Multi-channel optical fiber wavelength division multiplexer in high-speed optical module

Abstract

The invention relates to the technical field of wavelength division multiplexers, and discloses a multichannel optical fiber wavelength division multiplexer in a high-speed optical module, which comprises a protective shell, the lower surface of the protective shell is fixedly connected with a lifting frame, and the protective shell is fixedly connected with a wiring terminal through a front end sealing plate arranged on the outer surface of the protective shell; the wiring terminal comprises an interface shell, the opening end of the interface shell is fixedly connected with the front end sealing plate, and the interface shell is slidably connected with a sliding seat through a sliding rail arranged at the bottom of the inner wall of the interface shell. The multi-channel optical fiber wavelength division multiplexer in the high-speed optical module can effectively solve the problems that since it is difficult to ensure that an external optical fiber reaches an accurate vertical state when inserted, the front end of the external optical fiber is prone to physical damage such as scratches, scratches and abrasion in the butt joint process, the physical damage may weaken the stability of optical fiber connection, and the service life of the optical fiber is affected. Therefore, the problem that the connection is loose and even the fracture risk is increased due to the fact that the connector is more sensitive to external vibration is solved.

Description

Technical Field

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

[0002] Wavelength division multiplexer is a key device used in optical fiber communication systems. Its main function is to transmit multiple optical signals of different wavelengths in one optical fiber at the same time, thus greatly improving the transmission capacity of the optical fiber. It can increase the available bandwidth of the optical fiber and allow capacity expansion without laying more optical fibers, thereby improving the speed, capacity and reliability of optical fiber communication. It is widely used in data center interconnection, metropolitan optical transmission network, telecommunication network and other fields.

[0003] In the prior art, the fiber optic interface is an important component of the wavelength division multiplexer and is used to connect the input and output optical fibers. Since it is difficult to ensure that the external optical fiber reaches a precise 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 wear. These physical damages may weaken the stability of the fiber optic connection, making it more sensitive to external vibrations, thereby increasing the risk of loose connection or even breakage. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings 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 problem in the prior art that it is difficult to ensure that the external optical fiber reaches a precise vertical state when inserted, and the front end of the external optical fiber is prone to physical damage during the docking process, such as scratches and wear. These physical damages may weaken the stability of the optical fiber connection, making it more sensitive to external vibrations, thereby increasing the risk of loose connection or even breakage.

[0006] Technical Solution

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

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

[0009] A protective shell, the lower surface of which is fixedly connected to a lifting frame, and the protective shell is fixedly connected to a wiring terminal via a front end sealing plate arranged on the outer surface thereof;

[0010] Wherein, the wiring terminal comprises 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 to a sliding seat via a slide rail provided at the bottom of the inner wall thereof, a limiting groove is provided on the lower surface of the sliding seat, a trapezoidal groove is provided on the lower surface of the interface shell, and a limiting mechanism for fixing the sliding seat is provided inside the trapezoidal groove;

[0011] Wherein, a side of the interface shell away from the front end sealing plate is fixedly connected with a guide column, and a pressing piece is arranged inside the circumference of the guide column.

[0012] Furthermore, the limiting mechanism includes a limiting plate, the trapezoidal groove is connected to a compression spring via the limiting plate arranged inside the trapezoidal groove, one end of the compression spring away from the limiting plate is connected to a buckle, and an adjusting piece 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 passes through the protective shell and extends to the outside of the protective shell, and the bottom end of the axial rod is fixedly connected to a pull ring, and the axial rod is slidably connected to the pull rod via a sliding groove opened on its circumferential outer surface.

[0014] Furthermore, the outer surface of the buckle adopts a curved surface design, and the side of the sliding seat close to the guide column adopts a curved surface design.

[0015] Furthermore, the pressure member includes a connecting column, the circumferential outer surface of the connecting column is in contact with the inner wall of the guide column, and the end of the connecting column close to the sliding seat is fixedly connected to a pressure plate, and a spring is connected between the adjacent surfaces of the pressure plate and the guide column, and the spring is sleeved on the circumferential outer surface of the connecting column.

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

[0017] Furthermore, a ring plate is fixedly connected to the circumferential outer surface of the connecting column, and the guide column is slidably connected to a threaded rod through a sliding cavity opened inside it. The end of the threaded rod away from the pressure plate passes through the ring plate and extends to the outside of the ring plate, and a bolt engaging with the threaded rod is provided on the side of the ring plate away from the guide column.

