Double-SC-interface optical module, optical line terminal equipment and optical communication system

Abstract

The invention provides a double-SC-interface optical module, optical line terminal equipment and an optical communication system. According to the interface part of the optical module, a rectangular installation interval defined by the four retaining walls is divided into two interfaces through a partition plate, so that one optical module can receive two paths of light rays. When the optical module is applied to the optical line terminal equipment, the number of interfaces of the optical line terminal equipment can be doubled on the basis that the number of the optical modules of the optical line terminal equipment is not increased, so that the capacity expansion and upgrading of the optical line terminal equipment are realized under the condition that the layout space of the optical line terminal equipment is not changed; and therefore, capacity expansion and upgrading of the optical communication system can be realized, and demands of clients on network transmission rate and capacity can be met.

Description

Technical Field

[0001] The present application relates to the field of optical communication technology, and in particular to a dual SC interface optical module, an optical line terminal device, and an optical communication system. Background Art

[0002] The optical line terminal equipment includes a single board and multiple optical modules arranged on the single board. An optical module usually has only one interface for plugging in a communication cable, so as to realize the reception of one line of light. At present, customers' demands for network transmission rate and capacity are gradually increasing. In order to realize the expansion of optical line terminal equipment, it is necessary to set more optical modules on the optical line terminal equipment to provide more interfaces.

[0003] However, since the optical line terminal equipment in the access network field is usually deployed in the client's computer room, and the spatial volume of the client's computer room is fixed after the optical line terminal equipment is delivered to the customer, the layout space of the optical line terminal equipment is relatively limited, resulting in the optical line terminal equipment being unable to achieve capacity expansion and upgrade due to the inability to set more optical modules.

[0004] Based on this, how to achieve capacity expansion and upgrading of optical line terminal equipment within a limited layout space has become a difficult problem that technical personnel in this field need to solve urgently. Summary of the invention

[0005] The present application provides a dual SC interface optical module, an optical line terminal device and an optical communication system, so as to achieve capacity expansion and upgrading of the optical line terminal device without significantly increasing the volume of the optical line terminal device by increasing the number of interfaces of each optical module.

[0006] In the first aspect, the present application provides a dual SC interface optical module, the optical module includes a housing, the housing includes an interface portion, the interface portion includes a first baffle, a second baffle, a third baffle and a fourth baffle, the first baffle and the second baffle are arranged oppositely, the third baffle and the fourth baffle are arranged oppositely, and the first baffle, the second baffle, the third baffle and the fourth baffle are connected in sequence to form a rectangular installation interval. The partition is located in the above-mentioned rectangular installation interval, the partition is located between the first baffle and the second baffle, and the partition is arranged parallel to the first baffle and the second baffle. In addition, the partition is connected to the third baffle and the fourth baffle, so that the partition divides the above-mentioned rectangular installation interval into a first interface and a second interface. In addition, the first baffle has a first guide groove, the notch of the first guide groove is located at the end of the first baffle, and the first guide groove extends in a direction parallel to the third baffle and the fourth baffle. Similarly, the second baffle has a second guide groove, the notch of the second guide groove is located at the end of the second baffle, and the second guide groove extends in a direction parallel to the third baffle and the fourth baffle.

[0007] The optical module provided by the present application includes two interfaces that can be used to connect with the communication cable to realize the reception of two paths of light, so that the number of interfaces of the optical line terminal device can be doubled without increasing the number of optical modules, thereby realizing the expansion and upgrade of the optical line terminal device under the condition that the layout space of the optical line terminal device remains unchanged. In addition, in the optical module, by respectively setting the first guide groove and the second guide groove on the first retaining wall and the second retaining wall that are arranged oppositely, the size of the interface part of the optical module can be made smaller, which is conducive to realizing the miniaturization design of the optical module, and the design of the first guide groove and the second guide groove can also play a fool-proof role in the plugging of the communication cable with the first interface and the second interface, so as to improve the plugging efficiency of the communication cable with the corresponding interface.

[0008] In a possible implementation of the present application, the optical module includes a first optical device and a second optical device, the first optical device and the second optical device are arranged in a direction from the first retaining wall to the second retaining wall, the first optical device includes a first communication cable connector, and the second optical device includes a second communication cable connector. In addition, the housing also includes an optical device mounting portion, the optical device mounting portion is located on the side of the interface portion away from the notch of the first guide groove and the notch of the second guide groove, the first optical device and the second optical device are installed on the optical device mounting portion, and the first communication cable connector is inserted in the first interface, and the second communication cable connector is inserted in the second interface. In this way, the first communication cable connector of the first optical device and the second communication cable connector of the second optical device can be connected to the communication cable through the corresponding interface, thereby realizing the reception of light by the first optical device and the second optical device.

[0009] In addition, the housing further comprises a first side cover plate and a second side cover plate, the first side cover plate and the second side cover plate are arranged opposite to each other, the first side cover plate and the first baffle wall are arranged on the same side, and the first side cover plate abuts against the end of the notch of the first baffle wall away from the first guide groove. The second side cover plate and the second baffle wall are arranged on the same side, and the second side cover plate abuts against the end of the notch of the second baffle wall away from the second guide groove. In this way, the first optical device and the second optical device can both have the side of the housing installed in the optical device installation part, which facilitates the installation of the first optical device and the second optical device.

[0010] In the present application, the first side cover is locked with the optical device mounting portion through a plurality of first fasteners, and the plurality of first fasteners are distributed around the circumference of the first optical device to improve the connection reliability between the first side cover and the optical device mounting portion.

[0011] In addition, when the above-mentioned multiple first fasteners are connected to the optical device mounting part, at least one first fastener can be locked with the end of the optical device mounting part close to the interface part, and at least one first fastener can be locked with the end of the optical device mounting part away from the interface part. In this way, the first side cover plate can limit the movement of the first optical device along the direction from the first side cover plate to the second side cover plate, thereby effectively preventing the first optical device from shaking during the process of plugging and unplugging the communication cable and the optical module, which is conducive to improving the stability of the first optical device in transmitting optical signals.

[0012] Similarly, the second side cover plate can be locked with the optical device mounting portion by a plurality of second fasteners, and the plurality of second fasteners are distributed around the circumference of the second optical device, thereby improving the connection reliability between the second side cover plate and the optical device mounting portion.

[0013] In addition, at least one second fastener is locked with the end of the optical device installation portion close to the interface portion, and at least one second fastener is locked with the end of the optical device installation portion away from the interface portion. In this way, the second side cover plate can limit the movement of the second optical device along the direction from the first side cover plate to the second side cover plate, thereby effectively preventing the second optical device from shaking during the plugging and unplugging of the communication cable and the optical module, which is conducive to improving the stability of the second optical device in transmitting optical signals.

[0014] In a possible implementation of the present application, a first elastic material layer is provided between the end surface of the first optical device facing the first side cover plate and the first side cover plate, and the first optical device and the first side cover plate squeeze the first elastic material layer. In this way, while improving the supporting strength of the first side cover plate for the first optical device, the heat generated by the first optical device can be transferred to the first side cover plate, thereby achieving heat dissipation of the first optical device through the first side cover plate.

[0015] In addition, a second elastic material layer is provided between the end surface of the second optical device facing the second side cover plate and the second side cover plate, and the second optical device and the second side cover plate squeeze the second elastic material layer. In this way, the support strength of the second side cover plate for the second optical device can be improved, and the heat generated by the second optical device can be transferred to the first side cover plate, thereby achieving heat dissipation of the second optical device through the second side cover plate.

[0016] In the present application, in order to improve the heat dissipation performance of the first side cover plate, its material may be, but is not limited to, plastic, zinc alloy or copper alloy. In addition, a first heat dissipation tooth may be provided on the first side cover plate to improve the heat dissipation efficiency of the first side cover plate by increasing the heat dissipation area of ​​the first side cover plate, thereby achieving effective heat dissipation of the first optical device by the first side cover plate.

[0017] The material of the second side cover plate may also be plastic, zinc alloy or copper alloy. The materials of the first side cover plate and the second side cover plate may be the same or different. In addition, the second side cover plate may be provided with second heat dissipation teeth to improve the heat dissipation efficiency of the second side cover plate by increasing the heat dissipation area of ​​the second side cover plate, thereby achieving effective heat dissipation of the second optical device by the second side cover plate.

[0018] In a possible implementation of the present application, the first optical device further includes a first tube body, the first communication cable connector is connected to one end of the first tube body, a third elastic material layer is provided between the connection between the first optical communication cable connector and the first tube body and the side wall of the optical device mounting portion, and the connection between the first communication cable connector and the first tube body and the side wall of the optical device mounting portion squeezes the third elastic material layer. In this way, the first optical device and the optical device mounting portion can be effectively overlapped, which can improve the structural reliability of the first optical device while forming a Faraday cage at the optical device mounting portion, thereby effectively reducing the leakage of noise generated by the first optical device.

