CN216210048U - High-water-pressure-resistant low-insertion-loss optical fiber contact element - Google Patents
High-water-pressure-resistant low-insertion-loss optical fiber contact element Download PDFInfo
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- CN216210048U CN216210048U CN202122388958.0U CN202122388958U CN216210048U CN 216210048 U CN216210048 U CN 216210048U CN 202122388958 U CN202122388958 U CN 202122388958U CN 216210048 U CN216210048 U CN 216210048U
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Abstract
The utility model relates to an optical fiber contact element with high water pressure resistance and low insertion loss, which comprises a ceramic ferrule and a contact element shell, wherein the front end of the contact element shell is provided with a metal flange plate, and the ceramic ferrule is assembled in an inner hole of the metal flange plate; the outer circle of the contact piece shell is provided with a sealing ring for realizing the sealing between the optical fiber contact piece and the connector shell; the rear end design of pottery lock pin has conical surface I and conical surface II, is provided with encapsulating cavity I and gradual change footpath cavity in the contact member casing, is equipped with conical surface III in the gradual change footpath cavity, realizes and strengthens the inside seal of optic fibre contact member through conical surface I, conical surface II and encapsulating are sealed, improves the reliability of the resistant high water pressure performance of optic fibre contact member through conical surface III. The utility model can ensure the high pressure resistant sealing function of the optical fiber contact element in the connector, and the inner part of the contact element can still play a sealing role even under the condition of failure of external sealing, thereby protecting the personal and property safety.
Description
Technical Field
The utility model relates to the technical field of connectors, in particular to an optical fiber contact element with high water pressure resistance and low insertion loss.
Background
In the field of deep sea connectors, optical fiber transmission has the characteristics of light weight, interference resistance and the like, and is widely applied. At present, each large manufacturer only realizes the 11000 m deep water sealing of the connector level, namely the external sealing of the connector, but the high water pressure resistance and low loss function of the core element-optical fiber contact element in the connector is not further researched, and the reliability and the safety of the connector product also have improved space.
Disclosure of Invention
The utility model provides an optical fiber contact element with high water pressure resistance and low insertion loss, which can ensure the high-pressure-resistant sealing function of the optical fiber contact element in a connector, and can still play a sealing role in the contact element even under the condition of failure of external sealing, thereby protecting the personal and property safety.
The optical fiber contact element with high water pressure resistance and low insertion loss comprises a ceramic ferrule and a contact element shell, wherein a metal flange plate is arranged at the front end of the contact element shell, an inner hole is formed in the metal flange plate, and the ceramic ferrule is assembled in the inner hole of the metal flange plate; the outer circle of the contact piece shell is provided with an installation groove, and the sealing ring is installed in the installation groove and used for realizing sealing between the optical fiber contact piece and the connector shell;
a glue filling cavity I is arranged in the contact element shell, a glue filling cavity II is arranged in the ceramic ferrule, a gradually-changing cavity is arranged between the glue filling cavity I and an inner hole of the metal flange plate, and a conical surface III is arranged in the gradually-changing cavity; the method comprises the steps of defining one end of a ceramic ferrule in a metal flange plate as a rear end, designing a conical surface I and a conical surface II at the rear end of the ceramic ferrule, assembling optical fibers and performing glue filling and sealing after the ceramic ferrule is assembled in the metal flange plate, further realizing and enhancing the internal sealing of an optical fiber contact element through the conical surface I, the conical surface II and the glue filling and sealing, and improving the reliability of the high water pressure resistance of the optical fiber contact element through the conical surface III.
Furthermore, the conical surface I inclines backwards towards the direction of the central hole of the ceramic ferrule along the outer wall of the ceramic ferrule, and the conical surface II inclines backwards towards the direction of the outer wall of the ceramic ferrule along the central hole of the ceramic ferrule.
Further, the tail ends of the conical surfaces I and II are mutually connected.
Furthermore, a plane (10) is arranged between the tail ends of the conical surfaces I and II.
Furthermore, the metal flange plate is also provided with a core adjusting key position for adjusting the direction of the optical fiber in the ceramic ferrule, so that the fiber core distance of the two optical fiber contact members is ensured to be minimum when the two optical fiber contact members are butted.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, the sealing ring and the inner potting adhesive are adopted, and the conical surface is designed at the right end of the ceramic ferrule for carrying out inner potting adhesive sealing, so that the inner sealing of the contact element is realized, and the inner part of the contact element still has high-pressure-resistant sealing performance even under the condition that the outer sealing of the connector fails, thereby ensuring the personal and property safety. The conical surface design at the right end of the ceramic ferrule can increase the glue filling area, further realize and enhance the internal sealing of the optical fiber contact element, and improve the reliability of the optical fiber fixation in the ceramic ferrule and the contact element shell. The conical surface III arranged in the tapered cavity can decompose the pressure of part of water on the internal pouring sealant, so that the reliability of the pouring sealant and the reliability of the high water pressure resistance of the optical fiber contact element are improved. The direction of the optical fiber in the ceramic ferrule is adjusted by setting the core adjusting key position, so that the fiber core distance of the two optical fiber contact members is ensured to be minimum when the two optical fiber contact members are butted, and the insertion loss of the connector can be reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a contact housing;
FIG. 3 is a cross-sectional view of the ferrule assembled within the contact housing;
fig. 4 is a schematic view of the utility model assembled in a connector housing.
The connector comprises a ceramic ferrule 1, a contact piece shell 2, a metal flange 3, an inner hole 4, a mounting groove 5, a sealing ring 6, a core adjusting key 7, a conical surface I8, a conical surface II 9, a conical surface II 10, a plane 11, a glue filling cavity I12, a glue filling cavity II 13, a tapered cavity 14, a connector shell 15 and a conical surface III.
