CN101866034A - One-Piece Cable Retention Housings for Reinforced External Line Equipment Connectors - Google Patents
One-Piece Cable Retention Housings for Reinforced External Line Equipment Connectors Download PDFInfo
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- CN101866034A CN101866034A CN200910132103A CN200910132103A CN101866034A CN 101866034 A CN101866034 A CN 101866034A CN 200910132103 A CN200910132103 A CN 200910132103A CN 200910132103 A CN200910132103 A CN 200910132103A CN 101866034 A CN101866034 A CN 101866034A
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Abstract
根据本发明的示例实施例，单体固位壳体用来端接光纤电缆(302)。固位壳体附接至电缆(302)内的增强元件(304)，提供抗张强度和进一步与光纤连接器组件的部件相配合的手段。固位壳体被用作将光纤电缆连接器端接和紧固至互补插座或终端的套件的一部分，用于光学接入网络和外部线路设备应用中的分接电缆部署。
According to an example embodiment of the invention, a one-piece retention housing is used to terminate fiber optic cables (302). The retention housing is attached to the strength member (304) within the cable (302), providing tensile strength and a means to further mate with components of the fiber optic connector assembly. Retention housings are used as part of kits for terminating and securing fiber optic cable connectors to complementary receptacles or terminals for drop cable deployment in optical access network and outside line equipment applications.
Description
Technical field
Present invention relates in general to the joints of optical fibre, and more specifically, the tapping cable that relates in optics access network and the application of outside line equipment is disposed the reinforced connector of usefulness.
Background technology
Optical communication network is partly assembled by connect fiber segment between two or more positions.Fusion bond can provide the long best approach that is linked together of optical fiber exhibition, especially when exhibition length will for good and all connect.Yet, there are many situations, optical fiber connect to need easily can to construct so that be connected to different terminals point as required and/or provide for fiber optic cables in the outdoor location of stress relief or axial support again especially therein.In this installation situation, the fusion bond method may not be actual selection, if especially tie point is difficult to touch (for example, in inspection hole or be positioned antenna terminal place).Therefore, in order to improve the reliability of connection, and for the installation method that can construct again is provided, dispose for tapping cable and to use fiber optic cables and corresponding cooperation terminal usually with factory's termination, environmental sealing and connector of being reinforced.
Several connector manufacturers and sale person are provided for reinforced connector and the associated terminal and the adapter of fiber-to-the-subscriber (FTTP) or fiber-to-the-home (FTTH) application.U.S. Patent No. 7,090,406 and U.S. Patent No. 7,113,679 connector and the adapter of example are shown, they are used for the many existing outside line equipment tapping cable that optic network terminal (OTN) is connected with the multiport terminal is disposed.Comprise the SC connector plug that is closed in the pronged insertion shell at the example connector shown in these patents, housing is equipped with two silicon O shape rings so that waterproof sealing to be provided.Cable retention is clamped between the two-piece type crimping main body of being surrounded by the metallic coil side ring and obtains via optical fiber and cable being strengthened element.With optical fiber with strengthen the process need several steps that element is fastened on two-piece type " clamping " the crimping main body connector of prior art, comprise peeling, side cut and prepare cable and optical fiber; Epoxy resin is applied to the crimping main body; Precuring epoxy resin; The exposed optical fiber of feeding passes the connector sub-component; Assembling connector sub-component, cable and enhancing element between crimping main body holder; Use and with crimping ring crimping; Back cured epoxy resin; Adhesion, polishing and inspection.Each of above-mentioned steps is all very consuming time and can require masterful technique person extremely carefully to avoid damaging frangible optical fiber during process.
Therefore, need a kind of alternative connector design, it makes the technician more easily assemble, and can eliminate one or more required number of assembling steps, and can reduce number of components.
Summary of the invention
According to example embodiment of the present invention, provide a kind of monomer retention housing to be used for terminated cable, cable has at least one and strengthens element and at least one optical waveguide.Retention housing comprises having the elongation main body that extends to the longitudinal axis of second end from first end.This main body is by extending to second end from first end and being configured to admit at least one waveguide cavity of optical waveguide to limit.This main body also by from first end to second end extend and be configured to described at least one strengthen that element is fastened to housing at least one strengthen component cavity and limit.This main body comprises the crimp regions of arranging at least a portion length of the enhancing component cavity of second end extension from first end along roughly.This main body also comprises the connector chamber that is disposed generally on second end and is configured to admit the optical conenctor sub-component of termination optical waveguide.
According to example embodiment of the present invention, the monomer retention housing is used for terminating optical cable.Retention housing is attached to the enhancing element in the cable, the means that tensile strength are provided and further match with the parts of fiber optic connector assembly or external member, be used for the fiber optic cable connectors termination be fastened to complimentary socket or terminal.
