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WO2016184363A1 - 对准套管组件和光纤适配器 - Google Patents

对准套管组件和光纤适配器 Download PDF

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Publication number
WO2016184363A1
WO2016184363A1 PCT/CN2016/082021 CN2016082021W WO2016184363A1 WO 2016184363 A1 WO2016184363 A1 WO 2016184363A1 CN 2016082021 W CN2016082021 W CN 2016082021W WO 2016184363 A1 WO2016184363 A1 WO 2016184363A1
Authority
WO
WIPO (PCT)
Prior art keywords
alignment sleeve
fiber optic
docking
adjustment limiting
limiting member
Prior art date
Application number
PCT/CN2016/082021
Other languages
English (en)
French (fr)
Inventor
童朝阳
程兴均
刘蕾
Original Assignee
爱德奇电讯国际贸易（上海）有限公司
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
Priority claimed from CN201520319609.5U external-priority patent/CN204807747U/zh
Priority claimed from CN201510247621.4A external-priority patent/CN106291825B/zh
Application filed by 爱德奇电讯国际贸易（上海）有限公司 filed Critical 爱德奇电讯国际贸易（上海）有限公司
Priority to MX2017014377A priority Critical patent/MX2017014377A/es
Priority to EP16795850.3A priority patent/EP3296785A4/en
Priority to JP2017559592A priority patent/JP2018518704A/ja
Priority to US15/574,389 priority patent/US10302874B2/en
Priority to AU2016263337A priority patent/AU2016263337A1/en
Publication of WO2016184363A1 publication Critical patent/WO2016184363A1/zh
Priority to US16/419,372 priority patent/US20200142137A1/en

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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
    • G02B6/36—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
    • G02B6/3871—Ferrule rotatable with respect to plug body, e.g. for setting rotational position ; Fixation of ferrules after rotation
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
    • 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
    • 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
    • G02B6/3877—Split sleeves

Definitions

  • the present invention relates to an alignment cannula assembly and a fiber optic adapter including the same.
  • an adapter for fiber optic connector docking (for convenience of description, here a single-core SC-type adapter as an example) generally includes an alignment sleeve, a docking holder (for housing the alignment sleeve and locking docking) Pair of connectors), housing, snap-on retaining clips, securing clips (optional).
  • the alignment sleeve In the prior art, there are machining errors in the alignment sleeve, insufficient roundness of the inner wall, and uneven wall thickness distribution, so that when the fiber connector ferrule is inserted and docked from both ends of the adapter sleeve of the adapter, except for the butt joint There will be an alignment error (loss) between the fiber core pairs in the device, and the alignment sleeve will also have a certain alignment error, resulting in a further increase in connection loss or an increase in connection loss uncertainty. For an individual device, the alignment loss is minimal when the alignment sleeve is only at a certain circumferential angle.
  • the specific circumferential angle at which the loss per individual of the alignment sleeve is minimized may be different, and since there is no circumferential limit, the alignment sleeve may be randomly rotated, thus generating The circumferential angle with the least loss is not recognized and utilized by existing designs.
  • the alignment sleeve is free to rotate in the circumferential direction in the butt holder and has a certain degree of freedom in three directions perpendicular to each other. Since the alignment sleeve itself has certain tolerances, this causes the loss of the mating connector to exhibit a certain polarity, that is, when the alignment sleeve is at a certain range of circumferential angle, the docked fiber connector can reach Minimum insertion loss.
  • the alignment sleeve can be randomly rotated. Therefore, the loss of the entire fiber interconnection system cannot always be maintained in a state where the loss is minimal, or the randomness of the alignment circumferential angle of the casing is randomly affected.
  • the total loss of the fiber optic interconnect system such a situation can not meet the increasingly stringent requirements of the future fiber optic interconnect system for ultra-low loss and reconnect after retraction, repeatable, ultra-low loss.
  • a fiber optic adapter comprising: a docking holder; and an alignment sleeve housed in the docking holder, wherein a ferrule of the fiber optic connector is adapted from the fiber optic adapter An insertion port is inserted into the alignment sleeve, the fiber optic adapter further comprising an adjustment limiting member adapted to adjust a circumferential angle of the alignment sleeve relative to the docking holder, And adapted to maintain the alignment sleeve at a predetermined circumferential angle relative to the docking holder.
  • the insertion sleeve is inserted into the alignment sleeve of the fiber optic adapter
  • the alignment error between the cores of the fibers of a pair of fiber optic connectors is minimal.
  • the longitudinal slot of the alignment sleeve is at a predetermined Orientation.
  • the adjustment limiting member is adapted to be fitted over the alignment sleeve, and a radial projection is formed on an inner wall of the adjustment limiting member, a radial projection adapted to be inserted into a longitudinal slot of the alignment sleeve such that the alignment sleeve is rotatable with the adjustment limiting member, thereby enabling adjustment of the adjustment limiting member by rotation
  • the circumferential angle of the alignment sleeve relative to the docking holder is described.
  • the alignment sleeve when the radial projection of the adjustment limiting member is inserted into the longitudinal slot of the alignment sleeve, the alignment sleeve is opposite the adjustment limit The component cannot be rotated in the circumferential direction.
  • the alignment sleeve when the radial projection of the adjustment limiting member is inserted into the longitudinal slot of the alignment sleeve, the alignment sleeve is opposite the adjustment limit
  • the element can only be rotated in the circumferential direction within an angular range of ⁇ 30 degrees.
  • the alignment sleeve when the radial projection of the adjustment limiting member is inserted into the longitudinal slot of the alignment sleeve, the alignment sleeve is opposite the adjustment limit
  • the element can only be rotated in the circumferential direction within an angular range of ⁇ 20 degrees.
  • the alignment sleeve when the radial projection of the adjustment limiting member is inserted into the longitudinal slot of the alignment sleeve, the alignment sleeve is opposite the adjustment limit
  • the element can only be rotated in the circumferential direction within an angular range of ⁇ 10 degrees.
  • the adjustment limiting member is a multi-faceted prism having a polygonal cross section; and a positioning corresponding to an outer contour of the adjustment limiting member is formed on the docking holder a slot; and the adjustment limiting member is adapted to be secured in a locating slot of the docking retaining body to maintain the alignment sleeve at the predetermined circumferential angle relative to the docking retaining body.
  • a spline is formed on the adjustment restricting member, a spline groove is formed on the mating holder; and a spline on the adjustment restricting member is adapted Secured in a spline groove on the docking holder to retain the alignment sleeve at the predetermined relative to the docking holder Circumferential angle.
  • a first circumferential angular positioning mark is disposed on an outer surface of the adjustment limiting member, and a second circumferential angular positioning mark is disposed on the docking holding body And a first circumferential angular positioning mark of the adjustment limiting element and a second of the docking holder when the adjustment limiting element adjusts the alignment sleeve to the predetermined circumferential angle
  • the circumferential angular positioning marks are aligned.
  • the optical fiber adapter further includes a housing in which the docking holder is mounted; and a slider on the optical fiber connector is disposed on the housing A mating alignment slot is used to ensure that the fiber optic connector is inserted into the fiber optic adapter in the correct orientation.
  • the first circumferential angle positioning mark and the first The two circumferential angular positioning marks are aligned with the alignment slots on the outer casing.
  • the second circumferential angular positioning mark on the docking holder is a slit formed on the docking holder; the inner wall of the outer casing is formed with the An anti-reverse projection that engages the slit on the holder; and the mating holder can be mounted to the outer casing only when the anti-reverse projection of the outer casing is aligned with the slit of the butt holder in.
  • the optical fiber adapter further includes a fixing clip, the fixing clip is inserted on the outer casing, and is clamped on the cylindrical body of the docking holding body, To prevent the docking holder from being pulled out of the outer casing.
  • the fiber optic adapter further includes an elastic snap fastener mounted on the outer casing for locking the fiber optic adapter to a fixed mounting position.
  • the docking holder includes a first butt holder and a second docking holder that can be combined with each other.
  • the positioning groove includes first alignment grooves that are respectively formed on the mating end faces of the first butt holder and the second butt holder. And a second positioning slot.
  • the second circumferential angular positioning mark includes mutually aligned on the mutually mating end faces of the first butt holder and the second butt holder The first incision and the second incision.
