Round self-locking optical fiber mixed connector

Abstract

The utility model relates to the technical field of electrical connectors, in particular to a circular self-locking optical fiber mixed connector, which comprises a connector female end, a connector male end inserted into the connector female end and a push-pull self-locking mechanism used for locking the connector male end and the connector female end, and is characterized in that the connector male end comprises a male end shell and a male end connecting part; the male end connecting part comprises a male end insulator, an optical fiber pin which is inserted into the male end insulator and is used for connecting an optical fiber to transmit an optical signal, and a signal terminal which is inserted into the peripheral side of the optical fiber pin and is used for transmitting an electric signal. The connector female end comprises a female end shell used for being connected with the male end shell in an inserted mode and a female end connecting part which is arranged in the female end shell, matched with the male end connecting part and used for being electrically connected with the male end connecting part. According to the utility model, a high-speed optical signal and a common signal can be mixed to meet various use scenes of the terminal; and by arranging a push-pull self-locking mechanism, connection locking and convenient unlocking are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connectors, in particular to a circular self-locking optical fiber hybrid connector. Background Art

[0002] In modern communications and data transmission, fiber optic connectors are widely used in various high-speed data transmission systems due to their advantages, such as high bandwidth, low loss, and strong anti-interference capabilities. However, traditional fiber optic connectors typically only transmit optical signals and cannot simultaneously transmit electrical signals. This creates inconvenience in many applications, especially those that require simultaneous high-speed data communication and low-speed control signal transmission. Furthermore, in environments with vibration or shock, the fiber optic pins can easily separate due to external vibrations, affecting the transmission of optical signals. Utility Model Content

[0003] In order to solve the problems in the above background technology, the utility model provides a circular self-locking optical fiber hybrid connector.

[0004] The solution adopted by the present invention to solve its technical problems is: a circular self-locking optical fiber hybrid connector, including a connector female end, a connector male end inserted into the connector female end, and a push-pull self-locking mechanism for locking the connector male end and the connector female end, the connector male end includes a male end shell and a male end connecting part provided in the male end shell, the male end connecting part includes a male end insulator accommodated in the male end shell, an optical fiber pin inserted into the male end insulator for connecting to an optical fiber to transmit an optical signal, and a signal terminal inserted into the peripheral side of the optical fiber pin for transmitting an electrical signal; the connector female end includes a female end shell for plugging and connecting with the male end shell, and a female end connecting part provided in the female end shell and matching the male end connecting part for electrically connecting with the male end connecting part.

[0005] By adopting this technical solution, the fiber optic pins and signal terminals can be integrated into the connector, allowing the same connector to handle the transmission needs of both optical and electrical signals. Furthermore, a push-pull self-locking mechanism is provided between the male and female connector ends to ensure a secure physical connection between the two, maintaining a tight fit even under vibration or other external forces, preventing accidental disconnection.

[0006] Furthermore, the push-pull self-locking mechanism includes a plurality of snap-fitting parts arranged on the outer wall of the plug-in end of the male end shell, a plurality of snap-fitting parts arranged at corresponding positions of the female end shell and adapted to the snap-fitting parts for cooperating with the snap-fitting parts to form a locking snap-fitting groove, and a push-pull shell movably covered on the male end shell. The push-pull shell is provided with a plurality of push-pull holes corresponding to the positions of the snap-fitting parts, and the snap-fitting parts pass through the push-pull holes. A deformation part connected to the snap-fitting part is also provided on the male end shell. The movement of the push-pull shell can cause the snap-fitting part to be subjected to force on the push-pull hole and drive the deformation part to deform, thereby causing the snap-fitting part to be pushed out of the snap-fitting groove.

[0007] By adopting the above technical solution, it is only necessary to apply force to push and pull the push-pull shell, and each push-pull hole can contact the edge step of the buckle part to drive the buckle part to deform downward along the deformation part, and then withdraw it from the buckle groove to complete the unlocking.

