KR102289702B1 - Air-bag for Drone - Google Patents

Abstract

The present invention relates to an airbag for a drone, wherein the airbag for a drone according to the present invention is disposed on at least one of the upper and lower sides of the unmanned aerial vehicle 1000 including rotating wings, and the unmanned aerial vehicle 1000, the unmanned aerial vehicle 1000 ) includes an airbag 2000 that expands upon a fall, and the airbag 2000 includes a first inflatable part 2100 formed in a loop shape, and a connection part 2210 extending from the inside of the first inflatable part 2100 . It includes a plurality, and includes a second expansion part 2200 where the ends of the plurality of connection parts 2210 meet each other.

Description

Air-bag for Drone

The present invention relates to an airbag for a drone.

Drone refers to an unmanned aerial vehicle in the shape of an airplane or helicopter that can fly and be controlled by induction of radio waves without a pilot. Usually, it is equipped with a camera, sensor, and communication system, and the weight and size vary from 25g to 1200kg. For example, a drone may be classified into a bicopter (2 units), a quadcopter (4 units), a hexacopter (6 units), an octocopter (8 units), and the like according to the number of propellers. Drones were first developed for military use, but around the 2010s, they are being used in various civilian fields besides military use.

Meanwhile, as the shipments of drones are rapidly increasing, the damage caused by drone crashes is also increasing explosively every year. In the event of a drone crash, serious damages such as human casualties, aircraft damage, camera and attached equipment damage, loss of important data such as recorded video, and ground accidents such as vehicles occur.

However, as in the patent documents of the following prior art documents, the drone according to the prior art has a problem in that it does not have any means to prevent damage during a fall.

US 20-0479365 Y1

SUMMARY OF THE INVENTION The present invention is to solve the problems of the prior art, and one aspect of the present invention relates to an airbag for a drone capable of absorbing an impact in case of a fall by providing an airbag that surrounds an unmanned aerial vehicle from top and bottom.

An airbag for a drone according to an embodiment of the present invention includes an unmanned aerial vehicle including rotating wings, and an airbag disposed on at least one of an upper side and a lower side of the unmanned aerial vehicle, and inflating when the unmanned aerial vehicle falls, the airbag comprising: , a first expanded portion formed in a loop shape, and a plurality of connecting portions extending from the inside of the first expanding portion, and a second expanding portion at which ends of the plurality of connecting portions meet each other.

Further, in the airbag for a drone according to an embodiment of the present invention, when a point where the ends of the plurality of connection parts meet each other is defined as a first predetermined point, the first predetermined point is disposed at the center of the first inflatable part .

In addition, in the airbag for a drone according to an embodiment of the present invention, when the number of the connection parts is N (N is a natural number), the angle between the two adjacent connection parts is 360/N°.

In addition, in the airbag for a drone according to an embodiment of the present invention, when a point where the ends of the plurality of connection parts meet each other is defined as a first predetermined point, an inlet is formed at the first predetermined point, and the gas is transferred to the inlet. It is supplied through the , and the gas is delivered in the order of the second expansion part and the first expansion part.

In addition, in the airbag for a drone according to an embodiment of the present invention, when a point of the first inflating part from which the connecting part extends is defined as a second predetermined point, the first inflation is between two adjacent second predetermined points. The outer side of the portion has a first radius, the inner side of the first expansion portion between the two adjacent second predetermined points has a second radius, and the center of the first radius is the second radius compared to the center of the second radius. close to one expansion, wherein the first radius is smaller than the second radius.

In addition, in the airbag for a drone according to an embodiment of the present invention, when the point of the first inflatable part from which the connection part extends is defined as a second predetermined point, the farther the first inflatable part from the second predetermined point is, the more the thickness becomes thicker

In addition, in the airbag for a drone according to an embodiment of the present invention, the airbag includes a first airbag disposed above the unmanned aerial vehicle and a second airbag disposed below the unmanned aerial vehicle.