  • the fiber optic adapter is adapted to interconnect one or more pairs of fiber optic connectors simultaneously, and one or more alignment sleeves are received in the docking holder for Align the ferrules of one or more pairs of fiber optic connectors.
  • an alignment sleeve assembly comprising: an alignment sleeve adapted to be received in a docking holder of a fiber optic adapter; and an adjustment limiting member adapted to adjust the alignment sleeve The circumferential angle of the tube relative to the docking retaining body and adapted to maintain the alignment sleeve at a predetermined circumferential angle relative to the docking retaining body.
  • the adjustment limiting member is adapted to be fitted over the alignment sleeve, and a radial projection is formed on an inner wall of the adjustment limiting member, the diameter
  • the projection is adapted to be inserted into a longitudinal slot of the alignment sleeve such that the alignment sleeve is rotatable with the adjustment limiting member such that the adjustment of the adjustment member can be adjusted by rotating the adjustment member
  • the circumferential angle of the sleeve relative to the docking retaining body is aligned.
  • the alignment sleeve when the radial projection of the adjustment limiting member is inserted into the longitudinal slot of the alignment sleeve, the alignment sleeve is opposite the adjustment limit The component cannot be rotated in the circumferential direction.
  • the alignment sleeve when the radial projection of the adjustment limiting member is inserted into the longitudinal slot of the alignment sleeve, the alignment sleeve is opposite the adjustment limit
  • the element can only be rotated in the circumferential direction within an angular range of ⁇ 30 degrees.
  • the alignment sleeve when the radial projection of the adjustment limiting member is inserted into the longitudinal slot of the alignment sleeve, the alignment sleeve is opposite the adjustment limit
  • the element can only be rotated in the circumferential direction within an angular range of ⁇ 20 degrees.
  • the alignment sleeve when the radial projection of the adjustment limiting member is inserted into the longitudinal slot of the alignment sleeve, the alignment sleeve is opposite the adjustment limit
  • the element can only be rotated in the circumferential direction within an angular range of ⁇ 10 degrees.
  • the adjustment limiting element is a multifaceted prism having a polygonal cross section.
  • a first circumferential angular positioning mark is disposed on an outer surface of the adjustment limiting member for identifying the alignment sleeve relative to the docking holder The predetermined circumferential angle.
  • the adjustment limiting member is capable of adjusting the circumferential angle of the alignment sleeve relative to the docking holder, thereby enabling adjustment of the alignment sleeve to a predetermined position relative to the docking holder
  • the circumferential angle for example, is adjusted to a circumferential angle that minimizes fiber insertion loss
  • the adjustment limiting element is capable of fixing the alignment sleeve at a circumferential angle that minimizes fiber insertion loss, thereby improving the fiber optic connector Alignment accuracy when docking.
  • FIG. 1 shows an exploded schematic view of a fiber optic adapter in accordance with a first exemplary embodiment of the present invention
  • Figure 2 is a perspective view showing the adjustment limiting member of the optical fiber adapter shown in Figure 1;
  • Figure 3 is a perspective view showing the alignment sleeve of the fiber optic adapter shown in Figure 1;
  • Figure 4 shows a schematic view of the alignment sleeve assembly formed after the adjustment limiting member shown in Figure 2 is mounted on the alignment sleeve shown in Figure 3;
  • Figure 5 is a schematic view showing the formation of a first circumferential angular positioning mark on the outer surface of the adjustment limiting member of the alignment sleeve assembly shown in Figure 4;
  • FIG. 6 and 7 show schematic views of mounting the alignment sleeve assembly shown in FIG. 5 into the first docking holder
  • Figure 10 is a schematic view showing the assembly of the first butt holder and the second butt holder assembled together into the outer casing;
  • Figure 11 shows the anti-reverse structure between the outer casing and the docking holder
  • Figure 12 is a schematic view showing the mounting of the elastic snap on the outer casing
  • Figure 13 shows a perspective view of an assembled fiber optic adapter in accordance with a first exemplary embodiment of the present invention
  • Figure 14 shows a schematic view of a fiber optic adapter in accordance with a second exemplary embodiment of the present invention, showing a schematic view of the alignment sleeve assembly mounted in the first docking holder;
  • Figure 15 shows a schematic view of assembling a first butt holder having an alignment sleeve assembly already mounted with a second docking holder;
  • Figure 16 shows a perspective schematic view of an assembled fiber optic adapter in accordance with a second exemplary embodiment of the present invention.
  • a fiber optic adapter comprising: a docking holder; and an alignment sleeve housed in the docking holder, wherein a ferrule of the fiber optic connector is adapted from the An insertion port of the fiber optic adapter is inserted into the alignment sleeve, the fiber optic adapter further comprising an adjustment limiting member adapted to adjust a circumference of the alignment sleeve relative to the docking holder The angle is and is adapted to maintain the alignment sleeve at a predetermined circumferential angle relative to the docking holder.
  • an alignment sleeve assembly comprising: an alignment sleeve adapted to be received in a docking holder of a fiber optic adapter; and an adjustment limiting member adapted to adjust the alignment A circumferential angle of the sleeve relative to the docking retaining body and adapted to maintain the alignment sleeve at a predetermined circumferential angle relative to the docking retaining body.
  • FIG. 1 through 13 show a fiber optic adapter in accordance with a first exemplary embodiment of the present invention.
  • FIG. 1 shows an exploded schematic view of a fiber optic adapter in accordance with a first exemplary embodiment of the present invention.
  • a fiber optic adapter is disclosed.
  • Figure 1 shows an LC-type fiber optic adapter.
  • the fiber optic adapter primarily includes a housing 100, abutting retaining bodies 110, 120, an alignment sleeve 130 and an adjustment limiting member 140.
  • the docking holders 110, 120 include a first docking holder 110 and a second docking holder 120 that can be combined with each other.
  • the first butt holder 110 and the second butt holder 120 are used to receive the alignment sleeve 130 and a pair of fiber optic connectors (not shown) that are locked and docked.
  • the ferrules of the fiber optic connector are adapted to be inserted into the alignment sleeve 130 from the insertion ports 101, 102 of the fiber optic adapter such that the fiber cores of the fiber optic connector are mated to each other in the alignment sleeve 130.
  • FIG. 2 is a perspective view showing the adjustment limiting member 140 of the optical fiber adapter shown in FIG. 1.
  • FIG. 3 is a perspective view showing the alignment sleeve 130 of the optical fiber adapter shown in FIG. 1.
  • the adjustment limiting member 140 is adapted to adjust the circumferential angle of the alignment sleeve 130 relative to the docking holders 110, 120 and is adapted to The alignment sleeve 130 is maintained at a predetermined circumferential angle with respect to the docking holders 110, 120.
  • a pair of alignment sleeves 130 that are inserted into the fiber optic adapter when the alignment sleeve 130 is held at a predetermined circumferential angle relative to the docking holders 110, 120
  • the alignment error between the cores of the fiber optic connectors is minimal (insertion loss is minimal).
  • the insertion loss of the fiber optic connector can be minimized by adjusting and positioning the alignment sleeve 130 with respect to the circumferential angle of the docking holders 110, 120.
  • the fiber optic adapter shown in Figure 1 is only suitable for interconnecting a pair of fiber optic connectors simultaneously.
  • the present invention is not limited to the illustrated embodiment, and the present invention is also applicable to a fiber optic adapter capable of interconnecting a plurality of pairs of optical fiber connectors at the same time.
  • the adjustment limiting member 140 is adapted to fit over the alignment sleeve 130, and a radial projection 141 is formed on the inner wall of the adjustment limiting member 140.
  • the radial projection 141 is adapted to be inserted into the longitudinal slot 131 of the alignment sleeve 130 such that the alignment sleeve 130 can be rotated with the adjustment limiting member 140 so that the adjustment member can be adjusted by rotating the adjustment member 140
  • the quasi-sleeve 130 is angled relative to the mating retaining bodies 110, 120.
  • the thickness of the radial projection 141 of the adjustment limiting member 140 may be equal to or slightly less than the width of the longitudinal slot 131 of the alignment sleeve 130.
  • the alignment sleeve 130 cannot be rotated in the circumferential direction relative to the adjustment limiting member 140 or can only Rotation within a small angular range, for example, can only be rotated within an angular range of ⁇ 30 degrees, preferably within an angular range of ⁇ 20 degrees, and more preferably within an angular range of ⁇ 10 degrees.
