Optical fiber connector

Abstract

The utility model discloses an optical fiber connector, which comprises a mounting seat, an end head assembly and a tail sleeve assembly, a wiring channel is arranged in the mounting seat, the mounting seat comprises a main body, a connecting part and an extending part, the connecting part and an extending cover are integrally formed and connected to two opposite sides of the main body, and the wiring channel penetrates through the connecting part and the extending part; the end head assembly is connected to the extension part; the tail sleeve assembly is connected to the connecting part. In the technical scheme of the utility model, the mounting seat adopts the structure that the main body, the connecting part and the extension part are integrally formed, compared with the prior art, the extension part can keep the function of connecting the end head assembly, and the extension part and the main body are integrally formed and connected, so that when the main body moves, the extension part synchronously moves, and relative movement does not exist between the main body and the extension part; the concentricity of wiring channels in the two parts is uniform; in addition, the structure can reduce the number of parts of the whole optical fiber connector, reduce the assembly process, reduce the assembly difficulty, and is lower in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber communication, and particularly relates to an optical fiber connector. Background Art

[0002] An optical fiber connector is an essential device for connecting various optical devices and modules in an optical fiber communication system, and is used to couple two optical element ports to achieve the continuation of optical fiber signal transmission. With the continuous development of optical fiber communication technology, the use of optical fiber connectors is becoming more and more common.

[0003] The basic structure of the existing optical fiber connector includes a connector head, a tail sleeve, a card seat, an extension cover, an optical fiber sheath, a ferrule, etc. Among them, the card seat and the extension cover are two independent and separated structures, which makes it inevitable that there is an assembly gap between the two, resulting in relative movement between the card seat and the extension cover when the optical fiber connector moves, and the concentricity cannot be guaranteed. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose an optical fiber connector, aiming to improve the concentricity of the internal structure of the optical fiber connector.

[0005] To achieve the above object, an optical fiber connector proposed by the utility model includes:

[0006] A mounting seat, a wire routing channel is arranged in the mounting seat, the mounting seat includes a main body, a connecting portion and an extending portion, the connecting portion and the extending portion are integrally formed and connected to opposite sides of the main body, and the wire routing channel penetrates through the connecting portion and the extending portion;

[0007] A head end assembly, connected to the extending portion; and

[0008] A tail sleeve assembly, connected to the connecting portion.

[0009] In some embodiments of the utility model, the tail sleeve assembly includes a locking sleeve and an outer sheath, the locking sleeve is detachably connected to the connecting portion, and the outer sheath is connected to the main body and sleeved outside the locking sleeve.

[0010] In some embodiments of the utility model, a thread is provided on the outer peripheral wall of the connecting portion, and the locking sleeve is threadedly connected to the connecting portion.

[0011] In some embodiments of the utility model, a stress notch is further provided on the peripheral wall of the connecting portion.

[0012] In some embodiments of the utility model, the outer sheath includes a sleeve body and an elastic arm integrally connected to one side of the sleeve body, the sleeve body is connected to the main body, and the elastic arm is used to press against the clamping arm of the head end assembly;

[0013] The included angle γ between the surface of the elastic arm close to the mounting base and the surface of the sleeve body is not greater than 45 degrees.

[0014] In some embodiments of the present invention, anti-slip patterns are provided on the surface of the elastic arm away from the mounting base.

[0015] In some embodiments of the present invention, the end head assembly includes a connection head, an insertion core, and a spring. The connection head is snap-connected to the extension portion. A receiving cavity is provided in the connection head. The insertion core is disposed in the receiving cavity. The spring is sleeved outside the insertion core and is pressed between the insertion core and the mounting base.

[0016] In some embodiments of the present invention, clamping holes are formed in opposite side walls of the receiving cavity, and two clamping protrusions are correspondingly provided on the outer peripheral wall of the extension portion. The two clamping protrusions are respectively clamped in the two clamping holes.

[0017] In some embodiments of the present invention, the optical fiber connector is a two-core connector, and the mounting base is formed with two spaced extension portions.

[0018] In some embodiments of the present invention, the two extension portions are respectively provided with the clamping protrusions on the two sides away from and close to each other.

[0019] In the technical solution of the present invention, the mounting base adopts a structure integrally formed by a main body, a connecting portion, and an extension portion. Compared with the prior art, the extension portion can not only retain the function of connecting the end head assembly, but also, due to the integral connection between the extension portion and the main body, when the main body moves, the extension portion moves synchronously, and there is no relative movement between the two. The concentricity of the wire routing channels inside the two is unified. In addition, this structure can reduce the number of parts of the overall optical fiber connector, reduce the assembly process, lower the assembly difficulty, and the manufacturing cost is lower. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the optical fiber connector provided by the present invention;

[0022] Figure 2 It is an exploded view of an embodiment of the optical fiber connector provided by the present invention;

[0023] Figure 3Schematic diagram of the installation shell structure in the optical fiber connector provided by the present utility model;

[0024] Figure 4 Schematic diagram of another perspective of the installation shell of the optical fiber connector provided by the present utility model;

[0025] Figure 5 Schematic diagram of the structure of the installation shell and the tail sleeve assembly in the optical fiber connector provided by the present utility model.

