Lightweight four-channel SFP interface module

Abstract

The utility model provides a lightweight four-channel SFP interface module, which comprises a lower shell, an optical transceiver assembly is arranged on the lower shell, a side shell and an upper shell are arranged on the lower shell outside the optical transceiver assembly in a matching manner, assembling assemblies are arranged among the lower shell, the side shell and the upper shell in a mutual matching manner, and a pull ring is arranged at one end of the side shell opposite to the optical transceiver assembly. According to the utility model, reliable assembly of the lower shell, the side shell and the upper shell is realized through the assembly component, the shell can be conveniently split into standard parts to realize small-batch production, the optical module can be applied to the field of miniaturized optical modules in the market, and the reliability of the optical module is ensured while high integration of the optical module is maintained; through reasonable assembly of the components, the light weight of the shell structure comprising the lower shell, the side shell and the upper shell is realized, and meanwhile, the light path is ensured to be stable and reliable, and the PCB component is stable; a heat dissipation space is reserved, and the heat dissipation efficiency is improved; and the manufacturing cost and the maintenance cost are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of optical components, systems or instruments, and in particular to a lightweight four-channel SFP interface module. Background Technology

[0002] With the continuous development of optical communication technology, the integration level of optical switches is becoming increasingly higher, and the number of optical modules used in a single switch is also increasing significantly. An optical module consists of optoelectronic devices, functional circuits, and optical interfaces. It converts electrical signals into optical signals at the transmitting end, transmits them through optical fiber, and then converts the optical signals back into electrical signals at the receiving end, thus completing the information transmission. In an optical module, the optoelectronic devices and functional circuits are collectively referred to as the optical transmission module.

[0003] To meet market demand for higher-density, high-speed pluggable solutions, the Quad-Small Form-factor Pluggable (QSFP) interface has been adopted as an optical fiber solution in the field of optical communication technology. The QSFP interface offers superior speed and density compared to the 4-channel CX4 interface, supporting data transmission across four channels at 10Gbps per channel within the same port volume as the XFP.

[0004] However, the existing four-channel SFP interface has the following drawbacks:

[0005] (1) Although the size of a quad-channel SFP interface is usually not large, its weight is still considerable in high-density applications;

[0006] (2) Considering the high-density design of the four-channel SFP interface, it will generate a lot of heat when it is working. Without effective heat dissipation measures, it will be easy to affect its normal operation.

[0007] (3) High cost;

[0008] (4) In high-density applications, maintenance and replacement are less efficient. Utility Model Content

[0009] This invention solves the problems existing in the prior art and provides a lightweight four-channel SFP interface module.

[0010] The technical solution adopted by this utility model is a lightweight four-channel SFP interface module, including a lower shell, an optical transceiver assembly on the lower shell, a side shell and an upper shell on the lower shell outside the optical transceiver assembly, and an assembly assembly between the lower shell, the side shell and the upper shell. A pull ring is provided at the end of the side shell facing away from the optical transceiver assembly.

[0011] Preferably, the optical transceiver assembly includes a PCB board, and four independently packaged optical receivers and optical transmitters are electrically connected to the PCB board; one end of the PCB board is provided with a conductive contact, and the other end is provided with an interface through an optical fiber connector.

[0012] Preferably, all the optical receivers and optical transmitters are arranged symmetrically in pairs on both sides of the axis of the PCB board.

[0013] Preferably, one or more slots are symmetrically provided on the lower edges of both sides of the upper shell that mates with the PCB board, and connecting reinforcement parts are distributed on both sides of the lower shell at the bottom of the slots; a cavity is provided in the lower shell that mates with the PCB board.

[0014] Preferably, the assembly includes stepped structures on both outer edges of the lower shell, with a slot in the middle of the stepped structure, and the connecting ends of the side shell and the upper shell correspondingly fitted into the slot.

[0015] Preferably, the assembly further includes a first fastener located at the connection end of the side shell and the upper shell, with the first fastener of the side shell and the upper shell having an interference fit.

[0016] Preferably, the outer edges of the lower shell and the upper shell facing away from the pull ring are respectively provided with L-shaped connecting ends, and the two L-shaped connecting ends are symmetrically arranged.

[0017] Preferably, the side of the connection between the upper shell and the side shell facing the L-shaped connection end is provided with a sloping structure to match the lower shell.

[0018] Preferably, the assembly further includes a second fastener disposed on the mating surface of the side shell and the lower shell; the second fasteners on both sides are arranged symmetrically or asymmetrically.

[0019] Preferably, the inner side of the upper shell is provided with an assembly groove facing the fiber optic connector, and the fiber optic connector that mates with the assembly groove is provided with assembly rods on both sides.

[0020] This utility model provides a lightweight four-channel SFP interface module, including a lower shell, on which an optical transceiver assembly is provided. A side shell and an upper shell are provided on the lower shell outside the optical transceiver assembly. An assembly assembly is provided between the lower shell, the side shell and the upper shell. A pull ring is provided at the end of the side shell facing away from the optical transceiver assembly.

