CN215867220U - Fiber Optic Connector Plugs, Receptacles and Assemblies - Google Patents

Abstract

A plug, a socket and a component of an optical fiber connector are provided, the plug of the connector comprises a plug shell, a first inserting core and a first optical fiber, the first inserting core is provided with a first optical fiber hole, the first optical fiber is fixed in the first optical fiber hole, and the plug shell is wrapped on the outer side of the first inserting core; the end face of the first inserting core is provided with a first bulge, so that when the connector plug is butted with the connector socket, the end face of the first optical fiber is away from the end face of a second optical fiber built in the connector socket by a preset distance, and the first optical fiber is prevented from contacting with the second optical fiber.

Description

Optical fiber connector plug, socket and assembly thereof

Technical Field

The utility model relates to the technical field of optical communication, in particular to a plug, a socket and a component of an optical fiber connector.

Background

The optical fiber connector is a device for making detachable connection between optical fibers, and precisely butt-joints two end faces of the optical fibers so as to maximally couple the light energy output by the transmitting optical fiber into the receiving optical fiber and to minimize the influence on the system caused by the intervention of the optical fiber into an optical link.

When a connector plug and a connector socket of the existing optical fiber connector are used, due to no protection measures, optical fiber ferrules in the connector plug and the connector socket are easy to directly butt and contact, and therefore abrasion of the optical fiber ferrules is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides an optical fiber connector plug, an optical fiber connector socket and an optical fiber connector assembly, which can prevent a second optical fiber from being directly contacted with a first optical fiber through a first bulge and/or a second bulge, and avoid the problem of contact abrasion between the second optical fiber and the first optical fiber.

According to a first aspect of the present invention, the present invention provides an optical fiber connector plug, configured to cooperate with a connector socket, including a plug housing, a first ferrule and a first optical fiber, where the first ferrule is provided with a first optical fiber hole, the first optical fiber is fixed in the first optical fiber hole, and the plug housing is wrapped outside the first ferrule;

the end face of the first ferrule is provided with a first protrusion, so that when the connector plug is butted with the connector socket, the end face of the first optical fiber is away from the end face of a second optical fiber built in the connector socket by a preset distance to prevent the first optical fiber from contacting with the second optical fiber.

In the connector plug of an embodiment of the present invention, the first protrusion includes a first film of 0.01mm or more provided on the first ferrule.

In the connector plug according to the embodiment of the present invention, the first film is a metal plating film provided on the first ferrule.

In the connector plug according to an embodiment of the present invention, the first ferrule includes a first optical fiber contact element and a first seat, the first optical fiber contact element is connected to the first seat, and the first seat is connected to a guide pin for being engaged with a guide pin hole of the connector socket.

In the connector plug according to an embodiment of the present invention, the number of the guide pins is two, and the two guide pins are symmetrically disposed at two ends of the first housing with respect to a central axis of the first housing.

According to a second aspect of the present invention, the present invention further provides an optical fiber connector socket, including a socket housing, a second optical fiber and a second ferrule having a guide pin hole, the second ferrule having a second optical fiber hole, the second optical fiber being fixed in the second optical fiber hole, the socket housing being wrapped outside the second ferrule;

and the end face of the second ferrule is provided with a second protrusion, so that when the connector socket is butted with a connector plug, the end face of the second optical fiber is away from the end face of the first optical fiber built in the connector plug by a preset distance to prevent the second optical fiber from contacting with the first optical fiber.

In the connector receptacle according to an embodiment of the present invention, the second protrusion includes a first thin film of 0.01mm or more provided on the second ferrule.

In the connector receptacle according to an embodiment of the present invention, the first film is a metal plating film provided on the second ferrule.

In the connector receptacle according to an embodiment of the present invention, the second ferrule includes a second optical fiber contact member and a second seat having a guide pin hole, and the second ferrule includes a second optical fiber contact member, and the second optical fiber contact member is provided with a guide pin hole for being engaged with the guide pin of the connector plug.

