CN111399133A - L C fiber connector and lock pin assembly thereof - Google Patents
L C fiber connector and lock pin assembly thereof Download PDFInfo
- Publication number
- CN111399133A CN111399133A CN202010327760.9A CN202010327760A CN111399133A CN 111399133 A CN111399133 A CN 111399133A CN 202010327760 A CN202010327760 A CN 202010327760A CN 111399133 A CN111399133 A CN 111399133A
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- Prior art keywords
- optical fiber
- butt joint
- field
- ferrule
- field optical
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3867—Details of mounting fibres in ferrules; Assembly methods; Manufacture comprising air venting holes
Abstract
The invention relates to an L C optical fiber connector and an insert core assembly thereof, wherein the insert core assembly of a L C optical fiber connector comprises a pre-buried optical fiber insert core, a field optical fiber insert core and a butt joint pipe, wherein the pre-buried optical fiber insert core is internally provided with a pre-buried optical fiber through hole extending along the axial direction of the pre-buried optical fiber insert core, the field optical fiber insert core is in butt joint with the pre-buried optical fiber insert core, the field optical fiber insert core is provided with a field optical fiber through hole extending along the axial direction of the field optical fiber insert core, the field optical fiber through hole is used for penetrating a field optical fiber, the field optical fiber through hole and the pre-buried optical fiber through hole are coaxially arranged, the butt joint pipe is sleeved at the butt joint part of the field optical fiber insert core and the pre-buried optical fiber insert core, an exhaust gap is arranged between the butt joint part and the butt joint pipe inner wall, and/or the butt joint pipe.
Description
Technical Field
The invention relates to an L C optical fiber connector and a ferrule assembly thereof.
Background
At present, with the rapid development of optical fiber communication technology, PON technology has become the most important solution from fiber to the home worldwide. And the optical fiber connector which can be used for on-site rapid construction can greatly reduce the wiring difficulty and improve the efficiency of on-site construction.
Chinese patent application publication No. CN110174731A discloses an in-situ optical fiber connector, which includes a front shell, a rear shell, and a fast terminating assembly that is press-fitted between the two shells, where the fast terminating assembly includes a switching pin, a butt pipe, and an in-situ optical fiber component, the switching pin includes a ferrule shell and a prefabricated optical fiber ferrule body disposed in the ferrule shell, and a prefabricated optical fiber is inserted in the prefabricated optical fiber ferrule body; the field optical fiber component comprises a mounting sleeve and a field optical fiber inserting core body, the mounting sleeve is fixed on the field optical fiber inserting core body, the tail part of the mounting sleeve is provided with a flaring structure for guiding the field optical fiber to penetrate, the field optical fiber inserting core body and the prefabricated optical fiber inserting core body are jointed and butted, and the butt joint pipe is sleeved outside the field optical fiber inserting core body and the prefabricated optical fiber inserting core body to prevent the field optical fiber inserting core body and the prefabricated optical fiber inserting core body from moving along the radial direction of the. The field optical fiber insertion core body is internally provided with a field optical fiber perforation which is arranged corresponding to the prefabricated optical fiber, and the butt joint of the field optical fiber and the prefabricated optical fiber is realized after the field optical fiber penetrates into the field optical fiber perforation.
The diameter of a field optical fiber perforation in the prior art is generally smaller, when a field optical fiber penetrates into the field optical fiber perforation through the tail part of an installation sleeve, the field optical fiber can enter the field optical fiber perforation with matching fluid, so that the penetrating end of the field optical fiber perforation is sealed by fluid, and the field optical fiber insertion core body is abutted with the prefabricated optical fiber insertion core body, so that air in the field optical fiber perforation is not easy to discharge, the resistance of penetrating the optical fiber is larger, the condition that the optical fiber is not smooth or even is not conducted is caused, and the qualification rate of products is influenced.
Disclosure of Invention
The invention aims to provide an L C optical fiber connector ferrule assembly, which aims to solve the technical problem that in the prior art, air in a field optical fiber through hole is not easy to exhaust due to the fact that a field optical fiber ferrule body is in butt joint with a prefabricated optical fiber ferrule body, and the fiber penetration resistance is large, and the L C optical fiber connector which aims to solve the technical problem that in the prior art, air in the field optical fiber through hole is not easy to exhaust due to the fact that the field optical fiber ferrule body is in butt joint with the prefabricated optical fiber ferrule body, and the fiber penetration resistance is large.
