Data card anti-vibration heat dissipation locking structure

Abstract

The application provides a data card anti-vibration heat dissipation locking structure, which comprises a locking device and a data card. The locking device comprises a locking handle and a wedge-shaped locking strip. The two ends of the locking handle are connected with the wedge-shaped locking strips through cam mechanisms respectively. The two wedge-shaped locking strips are fixedly connected with the two sides of the data card respectively. The aviation rack comprises a shell and a panel. The shell and the panel are connected to form a sealed cavity. The bottom sidewall of the shell forms a circumferential extension edge, and an open cavity is formed around the panel with the shell. A data card jack is formed on the panel, which is used for inserting the locking device and the data card into the open cavity through the data card jack. The cam mechanism is rotated by rotating the locking handle, and then the wedge-shaped locking strip is extruded to be deformed. The deformed wedge-shaped locking strip is locked and fixed with the inner walls of the two sides of the open cavity. The application can improve the heat dissipation of the data card, and the anti-vibration and stability of the data card in a strong vibration environment.

Description

Technical Field

[0001] This invention relates to the field of avionics technology, specifically to a data card anti-vibration and heat dissipation locking structure. Background Technology

[0002] Data cards are crucial components of aviation equipment, primarily used to record and store aircraft flight data. The use and maintenance of data cards and the data they store require greater reliability and stability. As aviation equipment evolves towards miniaturization, functional integration, and more stable performance requirements, overheating due to increased power consumption is becoming increasingly apparent. Effective heat dissipation design is a key indicator of overall product performance.

[0003] Data cards are crucial carriers of aviation data, with key data supporting comprehensive assessments of aircraft status. Typically, data cards are designed and installed in sealed areas within aviation products. Due to the need for insertion, removal, and maintenance, they are often clearance-fitted with most surrounding structural components. The ends of the data cards are secured by connectors. However, environmental limitations, the significant stress generated during data card installation, and the inability of the data cards to effectively dissipate heat through heat transfer contribute to excessively high data card temperatures, poor vibration resistance, and negatively impacted overall product performance, increasing the risk of product failure. Summary of the Invention

[0004] In view of this, embodiments of this application provide a data card anti-vibration heat dissipation locking structure to improve the heat dissipation of the data card and its vibration resistance and stability in a strong vibration environment.

[0005] This application provides the following technical solution: a data card anti-vibration heat dissipation locking structure, comprising:

[0006] A locking device and a data card, wherein the locking device includes a locking handle and a wedge-shaped locking bar, the two ends of the locking handle are respectively connected to the wedge-shaped locking bar through a cam mechanism, and the two ends of the wedge-shaped locking bar are respectively fixedly connected to the two sides of the data card for assembling the data card onto the locking device;

[0007] An aircraft frame includes a housing and a panel. The open side of the housing is fixedly connected to the panel to form a sealed cavity. Each edge of the bottom sidewall of the housing extends in a direction perpendicular to the bottom sidewall to form a circumferential extension edge. The circumferential extension edge and the panel surround to form an open cavity. A data card slot is provided on the panel at a position corresponding to the open cavity, for inserting the locking device and the data card into the open cavity simultaneously through the data card slot.

[0008] The structure of the wedge-shaped locking strip is adapted to the inner wall structure on both sides of the open cavity. The locking handle is fixedly connected to the cam mechanism, and the cam mechanism is rotatably connected to the wedge-shaped locking strip. By rotating the locking handle, the cam mechanism is driven to rotate and squeeze the wedge-shaped locking strip, so that the squeezed and deformed wedge-shaped locking strip abuts against the inner wall on both sides of the open cavity and locks it in place.

[0009] According to one embodiment of this application, the wedge-shaped locking bar includes a fixed beam and a plurality of wedge-shaped blocks movably sleeved on the fixed beam. Each wedge-shaped block includes a movable part that can move along the wedge-shaped inclined surface and a squeezed part. The movable part and the squeezed part are arranged alternately and spaced apart from each other, and are used to squeeze the squeezed part after the cam mechanism rotates, so that the movable part moves along the wedge-shaped inclined surface and protrudes outward, and then locks and fixes itself against the inner walls of both sides of the open cavity.

