Combined cavity coupler

Abstract

The utility model discloses a combined type cavity coupler, and specifically relates to the cavity coupler field, the combined type cavity coupler comprises an upper shell, a lower shell, a wiring terminal, a main guide rod and a coupling rod, the upper shell is movably connected with the lower shell, the internal space of the upper shell and the internal space of the lower shell are combined to form an inner cavity, the main guide rod and the coupling rod are located in the inner cavity, and the wiring terminal is connected with the coupling rod. The wiring ends are installed on the outer wall of the lower shell, the wiring ends are connected through the main guide rod and the coupling rod, a plurality of metal fins are installed at the bottom of the inner cavity, a metal pipeline penetrates through the metal fins, and the interior of the metal pipeline is hollow to form a first channel. Through the heat conduction design of the modularized shell, the metal fins, the metal pipeline and a plurality of channels and in combination with active air flow circulation of the cooling fan, the temperature of the inner cavity is remarkably reduced, signal attenuation or element damage caused by overheating is avoided, the heat dissipation system is efficiently compounded, the internal structure is stabilized, and the service life is prolonged. The problems that a traditional integrated coupler is difficult to maintain and insufficient in heat dissipation are solved.

Description

Technical Field

[0001] This utility model relates to the field of cavity couplers, and more specifically, to a combined cavity coupler. Background Technology

[0002] A cavity coupler is a component that splits optical signals from a single optical fiber into multiple optical fibers. It belongs to the field of passive optical components and is used in telecommunications networks, cable television networks, subscriber loop systems, and local area networks. Cavity couplers can withstand relatively high power, with a maximum power handling capacity of up to 200W, and have low insertion loss. However, because many existing cavity couplers are of a single, integrated structure, problems with the wiring terminals or internal circuit components cannot be promptly repaired or replaced. Furthermore, in hot summer environments, cavity couplers operating outdoors require an external housing for sealing and protection to reduce the impact of external dust. Therefore, during prolonged operation, the significant heat released by the internal circuit components cannot be effectively dissipated within the relatively sealed space of the housing, and the resulting temperature rise can easily affect its normal operation. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a combined cavity coupler, including an upper shell, a lower shell, terminals, a main guide rod, and a coupling rod. The upper shell and the lower shell are movably connected, and the internal spaces of the upper shell and the lower shell are combined to form an inner cavity. The main guide rod and the coupling rod are located inside the inner cavity. The terminals are installed on the outer wall of the lower shell and are connected to each other through the main guide rod and the coupling rod. Several metal fins are installed at the bottom of the inner cavity, and metal pipes pass through the metal fins. The metal pipes are hollow inside to form a first channel. The two ends of the metal pipes extend to both sides of the inner cavity, and the first channel communicates with the outside of the lower shell.

[0004] In a preferred embodiment, a plurality of airflow pipes are inserted into the upper housing. The airflow pipes extend through the upper housing into the inner cavity and are connected to the metal pipe. The interior of the airflow pipes is hollow to form a second channel, and the second channel is connected to the first channel.

[0005] In a preferred embodiment, the top of the upper housing has a recessed groove, a cooling fan is installed in the groove, the top of the airflow pipe is located in the groove and is flush with the surface of the groove, and the second channel communicates with the inside of the groove.

[0006] In a preferred embodiment, a plurality of upper screw holes are provided through the edge of the upper shell surface, and a plurality of posts that cooperate with the upper screw holes are provided at the edge of the inner cavity, and the posts are provided with lower screw holes with the same inner diameter as the upper screw holes.

[0007] In a preferred embodiment, the main guide rod and the coupling rod are of the same height, and pressure rods are attached to the top and bottom of the main guide rod and the coupling rod, with both ends of the pressure rods attached to the side walls of the inner cavity.

