Dustproof structure for optical module

Abstract

This application discloses a dustproof structure for optical modules, relating to the technical field of optical modules, and aims to solve the problem of poor dustproof performance in existing dustproof structures. The dustproof structure for optical modules provided in this application includes an optical module comprising a housing and at least two fiber optic adapters. The housing has an optical interface, and each fiber optic adapter is located inside the housing and adjacent to the optical interface, and each adapter has an optical fiber interface. The dustproof structure includes at least two dust plugs, each dust plug comprising a main body, a handle portion and a plug respectively connected to both ends of the main body, the plug being used to insert into the corresponding fiber optic interface; each dust plug includes a dustproof portion protruding from the outer periphery of the main body, the dustproof portion being used to prevent contaminants from entering the optical interface. This application aims to improve the dustproof performance of the dustproof structure.

Description

Technical Field

[0001] This application relates to the field of optical module technology, specifically to a dustproof structure for optical modules. Background Technology

[0002] The function of an optical module is to convert electrical signals into optical signals at the transmitting end, transmit them through optical fiber, and then convert the optical signals back into electrical signals at the receiving end. An optical module typically includes a housing, optical and electrical interfaces located on the housing, and a fiber optic adapter. The fiber optic adapter is located near the optical interface and connects to an external optical fiber via the optical interface.

[0003] Optical modules typically house two fiber optic adapters, each with a fiber optic interface. Current technology often employs two dustproof structures, each housed within one of the two fiber optic interfaces. However, in practical use, dust from outside the optical module can easily enter the gap between the two fiber optic adapters through the gap between the two dustproof structures, and then penetrate the optical module through the fiber optic interfaces, resulting in poor dustproof performance. Utility Model Content

[0004] This application provides a dustproof structure for optical modules, which can improve the dustproof effect of the dustproof structure and effectively prevent the performance of the optical module from being reduced due to dust entering the housing through the optical interface.

[0005] To achieve the above objectives, this application provides a dustproof structure for an optical module, wherein the optical module includes a housing and at least two fiber optic adapters, the housing has an optical interface, and each fiber optic adapter is located inside the housing and adjacent to the optical interface, and each has a fiber optic interface;

[0006] The dustproof structure includes at least two dustproof plugs, each of which includes a main body, a handheld part and a plug respectively connected to both ends of the main body, and the plug is used to be inserted into the corresponding optical fiber interface;

[0007] Each of the dust plugs includes a dustproof portion protruding from the outer periphery of the main body, the dustproof portion being used to prevent contaminants from entering the optical interface.

[0008] In some embodiments of this application, when the plug of each of the dust plugs is assembled to the corresponding optical fiber interface, the dustproof portions of two adjacent dust plugs are at least partially overlapped.

[0009] In some embodiments of this application, the dustproof part includes dustproof teeth and tooth grooves arranged alternately in sequence;

[0010] When the plugs of each dust plug are assembled to the corresponding optical fiber interface, each dust tooth in one dust plug is inserted into the corresponding tooth groove in the adjacent dust plug.

[0011] In some embodiments of this application, each of the dustproof teeth has a bevel, the bevel is connected to the main body of the corresponding dustproof plug, and the bevel is inclined toward the center of the main body connected thereto in the direction from the handle to the plug.

[0012] In some embodiments of this application, the dustproof part is a dustproof protrusion protruding on the main body, and each dustproof protrusion has a first end face and a second end face that are disposed opposite to each other, with the first end face facing the plug;

[0013] When the plugs of each of the dust plugs are assembled to the corresponding optical fiber interfaces, the first end face of the dustproof protrusion on one dust plug abuts against the second end face of the dustproof protrusion on the adjacent dust plug.

[0014] In some embodiments of this application, each of the dust plugs includes a rib protruding from the outer periphery of the plug. When the plug of the dust plug is assembled to the corresponding optical fiber interface, the rib is interference-fitted with the optical fiber interface.

[0015] In some embodiments of this application, the main body of each dust plug includes a first part and a second part connected together, the first part being connected to the handheld part via the second part;

[0016] The first part protrudes from the outer wall of the plug and has two opposing arc-shaped walls, which are adapted to fit the arc-shaped inner wall of the optical interface.

