Optical module structure with anti-interference function

Abstract

The utility model discloses a kind of optical module structures with anti-interference function, it is related to optical module technical field.The utility model includes base, PCB board and shielding shell, first locking assembly is equipped in base interior, first locking assembly includes first installation slot, spring is connected in first installation slot interior, first spring top end is connected with first clamping block, base one side outer surface and back are equipped with second locking assembly, second locking assembly includes second installation slot, movable rack is connected in second installation slot, first magnet and second magnet are respectively embedded in movable rack inner portion, shielding shell top one side is equipped with first groove, shielding shell one side outer surface and back are equipped with second groove, and second groove interior is connected with second clamping block.The utility model is equipped with first locking assembly and second locking assembly, and the double locking mechanism of magnetic attraction and mechanical clamping is combined, the quick locking and unlocking of shielding shell is realized, disassembly and installation can be completed without using tool, and the maintenance efficiency of optical module is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of optical module technology, specifically to an optical module structure with anti-interference function. Background Technology

[0002] Optical modules are key components in modern communication technology, used for photoelectric conversion, and are widely used in data centers, telecommunications networks, industrial automation, and other fields. With the continuous improvement of communication speeds and system integration, optical modules are becoming increasingly sensitive to external electromagnetic interference. Their anti-interference performance directly affects the stability and reliability of signal transmission. Therefore, in optical module design, an anti-interference shell is an essential protective structure used to shield against electromagnetic interference and physical damage.

[0003] In existing technologies, anti-interference shells are usually encapsulated using snap-fit ​​structures or screw fixing methods. While snap-fit ​​structures are easy to install, they are prone to loosening or breaking due to material fatigue after repeated disassembly, reducing the shielding effect. Although screw fixing provides a secure connection, it requires the use of specific tools (such as screwdrivers) to open the shell, which makes it inconvenient for the daily maintenance, troubleshooting, and component replacement of optical modules. Especially in on-site maintenance or emergency repair scenarios, the preparation and operation of tools are time-consuming and labor-intensive, seriously affecting maintenance efficiency. Summary of the Invention

[0004] Therefore, the purpose of this utility model is to provide an optical module structure with anti-interference function to solve the technical problems in the background art mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an optical module structure with anti-interference function, including a base, a PCB board, and a shielding shell. The base has a first locking component inside, which includes a first mounting groove. A spring is connected inside the first mounting groove, and a first locking block is connected to the top of the spring. The outer surface of one side and the back of the base have a second locking component, which includes a second mounting groove. A movable frame is connected inside the second mounting groove, and a first magnet and a second magnet are respectively embedded inside the movable frame. The top side of the shielding shell has a first groove, and the outer surface of one side and the back of the shielding shell have a second groove, and a second locking block is connected inside the second groove.

[0006] Furthermore, both the first magnet and the second magnet are neodymium iron boron permanent magnets, and the first magnet and the second magnet have different magnetic properties.

[0007] By adopting the above technical solution, the magnet is selected as N35 grade neodymium iron boron permanent magnet, which has high magnetic energy product, stable and long-lasting magnetic force, and can ensure sufficient adsorption force during unlocking and repulsion force during installation, avoiding card reset failure due to insufficient magnetic force. At the same time, the opposite orientation provides a magnetic basis for subsequent "adsorption-repulsion" switching.

[0008] Furthermore, a third magnet is installed inside the second card block, and the third magnet has the same magnetic properties as the second magnet.

[0009] By adopting the above technical solution and utilizing the principle of "opposites attract, likes repel", the first magnet attracts the third magnet during unlocking, causing the second card block to detach from the second groove for unlocking. During installation, the second magnet repels the third magnet, pushing the second card block into the second groove for fixing. Automatic switching of the second card block can be achieved without additional external force, improving the convenience of operation.

[0010] Furthermore, the base is provided with a sliding groove on its exterior, and the movable frame is slidably connected to the base through the sliding groove.

[0011] By adopting the above technical solution, the slide structure provides precise movement trajectory guidance for the movable frame, restricts its degree of freedom in unexpected directions, and ensures that the movable frame can only slide smoothly along the preset path when under force. This not only makes the unlocking and locking actions smoother and prevents jamming caused by the movable frame offset or tilt, but also improves the consistency and repeatability of the feel of the entire operation process.

[0012] Furthermore, the first locking block engages with the first groove, and the second locking block engages with the second groove.

[0013] By adopting the above technical solution, the double snap-fit ​​structure can improve the connection stability between the shielding shell and the base, avoid the loosening caused by vibration or collision due to a single snap-fit, and at the same time ensure that there is no gap after the shielding shell is closed, thus guaranteeing the electromagnetic shielding effect.

