WO2014185260A1 - 光コネクタ - Google Patents

光コネクタ Download PDF

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Publication number
WO2014185260A1
WO2014185260A1 PCT/JP2014/061851 JP2014061851W WO2014185260A1 WO 2014185260 A1 WO2014185260 A1 WO 2014185260A1 JP 2014061851 W JP2014061851 W JP 2014061851W WO 2014185260 A1 WO2014185260 A1 WO 2014185260A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
guide member
light guide
fot
optical connector
Prior art date
Application number
PCT/JP2014/061851
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
直嗣 芹澤
Original Assignee
矢崎総業株式会社
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 矢崎総業株式会社 filed Critical 矢崎総業株式会社
Priority to DE112014002387.6T priority Critical patent/DE112014002387B4/de
Publication of WO2014185260A1 publication Critical patent/WO2014185260A1/ja

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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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures

Definitions

  • the present invention relates to an optical connector used in the field of optical communication, and more particularly to an optical connector in which a light guide member is disposed between a FOT (Fiber-Optic-Transceiver) and a counterpart.
  • FOT Fiber-Optic-Transceiver
  • optical connectors are used for optical communications such as OA, FA, and on-vehicle equipment.
  • the optical connector includes an optical connector on the plug side and an optical connector on the receptacle side (see, for example, Patent Document 1 below).
  • the optical connector on the plug side has a housing (optical connector housing), and a ferrule provided on the optical fiber terminal is accommodated and held in this housing.
  • the optical connector on the receptacle side is mounted on a circuit board built in the device.
  • the optical connector housing on which the plug side is fitted (optical connector housing) and the light-emitting side FOT (Fiber-Optic-Transceiver) ) And the light receiving side FOT, a shield case covering the light emitting side FOT and the light receiving side FOT, two sleeves, and two light guide members.
  • the housing of the optical connector on the receptacle side is a box-shaped resin part that is placed and fixed on the circuit board.
  • the connector fitting portion is formed on the front side, and the FOT accommodating portion is formed on the rear side.
  • the FOT accommodating portion is formed as a portion for accommodating the light emitting side FOT and the light receiving side FOT side by side.
  • two straight through holes are formed at a predetermined interval.
  • the two through holes are arranged in accordance with the positions of the light emitting element and the light receiving element, and are formed so as to communicate with the connector fitting portion. Sleeves are respectively inserted into the two through holes.
  • the light guide members are inserted into the two sleeves from the FOT accommodating portion side. Also, the ferrules of the optical connector on the plug side are inserted into the two sleeves from the connector fitting portion side.
  • the two light guide members are disposed so as to be interposed between the light emitting element and the light receiving element and the optical fiber exposed at the ferrule end face.
  • the two light guide members are light transmissive, and have a portion that functions as a lens in Patent Document 1 below.
  • the two light guide members are small parts and are formed in the same shape.
  • the conventional optical connector on the receptacle side has the following problems because the light guide member is a small component as described above.
  • the light guide member has a problem in that the insertion direction is limited, and erroneous insertion may occur unless sufficient care is taken. For this reason, there is a problem that workability deteriorates.
  • the portion functioning as a lens cannot be individually optimized for the light emitting side FOT and the light receiving side FOT. This is because the lenses cannot be distinguished from each other even if they are optimized. Moreover, it is also a cause of misassembly. Accordingly, the portion functioning as a lens cannot be optimized in shape, and is formed in a common shape (the same shape).
  • the present invention has been made in view of the above circumstances, and an object thereof is to provide an optical connector capable of improving workability and capable of optimizing the shape.
  • the present invention provides a light emitting side FOT (Fiber ⁇ ⁇ Optic TransceiverF) having a light emitting element, a light receiving side FOT having a light receiving element, and the light emitting side FOT and the light receiving side FOT side by side.
  • An optical connector comprising: a connector housing having a FOT housing portion for housing; and a light guide member assembled to the connector housing in accordance with the positions of the light emitting side FOT and the light receiving side FOT.
  • the light emitting side light guide member in which the lens for the side FOT is formed, the light receiving side light guide member in which the lens for the light receiving side FOT is formed, and the light emitting side light guide member and the light receiving side light guide member are integrated. It has the connection part connected so that it may do.
  • the present invention having such a feature, regarding the light guide member, two small parts are connected and integrated by a connecting portion, and thus can be used as one large part. Further, according to the present invention, since they are integrated into one component, it is possible to form a light emitting side FOT lens on one side and a light receiving side FOT lens on the other side.
