CN220207924U - Optical fiber connector - Google Patents

Abstract

The application provides an optical fiber connector, including shell, first butt joint spare, second butt joint spare and mounting. The shell is internally provided with a cavity, and the cavity is provided with two openings which are arranged in a deviating way. The first butt joint piece, the fixing piece and the second butt joint piece are all accommodated in the cavity. Part of the first butt joint piece passes through an opening and is provided with a first butt joint through hole in a penetrating way. The second butt joint piece is provided with a second butt joint through hole in a penetrating mode and comprises a first surface deviating from the second butt joint through hole. The first butt joint piece is arranged in the second butt joint through hole, so that the first butt joint through hole is in butt joint with the second butt joint through hole. The first surface is provided with a first clamping part. The fixing piece is fixed in the shell and sleeved on the second butt joint piece. The fixture includes a second surface facing the first surface. The second surface is provided with a second clamping part which is used for being clamped with the first clamping part so as to prevent the second butt joint piece from rotating around the central axis direction of the second butt joint through hole. The optical fiber connector is beneficial to improving the butt joint concentricity of optical fibers.

Description

Optical fiber connector

Technical Field

The application relates to the field of optical fiber connection accessories, in particular to an optical fiber connector.

Background

Optical fiber connectors typically include two mating members in which two optical fibers are disposed, respectively, to achieve mating. However, the two butt-joint members may rotate relatively around the central axis direction of the optical fiber, which may result in poor concentricity of the optical fiber butt-joint in the two butt-joint members, and affect the signal transmission effect.

Disclosure of Invention

In view of the foregoing, the present application provides an optical fiber connector that facilitates improving concentricity of optical fiber butt joint.

The application provides an optical fiber connector, which comprises a shell, a first butt joint piece, a second butt joint piece and a fixing piece. The shell is internally provided with a cavity, and the cavity is provided with two openings which are arranged in a deviating way. The first butt joint piece, the fixing piece and the second butt joint piece are all accommodated in the cavity. A part of the first butt joint piece passes through one opening and is provided with a first butt joint through hole in a penetrating way. The second butt joint piece is provided with a second butt joint through hole in a penetrating mode and comprises a first surface deviating from the second butt joint through hole. The first butt joint piece is arranged in the second butt joint through hole, so that the first butt joint through hole and the second butt joint through hole are in butt joint along a first direction. The first surface is provided with a first clamping part. The fixing piece is fixed in the shell and sleeved on the second butt joint piece. The fixing piece comprises a second surface facing the first surface, and a second clamping part is arranged on the second surface. The second clamping part is used for clamping with the first clamping part, and the second clamping part is used for preventing the second butt joint piece from rotating around the central shaft direction of the second butt joint through hole.

In some possible embodiments, the housing includes a first shell and a second shell detachably connected along the first direction, the first shell includes a first shell body and a first stopper, the first stopper is provided adjacent to one opening of the first butt joint piece, the fixing piece further includes a third surface facing away from the second surface and a fourth surface facing toward the first stopper, the third surface is configured to be in interference engagement with the first shell body, and the fourth surface is configured to abut against the first stopper.

In some possible embodiments, the second housing includes a second housing body and a second stop member, the second housing body is detachably connected to the first housing body, the second stop member is disposed in the other opening, the second stop member includes a first abutting portion and a second abutting portion that is opposite to the first abutting portion and is convexly disposed on the first abutting portion, the second abutting through hole penetrates through the first abutting portion and the second abutting portion, the first engaging portion is disposed on the first abutting portion, the second abutting portion is disposed at a distance from the second stop member, the optical fiber connector further includes an elastic member, and opposite ends of the elastic member respectively abut against the first abutting portion and the second stop member.

In some possible embodiments, the second surface includes a first region and a second region adjoining in the first direction, the first region and the second region being aligned along a direction from the first abutment to the second abutment, the first region being inclined with respect to the first direction, the second region extending along the first direction, and an angle between the first region and the second region being an obtuse angle, the first region being configured to abut against the first surface to limit the second abutment.

In some possible embodiments, the first engaging portion is a bump, the second engaging portion is a groove, the second engaging portion is disposed in the first region and the second region, and the first region is further abutted against the first engaging portion.

In some possible embodiments, the second engaging portion includes a first groove portion disposed in the first area and a second groove portion disposed in the second area, the first groove portion is in a truncated cone shape along a section parallel to the first direction, the first groove portion includes a first end with a larger width and a second end with a smaller width, the first end is communicated with the second groove portion, the first engaging portion is configured to be movably disposed in the second groove portion and the first end, and the first engaging portion is further configured to be fixedly engaged with the second end.

