CN112269227A - Optical fiber connector - Google Patents
Optical fiber connector Download PDFInfo
- Publication number
- CN112269227A CN112269227A CN202011136452.4A CN202011136452A CN112269227A CN 112269227 A CN112269227 A CN 112269227A CN 202011136452 A CN202011136452 A CN 202011136452A CN 112269227 A CN112269227 A CN 112269227A
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- Prior art keywords
- optical fiber
- clamping block
- optical cable
- shell
- groove
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 73
- 230000003287 optical effect Effects 0.000 claims abstract description 63
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—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
- G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to the technical field of optical fiber connection, and discloses an optical fiber connector which comprises a shell and an optical cable clamping block, wherein the tail end of the shell is provided with an accommodating cavity for accommodating the optical cable clamping block, and the accommodating cavity penetrates through one side of the shell to form an insertion hole for inserting the optical cable clamping block; the bottom of the accommodating cavity is provided with a clamping groove, and the optical cable clamping block is provided with a protrusion which is matched and clamped with the clamping groove; a guide groove is formed in the inner side wall of the accommodating cavity, the length direction of the guide groove is the same as the insertion direction of the optical cable clamping block in the accommodating cavity, and the optical cable clamping block is provided with a guide block which is matched with the guide groove for guiding; a moving gap is reserved between the guide block and the inner side wall of the guide groove in the width direction of the guide groove. According to the optical cable clamping block, the moving gap is reserved between the guide block and the inner side wall of the guide groove in the width direction of the guide groove, so that the phenomenon that the shell is deformed due to the fact that the optical cable clamping block protrudes and abuts against the bottom of the accommodating cavity when the accommodating cavity moves is avoided, and the phenomenon that the shell is fatigued due to deformation is avoided.
Description
Technical Field
The invention relates to the technical field of optical fiber connection, in particular to an optical fiber connector.
Background
The existing optical fiber connector mainly comprises a straight-through type and an embedded type, wherein the embedded type connector is that an optical fiber is embedded in an inner hole of a ceramic insert core body, one end of the embedded type connector penetrates through the ceramic insert core body and forms an end head butted with a normal connector after grinding and polishing, and the other end of the embedded type connector is exposed for a certain length and is used for connecting an external optical fiber.
Most tails of the existing embedded optical fiber connectors adopt an optical cable fixing piece and a tail sleeve to fix an externally-inserted optical fiber, for example, an ultra-short flip-type optical fiber quick connector disclosed by the Chinese patent publication No. CN202886651U, an optical fiber connector and an optical fiber connector assembly disclosed by the Chinese patent publication No. CN105511024A, an optical fiber connector tail sleeve fixing tool disclosed by the Chinese patent publication No. CN210323471U and the like, but the optical fiber is easy to move when the optical cable fixing piece is sleeved in after the optical fiber is penetrated by the structure, and the phenomenon of interference or deficiency of the externally-inserted optical fiber in the optical fiber connector is easily caused, so that the externally-inserted optical fiber and the embedded optical fiber in an inner hole of a ceramic insertion core body cannot be accurately butted.
In order to solve the above problem, patent publication No. CN211086689U discloses an optical fiber connection structure, which includes a connector housing and an optical cable clamping block, wherein the connector housing is provided with a containing cavity for containing the optical cable clamping block, the optical cable clamping block is provided with a guide arm extending along the axial direction of the optical cable clamping block, and the inner side wall of the containing cavity is provided with a guide groove for guiding the optical cable clamping block to move directionally in cooperation with the guide arm. The optical cable clamping block can be prevented from moving along the guide groove through directional movement of the optical cable clamping block and can be firmly fixed.
However, in the process of the optical cable clamping block moving along the guide groove in a directional manner, the clamping point of the optical cable clamping block abuts against the inner side wall of the accommodating cavity and causes the external connector shell to deform, and the optical cable clamping block moves along the guide groove for multiple times to cause the external connector shell to generate permanent deformation due to fatigue, so that the assembly stability of the optical fiber connector is reduced.