[0019] Similarly, the second optical device also includes a second tube body, the second communication cable connector is connected to one end of the second tube body, a fourth elastic material layer is provided between the connection between the second communication cable connector and the second tube body and the side wall of the optical device installation part, and the connection between the second communication cable connector and the second tube body and the side wall of the optical device installation part squeezes the fourth elastic material layer. In this way, the first optical device and the optical device installation part can be effectively overlapped, which can improve the structural reliability of the first optical device while forming a Faraday cage at the optical device installation part, thereby effectively reducing the leakage of noise generated by the first optical device.

[0020] In a possible implementation of the present application, along the direction from the first baffle to the first side cover, the first guide groove includes a first guide portion and a second guide portion, the first guide portion passes through the first baffle, the second guide portion is disposed on the first side cover, and the first guide portion and the second guide portion are disposed opposite to each other. Thus, the first guide groove can provide a sufficiently long guide length for the plugging of the cable head of the communication cable and the optical module, so as to improve the convenience of plugging the communication cable and the optical module.

[0021] Similarly, along the direction from the second baffle to the second side cover, the second guide groove includes a third guide portion and a fourth guide portion, the third guide portion passes through the second baffle, the fourth guide portion is disposed on the second side cover, and the third guide portion and the fourth guide portion are disposed opposite to each other. Thus, the second guide groove can provide a sufficiently long guide length for the plugging of the cable head of the communication cable and the optical module, so as to improve the convenience of plugging the communication cable and the optical module.

[0022] In a possible implementation of the present application, the optical module also includes a first clip and a second clip, the first clip is installed on the first interface, the first clip includes a first mounting portion and two first clipping portions, the first mounting portion is connected to the side wall of the interface portion, the first mounting portion includes a first mounting hole, the first mounting hole is coaxially arranged with the first communication cable connector, and the aperture of the first mounting hole is greater than or equal to the outer diameter of the first communication cable connector, so that the first communication cable connector can extend from the first mounting hole to the first interface. In addition, the two first clipping portions are located on the side of the first mounting portion away from the optical device mounting portion, the first mounting hole is located between the two first clipping portions, the two first clipping portions are arranged in the direction from the third retaining wall to the fourth retaining wall, and the end of each first clipping portion away from the first mounting portion is provided with a first limiting protrusion, and the first limiting protrusions of the two first clipping portions are arranged relative to each other. In this way, the two first clamping parts of the first buckle can limit the cable head of the communication cable inserted in the first interface to prevent the cable head of the communication cable from falling out of the first interface, thereby improving the connection reliability between the cable head of the communication cable and the first interface, which is beneficial to improving the reliability of the optical module in receiving optical signals.

[0023] Similarly, when the second clip is specifically set, the second clip is installed on the second interface, the second clip includes a second mounting portion and two second clamping portions, the second mounting portion is connected to the side wall of the interface portion, the second mounting portion includes a second mounting hole, the second mounting hole is coaxially arranged with the second communication cable connector, and the aperture of the second mounting hole is greater than or equal to the outer diameter of the second communication cable connector, so that the second communication cable connector can extend from the second mounting hole to the second interface. In addition, the two second clamping portions are located on the two sides of the second mounting portion away from the optical device mounting portion, the second mounting hole is located between the two second clamping portions, the two second clamping portions are arranged in the direction from the third retaining wall to the fourth retaining wall, and the end of each second clamping portion away from the second mounting portion is provided with a second limiting protrusion, and the second limiting protrusions of the two second clamping portions are arranged oppositely. In this way, the two second clamping portions of the second clip can limit the cable head of the communication cable inserted in the second interface to prevent the cable head of the communication cable from coming out of the second interface, thereby improving the plug-in reliability of the cable head of the communication cable and the second interface, which is conducive to improving the reliability of the optical module receiving the optical signal.

[0024] In a possible implementation of the present application, in order to meet the miniaturized design requirements of the optical module, the hole center distance between the first communication cable connector and the second communication cable connector in the direction from the first retaining wall to the second retaining wall can be set to 7.4 mm to 12 mm.

[0025] In addition, the first interface and the second interface are symmetrically arranged in the direction from the first retaining wall to the second retaining wall. Or, the thickness of the partition is 0.4 mm to 5 mm in the direction from the first retaining wall to the second retaining wall. These designs can also effectively reduce the size of the optical module.

[0026] In addition, in the direction from the first retaining wall to the second retaining wall, the thickness of the partition is 0.4 mm to 5 mm, which can improve the reliability of plugging and unplugging the optical module and the communication cable while ensuring the structural strength of the partition.

[0027] In a possible implementation of the present application, the housing further includes a circuit board mounting portion, and the optical device mounting portion is located between the circuit board mounting portion and the interface portion. In addition, the housing further includes a slide groove, the notch of which is opened in the arrangement direction from the third baffle wall to the fourth baffle wall, part of the slide groove is located in the circuit board mounting portion, and the slide groove extends along the arrangement direction of the circuit board mounting portion, the optical device mounting portion and the interface portion. The optical module further includes an unlocking assembly, the unlocking assembly includes an unlocking member and a handle, the unlocking member is installed in the slide groove, the handle is connected to the end of the unlocking member facing away from the circuit board mounting portion, and part of the handle is located outside the housing. The end of the unlocking member facing away from the handle is located in the circuit board mounting portion, and the end of the unlocking member facing away from the handle is on the surface of the first circuit board mounting portion. In addition, the circuit board mounting portion is provided with a hook, and the direction in which the hook protrudes from the surface of the circuit board mounting portion is the same as the direction of the notch of the slide groove. In this way, when the optical module is plugged into the cage of the single board of the optical line terminal device, the hook can be plugged into the cage, and the cage can limit the movement of the optical module in the direction of separation from the cage to prevent the optical module from escaping from the cage, thereby achieving reliable plugging of the optical module and the cage.

[0028] When it is necessary to pull out the optical module plugged into the cage, a pulling force can be applied to the handle of the unlocking assembly of the optical module in the direction of disengaging the optical module from the cage, so that the handle drives the unlocking piece to slide in the slide groove along the arrangement direction of the circuit board mounting portion, the optical device mounting portion and the interface portion, and the height of the end of the unlocking piece away from the handle exposed from the surface of the circuit board mounting portion is greater than the height of the hook protruding from the surface of the circuit board mounting portion. In this way, the cage can be lifted by the end of the unlocking piece away from the handle to disengage the cage from the hook, and the cage no longer restricts the movement of the optical module in the direction of disengagement from the cage, thereby allowing the optical module to be pulled out of the cage.

[0029] In a possible implementation of the present application, the unlocking assembly further includes a spring, the unlocking member includes a spring mounting groove, and the spring is mounted in the spring mounting groove. In addition, the slide groove is provided with a limiting column, the limiting column is inserted in the spring mounting groove, and along the arrangement direction of the circuit board mounting portion, the optical device mounting portion and the interface portion, one end of the spring abuts against the limiting column, and the other end of the spring abuts against the groove wall of the spring mounting groove. In this way, in the process of pulling the handle of the unlocking assembly, the unlocking member can compress the spring so that the spring accumulates elastic force, and then after the handle is released, the unlocking member can slide in the opposite direction in the slide groove under the action of the elastic force of the spring, so that the end of the unlocking member facing away from the handle is hidden in the circuit board mounting portion again, so as to achieve the reset of the unlocking member.

[0030] In a possible implementation of the present application, the optical module further includes a bottom plate, which covers the notch of the slide slot and is fixedly connected to the housing, so that the bottom plate can limit the unlocking component to the slide slot to improve the structural reliability of the optical module.

[0031] In a second aspect, the present application further provides an optical line terminal device, which includes a single board and the optical module of the first aspect, and the optical module is electrically connected to the single board. Since the optical module provided in the first aspect includes two interfaces that can be used to connect to communication cables to achieve reception of two paths of light, the number of interfaces of the optical line terminal device can be doubled without increasing the number of optical modules, thereby achieving expansion and upgrading of the optical line terminal device without changing the layout space of the optical line terminal device.

[0032] In a third aspect, the present application further provides an optical communication system, the optical communication system comprising an optical network unit and an optical line terminal device according to the second aspect, the optical line terminal device being connected to the optical network unit via a passive optical distribution network device. Since the optical line terminal device provided by the second aspect can achieve capacity expansion and upgrade of the optical line terminal device without changing the layout space, it is conducive to achieving capacity expansion and upgrade of the optical communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the structure of an optical communication system provided in an embodiment of the present application;

[0034] Figure 2 A simplified structural diagram of an optical module provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of the structure of an optical module provided in an embodiment of the present application;

[0036] Figure 4 for Figure 3 A Z-direction view of the optical module shown in FIG.

