Integrated comprehensive backup electronic instrument device

Abstract

The utility model provides an integrated comprehensive backup electronic instrument device which comprises a comprehensive display module, a heading attitude module, an atmosphere module, a power supply module and a structure module, and the structure module comprises a main shell, an upper cover plate and a rear cover plate; wherein the comprehensive display module is mounted at the front end of the main shell; the heading attitude module is mounted on a front end bottom plate in the main shell and is close to the comprehensive display module; the atmosphere module is installed in the main shell and located above the heading attitude module, and the atmosphere module is close to the comprehensive display module; the power supply module is installed in the main shell and located above the atmosphere module. The upper cover plate and the rear cover plate cover the main shell. Through three-dimensional space layout optimization of the heading attitude module, the atmosphere module, the power supply module and the comprehensive display module, the device has the advantages of space saving, compact layout, convenience in installation, good maintenance and the like, the space length of the device is shortened, the overall weight of the device is reduced, and integration of the device is realized.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft avionics systems, specifically relating to an integrated backup electronic instrument device. Background Technology

[0002] Integrated backup electronic instruments can simultaneously replace the backup indications of multiple traditional instruments such as the horizon, altimeter, airspeed indicator, and Mach number indicator on a single display instrument, enabling the display (indication) of important flight parameters such as aircraft attitude angles (pitch angle, roll angle), heading, airspeed, altitude, and Mach number. In special circumstances where the main instrument system fails, this highly integrated backup instrument is very helpful for pilots to safely handle emergencies while controlling the aircraft.

[0003] When some or all of the aircraft's air data system, inertial navigation system, heading and attitude system, electronic flight instrument system, and main power supply fail, causing the main flight instrument displays to malfunction, the emergency backup instrument system provides the pilot with a set of parameters essential for flight safety, including airspeed, altitude, attitude, and heading. This information allows the pilot to execute relevant emergency safety maneuvers, enabling a swift emergency return and safe landing. Currently, emergency backup instrument systems have evolved from traditional separate mechanical or electromechanical instrument systems into highly integrated and digital emergency backup display systems.

[0004] Integrated emergency backup display systems, with their advantages of rich and intuitive information display, easy identification, small footprint, and ability to enable glass cockpit designs, are widely used in large and medium-sized civil aircraft and business jets, and are also beginning to be adopted in high-end small aircraft and helicopters. Large and medium-sized business jets have generally adopted integrated emergency backup instrument display systems to attract a wider customer base.

[0005] Currently, commonly used integrated backup electronic instruments consist of six main parts: a light guide plate assembly, a display module, an atmospheric calculation module, an attitude calculation module, a power supply module, and a structural module. Generally, the light guide plate and display module are separate, dedicated modules with both physical and electrical interfaces. Reversed or misaligned electrical interfaces prevent effective electrical connection. Due to installation reliability and waterproof / dustproof requirements, the machining requirements for mechanical and interface surfaces are very high, resulting in high manufacturing difficulty and poor economic efficiency. The large number of functional modules, interactions between modules, and internal components leads to an unreasonable module layout, resulting in dispersed internal components, complex spatial arrangement, low integration, excessive weight, and large size. Furthermore, the small mounting cross-section on aircraft panels contributes to the long dimensions of the integrated backup electronic instruments and the long cantilever structure, further increasing the vibration of tail components. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology in terms of large size, and to provide an integrated backup electronic instrument device. Through the optimization of the three-dimensional spatial layout of the attitude module, atmospheric module, power supply module and integrated display module, it has the advantages of saving space, compact layout, convenient installation and good maintenance, which shortens the spatial length of the instrument device and reduces the overall weight, thus realizing the integration of the instrument device.

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] An integrated backup electronic instrument device includes: an integrated display module, a flight attitude module, an atmospheric module, a power supply module, and a structural module. The structural module includes: a main housing, a top cover, and a rear cover.

