Consequent pole-type interior permanent magnet synchronous motor
AssigneeSamsung Electronics Co., Ltd.
InventorsByoungsoo Ko, Hyungchul Lee, Junseok Kim, Hongseok Kim
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Abstract
A consequent pole type interior permanent magnet synchronous motor includes a stator; a rotor rotatable inside the stator; a plurality of permanent magnets inside the rotor; and a plurality of slits formed along a radial direction of the rotor such that the plurality of slits are each between a respective two adjacent permanent magnets among the plurality of permanent magnets. The number of a plurality of consequent poles formed in the rotor by the plurality of permanent magnets is smaller than the number of the plurality of permanent magnets.
Claims18
A consequent pole type interior permanent magnet motor comprising:
- a stator;
- a rotor rotatable inside the stator;
- a plurality of permanent magnets inside the rotor;
- and
- a plurality of slits formed along a radial direction of the rotor so that each slit of the plurality of slits is:
- between a respective two adjacent permanent magnets of the plurality of permanent magnets, and
- configured to increase a magnetic resistance between the respective two adjacent permanent magnets,
- wherein consequent poles are formed between two adjacent permanent magnets, of the plurality of permanent magnets, that have a same polarity,
- a magnetic flux generated inside the rotor by a permanent magnet of the respective two adjacent permanent magnets is directed more toward a consequent pole of the consequent poles than toward a slit between the two adjacent permanent magnets due to the increased magnetic resistance caused by the slit between the respective two adjacent permanent magnets, and
- a number of the consequent poles formed in the rotor is less than a number of the plurality of permanent magnets.
Dependencies are inferred from the claim text.