Disclosure of Invention
The invention aims to provide an optical fiber connector which can improve the assembly stability of an optical cable clamping block and avoid fatigue of a shell due to deformation.
In order to achieve the purpose, the invention provides an optical fiber connector, which comprises a shell and an optical cable clamping block, wherein the tail end of the shell is provided with an accommodating cavity for accommodating the optical cable clamping block, the accommodating cavity penetrates through one side of the shell to form an insertion hole for inserting the optical cable clamping block, the bottom of the accommodating cavity is provided with a clamping groove, and the optical cable clamping block is provided with a protrusion matched and clamped with the clamping groove; a guide groove is formed in the inner side wall of the accommodating cavity, the length direction of the guide groove is the same as the insertion direction of the optical cable clamping block in the accommodating cavity, and the optical cable clamping block is provided with a guide block which is matched with the guide groove for guiding; and a moving gap is reserved between the guide block and the inner side wall of the guide groove in the width direction of the guide groove.
Further, the quantity of guide way is two, two the guide way sets up respectively on the relative inside wall of holding the chamber.
Further, the optical cable clamping block comprises a body and a cover body;
the upper surface of the body is provided with a cable passing groove which penetrates through two sides of the body and is used for an optical cable to pass through, and the cover body is used for shielding an opening of the cable passing groove;
the protrusion is arranged on the lower surface of the body, and the guide block is arranged on the outer side wall of the body.
Further, the tail sleeve is rotatably arranged at the tail end of the shell;
the outer side wall of the tail end of the shell is provided with a clamping block with an inclined part, and the tail sleeve is provided with a linear groove matched and clamped with the clamping block.
Furthermore, the optical fiber connector also comprises a ferrule assembly for the pre-buried optical fiber to pass through;
the shell is provided with an inner cavity for accommodating the ferrule assembly, and the inner cavity is communicated with the accommodating cavity through an optical fiber channel.
Furthermore, deep blind grooves arranged along the length direction of the optical fiber channel are respectively arranged on two sides of the optical fiber channel, which are positioned on the shell.
Furthermore, a first window for inserting the ferrule assembly into the inner cavity is formed in the side surface of the shell.
Furthermore, the ferrule assembly comprises a core body, a base body, a pressure plate and a lock catch;
the core body is provided with a through hole penetrating through two ends of the core body, the first end of the core body is a plug end, and the outer side wall of the second end of the core body is provided with a groove part communicated with the through hole;
the seat body is provided with a through hole penetrating through two ends of the seat body, the seat body is sleeved on the outer side wall of the second end of the core body, the end surface of the second end of the core body is positioned in the seat body, the outer side wall of the seat body is provided with a second window communicated with the through hole, and the second window corresponds to the groove part; a spring is sleeved at one end of the seat body far away from the inserting end;
the pressing plate is covered on the second window; the lock catch is sleeved on the outer side wall of the seat body and the pressing plate.
Further, a fastener is also included;
the fastener comprises a cover plate and a cantilever clamping hook arranged on the lower surface of the cover plate;
the cover plate is covered on a partial area of the first window; the shell is provided with a clamping hole matched and clamped with the cantilever clamping hook.
Further, the fastener still includes the lug that sets up in the apron lower surface and be used for butt to the pedestal.
Compared with the prior art, the optical fiber connector provided by the embodiment of the invention has the beneficial effects that:
in the process that the optical cable clamping block is inserted into the accommodating cavity, the guide block moves along the length direction of the guide groove, so that the stability and the accuracy of installation of the optical cable clamping block on the shell are improved. Meanwhile, a moving gap is reserved between the guide block and the inner side wall of the guide groove in the width direction of the guide groove, the phenomenon that the shell is deformed due to the fact that the optical cable clamping block protrudes to abut against the bottom of the accommodating cavity when the accommodating cavity moves is avoided, and the phenomenon that the shell is fatigued due to deformation is avoided, so that the service life of the shell is prolonged. The user can recycle the shell and the optical cable clamping block, and the use cost can be effectively saved.
