CN102879863B - Adapter and the joints of optical fibre - Google Patents

Abstract

The present invention relates to a kind of adapter, it is for detachably coordinating with optical element, this adapter includes the first mating surface and the second mating surface that are oppositely arranged, wherein, this first mating surface is provided with the first location structure and the first lens, this second mating surface is provided with the second location structure and the second lens, this first location structure is for detachably coordinating with the first optical element, this second location structure is for detachably coordinating with the second optical element, the optical axis of these first lens and these the second lens overlaps, these first lens of optical signals input this adapter and export via these second lens。The invention still further relates to a kind of joints of optical fibre。

Description

Adapters and Fiber Connectors

technical field

The invention relates to an adapter and an optical fiber connector.

Background technique

The USB data transmission technology has been widely used, and USB coupling connectors of different technical standards have different data transmission rates. The current mainstream USB2.0 products in the market have a transfer rate of about 500MB/Sec, and the transfer rate of the next-generation product USB3.0 reaches 3-5G/Sec. The transmission media of these two products are metal wire transmission. In order to meet higher transmission requirements, fiber-coupled connectors with higher data transmission rates have emerged.

The currently used optical fiber connectors generally include a male end and a female end that are mated with each other. connect.

However, during use, due to various needs, the male end and the female end of the optical fiber connector will often be plugged and unplugged. If the connection structure is worn out, the positioning accuracy between the male end and the female end will be affected, thereby affecting the coupling accuracy of the optical signal of the optical fiber connector.

Contents of the invention

In view of this, it is necessary to provide an adapter and an optical fiber connector that can solve the above problems.

A fiber optic connector, which includes: a coupling portion with a coupling surface, the coupling portion includes an optical fiber and a first lens, the first lens is arranged on the coupling surface and optically coupled with the optical fiber; an adapter portion, which is connected to the optical fiber The coupling part is detachably connected, and the transfer part includes a second mating surface and a first mating surface cooperating with the coupling surface, the second mating surface is opposite to the first mating surface, and the first mating surface is provided with A second lens corresponding to the first lens, a third lens corresponding to the second lens is arranged on the second mating surface, the optical axes of the first lens, the second lens and the third lens coincide with each other, The optical signal input by the optical fiber is output through the first lens, the second lens and the third lens in sequence, a first positioning structure is provided on the coupling surface, and a positioning structure compatible with the first positioning structure is provided on the first mating surface. The second positioning structure that cooperates with each other, the coupling part is detachably fixed together with the transfer part through the first and second positioning structures that cooperate with each other, the first positioning structure is a positioning column, and the second positioning structure is Locating slot.

An optical fiber connector comprising: a male end comprising a first coupling portion having a first coupling surface and a first transition portion detachably connected to the first coupling portion, the first coupling portion comprising a first optical fiber And a first lens arranged on the first coupling surface and optically coupled with the first optical fiber, the first transition part includes a second matching surface and a first matching surface that cooperates with the first coupling surface, the first Two mating surfaces are arranged opposite to the first mating surface, a second lens corresponding to the first lens is arranged on the first mating surface, and a second lens corresponding to the second lens is arranged on the second mating surface The third lens, the optical axes of the first lens, the second lens and the third lens coincide with each other; the female end, which includes a second coupling part having a second coupling surface and a second coupling part detachably connected to the second coupling part An adapter portion, the second adapter portion includes a third mating surface and a fourth mating surface oppositely arranged, the third mating surface is used to cooperate with the second mating surface of the male end, and the third mating surface is provided with A fourth lens one-to-one corresponding to the third lens, a fifth lens one-to-one corresponding to the fourth lens is provided on the fourth mating surface, the second coupling part includes a second optical fiber and is arranged on the second coupling The sixth lens on the surface and optically coupled with the second optical fiber, the second coupling surface cooperates with the fourth matching surface, the sixth lens corresponds to the fifth lens one by one, the fourth lens, the fifth lens and the optical axes of the sixth lens coincide with each other, and the optical signal output by the first optical fiber enters the second lens through the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens in sequence optical fiber for transmission, the first coupling surface is provided with a first positioning structure, the first mating surface is provided with a second positioning structure corresponding to the first positioning structure, the first coupling part and the first transition part Through the detachable connection of the first and second positioning structures, the second matching surface is provided with a third positioning structure, and the third matching surface is provided with a fourth positioning structure corresponding to the third positioning structure. The end and the female end cooperate with each other through the third and fourth positioning structures, the fourth matching surface is provided with a fifth positioning structure, and the second coupling surface is provided with a sixth positioning structure corresponding to the fifth positioning structure. structure, the second coupling part and the second transfer part are detachably connected through the fifth and sixth positioning structures, the first, third and fifth positioning structures are all positioning column structures, and the second and fourth And the sixth positioning structure is a positioning groove that is plugged and matched with the positioning column structure.

