CN212846041U

CN212846041U - Integral inner shell MPO connector

Info

Publication number: CN212846041U
Application number: CN202021398044.1U
Authority: CN
Inventors: 金建峰; 余艳梅
Original assignee: Suzhou Guangzhuo Communication Technology Co ltd
Current assignee: Suzhou Guangzhuo Communication Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-03-30
Anticipated expiration: 2030-07-16

Abstract

The utility model relates to an optical fiber connector field, in particular to an integral inner shell MPO connector, which comprises an inner shell, a ferrule assembly, an outer shell and a tail sleeve, wherein the ferrule assembly is arranged at the front end of the inner cavity of the inner shell; the optical cable bushing is sleeved on the optical cable and arranged in the inner cavity of the inner shell cylinder; the inner shell include inner shell body and inner shell upper cover, inner shell body fretwork can assemble into the inner shell that has hollow cavity with the inner shell upper cover, the spring pushes away a and sets up in the inner chamber of inner shell with the optical cable bush, its advantage lies in: the inner shell is formed by combining the inner shell body and the inner shell upper cover, and compared with the split type design of a common MPO connector inner shell, the problem of failure of a connecting part is avoided due to the integrated inner shell structure.

Description

Integral inner shell MPO connector

Technical Field

The utility model relates to an optical fiber connector field is an integral type inner shell MPO connection particularly.

Background

The MPO connector is one of optical fiber connectors, an inner shell of a conventional MPO connector generally adopts a split design, the front section and the rear section of the MPO inner shell need to be assembled, and an optical cable is crimped on the rear section of the inner shell, so that the split design easily causes failure of a joint. To avoid the problems associated with the split design, the integral inner shell MPO connection began to emerge.

Such as the patent: an MPO connector and cable assembly, patent No.: 2019111671483 which includes a housing, a holder, and a crimp sleeve; the holding seat is fixed in the shell, and the rear end of the holding seat is provided with a crimping part which is sleeved and crimped and fixed at the front end of the crimping sleeve; the side wall of the shell is provided with a locking nail hole, a locking nail is connected with the internal thread of the locking nail hole, and the locking nail is used for being pressed against the side surface of the retaining seat or extending into a locking nail adapting hole arranged on the side surface of the retaining seat so as to fix the retaining seat into the shell; or: the MPO connector comprises a shell, a retaining seat and a MPO connector, wherein the side wall of the shell is provided with a lock pin through hole, the side face of the retaining seat is provided with a lock pin connecting hole, the MPO connector further comprises a lock pin, the lock pin penetrates into the lock pin through hole, and the front end of the lock pin is in threaded connection with the lock pin connecting hole so that the retaining seat is fixed in the shell. The interior casing formula design as an organic whole of this patent, but the interior casing of this patent is closed about from top to bottom, and it has the through-hole to open around only, and the lock pin subassembly is just difficult to dismantle after setting up in interior casing with the holding seat and overhauls.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve prior art not enough, provide an integral type inner shell MPO connector.

In order to achieve the purpose, the integrated inner shell MPO connector comprises an inner shell, a ferrule assembly, an outer shell and a tail sleeve, wherein the ferrule assembly is arranged at the front end of an inner cavity of the inner shell; the optical cable bushing is sleeved on the optical cable and arranged in the inner cavity of the inner shell cylinder; the inner shell comprises an inner shell body and an inner shell upper cover, the inner shell body is hollow, the inner shell with a hollow cavity can be assembled with the inner shell upper cover, and the spring pushing piece and the optical cable bushing are arranged in an inner cavity of the inner shell.

Preferably, the inner shell body is formed by cylinder structure and square body structure combination, and the top is opened, and inside fretwork, the inner shell body square body structure inner wall left and right sides are equipped with the draw-in groove, the inner shell upper cover bottom left and right sides be equipped with the buckle, with the draw-in groove joint. The inner shell body is formed by cylinder structure and square body structure combination, and the top is opened, and inside fretwork, the inner shell body square body structure inner wall left and right sides are equipped with the draw-in groove, the inner shell upper cover bottom left and right sides be equipped with the buckle, with the draw-in groove joint.

Preferably, the inner shell upper cover is formed by combining a square structure and an arc-shaped structure which are matched with the inner shell body, a rotating shaft is arranged at the junction, and the square structure can be bent upwards around the rotating shaft.