[0009] The integrated display module is installed at the front end of the main housing;

[0010] The attitude control module is installed on the front bottom plate inside the main housing, and the attitude control module is close to the integrated display module;

[0011] The atmospheric module is installed inside the main housing and located above the attitude module, and the atmospheric module is close to the integrated display module;

[0012] The power module is installed inside the main housing and located above the atmospheric module;

[0013] Both the upper cover and the rear cover cover the main housing.

[0014] As a further limitation of this utility model, it also includes: a power supply board;

[0015] The power board and the atmospheric module are installed on top of the attitude control module, with the power board located above the atmospheric module and the power module mounted on the power board.

[0016] As a further limitation of this utility model, it also includes: an interface expansion board;

[0017] The interface expansion board is installed on top of the attitude control module, layered with the atmospheric module, with the interface expansion board located above the atmospheric module.

[0018] As a further limitation of this utility model, the attitude module is located at the front end of the main housing and at the bottom plate of the main housing, so as to realize that the attitude module is installed in the front bottom of the main housing.

[0019] The atmospheric module and the power module are arranged side-by-side in layers within the main housing.

[0020] As a further limitation of this utility model, the integrated display module calculates the raw data into flight parameters and displays them on the display screen;

[0021] The atmospheric module receives total pressure and static pressure signals and outputs raw atmospheric data for the integrated display module to calculate. The atmospheric module communicates with the power module via RS422.

[0022] The attitude module outputs angular velocity and acceleration information, and the attitude module communicates with the power module via RS232.

[0023] The power module filters, regulates, and transforms the externally input 28VDC power supply, converting it into a stable operating power supply required by each module within the integrated backup electronic instrument device.

[0024] As a further limitation of this utility model, the integrated display module includes: a housing assembly, a display screen assembly, an optical assembly, and a circuit assembly, wherein the display screen assembly, the optical assembly, and the circuit assembly are sequentially installed inside the housing assembly;

[0025] The atmospheric module includes: a pressure sensor unit and a functional circuit board, wherein the pressure sensor unit transmits air pressure parameters to the functional circuit board;

[0026] The attitude module includes an inertial measurement unit, a three-axis MEMS gyroscope, and a three-axis MEMS accelerometer, which are built into the attitude module.

[0027] The power module includes a power board and a filter printed circuit board connected together.

[0028] As a further limitation of this utility model, the housing assembly includes: a light guide plate button panel, a display screen mounting housing, an optical component mounting housing, and a display module main housing. The light guide plate button panel is located at the front end of the integrated display module and is used to adjust the display screen assembly. The display screen mounting housing mounts the display screen assembly, and the optical component mounting housing fixes the optical component.

[0029] The advantages of this utility model are:

[0030] 1. This utility model optimizes the three-dimensional spatial layout of the attitude module, atmospheric module, power supply module and integrated display module, which has the advantages of saving space, compact layout, convenient installation and good maintenance, shortening the spatial length of the instrument device and reducing the overall weight, thus realizing the integration of the instrument device.

[0031] 2. This utility model places the attitude and bearing module at the front and bottom to reduce the impact of instrument vibration on the inertial measurement unit inside the attitude and bearing module.

[0032] 3. This utility model arranges the attitude module, atmospheric module, interface expansion board and power board in parallel layers, which has the advantages of saving space, compact wiring, convenient installation and good maintenance, shortening the spatial length of the structural modules, reducing the overall weight and realizing integration.

[0033] 4. This utility model integrates the light guide plate and the display module into one design, eliminating the need for error prevention design and interface sealing design for the light guide plate and the display module. It has good waterproof and dustproof performance and integrated installation performance, improving the degree of integration.