Drawings
FIG. 1 is a disassembled schematic view of the fiber optic connector of the present invention;
FIG. 2 is a schematic view of the cable clamp block of the present invention with the clearance gap above during installation in the cavity;
FIG. 3 is a schematic view of the cable clamp block of the present invention with the movement gap below when the cavity is installed;
FIG. 4 is a front view of the fiber optic connector of the present invention;
FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;
FIG. 6 is a schematic structural view of the housing, ferrule assembly and fastener of the present invention;
FIG. 7 is a schematic view of the insertion of the cable clamp block of the present invention into a receiving cavity (lacking a boot);
FIG. 8 is a schematic view of the housing of the present invention from an angle;
FIG. 9 is a schematic view of the housing of the present invention viewed from another angle;
FIG. 10 is a schematic view of a closed configuration of a cable clamp block of the present invention;
FIG. 11 is a schematic view of the cable clamp of the present invention shown from an angle after deployment;
FIG. 12 is a schematic view of a cable clamp of the present invention shown from another angle after deployment;
FIG. 13 is a schematic structural view of a boot of the present invention;
figure 14 is a disassembled schematic view of the ferrule assembly of the present invention;
FIG. 15 is a schematic structural view of a fastener of the present invention;
FIG. 16 is a schematic structural view of the front cover of the present invention;
in the figure, 1-shell, 11-containing cavity, 111-clamping groove, 112-guide groove, 112 a-moving gap, 112 b-inner side wall of guide groove, 113-inserting hole, 114-inner side wall of containing cavity, 12-hinge column, 13-clamping block, 131-inclined part, 14-inner cavity, 141-first window, 15-optical fiber channel, 16-deep blind groove, 17-clamping hole and 18-abdicating groove;
2-optical cable clamping block, 21-body, 211-projection, 212-guide block, 213-cable-passing groove and 22-cover body;
3-tail sleeve, 31-hinge hole, 32-linear groove;
4-ferrule assembly, 41-core body, 411-through hole, 412-groove part, 42-seat body, 421-through hole, 422-second window, 43-pressing plate, 44-lock catch and 45-spring;
5-fastener, 51-cover plate, 52-cantilever hook and 53-lug;
6-front cover, 61-slotted hole;
10-external optical cable.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-16, which is a fiber optic connector according to a preferred embodiment of the present invention. Specifically, the optical fiber connector of the present invention includes a housing 1 and an optical cable clamping block 2, wherein the tail end of the housing 1 is provided with an accommodating cavity 11 for accommodating the optical cable clamping block 2, and the accommodating cavity 11 penetrates one side of the housing 1 to form an insertion port 113 for inserting the optical cable clamping block 2; the bottom of the accommodating cavity 11 is provided with a clamping groove 111, and the optical cable clamping block 2 is provided with a protrusion 211 matched and clamped with the clamping groove 111; a guide groove 112 is formed in the inner side wall 114 of the accommodating cavity, the length direction of the guide groove 112 is the same as the insertion direction of the optical cable clamping block 2 in the accommodating cavity 11, and the optical cable clamping block 2 is provided with a guide block 212 which is matched with the guide groove 112 for guiding; the guide block 212 has a movement gap 112a reserved between it and the inner side wall 112b of the guide groove 112 in the width direction of the guide groove.
Based on the above structure, in the process of inserting the optical cable clamping block 2 into the accommodating cavity 11, the guide block 212 moves along the length direction of the guide groove 112, so that the stability and accuracy of the installation of the optical cable clamping block 2 on the housing 1 are improved. Meanwhile, a moving gap 112a is reserved between the guide block 212 and the inner side wall 112b of the guide groove in the width direction of the guide groove 112, so that the phenomenon that the shell 1 is deformed due to the fact that the protrusion 211 abuts against the bottom of the accommodating cavity 11 when the optical cable clamping block 2 moves in the accommodating cavity 11 is avoided, the phenomenon that the shell 1 is fatigued due to deformation is avoided, and the service life of the shell 1 is prolonged.
