A splicing and capacity expansion type optical splitter

Abstract

This invention discloses a splicing expansion optical splitter, which includes at least two sub-splitters. Each sub-splitter includes a splitter body and a splicing fixing assembly. An interface board is provided on one side of the splitter body, and the interface board is configured for optical path docking. The splicing fixing assembly is detachably connected to the splitter body along the circumference of the splitter body. The splicing fixing assemblies of two adjacent sub-splitters are plugged into each other along a first direction. The optical splitter also includes a limiting assembly, which includes a limiting rod and two connecting members. The two connecting members are arranged relatively spaced apart. One of the two connecting members is detachably connected to the splicing fixing assembly at one end along the first direction, and the other of the two connecting members is detachably connected to the splicing fixing assembly at the other end along the first direction. The first end of the limiting rod is limited and connected to one of the connecting members, and the second end of the limiting rod is limited and connected to the other connecting member.

Description

Technical Field

[0001] This application relates to the field of optical communication equipment technology, and in particular to a splicing expansion optical splitter. Background Technology

[0002] In fiber optic communication networks, optical splitters, as core functional devices for splitting and combining optical signals, are widely used in various optical transmission scenarios such as triple play and FTTH (Fiber to the Home). Their performance directly affects the signal transmission quality and operational stability of the entire optical network. With the rapid iteration of digital and information technologies, the coverage of optical communication networks is constantly expanding, and end-users' demands for optical signal splitting are becoming increasingly diverse and differentiated. The splitting capacity requirements of optical splitters vary significantly under different application scenarios, which places higher demands on the expansion flexibility of optical splitters.

[0003] To address capacity expansion needs, some existing technologies attempt to splice multiple independent optical splitters, often using simple brackets and relying on individual splicing points for connection. This fails to guarantee the stability of the entire splicing structure, making it prone to loosening and misalignment, which can lead to optical signal transmission interruptions or signal quality degradation. Furthermore, expanding or reducing the number of splitters requires disassembling the entire splicing structure, which is complex, inefficient, and increases construction and maintenance costs. Additionally, the tight fit and minimal gaps between adjacent splitter units after splicing prevent timely heat dissipation during operation. Since the insertion loss of optical splitters fluctuates significantly with temperature, poor heat dissipation directly reduces splitting uniformity, increases signal transmission loss, and in severe cases, can damage internal optical components, affecting the lifespan and operational stability of the optical splitter.

[0004] In view of this, a new technical solution is needed to at least solve one of the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem to be solved by this application is to overcome the defects in the prior art, thereby providing a splicing and expansion optical splitter.

[0006] To achieve the above objectives, this application adopts the following technical solution: A splicing expansion optical splitter, the splicing expansion optical splitter comprising at least two sub-splitters, each of the sub-splitters comprising: The splitter body has an interface board on one side, which is configured for optical path docking. A splicing and fixing assembly is detachably connected to the splitter body along the circumferential direction; the splicing and fixing assemblies of two adjacent sub-splitters are plugged into each other along a first direction; the first direction corresponds to the thickness direction of the splitter body; The splicing expansion optical splitter also includes a limiting component, which includes a limiting rod and two connectors. The two connectors are arranged at intervals relative to each other. One of the two connectors is detachably connected to a splicing fixing component at one end along a first direction, and the other of the two connectors is detachably connected to a splicing fixing component at the other end along the first direction. The first end of the limiting rod is limited and connected to one of the connectors, and the second end of the limiting rod is limited and connected to the other connector.

[0007] Optionally, the splicing and fixing assembly includes a splicing member, one end of which is configured as an insert block and the other end as an insert frame along a first direction; the insert block of one of two adjacent splicing and fixing assemblies is inserted and connected to the insert frame of the other.

[0008] Optionally, the connector includes a connecting block and an adapter plate, the adapter plate being disposed on the side of the connecting block; The outer side of the splicing component is provided with a locking groove. The connecting block is locked to the splicing component at the locking groove and fixed by fasteners. The adapter plate is limited to the limiting rod.

[0009] Optionally, the adapter plate has an adapter hole, the limiting rod is inserted into the adapter hole, and the first end of the limiting rod is provided with a limiting stop to prevent the first end of the limiting rod from disengaging from the corresponding adapter hole; the limiting rod has an external thread, and the second end of the limiting rod is screwed with a limiting nut to prevent the second end of the limiting rod from disengaging from the corresponding adapter hole.

[0010] Optionally, the splicing fixing assembly further includes two snap-fit ​​frames, which are disposed at a distance from each other on the inner side of the splicing component; One side of the splitter body is embedded in one of the snap-fit ​​frames, and the other side of the splitter body is embedded in the other snap-fit ​​frame.

[0011] Optionally, the interface board is provided with a connecting plate at one end, the connecting plate is provided with a first connecting hole, one of the snap-fit ​​frames is provided with a second connecting hole, and a third connecting hole is provided on one side of the splitter body; The interface board, the snap-fit ​​frame, and the splitter body are fastened together by fasteners that pass through the first connection hole, the second connection hole, and the third connection hole in sequence.

[0012] Optionally, any of the sub-splitters further includes a heat dissipation component, which is provided between two adjacent splicing fixing components along the first direction.

[0013] Optionally, in the two adjacent splicing and fixing components, the heat dissipation component is fixedly connected to one of them and detachably connected to the other.

