UAV airspeed meter component and UAV

Abstract

The embodiment of the present invention discloses an airspeed meter assembly for unmanned aerial vehicles and an unmanned aerial vehicle, which are applied to the technical field of unmanned aerial vehicles. The airspeed meter assembly for unmanned aerial vehicles includes a dynamic pressure pitot tube, a dynamic pressure pitot tube seat, a dynamic pressure connecting pipe and an airspeed meter. The dynamic pressure pitot tube seat includes a dynamic pressure pitot tube access port, a dynamic pressure tube interface and a drain port, all of which are communicated with the cavity of the dynamic pressure pitot tube seat. The dynamic pressure pitot tube access port is located outside the fuselage of the unmanned aerial vehicle. The dynamic pressure pitot tube is connected to the dynamic pressure pitot tube access port. The airflow inlet of the dynamic pressure pitot tube is located outside the fuselage of the unmanned aerial vehicle. The airspeed meter includes a dynamic pressure pipe port and a static pressure pipe port. The dynamic pressure connecting pipe connects the dynamic pressure pipe interface of the dynamic pressure pitot tube seat and the dynamic pressure pipe port of the airspeed meter. The airspeed meter assembly for unmanned aerial vehicles has only a dynamic pressure pipe, has a simple, safe and reliable structure, and is light in weight. It can effectively prevent water from entering the pitot tube and damaging the airspeed meter sensor, and the safety of the unmanned aerial vehicle is relatively high.

Description

Technical Field

[0001] The invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to an airspeed meter component for unmanned aerial vehicles and a unmanned aerial vehicle. Background Art

[0002] Most of the pitot tubes used in drones are dynamic pressure and static pressure pitot tubes, which are connected to the airspeed meter sensor at the same time, with no extra space in between. If water enters the pitot tube, it may block the airspeed meter sensor, or water droplets may enter the airspeed meter sensor and damage it, thereby affecting the function and life of the airspeed meter sensor and the flight safety of the drone. Summary of the invention

[0003] The invention provides a UAV airspeed meter component and a UAV, aiming to solve the problem of water ingress into the existing airspeed tube damaging the airspeed meter sensor by separating dynamic and static pressure and only arranging a dynamic pressure tube outside the fuselage.

[0004] An embodiment of the present invention provides an airspeed meter assembly for a drone, comprising:

[0005] Dynamic pressure pitot tube, dynamic pressure pitot tube seat, dynamic pressure connecting pipe and airspeed meter;

[0006] The dynamic pressure pitot tube seat comprises a dynamic pressure pitot tube access port, a dynamic pressure tube interface and a drain port. The dynamic pressure pitot tube seat has a cavity. The dynamic pressure pitot tube access port, the dynamic pressure tube interface and the drain port are all in communication with the cavity. The dynamic pressure pitot tube access port is located outside the fuselage of the UAV, and the dynamic pressure tube interface and the drain port are located inside the fuselage of the UAV.

[0007] The dynamic pressure pitot tube is connected to the dynamic pressure pitot tube access port, and the airflow inlet of the dynamic pressure pitot tube is located outside the fuselage of the UAV;

[0008] The airspeed meter includes a dynamic pressure nozzle and a static pressure nozzle;

[0009] The dynamic pressure connecting pipe connects the dynamic pressure pipe interface of the dynamic pressure pitot tube seat and the dynamic pressure pipe port of the airspeed meter.

[0010] Optionally, the airspeed meter includes: an airspeed meter box, an airspeed meter plate and an airspeed meter sensor;

[0011] The dynamic pressure pipe port and the static pressure pipe port are connected to the airspeed meter sensor;

[0012] The airspeed meter sensor is fixed on the airspeed meter plate;

[0013] The airspeed meter box encloses the airspeed meter sensor and the airspeed meter board.

[0014] Optionally, the drone airspeed meter assembly further includes: a water storage pipe;

[0015] The water storage pipe is arranged in the cavity of the dynamic pressure pitot tube seat, and one end of the water storage pipe opens at the tail end of the dynamic pressure pitot tube seat.

[0016] Optionally, the other end of the water storage pipe opens at the dynamic pressure pipe interface of the dynamic pressure pitot tube seat.

[0017] Optionally, a notch is provided at the intersection of the other end opening of the water storage pipe and the dynamic pressure pipe interface of the dynamic pressure pitot tube seat, and the notch accommodates the lower surface of the dynamic pressure pipe interface of the dynamic pressure pitot tube seat.

[0018] Optionally, the UAV airspeed meter assembly also includes: a drain plug; the drain plug is plugged into the drain port of the dynamic pressure airspeed tube seat.

[0019] Optionally, the UAV airspeed meter assembly also includes: foam; the foam is encapsulated in the static pressure nozzle of the airspeed meter plate.

