WO2013104136A1 - 一种光纤连接器及其装配方法 - Google Patents

一种光纤连接器及其装配方法 Download PDF

Info

Publication number
WO2013104136A1
WO2013104136A1 PCT/CN2012/071272 CN2012071272W WO2013104136A1 WO 2013104136 A1 WO2013104136 A1 WO 2013104136A1 CN 2012071272 W CN2012071272 W CN 2012071272W WO 2013104136 A1 WO2013104136 A1 WO 2013104136A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
optical fiber
ceramic ferrule
tail
housing
Prior art date
Application number
PCT/CN2012/071272
Other languages
English (en)
French (fr)
Inventor
杨国
王七月
Original Assignee
深圳日海通讯技术股份有限公司
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 深圳日海通讯技术股份有限公司 filed Critical 深圳日海通讯技术股份有限公司
Priority to JP2014516169A priority Critical patent/JP5899313B2/ja
Priority to US14/119,595 priority patent/US9170379B2/en
Priority to EP12865259.1A priority patent/EP2703859A4/en
Publication of WO2013104136A1 publication Critical patent/WO2013104136A1/zh

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3887Anchoring optical cables to connector housings, e.g. strain relief features
    • G02B6/3888Protection from over-extension or over-compression
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3826Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
    • G02B6/3831Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape comprising a keying element on the plug or adapter, e.g. to forbid wrong connection
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3833Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3854Ferrules characterised by materials
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3833Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3855Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
    • G02B6/3861Adhesive bonding
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3869Mounting ferrules to connector body, i.e. plugs
    • G02B6/387Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3833Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3847Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3887Anchoring optical cables to connector housings, e.g. strain relief features
    • G02B6/38875Protection from bending or twisting
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3887Anchoring optical cables to connector housings, e.g. strain relief features
    • G02B6/3889Anchoring optical cables to connector housings, e.g. strain relief features using encapsulation for protection, e.g. adhesive, molding or casting resin
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/389Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • G02B6/3893Push-pull type, e.g. snap-in, push-on
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4292Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49815Disassembling