[0014] Optionally, the splicing and fixing assembly includes a splicing component and two snap-fit ​​frames, the two snap-fit ​​frames being disposed at a distance from each other along a second direction on the inner side of the splicing component; The heat dissipation assembly includes a radiator and two heat dissipation plates. One of the heat dissipation plates is fixedly connected to the top of one of the two snap-fit ​​frames, and the radiator is mounted on the heat dissipation plate. The radiator is capable of outputting airflow toward the other heat dissipation plate. The other heat dissipation plate is fixedly connected to the top of the other of the two snap-fit ​​frames, and the heat dissipation plate is provided with heat dissipation holes through a second direction.

[0015] Optionally, the radiator includes a drive motor and a fan blade. The drive motor is mounted on the outer side of the heat sink away from the other heat sink, and the fan blade is disposed on the inner side of the heat sink facing the other heat sink. The output shaft of the drive motor is connected to the fan blade to drive the fan blade to rotate.

[0016] Optionally, the number of fan blades is two, and the radiator further includes a transmission assembly, a part of which is connected to the drive motor and one of the fan blades, and another part of which is connected to the other fan blade.

[0017] Optionally, a locking frame is fixedly connected to the bottom of the snap-fit ​​frame, and the locking frame is used to detachably snap onto the heat dissipation plate of the heat dissipation component that is fixedly connected to the adjacent splicing fixing component.

[0018] Compared with the prior art, the beneficial effects of this application are as follows: In the splicing expansion optical splitter provided in this application embodiment, the splicing fixing component limits the splicing of two adjacent splitter bodies, thereby allowing the number of sub-splitters to be increased or decreased according to actual expansion needs without replacing the entire splitter with a larger capacity one; and the addition or removal is convenient, reducing subsequent maintenance and replacement costs; the heat dissipation component increases the gap between two adjacent splitter bodies, thereby improving the overall heat dissipation effect and forming a better heat dissipation channel between two adjacent splitter bodies, thus preventing excessive temperature from affecting the use of the splitter; the limiting component connects and limits the top and bottom two splitter bodies, thereby limiting all the middle splitter bodies and improving the overall splicing stability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a splicing expansion optical splitter according to an embodiment of this application. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a splicing expansion optical splitter according to an embodiment of this application. Figure 2 ; Figure 3 This is a schematic diagram of the structure of a sub-splitter in a splicing and expansion optical splitter according to an embodiment of this application; Figure 4 This is a partial structural diagram of a splicing and expansion optical splitter according to an embodiment of this application. Figure 1 ; Figure 5 This is a schematic diagram of the splitter body in a splicing and expansion optical splitter according to an embodiment of this application; Figure 6 This is a partial structural diagram of a splicing and expansion optical splitter according to an embodiment of this application. Figure 2 ; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the limiting component in a splicing expansion optical splitter according to an embodiment of this application; Figure 9 This is a schematic diagram of the connecting component in the limiting assembly of a splicing expansion optical splitter according to an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 1. Sub-splitter; 11. Splitter body; 111. Interface board; 112. Connecting plate; 1120. First connecting hole; 113. Insert plate; 110. Third connecting hole; 12. Splicing and fixing assembly; 121. Splicing piece; 1210. Locking slot; 1211. Insert block; 1212. Insert frame; 1213. First threaded insert rod; 1214. First fastening nut; 1201. First insertion hole; 1202. Second insertion hole; 1203. 122. Third insertion hole; 122. Snap-fit ​​frame; 1220. Second connecting hole; 123. Locking frame; 124. Fastening bolt; 13. Heat dissipation assembly; 131. Radiator; 1311. Drive motor; 1312. Fan blade body; 1313. Drive rod; 1314. Drive pulley; 1315. Driven rod; 1316. Driven pulley; 1317. Transmission belt; 1318. Annular baffle; 132. Heat dissipation plate; 1320. Heat dissipation hole; 2. Limiting component; 21. Limiting rod; 22. Connector; 220. Adapter hole; 221. Connecting block; 2210. Fourth insertion hole; 222. Adapter plate; 223. Baffle; 224. Second threaded rod; 225. Second fastening nut; 23. Limiting block; 24. Limiting nut. Detailed Implementation

[0022] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Reference Figures 1-9 As shown, this application embodiment provides a splicing expansion optical splitter, which includes at least two sub-splitters 1. Each of the sub-splitters 1 includes a splitter body 11 and a splicing fixing assembly 12. An interface board 111 is provided on one side of the splitter body 11, and the interface board 111 is configured for optical path docking. The splicing and fixing assembly 12 is detachably connected to the splitter body 11 along the circumferential direction; the splicing and fixing assemblies 12 of two adjacent sub-splitters 1 are plugged in and connected along a first direction; the first direction corresponds to the thickness direction of the splitter body 11. The splicing expansion optical splitter also includes a limiting component 2, which includes a limiting rod 21 and two connectors 22. The two connectors 22 are arranged at intervals relative to each other. One of the two connectors 22 is detachably connected to a splicing fixing component 12 at one end along a first direction, and the other of the two connectors 22 is detachably connected to the splicing fixing component 12 at the other end along the first direction. The first end of the limiting rod 21 is limited and connected to one of the connectors 22, and the second end of the limiting rod 21 is limited and connected to the other connector 22.