The monomer retention housing can comprise having the elongation main body that extends to the longitudinal axis of second end from first end.This main body can limit from first end and extend to second end and be configured to admit at least one waveguide cavity of optical waveguide.This main body also can comprise at least one enhancing component cavity of extending and being configured to described at least one enhancing element is fastened to housing from first end to second end.This main body also can comprise the crimp regions of arranging at least a portion length of the enhancing component cavity of second end extension from first end along roughly; And, the connector chamber that is disposed generally on second end and is configured to admit the optical conenctor sub-component of termination optical waveguide.
Description of drawings
Referring now to accompanying drawing, accompanying drawing is not must be in proportion, and wherein:
Fig. 1 illustrates the exemplary connector assembly that is engaged to example adapter or terminal assembly according to illustrated embodiments of the invention.
Fig. 2 A is the skeleton view according to the connector after the assembling of illustrated embodiments of the invention.
Fig. 2 B is the decomposition diagram that comprises the connector component of monomer retention housing according to illustrated embodiments of the invention.
Fig. 3 is the skeleton view according to the fiber optical cable assembly of illustrated embodiments of the invention.
Fig. 4 is fiber optic cables, the monomer retention housing according to illustrated embodiments of the invention, and the decomposition diagram of optical conenctor sub-component.
Fig. 5 A is the first end skeleton view according to the monomer retention housing of illustrated embodiments of the invention.
Fig. 5 B is the second end skeleton view according to the monomer retention housing of illustrated embodiments of the invention.
Fig. 5 C is according to the cross-sectional view of illustrated embodiments of the invention monomer retention housing along Fig. 5 B center line 5C '-5C ' intercepting.
Fig. 5 D is according to the cross-sectional view of illustrated embodiments of the invention monomer retention housing along Fig. 5 B center line 5D '-5D ' intercepting.
Fig. 5 E is first end-view according to the monomer retention housing of illustrated embodiments of the invention.
Fig. 5 F is second end-view according to the monomer retention housing of illustrated embodiments of the invention.
Fig. 6 is being used for terminating optical cable and making the exemplary process flow diagram of fiber optic cable connectorsization according to illustrated embodiments of the invention.
Embodiment
Accompanying drawing hereinafter with reference to the embodiment of the invention shown in it is described more completely to embodiments of the invention.Yet the present invention is can be many multi-form to be specialized and should not be configured to be limited to illustrated embodiment here; But, provide these embodiment to make that the disclosure will be thorough and complete, and will fully scope of the present invention be pass on to those skilled in the art.Identical numeral relates to components identical in the text.
Embodiments of the invention make can use the monomer retention housing.The retention housing of one can be used in the termination of optical cable, and it can engage the enhancing element of optical cable, keeps with the machinery that is provided for reinforced optical connector assembly, and further is provided for the stress relief of relative photo cable assembly inner fiber.
The termination of optical fiber and connector is because the cause of the assembling split joints of optical fibre is difficult tasks, especially when relating to a lot of step, and at exposed outstanding optical fiber end when each step is broken easily.According to embodiments of the invention, the retention housing of one can reduce step and the time relevant with the assembling of connector by the advantage of monomer whose design, can reduce the quantity of required parts, and can reduce the risk that optical fiber breaks at assembly process.
Fig. 1 illustrates the connector end welding system 100 of example, and it comprises fiber optical cable assembly 102, the connector assembly 104 that cooperates and the terminal assembly 106 that cooperates.Connector end welding system 100 can be used for the outside line equipment cable distribution of optics access network for example to be disposed, wherein reinforced connector can be used to multiport terminal (be positioned on the electric pole usually or in the underground hand hole) be positioned the optic network terminal (ONT) that the user locates and be connected.Plug-in connector with cooperate cooperation between the socket to use to be threadedly engaged with nut fastening.Be used for that plug-in connector is fastened to the alternative method that cooperates socket and can comprise for example lock of snap-out release, push-and-pull breech lock, buckle and quartern rotation.Connector end welding system 100 allows the installer not having to carry out the optics connection under certain skills, equipment or the training.
Fig. 2 A is the skeleton view according to the example optical connector assembly 200 of illustrated embodiments of the invention, it comprise fiber optical cable assembly 102, in be lined with one section heat-shrinkable tube 201, protective cover assembly 202, connector shell 204, retention nut 206 and the optical conenctor sub-component 208 of bonding agent.Heat-shrinkable tube 201 can be attached on the part of fiber optical cable assembly 102 and connector shell 204, so that connector shell 204 is fastened to fiber optical cable assembly 102.
