Optical fiber connector

Abstract

The present invention mainly relates to an optical fiber connector, comprising: at least one ceramic ferrule, which is used to configure an optical fiber; an internal body, which is provided with a front end, which is used to configure and extend the at least one ceramic ferrule; a rotating component, which has a limiting portion and a locking portion, the limiting portion is configured to be rotatable relative to the internal body, and the locking portion is configured to be movable toward or away from the internal body with the limiting portion as the axis; an outer shell, at least a portion of which is sleeved on the internal body; the outer shell can move relative to the internal body to push the rotating component to rotate, so that the locking portion is close to or away from the internal body.

Description

Technical Field

[0001] The present invention mainly relates to an optical fiber connector. Background Art

[0002] Fiber optic connector is a common device in the field of communication, which mainly plays the role of communication between devices, especially for dual-core fiber optic connector, which is increasingly recognized for its high density, high bandwidth and bidirectional interconnection. The existing fiber optic connector and adapter fixing form is as follows: Application No.: 2017100449692, named fiber optic connector and cable assembly, system and method including the same patent, which discloses a flexible latch arm, and by pulling the handle to make the shell part push the latch arm to bend inwardly to the connector body, so as to achieve the separation of the fiber optic connector and the adapter. However, this design requires a flexible latch arm to be provided on the fiber optic connector, which means that the latch arm for cooperating with the adapter needs to have a certain distance from the connector body, otherwise the deflection of the latch arm is not enough and cannot be completely separated from the adapter, and such a design invisibly increases the overall volume of the fiber optic connector. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an optical fiber connector, which is implemented by the following technical solutions:

[0004] An optical fiber connector, comprising:

[0005] At least one ceramic ferrule, the ceramic ferrule is used to configure the optical fiber;

[0006] an inner body, the inner body being provided with a front end, the front end being used to configure and extend the at least one ceramic ferrule;

[0007] A rotating component, the rotating component having a limiting portion and a locking portion, the limiting portion being configured to be rotatable relative to the inner body, and the locking portion being configured to be movable toward or away from the inner body with the limiting portion as an axis;

[0008] The outer shell is at least partially sleeved on the inner body; the outer shell can move relative to the inner body to push the rotating component to rotate, so that the locking portion is close to or away from the inner body.

[0009] Preferably, at least two ceramic ferrules are provided, and each of the ceramic ferrules is configured to be located in the same plane.

[0010] Preferably, the rotating component is arranged on a plane where each of the ceramic ferrules is located.

[0011] Preferably, the rotating component is arranged at a plane away from the respective ceramic ferrules.

[0012] Preferably, a spring is provided between the inner body and the outer body, and the outer body is returned to its original position after being moved relative to the inner body by an external force through the spring.

[0013] Preferably, the device further comprises a gripping portion, wherein the gripping portion extends along the rear end of the outer shell.

[0014] Preferably, the outer shell is provided with a bayonet, the bayonet has a bayonet wall close to the front end, and a bayonet slope is provided at a position of the bayonet close to the rear end;

[0015] The outer side of the rotating component away from the inner body is provided with a rotating component slope surface;

[0016] When the optical fiber connector is fixed on the adapter and the outer shell moves toward the rear end, the bayonet wall cooperates with the slope of the rotating component to force the rotating component to rotate, so that the locking portion approaches the inner body, so that the locking portion extending from the bayonet is accommodated in the outer shell;

[0017] When the locking portion is in the stored state and the outer shell moves toward the front end, the bayonet slope cooperates with the rotating component to force the rotating component to rotate, so that the locking portion is away from the internal body, thereby allowing the locking portion stored in the outer shell to extend from the bayonet.

[0018] Preferably, the outer shell and the rotating component are provided with a bayonet, a slide and an extension arm, and the slide is configured so that at least one end of the slide is close to the inner body and the other end is away from the inner body;

[0019] When the outer shell moves toward the rear end or the front end, the extension arm is driven by the sliding opening to rotate the rotating component so that the locking portion approaches or moves away from the inner body, thereby causing the locking portion extending from the bayonet to be received in the outer shell or causing the locking portion received in the outer shell to extend from the bayonet.

