| 发明名称 |
PERMANENT-MAGNET-EMBEDDED ELECTRIC MOTOR AND METHOD FOR MANUFACTURING SAME |
| 摘要 |
A permanent-magnet-embedded electric motor includes a stator having a coil wound on a stator core, and a rotor disposed rotatably inside the stator through a gap to an inner circumferential surface of the stator core. The rotor is provided with a rotor core formed of laminated steel plates having a plurality of magnet-embedding holes, and a permanent magnet housed and retained in each of the magnet-embedding holes. A thickness of the bridge portions formed between edges of the magnet-embedding holes and an outer circumference of the rotor core, and a thickness of a thinned link portion connecting adjoining two of the bridge portions are thinner than a thickness of the steel plates. |
| 申请公布号 |
US2016285326(A1) |
申请公布日期 |
2016.09.29 |
| 申请号 |
US201414778575 |
申请日期 |
2014.03.20 |
| 申请人 |
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. |
发明人 |
KAWAMURA KIYOMI;KAWASAKI HIROAKI;YOSHIKAWA YUICHI;KATO YASUSHI;KADO HARUHIKO;ASO NORITAKA |
| 分类号 |
H02K1/27;H02K1/02;H02K3/12;H02K15/03;H02K1/14;H02K1/16 |
主分类号 |
H02K1/27 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A permanent-magnet-embedded electric motor comprising:
a stator having a coil wound on a stator core; and a rotor disposed rotatably inside the stator via a gap to an inner circumferential surface of the stator core, wherein the rotor is provided with a rotor core formed of laminated steel plates having a plurality of magnet-embedding holes, and a permanent magnet housed and retained in each of the magnet-embedding holes, and a thickness of bridge portions formed between edges of the magnet-embedding holes and an outer circumference of the steel plates and a thickness of a thinned link portion connecting the bridge portions formed between adjoining two of the magnet-embedding holes are thinner than a thickness of the steel plates. |
| 地址 |
Osaka JP |
