Optical fiber connector and cable assembly

Abstract

The present application relates to the technical field of communications, and provides an optical fiber connector and a cable assembly, for use in solving the technical problem of a poor use effect of optical fiber connectors. The optical fiber connector provided by the present application comprises a ferrule base and a sleeve; the ferrule base has a through hole allowing for passing of an optical fiber, the outer circumferential surface of the ferrule base has a first abutting surface, the first abutting surface is arranged at an included angle with the axis, the inner wall of the sleeve has a first limiting surface, and both the first limiting surface and the first abutting surface are arranged at an included angle with the axis; and the first abutting surface abuts against the first limiting surface for preventing the ferrule base from moving relative to the sleeve along a first direction and for allowing the sleeve and the ferrule base to rotate relative to each other around the axis. In the optical fiber connector provided by the present application, positional limitation between the ferrule base and the sleeve is achieved by means of mutual abutment between the first abutting surface and the first limiting surface, and the sleeve and the ferrule base are allowed to rotate relative to each other at any angle around the axis. The optical fiber connector is convenient to use.

Description

A fiber optic connector and cable assembly

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202323172579.3, filed on November 22, 2023, entitled "An Optical Fiber Connector and Cable Assembly", the entire contents of which are incorporated herein by reference. Technical Field

[0003] [Revised according to Rule 91, 30.08.2024] This application relates to the field of communication technology, and more particularly to an optical fiber connector and cable assembly. Background Technology

[0004] In the current global construction of fiber-to-the-home (FTTH) networks, it is necessary to connect optical fibers to communication equipment, enabling efficient signal transmission between different communication devices. Current connection methods typically involve pre-installing connectors at the ends of the optical fibers, and then connecting these connectors to interfaces in converters or communication equipment. This approach offers advantages such as ease of connection and flexible deployment.

[0005] However, the current connectors still have many unreasonable structural features, which hinders their convenient use and widespread application.

[0006] [Revised according to Article 91, August 30, 2024] Summary of the Invention

[0007] [Revised according to Rule 91, 30.08.2024] This application provides an optical fiber connector and cable assembly that is easy to use and widely applicable.

[0008] [Revised according to Article 91, August 2024] In a first aspect, this application provides an optical fiber connector, including a ferrule base and a sleeve. The ferrule base has a through hole for an optical fiber to pass through. The sleeve is fitted around the periphery of the ferrule base. The outer peripheral surface of the ferrule base has a first abutment surface, which is angled to an axis. The inner wall of the sleeve has a first limiting surface, which is angled to an axis. The first abutment surface is arranged around the axis of the through hole, or the first limiting surface is arranged around the axis of the through hole. Alternatively, the first abutment surface is arranged around the axis of the through hole, and the first limiting surface is also arranged around the axis of the through hole. The first abutment surface abuts against the first limiting surface to prevent the ferrule base from moving relative to the sleeve in a first direction, and to allow the sleeve and the ferrule base to rotate relative to each other about an axis. The first direction is parallel to the axis. In the fiber optic connector provided in this application, the ferrule base and the sleeve are positioned by mutual abutment between a first abutment surface and a first limiting surface, preventing the ferrule base from moving relative to the sleeve in a first direction. Furthermore, after the first abutment surface and the first limiting surface abut against each other, the sleeve and the ferrule base can rotate relative to each other at any angle around their axis, effectively improving the convenience of assembly and use of the fiber optic connector.

[0009] In its specific configuration, the fiber optic connector also includes a fastener, which is threadedly connected to the sleeve. The rotation centers of the fastener and the sleeve coincide with the axis. Locking and unlocking between the fastener and the sleeve can be achieved by rotating the sleeve. Furthermore, since the sleeve and the ferrule base can rotate relative to each other at any angle, the sleeve has a wide range of rotation angles when locking or unlocking the sleeve and fastener, and the fiber optic base does not obstruct the sleeve, facilitating effective assembly and disassembly between the sleeve and the fastener.

[0010] In one example, the ferrule base further includes a second abutment surface, which is angled to the axis. The inner wall of the sleeve has a second limiting surface, which is also angled to the axis. The second abutment surface is positioned around the axis of the through hole, or the second limiting surface is positioned around the axis of the through hole. Alternatively, the second abutment surface is positioned around the axis of the through hole, and the second limiting surface is also positioned around the axis of the through hole. The second abutment surface abuts against the second limiting surface to prevent the ferrule base from moving relative to the sleeve in a second direction, and to allow the sleeve and ferrule base to rotate relative to each other around the axis. The second direction is opposite to the first direction. The ferrule base and the sleeve are positioned by the mutual abutment between the second abutment surface and the second limiting surface, preventing the ferrule base from moving relative to the sleeve in the second direction. In addition, after the second abutment surface abuts against the second limiting surface, the sleeve and ferrule base can rotate relative to each other around the axis at any angle, which can effectively improve the convenience of assembling and using the fiber optic connector.

