KR101793389B1 - Aircraft having variable frame - Google Patents

Abstract

According to one embodiment, an aerial vehicle having a variable frame comprises: a rotor generating a thrust to enable an aerial vehicle to land; and the variable frame supporting the rotors. The variable frame can comprise: a pair of first aerial vehicle frames; and a pair of second aerial vehicle frames connected to cross the first aerial vehicle frames. The first aerial vehicle frames and the second aerial vehicle frames can be connected to control an angle between the vehicle frames to be controlled.

Description

[0001] AIRCRAFT HAVING VARIABLE FRAME [0002]

A flight vehicle having a variable frame is disclosed. Specifically, a flight body having a variable frame in which the arrangement of a plurality of frames supporting rotors of a flying body is changed so that the distance between the respective rotors can be changed is disclosed.

Flight bodies are typically aircraft, unmanned aircraft, helicopters, equipment and gliders.

Among these airplanes, unmanned aerial vehicles can be operated remotely using radio waves without a person. Thus, unmanned aerial vehicles can increase fuel efficiency and loading efficiency by reducing volume and weight, and can be used as a vehicle to carry out missions in dangerous areas instead of people.

In recent years, these unmanned aerial vehicles have been used for various purposes by various organizations such as global companies, IT companies, engineering universities, and the like due to the lower production costs and various applications due to the development of production technology.

For example, unmanned aerial vehicles can be used for agriculture, fire fighting, etc., and can spray liquid to a target area at a high speed. In particular, unmanned aerial vehicles used for agricultural purposes are operated by the air supplied by the rotor in a downward direction The liquid can be jetted over a wide range, where the wider the gap between the rotors, the more aggressive the liquid can be sprayed.

Generally, multi - copter unmanned aerial vehicles mainly generate lift to take off the UAV by using a lot of rotors and change the thrust of the rotor to realize forward flight by maintaining posture and attitude change.

Such an unmanned aerial vehicle is disclosed in Korean Unexamined Patent Application Publication No. 2016-0014266 filed on July 29, 2014.

According to an embodiment of the present invention, the object of a flight vehicle having a variable frame is to provide a flight vehicle capable of automatically or manually changing the spacing of the rotors and the shape of the variable frame.

Another object of the present invention is to provide a flight capable of changing the shapes of rotors and variable frames during flight.

Another object of the present invention is to provide a flight body capable of jetting agricultural liquid to a wider range when the air vehicle is used for agricultural purposes.

Another object of the present invention is to provide a variable frame capable of reducing the weight of a flying body by maintaining a shape without a central structure.

Another object of the present invention is to provide a flight vehicle which can reduce the size of a flight vehicle having a variable frame.

According to one embodiment, another object of the air vehicle having a variable frame is to provide a deformable function of the variable frame during flight.

According to an embodiment of the present invention, a flight body having a variable frame may include a rotor for generating a thrust, and a variable frame for supporting the rotors. The variable frame includes a pair of first gas frames And a pair of second gas frames that are connected to intersect with the pair of first gas frames, wherein a pair of the first gas frames and the pair of the second gas frames are spaced apart from each other by an angle To be adjusted.

According to an embodiment, the air vehicle having a variable frame may further include an actuator for adjusting a connection angle between the pair of first gas frames and the pair of second gas frames, The first base frames may be disposed parallel to each other, and the pair of second base frames may be disposed parallel to each other.

Further, the actuator according to an embodiment may be a linear actuator, and the linear actuator may be disposed in a space between the first gas frames and the second gas frames, The angle between the first gas frames and the second gas frames may be varied.

Alternatively, the actuator according to an embodiment may be a rotating motor, and the rotating motor may be disposed at a portion where the first gas frames and the second gas frames intersect, The angles of the first airframe frames and the second airframe frames may be varied.

Alternatively, the first substrate frames according to an embodiment may be arranged parallel to each other, and the second substrate frames may be arranged parallel to each other, and between the first substrate frames and the second substrate frames A support for fixing an angle and a distance between the first base frames and the second base frames may be provided.