[0017] The second portion protrudes from the outer wall of the first portion to form an abutment face facing the plug at the junction of the two.

[0018] In some embodiments of this application, the dustproof structure further includes a connecting structure disposed on the dustproof plug;

[0019] The connection structure is used to connect the two dust plugs.

[0020] In some embodiments of this application, the connecting structure is a flexible connector, and the two ends of the flexible connector are respectively connected to the handle portions of the two dust plugs;

[0021] or,

[0022] The connection structure includes a docking part and an adapter part. The handheld part is provided with the docking part, and the plug is provided with the adapter part. The docking part of one dust plug is connected to the adapter part of another dust plug.

[0023] In some embodiments of this application, at least one of the dust plugs is made of plastic, rubber, or silicone material.

[0024] The above-mentioned technical solution of this application has at least the following beneficial effects:

[0025] In practical applications, after inserting the two dust plugs into the corresponding fiber optic interfaces, the dust-proof parts on the two dust plugs form an additional physical barrier at the gap between the two fiber optic adapters. This physical barrier effectively blocks the passage of dust, making it difficult for dust that would otherwise pass smoothly through the gap to cross the dust-proof part and enter the optical interface, thereby improving the dustproof effect of the dustproof structure. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is one of the exploded views of the optical module in the embodiments of this application;

[0028] Figure 2 This is the second exploded view of the optical module in the embodiments of this application;

[0029] Figure 3 This is a schematic diagram of the structure of a dust plug according to an embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the structure of a dustproof part in a dustproof plug according to an embodiment of this application;

[0031] Figure 5 This is a schematic diagram of the structure of another dustproof part in a dust plug according to an embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the structure of a dust plug in an embodiment of this application from another angle;

[0033] Figure 7 This is a schematic diagram of another dust plug in the embodiments of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10-Housing; 101-Optical interface; 102-Upper housing; 103-Lower housing;

[0036] 20 - Fiber optic adapter; 201 - Fiber optic interface; 202 - Gap;

[0037] 1-Dust plug; 11-Main body; 111-First part; 1111-Curved wall surface; 112-Second part; 1121-Abutting end face; 12-Handheld part; 13-Plug; 14-Dustproof part; 141-Dustproof tooth; 141a-Beveled surface; 142-Gate groove; 143-Dustproof protrusion; 15-Rib;

[0038] 2-Connection structure; 21-Flexible connector; 22-Mating part; 23-Adaptor part;

[0039] X - First direction; Y - Second direction; Z - Third direction. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "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 application 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. Therefore, they should not be construed as limitations on this application.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] This application provides a dustproof structure for an optical module, which is described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0044] The function of an optical module is to convert electrical signals into optical signals at the transmitting end, transmit them through optical fiber, and then convert the optical signals back into electrical signals at the receiving end. At the transmitting end, the laser in the optical module converts the electrical signals into optical signals. The input electrical signal is processed by the driver circuit, which drives the laser to emit light, sending the information-carrying optical signal into the optical fiber for transmission. At the receiving end, the detector in the optical module converts the received optical signal back into an electrical signal. When the optical signal transmitted from the optical fiber shines on the detector, the detector generates a current or voltage change corresponding to the intensity of the optical signal. After subsequent amplification and processing circuitry, the original electrical signal is reconstructed.

[0045] Please refer to Figure 1 and Figure 2 The optical module includes a housing 10, and an optical interface 101 and an electrical interface disposed on the housing 10. The housing 10 contains fiber optic adapters 20 and a circuit board. One end of the circuit board is electrically connected to an external device via the electrical interface to transmit electrical signals. Each fiber optic adapter 20 is disposed adjacent to the optical interface 101 and each has a fiber optic interface 201. The fiber optic adapter 20 is connected to an external optical fiber via the fiber optic interface 201 to realize the transmission of optical signals. For example, the housing 10 includes an upper housing 102 and a lower housing 103 that overlap each other, forming the optical interface 101 when the upper housing 102 and lower housing 103 are closed together.