[0034] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0036] Figure 1 This utility model provides a schematic diagram of the system composition of an integrated backup electronic instrument device;

[0037] Figure 2 This utility model provides an assembly schematic diagram of an integrated backup electronic instrument device;

[0038] Figure 3 : A schematic diagram of the overall assembly of the integrated display module provided by this utility model;

[0039] Figure 4 : A schematic diagram of the integrated display module provided by this utility model;

[0040] Figure 5 : A schematic diagram of the overall assembly of the attitude and bearing module provided by this utility model;

[0041] Figure 6 This utility model provides an assembly schematic diagram of the atmospheric module.

[0042] Figure 7 : A schematic diagram of the overall assembly of the power module provided by this utility model;

[0043] Figure 8 : A schematic diagram of the overall assembly of the structural modules provided by this utility model;

[0044] In the diagram: 1-Integrated display module; 11-Housing assembly; 12-Display assembly; 13-Optical assembly; 14-Circuit assembly; 2-Attitude and flight module; 3-Atmosphere module; 4-Power module; 41-Power board; 42-Filter printed circuit board; 5-Structural module; 51-Main housing; 52-Top cover; 53-Rear cover. Detailed Implementation

[0045] The embodiments of the present invention are described in detail below. These embodiments are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0046] Please see Figure 1 and Figure 2 This utility model embodiment provides an integrated backup electronic instrument device, including: an integrated display module 1, an attitude and bearing module 2, an atmospheric module 3, a power supply module 4, and a structural module 5. Please refer to [link / reference]. Figure 8 The structural module 5 includes: a main housing 51, an upper cover plate 52, and a rear cover plate 53; wherein: the integrated display module 1 is installed at the front end of the main housing 51; the attitude module 2 is installed on the front bottom plate inside the main housing 51, and the attitude module 2 is close to the integrated display module 1; the atmosphere module 3 is installed inside the main housing 51 and is located above the attitude module 2, and the atmosphere module 3 is close to the integrated display module 1; the power module 4 is installed inside the main housing 51 and is located above the atmosphere module 3; the upper cover plate 52 and the rear cover plate 53 both cover the main housing 51.

[0047] This utility model embodiment optimizes the three-dimensional spatial layout of the attitude module 2, atmospheric module 3, power module 4, and integrated display module 1, which has the advantages of saving space, compact layout, convenient installation, and good maintenance. It shortens the spatial length of the instrument device and reduces the overall weight, thereby realizing the integration of the instrument device.

[0048] Please continue reading. Figure 1 In order to realize the installation of the power module 4, the integrated backup electronic instrument device of this utility model embodiment includes, in addition to the integrated display module 1, attitude module 2, atmosphere module 3, power module 4 and structural module 5, a power board 41; the power board 41 and the atmosphere module 3 are installed on the top of the attitude module 2, the power board 41 is located on the top of the atmosphere module 3, and the power module 4 is installed on the power board 41.

[0049] For further information, please refer to [link / reference]. Figure 1 An integrated backup electronic instrument device according to an embodiment of the present invention includes, in addition to: an integrated display module 1, an attitude and bearing module 2, an atmosphere module 3, a power supply module 4, and a structural module 5, an interface expansion board; the interface expansion board and the atmosphere module 3 are installed in layers on top of the attitude and bearing module 2, with the interface expansion board located on top of the atmosphere module 3.

[0050] In this embodiment of the utility model, the atmospheric module 3, the interface expansion board and the power module 4 are installed horizontally on top of the attitude module 2 in sequence, close to the integrated display module 1. The horizontal length of the interface expansion board is designed according to the number of parts / components and space requirements of each interface expansion board. This layout design has the advantages of saving space, compact wiring and convenient installation.

[0051] Please continue reading. Figure 1 In this embodiment of the invention, the attitude control module 2 is located at the front end of the main housing 51 of the structural module 5 and on the bottom plate of the main housing 51, so as to realize the attitude control module 2 being installed at the front bottom inside the main housing 51; the atmospheric module 3 and the power module 4 are arranged in parallel layers inside the main housing 51. This embodiment of the invention places the attitude control module 2 at the front bottom to reduce the impact of instrument vibration on the inertial measurement unit inside the attitude control module 2.

