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公开(公告)号：US11845535B2
公开(公告)日：2023-12-19
申请号：US17459772
申请日：2021-08-27
发明人： Jae Young Choi , Sang Hyun Jung , Chung Sik Yim , Kyu Hoon Cho
IPC分类号： B64C11/28
CPC分类号： B64C11/28
摘要： A propeller apparatus of an air mobility may include blades configured for being folded or unfolded in a response to flight situation of the air mobility, so that energy efficiency of the air mobility is improved and flight distance is increased by efficient use of the plurality of blades in each flight situation. Furthermore, as a pitching motion of the plurality of blades is performed in addition to a folding or unfolding motion of the plurality of blades, flight performance is improved.
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公开(公告)号：US11608164B2
公开(公告)日：2023-03-21
申请号：US17411962
申请日：2021-08-25
发明人： Jae Young Choi , Sang Hyun Jung , Chung Sik Yim , Kyu Hoon Cho
IPC分类号： B64C27/52
摘要： A tilting system for a propeller of an aerial vehicle, may include a propeller provided in front of the opening portion of the housing and configured to be selectively tilted with respect to the housing; a link assembly provided in the internal space of the housing, a first end portion of which is connected to the housing and a second end portion of which is connected to the propeller, and configured to tilt up or tilt down the propeller as the link assembly is extended from the housing or retracted into the housing; and an actuator coupled to the link assembly and configured to provide power for extension or retraction to the link assembly.
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公开(公告)号：US11661174B2
公开(公告)日：2023-05-30
申请号：US17317143
申请日：2021-05-11
发明人： Sang Hyun Jung , Kyu Hoon Cho , Chung Sik Yim , Jae Young Choi
IPC分类号： B64C11/28
CPC分类号： B64C11/28
摘要： A retractable propeller apparatus of an air mobility vehicle has a structure enabling a propeller to be exposed or hidden depending on whether the air mobility vehicle is in a high-speed flight or a parking position. In particular, the retractable propeller apparatus includes: a base having a mount provided with a space; a propeller unit disposed on the mount and configured to generate a flow of air; a cover configured to close the space and be movable in the top-bottom direction with respect to the mount; and a lift unit disposed on the mount connected to the cover, and configured to move the cover. The cover selectively closes or opens the space based on an operation of the lift unit such that the propeller unit is operable.
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公开(公告)号：US20220185450A1
公开(公告)日：2022-06-16
申请号：US17459772
申请日：2021-08-27
发明人： Jae Young Choi , Sang Hyun Jung , Chung Sik Yim , Kyu Hoon Cho
IPC分类号： B64C11/28
摘要： A propeller apparatus of an air mobility may include blades configured for being folded or unfolded in a response to flight situation of the air mobility, so that energy efficiency of the air mobility is improved and flight distance is increased by efficient use of the plurality of blades in each flight situation. Furthermore, as a pitching motion of the plurality of blades is performed in addition to a folding or unfolding motion of the plurality of blades, flight performance is improved.
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公开(公告)号：US20220144125A1
公开(公告)日：2022-05-12
申请号：US17307516
申请日：2021-05-04
发明人： Kyu Hoon CHO , Yong Hyun Nam , Chung Sik Yim , Dae Hee Lee , Sang Hyun Jung , Jae Seung Lee , Jae Young Choi
摘要： A system for replacing a battery of a mobility is proposed and includes: a battery mounting part provided on an outer surface of a mobility and having a mounting space defined therein, the mounting space being open to an outside, with a battery mounted in the mounting space, and a battery replacement module having a new battery provided therein and mounting the new battery in the mounting space of the battery mounting part after removing the existing battery to be replaced by rotating the new battery and the existing battery together when the battery replacement module approaches the battery mounting part of the mobility.
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公开(公告)号：US11325692B1
公开(公告)日：2022-05-10
申请号：US17317080
申请日：2021-05-11
发明人： Jae Young Choi , Sang Hyun Jung , Kyu Hoon Cho , Chung Sik Yim
摘要： A propeller folding apparatus of an air mobility vehicle deploys or folds propeller blades depending on the flying state of the air mobility vehicle. The propeller blades are efficiently used depending on the flying state of the air mobility vehicle. The energy efficiency and the ferry range of the air mobility vehicle are increased.
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公开(公告)号：US11905011B2
公开(公告)日：2024-02-20
申请号：US17378693
申请日：2021-07-17
发明人： Sang Hyun Jung , Kyu Hoon Cho , Chung Sik Yim , Jae Young Choi
CPC分类号： B64C3/546 , B64C3/56 , B64C9/22 , B64C13/32 , B64C29/0008
摘要： An air mobility may include a wing portion extending from a fuselage of the air mobility; a folded portion provided at an edge portion of the wing portion, configured to extend from the wing portion to form a part of the wing portion during unfolding of the folded portion, and configured to move to overlap with the wing portion during folding of the folded portion, so that an area of air resistance in a vertical direction of the wing portion is reduced; an actuator connected to the folded portion and configured to provide power to the folded portion, so that the folded portion is unfolded or folded to the wing portion; and a controller connected to the actuator and configured to control the actuator, so that the folded portion is folded during vertical takeoff or landing of the fuselage, and configured to control the actuator to unfold the folded portion during cruising of the fuselage.
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公开(公告)号：US11975855B2
公开(公告)日：2024-05-07
申请号：US17408262
申请日：2021-08-20
发明人： Chung Sik Yim , Yong Hyun Nam , Jae Young Choi , Sang Hyun Jung , Dae Hee Lee , Jae Seung Lee , Kyu Hoon Cho
CPC分类号： B64D27/40 , B64C27/50 , B64C2211/00 , B64D27/402 , B64D27/404
摘要： A propulsion module of an air mobility vehicle may include a door provided in the housing and opening or closing the opening portion of the housing by a sliding motion of the door; a propeller for providing propulsion to the air mobility vehicle; a link assembly having a first end portion connected to the housing and a second end portion connected to the propeller to pull the propeller into the internal space of the housing through the opening portion or pull the propeller outside the internal space through the opening portion; and a door opening and closing portion coupled to the door and configured for providing an opening and closing force to the door according to an inward-pulling motion or an outward-pulling motion of the propeller.
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公开(公告)号：US11711001B2
公开(公告)日：2023-07-25
申请号：US17388647
申请日：2021-07-29
发明人： Hyun Seok Hong , Sang Hyun Jung , Hee Kwang Lee
CPC分类号： H02K15/024 , H02K1/06 , H02K3/32
摘要： A is constructed such that upper and lower shafts, which are coaxial, are rotated in opposite directions using a single coil winding, simplifying the structure of the motor apparatus and reducing the numbers of sensors and controllers to be mounted thereon.
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公开(公告)号：US20220194550A1
公开(公告)日：2022-06-23
申请号：US17378693
申请日：2021-07-17
发明人： Sang Hyun Jung , Kyu Hoon Cho , Chung Sik Yim , Jae Young Choi
IPC分类号： B64C3/54
摘要： An air mobility may include a wing portion extending from a fuselage of the air mobility; a folded portion provided at an edge portion of the wing portion, configured to extend from the wing portion to form a part of the wing portion during unfolding of the folded portion, and configured to move to overlap with the wing portion during folding of the folded portion, so that an area of air resistance in a vertical direction of the wing portion is reduced; an actuator connected to the folded portion and configured to provide power to the folded portion, so that the folded portion is unfolded or folded to the wing portion; and a controller connected to the actuator and configured to control the actuator, so that the folded portion is folded during vertical takeoff or landing of the fuselage, and configured to control the actuator to unfold the folded portion during cruising of the fuselage.
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