[0046] The optical module housing 10 typically houses two fiber optic adapters 20, each with a fiber optic interface 201. The two fiber optic adapters 20 are mounted side-by-side to the optical interface 101 of the housing 10. A gap 202 exists between the two fiber optic adapters 20. To achieve a rate reduction function, one fiber optic adapter 20 and its fiber optic interface 201 are left unblocked (not covered by the dust plug 1), while the fiber optic interface 201 of the other fiber optic adapter 20 is covered by the dust plug 1. Dust from outside the optical module can enter the optical interface 101 through the gap 202 between the two fiber optic adapters 20.

[0047] Based on this, an embodiment of this application provides a dustproof structure. For example... Figure 3As shown, the dustproof structure includes at least two dust plugs 1. Each dust plug 1 includes a main body 11, and a handle 12 and a plug 13 respectively connected to both ends of the main body 11. The plug 13 is used to insert into the corresponding optical fiber interface 201. Each dust plug 1 includes a dustproof part 14 protruding from the outer periphery of the main body 11. The dustproof part 14 is used to prevent contaminants from entering the optical interface 101.

[0048] Therefore, in practical applications, after inserting the two dust plugs 1 into the corresponding fiber optic interfaces 201, the dustproof parts 14 on the two dust plugs 1 form an additional physical barrier at the gap 202 between the two fiber optic adapters 20. This physical barrier can effectively block the passage of dust, making it difficult for dust that might otherwise pass smoothly through the gap 202 to cross the dustproof parts 14 and enter the interior of the optical interface 101, thereby improving the dustproof effect of the dustproof structure.

[0049] Combination Figures 3 to 5 When the plugs 13 of each dust plug 1 are assembled to the corresponding fiber optic interface 201, the dustproof portions 14 of two adjacent dust plugs 1 at least partially overlap. Compared to the isolated dustproof portion 14 of a single dust plug 1, this overlapping structure can more effectively block dust, and the overlapping portion can effectively reduce or even eliminate the aforementioned gap 202. Even if a small amount of dust approaches this area, due to the overlapping arrangement of the dustproof portions 14, the dust will be blocked by the overlapping portion no matter which direction it enters the aforementioned gap 202, thereby reducing the possibility of dust entering the interior of the optical interface 101 through the gap 202.

[0050] The following, combined with Figure 3 and Figure 4 The structure of a dustproof part 14 in one embodiment of this application will be described in detail below.

[0051] In this embodiment, the dustproof part 14 includes dustproof teeth 141 and insertion grooves 142 arranged alternately in sequence. When the plug 13 of each dustproof plug 1 is assembled to the corresponding optical fiber interface 201, each dustproof tooth 141 in one dustproof plug 1 is inserted into the corresponding insertion groove 142 in the adjacent dustproof plug 1. This application can effectively fill the gap between adjacent dustproof plugs 1 through the cooperation of the dustproof teeth 141 and the insertion grooves 142. Compared with simple planar contact, the staggered and nested arrangement of the dustproof teeth 141 and the insertion grooves 142 can effectively reduce the possibility of dust entering.

[0052] Furthermore, the alternating arrangement of the dustproof teeth 141 and the toothed grooves 142 provides clear guidance and positioning for the installation of the dust plug 1. During assembly, the operator can easily align the dustproof teeth 141 of one dust plug 1 with the toothed grooves 142 of the adjacent dust plug 1, making the installation process of the dust plug 1 smoother and reducing problems caused by improper installation.

[0053] Furthermore, in actual use, the optical module may be subjected to external forces from various directions. The design of the dustproof tooth 141 inserting into the tooth groove 142 can improve the stability of the connection between the two dustproof plugs 1 and reduce the possibility of the dustproof plugs 1 loosening or shifting due to external vibration, collision and other factors.

[0054] Optionally, each of the aforementioned dustproof teeth 141 is interference-fitted with its corresponding tooth groove 142, so that the dustproof teeth 141 and the tooth groove 142 fit tightly together, completely blocking the path of dust entering the optical interface 101 through the gap 202 between adjacent dustproof plugs 1, thus providing more reliable dustproof protection for the optical interface 101. The friction and compressive force generated by the interference fit between the dustproof teeth 141 and the tooth groove 142 can further improve the connection stability between the dustproof teeth 141 and the tooth groove 142.

