WO2015191024A1 - Connecteurs à profil réduit, adaptateurs et ensembles de connexion associés - Google Patents

Connecteurs à profil réduit, adaptateurs et ensembles de connexion associés Download PDF

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Publication number
WO2015191024A1
WO2015191024A1 PCT/US2014/041500 US2014041500W WO2015191024A1 WO 2015191024 A1 WO2015191024 A1 WO 2015191024A1 US 2014041500 W US2014041500 W US 2014041500W WO 2015191024 A1 WO2015191024 A1 WO 2015191024A1
Authority
WO
WIPO (PCT)
Prior art keywords
ferrule
adapter
reduced
connector
connection assembly
Prior art date
Application number
PCT/US2014/041500
Other languages
English (en)
Inventor
Kazuyoshi Takano
Kenji Iizumi
Original Assignee
Senko Advanced Components, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Senko Advanced Components, Inc. filed Critical Senko Advanced Components, Inc.
Priority to PCT/US2014/041500 priority Critical patent/WO2015191024A1/fr
Priority to CN202111041959.6A priority patent/CN113721326A/zh
Priority to CN202010137344.2A priority patent/CN111239918A/zh
Priority to CN202010147993.0A priority patent/CN111239919A/zh
Priority to CN201480049720.5A priority patent/CN105518503A/zh
Priority to TW103120197A priority patent/TWI690125B/zh
Publication of WO2015191024A1 publication Critical patent/WO2015191024A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—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
    • G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type

Definitions

  • the described technology generally relates to components for connecting data transmission elements and, more specifically, to connectors, adapters, and connection assemblies formed therefrom that are configured to have a reduced profile and/or a reduced quantity of parts in comparison to conventional connection components while providing a secure connection between data transmission elements, such as cable segments, equipment, and/or devices.
  • optical fibers are extremely small. For example, even with protective coatings, optical fibers may be only about 250 microns in diameter (only about 4 times the diameter of a human hair). As such, hundreds of fibers can be installed in cables that will take up relatively little space. However, terminating these fibers with connectors greatly increases the space required to connect cable segments and communication devices. Although multiple fibers may be arranged within a single connector, the resulting connection component may still increase the space used by the optical fibers by 20 to 50 fold. For example, multi-fiber connectors such as those using multi-fiber push-on/pull-off (MPO) technology may connect 12 or 24 fibers.
  • MPO multi-fiber push-on/pull-off
  • a typical MPO connector may have a length of about 30 millimeters to 50 millimeters and a width of about 10 millimeters to 15 millimeters. Multiplying these dimensions by the hundreds of connections in a typical data center results in a significant amount of space devoted to these cable connections. In order to cost-effectively increase data transmission capacity and speed, data centers must increase the number of fiber optic cables and, therefore, cable connections within existing space.
  • a reduced-profile connection assembly may include an adapter, a ferrule having a connection side, and a reduced-profile clip fixedly arranged within the adapter, the reduced-profile clip having hooks configured to engage a portion of the ferrule opposite the connection side to prevent movement of the ferrule within the adapter.
  • a reduced-profile connection assembly may include a ferrule having a connection end, a connector including an inner housing having the ferrule fixedly arranged therein at a first end and flanges extending from a second end opposite the first end and an ejector housing disposed around the inner housing and configured to slide along the inner housing between a locked position and an unlocked position, and an adapter having a clip fixedly arranged therein, the clip having hooks configured to engage protrusions extending from an outer surface of the inner housing to prevent movement of the inner housing within the adapter, wherein the ejector housing interfaces with the clip in the locked position to prevent disengagement of the hooks from the protrusions.
  • a reduced-profile connection assembly may include a ferrule, a connector having the ferrule fixedly arranged therein and comprising at least one adapter latch having at least one adapter latch projection, and an adapter having at least on recess, the at least one recess configured to engage the adapter latch projection when the connector is locked in the adapter to prevent movement of the connector within the adapter.
  • a reduced-profile connection assembly may include a ferrule, a connector having the ferrule fixedly arranged therein and comprising at least one adapter latch having at least one adapter latch projection, and an adapter having a clip fixedly arranged therein, the clip having a recess configured to engage the adapter latch projection when the connector is locked in the adapter to prevent movement of the connector within the adapter.
  • FIG. 1 depicts an illustrative conventional multiple-fiber push-on/pull-off (MPO) type multi-fiber connection assembly.
