KR101660465B1 - Motor boom of multi copter - Google Patents

Motor boom of multi copter Download PDF

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Publication number
KR101660465B1
KR101660465B1 KR1020150125586A KR20150125586A KR101660465B1 KR 101660465 B1 KR101660465 B1 KR 101660465B1 KR 1020150125586 A KR1020150125586 A KR 1020150125586A KR 20150125586 A KR20150125586 A KR 20150125586A KR 101660465 B1 KR101660465 B1 KR 101660465B1
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KR
South Korea
Prior art keywords
boom
motor
copter
coupler
main body
Prior art date
Application number
KR1020150125586A
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Korean (ko)
Inventor
양희철
Original Assignee
주식회사 그리폰 다이나믹스
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Priority to KR1020150125586A priority Critical patent/KR101660465B1/en
Application granted granted Critical
Publication of KR101660465B1 publication Critical patent/KR101660465B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C39/00—Aircraft not otherwise provided for
    • B64C39/02—Aircraft not otherwise provided for characterised by special use
    • B64C39/024—Aircraft not otherwise provided for characterised by special use of the remote controlled vehicle type, i.e. RPV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/08—Helicopters with two or more rotors
    • B64C2201/024—
    • B64C2201/108—
    • B64C2700/6294—

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The present invention relates to a motor boom of a multi-copter which can be easily carried and carried. The motor boom is extended from the main body of the multi-copter to the outside, and a propeller is rotatably provided at an end thereof. The motor boom being detachably attached to one side of the main body and extending to the outside of the main body; An outer boom in which one end is detachably coupled to the end of the inner boom and the propeller is rotatably installed at the other end; So that the motor boom of the multi-copter can be separated and combined so that the multi-copter can be easily carried and carried, and the vibration and shock transmitted to the coupler provided in the separate motor boom can be absorbed, So that the coupler can be protected even when the take-off and landing is repeatedly performed.

Description

MOTOR BOOM OF MULTI COPTER "

The present invention relates to a multi-copter, and more particularly, to a multi-copter motor boom in which components such as a motor and a propeller are installed.

Multicopter drones have been mainly used for military purposes. Recently, Multicopter drones have been utilized in various fields such as goods delivery, disaster relief, broadcasting and leisure, in addition to military use due to various advantages such as simplicity, promptness and economical efficiency.

Recently, such a multi-copter drones (unmanned aerial vehicles) have been commercialized, and drones are used in various fields such as camera shooting. The drone is a small unmanned aerial vehicle and it is general that the operation signal of the operator is received by radio and operated manually.

On the other hand, as electronic commerce becomes popular, transportation companies are transporting goods depending on typical conventional transportation means. Recently, however, attempts have been made to transport small or bulky items using such a multi-copter drones.

Small or bulky items can be transported using multi-copter drones, but large or bulky items can not be transported because of the limited lifting capacity of small multi-copter drones.

In addition, since there is a limit to a small multi-copter dron for fire or marine rescue, a large multi-copter dron with a large floating capacity is required, and thus a large multi-copter dron is being developed.

However, in the case of such a large multi-copter drone, there is a problem that it is difficult to carry or carry because it is bulky and has a large weight.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a multi-copter motor boom which can be separated and combined, thereby facilitating the transportation and carrying of the multi-copter, The present invention provides a motor boom of a multi-copter that can absorb vibrations and shocks, thereby protecting the coupler even when the large multi-copter repeatedly takes off and land, thereby enabling smooth operation.

In order to achieve the above object, the motor boom of the multi-copter is extended from the main body of the multi-copter to the outside, and a propeller is rotatably provided at the end thereof to move the multi-copter to a desired position in a floating state Wherein the motor boom is detachably mounted on one side of the main body.

The motor boom includes an inner boom attached to one side of the main body and extending to the outside of the main body, an outer boom having one end detachably coupled to the end of the inner boom and the other end rotatably provided with the propeller, .

