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US 10,707,708 B2Granted
Rotor core, rotor, and motor including same
AssigneeLG Innotek Co., Ltd.
InventorMyoung Seok Lee
Life of this patent
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Abstract
The present invention provides a rotor core, which comprises a plurality of grooves formed at the same interval along the circumferential direction, wherein the number of the grooves is an integer multiple of the least common multiple of commonly used pole number.
Claims9
A rotor comprising:
- a rotor core comprising a plurality of grooves formed at regular intervals in a circumferential direction, wherein the plurality of grooves comprises a plurality of reference grooves;
- and a number of the plurality of grooves is a least common multiple of at least two different positive integer numbers;
- and
- a plurality of magnets separated by the plurality of reference grooves of the plurality of grooves and disposed on an outer circumferential surface of the rotor core.
1 more element
A motor comprising:
- a rotational shaft;
- a rotor having a hole in which the rotational shaft is disposed;
- and
- a stator disposed at an outer side of the rotor,
- wherein the rotor comprises a rotor core coupled to the rotational shaft and a plurality of magnets disposed on an outer circumferential surface of the rotor core,
- the rotor core comprises a plurality of grooves formed at regular intervals in a circumferential direction, the plurality of grooves comprises a plurality of reference grooves, and a number of the plurality of grooves is a least common multiple of at least two different positive integer numbers;
- and
- the magnets of the plurality of magnets are separated by the reference grooves of the plurality of grooves, respectively.
5 more elements
Dependencies are inferred from the claim text.