  • FIG. 5 shows a schematic view of forming a first circumferential angular positioning mark 142a on the outer surface 142 of the adjustment limiting member 140 of the alignment cannula assembly shown in FIG.
  • the alignment sleeve 130 is first adjusted by adjusting the limiting member 140 to The optimum circumferential angle that minimizes the insertion loss of the fiber optic connector.
  • FIG. 6 and 7 show schematic views of the alignment sleeve assembly shown in Fig. 5 mounted into the first docking holder 110.
  • 8 and 9 show that the first docking holder 110 and the second docking holder 120, to which the alignment sleeve assembly has been mounted, are assembled.
  • a first circumferential angular positioning mark 142a is provided on the outer surface 142 of the adjustment limiting member 140 for identifying the optimal circumference of the alignment sleeve 130 relative to the docking holder 110 that minimizes insertion loss of the fiber optic connector. To the angle. In the illustrated embodiment, the first circumferential angular positioning mark 142a should be aligned with the second circumferential angular positioning marks 112, 122 disposed on the docking holders 110, 120.
  • the adjustment limiting element 140 is a multi-faceted prism having a polygonal cross section.
  • the adjustment limiting element 140 may be a polygonal faceted prism having a cross-section of a triangle, a quadrangle, a pentagon, a hexagon, or a polygon having more sides.
  • the cross-section of the adjustment-limiting element 140 may be a regular polygon, but is not limited to a regular polygon.
  • positioning grooves 111 and 121 corresponding to the outer contour of the adjustment restricting member 140 are formed on the butting holding bodies 110 and 120.
  • the adjustment limiting member 140 is adapted to be secured in the positioning slots 111, 121 of the docking holders 110, 120 to maintain the alignment sleeve 130 at a position that minimizes insertion loss of the fiber optic connector relative to the docking holders 110, 120. The best circumferential angle.
  • the present invention is not limited to the illustrated embodiment, and the adjustment limiting member may be otherwise fixed to the docking holder.
  • a spline is formed on the adjustment limiting member
  • a spline groove is formed on the docking holder
  • the spline on the adjustment limiting member is adapted to be fixed at the docking
  • the retaining member is secured in the splined groove so that the adjustment limiting member can be secured to the docking retaining body so that the alignment sleeve can be held in an optimal position to minimize insertion loss of the fiber optic connector relative to the docking retaining body.
  • the circumferential angle is secured in the splined groove so that the adjustment limiting member can be secured to the docking retaining body so that the alignment sleeve can be held in an optimal position to minimize insertion loss of the fiber optic connector relative to the docking retaining body.
  • FIG. 10 shows a schematic view of mounting the first butt holder 110 and the second docking holder 120 assembled together into the outer casing 100.
  • an alignment slot 103 mated with a slider (not shown) on the fiber optic connector is provided on the housing 100 for ensuring that the fiber optic connector is in the correct orientation. Insert into the fiber adapter.
  • the adjustment limiting element 140 maintains the alignment sleeve 130 at an optimum circumferential angle that minimizes the insertion loss of the fiber optic connector, the first circumferential angular positioning mark 142a and the second circumferential angular positioning mark 112, 122 is aligned with the alignment slot 103 on the housing 100.
  • Figure 11 shows the anti-reverse structure between the outer casing 100 and the docking holders 110, 120.
  • the second circumferential angular positioning marks 112, 122 on the docking holders 110, 120 are slits formed in the docking holding bodies 110, 120; on the inner wall of the outer casing 100.
  • Anti-reverse projections 106 that cooperate with the slits on the butt holders 110, 120 are formed thereon. Therefore, the butt holders 110, 120 can be mounted into the outer casing 100 only when the anti-reverse projections 106 of the outer casing 100 are aligned with the slits of the butt holding bodies 110, 120.
  • the butt holders 110, 120 cannot be mounted in the outer casing 100, so that the butt holders 110, 120 can be effectively prevented from being reversed.
  • the butt holders 110, 120 can be effectively prevented from being reversed.
  • the optical fiber adapter may further include a fixing clip 150 which is inserted into the outer casing 100 and is clamped on the cylindrical main body 123 of the mating holding body 110, 120 to prevent docking.
  • the holders 110, 120 are pulled out of the outer casing 100.
  • the securing clip 150 is inserted from the slot 105 (see FIG. 1) of the housing 100, and the two prongs of the securing clip 150 are respectively inserted into the two jacks 104 of the housing 100, thereby placing the card It is held on the cylindrical body 123 of the docking holding bodies 110 and 120.
  • FIG. 12 shows a schematic view of mounting the elastic buckle 160 on the outer casing 100.
  • Figure 13 shows a perspective schematic view of an assembled fiber optic adapter in accordance with a first exemplary embodiment of the present invention.
  • the fiber optic adapter can also include a resilient snap 160 that is mounted to the housing 100 for locking the fiber optic adapter to a fixed mounting position.
  • the docking holders 110, 120 include a first docking holder 110 and a second docking holder 120 that can be combined with each other.
  • the positioning grooves 111 and 121 include first positioning grooves 111 and second positioning grooves 121 which are respectively formed on the mutually matching end faces of the first butt holder 110 and the second butt holder 120.
  • the second circumferential angular positioning marks 112, 122 include first and second slits 111, 121, respectively, which are formed on the mating end faces of the first butt holder 110 and the second butt holder 120.
  • the alignment sleeve 130 can also be adjusted to a predetermined circumferential angle by the adjustment limiting member 140 disclosed herein and fixed at a predetermined circumferential angle.
  • Figure 14 shows a schematic view of a fiber optic adapter in accordance with a second exemplary embodiment of the present invention, showing a schematic view of the alignment sleeve assembly mounted in the first docking holder 210;
  • Figure 15 shows that an alignment sleeve will have been installed
  • FIG. 16 shows a perspective view of the assembled fiber optic adapter in accordance with the second exemplary embodiment of the present invention.
  • the fiber optic adapter is adapted to interconnect a plurality of pairs of fiber optic connectors simultaneously, and a plurality of alignment sleeves 230 are received in the docking holders 210, 220, A ferrule for aligning pairs of fiber optic connectors.
  • the optical fiber adapter has no outer casing, and the docking holding bodies 210 and 220 are directly attached to the outside as the mounting body of the optical fiber adapter.
  • the docking holders 210, 220 include a first docking holder 210 and a second docking holder 220 that can be combined with each other.
  • the first butt holder 210 and the second butt holder 220 are used to receive the alignment sleeve 230 and the fiber optic connector (not shown) that locks the docking.
  • the ferrules of the fiber optic connector are adapted to be inserted into the alignment sleeve 230 from the insertion ports 201, 202 of the fiber optic adapter such that the fiber cores of the fiber optic connector are mated to each other in the alignment sleeve 230.
  • the adjustment limiting member 240 is adapted to adjust the circumferential angle of the alignment sleeve 230 relative to the docking holders 210, 220 and is adapted to oppose the docking holder 210 , 220 maintains the alignment sleeve 230 at a predetermined circumferential angle.
  • the adjustment limiting member 240 is adapted to fit over the alignment sleeve 230, and a radial projection is formed on the inner wall of the adjustment limiting member 240.
  • the projection is adapted to be inserted into the longitudinal slot 231 of the alignment sleeve 230 such that the alignment sleeve 230 can be rotated with the adjustment limiting member 240 such that the alignment sleeve 230 can be adjusted by rotationally adjusting the restriction member 240.
  • the thickness of the radial projections of the adjustment limiting element 240 may be equal At or slightly less than the width of the longitudinal slot 231 of the alignment sleeve 230.
  • the alignment sleeve 230 cannot rotate in the circumferential direction relative to the adjustment limiting member 240 or can only Rotation within a small angular range, for example, can only be rotated within an angular range of ⁇ 30 degrees, preferably within an angular range of ⁇ 20 degrees, and more preferably within an angular range of ⁇ 10 degrees.
  • the alignment sleeve 230 is first adjusted by adjusting the limiting member 240 to enable The best circumferential angle of the fiber optic connector with the least insertion loss.
  • the adjustment is made when the alignment sleeve 230 has been determined to be at an optimum circumferential angle with respect to the docking holder 210 that minimizes the insertion loss of the fiber optic connector.
  • a first circumferential angular positioning mark 242a is provided on the outer surface 242 of the limiting member 240 for identifying an optimum circumferential angle of the alignment sleeve 230 relative to the docking holder 210 that minimizes insertion loss of the fiber optic connector. .
