Reliable rainwater collecting and water removing device for aircraft sensor

Abstract

The utility model discloses a reliable rainwater collection and water removal device for an aircraft sensor, which relates to the technical field of air pressure measurement of aircraft sensors and comprises a water collection shell communicated with a vent hole, a plate-fin structure arranged in the water collection shell, a plurality of water collection holes arranged on the plate-fin structure and a heating mechanism for heating the plate-fin structure. The device is reasonable in design, in the flying process of the aircraft, rainwater enters the water collection shell through the vent holes and falls into the plate-fin structures under the influence of gravity, the dense plate-fin structures are provided with the water collection holes, and the rainwater entering the plate-fin structures is reliably adsorbed into the plate-fin structures and the water collection holes under the influence of the plate-fin structures and the water collection holes, so that the rainwater is prevented from falling into the plate-fin structures. And when the aircraft is subjected to attitude control or maneuvering flight, the adsorbed rainwater can be ensured not to flow in the water collecting shell. After the flight is completed, the heating mechanism on the plate-fin structure is heated through the heating control circuit, heat is generated for the plate-fin structure, the adsorbed rainwater is driven to evaporate rapidly, and rapid water removal is achieved.

Description

Technical Field

[0001] This utility model relates to the field of air pressure measurement technology for aircraft sensors, and more specifically to the field of a reliable rainwater collection and dewatering device for aircraft sensors. Background Technology

[0002] During aircraft flight in rainy weather, the externally mounted barometric pressure sensor's measuring port can become clogged with rainwater, affecting the sensor's pressure measurement. To protect the sensor from rain interference, a rain collection trough is often designed. This is achieved by adding a rain collection shell to the outside of the sensor, preventing the sensor from directly contacting the outside. When rainwater enters through the openings in the rain collection shell, gravity causes the water to settle at the bottom of the trough, thus preventing rainwater from entering the sensor's measuring port. Common rain collection devices have the following problems:

[0003] 1. Rainwater collection is carried out using gravity. When the aircraft is maneuvering, the rainwater stored at the bottom of the rainwater collection tank will flow in the rainwater collection tank due to the aircraft's movements and attitude, which may block the sensor measurement holes.

[0004] 2. Water that enters the rainwater collection trough can only be removed by disassembling the rainwater collection shell and emptying it or by waiting for it to air dry naturally, making it difficult to remove water quickly. Utility Model Content

[0005] The purpose of this utility model is to provide a reliable rainwater collection and removal device for aircraft sensors in order to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] This utility model provides a reliable rainwater collection and removal device for aircraft sensors, including a water collection shell communicating with a vent, a plate-fin structure disposed within the water collection shell, a plurality of water collection holes disposed on the plate-fin structure, and a heating mechanism for heating the plate-fin structure.

[0008] Specifically, during flight, rainwater enters the water-collecting shell through the vents and falls into the finned structure under gravity. The densely packed finned structure has water-collecting holes. The rainwater entering the finned structure is reliably absorbed by the structure and these holes, ensuring that the absorbed rainwater does not flow within the water-collecting shell during attitude control or maneuvering. After flight, the heating control circuit heats the finned structure, causing the absorbed rainwater to evaporate rapidly, achieving rapid water removal.

[0009] Before flight, the heating control circuit heats up the fin structure to ensure that there is no residual rainwater inside the structure. During flight, rainwater flows into the water collection shell through the vents to achieve reliable adsorption of rainwater. After flight, the heating control circuit heats up the fin structure to achieve rapid water removal.

[0010] In one embodiment, a plurality of mounting ears are provided on the side wall of the water collection shell, and each mounting ear is provided with a mounting hole; a rain collection groove is provided inside the water collection shell, the vent is connected to one end of the rain collection groove, and the plate fin structure is installed on the other side of the rain collection groove.

[0011] In one embodiment, the rainwater collection trough is a square trough with the opening facing upwards, and the plate fin structure includes multiple fins arranged side by side along the length direction, with a number of water collection holes distributed on the multiple fins.

[0012] Specifically, the fins have perforations on their surface, which utilize the viscosity of the liquid to enhance the adhesion of rainwater; the fin structure achieves a large-area heating effect and plays a role in rapid water removal.

[0013] In one embodiment, each fin has multiple water collection holes arranged in a rectangular array.

[0014] In one embodiment, a sealing groove is provided around the top edge of the rainwater collection trough, and a sealing plate is provided on the sealing groove to achieve a seal by adding a rubber gasket.

[0015] In one embodiment, the heating mechanism includes heating resistance wires embedded in each fin and a heating control circuit connected to the heating resistance wires.

