CN117930437A

CN117930437A - Optical fiber connector

Info

Publication number: CN117930437A
Application number: CN202310575411.2A
Authority: CN
Inventors: 吴嘉容; 许琮尧
Original assignee: Lianxun Communication Tianjin Co ltd
Current assignee: Lianxun Communication Tianjin Co ltd
Priority date: 2022-10-24
Filing date: 2023-05-19
Publication date: 2024-04-26
Also published as: TWM637712U

Abstract

The invention relates to an optical fiber connector, which comprises a coupling piece, a core tube assembly, a sleeve, a metal retaining piece and a pressing piece; the core tube assembly is arranged in the coupling piece, the metal retaining piece is combined with one end of the coupling piece, the elastic arm of the metal retaining piece obliquely extends to the other end of the coupling piece, two sides of the elastic arm are respectively provided with a plurality of retaining structures, the sleeve is arranged at the other end of the coupling piece and is combined with the pressing piece, and the pressing part of the pressing piece extends to the elastic arm; the sleeve joint hole of the metal retaining member is in butt joint with the butt joint block of the coupling member in a riveting mode, so that the coupling member and the metal retaining member are stably positioned.

Description

Optical fiber connector

Technical Field

The present invention relates to a connector, and more particularly to an optical fiber connector.

Background

Optical fibers are light-conducting tools, and connectors are necessary to mediate the optical fibers to the electronic devices in order to connect the optical fibers to various electronic devices for the information transmitted by the optical fibers to be used by the electronic devices. The general optical fiber connector is matched with the male optical fiber connector by a female Adapter (Adapter), the female Adapter is arranged on the electronic device, and the male optical fiber connector can form a connection relationship when being inserted into the female Adapter, thereby achieving the purposes of clamping and data transmission. The optical fiber connector is widely applied to an optical communication network, a data network or a cable television network due to the advantage of small volume.

Referring to fig. 1 and 2, fig. 1 is a schematic view of a prior art optical fiber connector a, and fig. 2 is a schematic side view of a prior art optical fiber connector a and an adapter B when they are plugged; the conventional male optical fiber connector a has an optical fiber housing A1 made of plastic and an elastic arm A2 above the optical fiber housing A1, the elastic arm A2 extends obliquely outwards from the top of the optical fiber housing A1, and two sides of the elastic arm A2 are integrally formed with a stop block a21, so that the stop block a21 is selectively clamped or separated from a fastening hole B1 of the adapter B, and because the optical fiber housing A1 and the elastic arm A2 are of a structure formed by adopting single plastic, the elastic arm A2 is easy to break during plugging and bending.

Disclosure of Invention

According to some embodiments, an optical fiber connector includes a coupling member, a core tube assembly, a ferrule, a metal backstop, and a press; the coupling piece is provided with an accommodating space and a plurality of openings, each opening is positioned at two ends of the coupling piece and communicated with the accommodating space, and the coupling piece is provided with a butt joint block; the core tube assembly is arranged in the accommodating space; the sleeve is combined with the opening; the metal retaining member is provided with a combination part, the combination part is combined with one end of the coupling member, the metal retaining member comprises a spring arm, the spring arm obliquely extends from the combination part towards the other end of the coupling member, two sides of the spring arm are respectively provided with a plurality of retaining structures, the combination part is provided with a base plate and a sleeving hole positioned on the base plate, and the sleeving hole is butted with the butting block; the pressing piece is provided with a sleeving part and a pressing part, the sleeving part is sleeved on the sleeve, and the pressing part extends from the sleeving part to the elastic arm.

Preferably, the sleeving part is provided with a buckling hole, the buckling hole is sleeved on the sleeve, and the sleeving part contacts with one end face of the other end of the coupling piece, so that a pressing piece is arranged between the sleeve and the coupling piece.

Preferably, each retaining structure protrudes outwards from two sides of the spring arm, and each retaining structure contacts with the inner wall surfaces of two butting grooves inside the adapter in a surface mode.

Preferably, the pressing piece is provided with an extension section, and the extension section is positioned between the pressing part and the sleeving part.

Preferably, the coupling member has a butt joint portion located on an inner wall surface of the accommodating space and adjacent to the opening, and the sleeve has a joint portion coupled to the joint portion.

Preferably, an optical fiber connector is proposed that includes a plurality of coupling members, a plurality of core tube assemblies, a plurality of ferrules, a plurality of metal stops, and a press; each coupling piece is provided with an accommodating space and a plurality of openings, each opening is positioned at two ends of the coupling piece and communicated with the accommodating space, and each coupling piece is provided with a butt joint block; each core tube component is arranged in each accommodating space; each sleeve is respectively combined with the opening of each coupling piece; each metal retaining member is provided with a combination part, each combination part is combined with one end of each coupling member, each metal retaining member comprises a spring arm, each spring arm obliquely extends from the combination part towards the other end of the coupling member, two sides of each spring arm are respectively provided with a plurality of retaining structures, each combination part is provided with a base plate and a sleeving hole positioned on the base plate, and each sleeving hole is in butt joint with each butt joint block; the pressing piece is provided with a plurality of sleeving parts and pressing parts, each sleeving part is sleeved on each sleeve, and the pressing parts extend from the sleeving parts to the spring arms.

