A high precision mating device for fiber optic connectors

Abstract

The utility model discloses a high accuracy adaptation device of optical fiber connector relates to optical fiber connection equipment technical field, including metal adapter, install ceramic sleeve in metal adapter, the center hole department of ceramic sleeve outside embedding fixed in metal adapter, the edge of metal adapter is respectively opened with main recess and vice recess, and the main recess and vice recess form an elongated strip metal structure between, make it have certain elasticity, and the detachable connection of metal adapter has optical fiber connector, is provided with metal key on optical fiber connector, and metal key inserts into main recess. The utility model discloses after cooperation with optical fiber connector, through the position and angle of limiting product cooperation, enhance the stability of connection relation, make optical fiber connector effective switching and fixed, limit its internal structure rotation and deviation, improve product quality, and save assembly and debugging time, improve operation efficiency, also have the advantage that metal processing spare is easy to process, and the price is low, and the overall cost is not high.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber connection equipment technology, and in particular to a high-precision adapter for an optical fiber connector. Background Technology

[0002] With the increasing maturity of fiber optic communication technology, fiber optic connectors are widely used in devices across various communication fields. In the use of fiber optic connectors, there are sometimes situations where the connector end face is directly used as a light source output for coupling. In such cases, high-precision positioning of the connector is particularly important. When using FC / APC type fiber optic connectors, a matching adapter structure is required to effectively fix the connector end face to the assembly.

[0003] In existing technologies, due to dimensional tolerances and structural factors between the adapter structure and the connector, the fiber core of the connector will have a certain deviation and room for movement from the ideal position after they are fitted together. The fiber core will move within the tolerance range as the product moves. This causes the angle and position of the output fiber end face to shift from the optical path structure, thereby affecting coupling efficiency, quality, and product stability.

[0004] Therefore, this utility model provides a high-precision adapter for fiber optic connectors to solve the problems existing in the prior art. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a high-precision adapter for an optical fiber connector, including a metal adapter, a ceramic sleeve installed inside the metal adapter, a circular hole in the center of the metal adapter, the ceramic sleeve being externally embedded and fixed at the central circular hole of the metal adapter, a main groove and a secondary groove respectively formed on the edge of the metal adapter, a slender strip-shaped metal structure being formed between the main groove and the secondary groove to give it a certain degree of elasticity, an optical fiber connector being detachably connected to the metal adapter, a metal key being provided on the optical fiber connector, and the metal key being inserted into the main groove.

[0006] Optionally, the metal adapter is divided into a front end and a rear end, with both the main groove and the secondary groove located at the rear end.

[0007] Optionally, the rear end is provided with a thread, which is used to connect with the threaded part of the fiber optic connector.

[0008] Optionally, the fiber optic connector is provided with a ceramic ferrule, and the inner wall of the ceramic sleeve is in close contact with the ceramic ferrule.

[0009] Optionally, the size of the main groove is larger than the size of the secondary groove.

[0010] Optionally, the ceramic sleeve is a cylindrical ring.

[0011] This utility model discloses the following technical effects: During use, the metal key of the fiber optic connector is inserted into the main groove. Because the width of the metal key is larger than the width of the main groove, the strip-shaped metal structure deflects towards the secondary groove during insertion. After insertion, the strip-shaped metal structure applies the force generated by its deformation to the metal key, confining it within the main groove and making it difficult for it to deflect or shift. When used with a fiber optic connector, this utility model enhances the stability of the connection by limiting the position and angle of the mating parts, enabling effective connection and fixation of the fiber optic connector, restricting internal structural rotation and offset, improving product quality, saving assembly and debugging time, and increasing operational efficiency. It also has the advantages of easy processing of metal parts, low price, and low overall cost. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the fiber optic connector of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the metal adapter of this utility model;

[0016] Figure 4 This is an assembly drawing of the metal adapter and ceramic sleeve of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the ceramic sleeve of this utility model;

[0018] In the diagram: 1. Metal adapter; 2. Fiber optic connector; 3. Ceramic ferrule; 4. Ceramic sleeve; 5. Front end; 6. Rear end; 7. Main groove; 8. Secondary groove; 9. Metal key. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figures 1-5 As shown, this embodiment provides a high-precision adapter for an optical fiber connector, including a metal adapter 1, a ceramic sleeve 4 installed inside the metal adapter 1, a circular hole in the center of the metal adapter 1, the ceramic sleeve 4 being externally embedded and fixed in the central circular hole of the metal adapter 1, a main groove 7 and a secondary groove 8 respectively opened on the edge of the metal adapter 1, a slender strip-shaped metal structure being formed between the main groove 7 and the secondary groove 8, giving it a certain elasticity, and an optical fiber connector 2 detachably connected to the metal adapter 1, the optical fiber connector 2 being provided with a metal key 9, the metal key 9 being inserted into the main groove 7.

