CN210119611U - Tail optical fiber fixing structure and AOC optical module - Google Patents

Abstract

The utility model discloses a tail optical fiber fixing structure and AOC optical module, the tail optical fiber fixing structure includes photoelectric conversion device, lock pin and buckle, the photoelectric conversion device is formed with the plant mouth; the insertion core is arranged at the tail part of the optical fiber and inserted in the insertion hole so as to enable optical signals to be transmitted in the optical fiber and the photoelectric conversion device; the buckle is arranged between the photoelectric conversion device and the inserting core and used for fixing the inserting core on the photoelectric conversion device. The buckle is additionally arranged at the joint of the ferrule and the photoelectric conversion device, so that the connection between the ferrule and the photoelectric conversion device can be clamped and fixed, and the optical fiber pigtail is not easy to loosen and fall off in the optical module.

Description

Tail optical fiber fixing structure and AOC optical module

Technical Field

The utility model relates to an optical fiber transmission equips the field, in particular to tail optical fiber fixed knot constructs and AOC optical module.

Background

The AOC is an abbreviation of Active Optical Cables, the AOC is called an Active Optical cable in Chinese, and an AOC Optical module is actually an Optical module with an Optical fiber pigtail. The AOC optical module is mainly characterized in that the optical module and the optical fiber are integrated and inseparable, the optical fiber pigtail is connected with the photoelectric conversion device in the optical module through the ferrule, but the connection between the ferrule and the photoelectric conversion device is loosened and easy to fall off, and the transmission of optical signals is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tail optical fiber fixed knot constructs and AOC optical module, aim at solving the fixed problem of being connected of optic fibre tail optical fiber and photoelectric conversion device.

In order to achieve the above object, the utility model provides a tail optical fiber fixing structure, include:

a photoelectric conversion device having an insertion port formed thereon;

the inserting core is arranged at the tail part of the optical fiber and inserted in the inserting port so as to enable optical signals to be transmitted in the optical fiber and the photoelectric conversion device; and the number of the first and second groups,

and the buckle is arranged between the photoelectric conversion device and the inserting core and used for fixing the inserting core on the photoelectric conversion device.

Optionally, the ferrule has a fixed end exposed outside the insertion port, a flange ring is convexly arranged on the outer side surface of the fixed end, and an annular limiting groove is arranged on the outer side surface of the flange ring;

the end of the buckle connected with the inserting core is clamped in the annular limiting groove.

Optionally, the buckle includes a buckle main board extending horizontally, a first clamping arm extending toward the ferrule is formed at one end of the buckle main board close to the flange ring in the length direction, and the first clamping arm is used for abutting against a side wall surface of the annular limiting groove facing away from one side of the photoelectric conversion device.

Optionally, the photoelectric conversion device includes an insertion column forming the insertion opening, and a limit convex ring is convexly arranged on an outer side surface of the insertion column;

and a second clamping arm extending towards the photoelectric conversion device is formed at one end, far away from the flange ring, of the buckle main board in the length direction, and the second clamping arm is used for abutting against the side wall surface of the limiting convex ring on one side back to the flange ring.

Optionally, a clamping space for clamping and fixing the photoelectric conversion device and the ferrule is formed between the first clamping arm, the second clamping arm and the buckle mainboard, and a clamping protrusion is formed by partially protruding the first clamping arm and/or the second clamping arm to the clamping space.

Optionally, two first clamping arms are arranged at intervals in the width direction of the buckle main board, a first abdicating space is formed between the two first clamping arms, and the first abdicating space is abdicating the fixed end; and/or the presence of a gas in the gas,

the second clamping arms are arranged in two, the second clamping arms are arranged along the width direction of the buckle main board at intervals, a second yielding space is formed between the second clamping arms, and the second yielding space is a yielding position of the inserting column.

Optionally, the photoelectric conversion device comprises an insertion post forming the insertion opening;

two ends of the main buckle plate in the width direction are respectively provided with two clamping arms, and a limiting space is formed between the two clamping arms and used for limiting and clamping the inserting column.

Optionally, the material of the buckle is a conductive material.

The utility model provides an AOC optical module, the AOC optical module includes tail optical fiber fixed knot structure, tail optical fiber fixed knot structure includes:

a photoelectric conversion device having an insertion port formed thereon;

the inserting core is arranged at the tail part of the optical fiber and inserted in the inserting port to transmit an optical signal from the optical fiber to the photoelectric conversion device; and the number of the first and second groups,

and the buckle is arranged between the photoelectric conversion device and the inserting core and used for fixing the inserting core on the photoelectric conversion device.

Optionally, the portable electronic device further comprises a base 200 and a cover plate 300, wherein the base 200 and the cover plate 300 are buckled with each other to form an accommodating cavity;

the base, the cover plate and the buckle are all made of conductive materials;

the tail optical fiber fixing structure is accommodated in the accommodating cavity, and the buckle is at least partially attached to and electrically connected with the accommodating cavity.

