CN214310995U - Multi-core optical fiber connector - Google Patents

Abstract

The embodiment of the utility model relates to a multicore fiber connector, which comprises a housin, install separated time seat and heart yearn sheath in the casing, set up the wiring hole that a plurality of runs through the separated time seat setting on the separated time seat, stretch into in the casing and the cable that contains many heart yearns from the casing rear end and insert the wiring hole of separated time seat with every heart yearn correspondence again after passing a heart yearn sheath respectively in, separated time seat passes through secondary injection moulding technology shaping with the heart yearn sheath and is as an organic whole, every heart yearn sheath seted up with wiring hole butt joint and with heart yearn interference fit's through wires hole. The embodiment of the utility model effectively avoids the water vapor from permeating through the butt joint surface between the wire separating seat and the core wire sheath by forming the wire separating seat and the core wire sheath into a whole through the secondary injection molding process; in addition, the threading hole of heart yearn sheath and heart yearn interference fit, the heart yearn sheath can wrap up the heart yearn well, avoids steam to permeate along the heart yearn surface. From this, the whole waterproof performance of multicore fiber connector has been promoted by a wide margin.

Description

Multi-core optical fiber connector

Technical Field

The embodiment of the utility model provides a relate to fiber connector technical field, especially indicate a multicore fiber connector.

Background

The conventional multi-core fiber optic connector mainly includes a housing, a wire-separating base and a core wire sheath. The cable distributing seat is characterized in that a plurality of wiring holes penetrating through the cable distributing seat are formed in the cable distributing seat, when the cable distributing seat is actually used, a cable containing a plurality of core wires extends into the shell from the rear end of the shell, and each core wire correspondingly penetrates through one core wire sheath and then is inserted into the wiring holes of the cable distributing seat one by one. The existing multi-core optical fiber connector branching seat and core wire sheath are manufactured and molded respectively, and the existing multi-core optical fiber connector branching seat and the core wire sheath are only mutually abutted when in use, and the waterproof performance of the joint surfaces of the existing multi-core optical fiber connector branching seat and the core wire sheath is poor, so that water vapor enters the interior of the existing multi-core optical fiber connector through the joint surfaces to influence the connection and signal transmission performance of the core part inside the optical fiber connector.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem who solves lies in, provides a multicore fiber connector, can effectively promote waterproof performance.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solution: a multi-core optical fiber connector comprises a shell, a branching seat and core wire sheaths, wherein the branching seat and the core wire sheaths are arranged in the shell, a plurality of wiring holes which are formed in the branching seat and penetrate through the branching seat are formed in the branching seat, a cable which extends into the shell from the rear end of the shell and comprises a plurality of core wires penetrates through one core wire sheath in a corresponding mode through each core wire, the wiring holes of the branching seat are inserted into the wiring holes of the branching seat in a one-to-one correspondence mode, the branching seat and the core wire sheaths are formed into a whole through a secondary injection molding process, and each core wire sheath is provided with a threading hole which is in butt joint with the wiring holes and is in interference fit with the core wires.

Furthermore, a rear waterproof gasket is arranged between the rear end part of the wire distributing seat and the inner wall of the shell.

Furthermore, the rear waterproof gasket comprises a main ring body wrapped on the side face of the tail end of the branching seat and a folding ring folded from one end, close to the tail end face of the branching seat, of the main ring body to extend inwards for a preset distance and attached to the tail end face of the branching seat.

Furthermore, the shell consists of a front shell and a rear shell which is sleeved at the rear end part of the front shell and is in corresponding threaded connection with the front shell, the front shell is sleeved at the front end part of the junction box and is abutted against the rear waterproof gasket, and a rear stopping step which is used for being abutted against the end surface of the rear waterproof gasket is further formed at the position of the rear shell corresponding to the rear waterproof gasket.

Furthermore, the inner part of the front shell is also assembled with a plug socket which is tightly attached to the front end face of the distributing socket, the inner wall of the front shell is also provided with a front stopping step which is used for correspondingly preventing the plug socket from being separated from the front end opening of the front shell, and the side face of the plug socket is correspondingly provided with a convex part which is abutted against the front stopping step.

Further, the multi-core optical fiber connector is a socket connector, a front waterproof gasket is further sleeved on the socket and tightly abutted to the outer side face of the socket and the inner wall of the front shell respectively, an outer embedded groove and an inner embedded groove are formed in the inner wall of the front shell and the outer side face of the socket respectively, and the outer edge and the inner edge of the front waterproof gasket are embedded in the outer embedded groove and the inner embedded groove respectively and are attached to step faces correspondingly arranged on the socket through inner end faces.