In order to achieve the purpose, the technical scheme of the ferrule assembly of the L C optical fiber connector is as follows:
l C optical fiber connector ferrule assembly, comprising:
the embedded optical fiber inserting core is internally provided with an embedded optical fiber through hole extending along the axial direction of the embedded optical fiber inserting core, and the embedded optical fiber through hole is used for the embedded optical fiber to penetrate;
the field optical fiber inserting core is jointed with the embedded optical fiber inserting core in an attaching way, the field optical fiber inserting core is provided with a field optical fiber perforation which extends along the axial direction of the field optical fiber inserting core, the field optical fiber perforation is used for penetrating a field optical fiber, and the field optical fiber perforation and the embedded optical fiber perforation are coaxially arranged;
the butt joint pipe is sleeved at the butt joint part of the field optical fiber ferrule and the embedded optical fiber ferrule;
an exhaust gap is arranged between the abutting surfaces of the embedded optical fiber ferrule and the field optical fiber ferrule;
an exhaust cavity is arranged between the butt joint part and the inner wall of the butt joint pipe, and/or an exhaust channel is arranged on the butt joint pipe, corresponds to the butt joint part and penetrates through the inner side and the outer side of the butt joint pipe;
the vent gap communicates the field fiber perforation with a vent lumen or vent channel.
The beneficial effects are that: the exhaust gap is arranged between the abutting surfaces of the embedded optical fiber inserting core and the field optical fiber inserting core, and in the process that the field optical fiber penetrates into the field optical fiber penetrating hole, air in the field optical fiber penetrating hole is exhausted to the exhaust cavity through the exhaust gap or is exhausted to the outer side of the abutting pipe through the exhaust gap, the exhaust cavity and the exhaust channel, so that the air resistance of the field optical fiber during penetrating is avoided, the field optical fiber can smoothly penetrate into the field optical fiber penetrating hole and is abutted with the embedded optical fiber in the embedded optical fiber penetrating hole, and the qualification rate of products is improved.
Furthermore, the butt joint surfaces of the embedded optical fiber core insert and/or the field optical fiber core insert are butt joint inclined surfaces so as to form the exhaust gap between the two butt joint surfaces.
The beneficial effects are that: the butt joint inclined plane is convenient to form, and effective exhaust of gas in the field optical fiber through hole can be guaranteed.
Furthermore, the included angle between the butt joint surface of the embedded optical fiber core insert and the butt joint surface in the field optical fiber core insert is 0.4-5 degrees.
The beneficial effects are that: the included angle can ensure that gas in the field optical fiber through hole can be effectively discharged under the condition of ensuring the butt joint stability of the pre-buried optical fiber inserting core and the field optical fiber inserting core.
Furthermore, the butt joint surface of the embedded optical fiber ferrule and/or the field optical fiber ferrule has a set roughness, the roughness enables a convex-concave structure to be formed on the butt joint surface, and the concave part of the convex-concave structure forms the exhaust gap.
The beneficial effects are that: the concave part of the concave-convex structure forms an exhaust gap to exhaust air in the field optical fiber through hole, and the convex part of the concave-convex structure is jointed with the corresponding jointing surface in a jointing way, so that the jointing stability of the embedded optical fiber inserting core and the field optical fiber inserting core is ensured.
Furthermore, the exhaust cavity is an annular cavity, and one side of the butt joint pipe is provided with an opening which forms the exhaust channel.
The beneficial effects are that: therefore, air exhausted from the exhaust gap is conveniently exhausted to the outside of the ferrule assembly through the annular cavity and the opening, and the smoothness of fiber penetration is further improved; and the butt joint pipe has certain holding power, and the butt joint precision of the on-site optical fiber inserting core and the pre-buried optical fiber inserting core is ensured.
