WO2018025337A1 - 光コネクタプラグ - Google Patents
光コネクタプラグ Download PDFInfo
- Publication number
- WO2018025337A1 WO2018025337A1 PCT/JP2016/072705 JP2016072705W WO2018025337A1 WO 2018025337 A1 WO2018025337 A1 WO 2018025337A1 JP 2016072705 W JP2016072705 W JP 2016072705W WO 2018025337 A1 WO2018025337 A1 WO 2018025337A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical connector
- cable
- housing
- cover member
- front housing
- Prior art date
Links
Images
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
- G02B6/387—Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together
-
- 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
-
- 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
- G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
- G02B6/3888—Protection from over-extension or over-compression
-
- 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
- G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
- G02B6/38875—Protection from bending or twisting
Definitions
- the present invention relates to an optical connector plug.
- Patent Document 1 is an invention relating to an optical fiber connector for inserting a communication cable optically connected to a port of a telecommunication enclosure into the enclosure.
- the optical fiber connector includes a main body having an internal passage extending from one end to the other end and a compression portion provided at the one end, a compression member attachable to one end of the main body so as to cover the compression portion, At least a part of the optical connection portion is disposed in the internal passage, and an external housing is disposed so as to cover the optical connection portion and functions as, for example, an SC connector.
- An optical connector plug includes: An optical connector containing an optical fiber exposed from the cable; A cover member that accommodates the optical connector and from which the cable is pulled out from a rear end thereof, and an optical connector plug comprising: A latch structure for detachably attaching the optical connector to the cover member is provided inside the cover member.
- FIG. 1 It is a perspective view which shows an example of the optical connector plug which concerns on this embodiment. It is a perspective view which shows the state which removed the rear housing and the boot from the optical connector plug shown in FIG. It is a perspective view which shows the state which pulled out the optical connector from the state of FIG. It is a disassembled perspective view of the optical connector plug of FIG. It is a perspective view of the optical connector which comprises an optical connector plug. It is a perspective view of the front housing which comprises an optical connector plug. It is sectional drawing explaining an example of the latch part provided in the front housing. It is sectional drawing explaining an example of the latch part provided in the front housing. It is sectional drawing explaining an example of the latch part provided in the front housing. It is sectional drawing explaining another example of a latch part.
- FIG. 23 is a perspective view showing a state where an optical connector is assembled to the front housing of FIG. 22. It is sectional drawing explaining the optical connector plug in the state of FIG.
- FIG. 25 is a cross-sectional view illustrating a state in which the optical connector is inserted into the front housing upside down from FIG. 24.
- an object of the present disclosure is to provide an optical connector plug that can improve on-site assembly workability.
- An optical connector plug includes: (1) an optical connector containing an optical fiber exposed from a cable; A cover member that accommodates the optical connector and from which the cable is pulled out from a rear end thereof, and an optical connector plug comprising: A latch structure for detachably attaching the optical connector to the cover member is provided inside the cover member. According to this configuration, on-site assembly workability can be improved by temporarily fixing the optical connector to the cover member.
- the latch structure may have at least one claw portion protruding from the inner surface of the cover member. According to this configuration, the optical connector can be easily temporarily fixed.
- the cable may be fixed to the cover member by the cable gripping member coming into contact with the inner surface of the cover member. According to this configuration, the gripping strength of the cable can be increased, and even when a strong tensile force is applied to the cable, the arrangement of the optical connector in the cover member is not adversely affected.
- the cover member includes a front housing that houses the optical connector, and a rear housing connected to a rear end of the front housing,
- the cable gripping member may grip the cable by connecting the front housing and the rear housing.
- the cable gripping member has a pair of arm portions,
- the inner surface of the rear housing has a shape that narrows toward the rear end,
- the arm portion may be narrowed by the inner surface of the rear housing in a state where the rear housing is fitted to the front housing. According to this configuration, the cable can be securely fixed by a simple method of fitting the rear housing to the front housing.
- a connector receiving portion having a shape corresponding to the shape of the front end portion of the optical connector may be formed inside the cover member. According to this configuration, the optical connector can be accommodated in the cover member in an appropriate direction.
- a cap member that can be attached to the cover member and protects a front end portion of the optical connector;
- a connector receiving portion having a shape corresponding to the shape of the front end portion of the optical connector may be formed inside the cap member. According to this configuration, the optical connector can be accommodated in the cover member in an appropriate direction by allowing the optical connector to engage with the cap only in one determined direction.
- the waterproof member may be compressed when the optical connector is assembled to the cover member. According to this structure, the waterproofness and dustproofness of the said cover member can be ensured by compressing the waterproofing member arrange
- the cover member includes a front housing that houses the optical connector, a rear housing connected to the rear end of the front housing, and a boot connected to the rear end of the rear housing, A plurality of arm members projecting toward the boot side are formed at the rear end of the rear housing, The waterproof member is compressed by the plurality of arm members by fitting the rear housing and the boot in a state where the waterproof member is disposed between the plurality of arm members and the cable. May be. According to this configuration, the waterproof property can be ensured by a simple method of fitting the boot to the rear end of the rear housing.
- the waterproofing member is composed of a resin member provided with a penetrating portion through which the cable is inserted, The penetration portion may have a protrusion corresponding to the notch portion of the cable. According to this structure, waterproofness and dustproofness can be ensured more reliably.
- An attachment member for attaching the optical connector to the cover member may be disposed at a rear end of the optical connector. According to this configuration, the cover member or the like can be shared by using attachment members having different structures according to optical connectors of various shapes that are generally spread, and work efficiency can be improved. In addition, the production cost of the optical connector plug can be reduced.