Definitions

  • the present invention relates to an optical fiber connecting device, and more particularly to a fiber optic connector having a higher mounting density and a method of assembling the same. Background technique
  • Optical fiber communication has become one of the main pillars of modern communication. It plays a pivotal role in modern telecommunication networks.
  • the development of network technology makes optical fiber a transmission medium for high-speed and broadband data communication.
  • a fiber optic connector is a detachable (active) connection between an optical fiber and an optical fiber that precisely interfaces the two end faces of the optical fiber such that the optical energy output from the transmitting optical fiber is maximally coupled to the receiving optical fiber. And minimize the impact on the system due to its involvement in the optical link.
  • the commonly used fiber optic connectors can be divided into various forms according to the structure of the connector: FC, SC, ST, LC, D4, DIN, MU, MT, and the like.
  • the FC type fiber optic connector was first developed by NTT Japan.
  • the external reinforcement method is a metal sleeve and the fastening method is a turnbuckle.
  • the SC type fiber optic connector has a rectangular outer casing, and the pin and the coupling sleeve have the same structural dimensions as the FC type, and the fastening method is a plug-and-pin type.
  • the difference between the ST connector and the SC type fiber connector is that the core of the ST connector is exposed, and the core of the SC connector is inside the connector.
  • the LC connector was developed by the famous Bell Institute and is made with an easy-to-use modular jack (RJ) latch mechanism.
  • the size of the pins and sleeves used is half that of ordinary SC, FC, etc., which is 1.25mm, and the corresponding interface end face size is 4.5 ⁇ 4. 5 ⁇ , which can improve the fiber connection in the fiber distribution frame.
  • the density of the device At present, in the single-mode SFF, LC type connectors have actually occupied a dominant position, and the application in multi-mode is also growing. Quickly.
  • the MU (Miniature Unit Coupling) connector is the world's smallest single-core fiber optic connector developed by NTT based on the most widely used SC-type connector.
  • the connector uses a 1.25mm diameter aluminum tube and self-retaining mechanism, which has the advantage of high-density mounting, but its interface end face size is still 6.5mm x 4. 4mm.
  • the optical fiber network is rapidly developing in the direction of greater bandwidth and capacity, and the number of optical fiber handovers in the optical access network is increasing.
  • the demand for the transfer capacity of the device is also increasing.
  • the installation density of the fiber connector is required to be higher and higher, and the corresponding volume is getting smaller and smaller.
  • the lateral dimension of the end face of the fiber connector interface is required to be as small as possible to achieve
  • the installation density of the optical fiber connector is increased, but the structure and assembly process of the above existing optical fiber connector are not suitable for such a demand.
  • the object of the present invention is to provide a fiber optic connector and a method for assembling the same, which is different from the existing fiber optic connector structure, and can substantially reduce the lateral dimension of the end face of the fiber connector interface and improve the optical fiber under the premise of satisfying the structural strength.
  • the mounting density of the connector is to provide a fiber optic connector and a method for assembling the same, which is different from the existing fiber optic connector structure, and can substantially reduce the lateral dimension of the end face of the fiber connector interface and improve the optical fiber under the premise of satisfying the structural strength.
  • An optical fiber connector for mating with a fiber optic adapter comprising a connector housing, a ceramic ferrule 2, a spring 4 and a tail sleeve 8, the connector housing having a lateral width of 2.5 mm to 4.5 mm, by the front housing 1 and the rear case 5 are inserted and fastened, and a cavity is formed, and a tail sleeve 8 is connected to the tail of the connector housing, and the outer front end of the connector housing is sequentially provided with the anti-reverse insertion guide protrusion 101.
  • a combination elastic arm wherein the combined elastic arm is provided with a retaining projection 104; the rear end of the ceramic ferrule 2 is fixed with a ceramic ferrule tailstock 3, and the ceramic ferrule 2 has a through hole at the front end of the connector housing Passed through 106, the spring 4 is compressed between the thrust block 501 formed by the inner wall of the connector housing and the ceramic ferrule tailstock 3.
  • the bottom of the connector housing is provided with an insertion block 105, which can be inserted into a corresponding groove on the fiber adapter to prevent the fiber connector from shaking in the vertical direction.
  • the insertion portion of the rear housing 5 has an inverted U-shaped cross section, and the outer side of the inverted U-shaped structure is provided with a front housing inverted 502, corresponding to the side wall of the front housing 1
  • the front casing inverted 502 is engaged with the buckle 107.
  • the combined elastic arm includes two elastic cantilevers disposed oppositely, wherein the end of the elastic cantilever 102 is provided with a beveled relief 104, and the side of the elastic cantilever is provided with a clamp 504, which can pass The clip 14 unites the plurality of elastic cantilevers two 103.
  • the bottoms of the front case 1 and the rear case 5 are provided with interfitting positioning blocks 108 and positioning grooves 503.
  • the front end of the connector housing is provided with a sheath 110 corresponding to the protruding portion of the ceramic ferrule 2, and the inner surface of the enclosure 110 is curved.
  • the front end of the cavity is short and the rear portion is high, and the front end of the cavity is circumferentially constrained to the spring 4, and the rear portion of the cavity can accommodate the bending deformation of the optical fiber when the ceramic ferrule 2 is retracted.
  • the tail portion of the rear casing 5 is fixed with a tail pipe 6 that is open to the cavity, the tail pipe 6 has a circumferential groove 601, and the tail pipe 6 is provided with a squeezable metal pipe. 7.
  • the tail sleeve 8 is fixedly coupled to the connector housing through the tail pipe 6 and the rotation preventing blade 12.
  • the connector housing has a lateral width of 2.5 mm to 4.5 mm.
  • the connector housing is provided with a through hole 109, and the through hole 109 can be embedded with a rod-shaped connecting member that integrates the plurality of the optical fiber connectors.
  • the connector housing is provided with a through slot 505, and the through slot 505 can be embedded with a sheet-like connector that integrally connects the optical fiber connectors.
  • the rod-shaped connecting member is a connecting post 15 , and the connecting post 15 and the through hole 109 pass through Fit.
  • the sheet-like connector is a combined rotation-rotating insert 16, and the combined rotation-rotating insert 16 simultaneously connects a plurality of connector housings and a tail sleeve 8.
  • the sheet-like connecting member is a combined connecting plate 17, and the combined connecting plate 17 is simultaneously connected to a plurality of connector housings.
  • a method for assembling a single fiber optical fiber connector which comprises the following steps:
  • the optical fiber core 9 is cleaned to remove the coating layer, and then inserted through the ceramic ferrule tailstock 3 Provided into the core hole of the ceramic ferrule 2;
  • the fixing glue pre-dropped into the ceramic ferrule tailstock 3 is heated and solidified, and the optical fiber is fixedly connected with the ceramic ferrule tailstock 3;
  • the ceramic ferrule 2 and the ceramic ferrule tailstock 3 are placed into the front casing 1 , and the ceramic ferrule 2 is inserted out from the front end through hole 106 of the front casing 1 and then placed into the spring 4,
  • the rear housing 5 is inserted into the front housing 1 to form a snap fit;
  • step 7 when step 7 is performed, the fiber sheath (11) and the tail sleeve (8) are bonded and fixed together by glue. Further, correspondingly, before entering the metal tube 7 in step 3, the heat shrinkable sleeve is inserted, and after the step 6 is completed, the heat shrinkable sleeve is sleeved on the outside of the metal tube 7 and the optical fiber sheath 11, and then The heat shrinkable sleeve is heat-shrinked to further increase the connection strength of the fiber.
  • a method of assembling a multi-core fiber optic connector including the following steps:
  • the clamp 14 is snapped into the outer single-core fiber optic connector and the plurality of elastic cantilever two 103 are integrated.
  • the optical fiber connector of the invention greatly reduces the overall size of the optical fiber connector under the premise of satisfying the structural strength and the function of use, and the lateral dimension of the interface end face can reach 2.5 mm to 4.5 mm, which can greatly improve the optical fiber.
  • the mounting density of the connector is not limited to 1.
  • FIG. 1 is a schematic view showing the assembly structure of a single-core optical fiber connector according to an embodiment of the present invention
  • Figure 2 is an exploded view of the Figure 1;
  • FIG. 3 is an exploded view showing the composition of a single-core optical fiber connector according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a rear housing of a single-core optical fiber connector according to an embodiment of the present invention
  • FIG. 5 is a schematic view showing an assembled structure of a rear housing and a tail sleeve of a single-core optical fiber connector according to an embodiment of the present invention
  • FIG. 6 is a schematic structural view of a rotation-rotating insert according to an embodiment of the present invention.
  • Figure ⁇ is a schematic structural view of a front housing of the optical fiber connector according to the embodiment of the present invention.
  • Figure 8 is a cross-sectional view showing the structure of a front housing of the optical fiber connector according to the embodiment of the present invention
  • 9 is a schematic structural view of a dual optical fiber connector according to an embodiment of the present invention
  • FIG. 10 is an exploded view showing the composition of a dual optical fiber connector according to an embodiment of the present invention.
  • Figure 11 is a schematic structural view of a clamp according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural view of a tail channel of a fiber connector according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural view of a combined connecting plate according to an embodiment of the present invention.
  • the connector includes a connector housing that is inserted into the front housing 1 and the rear housing 5