In addition, in the airbag for a drone according to an embodiment of the present invention, the airbag is provided inside a housing disposed on at least one of an upper side and a lower side of the unmanned aerial vehicle.

In addition, in the airbag for a drone according to an embodiment of the present invention, when the airbag is inflated, the housing is opened to expose the airbag to the outside of the housing.

In addition, in the airbag for a drone according to an embodiment of the present invention, when a point where the ends of the plurality of connection parts meet each other is defined as a first predetermined point, an inlet is formed at the first predetermined point, and the unmanned aerial vehicle and The gas is supplied to the inlet in a direction opposite to one side of the housing, and further includes a support part for separating the first predetermined point where the inlet is formed from one side of the housing.

In addition, in the airbag for a drone according to an embodiment of the present invention, the support includes an extension extending from the airbag in a direction to one side of the housing, and a fastening portion bent and extended from an end of the extension, and the fastening The portion is fixed to the housing.

In addition, in the airbag for a drone according to an embodiment of the present invention, a storage unit for storing the gas, a supply line for transferring the gas from the storage unit to the airbag, and disposed on one side of the unmanned aerial vehicle, the storage inside It further includes a gas supply unit including an auxiliary housing provided with an additional.

In addition, in the airbag for a drone according to an embodiment of the present invention, a storage unit for storing gas, a connector connected to the storage unit to branch a flow path into two, and a first airbag for transferring gas from the connector to the first airbag It further includes a first supply line, a second supply line for transferring the gas from the connector to the second airbag, and a gas supply unit including an auxiliary housing disposed on one side of the unmanned aerial vehicle and having the storage unit therein.

The features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Prior to this, the terms or words used in the present specification and claims should not be construed as conventional and dictionary meanings, and the inventor may properly define the concept of the term to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

According to the present invention, by providing an airbag that surrounds the unmanned aerial vehicle from the top and bottom, it is possible to effectively absorb the impact even in a fall. Accordingly, there is an advantage in that it is possible to prevent personal accidents, damage to the aircraft, damage to cameras and attached equipment, loss of important data such as captured images, and ground accidents such as vehicles.

1 to 2 are perspective views of an airbag for a drone according to an embodiment of the present invention;
3 is an exploded perspective view of an airbag for a drone according to an embodiment of the present invention, and
FIG. 4 is a plan view of the airbag shown in FIG. 3 .

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings and preferred embodiments. In the present specification, in adding reference numbers to the components of each drawing, it should be noted that only the same components are given the same number as possible even though they are indicated on different drawings. Also, terms such as “first” and “second” are used to distinguish one component from another, and the component is not limited by the terms. Hereinafter, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the gist of the present invention will be omitted.

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

1 to 2 are perspective views of an airbag for a drone according to an embodiment of the present invention.

1 to 2, the airbag for a drone according to the present embodiment is disposed on at least one of the upper side and the lower side of the unmanned aerial vehicle 1000 including the rotary wing 1100, and the unmanned aerial vehicle 1000 is The airbag 2000 includes an airbag 2000 that expands when a person falls, and the airbag 2000 includes a first inflatable part 2100 formed in a loop shape, and a plurality of connecting parts 2210 extending from the inside of the first inflatable part 2100 . and a second expansion part 2200 at which ends of the plurality of connection parts 2210 meet each other.

The unmanned aerial vehicle 1000 may be a type of a conventional drone. Here, the unmanned aerial vehicle 1000 includes a plurality of rotor blades 1100, a motor and a transmission providing driving force to the rotor blade 1100, a flight controller for controlling flight, a power supply device for supplying power, a GPS antenna, and a camera 1200 ) and the like. In addition, the housing 3000 and the airbag 2000 provided inside the housing 3000 may be disposed on the upper and lower sides of the unmanned aerial vehicle 1000 , and details thereof will be described later.