Further, the lateral surface of procapsid still is formed with the flange limit in the preceding terminal surface department of being close to back casing, still the cover is equipped with outside waterproof gasket on the procapsid, outside waterproof gasket is still attached the flange limit orientation on the surface of one side of back casing.

Furthermore, the multi-core optical fiber connector is a plug connector, the tail end of the shell is reduced to form an external connection pipe, an outer sheath with a preset length is connected to the external connection pipe in a sealing mode, the cable penetrates through the outer sheath and the surface of the external connection pipe and then extends into the shell, and the inner wall of the outer sheath is in sealing combination with the outer surface of the cable.

Furthermore, the tail part of the external connecting pipe is provided with a compression ring, and the outer sheath and the external connecting pipe clamp the compression ring to realize sealing connection.

Further, the outer sheath is a heat shrinkable tube with glue.

Adopt above-mentioned technical scheme, the embodiment of the utility model provides a following beneficial effect has at least: the branching seat and the core wire sheath are molded into a whole through a secondary injection molding process, so that the influence of water vapor on the connection and signal transmission performance of the core part of the optical fiber connector due to the permeation of the butt joint surface between the branching seat and the core wire sheath is effectively avoided; in addition, through the through wires hole design with the heart yearn sheath for with heart yearn interference fit, when the heart yearn passed, the heart yearn sheath can wrap up in the heart yearn well, avoids steam to follow the infiltration of heart yearn surface. From this, promoted by a wide margin the embodiment of the utility model provides a multicore fiber connector's whole waterproof performance.

Drawings

Fig. 1 is a schematic perspective view of the multi-fiber optical connector of the present invention in a disassembled state when the multi-fiber optical connector is a receptacle connector in one embodiment.

Fig. 2 is a schematic perspective view of the multi-fiber optical connector of the present invention in an embodiment of a receptacle connector.

Fig. 3 is a schematic cross-sectional view of the multi-fiber connector of the present invention, which is a receptacle connector in one embodiment, assembled to a mounting plate of a corresponding device.

Fig. 4 is a schematic perspective view of the multi-core optical fiber connector of the present invention in another embodiment, which is a plug connector.

Fig. 5 is a perspective view of the multi-core fiber connector of the present invention in a disassembled state when the multi-core fiber connector is a plug connector in another embodiment.

Fig. 6 is a schematic cross-sectional view of the multi-fiber connector of the present invention in an assembled state when the multi-fiber connector is a plug connector in another embodiment.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended as a limitation of the present invention, and that features of the embodiments and examples may be combined with each other without conflict.

As shown in fig. 1 to 6, an alternative embodiment of the present invention provides a multi-fiber optical connector, which may be a receptacle connector as shown in fig. 1 to 3 or a plug connector as shown in fig. 4 to 6. The multicore optical fiber connector comprises a shell 1, a branching seat 3 and core wire sheaths 5, wherein the branching seat 3 and the core wire sheaths 5 are arranged in the shell 1, a plurality of wiring holes 30 are formed in the branching seat 3 and penetrate through the branching seat 3, a cable (not shown) which extends into the shell 1 from the rear end of the shell 1 and comprises a plurality of core wires (not shown) penetrates through one core wire sheath 5 respectively by each core wire and then is inserted into the wiring holes 30 of the branching seat 3 in a one-to-one correspondence manner, the branching seat 3 and the core wire sheaths 5 are formed into a whole through a secondary injection molding process, and each core wire sheath 5 is provided with a threading hole 50 which is butted with the wiring hole 30 and is in interference fit with the core wires.

The embodiment of the utility model effectively avoids the water vapor from permeating through the butt joint surface between the branching seat 3 and the core wire sheath 5 to affect the connection and signal transmission performance of the core part of the optical fiber connector by forming the branching seat 3 and the core wire sheath 5 into a whole through the secondary injection molding process; in addition, through the design of the through wires hole 50 with heart yearn sheath 5 for with heart yearn interference fit, when the heart yearn passes through, heart yearn sheath 5 can wrap up the heart yearn well, avoids steam to permeate along the heart yearn surface. From this, promoted by a wide margin the embodiment of the utility model provides a multicore fiber connector's whole waterproof performance.

In an optional embodiment of the present invention, a rear waterproof gasket 2 is further disposed between the rear end of the wire distributing base 3 and the inner wall of the casing 1. In the embodiment, the waterproof gasket 2 is further arranged at the rear end part of the branching seat 3, so that water vapor can be effectively prevented from permeating from the rear end part of the branching seat 3.