  • the insertion portion of the rear housing 5 has an inverted U-shaped cross section, and the outer side surfaces of the inverted U-shaped structure are respectively provided with a front housing inverted buckle 502 corresponding to the two side walls of the front housing 1
  • the front casing inverted buckle 502 can be ejected from the buckle position 107 to form a buckle.
  • the inverted U-shaped structure causes the front wall of the two side walls to be buckled.
  • the front shell 502 can be inwardly retracted when inserted, and the front shell is inverted 502 When the buckle 107 is reached, the elastic opening is formed to form a buckle, and the front end of the front housing 1 has a through hole 106.
  • the front housing 1 and the rear housing 2 are fastened to form a cavity therein, and the front end of the cavity is short and the rear portion is high.
  • the front end of the cavity is used for loading the ceramic ferrule 2, the ceramic ferrule tailstock 3 and the spring 4, forming a circumferential constraint on the spring 4, and the end of the ceramic ferrule 2 is fixed to the ceramic ferrule tailstock 3, the ceramic
  • the ferrule 2 is passed through the front end through hole 106 of the connector housing, and the spring 4 is compressed between the front end surface of the inverted U-shaped structure of the rear housing 5 and the ceramic ferrule tailstock 3, and the front end surface of the inverted U-shaped structure serves as a thrust Block 501, ceramic ferrule 2 together with ceramic ferrule tailstock 3 as a moving end, when the adapter is inserted into the fiber optic connector before and after, the ceramic ferrule 2 is docked with each other in the adapter, and the ceramic ferrule 2 is correspondingly contacted by the spring 4.
  • the rear of the cavity is high, which is used to accommodate the bending deformation of the fiber in the cavity when the ceramic ferrule 2 is retracted, which can effectively prevent the connector from being inserted into the adapter.
  • the ceramic ferrule 2 retreats, the amount of fiber bending exceeds the cavity. Broken or damaged by ability.
  • the bottom of the connector housing is provided with an inserting block 105, which can be inserted into a corresponding recess on the optical fiber adapter to prevent the optical fiber connector from swaying in the vertical direction.
  • the bottom portions of the front housing 1 and the rear housing 5 are respectively provided with an engaging positioning block 108 and a positioning slot 503.
  • the cassette structure can be formed after the insertion is completed, and the connection strength of the front case 1 and the rear case 2 is increased.
  • the front end of the connector housing is provided with a sheath 110 corresponding to the protruding portion of the ceramic ferrule 2, and the inner surface of the enclosure 110 is curved.
  • the sides of the guard 110 have a relatively large thickness to ensure sufficient joint strength between the enclosure 110 and the front casing 1.
  • the outer front end of the casing is provided with a guiding protrusion 101 and a combined elastic arm in sequence, and the guiding protrusion 101 is used for guiding when the connector is inserted into the adapter module, and also plays an anti-reverse insertion function to ensure the optical fiber.
  • the assembled elastic arm includes two elastic cantilevers disposed oppositely, wherein the fixed end of the elastic cantilever 102 is located on the front casing 1 , and the end of the elastic cantilever 102 has a receding projection 104 with a beveled surface Block 104 can be inserted into the adapter module design location when the fiber optic connector is inserted Under the action of the elastic cantilever 102, the corresponding groove on the adapter is ejected to form a lock; when exiting, the lower elastic cantilever 102 is pressed correspondingly, and the retaining projection 104 is withdrawn from the groove on the adapter, by means of the inclined structure,
  • the elastic cantilever arm 102 is automatically ejected from the adapter slot by the elastic force of the elastic cantilever 102; the fixed end of the elastic cantilever two 103 is located on the rear casing 5, and the end of the elastic cantilever arm 103 is placed on the end of the elastic cantilever 102, by pressing The elastic cantilever two 103 can form
  • the optical fiber connector can be used to integrate the elastic cantilever two 103 by a clamp 14, and the clamp 14 is preferably stamped from a resilient metal sheet, the clamp 14 includes a substrate 141 made of an elastic material, and the substrate 141.
  • the two ears 142 are bent at both ends, and the ear piece 142 is provided with a buckle 143 matched with the clamp buckle 504, and the clamp reverse buckle 504 is fastened in the buckle 143, which can realize two or more Fiber connection
  • the arm of the device moves at the same time, which is convenient for operation.
  • a tail pipe 6 is formed in the tail portion of the rear casing 5 and is connected to the cavity.
  • the tail pipe 6 is usually made of a metal material, and is injection molded with the rear casing 5, and the tail pipe 6 has a circumferential concave shape.
  • the groove 601 and the tail pipe 6 are provided with a squeezable and deformable metal pipe 7. When assembled, the spun layer 13 of the optical fiber can be sleeved between the tail pipe 6 and the metal pipe 7, and the metal pipe 7 is pressed by means of a tool. The deformation is produced at the circumferential groove 601 to form a fixed connection between the optical fiber and the connector.
  • a tail sleeve 8 is disposed at the tail of the connector housing, which is fixedly connected to the connector housing through the tail tube 6 and the rotation-rotating insert 12, and the end-rotating insert 12-end is embedded in the connector.
  • the housing is inserted into the corresponding hole of the tail sleeve 8 at one end to prevent the tail sleeve 8 from rotating around the tail tube 6, and the connection strength between the tail sleeve 8 and the connector housing can be enhanced.
  • the connector housing is provided with a through hole 106 or a through groove 505 or a combination of the two, through the rod-shaped connector or the sheet-like connector A plurality of the fiber optic connectors are integrated.
  • the double fiber connector is preferred.
  • the two optical fiber connectors are fixed by using a combination of the connecting post 15 and the combined rotation preventing insert 16 , and the connecting post 15 has an interference fit with the through hole 109 at the front end of the connector housing;
  • the length is equal to or slightly smaller than the sum of the thicknesses of the two fiber connector housings.
  • the connecting post 15 When assembled, the connecting post 15 can be tapped into the through hole 109 by means of a tool, preferably made of a metal material, such as an aluminum alloy or steel. Etc., to ensure that the connecting column 15 has a good connection strength.
  • a tool preferably made of a metal material, such as an aluminum alloy or steel. Etc., to ensure that the connecting column 15 has a good connection strength.
  • the cross section of the connecting post 15 is not limited to a circular shape, and it may also be a rod-shaped connecting member having a rectangular or polygonal cross section, and the cross section of the through hole 109 is correspondingly rectangular or polygonal.
  • a plurality of rod-shaped connectors may also be provided to achieve a higher connection strength, for example, two or more, and a plurality of corresponding through holes 109 in each of the corresponding fiber connector housings.
  • a through slot 505 is defined in the tail end of the fiber connector housing, and the combined rotation insert 16 as a sheet-like connector is inserted into the slot 505 to connect the two fiber connectors together.
  • the two tail sleeves 8 are connected, and the combined rotation preventing inserts 16 are interference-fitted with the through grooves 505, and the lateral width of the combined rotation preventing inserts 16 is equal to or slightly smaller than the sum of the thicknesses of the two optical fiber connectors.
  • a positioning block 506 is disposed in the through groove 505, and the combined rotation preventing insert 16 is correspondingly provided with a notch 161 matched with the positioning block 506.
  • the positioning block 506 is caught in the notch 161, and the combined rotation preventing tab 16 can be effectively prevented from being released from the through groove 505. Further, it is also possible to provide a retaining projection 162 on the inner side of the notch 161 of the combined rotation preventing insert 16, and the retaining projection 1624 is hung on both sides of the positioning block 506, which can further prevent the combined rotation during use. The tab 16 is released from the through slot 505.
  • Fig. 13 provides a combination connecting plate 17 which can replace the above-described combined rotation preventing insert 16, which is not connected to the tail sleeve 8, and functions as a connecting piece only for the connection housing.
  • the multi-fiber connector may be formed by using a rod-shaped connecting member in combination with a through hole or a sheet-like connecting member and a through-groove.
  • the number of the optical fiber connectors is not limited to two, and may be A plurality, preferably an even number.
  • the assembly method of the corresponding single-core connector includes the following steps:
  • the optical fiber core 9 is cleaned to remove the coating layer, and then inserted through the ceramic ferrule tailstock 3 Provided into the core hole of the ceramic ferrule 2;
  • the fixing glue pre-dropped into the ceramic ferrule tailstock 3 is heated and solidified, and the optical fiber is fixedly connected with the ceramic ferrule tailstock 3;
  • the ceramic ferrule 2 and the ceramic ferrule tailstock 3 are placed into the front casing 1 , and the ceramic ferrule 2 is inserted out from the front end through hole 106 of the front casing 1 and then placed into the spring 4,
  • the rear housing 5 is inserted into the front housing 1 to form a snap fit;
  • the connecting plate 12 is placed on the rear casing 5, and the tail sleeve 8 is inserted into the connecting plate 12 and the metal pipe 7 to complete the assembly of the connector.
  • the fiber sheath 11 and the tail sleeve 8 are bonded and fixed together by glue.
  • a heat shrinkable sleeve can be added on the outer side of the metal pipe 7 and the outer casing 11 to be reinforced and fixed, and the corresponding assembly is worn in step 3. Passing through the heat shrinkable sleeve before entering the metal pipe 7, and after the completion of step 6, the heat shrinkable sleeve is placed on the gold The heat shrinkable sleeve is heat-shrinked and fixed to the outside of the tube 7 and the optical fiber sheath 11.
  • the corresponding steps include the following steps:
  • the clamp 14 is snapped into the outer single-core fiber optic connector and the plurality of elastic cantilever two 103 are integrated.
  • the single-core connector housing can have a lateral width of 2.5 mm to 4.5 mm, and has a smaller width than the existing connector, which can greatly improve the optical fiber connector. Installation density.
  • the scope of the invention is to be construed as being limited to the scope of the invention as claimed in the appended claims.

