CN110244410B - Optical fiber connector - Google Patents

Optical fiber connector Download PDF

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Publication number
CN110244410B
CN110244410B CN201910503738.2A CN201910503738A CN110244410B CN 110244410 B CN110244410 B CN 110244410B CN 201910503738 A CN201910503738 A CN 201910503738A CN 110244410 B CN110244410 B CN 110244410B
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CN
China
Prior art keywords
assembly
tail
head end
ferrule
inner frame
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Application number
CN201910503738.2A
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Chinese (zh)
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CN110244410A (en
Inventor
钟志云
顾振国
弗兰克.凯斯克
华曦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix Contact Asia Pacific Nanjing Co Ltd
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact Asia Pacific Nanjing Co Ltd
Phoenix Contact GmbH and Co KG
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Application filed by Phoenix Contact Asia Pacific Nanjing Co Ltd, Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact Asia Pacific Nanjing Co Ltd
Priority to CN201910503738.2A priority Critical patent/CN110244410B/en
Publication of CN110244410A publication Critical patent/CN110244410A/en
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Publication of CN110244410B publication Critical patent/CN110244410B/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/40Mechanical coupling means having fibre bundle mating means
    • G02B6/403Mechanical coupling means having fibre bundle mating means of the ferrule type, connecting a pair of ferrules

Abstract

The invention discloses an optical fiber connector, which comprises a plug, a socket and an extension line, wherein the plug comprises a first optical cable, a first net tail, a first compression ring, a first back shell, a first ferrule assembly, an open tube fixer, an open tube, a first inner frame sleeve and a first shell assembly, the socket comprises a third optical cable, a tail sleeve, a third crimping ring, a fixing nut, a rubber sleeve, a third rear shell, a third ferrule assembly, a third inner frame sleeve and a third shell assembly, the extension line socket comprises a second optical cable, a second net tail, a second compression ring, a second rear shell, a second ferrule assembly, a second inner frame sleeve and a second outer shell assembly, the plug is connected with the socket, when the length needs to be increased, the connection is realized through the extension line, the optical fiber connector is reasonable in structural design, the number of parts is relatively small, the connection reliability is high, the sealing performance is good, and the anti-pulling capacity of the connector is good.