[0037] Figure 5 A schematic diagram of the plugging process of the communication cable and the first interface provided in an embodiment of the present application;

[0038] Figure 6 A structural schematic diagram of an optical module and a communication cable provided in an embodiment of the present application in a plug-in state;

[0039] Figure 7 for Figure 3 A schematic diagram of the local structure of the optical module at A shown in FIG.

[0040] Figure 8 for Figure 7 BB cross-sectional view of the optical module shown;

[0041] Fig. 9 for Figure 7 A C-direction view of the optical module shown;

[0042] Fig.10 for Fig. 9 A top view of the optical module shown in ;

[0043] Fig.11 A schematic diagram of the structure of a first buckle provided in an embodiment of the present application;

[0044] Fig.12a Another schematic diagram of the process of plugging a communication cable and an optical module provided in an embodiment of the present application;

[0045] Figure 12b Another structural schematic diagram of a communication cable and an optical module in a plug-in state provided in an embodiment of the present application;

[0046] Fig.13 for Figure 3 An enlarged view of the local structure of the optical module at A shown in FIG.

[0047] Fig.14 A schematic diagram of the structure of the optical module provided in an embodiment of the present application from another angle;

[0048] Fig.15 for Fig.14 An exploded view of the optical module shown;

[0049] Fig.16 for Fig.15 A schematic diagram of a partial assembly structure of an optical module shown;

[0050] Fig.17a A schematic diagram of a structure in which an optical module provided in an embodiment of the present application is plugged in front of a cage;

[0051] Fig.17b A schematic diagram of the structure of the optical module and the cage provided in an embodiment of the present application after being plugged into place.

[0052] Reference numerals:

[0053] 100-optical line terminal equipment; 1001-cage; 200-optical network unit; 300-passive optical distribution network device;

[0054] 1-optical module; 101-housing; 1011-interface portion; 10111-interface; 10111a-first interface; 10111b-second interface;

[0055] 10112a-first retaining wall; 10112b-second retaining wall; 10112c-third retaining wall; 10112d-fourth retaining wall; 10113-partition;

[0056] 101121-first guide groove; 1011211-first guide portion; 1011212-second guide portion; 101122-second guide groove;

[0057] 1012-optical device mounting portion; 1013-first side cover plate; 10131-first heat dissipation tooth; 10132-first labyrinth shielding structure;

[0058] 1014-second side cover; 10141-second labyrinth shielding structure; 1015-circuit board mounting portion; 10151-hook; 1016-slideway;

[0059] 10161-limiting column; 102-first optical device; 1021-first communication cable connector; 1022-first tube body; 103-second optical device;

[0060] 1031 - second communication cable connector; 1032 - second tube body; 104 - first elastic material layer; 105 - second elastic material layer;

[0061] 106 - first fastener; 107 - third elastic material layer; 108 - first buckle; 1081 - first mounting portion; 10811 - first mounting hole;

[0062] 1082-first clamping portion; 10821-first limiting protrusion; 109-unlocking assembly; 1091-unlocking member; 10911-spring mounting groove;

[0063] 1092-handle; 1093-spring; 1010-base plate; 10101-label; 2-communication cable; 201-cable head; 2011-first guide key. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as being limited to the embodiments described herein. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted. The words expressing position and direction described in the embodiments of the present application are all illustrated by taking the accompanying drawings as examples, but changes may be made as needed, and the changes made are all included in the scope of protection of the present application. The drawings of the embodiments of the present application are only used to illustrate the relative position relationship, and they do not represent the true proportion.

[0065] It should be noted that specific details are described in the following description to facilitate understanding of the present application. However, the present application can be implemented in a variety of other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application. Therefore, the present application is not limited to the specific implementation methods disclosed below.

[0066] In order to facilitate the understanding of the optical module, optical line terminal equipment and optical communication system provided by the present application, the following first introduces its application scenarios. With the development of communication technology, the application of using optical signals to realize signal transmission has become more and more widespread. Figure 1 , Figure 1 A structural schematic diagram of an optical communication system provided in an embodiment of the present application. The optical communication system may include an optical line terminal device 100 and an optical network unit 200, wherein the optical line terminal device 100 may include an optical module 1, and the optical module 1 may be connected to a passive optical distribution network device 300 via a communication cable, and the passive optical distribution network device 300 may be used to distribute the light beam emitted by the optical module 1 to multiple optical network units 200, so that the optical line terminal device 100 is connected to the optical network unit 200 via the passive optical distribution network device 300.

[0067] It is understandable that the optical communication system may include multiple optical line terminal devices 100, and the optical line terminal devices 100 connected by the communication cable may interact with each other through optical signals. In addition, each optical line terminal device 100 may include one or more optical modules 1, and the one or more optical modules 1 may be arranged on a single board of the optical line terminal device 100.

[0068] Reference Figure 2 , Figure 2 A schematic diagram of the structure of an optical module provided in an embodiment of the present application. The optical module 1 generally includes a housing 101, an optical device and an optical module driving circuit, the optical device and the optical module driving circuit are accommodated in the housing 101, and the optical module driving circuit is connected to the optical device. The housing 101 includes an interface 10111 for connecting a communication cable, and the optical device is connected to the communication cable through the interface 10111.

[0069] In the optical module 1, the optical module driving circuit can provide an electrical signal to the optical device, and the optical device can convert the electrical signal into an optical signal, which can be transmitted via a communication optical cable connected to the interface 10111. In addition, the optical device can receive an external optical signal through the interface 10111, and convert the received optical signal into an electrical signal and transmit it to the optical module driving circuit for processing.

[0070] At present, an optical module 1 usually has only one interface 10111, and an optical module 1 is only used to receive one line of light. As customers' demands for network transmission rate and capacity gradually increase, in order to expand the capacity of optical line terminal equipment, it is necessary to set more optical modules 1 on the optical line terminal equipment to provide more interfaces 10111. However, a single board of the optical line terminal equipment can only support a limited number of optical modules 1, and the layout space of the optical line terminal equipment is usually relatively limited, which makes it difficult to expand and upgrade the capacity of the optical line terminal equipment.

[0071] In view of this, the optical module provided in the embodiment of the present application adopts a dual SC interface design so that each optical module can receive two paths of light, which can double the number of interfaces of the optical line terminal device without increasing the number of optical modules, thereby achieving the expansion and upgrade of the optical line terminal device without changing the layout space of the optical line terminal device. The optical module provided in the embodiment of the present application will be described in detail below in conjunction with the accompanying drawings.

[0072] Reference Figure 3 , Figure 3 A schematic diagram of the structure of an optical module 1 provided in an embodiment of the present application. The optical module 1 comprises a housing 101, and the housing 101 comprises an interface portion 1011, which is a portion of the optical module 1 used for connecting a communication cable.

[0073] When setting the interface part 1011 specifically, you can refer to Figure 4 , Figure 4 for Figure 3 The interface portion 1011 includes a first retaining wall 10112a, a second retaining wall 10112b, a third retaining wall 10112c and a fourth retaining wall 10112d, wherein the first retaining wall 10112a and the second retaining wall 10112b are arranged opposite to each other, the third retaining wall 10112c and the fourth retaining wall 10112d are arranged opposite to each other, and the first retaining wall 10112a, the second retaining wall 10112b, the third retaining wall 10112c and the fourth retaining wall 10112d are connected in sequence, so that the first retaining wall 10112a, the second retaining wall 10112b, the third retaining wall 10112c and the fourth retaining wall 10112d enclose an installation area, which can be exemplarily a rectangular installation area.

[0074] In the embodiment of the present application, for the convenience of description, the arrangement direction from the first retaining wall 10112a to the second retaining wall 10112b can be defined as the X direction, the arrangement direction from the third retaining wall 10112c to the fourth retaining wall 10112d can be defined as the Y direction, and the plug-in direction of the communication cable 2 and the optical module 1 can be defined as the Z direction.

[0075] You can continue to refer to Figure 4In the optical module 1 provided in the present application, the interface part 1011 may further include a partition 10113, which is located in the above-mentioned rectangular installation interval, and the partition 10113 is located between the first baffle 10112a and the second baffle 10112b, and the partition 10113 is connected to the third baffle 10112c and the fourth baffle 10112d, so that the partition 10113 divides the installation interval surrounded by the first baffle 10112a, the second baffle 10112b, the third baffle 10112c and the fourth baffle 10112d into two interfaces. In addition, the partition 10113 may be arranged in parallel with the first baffle 10112a and the second baffle 10112b, and when the above-mentioned installation interval is a rectangular installation interval, the partition 10113 divides the rectangular installation interval into two rectangular interfaces, and the two interfaces may both be SC interfaces. In the embodiment of the present application, for the convenience of description, the above two interfaces are named as the first interface 10111a and the second interface 10111b respectively.

