CN104678500A - Optical fiber coupling connector component - Google Patents

Abstract

The invention relates to an optical fiber coupling connector assembly, which includes a bendable connector, a first optical fiber coupling connector and a second optical fiber coupling connector mated with each other. The first fiber coupling connector includes a first body and a plurality of first lenses. The first body includes a first optical surface and a first top surface connected vertically. A plurality of first lenses are located on the first optical surface. The second fiber coupling connector includes a second body and a plurality of second lenses. The second body includes a second optical surface and a second top surface vertically connected. A plurality of second lenses are located on the second optical surface. Both ends of the connecting piece are respectively connected to the first optical surface and the second optical surface. When the connecting piece is bent, the first top surface is attached to the second top surface. When the connecting piece is straightened, the first optical surface is opposite to the second optical surface, and the multiple first lenses are aligned with the multiple second lenses one by one.

Description

Fiber-Coupled Connector Assemblies

technical field

The present invention relates to a fiber optic coupling connector assembly.

Background technique

Currently, a fiber-coupled connector assembly generally includes a first fiber-coupled connector and a second fiber-coupled connector mated with each other. Each fiber-coupled connector includes a lens aligned with an optical fiber for optical coupling.

When in use, insert the pins on the first optical fiber coupling connector into the corresponding jacks on the second optical fiber coupling connector, and align the lens in the first optical fiber coupling connector with the lens in the second optical fiber coupling connector. standard for optical coupling. Among them, the coupling accuracy of the lens determines the optical signal transmission efficiency of the fiber coupling connector assembly. Insertion between the first optical fiber coupling connector and the second optical fiber coupling connector will cause wear and tear on the pins and sockets. The more the number of insertions, the greater the amount of wear. The lenses in the second fiber-optic coupling connector cannot be completely aligned, that is, the alignment of the two will deviate, which will reduce the coupling accuracy. In severe cases, the wear will change the original shape of the two fiber-optic coupling connectors, resulting in failure connection, thereby affecting the service life of the fiber-coupled connector assembly.

Contents of the invention

In view of this, it is necessary to provide an optical fiber coupling connector assembly capable of overcoming the above defects.

A fiber coupling connector assembly includes a first fiber coupling connector and a second fiber coupling connector mated with each other. The first fiber coupling connector includes a first body and a plurality of first lenses. The first body includes a first optical surface and a first top surface vertically connected. The plurality of first lenses are located on the first optical surface. The second fiber coupling connector includes a second body and a plurality of second lenses. The second body includes a second optical surface and a second top surface vertically connected. The plurality of second lenses are located on the second optical surface. The fiber-coupled connector assembly also includes a bendable connector. One end of the connector is connected to the first optical surface, and the other end is connected to the second optical surface. When the connecting piece is bent, the first top surface is attached to the second top surface. When the connecting piece is straightened, the first optical surface is opposite to the second optical surface and aligns the plurality of first lenses and the plurality of second lenses one by one.

The first optical fiber coupling connector and the second optical fiber coupling connector in the optical fiber coupling connector assembly provided by the present invention are connected by using the connector, and do not need to be aligned and connected through traditional jacks and posts, avoiding The coupling precision of the first lens in the first fiber optic coupling connector and the second lens in the second fiber coupling connector is reduced due to the wear and tear of the jack and the pins for many times, and avoiding the wear and tear of the jack and the pins again The shapes of the first optical fiber coupling connector and the second optical fiber coupling connector are changed by plugging, thereby prolonging the service life of the optical fiber coupling connector assembly.

Description of drawings

FIG. 1 is a schematic perspective view of an optical fiber coupling connector assembly provided by an embodiment of the present invention.

FIG. 2 is a schematic perspective view of another state of the optical fiber coupling connector assembly in FIG. 1 .

FIG. 3 is a schematic cross-sectional view of the fiber coupling connector assembly along line III-III in FIG. 1 .