The airbag 2000 serves to absorb the impact by expanding when the unmanned aerial vehicle 1000 falls. Here, the airbag 2000 may be respectively disposed above and below the unmanned aerial vehicle 1000 . For example, the airbag 2000 may include a first airbag 2000a disposed above the unmanned aerial vehicle 1000 and a second airbag 2000b disposed below the unmanned aerial vehicle 1000 ( FIG. 2 ). reference). However, the airbag 2000 does not necessarily have to be disposed on both the upper side and the lower side of the unmanned aerial vehicle 1000 , and may be disposed only on one of the upper side and the lower side of the unmanned aerial vehicle 1000 . In addition, the airbag 2000 is not particularly limited, but may be formed of polyurethane.

As shown in FIG. 3 , the airbag 2000 includes a first inflatable part 2100 and a second inflatable part 2200 . Here, the first expansion part 2100 is formed in a loop shape as a whole. In addition, the second expansion part 2200 may include a plurality of connection parts 2210 extending from the inside of the first expansion part 2100 , and ends of the plurality of connection parts 2210 may meet each other. In this case, when a point where the ends of the plurality of connection parts 2210 meet each other is defined as a first predetermined point X1 , the first predetermined point X1 may be disposed at the center of the first expansion part 2100 . That is, the first expansion part 2100 is formed in a loop shape, the second expansion part 2200 extends to cross the loop-type first expansion part 2100 , and the plurality of connection parts 2210 are first expanded It can be found at the center of the portion 2100 . In this case, the two adjacent connection parts 2210 may form a predetermined angle. Accordingly, if there are N connection parts 2210 (N is a natural number), an angle between two adjacent connection parts 2210 may be 360/N°. For example, if there are four connection parts 2210 , an angle between two adjacent connection parts 2210 may be 90°. In this case, the second expansion part 2200 including the plurality of connection parts 2210 may cross the first expansion part 2100 in a cross shape. As such, since the second expandable part 2200 crosses the inside of the first expandable part 2100 and supports the first expandable part 2100 , the second expandable part ( 2200) may be left as an empty space. Therefore, there is an effect that can reduce the amount of gas consumption as much as the empty space.

In addition, an inlet 2220 is formed at the first predetermined point X1 of the second expansion part 2200 , and gas may be supplied through the inlet 2220 . Accordingly, the gas may be delivered in the order of the second expansion unit 2200 → the first expansion unit 2100 . As a result, the gas is supplied to the first predetermined point X1, which is the center of the airbag 2000, and delivered in the order of the second inflation unit 2200 → the first inflation unit 2100. 1 The expansion unit 2100 may be uniformly inflated at approximately the same time. In addition, when the airbag 2000 is inflated, the outermost portion of the first inflatable unit 2100 protrudes more outward than the outermost portion of the unmanned aerial vehicle 1000 , so that the first inflatable unit 2100 is the unmanned aerial vehicle 1000 . ) can be completely covered (see Fig. 2).

Meanwhile, as shown in FIG. 4 , the inner and outer sides of the first expansion part 2100 may have different radii R1 and R2 . Specifically, when the point of the first expansion part 2100 from which the connection part 2210 extends is defined as the second predetermined point X2, the first expansion part 2100 is located between two adjacent second predetermined points X2. ) may have a first radius R1, and an inner side of the second expansion part 2200 between two adjacent second predetermined points X2 may have a second radius R2. That is, when viewed from a plane, the outer contour of the first expandable part 2100 has a first radius R1 , and the inner contour of the first expandable part 2100 has a second radius R2 . At this time, the center C1 of the first radius R1 is closer to the first expansion part 2100 than the center C2 of the second radius R2, and the first radius R1 is the second radius R2. may be smaller than That is, the center C1 of the first radius R1 is disposed between the center C2 of the second radius R2 and the first expansion part 2100 , and the first radius R1 is the second radius R2 ) may be smaller than Accordingly, in the first expansion part 2100 , the thickness between the two adjacent second predetermined points X2 may be thicker than the thickness at the second predetermined point X2 (∵ the first radius R1 is relatively Because it is smaller and more protruding). More specifically, the thickness of the first expansion part 2100 may be increased as the distance from the second predetermined point X2 increases. In fact, since the first expandable part 2100 extends in a tubular shape, the cross-sectional area of the first expandable part 2100 may increase as the distance from the second predetermined point X2 increases. Accordingly, the second predetermined point X2 serving to substantially connect the first expansion part 2100 and the second expansion part 2200 can minimize the amount of gas consumption by reducing the volume as much as possible, and substantially the impact A region other than the second predetermined point X2 of the first expansion part 2100 that absorbs the shock can effectively absorb the shock by securing a sufficient volume.

