A wavelength division multiplexer shell packaging structure

Abstract

The present invention relates to the field of wavelength division multiplexers and discloses a wavelength division multiplexer shell packaging structure, comprising an upper shell cover plate and a main shell and a front end sealing plate fixedly connected to the upper shell cover plate and the front end of the main shell, wherein a plurality of groups of socket terminals distributed in two rows and five columns are fixed on the front end sealing plate, and further comprising: four groups of wiring boards, which are fixed in an integrated manner in the main shell and the four groups of wiring boards are distributed equidistantly in the transverse direction, and the four groups of wiring boards separate the interior of the main shell into five groups of wiring cavity grooves, the five groups of wiring cavity grooves corresponding to each column of socket terminals respectively; a wiring structure arranged in each group of wiring cavity grooves, the wiring structure arranged in each group of wiring cavity grooves being distributed in two rows, one-to-one, and corresponding to the plurality of groups of socket terminals distributed in two rows and five columns; a fixed clamping structure and a magnetic connection structure arranged between the upper shell cover plate and the plurality of wiring boards, wherein the wavelength division multiplexer shell packaging structure shows significant improvement in terms of structural compactness, optical fiber line management, convenient assembly and disassembly, and sealing stability.

Description

Technical Field

[0001] The present invention relates to the field of wavelength division multiplexers, in particular to a shell packaging structure of a wavelength division multiplexer. Background Art

[0002] A wavelength division multiplexer (WDM) is a technology that uses optical signals of different wavelengths to transmit within the same optical fiber. It can simultaneously transmit multiple optical signals of different wavelengths, independently transmitting through the fiber without interfering with each other. WDMs utilize fiber Bragg grating (FBG) technology, where optical signals of different wavelengths are reflected and refracted by a reflective grating, ultimately combining them into a single wavelength-multiplexed optical signal for transmission. At the receiving end, a wavelength division multiplexer (WDM) is used to separate the optical signals and then transmit them to their respective receivers. Most existing WDMs are secured using adhesive, with the adhesive plate bolted to the lower housing. This is essentially an adhesive method for securing the WDM to the lower housing. After extended use, adhesive-bonded WDMs are prone to falling off, resulting in poor fixing stability. Assembly and disassembly are cumbersome and can damage the housing structure. Furthermore, the WDM housing's packaging structure, where cables are arranged and secured, is directly coiled onto the bottom housing. The sidewalls of the bottom housing significantly hinder coiling speed and efficiency, and the fibers appear cluttered. And it is pasted on the bottom shell with glue, which affects the appearance and may also affect data transmission. For this reason, we propose a wavelength division multiplexer shell packaging structure. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a wavelength division multiplexer housing packaging structure to solve the above-mentioned problems.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wavelength division multiplexer housing packaging structure, comprising an upper housing cover plate and a main housing, and a front end sealing plate fixedly connected to the upper housing cover plate and the front end of the main housing, wherein the front end sealing plate is fixedly provided with multiple groups of socket terminals distributed in two rows and five columns, and further comprising:

[0005] Four sets of wiring boards are fixedly installed in the main housing in an integrated manner, and the four sets of wiring boards are evenly spaced laterally. The four sets of wiring boards divide the interior of the main housing into five sets of wiring cavity slots, and the five sets of wiring cavity slots correspond to each column of socket terminals respectively;

[0006] A cable arrangement structure is provided in each set of cable arrangement cavity slots, and the cable arrangement structures provided in each set of cable arrangement cavity slots are arranged in two rows, one-to-one, corresponding to the multiple sets of socket terminals arranged in two rows and five columns. The cable arrangement structure is used to neatly and orderly fix the optical fiber cables connected to each set of socket terminals inside the main housing;

[0007] A fixed clamping structure is provided between the upper shell cover and the plurality of wiring boards, which is used to fix the upper shell cover and the main shell together and is quick to assemble and disassemble;

[0008] A magnetic connection structure is provided between the upper shell cover and the main shell, and the magnetic connection structure is used to improve the connection stability between the upper shell cover and the side of the main shell and the sealing performance of the joint between the upper shell cover and the main shell.

[0009] Preferably, the front end and top end of the main shell are open, and the wiring board in the main shell is perpendicular to the front end sealing plate, and the wiring board is flush with the front end of the main shell, and interconnected threaded holes are provided on both sides of the front end of the main shell and on both sides of the front end sealing plate, and the main shell and the front end sealing plate are fixedly connected by bolts through the threaded holes.