Abstract

一种光纤连接器及其装配方法,该连接器用于和光纤适配器配合,包括连接器壳体、陶瓷插芯(2)、弹簧(4)和尾套(8),该连接器壳体横向宽度为2.5mm至4.5mm,由前壳体(1)和后壳体(5)插入扣合而成,并形成空腔,该连接器壳体的尾部连接有尾套(8),连接器壳体外部前端向后依次设置导向凸块(101)和组合弹臂,该组合弹臂上设置有止退凸块(104);陶瓷插芯(2)尾端同陶瓷插芯尾座(3)固定并至连接器壳体前端通孔穿出,该弹簧被压缩在陶瓷插芯尾座(3)和连接器壳体内壁形成的止推块(501)之间。该连接器极大的缩小了连接器的整体尺寸,提高了连接器的安装密度。

Description

一种光纤连接器及其装配方法 技术领域 本发明涉及光纤连接装置, 尤其是一种具有更高安装密度的光纤连接器及 其装配方法。 背景技术
光纤通信已成为现代通信的说主要支柱之一, 在现代电信网中起着举足轻重 的作用, 网络科技的发展, 使光纤作为一种高速、 宽带数据通信的传输媒介得 书
到了日益广泛的使用。 光纤连接器是光纤与光纤之间进行可拆卸(活动)连接 的器件, 它把光纤的两个端面精密地对接起来, 以使发射光纤输出的光能量能 最大限度地耦合到接收光纤中去, 并使由于其介入光链路而对系统造成的影响 减到最小。 目前常用的光纤连接器按连接头结构形式可分为: FC、 SC、 ST、 LC、 D4、 DIN、 MU、 MT等各种形式。
FC型光纤连接器最早是由日本 NTT研制,其外部加强方式是采用金属套, 紧固方式为螺丝扣。
SC 型光纤连接器其外壳呈矩形, 所采用的插针与耦合套筒的结构尺寸与 FC型完全相同, 紧固方式是采用插拔销闩式。
ST连接器与 SC型光纤连接器的区别在于 ST连接器的芯外露, SC连接 器的芯在接头里面。
LC型连接器是著名 Bell (贝尔) 研究所研究开发出来的, 采用操作方 便的模块化插孔 (RJ ) 闩锁机理制成。 其所采用的插针和套筒的尺寸是普 通 SC、 FC等所用尺寸的一半, 为 1.25mm, 其相应的接口端面尺寸为 4.5匪 χ 4. 5匪, 可以提高光纤配线架中光纤连接器的密度。 目前, 在单模 SFF方 面, LC类型的连接器实际已经占据了主导地位, 在多模方面的应用也增长 迅速。
MU ( Miniature Unit Coupling ) 连接器是以目前使用最多的 SC型连接 器为基础, 由 NTT研制开发出来的目前世界上最小的单芯光纤连接器。 该 连接器采用 1.25mm直径的铝管和自保持机构,其优势在于能实现高密度安 装, 但其接口端面尺寸依然达到了 6.5mm x 4. 4mm。
随着 FTTH ( Fiber To The Home, 光纤到家)的大规模推进, 光纤网络向更 大带宽、 更大容量的方向迅速发展, 光接入网中光纤交接的数量需求愈来愈多, 对相应硬件设备的交接容量需求也越来越大, 要求光纤连接器的安装密度越来 越高, 相应的体积越来越小, 尤其是要求光纤连接器接口端面的横向尺寸尽可 能地缩小, 以实现在现有设备物理容积不变的基础上, 提高光纤连接器的安装 密度, 但上述现有的光纤连接器的结构和装配工艺均无法胜任这种需求。
发明内容
本发明的目的, 在于提供一种光纤连接器及其装配方法, 其不同于现有的 光纤连接器结构, 在满足结构强度的前提下, 可大幅缩小光纤连接器接口端面 的横向尺寸, 提高光纤连接器的安装密度。
本发明的目的是通过以下技术方案来实现:
一种光纤连接器, 用于和光纤适配器配合, 包括连接器壳体、 陶瓷插芯 2、 弹簧 4和尾套 8, 所述连接器壳体横向宽度为 2.5mm至 4.5mm, 由前壳体 1和 后壳体 5插入扣合而成, 并形成空腔, 所述连接器壳体的尾部连接有尾套 8, 所述连接器壳体外部前端向后依次设置防反插导向凸块 101和组合弹臂, 所述 组合弹臂上设置有止退凸块 104; 所述陶瓷插芯 2尾端同陶瓷插芯尾座 3固定, 所述陶瓷插芯 2 自连接器壳体前端通孔 106中穿出, 所述弹簧 4被压缩在连接 器壳体内壁形成的止推块 501和陶瓷插芯尾座 3之间。 特别的, 所述连接器壳体底部设置有插入块 105 , 能够插入光纤适配器上 对应的凹槽, 起到防止光纤连接器在竖直方向晃动的作用。
特别的, 所述后壳体 5的插入部分横截面呈倒 U形结构, 所述倒 U型结构 的外侧面上设有前壳倒扣 502, 对应所述前壳体 1侧壁上设有扣位 107, 后壳体 5插入前壳体 1时, 所述前壳倒扣 502与所述扣位 107形成扣合。
特别的, 所述组合弹臂包括相对设置的两弹性悬臂, 其中弹性悬臂一 102 的末端设有带斜面的止退凸块 104, 弹性悬臂二 103的侧面设有卡箍倒扣 504, 能够通过卡箍 14将多个弹性悬臂二 103联为一体。
特别的,所述前壳体 1和所述后壳体 5的底部设置有互相配合的定位块 108 和定位槽 503。
特别的, 所述连接器壳体的前端对应陶瓷插芯 2的伸出部分设有围护 110, 所述围护 110内表面为弧形。
特别的, 所述空腔前端矮后部高, 空腔前端对弹簧 4形成周向约束, 空腔 后部可容纳陶瓷插芯 2后退时光纤产生的弯曲变形。
特别的, 所述后壳体 5的尾部固接有与所述空腔直通的尾管 6, 所述尾管 6 具有环向凹槽 601 , 尾管 6外套装有可挤压变形的金属管 7。
特别的, 所述尾套 8通过尾管 6和止旋插片 12与连接器壳体连接固定。 优选的, 所述连接器壳体的横向宽度为 2.5mm至 4.5mm。
进一步的, 所述连接器壳体上设有通孔 109, 所述通孔 109 中能够嵌入将 多个所述光纤连接器联为一体的杆状连接件。
进一步的, 所述连接器壳体上设有通槽 505 , 所述通槽 505 中能够嵌入将 所述光纤连接器联为一体的片状连接件。
优选的, 所述杆状连接件为连接柱 15 , 所述连接柱 15与所述通孔 109过 盈配合。
优选的, 所述片状连接件为组合止旋插片 16, 所述组合止旋插片 16 同时 连接多个连接器壳体和尾套 8。
优选的, 所述片状连接件为组合连接板 17, 所述组合连接板 17 同时连接 多个连接器壳体。
同时提供一种单纤光纤连接器的装配方法, 其包括以下步骤:
1、 先将陶瓷插芯 2尾端插入陶瓷插芯尾座 3中固定;
