CN201269937Y

CN201269937Y - Optical fiber connector

Info

Publication number: CN201269937Y
Application number: CNU2008201588665U
Authority: CN
Inventors: 夏显忠; 孙文德; 黄志亮
Original assignee: Greatwall Information Industry Co Ltd; Changsha HCC Hiden Technology Co Ltd
Current assignee: Greatwall Information Industry Co Ltd; Changsha HCC Hiden Technology Co Ltd
Priority date: 2008-10-23
Filing date: 2008-10-23
Publication date: 2009-07-08
Anticipated expiration: 2018-10-23

Abstract

The utility model discloses an optical fiber connector, one end of which is provided with ST/FC military optical fiber sockets used in pair and the other end of which are corresponding standard LC/FC/MU optical fiber plugs, comprising optical fiber plugs, plug lock catches, optical fiber wires, optical fiber lock catches, locating rings, optical fiber pipe sheathes, a shell body, a shell cover, a dustproof cover, a waterproof gasket, a sealed spacer and encapsulation silicon gel. A bump design used for fastening the optical fiber plugs, the optical fiber pipe sheathes and optical fiber lock catches and an encapsulation design used for protecting optical fiber wires are provided in the shell body. The optical fiber connector is a sealed optical fiber connector which realizes fast plugging and pulling, stable connection and vibration and shock resistance and has small volume and high reliability.

Description

A kind of joints of optical fibre

Technical field

The utility model relates to a kind of connector, particularly relates to the joints of optical fibre that a kind of fiber optic communication field is used.

Background technology

In the prior art, general military optical fiber interface all adopts is that the anti-vibrating and impact performance is strong, decay resistance is high, the ST of good seal performance or FC interface, and general photoelectric conversion module provides wherein a kind of interface among LC, SC or the MU on the circuit board.Common mode is to adopt optical patchcord to carry out light signal between two kinds of distinct interfaces to connect.This mode has the following disadvantages: 1, optical patchcord is difficult to bear the stress that extraneous vibration and impact bring, and cause connecting unreliable, unstable, until inefficacy; 2, the plastic protective layer of optical patchcord breaks under low temperature environment easily, and allows extraneous dust, contaminating impurity optical fiber; 3, twice switching of optical patchcord increased attenuated optical signal, reduced the reliability of interface.

The utility model content

Technical problem to be solved in the utility model provides a kind of realization fast insert-pull, connect stable, the joints of optical fibre of the small size of anti-vibrating and impact performance, corrosion resistance and good, highly reliable, sealing.

In order to address the above problem, the joints of optical fibre that the utility model provides, housing is provided with cap, an end is provided with division board in described housing, the other end is provided with the rear end projection, two optical fiber cable one ends are separately fixed in separately the Optical fiber plug that meets the LC/SC/MU design standards, the tight described Optical fiber plug of plug latch padlock, described two optical fiber cable other ends put optical fiber snap close and locating ring successively and insert in the rear end spot-facing of optical fiber pipe box separately, described optical fiber snap close is bumped in the projection of described rear end fixing, described optical fiber tube puts and is provided with and the pinpoint locating platform in described housing installation site, the outer end of described optical fiber pipe box is provided with the fiber-optical socket of the design standards that meets ST or FC, described optical fiber pipe box is bumped in the cavity that the described division board of described housing forms, all structural member embeddings in the described housing have silica gel, and described inner walls face is provided with gasket seal.

Described fiber-optical socket is provided with dust cap and waterproof washer.

Described housing is provided with mounting hole.

Adopt the joints of optical fibre of technique scheme, its end is the military fiber-optical socket of ST/FC that uses in pairs, its other end is the LC/FC/MU Optical fiber plug of the standard of correspondence, Zu Zhuan Optical fiber plug, plug snap close, optical fiber cable, optical fiber snap close, locating ring, optical fiber pipe box, housing, cap, dust cap, waterproof washer, gasket seal and embedding silica gel in regular turn.Be useful on the projection design of fastening Optical fiber plug, optical fiber pipe box, optical fiber snap close and the embedding design of protection optical fiber cable in the housing, compared with prior art, advantage of the present utility model is:

1, the utility model joints of optical fibre is compatible good, its end is the military fiber-optical socket of ST/FC that uses in pairs, its other end is the LC/FC/MU Optical fiber plug of the standard of correspondence, and these serial joints of optical fibre can satisfy the request for utilization of various military optical fiber interfaces.

2, the integrated design of LC/FC/MU Optical fiber plug of military fiber-optical socket of duplexing ST/FC and standard, can be directly and photoelectric conversion module achieve a butt joint, reduced the signal attenuation that light signal produces in switching repeatedly, strengthened the reliability of optical fiber interface.

3, optical fiber cable is accurately located in the joints of optical fibre, and is rigidly fixed by structural member, has eliminated extraneous stress, has guaranteed the reliable connection of light signal under vibration, shock environment.

4, optical fiber cable by the silica gel embedding, has avoided optical fiber cable to be subjected to the destruction of external thermal stress and chemical stress in the joints of optical fibre, has guaranteed that product can operate as normal under the environment of low temperature, damp and hot, mould.

5, the joints of optical fibre of the present utility model, the design of employing sealing, housing, cap, embedding silica gel, dust cap, waterproof washer, gasket seal connect an integral body, optical fiber cable is sealed in wherein, all web member all adopts metal material, add the effect of resilient seal packing ring pad, make it have favorable waterproof property and Corrosion Protection.