  • the first circumferential angular positioning mark 242a should be aligned with the second circumferential angular positioning marks 212, 222 provided on the docking holders 210, 220.
  • the adjustment restricting member 240 is a multi-faceted prism having a polygonal cross section.
  • the adjustment limiting element 140 may be a polygonal faceted prism having a cross-section of a triangle, a quadrangle, a pentagon, a hexagon, or a polygon having more sides.
  • the cross-section of the adjustment-limiting element 140 may be a regular polygon, but is not limited to a regular polygon.
  • Positioning grooves 211, 221 corresponding to the outer contour of the adjustment restricting member 240 are formed on the butt holders 210, 220.
  • the adjustment limiting member 240 is adapted to be secured in the positioning slots 211, 221 of the docking holders 210, 220 to maintain the alignment sleeve 230 with respect to the docking holders 210, 220 to minimize insertion loss of the fiber optic connector. The best circumferential angle.
  • the present invention is not limited to the illustrated embodiment, and the adjustment limiting member may be otherwise fixed to the docking holder.
  • a spline is formed on the adjustment limiting member
  • a spline groove is formed on the docking holder
  • the spline on the adjustment limiting member is adapted to be fixed at the docking
  • the retaining member is secured in the splined groove so that the adjustment limiting member can be secured to the docking retaining body so that the alignment sleeve can be held in an optimal position to minimize insertion loss of the fiber optic connector relative to the docking retaining body.
  • the circumferential angle is secured in the splined groove so that the adjustment limiting member can be secured to the docking retaining body so that the alignment sleeve can be held in an optimal position to minimize insertion loss of the fiber optic connector relative to the docking retaining body.
  • the second circumferential angular positioning marks 212, 222 on the butt holding bodies 210, 220 are slits formed in the butt holding bodies 210, 220.
  • the docking holders 210, 220 include a first docking holder 210 and a second docking holder 220 that can be combined with each other.
  • the positioning grooves 211, 221 are respectively formed The first positioning groove 211 and the second positioning groove 221 are aligned with each other on the mating end faces of the first butt holder 210 and the second butt holder 220.
  • the second circumferential angular positioning marks 212, 222 include first and second slits 211, 221, which are respectively formed on the mating end faces of the first butt holder 210 and the second butt holder 220.
  • the alignment sleeve 230 can also be adjusted to a predetermined circumferential angle by the adjustment limiting member 240 disclosed herein and fixed at a predetermined circumferential angle.

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

Abstract

一种光纤适配器，包括：对接保持体（110，120）；和对准套管（130），容纳在所述对接保持体（110，120）中，光纤连接器的插芯适于从所述光纤适配器的插入端口（101，102）插入到所述对准套管（130）中，所述光纤适配器还包括调节限向元件（140），所述调节限向元件（140）适于调节所述对准套管（130）相对于所述对接保持体（110，120）的周向角度，并且适于相对于所述对接保持体（110，120）将所述对准套管（130）保持在预定的周向角度处。因此，所述调节限向元件（140）能够相对于对接保持体（110，120）将对准套管（130）调节到预定的周向角度处，可以调节到使光纤插入损耗最小的周向角度处，并且能够将对准套管（130）固定在使光纤插入损耗最小的周向角度处，从而提高了光纤连接器对接时的对准精度。

Description

对准套管组件和光纤适配器
本申请要求于2015年5月15日递交中国专利局的、申请号为201520319609.5以及2015年5月15日递交中国专利局的、申请号为201510247621.4的中国专利申请的权益，这些申请的全部公开内容以引用方式并入本文。
技术领域
本发明涉及一种对准套管组件以及包括该对准套管组件的光纤适配器。
背景技术
在现有技术中，用于光纤连接器对接的适配器(为方便说明，此处以单芯SC型适配器为例)一般包括对准套管、对接保持件(用于收纳对准套管以及锁定对接的一对连接器)、外壳、卡扣式固定卡簧、保固卡扣(可选件)。
在现有技术中，对准套管存在加工误差，内壁真圆度不够以及壁厚分布不均匀，这样，当光纤连接器插芯从适配器的对准套管两端插入对接时，除了对接连接器内的光纤纤芯对之间会产生对准误差外(产生损耗)，对准套管也会产生一定的对准误差，从而导致连接损耗进一步地增大或连接损耗的不确定性增大；而对某一个体器件而言，对准套管只有处在某个特定的周向角时，其产生的对接损耗才是最小的。
在现有技术中，对于批量制造而言，每个对准套管个体产生的损耗最小的特定周向角会不尽相同，并且由于没有周向限位，对准套管可以随机转动，因此，产生损耗最小的周向角没有被现有设计所认知并善加利用。