[0010] Preferably, the top of the cable tray is higher than the top of the main shell, and the bottom end of the upper shell cover is provided with an open card slot adapted to the top of the cable tray, and the four groups of open card slots at the bottom of the upper shell cover are respectively fitted and snapped into the top area of the four groups of cable trays protruding from the main shell.

[0011] Preferably, the length of the wiring board is shorter than that of the main housing, that is, there is space inside the rear end of the main housing for installing wavelength division multiplexer components.

[0012] Preferably, the wiring structure includes a U-shaped wire fixing member and an elastic bending arc piece, and multiple groups of U-shaped wire fixing members are fixedly installed on the inner wall on the same side of the five groups of wiring cavity grooves in the main shell, and multiple groups of U-shaped wire fixing members are installed on the side inner wall of each group of wiring cavity grooves, which are distributed in two rows and three columns, and the height of each row of U-shaped wire fixing members corresponds to the height of each row of socket terminals on the front end sealing plate, and the inside of the U-shaped wire fixing member is provided with wire clamping grooves with openings at both ends and the top side, and the end face of the U-shaped wire fixing member is U-shaped, and the bending part corresponding to the bottom end of the U-shaped wire fixing member is semicircular, and elastic bending arc pieces are fixedly installed on the inside of the two sides corresponding to the top end of the U-shaped wire fixing member, and the two groups of elastic bending arc pieces of the U-shaped wire fixing member are symmetrical to each other, and the end faces of the elastic bending arc pieces are semicircular, and the side where the two groups of elastic bending arc pieces are close to each other is arched.

[0013] Preferably, the magnetic connection structure arranged between the upper shell cover and the main shell includes a sealed bending groove, a sealing card strip plate, a bent magnet strip one and a bent magnet strip two. A connected sealed bending groove is opened on the three sides of the top of the main shell. The bottom end of the upper shell cover is fixedly connected with a sealing card strip plate adapted to the sealed bending groove near the three side edges. The upper shell cover is tightly fitted to the main shell, and the sealing card strip plate is fitted and clamped in the sealed bending groove. A bent magnet strip one is embedded in the lower inner wall of the bottom of the corresponding sealed bending groove in the main shell, and a bent magnet strip two is embedded in the sealing card strip plate, and the bent magnet strip one in the main shell and the bent magnet strip two in the sealing card strip plate are magnetically attracted to each other.

[0014] Preferably, the first bent magnet strip in the main shell and the second bent magnet strip in the sealing card strip plate are both bent in the same shape as the top end surface of the main shell.

[0015] Preferably, the fixed clamping structure arranged between the upper shell cover and the multiple groups of wiring boards includes a fixed connecting plug plate, a center card plate, a plug-in slot, an extruded block, a fixed connecting block and a fixed connecting slot, the upper shell cover is provided with a rectangular groove on the top outer wall corresponding to the four groups of open card plate slots, the upper shell cover is provided with a rectangular cavity connected to the rectangular groove on the top inner wall corresponding to each group of open card plate slots, and each group of wiring boards has a plug-in slot on the top outer wall corresponding to the position of the rectangular cavity in each group of open card plate slots, the upper shell cover is provided with a fixed connecting plug plate embedded in the rectangular cavity in each group of open card plate slots, and the bottom end of the fixed connecting plug plate extends downward to fit and be clamped in the plug-in slot, a hollow slot with a top opening is provided in the fixed connecting plug plate, and a center card plate is slidably clamped in the fixed connecting plug plate through the hollow slot, and the top end of the center card plate extends out of the fixed connecting plug plate and is located in the rectangular groove The lockhole that is formed on the two ends of the hinge part is formed on the upper surface of the two ends of the hinge part, and the lockhole engages with the two ends of the hinge part respectively has the chest that keeps the lid on the lockhole and the chest of quenching the chest pains.

[0016] Preferably, the end sides of the fixed connecting blocks on both sides of the fixed connecting plug plate that are close to each other are semicircular arc-shaped, and the outer walls on both sides of the extruded block are inclined curved arc-shaped. The end sides of the fixed connecting blocks on both sides of the fixed connecting plug plate that are close to each other are both embedded with magnetic blocks 1, and the positions of the extruded block close to both sides are both embedded with magnetic blocks 2, and the magnetic blocks 2 and the magnetic blocks 1 are magnetically attracted to each other.

[0017] Preferably, a switch plate is slidably engaged in the corresponding rectangular groove at the top of the upper shell cover, and the top of the switch plate protrudes from the top outer wall of the upper shell cover, and the bottom end of the switch plate is fixedly connected to the top of multiple groups of central card plates in the upper shell cover.

