional view of the watertight optical connector of the embodiment in a used state, Fig. 3 is a cross-sectional view of the same as above in a connected state, and Fig. 4
The figure is a graph showing the results of a hydrostatic pressure test. 4... Optical fiber, 5... Through hole, 6... Center metal fitting, 7... Large diameter part, 8... Guide projection, 8'
... Narrowing part, 9 ... Outer cylinder body, 10 ... Fitting recess,
11... Center hole, 12... Uneven strip, 13... Curing resin adhesive, 14... Pressure receiving cylinder, 15... Insertion hole, 16... Optical connector plug, 17... Small diameter part, 18... Heat Shrink tube, 19... Cap nut, 20... Nut, 21... Seal member, 22
... Seal member, 23 ... Wall, 24 ... Fitting hole,
25... Fitting screw part, 26... Sleeve, 27...
...Optical fiber cord, 28... Fitting recess, 29...
...Stepped portion, 30...Screw, 31...Optical connector plug, 32...Lock nut.
Claims (1)
の貫通孔５を有し、かつ後端に大径部７を有する
中心金具６、該中心金具６の上記貫通孔５の先端
に取付けられた光コネクタプラグ１６、上記中心
金具６の大径部７に嵌合され、かつ上記貫通孔５
と同芯でそれより大径の中心孔１１を有する外筒
体９、及び該外筒体９の中心孔１１の後端に挿入
され、かつその後端面が外部に露出した受圧筒１
４とを有し、上記受圧筒１４、中心孔１１及び貫
通孔５に所要の間〓をおいて挿通した光フアイバ
４の先端を上記光コネクタプラグ１６に接続し、
上記の中心孔１１及び貫通孔５内の光フアイバ４
のまわりの間〓に高水圧下で変形する硬化型樹脂
接着剤１３を充填したことを特徴とする水密光コ
ネクタ。1. A center metal fitting 6 having a through hole 5 with an inner diameter approximately equal to the outer diameter of the optical fiber 4 at the center and a large diameter portion 7 at the rear end, which is attached to the tip of the through hole 5 of the center metal fitting 6. An optical connector plug 16 is fitted into the large diameter portion 7 of the center metal fitting 6 and is connected to the through hole 5.
an outer cylindrical body 9 having a center hole 11 concentric with and having a larger diameter, and a pressure receiving cylinder 1 inserted into the rear end of the center hole 11 of the outer cylindrical body 9 and having its rear end surface exposed to the outside.
4, the tip of the optical fiber 4 inserted through the pressure receiving tube 14, the center hole 11 and the through hole 5 with a required distance is connected to the optical connector plug 16,
Optical fiber 4 in the center hole 11 and through hole 5
A watertight optical connector characterized in that the space around the holder is filled with a curable resin adhesive 13 that deforms under high water pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12693083A JPS6019113A (en) | 1983-07-14 | 1983-07-14 | Connector in watertight piercing part of pressure resisting vessel of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12693083A JPS6019113A (en) | 1983-07-14 | 1983-07-14 | Connector in watertight piercing part of pressure resisting vessel of optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6019113A JPS6019113A (en) | 1985-01-31 |
| JPH0381123B2 true JPH0381123B2 (en) | 1991-12-27 |
Family
ID=14947414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12693083A Granted JPS6019113A (en) | 1983-07-14 | 1983-07-14 | Connector in watertight piercing part of pressure resisting vessel of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019113A (en) |
-
1983
- 1983-07-14 JP JP12693083A patent/JPS6019113A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6019113A (en) | 1985-01-31 |
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