CN214151133U - Ferrule fixing piece for connecting optical fiber ferrule and lens adapter and optical module - Google Patents
Ferrule fixing piece for connecting optical fiber ferrule and lens adapter and optical module Download PDFInfo
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- CN214151133U CN214151133U CN202120371737.XU CN202120371737U CN214151133U CN 214151133 U CN214151133 U CN 214151133U CN 202120371737 U CN202120371737 U CN 202120371737U CN 214151133 U CN214151133 U CN 214151133U
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- lens adapter
- lock pin
- optical fiber
- ferrule
- optic fibre
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Abstract
The utility model discloses a lock pin mounting and optical module of connecting optic fibre lock pin and lens adapter belongs to optical communication product field, the lock pin mounting is the joint optic fibre lock pin with the elasticity buckle of lens adapter, wherein, elasticity buckle with the one end of optic fibre lock pin joint has elastomeric element, elasticity buckle with the other end of lens adapter joint also has elastomeric element. Because the elastic component is designed on the ferrule fixing piece, the elastic force of the elastic component enables the optical fiber ferrule and the lens adapter to be tightly attached together, even if the two attaching surfaces are separated (in a micro distance) due to vibration, the elastic force of the elastic component enables the optical fiber ferrule and the end face of the lens adapter to be attached again, and the purpose that the coupling efficiency of an optical signal to an optical fiber is not reduced is achieved.
Description
Technical Field
The utility model belongs to the optical communication product field, more specifically relates to a lock pin mounting and optical module of connecting optic fibre lock pin and lens adapter.
Background
Under the large environment of building 5G systems worldwide, the demand of optical networks and data systems will increase sharply, and the system building of data centers will also increase increasingly as the core part of the optical networks and data systems. The SFP28 AOC, as a conventional optical module type, has features of miniaturization, hot plugging, high speed, and high stability, and is applied in a large range in a data center. And the demand for SFP28 AOC will continue to flourish.
Therefore, all domestic and international large optical module generation enterprises are developing their SFP28 AOC products. There are many enterprises already put into production. However, in the existing solutions, there are defects of coupling and fixing the lens adapter and the optical fiber ferrule, which mainly appear in the following two points:
(1) the lens adapter and fiber stub are not fixed: the optical fiber insertion core and the lens adapter are in a free separation state, although the optical fiber insertion core is inserted into the lens adapter during assembly, the end face of the insertion core is contacted with one structural surface of the lens adapter, and the coupling efficiency of an optical signal entering the optical fiber meets the requirement at the moment, the two surfaces can be separated during transportation and use, the coupling efficiency of the optical signal entering the optical fiber is changed, the product performance and reliability are seriously influenced, and the fault is random, uncontrollable and unpredictable.
(2) The lens adapter and the optical fiber inserting core are fixed by glue, and the optical fiber inserting core and the lens adapter are adhered together by glue on the basis of the scheme (1). But the processing technology of the scheme is more complex: the glue fixing process flow comprises the following steps: UV glue point, ultraviolet irradiation, heat curing glue point and high-temperature curing, wherein the curing temperature of the heat curing glue is 85-110 ℃, the curing time is about 1 hour, the process is complex, the consumed time is long, and the production cost is increased. Inconvenient maintenance: because the optical fiber inserting core and the lens adapter are fixed by glue, and the lens adapter is fixed on the PCB, once the PCB has a functional fault, the whole optical fiber connecting the optical modules at the two ends can be scrapped together, if the optical fiber has a fault, the PCBs at the two ends can be reported together, the optical fiber inserting core and the lens adapter cannot be replaced or maintained, and the production risk is higher.
SUMMERY OF THE UTILITY MODEL
To the above defect or the improvement demand of prior art, the utility model provides a lock pin mounting and the optical module of connecting optic fibre lock pin and lens adapter both can realize that optic fibre lock pin and lens adapter's good coupling is fixed, can simplify production process flow again, make things convenient for the product maintenance.
In order to achieve the above object, according to an aspect of the present invention, there is provided a ferrule fixing member for connecting an optical fiber ferrule and a lens adapter, the ferrule fixing member is a joint between the optical fiber ferrule and an elastic buckle of the lens adapter, wherein the elastic buckle has an elastic member at one end of the optical fiber ferrule joint, and the elastic buckle has an elastic member at the other end of the lens adapter joint.
