A multi-channel fiber optic wavelength division multiplexer in a high-speed optical module

Abstract

The present invention relates to the technical field of wavelength division multiplexers, and discloses a multi-channel fiber optic wavelength division multiplexer in a high-speed optical module, which includes a protective case. A lifting frame is fixedly connected to the lower surface of the protective case, and a wiring terminal is fixedly connected to the protective case through a front end cover plate provided on its outer surface. Among them, the wiring terminal includes an interface shell. The open end of the interface shell is fixedly connected to the front end cover plate, and a sliding seat is slidably connected to the interface shell through a slide rail opened at the bottom of its inner wall. The multi-channel fiber optic wavelength division multiplexer in the high-speed optical module can effectively solve the problem that it is difficult to ensure that the external optical fiber reaches an accurate vertical state during insertion, and the front end of the external optical fiber is easily physically damaged during the docking process, such as scratches and abrasions. These physical damages may weaken the stability of the optical fiber connection, make it more sensitive to external vibrations, and further increase the risk of connection loosening or even breaking.

Description

Technical Field

[0001] The present invention relates to the technical field of wavelength division multiplexers, and particularly to a multi-channel fiber optic wavelength division multiplexer in a high-speed optical module. Background Art

[0002] A wavelength division multiplexer is a key device used in fiber optic communication systems. Its main function is to simultaneously transmit multiple optical signals of different wavelengths in a single optical fiber, thereby greatly increasing the transmission capacity of the optical fiber. It can increase the available bandwidth of the optical fiber, allowing for capacity expansion without laying more optical fibers, thus improving the speed, capacity, and reliability of fiber optic communication. It is widely used in fields such as data center interconnection, metropolitan area optical transport networks, and telecommunication networks.

[0003] In the prior art, the fiber optic interface is an important component of the wavelength division multiplexer for connecting the input and output optical fibers. Since it is difficult to ensure that the external optical fiber is in an exact vertical state when inserted, the front end of the external optical fiber is prone to physical damage during the docking process, such as scratches and abrasions. These physical damages may weaken the stability of the fiber optic connection, making it more sensitive to external vibrations, and further increasing the risk of connection loosening or even breaking. Summary of the Invention

[0004] Technical Problem to be Solved

[0005] Aiming at the above-mentioned drawbacks of the prior art, the present invention provides a multi-channel fiber optic wavelength division multiplexer in a high-speed optical module, which can effectively solve the problems in the prior art that it is difficult to ensure that the external optical fiber is in an exact vertical state when inserted, the front end of the external optical fiber is prone to physical damage during the docking process, such as scratches and abrasions. These physical damages may weaken the stability of the fiber optic connection, making it more sensitive to external vibrations, and further increasing the risk of connection loosening or even breaking.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] The present invention provides a multi-channel fiber optic wavelength division multiplexer in a high-speed optical module, including:

[0009] A protective case, the lower surface of the protective case is fixedly connected with a lifting frame, and the protective case is fixedly connected with a wiring terminal through a front end cover plate provided on its outer surface;

[0010] Among them, the wiring terminal includes an interface shell. The open end of the interface shell is fixedly connected to the front end sealing plate. The interface shell is slidably connected with a sliding seat through a slide rail opened at the bottom of its inner wall. A limiting groove is opened on the lower surface of the sliding seat, and a trapezoidal groove is opened on the lower surface of the interface shell. A limiting mechanism for fixing the sliding seat is arranged inside the trapezoidal groove;

[0011] Among them, a guide post is fixedly communicated with one side of the interface shell far away from the front end sealing plate, and a pressing member is arranged inside the circumference of the guide post.

[0012] Furthermore, the limiting mechanism includes a limiting plate. A compression spring is connected to the trapezoidal groove through the limiting plate arranged inside it. One end of the compression spring far away from the limiting plate is connected with a buckle, and an adjusting member is arranged on the lower surface of the buckle.