[0021] The beneficial effects of this utility model are as follows:

[0022] (1) The assembly of the lower shell, side shell and upper shell is achieved by assembling components, which makes it easy to disassemble the shell into standardized parts for small-batch production. It can be applied to the field of miniaturized optical modules in the market, ensuring its reliability while maintaining the high integration of optical modules.

[0023] (2) By rationally assembling components, it is possible to make the shell structure, including the lower shell, side shell and upper shell, lightweight, while ensuring the stability and reliability of the optical path and the stability of the PCB assembly.

[0024] (3) Retain space for heat dissipation and improve heat dissipation efficiency;

[0025] (4) Reduce manufacturing and maintenance costs. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of this utility model with the side shell, top shell, and pull ring removed;

[0028] Figure 3 This is a cross-sectional view of the present invention.

[0029] Figure 4 This is a schematic diagram of the longitudinal section structure of the present invention along the axis of the PCB board;

[0030] Figure 5 This is a three-dimensional structural diagram of the present invention from a bottom-view perspective after the lower shell has been removed. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the embodiments, but the scope of protection of the present invention is not limited thereto.

[0032] This utility model relates to a lightweight four-channel SFP interface module, including a lower shell 1, on which an optical transceiver component is provided. A side shell 2 and an upper shell 3 are provided on the lower shell 1 outside the optical transceiver component. An assembly component is provided between the lower shell 1, the side shell 2 and the upper shell 3. A pull ring 4 is provided at the end of the side shell 2 facing away from the optical transceiver component.

[0033] In this utility model, the outer shell of the module is divided into a lower shell 1, a side shell 2 and an upper shell 3, and is assembled by an assembly component. Thus, the module can be assembled as a whole with only a small number of fasteners. Moreover, the assembly component uses the principle of "mortise and tenon structure", which allows for more choices of the material of the outer shell. Lightweight but high-strength materials can be selected to achieve weight reduction.

[0034] The optical transceiver assembly includes a PCB board 5, and four independently packaged optical receivers 6 and optical transmitters 7 are electrically connected to the PCB board 5. One end of the PCB board 5 is provided with a conductive contact 8, and the other end is provided with an interface 10 through an optical fiber connector 9.

[0035] All of the aforementioned optical receivers 6 and optical transmitters 7 are symmetrically arranged in pairs on both sides of the axis of the PCB board 5.

[0036] One or more slots 11 are symmetrically provided on the lower edges of both sides of the upper shell 3 of the PCB board 5, and connecting reinforcement parts 12 are distributed on both sides of the lower shell 1 at the bottom of the slots 11; a cavity 13 is provided in the lower shell 1 of the PCB board 5.

[0037] In this invention, the ends of the upper shell 3 and lower shell 1 corresponding to the conductive contact 8 of the optical transceiver component cooperate with the conductive contact 8 to realize the feasibility of overall integration into the link.

[0038] Unlike existing technologies that integrate multiple chips on the PCB board 5, which seriously affects the thermal management design (heat dissipation) and the sealing management of the optical transceiver components, this utility model adopts four independently packaged optical receivers 6 and optical transmitters 7, which is conducive to sealing and thermal management, and realizes four independent full-duplex channels with a bandwidth of 11.2Gbps per channel, thereby achieving a combined bandwidth of >40Gbps.

[0039] Considering the application of four sets of optical receivers 6 and optical transmitters 7, special attention needs to be paid to their internal symmetry. Therefore, the optical receivers 6 and optical transmitters 7 are arranged symmetrically in pairs on both sides of the axis of the PCB board 5.

[0040] In this utility model, since four sets of optical receivers 6 and optical transmitters 7 are also provided, a cavity 13 is configured between the bottom plate of the lower shell 1 and the PCB board 5. The cavity 13 can achieve electrostatic isolation and also buffer and dissipate heat. In practical applications, thermal management components, including but not limited to thermal conductive layers, can be configured in the cavity 13 to cooperate with the lower shell 1 to achieve rapid heat dissipation.

[0041] In this utility model, the two sides of the PCB board 5 are fitted with the slots 11 on the lower edges of the two sides of the upper shell 3 for easy installation. Considering that a cavity 13 is set between the bottom plate of the lower shell 1 and the PCB board 5, which may cause the PCB board 5 to vibrate to a certain extent, connecting reinforcement members 12 are distributed on both sides of the lower shell 1 at the bottom of the slots 11. The connecting reinforcement members 12 here are convenient for fixing the PCB board 5, the contents of the cavity 13, etc., and can also play a role in vibration reduction. In the specific implementation process, it can also be set as a micro-elastic structure to facilitate the assembly of the upper shell 3 and the lower shell 1.

