KR102106339B1 - Drones with hologram fan - Google Patents

Abstract

Disclosed is a drone that is equipped with a hologram fan to realize a 3D hologram image in the air. By attaching the hologram fan to the lower surface of the drone and rotating in flight, the hologram image can be displayed in the air, and the upper fan for offsetting the reverse torque on the upper surface to prevent the flight from becoming unstable due to the occurrence of reverse torque due to rotation By rotating it, it can fly stably and perform outdoor advertising.

Description

Drones with hologram fan

The present invention relates to a drone equipped with a hologram fan, and more particularly, to a drone equipped with a hologram fan displaying a 3D stereoscopic image using holography in the air.

Holography refers to an image recording and reproducing method in which a 3D image is completely reproduced after recording 3D image information of an object on a photosensitive medium such as a photographic film, and a 3D visual information made of a 3D image using these principles Is called a hologram.

Holograms are used in various fields according to their use. Reflective holograms attached to prevent forgery of credit cards, etc. are an example of a hologram commonly found in our lives.

In addition, the hologram is used as a storage medium because it can record the information of a plane on one point, and it can reproduce the appearance of the entire hologram even with a small piece of the hologram as if looking through the window. In addition, as research on a method of reproducing a continuous image is made, it is possible to produce a film using a hologram, and it can be used for medical purposes as it is possible to observe a human skeleton in three dimensions. In addition, it is widely used in various fields such as architecture and automobile design.

In recent years, by applying holograms to product advertisements to provide three-dimensional information on the target product, it creates a positive effect such as visually satisfying the user and stimulating the desire to purchase.

Furthermore, attempts have been made to increase the accessibility of advertisements by allowing general consumers, who are the main targets of advertisements, to come into contact with 3D holograms naturally without the effect of special glasses or lighting.

According to these needs, recently, a fan installed on the ceiling inside the store is rotated around a certain axis, and the image from the three-color LED is rotated at 600-700 revolutions per minute using the remnant memory effect of the retina. Equipment that makes holograms appear is also on the market.

This is called a 3D hologram led fan (hereinafter referred to as the 'hologram fan').

However, since the hologram fan requires constant rotation of the fan, it must be firmly fixed and installed in a specific place, as well as minimize the influence of gravity acting on the fan in the rotating state, and the general consumer on the ground will look up at the advertising medium. It was essential that the rotating shaft of the equipment was fixed to the ceiling to be driven.

Due to these structural limitations, hologram fans have been undesirable for performing outdoor advertising, and have been used only in limited environments inside a store.

In addition, even if a hologram fan is attached to a vehicle such as a drone to solve this problem, there may be a problem that it is difficult to stably control the vehicle in the air due to the occurrence of reverse torque due to the rotation of the hologram fan.

Patent Publication No. 10-2018-0055348

An object of the present invention is to provide a drone having a hologram fan displaying a 3D hologram image in the air.

Another object of the present invention is to provide a drone with a hologram fan that improves flight safety by canceling the reverse torque generated in the air.

The present invention to achieve the above object, the body portion;

A plurality of arms extending from the body portion;

A wing portion attached to the arm so that the body portion can fly;

A first driving part provided on a rotation axis of the wing part and providing rotational power to the wing part;

A hologram fan having a plurality of led elements, rotating on one side of the body, rotating, and displaying a three-dimensional image in the air;

A first control unit controlling rotational movement of the hologram fan and lighting of the led element;

It includes a power supply for supplying electrical energy to the first driving unit and the hologram fan,

The hologram fan,

It characterized in that the body portion through the groove formed in the center of the body portion is detachably axially fixed.

In addition, the body portion further includes a reverse torque generating part that rotates on a rotation axis provided on the same line as the rotation axis of the hologram fan and cancels the reverse torque generated by the rotation of the hologram fan.

In addition, the reverse torque generating portion, the upper fan rotatably fixed to the upper surface of the body portion; A second driving part receiving electrical energy from the power supply part and providing rotational power to the upper fan; It includes a second control unit for controlling the rotational speed of the upper fan.

The present invention has an effect of realizing a 3D hologram image in the air by rotating a hologram fan detachably in the center of the bottom surface of the drone and rotating around the axis.

The present invention has an effect of canceling the reverse torque generated by the rotation of the hologram fan by rotating the upper fan provided on the upper surface of the drone body portion around a certain axis.