- the optical connector plug 1 includes an optical connector 2 and a cover member 3 (3A, 3B, 3C) in which the optical connector 2 is accommodated.
- the cover member 3 includes a front housing 3A, a rear housing 3B, and a boot 3C.
- the optical connector 2 is accommodated in the front housing 3A of the cover member 3.
- the optical connector 2 is configured to be inserted into the front housing 3A from the rear side of the front housing 3A.
- the rear housing 3B is detachably connected to the rear end of the front housing 3A by, for example, screw fitting.
- a boot 3C is detachably connected to the rear end of the rear housing 3B by, for example, screw fitting.
- the cable C connected to the optical connector 2 is inserted into the rear housing 3B and the boot 3C, and is drawn out from the rear end of the boot 3C.
- the cable C is protected from sudden bending by being covered with the boot 3C.
- the optical connector plug 1 includes a cable gripping member 4 and a waterproofing member 5.
- the cable gripping member 4 is disposed behind the optical connector 2 in the longitudinal direction (front-rear direction) of the optical connector plug 1.
- the cable gripping member 4 is formed in a cylindrical shape, and the cable C connected to the optical connector 2 is inserted therethrough.
- the cable gripping member 4 is accommodated in the front housing 3A and the rear housing 3B.
- the waterproofing member 5 is disposed between the rear housing 3B and the boot 3C in the longitudinal direction of the optical connector plug 1. A cable C connected to the optical connector 2 is inserted into the waterproofing member 5. The waterproofing member 5 is accommodated in the rear housing 3B and the boot 3C.
- the optical connector 2 includes a ferrule 21 to which the tip of the optical fiber is attached, and a connector housing 22 that holds the ferrule 21.
- the optical connector 2 is, for example, an SC connector to which the cable C is assembled.
- the cable C includes an optical fiber core, a tensile fiber that covers the optical fiber, and a jacket that covers the tensile fiber.
- the optical fiber core has a core and a clad, for example, an optical fiber having a diameter of 125 ⁇ m and is coated with an ultraviolet curable resin and has an outer diameter of, for example, 250 ⁇ m. It is coated to a diameter of 900 ⁇ m.
- the cable C may be single-core or multi-core, and may be a flat cable or a round cable.
- the optical connector 2 can be attached to an adapter built in a receptacle (not shown).
- the ferrule 21 is held by the connector housing 22 so that the front end portion protrudes from the front end surface of the connector housing 22.
- the ferrule 21 is provided with an insertion hole along the longitudinal direction of the ferrule 21 at the center in the circumferential direction. The optical fiber drawn out from the cable C and exposed is inserted into the insertion hole.
- the connector housing 22 is a hollow member and holds the ferrule 21 therein.
- a flange 23 is provided on the outer periphery of the central portion of the connector housing 22 in the longitudinal direction (front-rear direction).
- the side opposite to the side from which the ferrule 21 projects is defined as a rear end portion 24.
- the front housing 3A includes a housing portion 31 and a fitting portion 34 into which the rear housing 3B is fitted.
- the front housing 3A is formed of a resin member, for example.
- the accommodating portion 31 is formed in a substantially cylindrical shape, and the optical connector 2 is accommodated therein with the front end protruding forward from the accommodating portion 31 (see FIG. 2 and FIG. 3 for comparison).
- a latch portion 36 (an example of a latch structure) that allows the optical connector 2 to be attached to and detached from the front housing 3A is formed integrally with the front housing 3A.
- the latch portion 36 includes a base portion 36A, an arm portion 36B, and a claw portion 36C.
- the base portion 36A is provided so as to protrude from the inner surface of the front housing 3A.
- the arm portion 36B extends substantially parallel to the inner surface of the front housing 3A from the tip of the base portion 36A toward the rear of the front housing 3A. That is, the arm portion 36B is provided away from the inner surface of the front housing 3A by the height of the base portion 36A.
- the claw portion 36C is provided at the front end portion of the arm portion 36B so as to face the front housing 3A. At least one latch portion 36 is provided along the inner peripheral surface.
- the claw portion 36C When the optical connector 2 is inserted into the front housing 3A, as shown in FIG. 8, the claw portion 36C is pushed against the side surface of the connector housing 22 of the optical connector 2, and the elastic arm portion 36B is the inner surface of the front housing 3A. Bend in the direction.
- the claw portion 36C engages with the rear end portion 24 of the connector housing 22, and the optical connector 2 is temporarily fixed by the claw portion 36C.
- the arm portion 36B is bent in the same manner as described above, the claw portion 36C is detached from the rear end portion 24 of the connector housing 22, and the optical connector 2 is moved to the front. It is removed from the housing 3A.
- the latch portion 36 may have a configuration in which, for example, a thin plate-like claw portion 36D protrudes inward from the inner surface of the front housing 3A.
- the claw portion 36D when the optical connector 2 is inserted into the front housing 3A, the claw portion 36D returns to the original state after bending toward the front side of the front housing 3A and engages with the rear end portion 24 of the connector housing 22.
- the optical connector 2 is temporarily fixed.
- the claw portion 36D is bent toward the rear side of the front housing 3A and is detached from the rear end portion 24, and the optical connector 2 is detached from the front housing 3A.
- At least one claw portion 36D may be provided along the inner peripheral surface, for example, may be provided over the entire circumference.