Description

Optical fiber connector
Technical Field
The invention belongs to the technical field of optical fiber communication, and particularly relates to an optical fiber connector.
Background
The optical fiber connector is a device for detachable connection between optical fibers, and precisely butt-joints two end faces of the optical fibers so as to maximally couple light energy output by a transmitting optical fiber into a receiving optical fiber and minimize the influence on a system caused by the optical fiber connector intervening in an optical link, which is a basic requirement of the optical fiber connector. To some extent, fiber optic connectors affect the reliability and performance of optical transmission systems.
The existing outdoor high-protection-level optical fiber connector usually adopts a double-channel or multi-channel design, the double channel usually adopts a 2PCS (personal communications systems) conventional LC (liquid Crystal) indoor connector, and a waterproof protection head is additionally arranged to complete a waterproof design; there are generally two solutions for multiple channels, one is a MPO connector + bulkhead, and the other is an MPO bulkhead + bulkhead solution.
In addition, the existing 4-core high-protection-level optical fiber connector has a small distance (2.5mm) between the ferrules, and a common optical fiber end face cleaning tool interferes with the ferrules due to the fact that the plug is too large (the minimum allowable distance of the cleaning tool which is mainstream at present is 2.7mm), so that the optical fiber end faces cannot be cleaned.
Disclosure of Invention
Aiming at the problems, the invention provides the optical fiber connector which is reasonable in structure, high in connection reliability and convenient to clean.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an optical fiber connector comprises a plug and a socket, wherein the plug comprises a first optical cable, a first net tail, a first compression ring, a first rear shell, a first ferrule assembly, an open tube fixer, an open tube, a first inner frame sleeve and a first shell assembly, the head end of the first net tail is fixedly connected with the tail end of the first shell assembly, the tail end of the first compression ring extends into the head end of the first net tail, the head end of the first compression ring extends into the first shell assembly, the first compression ring is fixedly connected with the first shell assembly, the first rear shell, the first ferrule assembly, the open tube fixer and the open tube are sequentially arranged in the first inner frame sleeve, the first inner frame sleeve is arranged in the first shell assembly, the tail end of the first rear shell is in butt joint with the head end of the first compression ring, the tail end of the first ferrule assembly is in butt joint with the head end of the first rear shell, the head end of the first ferrule assembly penetrates through the open pipe fixer to be in butt joint with the open pipe, and the optical cable extends into the tail end of the first net tail and is in butt joint with the first ferrule assembly;
the socket comprises a third optical cable, a tail sleeve, a third compression ring, a fixing nut, a rubber sleeve, a third rear shell, a third ferrule assembly, a third inner frame sleeve and a third shell assembly, wherein the third inner frame sleeve is arranged in the tail end of the third shell assembly, a key groove is formed in the tail end of the third shell assembly, a bulge matched with the key groove is formed in the top of the third inner frame sleeve, the head end of the third ferrule assembly extends into the tail end of the third inner frame sleeve, the tail end of the third ferrule assembly extends into the head end of the third rear shell, the head end of the third rear shell is in butt joint with the tail end of the third inner frame sleeve, the rubber sleeve is arranged in the tail end of the third shell assembly and outside the third inner frame sleeve, the fixing nut is fixedly connected with the internal thread at the tail end of the third shell assembly through external threads, the head end of the third compression ring is in butt joint with the tail end of the third rear shell, and the tail sleeve is coated outside the third compression ring, and the third optical cable penetrates through the tail sleeve and the third compression joint ring, extends into the tail end of the third rear shell and is in butt joint with the third ferrule assembly.
Further, the optical fiber connector further comprises an extension line, the extension line comprises an extension line plug and an extension line socket, the extension line socket comprises a second optical cable, a second net tail, a second compression ring, a second back shell, a second ferrule assembly, a second inner frame sleeve and a second outer shell assembly, the head end of the second net tail is fixedly connected with the tail end of the second outer shell assembly, the tail end of the second compression ring extends into the head end of the second net tail, the head end of the second compression ring extends into the second outer shell assembly, the second back shell and the second ferrule assembly are arranged in the second inner frame sleeve, the second inner frame sleeve is arranged in the second outer shell assembly, the tail end of the second ferrule assembly is in butt joint with the head end of the second back shell, the head end of the second back shell is in butt joint with the tail end of the second inner frame sleeve, and the head end of the second compression ring is in butt joint with the tail end of the second inner frame sleeve, the second optical cable extends into the tail end of the second net tail and is in butt joint with the second inserting core assembly, and the extension line plug structure is consistent with the plug structure of the optical fiber connector.
