WO2018103508A1

WO2018103508A1 - Fiber optic adapter having shielding component

Info

Publication number: WO2018103508A1
Application number: PCT/CN2017/110834
Authority: WO
Inventors: 杨至诚; 陈裕楷
Original assignee: 普泰光电股份有限公司
Priority date: 2016-12-08
Filing date: 2017-11-14
Publication date: 2018-06-14
Also published as: CN108196341B; CN108196341A

Abstract

A fiber optic adapter comprises a main body (500), a first shielding component (910), a second shielding component (950), an inner housing (600), a first elastic component (700), and a second elastic component (800). The first elastic component (700) comprises a first base (730), a first driving part (710), and a first connection part (720). The first connection part (720) is connected to the first driving part (710) and the first base (730). The second elastic component (800) comprises a second base (830), a second driving part (810), and a second connection part (820). The second connection part (820) is connected to the second driving part (810) and the second base (830). The first shielding component (910) is attached to the first driving part (710) and moves with the first driving part (710). The second shielding component (950) is attached to the second driving part (810) and moves with the second driving part (810).

Description

Fiber optic adapter with shield

Technical field

The present invention relates to a fiber optic adapter, and more particularly to a fiber optic adapter having a shield.

Background technique

Since the optical fiber has the advantages of high frequency width and low loss, it has been widely used as a signal transmission medium in recent years. In order for the signal to be transmitted to a greater distance, a high power laser diode is born, thus greatly increasing the energy coupled to the fiber. However, when the above-mentioned high-intensity infrared beam is emitted from one end of the optical fiber, the human eye cannot judge the presence or absence of the light beam. If the operator's eyes are inadvertently exposed directly to the light beam, permanent visual damage is often caused.

Referring to FIG. 1, a known optical fiber adapter 100 has a body 110. The body 110 is provided with a chamber 120 surrounded by a plurality of side walls 160, which can respectively be connected to an optical fiber connector. 190 connections. The side wall 160 is provided with a notch 130. The notch 130 can be engaged with the protrusion 192 on the mating connector 190 to have a function of alignment. In addition, the outer side of the two opposite side walls 160 is provided with a recess 140 on which a snap-up elastic piece (not shown) can be mounted to assist the positioning of the adapter 100 when assembled and used. When the fiber optic connector 190 is inserted into the chamber 120 of the adapter 100, the high power beam emerging from the end face of the ferrule 196 via the pigtail 194 of the connector 190 will pass through the chamber at the other end of the adapter 100. 120, if there is no obstruction, it may be directly exposed to the eyes, causing damage to vision. Generally, the chamber 120 to which the connector 190 is not inserted is plugged with the plug 180 to prevent dust contamination and shield the light beam, and when the connector 190 is to be inserted, the plug 180 is removed. However, the plug 180 described above is liable to be lost, and during the removal process, the human eye may also be exposed to the light beam conducted by the connector 190.

Referring to FIG. 2, a fiber optic adapter 200 having a shielding and dustproof effect is provided. A cover 250 is disposed at an open end of the chamber 120, and one side thereof is pivotally connected to the body 110, and the cover 250 is covered by the elastic force of the torsion spring 260. The open end of the chamber 120 is sealed to prevent the light beam from being emitted. If the fiber optic connector 190 is to be inserted into the chamber 120, the cover 250 must be lifted before the connector 190 can be inserted. The adapter 200 with the cover 250 described above requires the body 110 to be machined to pivot the cover 250 thereto. Therefore, the manufacture of the adapter 200 is complicated and the cost is relatively high.

Referring to FIG. 3, a guard 300 for use in the optical fiber adapter 100 is provided with a cover 350 at the open end of the hollow cover 310. One side of the cover 350 is pivotally connected to the cover 310, and the elastic force of the torsion spring 360 is utilized. The cover 350 is shielded from the open end of the cover 310. The hollow cover 310 can be sleeved on the body 110 of the adapter 100 to The gap 130 and the opening of the chamber 120 are covered to prevent the emission of the light beam and to avoid dust contamination. However, if only the function of shielding and dustproof is required, the above-mentioned guard device 300 also has a complicated structure and a relatively high manufacturing cost.

In view of this, there is a need to propose a solution to solve the above problems.

Summary of the invention

It is an object of the present invention to provide a fiber optic adapter that shields the light beam emitted by the chamber, thereby preventing the beam from damaging the eye. Further, the optical fiber adapter of the present invention also has a dustproof effect.