- the cable gripping member 4 includes a cylindrical body 41 and a pair of arms 42A and 42B extending rearward from the rear end of the body 41.
- the cable gripping member 4 is a resin member. Is formed.
- the body portion 41 is provided with a flange 43 on the outer periphery and at least one notch 44 at the front end.
- the arm portions 42A and 42B are disposed so as to face each other with a gap through which the cable C can be inserted, and a plurality of gripping teeth 45 are formed on each facing surface.
- the cable gripping member 4 grips the inserted cable C by the arm portions 42A and 42B by narrowing the gap between the arm portions 42A and 42B.
- the rear housing 3B accommodates the first fitting portion 37 fitted to the front housing 3A, the second fitting portion 38 fitted to the boot 3C, and the waterproof member 5.
- a compression unit 39 is provided at the rear end of the rear housing 3B, and has a plurality of arm members 39A that protrude toward the boot 3C (rear).
- the plurality of arm members 39A are arranged so as to form a space that can accommodate the waterproofing member 5 with a slight gap between the adjacent arm members 39A.
- the plurality of arm members 39A are arranged so as to form a rectangular space, and when the outer shape of the waterproof member 5 is circular, a circular space is formed. To be arranged.
- the waterproofing member 5 is formed of a resin member, for example. As shown in FIG. 13A, the waterproofing member 5 is formed in, for example, a rectangular shape and includes a through portion 51 through which the cable C is inserted. The penetrating part 51 is provided with a protruding part 52. The protrusion 52 is provided so as to correspond to the position and shape of the notch 54 formed in the inserted cable C (see FIG. 13B). A cutout 53 is formed at a location corresponding to the protrusion 52 on the outer surface of the waterproofing member 5.
- the waterproofing member 5 of this example a rectangular penetrating portion 51 corresponding to the flat cable C is formed, and the V-shaped two protruding portions 52 are formed on the side surface of the penetrating portion 51.
- the shape of the cable C used is not limited to a flat cable, For example, a round cable may be sufficient.
- the waterproof member 5 of the present example has a rectangular outer shape, but is not limited thereto, and may be formed in a circular shape, for example.
- the notch part 53 does not need to be formed.
- a protrusion 31A protruding from the inner surface is formed in the front housing 3A.
- the optical connector 2 housed in the front housing 3A is fixed at the front position in the front housing 3A by the flange 23 of the connector housing 22 coming into contact with the protruding portion 31A.
- the rear position of the optical connector 2 is temporarily fixed by engaging the claw portion 36 ⁇ / b> C of the latch portion 36 with the rear end portion 24 of the optical connector 2.
- the claw portion 36 ⁇ / b> C is engaged with the rear end portion 24 of the optical connector 2 in a state where the claw portion 36 ⁇ / b> C enters the notch 44 provided in the trunk portion 41 of the cable gripping member 4.
- the front end surface of the body 41 of the cable gripping member 4 accommodated in the front housing 3A is in contact with the rear end 24 of the optical connector 2 so that the front position in the front housing 3A is fixed. Further, the cable gripping member 4 is fixed in the radial position in the front housing 3A by the flange 43 of the body portion 41 being in contact with the inner surface of the front housing 3A. In addition, when the front end surface of the trunk portion 41 of the cable gripping member 4 contacts the rear end portion 24 of the optical connector 2, the position in the rear direction of the optical connector 2 is also fixed.
- a cylindrical gripping portion 37 ⁇ / b> A is provided facing forward similarly to the first fitting portion 37.
- the inner surface of the gripping portion 37A has a shape that narrows toward the rear end. That is, the inner diameter of the gripping portion 37A is formed so that the diameter becomes smaller toward the rear end.
- the arm portions 42A and 42B are greatly narrowed by the inner surface of the gripping portion 37A as they are fitted deeper.
- the cable C inserted into the cable gripping member 4 is gripped by the gripping teeth 45 of the arm portions 42A and 42B and fixed to the cover member 3.
- an O-ring L is accommodated in the groove formed by the inner surface of the first fitting portion 37 and the gripping portion 37A, and when the rear housing 3B is fitted to the front housing 3A, the front housing 3A When the fitting portion 34 and the O-ring L are in contact with each other, waterproofness at the fitting portion between the front housing 3A and the rear housing 3B is ensured.
- the waterproof member 5 through which the cable C is inserted is accommodated in the compression portion 39 of the rear housing 3B. That is, the waterproof member 5 is disposed between the compression portion 39 and the cable C in the radial direction of the cover member 3.
- the compression portion 39 is compressed by the boot 3C.
- the waterproofing member 5 accommodated in the compression part 39 is compressed by the plurality of arm members 39 ⁇ / b> A constituting the compression part 39.
- the optical connector plug 1 can be used in common for the optical connectors 2 having different lengths. Therefore, when the length of the optical connector 2 in the front-rear direction is shorter than a predetermined length, a spacer (an example of an attachment member) for unifying the length may be provided. For example, in FIG. 4, the spacer is disposed at the rear end of the optical connector 2. When the spacer is disposed, the rear position of the optical connector 2 is indirectly temporarily fixed by engaging the claw portion 36C with the rear end portion of the spacer in the accommodated front housing 3A.
- the optical connector plug may include a cap member 6.
- the cap member 6 is detachably provided at the front end portion of the front housing 3A.
- the cap member 6 has a function of guiding the insertion direction of the optical connector 2 inserted into the front housing 3A, and a function of protecting the front end portion of the optical connector 2 protruding from the front housing 3A.