[0008] Furthermore, the optical fiber ferrule includes a ferrule for fixing the optical fiber and maintaining its alignment, a positioning sleeve wrapped around the ferrule, a spring body arranged between the ferrule and the positioning sleeve, a needle sleeve sleeved outside the positioning sleeve, and an optical fiber tail cap docked at the tail end of the positioning sleeve, and the optical fiber tail cap is provided with a first threaded portion for threaded connection with the tail end of the needle sleeve.

[0009] By adopting the above technical solution, the stability of the ferrule connection can be ensured and the optical fiber can be prevented from being disconnected.

[0010] Furthermore, the tail end of the male shell is docked with a wire clamp shell, and the tail end of the male shell is also provided with a second threaded portion, and the second threaded portion is threadedly connected to a tail shell for covering the wire clamp shell. The tail end of the wire clamp shell is provided with multiple clamping claws around the axis, and a pressure ring for sleeved on the outer periphery of each clamping claw portion is provided inside the tail shell. The movement of the tail shell along the second threaded portion can drive the pressure ring to progressively press each of the clamping claw portions, thereby clamping the cable.

[0011] By adopting the above technical solution, when the tail shell is rotated to advance along the axial direction, the pressure ring moves together and causes each clamping claw to contract and squeeze to clamp the cable passing through the wire clamp housing, preventing the cable from loosening due to external pulling during use, thereby ensuring the stability of the electrical connection.

[0012] Furthermore, a sealing groove is provided on the inner wall of the tail end of the tail shell, a sealing ring is provided in the sealing groove, and the aperture of the sealing ring is smaller than the diameter of the cable.

[0013] By adopting the above technical solution, the sealing ring is pushed forward as the tail cap is tightened, which can achieve the effect of squeezing waterproofing.

[0014] Furthermore, an offset step is provided on the outer wall of the male insulator for increasing the high voltage resistance capability.

[0015] By adopting the above technical solutions, the creepage distance and electrical clearance are increased, and the voltage resistance of the connector is increased.

[0016] Furthermore, an anti-mistake protrusion is provided on the outer wall of the plug-in end of the male end housing, and an anti-mistake groove is provided at a corresponding position on the inner wall of the female end housing.

[0017] By adopting the above technical solution, blind insertion operation is facilitated.

[0018] In summary, the beneficial effects of the present invention are as follows:

[0019] 1. This utility model integrates a fiber optic ferrule and a signal terminal into a connector, allowing the same connector to handle both optical and electrical signal transmission needs. Furthermore, a spring element is incorporated into the fiber ferrule, ensuring stable contact between the ferrule and the receptacle through its thrust, preventing fiber disconnection due to vibration or mechanical stress and improving connection stability.

[0020] 2. The present invention provides a push-pull self-locking mechanism composed of a buckle portion, a buckle groove, a deformation portion and a push-pull shell, which can ensure a stable physical connection between the male end of the connector and the female end of the connector, prevent loosening and disconnection due to external force, and release the lock by pushing and pulling the movable shell, which is convenient for quick plugging and unplugging.

[0021] 3. The utility model can effectively clamp the cables passing through it by providing the clamping claw part, the pressure change and the tail shell, and prevent the cables from loosening or falling off due to external pulling.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In addition, in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of this embodiment;

[0024] Figure 2 This is an exploded schematic diagram of the male end of the connector of this embodiment;

[0025] Figure 3 is a cross-sectional view of the male end of the connector of this embodiment;

[0026] Figure 4 Schematic diagram of the male end housing and the wire clamp housing of this embodiment;

[0027] Figure 5 2 is a cross-sectional view of the female end of the connector of this embodiment.

