KR102169485B1 - Drone with protection - Google Patents

Abstract

The present invention is a drone body; A cage accommodating the drone body and having a plurality of openings therein; A rotation support portion coupled to the drone body and rotatably connected to the inside of the cage; And a rotation guide part connecting the cage and the rotation support part and guiding the rotation of the rotation support part. It discloses a drone having a protective function comprising a.

Description

Drone with protection

The present invention relates to a drone having a protective function.

A drone is an unmanned aerial vehicle capable of remote control and automatic flight, and is basically manufactured in the shape of an airplane or helicopter.

Drones that obtain lift and propulsion by rotating a rotor like a helicopter are classified into a quadcopter with four rotors, a hexacopter with six, and an octocopter with eight, and are collectively referred to as a multicopter.

Since the multicopter-type drone has a large number of rotors and is manufactured to have a relatively high output corresponding to the number of rotors, it has the advantage of being able to perform stable hovering even if the aircraft is heavy and capable of utilizing various flight motions. In recent years, such a multicopter type drone is widely used for general leisure use.

However, drones can cause damage by colliding with people or facilities during flight. In particular, a rotor rotating at high speed can cause injury to people due to the nature of being exposed to the air, and the wings are damaged by external impact. There is a vulnerability that could lead to a fall.

The present invention relates to a drone having a protective function capable of preventing an impact applied during flight or landing through a protection means disposed outside the drone.

In addition, the present invention relates to a drone having a protective function capable of rotating the X-axis, Y-axis, and Z-axis as a rotation axis separately from the protection means, so that the flight of the drone is not disturbed by the protection means.

Meanwhile, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be understandable.

A drone having a protective function according to the present invention includes a drone body; A cage accommodating the drone body and having a plurality of openings therein; A rotation support portion coupled to the drone body and rotatably connected to the inside of the cage; And a rotation guide part connecting the cage and the rotation support part and guiding the rotation of the rotation support part. Includes.

The rotation support unit includes a rotation rod; A fastening member for fastening the drone body to the rotating rod; And a disk-shaped or spherical rolling member disposed along both ends of the rotation rod and inserted into the rotation guide. It may include.

A circular rail disposed inside the cage and surrounding the rolling member; And a bearing member disposed between the circular rail and the rolling member. It may include.

The bearing member may be a ball bearing or a magnetic bearing.

The thickness of the rolling member may be larger than that of the rotating rod.

The rotation rod may rotate each of the X axis and the Z axis as a rotation axis.

The fastening member may include a first fastening member disposed on the rotating rod; A second fastening member fastened to the drone body; And a hinge member connecting the first fastening member and the second fastening member. It may include.

The rotation rod may rotate each of the X-axis and Z-axis as a rotation axis, and the first fastening member and the second fastening member may be tilted mutually on the Y-axis as a rotation axis.

The cage is a sphere made of a plurality of circular frames, accommodates the cage therein, and an outer cage for guiding the rotation of the cage; It further includes, wherein the outer cage includes an outer circular rail surrounding at least one circular frame of the cage; And an outer bearing member disposed between the outer circular rail and the circular frame. It may include.

The rotating rod rotates each of the X-axis and Z-axis as a rotation axis,

The cage and the outer cage may be rotated or tilted along the Y axis as a rotation axis.

The bearing member may be a ball bearing or a magnetic bearing, and the outer bearing member may be a ball bearing or a magnetic bearing.

A drone having a protection function according to the present invention can prevent an impact applied during flight or landing through a protection means disposed outside the drone.

In addition, the drone having a protective function according to the present invention can rotate the X-axis, Y-axis, and Z-axis separately from the protection means, so that the flight of the drone is not disturbed by the protection means.

On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. I will be able to.