  • MPO multiple-fiber push-on/pull-off
  • FIGS. 2A-2C depict an illustrative connector of a conventional MPO connection assembly.
  • FIG. 3 depicts a cross-sectional view of a connector arranged within an assembly.
  • FIGS. 4A-4E depict illustrative reduced-profile connection components according to a ferrule clip embodiment.
  • FIGS. 5A-5F depict reduced-profile connection components according to a dual-housing embodiment.
  • FIGS. 6A-6D depict illustrative reduced-profile connection components according to a first resilient latch embodiment.
  • FIGS. 7A-7J depict illustrative reduced-profile connection components according to a second resilient latch embodiment.
  • FIGS. 8A-8E depict illustrative reduced-profile connection components according to a third resilient latch embodiment.
  • the described technology generally relates to components configured to connect data transmission elements, such as cable segments, communication equipment, networking devices, and computing devices.
  • the data transmission elements may be connected using reduced-profile connection components, including, without limitation, connectors, ferrules, adapters, and connection assemblies formed therefrom.
  • the reduced-profile connection components may be configured to require fewer elements and/or less space than conventional connection components.
  • a reduced profile connection component may be smaller in at least one dimension in comparison to a corresponding conventional connection component.
  • the reduced- profile connection components and/or portions thereof may be used with existing
  • some embodiments may include a reduced-profile connector configured to provide a secure connection using a conventional adapter.
  • the reduced-profile connection assemblies and portions thereof may be made from various resilient materials, such as plastics, polymers, rubber, silicon-based materials, and any combination thereof.
  • a non- limiting example of a technological advantage is that reduced-profile connection components and connections formed using the reduced-profile connection components require less space, for example, on a connection interface of a device in a data room. In this manner, an increased number of connections may be formed in a smaller area.
  • Another non-limiting example of a technological advantage is that reduced-profile connection components may generally require fewer elements and/or materials than corresponding conventional connection components. This technological advantage may operate, among other things, to reduce the effort and/or cost associated with assembling the connection component.
  • the reduced-profile connection components are easier to manipulate, such as establishing and/or removing a connection (for instance, "plugging in”/ "unplugging" a component) than corresponding conventional connection components.
  • the data transmission elements may include fiber optic data transmission elements.
  • the reduced-profile connection components may include components configured to provide a secure connection for fiber optic data transmission elements.
  • the reduced-profile connection components may be configured to implement various types of fiber optic connection components, including multiple-fiber (or multi-fiber) connection components .
  • Non-limiting examples of multi-fiber connection components include mechanical transfer (MT), multiple- fiber push-on/pull-off (MPO), and multi-fiber MTP® connectors ("MTP").
  • MT mechanical transfer
  • MPO multiple- fiber push-on/pull-off
  • MTP multi-fiber MTP® connectors
  • fiber optic connection components, and MPO-compatible components in particular are used as examples herein, embodiments are not so limited as any type of data transmission medium and associated components capable of operating according to some embodiments are contemplated herein.
  • FIG. 1 depicts an illustrative conventional MPO type multi-fiber connection assembly (an "MPO connection assembly").
  • an MPO connection assembly 100 may include connectors 105, 110 and a corresponding optical fiber adapter ("adapter") 115.
  • the connectors 105, 110 may be designated as a male connector 105, which has guide pins or "pins” 120, and a female connector 110, which has pin receptacles, guide pin holes, or “holes” 140.
  • the guide pins 120 may be arranged within a male ferrule 130 on a connection side thereof and the guide pin holes 140 may be arranged within a female ferrule 150 on a connection side thereof.
  • the ferrules 130, 150 may be formed from plastic or other polymer materials.
  • the ferrules 130, 150 may be configured as MT type ferrules.
  • the connectors 105, 110 may be coupled with each other through the adapter 115 such that the guide pins 120 can be inserted into the guide pin holes 140 and the face of the male ferrule 130 will be in contact with the face of the female ferrule 150, connecting the ends of the optical fibers (or "ribbon") 135 arranged within each respective ferrule.
  • the optical fibers 135 may be arranged between the guide pins 120 on the male ferrule 130 and between the guide pin holes 140 on the female ferrule 150 such that the ends of the optical fibers will line up and form a continuous our substantially continuous fiber optic connection.
  • the ferrules 130, 150 may include various numbers of optical fibers 135, such as 1, 2, 4, 8, 12, 24, or 72 optical fibers.