[0026] Explanation of the reference numerals in the drawings:

[0027] 100, optical fiber connector; 10, mounting base; 101, wire routing channel; 11, main body; 12, connecting portion; 121, stress notch; 13, extending portion; 131, clamping projection; 20, end head assembly; 21, connecting head; 211, accommodating cavity; 212, clamping hole; 213, clamping arm; 22, ferrule; 23, spring; 30, tail sleeve assembly; 31, locking sleeve; 32, outer sheath; 321, sleeve body; 322, elastic arm; 3221, anti-slip pattern; 33, heat shrinkable sleeve; 40, dust cap.

[0028] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] Please refer to Figures 1 to 5 , the present utility model provides an optical fiber connector 100, which includes a mounting base 10, a head end assembly 20, and a tail sleeve assembly 30. A wire routing channel 101 is provided in the mounting base 10. The mounting base 10 includes a main body 11, a connecting portion 12, and an extending portion 13. The connecting portion 12 and the extending portion are integrally formed and connected to opposite sides of the main body 11. The wire routing channel 101 runs through the connecting portion 12 and the extending portion 13; the head end assembly 20 is connected to the extending portion 13; the tail sleeve assembly 30 is connected to the connecting portion 12.

[0033] In the technical solution of the present utility model, the mounting base 10 adopts a structure in which the main body 11, the connecting portion 12, and the extending portion 13 are integrally formed. Compared with the prior art, the extending portion 13 can not only retain the function of connecting the head end assembly 20, but also, because the extending portion 13 is integrally formed and connected to the main body 11, when the main body 11 moves, the extending portion 13 moves synchronously, and there is no relative movement between the two, and the concentricity of the wire routing channels 101 inside the two is unified; in addition, this structure can reduce the overall number of parts of the optical fiber connector 100, reduce the assembly process, lower the assembly difficulty, and the manufacturing cost is lower.

[0034] The above-mentioned mounting base 10 is generally made of plastic material and is manufactured through processes such as precision injection molding, machining, and surface treatment; between the head end assembly 20 and the extending portion 13, and between the tail sleeve assembly 30 and the connecting portion 12, a snap-fitting fixing method is generally adopted.

[0035] In some embodiments of the present utility model, the tail sleeve assembly 30 includes a locking sleeve 31 and an outer sheath 32. The locking sleeve 31 is detachably connected to the connecting portion 12, and the outer sheath 32 is connected to the main body 11 and is sleeved outside the locking sleeve 31.

[0036] The locking sleeve 31 can be connected and matched with the connection in an interference plugging manner. In some embodiments of the present invention, a thread is provided on the outer peripheral wall of the connecting portion 12, and the locking sleeve 31 is threadedly connected to the connecting portion 12. With such a setting, the connection strength between the locking sleeve 31 and the connecting portion 12 can be effectively increased, and moreover, the cable anti-disconnection performance of the connector can be improved. The locking sleeve 31 can be a plastic sleeve or an aluminum ring, which is set according to specific circumstances.

[0037] In some embodiments of the present invention, a stress notch 121 is further formed in the peripheral wall of the connecting portion 12. To prevent the internal stress of the connecting portion 12 from being too large and damaged due to the locking member being too tight.

[0038] Furthermore, in some embodiments of the present invention, the outer sheath 32 includes a sleeve body 321 and an elastic arm 322 integrally connected to one side of the sleeve body 321. The sleeve body 321 is connected to the main body 11, and the elastic arm 322 is used to press against the clamping arm of the end head assembly 20; the angle γ between the surface of the elastic arm 322 close to the mounting seat 10 and the surface connected to the sleeve body 321 is not greater than 45 degrees. Specifically, it can be 30 degrees, 35 degrees, 40 degrees, 45 degrees, etc. It should be noted that the elastic arm is generally set as a curved surface. For the curved elastic arm, the angle γ is the angle between the tangent line at the connection of the elastic arm curved surface and the main body surface and the main body surface.

[0039] Through the above solution, the angle between the elastic arm 322 and the main body 11 is small. On the one hand, the distance between the end of the elastic arm 322 and the main body 11 can be reduced. In this way, after the clamping arm of the end head assembly 20 is aligned with the elastic arm 322, pressing the elastic arm 322 to move a small stroke can achieve unlocking, and the force application direction is more towards the main body 11, which is more convenient.

[0040] Furthermore, in some embodiments of the present invention, an anti-slip pattern 3221 is provided on the surface of the elastic arm 322 away from the mounting seat 10. It can effectively increase the unlocking convenience.

[0041] In some embodiments of the present invention, the tail sleeve assembly 30 further includes a heat shrinkable sleeve 33. The heat shrinkable sleeve 33 is connected to one end of the locking sleeve 31 away from the mounting seat 10 and is located inside the outer sheath 32. The heat shrinkable sleeve 33 is used to wrap the cable, playing a role in protecting the cable and preventing the cable from being damaged due to large-angle bending.