[0018] Compared with the prior art, the present invention provides a wavelength division multiplexer housing packaging structure, which has the following beneficial effects:

[0019] 1. The WDM housing packaging structure uses four sets of cable routing plates to separate the main housing into five sets of cable routing cavities. This design not only makes the internal structure compact, but also facilitates the organization and management of optical fibers. The modular design facilitates assembly and disassembly of the components, improving maintenance efficiency. The cable routing structure set in each set of cable routing cavities, including U-shaped cable fixing parts and elastic bending arc pieces, can neatly and orderly fix the optical fibers, avoiding confusion and mutual interference of the optical fibers, and improving the stability and reliability of the system.

[0020] 2. The wavelength division multiplexer shell packaging structure, in which the wiring structure uses two sets of semicircular arched elastic curved arc pieces, can quickly complete the wiring of optical fiber lines and the subsequent removal of optical fiber lines, thereby improving the convenience of the wavelength division multiplexer shell packaging structure for the internal optical fiber wiring operation.

[0021] 3. The WDM shell packaging structure uses a fixed snap-fit structure and a magnetic connection structure to enable quick disassembly and assembly between the upper shell cover and the main shell, which not only improves installation efficiency but also facilitates subsequent maintenance and upgrades. The fixed snap-fit structure ensures the stability of the connection, while the magnetic connection structure enhances the stability of the side connection and the sealing of the seams.

[0022] Improved Sealing and Stability: The magnetic connection structure features a sealed bending groove, a sealing clip plate, and a bent magnet strip, effectively improving the seal between the upper cover and the main housing, preventing the intrusion of dust and moisture. This design also enhances the stability of the connection and extends the life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is an exploded schematic diagram of the main housing and the front end cover of the present invention;

[0025] Figure 3 This is a schematic diagram of the exploded upper shell cover and the main shell of the present invention;

[0026] Figure 4 This is a schematic diagram of the main housing of the present invention;

[0027] Figure 5 for Figure 4 A local enlarged schematic diagram of point A in FIG;

[0028] Figure 6 This is a schematic cross-sectional view of the upper shell cover of the present invention;

[0029] Figure 7 This is a cross-sectional diagram of the connection between the upper shell cover and the main shell of the present invention;

[0030] Figure 8for Figure 7 A partial enlarged schematic diagram of point B in FIG.

[0031] In the figure: 1. Upper shell cover; 2. Main shell; 3. Front sealing plate; 4. Socket terminal; 5. Wiring board; 6. Wiring cavity slot; 7. Open card slot; 8. Sealed bending slot; 9. Sealed card strip plate; 10. U-shaped wire fixing piece; 11. Wire clamping groove; 12. Elastic bending piece; 13. Switch board; 14. Connecting plug-in plate; 15. Center card plate; 16. Rectangular cavity; 17. Connecting slot; 18. Hollow slot; 19. Extruded block; 20. Open cavity; 21. Connecting card block; 22. Connecting card slot; 23. Elastic ring; 24. Magnetic block 1; 25. Magnetic block 2. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-8 A wavelength division multiplexer housing packaging structure includes an upper housing cover 1 and a main housing 2, and a front end sealing plate 3 fixedly connected to the front ends of the upper housing cover 1 and the main housing 2. The front end sealing plate 3 is fixedly provided with multiple groups of socket terminals 4 distributed in two rows and five columns, and further includes:

[0034] Four sets of wiring boards 5 are fixedly installed in the main housing 2 in an integrated manner, and the four sets of wiring boards 5 are evenly spaced laterally. The four sets of wiring boards 5 separate the interior of the main housing 2 into five sets of wiring cavity slots 6, and the five sets of wiring cavity slots 6 correspond to each column of socket terminals 4;

[0035] The cable arrangement structure is provided in each set of cable arrangement cavity slots 6, and the cable arrangement structure provided in each set of cable arrangement cavity slots 6 is arranged in two rows, one-to-one corresponding to the multiple groups of socket terminals 4 arranged in two rows and five columns. The cable arrangement structure is used to neatly and orderly fix the optical fiber wires connected to each group of socket terminals 4 inside the main housing 2;

[0036] A fixed clamping structure is provided between the upper shell cover 1 and the plurality of wiring boards 5, which is used to securely connect the upper shell cover 1 and the main shell 2 together and facilitates quick assembly and disassembly;

[0037] A magnetic connection structure is provided between the upper shell cover 1 and the main shell 2, and the magnetic connection structure is used to improve the connection stability between the upper shell cover 1 and the side of the main shell 2 and the sealing performance of the joint between the upper shell cover 1 and the main shell 2.

