A fiber optic communication expansion card based on PCIe 4.0

Abstract

This application provides a fiber optic communication expansion board based on PCIe 4.0, including the fiber optic expansion board and a metal interface board for mounting the fiber optic expansion board. The tail end of the fiber optic expansion board has a cutting groove and multiple sets of positioning grooves. An auxiliary balancing block is inserted into the cutting groove. The inner end of the auxiliary balancing block includes a horizontally arranged positioning structure and a vertically arranged balancing structure. The balancing structure is located at the insertion end of the auxiliary balancing block and includes a slide cylinder, a slider, a roller, and a second spring for adjusting the vertical movement of the slider. The positioning structure is located at the fixed end of the auxiliary balancing block and includes a positioning block that is engaged with the positioning groove, a linkage rod for pushing the positioning block, a positioning plate and a connecting rod, and a first spring and a cylinder groove for moving the positioning plate. This application solves the problems of unstable installation and hot-plugging of fiber optic communication expansion boards during installation, as well as thermal bending or deformation after prolonged operation.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and more specifically, to a fiber optic communication expansion board based on PCIe 4.0. Background Technology

[0002] Fiber optic communication expansion cards are hardware modules used to enhance or expand the functionality of fiber optic communication systems. They are typically integrated into servers, routers, or dedicated communication equipment and enable high-speed data transmission through fiber optic interfaces.

[0003] PCIe is a high-speed serial computer expansion bus standard widely used to connect various hardware devices on the motherboard. A fiber optic expansion card, on the other hand, transmits data via fiber optic cables, providing high-speed and stable data transmission capabilities. Combining these two technologies results in a PCIe fiber optic expansion card with many advantages that traditional cables cannot match.

[0004] In existing technologies, during the use of communication, it is not possible to ensure that the fiber optic communication expansion card is uniformly and stably inserted into the device for hot-swapping during installation. Furthermore, during the long operation of the device, thermal effects can easily occur, leading to thermal bending or deformation. Therefore, we propose an improvement by introducing a fiber optic communication expansion card based on PCIe 4.0. Utility Model Content

[0005] The purpose of this invention is to address the problem that current communication designs cannot ensure the uniform and stable parallel hot-plugging of fiber optic communication expansion cards into the device during installation, and that thermal effects can easily occur during long-term operation of the device, leading to thermal bending or deformation.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: A fiber optic communication expansion card based on PCIe 4.0 is proposed to improve the above-mentioned problems.

[0007] The application is as follows: A fiber optic communication expansion board based on PCIe 4.0 includes a fiber optic expansion board and a metal interface board for mounting the fiber optic expansion board. The tail end of the fiber optic expansion board has a cutting groove and multiple sets of positioning grooves. An auxiliary balancing block is inserted into the cutting groove. The inner end of the auxiliary balancing block includes a horizontally arranged positioning structure and a vertically arranged balancing structure. The balancing structure is located at the insertion end of the auxiliary balancing block and includes a slide cylinder, a slider, a roller, and a second spring for adjusting the vertical movement of the slider. The positioning structure is located at the fixed end of the auxiliary balancing block and includes a positioning block that is engaged with the positioning groove, a linkage rod for pushing the positioning block to move, a positioning plate and a connecting rod, and a first spring and a cylinder groove for moving the positioning plate. A linkage structure is also provided between the positioning structure and the balancing structure.

[0008] As a preferred technical solution of this application, multiple sets of positioning grooves are arranged at equal intervals in the cutting groove, and the number of cutting grooves is set to two sets.

[0009] As a preferred technical solution of this application, the roller is movably wrapped around the lower inner surface of the slider, and the lower end of the roller extends out of the lower surface of the slider. The slider slides up and down along the slide cylinder, and the slide cylinder is embedded in the inner end of the auxiliary balance block. The lower end of the slide cylinder passes through the lower outer surface of the auxiliary balance block. The upper and lower ends of the second spring are respectively fixed to the upper inner surface of the slide cylinder and the upper outer surface of the slider.