Description of main component symbols

Fiber-Coupled Connector Assemblies 100 first fiber-coupled connector 200 first ontology 10 first lens 20 first conflict 30 first fiber 40 first light emitting surface 42 first top surface 12 first optical surface 14 first back 16 first bottom surface 18 first groove 120 first storage tank 122 Second fiber-coupled connector 300 second body 50 second lens 60 Second conflict 70 second fiber 80 second light emitting surface 82 second top surface 52 second optical surface 54 second back 56 second bottom surface 58 second groove 520 Second storage tank 522 connector 400 Depression 420 Connection 430

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in FIGS. 1-2 , the fiber coupling connector assembly 100 provided by the embodiment of the present invention includes a first fiber coupling connector 200 , a second fiber coupling connector 300 and two connectors 400 . The two connectors 400 are connected to the first optical fiber coupling connector 200 and the second optical fiber coupling connector 300 . The first optical fiber coupling connector 200 , the second optical fiber coupling connector 300 and the two connectors 400 are integrally manufactured by polyetherimide.

The first fiber coupling connector 200 includes a first body 10 , two first lenses 20 and two first resisting elements 30 . The first optical fiber coupling connector 200 is used for accommodating two first optical fibers 40 .

The first body 10 includes a first top surface 12 , a first optical surface 14 , a first back surface 16 and a first bottom surface 18 . The first optical surface 14 and the first back surface 16 are located on opposite sides of the first body 10 , and the first optical surface 14 is parallel to the first back surface 16 . The first top surface 12 and the first bottom surface 18 are located on opposite sides of the first body 10 , and the first top surface 12 is parallel to the first bottom surface 18 . Both the first optical surface 14 and the first back surface 16 are vertically connected to the first top surface 12 , and the first optical surface 14 and the first back surface 16 are also vertically connected to the first bottom surface 18 . A first groove 120 is defined on the first top surface 12 , and the first groove 120 runs through the first back surface 16 . Two first accommodating grooves 122 are disposed at the bottom of the first groove 120 . The two first receiving grooves 122 respectively accommodate the two first optical fibers 40 .

The two first lenses 20 are disposed on the first optical surface 14 . The two first lenses 20 correspond to the two first receiving grooves 122 one by one. In this embodiment, the two first lenses 20 are convex lenses.

The two first resisting elements 30 are located on two symmetrical sides of the first optical surface 14 . The two first resisting elements 30 are cube-shaped protrusions.

The two first optical fibers 40 are respectively accommodated in the two first receiving grooves 122 and aligned with the two first lenses 20 . In this embodiment, the focal point of each first lens 20 is located on the first light-emitting surface 42 of the corresponding first optical fiber 40 .

The second fiber coupling connector 300 includes a second body 50 , two second lenses 60 , and two second resisting elements 70 . The second optical fiber coupling connector 300 is used to receive two second optical fibers 80 .

The second body 50 includes a second top surface 52 , a second optical surface 54 , a second back surface 56 and a second bottom surface 58 . The second optical surface 54 and the second back surface 56 are located on opposite sides of the second body 50 , and the second optical surface 54 is parallel to the second back surface 56 . The second top surface 52 and the second bottom surface 58 are located on opposite sides of the second body 50 , and the second top surface 52 is parallel to the second bottom surface 58 . Both the second optical surface 54 and the second back surface 56 are vertically connected to the second top surface 52 , and the second optical surface 54 and the second back surface 56 are also vertically connected to the second bottom surface 58 . A second groove 520 is defined on the second top surface 52 , and the second groove 520 passes through the second back surface 56 . Two second receiving grooves 522 are disposed at the bottom of the second groove 520 . The two second receiving grooves 522 respectively accommodate the two second optical fibers 80 .

The two second lenses 60 are disposed on the second optical surface 54 . The two second lenses 60 correspond to the two second receiving grooves 522 one by one. In this embodiment, the two second lenses 60 are convex lenses.

The two second resisting elements 70 are located on two symmetrical sides of the second optical surface 54 . The two second resisting elements 70 are cube-shaped protrusions.

The two second optical fibers 80 are respectively accommodated in the two second receiving grooves 522 and aligned with the two second lenses 60 . In this embodiment, the focal point of each second lens 60 is located on the second light-emitting surface 82 of the corresponding second optical fiber 80 .