[0011] In one example, the inner wall of the sleeve has at least one protrusion, and a first locating surface is located on the side of the protrusion. The outer peripheral surface of the ferrule base has an annular groove, and a first abutting surface is located on the sidewall of the annular groove. The annular groove provides an annular sidewall that can form the first abutting surface. The side of the protrusion can form the first locating surface.

[0012] In one example, the outer peripheral surface of the ferrule base includes an elastic element, the end of which extends in a second direction. A second abutment surface is located at the end of the elastic element. By incorporating the elastic element, efficient assembly and positional limiting between the ferrule base and the sleeve can be achieved.

[0013] In one example, the inner wall of the sleeve includes an annular flange, and a first locating surface is located on the surface of the annular flange facing a second direction. The annular flange provides an annular surface that can form the first locating surface, thus enabling the sleeve to rotate relative to the ferrule base at any angle.

[0014] In one example, the ferrule base further includes a second abutment surface, which is disposed around the axis of the through hole and at an angle to the axis. The fastener has a second limiting surface, which is disposed around the axis of the through hole and at an angle to the axis. The second abutment surface abuts against the second limiting surface to prevent the ferrule base from moving relative to the sleeve in a second direction, while allowing the sleeve and ferrule base to rotate relative to each other around the axis. In summary, by incorporating the second limiting surface in the fastener, the fastener can position the ferrule base, preventing movement of the ferrule base relative to the sleeve in a second direction.

[0015] In a specific configuration, one end of the fastener has an annular end face, and the second limiting surface is located on the end face.

[0016] When setting the first abutting surface and the first limiting surface, the angle between the first abutting surface and the axis is 90°, and the angle between the first limiting surface and the axis is approximately 90°.

[0017] When setting the second abutment surface and the second limiting surface, the angle between the second abutment surface and the axis is 90°, and the angle between the second limiting surface and the axis is approximately 90°.

[0018] In summary, the angle between the first abutment surface, the first limiting surface, the second abutment surface, or the second limiting surface and the axis can be any value between 0° and 90°, providing good flexibility in setting.

[0019] In one example, the fiber optic connector also includes a locking element. The locking element securely connects to the ferrule base and the optical fiber. The locking element effectively secures the ferrule base and the optical fiber, preventing loosening or other problems between them.

[0020] In one example, the fiber optic connector also includes a protective layer that covers part of the outer periphery of the locking element and the optical fiber. By providing the protective layer, the junction between the locking element and the optical fiber can be effectively sealed, thus significantly improving the airtightness of the fiber optic connector.

[0021] [Revised according to Article 91, August 2024] In a second aspect, this application also provides a cable assembly, including an optical fiber and the aforementioned optical fiber connector. The fiber core of the optical fiber passes through a through-hole. By applying the aforementioned optical fiber connector to the cable assembly, the assembly and use of the cable assembly are made more flexible and convenient, effectively improving the applicability of the cable assembly. In practical applications, the optical fiber connector can be located at one end of the optical fiber, or it can be located at both ends of the optical fiber. Attached Figure Description

[0022] [Corrected according to Rule 91, 30.08.2024] Figure 1 is an application scenario architecture diagram of an optical fiber connector provided in an embodiment of this application;

[0023] [Correction 30.08.2024 based on Rule 91] Figure 2 is a structural schematic diagram of a cable assembly provided in an embodiment of this application;

[0024] Figure 3 is a schematic diagram of the cross-sectional structure along direction AA in Figure 2;

[0025] [Correction 30.08.2024 based on Rule 91] Figure 4 is an exploded view of a partial structure of an optical fiber connector provided in an embodiment of this application;

[0026] Figure 5 is a schematic diagram of the cross-sectional structure along the BB direction in Figure 2;

[0027] [Correction 30.08.2024 based on Rule 91] Figure 6 is a schematic diagram of another cable assembly provided in an embodiment of this application;

[0028] Figure 7 is a schematic diagram of the cross-sectional structure along the DD direction in Figure 6;

[0029] [Correction 30.08.2024 based on Rule 91] Figure 8 is an exploded view of a partial structure of another optical fiber connector provided in an embodiment of this application;

[0030] Figure 9 is a magnified view of part E in Figure 7. Detailed Implementation

[0031] [Revised according to Article 91, 30.08.2024] In order to make the purpose, technical solution and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings.