[0038] The front end and top of the main shell 2 are open, and the wiring board 5 in the main shell 2 is perpendicular to the front end sealing plate 3, and the wiring board 5 is flush with the front end of the main shell 2. There are interconnected threaded holes on both sides of the front end of the main shell 2 and on both sides of the front end sealing plate 3, and the main shell 2 and the front end sealing plate 3 are threadedly connected with bolts through the threaded holes to complete the connection.

[0039] The top of the wiring board 5 is higher than the top of the main shell 2. The bottom end of the upper shell cover 1 is provided with an open card slot 7 adapted to the top of the wiring board 5, and the four groups of open card slots 7 at the bottom of the upper shell cover 1 are respectively fitted and snapped into the top area of the four groups of wiring boards 5 protruding from the main shell 2. The length of the wiring board 5 is shorter than the length of the main shell 2, that is, there is space inside the rear end of the main shell 2 for installing wavelength division multiplexer components.

[0040] The wiring structure includes a U-shaped wire fixing member 10 and an elastic curved sheet 12. Multiple sets of U-shaped wire fixing members 10 are fixedly installed on the inner wall of the same side of the corresponding five sets of wiring cavity grooves 6 in the main shell 2, and multiple sets of U-shaped wire fixing members 10 are installed on the inner wall of the side of each set of wiring cavity grooves 6. They are distributed in two rows and three columns, and the height of each row of U-shaped wire fixing members 10 corresponds to the height of each row of socket terminals 4 on the front cover 3. The U-shaped wire fixing member 10 is provided with a wire clamping groove 11 with openings at both ends and the top side, and the end face of the U-shaped wire fixing member 10 is U-shaped, and the curved part corresponding to the bottom end of the U-shaped wire fixing member 10 is semicircular. , elastic curved pieces 12 are fixedly installed on both sides of the corresponding top of the U-shaped fixed wire member 10, the two groups of elastic curved pieces 12 of the U-shaped fixed wire member 10 are symmetrical to each other, and the end faces of the elastic curved pieces 12 are semicircular, and the side where the two groups of elastic curved pieces 12 are close to each other is arched, and the optical fiber lines connected to the multiple groups of socket terminals 4 on the front end sealing plate 3 are arranged, and the optical fiber lines connected to the upper and lower groups of socket terminals 4 in each column pass through the corresponding arrangement cavity groove 6, and the two upper and lower distributed optical fiber lines are respectively fixed in the arrangement structure arranged in two rows in each group of arrangement cavity grooves 6. At this time, an optical fiber can be flattened and pressed down into the three sets of U-shaped fixing parts 10 in the same row. At this time, the optical fiber will squeeze the elastic curved pieces 12 on both sides to deform through the pressing force, so that the spacing between the elastic curved pieces 12 on both sides of the U-shaped fixing part 10 becomes wider until the optical fiber is clamped into the bottom of the clamping groove 11. The two sets of elastic curved pieces 12 in the U-shaped fixing part 10 can be restored to a semicircular bulge by their own elasticity to clamp the optical fiber in the U-shaped fixing part 10. Therefore, the wavelength division multiplexer shell packaging structure is provided with four sets of cable arrangements through the main shell 2. The board 5 is separated into five groups of wiring cavity grooves 6, and the wiring structures arranged in each group of wiring cavity grooves 6 are distributed in two rows, one-to-one, and correspond to the multiple groups of socket terminals 4 distributed in two rows and five columns. The optical fiber lines connected to the upper and lower two socket terminals 4 in each column can be fixed on the side of the same wiring board 5. At the same time, the two optical fiber lines will be placed horizontally in the main shell 2 with parallel intervals up and down until the wiring of the optical fiber lines connected to all the socket terminals 4 is completed, so that the optical fiber lines inside the wavelength division multiplexer shell packaging structure are neat and orderly, which is convenient for subsequent maintenance, repair and replacement, and improves the aesthetics of the internal wiring.

