JPH03118712A - Optical fiber/power composite cable joint box - Google Patents
Optical fiber/power composite cable joint boxInfo
- Publication number
- JPH03118712A JPH03118712A JP25590689A JP25590689A JPH03118712A JP H03118712 A JPH03118712 A JP H03118712A JP 25590689 A JP25590689 A JP 25590689A JP 25590689 A JP25590689 A JP 25590689A JP H03118712 A JPH03118712 A JP H03118712A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber cable
- power
- cable core
- optical
- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 238000004804 winding Methods 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052802 copper Inorganic materials 0.000 abstract description 7
- 239000010949 copper Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000002093 peripheral effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000004078 waterproofing Methods 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
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4448—Electro-optic
-
- 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
- G02B6/4416—Heterogeneous cables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Cable Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的コ
（産業上の利用分野）
本発明は光ファイバーケーブルと電力ケーブルの複合ケ
ーブルの接続部に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Field of Industrial Application)] The present invention relates to a joint of a composite cable of an optical fiber cable and a power cable.
（従来の技術）
一般に、光／電力複合ケーブルの接続部は、光ファイバ
ーケーブルの接続に数メートルの作業余長を必要とし、
かつ小さい曲げ半径で曲げると破断したり損失増加が起
こるため、第６図に示すように、光／電力複合ケーブル
１中の電力ケーブル接続部２を金属接続箱３に収納し、
光ファイバーケーブル余長部４は別の専用接続箱５に収
納して構成されていた。(Prior art) Generally, the connection part of optical/power composite cable requires several meters of extra work length to connect the optical fiber cable.
In addition, bending with a small bending radius may cause breakage or increase loss, so as shown in FIG.
The optical fiber cable extra length portion 4 was configured to be housed in a separate dedicated junction box 5.
（発明が解決しようとする課題）
このように、従来の光／電力複合ケーブルの接続部では
、電力ケーブル接続部と光ファイバーケーブル接続部が
別々になっているため、広い収納スペースを必要とし、
かつ作業も煩雑であるという問題があった。(Problems to be Solved by the Invention) As described above, in the conventional optical/power composite cable connection section, the power cable connection section and the optical fiber cable connection section are separate, so a large storage space is required.
In addition, there was a problem that the work was complicated.
本発明は、このような従来の欠点を解決すべくなされた
もので、上記欠点のない光／電力複合ケーブルを提供す
ることを目的とする。The present invention was made to solve these conventional drawbacks, and it is an object of the present invention to provide a combined optical/power cable that does not have the above drawbacks.
［発明の構成コ
（課題を解決するための手段）
上記目的を達成するため、本発明の光／電力複合ケーブ
ル接続箱は、光／電力複合ケーブルの光ファイバーケー
ブル芯線および電力ケーブル芯線をそれぞれ金属接続管
内に収容してなる接続箱において、前記金属接続管内に
前記電力ケーブル芯線の接続部を同軸的に囲む巻胴を配
設し、この巻胴の外周に、前記光ファイバーケーブル芯
線の余長部の束を巻収したことを特徴としている。[Structure of the Invention (Means for Solving the Problem) In order to achieve the above object, the optical/power composite cable junction box of the present invention connects the optical fiber cable core wire and the power cable core wire of the optical/power composite cable with metal, respectively. In a junction box housed in a pipe, a winding drum that coaxially surrounds the connection part of the power cable core wire is disposed in the metal connection pipe, and the extra length of the optical fiber cable core wire is attached to the outer periphery of the winding drum. It is characterized by having been collected in bundles.
（作用）
本発明の光／電力複合ケーブル用接続箱は、電力ケーブ
ル接続部を同軸的に囲むように巻胴を配設して曲率半径
の大きい広い収納部を形成したので、光ファイバーケー
ブル芯線余長部を束状のまま巻収することができる。す
なわち光ファイバーケーブル芯線接続部と電力ケーブル
芯線接続部を一体化して金属接続管に収容することが可
能となり接続部全体が小形化する。また光ファイバーケ
ーブルの保護被覆から出た部分の全体が金属接続管内に
収納されるので外傷に対する保護が充分に行なわれ、さ
らに束状で巻収されるので分岐の際にも光ファイバーケ
ーブル芯線を容易に取り出せる。(Function) In the optical/power composite cable junction box of the present invention, the winding drum is arranged so as to coaxially surround the power cable connection part to form a wide storage part with a large radius of curvature. The long portion can be wound up as a bundle. That is, the optical fiber cable core connection part and the power cable core connection part can be integrated and housed in a metal connection tube, and the entire connection part can be made smaller. In addition, the entire part of the optical fiber cable that comes out of the protective coating is housed inside the metal connection tube, providing sufficient protection against external damage.Furthermore, since it is wound up in a bundle, the optical fiber cable core wire can be easily connected when branching. It can be taken out.