[0032] [Revised according to Rule 91, 30.08.2024] To facilitate understanding of the fiber optic connector provided in the embodiments of this application, its application scenarios will be introduced first below.

[0033] As shown in Figure 1, in a fiber-to-the-home (FTTH) scenario, optical fibers are typically laid to a central equipment room or an entrance to the home according to the route design. In practical applications, fiber optic connectors are usually installed at both ends of the optical fiber to facilitate the connection between the fiber optic cable and communication equipment.

[0034] For example, in the scenario shown in Figure 1, there is a central equipment room 01, a fiber optic distribution box 02, and a user terminal box 03. A main fiber optic cable 04 connects the central equipment room 01 and the fiber optic distribution box 02, enabling communication between them. A drop fiber optic cable 05 connects the fiber optic distribution box 02 and the user terminal box 03, enabling communication between them. Both ends of the main fiber optic cable 04 and the drop fiber optic cable 05 are equipped with fiber optic connectors. During deployment, the connector at one end of the main fiber optic cable 04 can be connected to the interface in the central equipment room 01, and the connector at the other end of the main fiber optic cable 04 can be connected to the interface in the fiber optic distribution box 02. Similarly, the connector at one end of the drop fiber optic cable 05 can be connected to the interface in the fiber optic distribution box 02, and the connector at the other end of the drop fiber optic cable 05 can be connected to the interface in the user terminal box 03. Signals from the central equipment room 01 can be transmitted to the fiber optic distribution box 02 via the main fiber optic cable 04. In the fiber distribution box 02, the signal can be split into multiple paths and transmitted to the corresponding user terminal box 03 via different drop fibers 05. It is understood that only one fiber distribution box 02 is shown in the example above; however, in actual applications, this scenario may include two or more fiber distribution boxes 02. In summary, a single central equipment room 01 can be connected to the corresponding fiber distribution box 02 via multiple different main fibers 04. Furthermore, only four user terminal boxes 03 are shown in the example above. However, in actual applications, this scenario may include two, three, or more user terminal boxes 03. In summary, a single fiber distribution box 02 can be connected to the corresponding user terminal box 03 via multiple different drop fibers 05.

[0035] In practical applications, fiber optic connectors are usually assembled from multiple components. However, the structure of the components in the connector still has many unreasonable factors. Therefore, there are significant limitations in assembling the components, which is not conducive to the convenient use and widespread application of the connector.

[0036] [Correction 30.08.2024 according to Rule 91] Based on this, the embodiments of this application provide an optical fiber connector with good assembly convenience and ease of use.

[0037] [Revised according to Article 91, 30.08.2024] In order to make the purpose, technical solution and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] [Correction 30.08.2024 based on Rule 91] As shown in Figure 2, in one example provided in this application, the cable assembly includes an optical fiber connector 10 and an optical fiber 100. The optical fiber connector 10 is disposed at one end of the optical fiber 100, and the optical fiber 100 can be connected to other optical fiber connectors, interfaces, or converters through the optical fiber connector 10 to facilitate signal connection between the optical fiber 100 and other optical fibers, or to facilitate signal connection between the optical fiber 100 and communication equipment.

[0039] As shown in Figures 2, 3, and 4, the fiber optic connector 10 includes a ferrule base 11, a sleeve 12, and a fiber optic ferrule 14. The fiber optic ferrule 14 has a through-hole (not shown in the figures), through which the fiber core of the fiber optic cable 100 can be inserted and fixed, facilitating signal connection between the fiber optic cable 100 and other fibers 100 or communication devices. The ferrule base 11 connects the fiber optic ferrule 14 and the sleeve 12, effectively positioning the fiber optic ferrule 14 and the sleeve 12, preventing significant relative movement between them, thus improving the overall integrity and reliability of the fiber optic connector 10 during application.

[0040] [Correction based on Rule 91, 30.08.2024] In specific applications, the fiber optic ferrule 14 can be selected from commonly used types. This application does not limit the specific structure and type of the fiber optic ferrule 14. In addition, the connection structure between the fiber optic ferrule 14 and the ferrule base 11 can also be reasonably set according to commonly used structures, which will not be elaborated here.

[0041] As shown in Figures 3 and 4, the ferrule base 11 has a through hole 111 for the optical fiber 100 to pass through, and the sleeve 12 is fitted around the periphery of the ferrule base 11. The outer peripheral surface of the ferrule base 11 has a first abutment surface 112, which is arranged around the axis C of the through hole and is substantially perpendicular to the axis C. The inner wall of the sleeve 12 has a first limiting surface 121, which is substantially perpendicular to the axis C. The first abutment surface 112 abuts against the first limiting surface 121 to prevent the ferrule base 11 from moving relative to the sleeve 12 in a first direction, and to allow the sleeve 12 and the ferrule base 11 to rotate relative to each other around the axis C. The first direction is parallel to the axis C.