In an optional embodiment of the present invention, the rear waterproof gasket 2 includes a main ring body 20 wrapped on the side of the tail end of the wire separating seat 3 and a hem ring 22 attached to the tail end of the wire separating seat 3, wherein the main ring body 20 is bent at one end of the tail end of the wire separating seat 3 and extends to the inside by a predetermined distance. This embodiment sets up to including the major loop body 20 and hem ring 22 through waterproof packing ring 2 in back, and can wrap up the side of the tail end of separated time seat 3 well and the position that the terminal surface links up, avoids steam to follow the surface infiltration of separated time seat 3 better.

In an optional embodiment of the present invention, as shown in fig. 1 to 6, the casing 1 is composed of a front casing 10 and a rear casing 12 sleeved on a rear end portion of the front casing 10 and screwed into the front casing 10, the front casing 10 is sleeved on a front end portion of the wire distributing base 3 and abutted against the rear waterproof gasket 2, and the rear casing 12 further forms a rear stopping step 120 corresponding to an end surface of the rear waterproof gasket 2 at a position corresponding to the rear waterproof gasket 2. In the present embodiment, the front case 10 and the rear case 12 constituting the case 1 are respectively fitted to the rear waterproof gasket 2, so that the rear waterproof gasket 2 and the case 1 are more closely abutted to each other, and the waterproof performance is better.

In an optional embodiment of the present invention, the socket 7 closely attached to the front end surface of the wire distributing base 3 is further assembled inside the front housing 10, the front housing 10 inner wall is further formed with a front stopping step 100 for correspondingly preventing the socket 7 from coming off from the front end opening of the front housing 10, and the side surface of the socket 7 is correspondingly provided with a convex portion 70 abutting against the front stopping step 100. In this embodiment, the socket 7 is assembled in the front housing 10, the socket 7 is tightly attached to the front end face of the wire distributing base 3, so as to achieve a good waterproof effect, in addition, the front stopping step 100 is arranged inside the front housing 10, the socket 7 is correspondingly provided with the convex portion 70, and the socket 7 can be effectively prevented from slipping out from the front end opening of the front housing 10 by the abutting fit of the convex portion 70 and the front stopping step 100.

In an optional embodiment of the present invention, as shown in fig. 1 to 3, the multi-fiber optical connector is a socket connector, the socket 7 is further sleeved with a front waterproof gasket 4 that is respectively abutted to the outer side surface of the socket 7 and the inner wall of the front housing 10, the inner wall of the front housing 10 and the outer side surface of the socket 7 are respectively provided with an outer caulking groove 102 and an inner caulking groove 72, the outer edge and the inner edge of the front waterproof gasket 4 are respectively embedded in the outer caulking groove 102 and the inner caulking groove 72 and are attached to the corresponding abutting surface 74 on the socket 7 by the inner end surface. This embodiment still overlaps on the plug socket 7 in through the socket connector and establishes preceding waterproof gasket and come butt socket 7 lateral surface and procapsid inner wall respectively, and can avoid steam to get into and follow from the preceding casing front end opening 7 lateral surface infiltration, moreover when the socket connector docks with corresponding plug connector, the preceding terminal surface of the plug socket of plug connector still with preceding waterproof gasket 4 looks butt and avoid steam from the butt joint face infiltration of two connectors.

In an optional embodiment of the present invention, as shown in fig. 1 to 3, the outer side surface of the front casing 10 is further formed with a flange 104 at a position close to the front end surface of the rear casing 12, the front casing 10 is further sleeved with an external waterproof gasket 6, and the external waterproof gasket 6 is further attached to the flange 104 facing a side surface of the rear casing 12. In the embodiment, the outer side surface of the front shell 10 of the socket connector is further provided with the flange 104, and the outer waterproof gasket 6 which is sleeved on the front shell 10 and attached to the flange 104 is arranged, when the socket connector is assembled to the mounting plate 9 of corresponding equipment, the rear shell 12 is arranged on the inner side of the mounting plate 9, the front shell 10 is inserted into a corresponding mounting hole in the mounting plate 9 from the outer side of the mounting plate to be correspondingly connected with the rear shell 12, and the outer waterproof gasket 6 on the flange 104 abuts against the outer surface of the corresponding mounting plate of an installation object, so that the external water vapor is well prevented from permeating into a gap at the connecting part of the front shell 10 and the rear shell 12 along the outer surface of the mounting plate 9 and further permeating into the socket connector, and the waterproof performance is better.

