阅读说明：本技术 光纤连接器及其插芯部件 (Optical fiber connector and inserting core component thereof ) 是由 徐骏 郭会永 武学顺 张智宇 于 2018-12-21 设计创作，主要内容包括：本发明涉及一种光纤连接器及其插芯部件,光纤连接器用插芯部件包括两端均具有光纤穿孔的对接平台,对接平台上还设有供预埋光纤和外来光纤对应穿入的定位槽,插芯部件还包括将预埋光纤和外来光纤压装于定位槽内的压块以及为压块提供持续压紧力的压紧结构,所述压块的外部环套布置有用于密封压块与对接平台之间的邻界处的周向密封件。通过设置周向密封件能够防止匹配液由压块与对接平台之间的快速挥发,进而影响两个光纤对接时的光学性能。(The invention relates to an optical fiber connector and a ferrule part thereof, wherein the ferrule part for the optical fiber connector comprises a butt-joint platform with optical fiber through holes at two ends, a positioning groove for correspondingly penetrating a pre-embedded optical fiber and an external optical fiber is also arranged on the butt-joint platform, the ferrule part also comprises a pressing block for pressing the pre-embedded optical fiber and the external optical fiber into the positioning groove and a pressing structure for providing continuous pressing force for the pressing block, and a circumferential sealing element for sealing the adjacent boundary between the pressing block and the butt-joint platform is arranged on an outer ring sleeve of the pressing block. Through setting up circumference sealing member can prevent that matching liquid from volatilizing fast between briquetting and the butt joint platform, and then optical property when influencing two optic fibre butt joints.)

1. The utility model provides a lock pin part for optical fiber connector, includes that both ends all have the fenestrate butt joint platform of optic fibre, still are equipped with the constant head tank that supplies pre-buried optic fibre and external optic fibre to correspond to penetrate on the butt joint platform, and lock pin part still includes the briquetting of pressing in the constant head tank with pre-buried optic fibre and external optic fibre and provides the compact structure who lasts the packing force for the briquetting, its characterized in that: the ferrule assembly further includes a circumferential seal disposed circumferentially outwardly of the press block and configured to seal the press block to the abutment platform.

2. The ferrule member for an optical fiber connector according to claim 1, wherein: the circumferential sealing element is a sealing ring which is sealed with the circumferential surface of the pressing block and the end surface of the butt joint platform.

3. The ferrule member for an optical fiber connector according to claim 2, wherein: the butt joint platform comprises a main body part and a cushion block part protruding out of the main body part, a containing cavity used for containing matching fluid is formed by the main body part and the cushion block part, the adjacent boundary is formed between the end face of the cushion block part and the outer peripheral face of the pressing block, and the sealing ring is elastically pressed on the end face of the cushion block part.

4. The ferrule member for an optical fiber connector according to claim 1, 2 or 3, wherein: the compression structure comprises a U-shaped elastic sheet buckled on the butt joint platform, the U-shaped elastic sheet comprises two elastic clamping arms, the two elastic clamping arms are obliquely arranged to form a necking with a large upper part and a small lower part, and the butt joint platform is provided with an arc reversing surface which downwards pushes the elastic clamping arms when the two elastic clamping arms swing relatively.

5. The ferrule member for an optical fiber connector according to claim 4, wherein: the bottom edge of the U-shaped elastic sheet is fixedly connected with the pressing block or integrally formed.

6. The utility model provides an optical fiber connector, includes the casing and locates the lock pin part in the casing, the lock pin part includes that both ends all have the fenestrate butt joint platform of optic fibre, still is equipped with the constant head tank that supplies pre-buried optic fibre and external optic fibre to correspond to penetrate on the butt joint platform, and the lock pin part still includes the compact structure who lasts the packing force with pre-buried optic fibre and external optic fibre pressfitting in the briquetting of constant head tank and for the briquetting provides, its characterized in that: the ferrule assembly further includes a circumferential seal disposed circumferentially outwardly of the press block and configured to seal the press block to the abutment platform.

7. The fiber optic connector of claim 6, wherein: the circumferential sealing element is a sealing ring which is sealed with the circumferential surface of the pressing block and the end surface of the butt joint platform.

8. The fiber optic connector of claim 7, wherein: the butt joint platform comprises a main body part and a cushion block part protruding out of the main body part, a containing cavity used for containing matching fluid is formed by the main body part and the cushion block part, the adjacent boundary is formed between the end face of the cushion block part and the outer peripheral face of the pressing block, and the sealing ring is elastically pressed on the end face of the cushion block part.

