CN112799184A - Double-fiber bidirectional tail fiber type digital optical transceiver module - Google Patents

Abstract

The invention discloses a double-fiber bidirectional tail fiber type digital optical transceiver module which comprises a shell, a steel ladle needle connecting seat, an optical fiber inserting core and a tail fiber. Wherein, the casing front end is connected with the connector external member, and the optic fibre lock pin carries out coupled connection with the tail fiber through ladle needle connecting seat. The dual-fiber bidirectional tail fiber type digital optical transceiver module can be stably connected with an optical fiber connector socket in a three-key positioning and buckle connection mode, and the tail fiber is connected with the tail fiber through the steel ladle needle connecting seat at the tail end of the dual-fiber bidirectional tail fiber type digital optical transceiver module, so that the dual-fiber bidirectional tail fiber type digital optical transceiver module and other equipment can form an integrated module structure, the insertion loss is reduced, and the coupling rate is improved.

Description

Double-fiber bidirectional tail fiber type digital optical transceiver module

Technical Field

The invention relates to the technical field of optical fiber connectors, in particular to a double-fiber bidirectional tail fiber type digital optical transceiver module.

Background

Conventional fiber optic connectors are typically pigtailed and require connectorization by fiber optic jumpers when connected to other probing devices. Because fiber optic connector is connected at the fiber jumper both ends, when inserting the connection, can produce the grafting loss at both ends to fiber optic connector's coupling efficiency is lower, and fiber optic connector is because its optical interface such as traditional FC, LC when connecting, thereby leads to its connection stability relatively poor, and when adopting FC interface connection, produces the problem that the dead time is long easily.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a dual-fiber bidirectional pigtail type digital optical transceiver module, which can realize blind-mating stable connection with an optical fiber connector socket through triple-key positioning and snap-fit connection, and connect a pigtail at its tail end through a ladle pin connection socket, so that the dual-fiber bidirectional pigtail type digital optical transceiver module and other devices can form an integrated module structure, thereby reducing insertion loss and improving coupling rate.

In order to achieve the above object, an embodiment of the present invention provides a dual-fiber bidirectional pigtail type digital optical transceiver module, which includes a housing, a steel ladle pin connecting seat, an optical fiber ferrule and a pigtail, wherein the front end of the housing is connected to a connector kit, and the optical fiber ferrule and the pigtail are coupled and connected through the steel ladle pin connecting seat.

According to the double-fiber bidirectional tail fiber type digital optical transceiver module, the connector suite connected with the front end of the shell can realize stable connection with an external optical fiber connector socket, and the coupling rate of the optical fiber inserting core and the tail fiber is improved through the steel-clad needle connecting seat.

According to an embodiment of the present invention, the dual-fiber bidirectional pigtail type digital optical transceiver module further includes a positioning member, the positioning member includes three positioning holes, the optical fiber ferrule passes through the positioning member, and the positioning holes are disposed around the optical fiber ferrule.

According to one embodiment of the invention, the outer edge of the front end of the shell is provided with an external thread, the connector suite is provided with an internal thread, the connector suite is movably connected with the shell in a thread rotating mode, the outer end of the connector suite is provided with three rectangular clamping holes, and the angles among the rectangular clamping holes are 120 degrees.

According to an embodiment of the present invention, the dual-fiber bidirectional pigtail type digital optical transceiver module is connected to a fiber connector receptacle in a mating manner, the fiber connector receptacle is provided with three positioning keys, the outer end of the housing of the fiber connector receptacle is provided with three protruding keys, the protruding keys are elastic members, the protruding keys are arranged corresponding to the rectangular latching holes, when the dual-fiber bidirectional pigtail type digital optical transceiver module is plugged into the fiber connector receptacle, the dual-fiber bidirectional pigtail type digital optical transceiver module is connected to the positioning keys of the fiber connector receptacle in a blind-mating manner through the positioning holes, and after the dual-fiber bidirectional pigtail type digital optical transceiver module is connected to the fiber connector receptacle, the rectangular latching holes are connected to the protruding keys by rotating the connector kit.

According to one embodiment of the invention, the optical fiber ferrule comprises a first optical fiber ferrule and a second optical fiber ferrule, the pigtail comprises a first pigtail and a second pigtail, and the optical fiber ferrules are arranged in one-to-one correspondence with the pigtails.

According to one embodiment of the invention, the ladle needle connecting seat comprises a ladle needle connecting seat shell, a gasket and a plurality of insertion sleeves, wherein the gasket is concentrically and coaxially arranged with the ladle needle connecting seat, and a through hole is formed in the center of the gasket.

