CN117420641A - Optical fiber connector and connecting assembly - Google Patents

Abstract

The invention relates to the technical field of communication and discloses an optical fiber connector and a connecting assembly. The optical fiber connector includes: comprises a tail sleeve and an outer frame which are detachably connected, and a connecting mechanism is arranged in the tail sleeve, wherein one end of the outer frame is a connecting end; the connecting mechanism comprises a stop piece, a limiting assembly, a plurality of elastic pieces, a plurality of ceramic ferrules and an inner frame sleeve, wherein the stop piece is detachably connected with the inner frame sleeve, and a containing part is formed in the stop piece; the ceramic ferrule and the elastic piece are limited in the accommodating part through the limiting assembly, the limiting assembly is provided with at least four limiting holes, the ceramic ferrule passes through the limiting holes and is partially exposed at the connecting end, and the elastic piece is sleeved on the periphery of the ceramic ferrule; the outer frame is one of a male frame and a female frame, and the male frame and the female frame are detachably connected at the connecting end. The optical fiber connector has the characteristics of miniaturization, simple installation and high-density transmission. In addition, the invention also provides a connection assembly comprising the optical fiber connector.

Description

Optical fiber connector and connecting assembly

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to an optical fiber connector and a connecting assembly.

Background

Optical fiber connectors are indispensable structures for connecting optical devices and modules in an optical fiber communication system as devices for connecting optical fibers to each other. In recent years, with the development of technologies such as a 5G network, cloud computing, and the internet of things, the technical field of communication has raised higher requirements on the speed, quality and reliability of an optical fiber connector. Currently, optical fiber connectors are being developed toward miniaturization, high density, high speed transmission, and high frequency. In the prior art, optical fiber connectors are mostly used for connecting optical fibers between single cores, and cannot meet the current high-speed and high-density transmission requirements.

Therefore, it is a problem to be solved by those skilled in the art how to provide a connector that is compact and satisfies high-density and high-speed transmission performance.

Disclosure of Invention

In order to solve the above-mentioned problem, this application embodiment provides an optical fiber connector, and this optical fiber connector forms layer sleeve formula package assembly through tail cover, frame and coupling mechanism, and mounting structure is simple, accomplishes the multicore and connects, and need not the adapter, directly cooperates through public frame and female frame and connects, further retrencies the structure. Besides, the invention also provides a connecting assembly.

Specifically, an optical fiber connector is used for connecting optical fibers and comprises a tail sleeve and an outer frame which are detachably connected, and a connecting mechanism which is arranged in the tail sleeve and used for limiting the optical fibers, wherein one end of the outer frame is a connecting end;

the connecting mechanism comprises a stop piece, a limiting assembly, a plurality of elastic pieces, a plurality of ceramic ferrules and an inner frame sleeve, wherein the stop piece is detachably connected with the inner frame sleeve, and an accommodating part is formed in the stop piece;

the ceramic ferrule and the elastic piece are limited in the accommodating part through the limiting assembly, the limiting assembly is provided with at least four limiting holes, the ceramic ferrule is limited in the limiting holes and is partially exposed out of the connecting end, and the elastic piece is sleeved on the periphery of the ceramic ferrule;

the outer frame is one of a male frame and a female frame, and the male frame and the female frame are detachably connected at the connecting end.

Preferably, the connector further comprises a crimping part and a heat shrinkage part for fixing the optical cable, wherein the crimping part is connected with the stop piece, and the heat shrinkage part is connected with the tail sleeve.

Preferably, the stopper is provided with a first buckle, the inner frame sleeve is provided with a first buckling part or the stopper is provided with a first buckling part, the inner frame sleeve is provided with a first buckle, and the stopper is connected with the inner frame sleeve through the first buckling point and the first buckling part in a buckling way.

Preferably, an auxiliary groove is further formed in the side wall of the inner frame sleeve.

Preferably, the outer frame is provided with a second buckle, the tail sleeve is provided with a second buckling part or the outer frame is provided with a second buckling part, the tail sleeve is provided with a second bayonet, and the outer frame and the tail sleeve are connected through the second bayonet and the second buckling part in a clamping manner.

Preferably, the male frame is inserted into the female frame and connected in a buckling manner.