Fig. 2 B is the decomposition diagram according to the optical connector assembly 200 of Fig. 2 A of illustrated embodiments of the invention, and it comprises heat-shrinkable tube 201, fiber optical cable assembly 102, protective cover assembly 202, connector shell 204, retention nut 206, optical conenctor sub-component 208, O shape ring 210 and monomer retention housing 212.As with respect to shown in Fig. 2 A, connector shell 204 can be operated the axle collar that surrounds and engage on the monomer retention housing 212.Retention nut 206 can surround and joining connector housing 204 on the axle collar, thereby and connector assembly 200 can be fastened to the cooperation terminal socket.
Fig. 3 illustrates for the example of pre-prepd fiber optical cable assembly 102 with the connector assembling.Exemplary plot comprises cable cover(ing) 302, strengthens element 304, fiber core pipe 306, the optical fiber 310 with coating and one section nuditing fiber 312 that does not have coating.As shown in Figure 3, can comprise optional one section separator tube 308.Separator tube 308 can surround optical fiber 310 and partly in the annular region between the internal diameter of the external diameter of retraction optical fiber 310 and fiber core pipe 306.Separator tube 308 can be for optical fiber provides protection during the connector assembling process, and also can be provided for making the barrier of undesirable epoxy resin away from optical fiber.Separator tube 308 can be inserted on the optical fiber 310 before on the end that optical conenctor sub-component 208 is assembled to optical cable.In another example embodiment, separator tube 308 can insert in the optical conenctor inner shell, as discussing with reference to Fig. 4.
Fig. 4 illustrates the decomposition view of fiber optical cable assembly 102, monomer retention housing 212 and optical conenctor sub-component 208.According to embodiments of the invention, the part of fiber optical cable assembly 102 can slip in the aperture of first end of monomer retention housing 212, allow nuditing fiber 312 outstanding second ends that pass monomer retention housing 212, be used for the aperture of feeding by the cover 408 of optical conenctor sub-component 208.With respect to the reference of Fig. 3 institute, in example embodiment, separator tube 308 can be inserted in the optical conenctor inner shell 406 of optical conenctor sub-component 208 before optical cable assembly 102 inserts monomer retention housing 212 as top.Nuditing fiber 312 can be given prominence to second end that passes monomer retention housing 212, and can be directed into separator tube 308 to help that fiber guides is passed the aperture that overlaps in 408.
Referring again to Fig. 4, optical conenctor sub-component 208 can engage with monomer retention housing 212 via optical conenctor sub-component aperture 410.First end of optical conenctor sub-component 208 (optical conenctor inner shell 406 parts that comprise optical conenctor sub-component 208) is partly in second end of retraction monomer retention housing 212 and cooperate with it, and can remain in matching relationship with the maintenance flange 404 that engages optical conenctor inner shell 406 by locking anchor clamps 402 are inserted anchor clamps hole 412, thereby optical conenctor sub-component 208 is fastened in the monomer retention housing 212.According to example embodiment, locking anchor clamps 402 are alternately taked the form of retention pin.According to another example embodiment, optical conenctor sub-component 208 available epoxies are fastened to monomer retention housing 212, thereby needing to avoid locking anchor clamps 402 or retention pin.According to another example embodiment, can use deformable latch edge of spring or hasp in the optical conenctor sub-component aperture 410 that is built in monomer retention housing 212 that optical conenctor sub-component 208 is fastened to monomer retention housing 212.The deformable latch edge of spring can engage with maintenance flange 404 and for good and all or temporarily keep optical conenctor sub-component 208, comes fastening optical conenctor sub-component 208 so that need not with locking anchor clamps 402 and/or epoxy resin.
Fig. 5 A-F illustrates various exemplary perspective view, cross-sectional view and the end-view according to the monomer retention housing 212 of the embodiment of the invention.Fig. 5 A illustrates the exemplary perspective view that fiber optical cable assembly 102 wherein can insert the monomer retention housing 212 in the housing.Fig. 5 A illustrates and inserts groove 508, be used to insert the enhancing element aperture 504 that strengthens element 304 and be used to insert the fiber optic aperture 506 that comprises fiber core pipe 306, separator tube 308, has the combination of fiber-optic of the optical fiber 310 of coating and nuditing fiber 312.Insert groove 508 by arc, preferably the surface of taper shape or bulb-shaped recess limits.In addition, Fig. 5 A illustrates and is used for monomer retention housing 212 is remained on the retention housing axle collar 502 that key is arranged in the connector shell 204.There is the retention housing axle collar 502 of key to engage,, and stops monomer retention housing 212 around longitudinal axis 534 rotations so that the tension force maintenance of monomer retention housing 212 is provided with the cooperation shoulder of coupling in the connector shell 204.Fig. 5 A also illustrates example epoxy resin aperture 414, and this will further explain with reference to Fig. 5 C below.In Fig. 5 E and 5F, further show first end-view and second end-view of monomer retention housing 212 respectively.