[0013] Furthermore, the adjusting member includes an axial rod. The top end of the axial rod is fixedly connected to the lower surface of the buckle. The bottom end of the axial rod penetrates through the protective shell and extends to the outside of the protective shell, and a pull ring is fixedly connected to the bottom end of the axial rod. The axial rod is slidably connected with a pull rod through a chute opened on the outer surface of its circumference.

[0014] Furthermore, the outer surface of the buckle is designed with an arc surface, and one side of the sliding seat close to the guide post is designed with an arc surface.

[0015] Furthermore, the pressing member includes a connecting column. The outer surface of the circumference of the connecting column is fitted with the inner wall of the guide post. One end of the connecting column close to the sliding seat is fixedly connected with a pressing plate. A spring is connected between the adjacent surfaces of the pressing plate and the guide post, and the spring is sleeved on the outer surface of the circumference of the connecting column.

[0016] Furthermore, a tapered groove is opened on one side of the connecting column close to the sliding seat.

[0017] Furthermore, an annular plate is fixedly connected to the outer surface of the circumference of the connecting column. The guide post is slidably connected with a threaded rod through a sliding cavity opened in it. One end of the threaded rod far away from the pressing plate penetrates through the annular plate and extends to the outside of the annular plate. A bolt meshing with the threaded rod is arranged on one side of the annular plate far away from the guide post.

[0018] Beneficial effects

[0019] The technical solution provided by the present invention has the following beneficial effects compared with the prior art:

[0020] The present invention is provided with a sliding seat, an interface shell and a limiting mechanism. The sliding seat and the interface shell adopt a drawer-type pull-out structure. During use, the sliding seat is slid out inside the interface shell. First, the external optical fiber jumper port is placed inside the sliding seat, and then it slides into the interface shell along with the sliding seat to be connected to the connecting column and the conical groove, avoiding physical damage to the external optical fiber jumper port during blind insertion, such as scratches or contamination. Physical damage may make the optical fiber connection unstable and vulnerable to external vibration, resulting in loose or disconnected connections. At the same time, the limiting mechanism can tightly fit the sliding seat and the interface shell and then clamp and fix them. The wiring terminal is fixed in all directions by the limiting mechanism, the sliding seat and the interface shell, and will not be affected by dragging, vibration, etc., causing the external optical fiber jumper and the wiring terminal to become loose or detached. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0023] Figure 2 is a structural schematic diagram of the front end cover plate and the wiring terminal of an embodiment of the present invention;

[0024] Figure 3 is a sectional structural schematic diagram of the wiring terminal of an embodiment of the present invention;

[0025] Figure 4 is a three-dimensional structural schematic diagram of the wiring terminal of an embodiment of the present invention;

[0026] Figure 5 is a sectional structural schematic diagram of the wiring terminal of an embodiment of the present invention from another perspective;

[0027] Figure 6 is an embodiment of the present invention Figure 5 is a schematic diagram of the partial enlargement at A in the middle;

[0028] Figure 7 is a structural schematic diagram of the pressing member of an embodiment of the present invention;

[0029] Figure 8 is a structural schematic diagram of the adjusting member of an embodiment of the present invention.

[0030] The reference numerals in the figure respectively represent: 1. protective case; 11. elevation frame; 12. front end sealing plate; 2. terminal; 21. interface housing; 211. trapezoidal groove; 212. guide post; 22. sliding seat; 221. limiting groove; 23. limiting mechanism; 231. limiting plate; 232. compression spring; 233. buckle; 24. pressing member; 241. connecting column; 2411. tapered groove; 242. pressing plate; 243. spring; 244. annular plate; 245. sliding cavity; 246. threaded rod; 25. adjusting member; 251. axial rod; 252. pull ring; 253. pull rod. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] The present invention will be further described below with reference to the embodiments.