1 is a perspective view showing a drone having a protection function according to an embodiment of the present invention,
2 is a perspective view showing a drone body in a drone having a protection function according to an embodiment of the present invention,
3 is a cross-sectional view taken along line A-A' of FIG. 1,
4 is a cross-sectional view taken along line B-B' of FIG. 1,
5 is a perspective view showing a drone having a protection function according to another embodiment of the present invention,
6 is an exemplary view showing a state change of the drone having a protection function of FIG. 5,
7 is a perspective view showing a drone having a protection function according to another embodiment of the present invention,
8 is an exemplary diagram showing a state change of the drone having a protection function of FIG. 7,
9 is a cross-sectional view taken along line C-C' of FIG. 7.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are provided to more completely describe the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows. It is not limited to the examples. Rather, these embodiments are provided to make the present disclosure more faithful and complete, and to completely convey the spirit of the present invention to those skilled in the art.

In addition, each component in the following drawings is exaggerated for convenience and clarity of description, and the same reference numerals refer to the same elements in the drawings. As used herein, the term “and/or” includes any and all combinations of one or more of the corresponding listed items.

The terms used in this specification are used to describe specific embodiments, and are not intended to limit the present invention.

As used herein, the singular form may include the plural form unless the context clearly indicates another case. Further, as used herein, "comprise" and/or "comprising" specifies the presence of the mentioned shapes, numbers, steps, actions, members, elements and/or groups thereof. And does not exclude the presence or addition of one or more other shapes, numbers, actions, members, elements, and/or groups.

1 is a perspective view showing a drone having a protection function according to an embodiment of the present invention, FIG. 4 is a perspective view showing a drone body in a drone having a protection function according to an embodiment of the present invention, and FIG. 3 is FIG. Is a cross-sectional view taken along line A-A', and FIG. 4 is a cross-sectional view taken along line B-B' of FIG. 1.

1 to 4, a drone having a protective function according to an embodiment of the present invention may include a drone body 10, a cage 100, a rotation support part 200, and a rotation guide part 300. have.

The drone body 10 may include a body part 11, a floating part 12, and a sensor part 13.

The body portion 11 may be formed of metal or reinforced plastic to withstand high temperature and impact. When the body 11 is formed of metal, in order to reduce the total weight of the drone body 10, aluminum alloy, titanium, or the like may be used. Reinforced plastics are plastics manufactured by impregnating resins with glass fibers or carbon fibers as reinforcing materials, and their mechanical strength is remarkably stronger than that of general plastics, and they are lighter and more resistant to heat, and have excellent wear resistance and corrosion resistance.

On the other hand, the drone body 10 includes various sensors such as a processor for flight control and a geomagnetic sensor, an acceleration sensor, a gyro sensor, an atmospheric pressure sensor, and a GPS (Global Positioning System) receiver. Rotational motion, translational motion, etc.) and leveling during flight.

The drone body 10 is provided with an arm extending radially, for example, from the center of the body. In addition, a floating portion 12 is installed at the end of each arm.

The floating portion 12 rotates on the body portion 11 to generate buoyancy and floats the body portion 11.

The floating part 12 may include a drive motor and a rotor installed on a rotation shaft of each drive motor.

The rotors are disposed around the drone body 10 at predetermined intervals. Although the drawing shows a drone in the form of a quadcopter having four rotors, the present invention is not limited thereto, and of course, it can be applied to a variety of multicopters, such as a six-rotor hexacopter and an eight-rotor octocopter. .

The sensor unit 13 may be installed outside the drone body 10, and includes various control devices and communication devices, optical devices, sensors, GPS, etc. for performing remote control and unmanned automatic flight. can do.

The cage 100 may accommodate the drone body 10, the rotation support part 200, and the rotation guide part 300 therein.

The cage 100 is a spherical body formed by repeatedly arranging the circular frame 110 in series, and has a plurality of openings 120 so as not to interfere with the sensing operation of the sensor unit 13 of the drone body 10. It is desirable to do.