- the cap member 6 includes a first cap portion 61 and a second cap portion 62 provided so as to protrude forward from the front end of the first cap portion 61.
- the first cap portion 61 is attached to the front end portion of the front housing 3A.
- the 2nd cap part 62 is attached to the front-end part of the optical connector 2 protruded ahead rather than the accommodating part 31 of 3 A of front housings.
- a connector receiving portion 63 having a shape corresponding to the shape of the front end portion of the optical connector 2 is formed inside the second cap portion 62, and as shown in FIG.
- notches 64 and 65 having a shape corresponding to the shape of the accommodating portion 31 of the front housing 3 ⁇ / b> A are formed inside the first cap portion 61.
- the attachment direction of the cap member 6 attached to the front housing 3A is defined.
- the connector receiving portion 63 the mounting direction of the optical connector 2 to be mounted to the cap member 6 is defined. Thereby, the insertion direction of the optical connector 2 inserted with respect to 3 A of front housings is prescribed
- FIG. 17 and 18 show a coupling member 70 through which the front housing 3A is inserted.
- the coupling member 70 can be rotated and slid around the front housing 3A, and can be coupled to an optical connector receptacle (not shown) to which an optical connector plug is connected.
- the optical connector 2 inserted into the front housing 3A is temporarily attached to the front housing 3A by the latch portion 36 before the rear housing 3B is fitted to the front housing 3A. Can be fixed. For this reason, it is possible to prevent the optical connector 2 from easily falling off from the front housing 3A during the assembling work, so that the assembling workability at the site can be improved.
- the cable C connected to the optical connector 2 can be gripped by the cable gripping member 4 and fixed to the cover member 3. For this reason, even when a strong tensile force is applied to the cable C, the cable C can be prevented from coming off from the optical connector 2. Moreover, since it is possible to suppress the influence of the tensile force on the optical connector 2, it is possible to prevent the positional shift of the optical connector 2 in the cover member 3. As a result, the assembly workability can be improved, and the fitting accuracy between the optical connector plug 1 and the receptacle can be improved.
- the rear housing 3B is fitted into the front housing 3A so that the rearward position of the optical connector 2 is set to the cable. It can be fixed by the gripping member 4. For this reason, the positional displacement of the optical connector 2 in the cover member 3 can be prevented as described above, and the fitting accuracy between the optical connector plug 1 and the receptacle can be improved.
- the arm portion 42A of the cable gripping member 4 can be easily connected by fitting the rear housing 3B to the front housing 3A. 42B can be narrowed and the cable C can be securely fixed.
- the waterproof member 5 disposed between the rear housing 3B and the cable C can be compressed by a simple method of fitting the boot 3C to the rear end of the rear housing 3B. Property and dustproofness can be ensured. Further, by forming the protrusion 52 corresponding to the notch of the cable C in the through-hole 51 through which the cable C is inserted, the gap between the cable C and the waterproofing member 5 can be further reduced. And dust proofing can be ensured more reliably.
- a connector receiving portion 63 having a shape corresponding to the front end portion of the optical connector 2 is formed in the second cap portion 62 of the cap member 6. For this reason, the optical connector 2 can be engaged with the cap member 6 attached to the front housing 3A only in one determined direction. Moreover, since the notches 64 and 65 of the shape corresponding to the accommodating part 31 of the front housing 3A are formed in the first cap part 61, the cap member 6 is determined only in one direction with respect to the front housing 3A. Engagement is possible. Therefore, the optical connector 2 can be reliably accommodated in an appropriate direction with respect to the cover member 3 during assembly.
- the length of the optical connector 2 can be made uniform by arranging a spacer between the optical connector 2 and the cable gripping member 4, the cable gripping member can be formed without leaving a gap between the optical connector 2 and the optical connector 2. 4 can be arranged at a predetermined position. Thereby, the cable C can be reliably fixed by the cable gripping member 4. Further, by using spacers having different structures according to optical connectors 2 of various shapes that are commonly used, the cover member 3 and the like can be shared, work efficiency can be improved, The production cost of the optical connector plug 1 can be reduced.
- the cover member 103 includes a front housing 103A and a rear housing 103B.
- symbol as the optical connector plug 1 of the said embodiment is a part which has the same function, description is abbreviate
- the front housing 103A also has a function of a cable gripping member, and the cable gripping portion 104 is integrally provided at the rear end of the fitting portion.
- the cable gripping portion 104 includes a plurality of arm members 104A that protrude to the rear housing 103B side (rear side).
- the plurality of arm members 104A are arranged so as to form a space that can accommodate the waterproofing member 5 with a slight gap between adjacent arm members 104A.
- the rear housing 103B is detachably connected to the rear end of the front housing 103A by, for example, screw fitting.
- the rear housing 103B also has a boot function, and a boot portion 113 is integrally provided at the rear end of the fitting portion 137.
- An O-ring L is provided behind the fitting portion 137 on the inner surface of the rear housing 103B.
- the arm member 104A of the cable gripping portion 104 is moved by the inner surface of the rear housing 103B. Compressed. Accordingly, the waterproof member 5 accommodated in the cable gripping portion 104 is gripped by the plurality of arm members 104A, and the cable C inserted through the waterproof member 5 is compressed by the waterproof member 5, and the cable C is fixed to the front housing 103A.
- the O-ring L provided on the inner surface of the rear housing 103B ensures waterproofness between the front housing 103A and the rear housing 103B, and the boot portion 113 by the waterproof member 5 compressed by the arm member 104A. It is possible to ensure waterproofness against water or the like entering from the rear end side.