Preferably, the female frame comprises a female frame body, and the female frame body is connected with a fixing piece for being buckled and connected with the male frame and a plurality of ceramic sleeves for being connected with the ceramic lock pin.

In some embodiments, the limiting assembly comprises a first limiting member and a second limiting member, the first limiting member at least comprises four limiting grooves, the second limiting member comprises at least four limiting holes, one end of the ceramic ferrule is connected with the limiting grooves, and the other end of the ceramic ferrule penetrates through the limiting holes and is exposed out of the connecting end; the elastic pieces are sleeved on the ceramic ferrule one by one, and two ends of the elastic pieces are respectively abutted to the first limiting piece and the second limiting piece.

In other embodiments, the limiting assembly comprises a third limiting member and a fourth limiting member, the third limiting member comprises at least four limiting grooves, and the fourth limiting member is connected with the third limiting member and forms the limiting hole with the limiting grooves; the ceramic lock pin is arranged in the limiting hole, the elastic piece is sleeved on the outer side of the ceramic lock pin, and two ends of the elastic piece are respectively abutted to the limiting assembly and the stop piece.

Preferably, the ceramic ferrule is provided with a bayonet matched with the limiting groove, and the ceramic ferrule is limited in the limiting hole through the bayonet.

The invention also provides a connecting assembly, which comprises at least more than two optical fiber connectors, wherein the outer frame of one optical fiber connector is the male frame to form a connector male end, the outer frame of the other optical fiber connector is the female frame to form a connector female end, and the connector male end is detachably connected with the connector female end; or comprises two said connector male ends and an adapter, said connector male ends being connected to the same adapter.

The optical fiber connector and the connecting component have the following technical effects:

1. the structure is simple, and the high-density transmission performance is met. In the optical fiber connector provided by the invention, the tail sleeve and the outer frame are surrounded on the outer side of the connecting mechanism to form the layer sleeve type assembly structure, the mounting structure is simple, the space utilization rate is improved, the multi-core connection is realized, and the performance transmission of the optical fiber is not influenced while the space and the size are miniaturized. The assembly difficulty is reduced, the production cost of the connector is saved, and the use requirement of a data center is greatly met. The contacts are reduced in the concentrated wiring process, and the network stability is improved. Besides, the layer sleeve type assembly structure is convenient to maintain and reduces maintenance cost, so that fault processing is faster, polarity exchange is completed rapidly, duration of system faults is shortened, and accordingly working efficiency is improved.

2. No adapter is needed. In the optical fiber connector provided by the invention, the outer frame is detachably connected with the tail sleeve, and the outer frame can be one of a male frame or a female frame. The optical fiber connector can be used for replacing the outer frame type according to the requirement, and the matched connection between different optical fiber connectors can be realized through the detachable connection of the male frame and the female frame, so that a connecting assembly is formed. The design of the outer frame and the tail sleeve increases the flexibility of the optical fiber connector, and the elimination of the adapter docking further enhances the transmission stability and the miniaturization. The space occupied by the miniaturized connector is reduced, so that the refrigerating efficiency of a machine room is improved, the energy consumption is reduced, the influence on the environment caused by the energy consumption is reduced, and the optical fiber system is more environment-friendly.

Drawings

FIG. 1 is an exploded view of a fiber optic connector according to embodiment 1 of the present application;

FIG. 2 is a schematic view of the structure of the optical fiber connector of the present application;

fig. 3 is a schematic diagram of an assembly structure of a limiting assembly and a ferrule according to embodiment 1 of the present application.

FIG. 4 is a cross-sectional view of the connection mechanism of embodiment 1 of the present application;

FIG. 5 is a cross-sectional view of a fiber optic connector of example 1 of the present application;

FIG. 6 is a schematic diagram of a male frame structure of the present application;

FIG. 7 is an exploded view of the parent frame of the present application;

FIG. 8 is an exploded view of the fiber optic connector of example 2 of the present application;

FIG. 9 is a schematic structural view of a spacing assembly and a ferrule according to embodiment 2 of the present application;

FIG. 10 is a cross-sectional view of the connection mechanism of embodiment 2 of the present application;

FIG. 11 is a schematic view showing a partial structure of a connecting mechanism according to embodiment 2 of the present application;

fig. 12 is a schematic structural view of a connection assembly according to embodiment 3 of the present application;

FIG. 13 is a cross-sectional view of a connection assembly of embodiment 3 of the present application;

fig. 14 is a schematic structural view of a connection assembly according to embodiment 4 of the present application.