[0042] [Corrected according to Rule 91, 30.08.2024] In the example provided in this application, the sleeve 12 and the ferrule base 11 are positioned by a first limiting surface 121 and a first abutting surface 112. When assembling the sleeve 12 and the ferrule base 11, the ferrule base 11 can be inserted into the sleeve 12 from the end of the sleeve 12 away from the first direction (the right end in Figure 3). When the first limiting surface 121 abuts against the first abutting surface 112, it prevents the ferrule base 11 from continuing to move relative to the sleeve 12 along the first direction, thereby achieving positional positioning between the sleeve 12 and the ferrule base 11. Furthermore, the first abutting surface 112 is arranged around the axis C of the through hole; therefore, relative rotation around the axis C can occur between the sleeve 12 and the ferrule base 11, and the rotation angle between the sleeve 12 and the ferrule base 11 can be greater than 360°. That is, relative rotation at any angle can occur between the sleeve 12 and the ferrule base 11. It offers good ease of installation when installing other components of the fiber optic connector 10.

[0043] [Corrected according to Rule 91, 30.08.2024] For example, as shown in Figures 3 and 4, in one example provided in this application, the fiber optic connector 10 also includes a fastener 13, which is threadedly connected to the sleeve 12. The rotation centers of the fastener 13 and the sleeve 12 coincide with the axis C. Locking and unlocking between the fastener 13 and the sleeve 12 can be achieved by rotating the sleeve 12. Furthermore, since the sleeve 12 and the ferrule base 11 can rotate relative to each other by 360°, the sleeve 12 has a large range of rotation angles when locking or unlocking the sleeve 12 and the fastener 13, and the ferrule base 11 does not obstruct the sleeve 12, which facilitates effective assembly and disassembly between the sleeve 12 and the fastener 13.

[0044] In specific configurations, the structural types of the first limiting surface 121 and the first abutting surface 112 can be varied.

[0045] [Correction 30.08.2024 according to Rule 91] For example, as shown in FIG4, in one example provided in this application, the outer peripheral surface of the ferrule base 11 has an annular groove 113 disposed around the axis C, and the sidewall of the annular groove 113 facing the first direction constitutes a first abutment surface 112.

[0046] The inner wall of the sleeve 12 has a protrusion 122 extending in the direction of the axis C, and the side of the protrusion 122 facing away from the first direction forms a first limiting surface 121. When the first abutting surface 112 abuts against the first limiting surface 121, the position between the ferrule base 11 and the sleeve 12 can be positioned, preventing the ferrule base 11 from moving relative to the sleeve 12 in the first direction.

[0047] It should be noted that the first abutting surface 112 is an annular surface and is arranged around the axis C of the through hole, and the first limiting surface 121 is one side of the protrusion 122. Therefore, when the first abutting surface 112 abuts against the first limiting surface 121, rotation around the axis C is allowed between the ferrule base 11 and the sleeve 12.

[0048] When setting the protrusion 122, one or more protrusions 122 can be set. When multiple protrusions 122 are set on the inner wall of the sleeve 12, the multiple protrusions 122 can be evenly distributed around the axis C. The side of each protrusion 122 facing away from the first direction can form the first abutment surface 112. Alternatively, it can be understood that the first abutment surface 112 is a discontinuous surface set around the axis C.

[0049] In other examples, the structures of the first limiting surface 121 and the first abutting surface 112 can also be interchanged. For example, the first limiting surface 121 can be a surface arranged about the axis C.

[0050] In simple terms, a protrusion structure similar to the protrusion 122 can be provided on the outer peripheral surface of the ferrule base 11, and a groove structure similar to the annular groove 113 can be provided on the inner wall of the sleeve 12.

[0051] Alternatively, the first limiting surface 121 and the first abutting surface 112 can both be surfaces arranged around the axis C.

[0052] [Corrected according to Rule 91, 30.08.2024] For example, as shown in Figures 6, 7, and 8, in another example provided in this application, the inner wall of the sleeve 12 is provided with an annular flange 123 extending toward the axis C, and the outer peripheral surface of the ferrule base 11 has an annular flange 114 extending away from the axis C. The side of the annular flange 123 facing the second direction constitutes a first limiting surface 121. The side of the annular flange 114 facing the first direction constitutes a first abutment surface 112.

[0053] When the first abutting surface 112 abuts against the first limiting surface 121, the position between the ferrule base 11 and the sleeve 12 can be positioned, preventing the ferrule base 11 from moving relative to the sleeve 12 in the first direction.

