发明名称 |
Bi-permanent magnets in synchronous machines |
摘要 |
A rotor for an interior permanent synchronous machine. A rotor core structure includes an outer cylindrical wall juxtaposed to an air gap. A plurality of arcuately-shaped cavities is formed within the rotor core structure. The plurality of arcuately-shaped cavities is substantially concentrically layered with respect to an outer cylindrical wall of the rotor core structure. Each arcuately-shaped cavity extending between first and second end sections is juxtaposed to the outer cylindrical surface wall of the rotor structure and includes an intervening center section. A plurality of permanent magnets is inserted within the plurality of arcuately-shaped cavities. Each first end section retains a respective first permanent magnet having a first magnet field strength. Each second end section retains a respective second permanent magnet having the first magnetic field strength. Each center section retains a respective third permanent magnet having a second magnet field strength less than the first magnetic field strength. |
申请公布号 |
US8664822(B2) |
申请公布日期 |
2014.03.04 |
申请号 |
US201213483261 |
申请日期 |
2012.05.30 |
申请人 |
VYAS RAJEEV;NEHL THOMAS WOLFGANG;RAJALA ALEXANDRU;NAMUDURI CHANDRA S.;GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
VYAS RAJEEV;NEHL THOMAS WOLFGANG;RAJALA ALEXANDRU;NAMUDURI CHANDRA S. |
分类号 |
H02K21/12 |
主分类号 |
H02K21/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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