2、 去除接入端光纤外皮 11 , 保留合适长度的光纤紧套层 10、 纺纶层 13并 露出适当长度的光纤纤芯 9;
3、 将接入端依次穿入尾套 8、 金属管 7、 尾管 6、 后壳体 5、 弹簧 4后, 将 光纤纤芯 9清洁去除涂敷层后, 通过陶瓷插芯尾座 3插设到陶瓷插芯 2的芯孔 内;
4、对预先滴入陶瓷插芯尾座 3内的固定胶加热固化, 使光纤同陶瓷插芯尾 座 3固定连接;
5、 所述固定胶固化后, 将陶瓷插芯 2连同陶瓷插芯尾座 3置入前壳体 1 , 将陶瓷插芯 2 自前壳体 1前端通孔 106穿出后置入弹簧 4, 将后壳体 5插入前 壳体 1形成扣合;
6、 将纺纶层 13套至尾管 6上, 并套上金属管 7, 将金属管 7挤压变形形 成固定连接;
7、 在后壳体 5上装入止旋插片 12, 将尾套 8与止旋插片 12和金属管 7插 合在一起, 完成连接器的装配。
进一步的, 进行步聚 7时, 通过胶水将光纤外皮(11 )与尾套(8 )粘接固 定在一起。 进一步的, 相应在步骤 3中穿入金属管 7前穿入热缩套管, 对应在步骤 6 完成后, 将所述热缩套管套在金属管 7和光纤外皮 11的外面, 再对所述热缩套 管进行热缩固定, 可进一步增加光纤的连接强度。
同时还提供一种多芯光纤连接器的装配方法, 包括以下步骤:
1、 将装配好的多个单芯光纤连接器并靠在一起, 将杆状连接件依次穿过每 个连接器的通孔 109;
2、 将片状连接件嵌入每个连接器的通槽 505;
3、 将卡箍 14卡入外侧的单芯光纤连器的卡箍倒扣 504, 将多个弹性悬臂 二 103联为一体。
本发明所述的光纤连接器, 在满足结构强度及使用功能的前提下, 极大地 缩小了光纤连接器的整体尺寸,使其接口端面横向尺寸可达到 2.5mm至 4.5mm, 可以极大地提高光纤连接器的安装密度。
附图说明
下面根据附图和实施例对本发明作进一步详细说明。
图 1是本发明实施例所述单芯光纤连接器的装配结构示意图;
图 2是所述图 1的分解图;
图 3是本发明实施例所述单芯光纤连接器的组成爆炸图;
图 4是本发明实施例所述单芯光纤连接器的后壳体结构示意图一; 图 5是本发明实施例所述单芯光纤连接器的后壳体与尾套的组装结构示意 图;
图 6是本发明实施例所述止旋插片的结构示意图;
图 Ί是本发明实施例所述光纤连接器的前壳体结构示意图;
图 8是本发明实施例所述光纤连接器的前壳体结构剖视图; 图 9是本发明实施例所述双联光纤连接器的结构示意图;
图 10是本发明实施例所述双联光纤连接器的组成爆炸图;
图 11是本发明实施例所述卡箍的结构示意图;
图 12是本发明实施例所述光纤连接器尾部通槽的结构示意图;
图 13是本发明实施例所述组合连接板的结构示意图。
图中:
1、 前壳体; 2、 陶瓷插芯; 3、 陶瓷插芯尾座; 4、 弹簧; 5、 后壳体; 6、 尾管; 7、 金属管; 8、 尾套; 9、 光纤纤芯; 10、 紧套层; 11、 光纤外皮; 12、 止旋插片; 13、 纺纶层; 14、 卡箍; 15、 连接柱; 16、 组合止旋插片; 17、 组 合连接板;
101、 导向块; 102、 弹性悬臂一; 103、 弹性悬臂二; 104、 止退凸块; 105、 插入块; 106、 通孔; 107、 扣位; 108、 定位块; 109、 通孔; 110、 围护;
501、 止推块; 502、 前壳倒扣; 503、 定位槽; 504、 卡箍倒扣; 505、 通槽; 506、 定位块;
121、 缺口; 122、 止退凸起;
141、 基板; 142、 耳片; 143、 扣位。
具体实施方式
如图 1至 8所示, 给出了本发明所述光纤连接器的一个具体实施例, 该连 接器包括连接器壳体, 该连接器壳体由前壳体 1和后壳体 5插入扣合而成, 后 壳体 5的插入部分横截面呈倒 U形结构,所述倒 U型结构的两外侧面上分别设 置有前壳倒扣 502, 对应所述前壳体 1两侧壁上分别设置扣位 107, 后壳体 5插 入前壳体 1时, 所述前壳倒扣 502可自扣位 107弹出后形成扣合, 该倒 U形结 构一方面使两侧壁前壳倒扣 502在插入时能够向内收缩,另一方面前壳倒扣 502 到达扣位 107时具有弹力弹出形成扣合, 前壳体 1的前端具有通孔 106, 前壳 体 1和后壳体 2扣合后在内部形成空腔, 该空腔前端矮后部高, 空腔前端用于 装入陶瓷插芯 2、 陶瓷插芯尾座 3和弹簧 4, 对所述弹簧 4形成周向约束, 陶瓷 插芯 2尾端同陶瓷插芯尾座 3固定,所述陶瓷插芯 2自连接器壳体前端通孔 106 穿出, 弹簧 4被压缩在后壳体 5的倒 U形结构前端面和陶瓷插芯尾座 3之间, 倒 U形结构前端面作为止推块 501 , 陶瓷插芯 2连同陶瓷插芯尾座 3作为动端, 当适配器前后分别插入光纤连接头, 陶瓷插芯 2在适配器内相互对接后, 由弹 簧 4对陶瓷插芯 2施加相应的接触弹力; 空腔后部较高, 用于容纳陶瓷插芯 2 后退时空腔内光纤产生的弯曲变形, 可有效避免连接器插入适配器过程中, 陶 瓷插芯 2后退时造成光纤弯曲量超过空腔容纳能力而折断或损伤。
所述连接器壳体底部设置有插入块 105 , 能够插入光纤适配器上对应的凹 槽, 起到防止光纤连接器在竖直方向晃动的作用。
连接器壳体厚度减小后, 为增强前后壳体的插接扣合强度, 所述前壳体 1 和所述后壳体 5的底部分别设置有互相配合的定位块 108和定位槽 503 , 在插 接完成后能够形成卡榫结构, 增加前壳体 1和后壳体 2的连接强度。
为对伸出连接器壳体的陶瓷插芯 2进行保护, 连接器壳体的前端对应陶瓷 插芯 2的伸出部分设有围护 110,该围护 110内表面为弧形,可使围护 110的两 侧具有相对较大的厚度,从而保证围护 110与前壳体 1间形成足够的连接强度。