[0041] The magnetic connection structure arranged between the upper shell cover 1 and the main shell 2 includes a sealed bending groove 8, a sealed card strip plate 9, a bent magnet strip 1 and a bent magnet strip 2. The three sides of the top of the main shell 2 are provided with a connected sealed bending groove 8, and the bottom end of the upper shell cover 1 is fixedly connected with a sealed card strip plate 9 adapted to the sealed bending groove 8 near the three sides. The upper shell cover 1 fits tightly with the main shell 2, and the sealed card strip plate 9 fits and is clamped in the sealed bending groove 8. A bent magnet strip 1 is embedded in the lower inner wall of the bottom of the corresponding sealed bending groove 8 in the main shell 2, and a bent magnet strip 2 is embedded in the sealed card strip plate 9, and the bent magnet strip 2 in the main shell 2 The folded magnet strip 1 and the folded magnet strip 2 in the sealing card strip plate 9 are magnetically attracted to each other, and the folded magnet strip 1 in the main shell 2 and the folded magnet strip 2 in the sealing card strip plate 9 are both in the same bending shape as the top end face of the main shell 2, and the sealing card strip plate 9 at the bottom end of the upper shell cover 1 will be correspondingly engaged in the sealing bending groove 8 opened at the top end of the main shell 2, and the sealing card strip plate 9 and the sealing bending groove 8 are engaged and the sealing card strip plate 9 and the folded magnet strip 1 in the main shell 2 and the folded magnet strip 2 in the sealing card strip plate 9 are magnetically attracted to each other, thereby improving the connection stability between the upper shell cover 1 and the side of the main shell 2 and the sealing performance of the joint between the upper shell cover 1 and the main shell 2.

[0042] The fixed card structure provided between the upper shell cover 1 and the plurality of wiring boards 5 includes a fixed plug-in plate 14, a center card plate 15, an inserting slot 17, an extrusion block 19, a fixed card block 21 and a fixed card slot 22. The upper shell cover 1 has a rectangular groove on its top outer wall corresponding to the four groups of open card slots 7. The upper shell cover 1 has a rectangular cavity 16 in communication with the rectangular groove on its top inner wall corresponding to each group of open card slots 7. The outer wall of the top of each group of wiring boards 5 corresponds to the inner wall of each group of open card slots 7. The rectangular cavities 16 are all provided with plug-in slots 17. The upper shell cover 1 is embedded with a fixed plug-in plate 14 in the rectangular cavities 16 corresponding to each set of open card slots 7. The bottom end of the fixed plug-in plate 14 extends downward and fits in the plug-in slot 17. A hollow slot 18 with an open top is provided in the fixed plug-in plate 14. The center card 15 is slidably connected to the fixed plug-in plate 14 through the hollow slot 18. The top end of the center card 15 extends out of the fixed plug-in plate 14 and is located in the rectangular groove. The plug board 14 is provided with an open cavity 20 on both sides near the bottom, and the fixed plug board 14 is provided with a fixed card block 21 slidingly connected in the open cavity 20 on both sides. Each group of plug-in slots 17 in the cable tray 5 is provided with a fixed card slot 22 communicating with the open cavity 20 on both sides of the inner wall near the bottom, and the fixed card blocks 21 on both sides of the fixed plug board 14 protrude from both sides of the fixed plug board 14 and are slidably connected in the fixed card slot 22 opened on the inner wall on both sides of the plug-in slot 17. The center card board 15 is located in the fixed The bottom end of the connecting plate 14 is higher than the open cavity 20, and an integrated extruded block 19 is fixed to the bottom end of the center clamping plate 15. The extruded block 19 is narrow at the top and wide at the bottom, and the outer walls on both sides of the extruded block 19 are respectively attached to the end sides of the two groups of fixed connecting blocks 21 near the bottom end. There is a space between the bottom end of the extruded block 19 and the bottom inner wall of the fixed connecting plate 14, and an elastic ring 23 is fixedly connected between the bottom outer wall of the extruded block 19 and the bottom inner wall of the fixed connecting plate 14, and the end face of the elastic ring 23 is elliptical.

[0043] The ends of the fixed connecting blocks 21 on both sides of the fixed connecting plate 14 that are close to each other are semicircular, and the outer walls of the two sides of the extruded block 19 are inclined curved. The ends of the fixed connecting blocks 21 on both sides of the fixed connecting plate 14 that are close to each other are embedded with magnetic blocks 24, and the positions of the extruded block 19 close to both sides are embedded with magnetic blocks 25, and the magnetic blocks 25 and 24 are magnetically attracted to each other.

[0044] A switch plate 13 is slidably engaged in the corresponding rectangular groove at the top of the upper shell cover 1, and the top of the switch plate 13 protrudes from the top outer wall of the upper shell cover 1, and the bottom end of the switch plate 13 is fixedly connected to the top of multiple groups of central card plates 15 in the upper shell cover 1.