According to one embodiment of the invention, the upper end of the gasket is fixedly connected with the upper end of the steel ladle needle connecting seat shell, the lower end of the gasket is fixedly connected with the lower end of the steel ladle needle connecting seat shell, the plurality of plug bushes are respectively fixedly connected with the gasket, and a tail fiber groove and an optical fiber plug groove are arranged between the plurality of plug bushes.

According to an embodiment of the present invention, after the pigtail is inserted into the pigtail slot, the end surface of the pigtail is flush with the corresponding end surface of the plug bush, and after the fiber stub is inserted into the fiber stub slot, the end surface of the fiber stub is flush with the corresponding end surface of the plug bush.

According to one embodiment of the invention, the dimensions of the pigtail slot and the fiber core slot are smaller than the dimensions of the through hole provided in the center of the patch.

According to an embodiment of the present invention, the first pigtail and the second pigtail are multimode fibers, the first pigtail is used for transmitting signals, and the second pigtail is used for receiving signals.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a block diagram of a dual-fiber bidirectional pigtail type digital optical transceiver module according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a two-fiber bidirectional pigtail type digital optical transceiver module according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a dual-fiber bidirectional pigtail type digital optical transceiver module according to an embodiment of the invention;

FIG. 4 is a cross-sectional view of a fiber optic connector receptacle according to one embodiment of the present invention;

FIG. 5 is a block diagram of a ladle needle connecting seat according to one embodiment of the present invention;

fig. 6 is a schematic structural view of a ladle needle connecting seat according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following describes a two-fiber bidirectional pigtail type digital optical transceiver module according to an embodiment of the present invention with reference to the drawings.

Fig. 1 is a block diagram of a dual-fiber bidirectional pigtail type digital optical transceiver module according to an embodiment of the present invention. As described with reference to fig. 1, the dual-fiber bidirectional pigtail type digital optical transceiver module 100 includes a housing 10, a ladle pin connector 20, an optical fiber ferrule 30 and a pigtail 40, wherein the ladle pin connector 20 is fixedly connected to the housing 10. As shown in fig. 2, a connector kit 50 is connected to the front end of the housing 10, the fiber stub 30 and the pigtail 40 are coupled and connected through the ladle needle connecting seat 20, the fiber stub 30 is a standard ceramic stub, and the housing 10 is preferably made of an aluminum alloy passivation material.

It should be noted that the optical fiber ferrule 30 includes a first optical fiber ferrule and a second optical fiber ferrule, and the pigtail 40 includes a first pigtail and a second pigtail, where the optical fiber ferrules and the pigtails are arranged in a one-to-one correspondence, that is, the first pigtail is connected to the first optical fiber ferrule, and the second pigtail is connected to the second optical fiber ferrule. As shown in fig. 2, the first and second pigtails are led out of the pigtail through two routing holes 70 in a side-out manner.

In one embodiment of the present invention, the two-fiber bidirectional pigtail type digital optical transceiver module 100 further comprises a positioning member 60. As shown in fig. 3, the positioning member 60 includes three positioning holes 61, the fiber stub 30 is disposed through the positioning member 60, and the three positioning holes 61 are disposed around the fiber stub 30.

Preferably, as shown in fig. 2, the outer edge of the front end of the housing 10 is provided with an external thread, the connector assembly 50 is provided with an internal thread, the connector assembly 50 is movably connected with the housing 10 by means of thread rotation, and the outer end of the connector assembly 50 is provided with three rectangular clamping holes, wherein the angle between the rectangular clamping holes is 120 degrees.

Further, the dual-fiber bidirectional pigtail type digital optical transceiver module 100 is used for mating connection with an optical fiber connector socket. As shown in fig. 4, the optical fiber connector receptacle may have three positioning keys 62, and the outer end of the housing of the optical fiber connector receptacle has three protruding keys 63, wherein the protruding keys 63 are elastic members, and are disposed corresponding to the rectangular locking holes. When the dual-fiber bidirectional pigtail type digital optical transceiver module 100 is plugged with the optical fiber connector socket, the positioning hole 61 and the positioning key 62 of the optical fiber connector socket can be used for blind-mating the optical fiber ferrule 30 and the insertion hole 80 on the optical fiber connector socket, and after the connection, the rectangular clamping hole and the convex key 63 are connected in a buckling manner by rotating the connector kit 50.