  • hooks 160 disposed on a clip (an "adapter clip") arranged within the adapter 115 can hook on recesses 125 of the connector 105 and recesses 145 of the connector 110 to support and maintain the connection of optical fibers 135 between the ferrules 130, 150.
  • the guide pins 120 and the guide pin holes 140 operate to line up the ends of the optical fibers 135 on the faces of the ferrules 130, 150 and the adapter 115 operates to provide a compression force on the ferrules configured to maintain sufficient contact therebetween to support a connection between the opposing optical fibers.
  • FIGS. 2A-2C depict an illustrative connector of a conventional MPO connection assembly.
  • a connector 105 may include an ejector housing 205 slidably disposed about a front housing 210 connected to a boot 215.
  • a ferrule 130 having a pin holder 235 (collectively, may be referred to as a "ferrule” herein) may be arranged within the front housing 210.
  • a male connector 105 including a male ferrule 130 is depicted in FIGS. 2A-2C, the illustrative connector depicted therein may be configured the same or substantially similar using a female connector 110 including a female ferrule 150.
  • FIG. 1 depicts the same or substantially similar using a female connector 110 including a female ferrule 150.
  • FIG. 2B depicts an expanded (or "exploded") view of the connector 105.
  • the connector may include a spring 225 configured to provide a force against the ferrule 130 in a direction toward the front housing 210 and away from the boot 215.
  • the spring 225 may be arranged within a spring push (or "back post") 220 configured to interface with the boot 215.
  • FIG. 2C depicts an expanded view of the ejector housing 205 and the front housing 210 showing the springs 230 arranged therebetween.
  • the springs 230 may operate to provide a force against the ejector housing 205 to push the ejector housing toward the front of the front housing 210 where the ferrule projects from the front housing and away from the boot 215.
  • the connector 105 may be inserted (or plugged) into an adapter 115 by pushing the connector, for example, using the boot, into the adapter until the hooks 160 in the adapter hook (or "snap") on the recesses 125 of the connector.
  • the springs 230 may operate to maintain the ejector housing 205 in the forward (or "locked") position to retain the hooks 160 in the recesses 125 to preserve a secure connection.
  • the connector may be removed (or unplugged) from the adapter by pulling on the ejector housing 205 in a direction away from the adapter.
  • the ejector housing 205 As the ejector housing 205 is pulled in a direction away from the adapter 115, the ejector housing can slide over the front housing 210 in a direction away from the adapter to remove the hooks 160 from the recesses 125, thereby disconnecting the connector 105.
  • conventional MPO connectors 105 require multiple parts. For example, not including the ferrule 130 or components thereof, the connector 105 may require about 7 parts, including the ejector housing 205, the front housing 210, the boot 215, the spring push 220, the spring 225, and the springs 230. All of the components of the connector 105 require time, material, and other resources and/or costs to manufacture and assemble. In addition, the multiple components required for the connector 105 require the connector and connection assembly 100 to have certain minimum dimensions and, therefore, an overall profile. For example, a conventional connector 105 may be about 30 millimeters to about 50 millimeters long and about 12 millimeters to about 20 millimeters wide.
  • plugging in the connector 105 to the adapter 115 requires a sufficient pushing force, generally from the boot 215, while unplugging the connector requires a relatively large pulling force on the ejector housing 205. Accordingly, manipulating the components of the connection assembly 105, such as plugging in/unplugging the connector 105, is inefficient and challenging within the limited space around racks and modules within a typical data room. Moreover, assembling the connector 105 components, such as the housings 205, 210 and the springs 230 and the spring push 220 and the spring 225, is time consuming, inefficient, and consumes valuable resources that may otherwise be dedicated to data room maintenance.
  • FIG. 3 depicts a cross-sectional view of a connector arranged within an assembly.
  • the hooks 160 arranged on the clip 310 may spread apart and be pushed over projections 170 on the outer surface of the front housing 210 to become seated in the recess 125.
  • the springs 230 push the ejector housing 205 over and/or against the hooks 160 to prevent the hooks from spreading apart and moving over the projections 170, thereby maintaining the hooks within the recesses 125 and preventing removal of the connector 105 from the adapter.
  • the ejector housing 205 In order to remove the connector 105 from the adapter 115, the ejector housing 205 must be pulled in a direction away from the adapter and toward the boot 215. The ejector housing 205 must be pulled with sufficient force to overcome the tension provided by the springs 230 in order to allow the ejector housing to slide over the front housing 210 and out of the adapter 115, uncovering the hooks 160. A continued force on the ejector housing 205 away from the adapter 115 causes the connector 105 to move in a direction away from the adapter, spreading apart the hooks 160, which slide over the projections 170 and free the connector 105 from the adapter.
