WO2016086881A1 - 用于保护光纤接续头的系统和方法 - Google Patents

用于保护光纤接续头的系统和方法 Download PDF

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Publication number
WO2016086881A1
WO2016086881A1 PCT/CN2015/096315 CN2015096315W WO2016086881A1 WO 2016086881 A1 WO2016086881 A1 WO 2016086881A1 CN 2015096315 W CN2015096315 W CN 2015096315W WO 2016086881 A1 WO2016086881 A1 WO 2016086881A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
protection system
splice
splicing head
protector
Prior art date
Application number
PCT/CN2015/096315
Other languages
English (en)
French (fr)
Inventor
王黎明
张晓东
Original Assignee
泰科电子(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
Application filed by 泰科电子(上海)有限公司 filed Critical 泰科电子(上海)有限公司
Priority to EP15864740.4A priority Critical patent/EP3229051A4/en
Priority to US15/532,885 priority patent/US10845540B2/en
Publication of WO2016086881A1 publication Critical patent/WO2016086881A1/zh
Priority to US17/060,996 priority patent/US11619782B2/en
Priority to US18/170,083 priority patent/US20230280534A1/en
Priority to US18/599,699 priority patent/US20240288634A1/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
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2558—Reinforcement of splice joint
    • 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
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
    • 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
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3846—Details of mounting fibres in ferrules; Assembly methods; Manufacture with fibre stubs
    • 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 invention relates to a fiber optic connector and a method of manufacturing the same.
  • the present invention relates to the protection of the position of the splice head within the fiber optic connector.
  • Fiber optic communication systems are becoming popular, in part because service providers want to provide high bandwidth communication capabilities (eg, data and voice) to customers.
  • Fiber optic communication systems use fiber optic cable networks to transmit large volumes of data and voice signals over a relatively long range of distances.
  • Fiber optic connectors are an important part of most fiber optic communication systems. The fiber optic connector allows two fibers to be optically connected and disconnected quickly.
  • a typical fiber optic connector includes a ferrule or ferrule that is supported at the front end of the connector housing.
  • a spring is used to bias the ferrule in a forward direction relative to the connector housing.
  • the ferrule functions to support the end of at least one optical fiber (in the case of a multi-fiber ferrule, the ends of the plurality of optical fibers are supported).
  • the ferrule has a front end face at which the polished end of the optical fiber is positioned.
  • Fiber optic connectors can include direct terminated fiber optic connectors and splice-on fiber optic connectors.
  • Direct terminating fiber optic connectors have ferrules that directly receive their corresponding fiber optic cables.
  • the splice fiber optic connector includes a ferrule that supports the fiber stub, and the fiber stub is connected to the fiber of the corresponding fiber optic cable.
  • Exemplary publications that disclose a splice fiber optic connector include the patents of PCT International Publication Nos. WO 2013/126429 and WO 2013/077969.
  • the ability to effectively and efficiently protect the position of the splice head is an important design consideration for a splice fiber optic connector. In this regard, it would be beneficial to provide a splicing head protection system that is easy and quick to install, is suitable for small fiber optic constructions, and provides flexible protection for the contiguous head position.
  • the teachings of the present disclosure relate to methods and structures for efficiently and efficiently protecting the position of fiber splices within a fiber optic connector body. Certain aspects of the invention relate to the use of continuous multi-fiber optics The connector protection method and structure of the connector. Other aspects of the invention relate to methods and structures for protecting a multi-fiber splicing head within a connector body of a fiber optic connector having a stable environmental sealing structure. A further aspect of the invention relates to a splice protector having a low profile adapted to protect a row of fiber optic splices (e.g., multiple fusion splice head positions) and to be laterally loaded into the fiber optic connector body.
  • the fiber optic splice head is a fused splice defined between the first set of fibers and the second set of fibers.
  • a splice protector that: a) allows a row of splices between fibers to be effectively laterally loaded in the splice protector; b) has a low profile, Facilitating lateral loading of the splice protector into the connector body; and c) being easily filled with a curable protective material such as an adhesive for filling voids in the splice protector and for stabilizing, protecting and Mechanically strengthen the position of the joint head.
  • the splice protector can have a U-shaped profile when viewed in cross section.
  • the splice protection system includes a splice protector that includes a sleeve that includes a length, a width, and a thickness that are oriented perpendicular to each other.
  • the sleeve includes opposing first and second major sides defined by the length and width of the sleeve.
  • the first major side and the second major side include spaced apart major sidewalls separated by a spaced space extending along the thickness of the sleeve.
  • the sleeve also includes a first longitudinal secondary side and a second longitudinal secondary side that are oppositely defined by the length and thickness of the sleeve.
  • the sleeve also includes first and second lateral minor sides that are oppositely defined by the width and thickness of the sleeve.
  • the first and second lateral minor sides are lateral minor sides of the opening.
  • the width of the sleeve is at least twice the thickness of the sleeve.
  • the splicing head position is disposed inside the sleeve of the splicing head protector.
  • the plurality of first optical fibers and the plurality of second optical fibers respectively extend outside of the first lateral minor side and the second lateral minor side of the sleeve of the splice protector.
  • the splicing head protection system further includes an adhesive disposed within the splicing head protector sleeve to fill a void space within the sleeve of the splicing head protector.
  • the first longitudinal secondary side includes a longitudinal wall that bridges the spacing space between the primary sidewalls and interconnects the primary sidewall, and the first longitudinal secondary side is a closed longitudinal side,
  • the two longitudinal minor sides are the longitudinal sides of the opening.
  • the sleeve is formed from two mating shell members that may be half pieces.
  • Still another aspect of the present invention is directed to a method for protecting a position of a splice head by a splice protector sleeve, the splice head position being defined between the plurality of first optical fibers and the plurality of second optical fibers, the splice protection
  • the sleeve has a length, a width and a thickness.
  • the splicing head protector sleeve includes a first side wall, and the first a second side wall opposite the side wall, a third wall connecting the first side wall and the second side wall, and an open end.
  • the method includes the steps of: (a) positioning the splice head within the splice protector sleeve; (b) injecting an adhesive into the splice protector sleeve, filling the fiber and the splice protector sleeve Interstitial space; and (c) curing adhesive.
  • FIG. 1 illustrates an example of a fiber optic cable connector device suitable for implementing aspects of the present invention.
  • FIG. 2 is an exploded view of the fiber optic cable connector device of FIG. 1.
  • FIG. 3 is a perspective view of a multi-fiber ferrule having fiber stubs suitable for use in the connector device of FIG. 2.
  • Figure 4 shows the multi-fiber ferrule of Figure 3 with a fiber stub that is spliced to the corresponding fiber of the cable.
  • 5A is a perspective view of a splice protector in accordance with aspects of the present invention.
  • Figure 5B shows a side view of the splice protector of Figure 5A.