Fig. 5 B illustrates example monomer retention housing 212, wherein show optical conenctor sub-component 208 can be when 410 places, optical conenctor sub-component aperture be inserted into housing and be maintained in the housing skeleton view of housing.In Fig. 5 C and 5D, further show monomer retention housing 212 as by observation line 5C '-C ' and the indicated sectional view of 5D '-5D '.
Fig. 5 C illustrates according to the monomer retention housing 212 of the embodiment of the invention cross-sectional view along Fig. 5 B center line 5C '-5C ' intercepting.Monomer retention housing 212 can be described with reference to Fig. 5 C with regard to functional longitudinal region 510,512,514 and 516.Insert zone 510 and can comprise groove 508, enhancing element aperture 504, fiber optic aperture 506 and the conical transition portion 518 of inserting.According to embodiments of the invention, insert zone 510 as at least two purposes: (1) is provided for the enhancing element 304 of fiber optical cable assembly 102 that will preparation and the means that fiber core pipe 306 is admitted and is inducted in respective aperture 504 and 506, and transitional region is provided (2) so that connector shell 204 is inserted in the end of monomer retention housing 212.
Referring again to Fig. 5 C, according to embodiments of the invention, monomer retention housing 22 also can comprise enhancing element crimping and epoxy regions 512.This functional area can comprise enhancing component cavity 520, optical fiber cavity 522 that is associated with fiber optic aperture 506 that is associated with enhancing element aperture 504 and the epoxy resin chamber 524 that is associated with epoxy resin aperture 414.According to embodiments of the invention, strengthen element crimping and epoxy regions 512 and be used for one or more following purposes: (1) provides and strengthens element 304 and be accepted in wherein aperture and chamber; (2) be provided for admitting the aperture of the epoxy resin of fastening enhancing element 304; (3) be provided for crimping to the deformable body surface that strengthens on the element 304; (4) be provided for capillary action ground enhancing element 304 surface is on every side arrived in epoxy resin transmission (wick); (5) provide via strengthening component cavity 520 usefulness epoxy resin and will strengthen the surface that element 304 is fastened to monomer retention housing 212 in addition; And (6) are provided for making optical fiber component (optical fiber 310 of fiber core pipe 306, separator tube 308, coating and nuditing fiber 312 for instance) to pass the path of at least a portion of monomer retention housing 212.According to embodiments of the invention, strengthening component cavity 520 can extend in the main body of monomer retention housing 212 fully, and so that enough epoxy resin and crimping surfaces to be provided, and it can stop before optical conenctor zone 516.According to embodiments of the invention, monomer retention housing 212 can comprise the alignment mark on the main body outside surface, with the optimum position of indication crimping (axis 534 arrange and in strengthening element crimping and epoxy regions 512) along the longitudinal.According to embodiments of the invention, the epoxy resin chamber 524 that is connected with the outside surface that strengthens component cavity 520 and monomer retention housing 212 can radially be extended from the longitudinal center that strengthens component cavity 520.Therefore, any amount (but preferably be less than 6) epoxy resin chamber 524 can be defined in the main body of monomer retention housing 212 and be arranged in the position of one or more expections along strengthening element crimping and epoxy regions 512.According to a preferred embodiment of the invention, the diameter in epoxy resin chamber 524 is roughly the same with the diameter that strengthens component cavity 520.According to another embodiment of the invention, the diameter in epoxy resin chamber 524 can be less than the diameter that strengthens component cavity 520.According to another embodiment of the invention, the diameter in epoxy resin chamber 524 can be greater than the diameter that strengthens component cavity 520.According to another embodiment of the invention, epoxy resin chamber 524 can comprise from strengthening the elongate slot that component cavity 520 is extended.According to embodiments of the invention, epoxy resin chamber 524 can be along strengthening element crimping and epoxy regions 512 and being positioned the position of one or more expections can strengthen pattern that crimping handles.