壳体外部前端向后依次设置导向凸块 101和组合弹臂, 导向凸块 101—方 面在连接器插入适配器模块时起到导向的作用,另一方面也能起到防反插作用, 保证光纤连接器的正确插入; 组合弹臂包括相对设置的两弹性悬臂, 其中弹性 悬臂一 102固定端位于前壳体 1上, 弹性悬臂一 102的末端具有带斜面的止退 凸块 104, 止退凸块 104能够在光纤连接器插入到适配器模块设计位置时, 在 弹性悬臂一 102 自身弹力的作用下, 对应适配器上的凹槽弹出, 形成锁定; 在 退出时, 相应按压下弹性悬臂一 102, 止退凸块 104退出适配器上的凹槽, 借 助斜面结构, 在弹性悬臂一 102自身的弹力作用下, 自动从适配器插槽中退出; 弹性悬臂二 103固定端位于后壳体 5上, 弹性悬臂二 103的末端置于弹性悬臂 一 102的末端之上, 通过按压弹性悬臂二 103 , 可形成对弹性悬臂一 102的按 压; 弹性悬臂二 103 的侧面设有卡箍倒扣 504, 当本光纤连接器采用多个并联 使用时,如图 9至 12所示的双联光纤连接器,可利用卡箍 14将弹性悬臂二 103 联为一体, 卡箍 14优选由具有弹性的金属片冲压而成, 卡箍 14包括由弹性材 料制成的基板 141 , 以及由基板 141两端折弯而成的两耳片 142, 耳片 142上设 有与卡箍倒扣 504相配合的扣位 143 , 卡箍倒扣 504扣合在扣位 143中, 可实 现两个或多个光纤连接器的弹臂同时动作, 方便了操作。
在后壳体 5的尾部固接有与所述空腔直通的尾管 6, 尾管 6通常采用金属 材料制成, 与后壳体 5—并注塑成形, 所述尾管 6具有环向凹槽 601 , 尾管 6 外套装有可挤压变形的金属管 7, 装配时, 可将光纤的纺纶层 13套至尾管 6与 金属管 7之间, 借助工具对金属管 7进行挤压, 在环向凹槽 601处产行变形, 从而将光纤与连接器形成固定连接。
为对光纤进行保护, 在连接器壳体的尾部设置有尾套 8, 其通过尾管 6和 止旋插片 12与连接器壳体连接固定, 所述止旋插片 12—端嵌入连接器壳体, 一端插入尾套 8对应的孔中, 可防止尾套 8绕尾管 6旋转, 并可增强尾套 8与 连接器壳体的连接强度。
为了方便多个光纤连接器固联在一起形成多联光纤连接器, 在连接器壳体 上设有通孔 106或通槽 505或两者的组合, 通过杆状连接件或片状连接件可将 多个所述光纤连接器联为一体。 如图 9至 12所示的双联光纤连接器, 作为优选 方案, 其采用连接柱 15和组合止旋插片 16组合使用的方式将两个光纤连接器 形成固联, 该连接柱 15与连接器壳体前端的通孔 109过盈配合; 连接柱 15的 长度等于或略小于两个光纤连接器壳体的厚度之和, 装配时, 可以借助工具将 连接柱 15敲入到通孔 109中, 连接柱 15优选金属材质制成, 例如铝质合金或 钢铁等, 以保证连接柱 15具有很好的连接强度。 需要理解的是, 连接柱 15的 横截面并不局限于圆形, 其也可以是横截面为矩形或多边形的杆状连接件, 此 时通孔 109的截面也相应的为矩形或多边形。 杆状连接件也可以设置多个, 以 达到更高的连接强度, 例如两个或两个以上, 对应的每个光纤连接器壳体上的 通孔 109也为多个。
此实施例中, 光纤连接器壳体的尾端上设有通槽 505 , 作为片状连接件的 组合止旋插片 16则插入在通槽 505中, 将两个光纤连接器连接在一起, 同时与 两个尾套 8连接, 组合止旋插片 16与通槽 505过盈配合, 组合止旋插片 16的 横向宽度等于或略小于两个光纤连接器的厚度之和。 进一步, 为了增强组合止 旋插片 16与通槽 505的配合, 在通槽 505内设有定位块 506, 组合止旋插片 16 则相应的上设有与定位块 506配合的缺口 161 , 所述定位块 506卡在缺口 161 内, 可以有效防止组合止旋插片 16从通槽 505中松脱。 进一步,还可以在组合 止旋插片 16的缺口 161的内侧边上设置止退凸起 162, 止退凸起 1624氐在定位 块 506的两侧,可以进一步防止在使用过程中组合止旋插片 16从通槽 505中松 脱。
图 13提供了一种可替换上述组合止旋插片 16的组合连接板 17, 该组合连 接板 17不与尾套 8连接, 作为片状连接件仅起到连接壳体的作用,
需要理解的是亦可单独采用杆状连接件配合通孔或是片状连接件配合通槽 的结构形式形成多联光纤连接器, 光纤连接器的数目并不局限于两个, 可以是 多个, 优选偶数个。
以上提供了本发明所述光纤连接器的结构组成, 对应此连接器, 其相应的 单芯连接器的装配方法包括如下步骤:
1、 先将陶瓷插芯 2尾端插入陶瓷插芯尾座 3中固定;
2、 去除接入端光纤外皮 11 , 保留合适长度的光纤紧套层 10、 纺纶层 13并 露出适当长度的光纤纤芯 9;
3、 将接入端依次穿入尾套 8、 金属管 7、 尾管 6、 后壳体 5、 弹簧 4后, 将 光纤纤芯 9清洁去除涂敷层后, 通过陶瓷插芯尾座 3插设到陶瓷插芯 2的芯孔 内;
4、对预先滴入陶瓷插芯尾座 3内的固定胶加热固化, 使光纤同陶瓷插芯尾 座 3固定连接;
5、 所述固定胶固化后, 将陶瓷插芯 2连同陶瓷插芯尾座 3置入前壳体 1 , 将陶瓷插芯 2 自前壳体 1前端通孔 106穿出后置入弹簧 4, 将后壳体 5插入前 壳体 1形成扣合;
6、 将纺纶层 13套至尾管 6上, 并套上金属管 7, 将金属管 7挤压变形形 成固定连接;
7、 在后壳体 5上装入连接板 12, 将尾套 8与连接板 12和金属管 7插合在 一起, 完成连接器的装配。
对于壳体厚度尺寸较小时, 进行步聚 7时, 通过胶水将光纤外皮 11与尾套 8粘接固定在一起。
在壳体横向尺寸较大, 使尾套 8的厚度尺寸足够大的前提下, 还可以在金 属管 7和光纤外皮 11的外面增加热缩套管进行增强固定, 相应装配时在步骤 3 中穿入金属管 7前穿入热缩套管, 并在步骤 6完成后, 将所述热缩套管套在金 属管 7和光纤外皮 11的外面, 再对所述热缩套管进行热缩固定。
对应多芯光纤连接器的装配方法, 其相应还包括以下步聚:
1、 将装配好的多个单芯光纤连接器并靠在一起, 将杆状连接件依次穿过每 个连接器的通孔 109;
2、 将片状连接件嵌入每个连接器的通槽 505。
3、 将卡箍 14卡入外侧的单芯光纤连器的卡箍倒扣 504, 将多个弹性悬臂 二 103联为一体。
本发明所述的单芯光纤连接器, 单芯连接器壳体的横向宽度可以作到 2.5mm至 4.5mm, 相对于现有的连接器, 具有更小的宽度, 可极大地提高光纤 连接器的安装密度。 制本发明的专利范围, 凡未脱离本发明技术精神所做出的等效实施或变更的方 式均应包含于本申请所请求保护的专利范围中。