[0020] Preferably, the inner body and the limiting portion cooperate with each other through an axial hole and a rotating shaft.

[0021] Preferably, a main body portion of the rotating component close to the limiting portion is arranged along the inner body, and a main body portion of the rotating component close to the locking portion is bent toward an outer side away from the inner body.

[0022] Preferably, it further comprises a polar component provided with a slider portion;

[0023] The main body of the optical fiber connector is provided with dovetail slide grooves on both opposite sides. The dovetail slide groove is located at the front end and is provided with an opening allowing the slider part of the polar component to be inserted.

[0024] Preferably, the rotating components are arranged on both sides of the dovetail slot.

[0025] Preferably, it further comprises a polar component provided with a plug-in portion;

[0026] Insertion slots are arranged on opposite sides of the main body of the optical fiber connector, and the insertion slots allow the inserting portion of the polar component to be detachably inserted and fixed.

[0027] Preferably, four rotating parts are provided, which are respectively located at four corners of the optical fiber connector which is rectangular as a whole.

[0028] The beneficial effects of the present invention are:

[0029] The optical fiber connector provided by the present invention is provided with a rotating component, wherein a limiting portion at one end of the rotating component is rotatable relative to an internal body as an axis, and a locking portion at the other end can be extended or retracted from the optical fiber connector when rotating. The entire rotating component can be a hard part, and the power for extension and retraction is directly provided by an outer shell that moves forward and backward along the internal body. Such a setting can reduce the volume of the optical fiber connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the exploded structure of the first embodiment of the optical fiber connector of the present invention;

[0031] Figure 2 It is a schematic diagram of the use state of the third embodiment of the optical fiber connector of the present invention;

[0032] Figure 3 It is a schematic structural diagram of the optical fiber connector of the first embodiment of the present invention from a front perspective;

[0033] Figure 4 It is a schematic structural diagram of the first embodiment of the optical fiber connector of the present invention from a second viewing angle;

[0034] Figure 5 It is a structural schematic diagram of a second embodiment of the optical fiber connector of the present invention;

[0035] Figure 6 It is a schematic cross-sectional structure diagram of an outer shell of a first embodiment of an optical fiber connector of the present invention;

[0036] Figure 7 It is a schematic cross-sectional structure diagram of the outer shell of the first embodiment of the optical fiber connector of the present invention when it is close to the front end;

[0037] Figure 8 It is a schematic cross-sectional structure diagram of the outer shell of the first embodiment of the optical fiber connector of the present invention when it is close to the rear end;

[0038] Fig. 9 It is a structural schematic diagram of the second embodiment of the optical fiber connector of the present invention when the rotating component is moved out;

[0039] Fig.10 It is a structural schematic diagram of a rotating component of a second embodiment of the optical fiber connector of the present invention;

[0040] Fig.11 is a schematic diagram of the exploded structure of a third embodiment of the optical fiber connector of the present invention;

[0041] Fig.12 It is a schematic structural diagram of an adapter with double adapter bayonet of the optical fiber connector of the present invention;

[0042] Fig.13 It is a schematic structural diagram of an adapter with four adapter bayonet ports of the optical fiber connector of the present invention.

[0043] Figure numerals: ceramic ferrule 1, ceramic ferrule spring 2, internal body 3, front end 4, rotating component 5, limiting portion 6, locking portion 7, storage port 8, rotating shaft 9, outer shell 10, spring 11, gripping portion 12, fixing block 13, tail seat 14, optical cable 15, bayonet 16, polarity component 17, slider portion 18, dovetail groove 19, second polarity component 20, plug-in portion 21, bayonet wall 22, bayonet slope 23, rotating component slope 24, slide 25, extension arm 26, mark 27, rotating shaft hole 28, plug-in slot 29, adapter bayonet 30, polarity bayonet 31, adapter 32, rib 33. DETAILED DESCRIPTION

[0044] The preferred mechanism and motion realization method of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] An optical fiber connector, such as Figure 1 and Figure 2 As shown, including:

[0046] At least one ceramic ferrule 1, the ceramic ferrule 1 is used to configure the optical fiber; the ceramic ferrule 1 is mainly used to carry and fix the optical fiber, and it is configured according to different optical fiber diameters. At the same time, the ceramic ferrule 1 can also be ground to a certain angle according to the requirements of the adapter interface after being fixed to the optical fiber. The rear end of the ceramic ferrule 1 is generally configured with a ceramic ferrule seat, which can be used to fix with the main body of the optical fiber connector and abut the ceramic ferrule spring 2. This setting belongs to the existing conventional setting and will not be elaborated here. For a dual-core optical fiber connector, two ceramic ferrules 1 are provided and configured to be located in the same plane. It is arranged along the flat rectangular optical fiber connector. Of course, more ceramic ferrules 1 can be arranged according to needs. In this patent, a detailed description is given by taking a dual-core optical fiber connector as an example.

[0047] An internal body 3 is provided with a front end 4, and the front end 4 is used to configure and extend the ceramic ferrule 1; the rear end opposite to the front end 4 is the tail direction of the optical fiber connector; here, the internal body 3 in this patent mainly refers to a shell for covering and protecting the ceramic ferrule spring 2 and the optical fiber located inside for the convenience of explanation, but it is not specific. The internal body 3 can be understood as including the internal structure of most optical fiber connectors relative to the movable outer shell, and can include the ceramic ferrule spring 2 and the end cover 14 located at the rear end of the internal body 3 as a whole, and the end cover 14 has a spring seat to configure the ceramic ferrule spring 2 and the spring 11 and other structures.

[0048] A rotating component 5, wherein the rotating component 5 has a limiting portion 6 and a locking portion 7, wherein the limiting portion 6 is configured to be rotatable relative to the internal body 3, and the locking portion 7 is configured to be movable toward or away from the internal body 3 with the limiting portion 6 as the axis; the main body portion of the rotating component 5 close to the limiting portion 6 is arranged along the internal body 3, that is, it generally runs toward the rear end along the internal body 3; at a position close to the bayonet 16, that is, the main body portion of the rotating component 5 close to the locking portion 7 is bent toward the outside away from the internal body 5. A similar receiving opening 8 is provided at the front end 4 of the internal body 3, and the interior of the receiving opening 8 receives the limiting portion 6, and the portion facing forward can abut against the limiting portion 6, and the front end of the limiting portion 6 is configured as an arc shape as a whole, so that it is convenient to rotate in the receiving opening 8. It should be noted that the rotation does not require a large range, and it is only necessary to allow the locking portion 7 to be extended and stored; this storage-type configuration mode makes the limiting portion 6 and the internal body 3 not completely relatively fixed, and only when the optical fiber connector is inserted into the adapter, the rotating component 5 is restricted at both the front and rear ends, and the locking portion 7 can only rotate after being subjected to force. Since there is no need for a more complicated structure to make the limiting portion 6 and the internal body 3 completely relatively fixed, this configuration mode can save space to the greatest extent, and both the length and width of the rectangular cross-sectional projection of the connector can be greatly reduced, because the rotating component 5 is configured as a sheet as a whole, without too many other components; Of course, a rotating shaft 9 can also be set on the limiting part 6, and an axial hole can be set on the internal body 3, so that the limiting part 6 can be fixed and rotated relative to the internal body 3; the rotating part 5 can be set on the plane where each of the ceramic ferrules 1 is located as in the prior art, or it can be set on a plane away from the plane where each of the ceramic ferrules 1 is located, that is, a plane parallel to the plane where the ceramic ferrules 1 are located. In this way, the rotating part 5 can be set on the four corners of the optical fiber connector which is rectangular as a whole, so that the four corners of the optical fiber connector are fixed on the adapter with card points, which is more firmly and stably fixed and not easy to shake; and the locking part 7 mainly relies on the vertical wall near the rear end that is nearly perpendicular to the optical fiber connector body in the extended state to clamp the adapter with the card slot. When the adapter is inserted, the front end of the optical fiber connector abuts against the inside of the adapter, and the vertical wall abuts against the card slot of the adapter, so that relative fixation is achieved.