[0016] In one embodiment, the depth of the rainwater collection trough is 12mm-15mm, the length of the rainwater collection trough is 70mm-75mm, and the width of the rainwater collection trough is 27.5mm-30mm.

[0017] In one embodiment, the number of fins is 18.

[0018] In one embodiment, each fin has a length of 40mm-45mm, a width of 11mm-13mm, a thickness of 1mm-1.5mm, and a fin spacing of 0.5mm-0.6mm.

[0019] In one embodiment, the diameter of the water collection hole is 1.5mm-1.6mm.

[0020] The beneficial effects of this utility model are as follows:

[0021] This invention features a rational design that utilizes the surface tension and viscosity of liquids. The rain collection trough incorporates a dense plate-fin electrothermal structure. During flight, rainwater entering the trough is affected by liquid surface tension, creating a capillary effect between the plate-fin structures. The plate-fin structure holds the rainwater within the fins, effectively preventing rainwater from flowing within the trough due to the aircraft's movements and attitude. Simultaneously, the aircraft can supply electricity to the plate-fin structure, causing it to heat up and achieving rapid drainage of rainwater from the trough. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a magnified view of a portion of the plate-fin structure;

[0025] Figure 3 yes Figure 1 A side view;

[0026] Reference numerals: 1-Water collection shell, 2-Plate fin structure, 3-Ventilation hole, 4-Water collection hole, 5-Sealing groove, 6-Heating control circuit. Detailed Implementation

[0027] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Example 1

[0032] like Figures 1 to 3 As shown, this embodiment provides a reliable rainwater collection and removal device for aircraft sensors, including a water collection shell 1 connected to a vent 3, a plate-fin structure 2 disposed inside the water collection shell 1, a plurality of water collection holes 4 disposed on the plate-fin structure 2, and a heating mechanism for heating the plate-fin structure 2.

[0033] Specifically, during flight, rainwater enters the water collection shell 1 through the vent 3 and falls into the finned structure 2 under the influence of gravity. The densely packed finned structure 2 has water collection holes 4. The rainwater entering the finned structure 2 is reliably adsorbed into the finned structure 2 and water collection holes 4 by the influence of the finned structure 2 and water collection holes 4. During attitude control or maneuvering flight, this ensures that the adsorbed rainwater does not flow within the water collection shell 1. After flight, the heating control circuit 6 heats the heating mechanism on the finned structure 2, generating heat that causes the adsorbed rainwater to evaporate rapidly, achieving rapid water removal.

[0034] Before flight, the heating control circuit 6 heats up the plate-fin structure 2 to ensure that there is no residual rainwater inside the structure. During flight, rainwater flows into the water collection shell 1 through the vent 3 to achieve reliable adsorption of rainwater. After flight, the heating control circuit 6 heats up the plate-fin structure 2 to achieve rapid water removal.

[0035] Example 2

[0036] like Figures 1 to 3 As shown, this embodiment provides a reliable rainwater collection and removal device for aircraft sensors, including a water collection shell 1 connected to a vent 3, a plate-fin structure 2 disposed inside the water collection shell 1, a plurality of water collection holes 4 disposed on the plate-fin structure 2, and a heating mechanism for heating the plate-fin structure 2.

[0037] The side wall of the water collection shell 1 is provided with several mounting ears, and each mounting ear is provided with a mounting hole; the inside of the water collection shell 1 is provided with a rain collection groove, the vent 3 is connected to one end of the rain collection groove, and the plate fin structure 2 is installed on the other side of the rain collection groove.

[0038] The rainwater collection trough is a square trough with the opening facing upwards. The plate fin structure 2 includes multiple fins arranged side by side along the length direction, and several water collection holes 4 are distributed on the multiple fins.

[0039] Specifically, the fins have perforations on their surface, which utilize the viscosity of the liquid to enhance the adhesion of rainwater; the fin structure 2 achieves a large-area heating effect and plays a role in rapid water removal.

[0040] Example 3

[0041] This embodiment is a further optimization based on embodiment 2, specifically:

[0042] Each fin has multiple water collection holes arranged in a rectangular array 4.

[0043] A sealing groove 5 is provided around the top edge of the rainwater collection trough, and a sealing plate is provided on the sealing groove 5 to achieve a seal by adding a rubber gasket.

[0044] The heating mechanism includes heating resistance wires embedded in each fin and a heating control circuit 6 connected to the heating resistance wires.

[0045] The depth of the rainwater collection trough is 12mm-15mm, the length of the rainwater collection trough is 70mm-75mm, and the width of the rainwater collection trough is 27.5mm-30mm.