在现有的光纤适配器中，对准套管在对接保持件中可以自由地沿周向转动并且在相互垂直的三个方向上都具有一定的自由度。由于对准套管本身有一定的公差，这会导致对接的连接器产生的损耗呈现一定的极性，即当对准套管处在某一特定范围的周向角时，对接的光纤连接器才能达到最小插入损耗。但是在现有的公开的技术条件下，对准套管可以随机转动，因此，整个光纤互联系统的损耗不能总保持在产生损耗最小的状态，或者说对准套管周向角的随机性随机地影响着光纤互联系统的总损耗，这样的情形满足不了未来光纤互联系统对超低损耗及退拔后再连接、可重复、超低损耗等的愈来愈严格的要求。
发明内容
本发明的目的旨在解决现有技术中存在的上述问题和缺陷的至少一个方面。
本发明的一个目的在于提供一种对准套管组件以及包括该对准套管组件的光纤适 配器，其能够相对于光纤适配器的对接保持体将对准套管保持在使光纤插入损耗最小的周向角度处，从而提高了光纤连接器对接时的对准精度。
根据本发明的一个方面，提供一种光纤适配器，包括：对接保持体；和对准套管，容纳在所述对接保持体中，其中，光纤连接器的插芯适于从所述光纤适配器的插入端口插入到所述对准套管中，所述光纤适配器还包括调节限向元件，所述调节限向元件适于调节所述对准套管相对于所述对接保持体的周向角度，并且适于相对于所述对接保持体将所述对准套管保持在预定的周向角度处。
根据本发明的一个实例性的实施例，当所述对准套管相对于所述对接保持体被保持在所述预定的周向角度时，插入到所述光纤适配器的对准套管中的一对光纤连接器的光纤的纤芯之间的对准误差最小。
根据本发明的另一个实例性的实施例，当所述对准套管相对于所述对接保持体被保持在所述预定的周向角度时，所述对准套管的纵向狭槽处于预定的方位。
根据本发明的另一个实例性的实施例，所述调节限向元件适于套装在所述对准套管上，并且在所述调节限向元件的内壁上形成有径向凸起，所述径向凸起适于插入所述对准套管的纵向狭槽中，使得所述对准套管能够随所述调节限向元件一起转动，从而能够通过转动所述调节限向元件来调节所述对准套管相对于所述对接保持体的周向角度。
根据本发明的另一个实例性的实施例，当所述调节限向元件的径向凸起插入所述对准套管的纵向狭槽中时，所述对准套管相对于所述调节限向元件在周向上不能转动。
根据本发明的另一个实例性的实施例，当所述调节限向元件的径向凸起插入所述对准套管的纵向狭槽中时，所述对准套管相对于所述调节限向元件在周向上只能在±30度的角度范围内转动。
根据本发明的另一个实例性的实施例，当所述调节限向元件的径向凸起插入所述对准套管的纵向狭槽中时，所述对准套管相对于所述调节限向元件在周向上只能在±20度的角度范围内转动。
根据本发明的另一个实例性的实施例，当所述调节限向元件的径向凸起插入所述对准套管的纵向狭槽中时，所述对准套管相对于所述调节限向元件在周向上只能在±10度的角度范围内转动。
根据本发明的另一个实例性的实施例，所述调节限向元件是横截面为多边形的多面棱柱体；在所述对接保持体上形成有与所述调节限向元件的外轮廓对应的定位槽；并且所述调节限向元件适于固定在所述对接保持体的定位槽中，以便相对于所述对接保持体将所述对准套管保持在所述预定的周向角度处。
根据本发明的另一个实例性的实施例，在所述调节限向元件上形成有花键，在所述对接保持体上形成有花键槽；并且所述调节限向元件上的花键适于固定在所述对接保持体上的花键槽中，以便相对于所述对接保持体将所述对准套管保持在所述预定的 周向角度处。
根据本发明的另一个实例性的实施例，在所述调节限向元件的外表面上设置有第一周向角度定位标记，并且在所述对接保持体上设置有第二周向角度定位标记；并且当所述调节限向元件将所述对准套管调节到所述预定的周向角度时，所述调节限向元件的第一周向角度定位标记与所述对接保持体的第二周向角度定位标记对齐。
根据本发明的另一个实例性的实施例，所述光纤适配器还包括外壳，所述对接保持体安装在所述外壳中；并且在所述外壳上设置有与所述光纤连接器上的滑块配合的对准槽，用于确保所述光纤连接器以正确的方位插入所述光纤适配器中。
根据本发明的另一个实例性的实施例，当所述调节限向元件将所述对准套管保持在所述预定的周向角度时，所述第一周向角度定位标记和所述第二周向角度定位标记与所述外壳上的对准槽对齐。
根据本发明的另一个实例性的实施例，所述对接保持体上的第二周向角度定位标记为形成在所述对接保持体上的切口；在所述外壳的内壁上形成有与所述对接保持体上的所述切口配合的防反装凸起；并且仅当所述外壳的防反装凸起与所述对接保持体的切口对齐时，所述对接保持体才能安装到所述外壳中。
根据本发明的另一个实例性的实施例，所述光纤适配器还包括固定卡件，所述固定卡件插装在所述外壳上，并卡持在所述对接保持体的筒状主体上，以防止所述对接保持体从所述外壳中拉出。
根据本发明的另一个实例性的实施例，所述光纤适配器还包括弹性卡扣，所述弹性卡扣安装在所述外壳上，用于将所述光纤适配器锁定到固定的安装位置。
根据本发明的另一个实例性的实施例，所述对接保持体包括能够相互组合在一起的第一对接保持体和第二对接保持体。
根据本发明的另一个实例性的实施例，所述定位槽包括分别形成在所述第一对接保持体和所述第二对接保持体的相互配合的端面上的、相互对齐的第一定位槽和第二定位槽。
根据本发明的另一个实例性的实施例，所述第二周向角度定位标记包括分别形成在所述第一对接保持体和所述第二对接保持体的相互配合的端面上的、相互对齐的第一切口和第二切口。
根据本发明的另一个实例性的实施例，所述光纤适配器适于同时互联一对或多对光纤连接器，并且在所述对接保持体中容纳有一个或多个对准套管，用于对准一对或多对光纤连接器的插芯。
根据本发明的另一个方面，提供一种对准套管组件，包括：对准套管，适于容纳在光纤适配器的对接保持体中；和调节限向元件，适于调节所述对准套管相对于所述对接保持体的周向角度，并且适于相对于所述对接保持体将所述对准套管保持在预定的周向角度处。
根据本发明的一个实例性的实施例，所述调节限向元件适于套装在所述对准套管上，并且在所述调节限向元件的内壁上形成有径向凸起，所述径向凸起适于插入所述对准套管的纵向狭槽中，使得所述对准套管能够随所述调节限向元件一起转动，从而能够通过转动所述调节限向元件来调节所述对准套管相对于所述对接保持体的周向角度。
根据本发明的另一个实例性的实施例，当所述调节限向元件的径向凸起插入所述对准套管的纵向狭槽中时，所述对准套管相对于所述调节限向元件在周向上不能转动。
根据本发明的另一个实例性的实施例，当所述调节限向元件的径向凸起插入所述对准套管的纵向狭槽中时，所述对准套管相对于所述调节限向元件在周向上只能在±30度的角度范围内转动。
根据本发明的另一个实例性的实施例，当所述调节限向元件的径向凸起插入所述对准套管的纵向狭槽中时，所述对准套管相对于所述调节限向元件在周向上只能在±20度的角度范围内转动。
根据本发明的另一个实例性的实施例，当所述调节限向元件的径向凸起插入所述对准套管的纵向狭槽中时，所述对准套管相对于所述调节限向元件在周向上只能在±10度的角度范围内转动。
根据本发明的另一个实例性的实施例，所述调节限向元件是横截面为多边形的多面棱柱体。
根据本发明的另一个实例性的实施例，在所述调节限向元件的外表面上设置有第一周向角度定位标记，用于标识所述对准套管相对于所述对接保持体的所述预定的周向角度。
在本发明的前述各个实例性的实施例中，调节限向元件能够调节对准套管相对于对接保持体的周向角度，因此，能够相对于对接保持体将对准套管调节到预定的周向角度处，例如，调节到使光纤插入损耗最小的周向角度处，并且调节限向元件能够将对准套管固定在使光纤插入损耗最小的周向角度处，从而提高了光纤连接器对接时的对准精度。
通过下文中参照附图对本发明所作的描述，本发明的其它目的和优点将显而易见，并可帮助对本发明有全面的理解。
附图说明
图1显示根据本发明的第一实例性的实施例的光纤适配器的分解示意图；
图2显示图1中所示的光纤适配器的调节限向元件的立体示意图；
图3显示图1中所示的光纤适配器的对准套管的立体示意图；
图4显示将图2所示的调节限向元件安装在图3所示的对准套管上之后所形成的对准套管组件的示意图；
图5显示在图4所示的对准套管组件的调节限向元件的外表面上形成第一周向角度定位标记的示意图；
图6和图7显示将图5所示的对准套管组件安装到第一对接保持体中的示意图；
图8和图9显示将已经安装有对准套管组件的第一对接保持体与第二对接保持体组装在一起；
图10显示将组装在一起的第一对接保持体和第二对接保持体安装到外壳中的示意图；
图11显示外壳与对接保持体之间的防反装结构；
图12显示将弹性卡扣安装在外壳上的示意图；
图13显示根据本发明的第一实例性的实施例的组装好的光纤适配器的立体示意图；
图14显示根据本发明的第二实例性的实施例的光纤适配器的示意图，其中显示对准套筒组件安装到第一对接保持体中的示意图；
图15显示将已经安装有对准套筒组件的第一对接保持体与第二对接保持体组装在一起的示意图；和
图16显示根据本发明的第二实例性的实施例的组装好的光纤适配器的立体示意图。
具体实施方式
下面通过实施例，并结合附图，对本发明的技术方案作进一步具体的说明。在说明书中，相同或相似的附图标号指示相同或相似的部件。下述参照附图对本发明实施方式的说明旨在对本发明的总体发明构思进行解释，而不应当理解为对本发明的一种限制。
根据本发明的一个总体技术构思，公开了一种光纤适配器，包括：对接保持体；和对准套管，容纳在所述对接保持体中，其中，光纤连接器的插芯适于从所述光纤适配器的插入端口插入到所述对准套管中，所述光纤适配器还包括调节限向元件，所述调节限向元件适于调节所述对准套管相对于所述对接保持体的周向角度，并且适于相对于所述对接保持体将所述对准套管保持在预定的周向角度处。
