An active module

Abstract

This application discloses an active module, relating to the field of optical communication technology, which solves the problem of difficult fiber coiling and arrangement in optical modules. The active module includes a housing and a conversion component. The conversion component, fixed inside the housing, is used for the mutual conversion between optical and electrical signals. The conversion component includes an optical fiber for transmitting optical signals. It also includes a fiber coiling frame, disposed inside the housing, with fiber routing slots through which the optical fibers pass. The active module of this application is used for the conversion between electrical and optical signals.

Description

Technical Field

[0001] The embodiments of this application relate to, but are not limited to, the field of optical communication, and particularly to an active module. Background Technology

[0002] With the rapid development of optical communication and the Internet in recent years, market demand for networks has surged, leading to a rapid increase in traffic on telecommunications backbone networks. To meet the market's demand for high-speed data transmission, the transmission speed of optical modules is also rapidly increasing. The power consumption, functionality, and performance requirements of optical modules are placing increasingly higher demands on their design and production, resulting in a growing variety of optoelectronic solutions. The connection methods between optical devices and hardware circuits, as well as the internal structure and design of optical modules, are becoming increasingly diverse.

[0003] In recent years, PAM4-modulated digital signal processing (DSP) units have increasingly become standard hardware components in optical modules with speeds of 200G, 400G, and 800G and above. Furthermore, large-size integrated optical devices that combine transmission and reception in pigtail form are also being used in modules, placed on printed circuit boards (PCBs) via dedicated electrical connections. Within the limited internal space of these modules, addressing the complex fiber coiling paths and ensuring fiber protection has become a pressing issue. Summary of the Invention

[0004] The embodiments of this application provide an active module, which facilitates fiber coiling and has a reasonable layout.

[0005] This application provides an active module, including a housing and a conversion component. The conversion component is fixed inside the housing and is used for mutual conversion between optical signals and electrical signals. The conversion component includes an optical fiber for transmitting optical signals. It also includes a fiber tray, which is disposed inside the housing. The fiber tray has fiber routing slots, and the optical fiber passes through the fiber routing slots.

[0006] The active module provided in this application embodiment has an outer shell that protects the internal conversion components and fiber optic coil, and also prevents some dust from entering, thereby improving the service life of the internal conversion components. The fiber optic coil has fiber routing grooves, in which optical fibers are placed. The groove walls effectively limit the radial direction of the optical fibers, allowing them to be coiled in a preset manner, avoiding entanglement with other devices. At the same time, the groove walls also protect the optical fibers, preventing them from being squeezed by other components, thus ensuring the transmission of optical signals and making the fiber routing neater and more aesthetically pleasing. Compared with related technologies that do not have fiber optic coils, the active module of this application, due to the fiber optic coil with fiber routing grooves, can effectively limit the optical fiber path and protect the optical fibers from compression.

[0007] In one possible implementation of this application, the fiber routing groove is provided along the edge of the fiber tray.

[0008] The active module provided in this application embodiment is designed to place the longest possible optical fiber into the fiber routing slot, with the fiber routing slot set along the edge of the fiber tray to maximize the length of the fiber routing slot. This facilitates the limiting of longer optical fibers, while leaving the middle of the fiber routing slot empty to facilitate the setting of other structures.

[0009] In one possible implementation of this application, the included angle of the channel wall at the corner of the fiber optic cable is an obtuse angle.

[0010] The active module provided in this application embodiment sets the corner of the fiber routing channel to an obtuse angle to prevent the optical fiber from being broken due to excessive bending. This makes the bending of the optical fiber smoother, thereby avoiding breakage. At the same time, it also increases the bending radius of the optical fiber, thereby reducing bending loss and ensuring the transmission of optical signals.

[0011] In one possible implementation of this application, multiple anti-detachment strips are provided along the fiber optic cable tray. The two ends of the anti-detachment strips are fixed to the tray walls on both sides of the cable tray to form a radially closed cavity through which the optical fiber passes.