The technical scheme of the utility model among, through install the buckle additional at lock pin and photoelectric conversion device junction, can press from both sides tightly fixedly to lock pin and photoelectric conversion device's connection for optic fibre tail optical fiber is difficult for producing in the optical module not hard up and drops.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective exploded view of an embodiment of a tail fiber fixing structure according to the present invention;

FIG. 2 is a schematic perspective view of the buckle shown in FIG. 1;

fig. 3 is a schematic perspective view of the photoelectric conversion device of fig. 1;

FIG. 4 is a schematic perspective view of the ferrule of FIG. 1;

fig. 5 is a schematic perspective view of an embodiment of an AOC optical module including the pigtail fixing structure of fig. 1 according to the present invention;

fig. 6 is a schematic perspective exploded view of the AOC optical module in fig. 5.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if the present invention relates to a directional indication, the directional indication is only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The AOC is an abbreviation of Active Optical Cables, the AOC is called an Active Optical cable in Chinese, and an AOC Optical module is actually an Optical module with an Optical fiber pigtail. The AOC optical module is mainly characterized in that the optical module and the optical fiber are integrated and can not be separated, and the optical fiber pigtail is connected with a photoelectric conversion device in the module; however, the optical fiber pigtail is loose in the optical module, and is easy to fall off, thereby affecting the transmission of optical signals.

The utility model provides a AOC optical module, the AOC optical module includes tail optical fiber fixed knot structure, as long as include the AOC optical module of tail optical fiber fixed knot structure all is the utility model discloses a content, wherein, figure 1 to figure 5 do the utility model provides an AOC optical module's embodiment.

Referring to fig. 1, the tail fiber fixing structure 100 includes a photoelectric conversion device 1, a ferrule 2 and a buckle 4, the photoelectric conversion device 1 is formed with an insertion opening, the ferrule 2 is disposed at the tail of the optical fiber 3, the ferrule 2 is inserted into the insertion opening to transmit optical signals in the optical fiber 3 and the photoelectric conversion device 1, and the buckle 4 is disposed between the photoelectric conversion device 1 and the ferrule 2 to fix the ferrule 2 on the photoelectric conversion device 1.

The technical scheme of the utility model in, will optic fibre 3 passes through lock pin 2 inserts photoelectric conversion device 1 uses buckle 4 is fixed photoelectric conversion device 1 and lock pin 2's relative position makes photoelectric conversion device 1 with be connected between the lock pin 2 can not become flexible easily to produce and drop.

Referring to fig. 4, in order to facilitate the clip 4 to fix the ferrule 2, so that the ferrule 2 has a fixing end 22 exposed outside the insertion opening, it should be noted that the fixing end 22 may be slightly larger than the insertion portion of the ferrule 2, so as to ensure that the ferrule 2 is not damaged by excessive force when being inserted into the optical-to-electrical converter, a flange ring is convexly disposed on an outer side surface of the fixing end 22, and an annular limiting groove 21 is disposed on an outer side surface of the flange ring. Through will buckle 4 card is established in annular spacing groove 21, can be more easily with lock pin 2 is fixed on photoelectric conversion device 1, make whole buckle 4 the buckle effect is more firm.

Further, referring to fig. 2 and 4, in order to facilitate that the end of the buckle 4 connected with the ferrule 2 can be quickly clamped in the annular limiting groove 21, the buckle 4 includes a horizontally extending buckle main board 45, a first clamping arm 42 facing the ferrule 2 is formed at an end of the buckle main board 45 in the length direction close to the flange ring, for facilitating production and saving cost, the first clamping arm 42 and the buckle main board 45 are integrally disposed, the first clamping arm 42 abuts against a side wall surface of the annular limiting groove 21 facing away from the photoelectric conversion device 1, so that the first clamping arm can abut against an inner side wall surface of the annular limiting groove 21 close to the photoelectric conversion device 1, and also abut against a side wall surface of the flange ring forming the annular limiting groove 21 facing away from the photoelectric conversion device 1, in this embodiment, in the first mode, the ferrule 2 is abutted against the photoelectric conversion device 1. The first clamping arm 42 is clamped in the annular limiting groove 21, so that the structure of the buckle 4 is simpler, the installation is easy, and the first clamping arm 42 can be quickly clamped in the limiting groove 31.