Reference numerals:

1 tail sleeve, 11 second buckle,

2 an outer frame, 21 a second buckling part, 210 a female frame, 211 a fixing piece, 212 a ceramic sleeve, 213 a guide groove and 214 a female frame body; 220 male frame, 221 guide block, 222 connecting part;

the connecting mechanism, the 31 stop piece, the 311 first buckle, the 32 elastic piece, the 33 ceramic ferrule, the 331 ferrule tail handle, the 332 bayonet, the 34 inner frame sleeve, the 341 auxiliary groove, the 342 first buckling part, the 35 limit hole, the 36 first limit piece, the 361 first limit part, the 362 second limit part, the 363 limit channel, the 364 limit groove, the 37 second limit piece, the 38 third limit piece and the 39 fourth limit piece;

4, connecting piece, 41 crimping part, 42 thermal shrinkage part;

100 connector male end, 200 connector female end, 300 adapter.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and technical features in the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as undue limitation to the present application.

For the purposes, technical solutions and advantages of the embodiments of the present application to be more apparent, the specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are illustrative of the present application, but are not intended to limit the scope of the present application.

In the present embodiments, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

Furthermore, in the embodiments of the present application, the terms "upper," "lower," "left," and "right," etc., are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative terms, which are used for descriptive and clarity with respect to each other, and which may vary accordingly with respect to the orientation in which the components in the drawings are disposed.

In the embodiments herein, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either a fixed connection, a removable connection, or an integral body; can be directly connected or indirectly connected through an intermediate medium.

In the embodiments of the present application, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

Example 1

Fig. 1 shows an exploded view of the optical fiber connector of the present embodiment, and fig. 2 shows a schematic structural view of the optical fiber connector of the present embodiment. As shown in fig. 1 and 2, the present embodiment provides an optical fiber connector, which includes a tail sleeve 1 and an outer frame 2, wherein the tail sleeve 1 and the outer frame 2 are detachably connected, and a connection mechanism 3 is limited in the tail sleeve 1 and the outer frame 2. The optical fiber connector can be used for multi-core connection, and realizes high-density transmission while the structure is miniaturized.

Specifically, the connection mechanism 3 includes a stopper 31, a limiting assembly, a plurality of elastic members 32, a plurality of ferrules 33, and an inner frame sleeve 34. The stopper 31 and the inner frame cover 34 are detachably coupled, and a receiving portion is formed therein. The limiting assembly, the ferrule 33 and the elastic member 32 are all located at the accommodating portion. The spacing assembly is provided with a plurality of spacing holes 35, and the ferrule 33 passes through the spacing holes 35. The elastic piece 32 is sleeved outside the ceramic ferrule 33, so that the ceramic ferrule 33 can axially move along the direction of the tail sleeve 1 and the outer frame 2 under the action of the elastic piece 32. It should be noted that, one end of the accommodating portion is a connection end, and the ferrule 33 is limited in the accommodating portion by the limiting component and partially passes through the connection end so as to be connected with other optical fibers.

Fig. 3 is a schematic diagram showing an assembled structure of the spacing assembly and the ferrule 33 according to the present embodiment. As shown in fig. 3, in the present embodiment, the stopper assembly includes a first stopper 36 and a second stopper 37. The first limiting member 36 is configured to be connected to the stopper 31, and includes a first limiting portion 361 and a second limiting portion 362 that are connected to each other, where the volume of the first limiting portion 361 is smaller than that of the second limiting portion 362, so as to facilitate insertion and limiting in the stopper 31. The side edges of the first limit part 361 and the second limit part 362 are provided with limit channels 363 which are communicated. The limiting channel 363 is used to fit the space of the fiber. The front end of the second limiting portion 362 is provided with a limiting groove 364 communicating with the limiting channel 363. One end of the ferrule 33 is limited in the limiting groove 364.