[0012] The active module provided in this application embodiment, in order to prevent the optical fiber from coming out of the fiber routing groove, has an anti-loosening strip set along the fiber routing groove. A cavity is formed between the anti-loosening strip and the groove wall. The cavity can fully limit the optical fiber in the radial direction, thereby preventing the optical fiber from sliding out of the fiber routing groove and further improving the fiber coiling effect of the fiber coiling frame.

[0013] In one possible implementation of this application, the fiber tray has a fiber threading notch corresponding to the anti-detachment strip. One end of the anti-detachment strip in the fiber threading notch is fixed to the wall of the fiber channel, and the other end extends and bends into a hook-shaped structure towards the bottom of the fiber channel.

[0014] The active module provided in this application embodiment enables fiber threading without cutting off the devices connected to the fiber end. The fiber coil has a threading notch at the anti-detachment strip, and a hook-shaped anti-detachment strip is provided at the threading notch. During threading, the fiber can be placed into the fiber routing groove through the threading notch without threading the fiber through the end of the connecting device. This avoids the problem that the end device is too large to thread and the fiber needs to be cut off. At the same time, since the hook-shaped structure and the fiber routing groove can limit the fiber from different radial directions, it can also ensure that the fiber does not come out of the fiber routing groove.

[0015] In one possible implementation of this application, the conversion component includes a group of optoelectronic devices, a fiber optic tray with a limiting groove corresponding to the position of the optoelectronic device group, the optoelectronic device group being located in the limiting groove, and the outline of the optoelectronic device group matching the outline of the limiting groove.

[0016] The active module provided in this application provides a limiting groove on the fiber optic cable to fix the fiber optic cable and cooperates with the optoelectronic device group in the conversion component. The device in the optoelectronic device group limits the fiber optic cable and prevents the fiber optic cable from sliding radially in the limiting groove.

[0017] In one possible implementation of this application, the fiber tray further includes reinforcing ribs, both ends of which are fixed to the groove wall of the limiting groove.

[0018] In order to increase the structural strength of the fiber coiling frame, the active module provided in this application embodiment has reinforcing ribs in the limiting groove. The reinforcing ribs support the groove wall of the limiting groove, thereby avoiding the problem that the groove wall will bend and deform due to external force, which would affect the fiber coiling path.

[0019] In one possible implementation of this application, the fiber tray includes a conventional section, and the fiber routing groove of the conventional section is located on the side of the fiber tray away from the conversion component.

[0020] The active module provided in this application embodiment facilitates fiber coiling. In the conventional section of the fiber coiling rack, the fiber routing groove is opened on the side of the fiber coiling rack away from the conversion component. This allows for more intuitive fiber coiling and enables constant observation of the fiber status during fiber coiling rack installation, preventing the fiber from being squeezed.

[0021] In one possible implementation of this application, the regular section is connected to an avoidance section, the avoidance section and the regular section are staggered, and the avoidance section is farther away from the conversion component relative to the regular section. The fiber routing groove of the avoidance section is opened on the side of the fiber tray close to the conversion component to adapt to the outline of the housing and the conversion component.

[0022] The active module provided in this application embodiment has a clearance section that is offset from the conventional section in order to adapt to the concave part of the shell and the corresponding conversion component. The clearance section is higher than the conversion component, so it will not affect the conversion component. The fiber routing groove of the clearance section is set opposite to the fiber routing groove of the conventional section, so that the transition of the optical fiber at the conventional section and the clearance section is more natural and smoother.

[0023] In one possible implementation of this application, a positioning post is provided on the side of the fiber tray near the conversion component, and a positioning groove is opened on the conversion component corresponding to the position of the positioning post, with the positioning post cooperating with the positioning groove.

[0024] In order to fix the fiber optic cable, the active module provided in this application embodiment has a positioning post on the fiber optic cable. The positioning post cooperates with the positioning groove of the conversion component, so that the fiber optic cable and the conversion component are relatively fixed, avoiding the disturbance of the optical fiber caused by the displacement of the two.

[0025] In one possible implementation of this application, the conversion component includes a motherboard and a daughterboard, both of which are electrically connected to the motherboard, and the optoelectronic device group is fixed to the motherboard.