To achieve the above object, the optical fiber adapter of the present invention comprises a body, a first shielding member, a second shielding member, an inner casing, a first elastic member and a second elastic member. The body has a longitudinal chamber defined by the first wall, the second wall, the third wall and the fourth wall, wherein the first wall is opposite to the third wall and is connected to the second wall and the fourth wall. The two longitudinal ends of the chamber have a first opening and a second opening, respectively, wherein the second opening is for insertion of the first fiber optic connector. The first elastic member is elastic and integrally formed, and includes a first base portion, a first driving portion, and a first connecting portion. The first base is disposed on a third wall of the body, the first entraining portion extending toward the first wall of the body. The first connecting portion is connected to the first driving portion and the first base portion, wherein the first driving portion is movable relative to the first base portion by the first connecting portion. The second elastic member is elastic and integrally formed, and includes a second base portion, a second driving portion, and a second connecting portion. The second base is disposed on the first wall of the body, and the second entraining portion extends toward the third wall of the body. The second connecting portion is connected to the second driving portion and the second base portion, wherein the second driving portion is movable relative to the second base portion by the second connecting portion. The inner casing has a longitudinal chamber defined by the fifth wall, the sixth wall, the seventh wall and the eighth wall, wherein the fifth wall is opposite to the seventh wall and is connected to the sixth wall and the eighth wall. The two longitudinal ends of the inner casing chamber have a third opening and a fourth opening, respectively, and the third opening is for insertion of the second fiber optic connector. The first shielding member is attached to the first driving portion, and the first shielding member is movable with the first driving portion. The second shielding member is attached to the second driving portion, and the second shielding member is movable with the second driving portion. The first fiber optic connector is capable of pressing the first shielding member adjacent to the first driving portion to the third wall, and the first fiber optic connector is further capable of pressing the second shielding member and the second entraining portion proximate the first wall. The first driving portion and the second driving portion can respectively remove the first shielding member and the second shielding member from the third wall and the first wall by elastic force.

The above and other objects, features, and advantages of the present invention will become more apparent from the embodiments of the invention.

DRAWINGS

Figure 1 is a perspective view of a known fiber optic adapter and fiber optic connector;

2 is a perspective view of a fiber optic adapter known to have a shielding and dustproof effect;

Figure 3 is a perspective view of a guard known for use in a fiber optic adapter;

4a is a perspective view of a known male MPO type optical fiber connector;

Figure 4b is a perspective view of a known female MPO type fiber optic connector;

Figure 5 is an exploded perspective view of the optical fiber adapter of the present invention;

6a to 6d are perspective views of the body of the optical fiber adapter of the present invention at different viewing angles;

Figure 6e is a cross-sectional view along line A-A of Figure 6a;

Figure 6f is a cross-sectional view along line B-B of Figure 6a;

Figure 6g is a front elevational view of the body of the fiber optic adapter of the present invention;

7a to 7d are perspective views of the inner casing of the optical fiber adapter of the present invention at different viewing angles;

8a and 8b are perspective views of the first elastic member of the optical fiber adapter of the present invention at different viewing angles;

Figure 8c is a side view of the first elastic member of the optical fiber adapter of the present invention;

9a to 9c are perspective views of the second elastic member of the optical fiber adapter of the present invention at different viewing angles;

Figure 9d is a side view of the second elastic member of the optical fiber adapter of the present invention;

10a and 10b are perspective views of the first shielding member of the optical fiber adapter of the present invention at different viewing angles;

11a and 11b are perspective views of the second shielding member of the optical fiber adapter of the present invention at different viewing angles;

Figure 12 shows how to assemble the fiber optic adapter of the present invention;

Figure 13 is a perspective view of the optical fiber adapter of the present invention;

Figure 14 is a cross-sectional view along line C-C of Figure 13;

Figure 15 shows the shielding principle of the first shielding member and the second shielding member of the optical fiber adapter of the present invention;

Figures 16 through 17 illustrate how the fiber optic adapter of the present invention can be used to interface two fiber optic connectors.