[0046] The number of fins is 18.

[0047] Each fin has a length of 40mm-45mm, a width of 11mm-13mm, a thickness of 1mm-1.5mm, and a fin spacing of 0.5mm-0.6mm.

[0048] The diameter of water collection hole 4 is 1.5mm-1.6mm.

[0049] Example 4

[0050] This embodiment is a further optimization based on embodiment 3, specifically:

[0051] In this example, the water collection housing 1 is conformally designed according to the shape of the barometric pressure sensor. The rainwater collection groove inside the housing is 12mm deep, 70mm long, and 27.5mm wide, and is sealed by adding a rubber gasket inside the sealing groove 5. The dense-level fin structure 2 has a total of 18 fins, each fin is 40mm long, 11mm wide, and 1mm thick, with a fin spacing of 0.5mm. Water collection holes 4 are opened on the fins, and the diameter of the water collection holes 4 is 1.5mm.

[0052] According to formula (1), in this example, the motor overload is recorded as 2g, the structural adsorption efficiency is taken as 0.37, and the total effective adsorption volume of the rainwater in the rainwater collection trough is 3.98cm3, with an equivalent weight of 3.98g.

[0053] V Y =(V J -V C )×N×η; (1)

[0054] In the formula: V Y Indicates the volume of rainwater reliably adsorbed;

[0055] V J This indicates the total volume of the plate-fin structure 2;

[0056] V C This indicates the volume occupied by the metal in the plate-fin structure 2;

[0057] N indicates the aircraft's maneuver overload;

[0058] η represents the structural adsorption coefficient, which is obtained through testing.

[0059] A rain test was conducted using the rain collection shell at a rainfall rate of 1.7 mm / min for 1 hour. Comparing the equipment weight before and after the test, a weight increase of 0.7 g was observed. Based on the calculated reliable rainwater absorption weight of 3.98 g, this rain collection structure can reliably absorb rainwater for at least 5.7 hours of flight time. Further testing showed that with a saturated water absorption of 5.39 g, powering the plate-fin electrothermal structure using heating control circuit 6 resulted in the evaporation of all absorbed water within 30 minutes.

Claims

1. A reliable rainwater collection and removal device for aircraft sensors, characterized in that, It includes a water collection shell (1) connected to the vent (3), a plate-fin structure (2) disposed inside the water collection shell (1), a plurality of water collection holes (4) disposed on the plate-fin structure (2), and a heating mechanism for heating the plate-fin structure (2).

2. The reliable rainwater collection and removal device for aircraft sensors according to claim 1, characterized in that, The water collection shell (1) has several mounting ears on its side wall, and each mounting ear has a mounting hole; the water collection shell (1) has a rain collection groove inside, the vent (3) is connected to one end of the rain collection groove, and the plate fin structure (2) is installed on the other side of the rain collection groove.

3. The reliable rainwater collection and removal device for aircraft sensors according to claim 2, characterized in that, The rain collection trough is a square trough with the opening facing upwards. The plate fin structure (2) includes multiple fins arranged side by side along the length direction, and a number of water collection holes (4) are distributed on the multiple fins.

4. The reliable rainwater collection and removal device for aircraft sensors according to claim 3, characterized in that, Each of the fins has multiple water collection holes arranged in a rectangular array (4).

5. A reliable rainwater collection and removal device for aircraft sensors according to claim 3, characterized in that, A sealing groove (5) is provided on the top edge of the rainwater collection trough, and a sealing plate is provided on the sealing groove (5) to achieve sealing by adding a rubber gasket.

6. A reliable rainwater collection and removal device for aircraft sensors according to claim 3, characterized in that, The heating mechanism includes heating resistance wires embedded in each of the fins and a heating control circuit (6) connected to the heating resistance wires.

7. A reliable rainwater collection and removal device for aircraft sensors according to claim 3, characterized in that, The depth of the rain collection trough is 12mm-15mm, the length of the rain collection trough is 70mm-75mm, and the width of the rain collection trough is 27.5mm-30mm.

8. A reliable rainwater collection and removal device for aircraft sensors according to claim 3, characterized in that, The number of fins is 18.

9. A reliable rainwater collection and removal device for aircraft sensors according to claim 8, characterized in that, Each of the aforementioned fins has a length of 40mm-45mm, a width of 11mm-13mm, a thickness of 1mm-1.5mm, and a fin spacing of 0.5mm-0.6mm.

10. A reliable rainwater collection and removal device for aircraft sensors according to claim 9, characterized in that, The diameter of the water collection hole (4) is 1.5mm-1.6mm.

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