The other end of the ferrule 33 passes through the second limiting member 37, and the elastic members 32 are sleeved outside the ferrule 33 one by one, and two ends of the elastic members 32 are limited between the limiting groove 364 and the second limiting member 37. In the present embodiment, the elastic member 32 is a spring, which may be a conventional round spring or a spring of other shape, which is not particularly limited herein. The limit slot 364 provides a guiding and braking function for the spring 32. The second limiting piece 37 is provided with a plurality of limiting holes 35, the second limiting piece 37 is close to the connecting end, and the ceramic ferrule 33 penetrates through the different limiting holes 35 one by one and then is exposed at the connecting end. It should be noted that, the side of the limiting hole 35 near the elastic member 32 is a non-circular hole for limiting the rotation of the ferrule 33. Further, referring to fig. 1 and 3 in combination, the ferrule tail 331 is further connected to the ferrule 33, and the large end of the ferrule tail 331 is quadrilateral, hexagonal or other polygonal, so that the ferrule 33 can be further prevented from rotating, thereby increasing the stability of the structure.

The number of the limit holes 35, the limit grooves 364 and the limit channels 363 is the same as the number of optical fibers to be connected. In this embodiment, the optical fiber connector can be used for connection of four optical fibers, and thus 4 limiting holes 35, limiting grooves 364 and limiting channels 363 are correspondingly provided. Wherein the limiting holes 35 are uniformly distributed in rectangular shape. In addition, in order to reduce the mutual influence between the optical fibers while ensuring miniaturization of the optical fiber connector, in the present embodiment, the distance between the centers of the adjacent limiting holes 35 on the second limiting member 37 is set to L, and the value of L is greater than or equal to 1.6mm and less than or equal to 3mm. Accordingly, the diameter of the ferrule 33 ranges from 0.7 to 1.25mm. It will be understood that the dimensions are not limited solely herein and that modifications may be made on the basis of these dimensions by those skilled in the relevant art.

Fig. 4 shows a cross-sectional view of the connection 3. Referring to fig. 1 to 4 in combination, the inner frame sleeve 34 and the stopper 31 are detachably connected, and a receiving portion is formed inside, and a limiting assembly, an elastic member 32 and a ferrule 33 are limited at the receiving portion. In this embodiment, the first limiting member 36 is connected to the stop member 31 and the inner casing 34, and the second limiting member 37 is close to the connecting end and is limited in the inner casing 34. Wherein, a cavity with the size matching with the first limiting part 361 of the first limiting part 36 is arranged on one side of the stop member 31 close to the limiting assembly, and the first limiting part 36 is inserted into the stop member 31 through the first limiting part 361. At the other end, the second stop 37 is adapted to the end of the inner casing 34 near the connection end so as to be confined within the inner casing 34. In this embodiment, the end of the second limiting member 37 near the connecting end approximates to a stepped structure and is matched with the structure of the inner frame sleeve 34, so that the limiting assembly and the ferrule 33 can be tightly limited at the accommodating portion when the inner frame sleeve 34 and the stop member 31 are connected. It should be noted that, the end of the ferrule 33 near the connection end passes through the second limiting member 37 and the inner frame sleeve 34, and is exposed at the connection end, so as to be connected with other optical fibers later.

In addition, in the present embodiment, the inner frame sleeve 34 is snap-coupled to the stopper 31. The outer side wall of the stopper 31 is provided with a first buckle 311, the side wall of the inner frame sleeve 34 is provided with a first buckling part 342, and the stopper 31 and the inner frame sleeve 34 are connected by buckling the first buckle 311 and the first buckling part 342. Of course, there are also some embodiments in which the first fastening portion 342 is provided by the stopper 31, and the inner frame sleeve 34 is provided with the first fastening portion 311 to achieve the fastening connection, which is not limited only herein. The first fastening portion 342 is a hollow hole, and the first fastener 311 is fastened into the hollow hole, so that the structure is convenient to install and detach, and is beneficial to subsequent maintenance.

In particular, referring back to fig. 1, in order to facilitate the insertion and engagement of the stopper 31 into the inner jacket 34, an auxiliary groove 341 is further provided on the sidewall of the inner jacket 34. The auxiliary groove 341 is recessed inward from one end of the inner frame sleeve 34 near the stopper 31, and extends in the direction in which the stopper 31 and the inner frame sleeve 34 are located, so that the inner frame sleeve 34 can be smoothly engaged with the stopper 31.