To sum up, according to some embodiments, the metal retaining member of the optical fiber connector is fastened to the adapter by adopting a metal member, so as to prolong the service life of the optical fiber connector; secondly, according to some embodiments, the sleeve joint hole of the metal retaining member is butted with the butting block of the coupling member, and the butting block is combined with the sleeve joint hole in a riveting manner, so that the coupling member and the metal retaining member are stably positioned.

Drawings

FIG. 1 is a schematic diagram showing the appearance of a prior art optical fiber connector.

FIG. 2 is a schematic side view of a prior art fiber optic connector with an adapter.

FIG. 3 is a schematic view of the back side of a fiber optic connector according to some embodiments.

FIG. 4 illustrates an exploded view of the front face of a fiber optic connector without the core tube assembly exploded, according to some embodiments.

FIG. 5 illustrates an exploded view of the front face of a fiber optic connector, exploded out of the core tube assembly, according to some embodiments.

FIG. 6 illustrates an exploded view of the back side of a fiber optic connector, according to some embodiments.

FIG. 7 is a schematic side view of a fiber optic connector with an adapter according to some embodiments.

FIG. 8 is a schematic side view of a fiber optic connector after mating with an adapter, according to some embodiments.

Symbol description

100 Optical fiber connector

1 Coupling element

1B end face

10 Accommodating space

11 Opening(s)

17 Butt joint part

18 Butt joint block

2 Core tube assembly

21 Contact pin

25 Spring

3 Sleeve pipe

37 Joint portion

4, Metal backstop

41 Joint portion

41A substrate

418 Socket hole

42 Spring arm

44 Backstop structure

442 Flour

5 Pressing piece

51 Socket joint

511 Button hole

52 Pressing part

57 Extension section

7 Compression member

8 Tail sleeve

9 Adapter

95 Butt joint groove

A-fiber connector

A1 optical fiber housing

A2 elastic arm

A21 stop block

B adapter

B1, buckling holes.

Description of the embodiments

Referring to fig. 3, fig. 3 is a schematic view of the back surface of the optical fiber connector 100; preferably, the fiber optic connector 100 is adapted for use on equipment in the telecommunications, indoor wiring, industry, military, aerospace, or medical industries, such as aircraft components, connected by the fiber optic connector 100. Preferably, the fiber optic connector 100 includes a coupling member 1, a core tube assembly 2, a ferrule 3, a metal backstop 4, and a push-on member 5 (as shown in fig. 4 and 5).

The coupling element 1 is provided with a containing space 10 (shown in fig. 5) and a plurality of openings 11, and each opening 11 is positioned at two ends of the coupling element 1 and communicated with the containing space 10; the core tube assembly 2 is arranged in the accommodating space 10; the sleeve 3 is combined with the opening 11; the metal retaining member 4 has a coupling portion 41, the coupling portion 41 is coupled to one end of the coupling member 1, the metal retaining member 4 includes a spring arm 42, the spring arm 42 extends obliquely from the coupling portion 41 toward the other end of the coupling member 1, and two sides of the spring arm 42 are respectively provided with a plurality of retaining structures 44; the pressing member 5 has a socket portion 51 and a pressing portion 52, the socket portion 51 is socket-coupled to the sleeve 3, and the pressing portion 52 extends from the socket portion 51 to the arm 42.

Preferably, the coupling part 41 has a base plate 41a and a socket hole 418 located on the base plate 41a, the coupling element 1 has a butt joint block 18, the socket hole 418 is butt-jointed to the butt joint block 18, and the butt joint block 18 is combined with the socket hole 418 in a riveting manner, so that the coupling element 1 and the metal retaining member 4 are fixed. Preferably, the coupling portion 41 is a cover plate, and the coupling portion 41 covers the top of the front end of the coupling member 1.

After the coupling element 1 and the metal retaining element 4 are assembled, the metal retaining element 4 made of complete metal is used as the butt joint with the adapter 9 (as shown in fig. 8), the firm metal retaining element 4 can prevent damage, the service life of the optical fiber connector 100 is prolonged, and the metal retaining element 4 has the functions of high temperature resistance and low temperature resistance.