[0026] The active module provided in this application provides a circuit board divided into a sub-board and a main board to facilitate the layout of the components in the conversion assembly. Larger components such as the optoelectronic device group are arranged on the main board, and the height difference between adjacent components is balanced, making the whole more coordinated and making full use of the limited space inside the casing.

[0027] In one possible implementation of this application, an elastic element is fixed inside the housing at the position corresponding to the fiber optic coil, and the elastic element abuts against the side of the fiber optic coil away from the conversion component.

[0028] The active module provided in this application embodiment has an elastic element inside the housing to facilitate the fixing of the fiber coil. The elastic force of the elastic element can press the fiber coil onto the conversion component, thereby avoiding relative displacement between the fiber coil and the conversion component, which would affect the fiber coiling. Attached Figure Description

[0029] Figure 1 An exploded view of an active module provided in an embodiment of this application;

[0030] Figure 2 Overall view of the active module provided in the embodiments of this application Figure 1 ;

[0031] Figure 3 Overall view of the active module provided in the embodiments of this application Figure 2 ;

[0032] Figure 4 A schematic diagram of the base structure of the active module provided in the embodiments of this application;

[0033] Figure 5 A schematic diagram of the upper cover structure of the active module provided in an embodiment of this application;

[0034] Figure 6 A schematic diagram of the conversion component structure of the active module provided in the embodiments of this application;

[0035] Figure 7 Schematic diagram of the fiber optic tray structure of the active module provided in the embodiments of this application Figure 1 ;

[0036] Figure 8 Schematic diagram of the fiber optic tray structure of the active module provided in the embodiments of this application Figure 2 ;

[0037] Figure 9 Schematic diagram of the fiber optic tray structure of the active module provided in the embodiments of this application Figure 3 ;

[0038] Figure 10 A schematic diagram of the motherboard structure of the active module provided in the embodiments of this application;

[0039] Figure 11 This is a schematic diagram of the sub-board structure of the active module provided in an embodiment of this application.

[0040] Figure label:

[0041] 1-Outer shell; 11-Base support; 111-Through hole; 112-First adapter slot; 113-First positioning boss; 114-Second positioning boss; 115-First support boss; 116-Second support boss; 12-Top cover; 121-Threaded hole; 122-Heat sink; 123-Second adapter slot; 2-Conversion assembly; 21-Fiber optic cable; 22-Optical port adapter; 23-Optoelectronic device group; 231-Signal processor; 232-Optical device; 233-Laser; 24-Main board; 241-Electrical interface; 242-First positioning notch ; 243-Positioning boss notch; 244-Positioning groove; 25-Subplate; 251-Allowing notch; 252-Second positioning notch; 3-Fiber coil frame; 31-Fiber routing groove; 32-Fiber coil angle; 33-Anti-detachment strip; 34-Cavity; 35-Fiber threading notch; 36-Limiting groove; 361-First groove; 362-Second groove; 363-Third groove; 37-Reinforcing rib; 371-First rib; 372-Second rib; 3721-Allowing groove; 38-Positioning post; 4-Elastic element; 5-Heat conductive pad; 6-Screw; 7-Pull ring. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0043] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0044] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0045] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0046] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0047] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0048] This application provides an active module for converting optical signals to electrical signals in an optical communication system. It can receive optical signals, convert them into electrical signals, and then output them. Alternatively, it can input electrical signals and then convert them into optical signals for output. It is commonly used in devices such as switches and fiber optic routers.

[0049] Reference Figure 1 The active module provided in this application embodiment includes a housing 1 and a conversion component 2. The conversion component 2 is fixed inside the housing 1 and is used for mutual conversion between optical signals and electrical signals. The housing 1 provides protection for the internal conversion component 2 and has a certain dustproof function, thereby improving the service life of the internal conversion component 2.