It should be noted that, before the dual-fiber bidirectional pigtail type digital optical transceiver module 100 is plugged into the optical fiber connector receptacle, the protruding key 63 is in a natural bounce state, and when the dual-fiber bidirectional pigtail type digital optical transceiver module 100 is plugged into the optical fiber connector receptacle, the protruding key is pressed by a force, and then the connector kit 50 can be rotated to match the rectangular card hole with the protruding key 63. When the rectangular clamping hole corresponds to the convex key 63, the convex key 63 automatically bounces, so that the double-fiber bidirectional tail fiber type digital optical transceiver module 100 is connected with the optical fiber connector socket in a clamping mode.

In this embodiment, when the positioning hole corresponds to the positioning key, the connection between the dual-fiber bidirectional pigtail type digital optical transceiver module and the optical fiber connector socket can be realized, so that the blind plugging function can be realized, and when the dual-fiber bidirectional pigtail type digital optical transceiver module is plugged, the blind plugging can be quickly realized through the 120-degree design of the rectangular clamping hole, so that the plugging time is effectively reduced.

In one embodiment of the present invention, as shown in fig. 5, ladle needle coupling receptacle 20 may include a ladle needle coupling receptacle housing 21, a plurality of plug bushes 22 and a gasket 23. Wherein, the gasket 23 and the ladle needle connecting seat 20 are concentrically and coaxially arranged, and the center of the gasket 23 is provided with through holes 231 and 232.

Specifically, referring to fig. 6, the upper end of the lining 23 is fixedly connected with the upper end of the ladle needle connecting seat housing 21, the lower end of the lining 23 is fixedly connected with the lower end of the ladle needle connecting seat housing 21, the plurality of plug bushes 22 are respectively fixedly connected with the lining 23, and a pigtail slot and an optical fiber plug slot are formed between the plurality of plug bushes 22.

A pigtail slot 41 is formed between the splicing sleeve 221 and the splicing sleeve 223, a pigtail slot 42 is formed between the splicing sleeve 223 and the splicing sleeve 225, an optical fiber core slot 31 is formed between the splicing sleeve 222 and the splicing sleeve 224, and an optical fiber core slot 32 is formed between the splicing sleeve 224 and the splicing sleeve 226. And, the plug bush 221, the plug bush 223, and the plug bush 225 are inserted into the ladle needle connecting socket housing 21 in opposition to the plug bush 222, the plug bush 224, and the plug bush 226, respectively. The plug bush 221, the plug bush 223, the plug bush 225, the lining 23, the plug bush 222, the plug bush 224 and the plug bush 226 sequentially form plane contact, so that the axial distance between the pigtail 40 and the optical fiber plug core 30 can be effectively reduced, the optical coupling efficiency is higher, the signal transmission effect is better, and the abrasion of the end face of the optical fiber can be effectively avoided through the isolation of the lining 23.

In one embodiment of the present invention, the pigtails 40 are inserted into the pigtail slots such that the end surfaces of the pigtails 40 are flush with the corresponding end surfaces of the ferrule 22, and the fiber stub 30 is inserted into the fiber ferrule slots such that the end surfaces of the fiber stub 30 are flush with the corresponding end surfaces of the ferrule 22.

For example, a first pigtail is inserted into the pigtail slot 41 and is flush with the lower surface of the splicing sleeve 221 and the upper surface of the splicing sleeve 223, and a second pigtail is inserted into the pigtail slot 42 and is flush with the lower surface of the splicing sleeve 223 and the upper surface of the splicing sleeve 225.

In one embodiment of the invention, the dimensions of the pigtail slots and the fiber core slots are smaller than the dimensions of the through hole provided in the center of the patch 23. Specifically, the pigtail slot 41 is smaller than the through hole 231, and the pigtail slot 42 is smaller than the through hole 232, so that the end surfaces of the pigtail 40 and the optical fiber ferrule 30 are ensured not to contact with the gasket 23, and the abrasion phenomenon of the end surface of the optical fiber is further effectively avoided.

In addition, in the present embodiment, the outer edges of the through holes 231 and 232 are disposed in a mesh shape, so that the through area of the lining 23 can be increased, and the coupling efficiency between the pigtail 40 and the fiber stub 30 can be further improved.

It should be noted that, in the embodiment, the dual-fiber bidirectional pigtail type digital optical transceiver module adopts a dual-fiber design, the first pigtail and the second pigtail are multimode fibers for transmitting multimode signals, the first pigtail is used for transmitting signals, and the second pigtail is used for receiving signals, so that the dual-fiber bidirectional pigtail type digital optical transceiver module can have a function of transmitting and receiving signals integrally.