Referring to fig. 10-12, cable clamp block 2 includes a body 21 and a cover 22. The upper surface of the main body 21 is provided with a cable passing groove 213 for passing the optical cable therethrough, and the cover 22 is used for shielding the opening of the cable passing groove 213. The cover 22 and the body 21 may be connected integrally or in a split manner, for example, the cover 22 is rotatably disposed on the body 21 by using a hinge structure such as a pin, and the cover 22 rotates relative to the body 21 to shield or open the opening of the cable passing groove 213 by the cover 22; in another example, the cover 22 is connected to the body 21 through a clamping structure or a mortise and tenon structure, so the connection relationship between the cover 22 and the body 21 is not limited in the present invention.
The protrusion 211 is provided on the lower surface of the body 21, and the guide block 212 is provided on the outer sidewall of the body 21. The body 21, the protrusion 211 and the guide block 212 are preferably of an injection molded integral construction. The number of the protrusions 211 corresponds to the number of the slots 111 one by one, and the number of the protrusions 211 can be two; the number of the guide blocks 212 corresponds to the number of the guide grooves 112 one by one, the number of the guide blocks 212 may be two, and the two guide blocks 212 are respectively disposed at both sides of the body 21.
Referring to fig. 1, the optical fiber connector of the present invention further includes a ferrule assembly 4, a fastener 5, a tail sleeve 3, and a front sleeve 6 according to the general structure of the pre-buried type optical fiber connector.
Referring to fig. 6-9, the housing 1 of the present invention is provided with two guide grooves 112 on the opposite inner side walls 114 of the accommodating cavity, the two guide grooves 112 are optionally arranged at the same horizontal height, and correspondingly, two guide blocks 212 are respectively arranged on the opposite side walls of the cable clamping block 2, and the two guide blocks 212 respectively move along the length direction of the two guide grooves 112 in an oriented manner, which effectively improves the stability of the installation of the cable clamping block 2 on the housing 1.
The housing 1 is opened with an inner cavity 14 for accommodating the ferrule assembly 4, and the inner cavity 14 is communicated with the accommodating cavity 11 through an optical fiber channel 15. The optical fiber of the external optical cable is connected with the pre-buried optical fiber of the ferrule assembly 4 arranged in the inner cavity 14 through the optical fiber channel 15, and the cross section area of the optical fiber channel 15 is smaller than that of the inner cavity 14 and the accommodating cavity 11 because the cross section area of the optical fiber is smaller. In order to improve the processing stability of the housing 1, deep blind grooves 16 arranged along the length direction of the optical fiber channel 15 are respectively arranged on two sides of the housing 1, which are located on the optical fiber channel 15, the thickness difference between two sides of the housing 1, which are located on the optical fiber channel 15, and two sides of the housing 1, which are located on the inner cavity 14 and the accommodating cavity 11, is reduced through the deep blind grooves 16, and the quality problems that the housing 1 is deformed due to the large thickness difference in the injection molding process are avoided.
In order to facilitate the assembly of the ferrule assembly 4 in the internal cavity 14, a first window 141 for inserting the ferrule assembly 4 into the internal cavity 14 is opened on a side surface of the housing 1. The first window 141 communicates with said inner chamber 14. Optionally, according to the structure and size design of the ferrule assembly 4, the inner cavity 14 is designed to have a small cross-sectional area at two ends and a large middle to improve the assembling relationship of the ferrule assembly 4 in the housing 1, so that the structure of the first window 141 corresponds to the structure of the inner cavity 14.
