Mini MPO connector and MT-MPO optical fiber connection adapter

Abstract

The utility model discloses a mini MPO connector and an MT-MPO optical fiber connection adapter. According to the technical scheme, the optical fiber connector comprises an insertion core and guide pins arranged at the two ends of the insertion core, at least one row of fiber core insertion holes are formed in the position, corresponding to the guide pins, of the front end of the insertion core, optical fiber insertion grooves communicated with the fiber core insertion holes are formed in the rear end of the insertion core, glue injection grooves communicated with the optical fiber insertion grooves are formed in the end face of the insertion core, and U-shaped clamping grooves are formed in the side wall of the insertion core. The rear end of the guide pin is provided with an annular clamping groove arranged in the U-shaped clamping groove.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical fiber communication, and in particular relates to an MPO connector and an MT-MPO optical fiber connection adapter. Background Art

[0002] Fiber-to-fiber connections, as well as connections between fibers and devices, are primarily achieved through fiber connectors and adapters. With the explosive growth of the internet and cloud services, the demand for fiber connection density is constantly increasing. This means more fiber connections must be made per unit volume. People expect greater bandwidth in smaller spaces and with lower energy consumption. Consequently, multi-fiber optical connectors (MPO), which enable parallel fiber transmission and reception, have gained widespread adoption. MT-MPO fiber connector adapters are designed for connecting multi-fiber optical fibers. Their key feature is their ability to connect multiple fibers simultaneously, significantly improving the port density and signal transmission efficiency of optical communication systems. Traditional MT-MPO fiber connector adapters and multi-fiber optical connectors (MPO) are limited by their structure and connection methods. These adapters have a large number of parts, are bulky, and have poor connection stability. Consequently, these adapters cannot meet the demand for miniaturization. This is particularly true for optical module applications, where the high level of integration and relatively limited space necessitate even smaller MPO connectors and MT-MPO fiber connector adapters. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a mini MPO connector and an MT-MPO optical fiber connection adapter.

[0004] In order to solve the above problems, the technical solution adopted by the present invention includes: a core and guide pins arranged at both ends of the core, characterized in that: at least one row of fiber core holes is provided between the front end of the core and the guide pins, the rear end is provided with an optical fiber slot connected to the fiber core hole, and the end face is provided with a glue injection groove connected to the optical fiber slot, the side wall of the core is provided with a U-shaped groove, and the rear end of the guide pin is provided with an annular groove placed in the U-shaped groove.

[0005] An MT-MPO fiber optic connection adapter includes an adapter body, characterized in that: the adapter body includes a base and an end cover, the front end of the base is provided with a plug-in cavity, the rear end is provided with an end cover mounting notch, the end cover is installed in the end cover mounting notch, a first hook is provided on both sides of the plug-in cavity, the rear end of the end cover mounting notch is provided with a lower mounting groove for mounting the above-mentioned mini MPO connector, and a U-shaped clip is provided in the middle of the lower mounting groove, the rear end of the end cover is provided with an upper mounting groove for mounting the above-mentioned mini MPO connector, and the upper mounting groove is provided with an "I"-shaped clip that adapts to the two ends of the U-shaped clip.

[0006] The MT-MPO fiber optic connection adapter is characterized in that: mounting holes are provided on both sides of the end cover mounting notch of the base, and a hanging platform is provided at the bottom of the mounting hole, mounting columns adapted to the mounting holes are provided on both sides of the end cover, and a second hook is provided on the mounting column to be hung with the hanging platform.

[0007] The MT-MPO optical fiber connection adapter is characterized in that a groove is provided between the base and the end cover.

[0008] The MT-MPO optical fiber connection adapter is characterized in that a guide groove is provided in the plug-in cavity of the base.

[0009] The MT-MPO optical fiber connection adapter is characterized in that the U-shaped clamping rib and the "I"-shaped clamping rib are jointly clamped to the U-shaped clamping groove and the annular clamping groove of the above-mentioned mini MPO connector.

[0010] The advantages of the mini MPO connector and MT-MPO fiber optic connection adapter of the present invention are as follows: by improving the structure and connection method of the MPO connector and MT-MPO fiber optic connection adapter themselves, the MPO connector is installed as a whole inside the rear end of the MT-MPO fiber optic connection adapter to form an assembly structure, thereby greatly reducing the number of product parts, and the product is smaller in size and has a more stable connection.

[0011] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an exploded view of the MPO connector of the present invention;

[0013] Figure 2 It is a cross-sectional view of the MPO connector of the present utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the ferrule of the utility model;

[0015] Figure 4It is a cross-sectional view of the ferrule of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the utility model mini MT-MPO optical fiber connection adapter;

[0017] Figure 6 This is a cross-sectional view of the mini MT-MPO optical fiber connector adapter of the utility model;

[0018] Figure 7 It is a structural diagram of the base of the utility model;

[0019] Figure 8 It is a structural diagram of the end cover of the utility model;

[0020] Figure 9 This is a connection diagram of the mini MT-MPO optical fiber connection adapter and the MPO connector of the utility model. DETAILED DESCRIPTION Embodiment 1:

[0021] Reference Figure 1-4 As shown, the mini MPO connector of the present invention includes a ferrule 17 and guide pins 18 provided at both ends of the ferrule 17. A row of fiber core holes 21 are provided between the front end of the ferrule 17 and the guide pins 18. A fiber optic slot 22 communicating with the fiber core holes 21 is provided at the rear end of the ferrule 17. A glue injection groove 23 communicating with the fiber optic slot 22 is provided on the end face of the ferrule 17. A U-shaped card slot 19 is provided on the side wall of the ferrule 17, and an annular card slot 20 is provided at the rear end of the guide pin 18 and is placed in the U-shaped card slot 19. The above-mentioned row of fiber core holes 21 is usually 12, and two or three or more rows can be provided as needed. During assembly, the optical fiber 24 is inserted through the fiber optic slot 22 of the ferrule 17, and the ferrule is inserted into the fiber core hole 2. During the plugging process, the glue injection groove 23 is convenient for the user to observe. When the plugging is complete, the optical fiber is fixed by injecting fixing glue into the glue injection groove 23. Example 2:

[0022] Reference Figure 5-9As shown, the MT-MPO fiber optic connector adapter of the present invention is adapted (coupled) to the mini MPO connector described in Example 1. It includes an adapter body 1, which includes a base 2 and an end cap 3. The base 2 has an insertion cavity 4 at the front end for accommodating the MT fiber optic connector, and an L-shaped end cap mounting notch 5 at the rear end. The end cap 3 is mounted within the end cap mounting notch 5. First hooks 6 are provided on either side of the insertion cavity 4 for attaching to the MT fiber optic connector. A lower mounting groove 7 for accommodating the mini MPO connector described in Example 1 is provided at the rear end of the end cap mounting notch 5, with a U-shaped retaining rib 8 located in the middle. An upper mounting groove 9 for accommodating the mini MPO connector described in Example 1 is provided at the rear end of the end cap 3, with I-shaped retaining ribs 10 located within the upper mounting groove 9 to mate with the ends of the U-shaped retaining rib 8. The mini MPO connector described in Example 1 is mounted between the lower and upper mounting grooves 7 and 9 and is secured by the U-shaped retaining ribs 8 and I-shaped retaining rib 10. When the U-shaped retaining rib 8 and the "I"-shaped retaining rib 10 engage the U-shaped retaining groove 19 of the ferrule 17, they also engage the annular retaining groove 20 of the guide pin 18, thereby preventing the guide pin 18 from retreating. During assembly, the ferrule 17 of the mini MPO connector described in Example 1 is first installed in the lower mounting groove 7 of the base 2, and then the end cap 3 is installed.

[0023] Preferably, mounting holes 11 are provided on both sides of the end cap mounting notch 5 of the base 2, and a hanging platform 12 is provided at the bottom of the mounting hole 11. Mounting posts 13 adapted to the mounting holes 11 are provided on both sides of the end cap 3, and the mounting posts 13 are provided with second hooks 14 that are hooked to the hanging platform 12. During assembly, the mounting posts 13 of the end cap 3 are simply inserted into the mounting holes 11 of the base 2, thereby facilitating assembly and disassembly of the end cap 3.

[0024] Preferably, a groove 15 is provided between the base 2 and the end cover 3. The groove 15 is provided to facilitate the user to hold the end cover 3 for plugging and unplugging.

[0025] Preferably, a guide groove 16 is provided in the insertion cavity 4 of the base 2. The guide groove 16 is used to cooperate with the convex key on the MT optical fiber connector to play a guiding and foolproof role.

[0026] As mentioned above, this does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the above-disclosed structures and technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A mini MPO connector, comprising a ferrule (17) and guide pins (18) provided at both ends of the ferrule (17), characterized in that: At least one row of fiber core jacks (21) is provided between the front end of the ferrule (17) and the guide pin (18), a fiber optic slot (22) communicating with the fiber core jack (21) is provided at the rear end, and a glue injection groove (23) communicating with the fiber optic slot (22) is provided on the end face, a U-shaped card slot (19) is provided on the side wall of the ferrule (17), and a ring card slot (20) is provided at the rear end of the guide pin (18) and is placed in the U-shaped card slot (19).

2. An MT-MPO optical fiber connection adapter, comprising an adapter body (1), characterized in that: The adapter body (1) includes a base (2) and an end cover (3), the base (2) is provided with a plug-in cavity (4) at the front end and an end cover mounting notch (5) at the rear end, the end cover (3) is mounted in the end cover mounting notch (5), and first hooks (6) are provided on both sides of the plug-in cavity (4), the end cover mounting notch (5) is provided with a lower mounting groove (7) for mounting the mini MPO connector according to claim 1 at the rear end, and a U-shaped clamping rib (8) is provided in the middle of the lower mounting groove (7), the end cover (3) is provided with an upper mounting groove (9) for mounting the mini MPO connector according to claim 1 at the rear end, and a "I"-shaped clamping rib (10) adapted to the two ends of the U-shaped clamping rib (8) is provided in the upper mounting groove (9).

3. The MT-MPO optical fiber connector according to claim 2, wherein: Mounting holes (11) are provided on both sides of the end cover mounting notch (5) of the base (2), and a hanging platform (12) is provided at the bottom of the mounting hole (11). Mounting columns (13) adapted to the mounting holes (11) are provided on both sides of the end cover (3), and a second hook (14) connected to the hanging platform (12) is provided on the mounting column (13).

4. The MT-MPO optical fiber connector according to claim 2, wherein: A groove (15) is provided between the base (2) and the end cover (3).

5. The MT-MPO optical fiber connector according to claim 2, wherein: A guide groove (16) is provided in the insertion cavity (4) of the base (2).

6. The MT-MPO optical fiber connector according to claim 2, wherein: The U-shaped clamping rib (8) and the "I"-shaped clamping rib (10) are jointly clamped to the U-shaped clamping groove (19) and the annular clamping groove (20) of the mini MPO connector according to claim 1.

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