According to a third aspect of the present invention, there is also provided an optical fiber connector assembly comprising the above connector plug and the above connector receptacle, wherein when the connector plug is plugged into the connector receptacle, the first protrusion abuts against the second protrusion to prevent the first optical fiber from contacting the second optical fiber.

The technical scheme provided by the embodiment of the application can have the following beneficial effects: the application designs an optical fiber connector plug, socket and subassembly thereof, can be through setting up first arch on first lock pin or set up the second arch on the second lock pin for when connector plug docks with the connector socket, the terminal surface of first optic fibre is apart from the predetermined distance with the terminal surface of second optic fibre, thereby can prevent first optic fibre and second optic fibre direct contact, avoids second optic fibre and first optic fibre to take place because of the problem of contact wear, and its structural design is simple reliable.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a fiber optic connector assembly according to an embodiment of the present application;

FIG. 2 is a cross-sectional schematic view of the fiber optic connector assembly of FIG. 1;

FIG. 3 is an enlarged schematic view of FIG. 2 at A;

FIG. 4 is an exploded schematic view of the fiber optic connector assembly of FIG. 1;

FIG. 5 is a schematic structural view of the fiber optic connector plug of FIG. 1;

FIG. 6 is a cross-sectional schematic view of the fiber optic connector plug of FIG. 5;

FIG. 7 is an exploded schematic view of the fiber optic connector plug of FIG. 5;

FIG. 8 is an exploded schematic view of the first ferrule of FIG. 5;

FIG. 9 is a schematic diagram of the fiber optic connector receptacle of FIG. 5;

FIG. 10 is a cross-sectional schematic view of the fiber optic connector receptacle of FIG. 9;

FIG. 11 is an exploded view of the fiber optic connector receptacle of FIG. 9;

figure 12 is an exploded schematic view of the second ferrule of figure 9.

Description of reference numerals:

100. a connector plug; 200. a connector receptacle;

10. a first fiber contact; 11. a first fiber hole; 12. a first protrusion; 20. a first seat body; 21. Guiding a needle; 30. a first snap ring; 40. a plug housing; 50. a second optical fiber contact; 51. a second fiber hole; 52. a second protrusion; 53. a guide pin hole; 60. a second seat body; 61. a second guide pin; 70. a second snap ring; 80. a socket housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

As shown in fig. 1 to 12, the present application provides an optical fiber connector assembly, which includes a connector plug 100 and a connector receptacle 200, wherein the connector plug 100 includes a plug housing 40, a first ferrule and a first optical fiber, the first ferrule is provided with a first optical fiber hole 11, the first optical fiber is fixed in the first optical fiber hole 11, and the plug housing 40 is wrapped outside the first ferrule. In the present embodiment, the end surface of the first ferrule is provided with the first protrusion 12, so that when the connector plug 100 is mated with the connector receptacle 200, the end surface of the first optical fiber is away from the end surface of the second optical fiber embedded in the connector receptacle 200 by a predetermined distance, so as to prevent the first optical fiber from directly contacting the second optical fiber, thereby avoiding the problem of contact abrasion between the second optical fiber and the first optical fiber.

Illustratively, as shown in fig. 2 to 8, the connector plug 100 includes a first stop ring 30, the plug housing 40 encloses the first ferrule and a portion of the first stop ring 30, and the remaining portion of the first stop ring 30 is exposed outside the plug housing 40 to protect the first optical fiber.

In an alternative embodiment, the first protrusion 12 includes a first film greater than or equal to 0.01mm disposed on the first ferrule, and the first film can be fixed on the first ferrule by any form without redesigning and opening the connector plug 100, and the structure design is relatively simple and reliable.

It should be noted that the first protrusion 12 may also be a protrusion structure integrally formed with the first ferrule, and the material of the first protrusion 12 may be metal or nonmetal, which is mainly used to avoid preventing the first optical fiber from directly contacting the second optical fiber, and the material of the first protrusion 12 is not limited in this application.

In an alternative embodiment, the first membrane is a metal coating disposed on the first ferrule.