Further, the optical fiber connector provided in this embodiment further includes a connector 4, and the connector 4 has an overall approximately tubular structure for connecting the boot 1 and the stopper 31, and includes a crimping portion 41 and a heat shrinking portion 42. Wherein, crimping portion 41 is used for crimping fixed optical cable aramid, and pyrocondensation portion 42 is used for tightening up the optical cable skin. The stopper 31 is provided with a connection post on a side away from the spacing member, and the crimp portion 41 of the connector 4 is partially connected to the connection post, functions as a connection cable and an optical fiber connector, and has sealing property.

Fig. 5 shows a cross-sectional view of the optical fiber connector of the present embodiment. Referring to fig. 1, 4 and 5, the tail sleeve 1 and the outer frame 2 are detachably connected, and the connecting mechanism 3 and the connecting piece 4 are limited inside after the tail sleeve 1 and the outer frame 2 are assembled. In the embodiment, the tail sleeve 1 and the outer frame 2 are connected in a buckling way. The outer frame 2 is provided with a second buckle 11, the tail sleeve 1 is provided with a second buckling part 21, and the outer frame 2 and the tail sleeve 1 are connected in a clamping way through a second bayonet 332 and the second buckling part 21. The second fastening portion 21 is a fastening groove adapted to the second fastening portion 11, and is disposed on a side wall of the outer frame 2. Of course, in some embodiments, the second fastening portion 21 is provided by the outer frame 2, and the tail sleeve 1 is provided with the second fastener 11 to achieve assembly. And are not limited in this regard. As shown in fig. 4, one end of the tail sleeve 1 far away from the outer frame 2 is provided with an outer sleeve for limiting the optical cable, and the compression part of the connecting piece 4 is positioned in the outer sleeve.

In particular, the outer frame 2 may be one of the female frame 210 or the male frame 220. Fig. 6 and 7 show a schematic structural view of the male frame 220 and an exploded schematic view of the female frame, respectively. As shown in fig. 6 and 7, the male frame 220 and the female frame 210 are each provided with a second fastening portion 21 for fastening connection with the tail cover 1. The male frame 220 and the female frame 210 may be connected to each other at an end remote from the second fastening portion 21 by a plug, lock, or other removable structure. As shown in fig. 2, in the present embodiment, the outer frame 2 is a male frame 220.

Referring to fig. 1 to 5 in combination, in the optical fiber connector provided in this embodiment, the tail sleeve 1 and the outer frame 2 are located at the outermost layer of the optical fiber connector, and the connecting mechanism 3 and the connecting member 4 are arranged in the tail sleeve to form a layer sleeve type assembly structure, so that space is fully utilized, space utilization is improved, the tail sleeve can be used for four-core connection, high-density transmission performance is realized, and optical fiber transmission performance is not affected while space and size are miniaturized. The contacts are reduced in the concentrated wiring process, and the network stability is improved. Meanwhile, the sealing performance of the internal optical fibers is further improved by the layer sleeve type assembled structure, and the effect that the optical fiber connection is affected by sundries such as dust is reduced.

Further, the optical fiber connector provided in the embodiment has the characteristic of convenient maintenance. In this embodiment, the tail sleeve 1 and the outer frame 2 and the stop member 31 and the inner frame 34 are detachably connected, so that the optical fiber connector can be quickly detached during installation or use, faults can be handled in time, duration of system faults is shortened, and working efficiency is improved.

For example, the product optical cable is connected with the terminal optical fiber through the optical fiber connector, and if the optical fiber of the product optical cable and the terminal optical fiber are in central symmetry at this moment, and therefore, when the product optical cable and the terminal optical fiber cannot be connected for use in a one-to-one correspondence manner, the tail sleeve 1 and the outer frame 2 can be unlocked, the connecting mechanism 3 in the product optical cable can be rotated by 180 degrees until the optical fiber of the product optical cable and the optical fiber of the terminal are in one-to-one correspondence, and then the tail sleeve 1, the outer frame 2 and the connecting mechanism 3 are reinstalled, so that the connection between the optical fiber connector and the terminal optical fiber is realized.