Description of the reference numerals

100 fiber optic adapter

110 ontology

120 room

130 gap

140 recess

160 side wall

170 groove

180 stopper

190 fiber optic connector

192 protrusion

194 pigtail

196 casing

200 fiber optic adapter

250 cover

260 torsion spring

300 guards

310 cover

350 cover

360 torsion spring

400a fiber optic connector

400b fiber optic connector

410 upper surface

412 protrusion

414 recess

420 end face

430 fiber

440 guide pin

450 guide hole

500 ontology

511 top wall

512 bottom wall

513 right wall

514 left wall

515 room

517 first opening

518 second opening

521 opening

522 opening

542 hook

550 blocking block

551 vertical section

552 horizontal

553 accommodation space

554 contact surface

558 gap

560 blocking block

561 vertical section

562 horizontal

563 accommodating space

564 contact surface

570 protrusion

572 contact surface

600 inner casing

611 top wall

612 bottom wall

613 right wall

614 left wall

615 room

617 third opening

618 fourth opening

621 meshing cantilever

622 meshing cantilever

631 meshing protrusion

632 engagement protrusion

641 groove

642 hook

651 gap

652 gap

700 first elastic piece

710 driving department

711 front

712 front

713 concave

720 connection

730 base

740 flaps

800 second elastic piece

810 driving department

811 front

812 front

813 concave

820 connection

830 base

840 flaps

910 first cover

920 shielding board

921 front

922 back

925 slot

926 recess

928 abutment protrusion

930 shaft

940 extension

943 bevel

950 second shield

960 shielding board

961 positive

962 back

965 through slot

966 recess

968 abutment protrusion

968a gap

970 shaft

980 extension

980a gap

983 slope.

detailed description

Referring to Figures 4a and 4b, there are shown a known male MPO type fiber optic connector 400a and a female MPO type fiber optic connector 400b, respectively. The upper surface 410 of the front section of the

optical fiber connectors

400a and 400b is formed with elongated protrusions 412, and the side surfaces of the front section are each formed with a recess 414. A plurality of optical fibers 430 are exposed on the end faces 420 of the front ends of the

optical fiber connectors

400a and 400b, wherein the end faces of the respective optical fibers 430 are flush with the end faces 420 of the

optical fiber connectors

400a and 400b. In addition, two guiding holes 450 are formed on the end surface 420 of the optical fiber connector 400b, and a pair of guiding pins 440 are protruded from the end surface 420 of the optical fiber connector 400a, and can be respectively inserted into the guiding holes 450.

Referring to FIG. 5, the optical fiber adapter with the shielding member of the present invention, for example, the MPO-type optical fiber adapter includes a body 500, an inner casing 600, a first elastic member 700, a second elastic member 800, a first shielding member 910, and The second shielding member 950.

Referring to FIGS. 6a to 6g, the body 500 included in the optical fiber adapter of the present invention is formed by plastic molding in an injection molding manner, and is substantially in the shape of a hollow rectangular parallelepiped. The body 500 has a top wall 511, a bottom wall 512, a right wall 513 and a left wall 514, wherein the top wall 511 is opposite to the bottom wall 512 and is connected to the right wall 513 and the left wall 514, the

walls

511, 512, 513, 514 And collectively define a longitudinal chamber 515 having two opposing first openings 517 and second openings 518 in the longitudinal direction. A square opening 521 is formed in the top wall 511 near the first opening 517, and a square opening 522 is formed in the bottom wall 512 near the first opening 517. In one embodiment, the

openings

521, 522 are through holes. Each of the right wall 513 and the left wall 514 is formed with a hook 542 that is oppositely disposed and extends toward the second opening 518. In one embodiment, the hooks 542 are integrally formed with the right wall 513 and the left wall 514, respectively. In addition, at least one blocking block 550 is formed on the top wall 511 near the second opening 518, and the blocking block 550 includes a vertical portion 551 extending perpendicularly from the top wall 511, and facing from the vertical portion 551 toward the first portion. The opening 517 is parallel to the horizontal portion 552 extending from the top wall 511, that is, the blocking block 550 has an L-shaped cross section, and therefore, the blocking block 550 is An accommodating space 553 is formed between the top wall 511, and the accommodating space 553 has an opening facing the first opening 517. The end of the horizontal portion 552 is formed with an inclined contact surface 554 that faces the top wall 511 and the first opening 517. In one embodiment, the present invention can include two barrier blocks 550, one of which is adjacent the right wall 513 and the other adjacent the left wall 514, and the two barrier blocks 550 can extend toward each other and are joined together. The connected vertical portion 551 is formed with a notch 558 having a width slightly larger than the width of the protrusion 412 on the

fiber connectors

400a, 400b of Figures 4a, 4b to allow the protrusion 412 to pass. Similarly, at least one blocking block 560 is formed on the bottom wall 512 near the second opening 518. The blocking block 560 includes a vertical portion 561 extending perpendicularly from the bottom wall 512, and from the vertical portion 561 toward the first opening 517. And the horizontal portion 562 extending parallel to the bottom wall 512, that is, the blocking block 560 has an L-shaped cross section. Therefore, the accommodating space 563 is formed between the blocking block 560 and the bottom wall 512, and the accommodating space is formed. The 563 has an opening facing the first opening 517. The end of the horizontal portion 562 is formed with an inclined contact surface 564 that faces the bottom wall 512 and the first opening 517. In one embodiment, the present invention can include two blocking blocks 560, one of which is adjacent to the right wall 513 and the other is adjacent to the left wall 514, and the vertical portions 561 of the two blocking blocks 560 can extend toward each other and are connected together. Further, protrusions 570 are formed on each of the right wall 513 and the left wall 514, and a contact surface 572 is formed on each of the protrusions 570, and the contact surface 572 faces the first opening 517.

