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US 2006/0220485 A1Published application
Motor
AssigneeLG Electronics Inc.
InventorsJang Ho Shim, Jin Park, Sung Ho Lee, Byung Kim
Life of this patent
Estimating the term…
Abstract
A motor includes a stator and a rotor rotated due to the interaction between the rotor and the stator. Since overhangs are protruded only from the circumference of a rotor core of the rotor facing the stator in the axial direction, manufacturing costs for improving performance and core loss of the stator are minimized. Additionally, since the rotor core is manufactured by iron powder metallurgy, the rotor core is conveniently designed.
Claims20
A motor comprising:
- a rotor including:
- a rotor core arranged to confront a stator;
- and
- a plurality of magnets attached to the rotor core;
- wherein the rotor core includes overhangs protruded from the circumference confronting the stator in the axial direction.
2 more elements
A motor comprising:
- a stator;
- and
- a rotor comprising:
- a rotor core, rotatably installed in the stator, in which a plurality of overhangs protruded from the outer circumference of the rotor core in the axial direction in the radial configuration;
- and
- a plurality of magnets attached to the rotor core in the radial configuration;
- wherein each of the overhangs of the rotor core is positioned between the stator and each of the magnets in the radial direction of the rotor.
4 more elements
A motor comprising:
- a stator;
- and
- a rotor rotatably installed in the stator and rotated due to the electromagnetic interaction between the rotor and the stator, the rotor comprising:
- a rotor core, rotatably installed in the stator, in which a plurality of overhangs protruded from the outer circumference of the rotor core in the axial direction in the radial configuration;
- and
- a plurality of magnets attached to the rotor core in the radial configuration;
- wherein each of the overhangs of the rotor core is positioned between the stator and each of the magnets in the radial direction of the rotor, and the axial length of the overhangs is shorter when at least a part of the respective overhangs of the rotor core goes away from the stator in the radial direction of the rotor, and
- each of the magnets has an arc-shape convex toward the center of the rotor core and surrounds each of the overhangs of the rotor core.
5 more elements
Dependencies are inferred from the claim text.