[0076] like Figure 3 As shown, the first retaining wall 10112a has a first guide groove 101121, the notch of the first guide groove 101121 is located at the end of the first retaining wall 10112a, the notch of the first guide groove 101121 is in the same direction as the first interface 10111a, and the first guide groove 101121 can extend in a direction parallel to the third retaining wall 10112c and the fourth retaining wall 10112d, that is, the first guide groove 101121 extends in the Z direction, so that the first guide groove 101121 can guide the plugging of the communication cable and the first interface 10111a. In specific implementation, refer to Figure 5 , Figure 5 A schematic diagram of the plugging process of the communication cable 2 and the first interface 10111a provided in an embodiment of the present application. The cable head 201 of the communication cable 2 may be provided with a first guide key 2011, which may protrude from the surface of the cable head 201, and the first guide key 2011 matches the shape of the first guide groove 101121. Exemplarily, the first guide groove 101121 may be a linear groove, and the first guide key 2011 may be provided as a linear protrusion.

[0077] When the communication cable 2 is plugged into the first interface 10111a, the first guide key 2011 can be inserted into the first guide groove 101121 through the notch of the first guide groove 101121, and the first guide key 2011 can slide along the Z direction in the first guide groove 101121, thereby improving the convenience of plugging the communication cable 2 and the optical module 1.

[0078] In addition, you can continue to refer to Figure 3, the second retaining wall 10112b has a second guide groove 101122, the notch of the second guide groove 101122 is located at the end of the second retaining wall 10112b, then the notch of the second guide groove 101122 is in the same direction as the second interface 10111b, and the second guide groove 101122 also extends in a direction parallel to the third retaining wall 10112c and the fourth retaining wall 10112d, or in other words, the second guide groove 101122 extends along the Z direction. In this way, the second guide groove 101122 can guide the plugging of the communication cable 2 and the second interface 10111b, and the plugging process of the communication cable 2 and the second interface 10111b can also refer to Figure 5 , which will not be described in detail here.

[0079] In the optical module 1 provided in the embodiment of the present application, by respectively setting the first guide groove 101121 and the second guide groove 101122 on the first retaining wall 10112a and the second retaining wall 10112b which are arranged opposite to each other, the size of the interface part 1011 of the optical module 1 can be made smaller, thereby facilitating the miniaturization design of the optical module 1. It can be understood that in the present application, by respectively setting the first guide groove 101121 and the second guide groove 101122 on the first retaining wall 10112a and the second retaining wall 10112b, it can play a foolproof role in the plugging of the communication cable 2 and the optical module 1, thereby realizing the quick plugging of the corresponding interfaces of the communication cable 2 and the optical module 1.

[0080] You can continue to refer to Figure 4 In the present application, along the X direction, the width d1 of the first interface 10111a can be 7.45±0.05mm, and the width d2 of the second interface 10111b can be 7.45±0.05mm. In addition, along the Y direction, the length L1 of the first interface 10111a can be 9.05±0.05mm, and the length L2 of the second interface 10111b can be 9.05±0.05mm. In this way, the first interface 10111a and the second interface 10111b can be matched and plugged with the optical cable head 201 of the corresponding communication cable 2.

[0081] In the embodiment of the present application, along the X direction, the first interface 10111a and the second interface 10111b can be symmetrically arranged, which is conducive to realizing the miniaturized design of the optical module 1. It can be understood that when the first interface 10111a and the second interface 10111b are symmetrically arranged along the X direction, the first guide groove 101121 and the second guide groove 101122 are also symmetrically arranged in this direction to meet the plug-in requirements of the communication cable 2 and the corresponding interface.

[0082] In addition, if Figure 4As shown, along the X direction, the thickness d3 of the partition 10113 can be 0.4 mm to 5 mm, and can be 0.5 mm, 0.8 mm, 1 mm or 1.5 mm, etc., so as to meet the miniaturization design requirements of the optical module 1 while ensuring the structural strength of the partition 10113, thereby improving the reliability of plugging and unplugging the optical module 1 and the communication cable 2.

[0083] Reference Figure 6 , Figure 6 A structural schematic diagram of an optical module 1 and a communication cable 2 provided in an embodiment of the present application in a plugged-in state. The optical module 1 provided in an embodiment of the present application includes two interfaces, each of which can be plugged into a corresponding communication cable 2, so that one optical module 1 can receive two paths of light. Since the two interfaces of the optical module 1 are separated by a partition 10113, the two communication cables 2 do not interfere with each other during the plugging and unplugging process with the corresponding interfaces of the optical module 1, which is conducive to improving the reliability of the plugging of the corresponding interfaces of the communication cable 2 and the optical module 1, thereby improving the stability of the optical signal transmission between the communication cable 2 and the optical module 1.

[0084] In order to realize the transmission function of optical signals, the optical module 1 also includes an optical device. Since the optical module 1 provided in the embodiment of the present application includes two interfaces, the optical module 1 may include two optical devices, namely a first optical device 102 and a second optical device 103. The two optical devices and the two interfaces may be arranged in a one-to-one correspondence. Figure 7 , Figure 7 for Figure 3 The partial structural diagram of the optical module at A shown in FIG. The housing 101 of the optical module 1 further includes an optical device mounting portion 1012, which is located on a side of the interface portion 1011 away from the notch of the first guide groove 101121 and the notch of the second guide groove 101122, and the first optical device 102 and the second optical device 103 are mounted on the optical device mounting portion 1012, and the first optical device 102 and the second optical device 103 are arranged along the X direction.

[0085] In addition, refer to Figure 8 , Figure 8 for Figure 7 The first optical device 102 includes a first communication cable connector 1021, which is used to connect to the first communication cable connector 1021. Figure 5 2 to achieve signal transmission between the first optical device 102 and the communication cable 2. In order to facilitate the connection between the first communication cable connector 1021 and the communication cable 2, as shown in Figure 8 As shown, the first communication cable connector 1021 can be inserted into the first interface 10111a of the interface portion 1011 by the optical device mounting portion 1012 .

[0086] Similarly, the second optical device 103 includes a second communication cable connector 1031 , which is inserted into the second interface 10111b of the interface portion 1011 by the optical device installation portion 1012 to facilitate the connection between the second communication cable connector 1031 and the communication cable 2 .

[0087] like Figure 8 As shown, in the optical module 1 provided in the embodiment of the present application, the hole center distance H between the first communication cable connector 1021 and the second communication cable connector 1031 can be 7.4 mm to 12 mm, and can be 7.5 mm, 7.7 mm, 8 mm or 8.5 mm, etc., so that the volume of the optical module 1 can be smaller, which is conducive to the miniaturization design of the optical module 1.

[0088] You can continue to refer to Figure 8 The housing of the optical module 1 provided in the embodiment of the present application further includes a first side cover plate 1013 and a second side cover plate 1014, and the first side cover plate 1013 and the second side cover plate 1014 are arranged opposite to each other. Figure 3 The first side cover plate 1013 and the first retaining wall 10112a can be arranged on the same side, and the first side cover plate 1013 abuts against the end of the notch of the first retaining wall 10112a that is away from the first guide groove 101121. Similarly, the second side cover plate 1014 and the second retaining wall 10112b are arranged on the same side, and the second side cover plate 1014 abuts against the end of the notch of the second retaining wall 10112b that is away from the second guide groove 101122.

[0089] It can be understood that in the optical module 1 provided in the embodiment of the present application, the first optical device 102 and the second optical device 103 are arranged in the direction from the first side cover plate 1013 to the second side cover plate 1014, and the first optical device 102 is arranged adjacent to the first side cover plate 1013, and the second optical device 103 is arranged adjacent to the second side cover plate 1014. Figure 8 In the present application, the distance between the end surface of the first optical device 102 facing the first side cover plate 1013 and the first side cover plate 1013 may be greater than 0 and less than or equal to 3 mm. In addition, a first elastic material layer 104 may be provided between the end surface of the first optical device 102 facing the first side cover plate 1013 and the first side cover plate 1013, and the first optical device 102 and the first side cover plate 1013 may squeeze the first elastic material layer 104. In this way, effective contact between the first optical device 102 and the first side cover plate 1013 can be achieved, so that the heat generated by the first optical device 102 can be transferred to the first side cover plate 1013 through the first elastic material layer 104, so as to achieve heat dissipation of the first optical device 102 through the first side cover plate 1013.

