Adjustable optical fiber attenuator

Abstract

The utility model relates to the technical field of optical fiber communication, and discloses an adjustable optical fiber attenuator, which comprises a main body shell part, a connecting end structure and an optical fiber connector assembly, and is characterized in that the main body shell part comprises a main body shell, radiating fins, a supporting block, a mounting base and a waist-shaped hole; the connecting end structure comprises an end cover structure, an internal connecting groove, an optical fiber module, an internal attenuation adjusting module, a first fixing screw, a second fixing screw, an adjuster and an adjusting knob. According to the utility model, through a mechanical optical path adjusting structure of the internal attenuation adjusting module and the linkage design of the adjusting knob and the adjuster, 0.1 dB high-precision attenuation adjustment is realized, the optical power requirement of an optical fiber communication system is accurately adapted, and the communication quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, specifically to an adjustable optical fiber attenuator. Background Technology

[0002] In fiber optic communication systems, fiber optic attenuators are used to attenuate the optical signal to match the power of the receiving equipment. With the development of fiber optic communication technology, the requirements for the adjustment accuracy, stability, and compatibility of attenuators are becoming increasingly stringent.

[0003] Existing fiber optic attenuators still have the following problems when in use: low adjustment accuracy, making it difficult to accurately control the attenuation amount and affecting communication quality; poor structural stability, with internal components easily loosening after vibration or long-term use, resulting in unstable attenuation performance; and poor adaptability to different types of optical fibers, increasing deployment costs and difficulties. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an adjustable fiber optic attenuator, which features a precisely adjustable internal attenuation adjustment module, a robust structural support assembly, and a compatible fiber optic connection structure, thus solving the problems of low adjustment accuracy, easy structural loosening, and poor compatibility.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable fiber optic attenuator, comprising a main body shell component, a connection end structure, and a fiber optic connector assembly. The main body shell component includes a main body shell, heat dissipation fins, a support block, a mounting base, and an oblong hole. The connection end structure includes an end cap structure, an internal connection groove, a fiber optic module, an internal attenuation adjustment module, a first fixing screw, a second fixing screw, an adjuster, and an adjustment knob. The fiber optic connector assembly includes a fiber optic connector, an adapter connector cylinder, a signal transmission inner core, an adapter connector seat, and a second screw mounting hole.

[0008] The main casing serves as the basic load-bearing component of the attenuator. The heat dissipation fins on the outside can quickly dissipate internal heat, ensuring that the components operate at a suitable temperature. The bottom support block connects to the mounting base, and the waist-shaped hole on the mounting base facilitates fine-tuning of the position during installation, improving installation adaptability.

[0009] The end cap structure seals one end of the main body shell, and the internal connection slot provides installation space for the fiber optic module and the internal attenuation adjustment module. It is assembled with the first fixing screw of the M3-M4 specification to ensure the stable realization of optical signal transmission and attenuation adjustment function. The adjustment knob on the regulator is linked with the internal attenuation adjustment module, and the attenuation parameter can be precisely adjusted by rotating it.

[0010] The fiber optic connector and adapter connector tube are connected to the main body shell through the adapter connector base. The adapter connector base has a second screw mounting hole with a diameter of 3.2-4.2mm. The second fixing screw is used to securely mount the fiber optic connector. The signal transmission core is connected to the fiber optic module to ensure low-loss transmission of optical signals.

[0011] As a further improvement of this utility model, the internal attenuation adjustment module adopts a mechanical optical path adjustment structure, which relies on precision mechanical components to change the length of the optical signal transmission path, thereby achieving a high-precision adjustment of 0.1dB and covering an attenuation range of 0-60dB to meet the optical power control requirements of different scenarios.

[0012] As a further improvement of this utility model: the heat dissipation fins are distributed in an array on the outside of the main body shell, and the heat dissipation gap between adjacent fins increases the air contact area. According to the test, the internal temperature can be reduced by 8-12℃ after 1 hour of continuous operation, ensuring the stable operation of the equipment for a long time.

[0013] As a further improvement of this utility model: the mounting base is made of metal and is treated with rust prevention. The support block is integrally formed or welded with the main shell and the mounting base, and can withstand 5kg of external pressure without deformation, thereby improving the overall stability of the structure.

[0014] As a further improvement of this utility model: the surface of the adjustment knob is provided with an anti-slip texture with a depth of 0.3-0.5mm for easy operation, and a damping structure with a damping coefficient of 0.5-0.8N·m is provided between it and the adjuster to make the adjustment process smooth and avoid accidental operation that changes the attenuation amount.