[0033] Embodiment:

[0034] Please refer to Figures 1-8 , the present invention provides a technical solution: a multi-channel fiber optic wavelength division multiplexer in a high-speed optical module, including:

[0035] A protective case 1, the lower surface of the protective case 1 is fixedly connected with an elevation frame 11, and the protective case 1 is fixedly connected with a terminal 2 through a front end sealing plate 12 provided on its outer surface; a plurality of terminals 2 are provided, and the terminals 2 are divided into a connection input end and a connection output end for connecting external optical fiber jumpers.

[0036] Among them, the terminal 2 includes an interface housing 21, the open end of the interface housing 21 is fixedly connected with the front end sealing plate 12, the interface housing 21 is slidably connected with a sliding seat 22 through a slide rail provided at the bottom of its inner wall, a limiting groove 221 is provided on the lower surface of the sliding seat 22, and a trapezoidal groove 211 is provided on the lower surface of the interface housing 21. A limiting mechanism 23 for fixing the sliding seat 22 is provided inside the trapezoidal groove 211;

[0037] Among them, a guide post 212 is fixedly communicated with one side of the interface housing 21 away from the front end sealing plate 12, and a pressing member 24 is provided inside the circumference of the guide post 212.

[0038] The limiting mechanism 23 includes a limiting plate 231. The trapezoidal groove 211 is connected to a compression spring 232 through the limiting plate 231 arranged inside it. One end of the compression spring 232 away from the limiting plate 231 is connected to a buckle 233, and an adjusting member 25 is arranged on the lower surface of the buckle 233.

[0039] The adjusting member 25 includes an axial rod 251. The top end of the axial rod 251 is fixedly connected to the lower surface of the buckle 233. The bottom end of the axial rod 251 penetrates through the protective shell 1 and extends to the outside of the protective shell 1, and a pull ring 252 is fixedly connected to the bottom end of the axial rod 251. The axial rod 251 is slidably connected to a pull rod 253 through a chute opened on its circumferential outer surface.

[0040] The outer surface of the buckle 233 is designed with an arc surface, and the side of the sliding seat 22 close to the guide post 212 is designed with an arc surface, which can smoothly press the buckle 233 into the trapezoidal groove 211 when the sliding seat 22 is inserted into the interface shell 21. At the same time, when the sliding seat 22 is completely inserted into the interface shell 21, the sliding seat 22 and the interface shell 21 are clamped and fixed.

[0041] The pressing member 24 includes a connecting column 241. The circumferential outer surface of the connecting column 241 is in fit with the inner wall of the guide post 212. One end of the connecting column 241 close to the sliding seat 22 is fixedly connected to a pressing plate 242. A spring 243 is connected between the adjacent surfaces of the pressing plate 242 and the guide post 212, and the spring 243 is sleeved on the circumferential outer surface of the connecting column 241.

[0042] A tapered groove 2411 is opened on one side of the connecting column 241 close to the sliding seat 22. The side of the tapered groove 2411 close to the sliding seat 22 is the opening direction. The opening end of the tapered groove 2411 has a larger notch and gradually narrows inward, avoiding collision and wear on the top end of the external optical fiber jumper port during the insertion process and playing a guiding role.

[0043] A ring plate 244 is fixedly connected to the circumferential outer surface of the connecting column 241. The guide post 212 is slidably connected to a threaded rod 246 through a sliding cavity 245 opened in it. One end of the threaded rod 246 away from the pressing plate 242 penetrates through the ring plate 244 and extends to the outside of the ring plate 244. A bolt meshing with the threaded rod 246 is arranged on the side of the ring plate 244 away from the guide post 212. A snap ring is arranged on the side of the bolt close to the ring plate 244 and extends into the internal card slot of the ring plate 244, enabling the snap ring of the bolt to be rotatably connected inside the ring plate 244.