In order to achieve the purpose, the technical scheme of the L C optical fiber connector is as follows:
the L C optical fiber connector comprises a shell and a ferrule assembly, wherein the ferrule assembly is arranged in the shell;
the ferrule assembly includes:
the embedded optical fiber inserting core is internally provided with an embedded optical fiber through hole extending along the axial direction of the embedded optical fiber inserting core, and the embedded optical fiber through hole is used for the embedded optical fiber to penetrate;
the field optical fiber inserting core is jointed with the embedded optical fiber inserting core in an attaching way, the field optical fiber inserting core is provided with a field optical fiber perforation which extends along the axial direction of the field optical fiber inserting core, the field optical fiber perforation is used for penetrating a field optical fiber, and the field optical fiber perforation and the embedded optical fiber perforation are coaxially arranged;
the butt joint pipe is sleeved at the butt joint part of the field optical fiber ferrule and the embedded optical fiber ferrule;
an exhaust gap is arranged between the abutting surfaces of the embedded optical fiber ferrule and the field optical fiber ferrule;
an exhaust cavity is arranged between the butt joint part and the inner wall of the butt joint pipe, and/or an exhaust channel is arranged on the butt joint pipe, corresponds to the butt joint part and penetrates through the inner side and the outer side of the butt joint pipe;
the vent gap communicates the field fiber perforation with a vent lumen or vent channel.
The beneficial effects are that: the exhaust gap is arranged between the abutting surfaces of the embedded optical fiber inserting core and the field optical fiber inserting core, and in the process that the field optical fiber penetrates into the field optical fiber penetrating hole, air in the field optical fiber penetrating hole is exhausted to the exhaust cavity through the exhaust gap or is exhausted to the outer side of the abutting pipe through the exhaust gap, the exhaust cavity and the exhaust channel, so that the air resistance of the field optical fiber during penetrating is avoided, the field optical fiber can smoothly penetrate into the field optical fiber penetrating hole and is abutted with the embedded optical fiber in the embedded optical fiber penetrating hole, and the qualification rate of products is improved.
Furthermore, the butt joint surfaces of the embedded optical fiber core insert and/or the field optical fiber core insert are butt joint inclined surfaces so as to form the exhaust gap between the two butt joint surfaces.
The beneficial effects are that: the butt joint inclined plane is convenient to form, and effective exhaust of gas in the field optical fiber through hole can be guaranteed.
Furthermore, the included angle between the butt joint surface of the embedded optical fiber core insert and the butt joint surface in the field optical fiber core insert is 0.4-5 degrees.
The beneficial effects are that: the included angle can ensure that gas in the field optical fiber through hole can be effectively discharged under the condition of ensuring the butt joint stability of the pre-buried optical fiber inserting core and the field optical fiber inserting core.
Furthermore, the butt joint surface of the embedded optical fiber ferrule and/or the field optical fiber ferrule has a set roughness, the roughness enables a convex-concave structure to be formed on the butt joint surface, and the concave part of the convex-concave structure forms the exhaust gap.
The beneficial effects are that: the concave part of the concave-convex structure forms an exhaust gap to exhaust air in the field optical fiber through hole, and the convex part of the concave-convex structure is jointed with the corresponding jointing surface in a jointing way, so that the jointing stability of the embedded optical fiber inserting core and the field optical fiber inserting core is ensured.
Furthermore, the exhaust cavity is an annular cavity, and one side of the butt joint pipe is provided with an opening which forms the exhaust channel.
The beneficial effects are that: therefore, air exhausted from the exhaust gap is conveniently exhausted to the outside of the ferrule assembly through the annular cavity and the opening, and the smoothness of fiber penetration is further improved; and the butt joint pipe has certain holding power, and the butt joint precision of the on-site optical fiber inserting core and the pre-buried optical fiber inserting core is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a ferrule assembly 1 of an L C optical fiber connector according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic structural view of the pre-embedded fiber ferrule and the pre-embedded ferrule housing of FIG. 1;
FIG. 4 is a schematic view of the butt-joint pipe of FIG. 1;
FIG. 5 is a schematic structural view of the field optical fiber ferrule and the mounting sleeve of FIG. 1;
in the figure: 1-pre-burying an optical fiber ferrule; 2-pre-embedding the ferrule shell; 3-butt joint pipe; 4-field optical fiber inserting core; 5, mounting a sleeve; 6-field optical fiber; 7-pre-burying the optical fiber; 8-butting inclined planes; 9-butt joint of straight surfaces; 10-opening; 11-exhaust gap; 12-a flaring structure; 13-annular cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the drawings and are only for convenience of description of the present invention, and do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
as shown in fig. 1, the ferrule assembly includes a pre-buried fiber ferrule 1 and a field fiber ferrule 4, the butt joint pipe 3 is sleeved outside the pre-buried fiber ferrule 1 and the field fiber ferrule 4, and the butt joint pipe 3 can prevent the field fiber ferrule 4 and the pre-buried fiber ferrule 1 from moving relatively in the radial direction of the butt joint pipe 3, so as to ensure the butt joint accuracy of the two.
