VPX shielding case

Abstract

The utility model discloses a VPX shielding cabinet comprising a cabinet body, and one side of the cabinet body is provided with an opening. The back plate and the at least one board card are arranged in the box body, and the board card is inserted into a corresponding insertion notch in the back plate; the box cover can rotate relative to the opening so as to be used for opening or closing the opening; the interface board is arranged on the box body, and at least part of the interface board is located in the box body; and the adapter connector is arranged in the box body, and the adapter connector is electrically connected with the back plate and the interface plate respectively. Therefore, the electromagnetic wave leakage is effectively controlled, the electromagnetic wave shielding performance is remarkably improved, and the application range of the electromagnetic wave shielding device is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of chassis, in particular to a VPX shielding chassis. Background Art

[0002] The VPX (Virtual Private Exchange) chassis is designed specifically to meet the needs of high-performance embedded computing. A VPX chassis generally has multiple slots and can accommodate different applications by inserting boards with different functions to meet diverse application requirements. For example, inserting an air-cooling board (air-cooling plug-in) into the VPX chassis provides the advantages of a short heat dissipation path and good heat dissipation effect.

[0003] To facilitate debugging, VPX chassis with air-cooled cards typically have an opening on the side facing the debug port. This allows the card panel and its debug port to be directly exposed. However, this design can cause electromagnetic waves generated by the cards in the VPX chassis to leak through the opening.

[0004] Furthermore, the internal structure of the VPX chassis with air-cooled cards utilizes a sequentially connected structure of cards, backplanes, and rear printed circuit boards (rear boards). Multiple rear boards are arranged side by side and equipped with connector interfaces as the rear interfaces of the chassis. The side of the chassis facing the rear board panels also has openings. However, due to limitations in the installation process and design, there may be gaps between these rear boards, allowing electromagnetic waves to leak through these gaps and out of the chassis through the openings.

[0005] These electromagnetic leakage risks make existing VPX chassis with air-cooled boards unusable in electromagnetically sensitive scenarios, such as military applications, thereby limiting their scope of application. Utility Model Content

[0006] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0007] To this end, one purpose of the present invention is to provide a VPX shielding chassis, which achieves effective control of electromagnetic wave leakage, significantly improves the shielding performance of electromagnetic waves, and thus expands its scope of application.

[0008] To achieve the above-mentioned objectives, the present invention proposes a VPX shielded chassis, comprising a chassis, one side of which is provided with an opening; a backplane and at least one board, both of which are arranged in the chassis, and the board is plugged into corresponding plug-in slots on the backplane; a chassis cover, which is rotatable relative to the opening to open or close the opening; an interface board, which is provided on the chassis, and at least part of which is located in the chassis; and an adapter connector, which is arranged in the chassis and electrically connected to the backplane and the interface board, respectively.

[0009] The VPX shielded chassis of this utility model, by using a lid to seal the opening, effectively shields electromagnetic waves generated by the boards near the opening, significantly reducing electromagnetic wave leakage. Furthermore, by using an interface board in conjunction with an adapter connector, instead of the multiple rear boards used in the prior art, the interface board and the side walls of the chassis form a single, integrated shielding structure, eliminating gaps between the rear boards and reducing electromagnetic wave leakage. As a result, the VPX shielded chassis effectively controls electromagnetic wave leakage, significantly improving its shielding performance and expanding its scope of application.

[0010] In addition, the VPX shielded chassis proposed in the application may also have the following additional technical features:

[0011] Specifically, the adapter connector is electrically connected to the interface board through an adapter board or an adapter line.

[0012] Specifically, the interface board is an I / O interface board, and the interface board has multiple interfaces.

[0013] Specifically, it further includes an aviation plug, which is mounted on the box through a flange, and at least partially located in the box and electrically connected to the backplane.

[0014] Specifically, it also includes two guide rails, both of which are arranged in the box body, and the guide rails are detachably connected to the inner wall of the box body; the back panel is fixed between the two guide rails; and the board is slidably plugged into the two guide rails respectively.

[0015] Specifically, the guide rail is formed by integral milling of aluminum alloy material, and the surface treatment is hard anodizing.

[0016] Specifically, ventilation holes are respectively opened on the upper surface and the lower surface of the box body, and waveguide ventilation plates are respectively arranged in the two ventilation holes.

[0017] Specifically, a heat dissipation fan is further included. The heat dissipation fan is installed on a guide rail arranged adjacent to the ventilation opening, and the exhaust port of the heat dissipation fan faces the ventilation opening.

[0018] Specifically, a mounting groove is provided on the box cover, and a glass panel is provided in the mounting groove.

