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AssigneeFujitsu General Limited
InventorsYoshichika Fukuda, Pairoj Patisonticharoen, Yuusuke Kikuchi, Hiroki Nakagawara
Estimating the term…
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.
A magnet embedded rotor comprising permanent magnets embedded in an iron core of a rotor at a fixed interval, a notch part and a first protruding part formed on an outer face between salient poles in said iron core of the rotor corresponding to said multiple permanent magnets, non-magnetic parts for preventing the short circuit of magnetic flux formed at both edges of said permanent magnets, a bridge part between the non-magnetic part and said notch part which is narrowed to an extent to cause a magnetic saturation, and a second protruding part extending to the outer direction formed at said notch part.
An electric motor with a magnet embedded rotor comprising a stator, a rotor and permanent magnets embedded in an iron core of said rotor at a fixed interval;
Dependencies are inferred from the claim text.