In this embodiment, in order to facilitate the relative fixation between the optical-electrical conversion device 1 and the buckle 4, please refer to fig. 2 and fig. 3, the optical-electrical conversion device 1 includes an insertion column 11 forming the insertion opening, a limit protruding ring 12 is convexly disposed on an outer side surface of the insertion column 11, a second clamping arm 43 extending downward is formed at an end of the buckle main board 45 away from the flange ring in the length direction, the second clamping arm 43 is used for abutting against a side wall surface of the limit protruding ring 12 facing away from one side of the flange ring, the insertion opening is formed on the insertion column 11 to facilitate the arrangement of the limit protruding ring 12, and then the buckle 4 can be conveniently and quickly mounted on the limit protruding ring 21 by the arrangement of the second clamping arm 43 and the limit protruding ring 12, and the whole buckle 4 can be quickly mounted on the ferrule 2 and the optical-electrical conversion device 1 by matching with the first clamping arm 42, and makes the connection tighter.

Furthermore, in this embodiment, a clamping space for clamping and fixing the optical-to-electrical converter 1 and the ferrule 2 is formed between the first clamping arm 42, the second clamping arm 43 and the buckle motherboard 45, and the optical-to-electrical converter 1 and the ferrule 2 are disposed in the clamping space, so that the positions of the optical-to-electrical converter 1 and the ferrule 2 can be effectively limited, and the optical-to-electrical converter 1 and the ferrule 2 can be guaranteed to be fixed in a certain space.

It should be noted that the utility model discloses it is not limited first card is held the shape of arm 42, in this embodiment, first card is held arm 42 local to the card is held and is held protruding formation card protruding 41 in the space, through setting up card protruding 41, first card is held arm 42 and is inwards formed the elastic extrusion, makes lock pin 2 receives the orientation photoelectric conversion device 1's extruded power, makes lock pin 2 with photoelectric conversion device 1's connection is inseparabler.

Similarly, the present invention does not limit the shape of the second holding arm 43, the second holding arm 43 can also be partially oriented to form the convex holding portion 41 in the convex holding space.

Obviously, the above-mentioned related technical features of the shape of the first holding arm 42 and the shape of the second holding arm 43 may alternatively exist or simultaneously exist, and in this embodiment, only the shape of the first holding arm 42 is selected, so that a certain space is saved while the connection is made tight to the maximum extent.

Furthermore, in the present invention, the number of the first retaining arms 42 is not limited, and only one or two first retaining arms 42 may be provided, in this embodiment, two first retaining arms 42 are provided, and two first retaining arms 42 are provided at intervals along the width direction of the main board 5, it should be noted that the width direction of the buckle main board 45 is perpendicular to the length direction of the buckle main board 45, a first abdicating space is formed between the two first retaining arms 42, the size of the first abdicating space is matched with the fixed end 22, the first abdicating space is abdicating the fixed end 22, the first retaining arms 42 tightly abut against the side wall surface of the limiting groove 31 facing away from the side of the photoelectric conversion device 1, and by placing the fixed end 22 of the ferrule 2 in the first abdicating space, the ferrule 2 cannot easily shake, and the ferrule 2 is clamped in the first yielding space through the two first clamping arms 42 to generate a certain pressure, so that the connection between the ferrule 2 and the buckle 4 cannot easily fall off;

similarly, the number of the second retaining arms 43 is not limited, and may be only one, or may be two, two of the second retaining arms 43 are arranged at intervals in the width direction of the buckle main board 45, a second yielding space is formed between the second retaining walls 53, the insertion column 11 is arranged in the second yielding space, and the second retaining arms 43 abut against the side wall surface of the flange ring side, which is back to the limiting convex ring 12.

It should be noted that, in the related technical features of the number of the first holding arms 42 and the number of the second holding arms 43, they may be alternatively or simultaneously present, and when they are simultaneously present, the connection between the buckle 4 and the optical-to-electrical conversion device 1 and the connection between the buckle 4 and the ferrule 2 are more stable, so that both are not easy to fall off, and a better clamping effect is obtained.

The utility model discloses in, in order to guarantee photoelectric conversion device 1 with the junction of lock pin 2 after connecting can not produce and rock, buckle mainboard 5 is formed with two centre gripping arms 44 respectively along width direction, be formed with spacing space between two centre gripping arms 44, will it presss from both sides tightly to plant 11 spacing clamp of post in the spacing space, through two centre gripping arms 44 closely clip photoelectric conversion device 1 with lock pin 2 makes the junction can not produce relative motion for it is more reliable to connect, what need explain, buckle 4 is the sheet metal component, can adopt the direct one shot forming of stamping equipment, and is very convenient when installation and dismantlement.

In addition, buckle 4 material is electrically conductive material for through buckle 4 derives the lock pin 2 with the static that produces between the photoelectric conversion device 1, electrically conductive material can be iron, copper, stainless steel etc. material, through will buckle 4 sets up to electrically conductive material, can effectually with photoelectric conversion device 1 with the static that produces when lock pin 2 connects the work is drawn forth to outside buckle 4, makes photoelectric conversion device 1 with the transmission of lock pin 2 is more reliable.