Referring to FIGS. 7a to 7d, the inner casing 600 included in the optical fiber adapter of the present invention is formed by plastic molding in an injection molding manner, and has a substantially hollow square shape. The inner casing 600 has a top wall 611, a bottom wall 612, a right wall 613 and a left wall 614, wherein the top wall 611 is opposite to the bottom wall 612 and is connected to the right wall 613 and the left wall 614, the

walls

611, 612, 613, 614 and collectively define a longitudinal chamber 615 having two opposing third openings 617 and fourth openings 618 in the longitudinal direction. Each of the right wall 613 and the left wall 614 is formed with a hook 642 that is oppositely disposed and extends toward the third opening 617. A rectangular notch 651 is formed on the top wall 611, and a longitudinally engaging elastic cantilever 621 extends from the top wall 611 in the notch 651 toward the third opening 617. A rectangular indentation 652 is formed in the bottom wall 612, and a longitudinally extending resilient cantilever 622 extends from the bottom wall 612 in the notch 652 toward the third opening 617. Engaging

projections

631, 632 are formed on the outer side surfaces of the engaging

cantilevers

621, 622, respectively. A longitudinal recess 641 is formed in the top wall 611 in the chamber 615, wherein the width of the recess 641 is slightly larger than the width of the projection 412 on the

fiber optic connectors

400a, 400b of Figures 4a, 4b for receiving the fiber optic connector Protrusions 412 on 400a, 400b. In one embodiment, the bottom of the recess 641 is the inner side surface of the engaging cantilever 621.

Referring to FIGS. 8a to 8c, the first elastic member 700 included in the optical fiber adapter of the present invention has elasticity and is bent from a metal sheet. The first elastic member 700 includes a driving portion 710 , a connecting portion 720 , a base portion 730 , and two flaps 740 . The connecting portion 720 has a substantially L-shaped cross section, one end of which is connected to the base portion 730 and the other end of which is connected to the driving portion 710. The driving portion 710 has a curved shape and has a front surface 711 and a back surface 712, and the driving portion 710 extends from the connecting portion 720. A concave surface 713 is formed on the front surface 711 of the driving portion 710. The driving portion 710 is movable relative to the base portion 730. When the driving portion 710 is subjected to the thrust, the back surface 712 thereof is close to the base portion 730; and when the thrust is lost, the driving portion 710 is returned to the original position due to the elastic force of the connecting portion 720 and itself. The base portion 730 is substantially rectangular, wherein the connecting portion 720 extends from the front side of the base portion 730, and the two flaps 740 extend perpendicularly from the left and right sides of the base portion 730, respectively.

Referring to FIGS. 9a to 9d, the second elastic member 800 included in the optical fiber adapter of the present invention has elasticity and is bent from a metal piece. The second elastic member 800 includes a driving portion 810 , a connecting portion 820 , a base portion 830 , and two flaps 840 . The connecting portion 820 has a substantially L-shaped cross section, one end of which is connected to the base portion 830 and the other end of which is connected to the driving portion 810. The driving portion 810 has a curved shape and has a front surface 811 and a rear surface 812 extending from the connecting portion 820. A concave surface 813 is formed on the front surface 811 of the driving portion 810. The driving portion 810 is movable relative to the base portion 830. When the driving portion 810 is subjected to the thrust, the back surface 812 thereof is close to the base portion 830; and when the thrust is lost, the driving portion 810 is returned to the original position due to the elastic force of the connecting portion 820 and itself. The base portion 830 is substantially rectangular, wherein the connecting portion 820 extends from the front side of the base portion 830, and the two flaps 840 extend perpendicularly from the left and right sides of the base portion 830, respectively.