[0049] At least a portion of the outer shell 10 is sleeved on the inner body 3 ; the outer shell 10 can move relative to the inner body 3 to push the rotating component 5 to rotate, so that the locking portion 7 is close to or away from the inner body. The outer shell 10 has a bayonet 16. When the outer shell 10 moves forward and backward relative to the internal main body 3, the bayonet 16 pushes the rotating component 5 forward and backward to store or push it out, and a spring 11 is arranged between the outer shell 10 and the internal main body 3; the spring 11 can keep the outer shell 10 in a state of being located at the front end at all times when no force is applied, that is, it abuts against the rotating component 5 to keep the locking portion 7 extending from the optical fiber connector, and when the outer shell 10 is pulled toward the rear end, the outer shell 10 abuts against the other end of the rotating component 5 to retract the rotating component 5; since the overall movement of the rotating component 5 is related to the outer shell 10, its resilience is also indirectly provided by the spring 11 between the outer shell 10 and the internal main body 3, and in fact, the arrangement of the spring 11 between the outer shell 10 and the internal main body 3 belongs to the existing conventional design, so compared with the prior art, the solution of this patent utilizes the spring 11, which reduces the number of parts and can also effectively reduce the volume of the optical fiber connector.

[0050] It also includes a gripping portion 12, which extends along the rear end of the outer shell 10. The gripping portion 12 can be a structure similar to a pull rod, and in this patent, a tail sleeve is used. The tail sleeve gripping portion 12 is relatively fixed with the outer shell 10 through a fixing block 13. When the tail sleeve is pulled, it can move relative to the tail seat 14 and the optical cable 15. In this way, the outer shell 10 is pulled backward and the gripping portion 12 and the outer shell 10 can be returned to their original positions together under the drive of the spring 11 after the outer shell 10 is released.

[0051] like Figure 3 and Figure 4 As shown, it also includes a polarity component 17, which is provided with a slider portion 18; dovetail slots 19 are provided on opposite sides of the main body of the optical fiber connector, and the dovetail slots 19 are located at the front end and have an opening that allows the slider portion 18 of the polarity component 17 to be inserted; the dovetail slots 19 extend from the front end head of the inner body 3 to the outer shell 10, and finally terminate on the outer shell 10, so that the position of the polarity component 17 can be changed by sliding;

[0052] Or Figure 5 As shown, another solution is that the second polarity component 20 is provided with a plug-in portion 21, and plug-in grooves 22 are provided on opposite sides of the main body of the optical fiber connector. The plug-in groove 29 allows the plug-in portion 21 of the second polarity component 20 to be detachably inserted and fixed, so that the position of the second polarity component 20 can be replaced by plugging; the polarity of the optical fiber connector can be changed by changing the position of the polarity component and cooperating with the adapter.

[0053] Since the entire optical fiber connector has a symmetrical structure, different markings 27, such as A and B, are provided on the surface where the polarity components are located for easy identification.

[0054] Embodiment 1:

[0055] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the outer shell is provided with a bayonet 16, the bayonet 16 has a bayonet wall 22 close to the front end direction, and a bayonet slope 23 is provided at a position of the bayonet 16 close to the rear end;

[0056] The rotating component 5 is provided with a rotating component slope 24 on the outer side relatively away from the inner body 3;

[0057] When the optical fiber connector is fixed on the adapter and the outer shell 10 moves toward the rear end, the bayonet wall 22 cooperates with the rotating component slope 24 to force the rotating component 5 to rotate around the limiting portion 6, so that the locking portion 7 is close to the internal body 3, so that the locking portion 7 extending from the bayonet 16 is received in the outer shell 10; it should be noted that since the limiting portion 6 is in the receiving port 8, it is restricted in the direction toward the front end, and when the locking portion 7 is fixed on the adapter, the rear vertical wall of the locking portion 7 abuts against the bayonet of the adapter, so that when the bayonet wall 22 moves toward the rear end, the rotating component 5 can only rotate inward and will not move backward with the outer shell 10;