[0019] Specifically, the box cover is rotatably connected to the box body through a torque hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 This is a schematic structural diagram of a VPX shielding chassis according to one embodiment of the present invention;

[0023] Figure 2 This is a schematic side view of the structure of a VPX shielding chassis according to one embodiment of the present invention;

[0024] Figure 3 A schematic structural diagram of a VPX shielding chassis from another perspective according to an embodiment of the present invention;

[0025] Figure 4 Schematic diagram of the structure of a guide rail according to an embodiment of the present invention.

[0026] As shown in the figure:

[0027] 10. Box; 100. Open;

[0028] 11. Back panel;

[0029] 12. Board;

[0030] 13. Box cover;

[0031] 14. Interface board;

[0032] 15. Adapter connector; 150. Adapter board;

[0033] 16. Aviation plug;

[0034] 17. Guide rail; 170. Slideway;

[0035] 18. Pull-out aid;

[0036] 19. Waveguide ventilation plate;

[0037] 20. Cooling fan;

[0038] 21. Glass panel. DETAILED DESCRIPTION

[0039] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0041] The VPX shielding chassis of an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0042] In the existing technology, the VPX chassis is a chassis designed specifically to meet the needs of high-performance embedded computing. The VPX chassis generally has multiple slots, and different applications can be realized by inserting different functional boards to meet diverse application needs. For example, inserting an air-cooling board (air-cooling plug-in) into the VPX chassis has the advantages of short heat dissipation path and good heat dissipation effect.

[0043] To facilitate debugging, VPX chassis with air-cooled cards typically have an opening on the side facing the debug port. This allows the card panel and its debug port to be directly exposed. However, this design can cause electromagnetic waves generated by the cards in the VPX chassis to leak through the opening.

[0044] In addition, the internal structure of the VPX chassis with air-cooled boards adopts a sequential connection structure of boards, backplanes and rear printed circuit boards (rear boards). Among them, multiple rear boards are arranged side by side and are equipped with connector interfaces as the rear interfaces of the chassis. An opening is also provided on the side of the chassis facing the rear board panel. However, due to limitations in the installation process and design, there may be certain gaps between these rear boards, causing electromagnetic waves to leak from the openings through these gaps to the outside of the chassis. These risks of electromagnetic leakage make the existing VPX chassis with air-cooled boards unusable in electromagnetically sensitive scenarios, such as those in the military industry, which limits its scope of application.

[0045] In order to solve the above problems existing in the VPX chassis in the prior art, Figure 1 、 Figure 2 and Figure 3As shown, the VPX shielded chassis of the embodiment of the present invention may include a chassis body 10, a backplane 11, at least one board 12, a chassis cover 13, an interface board 14, a transfer connector 15 and an aviation plug 16.

[0046] An opening 100 is provided on one side of the box body 10 .

[0047] It should be noted that the box 10 described in this example is a chassis made of aluminum alloy structural parts, wherein the box 10 can be a 6U, 8U or other chassis, which can be selected according to actual conditions, wherein "U" is the abbreviation of unit, which represents the unit of the external dimension of the box 10.

[0048] The backplane 11 and at least one board 12 are arranged in the box 10, and the board 12 is plugged into the corresponding plug-in slots on the backplane 11. The backplane 11 can be a VPX backplane with various specifications such as 14, 16, and 18 slots. The number of plug-in slots of the backplane 11 can be selected according to the size of the box 10 and actual conditions.

[0049] It should be noted that the board 12 may be an air-cooled board (air-cooled plug-in), and the board 12 has a debugging interface, and the debugging interface is arranged toward the opening 100 .

[0050] Specifically, the electrical connection between the board 12 and the backplane 11 can be completed by plugging the connector of the board 12 into the corresponding plug-in slot on the backplane 11. Furthermore, in order to strengthen the stability of the board 12 fixed on the backplane 11, after the plug-in is completed, threaded fasteners (such as screws or clips) can be used to fix the board 12 on the backplane 11 to prevent the board 12 from loosening or falling off, ensuring that the connection between the board 12 and the backplane 11 remains stable and reliable under vibration or impact conditions.

[0051] The box cover 13 is rotatable relative to the opening 100 to open or close the opening 100. When the box cover 13 closes the opening 100, it can be used to shield the electromagnetic waves generated by the end of the board 12 near the opening 100, thereby reducing the leakage of electromagnetic waves. The box cover 13 can also be opened when necessary to facilitate the connection and debugging of the interface. It has a simple structure, is easy to operate, and can reduce the leakage of electromagnetic waves.