[0042] In some embodiments of the present utility model, the end component 20 includes a connector 21, a ferrule 22, and a spring 23. The connector 21 is snap-connected to the extension portion 13. A receiving cavity 211 is provided inside the connector 21. The ferrule 22 is disposed in the receiving cavity 211. The spring 23 is sleeved outside the ferrule 22 and is pressed between the ferrule 22 and the mounting base 10. Since the extension portion 13 and the main body 11 are of an integral structure, the connection strength between the two is relatively high. During the process of assembling the end component 20 to the mounting base 10, there is no need to consider that the assembly causes pressure on the extension portion and affects the assembly accuracy between the extension portion and the main body 11, reducing the assembly requirements.

[0043] There are various ways for the extension portion 13 to be snap-connected to the connector 21. In some embodiments of the present utility model, a snap groove is formed on the outer peripheral wall of the extension portion 13, and a snap hook is provided on the wall of the receiving cavity 211 of the connector 21. The snap hook is snap-connected in the snap groove.

[0044] In some other embodiments of the present utility model, snap holes 212 are formed on the opposite side walls of the receiving cavity 211, and two snap protrusions 131 are correspondingly provided on the outer peripheral wall of the extension portion 13. The two snap protrusions 131 are respectively snap-connected in the two snap holes 212. In this way, the two sides of the connector 21 are evenly stressed during assembly, avoiding skew during installation.

[0045] In some embodiments of the present utility model, the optical fiber connector 100 is a dual-core connector, and the mounting base 10 is formed with two spaced-apart extension portions 13. Since the extension portion 13 and the main body 11 are integrally formed, the distance between the two extension portions 13 will not change due to the assembly gap, and the structural stability is higher.

[0046] Considering that the spring arms 322 of the dual-core connector and the snap arms 213 of the two connectors 21 are arranged on the same side of the two extension portions 13, in order to avoid the snap protrusion 131 abutting against the connector 21 and causing skew during the process of installing the connector 21 to the extension portion 13, resulting in the snap arm being unable to be aligned below the spring arm 322, in some embodiments of the present utility model, the two extension portions 13 are respectively provided with snap protrusions 131 on the two sides far from and close to each other. In this way, the above problems can be effectively avoided during assembly, further facilitating assembly.

[0047] The above description is only an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. An optical fiber connector (100), characterized in that: include: A mounting seat (10), wherein a wiring channel (101) is provided in the mounting seat (10), the mounting seat (10) comprises a main body (11), a connecting portion (12) and an extending portion (13), the connecting portion (12) and the extending portion are integrally formed and connected to opposite sides of the main body (11), and the wiring channel (101) passes through the connecting portion (12) and the extending portion (13); A terminal assembly (20) connected to the extension portion (13); and A tail sleeve assembly (30) is connected to the connecting portion (12).

2. The optical fiber connector (100) according to claim 1, characterized in that: The tail sleeve assembly (30) comprises a locking sleeve (31) and an outer sleeve (32); the locking sleeve (31) is detachably connected to the connecting portion (12); the outer sleeve (32) is connected to the main body (11) and is sleeved on the outside of the locking sleeve.

3. The optical fiber connector (100) according to claim 2, characterized in that: The outer peripheral wall of the connecting portion (12) is provided with threads, and the locking sleeve (31) is threadedly connected to the connecting portion (12).

4. The optical fiber connector (100) according to claim 3, characterized in that: The peripheral wall of the connecting portion (12) is also provided with a stress notch (121).

5. The optical fiber connector (100) according to claim 2, characterized in that: The outer sheath (32) comprises a sheath (321) and an elastic arm (322) integrally connected to one side of the sheath (321), the sheath (321) is connected to the main body (11), and the elastic arm (322) is used to press against the clamping arm of the end assembly (20); An angle γ between a surface of the elastic arm (322) close to the mounting seat (10) and a surface connected to the sleeve body (321) is no greater than 45 degrees.

6. The optical fiber connector (100) according to claim 5, characterized in that: A side of the elastic arm (322) away from the mounting seat (10) is provided with an anti-slip pattern (3221).

7. The optical fiber connector (100) according to any one of claims 1 to 6, characterized in that: The terminal assembly (20) comprises a connector (21), an insert (22) and a spring (23); the connector (21) is snap-connected to the extension portion (13); a receiving cavity (211) is provided in the connector (21); the insert (22) is disposed in the receiving cavity (211); the spring (23) is sleeved outside the insert (22) and is compressed between the insert (22) and the mounting seat (10).

8. The optical fiber connector (100) according to claim 7, characterized in that: The cavity walls on opposite sides of the accommodating cavity (211) are provided with snap-fitting holes (212), and the outer peripheral wall of the extending portion (13) is correspondingly provided with two snap-fitting protrusions (131), and the two snap-fitting protrusions (131) are respectively snap-fitted into the two snap-fitting holes (212).

9. The optical fiber connector (100) according to claim 8, characterized in that: The optical fiber connector (100) is a dual-core connector, and the mounting seat (10) is formed with two spaced-apart extension portions (13).

10. The optical fiber connector (100) according to claim 9, characterized in that: The two extension portions (13) are respectively provided with the clamping protrusions (131) on two sides that are far away from each other and close to each other.

Images