CN1155667A - Duplex connector - Google Patents

Abstract

A duplex connector system is provided for coupling two individual simplex fiber optic connectors in a basically side-by-side alignment. Each fiber optic connector includes a housing in which an optical fiber cable is terminated through a rear end of the housing. First and second strain relief boots are respectively interengageable with the housings of the connectors at the rear ends thereof and encompass the optical fiber cables. Resilient portions interconnect the first and second strain relief boots and are oriented therebetween for enabling the two boots to hold the connectors in their side-by-side alignment.

Description

Duplex connector

The present invention generally speaking relates to joints of optical fibre technology, a kind of duplex connector system that particularly two single single worker's joints of optical fibre is combined side by side.

Optical fibre device adopts sub-thread or multiply optical fiber, and every optical fiber all has round inner glass fibre core, and fibre core is wrapped with the different coverings of refractive index.Light is propagated along fibre core, all reflects from the interface between fibre core and the covering.This device can be used as transmission line, for the luminous energy of transmission bearer information.Transmission line can be formed by simple optical fiber, also can tie into fibre bundle by multifiber and form.In addition, some transmission lines can dispose side by side, for along each bar independently transmission line transmission information simultaneously use.

Originally, fibre system adopted single worker's interconnection system, by many single connector inserts each single fiber optic cable termination.In single system, the transmission of information and reception can only hocket, thereby the quantity of information that simplex system can send and receive in preset time is restricted.

For improving the quantity of information that can in fibre system, circulate, developed multichannel system.This class multichannel system comprises duplex connector plug-in unit and the optical cable that for example can post a letter simultaneously and collect mail.Therefore, adopt duplex system can improve the transmission of Information amount greatly.

Although above-mentioned benefit is arranged, multichannel optical fiber system is newer things after all, and at present employed much all is simplex system and single Ministry of worker part, for example ST and SC formula connector.Therefore, single Ministry of worker part is easy to obtain, and price is more cheap, and this is because ready-made stock is arranged.In addition, reequip existing simplex system with duplex or other multichannel parts of special use, if do not increase cost, it is inconvenient implementing.Therefore, needing a kind of single Ministry of worker part that both had been applicable to also is applicable to duplexing part, single Ministry of worker part can be interconnected in duplex structure and carry out the interconnection system that the data duplex is transferred.For address this problem the design proposal that has proposed have multiple, be in general adopt a kind of be clipped on two single connector shells that two connectors are fixing side by side, form duplex connector but adaptive member that can relative motion between two single single worker's connectors.

Above-mentioned the sort of adaptive member has such problem: except that the common component of the joints of optical fibre, also need to be equipped with other member or assembly parts (being adapter) to each adapter.People's such as Granting of patent right Basista U.S. Pat 4,953,929 discloses wherein a kind of this class adapter, also this patent content is included here, for your guidance.Like this, Fu Jia adapter has increased the expense and the complicacy of duplexing assembly.The present invention has adopted diverse method, makes the dual duplex connector assembly from two single worker's connectors, need not additional in addition adaptive member.

Therefore, the purpose of this invention is to provide a kind of novel through improved duplex connector system, for the usefulness that two single single worker's joints of optical fibre are combined side by side.

Such as disclosed herein, each joints of optical fibre by its housing rear side with cable termination in housing.The present invention has been equipped with first and second stress elimination overcoat to the joints of optical fibre and can be bonded with each other with connector shell respectively at the connector shell rear side.First and second stress are eliminated overcoat and are interconnected by an elastic component, and elastic component is oriented between two overcoats, and two overcoats can be fixed two connectors side by side.

In most preferred embodiment of the present invention, the elastic component that stress is eliminated overcoat and interconnection constitutes integrated member, is made by plastic material.Two overcoats are cylindrical usually, and afterbody is tapered, and elastic component is then tangentially extended each other by the thin bar of a pair of integral body and constitutes.

Can know understanding other purpose of the present invention, characteristics and advantage from the detailed description of doing below in conjunction with accompanying drawing.

Describe the characteristics of novelty of the present invention in this instructions appending claims in detail.Can be well understood to characteristics of the present invention referring to the explanation of doing below in conjunction with accompanying drawing.In the accompanying drawing, same numbering is represented same parts, wherein:

The skeleton view of Fig. 1 duplex connector system that to be the present invention combine two single single worker's joints of optical fibre side by side;

Figure 1A is the skeleton view of the metal shell plug-in unit of one of them connector;

Fig. 2 is the enlarged perspective of integral sleeve member;

Fig. 3 is the top plan view of integral sleeve member, and one of them overcoat illustrates with cut-open view;

Fig. 4 is the side view of integral sleeve member;

Fig. 5 is the end-view that the direction of total 5-5 line from Fig. 4 is looked;

Fig. 6 is the top plan view of subassembly shown in Figure 1;

Fig. 7 and Fig. 6 are similar, but the joints of optical fibre have changeed 90 degree from its position shown in Figure 6;

Fig. 8 is the end-view that total 8-8 line direction from Fig. 6 is looked;

Fig. 9 is the end-view that total 9-9 line direction from Fig. 7 is looked.

More carefully referring to accompanying drawing, earlier referring to Fig. 1, the present invention promptly embodies shown in the figure in order in the duplex connector system 10 that two single single worker's joints of optical fibre 12 are combined side by side.Each joints of optical fibre has a housing 14, and optical cable 16 is promptly from housing rear side 18 terminations.As in the art known, each bar optical cable 16 has a sheath that the glass core 20 at center is wrapped.As we can see from the figure, optical cable 16 stops at sleeve pipe 22 places, and this sleeve pipe 22 protrudes a little from connector shell 14 front ends 24.Know all that in the art these sleeve pipes can be made with stupalith.

Referring to Figure 1A, each housing of each connector 12 14 is made up of two parts: metal shell plug-in part 14a (Figure 1A) and plastic casing shell 14b (Fig. 1) in conjunction with Fig. 1.Optical cable 16 ends at the sleeve pipe 22 that is arranged in metal shell plug-in unit 14a, and sleeve pipe 22 protrudes forward from the metal shell plug-in unit.

Above-mentioned single worker's joints of optical fibre 12 and optical cable 16 are quite general.In addition, most of joints of optical fibre all have stress elimination overcoat to be connected with the metal shell plug-in part 14a of connector and protrude from the rear end of housing shell 14b.Stress is eliminated overcoat optical cable is wrapped, and optical cable is not met with stresses.The present invention has utilized these outer casing components to constitute duplex connector of the present invention system 10.

More particularly, referring to Fig. 2～5, integral sleeve member 26 of the present invention comprises that first and second stress eliminate overcoat 28 optical cable 16 is wrapped in conjunction with Fig. 1 and Figure 1A.As seen from Figure 3, each overcoat 28 has a through hole 30, and corresponding optical cable promptly extends by through hole 30.The front end 32 of overcoat can insert among the shell body 14b, is contained on the metal shell plug-in part 14a.As we can see from the figure, assembly parts have four eyelets 34, are positioned at the front end 32 that each overcoat engages with the corresponding projection 35 in the housing plug-in part 14a outside, as shown in Figure 1A.Integral sleeve member 26 preferably is integrally molded as by plastic material, and like this, eyelet 34 just can be bonded with each other apace with the projection 35 on the metal shell plug-in part 14a outside.

Usually, the present invention has been equipped with an elastic component to connector system first and second stress elimination overcoat 28 has been interconnected, oriented between this two overcoat, thus connector 12 is fixing side by side, as shown in fig. 1.Specifically, elastic component is extended between the radially opposite peripheral part of two overcoats 28 by a pair of thin bar 36 each intervals one segment distance and constitutes.In other words, total cylindrical of two overcoats, what thin bar 36 was total tangentially extends between the top of two overcoats and bottom periphery part (promptly two overcoats radially both sides).The peripheral part of thin bar 36 and two overcoats is equipped with the cord face of protrusion, shown in 38, so that catch whole outer casing component 26, outer casing component is assembled to connector shell 14 and connects and take the duplex connector 10 that assembles apart.Fig. 2 and Fig. 5 show thin bar 36 and are aperture 40 isolated situations.Like this, make by plastic material, thereby the formation elastic component makes two overcoats can move along X and Y both direction by the time spent of doing of external force between two overcoats 28 owing to approach bar.Certainly, when integral sleeve member 26 remained static, two single worker's joints of optical fibre 12 kept state side by side, as shown in fig. 1.

Fig. 6～9 show the situation that duplex connector of the present invention system is better than prior art systems.Specifically, Fig. 6 and Fig. 8 show that single worker's joints of optical fibre 12 are orientated as shown in Figure 1, the situation when being connected to integral sleeve member 26.Fig. 7 and Fig. 9 show then that connector has changeed 90 degree with respect to the orientation of Fig. 6 and Fig. 8 and the situation that still is connected to integral sleeve member 26 side by side.The ability of this its angular orientation of change of the joints of optical fibre is formed the most systems that is clamped to the connector case external body in prior art by discrete adapter and is not had, because each face difference of case body 14b, the web member between two overcoats and the metal shell plug-in part 14a then can undirectional motion due to.System of the present invention has utilized these characteristics to form duplex system, and this can not accomplish in prior art.

Self-evident, under the situation that does not break away from spirit or principal feature, the present invention can implement by other concrete form.Therefore, that no matter example here and embodiment should be considered as character for example what and should not be considered as limitation of the present invention, the present invention is not limited to the details that this instructions provides.

Claims (9)

1. a duplex connector system (10), for with two single single worker's joints of optical fibre (12) with the usefulness that links together of side by side form basically, each joints of optical fibre terminates at optical cable (16) in the housing by its housing (14) rear side, described duplex connector system is characterised in that it comprises:

First and second stress are eliminated overcoat (28), can be bonded with each other with connector shell respectively and described optical cable (16) is encased at connector (12) housing (14) rear side; With

Elastic component (36) is eliminated orientation between the overcoat (28) at described first and second stress, this two overcoat is interconnected, thereby two overcoats can be fixed described connector (12) basically abreast.

2. duplex connector as claimed in claim 1 system is characterized in that, the elastic component (36) that described stress is eliminated overcoat (28) and described interconnection usefulness constitutes an integrated member (26).

3. duplex connector as claimed in claim 2 system is characterized in that described integrated member (26) is made by plastic material.

4. duplex connector as claimed in claim 1 system is characterized in that, described elastic component extends formation by a thin bar (36) between two overcoats (28).

5. duplex connector as claimed in claim 1 system, it is characterized in that, total cylindrical of described two overcoats (28), described elastic component then is made up of the thin bar (36) that a pair of each interval one segment distance tangentially extends between the radially opposite peripheral part of two overcoats (28).

6. duplexing connected system as claimed in claim 1 is characterized in that, the described housing (14) of each connector is made up of two parts; Metal shell plug-in part (14a) and plastic casing shell (4b), and described first and second stress are eliminated, and overcoat (28) is suitable to be bonded with each other with metal shell plug-in part (14a).

7. one kind through improved duplex connector system (10), this system is in order to couple together two single single worker's joints of optical fibre (12) in side by side mode basically, each joints of optical fibre terminates at optical cable (16) in the housing by its housing (14) rear side, it is characterized in that

The improvement of being carried out comprises following each side:

Integral sleeve member (26) and elastic component (36) have been equipped with, integral sleeve member (26) is eliminated overcoat part (28) by first and second stress and is formed, two stress are eliminated the overcoat part and can be bonded with each other with connector shell respectively at housing (14) rear side of connector (12) and described optical cable (16) be encased, elastic component (36) is eliminated orientation between the overcoat (28) at described first and second stress, this two overcoat is interconnected, fix thereby two overcoats can also be discharged described connector (12) basically.

8. duplex connector as claimed in claim 7 system is characterized in that, described elastic component is extended between described two overcoats parts (28) by a thin bar (36) and constitutes.

9. duplex connector as claimed in claim 7 system, it is characterized in that, total cylindrical of described overcoat part (28) tangentially extended between the radially opposite peripheral part of two overcoats part by the thin bar (36) of a pair of each interval one segment distance and to be constituted.