Furthermore, the first ferrule assembly, the second ferrule assembly and the third ferrule assembly are all ceramic or metal ferrule assemblies, and the open pipe is a ceramic or metal open pipe.
Further, the first ferrule assembly, the second ferrule assembly and the third ferrule assembly are 2-core or 4-core ferrule assemblies, and the open pipe is a 2-core or 4-core open pipe.
Furthermore, each ferrule of the first ferrule assembly, the second ferrule assembly and the third ferrule assembly is sleeved with a spring.
Further, the spacing between the ferrules of the first, second and third ferrule assemblies is at least 2.7 mm.
Further, the head end of the first net tail is provided with an external thread, the tail end of the first shell component is provided with a matched internal thread, the head end of the second net tail is provided with an external thread, and the tail end of the second shell component is provided with a matched internal thread.
Further, the head end of the first shell component is provided with internal threads, the head ends of the second shell component and the third shell component are provided with matched external threads, and the thread types are metric threads, T-shaped threads or 3-head threads.
Further, a first sealing ring is arranged outside the head end of the first net tail, a second sealing ring is arranged outside the head end of the second net tail, and a fourth sealing ring is arranged outside the tail end of the third shell component.
Further, the plug still include with first shell subassembly head end can be dismantled the first dustproof cap of connection, the extension line socket still include with second shell subassembly head end can be dismantled the dustproof cap of second of connection, it is sealed through the third sealing washer between second shell subassembly and the dustproof cap of second, the socket still include with third shell subassembly head end can be dismantled the third dustproof cap of connection, it is sealed through the fifth sealing washer between third shell subassembly and the third dustproof cap.
Compared with the prior art, the invention has the remarkable advantages that:
(1) the optical fiber connector is reasonable in structural design, relatively few in part number, high in connection reliability and good in sealing performance, adopts a mode of coupling the mature ceramic ferrule and the ceramic sleeve in the part, and is higher in reliability, longer in service life and lower in cost compared with a plastic ferrule;
(2) the invention reasonably designs and optimizes the distance between the plug cores, and can clean the end face of the optical fiber by using a conventional cleaner, meanwhile, the invention can adopt products of 2 cores, 4 cores, 12 cores, 24 cores and the like, and can design different structures of plugs with different cores, thereby playing the function of preventing misplug.
Drawings
Fig. 1 is an exploded view of an optical fiber connector plug of the present invention.
Fig. 2 is an exploded view of the extension cord socket of the present invention.
FIG. 3 is an exploded view of the fiber optic connector receptacle of the present invention.
Fig. 4 is a cross-sectional view of the optical fiber connector plug of the present invention.
Fig. 5 is a cross-sectional view of the extension socket of the optical fiber connector of the present invention.
FIG. 6 is a cross-sectional view of a fiber optic connector receptacle according to the present invention.
FIG. 7 is a cross-sectional view of the optical fiber connector plug and the receptacle of the present invention.
In the figure: 1-1. a first optical cable; 1-2. a second optical cable; 1-3. a third optical cable; 2. a first net tail; 3. a first seal ring; 4. a first crimp ring; 5. a first rear case; 6. a first ferrule assembly; 7. an open tube holder; 8. an open tube; 9. a first inner frame casing; 10. a first housing assembly; 11. a first dust cap; 12. a second net tail; 13 a second seal ring; 14 a second crimp ring; 15. a second rear housing; 16. a second ferrule assembly; 17. a second inner frame cover; 18. a second housing component; 19. a third seal ring; 20. a second dust cap; 21. a tail sleeve; 22. a third crimp ring; 23. fixing a nut; 24. a rubber sleeve; 25. a third rear housing 26, a third ferrule assembly; 27. a third inner frame sleeve; 28. a fourth seal ring; 29. a third housing assembly; 30. a fifth seal ring; 31. and a third dust prevention cap.
Detailed Description
The invention is further described with reference to the accompanying drawings.
Referring to fig. 1, 3, 4, and 6, an optical fiber connector includes a plug and a receptacle, the plug includes a first optical fiber cable 1-1, a first net tail 2, a first crimp ring 4, a first rear shell 5, a first ferrule assembly 6, an open tube holder 7, an open tube 8, a first inner frame sleeve 9, and a first housing assembly 10, a head end of the first net tail 2 is fixedly connected to a tail end of the first housing assembly 10, a tail end of the first crimp ring 4 extends into the head end of the first net tail 2, a head end of the first crimp ring 4 extends into the first housing assembly 10, the first rear shell 5, the first ferrule assembly 6, the open tube holder 7, and the open tube 8 are sequentially disposed in the first inner frame sleeve 9, the first inner frame sleeve 9 is disposed in the first housing assembly 10, a tail end of the first rear shell 5 is butted with the head end of the first crimp ring 4, the first compression joint ring 4 is installed in a first shell component 10 in a threaded mode, the optical cable is fixed in a compression