- FIG. 22 shows a front housing 203A and an optical connector 2 that constitute an optical connector plug according to Modification 2.
- the front housing 203A includes a housing portion 231 and a fitting portion 234 into which a rear housing (see FIG. 12) is fitted.
- the optical connector 2 has the same function as that of the above embodiment, and thus the description thereof is omitted.
- the front housing 203A includes a stopper 250 that protrudes inward from the inner surface of the front housing 203A on the front side of the latch portion 236.
- the stopper 250 includes a claw portion 251 bent in an L shape.
- a latch portion 236 that allows the optical connector 2 to be attached to and detached from the front housing 203A is formed integrally with the front housing 3A in the front housing 203A, as in the above embodiment. Therefore, the optical connector 2 is appropriately positioned and fixed by engaging the latch portion 236 and the claw portion 251 of the stopper 250 so that the front end portion of the optical connector 2 protrudes from the accommodating portion 231 of the front housing 203A.
- the assembly direction of the optical connector 2 with respect to the front housing 203A can be regulated. Therefore, by adopting this modification, the optical connector 2 can be reliably accommodated in an appropriate direction in the front housing 203A without using the structure of the cap 6 of the above embodiment.
- Optical connector plug 2 Optical connector 3: Cover member 3A: Front housing 3B: Rear housing 3C: Boot 4: Cable gripping member 5: Waterproof member 36: Latch portion 36 (an example of a latch structure) 36C, 36D: claw portion 37A: gripping portion 39: compression portion 39A: arm members 42A, 42B: arm portion 43: flange 51: penetration portion 52: projection portion 54: notch portion 63: connector receiving portion C: cable
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
特許文献1は、電気通信エンクロージャのポートに光接続される通信ケーブルを当該エンクロージャに挿入するための光ファイバコネクタに関する発明である。その光ファイバコネクタは、一端から他端まで延びる内部通路とその一端に設けられた圧縮部とを有する本体部と、前記圧縮部を覆うように前記本体部の一端に取り付け可能な圧縮部材と、その少なくとも一部分が内部通路内に配置される光接続部と、光接続部を覆うように配置されて例えばSCコネクタとして機能する外部ハウジングと、を備えている。
ケーブルから露出された光ファイバを内蔵する光コネクタと、
前記光コネクタが収容されるとともにその後端から前記ケーブルが引き出されるカバー部材と、を備えた光コネクタプラグであって、
前記カバー部材の内部には、前記光コネクタを前記カバー部材に着脱自在に取り付けるためのラッチ構造が設けられている。
特許文献1のような光ファイバコネクタを、現地で組み立てる場合には、ケーブルが接続された光接続部を本体部の内部通路に挿通した状態で、本体部と圧縮部材との嵌合や光接続部と外側ハウジングとの嵌合が行われる。その際に、本体部がケーブルから抜け出てしまう可能性があり、現地組み立ての作業性には改善の余地がある。
本開示によれば、現地での組み付け作業性を向上できる光コネクタプラグを提供することができる。
最初に本開示の実施態様を列記して説明する。
本開示の一態様に係る光コネクタプラグは、
(1)ケーブルから露出された光ファイバを内蔵する光コネクタと、
前記光コネクタが収容されるとともにその後端から前記ケーブルが引き出されるカバー部材と、を備えた光コネクタプラグであって、
前記カバー部材の内部には、前記光コネクタを前記カバー部材に着脱自在に取り付けるためのラッチ構造が設けられている。
この構成によれば、光コネクタをカバー部材に仮固定することで、現地での組み付け作業性を向上させることができる。
この構成によれば、光コネクタを容易に仮固定することができる。
前記ケーブル把持部材が前記カバー部材の内面に当接することで前記ケーブルが前記カバー部材に対して固定されていても良い。
この構成によれば、ケーブルの把持強度を高めることができ、ケーブルに対して強い引張力が加えられた場合でもカバー部材内での光コネクタの配置に悪影響を与えることがない。
前記フロントハウジングと前記リアハウジングとを接続することで前記ケーブル把持部材が前記ケーブルを把持しても良い。
これにより、簡便な構成で、ケーブルを確実に把持することができる。
前記リアハウジングの内面は、後端に向かうにつれて狭窄する形状を有し、
前記フロントハウジングに前記リアハウジングを嵌合させた状態で前記リアハウジングの前記内面によって前記アーム部が狭窄されていても良い。
この構成によれば、フロントハウジングにリアハウジングを嵌合させるという簡便な方法で、ケーブルを確実に固定することができる。
この構成によれば、前記カバー部材へ前記光コネクタを適切な方向で収容させることができる。
前記キャップ部材の内部には、前記光コネクタの前記前端部の形状に対応する形状のコネクタ受け部が形成されていても良い。
この構成によれば、前記キャップに対して前記光コネクタが決められた一方向のみ係合可能とすることで、前記カバー部材へ前記光コネクタを適切な方向で収容させることができる。