[0042] In this invention, the assembly components mainly cooperate with each other between the lower shell 1, the side shell 2, and the upper shell 3. Specifically, it includes:

[0043] (1) Step structures 14 are provided on both outer edges of the lower shell 1. The step structures 14 are lowest at the outer edge of the lower shell 1 and higher at the middle of the lower shell 1. Such step structures 14 facilitate the setting of the cavity 13 at the bottom plate of the lower shell 1, the installation and alignment of the PCB board 5 (corresponding to the upper layer of the step structure 14), and the assembly connection of the upper shell 3 and the side shell 2 above the outer edge of the lower shell 1 (corresponding to the lower layer of the step structure 14).

[0044] (2) A slot 15 is provided in the middle of the stepped structure 14 to facilitate the assembly connection of the upper shell 3 and the side shell 2 above the outer edge of the lower shell 1; at the same time, a first fastener 16 is provided at the connection end of the side shell 2 and the upper shell 3, and the side shell 2 and the upper shell 3 are connected by the first fastener 16 after installation.

[0045] (3) In actual installation, first assemble the upper shell 3 and the optical transceiver assembly, and then install the lower shell 1. Specifically, snap the symmetrical L-shaped connecting ends 17 of the lower shell 1 and the upper shell 3 on the side opposite to the pull ring 4. Since the two L-shaped connecting ends 17 are symmetrical, they form a snap-fit ​​connection.

[0046] (4) Then match the ramp structure 18 at the connection end of the upper shell 3 and the side shell 2, and adjust the tightness relationship between the upper shell 3 and the side shell 2.

[0047] (5) Further, the assembly slot 19 of the upper shell 3 is aligned with the assembly rods 20 on both sides of the fiber optic connector 9, and the upper shell 3 is pressed down to complete the installation;

[0048] (6) The side shell 2 will be further fastened to the side of the upper shell 3 and the lower shell 1 facing away from the conductive contact 8. Specifically, a second fastening member 21 is provided on the mating surface of the side shell 2 and the lower shell 1. In this embodiment, a slot 22 is provided on the outer edge of the lower shell 1, and the side shell 2 is inserted into the slot 22 to achieve mating. The second fastening member 21 here has a certain elasticity.

[0049] The above assembly achieves the corresponding assembly of the upper shell 3 and the side shell 2, the side shell 2 and the lower shell 1, and the upper shell 3 and the lower shell 1, and docks with the fiber optic connector 9 of the optical transceiver assembly, ultimately realizing the integration of the overall structure and facilitating the implementation of the lightweight overall structure.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lightweight four-channel SFP interface module, characterized in that: The device includes a lower shell, on which an optical transceiver assembly is mounted. A side shell and an upper shell are mounted on the lower shell outside the optical transceiver assembly. An assembly assembly is provided between the lower shell, the side shell, and the upper shell. A pull ring is provided at the end of the side shell facing away from the optical transceiver assembly.

2. The lightweight four-channel SFP interface module according to claim 1, characterized in that: The optical transceiver assembly includes a PCB board, on which four independently packaged optical receivers and optical transmitters are electrically connected; one end of the PCB board is provided with a conductive contact, and the other end is provided with an interface through an optical fiber connector.

3. A lightweight four-channel SFP interface module according to claim 2, characterized in that: All of the aforementioned optical receivers and optical transmitters are symmetrically arranged in pairs on both sides of the axis of the PCB board.

4. A lightweight four-channel SFP interface module according to claim 2, characterized in that: One or more slots are symmetrically provided on the lower edges of both sides of the upper shell that mates with the PCB board, and connecting reinforcement parts are distributed on both sides of the lower shell at the bottom of the slots; a cavity is provided in the lower shell that mates with the PCB board.

5. A lightweight four-channel SFP interface module according to claim 1, characterized in that: The assembly includes stepped structures on both outer edges of the lower shell, with slots provided in the middle of the stepped structures, and the connecting ends of the side shell and the upper shell correspondingly fitted into the slots.

6. A lightweight four-channel SFP interface module according to claim 5, characterized in that: The assembly assembly also includes a first fastener located at the connection end of the side shell and the upper shell, with the first fasteners of the side shell and the upper shell having an interference fit.

7. A lightweight four-channel SFP interface module according to claim 5, characterized in that: The outer edges of the lower shell and the upper shell facing away from the pull ring are respectively provided with L-shaped connecting ends, and the two L-shaped connecting ends are symmetrically arranged.

8. A lightweight four-channel SFP interface module according to claim 7, characterized in that: The connection end between the upper shell and the side shell faces the L-shaped connection end and is equipped with a sloping structure to match the lower shell.

9. A lightweight four-channel SFP interface module according to claim 5, characterized in that: The assembly assembly also includes a second fastener located on the mating surfaces of the side shell and the lower shell.

10. A lightweight four-channel SFP interface module according to claim 2, characterized in that: The inner side of the upper shell is provided with an assembly groove facing the fiber optic connector, and the fiber optic connector that mates with the assembly groove is provided with assembly rods on both sides.

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