[0018] Beneficial Effects

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

[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 and the interface shell are slid apart, and the external optical fiber jumper port is first placed inside the sliding seat, and then slides into the interface shell with the sliding seat to connect with the connecting column and the tapered groove, thereby avoiding physical damage to the external optical fiber jumper port during the blind insertion process, such as scratches or contamination. Physical damage may make the optical fiber connection unstable and easily affected by external vibrations, resulting in loose or disconnected connections. At the same time, the limiting mechanism can clamp and fix the sliding seat and the interface shell when they are tightly fitted together. The 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 to loosen or separate from the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

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

[0024] Figure 3 is a cross-sectional structural diagram of a terminal block according to an embodiment of the present invention;

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

[0026] Figure 5 It is a schematic diagram of a cross-sectional structure from another viewing angle of a connection terminal according to an embodiment of the present invention;

[0027] Figure 6 For the embodiment of the present invention Figure 5 A schematic diagram of the structure with a partial enlargement at the center;

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

[0029] Figure 8 Schematic diagram of the structure of the adjusting member according to an embodiment of the present invention.

[0030] The numbers in the figure represent: 1. protective shell; 11. lifting frame; 12. front end sealing plate; 2. wiring terminal; 21. interface shell; 211. trapezoidal groove; 212. guide column; 22. sliding seat; 221. limit groove; 23. limit mechanism; 231. limit plate; 232. compression spring; 233. buckle; 24. pressure piece; 241. connecting column; 2411. conical groove; 242. pressure plate; 243. spring; 244. ring plate; 245. sliding cavity; 246. threaded rod; 25. adjusting piece; 251. axial rod; 252. pull ring; 253. pull rod. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention will be further described below in conjunction with the embodiments.

[0033] Example:

[0034] See also Figure 1-Figure 8 The present invention provides a technical solution: a multi-channel optical fiber wavelength division multiplexer in a high-speed optical module, comprising:

[0035] A protective shell 1, the lower surface of which is fixedly connected with a lifting frame 11, and the protective shell 1 is fixedly connected with a wiring terminal 2 via a front end sealing plate 12 arranged on its outer surface; a plurality of wiring terminals 2 are arranged, and the wiring terminals 2 are divided into a connection input end and a connection output end, and are used to connect external optical fiber jumpers.

[0036] The terminal block 2 includes an interface shell 21, the opening 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 through 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;

[0037] A guide post 212 is fixedly connected to one side of the interface shell 21 away from the front end sealing plate 12 , and a pressing member 24 is arranged 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 via the limiting plate 231 disposed 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 disposed 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 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 a pull rod 253 through a sliding groove opened on its circumferential outer surface.

[0040] The outer surface of the buckle 233 adopts a curved surface design, and the side of the sliding seat 22 close to the guide column 212 adopts a curved surface design, 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 fully 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 contact with the inner wall of the guide column 212, and a pressing plate 242 is fixedly connected to one end of the connecting column 241 close to the sliding seat 22. 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.

[0042] A conical groove 2411 is provided on one side of the connecting column 241 close to the sliding seat 22. The side of the conical groove 2411 close to the sliding seat 22 is an opening direction. The opening end of the conical groove 2411 is relatively large and gradually tightens inward, thereby avoiding collision and wear on the top of the external optical fiber jumper port during the insertion process and playing a guiding role.

[0043] 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 opened therein. The 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. A bolt meshing with the threaded rod 246 is provided on the side of the ring plate 244 away from the guide column 212, and a retaining ring is provided on the side of the bolt close to the ring plate 244 and extends into the internal retaining groove of the ring plate 244, so that the retaining ring of the bolt can be rotatably connected inside the ring plate 244.

[0044] The process of inserting external fiber patch cord:

[0045] In the initial state, the sliding seat 22 in the terminal block 2 is located inside the interface shell 21 and is in a retracted state. The buckle 233 in the limiting mechanism 23, under the action of the compression spring 232, protrudes from the bottom of the inner wall of the interface shell 21 and is clamped and fixed with the limiting groove 221 opened 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 at right angles, which enhances the stability of the structure and tightly fixes the sliding seat 22 inside the interface shell 21. When it is needed, pull the pull rod 253 under the protective shell 1. The pull rod 253 is located at the bottom of the inner wall of multiple slide grooves. When the pull rod 253 is pulled downward, all the axial rods 251 will be affected by it 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 downward horizontally, the buckles 233 in all the terminal blocks 2 will be pulled down. The limiting plate 231 is fixedly connected to the bottom of the inner wall of the trapezoidal groove 211, and 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 squeezed 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 shell 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 shell 21, that is, the upper half of the buckle 233 is hidden in the trapezoidal groove 211, and the buckle 233 is separated from the limiting groove 221 opened at the bottom end of the sliding seat 22. At the moment when the buckle 233 is separated, the sliding seat 22 loses the limiting effect of the interface shell 21 on it, and the spring 243, which has been in a compressed state, is expanded at the moment when the buckle 233 is pressed down, driving the connecting column 241 and the pressing plate 242 to move to one side of the sliding seat 22, until the right end of the threaded rod 246 is in contact with the right end of the inner wall of the sliding cavity 245, and the sliding seat 22 is affected by the pressing plate 242 and bounces toward the opening end of the interface shell 21. At this time, the sliding seats 22 in all the connecting terminals 2 are bounced outwards under the action of the bottom slide rail of the interface shell 21.

