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公开(公告)号：US11843280B2
公开(公告)日：2023-12-12
申请号：US17215878
申请日：2021-03-29
发明人： Yong Ho Kim , Jae Woo Jung , Min Mo Koo , Ju Seong Yu , Jin Woo Choi , Joon Hyung Kim
CPC分类号： H02K1/165 , H02K3/12 , H02K3/48 , H02K15/026 , H02K15/065
摘要： A motor including a wound coil includes: a stator core, a cross-section of which has a ring-shape, extending in a longitudinal direction of the motor, the stator core including a plurality of teeth in the stator core, the plurality of teeth are spaced apart from each other in a circumferential direction of the stator core, and a plurality of slots arranged between the plurality of teeth; a coil extending in a longitudinal direction of the stator core and extends into the plurality of slots; and a coupling core, which includes shoes coupled to inner ends of the plurality of teeth and which is disposed inside the stator core so as to be integrally coupled to the stator core.
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公开(公告)号：US11670280B2
公开(公告)日：2023-06-06
申请号：US17550840
申请日：2021-12-14
发明人： Yeong Woo Seo , Ju Seong Yu , Jin Woo Choi
IPC分类号： G10K11/178 , G06N3/04
CPC分类号： G10K11/17883 , B64C2220/00 , G06N3/04 , G10K2210/1281 , G10K2210/3011 , G10K2210/3044 , G10K2210/3047 , G10K2210/3056
摘要： An urban air mobility (UAM) noise reduction system and method are provided, where the UAM noise reduction system includes a UAM configured to detect and to provide rotation per minute (RPM) information of a propeller and location coordinate information, and a noise canceling device configured to predict a noise canceling sound wave amplitude on the basis of the RPM information of the propeller and the location coordinate information received through the UAM and to output a noise canceling sound wave corresponding to the predicted noise canceling sound wave amplitude to the UAM.
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