The utility model also provides a AOC optical module 1000, including foretell tail optical fiber fixed knot structure 100. The AOC optical module 1000 includes all technical features of the pigtail fixing structure 100, and therefore, has technical effects brought by all the technical features, and is not described in detail herein.

Referring to fig. 5 and fig. 6, the AOC optical module 1000 further includes a base 200 and a cover plate 300, where the base 200 and the cover plate 300 are fastened to form an accommodating cavity, and the pigtail fixing structure 100 is placed in the accommodating cavity to form the complete AOC optical module 1000;

the module box comprises a base 200 and a cover plate 300 forming the accommodating cavity, the base 200 and the cover plate 300 are buckled with each other, so as to facilitate installation and maintenance of the pigtail fixing structure 100, in order to prevent influence of internal static electricity on optical signal transmission, the base 200, the cover plate 300 and the buckle 4 are all made of conductive materials, the pigtail fixing structure 100 is accommodated in the accommodating cavity, the buckle mainboard 45 is at least partially abutted against the base 200, at least one of the first clamping arm 42 and the second clamping arm 43 is abutted against the cover plate for electrical connection, the buckle 4 guides static electricity out through the base 200 and the cover plate 300, and static electricity generated inside the AOC optical module 1000 is guided to the base 200 and the cover plate 300 by the buckle 4 by setting the buckle 4, the base 200 and the cover plate 300 as conductive materials and partially abutting together, the effect of guiding the light out of the optical module 1000 is achieved without arranging additional internal conducting wires and the like, and the structure is simple, convenient and reliable.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation done by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims (10)

1. A pigtail fixing structure, comprising:

a photoelectric conversion device having an insertion port formed thereon;

the inserting core is arranged at the tail part of the optical fiber and inserted in the inserting port so as to enable optical signals to be transmitted in the optical fiber and the photoelectric conversion device; and the number of the first and second groups,

and the buckle is arranged between the photoelectric conversion device and the inserting core and used for fixing the inserting core on the photoelectric conversion device.

2. The pigtail fixing structure of claim 1, wherein the ferrule has a fixed end exposed outside the insertion port, a flange ring is convexly disposed on an outer side surface of the fixed end, and an annular limiting groove is disposed on an outer side surface of the flange ring;

the end of the buckle connected with the inserting core is clamped in the annular limiting groove.

3. The pigtail fixing structure of claim 2, wherein the latch comprises a horizontally extending latch main plate, and a first latch arm extending toward the ferrule is formed at an end of the latch main plate close to the flange ring in the length direction, and the first latch arm is configured to abut against a side wall surface of the annular limiting groove facing away from the photoelectric conversion device.

4. The pigtail fixing structure of claim 3, wherein the photoelectric conversion device comprises an insertion column forming the insertion opening, and a limiting convex ring is convexly arranged on the outer side surface of the insertion column;

a second clamping arm extending towards the photoelectric conversion device is formed at one end, far away from the flange ring, of the buckle main board in the length direction, and the second clamping arm is used for abutting against the side wall surface, back to one side of the flange ring, of the limiting convex ring.

5. The pigtail fixing structure of claim 4, wherein a holding space for holding and fixing the optical-electrical converter and the ferrule is formed between the first holding arm, the second holding arm and the buckle mainboard, and the first holding arm and/or the second holding arm partially protrudes toward the holding space to form a protruding portion.

6. The pigtail fixing structure of claim 4, wherein there are two first catching arms, two first catching arms are arranged at intervals along the width direction of the buckle mainboard, and a first abdicating space is formed between the two first catching arms, and the first abdicating space is arranged at the fixed end in an abdicating manner; and/or the presence of a gas in the gas,

the second clamping arms are arranged in two, the second clamping arms are arranged along the width direction of the buckle main board at intervals, a second yielding space is formed between the second clamping arms, and the second yielding space is a yielding position of the inserting column.

7. The pigtail fixing structure of claim 3, wherein the photoelectric conversion device comprises an insertion post forming the insertion opening;

two ends of the main buckle plate in the width direction are respectively provided with two clamping arms, and a limiting space is formed between the two clamping arms and used for limiting and clamping the inserting column.

8. The pigtail fastening structure of claim 1, wherein the latch is made of a conductive material.

9. An AOC optical module, comprising: the pigtail fixation structure of any of claims 1-8.

10. The AOC optical module of claim 9, further comprising a base 200 and a cover 300, wherein the base 200 and the cover 300 are fastened to each other to form a receiving cavity;

the base, the cover plate and the buckle are all made of conductive materials;

the tail optical fiber fixing structure is accommodated in the accommodating cavity, and the buckle is at least partially attached to and electrically connected with the accommodating cavity.

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