In some optional embodiments, the elastic buckle includes a body, the body has a first clamping groove for clamping the optical fiber ferrule and a second clamping groove for clamping the lens adapter, one surface of the first clamping groove in contact with the end surface of the optical fiber ferrule is of a spring structure, and one surface of the second clamping groove in contact with the end surface of the lens adapter is of a spring structure.
In some alternative embodiments, the resilient catch is located within a cavity formed by a housing structure that is a housing that secures the fiber stub and the lens adapter.
According to the utility model discloses an on the other hand provides an optical module, including the lock pin mounting, the lock pin mounting is the joint the optic fibre lock pin with the elastic buckle of lens adapter, wherein, elastic buckle with the one end of optic fibre lock pin joint has elastomeric element, elastic buckle with the other end of lens adapter joint also has elastomeric element.
In some optional embodiments, the elastic buckle includes a body, the body has a first clamping groove for clamping the optical fiber ferrule and a second clamping groove for clamping the lens adapter, one surface of the first clamping groove in contact with the end surface of the optical fiber ferrule is of a spring structure, and one surface of the second clamping groove in contact with the end surface of the lens adapter is of a spring structure.
In some alternative embodiments, the resilient catch is located within a cavity formed by the housing structure of the light module.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
the utility model discloses a lock pin mounting is in the same place optic fibre lock pin and lens adapter are fixed, because of the design has elastomeric element on the lock pin mounting, elastomeric element's elasticity lets optic fibre lock pin and lens adapter hug closely together, even if vibrate and let two binding face separation (small distance), elastomeric element's elasticity can make optic fibre lock pin and lens adapter terminal surface laminating again, reaches the purpose that coupling efficiency in the optical signal to optic fibre does not reduce.
Drawings
Fig. 1 is a practical structure diagram of a product provided by an embodiment of the present invention;
fig. 2 is an actual explosion diagram of a product provided by the embodiment of the present invention;
fig. 3 is a schematic diagram of a product according to an embodiment of the present invention;
fig. 4 is a simulation diagram of an appearance structure of a ferrule fixing member according to an embodiment of the present invention;
fig. 5 is an exploded view of an optical module including a ferrule holder according to an embodiment of the present invention;
wherein, 1 is the plastics stretching strap, 2 is the panel beating apron, 3 is the spring, 4 is the upper cover, 5 is the lens adapter, 6 is the shell, 7 is the lock pin mounting, 8 is the optic fibre lock pin, 9 is panel beating ground connection spare, 10 is the screw, 71 is first draw-in groove, 72 is the second draw-in groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
In the present embodiment, the terms "first", "second", and the like are used for distinguishing different objects, and are not used for describing a specific order or sequence.
The utility model relates to a novel optical module (like SFP28 AOC)'s structural scheme specifically include the fixed scheme of lens adapter and optic fibre lock pin coupling. As shown in fig. 1, the ferrule holder is clamped to the optical fiber ferrule and the lens adapter during assembly, so that the installation method is simple and the production process is simple. As shown in fig. 2, the ferrule holder can be disassembled again, thereby facilitating maintenance and secondary assembly.
Specifically, the ferrule fixing member is an elastic buckle for clamping the optical fiber ferrule and the lens adapter, wherein an elastic part is arranged at one end of the elastic buckle, which is clamped with the optical fiber ferrule, and an elastic part is arranged at the other end of the elastic buckle, which is clamped with the lens adapter.
In the embodiment of the present invention, as shown in fig. 3 and 4, the elastic buckle includes a body, the body has a first clamping groove 71 for clamping the optical fiber ferrule and a second clamping groove 72 for clamping the lens adapter, the first clamping groove 71 is of a spring structure with the end face of the optical fiber ferrule, and the second clamping groove 72 is of a spring structure with the end face of the lens adapter.
The embodiment of the utility model provides an in, elasticity buckle is located the cavity that shell structure formed, and shell structure is the shell of fixed optic fibre lock pin and lens adapter.
The embodiment of the utility model provides an in, above-mentioned lock pin mounting is arranged in connecting optic fibre lock pin and the lens adapter in the optical module.
The lens of the TX transmitting end and the lens of the RX receiving end have little difference in relative position when being coupled with the PCB.
The utility model discloses a lock pin mounting of TX end and RX end is independent components of a whole that can function independently structure, even if the lens coupling position of above-mentioned TX transmitting terminal and RX receiving terminal differs, independent lock pin mounting also can make TX transmitting terminal and RX receiving terminal can both realize the good contact of optic fibre lock pin and lens adapter, guarantees the coupling effect.