[0045] Working principle: When assembling the wavelength division multiplexer, the main shell 2 and the front end cover 3 can be fixedly connected by bolts and threaded holes first, and then the optical fiber lines connected to the multiple groups of socket terminals 4 on the front end cover 3 are arranged, and the light lines connected to the upper and lower groups of socket terminals 4 in each column pass through the corresponding wiring cavity grooves 6, and the two upper and lower distributed optical fiber lines are respectively fixed in the wiring structure distributed in two rows in each group of wiring cavity grooves 6. At this time, an optical fiber line can be flattened and pressed downward into the three groups of U-shaped wire fixing parts 10 in the same row. At this time, through the pressing force, the optical fiber line will squeeze the elastic curved pieces 12 on both sides to deform, so that the spacing between the elastic curved pieces 12 on both sides of the U-shaped wire fixing part 10 becomes wider, until the optical fiber line is clamped into the bottom of the clamping groove 11. The two groups of elastic curved pieces 12 in 10 can be elastically restored to a semicircular bulge shape to clamp and fix the optical fiber lines in the U-shaped fixing member 10. Therefore, the wavelength division multiplexer shell packaging structure is provided with four groups of wiring boards 5 in the main shell 2 and separated into five groups of wiring cavity grooves 6. The wiring structures provided in each group of wiring cavity grooves 6 are distributed in two rows in the upper and lower parts and correspond one to one with the multiple groups of socket terminals 4 distributed in two rows and five columns. The optical fiber lines connected to the two upper and lower socket terminals 4 in each column can be fixed on the side of the same wiring board 5. At the same time, the two optical fiber lines will be placed horizontally in the main shell 2 in parallel with each other until the wiring of the optical fiber lines connected to all the socket terminals 4 is completed. This makes the optical fiber lines inside the wavelength division multiplexer shell packaging structure neat and orderly, facilitates subsequent maintenance and replacement, and improves the aesthetics of the internal wiring.

[0046] After that, the upper shell cover 1 and the main shell 2 are assembled to form a wavelength division multiplexer shell packaging structure. At this time, the upper shell cover 1 is correspondingly connected to the top of the four groups of wiring boards 5 in the main shell 2 through the four groups of open card slots 7 at the bottom, which can ensure the flush shape of the upper shell cover 1 and the main shell 2 during assembly, and will not be misaligned. At the same time, the connectivity is improved. In this process, it is necessary to press the switch board 13 downward. During the process of plugging the fixed connecting board 14 in the open card slot 7 into the plug-in empty slot 17 on the wiring board 5, the multiple groups of center card boards 15 on the upper shell cover 1 move downward in the fixed connecting board 14 under the action of the switch board 13. At this time, The extruding block 19 at the bottom end of the center card plate 15 will move downward synchronously and compress the elastic ring 23 to deform. At the same time, when the extruding block 19 moves downward, the interval width of the position of the opening cavity 20 on the outer walls on both sides thereof will gradually decrease, thereby simultaneously passing through the mutual magnetic attraction of the magnetic blocks 25 on both sides of the extruding block 19 and the magnetic blocks 1 24 on both sides of the fixed card blocks 21, it can be ensured that the curved end sides of the fixed card blocks 21 will always fit the inner walls on both sides of the extruding block 19. Therefore, in the process of the extruding block 19 moving downward, the fixed card blocks 21 on both sides will retract into the fixed plug plate 14 and approach each other until the end sides of the two groups of fixed card blocks 21 facing away from each other are aligned with the side walls of the fixed plug plate 14. When the clamping plate 13 is pressed against the clamping plate 15, the clamping plate 13 is pressed against the clamping plate 15, and the clamping plate 13 is pressed against the clamping plate 15. When the clamping plate 13 is pressed against the clamping plate 15, the clamping plate 13 is pressed against the clamping plate 15, and the clamping plate 13 is pressed against the clamping plate 15. When the clamping plate 13 is pressed against the clamping plate 15, the clamping plate 13 is pressed against the clamping plate 15, and the clamping plate 13 is pressed against the clamping plate 15. The upper shell cover 1 is fixedly connected to the wiring board 5 by being dynamically snapped into the fixing slot 22, thereby completing the fixing connection between the upper shell cover 1 and the wiring board 5. That is, the upper shell cover 1 and the main shell 2 are fixedly connected, and the bottom end of the upper shell cover 1 is in contact with the top end of the main shell 2. At the same time, the sealing card strip plate 9 at the bottom end of the upper shell cover 1 is correspondingly snapped into the sealing bending groove 8 opened at the top end of the main shell 2. The sealing card strip plate 9 is snapped into the sealing bending groove 8 and the sealing card strip plate 9 is magnetically attracted to the bent magnet strip 1 in the main shell 2 and the bent magnet strip 2 in the sealing card strip plate 9, thereby improving the connection between the upper shell cover 1 and the side of the main shell 2 and the sealing performance of the joint between the upper shell cover 1 and the main shell 2.