Claims

权 利 要 求 书
1、 一种光纤连接器, 用于和光纤适配器配合, 包括连接器壳体、 陶瓷插芯 (2)、 弹簧(4)和尾套(8), 其特征在于: 所述连接器壳体横向宽度为 2.5mm 至 4.5mm, 由前壳体(1)和后壳体(5)插入扣合而成, 并形成空腔, 所述连 接器壳体的尾部连接有尾套(8), 所述连接器壳体外部前端向后依次设置防反 插导向凸块( 101 )和组合弹臂, 所述组合弹臂上设置有止退凸块( 104); 所述 陶瓷插芯(2)尾端同陶瓷插芯尾座(3) 固定, 所述陶瓷插芯(2) 自连接器壳 体前端通孔(106) 中穿出, 所述弹簧(4)被压缩在连接器壳体内壁形成的止 推块(501 )和陶瓷插芯尾座(3)之间。
2、 根据权利要求 1所述的光纤连接器, 其特征在于: 所述连接器壳体底部 设置有插入块(105), 能够插入光纤适配器上对应的凹槽, 起到防止光纤连接 器在竖直方向晃动的作用。
3、 根据权利要求 1所述的光纤连接器, 其特征在于: 所述后壳体(5) 的 插入部分横截面呈倒 U 形结构, 所述倒 U 型结构的外侧面上设有前壳倒扣
(502), 对应所述前壳体(1 )侧壁上设有扣位(107), 后壳体(5)插入前壳 体(1) 时, 所述前壳倒扣 (502)与所述扣位(107)形成扣合。
4、 根据权利要求 1所述的光纤连接器, 其特征在于: 所述组合弹臂包括相 对设置的两弹性悬臂, 其中弹性悬臂一 (102) 的末端设有带斜面的止退凸块
(104), 弹性悬臂二(103) 的侧面设有卡箍倒扣 (504), 能够通过卡箍 (14) 将多个弹性悬臂二(103)联为一体。
5、 根据权利要求 1所述的光纤连接器, 其特征在于: 所述前壳体(1 )和 所述后壳体(5) 的底部设置有互相配合的定位块(108)和定位槽(503 )。
6、 根据权利要求 1所述的光纤连接器, 其特征在于: 所述连接器壳体的前 端对应陶瓷插芯 (2) 的伸出部分设有围护 (110), 所述围护 (110) 内表面为 弧形。
7、 根据权利要求 1所述的光纤连接器, 其特征在于: 所述空腔前端矮后部 高, 空腔前端对弹簧(4)形成周向约束, 空腔后部可容纳陶瓷插芯 (2)后退 时光纤产生的弯曲变形。
8、 根据权利要求 1所述的光纤连接器, 其特征在于: 所述后壳体(5) 的 尾部固接有与所述空腔直通的尾管 (6), 所述尾管 (6)具有环向凹槽 (601), 尾管 (6)外套装有可挤压变形的金属管 (7)。
9、 根据权利要求 1所述的光纤连接器, 其特征在于: 所述尾套(8)通过 尾管 (6)和止旋插片 (12)与连接器壳体连接固定。
10、 根据权利要求 1至 9所述的任一种光纤连接器, 其特征在于: 所述连 接器壳体上设有通孔(109), 所述通孔(109)中能够嵌入将多个所述光纤连接 器联为一体的杆状连接件。
11、 根据权利要求 1至 9所述的任一种光纤连接器, 其特征在于: 所述连 接器壳体上设有通槽(505 ), 所述通槽(505 )中能够嵌入将所述光纤连接器联 为一体的片状连接件。
12、 根据权利要求 10所述的光纤连接器, 其特征在于: 所述杆状连接件为 连接柱( 15 ), 所述连接柱( 15 )与所述通孔( 109 )过盈配合。
13、 根据权利要求 11所述的光纤连接器, 其特征在于: 所述片状连接件为 组合止旋插片 (16), 所述组合止旋插片 (16) 同时连接多个连接器壳体和尾套
(8)。
14、 根据权利要求 11所述的光纤连接器, 其特征在于: 所述片状连接件为 组合连接板(17), 所述组合连接板(17) 同时连接多个连接器壳体。
15、 一种单芯光纤连接器的装配方法, 其特征在于包括以下步骤: 1)、 先将陶瓷插芯 (2)尾端插入陶瓷插芯尾座(3) 中固定;
2)、 去除接入端光纤外皮 (11 ), 保留合适长度的光纤紧套层 (10)、 纺纶 层(13) 并露出适当长度的光纤纤芯 (9);
3)、 将接入端依次穿入尾套(8)、 金属管 (7)、 尾管 (6)、 后壳体(5)、 弹簧(4)后, 将光纤纤芯(9)清洁去除涂敷层后, 通过陶瓷插芯尾座(3)插 设到陶瓷插芯 (2) 的芯孔内;
4)、 对预先滴入陶瓷插芯尾座(3) 内的固定胶加热固化, 使光纤同陶瓷插 芯尾座(3) 固定连接;
5)、 所述固定胶固化后, 将陶瓷插芯 (2)连同陶瓷插芯尾座(3) 置入前 壳体( 1 ),将陶瓷插芯( 2 )自前壳体( 1 )前端通孔( 106 )穿出后置入弹簧( 4 ), 将后壳体( 5 )插入前壳体( 1 )形成扣合;
6)、 将纺纶层(13)套至尾管(6)上, 并套上金属管(7), 将金属管(7) 挤压变形形成固定连接;
7)、 在后壳体(5)上装入止旋插片 (12), 将尾套(8) 与止旋插片 (12) 和金属管 (7)插合在一起, 完成连接器的装配。
16、 根据权利要求 15所述的单芯光纤连接器的装配方法, 其特征在于: 所 述步骤 7)还包括: 通过胶水将光纤外皮(11)与尾套(8)粘接固定在一起。
17、 根据权利要求 15所述的单芯光纤连接器的装配方法, 其特征在于: 可 进一步采用热缩套管增加光纤的连接强度, 相应在步骤 3) 中穿入金属管 (7) 前穿入热缩套管, 对应在步骤 6) 完成后, 将所述热缩套管套在金属管 (7)和 光纤外皮 (11) 的外面, 再对所述热缩套管进行热缩固定。
18、 一种多芯光纤连接器的装配方法, 其特征在于包括以下步骤:
1)、 将装配好的多个单芯光纤连接器并靠在一起, 将杆状连接件依次穿过 每个连接器的通孔(109);
2)、 将片状连接件嵌入每个连接器的通槽(505 )。
3)、 将卡箍 (14)卡入外侧的单芯光纤连器的卡箍倒扣 (504), 将多个弹 性悬臂二(103)联为一体。
PCT/CN2012/071272 2012-01-11 2012-02-17 一种光纤连接器及其装配方法 WO2013104136A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2014516169A JP5899313B2 (ja) 2012-01-11 2012-02-17 光ファイバコネクタ及びその組立法
US14/119,595 US9170379B2 (en) 2012-01-11 2012-02-17 Optical fiber connector and assembly method therefor
EP12865259.1A EP2703859A4 (en) 2012-01-11 2012-02-17 OPTICAL FIBER CONNECTOR AND ASSEMBLY METHOD THEREOF

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210008583.3 2012-01-11
CN201210008583.3A CN102520489B (zh) 2012-01-11 2012-01-11 一种光纤连接器及其装配方法

Publications (1)

Publication Number Publication Date
WO2013104136A1 true WO2013104136A1 (zh) 2013-07-18

Family

ID=46291469

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/071272 WO2013104136A1 (zh) 2012-01-11 2012-02-17 一种光纤连接器及其装配方法

Country Status (5)

Country Link
US (1) US9170379B2 (zh)
EP (1) EP2703859A4 (zh)
JP (1) JP5899313B2 (zh)
CN (1) CN102520489B (zh)
WO (1) WO2013104136A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110058363A (zh) * 2019-05-23 2019-07-26 河北华美光电子有限公司 一种光模块
CN113960726A (zh) * 2021-12-21 2022-01-21 南京瑞唐通信设备有限公司 一种lc型光纤连接器