6, the gasket seal that the seamless installation of adopting between the joints of optical fibre of the present utility model and the equipment, centre have been filled is flexible conductive rubber material, has blocked the coupling path of electromagnetic interference source from connector position access arrangement inside.

In sum, the utility model is a kind of realization fast insert-pull, connects stablely, and the joints of optical fibre of the small size of anti-vibrating and impact performance, corrosion resistance and good, highly reliable, sealing are applicable to various bad working environment, and can keep communication efficiency preferably.

Description of drawings

Fig. 1 is an external form synoptic diagram of the present utility model;

Fig. 2 is a STRUCTURE DECOMPOSITION synoptic diagram of the present utility model;

Fig. 3 is the ferrule structural representation;

Fig. 4 is the shell structure synoptic diagram.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, optical fiber snap close 4, locating ring 5, optical fiber pipe box 6, housing 7, cap 8, dust cap 9 all adopt aluminum alloy materials, the surface conduction oxidation processes.Sea in damp and hot, mould, salt mist environment very severe is used in the environment, and housing 7 and cap 8 also can adopt stainless steel material, and surface passivation is handled.Optical fiber plug 1 standard compliant LC/SC/MU design standards, plug snap close 2 meet duplexing LC/SC/MU design standards after assembling with Optical fiber plug 1.The outer end fiber-optical socket 17 of optical fiber pipe box 6 meets the design standards of ST or FC, and dust cap 9 is corresponding thereupon.Dust cap 9, waterproof washer 10 and gasket seal 11 adopt the elastic conduction elastomeric material.One end of two optical fiber cables is separately fixed at separately in the Optical fiber plug 1, again with two Optical fiber plugs 1 of plug snap close 2 lockings, the other end puts optical fiber snap close 4 and locating ring 5 successively, insert then in the rear end spot-facing 14 of optical fiber pipe box 6 separately, be bumped in the housing 7 rear end projections 16 optical fiber snap close 4 fixing, optical fiber pipe box 6 is bumped in the cavity that the division board 15 of housing 7 forms, optical fiber pipe box 6 is provided with and the pinpoint locating platform 13 in housing 7 installation sites, accurately locate the installation site of the 13 pairs of fiber-optical sockets 17 of locating platform on the ferrule 6, rear end spot-facing 14 and locating ring 5, optical fiber snap close 4, one end of the division board 15 common fixed fiber lines 3 on the housing 7, rear end projection 16 on the housing 7 and plug snap close 2 are accurately located and are rigidly fixed Optical fiber plug 1 jointly, carry out embedding with all structural members in 12 pairs of housing 7 cavitys of silica gel, after normal temperature cure in 12 hours, load onto cap 8, tighten trip bolt.Optical fiber cable 3 is accurately located by structural member in housing 7, simultaneously by silica gel 12 unstressed tight embeddings, guarantee to do the destruction that optical fiber cable itself that light signal connects medium is not easy to receive extraneous mechanical stress, thermal stress, chemical stress, guaranteed the reliability that the signal of joints of optical fibre inside in rugged surroundings connects.Again waterproof washer 10 is put into dust cap 9, utilize the screw thread of an end FC fiber-optical socket of the screw thread of dust cap 9 and ferrule 6 to screw again.If what an end of ferrule 6 adopted is the ST fiber-optical socket, the dust cap 9 of available band bayonet socket screw thread.At last load onto gasket seal 11 at the internal face of optical fiber housing.The design protection of dust cap 9, waterproof washer 10 the external fiber interface under the idle state.Gasket seal 11 utilizes electric conductivity and the elasticity of itself, has blocked the coupling path of electromagnetic interference source by joints of optical fibre installed surface access arrangement inside, has sealed installed surface simultaneously, prevents the infiltration to device interior of salt fog, mould.4 mounting holes 18 on the housing 7 provide the screw restraint location for the joints of optical fibre are rigidly fixed on the equipment.Turn on this 4 screws, can will break away from the photoelectric conversion module in the direct slave unit of the joints of optical fibre.

The utility model one end is the military fiber-optical socket 17 of ST/FC that uses in pairs, and its other end is the LC/FC/MU Optical fiber plug 1 of the standard of correspondence, can dock with realization light signal in the photoelectricity conversion module.

Claims

1, a kind of joints of optical fibre, it is characterized in that: housing (7) is provided with cap (8), an end is provided with division board (15) in described housing (7), the other end is provided with rear end projection (16), two optical fiber cable (3) one ends are separately fixed in separately the Optical fiber plug that meets the LC/SC/MU design standards (1), plug snap close (2) is locked described Optical fiber plug (1), described two optical fiber cables (3) other end puts optical fiber snap close (4) and locating ring (5) successively and inserts in the rear end spot-facing (14) of optical fiber pipe box (6) separately, described optical fiber snap close (4) is bumped in the described rear end projection (16) fixing, described optical fiber pipe box (6) is provided with and the pinpoint locating platform in described housing (7) installation site (13), the outer end of described optical fiber pipe box (6) is provided with the fiber-optical socket (17) of the design standards that meets ST or FC, described optical fiber pipe box (6) is bumped in the cavity that the described division board (15) of described housing (7) forms, all structural member embeddings in the described housing (7) have silica gel (12), and described housing (7) internal face is provided with gasket seal (11).

2, the joints of optical fibre according to claim 1 is characterized in that: described fiber-optical socket (17) is provided with dust cap (9) and waterproof washer (10).

3, the joints of optical fibre according to claim 1 and 2 is characterized in that: described housing (7) is provided with mounting hole (18).