Compared with the prior art, through the above-mentioned design, the present invention can realize that when the optical coupling accuracy decreases due to the wear of the positioning structure between the male end and the female end during the use of the optical fiber connector, only The optical positioning accuracy of the optical fiber connector can be restored by replacing the connecting part of the male end and/or the female end, which avoids the need to replace the entire male end after the optical coupling accuracy decreases due to the wear and tear of the positioning structure in the prior art. Only the end or the female end can restore the optical coupling accuracy, which greatly improves the performance of the optical fiber connector and reduces the waste of resources.

Description of drawings

Fig. 1 is a schematic structural diagram of an adapter provided by a first embodiment of the present invention.

FIG. 2 is an exploded schematic diagram of the structure of the optical fiber connector provided by the second embodiment of the present invention, which includes a male end and a female end.

FIG. 3 is a schematic diagram of the assembled male end and the female end shown in FIG. 2 .

Description of main component symbols

Adapter 100

Ontology 10

First mating surface 11

Second mating surface 12

First positioning structure 111

first lens 112

Second positioning structure 121

second lens 122

Fiber optic connector 400

male end 200

first coupling part 210

first coupling surface 211

first optical fiber 260

The first socket part 212

first lens 213

First transfer part 220

First bonding surface 221

The second socket part 222

second lens 223

Second bonding surface 225

The third socket part 226

third lens 227

Receptacle 300

Second adapter part 320

The third mating surface 321

Fourth socket part 322

Fourth lens 323

Fourth mating surface 325

The fifth socket part 326

fifth lens 327

second coupling part 310

second coupling surface 311

The sixth socket part 312

sixth lens 313

second optical fiber 360

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Please refer to Fig. 1, the adapter 100 provided by the first embodiment of the present invention has a substantially square body 10, the body 10 has a first mating surface 11 and a second mating surface 12, the first mating surface 11 is opposite to the second mating surface 12 .

A first positioning structure 111 and a first lens 112 integrally formed with the body 10 are disposed on the first mating surface 11 .

The first positioning structure 111 is used for detachable cooperation with a first optical element (not shown in the figure) so that the adapter 100 and the first optical element are coupled and fixed.

The first lens 112 is used for receiving and aggregating the optical signal delivered by the first optical element.

In this embodiment, the first positioning structure 111 is a groove recessed on the first mating surface 11 , and the first positioning structure 111 is symmetrically disposed on both sides of the first lens 112 .

A second positioning structure 121 and a second lens 122 integrally formed with the body 10 are disposed on the second mating surface 12 .

The second positioning structure 121 is used for detachable cooperation with a second optical component (not shown in the figure) so that the adapter 100 and the second optical component are fixed in cooperation with each other.

The second lens 122 corresponds to the first lens 112 one by one, and the optical axis of the second lens 122 coincides with the optical axis of the first lens 112 . The second lens 122 is used for converging the optical signal input into the adapter 100 through the first lens 112 twice and outputting it to the second optical element.

In this embodiment, the second positioning structure 121 is a positioning post structure projecting on the second matching surface 12 , and the second positioning structure 121 is symmetrically arranged on both sides of the second lens 122 .

It can be understood that the first positioning structure 111 and the second positioning structure 121 provided on the first mating surface 11 and the second mating surface 12 are not limited to the structure of the groove or the positioning column, which can also be other structures that can To achieve a detachable positioning structure, as long as the adapter 100 can be detachably connected with the first optical element and the second optical element, and the optical signal emitted by the first optical element can pass through the adapter 100 smoothly. Any detachable fixing structure reaching the second optical element can be applied to the present invention.

