Chip fixing structure of flight data recording black box

Abstract

The utility model provides a chip fixing structure of a flight data recording black box, which comprises a chip and is characterized by further comprising a chip fixing plate and a fixing strip, and the chip fixing plate is used for being fixed inside the black box; the middle part of the chip fixing plate is sunken downwards to form a containing cavity for placing a chip; a plurality of fixing columns are arranged on the bottom wall of the containing cavity, one end face of the chip is fixed to the fixing columns, the two ends of a fixing strip are fixed to the inner circumferential wall in the vertical direction of the containing cavity respectively, and the middle of the fixing strip is pressed on the other end face of the chip. The device can be applied to most aircrafts, and is simple in structure, stable and firm.

Description

Technical Field

[0001] This utility model relates to the field of black box technology, and more specifically, to a chip fixing structure for a flight data recording black box. Background Technology

[0002] During flight, the aircraft's trajectory and status parameters need to be recorded to facilitate subsequent analysis and improvement of the aircraft's flight status by researchers. The flight data recorded by the black box can help technicians quickly locate fault points, such as abnormal engine shutdown, control system failure, or sensor errors. The principle is that the flight system calculates the flight status and records flight parameters, transmitting them to a memory for data storage.

[0003] In existing black box structures, memory chips are strictly encapsulated in wreck-resistant protective shells to prevent damage. Patent document CN113766806A discloses a black box for recording in which the SSD storage component is simply fixed in a flat manner. Once the memory chip is detached due to high-frequency vibration in the flight environment or the devastating impact during a crash, it will cause irreversible damage. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a chip fixing structure for a flight data recording black box, which can be applied to most aircraft, and is simple, stable and robust.

[0005] This utility model provides a chip fixing structure for a flight data recording black box, including a chip, a chip fixing plate, and a fixing strip. The chip fixing plate is used to fix the chip inside the black box. The middle part of the chip fixing plate is recessed downward to form a cavity for the chip to be placed in. Several fixing posts are provided on the bottom wall of the cavity. One end face of the chip is fixed on the several fixing posts. The two ends of the fixing strip are respectively fixed on the inner peripheral wall of the cavity in the vertical direction, and the middle part of the fixing strip is pressed against the other end face of the chip.

[0006] Compared with the prior art, this application has the following advantages: the cavity opening allows the chip to be electrically connected to the electronic components inside the black box via wiring; the chip can be placed in the cavity, where it is limited by the cavity bottom and walls, and fixed by the fixing posts to prevent it from coming out of the cavity opening; to cope with the high-frequency vibration in the aircraft's flight environment and the devastating impact during a crash, the chip is pressed against the fixing strip, and the two ends of the fixing strip are fixed to the inner peripheral wall of the cavity in the vertical direction, which can effectively prevent the chip from coming out of the fixing posts.

[0007] In one possible implementation, the fixing strip is an elastic element. When both ends of the fixing strip are fixed to the inner peripheral wall of the cavity in the vertical direction, the middle part of the fixing strip tends to move towards the bottom wall of the cavity and abut against the other end face of the chip.

[0008] Compared with existing technologies, the above technical solution can effectively compress the chip and prevent it from coming off.

[0009] In one possible implementation, at least one pair of first insertion holes are provided on the inner peripheral wall of the cavity in the vertical direction; the two ends of the fixing strip pass through the two first insertion holes respectively and are bent and fixed to the outer peripheral wall of the cavity.

[0010] Compared with existing technologies, the above technical solution facilitates the installation of fixing strips and makes it easier to tighten.

[0011] In one possible implementation, the bottom wall of the cavity is further provided with an adhesive post for bonding to one end face of the chip, and the end of the adhesive post is coated with adhesive.

[0012] Compared with existing technologies, the above technical solution can further fix the chip in place and prevent the chip from falling out.

[0013] In one possible implementation, the chip has a cuboid plate structure; the cavity has a cuboid structure; there are four fixing posts, which are respectively arranged at the four corners of the bottom wall of the cavity, so that the four corners of the chip are fixed to the four fixing posts by screws; the adhesive post is located in the middle of the bottom of the cavity.

[0014] Compared with existing technologies, the above technical solution can further fix the chip in all directions and prevent the chip from falling out.

[0015] In one possible implementation, there are two fixing strips; a pair of second insertion holes are also provided on the inner peripheral wall of the cavity in the vertical direction, and the first insertion hole and the second insertion hole are arranged in the horizontal direction; the two ends of the two fixing strips pass through the two first insertion holes and the two second insertion holes respectively and are pressed against the upper surface of the chip, and the two ends of the two fixing strips are bent and fixed to the outer peripheral wall of the cavity.

[0016] Compared with existing technologies, the above technical solution can fully press the chip surface to prevent the chip from coming out, and the chip surface is partially exposed for electrical connection with the internal electrical components of the black box.