[0015] As a further improvement of this utility model: the signal transmission core is made of high-transmittance quartz optical fiber, with an optical signal transmission efficiency of over 95%. It is equipped with a suitable connecting tube and optical fiber connector to ensure efficient transmission of optical signals within the attenuator and reduce signal loss.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the mechanical optical path adjustment structure of the internal attenuation adjustment module, combined with the linkage design of the adjustment knob and the regulator, achieves 0.1dB high-precision attenuation adjustment, accurately adapts to the optical power requirements of the optical fiber communication system, and ensures communication quality.

[0018] 2. In this utility model, the heat dissipation, stability and ease of operation of the equipment are improved by the efficient heat dissipation design of the heat dissipation fins, the stable structure of the mounting base and support block, and the damping and anti-slip design of the adjustment knob, thereby extending the service life of the equipment and reducing maintenance costs. Attached Figure Description

[0019] Figure 1 This is a perspective view of the entire utility model;

[0020] Figure 2 This is a perspective view of the external structure of this utility model;

[0021] Figure 3 This is a perspective view of the internal structure of this utility model;

[0022] Figure 4 This is a perspective view of the end structure of this utility model.

[0023] In the diagram: 1. Main body shell component; 2. Connection end structure; 3. Fiber optic connector assembly; 11. Main body shell; 12. Heat dissipation fins; 13. Support block; 14. Mounting base; 15. Waist-shaped hole; 21. End cap structure; 22. Internal connection groove; 23. Fiber optic module; 24. Internal attenuation adjustment module; 25. First fixing screw; 26. Second fixing screw; 27. Adjuster; 28. Adjustment knob; 31. Fiber optic connector; 32. Adapter connector tube; 33. Signal transmission core; 34. Adapter connector base; 35. Second screw mounting hole. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] It should be noted that the optical signal transmission principle and conventional mechanical component connection methods in optical fiber communication are existing technologies and common knowledge to those in this field, and will not be elaborated here.

[0028] Please see Figures 1-4 In this embodiment of the present invention, an adjustable fiber optic attenuator includes a main housing component 1, a connection end structure 2, and a fiber optic connector assembly 3. The main housing component 1 includes a main housing 11, heat dissipation fins 12, a support block 13, a mounting base 14, and a waist-shaped hole 15. The connection end structure 2 includes an end cap structure 21, an internal connection groove 22, a fiber optic module 23, an internal attenuation adjustment module 24, a first fixing screw 25, a second fixing screw 26, an adjuster 27, and an adjustment knob 28. The fiber optic connector assembly 3 includes a fiber optic connector 31, an adapter connector cylinder 32, a signal transmission core 33, an adapter connector seat 34, and a second screw mounting hole 35.

[0029] The main casing 11 serves as the basic load-bearing component of the attenuator. The heat dissipation fins 12 on the outside are 0.8-1.2mm thick and 3-5mm apart, which can quickly dissipate internal heat and ensure that the components operate at a suitable temperature. The bottom support block 13 is 10-15mm high and is connected to the mounting base 14. The mounting base 14 has an oblong hole 15, which is 30-40mm long and 8-10mm wide, to facilitate fine-tuning of the position during installation and improve installation adaptability.

[0030] The end cap structure 21 encloses one end of the main body shell 11. The internal connecting groove 22, with a depth of 20-25mm, provides installation space for the fiber optic module 23 and the internal attenuation adjustment module 24. It is assembled by the first fixing screw 25 of M3-M4 specification to ensure the stable realization of optical signal transmission and attenuation adjustment functions. The adjustment knob 28 on the regulator 27, with a diameter of 25-30mm, is linked with the internal attenuation adjustment module 24. Rotating it can accurately adjust the attenuation parameters.

[0031] The fiber optic connector 31 and the adapter connector 32 are connected to the main body shell 11 through the adapter connector 34. The adapter connector 34 has a second screw mounting hole 35 with a diameter of 3.2-4.2mm, which, together with the second fixing screw 26, securely mounts the fiber optic connector 31. The signal transmission core 33 uses quartz optical fiber with a diameter of 0.125-0.14mm to connect to the optical fiber module 23, ensuring low-loss transmission of optical signals.

[0032] The internal attenuation adjustment module 24 adopts a mechanical optical path adjustment structure, which relies on precision mechanical components to change the length of the optical signal transmission path, achieving high-precision adjustment of 0.1dB, with an attenuation range covering 0-60dB, to meet the optical power control requirements of different scenarios.

[0033] The heat dissipation fins 12 are arranged in an array, with 8-12 fins on the outside of the main shell 11. The heat dissipation gap between adjacent fins increases the air contact area. According to the test, the internal temperature can be reduced by 8-12℃ after 1 hour of continuous operation, ensuring the stable operation of the equipment for a long time.