The outer boom and the inner boom, which are mutually combined, are formed with a male coupler which is formed in a shape symmetrical to the circumferential surface of the end portion and is fixedly coupled to the end portion and has a step portion formed in its end face, And one may be provided with a female coupler formed in a shape corresponding to the male coupler and having the step portion inserted therein.

In addition, a coupling member having a coupling hole formed on the stepped surface of the male coupler is formed in a protruding manner. The coupling coupler is formed with a receiving groove into which the coupling member is inserted and received, An insertion hole into which a fastening bolt can be inserted can be formed.

In addition, a flow preventive member is protruded on one side of the male coupler, and the flow preventing member is inserted into one side of the female coupler to prevent the inner boom and the outer boom from flowing together when they are engaged. May be provided.

A female connector having a plurality of female terminals is coupled to the inner side of the male coupler so as to transmit power and electrical signals, and a female connector having a plurality of female connectors is fastened to the inner side of the female coupler. .

In addition, a buffer portion may be provided in a region where the PC ratio is in contact with the male coupler so that the PC and the female terminal can be buffered when vibrations and impacts are transmitted.

In addition, the buffer portion may be formed of a silicon O-ring damper formed into a ring-shaped silicon material.

Further, the silicone O-ring damper may be fixed between the PCB and the male coupler by passing a separate fastening bolt through the plate surface of the PCB and the male coupler to the silicone O-ring damper.

In addition, when the inner boom and the outer boom are attached to the main body of the multi-copter, the vertical width of the longitudinal section is formed to be relatively longer than the lateral width so that the inner boom and the outer boom can cope with bending, twisting and shearing stress .

In addition, a partition wall disposed along the transverse direction of the motor boom may be integrally formed in the central region of the motor boom so as to divide the internal space of the motor boom in the height direction.

The central region of the barrier rib may be formed to have a relatively thicker thickness than both side edges.

As described above, the motor boom of the multi-copter according to the present invention has the effect of facilitating the transportation and carrying of the multi-copter by providing the motor boom of the multi-copter to be detachable and attachable.

In addition, vibration and shock transmitted to the coupler provided on the separate type motor boom are absorbed, so that even if the large multi-copter repeatedly takes off and land, the coupler can be protected and smooth operation can be performed.

FIG. 1 is a perspective view showing the structure of a large multi-copter equipped with a motor boom of a multi-copter according to an embodiment of the present invention,
FIG. 2 is a perspective view showing a structure in which the separated type motor boom of FIG. 1 is coupled,
FIG. 3 is an exploded perspective view of the inner boom in a state in which the separate type motor boom of FIG. 1 is disassembled,
FIG. 4 is an exploded perspective view of the outer boom in a state in which the separate-type motor boom of FIG. 1 is disassembled,
5 is a cross-sectional view taken along line V-V in Fig.

Hereinafter, a motor boom of a multi-copter according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the structure of a large multi-copter equipped with a motor boom of a multi-copter according to an embodiment of the present invention, FIG. 2 is a perspective view showing a structure in which a separate motor boom of FIG. 3 is an exploded perspective view illustrating the inner boom in a state in which the separated boom of FIG. 1 is disassembled. FIG. 4 is a cross-sectional view of the outer boom of FIG. And FIG. 5 is a sectional view taken along the line V-V 'in FIG.

As shown in these drawings, the motor boom of the multi-copter according to the embodiment of the present invention is constructed such that the motor boom is extended from the main body of the multi-copter to the outside and the propeller is rotatably provided at the end, And the motor boom is detachably attached to one side of the main body and extends to the outside of the main body, and an inner boom (100) And an outer boom 200 having one end detachably coupled and the other end rotatably mounted on the propeller.

The motor boom is arranged in a plurality of symmetrical shapes on the outer surface of the multi-copter body, and is equipped with a propeller that can lift the multi-copter at its ends.

The motor boom of the multi-copter according to an embodiment of the present invention is a motor boom provided in a large multi-copter, and can be selectively detachably attached to a main body of a large multi-copter so that the large multi- desirable.