[0010] As a preferred technical solution of this application, the positioning block is embedded in one of a pair of mirrored positioning slots, the tail end of the positioning block is fixedly connected to the linkage rod, the tail end of the linkage rod is movably connected to the positioning plate, the center of the positioning plate is fixedly connected to the connecting rod, the first spring is wrapped around the outer end of the connecting rod, and the two ends of the first spring are fixedly connected to the positioning plate and the cylindrical slot respectively.

[0011] As a preferred technical solution of this application, the linkage structure includes a through groove passing through the slide cylinder and the positioning groove, a connecting line connecting the linkage rod and the slider, and a crossbar and wire frame limiting the movement of the connecting line.

[0012] As a preferred technical solution of this application, the number of connecting lines is set to two sets. The lower ends of the two sets of connecting lines are fixedly connected to the slider, and the upper ends of the two sets of connecting lines are fixedly connected to the corresponding linkage rods. The wire frame is wrapped around the outer ends of the two sets of connecting lines, and the wire frame is fixed inside the slide cylinder by the crossbar.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: By setting up the positioning and balancing structures, the installation stability and clear position of the auxiliary balance block can be ensured, which is conducive to ensuring the installation stability of the entire fiber optic expansion board. During the entire operation of the equipment, it will not be affected by thermal effects and will not bend, affecting the contact. Furthermore, under the action of the linkage structure, the linkage stability between the positioning and balancing structures and the easy disassembly and assembly of the entire auxiliary balance block can be ensured. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a fiber optic communication expansion board based on PCIe 4.0 provided for this application; Figure 2 A cross-sectional schematic diagram of the auxiliary balance block structure of an optical fiber communication expansion board based on PCIe 4.0 provided for this application; Figure 3 This application provides a fiber optic communication expansion card based on PCIe 4.0. Figure 2 A magnified structural diagram of A in the middle; Figure 4 A side cross-sectional diagram of an auxiliary balance block structure for a PCIe 4.0-based optical fiber communication expansion board provided for this application; Figure 5 This application provides a fiber optic communication expansion card based on PCIe 4.0. Figure 4 A magnified structural diagram of B in the diagram.

[0015] The image shows: 1. Fiber optic expansion board; 2. Cutting groove; 3. Positioning groove; 4. Positioning block; 5. Linkage rod; 6. Positioning plate; 7. Connecting rod; 8. First spring; 9. Cylinder groove; 10. Connecting wire; 11. Crossbar; 12. Wire frame; 13. Second spring; 14. Sliding cylinder; 15. Sliding block; 16. Roller; 17. Auxiliary balancing block. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0017] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, unless otherwise specified, the embodiments, features, and technical solutions in the embodiments of this utility model can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] like Figures 1-5 As shown, this embodiment proposes a fiber optic communication expansion board based on PCIe 4.0, including a fiber optic expansion board 1 and a metal interface board for mounting the fiber optic expansion board 1. The tail end of the fiber optic expansion board 1 is provided with a cutting groove 2 and multiple sets of positioning grooves 3. An auxiliary balancing block 17 is inserted and installed in the cutting groove 2. The inner end of the auxiliary balancing block 17 includes a horizontally arranged positioning structure and a vertically arranged balancing structure. The balancing structure is located at the insertion end of the auxiliary balancing block 17. The balancing structure includes a sliding cylinder 14, a slider 15, a roller 16, and a second spring 13 for adjusting the up and down movement of the slider 15. The positioning structure is located at the fixed end of the auxiliary balancing block 17. The positioning structure includes a positioning block 4 that is engaged with the positioning groove 3, a linkage rod 5 for pushing the positioning block 4 to move, a positioning plate 6 and a connecting rod 7, and a first spring 8 and a cylinder groove 9 for moving the positioning plate 6. A linkage structure is also provided between the positioning structure and the balancing structure.