  • Figure 5C shows an end view of the splice protector of Figure 5A.
  • Figure 5D illustrates the splice protector of Figure 5A, shown aligned with the multi-fiber ferrule of Figure 3.
  • Figure 5E illustrates the splice protector of Figure 5A positioned between the fiber stub of the multi-fiber ferrule of Figure 3 and the splice head defined between the fibers of the respective fiber optic cable.
  • Figures 6A-C illustrate exemplary assembly steps for mounting the splice protector of Figure 5A in a splice position.
  • Figure 7A illustrates an assembled component for facilitating assembly of the splice protector of Figure 5A in a multi-fiber splice position.
  • Figure 7B shows the cover for the assembled component of Figure 7A.
  • FIG. 8A-B show the assembly steps for the subassembly of the interior of the fiber optic cable connector device of Fig. 2.
  • FIG. 9A is a perspective view of another splice protector in accordance with aspects of the present invention.
  • Figure 9B is a perspective view of a portion of the splice protector of Figure 9A.
  • Figure 9C is a cross-sectional view of the splice protector of Figure 9A.
  • Figure 9D shows the fiber stub of Figure 9A positioned in the multi-fiber ferrule of Figure 3 and the corresponding fiber optic cable A splice protector at a joint position defined between the fibers.
  • the teachings of the present disclosure relate to a splicing head reinforcement structure and method of use.
  • the splice reinforcement structure is configured to facilitate efficient loading and protection of the multi-way fused joint position.
  • Some examples of splice head reinforcement structures in accordance with the principles of the present invention have a low profile and are configured to be easily loaded into the interior of a splice-on connector body.
  • a splice head reinforcement structure in accordance with the principles of the present invention has a low profile splice protector sleeve that is used in conjunction with a curable splice head protection material, The curable splicing head protects the fill sleeve and the splicing head that is positioned within the sleeve.
  • the splice protector sleeve has a U-shaped profile when viewed in the longitudinal direction.
  • the splice protector sleeve has an elongated low profile configuration having a first sidewall, a second sidewall opposite the first sidewall, and a third connecting the first sidewall and the second sidewall a wall, a longitudinal side of the opening opposite the third wall, and an open end.
  • the splice protector sleeve includes two or more mating pieces (eg, two halves). Aspects of the invention are applicable to both hardened and non-hardened splice connectors.
  • the fiber optic connector device 1000 includes a hardened multi-fiber optical connector 20 that is optically coupled through a fiber optic adapter 24 to a non-hardened multi-fiber optical connector 22 (eg, an MPO connector).
  • the fiber optic adapter 24 is configured to be mounted to a housing or panel and defines a hardened and sealed port for receiving the hardened multi-fiber optical connector 20 and a non-hardened port for receiving the non-hardened multi-fiber optical connector 22.
  • the hardened multi-fiber optical connector 20 is a splice connector that is coupled to the fiber optic cable 400.
  • Fiber optic cable 400 includes a plurality of optical fibers 120 (e.g., one or more optical fiber ribbons) contained within outer jacket 460.
  • the fiber optic cable 400 also includes a strength member 461 for providing tensile and compression reinforcement to the fiber optic cable 400.
  • the cable jacket 460 has a flat configuration.
  • the fiber optic cable can have other shapes (eg, a round fiber optic cable, a butterfly fiber optic cable, etc.).
  • the strength member 461 can include a stiffener defined by a fiberglass reinforced epoxy. However, it is also possible to use other types of strength members (eg, aramid threads).
  • the hardened multi-fiber optical connector 20 includes a connector body 410 that supports a multi-fiber ferrule 210 at the front end of the connector body 410.
  • the multi-fiber ferrule 210 is spring biased in a forward direction relative to the connector body 410.
  • the hardened multi-fiber optical connector 20 also includes a reinforcing sleeve 26 and a sleeve A housing 28 on the connector body 410.
  • the outer casing 28 includes an elongated member 28a that fits over the reinforcing sleeve 26 and an end cap 28b that fits over the multi-fiber ferrule 210.
  • a seal 30 can be disposed on the elongated member 28a for forming a seal with the fiber optic adapter 24 when the cured multi-fiber optical connector 20 is secured within the hardened port of the fiber optic adapter 24.
  • a hardened fastener 32 is provided for securing the hardened multi-fiber optical connector 20 within the hardened port of the fiber optic adapter 24.
  • the fastener is a twist-to-lock fastener that is shown as a nut having an external thread that is defined within the hardened port of the fiber optic adapter 24 Corresponding internal threaded engagement.
  • other types of twist-lock fasteners such as bayonet fasteners, or internal threaded sleeves may be used.
  • the hardened multi-fiber optical connector 20 also includes a shape memory sleeve 34 (eg, a heat shrink tubing) that provides a seal between the cable jacket 460 and the outer casing 28.
  • the hardened multi-fiber optical connector 20 also includes a strain relief sleeve 36 that provides bend radius protection and strain relief at the interface between the cable 400 and the outer casing 28.
  • the connector body 410 of the hardened multi-fiber optical connector 20 may include a body 411, a first cover portion 412, and a second cover portion 413.
  • the first cover portion 411 and the second cover portion 412 are mounted on the longitudinal side opening 414 on the body 411.
  • the cover portion 412 can include a component that acts as a spring stop.
  • the splicing head position 130 is protected by the splicing head protection system 100, which includes a splicing head protector sleeve 101 (see FIG. 2, FIGS. 6A and 6B) and an adhesive 109 (see FIG. 5B).
  • the splicing head protection system 100 which includes a splicing head protector sleeve 101 (see FIG. 2, FIGS. 6A and 6B) and an adhesive 109 (see FIG. 5B).
  • FIG. 3 shows a multi-fiber ferrule assembly 200.
  • the multi-fiber ferrule assembly 200 includes a ferrule 210 that supports a plurality of fiber stubs having a plurality of fibers 110.
  • the ferrule 210 includes a front end 211 that is positioned opposite the rear end 212.
  • the optical fibers 110 are preferably aligned within the ferrule 210 along a row structure having a width W110.
  • the optical fiber 110 extends through the ferrule 210, and the short terminal end 111 extends outwardly from the rear end 212 of the ferrule 210 and the front end 112 of the optical fiber 110 positioned at the front end 211 of the ferrule 210.
  • the front end 112 of the optical fiber 110 is polished to provide access to the polished front end 112 at the front end 211 of the ferrule 210.
  • FIG. 4 shows a fiber optic cable 400 having an optical fiber 120 that is coupled to the optical fiber 110 of the ferrule assembly 200 at the splicing head position 130.
  • the fibers 110, 120 are typically joined by melting the ends of the bare fibers 110, 120 together using an energy source (eg, an electric arc).