  • the light guide member is connected by the bridge-shaped connecting portion having elasticity in a state where the light emitting side light guide member and the light receiving side light guide member have a space.
  • the connecting portion is disposed so as to be positioned at one end side in a direction orthogonal to the direction in which the light emitting side light guide member and the light receiving side light guide member are arranged and accommodated.
  • the light-emitting side light guide member and the light-receiving side light guide member are arranged so that the space is formed in a slit shape having an opening at the other end side opposite to the one end.
  • the connecting portion is formed in an elastic bridge shape, and the space between the light emitting side light guide member and the light receiving side light guide member is formed in a slit shape. Even if the pitch between the light-emitting side light guide member and the light-receiving side light guide member does not exactly match the pitch of the assembly portion of the connector housing, it can be absorbed by bending.
  • the present invention is characterized in that in the above optical connector, the connecting portion is formed as a handle portion.
  • FIG. 1 is a configuration diagram of an optical connector of the present invention.
  • FIG. 2 is a perspective view of the transmission / reception integrated lens.
  • FIG. 3 is a view of the transmission / reception integrated lens viewed from the A viewing direction of FIG.
  • FIG. 4 is an explanatory diagram relating to the assembly of the transmission / reception integrated lens.
  • the optical connector mounted on the circuit board includes a light emitting side FOT (Fiber Optic Transceiver), a light receiving side FOT, a connector housing, a shield case, and a transmission / reception integrated lens.
  • the transmission / reception integrated lens is integrally formed by connecting a light emitting side light guide member in which a light emitting side FOT lens is formed and a light receiving side light guide member in which a light receiving side FOT lens is formed by a connecting portion.
  • the connecting portion is formed in a bridge shape having elasticity that can narrow the pitch between the light emitting side light guide member and the light receiving side light guide member. Between the light-emitting side light guide member and the light-receiving side light guide member, a space is formed that allows bending to approach them.
  • FIG. 1 is a configuration diagram of an optical connector of the present invention.
  • 2 is a perspective view of the transmission / reception integrated lens
  • FIG. 3 is a view of the transmission / reception integrated lens viewed from the direction A in FIG. 2
  • FIG. 4 is an explanatory diagram relating to the assembly of the transmission / reception integrated lens.
  • the optical connector includes a plug-side optical connector and a receptacle-side optical connector 1, and the receptacle-side optical connector 1 (hereinafter abbreviated as “optical connector 1”) is mounted on a circuit board 2. Is done.
  • the optical connector 1 includes a light emitting side FOT (Fiber Optic Transceiver) 3, a light receiving side FOT4, a connector housing 5, a shield case 6, and a transmission / reception integrated lens 7 which is a characteristic part of the present invention. .
  • FOT Field Optic Transceiver
  • FIG. 1 it is assumed that the light emitting side FOT3 and the light receiving side FOT4 are arranged side by side in the direction perpendicular to the paper surface.
  • the light emitting side FOT 3 and the light receiving side FOT 4 are configured to include an FOT main body 8 and a plurality of lead frames 9 extending from the FOT main body 8.
  • a light emitting element for example, LED
  • a light receiving element for example, PD
  • the lead frame 9 is inserted into the through hole 10 of the circuit board 2 and soldered thereafter, the electrical connection with a predetermined circuit is completed.
  • known ones are used in this embodiment.
  • the connector housing 5 is a resin part having a box shape.
  • the connector fitting portion 11 is formed on the front side, and the FOT accommodating portion 12 is formed on the rear side.
  • the FOT accommodating portion 12 is formed as a portion that accommodates the light emitting side FOT3 and the light receiving side FOT4 side by side.
  • two through holes 13 are formed at a predetermined interval.
  • the two through holes 13 are arranged and formed in accordance with the positions of a light emitting element and a light receiving element (not shown).
  • the two through holes 13 are formed so as to communicate with the connector fitting portion 11.
  • the connector housing 5 is fixed to the circuit board 2 using fixing pins 14 protruding from the lower surface. Specifically, the fixing pin 14 is inserted into the housing fixing hole 15 of the circuit board 2 and fixed.
  • the shield case 6 is a box-shaped metal part, and in this embodiment, the shield case 6 is formed to have a size that can cover the connector housing 5 in a state in which the light emitting side FOT 3 and the light receiving side FOT 4 are accommodated ( The shape may cover only the light emitting side FOT3 and the light receiving side FOT4).
  • a pin-shaped ground portion 16 and a fixing pin 17 are formed at the lower portion of the shield case 6. The ground portion 16 is inserted into the through hole 18 of the circuit board 2 and soldered to a ground (not shown). On the other hand, the fixing pin 17 is inserted into the fixing hole 19 of the circuit board 2 and fixed.