As described above, the motor boom includes an inner boom 100 detachably provided at one side of the body of the multi-copter, and an outer boom 100 selectively detachably attached to an end of the inner boom 100 .

5, when the inner boom 100 and the outer boom 200 are attached to the main body of the multi-copter, the inner boom 100 and the outer boom 100 are bent and twisted , The longitudinal width of the longitudinal section is preferably longer than the lateral width so as to cope with the shearing stress.

In the case of the twist and shear stress, the vertical width of the motor boom is increased compared with the conventional structure, and the overall cross-sectional area is increased, so that the twist and shear stress are increased, thereby improving the structural stability.

In case of bending stress, it is caused by the load applied to the motor boom due to the components such as the motor and the propeller installed at the end of the motor boom. Such bending stress acts on the bending moment acting on the end of the motor boom and the distance from the neutral axis The vertical width of the motor boom longitudinal section is relatively longer than the lateral width, and the vertical width increases, so that the bending moment and the distance from the neutral axis of the longitudinal section are increased, thereby increasing the structural stability.

In order to further improve the structural stability of the motor boom, the inner boom 100 and a partition wall 200 dividing the inner space of the outer boom 200 in the height direction are formed in the central region of the inner boom 100 and the outer boom 200, (201) is formed in the transverse direction.

The central region of the partition 201 is formed to have a relatively thicker thickness than both side edges, thereby improving the rigidity of the motor boom.

Stiffness, bending, twisting, and shearing stress of the motor boom are further improved due to the partition wall 201, so that the components such as the motor 2 and the propeller 3 mounted on the motor boom can be more firmly and stably supported .

A coupling member 101 is provided at an end region of the inner boom 100 coupled to the main body 1 of the multiprocessor so that the main body 1 and the inner boom 100 of the multi- .

The end portion of the inner boom 100 coupled to the outer boom 200 is formed to be symmetrical with the end circumferential surface of the inner boom 100 and is fixedly coupled to the end portion of the inner boom 100, A male coupler 110 in which a jaw portion 111 is formed is provided.

The male coupler 110 has a groove formed in a shape corresponding to the end surface of the inner boom 100 so that the end of the inner boom 100 is inserted into the groove formed in the male coupler 110, The coupling between the inner boom 100 is achieved.

The stepped portion 111 protruding from the end plate of the male coupler 110 is inserted into the female coupler 210 fastened to the male coupler 110, And the outer boom 200 are firmly coupled to each other.

A coupling member 112 having a coupling hole 112a is protruded from the surface of the step portion 111 of the male coupler 110. The coupling member 112 is inserted into the receiving groove 240 formed in the coupling coupler 210, And then fixedly connected by fastening bolts (not shown).

The flow preventive member 120 is protruded from one side of the male coupler 110. The flow preventive member 120 is inserted into the insertion member 220 formed on one side of the female coupler 210, It is preferable to prevent the outer boom 200 from flowing.

A PCB 130 having a plurality of female terminals 131 is coupled to the inner side of the male coupler 110 to transmit power and electrical signals.

The female terminal 131 provided in the PC 130 includes a six-terminal connector for electrically connecting two sets of three-phase main power to an electronic transmission, or a six-terminal connector for connecting two sets of three main power sources and an electronic transmission .

The cantilever 140 is provided at a region where the PCB 130 is in contact with the male coupler 110 and is capable of absorbing vibrations and shocks when the cam 130 is in contact with the female terminal 131 of the PCB 130 .

The buffer 140 is provided with a silicon O-ring damper 141 formed in a ring shape of a silicone material so that another fastening bolt 132 is passed through the silicone O-ring damper 140 in a state of being in contact with the lower surface of the circuit board 130 The end of the fastening bolt 132 is fastened to the fastening member 113 formed inside the step portion 111 of the male coupler 110 to be engaged.