Continuation is with reference to Fig. 5 C, and according to example embodiment of the present invention, monomer retention housing 212 can comprise that also gentle the breaking through of optical fiber cross zone 514.This functional area can be provided for the path that optical fiber sub-component (separator tube 308, the optical fiber 310 with coating and nuditing fiber 312 for instance) passes monomer retention housing 212.Optical fiber is gentle to be broken through and crosses zone 514 and optical fiber cavity 522 can be connected with optical conenctor sub-component chamber 526.Transitional region 514 can comprise the optical fiber cavity 530 that diameter reduces, and it for example provides support for optical fiber and coating 310 via separator tube 308.The optical fiber cavity 530 that diameter reduces can be coaxial with optical fiber cavity 522 and optical conenctor sub-component chamber 526, and if its diameter less than the diameter of optical fiber cavity 522, then it can engage via optical fiber cavity tapered portion 528.
Referring again to Fig. 5 C, according to embodiments of the invention, monomer retention housing 212 can also be to be characterised in that optical connector assembly functional area 516 can comprise optical conenctor sub-component aperture 410, optical conenctor sub-component chamber 526, holder aperture 412, fixture cavity 532 and the retention housing axle collar 502 that key is arranged.When being associated with epoxy resin chamber 524 and fixture cavity 532, the use of term " chamber " is not to necessarily require cylindrical cavity or passage, but also can comprise other shape, for example elongate slot, or stereo groove.Explain with reference to Fig. 4 that as top optical conenctor sub-component 208 can engage with monomer retention housing 212 via optical conenctor sub-component aperture 410.The optical conenctor inner shell 406 of optical conenctor sub-component 208 is partly in the optical conenctor sub-component chamber 526 in the retraction monomer retention housing 212 and cooperate with it, and can be held with the maintenance flange 404 that engages optical conenctor sub-component 208 by locking anchor clamps 402 are inserted in the holder aperture 412, thereby optical conenctor sub-component 208 is fastened in the monomer retention housing 212.According to another example embodiment, optical conenctor sub-component 208 can use the spring deformable latch edge or the hasp in the optical conenctor sub-component aperture 410 that is built in monomer retention housing 212 to be fastened to monomer retention housing 212.Spring deformable latch edge can engage with maintenance flange 404 and for good and all or temporarily keep optical conenctor sub-component 208, so that need not with locking anchor clamps 402 and/or the fastening optical conenctor sub-component 208 of epoxy resin.There is the retention housing axle collar 502 of key can be configured to monomer retention housing 212 is remained in the connector shell 204.There is the retention housing axle collar 502 of key also to can be used to limit or avoid the rotation of monomer retention housing 212 in connector shell 204.
Fig. 5 D illustrates according to the example side cross-sectional view of illustrated embodiments of the invention monomer retention housing 212 along line 5D '-5D ' intercepting of Fig. 5 B.As shown, epoxy resin chamber 524 can be connected to the end face of monomer retention housing 212 and strengthen component cavity 520.
Can under the help of Fig. 5 D, understand other structure connectivity information.For example, holder aperture 412 can be positioned on any one or a plurality of side of monomer retention housing 212, inserts easily and removes to allow anchor clamps 402.Therefore, fixture cavity 532 can vertically extend through monomer retention housing 212 with longitudinal axis 534.Holder aperture 412 is only in another example embodiment on a side therein, fixture cavity 532 can not extend to the bottom always from the top, but for example can stop at an approximate depth place (shown in the holder aperture stop line 538 of example) of for example passing housing.
Fig. 5 E illustrates example first end-view according to the monomer retention housing 212 of illustrated embodiments of the invention.The example that Fig. 5 E illustrates the element that cooperatively interacts (comprise and strengthen optical fiber cavity 530, optical fiber cavity tapered portion 528, the retention housing axle collar 502 that key is arranged that element aperture 504 and chamber 520, fiber optic aperture 506 and chamber 522, diameter reduce and insert groove 508) is relative position radially or laterally.Comprise collar key 542 at other element shown in this accompanying drawing, it can be the planar section that has on the retention housing axle collar 502 of key.Collar key 542 can match with connector shell 204, to avoid the axial rotation of monomer retention housing 212.In other example embodiment shown in Fig. 5 E, strengthen element aperture 504 and can comprise that transitting to the diameter that strengthens component cavity 520 inserts the guiding segments 540 that the size in the monomer retention housing 212 increases slightly so that strengthen element 304.According to example embodiment of the present invention, strengthening component cavity 520 and optical fiber cavity 522 can be overlapping under the situation of the sidewall that the chamber is separated.
Fig. 5 F illustrates example second end-view according to the monomer retention housing 212 of illustrated embodiments of the invention.The example that Fig. 5 F illustrates the element (comprising optical fiber cavity 522, optical conenctor sub-component aperture 410 and optical conenctor sub-component chamber 526 and collar key 542) that cooperatively interacts is relative position radially or laterally.Another element shown in this figure is holder aperture surface 544.According to example embodiment of the present invention, holder aperture surface 544 can be bending or arc, shown in Fig. 5 C.According to other example embodiment, holder aperture surface 544 can be the plane or rectangle, and can have another surfaceness or other surface features, to help the maintenance of anchor clamps 402 according to other example embodiment.