[0044] The process of inserting the external optical fiber jumper:

[0045] In the initial state, the sliding seat 22 in the terminal block 2 is located inside the interface housing 21 and is in a contracted state. Under the action of the compression spring 232, the buckle 233 in the limiting mechanism 23 protrudes from the bottom of the inner wall of the interface housing 21 and engages and fixes with the limiting groove 221 formed on the lower surface of the sliding seat 22. The side of the buckle 233 close to the pressing plate 242 and the side of the inner wall of the limiting groove 221 close to the pressing plate 242 are both designed with right angles, which enhances the structural stability and tightly fixes the sliding seat 22 inside the interface housing 21. When in use, pull the pull rod 253 below the protective housing 1. The pull rod 253 is located at the bottom of the inner walls of multiple chutes. When the pull rod 253 is pulled downward, all the axial rods 251 will be affected and move downward together. The upper part of the axial rod 251 is fixedly connected to the lower surface of the buckle 233 in the limiting mechanism 23. When the pull rod 253 is pulled horizontally downward, the buckles 233 in all the terminal blocks 2 will be pulled downward. The limiting plate 231 is fixedly connected to the bottom of the inner wall of the trapezoidal groove 211. The buckle 233 moves downward relative to the limiting plate 231, and the distance between the buckle 233 and the limiting plate 231 becomes smaller. The compression spring 232 arranged between the buckle 233 and the limiting plate 231 is compressed and is in a compressed state.

[0046] When the compression spring 232 is compressed to the maximum extent, the upper surface of the buckle 233 is flush with the bottom of the inner wall of the interface housing 21, or the upper surface of the buckle 233 is lower than the upper surface of the bottom of the inner wall of the interface housing 21, that is, the upper half of the buckle 233 is hidden inside the trapezoidal groove 211, the buckle 233 disengages from the limiting groove 221 formed at the bottom end of the sliding seat 22. At the moment when the buckle 233 disengages, the sliding seat 22 loses the limiting effect of the interface housing 21 on it. The spring 243 that has been in a compressed state expands instantly when the buckle 233 is pressed down, driving the connecting column 241 and the pressing plate 242 to move towards the sliding seat 22 until the right end of the threaded rod 246 fits with the right end of the inner wall of the sliding cavity 245. The sliding seat 22 is pushed by the pressing plate 242 and springs open towards the open end of the interface housing 21. At this time, the sliding seats 22 in all the terminal blocks 2 are pushed outwards under the action of the bottom rail of the interface housing 21.

[0047] The process of connecting the fiber optic jumper:

[0048] A plurality of wiring terminals 2 are provided on the front end sealing plate 12. The wiring terminals 2 are divided into connection input terminals and connection output terminals for connecting external optical fiber jumpers. When using the wavelength division multiplexer, the sliding seat 22 that has been partially ejected is pulled to the maximum position, and the port of the external optical fiber jumper is placed into the inside of the sliding seat 22 from the upper opening. When the port of the external optical fiber jumper is completely placed into the sliding seat 22, use your finger to pinch the port of the external optical fiber jumper and the sliding seat 22 so that the upper surface of the inner wall of the sliding seat 22 is in close contact with the lower surface of the port of the external optical fiber jumper, pinch them tightly and move along the track of the slide rail into the inside of the interface housing 21. The shapes of the interface housing 21 and the sliding seat 22 are determined by the shape of the port of the external optical fiber jumper. Due to the small manufacturing tolerance, the left and right ends of the port of the external optical fiber jumper can be positioned and clamped by the sliding seat 22, and the upper and lower ends of the port of the external optical fiber jumper can be positioned and clamped by the upper surface of the inner wall of the interface housing 21 and the lower surface of the sliding seat 22.

[0049] At this time, the buckle 233 is in a protruding state under the action of the elastic potential energy of the compression spring 232. The upper edge line of the buckle 233 near the pressure plate 242 is designed with a right angle, and the upper edge line of the buckle 233 far from the pressure plate 242 is designed with an arc edge. The lower side edge line of the top end of the sliding seat 22 is designed with an arc edge that can fit with the arc edge of the buckle 233. When the sliding seat 22 continues to slide inward, the arc edge of the sliding seat 22 fits with the arc edge of the buckle 233. The buckle 233 is pushed forward by the sliding seat 22 and starts to move downward inside the trapezoidal groove 211. The sliding seat 22 continues to push, and the buckle 233 is completely pressed to the lower surface of the sliding seat 22, and the compression spring 232 is in a compressed state.