[0090] In the present application, the material of the first elastic material layer 104 is not limited, and it can be exemplarily a thermal pad or an absorbing material layer, etc., which can be selected according to the heat dissipation requirements of the first optical device 102. In addition, in order to improve the heat dissipation performance of the first side cover plate 1013, the material of the first side cover plate 1013 can be plastic, zinc alloy or copper alloy, etc.

[0091] You can continue to refer to Figure 7 The first side cover plate 1013 may also be provided with a first heat dissipation tooth 10131 to further improve the heat dissipation performance of the first side cover plate 1013. The extension direction of the first heat dissipation tooth 10131 may be specifically set according to a specific application scenario. For example, the first heat dissipation tooth 10131 may be parallel to the flow direction of the wind in the wind duct where the optical module 1 is located.

[0092] like Figure 8 As shown, the distance between the end surface of the second optical device 103 facing the second side cover plate 1014 and the second side cover plate 1014 may also be greater than 0 and less than or equal to 3 mm, and a second elastic material layer 105 may also be provided between the end surface of the second optical device 103 facing the second side cover plate 1014 and the second side cover plate 1014, and the second optical device 103 and the second side cover plate 1014 may squeeze the second elastic material layer 105. Thus, the heat generated by the second optical device 103 may be transferred to the second side cover plate 1014 through the second elastic material layer 105, so as to achieve heat dissipation of the second optical device 103 through the second side cover plate 1014.

[0093] The material of the second elastic material layer 105 may also be a heat conductive pad or a wave absorbing material layer, and the material of the second elastic material layer 105 may be the same as or different from that of the first elastic material layer 104. In addition, the material of the second side cover plate 1014 may be plastic, zinc alloy or copper alloy, etc., to improve the heat dissipation performance of the second side cover plate 1014. In addition, the second side cover plate 1014 may be provided with a second heat dissipation tooth, which may be provided with reference to the first heat dissipation tooth 10131, and will not be described in detail here.

[0094] It is understandable that, by adopting the design of the optical module 1 provided in the present application, the first optical device 102 and the second optical device 103 can be respectively installed into the optical device mounting portion 1012 from the two sides of the housing 101 arranged along the X direction, and then the first side cover plate 1013 and the second side cover plate 1014 are installed.

[0095] In the present application, the first side cover plate 1013 can be locked with the optical device mounting portion 1012 through a plurality of first fasteners 106. Fig. 9 , Fig. 9 for Figure 7 The C-direction view of the optical module 1 is shown in FIG. Fig. 9The first side cover plate 1013 is omitted. Figure 7 and Fig. 9 , a plurality of first fasteners 106 for connecting the first side cover plate 1013 and the optical device mounting portion 1012 can be distributed around the circumference of the first optical device 102. Specifically, at least one first fastener 106 can be locked with the end of the optical device mounting portion 1012 close to the interface portion 1011, and at least one first fastener 106 can be locked with the end of the optical device mounting portion 1012 away from the interface portion 1011. In this way, the first side cover plate 1013 can effectively restrict the movement of the first optical device 102 along the X direction, which can effectively prevent the first optical device 102 from shaking during the plugging and unplugging of the communication cable 2 and the optical module 1, thereby facilitating the improvement of the stability of the first optical device 102 in transmitting optical signals.

[0096] The second side cover plate 1014 can be set with reference to the first side cover plate 1013. Specifically, the second side cover plate 1014 can be locked with the optical device mounting portion 1012 through a plurality of second fasteners. Among them, at least one second fastener is locked with the end of the optical device mounting portion 1012 close to the interface portion 1011, and at least one second fastener is locked with the end of the optical device mounting portion 1012 away from the interface portion 1011. In order to realize the effective constraint of the second side cover plate 1014 on the movement of the second optical device 103 along the X direction, it can effectively prevent the second optical device 103 from shaking during the plugging and unplugging of the communication cable 2 and the optical module 1, thereby facilitating the improvement of the stability of the second optical device 103 in transmitting the optical signal.

[0097] You can continue to refer to Figure 8 and Fig. 9 The first optical device 102 may further include a first tube body 1022, and the first communication cable connector 1021 is connected to one end of the first tube body 1022. Fig.10 , Fig.10 for Fig. 9 The top view of the optical module 1 shown in FIG. 1 is the X-axis view of the optical module 1. In the present application, a third elastic material layer 107 is also provided between the connection between the first communication cable connector 1021 and the first tube body 1022 and the side wall of the optical device mounting portion 1012, and the connection between the first communication cable connector 1021 and the first tube body 1022 and the side wall of the optical device mounting portion 1012 squeezes the third elastic material layer 107. In this way, the first optical device 102 and the optical device mounting portion 1012 can be effectively overlapped, which can improve the structural reliability of the first optical device 102 while forming a Faraday cage at the optical device mounting portion 1012, thereby effectively reducing the leakage of noise generated by the first optical device 102.

[0098] In the optical module 1 provided in the embodiment of the present application, other possible methods may also be used to reduce the leakage of noise generated by the first optical device 102, for example, Figure 7 As shown, the surface of the first side cover plate 1013 facing the first optical device 102 may also be provided with a first maze shielding structure 10132. The first maze shielding structure 10132 may be understood as a retaining wall formed on the first side cover plate 1013. In the process of noise being transmitted to the outside, the first maze shielding structure 10132 may block it to reduce the transmission energy of the noise, thereby playing a role in shielding the noise from leaking out.

[0099] Similar, see Figure 8 The second optical device 103 may further include a second tube body 1032, and the second communication cable connector 1031 is connected to one end of the second tube body 1032. In addition, a fourth elastic material layer ( Figure 8 ), and the fourth elastic material layer is squeezed at the connection between the second communication cable connector 1031 and the second tube body 1032 and the side wall of the optical device installation part 1012. In this way, the second optical device 103 and the optical device installation part 1012 can be effectively overlapped, which can improve the structural reliability of the second optical device 103 and form a Faraday cage at the optical device installation part 1012, thereby effectively reducing the leakage of noise generated by the second optical device 103.

[0100] In addition, if Figure 7 As shown, the surface of the second side cover plate 1014 facing the second optical device 103 may also be provided with a second labyrinth shielding structure 10141, wherein the second labyrinth shielding structure 10141 of the second side cover plate 1014 may be provided with reference to the first labyrinth shielding structure 10132 of the first side cover plate 1013, which will not be described in detail here.

[0101] You can continue to refer to Fig.10 , the optical module 1 provided in the embodiment of the present application further includes a first buckle 108, and the first buckle 108 is installed on the first interface 10111a. Fig.11 , Fig.11 A schematic diagram of the structure of the first buckle 108 provided in the embodiment of the present application. The first buckle 108 may include a first mounting portion 1081 and two first clamping portions 1082, wherein the first buckle 1081 and the first clamping portions 1082 may be referred to together. Fig.10 and Fig.11, the first mounting portion 1081 may be connected to the side wall of the interface portion 1011, and the first mounting portion 1081 may be disposed at the connection between the interface portion 1011 and the optical device mounting portion 1012. It is understandable that the first mounting portion 1081 may include a first mounting hole 10811, and the first mounting hole 10811 may be coaxially disposed with the first communication cable connector 1021. In addition, the aperture of the first mounting hole 10811 is greater than or equal to the outer diameter of the first communication cable connector 1021, so that the first communication cable connector 1021 can extend from the first mounting hole 10811 to the first interface 10111a.

[0102] You can continue to refer to Fig.10 and Fig.11 The two first clamping parts 1082 are located on the side of the first mounting part 1081 away from the optical device mounting part 1012, the first mounting hole 10811 is located between the two first clamping parts 1082, and the two first clamping parts 1082 are arranged along the Y direction. In addition, a first limiting protrusion 10821 is provided at the end of each first clamping part 1082 away from the first mounting part 1081, and the first limiting protrusions 10821 of the two first clamping parts 1082 are arranged opposite to each other.

[0103] Reference Fig.12a , Fig.12a Another schematic diagram of the plugging process of the communication cable and the optical module provided in the embodiment of the present application. During the process of the cable head 201 of the communication cable 2 being plugged into the first interface 10111a along the Z direction, the cable head 201 of the communication cable 2 squeezes the two first clamping parts 1082 of the first buckle 108, so that the two first clamping parts 1082 of the first buckle 108 move in opposite directions.

[0104] Please refer to Figure 12b , Figure 12b A structural schematic diagram of the communication cable 2 and the optical module 1 provided in the embodiment of the present application in a plugged-in state. When the cable head 201 of the communication cable 2 is plugged into place with the first communication cable connector 1021, the two first clamping parts 1082 move toward each other to reset, and the first limiting protrusions 10821 of the two first clamping parts 1082 can limit the movement of the cable head 201 of the communication cable 2 in the direction opposite to the Z direction, thereby preventing the cable head 201 of the communication cable 2 from being disengaged from the first interface 10111a, so as to improve the reliability of the plugging of the cable head 201 of the communication cable 2 with the first interface 10111a.