[0026] The main structure of the splicing and expansion-type optical splitter provided in this application embodiment consists of at least two sub-splitters 1. Each sub-splitter 1 includes two basic structures: a splitter body 11 and a splicing and fixing assembly 12. The entire device is also equipped with a limiting assembly 2, forming a complete splicing and expansion-type optical path splitting device. The splitter body 11 is the core functional component for realizing optical path splitting, the splicing and fixing assembly 12 is the splicing and assembly structure between the sub-splitters 1, and the limiting assembly 2 is the locking and limiting structure of the overall splicing structure. These structures cooperate to achieve modular splicing and stable expansion of the optical splitter. Meanwhile, an interface board 111 is fixedly installed on the side of the splitter body 11 that is not connected to the splicing and fixing assembly 12. The interface board 111 serves as an optical path docking carrier, used to realize the input and output of optical signals and optical path docking operations, ensuring the basic optical path transmission function of the optical splitter.

[0027] In terms of structural connection and assembly, the splicing and fixing components 12 are arranged circumferentially along the splitter body 11, and the splicing and fixing components 12 and the splitter body 11 are tightly and reliably connected; and the splicing and fixing components 12 and the splitter body 11 adopt a detachable connection method, which facilitates the disassembly, repair and replacement of a single sub-splitter 1; the splicing and fixing components 12 of two adjacent sub-splitters 1 are plugged in and assembled along the first direction, wherein the first direction is defined as the thickness direction of the splitter body 11, so that multiple sub-splitters 1 can be stacked and spliced ​​sequentially along the thickness direction. The limiting component 2 consists of a limiting rod 21 and two relatively spaced connectors 22. The two connectors 22 are respectively assembled at both ends of the overall splicing structure along the first direction. One connector 22 is detachably connected to the splicing fixing component 12 at one end of the first direction, and the other connector 22 is detachably connected to the splicing fixing component 12 at the other end of the first direction. The two ends of the limiting rod 21 form a limiting connection relationship with the two connectors 22 respectively, thereby limiting the splicing fixing components 12 at both ends and all the sub-splitters 1 stacked in the middle in series.

[0028] This modular expansion optical splitter, with its modular sub-splitter 1 design and plug-in splicing structure of the splicing fixing component 12, allows operators to flexibly increase or decrease the number of sub-splitter 1 units according to the actual needs of optical path expansion on site, without having to replace the entire high-capacity optical splitter, significantly reducing the cost of equipment upgrades and modifications. Simultaneously, the detachable assembly structure makes the disassembly and assembly of the sub-splitter 1 more convenient, effectively reducing the difficulty and cost of later equipment maintenance and fault replacement. Combined with the overall limiting structure of the limiting component 2, it can lock and position multiple spliced ​​sub-splitter 1 units as a whole, preventing problems such as loosening, offset, and misalignment of the stacked sub-splitter 1 units, significantly improving the overall splicing stability and structural robustness of the equipment, and ensuring the accuracy and stability of optical path connection.

[0029] In the actual assembly process, according to the optical path splitting port requirements of the computer room, two, three or more sub-splitters 1 can be selected and spliced ​​sequentially along the thickness direction through splicing fixing components 12. After splicing, the entire assembly is locked by the connectors 22 at both ends in conjunction with the limiting rods 21. It is suitable for optical path expansion scenarios of different scales and has extremely strong adaptability.

[0030] Reference Figure 3 , Figure 4 As shown, in one embodiment, the splicing and fixing assembly 12 includes a splicing member 121, one end of which is configured as an insert block 1211 and the other end is configured as an insert frame 1212 along a first direction; the insert block 1211 of one of two adjacent splicing and fixing assemblies 12 is inserted and connected to the insert frame 1212 of the other.

[0031] In this specific example, the splicing and fixing assembly 12 includes a splicing component 121, which is the core component for splicing adjacent sub-splitters 1. Different insertion structures are provided at both ends of the splicing component 121 along the first direction, with one end being a plug block 1211 and the other end being a frame 1212. The plug block 1211 and the frame 1212 are mutually matching insertion structures, enabling quick alignment and insertion of adjacent splicing and fixing assemblies 12. Furthermore, the plug block 1211 has a first insertion hole 1201 inside, and the corresponding position of the frame 1212 has a second insertion hole 1202. The first insertion hole 1201 and the second insertion hole 1202 have matching diameters and corresponding positions, providing an assembly basis for locking and fixing.

[0032] In terms of structural connection and assembly, the splicing parts 121 corresponding to two adjacent sub-splitters 1 are assembled in a complementary plugging method. That is, the plug block 1211 of the first splicing part 121 is aligned with the insert frame 1212 of the second splicing part 121 to complete the embedded plugging, realizing the initial alignment and splicing of the two sub-splitters 1. After the plug block 1211 is fully embedded in the insert frame 1212 and the two are precisely matched and plugged in place, the first threaded plug rod 1213 is inserted through the first plug hole 1201 and the second plug hole 1202 in sequence. Then, the first fastening nut 1214 is locked with the end thread of the first threaded plug rod 1213 to complete the fixed connection between the plug block 1211 and the insert frame 1212, realizing the locking connection of adjacent splicing parts 121 and preventing the plugging structure from loosening.