根据本发明的另一个总体技术构思，公开了对准套管组件，包括：对准套管，适于容纳在光纤适配器的对接保持体中；和调节限向元件，适于调节所述对准套管相对于所述对接保持体的周向角度，并且适于相对于所述对接保持体将所述对准套管保持在预定的周向角度处。
第一实施例
图1至图13显示了根据本发明的第一实例性的实施例的光纤适配器。
图1显示根据本发明的第一实例性的实施例的光纤适配器的分解示意图。
在本发明的一个实例性的实施例中，公开了一种光纤适配器。图1显示了一种LC型光纤适配器。如图1所示，该光纤适配器主要包括外壳100，对接保持体110、120，对准套管130和调节限向元件140。
在图1所示的实施例中，对接保持体110、120包括能够相互组合在一起的第一对接保持体110和第二对接保持体120。第一对接保持体110和第二对接保持体120用于收纳对准套管130以及锁定对接的一对光纤连接器(未图示)。光纤连接器的插芯适于从光纤适配器的插入端口101、102插入到对准套管130中，使得光纤连接器的光纤纤芯在对准套管130中实现相互对接。
图2显示图1中所示的光纤适配器的调节限向元件140的立体示意图；图3显示图1中所示的光纤适配器的对准套管130的立体示意图；图4显示将图2所示的调节限向元件140安装在图3所示的对准套管130上之后所形成的对准套管组件的示意图。
如图1至图4所示，在本发明的一个实例性的实施例中，调节限向元件140适于调节对准套管130相对于对接保持体110、120的周向角度，并且适于相对于对接保持体110、120将对准套管130保持在预定的周向角度处。
在本发明的一个实例性的实施例中，当对准套管130相对于对接保持体110、120被保持在预定的周向角度时，插入到光纤适配器的对准套管130中的一对光纤连接器的光纤的纤芯之间的对准误差最小(插入损耗最小)。这样，可以通过调节和定位对准套管130相对于对接保持体110、120的周向角度来使光纤连接器的插入损耗最小。
在图1至图13所示的第一实施例中，在对接保持体110、120中仅容纳有一个对准套管130，用于对准一对光纤连接器的插芯。因此，图1所示的光纤适配器仅适于同时互联一对光纤连接器。但是，本发明不局限于图示的实施例，本发明也可以适用于能够同时互联多对光纤连接器的光纤适配器。
下面将借助附图来详细说明前述光纤适配器的各个部件的结构和组装过程。
如图2至图4所示，在图示的实施例中，调节限向元件140适于套装在对准套管130上，并且在调节限向元件140的内壁上形成有径向凸起141，该径向凸起141适于插入对准套管130的纵向狭槽131中，使得对准套管130能够随调节限向元件140一起转动，从而能够通过转动调节限向元件140来调节对准套管130相对于对接保持体110、120的周向角度。
在本发明的一个实例性的实施例中，调节限向元件140的径向凸起141的厚度可以等于或稍小于对准套管130的纵向狭槽131的宽度。这样，当调节限向元件140的径向凸起141插入对准套管130的纵向狭槽131中时，对准套管130相对于调节限向元件140在周向上就不能转动或者只能在很小的角度范围内转动，例如，只能在±30度的角度范围内转动，优选地，在±20度的角度范围内转动，更优选地，在±10度的角度范围内转动。
图5显示在图4所示的对准套管组件的调节限向元件140的外表面142上形成第一周向角度定位标记142a的示意图。
如图4和图5所示，在图示的实施例中，在将对准套管130安装到对接保持体110、120中之前，先通过调节限向元件140将对准套管130调节到能够使光纤连接器的插入损耗最小的最佳的周向角度。
图6和图7显示将图5所示的对准套管组件安装到第一对接保持体110中的示意图。图8和图9显示将已经安装有对准套管组件的第一对接保持体110与第二对接保持体120组装在一起。
如图5至图9所示，在图示的实施例中，在已经确定对准套管130相对于对接保持体110的能够使光纤连接器的插入损耗最小的最佳的周向角度时，在调节限向元件140的外表面142上设置第一周向角度定位标记142a，用于标识对准套管130相对于对接保持体110的能够使光纤连接器的插入损耗最小的最佳的周向角度。在图示的实施例中，该第一周向角度定位标记142a应当与对接保持体110、120上设置的第二周向角度定位标记112、122对齐。这样，在将图5所示的对准套管组件安装到对接保持体110、120中时，只需将调节限向元件140上的第一周向角度定位标记142a与对接保持体110、120上的第二周向角度定位标记112、122对齐，即可保证对准套管130相对于对接保持体110处于能够使光纤连接器的插入损耗最小的最佳的周向角度。
在本发明的一个实例性的实施例中，如图5至图9所示，调节限向元件140是横截面为多边形的多面棱柱体。在本发明的一个实施例，调节限向元件140可以是横截面为三边形、四边形、五边形、六边形或具有更多个边的多边形的多面棱柱体。在本发明的另一个实施例中，调节限向元件140的横截面可以是正多边形，但不局限于正多边形。并且在对接保持体110、120上形成有与调节限向元件140的外轮廓对应的定位槽111、121。调节限向元件140适于固定在对接保持体110、120的定位槽111、121中，以便相对于对接保持体110、120将对准套管130保持在能够使光纤连接器的插入损耗最小的最佳的周向角度处。
请注意，本发明不局限于图示的实施例，调节限向元件还可以通过其它方式固定在对接保持体上。例如，在本发明的另一个实例性的实施例中，在调节限向元件上形成有花键，在对接保持体上形成有花键槽；并且调节限向元件上的花键适于固定在对接保持体上的花键槽中，这样，就能够将调节限向元件固定在对接保持体上，从而能够相对于对接保持体将对准套管保持在能够使光纤连接器的插入损耗最小的最佳的周向角度处。
图10显示将组装在一起的第一对接保持体110和第二对接保持体120安装到外壳100中的示意图。
如图9和图10所示，在将第一对接保持体110和第二对接保持体120组装在一起之后，将整个对接保持体110、120安装到外壳100中。
如图10所示，在图示的实施例中，在外壳100上设置有与光纤连接器上的滑块(未图示)配合的对准槽103，用于确保光纤连接器以正确的方位插入光纤适配器中。当调节限向元件140将对准套管130保持在能够使光纤连接器的插入损耗最小的最佳的周向角度时，第一周向角度定位标记142a和第二周向角度定位标记112、122与外壳100上的对准槽103对齐。这样，在将对接保持体110、120安装到外壳100中时，只要将第一周向角度定位标记142a和第二周向角度定位标记112、122与外壳100上的对准槽103对齐，即可保证对接保持体110、120正确地安装到外壳100中。
图11显示外壳100与对接保持体110、120之间的防反装结构。
如图11所示，在图示的实施例中，为了防止对接保持体110、120错误地安装到(反装到)外壳100中，在外壳100与对接保持体110、120之间设计有防止反装的防反装结构。
如图11所示，在图示的实施例中，对接保持体110、120上的第二周向角度定位标记112、122为形成在对接保持体110、120上的切口；在外壳100的内壁上形成有与对接保持体110、120上的切口配合的防反装凸起106。因此，仅当外壳100的防反装凸起106与对接保持体110、120的切口对齐时，对接保持体110、120才能安装到外壳100中。如果外壳100的防反装凸起106与对接保持体110、120的切口不对齐，对接保持体110、120就不能安装到外壳100中，从而能够有效地防止对接保持体110、120被反装到外壳100中。
如图1和图10所示，光纤适配器还可以包括固定卡件150，固定卡件150插装在外壳100上，并卡持在对接保持体110、120的筒状主体123上，以防止对接保持体110、120从外壳100中拉出。
在图示的实施例中，固定卡件150从外壳100的插槽105(参见图1)插入，并且固定卡件150的两个插脚分别插入外壳100的两个插孔104中，从而将卡持在对接保持体110、120的筒状主体123上。
图12显示将弹性卡扣160安装在外壳100上的示意图。图13显示根据本发明的第一实例性的实施例的组装好的光纤适配器的立体示意图。
如图12和图13所示，在图示的实施例中，光纤适配器还可以包括弹性卡扣160，该弹性卡扣160安装在外壳100上，用于将光纤适配器锁定到固定的安装位置。
在图1至图13所示的第一实施例中，对接保持体110、120包括能够相互组合在一起的第一对接保持体110和第二对接保持体120。定位槽111、121包括分别形成在第一对接保持体110和第二对接保持体120的相互配合的端面上的、相互对齐的第一定位槽111和第二定位槽121。第二周向角度定位标记112、122包括分别形成在第一对接保持体110和第二对接保持体120的相互配合的端面上的、相互对齐的第一切口111和第二切口121。
此外，需要进一步指出的是，在某些应用场合下，不需要使插入光纤适配器的光 纤连接器的光纤的插入损耗最小，而是只需要将对准套管130的纵向狭槽131相对于对接保持体110、120被保持在某个指定的周向角度位置(预定的方位)。在这种要求下，也可以通过本发明公开的调节限向元件140将对准套管130调节到预定的周向角度并固定在预定的周向角度处。
第二实施例
图14至图16显示根据本发明的第二实例性的实施例的光纤适配器。