  • an energy source eg, an electric arc
  • the splicing head protection system 100 includes a splicing head protector sleeve 101 having a width W101, a first end 107 and a The two ends 108 define a length L101 and a thickness T101 defined by the first major side and the second major side.
  • the first main side and the second main side include a first main side wall 102 and a second main side wall 103, respectively, the first main side wall 102 and the second main side wall 103 being internally separated by a pitch (ie, thickness) S106 The spaces 106 are separated.
  • the main sidewalls 102, 103 can be substantially rectangular.
  • the splice protector sleeve 101 also has first and second longitudinal minor sides that are positioned oppositely, including a closed secondary wall 104 that connects the first side wall 102 and the second side wall 103, and an open side 105.
  • the splice protector sleeve 101 also includes lateral lateral sides 107, 108 of the opening.
  • the width W101 is greater than the thickness T101.
  • the width W101 may be, for example, at least 3 times larger than the thickness T101, or at least 4 times, at least 5 times, or at least 6 times larger than the thickness T101.
  • the splice protector sleeve 101 has a U-shaped cross section (Fig.
  • the U-shaped cross section may be circular, V-shaped, rectangular or rounded rectangular.
  • the width W101 of the splicing head protector sleeve 101 is preferably greater than the width W110 of the row structure of the optical fiber 110 at the splicing head position 130 such that when the splicing head position 130 is placed within the interior space 106 of the splicing head protector sleeve 101 Inwardly, the first side wall 102 and the second side wall 103 substantially surround the optical fiber 110 along the length of the splice protector sleeve 101.
  • FIGS. 6A-C show the assembly and positioning of the splice protector sleeve 101 about the splice head position 130.
  • the fiber 120 Prior to splicing the fiber 120 of the fiber optic cable 400 to the fiber 110 of the ferrule assembly 200, the fiber 120 is exposed by stripping a length of outer sheath 460 and by removing the protective coating from the fiber 120.
  • the spring 311 and optional spring cap 312 are then placed onto the cable 400 by passing the bare fiber 120 through a central opening in the spring 311 and optional spring cover 312.
  • the optical fibers 110, 120 are preferably joined together by fusion bonding.
  • the adhesive 109 is injected into the interior space 106 of the splice protector sleeve 101 before the bare portion 140 is placed into the splice protector sleeve 101.
  • the bare portion 140 is placed in the splice protector sleeve 101 prior to the injection of the adhesive 109.
  • the adhesive is then injected into the interior space 106 of the splice protector sleeve 101 to fill the void space between the fibers 110, 120 and the splice protector sleeve 101. In this manner, the adhesive encapsulates the fiber and splice position to stabilize and mechanically reinforce the splice position 130.
  • the adhesive is injected into the interior space 106 through the open side (eg, the longitudinal side 105 of the opening).
  • the splice protector sleeve 101 includes at least one port 115 disposed on a wall of the splice protector sleeve 101.
  • one or more ports 115 can be positioned on the first main sidewall 102, the second main sidewall 103, and/or the secondary wall 104.
  • Adhesive 109 can be injected into interior space 106 through port 115.
  • a cover 920 see FIG. 7B
  • a port 925 can be placed over the splice protector sleeve 101, covering at least the longitudinal side 105 of the opening. Adhesive 109 is injected into splice protector sleeve 101 through port 925.
  • the splice protector sleeve 101 and the fiber optic cable 400 having the ferrule assembly 200 can optionally be retained in the mold 910 (see Figure 7A) during assembly.
  • the mold 910 can include a suitably sized slot 911 to accommodate the splice protector sleeve 101.
  • the slot 911 preferably includes one or more open sides that allow the splice protector sleeve 101 to be loaded into the mold 910.
  • the slot 911 can be shaped and dimensioned such that when the splice protector sleeve 101 is placed in the slot 911, the longitudinal side 105 of the opening of the splice protector sleeve 101 is blocked by a portion of the slot 911, having port 115 The side is exposed for injecting the adhesive 109.
  • the splice protector sleeve 101 can be placed in the mold 910 with the open longitudinal side 105 facing up so that the adhesive 109 can be injected through the open side 105.
  • the mold 910 is adapted to receive the cover 920.
  • the mold 910 can include a recess 912 that can be seated in the recess 912 such that when the splice protector sleeve 101 is disposed in the mold 910, the cover 920 encloses the opening of the splice protector sleeve 101
  • the longitudinal side 105 is and the port 925 of the cover 920 is aligned with the longitudinal side 105 of the opening such that the adhesive 109 is injected into the splice protector sleeve 101 through the port 925.
  • Mold 910 also helps to securely hold cover 920 in place during the injection of adhesive 109.
  • the adhesive 109 can be cured after the injection, for example, by UV radiation or by heating.
  • Adhesive 109 can include a UV curable adhesive, a thermosetting adhesive, or other suitable adhesive.
  • the adhesive 109 may include, for example, an epoxy resin or other type of resin (for example, an acrylic resin such as cyanoacrylate, polyester resin, or other suitable resin).
  • the splice protector sleeve 101 and adhesive 109 provide a flexible splice protection system 100 that can be bent without damage.
  • the splice protector sleeve 101 can be made of a polymeric material, for example, made of PC (polycarbonate) or PEI (polyethyleneimine) or any other suitable material.
  • the splice protector sleeve 101 is made of a material that transmits UV light.
  • the adhesive 109 is shown to permanently secure the splice protector sleeve 101 to the fiber optic cable 400, covering the bare portion 140.
  • the spring 311 and the spring cover 312 can slide forward toward the ferrule on the splice protector sleeve 101 to cause the spring cap 312 and the ferrule 210
  • the back end 212 is in contact.
  • the splice protector sleeve 101 is spaced from the ferrule 210.
  • the ferrule 210, the spring 311, the cover 312, and the splice protector sleeve 101 including the splice head position 130 can be loaded into the body 411 (see FIG. 8A) of the connector body 410 through the longitudinal side opening 414.
  • the side opening 414 can then be covered by the first cover portion 412 and the second cover portion 413, and the spring can be held in place by the spring stop member of the cover 412.
  • An adhesive can be used to secure the strength member 461 of the cable 400 to the rear end of the connector body 410.
  • the other external components of the hardened multi-fiber optical connector can then To be assembled on the connector body 410. It will be appreciated that the reinforcing sleeve 26, the elongate member 28a, the fastener 32, the shape memory sleeve 34 and the sleeve 36 can slide over the cable 400 prior to attachment and after assembly of the connector body 410 at the connector body Slide back on 410.
  • FIGS. 9A-9D illustrate an alternate embodiment of a splice protector sleeve 151 in accordance with the principles of the present disclosure.
  • the splice protector sleeve 151 can be constructed from two half-shells 160, 170 that are joined together along the longitudinal minor side.