[0050] Continue to push the external optical fiber jumper port and the sliding seat 22. After the top end of the external optical fiber jumper port fits against the pressure plate 242, continue to push it inward. At this time, the spring 243 is compressed under extrusion. The pressure plate 242 and the connecting column 241 move away from the sliding seat 22 until the limiting groove 221 under the sliding seat 22 coincides with the trapezoidal groove 211 on the lower surface of the interface housing 21. The buckle 233 inside the trapezoidal groove 211 loses the pressing and limiting effect of the lower surface of the sliding seat 22. Under the action of the compression spring 232, the buckle 233 expands upward instantly when the limiting groove 221 coincides with the trapezoidal groove 211, so that the upper surface of the buckle 233 fits against the top of the inner wall of the limiting groove 221. At this time, the top end of the external optical fiber jumper port and the pressure plate 242 are closely attached under the action of the spring 243. Since a tapered groove 2411 is provided at the top end of the connecting column 241, the opening end of the tapered groove 2411 has a larger slot opening and gradually narrows inward, avoiding collision and wear on the top end of the external optical fiber jumper port during the insertion process and playing a guiding role to align its central axis. Since the limiting groove 221 is rectangular in shape, and the upper part of the buckle 233 away from the pressure plate 242 adopts a right-angle design, the right-angle side of the buckle 233 fits closely with the right-angle side of the limiting groove 221 to achieve clamping and positioning, thereby restricting the position of the sliding seat 22. An opening is provided on the side of the sliding seat 22 away from the guide post 212, and the opening is used to place the external optical fiber jumper port. The remaining baffles around the opening limit the position of the external optical fiber jumper port, ensuring the stability of the external optical fiber jumper port when connected to the terminal 2, avoiding the loosening of the interface caused by the dragging of the external optical fiber jumper, and the separation of the external optical fiber jumper port from the terminal 2.

[0051] When maintenance inspection or replacement of the external optical fiber jumper port is required, if it is necessary to disconnect a single terminal 2, just pull the pull ring 252 corresponding to the terminal 2. The axial rod 251 penetrates through the protective shell 1 and extends to the bottom end of the protective shell 1. During the downward pull of the pull ring 252, the axial rod 251 and the buckle 233 are driven to move downward. When the buckle 233 moves downward, the compression spring 232 is squeezed, and the spring 243 expands. The sliding seat 22 springs outward, and the sliding seat 22 is disengaged from the limiting effect of the interface shell 21. This process is the same as the process of pulling the sliding seat 22 out of the interface shell 21 before inserting the external optical fiber. After pulling it out, the external optical fiber interface can be moved away for maintenance inspection or replacement. During this process, a chute is provided on the circumferential outer surface of the axial rod 251. The pull rod 253 is placed at the bottom of the inner wall of the chute inside a plurality of axial rods 251. When only one pull ring 252 and the axial rod 251 are pulled, the other pull rings 252 and axial rods 251 are not affected and remain in their original states; when all maintenance inspections or replacements of the external optical fiber jumper port are required, just pull the pull rod 253 downward to spring open all the sliding seats 22, and then the external optical fiber jumper port can be inspected, maintained or replaced. An opening is provided on the side of the sliding seat 22 away from the pressure plate 242. The opening can hold the tail line part of the external optical fiber jumper port. When the terminal 2 is not in use, a detachable baffle is provided at the opening end to prevent dust from falling in and contaminating the terminal 2.

[0052] The height of the elevation frame 11 is greater than the length of the axial rod 251 and the pull ring 252 extending to the lower surface of the protective shell 1, so as to adjust the limiting mechanism 23 in the terminal 2 by the adjusting member 25. At the same time, the elevation frame 11 is beneficial to the heat dissipation of the wavelength division multiplexer, reducing the optical fiber transmission problems caused by overheating of the machine. The wavelength division multiplexer is often used inside the computer room. Due to the vibration generated when other machines work, the elevation frame 11 can avoid direct contact with other machines and the connection loosening problems caused by external vibration.