If the optical fibers cannot be adjusted to be in one-to-one correspondence, the inner frame sleeve 34 and the stop member 31 can be further unlocked, and then the ferrule 33 is detached from the second stop member 37 and the first stop member 36 in sequence. First, the second stopper 37 is moved in a direction away from the first stopper 36 until the ferrules 33 are separated from the second stopper 37, and then each of the ferrules 33 is moved toward the side wall of the first stopper 36. It should be noted that the limiting channel 363 and the limiting groove 364 are both in communication with the side wall of the first limiting member 36. Therefore, after the ferrule 33 is separated from the second stopper 37, it is moved in a direction along the sidewall of the first stopper 36, which is adjacent to each other, so as to be completely separated from the first stopper 36. At this time, the positions of the ferrule 33 and the corresponding optical fibers are adjusted one by one according to the requirements, and the optical fiber connectors are reassembled so as to facilitate the connection between different optical cables.

The optical fiber connector provided by the embodiment has the characteristic of miniaturization, and in a 1u chassis with the width of 440mm, 396-core optical fibers can be installed through the optical fiber connector, so that the data transmission density is greatly improved. Due to the characteristic of miniaturization, the occupied space of the optical fiber connector is reduced, so that the refrigerating efficiency of a machine room is improved, the energy consumption is reduced, the influence on the environment caused by the energy consumption is reduced, and the optical fiber system is more environment-friendly.

Example 2

The optical fiber connector of this embodiment is the same as the optical fiber connector of the first embodiment in its entirety, but another implementation of the connecting mechanism 3 is proposed on the basis of the first embodiment, and the differences between this embodiment and the first embodiment are further described below with reference to the first embodiment.

Fig. 8 shows a schematic structural view of the optical fiber connector of the present embodiment, fig. 9 shows a schematic structural view of another limiting assembly and the ferrule 33, and fig. 10 shows a cross-sectional view of another connection mechanism 3. Fig. 11 is a partial schematic structural view of the connecting mechanism 3 of the present embodiment. Referring to fig. 8 to 11, in the present embodiment, the stopper assembly includes a third stopper 38 and a fourth stopper 39. The third limiting member 38 has a plate-shaped structure, and four limiting grooves 364 are symmetrically disposed, and the limiting grooves 364 are formed by inward recessing of the side walls of the third limiting member 38. The fourth limiting piece 39 is of an open type annular structure matched with the outer wall of the third limiting piece 38, and is U-shaped. In the present embodiment, the fourth stopper 39 is disposed side by side with the third stopper 38. The third limiting member 38 limits the ferrule 33 in the vertical direction through the limiting groove 364, and the fourth limiting member 39 limits the ferrule 33 in the left-right direction, so that the fourth limiting member 39 and the side wall portion of the limiting groove 364 form the limiting hole 35.

In this embodiment, the size of the opening of the inner casing 34 at the connecting end is smaller than that of the third limiting member 38, so that the third limiting member 38 and the fourth limiting member 39 are located in the inner casing 34 near the connecting end and cannot be separated from the inner casing 34. The ceramic ferrules 33 pass through the limiting holes 35 one by one, and one end of each ceramic ferrule is exposed out of the connecting end. The ceramic ferrule 33 is provided with a ferrule tail handle 331, and a large head end of the ferrule tail handle 331 is abutted against one side of the limiting hole 35 in the accommodating portion. The structure of the large head end of the ferrule tail shank 331 is not particularly limited herein.

As shown in fig. 10 and 11, the elastic member 32 is sleeved on the periphery of all the ferrules 33. In the present embodiment, the elastic member 32 is a square spring as a whole so as to abut against the stopper 31. One end of the elastic member 32 abuts against the inner side of the limiting assembly, and the other end abuts against the inner side of the stopper 31. Correspondingly, the end of the stop member 31 near the limiting component should be provided with an abutting wall for facilitating the abutting of the elastic member 32, and a channel for facilitating the passage of the optical fiber.

Referring to fig. 11, in order to prevent the ferrule 33 from rotating to cause unstable structure, the ferrule 33 is further provided with a bayonet 332 adapted to the limiting slot 364, and the third limiting member 38 is clamped at the bayonet 332 at a portion of the limiting slot 364, so as to limit the rotation of the ferrule 33. Under the action of the third limiting member 38 and the fourth limiting member 39, the plurality of ferrule 33 are fixed as a whole and are limited at the accommodating portion.

