公开(公告)号：EP4387059A1

公开(公告)日：2024-06-19

申请号：EP22856054.6

申请日：2022-07-21

申请人： Amotech Co., Ltd.

发明人： LEE, Jeong Hoon ,  SONG, Chang Seob

IPC分类号： H02K5/22 ,  H02K1/20 ,  H02K1/14 ,  H02K3/28 ,  H02K1/04 ,  H02K3/50 ,  H02K5/10 ,  H02K5/04 ,  H02K7/00 ,  H02K9/22

CPC分类号： Y02T50/60 ,  H02K5/22 ,  H02K1/20 ,  H02K5/10 ,  H02K5/04 ,  H02K15/02 ,  H02K9/22 ,  H02K1/04 ,  H02K1/14 ,  H02K7/00 ,  H02K3/28 ,  H02K3/50

摘要： A stator having a bus bar structure that enhances assembly productivity and durability by adopting the bus bar structure comprises: a division type stator core in which a plurality of split cores are assembled in an annular shape; upper and lower insulators surrounding the outer circumference of teeth of the split cores; a stator coil composed of a plurality of core groups continuously wound onto three teeth for each phase; a plurality of bus bar brackets coupled to the insulators so as to bind two split cores; U-phase, W-phase, and V-phase bus bars on which a connection terminal to which a start terminal of each core group is connected is protruded; a common electrode bus bar on which a connection terminal to which an end terminal of each core group is connected is protruded; and a stator support that insulates between coils so as to integrate the plurality of split cores.

公开(公告)号：EP4329154A1

公开(公告)日：2024-02-28

申请号：EP22792024.6

申请日：2022-04-20

申请人： Amotech Co., Ltd.

发明人： LEE, Jeong Hoon ,  CHOI, Seung Jin

IPC分类号： H02K1/32 ,  H02K9/06 ,  H02K1/278 ,  H02K5/20 ,  H02K29/00 ,  H02K7/00 ,  B64D27/24 ,  B64D33/08 ,  H02K9/19

摘要： Provided are a rotor, and a propeller driving device and an aircraft using same, the rotor enabling effective heat dissipation in a water-cooling manner by using a water jacket having a refrigerant circulation circuit while realizing inner air cooling by using an air flow passage formed inside a motor. The propeller driving device includes: a housing in which an upper cover and a lower cover having a plurality of through holes are respectively coupled to an upper portion and a lower portion of a cylindrical case; a stator arranged inside the case; a rotor arranged at a distance from the stator; and a rotary shaft connected to the rotor through a plurality of bridges and having both ends rotatably supported by an upper bearing and a lower bearing positioned at respective centers of the upper cover and the lower cover, wherein inner cooling of a motor is formed by an air flow passage that passes through a plurality of through holes of the upper cover and the lower cover and a plurality of spaces formed between the plurality of bridges.

公开(公告)号：EP4333263A1

公开(公告)日：2024-03-06

申请号：EP22796044.0

申请日：2022-04-21

申请人： Amotech Co., Ltd.

发明人： LEE, Jeong Hoon ,  CHOI, Seung Jin

IPC分类号： H02K1/14 ,  H02K3/34 ,  H02K1/04 ,  H02K3/52 ,  H02K9/19 ,  H02K29/00 ,  H02K1/20 ,  H02K1/27 ,  H02K7/14 ,  B64D27/24

摘要： Provided are a stator, and a propeller driving device and an aircraft using the stator having an excellent heat dissipation effect by forming an insulator (or a bobbin) insulating spaces between a stator core and a coil as an insulating heat dissipation composite material having both heat dissipation performance and insulation performance. The propeller driving device includes: a radial gap type BLDC motor with an inner rotor-outer stator structure in which a rotor is placed in a circumferential shape with an air gap inside a stator; and a propeller installation bracket for mounting a propeller to a rotary shaft of the motor, wherein the stator includes: a stator core including an annular back yoke having a predetermined width so as to form a magnetic circuit and a plurality of teeth extending from the back yoke in a central direction; an insulator formed to surround an outer circumferential surface on which a coil is wound in each of the plurality of teeth; and a stator coil wound around an outer circumferential surface of the insulator in each of the plurality of teeth, wherein the insulator may be formed of an insulating heat dissipation composite material having both heat dissipation performance and insulation performance.