Motor
AssigneeLG Innotek Co., Ltd.
InventorSun Ho JO
Life of this patent
Estimating the term…
Abstract
The present invention provides a motor including a shaft, a rotor coupled to the shaft, and a stator disposed outside the rotor, wherein the rotor includes a rotor core, which has a plurality of pockets are radially formed around the shaft, and magnets inserted into the pockets, and the rotor core, which is disposed outside the magnets, includes a plurality of core plates stacked in an axial direction, the core plate includes a center part and a plurality of radial parts connected to the center part, each of the plurality of radial parts includes surfaces forming the pocket and a stepped portion having a step, and the plurality of stepped portions include at least two of a first stepped portion, a second stepped portion, a third stepped portion, and a fourth stepped portion which have different shapes.
Claims11
A motor comprising:
- a shaft;
- a rotor coupled to the shaft;
- and
- a stator disposed outside the rotor,
- wherein the rotor includes a rotor core, which has a plurality of pockets radially formed around the shaft, and magnets inserted into the pockets,
- the rotor core includes a plurality of core plates stacked in an axial direction,
- each core plate includes a center part, and a plurality of radial parts connected to the center part,
- each of the plurality of radial parts includes surfaces forming the pocket and a plurality of stepped portions having a step, and
- wherein in at least one of stepped portions, a protrusion protrudes from one surface, which forms the pocket, of the radial part and a portion, which faces the protrusion, of the other surface is recessed.
Dependencies are inferred from the claim text.