Further, referring to fig. 1, 6, 14, the ferrule assembly 4 includes a core 41, a seat 42, a pressure plate 43, and a latch 44. The core 41 may be made of ceramic, the core 41 has a through hole 411 penetrating through two ends thereof, the first end of the core 41 is a plug end, and a groove portion 412 communicating with the through hole 411 is disposed on an outer side wall of the second end of the core 41. A pre-buried optical fiber is disposed in the through hole 411, one end of the pre-buried optical fiber is exposed outside the insertion end for being in butt joint with a normal connector, and the other end of the pre-buried optical fiber is disposed in the groove portion 412. The base body 42 has through holes 421 penetrating through both ends thereof, the base body 42 is sleeved on the outer side wall of the second end of the core body 41, the second end surface of the core body 41 is located in the base body 42, a second window 422 communicated with the through holes 421 is arranged on the outer side wall of the base body 42, the second window 422 corresponds to the groove portion 412, when the optical fiber connector is installed, the optical fiber of the external optical cable enters the ferrule assembly 4 through the optical fiber channel 15, and is in butt joint with the embedded optical fiber in the groove portion 412.
The spring 45 is sleeved at one end, far away from the plugging end, of the base body 42, when the core body 41 and the base body 42 are assembled in the inner cavity 14, one end of the spring 45 abuts against the outer wall of the base body 42, the other end of the spring 45 abuts against the side wall of the inner cavity 14, the spring 45 is in a pressing state, the ferrule assembly 4 is fixed in the inner cavity 14 by utilizing the pretightening force of the spring 45, the optical fiber connector is prevented from vibrating in the using process to cause the displacement of the core body 41 and the base body 42 in the inner cavity 14, and therefore the optical fiber connection stability of the embedded optical fiber and the external optical fiber. Further, the end of body 42 with spring 45 is disposed in the end of cavity 14 that connects to fiber channel 15.
The pressing plate 43 covers the second window 422 to lock the joint between the embedded optical fiber and the external optical fiber. The latch 44 is sleeved on the outer side wall of the seat body 42 and the pressing plate 43, and the butt joint point is locked or unlocked (forward-push locking and backward-push unlocking) by pushing the latch 33.
Referring to fig. 5 and 15, the fastening member 5 includes a cover plate 51, and the cover plate 51 can be covered on a partial region of the first window 141, wherein the cover plate 51 is covered on a region of the first window 141 above the spring 45 (i.e., the first window 141 is located on a corresponding region of the rear portion of the housing body 42), so as to prevent the accidental release of the pre-tightening force of the spring 45 from causing the ferrule assembly 4 to be pulled out of the internal cavity 14. The lower surface of the cover plate 51 is provided with a cantilever hook 52, and the cantilever hook 52 is in a J-shaped structure. The number of the cantilever hooks 52 can be two, and the two cantilever hooks 52 are oppositely spaced and oppositely arranged. The shell 1 is provided with clamping holes 17 matched and clamped with the cantilever clamping hooks 52, and the number of the clamping holes 17 corresponds to the number of the cantilever clamping hooks 52 one by one. Referring to fig. 4, two cantilever hooks 52 are respectively inserted into the two locking holes 17, and the cantilever hooks 52 are pressed against the bottom of the housing 1 to fix the cover plate 51 on the housing 1. The lower surface of the cover plate 51 is provided with a projection 53, and when the cover plate 51 is disposed on the housing 1, the projection 53 abuts against the seat body 42 to effectively and securely fix the ferrule assembly 4 in the internal cavity 14. Preferably, the cover plate 51, the cantilever hooks 52 and the protrusions 53 are integrally formed members.
Referring to fig. 1, 8 and 13, a tail sleeve 3 is rotatably arranged at the tail end of the shell 1. Specifically, the casing 1 is provided with a hinge post 12, and the tail sleeve 3 is provided with a hinge hole 31 sleeved on the hinge post 12 to realize the hinge connection between the tail sleeve 3 and the casing 1. The outer side wall of the tail end of the shell 1 is provided with two fixture blocks 13 with the inclined portion 131, the number of the fixture blocks 13 can be selected to be two, and the two fixture blocks 13 are respectively arranged on the two outer side walls of the tail end of the shell 1. The housing 1 is provided with a yielding groove 18 below the fixture block 13, and the yielding groove 18 enables a certain gap to be formed between the inner side wall of the tail sleeve 3 and the outer side wall of the housing 1, so that tools such as blades can extend into the gap. The tail sleeve 3 is provided with a linear groove 32 which is matched and clamped with the clamping block 13, when the optical cable clamping block 2 is assembled in the accommodating cavity 11, the tail sleeve 3 rotates around the shell 1 and is fixed with the clamping block 13 in a clamping mode through the linear groove 32, the tail sleeve 3 is utilized to shield the optical fiber channel 15 and an opening of the accommodating cavity 11, and the external optical cable is protected and prevented from dust. When the tail sleeve 3 and the shell 1 need to be disassembled, tools such as a blade are inserted into the abdicating groove 18 from the bottom of the shell 1, the blade abuts against the inner side wall of the tail sleeve 3 to enable the tail sleeve 3 to deform and stretch, and at the moment, the fixture block 13 is separated from the linear groove 32, so that the tail sleeve 3 and the shell 1 can be disassembled.
