Bilaterally symmetrical airborne atmosphere data sensor system

Abstract

The utility model discloses a bilateral symmetry airborne atmosphere data sensor system, and belongs to the field of airborne equipment atmosphere data sensors. The resolver is matched with a left L-shaped pressure sensor assembly and a right L-shaped pressure sensor assembly, a shell is designed to be cylindrical, and a gas circuit switching assembly, a sensor assembly interface, a communication sensor, a mounting flange and a circuit module assembly are designed. Wherein the cylindrical shells which are completely consistent on the left side and the right side can adapt to the opening requirements of aircraft skins in various special shapes, and the integrated forming process is adopted, so that high leakproofness is achieved; the left side and the right side of a circuit module assembly serving as a core are completely consistent, so that standardized unification and batch production are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to airborne atmospheric data sensor technical field, concretely relates to a kind of left-right symmetrical airborne atmospheric data sensor system. BACKGROUND

[0002] Airborne atmospheric data sensor is usually symmetrically installed on the left and right sides of the aircraft nose portion, for real-time sensing, solving flight parameters such as height, airspeed in the process of aircraft flight.

[0003] Airborne atmospheric data sensor is composed of probe part located on the outer surface of aircraft skin and resolver part located inside the aircraft skin. The probe part is used to sense the airflow characteristics during the flight of the aircraft, and the resolver is used to collect and process air pressure, incoming angle and other information and calculate atmospheric parameters for flight. The probe and the resolver have two connection modes: separated and integrated. The separated probe and the resolver are connected through a pipeline and can be arranged in different installation positions. The integrated probe is directly connected with the resolver together with part of the aircraft skin, forming a whole.

[0004] The L-shaped pressure sensor assembly is an integrated airborne atmospheric data sensor, which has excellent dynamic response characteristics, high reliability and easy maintenance, but is usually limited by the special requirements of aircraft skin separation and different resolver designs. Due to the different requirements of the left and right sides, the internal structure of the resolver is usually designed separately, which is not conducive to standardization and mass production. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of left-right symmetrical airborne atmospheric data sensor system, adopt left, right side symmetrical external structure to ensure the compatibility with on-board interface, adopt uniform design to make left, right side internal structure uniform, to realize internal hardware PCB support, PCB board etc. Standardized design.

[0006] The utility model provides a kind of left-right symmetrical airborne atmospheric data sensor system, including two airborne atmospheric data sensors, is installed on the left and right sides of the aircraft nose portion, each sensor includes: resolver and sensor; The resolver includes: mounting flange 5, air path switching assembly 6, sensor assembly 7, circuit module assembly 8, shell assembly 9;

[0007] The profile of mounting flange 5 is conformal with the aircraft fuselage skin at the installation position, and is fixed on the skin. The air path switching assembly 6, sensor assembly 7 and circuit module assembly 8 are fixed on the mounting flange 5 from bottom to top. The shell assembly 9 is sleeved outside the air path switching assembly 6, sensor assembly 7 and circuit module assembly 8. The shell assembly 9 is cylindrical.

[0008] The air path switching assembly 6 connects the internal closed air path of the sensor part and the sensor assembly 7;

[0009] The sensor assembly 7 is connected with the circuit module assembly 8, and the sensor assembly 7 is provided with a hardware identification interface of the installation position of the airborne atmospheric data sensor;

[0010] The circuit module assembly 8 of the two sensors and the shell assembly 9 are of the same structure.

[0011] Optionally, the mounting flange 5 is connected with the cylindrical shell assembly 9 through a circular interface.

[0012] Optionally, the circuit module assembly 8 is provided with an electric connector 14.

[0013] The cylindrical shell assembly 9 is formed by an integral molding process, and the top surface is provided with an opening through which the electric connector 14 extends.

[0014] Optionally, the circuit module assembly 8 is used to receive the level signal provided by the hardware identification interface of the sensor assembly 7, so as to realize the identification of the left and right installation positions by the solver.

[0015] Optionally, the circuit module assembly 8 comprises a switching plate assembly 10, a power supply plate assembly 11, a CPU plate assembly 12 and a support 13.

[0016] The switching plate assembly 10, the power supply plate assembly 11 and the CPU plate assembly 12 are all circular, and are sequentially arranged on the support 13 from top to bottom.

[0017] The electric connector 14 is connected with the switching plate assembly 10.

[0018] Optionally, the support 13 comprises a base, a top plate and a support plate.

[0019] The base, the top plate and the support plate are circular,

[0020] The switching plate assembly 10, the power supply plate assembly 11, the CPU plate assembly 12 and the support plate are arranged between the base and the top plate, and are connected through the penetrating bolts.

[0021] The top plate is provided with a through hole through which the electric connector 14 passes.