[0054] When configuring the first abutment surface 112 and the first limiting surface 121, the specific structure constituting the first limiting surface 121 can be reasonably configured according to actual needs. Correspondingly, the specific structure constituting the first abutment surface 112 can be reasonably configured according to actual needs. In summary, the first abutment surface 112 and the first limiting surface 121 abut against each other to prevent the ferrule base 11 from moving in the first direction, while allowing the ferrule base 11 and the sleeve 12 to rotate relative to each other at any angle around the axis C.

[0055] In addition, in the above example, both the first limiting surface 121 and the first abutting surface 112 are planes. In other examples, the first limiting surface 121 and the first abutting surface 112 may also be stepped surfaces or curved surfaces, etc.

[0056] In addition, in the above example, both the first limiting surface 121 and the first abutting surface 112 are perpendicular to the axis C, so that after the first limiting surface 121 and the first abutting surface 112 abut against each other, the ferrule base 11 can be effectively prevented from moving relative to the sleeve 12 in the first direction.

[0057] In other examples, the angle between the first limiting surface 121 and the axis C can be any value between 0° and 90° or less, and the angle between the first abutting surface 112 and the axis C can also be any value between 0° and 90° or less. In summary, the first limiting surface 121 and the axis C can be set at an angle, and the first abutting surface 112 and the axis C can be set at an angle.

[0058] When setting the first limiting surface 121 and the first abutting surface 112, reasonable adjustments can be made according to actual needs, which will not be elaborated here.

[0059] In the above example, the ferrule base 11 and the sleeve 12 are positioned relative to each other by the first limiting surface 121 and the first abutting surface 112 to prevent the ferrule base 11 from moving relative to the sleeve 12 in the first direction. In practical applications, to prevent the ferrule base 11 from becoming loose or other defects from the sleeve 12, a corresponding limiting structure can also be set to prevent the ferrule base 11 from moving relative to the sleeve 12 in the second direction. The second direction is the opposite of the first direction.

[0060] [Corrected according to Rule 91, 30.08.2024] For example, as shown in Figures 4 and 5, in one example provided in this application, the ferrule base 11 further includes a second abutment surface 115. The inner wall of the sleeve 12 has a second limiting surface 124, which is disposed around the axis C of the through hole, and the second limiting surface 124 is disposed at an angle to the axis C. The second abutment surface 115 abuts against the second limiting surface 124 to prevent the ferrule base 11 from moving relative to the sleeve 12 in a second direction, and to allow the sleeve 12 and the ferrule base 11 to rotate relative to each other around the axis C.

[0061] When setting the second limiting surface 124 and the second abutting surface 115, the structural types of the second limiting surface 124 and the second abutting surface 115 can be varied.

[0062] [Correction 30.08.2024 according to Rule 91] For example, as shown in Figures 4 and 5, in one example provided in this application, the inner wall of the sleeve 12 has an annular flange 125 extending toward the axis C, and the side of the annular flange 125 facing the first direction forms a second limiting surface 124.

[0063] The outer peripheral surface of the ferrule base 11 includes an outwardly extending elastic member 116. One end of the elastic member 116 is fixedly connected to the outer peripheral surface of the ferrule base 11, and the other end extends in a second direction. The second abutment surface 115 is located at the end of the other end. After the second limiting surface 124 abuts against the second abutment surface 115, it can prevent the ferrule base 11 from moving relative to the sleeve 12 in the second direction.

[0064] Specifically, when assembling the sleeve 12 and the ferrule base 11, the ferrule base 11 can be inserted into the sleeve 12 from the end facing the second direction (the right end in Figure 5). During insertion, the elastic element 116 is subjected to the compressive force of the annular flange 125, causing the elastic element 116 to undergo elastic deformation by bending towards the axis C. When the end of the elastic element 116 passes the annular flange 125, the elastic element 116 undergoes elastic deformation away from the axis C under its own elastic force, causing the second abutment surface 115 at the end of the elastic element 116 to abut against the second limiting surface 124. At the same time, the first abutment surface 112 abuts against the first limiting surface 121, thereby achieving the positional positioning between the ferrule base 11 and the sleeve 12.

[0065] Specifically, when the first limiting surface 121 abuts against the first abutting surface 112, it prevents the ferrule base 11 from moving relative to the sleeve 12 in the first direction. When the second limiting surface 124 abuts against the second abutting surface 115, it prevents the ferrule base 11 from moving relative to the sleeve 12 in the second direction. This prevents relative axial movement between the ferrule base 11 and the sleeve 12, thus achieving positional limiting between them.