[0105] When the cable head 201 of the communication cable 2 needs to be pulled out from the first interface 10111a, a pulling force can be applied to the cable head 201 of the communication cable 2 in the direction opposite to the Z direction, so that the cable head 201 of the communication cable 2 squeezes the two first clamping parts 1082 of the first buckle 108, thereby making the two first clamping parts 1082 move in opposite directions, so that the first limiting protrusions 10821 of the two first clamping parts 1082 avoid the cable head 201 of the communication cable 2, thereby achieving the purpose of pulling out the cable head 201 of the communication cable 2.

[0106] In addition, it can be understood that the optical module 1 can also include a second buckle, which is installed on Figure 8 The second interface 10111b shown. In the present application, the second snap can be set with reference to the first snap 108. Simply put, the second snap can include a second mounting portion and two second clamping portions, and the second mounting portion is connected to the side wall of the interface portion 1011. The second mounting portion includes a second mounting hole, and the second mounting hole is coaxially arranged with the second communication cable connector 1031, and the aperture of the second mounting hole is greater than or equal to the outer diameter of the second communication cable connector 1031, so that the second communication cable connector 1031 can extend from the second mounting hole to the second interface 10111b. The two second clamping portions are located on the side of the second mounting portion away from the optical device mounting portion 1012, and the second mounting hole is located between the two second clamping portions. The two second clamping portions are arranged along the Y direction, and the end of each second clamping portion away from the second mounting portion is provided with a second limiting protrusion, and the second limiting protrusions of the two second clamping portions are arranged oppositely. Other specific settings and applications of the second clamping portion can refer to the first clamping portion 1082, and will not be repeated here.

[0107] Refer to Figure 7 and Fig. 9 It can be understood that in the present application, the first side cover 1013 can also cover the first buckle 108, which facilitates the installation of the first buckle 108 and the housing 101. And because the first buckle 108 is provided at the interface portion 1011, the first side cover 1013 can simultaneously cover the interface portion 1011 and the optical device installation portion 1012, which can also make the area of ​​the first side cover 1013 larger, thereby improving the heat dissipation performance of the first side cover 1013.

[0108] It is worth mentioning that, in the optical module 1 provided in the embodiment of the present application, the first side cover plate 1013 can extend to the interface portion 1011, and the first side cover plate 1013 abuts against the first retaining wall 10112a, so in order to achieve reliable plugging of the cable head 201 of the communication cable 2 with the corresponding communication cable connector of the optical module 1, part of the first guide groove 101121 can be set on the first side cover plate 1013. Fig.13 , Fig.13 for Figure 3 The enlarged view of the local structure of the optical module at A is shown in FIG. The first guide groove 101121 may include a first guide portion 1011211 and a second guide portion 1011212, wherein the first guide portion 1011211 is disposed on the first retaining wall 10112a, and the second guide portion 1011212 is disposed on the first side cover plate 1013. Along the Z direction, the first guide portion 1011211 penetrates the first retaining wall 10112a, and the first guide portion 1011211 and the second guide portion 1011212 are disposed opposite to each other. In this way, the first guide groove 101121 can provide a sufficiently long guide length for the plugging of the cable head 201 of the communication cable 2 with the optical module 1, so as to improve the convenience of plugging the communication cable 2 with the optical module 1.

[0109] In addition, you can continue to refer to Fig.13 In the present application, along the Y direction, the width of the second guide portion 1011212 can be made greater than or equal to the width of the first guide portion 1011211, so that the second guide portion 1011212 can play a role in avoiding the cable head 201 of the communication cable 2, thereby absorbing the assembly tolerance between the cable head 201 of the communication cable 2 and the first interface 10111a of the optical module 1.

[0110] Similarly, in the optical module 1 provided in the embodiment of the present application, part of the second guide groove may also be arranged on the second side cover plate. Specifically, along the Z direction, the second guide groove may include a third guide portion and a fourth guide portion, wherein the third guide portion passes through the second retaining wall, the fourth guide portion is arranged on the second side cover plate, and the third guide portion and the fourth guide portion are arranged opposite to each other. In addition, along the Y direction, the width of the fourth guide portion is greater than or equal to the width of the third guide portion, so that the fourth guide portion can play a role in avoiding the cable head 201 of the communication cable 2, thereby absorbing the assembly tolerance of the cable head 201 of the communication cable 2 and the second interface 10111b of the optical module 1.

[0111] It is understandable that in order to enable the optical module 1 to process the optical signals received by the first optical device 102 and the second optical device 103, the optical module 1 may also be provided with a circuit board, and the optical module driving circuit may be provided on the circuit board, so that the first optical device 102 and the second optical device 103 may be electrically connected to the optical module driving circuit through the circuit board, so that the first optical device 102 and the second optical device 103 may transmit the optical signals they receive to the optical module driving circuit for processing, or the optical module driving circuit may provide electrical signals to the first optical device 102 and the second optical device 103. Fig.14 , Fig.14 This is a schematic diagram of the structure of the optical module 1 provided in an embodiment of the present application from another angle. The housing 101 of the optical module 1 further includes a circuit board mounting portion 1015 , and the circuit board of the optical module 1 can be mounted on the circuit board mounting portion 1015 .

[0112] like Fig.14 As shown, in the present application, the optical device mounting portion 1012 is located between the circuit board mounting portion 1015 and the interface portion 1011, and the interface portion 1011, the optical device mounting portion 1012 and the circuit board mounting portion 1015 are arranged in sequence along the Z direction. It is worth mentioning that in the present application, the interface portion 1011, the optical device mounting portion 1012 and the circuit board mounting portion 1015 of the housing 101 can be an integrated structure to improve the integration level of the optical module 1.

[0113] In addition, refer to Fig.15 , Fig.15 for Fig.14 The exploded view of the optical module 1 is shown. The housing 101 of the optical module 1 further includes a slide groove 1016, the notch of which is opened along the Y direction. The slide groove 1016 extends along the Z direction, and part of the slide groove 1016 is located at the circuit board mounting portion.

[0114] You can continue to refer to Fig.15 The optical module 1 further includes an unlocking assembly 109, which includes an unlocking member 1091 and a handle 1092. The unlocking member 1091 is installed in the slide slot 1016, and the handle 1092 is connected to the end of the unlocking member 1091 away from the circuit board mounting portion 1015, and the handle 1092 is located outside the housing 101. Fig.16 , Fig.16 for Fig.15 The end of the unlocking member 1091 which is away from the handle 1092 can be located at the circuit board mounting portion 1015, and Fig.16 In the state shown, the end of the unlocking member 1091 away from the handle 1092 may be lower than the surface of the circuit board mounting portion 1015 , that is, the end of the unlocking member 1091 away from the handle 1092 is hidden in the circuit board mounting portion 1015 .

[0115] You can continue to refer to Fig.16 The circuit board mounting portion 1015 may also be provided with a hook 10151, and the hook 10151 and the slide groove 1016 are located on the same side of the circuit board mounting portion 1015, so that the direction in which the hook 10151 protrudes from the surface of the circuit board mounting portion 1015 is the same as the direction of the notch of the slide groove 1016.

[0116] It is worth mentioning that when the optical module 1 is applied to the optical line terminal equipment, refer to Fig.17a , Fig.17aA schematic diagram of a structure in which the optical module 1 provided in the embodiment of the present application is plugged into the cage 1001. The circuit board mounting portion 1015 of the optical module 1 can be plugged into the cage 1001 of the single board of the optical line terminal device along the Z direction, thereby realizing the electrical connection between the optical module 1 and the single board. Fig.17a As shown, before the optical module 1 is plugged into the cage 1001 , the cage 1001 is located on the side of the hook 10151 away from the optical device mounting portion 1012 .

[0117] In addition, refer to Fig.17b , Fig.17b A schematic diagram of the structure of the optical module 1 and the cage 1001 provided in the embodiment of the present application after being plugged into place. After the optical module 1 and the cage 1001 are plugged into place, the hook 10151 of the circuit board mounting portion 1015 can be plugged into the cage 1001, and the cage 1001 can limit the movement of the optical module 1 in the direction opposite to the Z direction, that is, limit the movement of the optical module 1 in the direction away from the cage 1001, so as to prevent the optical module 1 from escaping from the cage 1001, thereby achieving reliable plugging of the optical module 1 and the cage 1001.

