High-precision optical fiber collimator

Abstract

The utility model relates to the technical field of optical fiber communication, and discloses a high-precision optical fiber collimator, which comprises an optical fiber connecting assembly, an optical and heat dissipation assembly and a main body shell assembly, the optical fiber connecting assembly comprises an optical fiber interface, a protective sleeve and a connector; the optical and heat dissipation assembly comprises an optical installation frame, an optical component, a protection plate, a threaded connection column, a heat dissipation cover, a first assembly sleeve and an assembly hole. According to the utility model, through the accurate alignment design of the optical fiber connection assembly, namely alignment of an optical fiber interface and an internal optical path, protection of the protective sleeve and high-precision installation reference of the optical installation rack, the accuracy and stability of optical signal transmission are guaranteed, optical loss is reduced, and the collimation precision is improved; the copper heat dissipation structure of the main body shell assembly is matched with the heat dissipation fan, heat dissipation is efficient, the influence of temperature on the performance of the optical component is avoided, and long-term stability of the collimation precision is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, specifically a high-precision optical fiber collimator. Background Technology

[0002] Fiber optic collimators are key passive optical devices in fiber optic communication systems. Their function is to convert divergent light output from the fiber into parallel light, or to efficiently couple external parallel light into the fiber. In applications such as optical modules, optical sensors, and optical communication equipment, the accuracy of the collimator directly affects the quality of optical signal transmission and system performance.

[0003] Existing high-precision fiber optic collimators still have the following problems when in use: some collimators have poor heat dissipation design, and heat accumulation during operation can easily cause the performance of optical components to drift, affecting collimation accuracy; the alignment accuracy between optical components and fiber optic interfaces is limited by the installation structure, making it difficult to maintain stability over a long period of time, and optical signal loss can easily increase; the assembly structure of the outer shell and internal components is complex, making installation and maintenance inconvenient, and the protection performance is insufficient, and dust, vibration and other factors can easily interfere with the operation of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-precision fiber optic collimator. By setting up a precisely aligned fiber optic connection structure, a main body shell assembly with efficient heat dissipation, and a robust and protective optical mounting structure, it solves the problems of poor heat dissipation, easy drift in alignment accuracy, and inconvenient assembly and maintenance mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-precision fiber optic collimator, comprising a fiber optic connection assembly, an optical and heat dissipation assembly, and a main body shell assembly; the fiber optic connection assembly includes a fiber optic interface, a protective sleeve, and a connector; the optical and heat dissipation assembly includes an optical mounting bracket, optical components, a protective plate, a threaded connecting post, a heat sink, a first mounting bracket, and mounting holes; the main body shell assembly includes a copper heat dissipation shell body, heat dissipation fin grooves, a through heat dissipation groove, a cooling fan, a second mounting bracket, threaded holes, and mounting holes.

[0008] Fiber optic connection assembly: Connects to the main body housing assembly via fiber optic interface to achieve optical path docking between the fiber optic cable and the collimator; a protective sleeve wraps around the outside of the fiber optic interface, utilizing the dustproof and buffering properties of silicone material to protect the interface from dust contamination and external force damage; the connector is used to connect external fiber optic cables, ensuring the convenience and stability of fiber optic connection, and the fiber optic interface is precisely aligned with the internal optical path of the main body housing assembly to ensure low-loss transmission of optical signals.

[0009] Optical and heat dissipation components: The optical mounting bracket is made of aluminum alloy and anodized. It is installed by threaded connecting posts and threaded holes of the main body shell assembly, providing a high-precision mounting reference for the optical components. The optical components are installed on the optical mounting bracket to complete the optical signal collimation and conversion function. The protective plate is matched with the first and second mounting brackets through the assembly holes to seal and protect the optical components and block dust and foreign objects. The heat dissipation cover is a U-shaped plastic structure with air guide ribs on the inner wall to guide airflow. It is matched with the heat dissipation fin grooves and through heat dissipation grooves of the main body shell assembly to enhance the heat dissipation effect.

[0010] Main casing assembly: The copper heat sink casing body utilizes the high thermal conductivity of copper, combined with heat sink fin grooves and through heat sink grooves to increase the heat dissipation area; the cooling fan is installed on the second accessory, with an airflow of 5-10 CFM to accelerate airflow and actively dissipate heat; the mounting holes are opened at the front end of the copper heat sink casing body for the overall installation and fixation of the collimator, ensuring convenient equipment integration.