  • FIGS. 4A-4E depict illustrative reduced-profile connection components according to a ferrule clip embodiment.
  • a reduced-profile connection assembly may include a clip 405 (a "ferrule clip” or “reduced profile clip") arranged within an adapter 425 and configured to hold a ferrule 130 therein.
  • the clip 405 may include hooks 410 configured to maintain the ferrule 130 within the adapter 425, for example, by engaging with the ferrule 130 and/or a pin holder 420 on a side opposite a connection side or surface of the ferrule.
  • the ferrule 130 may not include a pin holder 420.
  • a spacer (not shown) may be arranged within the clip 405 to engage the hooks 410 in a manner similar to the pin holder 420.
  • the hooks 410 may be configured to support and maintain a connection between the ferrule 130 and a corresponding ferrule (not shown) within the adapter similar to the functionality provided by the spring 225 and the spring push 220 in a conventional connection assembly.
  • the clip 405 may be arranged within conventional components, such as a conventional adapter 425.
  • the reduced profile connection assembly may include an MT ferrule 130 and an MPO adapter 425.
  • the adapter 425 may include a reduced-profile component portion 435 and a conventional component portion 440.
  • the reduced-profile component portion 435 may be configured to engage reduced-profile connection components, such as a ferrule 130 that is not arranged within or in association with conventional connection components, such as an ejector housing 205, a front housing 210, springs 230, spring 225, or the like.
  • the conventional component portion 440 may be configured to engage conventional connection components, such as MT, MPO, and/or MTP.
  • reduced-profile connection components may be configured to operate with existing data transmission equipment, devices, connection assemblies, and/or the like.
  • the adapter 425 may include a clip 430 for a second ferrule (not shown), such as a female ferrule corresponding with the male ferrule 130.
  • Inserting the ferrule 130 within the clip 405 may connect the ferrule with the corresponding ferrule disposed within the clip 430.
  • the hooks 410 may be configured to hold the ferrule 130 within the adapter 425 and to maintain the connection with the corresponding ferrule located in the clip 430.
  • the adapter 425 may include an external portion 435 that may be located external to a communication device or structure (for instance, a wall) and an internal portion 440 that may be located internal to the communication device or structure.
  • a communication device or structure for instance, a wall
  • an internal portion 440 that may be located internal to the communication device or structure.
  • communication devices include computing devices, servers, racks, switches, hubs, cabling, outlets, network testing equipment, or the like.
  • a first type of ferrule (for example, a female ferrule (not shown)) may be arranged within the internal portion 440 and a second type of ferrule (for example, a male ferrule 130) may be installed (or plugged) into the external portion 435 to form a connection with the first type of ferrule.
  • a second type of ferrule for example, a male ferrule 130
  • FIG. 4E depicts an illustrative ferrule installation device according to some embodiments.
  • a ferrule installation device 445 may be used to install the ferrule 130 into the clip 410 of the adapter.
  • the ferrule installation device 445 may include a lever 460 that may be pressed (for instance, pushed toward the body of the ferrule installation device) to raise a hook portion 455 thereof.
  • the ferrule installation device 445 may grasp the ferrule 430 by raising the hook portion 455, inserting the ferrule into a frame portion 470 and releasing the lever 460 to position the hook portion 460 against or within a portion of the ferrule, such as within a recess 565 disposed within the ferrule.
  • the frame portion 470 may engage the hooks 410 to spread them apart and allow the ferrule to be positioned within the clip 405.
  • the frame portion 470 may engage one or more protrusions 475 arranged on an outer surface of the hooks 410.
  • the lever 460 may be pressed, thereby disengaging the hook portion 455 from the ferrule 130.
  • the hooks 410 close in and engage the ferrule 130.
  • the ferrule installation device 445 may have various dimensions, including a length of about 20 millimeters to about 40 millimeters. In some embodiments, the ferrule installation device 445 may have a length of about 36.5 millimeters.
  • the ferrule clip embodiment depicted in FIGS. 4A-4C does not require a housing, such as ejector housing 205 and front housing 210.
  • the ferrule clip embodiment may be configured to use a clip 405 adapted to hold and support a ferrule 130 without a housing and associated components, such as the spring 225 and the back pusher 220.