[0022] The utility model provides a kind of left-right symmetry's airborne atmospheric data sensor system, left, right side identical cylindrical shell can adapt to various special shape aircraft skin hole needs, using integrated molding process has stronger airtightness;As the core circuit module component design is left, right side identical, it is beneficial to standardization and mass production.Unilateral, circular structure is conducive to on-board skin hole, and improve processing efficiency and positioning accuracy.Circular structure is only through the outer diameter, height size adjustment, realize function outer expansion, it is beneficial to form serialization, standardization design. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is example installation attitude schematic view of the utility model;

[0024] Figure 2 It is example structure explosion schematic view of the utility model;

[0025] Figure 3 It is circuit module component structure diagram;

[0026] Figure 4 It is circuit module component hardware schematic;

[0027] Reference signs are explained as follows:

[0028] 1-left L-shaped pressure sensor, 2-right L-shaped pressure sensor, 3-aircraft front skin lower contour line, 4-aircraft longitudinal axial surface;5-mounting flange, 6-gas circuit switching assembly, 7-sensor assembly, 8-circuit module component, 9-housing assembly;10-switching plate assembly, 11-power board assembly, 12-CPU board assembly, 13-bracket, 14-electric connector. DETAILED DESCRIPTION

[0029] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model.Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without creative labor belong to the scope of the utility model protection.

[0030] The features and illustrative embodiments of each aspect of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application. The present application is not in any way limited to the specific arrangements and methods set forth below, but covers any modifications, equivalents, and alternatives falling within the spirit of the present application. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessary obscurity of the present application.

[0031] It should be noted that the features of the embodiments of the present application and the embodiments can be combined with each other without conflict, and each embodiment can be mutually referenced and quoted. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] The present application will be described in further detail below in combination with the embodiments and the accompanying drawings, but the implementation mode of the present application is not limited thereto.

[0033] The sensor symmetric architecture, a left and right L-shaped pressure sensor component solver structure design is proposed, the left and right symmetric external structure is adopted to ensure the compatibility with the interface on the machine, the uniform design is adopted to unify the left and right internal structure, so that the internal hardware PCB support, PCB board and other standardized unified type design are realized.

[0034] The specific technical scheme of the present application is as follows:

[0035] The solver is composed of a mounting flange, a gas path switching assembly, a sensor assembly, a circuit module assembly and a shell assembly, wherein the circuit module assembly is completely consistent in the left and right L-shaped pressure sensor, and the remaining structure is symmetrically designed.

[0036] The mounting flange can be customized according to the installation requirements of the aircraft skin.

[0037] The gas path switching assembly serves as an interface and switches the sensor pressure path to the sensor assembly, the number of pressure paths is determined according to the atmospheric data sensor pressure sensing function, and can be designed as 2 to 6 paths in general.

[0038] The sensor assembly integrates the air pressure sensor, converts the air pressure into a frequency quantity electric signal, and provides 3 discrete quantities as left and right position identification signals.

[0039] The circuit module assembly collects the air pressure frequency quantity electric signal and the left and right position identification signal, and calculates the flight atmospheric parameters through the atmospheric data algorithm.

[0040] The resolver shell structure adopts a cylindrical appearance design, can well match the special requirements of the aircraft skin special-shaped separation, adopts an integrated die casting forming technology, has good sealing performance, and the electrical connector interface is located at the bottom of the cylindrical shell and the central axis, which can be coordinated with the internal circuit module assembly interface.

[0041] Figure 1 It is an example installation attitude schematic view of the utility model, left L-shaped pressure sensor 1 and right L-shaped pressure sensor 2 are respectively installed on the left and right sides of the front part of the aircraft, and are conformal with the lower contour 3 of the front part of the aircraft, the installation attitude of the schematic view 1 and 2 is along the aircraft heading (inward along the paper surface), the cylindrical atmospheric data resolver is located in the part of the inside of the aircraft skin (on the upper side of the contour line in the figure), and the left and right resolver components are mirror-symmetric about the aircraft longitudinal axis surface 4.

[0042] Figure 2 It is an example structure exploded view of the utility model. The resolver is connected with the machine body through the mounting flange 5, and the connection of the sensor and the resolver component is realized, and the skin mounting flange can be customized according to the aircraft installation requirements. The mounting flange 5 and the resolver shell 9 interface are circular interfaces, and a circular structure connection is adopted, which can realize left and right same direction installation, the circular structure is beneficial to the skin hole of the aircraft, and the processing efficiency and positioning accuracy are improved. The air path switching assembly 6 realizes the pressure transmission from the sensor to the sensor; the number of air pressure paths is determined according to the air pressure sensing function of the atmospheric data sensor, and can be usually designed as 2 to 6 paths. The sensor assembly 7 converts the gas pressure sensed by the sensor into a frequency quantity electrical signal in a certain functional relationship with the gas pressure physical quantity. The circuit module assembly 8 collects the sensor frequency quantity electrical signal and calculates the atmospheric parameters. The resolver shell 9 adopts a cylindrical design, an integrated forming process, only has a circular interface with the mounting flange 5, and is designed to have a hole for the electrical connector 14, reduces the shell lap gap, improves the environmental adaptability of the resolver to electromagnetic, humidity, dust and the like, and the stability of the cylindrical structure is better than that of the cubic structure. Under the same structural strength requirement, the shell wall thickness can be effectively reduced, which is beneficial to lightweight design. The circular structure only needs to adjust the outer diameter and height size to realize functional expansion, which is beneficial to form a series and standardized design.