In some possible embodiments, the second docking through hole includes a first hole portion and a second hole portion that are communicated with each other and coaxially disposed, and the first docking member is inserted into the first hole portion, and a diameter of the first hole portion is larger than a diameter of the second hole portion.

In some possible embodiments, the first housing body is provided with a third clamping portion, the third clamping portion is disposed at one end of the first housing body, which is away from the first stop member, the second housing body is provided with a fourth clamping portion, which is disposed at one end of the second housing body, which is away from the second stop member, and the fourth clamping portion is clamped at the third clamping portion to connect the first housing body and the second housing body.

In some possible embodiments, the optical fiber connector further comprises an elastic sheath having a through hole therein, and the elastic sheath is configured to be connected to an end of the housing remote from the first mating member such that the through hole communicates with the cavity in the first direction.

In some possible embodiments, a convex buckle is disposed on a surface of the housing facing away from the cavity, a concave buckle is formed by a concave recess on a side wall of the through hole, and the convex buckle is clamped with the concave buckle to connect the elastic sheath and the housing.

In the present application, the second butt-joint member is provided with a first engaging portion, and the fixing member fixed to the housing is provided with a second engaging portion. When the second butt joint piece is inserted into the fixing piece, the second clamping part can be clamped to the first clamping part, the second clamping part can be used for applying a supporting force to the first butt joint piece, and the supporting force can prevent the second butt joint piece from rotating around the central shaft of the second butt joint through hole. Therefore, the optical fiber connector provided by the application can improve the butt-joint concentricity of the single-core optical fiber and the multi-core optical fiber.

Drawings

FIG. 1 is a schematic diagram of an optical fiber connector according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of the fiber optic connector of FIG. 1 taken along line IV-IV;

figure 3 is a cross-sectional view of the fiber optic connector of figure 1 taken along v-v;

FIG. 4 is an exploded view of the fiber optic connector of FIG. 1;

fig. 5 is a schematic connection diagram of the fixing member and the second engaging portion.

Description of the main reference signs

Optical fiber connector 100 housing 10

First housing 11 first housing body 111

First stopper 112 second housing 12

Second stopper 122 of second housing body 121

Cavity 101 opening 102

First butt joint piece 20 first butt joint through hole 21

First surface 301 of second interface 30

Second butt joint through hole 302 first hole portion 303

Second hole portion 304 first abutting portion 31

Second butt joint 32 fixing member 40

Second surface 41 first region 411

Second region 412 third surface 42

Fourth surface 43 first engaging portion 50

The second engaging portion 51 elastic member 60

Third engaging portion 70 and fourth engaging portion 71

Elastic sheath 80 through hole 801

Convex buckle 90 and concave buckle 91

First groove 511 and second groove 512

First end 5111 second end 5112

First direction X

The following detailed description will further illustrate the application in conjunction with the above-described figures.

Detailed Description

The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments.

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear …) in the embodiments of the present application are merely used to explain the relative positions, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture changes, the directional indicators correspondingly change.

Furthermore, the descriptions of "first," "second," and the like in the embodiments of the present application are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

When an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Referring to fig. 1-4, an embodiment of the present application provides an optical fiber connector 100 for mating at least two optical fibers (not shown). The optical fiber connector 100 includes a housing 10, a first mating member 20, a second mating member 30, and a fixing member 40. A cavity 101 is provided in the housing 10. The cavity 101 has two openings 102 arranged facing away from each other, each opening 102 communicating with the cavity 101. The first docking member 20, the fixing member 40 and the second docking member 30 are all accommodated in the cavity 101. The first docking member 20 and the second docking member 30 dock along a first direction X. The fixing member 40 is fixed in the housing 10 and is used for sleeving the second docking member 30 to fix the second docking member 30.

