公开(公告)号：EP3739725A1

公开(公告)日：2020-11-18

申请号：EP19812524.7

申请日：2019-01-03

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： WU, Xiaopeng ,  WANG, Yibo ,  DAJAKU, Gurakuq

IPC分类号： H02K1/27

摘要： A motor rotor apparatus is provided. The motor rotor apparatus includes a rotor core (201) and a bonding element (401). The bonding element (401) is embedded in the rotor core (201). The rotor core (201) is provided with a first air sub-groove (301a), and the first air sub-groove (301a) includes a first tooth (3011a) and a first slot (3011b). The bonding element (401) includes a second tooth (4011a) and a second slot (4011b). The first tooth (3011a) is engaged with the second tooth (4011a), and the first slot (3011b) is engaged with the second slot (4011b). A structure that the bonding element (401) is engaged with the first air sub-groove (301a) in the rotor core (201) can effectively absorb centrifugal force generated when a rotor is rotated at a high speed. This significantly reduces stress on a rotor magnetic bridge, ensures robustness of the rotor that rotates at a high speed, and increases a speed of a motor as much as possible.

公开(公告)号：EP4336708A3

公开(公告)日：2024-10-16

申请号：EP23205799.2

申请日：2019-01-03

申请人： Huawei Technologies Co., Ltd.

发明人： WU, Xiaopeng ,  WANG, Yibo ,  DAJAKU, Gurakuq

IPC分类号： H02K1/27 ,  H02K1/30

摘要： A motor rotor apparatus is provided. The motor rotor apparatus includes a rotor core (201) and a bonding element (401). The bonding element (401) is embedded in the rotor core (201). The rotor core (201) is provided with a first air sub-groove (301a), and the first air sub-groove (301a) includes a first tooth (3011a) and a first slot (3011b). The bonding element (401) includes a second tooth (4011a) and a second slot (4011b). The first tooth (3011a) is engaged with the second tooth (4011a), and the first slot (3011b) is engaged with the second slot (4011b). A structure that the bonding element (401) is engaged with the first air sub-groove (301a) in the rotor core (201) can effectively absorb centrifugal force generated when a rotor is rotated at a high speed. This significantly reduces stress on a rotor magnetic bridge, ensures robustness of the rotor that rotates at a high speed, and increases a speed of a motor as much as possible.

公开(公告)号：EP4336708A2

公开(公告)日：2024-03-13

申请号：EP23205799.2

申请日：2019-01-03

申请人： Huawei Technologies Co., Ltd.

发明人： WU, Xiaopeng ,  WANG, Yibo ,  DAJAKU, Gurakuq

IPC分类号： H02K1/30

摘要： A motor rotor apparatus is provided. The motor rotor apparatus includes a rotor core (201) and a bonding element (401). The bonding element (401) is embedded in the rotor core (201). The rotor core (201) is provided with a first air sub-groove (301a), and the first air sub-groove (301a) includes a first tooth (3011a) and a first slot (3011b). The bonding element (401) includes a second tooth (4011a) and a second slot (4011b). The first tooth (3011a) is engaged with the second tooth (4011a), and the first slot (3011b) is engaged with the second slot (4011b). A structure that the bonding element (401) is engaged with the first air sub-groove (301a) in the rotor core (201) can effectively absorb centrifugal force generated when a rotor is rotated at a high speed. This significantly reduces stress on a rotor magnetic bridge, ensures robustness of the rotor that rotates at a high speed, and increases a speed of a motor as much as possible.