VPX backboard structure for preventing misplug of board card

Abstract

The utility model discloses a VPX backboard structure for preventing a board card from misplug in the field of VPX backboard design, which comprises two rows of mounting hole groups arranged on a VPX backboard, at least three key position holes are arranged in each mounting hole group, and the key position angles of the at least three key position holes in the same row of mounting hole group are different. According to the utility model, the problem of misplug between existing different board cards is solved, each board card can only be matched with the corresponding mounting hole group with the same key position angle, and when the board card is inserted into the mounting hole group which is not matched with the board card, due to the fact that the key position holes are not matched with the key positions on the board card in shape, size or direction, the board card can be inserted into the mounting hole group which is not matched with the board card. When the VPX backboard is inserted, the board card cannot be smoothly inserted, misplug between different board cards can be avoided, the situation that the whole VPX backboard is scrapped due to the fact that the board card is misplug into a card slot position which is incompatible with the board card or not matched with the board card in function is effectively prevented, and accuracy and high efficiency of data transmission are ensured.

Description

Technical Field

[0001] This utility model relates to the field of VPX backplane design technology, specifically to a VPX backplane structure that prevents misinsertion of circuit boards. Background Technology

[0002] Backplanes are present in all chassis systems, and some systems use 3.125Gbps, 5Gbps, 10Gbps or higher speed serial links to transmit data, requiring backplane design to achieve high levels of signal integrity and higher system data throughput.

[0003] Typically, VPX backplanes connect to VPX boards via VPX connectors. During VPX board installation, because VPX boards adhere to standardized dimensions and interface specifications, resulting in a high degree of visual uniformity, it's easy to mistakenly insert a VPX board into a slot that is functionally incompatible or electrically unsuitable. Such misinsertion can lead to data transmission parameters deviating from design standards, affecting overall system performance; in severe cases, current or voltage mismatches can directly burn out delicate chips on the board, or even trigger a chain reaction, rendering the entire VPX backplane unusable.

[0004] The above-mentioned defects urgently need to be addressed. Utility Model Content

[0005] To address the problem of misinsertion between different circuit boards, this invention provides a VPX backplane structure to prevent misinsertion of circuit boards.

[0006] The technical solution of this utility model is as follows:

[0007] A VPX backplane structure for preventing misinsertion of circuit boards includes two rows of mounting hole groups on the VPX backplane. Each mounting hole group has at least three key holes, and the key angles of the at least three key holes located in the same row of mounting hole groups are different.

[0008] According to the present invention based on the above solution, the key hole includes a first hole and a second hole, the first hole and the second hole are connected, and in the same row of mounting holes, at least three of the second holes have different key angles.

[0009] According to the above-described scheme of this utility model, the diameter of the first hole is larger than the diameter of the second hole.

[0010] According to the above-described scheme of this utility model, the diameter of the first hole is 5.1mm~5.3mm.

[0011] According to the above-described scheme of this utility model, the diameter of the second hole is 2.4mm~2.6mm.

[0012] According to the above-described scheme of this utility model, the center distance between the first hole and the second hole is 3.3mm~3.5mm.

[0013] According to the above-described scheme of this utility model, in the same row of mounting hole groups, the key angle of each key hole is different, and from left to right, the key angle of the key holes is arranged in an increasing order.

[0014] According to the above-described scheme of this utility model, in the same row of mounting hole groups, the key angle of each key hole is different, and from left to right, the key angle of the key holes is arranged in a decreasing-increasing manner.

[0015] According to the above-described scheme of this utility model, the key angles of the key holes in the two rows of mounting hole groups are arranged in the same way.

[0016] The advantages of this utility model based on the above solution are as follows:

[0017] In the aforementioned VPX backplane structure designed to prevent misinsertion of circuit boards, at least three keyholes within the same row of mounting holes have different key angles. Therefore, each circuit board can only be matched with its corresponding mounting hole group that has the same key angle. When a circuit board is inserted into a mismatched mounting hole group, it will not be able to be inserted smoothly because the keyholes do not match the shape, size, or orientation of the keys on the circuit board. This avoids misinsertion between different circuit boards and effectively prevents the entire VPX backplane from being rendered unusable due to a circuit board being mistakenly inserted into an incompatible or functionally incompatible slot, ensuring the accuracy and efficiency of data transmission. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the keyhole structure;

[0021] Figure 3 This is a schematic diagram of an optional embodiment;

[0022] Figure 4This is a schematic diagram of another alternative embodiment.