[0055] like Figure 1 and Figure 3 As shown, the optical interface 101 on the housing 10 of the aforementioned optical module penetrates the side wall of the housing 10 along the first direction X and communicates with the receiving cavity inside the housing 10. At least two fiber optic adapters 20 are arranged side by side inside the housing 10 along the second direction Y, and are both adjacent to the optical interface 101. Dustproof teeth 141 and tooth grooves 142 are arranged alternately along the third direction Z. The first direction X, the second direction Y, and the third direction Z are all orthogonal to each other.

[0056] Therefore, when the dust plug 1 is inserted into the fiber optic interface 201 of the corresponding fiber optic adapter 20 along the first direction X, the aforementioned dustproof teeth 141 and insertion slots 142 both extend along the first direction X. In other words, the extending direction of the dustproof teeth 141 and insertion slots 142 is consistent with the installation direction of the dust plug 1, which helps to ensure that the dustproof teeth 141 in one dust plug 1 can be smoothly inserted into the insertion slots 142 in the adjacent dust plug 1.

[0057] Based on the above embodiments, each dustproof tooth 141 has a bevel 141a, which is connected to the corresponding main body 11 of the dustproof plug 1. From the handle 12 to the plug 13, the bevel 141a slopes towards the center of the main body 11 to which it is connected. In other words, the height of the dustproof tooth 141 gradually increases along the assembly direction of the dustproof plug 1. With this design, the depth of adjacent tooth grooves 142 gradually increases along the assembly direction of the dustproof plug 1, and the depth of adjacent tooth grooves 142 gradually decreases as the insertion depth of the dustproof plug 1 increases. In the initial assembly stage, the depth of the tooth grooves 142 is relatively large, thereby reducing the frictional force during the initial insertion of the dustproof plug 1 and facilitating its insertion. As the dust plug 1 continues to be inserted deeper, the groove depth of the toothed groove 142 gradually decreases, thereby pressing the dust-proof teeth 141 of the dust plug 1 adjacent to it into the corresponding toothed groove 142 to ensure that the two fit tightly together, thereby improving the dust-proof effect of the dust plug 1.

[0058] The following is for reference. Figure 5 The structure of another dustproof part 14 in the embodiments of this application will be described in detail.

[0059] In this embodiment, the dustproof part 14 is a dustproof protrusion 143 protruding from the outer periphery of the main body 11. Each dustproof protrusion 143 has a first end face and a second end face facing each other. The first end face faces the plug 13, and the second end face faces the handle 12. When the plug 13 of each dustproof plug 1 is assembled to the corresponding optical fiber interface 201, the first end face of the dustproof protrusion 143 on one dustproof plug 1 abuts against the second end face of the dustproof protrusion 143 on the adjacent dustproof plug 1, forming an effective seal between the adjacent dustproof plugs 1. Of course, there can be multiple dustproof protrusions 143, forming a dustproof tooth and tooth groove engagement in the insertion direction of the dustproof plug 1. Similar to the dustproof teeth and tooth groove in the previous embodiment, the only difference is the extension direction of the dustproof teeth or tooth groove. This tight contact can effectively reduce the gap that may exist between them, thereby preventing dust from entering the optical interface 101 from the gap, providing reliable dustproof protection for the optical module, and ensuring that the optical signal transmission is not interfered with by dust.

[0060] Based on any of the above technical solutions, combined with Figure 3 and Figure 6Each dust plug 1 includes a raised rib 15 protruding from the outer periphery of the plug 13. Specifically, the outer periphery of the plug 13 is provided with the raised rib 15, and the outer periphery of the main body 11 is provided with the dustproof part 14. When the plug 13 of the dust plug 1 is assembled to the corresponding fiber optic interface 201, the raised rib 15 is press-fitted with the inner wall of the fiber optic interface 201 to prevent the dust plug 1 from loosening or falling off with repeated use. At the same time, when the optical module is subjected to external forces generated by vibration, impact, or insertion / removal operations, the press-fit between the raised rib 15 and the inner wall of the fiber optic interface 201 can provide sufficient resistance to keep the position of the dust plug 1 stable and prevent it from accidentally loosening or falling off during use. In other words, the raised rib 15 is provided to increase the connection reliability between the dust plug 1 and the fiber optic interface 201, while the dustproof part 14 is provided to form an effective seal between adjacent dust plugs 1.

