Motor
AssigneeSamsung Electronics Co., Ltd.
InventorWoong Hwang
Life of this patent
Estimating the term…
Abstract
A motor may include a shaft, a stator and a rotor. The rotor may include a plurality of magnets, a casing and a rotor core. The rotor core may include a plurality of first core layers and a plurality of second core layers. The first core layer may include a base part through which the shaft passes, a plurality of core parts spaced apart from each other along a circumferential direction of the base part, and a plurality of bridge parts configured so that each of the plurality of bridge parts extends from a corresponding core part of the plurality of core parts toward the base part, and is bent toward the corresponding core part.
Claims20
A motor comprising:
- a shaft;
- a stator;
- and
- a rotor,
- wherein the rotor includes:
- a plurality of magnets;
- a casing;
- and
- a rotor core,
- wherein the rotor core includes a plurality of first core layers and a plurality of second core layers,
- wherein the first core layer includes:
- a base part through which the shaft passes,
- a plurality of core parts spaced apart from each other along a circumferential direction of the base part, and
- a plurality of bridge parts configured so that each of the plurality of bridge parts extends from a corresponding core part of the plurality of core parts toward the base part, and is bent toward the corresponding core part.
A motor comprising:
- a shaft;
- a stator;
- and
- a rotor,
- wherein the rotor includes:
- a plurality of magnets;
- a casing;
- and
- a rotor core,
- wherein the rotor core includes:
- a through hole into which the shaft is inserted,
- a plurality of first core layers, and
- a plurality of second core layers,
- wherein first core layer includes:
- a plurality of core parts spaced apart from each other along a circumferential direction of the through hole, and
- a plurality of bridge parts including a pair of stop protrusions respectively protruding in a circumferential direction from each side of, and bent toward, an outer end of each core part of the plurality of core parts.
A method of manufacturing a motor including a shaft, a stator and a rotor including a plurality of magnets, a casing and a rotor core, the method comprising:
- forming the rotor core by stacking a first core layer, including a plurality of bridge parts, and a second core layer not including the plurality of bridge parts;
- seating the rotor core on a lower mold;
- mounting the plurality of magnets on the rotor core;
- and
- lowering an upper mold having a punching part to punch the plurality of bridge parts of the first core layer.
Dependencies are inferred from the claim text.