Optical module with strong anti-interference performance

Abstract

The utility model relates to an optical module with strong anti-interference performance, which comprises an optical module body, a shell of the optical module body is divided into an outer shell and a top cover, the outer shell is concave, the two side walls of the outer shell are provided with placing grooves from the top to the bottom, the inner bottom wall of each placing groove is fixedly provided with a first sealing gasket, and the outer side surface of each side wall is provided with a groove; sealing plates used for being inserted into the containing grooves are fixedly installed on the lower surface of the top cover, side plates matched with the grooves are fixedly installed on the lower surface of the top cover and located on the outer sides of the two sealing plates, and a plurality of threaded holes and threaded grooves are formed in the side plates and the grooves in a matched mode respectively. The beneficial effects of the utility model are that the two side walls of the housing are provided with the placing grooves and the first sealing gaskets are installed, and the lower surface of the top cover is provided with the sealing plates matched with the placing grooves, so that a double-layer sealing structure is formed, and when gaps exist between the housing and the side plates, the sealing plates can achieve a good sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of communication equipment, in particular to an optical module with strong anti-interference performance. Background Art

[0002] At present, most optical module manufacturers usually use two clips to fasten the top cover and the shell when producing optical modules, and only use a single-layer shell for sealing. When the staff needs to inspect the inside of the optical module, they usually need to open the top cover to check its interior. When the optical module is disassembled and reinstalled, the joints of the upper and lower fastening parts may have gaps due to wear, looseness or improper operation of the clips. Although the single-layer shell design simplifies the production process and reduces costs, its electromagnetic shielding performance is easily affected when facing the gap problem, so that the gap will destroy the original electromagnetic shielding structure, resulting in a decline in electromagnetic shielding performance, and then cause interference inside the optical module or the signal, affecting communication quality. Utility Model Content

[0003] The purpose of the utility model is to provide an optical module with strong anti-interference performance to solve the above-mentioned problems existing in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] An optical module with strong anti-interference performance includes an optical module body, the shell of the optical module body is divided into an outer shell and a top cover, the outer shell is concave and has placement grooves on both side walls from the top downward, a first sealing gasket is fixedly installed on the inner bottom wall of the placement groove, and a groove is opened on the outer side of the side wall; a sealing plate for inserting into the placement groove is fixedly installed on the lower surface of the top cover, and a side plate adapted to the groove is fixedly installed on the lower surface of the top cover and located on the outside of the two sealing plates, the side plates are respectively matched with the groove and have a plurality of threaded holes and threaded grooves, and the side plates are detachably installed in the groove by bolts that penetrate the threaded holes and are threadedly connected to the threaded grooves.

[0006] The beneficial effects of the present invention are as follows: by providing placement grooves on the two side walls of the housing and installing a first sealing gasket, and by installing a sealing plate that matches the placement groove on the lower surface of the top cover, a double-layer sealing structure is formed. When a gap appears between the housing and the side panels, the sealing plate can provide a good sealing effect. The side panels and the housing are fixed by a threaded connection. Compared with the traditional snap-on design, this connection method is more resistant to gaps caused by wear, looseness or improper operation, reducing gaps and the possibility of electromagnetic radiation leakage, thereby enhancing electromagnetic shielding performance. During the disassembly and reinstallation process, even if slight wear or looseness occurs, the original sealing and shielding effect can be restored by adjusting the bolts, avoiding the degradation of electromagnetic shielding performance caused by gaps.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, second sealing pads are fixedly installed on the inner walls of both sides of the placement groove.

[0009] Furthermore, the surface of the sealing plate is coated with conductive silicone.

[0010] Furthermore, a fixing plate is fixedly installed on the inner side surfaces of the two side walls, and a positioning hole is opened on the top of the fixing plate; a fixing rod adapted to the positioning hole is fixedly installed on the lower surface of the top cover.

[0011] Furthermore, a plurality of positioning posts are fixedly mounted on the inner bottom wall of the housing, and the circuit board of the optical module body is detachably mounted inside the housing via the plurality of positioning posts.