[0034] The mounting base 14 is made of metal with a thickness of 3-5mm and is treated with rust prevention. The support block 13 is integrally formed or welded with the main shell 11 and the mounting base 14. It can withstand 5kg of external pressure without deformation, thus improving the overall stability of the structure.

[0035] The surface of the adjustment knob 28 is provided with an anti-slip texture with a depth of 0.3-0.5mm for easy operation. A damping structure with a damping coefficient of 0.5-0.8N·m is provided between it and the adjuster 27 to make the adjustment process smooth and avoid accidental operation that changes the attenuation amount.

[0036] The signal transmission core 33 uses high-transmittance quartz optical fiber, with an optical signal transmission efficiency of over 95%. When paired with a suitable connecting tube 32 and an optical fiber connector 31, it ensures efficient transmission of optical signals within the attenuator and reduces signal loss.

[0037] The working principle of this utility model is as follows: First, the optical fiber module 23 and the internal attenuation adjustment module 24 are installed into the internal connection groove 22 of the main body shell 11 through the first fixing screw 25. Then, one end of the main body shell 11 is closed with the end cap structure 21 to complete the internal structure assembly. Then, the optical fiber connector 31 and the adapter connector 32 are connected to the main body shell 11 through the adapter connector 34 and the second fixing screw 26. The signal transmission core 33 is correspondingly connected to the optical fiber module 23. Finally, the attenuator is fixed to the working position using the waist-shaped hole 15 of the mounting base 14. The optical signal is transmitted to the optical fiber module 23 through the optical fiber connector 31 and the signal transmission core 33. The operator rotates the adjustment knob 28, and the regulator 27 is linked with the internal attenuation adjustment module 24 to attenuate the optical signal by changing the optical path. The heat dissipation fins 12 dissipate the heat of the equipment in real time to ensure the stability of the internal components. The mounting base 14 and the support block 13 ensure the stability of the equipment structure. The attenuated optical signal is output through the adapter connector 32 to complete the optical signal attenuation adjustment process.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable fiber optic attenuator, comprising a main housing component (1), a connection end structure (2), and a fiber optic connector assembly (3), characterized in that: The main body shell component (1) includes a main body shell (11), heat dissipation fins (12), support block (13), mounting base (14) and waist-shaped hole (15). The main body shell (11) is provided with heat dissipation fins (12) on its outer side. The bottom of the main body shell (11) is connected to the mounting base (14) through the support block (13). The mounting base (14) is provided with waist-shaped hole (15). The connection end structure (2) includes an end cap structure (21), an internal connection groove (22), an optical fiber module (23), an internal attenuation adjustment module (24), a first fixing screw (25), a second fixing screw (26), an adjuster (27), and an adjustment knob (28); The end cap structure (21) covers one end of the main body shell (11), the internal connection groove (22) is opened inside the main body shell (11), the fiber optic module (23) and the internal attenuation adjustment module (24) are assembled in the internal connection groove (22) by the first fixing screw (25), the regulator (27) is provided with an adjustment knob (28), and the regulator (27) is linked with the internal attenuation adjustment module (24); The fiber optic connector assembly (3) includes a fiber optic connector (31), an adapter connector tube (32), a signal transmission core (33), an adapter connector seat (34), and a second screw mounting hole (35).

2. The adjustable fiber optic attenuator according to claim 1, characterized in that: The fiber optic connector (31) and the adapter connector (32) are each fixedly connected to an adapter connector (34) at opposite ends. The fiber optic connector (31) and the adapter connector (32) are connected to the main body shell (11) through the adapter connector (34). The adapter connector (34) is provided with a second screw mounting hole (35).

3. An adjustable fiber optic attenuator according to claim 1, characterized in that: The internal attenuation adjustment module (24) adopts a mechanical optical path adjustment structure.

4. An adjustable fiber optic attenuator according to claim 1, characterized in that: The heat dissipation fins (12) are arranged in an array on the outside of the main body shell (11), with a quantity of 8-12 fins, and a heat dissipation gap is left between adjacent heat dissipation fins (12).

5. An adjustable fiber optic attenuator according to claim 1, characterized in that: The mounting base (14) is made of metal and the surface is treated with anti-rust. The support block (13) is integrally formed or welded to the main shell (11) and the mounting base (14).

6. An adjustable fiber optic attenuator according to claim 1, characterized in that: The adjustment knob (28) has an anti-slip texture on its surface, and a damping structure is provided between the adjustment knob (28) and the regulator (27).

7. An adjustable fiber optic attenuator according to claim 1, characterized in that: The fiber optic connector (31) and the adapter connector (32) are connected to the fiber optic module (23) through the signal transmission core (33), which is made of high-transmittance quartz fiber.

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