[0052] Furthermore, the lid 13 is rotatably connected to the housing 10 via a torque hinge. This allows the lid 13 to rotate freely within a specific range, allowing the user to easily open and close the lid 13 without the need for additional tools or complicated steps. The torque hinge creates resistance during movement, allowing the lid 13 to remain at any desired angle, making it easy for the user to adjust the lid's position as needed during commissioning or maintenance.

[0053] Optionally, in order to further improve the tightness between the box cover 13 and the opening 100 when the box cover 13 closes the opening 100, a hand screw may be provided on the box cover 13, and a threaded hole may be provided at a corresponding position on the box body 10. When the box cover 13 closes the opening 100, the user increases the tightness between the box cover 13 and the opening 100 by screwing the hand screw into the threaded hole.

[0054] like Figure 2 and Figure 3 As shown, the interface board 14 is arranged on the box 10, and at least part of the interface board 14 is located in the box 10, wherein the interface board 14 is an I / O (Input / Output) interface board 14, and the interface board 14 has multiple interfaces to meet the needs of connecting multiple devices.

[0055] The adapter connector 15 is arranged in the box body 10 , and the adapter connector 15 is electrically connected to the backplane 11 and the interface board 14 respectively. The adapter connector 15 is electrically connected to the interface board 14 through the adapter board 150 or the adapter line.

[0056] Optionally, refer to Figure 2 The adapter connector 15 is electrically connected to the interface board 14 through the adapter board 150. Compared with the traditional adapter wiring method, the design of the adapter board 150 not only significantly reduces the number of wirings, but also greatly reduces the complexity and tediousness of the wiring.

[0057] The electrical connection between the adapter connector 15 and the backplane 11 can be completed through a terminal block connection or a cable. The connection method is a conventional technology and will not be described in detail here.

[0058] Specifically, by using the box cover 13 to close the opening 100, the electromagnetic waves generated by the end of the board 12 adjacent to the opening 100 can be effectively shielded, thereby significantly reducing the leakage of the electromagnetic waves.

[0059] Secondly, by using the interface board 14 in conjunction with the adapter connector 15 to replace multiple rear plug-in boards in the prior art, the interface board 14 and the side wall of the installed box 10 form an integral shielding structure, eliminating the gaps between the rear plug-in boards and reducing the leakage of electromagnetic waves.

[0060] Therefore, this VPX shielding chassis achieves effective control of electromagnetic wave leakage, significantly improves the shielding performance of electromagnetic waves, and thus expands its scope of application.

[0061] In one embodiment of the present invention, Figure 3As shown, the VPX shielded chassis also includes an aviation plug 16, which is mounted on the chassis 10 through a flange, and the aviation plug 16 is at least partially located in the chassis 10 and electrically connected to the backplane 11 for supplying power to the backplane 11, and the aviation plug 16 can be electrically connected to the backplane 11 in the form of a cable.

[0062] It should be noted that the aviation plug 16 itself has a flange, and the tightness between the flange and the housing 10 can reduce the leakage of electromagnetic waves.

[0063] In one embodiment of the present invention, Figure 4 As shown, the VPX shielded chassis also includes two guide rails 17, both of which are arranged in the box body 10, and the guide rails 17 are detachably connected to the inner wall of the box body 10, that is, the guide rails 17 can be detachably connected to the box body 10 by bolts or screws.

[0064] The back panel 11 is fixed between the two guide rails 17, and the board 12 is slidably plugged into the two guide rails 17 respectively. Optionally, a slide groove 170 is provided on the guide rail 17, and a limiting slider adapted to the slide groove 170 is integrally formed on the board 12. By plugging the limiting slider into the slide groove 170, the sliding plug-in between the board 12 and the guide rail 17 can be achieved.

[0065] Furthermore, the guide rail 17 is integrally milled from aluminum alloy, with a hard anodized surface treatment. The guide rail 17 not only supports the board 12 and backplane 11, but also reinforces the housing 10. Aluminum alloy has excellent corrosion resistance, resisting the effects of moisture, oxidation, and other adverse factors. This ensures that the guide rail 17 will not degrade or become damaged due to corrosion during long-term use. The integral milling process ensures the dimensional and shape accuracy of the guide rail 17. The hard anodizing treatment forms a hard oxide film on the aluminum alloy surface, which can reduce wear on the board 12 during insertion and removal, thereby extending the service life of the board 12.