[0012] Furthermore, a heat-conducting and wave-absorbing patch is fixedly mounted on the inner bottom wall of the housing, and the heat-conducting and wave-absorbing patch is in contact with the lower surface of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the explosion of the outer shell and the top cover of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model Figure 1 ;

[0015] Figure 3 This is a schematic diagram of the internal structure of the shell of the utility model Figure 2 ;

[0016] Figure 4 This is a front cross-sectional view of the optical module body of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Optical module body; 101. Housing; 102. Top cover; 103. Circuit board; 2. Placement slot; 3. First sealing gasket; 4. Groove; 5. Sealing plate; 6. Side panel; 7. Threaded hole; 8. Threaded groove; 9. Second sealing gasket; 10. Fixing plate; 11. Positioning hole; 12. Fixing rod; 13. Positioning column; 14. Thermal conductive and wave absorbing patch. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] like Figures 1 to 4 As shown, embodiment 1 of the present invention is an optical module with strong anti-interference performance, including an optical module body 1, the shell of the optical module body 1 is divided into an outer shell 101 and a top cover 102, the outer shell 101 is concave and the two side walls are provided with a placement groove 2 from the top to the bottom, a first sealing gasket 3 is fixedly installed on the inner bottom wall of the placement groove 2, and a groove 4 is provided on the outer side of the side wall; a sealing plate 5 for inserting into the placement groove 2 is fixedly installed on the lower surface of the top cover 102, and a side plate 6 adapted to the groove 4 is fixedly installed on the lower surface of the top cover 102 and located on the outside of the two sealing plates 5, and the side plate 6 and the groove 4 are respectively provided with a plurality of threaded holes 7 and threaded grooves 8, and the side plate 6 is detachably installed in the groove 4 by a bolt that passes through the threaded hole 7 and is threadedly connected to the threaded groove 8.

[0021] By providing placement grooves 2 and installing first sealing gaskets 3 on both side walls of the housing 101, and installing a sealing plate 5 that matches the placement grooves 2 on the lower surface of the top cover 102, a double-layer sealing structure is formed. When a gap appears between the housing 101 and the side panels 6, the sealing plate 5 can provide an effective seal. A threaded connection is used to secure the side panels 6 and the housing 101. Compared to traditional snap-on designs, this connection method is more resistant to gaps caused by wear, looseness, or improper operation, reducing gaps and the possibility of electromagnetic radiation leakage, thereby enhancing electromagnetic shielding performance. During disassembly and reinstallation, even if slight wear or looseness occurs, the original sealing and shielding effects can be restored by adjusting the bolts, avoiding the degradation of electromagnetic shielding performance caused by gaps.

[0022] Example 2 of the present invention is an optical module with strong anti-interference performance. Based on Example 1, second sealing pads 9 are fixedly installed on the inner walls of both sides of the placement groove 2.

[0023] In addition to the original first sealing gasket 3, the second sealing gasket 9 is added as an additional barrier to more effectively prevent external dust, moisture, etc. from entering the interior of the optical module body 1. This double sealing design significantly improves the overall sealing performance, ensuring a clean and dry environment within the optical module body 1. Even if the first sealing gasket 3 wears or ages due to long-term use or external factors, the second sealing gasket 9 can compensate for this defect to a certain extent, reducing the risk of leakage caused by poor sealing.

[0024] Embodiment 3 of the present invention is an optical module with strong anti-interference performance. Based on embodiment 1 or 2, the surface of the sealing plate 5 is coated with conductive silicone.

[0025] When conductive silicone is applied to the surface of the sealing plate 5, it effectively shields external electromagnetic interference, protecting sensitive electronic components within the optical module body 1 from interference and ensuring stable signal transmission. The conductive silicone's conductivity also reduces the leakage of electromagnetic radiation from within the optical module body 1, reducing interference with other electronic devices and improving overall electromagnetic compatibility. Furthermore, the conductive silicone's conductivity enhances the electrical conductivity between the sealing plate 5 and the body.

[0026] Example 4 of the present invention is an optical module with strong anti-interference performance. Based on any one of Examples 1 to 3, a fixing plate 10 is fixedly installed on the inner side of each of the two side walls, and a positioning hole 11 is opened on the top of the fixing plate 10; a fixing rod 12 adapted to the positioning hole 11 is fixedly installed on the lower surface of the top cover 102.