[0033] In summary, the embedded insertion structure of the plug block 1211 and the plug frame 1212 enables rapid alignment and assembly of adjacent sub-splitters 1, achieving high assembly accuracy and fast alignment speed, thus improving the operational efficiency of equipment expansion assembly. Combined with the locking structure of the first threaded plug rod 1213 and the first fastening nut 1214, the insertion gap can be completely eliminated, preventing loosening or misalignment of the insertion parts due to vibration or external force during equipment use, ensuring the connection firmness of the spliced ​​structure. Furthermore, this insertion locking structure is simple in structure and easy to disassemble and assemble. When disassembling a single sub-splitter 1, only the first fastening nut 1214 needs to be loosened and the first threaded plug rod 1213 needs to be pulled out, without affecting the structure of the remaining assembled sub-splitters 1.

[0034] Reference Figure 4 , Figure 8 , Figure 9 As shown, in one embodiment, the connector 22 includes a connecting block 221 and an adapter plate 222, the adapter plate 222 being disposed on the side of the connecting block 221; The outer side of the splicing component 121 is provided with a locking groove 1210. The connecting block 221 is locked and connected to the splicing component 121 at the locking groove 1210 and fixed by fasteners. The adapter plate 222 is limited and connected to the limiting rod 21.

[0035] In this specific example, the connector 22 is a structure for connecting the limiting component 2 and the splicing fixing component 12. It mainly includes a connecting block 221, an adapter plate 222, and a baffle 223. The connecting block 221 is responsible for snapping and fixing with the splicing component 121, the adapter plate 222 is responsible for limiting and connecting with the limiting rod 21, and the baffle 223 serves to limit, shield, and seal for protection. The three components work together to achieve the connection and limiting functions of the connector 22. The outer surface of the splicing component 121 has a locking groove 1210, which provides a dedicated snap-fit ​​assembly position for the connecting block 221, enabling precise positioning and assembly of the connector 22 and the splicing fixing component 12.

[0036] When assembling the connector 22, the connector 221 is aligned with the locking groove 1210 on the outer side of the splice 121 and engaged, so that the connector 221 is completely fitted against the groove wall of the locking groove 1210 to complete the initial positioning. Then, fasteners such as the second threaded rod 224 and the second fastening nut 225 are used to lock it in place, thereby achieving a fixed connection between the connector 221 and the splice 121. It can be understood that the splice 121 has a third insertion hole 1203 on the side of the locking groove 1210, and the connector 221 has a fourth insertion hole 2210. The third insertion hole 1203 and the fourth insertion hole 2210 are matched and correspond to each other for inserting the second threaded rod 224. The baffle 223 is fixedly connected to one side of the connector 221. After the connector 221 is engaged, the baffle 223 just abuts against the four end faces of the locking groove 1210, forming a full-coverage shield and protection for the locking groove 1210. The adapter plate 222 is fixedly installed on the outside of the baffle 223. The baffle 223 enables a stable connection between the adapter plate 222 and the connecting block 221, ensuring the flatness of the adapter plate 222 and providing stable support for the subsequent assembly of the limit rod 21.

[0037] Optionally, the slot 1210 adopts a rectangular slot structure, and the connecting block 221 is a matching rectangular block structure. After being engaged, there is no circumferential shaking. The size of the baffle 223 is larger than the opening size of the slot 1210, which can completely cover the slot opening and provide comprehensive protection.

[0038] Reference Figure 9As shown, in one embodiment, the adapter plate 222 has an adapter hole 220, the limiting rod 21 is inserted into the adapter hole 220, the first end of the limiting rod 21 is provided with a limiting stop block 23 to prevent the first end of the limiting rod 21 from disengaging from the corresponding adapter hole 220; the limiting rod 21 has an external thread, and the second end of the limiting rod 21 is screwed with a limiting nut 24 to prevent the second end of the limiting rod 21 from disengaging from the corresponding adapter hole 220.

[0039] In this specific example, the adapter plate 222 has a through-hole 220 at the center of the plate body. The adapter hole 220 provides an assembly channel and a limiting reference for the limiting rod 21. The limiting rod 21 is a long column structure, which runs through the adapter holes 220 at both ends. A limiting block 23 and a limiting nut 24 are respectively set at both ends to form a two-way limiting structure, so as to lock and limit the limiting rod 21 and the two connecting parts 22, and prevent the limiting rod 21 from falling off or shifting.

[0040] When assembling the limiting rod 21, the second end of the limiting rod 21 is inserted through the adapter hole 220 of one adapter plate 222, passes through the outer space of all splicing sub-splitters 1 in sequence, and then exits through the adapter hole 220 of the other adapter plate 222. A limiting stop 23 is pre-installed at the first end of the limiting rod 21. The outer diameter of the limiting stop 23 is larger than the diameter of the adapter hole 220, allowing it to directly stop on the outer end face of the corresponding adapter plate 222, thus achieving limiting and preventing detachment at the first end. The rod body of the limiting rod 21 has an external thread. After the second end exits through the adapter hole 220, the limiting nut 24 is screwed and locked to the external thread of the limiting rod 21, causing the limiting nut 24 to fit against the outer end face of the other adapter plate 222, completing the stopping and limiting at the second end.

[0041] Therefore, through the assembly structure with limiting at both ends and penetrating in the middle, the connecting parts 22 at both ends can be firmly tightened and fixed, ensuring that the stacked structure of the sub-splitters 1 has no axial gap, completely eliminating the problem of sub-splitters 1 moving or loosening along the first direction, and greatly improving the structural compactness and stability of the overall equipment. The fixed limiting structure of the limiting block 23 requires no additional assembly, simplifying the assembly process at one end. The threaded locking structure of the limiting nut 24 can flexibly adjust the locking force to adapt to stacking assembly scenarios with different numbers of sub-splitters 1, making it highly adaptable. At the same time, the bidirectional anti-detachment structure can effectively prevent the limiting rod 21 from falling off and failing, ensuring the long-term stable operation of the limiting structure.

