TWM551701U - Optical fiber adapter with shutter member - Google Patents

Description

Fiber optic adapter with shield

This creation is related to a fiber optic adapter, and more particularly to a fiber optic adapter with a shield.

Since the optical fiber has the advantages of high frequency width and low loss, it has been widely used as a transmission medium for signals 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 , the conventional fiber optic connector 100 has a rectangular outer shape and includes a hollow and rectangular outer casing 110 having a top wall 111 , a bottom wall 112 , a right wall 113 , and a left The wall 114 has a right wall 113 opposite the left wall 114 and is connected to the top wall 111 and the bottom wall 112. In addition, a protrusion 130 is disposed on the top wall 111, and an engagement opening 118 is defined in each of the left wall 114 and the right wall 113. In addition, a hollow inner casing 150 is disposed in the outer casing 110, and the inner casing 150 can move back and forth through an opening 116 at the front end of the outer casing 110. A tail sleeve 180 is attached to the rear end of the inner casing 150. In addition, a ferrule 140 is located in the inner casing 150 and protrudes from an opening 156 at the front end of the inner casing 150 and an opening 116 at the front end of the outer casing 110. Also provided within the inner housing 150 is a spring (not shown) that allows the sleeve 140 to move back and forth through the openings 116, 156.

Referring to FIG. 2, the conventional fiber optic adapter 200 has a body 210. The body 210 is provided with a chamber 220 surrounded by a plurality of side walls 260, which can be respectively connected to the butted fiber optic connector 100. The side wall 260 is provided with a notch 230. The notch 230 can be engaged with the protrusion 130 on the butted fiber connector 100, and has a function of alignment. In addition, the outer side of the opposite side walls 260 is provided with a recess 240 on which a snap-up spring (not shown) can be mounted to assist in positioning the fiber optic adapter 200 when assembled and used.

When the fiber optic connector 100 is inserted into the chamber 220 of the fiber optic adapter 200, the high power beam emerging from the end face of the ferrule 140 is passed through the pigtail (not shown) on the tail end of the tail sleeve 180 of the fiber optic connector 100. The chamber 220 at the other end of the fiber optic adapter 200, if there is no obstruction of the shield, may directly illuminate the eye, causing damage to the vision. In general, the chamber 220, to which the fiber optic connector 100 is not inserted, is plugged with a plug 280 to prevent dust contamination and to obscure the beam; when the fiber optic connector 100 is to be inserted, the plug 280 is removed. However, the plug 280 described above is easily lost and dropped, and during the removal process, the human eye may also be exposed to the light beam conducted by the connector 100.

Referring to FIG. 3, a conventional fiber optic adapter 300 having a shielding and dustproof effect is provided with a cover 350 at the open end of the chamber. One side of the cover 350 is pivotally connected to the body 310, and the cover 350 is shielded from the open end of the body 310 by the elastic force of the torsion spring 360 to prevent the light beam from being emitted. If the fiber optic connector 100 is to be inserted into the chamber, the cover 350 must be lifted before the fiber optic connector 100 can be inserted. The fiber optic adapter 300 with the cover 350 described above must be machined with respect to the body 310 to pivot the cover 350 thereto. Therefore, the fabrication of the fiber optic adapter 300 is relatively complicated and the cost is relatively high.

Referring to FIG. 4, a conventional protective device 400 for the optical fiber adapter 200 is provided with a cover 450 disposed at the open end of the hollow cover 410. One side of the cover 450 is pivotally connected to the cover 410, and the cover 450 is shielded from the open end of the cover 410 by the elastic force of the torsion spring 460. The hollow cover 410 can be sleeved on the body 210 of the fiber optic adapter 200 to cover the notch 230 and the opening of the chamber 220 to prevent the emission of light beams and to avoid dust contamination. However, if only the function of shielding and dustproof is required, the above-mentioned protective device 400 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.

The purpose of this creation is to provide a fiber optic adapter that shields the light beam emitted by the chamber, thereby preventing the beam from damaging the eye.

To achieve the above object, the fiber optic adapter of the present invention comprises a body, an inner casing, a cover plate and a shielding member. The body has a longitudinal chamber defined by a first wall, a second wall, a third wall and a fourth wall, wherein the first wall is opposite to the third wall, and the second wall and the second The four walls are connected. The two longitudinal ends of the chamber respectively have a first opening and a second opening for insertion of a fiber optic connector. The inner casing is placed into the interior of the body by the access opening. The inner casing has a flange and a hollow cylinder, wherein the hollow cylinder system extends from the flange toward the first opening. The cover plate is for receiving the access opening on the first wall, wherein a window is formed between the cover plate and the first wall. The shielding member has elasticity and is formed by bending a metal piece. The shielding member comprises a shielding portion, a connecting portion, a base portion, two wing portions and a snap portion. The base is disposed on the first wall of the body, and the shield extends toward the third wall of the body and extends to the front of the hollow cylinder of the inner casing. The connecting portion is connected to the base portion and the shielding portion, wherein the shielding portion is movable relative to the base portion by the connecting portion. The snap portion extends from the base and sinks into the window formed between the cover and the first wall.