Referring to FIGS. 10a and 10b, the first shielding member 910 included in the optical fiber adapter of the present invention is formed by plastic molding in an injection molding manner. The shield 910 has a generally rectangular shield panel 920 having a front surface 921 and a back surface 922. A rotating shaft 930 is formed on the front side of the shielding plate 920, and an extending portion 940 is extended on the rear side of the shielding plate 920, and the extending portion 940 extends at an angle greater than 90 degrees and less than 180 degrees. A slope 943 is formed on the rear side of the extension portion 940. The shielding plate 920 is formed with a lateral through groove 925, and the lateral length of the through groove 925 is slightly larger than the width of the driving portion 710 of the first elastic member 700. A lateral wedge-shaped abutment protrusion 928 is formed on the front surface 921 of the shielding plate 920, and the abutting protrusion 928 is located between the through groove 925 and the extending portion 940. Further, a concave portion 926 is formed on the back surface 922 of the shielding plate 920, and the concave portion 926 extends continuously from the through groove 925 to the inclined surface 943 of the extending portion 940. The width of the recess 926 is slightly larger than the width of the driving portion 710 of the first elastic member 700, and the curved curvature of the bottom surface of the recess 926 matches the bending curvature of the driving portion 710.

Referring to FIGS. 11a and 11b, the second shielding member 950 included in the optical fiber adapter of the present invention is formed by plastic molding in an injection molding manner. The shield 950 has a generally rectangular shield panel 960 having a front side 961 and a back side 962. A rotating shaft 970 is formed on the front side of the shielding plate 960, and an extending portion 980 is extended on the rear side of the shielding plate 960, and the extending portion 980 extends at an angle greater than 90 degrees and less than 180 degrees. A slope 983 is formed on the rear side of the extension portion 980. The extension 980 has a notch 980a that divides the extension 980 into two portions, left and right. The width of the notch 980a is slightly larger than the fiber optic connector 400a of Figures 4a, 4b, The width of the protrusion 412 on the 400b is such that the protrusion 412 can pass. A lateral through groove 965 is formed in the shielding plate 960, and the lateral length of the through groove 965 is slightly larger than the width of the driving portion 810 of the second elastic member 800. A lateral wedge-shaped abutment protrusion 968 is formed on the front surface 961 of the shielding plate 960, and the abutting protrusion 968 is located between the through groove 965 and the extending portion 980. The abutment protrusion 968 has a notch 968a that divides the abutment protrusion 968 into two portions, left and right. The width of the notch 968a is slightly larger than the width of the protrusion 412 on the

fiber optic connectors

400a, 400b of Figures 4a, 4b to allow the protrusion 412 to pass. Further, a concave portion 966 is formed on the back surface 962 of the shielding plate 960, and the concave portion 966 extends continuously from the through groove 965 to the notch 968a. The width of the recess 966 is slightly larger than the width of the driving portion 810 of the second elastic member 800, and the curved curvature of the bottom surface of the recess 966 matches the curvature of the driving portion 810.

Referring to FIG. 12, when assembling the optical fiber adapter of the present invention, the first shielding member 910 and the second shielding member 950 are first combined with the first elastic member 700 and the second elastic member 800, respectively. The method of combining the first shielding member 910 and the first elastic member 700 is such that the back surface 922 of the shielding plate 920 of the first shielding member 910 faces the base portion 730 of the first elastic member 700, and the rotating shaft 930 of the first shielding member 910 is moved. The bend of the connecting portion 720 of the first elastic member 700 is near. Then, the driving portion 710 of the first elastic member 700 is passed through the through slot 925, and the front surface 711 of the driving portion 710 is attached to the bottom surface of the recess 926 of the shielding plate 920. The method of combining the second shielding member 950 and the second elastic member 800 is such that the back surface 962 of the shielding plate 960 of the second shielding member 950 faces the base portion 830 of the second elastic member 800, and the rotating shaft 970 of the second shielding member 950 is moved. The bend of the connecting portion 820 of the second elastic member 800 is near. Then, the driving portion 810 of the second elastic member 800 is passed through the through groove 965, and the front surface 811 of the driving portion 810 is attached to the bottom surface of the concave portion 966 of the shielding plate 960. At this time, the end of the driving portion 810 protrudes from the notch 980a beyond the extension portion 980.