[0017] In one possible implementation, both retaining strips are pressed against the upper surface of the screw.

[0018] Compared with existing technologies, the above technical solution can tighten the screws, prevent them from loosening, and make them more secure.

[0019] In one possible implementation, both ends of the two fixing strips are bent and then bonded to the cavity with aerospace structural adhesive.

[0020] Compared with existing technologies, the above technical solution can make the two ends of the two fixing strips more secure. When disassembling, the adhesive joint can be removed by force. This is because disassembly is only carried out in the event of a malfunction of the aircraft, such as a crash, and is not carried out in most cases.

[0021] In one possible implementation, mounting holes are provided at all four corners of the chip mounting plate.

[0022] Compared with existing technologies, the above technical solution can effectively fix the chip mounting plate inside the black box. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the fixing strip of this utility model;

[0025] Figure 3 This is a schematic diagram of the fixing column and the adhesive column of this utility model;

[0026] Figure 4 This is a side view of the present invention;

[0027] Figure 5 This is a cross-sectional view of the test direction of this utility model;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Chip, 2-Chip fixing plate, 3-Fixing strip, 21-Cavity, 22-Fixing hole, 211-Fixing post, 212-First insertion hole, 213-Adhesive post, 214-Second insertion hole. Detailed Implementation

[0030] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0031] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0032] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0034] This embodiment discloses a chip fixing structure for a flight data recording black box, including a chip 1, a chip fixing plate 2, and a fixing strip 3. The chip fixing plate 2 is used to fix the chip inside the black box. The middle part of the chip fixing plate 2 is recessed downward to form a cavity 21 for the chip 1 to be placed in. A plurality of fixing posts 211 are provided on the bottom wall of the cavity 21. One end face of the chip 1 is fixed on the plurality of fixing posts 211. The two ends of the fixing strip 3 are respectively fixed on the inner peripheral wall of the cavity 21 in the vertical direction, and the middle part of the fixing strip 3 is pressed against the other end face of the chip 1. A screw hole extending axially is provided on the fixing post 211, and a corresponding screw hole is provided on the chip 1. In this way, the chip 1 can be placed in the cavity 21 and fixed to the fixing post 211 by screws. The chip 1 is limited by the bottom and wall of the cavity 21, so that the chip 1 will not come out from the opening of the cavity 21. In order to cope with the high-frequency vibration in the flight environment of the aircraft and the devastating impact during the crash, the upper surface of the chip 1 is pressed by the fixing strip 3, and the two ends of the fixing strip 3 are fixed to the outer peripheral wall of the cavity 21. This can effectively prevent the chip 1 from coming out of the fixing post 211. The opening of the cavity 21 is for the chip 1 to be electrically connected to the electronic components inside the black box.

[0035] As attached Figure 2 As shown, in some embodiments, the fixing strip 3 is an elastic element. When both ends of the fixing strip 3 are fixed to the inner peripheral wall of the cavity 21 in the vertical direction, the middle part of the fixing strip 3 tends to move towards the bottom wall of the cavity 21 and abut against the other end face of the chip 1. The fixing strip 3 is made of metal, and in order to maintain a certain elasticity, the fixing strip 3 can be made relatively thin.

[0036] As attached Figure 1 Appendix Figure 4 and attached Figure 5As shown, in some embodiments, at least one pair of first insertion holes 212 are provided on the inner peripheral wall of the cavity 21 in the vertical direction; the two ends of the fixing strip 3 pass through the two first insertion holes 212 respectively and are bent and fixed to the outer peripheral wall of the cavity 21. The two ends of the fixing strip 3 are fixed to the outer peripheral wall of the cavity 21 by aviation fixing adhesive, or they can be fixed by welding.

[0037] As attached Figure 3 and attached Figure 5 As shown, in some embodiments, the bottom wall of the cavity 21 is further provided with an adhesive post 213 for bonding to one end face of the chip 1, and the end of the adhesive post 213 is coated with an adhesive. The adhesive can be an aerospace structural adhesive, which has the characteristics of vibration fatigue resistance, low creep and high endurance strength, and a temperature resistance range covering -50℃ to +260℃. It can withstand high altitude low temperature, engine high temperature and chemical corrosion. Compared with traditional riveting or welding, it can reduce the weight of the aircraft by 15%-30%, which can further fix the bottom surface of the chip 1 and prevent the chip 1 from falling out.

[0038] As attached Figure 3 As shown, in some embodiments, chip 1 has a cuboid plate structure; cavity 21 has a cuboid structure; there are four fixing posts 211, which are respectively arranged at the four corners of the bottom wall of cavity 21, so that the four corners of chip 1 are fixed to the four fixing posts 211 by screws 4; adhesive post 213 is arranged in the middle of the bottom of cavity 21. In this embodiment, the size of cavity 21 is slightly larger than the size of chip 1, so that chip 1 can be completely inserted and limited by cavity wall and cavity bottom.