[0011] As a further improvement of this utility model, the protective sleeve is made of silicone material with a thickness of 1-2mm. It has good dustproof and buffer protection performance, can effectively resist the intrusion of external dust, alleviate the impact of external force when plugging and unplugging optical fibers, and protect the optical fiber interface and internal optical path.

[0012] As a further improvement of this utility model: the optical mounting bracket is made of aluminum alloy and is anodized, with a surface roughness Ra≤0.8μm. The aluminum alloy is lightweight, high-strength, and the anodized layer is wear-resistant and corrosion-resistant, ensuring the long-term stability of the mounting bracket. The high-precision surface facilitates the precise assembly of optical components and improves collimation accuracy.

[0013] As a further improvement of this utility model: the heat dissipation cover has a U-shaped structure, is made of plastic, and has air guide ribs on the inner wall to guide airflow. The U-shaped structure is compatible with the main shell assembly, the plastic material is lightweight, the air guide ribs optimize the heat dissipation airflow path, improve heat dissipation efficiency, and assist the heat dissipation fin grooves and cooling fan in quickly dissipating heat.

[0014] As a further improvement of this utility model: the length of the threaded connecting post is 10-15mm, and the thread specification is M3-M5, which ensures the stability of the connection, adapts to the threaded hole of the main body shell assembly, and makes the optical mounting bracket tightly connected to the copper heat dissipation shell body, avoiding positional displacement of optical components due to vibration, etc., and ensuring stable collimation accuracy.

[0015] As a further improvement of this utility model: the air volume of the cooling fan is 5-10 CFM, which can effectively accelerate the airflow around the main body shell assembly. It works in conjunction with the copper heat dissipation shell body and the heat dissipation fin groove to quickly remove the heat generated by the collimator, maintain the stable working environment temperature of the internal optical components, and prevent the optical performance from deteriorating due to temperature changes.

[0016] As a further improvement of this utility model, the number of mounting holes is 2-4, and the hole diameter is 3-5mm, which facilitates the installation and fixation of the collimator on different devices and is suitable for various installation scenarios. Through bolts and other connecting parts, the collimator can be firmly installed on carriers such as optical communication equipment and optical sensing devices, ensuring the structural stability of the integrated equipment.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the precise alignment design of the optical fiber connection component, namely the alignment of the optical fiber interface with the internal optical path, the protection of the protective sleeve, and the high-precision installation reference of the optical mounting bracket, ensures the accuracy and stability of optical signal transmission, reduces optical loss, and improves collimation accuracy. The copper heat dissipation structure of the main shell component, in conjunction with the cooling fan, provides efficient heat dissipation, avoids the influence of temperature on the performance of optical components, and further ensures the long-term stability of collimation accuracy.

[0019] 2. In this utility model, through modular component design, namely fiber optic connection, optical heat dissipation, and independent components of the main body shell, the assembly utilizes threaded connection columns, mounting holes and other structures to facilitate quick installation and subsequent maintenance; protective plates, protective sleeves and other components enhance the equipment's protective performance, reduce interference from environmental factors such as dust and vibration, and ensure the collimator operates stably under complex working conditions. At the same time, the compact and reasonable structure facilitates the miniaturization and integration of the equipment. Attached Figure Description

[0020] Figure 1 This is a perspective view of the entire utility model;

[0021] Figure 2 The optical fiber connection structure of this utility model is three-dimensional. Figure 1 ;

[0022] Figure 3 The optical fiber connection structure of this utility model is three-dimensional. Figure 2 ;

[0023] Figure 4 This is a three-dimensional view of the optical and heat dissipation structure of this utility model.

[0024] In the diagram: 1. Fiber optic connection assembly; 2. Optical and heat dissipation assembly; 3. Main body shell assembly; 11. Fiber optic interface; 12. Protective sleeve; 13. Connector; 21. Optical mounting bracket; 22. Optical component; 23. Protective plate; 24. Threaded connecting post; 25. Heat sink cover; 26. First assembly; 27. Assembly hole; 31. Copper heat dissipation shell body; 32. Heat dissipation fin groove; 33. Through heat dissipation groove; 34. Cooling fan; 35. Second assembly; 36. Threaded hole; 37. Mounting hole. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] It should be noted that the collimation principle of the optical component 22 of the fiber optic collimator (such as the refraction and collimation of light by the lens group) is existing technology and common knowledge to those skilled in the art, and will not be elaborated here.