The first shield 910 incorporating the first elastic member 700 is then placed into the body 500 from the first opening 517. The first shielding member 910 is placed in such a manner that the connecting portion 720 of the first elastic member 700 faces forward and faces the blocking block 560 to push the connecting portion 720 into the accommodating space 563. After the connecting portion 720 is pushed into the accommodating space 563, the base 730 of the first elastic member 700 is attached to the bottom wall 512 of the body 500, and the back surface 712 of the driving portion 710 faces the first opening 517. At this time, the front surface 921 of the shield plate 920 will face the second opening 518 of the body 500, and the slope 943 of the extension portion 940 will face the top wall 511. In addition, the two flaps 740 of the first elastic member 700 are respectively pressed against the right wall 513 and the left wall 514 of the body. After the first elastic member 700 is placed, the second shielding member 950 incorporating the second elastic member 800 is then placed into the body 500 from the first opening 517. The second shielding member 950 is placed in such a manner that the connecting portion 820 of the second elastic member 800 faces forward and faces the blocking block 550 to push the connecting portion 820 into the accommodating space 553. After the connecting portion 820 is pushed into the accommodating space 553, the base 830 of the second elastic member 800 is attached to the top wall 511 of the body 500, and the back surface 812 of the driving portion 810 faces the first opening 517. At this time, the front surface 961 of the shielding plate 960 will face the second opening 518 of the body 500, and the inclined surface 983 of the extending portion 980 will face the extension of the first shielding member 910. The slope 943 of the 940, and the end of the front surface 811 of the driving portion 810 is pressed against the extension 940 of the first shield 910. In addition, the two flaps 840 of the second elastic member 800 are respectively pressed against the right wall 513 and the left wall 514 of the body.

Finally, the inner casing 600 is placed into the body 500 from the first opening 517. The inner casing 600 is placed in such a manner that its hook 642 faces away from the second opening 518 of the body 500 and is inserted into the body 500 from the first opening 517. The inner casing 600 and the body 500 may be assembled in such a manner that the top wall 611 and the bottom wall 612 of the inner casing 600 directly face the top wall 511 and the bottom wall 512 of the body 500, respectively, or directly face the body 500, respectively. The bottom wall 512 and the top wall 511. 12 shows that after the inner casing 600 is placed in the body 500, the top wall 611 of the inner casing 600 directly faces the top wall 511 of the body 500, while the bottom wall 612 directly faces the bottom wall 512 of the body 500. During the pushing process of the inner casing 600, the engaging

projections

631, 632 slide on the top wall 511 and the bottom wall 512 of the body 500, respectively, and thus the engaging

cantilevers

621, 622 are bent. When the inner casing 600 continues to advance such that the engaging

projections

631, 632 are respectively plunged into the

openings

521, 522 of the top wall 511 and the bottom wall 512 of the body 500, the engaging

cantilevers

621, 622 will no longer be pressed and thus bounce. The assembly of the fiber optic adapter is completed at this point. At the same time, the bottom wall 612 of the inner casing 600 and the end of the top wall 611 are respectively pressed to the rear side of the base 730 of the first elastic member 700 and the rear side of the base 830 of the second elastic member 800, so that the connecting portions are respectively respectively 720 and 820 are further pushed into the

accommodating spaces

563 and 553. Figures 13 and 14 show the fiber optic adapter of the present invention after assembly.

Referring to FIG. 15, when the

optical fiber connector

400a or 400b is not inserted into the body 500 from the second opening 518, the driving

portions

710 and 810 of the

elastic members

700 and 800 are erected by elasticity, and simultaneously drive the first shielding member 910 and The second shielding member 950 stands up. If there is an optical fiber connector, for example, when the optical fiber connector 400a is inserted into the inner casing 600 from the third opening 617, the light beam emitted from the optical fiber 430 of the optical fiber connector 400a is blocked by the rising

shields

910, 950. Therefore, it is possible to prevent the light beam from being emitted from the second opening 518 of the body 500 and injuring the eye. In addition, the edges of the shielding

plates

920, 960 and the extending

portions

940, 980 of the shielding

members

910, 950 are attached to the contact faces 572 of the protrusions 570 on the right wall 513 of the body 500 and the left wall 514, thus preventing dust from being removed from the surface. The second opening 518 enters and contaminates the fiber optic connector 400a that has been inserted into the inner casing 600.

Referring to Figures 16 and 17, the fiber optic connector 400b is intended to be inserted into the body 500 from the second opening 518 such that the elongated protrusions 412 on the surface thereof pass through the notches 558 in the vertical portion 551. After the optical fiber connector 400b is inserted, the lower portion and the upper portion respectively touch the abutting

protrusions

928 and 968 of the first shielding member 910 and the second shielding member 950, and the two shielding

members

910 and 950 are thus rotated and pressed respectively. The driving

portions

710 and 810 of the

elastic members

700 and 800 are respectively swung toward the bottom wall 512 and the top wall 511. When the optical fiber connector 400b is continuously pushed in, the elongated protrusion 412 passes through the notch 980a in the middle of the protrusion 968 and the extension 980, and touches the driving portion 810. The last paragraph. The fiber optic connector 400b continues to compress the two

shield members

910, 950 during the advancement process, and the

shield members

910, 950 thus rotate to continuously press the driving

portions

710, 810 to gradually swing toward the bottom wall 512 and the top wall 511, respectively.