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102565963B (zh) * 2012-02-27 2017-04-26 深圳日海通讯技术股份有限公司 一种高密度光纤连接器及其装配方法
CN102854579B (zh) * 2012-09-06 2016-04-20 深圳日海通讯技术股份有限公司 具有一体式外壳的光纤接入插头
CN104142539B (zh) * 2013-05-07 2017-02-08 富士康(昆山)电脑接插件有限公司 线缆连接器组件
WO2015192362A1 (zh) * 2014-06-19 2015-12-23 深圳日海通讯技术股份有限公司 一种光纤连接器及其组装方法
WO2016095213A1 (en) * 2014-12-19 2016-06-23 Tyco Electronics (Shanghai) Co., Ltd. Hardened fiber optic connector with pre-compressed spring
CN108139547B (zh) * 2015-10-12 2020-09-08 3M创新有限公司 多波导连接器中的光波导定位特征结构
CN108227089A (zh) * 2018-01-17 2018-06-29 苏州科兰光通讯有限公司 一种光纤连接适配器
CN111239915B (zh) * 2019-12-23 2022-03-25 南京续点通信科技有限公司 一种光缆固紧装置以及光纤连接器
CN112099157B (zh) * 2020-09-22 2022-04-15 烽火通信科技股份有限公司 多芯光纤连接头、多芯光纤适配器及多芯光纤连接组件
CN112415670B (zh) * 2020-12-15 2023-02-03 武汉光迅科技股份有限公司 插芯组件、连接器、光纤适配器及光纤接口结构
CN112558232A (zh) * 2020-12-15 2021-03-26 武汉光迅科技股份有限公司 插芯组件、连接器及插芯组件的装配方法
CN114137667B (zh) * 2021-11-05 2023-01-31 烽火通信科技股份有限公司 一种预制成光缆连接器组件、制造方法和工具
CN117310894B (zh) * 2023-11-29 2024-03-08 厦门唯恩电气有限公司 一种水密光纤连接器插头和水密光纤连接器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1121180A (zh) * 1994-06-29 1996-04-24 莫列斯公司 光纤连接器及其制造方法
US6464402B1 (en) * 1999-07-28 2002-10-15 Fitel Usa Corp. Optical fiber connector tuning index tool
CN200947127Y (zh) * 2006-02-27 2007-09-12 吴文军 光纤连接转接器
CN201413419Y (zh) * 2009-03-24 2010-02-24 中航光电科技股份有限公司 一种光缆连接器
CN201464673U (zh) * 2009-06-17 2010-05-12 中航光电科技股份有限公司 光纤连接器及集合式连接器
CN101881865A (zh) * 2010-06-17 2010-11-10 深圳日海通讯技术股份有限公司 一种光纤连接器

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH622743A5 (zh) 1977-09-08 1981-04-30 Oerlikon Buehrle Ag
JPS55149713U (zh) * 1979-04-13 1980-10-28
JPS63256907A (ja) * 1987-04-14 1988-10-24 Hitachi Cable Ltd 多心光コネクタ
US5481634A (en) * 1994-06-24 1996-01-02 At&T Corp. Connector for optical fiber
US5579425A (en) * 1995-08-30 1996-11-26 Lucent Technologies Inc. Anti-snag duplex connector
JP3585762B2 (ja) * 1999-02-16 2004-11-04 株式会社フジクラ 光コネクタ
US6669377B2 (en) * 2001-06-11 2003-12-30 Corning Cable Systems Llc Fiber optic connector and an associated pin retainer
JP4266319B2 (ja) 2002-09-06 2009-05-20 株式会社精工技研 光コネクタプラグ及び光コネクタ
TW549463U (en) * 2002-09-11 2003-08-21 Hon Hai Prec Ind Co Ltd Optical connector
US9250399B2 (en) 2006-08-31 2016-02-02 Optogig, Inc. High density active modular optoelectronic device for use with push-release mechanism and method for using same
JP4833802B2 (ja) * 2006-11-09 2011-12-07 三和電気工業株式会社 光コネクタ連結構造体
JP5172510B2 (ja) * 2007-07-10 2013-03-27 株式会社フジクラ 光コネクタおよび光コネクタの組立方法
JP2009222932A (ja) * 2008-03-14 2009-10-01 Sony Corp コネクタ
US7942591B2 (en) * 2009-04-07 2011-05-17 Tyco Electronics Corporation Bend limiting boot
EP2426535B1 (en) * 2009-04-30 2017-11-08 Adamant Kogyo Co., Ltd. Optical connector plug
JP2011008209A (ja) * 2009-06-26 2011-01-13 Adamant Kogyo Co Ltd 光コネクタプラグ
JP5369053B2 (ja) * 2009-10-28 2013-12-18 Seiオプティフロンティア株式会社 光コネクタ
CN102782548B (zh) * 2010-03-19 2015-06-03 康宁公司 用于电子装置的光纤接口装置
JP5623621B2 (ja) * 2010-03-19 2014-11-12 コーニング インコーポレイテッド 位置決め可能なカバー付き光ファイバインターフェース装置
JP4995305B2 (ja) * 2010-06-04 2012-08-08 サンコール株式会社 2芯型光コネクタユニット

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1121180A (zh) * 1994-06-29 1996-04-24 莫列斯公司 光纤连接器及其制造方法
US6464402B1 (en) * 1999-07-28 2002-10-15 Fitel Usa Corp. Optical fiber connector tuning index tool
CN200947127Y (zh) * 2006-02-27 2007-09-12 吴文军 光纤连接转接器
CN201413419Y (zh) * 2009-03-24 2010-02-24 中航光电科技股份有限公司 一种光缆连接器
CN201464673U (zh) * 2009-06-17 2010-05-12 中航光电科技股份有限公司 光纤连接器及集合式连接器
CN101881865A (zh) * 2010-06-17 2010-11-10 深圳日海通讯技术股份有限公司 一种光纤连接器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2703859A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110058363A (zh) * 2019-05-23 2019-07-26 河北华美光电子有限公司 一种光模块
CN113960726A (zh) * 2021-12-21 2022-01-21 南京瑞唐通信设备有限公司 一种lc型光纤连接器

Also Published As

Publication number Publication date
EP2703859A1 (en) 2014-03-05
CN102520489B (zh) 2016-04-13
JP2014517358A (ja) 2014-07-17
US20140105542A1 (en) 2014-04-17
CN102520489A (zh) 2012-06-27
JP5899313B2 (ja) 2016-04-06
EP2703859A8 (en) 2014-04-30
US9170379B2 (en) 2015-10-27
EP2703859A4 (en) 2015-09-16

Similar Documents

Publication Publication Date Title
WO2013104136A1 (zh) 一种光纤连接器及其装配方法
WO2013127073A1 (zh) 一种高密度光纤连接器及其装配方法
JP4792043B2 (ja) プッシュ−プッシュ式挿入/引抜き機構、mt型コネクタ、及びシャッタ付きアダプタを備える多芯光ファイバ相互接続システム、並びにその使用方法
US8118494B2 (en) Remote grip optical fiber connector
EP3167321B1 (en) Optical ferrule for multi-fiber cable and hardened multi-fiber optic connector therefore
US9915793B2 (en) Removal tool for a fiber optic ferrule alignment sleeve
US20170184800A1 (en) Ferrule for multi-fiber optical connector
AU2005329050A2 (en) Multi-fiber fiber optic receptacle and plug assembly
WO2014036781A1 (zh) 具有一体式外壳的光纤接入插头
WO2019055820A1 (en) OPTICAL FIBER CONNECTOR WITH INTEGRATED WIRELESS RELEASE AND ASSOCIATED ASSEMBLIES
WO2016053674A1 (en) Ferrule for multi-fiber optical connector
CN202433571U (zh) 一种高密度光纤连接器
WO2014036780A1 (zh) 一种改进型光纤接入插头
WO2001033273A1 (fr) Corps de connecteur optique, connecteur optique utilisant ce corps et structure de connexion entre un connecteur optique et un composant optique utilisant le corps
JP5747086B2 (ja) 帯状光ファイバーコネクター
WO2023192537A1 (en) Multi-fiber push on (mpo) connector that is configured to be field assembled after being pushed through a duct
CN112955797B (zh) 具有用于利用缆线护套将连接器从插座释放的夹式推/拉舌片的lc型连接器
WO2006076061A2 (en) Multi fiber optical interconnect system, with push-push type insertion/withdrawal mechanism, mt-type connector and shuttered adapter and method for using same
JP4047104B2 (ja) 光コネクタハウジング
CN202548372U (zh) 一种光纤连接器
CN201749215U (zh) Mtrj型光纤活动连接器
WO2019222646A1 (en) Fiber optic connector

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12865259

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 14119595

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2012865259

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2014516169

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE