CN202102147U

CN202102147U - Tube body structure of single fiber bidirectional device

Info

Publication number: CN202102147U
Application number: CN2011201587895U
Authority: CN
Inventors: 童铮; 赵洁; 梁鹏; 米全林
Original assignee: Wuhan Telecommunication Devices Co Ltd
Current assignee: Wuhan Telecommunication Devices Co Ltd
Priority date: 2011-05-18
Filing date: 2011-05-18
Publication date: 2012-01-04
Anticipated expiration: 2021-05-18

Abstract

The utility model relates to a tube body structure of a single fiber bidirectional device, the tube body is finely processed by a powder metallurgy die casting machine, and a laser TO-CAN installation seat, a control and test device TO-CAN installation seat and a fiber ferrule installation seat are arranged at the left side, the middle part top end and the right side of the tube body respectively, and a cavity in the middle part of the tube body is equipped with a limiting groove for fixedly installing a 0 degree optical filter and a semicircular installing groove for fixedly installing a 45 degrees WDM splitter. The laser TO-CAN installation seat is equipped with a positioning column matching with the CASE pin direction of the laser TO-CAN. By the technical scheme of the utility model, the error uncontrollable and additional man-hour situations brought by needing artificial alignments to adjust the CASE pin direction of the laser TO-CAN during the manufacturing process of the conventional structure single fiber bidirectional device are avoided, the finished product ratio and work efficiency of associated links are improved substantially, installation requirements can be satisfied, thereby improving the production work efficiency of the whole single fiber bidirectional device substantially.

Description

The pipe structure of single fiber bi-directional device

Technical field

The utility model relates to optical communication and light field of sensing technologies, refers to a kind of pipe structure of single fiber bi-directional device particularly.

Background technology

At present at optical communication field; The single fiber bi-directional device is to be integrated by the hardware of laser instrument TO-CAN, detector TO-CAN, 45 ° of WDM light splitting pieces, 0 ° of optical filter, optical fiber contact pins and these materials of carrying to form, and has through an optical fiber and can launch the device that light signal also can receiving optical signals; In traditional single fiber bi-directional structure; As shown in Figure 1; Laser instrument TO-CAN (a) is combined together through ERW and the soldering and sealing sleeve (b) that 45 ° of WDM light splitting pieces (e) are housed, and metal sleeve (b) and square tube body (d) are again through being slidingly matched and being connected with laser spot welding then; Optical fiber contact pins (f) is coupled through optically coupled system and meets the demands up to the luminous power of exporting that is coupled, and is connected with square tube body (d) through laser spot welding again; The detector TO-CAN (c) that is built-in with 0 ° of optical filter (g) is combined together through ERW and soldering and sealing body (h); (h) and assembly (c) are through the optically coupled system coupling then; Or the response current waveforms amplitude that light produced that receives up to detector meets the demands; Be connected with square tube body (d) through laser spot welding at last, finally form whole single fiber bi-directional device.

The shortcoming of traditional structure single fiber bi-directional device is:

1. to be packaged into module because this single fiber bi-directional device is follow-up, so the whole relatively single fiber bi-directional device of the direction of the CASE pin on the laser instrument TO-CAN must be fixed; In traditional structure, the direction of this CASE pin needs two links to control again, and one is to carry out at laser instrument TO-CAN (a) and soldering and sealing sleeve (b) that the mode through manual-alignment positions in this link of ERW; Another be soldering and sealing sleeve (b) and square tube body (d) carry out in this link of laser spot welding mode rotary laser TO-CAN (a) through manual-alignment with soldering and sealing sleeve (b) thus assembly adjust the position of the CASE pin on the laser instrument TO-CAN; Manual-alignment needs the extra man-hour that takies; And error is bigger, and influences the quality of product.

2. 45 ° of WDM light splitting pieces (e) are installed on the soldering and sealing sleeve (b); Because 45 ° of WDM light splitting pieces are mounted on the soldering and sealing sleeve (b); And soldering and sealing sleeve (b) and square tube body (d) to be the CASE pin direction that needs rotation soldering and sealing sleeve (b) and then guarantee laser instrument TO-CAN before carrying out laser spot welding satisfy module can reflect the Gaussian beam that optical fiber contact pins transmits to detector TO-CAN its requirement and 45 ° of WDM light splitting pieces, and this mode is unfavorable for guaranteeing the reflecting surface of 45 ° of WDM light splitting pieces (e) and the relative position of detector TO-CAN primary optical axis.

3. detector TO-CAN (c) is owing to link together through resistance weldering mode with soldering and sealing body (h); And soldering and sealing body (h) is connected with square tube body (d) through laser spot welding, so the CASE pin on the detector TO-CAN of this traditional structure can't guarantee to insulate with square tube body (d).

4. 0 ° of optical filter (g) being built in detector TO-CAN (c) lining causes detector TO-CAN production work efficiency to reduce.

On the whole, traditional structure operation is various, and technique controlling difficulty is bigger, in order to solve above-mentioned shortcoming and to improve the production efficiency and the yield rate of single fiber bi-directional device, just needs a novel single fiber bi-directional device pipe structure of design.

The utility model content

In view of this; The fundamental purpose of the utility model is to provide a kind of novel pipe structure of single fiber bi-directional device; Through the present technique scheme; Three original parts are constituted, change as a whole fitting structure, and on the pairing position corresponding installation site and locating device are set at assembling laser instrument TO-CAN, detector TO-CAN, 45 ° of WDM light splitting pieces, 0 ° of optical filter, optical fiber contact pins; Not only effectively raise installation accuracy, also improved staff's packaging efficiency simultaneously greatly.

In order to achieve the above object; The technical scheme of the utility model is achieved in that a kind of pipe structure of single fiber bi-directional device; Body is formed by powder metallurgy die casting machine finishing; On the said body in body left side, upper end, body middle part and body right side be respectively arranged with laser instrument TO-CAN mount pad, detection device TO-CAN mount pad and optical fiber contact pins mount pad, in the cavity at body middle part, is provided with 45 ° of semicircle mounting grooves that the WDM light splitting piece is used of stopper slot and fixed installation that 0 ° of optical filter of fixed installation is used.

Be provided with the reference column that matches with the CASE pin direction of laser instrument TO-CAN in the said laser instrument TO-CAN mount pad.

The technique effect that the utility model reaches is following: a kind of pipe structure of single fiber bi-directional device, through the present technique scheme:

1. laser instrument TO-CAN can directly be inserted in the laser instrument TO-CAN mount pad; Joining perhaps with cunning, press-fit directly is inserted on the body through laser spot welding again; Save the ERW in the traditional structure single fiber bi-directional device fabrication processes like this, thereby can shorten man-hour, improved work efficiency.

2. the CASE pin of laser instrument TO-CAN can position through the reference column of the setting on the body; Limit laser device TO-CAN is around the rotating range of laser instrument primary optical axis; To need to have avoided in the traditional structure single fiber bi-directional device fabrication processes the artificial uncontrollable situation with additional workhours of error that the CASE pin direction of adjusting laser instrument TO-CAN brought, the yield rate and the work efficiency of the relevant link of lifting that will be bigger of aiming at like this.

3. 45 ° of WDM light splitting pieces and 0 ° of optical filter of being installed in the body are to position by semicircle mounting groove and stopper slot respectively; Directly stick on novel body inside by heat cure bi-component epoxide-resin glue; This utility model does not need 45 ° of WDM light splitting pieces of manual-alignment; Promptly can satisfy installation requirement, thereby improve the production work efficiency of whole single fiber bi-directional device greatly.

4. detector TO-CAN is arranged in the detection device TO-CAN mount pad on the body; Directly bonding through adhesion process with body, through the most directly benefit that adopts insulating gel technology to bring be exactly CASE pin and the whole single fiber bi-directional device outer case of detector TO-CAN be to insulate relatively.Another benefit be exactly detector TO-CAN in the process that is coupled through optically coupled system, can adjust and optical fiber contact pins between optical path distance, revise the influence that focal length variations is brought thereby reach.

Description of drawings

Fig. 1 is a single fiber bi-directional device wiring layout in the prior art.

Fig. 2 faces the sectional structure synoptic diagram for the utility model body.

Fig. 3 is the left TV structure synoptic diagram of Fig. 2.

Fig. 4 is the plan structure synoptic diagram of drawing.

Fig. 5 installs the sectional structure synoptic diagram behind the laser instrument for the utility model.

Fig. 6 is the left TV structure synoptic diagram of Fig. 2.

Fig. 7 installs the sectional structure synoptic diagram behind 45 ° of WDM light splitting pieces and the 0 ° of optical filter for the utility model.