In an optional embodiment of the present invention, as shown in fig. 4 to 6, the multi-core fiber connector is a plug connector, the tail end of the housing 1 is reduced to form an outer tube 122, an outer sheath 8 with a predetermined length is hermetically sealed on the outer tube 122, the cable passes through the outer sheath 8 and the outer tube 122 extends into the housing 1, the inner wall of the outer sheath 8 and the outer surface of the cable are hermetically combined. This embodiment is through the outer takeover 122 that designs the tail end of casing 1 for integrated into one piece and corresponding reduce, and sealed cup joints an oversheath 8 again, and the cable passes in oversheath 8 and outer takeover 122 get into casing 1, can effectively promote waterproof performance.

In an alternative embodiment of the present invention, as shown in fig. 4 and 6, a press ring 124 is assembled at the tail of the outer tube 122, and the outer sheath 8 and the outer tube 122 clamp the press ring 124 to realize a sealed connection. By further arranging a pressure joint ring 124 between the external connecting pipe 122 and the outer sheath 8, the sealing and waterproof performance between the external connecting pipe 122 and the outer sheath 8 can be improved better.

In an optional embodiment of the present invention, the outer sheath 8 is a heat shrinkable tube with glue. By using the heat shrinkable tube with glue to function as the outer sheath 8, the outer sheath 8 can be reheated after being assembled in place, so that the outer sheath 8 can be correspondingly shrunk to well wrap the cable, the outer connecting tube 122 and the crimping ring 124, and a sealing effect can be better achieved.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many changes without departing from the spirit and the scope of the invention as claimed.

Claims (10)

1. A multi-core optical fiber connector comprises a shell, a branching seat and core wire sheaths, wherein the branching seat and the core wire sheaths are arranged in the shell, a plurality of wiring holes which are arranged in the branching seat in a penetrating mode are formed in the branching seat, a cable which extends into the shell from the rear end of the shell and comprises a plurality of core wires penetrates one core wire sheath correspondingly through each core wire and then is inserted into the wiring holes of the branching seat one by one, and the multi-core optical fiber connector is characterized in that the branching seat and the core wire sheaths are formed into a whole through a secondary injection molding process, and each core wire sheath is provided with a threading hole which is in butt joint with the wiring holes and is in interference fit with the core wires.

2. The multi-fiber optical connector of claim 1, wherein a rear waterproof gasket is further disposed between the rear end of the breakout enclosure and the inner wall of the housing.

3. The multi-fiber optical connector of claim 2, wherein the rear waterproof gasket includes a main ring body wrapped around the rear end of the adapter and a crimp ring folded from an end of the main body near the rear end of the adapter to extend inward a predetermined distance and attached to the rear end of the adapter.

4. The multi-core optical fiber connector according to claim 2 or 3, wherein the housing is composed of a front housing and a rear housing sleeved on the rear end of the front housing and screwed with the front housing correspondingly, the front housing is sleeved on the front end of the distributing base and abuts against the rear waterproof gasket, and the rear housing is further provided with a rear stop step corresponding to the rear waterproof gasket and used for abutting against the end face of the rear waterproof gasket.

5. The multi-core optical fiber connector according to claim 4, wherein the front housing further comprises a plug socket tightly attached to the front end surface of the distribution socket, the inner wall of the front housing further comprises a front stopping step for preventing the plug socket from coming off from the front opening of the front housing, and the side surface of the plug socket is correspondingly provided with a convex part abutting against the front stopping step.

6. The multi-core optical fiber connector according to claim 5, wherein the multi-core optical fiber connector is a socket connector, the socket is further sleeved with a front waterproof gasket tightly abutting against the outer side surface of the socket and the inner side surface of the front housing, the inner side surface of the front housing and the outer side surface of the socket are respectively provided with an outer embedding groove and an inner embedding groove, the outer edge and the inner edge of the front waterproof gasket are respectively embedded in the outer embedding groove and the inner embedding groove, and the inner end surface of the front waterproof gasket is attached to a correspondingly arranged step surface on the socket.

7. The multi-core fiber optic connector of claim 6, wherein the outer side of the front housing further defines a flange adjacent the front face of the rear housing, the front housing further being fitted with an outer waterproof gasket, the outer waterproof gasket further being attached to a surface of the flange facing the rear housing.

8. The multi-core optical fiber connector as claimed in claim 1, wherein the multi-core optical fiber connector is a plug connector, the tail end of the housing is reduced to form an outer connection tube, an outer sheath with a predetermined length is sleeved on the outer connection tube, the cable passes through the outer sheath and the outer connection tube and then extends into the housing, and the inner wall of the outer sheath is in sealing combination with the outer surface of the cable.

9. The multi-fiber connector of claim 8, wherein the outer ferrule tail portion is assembled with a crimp ring, the outer jacket and the outer ferrule clamp the crimp ring to form a sealed connection.

10. The multi-fiber connector of claim 8, wherein the outer jacket is a glued heat shrink tubing.

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