[0043] Figure 3 It is an example circuit module assembly structure diagram of the utility model. The circuit module assembly is the core component of the atmospheric data resolver, and the consistent design of this part in the left and right resolvers can greatly improve the standardization degree and reduce the design and production manufacturing cost. The overall structure of the circuit module assembly is supported by the bracket 13, the electrical connector 14 realizes that the resolver is connected with other devices through the aircraft cable, is fixed on the adapter plate as part of the adapter plate assembly 10, the power board assembly 11 converts the airborne power into the power required by each chip of the resolver, the CPU board assembly 12 completes the processing and calculation of the sensor signal, calculates the atmospheric parameters and interacts with the outside.

[0044] Figure 4 The main function of the hardware schematic diagram of the utility model example has been introduced in the structure description, need special explanation is, sensor assembly adopts difference design to distinguish left, right two sides, sensor arrangement has some difference, simultaneously sets up 3 groups of discrete quantity power supply circuit module assembly collection to realize position recognition, discrete quantity level positive power supply is high, ground is low. Circuit module assembly collection to high-high-low identification is left side solver, calculates according to left side atmospheric parameter;Circuit module assembly collection to high-low-high identification is right side calculator, calculates according to right side atmospheric parameter.

[0045] The above is only the specific embodiment of the utility model, and the utility model is described in detail, and the part not described in detail is the conventional technology. However, the protection scope of the utility model is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model. The protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A symmetrical airborne atmospheric data sensor system, comprising two airborne atmospheric data sensors mounted on the left and right sides of the nose section of an aircraft, characterized in that, Each sensor includes: a solver and a sensor; the solver includes: a mounting flange (5), an air circuit adapter assembly (6), a sensor assembly (7), a circuit module assembly (8), and a housing assembly (9); The profile of the mounting flange (5) is conformal to the fuselage skin of the carrier aircraft at the installation position and is fixed on the skin. The air circuit adapter assembly (6), sensor assembly (7), and circuit module assembly (8) are fixed on the mounting flange (5) from bottom to top. The housing assembly (9) is sleeved on the outside of the air circuit adapter assembly (6), sensor assembly (7), and circuit module assembly (8). The housing assembly (9) is cylindrical. The air path adapter (6) connects the sensor part to the internal closed air path of the sensor assembly (7); The sensor assembly (7) is connected to the circuit module assembly (8), and the sensor assembly (7) is provided with a hardware identification interface for the installation position of the airborne atmospheric data sensor; The circuit module assembly (8) and housing assembly (9) of the two sensors have the same structure.

2. The airborne atmospheric data sensor system with bilateral symmetry according to claim 1, characterized in that, The mounting flange (5) is connected to the cylindrical housing assembly (9) via a circular interface.

3. The airborne atmospheric data sensor system with bilateral symmetry according to claim 1, characterized in that, An electrical connector (14) is provided on the circuit module assembly (8); The cylindrical housing assembly (9) is made in one piece, and the top surface has an opening for the electrical connector (14) extending out.

4. The airborne atmospheric data sensor system with bilateral symmetry according to claim 1, characterized in that, The circuit module component (8) is used to receive the level signal provided by the hardware identification interface of the sensor component (7) to enable the solver to identify the installation positions on the left and right sides.

5. A symmetrical airborne atmospheric data sensor system according to claim 1, characterized in that, The circuit module assembly (8) includes: an adapter board assembly (10), a power board assembly (11), a CPU board assembly (12), and a bracket (13); The adapter board assembly (10), power board assembly (11) and CPU board assembly (12) are all circular and are arranged on the bracket (13) in order from top to bottom; The electrical connector (14) is connected to the adapter board assembly (10).

6. A bilaterally symmetrical airborne atmospheric data sensor system according to claim 5, characterized in that, The bracket (13) includes a base, a top plate, and a support plate; The base, top plate, and support plate are circular. The adapter board assembly (10), power board assembly (11), CPU board assembly (12) and support plate are disposed between the base and the top plate and are connected by through bolts; The top plate has a through hole through which the power supply connector (14) passes.

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