[0014] Furthermore, a movable plate is connected to one side of the movable frame, and the movable plate is in contact with the first locking block.

[0015] By adopting the above technical solution, the movable plate and the movable frame are linked, and the linkage effect of two locking components (the first and second locking components) can be simultaneously controlled by a single operation (pushing the movable frame). When the movable frame moves, the movable plate moves accordingly and applies pressure to the first locking block, causing it to disengage from the first groove. Thus, the main and auxiliary locking points are unlocked simultaneously with one action, which greatly simplifies the operation process and improves maintenance efficiency.

[0016] Furthermore, the movable frame and the movable plate are detachably connected, and the movable frame is made of elastic plastic.

[0017] By adopting the above technical solution, the movable frame and the movable plate adopt a split and detachable connection design. When the movable plate is worn due to frequent compression, the movable plate can be replaced without scrapping the entire linkage component, which significantly reduces maintenance costs. Both are made of elastic plastic, which achieves lightweight while ensuring structural strength and toughness. Furthermore, its inherent micro-deformation characteristics help to form a self-tightening fit in the tenon and mortise connection, preventing loosening during use.

[0018] Furthermore, the bottom side of the movable plate is inclined, and the top side of the first card block is inclined.

[0019] By adopting the above technical solution, the inclined surfaces of the bottom of the movable plate and the top of the first locking block form an inclined surface mechanism. When the movable plate moves horizontally, its inclined surface interacts with the inclined surface of the first locking block, efficiently converting the horizontal thrust into vertical downward pressure, thereby smoothly pressing the first locking block into the mounting groove with a smaller operating force to complete the unlocking. This design reduces frictional resistance during operation, making the operation lighter and smoother.

[0020] Furthermore, both the first and second card blocks are made of elastic plastic.

[0021] By adopting the above technical solution, elastic plastics (such as polyamide 66 (PA66)) have good toughness, wear resistance and deformation recovery ability; this allows the first and second locking blocks to maintain their original geometry and locking force after repeated locking and popping actions, ensuring the long-term reliability and durability of the locking mechanism.

[0022] Furthermore, the inner surface of the shielding shell is plated with a copper-nickel alloy shielding layer.

[0023] By adopting the above technical solution, a copper-nickel alloy layer is plated on the inner surface of the shielding shell. The high conductivity of copper and the magnetic permeability of nickel are used to form a continuous and dense electromagnetic shielding layer. This shielding layer can effectively absorb and reflect internal and external electromagnetic interference, significantly improve the electromagnetic compatibility of the optical module in complex high-frequency circuit environments, ensure the integrity and stability of signal transmission, and at the same time, the plating layer also has a certain anti-corrosion effect.

[0024] In summary, the present invention has the following main advantages: 1. This utility model, by setting a first locking component and a second locking component, combined with a dual locking mechanism of magnetic attraction and mechanical snap-fit, achieves rapid locking and unlocking of the shielding shell, and can complete disassembly and installation without the use of tools, significantly improving the maintenance efficiency of the optical module; 2. This utility model achieves automatic return and locking of the locking block through the adsorption and repulsion between magnets and the spring reset structure, ensuring that the shielding shell is firmly connected in the closed state, effectively resisting external vibration and electromagnetic interference, and improving the working reliability and service life of the optical module. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the movable frame structure of this utility model; Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the slide groove structure of this utility model; Figure 5 This is a schematic diagram of the movable plate structure of this utility model; Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point B.

[0026] In the diagram: 1. Base; 2. PCB board; 3. Shielding shell; 4. First locking assembly; 401. First mounting slot; 402. Spring; 403. First locking block; 404. First groove; 405. Movable plate; 5. Second locking assembly; 501. Second mounting slot; 502. Movable frame; 503. First magnet; 504. Second magnet; 505. Second locking block; 506. Third magnet; 507. Second groove; 6. Slide. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The embodiments of this utility model will be described below based on its overall structure.