（実施例） 以下、図面を参照しながら、本発明の詳細な説明する。(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図に示すように、この実施例の光／電力複合ケーブ
ル接続箱は、接続銅管６の内周面に電力ケーブル接続部
７を同軸的に囲むように環状の光ファイバーケーブル芯
線収納部８が形成されている。この収納部８は、軸方向
断面が両端にフランジ部９を有する外周に向けて開放す
るコ字状をなしており、このコ字状の凹部に光ファイバ
ーケーブル芯線の余長部１５の束を収納し、フランジ部
９にＯリングを介在させて、接続銅管６の構成部分６ｂ
の内周面に固定されている。As shown in FIG. 1, the optical/power composite cable junction box of this embodiment has an annular optical fiber cable core storage section 8 that coaxially surrounds the power cable connection section 7 on the inner peripheral surface of the connection copper tube 6. is formed. The storage section 8 has a U-shaped axial cross section that opens toward the outer periphery with flanges 9 at both ends, and a bundle of extra lengths 15 of optical fiber cable cores is stored in this U-shaped recess. Then, by interposing an O-ring in the flange part 9, the component part 6b of the connecting copper pipe 6 is
is fixed to the inner circumferential surface of the
そして、この接続箱は次のようにして組立られる。すな
わち、まず接続銅管６の構成部分６ａ、６ｂと光ファイ
バーケーブル芯線収納部８を、接続されるべき光／電力
複合ケーブル１２に、あらかじめ嵌挿しておき、光ファ
イバーケーブル１３の余長を充分とった上で電力ケーブ
ル接続部７を常法によって形成する。一方、光ファイバ
ーケーブル芯線は、まずＶ清洗などにより接続し、この
接続部１４を含む余長部１５を第２図に示すように、ル
ープ状に束巻きし、さらに第３図に示すように、これを
楕円状にして環状の光ファイバーケーブル芯線収納部８
に巻収し、任意の手段により固定する。そしてこの芯線
収納部８を、前述したように接続銅管６の構成部分６ｂ
の内周面に固定し、最後に接続銅管６の各構成部分６ａ
ｓ ６ｂを電力ケーブル接続部７上に引き出し、フラン
ジ部１０により接続し、接続鋼管６の基部と各光／電力
複合ケーブル１２間に自己融着テープ１１等を巻回して
防水処理を施す。This junction box is assembled as follows. That is, first, the component parts 6a and 6b of the connecting copper tube 6 and the optical fiber cable core storage part 8 were inserted into the optical/power composite cable 12 to be connected in advance, and enough extra length of the optical fiber cable 13 was taken. Then, the power cable connection portion 7 is formed in a conventional manner. On the other hand, the optical fiber cable core wires are first connected by V-cleaning or the like, and the extra length 15 including the connection part 14 is wound into a loop as shown in FIG. 2, and then as shown in FIG. This is made into an ellipse to form an annular optical fiber cable core storage section 8.
Roll it up and secure it by any means. Then, as described above, this core wire storage part 8 is connected to the component part 6b of the connecting copper pipe 6.
and finally each component part 6a of the connecting copper pipe 6.
s 6b is pulled out onto the power cable connection part 7 and connected by the flange part 10, and a self-fusion tape 11 or the like is wound between the base of the connection steel pipe 6 and each optical/power composite cable 12 to perform waterproofing.
第４図は、本発明の他の実施例の縦断面図である。なお
以下の実施例において、第１図に示した実施例と同一部
分には同一符号を付して重複する説明を省略する。FIG. 4 is a longitudinal sectional view of another embodiment of the invention. In the following embodiments, parts that are the same as those in the embodiment shown in FIG.