joint mode after the first compression joint ring is installed, the optical cable and the connector are fixed, the tensile performance of the whole connector is guaranteed, the tail end of the first ferrule component 6 is in butt joint with the head end of the first rear shell 5, the head end of the first ferrule component 6 penetrates through an opening pipe fixer 7 to be in butt joint with an opening pipe 8, the opening pipe fixer 7 is used for fixing the opening pipe 8 and preventing the opening pipe 8 from being pulled out or the ferrules cannot be inserted when the connector is plugged in and pulled out, the first optical cable 1 extends from the tail end of a first net tail 2 and is in butt joint with the first ferrule component 6, the first net tail 2 can protect the optical cable and prevent the signal loss of the optical cable when the optical cable is bent, an anti-misplug structure is arranged outside the head end of the first inner frame sleeve 9, namely the structural design of inner frame sleeve head ends, the connectors with different core numbers can be prevented from being inserted in a mixed mode, meanwhile, an anti-rotation structure is arranged outside the first inner frame sleeve 9, referring to fig. 1, a protruding structure is arranged on the side face, close to the head end, of the first inner frame sleeve 9, a matched concave structure is arranged in the first shell assembly 10, when the first inner frame sleeve 9 extends into the first shell assembly 10, the protruding structure and the concave structure are matched to achieve the anti-rotation purpose, and the direction uniqueness between the plug and the shell is guaranteed; the socket comprises a third optical cable 1-3, a tail sleeve 21, a third press-connection ring 22, a fixing nut 23, a rubber sleeve 24, a third rear shell 25, a third ferrule assembly 26, a third inner frame sleeve 27 and a third housing assembly 29, wherein the third inner frame sleeve 27 is arranged in the tail end of the third housing assembly 29, the tail end of the third housing assembly 29 is provided with a key slot which is matched with a bulge on the top of the third inner frame sleeve 27 and used for preventing rotation when the third inner frame sleeve 27 is inserted, the head end of the third ferrule assembly 26 extends into the tail end of the third inner frame sleeve 27, a plurality of ferrule holes are arranged in the third inner frame sleeve 27 and used for assembling and positioning the third ferrule assembly 26 to ensure the position degree of the third ferrule assembly 26, the tail end of the third ferrule assembly 26 extends into the head end of the third rear shell 25, the head end of the third rear shell 25 is in butt joint with the tail end of the third inner frame sleeve 27, the rubber sleeve 24 is arranged in the tail end of the third ferrule assembly 29, The fixing nut 23 is fixedly connected with an internal thread at the tail end of the third housing assembly 29 through an external thread, the fixing nut 23 and the rubber sleeve 24 prevent the third inner frame sleeve 27 from loosening axially, the head end of the third crimp ring 22 is in butt joint with the tail end of the third rear housing 25, the third crimp ring 22 is used for fixing the connector and the optical cable and providing a certain tensile requirement, the tail sleeve 21 is coated outside the third crimp ring 22, the tail sleeve 21 is used for protecting signal loss when the optical cable is bent, and the third optical cable 1-3 penetrates through the tail sleeve 21 and the third crimp ring 22 and then extends into the tail end of the third rear housing 25 and is in butt joint with the third ferrule assembly 26. The optical cable comprises optical fibers, optical signals are transmitted through the optical fibers, and when the optical cable is used, the optical fibers can be butted by jointing the plug and the socket.
Further, referring to fig. 2 and 5, the optical fiber connector further includes an extension cord, the extension cord includes an extension cord plug and an extension cord socket, since an open tube for ensuring precise coupling of the ferrule is integrated in the plug portion of the optical fiber connector, there is no open tube part in the socket, the extension cord socket includes a second optical cable 1-2, a second net tail 12, a second crimp ring 14, a second back shell 15, a second ferrule assembly 16, a second inner frame sleeve 17, and a second housing assembly 18, a head end of the second net tail 12 is fixedly connected with a tail end of the second housing assembly 18, a tail end of the second crimp ring 14 extends into the head end of the second net tail 12, a head end of the second crimp ring 14 extends into the second housing assembly 18, the second back shell 15 and the second ferrule assembly 16 are disposed in the second inner frame sleeve 17, the second inner frame sleeve 17 is disposed in the second housing assembly 18, the tail end of the second rear shell 15 is in butt joint with the head end of the second crimp ring 14, the tail end of the second ferrule assembly 16 is in butt joint with the head end of the second rear shell 15, the second optical cable 1-2 extends from the tail end of the second net tail 12 and is in butt joint with the second ferrule assembly 16, and the extension cord plug structure is consistent with the plug structure of the optical fiber connector. When the optical fiber connector is used, when the length of the optical fiber connector is insufficient, an extension line can be adopted, a plug of the optical fiber connector is connected with an extension line socket, and an extension line plug is connected with the socket of the optical fiber connector, so that long-distance transmission of optical fibers can be realized.