Preferably, the spring pushes away the piece left and right sides and is equipped with the lug, the inner shell body inner chamber left and right sides be equipped with the stopper, the stopper supports to lean on the lug that the spring pushed away the piece.

Preferably, the front end of the inner shell body is provided with a through hole, the front end of the ferrule assembly penetrates through the through hole of the inner shell body, and the rear end of the ferrule assembly is arranged in the inner cavity of the inner shell body.

Preferably, the spring pushing piece and the ferrule assembly are connected through a spring.

Preferably, the spring pushing piece is provided with a through hole in the front-back direction, the ferrule assembly is provided with a through hole in the front-back direction, and the optical fiber penetrates through the spring pushing piece and the spring and extends to the front end of the through hole of the ferrule assembly.

Compared with the prior art, the utility model, its advantage lies in:

1. the inner shell is formed by combining an inner shell body and an inner shell upper cover, is of an integrated inner shell structure, and compared with the split design of the common MPO connector inner shell, the problem of failure of a connecting part is avoided;

2. the inner shell is internally provided with a cylindrical cavity for placing an optical cable bushing which is lined at the periphery of the optical fiber, so that the inner optical fiber can be prevented from being stuck by glue during glue dispensing;

3. the whole structure is simple, the matching of the inner shell, the spring pushing piece and the inserting core assembly is completed only through a part structure, and no additional fastener is needed;

4. the connection of the rear section of the inner shell and the optical cable adopts a glue dispensing fixing mode, so that the problem of failure of a joint can be solved, and the adaptability of the connector to the thickness and the structure of the optical cable can be improved.

Drawings

FIG. 1 is an exploded view of the overall structure of the present invention;

FIG. 2 is a schematic view of the inner shell structure of the present invention;

FIG. 3 is a schematic structural view of the inner shell body of the present invention;

FIG. 4 is a schematic view of the spring pushing member of the present invention;

FIG. 5 is a schematic view of the inner shell of the present invention partially assembled;

FIG. 6 is a schematic view of the assembly of the inner and outer shells of the present invention;

FIG. 7 is a view showing a state of bending an upper cover of an inner shell according to the present invention;

in the figure: 1. the optical cable connector comprises an inner shell 2, a ferrule assembly 3, an outer shell 4, a tail sleeve 5, a spring pushing piece 6, an optical cable bushing 7, an optical cable 8, an inner shell body 9, an inner shell upper cover 10, a clamping groove 11, a clamping buckle 12, a convex block 13, a limiting block 14, a spring 15 and an optical fiber.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and the structure and principle of the present invention will be clear to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the utility model provides an integral type inner shell MPO connector, including tail cover, spring push away piece, optical cable bush, spring, inner shell upper cover, inner shell body, lock pin subassembly and shell, the inside inner shell that is the cavity of inner shell body and inner shell upper cover combination. The ferrule assembly, the spring pushing piece, the spring and the optical cable bushing are arranged in an inner cavity of the inner shell, the outer shell is arranged at the front end of the inner shell, and the rear end of the inner shell is connected with the tail sleeve, so that the complete MPO connector is assembled.

Referring to fig. 2, fig. 3 and fig. 7, do the utility model discloses the structural schematic of inner shell body and inner shell upper cover, the inner shell body is formed by cylinder structure and the combination of cuboid structure, except that a small part of inner shell body front end, the other part tops of inner shell body open, the inside fretwork of inner shell body, the both sides of inner shell body cuboid structure part are equipped with the draw-in groove, the both sides of inner shell upper cover bottom surface are equipped with the buckle, the buckle and the draw-in groove joint of inner shell body, the inner shell upper cover is formed by the combination of arc surface section and square surface section, and two sections junctions are equipped with the pivot, and square surface section can be followed the pivot and upwards buckled, and the arc surface section of inner shell upper cover is connected with the cylindrical. When the inner shell was sealed, because the back end of inner shell body and inner shell upper cover is connected all the time, pressed the square face section of inner shell upper cover, the draw-in groove of inner shell body is gone into to the buckle card of inner shell upper cover, formed the connection of anterior segment for the inner shell is whole sealed. When the inner shell was opened, because the back end of inner shell body and inner shell upper cover is connected all the time, pressed the convex buckle in the inner shell body draw-in groove for draw-in groove and buckle do not have the cooperation in an instant, can upwards buckle the square face section of inner shell upper cover.