[0053] The process of adjusting the pressing member 24:

[0054] After the wavelength division multiplexer has been used for a period of time, the spring 243 in the pressing member 24 may be fatigued and damaged, resulting in poor elastic force of the spring 243. When an external optical fiber jumper port is inserted into the terminal block 2, the pressing plate 242 and the connecting column 241 may not be able to fit tightly with the external optical fiber jumper port, causing a decrease in the optical fiber transmission signal or a communication interruption. At this time, the user can disassemble and separate the protective case 1 and the front end sealing plate 12. When no external optical fiber jumper port is placed on the right side of the pressing plate 242, the right end of the threaded rod 246 is at the rightmost end of the inner wall of the sliding cavity 245. Using tools such as an external wrench, the bolt meshing with the left side of the ring plate 244 and the threaded rod 246 is rotated further to the left for meshing, that is, the position of the threaded rod 246 on the left side of the bolt becomes smaller, and the position of the threaded rod 246 on the right side of the bolt becomes larger. The outer surface of the end of the threaded rod 246 close to the pressing plate 242 is smooth, which does not affect its sliding inside the sliding cavity 245. At this time, the position of the guide post 212 is fixed and fixedly connected to the interface shell 21, and the position of the bolt and the ring plate 244 is relatively stationary, that is, the ring plate 244 moves to the left side of the threaded rod 246 together with the bolt, and the gap between the ring plate 244 and the guide post 212 increases. Since the ring plate 244, the connecting column 241, and the pressing plate 242 are fixedly connected, the connecting column 241 and the pressing plate 242 are displaced to the left together, the gap between the pressing plate 242 and the interface shell 21 decreases, the stroke range of the spring 243 decreases, and further, the pressing plate 242 and the tapered groove 2411 can fit tightly with the external optical fiber jumper port.

[0055] In summary, when using the terminal block 2, it has the following advantages:

[0056] Advantage 1: The terminal block 2 adopts a drawer-type pull-out design. The sliding seat 22 can be slid out inside the interface shell 21. First, place the external optical fiber jumper port inside the sliding seat 22, and then slide the sliding seat 22 into the interface shell 21 to connect with the connecting column 241 and the tapered groove 2411, avoiding physical damage to the external optical fiber jumper port during blind insertion, such as scratches or contamination. Physical damage may make the optical fiber connection unstable and vulnerable to external vibration, resulting in loose or disconnected connections.

[0057] Advantage 2: The manufacturing tolerance of the terminal 2 is small, which enables the left and right ends of the external optical fiber jumper port to be positioned and clamped by the sliding seat 22, and the upper and lower ends of the external optical fiber jumper port to be positioned and clamped by the upper surface of the inner wall of the interface housing 21 and the lower surface of the sliding seat 22. When the external optical fiber jumper port is fixed inside the interface housing 21 by the sliding seat 22, the protruding buckle 233 is clamped with the inner wall of the limit groove 221 at the bottom end of the sliding seat 22, ensuring that the external optical fiber jumper port will not move back and forth during the connection process. Thus, the terminal 2 is fixed in multiple directions and will not be affected by dragging, vibration, etc., resulting in the loosening or detachment of the external optical fiber jumper and the terminal 2.

[0058] Advantage 3: Under the action of the spring 243, the connecting post 241 and the pressing plate 242 can fit more closely with the external optical fiber jumper port, ensuring the stability of the optical fiber connection, preventing connection loosening caused by vibration, reducing the damage to the external optical fiber jumper and the terminal 2 caused by physical impact or improper operation, and protecting the precision optical components.