The utility model provides a lock pin mounting only has the interaction force between optic fibre lock pin and lens adapter, and the shell structure of optical module is independent, only exists in a cavity that forms with shell structure, in the restriction space in the cavity that the shell formed, and is free state. The cavity only protects the ferrule holder for easy installation during assembly. The elastic sheet is not dropped in the large vibration.
As shown in fig. 5, taking SFP28 AOC optical module as an example, the structural design scheme of the ferrule fixing member of the present invention is as follows: the optical fiber connector comprises a plastic pull belt 1, a sheet metal cover plate 2, a spring 3, an upper cover 4, a lens adapter 5, a shell 6, a ferrule fixing piece 7, an optical fiber ferrule 8, a sheet metal grounding piece 9 and a screw 10;
the plastic pull belt 1, the metal plate cover plate 2 and the spring 3 are assembled on the upper cover 4 together to form an unlocking reset structure;
the ferrule fixing member 7 fixes the lens adapter 5 and the optical fiber ferrule 8 together;
the upper cover 4 and the shell 6 form a cavity, and the ferrule fixing piece 7, the lens adapter 5 and the optical fiber ferrule 8 are fixed in the cavity;
the sheet metal grounding part 9 is assembled outside an assembly body formed by the shell 6 and the upper cover 4;
screws 10 fix the housing 6 and the upper cover 4.
The embodiment of the utility model provides an in, the shell fragment of lock pin mounting designs concrete structure size data through atress and deformation emulation, reaches the deflection of designing requirement and the elasticity of production, reaches the pressure range that LC fiber interface required, and this elasticity can keep optic fibre lock pin and the good contact coupling of lens adapter, can not injure optic fibre lock pin terminal surface and lens optical end face again.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a connect lock pin mounting of optic fibre lock pin and lens adapter which characterized in that, the lock pin mounting is the joint optic fibre lock pin with the elasticity buckle of lens adapter, wherein, elasticity buckle with the one end of optic fibre lock pin joint has elastomeric element, elasticity buckle with the other end of lens adapter joint also has elastomeric element.
2. The ferrule holder according to claim 1, wherein the elastic clip includes a body, the body has a first clip groove for clipping the optical fiber ferrule and a second clip groove for clipping the lens adapter, one surface of the first clip groove contacting with the end surface of the optical fiber ferrule is a spring structure, and one surface of the second clip groove contacting with the end surface of the lens adapter is a spring structure.
3. A ferrule holder according to claim 1 or 2, wherein the resilient catch is located within a cavity formed by a housing structure, the housing structure being a housing that holds the fiber ferrule and the lens adapter.
4. The utility model provides an optical module, its characterized in that, includes the lock pin mounting, the lock pin mounting is the joint optic fibre lock pin with the elasticity buckle of lens adapter, wherein, elasticity buckle with the one end of optic fibre lock pin joint has elastomeric element, elasticity buckle with the other end of lens adapter joint also has elastomeric element.
5. The optical module according to claim 4, wherein the elastic clip comprises a body, the body has a first clip groove for clipping the optical fiber ferrule and a second clip groove for clipping the lens adapter, one surface of the first clip groove contacting with the end surface of the optical fiber ferrule is of a spring structure, and one surface of the second clip groove contacting with the end surface of the lens adapter is of a spring structure.
6. The optical module according to claim 4 or 5, wherein the resilient catch is located within a cavity formed by a housing structure of the optical module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120371737.XU CN214151133U (en) | 2021-02-07 | 2021-02-07 | Ferrule fixing piece for connecting optical fiber ferrule and lens adapter and optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120371737.XU CN214151133U (en) | 2021-02-07 | 2021-02-07 | Ferrule fixing piece for connecting optical fiber ferrule and lens adapter and optical module |
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| Publication Number | Publication Date |
|---|---|
| CN214151133U true CN214151133U (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120371737.XU Active CN214151133U (en) | 2021-02-07 | 2021-02-07 | Ferrule fixing piece for connecting optical fiber ferrule and lens adapter and optical module |
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| CN (1) | CN214151133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023201908A1 (en) * | 2022-04-21 | 2023-10-26 | 武汉光迅科技股份有限公司 | Optical element fixation structure |
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2021
- 2021-02-07 CN CN202120371737.XU patent/CN214151133U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023201908A1 (en) * | 2022-04-21 | 2023-10-26 | 武汉光迅科技股份有限公司 | Optical element fixation structure |
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