초록 ▼

Disclosed is a permanent magnet field-type rotating machine of a high efficiency having an internal magnet-type rotor. The rotating machine comprises an internal magnet-type rotor having a plurality of permanent magnets embedded in a rotor yoke, and a stator disposed in opposed, spaced relationship

Disclosed is a permanent magnet field-type rotating machine of a high efficiency having an internal magnet-type rotor. The rotating machine comprises an internal magnet-type rotor having a plurality of permanent magnets embedded in a rotor yoke, and a stator disposed in opposed, spaced relationship to the rotor, with an air gap formed between the rotor and the stator. The rotor yoke comprises a member in which ferromagnetic regions and non-magnetic regions coexist, and the non-magnetic regions are disposed respectively at those positions of the rotor yoke where leakage magnetic flux is liable to be generated.

대표청구항 ▼

A permanent magnet field-type rotating machine comprising: an internal magnet-type rotor having a plurality of permanent magnets embedded in a rotor yoke: and a stator disposed in opposed, spaced relationship to said rotor, with an air gap formed between said rotor and said stator: wherein said roto

A permanent magnet field-type rotating machine comprising: an internal magnet-type rotor having a plurality of permanent magnets embedded in a rotor yoke: and a stator disposed in opposed, spaced relationship to said rotor, with an air gap formed between said rotor and said stator: wherein said rotor yoke is composed of a member, comprising ferromagnetic regions and non-magnetic regions coexisting and formed of a single material comprising different crystalline structures which correspond to said ferromagnetic regions and said non-magnetic regions, respectively, said non-magnetic regions being arranged at respective positions of said rotor yoke where leakage magnetic flux is liable to be generated.