[0059] Advantage 4: An adjusting member 25 is provided below the terminal 2. When the terminal 2 needs to be opened for maintenance, inspection or replacement, pulling a single pull ring 252 can quickly disconnect the sliding seat 22 in a single terminal 2, which is convenient for maintenance and replacement and does not affect the states of other terminals 2; when pulling the pull rod 253, the sliding seats 22 in all terminals 2 can be quickly popped open, and the operation is more portable.

[0060] Advantage 5: After the terminal 2 has been used for a long time, the elastic force of the pressing member 24 can be adjusted by adjusting the position of the threaded rod 246 to adapt to the possible fatigue damage of the spring 243, ensuring the stability of long-term use. Also, the position of the pressing plate 242 can be changed by rotating the bolt, so as to adapt to external optical fiber jumper ports of different lengths.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-channel optical fiber wavelength division multiplexer in a high-speed optical module, characterized in that: include: A protective shell (1), wherein a lifting frame (11) is fixedly connected to the lower surface of the protective shell (1), and the protective shell (1) is fixedly connected to a wiring terminal (2) via a front end sealing plate (12) arranged on the outer surface thereof; The wiring terminal (2) comprises an interface shell (21), the open end of the interface shell (21) is fixedly connected to the front end sealing plate (12), the interface shell (21) is slidably connected to a sliding seat (22) via a slide rail provided at the bottom of the inner wall thereof, a limiting groove (221) is provided on the lower surface of the sliding seat (22), a trapezoidal groove (211) is provided on the lower surface of the interface shell (21), and a limiting mechanism (23) for fixing the sliding seat (22) is provided inside the trapezoidal groove (211); Wherein, a guide column (212) is fixedly connected to a side of the interface shell (21) away from the front end sealing plate (12), and a pressing piece (24) is arranged inside the circumference of the guide column (212); The limiting mechanism (23) comprises a limiting plate (231), the trapezoidal groove (211) is connected to a compression spring (232) via the limiting plate (231) arranged inside the trapezoidal groove (211), one end of the compression spring (232) away from the limiting plate (231) is connected to a buckle (233), an adjusting member (25) is arranged on the lower surface of the buckle (233), an opening is opened on the side of the sliding seat (22) away from the guide column (212), a baffle is arranged inside the opening, and the adjusting member (25) comprises an axial rod (251) The top end of the axial rod (251) is fixedly connected to the lower surface of the buckle (233), the bottom end of the axial rod (251) passes through the protective shell (1) and extends to the outside of the protective shell (1), and the bottom end of the axial rod (251) is fixedly connected to a pull ring (252), and the axial rod (251) is slidably connected to the pull rod (253) through a sliding groove provided on its circumferential outer surface. The outer surface of the buckle (233) adopts an arc surface design, and the side of the sliding seat (22) close to the guide column (212) adopts an arc surface design.

2. The multi-channel fiber wavelength division multiplexer in a high-speed optical module according to claim 1, characterized in that: The pressing member (24) comprises a connecting column (241), the circumferential outer surface of the connecting column (241) is in contact with the inner wall of the guide column (212), one end of the connecting column (241) close to the sliding seat (22) is fixedly connected with a pressing plate (242), a spring (243) is connected between the adjacent surfaces of the pressing plate (242) and the guide column (212), and the spring (243) is sleeved on the circumferential outer surface of the connecting column (241).

3. The multi-channel fiber optic wavelength division multiplexer in a high-speed optical module according to claim 2, characterized in that: A conical groove (2411) is formed on one side of the connecting column (241) close to the sliding seat (22).

4. The multi-channel optical fiber wavelength division multiplexer in a high-speed optical module according to claim 3, characterized in that: The circumferential outer surface of the connecting column (241) is fixedly connected to a ring plate (244), and the guide column (212) is slidably connected to a threaded rod (246) through a sliding cavity (245) provided inside the guide column (212). One end of the threaded rod (246) away from the pressure plate (242) passes through the ring plate (244) and extends to the outside of the ring plate (244), and a bolt meshing with the threaded rod (246) is provided on one side of the ring plate (244) away from the guide column (212).

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