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公开(公告)号：US20220126981A1
公开(公告)日：2022-04-28
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：US20220194554A1
公开(公告)日：2022-06-23
申请号：US17411981
申请日：2021-08-25
发明人： Jae Young CHOI , Sang Hyun JUNG , Chung Sik YIM , Kyu Hoon CHO
摘要： A foldable propeller for air mobility includes a link assembly including a plurality of links facilitating blades to be rotated around a hub as a moving portion vertically slides such that the blades are folded to each other or unfolded from each other.
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公开(公告)号：US20220144410A1
公开(公告)日：2022-05-12
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
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：US20220194572A1
公开(公告)日：2022-06-23
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：US20220169373A1
公开(公告)日：2022-06-02
申请号：US17375971
申请日：2021-07-14
发明人： Sang Hyun JUNG , Kyu Hoon CHO , Chung Sik YIM , Jae Young CHOI
摘要： A propeller tilting apparatus of air mobility may include a guide bracket configured to extend in forward and rearward directions; a sliding mechanism provided in the guide bracket to be movable in the forward and rearward directions, and including a driving motor configured to generate rotation force, and a power conversion unit connected to the guide bracket and configured to convert the rotation force of the driving motor into rectilinear motion of the sliding mechanism; and a tilting mechanism engaged to the power conversion unit to be moved together with the sliding mechanism, and including a propeller motor configured to be tilted in the upward and downward directions, and an angle conversion unit connected to the propeller motor and the power conversion unit to tilt the propeller motor using the rotation force transmitted from the power conversion unit.
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公开(公告)号：US20220185500A1
公开(公告)日：2022-06-16
申请号：US17379828
申请日：2021-07-19
发明人： Sang Hyun JUNG , Kyu Hoon Cho , Chung Sik Yim , Jae Young Choi
摘要： A lighting system for air mobility may include a light emitting unit provided on a boom or a propeller of the air mobility and configured to emit light toward a ground surface so that the light is projected onto a point directed toward the ground surface from the propeller or the boom; and a control unit electrically connected to the light emitting unit and configured to control light emitting modes of the light, emitted by the light emitting unit, based on operating modes of the air mobility or operating modes of the propeller.
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公开(公告)号：US20220200419A1
公开(公告)日：2022-06-23
申请号：US17388647
申请日：2021-07-29
发明人： Hyun Seok HONG , Sang Hyun JUNG , Hee Kwang LEE
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：US20220194611A1
公开(公告)日：2022-06-23
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
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：US20220103042A1
公开(公告)日：2022-03-31
申请号：US17188127
申请日：2021-03-01
发明人： Hyun Seok HONG , Woo Suk JUNG , Hyun Su CHO , Sang Hyun JUNG , Hee Kwang LEE
摘要： A motor apparatus has a cooling structure capable of effectively cooling the motor by inducing a fluid flow into the motor. In particular, the motor apparatus includes: a first part having a first flow path and a motor installed thereon; a second part having a second flow path and configured to be rotatably mounted on the first part and connected to the motor; and a turbine portion coupled to the second part and including disks stacked on one another forming spaces therebetween. When the turbine portion is rotated together with the second part, air is drawn through the first flow path or the second flow path and introduced into an opening hole of each of the disks, and the air is discharged into the spaces formed between the respective disks to cool the motor.
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