[0050] It should be noted that the outer shell 1 can take many forms; any shell structure that is easy to assemble and disassemble is within the scope of protection of this application, such as: a columnar shell with open ends, or an interlocking assembled shell, etc. (See reference...) Figure 2 and Figure 3 In one embodiment of this application, the housing includes a base 11 and a top cover 12. The base 11 and the top cover 12 each have an inner cavity on one side close to each other. The two can be fastened together to form a long columnar structure, and openings are left at both ends to facilitate communication between the conversion component 2 and the outside.

[0051] The upper cover 12 and the bottom support 11, once snapped together, can be fixed by a snap-fit ​​mechanism or by using fasteners, as shown in the reference. Figure 2 and Figure 4 For example, screws 6 are used for fastening. The base 11 has three through holes 111. The through holes 111 are countersunk at one end of the outer side of the base 11 to facilitate the placement of the screw 6 nuts. The three through holes 111 are arranged in an isosceles triangle. The top cover 12 has corresponding threaded holes 121 at the positions of the through holes 111. The screws 6 pass through the through holes 111 and are threaded into the threaded holes 121, thereby locking the base 11 and the top cover 12. The screw connection allows for easy disassembly of the outer shell 1, facilitating maintenance of the conversion component 2. At the same time, the threaded connection has the advantages of convenient installation and high connection strength.

[0052] Reference Figure 1 and Figure 7 The conversion component 2 provided in this application includes an optical fiber 21 for transmitting optical signals. A fiber coiling frame 3 is provided inside the housing 1, and the fiber coiling frame 3 has a fiber routing groove 31 in which the optical fiber 21 passes. The groove wall of the fiber routing groove 31 effectively limits the radial direction of the optical fiber 21, allowing the optical fiber 21 to be coiled in a preset manner, avoiding entanglement with other devices. Simultaneously, the groove wall of the fiber routing groove 31 also protects the optical fiber 21 from being squeezed by other components, thus ensuring the transmission of optical signals and making the fiber routing neater and more aesthetically pleasing. Compared to related technologies that do not include a fiber coiling frame 3, the active module of this application, due to the fiber coiling frame 3 with the fiber routing groove 31, can effectively limit the path of the optical fiber 21 and protect it from compression.

[0053] It should be noted that the cross-section of the fiber channel 31 can have various shapes, such as square, U-shaped, arc-shaped, etc., see reference. Figure 7 , Figure 8 and Figure 9 In one embodiment of this application, the cross-sectional shape of the fiber optic cable 31 is square, which can accommodate multiple optical fibers 21 at the same time. Specifically, the conversion component 2 includes two optical fibers 21.

[0054] In order to place the longest possible fiber optic cable 21 into the fiber routing slot 31, refer to Figure 7 , Figure 8 and Figure 9 In one embodiment of this application, the fiber routing groove 31 is arranged along the edge of the fiber tray 3, maximizing the length of the fiber routing groove 31, thereby facilitating the restraint of longer optical fibers 21, while leaving the middle part of the fiber routing groove 31 empty to facilitate the setting of other structures. Specifically, the fiber routing groove 31 is generally U-shaped, with its two ends corresponding to the two ends of the optical fiber 21, so that the optical fiber 21 can be connected to the corresponding device.

[0055] Reference Figure 6 One end of fiber optic cable 21 is connected to an optical port adapter 22 for optical communication with the outside world. For details, please refer to... Figure 4 and Figure 5 Both optical fibers 21 are connected to optical port adapters 22. The two optical port adapters 22 are arranged in parallel. The bottom support 11 and the top cover 12 are respectively provided with a first adapter slot 112 and a second adapter slot 123 corresponding to the position of the optical port adapters 22. The optical port adapters 22 are snapped into the adapter slots.

[0056] To prevent fiber optic cable 21 from breaking due to excessive bending, refer to... Figure 7 , Figure 8 and Figure 9 In one embodiment of this application, the included angle of the channel wall at the corner of the fiber optic cable 31 is an obtuse angle, which makes the transition of the optical fiber 21 more gradual, thereby avoiding breakage. At the same time, it also increases the bending radius of the optical fiber 21, thereby reducing bending loss and ensuring the transmission of optical signals.

