MPO connector
By introducing a movable wire-fixing structure and a spherical arc groove design into the MPO connector, the clamping force and stability of the optical fiber are enhanced, solving the problem of optical fiber slippage or detachment under external force in existing MPO connectors, and achieving a more stable optical fiber connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-06
AI Technical Summary
Existing MPO connectors are prone to fiber slippage or detachment under external force, resulting in poor fixation.
An MPO connector was designed, employing a fixed wire structure that is movably arranged within the mating sleeve. This structure includes a rectangular frame and a flexible triangular support, forming a <-shaped structure. The dynamic response mechanism of the flexible triangular support enhances the clamping force. Combined with the design of the sphere and the arc groove, it ensures that the optical fiber and the sphere always maintain full contact, thus enhancing clamping stability.
It achieves stable clamping of optical fiber under external force, preventing loosening or falling off, with better and more stable clamping effect, solving the problem of poor fixation of traditional MPO connectors.
Smart Images
Figure CN223977381U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical communication device technology, and more specifically, to an MPO connector. Background Technology
[0002] In optical communication systems, MPO connectors are widely used for connecting fiber optic lines and are often used as the connector type for high-speed transmission standards, such as the IEEE 802.3bm standard for 40G / 100G transmission, and can be used in data centers.
[0003] In existing MPO connectors, to ensure the stability of the connection between the light and the fiber optic connector and the fiber, and to prevent the light from detaching from the fiber optic connector due to external force, a vertical plate is usually used to clamp and fix the fiber. However, the clamping of the vertical plate fixes the fiber by a fixed frictional force, which is a static value. When the external force exceeds this frictional force, the fiber is prone to sliding or even falling out of the connector. It cannot automatically enhance the clamping effect with changes in external force, and its ability to protect and fix the fiber is limited. In view of this, we propose an MPO connector. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide an MPO connector to solve the technical problem of poor fiber optic fixing effect of current MPO connectors.
[0005] To solve the above technical problems, this utility model provides the following technical solution: an MPO connector, comprising an MPO connector body, a protective sleeve covering the MPO connector body, the MPO connector body including an optical fiber, a base sleeve, a spring, a mating sleeve, an optical fiber connector, and an outer fixing sleeve, the mating sleeve being connected to the base sleeve via the spring, the mating sleeve being inserted into the optical fiber connector, the optical fiber passing through the base sleeve, the spring, and the mating sleeve, and the free end of the optical fiber being connected to the optical fiber connector, the outer fixing sleeve being fixed outside the base sleeve, the spring, the mating sleeve, and the optical fiber connector, a wire-fixing structure being movably arranged inside the mating sleeve, the wire-fixing structure including a rectangular frame, symmetrical elastic triangular supports being rotatably arranged on the top and bottom of one side of the rectangular frame, and the two sets of elastic triangular supports forming a < shape, the elastic triangular support including a top frame, an elastic rod, and a bottom frame;
[0006] A sphere is rolled on the side of the base frame corresponding to the optical fiber line, and an arc-shaped groove corresponding to the optical fiber line is opened on the outer surface of the sphere.
[0007] Preferably, the top frame is rotatably arranged on the rectangular frame, the bottom frame is rotatably arranged on the bottom of the top frame facing the rectangular frame, the elastic rods are rotatably arranged at both ends of the bottom of the top frame facing away from the rectangular frame, and the bottom end of the elastic rods is rotatably connected to the top of the bottom frame facing away from the rectangular frame.
[0008] Preferably, the bottom and top sides of the docking sleeve are symmetrically provided with positioning grooves, and the end of the positioning groove facing the fiber optic connector is open. The top frame is provided with positioning strips symmetrical to the positioning grooves, and the size of the rectangular frame is the same as the inner cavity size of the docking sleeve.
[0009] Preferably, the positioning strip has an inclined surface facing one end of the rectangular frame.
[0010] Preferably, the base frame has a groove corresponding to the sphere, the groove is larger than a semicircle, and the sphere is located inside the groove.
[0011] Preferably, a limiting groove is formed around the center of the inner wall of the ball groove, and several sets of equidistant balls are rolled around the center of the outer wall of the ball, with the balls located within the limiting groove.