When the adapter is in use: In terms of structure, the adapter 100 is detachably connected to the first optical element through its first positioning structure 111, and is mutually detachable to the second optical element through its second positioning structure 121. Disconnect the connection, while the first lens 112 of the adapter 100 is optically coupled to the first optical element, and the second lens 122 is optically coupled to the second optical element; in terms of optical signal transmission, the first optical element transmits The optical signal enters the adapter 100 through the first lens 112 optically coupled thereto, the first lens 112 converges the optical signal and sends it to the second lens 122, and the second lens 122 transmits the optical signal After performing the second convergence, it is sent to the second optical element optically coupled with the second lens 122, thereby realizing the connection of optical signals.

Please refer to FIG. 2 and FIG. 3 together. The second embodiment of the present invention also provides an optical fiber connector 400 using the above-mentioned adapter, which includes a male end 200 and a female end 300 .

The male end 200 includes a first coupling portion 210 and a first adapter portion 220 detachably connected to the first coupling portion 210 .

The first coupling part 210 includes a first optical fiber 260 and a first coupling surface 211 corresponding to the coupling of the first optical fiber 260, and a first insertion part 212 and a first lens 213 are arranged on the first coupling surface 211. The first lens 213 is optically coupled to the first optical fiber 260 for converging and transmitting the optical signal input from the first optical fiber 260 to the outside.

The first transfer portion 220 has a first coupling surface 221 and a second coupling surface 225 opposite to each other, wherein the first coupling surface 221 is opposite to the first coupling surface 211 for cooperating with the first coupling surface 211 .

A second insertion portion 222 and a second lens 223 integrally formed with the first transfer portion 220 are disposed on the first joint surface 221 .

The second socket part 222 corresponds to the first socket part 212 one by one, and is used for plugging and matching with the first socket part 212 so that the first adapter part 220 and the first coupling part 210 can be connected. The disassembled ones are fixed together.

In this embodiment, the first insertion part 212 is a positioning column protruding on the first coupling surface 211, and the second insertion part 222 is a positioning groove recessed on the first coupling surface 221. The first transfer portion 220 is detachably and fixedly connected to the first coupling portion 210 through the corresponding positioning posts and positioning groove structures.

The second lens 223 is in one-to-one correspondence with the first lens 213 and is optically coupled. The optical signal emitted by the first optical fiber 260 is transmitted to the second lens 223 through the first lens 213 and converged by the second lens 223. Then enter the first transition part 220 .

A third insertion portion 226 and a third lens 227 integrally formed with the first transfer portion 220 are disposed on the second joint surface 225 .

The third plug part 226 is used to plug and cooperate with the female end 300 to realize the transmission of optical signals, the third lens 227 is coupled with the second lens 223 one by one, and the third lens 227, the second lens 227 The optical axes of the lens 223 and the first lens 213 coincide with each other, and the optical signal incident from the first optical fiber 260 passes through the first lens 213, the second lens 223 and the third lens 227 in sequence, and then is emitted from the male end 200 to the Female end 300.

The structure of the female end 300 is the same or similar to that of the male end 200 , and the female end 300 includes a second coupling portion 310 and a second adapter portion 320 detachably matched with the second coupling portion 310 .

The second adapter portion 320 includes a third mating surface 321 and a fourth mating surface 325 oppositely disposed, wherein the third mating surface 321 is used for plugging and mating with the male end 200 to realize optical signal transmission. The four matching surfaces 325 are used to cooperate with the second coupling portion 310 .

A fourth insertion portion 322 and a fourth lens 323 integrally formed with the second adapter portion 320 are disposed on the third mating surface 321 .

The fourth plug-in portion 322 corresponds to the third plug-in portion 226 one by one, and is used for plug-fitting with the third plug-in portion 226 so as to fix and fit the male end 200 and the female end 300 , thereby Realize the transmission of optical signals.

In this embodiment, the third inserting portion 226 is a positioning post structure protruding on the second joint surface 225, and the fourth inserting portion 322 is a positioning recess recessed on the third mating surface 321. Groove structure, the male end 200 is coupled and matched with the female end 300 through the corresponding positioning post structure and positioning groove structure, thereby constructing an optical signal transmitted from the male end 200 to the female end 300 aisle.