[0057] It should be noted that various structures can be used at the corners of the fiber optic cable tray 31, such as: minor arc transition, multi-angle continuous transition, etc., see reference. Figure 7 , Figure 8 and Figure 9 In one embodiment of this application, the corner wall of the fiber routing groove 31 has two consecutive obtuse angle bends, forming a bevel-like fiber coiling angle 32, thereby making the turning transition of the optical fiber 21 smoother.

[0058] To prevent fiber 21 from coming out of the fiber routing slot 31, refer to Figure 7In one embodiment of this application, the fiber routing groove 31 is provided with multiple anti-detachment strips 33 along its line. The two ends of the anti-detachment strips 33 are respectively fixed to the groove walls on both sides of the routing groove to form a radially closed cavity 34 through which the optical fiber 21 passes. The cavity 34 can fully limit the optical fiber 21 in the radial direction, thereby preventing the optical fiber 21 from slipping out of the fiber routing groove 31 and further improving the fiber coiling effect of the fiber coiling frame 3.

[0059] In order to achieve fiber threading without cutting off the devices connected to the end of fiber 21, refer to Figure 8 and Figure 9 In one embodiment of this application, the fiber tray 3 has a fiber threading notch 35 corresponding to the anti-detachment strip 33. One end of the anti-detachment strip 33 in the fiber threading notch 35 is fixed to the wall of the fiber channel 31, and the other end extends and bends into a hook-shaped structure towards the bottom of the fiber channel 31. When threading the fiber, the optical fiber 21 can be placed into the fiber channel 31 through the fiber threading notch 35 without using the end of the connector to thread the fiber. This avoids the problem that the end device is too large and cannot be threaded, thus requiring the optical fiber 21 to be cut off. At the same time, since the hook-shaped structure and the fiber channel 31 can limit the optical fiber 21 from different radial directions, it can also ensure that the optical fiber 21 does not come out of the fiber channel 31.

[0060] To secure the fiber optic cable holder 3, refer to... Figure 1 and Figure 6 In one embodiment of this application, the conversion component 2 includes a photoelectric device group 23. A limiting groove 36 is formed in the fiber optic cable 3 corresponding to the position of the photoelectric device group 23. The photoelectric device group 23 is located within the limiting groove 36, and the contour of the photoelectric device group 23 matches the contour of the limiting groove 36. This limits the fiber optic cable 3 by means of the devices in the photoelectric device group 23, preventing the fiber optic cable 3 from slipping radially in the limiting groove 36.

[0061] Reference Figure 6 The optoelectronic device group 23 includes a signal processor 231, specifically a digital signal processing (DSP) device. The optoelectronic device group 23 also includes an optical device 232 and a laser 233. The end of the optical fiber 21 away from the optical port adapter 22 is connected to the outlet of the optical device 232. The laser 233, the optical device 232, and the signal processor 231 are arranged in sequence along the direction away from the optical port adapter 22.

[0062] To increase the structural strength of the fiber tray 3, refer to Figure 7 , Figure 8 and Figure 9 In one embodiment of this application, the fiber tray 3 further includes reinforcing ribs 37, both ends of which are fixed to the wall of the limiting groove 36. The reinforcing ribs 37 support the wall of the limiting groove 36, thereby preventing the wall from bending and deforming due to external forces, which would affect the fiber tray path of the optical fiber 21.

[0063] It should be noted that reinforcing ribs 37 can be configured in various ways, such as intersecting or parallel configurations. (Refer to...) Figure 7 , Figure 8 and Figure 9 In one embodiment of this application, the fiber optic cable holder 3 includes two parallel reinforcing ribs 37, namely a first rib 371 and a second rib 372. The first rib 371 is disposed between the signal processor 231 and the optical device 232, dividing the limiting groove 36 into a first groove 361 and a second groove 362. The first groove 361 corresponds to the signal processor 231, and the second groove 362 corresponds to the optical device 232. The second rib 372 is disposed between the optical device 232 and the laser 233, dividing the limiting groove 36 into a second groove 362 and a third groove 363. The third groove 363 corresponds to the laser 233. The second rib 372 has a clearance groove 3721 at the outlet position of the optical device 232 to avoid the outlet of the optical device 232.