[0058] When the locking portion 7 is extended out of the bayonet 16, the limiting portion 6 is restrained at the front end, and the gap between the bottom of the rotating component 5 close to the inner body 3 and the inner body 3 becomes larger and larger toward the rear end, and this gap is the movable space of the rotating component 5; thus, when the bayonet wall 22 moves toward the rear end, the rotating component 5 is pressed down by the slope until it is stored, so that the locking portion 7 is separated from the bayonet of the adapter;

[0059] When the locking portion 7 is in the stored state and the outer shell 10 moves toward the front end, the bayonet slope 23 cooperates with the bottom of the rotating component 5 to force the rotating component 5 to rotate, so that the locking portion 7 is away from the internal main body 3, so that the locking portion 7 stored in the outer shell 10 extends out from the bayonet 16; in the process of the outer shell 10 moving toward the front end, the bayonet slope 23 abuts against the bottom of the locking portion 7, thereby pushing the rotating component 5 to rotate and lift until the locking portion 7 extends out from the bayonet 16.

[0060] In this embodiment, flat rotating parts 5 can be arranged at the four corners of the optical fiber connector, and the corresponding dovetail grooves 19 can be arranged on the plane where the ceramic ferrule 1 is located, that is, between the two rotating parts 5 on the short side of the optical fiber connector, thereby minimizing the volume.

[0061] Embodiment 2:

[0062] like Fig. 9 and Fig.10 As shown, the pushing force mode of the outer shell 10 and the rotating component 5 of this embodiment is different from that of the embodiment 1. Specifically, the outer shell 10 is provided with a sliding opening 25, and the rotating component 5 is provided with an extension arm 26. The sliding opening 25 is configured so that at least one end is close to the other end and away from the inner body 3, that is, the sliding opening 25 is gradually inclined outward toward the rear end relative to the inner body 3, and the extension arm 26 is cylindrical;

[0063] When the outer shell 10 moves toward the rear end or the front end, the sliding opening 25 drives the extension arm 26 to rotate the rotating component 5 so that the locking portion 7 approaches or moves away from the inner body 3, so that the locking portion 7 extending from the bayonet 16 is received in the outer shell 10 or the locking portion 7 received in the outer shell 10 is extended from the bayonet 16;

[0064] In this embodiment, the locking portion 7 is extended or retracted by cooperating with the sliding opening 25 located on the side of the outer shell 10 through the cylindrical extension arm 26. Considering the overall strength of the rotating component 5, the rotating component 5 in this embodiment is divided into two parts, and extension arms 9 are provided on both sides, thereby ensuring the smooth operation of the entire rotating component 5.

[0065] Embodiment 3:

[0066] like Fig.11 As shown, the limiting portion 6 of this embodiment is provided with a rotating shaft 9, and the head of the front end 4 of the corresponding internal body 3 is provided with a rotating shaft hole 28, so that the limiting portion 6 is relatively limited on the internal body 3, and the outer shell 10 and the rotating component 5 are integrally forced to push the locking portion 7 in a manner similar to that of embodiment 1 or embodiment 2;

[0067] Of course, similar to the second embodiment, considering the structural strength of the entire rotating component 5 after the similar rotating shaft 9 or the extension arm 26 is provided, the present embodiment adopts two rotating components 5 arranged opposite to each other.

[0068] like Fig.12 As shown, the adapter 32 in the figure is a solution suitable for two rotating parts 5, the adapter bayonet 30 is used to cooperate with the locking portion 7, and the polarity bayonet 31 is provided on one side; Fig.13As shown, the solution applicable to four rotating components 5 is mainly to set four adapter bayonet sockets 30 accordingly, and the ribs 33 are mainly matched with the dovetail grooves 19 in embodiment 1.