Part of the first docking member 20 passes through an opening 102, and the first docking member 20 is provided with a first docking through hole 21. The central axis direction of the first butt-joint through hole 21 is the first direction X. The second butting member 30 is provided with a second butting through hole 302 in a penetrating manner, and the central axis direction of the second butting through hole 302 is also the first direction X. The second docking member 30 comprises a first surface 301 facing away from the second docking through hole 302. The first surface 301 may be substantially cylindrical and the first surface 301 may extend along the first direction X. The first surface 301 is provided with a first engaging portion 50. In some embodiments, the number of the first engaging portions 50 is at least two, and the at least two first engaging portions 50 are symmetrically disposed in the axial direction of the first surface 301. In the present embodiment, the number of the first engaging portions 50 is two. The first docking member 20 is disposed within the second docking through hole 302 such that the first docking through hole 21 communicates with the second docking through hole 302 in the first direction X. When the optical fibers are spliced, one optical fiber penetrates through the first splicing through hole 21 and penetrates out of the opening 102 adjacent to the first splicing through hole 21, and the other optical fiber penetrates through the second splicing through hole 302 and penetrates out of the opening 102 adjacent to the second splicing through hole 302. The optical fibers arranged in the different butt joint holes are in butt joint at the junction of the butt joint holes. The optical fiber may have multiple cores or a single core.

The fixture 40 includes a second surface 41 facing the first surface 301. The second surface 41 is provided with a second engaging portion 51. In some embodiments, the number of the second engaging portions 51 may be at least two, and the at least two second engaging portions 51 are symmetrically disposed along the central axis direction of the fixing member 40. In the present embodiment, the number of the second engaging portions 51 is two. The second engaging portion 51 is for engaging with the first engaging portion 50. The second engaging portion 51 is used for preventing the second docking member 30 from rotating around the central axis direction of the second docking through hole 302.

In the present application, the second butt joint 30 is provided with a first engaging portion 50, and the fixing member 40 fixed to the housing 10 is provided with a second engaging portion 51. When the second docking member 30 is inserted into the fixing member 40, the second engaging portion 51 may be engaged with the first engaging portion 50, and the second engaging portion 51 may be used to apply a holding force to the first docking member 20, where the holding force can prevent the second docking member 30 from rotating around the central axis of the second docking through hole 302. Thus, the optical fiber connector 100 provided by the present application can improve the butt concentricity of single-core and multi-core optical fibers.

In some embodiments, referring to fig. 2 and 5, the second surface 41 includes a first region 411 and a second region 412 that adjoin in a first direction X. The first region 411 and the second region 412 are aligned in a direction from the first docking member 20 to the second docking member 30. The first region 411 is inclined with respect to the first direction X. The second region 412 extends along the first direction X. And the angle between the first region 411 and the second region 412 is an obtuse angle. The first area 411 is configured to abut against the first surface 301, thereby playing a limiting role on the second docking member 30, and preventing the second docking member 30 from being separated from the fixing member 40 when leaning against a side of the first docking member 20. The shape of the second surface 41 is beneficial to improving the limit stability of the second butting piece 30, so that the parallelism of the butting end surfaces of the first butting piece 20 can be improved.

In some embodiments, referring to fig. 3 to 5, the first engaging portion 50 is a bump. The second engaging portion 51 is a groove. The second engaging portion 51 is provided in the first region 411 and the second region 412. The first area 411 further abuts against the first engaging portion 50, so as to further improve the limit stability of the second abutting member 30.

In some embodiments, referring to fig. 5, the second engagement portion 51 includes a first groove portion 511 provided in the first region 411 and a second groove portion 512 provided in the second region 412. The first groove portion 511 has a truncated cone shape in a section parallel to the first direction X. The first slot 511 includes a first end 5111 having a greater width and a second end 5112 having a smaller width. The first end 5111 communicates with the second slot portion 512. The first engaging portion 50 (see fig. 4) is movably disposed in the second groove portion 512 and the first end 5111. The first engaging portion 50 is further configured to be fixedly engaged with the second end 5112. The second engaging portion 51 is shaped to reduce resistance in the process of engaging the first engaging portion 50 with the second engaging portion 51.

In some embodiments, referring to fig. 2 and 3, the second docking through hole 302 includes a first hole portion 303 and a second hole portion 304 that are communicated with each other and coaxially disposed. The first docking member 20 is inserted into the first hole portion 303. The diameter of the first hole portion 303 is larger than the diameter of the second hole portion 304. The second docking through hole 302 is shaped to facilitate user control of the insertion position of the first docking member 20.