The exemplary method that is used for termination and connector fiber optic cables now with reference to the flow chart description of Fig. 6.According to example embodiment, strengthen element 304, optical fiber 310,312, fiber core pipe 306 and cable cover(ing) and can and be prepared into by deburring and suitably connect with monomer retention housing 212, optical conenctor sub-component 208 and other connector shell 204 parts and engage.Unless indicate in addition, the end of the length reference cable sheath 302 of specific here deburring and peeling, and be example lengths.With square frame 602 beginnings, and generally with reference to Fig. 1-5, can by outside optical fiber cable shell or sheath 302 are carried out peeling and deburring, will strengthen element 304 deburrings to about 20 millimeters, with 306 deburrings of fiber core pipe to about 18 millimeters, with optical fiber 310 deburrings to about 55 millimeters, with the end peeling of optical fiber and coating 310 to remove the optical fiber coating, stay about 40 millimeters clad optical fiber and about 15 millimeters nuditing fiber 312 in the end and clear up the end that nuditing fiber 312 prepares fiber optic cables carefully.As becoming significantly following, the various embodiment of optical fiber preparation process can help further assembling.For example, in one embodiment, but strengthen element 304 deburrings, insert in the monomer retention housing 212, once insert an element, rather than insert simultaneously so that will strengthen element 304 to the length that does not wait.
In square frame 604, continue to show the method that optical fiber component 306,310 and 312 is attached into monomer retention housing 212.The element that strengthens element 304 and optical fiber component 306,310 and 312 can be inserted in the fiber optic aperture 506 at the first end place of monomer retention housing 212.Optical fiber component 306,310 and 312 can be inserted into and pass fiber optic aperture 506 and enter in the optical fiber cavity 522.When optical fiber component 306,310 and 312 was inserted into optical fiber cavity 522, enhancing element 304 can be inserted into to pass to strengthen element aperture 504 and enter and strengthen in the component cavity 520.Mention as earlier paragraphs, but strengthen element 304 deburrings, insert in the monomer retention housing 212, once insert an element, rather than insert simultaneously so that will strengthen element 304 to unequal length.According to one embodiment of present invention, in the time of in strengthening element 304 insertion enhancing component cavity 520, the one or both ends that strengthen element 304 can arrive the end that strengthens component cavity 520, and can limit and further advance.Yet optical fiber component 306,310 and 312 extensible second ends that pass monomer retention housing 212 are used for further coil and cross optical conenctor sub-component 208.
In square frame 606, continue to show the process that optical fiber component 306,310 and 312 is attached to optical conenctor sub-component 208.For example can use syringe epoxy resin to be applied to inside first end of the optical conenctor sub-component 208 at optical conenctor inner shell 406 places.About 1 inch length of separator tube 308 can be inserted in inside first end of optical conenctor sub-component 208 at optical conenctor inner shell 406 places fully.The nuditing fiber 312 that goes out from second distal process of monomer retention housing 212 can insert optical conenctor sub-component 208 that epoxy resin fills then, pass separator tube 308 and coil is crossed cover 408.Square frame 606 continues by optical conenctor sub-component 208 is further inserted optical conenctor sub-component aperture 410, allow nuditing fiber 312 to continue to slide simultaneously and pass the cover 408 of optical conenctor sub-component, so that match with the gentle edge that crosses near the optical conenctor sub-component chamber 526 regional 514 of breaking through of optical fiber in the end of optical conenctor inner shell 406.This action also can promote separator tube 308 and further enter fiber core pipe 306.The globule of epoxy resin can be positioned over the place, end of cover 408, and at this place, end, nuditing fiber 312 is outstanding from overlapping 408.After solidifying, this globule of epoxy resin can provide protection and support in the end for nuditing fiber during adhesion and polishing.
In square frame 608, continue, thus can be by the maintenance flange 404 that anchor clamps 402 insert fixture cavity 532 joint optical conenctor inner shells 406 being fastened on optical conenctor sub-component 208 in the monomer retention housing 212 via holder aperture 412.According to other embodiment, for example optical conenctor sub-component 208 can for example epoxy resin or retention pin be come fastening with other means.