  • the transmission / reception integrated lens 7 is a light-transmitting resin component (one component), which is connected to the light-emitting side light guide member 20, the light-receiving side light guide member 21, and the like. It has a portion 22 and a space 23, and is formed, for example, in the shape shown in the figure (the whole shape shown in the figure is an example).
  • the light emitting side light guide member 20 includes a light guide part 24 and a flange part 25 integrated with the light guide part 24.
  • the light guide unit 24 includes a first cylindrical part 27 that protrudes straight and long from the first surface 26 of the flange part 25, a second cylindrical part 29 that protrudes short from the second surface 28 of the flange part 25, and a first cylindrical part. 27 and the lens 30 formed so as to fill the inside of the second cylindrical portion 29, and is formed in a shape that is substantially cylindrical (substantially columnar).
  • the first tube portion 27 and the second tube portion 29 are formed in an asymmetric shape with the flange portion 25 as a boundary.
  • a long rib 31 having a triangular shape in side view is integrally formed on the outer surface of the first cylindrical portion 27.
  • a short rib 32 having a triangular shape in side view is integrally formed on the outer surface of the second cylindrical portion 29.
  • the long ribs 31 and the short ribs 32 are formed as portions for improving the fluidity of the resin material during resin molding of the transmission / reception integrated lens 7. Since the resin material flows through the long rib 31 and the short rib 32 to the tips of the first cylindrical portion 27 and the second cylindrical portion 29, the molding accuracy can be increased (short shot can be prevented).
  • An adjustment portion 33 is formed integrally with the protruding tip portion of the second cylindrical portion 29.
  • the adjustment unit 33 is formed only on the light-emitting side light guide member 20 (in order to optimize the shape, it is not formed on the light-receiving side light guide member 21).
  • the lens 30 is formed with an aspherical lens (not shown) having an optimum shape for a light emitting element (not shown) and other parts.
  • the lens 30 is formed as a lens exclusively for the light emitting side.
  • the flange portion 25 is formed into a rectangular plate shape.
  • the flange portion 25 is formed with a predetermined thickness.
  • a U-shaped FOT contact portion 34 is integrally formed on the second surface 28 of the flange portion 25 (the shape is an example).
  • the FOT contact portion 34 is formed as a portion in surface contact with the flat portion of the FOT main body 8 in the light emission side FOT 3. By forming the FOT contact portion 34, for example, lens tilt can be prevented during assembly.
  • the light receiving side light guide member 21 has a light guide part 35 and a flange part 36 integrated with the light guide part 35 in the same manner as the light emission side light guide member 20 (the structure is basically the same as that of the light emitting side light guide member 20). But the details are slightly different due to the optimization).
  • the light guide part 35 includes a first cylinder part 38 projecting straight and long from the first surface 37 of the flange part 36, a second cylinder part 40 projecting short from the second surface 39 of the flange part 36, and a first cylinder part. 38 and a lens 41 formed so as to fill the inside of the second cylindrical portion 40, and is formed into a substantially cylindrical shape (substantially columnar shape).
  • the first cylinder part 38 and the second cylinder part 40 are formed in an asymmetric shape with the flange part 36 as a boundary.
  • a long rib 42 having a triangular shape in side view is integrally formed on the outer surface of the first cylindrical portion 38.
  • a short rib 43 having a triangular shape in a side view is integrally formed on the outer surface of the second cylindrical portion 40.
  • the long ribs 42 and the short ribs 43 are formed as portions for improving the fluidity of the resin material at the time of resin molding of the transmission / reception integrated lens 7, similarly to the long ribs 31 and the short ribs 32.
  • the second cylinder part 40 is formed slightly shorter than the second cylinder part 29 of the light emitting side light guide member 20.
  • the lens 41 is formed with an aspherical lens (not shown) having an optimum shape for a light receiving element (not shown) and other parts.
  • the lens 41 is formed as a lens exclusively for the light receiving side.
  • the flange portion 36 is formed into a rectangular plate shape.
  • the flange portion 36 is formed with a predetermined thickness.
  • a U-shaped FOT contact portion 44 is integrally formed on the second surface 39 of the flange portion 36 (the shape is an example).
  • the FOT contact portion 44 is formed as a portion in surface contact with the flat portion of the FOT main body 8 in the light receiving side FOT4. By forming the FOT contact portion 44, for example, lens tilt can be prevented during assembly.
  • the FOT contact portion 44 is formed to be flush with the FOT contact portion 34.
  • the flange portion 36 is arranged at a position aligned with the flange portion 25 of the light emitting side light guide member 20 with the space 23 interposed.
  • the connecting portion 22 is formed as a portion connecting the light emitting side light guide member 20 and the light receiving side light guide member 21. Specifically, it is formed so as to connect the flange portion 25 and the flange portion 36 by opening the space 23.