[0012] Preferably, a rubber pad is arranged inside the arc-shaped groove, and the surface of the rubber pad is provided with anti-slip texture.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model utilizes a movable fixing structure arranged within a docking sleeve. Two sets of symmetrical elastic triangular supports are rotatably arranged on one side of the rectangular frame of the fixing structure, forming a <-shape between them. Therefore, after the optical fiber passes through the docking sleeve, the fixing structure can be directly pushed into the sleeve. Once the fixing structure is fully inside the docking sleeve, the top frame of the elastic triangular supports becomes horizontal, and the bottom frame rotates under the push of the elastic rod. One side of the bottom frame then presses against the optical fiber, meaning the two sets of bottom frame sides can directly clamp the optical fiber. Furthermore, because the two sets of elastic triangular supports are shaped like a "<", when the optical fiber is pulled by an external force, it will cause the two sets of base frames to rotate to the right, increasing the angle between the two sets of base frames. At this time, the elastic rods synchronously push the base frames, increasing the pressure of the base frames on the optical fiber, forming a dynamic response mechanism of "the greater the external force, the tighter the clamping". This mechanism can better and more effectively resist external forces and prevent the optical fiber from loosening or falling off. Compared with the traditional vertical clamping, this method is more effective and stable, solving the technical problem of poor optical fiber fixing effect of current MPO connectors. Therefore, this utility model has the advantage of more stable optical fiber connection.
[0015] 2. The base frame of this utility model has movably arranged spheres corresponding to the optical fiber on the clamping edge, and the outer surface of the spheres is provided with arc-shaped grooves corresponding to the optical fiber. Therefore, when the base frame rotates, the arc-shaped grooves of the spheres can always remain horizontal, and the arc-shaped grooves of the spheres can always maintain full contact with the optical fiber. This avoids the contact area between the spheres and the optical fiber decreasing as the base frame rotates, which would affect the clamping effect of the two sets of base frames on the optical fiber, thus further ensuring the clamping stability of the optical fiber. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is an exploded view of the main body of the MPO connector of this utility model;
[0018] Figure 3 This is a schematic cross-sectional view of the main body of the MPO connector of this utility model;
[0019] Figure 4 This is a schematic diagram of the docking sleeve and fixing structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the docking sleeve structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the wire fixing structure of this utility model;
[0022] Figure 7 This is a partial cross-sectional structural diagram of the base frame of this utility model.
[0023] Explanation of the labels in the diagram:
[0024] 1. MPO connector body; 101. Protective sleeve; 2. Fiber optic cable; 3. Base sleeve; 4. Spring; 5. Connecting sleeve; 501. Positioning groove; 6. Fiber optic connector; 7. Outer fixing sleeve; 8. Wire fixing structure; 9. Elastic triangular bracket; 901. Top frame; 902. Elastic rod; 903. Base frame; 904. Ball groove; 905. Ball; 906. Arc groove; 907. Limiting groove; 908. Ball bearing; 909. Rubber pad; 9010. Positioning strip; 9011. Inclined surface; 10. Rectangular frame. Detailed Implementation
[0025] like Figures 1 to 7As shown, this utility model relates to an MPO connector, including an MPO connector body 1, a protective sleeve 101 fitted on the MPO connector body 1, an MPO connector body 1 including an optical fiber 2, a base sleeve 3, a spring 4, a mating sleeve 5, an optical fiber connector 6, and an outer fixing sleeve 7. The mating sleeve 5 is connected to the base sleeve 3 via the spring 4, and the mating sleeve 5 is inserted into the optical fiber connector 6. The optical fiber 2 passes through the base sleeve 3, the spring 4, and the mating sleeve 5, and the free end of the optical fiber 2 is connected to the optical fiber connector 6. The outer fixing sleeve 7 is fixed outside the base sleeve 3, the spring 4, the mating sleeve 5, and the optical fiber connector 6. A wire fixing structure 8 is movably arranged inside the mating sleeve 5. The wire fixing structure 8 includes a rectangular frame 10, with symmetrically arranged top and bottom edges on one side of the rectangular frame 10. The elastic triangular support 9 is arranged in a < shape between two sets of elastic triangular supports 9. The elastic triangular support 9 includes a top frame 901, elastic rods 902 and a base frame 903. The top frame 901 is rotatably arranged on the rectangular frame 10, the base frame 903 is rotatably arranged on the side of the bottom of the top frame 901 facing the rectangular frame 10, and the elastic rods 902 are rotatably arranged at both ends of the bottom of the top frame 901 facing away from the rectangular frame 10. The bottom end of the elastic rod 902 is rotatably connected to the top of the base frame 903 facing away from the rectangular frame 10. It should be noted that the MPO connector body 1, which consists of the optical fiber 2, base sleeve 3, spring 4, mating sleeve 5, optical fiber connector 6 and outer fixing sleeve 7, is prior art and will not be described in detail here.