When the optical fiber connector 400b is pushed to the positioning, the guiding pins 440 of the optical fiber connector 400a are respectively inserted into the guiding holes 450 of the optical fiber connector 400b, and the hooks 542 of the body 500 are respectively hooked on the optical fiber connector 400b. Within the recess 414, the fibers 430 of the fiber optic connector 400b contact the fiber 430 of the fiber optic connector 400a, respectively, thus completing the mating of the two

fiber connectors

400a, 400b. When the

fiber connectors

400a, 400b are docked, the driving portion 710 and the first shielding member 910 are positioned between the bottom wall 512 and the fiber connector 400b, and the driving portion 810 and the second shielding member 950 are positioned at the top wall 511. Between the fiber optic connector 400b. When the optical fiber connector 400b is pulled out of the body 500, the driving

portions

710 and 810 are returned to the original position due to the return elastic force, and the shielding

members

910 and 950 are lifted up, thereby having the function of shielding.

According to the optical fiber adapter of the present invention, the engaging

projections

631, 632 on the inner casing 600 are respectively inserted into the

openings

521, 522 of the top wall 511 and the bottom wall 512 of the body 500, thereby preventing the inner casing 600 from being pulled out of the body. 500 outside. A recess 641 in the inner casing 600 is used to receive the projections 412 on the

fiber optic connectors

400a, 400b, thereby limiting the insertion of the

fiber optic connectors

400a, 400b into the inner casing 600 in only a predetermined orientation. In addition, the present invention may be selected such that the top wall 611 and the bottom wall 612 of the inner casing 600 directly face the top wall 511 and the bottom wall 512 of the body 500, respectively, or directly face the bottom wall of the body 500, respectively. 512 and the top wall 511, the polarity of the two

fiber connectors

400a and 400b can be selected. The

hooks

542, 642 on the body 500 and the inner casing 600 are used to hook into the recesses 414 on the

fiber optic connectors

400a, 400b.

Referring to FIGS. 16 and 17, when the

optical fiber connector

400a or 400b is to be inserted into the optical fiber adapter of the present invention, the

elastic members

700, 800 and the shielding

members

910, 950 need not be removed first, and the

optical fiber connectors

400a, 400b are directly connected. The second opening 518 is inserted into the body 500, and the shielding

members

910, 950 and the driving

portions

710, 810 are pressed against the bottom wall 512 or the top wall 511. If the

fiber connectors

400a, 400b are pulled out of the body 500, the driving

portions

710, 810 will return to the original position due to the return elastic force, and simultaneously drive the shielding

members

910, 950 back to the original position, and the shielding

members

910 and 950 have the shielding. Features.

According to the fiber optic adapter of the present invention, the

flaps

740, 840 of the

elastic members

700, 800 are pressed against the right wall 513 and the left wall 514 of the body, thereby preventing the

elastic members

700, 800 from moving laterally within the body 500. The inclined contact faces 564, 554 on the ends of the

horizontal portions

562, 552 of the body 500 can be in contact with the front faces 921, 961 of the

shield plates

920, 960, respectively, to limit the angle at which the

shields

910, 950 are turned toward the second opening 518. The present invention can be designed to press the abutment protrusion 968 on the second shielding member 950 when the

optical fiber connector

400a or 400b is inserted into the body 500 from the second opening 518, so that the shielding member 950 and the driving portion 810 are swung first to avoid Driving

parts

710, 810 The

shields

910, 950 interfere with each other when oscillating.

When the

openings

521, 522 in the body 500 are through holes, the elongated rods can be used to press the two

engaging cantilevers

621, 622 through the

openings

521, 522, so that the inner casing 600 and the shielding

members

910, 950 can be take out. The blocking blocks 550, 560 on the body 500 are respectively used to restrict the movement of the connecting

portions

820, 720 toward the second opening 518, and the

elastic members

700, 800 and the shielding

members

910, 950 can be prevented from being pulled out of the body 500 from the second opening 518.

Although the present invention is exemplified by an MPO type fiber optic adapter, those skilled in the art to which the present invention pertains will appreciate that the fiber optic adapter according to the present invention may still be other types of fiber optic adapters.