前記カバー部材に対する前記光コネクタの組み付け時に、前記防水用部材が圧縮されていても良い。
この構成によれば、前記カバー部材と前記ケーブルとの間に配置された防水用部材を圧縮することで前記カバー部材の防水性や防塵性を担保することができる。
前記リアハウジングの後端には、前記ブーツ側へ突出する複数のアーム部材が形成され、
前記防水用部材が前記複数のアーム部材と前記ケーブルとの間に配置された状態で、前記リアハウジングと前記ブーツとが嵌合されることで、前記防水用部材が前記複数のアーム部材により圧縮されていても良い。
この構成によれば、リアハウジングの後端にブーツを嵌合させるという簡便な方法で、防水性を確保することができる。
前記貫通部は、前記ケーブルのノッチ部に対応する突起部を有していても良い。
この構成によれば、防水性や防塵性をより確実に担保することができる。
この構成によれば、一般的に普及している様々な形状の光コネクタに応じて異なる構造の取付部材を用いることで、カバー部材等を共通化することができ、作業効率を向上させることができるとともに、光コネクタプラグの生産コストを削減することができる。
本開示の実施形態に係る光コネクタプラグの具体例を、以下に図面を参照しつつ説明する。
なお、本開示はこれらの例示に限定されるものではなく、請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。
ケーブル把持部材4は、光コネクタプラグ1の長手方向(前後方向)において、光コネクタ2の後方に配置されている。ケーブル把持部材4は、筒状に形成されており、光コネクタ2に接続されたケーブルCが挿通される。ケーブル把持部材4は、フロントハウジング3A内およびリアハウジング3B内に収容される。
収容部31は、略円筒状に形成されており、その内部には光コネクタ2が前端部を収容部31から前方へ突出させて(図2と図3とを比較参照)収容されている。
胴部41は、外周にフランジ43が設けられ、前端部に少なくとも1つの切り欠き44が設けられている。アーム部42Aと42Bとは、ケーブルCが挿通可能な隙間を空けて互いに対向するように配置され、対向する各々の面には複数の把持歯45が形成されている。ケーブル把持部材4は、アーム部42A,42B間の隙間を狭めることにより、挿通されたケーブルCをアーム部42A,42Bによって把持する。
圧縮部39は、リアハウジング3Bの後端に設けられており、ブーツ3C側(後方)へ突出する複数のアーム部材39Aを有している。複数のアーム部材39Aは、隣り合うアーム部材39A間にわずかな隙間を空け、防水用部材5を収容可能な空間を形成するように配置されている。例えば防水用部材5の外形が矩形状の場合、複数のアーム部材39Aは、矩形状の空間を形成するように配置され、防水用部材5の外形が円形状の場合、円形状の空間を形成するように配置される。
貫通部51には、突起部52が設けられている。突起部52は、挿通されるケーブルC(図13(b)参照)に形成されているノッチ部54の位置と形状に対応するように設けられている。防水用部材5の外面において突起部52に対応する箇所には切欠部53が形成されている。本例の防水用部材5では、平型のケーブルCに対応する矩形状の貫通部51が形成され、貫通部51には側面にV字型の2つの突起部52が形成されている。
なお、用いられるケーブルCの形状は、平型のケーブルに限定されず、例えば丸型のケーブルであっても良い。また、本例の防水用部材5は、その外形が矩形状に形成されているが、これに限定されず、例えば円形状に形成されていても良い。また、切欠部53が形成されていなくても良い。
したがって、現地での組み立て作業性および生産コストを考慮すると、長さが相違する光コネクタ2に対しても上記光コネクタプラグ1を共通して使用できることが望ましい。
そこで、光コネクタ2の前後方向の長さが所定の長さより短い場合には、その長さを統一させるためのスペーサ(取付部材の一例)を設けるようにしても良い。スペーサは、例えば図4において、光コネクタ2の後端に配置される。スペーサが配置された場合、光コネクタ2は、収容されたフロントハウジング3A内において、爪部36Cがスペーサの後端部に係合することで後方向の位置が間接的に仮固定される。
キャップ部材6は、フロントハウジング3Aの前端部に着脱可能に設けられている。キャップ部材6は、フロントハウジング3A内に挿入される光コネクタ2の挿入方向を誘導する機能を有するとともに、フロントハウジング3Aから突出されている光コネクタ2の前端部を保護する機能を有する。
図19に示すように、変形例1の光コネクタプラグ100は、カバー部材103がフロントハウジング103Aと、リアハウジング103Bとで構成されている。なお、上記実施形態の光コネクタプラグ1と同じ符号を付した部分は、同様の機能を有する部分であるため説明は省略する。
また、リアハウジング103Bの内面に設けられたOリングLにより、フロントハウジング103Aとリアハウジング103Bとの間の防水性が確保されるとともに、アーム部材104Aで圧縮された防水用部材5によりブーツ部113後端側から侵入してくる水等に対しても防水性を確保することができる。
図22に、変形例2に係る光コネクタプラグを構成するフロントハウジング203Aと、光コネクタ2とを示す。フロントハウジング203Aは、収容部231と、リアハウジング(図12参照)が嵌合される嵌合部234とを備えている。なお、光コネクタ2は、上記の実施形態と同様の機能を有するため、説明は省略する。
2:光コネクタ
3:カバー部材
3A:フロントハウジング
3B:リアハウジング
3C:ブーツ
4:ケーブル把持部材
5:防水用部材
36:ラッチ部36(ラッチ構造の一例)
36C,36D:爪部
37A:把持部
39:圧縮部
39A:アーム部材
42A,42B:アーム部
43:フランジ
51:貫通部
52:突起部
54:ノッチ部
63:コネクタ受け部
C:ケーブル
Claims (11)
- ケーブルから露出された光ファイバを内蔵する光コネクタと、
前記光コネクタが収容されるとともにその後端から前記ケーブルが引き出されるカバー部材と、を備えた光コネクタプラグであって、
前記カバー部材の内部には、前記光コネクタを前記カバー部材に着脱自在に取り付けるためのラッチ構造が設けられている、光コネクタプラグ。 - 前記ラッチ構造は、前記カバー部材の内面から突出する少なくとも一つの爪部を有している、請求項1に記載の光コネクタプラグ。
- 前記ケーブルに挿通されて前記光コネクタの後方に配置されるケーブル把持部材をさらに備え、
前記ケーブル把持部材が前記カバー部材の内面に当接することで前記ケーブルが前記カバー部材に対して固定される、請求項1または請求項2に記載の光コネクタプラグ。 - 前記カバー部材は、前記光コネクタを収容するフロントハウジングと、前記フロントハウジングの後端に接続されるリアハウジングとを含み、
前記フロントハウジングと前記リアハウジングとを接続することで前記ケーブル把持部材が前記ケーブルを把持する、請求項3に記載の光コネクタプラグ。 - 前記ケーブル把持部材は、一対のアーム部を有し、
前記リアハウジングの内面は、後端に向かうにつれて狭窄する形状を有し、
前記フロントハウジングに前記リアハウジングを嵌合させた状態で前記リアハウジングの前記内面によって前記アーム部が狭窄されている、請求項4に記載の光コネクタプラグ。 - 前記カバー部材の内部には、前記光コネクタの前記前端部の形状に対応する形状のコネクタ受け部が形成されている、請求項1から請求項5のいずれか一項に記載の光コネクタプラグ。