  • the splice protector sleeve 151 has a length L151 defined by the first end 152 and the second end 153, a width W151, and a thickness T151 defined by the first main side 161 and the second main side 171 (refer to FIG. 9C).
  • the width W151 is greater than the thickness T151.
  • the width W151 may be, for example, at least 2 times larger than the thickness T151, or at least 3 times, at least 4 times, or at least 5 times larger than the thickness T151.
  • the splice protector sleeve 151 also includes an interior space 156 having a spacing S156.
  • the splice protector sleeve 151 also includes lateral minor sides 157, 158 that are positioned at the first end 152 and the second end 153, respectively.
  • the first half of the shell 160 is described herein and is shown in Figure 9B.
  • the second half-shell 170 may have the same or similar (eg, mirror image) structure as the first partial housing 160.
  • the first half of the housing 160 includes a main sidewall 161 that extends from the first end 162 to the second end 163 along the first longitudinal side 164 and the second longitudinal side 165.
  • the first half shell 160 further includes a first secondary wall extension 166 extending from the main side wall 161 along the first longitudinal side 164 and a second secondary wall extension extending from the main side wall 161 along the second longitudinal side 165 167.
  • the first half of the housing 160 can include one or more snap fit components including one or more snap receptacles 168 and one or more snap tabs 169.
  • the snap fit features are adapted to be coupled to corresponding snap fit components on the second half shell 170 to secure the half shells 160, 170 together to form the splice protector sleeve 151.
  • the snap-fit components 168/179 and 169/178 are joined together and the closed seam 180 is along the first and second secondary walls. Extensions 166/176, 167/177 are defined.
  • the splicing head position 130 is placed within the interior space 156 of the splicing head protector sleeve 151, the first and second main side walls 161, 171 and the secondary wall extensions 166/176, 167/177 are protected along the splicing head
  • the sleeve 151 substantially surrounds the optical fiber 110.
  • the splice protector sleeve 151 is spaced from the ferrule 210.
  • the joint position between the plurality of first fibers and the plurality of second fibers may pass through a coating material (eg, an encapsulating material such as an adhesive) in the absence of a permanent outer casing.
  • a coating material eg, an encapsulating material such as an adhesive
  • the material can be a UV curable material.
  • the protective coating can be applied by spraying, injection, overmolding or other techniques.
  • the protective coating material can be injected, sprayed, or otherwise filled into a mold that surrounds the contiguous head position, and the packaging material can Curing is done in the mold and the mold can then be removed from the encapsulating material.
  • the splice head position protected by the encapsulant lacking the housing can be housed within a connector body of a shock-resistant fiber optic connector of the type described above (eg, hardened multi-fiber connector 20) that is connected to the shock-resistant fiber optic