According to the fiber optic adapter of the present invention, the body further comprises two restriction blocks disposed on the first wall. A horizontal portion extends from each of the restricting blocks, and a gap is formed between each of the horizontal portions and the first wall. The shielding member further comprises two wings extending from the base, and the two wings extend into the two gaps respectively.

According to the fiber optic adapter of the present invention, the first wall of the body is further formed with two stoppers for restricting the movement of the two wings toward the inner casing.

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the present invention will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 5, the present invention has a shielded fiber optic adapter, such as an SC-type fiber optic adapter, comprising a body 500, two inner casings 600, a cover plate 700, and a shield member 800.

Referring to FIGS. 6a to 6f, the body 500 included in the fiber optic 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. 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 together define a longitudinal chamber 515 having two opposing first openings 517 and second openings 518 in the longitudinal direction. In the present creation, the longitudinal direction refers to a linear direction parallel to the top wall 511, the bottom wall 512, the right wall 513, and the left wall 514, and the lateral direction refers to the top wall 511 and the bottom wall 512 but perpendicular to the right wall 513 and left. The wall 514 is in a straight line direction, and thus the lateral direction is perpendicular to the longitudinal direction. A rectangular access opening 550 is defined in the top wall 511 to allow the inner casing 600 of FIG. 5 to be placed into the chamber 515. Two lateral limiting walls 560 are formed in the bottom wall 512 in the chamber 515, and the two limiting walls 560 extend from the right wall 513 to the left wall 514. Two restriction blocks 520 are formed on the top wall 511 near the first opening 517. The two restriction blocks 520 are oppositely disposed, and are respectively adjacent to the right wall 513 and the left wall 514. The two facing sides of the two limiting blocks 520 are respectively formed with a horizontal portion 521 which is disposed parallel to the top wall 511 and extends toward each other. The horizontal portion 521 thus forms a gap 522 with the top wall 511. . In addition, two stops 530 are formed on the top wall 511 between the two limiting blocks 520. The two stops 530 are oppositely disposed and are respectively adjacent to the two limiting blocks 520.

Referring to Figures 7a and 7b, the inner casing 600 included in the fiber optic adapter of the present invention is formed by plastic molding in an injection molding manner. The inner casings 600 are identical in shape and size. Each inner casing 600 includes a substantially rectangular flange 610 having a front surface 611 and a rear surface 612. A pair of hooks 620 and a cylindrical hollow cylinder 630 longitudinally disposed between the hooks 620 extend from the front surface 611 of each flange 610. The front and rear ends of the hollow cylinder 630 each have an opening 631, 632, wherein the rear end opening 632 is formed on the flange 610.

Referring to FIG. 8, the cover 700 of the fiber adapter of the present invention is formed by plastic molding in an injection molding manner, and has a substantially rectangular shape including two opposite longitudinal sides 721 and two opposite lateral sides. 722, wherein a lateral side 722 is formed with a notch 730. The inner surface of the cover plate 700 is formed with at least two longitudinal engaging portions 710 and two lateral restricting walls 760, wherein the two restricting walls 760 are positioned to correspond to the two restricting walls 560 on the body 500, respectively.

Referring to FIGS. 9a to 9c, the optical fiber adapter of the present invention includes a shielding member 800 which is elastic and bent from a piece of metal. The shielding member 800 includes a shielding portion 810, a connecting portion 820, a base portion 830, two wing portions 840, and a latching portion 850. The connecting portion 820 has a substantially C-shaped cross section, one side of which is connected to the front side of the base 830. The shielding portion 810 has a substantially uniform width and has a front surface 811 and a rear surface 812 extending from the connecting portion 820 at an angle greater than 90 degrees. The shield 810 is movable relative to the base 830. When the shielding portion 810 receives a thrust, the back surface 812 will be close to the base portion 830; when the thrust disappears, the shielding portion 810 will return to the original position due to the elastic force of the connecting portion 820 and itself. The base portion 830 has a flat shape in which the engaging portion 850 extends vertically downward from the rear side of the base portion 830. The two wings 840 extend horizontally from both sides of the base 830, respectively.