[0020] Optionally, the dynamic pressure pitot tube seat is made of transparent material.

[0021] Optionally, if the UAV airspeed meter assembly further includes a static pressure pitot tube located outside the fuselage of the UAV, the UAV airspeed meter assembly further includes a static pressure air pipe seat; the static pressure air pipe seat includes a static pressure pitot tube access port, a static pressure pipe interface and a drain port.

[0022] An embodiment of the present invention further provides a drone having the drone airspeed meter assembly as described above.

[0023] It can be seen from the above embodiments of the present invention that the dynamic pressure pitot tube, the dynamic pressure pitot tube seat, the dynamic pressure connecting pipe and the airspeed meter, the dynamic pressure pitot tube seat includes a dynamic pressure pitot tube access port, a dynamic pressure tube interface and a drain port, the dynamic pressure pitot tube seat has a cavity, the dynamic pressure pitot tube access port, the dynamic pressure tube interface and the drain port are all in communication with the cavity, the dynamic pressure pitot tube access port is located outside the fuselage of the drone, the dynamic pressure tube interface and the drain port are located inside the fuselage of the drone, the dynamic pressure pitot tube is connected to the dynamic pressure pitot tube access port, and the airflow inlet of the dynamic pressure pitot tube is located outside the fuselage of the drone, The airspeed meter includes a dynamic pressure pipe port and a static pressure pipe port. The dynamic pressure connecting pipe connects the dynamic pressure pipe interface of the dynamic pressure airspeed tube seat and the dynamic pressure pipe port of the airspeed meter. Only the airflow entering through the dynamic pressure airspeed tube is passed, and the static pressure test is carried out inside the fuselage. This can simplify the structure of the UAV airspeed meter assembly, reduce its weight, and reduce costs. In addition, the accumulated water generated by the UAV during flight flows into the water storage pipe along the cavity of the dynamic pressure airspeed tube seat and can flow out or be discharged from the drain port, thereby preventing the accumulated water from affecting the performance of the airspeed meter and further improving the safety of the UAV flight. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0025] Figure 1 An exploded view of an airspeed meter assembly for a drone provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the assembly of an airspeed meter assembly for a drone provided by an embodiment of the present invention;

[0027] Figure 3 A perspective view of an airspeed meter assembly for a drone provided by an embodiment of the present invention;

[0028] Figure 4 A front view of an airspeed meter assembly for a drone provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 4 , Figure 1 An exploded view of an airspeed meter assembly for a drone provided by an embodiment of the present invention; Figure 2 A schematic diagram of the assembly of an airspeed meter assembly for a drone provided by an embodiment of the present invention; Figure 3 A perspective view of an airspeed meter assembly for a drone provided by an embodiment of the present invention; Figure 4 A front view of an airspeed meter assembly for a drone provided in an embodiment of the present invention.

[0031] The UAV airspeed meter assembly includes: a dynamic pressure airspeed tube 10, a dynamic pressure airspeed tube seat 20, a dynamic pressure connecting pipe 30 and an airspeed meter 40;

[0032] The dynamic pressure pitot tube seat 20 includes a dynamic pressure pitot tube access port 21, a dynamic pressure tube interface 22 and a drain port 23. The dynamic pressure pitot tube seat 20 has a cavity 100. The dynamic pressure pitot tube access port 21, the dynamic pressure tube interface 22 and the drain port 23 are all in communication with the cavity 100. The dynamic pressure pitot tube access port 21 is located outside the fuselage of the UAV, and the dynamic pressure tube interface 22 and the drain port 23 are located inside the fuselage of the UAV.

[0033] Furthermore, the dynamic pressure pitot tube 10 is connected to the dynamic pressure pitot tube access port 21, and the airflow inlet of the dynamic pressure pitot tube 10 is located outside the fuselage of the UAV. Specifically, one end of the dynamic pressure pitot tube 10 is connected to the dynamic pressure pitot tube access port 21, and the other end is provided with an opening, which is the airflow inlet. The two ends of the dynamic pressure pitot tube 10 are an empty tube structure, and the airflow can enter the dynamic pressure pitot tube access port 21 from the airflow inlet, thereby entering the cavity 100 and flowing in the direction of the dynamic pressure tube interface 22 and the drain port 23.

[0034] The airspeed meter 40 includes a dynamic pressure nozzle 41 and a static pressure nozzle 42. Specifically, the airspeed meter 40 includes an airspeed meter box 50, an airspeed meter plate 60 and an airspeed meter sensor, wherein the airspeed meter sensor is fixed and packaged in the airspeed meter plate 60, which is not shown in the figure. The dynamic pressure nozzle 41 and the static pressure nozzle 42 are connected to the airspeed meter sensor; the airspeed meter box 50 is packaged outside the airspeed meter plate 60 and the airspeed meter sensor. Furthermore, the drone airspeed meter assembly also includes foam 70, which is packaged in the static pressure nozzle 42 of the airspeed meter 40. The foam 70 is an open-pore foam, and its main function is ventilation and reducing the influence of wind fluctuations on static pressure measurement.