[0066] When setting the elastic element 116, one or more elastic elements 116 can be set. When multiple elastic elements 116 are set on the outer peripheral surface of the insert base 11, the multiple elastic elements 116 can be evenly distributed around the axis C. The end of each elastic element 116 facing away from the second direction can form a second abutment surface 115. Alternatively, it can be understood that the second abutment surface 115 is a discontinuous surface set around the axis C.

[0067] In other examples, the structures of the second limiting surface 124 and the second abutment surface 115 can also be interchanged. For example, the second limiting surface 124 can be a surface arranged about the axis C.

[0068] In simple terms, a flange structure similar to the annular flange 125 can be provided on the outer peripheral surface of the insert base 11, and an elastic structure similar to the elastic element 116 can be provided on the inner wall of the sleeve 12.

[0069] Alternatively, the second limiting surface 124 and the second abutting surface 115 can both be surfaces set around the shaft C.

[0070] In the example above, the second limiting surface 124 is a plane. In other examples, the second limiting surface 124 may also be a stepped surface, etc.

[0071] In addition, in the example above, the second limiting surface 124 is perpendicular to the axis C, so that after the second limiting surface 124 abuts against the second abutting surface 115, it can effectively prevent the ferrule base 11 from moving relative to the sleeve 12 in the second direction.

[0072] In other examples, the angle between the second limiting surface 124 and the axis C can be any value between 0° and 90°, and the angle between the second abutting surface 115 and the axis C can also be any value between 0° and 90°. In summary, the second limiting surface 124 and the axis C can be set at an angle, and the second abutting surface 115 and the axis C can be set at an angle.

[0073] [Correction 30.08.2024 according to Rule 91] In addition, in the example provided in this application, the surface 1251 of the annular flange 125 facing the second direction can also effectively limit the position of the fastener 13 to ensure the connection effect between the fastener 13 and the sleeve 12.

[0074] Specifically, when locking the fastener 13 and the sleeve 12, the sleeve 12 can be rotated. The inner wall of the sleeve 12 has an internal thread, and the outer circumferential surface of the fastener 13 has an external thread, with the internal and external threads engaging. When the sleeve 12 is rotated, the fastener 13 moves in the first direction due to the engagement of the internal and external threads. When the end face of the fastener 13 abuts against the surface 1251 of the annular flange 125, it prevents the fastener 13 from continuing to move in the first direction, thereby achieving effective locking between the fastener 13 and the sleeve 12.

[0075] Additionally, in the example described above, the sleeve 12 and the ferrule base 11 are prevented from moving relative to the sleeve 12 in the second direction by means of the limiting relationship between the second abutment surface 115 and the second limiting surface 124. In other examples, the ferrule base 11 can also be prevented from moving relative to the sleeve 12 in the second direction by means of a fastener 13.

[0076] [Correction 30.08.2024 based on Rule 91] Specifically, as shown in Figures 7 and 8, in another example provided in this application, the side of the annular flange 114 facing the second direction can constitute the second abutment surface 115. The annular end face of the fastener 13 facing the first direction can constitute the second limiting surface 124.

[0077] When assembling the fiber optic connector 10, the ferrule base 11 can be inserted into the sleeve 12 from the end facing the second direction (the right end in Figure 7), so that the first abutment surface 112 abuts against the first limiting surface 121, thereby preventing the ferrule base 11 from continuing to move in the first direction relative to the sleeve 12. Then, the fastener 13 is screwed into the sleeve 12 from the end facing the second direction (the right end in Figure 7). During the tightening of the sleeve 12 and the fastener 13, the fastener 13 moves in the first direction relative to the sleeve 12. When the second limiting surface 124 abuts against the second abutment surface 115, the fastener 13 and the sleeve 12 can be locked. At the same time, the ferrule base 11 can also be limited between the sleeve 12 and the fastener 13 to prevent the ferrule base 11 from moving in the direction of axis C relative to the sleeve 12 and the fastener 13.

[0078] [Corrected according to Rule 91, 30.08.2024] Additionally, as shown in Figure 7, in the example provided in this application, the fiber optic connector 10 also includes a sealing ring 15. The sealing ring 15 is sleeved on the outer peripheral surface of the fastener 13, and the inner wall of the sealing ring 15 is tightly fitted with the outer peripheral surface of the fastener 13. The outer peripheral surface of the sealing ring 15 is also tightly fitted with the inner wall of the sleeve 12, thereby achieving a sealed connection between the fastener 13 and the sleeve 12. By setting the sealing ring 15, the airtightness of the fiber optic connector 10 can be effectively improved, preventing moisture, dust, and other impurities from the external environment from entering the sleeve 12, thus ensuring the reliability of the fiber optic connector 10.