Also, as shown in FIGS. 1 to 2 , a housing 3000 may be coupled to the unmanned aerial vehicle 1000 to store the airbag 2000 . Here, the housing 3000 may be disposed on at least one of an upper side and a lower side of the unmanned aerial vehicle 1000 , and an airbag 2000 may be provided therein. At this time, the airbag 2000 is provided inside the housing 3000 before being inflated (see FIG. 1 ), and when the airbag 2000 is inflated, the housing 3000 is opened and the airbag 2000 is moved to the housing 3000 . may be exposed to the outside of (see FIG. 2 ). When the airbag 2000 is inflated, the housing 3000 may include a first assembly member 3100 and a second assembly member 3200 so that the housing 3000 may be opened. Here, the first assembly member 3100 may be coupled to the unmanned aerial vehicle 1000 , and the second assembly member 3200 may be detachably coupled to the first assembly member 3100 . Accordingly, when the airbag 2000 is inflated, the second assembly member 3200 is separated from the first assembly member 3100 , and the airbag 2000 may be exposed to the outside of the housing 3000 .

On the other hand, as shown in FIG. 3 , when the point where the ends of the plurality of connection parts 2210 meet each other is defined as the first predetermined point X1, the inlet 2220 through which the gas is supplied to the first predetermined point X1. ) can be formed. At this time, gas may be supplied to the inlet 2220 through the hose-shaped supply line 4200 in the direction of one side (bottom) of the housing 3000 facing the unmanned aerial vehicle 1000 (the supply line 4200 is the housing). (3000) may pass through a through hole formed in one side (bottom) direction). Here, since the housing 3000, the first assembly member 3100) has a certain depth, when the first predetermined point X1 at which the inlet 2220 is formed is coupled to one side (bottom) of the housing 3000, the airbag ( When the 2000) expands, it may be caught on the side of the housing 3000 (the first assembly member 3100). In order to prevent this, the support part 3300 for separating the first predetermined point X1 at which the inlet 2220 is formed from one side (bottom) of the housing 3000 may be provided. The first predetermined point X1 of the airbag 2000 is spaced apart from one side (bottom) of the housing 3000 by the support 3300, so that the airbag 2000 is the housing 3000, the first assembly member 3100) It can inflate without being caught on the side of the Specifically, the support part 3300 may include an extension part 3310 and a fastening part 3320 . Here, three or more extension parts 3310 extend from the airbag 2000 in the direction of one side (floor) of the housing 3000 , and the fastening part 3320 may be bent and extended from the end of the extension part 3310 . there is. In this case, the fastening part 3320 may be fixed to the vicinity of one side (bottom) of the housing 3000 with a screw or the like. Accordingly, in a state where it is fixed to the housing 3000 by the fastening part 3320 , the second predetermined point X2 of the airbag 2000 is spaced apart from one side (floor) of the housing 3000 by the extension part 3310 . can be

In addition, when the airbag 2000 includes the first airbag 2000a and the second airbag 2000b, the housing 3000 is a first airbag 2000a disposed on the upper side of the unmanned aerial vehicle 1000 for storing the first airbag 2000a. The first housing 3000a and the second housing 3000b for storing the second airbag 2000b disposed below the unmanned aerial vehicle 1000 may be included. In this case, the first housing 3000a and the second housing 3000b are basically similar. However, as shown in FIG. 1 , the first housing 3000a is formed in a rectangular shape based on a plan view, while the second housing 3000b has a depression 3400 with one side recessed inward based on the plan view. It may be formed in a rectangle including A camera 1200 coupled to the unmanned aerial vehicle 1000 may be disposed in the depression 3400 of the second housing 3000b. Accordingly, it is possible to prevent interference with the camera 1200 and the like while the second housing 3000b is disposed on the lower side of the unmanned aerial vehicle 1000 .