[0010] According to one embodiment of this application, the rotation angle of the locking handle relative to the wedge-shaped locking bar is 90°.

[0011] According to one embodiment of this application, data card mounting bosses are fixedly provided on both sides of the data card, and the data card mounting bosses are fixedly connected to the fixing beam to fix the wedge-shaped locking strips to both sides of the data card respectively.

[0012] According to one embodiment of this application, the side structure of the data card mounting boss is adapted to the structure of the corresponding positions of the inner walls on both sides of the open cavity, so that when the locking device and the data card are inserted into the open cavity at the same time, the data card mounting boss is in close contact with the side wall of the open cavity.

[0013] According to one embodiment of this application, the bottom of the open cavity is provided with a docking connector for cooperating with the data card, and the bottom of the docking connector is provided with a sealing gasket.

[0014] According to one embodiment of this application, a limiting protrusion is provided on the inner side of the locking handle, which is used to limit the data card when the data card is locked in the open cavity, so that the data card and the docking connector are tightly engaged.

[0015] According to one embodiment of this application, the side wall of the sealed cavity is provided with aircraft frame heat dissipation fins, the side wall of the open cavity is provided with aircraft frame ventilation holes, and the bottom wall of the data card is provided with data card heat dissipation fins.

[0016] According to one embodiment of this application, the middle portion of the locking handle is recessed inward from the edge to form a hand-held area.

[0017] According to one embodiment of this application, a hatch is also provided at the position corresponding to the data card slot on the panel, and one side of the hatch is rotatably connected to the panel to cover or open the data card slot.

[0018] This invention focuses on the vibration and heat dissipation design of high-power data cards and the overall configuration of high-power data cards for installation in aircraft racks. Through modeling comparison and theoretical analysis, it is confirmed that the vibration and heat dissipation configuration of the data card is simple, improving the stability and reliability of the data card in terms of vibration and heat dissipation. Specific beneficial effects are as follows:

[0019] 1) Improved the vibration resistance of the data card.

[0020] Currently, due to the need to ensure smooth insertion and removal, avoid interference with surrounding structural components, and facilitate maintenance, data cards typically have a clearance fit with most surrounding structural components inside the product. The ends of the data cards are fixed only by the fit between connectors. The connectors are subject to environmental limitations and relatively high stress during installation, resulting in poor vibration resistance and affecting the overall performance of the product. The risk of product failure due to vibration is relatively high.

[0021] In this invention, innovative mounting bosses with locking devices are designed on both sides of the data card, and the locking devices are fixedly engaged with the data card. After the data card is pushed into the slot inside the aircraft frame and connected to the connector, the locking devices are locked in place. At this time, the bosses on both sides of the data card are fixed to the internal platform of the aircraft frame by the locking devices, thereby significantly improving the vibration resistance of the data card.

[0022] The locking device consists of wedge-shaped locking bars on both sides and a locking handle on one side. The locking handle is L-shaped and can rotate 90 degrees along its axis that mates with the wedge-shaped locking bars. During the rotation, the wedge-shaped locking bars on both sides squeeze and depress against each other along the inclined plane, thereby locking and unlocking the wedge-shaped locking bars. When the locking handle is horizontal, the wedge-shaped locking bars are in the unlocked state, and the locking handle can be used as a handle to pull the data card out of the aircraft rack.

[0023] 2) The heat dissipation structure of the data card has been optimized.

[0024] Currently, most data cards are designed to be installed in locally sealed areas inside aviation products. Due to the need for data card insertion, removal, and maintenance, they are in a clearance fit with most of the surrounding structural components inside the product. This prevents most of the heat generated from the data card from being transferred to the aircraft frame through heat transfer, causing the data card temperature to become too high and affecting the overall performance of the product, thus increasing the risk of product failure.