[0035] The airspeed meter 40 , the dynamic pressure pipe port 41 and the static pressure pipe port 42 are all in the fuselage. The dynamic pressure connecting pipe 30 connects the dynamic pressure pipe interface 22 of the dynamic pressure and pitot tube seat 20 and the dynamic pressure pipe port 41 of the airspeed meter 40 .

[0036] When the UAV is flying, the external airflow of the UAV increases with the flight speed, and the external air pressure enters the dynamic pressure pitot tube seat 20 from the other end of the dynamic pressure pitot tube 10, and is transmitted to the airspeed meter 40 from the cavity 100 of the dynamic pressure pitot tube seat 20 through the dynamic pressure connecting pipe 30, while the static pressure is measured inside the fuselage. The inside of the fuselage is connected to the outside, and the air pressure measured inside the fuselage will change with the altitude of the aircraft. The static pressure pipe port 42 of the airspeed meter 40 can measure the air pressure value at the altitude of the UAV. The airspeed meter sensor can calculate the speed of the UAV relative to the air at that time by calculating the difference between the dynamic pressure and the static pressure.

[0037] Furthermore, the drone airspeed meter assembly also includes a water storage pipe 80, which is disposed in the cavity 100 of the dynamic pressure pitot tube seat 20, and one end of the water storage pipe 80 opens at the tail end of the dynamic pressure pitot tube seat 20. Specifically, the other end of the water storage pipe 80 opens at the dynamic pressure pipe interface 22 of the dynamic pressure pitot tube seat 20. Furthermore, a notch 81 is provided at the intersection of the other end opening of the water storage pipe 80 and the dynamic pressure pipe interface 22 of the dynamic pressure pitot tube seat 20, and the notch 81 accommodates the lower surface of the dynamic pressure pipe interface 22 of the dynamic pressure pitot tube seat 20, and the lower surface is a curved surface.

[0038] Furthermore, the UAV airspeed meter assembly also includes a drain plug 90 , which is plugged into the drain port 23 of the dynamic pressure airspeed tube seat 20 .

[0039] When the drone encounters rain or is exposed to alternating hot and cold air during flight, water accumulates. The accumulated water flows into the water storage pipe 80 along the cavity 100 of the dynamic pressure pitot tube seat 20 and flows out from the drain port 23. If a drain plug 90 is provided here, the accumulated water is stored in the water storage pipe 80.

[0040] In order to facilitate the user to observe the accumulated water stored in the dynamic pressure pitot tube seat 20, the dynamic pressure pitot tube seat 20 is made of transparent material. If a lot of accumulated water is observed, the user can pull out the drain plug 80 to drain the accumulated water, thereby realizing the waterproof function of the drone airspeed meter assembly.

[0041] The unmanned aerial vehicle airspeed meter assembly provided by the embodiment of the present invention comprises a dynamic pressure airspeed tube, a dynamic pressure airspeed tube seat, a dynamic pressure connecting pipe and an airspeed meter, the dynamic pressure airspeed tube seat comprises a dynamic pressure airspeed tube access port, a dynamic pressure tube interface and a drain port, the dynamic pressure airspeed tube seat has a cavity, the dynamic pressure airspeed tube access port, the dynamic pressure tube interface and the drain port are all in communication with the cavity, the dynamic pressure airspeed tube access port is located outside the fuselage of the unmanned aerial vehicle, the dynamic pressure tube interface and the drain port are located inside the fuselage of the unmanned aerial vehicle, the dynamic pressure airspeed tube is connected to the dynamic pressure airspeed tube access port, and the airflow of the dynamic pressure airspeed tube The inlet is located outside the fuselage of the UAV, and the airspeed meter includes a dynamic pressure pipe port and a static pressure pipe port. The dynamic pressure connecting pipe connects the dynamic pressure pipe interface of the dynamic pressure airspeed tube seat and the dynamic pressure pipe port of the airspeed meter. Only the airflow entering through the dynamic pressure airspeed tube is passed, and the static pressure test is conducted inside the fuselage. This can simplify the structure of the UAV airspeed meter assembly, reduce its weight, and reduce costs. In addition, the accumulated water generated by the UAV during flight flows into the water storage pipe along the cavity of the dynamic pressure airspeed tube seat, and can flow out or be discharged from the drain port to prevent the accumulated water from affecting the performance of the airspeed meter.

