CN212276032U

CN212276032U - Integrated ceramic ferrule

Info

Publication number: CN212276032U
Application number: CN202021211875.3U
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: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-01-01
Anticipated expiration: 2030-06-28

Abstract

The utility model relates to a fiber connector accessory technical field is an integral type pottery lock pin particularly, including the optic fibre canned paragraph, it has the through-hole to open in the optic fibre canned paragraph for fixed optic fibre, its characterized in that: the module matching section and the optical fiber fixing section are integrated, a through hole is formed in the module matching section, the size of the through hole of the module matching section is larger than that of the through hole of the optical fiber fixing section, an additional machine component is removed, the size can be smaller, the step of pressing the ferrule into the mechanism component is also removed, the possibility of connection failure is reduced, and meanwhile, the size control is easier; the optical fiber is protected more completely, the stripping point of the optical fiber (namely the junction point of the optical fiber cladding and the optical fiber coating layer) is protected inside the ferrule assembly, and external force acting on the optical fiber is not easy to be transmitted to the point.

Description

Integrated ceramic ferrule

Technical Field

The utility model relates to a fiber connector accessory technical field is an integral type pottery lock pin particularly.

Background

The optical fiber inserting core is a precise centering component in the optical fiber connector plug, and a micropore is formed in the center of the optical fiber inserting core and used for fixing an optical fiber. As a fiber optic ferrule, application No.: 201420371293X, the most common fiber optic ferrule of this patent, includes a cylindrical ferrule body and a ferrule bore; the core inserting hole is formed in the core inserting body and is characterized in that the core inserting hole is composed of a cylindrical grinding end face inner hole and a cylindrical connecting end face inner hole, the hole diameter of the grinding end face inner hole is a, the hole diameter of the connecting end face inner hole is b, b is larger than a, glue easily penetrates through the whole core inserting hole, bare optical fibers easily penetrate through the whole core inserting hole, and fiber breakage is avoided.

The fiber stub is typically divided into two parts, a front end for holding the fiber and a rear end for connection to other structures of the connector (e.g., springs, inner housing), so that the rear end is fitted with a mechanical member that is larger in size than the front end.

However, as the miniaturization of optical modules and connectors is more and more demanding, ferrule assemblies are required to be more and more compact in size, and the reliability of optical fiber assemblies is also required to be more and more demanding.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve two weak points that prior art exists: 1. the additional mechanical components are arranged, so that the overall size is large, and the requirements of some small optical fiber connectors at present cannot be met; 2. the optical fiber ferrule is usually internally provided with a through hole for fixing an optical fiber cladding, the ferrule assembly with a component is installed, and the rear section is not provided with the through hole for fixing an optical fiber coating, so that the interface point of the optical fiber cladding and the optical fiber coating is easily transmitted by external force on the optical fiber, and meanwhile, the thickness of a glue layer is too large, and stress concentration is easily caused.

In order to realize above-mentioned purpose, design an integral type pottery lock pin, including the fixed section of optic fibre, it has the through-hole to open in the fixed section of optic fibre for fixed optic fibre, its characterized in that: the optical fiber module is characterized by further comprising a module matching section, wherein the module matching section and the optical fiber fixing section are integrated, a through hole is formed in the module matching section, and the size of the through hole in the module matching section is larger than that of the through hole in the optical fiber fixing section.

Preferably, the module matching section and the optical fiber fixing section are cylindrical structures, and the outer diameter of the module matching section is larger than that of the optical fiber fixing section.

Preferably, the size of the through hole of the optical fiber fixing section is larger than 125 μm and smaller than 130 μm.

Preferably, the module fitting section through hole is matched with the optical fiber coating layer in size.

Preferably, the module matching section end through hole is provided with a chamfer.

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

1. the extra mechanical component is removed, so that the size can be made smaller, and the original step of pressing the inserting core into the mechanical component is also removed, so that the possibility of coupling failure is reduced, and the size control is easier;

2. the optical fiber is more completely protected, a stripping point (namely a junction point of an optical fiber cladding and an optical fiber coating layer) of the optical fiber is protected inside the ferrule assembly, and external force acting on the optical fiber is not easily transmitted to the point;

3. the outer diameter of the rear section of the ferrule assembly is increased, so that the wall thickness of the rear section is increased, and the mechanical strength is also increased;

4. the thickness of the glue layer at the junction of the optical fiber cladding and the optical fiber coating layer is reduced, the material diversity is reduced, and the problem of stress concentration is solved;

5. the optical fiber coating layer is arranged in the through hole in the module matching section, so that the distance between the junction point and the tail end of the optical fiber cladding layer and the optical fiber coating layer is farther, and the optical fiber is better protected.