[0118] When it is necessary to pull out the optical module 1 plugged into the cage 1001, a pulling force can be applied to the handle 1092 of the unlocking assembly 109 of the optical module 1 in the direction of disengaging the optical module 1 from the cage, so that the handle 1092 drives the unlocking member 1091 to slide in the slide groove 1016 in the direction opposite to the Z direction, so that the height of the end of the unlocking member 1091 away from the handle 1092 exposed from the surface of the circuit board mounting portion 1015 is greater than the height of the hook 10151 protruding from the surface of the circuit board mounting portion 1015, so that the cage 1001 can be lifted by the end of the unlocking member 1091 away from the handle 1092, so that the cage 1001 is disengaged from the hook 10151, and the cage 1001 no longer restricts the movement of the optical module 1 in the direction of disengaging from the cage 1001, so that the optical module 1 can be pulled out of the cage 1001.

[0119] Since in the optical module 1 provided in the embodiment of the present application, the unlocking component 109 and the two interfaces of the optical module 1 are arranged in a stacked manner, and the extension direction of the handle 1092 of the unlocking component 109 is the same as the direction of the interface of the optical module 1, the handle 1092 can avoid the interface of the optical module 1, so the setting of the unlocking component 109 will not interfere with the plugging and unplugging of the communication cable and the optical module 1, and the plugging and unplugging of the communication cable and the optical module 1 will not affect the operation of the unlocking component 109. In this way, when unlocking the optical module 1 from the cage, there is no need to unplug the communication cable plugged in the optical module 1 first, thereby realizing the decoupling of the plugging and unplugging process of the optical module 1 from the cage and the plugging and unplugging process of the communication cable from the optical module 1, so as to improve the convenience of using the optical module 1.

[0120] You can continue to refer to Fig.15 The unlocking assembly 109 further includes a spring 1093, and the unlocking member 1091 includes a spring mounting groove 10911, and the spring 1093 is installed in the spring mounting groove 10911. In addition, a limiting column 10161 can be provided in the slide groove 1016, which can be referred to together. Fig.15 and Fig.16 , the limiting column 10161 can be inserted into the spring installation groove 10911, and along the Z direction, one end of the spring 1093 abuts against the limiting column 10161, and the other end of the spring 1093 abuts against the groove wall of the spring installation groove 10911. In this way, when the handle 1092 of the unlocking assembly 109 is pulled, the unlocking member 1091 can compress the spring 1093 so that the spring 1093 accumulates elastic force. After the handle 1092 is released, the unlocking member 1091 can slide in the slide groove 1016 in the direction opposite to the Z direction under the elastic force of the spring 1093, so that the end of the unlocking member 1091 away from the handle 1092 is hidden in the circuit board mounting portion 1015 again, so as to realize the reset of the unlocking member 1091.

[0121] In the present application, in order to limit the unlocking component 109 to the slide groove 1016, the optical module 1 may further include a bottom plate 1010, which may be further referred to in Fig.15 The bottom plate 1010 covers the notch of the slide slot 1016, and the bottom plate 1010 is fixedly connected to the housing 101. The fixing method of the bottom plate 1010 and the housing 101 can be threaded connection, riveting, bonding or welding, etc., which is not limited in this application.

[0122] In addition, the bottom plate 1010 may also be provided with a label 10101. Fig.15 In the optical module 1 shown, the bottom plate 1010 may only cover the portion of the slide slot 1016 located at the interface portion 1011 and the optical device installation portion 1012, so that during the plugging and unplugging of the optical module 1 and the cage, the structure inside the cage may be prevented from scratching the label 10101, thereby reducing the risk of damage to the label 10101. It is worth mentioning that, in order to facilitate the use of the optical module 1, arrows or numbers or other marks may be processed on the handle 1092 of the unlocking component 109 through processes such as mold forming to indicate the unlocking direction of the optical module 1 and the optical signal transmission of the optical module 1.

[0123] The optical module 1 provided in the embodiment of the present application divides the installation area of ​​the interface part 1011 into two interfaces through the partition 10113, so that the optical module 1 can receive two paths of light, which is conducive to the expansion of the optical module 1. In addition, the optical module 1 can be applied to Figure 1In the optical communication system shown, specifically, the optical line terminal device 100 may include the above-mentioned optical module 1, or the optical network unit 200 may include the above-mentioned optical module 1. In the optical communication system provided by the present application, the optical line terminal device 100 is connected to multiple optical network units 200 in a point-to-multipoint manner through a passive optical distribution network device 300. The optical line terminal device 100 and the optical network unit 200 can communicate using a TDM mechanism, a WDM mechanism, or a TDM / WDM hybrid mechanism. Among them, the direction from the optical line terminal device 100 to the optical network unit 200 is defined as the downlink direction, and the direction from the optical network unit 200 to the optical line terminal device 100 is the uplink direction.

[0124] The passive optical communication system may be a communication network that does not require any active devices to realize data distribution between the optical line terminal device 100 and the optical network unit 200. In a specific embodiment, the data distribution between the optical line terminal device 100 and the optical network unit 200 may be realized by a passive optical distribution network device 300. The passive optical communication system may be an asynchronous transfer mode passive optical network (ATM PON) system or a broadband passive optical network (BPON) system defined by the ITU-T G.983 standard, a gigabit passive optical network (GPON) system defined by the ITU-T G.984 series of standards, an Ethernet passive optical network (EPON) defined by the IEEE 802.3ah standard, a wavelength division multiplexing passive optical network (WDM PON) system, or a next generation passive optical network (NGA PON system, such as an XGPON system defined by the ITU-T G.987 series of standards, a 10GEPON system defined by the IEEE 802.3av standard, a TDM / WDM hybrid PON system, etc.). The entire contents of the various passive optical communication systems defined by the above standards are incorporated by reference in this application document.

[0125] The optical line terminal device 100 is usually located in a central location (e.g., a central office (CO)), which can uniformly manage multiple optical network units 200. The optical line terminal device 100 can act as a medium between the optical network unit 200 and the upper network (not shown), forwarding the data received from the upper network as downlink data to the optical network unit 200, and forwarding the uplink data received from the optical network unit 200 to the upper network. The specific structural configuration of the optical line terminal device 100 may vary depending on the specific type of the passive optical communication system. In one embodiment, the optical line terminal device 100 includes an optical module 1 and a data processing module (not shown), and the optical module 1 can convert the downlink data processed by the data processing module into a downlink optical signal, and send the downlink optical signal to the optical network unit 200 through the passive optical distribution network device 300, and receive the uplink optical signal sent by the optical network unit 200 through the passive optical distribution network device 300, and convert the uplink data signal into an electrical signal and provide it to the data processing module for processing.

[0126] The optical network unit 200 may be distributedly arranged at a user side location (such as a user premises). The optical network unit 200 may be a network device for communicating with the optical line terminal device 100 and the user. Specifically, the optical network unit 200 may act as a medium between the optical line terminal device 100 and the user. For example, the optical network unit 200 may forward the downlink data received from the optical line terminal device 100 to the user, and forward the data received from the user as uplink data to the optical line terminal device 100. The specific structural configuration of the optical network unit 200 may vary depending on the specific type of the passive optical communication system. In one embodiment, the optical network unit 200 includes an optical module 1, which is used to receive the downlink data signal sent by the optical line terminal device 100 through the passive optical distribution network device 300, and send the uplink data signal to the optical line terminal device 100 through the passive optical distribution network device 300.

[0127] The passive optical distribution network device 300 may be a data distribution system, which may include optical fibers, optical couplers, optical combiners / demultiplexers, optical splitters and / or other devices. In one embodiment, the optical fibers, optical couplers, optical combiners / demultiplexers, optical splitters and / or other devices may be passive optical devices. Specifically, the optical fibers, optical couplers, optical combiners / demultiplexers, optical splitters and / or other devices may be devices that do not require power support to distribute data signals between the optical line terminal device 100 and the optical network unit 200. In addition, in other embodiments, the passive optical distribution network device 300 may also include one or more processing devices, such as optical amplifiers or relay devices. In the example of Figure 1In the branching structure shown, the passive optical distribution network device 300 can specifically extend from the optical line terminal equipment 100 to multiple optical network units 200, but can also be configured into any other point-to-multipoint structure.

[0128] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A dual SC interface optical module, characterized in that: The invention comprises a shell, wherein the shell comprises an interface portion, wherein the interface portion comprises a first retaining wall, a second retaining wall, a third retaining wall, a fourth retaining wall and a partition, wherein: The first retaining wall is arranged opposite to the second retaining wall, the third retaining wall is arranged opposite to the fourth retaining wall, and the first retaining wall, the third retaining wall, the second retaining wall and the fourth retaining wall are sequentially connected to form a rectangular installation area; The partition is located in the rectangular installation area, the partition is located between the first baffle wall and the second baffle wall, the partition is arranged parallel to the first baffle wall and the second baffle wall, and the partition is connected to the third baffle wall and the fourth baffle wall; the partition divides the rectangular installation area into a first interface and a second interface; The first retaining wall has a first guide groove, the notch of the first guide groove is located at the end of the first retaining wall, and the first guide groove extends in a direction parallel to the third retaining wall and the fourth retaining wall; the second retaining wall has a second guide groove, the notch of the second guide groove is located at the end of the second retaining wall, and the second guide groove extends in a direction parallel to the third retaining wall and the fourth retaining wall.

