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US 9,882,441 B2Granted
Motor
AssigneeSamsung Electronics Co., Ltd.
InventorsSung Il Kim, Seong Taek Lim
Life of this patent
Estimating the term…
Abstract
A motor including a stator, and a rotor adapted to rotate, wherein the stator includes a stator body, a plurality of teeth protruding from the stator body toward the rotor, and at least one stator magnetic barrier provided to each of the teeth to interrupt magnetic flux. A magnetic field produced in a direction parallel to the outer circumferential surface of the rotor is attenuated, and therefore demagnetization of permanent magnets included in the rotor may be prevented.
Claims16
A motor comprising:
- a stator;
- and
- a rotor adapted to rotate,
- wherein the stator comprises a stator body, a plurality of teeth protruding from the stator body toward the rotor, and at least one stator magnetic barrier provided to each of the teeth to interrupt magnetic flux,
- wherein the plurality of teeth include a first tooth and a second tooth provided adjacent to the first tooth, and
- a first stator magnetic barrier is formed at one side of the first tooth in a clockwise direction at a portion of the first tooth close to the rotor and a second stator magnetic barrier is formed at one side of the second tooth in a counterclockwise direction at a portion of the second tooth close to the rotor.
3 more elements
A motor comprising:
- a stator including a stator body, teeth and a coil, where slots are formed between neighboring teeth;
- a rotor adapted to rotate through magnetic interaction with the stator, the rotor including a rotor core, a pole module, and a magnetic member;
- a shaft connected to the rotor;
- and
- stator magnetic barriers to interrupt magnetic flux produced by the coil, the stator magnetic barriers being provided near end surfaces of the teeth,
- wherein each of the teeth comprises only a single stator magnetic barrier, the single stator magnetic barrier being formed alternately on one side of the teeth in a clockwise direction and on an other side of the teeth in a counterclockwise direction for each of the teeth, respectively.
3 more elements
Dependencies are inferred from the claim text.