Further, the first ferrule assembly 6, the second ferrule assembly 16 and the third ferrule assembly 26 are all ceramic or metal ferrule assemblies, and the open tube 8 is a ceramic or metal open tube.
Further, the first ferrule assembly 6, the second ferrule assembly 16 and the third ferrule assembly 26 are all 2-core or 4-core ferrule assemblies, and the open tube 8 is a 2-core or 4-core open tube.
Furthermore, each ferrule of the first ferrule assembly 6, the second ferrule assembly 16 and the third ferrule assembly 26 is sleeved with a spring, and the springs can reduce the gap during the butt joint of the optical fibers, so as to ensure the close fit of the ferrules, thereby reducing the insertion loss. The terminal surface is equipped with the step face before first backshell 5, can be with first inner frame cover 9 zonulae occludens through the buckle on the casing, and the inside step of first backshell 5 after the assembly can provide the holding power for the spring, guarantees the lock pin zonulae occludens of plug and socket.
Further, the spacing between the ferrules of the first, second and third ferrule assemblies 6, 16, 26 is at least 2.7 mm.
Further, the head end of the first net tail 2 is provided with an external thread, the tail end of the first shell component 10 is provided with a matched internal thread, the head end of the second net tail 12 is provided with an external thread, and the tail end of the second shell component 18 is provided with a matched internal thread.
Further, the head end of the first housing component 10 is provided with an internal thread, and the head ends of the second housing component 18 and the third housing component 29 are provided with a mating external thread.
Further, a first sealing ring 3 is arranged outside the head end of the first net tail 2, a second sealing ring 13 is arranged outside the head end of the second net tail 12, and a fourth sealing ring 28 is arranged outside the tail end of the third shell assembly 29. The sealing ring is used for ensuring the waterproof function of the connecting end face of the plug and the socket.
Further, the plug still include with first shell subassembly 10 head end can be dismantled the first dustproof cap 11 of connection, the extension line socket still include with second shell subassembly 18 head end can be dismantled the second dustproof cap 20 of connection, it is sealed through third sealing washer 19 between second shell subassembly 18 and the second dustproof cap 20, the socket still include with third shell subassembly 29 head end can be dismantled the third dustproof cap 31 of connection, it is sealed through fifth sealing washer 30 between third shell subassembly 29 and the third dustproof cap 31, dustproof cap can effectively guarantee that the fiber end face avoids the dust to influence to reduce the coupling loss of optic fibre.
FIG. 7 is a sectional view of the connection of the plug and the receptacle of the optical fiber connector of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. An optical fiber connector comprises a plug and a socket, and is characterized in that the plug comprises a first optical cable (1-1), a first net tail (2), a first crimp ring (4), a first rear shell (5), a first ferrule assembly (6), an open tube fixer (7), an open tube (8), a first inner frame sleeve (9) and a first shell assembly (10), the head end of the first net tail (2) is fixedly connected with the tail end of the first shell assembly (10), the tail end of the first crimp ring (4) extends into the head end of the first net tail (2), the head end of the first crimp ring (4) extends into the first shell assembly (10), the first crimp ring (4) is fixedly connected with the first shell assembly (10), the first rear shell (5), the first ferrule assembly (6), the open tube fixer (7) and the open tube (8) are sequentially arranged in the first inner frame sleeve (9), the first inner frame sleeve (9) is arranged in a first shell component (10), the tail end of the first rear shell (5) is in butt joint with the head end of the first compression joint ring (4), the tail end of the first ferrule component (6) is in butt joint with the head end of the first rear shell (5), the head end of the first ferrule component (6) penetrates through an open pipe fixing device (7) to be in butt joint with an open pipe (8), and the optical cable (1-1) extends into from the tail end of the first net tail (2) and is in butt joint with the first ferrule component (6);
the socket comprises a third optical cable (1-3), a tail sleeve (21), a third crimping ring (22), a fixing nut (23), a rubber sleeve (24), a third rear shell (25), a third ferrule assembly (26), a third inner frame sleeve (27) and a third housing assembly (29), wherein the third inner frame sleeve (27) is arranged in the tail end of the third housing assembly (29), a key groove is formed in the tail end of the third housing assembly (29), a protrusion matched with the key groove is formed in the top of the third inner frame sleeve (27), the head end of the third ferrule assembly (26) extends into the tail end of the third inner frame sleeve (27), the tail end of the third ferrule assembly (26) extends into the head end of the third rear shell (25), the head end of the third rear shell (25) is butted with the tail end of the third inner frame sleeve (27), and the rubber sleeve (24) is arranged in the tail end of the third housing assembly (29), The fixing nut (23) is fixedly connected with an internal thread at the tail end of a third shell component (29) through an external thread, the head end of the third crimp ring (22) is in butt joint with the tail end of a third rear shell (25), the tail sleeve (21) covers the outside of the third crimp ring (22), and the third optical cable (1-3) penetrates through the tail sleeve (21) and the third crimp ring (22) and then extends into the tail end of the third rear shell (25) and is in butt joint with the third ferrule component (26);
