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WO2006001165A1 - Ferrule multicolore - Google Patents

Ferrule multicolore Download PDF

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Publication number
WO2006001165A1
WO2006001165A1 PCT/JP2005/010241 JP2005010241W WO2006001165A1 WO 2006001165 A1 WO2006001165 A1 WO 2006001165A1 JP 2005010241 W JP2005010241 W JP 2005010241W WO 2006001165 A1 WO2006001165 A1 WO 2006001165A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
ferrule
core ferrule
ferrules
buffer portion
Prior art date
Application number
PCT/JP2005/010241
Other languages
English (en)
Japanese (ja)
Inventor
Masahiro Yamada
Kouichiro Yoshimura
Original Assignee
Honda Tsushin Kogyo Co., Ltd.
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 Honda Tsushin Kogyo Co., Ltd. filed Critical Honda Tsushin Kogyo Co., Ltd.
Priority to JP2006528443A priority Critical patent/JPWO2006001165A1/ja
Publication of WO2006001165A1 publication Critical patent/WO2006001165A1/fr

Links

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
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means

Definitions

  • the present invention relates to a multi-fiber ferrule for holding an optical fiber (core wire) in an optical connector, for example.
  • a multi-core connector provided with a plurality of optical connector core wires
  • a plurality of round holes are formed in a ferrule in which ceramic raw material powder such as zirconia powder is formed into a predetermined shape by a molding die. Is formed by inserting an optical fiber into the round hole and fixing with an adhesive (see, for example, JP-A-2003-202454). Disclosure of the invention
  • each independent single-core ferrule can be finely moved, so troubles when inserting into the sleeve are reduced. Force In this case, the single-core ferrule inserted into the sleeve does not release V, and an elastic member such as a coil spring is required for each single-core ferrule so that the number of parts increases and the cost is reduced. It will be bulky.
  • the present invention solves such a problem in the conventional ferrule, and can be manufactured with a small number of parts, and when the ferrule is connected to the sleeve, it is caused by misalignment of the axial center between the ferrule and the sleeve. It provides a multi-core ferrule that does not cause any problems.
  • the multi-fiber ferrule according to the present invention includes a plurality of single-core ferrules, a base portion of the plurality of single-core ferrules, and a base portion. And a buffer portion for absorbing the misalignment of the shaft when the plurality of single-core ferrules are connected to the sleeve.
  • the buffer portion may be provided with flexibility by bending the connecting portion.
  • the buffer portion is formed by forming a concave groove around the single-core ferrule of the base portion, and increasing the flexibility of the single-core ferrule by increasing the length of the single-core ferrule. Good.
  • the multi-core ferrule having the curved connecting portion may be integrally formed with a flexible member.
  • the single-core ferrule may be cylindrical, and the buffer portion may be a recess formed at a desired depth in the outer peripheral portion of the cylindrical single-core ferrule.
  • the buffer portion may be a combination of a concave portion on the outer peripheral portion of the single-core ferrule and a concave groove provided around the single-core ferrule on the base portion.
  • the number of single-core ferrules is n (n is a natural number greater than or equal to 2), the number of fan seats is S, and the number of panels within the range expressed by l ⁇ S ⁇ n— It is preferable that a seat is provided.
  • a method for integrally connecting each base portion and the connecting portion a method by integral molding, a method by adhesion, welding, and pressure bonding can be used, but the method is not limited thereto.
  • the multi-fiber flute of the present invention has a force buffering portion in which the single-fiber flutes are integrally connected by the connecting portion, so that the deviation of the shaft center when connecting to the sleeve is absorbed.
  • the connecting part that connects each single-core ferrule has flexibility so that the buffer part is also used as a buffer part, and the connecting part is formed rigidly so that the buffer part is attached to the base part of the single-core ferrule. In either case, the displacement of the shaft center is finely adjusted and absorbed, so that each single-core ferrule and each sleeve can be connected without hindrance.
  • the mold for manufacturing the multi-fiber ferrule does not need to be a mold in which the positional accuracy of each manufactured single-core ferrule and its optical fiber insertion hole is high.
  • the manufacturing cost of the mold can be reduced.
  • each single-core ferrule can be handled in the same way as an independent ferrule, and the pressing elastic member necessary for it can be covered with a smaller number of parts than in the past, thereby reducing costs.
  • FIG. 1A is a front view of a multi-core fleur 1 according to a first embodiment of the present invention.
  • FIG. 1B is a side view of the multi-core ferrule 1 according to the first embodiment.
  • FIG. 1C is a plan view of the multi-core ferrule 1 according to the first embodiment.
  • FIG. 1D is a bottom view of the multi-core ferrule 1 according to the first embodiment.
  • FIG. 2A is a front view of the multi-core ferrule 1 of the first embodiment with the elastic member 6 attached to the panel seat.
  • FIG. 2B is a side view of the multi-core ferrule 1 of the first embodiment with the elastic member 6 attached to the panel seat.
  • FIG. 3A is a front view showing a cutaway part of a multi-core ferrule la according to a second embodiment of the present invention.
  • FIG. 3B is a side view of the multi-core ferrule la according to the second embodiment.
  • FIG. 3C is a plan view of a multi-core ferrule la according to the second embodiment.