[0008] In a preferred embodiment, a limiting post is attached to the outer side of each end of the pressure rod, the limiting post is fixed to the inner wall of the inner cavity, and a screw rod passes through between the upper and lower pressure rods.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] 1. This utility model significantly reduces the internal chamber temperature through a modular shell, metal fins, metal pipes and multiple channels for heat conduction design, combined with the active airflow circulation of the cooling fan, avoiding signal attenuation or component damage due to overheating. The efficient composite heat dissipation system and stable internal structure solve the problems of difficult maintenance and insufficient heat dissipation of traditional integrated couplers.

[0011] 2. The first and second channels are staggered from the inner cavity inside the housing, ensuring the integrity and sealing of the inner cavity. This ensures heat dissipation while preventing external dust and moisture from affecting the internal components. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional schematic diagram of the upper shell portion of this utility model;

[0014] Figure 3 This is a schematic diagram of the interior of the lower shell of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1 Upper housing, 2 Lower housing, 3 Terminal, 4 Main guide rod, 5 Coupling rod, 6 Inner chamber, 7 Metal fins, 8 Metal pipe, 9 First channel, 10 Airflow pipe, 11 Second channel, 12 Groove, 13 Cooling fan, 14 Upper screw hole, 15 Post rod, 16 Lower screw hole, 17 Pressure rod, 18 Limiting post, 19 Screw. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0017] like Figure 1-3 The illustrated combined cavity coupler includes an upper housing 1, a lower housing 2, a terminal block 3, a main guide rod 4, and a coupling rod 5. The upper housing 1 and the lower housing 2 are movably connected, and the internal spaces of the upper housing 1 and the lower housing 2 are combined to form an inner cavity 6. The main guide rod 4 and the coupling rod 5 are located inside the inner cavity 6. The terminal block 3 is installed on the outer wall of the lower housing 2, and the terminal blocks 3 are connected to each other through the main guide rod 4 and the coupling rod 5. Several metal fins 7 are installed at the bottom of the inner cavity 6, and metal pipes 8 pass through the several metal fins 7. The metal pipes 8 are hollow inside to form a first channel 9. The two ends of the metal pipes 8 extend to both sides of the inner cavity 6, and the first channel 9 communicates with the outside of the lower housing 2.

[0018] Based on the above, the metal fins 7 installed at the bottom of the inner chamber 6 absorb the heat generated by the internal components through heat conduction and are connected to the metal pipes 8 that pass through the fins. The first channel 9 inside the metal pipe 8 is connected to the outside of the lower shell 2 to form a passive heat dissipation path, which conducts the heat to the external environment. This can ensure the airtightness of the inner chamber 6 and prevent external dust and moisture from affecting the internal components.

[0019] Furthermore, in order to increase the flow rate of airflow and heat within the first channel 9, several airflow pipes 10 are inserted into the upper housing 1. The airflow pipes 10 extend through the upper housing 1 into the inner cavity 6 and connect to the metal pipe 8. The interior of the airflow pipes 10 is hollow, forming a second channel 11, which is connected to the first channel 9. A recessed groove 12 is provided on the top of the upper housing 1, and a cooling fan 13 is installed in the groove 12. The top of the airflow pipes 10 is located in the groove 12 and is flush with the surface of the groove 12. The second channel 11 is connected to the interior of the groove 12.

[0020] Based on the above, after the cooling fan 13 is started, it drives the airflow through the second channel 11 of the airflow pipe 10 into the first channel 9 of the metal pipe 8 in the inner chamber 6. The airflow flows along the first channel 9 of the metal pipe 8, accelerating the dissipation of heat from the metal fins 7 to the outside, forming a dual heat dissipation mechanism of "forced convection + heat conduction".

[0021] Furthermore, the passive heat conduction design of the metal fins 7 and metal pipes 8, combined with the active airflow circulation of the cooling fan 13, significantly reduces the temperature of the internal chamber 6, avoiding signal attenuation or component damage due to overheating.

[0022] Furthermore, the number of airflow pipes 10, metal fins 7, and cooling fans 13 can be flexibly increased or decreased according to heat dissipation requirements to adapt to different power scenarios.