The circular frame 110 is made of any one of a foam, an elastic body, or a tube body filled with air to protect the drone body 10 located inside in case of a collision, preferably inside It is preferable that the drone body 10 located in the drone body 10 is made of a lightweight material so as not to interfere with the flight, but is made of a foam that can be used as a disposable part for a guard that is rigid and can only be replaced due to frequent collisions.

At this time, the foam is a material mixed with a polypropylene, polyether, or polyurethane-based polyol, a catalyst to improve the reaction speed or moldability, and a foaming agent and other additives, inserted into the mold, and then cured. It is possible to buffer by maintaining a predetermined elastic force while having. At this time, a silicone foaming agent for dispersion of foaming gas or stabilization of the cell membrane may be injected into the mold. In some embodiments, a release agent may be injected so as not to damage the outer surface of the foam during demolding.

For reference, in the present invention, EPP (Expanded PolyPropylene) foam which has high mechanical strength, elastic modulus, and flexibility while being easy to reduce weight is preferable.

Here, the plurality of circular frames 110 are in close contact with each other and fixed through a fixing means, thereby forming a spherical cage 100.

The rotation support 200 may be connected to the inside of the cage 100 so that the drone body 10 is rotatable.

The rotation support part 200 may include a rotation rod 210, a fastening member 220, and a rolling member 230.

The rotating rod 210 may substantially serve as a connection rod connecting the drone body 10 and the cage 100.

Here, the rotation rod 210 may be rotated using the X-axis and Z-axis as rotational axes through the rotation guide part 300.

The fastening member 220 may protrude upward from an approximate center of the rotation rod 210 to fasten the drone body 10 to the rotation rod 210.

The rolling member 230 is disposed at both ends of the rotation rod 210, has a disk shape or a sphere shape, and may be inserted into the rotation guide part 300.

The rolling member 230 may rotate along the rotation guide unit 300 in the X-axis and the Z-axis, and may rotate the connected rotation rod 210.

Here, it is preferable that the rolling member 230 has a larger thickness (diameter) than the thickness of the rotating rod 210, and through this, it is possible to prevent the rolling member 230 from being separated from the rotating guide part 300. have.

The rotation guide part 300 may include a circular rail 310 and a bearing member 320.

The circular rail 310 is disposed inside the cage 100 and may be disposed to surround the rolling member 230.

Here, the circular rail 310 may have a fastening inlet slightly smaller than the thickness of the rolling member 230, and may include a hook-shaped locking means formed to prevent the rolling member 230 from being separated from the inside.

The bearing member 320 may reduce friction between the circular rail 310 and the rolling member 230 and may increase the rolling efficiency of the rolling member 230.

Here, the bearing member 320 may include a ball bearing or a magnetic bearing.

That is, in the drone having a protective function according to an embodiment of the present invention, the drone body 10 is not directly fastened to the cage 100, but is connected through the rotation support part 200 and the rotation guide part 300, and X Even if the cage 100 rotates in an unexpected direction due to an impact because it is connected to be rotatable using the axis and the Z axis as a rotation axis, the drone body 10 is required to fly along the set flight path regardless of the rotation direction of the cage 100. It is possible.

5 is a perspective view showing a drone having a protection function according to another embodiment of the present invention, and FIG. 6 is an exemplary view showing a state change of the drone having a protection function of FIG. 5.

5 and 6, a drone having a protective function according to another embodiment of the present invention may include a drone body 10, a cage 100, a rotation support part 400, and a rotation guide part 300. have.

Here, the drone body 10, the cage 100, and the rotation guide unit 300 of the drone having a protective function of FIGS. 5 and 6 are the drone body 10, the cage 100, and the rotation guide unit ( A detailed description of the same configuration as 300) is omitted, and hereinafter, the rotation support part 400 of the drone having a protective function according to another embodiment of the present invention will be described in detail.

The rotation support 400 may be connected to the inside of the cage 100 so that the drone body 10 is rotatable.

The rotation support part 400 may include a rotation rod 410, a fastening member 420, 430, 440, and a rolling member 450.