  • the device has a twist-lock fastener for securing the shock-resistant fiber optic connector to a port of a matched shock-resistant fiber optic adapter.
  • the seal can be placed between the shock-resistant fiber optic connector and the shock-resistant fiber optic adapter.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

一种用于保护多路熔融接续头位置的接续头保护系统（100）。接续头保护系统（100）包括接续头保护器。接续头保护器包括套管（101），其具有垂直于彼此定向的长度（L101）、宽度（W101）和厚度（T101）。套管（101）包括由套管（101）的长度（L101）和宽度（W101）限定的相对的第一主侧面和第二主侧面。第一主侧面和第二主侧面包括由沿着套管（101）的厚度（T101）延伸的间隔空间（S106）间隔开的主侧壁（102，103）。套管（101）还包括由套管（101）的长度（L101）和厚度（T101）限定的相对的第一纵向次侧面（104）和第二纵向次侧面（105）。套管（101）还包括由套管（101）的宽度（W101）和厚度（T101）限定的相对的第一和第二横向次侧面（107，108），第一和第二横向次侧面（107，108）是开口的横向次侧面。熔融接续头位置（130）设置在接续头保护器的套管（101）内部，多根第一光纤（110）和多根第二光纤（120）分别在接续头保护器的套管（101）的第一横向次侧面（107）和第二横向次侧面（108）的外侧延伸。接续头保护系统（100)进一步包括粘合剂（109），粘合剂设置在接续头保护器的套管（101）内部以填充在接续头保护器的套管（101）内的空隙空间。

Description

用于保护光纤接续头的系统和方法 技术领域
本发明涉及一种光纤连接器及其制造方法。特别地，本发明涉及光纤连接器内的接续头位置的保护。
背景技术
光纤通信系统正变得流行，部分地因为服务提供商希望提供高带宽通信能力(例如，数据和语音)给客户。光纤通信系统使用光缆网络以在相对长的距离范围内传输大容量的数据和话音信号。光纤连接器是大多数光纤通信系统的重要组成部分。光纤连接器允许两个光纤被迅速地光学连接和断开。
典型的光纤连接器包括被支撑在连接器壳体的前端处的插芯或接口(ferrule)。弹簧用来在相对于连接器壳体的向前方向上偏压插芯。插芯起支撑至少一根光纤的端部(在多光纤插芯的情况下，多根光纤的端部被支撑)的作用。插芯具有前端面，光纤的抛光端定位在所述前端面处。当两个光纤连接器相互连接时，它们各自的插芯的前端面彼此邻接，并且插芯通过它们各自的弹簧的弹簧载荷被压在一起。在光纤连接器被连接的情况下，它们各自的光纤一般同轴地对齐，使得光纤的端面直接地彼此相对。以这种方式，光学信号可通过光纤的对准端面从光纤传输到光纤。
光纤连接器可以包括直接端接式光纤连接器和接续式(splice-on)光纤连接器。直接端接式光纤连接器具有直接接收其对应的光缆的插芯。与此相反，接续式光纤连接器包括支撑光纤短截线的插芯，光纤短截线接续到对应的光缆的光纤。披露接续式光纤连接器的示例性出版物包括PCT国际公开号WO 2013/126429和WO 2013/077969的专利。对于接续式光纤连接器，有效地和高效地保护接续头位置的能力是重要的设计考虑因素。在这方面，将是有益的是提供一种接续头保护系统，该系统容易和快速安装，适合于小型光纤结构，并且对接续头位置提供灵活保护。
发明内容
本公开内容的教导涉及用于有效和高效地保护光纤连接器本体内的光纤接续头位置的方法和结构。本发明的某些方面涉及适合使用接续式多光纤光学 连接器的接续头保护方法和结构。本发明的其它方面涉及用于保护在具有稳定的环境密封结构的光纤连接器的连接器本体内的多光纤接续头的方法和结构。本发明的进一步方面涉及具有低轮廓的接续头保护器，其适于保护一排光纤接续头(例如，多路熔融接续头位置)，并且适合于被横向地装载到光纤连接器本体中。在某些实施例中，光纤接续头是限定在第一组光纤和第二组光纤之间的熔融接续头。另外，本发明的其他方面涉及接续头保护器，该接续头保护器：a)允许将光纤之间的一排接续头有效地侧向装载在该接续头保护器中；b)具有低轮廓，便于将接续头保护器侧向装载到连接器本体中；和c)容易由诸如粘合剂的可固化的保护材料填充，用于填充接续头保护器内的空隙，且用于稳定、保护和机械地加强接续头位置。在一个示例中，接续头保护器在横截面观察时可具有U形轮廓。
本发明的另一个方面涉及一种接续头保护系统，用于保护被限定在多根第一光纤和多根第二光纤之间的熔融接续头位置。接续头保护系统包括：接续头保护器，所述接续头保护器包括套管，所述套管包括垂直于彼此定向的长度、宽度和厚度。套管包括由套管的长度和宽度限定的相反的第一主侧面和第二主侧面。第一主侧面和第二主侧面包括由沿着套管的厚度延伸的间隔空间分开的间隔开的主侧壁。套管还包括由套管的长度和厚度限定的相反地定位的第一纵向次侧面和第二纵向次侧面。套管还包括由套管的宽度和厚度限定的相反地定位的第一和第二横向次侧面。第一和第二横向次侧面是开口的横向次侧面。套管的宽度是套管的厚度的至少两倍。接续头位置设置在接续头保护器的套管内部。所述多根第一光纤和所述多根第二光纤分别地在接续头保护器的套管的第一横向次侧面和第二横向次侧面的外侧延伸。接续头保护系统进一步包括粘合剂，该粘合剂设置在接续头保护器套管内部以填充接续头保护器的套管内的空隙空间。
在一个方面中，第一纵向次侧面包括纵向壁，该纵向壁桥接所述主侧壁之间的间隔空间并互连所述主侧壁，并且第一纵向次侧面是闭合的纵向侧，第二纵向次侧面是开口的纵向侧面。在另一个方面中，套管由可以是半部件的两个配合壳件形成。
本发明的再一个方面涉及一种用于由接续头保护器套管保护接续头位置的方法，所述接续头位置被限定在多根第一光纤和多根第二光纤之间，接续头保护器套管具有长度、宽度和厚度。接续头保护器套管包括第一侧壁、与第一 侧壁相对的第二侧壁、连接第一侧壁和第二侧壁的第三壁、和开口端。所述方法包括下述步骤：(a)将接续头位置在接续头保护器套管内；(b)将粘合剂注入到接续头保护器套管中，填充光纤和接续头保护器套管之间的空隙空间；和(c)固化粘合剂。
各种附加方面将在下面的说明中被阐述。各个方面涉及单独的特征和特征的组合。应当理解的是，前面的一般描述和下面的详细描述都只是示例和说明性的，而不是本文公开的实施例所基于的广泛的发明概念的限制。
附图说明
图1示出适合于实施本发明的多个方面的光缆连接器装置的示例。
图2是图1的光缆连接器装置的分解图。
图3是具有适合于在图2的连接器装置中使用的光纤短截线(stubs)的多光纤插芯(ferrule)的立体图。
图4示出图3的具有光纤短截线的多光纤插芯，所述光纤短截线被接续到光缆的对应的光纤。
图5A是根据本发明的多个方面的接续头保护器的透视图。
图5B示出图5A的接续头保护器的侧视图。
图5C示出图5A的接续头保护器的端视图。
图5D示出图5A的接续头保护器，其被显示为与图3的多光纤插芯对准。
图5E示出定位在图3的多光纤插芯的光纤短截线和相应的光缆的光纤之间限定的接续头位置上的图5A的接续头保护器。
图6A-C显示用于将图5A的接续头保护器安装在接续头位置上的示例性组装步骤。
图7A示出用于便于将图5A的接续头保护器组装在多光纤接续头位置上的组装部件。
图7B示出用于图7A的组装部件的盖。
图8A-B显示用于图2的光缆连接器装置的内部的子组件的组装步骤。