Referring to fig. 1, the front cover 6 is used to cover the front end of the housing 1, and is used to connect with other normal connectors, and also has a protective and dustproof function for the plug assembly 4. The connection between the front sleeve 6 and the housing 1 is a general structure of a conventional embedded optical fiber connector, and a detailed structure of the front sleeve 6 is omitted. Preferably, referring to fig. 16, the upper surface of the front cover 6 is provided with a slot 61, so that a push clamp and the like extend from the slot 61 and are clamped with the latch 44, and the latch 44 is moved by pushing the push clamp to move back and forth, thereby realizing the locking or unlocking function.
The assembly process of the optical fiber connector comprises the following steps: firstly, the assembled ferrule assembly 4 is installed in the inner cavity 14 of the shell 1; then the fastener 5 is clamped on the shell 1 through the cantilever clamping hook 52, the convex block 53 is abutted against the ferrule assembly 4, the ferrule assembly 4 is prevented from being separated, and the front sleeve 6 is sleeved at the front end of the shell 1; then, an external optical cable passes through the cable penetrating groove 213 of the optical cable clamping block 2 and the optical cable clamping block 2 is assembled in the accommodating cavity 11 of the housing 1, in the process that the optical cable clamping block 2 moves directionally along the accommodating cavity 11, the moving gap 112a between the guide block 212 and the guide groove 112 is located on the lower side of the guide groove 112, so that the protrusion 211 is separated from the bottom of the accommodating cavity 11, the deformation of the housing 1 caused by the protrusion 211 abutting against the housing 1 is avoided, when the protrusion 211 moves to the position of the card slot 111, the guide block 212 moves downwards along the width direction of the guide groove 112, so that the protrusion 211 is clamped in the card slot 111, and at the moment, the moving gap 112a between the guide block 212 and the guide groove 112 is located on the upper side of the guide groove 112; part of optical fibers of the external optical cable pass through the optical fiber channel 15 after being stripped and extend into the base body 42 to be butted with the embedded optical fibers; and finally, the tail sleeve 3 rotates around the shell 1, so that the linear groove 32 of the tail sleeve 3 is clamped on the clamping block 13 of the shell 1, and the external optical cable and the ferrule assembly 4 are protected and dustproof respectively.
To sum up, the embodiment of the present invention provides an optical fiber connector, wherein during the process of inserting the cable clamping block 2 into the accommodating cavity 11, the guide block 212 moves along the length direction of the guide groove 112, so as to improve the stability and accuracy of installing the cable clamping block 2 on the housing 1. Meanwhile, a moving gap 112a is reserved between the guide block 212 and the inner side wall 112b of the guide groove in the width direction of the guide groove 112, so that the phenomenon that the shell 1 is deformed due to the fact that the protrusion 211 abuts against the bottom of the accommodating cavity 11 when the optical cable clamping block 2 moves in the accommodating cavity 11 is avoided, the phenomenon that the shell 1 is fatigued due to deformation is avoided, and the service life of the shell 1 is prolonged. The user can recycle the shell 1 and the optical cable clamping block 2, and the use cost can be effectively saved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An optical fiber connector comprises a shell and an optical cable clamping block, wherein the tail end of the shell is provided with an accommodating cavity for accommodating the optical cable clamping block, the accommodating cavity penetrates through one side of the shell to form an insertion opening for inserting the optical cable clamping block, and the optical fiber connector is characterized in that,
the bottom of the accommodating cavity is provided with a clamping groove, and the optical cable clamping block is provided with a protrusion which is matched and clamped with the clamping groove; a guide groove is formed in the inner side wall of the accommodating cavity, the length direction of the guide groove is the same as the insertion direction of the optical cable clamping block in the accommodating cavity, and the optical cable clamping block is provided with a guide block which is matched with the guide groove for guiding; and a moving gap is reserved between the guide block and the inner side wall of the guide groove in the width direction of the guide groove.