[0064] For easier fiber coiling, refer to Figure 7 , Figure 8 and Figure 9 In one embodiment of this application, the fiber coiling frame 3 includes a conventional section, with the fiber routing groove 31 of the conventional section located on the side of the fiber coiling frame 3 away from the conversion component 2. This allows for more intuitive fiber coiling and enables constant observation of the optical fiber 21's status during installation of the fiber coiling frame 3, preventing compression of the optical fiber 21. Correspondingly, the anti-detachment strip 33 and the fiber threading notch 35 are both located in the conventional section.

[0065] Reference Figure 2 and Figure 3 It should be noted that the middle of both sides of the outer shell 1 has an inward recess, and the recess of the outer shell 1 corresponds to the optical device 232 inside it. Since the fiber optic cable 3 is sleeved on the optical device 232 through the second groove 362, the corresponding position of the fiber optic cable 3 also needs to be provided with a corresponding avoidance structure.

[0066] To accommodate the recessed portion of the outer casing 1 and the corresponding optical device 232, refer to Figure 7 , Figure 8 and Figure 9 In one embodiment of this application, a clearance section is connected to the regular section. The clearance section is staggered with the regular section and is farther away from the conversion component 2 relative to the regular section. The fiber routing groove 31 of the clearance section is opened on the side of the fiber tray 3 near the conversion component 2 to adapt to the outline of the housing 1 and the conversion component 2. The clearance section is higher than the conversion component 2, so it will not affect the conversion component 2. The fiber routing groove 31 of the clearance section is opposite to the fiber routing groove 31 of the regular section, so that the transition of the optical fiber 21 between the regular section and the clearance section is more natural and smoother.

[0067] To facilitate the layout of the components in component 2, refer to Figure 1 and Figure 7 In one embodiment of this application, the conversion component 2 includes a main board 24 and a daughter board 25. The optoelectronic device group 23 and the daughter board 25 are both electrically connected to the main board 24, and the optoelectronic device group 23 is fixed to the main board 24. The devices in the optoelectronic device group 23 are typically large in size, and the projected area of ​​these devices on the circuit board is typically greater than 150 square millimeters. These larger devices are all arranged on the main board 24, and the height difference between adjacent components is balanced, making the overall design more coordinated and making full use of the limited space within the housing 1.

[0068] Both the motherboard 24 and the daughterboard 25 are circuit boards, as shown in the reference. Figure 11 The main board 24 is rectangular. The optoelectronic device group 23, namely the signal processor 231, optical device 232, and laser 233, is fixed and electrically connected to the main board 24 by means of insertion, soldering, etc. The daughter board 25 is smaller than the main board 24, and has a clearance notch 251 on one side to facilitate the installation of the laser 233. The daughter board 25 is equipped with relevant components for driving the operation of this device. The daughter board 25 and the main board 24 can be electrically connected by means of ribbon cable, etc. The daughter board 25 is located between the optical device 232 and the optical port adapter 22, and the optical fiber 21 passes through the space between the daughter board 25 and the main board 24.

[0069] In addition, refer to Figure 10 The motherboard 24 also includes an electrical interface 241, which is integrated on the motherboard 24 in the form of a gold finger (connecting finger, CF). Specifically, the gold finger is located at the end of the motherboard 24 away from the optical port adapter 22, and the gold finger part extends out of the housing 1 to connect with the corresponding device.

[0070] To achieve the positioning of the motherboard 24 within the casing, refer to... Figure 4 and Figure 10 In one embodiment of this application, the motherboard 24 is fixed to the base 11. Specifically, the motherboard 24 includes a first positioning notch 242, which is located near the gold fingers. There are two first positioning notches 242, which are symmetrically distributed on both sides of the motherboard 24. The first positioning notch 242 is a U-shaped notch. The base 11 is integrally provided with a first positioning boss 113 corresponding to the position of the first positioning notch 242. The first positioning boss 113 can be engaged in the first positioning notch 242, thereby preventing the motherboard 24 from sliding relative to the base 11 along its own extension direction. It should be noted that two of the three through holes 111 are correspondingly opened on the two first positioning bosses 113, thereby increasing the length of the through holes 111 and improving the strength of the threaded connection.

