CN210775913U

CN210775913U - Device for preventing capillary tail fiber damage

Info

Publication number: CN210775913U
Application number: CN201921998485.2U
Authority: CN
Inventors: 邹支农
Original assignee: Gaoan Tianfu Optoelectronic Technology Co ltd
Current assignee: Gaoan Tianfu Optoelectronic Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-06-16
Anticipated expiration: 2029-11-19

Abstract

The utility model relates to a prevent device of capillary tail optical fiber damage, including a tail optical fiber, the one end department of tail optical fiber is equipped with naked fibre core, the fibre core is through a glass apron and a glass V frid crimping, glass V frid top department is equipped with 1 at least V type groove, the fibre core sets up V type inslot. The utility model relates to a device that prevents capillary tail optical fiber damage has advantages such as prevent that optic fibre from damaging or optic fibre fracture.

Description

Device for preventing capillary tail fiber damage

Technical Field

The utility model relates to an optical fiber communication technical field, especially a prevent device of capillary tail optical fiber damage.

Background

The tail fiber is divided into multimode tail fiber and single-mode tail fiber. The multimode pigtail is orange, has the wavelength of 850nm and the transmission distance of 5Km, and is used for short-distance interconnection. The single-mode tail fiber is yellow, the wavelength is two, 1310nm and 1550nm, and the transmission distance is 10km and 40km respectively. The ITU-T international telecommunications union telecommunications standardization organization (ITU-T for ITU telecommunications standardization Sector) specifies three commonly used optical fibers: optical fiber compliant with the g.652 specification, optical fiber compliant with the g.653 specification, and optical fiber compliant with the g.655 specification.

The conventional capillary tail fiber has processing stress due to the capillary processing inner hole, the transition glue at the receiving part of the optical fiber and the capillary is sharp, and the internal stress is not easy to release after the assembly dispensing and baking, so that the optical fiber is damaged or even broken.

Therefore, a device for preventing the damage of the tail fiber of the capillary tube is developed to solve the defects.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art and providing a prevent device of capillary tail optical fiber damage, have and prevent advantages such as optic fibre damage or optic fibre fracture.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a prevent device of capillary tail optical fiber damage, includes a tail optical fiber, the one end department of tail optical fiber is equipped with naked fibre core, the fibre core is through a glass apron and a glass V frid crimping, glass V frid top department is equipped with 1 at least V type groove, the fibre core sets up V type inslot.

Preferably, the glass cover plate comprises a first fiber core inlet end, and an arc structure is arranged at the lower end of the first fiber core inlet end.

Preferably, the bottom angle of the V-shaped groove is 60 degrees.

Preferably, the glass V-groove plate includes a second core inlet end, the second core inlet end has a two-stage ladder structure, and an orthographic projection of the first core inlet end on the glass V-groove plate is not coincident with the second core inlet end.

Preferably, epoxy resin is arranged on the fiber core among the glass cover plate, the glass V-groove plate and the tail fiber, and the epoxy resin is bonded with the arc structure.

Preferably, an optical fiber assembly is arranged at one end of the tail fiber far away from the glass cover plate.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

prevent device of capillary tail optical fiber damage, the lower extreme department of first fibre core entry end is equipped with a circular arc structure and prevents that fibre core optic fibre from damaging or optic fibre fracture behind the bonding epoxy.

Drawings

FIG. 1 is a schematic structural diagram of a device for preventing a capillary tail fiber from being damaged according to the present invention;

fig. 2 is a sectional view of a-a in fig. 1 of the present invention;

FIG. 3 is an enlarged view of the point B in FIG. 1;

wherein: 10. an optical fiber array; 11. a glass cover plate; 110. a first core entrance end; 12. a glass V-groove plate; 120. a second core entrance end;

20. tail fiber; 21. a fiber core; 25. an optical fiber assembly;

40. and (3) epoxy resin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In fig. 1 to 3, an apparatus for preventing a capillary pigtail from being damaged includes a pigtail 20, a bare fiber core 21 is disposed at one end of the pigtail 20, and the fiber core 21 is crimped by a glass cover plate 11 and a glass V-groove plate 12. Transparent epoxy resin 40 is arranged on the fiber core 21 between the glass cover plate 11, the glass V-groove plate 12 and the tail fiber 20, and the epoxy resin 40 is bonded with the arc structure 111.

The top end of the glass V-groove plate 12 is provided with 1 or more V-shaped grooves 121, each V-shaped groove 121 is of an isosceles triangle structure, and the bottom angle of each V-shaped groove 121 is 60 degrees. The fiber core 21 is arranged in the V-shaped groove 121, and the V-shaped groove 121 and the glass cover plate 11 form an equilateral triangle structure. The pigtail 20, the glass cover plate 11 and a glass V-groove plate 12 are bonded by epoxy resin 40 to form the optical fiber array 10.

The glass cover plate 11 includes a first core entrance end 110. The lower end of the first fiber core inlet end 110 is provided with an arc structure 111, and the radius of the arc structure 111 is 2 mm.

The glass V-groove plate 12 includes a second core entrance end 120. The second core inlet end 120 is of a two-stage stepped structure, the top step is of an inclined plane structure, the V-shaped groove 121 is arranged at the top end of the inclined plane structure, the length of the glass V-groove plate 12 is greater than that of the glass cover plate 11, and the orthographic projection of the first core inlet end 110 on the glass V-groove plate 12 does not coincide with the second core inlet end 120.

The FA (Fiber Array) structure consists of 1 processed glass cover plate and a glass V-groove plate, has no internal processing stress, and has a smooth arc structure processed at the Fiber inlet end of the FA glass cover plate, thereby protecting the Fiber.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a prevent device of capillary tail optical fiber damage which characterized in that: including a tail optical fiber (20), the one end department of tail optical fiber (20) is equipped with naked fibre core (21), fibre core (21) are through a glass apron (11) and a glass V frid (12) crimping, glass V frid (12) top department is equipped with 1 at least V type groove (121), fibre core (21) set up in V type groove (121).

2. The apparatus for preventing damage to a fiber pigtail of claim 1, wherein the glass cover plate (11) comprises a first core entrance end (110), and a circular arc structure (111) is disposed at the lower end of the first core entrance end (110).

3. A device for protecting a capillary pigtail from damage according to claim 2, wherein the bottom angle of the V-groove (121) is 60 °.

4. The apparatus according to claim 3, wherein the glass V-groove plate (12) comprises a second core entrance end (120), the second core entrance end (120) has a two-step structure, and an orthographic projection of the first core entrance end (110) on the glass V-groove plate (12) is not coincident with the second core entrance end (120).

5. The device for preventing the damage of the capillary tail fiber according to claim 4, wherein the fiber core (21) between the glass cover plate (11), the glass V-groove plate (12) and the tail fiber (20) is provided with epoxy resin (40), and the epoxy resin (40) is bonded with the circular arc structure (111).

6. A device for preventing damage to a capillary pigtail according to claim 5, wherein a fiber assembly (25) is provided at the end of the pigtail (20) remote from the glass cover plate (11).