In fig. 3 and 4, preferably, the socket portion 51 of the pressing member 5 is a circular ring, the socket portion 51 has a fastening hole 511, the fastening hole 511 is sleeved on the sleeve 3, and the socket portion 51 contacts the end face 1b of the other end of the coupling member 1, so that the pressing member 5 is disposed between the sleeve 3 and the coupling member 1, the fixing problem of the pressing member 5 is solved, the pressing member 5 is sleeved on the two sleeve 3, the pressing member 5 combines the two coupling members 1, the overall rigidity is increased, the pressing member 5 limits each degree of freedom of the two coupling members 1, and the distance between the two coupling members 1 is limited.

Preferably, two coupling members 1 may be used in combination (as shown in fig. 3), but not limited thereto, and in one embodiment, one coupling member 1 may be used, or three or more coupling members 1 may be used: preferably, two coupling members 1 are matched with one pressing member 5 structure, but not limited to, one coupling member 1 may be matched with one pressing member 5 structure, or more than three coupling members 1 may be matched with only one pressing member 5 structure.

Referring to fig. 4 and 5, two coupling members 1 are preferably assembled with core tube assemblies 2, respectively, to form a dual-core type optical fiber connector 100, which has the advantage of saving wiring space.

Referring to fig. 3 and 4, the optical fiber connector 100 preferably includes a plurality of coupling members 1, a plurality of core tube assemblies 2, a plurality of ferrules 3, a plurality of metal retaining members 4 and a pressing member 5; each coupling element 1 is provided with a containing space 10 and a plurality of openings 11, each opening 11 is positioned at two ends of the coupling element 1 and communicated with the containing space 10, and each coupling element 1 is provided with a butt joint block 18; each core tube assembly 2 is arranged in each accommodating space 10; each sleeve 3 is respectively combined with the opening 11 of each coupling piece 1; each metal retaining member 4 has a coupling portion 41, each coupling portion 41 is coupled to one end of each coupling member 1, each metal retaining member 4 includes an elastic arm 42, the elastic arm 42 extends obliquely from the coupling portion 41 toward the other end of the coupling member 1, each elastic arm 42 has a plurality of retaining structures 44 on two sides, each coupling portion 41 has a base plate 41a and a socket hole 418 located on the base plate 41a, and each socket hole 418 is abutted to each abutting block 18; the pressing member 5 has a plurality of socket portions 51 and pressing portions 52, each socket portion 51 is socket-coupled to each sleeve 3, and the pressing portions 52 extend from the socket portions 51 toward the spring arms 42.

Referring to fig. 3, two coupling members 1 are preferably used as an illustration, the coupling members 1 are arranged side by side, each coupling member 1 has a rectangular parallelepiped structure, a spacing area is provided between the coupling members 1, and a gap is reserved between the coupling members 1 in the spacing area.

Referring to fig. 5 to 6, fig. 5 is an exploded view of the front surface of the optical fiber connector 100, the core tube assembly 2 is exploded, and fig. 6 is an exploded view of the rear surface of the optical fiber connector 100. Preferably, the core tube assembly 2 is arranged within the coupling 1, the core tube assembly 2 comprising the pin 21 and the spring 25; the contact pin 21 is positioned at the opening 11, the contact pin 21 is combined with a core tube made of ceramic material, the core tube is used for coating the optical fiber, the optical fiber is cut into Yu Xinguan core holes, and the contact pin 21 is positioned at one end of the core tube; the sleeve 3 is made of metal materials, one end of the sleeve 3 is sleeved with the other end of the core tube, the other end of the sleeve 3 is connected with the compression piece 7, the compression piece 7 is combined with the tail sleeve 8, the tail sleeve 8 is sleeved on the transmission wire outer cape, the compression piece 7 increases the tension, and the optical fiber connector 100 is prevented from being separated from the wire outer cape when the wire is pulled forcefully; the sleeve 3 is assembled at the rear end of the coupling piece 1; the spring 25 is sleeved at the other end of the core tube, the spring 25 is arranged in the sleeve 3, one end of the spring 25 abuts against the core tube, the other end of the spring 25 abuts against the sleeve 3, and the spring 25 is used for buffering the core tube.

Referring to fig. 5 to 6, preferably, the pressing portion 52 of the pressing member 5 is an arc-shaped spring, the arc-shaped spring is integrated with the socket portion 51, and the arc-shaped spring extends outward from the top of the socket portion 51 to the top of the spring arm 42.

Referring to fig. 6, preferably, the coupling element 1 has a butt joint portion 17, the butt joint portion 17 is located on the inner wall surface of the accommodating space 10 and adjacent to the opening 11, the sleeve 3 has a joint portion 37, and the butt joint portion 17 is combined with the joint portion 37; preferably, the abutting portion 17 is an internal thread, the engaging portion 37 is an external thread, and the internal thread and the external thread are in threaded engagement, but not limited thereto; preferably, the abutting portion 17 and the engaging portion 37 may be engaged with each other in a concave-convex structure, or the abutting portion 17 and the engaging portion 37 may be engaged with each other in an interference-tightening manner.