In the embodiment, a pre-buried fiber perforation hole extending along the axial direction of the pre-buried fiber ferrule 1 is arranged in the pre-buried fiber ferrule 1 and is used for the pre-buried fiber 7 to penetrate; the field optical fiber inserting core 4 is jointed with the embedded optical fiber inserting core 1 in an attaching mode, the field optical fiber inserting core 1 is provided with a field optical fiber perforation extending along the axial direction of the field optical fiber inserting core, the field optical fiber perforation is used for penetrating the field optical fiber 6, and the field optical fiber perforation and the embedded optical fiber perforation are coaxially arranged so as to realize the butt joint of the field optical fiber 6 and the embedded optical fiber 7. Wherein, the butt joint end of the on-site optical fiber ferrule 4 and the pre-buried optical fiber ferrule 1 is provided with a chamfer structure, the chamfer structure and the butt joint pipe 3 enclose an annular cavity 13, and the annular cavity 13 forms an exhaust cavity.
In this embodiment, an exhaust gap is provided between the abutting surfaces of the pre-buried optical fiber ferrule 1 and the field optical fiber ferrule 4. Specifically, as shown in fig. 2, the abutting surface of the embedded optical fiber ferrule 1 is an abutting inclined surface 8, the abutting surface of the field optical fiber ferrule 4 is an abutting straight surface 9, after the embedded optical fiber ferrule 1 and the field optical fiber ferrule 4 are abutted, an exhaust gap 11 is formed between the abutting inclined surface 8 and the abutting straight surface 9, and the exhaust gap 11 is used for exhausting air in the field optical fiber through hole to the outside of the field optical fiber ferrule 4.
The included angle between the butt joint inclined plane 8 and the butt joint straight plane 9 is 0.4-5 degrees, and the included angle can ensure that gas in a field optical fiber perforation is effectively discharged under the condition that the butt joint stability of the embedded optical fiber inserting core 1 and the field optical fiber inserting core 4 is ensured. In other embodiments, the included angle between the abutting inclined surface and the abutting straight surface can be selected according to the requirement.
As shown in fig. 4, an opening 10 is provided at one side of the butt joint pipe 3, the opening 10 penetrates along the axial direction of the butt joint pipe 3, and the opening 10 forms an exhaust passage, so that air exhausted from the exhaust gap 22 is conveniently exhausted to the outside of the ferrule assembly, and the smoothness of fiber penetration is further improved; and the butt joint pipe 3 has certain holding power, and ensures the butt joint precision of the pre-buried optical fiber ferrule 1 and the field optical fiber ferrule 4.
As shown in fig. 1 and 3, a pre-embedded ferrule housing 2 is sleeved outside the pre-embedded fiber ferrule 1, the pre-embedded fiber ferrule 1 and the pre-embedded ferrule housing 2 are glued to realize fixation, and the pre-embedded ferrule housing 2 limits the axial position of the butt joint pipe 3 along the butt joint pipe 3.
As shown in fig. 1 and 5, one end of the field optical fiber ferrule 4 opposite to the pre-buried optical fiber ferrule 1 is connected with an installation sleeve 5, and the installation sleeve 5 is fixed on the field optical fiber ferrule 4 in an adhesive manner; the mounting sleeve 5 is provided with a mounting sleeve through hole extending along the axial direction, the mounting sleeve through hole is correspondingly communicated with the field optical fiber through hole, and one end of the mounting sleeve through hole, which is back to the field optical fiber through hole, is provided with a flaring structure 12 so as to guide the field optical fiber to penetrate.