Fig. 8 is the left TV structure synoptic diagram of Fig. 7.Fig. 9 installs for the utility model and faces contour structures examination intention behind the detector.

Figure 10 is the finished product structure examination intention of single fiber bi-directional device.

Among the figure: 1 laser instrument TO-CAN, 2 soldering and sealing sleeves, 3 detector TO-CAN, 4 square tube bodies, 545 ° of WDM light splitting pieces, 6 optical fiber contact pins, 70 ° of optical filters, 8 soldering and sealing bodys, 9 laser instrument TO-CAN mount pads, 10 bodys, 11 detector TO-CAN mount pads, 12 semicircle mounting grooves, 13 stopper slots, 14 optical fiber contact pins mount pads, 15 reference columns, 16 laser solder joints, 17 ultra-violet curing glue.

Embodiment

To combine accompanying drawing that specific embodiment in the utility model is done further explain below.

As shown in the figure; The pipe structure of the single fiber bi-directional device that the utility model relates to; Body 10 is formed by powder metallurgy die casting machine finishing; On the said body 10 in body 10 left sides, body 10 middle parts upper ends and body 10 right sides are respectively arranged with laser instrument TO-CAN mount pad 9, detection device TO-CAN mount pad 11 and optical fiber contact pins mount pad 14, in the cavity at body 10 middle parts, are provided with 45 ° of semicircle mounting grooves 12 that the WDM light splitting piece is used of stopper slot 13 and fixed installation that 0 ° of optical filter of fixed installation is used.

Be provided with the reference column 15 that matches with the CASE pin direction of laser instrument TO-CAN 1 in the said laser instrument TO-CAN mount pad 9.

Like Fig. 2-shown in Figure 4; In the pipe structure of the utility model single fiber bi-directional device, stopper slot 13, the optical fiber contact pins mount pad 14 of 12,0 ° of optical filter 7 of semicircle mounting groove of laser instrument TO-

CAN mount pad

9,11,45 ° of WDM light splitting pieces 5 of detector TO-CAN mount pad is set on body 10.

Said laser instrument TO-CAN can join perhaps through cunning, and press-fit directly is connected with body 10 through laser bonding.

The CASE pin of laser instrument TO-CAN 1 can position through reference column on the body 10 15 and the pilot hole that is positioned on the laser instrument TO-CAN 1, thereby guarantees under the prerequisite that does not need manual-alignment, to make the CASE pin direction of laser instrument TO-CAN 1 consistent.

Of Fig. 7 and Fig. 8; 45 ° of WDM light splitting pieces 5 and 0 ° of optical filter 7 can directly stick on body 1 inside through heat curing bi-component epoxide-resin glue, and to 0 ° of optical filter 7, volume is little; And frivolous characteristics; Be provided with stopper slot 13,, prevent excessive skew to guarantee in the engineering that optical filter is installed, better to control the installation site of optical filter; 45 ° of WDM light splitting pieces 5 have been designed semicircle mounting groove 12; When 45 ° of WDM light splitting pieces 5 are installed; The tweezers of 45 ° of WDM light splitting pieces 5 of clamping have bigger activity space and scope, can guarantee that 45 ° of WDM light splitting pieces of tweezers clamping better are placed to the precalculated position.

Like Fig. 9 and shown in Figure 10, said detector TO-CAN 3 can use ultra-violet curing glue 17 detector TO-CAN 3 to be fixed on the upper end at body 10 middle parts after finishing through the optically coupled system coupling.

The above is merely the preferred embodiment of the utility model, is not the protection domain that is used to limit the utility model.

Claims

1. the pipe structure of a single fiber bi-directional device; It is characterized in that; Body is formed by powder metallurgy die casting machine finishing; On the said body in body left side, upper end, body middle part and body right side be respectively arranged with laser instrument TO-CAN mount pad, detection device TO-CAN mount pad and optical fiber contact pins mount pad, in the cavity at body middle part, is provided with 45 ° of semicircle mounting grooves that the WDM light splitting piece is used of stopper slot and fixed installation that 0 ° of optical filter of fixed installation is used.

2. the pipe structure of single fiber bi-directional device according to claim 1 is characterized in that, is provided with the reference column that matches with the CASE pin direction of laser instrument TO-CAN in the said laser instrument TO-CAN mount pad.