[0028] In the figure: 1. Connector female end; 11. Female end shell; 111. Anti-mistake groove; 12. Female end connection part; 2. Connector male end; 21. Male end shell; 211. Misalignment step; 212. Anti-mistake protrusion; 213. Second threaded part; 22. Male end connection part; 3. Push-pull self-locking mechanism; 31. Snap-fit ​​part; 32. Snap-fit ​​groove; 33. Push-pull shell; 34. Push-pull hole; 35. Deformation part; 4. Male end insulator; 41. Fiber optic pin; 411. Ferrule; 412. Positioning sleeve; 413. Spring body; 414. Pin sleeve; 415. Fiber optic tail cap; 416. First threaded part; 42. Signal terminal; 51. Clamp shell; 52. Tail shell; 521. Sealing groove; 53. Clamping claw part; 54. Pressing ring; 6. Sealing ring. DETAILED DESCRIPTION

[0029] In order to make the content of the present invention more clearly understood, the present invention will be further described below based on specific embodiments in conjunction with the accompanying drawings.

[0030] It should be noted that the terms "center," "upper," "lower," "front," "back," "left," "right," "inner," and "outer" used herein to indicate positions or locations are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Unless otherwise specified, "plurality" means two or more.

[0031] Unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0032] like Figures 1 to 5As shown, a circular self-locking fiber optic hybrid connector, wherein this embodiment includes a connector female end 1, a connector male end 2 inserted into the connector female end 1, and a push-pull self-locking mechanism 3 for locking the connector male end 2 and the connector female end 1, and the connector male end 2 includes a male end shell 21 and a male end connecting portion 22 provided in the male end shell 21, and the male end connecting portion 22 includes a male end insulator 4 accommodated in the male end shell 21, an optical fiber pin 41 inserted into the male end insulator 4 for connecting to an optical fiber to transmit an optical signal, and a signal terminal 42 inserted into the circumference of the optical fiber pin 41 for transmitting an electrical signal; and the connector female end 1 includes a female end shell 11 for plugging and connecting with the male end shell 21, and a female end connecting portion 12 provided in the female end shell 11 and matching the male end connecting portion 22 for electrically connecting with the male end connecting portion 22.

[0033] The connector of this embodiment is a circular connector. Its male end 2 consists of a cylindrical male housing 21 and a male connecting portion 22 therein. The male connecting portion 22 contains a cylindrical male insulator 4, with an optical fiber ferrule 41 inserted in the center. Six receptacles are evenly spaced around the area surrounding the optical fiber ferrule 41 for receiving signal terminals 42 for transmitting electrical signals. Similarly, the female end 1 consists of a female housing 11, which mates with the male housing 21, and a female connecting portion 12 therein. The female connecting portion 12 also includes a female insulator, as well as optical fiber receptacles and female signal terminals 42, located on the female insulator and corresponding to the male optical fiber ferrules 41 and male signal terminals 42, allowing the same connector to handle both optical and electrical signal transmission needs. A push-pull self-locking mechanism 3 is provided between the male end housing 21 and the female end housing 11, which can ensure that when the male end 2 of the connector is inserted into the female end 1 of the connector, the two can be firmly locked together to prevent accidental disconnection due to external factors, thereby ensuring the stability of communication transmission.