[0026] When connecting fiber optic cable 2, fiber optic cable 2 is first passed through base sleeve 3 and mating sleeve 5 in sequence. Then, the fixing structure 8 is pushed into the mating sleeve 5. When the fixing structure 8 is fully inserted into the mating sleeve 5, the top frame 901 of the elastic triangular bracket 9 is horizontal. Then, the bottom frame 903 rotates under the push of the elastic rod 902, and one side of the bottom frame 903 will press against the fiber optic cable 2. That is, the two sets of bottom frames 903 can directly clamp the fiber optic cable 2 by their side cooperation. Moreover, because the two sets of elastic triangular brackets 9 are in a < shape, when the fiber optic cable 2 is pulled by an external force, it will drive the two sets of bottom frames 903 to rotate to the right. As the included angle of the base frame 903 increases, the elastic rod 902 simultaneously pushes the base frame 903, increasing the pressure of the base frame 903 on the optical fiber 2. This forms a dynamic response mechanism of "the greater the external force, the tighter the clamping," which can better and more effectively resist external forces and prevent the optical fiber 2 from loosening or falling off. Compared with the traditional vertical clamping, this method is more effective and stable. Then, the mating sleeve 5 is inserted into the optical fiber connector 6, and the free end of the optical fiber 2 is inserted into the optical fiber connector 6 and connected to it. Finally, the outer fixing sleeve 7 is fitted onto the base sleeve 3, the mating sleeve 5, and the optical fiber connector 6 to form a complete MPO connector body 1.
[0027] Specifically, positioning grooves 501 are symmetrically provided on both sides of the bottom and top of the docking sleeve 5, and the end of the positioning groove 501 facing the fiber optic connector 6 is open. Positioning strips 9010 symmetrical to the positioning grooves 501 are arranged on the top frame 901. The size of the rectangular frame 10 is the same as the inner cavity size of the docking sleeve 5. When the fixed structure 8 is pushed into the docking sleeve 5, the positioning strips 9010 are located in the positioning grooves 501. This serves two purposes: firstly, it positions the fixed structure 8; secondly, after the docking sleeve 5 is inserted and connected to the fiber optic connector 6, one end of the positioning strips 9010 will press against the side of the fiber optic connector 6, thereby ensuring that the fixed structure 8 is stably arranged in the docking sleeve 5.
[0028] Furthermore, the positioning strip 9010 has an inclined surface 9011 at one end facing the rectangular frame 10; the inclined surface 9011 serves as a guide, making it easier for the starting end of the top frame 901 to be pushed more smoothly into the docking sleeve 5.
[0029] In an embodiment of this utility model, a sphere 905 is rolled on the side of the base frame 903 corresponding to the optical fiber 2, and an arc-shaped groove 906 corresponding to the optical fiber 2 is opened on the outer surface of the sphere 905.
[0030] When the base frame 903 rotates, the arc groove 906 of the sphere 905 can always remain horizontal, and the arc groove 906 of the sphere 905 can always maintain full contact with the optical fiber 2. This avoids the contact area between the sphere 905 and the optical fiber 2 becoming smaller as the base frame 903 rotates, which would affect the clamping effect of the two sets of base frames 903 on the optical fiber 2. This further ensures the clamping stability of the optical fiber 2.
[0031] Specifically, the base frame 903 has a ball groove 904 corresponding to the ball 905. The ball groove 904 is larger than a semicircle, and the ball 905 is located inside the ball groove 904. A limiting groove 907 is formed around the center of the inner wall of the ball groove 904, and several sets of equidistant balls 908 are rolled around the center of the outer wall of the ball 905, and the balls 908 are located inside the limiting groove 907. The ball 905 can roll freely in the ball groove 904. Then, with the cooperation of the limiting groove 907 and the balls 908, the ball 905 can be fixed and limited, so that it can only rotate left and right, ensuring that the arc groove 906 of the ball 905 can be aligned with the optical fiber line 2.
[0032] Furthermore, a rubber pad 909 is arranged inside the arc-shaped groove 906, and the surface of the rubber pad 909 is provided with anti-slip texture; the rubber pad 909 and the anti-slip texture can better ensure the clamping effect of the arc-shaped groove 906 on the optical fiber 2.