1 is a perspective view of a drone equipped with a hologram fan according to an embodiment of the present invention.
2 is a front view of a drone equipped with a hologram fan according to an embodiment of the present invention.
3 is a bottom view of a drone equipped with a hologram fan according to an embodiment of the present invention.
4 is a perspective view of a hologram fan according to an embodiment of the present invention.
5 is a plan view showing a coupling structure of a drone equipped with a hologram fan according to an embodiment of the present invention.
6 is a plan view of a drone equipped with a hologram fan provided with an upper fan.
7 is a perspective view of an upper fan according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings. It should be noted that the same components in the drawings are denoted by the same reference numerals wherever possible. In addition, descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted.

In addition, various modifications may be made to the embodiments described below. It should be understood that the examples described below are not intended to limit the embodiments, and include all modifications, equivalents, or substitutes thereof.

It will be described logically according to the drawings below.

1 is a perspective view of a drone equipped with a hologram fan 200 according to an embodiment of the present invention. 2 is a front view of a drone equipped with a hologram fan 200 according to an embodiment of the present invention. 3 is a bottom view of a drone equipped with a hologram fan 200 according to an embodiment of the present invention. 4 is a perspective view of a hologram fan 200 according to an embodiment of the present invention.

1, 2, 3 and 4, the drone equipped with the hologram fan 200 of the present invention, the body portion 100, the arm 110, the wing portion 300, the hologram fan ( 200), a first control unit (not shown), a first driving unit 310, and a power supply unit.

The body part 100, which constitutes the overall form of the drone, and considering that it is a configuration exposed directly to the outside, has a hardness and tensile force of a certain level or more, can fly in the air for a long time, and can easily change direction, vertical It is preferable to use a light metal material such as aluminum to enable movement.

However, it is also possible to change and use wood, carbon fiber, reinforced plastic, PCB, G10, etc. according to the use or use condition, and is not limited to a specific embodiment.

The body portion 100 is formed to form a completely symmetrical shape, so that the center of gravity on the drone coincides with the center point of the body portion 100.

In addition, to minimize the resistance of the air during flight, the outer thickness of the body portion 100 is configured to be as thin as possible, but the minimum internal space for storing the power supply unit, the hologram fan 200, the control unit, etc. It is desirable to secure.

In addition, a groove is formed in the center of the bottom surface of the body portion 100, and the hologram fan 200 may be fixed.

The body part 100 may be configured such that the upper fan 151 is exposed to the outside in the form of a housing with an open top surface. However, a shell covering the upper surface may be further provided according to the use state, and the shell may be designed for aesthetic purposes as well as a function of protecting the body portion 100.

The shell can make the drone more aerodynamic depending on its shape.

The body portion 100 further includes a landing gear (not shown) on one side of the lower portion, so that the drone can be landed without damage. One end of the landing gear catching the ground surface is made of plastic, metal, or rubber, so that the drone can be cushioned.

However, this does not preclude the use of wheels.

The landing gear may be formed extending from the arm 110 so as not to collide with the hologram fan 200.

In order to determine the route for the position of the drone even at night, the lower surface of the body portion 100 may further include a light emitting device such as an LED or a light emitting diode. This light emitting device is electrically connected to the power supply unit to receive electrical energy.

Arm 110, a plurality of extensions are formed from one side of the body portion 100, connects the wing portion 300 and the body portion 100 to provide thrust to the drone.

The lengths and shapes of the plurality of arms 110 are preferably formed to be the same, but symmetry is maintained even if the lengths and shapes are different, so that they can be variably applied as long as there is no obstacle to flight.

Depending on the number of arms 110, there are some differences in the functions of drones and their names, and in general, tricopters (3), quadcopters (4), hexacopters (6), octocopters (8), etc. It is separated by.

The direction in which the arms 110 extend may be symmetrical to each other, or even if not symmetrical, it may be suitable to form a radial shape so that the center of gravity of the drone is in the center of the body portion 100.

Each arm 110 may be firmly attached through a fixing device to form one body with one side of the body portion 100.

In addition, the material constituting the arm 110 is preferably a sturdy metal so that it is not easily bent from wind or external impact, and a plurality of through holes may be formed on the surface to minimize air resistance.

Through a plurality of through holes formed on the surface of the arm 110, the electric wire connecting the power supply unit and the first driving unit 310 can be arranged more efficiently.