この実施例は２条の光ファイバーケーブルを有する光／
電力複合ケーブル接続箱に本発明を適用したもので、第
１図に示した光ファイバーケーブル芯線収納部８と同様
の収納部、８ ａ ｓ ８ ｂを電力ケーブル接続部７
の軸方向に並べて構成した例であり、光ファイバーケー
ブル芯線の余長部１５ａ、１５ｂは、第２図および第３
図に示す方法で、それぞれ収納部８ａ、８ｂに巻収され
る。この実施例の接続箱は第１図に示した実施例と同様
にして組立られる。This example is an optical/
The present invention is applied to a power composite cable junction box, in which a storage section 8 a s 8 b similar to the optical fiber cable core storage section 8 shown in FIG.
This is an example in which the fiber optic cables are arranged side by side in the axial direction.
By the method shown in the figure, they are wound up in the storage sections 8a and 8b, respectively. The junction box of this embodiment is assembled in the same manner as the embodiment shown in FIG.
第５図は、さらに本発明の他の実施例を示す縦断面図で
ある。この実施例も２条の光ファイバーケーブルを有す
る光／電力複合ケーブル接続箱に本発明を適用した例で
あるが、この実施例は、第１図の光ファイバーケーブル
芯線収納部８と同様の大径の光フアイバ−ケーブル芯線
収納部８ｃ内周面に光ファイバーケーブル芯線収納部８
ｄが嵌合される構造となっている。そして、光ファイバ
ーケーブル芯線収納部８ｃに光ファイバーケーブル芯線
の余長部１５ｃを第２図および第３図を用いて説明した
方法により巻収し、この収納部８ｃを第１図を用いて説
明した方法で接続銅管６の構成部分６ｂの内周面に固定
した後、この光ファイバーケーブル芯線収納部８ｃの内
周面に、同じ方法により、芯線余長部１５ｄを収納した
光ファイバーケーブル芯線収納部８ｄが固定される。二
の実施例の接続箱も第１図に示した実施例と同様にして
組立られる。FIG. 5 is a longitudinal sectional view showing still another embodiment of the present invention. This embodiment is also an example in which the present invention is applied to an optical/power composite cable junction box having two optical fiber cables. Optical fiber cable core wire storage portion 8c is provided on the inner peripheral surface of the optical fiber cable core wire storage portion 8c.
d is fitted into the structure. Then, the extra length portion 15c of the optical fiber cable core wire is wound into the optical fiber cable core storage portion 8c by the method described using FIGS. 2 and 3, and this storage portion 8c is wound by the method described using FIG. 1. After fixing to the inner peripheral surface of the component part 6b of the connecting copper tube 6, an optical fiber cable core storage part 8d containing the core extra length part 15d is installed on the inner peripheral surface of this optical fiber cable core storage part 8c by the same method. Fixed. The junction box of the second embodiment is assembled in the same manner as the embodiment shown in FIG.
なお、以上の実施例では、１条または、２条の光ファイ
バーケーブルを有する光／電力複合ケーブルに対する接
続箱であったが、さらに多条の光ファイバーケーブルを
有する光／電力複合ケーブルにも、光ファイバーケーブ
ル芯線収納部を多層化することにより、適用することが
可能である。In addition, in the above embodiment, the connection box is for an optical/power composite cable having one or two optical fiber cables, but it can also be used for an optical/power composite cable having multiple optical fiber cables. This can be applied by making the core wire storage section multi-layered.
［発明の効果］
従来の方法では、電力ケーブル芯線接続部と光ファイバ
ーケーブル芯線接続部がそれぞれ別の接続箱に収納され
ていたが、本発明の光／電力複合ケーブル接続箱によれ
ば、電力ケーブル芯線接続部と光ファイバーケーブル芯
線接続部が一体化されるため、収納スペースが小さくな
るとともにケーブル敷設作業が簡単になる。また海底ケ
ーブルなどのように接続部が２つに分けられない場合な
どに有効である。さらに本発明の光／電力ケーブル接続
箱では、光ファイバーケーブルが接続箱外部に敷設され
ることがないので光ファイバーケーブルの外傷性や防水
性などの観点から信頼性が高くなる。[Effect of the invention] In the conventional method, the power cable core connection part and the optical fiber cable core connection part were housed in separate connection boxes, but according to the optical/power composite cable connection box of the present invention, the power cable core connection part and the optical fiber cable core connection part were housed in separate connection boxes. Since the core wire connection section and the optical fiber cable core connection section are integrated, storage space is reduced and cable installation work is simplified. It is also effective in cases where the connection part cannot be divided into two, such as in submarine cables. Further, in the optical/power cable junction box of the present invention, since the optical fiber cable is not laid outside the junction box, the reliability of the optical fiber cable is increased from the viewpoint of damage resistance and waterproofness.