[0069] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical fiber connector, characterized in that: include: At least one ceramic ferrule, the ceramic ferrule is used to configure the optical fiber; an inner body, the inner body being provided with a front end, the front end being used to configure and extend the at least one ceramic ferrule; A rotating component, the rotating component having a limiting portion and a locking portion, the limiting portion being configured to be rotatable relative to the inner body, and the locking portion being configured to be movable toward or away from the inner body with the limiting portion as an axis; An outer shell, at least a portion of which is sleeved on the inner body; the outer shell can move relative to the inner body to push the rotating component to rotate, so that the locking portion moves closer to or away from the inner body; A spring is arranged between the inner body and the outer shell; the spring is used to provide the outer shell with a tendency to move forward; when the outer shell is pushed forward by the spring, the outer shell is used to push the rotating component to extend the locking portion.

2. The optical fiber connector according to claim 1, characterized in that: At least two ceramic ferrules are provided, and each of the ceramic ferrules is configured to be located in the same plane.

3. The optical fiber connector according to claim 2, characterized in that: The rotating component is arranged on the plane where each of the ceramic ferrules is located.

4. The optical fiber connector according to claim 2, characterized in that: The rotating component is arranged at a plane far away from the plane where each of the ceramic ferrules is located.

5. The optical fiber connector according to claim 1, characterized in that: A spring is arranged between the inner body and the outer body, and the outer body is returned to its original position after being moved relative to the inner body by an external force through the spring.

6. The optical fiber connector according to claim 1, characterized in that: A gripping portion is also included, and the gripping portion extends along the rear end of the outer shell.

7. The optical fiber connector according to claim 1, characterized in that: The outer shell is provided with a bayonet, the bayonet has a bayonet wall close to the front end, and a bayonet slope is provided at a position of the bayonet close to the rear end; The outer side of the rotating component away from the inner body is provided with a rotating component slope surface; When the optical fiber connector is fixed on the adapter and the outer shell moves toward the rear end, the bayonet wall cooperates with the slope of the rotating component to force the rotating component to rotate, so that the locking portion approaches the inner body, so that the locking portion extending from the bayonet is accommodated in the outer shell; When the locking portion is in the stored state and the outer shell moves toward the front end, the bayonet slope cooperates with the rotating component to force the rotating component to rotate, so that the locking portion is away from the internal body, thereby allowing the locking portion stored in the outer shell to extend from the bayonet.

8. The optical fiber connector according to claim 1, characterized in that: The outer shell and the rotating component are provided with a bayonet, a slide and an extension arm, and the slide is configured so that at least one end of the slide is close to the inner body and the other end is away from the inner body; When the outer shell moves toward the rear end or the front end, the extension arm is driven by the sliding opening to rotate the rotating component so that the locking portion approaches or moves away from the inner body, thereby causing the locking portion extending from the bayonet to be received in the outer shell or causing the locking portion received in the outer shell to extend from the bayonet.

9. The optical fiber connector according to any one of claims 1 to 8, characterized in that: The inner body and the limiting portion are matched with each other through the shaft hole and the rotating shaft.

10. The optical fiber connector according to any one of claims 1 to 8, characterized in that: The main body portion of the rotating component close to the limiting portion is arranged along the inner body, and the main body portion of the rotating component close to the locking portion is bent toward the outer side away from the inner body.

11. The optical fiber connector according to any one of claims 1 to 7, characterized in that: Also included is a polar component provided with a slider portion; The main body of the optical fiber connector is provided with dovetail slide grooves on both opposite sides. The dovetail slide groove is located at the front end and is provided with an opening allowing the slider part of the polar component to be inserted.

12. The optical fiber connector according to claim 11, characterized in that: The rotating components are arranged on both sides of the dovetail slideway.

13. The optical fiber connector according to any one of claims 1 to 8, characterized in that: Also included is a polar component provided with a plug-in portion; Insertion slots are arranged on opposite sides of the main body of the optical fiber connector, and the insertion slots allow the inserting portion of the polar component to be detachably inserted and fixed.

14. The optical fiber connector according to any one of claims 1, 2 and 4 to 7, characterized in that: There are four rotating parts, which are respectively located at the four corners of the optical fiber connector which is rectangular as a whole.

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