Drawings

FIG. 1 is a schematic view of a prior art plug assembly configuration;

FIG. 2 is a schematic view of the ferrule assembly of the present invention;

FIG. 3 is a perspective view of the ferrule assembly of the present invention;

in the figure: 1. and the optical fiber fixing section 2 is a module matching section.

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. 2 and 3, the utility model provides an integral type pottery lock pin, including optic fibre canned paragraph and module cooperation section, optic fibre canned paragraph and module cooperation section integrated into one piece constitute a holistic pottery lock pin, and it has the through-hole to open in the optic fibre canned paragraph, is the same as fixed optic fibre, also opens in the module cooperation section has the through-hole for fixed optic fibre coating, the external diameter of module cooperation section is greater than the external diameter of optic fibre canned paragraph.

The size of the optical fiber cladding is 125 μm, so that the size of the through hole of the optical fiber fixing section can be 125 μm-130 μm, the optical fiber can be fixed, the optical fiber is not deviated from the upper part, the lower part, the left part and the right part, and the through hole of the optical fiber fixing section is generally circular.

The size of the through hole of the module matching section is adjusted according to the size of the optical fiber coating layer, the through hole of the module matching section can be in various shapes such as circular, square and hexagonal shapes, the through hole is specifically adjusted according to the shape of the optical fiber coating layer, and the through hole can play the role of limiting the optical fiber coating layer. Because the optical fiber cladding and the optical fiber coating layer are fixed, the optical fiber stripping point is not easily transmitted by the external force of the optical fiber.

The shape of module cooperation section generally is the cylinder structure, also can do the adjustment according to the exterior structure of other parts of fiber connector, as long as can guarantee that the exterior structure through module cooperation section can cooperate with the exterior structure of other parts of fiber connector can. The module mating section has an outer dimension greater than an outer dimension of the fiber securing section, and preferably, the difference between the outer dimension of the module mating section and the outer dimension of the fiber securing section is greater than the difference between the size of the module mating section through hole and the size of the fiber securing section through hole.

Referring to fig. 1, for the structural schematic diagram of current optic fibre lock pin subassembly, divide into anterior segment and back end, the anterior segment with the utility model discloses an optic fibre canned paragraph is similar, is a simple cylinder structure, and inside division has the through-hole that is used for fixed optic fibre covering, and the through-hole end that lies in current optic fibre lock pin subassembly anterior segment is different to be equipped with the chamfer, and the back end is a mechanism spare, the inside fretwork of mechanism spare, and anterior segment insertion mechanism adds, and the terminal chamfer of anterior segment through-hole has formed a great space with the fretwork part of mechanism spare. The optical fiber cladding and the optical fiber coating layer are arranged in the space, and the optical fiber cladding is fixed, so that the optical fiber coating layer is not fixed, and the reliability is easily influenced by the external force of the optical fiber. Meanwhile, the hollowed-out space is large, and a thicker glue layer is needed for fixing, so that stress concentration is easily caused.

The utility model discloses got rid of the machine component, designed into an organic whole structure with optic fibre canned paragraph and module cooperation section, inside does not have big fretwork part, can carry on spacingly well to optic fibre covering and optic fibre coating, can increase more solid parts again for mechanical strength is higher.

When the utility model is used in concrete, glue is injected into the insertion core to fill the redundant space; meanwhile, after the glue is solidified, the conventional grinding and polishing treatment of the optical fiber ferrule is carried out.

Claims

1. The utility model provides an integral type pottery lock pin, includes the optic fibre canned paragraph, it has the through-hole to open in the optic fibre canned paragraph for fixed optic fibre, its characterized in that: the optical fiber module is characterized by further comprising a module matching section, wherein the module matching section and the optical fiber fixing section are integrated, a through hole is formed in the module matching section, and the size of the through hole in the module matching section is larger than that of the through hole in the optical fiber fixing section.

2. The one-piece ferrule of claim 1, wherein: the module matching section and the optical fiber fixing section are of cylindrical structures, and the outer diameter of the module matching section is larger than that of the optical fiber fixing section.

3. The one-piece ferrule of claim 1, wherein: the size of the through hole of the optical fiber fixing section is larger than 125 μm and smaller than 130 μm.

4. The one-piece ferrule of claim 1, wherein: and the size of the module matching section through hole is matched with the optical fiber coating layer.

5. The one-piece ferrule of claim 1, wherein: and a chamfer is arranged at the through hole at the tail end of the module matching section.