Additionally, it may include a gas supply unit 4000 for supplying gas to the airbag 2000 . Here, the gas supply unit 4000 may be provided separately from the airbag 2000 and the housing 3000 to be coupled to the unmanned aerial vehicle 1000 . Specifically, as shown in FIG. 3 , the gas supply unit 4000 may include a storage unit 4100 , a supply line 4200 , and an auxiliary housing 4400 . In this case, the storage unit 4100 is to store and release gas, and may be a cartridge for compressing and storing carbon dioxide or argon. In addition, the supply line 4200 connects the storage 4100 and the inlet 2220 of the airbag 2000 to deliver gas from the storage 4100 to the airbag 2000 . In addition, the auxiliary housing 4400 is disposed on one side (rear side) of the unmanned aerial vehicle 1000, and a storage unit 4100 is provided therein. That is, the storage unit 4100 is stored in the auxiliary housing 4400 separate from the housing 3000, and the gas stored in the storage unit 4100 is stored in the housing 3000 through the supply line 4200. The airbag ( 2000) is supplied. At this time, a through hole may be formed in one side (bottom) of the housing 3000 so that the supply line 4200 can pass therethrough.

As described above, since the storage unit 4100 (cartridge) is stored separately in the auxiliary housing 4400 instead of the housing 3000 in which the airbag 2000 is stored, the design of the airbag 2000 or the housing 3000 is free, There is no fear that the storage unit 4100 (cartridge) prevents the airbag 2000 from being inflated.

In addition, when the airbag 2000 includes the first airbag 2000a and the second airbag 2000b, the gas supply unit 4000 further includes a connector 4300 and first and second supply lines 4200a and 4200b. can do. Here, the connector 4300 is connected to the storage unit 4100 and branches the flow path into two. At this time, the first supply line 4200a connects one flow path of the connector 4300 and the first airbag 2000a to deliver gas from the connector 4300 to the first airbag 2000a. Similarly, the second supply line 4200b connects another flow path of the connector 4300 and the second airbag 2000b to deliver gas from the connector 4300 to the second airbag 2000b. That is, by using the connector 4300 that branches the flow path into two and the first and second supply lines 4200a and 4200b, the gas is supplied from one storage unit 4100 (cartridge) to the two airbags 2000a and 2000b at once. is to supply Therefore, since only one storage unit 4100 (cartridge) is required, it is possible to lighten the weight, and as a result, it is possible to minimize the influence on the motility of the unmanned aerial vehicle 1000 .

Meanwhile, the airbag 2000 must be inflated when the unmanned aerial vehicle 1000 falls. Accordingly, a fall detection sensor for detecting the fall of the unmanned aerial vehicle 1000 may be provided. When the unmanned aerial vehicle 1000 falls, the airbag 2000 may be inflated by detecting this by the fall detection sensor. However, it is not necessarily necessary to inflate the airbag 2000 by detecting the fall of the unmanned aerial vehicle 1000 with a fall detection sensor, and the airbag 2000 may be inflated by a controller wirelessly if necessary.

The airbag for a drone according to the present embodiment includes the airbag 2000 that surrounds the unmanned aerial vehicle 1000 from the top and bottom, so that it can effectively absorb the impact even in the event of a fall. Accordingly, there is an advantage in that it is possible to prevent personal accidents, damage to the aircraft, damage to cameras and attached equipment, loss of important data such as captured images, and ground accidents such as vehicles.