图14显示根据本发明的第二实例性的实施例的光纤适配器的示意图，其中显示对准套筒组件安装到第一对接保持体210中的示意图；图15显示将已经安装有对准套筒组件的第一对接保持体210与第二对接保持体220组装在一起的示意图；和图16显示根据本发明的第二实例性的实施例的组装好的光纤适配器的立体示意图。
如图14至图16所示，在图示的第二实施例中，光纤适配器适于同时互联多对光纤连接器，并且在对接保持体210、220中容纳有多个对准套管230，用于对准多对光纤连接器的插芯。
此外，在图14至图16所示的第二实施例中，光纤适配器适器没有外壳，对接保持体210、220作为光纤适配器适器的安装主体，直接暴露在外部。
在图14至图16所示的第二实施例中，对接保持体210、220包括能够相互组合在一起的第一对接保持体210和第二对接保持体220。第一对接保持体210和第二对接保持体220用于收纳对准套管230以及锁定对接的光纤连接器(未图示)。光纤连接器的插芯适于从光纤适配器的插入端口201、202插入到对准套管230中，使得光纤连接器的光纤纤芯在对准套管230中实现相互对接。
在图14至图16所示的第二实施例中，调节限向元件240适于调节对准套管230相对于对接保持体210、220的周向角度，并且适于相对于对接保持体210、220将对准套管230保持在预定的周向角度处。
在图14至图16所示的第二实施例中，当对准套管230相对于对接保持体210、220被保持在预定的周向角度时，插入到光纤适配器的对准套管230中的一对光纤连接器的光纤的纤芯之间的对准误差最小(插入损耗最小)。这样，可以通过调节和定位对准套管230相对于对接保持体210、220的周向角度来使光纤连接器的插入损耗最小。
下面将借助附图来详细说明前述光纤适配器的各个部件的结构和组装过程。
在图14至图16所示的第二实施例中，调节限向元件240适于套装在对准套管230上，并且在调节限向元件240的内壁上形成有径向凸起，该径向凸起适于插入对准套管230的纵向狭槽231中，使得对准套管230能够随调节限向元件240一起转动，从而能够通过转动调节限向元件240来调节对准套管230相对于对接保持体210、220的周向角度。
在本发明的一个实例性的实施例中，调节限向元件240的径向凸起的厚度可以等 于或稍小于对准套管230的纵向狭槽231的宽度。这样，当调节限向元件240的径向凸起插入对准套管230的纵向狭槽231中时，对准套管230相对于调节限向元件240在周向上就不能转动或者只能在很小的角度范围内转动，例如，只能在±30度的角度范围内转动，优选地，在±20度的角度范围内转动，更优选地，在±10度的角度范围内转动。
在图14至图16所示的第二实施例中，在将对准套管230安装到对接保持体210、220中之前，先通过调节限向元件240将对准套管230调节到能够使光纤连接器的插入损耗最小的最佳的周向角度。
在图14至图16所示的第二实施例中，在已经确定对准套管230相对于对接保持体210的能够使光纤连接器的插入损耗最小的最佳的周向角度时，在调节限向元件240的外表面242上设置第一周向角度定位标记242a，用于标识对准套管230相对于对接保持体210的能够使光纤连接器的插入损耗最小的最佳的周向角度。在图示的实施例中，该第一周向角度定位标记242a应当与对接保持体210、220上设置的第二周向角度定位标记212、222对齐。这样，在将对接保持体210、220安装到对接保持体210、220中时，只需将调节限向元件240上的第一周向角度定位标记242a与对接保持体210、220上的第二周向角度定位标记212、222对齐，即可保证对准套管230相对于对接保持体210、220处于能够使光纤连接器的插入损耗最小的最佳的周向角度。
在图14至图16所示的第二实施例中，调节限向元件240是横截面为多边形的多面棱柱体。在本发明的一个实施例，调节限向元件140可以是横截面为三边形、四边形、五边形、六边形或具有更多个边的多边形的多面棱柱体。在本发明的另一个实施例中，调节限向元件140的横截面可以是正多边形，但不局限于正多边形。在对接保持体210、220上形成有与调节限向元件240的外轮廓对应的定位槽211、221。调节限向元件240适于固定在对接保持体210、220的定位槽211、221中，以便相对于对接保持体210、220将对准套管230保持在能够使光纤连接器的插入损耗最小的最佳的周向角度处。
请注意，本发明不局限于图示的实施例，调节限向元件还可以通过其它方式固定在对接保持体上。例如，在本发明的另一个实例性的实施例中，在调节限向元件上形成有花键，在对接保持体上形成有花键槽；并且调节限向元件上的花键适于固定在对接保持体上的花键槽中，这样，就能够将调节限向元件固定在对接保持体上，从而能够相对于对接保持体将对准套管保持在能够使光纤连接器的插入损耗最小的最佳的周向角度处。
在图14至图16所示的第二实施例中，对接保持体210、220上的第二周向角度定位标记212、222为形成在对接保持体210、220上的切口。
在图14至图16所示的第二实施例中，对接保持体210、220包括能够相互组合在一起的第一对接保持体210和第二对接保持体220。定位槽211、221包括分别形成 在第一对接保持体210和第二对接保持体220的相互配合的端面上的、相互对齐的第一定位槽211和第二定位槽221。第二周向角度定位标记212、222包括分别形成在第一对接保持体210和第二对接保持体220的相互配合的端面上的、相互对齐的第一切口211和第二切口221。
需要进一步指出的是，在某些应用场合下，不需要使插入光纤适配器的光纤连接器的光纤的插入损耗最小，而是只需要将对准套管230的纵向狭槽231相对于对接保持体210、220被保持在某个指定的周向角度位置(预定的方位)。在这种要求下，也可以通过本发明公开的调节限向元件240将对准套管230调节到预定的周向角度并固定在预定的周向角度处。
虽然结合附图对本发明进行了说明，但是附图中公开的实施例旨在对本发明优选实施方式进行示例性说明，而不能理解为对本发明的一种限制。
虽然本总体发明构思的一些实施例已被显示和说明，本领域普通技术人员将理解，在不背离本总体发明构思的原则和精神的情况下，可对这些实施例做出改变，并且各种实施例中所描述的结构在不发生结构或者原理方面的冲突的情况下可以进行自由组合，本发明的范围以权利要求和它们的等同物限定。
应注意，措词“包括”不排除其它元件或步骤，措词“一”或“一个”不排除多个。另外，权利要求的任何元件标号不应理解为限制本发明的范围。

Claims (28)

  1. 一种光纤适配器，包括：
    对接保持体(110、120)；和
    对准套管(130)，容纳在所述对接保持体(110、120)中，
    其中，光纤连接器的插芯适于从所述光纤适配器的插入端口(101、102)插入到所述对准套管(130)中，
    其特征在于：
    所述光纤适配器还包括调节限向元件(140)，所述调节限向元件(140)适于调节所述对准套管(130)相对于所述对接保持体(110、120)的周向角度，并且适于相对于所述对接保持体(110、120)将所述对准套管(130)保持在预定的周向角度处。
  2. 根据权利要求1所述的光纤适配器，其特征在于：
    当所述对准套管(130)相对于所述对接保持体(110、120)被保持在所述预定的周向角度时，插入到所述光纤适配器的对准套管(130)中的一对光纤连接器的光纤的纤芯之间的对准误差最小。
  3. 根据权利要求1所述的光纤适配器，其特征在于：
    当所述对准套管(130)相对于所述对接保持体(110、120)被保持在所述预定的周向角度时，所述对准套管(130)的纵向狭槽(131)处于预定的方位。
  4. 根据权利要求2或3所述的光纤适配器，其特征在于：
    所述调节限向元件(140)适于套装在所述对准套管(130)上，并且在所述调节限向元件(140)的内壁上形成有径向凸起(141)，所述径向凸起(141)适于插入所述对准套管(130)的纵向狭槽(131)中，使得所述对准套管(130)能够随所述调节限向元件(140)一起转动，从而能够通过转动所述调节限向元件(140)来调节所述对准套管(130)相对于所述对接保持体(110、120)的周向角度。
  5. 根据权利要求4所述的光纤适配器，其特征在于：
    当所述调节限向元件(140)的径向凸起(141)插入所述对准套管(130)的纵向狭槽(131)中时，所述对准套管(130)相对于所述调节限向元件(140)在周向上不能转动。
  6. 根据权利要求4所述的光纤适配器，其特征在于：
    当所述调节限向元件(140)的径向凸起(141)插入所述对准套管(130)的纵向狭槽(131)中时，所述对准套管(130)相对于所述调节限向元件(140)在周向上只能在±30度的角度范围内转动。
  7. 根据权利要求4所述的光纤适配器，其特征在于：
    当所述调节限向元件(140)的径向凸起(141)插入所述对准套管(130)的纵向狭槽(131)中时，所述对准套管(130)相对于所述调节限向元件(140)在周向上只能在±20度的角度范围内转动。
  8. 根据权利要求4所述的光纤适配器，其特征在于：
    当所述调节限向元件(140)的径向凸起(141)插入所述对准套管(130)的纵向狭槽(131)中时，所述对准套管(130)相对于所述调节限向元件(140)在周向上只能在±10度的角度范围内转动。