[0047] The process of connecting fiber optic patch cords:

[0048] A plurality of connection terminals 2 are arranged on the front end sealing plate 12, and the connection 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 open to the maximum position, and the port of the external optical fiber jumper is placed inside the sliding seat 22 from the upper opening. When the port of the external optical fiber jumper is completely placed in the sliding seat 22, the port of the external optical fiber jumper and the sliding seat 22 are pinched with fingers, so that the upper surface of the inner wall of the sliding seat 22 and the lower surface of the port of the external optical fiber jumper are tightly fitted, and they are pinched and moved toward the inside of the interface shell 21 along the track of the slide rail. The shape of the interface shell 21 and the sliding seat 22 is 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 shell 21 and the lower surface of the sliding seat 22.

[0049] At this time, the buckle 233 is in a convex state under the action of the elastic potential energy of the compression spring 232. The upper edge line of the buckle 233 close to the pressure plate 242 adopts a right-angle design, and the upper edge line of the buckle 233 away from the pressure plate 242 adopts an arc edge design. The lower side edge line of the top of the sliding seat 22 adopts an arc edge design 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 begins 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 fiber optic jumper port and the sliding seat 22. When the top of the external fiber optic jumper port fits with the pressure plate 242, continue to push it inward. At this time, the spring 243 is squeezed and compressed, and the pressure plate 242 and the connecting column 241 move to the side away from the sliding seat 22 until the limiting groove 221 below the sliding seat 22 coincides with the trapezoidal groove 211 on the lower surface of the interface shell 21, and 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 at the moment when the limiting groove 221 coincides with the trapezoidal groove 211, so that the upper surface of the buckle 233 fits with the top of the inner wall of the limiting groove 221. At this time, the top of the external fiber optic jumper port is tightly attached to the pressure plate 242 under the action of the spring 243. Since a conical groove 2411 is provided at the top of the connecting column 241, the opening end of the conical groove 2411 is larger and gradually tightens inward, thereby avoiding collision and wear on the top of the external fiber optic 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 tightly with the right-angle side of the limiting groove 221 to achieve clamping positioning, thereby limiting the position of the sliding seat 22. The sliding seat 22 is provided with an opening on the side away from the guide column 212, and the opening is used to place the external fiber optic jumper port. The remaining baffles around the opening limit the position of the external fiber optic jumper port, ensuring the stability of the external fiber optic jumper port when connected to the terminal 2, avoiding the loosening of the interface caused by the external fiber optic jumper being dragged, and the separation of the external fiber optic jumper port from the terminal 2.

[0051] When maintenance, inspection or replacement of the external fiber optic jumper port is required, if a single terminal 2 needs to be disconnected, it is only necessary to pull the pull ring 252 corresponding to the terminal 2. The axial rod 251 penetrates the protective shell 1 and extends to the bottom end of the protective shell 1. During the downward pulling of the pull ring 252, the axial rod 251 and the buckle 233 are driven to move downward. The buckle 233 moves downward, the compression spring 232 is squeezed, the spring 243 is expanded, and the sliding seat 22 pops outward. The sliding seat 22 is separated from the limiting effect of the interface shell 21. This process is consistent with 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 removed for maintenance, inspection or replacement. In this process, a slide groove is provided on the outer surface of the circumference of the axial rod 251, and the pull rod 253 is placed at the bottom of the inner wall of the slide groove inside the multiple axial rods 251. When only one of the pull rings 252 and the axial rod 251 is pulled, the other pull rings 252 and the axial rod 251 are not affected and remain in their original state; when the external optical fiber jumper port needs to be repaired, inspected or replaced, it is only necessary to pull the pull rod 253 downward to pop open all the sliding seats 22, and then inspect, repair or replace the external optical fiber jumper port. An opening is provided on the side of the sliding seat 22 away from the pressing plate 242, and the tail wire part of the external optical fiber jumper port can be placed in the opening. When the terminal 2 is not in use, a detachable baffle is provided at the opening end to prevent dust from falling in and causing contamination of the terminal 2.

[0052] The height of the lifting 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 that the adjustment member 25 can adjust the limit mechanism 23 in the terminal block 2. At the same time, the lifting frame 11 is beneficial to the heat dissipation of the wavelength division multiplexer and reduces the optical fiber transmission problems caused by overheating of the machine. The wavelength division multiplexer is often used inside the machine room. Since other machines generate vibrations when working, the lifting frame 11 can avoid direct contact with other machines and the problem of loose connection caused by external vibrations.