2. The optical fiber connector according to claim 1, wherein the number of said guide grooves is two, and two of said guide grooves are respectively provided on opposite inner side walls of said receiving chamber.
3. The fiber optic connector of claim 1, wherein the cable clamp block includes a body and a cover;
the upper surface of the body is provided with a cable passing groove which penetrates through two sides of the body and is used for an optical cable to pass through, and the cover body is used for shielding an opening of the cable passing groove;
the protrusion is arranged on the lower surface of the body, and the guide block is arranged on the outer side wall of the body.
4. The fiber optic connector of any of claims 1-3, further including a boot rotatably disposed at the rear end of the housing;
the outer side wall of the tail end of the shell is provided with a clamping block with an inclined part, and the tail sleeve is provided with a linear groove matched and clamped with the clamping block.
5. The optical fiber connector according to any one of claims 1 to 3, further comprising a ferrule assembly for passing the embedded optical fiber therethrough;
the shell is provided with an inner cavity for accommodating the ferrule assembly, and the inner cavity is communicated with the accommodating cavity through an optical fiber channel.
6. The optical fiber connector according to claim 5, wherein the housing is provided with deep blind grooves along the length of the optical fiber passage at both sides of the optical fiber passage.
7. The fiber optic connector of claim 5, wherein a side of the housing defines a first window for insertion of the ferrule assembly into the internal cavity.
8. The fiber optic connector of claim 5, wherein the ferrule assembly includes a core, a seat, a pressure plate, and a latch;
the core body is provided with a through hole penetrating through two ends of the core body, the first end of the core body is a plug end, and the outer side wall of the second end of the core body is provided with a groove part communicated with the through hole;
the seat body is provided with a through hole penetrating through two ends of the seat body, the seat body is sleeved on the outer side wall of the second end of the core body, the end surface of the second end of the core body is positioned in the seat body, the outer side wall of the seat body is provided with a second window communicated with the through hole, and the second window corresponds to the groove part; a spring is sleeved at one end of the seat body far away from the inserting end;
the pressing plate is covered on the second window; the lock catch is sleeved on the outer side wall of the seat body and the pressing plate.
9. The fiber optic connector of claim 7, further comprising a fastener;
the fastener comprises a cover plate and a cantilever clamping hook arranged on the lower surface of the cover plate;
the cover plate is covered on a partial area of the first window; the shell is provided with a clamping hole matched and clamped with the cantilever clamping hook.
10. The fiber optic connector of claim 9, wherein the fastener further includes a projection disposed on a lower surface of the cover plate for abutting to the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011136452.4A CN112269227A (en) | 2020-10-21 | 2020-10-21 | Optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011136452.4A CN112269227A (en) | 2020-10-21 | 2020-10-21 | Optical fiber connector |
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| Publication Number | Publication Date |
|---|---|
| CN112269227A true CN112269227A (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011136452.4A Pending CN112269227A (en) | 2020-10-21 | 2020-10-21 | Optical fiber connector |
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| Country | Link |
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| CN (1) | CN112269227A (en) |
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| CN114114557A (en) * | 2021-12-03 | 2022-03-01 | 杭州润州光电技术有限公司 | Quick jumper connector and optical fiber jumper |
| CN116125602A (en) * | 2022-12-27 | 2023-05-16 | 镭神技术（深圳）有限公司 | Optical fiber connector and optical signal transmission device |
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