[0039] As attached Figure 2 and attached Figure 4 As shown, in some embodiments, there are two fixing strips 3; a pair of second insertion holes 214 are also provided on the inner peripheral wall of the cavity 21 in the vertical direction, and the first insertion hole 212 and the second insertion hole 214 are arranged in the horizontal direction; the two ends of the two fixing strips 3 pass through the two first insertion holes 212 and the two second insertion holes 214 respectively and are pressed against the upper surface of the chip 1, and the two ends of the two fixing strips 3 are bent and fixed to the outer peripheral wall of the cavity 21. This can fully press the upper surface of the chip 1 to prevent the chip 1 from falling out, and part of the upper surface of the chip 1 is exposed for wiring when electrically connecting to the electrical components inside the black box.

[0040] As attached Figure 2 and attached Figure 5 As shown, in some embodiments, both ends of the two fixing strips 3 are bent and bonded to the cavity 21 with aerospace structural adhesive. This tightens the screw 4, preventing it from loosening and making it more secure.

[0041] As attached Figure 5As shown, in some embodiments, both fixing strips 3 are pressed against the upper surface of the screw 4. This makes the ends of the two fixing strips 3 more securely fixed. During disassembly, the adhesive joint can be removed by force, such as cutting or prying it open, because disassembly is only performed in the event of an aircraft malfunction, such as a crash, and is not performed in most cases.

[0042] As attached Figure 1 As shown, in some embodiments, mounting holes 22 are provided around the chip mounting plate 2. The mounting holes 22 are screw holes, which can effectively fix the chip mounting plate 2 inside the black box.

[0043] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component 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.

[0044] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] 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 chip fixing structure of a flight data recorder black box, comprising a chip (1), characterized in that, Also include chip fixing plate (2) and fixed strip (3), the chip fixing plate (2) is used for fixing in the black box inside, the middle part of the chip fixing plate (2) is recessed downward and forms a cavity (21) for the chip (1) is put into, the bottom wall of the cavity (21) is provided with a plurality of fixed columns (211), one end surface of the chip (1) is fixed on a plurality of fixed columns (211), and the fixed strip (3) is fixed on the inner circumferential wall of the cavity (21) in the up-down direction respectively, and the middle part of the fixed strip (3) is pressed on the other end surface of the chip (1).

2. The chip fixing structure according to claim 1, wherein The fixed strip (3) is an elastic member, when the fixed strip (3) is fixed on the inner circumferential wall of the cavity (21) in the up-down direction respectively, the middle part of the fixed strip (3) has a tendency to move to the bottom wall of the cavity (21) and abuts against the other end surface of the chip (1).

3. The chip fixing structure according to claim 2, wherein At least one pair of first insertion holes (212) is formed on the inner circumferential wall of the cavity (21) in the up-down direction; the two ends of the fixed strip (3) pass through two first insertion holes (212) and are bent to be fixed with the outer circumferential wall of the cavity (21).

4. The chip fixing structure according to claim 3, wherein The bottom wall of the cavity (21) is also provided with an adhesive column (213) for bonding with one end surface of the chip (1), and the end of the adhesive column (213) is coated with an adhesive.

5. The chip fixing structure according to claim 4, wherein The chip (1) is in the form of a rectangular plate structure; the cavity (21) is in the form of a rectangular structure; the fixed column (211) is four, respectively arranged at the four corners of the bottom wall of the cavity (21), so that the four corners of the chip (1) are fixed by screws (4) and four fixed columns (211); the adhesive column (213) is arranged at the middle of the bottom of the cavity (21).

6. The chip fixing structure according to claim 5, wherein The fixed strip (3) is two; a pair of second insertion holes (214) is also formed on the inner circumferential wall of the cavity (21) in the up-down direction, and the first insertion hole (212) and the second insertion hole (214) are arranged in the left-right direction; the two ends of the two fixed strips (3) pass through two first insertion holes (212) and two second insertion holes (214) respectively and are pressed on the upper surface of the chip (1), and the two ends of the two fixed strips (3) are bent to be fixed with the outer circumferential wall of the cavity (21).

7. The chip fixing structure according to claim 6, wherein The two ends of the two fixed strips (3) are bent to be fixed with the cavity (21) by aviation structural adhesive.

8. The chip fixing structure according to claim 7, wherein The two fixed strips (3) are pressed on the upper surface of the screw (4).

9. The chip fixing structure according to claim 5, 6, 7 or 8, characterized by, The fixed holes (22) are formed at the four corners of the chip fixing plate (2).

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