9. The optical fiber connector according to claim 6, 7 or 8, wherein: the compression structure comprises a U-shaped elastic sheet buckled on the butt joint platform, the U-shaped elastic sheet comprises two elastic clamping arms, the two elastic clamping arms are obliquely arranged to form a necking with a large upper part and a small lower part, and the butt joint platform is provided with an arc reversing surface which downwards pushes the elastic clamping arms when the two elastic clamping arms swing relatively.

10. The fiber optic connector of claim 9, wherein: the bottom edge of the U-shaped elastic sheet is fixedly connected with the pressing block or integrally formed.

Technical Field

The invention relates to an optical fiber connector and a ferrule component thereof.

Background

The existing on-site wire-making optical fiber connector is divided into a through type and a pre-embedded type, the indexes of the through type on-site wire-making optical fiber connector are not stable enough due to the limitation of the prior art, and the application requirements are difficult to meet. The V groove or the C groove is formed in the butt joint platform, the other end of the embedded optical fiber is placed in the V groove or the C groove, during specific press fitting, the external optical fiber penetrates into the V groove or the C groove from another through hole of the butt joint platform and is in contact with the embedded optical fiber, the embedded optical fiber and the external optical fiber are compressed in the V groove or the C groove through the compression structure, and before the external optical fiber and the embedded optical fiber are in butt joint, optical performance of the external optical fiber and the embedded optical fiber during butt joint is improved through preset matching liquid on the butt joint platform.

The invention specification with the publication number being TW201416743A discloses an optical fiber connector structure, which comprises a butt joint platform, wherein a containing cavity capable of containing matching fluid is arranged on the butt joint platform, a positioning groove for placing butt joint ends of an external optical fiber and an embedded optical fiber is arranged at the bottom of the containing cavity, the optical fiber connector structure further comprises a pressing block for pressing the external optical fiber and the embedded optical fiber in the positioning groove, and further comprises a bundle sleeve sleeved outside the butt joint platform and the pressing block to provide continuous pressing acting force for the pressing block, and the butt joint ends of the two optical fibers are pressed in the positioning groove through the actions of the bundle sleeve and the pressing block.

Simultaneously, the utility model discloses a novel specification bulletin that open number is TWM486068U this discloses an optical fiber cable connecting device, including butt joint platform, be provided with the constant head tank that supplies the butt joint end of optic fibre to put into on butt joint platform, still including being used for compressing tightly the briquetting in the constant head tank with the butt joint end of optic fibre, still be provided with the clamp structure that can the chucking between butt joint platform and briquetting in the outside of briquetting, can provide lasting pressure acting force to the briquetting through the clamp structure.

Although the optical fiber connector manufactured on site in the prior art has various structural forms, a problem exists in general that no relevant structure for sealing the matching fluid exists, the matching fluid can be preset at a positioning groove when the equipment leaves a factory to provide optical performance during optical fiber butt joint, a gap with a certain distance can exist between a pressing block and a butt joint platform, the matching fluid is slow to volatilize, but the matching fluid still volatilizes from the gap along with the lapse of time, and along with the reduction of the matching fluid, the optical performance during optical fiber butt joint can be influenced during the butt joint of two optical fibers, and the service life of a product is influenced.

Disclosure of Invention

The invention aims to provide a ferrule component for an optical fiber connector, which aims to solve the technical problem that in the prior art, matching liquid is easy to volatilize rapidly in a gap between a pressing block and a butt joint platform to influence the optical performance of optical fibers in butt joint; an optical fiber connector using the ferrule member is also provided.

In order to achieve the purpose, the technical scheme of the ferrule component for the optical fiber connector is as follows: the utility model provides a lock pin part for optical fiber connector, includes that both ends all have the fenestrate butt joint platform of optic fibre, still are equipped with the constant head tank that supplies pre-buried optic fibre and external optic fibre to correspond to penetrate on the butt joint platform, and lock pin part still includes the briquetting of will pre-buried optic fibre and external optic fibre pressfitting in the constant head tank and provides the compact structure who lasts the packing force for the briquetting, and lock pin part still includes the ring cover arrange in the circumference outside of briquetting is used for the circumference sealing member of sealed briquetting and the adjacent border department of butt joint platform.