[0022] In use, the metal key 9 of the fiber optic connector 2 is inserted into the main groove 7. Since the width of the metal key 9 is larger than the width of the main groove 7, insertion causes the strip-shaped metal structure to deflect towards the secondary groove 8. After insertion, the strip-shaped metal structure applies force generated by its deformation to the metal key 9, confining it within the main groove 7 and preventing deflection or displacement. When used with the fiber optic connector 2, this invention enhances the stability of the connection by limiting the position and angle of the mating parts, effectively transferring and fixing the fiber optic connector 2, restricting its internal structural rotation and offset, improving product quality, saving assembly and debugging time, and increasing work efficiency. It also has the advantages of easy processing of metal parts, low price, and low overall cost.

[0023] Further refining the design, the metal adapter 1 is divided into a front end 5 and a rear end 6, with both the main groove 7 and the secondary groove 8 located at the rear end 6. The different functions of the front end 5 and the rear end 6 reduce structural complexity and improve assembly efficiency.

[0024] Furthermore, such as Figure 3 As shown, there is an angle between the front end 5 and the rear end 6 to accommodate the 8° angle of the outgoing light path caused by the APC end face.

[0025] The rear end 6 is a concentrated stress area: As the main connection area with the connector, the rear end 6 has a groove that can specifically enhance the elastic deformation capability and avoid the front end 5 being affected by the fiber alignment accuracy.

[0026] Further refining the design, the outer side of the rear end 6 is provided with threads for threaded connection with the threaded part of the fiber optic connector 2. The threaded connection provides axial preload to prevent loosening caused by vibration or temperature changes, improving mechanical reliability. The threads are designed to be detachable, facilitating maintenance or adapter replacement and reducing operating costs.

[0027] Further refining the design, a ceramic ferrule 3 is installed inside the fiber optic connector 2, and the inner wall of the ceramic sleeve 4 is in close contact with the ceramic ferrule 3. The use of the same material for the ceramic ferrule 3 and the ceramic sleeve 4 reduces gaps caused by thermal deformation, ensuring low insertion loss transmission of optical signals. The high hardness of the ceramic material reduces wear during insertion and removal, extends service life, and maintains a long-term high-precision connection.

[0028] Further refining the design, the main groove 7 is larger than the secondary groove 8. The larger main groove 7 facilitates the quick insertion of the metal key 9, while the smaller secondary groove 8, through a tight fit, restricts the circumferential and radial movement of the fiber optic connector 2, balancing assembly convenience and positioning accuracy. The main groove 7 bears the main insertion force, while the secondary groove 8 refines the positioning, avoiding structural deformation caused by localized stress concentration.

[0029] Further refining the design, the ceramic sleeve 4 is a cylindrical ring. The inner wall of the cylindrical ring structure is smooth, and it can achieve high-precision coaxial positioning when it fits with the outer circle of the ceramic insert 3, reducing axial offset and ensuring uniform radial force, thus avoiding cracking or deformation of the ceramic sleeve 4 due to local pressure.

[0030] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A high-precision adapter for an optical fiber connector, characterized in that: The device includes a metal adapter (1), a ceramic sleeve (4) installed inside the metal adapter (1), a circular hole in the center of the metal adapter (1), and the ceramic sleeve (4) is embedded and fixed in the circular hole in the center of the metal adapter (1). A main groove (7) and a secondary groove (8) are respectively opened on the edge of the metal adapter (1). A long strip-shaped metal structure is formed between the main groove (7) and the secondary groove (8), giving it a certain elasticity. The metal adapter (1) is detachably connected to an optical fiber connector (2). A metal key (9) is provided on the optical fiber connector (2), and the metal key (9) is inserted into the main groove (7).

2. The high-precision adapter for fiber optic connectors according to claim 1, characterized in that: The metal adapter (1) is divided into a front end (5) and a rear end (6), and the main groove (7) and the secondary groove (8) are both located on the rear end (6).

3. The high-precision adapter for fiber optic connectors according to claim 2, characterized in that: The rear end (6) is provided with a thread on the outside, which is used to connect with the threaded part of the optical fiber connector (2).

4. The high-precision adapter for fiber optic connectors according to claim 1, characterized in that: The fiber optic connector (2) is provided with a ceramic ferrule (3), and the inner wall of the ceramic sleeve (4) is in close contact with the ceramic ferrule (3).

5. The high-precision adapter for fiber optic connectors according to claim 1, characterized in that: The main groove (7) is larger than the secondary groove (8).

6. The high-precision adapter for fiber optic connectors according to claim 1, characterized in that: The ceramic sleeve (4) is a cylindrical ring.

Images