[0034] like Figure 2 、 Figure 4 as well as Figure 5As shown, the push-pull self-locking mechanism 3 of this embodiment includes a number of snap-fitting parts 31 arranged on the outer wall of the plug-in end of the male end shell 21, a number of snap-fitting grooves 32 arranged at corresponding positions of the female end shell 11 and adapted to the snap-fitting parts 31 for cooperating with the snap-fitting parts 31 to form a locking, and a push-pull shell 33 movably covered on the male end shell 21. The push-pull shell 33 is provided with a number of push-pull holes 34 corresponding to the positions of each snap-fitting part 31, and the snap-fitting part 31 passes through the push-pull holes 34. The male end shell 21 is also provided with a deformation part 35 connected to the snap-fitting part 31. The movement of the push-pull shell 33 can cause the snap-fitting part 31 to be subjected to force in the push-pull hole 34 and drive the deformation part 35 to deform, thereby pushing the snap-fitting part 31 out of the snap-fitting groove 32. Specifically, the snap-fitting parts 31 of this embodiment are provided in plurality and are evenly and symmetrically arranged on the outer wall of the male end shell 21, and corresponding snap-fitting grooves 32 matching the snap-fitting parts 31 are provided at corresponding positions on the inner wall of the female end shell 11. When the male end shell 21 of the connector male end 2 is aligned and plugged with the female end shell 11 of the connector female end 1, ensure that the snap-fitting parts 31 on the male end shell 21 are correctly aligned with the snap-fitting grooves 32 on the female end shell 11. When the connector male end 2 is plugged into the female end, each snap-fitting part 31 can also be snapped into the corresponding snap-fitting groove 32 to form a lock to prevent the connection from loosening due to external forces. A push-pull housing 33 is mounted on the male housing 21 and can be pushed and pulled along the axis of the male housing 21. Push-pull holes 34 are provided at the corresponding locations of the snap-fit ​​holes in the push-pull housing 33. Each snap-fit ​​portion 31 passes through the corresponding push-pull hole 34, exposing the snap-fit ​​portion 31. Furthermore, a deformable portion 35 made of elastic material is provided at the location of each snap-fit ​​portion 31 on the male housing 21. The deformable portion 35 is responsible for connecting the snap-fit ​​portion 31 to the housing base. When locking the male and female ends is required, force is simply applied to push and pull the push-pull housing 33. This allows the push-pull holes 34 to contact the edge steps of the snap-fit ​​portion 31, causing the snap-fit ​​portion 31 to deform downward along the deformable portion 35, thereby withdrawing it from the snap-fit ​​groove 32 and completing the unlocking process.

[0035] like Figure 2 as well as Figure 3As shown, the fiber optic ferrule 41 of this embodiment includes a ferrule 411 for securing the optical fiber and maintaining its alignment, a positioning sleeve 412 wrapped around the ferrule 411, a spring body 413 disposed between the ferrule 411 and the positioning sleeve 412, a needle sleeve 414 sleeved outside the positioning sleeve 412, and a fiber tail cap 415 docked at the rear end of the positioning sleeve 412. The fiber tail cap 415 is provided with a first threaded portion 416 for threaded connection with the rear end of the needle sleeve 414. The ferrule 411 of this embodiment is a ceramic ferrule 411, with an axial core hole provided at its central axis to secure the optical fiber and maintain its precise alignment. The positioning sleeve 412, wrapped around the outside of the ferrule 411, can help reduce the impact of the external environment on the optical fiber, such as dust and vibration. The positioning sleeve 412 is generally made of metal or high-strength plastic material to provide sufficient rigidity and durability. A spring body 413 is positioned between the positioning sleeve 412 and the shaft core, fitting over the shaft core. The spring's thrust prevents the fiber from disconnecting, further stabilizing the connection of the ceramic ferrule 411. A fiber tail cap 415 is attached to the tail of the positioning sleeve 412 to protect the fiber tail. A first threaded portion 416 is positioned at the head of the cap. A needle sleeve 414 is positioned to fit over the aforementioned components and threadedly engage the first threaded portion 416, ensuring a stable connection.