One end of each connector 400 is fixedly connected to the first optical surface 14 and is located at the junction of the first optical surface 14 and the first top surface 12, and the other end of each connector 400 is fixedly connected to the second optical surface 14. The optical surface 54 is located at the junction of the second optical surface 54 and the second top surface 52 . The connecting member 400 can be bent and straightened. As shown in FIG. 2 , when the connector 400 is in a bent state, the first top surface 12 is opposite to the second top surface 52 and fit together, that is, the first body 10 and the second body 50 are stacked together. . As shown in FIG. 1 , when the connector 400 is in a straightened state, the first optical surface 14 is opposite to the second optical surface 54 , and the two first lenses 20 are paired with the two second lenses 60 Accurate, that is, the optical axes of the two first lenses 20 and the two second lenses 60 coincide one by one, the first top surface 12 is flush with the second top surface 52, and the first bottom surface 18 is aligned with the second top surface 52. The two bottom surfaces 58 are flush. The two first resisting members 30 and the two second resisting members 70 interfere with each other to prevent the connecting member 400 from bending after being straightened to further ensure the light of the two first lenses 20 and the two second lenses 60 The axes coincide one by one. It can be understood that the number of the first resisting member 30 and the second resisting member 70 is not limited to two, and can also be one or more. Meanwhile, the number of the first resisting member 30 and the second resisting member 70 The specific shape is not limited to a cube, and can also be other shapes, as long as the position of the first optical fiber coupling connector 200 and the second optical fiber coupling connector 300 can be stabilized when the connector 400 is straightened to further ensure the first The optical axes of the first lens 20 and the second lens 60 can coincide one by one.

As shown in FIG. 3 , when the connector 400 is straightened, the connector is I-shaped, that is, the connector 400 includes a concave portion 420 and is located at both ends of the concave portion 420 and is respectively coupled to the first optical fiber. The two connecting parts 430 connected to the connector 200 and the second optical fiber coupling connector 300. The thickness of the concave portion 420 is smaller than the thickness of the connection portion 430 . In this embodiment, the recessed portion 420 and the connecting portion 430 are smoothly connected by rounded corners, so as to alleviate the problem of stress concentration.

It should be noted that although this embodiment discloses that two connectors 400 are used to connect the first optical fiber coupling connector 200 and the second optical fiber coupling connector 300, it can be understood that the first optical fiber coupling connector 200 and the second optical fiber coupling connector 300 can also be connected by a connecting piece or a plurality of connecting pieces, as long as the optical axis of the first lens 20 and the second lens 60 can be One-to-one correspondence can be overlapped. Meanwhile, the number of the first lens 20, the second lens 60, the first accommodating groove 122, the second accommodating groove 522, the first optical fiber 40 and the second optical fiber 80 is not limited to two, and also It can be multiple, the number of the first lens 20, the second lens 60, the first accommodating groove 122, the second accommodating groove 522, the first optical fiber 40 and the second optical fiber 80 corresponds one by one. Can.

In addition, in this embodiment, polyetherimide (Polyetherimide, PEI) is used to integrally form the first optical fiber coupling connector 200, the second optical fiber coupling connector 300, and the two connectors 400, because the polyetherimide The amine resin material has good toughness (extensibility) and strength, so that the connector 400 formed by the polyetherimide resin material can be bent and straightened repeatedly.

During operation, the light emitted from the first optical fiber 40 sequentially passes through the corresponding first lens 20 and the corresponding second lens 60 to be coupled into the corresponding second optical fiber 80 . Likewise, the light emitted from the second optical fiber 80 sequentially passes through the corresponding second lens 60 and the corresponding first lens 20 to be coupled into the corresponding first optical fiber 40 .

The first optical fiber coupling connector 200 and the second optical fiber coupling connector 300 in the optical fiber coupling connector assembly 100 provided by the embodiment of the present invention are connected by the connector 400 without using traditional pins and sockets. Alignment connection avoids the reduction of the coupling accuracy between the first lens 20 in the first optical fiber coupling connector 200 and the second lens 60 in the second optical fiber coupling connector 300 due to wear and tear of the socket and pins after multiple insertions, And avoid the change of the shape of the first optical fiber coupling connector 200 and the second optical fiber coupling connector 300 caused by re-inserting after the socket and the pin are worn out, thereby prolonging the service life of the optical fiber coupling connector assembly 100 .