The rotating rod 410 may substantially serve as a connection rod connecting the drone body 10 and the cage 100.

Here, the rotation rod 410 may rotate through the rotation guide unit 300 using the X and Z axes as rotation axes.

The fastening members 420, 430, 440 may fasten the drone body 10 to the rotating rod 410.

The fastening members 420, 430, 440 may include a first fastening member 420, a hinge member 430, and a second fastening member 440.

The first fastening member 420 may be formed to protrude upward from an approximately center of the rotation rod 410.

The hinge member 430 connects the first fastening member 420 and the second fastening member 440, and rotates the hinge member 430 along a rotation axis (Y-axis). The first fastening member 420 and the second fastening member 440 ) Can rotate with each other.

Here, although not shown, a bearing member (not shown) for reducing friction is preferably disposed between the hinge member 430 and the first fastening member 420 or the second fastening member 440.

The lower end of the second fastening member 440 may be connected to the first fastening member 420 and the rotating rod 410 through the hinge member 430, and the upper end may be fastened to the drone body 10.

The rolling member 450 is disposed at both ends of the rotation rod 410, has a disk shape or a spherical shape, and may be inserted into the rotation guide part 300.

The rolling member 450 may rotate along the rotation guide part 300 in the X-axis and the Z-axis, and the connected rotation rod 410 may be rotated.

Here, it is preferable that the rolling member 450 has a larger thickness (diameter) than the thickness of the rotating rod 410, and through this, it is possible to prevent the rolling member 450 from being separated from the rotating guide part 300. have.

That is, in the drone having a protective function according to another embodiment of the present invention, the drone body 10 is not directly fastened to the cage 100, but is connected through the rotation support part 400 and the rotation guide part 300, and X It is connected to be rotatable with the axis and the Z axis as a rotation axis, and at the same time, it can be connected to rotate or tilt the Y axis as a rotation axis, so even if the cage 100 rotates in an unexpected direction due to an impact, the drone body 10 is the cage 100 It is possible to fly along the set flight path regardless of the direction of rotation.

7 is a perspective view showing a drone having a protection function according to another embodiment of the present invention, FIG. 8 is an exemplary view showing a state change of the drone having a protection function of FIG. 7, and FIG. 9 is C- It is a sectional view taken along line C'

7 to 9, a drone having a protective function according to another embodiment of the present invention includes a drone body 10, a cage 100, a rotation support part 200, a rotation guide part 300, and an outer cage. It may include 500.

Here, the drone body 10, the cage 100, the rotation support part 200 and the rotation guide part 300 of the drone having a protective function of FIGS. 7 to 9 are the drone body 10 and the cage 100 of FIG. 1. ), a detailed description of the same configuration as the rotation support part 200 and the rotation guide part 300 is omitted, and hereinafter, the outer cage 500 of the drone having a protective function according to another embodiment of the present invention will be described in detail. do.

As described above, the cage 100 may be configured to include a plurality of circular frames 110.

The outer cage 500 may accommodate the cage 100, the drone body 10, the rotation support part 200, and the rotation guide part 300 therein.

The outer cage 500 differs only in diameter from the cage 100, and similarly, a circular frame 510 is a spherical body formed by repeatedly arranging in a chain, and a plurality of openings is formed, so that the sensor of the drone body 10 It is preferable not to interfere with the sensing operation of the unit 13.

In addition, the outer cage 500 may further include an outer circular rail 520 and a bearing member 530.

First, the circular frame 610 is made of any one of a foam or an elastic body or a tube filled with air to protect the drone body 10 located inside in the event of a collision, and preferably It is preferable that the drone body 10 located inside the drone body 10 is made of a lightweight material so as not to interfere with the flight, but is made of a foam that can be used as a disposable part for a guard that is rigid and can only be replaced due to frequent collisions.