[0042] Reference Figure 3 , Figure 4 , Figure 6 As shown, in one embodiment, the splicing and fixing assembly 12 further includes two snap-fit ​​frames 122, which are disposed at a distance from each other on the inner side of the splicing member 121. One side of the splitter body 11 is embedded in one of the snap-fit ​​frames 122, and the other side of the splitter body 11 is embedded in another snap-fit ​​frame 122.

[0043] In this specific example, the splicing and fixing assembly 12, in addition to the splicing component 121, also includes two relatively spaced snap-fit ​​frames 122. The two snap-fit ​​frames 122 are fixedly mounted on the inner side of the splicing component 121, forming an integrated splicing and fixing carrier. The snap-fit ​​frames 122 are frame-type snap-fit ​​structures used to achieve quick and detachable assembly and disassembly of the splicing and fixing assembly 12 and the splitter body 11, and are the core structure connecting the splicing component 121 and the splitter body 11. Furthermore, insert plates 113 are fixedly installed on both sides of the splitter body 11. The insert plates 113 are plate-shaped insert structures that can be fitted into the snap-fit ​​frames 122.

[0044] During assembly, the insert plate 113 on one side of the splitter body 11 is inserted into the frame of one of the snap-fit ​​frames 122, and the insert plate 113 on the other side of the splitter body 11 is inserted into the frame of the other snap-fit ​​frame 122. By wrapping and snapping the insert plate 113 with the snap-fit ​​frames 122 on both sides, the initial positioning and assembly of the splitter body 11 and the splicing fixing component 12 is achieved, so that the splitter body 11 is firmly snapped between the two snap-fit ​​frames 122, and the overall docking of the splitter body 11 and the splicing component 121 is completed.

[0045] The snap-fit ​​structure between the double-sided snap-fit ​​frame 122 and the insert plate 113 enables rapid alignment and assembly of the splitter body 11 and the splicing fixing component 12. The symmetrical snap-fit ​​method on both sides ensures uniform force distribution, preventing unilateral force displacement of the splitter body 11 and guaranteeing assembly coaxiality and flatness. The frame-type snap-fit ​​structure provides strong enclosure, effectively limiting the relative displacement between the splitter body 11 and the splicing fixing component 12, improving the structural integrity of a single sub-splitter 1, and laying the foundation for the stable splicing of multiple sets of sub-splitters 1 in the future.

[0046] Reference Figures 4-6 As shown, in one embodiment, the interface board 111 is provided with a connecting plate 112 at one end, the connecting plate 112 is provided with a first connecting hole 1120, one of the snap-fit ​​frames 122 is provided with a second connecting hole 1220, and a third connecting hole 110 is provided on one side of the splitter body 11. The interface board 111, the snap-fit ​​frame 122 and the splitter body 11 are fastened together by fasteners that pass through the first connection hole 1120, the second connection hole 1220 and the third connection hole 110 in sequence.

[0047] In this specific example, the end of the interface board 111 extends to provide a connecting plate 112, which is a load-bearing structure for fastening connection. The connecting plate 112 has a first connecting hole 1120 on its body; the corresponding snap-fit ​​frame 122 has a second connecting hole 1220 on its side wall; and one of the insert plates 113 of the splitter body 11 has a third connecting hole 110. The three connecting holes are coaxially corresponding to each other, forming a through-type fastening channel to achieve an integrated fastening connection of the three.

[0048] During assembly, after the insert plate 113 of the splitter body 11 is inserted into the snap-fit ​​frame 122 and the interface plate 111 is attached to the end face of the splitter body 11, the connecting plate 112 is attached to the outer wall of the snap-fit ​​frame 122. The position is adjusted to ensure that the first connecting hole 1120, the second connecting hole 1220, and the third connecting hole 110 are completely coaxially aligned. Then, fasteners are sequentially inserted through the first connecting hole 1120, the second connecting hole 1220, and the third connecting hole 110. Through the locking force of the fasteners, such as the fastening bolts 124, the interface plate 111, the snap-fit ​​frame 122, and the splitter body 11 are tightly pressed and fixed, achieving a tight and reliable connection between the three.

[0049] Reference Figures 1-6 As shown, in one embodiment, any of the sub-splitters 1 further includes a heat dissipation component 13, and the heat dissipation component 13 is disposed between two adjacent splicing and fixing components 12 along the first direction.

[0050] In this specific example, the heat dissipation component 13 is a dedicated heat dissipation structure, which is adapted to be installed between every two adjacent splicing and fixing components 12 along the first direction. That is, a set of heat dissipation components 13 is provided between each group of adjacent stacked sub-splitters 1 to achieve a full-coverage heat dissipation layout and specifically solve the heat dissipation problem when multiple sub-splitters 1 are stacked and used.

[0051] During assembly, the heat dissipation component 13 is positioned between the gaps of two adjacent splicing and fixing components 12, between the splicing structures of the upper and lower sub-splitters 1. It is assembled in conjunction with the splicing and fixing components 12 without occupying additional external space of the equipment, making full use of the gaps created by the stacking and splicing. The heat dissipation component 13 is arranged at the splicing gaps of all adjacent sub-splitters 1, forming a continuous and uniform heat dissipation structure layout that covers the heat dissipation area of ​​all stacked sub-splitters 1.