[0042] Furthermore, when the UAV has both a dynamic pressure pitot tube and a static pressure pitot tube, and both the dynamic pressure pitot tube and the static pressure pitot tube are outside the fuselage, the UAV airspeed meter assembly also includes a static pressure air pipe seat, and the static pressure air pipe seat has the same structure as the above-mentioned dynamic pressure air pipe seat, that is, it includes a static pressure pitot tube access port, a static pressure pipe interface and a drain port. Correspondingly, the UAV airspeed meter assembly does not include foam 70. For the specific structure, please refer to the above description. That is, when the UAV has both a dynamic pressure pitot tube and a static pressure pitot tube, and both the dynamic pressure pitot tube and the static pressure pitot tube are outside the fuselage, the above-mentioned two dynamic pressure pitot tube seats can be provided for the dynamic pressure pitot tube and the static pressure pitot tube respectively to achieve storage of accumulated water and drainage, which is easy to modify and low in cost.

[0043] An embodiment of the present invention further provides a drone having the above-mentioned drone airspeed meter assembly. The specific structure of the drone airspeed meter assembly is shown in the above description.

[0044] The drone provided by the embodiment of the present invention has a structure that can simplify the drone airspeed meter assembly, reduce its weight, and reduce costs, because the drone airspeed meter assembly only passes the airflow entering through the dynamic pressure pitot tube, and the static pressure test is placed inside the fuselage. In addition, the accumulated water generated by the drone during flight flows into the water storage pipe along the cavity of the dynamic pressure pitot tube seat, and can flow out or be discharged from the drain port, thereby preventing the accumulated water from affecting the performance of the airspeed meter and improving the safety of the drone flight.

[0045] The above is a description of the drone airspeed meter assembly and the drone provided by the present invention. For those skilled in the art, according to the ideas of the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A drone airspeed meter assembly, used for a drone, characterized in that: include: Dynamic pressure pitot tube, dynamic pressure pitot tube seat, dynamic pressure connecting pipe and airspeed meter; The dynamic pressure pitot tube seat comprises a dynamic pressure pitot tube access port, a dynamic pressure tube interface and a drain port. The dynamic pressure pitot tube seat has a cavity. The dynamic pressure pitot tube access port, the dynamic pressure tube interface and the drain port are all in communication with the cavity. The dynamic pressure pitot tube access port is located outside the fuselage of the UAV, and the dynamic pressure tube interface and the drain port are located inside the fuselage of the UAV. The dynamic pressure pitot tube is connected to the dynamic pressure pitot tube access port, and the airflow inlet of the dynamic pressure pitot tube is located outside the fuselage of the UAV; The airspeed meter includes a dynamic pressure nozzle and a static pressure nozzle; the airspeed meter, the dynamic pressure nozzle and the static pressure nozzle are all inside the fuselage; The dynamic pressure connecting pipe connects the dynamic pressure pipe interface of the dynamic pressure pitot tube seat and the dynamic pressure pipe port of the airspeed meter; the UAV airspeed meter assembly also includes: a water storage pipe; the water storage pipe is arranged in the cavity of the dynamic pressure pitot tube seat, one end of the water storage pipe opens at the tail end of the dynamic pressure pitot tube seat; the other end of the water storage pipe opens at the dynamic pressure pipe interface of the dynamic pressure pitot tube seat; a notch is arranged at the intersection of the other end opening of the water storage pipe and the dynamic pressure pipe interface of the dynamic pressure pitot tube seat, and the notch accommodates the lower surface of the dynamic pressure pipe interface of the dynamic pressure pitot tube seat.

2. The UAV airspeed meter assembly according to claim 1, characterized in that: The airspeed meter comprises: an airspeed meter box, an airspeed meter plate and an airspeed meter sensor; The dynamic pressure pipe port and the static pressure pipe port are connected to the airspeed meter sensor; The airspeed meter sensor is fixed on the airspeed meter plate; The airspeed meter box encloses the airspeed meter sensor and the airspeed meter board.

3. The UAV airspeed meter assembly according to claim 1, characterized in that: The drone airspeed meter assembly also includes: a drain plug; The drain plug is plugged into the drain port of the dynamic pressure pitot tube seat.

4. The UAV airspeed meter assembly according to claim 2, characterized in that: The drone airspeed meter assembly also includes: foam; The foam is encapsulated in the static pressure nozzle of the airspeed meter plate.

5. The UAV airspeed meter assembly according to claim 4, characterized in that: The dynamic pressure pitot tube seat is made of transparent material.

6. The UAV airspeed meter assembly according to claim 5, characterized in that: If the drone airspeed meter assembly further includes a static pressure airspeed tube located outside the fuselage of the drone, the drone airspeed meter assembly further includes a static pressure air tube seat; The static pressure air pipe seat comprises a static pressure pitot tube access port, a static pressure pipe interface and a drain port.

7. A drone, characterized in that: A drone airspeed meter assembly as claimed in any one of claims 1 to 6.

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