[0033] Working Principle: This embodiment provides an MPO connector. First, when connecting the optical fiber 2, the optical fiber 2 is passed through the base sleeve 3 and the mating sleeve 5 in sequence. Then, the fixing structure 8 is pushed into the mating sleeve 5. When the fixing structure 8 is fully inserted into the mating sleeve 5, the top frame 901 of the elastic triangular bracket 9 is horizontal. Then, the bottom frame 903 rotates under the push of the elastic rod 902, and one side of the bottom frame 903 will press against the optical fiber 2. That is, the two sets of bottom frames 903 can directly clamp the optical fiber 2 by their side cooperation. Moreover, because the two sets of elastic triangular brackets 9 are in a < shape, when the optical fiber 2 is pulled by an external force, it will drive the two sets of bottom frames 903. The frame 903 rotates to the right, and the angle between the two sets of base frames 903 increases. At this time, the elastic rod 902 pushes the base frame 903 synchronously, which increases the pressure of the base frame 903 on the optical fiber 2, forming a dynamic response mechanism of "the greater the external force, the tighter the clamping". This can better and more effectively resist external forces and prevent the optical fiber 2 from loosening or falling off. Compared with the traditional vertical clamping, it is better and more stable. Then, the mating sleeve 5 is inserted into the optical fiber connector 6, and the free end of the optical fiber 2 is inserted into the optical fiber connector 6 and connected to the optical fiber connector 6. Then, the outer fixing sleeve 7 is fitted onto the base sleeve 3, the mating sleeve 5, and the optical fiber connector 6 to form a complete MPO connector body 1.
[0034] Secondly, when the base frame 903 rotates, the arc groove 906 of the sphere 905 can always remain horizontal, and the arc groove 906 of the sphere 905 can always maintain full contact with the optical fiber 2. This avoids the contact area between the sphere 905 and the optical fiber 2 becoming smaller as the base frame 903 rotates, which would affect the clamping effect of the two sets of base frames 903 on the optical fiber 2. This further ensures the clamping stability of the optical fiber 2.
[0035] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.
Claims
1. An MPO connector characterized by, The utility model provides a kind of MPO connector, including MPO connector body (1), the MPO connector body (1) is covered with protective sleeve (101), the MPO connector body (1) includes optical fiber line (2), base sleeve (3), spring (4), butt joint sleeve (5), optical fiber joint (6) and outer fixed sleeve (7), the butt joint sleeve (5) is connected with base sleeve (3) by spring (4), the butt joint sleeve (5) is inserted and is connected with optical fiber joint (6), the optical fiber line (2) passes through base sleeve (3), spring (4) and butt joint sleeve (5), and optical fiber line (2) free end is connected with optical fiber joint (6), the outer fixed sleeve (7) is fixed in base sleeve (3), spring (4), butt joint sleeve (5) and optical fiber joint (6) outside, the inside movable arrangement of butt joint sleeve (5) has wire fixing structure (8), the wire fixing structure (8) includes rectangular frame (10), the top and bottom of one side of rectangular frame (10) rotatably arranged with symmetrical elastic triangular support (9), and two groups of elastic triangular support (9) are in < type between, the elastic triangular support (9) includes roof (901), elastic lever (902) and bottom frame (903); The side corresponding to optical fiber line (2) of bottom frame (903) is rotatably arranged with ball (905), and the outer surface of ball (905) is provided with arc-shaped groove (906) corresponding to optical fiber line (2).
2. The MPO connector of claim 1, wherein, The top of roof (901) is rotatably arranged on rectangular frame (10), the bottom of bottom frame (903) is rotatably arranged on the side of rectangular frame (10), the elastic lever (902) is rotatably arranged on the two ends of the bottom of roof (901) away from the side of rectangular frame (10), and the bottom end of elastic lever (902) is rotatably connected with the top of bottom frame (903) away from the side of rectangular frame (10).
3. The MPO connector of claim 1, wherein, The two sides of the inner bottom and the inner top of butt joint sleeve (5) are symmetrically provided with positioning groove (501), and the end of positioning groove (501) towards optical fiber joint (6) is open, the positioning strip (9010) symmetrical with positioning groove (501) is arranged on roof (901), and the size of rectangular frame (10) is same with the size of the inner cavity of butt joint sleeve (5).
4. The MPO connector of claim 3, wherein, The end of positioning strip (9010) towards rectangular frame (10) is inclined surface (9011).
5. The MPO connector of claim 1, wherein, Ball groove (904) corresponding to ball (905) is formed in bottom frame (903), and ball groove (904) is larger than semicircle, and ball (905) is located in ball groove (904).
6. The MPO connector of claim 5, wherein, Limiting groove (907) is formed in the inner wall of ball groove (904) around the center, and a plurality of groups of equidistant rolling balls (908) are rotatably arranged on the outer wall of ball (905) around the center, and rolling balls (908) are located in limiting groove (907).
7. The MPO connector of claim 1, wherein, Rubber pad (909) is arranged in arc-shaped groove (906), and anti-skid lines are arranged on the surface of rubber pad (909).