[0020] Multiple sets of positioning grooves 3 are arranged at equal intervals in the cutting groove 2, and there are two sets of cutting grooves 2.

[0021] The roller 16 is movably wrapped around the lower inner surface of the slider 15, and the lower end of the roller 16 extends out of the lower surface of the slider 15. The slider 15 slides up and down along the slide cylinder 14, and the slide cylinder 14 is embedded in the inner end of the auxiliary balance block 17. The lower end of the slide cylinder 14 passes through the lower outer surface of the auxiliary balance block 17. The upper and lower ends of the second spring 13 are respectively fixed to the upper inner surface of the slide cylinder 14 and the upper outer surface of the slider 15. The roller 16 contacts the mounting surface, and the second spring 13 buffers the up and down movement, so that the fiber optic expansion board 1 automatically keeps horizontal during installation, avoiding tilting or stress concentration.

[0022] The positioning block 4 is embedded in one of the pair of mirrored positioning slots 3. The tail end of the positioning block 4 is fixedly connected to the linkage rod 5. The tail end of the linkage rod 5 is movably connected to the positioning plate 6. The center of the positioning plate 6 is fixedly connected to the connecting rod 7. The first spring 8 is wrapped around the outer end of the connecting rod 7. The two ends of the first spring 8 are fixedly connected to the positioning plate 6 and the cylindrical slot 9 respectively. The balancing structure and the positioning structure are linked by the connecting line 10. When the installation surface is uneven, the slider 15 moves and transmits the movement to the linkage rod 5 through the connecting line 10 to adjust the position of the positioning block 4, ensuring that the fiber optic expansion board 1 remains balanced while being fixed. This design can effectively counteract the asymmetrical forces during the installation process and improve stability.

[0023] The linkage structure includes a through groove passing through the slide cylinder 14 and the positioning groove 3, a connecting line 10 connecting the linkage rod 5 and the slider 15, a crossbar 11 limiting the movement of the connecting line 10, and a wire frame 12.

[0024] The number of connecting lines 10 is set to two sets. The lower ends of the two sets of connecting lines 10 are fixedly connected to the slider 15, and the upper ends of the two sets of connecting lines 10 are fixedly connected to the corresponding linkage rods 5 respectively. The wire frame 12 is wrapped around the outer ends of the two sets of connecting lines 10, and the wire frame 12 is fixed inside the slide cylinder 14 by the crossbar 11. The auxiliary balance block 17 is directly inserted into the cutting slot 2 of the fiber optic expansion board 1, and the positioning block 4 is automatically inserted into the positioning slot 3 under the action of the spring. The balancing structure simultaneously contacts the mounting surface, completing the installation quickly and accurately.

[0025] When this application is used: During the production of fiber optic expansion board 1, a cutting groove 2 and a positioning groove 3 of uniform size are cut into the blank space at the tail of fiber optic expansion board 1. Before installing the fiber optic expansion board 1 and the equipment, insert the auxiliary balance block 17 into the cutting slot 2 of the fiber optic expansion board 1. The inner end design of the auxiliary balance block 17 includes a lateral positioning structure to ensure automatic alignment and fixation during the insertion process. During the insertion process described above, the positioning block 4 in the positioning structure is automatically engaged in the corresponding positioning groove 3 (the positioning grooves 3 are arranged at equal intervals), and is rigidly fixed through the coordinated action of the linkage rod 5, the positioning plate 6, the connecting rod 7 and the first spring 8. The first spring 8 provides a preload force to ensure that the positioning block 4 is tightly embedded in the positioning groove 3 and to prevent loosening. In the balancing structure, the roller 16 contacts the mounting surface (such as the chassis bottom plate), and the slider 15 moves up and down in the slide cylinder 14 by the second spring 13, automatically adapting to the unevenness of the mounting surface and achieving the balance of the installation. The design of the roller 16 reduces friction, facilitates smooth installation, and reduces the bending deformation of the fiber optic expansion board 1 caused by thermal effects after long-term use. The connecting line 10 between the balancing structure and the positioning structure can provide a linkage mechanism between the two structures when the auxiliary balancing block 17 needs to be removed outward. When the connecting rod 7 is pulled outward, the positioning plate 6 and the linkage rod 5 retract inward along the cylindrical groove 9, pushing the connecting line 10 to pull the slider 15 connected to its tail inward, ensuring that the entire fiber optic expansion board 1 is not damaged when the auxiliary balancing block 17 is removed. More importantly, after installation in the equipment, the auxiliary balancing block 17 can be removed without damage and without affecting the other pins of the equipment.