[0071] In addition, refer to Figure 4 and Figure 11In one embodiment of this application, the sub-plate 25 is also fixed to the base 11. Specifically, the sub-plate 25 has a second positioning notch 252 on the side away from the avoidance notch 251. The second positioning notch 252 is arc-shaped. The base 11 is integrally provided with a second positioning boss 114 corresponding to the second positioning notch 252. The second positioning boss 114 cooperates with the second positioning notch 252. The base 11 is also integrally provided with a first support boss 115. There are two first support bosses 115, which are symmetrically arranged. The sub-plate 25 is placed on the first support bosses 115. The first support bosses 115 can lift the sub-plate 25 to a certain height, leaving a certain heat dissipation and ventilation space between the sub-plate 25 and the main board 24. It can also limit the sub-plate 25 like the second positioning bosses 114, thereby preventing the sub-plate 25 from sliding relative to the base 11 along its own extension direction.

[0072] It should be noted that, in order for the second positioning boss 114 to pass through the motherboard 24 and limit the position of the sub-board 25, refer to... Figure 10 In one embodiment of this application, the motherboard 24 is provided with a positioning boss notch 243 corresponding to the second positioning boss 114. The second positioning boss 114 also cooperates with the positioning boss notch 243 to further enhance the limiting effect of the base support 11 on the motherboard 24.

[0073] To facilitate heat dissipation for the motherboard 24, refer to... Figure 4 In one embodiment of this application, the base 11 is provided with second support protrusions 116 at each of the four corners of the motherboard 24. The motherboard 24 is placed in the second support protrusions 116, thereby leaving a certain space between the back of the motherboard 24 and the base 11, which facilitates heat dissipation and also avoids short circuits at the solder joints on the back of the motherboard 24.

[0074] To secure the fiber optic cable holder 3, refer to... Figure 7 , Figure 8 and Figure 9 In one embodiment of this application, the fiber optic tray 3 is provided with a positioning post 38 on the side near the conversion component 2, as shown in the reference. Figure 10 The conversion component 2 has a positioning groove 244 at the position corresponding to the positioning post 38. Specifically, the main board 24 in the conversion component 2 has a positioning groove 244. The positioning post 38 cooperates with the positioning groove 244, thereby fixing the fiber tray 3 and the conversion component 2 relatively, avoiding the disturbance of the optical fiber 21 caused by the displacement of the two.

[0075] The positioning posts 38 can have various shapes, such as square, round, or elliptical. The number and position of the positioning posts 38 can also be arranged in various ways. Any arrangement that can limit the radial sliding of the fiber tray 3 relative to the main board 24 is within the protection scope of this application. (Refer to...) Figure 7 , Figure 8 , Figure 9 and Figure 10In one embodiment of this application, there are two positioning posts 38, symmetrically distributed on both sides of the fiber optic tray 3, and the positioning posts 38 have chamfers of corresponding size corresponding to the recesses of the outer shell 1. Two positioning grooves 244 are opened on both sides of the main board 24, and the positioning grooves 244 have a certain length, so that the positioning posts 38 can slide along the length direction of the main board 24 in the positioning grooves 244, leaving a certain adjustment space to avoid the situation that the fiber optic tray 3 is difficult to match with the positioning grooves 244 when it is installed to adapt to the optoelectronic device group 23.

[0076] To facilitate the fixing of the fiber optic cable holder 3, refer to... Figure 5 In one embodiment of this application, an elastic element 4 is fixed inside the outer casing 1 at the position corresponding to the fiber coil 3. Specifically, the elastic element 4 is a spring sheet, fixed inside the upper cover 12, and abuts against the side of the fiber coil 3 away from the conversion component 2. The elastic force of the elastic element 4 can press the fiber coil 3 tightly onto the conversion component 2, thereby preventing relative displacement between the fiber coil 3 and the conversion component 2, which would affect the coiling of the optical fiber 21.