[0052] Based on the above-disclosed solution, this utility model embodiment further describes the functions and signal flow of each module in an integrated backup electronic instrument device as follows:

[0053] (1) The integrated display module 1 of this utility model embodiment calculates the raw data into flight parameters and displays them on the display screen; please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 The integrated display module 1 of this utility model embodiment includes: a housing assembly 11, a display screen assembly 12, an optical assembly 13, and a circuit assembly 14. The display screen assembly 12, the optical assembly 13, and the circuit assembly 14 are sequentially installed inside the housing assembly 11. The integrated display module 1 of this utility model embodiment is connected and fixed to the main housing 51 and the upper cover plate 52 of the structural module 5 by a screw assembly, and communicates with the power module 4 through an interface connector. In addition, the integrated display module 1 of this utility model embodiment integrates the original two modules (light guide plate module and display module) into one module, which saves space and has better assemblability, interactivity, and maintainability. Specifically:

[0054] Please continue reading. Figure 4 and Figure 8The housing assembly 11 of this utility model embodiment includes: a light guide plate button panel, a display screen mounting housing, an optical component mounting housing, and a display module main housing 51. The light guide plate button panel is located at the front end of the integrated display module 1 and is used to adjust the display screen assembly 12. The display screen mounting housing mounts the display screen assembly 12 and mainly serves to fix the LCD screen assembly. The display screen mounting housing is mainly made of hard aluminum alloy, which has high strength, good conductivity, high structural stability, and is conducive to electromagnetic shielding. The optical component mounting housing fixes the optical component 13 and mainly serves to fix the optical component 13. It adopts an integrated structural design and has better thermal conductivity. The display module main housing 51 serves as the base for mounting the light guide plate button panel, the display screen mounting housing, and the optical component mounting housing. It also connects to the backup instrument device structural module 5 via screws.

[0055] (2) In this embodiment of the present invention, the atmospheric module 3 receives total pressure and static pressure signals and outputs raw atmospheric data for the integrated display module 1 to calculate. The atmospheric module 3 communicates with the power module 4 via RS422. The atmospheric module 3 in this embodiment of the present invention includes: a pressure sensor unit and a functional circuit board. The pressure sensor unit transmits air pressure parameters to the functional circuit board.

[0056] Please see Figure 1 and Figure 6 In this embodiment of the invention, the atmospheric module 3 is located within the inner cavity of the structural module 5, parallel to the bottom plate of the main housing 51, and positioned above the attitude control module 2 and below the power module 4. It is connected and fixed to the bottom plate of the main housing 51 of the structural module 5 using screws and mounting sleeves. The atmospheric module 3 includes two pressure sensor units (including air pipes and air inlets) and one functional circuit board. The air pressure connector and air pipe of the atmospheric module 3 are connected to an external air pressure connector to input external air pressure. The atmospheric sensors receive the input air pressure, collect total pressure and static pressure signals, process them, convert them into air pressure parameters, and transmit them to the functional circuit board. It also communicates with the power module 4 via an RS422 signal. Data information is sent to the integrated display module 1 via an interface connector.

[0057] (3) The attitude control module 2 of this embodiment outputs angular velocity and acceleration information. The attitude control module 2 communicates with the power supply module 4 via RS232. The attitude control module 2 of this embodiment includes an inertial measurement unit, a three-axis MEMS gyroscope, and a three-axis MEMS accelerometer, which are built into the attitude control module 2. Please continue reading. Figure 1 and Figure 8Specifically, in this embodiment of the present invention, the attitude module 2 is located in the inner cavity of the main housing 51, parallel to the bottom plate of the main housing 51, and arranged below the atmospheric module 3; it is connected and fixed to the bottom plate of the main housing 51 of the structural module 5 by screws, and communicates with the power module 4 via RS232.