  • the hooks 410 of the clip 425 may only extend about 0 millimeters (for example, the clip is entirely or substantially entirely located within the adapter 425), about 1 millimeter, about 2 millimeters, about 3 millimeters, and any value or range between any two of these values (including endpoints) outside of the adapter 425. Accordingly, the ferrule clip embodiment may be used to establish a connection using about 30 millimeters to about 50 millimeters less space than conventional connection components.
  • ferrule 130 depicted in illustrative embodiments herein, such as the ferrule clip embodiment depicted in FIGS. 4A-4C, is a male MT ferrule
  • embodiments are not so limited. Indeed, the ferrule 130 may be configured as any type and/or gender of ferrule capable of operating according to some embodiments. In particular, some
  • embodiments are "gender neutral,” in that either male or female connection components may be used therewith.
  • FIGS. 5A-5F depict reduced-profile connection components according to a dual-housing embodiment.
  • a reduced-profile connector 500 may include an inner housing 510 configured to hold a ferrule 130 in a front portion thereof.
  • An outer housing 505 may be slidably disposed around the inner housing 505.
  • the inner housing 510 may include flanges 515 having projections 535 and recesses 545 formed thereon.
  • FIGS. 5C and 5D depict the connector 505 arranged within an adapter 545 in an unlocked position and a locked position, respectively.
  • the adapter 545 may include a conventional adapter and/or adapter components, such as clips ("adapter clips,” “MPO adapter clips”, or “conventional clips") 520.
  • the adapter 545 may include a conventional MPO adapter and conventional clips 520 configured to receive conventional ferrules, such as MT ferrules 130. In this manner, the reduced-profile connector 500 may be used with conventional connection adapters 545.
  • projections 550 on the inner housing 510 may engage hooks 555 on the clip 520, thereby spreading the hooks apart 555 until the hooks clear the projections and seat within a recess 560.
  • a distal portion 530 of the outer housing 505 may be seated in recesses 540 of the flanges 515.
  • the outer housing 505 may be pushed along the inner housing 510 in a direction toward the adapter.
  • the distal portion 530 may push against the projections 535 of the flanges 515 and may push the flanges 515 inward (for instance, away from the outer housing). As the flanges 515 move inward, the distal portion 530 may slide over the projections 535 and the outer housing 505 may move toward the adapter 545. The flanges 515 may return to the straight position after the distal portion 530 clears the projections 535 and, therefore, the distal portion is no longer pushing on the projections. The projections 535 may prevent the outer housing 505 from sliding away from the adapter 545. When the distal portion 530 has cleared the projections 535, a proximal portion 525 of the outer housing 505 may engage the hooks 555, preventing the hooks from spreading apart and sliding over the projections 550.
  • the inner housing 510 may include ferrule latches (or "bend-in latches") 570 arranged on one or more surfaces thereof.
  • the ferrule latches 570 may be configured to be pushed inward toward the hollow center of the inner housing 510.
  • FIG. 5F a cross-sectional view of the connector illustrates that the outer housing 505 may push the latches 570 inward to engage the ferrule 130 and/or a pin holder 565 connected to the ferrule.
  • the internal surfaces of the inner housing 510 may also include projections 580 or other structures configured to engage the ferrule 530 to prevent the ferrule from moving in a direction opposite the ferrule latches 570.
  • the ferrule latches 570 may be configured to push or otherwise engage the ferrule 130 and/or the pin holder 565 to push the ferrule in a first direction (for example, away from the flanges 515) and/or prevent movement of the ferrule in a second direction (for example, toward the flanges 515), while the projections 580 may be configured to prevent movement of the ferrule in the first direction.
  • the ferrule 130 may be supported and maintained within the inner housing 510 when the outer housing 505 is in a position that pushes down on the ferrule latches 570, for example, when the outer housing is in the locked position.
  • the connector 500 may use only 2 parts, for instance, the outer housing 505 and the inner housing 510, to connect the ferrule 130 to a
  • the connector 505 may have a length of about 20 millimeters to about 30 millimeters. In some embodiments, the connector may have a length of about 26 millimeters. In some embodiments, the connector 505 may have a length of about 20 millimeters, about 22 millimeters, about 24 millimeters, about 26 millimeters, about 28 millimeters, about 30 millimeters, and any value or range between any two of these values (including endpoints). In some embodiments, the connector may have a length of about 26 millimeters.