Referring to FIG. 10, when assembling the fiber adapter of the present invention, the two inner casings 600 are assembled first. The inner casing 600 is assembled by fitting the back surfaces 612 of the flanges 610 of the two inner casings 600 to each other and aligning the rear end openings 632 of the hollow cylinders 630 with each other. At this time, the central axes of the two hollow cylinders 630 are Bit on the same line. The assembled inner casing 600 is then placed into the chamber 515 from the access opening 550 on the body 500, and the lower sides of the flanges 610 of the inner casings 600 are inserted into the spaces between the two limiting walls 560. Next, the cover plate 700 is pressed down toward the access opening 550, and the engaging portions 710 on the cover plate 700 are respectively engaged with the upper wall 513 of the body 500 and the upper portion of the left wall 514, and the inner casings 600 are flanged 610. The upper side is inserted into the gap between the two limiting walls 760 on the cover 700, at which time the recess 730 in the cover 700 forms a window between the cover 700 and the top wall 511.

Finally, the shielding member 800 is pushed into the chamber 515 from the first opening 517 of the body 500 with the engaging portion 850 facing forward, and the wings 840 of the shielding member 800 are respectively inserted into the two gaps 522. Because the shielding member 800 has elasticity, during the pushing in, the engaging portion 850 of the shielding member 800 slides on the top wall 511 of the body 500, and the two wings 840 gradually approach the two blocking members 530, respectively. When the engaging portion 850 is caught in the window formed between the cover 700 and the top wall 511, the base 830 of the shielding member 800 will be attached to the top wall 511 of the body 500, and the back surface 812 of the shielding portion 810 will face the vicinity. The front end opening 631 of the hollow cylinder 630 of the inner casing 600. Figures 11 and 12 show the fiber optic adapter after the creation of this creation.

Referring to FIG. 13, when the optical fiber connector is not inserted into the body 500 from the first opening 517, the shielding portion 810 of the shielding member 800 is raised to face the front end opening 631 of the hollow cylinder 630 adjacent to the inner casing 600. If there is a fiber optic connector, for example, when a fiber optic connector 100 is fully inserted into the housing 515 of the body 500 from the second opening 518, the beam emerging from the end face of the sleeve 140 of the fiber optic connector 100 will eventually emerge from the opposite housing. The front end opening 631 of the hollow cylinder 630 of 600 is emitted, but is blocked by the rising shielding portion 810, so that the beam can be prevented from injuring the eye.

Referring to FIGS. 14 and 15, when the other optical fiber connector 100 is to be inserted into the body 500 from the first opening 517, the optical connector 100 can be directly inserted without removing the shielding member 800. It will be squeezed into the gap between the fiber optic connector 100 and the top wall 511 of the body 500. When the fiber connector 100 on the left side is pushed to the position, the end surface of the sleeve 140 will be in contact with the end surface of the sleeve 140 of the right fiber connector 100, thereby achieving the purpose of docking the two fiber connectors 100. If the left optical fiber connector 100 is pulled out of the main body 500, the shielding portion 810 will return to the original position due to the elastic force of the connecting portion 820 and its own, and has the function of blocking the light beam.

According to the fiber optic adapter of the present invention, since the edges of the wings 840 of the shield member 800 are respectively located between the two horizontal portions 521 and the top wall 511, the shield member 800 can be prevented from being pulled away from the top wall 511. The two stops 530 disposed on the top wall 511 are capable of preventing the two wings 840 from being pushed further toward the inner casing 600, respectively. In addition, since the engaging portion 850 is seated in the gap formed between the cover 700 and the top wall 511, the shield 800 can be prevented from being pulled out of the body 500 from the first opening 517.

Although the present invention is exemplified by an SC-type fiber optic adapter, those of ordinary skill in the art to which the present invention pertains should be aware that the fiber optic adapter according to the present invention may be other types of fiber optic adapters, such as LC-type fiber optic adapters.

Although the present invention has been disclosed in the foregoing embodiments, it is not intended to limit the present invention. Any person having ordinary knowledge in the technical field of the present invention can make various changes and modifications without departing from the spirit and scope of the present invention. . Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application attached.

100‧‧‧Fiber Optic Connectors
110‧‧‧ outer casing
111‧‧‧ top wall
112‧‧‧ bottom wall
113‧‧‧ right wall
114‧‧‧ left wall
116‧‧‧ openings
118‧‧‧Meshing opening
130‧‧‧ Protrusion
140‧‧‧ casing
150‧‧‧ inner casing
156‧‧‧ openings
180‧‧‧tail sets
200‧‧‧Fiber Adapter
210‧‧‧ body
220‧‧ ‧ room
230‧‧ ‧ gap
240‧‧‧ recess
260‧‧‧ side wall
280‧‧‧ stopper
300‧‧‧Fiber Adapter
310‧‧‧ Ontology
350‧‧‧ Cover
360‧‧‧Torque Spring
400‧‧‧Protection devices
410‧‧‧ Cover
450‧‧‧ Cover
460‧‧‧torsion spring
500‧‧‧ ontology
511‧‧‧ top wall
512‧‧‧ bottom wall
513‧‧‧ right wall
514‧‧‧ left wall
515‧‧ ‧ room
517‧‧‧ first opening
518‧‧‧ second opening
520‧‧‧Restriction block
521‧‧‧ horizontal department
522‧‧‧ gap
530‧‧ ‧block
550‧‧‧ access opening
560‧‧‧Restricted wall
600‧‧‧ inner casing
610‧‧‧Flange
611‧‧‧ positive
612‧‧‧ back
620‧‧‧ hook
630‧‧‧ hollow cylinder
631‧‧‧ openings
632‧‧‧ openings
700‧‧‧ cover
710‧‧‧Meshing Department
721‧‧‧ side
722‧‧‧ side
730‧‧‧ notch
760‧‧‧Restricted wall
800‧‧‧Shield
810‧‧ ‧Mask
811‧‧‧ positive
812‧‧‧Back
820‧‧‧Connecting Department
830‧‧‧ base
840‧‧‧ wing
850‧‧‧ card joint