[0052] The arrangement of the heat dissipation component 13 can effectively increase the distance between two adjacent splitter bodies 11, avoiding the problem of excessively tight fit and lack of heat dissipation gaps when multiple sub-splitters 1 are stacked. By increasing the gap distance between adjacent splitter bodies 11, a smooth heat dissipation airflow is formed, which greatly improves the overall air circulation efficiency of the equipment, improves the heat dissipation conditions of the stacked structure, avoids the accumulation of heat generated by the equipment during long-term operation, prevents high temperature from affecting the optical path transmission accuracy and service life of the optical splitter, and ensures long-term stable operation of the equipment.

[0053] Reference Figure 1 , Figure 6 As shown, in one embodiment, among the two adjacent splicing and fixing components 12, the heat dissipation component 13 is fixedly connected to one of them and detachably connected to the other.

[0054] In this specific example, the heat dissipation component 13 adopts an asymmetrical connection method with one end fixed and the other end detachable, and is assembled with two adjacent splicing and fixing components 12. This connection method takes into account both the assembly stability and the ease of disassembly and assembly of the heat dissipation component 13, and is suitable for the modular splicing and expansion of the sub-splitter 1.

[0055] For two adjacent splicing and fixing components 12, one side of the heat dissipation component 13 is fixedly connected to one of the splicing and fixing components 12. This can be achieved by welding, integral molding, or permanent bolt locking, ensuring the structural stability of the connection. The other side of the heat dissipation component 13 is assembled with the other splicing and fixing component 12 by detachable snap-fit ​​or bolt connection. This allows the heat dissipation component 13 to be freely disassembled, installed, inspected, and replaced without disassembling the fixing end structure.

[0056] Reference Figure 6 , Figure 7 As shown, in one embodiment, the splicing and fixing assembly 12 includes a splicing member 121 and two snap-fit ​​frames 122, the two snap-fit ​​frames 122 being disposed at a distance from each other along a second direction on the inner side of the splicing member 121; The heat dissipation assembly 13 includes a radiator 131 and two heat dissipation plates 132. One of the heat dissipation plates 132 is fixedly connected to the top of one of the two snap-fit ​​frames 122, and the radiator 131 is mounted on the heat dissipation plate 132. The radiator 131 can output airflow toward the other heat dissipation plate 132. The other heat dissipation plate 132 is fixedly connected to the top of the other of the two snap-fit ​​frames 122, and the heat dissipation plate 132 is provided with heat dissipation holes 1320 through it along a second direction.

[0057] In this specific example, the two snap-fit ​​frames 122 of the splicing fixing component 12 are arranged at intervals relative to each other on the inner side of the splicing piece 121 along a second direction, which is perpendicular to the first direction and is a transverse arrangement direction; see reference Figure 1 , Figure 2 As shown, the first direction is Figure 1 , Figure 2 In the direction 'a', the second direction is... Figure 1 , Figure 2 In the direction b. The heat dissipation component 13 consists of a heat sink 131 and two heat dissipation plates 132. The two heat dissipation plates 132 are respectively mounted on the top of the two snap-fit ​​frames 122 to form a symmetrical heat dissipation support structure.

[0058] During assembly, one heat sink 132 is fixedly connected to the top end face of the corresponding snap-fit ​​frame 122. The heat sink 132 is used to mount and fix the radiator 131, with the radiator 131's air outlet direction facing the other heat sink 132, allowing for directional airflow. The other heat sink 132 is fixedly connected to the top end face of another snap-fit ​​frame 122, and this heat sink 132 has several through-holes 1320 along a second direction, serving as airflow channels. The directional airflow generated when the radiator 131 is working can pass through the gap between the two heat sinks 132 and ultimately exit through the through-holes 1320, forming a complete convective cooling cycle. This accelerates the rapid exhaust of hot air around the splitter body 11, significantly improving heat dissipation efficiency.

[0059] Reference Figure 4 , Figure 7 As shown, in one embodiment, the heat sink 131 includes a drive motor 1311 and a fan blade 1312. The drive motor 1311 is mounted on the outer side of the heat sink 132 facing away from the other heat sink 132. The fan blade 1312 is disposed on the inner side of the heat sink 132 facing the other heat sink 132. The output shaft of the drive motor 1311 is connected to the fan blade 1312 to drive the fan blade 1312 to rotate.

[0060] In this specific example, the radiator 131 is mainly composed of a drive motor 1311 and a fan blade 1312. The drive motor 1311 is a power output component, and the fan blade 1312 is an airflow generating component. The two work together to form an active heat dissipation structure, realizing automated forced convection heat dissipation, which is different from passive heat dissipation and greatly improves heat dissipation efficiency.

[0061] During assembly, the drive motor 1311 is bolted to the outer side of the heat sink 132 facing away from the other heat sink 132, with the installation position exposed to facilitate motor wiring, maintenance, and heat dissipation, thus preventing heat buildup in the motor itself. The fan blade 1312 is arranged on the inner side of the heat sink 132 facing the other heat sink 132, inside the air duct of the two heat sinks 132. When the drive motor 1311 is working, its output shaft drives the fan blade 1312 to rotate at high speed, generating directional axial airflow and achieving forced convection of air inside the air duct. This can actively accelerate the air circulation inside the equipment, significantly improving heat dissipation efficiency compared to natural heat dissipation. It can quickly remove the continuous heat generated when multiple stacked sub-splitters 1 are working, completely solving the problem of high temperature accumulation in densely stacked equipment.