The tightening bolt 132 is not tightened tightly to the fastening member 113 so that the silicone O-ring damper 141 can absorb an impact when an impact is transmitted from the outside to the PCB 130 or the female terminal 131 It is preferable to tighten it so as to have a margin that can be elastically deformed.

Since vibration and shock transmitted from the outside can be buffered by the silicone O-ring damper 141, the seizure of the soldering portion of the PCB 130 and the arm terminal 131, which may be caused by vibration during flight or impact upon landing It is possible to actively prevent change and contact error.

The outer boom 200 is extended at a predetermined length to increase the overall length of the motor boom so that one end thereof is fastened to the end of the inner boom 100 and the other end of the outer boom 200 is connected to the motor 2 and the propeller 3 .

One end of the outer boom 200 is formed in a shape corresponding to the male coupler 110 so that the outer boom 200 can be attached to the male coupler 110 provided at the end of the inner boom 100, 111 are inserted into the female coupler 210.

The fastening between the inner boom 100 and the outer boom 200 can be further strengthened since the step portion 111 is inserted into the female coupler 210.

The male coupler 210 is formed with a receiving groove 240 in which a coupling member 112 formed in the male coupler 110 is inserted and received and a coupling member 112 is formed at one side of the receiving groove 240. And an insertion hole 211 into which a fastening bolt (not shown) can be inserted is formed in the fastening hole 112a.

In addition, a flow preventive member 120 formed in the male coupling 110 is inserted into one side of the female coupling 210 to prevent insertion of the inner boom 100 and the outer boom 200, Member 220 is provided.

A female connector 230 having a plurality of male terminals 231 to be coupled with female terminals 131 is fastened to the inner side of the female coupler 210 having such a configuration.

The male terminal 231 included in the PCB 230 is provided with a six-terminal connector for electrically connecting two sets of three-phase main power to an electronic transmission, or a six-terminal connector for connecting two sets of three main power supplies and an electronic transmission And is interlocked with the female terminal 131, so that the electric signal and the power source are transmitted to the motor side.

The PCB 230 is fastened to the fastening member 241 provided on one side of the receiving groove 240 with a separate fastening bolt 232 passing through the plate surface of the PCB 230, Lt; / RTI >

In the area where the PCB 230 is in contact with the male coupler 210 as in the case of the male coupler 110, when the vibration and impact are transmitted to the male terminal 231 provided on the PCB 230 and the PCB 230, A separate silicon O-ring damper (not shown) may be further provided.

The vibration and shock transmitted from the outside can be buffered by the silicone O-ring damper 141 provided on the male coupler 110 side and the silicone O-ring damper (not shown) provided on the female coupler 210, Which is caused by an impact at the time of landing, and a solder joint between the PCB 230 and the female terminal 231, as well as a contact error.

As described above, the motor boom of the multi-copter according to an embodiment of the present invention is provided so that the motor boom of the multi-copter can be separated and combined so that the multi-copter can be easily carried and carried, The vibration and the shock transmitted to the coupler are absorbed so that the coupler can be protected even when the large multi-copter repeatedly takes off and land, thereby enabling smooth operation.

As described above, the motor boom of the multi-copter of the present invention has been described through the preferred embodiments. However, it should be understood that the technical scope of the present invention is not limited thereto.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. There is no saying.

100: inner boom 110: male coupler
111: step portion 112: fastening member
112a: fastening hole 120: flow preventing member
130: PCB 131: female terminal
200: outer boom 210: female coupler
211: insertion hole 220: insertion member
230: Fee 240: Receiving groove

Claims (12)