  • the connector 505 when in the locked position, may extend out of the adapter 545 by about 15 millimeters, about 20 millimeters, about 25 millimeters, about 30 millimeters, and any value or range between any two of these values (including endpoints). In some embodiments, the connector 505 may extend out of the adapter 545 by about 24 millimeters.
  • FIGS. 6A-6D depict illustrative reduced-profile connection components according to a first resilient latch embodiment.
  • a connector 610 may be configured to hold a ferrule 130.
  • the connector 610 may include resilient latches, such as adapter latches 615 and ferrule latches 620.
  • the ferrule latches 620 may be configured to maintain the ferrule 130 within the connector 610.
  • assembly of the connector 610 may include inserting the ferrule 130 into a rear opening 630 of the connector 610 and pushing the ferrule toward the front of the connector (for instance, the end opposite the rear opening).
  • ferrule latches 620 may engage the ferrule latches 620 and push the ferrule latches outward (for instance, away from the ferrule).
  • the ferrule 130 and/or pin holder 625 passes the ferrule latches 620, the latches may no longer being pushed outward. As such, the ferrule latches 620 may retract to their normal position.
  • the ferrule latches 620 may include projections or other structures (not shown) extending inward. These projections may engage the ferrule 130 and/or pin holder 625 to prevent the movement of the ferrule toward the rear opening 630.
  • the connector 610 may also include one or more internal projections or other internal structures configured to project inward toward the hollow cavity of the connector to engage a front portion of the ferrule 130 and/or pin holder 625. These internal projections may prevent movement of the ferrule 130 in a direction toward the front of the connector 610, away from the rear opening 630. In this manner, the ferrule 130 may be held within the connector 610.
  • FIGS. 6C and 6D depict a connector 610 arranged within an adapter 605.
  • the adapter latches 615 may be pressed inward, toward the body of the connector sufficient to allow the first projections 640 to clear inner wall portions 650 of the adapter.
  • the first projections may seat in recesses (or openings) 645 in the inner wall of the adapter 605 and the inner wall portions 650 may seat in recesses 655 of the adapter latches 615.
  • the inner pressing force on the adapter latches 615 may be released and second projections 635 may interface with the inner wall portions 650.
  • the second projections 635 may prevent movement of the connector 610 further into the adapter 605 by engaging the inner wall portions. Accordingly, removal and/or insertion (plugging in) of the connector 610 into the adapter 605 may only require pressing on the adapter latches 615 while pushing the connector into the adapter.
  • the adapter 605 may include a reduced-profile component portion 660 and a conventional component portion 665.
  • the reduced-profile component portion 660 may be configured to engage reduced-profile connection components, such as the connector 610 and/or a ferrule 130 that is not arranged within or in association with conventional connection components, such as an ejector housing 205, a front housing 210, springs 230, spring 225, or the like.
  • the conventional component portion 665 may be configured to engage conventional connection components, such as MT, MPO, and/or MTP.
  • reduced-profile connection components may be configured to operate with existing data transmission equipment, devices, connection assemblies, and/or the like.
  • the connector 610 may use only 1 part (the actual connector 610), not including the ferrule 130. In comparison, conventional connectors may require 7 components to achieve the same functionality.
  • the connector 610 may have a length of about 10 millimeters to about 20 millimeters. In some embodiments, the connector may have a length of about 13 millimeters. In some embodiments, the connector 610 may have a length of about 10 millimeters, about 12 millimeters, about 14 millimeters, about 16 millimeters, about 18 millimeters, about 20 millimeters, and any value or range between any two of these values (including endpoints).
  • FIGS. 7A-7J depict illustrative reduced-profile connection components according to a second resilient latch embodiment.
  • a connector 710 may be configured to hold a ferrule 130, for example, connected to a pin holder 775.
  • the ferrule 130 may include a recess 780 or other similar structure for engaging portions of the inside surface of the main body 760.
  • the connector 710 may include a resilient adapter latch 715 arranged on a top portion thereof.
  • the adapter latch 715 may include a catch projection 725, a catch surface 730, and a recess 735.
  • the connector 710 may include a main body 760 and a rear cover assembly (or “rear cover”) 755 configured to attach to (or “snap") into the main body.
  • the rear cover 755 may include springs 770 and flanges 765.
  • the springs 770 may be configured to press against the flanges 765 to provide a force pushing the flanges outward (for example, away from the springs).
  • the flanges 765 may provide a barrier to the springs 770 such that the force of the springs may be directed toward the ferrule 130 and/or pin holder 775 instead of, without the flanges, in a direction orthogonal to the ferrule.