[0025] In this invention, when the data card is in operation, the heat generated by the heat dissipation devices on its internal modules is transferred to the aircraft frame through the protrusions on both sides of the data card (used for fixing and locking devices), and then dissipated into the environment through the heat dissipation fins on the outside of the aircraft frame. The heat generated by the data card can also be directly dissipated into the external environment through its own heat dissipation fins, thus achieving the effect of heat dissipation.

[0026] 3) Innovative aircraft frame design

[0027] In this invention, the aircraft product's rack is isolated and divided into two areas. Except for the bottom, which is in contact with the outside air, the rest is a sealed internal cavity structure. One sealed area is for mounting high-power module boards, while the other open area is for mounting high-power data cards. This design achieves reasonable heat dissipation while preventing heat from the high-power module boards and high-power data cards from interfering with each other. The aircraft rack's exterior is designed with heat dissipation fins and ventilation holes for overall heat dissipation. The area on the aircraft rack panel that mates with the data card is designed with an irregular shape to push the data card into the aircraft rack, preventing errors. The rear end of the aircraft rack, where it mates with the data card, has an annular sealing groove for placing a sealing gasket. After the data card and aircraft rack are properly fitted, a seal is achieved, effectively resisting corrosion from mold, salt spray, and other environmental factors.

[0028] The main components involved in this invention are all structural parts, which play a positive role in the vibration resistance and heat dissipation of the data card. This vibration-resistant and heat-dissipating configuration for the data card is simple to assemble, maintain, and operate, and is easy to implement, effectively improving the overall performance of aviation products and making them more stable and reliable. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a first schematic diagram of an aviation device having a data card according to an embodiment of the present invention;

[0031] Figure 2 This is a second schematic diagram of an aviation device having a data card according to an embodiment of the present invention;

[0032] Figure 3 This is a third schematic diagram of an aviation device having a data card according to an embodiment of the present invention;

[0033] Figure 4 This is a fourth schematic diagram of an aviation device having a data card according to an embodiment of the present invention;

[0034] Figure 5This is a first schematic diagram of the aircraft frame structure of the aviation equipment according to an embodiment of the present invention;

[0035] Figure 6 This is a second schematic diagram of the aircraft frame structure of the aviation equipment according to an embodiment of the present invention;

[0036] Figure 7 This is a first schematic diagram of the data card structure according to an embodiment of the present invention;

[0037] Figure 8 This is a second schematic diagram of the data card structure according to an embodiment of the present invention;

[0038] Figure 9 This is a first schematic diagram of the locking device according to an embodiment of the present invention;

[0039] Figure 10 This is a second schematic diagram of the locking device according to an embodiment of the present invention;

[0040] Figure 11 This is a third schematic diagram of the locking device according to an embodiment of the present invention;

[0041] Figure 12 This is a fourth schematic diagram of the locking device according to an embodiment of the present invention;

[0042] Figure 13 for Figure 12 Sectional view of plane AA in the middle;

[0043] Among them, 1-Aircraft frame; 2-Door; 3-Locking device; 4-Data card; 5-Data card heat sink fins; 6-Aircraft frame heat sink fins; 7-Mating connector; 8-Sealing gasket; 9-Aircraft frame ventilation hole; 10-Wedge locking strip; 11-Data card mounting panel; 12-High power module board; 13-Sealed cavity; 14-Data card mounting boss; 15-Locking handle; 16-Cam mechanism; 17-Limiting boss; 18-Handheld area; 19-Fixed beam; 20-Moving part; 21-Pressed part; 22-Fastening screw hole. Detailed Implementation

[0044] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0045] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] like Figures 1-13 As shown, this embodiment of the invention provides a data card anti-vibration and heat dissipation locking structure, including:

[0047] The locking device 3 and the data card 4 are provided. The locking device 3 includes a locking handle 15 and a wedge-shaped locking bar 10. The two ends of the locking handle 15 are respectively connected to the wedge-shaped locking bar 10 through a cam mechanism 16. The two ends of the wedge-shaped locking bar 10 are respectively fixedly connected to the two sides of the data card 4 for mounting the data card 4 on the locking device 3.