The invention has the beneficial effects that: the ferrule component for the optical fiber connector comprises a butt joint platform, wherein a positioning groove is formed in the butt joint platform, a pressing block for pressing the embedded optical fiber and the external optical fiber in the positioning groove and a pressing structure for providing continuous acting force for the pressing block are further included, a circumferential sealing element is annularly sleeved outside the pressing block, and the circumferential sealing element can seal the adjacent boundary between the pressing block and the butt joint platform. According to the invention, the rapid volatilization of the matching fluid between the pressing block and the butt joint platform can be prevented by arranging the circumferential sealing element, so that the optical performance of the butt joint of the two optical fibers is further influenced.

The circumferential sealing element is a sealing ring which is sealed with the circumferential surface of the pressing block and the end surface of the butt joint platform.

The butt joint platform comprises a main body part and a cushion block part protruding out of the main body part, a containing cavity used for containing matching fluid is formed by the main body part and the cushion block part, the adjacent boundary is formed between the end face of the cushion block part and the outer peripheral face of the pressing block, and the sealing ring is elastically pressed on the end face of the cushion block part.

The compression structure comprises a U-shaped elastic sheet buckled on the butt joint platform, the U-shaped elastic sheet comprises two elastic clamping arms, the two elastic clamping arms are obliquely arranged to form a necking with a large upper part and a small lower part, and the butt joint platform is provided with an arc reversing surface which downwards pushes the elastic clamping arms when the two elastic clamping arms swing relatively.

The bottom edge of the U-shaped elastic sheet is fixedly connected with the pressing block or integrally formed.

The technical scheme of the optical fiber connector is as follows: the utility model provides an optical fiber connector, includes the casing and locates the lock pin part in the casing, the lock pin part all has the fenestrate butt joint platform of optic fibre including both ends, still is equipped with the constant head tank that supplies pre-buried optic fibre and external optic fibre to correspond to penetrate on the butt joint platform, and the lock pin part still includes the briquetting of pressing in the constant head tank with pre-buried optic fibre and external optic fibre and provides the compact structure who lasts the packing force for the briquetting, and the lock pin part still includes that the ring cover arranges in the circumference outside of briquetting is used for the circumference sealing member of sealed briquetting and butt joint platform adjacent boundary department.

The circumferential sealing element is a sealing ring which is sealed with the circumferential surface of the pressing block and the end surface of the butt joint platform.

The butt joint platform comprises a main body part and a cushion block part protruding out of the main body part, a containing cavity used for containing matching fluid is formed by the main body part and the cushion block part, the adjacent boundary is formed between the end face of the cushion block part and the outer peripheral face of the pressing block, and the sealing ring is elastically pressed on the end face of the cushion block part.

The compression structure comprises a U-shaped elastic sheet buckled on the butt joint platform, the U-shaped elastic sheet comprises two elastic clamping arms, the two elastic clamping arms are obliquely arranged to form a necking with a large upper part and a small lower part, and the butt joint platform is provided with an arc reversing surface which downwards pushes the elastic clamping arms when the two elastic clamping arms swing relatively.

The bottom edge of the U-shaped elastic sheet is fixedly connected with the pressing block or integrally formed.

And an ejector block through hole for the ejector block to extend into so as to push the U-shaped elastic sheet upwards is arranged below the core inserting component on the shell.

Drawings

FIG. 1 is a schematic view of an embodiment of a fiber optic connector of the present invention;

FIG. 2 is a schematic view of the insert member of FIG. 1;

FIG. 3 is a cross-sectional view of the front view of FIG. 2;

FIG. 4 is a left side view of the ferrule assembly of FIG. 1 without a foreign fiber press-fit;

fig. 5 is a left side view of the ferrule assembly of fig. 1 with a foreign optical fiber press-fitted therein.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In the embodiment of the optical fiber connector of the present invention, as shown in fig. 1 to 5, the optical fiber connector includes a housing 1 and a ferrule member 2 disposed in the housing 1. The ferrule component 2 comprises a butt joint platform which is a ceramic platform, two optical fiber through holes are respectively arranged at two ends of the ceramic platform, a pre-embedded optical fiber 27 is contained in one optical fiber through hole, the other optical fiber through hole is used for allowing an external optical fiber to penetrate, a notch is arranged on the butt joint platform, a positioning groove 23 for connecting the two optical fiber through holes is formed in the notch, and the positioning groove 23 is a V-shaped groove or a C-shaped groove with an opening at the upper end. The docking platform comprises a main body part 21 and cushion blocks 25 arranged around the positioning groove 23 at intervals, a containing cavity capable of containing the matching fluid 4 is formed between the cushion blocks 25 and the main body part 21, and the matching fluid is contained in the containing cavity when the docking platform leaves a factory. The ferrule member also includes a press piece 24 movably fitted over the body portion 21, the press piece 24 being extendable into the accommodation chamber.