Illustratively, after wrapping the first optical fiber on the first ferrule, plating a metal film with a thickness greater than or equal to 0.01mm on the first ferrule to form a boss, when the connector plug 100 is butted with the connector socket 200, because the metal film is plated on the surface of the first ferrule, a gap greater than or equal to 0.01mm is formed on the surface of the connector plug 100 butted with the connector socket 200, so as to prevent the first optical fiber from contacting with the second optical fiber, avoid the problem of contact abrasion between the second optical fiber and the first optical fiber, and have a simple and reliable structural design.

In an alternative embodiment, as shown in fig. 3 to 12, the first ferrule includes a first fiber contact 10 and a first housing 20, the first fiber contact 10 is connected to the first housing 20, wherein a guide pin 21 is disposed on the first housing 20 for matching with the guide pin hole 53 of the connector socket 200, so as to achieve precise alignment between the first fiber contact 10 and the second fiber contact 50 disposed in the connector socket 200.

Adopt guide pin 21 and guide pin hole 53 to fix a position, can be at connector plug 100 and connector socket 200's grafting in-process, because there is friction between the inner wall of guide pin 21 and guide pin hole 53, can avoid the too fast and/or too big and cause the damage of second optic fibre or first optic fibre of speed of grafting, guide pin 21 and guide pin hole 53's cooperation promptly, speed when can reducing connector plug 100 and connector socket 200 and peg graft improves the reliability of pegging graft.

In an alternative embodiment, the number of the guide pins 21 is two, and the two guide pins 21 are symmetrically disposed at two ends of the first housing 20 with respect to a central axis of the first housing 20, so as to ensure balanced stress when the connector plug 100 is plugged into the connector receptacle 200 and precise docking of the first optical fiber contact 10 with the second optical fiber contact 50.

In addition, the first optical fiber contact 10 is detachably connected with the plug housing 40, that is, the connector plug 100 can replace different first optical fiber contacts 10 when in use, so that the 12-core, 24-core and 48-core replacement can be realized, and then the influence of vibration and impact environment on the optical fiber connector assembly can be further reduced by the guide pin 21, and the stability of the product is improved.

In an alternative embodiment, as shown in fig. 3 to 12, the optical fiber connector receptacle 200 includes a receptacle housing 80, a second optical fiber and a second ferrule having a guide pin hole 53, wherein the second ferrule has a second optical fiber hole 51, the second optical fiber is fixed in the second optical fiber hole 51, and the receptacle housing 80 is wrapped outside the second ferrule. In this embodiment, the end surface of the second ferrule is provided with the second protrusion 52, so that when the connector receptacle 200 is mated with the guide pin through the guide pin hole 53 and the guide pin to realize the butt joint with the connector plug 100, the end surface of the second optical fiber is away from the end surface of the first optical fiber built in the connector plug 100 by a predetermined distance, so as to prevent the second optical fiber from directly contacting the first optical fiber, and avoid the problem of contact abrasion between the second optical fiber and the first optical fiber, and the structure design is simple and reliable.

Illustratively, the connector receptacle 200 includes a second snap ring 70, the receptacle housing 80 encloses the second ferrule and a portion of the second snap ring 70, and the remaining portion of the second snap ring 70 is exposed outside the receptacle housing 80 to protect the first optical fiber.

In an alternative embodiment, the second protrusion 52 includes a first membrane disposed on the second ferrule and greater than or equal to 0.01mm, wherein the first membrane can be fixed on the second ferrule in any form without redesigning and opening the connector receptacle 200, and the structure design is relatively simple and reliable.

Since the thickness of the first protrusion 12 is greater than or equal to 0.01mm and the thickness of the second protrusion 52 is greater than or equal to 0.01mm, when the connector receptacle 200 is mated with the connector plug 100, the end face of the first optical fiber is at least greater than or equal to 0.02mm away from the end face of the second optical fiber by the predetermined distance L, so that the first optical fiber can be maximally prevented from contacting the second optical fiber. The size of the fiber optic contact module.

It should be noted that the second protrusion 52 may also be a protrusion structure integrally formed with the second ferrule, and the material of the second protrusion 52 may be metal or non-metal, which is mainly used to avoid preventing the first optical fiber from directly contacting the second optical fiber, and the material of the second protrusion 52 is not limited in this application.