  • the arrow P in the figure is the direction in which the light emitting side light guide member 20 and the light receiving side light guide member 21 are arranged
  • the arrow Q is the accommodation direction of the light emitting side light guide member 20 and the light receiving side light guide member 21 with respect to the connector housing 5
  • the connecting portion 22 is disposed so as to be positioned on one end side in the direction of the arrow R.
  • the connecting portion 22 is formed in a shape having elasticity. Specifically, it is formed in a bridge shape (substantially U-shaped) that protrudes outward from one side 45 of the flange 25 and one side 46 of the flange 36. Further, the connecting portion 22 is also formed in a shape that becomes a handle portion 47 that can be held by the operator's hand when assembled to the connector housing 5.
  • the space 23 is formed in a slit shape. Specifically, it is formed in a slit shape such that the other end side in the direction of the arrow R, that is, the opposite side of the formation position of the connecting portion 22 opens.
  • the optical connector 1 includes the transmission / reception integrated lens 7 having the above-described configuration and structure.
  • the transmission / reception integrated lens 7 has the following effects. .
  • the transmission / reception integrated lens 7 includes the light-emitting side light guide member 20 and the light-receiving side light guide member 21, which are connected and integrated by the connecting portion 22, and thus can be used as one large component. it can. According to the present invention, even if the light-emitting side light guide member 20 itself and the light-receiving side light guide member 21 itself are small, they can be used as one large component if they are integrated at the connecting portion 22. Therefore, there is an effect that the workability related to the assembly to the connector housing 5 can be improved.
  • the transmission / reception integrated lens 7 becomes one component by the above integration, even if the light-emitting side FOT3 lens 30 is formed on one side and the light-receiving side FOT4 lens 41 is formed on the other side, these The connector housing 5 can be assembled without being distinguished from each other and without being erroneously inserted. Therefore, there is an effect that workability can be improved.
  • the transmission / reception integrated lens 7 becomes a single component due to the above integration, the light emitting side FOT3 lens 30 can be formed on one side and the light receiving side FOT4 lens 41 can be formed on the other side. Therefore, there is an effect that the shape of the optical component can be optimized.
  • the transmission / reception integrated lens 7 is formed in a bridge shape in which the connecting portion 22 has elasticity, and the space 23 between the light emitting side light guide member 20 and the light receiving side light guide member 21 is slit. Since it is formed in a shape, even if the pitch P1 between the light-emitting side light guide member 20 and the light-receiving side light guide member 21 does not exactly match the pitch P2 of the assembly portion 48 of the connector housing 5, it absorbs by bending. be able to. Therefore, the transmission / reception integrated lens 7 can be reliably assembled to the connector housing 5, and the workability can be improved.
  • a light emitting side FOT (Fiber Optic Transceiver 3) having a light emitting element; A light receiving side FOT (4) having a light receiving element; A connector housing (5) having a FOT accommodating portion (12) for accommodating the light emitting side FOT and the light receiving side FOT side by side; A transmission / reception integrated lens (light guide member 7) assembled to the connector housing in accordance with the positions of the light emitting side FOT and the light receiving side FOT;
  • the light guide member includes a light emission side light guide member (20) on which the light emission side FOT lens is formed, a light reception side light guide member (21) on which the light reception side FOT lens is formed, and the light emission.
  • the optical connector which has a connection part (22) connected so that a side light guide member and the said light reception side light guide member may be integrated.
  • the light guide member is connected and integrated by the bridge-shaped connecting part having elasticity in a state where the light emitting side light guide member and the light receiving side light guide member have a space (23),
  • the connecting portion is disposed so as to be positioned on one end side in a direction orthogonal to the alignment direction and the accommodation direction of the light emitting side light guide member and the light receiving side light guide member,
  • the connecting portion, the light-emitting side light guide member, and the light-receiving side light guide member are arranged so that the space is formed in a slit shape that opens at the other end side opposite to the one end.
  • the said connection part is formed as a handle part (47).
  • the optical connector characterized by the above-mentioned.
  • the workability can be improved and the shape can be optimized.
  • the present invention that exhibits this effect relates to an optical connector used in the field of optical communication, and in particular, is useful in the field related to an optical connector in which a light guide member is disposed between a FOT (Fiber-Optic-Transceiver) and a counterpart.
  • FOT Fiber-Optic-Transceiver