Referring to fig. 6, preferably, the pressing member 5 has an extension 57, the extension 57 is located between the pressing portion 52 and the socket portion 51, and the extension 57 may be a single plate or multiple plates.

Referring to fig. 7, fig. 7 is a schematic side view of the optical fiber connector 100 when plugged with the adapter 9; preferably, when the pressing portion 52 of the pressing member 5 is located at the pressing position, the rear end of the spring arm 42 is pushed downward by the pressing portion 52, so that the spring arm 42 drives each retaining structure 44 to displace downward inside the adapter 9.

Referring to fig. 8, fig. 8 is a schematic side view of the optical fiber connector 100 after being plugged into the adapter 9; preferably, when the pressing portion 52 of the pressing member 5 is located at the original position, a height is formed between the rear end of the spring arm 42 and the outer surface of the coupling member 1, and the pressing portion 52 contacts the top of the rear end of the spring arm 42, so that the spring arm 42 moves upward to the original position due to the repulsive force, and the spring arm 42 drives each retaining structure 44 to move upward, so that each retaining structure 44 is fastened to two abutting grooves 95 of the adapter 9, and the optical fiber connector 100 is fastened inside the housing of the adapter 9.

Preferably, each retaining structure 44 protrudes outwards from two sides of the spring arm 42; after the optical fiber connector 100 is plugged into the adapter 9, the end surfaces of the retaining structures 44 are contacted with the inner wall surfaces of the two butting grooves 95 in the adapter 9 in a surface 442 mode, the end surfaces of the retaining structures 44 are firmly buckled with the butting grooves 95 to prevent disengagement, and the structures of the retaining structures 44 have the function of increasing the structural strength.

In summary, according to some embodiments, the metal retaining member of the optical fiber connector is fastened to the adapter by a metal member, so as to prolong the service life of the optical fiber connector; secondly, according to some embodiments, the sleeve joint hole of the metal retaining member is butted with the butting block of the coupling member, and the butting block is combined with the sleeve joint hole in a riveting manner, so that the coupling member and the metal retaining member are stably positioned.

Claims

1. An optical fiber connector, characterized in that:

The coupling piece is provided with an accommodating space and a plurality of openings, each opening is positioned at two ends of the coupling piece and communicated with the accommodating space, and the coupling piece is provided with a pair of connecting blocks;

a core tube assembly disposed in the receiving space;

A sleeve coupled to the opening;

The metal retaining piece is provided with a combination part, the combination part is combined with one end of the coupling piece, the metal retaining piece comprises a spring arm, the spring arm obliquely extends from the combination part to the other end of the coupling piece, two sides of the spring arm are respectively provided with a plurality of retaining structures, the combination part is provided with a base plate and a sleeving hole positioned on the base plate, and the sleeving hole is in butt joint with the butt joint block; and

The pressing piece is provided with a sleeving part and a pressing part, the sleeving part is sleeved on the sleeve, and the pressing part extends from the sleeving part to the spring arm.

2. The fiber optic connector of claim 1, wherein: the sleeve joint part is provided with a buckling hole, the buckling hole is sleeved on the sleeve, and the sleeve joint part contacts with one end face of the other end of the coupling piece, so that the pressing piece is arranged between the sleeve and the coupling piece.

3. The fiber optic connector of claim 1, wherein: each retaining structure protrudes outwards from two sides of the spring arm, and each retaining structure is contacted with the inner wall surfaces of two butt joint grooves inside an adapter in a one-sided mode.

4. The fiber optic connector of claim 1, wherein: the pressing piece is provided with an extension section, and the extension section is positioned between the pressing part and the sleeving part.

5. The fiber optic connector of claim 1, wherein: the coupling piece is provided with a butt joint part, the butt joint part is positioned on the inner wall surface of the accommodating space and adjacent to the opening, the sleeve is provided with a joint part, and the butt joint part is combined with the joint part.

6. An optical fiber connector, characterized in that:

Each coupling piece is provided with a containing space and a plurality of openings, each opening is positioned at two ends of the coupling piece and communicated with the containing space, and each coupling piece is provided with a pair of connecting blocks;

A plurality of core tube assemblies, each core tube assembly is arranged in each accommodating space;

A plurality of sleeves, each of which is respectively combined with the opening of each coupling piece;

Each metal retaining member is provided with a combination part, each combination part is combined with one end of each coupling member, each metal retaining member comprises a spring arm, each spring arm obliquely extends from the combination part towards the other end of each coupling member, each spring arm is respectively provided with a plurality of retaining structures at two sides, each combination part is provided with a substrate and a sleeving hole positioned on the substrate, and each sleeving hole is butted with each butting block; and

The pressing piece is provided with a plurality of sleeving parts and a pressing part, each sleeving part is sleeved on each sleeve, and the pressing part extends from the sleeving part to the elastic arm.