  • FIG. 3D is a bottom view of the multi-core ferrule la according to the second embodiment.
  • FIG. 4A is a front view showing a state in which the elastic member 6 is attached to the panel seat on the multi-core ferrule la shown by cutting away a part shown in FIG. 3A.
  • FIG. 4B is a side view of the multi-fiber ferrule la according to the second embodiment with the elastic member 6 attached to the panel seat.
  • FIG. 5A is a front view showing a cutaway part of a multi-core ferrule lb according to a third embodiment of the present invention.
  • FIG. 5B is a side view of the multi-core ferrule lb according to the third embodiment.
  • FIG. 5C is a plan view of the multi-core ferrule lb according to the third embodiment.
  • FIG. 5D is a bottom view of the multi-core ferrule lb according to the third embodiment.
  • FIG. 5E is a cross-sectional view taken along line AA in FIG. 5A showing a multi-core ferrule lb.
  • FIG. 6A is a front view showing a cutaway part of a multi-core ferrule lc according to a fourth embodiment of the present invention.
  • FIG. 6B is a side view of the multi-core ferrule lc according to the fourth embodiment.
  • FIG. 6C is a plan view of the multi-core ferrule lc according to the fourth embodiment.
  • FIG. 6D is a bottom view of the multi-core ferrule lc according to the fourth embodiment.
  • the multi-fiber ferrule 1 includes a plurality of single-core ferrules 2 and 2 and a connecting portion in the ferrule for an optical connector.
  • the connecting portion 3 functions as the buffer portion 4 that absorbs the shift of the shaft center.
  • the connecting portion 3 in the first embodiment has a wide band shape.
  • This multi-core ferrule 1 is made of a synthetic resin suitable for precision processing using liquid crystal polymer (LCP) or the like, and the center of the single-core ferrule 2 is provided with round holes 2a and 2b for inserting optical fibers. It has been.
  • One of the round holes 2a is formed to have a diameter substantially the same as the diameter of the optical fiber to be inserted, and the other round hole 2b is formed to have a slightly larger diameter in consideration of positional accuracy with respect to the round hole 2a.
  • the base portion 2c of the single-core ferrule 2 is formed in a rectangular shape, and the wall surface force coupling portion 3 that faces it is extended with an appropriate width, and its central portion is curved to be flexible. have. This makes it possible to adjust the displacement of the axis of the single-core ferrule 2 relatively finely. Therefore, in the first embodiment, the flexible connecting portion 3 is also used as the buffer portion 4. The degree of this curvature depends on the accuracy of the single-core ferrule 2 and the accuracy of the sleeve to be fitted, and is a design matter.
  • a panel seat 5 is provided on the bottom surface of the base portion 2c of the multi-core ferrule 1 as shown in FIGS. 2A and 2B. This is because when this multi-core ferrule 1 is connected, a coil spring, which is an elastic member 6 that presses the single-core ferrule 2 inserted into the sleeve so as not to be separated after contacting the other party, is required. is there.
  • the number of single-core ferrules is n (n is a natural number, n ⁇ 2)
  • the number of panel seats is S
  • l ⁇ Is a natural number within the range expressed by S ⁇ n—l
  • a number of panel seats 5 are provided.
  • the connecting portion 3a of the multi-core ferrule la is formed as a rigid connecting portion, and the positions of the two-core ferrules 2, 2 are defined. Position with high accuracy.
  • groove 2e is provided in the circumference
  • a hole 2d is provided inside the base 2c of the single-core ferrule 2 to prevent sink marks.
  • a panel seat 5 is provided on the bottom surface of the connecting portion 3a.
  • the elastic member 6 is attached to the panel seat 5 described above.
  • the single-core ferrule 2 is easily bent by providing the concave groove 2e as the buffer portion 4, even if the single-core ferrule has a shift in the axial center, the shift is absorbed by the buffer portion 4.
  • the single-core ferrule 2 can be inserted into the sleeve without any trouble. Further, since the misalignment of the shaft center is absorbed by the multi-core ferrule itself, only one elastic member 6 is required.
  • the multi-fiber ferrule lb according to the third embodiment of the present invention is used as a buffer portion 4 in addition to the concave groove 2e in the base portion 2c similar to the second embodiment.
  • the cylindrical single-core ferrule 2 is composed of one or a plurality of (four in the example shown in FIG. 5E) recesses 2f perforated at a desired depth.
  • the buffer portion may be only the concave portion 2f without the concave groove 2e. Other configurations are the same as those of the second embodiment.
  • the concave portion 2f is disposed in an arbitrary angular range in the circumferential direction on the surface of the single-core ferrule.
  • the shape of the recess 2f is not particularly limited as long as it satisfies the function as a buffer portion.
  • flexibility is imparted to the single core ferrule by the concave groove 2e and the concave portion 2f or only by the concave portion 2f, and the deviation of the axial center when the single core ferrule 2 is inserted into the sleeve is flexibly adjusted, It can be inserted without any problem.
  • the multi-fiber fl lc according to the fourth embodiment of the present invention is such that the connecting portion 3b is a strong rigid body.
  • the connecting portion 3b is provided with a wall 3c extending further upward than the connecting portion 3a in the third embodiment.
  • Single core ferrule 2, 2 The positioning of the shaft center is determined with high accuracy, and the misalignment of the shaft center is absorbed by the concave groove 2e acting as the buffer portion 4.
  • the multi-fiber ferrule according to the present invention is useful, for example, for holding an optical fiber (core wire) in a multi-fiber connector provided with a plurality of core wires of the optical connector.