图9A是根据本发明的多个方面的另一个接续头保护器的透视图。
图9B是图9A的接续头保护器的一部分的透视图。
图9C是图9A的接续头保护器的横截面视图。
图9D示出图9A的定位在图3的多光纤插芯的光纤短截线和相应的光缆的 光纤之间限定的接续头位置上的接续头保护器。
具体实施方式
本公开内容的教导涉及接续头加强结构和使用方法。在某些实施例中，接续头加强结构被构造为便于有效装载和保护多路熔融接续头位置。根据本发明的原理的接续头加强结构的一些示例具有低的轮廓且被构造成容易地装载到接续式(splice-on)的连接器本体的内部。在某些实施例中，根据本发明的原理的接续头加强结构具有低轮廓接续头保护器套管，所述低轮廓接续头保护器套管与可固化的接续头保护材料结合使用，所述可固化的接续头保护材料填充套管和封装定位在套管内的接续头。在一些示例中，接续头保护器套管在纵向方向观察时具有U形轮廓。在一些示例中，接续头保护器套管具有细长的低轮廓构造，具有第一侧壁、与第一侧壁相对的第二侧壁、连接第一侧壁和第二侧壁的第三壁、与第三壁相对的开口的纵向侧面、和开口端。在一些实例中，接续头保护器套管包括两个或多个配合件(例如，两半)。本发明的各方面适用于硬化和非硬化的接续式连接器。
图1和图2图示适用于实施本发明的多个方面的示例性光纤连接器装置1000。光纤连接器装置1000包括硬化的多光纤光学连接器20，该多光纤光学连接器20通过光纤适配器24光学地耦合到非硬化的多光纤光学连接器22(例如，MPO连接器)。光纤适配器24被构造成安装到外壳或面板，并且限定用于接收硬化的多光纤光学连接器20的硬化且密封的端口和用于接收非硬化的多光纤光学连接器22的非硬化端口。
参照图2，硬化的多光纤光学连接器20是耦合到光缆400的接续式连接器。光缆400包括包含在外护套460内的多根光纤120(例如，一条或多条光纤带)。光缆400还包括强度构件461，该强度构件用于提供对光缆400的拉伸和压缩加强。如图所示，光缆护套460具有平坦结构。在其他实施例中，光缆可以具有其它形状(例如，圆形光缆、蝴蝶形光缆等)。在某些实施例中，强度构件461可以包括由玻璃纤维增强环氧树脂限定的加强杆。然而，也可能使用其他类型的强度构件(例如，芳族聚酰胺线)。
硬化的多光纤光学连接器20包括连接器本体410，连接器本体410在连接器本体410的前端处支撑多光纤插芯210。多光纤插芯210在相对于连接器本体410的向前方向上被弹簧偏压。硬化的多光纤光学连接器20还包括加强套管26和套 在连接器本体410上的外壳28。外壳28包括套在加强套管26上的细长件28a和套在多光纤插芯210上的端帽28b。密封件30可以被设置在细长件28a上，用于在固化的多光纤光学连接器20被固定在光纤适配器24的硬化端口内时与光纤适配器24形成密封。硬化的紧固件32被设置用于将硬化的多光纤光学连接器20固定在光纤适配器24的硬化端口内。在所描述的实施例中，紧固件是扭锁式(twist-to-lock)紧固件，其示出为具有外部螺纹的螺母，所述外部螺纹与在光纤适配器24的硬化端口内限定的相应的内部螺纹接合。在其他实例中，可以使用其它类型的扭锁式紧固件，如卡口式紧固件，或者也可以使用内螺纹套管。硬化的多光纤光学连接器20还包括形状记忆套管34(例如，热缩管)，其在光缆护套460和外壳28之间提供密封。硬化的多光纤光学连接器20还包括应变消除套管36，其在光缆400和外壳28之间的界面处提供弯曲半径保护和应变释放。
硬化的多光纤光学连接器20的连接器本体410可以包括主体411、第一盖部412和第二盖部413。在所示示例中，第一盖部411和第二盖部412安装在主体411上的纵向侧开口414上。盖部412可以包括用作弹簧止动件的部件。在由插芯210支撑的光纤短截线(stub)110(参见图3和图4)已经在接续头位置130处多路熔融接续到光缆400的光纤120之后，纵向侧开口414允许插芯210被横向地装载到主体411中。在示例中，接续头位置130由接续头保护系统100保护，接续头保护系统100包括接续头保护器套管101(参见图2，图6A和6B)和粘合剂109(参照图5B)。
图3示出多光纤插芯组件200。多光纤插芯组件200包括插芯210，插芯210支撑具有多根光纤110的多根光纤短截线。插芯210包括前端211，前端211与后端212相反地定位。光纤110优选地沿着行结构在插芯210内对齐，光纤110的行结构具有宽度W110。光纤110延伸通过插芯210，短引出端111从插芯210的后端212和光纤110的定位在插芯210的前端211处前端112向外延伸。光纤110的前端112被抛光，在插芯210的前端211处能够访问抛光的前端112。
图4示出了光缆400，光缆400具有在接续头位置130处接续到插芯组件200的光纤110上的光纤120。通常通过使用能量源(例如，电弧)将裸露的光纤110，120的端部熔融在一起而使光纤110，120接续。
光缆400的裸露部分140优选被保护以防止破裂。图5A-5E示出根据本公开的原理的接续头保护系统100的示意图。如图所示，接续头保护系统100包括接续头保护器套管101，接续头保护器套管101具有宽度W101、由第一端107和第 二端108限定的长度L101、以及由第一主侧面和第二主侧面限定的厚度T101。第一主侧面和第二主侧面包括第一主侧壁102和第二主侧壁103，第一主侧壁102和第二主侧壁103分别地由具有间距(即，厚度)S106的内部空间106隔开。主侧壁102，103可以是大致矩形的。接续头保护器套管101还具有相对定位的第一和第二纵向次侧面，包括连接第一侧壁102和第二侧壁103的闭合的次壁104、和开口侧105。接续头保护器套管101还包括开口的横向次侧面107，108。在示例中，宽度W101大于厚度T101。宽度W101可以是例如厚度T101的至少3倍大，或者是厚度T101的至少4倍，至少5倍，或至少6倍大。在所示的示例中，接续头保护器套管101具有U形横截面(图5C)。该U形横截面可以是圆形的、V形的、矩形的或圆角矩形的。接续头保护器套管101的宽度W101优选地比在接续头位置130处的光纤110的行结构的宽度W110大，使得当接续头位置130被放置在接续头保护器套管101的内部空间106内时，第一侧壁102和第二侧壁103基本上沿着接续头保护器套管101的长度包围光纤110。
图6A-C显示围绕接续头位置130组装和定位接续头保护器套管101。在将光缆400的光纤120接续到插芯组件200的光纤110之前，通过剥离一段长度的外护套460和通过从光纤120移除保护涂层而裸露光纤120。，然后通过使裸露的光纤120穿过在弹簧311和可选的弹簧盖312上的中心开口，将弹簧311和可选的弹簧帽312放置到光缆400上。光纤110，120优选地通过熔融接续而接续在一起。
根据一个实施例，在裸露部分140被放置进入接续头保护器套管101之前，粘合剂109被注入到接续头保护器套管101的内部空间106中。在一个替代实施例中，裸露部分140在粘合剂109被注入之前被放置在接续头保护器套管101中。粘合剂然后被注入到接续头保护器套管101的内部空间106中，填充光纤110，120和接续头保护器套管101之间的空隙空间。以这种方式，粘合剂封装光纤和接续头位置，从而稳定和机械地加强接续头位置130。
在一个示例中，粘合剂通过开口侧(例如，开口的纵向侧面105)被注入到内部空间106中。在另一个示例中，接续头保护器套管101包括设置在接续头保护器套管101的壁上的至少一个端口115。例如，一个或多个端口115可以被定位在第一主侧壁102、第二主侧壁103和/或次壁104上。粘合剂109可以通过端口115被注入到内部空间106中。在又一个实例中，包括端口925的盖920(参见图7B)可被放置在接续头保护器套管101上，至少覆盖开口的纵向侧面105。粘合剂109通过端口925被注入到接续头保护器套管101中。