- 前記カバー部材に取り付け可能であって、前記光コネクタの前端部を保護するキャップ部材をさらに備え、
前記キャップ部材の内部には、前記光コネクタの前記前端部の形状に対応する形状のコネクタ受け部が形成されている、請求項1から請求項5のいずれか一項に記載の光コネクタプラグ。 - 前記カバー部材と前記ケーブルとの間に配置された防水用部材をさらに有し、
前記カバー部材に対する前記光コネクタの組み付け時に、前記防水用部材が圧縮される、請求項1から請求項7のいずれか一項に記載の光コネクタプラグ。 - 前記カバー部材は、前記光コネクタを収容するフロントハウジングと、前記フロントハウジングの後端に接続されるリアハウジングと、前記リアハウジングの後端に接続されるブーツと、を含み、
前記リアハウジングの後端には、前記ブーツ側へ突出する複数のアーム部材が形成され、
前記防水用部材が前記複数のアーム部材と前記ケーブルとの間に配置された状態で、前記リアハウジングと前記ブーツとが嵌合されることで、前記防水用部材が前記複数のアーム部材により圧縮されている、請求項8に記載の光コネクタプラグ。 - 前記防水用部材は、前記ケーブルが挿通される貫通部を備えた樹脂部材から構成され、
前記貫通部は、前記ケーブルのノッチ部に対応する突起部を有している、請求項8または請求項9に記載の光コネクタプラグ。 - 前記光コネクタを前記カバー部材に取付けるための取付部材が、前記光コネクタの後端に配置されている、請求項1から請求項10のいずれか一項に記載の光コネクタプラグ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018531023A JP6877432B2 (ja) | 2016-08-02 | 2016-08-02 | 光コネクタプラグ |
PCT/JP2016/072705 WO2018025337A1 (ja) | 2016-08-02 | 2016-08-02 | 光コネクタプラグ |
CN201680088294.5A CN109891288A (zh) | 2016-08-02 | 2016-08-02 | 光连接器插头 |
EP16911598.7A EP3495862A4 (en) | 2016-08-02 | 2016-08-02 | OPTICAL CONNECTOR |
BR112019002114-0A BR112019002114A2 (pt) | 2016-08-02 | 2016-08-02 | plugue de conector óptico |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2016/072705 WO2018025337A1 (ja) | 2016-08-02 | 2016-08-02 | 光コネクタプラグ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018025337A1 true WO2018025337A1 (ja) | 2018-02-08 |
Family
ID=61073700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/072705 WO2018025337A1 (ja) | 2016-08-02 | 2016-08-02 | 光コネクタプラグ |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3495862A4 (ja) |
JP (1) | JP6877432B2 (ja) |
CN (1) | CN109891288A (ja) |
BR (1) | BR112019002114A2 (ja) |
WO (1) | WO2018025337A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021513115A (ja) * | 2018-09-03 | 2021-05-20 | 華為技術有限公司Huawei Technologies Co.,Ltd. | 光ファイバサブアセンブリ及び光ファイバコネクタ |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011027783A (ja) * | 2009-07-21 | 2011-02-10 | Nishi Nippon Electric Wire & Cable Co Ltd | 光ケーブルの接続構造 |
JP2012037652A (ja) * | 2010-08-05 | 2012-02-23 | Suncall Corp | 光コネクタ、取り外し治具、及び光コネクタの取り外し構造 |
JP2014026134A (ja) * | 2012-07-27 | 2014-02-06 | Japan Aviation Electronics Industry Ltd | プラグ及び光コネクタ接続体 |
US20140355936A1 (en) * | 2012-01-13 | 2014-12-04 | 3M Innovative Properties Company | Connector for telecommunication enclosures |
US20160187590A1 (en) * | 2012-05-22 | 2016-06-30 | Adc Telecommunications, Inc. | Ruggedized fiber optic connector |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60205511A (ja) * | 1984-03-30 | 1985-10-17 | Nec Corp | 光フアイバコネクタ |
JP2001290046A (ja) * | 2000-04-10 | 2001-10-19 | Sanwa Denki Kogyo Co Ltd | 光コネクタプラグの防塵キャップ |
US6547450B2 (en) * | 2001-06-27 | 2003-04-15 | Fitel Usa Corp. | Quick-release dust cap for an optical plug |
US7549802B2 (en) * | 2007-06-28 | 2009-06-23 | Verizon Services Corp. | Fiber optic connector |
US8374478B2 (en) * | 2009-07-17 | 2013-02-12 | Adc Telecommunications, Inc. | Fiber optic dust cap and connector for terminating multi-fiber optical cables |
JP5988047B2 (ja) * | 2013-08-22 | 2016-09-07 | 本多通信工業株式会社 | シャッター付き光コネクタプラグ |
CN105629391B (zh) * | 2014-11-06 | 2018-05-01 | 扇港元器件(香港)有限公司 | 主干与光缆固定件之间有改良紧固的光纤连接器 |
-
2016
- 2016-08-02 JP JP2018531023A patent/JP6877432B2/ja active Active
- 2016-08-02 CN CN201680088294.5A patent/CN109891288A/zh active Pending