Referring to fig. 3 and fig. 4, the spring pushes away a setting in the inner chamber of inner shell, the spring pushes away a left and right sides and is equipped with the lug, the inner shell body inner chamber left and right sides is equipped with the stopper, the spring pushes away the rear end of piece by the inner shell body and pushes away to the front end, because the stopper both sides are opened there is the slotted hole, and the stopper has certain elasticity, when the lug that pushes away the piece at the spring did not reach the stopper, the lateral wall that the spring pushed away the piece is with the ejecting slotted hole of stopper, when the lug that pushes away the piece at the spring reached the stopper, because the stopper has lost the power that the spring pushed away the piece, consequently, the stopper pops out to the center, lean on and push away a lug rear end in the spring, make the spring push away the piece can't.

Referring to fig. 5 and 6, the assembly steps of the present invention are as follows:

1. the optical cable bushing is sleeved on the optical cable, and the optical fiber penetrates through a hole in the middle of the spring pushing piece, the spring between the spring pushing piece and the ferrule assembly, then penetrates through a through hole in the middle of the ferrule assembly and extends to the foremost end of the through hole;

2. the assembled optical cable and the ferrule assembly are placed into the inner shell body, the optical cable bushing is arranged in the cavity of the cylindrical structure of the inner shell body, the spring pushing piece, the spring and the ferrule assembly are arranged in the cavity of the cubic structure of the inner shell body, and because the front section of the ferrule assembly is narrow and the rear section of the ferrule assembly is wide, the narrow part penetrates out of the through hole of the inner shell body;

3. dispensing and fixing the rear section of the inner shell body, and simultaneously pushing the spring pushing piece forwards to ensure that all parts of the whole connector are connected and fixed;

4. and covering the upper cover of the inner shell, and pushing the tail sleeve and the outer shell.

Claims

1. Integral type inner shell MPO connector, including inner shell, lock pin subassembly, shell and tail cover, inner shell inner chamber front end is equipped with the lock pin subassembly, and the inner shell front end sets up in the shell, and the tail cover is connected to the inner shell rear end, its characterized in that still includes

The spring pushing piece is arranged at the rear end of the inner cavity of the inner shell;

the optical cable bushing is sleeved on the optical cable and arranged in the inner cavity of the inner shell cylinder;

the inner shell comprises an inner shell body and an inner shell upper cover, the inner shell body is hollow, the inner shell with a hollow cavity can be assembled with the inner shell upper cover, and the spring pushing piece and the optical cable bushing are arranged in an inner cavity of the inner shell.

2. The one-piece inner housing MPO connector of claim 1, wherein: the inner shell body form by cylinder structure and square body structure combination, the top is opened, inside fretwork, the inner shell body square body structure inner wall left and right sides is equipped with the draw-in groove, the inner shell upper cover bottom left and right sides be equipped with the buckle, with the draw-in groove joint.

3. An integrated inner housing MPO connector according to claim 1 or 2, wherein: the inner shell upper cover is formed by combining a square structure and an arc-shaped structure which are matched with the inner shell body, a rotating shaft is arranged at the junction, and the square structure can be bent upwards around the rotating shaft.

4. The one-piece inner housing MPO connector of claim 1, wherein: the spring push piece left and right sides be equipped with the lug, the inner shell body inner chamber left and right sides be equipped with the stopper, the stopper supports to lean on the lug that the spring pushed the piece.

5. The one-piece inner housing MPO connector of claim 1, wherein: the front end of the inner shell body is provided with a through hole, the front end of the ferrule assembly penetrates through the through hole of the inner shell body, and the rear end of the ferrule assembly is arranged in the inner cavity of the inner shell body.

6. The one-piece inner housing MPO connector of claim 1, wherein: the spring pushing piece is connected with the ferrule assembly through a spring.

7. The one-piece inner housing MPO connector of claim 1, wherein: the spring pushes away to open forward and backward and has the through-hole, lock pin subassembly forward and backward open and have the through-hole, optic fibre passes spring and pushes away a and the spring extends to lock pin subassembly through-hole front end.