2. The optical module according to claim 1, wherein: The optical module further includes a first optical device and a second optical device, the first optical device and the second optical device are arranged along a direction from the first retaining wall to the second retaining wall, the first optical device includes a first communication cable connector, and the second optical device includes a second communication cable connector; The housing also includes an optical device mounting portion, which is located on a side of the interface portion away from the notch of the first guide groove and the notch of the second guide groove; the first optical device and the second optical device are installed on the optical device mounting portion, and the first communication cable connector is plugged into the first interface, and the second communication cable connector is plugged into the second interface.

3. The optical module according to claim 2, characterized in that The shell also includes a first side cover plate and a second side cover plate, the first side cover plate is arranged opposite to the second side cover plate, the first side cover plate is arranged on the same side as the first baffle wall, and the first side cover plate abuts against the end of the notch of the first baffle wall facing away from the first guide groove, the second side cover plate is arranged on the same side as the second baffle wall, and the second side cover plate abuts against the end of the notch of the second baffle wall facing away from the first guide groove.

4. The optical module according to claim 3, characterized in that: The first side cover plate is locked to the optical device mounting portion by a plurality of first fasteners, and the plurality of first fasteners are distributed around the circumference of the first optical device; the second side cover plate is locked to the optical device mounting portion by a plurality of second fasteners, and the plurality of second fasteners are distributed around the circumference of the second optical device.

5. The optical module according to claim 4, characterized in that: At least one of the first fasteners is locked with an end of the optical device mounting portion close to the interface portion, and at least one of the first fasteners is locked with an end of the optical device mounting portion away from the interface portion; At least one of the second fasteners is locked with the end of the optical device mounting portion close to the interface portion, and at least one of the second fasteners is locked with the end of the optical device mounting portion away from the interface portion.

6. The optical module according to any one of claims 3 to 5, characterized in that: A first elastic material layer is disposed between the end surface of the first optical device facing the first side cover plate and the first side cover plate, and the first optical device and the first side cover plate squeeze the first elastic material layer; A second elastic material layer is disposed between the end surface of the second optical device facing the second side cover plate and the second side cover plate, and the second optical device and the second side cover plate press the second elastic material layer.

7. The optical module according to any one of claims 3 to 6, characterized in that: The first side cover plate is made of plastic, zinc alloy or copper alloy; the second side cover plate is made of plastic, zinc alloy or copper alloy.

8. The optical module according to any one of claims 3 to 7, characterized in that: The first side cover plate is provided with first heat dissipation teeth, and the second side cover plate is provided with second heat dissipation teeth.

9. The optical module according to any one of claims 2 to 8, characterized in that: The first optical device further comprises a first tube body, the first communication cable connector is connected to one end of the first tube body, a third elastic material layer is provided between the connection between the first optical communication cable connector and the first tube body and the side wall of the optical device installation portion, and the connection between the first communication cable connector and the first tube body and the side wall of the optical device installation portion squeeze the third elastic material layer; The second optical device also includes a second tube body, the second communication cable connector is connected to one end of the second tube body, a fourth elastic material layer is arranged between the connection between the second communication cable connector and the second tube body and the side wall of the optical device mounting part, and the fourth elastic material layer is squeezed by the connection between the second communication cable connector and the second tube body and the side wall of the optical device mounting part.

10. The optical module according to any one of claims 2 to 9, characterized in that: Along the direction from the first baffle wall to the first side cover plate, the first guide groove includes a first guide portion and a second guide portion, the first guide portion passes through the first baffle wall, the second guide portion is arranged on the first side cover plate, and the first guide portion is arranged opposite to the second guide portion; Along the direction from the second baffle wall to the second side cover plate, the second guide groove includes a third guide portion and a fourth guide portion, the third guide portion passes through the second baffle wall, the fourth guide portion is arranged on the second side cover plate, and the third guide portion is arranged opposite to the fourth guide portion.

11. The optical module according to any one of claims 2 to 10, characterized in that: The optical module also includes a first clip and a second clip, the first clip is installed on the first interface, the first clip includes a first mounting portion and two first clamping portions, the first mounting portion is connected to the side wall of the interface portion, the first mounting portion includes a first mounting hole, the first mounting hole is coaxially arranged with the first communication cable connector, and the aperture of the first mounting hole is greater than or equal to the outer diameter of the first communication cable connector, and the first communication cable connector extends from the first mounting hole to the first interface; the two first clamping portions are located on a side of the first mounting portion away from the optical device mounting portion, the first mounting hole is located between the two first clamping portions, the two first clamping portions are arranged in a direction from the third retaining wall to the fourth retaining wall, and the end of each first clamping portion away from the first mounting portion is provided with a first limiting protrusion, and the first limiting protrusions of the two first clamping portions are arranged opposite to each other; The second clip is installed on the second interface, the second clip includes a second mounting portion and two second clamping portions, the second mounting portion is connected to the side wall of the interface portion, the second mounting portion includes a second mounting hole, the second mounting hole is coaxially arranged with the second communication cable connector, and the aperture of the second mounting hole is greater than or equal to the outer diameter of the second communication cable connector, and the second communication cable connector extends from the second mounting hole to the second interface; the two second clamping portions are located on the side of the second mounting portion away from the optical device mounting portion, the second mounting hole is located between the two second clamping portions, the two second clamping portions are arranged in the direction from the third barrier wall to the fourth barrier wall, and a second limiting protrusion is provided at the end of each second clamping portion away from the second mounting portion, and the second limiting protrusions of the two second clamping portions are arranged opposite to each other.

12. The optical module according to any one of claims 2 to 11, characterized in that: Along the direction from the first retaining wall to the second retaining wall, the hole center distance between the first communication cable connector and the second communication cable connector is 7.4 mm to 12 mm.

13. The optical module according to any one of claims 1 to 12, characterized in that: Along the direction from the first retaining wall to the second retaining wall, the first interface and the second interface are symmetrically arranged.

14. The optical module according to any one of claims 1 to 13, characterized in that: Along the direction from the first retaining wall to the second retaining wall, the thickness of the partition is 0.4 mm to 5 mm.

15. The optical module according to any one of claims 1 to 14, characterized in that: The housing further comprises a circuit board mounting portion, wherein the optical device mounting portion is located between the circuit board mounting portion and the interface portion; The housing further comprises a slide groove, the notch of which is opened in the arrangement direction from the third retaining wall to the fourth retaining wall, a portion of the slide groove is located at the circuit board mounting portion, and the slide groove extends along the arrangement direction of the circuit board mounting portion, the optical device mounting portion and the interface portion; The optical module further includes an unlocking assembly, the unlocking assembly including an unlocking member and a handle, the unlocking member is installed in the slide slot, the handle is connected to the end of the unlocking member away from the circuit board mounting portion, and the handle is located outside the housing; the end of the unlocking member away from the handle is located on the circuit board mounting portion, and the end of the unlocking member away from the handle is lower than the surface of the circuit board mounting portion; The circuit board mounting portion is provided with a hook, and the direction in which the hook protrudes from the surface of the circuit board mounting portion is the same as the direction of the notch of the slide groove. When the handle drives the unlocking member to slide in the slide groove along the arrangement direction of the circuit board mounting portion, the optical device mounting portion and the interface portion, the end of the unlocking member facing away from the handle is exposed from the surface of the circuit board mounting portion at a height greater than the height of the hook protruding from the surface of the circuit board mounting portion.

16. The optical module according to claim 15, characterized in that: The unlocking assembly also includes a spring, and the unlocking piece includes a spring mounting groove, and the spring is installed in the spring mounting groove; the slide groove is provided with a limiting column, and the limiting column is inserted in the spring mounting groove, along the arrangement direction of the circuit board mounting part, the optical device mounting part and the interface part, one end of the spring abuts against the limiting column, and the other end of the spring abuts against the groove wall of the spring mounting groove.

17. The optical module according to claim 15 or 16, characterized in that: The optical module further comprises a bottom plate, the bottom plate is covered on the notch of the slide slot, and the bottom plate is fixedly connected to the housing.

18. An optical line terminal device, characterized in that: The optical module comprises a single board and the optical module according to any one of claims 1 to 17, wherein the optical module is electrically connected to the single board.

19. An optical communication system, characterized in that: The optical communication system comprises an optical network unit and the optical line terminal device according to claim 18, wherein the optical line terminal device is connected to the optical network unit via a passive optical distribution network device.

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