Invention Grant
US08212447B2 Magnet embedded rotor, electric motor using the same rotor, and compressor using the same motor 有权
磁铁嵌入式转子,使用同一转子的电动机和使用相同电动机的压缩机

Magnet embedded rotor, electric motor using the same rotor, and compressor using the same motor
Abstract:
A magnet embedded rotor is provided in which permanent magnets are embedded in the iron core of the rotor at a fixed interval. Notch parts are formed at the first protruding part and both the sides of the first protruding parts on the outer face between salient poles in the iron core of the rotor correspond to the multiple permanent magnets. Non-magnetic parts for preventing the short circuit of magnetic flux are formed at both the edges of the permanent magnets. A bridge part between the non-magnetic parts and the notch parts are narrowed as much as possible to an extent to cause a magnetic saturation, and one or multiple of the second protruding part extending to the direction of the outer face are formed at the notch parts.
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