The wing part 300 is provided with a plurality of at least two or more blades 320 in the form of a propeller extending from the center of rotation, extending from the body part 100 to rotate at a sufficient distance from the body part 100 It is fixed to the arm 110 to provide thrust for the flight of the drone.

Each blade 320 provided in one wing 300 may have the same size and shape.

However, each wing portion 300 does not necessarily have the same shape, and depending on the shape, may provide different functions such as providing propulsion in the vertical direction or changing the direction of the drone.

The material of the blade 320 is suitable to use a light reinforced plastic material to generate the maximum rotational force with less power, but it is also possible to apply materials such as carbon fiber, aluminum, wood, G10, PCB, etc., depending on the application. Do.

The blade 320 may be directly exposed to the outside, but may further include a prop guard (not shown) covering one side of the wing portion 300 to protect the blade 320 from the external environment or to protect a user. have. At this time, the prop guard is preferably configured such that one side is opened or a plurality of through holes are formed so that ventilation is good so that thrust due to rotation of the blade 320 is not lost.

Wing part 300 is preferably rotated so that the rotational axis is attached to the direction of gravity, but if the arm 110 is tilted to a certain angle and there is no obstacle to flight, the rotational axis direction is changeable.

In addition, it is possible to vary the rotational axis of the wing part 300 to be combined for direction adjustment and altitude adjustment, or to change the rotational axis mechanically through electrical energy during flight.

The hologram fan 200 may include a fan 201, a first driving shaft 203, and a support body 205.

The hologram fan 200 is attached to one side of the body portion 100 to rotate the fan 201 around the first driving shaft 203, and may implement a holographic image through a light emitter provided in the fan 201. Suitably, the luminous body is composed of an LED element.

Preferably, the body portion 100 is detachably attached to a groove formed in the center of the lower surface.

The first drive shaft 203 extending from the center of the fan 201 is connected to the support body portion 205 to form a body.

The support body 205 is accommodated in the groove formed in the body portion 100, and a part of the first driving shaft 203 and the fan 201 may be exposed to the outside.

In order to prevent vibration due to the rotational movement of the fan 201 and to detachably and firmly attach the supporting body to the body portion 100, the groove is sealed through a fixing member vertically supporting the supporting body portion 205. It can be, and may further include a pressing means 101 for pressing the side of the support matrix portion.

The fixing member or the pressing means 101 may be molded using a damper (not shown) in order to completely contact the supporting body portion 205 and the body portion 100.

The first control unit controls driving of the hologram fan 200 and lighting of the light emitter.

The first control unit is accommodated inside the body portion 100 but receives a wireless signal from the outside, it is possible to appropriately control the rotation speed of the fan 201 or LED light intensity and lighting to implement the hologram image accordingly.

It can be electrically connected to the power supply to receive electrical energy.

The first driving part 310 is provided on one side of the wing part 300 to provide thrust for flying of the drone by rotating the wing part 300.

It is preferable that the blade part 300 is directly rotated by being provided in the rotational axis direction of the wing part 300, but it is also disposed in a direction perpendicular to the rotational axis direction, so that a structure for transmitting power using a bevel gear or the like is not excluded.

Considering that the hologram fan 200 and the like should support the body portion 100 having the weight stored therein, it may be desirable to apply a light and high output configuration.

In addition, it is electrically connected to the power supply unit and can operate by receiving electrical energy.

When exposed directly to the outside, it may be appropriate to be housed in a housing that can pack the top and side surfaces, as there is a possibility of short circuits due to snow or rain during flight.

However, in order to prevent overheating due to prolonged use, ventilation may be possible using a housing with an open lower portion.

It will be appropriate to use a battery having a sufficient capacity in consideration of the fact that the power supply unit needs to provide the necessary power during the flight time and that the hologram fan 200, the upper fan 151, etc. have to be operated.

It is preferable to use a lithium polymer battery (Li-Po, Lithium Polymer) when considering weight and electric capacity. It can be detachably installed inside the body portion 100 to be replaced for recharging during discharge.

5 is a plan view showing a coupling structure of a drone equipped with a hologram fan 200 according to an embodiment of the present invention.

5, the drone equipped with the hologram fan 200 of the present invention is provided with a space in which the support body portion 205 of the hologram fan 200 can be stored on one side of the body portion 100, This space may extend to the center of the lower surface of the body portion 100 and be exposed to the outside.