During assembly, the embedded optical fiber ferrule 1 and the embedded ferrule shell 2 are firstly glued and fixed, then the embedded optical fiber 7 penetrates into an embedded optical fiber through hole of the embedded optical fiber ferrule 1, then the butt joint surface of the embedded optical fiber ferrule 1 is ground to be a butt joint inclined surface 8, and the parameters of the butt joint inclined surface 8 meet the end surface quality requirements of L C ferrules, the butt joint pipe 3 is sleeved on the embedded optical fiber ferrule 1 and is abutted against the embedded ferrule shell 2, the field optical fiber ferrule 4 is inserted into the butt joint pipe 3, the field optical fiber ferrule 4 is abutted and butted with the embedded optical fiber ferrule 1, at the moment, an exhaust gap 11 is formed between the field optical fiber ferrule 4 and the embedded optical fiber ferrule 1, the field optical fiber 6 penetrates through the flaring structure 12 and enters the field optical fiber through hole through the installation sleeve, in the process that the field optical fiber 6 penetrates into the field optical fiber through hole, air in the field optical fiber through hole is exhausted through the exhaust gap 11 and the opening 10, the air resistance of the field optical fiber 6 during fiber penetration is avoided, the field optical fiber 6 can smoothly penetrate into the field optical fiber through hole, and the embedded optical fiber 7 is butted with the.
the difference from the specific embodiment 1 is that in the embodiment 1, the abutting surface of the embedded optical fiber ferrule 1 is an abutting inclined surface 8, and the abutting surface of the field optical fiber ferrule 4 is an abutting straight surface 9, in this embodiment, the abutting surface of the embedded optical fiber ferrule is an abutting straight surface, and the abutting surface of the field optical fiber ferrule 4 is an abutting inclined surface. In other embodiments, the abutting surfaces of the embedded optical fiber ferrule and the field optical fiber ferrule are abutting inclined surfaces, and the two abutting inclined surfaces have different slopes or have the same slope and are in a V shape, so that an exhaust gap is formed between the two abutting inclined surfaces.
the difference from the specific embodiment 1 is that in the embodiment 1, an exhaust gap 11 is formed between the butting inclined surface 8 and the butting straight surface 9, in the embodiment, one of the two butting surfaces has a set roughness, the roughness value is Ra0.8-Ra6.3, the roughness enables a concave-convex structure to be formed on the butting surface, and the concave part of the concave-convex structure forms the exhaust gap for exhausting air in the field optical fiber through hole.
the difference from the specific embodiment 1 is that in the embodiment 1, an opening 10 is provided at one side of the butt joint pipe 3, and the opening 10 forms an exhaust passage, and in this embodiment, an exhaust hole is provided on the butt joint pipe, and the exhaust hole corresponds to a position where the embedded optical fiber ferrule and the field optical fiber ferrule are butted, and the exhaust hole forms the exhaust passage.
In other embodiments, no opening is provided on the butt joint pipe, at this time, an annular cavity is defined by the chamfer structures on the field optical fiber ferrule and the embedded optical fiber ferrule and the butt joint pipe, and gas in the field optical fiber through hole is discharged into the annular cavity through the exhaust gap, so as to reduce the resistance of the field optical fiber penetration.
the difference from the specific embodiment 1 is that, in embodiment 1, the butt ends of the field optical fiber ferrule 4 and the embedded optical fiber ferrule 1 are both provided with a chamfer structure, and the chamfer structure and the butt pipe 3 enclose an annular cavity 13.
the difference from the specific embodiment 1 is that in the embodiment 1, an exhaust gap 11 is formed between the abutting inclined surface 8 and the abutting straight surface 9, and in the embodiment, a cross groove is arranged on one abutting surface, and the cross groove forms the exhaust gap. In the embodiment, the butt joint surface is provided with a straight groove or a U-shaped groove, and after the field optical fiber ferrule is in butt joint with the embedded optical fiber ferrule, the straight groove or the U-shaped groove is communicated with the field optical fiber through hole to form an exhaust gap.
In a specific embodiment of the L C optical fiber connector of the present invention, the L C optical fiber connector in this embodiment includes a housing and a ferrule assembly disposed in the housing, and the ferrule assembly has the same structure as that described in any one of the specific embodiments 1 to 6 of the ferrule assembly of the L C optical fiber connector, and is not described herein again.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1, L C fiber optic connector ferrule assembly comprising:
the embedded optical fiber inserting core is internally provided with an embedded optical fiber through hole extending along the axial direction of the embedded optical fiber inserting core, and the embedded optical fiber through hole is used for the embedded optical fiber to penetrate;
the field optical fiber inserting core is jointed with the embedded optical fiber inserting core in an attaching way, the field optical fiber inserting core is provided with a field optical fiber perforation which extends along the axial direction of the field optical fiber inserting core, the field optical fiber perforation is used for penetrating a field optical fiber, and the field optical fiber perforation and the embedded optical fiber perforation are coaxially arranged;
the butt joint pipe is sleeved at the butt joint part of the field optical fiber ferrule and the embedded optical fiber ferrule;
the embedded optical fiber optical;
an exhaust cavity is arranged between the butt joint part and the inner wall of the butt joint pipe, and/or an exhaust channel is arranged on the butt joint pipe, corresponds to the butt joint part and penetrates through the inner side and the outer side of the butt joint pipe;
the vent gap communicates the field fiber perforation with a vent lumen or vent channel.