Landscapes

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

Abstract

Ferrule multicolore (1) pour un connecteur optique, ayant des ferrules monoconductrices (2, 2,...) disposées côte-à-côte, des sections basales (2c) pour les ferrules monoconductrices, et une section de raccordement (3) pour raccorder ensemble les sections basales. Dans la ferrule multicolore, il est fourni une section matelassée (4) pour absorber le déplacement des axes d'une ferrule monoconductrice (2) et un manchon qui se produit lorsqu’elles sont raccordées. La structure permet à la ferrule et au manchon d’être raccordés sans problème, élimine le besoin de maintenir un haut degré de précision positionnelle pour le trou d’insertion d’une fibre optique et réduit le nombre de pièces pour réduire les coûts.
PCT/JP2005/010241 2004-06-25 2005-06-03 Ferrule multicolore WO2006001165A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006528443A JPWO2006001165A1 (ja) 2004-06-25 2005-06-03 多心フェルール

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004-187903 2004-06-25
JP2004187903 2004-06-25

Publications (1)

Publication Number Publication Date
WO2006001165A1 true WO2006001165A1 (fr) 2006-01-05

Family

ID=35781687

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/010241 WO2006001165A1 (fr) 2004-06-25 2005-06-03 Ferrule multicolore

Country Status (2)

Country Link
JP (1) JPWO2006001165A1 (fr)
WO (1) WO2006001165A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009223149A (ja) * 2008-03-18 2009-10-01 Fujikura Ltd ハイパワー用光コネクタ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06201951A (ja) * 1992-11-13 1994-07-22 Internatl Business Mach Corp <Ibm> 光ファイバ・コネクタ・ハウジング、光ファイバ・レセプタクル、およびアクセサリ装置
JP2003329882A (ja) * 2002-05-09 2003-11-19 Seiko Instruments Inc 斜めｐｃコネクタ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06201951A (ja) * 1992-11-13 1994-07-22 Internatl Business Mach Corp <Ibm> 光ファイバ・コネクタ・ハウジング、光ファイバ・レセプタクル、およびアクセサリ装置
JP2003329882A (ja) * 2002-05-09 2003-11-19 Seiko Instruments Inc 斜めｐｃコネクタ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009223149A (ja) * 2008-03-18 2009-10-01 Fujikura Ltd ハイパワー用光コネクタ
US8206041B2 (en) 2008-03-18 2012-06-26 Fujikura Ltd. High power optical connector and optical fiber system using the same

Also Published As

Publication number Publication date
JPWO2006001165A1 (ja) 2008-04-17

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