Referring now to square frame 610, deformable monomer retention housing 212 can mechanically be fastened on the enhancing element 304 that strengthens in the component cavity 520 by in crimping and epoxy regions 512 main body of monomer retention housing 212 being carried out crimping, collapses at least in part on enhancing element 304 so that strengthen component cavity 520.The crimping mechanism that is used to carry out this step can be that hand, the pin operation and/or pneumatic, and can provide sufficient power under the situation of not damaging optical fiber housing is carried out crimping.Crimping mechanism also can be provided for the device of directed crimping (including, but are not limited to circle or hexagon crimping surface).
Continue in square frame 612, the epoxy resin injectable is gone in the epoxy resin aperture 414.Epoxy resin can flow through epoxy resin chamber 524 and arrive enhancing component cavity 520, and arrives enhancing element 304.Capillary action can be distributed in the part of epoxy resin in the space between internal diameter that strengthens component cavity 520 and the external diameter that strengthens element 304.Capillary action also can be by further being strengthened the viscosity of assembly heating with initial reduction epoxy resin.Further heating can be with epoxy resin cure in strengthening component cavity 520, and the curable globule that is applied to the epoxy resin of cover end, described in top square frame 606.According to example embodiment of the present invention, the size of the diameter in epoxy resin chamber 524 can be defined as for example optimum capacity of epoxy resin, so that the epoxy resin of maximum can carry out capillary action along strengthening element 304 under the situation of not leaking out enhancing element aperture 504.According to other example embodiment of the present invention, one or more epoxy resin aperture 414 and chamber 524 can be used for each when needed and strengthen component cavity 520, so that strengthen element 304 the multiple spot path is provided for epoxy resin being guided in the respective element chamber 524 each.According to another example embodiment of the present invention, epoxy resin can be imported into and insert in the groove 508, and capillary action goes into to strengthen in the component cavity 520 fully.In this embodiment, can cancel epoxy resin aperture 414 and chamber 524.
Referring now to square frame 614, can be to adhering, polish and check from the end of overlapping 408 nuditing fibers of giving prominence to 312.Second end of the first end pluggable connector housing 204 of monomer retention housing 212 then, the point that has the retention housing axle collar 502 of key to engage with corresponding cooperation shoulder in the connector shell 204 with arrival is shown in Fig. 2 A.Heat-shrinkable tube can slip over the rear end of connector shell 204, and after being heated, this heat-shrinkable tube is collapsible so that connector shell 204 is fastened to fiber optical cable assembly 102.Retention nut 206 can slip over connector shell 204 and engage with the O shape ring 210 of the contiguous connector shell axle collar 207 up to second end of retention nut 206.Protective cover 202 can insert above heat-shrinkable tube 201 and engage first end of retention nut 206 up to it.
According to the alternate embodiment of this method, epoxy resin can be applied to before or after the crimping step and strengthen element 304.
In the front of number of assembling steps is described, in square frame 604, be understood that especially monomer retention housing 212 can provide the remarkable advantage of comparing the split housing with regard to the easiness of assembling.Optical fiber is fastened to minimizing of the required number of components of housing is used for reducing the difficulty of handling various parts.Monomer retention housing 212 and after fastening, being convenient to the epoxy resin capillary action to strengthening on the element 304 with crimping, and therefore also can eliminate required in addition portion of time of precuring epoxy resin and relevant risk.
According to example embodiment of the present invention, monomer retention housing 212 can be made by the stainless wrought metal of similar anodized aluminum, nickel-plated brass or metal injection-molding.According to other example embodiment of the present invention, monomer retention housing 212 can or have by engineering plastics and is fit to anti-open or any material of shear strength performance is made.According to example embodiment of the present invention, monomer retention housing 212 at least in part can be by the standard mechanical process technology manufacturing that comprises for example turning, milling and boring.Monomer retention housing 212 alternatively can be by injection-molded metal or plastics manufacturing.According to example embodiment of the present invention, monomer retention housing 212 can use injection-molded and the combination standard mechanical process technology is made.According to example embodiment, monomer retention housing 212 can comprise veined or not have the surface of texture.
According to example embodiment, epoxy resin can be used for that enhancing element 304 is fastened to monomer retention housing 212 and be used for clad optical fiber 310 and not clad optical fiber 312 be fastened in the optical conenctor sub-component 208.Preferred epoxy resin is heat-setting, but also for example can comprise: anaerobic adhesive, bi-component epoxide-resin, low viscosity epoxy resin or high-viscosity epoxy resin.
According to example embodiment, the present invention can be the part of retention housing or connector external member.Housing can comprise monomer retention housing 212, and can comprise optics anchor clamps 402.The connector external member can comprise monomer retention housing 212, anchor clamps 402, heat-shrinkable tube 201, protective cover assembly 202, connector shell 204, retention nut 206, optical conenctor sub-component 208, O shape ring 210, dust cap and/or be used for dust cap is attached to the rope of connector shell 204.