The fourth lens 323 is in one-to-one correspondence with the third lens 227 of the male end 200 and is optically coupled. The optical axes of the lenses 227 coincide with each other. The fourth lens 323 is used for converging and receiving the optical signal emitted by the third lens 227, and the optical signal emitted by the third lens 227 enters the inside of the second adapter part 320 from the fourth lens 323. .

A fifth insertion portion 326 and a fifth lens 327 integrally formed with the second adapter portion 320 are disposed on the fourth mating surface 325 .

The fifth inserting portion 326 is used for inserting and mating with the second coupling portion 310 , so that the second adapter portion 320 is detachably connected with the second coupling portion 310 .

The fifth lens 327 is one-to-one coupled with the fourth lens 323 , and the optical axis of the fifth lens 327 coincides with the optical axis of the fourth lens 323 . The optical signal entering the second adapter part 320 from the fourth lens 323 is converged again by the fifth lens 327 and then exits from the fifth lens 327 and enters the second coupling part 310 .

The second coupling part 310 includes a second optical fiber 360 and a second coupling surface 311 corresponding to the second optical fiber 360 .

A sixth insertion portion 312 and a sixth lens 313 optically coupled to the second optical fiber 360 are disposed on the second coupling surface 311 .

The sixth socket part 312 corresponds to the fifth socket part 326 one by one, and is used for plugging and mating with the fifth socket part 326 so that the second adapter part 320 and the second coupling part 310 can be connected. The disassembled ones are fixedly connected together.

In this embodiment, the fifth insertion part 326 is a positioning post structure protruding on the fourth mating surface 325, and the sixth insertion part 312 is a positioning recess recessed on the second coupling surface 311. Groove structure, the fifth insertion part 326 cooperates with the sixth insertion part 312 through the positioning column and positioning groove structure corresponding to each other, so that the second transfer part 320 and the second coupling The parts 310 are detachably fixedly connected together.

The sixth lens 313 is one-to-one coupled with the fifth lens 327 , and the optical axis of the sixth lens 313 coincides with the optical axis of the fifth lens 327 . The optical signal emitted by the fifth lens 327 enters the second coupling part 310 from the sixth lens 313 and enters the second optical fiber 360 after being converged by the sixth lens 313 .

It can be understood that in the optical fiber connector 400 provided in the second embodiment of the present invention, the first coupling part 210 and the first transition part 220 , the first transition part 220 and the second transition part 320 And the detachable structure between the second adapter part 320 and the second coupling part 310 is not limited to the positioning column and the positioning groove structure that are plugged and fitted with each other, it can also be other detachable positioning structures, As long as the first coupling part 210 and the first transition part 220, the first transition part 220 and the second transition part 320, and the second transition part 320 and the second coupling part 310 can realize All detachably connected fixing structures can be applied to the present invention.

It can be understood that the optical fiber connector 400 may only include one of the male end 200 or the female end 300, and, during use, the male end 200 or the female end 300 may also be fixed on the electronic device for It is used for the USB data transmission interface of the electronic device.

When the optical fiber connector 400 is in use, the male end 200 and the female end 300 are plugged and mated with each other through the first transition part 220 and the second transition part 320. At this time, the first optical fiber of the male end 200 260, the optical axes of the first lens 213, the second lens 223, and the third lens 227 are all on the same axis as the optical axes of the fourth lens 323, the fifth lens 327, the sixth lens 313, and the second optical fiber 360 of the female end 300. On a straight line, after the optical signal enters the optical fiber connector 400 from the first optical fiber 260 of the male end 200, it passes through the first lens 213, the second lens 223, the third lens 227, the fourth lens 323, and the fifth lens in sequence. After the coupling of the lens 327 and the sixth lens 313, it is injected into the second optical fiber 360, thereby realizing the transmission of optical signals.

The male end and the female end of the optical fiber connector 400 are plugged and fitted with each other through the detachable transition parts respectively provided thereon. When the positioning accuracy decreases due to wear and tear, and the optical coupling accuracy of the fiber optic connector decreases due to the decrease in positioning accuracy, the connection between the male end and the female end can be restored by replacing the adapter part of the male end and/or the female end. The positioning accuracy of the optical fiber connector can be restored to achieve the purpose of restoring the optical coupling accuracy of the fiber optic connector.