the optical fiber connector further comprises an extension line, the extension line comprises an extension line plug and an extension line socket, the extension line socket comprises a second optical cable (1-2), a second net tail (12), a second crimp ring (14), a second rear shell (15), a second ferrule assembly (16), a second inner frame sleeve (17) and a second outer shell assembly (18), the head end of the second net tail (12) is fixedly connected with the tail end of the second outer shell assembly (18), the tail end of the second crimp ring (14) extends into the head end of the second net tail (12), the head end of the second crimp ring (14) extends into the second outer shell assembly (18), the second rear shell (15) and the second ferrule assembly (16) are arranged in the second inner frame sleeve (17), the second inner frame sleeve (17) is arranged in the second outer shell assembly (18), and the tail end of the second ferrule assembly (16) is butted with the head end of the second rear shell (15), the head end of the second rear shell (15) is in butt joint with the tail end of the second inner frame sleeve (17), the head end of the second compression joint ring (14) is in butt joint with the tail end of the second inner frame sleeve (17), the second optical cable (1-2) extends from the tail end of the second net tail (12) and is in butt joint with the second ferrule assembly (16), and the structure of the extension line plug is consistent with that of the optical fiber connector.
2. The fiber optic connector of claim 1, wherein the first ferrule assembly (6), the second ferrule assembly (16), and the third ferrule assembly (26) are all ceramic or metal ferrule assemblies, and the open tube (8) is a ceramic or metal open tube.
3. The fiber optic connector of claim 2, wherein the first ferrule assembly (6), the second ferrule assembly (16), and the third ferrule assembly (26) are each 2-core or 4-core ferrule assemblies, and the open tube (8) is a 2-core or 4-core open tube.
4. The optical fiber connector according to claim 3, wherein each ferrule of the first ferrule assembly (6), the second ferrule assembly (16) and the third ferrule assembly (26) is sleeved with a spring.
5. The fiber optic connector of claim 3, wherein the spacing between the ferrules of the first, second and third ferrule assemblies (6, 16, 26) is at least 2.7 mm.
6. Optical fiber connector according to any of claims 1-5, characterized in that the head end of the first net tail (2) is provided with an external thread, the end of the first housing component (10) is provided with a mating internal thread, the head end of the second net tail (12) is provided with an external thread, and the end of the second housing component (18) is provided with a mating internal thread.
7. Optical fiber connector according to claim 6, characterized in that the head end of the first housing component (10) is provided with an internal thread, and the head ends of the second (18) and third (29) housing components are provided with a mating external thread, the thread type being metric, T-thread or 3-start thread.
8. The optical fiber connector according to claim 7, wherein a first sealing ring (3) is provided outside the head end of the first net tail (2), a second sealing ring (13) is provided outside the head end of the second net tail (12), and a fourth sealing ring (28) is provided outside the tail end of the third housing component (29).
9. The fiber optic connector of claim 8, wherein the plug further comprises a first dust cap (11) removably coupled to the head end of the first housing assembly (10), the extension cord receptacle further comprises a second dust cap (20) removably coupled to the head end of the second housing assembly (18), the second housing assembly (18) and the second dust cap (20) are sealed by a third sealing ring (19), the receptacle further comprises a third dust cap (31) removably coupled to the head end of the third housing assembly (29), and the third housing assembly (29) and the third dust cap (31) are sealed by a fifth sealing ring (30).
CN201910503738.2A 2019-06-12 2019-06-12 Optical fiber connector Active CN110244410B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910503738.2A CN110244410B (en) 2019-06-12 2019-06-12 Optical fiber connector

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Application Number Priority Date Filing Date Title
CN201910503738.2A CN110244410B (en) 2019-06-12 2019-06-12 Optical fiber connector

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CN110244410A CN110244410A (en) 2019-09-17
CN110244410B true CN110244410B (en) 2021-02-19

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Publication number Priority date Publication date Assignee Title
CN111781682B (en) * 2020-07-28 2022-02-15 广东亿源通科技股份有限公司 Lockable optical fiber connector

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Publication number Priority date Publication date Assignee Title
US8939654B2 (en) * 2012-09-27 2015-01-27 Adc Telecommunications, Inc. Ruggedized multi-fiber fiber optic connector with sealed dust cap
TWM524580U (en) * 2016-02-24 2016-06-21 Amphenol Fiber Optic China Multiple core optical fiber socket and multiple core optical fiber plug incorporated with the same
CN205562885U (en) * 2016-04-07 2016-09-07 安费诺光纤技术(深圳)有限公司 Optical fiber connection device
CN207557535U (en) * 2017-12-25 2018-06-29 金信诺(常州)轨道信号系统科技有限公司 Novel 4 core open air optical fiber connector plug
CN109270639B (en) * 2018-10-18 2024-02-20 惠州市飞博康实业有限公司 Outdoor optical fiber connector

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