Although the present invention has disclosed a specific embodiment, it is not intended to limit the present invention. Any person skilled in the art may make equivalent structure or step replacements without departing from the concept and scope of the present invention, or follow the present invention. The equivalent changes and modifications made in the protection scope of the invention patent shall still fall within the scope covered by this patent.

Claims (10)

1. An optical fiber coupling connector assembly, comprising a first optical fiber coupling connector and a second optical fiber coupling connector mated with each other, the first optical fiber coupling connector includes a first body and a plurality of first lenses, the first The body includes a vertically connected first optical surface and a first top surface, the plurality of first lenses are located on the first optical surface, the second optical fiber coupling connector includes a second body and a plurality of second lenses, the second The body includes a vertically connected second optical surface and a second top surface, and the plurality of second lenses are located on the second optical surface. The improvement is that the optical fiber coupling connector assembly further includes a bendable connector, and the connection One end of the connecting piece is connected to the first optical surface, and the other end is connected to the second optical surface. When the connecting piece is bent, the first top surface is attached to the second top surface. When the connecting piece is straightened, the The first optical surface is opposite to the second optical surface and aligns the plurality of first lenses and the plurality of second lenses one by one. 2 . The optical fiber coupling connector assembly as claimed in claim 1 , wherein the first optical fiber coupling connector, the second optical fiber coupling connector and the connector are integrally made of polyetherimide. 3 . 3. The optical fiber coupling connector assembly according to claim 1, wherein when the connector is straightened, the connector is I-shaped, and the connector includes a concave portion and connecting portions located at both ends of the concave portion , the concave part and the connecting part are smoothly connected by rounded corners. 4. The optical fiber coupling connector assembly according to claim 1, wherein the first optical fiber coupling connector includes a first abutting member disposed on the first optical surface, and the second optical fiber coupling connector includes a first resisting member disposed on the first optical surface. The second resisting member on the second optical surface, when the connecting member is straightened, the first optical face is opposite to the second optical face, and the first resisting member is in conflict with the second resisting member. 5. The optical fiber coupling connector assembly according to claim 4, wherein the first resisting member is a cube-shaped protrusion on the first optical surface, and the second resisting member is on the second optical surface Cube-shaped bumps on the top. 6. The optical fiber coupling connector assembly according to claim 1, wherein the first body comprises a first back surface, the first back surface and the first optical surface are located on opposite sides of the first body, Both the first back surface and the first optical surface are vertically connected to the first top surface, a first groove is opened on the first top surface, the first groove runs through the first back surface, and the first groove A plurality of first accommodating grooves which are aligned with the plurality of first lenses are provided at the bottom of the first accommodating groove, and the plurality of first accommodating grooves accommodate the first optical fibers. 7. The fiber coupling connector assembly as claimed in claim 6, wherein the first optical fiber has a first light-emitting surface, and the focal point of the first lens is located on the first light-emitting surface. 8. The optical fiber coupling connector assembly as claimed in claim 6, wherein the second body comprises a second back, and the second back and the second optical surface are located on opposite sides of the second body, Both the second back surface and the second optical surface are vertically connected to the second top surface, a second groove is opened on the second top surface, the second groove runs through the second back surface, and the second groove A plurality of second accommodating grooves aligned with the plurality of second lenses one by one are opened at the bottom of the bottom, and the plurality of second accommodating grooves accommodate the second optical fiber. 9. The fiber coupling connector assembly as claimed in claim 8, wherein the second optical fiber has a second light-emitting surface, and the focus of the second lens is located on the second light-emitting surface. 10. The optical fiber coupling connector assembly according to claim 1, wherein one end of the connector is located at the junction of the first optical surface and the first top surface, and the other end of the connector is located at the second The optical surface is in contact with the second top surface.