Similar to the optical fiber connector of the first embodiment, the optical fiber connector of the present embodiment also has a function of easy disassembly and maintenance. And the connecting mechanism 3 is rotated after the tail sleeve 1 and the outer frame 2 are unlocked, so that polarity conversion is realized. Or unlocking the inner frame sleeve 34 and the stop piece 31, and adjusting the position of the ferrule 33. Specifically, after unlocking the inner frame sleeve 34 and the stopper 31, the third stopper 38 is close to the connection end, so that the ferrule 33 is moved toward the side wall of the third stopper 38 that is close to the connection end, the ferrule 33 is separated from the third stopper 38, the fastening state between the bayonet 332 and the third stopper 38 is released, and then the fourth stopper 39 is moved toward the side away from the opening, and the fourth stopper 39 is detached from the ferrule 33. The ferrule 33 is then repositioned as desired and reassembled with a structure such as a stop assembly to form the fiber optic connector 4.

Compared with the first embodiment, the structure of the limiting component is different, and the structure of the limiting component is more compact and small, so that the matching space is effectively reduced.

Example 3

Fig. 12 and 13 show a schematic structural view and a sectional view of the connection assembly, respectively. The present embodiment provides a connection assembly, which includes two optical fiber connectors, wherein an outer frame 2 of one optical fiber connector is a female frame 210 to form a connector female end 200, and an outer frame 2 of the other optical fiber connector is a male frame 220 to form a connector male end 100. The connector male end 100 and the connector female end 200 are detachably connected without being additionally connected through the adapter 300, so that the miniaturization degree of the optical fiber connector during connection is further increased, and the flexibility during installation is increased.

Specifically, referring to fig. 7, the female frame 210 includes a female frame body 214 and a plurality of ceramic bushings 212 for connection with the ferrule 33, and the female frame body 214 is connected with a fixing member 211 for connection with the male frame 220. In this embodiment, the male connector end 100 is snap-fit with the female connector end 200, so the fixing member 211 is a clip member.

Referring to fig. 6, 12 and 13, the outer frame 2 of the male frame 220 is provided with a connecting portion 222 at a connecting end for engagement. The structure of the connecting portion 222 is approximately trapezoidal overall, with a wide front end and a narrow rear end. The fixing piece 211 is adapted to the connecting portion 222, and two sides of the fixing piece are provided with clamping arms for being clamped at the narrow part of the connecting portion 222. The clamping arm of the fixing piece 211 has elasticity, and as the side where the connecting part 222 of the male connector 100 is located is inserted into the female connector 200, the connecting part 222 and the fixing piece 211 are clamped, limiting the male connector 100 and preventing the male connector 100 from being easily separated. At the same time, the ferrule 212 is used to connect the ferrules 33 of different fiber optic connectors, ensuring that the ferrules 33 of different fiber optic connectors are in a coaxial and one-to-one connection.

Further, in this embodiment, in order to facilitate the insertion connection between the male connector end 100 and the female connector end 200, the female frame 210 is further provided with a guiding slot 213 at a side where the connection end is located, and the guiding slot 213 extends from the edge of the female frame 210 to the inner side along the insertion direction of the female frame 210 and the male frame 220. The male frame 220 is provided with a guide block 221 which is matched with the guide groove 213. When the male connector 100 and the female connector 200 are connected in a plugging manner, the guide grooves 213 and the guide blocks 221 can be used as fool-proof designs, so that the plugging connection process is smoother, the plugging effect is visualized, and the stable plugging is ensured.

It should be noted that the structure of the fixing member 211 is not limited herein, and in some embodiments, the fixing member 211 may be integrally formed with the female frame 210.

Example 4

The present embodiment provides another connection assembly. Fig. 14 shows a schematic structural diagram of the connection assembly of the present embodiment, including two male connectors 100 and an adapter 300. The adapter 300 is similar in structure to the female frame 210, including a ceramic sleeve 212 and a fixture 211. The difference is that both ends of the adapter 300 are connection ends, and both ends can be used for connection with the male connector 100.

In this embodiment, the male connector end 100 is respectively inserted into two ends of the adapter 300 and connected to the adapter 300 to form a connection assembly.

In summary, the optical fiber connectors provided by the invention have universality, and the connection mode between the optical fiber connectors can be selected according to the requirements.