In this embodiment, the notch of the main body 21 is semicircular or elliptical, a U-shaped elastic sheet 22 is fastened to the outside of the main body 21, wherein the U-shaped elastic sheet 22 is made of metal, the U-shaped elastic sheet 22 is fastened to the main body 21 downward, and two elastic clamping arms of the U-shaped elastic sheet 22 are clamped to the main body 21. As can be seen from the figure, the two elastic clamping arms are obliquely arranged, so that the lower end opening of the U-shaped elastic sheet is of a necking structure, and the bottom edge of the U-shaped elastic sheet 22 is pressed on the cushion block 25. Because main part 21 breach department is semicircle or oval, can make two elastic clamping arm of U-shaped shell fragment 22 move down when drawing close each other, changes to the application of force through the outside arcwall face of main part 21, makes the base of U-shaped shell fragment 22 exert lasting pressure effort to cushion 25. In this embodiment, the surface of the semicircular or elliptical docking platform contacting the elastic clamp arm is an arc reversing surface.

A sealing ring 26 is arranged between the bottom edge of the U-shaped elastic sheet 22 and the cushion block 25 in a pressing mode, the sealing ring 26 is arranged around the pressing block 24 in a circle mode, the U-shaped elastic sheet presses the sealing ring 26 on the cushion block 25 and enables the sealing ring 26 to radially expand, the sealing ring 26 can be completely matched with the upper end face of the cushion block 25, the outer peripheral face of the pressing block 24 and the bottom edge of the U-shaped elastic sheet 22 in a sealing mode, and therefore volatilization and dissipation of the matching liquid 4 are effectively prevented.

In this embodiment, the pressing block 24 is fixedly connected with the U-shaped elastic piece 22, or may be integrally formed.

In the invention, the top block through hole is arranged on the part of the shell 1 corresponding to the ferrule component, when the optical fiber connector is manufactured on site, the U-shaped elastic sheet 22 is pushed upwards through the top block 3, so that the U-shaped elastic sheet 22 drives the pressing block 24 to move upwards together, an external optical fiber penetrates into the positioning groove 23 through the optical fiber through hole and is contacted with an embedded optical fiber, then the top block 3 is removed, the U-shaped elastic sheet 22 automatically recovers downwards, the sealing ring 26 and the pressing block 24 are both pressed on the main body part 21 downwards, the external optical fiber and the embedded optical fiber are pressed during pressing, accurate butt joint of the external optical fiber and the embedded optical fiber can be realized through the positioning groove 23, and the matching fluid can ensure the optical performance of the embedded optical fiber and the external optical fiber during butt joint. After the sealing ring is added, the sealing ring can isolate the connection between the matching fluid and the outside, effectively prevents the volatilization of the matching fluid, and prolongs the service life of the optical fiber connector.

In other embodiments, if the receiving cavity is not formed in the docking platform, or the receiving cavity is embedded in the docking platform, the sealing ring is directly pressed on the main body portion.

In this embodiment, the U-shaped spring plate constitutes the compression structure, and in other embodiments, the compression structure may be in the manner as in the two references cited in the background art.

In this embodiment, be the adjacent border department of briquetting and butt joint platform between briquetting peripheral surface and the cushion up end, set up the sealing washer that forms circumferential sealing spare here, realize sealed to adjacent border department, in other embodiments, circumferential sealing spare can be for cushion or adhesive tape etc..

In this embodiment, the cushion block constitutes the cushion block portion, in other embodiments, an annular groove may be formed in an inner wall of the cushion block portion, a circumferential sealing member is disposed in the annular groove, the circumferential sealing member seals the pressing block and the cushion block portion simultaneously when the pressing block extends into the cushion block portion, and at this time, a boundary portion between the pressing block and the cushion block portion is an adjacent boundary between the pressing block and the docking platform.

In the specific embodiment of the ferrule member for an optical fiber connector according to the present invention, the structure of the ferrule member is the same as that in the above embodiments, and details thereof are not repeated.