2. The L C fiber optic connector ferrule assembly of claim 1, wherein the mating surfaces of the pre-buried fiber ferrule and/or the field fiber ferrule are mating bevels to form the vent gap between the two mating surfaces.
3. The ferrule assembly of L C optical fiber connector according to claim 2, wherein the angle between the abutting surface of the pre-buried optical fiber ferrule and the abutting surface of the field optical fiber ferrule is 0.4 ° -5 °.
4. The L C fiber optic connector ferrule assembly of claim 1, wherein the mating surfaces of the pre-buried fiber ferrule and/or the field fiber ferrule have a roughness that is configured to form a relief structure on the mating surfaces, the relief structure having a recess that forms the vent gap.
5. The L C fiber optic connector ferrule assembly of any one of claims 1-4, wherein the vent cavity is an annular cavity and one side of the interface tube is provided with an opening that constitutes the vent passage.
The optical fiber connector of 6, L C includes casing and ferrule assembly, and the ferrule assembly sets up in the casing, the ferrule assembly includes:
the embedded optical fiber inserting core is internally provided with an embedded optical fiber through hole extending along the axial direction of the embedded optical fiber inserting core, and the embedded optical fiber through hole is used for the embedded optical fiber to penetrate;
the field optical fiber inserting core is jointed with the embedded optical fiber inserting core in an attaching way, the field optical fiber inserting core is provided with a field optical fiber perforation which extends along the axial direction of the field optical fiber inserting core, the field optical fiber perforation is used for penetrating a field optical fiber, and the field optical fiber perforation and the embedded optical fiber perforation are coaxially arranged;
the butt joint pipe is sleeved at the butt joint part of the field optical fiber ferrule and the embedded optical fiber ferrule;
the embedded optical fiber optical;
an exhaust cavity is arranged between the butt joint part and the inner wall of the butt joint pipe, and/or an exhaust channel is arranged on the butt joint pipe, corresponds to the butt joint part and penetrates through the inner side and the outer side of the butt joint pipe;
the vent gap communicates the field fiber perforation with a vent lumen or vent channel.
7. The L C fiber optic connector of claim 6, wherein the mating surfaces of the pre-buried fiber stub and/or the field fiber stub are mating bevels to form the vent gap between the two mating surfaces.
8. The L C fiber connector of claim 7, wherein an included angle between the abutting surface of the pre-buried fiber stub and the abutting surface in the field fiber stub is 0.4 ° -5 °.
9. The L C fiber optic connector of claim 6, wherein the mating surfaces of the pre-buried fiber stub and/or the field fiber stub have a roughness that is configured to form a relief structure on the mating surfaces, the relief structure having a recess that forms the vent gap.
10. The L C fiber optic connector of any one of claims 6-9, wherein the venting cavity is an annular cavity and one side of the mating tube is provided with an opening that forms the venting channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010327760.9A CN111399133A (en) | 2020-04-23 | 2020-04-23 | L C fiber connector and lock pin assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010327760.9A CN111399133A (en) | 2020-04-23 | 2020-04-23 | L C fiber connector and lock pin assembly thereof |
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|---|---|
| CN111399133A true CN111399133A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010327760.9A Pending CN111399133A (en) | 2020-04-23 | 2020-04-23 | L C fiber connector and lock pin assembly thereof |
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| CN101833141A (en) * | 2010-03-17 | 2010-09-15 | 无锡光太光通讯器件有限公司 | Ferrule device with exhausting slot |
| CN102830467A (en) * | 2012-09-13 | 2012-12-19 | 武汉光迅科技股份有限公司 | High return loss attenuation-adjustable connector |
| CN103135180A (en) * | 2013-03-27 | 2013-06-05 | 武汉光迅科技股份有限公司 | High return loss connector with adjustable light attenuation |
| CN110174731A (en) * | 2018-08-21 | 2019-08-27 | 中航光电科技股份有限公司 | A kind of field optical fibers connector |
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