According to another aspect of the present invention, there is provided a flying body having a variable frame, the rotor including a rotor for generating a thrust, and a variable frame having a shape varying with respect to the rotor, , And the gas frames constituting each side of the polygon may be hingedly coupled to vary the angle of connection.

In addition, according to one embodiment, a flight body having a variable frame may further include an actuator that deforms the arrangement of the frame bodies, and the actuator is remotely controllable, so that even when the flight body is in flight, Lt; / RTI >

Also, the polygonal arrangement of the gas frames may be changed according to the change of the angle of the gas frames according to an embodiment, so that the width of the polygonal arrangement may be increased or decreased.

According to an embodiment, a flight body having a variable frame is provided with a flight body capable of automatically or manually changing the spacing of the rotors and the shape of the variable frame.

According to an embodiment, a flight body having a variable frame is provided with a flight body capable of changing the shapes of the rotors and the variable frame during flight.

In addition, according to the air vehicle having the variable frame according to the embodiment, when the air vehicle is used for agriculture, a flight body capable of spraying agricultural liquid over a wider range is provided.

In addition, according to an embodiment, a variable body having a variable frame is provided with a variable frame capable of maintaining a shape without a central structure and capable of reducing the weight of a flying body.

In addition, according to an embodiment, a flight body having a variable frame is provided with a flight body that can be reduced in size during transportation.

According to an embodiment, a flight body having a variable frame is provided with a flight body in which a connection angle of a variable frame is changed during a flight.

Figure 1 shows a vehicle in accordance with one embodiment.
2 is a perspective view of a variable frame, according to one embodiment.
Figure 3 shows a square arrangement of a variable frame with a linear actuator, according to one embodiment.
Fig. 4 illustrates an arrangement in which the variable frame is changed from square to rhombus with linear actuators, according to one embodiment.
Figure 5 shows a variant frame with a support, according to a variant.

Hereinafter, embodiments will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments, detailed description of known functions and configurations incorporated herein will be omitted when it may make the best of an understanding clear.

In describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

FIG. 1A is a perspective view of a flying object according to an embodiment, and FIG. 1B is a plan view of a flying object according to an embodiment. 2 is a perspective view of a variable frame according to an exemplary embodiment of the present invention.

1A to 2, the air vehicle may include a variable frame 100, a rotor 200, an electric field 300, and a landing platform 400. [

The rotor 200 can generate lift that raises the air vehicle through rotation. Also, after the airplane is raised, the rotor 200 may generate a thrust capable of moving the airplane in a direction desired by the user.

Specifically, a plurality of rotors 200 may be provided in the air vehicle, and the rotor 200 may include a propeller and a rotary shaft. A propeller is disposed at the end of the rotary shaft, and the rotary shaft can generate lift that raises the flying object in accordance with rotation by a power device such as a motor. The plurality of rotors 200 can be arranged so that the lift generated by each other can be balanced to stably take off or fly the air vehicle.

For example, the rotor 200 may be disposed symmetrically or symmetrically about the center of gravity of the flying body, and may be disposed symmetrically about the center of gravity of the flying body, and may also be disposed between the first airframe frames 110 of the variable frame 100, (120). ≪ / RTI >

The electric field 300 includes a battery that can supply power to the rotor 200, a communication unit that wirelessly communicates with the user, a control unit that controls the flying object, a GPS that collects position information of the flying object, And may be connected to the variable frame 100.

The landing platform 400 can absorb the shock transmitted to the air vehicle when the airplane lands, and can be disposed under the electric field 300 or the variable frame 100.

As shown in FIG. 1, the electric field 300 may be positioned on the upper portion of the variable frame 100. Such an electric field 300 may be connected to allow the deformable frame 100 to be deformed. For example, a protruding element may be formed on the upper portion of the variable frame 100, and a guide groove corresponding to the protruding element of the variable frame 100 may be formed on the lower portion of the electric field 300, And can be moved within the orbit.