[0079] [Corrected according to Rule 91, 30.08.2024] Additionally, as shown in FIG9, in one example provided in this application, the fiber optic connector 10 further includes a locking member 16. The locking member 16 is fixedly connected to the ferrule base 11 and the optical fiber 100 to prevent loosening or other defects between the ferrule base 11 and the optical fiber 100.

[0080] [Corrected according to Rule 91, 30.08.2024] Specifically, in the example provided in this application, the locking element 16 is a crimping ring. In a specific configuration, one end of the crimping ring can be fitted onto a portion of the outer periphery of the ferrule base 11, and the other end can be fitted onto a portion of the outer periphery of the optical fiber 100. Then, crimping devices such as crimping pliers are used to apply pressure to the crimping ring, so that one end of the crimping ring is crimped and locked to the ferrule base 11, and the other end of the crimping ring is crimped and locked to the optical fiber 100. Thus, the crimping ring achieves a fixed connection between the ferrule base 11 and the optical fiber 100, preventing loosening or other defects between the ferrule base 11 and the optical fiber 100.

[0081] [Corrected according to Rule 91, 30.08.2024] Additionally, as shown in FIG9, in one example provided in this application, the fiber optic connector 10 further includes a protective layer 17, which covers a portion of the outer peripheral surface of the locking member 16 and the optical fiber 100. The protective layer 17 enables a further fixed connection between the locking member 16 and the optical fiber 100, effectively improving the reliability of the connection between them.

[0082] In addition, the protective layer 17 covers part of the outer peripheral surface of the locking member 16, which can effectively protect the locking member 16. Furthermore, the protective layer 17 can also effectively seal the gap between the locking member 16 and the optical fiber 100, preventing external moisture, dust and other impurities from entering the interior of the locking member 16, thus ensuring the safety of the optical fiber connector 10.

[0083] In specific configurations, the protective layer 17 can be heat shrink tubing. Alternatively, the protective layer 17 can also be tape wrapped around the outer periphery of the locking member 16 and the optical fiber 100. In practical applications, the specific structure and type of the protective layer 17 can be reasonably configured according to actual needs, which will not be elaborated here.

[0084] [Corrected according to Rule 91, 30.08.2024] Additionally, as shown in the figure, in one example provided in this application, the fiber optic connector 10 further includes a tail sleeve 18, which is sleeved on the outer periphery of the optical fiber 100 and fixedly connected to the fastener 13. The tail sleeve 18 can effectively protect the optical fiber 100, preventing the optical fiber 100 from bending at a large angle, thereby effectively improving the safety of the optical fiber 100.

[0085] In specific setups, the connection method between the tail sleeve 18 and the fastener 13 can be varied.

[0086] [Corrected according to Rule 91 30.08.2024] For example, as shown in FIG7, in one example provided in this application, the outer peripheral surface of the fastener 13 has a snap-fit ​​groove 131, and the inner wall of the tail sleeve 18 has a snap-fit ​​protrusion 181. The snap-fit ​​protrusion 181 is embedded in the snap-fit ​​groove 131 to achieve a fixed connection between the tail sleeve and the fastener 13.

[0087] In other examples, the fastener 13 and the tail sleeve 18 can also be fixedly connected by means of adhesive bonding, threaded connection, etc., which will not be elaborated here.

[0088] [Correction based on Rule 91, 30.08.2024] In the example provided in this application, the airtightness of the fiber optic connector 10 can be improved by using the protective layer 17. Therefore, in practical applications, sealing measures are no longer required between the tail sleeve 18 and the optical fiber 100. Alternatively, it can be understood that in current fiber optic connectors 10, the tail sleeve 18 is usually made of heat-shrinkable material. After the fiber optic connector 10 and the optical fiber 100 are assembled, the tail sleeve 18 needs to be heat-shrinked to ensure a tight fit between the tail sleeve 18 and the outer peripheral surface of the optical fiber 100, thus guaranteeing the airtightness between the fiber optic connector 10 and the optical fiber 100. However, in the example provided in this application, the airtightness between the fiber optic connector 10 and the optical fiber 100 has been effectively strengthened by setting the protective layer 17. Therefore, heat-shrinking treatment of the tail sleeve 18 is no longer required. In practical applications, the tail sleeve 18 can be made of materials other than heat-shrinkable materials, which improves the flexibility in material selection for the tail sleeve 18 and also helps to reduce the manufacturing cost of the tail sleeve 18.

[0089] [Corrected according to Rule 91, 30.08.2024] It is understood that in the above example, only one end of the optical fiber 100 is shown to have an optical fiber connector 10. In practical applications, optical fiber connectors 10 can also be provided at both ends of the optical fiber 100. The specific structure and type of the optical fiber connectors 10 provided at both ends of the optical fiber 100 can be the same or different, and this application does not limit this.