1 is a perspective view of a conventional SC type fiber optic connector. 2 is a perspective view of a conventional fiber optic adapter and fiber optic connector. 3 is a perspective view of a conventional fiber optic adapter having a shielding and dustproof effect. 4 is a perspective view of a conventional protective device for a fiber optic adapter. Figure 5 is an exploded perspective view of the fiber optic adapter of the present invention. 6a to 6d are perspective views of the body of the fiber optic adapter of the present invention at different viewing angles. Figure 6e is a front elevational view of the body of the fiber optic adapter of the present invention. Figure 6f is a cross-sectional view along line A-A of Figure 6e. 7a and 7b are perspective views of the inner casing of the fiber optic adapter of the present invention at different viewing angles. Figure 8 is a perspective view of the cover of the fiber optic adapter of the present invention. 9a to 9c are perspective views of the shield of the fiber optic adapter of the present invention at different viewing angles. Figure 10 shows how to assemble the fiber optic adapter of this creation. Figure 11 is a perspective view of the fiber optic adapter of the present invention. Figure 12 is a cross-sectional view taken along line B-B of Figure 11; Figure 13 shows the masking principle of the shield of the fiber optic adapter of the present invention. Figures 14 through 15 illustrate how the fiber optic adapter of the present invention can be used to interface two fiber optic connectors.

500‧‧‧ ontology

511‧‧‧ top wall

512‧‧‧ bottom wall

513‧‧‧ right wall

515‧‧ ‧ room

517‧‧‧ first opening

518‧‧‧ second opening

521‧‧‧ horizontal department

522‧‧‧ gap

550‧‧‧ access opening

600‧‧‧ inner casing

610‧‧‧Flange

612‧‧‧ back

620‧‧‧ hook

630‧‧‧ hollow cylinder

631‧‧‧ openings

632‧‧‧ openings

700‧‧‧ cover

710‧‧‧Meshing Department

721‧‧‧ side

722‧‧‧ side

730‧‧‧ notch

800‧‧‧Shield

810‧‧ ‧Mask

811‧‧‧ positive

820‧‧‧Connecting Department

830‧‧‧ base

840‧‧‧ wing

850‧‧‧ card joint

Claims (5)

A fiber optic adapter for docking two fiber optic adapters, the fiber optic adapter comprising: a body having a longitudinal chamber, a first wall, a second wall, a third wall and a fourth wall Defining the formation, wherein the first wall is opposite to the third wall and is connected to the second wall and the fourth wall, the first wall is provided with an access opening, and the longitudinal ends of the chamber respectively have a first An opening and a second opening, wherein an optical fiber connector can be inserted into the housing from the first opening or the second opening; an inner casing is inserted into the housing of the body from the receiving opening, The housing includes a flange and a hollow cylinder, wherein the hollow column system extends from the flange toward the first opening; a cover plate covers the access opening on the first wall, wherein the cover Forming a window between the plate and the first wall; and a resilient and integrally formed shielding member is inserted into the housing of the body by the first opening, the shielding member comprising: a base disposed on the body a first wall; a shielding portion facing the body The wall extends and extends to the front of the hollow cylinder of the inner casing; a connecting portion is coupled to the base and the shielding portion, wherein the shielding portion is movable relative to the base by the connecting portion; A snap portion extends from the base and sinks into a window formed between the cover and the first wall. The fiber optic adapter of claim 1, wherein the body further comprises two limiting blocks disposed on the first wall, each of the limiting blocks extending a horizontal portion, each of the horizontal portions and the first portion A gap is formed between the walls, and the shielding member further includes two wings extending from the base, and the wings extend into the two gaps respectively. The optical fiber adapter of claim 2, wherein the first wall of the body is further formed with two stops for restricting movement of the two wings toward the inner casing. The fiber optic adapter of claim 1, wherein the shield is made of metal. The fiber optic adapter of claim 1, wherein the fiber optic adapter is an SC-type fiber optic adapter.