[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 suffer fatigue damage, resulting in poor elastic force of the spring 243. When the external fiber jumper port is inserted into the terminal block 2, the pressing plate 242 and the connecting column 241 may not fit tightly with the external fiber jumper port, causing the fiber transmission signal to drop or the communication to be interrupted. At this time, the user can disassemble and separate the protective shell 1 from the front end sealing plate 12. When the external fiber jumper port is not 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 an external wrench or other tool, the bolt meshing with the threaded rod 246 on the left side of the ring plate 244 continues to mesh and rotate to the left, 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 column 212 is fixed and fixedly connected to the interface shell 21, and the positions of the bolt and the ring plate 244 are relatively static, that is, the ring plate 244 moves to the left side of the threaded rod 246 along with the bolt, and the gap between the ring plate 244 and the guide column 212 increases. Since the ring plate 244, the connecting column 241 and the pressure plate 242 are fixedly connected, the connecting column 241 and the pressure plate 242 move to the left side together, and the gap between the pressure plate 242 and the interface shell 21 is reduced, and the travel range of the spring 243 is reduced, so that the pressure plate 242 and the tapered groove 2411 can fit tightly with the external fiber optic jumper port.

[0055] In summary, the following advantages are achieved when using terminal block 2:

[0056] Advantage 1: The terminal block 2 adopts a drawer-type pull-out design. The sliding seat 22 can be slid apart from the inside of the interface shell 21. The external fiber optic jumper port is first placed inside the sliding seat 22, and then slides into the interface shell 21 with the sliding seat 22 to connect with the connecting column 241 and the tapered groove 2411, thereby avoiding physical damage to the external fiber optic jumper port during the blind insertion process, such as scratches or contamination. Physical damage may make the fiber optic connection unstable and easily affected by external vibrations, resulting in loose or disconnected connections.

[0057] Advantage 2: The manufacturing tolerance of the terminal block 2 is small, so that the left and right ends of the external fiber optic jumper port can be positioned and clamped by the sliding seat 22, and the upper and lower ends of the external fiber optic jumper port can be positioned and clamped by the upper surface of the inner wall of the interface shell 21 and the lower surface of the sliding seat 22. When the external fiber optic jumper port is fixed inside the interface shell 21 by the sliding seat 22, the raised buckle 233 is clamped with the inner wall of the limiting groove 221 at the bottom end of the sliding seat 22, ensuring that the external fiber optic jumper port will not move forward and backward during the connection process. At this point, the terminal block 2 is fixed in multiple directions and will not be affected by dragging, vibration, etc., causing the external fiber optic jumper and the terminal block 2 to loosen or detach.

[0058] Advantage three: under the action of the spring 243, the connecting column 241 and the pressure plate 242 can fit more closely with the external fiber optic jumper port, ensuring the stability of the fiber optic connection, preventing the loose connection due to vibration, reducing the damage to the external fiber optic jumper and the terminal block 2 due to physical impact or improper operation, and protecting the precision optical components.

[0059] Advantage 4: An adjusting member 25 is provided under the terminal block 2. When the terminal block 2 needs to be opened for maintenance, inspection or replacement, pulling a single pull ring 252 can realize quick disconnection of the sliding seat 22 in a single terminal block 2, which is convenient for maintenance and replacement without affecting the status of other terminals 2; when the pull rod 253 is pulled, the sliding seats 22 in all the terminals 2 can be quickly opened, and the operation is more portable.

[0060] Advantage 5: After the terminal block 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 possible fatigue damage of the spring 243 and ensure stability during long-term use. The position of the pressing plate 242 can also be changed by rotating the bolt to adapt to external fiber optic 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, 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).

2. The multi-channel fiber wavelength division multiplexer in a high-speed optical module according to claim 1, characterized in that: 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), and an adjusting member (25) is arranged on the lower surface of the buckle (233).

3. The multi-channel fiber optic wavelength division multiplexer in a high-speed optical module according to claim 2, characterized in that: 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) via a sliding groove provided on its circumferential outer surface.

4. The multi-channel optical fiber wavelength division multiplexer in a high-speed optical module according to claim 3, characterized in that: The outer surface of the buckle (233) is designed as a curved surface, and the side of the sliding seat (22) close to the guide pillar (212) is designed as a curved surface.

5. The multi-channel optical 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).

6. The multi-channel optical fiber wavelength division multiplexer in a high-speed optical module according to claim 5, characterized in that: A conical groove (2411) is formed on one side of the connecting column (241) close to the sliding seat (22).

7. The multi-channel optical fiber wavelength division multiplexer in a high-speed optical module according to claim 6, 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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