[0090] [Revised according to Rule 91, 30.08.2024] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0091] [Revised according to Rule 91, August 30, 2024] In this application, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural.

[0092] [Corrected according to Rule 91, 30.08.2024] [Corrected according to Rule 91, 30.08.2024] It is understood that the various numerical designations involved in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the above-mentioned process numbers does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

Claims

1. A fiber optic connector (10), characterized in that, include: The ferrule base (11) has a through hole (111) for the optical fiber (100) to pass through; A sleeve (12) is fitted around the periphery of the ferrule base (11); The outer peripheral surface of the insert base (11) has a first abutting surface (112), and the first abutting surface (112) is set at an angle to the axis of the through hole (111); The inner wall of the sleeve (12) has a first limiting surface (121), which is set at an angle to the axis. The first abutting surface (112) is arranged around the axis of the through hole (111), and / or the first limiting surface (121) is arranged around the axis of the through hole (111); The first abutting surface (112) abuts against the first limiting surface (121) to prevent the ferrule base (11) from moving relative to the sleeve (12) in the first direction, and to allow the sleeve (12) and the ferrule base (11) to rotate relative to each other about the axis. Wherein, the first direction is parallel to the axis.

2. The fiber optic connector (10) according to claim 1, characterized in that, The fiber optic connector (10) also includes a fastener (13) which is threadedly connected to the sleeve (12); The rotation centers of the fastener (13) and the sleeve (12) coincide with the axis.

3. The fiber optic connector (10) according to claim 1 or 2, characterized in that, The insert base (11) further includes a second abutting surface (115), which is set at an angle to the axis. The inner wall of the sleeve (12) has a second limiting surface (124), which is set at an angle to the axis. The second abutting surface (115) is arranged around the axis of the through hole (111), and / or the second limiting surface (124) is arranged around the axis of the through hole (111); The second abutting surface (115) abuts against the second limiting surface (124) to prevent the ferrule base (11) from moving relative to the sleeve (12) in the second direction, and to allow the sleeve (12) and the ferrule base (11) to rotate relative to each other about the axis. The second direction is opposite to the first direction.

4. The fiber optic connector (10) according to any one of claims 1 to 3, characterized in that, The inner wall of the sleeve (12) has at least one protrusion (122), and the first limiting surface (121) is located on the side of the protrusion (122); The outer peripheral surface of the insert base (11) has an annular groove (114), and the first abutting surface (112) is located on the side wall of the annular groove (114).

5. The fiber optic connector (10) according to any one of claims 1 to 3, characterized in that, The inner wall of the sleeve (12) includes an annular flange (123), and the first limiting surface (121) is located on the surface of the annular flange (123) facing the second direction; The outer peripheral surface of the insert base (11) has an annular groove (114), and the first abutting surface (112) is located on the side wall of the annular groove (114).

6. The fiber optic connector (10) according to any one of claims 3 to 5, characterized in that, The outer peripheral surface of the insert base (11) includes an elastic element (116), the end of which extends toward the second direction; The second abutment surface (115) is located at the end of the elastic member (116).

7. The fiber optic connector (10) according to claim 2, characterized in that, The insert base (11) further includes a second abutting surface (115), which is arranged around the axis of the through hole (111) and is arranged at an angle to the axis. The fastener (13) has a second limiting surface (124), which is arranged around the axis of the through hole (111), and the second limiting surface (124) is arranged at an angle to the axis. The second abutting surface (115) abuts against the second limiting surface (124) to prevent the ferrule base (11) from moving relative to the sleeve (12) in the second direction, and to allow the sleeve (12) and the ferrule base (11) to rotate relative to each other about the axis. The second direction is opposite to the first direction.

8. The fiber optic connector (10) according to claim 7, characterized in that, One end of the fastener (13) has an annular end face, and the second limiting surface (124) is located on the end face.

9. The fiber optic connector (10) according to any one of claims 1 to 8, characterized in that, The angle between the first abutting surface (112) and the axis is 90°, and the angle between the first limiting surface (121) and the axis is 90°.

10. The fiber optic connector (10) according to any one of claims 1 to 9, characterized in that, The fiber optic connector (10) also includes a locking element (16); The locking member (16) is fixedly connected to the ferrule base (11) and the optical fiber (100).

11. The fiber optic connector (10) according to claim 10, characterized in that, The fiber optic connector (10) further includes a protective layer (17) that covers a portion of the outer peripheral surface of the locking member (16) and the optical fiber (100).

12. A cable assembly, characterized in that, Includes an optical fiber (100) and an optical fiber connector (10) as claimed in any one of claims 1 to 11, wherein the optical fiber (100) passes through the through hole (111).

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