Although the electric field 300 described herein is disclosed as having a guide groove, it is not limited thereto. For example, the electric field 300 and the variable frame 100 may be connected to a rack gear and a pinion gear.

The variable frame 100 may support the rotor 200 and the electric field 300 or the landing platform 400.

The variable frame 100 may also include first and second airframe frames 110 and 120 and may include an angle between the first and second airframe frames 110 and 120, Can be modified by the change.

The first substrate frames 110 may be provided in plural and the second substrate frames 110 may be connected to intersect with the first substrate frames 110. The first airframe frames 110 and the second airframe frames 120 are rotatable relative to each other such that the angle between the first airframe frames 110 and the second airframe frames 120 can be adjusted .

For example, the first substrate frames 110 and the second substrate frames 120 may be formed in a straight line, and may be arranged to intersect with each other and be disposed in a well shape or a cross shape. That is, as shown in FIG. 2, the variable frame 100 may have a square or rhombic center space surrounded by the first base frames 110 and the second base frames 120. In addition, the intersections of the respective gas frames 110, 120 can be hingedly coupled and rotated relative to each other.

The variable frame according to one embodiment is shown and described in the detailed description and the drawings as consisting of a pair of linear first gas frames and a pair of linear second gas frames and is formed as a square, . For example, the variable frame may include a plurality of gas frames, and the plurality of gas frames may intersect with each other so that the center space of the variable frame is a polygon such as a square, a pentagon, and a hexagon, or a combination of a plurality of polygons .

FIG. 3 illustrates a square arrangement of variable frames with linear actuators, according to one embodiment, and FIG. 4 illustrates a rhombic arrangement of variable frames with linear actuators, according to one embodiment.

More specifically, FIG. 3A shows a top view of a variable frame 100 arranged in a square, FIG. 3B shows a front view of a variable frame 100 arranged in a square, FIG. 4A shows a front view of a variable frame 100 arranged in a rhombic shape, Fig. 4B shows a front view of the variable frame 100 arranged in a square. Fig.

3A to 4B, a variable frame 100 according to an embodiment may include a pair of first gas frames 110, a pair of second gas frames 120, and an actuator.

The pair of first base frames 110 may be disposed parallel to each other, and the pair of second base frames 120 may be disposed parallel to each other. The first gas frames 110 and the second gas frames 120 may intersect and be arranged in a square manner and the first gas frames 110 and the second gas frames 120 may be connected by an actuator have.

The actuator according to one embodiment may be a linear actuator 130 and the linear actuator 130 may connect each of the first gas frames 110 or each of the second gas frames 120, And may be disposed to connect the first base frame 110 and the second base frame 120 to each other. The linear actuator 130 can be extended or contracted in the longitudinal direction of the linear actuator 130 by the power.

For example, the linear actuator 130 may include first and second gas frames 110 and 120 to divide a square arrangement formed by the first gas frames 110 and the second gas frames 120, ) At two intersecting points.

As shown in FIG. 3A, a pair of first base frames 110 may be arranged parallel to each other, a pair of second base frames 120 are arranged in parallel with each other, The gas frames 110 and the pair of second gas frames 120 may be arranged in a square or # shape in a direction perpendicular to each other. The linear actuator 130 may be installed inside the variable frame 100 having a well shape.

4A, the linear actuator 130 is extended so that the variable frame 100 is formed in a shape of a rhombus or a rhombus having a changed angle between the first base frames 110 and the second base frames 120. [ (#).

3B and FIG. 4B, the width of the variable frame 100 may vary with the expansion and contraction of the linear actuator 130, so that the interval between the rotors 200 installed in the variable frame 100 is changed . That is, the interval between the rotors 200 can be changed in accordance with the expansion and contraction of the linear actuator 130.