[0058] (4) In this embodiment of the present invention, the power module 4 filters, regulates, and converts the externally input 28VDC power supply into a stable operating power supply required by each module within the integrated backup electronic instrument device. Please refer to [link to relevant documentation]. Figure 7 The power module 4 of this utility model embodiment includes a power board 41 and a filter printed circuit board 42 connected to each other.

[0059] (5) In this embodiment of the present invention, the structural module 5 preferably adopts a modular structure that is easy to install, thereby improving maintainability and testability. To meet the requirements for dimensional and weight specifications, the structural module 5 is made entirely of aluminum alloy, and its surface undergoes heat treatment and oxidation treatment to adapt to the requirements of the carrier aircraft environment. Please continue reading. Figure 8 In this embodiment of the present invention, the main housing 51 and the upper cover plate 52 are installed and fixed to the rear end of the integrated display module 1 by means of a stop fit and screw installation; the rear cover plate 53 is fixedly connected to the bottom surface of the main housing 51 and the upper cover plate 52 by screws; the atmospheric connector and the socket in this embodiment of the present invention are both fixed on the rear cover plate 53.

[0060] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. An integrated backup electronic instrument device, characterized in that, include: The system integrates a display module, attitude control module, atmospheric module, power supply module, and structural module. The structural module includes a main housing, an upper cover plate, and a rear cover plate. The integrated display module is installed at the front end of the main housing; The attitude control module is installed on the front bottom plate inside the main housing, and the attitude control module is close to the integrated display module; The atmospheric module is installed inside the main housing and located above the attitude module, and the atmospheric module is close to the integrated display module; The power module is installed inside the main housing and located above the atmospheric module; Both the upper cover and the rear cover cover the main housing.

2. The integrated backup electronic instrument device according to claim 1, characterized in that, Also includes: Power board; The power board and the atmospheric module are installed on top of the attitude control module, with the power board located above the atmospheric module and the power module mounted on the power board.

3. The integrated backup electronic instrument device according to claim 1, characterized in that, Also includes: Interface expansion board; The interface expansion board is installed on top of the attitude control module, layered with the atmospheric module, with the interface expansion board located above the atmospheric module.

4. The integrated backup electronic instrument device according to claim 1, characterized in that, The attitude control module is located at the front end of the main housing and at the bottom plate of the main housing, so as to realize the attitude control module is installed in the front bottom of the main housing; The atmospheric module and the power module are arranged side-by-side in layers within the main housing.

5. The integrated backup electronic instrument device according to claim 1, characterized in that, The integrated display module converts the raw data into flight parameters and displays them on the screen. The atmospheric module receives total pressure and static pressure signals and outputs raw atmospheric data for the integrated display module to calculate. The atmospheric module communicates with the power module via RS422. The attitude module outputs angular velocity and acceleration information, and the attitude module communicates with the power module via RS232. The power module filters, regulates, and transforms the externally input 28VDC power supply, converting it into a stable operating power supply required by each module within the integrated backup electronic instrument device.

6. The integrated backup electronic instrument device according to claim 5, characterized in that, The integrated display module includes: a housing assembly, a display screen assembly, an optical assembly, and a circuit assembly, wherein the display screen assembly, the optical assembly, and the circuit assembly are sequentially installed within the housing assembly; The atmospheric module includes: a pressure sensor unit and a functional circuit board, wherein the pressure sensor unit transmits air pressure parameters to the functional circuit board; The attitude module includes an inertial measurement unit, a three-axis MEMS gyroscope, and a three-axis MEMS accelerometer, which are built into the attitude module. The power module includes a power board and a filter printed circuit board connected together.

7. An integrated backup electronic instrument device according to claim 6, characterized in that, The housing assembly includes: a light guide plate button panel, a display screen mounting housing, an optical component mounting housing, and a display module main housing. The light guide plate button panel is located at the front end of the integrated display module and is used to adjust the display screen assembly. The display screen mounting housing mounts the display screen assembly, and the optical component mounting housing fixes the optical component.

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