In some embodiments, referring to fig. 2 to 3, the housing 10 includes a first case 11 and a second case 12 detachably connected in a first direction X. The first housing 11 includes a first housing body 111 and a first stopper 112. Optionally, the first housing body 111 is provided with a third engaging portion 70. Optionally, the third engaging portion 70 is disposed at an end of the first housing body 111 facing away from the first stopper 112. Alternatively, the first housing 11 may be a plastic member, and the first housing 11 may be obtained by integral injection molding. The third engaging portion 70 may be a hole structure, a groove structure, or a cam structure, for example. In this embodiment, the third engaging portion 70 has a hole structure. An opening 102 adjacent to the first docking member 20 is provided at the first stop 112. The mount 40 further comprises a third surface 42 facing away from the second surface 41 and a fourth surface 43 facing towards the first stop 112. The third surface 42 is configured to be in interference engagement with the first housing body 111. The fourth surface 43 is configured to abut against the first stop 112 to achieve the limiting fixation of the fixing member 40 to the housing 10. Fixing the fixing member 40 by interference fit facilitates separation processing of the housing 10 and the fixing member 40 to improve yield of the optical fiber connector 100. In addition, the separation of the housing 10 into the first housing 11 and the second housing 12 facilitates the shortening of the insertion path of the fixing member 40, thereby facilitating the improvement of the assembling convenience of the optical fiber connector 100.

In other embodiments, the fixing member 40 may be integrally formed with the housing 10, and in this case, the housing 10 may not include the first stopper 112.

In some embodiments, with continued reference to fig. 2 and 3, the second housing 12 includes a second housing body 121 and a second stop 122. The second housing body 121 is detachably connected to the first housing body 111. The second housing body 121 is detachably connected to the first housing body 111 by, for example, screw connection, snap connection, or magnetic connection. In some embodiments, the second housing body 121 is provided with a fourth engagement portion 71. Optionally, the fourth engaging portion 71 is disposed at an end of the second housing body 121 facing away from the second stop 122. The fourth engaging portion 71 may be, for example, a male buckle structure, a hole structure, or a groove structure. In the present embodiment, the fourth engaging portion 71 is a male buckle structure and is disposed on the outer surface of the second housing body 121. Therefore, the second housing body 121 is inserted into the partial cavity 101 formed by surrounding the first housing body 111, so that the fourth engaging portion 71 is engaged with the third engaging portion 70 to connect and realize the detachable connection of the first housing body 111 and the second housing body 121, thereby enabling the detachable connection of the first housing 11 and the second housing 12. In another embodiment, the fourth engaging portion 71 of the male buckle structure may be disposed on the inner surface of the second housing body 121. At this time, the first housing body 111 may be inserted into the partial cavity 101 formed by surrounding the second housing body 121, so that the fourth engaging portion 71 is engaged with the third engaging portion 70.

Alternatively, the second housing 12 may be a plastic piece, and the second housing 12 may be obtained by integral injection molding. The other opening 102 is provided in the second stopper 122. The second butt joint 30 includes a first butt joint portion 31 and a second butt joint portion 32 protruding from the first butt joint portion 31 away from the first butt joint 20. The second docking through hole 302 penetrates the first docking portion 31 and the second docking portion 32. The first engaging portion 50 is provided in the first abutting portion 31. The second abutting portion 32 is disposed at intervals on the second stopper 122. The fiber optic connector 100 also includes an elastic member 60. Opposite ends of the elastic member 60 respectively abut against the first abutting portion 31 and the second stopping member 122. The elastic member 60 may be a spring, for example. The elastic member 60 can provide a buffering force for the second docking member 30. In the present embodiment, the holding force applied by the housing 10 is transferred to the first docking portion 31 through the elastic member 60 and cooperates with the holding force applied by the fixing member 40 to the second docking member 30 to limit the second docking member 30 in the cavity.

In other embodiments, the end of the second docking member 30 facing away from the elastic member 60 may abut against the first stop member 112, and the second docking member 30 is limited in the cavity 101 only by the abutting force applied by the housing 10.

In some embodiments, referring to fig. 1-4, the fiber optic connector 100 further includes an elastic sheath 80. The elastic sheath 80 is provided with a through hole 801 therein and is configured to be connected to an end of the housing 10 remote from the first docking member 20 such that the through hole 801 communicates with the cavity 101 in the first direction X. In this embodiment, the elastic sheath 80 is connected to the second stopper 122. During the splicing process of the optical fibers, the optical fibers sleeved in the second splicing through hole 302 also pass out of the through hole 801 of the elastic sheath 80. Illustratively, the material of the elastomeric sheath 80 may be one of rubber or silicone. The provision of the elastic sheath 80 can provide stress buffering for the optical fiber, thereby preventing concentration of bending stress of the optical fiber. Therefore, the optical fiber connector 100 of the present application is provided with the elastic sheath 80, so that the protection degree of the optical fiber connector 100 to the optical fiber can be improved.