Having benefited under the instruction that aforementioned description and relevant drawings provide, those skilled in the art in the invention will understand many modification of the present invention and other embodiment.Therefore, will appreciate that the invention is not restricted to disclosed specific embodiment and modification and other embodiment should comprise within the scope of the appended claims.Although adopted particular term here, they only are to be used for meaning rather than restrictive purpose general and that describe.
Claims (10)
1. monomer retention housing (212) that in terminated cable (102), uses, described cable (102) has at least one and strengthens element (304) and at least one optical waveguide (312); Described retention housing (212) comprising:
Have the elongation main body that extends to the longitudinal axis (534) of second end from first end, described main part limitation:
Extend to described second end and be configured to admit at least one waveguide cavity (522) of described optical waveguide (312) from described first end;
Extend and be configured to described at least one enhancing element (304) is fastened at least one enhancing component cavity (520) of described retention housing (212) to described second end from described first end;
Along the crimp regions (512) of roughly arranging at least a portion length of the described enhancing component cavity (520) of described second end extension from described first end; And
The connector chamber (526) that is disposed generally on described second end and is configured to admit the optical conenctor sub-component (208) of the described optical waveguide of termination (312).
2. according to the retention housing (212) of claim 1, wherein said main part limitation one outside surface, and wherein said main body also limits the fixture cavity (532) that radially extends and be connected with described outside surface from described longitudinal axis (534), and wherein said fixture cavity (532) is configured to admit the anchor clamps (402) that are used for fastening described optical conenctor sub-component (208).
3. according to the retention housing (212) of claim 1, wherein said main part limitation one outside surface, and wherein said main body also limit from described outside surface extend to described at least one strengthen at least one epoxy resin chamber (524) of component cavity (520).
4. according to the retention housing (212) of claim 1, comprise that at least two strengthen component cavity (520), wherein said enhancing component cavity (520) is arranged symmetrically around described waveguide cavity (522).
5. according to the retention housing (212) of claim 1, wherein said main body can be out of shape in described crimp regions (512) at least.
6. according to the retention housing (212) of claim 1, wherein said at least one enhancing component cavity (520) stopped before described second end.
7. according to the retention housing (212) of claim 1, wherein said main body is a metal.
8. according to the retention housing (212) of claim 1, wherein said waveguide cavity (522) is connected with described connector chamber (526).
9. according to the retention housing (212) of claim 1, wherein said main part limitation one surface, and wherein said surface is an anodized surface.
10. method (600) that is used for terminating optical cable (102), described method comprises:
Prepare described fiber optic cables (102), strengthen element (304) and optical fiber (310) to expose at least one;
Monomer retention housing (212) is set, and described retention housing (212) comprising:
Have the elongation main body that extends to the longitudinal axis (534) of second end from first end, described main part limitation:
Extend to described second end and be configured to admit at least one waveguide cavity (522) of optical waveguide (310) from described first end;
Extend and be configured to described at least one enhancing element (304) is fastened at least one enhancing component cavity (520) of described housing (212) to described second end from described first end;
Along the crimp regions (512) of roughly arranging at least a portion length of the described enhancing component cavity (520) of described second end extension from described first end; And
The connector chamber (526) that is disposed generally on described second end and is configured to admit the optical conenctor sub-component (208) of the described optical waveguide of termination (312);
Described fiber optic cables (102) are inserted described first end of described monomer retention housing (212), described at least one the enhancing element (304) that wherein exposes is inserted in described at least one enhancing component cavity (520), and described at least one optical fiber (310) that exposes is inserted in the described waveguide cavity (522), makes the part of described optical fiber (310) extend beyond described second end;
The part that described optical fiber (312) is extended beyond described second end is inserted in the connector sub-component (208);
Described connector sub-component (208) is inserted and is fastened in the described monomer retention housing (212);
Described optical fiber (310) and described enhancing element (304) are fastened in the described monomer retention housing (212); And
Described monomer retention housing (212) is inserted in the external shell guard shield (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910132103A CN101866034A (en) | 2009-04-17 | 2009-04-17 | One-Piece Cable Retention Housings for Reinforced External Line Equipment Connectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910132103A CN101866034A (en) | 2009-04-17 | 2009-04-17 | One-Piece Cable Retention Housings for Reinforced External Line Equipment Connectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101866034A true CN101866034A (en) | 2010-10-20 |
Family
ID=42957833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910132103A Pending CN101866034A (en) | 2009-04-17 | 2009-04-17 | One-Piece Cable Retention Housings for Reinforced External Line Equipment Connectors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101866034A (en) |
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Application publication date: 20101020 |