[0023] The first channel 9 and the second channel 11 are offset from the inner chamber 6 inside the housing, which ensures the integrity and sealing of the inner chamber 6 and avoids the impact of external dust and moisture on the internal components while ensuring heat dissipation.

[0024] The upper housing 1 has several upper screw holes 14 penetrating through the edge of its surface, and the inner cavity 6 has several pillars 15 that cooperate with the upper screw holes 14 at its edge. The pillars 15 have lower screw holes 16 with the same inner diameter as the upper screw holes 14.

[0025] Based on the above, the upper housing 1 and the lower housing 2 are detachably connected by the cooperation of the upper screw hole 14 and the column rod 15. After being fixed with bolts, the housing can be quickly separated, which facilitates the inspection or replacement of the internal main rod 4, coupling rod 5 and circuit components, thus solving the problem of difficult maintenance of traditional integrated structures.

[0026] The main rod 4 and the coupling rod 5 are at the same height. Pressure rods 17 are attached to the top and bottom of the main rod 4 and the coupling rod 5. The two ends of the pressure rods 17 are attached to the side walls of the inner cavity 6. Limiting posts 18 are attached to the outer sides of the two ends of the pressure rods 17. The limiting posts 18 are fixed to the inner wall of the inner cavity 6. A screw 19 passes through the two pressure rods 17.

[0027] Based on the above, the top and bottom of the main rod 4 and the coupling rod 5 are fitted together by the pressure rod 17. The two ends of the pressure rod 17 are fixed to the side wall of the inner cavity 6 by the limiting post 18, and the pressure rod 17 is passed through the top and bottom by the screw 19, which enhances the mechanical stability of the main rod 4 and the coupling rod 5, reduces the impact of vibration or external impact on signal transmission, and avoids signal transmission loss caused by deviation.

[0028] Furthermore, the upper housing 1 and the lower housing 2 can be quickly disassembled, facilitating the replacement of damaged terminals 3 or internal components, reducing maintenance costs and time. The main guide rod 4 and the coupling rod 5 are fixed by the pressure rod 17, supporting individual adjustment or replacement without the need to replace the entire device.

[0029] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A combined cavity coupler, comprising an upper shell, a lower shell, a terminal, a main guide rod and a coupling rod, the upper shell is movably connected with the lower shell, the inner space of the upper shell and the lower shell is combined to form an inner chamber, the main guide rod and the coupling rod are located in the inner chamber, the terminal is installed on the outer wall of the lower shell, and the terminals are connected through the main guide rod and the coupling rod, characterized in that, The bottom of the inner chamber is provided with a plurality of metal fins, and a metal pipeline is arranged between the metal fins and extends to both sides of the inner chamber, and the metal pipeline is hollow to form a first channel.

2. A combined cavity coupler according to claim 1, characterized in that: A plurality of airflow tubes are inserted into the upper shell and extend to the inner chamber to be connected with the metal pipeline, and the airflow tubes are hollow to form a second channel which is communicated with the first channel.

3. A combined cavity coupler according to claim 2, characterized in that: A recessed groove is formed in the top of the upper shell, and a cooling fan is arranged in the groove, and the top of the airflow tube is located in the groove and flush with the surface of the groove.

4. A combined cavity coupler according to claim 1, characterized in that: A plurality of upper screw holes are formed in the surface edge of the upper shell, and a plurality of column rods are arranged at the edge of the inner chamber and matched with the upper screw holes.

5. A combined cavity coupler according to claim 1, characterized in that: The main guide rod and the coupling rod have the same height, and a pressing rod is attached to the top and bottom of the main guide rod and the coupling rod.

6. A combined cavity coupler according to claim 5, characterized in that: The outer side of each end of the pressing rod is attached to a limiting column which is fixed on the inner wall of the inner chamber, and a screw rod is arranged between the upper and lower pressing rods.

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