[0048] An aircraft frame 1 includes a housing and a panel. The open side of the housing is fixedly connected to the panel to form a sealed cavity 13. Each edge of the bottom sidewall of the housing extends in a direction perpendicular to the bottom sidewall to form a circumferential extension edge. The circumferential extension edge and the panel surround to form an open cavity. A data card slot is provided on the panel at a position corresponding to the open cavity, for inserting the locking device 3 and the data card 4 into the open cavity simultaneously through the data card slot.

[0049] The structure of the wedge-shaped locking strip 10 is adapted to the inner wall structure on both sides of the open cavity. The locking handle 15 is fixedly connected to the cam mechanism 16. The cam mechanism 16 is rotatably connected to the wedge-shaped locking strip 10, so that the rotation angle of the locking handle 15 relative to the wedge-shaped locking strip 10 is 90°. By rotating the locking handle 15, the cam mechanism 16 is driven to rotate and squeeze the wedge-shaped locking strip 10, so that the squeezed and deformed wedge-shaped locking strip 10 abuts against the inner wall on both sides of the open cavity and locks it in place.

[0050] like Figures 9-13As shown, in one embodiment of this application, the wedge-shaped locking bar 10 includes a fixed beam 19 and a plurality of wedge-shaped blocks movably sleeved on the fixed beam 19. Each wedge-shaped block includes a movable portion 20 and a compressed portion 21 that can move along the wedge-shaped inclined surface. The movable portion 20 and the compressed portion 21 are spaced apart and staggered, used to compress the compressed portion 21 after the cam mechanism 16 rotates, causing the movable portion 20 to move along the wedge-shaped inclined surface and then protrude outwards, abutting against the inner walls of both sides of the open cavity and locking it in place. Specifically, the cam mechanism 16 is an L-shaped cam mechanism.

[0051] In this embodiment, the locking device 3 consists of wedge-shaped locking bars 10 on both sides and a locking handle 15 in the middle. The locking handle 15 can rotate 90 degrees along its own axis that mates with the wedge-shaped locking bars 10. During the rotation, the wedge-shaped locking bars 10 on both sides squeeze and depress against each other along the inclined surface to lock and unlock the wedge-shaped locking bars 10. When the locking handle 15 is horizontal, the wedge-shaped locking bars 10 are in the unlocked state. In one embodiment, the middle part of the locking handle 15 is recessed from the edge to form a handhold area 18. At this time, the data card 4 can be pulled out from the aircraft frame 1 through the handhold area 18 of the locking handle 15.

[0052] like Figures 7-8 As shown, in one embodiment of this application, data card mounting bosses 14 are fixedly provided on both sides of the data card 4. The data card mounting bosses 14 are fixedly connected to the fixing beam 19 to fix the wedge-shaped locking strips 10 to both sides of the data card 4. Specifically, the bottom of the fixing beam 19 is provided with fastening screw holes 22 to fix the data card mounting bosses 14 to the fixing beam 19 with screws. Figure 7 This is a schematic diagram showing the locking device in an unlocked state. Figure 8 This is a schematic diagram showing the state of the locking device when it is locked.

[0053] In this embodiment, the bottom of the open cavity is provided with a docking connector 7 for cooperating with the data card 4, and the bottom of the docking connector 7 is provided with a sealing gasket 8. The inner side of the locking handle 15 is provided with a limiting protrusion 17, which is used to limit the data card 4 when the data card 4 is locked in the open cavity, so that the data card 4 and the docking connector 7 are tightly engaged.

[0054] Additionally, the sidewall of the open cavity serves as a data card mounting panel 11. The area on this panel 11 that mates with the data card 4 is designed with an irregular shape to push the data card 4 into the open cavity of the aircraft frame 1, preventing errors. The rear end of the open cavity, where it mates with the data card 4, has an annular sealing groove for placing a sealing gasket 8, achieving a seal after the data card 4 and aircraft frame 1 are properly engaged. The data card 4 is inserted into the corresponding slot in the open cavity at the bottom of the aircraft frame and mates with the connector 7 at the rear end. The locking device 3 on the data card 4 mates with and locks into the aircraft frame 1.