[0036] like Figure 2 as well as Figure 3 As shown, the tail end of the male housing 21 of this embodiment is docked with the wire clamp housing 51, and a second threaded portion 213 is further provided at the tail end of the male housing 21. The second threaded portion 213 is threadedly connected to the tail housing 52 for covering the wire clamp housing 51, and the tail end of the wire clamp housing 51 is provided with multiple clamping claws 53 around the axis. A pressure ring 54 is provided inside the tail housing 52 for sleeved on the outer periphery of each clamping claw 53. The tail housing 52 moves along the second threaded portion 213 to drive the pressure ring 54 to progressively press each clamping claw 53, thereby clamping the cable. Specifically, the head end of the wire clamp housing 51 is plugged and docked with the tail part of the male housing 21, and a cavity is built in for the cable to pass through. A plurality of clamping claws 53 are provided at its tail end. These clamping claws 53 are elastic and evenly distributed around their axis, and the inner wall of the clamping claw 53 is provided with a claw groove, which can be used to clamp the cable. A second threaded portion 213 is provided on the outer wall of the tail end of the male end housing 21, and is threadedly connected to a tail housing 52. The tail housing 52 covers the outside of the above-mentioned wire clamp housing 51 and has a built-in pressure ring 54 that is sleeved on the outside of the tail of each clamping claw portion 53. When the tail housing 52 is rotated to make it progress along the axial direction, the pressure ring 54 moves together and causes each clamping claw portion 53 to contract and squeeze, so as to clamp the cable passing through the wire clamp housing 51, to prevent the cable from loosening due to external pulling during use, and to ensure the stability of the electrical connection.

[0037] like Figure 2 as well as Figure 3As shown, the inner wall of the tail housing 52 of this embodiment is provided with a sealing groove 521. A sealing ring 6 is located within this groove, and its aperture is smaller than the cable diameter. Made of rubber, silicone, or other materials, the sealing ring 6 effectively blocks moisture, dust, and other contaminants from entering the connector. Its aperture is smaller than the cable diameter, providing a water-resistant seal as the tail cap is tightened.

[0038] like Figure 2 as well as Figure 3 As shown, the outer wall of the male insulator 4 of this embodiment is provided with offset steps 211 to increase the high-voltage resistance. The circumferential offset steps 211 are provided on the outer walls of both the male and female insulators, forming a discontinuous path along the outer walls of each insulator, thereby increasing creepage distance and electrical clearance, and enhancing the connector's voltage resistance.

[0039] like Figure 1 As shown, the outer wall of the plug-in end of the male end shell 21 of this embodiment is provided with an anti-fool protrusion 212, and an anti-fool groove 111 is provided at a corresponding position on the inner wall of the female end shell 11. The anti-fool protrusion 212 is provided on the outer wall of the plug-in end of the male end shell 21, and is a protrusion structure of a specific shape, and a matching groove structure is provided on the inner wall of the female end at a position corresponding to the anti-fool protrusion 212. When the user tries to plug the male end 2 of the connector into the female end 1 of the connector, the male end can only be successfully inserted and the electrical connection completed when the anti-fool protrusion 212 and the anti-fool groove 111 are aligned. If the direction is incorrect, the anti-fool protrusion 212 will prevent the male end 2 of the connector from being plugged into the female end 1 of the connector, thereby avoiding incorrect installation and facilitating blind plugging operations.

[0040] In summary, the beneficial effects of this embodiment are as follows: this embodiment can integrate the optical fiber pin 41 and the signal terminal 42 into the connector, allowing the transmission requirements of optical signals and electrical signals to be processed simultaneously in the same connector. A spring body 413 is provided in the optical fiber pin 41, and the thrust of the spring ensures stable contact between the optical fiber pin 41 and the socket, preventing the optical fiber from being disconnected due to vibration or mechanical stress, thereby improving the stability of the connection. By providing a push-pull self-locking mechanism 3 composed of a buckle portion 31, a buckle groove 32, a deformation portion 35 and a push-pull shell 33, a stable physical connection can be formed between the male end 2 of the connector and the female end 1 of the connector, preventing loosening and disconnection due to external force, and the unlocking can be achieved by pushing and pulling the movable shell, which is convenient for quick plugging and unplugging. By providing a clamping claw portion 53, a pressure change and a tail shell 52, the cable passing therethrough can be effectively clamped to prevent loosening or falling off due to external pulling. The presence of a foolproof protrusion 212 on the outer wall of the male housing 21 at the plug-in end, and a corresponding foolproof groove 111 on the inner wall of the female housing 11, ensures precise alignment of the connector during insertion, preventing damage or signal transmission problems caused by incorrect insertion. A sealing groove 521 is provided on the inner wall of the rear end of the tail housing 52, and a sealing ring 6 is installed within the sealing groove 521. The aperture of the sealing ring 6 is smaller than the diameter of the cable, ensuring the connector's waterproof and dustproof properties.