[0061] Please refer to Figure 1 and Figure 6 Each dust plug 1 has a main body 11 comprising a first part 111 and a second part 112 connected together. The first part 111 is disposed away from the handle part 12 relative to the second part 112. The first part 111 protrudes from the outer wall of the plug 13 and has two opposing arc-shaped walls 1111. The two arc-shaped walls 1111 are adapted to fit the arc-shaped inner wall of the optical interface 101, so that when the dust plug 1 is inserted into the optical fiber interface 201 through the optical interface 101, it can fit tightly against the arc-shaped inner wall of the optical interface 101, reducing the gap 202 between them, thereby preventing dust, moisture and other contaminants from entering the optical module from the gap 202 to the greatest extent, and providing reliable dust protection for the optical interface 101.

[0062] Specifically, please combine Figure 3 and Figure 6 The dustproof part 14 is disposed on the outer periphery of the first part 111. The first part 111 is provided with the dustproof part 14 on the side of the second direction Y and adjacent to the other dustproof plug 1. The dustproof part 14 includes dustproof teeth 141 and tooth grooves 142 arranged alternately along the third direction Z. Each dustproof tooth 141 and tooth groove 142 extends along the first direction X, that is, along the insertion direction of the dustproof plug 1.

[0063] Furthermore, the second portion 112 has a portion that protrudes circumferentially from the first portion 111 in the insertion direction. Thus, the second portion 112 forms an abutment face 1121 facing the plug 13 near the first portion 111. When the fiber optic adapter 20 is installed to the optical interface 101 of the housing 10, the fiber optic adapter 20 is typically recessed relative to the housing 10. After the dust plug 1 is installed, this abutment face 1121 abuts against the end face of the housing 10 with the optical interface 101, effectively creating a limiting structure between the dust plug 1 and the housing 10 to limit the relative position between the dust plug 1 and the fiber optic interface 201, ensuring the dust plug 1 has an effective insertion depth and improving its dustproof effect.

[0064] In practical applications, optical modules often employ a dual-interface configuration in the optical module protocol to support reduced data rates. Specifically, the housing 10 contains two fiber optic adapters 20. Under normal transmission rate operation, the fiber optic interfaces 201 of both adapters function simultaneously. However, in reduced-rate mode, only one adapter's fiber optic interface 201 remains functional, while the other adapter's interface 201 is deactivated. To prevent its end face from being affected by dirt, dust, or other environmental factors, a dust plug 1 is used to protect the fiber optic interface 201 of the other adapter.

[0065] Therefore, the dustproof structure of the embodiments of this application also includes a connecting structure 2. The connecting structure 2 is disposed on the dustproof plug 1 and is used to connect the two dustproof plugs 1. By connecting one dustproof plug 1 to the other dustproof plug 1 through the connecting structure 2, the risk of losing the dustproof plug 1 due to storing the two dustproof plugs 1 separately can be effectively avoided.

[0066] In some embodiments of this application, reference is made to Figure 2 The connecting structure 2 is a flexible connector 21. Both ends of the flexible connector 21 are connected to the handles 12 of the two dust plugs 1. The flexible connector 21 allows for a certain degree of freedom in relative movement and angle adjustment between the two dust plugs 1, enabling the two dust plugs 1 to be flexibly adjusted according to the actual space, facilitating the assembly of the dust plugs 1.

[0067] For example, when a fiber optic interface 201 of a fiber optic adapter 20 is protected by a dust plug 1, another dust plug 1 can be suspended from the aforementioned dust plug 1 by a flexible connector 21 to prevent it from being lost. For instance, the handle 12 has an outer end face facing away from the plug 13, and both ends of the flexible connector 21 are respectively connected to the outer end faces of the handles 12 of the two dust plugs 1.

[0068] In other embodiments of this application, please refer to Figure 7 The connection structure 2 includes a mating part 22 and an adapter part 23. The handheld part 12 is provided with the mating part 22, and the plug 13 is provided with the adapter part 23. The mating part 22 of one dust plug 1 is connected to the adapter part 23 of the other dust plug 1, so that the two dust plugs 1 can form a mechanical locking effect, ensuring that the two dust plugs 1 maintain the correct relative position after connection and will not shift or shake.