After removing the fixing member sealing the space from below, and attaching the supporting body 205 of the hologram fan 200, the fixing member is covered again and the hologram fan 200 can be vertically supported using bolts or the like. have. At this time, a separate metal terminal may be further included in the space so that the first control unit and the power unit are electrically connected to the support body of the hologram fan 200.

Pressing means 101 is provided on the side of the space in which the supporting body portion 205 is accommodated, so that the supporting body portion 205 can be secondarily fixed, and to prevent separation from the pressing means 101, the pressing means (101) and the elastic body surrounding the contact surface of the support body portion 205 may be further included.

It is also preferable to use a power supply unit as the pressing means 101 in terms of space utilization.

However, such a fixed structure is not enforced, and any structure that is desirable for detachably attaching the hologram fan 200 to the body portion 100 is variably applied.

6 is a plan view of a drone equipped with a hologram fan 200 provided with a reverse torque generating unit 150. 7 is a perspective view of a reverse torque generating unit 150 according to an embodiment of the present invention.

6 and 7, the body part 100 of the present invention, the reverse torque generating part 150 provided on the upper surface may include an upper fan 151, a second driving part 160, and a second control part. . The reverse torque generating portion may be accommodated in the upper groove 105 formed in the body portion.

The upper fan 151 is provided inside the groove formed in the center of the upper surface of the body portion 100, and may be a rod-shaped rotating around the center of the body portion 100 as an axis.

However, this shape is not forced, and any configuration is applied as long as it is a rotating body capable of continuously generating a constant torque.

In addition, a partition wall 155 encircling the side surface is formed along the rotational radius of the upper fan 151 to guide the rotational movement of the upper fan 151.

By appropriately adjusting the angular velocity with respect to the inertia moment value determined by the shape and mass of the upper fan 151, it is possible to generate a torque corresponding to the reverse torque generated according to the rotational movement of the hologram fan 200.

The second driving shaft 163 is disposed on the same line as the first driving shaft 203, and the body portion 100 is generated by generating a torque having the same size and torque as a result of rotation of the hologram fan 200 and having the opposite direction. It is to prevent the phenomenon of shaking due to reverse torque.

The upper fan 151 is operated by a second driving unit 160 provided separately.

The second driving unit 160 is connected to the power supply unit to receive electric energy, and is electrically connected to the second control unit (not shown) to be controlled to operate in response to the torque value generated by the hologram fan 200.

If the second control unit can perform the above-described function, it is not necessarily installed adjacent to the reverse torque generating unit 150. In addition, the second control unit may be electrically connected to the first control unit to receive information about the rotational movement of the hologram fan 200 from the first control unit.

The upper surface of the body portion 100 is opened so that the upper fan 151 may be exposed to the outside, but in order to prevent foreign matter or the like from entering from the outside, preferably, it can be sealed through an upper cover (not shown). have.

100: body portion 101: pressing means
105: upper groove 110: arm
150: reverse torque generating unit 151: upper fan
155: bulkhead 160: second driving unit
163: 2nd drive shaft 200: hologram fan
201: Fan 203: 1st drive shaft
205: base body 300: wing
310: first driving unit 320: blade

Claims (3)

Body part;
A plurality of arms extending from the body portion;
A wing portion attached to the arm so that the body portion can fly;
A first driving part provided on a rotation axis of the wing part and providing rotational power to the wing part;
A hologram fan having a plurality of led elements, rotating on one side of the body, rotating, and displaying a three-dimensional image in the air;
A first control unit controlling rotational movement of the hologram fan and lighting of the led element;
It includes a power supply for supplying electrical energy to the first driving unit and the hologram fan,
The body portion,
It includes a reverse torque generating part that rotates on a rotation axis provided on the same line as the rotation axis of the hologram fan, and cancels the reverse torque generated by the rotation of the hologram fan.
The hologram fan,
Drone equipped with a hologram fan, characterized in that the body portion is axially fixed detachably with the body portion through a groove formed in the center.
delete According to claim 1,
The reverse torque generating unit,
An upper fan rotatably fixed to the upper surface of the body portion;
A second driving part receiving electrical energy from the power supply part and providing rotational power to the upper fan;
Drone equipped with a hologram fan including a second control unit for controlling the rotational speed of the upper fan.

Images