[0055] In one embodiment, the side structure of the data card mounting protrusion 14 is adapted to the corresponding structure of the inner walls on both sides of the open cavity, so that when the locking device 3 and the data card 4 are simultaneously inserted into the open cavity, the data card mounting protrusion 14 is in close contact with the side wall of the open cavity. In this embodiment, the data card mounting protrusions 14 on both sides of the data card 4 and the locking device 3 are tightly fitted together to form a data card configuration that is both vibration-resistant and heat-dissipating. The data card mounting protrusions 14 are installed face-to-face with the inner cavity of the aircraft frame 1, which facilitates the transfer of heat from the data card 4 to the aircraft frame 1, thus promoting heat dissipation.

[0056] In addition, a high-power module board 12 is installed inside the sealed cavity 13, and the high-power module board 12 is designed to be installed in the sealed cavity 13 of the aircraft frame 1. The bottom of the aircraft frame 1 is designed as an open structure, with the rest being a sealed internal cavity structure except for the bottom which is in contact with the outside air. The data card 4 is designed to be installed in the open bottom of the aircraft frame, so the heat generated by the high-power module board 12 will not affect the data card 4. Based on this, if Figures 1-4 As shown, in one embodiment, the sealed cavity 13 is provided with aircraft frame heat dissipation fins 6 on its side wall, the open cavity is provided with aircraft frame ventilation holes 9 on its side wall, and the data card 4 is provided with data card heat dissipation fins 5 on its bottom wall. The sealed cavity 13 of the aircraft frame 1 is designed with aircraft frame heat dissipation fins 6 and aircraft frame ventilation holes 9 on its exterior for overall device heat dissipation. When the data card is in operation, the heat generated by the heat-dissipating devices on its internal modules is transferred to the aircraft frame through the mounting bosses on both sides of the data card and the aircraft frame, and then dissipated into the environment through the heat dissipation fins on the exterior of the aircraft frame. The heat generated by the data card can also be directly dissipated to the external environment through its own heat dissipation fins, achieving the effect of heat dissipation.

[0057] In one embodiment, a hatch 2 is also provided at the position corresponding to the data card slot on the panel. One side of the hatch 2 is rotatably connected to the panel to cover or open the data card slot. The data card slot is T-shaped.

[0058] In this embodiment of the invention, based on an existing type of aviation product, which contains high-power data cards and high-power module boards, it is necessary to focus on the reasonable layout of the overall structural strength of the product and the heat dissipation requirements caused by high power consumption. This is to prevent the heat generated by the high-power module boards and data cards inside the product from exceeding the maximum temperature for stable operation, thus affecting the safety and stability of the product's normal operation. Additionally, environmental testing considerations related to mold resistance and salt spray resistance are also necessary. Based on this, this embodiment of the invention provides a data card vibration-resistant heat dissipation locking structure that isolates the aviation product's frame and divides it into two areas: a sealed area (the aforementioned sealed cavity) for installing the high-power module boards, and an open area (the aforementioned open cavity) for installing the high-power data cards. This design achieves reasonable heat dissipation while preventing the heat generated by the high-power module boards and high-power data cards from interfering with each other. The aviation product frame is designed with heat dissipation fins on the outside, and heat dissipation bosses are designed inside the sealed area to dissipate heat from the high-power module boards to the aviation frame through heat transfer. The open area of ​​the aircraft rack is connected to the external environment, and the area where it interfaces with the high-power data card is designed with a sealing groove for installing a sealing gasket, which isolates it from the external environment and achieves electromagnetic shielding and sealing.

[0059] Building upon this foundation, locking devices on both sides of the data card effectively secure it to the aviation equipment, improving its stability under strong vibration environments. By incorporating heat dissipation fins on the data card and partially opening the data card mounting area within the product, heat dissipation is ensured through the locking devices while the data card is partially exposed to the outside of the product. The outer surface of the data card with heat dissipation fins is essentially part of the product's outer surface, directly dissipating the heat generated by the data card to the external environment. This enhances the overall vibration resistance, heat dissipation, and stability of the data card.