Compared with the prior art, through the above-mentioned design, the present invention only needs to replace the male connector when the optical coupling accuracy decreases due to the wear of the positioning structure between the male end and the female end during the use of the optical fiber connector. The optical positioning accuracy of the optical fiber connector can be restored by connecting the connecting part of the terminal and/or the female end, avoiding the need to replace the entire male end or female end after the optical coupling accuracy drops due to the wear and tear of the positioning structure in the prior art. The disadvantage of optical coupling accuracy can be recovered only at the end, which greatly improves the performance of the optical fiber connector and reduces the waste of resources.

It can be understood that those skilled in the art can also make other changes within the spirit of the present invention for the design of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims (3)

1. An optical fiber connector, comprising: a coupling part having a coupling surface, the coupling part including an optical fiber and a first lens, the first lens being arranged on the coupling surface and optically coupled with the optical fiber; An adapter part, which is detachably connected to the coupling part, the adapter part includes a second mating surface and a first mating surface cooperating with the coupling surface, the second mating surface is opposite to the first mating surface, the A second lens corresponding to the first lens is arranged on the first matching surface, a third lens corresponding to the second lens is arranged on the second matching surface, the first lens, the second lens and the third lens The optical axes of the lenses coincide with each other, and the optical signal input by the optical fiber is output through the first lens, the second lens and the third lens in sequence, a first positioning structure is arranged on the coupling surface, and a first positioning structure is arranged on the first mating surface. There is a second positioning structure that cooperates with the first positioning structure, and the coupling part is detachably fixed with the transfer part through the first and second positioning structures that cooperate with each other. The first positioning structure is a positioning column , the second positioning structure is a positioning groove. 2. The optical fiber connector according to claim 1, wherein the first positioning structure is symmetrically arranged on two sides of the first lens. 3. An optical fiber connector, comprising: The male end includes a first coupling portion having a first coupling surface and a first transition portion detachably connected to the first coupling portion, the first coupling portion includes a first optical fiber and is disposed on the first coupling surface And the first lens optically coupled with the first optical fiber, the first transition part includes a second mating surface and a first mating surface that cooperates with the first coupling surface, the second mating surface and the first mating surface Oppositely, the first matching surface is provided with a second lens corresponding to the first lens one-to-one, and the second matching surface is provided with a third lens corresponding to the second lens one-to-one. The first lens, The optical axes of the second lens and the third lens coincide with each other; The female terminal includes a second coupling portion having a second coupling surface and a second transition portion detachably connected to the second coupling portion, and the second transition portion includes a third mating surface and a fourth mating surface opposite to each other. surface, the third mating surface is used to cooperate with the second mating surface of the male end, the third mating surface is provided with a fourth lens corresponding to the third lens one by one, and the fourth mating surface is provided with a The fourth lens one-to-one corresponds to the fifth lens, the second coupling part includes a second optical fiber and a sixth lens arranged on the second coupling surface and optically coupled with the second optical fiber, the second coupling surface and the second optical fiber are optically coupled. The fourth mating surfaces cooperate with each other, the sixth lens corresponds to the fifth lens one by one, the optical axes of the fourth lens, the fifth lens and the sixth lens coincide with each other, and the optical signal output by the first optical fiber passes through the After the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens enter the second optical fiber for transmission, the first coupling surface is provided with a first positioning structure, and the first mating surface A second positioning structure corresponding to the first positioning structure is provided, the first coupling part and the first transfer part are detachably connected through the first and second positioning structures, and the second mating surface is provided with a second positioning structure. Three positioning structures, the third matching surface is provided with a fourth positioning structure corresponding to the third positioning structure, the male end and the female end cooperate with each other through the third and fourth positioning structures, the fourth matching surface A fifth positioning structure is provided on the upper surface, and a sixth positioning structure corresponding to the fifth positioning structure is provided on the second coupling surface. The second coupling part and the second transfer part are positioned through the fifth and sixth positioning structures. The structures are detachably connected, the first, third and fifth positioning structures are all positioning column structures, and the second, fourth and sixth positioning structures are all positioning grooves that are plugged and matched with the positioning column structures.