The features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Prior to this, the terms or words used in the present specification and claims should not be construed as conventional and dictionary meanings, and the inventor may properly define the concept of the term to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

1000: drone 1100: rotor blades
1200: camera 2000: airbag
2000a: first airbag 2000b: second airbag
2100: first expansion part 2200: second expansion part
2210: connection 2220: inlet
3000: housing 3000a: first housing
3000b: second housing 3100: first assembly member
3200: second assembly member 3300: support
3310: extension part 3320: fastening part
4000: gas supply unit 4100: storage unit
4200: supply line 4200a: first supply line
4200b: second supply line 4300: connector
4400: auxiliary housing R1: first radius
R2: second radius C1: center of first radius
C2: center of the second radius X1: first predetermined point
X2: second predetermined point

Claims (13)

an airbag disposed on at least one of an upper side and a lower side of an unmanned aerial vehicle including a rotating blade, and which expands when the unmanned aerial vehicle falls;
including,
The airbag is
a first expansion part formed in a loop shape; and
It includes a plurality of connecting parts extending from the inside of the first expanded part, and a second expanded part where ends of the plurality of connecting parts meet each other,
When defining a point of the first expansion part from which the connection part extends as a second predetermined point,
The airbag for a drone in which the thickness of the first inflatable part increases as the distance from the second predetermined point increases.
The method according to claim 1,
When defining a point where the ends of the plurality of connecting parts meet each other as a first predetermined point,
The first predetermined point is an airbag for a drone disposed at the center of the first inflatable part.
The method according to claim 1,
If the number of the connecting portion is N (N is a natural number), the angle between the two adjacent connecting portions is 360/N° for a drone airbag.
The method according to claim 1,
When defining a point where the ends of the plurality of connecting parts meet each other as a first predetermined point,
An airbag for a drone in which an inlet is formed at the first predetermined point, gas is supplied through the inlet, and the gas is delivered in the order of the second inflation unit and the first inflation unit.
The method according to claim 1,
When defining a point of the first expansion part from which the connection part extends as a second predetermined point,
An outside of the first expansion part has a first radius between two adjacent second predetermined points, an inside of the first expansion part between two adjacent second predetermined points has a second radius, and the first The center of the radius is closer to the first inflatable than the center of the second radius, and the first radius is smaller than the second radius.
delete The method according to claim 1,
The airbag is
a first airbag disposed above the unmanned aerial vehicle; and
a second airbag disposed below the unmanned aerial vehicle;
Airbags for drones comprising:
The method according to claim 1,
The airbag is
An airbag for a drone provided inside a housing disposed on at least one of an upper side and a lower side of the unmanned aerial vehicle.
9. The method of claim 8,
The housing is
When the airbag is inflated, it is opened to expose the airbag to the outside of the housing.
9. The method of claim 8,
When defining a point where the ends of the plurality of connecting parts meet each other as a first predetermined point,
An inlet is formed at the first predetermined point,
Gas is supplied to the inlet from one side of the housing facing the unmanned aerial vehicle,
a support part for separating the first predetermined point where the inlet is formed from one side of the housing;
Airbags for drones further comprising a.
11. The method of claim 10,
The support part,
an extension portion extending from the airbag in a direction toward one side of the housing; and
a fastening part bent and extended from an end of the extension part;
including,
The fastening portion is an airbag for a drone fixed to the housing.
The method according to claim 1,
a storage unit for storing gas;
a supply line for transferring gas from the storage unit to the airbag; and
an auxiliary housing disposed on one side of the unmanned aerial vehicle and having the storage unit therein;
Airbag for drones further comprising a gas supply unit comprising a.
8. The method of claim 7,
a storage unit for storing gas;
a connector connected to the storage unit and branching the flow path into two;
a first supply line for delivering gas from the connector to the first airbag;
a second supply line for delivering gas from the connector to the second airbag; and
an auxiliary housing disposed on one side of the unmanned aerial vehicle and having the storage unit therein;
Airbag for drones further comprising a gas supply unit comprising a.

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