[0047] When disassembling the wavelength division multiplexer shell packaging structure, it is only necessary to press the switch plate 13 downwards. As described above, the fixed connecting blocks 21 on both sides of the fixed connecting plug-in board 14 can be retracted into the fixed connecting plug-in board 14, and the upper shell cover 1 and the main shell 2 can be separated upwards, making the wavelength division multiplexer shell packaging structure easy to disassemble, which is very beneficial for the maintenance and inspection of the wavelength division multiplexer during the subsequent use of the wavelength division multiplexer shell packaging structure.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wavelength division multiplexer housing packaging structure, comprising an upper housing cover plate (1) and a main housing (2), and a front end sealing plate (3) fixedly connected to the upper housing cover plate (1) and the front end of the main housing (2), wherein a plurality of groups of socket terminals (4) arranged in two rows and five columns are fixedly provided on the front end sealing plate (3), characterized in that: Also includes: Four groups of wiring boards (5) are fixedly mounted in the main housing (2) in an integrated manner. The four groups of wiring boards (5) are distributed equidistantly in the transverse direction. The four groups of wiring boards (5) separate the interior of the main housing (2) into five groups of wiring cavity slots (6). The five groups of wiring cavity slots (6) correspond to each column of socket terminals (4). A wiring arrangement structure is provided in each set of wiring arrangement cavity grooves (6), and the wiring arrangement structures provided in each set of wiring arrangement cavity grooves (6) are arranged in two upper and lower rows corresponding to each set of socket terminals (4) on a one-to-one basis. The wiring arrangement structure is used to neatly and orderly fix the optical fiber wires connected to each set of socket terminals (4) inside the main housing (2); A fixed clamping structure is provided between the upper shell cover (1) and the plurality of wiring boards (5); the bottom end of the upper shell cover (1) is provided with an open clamping groove (7) adapted to the top of the wiring board (5); the four groups of open clamping grooves (7) at the bottom of the upper shell cover (1) are respectively fitted and clamped to the top areas of the four groups of wiring boards (5) protruding from the main shell (2); the fixed clamping structure includes a fixed plug-in plate (14), a center clamping plate (15), a plug-in slot (17), an extrusion block (19), a fixed clamping block (21) and a fixed clamping groove (22); a rectangular groove is provided on the top outer wall of the upper shell cover (1) corresponding to the four groups of open clamping grooves (7); the upper shell cover (1) corresponds to each group of open clamping grooves (7) ) are provided with a rectangular cavity (16) in communication with the rectangular groove on the top inner wall of each group of wiring boards (5), a plug-in slot (17) is provided on the top outer wall of each group of wiring boards (5) corresponding to the position of the rectangular cavity (16) in each group of open card slots (7), and a fixed plug-in plate (14) is embedded in the rectangular cavity (16) in each group of open card slots (7) on the upper shell cover (1), and the bottom end of the fixed plug-in plate (14) extends downward and fits in the plug-in slot (17), and a hollow slot (18) with a top opening is provided in the fixed plug-in plate (14), and a center card (15) is slidably connected to the fixed plug-in plate (14) through the hollow slot (18), and the top end of the center card (15) extends out of the fixed plug-in plate ( 14) and is located in the rectangular groove, the fixed plug plate (14) is provided with an open cavity (20) on both sides near the bottom, the fixed plug plate (14) is provided with a fixed card block (21) slidingly connected in the open cavity (20) on both sides of the fixed plug plate (14), and each group of plug slots (17) in the wiring board (5) is provided with a fixed card slot (22) communicating with the open cavity (20) on both sides of the inner wall near the bottom, the fixed card blocks (21) on both sides of the fixed plug plate (14) are protruding from both sides of the fixed plug plate (14) and are slidably connected in the fixed card slots (22) opened on the inner walls on both sides of the plug slots (17), the bottom end of the center card plate (15) located in the fixed plug plate (14) is higher than the open cavity (20), and the center card plate ( The bottom end of the extrusion block (15) is fixedly provided with an integrated extrusion block (19), which is narrow at the top and wide at the bottom. The outer walls of both sides of the extrusion block (19) are respectively fitted with the end sides of the two groups of fixed card blocks (21) near the bottom end. There is a space between the bottom end of the extrusion block (19) and the bottom inner wall of the fixed plug plate (14). An elastic ring (23) is fixedly connected between the bottom outer wall of the extrusion block (19) and the bottom inner wall of the fixed plug plate (14); the ends of the two groups of fixed card blocks (21) close to each other are both embedded with magnetic blocks (24), and the positions of the extrusion block (19) close to both sides are both embedded with magnetic blocks (25), and the magnetic blocks (25) and the magnetic blocks (24) are magnetically attracted to each other.

