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公开(公告)号：EP4175122A1
公开(公告)日：2023-05-03
申请号：EP21875166.7
申请日：2021-09-13
摘要： A motor includes a first tooth (13G) and a second tooth (13H) circumferentially adjacent thereto with a coil (14) therearound having the same phase as that of a coil (14) around the first tooth (13G), and, a third tooth (13G) and a fourth tooth (13F) circumferentially adjacent thereto with a coil (14) therearound having a phase different from that of a coil (14) around the third tooth (13G). A circumferential end of a first flange portion (132GF), extending toward the second tooth (13H), of the first tooth (13G) to the circumferential center of an extending portion (131) of the first tooth (13G) is lower in magnetic resistance than a circumferential end of a second flange portion (132GR), extending toward the fourth tooth (13F), of the third tooth (13G) to the circumferential center of an extending portion (131) of the third tooth (13G).
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公开(公告)号：EP4020778A1
公开(公告)日：2022-06-29
申请号：EP20871232.3
申请日：2020-09-24
发明人： OKUYAMA, Yoshitaka , HIRANO, Masaki , NAKA, Shoujirou , SHIMIZU, Shunsuke , YASUDA, Yoshiki , YAMAGIWA, Akio
摘要： Techniques to reduce the d-axis inductance in a rotor are provided. According to one embodiment in the present disclosure, a rotor 20 includes permanent magnets 22 and 23 housed in magnet slots different from each other formed in an iron core 21, and arranged in series magnetically; and a flux barrier (cavity 24) provided to be close to an end in a direction orthogonal to a direction of a main magnetic flux, for each of the permanent magnets 22 and 23 arranged in series magnetically. Two instances of the flux barrier corresponding to the respective permanent magnets 22 and 23 arranged in series magnetically, communicate with each other. According to another embodiment in the present disclosure, a motor 1 includes the rotor 20 described above.
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