[0077] In addition, to facilitate heat dissipation of the various devices in the optoelectronic device group 23, refer to Figure 5 In one embodiment of this application, thermal pads 5 are fixed inside the upper cover 12 at the positions corresponding to the signal processor 231, optical device 232, and laser 233. The thermal pads 5 can be made of thermally conductive silicone, thermally conductive ceramic, or other materials. The thermal pads 5 are attached to the upper surface of each component and can quickly transfer the heat generated by the component to the upper cover 12 and dissipate it through the outer shell 1. In addition, heat dissipation fins 122 are provided on the outside of the upper cover 12 to improve heat dissipation efficiency.

[0078] To facilitate the insertion and removal of the active module in this application, refer to Figure 1 , Figure 2 and Figure 3 In one embodiment of this application, a pull ring 7 is connected to one end of the base 11 near the optical port adapter 22. The pull ring 7 extends to the recess of the outer shell 1 on both sides and cooperates with it. The user can easily separate the module from the corresponding interface by pulling the pull ring 7.

[0079] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An active module, characterized by include: shell; A conversion component, fixed inside the housing, is used for the mutual conversion of optical signals and electrical signals. The conversion component includes an optical fiber for transmitting optical signals. A fiber tray is disposed inside the housing, and the fiber tray has a fiber channel, through which the optical fiber passes. The corner of the fiber optic cable is chamfered; The fiber routing groove is provided with multiple anti-detachment strips along its line. The two ends of the anti-detachment strips are fixed to the groove walls on both sides of the fiber routing groove to form a radially closed cavity through which the optical fiber passes. The fiber tray has a fiber threading notch corresponding to the anti-detachment strip. One end of the anti-detachment strip in the fiber threading notch is fixed to the wall of the fiber channel, and the other end extends and bends into a hook-shaped structure towards the bottom of the fiber channel. The fiber tray includes a conventional section, and the fiber routing groove of the conventional section is located on the side of the fiber tray away from the conversion component; The regular section is connected to an avoidance section, which is staggered with the regular section and is located away from the conversion component relative to the regular section, so as to be higher than the conversion component. The fiber routing groove of the avoidance section is opened on the side of the fiber tray near the conversion component to adapt to the outline of the housing and the conversion component. The fiber routing groove of the avoidance section is arranged opposite to the fiber routing groove of the regular section. The conversion component includes an optoelectronic device group, which includes a signal processor, optical devices, and a laser. The outer casing includes a base and a top cover that interlock with each other. Inside the top cover, thermal pads are fixed at positions corresponding to the signal processor, the optical device, and the laser. The signal processor, the optical device, the laser, and the corresponding thermal pads are attached to each other.

2. The active module according to claim 1, characterized in that, The fiber routing groove is provided along the edge of the fiber tray.

3. The active module according to claim 1, characterized in that, The fiber tray has a limiting groove corresponding to the position of the optoelectronic device group. The optoelectronic device group is located in the limiting groove, and the outline of the optoelectronic device group matches the outline of the limiting groove.

4. The active module according to claim 3, characterized in that, The fiber tray also includes reinforcing ribs, both ends of which are fixed to the groove wall of the limiting groove.

5. The active module according to claim 1, characterized in that, The fiber tray has a positioning post on the side near the conversion component, and the conversion component has a positioning groove corresponding to the position of the positioning post, and the positioning post cooperates with the positioning groove.

6. The active module according to claim 3, characterized in that, The conversion assembly includes a motherboard and a daughterboard. The optoelectronic device group and the daughterboard are both electrically connected to the motherboard, and the optoelectronic device group is fixed to the motherboard.

7. The active module according to claim 1, wherein an elastic element is fixed inside the housing corresponding to the position of the fiber optic coil, and the elastic element abuts against the side of the fiber optic coil away from the conversion component.

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