  • the springs 770 may be formed as one piece with curled ends configured to provide a resilient force.
  • FIGS. 7D and 7E depict the connector 710 and an adapter 705 configured to receive the connector 710.
  • the adapter 705 may include a clip 720 having, as depicted in FIG. 7F, hooks 745, a latch catch 750 formed, and an opening immediately adjacent the latch catch.
  • the connector 710 may be inserted into the adapter 705 by pressing down (for instance, toward the main body 760) the adapter latch 715 while pushing the connector into the opening 740 of the adapter.
  • the connector 710 may engage the clip 720 within the adapter to maintain (or "lock") the connector within the adapter.
  • FIGS. 7G and 7H depict a cross-section of top-down view and a side view, respectively, of a connector 710 installed in an adapter 705.
  • the rear cover 755 may be installed within the main body 760 of the connector 205.
  • the flanges 765 may be pressed inward (toward the springs 770) until the flanges clear a back portion 785 of the main body and become seated on an internal side of the back portion.
  • the springs 770 may engage the ferrule 130 and/or pin holder 775 and push the ferrule in a direction away from the rear cover 755.
  • the adapter 705 may be used for conventional connection components (not shown), such as MPO connectors, and for reduced-profile connectors 710.
  • the hooks 745 of the clip 720 may not engage or may not substantially engage the connector.
  • the hooks 745 may not touch and/or engage the connector 710 in a manner that retains the connector within the adapter 705.
  • the hooks 745 may be used to engage and retain a conventional connector, such as an MPO connector.
  • the connector 710 may be inserted in the adapter 705 by pushing down on the adapter latch 715 to allow the catch projection 725 of the adapter latch to clear (to slide under) the latch catch 750 of the clip 720 while pushing the connector through the opening 740.
  • the adapter latch 715 may be released.
  • the resilient nature of the adapter latch 715 may cause the adapter latch to push upward (away from the main body 760).
  • the upper force of the adapter latch 715 may cause the catch projection 725 to engage an inner surface of the latch catch 750, the latch catch to be seated in the recess 735, and/or the catch surface 730 to engage an outer surface of the latch catch.
  • the engagement between the catch projection 725 and the latch catch 750 may prevent the connector 710 from being removed from the adapter 705. Accordingly, removal and/or insertion (plugging in) of the connector 710 into the adapter 705 only requires pressing on the adapter latches 715 while pushing the connector into the adapter.
  • FIG. 71 depicts an internal view of the connector 710 installed within the adapter 705.
  • FIG. 7J depicts a connector 710 in which the pin holder engages a spring element 785 instead of the spring 770.
  • the connector 710 may use only 3 or less parts, not including the ferrule 130.
  • the connector 710 may include the main body 760, the rear cover 755, and/or the spring 770.
  • conventional connectors may require 7 components to achieve the same functionality.
  • the connector 710 may have a length of about 10 millimeters to about 20 millimeters. In some embodiments, the connector may have a length of about 13 millimeters. In some
  • the connector 710 have a length of about 10 millimeters, about 12 millimeters, about 14 millimeters, about 16 millimeters, about 18 millimeters, about 20 millimeters, and any value or range between any two of these values (including endpoints).
  • FIGS. 8A-8E depict illustrative reduced-profile connection components according to a third resilient latch embodiment.
  • a connector 810 may be configured to hold a ferrule 130.
  • the connector 810 may include a resilient adapter latch 815 on a top portion thereof.
  • the adapter latch 815 may include a catch projection 825.
  • FIGS. 8D and 8F depict a cross-section of top-down view and a side view, respectively, of a connector 810 installed in an adapter 805.
  • the adapter 805 may include a clip 720, as depicted in FIG. 7F, having hooks 745 and a latch catch 750 formed thereon.
  • the adapter 705 may be used for conventional connection components (not shown), such as MPO connectors, and for reduced-profile connectors 710.
  • the hooks 745 of the clip 720 may not engage or may not substantially engage the connector. For instance, the hooks 745 may not touch and/or engage the connector 710 in a manner that retains the connector within the adapter 705.
  • the hooks 745 may be used to engage and retain a conventional connector, such as an MPO connector.
  • the connector 810 may include various structures 850, such as projections, ridges, spacers, or the like that are configured to engage the pin holder 745 and/or the rear portion of the ferrule 130 to prevent the ferrule from moving toward the rear portion of the connector 810.