[0026] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A fiber optic communication expansion board based on PCIe 4.0, comprising a fiber optic expansion board (1) and a metal interface board for mounting the fiber optic expansion board (1), characterized in that, The fiber optic expansion board (1) has a cutting groove (2) and multiple positioning grooves (3) at its tail end. An auxiliary balance block (17) is inserted into the cutting groove (2). The inner end of the auxiliary balance block (17) includes a horizontally arranged positioning structure and a vertically arranged balancing structure. The balancing structure is located at the insertion end of the auxiliary balance block (17). The balancing structure includes a slide cylinder (14), a slider (15), a roller (16), and a second spring (13) for adjusting the slider (15) to move up and down. The positioning structure is located at the fixed end of the auxiliary balance block (17). The positioning structure includes a positioning block (4) that is engaged with the positioning groove (3), a linkage rod (5) for pushing the positioning block (4) to move, a positioning plate (6), a connecting rod (7), a first spring (8) for moving the positioning plate (6), and a cylinder groove (9). A linkage structure is also provided between the positioning structure and the balancing structure.

2. The fiber optic communication expansion board based on PCIe 4.0 according to claim 1, characterized in that, Multiple sets of positioning grooves (3) are arranged at equal intervals in the cutting groove (2), and the number of cutting grooves (2) is set to two sets.

3. The fiber optic communication expansion board based on PCIe 4.0 according to claim 2, characterized in that, The roller (16) is movably wrapped around the lower inner surface of the slider (15), and the lower end of the roller (16) extends out of the lower surface of the slider (15). The slider (15) slides up and down along the slide cylinder (14), and the slide cylinder (14) is embedded in the inner end of the auxiliary balance block (17). The lower end of the slide cylinder (14) passes through the lower outer surface of the auxiliary balance block (17). The upper and lower ends of the second spring (13) are respectively fixed to the upper inner surface of the slide cylinder (14) and the upper outer surface of the slider (15).

4. The fiber optic communication expansion board based on PCIe 4.0 according to claim 3, characterized in that, The positioning block (4) is embedded in one of the pair of mirrored positioning slots (3). The tail end of the positioning block (4) is fixedly connected to the linkage rod (5). The tail end of the linkage rod (5) is movably connected to the positioning plate (6). The center of the positioning plate (6) is fixedly connected to the connecting rod (7). The first spring (8) is wrapped around the outer end of the connecting rod (7). The two ends of the first spring (8) are fixedly connected to the positioning plate (6) and the cylindrical groove (9) respectively.

5. The fiber optic communication expansion board based on PCIe 4.0 according to claim 1, characterized in that, The linkage structure includes a through groove passing through the slide (14) and the positioning groove (3), a connecting line (10) connecting the linkage rod (5) and the slider (15), a crossbar (11) limiting the movement of the connecting line (10), and a wire frame (12).

6. The fiber optic communication expansion board based on PCIe 4.0 according to claim 5, characterized in that, The number of connecting lines (10) is set to two sets. The lower ends of the two sets of connecting lines (10) are fixedly connected to the slider (15). The upper ends of the two sets of connecting lines (10) are fixedly connected to the corresponding linkage rods (5). The wire frame (12) is wrapped around the outer ends of the two sets of connecting lines (10), and the wire frame (12) is fixed inside the slide cylinder (14) by the crossbar (11).

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