[0029] Please see Figures 1-4 In this embodiment of the present invention, a high-precision fiber optic collimator includes a fiber optic connection assembly 1, an optical and heat dissipation assembly 2, and a main body housing assembly 3. The fiber optic connection assembly 1 includes a fiber optic interface 11, a protective sleeve 12, and a connector 13. The optical and heat dissipation assembly 2 includes an optical mounting bracket 21, optical components 22, a protective plate 23, a threaded connecting post 24, a heat dissipation cover 25, a first mounting bracket 26, and an assembly hole 27. The main body housing assembly 3 includes a copper heat dissipation housing body 31, a heat dissipation fin groove 32, a through heat dissipation groove 33, a heat dissipation fan 34, a second mounting bracket 35, a threaded hole 36, and a mounting hole 37.

[0030] The fiber optic connection assembly 1 is connected to the main body housing assembly 3 through the fiber optic interface 11, realizing the connection between the fiber optic cable and the internal optical path of the collimator; the protective sleeve 12 wraps around the outside of the fiber optic interface 11, using the dustproof and buffering properties of the silicone material to protect the interface from dust contamination and external force damage; the connector 13 is used to connect external optical fibers, ensuring the convenience and stability of the fiber optic connection, and the fiber optic interface 11 is precisely aligned with the internal optical path of the main body housing assembly 3 to ensure low-loss transmission of optical signals.

[0031] The optical mounting bracket 21 of the optical and heat dissipation assembly 2 is made of aluminum alloy and anodized. It is installed by threaded connection post 24 and threaded hole 36 of main shell assembly 3, providing a high-precision installation reference for optical component 22 with an installation accuracy of ±0.02mm. The optical component 22 is installed on the optical mounting bracket 21 to complete the optical signal collimation and conversion function. The protective plate 23 is installed by assembly hole 27 and first mounting bracket 26 and second mounting bracket 35 to seal and protect the optical component 22 and block dust and foreign objects. The heat dissipation cover 25 is a U-shaped plastic structure with air guide ribs on the inner wall to guide airflow. It is installed by heat dissipation fin groove 32 and through heat dissipation groove 33 of main shell assembly 3 to enhance the heat dissipation effect.

[0032] The copper heat dissipation shell body 31 of the main shell assembly 3 utilizes the high thermal conductivity of copper, and is combined with heat dissipation fin grooves 32, with a depth of 5-8mm and a spacing of 2-3mm, and increases the heat dissipation area with the through heat dissipation groove 33; the cooling fan 34 is installed on the second accessory 35, with an air volume of 5-10CFM to accelerate airflow and actively dissipate heat; there are 2-4 mounting holes 37 with a diameter of 3-5mm, which are opened at the front end of the copper heat dissipation shell body 31 for the overall installation and fixation of the collimator, ensuring the convenience of equipment integration.

[0033] The protective cover 12 is made of silicone material with a thickness of 1-2mm. It has good dustproof and cushioning protection performance, which can effectively resist the intrusion of external dust, reduce the impact of external force when plugging and unplugging optical fibers, and protect the optical fiber interface 11 and internal optical path.

[0034] The optical mounting bracket 21 is made of aluminum alloy and is anodized, with a surface roughness Ra≤0.8μm. The aluminum alloy is lightweight and high-strength, and the anodized layer is wear-resistant and corrosion-resistant, ensuring the long-term stability of the mounting bracket. The high-precision surface facilitates the precise assembly of optical components 22 and improves collimation accuracy.

[0035] The heat sink 25 has a U-shaped structure and is made of plastic. The inner wall has air guide ribs to guide the airflow. The U-shaped structure is compatible with the main shell component 3. The plastic material is lightweight. The air guide ribs optimize the heat dissipation airflow path, improve heat dissipation efficiency, and assist the heat dissipation fin slots 32 and the cooling fan 34 in quickly dissipating heat.

[0036] The threaded connecting post 24 is 10-15mm long and has a thread specification of M3-M5 to ensure the stability of the connection. It is compatible with the threaded hole 36 of the main body housing assembly 3, so that the optical mounting bracket 21 is tightly connected to the copper heat dissipation housing body 31, avoiding the positional displacement of the optical component 22 due to vibration, and ensuring stable collimation accuracy.