[0060] The main components involved in this invention are all structural parts, which play a positive role in the vibration resistance and heat dissipation of the data card. This vibration-resistant and heat-dissipating configuration for the data card is simple to assemble, maintain, and operate, and is easy to implement, effectively improving the overall performance of aviation products and making them more stable and reliable.

[0061] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A data card anti-vibration and heat dissipation locking structure, characterized in that, include: A locking device and a data card, wherein the locking device includes a locking handle and a wedge-shaped locking bar, the two ends of the locking handle are respectively connected to the wedge-shaped locking bar through a cam mechanism, and the two ends of the wedge-shaped locking bar are respectively fixedly connected to the two sides of the data card for assembling the data card onto the locking device; An aircraft frame includes a housing and a panel. The open side of the housing is fixedly connected to the panel to form a sealed cavity. Each edge of the bottom sidewall of the housing extends in a direction perpendicular to the bottom sidewall to form a circumferential extension edge. The circumferential extension edge and the panel surround to form an open cavity. A data card slot is provided on the panel at a position corresponding to the open cavity, for inserting the locking device and the data card into the open cavity simultaneously through the data card slot. The structure of the wedge-shaped locking strip is adapted to the structure of the inner walls on both sides of the open cavity. The locking handle is fixedly connected to the cam mechanism, and the cam mechanism is rotatably connected to the wedge-shaped locking strip. By rotating the locking handle, the cam mechanism is rotated to squeeze the wedge-shaped locking strip, so that the squeezed and deformed wedge-shaped locking strip abuts against the inner walls on both sides of the open cavity and locks it in place. The wedge-shaped locking bar includes a fixed beam and a plurality of wedge-shaped blocks movably sleeved on the fixed beam. Each wedge-shaped block includes a movable part that can move along the wedge-shaped inclined surface and a squeezed part. The movable part and the squeezed part are arranged alternately and spaced apart from each other. After the cam mechanism rotates, the squeezed part is squeezed, causing the movable part to move along the wedge-shaped inclined surface and then protrude outward, abutting against the inner walls of both sides of the open cavity and locking it in place. The sealed cavity has aircraft frame heat dissipation fins on its side wall, the open cavity has aircraft frame ventilation holes on its side wall, and the data card has data card heat dissipation fins on its bottom wall.

2. The data card anti-vibration heat dissipation locking structure according to claim 1, characterized in that, The locking handle rotates at a 90° angle relative to the wedge-shaped locking bar.

3. The data card anti-vibration heat dissipation locking structure according to claim 1, characterized in that, Data card mounting bosses are fixedly provided on both sides of the data card. The data card mounting bosses are fixedly connected to the fixing beam to fix the wedge-shaped locking strips to both sides of the data card.

4. The data card anti-vibration heat dissipation locking structure according to claim 3, characterized in that, The side structure of the data card mounting boss is adapted to the corresponding structure of the inner walls on both sides of the open cavity, so that when the locking device and the data card are inserted into the open cavity at the same time, the data card mounting boss is in close contact with the side wall of the open cavity.

5. The data card anti-vibration heat dissipation locking structure according to claim 1, characterized in that, The bottom of the open cavity is provided with a docking connector for mating with the data card, and the bottom of the docking connector is provided with a sealing gasket.

6. The data card anti-vibration heat dissipation locking structure according to claim 5, characterized in that, A limiting protrusion is provided on the inner side of the locking handle. When the data card is locked in the open cavity, the limiting protrusion limits the data card, so that the data card can be tightly fitted with the docking connector.

7. The data card anti-vibration heat dissipation locking structure according to claim 1, characterized in that, The locking handle is recessed inward from the edge to form a hand-holding area.

8. The data card anti-vibration heat dissipation locking structure according to claim 1, characterized in that, A hatch is also provided at the position corresponding to the data card slot on the panel. One side of the hatch is rotatably connected to the panel to cover or open the data card slot.

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