[0066] Optionally, in order to further improve the stability of the board 12 on the guide rail 17, as shown in FIG. Figure 1 As shown, the board 12 is fixed to the guide rail 17 by the puller 18, that is, by preliminarily aligning the outer frame of the puller 18 with the guide rail 17, and matching the positioning pins on the puller 18 with the positioning holes on the guide rail 17, and then operating the handle or locking mechanism of the puller 18 to fix the built-in movable frame to the guide rail 17, and ensure that the board 12 is firmly fixed to the guide rail 17. Since the specific structure of the puller 18 is existing technology, it will not be described in detail here.

[0067] In one embodiment of the present invention, Figure 1As shown, ventilation holes are respectively provided on the upper and lower surfaces of the box body 10, and waveguide ventilation plates 19 are respectively provided in the two ventilation holes, wherein the design of the ventilation holes allows the heat inside the box body 10 to be effectively dissipated, preventing internal devices (such as the board 12) from being damaged or performance degradation due to overheating. The introduction of the waveguide ventilation plates 19 can effectively suppress the leakage of electromagnetic waves at the ventilation holes while ensuring ventilation, and utilize the waveguide effect, that is, when electromagnetic waves propagate inside a conductor of a specific shape, they will be restricted and guided by the boundaries of the conductor, thereby suppressing the leakage of electromagnetic waves.

[0068] In one embodiment of the present invention, Figure 2 As shown, the VPX shielded chassis further includes a cooling fan 20 , which is mounted on a guide rail 17 arranged adjacent to the ventilation opening, and the exhaust port of the cooling fan 20 faces the ventilation opening.

[0069] It is understood that by aligning the cooling fan 20 directly with the vents, an effective heat dissipation channel is formed. When the cooling fan 20 is activated, it can quickly exhaust the heat inside the chassis 10 through the vents, reducing the temperature inside the chassis 10, ensuring the normal operation of the chassis 10 and its internal components, and further improving the heat dissipation capacity of the VPX shielded chassis.

[0070] In one embodiment of the present invention, Figure 1 As shown, a mounting groove is provided on the box cover 13, and a glass panel 21 is provided in the mounting groove. The glass panel 21 is used to conveniently observe the status of the indicator lights on the panel of the board 12, which greatly facilitates the user's real-time monitoring of the internal operating status of the box body 10 and helps to promptly discover and deal with potential problems.

[0071] In summary, the VPX shielding chassis of the embodiment of the present invention achieves effective control of electromagnetic wave leakage, significantly improves the shielding performance of electromagnetic waves, and thus expands its scope of application.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0073] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments described herein, but rather to be embodied in the broadest possible manner consistent with the principles and novel features disclosed herein.

Claims

1. A VPX shielded chassis, characterized in that: include: A box body, wherein one side of the box body is provided with an opening; A backplane and at least one board are arranged in the box, and the board is plugged into a corresponding plug-in slot on the backplane; a box cover, the box cover being rotatable relative to the opening to open or close the opening; an interface board, disposed on the box, with at least a portion of the interface board located in the box; The adapter connector is arranged in the box, and the adapter connector is electrically connected to the backplane and the interface board respectively.

2. The VPX shielded chassis according to claim 1, characterized in that The adapter connector is electrically connected to the interface board through an adapter board or an adapter line.

3. The VPX shielded chassis according to claim 2, characterized in that The interface board is an I / O interface board, and the interface board has multiple interfaces.

4. The VPX shielded chassis according to claim 1, wherein: It also includes an aviation plug, which is installed on the box through a flange, and at least part of the aviation plug is located in the box and is electrically connected to the backplane.

5. The VPX shielded chassis according to claim 1, wherein: It also includes two guide rails, both of which are arranged in the box body, and the guide rails are detachably connected to the inner wall of the box body; The back plate is fixed between the two guide rails; The board is slidably plugged into the two guide rails respectively.

6. The VPX shielded chassis according to claim 5, characterized in that: The guide rail is made of aluminum alloy and is integrally milled and formed, and the surface treatment is hard anodizing.

7. The VPX shielded chassis according to claim 1, wherein: The upper surface and the lower surface of the box body are respectively provided with ventilation holes, and waveguide ventilation plates are respectively provided in the two ventilation holes.

8. The VPX shielded chassis according to claim 7, wherein: The utility model further comprises a heat dissipation fan, which is installed on a guide rail arranged adjacent to the ventilation opening, and an air outlet of the heat dissipation fan faces the ventilation opening.

9. The VPX shielded chassis according to claim 1, wherein: The box cover is provided with a mounting groove, and a glass panel is provided in the mounting groove.

10. The VPX shielded chassis according to claim 1, wherein: The box cover is rotatably connected to the box body via a torque hinge.

Images