Detailed Description
For a better understanding of the contents of the utility model, reference will now be made to the following examples and accompanying drawings which illustrate the utility model. The present embodiment is implemented based on the technology of the present invention, and a detailed implementation manner and operation steps are given, but the scope of the present invention is not limited to the following embodiments.
As shown in figure 1, the optical fiber contact element with high water pressure resistance and low insertion loss comprises a ceramic ferrule 1 and a contact element shell 2, wherein a metal flange 3 is arranged at the front end of the contact element shell, an inner hole 4 is formed in the metal flange, and the ceramic ferrule is assembled in the inner hole of the metal flange. The excircle of the contact piece shell is provided with a mounting groove 5, and a sealing ring 6 is mounted in the mounting groove and used for realizing sealing between the contact piece and the connector shell. The metal flange plate is provided with a core adjusting key position 7 which is in limit fit with the connector shell 14 to realize the function of adjusting the direction of the optical fiber in the ceramic ferrule, and the fiber core distance of the two optical fiber contact elements is ensured to be minimum when the two optical fiber contact elements are in butt joint, so that the insertion loss of the connector is reduced.
The method comprises the following steps of defining one end of a ceramic ferrule in a metal flange plate as a rear end, designing the rear end of the ceramic ferrule with two conical surfaces, marking as a conical surface I8 and a conical surface II 9, wherein the conical surface I inclines backwards along the outer wall of the ceramic ferrule towards the center hole of the ceramic ferrule, and the conical surface II inclines backwards along the center hole of the ceramic ferrule towards the outer wall of the ceramic ferrule. The ends of the conical surfaces I and II can be connected with each other, and a plane 10 can be arranged between the ends of the conical surfaces I and II.
Be provided with encapsulating cavity I11 in the contact casing, be provided with encapsulating cavity II 12 in the pottery lock pin, be provided with gradually reducing cavity 13 between encapsulating cavity I and the metal flange hole and be used for the encapsulating, be equipped with conical surface III 15 in this gradually reducing cavity 13. And after the ceramic ferrule is assembled in the metal flange plate, further assembling the optical fiber, and finally pouring glue for sealing. The tail ends of the conical surfaces I and II of the ceramic ferrule have a certain distance from the conical surface III 15 of the gradually-variable diameter cavity, so that the glue filling area can be increased, the internal sealing of the optical fiber contact element is further realized and enhanced, and the reliability of fixing the optical fiber in the ceramic ferrule and the contact element shell is improved. In addition, when water exerts pressure on the optical fiber contact element, the conical surface III can enable the contact element shell 2 to decompose part of the pressure of the pouring sealant, so that the reliability of the pouring sealant and the reliability of the high water pressure resistance performance of the optical fiber contact element are improved.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and the present invention may also have other embodiments according to the above structures and functions, and is not listed again. Therefore, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made within the technical scope of the present invention.
Claims (5)
1. The optical fiber contact element with high water pressure resistance and low insertion loss is characterized by comprising a ceramic ferrule (1) and a contact element shell (2), wherein a metal flange (3) is arranged at the front end of the contact element shell, an inner hole (4) is formed in the metal flange, and the ceramic ferrule is assembled in the inner hole of the metal flange; an installation groove (5) is formed in the excircle of the contact piece shell, and a sealing ring (6) is installed in the installation groove and used for sealing between the optical fiber contact piece and the connector shell (14);
a glue filling cavity I (11) is arranged in the contact piece shell, a glue filling cavity II (12) is arranged in the ceramic ferrule, a gradually-variable-diameter cavity (13) is arranged between the glue filling cavity I and an inner hole of the metal flange plate, and a conical surface III (15) is arranged in the gradually-variable-diameter cavity (13); the method comprises the steps of defining one end of a ceramic ferrule in a metal flange plate as a rear end, designing a conical surface I (8) and a conical surface II (9) at the rear end of the ceramic ferrule, assembling optical fibers and performing glue filling and sealing after the ceramic ferrule is assembled in the metal flange plate, realizing and enhancing internal sealing of an optical fiber contact element through the conical surface I, the conical surface II and the glue filling and sealing, and improving reliability of high water pressure resistance of the optical fiber contact element through the conical surface III.
2. The high hydraulic pressure resistant, low insertion loss fiber optic contact of claim 1, wherein the tapered surface I (8) slopes backward along the outer wall of the ferrule toward the ferrule center bore, and the tapered surface II (9) slopes backward along the ferrule center bore toward the ferrule outer wall.
3. The high hydraulic pressure resistant, low insertion loss optical fiber contact of claim 1 or 2, wherein the ends of taper i and taper ii meet each other.
4. The high hydraulic pressure resistant, low insertion loss optical fiber contact of claim 1 or 2, wherein a flat surface (10) is further provided between the ends of the tapered surfaces i and ii.
5. The high water pressure resistant low insertion loss optical fiber contact member according to claim 1 or 2, wherein the metal flange is further provided with a core adjusting key (7) for adjusting the direction of the optical fiber in the ferrule, so as to ensure the minimum fiber core distance when the two optical fiber contact members are butted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122388958.0U CN216210048U (en) | 2021-09-28 | 2021-09-28 | High-water-pressure-resistant low-insertion-loss optical fiber contact element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122388958.0U CN216210048U (en) | 2021-09-28 | 2021-09-28 | High-water-pressure-resistant low-insertion-loss optical fiber contact element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216210048U true CN216210048U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122388958.0U Active CN216210048U (en) | 2021-09-28 | 2021-09-28 | High-water-pressure-resistant low-insertion-loss optical fiber contact element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216210048U (en) |
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2021
- 2021-09-28 CN CN202122388958.0U patent/CN216210048U/en active Active
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