[0023] In the diagram, 1 is the VPX backplate; 2 is the keyhole; 21 is the first hole; and 22 is the second hole. Detailed Implementation

[0024] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0025] like Figure 1 As shown, this utility model provides a VPX backplane structure to prevent misinsertion of circuit boards. It includes two rows of mounting hole groups on the VPX backplane 1. Each mounting hole group has at least three key holes 2, and the key angle α of the at least three key holes 2 in the same row of mounting hole groups is different. Therefore, each circuit board can only be matched with its corresponding mounting hole group with the same key angle α. When a circuit board is inserted into a mounting hole group that does not match its own, the circuit board will not be able to be inserted smoothly because the key hole 2 does not match the key shape, size or direction on the circuit board. This can avoid misinsertion between different circuit boards and effectively prevent the entire VPX backplane 1 from being scrapped due to the circuit board being mistakenly inserted into a slot that is incompatible or functionally incompatible with its own. This ensures the accuracy and efficiency of data transmission.

[0026] During installation, the board can only be smoothly inserted and fixed in place when the key positions on the board and the key holes 2 on the back panel are perfectly matched in shape, size and orientation. This greatly improves the accuracy and reliability of the installation process and provides a clear installation guide and error feedback mechanism, enabling technicians to quickly identify and correct problems during the installation process.

[0027] It should be noted that the keys on the board are positioning pins or guide pins. In actual design, the structure of the keys on the board can be designed according to actual needs.

[0028] like Figure 2As shown, in this embodiment, the keyhole 2 includes a first hole 21 and a second hole 22. The first hole 21 and the second hole 22 are connected, and within the same row of mounting holes, at least three of the second holes 22 have different key angles α. Specifically, the key angle α is the angle between the line connecting the center of the first hole 21 and the center of the second hole 22 within the same row of mounting holes and the horizontal line. Different key angles α of the second holes 22 indicate different connection positions between the second hole 22 and the first hole 21, ensuring that the key on each board can only match the second hole 22 with the corresponding key angle α. This improves the accuracy of board installation, avoids misinsertion between different boards, reduces the risk of system instability or hardware damage due to improper installation, and helps improve the overall reliability and stability of the system, ensuring normal system operation and data security.

[0029] like Figure 1 As shown, in this embodiment, multiple first holes 21 are evenly spaced within the same row of mounting holes, providing clear reference and positioning points for board installation. This simplifies the installation process, allowing technicians to easily identify the position of each mounting hole, thus quickly and accurately fixing the board to the backplane. This helps technicians reduce errors during installation and avoid board damage or system performance degradation due to improper installation. Furthermore, the diameter of the first hole 21 is larger than the diameter of the second hole 22, enabling technicians to quickly identify the first hole 21 and the second hole 22. This facilitates rapid positioning during installation, reduces errors caused by confusing hole positions, and improves installation efficiency.

[0030] like Figure 1 , Figure 2 As shown, in this embodiment, the key angle α of the key holes 2 in the two rows of mounting hole groups is arranged in the same way, which allows for the adoption of a unified standard and process in the design and manufacturing process, thereby simplifying the production process and reducing costs. Furthermore, each mounting hole group has eight key holes 2. Counting from left to right, the key angle α of the first key hole 2 is 0°, the key angle α of the second key hole 2 is 45°, and the key angle α of the third to eighth key holes 2 is the same, all being 90°. Of course, in actual design, different key angle α of the key holes 2 can be designed according to actual needs.

[0031] like Figure 3As shown, in an optional embodiment, the key angle 'a' of the key holes 2 in both rows of mounting hole groups is arranged in the same way, allowing for a unified standard and process in design and manufacturing, thereby simplifying the production process and reducing costs. Furthermore, each mounting hole group contains eight key holes 2, and within the same row of mounting hole groups, the key angle 'a' of each key hole 2 is different, enabling technicians to quickly identify and locate the correct key hole 2 during installation, avoiding installation errors caused by confusion. Additionally, from left to right, the key angle 'a' of the key holes 2 increases progressively, further reducing the error rate during installation and improving installation efficiency and accuracy. Specifically, the key angles 'a' from left to right are 30°, 60°, 120°, 150°, 210°, 240°, 300°, and 330°. Of course, in actual design, different key angles 'a' of the key holes 2 can be designed according to actual needs.