接续头保护器套管101和具有插芯组件200的光纤线缆400在组装过程中可以任选地被保持在模具910(参见图7A)中。模具910可包括合适尺寸的槽911以容纳接续头保护器套管101。槽911优选地包括允许将接续头保护器套管101装载到模具910中的一个或多个开口侧。槽911可以被成形和定尺寸，使得当接续头保护器套管101被放置在槽911中时，接续头保护器套管101的开口的纵向侧面105由槽911的一部分阻塞，使具有端口115的侧面暴露，用于注入粘合剂109。代替地，接续头保护器套管101可以以开口的纵向侧面105面向上的方式被放置在模具910中，以便可通过开口侧面105注入粘合剂109。在一个示例中，模具910适于接收盖920。例如，模具910可包括凹槽912，盖920可以就座在凹槽912中，使得当接续头保护器套管101被设置在模具910中时，盖920封闭接续头保护器套管101的开口的纵向侧面105，并且盖920的端口925与开口的纵向侧面105对齐，使得粘合剂109通过该端口925被注入到接续头保护器套管101中。模具910还有助于在粘合剂109的注入期间将盖920牢固地保持在合适的位置。
粘合剂109在注入以后，例如，可通过UV辐射或通过加热使粘合剂109固化。粘合剂109可包括可UV固化的粘合剂、热固化型粘合剂或其他合适的粘合剂。粘合剂109可包括，例如，环氧树脂或其它类型的树脂(例如，丙烯酸类树脂，如氰基丙烯酸酯、聚酯树脂或其他合适的树脂)。在一个实施例中，接续头保护器套管101和粘合剂109提供柔性接续头保护系统100，该柔性接续头保护系统100可以在不破坏的情况下弯曲。接续头保护器套管101可以由聚合材料制成，例如，由PC(聚碳酸酯)或PEI(聚乙烯亚胺)或任何其他合适的材料制成。在一个实施例中，接续头保护器套管101由透射UV光的材料制成。在示例中，粘合剂109被示出为将接续头保护器套管101永久地固定在光缆400上，覆盖裸露部分140。
在接续头保护器系统100已经被安装在接续头位置上以后，弹簧311和弹簧盖312可在接续头保护器套管101上向前朝向插芯滑动，以使弹簧帽312与插芯210的后端212接触。在所示的示例中，接续头保护器套管101与插芯210隔开。插芯210、弹簧311、盖312和包含接续头位置130的接续头保护器套管101可以通过纵向侧开口414被装载到连接器本体410的主体411(参见图8A)中。侧开口414然后可以由第一盖部412和第二盖部413覆盖，并且弹簧可以由盖412的弹簧止动部件固定在适当位置。粘合剂可以用来将光缆400的强度部件461固定到连接器本体410的后端部。硬化的多光纤光学连接器的其它的外部部件然后可 以被组装在连接器本体410上。可以理解，加强套管26、细长件28a、紧固件32、形状记忆套管34和套管36在接续之前可在光缆400上滑动，并且在连接器本体410的组装之后在连接器本体410上向回滑动。
图9A-9D示出根据本公开内容的原理的接续头保护器套管151的替代实施例。正如图9A所示，接续头保护器套管151可以由两个半壳160，170构成，这两个半壳160，170沿着纵向次侧面连接在一起。接续头保护器套管151具有由第一端152和第二端153限定的长度L151、宽度W151、以及由第一主侧面161和第二主侧面171限定的厚度T151(参照图9C)。在示例中，宽度W151大于厚度T151。宽度W151可以是，例如，厚度T151的至少2倍大，或厚度T151的至少3倍，至少4倍，或至少5倍大。接续头保护器套管151还包括具有间距S156的内部空间156。接续头保护器套管151还包括分别地定位在第一端152和第二端153处的开口的横向次侧面157，158。
第一半壳160在这里被描述并且在图9B中被显示。第二半壳170可以具有与第一半壳体160相同或相似的(例如，镜像)结构。第一半壳160包括沿着第一纵向侧面164和第二纵向侧面165从第一端162延伸至第二端163的主侧壁161。第一半壳160进一步包括沿着第一纵向侧面164从主侧壁161延伸的第一次壁延伸部166，和沿着第二纵向侧面165从主侧壁161延伸的第二次壁延伸部167。第一半壳160可以包括一个或多个卡扣配合部件，包括一个或多个卡扣插孔168和一个或多个卡扣突块169。卡扣配合部件适于与在第二半壳170上的相应的卡扣配合部件连接，以将半壳160，170固定在一起以形成接续头保护器套管151。
当两个半壳160，170处于如图9D所示的组装位置中时，卡扣配合部件168/179和169/178连接在一起，并且闭合的接缝180沿着第一和第二次壁延伸部166/176，167/177被限定。当接续头位置130被放置在接续头保护器套管151的内部空间156内时，第一和第二主侧壁161，171和次壁延伸部166/176，167/177沿着接续头保护器套管151基本上包围光纤110。在所示实施例中，接续头保护器套管151与插芯210间隔开。
在某些示例中，在不存在永久外壳的情况下，所述多根第一光纤和多根第二光纤之间的接续头位置可以通过涂层材料(例如，封装材料，如粘合剂)被保护。该材料可以是可UV固化材料。可以通过喷涂、注射、二次成型(overmolding)或者其它技术涂覆保护涂层。在某些示例中，保护涂层材料可以被注射、喷涂或者以其它方式填充到围绕接续头位置的模具中，封装材料可以 固化在模具内，并且然后可以从封装材料上移除模具。在某些示例中，由缺少壳体的密封剂保护的接续头位置可以被容纳在上述类型的耐震光纤连接器(例如，硬化的多光纤连接器20)的连接器本体内，该耐震光纤连接器具有扭锁式紧固件，该扭锁式紧固件用于将该耐震光纤连接器固定在匹配的耐震光纤适配器的端口中。密封件可以设置在耐震光纤连接器和耐震光纤适配器之间。
虽然已经描述了本发明的某些实施例，但可以存在其它实施例。上面描述的具体特征和动作被公开作为本发明的说明性方面和实施例。在阅读本文的描述以后，在不脱离本发明的精神或权利要求的主题的范围的情况下，各种其它方面、实施例、修改以其等同物可以启示本领域的普通技术人员。
部件列表：
20 硬化的多光纤光学连接器
22 非硬化的多光纤光学连接器
24 光纤适配器
26 加强套管
28 外壳
28a 细长件
28b 盖部件
30 密封件
32 紧固件
34 形状记忆套管
36 应变释放护罩
100 接续头保护系统
101 接续头保护器套管
L101 长度
W101 宽度
T101 厚度
102 第一主侧壁
103 第二主侧壁
104 闭合的次壁
105 开口侧面
106 内部空间
S106 间距
107 第一端
108 第二端
109 粘合剂
110 光纤(短截线)
W110 宽度
115 端口
120 光纤
130 接续头位置
140 裸露部分
151 接续头保护器套管
T151 厚度
W151 宽度
155 端口
156 内部空间
S156 间距
157 第一次侧面
158 第二次侧面
160 第一半壳
161 第一主壁
162 第一端
163 第二端
164 第一纵向侧面
165 第二纵向侧面
166 第一次壁延伸部
167 第二次壁延伸部
168 卡扣插孔
169 卡扣突块
170 第二半壳
171 第一主壁
172 第一端
173 第二端
174 第一纵向侧面
175 第二纵向侧面
176 第一次壁延伸部
177 第二次壁延伸部
178 卡扣插孔
179 卡扣突块
180 接缝
200 插芯组件
210 多光纤插芯
211 前端
212 后端
311 弹簧
312 弹簧帽
400 光缆
410 连接器本体
411 主体
412 第一盖部
413 第二盖部