Specifically, the intersection points of the first substrate frames 110 and the second substrate frames 120 can be partially oriented toward each other by the extension and contraction of the linear actuator 130, , The first airframe frames 110 and the second airframe frames 120 may be rotated relative to each other in accordance with the movement of the intersection points. The angles between the first gas frame frames 110 and the second gas frame frames 120 can be increased or decreased according to the rotation of the first gas frame frames 110 and the second gas frame frames 120 The intersection points where the linear actuator 130 is not installed can also be increased or decreased in the opposite direction to the intersections where the linear actuators 130 are installed.

That is, the linear actuator 130 connecting the two intersection points may be extended to deform the shape of the variable frame 100, which is a square shape, into a rhombus shape, or the linear actuator 130 may contract the rhombus shape of the variable frame 100 Can be deformed into a square shape.

Alternatively, the actuator according to another embodiment may be a rotary motor. A rotating motor, not shown in the drawing, may be installed at the intersection of at least one of the first and second airframe frames. The rotation motor installed at the intersection of the first gas frames and the second gas frames may be rotated to increase or decrease the angle between the first gas frame and the second gas frame, and in the same manner as the linear actuator according to the embodiment, The shape of the variable frame is changed according to the change of the angle of the frame and the second base frame, and the width of the variable frame can also be changed.

The actuators according to the above embodiments are remotely controlled and can be operated during flight. That is, the user can remotely control the actuator, and the flexible frame 100 can be deformed during flight by the expansion or the rotation of the actuator. Accordingly, the user can adjust the width of the variable frame 100 of the flying object in flight.

Figure 5 shows a variant frame with a support, according to a variant.

More specifically, FIG. 5A shows a variable frame 100 in which a support frame is installed so that the first base frame 110 and the second base frame 120 are vertically fixed to each other.

5B shows a variable frame 100 in which a support frame is installed to maintain a lozenge arrangement of the first base frame 110 and the second base frame 120.

5C shows a variable frame 100 having a shape in which the space between the first base frame 110 and the second base frame 120 is reduced by rotating the first base frame 110 and the second base frame 120 do.

Referring to FIGS. 5A to 5C, the air vehicle having the variable frame 100 according to the modification may include the rotor 200 and the variable frame 100.

The variable frame 100 may include a plurality of gas frames that are rotatably intersecting with each other. For example, the gas frames may include a pair of first gas frames 110, Two gas frames 120 may be constructed.

The variable frame 100 may be provided with a support.

The support may be a relatively long first support 142 or a relatively short second support 144.

The first support 142 or the second support 144 may be detachably disposed between at least two gas frames 110 and 120 so that the intersection of the gas frames 110 and 120 is not rotated .

As shown in FIG. 5A, the first support 142 may be mounted at two opposing intersections of the intersections of the hinge-coupled first gas frames 110 and the second gas frames 120. The mounted first support 142 can fix the interval and the angle between the first gas frames 110 and the second gas frames 120.

5B, the second support 144 may be mounted at two opposing intersections of the intersections of the hinge-coupled first gas frames 110 and the second gas frames 120 have. The mounted second support 144 may fix the gap and the angle between the first gas frames 110 and the second gas frames 120.

Therefore, the support frames 142 and 144 according to the modified example can be installed in the variable frame 100 to fix the shape of the variable frame 100.

Accordingly, the air vehicle having the variable frame 100 according to the above embodiments can be used for various purposes and can have various effects. For example, aviation can be used as an agricultural aviation body capable of spraying agricultural chemicals to a large extent in agriculture.

Specifically, in the variable frame 100 according to the embodiments, the agricultural medicine container accommodating agricultural chemicals can be mounted on the lower end, a battery for supplying power to the rotor 200 can be installed, And a communication unit for controlling the variable frame 100 and a control unit 300 may be provided.

The rotor 200 may be disposed at the ends of the first body frame 110 and the second body frames 120 of the variable frame 100 and may be provided at the lower portion of the rotor 200 with agricultural chemicals A spray nozzle for spraying may be provided.