According to the double-fiber bidirectional tail fiber type digital optical transceiver module, the connector sleeve connected with the front end of the shell can realize the buckle type connection with an external optical fiber connector socket, the installation convenience is improved in a side outgoing mode, the coupling rate of the optical fiber inserting core and the tail fiber is improved through the steel ladle needle connecting seat, and the stability and the reliability of the double-fiber bidirectional tail fiber type digital optical transceiver module during connection are improved.

Furthermore, the tail fiber is connected behind the double-fiber bidirectional tail fiber type digital optical transceiver module, and the connection with other detection equipment can be realized in a tail fiber welding mode to form a module integrated structure, so that the insertion loss of connection with other equipment is reduced, and the stability and the reliability of connection are enhanced.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. The double-fiber bidirectional tail fiber type digital optical transceiver module comprises a shell, a steel ladle needle connecting seat, an optical fiber inserting core and a tail fiber, and is characterized in that the front end of the shell is connected with a connector suite, and the optical fiber inserting core and the tail fiber are in coupling connection through the steel ladle needle connecting seat.

2. The bi-directional fiber pigtail type digital optical transceiver module of claim 1 further comprising a positioning member, wherein the positioning member comprises three positioning holes, wherein the fiber stub is disposed through the positioning member, and the positioning holes are disposed around the fiber stub.

3. The two-fiber bidirectional pigtail type digital optical transceiver module of claim 2, wherein the outer edge of the front end of the housing is provided with external threads, the connector assembly is provided with internal threads, the connector assembly is movably connected with the housing in a threaded rotation manner, and the outer end of the connector assembly is provided with three rectangular clamping holes, wherein the angles between the rectangular clamping holes are 120 degrees.

4. The bi-directional fiber pigtail type digital optical transceiver module of claim 3, wherein the bi-directional fiber pigtail type digital optical transceiver module is connected to a fiber connector receptacle, the fiber connector receptacle has three positioning keys, the outer end of the housing of the fiber connector receptacle has three protruding keys, the protruding keys are elastic members, the protruding keys are disposed corresponding to the rectangular latching holes, when the bi-directional fiber pigtail type digital optical transceiver module is plugged into the fiber connector receptacle, the bi-directional fiber pigtail type digital optical transceiver module is connected to the positioning keys of the fiber connector receptacle through the positioning holes in a blind-plugging manner, and after the bi-directional fiber pigtail type digital optical transceiver module is connected to the fiber connector receptacle, the rectangular latching holes are connected to the protruding keys by rotating the connector assembly.

5. The two-fiber bidirectional pigtail type digital optical transceiver module of claim 1, wherein the fiber stub comprises a first fiber stub and a second fiber stub, the pigtail comprises a first pigtail and a second pigtail, and the fiber stubs are disposed in one-to-one correspondence with the pigtails.

6. The bi-directional pigtail type digital optical transceiver module of claim 1, wherein the steel ladle needle connecting base comprises a steel ladle needle connecting base housing, a gasket and a plurality of plug-in sleeves, the gasket is concentrically and coaxially arranged with the steel ladle needle connecting base, and a through hole is formed in the center of the gasket.

7. The two-fiber bidirectional pigtail type digital optical transceiver module of claim 6, wherein an upper end of the gasket is fixedly connected to an upper end of the steel ladle needle connecting seat housing, a lower end of the gasket is fixedly connected to a lower end of the steel ladle needle connecting seat housing, the plurality of splicing sleeves are respectively fixedly connected to the gasket, and pigtail grooves and optical fiber core insertion grooves are formed between the plurality of splicing sleeves.

8. The two-fiber bidirectional pigtail type digital optical transceiver module of claim 7, wherein after the pigtail is inserted into the pigtail slot, the end surface of the pigtail is flush with the corresponding end surface of the plug-in sleeve, and after the fiber stub is inserted into the fiber stub slot, the end surface of the fiber stub is flush with the corresponding end surface of the plug-in sleeve.

9. The two-fiber bidirectional pigtail-type digital optical transceiver module of claim 8, wherein the dimensions of the pigtail slot and the fiber core slot are smaller than the dimension of the through hole provided in the center of the patch.

10. The two-fiber bidirectional pigtail type digital optical transceiver module of claim 5 wherein the first pigtail and the second pigtail are multimode optical fibers, the first pigtail being configured to transmit signals and the second pigtail being configured to receive signals.

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