[0029] Example 1: An optical module structure with anti-interference function, such as... Figures 1-6As shown, the device includes a base 1, a PCB board 2, and a shielding shell 3. The base 1 has a first locking assembly 4 inside, which includes a first mounting groove 401. A spring 402 is connected inside the first mounting groove 401, and a first locking block 403 is connected to the top of the spring 402. A second locking assembly 5 is provided on one outer surface and the back of the base 1. The second locking assembly 5 includes a second mounting groove 501, which has a movable frame 502 connected inside. A first magnet 503 and a second magnet 504 are respectively embedded inside the movable frame 502. The shielding shell 3 is topped... A first groove 404 is provided on one side of the shielding shell 3, and a second groove 507 is provided on the outer surface and back of one side of the shielding shell 3. A second card block 505 is connected inside the second groove 507. The first magnet 503 and the second magnet 504 are both neodymium iron boron permanent magnets. The first magnet 503 and the second magnet 504 have opposite magnetic properties. The magnets are N35 grade neodymium iron boron permanent magnets, which have high magnetic energy product and stable and durable magnetic force. This ensures that the adsorption force during unlocking and the repulsion force during installation are sufficient, avoiding the failure of the card block to reset due to insufficient magnetic force. At the same time, the opposite orientation provides a magnetic basis for the subsequent "adsorption-repulsion" switching.

[0030] See Figure 5 and Figure 6 In the above embodiment, a third magnet 506 is installed inside the second card block 505, and the magnetism of the third magnet 506 is the same as that of the second magnet 504. Utilizing the principle of "opposites attract, likes repel", when unlocking, the first magnet 503 attracts the third magnet 506, causing the second card block 505 to disengage from the second groove 507 to unlock. When installing, the second magnet 504 repels the third magnet 506, pushing the second card block 505 into the second groove 507 for fixation. Automatic switching of the second card block 505 can be achieved without additional external force, improving the convenience of operation.

[0031] See Figure 2 and Figure 4 In the above embodiment, the base 1 is provided with a sliding groove 6 on the outside, and the movable frame 502 is slidably connected to the base 1 through the sliding groove 6. The structure of the sliding groove 6 provides precise movement trajectory guidance for the movable frame 502, restricts its degree of freedom in unexpected directions, and ensures that the movable frame 502 can only slide smoothly along the preset path when subjected to force. This not only makes the unlocking and locking actions smoother and prevents jamming caused by the offset or tilt of the movable frame 502, but also improves the consistency and repeatability of the feel of the entire operation process.

[0032] See Figure 1 In the above embodiment, the first locking block 403 is engaged with the first groove 404, and the second locking block 505 is engaged with the second groove 507. The double locking structure can improve the connection stability between the shielding shell 3 and the base 1, avoid loosening due to vibration or collision caused by a single locking, and at the same time ensure that there is no gap after the shielding shell 3 is closed, thus ensuring the electromagnetic shielding effect.

[0033] See Figure 2 and Figure 5 In the above embodiment, a movable plate 405 is connected to one side of the movable frame 502, and the movable plate 405 is in contact with the first locking block 403. The movable plate 405 is linked with the movable frame 502, so that a single operation (pushing the movable frame 502) can simultaneously control the linkage effect of the two locking components (the first and second locking components). When the movable frame 502 moves, the movable plate 405 moves accordingly and applies pressure to the first locking block 403, causing it to disengage from the first groove 404. Thus, the simultaneous unlocking of the main and auxiliary locking points is completed with one action, which greatly simplifies the operation process and improves maintenance efficiency.

[0034] See Figure 5 In the above embodiments, the movable frame 502 and the movable plate 405 are detachably connected, and both movable frames 502 are made of elastic plastic. The movable frame 502 and the movable plate 405 adopt a split and detachable connection design. When the movable plate 405 is worn due to frequent compression, the movable plate 405 can be replaced without scrapping the entire linkage component, which significantly reduces maintenance costs. Both are made of elastic plastic, which achieves lightweight while ensuring structural strength and toughness. Moreover, its inherent micro-deformation characteristics help to form a self-tightening fit in the tenon and mortise connection, preventing loosening during use.

[0035] See Figure 3 and Figure 5 In the above embodiment, the bottom side of the movable plate 405 is inclined, and the top side of the first locking block 403 is inclined. The inclined surfaces of the bottom of the movable plate 405 and the top of the first locking block 403 form a ramp mechanism. When the movable plate 405 moves horizontally, its inclined surface interacts with the inclined surface of the first locking block 403, efficiently converting the horizontal thrust into a vertically downward pressure, thereby smoothly pressing the first locking block 403 into the mounting groove with a smaller operating force to complete the unlocking. This design reduces frictional resistance during operation, making the operation lighter and smoother.

[0036] See Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In the above embodiments, the first locking block 403 and the second locking block 505 are both made of elastic plastic. Elastic plastic (such as polyamide 66 (PA66)) has good toughness, wear resistance and deformation recovery ability. This allows the first locking block 403 and the second locking block 505 to maintain their original geometry and locking force after repeated locking and popping actions, ensuring the long-term reliability and durability of the locking mechanism.