[0069] For example, the aforementioned mating portion 22 is a mating protrusion, and the adapter portion 23 is an adapter hole, both extending along the first direction X. Alternatively, to increase the connection stability of the two dust plugs 1, external threads can be designed on the outer periphery of the mating protrusion, and internal threads can be provided on the hole wall of the adapter hole.

[0070] In some embodiments of this application, at least one dust plug 1 is made of plastic, rubber, or silicone material to ensure that the dust plug 1 has good elasticity. When the dust plug 1 is installed on the fiber optic interface 201 of the fiber optic adapter 20, it can fill the tiny gap between itself and the fiber optic interface 201 and the optical interface 101 through its own elastic deformation. This further enhances the dustproof effect of the dust plug 1.

[0071] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0072] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims. Furthermore, specific examples have been used in the specification to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application, and the content of this specification should not be construed as a limitation of this application.

Claims

1. A dustproof structure for optical modules, characterized in that, The optical module includes a housing and at least two fiber optic adapters. The housing has an optical interface, and each fiber optic adapter is located inside the housing and adjacent to the optical interface, and each has a fiber optic interface. The dustproof structure includes at least two dustproof plugs, each of which includes a main body, a handheld part and a plug respectively connected to both ends of the main body, and the plug is used to be inserted into the corresponding optical fiber interface; Each of the dust plugs includes a dustproof portion protruding from the outer periphery of the main body, the dustproof portion being used to prevent contaminants from entering the optical interface.

2. The dustproof structure for optical modules according to claim 1, characterized in that, When the plug of each of the dust plugs is assembled to the corresponding optical fiber interface, the dustproof parts of two adjacent dust plugs are at least partially overlapped.

3. The dustproof structure for optical modules according to claim 2, characterized in that, The dustproof part includes dustproof teeth and tooth grooves arranged alternately in sequence; When the plugs of each dust plug are assembled to the corresponding optical fiber interface, each dust tooth in one dust plug is inserted into the corresponding tooth groove in the adjacent dust plug.

4. The dustproof structure for optical modules according to claim 3, characterized in that, Each of the dustproof teeth has a bevel, which is connected to the main body of the corresponding dustproof plug. In the direction from the handle to the plug, the bevel is inclined toward the center of the main body connected to it.

5. The dustproof structure for an optical module according to claim 2, characterized in that, The dustproof part is a dustproof protrusion protruding from the outer periphery of the main body. Each dustproof protrusion has a first end face and a second end face that are opposite to each other, with the first end face facing the plug. When the plugs of each of the dust plugs are assembled to the corresponding optical fiber interfaces, the first end face of the dustproof protrusion on one dust plug abuts against the second end face of the dustproof protrusion on the adjacent dust plug.

6. The dustproof structure for an optical module according to claim 1, characterized in that, Each of the dust plugs includes a raised rib protruding from the outer periphery of the plug. When the plug of the dust plug is assembled to the corresponding optical fiber interface, the raised rib is interference-fitted with the optical fiber interface.

7. The dustproof structure for an optical module according to claim 1, characterized in that, The main body of each of the dust plugs includes a first part and a second part connected together, the first part being connected to the handle part via the second part; The first part protrudes from the outer wall of the plug and has two opposing arc-shaped walls, which are adapted to fit the arc-shaped inner wall of the optical interface. The second portion protrudes from the outer wall of the first portion to form an abutment face facing the plug at the junction of the two.

8. The dustproof structure for an optical module according to claim 1, characterized in that, The dustproof structure also includes a connecting structure, which is disposed on the dustproof plug; The connection structure is used to connect the two dust plugs.

9. The dustproof structure for an optical module according to claim 8, characterized in that, The connection structure is a flexible connector, and the two ends of the flexible connector are respectively connected to the handles of the two dust plugs; or, The connection structure includes a docking part and an adapter part. The handheld part is provided with the docking part, and the plug is provided with the adapter part. The docking part of one dust plug is connected to the adapter part of another dust plug.

10. The dustproof structure for an optical module according to claim 1, characterized in that, At least one of the dust plugs is made of plastic, rubber or silicone material.

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