At this time, the foam is a material mixed with a polypropylene, polyether, or polyurethane-based polyol, a catalyst to improve the reaction speed or moldability, and a foaming agent and other additives, inserted into the mold, and then cured. It is possible to buffer by maintaining a predetermined elastic force while having. At this time, a silicone foaming agent for dispersion of foaming gas or stabilization of the cell membrane may be injected into the mold. In some embodiments, a release agent may be injected so as not to damage the outer surface of the foam during demolding.

For reference, in the present invention, EPP (Expanded PolyPropylene) foam which has high mechanical strength, elastic modulus, and flexibility while being easy to reduce weight is preferable.

Here, the plurality of circular frames 510 are in close contact with each other and fixed through a fixing means to form an outer cage 500 of a spherical body.

Meanwhile, the outer circular rail 520 may be disposed outside the cage 100 and may be disposed to surround at least a portion of the circular frame 110 of the cage 100.

Here, the outer circular rail 520 may have a fastening inlet slightly smaller than the thickness of the circular frame 110, and may include a hook-shaped locking means formed to prevent the circular frame 110 from being separated from the inside. .

The bearing member 530 may reduce friction between the outer circular rail 520 and the circular frame 110 and increase rolling efficiency of the circular frame 110.

Here, the bearing member 530 may include a ball bearing or a magnetic bearing.

That is, in the drone having a protective function according to another embodiment of the present invention, the drone body 10 is not directly fastened to the cage 100, but is connected through the rotation support part 200 and the rotation guide part 300, Even if the cage 100 rotates in an unexpected direction due to an impact because it is connected to be rotatable using the X-axis and Z-axis as the rotational axis, the drone body 10 will fly along the set flight path regardless of the rotation direction of the cage 100. It is possible.

In addition, by further forming an outer cage 500 on the outside of the cage 100, an excellent shock mitigation effect can be expected primarily, and due to the rolling between the cage 100 and the outer cage 500, the X-axis, Z The drone body 10 is set regardless of the rotation direction of the cage 100 or the outer cage 500 even if the cage 100 rotates in an unexpected direction due to an impact because it is connected to rotate or tilt not only the axis but also the Y axis. It is possible to fly along the flight path.

What has been described above is only one embodiment for implementing a drone having a protective function according to the present invention, and the present invention is not limited to one embodiment, and as claimed in the following claims. Without departing from, anyone of ordinary skill in the field to which the present invention pertains will have the technical spirit of the present invention to the extent that various modifications can be implemented.

10: drone body 100: cage
200: rotation support part 300: rotation guide part

Claims (11)

It includes a drone body, a cage, a rotation support part, a rotation guide part, and an outer cage,
The cage is composed of a plurality of circular frames accommodating the drone body therein and forming a plurality of openings,
The rotation support unit includes a rotation rod; A fastening member for fastening the drone body to the rotating rod; And a disk-shaped or spherical rolling member disposed along both ends of the rotation rod and inserted into the rotation guide part, and is rotatably connected to the inside of the cage,
The rotation guide part connects the cage and the rotation support part, guides the rotation of the rotation support part, and is disposed inside the cage and surrounds the rolling member; And a bearing member disposed between the circular rail and the rolling member,
An outer circular rail that accommodates the cage and surrounds at least one circular frame of the cage; And an outer bearing member disposed between the outer circular rail and the frame,
The bearing member and the outer bearing member include magnetic bearings, the drone body is tilted with respect to the rotating rod, and the rotating rod rotates in X, Y and Z axes, respectively, with respect to the rotating rod axis. ,
A drone with a protective function.
delete delete delete The method of claim 1,
Drone having a protective function, characterized in that the thickness of the rolling member is larger than the thickness of the rotating rod.
delete The method of claim 1,
The fastening member
A first fastening member disposed on the rotating rod;
A second fastening member fastened to the drone body; And
A hinge member connecting the first fastening member and the second fastening member; Drone having a protective function, characterized in that it comprises a.

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