  • the connector 810 may be inserted into the adapter 805 by pressing down (for instance, toward the ferrule 130) the adapter latch 815 while pushing the connector into the opening 840 of the adapter.
  • the connector 810 may engage with the clip 720 within the adapter to maintain (or "lock") the connector within the adapter.
  • the connector 810 may be inserted in the adapter 805 by pushing down on the adapter latch 815 to allow the catch projection 825 of the adapter latch to clear (to slide under) the latch catch 750 of the clip 720 while pushing the connector through the opening 840. When the catch projection 825 has cleared the latch catch 750, the adapter latch 815 may be released.
  • the resilient nature of the adapter latch 815 may cause the adapter latch to push upward (for instance, away from the ferrule 130).
  • the upper force of the adapter latch 815 may cause the catch projection 825 to engage an inner surface of the latch catch 750.
  • the engagement between the catch projection 825 and the latch catch 750 may prevent the connector 810 from being removed from the adapter 805. Accordingly, removal and/or insertion (plugging in) of the connector 810 into the adapter 805 only requires pressing on the adapter latches 815.
  • the connector 810 may use only 2 or less parts, not including the ferrule 130.
  • the connector 810 may include a main body and a rear cover. In comparison, conventional connectors may require 7 components to achieve the same functionality.
  • the connector 810 may have a length of about 10 millimeters to about 20 millimeters. In some embodiments, the connector may have a length of about 13 millimeters. In some embodiments, the connector 810 have a length of about 10 millimeters, about 12 millimeters, about 14 millimeters, about 16 millimeters, about 18 millimeters, about 20 millimeters, and any value or range between any two of these values (including endpoints).
  • connection elements and/or materials such as crimpers, bands, straps, ferrules, locking materials, fluids, gels, or the like.
  • compositions, methods, and devices can also "consist essentially of or “consist of the various components and steps, and such terminology should be interpreted as defining essentially closed-member groups. It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one" and “one or more” to introduce claim recitations.
  • a range includes each individual member.
  • a group having 1-3 cells refers to groups having 1, 2, or 3 cells.
  • a group having 1-5 cells refers to groups having 1, 2, 3, 4, or 5 cells, and so forth.

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

Abstract

L'invention concerne des composants de connexion à profil réduit. Les composants de connexion à profil réduit sont configurés pour connecter différents éléments de transmission de données, y compris des câbles, des dispositifs réseau et des dispositifs informatiques. Un exemple non limitatif d'un composant de connexion comprend un composant de connexion de fibres optiques, comprenant des connecteurs, des adaptateurs et des ensembles formés à partir de ceux-ci. Dans certains modes de réalisation, les composants de connexion peuvent inclure des composants de connexion à transfert mécanique (MT) et à pousser/tirer multifibres (MPO), tels que des bagues MT et des adaptateurs MPO. Les composants de connexion à profil réduit configurés selon certains modes de réalisation ont un profil plus petit et/ou nécessitent moins de pièces pour réaliser une connexion par rapport aux composants de connexion classiques. Dans certains modes de réalisation, les composants de connexion à profil réduit peuvent être utilisés avec des composants de connexion classiques. Par exemple, un connecteur à profil réduit peut utiliser une bague MT classique pour établir une connexion au sein d'un adaptateur MPO classique.
PCT/US2014/041500 2014-06-09 2014-06-09 Connecteurs à profil réduit, adaptateurs et ensembles de connexion associés WO2015191024A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/US2014/041500 WO2015191024A1 (fr) 2014-06-09 2014-06-09 Connecteurs à profil réduit, adaptateurs et ensembles de connexion associés
CN202111041959.6A CN113721326A (zh) 2014-06-09 2014-06-09 光学纤维连接器
CN202010137344.2A CN111239918A (zh) 2014-06-09 2014-06-09 减小轮廓的连接组件
CN202010147993.0A CN111239919A (zh) 2014-06-09 2014-06-09 减小轮廓的连接组件
CN201480049720.5A CN105518503A (zh) 2014-06-09 2014-06-09 减小轮廓的连接器、适配器及其连接组件
TW103120197A TWI690125B (zh) 2014-06-09 2014-06-11 外形減小資料傳輸元件連接器、配接器及其連接總成

Applications Claiming Priority (1)

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PCT/US2014/041500 WO2015191024A1 (fr) 2014-06-09 2014-06-09 Connecteurs à profil réduit, adaptateurs et ensembles de connexion associés

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