In an alternative embodiment, the first membrane is a metal coating disposed on the first ferrule.

Illustratively, after the second optical fiber is wrapped on the second ferrule, a metal film with a thickness greater than or equal to 0.01mm is plated on the second ferrule to form a boss, when the connector plug 100 is butted with the connector socket 200, because the metal films are plated on the surfaces of the second ferrule and the first ferrule, a gap with a thickness greater than or equal to 0.02mm is formed on the surface where the connector plug 100 is butted with the connector socket 200, so that the first optical fiber and the second optical fiber can be prevented from contacting, the problem of contact abrasion between the second optical fiber and the first optical fiber can be avoided, and the structural design is simple and reliable.

In an alternative embodiment, the second ferrule includes second fiber contacts 50 and a second housing 60, wherein the second fiber contacts 50 are connected to the second housing 60, and guide pin holes 53 are provided on the second fiber contacts 50 for mating with the guide pins 21 of the connector plug 100.

Illustratively, the second housing 60 is provided with a second guide pin 61, so that the second housing 60 can be fixed on the second fiber contact member 50 by the connection of the second guide pin 61 and the guide pin hole 53.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. 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, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different features of the utility model. The components and arrangements of the specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means 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 present invention. In this specification, schematic representations of the above terms 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An optical fiber connector plug for use with a connector socket, characterized in that it comprises a plug housing, a first ferrule and a first optical fiber, and the first ferrule is provided with a first optical fiber hole, the first optical fiber is fixed in the first optical fiber hole, and the plug housing is wrapped around the outside of the first ferrule; Wherein, the end surface of the first ferrule is provided with a first protrusion, so that when the connector plug is docked with the connector socket, the end surface of the first optical fiber is connected to the first protrusion built in the connector socket. The end faces of the two optical fibers are separated by a predetermined distance to prevent the first optical fiber from directly contacting the second optical fiber. 2 . The connector plug according to claim 1 , wherein the first protrusion comprises a first film that is provided on the first ferrule and is greater than or equal to 0.01 mm. 3 . 3 . The connector plug of claim 2 , wherein the first film is a metal plating film provided on the first ferrule. 4 . 4. The connector plug of claim 1, wherein the first ferrule comprises a first optical fiber contact piece and a first base body, and the first optical fiber contact piece is connected to the first base body , the first base body is connected with a guide pin for matching with the guide pin hole of the connector socket. 5 . The connector plug according to claim 4 , wherein the number of the guide pins is two, and the two guide pins are symmetrically arranged on the first seat relative to the central axis of the first seat body. both ends of a body. 6. An optical fiber connector socket, characterized in that it comprises a socket housing, a second optical fiber and a second ferrule with a pin hole, the second ferrule is provided with a second optical fiber hole, and the second optical fiber The optical fiber is fixed in the second optical fiber hole, and the socket housing is wrapped on the outer side of the second ferrule; Wherein, the end face of the second ferrule is provided with a second protrusion, so that when the connector socket and the connector plug are butted, the end face of the second optical fiber and the first optical fiber built in the connector plug The end faces of the second optical fibers are separated by a predetermined distance to prevent the second optical fiber from directly contacting the first optical fiber. 7 . The connector socket of claim 6 , wherein the second protrusion comprises a first film that is provided on the second ferrule and is greater than or equal to 0.01 mm. 8 . 8 . The connector socket of claim 7 , wherein the first film is a metal plating film provided on the second ferrule. 9 . 9 . The connector socket according to claim 6 , wherein the second ferrule comprises a second optical fiber contact piece, and the second optical fiber contact piece is provided with a pin guide hole for connecting with the the guide pins of the connector plug. 10. An optical fiber connector assembly, characterized by comprising the connector plug as claimed in any one of claims 1 to 5 and the connector receptacle as claimed in any one of claims 6 to 9, wherein the When the connector plug is inserted into the connector socket, the first protrusion abuts against the second protrusion to prevent the first optical fiber from directly contacting the second optical fiber.

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