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
PCT/JP2014/061851 2013-05-13 2014-04-28 光コネクタ WO2014185260A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112014002387.6T DE112014002387B4 (de) 2013-05-13 2014-04-28 Optischer Steckverbinder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-100850 2013-05-13
JP2013100850A JP6354102B2 (ja) 2013-05-13 2013-05-13 光コネクタ

Publications (1)

Publication Number Publication Date
WO2014185260A1 true WO2014185260A1 (ja) 2014-11-20

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JP (1) JP6354102B2 (de)
DE (1) DE112014002387B4 (de)
WO (1) WO2014185260A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019184744A (ja) 2018-04-05 2019-10-24 矢崎総業株式会社 光コネクタ
JP2019184745A (ja) 2018-04-05 2019-10-24 矢崎総業株式会社 光コネクタ
US20190312172A1 (en) 2018-04-05 2019-10-10 Yazaki Corporation Optical connector
JP2020027140A (ja) * 2018-08-09 2020-02-20 矢崎総業株式会社 光コネクタ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006078644A (ja) * 2004-09-08 2006-03-23 Hosiden Corp スリーブの取り付け構造
JP2006154788A (ja) * 2004-11-04 2006-06-15 Hosiden Corp 光通信コネクタ用光学結合部材及びこれを用いた光コネクタ
JP2007171463A (ja) * 2005-12-21 2007-07-05 Hosiden Corp 双方向光通信用コネクタ
JP2009145715A (ja) * 2007-12-17 2009-07-02 Yazaki Corp フェルール係止構造
JP2010026345A (ja) * 2008-07-23 2010-02-04 Yazaki Corp 光コネクタ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4297279B2 (ja) 2005-02-03 2009-07-15 矢崎総業株式会社 光コネクタ
JP5837398B2 (ja) 2011-11-08 2015-12-24 住友理工株式会社 電磁式アクチュエータとそれを用いた能動型制振器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006078644A (ja) * 2004-09-08 2006-03-23 Hosiden Corp スリーブの取り付け構造
JP2006154788A (ja) * 2004-11-04 2006-06-15 Hosiden Corp 光通信コネクタ用光学結合部材及びこれを用いた光コネクタ
JP2007171463A (ja) * 2005-12-21 2007-07-05 Hosiden Corp 双方向光通信用コネクタ
JP2009145715A (ja) * 2007-12-17 2009-07-02 Yazaki Corp フェルール係止構造
JP2010026345A (ja) * 2008-07-23 2010-02-04 Yazaki Corp 光コネクタ

Also Published As

Publication number Publication date
DE112014002387B4 (de) 2019-10-24
DE112014002387T5 (de) 2016-02-04
JP2014222256A (ja) 2014-11-27
JP6354102B2 (ja) 2018-07-11

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