第１図は、本発明の実施例の接続箱を示す縦断面図、ｉ
２図、第３図は、光ファイバーケーブル芯線の収納状態
を示す図、第４図、第５図は、他の実施例を示す縦断面
図、第６図は、従来の方法を示す概略図である。
６・・・・・・・・・・・・・・・接続鋼管７・・・・
・・・・・・・・・・・電力ケーブル芯線接続部８．８
ａ、８ｂ。
８ｃ、８ｄ・・・光ファイバーケーブル芯線収納部１２
・・・・・・・・・・・・光／電力複合ケーブル１３・
・・・・・・・・・・・光ファイバーケーブル１５．１
５ｇ、１５ｂ、１５ｃｑFIG. 1 is a longitudinal sectional view showing a junction box according to an embodiment of the present invention, i
Figures 2 and 3 are diagrams showing how the optical fiber cable core wires are stored, Figures 4 and 5 are longitudinal sectional views showing other embodiments, and Figure 6 is a schematic diagram showing the conventional method. be. 6......Connecting steel pipe 7...
・・・・・・・・・Power cable core connection part 8.8
a, 8b. 8c, 8d...Optical fiber cable core storage section 12
......... Optical/power composite cable 13.
・・・・・・・・・・・・Optical fiber cable 15.1
5g, 15b, 15cq
Claims (1)
び電力ケーブル芯線をそれぞれ金属接続管内に収容して
なる接続箱において、前記金属接続管内に前記電力ケー
ブル芯線の接続部を同軸的に囲む巻胴を配設し、この巻
胴の外周に、前記光ファイバーケーブル芯線の余長部の
束を巻収したことを特徴とする光／電力複合ケーブル用
接続箱。In a junction box in which an optical fiber cable core wire and a power cable core wire of an optical/power composite cable are accommodated in a metal connecting tube, a winding drum coaxially surrounding a connecting portion of the power cable core wire is arranged in the metal connecting tube. A junction box for an optical/power composite cable, characterized in that a bundle of the extra length of the optical fiber cable core wire is wound around the outer periphery of the winding drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25590689A JPH03118712A (en) | 1989-09-29 | 1989-09-29 | Optical fiber/power composite cable joint box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25590689A JPH03118712A (en) | 1989-09-29 | 1989-09-29 | Optical fiber/power composite cable joint box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03118712A true JPH03118712A (en) | 1991-05-21 |
Family
ID=17285215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25590689A Pending JPH03118712A (en) | 1989-09-29 | 1989-09-29 | Optical fiber/power composite cable joint box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03118712A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08223765A (en) * | 1995-02-09 | 1996-08-30 | Fujikura Ltd | Joint of power cable with optical fiber |
| JP2007049797A (en) * | 2005-08-09 | 2007-02-22 | Viscas Corp | Connection box for optical compound power cable |
| US8676020B2 (en) | 2009-04-29 | 2014-03-18 | Abb Technology Ag | Repair box for optical fibre composite electric power cable |
-
1989
- 1989-09-29 JP JP25590689A patent/JPH03118712A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08223765A (en) * | 1995-02-09 | 1996-08-30 | Fujikura Ltd | Joint of power cable with optical fiber |
| JP2007049797A (en) * | 2005-08-09 | 2007-02-22 | Viscas Corp | Connection box for optical compound power cable |
| JP4690821B2 (en) * | 2005-08-09 | 2011-06-01 | 株式会社ビスキャス | Connection box for optical composite power cable |
| US8676020B2 (en) | 2009-04-29 | 2014-03-18 | Abb Technology Ag | Repair box for optical fibre composite electric power cable |
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