  9. 根据权利要求4所述的光纤适配器，其特征在于：
    所述调节限向元件(140)是横截面为多边形的多面棱柱体；
    在所述对接保持体(110、120)上形成有与所述调节限向元件(140)的外轮廓对应的定位槽(111、121)；并且
    所述调节限向元件(140)适于固定在所述对接保持体(110、120)的定位槽(111、121)中，以便相对于所述对接保持体(110、120)将所述对准套管(130)保持在所述预定的周向角度处。
  10. 根据权利要求4所述的光纤适配器，其特征在于：
    在所述调节限向元件(140)上形成有花键，在所述对接保持体(110、120)上形成有花键槽；并且
    所述调节限向元件(140)上的花键适于固定在所述对接保持体(110、120)上的花键槽中，以便相对于所述对接保持体(110、120)将所述对准套管(130)保持在所述预定的周向角度处。
  11. 根据权利要求9或10所述的光纤适配器，其特征在于：
    在所述调节限向元件(140)的外表面(142)上设置有第一周向角度定位标记(142a)，并且在所述对接保持体(110、120)上设置有第二周向角度定位标记(112、122)；并且
    当所述调节限向元件(140)将所述对准套管(130)调节到所述预定的周向角度时，所述调节限向元件(140)的第一周向角度定位标记(142a)与所述对接保持体(110、120)的第二周向角度定位标记(112、122)对齐。
  12. 根据权利要求11所述的光纤适配器，其特征在于：
    所述光纤适配器还包括外壳(100)，所述对接保持体(110、120)安装在所述外壳(100)中；并且
    在所述外壳(100)上设置有与所述光纤连接器上的滑块配合的对准槽(103)，用于确保所述光纤连接器以正确的方位插入所述光纤适配器中。
  13. 根据权利要求12所述的光纤适配器，其特征在于：
    当所述调节限向元件(140)将所述对准套管(130)保持在所述预定的周向角度时，所述第一周向角度定位标记(142a)和所述第二周向角度定位标记(112、122)与所述外壳(100)上的对准槽(103)对齐。
  14. 根据权利要求13所述的光纤适配器，其特征在于：
    所述对接保持体(110、120)上的第二周向角度定位标记(112、122)为形成在所述对接保持体(110、120)上的切口；
    在所述外壳(100)的内壁上形成有与所述对接保持体(110、120)上的所述切口配合的防反装凸起(106)；并且
    仅当所述外壳(100)的防反装凸起(106)与所述对接保持体(110、120)的切口对齐时，所述对接保持体(110、120)才能安装到所述外壳(100)中。
  15. 根据权利要求12所述的光纤适配器，其特征在于：
    所述光纤适配器还包括固定卡件(150)，所述固定卡件(150)插装在所述外壳(100)上，并卡持在所述对接保持体(110、120)的筒状主体(123)上，以防止所述对接保持体(110、120)从所述外壳(100)中拉出。
  16. 根据权利要求12所述的光纤适配器，其特征在于：
    所述光纤适配器还包括弹性卡扣(160)，所述弹性卡扣(160)安装在所述外壳(100)上，用于将所述光纤适配器锁定到固定的安装位置。
  17. 根据权利要求9所述的光纤适配器，其特征在于：
    所述对接保持体(110、120)包括能够相互组合在一起的第一对接保持体(110)和第二对接保持体(120)。
  18. 根据权利要求17所述的光纤适配器，其特征在于：
    所述定位槽(111、121)包括分别形成在所述第一对接保持体(110)和所述第二对接保持体(120)的相互配合的端面上的、相互对齐的第一定位槽(111)和第二定位槽(121)。
  19. 根据权利要求18所述的光纤适配器，其特征在于：
    所述第二周向角度定位标记(112、122)包括分别形成在所述第一对接保持体(110)和所述第二对接保持体(120)的相互配合的端面上的、相互对齐的第一切口(111)和第二切口(121)。
  20. 根据权利要求1所述的光纤适配器，其特征在于：
    所述光纤适配器适于同时互联一对或多对光纤连接器，并且在所述对接保持体(110、120；210、220)中容纳有一个或多个对准套管(130；230)，用于对准一对或多对光纤连接器的插芯。
  21. 一种对准套管组件，其特征在于，包括：
    对准套管(130)，适于容纳在光纤适配器的对接保持体(110、120)中；和
    调节限向元件(140)，适于调节所述对准套管(130)相对于所述对接保持体(110、120)的周向角度，并且适于相对于所述对接保持体(110、120)将所述对准套管(130)保持在预定的周向角度处。
  22. 根据权利要求21所述的对准套管组件，其特征在于：
    所述调节限向元件(140)适于套装在所述对准套管(130)上，并且在所述调节限向元件(140)的内壁上形成有径向凸起(141)，所述径向凸起(141)适于插入所述对准套管(130)的纵向狭槽(131)中，使得所述对准套管(130)能够随所述调节限向元件(140)一起转动，从而能够通过转动所述调节限向元件(140)来调节所述对准套管(130)相对于所述对接保持体(110、120)的周向角度。
  23. 根据权利要求22所述的对准套管组件，其特征在于：
    当所述调节限向元件(140)的径向凸起(141)插入所述对准套管(130)的纵向狭槽(131)中时，所述对准套管(130)相对于所述调节限向元件(140)在周向上不能转动。
  24. 根据权利要求22所述的对准套管组件，其特征在于：
    当所述调节限向元件(140)的径向凸起(141)插入所述对准套管(130)的纵向狭槽(131)中时，所述对准套管(130)相对于所述调节限向元件(140)在周向上只能在±30度的角度范围内转动。
  25. 根据权利要求22所述的对准套管组件，其特征在于：
    当所述调节限向元件(140)的径向凸起(141)插入所述对准套管(130)的纵向狭槽(131)中时，所述对准套管(130)相对于所述调节限向元件(140)在周向上只能在±20度的角度范围内转动。
  26. 根据权利要求22所述的对准套管组件，其特征在于：
    当所述调节限向元件(140)的径向凸起(141)插入所述对准套管(130)的纵向狭槽(131)中时，所述对准套管(130)相对于所述调节限向元件(140)在周向上只能在±10度的角度范围内转动。
  27. 根据权利要求23-26中任一项所述的对准套管组件，其特征在于：所述调节限向元件(140)是横截面为多边形的多面棱柱体。
  28. 根据权利要求27所述的对准套管组件，其特征在于：
    在所述调节限向元件(140)的外表面(142)上设置有第一周向角度定位标记(142a)，用于标识所述对准套管(130)相对于所述对接保持体(110、120)的所述预定的周向角度。
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MX2017014377A MX2017014377A (es) 2015-05-15 2016-05-13 Montaje de manguito de alineacion y adaptador de fibra optica.
EP16795850.3A EP3296785A4 (en) 2015-05-15 2016-05-13 ALIGNMENT SLEEVE ASSEMBLY AND OPTICAL FIBER ADAPTER
JP2017559592A JP2018518704A (ja) 2015-05-15 2016-05-13 アラインメントスリーブアセンブリ及び光ファイバーアダプター
US15/574,389 US10302874B2 (en) 2015-05-15 2016-05-13 Alignment sleeve assembly and fiber optic adapter
AU2016263337A AU2016263337A1 (en) 2015-05-15 2016-05-13 Alignment sleeve assembly and optical fibre adapter
US16/419,372 US20200142137A1 (en) 2015-05-15 2019-05-22 Alignment sleeve assembly and fiber optic adapter

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US20180143384A1 (en) 2018-05-24
JP2018518704A (ja) 2018-07-12
US10302874B2 (en) 2019-05-28
EP3296785A4 (en) 2019-05-29
MX2017014377A (es) 2018-08-15
US20200142137A1 (en) 2020-05-07
EP3296785A1 (en) 2018-03-21
AU2016263337A1 (en) 2018-01-04

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