[0037] The cooling fan 34 has an airflow of 5-10 CFM (cubic feet per minute), which can effectively accelerate the airflow around the main body housing assembly 3. It works in conjunction with the copper heat dissipation housing body 31 and the heat dissipation fin groove 32 to quickly remove the heat generated by the collimator, maintain the stable operating temperature of the internal optical components 22, and prevent the optical performance from deteriorating due to temperature changes.

[0038] The number of mounting holes 37 is 2-4, and the hole diameter is 3-5mm, which facilitates the installation and fixation of the collimator on different devices and is suitable for various installation scenarios. With the help of bolts and other connectors, the collimator can be firmly installed on carriers such as optical communication equipment and optical sensing devices, ensuring the structural stability of the integrated equipment.

[0039] The working principle of this utility model is as follows: During operation, the optical fiber access connector 13 and the optical signal enter the collimator through the optical fiber interface 11. Under the action of the optical component 22, the divergent light is converted into parallel light or the parallel light is converted into coupled light. The heat generated during operation is conducted through the copper heat dissipation shell 31 to the heat dissipation fin groove 32 and the through heat dissipation groove 33. The cooling fan 34 accelerates the airflow and dissipates the heat, ensuring that the equipment operates at a suitable temperature. The protective plate 23 and the protective sleeve 12 block dust and foreign objects and reduce environmental interference. The whole is based on the optical collimation principle. The optical fiber connection component 1 realizes the input and output of optical signals. The optical and heat dissipation components 2 complete the optical signal collimation conversion and equipment heat dissipation. The main shell component 3 provides installation support, heat dissipation channel and protection function. Through the cooperation of various components, the high-precision collimated transmission of optical signals is ensured, while coping with the impact of environmental factors and maintaining the stable operation of the equipment.

[0040] 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. A high-precision fiber optic collimator, comprising a fiber optic connection assembly (1), an optical and heat dissipation assembly (2), and a main body housing assembly (3), characterized in that: The fiber optic connection assembly (1) includes a fiber optic interface (11), a protective sleeve (12), and a connector (13). The fiber optic connection assembly (1) is connected to the main body shell assembly (3) through the fiber optic interface (11). The protective sleeve (12) wraps around the outside of the fiber optic interface (11), and the connector (13) is used to connect external optical fibers. The optical and heat dissipation assembly (2) includes an optical mounting bracket (21), optical components (22), a protective plate (23), a threaded connecting post (24), a heat sink (25), a first mounting bracket (26), and a mounting hole (27). The main body shell assembly (3) includes a copper heat dissipation shell body (31), a heat dissipation fin groove (32), a through heat dissipation groove (33), a heat dissipation fan (34), a second mounting bracket (35), a threaded hole (36), and a mounting hole (37). The optical mounting bracket (21) of the optical and heat dissipation assembly (2) is installed by threaded connection post (24) and threaded hole (36) of the main body shell assembly (3). The optical component (22) is installed on the optical mounting bracket (21). The protective plate (23) is installed by assembly hole (27) and first mounting bracket (26) and second mounting bracket (35) to protect the optical component (22). The heat dissipation cover (25) is installed by heat dissipation fin groove (32) and through heat dissipation groove (33) of the main body shell assembly (3). The copper heat dissipation shell body (31) of the main body shell assembly (3) is provided with heat dissipation fin groove (32) and through heat dissipation groove (33), the heat dissipation fan (34) is installed on the second assembly (35), and the mounting hole (37) is opened at the front end of the copper heat dissipation shell body (31); The fiber optic interface (11) is precisely aligned with the optical path inside the main body shell assembly (3).

2. The high-precision fiber optic collimator according to claim 1, characterized in that: The protective cover (12) is made of silicone.

3. The high-precision fiber optic collimator according to claim 1, characterized in that: The optical mounting bracket (21) is made of aluminum alloy.

4. A high-precision fiber optic collimator according to claim 1, characterized in that: The heat sink (25) has a U-shaped structure, is made of plastic, and has air guide ribs on its inner wall.

5. A high-precision fiber optic collimator according to claim 1, characterized in that: The length of the threaded connecting post (24) is 10-15mm, and the thread specification is M3-M5.

6. A high-precision fiber optic collimator according to claim 1, characterized in that: The airflow of the cooling fan (34) is 5-10 CFM.

7. A high-precision fiber optic collimator according to claim 1, characterized in that: The number of mounting holes (37) is 2-4, and the hole diameter is 3-5mm.

Images