2. The wavelength division multiplexer housing packaging structure according to claim 1, wherein: The front end and top end of the main shell (2) are open, the wiring board (5) is perpendicular to the front end sealing plate (3), and the wiring board (5) is flush with the front end of the main shell (2). Both sides of the front end of the main shell (2) and both sides of the front end sealing plate (3) are provided with interconnected threaded holes, and the main shell (2) and the front end sealing plate (3) are fixedly connected by bolts through the threaded holes.

3. The wavelength division multiplexer housing packaging structure according to claim 1, wherein: The top end of the wiring board (5) is higher than the top end of the main housing (2).

4. The wavelength division multiplexer housing packaging structure according to claim 3, wherein: The length of the wiring board (5) is shorter than that of the main housing (2), and there is space inside the rear end of the main housing (2) for installing wavelength division multiplexer components.

5. The wavelength division multiplexer housing packaging structure according to claim 1, wherein: The wiring structure comprises a U-shaped wire fixing member (10) and an elastic curved arc sheet (12). Multiple groups of U-shaped wire fixing members (10) are fixedly installed on the inner wall of the same side of the five groups of wiring cavity grooves (6) in the main shell (2). The multiple groups of U-shaped wire fixing members (10) installed on the inner wall of the side of each group of wiring cavity grooves (6) are distributed in two rows and three columns. The height of each row of U-shaped wire fixing members (10) corresponds to the height of each row of socket terminals (4) on the front end sealing plate (3). The U-shaped wire fixing members ( 10) is provided with a wire-holding groove (11) with openings at both ends and the top side, the end face of the U-shaped wire fixing member (10) is U-shaped, the curved portion corresponding to the bottom end of the U-shaped wire fixing member (10) is semicircular, and elastic curved pieces (12) are fixedly installed inside the two sides corresponding to the top end of the U-shaped wire fixing member (10), the two groups of elastic curved pieces (12) are symmetrical to each other, the end faces of the elastic curved pieces (12) are semicircular, and the sides of the two groups of elastic curved pieces (12) close to each other are arched.

6. The wavelength division multiplexer housing packaging structure according to claim 1, characterized in that: The invention also includes a magnetic connection structure provided between the upper shell cover plate (1) and the main shell (2), and the magnetic connection structure is used to improve the connection stability between the upper shell cover plate (1) and the side of the main shell (2) and the sealing performance of the joint between the upper shell cover plate (1) and the main shell (2); the magnetic connection structure includes a sealing bending groove (8), a sealing card plate (9), a bending magnet strip 1 and a bending magnet strip 2, and the top three sides of the main shell (2) are provided with connected sealing bending grooves (8), and the bottom end of the upper shell cover plate (1) is close to the sealing card plate (9). Nearly three sides are fixedly connected with a sealing card strip plate (9) adapted to the sealing bending groove (8); the upper shell cover plate (1) is tightly fitted with the main shell (2); the sealing card strip plate (9) is fitted and clamped in the sealing bending groove (8); a bending magnet strip 1 is embedded below the inner wall of the bottom of the corresponding sealing bending groove (8) in the main shell (2); a bending magnet strip 2 is embedded in the sealing card strip plate (9); the bending magnet strip 1 in the main shell (2) and the bending magnet strip 2 in the sealing card strip plate (9) are magnetically attracted to each other.

7. The wavelength division multiplexer housing packaging structure according to claim 6, characterized in that: The first bent magnet strip in the main shell (2) and the second bent magnet strip in the sealing card strip plate (9) both have the same bent shape as the top end surface of the main shell (2).

8. The wavelength division multiplexer housing packaging structure according to claim 1, characterized in that: The end face of the elastic ring (23) is elliptical.

9. The wavelength division multiplexer housing packaging structure according to claim 1, characterized in that: The ends of the fixed connecting blocks (21) on both sides of the fixed connecting plug plate (14) close to each other are semicircular arc-shaped, and the outer walls of the extrusion block (19) on both sides are inclined curved arc-shaped.

10. The wavelength division multiplexer housing packaging structure according to claim 9, characterized in that: A switch plate (13) is slidably engaged in a rectangular groove corresponding to the top end of the upper shell cover (1); the top end of the switch plate (13) protrudes from the top outer wall of the upper shell cover (1); and the bottom end of the switch plate (13) is fixedly connected to the top ends of multiple sets of central clamping plates (15) in the upper shell cover (1).

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