Although the present invention has been disclosed by the foregoing embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art to which the present invention pertains can be made variously without departing from the spirit and scope of the invention. Change and modify. The scope of the invention is therefore intended to be defined by the scope of the appended claims.

Claims

A fiber optic adapter for docking two fiber optic adapters, the fiber optic adapter comprising:

a body having a longitudinal chamber defined by the first wall, the second wall, the third wall and the fourth wall, wherein the first wall is opposite to the third wall and The fourth wall is connected, the longitudinal ends of the chamber respectively have a first opening and a second opening, and the second opening is inserted into the first optical fiber connector;

a first elastic member that is elastic and integrally formed, comprising:

a first base disposed on the third wall of the body;

a first entraining portion extending toward the first wall of the body;

a first connecting portion connected to the first driving portion and the first base portion, wherein the first driving portion is movable relative to the first base portion by the first connecting portion;

a second elastic member that is elastic and integrally formed, comprising:

a second base disposed on the first wall of the body;

a second driving portion extending toward the third wall of the body;

a second connecting portion connected to the second driving portion and the second base portion, wherein the second driving portion is movable relative to the second base portion by the second connecting portion;

An inner casing having a longitudinal chamber defined by the fifth wall, the sixth wall, the seventh wall and the eighth wall, wherein the fifth wall is opposite to the seventh wall, and the sixth The wall and the eighth wall are connected, the fifth wall faces the first wall, and the longitudinal ends of the inner casing chamber respectively have a third opening and a fourth opening, wherein the third opening is Inserting a second fiber optic connector;

a first shielding member attached to the first driving portion, the first shielding member being movable with the first driving portion;

a second shielding member attached to the second driving portion, wherein the second shielding member is movable along with the second driving portion;

Wherein the first optical fiber connector is capable of pressing the first shielding member and the first driving portion to be adjacent to the third wall, and the first optical fiber connector is further capable of pressing the second shielding member and the The second driving portion is adjacent to the first wall, and the first driving portion and the second driving portion can respectively elastically bring the first shielding member and the second shielding member away from the third wall The first wall.
The fiber optic adapter of claim 1 wherein said first resilient member further comprises:

a two-folded piece extending perpendicularly from the first base, the two flaps respectively pressing against the second wall and the On the fourth wall.
The fiber optic adapter of claim 1 wherein said first body further comprises:

Two protrusions respectively formed on the second wall and the fourth wall, each of the protrusions being formed with a contact surface facing the first opening, the two contact surfaces being used for the first shielding And contacting the second shielding member.
The fiber optic adapter of claim 1 wherein said first shield comprises:

The shielding plate has a front surface and a back surface opposite to the front surface, wherein the first driving portion is attached to the back surface.
The fiber optic adapter of claim 4, wherein the first shielding plate is formed with a through slot, the through slot is penetrated from the front surface to the back surface, and the first driving portion passes through the through slot.
The fiber optic adapter of claim 4, wherein an abutment protrusion is formed on a front surface of the shielding plate for contacting the first fiber optic connector.
The fiber optic adapter of claim 4 wherein said first shield further comprises:

An extension extending from the shielding panel at an angle greater than 90 degrees and less than 180 degrees, wherein the first entraining portion is further attached to the extension.
The fiber optic adapter of claim 7 wherein said first entraining portion is further adapted to contact said second shield.
The fiber optic adapter of claim 1 wherein said seventh wall is for compressing said first base and said fifth wall is for compressing said second base.
The optical fiber adapter according to claim 1, wherein the body is formed with an opening, and the inner casing further comprises:

Engaging the cantilever;

An engaging projection is formed on the engaging cantilever, and the engaging projection is trapped in the opening.
The optical fiber adapter according to claim 1, wherein two blocking blocks are formed on the body, respectively And a method for restricting movement of the first connecting portion and the second connecting portion toward the second opening.
The fiber optic adapter of claim 1 wherein said second shield comprises:

a shielding plate having a front surface and a back surface opposite to the front surface;

The abutting protrusion is disposed on a front surface of the shielding plate, wherein the abutting protrusion is formed with a notch for the protrusion on the first optical fiber connector to pass.
The fiber optic adapter of claim 12 wherein said second shield further comprises:

An extension extending from the shielding plate at an angle greater than 90 degrees and less than 180 degrees, wherein the extension portion is formed with another notch for the protrusion on the first optical fiber connector to pass .
The fiber optic adapter of claim 13 wherein said second entrainment portion is attached to said extension.
The fiber optic adapter of claim 1, wherein the first elastic member is made of metal and the first shielding member is made of plastic.