[0037] Example 2: To further improve the anti-interference effect of the optical module, Example 2 is an improvement on Example 1. (See attached document for details.) Figure 1 and Figure 2 The inner surface of the shielding shell 3 is plated with a copper-nickel alloy shielding layer. The copper-nickel alloy layer is plated on the inner surface of the shielding shell 3. By utilizing the high conductivity of copper and the magnetic permeability of nickel, a continuous and dense electromagnetic shielding body is formed. This shielding layer can effectively absorb and reflect internal and external electromagnetic interference, significantly improve the electromagnetic compatibility of the optical module in complex high-frequency circuit environments, and ensure the integrity and stability of signal transmission. At the same time, the coating also has a certain anti-corrosion effect.

[0038] The implementation principle of this utility model is as follows: When opening, the operator moves the movable frame 502 towards the tail end of the base 1, causing the first magnet 503 to move to the position corresponding to the second locking block 505. At this time, under the magnetic attraction, the third magnet 506 and the first magnet 503 are attracted by opposite poles, causing the second locking block 505 to move towards the first magnet 503, thus disengaging the second locking block 505 from the second groove 507. Simultaneously, driven by the movable frame 502, the movable plate 405 moves and squeezes the first locking block 403, pressing it into the first mounting groove 401, thus disengaging the first locking block 403 from the first groove 404, thereby unlocking the shielding shell 3. During installation, the movable frame 502 is first inserted into the second mounting groove 501, causing the first magnet 503 to move towards the second locking block 505. The second locking block 505 is placed flush with the first magnet 503 and then the movable plate 405 is inserted into the tenon groove on the mounting bracket. The movable plate 405 is then pressed down, causing the first locking block 403 to compress the spring 402 and enter the first mounting groove 401. At this time, the shielding shell 3 is inserted from the bottom side until it is in place. Then, the movable bracket 502 is pushed to the insertion end of the base 1, so that the movable bracket 502 and the movable plate 405 return to their original positions. Under the elastic force of the spring 402, the first locking block 403 is locked into the first groove 404, and the second locking block 505 is locked into the second groove 507 (at this time, the third magnet 506 and the second magnet 504 have the same magnetism and generate a repulsive force, which helps the second locking block 505 to reset and lock). The fixing of the shielding shell 3 is completed.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An optical module structure with anti-interference function, comprising a base (1), a PCB board (2), and a shielding shell (3), characterized in that: The base (1) is provided with a first locking component (4), which includes a first mounting groove (401). A spring (402) is connected inside the first mounting groove (401). A first locking block (403) is connected to the top of the spring (402). A second locking component (5) is provided on one side of the outer surface and the back of the base (1). The second locking component (5) includes a second mounting groove (501). A movable frame (502) is connected inside the second mounting groove (501). A first magnet (503) and a second magnet (504) are installed inside the movable frame (502). A first groove (404) is provided on one side of the top of the shielding shell (3). A second groove (507) is provided on one side of the outer surface and the back of the shielding shell (3). A second locking block (505) is connected inside the second groove (507).

2. The optical module structure with anti-interference function according to claim 1, characterized in that: The first magnet (503) and the second magnet (504) are both neodymium iron boron permanent magnets, and the first magnet (503) and the second magnet (504) have different magnetic properties.

3. The optical module structure with anti-interference function according to claim 1, characterized in that: The second card block (505) has a third magnet (506) installed inside, and the third magnet (506) has the same magnetism as the second magnet (504).

4. The optical module structure with anti-interference function according to claim 1, characterized in that: The base (1) is provided with a sliding groove (6) on the outside, and the movable frame (502) is slidably connected to the base (1) through the sliding groove (6).

5. The optical module structure with anti-interference function according to claim 1, characterized in that: The first locking block (403) engages with the first groove (404), and the second locking block (505) engages with the second groove (507).

6. The optical module structure with anti-interference function according to claim 1, characterized in that: The movable frame (502) is connected to a movable plate (405) on one side, and the movable plate (405) is in contact with the first locking block (403).

7. The optical module structure with anti-interference function according to claim 6, characterized in that: The movable frame (502) and the movable plate (405) are detachably connected, and the movable frame (502) is made of elastic plastic.

8. The optical module structure with anti-interference function according to claim 6, characterized in that: The bottom side of the movable plate (405) is inclined, and the top side of the first card block (403) is inclined.

9. The optical module structure with anti-interference function according to claim 1, characterized in that: Both the first card block (403) and the second card block (505) are made of elastic plastic.

10. The optical module structure with anti-interference function according to claim 1, characterized in that: The inner surface of the shielding shell (3) is plated with a copper-nickel alloy shielding layer.

Images