The spray nozzle can be connected to the agricultural medicine receiving part through a hose, and the agricultural medicine can be supplied to the spray nozzle through the pump. At this time, the agricultural chemicals sprayed by the jetting nozzles can be sprayed over a wide range by the thrust generated by the rotor 200. The larger the gap between the rotors 200, that is, the width in one direction of the variable frame 100, The drug can be injected in a wider range.

According to one embodiment using a support, before flying the air vehicle, the air vehicle may be in a collapsed state, as shown in Figure 5c, and the user manually moves the first airframe frame 110 and the second airframe frame 120 So that the variable frame 100 can be formed in a rhombus shape. Thereafter, the user manually mounts the first support 142 on the variable frame 100 to fix the diamond shape of the variable frame 100 and to drive the air vehicle.

Alternatively, according to one embodiment using the actuator, the variable frame 100 of the air vehicle can take off in a square shape for stable takeoff of the air vehicle, and the actuator (the linear actuator 130 ) Or a rotary motor) may be controlled and deformed into a diamond shape.

The variable frame 100 deformed in the diamond shape of the airplane makes it possible to spray the agricultural medicine over a wide range of the flying body than the square variable frame 100. Accordingly, the flight time can be shortened to accomplish the spraying work of the agricultural chemicals, and therefore the fuel efficiency of the air vehicle can be improved.

Since the gas frames of the variable frame 100 are arranged in an intersecting manner, the moments generated by the respective rotors 200 can be dispersed and can be made of a variable material, and the shape change of the variable frame 100 The width of the variable frame 100 in one direction can be reduced, thereby securing the view of the camera.

That is, the flight body having the variable frame 100 according to the above embodiments can automatically or manually change the interval between the rotors and the shape of the variable frame 100 during flight, and can maintain the shape without the central structure It is possible to reduce the weight of the flying body, to reduce the size of the flying body, to secure the visibility of the flight camera during flight, and to spray the liquid to a wider range when it is used for agriculture and fire.

Although the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

100: variable frame
110: first base frame
120: second base frame
130: linear actuator
142: first support
144: second support
200: Rotor
300: Battleground
400: Landing Stations

Claims (8)

A rotor generating thrust; And
A variable frame supporting the rotor;
/ RTI >
In the variable frame,
A pair of first gas frames;
A pair of second gas frames connected to cross a pair of the first gas frames;
/ RTI >
A pair of the first base frames and the pair of the second base frames are connected so as to adjust the angle between them,
The first base frames are arranged parallel to each other,
The second base frames are arranged parallel to each other,
And a support frame for detachably fixing an angle and a distance between the first gas frame frames and the second gas frame frames is detachably installed between the first gas frame frames and the second gas frame frames, .
The method according to claim 1,
Further comprising an actuator for adjusting a connection angle of a pair of said first base frames and a pair of said second base frames,
A pair of the first base frames are arranged parallel to each other,
And a pair of the second base frames are arranged in parallel with each other.
delete 3. The method of claim 2,
The actuator is a rotary motor,
Wherein the rotating motor is disposed at a portion where the first base frames and the second base frames intersect,
Wherein the angle of the first gas frame and the second gas frame is changed by rotation of the rotation motor.
delete A rotor generating thrust;
A variable frame supporting the rotor and changing its shape; And
A linear actuator disposed in a space between the variable frames;
/ RTI >
Wherein the variable frame comprises a plurality of gas frames arranged in a polygon,
The gas frames constituting each side of the polygon are intersected with each other and each intersection is rotatably hinged to each other,
Wherein the linear actuator is provided so as to connect between the intersection points, and wherein the gas frames are rotated with respect to each intersection point by expansion and contraction of the linear actuator.
The method according to claim 6,
Wherein the actuator is remotely controllable so that the frame connection angle is adjusted even when the flying object is in flight.
The method according to claim 6,
Wherein a polygonal arrangement of the gas frames is changed according to an angle change of the gas frames, thereby increasing or decreasing the width of the polygonal arrangement.

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