[0062] Reference Figure 7 As shown, in one embodiment, the number of fan blades 1312 is two, and the heat sink 131 also includes a transmission assembly. A part of the transmission assembly is connected to the drive motor 1311 and one of the fan blades 1312, and another part of the transmission assembly is connected to the other fan blade 1312.

[0063] In this specific example, two fan blades 1312 are provided. The double-blade structure can further increase the airflow output and enhance the heat dissipation effect. At the same time, a transmission component is provided to realize the working mode of single motor driving the synchronous rotation of the two fan blades, eliminating the need for dual motors, simplifying the equipment structure, and reducing energy consumption and cost. More specifically, the transmission component consists of a drive rod 1313, a drive pulley 1314, a driven rod 1315, a driven pulley 1316, and a transmission belt 1317, forming a complete belt drive system.

[0064] In terms of structural connection and power transmission, the output end of the drive motor 1311 is fixedly connected to the drive rod 1313 via a coupling to ensure lossless power transmission. The end of the drive rod 1313 away from the motor is keyed to the drive pulley 1314 to achieve synchronous rotation. The driven rod 1315 is rotatably mounted on the outside of the heat sink 132 via a bearing to ensure that the driven rod 1315 rotates flexibly without jamming. The end of the driven rod 1315 is keyed to the driven pulley 1316. The drive pulley 1314 and the driven pulley 1316, which are of the same specification, are tightly fitted together by a transmission belt 1317. When the drive motor 1311 is working, it drives the drive pulley 1314 to rotate, and drives the driven pulley 1316 to rotate synchronously through the transmission belt 1317, ultimately achieving coaxial synchronous rotation of the two fan blades 1312. Meanwhile, annular baffles 1318 are integrally installed on both sides of the two pulleys. The diameter of the annular baffles 1318 is larger than that of the pulleys, which can limit the transmission belt 1317 to the left and right to prevent the belt from falling off. Both pulleys are fixed with fan blades 1312 by bolts, and fan blades 1312 rotate coaxially with the pulleys.

[0065] The aforementioned structure, in which a single motor drives the synchronous rotation of the two fan blades 1312, can significantly improve airflow output efficiency, increase airflow in the heat dissipation duct, and further enhance the equipment's heat dissipation capacity. This makes it suitable for high-heat scenarios involving large capacity and stacked multi-unit sub-splitters 1. The belt drive structure provides smooth transmission, low noise, and good buffering, ensuring that the two fan blades 1312 rotate at the same speed and synchronously, preventing airflow turbulence and ensuring uniform heat dissipation. The limiting structure of the annular baffle 1318 effectively prevents the transmission belt 1317 from running off-center or falling off, ensuring long-term stable operation of the transmission structure, reducing the probability of equipment failure, and improving the working stability and service life of the heat dissipation component 13.

[0066] Reference Figure 6 As shown, in one embodiment, a locking frame 123 is fixedly connected to the bottom of the locking frame 122. The locking frame 123 is used to detachably lock the heat dissipation plate 132 of the heat dissipation assembly 13 fixedly connected to the adjacent splicing fixing assembly 12.

[0067] In this specific example, a locking frame 123 is fixedly installed at the bottom of the locking frame 122. The locking frame 123 is a frame-type locking and positioning structure, which is specifically used to realize the detachable locking assembly of adjacent splicing fixing components 12 and heat dissipation components 13. It is a key structure that assists in the positioning and fixing of heat dissipation components 13.

[0068] Specifically, the locking frame 123 is fixed at the bottom of the locking frame 122, forming an integrated structure with the locking frame 122. During assembly, the end of the heat dissipation plate 132 of the heat dissipation component 13 fixedly connected to the lower layer splicing and fixing component 12 is aligned with the upper layer locking frame 123 and embedded and locked, so that the heat dissipation plate 132 is limited and fixed inside the locking frame 123, realizing the quick alignment and assembly of the adjacent heat dissipation component 13 and the splicing and fixing component 12. After positioning, it is further fixed by bolts to complete the positioning and locking of the heat dissipation structure, ensuring that the heat dissipation component 13 and the locking frame 123 are firmly connected and avoiding shaking during operation.

[0069] This application utilizes a modular sub-splitter splicing structure to achieve flexible capacity expansion of optical splitters. The number of sub-splitters can be increased or decreased according to actual optical path requirements without replacing the entire large-capacity equipment, significantly reducing equipment upgrade and maintenance costs. The plug-in locking structure of the splicing fixing components ensures a secure splicing of multiple sub-splitters and facilitates easy assembly and disassembly. Limiting components can lock and limit the overall splicing structure from all directions, improving the overall structural stability of the equipment. Simultaneously, the accompanying heat dissipation components effectively widen the heat dissipation gaps between adjacent sub-splitters, forming unobstructed directional heat dissipation channels. Through active forced convection cooling, the heat generated by the equipment is quickly dissipated, avoiding heat accumulation and high-temperature failures caused by dense stacking of multiple sub-splitters. This effectively ensures the optical path transmission accuracy and long-term operational stability of the optical splitter. The equipment boasts strong overall adaptability, high stability, low maintenance costs, and significant practicality.