The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments. The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims (11)

1. The optical fiber connector is used for connecting optical fibers and is characterized by comprising a tail sleeve (1) and an outer frame (2) which are detachably connected, and a connecting mechanism (3) is arranged in the tail sleeve, wherein one end of the outer frame (2) is a connecting end;

the connecting mechanism (3) comprises a stop piece (31), a limiting assembly, a plurality of elastic pieces (32), a plurality of ceramic ferrules (33) and an inner frame sleeve (34), wherein the stop piece (31) is detachably connected with the inner frame sleeve (34), and a containing part is formed in the stop piece;

the ceramic ferrule (33) and the elastic piece (32) are limited in the accommodating part through the limiting assembly, the limiting assembly is provided with at least four limiting holes (35), the ceramic ferrule (33) penetrates through the limiting holes (35) and is partially exposed out of the connecting end, and the elastic piece (32) is sleeved on the periphery of the ceramic ferrule (33);

the outer frame (2) is one of a male frame (220) or a female frame (210), and the male frame (220) and the female frame (210) are detachably connected at the connecting end.

2. The optical fiber connector according to claim 1, further comprising a connecting member (4), the connecting member (4) comprising a crimping portion (41) and a heat shrinkage portion (42) for fixing an optical cable, the crimping portion (41) being connected with the stopper (31), the heat shrinkage portion (42) being connected with the boot (1).

3. The optical fiber connector according to claim 1, wherein the stopper (31) is provided with a first buckle (311), the inner frame sleeve (34) is provided with a first buckling part (342), or the stopper (31) is provided with a first buckling part (342), the inner frame sleeve (34) is provided with a first buckle (311), and the stopper (31) and the inner frame sleeve (34) are connected by the first buckling part (342) in a buckling way.

4. A fiber optic connector according to claim 3, wherein the inner frame sleeve (34) is further provided with auxiliary grooves (341) on a side wall thereof.

5. The optical fiber connector according to claim 1, wherein the outer frame (2) is provided with a second buckle (11), the tail sleeve (1) is provided with a second buckling part (21), or the outer frame (2) is provided with a second buckling part (21), the tail sleeve (1) is provided with a second bayonet (332), and the outer frame (2) and the tail sleeve (1) are connected in a clamping way through the second bayonet (332) and the second buckling part (21).

6. The fiber optic connector of claim 1, wherein the male frame (220) is inserted into the female frame (210) and snap-fit.

7. The fiber optic connector of claim 6, wherein the female frame (210) includes a female frame body (214), the female frame (210) body having attached thereto a fastener (211) for snap-fit connection with the male frame (220) and a plurality of ceramic ferrules (212) for connection with the ferrule (33).

8. The fiber optic connector of any of claims 1-7, wherein the stop assembly comprises a first stop member (36) and a second stop member (37), the first stop member (36) comprising at least four stop slots (364), the second stop member (37) comprising at least four stop holes (35), one end of the ferrule (33) being connected to the stop slots (364) and the other end passing through the stop holes (35) and being exposed at the connection end; the elastic pieces (32) are sleeved on the ceramic ferrule (33) one by one, and two ends of the elastic pieces are respectively abutted to the first limiting piece (36) and the second limiting piece (37).

9. The fiber optic connector of any of claims 1-7, wherein the stop assembly includes a third stop (38) and a fourth stop (39), the third stop (38) including at least four stop slots (364), the fourth stop (39) being connected to the third stop (38) and forming the stop aperture (35) with the stop slots (364); the ceramic ferrule (33) passes through the limiting hole (35), the elastic piece (32) is sleeved on the outer side of the ceramic ferrule (33), and two ends of the elastic piece are respectively abutted with the limiting assembly and the stop piece (31).

10. The fiber optic connector of claim 9, wherein the ferrule (33) is provided with a bayonet (332) adapted to the limit slot (364), the ferrule (33) being limited to the limit aperture (35) by the bayonet (332).

11. A connection assembly, comprising at least two optical fiber connectors according to any one of claims 1 to 10, wherein the outer frame (2) of one optical fiber connector is the male frame (220) to form a connector male end (100), the outer frame (2) of the other optical fiber connector is the female frame (210) to form a connector female end (200), and the connector male end (100) is detachably connected with the connector female end (200); or comprises two said connector male ends (100) and an adapter (300), said connector male ends (100) being connected to the same adapter (300).