A motor boom of a multi-copter which is extended from the main body (1) of a multi-copter and is rotatably provided at an end thereof so that the multi-copter is moved to a desired position in a floating state,
The motor boom is detachably mounted on one side of the main body 1,
The motor boom includes an inner boom 100 attached to one side of the main body 1 and extending to the outside of the main body 1, and a motor boom 100 having one end detachably coupled to the end of the inner boom 100, And an outer boom (200) having a propeller rotatably mounted thereon,
The outer boom 200 and the inner boom 100, which are coupled to each other, are symmetric with the circumferential surface of the end portion, and are fixedly coupled to the end portion, And a male coupler 210 formed in a shape corresponding to the male coupler 110 and having the stepped portion 111 inserted therein. Motor boom. delete delete The method according to claim 1,
A coupling member 112 having a coupling hole 112a is protruded from the surface of the step portion 111 of the male coupler 110. The coupling member 112 is inserted into the coupling coupler 210, The motor boom of claim 1, wherein the receiving groove (240) is recessed, and an insertion hole (211) into which the fastening bolt is inserted is formed at one side of the receiving groove (240). The method according to claim 1,
A flow preventive member 120 protrudes from one side of the male coupler 110 and the flow preventive member 120 is inserted into one side of the female coupler 210 to connect the inner boom 100 and the outer boom 200) is provided with an insertion member (220) capable of preventing mutual flow at the time of engagement. The method according to any one of claims 1, 4, and 5,
A female connector 130 having a plurality of female terminals 131 is coupled to the male coupler 110 so as to transmit power and electrical signals and the male terminal 131 And a plurality of male terminals (231) fastened to the plurality of male terminals (231) are fastened to the motor boom of the multi-copter. The method according to claim 6,
The buffer 130 may be provided at a region where the PCB 130 is in contact with the male coupler 110 so that vibration and impact can be transmitted to the PCB 130 and the female terminal 131 Features a multi-copter motor boom. 8. The method of claim 7,
Wherein the buffer part (140) is a silicone O ring damper (141) formed in a ring shape of a silicon material. 9. The method of claim 8,
The silicone O-ring damper 141 penetrates the plate 130 of the PCB 130 and a separate bolt fastened to the male coupler 110 passes through the silicone O-ring damper 141, The motor boom of the multi-copter is characterized in that it is fixed between couplers (110). The method according to claim 1,
When the inner boom 100 and the outer boom 200 are attached to the main body 1 of the multi-copter, the inner boom 100 and the outer boom 200 are designed to be able to cope with bending, twisting, And the vertical width of the vertical cross section is formed to be longer than the horizontal width. 11. The method of claim 10,
And a partition wall disposed along a transverse direction of the motor boom so as to divide the internal space of the motor boom in a height direction is integrally formed in a central region of the motor boom. 12. The method of claim 11,
And the central region of the partition wall is formed to have a relatively thicker thickness than both side edges thereof.





KR1020150125586A 2015-09-04 2015-09-04 Motor boom of multi copter KR101660465B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019142961A1 (en) * 2018-01-18 2019-07-25 한화정밀기계 주식회사 Boom coupling device for unmanned flying object and unmanned flying object using same
CN110621250A (en) * 2016-12-30 2019-12-27 Wing航空有限责任公司 Electrical system for unmanned aerial vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101042200B1 (en) * 2010-09-02 2011-06-16 드림스페이스월드주식회사 Unmanned flying vehicle made with pcb
US20130287577A1 (en) * 2012-04-11 2013-10-31 Singapore Technologies Aerospace Ltd. Rotor-arm assembly and a multi-rotorcraft

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101042200B1 (en) * 2010-09-02 2011-06-16 드림스페이스월드주식회사 Unmanned flying vehicle made with pcb
US20130287577A1 (en) * 2012-04-11 2013-10-31 Singapore Technologies Aerospace Ltd. Rotor-arm assembly and a multi-rotorcraft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110621250A (en) * 2016-12-30 2019-12-27 Wing航空有限责任公司 Electrical system for unmanned aerial vehicle
EP3562422A4 (en) * 2016-12-30 2020-09-09 Wing Aviation LLC Electrical system for unmanned aerial vehicles
WO2019142961A1 (en) * 2018-01-18 2019-07-25 한화정밀기계 주식회사 Boom coupling device for unmanned flying object and unmanned flying object using same

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