[0070] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A splicing and expansion type optical splitter, characterized in that, The splicing expansion optical splitter includes at least two sub-splitters (1), and any one of the sub-splitters (1) includes: Splitter body (11), one side of which is provided with an interface board (111), the interface board (111) being configured for optical path docking. A splicing and fixing component (12) is detachably connected to the splitter body (11) along the circumferential direction; the splicing and fixing components (12) of two adjacent sub-splitters (1) are plugged into each other along a first direction; the first direction corresponds to the thickness direction of the splitter body (11); The splicing expansion optical splitter also includes a limiting component (2), which includes a limiting rod (21) and two connectors (22). The two connectors (22) are arranged at intervals relative to each other. One of the two connectors (22) is detachably connected to a splicing fixing component (12) at one end along the first direction, and the other of the two connectors (22) is detachably connected to a splicing fixing component (12) at the other end along the first direction. The first end of the limiting rod (21) is limited to one of the connectors (22), and the second end of the limiting rod (21) is limited to the other connector (22).

2. The splicing and expansion optical splitter according to claim 1, characterized in that, The splicing and fixing assembly (12) includes a splicing member (121), one end of which is constructed as an insert (1211) along a first direction and the other end is constructed as an insert frame (1212); the insert (1211) of one of two adjacent splicing and fixing assemblies (12) is inserted and connected to the insert frame (1212) of the other.

3. The splicing and expansion optical splitter according to claim 2, characterized in that, The connector (22) includes a connecting block (221) and an adapter plate (222), the adapter plate (222) being disposed on the side of the connecting block (221); The outer side of the splicing component (121) is provided with a slot (1210). The connecting block (221) is connected to the splicing component (121) at the slot (1210) and fixed by fasteners. The adapter plate (222) is connected to the limiting rod (21) for limiting.

4. The splicing and expansion optical splitter according to claim 3, characterized in that, The adapter plate (222) has an adapter hole (220), and the limiting rod (21) is inserted into the adapter hole (220). The first end of the limiting rod (21) is provided with a limiting stop (23) to prevent the first end of the limiting rod (21) from disengaging from the corresponding adapter hole (220). The limiting rod (21) has an external thread, and the second end of the limiting rod (21) is screwed with a limiting nut (24) to prevent the second end of the limiting rod (21) from disengaging from the corresponding adapter hole (220).

5. The splicing and expansion optical splitter according to claim 2, characterized in that, The splicing and fixing component (12) also includes two snap-fit ​​frames (122), which are arranged at intervals on the inner side of the splicing component (121); One side of the splitter body (11) is embedded in one of the snap-fit ​​frames (122), and the other side of the splitter body (11) is embedded in another snap-fit ​​frame (122).

6. The splicing and expansion optical splitter according to claim 5, characterized in that, The interface board (111) has a connecting plate (112) at one end, the connecting plate (112) has a first connecting hole (1120), one of the snap-fit ​​frames (122) has a second connecting hole (1220), and one side of the splitter body (11) has a third connecting hole (110). The interface board (111), the snap-fit ​​frame (122), and the splitter body (11) are fastened together by fasteners that pass through the first connection hole (1120), the second connection hole (1220), and the third connection hole (110) in sequence.

7. The splicing and expansion optical splitter according to claim 1, characterized in that, Each of the sub-splitters (1) further includes a heat dissipation component (13), and the heat dissipation component (13) is provided between two adjacent splicing fixing components (12) along the first direction.

8. The splicing and expansion optical splitter according to claim 7, characterized in that, In the two adjacent splicing and fixing components (12), the heat dissipation component (13) is fixedly connected to one of them and detachably connected to the other.

9. The splicing and expansion optical splitter according to claim 8, characterized in that, The splicing and fixing assembly (12) includes a splicing piece (121) and two snap-fit ​​frames (122), the two snap-fit ​​frames (122) being disposed at a distance from each other along a second direction on the inner side of the splicing piece (121); The heat dissipation assembly (13) includes a radiator (131) and two heat dissipation plates (132). One of the heat dissipation plates (132) is fixedly connected to the top of one of the two snap-fit ​​frames (122), and the heat dissipation plate (132) is equipped with the radiator (131). The radiator (131) can output airflow toward the other heat dissipation plate (132). The other heat dissipation plate (132) is fixedly connected to the top of the other of the two snap-fit ​​frames (122), and the heat dissipation plate (132) is provided with heat dissipation holes (1320) through it along the second direction.

10. The splicing and expansion optical splitter according to claim 9, characterized in that, The radiator (131) includes a drive motor (1311) and a fan blade (1312). The drive motor (1311) is mounted on the outer side of the heat sink (132) facing away from the other heat sink (132). The fan blade (1312) is disposed on the inner side of the heat sink (132) facing the other heat sink (132). The output shaft of the drive motor (1311) is connected to the fan blade (1312) to drive the fan blade (1312) to rotate.

11. The splicing and expansion optical splitter according to claim 10, characterized in that, The number of fan blades (1312) is two. The radiator (131) also includes a transmission assembly. A part of the transmission assembly is connected to the drive motor (1311) and one of the fan blades (1312), and the other part of the transmission assembly is connected to the other fan blade (1312).

12. The splicing and expansion optical splitter according to claim 9, characterized in that, The bottom of the snap-fit ​​frame (122) is fixedly connected to the snap-fit ​​frame (123), which is used to detachably snap the heat sink plate (132) of the heat sink assembly (13) fixedly connected to the adjacent splicing fixing assembly (12).

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