[0032] like Figure 4 As shown, in another optional embodiment, the key angles 'a' of the key holes 2 in both rows of mounting hole groups are arranged in the same way, allowing for a unified standard and process in design and manufacturing, thereby simplifying the production process and reducing costs. Furthermore, within the same row of mounting hole groups, the key angles 'a' of each key hole 2 are different, and from left to right, the key angles 'a' of the key holes 2 are arranged in a decreasing-increasing order. Specifically, the key angles 'a' of the key holes 2 can decrease sequentially from left to right with a tolerance of 30°, resulting in an arithmetic sequence arrangement of the key angles 'a' of the key holes 2, simplifying the design process and making it easier to plan and implement the layout of the key holes 2.

[0033] In this embodiment, the diameter of the first hole 21 is 5.1mm to 5.3mm. The diameter of the first hole 21 can be designed to be any value in the range of 5.1mm, 5.12mm, 5.14mm, 5.16mm, 5.18mm, 5.2mm, 5.22mm, 5.24mm, 5.26mm, 5.28mm, 5.3mm, etc. In actual design, the diameter of the first hole 21 can be designed according to actual needs.

[0034] In this embodiment, the diameter of the second hole 22 is 2.4mm to 2.6mm. The diameter of the second hole 22 can be designed to be any value in the range of 2.4mm, 2.42mm, 2.44mm, 2.46mm, 2.48mm, 2.5mm, 2.52mm, 2.54mm, 2.56mm, 2.58mm, 2.6mm, etc. In actual design, the diameter of the second hole 22 can be designed according to actual needs.

[0035] In this embodiment, the center-to-center distance between the first hole 21 and the second hole 22 is 3.3mm to 3.5mm. The diameter of the second hole 22 can be designed to be any value in the range of 3.3mm, 3.32mm, 3.34mm, 3.36mm, 3.38mm, 3.4mm, 3.42mm, 3.44mm, 3.46mm, 3.48mm, 3.5mm, etc. In actual design, the center-to-center distance between the first hole and the second hole 22 can be designed according to actual needs.

[0036] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product is usually placed in during use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to 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, it should not be construed as a limitation of this application.

[0037] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0038] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A VPX backplane structure for preventing incorrect board insertion, characterized in that, It includes two rows of mounting hole groups on the VPX back panel, each mounting hole group having at least three key holes, and the key angles of the at least three key holes in the same row of mounting hole groups are different.

2. The VPX backplane structure for preventing misinsertion of circuit boards according to claim 1, characterized in that, The key hole includes a first hole and a second hole. The first hole and the second hole are connected, and at least three of the second holes in the same row of mounting holes have different key angles.

3. The VPX backplane structure for preventing misinsertion of circuit boards according to claim 2, characterized in that, The diameter of the first hole is larger than the diameter of the second hole.

4. The VPX backplane structure for preventing misinsertion of circuit boards according to claim 2, characterized in that, The diameter of the first hole is 5.1mm~5.3mm.

5. The VPX backplane structure for preventing misinsertion of circuit boards according to claim 2, characterized in that, The diameter of the second hole is 2.4mm to 2.6mm.

6. The VPX backplane structure for preventing misinsertion of circuit boards according to claim 2, characterized in that, The center-to-center distance between the first hole and the second hole is 3.3mm to 3.5mm.

7. The VPX backplane structure for preventing misinsertion of circuit boards according to claim 1, characterized in that, Within the same row of mounting holes, the key angle of each key hole is different, and the key angles of the key holes increase from left to right.

8. The VPX backplane structure for preventing misinsertion of circuit boards according to claim 1, characterized in that, Within the same row of mounting holes, the key angle of each key hole is different, and from left to right, the key angles of the key holes are arranged in a decreasing-increasing order.

9. The VPX backplane structure for preventing misinsertion of circuit boards according to claim 1, characterized in that, The key angles of the key holes in the two rows of mounting hole groups are arranged in the same way.

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