- 2016-08-02 BR BR112019002114-0A patent/BR112019002114A2/pt not_active Application Discontinuation
- 2016-08-02 EP EP16911598.7A patent/EP3495862A4/en not_active Withdrawn
- 2016-08-02 WO PCT/JP2016/072705 patent/WO2018025337A1/ja unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011027783A (ja) * | 2009-07-21 | 2011-02-10 | Nishi Nippon Electric Wire & Cable Co Ltd | 光ケーブルの接続構造 |
JP2012037652A (ja) * | 2010-08-05 | 2012-02-23 | Suncall Corp | 光コネクタ、取り外し治具、及び光コネクタの取り外し構造 |
US20140355936A1 (en) * | 2012-01-13 | 2014-12-04 | 3M Innovative Properties Company | Connector for telecommunication enclosures |
US20160187590A1 (en) * | 2012-05-22 | 2016-06-30 | Adc Telecommunications, Inc. | Ruggedized fiber optic connector |
JP2014026134A (ja) * | 2012-07-27 | 2014-02-06 | Japan Aviation Electronics Industry Ltd | プラグ及び光コネクタ接続体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3495862A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021513115A (ja) * | 2018-09-03 | 2021-05-20 | 華為技術有限公司Huawei Technologies Co.,Ltd. | 光ファイバサブアセンブリ及び光ファイバコネクタ |
US11378758B2 (en) | 2018-09-03 | 2022-07-05 | Huawei Technologies Co., Ltd. | Optical fiber sub-assembly and optical fiber connector |
Also Published As
Publication number | Publication date |
---|---|
EP3495862A4 (en) | 2020-03-25 |
JP6877432B2 (ja) | 2021-05-26 |
EP3495862A1 (en) | 2019-06-12 |
CN109891288A (zh) | 2019-06-14 |
JPWO2018025337A1 (ja) | 2019-05-23 |
BR112019002114A2 (pt) | 2019-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107533200B (zh) | 光连接器插头、光连接器用插座及光连接器连接构造 | |
US7785019B2 (en) | Multi-fiber fiber optic receptacle and plug assembly | |
JP4343857B2 (ja) | 光学プラグコネクタのプラグケーシングおよびプラグケーシングを受容するプラグコネクタ用カプセル | |
JP5518979B2 (ja) | 光コネクタレセプタクル、レセプタクルハウジング、光コネクタアダプタ、アダプタハウジング | |
KR101105664B1 (ko) | 현장 조립형 광커넥터 | |
JP4833802B2 (ja) | 光コネクタ連結構造体 | |
TWI442122B (zh) | 現場組裝型光連接器 | |
US6390687B1 (en) | Optical ring network, optical connector, and hybrid connector | |
EP3167321B1 (en) | Optical ferrule for multi-fiber cable and hardened multi-fiber optic connector therefore | |
JP2014056229A (ja) | 光コネクタ及び光コネクタの組立方法 | |
JP5882765B2 (ja) | 光コネクタ | |
JP2011027876A (ja) | 多連結型光コネクタ | |
JP5898510B2 (ja) | 光コネクタ | |
JP2018040820A (ja) | 光コネクタプラグ、光コネクタ用レセプタクル、および光コネクタ接続構造 | |
JP2008241729A (ja) | 光ファイバケーブルのコネクタ接続構造およびコネクタ接続端子の形成方法 | |
JP2003161863A (ja) | 光コネクタ及び光コネクタによる光ファイバコード端部の保持構造 | |
WO2018025337A1 (ja) | 光コネクタプラグ | |
JP2018502337A (ja) | 光ファイバのファンアウト/ブレークアウトキットのクロージャ/ハウジング | |
JP2019158957A (ja) | Lc型簡易コネクタプラグ及びそのプラグを使用した光コネクタ装置 | |
JP3652621B2 (ja) | 光中継コネクタ装置及び光中継コネクタ | |
JP2006323067A (ja) | メカニカル接続型光コネクタ及び光コネクタ組立工具。 | |
US20150378111A1 (en) | Optical connector and method for assembling optical connector | |
JP2007192871A (ja) | 光コネクタ | |
JP4822368B2 (ja) | 光コンセント | |
EP1170608A2 (en) | Optical hybrid connector for an optical ring network |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16911598 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2018531023 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112019002114 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 2016911598 Country of ref document: EP Effective date: 20190304 |
|
ENP | Entry into the national phase |
Ref document number: 112019002114 Country of ref document: BR Kind code of ref document: A2 Effective date: 20190201 |