414 纵向槽
460 外护套
461 强度部件
910 模具
911 槽
920 盖
925 端口
1000 光纤连接器装置

Claims (24)

  1. 一种接续头保护系统(100)，用于保护被限定在多根第一光纤(110)和多根第二光纤(120)之间的熔融接续头位置(130)，所述接续头保护系统(100)包括：
    接续头保护器，所述接续头保护器包括套管(101)，所述套管(101)具有垂直于彼此定向的长度(L101)、宽度(W101)和厚度(T101)，所述套管(101)包括由该套管(101)的长度(L101)和宽度(W101)限定的相反的第一主侧面和第二主侧面，第一主侧面和第二主侧面包括由沿着套管(101)的厚度(T101)延伸的间隔空间(S106)分开的间隔开的主侧壁(102，103)，所述套管(101)还包括由该套管的长度和厚度限定的相反地定位的第一纵向次侧面和第二纵向次侧面，所述套管(101)还包括由该套管(101)的宽度(W101)和厚度(T101)限定的相反地定位的第一和第二横向次侧面(107，108)，第一和第二横向次侧面(107，108)是开口的横向次侧面，
    其中所述宽度(W101)是所述厚度(T101)的至少两倍，其中熔融接续头位置(130)设置在接续头保护器的套管(101)内部，其中所述多根第一光纤(110)和所述多根第二光纤(120)分别在接续头保护器的套管(101)的第一横向次侧面(107)和第二横向次侧面(108)的外侧延伸，并且
    其中接续头保护系统(100)进一步包括粘合剂(109)，该粘合剂设置在接续头保护器的套管(101)内部以填充在接续头保护器的套管(101)内的空隙空间。
  2. 根据权利要求1所述的接续头保护系统，其中第二纵向次侧面是开口的纵向侧面(105)。
  3. 根据权利要求2所述的接续头保护系统，其中熔融接续头位置(130)通过开口的纵向侧面(105)被装载到套管(101)中，并且其中熔融接续头位置(130)定位在主侧壁(102，103)之间的所述间隔空间(S106)内，并且所述光纤(110，120)在熔融接续头位置(130)已经被装载到套管(101)中以后延伸通过套管(101)的开口的横向次侧面(107，108)。
  4. 根据权利要求1所述的接续头保护系统，其中所述长度(L101)是所述宽度(W101)的至少1倍大。
  5. 根据权利要求1所述的接续头保护系统，其中套管(101)的相反的第一主侧面(102)和第二主侧面(103)是大致矩形的。
  6. 根据权利要求1所述的接续头保护系统，其中
    所述光纤(110，120)中的至少2根光纤被铺设穿过套管(101)。
  7. 根据权利要求1所述的接续头保护系统，其中所述光纤(110，120)被布置成行结构，所述行结构具有沿着套管(101)的宽度(W101)延伸的宽度(W110)。
  8. 根据权利要求1所述的接续头保护系统，其中接续头保护系统是使用模具被安装的，所述模具具有底座(910)和盖(920)，所述盖(920)被构造成封闭开口的纵向次侧面(105)且包括注入端口(925)。
  9. 根据权利要求1所述的接续头保护系统，其中所述主侧壁(102，103)中的至少一个或者桥接所述主侧壁(102，103)之间的间距的较小壁(104)限定粘合剂注入端口(115)。
  10. 根据权利要求1所述的接续头保护系统，其中所述粘合剂(109)是能够UV固化的。
  11. 根据权利要求1所述的接续头保护系统，其中所述光纤的行结构的宽度(W110)比接续头保护器的宽度(W101)小。
  12. 根据权利要求1所述的接续头保护系统，其中接续头保护器的套管(101)在垂直于套管(101)的长度(L101)的平面中具有U形横截面。
  13. 根据权利要求1-12中任何一项所述的接续头保护系统，其中所述多根 第一光纤(110)被固定到一插芯(210)并且所述多根第二光纤(120)从一光缆(400)的端部延伸，并且其中接续头保护器的套管(101)与插芯(210)间隔分开。
  14. 根据权利要求13所述的接续头保护系统，其中所述插芯被支撑在一连接器本体内并且套管(101)被容纳在该连接器本体内。
  15. 根据权利要求14所述的接续头保护系统，其中套管通过被限定在连接器本体的开口侧处的纵向狭被横向地装载到连接器本体中。
  16. 根据权利要求14所述的接续头保护系统，其中，连接器本体是坚固耐用的连接器的一部分，该连接器包括扭锁式外部紧固件和至少一个密封件。
  17. 根据权利要求1所述的接续头保护系统，其中第一纵向次侧面包括桥接所述主侧壁(102，103)之间的间隔空间(S106)和互连所述主侧壁(102，103)的纵向壁(104)，第一纵向次侧面是闭合的纵向侧面。
  18. 根据权利要求1所述的接续头保护系统，其中套管(101)由两个配合壳件(160，170)形成。
  19. 根据权利要求18所述的接续头保护系统，其中，所述壳件(160，170)是半部件，且其中所述壳件(160，170)中的至少一个限定注入端口。
  20. 一种用于使用接续头保护器套管(101)保护接续头位置(130)的方法，所述接续头位置(130)被限定在多根第一光纤(110)和多根第二光纤(120)之间，接续头保护器套管(101)具有长度(L101)、宽度(W101)和厚度(T101)，接续头保护器套管(101)包括第一侧壁(102)、与第一侧壁(102)相对的第二侧壁(103)、连接所述第一侧壁(102)和第二侧壁(103)的第三壁(104)以及开口端(107，108)，所述方法包括下述步骤：
    (a)将接续头位置(103)定位在接续头保护器套管(101)内；
    (b)将粘合剂(109)注入到接续头保护器套管(101)中，填充在所述光纤 (110，120)和接续头保护器套管(101)之间的空隙空间；和
    (c)固化粘合剂(109)。
  21. 根据权利要求20所述的方法，其中，接续头保护器套管(101)还包括与第三壁(104)相对的开口的纵向侧面(105)，所述方法还包括：在注入粘合剂(109)之前，将接续头保护器套管(101)放置在模具中。
  22. 根据权利要求21所述的方法，其中模具包括基座(910)和盖(920)，所述盖(920)被构造成用于封闭所述开口的纵向侧面(105)且包括注入端口(925)，并且其中，所述粘合剂(109)通过注入端口(925)被注入到接续头保护器套管(101)中。
  23. 一种光纤连接器和光缆组件，包括：
    支撑多根第一光纤的多光纤插芯；
    具有多根第二光纤的光缆，所述多根第二光纤在接续头位置处接续到所述多根第一光纤；
    涂层材料，所述涂层材料在没有使用永久外部保护外壳结构的情况下被喷涂或者二次成型在接续头位置上；和
    具有开口侧槽的连接器本体，该开口侧槽用于允许插芯和接续头位置被装载到连接器本体中。
  24. 根据权利要求23所述的光纤连接器和光缆组件，其中连接器本体是耐震光纤连接器的一部分，所述耐震光纤连接器具有扭锁式紧固件，该扭锁式紧固件用于将该耐震光纤连接器固定在耐震光纤适配器的端口内。
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US10845540B2 (en) 2020-11-24
US20240288634A1 (en) 2024-08-29
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US20230280534A1 (en) 2023-09-07
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