In some embodiments, referring to fig. 2-4, the surface of the housing 10 facing away from the cavity 101 is provided with tabs 90. In this embodiment, the protruding buckle 90 is disposed on a surface of the second stop 122 facing away from the opening 102. The sidewall of the through hole 801 is recessed to form a recess 91. The male buckle 90 is engaged with the female buckle 91 to connect the elastic sheath 80 and the housing 10. When the elastic sheath 80 and the housing 10 are connected, a part of the second stopper 122 is disposed in the through hole 801.

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 structural changes made by the specification and drawings of the present application or direct/indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims (10)

1. The optical fiber connector comprises a shell, a first butting piece and a second butting piece, wherein a cavity is formed in the shell, and the cavity is provided with two openings which are arranged in a deviating mode;

the first butt joint part penetrates through the opening and is provided with a first butt joint through hole in a penetrating mode, the second butt joint part is provided with a second butt joint through hole in a penetrating mode and comprises a first surface deviating from the second butt joint through hole, the first butt joint part is arranged in the second butt joint through hole, the first butt joint through hole and the second butt joint through hole are in butt joint along a first direction, and the first surface is provided with a first clamping part;

the fixing piece is fixed in the shell and sleeved on the second butt joint piece, the fixing piece comprises a second surface facing the first surface, a second clamping part is arranged on the second surface and used for clamping the first clamping part, and the second clamping part is used for preventing the second butt joint piece from rotating around the central shaft direction of the second butt joint through hole.

2. The fiber optic connector of claim 1, wherein the housing comprises first and second housings removably connected in the first direction, the first housing comprising a first housing body and a first stop, the first stop being provided adjacent to one of the openings of the first abutment, the securing member further comprising a third surface facing away from the second surface and a fourth surface facing toward the first stop, the third surface configured to be in interference engagement with the first housing body, the fourth surface configured to abut against the first stop.

3. The optical fiber connector according to claim 2, wherein the second housing comprises a second housing body and a second stopper, the second housing body is detachably connected to the first housing body, the other opening is formed in the second stopper, the second stopper comprises a first abutting portion and a second abutting portion which is away from the first abutting portion and protrudes from the first abutting portion, the second abutting through hole penetrates through the first abutting portion and the second abutting portion, the first engaging portion is formed in the first abutting portion, the second abutting portion is arranged at the second stopper at intervals, and the optical fiber connector further comprises an elastic member, and opposite ends of the elastic member respectively abut against the first abutting portion and the second stopper.

4. A fiber optic connector as claimed in any one of claims 1 to 3, wherein the second surface includes first and second regions adjoining in the first direction, the first and second regions being aligned in a direction from the first abutment to the second abutment, the first region being inclined relative to the first direction, the second region extending in the first direction and an angle between the first and second regions being an obtuse angle, the first region being adapted to bear against the first surface to retain the second abutment.

5. The optical fiber connector according to claim 4, wherein the first engaging portion is a bump, the second engaging portion is a groove, the second engaging portion is disposed in the first region and the second region, and the first region is further abutted against the first engaging portion.

6. The optical fiber connector according to claim 5, wherein the second engagement portion includes a first groove portion provided in the first region and a second groove portion provided in the second region, the first groove portion being truncated cone-shaped in a section parallel to the first direction, the first groove portion including a first end having a larger width and a second end having a smaller width, the first end being in communication with the second groove portion, the first engagement portion being configured to be movably provided in the second groove portion and the first end, the first engagement portion being further configured to be fixedly engaged with the second end.

7. The optical fiber connector according to claim 1, wherein the second mating through hole includes a first hole portion and a second hole portion which are communicated with each other and coaxially provided, the first mating member being inserted into the first hole portion, a diameter of the first hole portion being larger than a diameter of the second hole portion.

8. The optical fiber connector according to claim 3, wherein the first housing body is provided with a third engaging portion, the third engaging portion is provided at an end of the first housing body facing away from the first stopper, the second housing body is provided with a fourth engaging portion, the fourth engaging portion is provided at an end of the second housing body facing away from the second stopper, and the fourth engaging portion is engaged with the third engaging portion to connect the first housing body and the second housing body.

9. The fiber optic connector of claim 1, further comprising an elastic jacket having a through-hole disposed therein, and wherein the elastic jacket is configured to be coupled to an end of the housing remote from the first mating member such that the through-hole communicates with the cavity in the first direction.

10. The fiber optic connector of claim 9, wherein a surface of the housing facing away from the cavity is provided with a male clasp, and a sidewall of the through hole is recessed to form a female clasp, the male clasp being engaged with the female clasp to connect the elastic sheath and the housing.