[0041] The embodiments described above are only preferred implementation methods of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and modifications made by technicians in this field on the basis of the utility model shall fall within the scope of protection of the present invention.

Claims

1. A circular self-locking optical fiber hybrid connector, characterized in that: The invention comprises a female connector, a male connector inserted into the female connector, and a push-pull self-locking mechanism for locking the male connector and the female connector. The male connector comprises a male housing and a male connecting portion provided in the male housing. The male connecting portion comprises a male insulator accommodated in the male housing, an optical fiber ferrule inserted into the male insulator for connecting to an optical fiber to transmit an optical signal, and a signal terminal inserted into the peripheral side of the optical fiber ferrule for transmitting an electrical signal. The female end of the connector includes a female end housing for plugging and connecting with the male end housing, and a female end connecting portion arranged in the female end housing and matching the male end connecting portion for electrically connecting with the male end connecting portion.

2. The circular self-locking optical fiber hybrid connector according to claim 1, characterized in that: The push-pull self-locking mechanism includes several buckling parts arranged on the outer wall of the plug-in end of the male end shell, several buckling grooves arranged at corresponding positions of the female end shell and adapted to the buckling parts for cooperating with the buckling parts to form a locking, and a push-pull shell movably covered on the male end shell. The push-pull shell is provided with several push-pull holes corresponding to the positions of the buckling parts, and the buckling parts pass through the push-pull holes. A deformation part connected to the buckling part is also provided on the male end shell. The movement of the push-pull shell can cause the buckling part to be subjected to force on the push-pull hole and drive the deformation part to deform, thereby causing the buckling part to be pushed out of the buckling groove.

3. The circular self-locking optical fiber hybrid connector according to claim 1, characterized in that: The optical fiber ferrule includes a ferrule for fixing the optical fiber and maintaining its alignment, a positioning sleeve wrapped around the ferrule, a spring body arranged between the ferrule and the positioning sleeve, a needle sleeve sleeved outside the positioning sleeve, and an optical fiber tail cap docked at the tail end of the positioning sleeve, and the optical fiber tail cap is provided with a first threaded portion for threaded connection with the tail end of the needle sleeve.

4. The circular self-locking optical fiber hybrid connector according to claim 1, characterized in that: The tail end of the male shell is connected to the wire clamp shell, and the tail end of the male shell is also provided with a second threaded portion, and the second threaded portion is threadedly connected to a tail shell for covering the wire clamp shell. The tail end of the wire clamp shell is provided with a plurality of clamping claws around the axis, and a pressure ring for sleeved on the outer periphery of each clamping claw is provided inside the tail shell. The movement of the tail shell along the second threaded portion can drive the pressure ring to progressively press each clamping claw, thereby clamping the cable.

5. The circular self-locking optical fiber hybrid connector according to claim 4, characterized in that: A sealing groove is provided on the inner wall of the tail end of the tail shell, a sealing ring is provided in the sealing groove, and the aperture of the sealing ring is smaller than the diameter of the cable.

6. The circular self-locking optical fiber hybrid connector according to claim 1, characterized in that: The outer wall of the male end insulator is provided with a staggered step for increasing the high voltage resistance capability.

7. The circular self-locking optical fiber hybrid connector according to claim 1, characterized in that: The outer wall of the male end housing plug-in end is provided with an anti-mistake protrusion, and the inner wall of the female end housing is provided with an anti-mistake groove at a corresponding position.

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