[0027] The precise fit between the fixing rod 12 and the positioning hole 11 enables the top cover 102 to be accurately connected to the housing 101 during installation, thus avoiding installation difficulties or structural looseness caused by position deviation.

[0028] Example 5 of the present utility model is an optical module with strong anti-interference performance. On the basis of any one of Examples 1 to 4, a plurality of positioning posts 13 are fixedly installed on the inner bottom wall of the shell 101, and the circuit board 103 of the optical module body 1 is detachably installed inside the shell 101 through the plurality of positioning posts 13.

[0029] The positioning posts 13 serve as reference points for the installation of the circuit board 103, ensuring accurate alignment of the circuit board 103 during installation. This helps reduce performance issues or failures caused by inaccurate installation positions and improves overall product reliability and stability.

[0030] Example 6 of the present invention is an optical module with strong anti-interference performance. Based on Example 5, a heat-conducting and wave-absorbing patch 14 is fixedly installed on the inner bottom wall of the shell 101, and the heat-conducting and wave-absorbing patch 14 contacts the lower surface of the circuit board 103.

[0031] The thermally conductive absorbing patch 14 has high thermal conductivity, ensuring that heat from the circuit board 103 is evenly distributed to the housing 101, preventing local overheating. This helps extend the service life of the circuit board 103 and improve the reliability of the device. Furthermore, the thermally conductive absorbing patch 14 can absorb electromagnetic waves in space, suppressing the radiated electromagnetic interference generated by the module to the outside world. The thermally conductive absorbing patch 14 has a high surface resistivity, similar to that of an insulator, and can be directly attached to the surface of the circuit board 103 and components. The thermally conductive absorbing patch 14 is flexible and can be tailored to fit tightly in the desired location or fill gaps, effectively blocking radiated electromagnetic radiation.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An optical module with strong anti-interference performance, characterized in that: The optical module comprises an optical module body (1), wherein the shell of the optical module body (1) is divided into an outer shell (101) and a top cover (102), wherein the outer shell (101) is concave and has two side walls with placement grooves (2) extending downward from the top, a first sealing gasket (3) is fixedly installed on the inner bottom wall of the placement groove (2), and a groove (4) is provided on the outer side of the side wall; a sealing plate (5) for inserting into the placement groove (2) is fixedly installed on the lower surface of the top cover (102), and a side plate (6) adapted to the groove (4) is fixedly installed on the lower surface of the top cover (102) and located outside the two sealing plates (5); a plurality of threaded holes (7) and threaded grooves (8) are respectively provided on the side plate (6) and the groove (4), and the side plate (6) is detachably installed in the groove (4) by means of bolts that penetrate the threaded holes (7) and are threadedly connected to the threaded grooves (8).

2. The optical module with strong anti-interference performance according to claim 1, characterized in that: Second sealing pads (9) are fixedly mounted on both inner walls of the placement groove (2).

3. The optical module with strong anti-interference performance according to claim 1, characterized in that: The surface of the sealing plate (5) is coated with conductive silica gel.

4. The optical module with strong anti-interference performance according to claim 1, characterized in that: A fixing plate (10) is fixedly mounted on the inner side surfaces of the two side walls, and a positioning hole (11) is provided on the top of the fixing plate (10); a fixing rod (12) adapted to the positioning hole (11) is fixedly mounted on the lower surface of the top cover (102).

5. The optical module with strong anti-interference performance according to claim 1, characterized in that: A plurality of positioning posts (13) are fixedly mounted on the inner bottom wall of the housing (101), and the circuit board (103) of the optical module body (1) is detachably mounted inside the housing (101) via the plurality of positioning posts (13).

6. The optical module with strong anti-interference performance according to claim 5, characterized in that: A heat-conducting and wave-absorbing patch (14) is fixedly mounted on the inner bottom wall of the housing (101), and the heat-conducting and wave-absorbing patch (14) is in contact with the lower surface of the circuit board (103).

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